link ssl

crypto: add certificate request support

.clang-tidy

@@ -0,0 +1 @@
+Checks: '-*,clang-diagnostic-*,performance-*,bugprone-*,llvm-*,clang-analyzer-*,misc-*,-llvm-namespace-comment,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,-llvm-header-guard,-llvm-include-order,-bugprone-suspicious-string-compare'

.gitignore

@@ -46,8 +46,23 @@ Makefile.in
 .kdev4/
 *.kdev4
 
+# VSCode
+.vscode/*
+
+# Eclipse CDT
+.cproject
+.project
+.autotools
+language.settings.xml
+
 # Python
 *.pyc
+*.stamp
+python/opendht.cpp
+python/setup.py
+
+# Doxygen
+doc/Doxyfile
 
 # git backup files
 *.orig
@@ -55,3 +70,6 @@ Makefile.in
 # vim swap files
 *.swp
 *.swo
+
+# build dir
+build

.gitmodules

@@ -0,0 +1,4 @@
+[submodule "argon2"]
+	path = argon2
+	url = https://github.com/P-H-C/phc-winner-argon2
+	ignore = dirty

.travis.yml

@@ -1,3 +1,4 @@
+dist: xenial
 sudo: required
 
 services:
@@ -5,13 +6,62 @@ services:
 
 language: cpp
 
+env:
+  matrix:
+    - OPENDHT_TEST_JOB="opendht.classic"
+    - OPENDHT_TEST_JOB="opendht.llvm"
+    - OPENDHT_TEST_JOB="opendht.proxyserver"
+    - OPENDHT_TEST_JOB="opendht.proxyclient"
+    - OPENDHT_TEST_JOB="opendht.push"
+
 before_install:
-- docker pull aberaud/opendht-deps
-- docker pull aberaud/opendht-deps-llvm
+  - |
+    # non llvm builds
+    if [[ "$OPENDHT_TEST_JOB" != *"opendht.llvm"* ]]; then
+      docker pull aberaud/opendht-deps;
+    fi
+
+  - |
+    # classic build
+    if [[ "$OPENDHT_TEST_JOB" == *"opendht.llvm"* ]]; then
+      docker pull aberaud/opendht-deps-llvm
+    fi
 
 script:
-- docker build -f docker/DockerfileTravis .
-- docker build -f docker/DockerfileTravisLlvm .
+  - |
+    # classic build
+    if [[ "$OPENDHT_TEST_JOB" == *"opendht.classic"* ]]; then
+      docker build -t opendht -f docker/DockerfileTravis .;
+    fi
+
+  - |
+    # proxy builds
+    if [[ "$OPENDHT_TEST_JOB" != *"opendht.llvm"* ]] && [[ "$OPENDHT_TEST_JOB" != *"opendht.classic"* ]]; then
+      docker build -t opendht-proxy -f docker/DockerfileTravisProxy .;
+      options='-DOPENDHT_SANITIZE=On ';
+      if [[ "$OPENDHT_TEST_JOB" == *"opendht.proxyserver"* ]] || [[ "$OPENDHT_TEST_JOB" == *"opendht.push"* ]]; then
+        options+='-DOPENDHT_PROXY_SERVER=ON ';
+      else
+        options+='-DOPENDHT_PROXY_SERVER=OFF ';
+      fi
+      if [[ "$OPENDHT_TEST_JOB" == *"opendht.proxyclient"* ]] || [[ "$OPENDHT_TEST_JOB" == *"opendht.push"* ]]; then
+        options+='-DOPENDHT_PROXY_CLIENT=ON ';
+      else
+        options+='-DOPENDHT_PROXY_CLIENT=OFF ';
+      fi
+      if [[ "$OPENDHT_TEST_JOB" == *"opendht.push"* ]]; then
+        options+='-DOPENDHT_PUSH_NOTIFICATIONS=ON ';
+      else
+        options+='-DOPENDHT_PUSH_NOTIFICATIONS=OFF ';
+      fi
+      docker run opendht-proxy /bin/sh -c "cd /root/opendht && mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX=/usr -DOPENDHT_PYTHON=ON -DOPENDHT_LTO=ON -DOPENDHT_TESTS=ON $options .. && make -j8 && ./opendht_unit_tests && make install";
+    fi
+
+  - |
+    # llvm build
+    if [[ "$OPENDHT_TEST_JOB" == *"opendht.llvm"* ]]; then
+      docker build -f docker/DockerfileTravisLlvm .
+    fi
 
 notifications:
   email:

CMakeLists.txt

@@ -1,27 +1,89 @@
-cmake_minimum_required (VERSION 2.8.6)
+cmake_minimum_required (VERSION 3.1)
 project (opendht)
-set (opendht_VERSION_MAJOR 0)
-set (opendht_VERSION_MINOR 6.1)
+set (opendht_VERSION_MAJOR 1)
+set (opendht_VERSION_MINOR 9.1)
 set (opendht_VERSION ${opendht_VERSION_MAJOR}.${opendht_VERSION_MINOR})
 set (PACKAGE_VERSION ${opendht_VERSION})
+set (VERSION "${opendht_VERSION}")
 
-list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
-
-set (prefix ${CMAKE_INSTALL_PREFIX})
-set (exec_prefix "\${prefix}")
-set (libdir "\${exec_prefix}/lib")
-set (includedir "\${prefix}/include")
-
-option (OPENDHT_DEBUG "Build with debug flags" OFF)
+# Options
 option (OPENDHT_STATIC "Build static library" ON)
 option (OPENDHT_SHARED "Build shared library" ON)
-option (OPENDHT_LTO "Build with LTO" OFF)
-
+option (OPENDHT_LOG "Build with logs" ON)
 option (OPENDHT_PYTHON "Build Python bindings" OFF)
 option (OPENDHT_TOOLS "Build DHT tools" ON)
+option (OPENDHT_SYSTEMD "Install systemd module" OFF)
+option (OPENDHT_ARGON2 "Use included argon2 sources" OFF)
+option (OPENDHT_LTO "Build with LTO" OFF)
+option (OPENDHT_SANITIZE "Build with address sanitizer and stack protector" OFF)
+option (OPENDHT_PROXY_SERVER "Enable DHT proxy server, use Restbed and jsoncpp" OFF)
+option (OPENDHT_PUSH_NOTIFICATIONS "Enable push notifications support" OFF)
+option (OPENDHT_PROXY_SERVER_IDENTITY "Allow clients to use the node identity" OFF)
+option (OPENDHT_PROXY_CLIENT "Enable DHT proxy client, use Restbed and jsoncpp" OFF)
+option (OPENDHT_INDEX "Build DHT indexation feature" OFF)
+option (OPENDHT_TESTS "Add unit tests executable" OFF)
 
-set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread -std=c++11 -Wno-return-type -Wall -Wextra -Wnon-virtual-dtor")
+find_package(Doxygen)
+option (OPENDHT_DOCUMENTATION "Create and install the HTML based API documentation (requires Doxygen)" ${DOXYGEN_FOUND})
+
+# Dependencies
+list (APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
+find_package (Threads)
+find_package (PkgConfig)
+find_package (GnuTLS 3.3 REQUIRED)
+pkg_search_module (Nettle nettle)
+find_package (Msgpack 1.2 REQUIRED)
+if (OPENDHT_TOOLS)
+    find_package (Readline 6 REQUIRED)
+endif ()
+if (NOT OPENDHT_ARGON2)
+    find_package(PkgConfig)
+    pkg_search_module(argon2 libargon2)
+    if (argon2_FOUND)
+        message("Argon2 found " ${argon2_req})
+        set(argon2_lib ", libargon2")
+    else ()
+        message("Argon2 not found, using included version.")
+        set(OPENDHT_ARGON2 ON)
+    endif()
+endif ()
+
+pkg_search_module(Jsoncpp jsoncpp)
+if (Jsoncpp_FOUND)
+    add_definitions(-DOPENDHT_JSONCPP)
+    list (APPEND opendht_SOURCES
+      src/base64.h
+      src/base64.cpp
+    )
+endif()
+
+if (OPENDHT_PROXY_SERVER OR OPENDHT_PROXY_CLIENT)
+    find_package(Restbed REQUIRED)
+    if (NOT Jsoncpp_FOUND)
+        message(SEND_ERROR "Jsoncpp is required for DHT proxy support")
+    endif()
+    pkg_search_module(SSL libssl)
+    pkg_search_module(Crypto libcrypto)
+    pkg_search_module(Tls libtls)
+endif()
+
+# Build flags
+set (CMAKE_CXX_STANDARD 11)
+set (CMAKE_CXX_STANDARD_REQUIRED on)
+set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-return-type -Wall -Wextra -Wnon-virtual-dtor -pedantic-errors -fvisibility=hidden")
+if (OPENDHT_SANITIZE)
+    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fstack-protector-strong")
+endif ()
 set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DMSGPACK_DISABLE_LEGACY_NIL -DMSGPACK_DISABLE_LEGACY_CONVERT")
+if (NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE Release)
+endif ()
+add_definitions(-DPACKAGE_VERSION="${opendht_VERSION}")
+if (OPENDHT_LOG)
+    add_definitions(-DOPENDHT_LOG=true)
+else ()
+    add_definitions(-DOPENDHT_LOG=false)
+endif()
 if (OPENDHT_LTO)
     set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -flto")
     if (CMAKE_COMPILER_IS_GNUCC)
@@ -32,12 +94,53 @@ if (OPENDHT_LTO)
     endif ()
 endif ()
 
-find_package (GnuTLS 3.1 REQUIRED)
-find_package (Msgpack 1.2 REQUIRED)
-if (OPENDHT_TOOLS)
-    find_package (Readline 6 REQUIRED)
+if (MSGPACK_INCLUDE_DIRS)
+    include_directories (SYSTEM "${MSGPACK_INCLUDE_DIRS}")
 endif ()
+if (GNUTLS_INCLUDE_DIRS)
+    include_directories (SYSTEM "${GNUTLS_INCLUDE_DIRS}")
+endif ()
+if (Nettle_INCLUDE_DIRS)
+    include_directories (SYSTEM "${Nettle_INCLUDE_DIRS}")
+endif ()
+if (Restbed_INCLUDE_DIR)
+    include_directories (SYSTEM "${Restbed_INCLUDE_DIR}")
+endif ()
+if (Jsoncpp_INCLUDE_DIRS)
+    include_directories (SYSTEM "${Jsoncpp_INCLUDE_DIRS}")
+endif ()
+if (SSL_INCLUDE_DIRS)
+    include_directories (SYSTEM "${SSL_INCLUDE_DIRS}")
+endif ()
+if (Crypto_INCLUDE_DIRS)
+    include_directories (SYSTEM "${Crypto_INCLUDE_DIRS}")
+endif ()
+if (Tls_INCLUDE_DIRS)
+    include_directories (SYSTEM "${Tls_INCLUDE_DIRS}")
+endif ()
+link_directories (${Nettle_LIBRARY_DIRS})
+link_directories (${Jsoncpp_LIBRARY_DIRS})
+link_directories (${SSL_LIBRARY_DIRS})
+link_directories (${Crypto_LIBRARY_DIRS})
+link_directories (${Tls_LIBRARY_DIRS})
+include_directories (
+    ./
+    include/
+    include/opendht/
+    ${CMAKE_CURRENT_BINARY_DIR}/include/
+)
 
+# Install dirs
+include (GNUInstallDirs)
+set (prefix ${CMAKE_INSTALL_PREFIX})
+set (exec_prefix "\${prefix}")
+set (libdir "\${exec_prefix}/${CMAKE_INSTALL_LIBDIR}")
+set (includedir "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
+set (bindir "${CMAKE_INSTALL_FULL_BINDIR}")
+set (sysconfdir "${CMAKE_INSTALL_FULL_SYSCONFDIR}")
+set (top_srcdir "${CMAKE_CURRENT_SOURCE_DIR}")
+
+# Sources
 list (APPEND opendht_SOURCES
     src/utils.cpp
     src/infohash.cpp
@@ -46,23 +149,31 @@ list (APPEND opendht_SOURCES
     src/node.cpp
     src/value.cpp
     src/dht.cpp
+    src/op_cache.cpp
+    src/storage.h
+    src/listener.h
+    src/search.h
+    src/value_cache.h
+    src/op_cache.h
+    src/net.h
+    src/parsed_message.h
+    src/request.h
     src/callbacks.cpp
     src/routing_table.cpp
     src/node_cache.cpp
     src/network_engine.cpp
     src/securedht.cpp
     src/dhtrunner.cpp
-	src/indexation/pht.cpp
-    src/argon2/argon2.c
-    src/argon2/core.c
-    src/argon2/blake2/blake2b.c
-    src/argon2/thread.c
-    src/argon2/encoding.c
-    src/argon2/ref.c
+    src/log.cpp
+    src/peer_discovery.cpp
+    src/network_utils.h
+    src/network_utils.cpp
 )
 
 list (APPEND opendht_HEADERS
+    include/opendht/def.h
     include/opendht/utils.h
+    include/opendht/sockaddr.h
     include/opendht/rng.h
     include/opendht/crypto.h
     include/opendht/infohash.h
@@ -70,51 +181,98 @@ list (APPEND opendht_HEADERS
     include/opendht/node.h
     include/opendht/value.h
     include/opendht/dht.h
+    include/opendht/dht_interface.h
     include/opendht/callbacks.h
     include/opendht/routing_table.h
     include/opendht/node_cache.h
     include/opendht/network_engine.h
     include/opendht/scheduler.h
+    include/opendht/rate_limiter.h
     include/opendht/securedht.h
     include/opendht/log.h
+    include/opendht/log_enable.h
+    include/opendht/peer_discovery.h
     include/opendht.h
-	include/opendht/indexation/pht.h
 )
 
-configure_file (
-    opendht.pc.in
-    opendht.pc
-    @ONLY
-)
+if (OPENDHT_PYTHON)
+    message("Indexation enabled since it is required for Python support")
+    set(OPENDHT_INDEX ON)
+endif()
+if (OPENDHT_INDEX)
+    list (APPEND opendht_SOURCES src/indexation/pht.cpp)
+    list (APPEND opendht_HEADERS include/opendht/indexation/pht.h)
+    add_definitions(-DOPENDHT_INDEXATION)
+endif()
 
-include_directories (
-    ./
-    include/
-    include/opendht/
-    ${CMAKE_CURRENT_BINARY_DIR}/include/
-)
-
-if (OPENDHT_DEBUG)
-    set(CMAKE_BUILD_TYPE Debug)
-else ()
-    set(CMAKE_BUILD_TYPE Release)
+if (OPENDHT_PROXY_SERVER)
+  add_definitions(-DOPENDHT_PROXY_SERVER)
+  if (OPENDHT_PROXY_SERVER_IDENTITY)
+    add_definitions(-DOPENDHT_PROXY_SERVER_IDENTITY)
+  endif()
+  list (APPEND opendht_HEADERS
+    include/opendht/dht_proxy_server.h
+  )
+  list (APPEND opendht_SOURCES
+    src/thread_pool.h
+    src/thread_pool.cpp
+    src/dht_proxy_server.cpp
+  )
 endif ()
 
-if (NOT DEFINED CMAKE_INSTALL_LIBDIR)
-    set(CMAKE_INSTALL_LIBDIR lib)
+if (OPENDHT_PROXY_CLIENT)
+  add_definitions(-DOPENDHT_PROXY_CLIENT)
+  list (APPEND opendht_HEADERS
+    include/opendht/dht_proxy_client.h
+  )
+  list (APPEND opendht_SOURCES
+    src/dht_proxy_client.cpp
+  )
 endif ()
 
+if (OPENDHT_PROXY_SERVER OR OPENDHT_PROXY_CLIENT)
+  if (OPENDHT_PUSH_NOTIFICATIONS)
+    message("Using push notification")
+    add_definitions(-DOPENDHT_PUSH_NOTIFICATIONS)
+  endif ()
+  list (APPEND opendht_HEADERS
+    include/opendht/proxy.h
+  )
+endif ()
+
+if(OPENDHT_ARGON2)
+    # make sure argon2 submodule is up to date and initialized
+    message("Initializing Argon2 submodule")
+    execute_process(COMMAND git submodule update --init)
+
+    # add local argon2 files to build
+    list (APPEND opendht_SOURCES
+        argon2/src/argon2.c
+        argon2/src/core.c
+        argon2/src/blake2/blake2b.c
+        argon2/src/thread.c
+        argon2/src/ref.c
+        argon2/src/encoding.c
+    )
+    include_directories(argon2/include/)
+endif()
+
+# Targets
 if (OPENDHT_STATIC)
     add_library (opendht-static STATIC
         ${opendht_SOURCES}
         ${opendht_HEADERS}
     )
     set_target_properties (opendht-static PROPERTIES OUTPUT_NAME "opendht")
-    if (OPENDHT_LTO)
-        target_link_libraries(opendht-static -flto -fuse-linker-plugin)
+    if (OPENDHT_ARGON2)
+        target_include_directories(opendht-static SYSTEM PRIVATE argon2)
+    else ()
+        target_include_directories(opendht-static SYSTEM PRIVATE ${argon2_INCLUDE_DIRS})
     endif ()
-    target_link_libraries(opendht-static gnutls nettle)
-    install (TARGETS opendht-static DESTINATION ${CMAKE_INSTALL_LIBDIR})
+    target_link_libraries(opendht-static
+        PRIVATE ${Restbed_LIBRARY} ${argon2_LIBRARIES} ${SSL_LIBRARIES} ${Crypto_LIBRARIES} ${Tls_LIBRARIES}
+        PUBLIC ${CMAKE_THREAD_LIBS_INIT} ${GNUTLS_LIBRARIES} ${Nettle_LIBRARIES} ${Jsoncpp_LIBRARIES})
+    install (TARGETS opendht-static DESTINATION ${CMAKE_INSTALL_LIBDIR} EXPORT opendht)
 endif ()
 
 if (OPENDHT_SHARED)
@@ -123,21 +281,83 @@ if (OPENDHT_SHARED)
         ${opendht_HEADERS}
     )
     set_target_properties (opendht PROPERTIES IMPORT_SUFFIX "_import.lib")
-    #set_target_properties (opendht PROPERTIES SOVERSION 1 VERSION 1.0.0)
-    if (OPENDHT_LTO)
-        target_link_libraries(opendht -flto -fuse-linker-plugin)
+    set_target_properties (opendht PROPERTIES SOVERSION ${opendht_VERSION_MAJOR} VERSION ${opendht_VERSION})
+    target_compile_definitions(opendht PRIVATE OPENDHT_BUILD)
+    if (OPENDHT_ARGON2)
+        target_include_directories(opendht SYSTEM PRIVATE argon2)
+    else ()
+        target_link_libraries(opendht PRIVATE ${argon2_LIBRARIES})
+        target_include_directories(opendht SYSTEM PRIVATE ${argon2_INCLUDE_DIRS})
     endif ()
-    target_link_libraries(opendht gnutls nettle)
-    install (TARGETS opendht DESTINATION ${CMAKE_INSTALL_LIBDIR})
+    target_link_libraries(opendht PRIVATE ${CMAKE_THREAD_LIBS_INIT} ${GNUTLS_LIBRARIES} ${Nettle_LIBRARIES} ${Restbed_LIBRARY} ${Jsoncpp_LIBRARIES} ${SSL_LIBRARIES} ${Crypto_LIBRARIES} ${Tls_LIBRARIES})
+    install (TARGETS opendht DESTINATION ${CMAKE_INSTALL_LIBDIR} EXPORT opendht)
 endif ()
 
 if (OPENDHT_TOOLS)
     add_subdirectory(tools)
 endif ()
+add_subdirectory(doc)
 
 if (OPENDHT_PYTHON)
     add_subdirectory(python)
 endif ()
 
+# CMake module
+include(CMakePackageConfigHelpers)
+write_basic_package_version_file("${CMAKE_CURRENT_BINARY_DIR}/opendhtConfigVersion.cmake"
+  VERSION ${opendht_VERSION}
+  COMPATIBILITY AnyNewerVersion
+)
+# PkgConfig module
+configure_file (
+    opendht.pc.in
+    opendht.pc
+    @ONLY
+)
+
+# Install targets
 install (DIRECTORY include DESTINATION ${CMAKE_INSTALL_PREFIX})
 install (FILES ${CMAKE_CURRENT_BINARY_DIR}/opendht.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+install (EXPORT opendht DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/opendht FILE opendhtConfig.cmake)
+install (FILES ${CMAKE_CURRENT_BINARY_DIR}/opendhtConfigVersion.cmake DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/opendht)
+
+# Unit tests
+if (OPENDHT_TESTS)
+  FIND_PACKAGE(Cppunit REQUIRED)
+  # unit testing
+    list (APPEND test_FILES
+      tests/infohashtester.h
+      tests/infohashtester.cpp
+      tests/valuetester.h
+      tests/valuetester.cpp
+      tests/cryptotester.h
+      tests/cryptotester.cpp
+      tests/dhtrunnertester.h
+      tests/dhtrunnertester.cpp
+      tests/peerdiscoverytester.h
+      tests/peerdiscoverytester.cpp
+    )
+    if (OPENDHT_PROXY_SERVER AND OPENDHT_PROXY_CLIENT)
+      list (APPEND test_FILES
+        tests/dhtproxytester.h
+        tests/dhtproxytester.cpp
+      )
+    endif()
+    add_executable(opendht_unit_tests
+      tests/tests_runner.cpp
+      ${test_FILES}
+    )
+    target_include_directories(opendht_unit_tests SYSTEM PRIVATE ${CPPUNIT_INCLUDE_DIRS})
+    if (OPENDHT_SHARED)
+      target_link_libraries(opendht_unit_tests opendht)
+    else ()
+      target_link_libraries(opendht_unit_tests opendht-static)
+    endif ()
+    target_link_libraries(opendht_unit_tests
+       ${CMAKE_THREAD_LIBS_INIT}
+       ${CPPUNIT_LIBRARIES}
+       ${GNUTLS_LIBRARIES}
+    )
+    enable_testing()
+    add_test(TEST opendht_unit_tests)
+endif()

MSVC/.gitignore

@@ -15,7 +15,6 @@ Release/
 *.VC.VC.opendb
 *.VC.db
 *.db
-*.filters
 
 # User-specific files (MonoDevelop/Xamarin Studio)
 *.userprefs
@@ -245,4 +244,5 @@ _Pvt_Extensions
 # FAKE - F# Make
 .fake/
 
-!config.h
+!config.h
+contrib/build/

MSVC/build_vs2015_release_x64.bat

@@ -0,0 +1,35 @@
+@echo on
+SETLOCAL EnableDelayedExpansion
+
+set SRC=%~dp0
+
+set PATH=%PATH%;%ProgramFiles(x86)%\MSBuild\14.0\Bin\
+
+set MSBUILD_ARGS=/nologo /p:Configuration=Release /p:Platform=x64 /verbosity:normal /maxcpucount:%NUMBER_OF_PROCESSORS%
+
+set TOBUILD=( ^
+contrib\build\argon2\vs2015\Argon2Ref\Argon2Ref.vcxproj, ^
+contrib\build\gmp\SMP\libgmp.vcxproj, ^
+contrib\build\nettle\SMP\libnettle.vcxproj, ^
+contrib\build\nettle\SMP\libhogweed.vcxproj, ^
+contrib\build\libiconv\SMP\libiconv.vcxproj, ^
+contrib\build\nettle\SMP\libiconv.vcxproj, ^
+contrib\build\zlib\SMP\libzlib.vcxproj, ^
+contrib\build\gnutls\SMP\libgnutls.vcxproj, ^
+contrib\build\msgpack-c\msgpack_vc8.vcxproj, ^
+opendht.vcxproj, ^
+dhtchat.vcxproj, ^
+dhtscanner.vcxproj, ^
+dhtnode.vcxproj ^
+)
+
+for %%I in %TOBUILD% do (
+    call :build "%SRC%%%I"
+)
+
+exit /B %ERRORLEVEL%
+
+:build
+echo "Building project: " %*
+msbuild %* %MSBUILD_ARGS%
+exit /B 0

MSVC/contrib/src/argon2/argon2-uwp.patch

@@ -0,0 +1,39 @@
+--- a/vs2015/Argon2Ref/Argon2Ref.vcxproj
++++ b/vs2015/Argon2Ref/Argon2Ref.vcxproj
+@@ -59,7 +59,7 @@
+     <CharacterSet>MultiByte</CharacterSet>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+-    <ConfigurationType>Application</ConfigurationType>
++    <ConfigurationType>StaticLibrary</ConfigurationType>
+     <UseDebugLibraries>false</UseDebugLibraries>
+     <PlatformToolset>v140</PlatformToolset>
+     <WholeProgramOptimization>true</WholeProgramOptimization>
+@@ -117,8 +117,8 @@
+     <IncludePath>$(SolutionDir)include;$(IncludePath)</IncludePath>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+-    <OutDir>$(SolutionDir)vs2015\build\</OutDir>
+-    <IntDir>$(SolutionDir)vs2015\build\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\..\lib\x64</OutDir>
++    <IntDir>$(ProjectDir)vs2015\build\$(ProjectName)\</IntDir>
+     <IncludePath>$(SolutionDir)include;$(IncludePath)</IncludePath>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseStatic|x64'">
+@@ -179,6 +179,7 @@
+       <IntrinsicFunctions>true</IntrinsicFunctions>
+       <SDLCheck>true</SDLCheck>
+       <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
++      <AdditionalIncludeDirectories>$(ProjectDir)..\..\include</AdditionalIncludeDirectories>
+     </ClCompile>
+     <Link>
+       <EnableCOMDATFolding>true</EnableCOMDATFolding>
+@@ -223,4 +224,4 @@
+   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+   <ImportGroup Label="ExtensionTargets">
+   </ImportGroup>
+-</Project>
++</Project>
+\ No newline at end of file
+-- 
+2.10.2.windows.1

MSVC/contrib/src/argon2/fetch_and_patch.bat

@@ -0,0 +1,22 @@
+set BUILD=%SRC%..\build
+
+set ARGON2_VERSION=1eea0104e7cb2a38c617cf90ffa46ce5db6aceda
+set ARGON2_URL=https://github.com/P-H-C/phc-winner-argon2/archive/%ARGON2_VERSION%.tar.gz
+
+mkdir %BUILD%
+
+if %USE_CACHE%==1 (
+    copy %CACHE_DIR%\%ARGON2_VERSION%.tar.gz %cd%
+) else (
+    wget %ARGON2_URL%
+)
+
+7z -y x %ARGON2_VERSION%.tar.gz && 7z -y x %ARGON2_VERSION%.tar -o%BUILD%
+del %ARGON2_VERSION%.tar && del %ARGON2_VERSION%.tar.gz && del %BUILD%\pax_global_header
+rename %BUILD%\phc-winner-argon2-%ARGON2_VERSION% argon2
+
+cd %BUILD%\argon2
+
+git apply --reject --whitespace=fix %SRC%\argon2\argon2-uwp.patch
+
+cd %SRC%

MSVC/contrib/src/fetch_and_patch.bat

@@ -0,0 +1,23 @@
+@echo OFF
+SETLOCAL EnableDelayedExpansion
+
+set SRC=%~dp0
+
+if "%USE_CACHE%"=="" (
+    set USE_CACHE=0
+)
+
+set DEPENDENCIES=( ^
+argon2, ^
+gmp, ^
+gnutls, ^
+iconv, ^
+msgpack, ^
+nettle, ^
+opendht, ^
+zlib ^
+)
+
+for %%I in %DEPENDENCIES% do (
+    call %SRC%\%%I\fetch_and_patch.bat
+)

MSVC/contrib/src/gmp/fetch_and_patch.bat

@@ -0,0 +1,22 @@
+set BUILD=%SRC%..\build
+
+set GMP_VERSION=3c8f5a0ae0c2ac9ff0ea31b27f71b152979b556d
+set GMP_URL=https://github.com/ShiftMediaProject/gmp/archive/%GMP_VERSION%.tar.gz
+
+mkdir %BUILD%
+
+if %USE_CACHE%==1 (
+    copy %CACHE_DIR%\%GMP_VERSION%.tar.gz %cd%
+) else (
+    wget %GMP_URL%
+)
+
+7z -y x %GMP_VERSION%.tar.gz && 7z -y x %GMP_VERSION%.tar -o%BUILD%
+del %GMP_VERSION%.tar && del %GMP_VERSION%.tar.gz && del %BUILD%\pax_global_header
+rename %BUILD%\gmp-%GMP_VERSION% gmp
+
+cd %BUILD%\gmp
+
+git apply --reject --whitespace=fix %SRC%\gmp\gmp-uwp.patch
+
+cd %SRC%

MSVC/contrib/src/gmp/gmp-uwp.patch

@@ -0,0 +1,110 @@
+--- a/SMP/libgmp.vcxproj
++++ b/SMP/libgmp.vcxproj
+@@ -1248,6 +1248,7 @@
+     <ProjectGuid>{02B94302-23D6-43EF-8865-95CDE99D5DC2}</ProjectGuid>
+     <RootNamespace>libgmp</RootNamespace>
+     <ProjectName>libgmp</ProjectName>
++    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+   </PropertyGroup>
+   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+@@ -1368,65 +1369,65 @@
+   </ImportGroup>
+   <PropertyGroup Label="UserMacros" />
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libgmpd</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libgmpd</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLL|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>gmpd</TargetName>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLL|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>gmpd</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libgmp</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseLTO|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libgmp</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libgmp</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseLTO|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libgmp</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLL|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>gmp</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLL|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>gmp</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+--- a/SMP/config.h
++++ b/SMP/config.h
+@@ -202,7 +202,7 @@
+ /* #undef HAVE_NATIVE_mpn_add_n_sub_n */
+ #define HAVE_NATIVE_mpn_add_nc 1
+ #if defined(__x86_64) || defined(_M_X64)
+-#define HAVE_NATIVE_mpn_addaddmul_1msb0 1
++#define HAVE_NATIVE_mpn_addaddmul_1msb0 0
+ #define HAVE_NATIVE_mpn_addlsh1_n 1
+ #define HAVE_NATIVE_mpn_addlsh2_n 1
+ #define HAVE_NATIVE_mpn_addlsh_n 1
+-- 
+2.8.1.windows.1
+

MSVC/contrib/src/gnutls/fetch_and_patch.bat

@@ -0,0 +1,24 @@
+set BUILD=%SRC%..\build
+
+set GNUTLS_VERSION=f2d0ade53ff644da55244aed79d05eca78d11a2f
+set GNUTLS_URL=https://github.com/ShiftMediaProject/gnutls/archive/%GNUTLS_VERSION%.tar.gz
+
+mkdir %BUILD%
+
+if %USE_CACHE%==1 (
+    copy %CACHE_DIR%\%GNUTLS_VERSION%.tar.gz %cd%
+) else (
+    wget %GNUTLS_URL%
+)
+
+7z -y x %GNUTLS_VERSION%.tar.gz && 7z -y x %GNUTLS_VERSION%.tar -o%BUILD%
+del %GNUTLS_VERSION%.tar && del %GNUTLS_VERSION%.tar.gz && del %BUILD%\pax_global_header
+rename %BUILD%\gnutls-%GNUTLS_VERSION% gnutls
+
+cd %BUILD%\gnutls
+
+git apply --reject --whitespace=fix %SRC%\gnutls\gnutls-no-egd.patch
+git apply --reject --whitespace=fix %SRC%\gnutls\read-file-limits.h.patch
+git apply --reject --whitespace=fix %SRC%\gnutls\gnutls-uwp.patch
+
+cd %SRC%

MSVC/contrib/src/gnutls/gnutls-no-egd.patch

@@ -0,0 +1,107 @@
+ {a => b}/lib/nettle/Makefile.am  |  2 +-
+ {a => b}/lib/nettle/Makefile.in  | 11 +++++------
+ {a => b}/lib/nettle/rnd-common.c |  7 +++++--
+ 3 files changed, 11 insertions(+), 9 deletions(-)
+
+diff --git a/lib/nettle/Makefile.am b/lib/nettle/Makefile.am
+index e84ed1f..4767663 100644
+--- a/lib/nettle/Makefile.am
++++ b/lib/nettle/Makefile.am
+@@ -38,7 +38,7 @@ endif
+ 
+ noinst_LTLIBRARIES = libcrypto.la
+ 
+-libcrypto_la_SOURCES = pk.c mpi.c mac.c cipher.c init.c egd.c egd.h \
++libcrypto_la_SOURCES = pk.c mpi.c mac.c cipher.c init.c \
+ 	gnettle.h rnd-common.h rnd-common.c \
+ 	rnd.c
+ 
+diff --git a/lib/nettle/Makefile.in b/lib/nettle/Makefile.in
+index 88ae7cf..6ddd536 100644
+--- a/lib/nettle/Makefile.in
++++ b/lib/nettle/Makefile.in
+@@ -221,8 +221,8 @@ CONFIG_CLEAN_FILES =
+ CONFIG_CLEAN_VPATH_FILES =
+ LTLIBRARIES = $(noinst_LTLIBRARIES)
+ libcrypto_la_LIBADD =
+-am__libcrypto_la_SOURCES_DIST = pk.c mpi.c mac.c cipher.c init.c egd.c \
+-	egd.h gnettle.h rnd-common.h rnd-common.c rnd.c rnd-fips.c \
++am__libcrypto_la_SOURCES_DIST = pk.c mpi.c mac.c cipher.c init.c \
++	gnettle.h rnd-common.h rnd-common.c rnd.c rnd-fips.c \
+ 	int/drbg-aes-self-test.c int/dsa-fips.h \
+ 	int/dsa-keygen-fips186.c int/dsa-validate.c \
+ 	int/provable-prime.c int/drbg-aes.c int/drbg-aes.h \
+@@ -233,7 +233,7 @@ am__dirstamp = $(am__leading_dot)dirstamp
+ @ENABLE_FIPS140_TRUE@	int/dsa-keygen-fips186.lo \
+ @ENABLE_FIPS140_TRUE@	int/dsa-validate.lo int/provable-prime.lo \
+ @ENABLE_FIPS140_TRUE@	int/drbg-aes.lo int/rsa-keygen-fips186.lo
+-am_libcrypto_la_OBJECTS = pk.lo mpi.lo mac.lo cipher.lo init.lo egd.lo \
++am_libcrypto_la_OBJECTS = pk.lo mpi.lo mac.lo cipher.lo init.lo \
+ 	rnd-common.lo rnd.lo $(am__objects_1)
+ libcrypto_la_OBJECTS = $(am_libcrypto_la_OBJECTS)
+ AM_V_lt = $(am__v_lt_@AM_V@)
+@@ -1279,8 +1279,8 @@ AM_CPPFLAGS = -I$(srcdir)/int -I$(srcdir)/../../gl \
+ 	-I$(builddir)/../includes -I$(builddir)/../../gl \
+ 	-I$(srcdir)/.. $(am__append_1)
+ noinst_LTLIBRARIES = libcrypto.la
+-libcrypto_la_SOURCES = pk.c mpi.c mac.c cipher.c init.c egd.c egd.h \
+-	gnettle.h rnd-common.h rnd-common.c rnd.c $(am__append_2)
++libcrypto_la_SOURCES = pk.c mpi.c mac.c cipher.c init.c gnettle.h \
++	rnd-common.h rnd-common.c rnd.c $(am__append_2)
+ all: all-am
+ 
+ .SUFFIXES:
+@@ -1355,7 +1355,6 @@ distclean-compile:
+ 	-rm -f *.tab.c
+ 
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cipher.Plo@am__quote@
+-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/egd.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/init.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mac.Plo@am__quote@
+ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mpi.Plo@am__quote@
+diff --git a/lib/nettle/rnd-common.c b/lib/nettle/rnd-common.c
+index c69ff3b..80b5f32 100644
+--- a/lib/nettle/rnd-common.c
++++ b/lib/nettle/rnd-common.c
+@@ -139,7 +139,7 @@ void _rnd_system_entropy_deinit(void)
+ #include <sys/time.h>
+ #include <fcntl.h>
+ #include <locks.h>
+-#include "egd.h"
++//#include "egd.h"
+ 
+ static int _gnutls_urandom_fd = -1;
+ static mode_t _gnutls_urandom_fd_mode = 0;
+@@ -208,6 +208,7 @@ static int _rnd_get_system_entropy_urandom(void* _rnd, size_t size)
+ 	return 0;
+ }
+ 
++#if 0
+ static
+ int _rnd_get_system_entropy_egd(void* _rnd, size_t size)
+ {
+@@ -232,6 +233,7 @@ int _rnd_get_system_entropy_egd(void* _rnd, size_t size)
+ 
+ 	return 0;
+ }
++#endif
+ 
+ int _rnd_system_entropy_check(void)
+ {
+@@ -268,6 +270,7 @@ int _rnd_system_entropy_init(void)
+ 
+ 	return 0;
+ fallback:
++#if 0
+ 	_gnutls_urandom_fd = _rndegd_connect_socket();
+ 	if (_gnutls_urandom_fd < 0) {
+ 		_gnutls_debug_log("Cannot open egd socket!\n");
+@@ -281,7 +284,7 @@ fallback:
+ 	}
+ 
+ 	_rnd_get_system_entropy = _rnd_get_system_entropy_egd;
+-	
++#endif
+ 	return 0;
+ }
+ 

MSVC/contrib/src/gnutls/gnutls-uwp.patch

@@ -0,0 +1,445 @@
+--- a/SMP/libgnutls.vcxproj
++++ b/SMP/libgnutls.vcxproj
+@@ -743,91 +744,91 @@
+   </ImportGroup>
+   <PropertyGroup Label="UserMacros" />
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libgnutlsd</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libgnutlsd</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLL|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>gnutlsd</TargetName>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLLStaticDeps|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>gnutlsd</TargetName>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLL|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>gnutlsd</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLLStaticDeps|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>gnutlsd</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libgnutls</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseLTO|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libgnutls</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libgnutls</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseLTO|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libgnutls</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLL|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>gnutls</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLLStaticDeps|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>gnutls</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLL|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>gnutls</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLLStaticDeps|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>gnutls</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+@@ -1834,7 +1834,7 @@ del /f /q $(OutDir)\licenses\gnutls.txt
+       <BufferSecurityCheck>false</BufferSecurityCheck>
+       <FloatingPointModel>Fast</FloatingPointModel>
+       <FloatingPointExceptions>false</FloatingPointExceptions>
+-      <PreprocessorDefinitions>HAVE_CONFIG_H;inline=__inline;ASN1_BUILDING;ASN1_STATIC;LOCALEDIR=".";__func__=__FUNCTION__;ASM_X86;ASM_X86_64;_WIN32_WINNT=0x0600;NDEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
++      <PreprocessorDefinitions>RING_UWP;HAVE_WIN32_LOCKS;HAVE_CONFIG_H;inline=__inline;ASN1_BUILDING;ASN1_STATIC;LOCALEDIR=".";__func__=__FUNCTION__;ASM_X86_64;_WIN32_WINNT=0x0600;NDEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+       <AdditionalIncludeDirectories>.\;.\lib;..\lib;..\lib\accelerated;..\lib\auth;..\lib\ext;..\lib\extras;..\lib\minitasn1;..\lib\nettle;..\lib\nettle\int;..\lib\openpgp;..\lib\opencdk;..\lib\x509;..\lib\includes;..\gl;$(OutDir)\include;..\lib\accelerated\x86;$(ProjectDir)\..\..\prebuilt\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+       <ExceptionHandling>false</ExceptionHandling>
+       <DisableSpecificWarnings>4996;4244;4018;4146;4267;4028;4101;4020;4047;4024;4005;4311;4312;4334;4116;4090;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+@@ -1850,7 +1850,7 @@ del /f /q $(OutDir)\licenses\gnutls.txt
+       <OutputFile>$(OutDir)\lib\x64\$(TargetName)$(TargetExt)</OutputFile>
+       <TargetMachine>MachineX64</TargetMachine>
+       <SubSystem>Windows</SubSystem>
+-      <AdditionalDependencies>Crypt32.lib;Ws2_32.lib;libzlib.lib;libiconv.lib;libhogweed.lib;libgmp.lib;libnettle.lib;%(AdditionalDependencies)</AdditionalDependencies>
++      <AdditionalDependencies>bcrypt.lib;Ws2_32.lib;libzlib.lib;libiconv.lib;libhogweed.lib;libgmp.lib;libnettle.lib;%(AdditionalDependencies)</AdditionalDependencies>
+       <AdditionalLibraryDirectories>$(OutDir)\lib\x64\;$(ProjectDir)\..\..\prebuilt\lib\x64\;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+       <AdditionalOptions>/IGNORE:4006,4221,4042 %(AdditionalOptions)</AdditionalOptions>
+     </Lib>
+--- a/lib/nettle/rnd-common.c
++++ b/lib/nettle/rnd-common.c
+@@ -45,6 +45,7 @@
+ #include <sys/types.h>
+ #include <sys/stat.h>
+ #include <unistd.h>
++#include <bcrypt.h>
+ 
+ /* gnulib wants to claim strerror even if it cannot provide it. WTF */
+ #undef strerror
+@@ -88,16 +89,25 @@ void _rnd_get_event(struct event_st *e)
+ #include <wincrypt.h>
+ 
+ static HCRYPTPROV device_fd = 0;
++static BCRYPT_ALG_HANDLE bdevice_fd = 0;
+ 
+ static
+ int _rnd_get_system_entropy_win32(void* rnd, size_t size)
+ {
++#ifndef RING_UWP
+ 	if (!CryptGenRandom(device_fd, (DWORD) size, rnd)) {
+ 		_gnutls_debug_log("Error in CryptGenRandom: %d\n",
+ 					(int)GetLastError());
+ 		return GNUTLS_E_RANDOM_DEVICE_ERROR;
+ 	}
+-
++#else
++    NTSTATUS ret = BCryptGenRandom(bdevice_fd, rnd, (ULONG) size, 0);
++    if (!(BCRYPT_SUCCESS(ret))) {
++		_gnutls_debug_log("Error in BCryptGenRandom: %d\n",
++					(int)GetLastError());
++		return GNUTLS_E_RANDOM_DEVICE_ERROR;
++	}
++#endif
+ 	return 0;
+ }
+ 
+@@ -111,7 +121,7 @@ int _rnd_system_entropy_check(void)
+ int _rnd_system_entropy_init(void)
+ {
+ 	int old;
+-
++#ifndef RING_UWP
+ 	if (!CryptAcquireContext
+ 		(&device_fd, NULL, NULL, PROV_RSA_FULL,
+ 		 CRYPT_SILENT | CRYPT_VERIFYCONTEXT)) {
+@@ -119,13 +129,26 @@ int _rnd_system_entropy_init(void)
+ 			("error in CryptAcquireContext!\n");
+ 		return GNUTLS_E_RANDOM_DEVICE_ERROR;
+ 	}
+-	
++#else
++	NTSTATUS ret = BCryptOpenAlgorithmProvider(&bdevice_fd,
++        BCRYPT_RNG_ALGORITHM, MS_PRIMITIVE_PROVIDER,
++        0);
++	if (!(BCRYPT_SUCCESS(ret))) {
++		_gnutls_debug_log
++			("error in BCryptOpenAlgorithmProvider!\n");
++		return GNUTLS_E_RANDOM_DEVICE_ERROR;
++	}
++#endif
+ 	return 0;
+ }
+ 
+ void _rnd_system_entropy_deinit(void)
+ {
++#ifndef RING_UWP
+ 	CryptReleaseContext(device_fd, 0);
++#else
++    BCryptCloseAlgorithmProvider(bdevice_fd, 0);
++#endif
+ }
+ 
+ #else /* POSIX */
+--- a/lib/opencdk/misc.c
++++ b/lib/opencdk/misc.c
+@@ -34,7 +34,6 @@
+ #include <gnutls_int.h>
+ #include <gnutls_str.h>
+ 
+-
+ u32 _cdk_buftou32(const byte * buf)
+ {
+ 	u32 u;
+@@ -149,6 +148,13 @@ int _cdk_check_args(int overwrite, const char *in, const char *out)
+ }
+ 
+ #ifdef _WIN32
++#if (_WIN32_WINNT >= 0x0600)
++FILE *_cdk_tmpfile(void)
++{
++	return NULL;
++}
++#else
++
+ #include <io.h>
+ #include <fcntl.h>
+ 
+@@ -183,6 +189,7 @@ FILE *_cdk_tmpfile(void)
+ 	_close(fd);
+ 	return NULL;
+ }
++#endif /*_WIN32*/
+ #else
+ FILE *_cdk_tmpfile(void)
+ {
+--- a/lib/system-keys-win.c
++++ b/lib/system-keys-win.c
+@@ -20,9 +20,10 @@
+ 
+ // Before including any Windows header we need to set _WIN32_WINNT to Vista
+ // (or higher) so that the NCRYPT stuff can be used.
+-#if _WIN32_WINNT < 0x600
++#define _WIN32_WINNT 0x0A00
++#if _WIN32_WINNT < 0x0600
+ #undef _WIN32_WINNT
+-#define _WIN32_WINNT 0x600
++#define _WIN32_WINNT 0x0600
+ #endif
+ 
+ 
+@@ -1075,7 +1076,11 @@ int _gnutls_system_key_init(void)
+ 	int ret;
+ 
+ #ifdef DYN_NCRYPT
+-	ncrypt_lib = LoadLibraryA("ncrypt.dll");
++#if (_WIN32_WINNT < 0x0A00)
++	ncrypt_lib = LoadLibrary("ncrypt.dll");
++#else
++    ncrypt_lib = LoadPackagedLibrary("ncrypt.dll", 0);
++#endif
+ 	if (ncrypt_lib == NULL) {
+ 		return gnutls_assert_val(GNUTLS_E_CRYPTO_INIT_FAILED);
+ 	}
+--- a/lib/system-keys-win.c
++++ b/lib/system-keys-win.c
+@@ -396,7 +396,11 @@ _gnutls_privkey_import_system_url(gnutls_privkey_t pkey,
+ 	blob.cbData = id_size;
+ 	blob.pbData = id;
+ 
+-	store = CertOpenSystemStore(0, "MY");
++	store = CertOpenStore(  CERT_STORE_PROV_SYSTEM_A,
++                        X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
++                        0,
++                        CERT_SYSTEM_STORE_CURRENT_USER,
++                        (const void*)"MY");
+ 	if (store == NULL) {
+ 		gnutls_assert();
+ 		ret = GNUTLS_E_FILE_ERROR;
+@@ -535,7 +539,11 @@ _gnutls_x509_crt_import_system_url(gnutls_x509_crt_t crt, const char *url)
+ 	blob.cbData = id_size;
+ 	blob.pbData = id;
+ 
+-	store = CertOpenSystemStore(0, "MY");
++	store = CertOpenStore(  CERT_STORE_PROV_SYSTEM_A,
++                        X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
++                        0,
++                        CERT_SYSTEM_STORE_CURRENT_USER,
++                        (const void*)"MY");
+ 	if (store == NULL) {
+ 		gnutls_assert();
+ 		ret = GNUTLS_E_FILE_ERROR;
+@@ -776,7 +784,11 @@ gnutls_system_key_iter_get_info(gnutls_system_key_iter_t *iter,
+ 		if (*iter == NULL)
+ 			return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
+ 
+-		(*iter)->store = CertOpenSystemStore(0, "MY");
++		(*iter)->store = CertOpenStore(  CERT_STORE_PROV_SYSTEM_A,
++                        X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
++                        0,
++                        CERT_SYSTEM_STORE_CURRENT_USER,
++                        (const void*)"MY");
+ 		if ((*iter)->store == NULL) {
+ 			gnutls_free(*iter);
+ 			*iter = NULL;
+@@ -841,7 +853,11 @@ int gnutls_system_key_delete(const char *cert_url, const char *key_url)
+ 	blob.cbData = id_size;
+ 	blob.pbData = id;
+ 
+-	store = CertOpenSystemStore(0, "MY");
++	store = CertOpenStore(  CERT_STORE_PROV_SYSTEM_A,
++                        X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
++                        0,
++                        CERT_SYSTEM_STORE_CURRENT_USER,
++                        (const void*)"MY");
+ 	if (store != NULL) {
+ 		do {
+ 			cert = CertFindCertificateInStore(store,
+--- a/lib/system.c
++++ b/lib/system.c
+@@ -446,9 +446,17 @@ int add_system_trust(gnutls_x509_trust_list_t list, unsigned int tl_flags,
+ 		gnutls_datum_t data;
+ 
+ 		if (i == 0)
+-			store = CertOpenSystemStore(0, "ROOT");
++            store = CertOpenStore(  CERT_STORE_PROV_SYSTEM_A,
++                        X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
++                        0,
++                        CERT_SYSTEM_STORE_CURRENT_USER,
++                        (const void*)"ROOT");
+ 		else
+-			store = CertOpenSystemStore(0, "CA");
++			store = CertOpenStore(  CERT_STORE_PROV_SYSTEM_A,
++                        X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
++                        0,
++                        CERT_SYSTEM_STORE_CURRENT_USER,
++                        (const void*)"CA");
+ 
+ 		if (store == NULL)
+ 			return GNUTLS_E_FILE_ERROR;
+--- a/lib/accelerated/x86/x86-common.c
++++ b/lib/accelerated/x86/x86-common.c
+@@ -652,6 +652,7 @@ void register_x86_intel_crypto(unsigned capabilities)
+ 
+ void register_x86_crypto(void)
+ {
++#ifndef RING_UWP
+ 	unsigned capabilities = 0;
+ 	char *p;
+ 	p = secure_getenv("GNUTLS_CPUID_OVERRIDE");
+@@ -663,5 +664,7 @@ void register_x86_crypto(void)
+ #ifdef ENABLE_PADLOCK
+ 	register_x86_padlock_crypto(capabilities);
+ #endif
++#endif
++    register_x86_intel_crypto(0);
+ }
+ 
+--- a/lib/gnutls_global.c
++++ b/lib/gnutls_global.c
+@@ -240,7 +240,9 @@ int gnutls_global_init(void)
+ 
+ 	_gnutls_switch_lib_state(LIB_STATE_INIT);
+ 
++#ifndef RING_UWP
+ 	e = secure_getenv("GNUTLS_DEBUG_LEVEL");
++#endif
+ 	if (e != NULL) {
+ 		level = atoi(e);
+ 		gnutls_global_set_log_level(level);
+@@ -473,8 +475,10 @@ const char *e;
+ 	if (_gnutls_global_init_skip() != 0)
+ 		return;
+ 
++#ifndef RING_UWP
+ 	e = secure_getenv("GNUTLS_NO_EXPLICIT_INIT");
+-	if (e != NULL) {
++#endif
++    if (e != NULL) {
+ 		ret = atoi(e);
+ 		if (ret == 1)
+ 			return;
+@@ -494,7 +498,9 @@ static void _DESTRUCTOR lib_deinit(void)
+ 	if (_gnutls_global_init_skip() != 0)
+ 		return;
+ 
++#ifndef RING_UWP
+ 	e = secure_getenv("GNUTLS_NO_EXPLICIT_INIT");
++#endif
+ 	if (e != NULL) {
+ 		int ret = atoi(e);
+ 		if (ret == 1)
+--- a/lib/gnutls_kx.c
++++ b/lib/gnutls_kx.c
+@@ -105,7 +105,9 @@ static void write_nss_key_log(gnutls_session_t session, const gnutls_datum_t *pr
+ 
+ 	if (!checked_env) {
+ 		checked_env = 1;
++#ifndef RING_UWP
+ 		keylogfile = secure_getenv("SSLKEYLOGFILE");
++#endif
+ 	}
+ 
+ 	if (keylogfile == NULL)
+--- a/lib/system.c
++++ b/lib/system.c
+@@ -340,7 +340,11 @@ void gnutls_system_global_deinit(void)
+  */
+ int _gnutls_find_config_path(char *path, size_t max_size)
+ {
+-	const char *home_dir = secure_getenv("HOME");
++#ifndef RING_UWP
++    const char *home_dir = secure_getenv("HOME");
++#else
++    const char *home_dir = NULL;
++#endif
+ 
+ 	if (home_dir != NULL && home_dir[0] != 0) {
+ 		snprintf(path, max_size, "%s/" CONFIG_PATH, home_dir);
+@@ -349,8 +353,13 @@ int _gnutls_find_config_path(char *path, size_t max_size)
+ 
+ #ifdef _WIN32
+ 	if (home_dir == NULL || home_dir[0] == '\0') {
++#ifndef RING_UWP
+ 		const char *home_drive = getenv("HOMEDRIVE");
+ 		const char *home_path = getenv("HOMEPATH");
++#else
++        const char *home_drive = NULL;
++		const char *home_path = NULL;
++#endif
+ 
+ 		if (home_drive != NULL && home_path != NULL) {
+ 			snprintf(path, max_size, "%s%s\\" CONFIG_PATH, home_drive, home_path);
+2.8.1.windows.1
+

MSVC/contrib/src/gnutls/read-file-limits.h.patch

@@ -0,0 +1,12 @@
+--- gnutls/gl/read-file.c.orig	2012-03-06 20:59:29.600593329 -0500
++++ gnutls/gl/read-file.c	2012-03-06 20:59:44.568593328 -0500
+@@ -35,6 +35,9 @@
+ /* Get errno. */
+ #include <errno.h>
+ 
++/* Get SIZE_MAX */
++#include <limits.h>
++
+ /* Read a STREAM and return a newly allocated string with the content,
+    and set *LENGTH to the length of the string.  The string is
+    zero-terminated, but the terminating zero byte is not counted in

MSVC/contrib/src/iconv/fetch_and_patch.bat

@@ -0,0 +1,22 @@
+set BUILD=%SRC%..\build
+
+set ICONV_VERSION=65ab92f7a1699ecc39e37fb81f66e5a42aaa35c4
+set ICONV_URL=https://github.com/ShiftMediaProject/libiconv/archive/%ICONV_VERSION%.tar.gz
+
+mkdir %BUILD%
+
+if %USE_CACHE%==1 (
+    copy %CACHE_DIR%\%ICONV_VERSION%.tar.gz %cd%
+) else (
+    wget %ICONV_URL%
+)
+
+7z -y x %ICONV_VERSION%.tar.gz && 7z -y x %ICONV_VERSION%.tar -o%BUILD%
+del %ICONV_VERSION%.tar && del %ICONV_VERSION%.tar.gz && del %BUILD%\pax_global_header
+rename %BUILD%\libiconv-%ICONV_VERSION% libiconv
+
+cd %BUILD%\libiconv
+
+git apply --reject --whitespace=fix %SRC%\iconv\libiconv-uwp.patch
+
+cd %SRC%

MSVC/contrib/src/iconv/libiconv-uwp.patch

@@ -0,0 +1,99 @@
+--- a/SMP/libiconv.vcxproj
++++ b/SMP/libiconv.vcxproj
+@@ -45,6 +45,7 @@
+   <PropertyGroup Label="Globals">
+     <ProjectGuid>{CB8BB76F-D3FF-434E-A85E-7FFC0893EC9B}</ProjectGuid>
+     <RootNamespace>libiconv</RootNamespace>
++    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+   </PropertyGroup>
+   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+@@ -164,65 +165,65 @@
+   </ImportGroup>
+   <PropertyGroup Label="UserMacros" />
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libiconvd</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libiconvd</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLL|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>iconvd</TargetName>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLL|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>iconvd</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libiconv</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseLTO|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libiconv</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libiconv</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseLTO|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libiconv</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLL|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>iconv</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLL|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>iconv</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+-- 
+2.8.1.windows.1
+

MSVC/contrib/src/msgpack/fetch_and_patch.bat

@@ -0,0 +1,22 @@
+set BUILD=%SRC%..\build
+
+set MSGPACK_VERSION=1df97bc37b363a340c5ad06c5cbcc53310aaff80
+set MSGPACK_URL=https://github.com/msgpack/msgpack-c/archive/%MSGPACK_VERSION%.tar.gz
+
+mkdir %BUILD%
+
+if %USE_CACHE%==1 (
+    copy %CACHE_DIR%\%MSGPACK_VERSION%.tar.gz %cd%
+) else (
+    wget %MSGPACK_URL%
+)
+
+7z -y x %MSGPACK_VERSION%.tar.gz && 7z -y x %MSGPACK_VERSION%.tar -o%BUILD%
+del %MSGPACK_VERSION%.tar && del %MSGPACK_VERSION%.tar.gz && del %BUILD%\pax_global_header
+rename %BUILD%\msgpack-c-%MSGPACK_VERSION% msgpack-c
+
+cd %BUILD%\msgpack-c
+
+git apply --reject --whitespace=fix %SRC%\msgpack\msgpack-uwp.patch
+
+cd %SRC%

MSVC/contrib/src/msgpack/msgpack-uwp.patch

@@ -0,0 +1,221 @@
+--- /dev/null
++++ b/msgpack_vc8.vcxproj
+@@ -0,0 +1,214 @@
++<?xml version="1.0" encoding="utf-8"?>
++<Project DefaultTargets="Build" ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
++  <ItemGroup Label="ProjectConfigurations">
++    <ProjectConfiguration Include="Debug|Win32">
++      <Configuration>Debug</Configuration>
++      <Platform>Win32</Platform>
++    </ProjectConfiguration>
++    <ProjectConfiguration Include="Debug|x64">
++      <Configuration>Debug</Configuration>
++      <Platform>x64</Platform>
++    </ProjectConfiguration>
++    <ProjectConfiguration Include="Release|Win32">
++      <Configuration>Release</Configuration>
++      <Platform>Win32</Platform>
++    </ProjectConfiguration>
++    <ProjectConfiguration Include="Release|x64">
++      <Configuration>Release</Configuration>
++      <Platform>x64</Platform>
++    </ProjectConfiguration>
++  </ItemGroup>
++  <PropertyGroup Label="Globals">
++    <ProjectName>MessagePack</ProjectName>
++    <ProjectGuid>{122A2EA4-B283-4241-9655-786DE78283B2}</ProjectGuid>
++    <RootNamespace>MessagePack</RootNamespace>
++    <Keyword>Win32Proj</Keyword>
++    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
++  </PropertyGroup>
++  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
++  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
++    <ConfigurationType>StaticLibrary</ConfigurationType>
++    <PlatformToolset>v140</PlatformToolset>
++    <CharacterSet>Unicode</CharacterSet>
++    <WholeProgramOptimization>false</WholeProgramOptimization>
++  </PropertyGroup>
++  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
++    <ConfigurationType>StaticLibrary</ConfigurationType>
++    <PlatformToolset>v140</PlatformToolset>
++    <CharacterSet>Unicode</CharacterSet>
++    <WholeProgramOptimization>false</WholeProgramOptimization>
++  </PropertyGroup>
++  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
++    <ConfigurationType>StaticLibrary</ConfigurationType>
++    <PlatformToolset>v140</PlatformToolset>
++    <CharacterSet>Unicode</CharacterSet>
++  </PropertyGroup>
++  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
++    <ConfigurationType>StaticLibrary</ConfigurationType>
++    <PlatformToolset>v140</PlatformToolset>
++    <CharacterSet>Unicode</CharacterSet>
++  </PropertyGroup>
++  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
++  <ImportGroup Label="ExtensionSettings">
++  </ImportGroup>
++  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
++    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
++  </ImportGroup>
++  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
++    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
++  </ImportGroup>
++  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
++    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
++  </ImportGroup>
++  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
++    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
++  </ImportGroup>
++  <PropertyGroup Label="UserMacros" />
++  <PropertyGroup>
++    <_ProjectFileVersion>14.0.25123.0</_ProjectFileVersion>
++  </PropertyGroup>
++  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
++    <OutDir>$(ProjectDir)..\</OutDir>
++    <IntDir>$(Configuration)\</IntDir>
++    <TargetName>msgpackd</TargetName>
++  </PropertyGroup>
++  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
++    <TargetName>msgpackd</TargetName>
++    <OutDir>$(ProjectDir)..\</OutDir>
++    <IntDir>$(Configuration)\</IntDir>
++  </PropertyGroup>
++  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
++    <OutDir>$(ProjectDir)..\</OutDir>
++    <IntDir>$(Configuration)\</IntDir>
++    <TargetName>msgpack</TargetName>
++  </PropertyGroup>
++  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
++    <TargetName>msgpack</TargetName>
++    <OutDir>$(ProjectDir)..\</OutDir>
++    <IntDir>$(Configuration)\</IntDir>
++  </PropertyGroup>
++  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
++    <ClCompile>
++      <Optimization>Disabled</Optimization>
++      <AdditionalIncludeDirectories>.;include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
++      <PreprocessorDefinitions>WIN32_NATIVE;WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
++      <MinimalRebuild>true</MinimalRebuild>
++      <BasicRuntimeChecks>StackFrameRuntimeCheck</BasicRuntimeChecks>
++      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
++      <PrecompiledHeader />
++      <WarningLevel>Level3</WarningLevel>
++      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
++    </ClCompile>
++    <Lib>
++      <OutputFile>$(OutDir)\lib\x86\$(TargetName)$(TargetExt)</OutputFile>
++    </Lib>
++    <PostBuildEvent>
++      <Command>mkdir $(OutDir)\include
++
++mkdir $(OutDir)\include\msgpack
++
++copy include\*.h $(OutDir)\include\
++
++copy include\*.hpp $(OutDir)\include\
++xcopy /S /Y include\msgpack\*.h $(OutDir)\include\msgpack
++xcopy /S /Y include\msgpack\*.hpp $(OutDir)\include\msgpack
++</Command>
++    </PostBuildEvent>
++  </ItemDefinitionGroup>
++  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
++    <ClCompile>
++      <Optimization>Disabled</Optimization>
++      <AdditionalIncludeDirectories>.;include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
++      <PreprocessorDefinitions>WIN32_NATIVE;WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
++      <BasicRuntimeChecks>StackFrameRuntimeCheck</BasicRuntimeChecks>
++      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
++      <PrecompiledHeader>
++      </PrecompiledHeader>
++      <WarningLevel>Level3</WarningLevel>
++      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
++    </ClCompile>
++    <Lib>
++      <OutputFile>$(OutDir)\lib\x64\$(TargetName)$(TargetExt)</OutputFile>
++    </Lib>
++    <PostBuildEvent>
++      <Command>mkdir $(OutDir)\include
++
++mkdir $(OutDir)\include\msgpack
++
++copy include\*.h $(OutDir)\include\
++
++copy include\*.hpp $(OutDir)\include\
++xcopy /S /Y include\msgpack\*.h $(OutDir)\include\msgpack
++xcopy /S /Y include\msgpack\*.hpp $(OutDir)\include\msgpack
++</Command>
++    </PostBuildEvent>
++  </ItemDefinitionGroup>
++  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
++    <ClCompile>
++      <AdditionalIncludeDirectories>.;include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
++      <PreprocessorDefinitions>WIN32_NATIVE;WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
++      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
++      <PrecompiledHeader />
++      <WarningLevel>Level3</WarningLevel>
++      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
++      <ProgramDataBaseFileName>$(OutDir)\lib\x86\$(TargetName).pdb</ProgramDataBaseFileName>
++    </ClCompile>
++    <Lib>
++      <OutputFile>$(OutDir)\lib\x86\$(TargetName)$(TargetExt)</OutputFile>
++      <LinkTimeCodeGeneration />
++    </Lib>
++    <PostBuildEvent>
++      <Command>mkdir $(OutDir)\include
++
++mkdir $(OutDir)\include\msgpack
++
++copy include\*.h $(OutDir)\include\
++
++copy include\*.hpp $(OutDir)\include\
++xcopy /S /Y include\msgpack\*.h $(OutDir)\include\msgpack
++xcopy /S /Y include\msgpack\*.hpp $(OutDir)\include\msgpack
++</Command>
++    </PostBuildEvent>
++  </ItemDefinitionGroup>
++  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
++    <ClCompile>
++      <AdditionalIncludeDirectories>.;include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
++      <PreprocessorDefinitions>MSGPACK_USE_CPP03;WIN32_NATIVE;WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
++      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
++      <PrecompiledHeader>
++      </PrecompiledHeader>
++      <WarningLevel>Level3</WarningLevel>
++      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
++      <ProgramDataBaseFileName>$(OutDir)\lib\x64\$(TargetName).pdb</ProgramDataBaseFileName>
++    </ClCompile>
++    <Lib>
++      <OutputFile>$(OutDir)\lib\x64\$(TargetName)$(TargetExt)</OutputFile>
++      <LinkTimeCodeGeneration />
++    </Lib>
++    <PostBuildEvent>
++      <Command>mkdir $(OutDir)\include
++
++mkdir $(OutDir)\include\msgpack
++
++copy include\*.h $(OutDir)\include\
++
++copy include\*.hpp $(OutDir)\include\
++xcopy /S /Y include\msgpack\*.h $(OutDir)\include\msgpack
++xcopy /S /Y include\msgpack\*.hpp $(OutDir)\include\msgpack
++</Command>
++    </PostBuildEvent>
++  </ItemDefinitionGroup>
++  <ItemGroup>
++    <ClCompile Include="src\objectc.c" />
++    <ClCompile Include="src\unpack.c" />
++    <ClCompile Include="src\version.c" />
++    <ClCompile Include="src\vrefbuffer.c" />
++    <ClCompile Include="src\zone.c" />
++  </ItemGroup>
++  <ItemGroup>
++    <ClInclude Include="include\msgpack.hpp" />
++  </ItemGroup>
++  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
++  <ImportGroup Label="ExtensionTargets">
++  </ImportGroup>
++</Project>
+\ No newline at end of file
+-- 
+2.8.1.windows.1
+

MSVC/contrib/src/nettle/fetch_and_patch.bat

@@ -0,0 +1,22 @@
+set BUILD=%SRC%..\build
+
+set NETTLE_VERSION=4e0b2723b76d4163fa37b2b456d41534154ec97c
+set NETTLE_URL=https://github.com/ShiftMediaProject/nettle/archive/%NETTLE_VERSION%.tar.gz
+
+mkdir %BUILD%
+
+if %USE_CACHE%==1 (
+    copy %CACHE_DIR%\%NETTLE_VERSION%.tar.gz %cd%
+) else (
+    wget %NETTLE_URL%
+)
+
+7z -y x %NETTLE_VERSION%.tar.gz && 7z -y x %NETTLE_VERSION%.tar -o%BUILD%
+del %NETTLE_VERSION%.tar && del %NETTLE_VERSION%.tar.gz && del %BUILD%\pax_global_header
+rename %BUILD%\nettle-%NETTLE_VERSION% nettle
+
+cd %BUILD%\nettle
+
+git apply --reject --whitespace=fix %SRC%\nettle\nettle-uwp.patch
+
+cd %SRC%

MSVC/contrib/src/nettle/nettle-uwp.patch

@@ -0,0 +1,228 @@
+--- a/SMP/libhogweed.vcxproj
++++ b/SMP/libhogweed.vcxproj
+@@ -242,6 +242,7 @@
+   <PropertyGroup Label="Globals">
+     <ProjectGuid>{200F3D3C-8B84-46D8-953A-6C0EBD283B5C}</ProjectGuid>
+     <RootNamespace>libhogweed</RootNamespace>
++    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+   </PropertyGroup>
+   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+@@ -405,91 +406,91 @@
+   </ImportGroup>
+   <PropertyGroup Label="UserMacros" />
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libhogweedd</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libhogweedd</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLL|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>hogweedd</TargetName>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLLStaticDeps|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>hogweedd</TargetName>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLL|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>hogweedd</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLLStaticDeps|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>hogweedd</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libhogweed</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseLTO|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libhogweed</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libhogweed</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseLTO|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libhogweed</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLL|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>hogweed</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLLStaticDeps|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>hogweed</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLL|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>hogweed</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLLStaticDeps|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>hogweed</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+--- a/SMP/libnettle.vcxproj
++++ b/SMP/libnettle.vcxproj
+@@ -278,6 +278,7 @@
+   <PropertyGroup Label="Globals">
+     <ProjectGuid>{070FEF2B-0C3F-4F33-9D3C-53C7330BF518}</ProjectGuid>
+     <RootNamespace>libnettle</RootNamespace>
++    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+   </PropertyGroup>
+   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+@@ -397,65 +398,65 @@
+   </ImportGroup>
+   <PropertyGroup Label="UserMacros" />
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libnettled</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libnettled</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLL|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>nettled</TargetName>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='DebugDLL|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>nettled</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <LinkIncremental>false</LinkIncremental>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libnettle</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseLTO|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libnettle</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libnettle</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseLTO|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libnettle</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLL|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>nettle</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLL|x64'">
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>nettle</TargetName>
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+-- 
+2.8.1.windows.1

MSVC/contrib/src/zlib/fetch_and_patch.bat

@@ -0,0 +1,22 @@
+set BUILD=%SRC%..\build
+
+set ZLIB_VERSION=3a062eb61d0c3d4aa30851cd1a6597b977b56597
+set ZLIB_URL=https://github.com/ShiftMediaProject/zlib/archive/%ZLIB_VERSION%.tar.gz
+
+mkdir %BUILD%
+
+if %USE_CACHE%==1 (
+    copy %CACHE_DIR%\%ZLIB_VERSION%.tar.gz %cd%
+) else (
+    wget %ZLIB_URL%
+)
+
+7z -y x %ZLIB_VERSION%.tar.gz && 7z -y x %ZLIB_VERSION%.tar -o%BUILD%
+del %ZLIB_VERSION%.tar && del %ZLIB_VERSION%.tar.gz && del %BUILD%\pax_global_header
+rename %BUILD%\zlib-%ZLIB_VERSION% zlib
+
+cd %BUILD%\zlib
+
+git apply --reject --whitespace=fix %SRC%\zlib\zlib-uwp.patch
+
+cd %SRC%

MSVC/contrib/src/zlib/zlib-uwp.patch

@@ -0,0 +1,97 @@
+--- a/SMP/libzlib.vcxproj
++++ b/SMP/libzlib.vcxproj
+@@ -45,6 +45,7 @@
+   <PropertyGroup Label="Globals">
+     <ProjectGuid>{CA9A4A38-CC63-4BDB-8CFB-E058965DDA32}</ProjectGuid>
+     <RootNamespace>libzlib</RootNamespace>
++    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+   </PropertyGroup>
+   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+@@ -165,63 +166,63 @@
+   </ImportGroup>
+   <PropertyGroup Label="UserMacros" />
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libzlibd</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libzlib</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseLTO|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>libzlib</TargetName>
+     <CustomBuildAfterTargets>Clean</CustomBuildAfterTargets>
+   </PropertyGroup>
+   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseDLL|Win32'">
+-    <OutDir>$(ProjectDir)..\..\..\msvc\</OutDir>
+-    <IntDir>$(SolutionDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
++    <OutDir>$(ProjectDir)..\..\</OutDir>
++    <IntDir>$(ProjectDir)obj\$(Configuration)\$(Platform)\$(ProjectName)\</IntDir>
+     <TargetName>zlib</TargetName>
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MSVC/dhtnode.vcxproj

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+    <PlatformToolset>v140</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v140</PlatformToolset>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v140</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>MultiByte</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <IntDir>$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <IntDir>$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <IntDir>$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <IntDir>$(ProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <OutDir>$(ProjectDir)..\..\bin\x64</OutDir>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <SDLCheck>true</SDLCheck>
+      <AdditionalIncludeDirectories>..\..\include;..\..\msgpack-c\include;$(ProjectDir)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <DisableSpecificWarnings>4804;4267;4244;4800;4273;4101;</DisableSpecificWarnings>
+      <ProgramDataBaseFileName>$(IntDir)vc$(PlatformToolsetVersion).pdb</ProgramDataBaseFileName>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>crypt32.lib;blake.lib;argon.lib;libgnutls.lib;opendht.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(ProjectDir)..\..\lib\x64</AdditionalLibraryDirectories>
+      <AdditionalOptions>/ignore:4049 %(AdditionalOptions)</AdditionalOptions>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <SDLCheck>true</SDLCheck>
+      <AdditionalIncludeDirectories>..\..\include;..\..\msgpack-c\include;$(ProjectDir)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <DisableSpecificWarnings>4804;4267;4244;4800;4273;4101;</DisableSpecificWarnings>
+      <ProgramDataBaseFileName>$(IntDir)vc$(PlatformToolsetVersion).pdb</ProgramDataBaseFileName>
+    </ClCompile>
+    <Link>
+      <AdditionalDependencies>crypt32.lib;blake.lib;argon.lib;libgnutls.lib;opendht.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(ProjectDir)..\..\lib\x64</AdditionalLibraryDirectories>
+      <AdditionalOptions>/ignore:4049 %(AdditionalOptions)</AdditionalOptions>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <AdditionalIncludeDirectories>..\..\include;..\..\msgpack-c\include;$(ProjectDir)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <DisableSpecificWarnings>4804;4267;4244;4800;4273;4101;</DisableSpecificWarnings>
+      <ProgramDataBaseFileName>$(IntDir)vc$(PlatformToolsetVersion).pdb</ProgramDataBaseFileName>
+    </ClCompile>
+    <Link>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>crypt32.lib;blake.lib;argon.lib;libgnutls.lib;opendht.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(ProjectDir)..\..\lib\x64</AdditionalLibraryDirectories>
+      <AdditionalOptions>/ignore:4049 %(AdditionalOptions)</AdditionalOptions>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <AdditionalIncludeDirectories>..\..\include;$(ProjectDir)contrib\build\include;$(ProjectDir)contrib\build\msgpack-c\include;$(ProjectDir)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <DisableSpecificWarnings>4804;4267;4244;4800;4273;4101;</DisableSpecificWarnings>
+      <ProgramDataBaseFileName>$(IntDir)vc$(PlatformToolsetVersion).pdb</ProgramDataBaseFileName>
+    </ClCompile>
+    <Link>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalDependencies>crypt32.lib;Argon2Ref.lib;libgnutls.lib;opendht.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(ProjectDir)contrib\build\lib\x64;$(ProjectDir)..\..\lib\x64;$(ProjectDir)vs2015\build</AdditionalLibraryDirectories>
+      <AdditionalOptions>/ignore:4049 %(AdditionalOptions)</AdditionalOptions>
+      <OutputFile>$(OutDir)$(TargetName)$(TargetExt)</OutputFile>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\tools\dhtscanner.cpp" />
+    <ClCompile Include="wingetopt.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\tools\tools_common.h" />
+    <ClInclude Include="wingetopt.h" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

MSVC/fetch_deps.bat

@@ -0,0 +1,2 @@
+@echo on
+call contrib\src\fetch_and_patch.bat

MSVC/opendht.vcxproj

@@ -19,12 +19,17 @@
     </ProjectConfiguration>
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="wingetopt.c" />
+    <ClCompile Include="..\src\base64.cpp" />
     <ClCompile Include="..\src\callbacks.cpp" />
     <ClCompile Include="..\src\crypto.cpp" />
     <ClCompile Include="..\src\default_types.cpp" />
     <ClCompile Include="..\src\dht.cpp" />
     <ClCompile Include="..\src\dhtrunner.cpp" />
+    <ClCompile Include="..\src\dht_proxy_server.cpp" />
+    <ClCompile Include="..\src\indexation\pht.cpp" />
     <ClCompile Include="..\src\infohash.cpp" />
+    <ClCompile Include="..\src\log.cpp" />
     <ClCompile Include="..\src\network_engine.cpp" />
     <ClCompile Include="..\src\node.cpp" />
     <ClCompile Include="..\src\node_cache.cpp" />
@@ -34,24 +39,38 @@
     <ClCompile Include="..\src\value.cpp" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="unistd.h" />
+    <ClInclude Include="wingetopt.h" />
     <ClInclude Include="..\include\opendht.h" />
     <ClInclude Include="..\include\opendht\callbacks.h" />
     <ClInclude Include="..\include\opendht\crypto.h" />
+    <ClInclude Include="..\include\opendht\def.h" />
     <ClInclude Include="..\include\opendht\default_types.h" />
     <ClInclude Include="..\include\opendht\dht.h" />
     <ClInclude Include="..\include\opendht\dhtrunner.h" />
+    <ClInclude Include="..\include\opendht\dht_proxy_server.h" />
+    <ClInclude Include="..\include\opendht\indexation\pht.h" />
     <ClInclude Include="..\include\opendht\infohash.h" />
     <ClInclude Include="..\include\opendht\log.h" />
+    <ClInclude Include="..\include\opendht\log_enable.h" />
     <ClInclude Include="..\include\opendht\network_engine.h" />
     <ClInclude Include="..\include\opendht\node.h" />
     <ClInclude Include="..\include\opendht\node_cache.h" />
-    <ClInclude Include="..\include\opendht\request.h" />
+    <ClInclude Include="..\include\opendht\rate_limiter.h" />
     <ClInclude Include="..\include\opendht\rng.h" />
     <ClInclude Include="..\include\opendht\routing_table.h" />
     <ClInclude Include="..\include\opendht\scheduler.h" />
     <ClInclude Include="..\include\opendht\securedht.h" />
+    <ClInclude Include="..\include\opendht\sockaddr.h" />
     <ClInclude Include="..\include\opendht\utils.h" />
     <ClInclude Include="..\include\opendht\value.h" />
+    <ClInclude Include="..\src\base64.h" />
+    <ClInclude Include="..\src\listener.h" />
+    <ClInclude Include="..\src\net.h" />
+    <ClInclude Include="..\src\parsed_message.h" />
+    <ClInclude Include="..\src\request.h" />
+    <ClInclude Include="..\src\search.h" />
+    <ClInclude Include="..\src\storage.h" />
   </ItemGroup>
   <PropertyGroup Label="Globals">
     <ProjectGuid>{711397CE-E5D5-467D-9457-8716C047E50C}</ProjectGuid>
@@ -127,7 +146,7 @@
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>..\..\include;..\include;..\include\opendht;..\..\msgpack-c\include;</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32_LEAN_AND_MEAN;_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DisableSpecificWarnings>4804;4800;4101;4267;4244;4503;</DisableSpecificWarnings>
       <AdditionalOptions>-D_SCL_SECURE_NO_WARNINGS %(AdditionalOptions)</AdditionalOptions>
       <SuppressStartupBanner>false</SuppressStartupBanner>
@@ -135,6 +154,8 @@
     <PostBuildEvent>
       <Command>mkdir $(OutDir)\include
 mkdir $(OutDir)\include\opendht
+mkdir $(OutDir)\include\opendht\indexation
+copy ..\include\opendht\indexation\*.h $(OutDir)\include\opendht\indexation
 copy ..\include\opendht\*.h $(OutDir)\include\opendht
 copy ..\include\opendht.h $(OutDir)\include\</Command>
     </PostBuildEvent>
@@ -148,13 +169,15 @@ copy ..\include\opendht.h $(OutDir)\include\</Command>
       <Optimization>Disabled</Optimization>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>..\..\include;..\include;..\include\opendht;..\..\msgpack-c\include;</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32_LEAN_AND_MEAN;_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DisableSpecificWarnings>4804;4800;4101;4267;4244;4503;</DisableSpecificWarnings>
       <AdditionalOptions>-D_SCL_SECURE_NO_WARNINGS %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <PostBuildEvent>
       <Command>mkdir $(OutDir)\include
 mkdir $(OutDir)\include\opendht
+mkdir $(OutDir)\include\opendht\indexation
+copy ..\include\opendht\indexation\*.h $(OutDir)\include\opendht\indexation
 copy ..\include\opendht\*.h $(OutDir)\include\opendht
 copy ..\include\opendht.h $(OutDir)\include\</Command>
     </PostBuildEvent>
@@ -170,7 +193,7 @@ copy ..\include\opendht.h $(OutDir)\include\</Command>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>..\..\include;..\include;..\include\opendht;..\..\msgpack-c\include;</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32_LEAN_AND_MEAN;_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <DisableSpecificWarnings>4804;4800;4101;4267;4244;4503;</DisableSpecificWarnings>
       <AdditionalOptions>-D_SCL_SECURE_NO_WARNINGS %(AdditionalOptions)</AdditionalOptions>
       <ProgramDataBaseFileName>$(OutDir)\lib\x86\$(TargetName).pdb</ProgramDataBaseFileName>
@@ -182,6 +205,8 @@ copy ..\include\opendht.h $(OutDir)\include\</Command>
     <PostBuildEvent>
       <Command>mkdir $(OutDir)\include
 mkdir $(OutDir)\include\opendht
+mkdir $(OutDir)\include\opendht\indexation
+copy ..\include\opendht\indexation\*.h $(OutDir)\include\opendht\indexation
 copy ..\include\opendht\*.h $(OutDir)\include\opendht
 copy ..\include\opendht.h $(OutDir)\include\</Command>
     </PostBuildEvent>
@@ -197,9 +222,9 @@ copy ..\include\opendht.h $(OutDir)\include\</Command>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>..\..\include;..\include;..\include\opendht;..\..\msgpack-c\include;</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <DisableSpecificWarnings>4804;4800;4101;4267;4244;4503;</DisableSpecificWarnings>
+      <AdditionalIncludeDirectories>$(ProjectDir)contrib\build\include;$(ProjectDir)..\include;$(ProjectDir)..\include\opendht;$(ProjectDir)contrib\build\msgpack-c\include;$(ProjectDir)contrib\build\argon2\include;$(ProjectDir)..\..\include;$(ProjectDir)..\..\argon2\include</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32_LEAN_AND_MEAN;_MBCS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <DisableSpecificWarnings>4804;4800;4101;4267;4244;4503;4273;</DisableSpecificWarnings>
       <AdditionalOptions>-D_SCL_SECURE_NO_WARNINGS %(AdditionalOptions)</AdditionalOptions>
       <ProgramDataBaseFileName>$(OutDir)\lib\x64\$(TargetName).pdb</ProgramDataBaseFileName>
     </ClCompile>
@@ -210,12 +235,16 @@ copy ..\include\opendht.h $(OutDir)\include\</Command>
     <PostBuildEvent>
       <Command>mkdir $(OutDir)\include
 mkdir $(OutDir)\include\opendht
+mkdir $(OutDir)\include\opendht\indexation
+copy ..\include\opendht\indexation\*.h $(OutDir)\include\opendht\indexation
 copy ..\include\opendht\*.h $(OutDir)\include\opendht
 copy ..\include\opendht.h $(OutDir)\include\</Command>
     </PostBuildEvent>
     <Lib>
       <OutputFile>$(OutDir)\lib\x64\$(TargetName)$(TargetExt)</OutputFile>
       <LinkTimeCodeGeneration>false</LinkTimeCodeGeneration>
+      <AdditionalLibraryDirectories>
+      </AdditionalLibraryDirectories>
     </Lib>
   </ItemDefinitionGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

MSVC/opendht.vcxproj.filters

@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="..\src\callbacks.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\crypto.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\default_types.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\dht.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\dhtrunner.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\infohash.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\log.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\network_engine.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\node.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\node_cache.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\routing_table.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\securedht.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\utils.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\value.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\base64.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\dht_proxy_server.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="..\src\indexation\pht.cpp">
+      <Filter>Source Files\indexation</Filter>
+    </ClCompile>
+    <ClCompile Include="wingetopt.c" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\include\opendht\def.h" />
+    <ClInclude Include="..\include\opendht\sockaddr.h" />
+    <ClInclude Include="..\src\net.h" />
+    <ClInclude Include="..\src\parsed_message.h" />
+    <ClInclude Include="..\src\base64.h">
+      <Filter>Source Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\src\listener.h">
+      <Filter>Source Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\src\request.h">
+      <Filter>Source Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\src\search.h">
+      <Filter>Source Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\src\storage.h">
+      <Filter>Source Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\callbacks.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\crypto.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\default_types.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\dht.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\dht_proxy_server.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\dhtrunner.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\infohash.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\log.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\log_enable.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\network_engine.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\node.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\node_cache.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\rate_limiter.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\rng.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\routing_table.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\scheduler.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\securedht.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\utils.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\value.h">
+      <Filter>Header Files\opendht</Filter>
+    </ClInclude>
+    <ClInclude Include="..\include\opendht\indexation\pht.h">
+      <Filter>Header Files\opendht\indexation</Filter>
+    </ClInclude>
+    <ClInclude Include="unistd.h" />
+    <ClInclude Include="wingetopt.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{be73d179-6cf2-4c05-8d91-53c8499a7134}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{d1ab5bfe-3ab1-45ee-9324-b4b071887668}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Source Files\indexation">
+      <UniqueIdentifier>{939134d3-d5a2-4458-bca8-a10ea9042ea2}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\opendht">
+      <UniqueIdentifier>{0b46e2d0-4874-404c-bae3-fae8d49b85b8}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Header Files\opendht\indexation">
+      <UniqueIdentifier>{03bd5139-2ae5-41b0-a77b-944814e1b2b6}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>

MSVC/opendht_deps.sln

@@ -1,20 +1,21 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 14
-VisualStudioVersion = 14.0.25123.0
+VisualStudioVersion = 14.0.25420.1
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "opendht", "opendht.vcxproj", "{711397CE-E5D5-467D-9457-8716C047E50C}"
 	ProjectSection(ProjectDependencies) = postProject
 		{070FEF2B-0C3F-4F33-9D3C-53C7330BF518} = {070FEF2B-0C3F-4F33-9D3C-53C7330BF518}
 		{122A2EA4-B283-4241-9655-786DE78283B2} = {122A2EA4-B283-4241-9655-786DE78283B2}
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2} = {B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}
 		{6F610EE8-7F59-4191-AB88-F63843267C02} = {6F610EE8-7F59-4191-AB88-F63843267C02}
 	EndProjectSection
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "dependencies", "dependencies", "{71A1A9EC-1104-4335-A87E-AF8749FD5B34}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libgmp", "..\..\gmp\MSVC\libgmp.vcxproj", "{02B94302-23D6-43EF-8865-95CDE99D5DC2}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libgmp", "contrib\build\gmp\SMP\libgmp.vcxproj", "{02B94302-23D6-43EF-8865-95CDE99D5DC2}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libgnutls", "..\..\gnutls\MSVC\libgnutls.vcxproj", "{6F610EE8-7F59-4191-AB88-F63843267C02}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libgnutls", "contrib\build\gnutls\SMP\libgnutls.vcxproj", "{6F610EE8-7F59-4191-AB88-F63843267C02}"
 	ProjectSection(ProjectDependencies) = postProject
 		{02B94302-23D6-43EF-8865-95CDE99D5DC2} = {02B94302-23D6-43EF-8865-95CDE99D5DC2}
 		{070FEF2B-0C3F-4F33-9D3C-53C7330BF518} = {070FEF2B-0C3F-4F33-9D3C-53C7330BF518}
@@ -23,259 +24,191 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libgnutls", "..\..\gnutls\M
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 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libiconv", "..\..\libiconv\MSVC\libiconv.vcxproj", "{CB8BB76F-D3FF-434E-A85E-7FFC0893EC9B}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libiconv", "contrib\build\libiconv\SMP\libiconv.vcxproj", "{CB8BB76F-D3FF-434E-A85E-7FFC0893EC9B}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libhogweed", "..\..\nettle\MSVC\libhogweed.vcxproj", "{200F3D3C-8B84-46D8-953A-6C0EBD283B5C}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libhogweed", "contrib\build\nettle\SMP\libhogweed.vcxproj", "{200F3D3C-8B84-46D8-953A-6C0EBD283B5C}"
 	ProjectSection(ProjectDependencies) = postProject
 		{02B94302-23D6-43EF-8865-95CDE99D5DC2} = {02B94302-23D6-43EF-8865-95CDE99D5DC2}
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libnettle", "..\..\nettle\MSVC\libnettle.vcxproj", "{070FEF2B-0C3F-4F33-9D3C-53C7330BF518}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libnettle", "contrib\build\nettle\SMP\libnettle.vcxproj", "{070FEF2B-0C3F-4F33-9D3C-53C7330BF518}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libzlib", "..\..\zlib\MSVC\libzlib.vcxproj", "{CA9A4A38-CC63-4BDB-8CFB-E058965DDA32}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libzlib", "contrib\build\zlib\SMP\libzlib.vcxproj", "{CA9A4A38-CC63-4BDB-8CFB-E058965DDA32}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "MessagePack", "..\..\msgpack-c\msgpack_vc8.vcxproj", "{122A2EA4-B283-4241-9655-786DE78283B2}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "MessagePack", "contrib\build\msgpack-c\msgpack_vc8.vcxproj", "{122A2EA4-B283-4241-9655-786DE78283B2}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "tools", "tools", "{296E2989-CF09-43AC-BBD2-BCF1A4B56D07}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dhtnode", "dhtnode.vcxproj", "{BF92AECF-AA1D-4B05-9D00-0247E92A24B5}"
+	ProjectSection(ProjectDependencies) = postProject
+		{711397CE-E5D5-467D-9457-8716C047E50C} = {711397CE-E5D5-467D-9457-8716C047E50C}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dhtscanner", "dhtscanner.vcxproj", "{78443BCD-4689-4007-A246-F8F34B27F561}"
+	ProjectSection(ProjectDependencies) = postProject
+		{711397CE-E5D5-467D-9457-8716C047E50C} = {711397CE-E5D5-467D-9457-8716C047E50C}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dhtchat", "dhtchat.vcxproj", "{8BE7F14D-B227-4D54-9105-7E5473F2D0BA}"
+	ProjectSection(ProjectDependencies) = postProject
+		{711397CE-E5D5-467D-9457-8716C047E50C} = {711397CE-E5D5-467D-9457-8716C047E50C}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Argon2Ref", "contrib\build\argon2\vs2015\Argon2Ref\Argon2Ref.vcxproj", "{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}"
 EndProject
 Global
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-		DebugDLLStaticDeps|x86 = DebugDLLStaticDeps|x86
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-		ReleaseDLLStaticDeps|x86 = ReleaseDLLStaticDeps|x86
-		ReleaseLTO|x64 = ReleaseLTO|x64
-		ReleaseLTO|x86 = ReleaseLTO|x86
+		ReleaseStatic|x64 = ReleaseStatic|x64
+		ReleaseStatic|x86 = ReleaseStatic|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
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-		{711397CE-E5D5-467D-9457-8716C047E50C}.ReleaseLTO|x86.Build.0 = Release|Win32
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 		{02B94302-23D6-43EF-8865-95CDE99D5DC2}.Debug|x64.ActiveCfg = Debug|x64
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+		{8BE7F14D-B227-4D54-9105-7E5473F2D0BA}.ReleaseStatic|x64.Build.0 = Release|x64
+		{8BE7F14D-B227-4D54-9105-7E5473F2D0BA}.ReleaseStatic|x86.ActiveCfg = Release|Win32
+		{8BE7F14D-B227-4D54-9105-7E5473F2D0BA}.ReleaseStatic|x86.Build.0 = Release|Win32
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}.Debug|x64.ActiveCfg = Debug|x64
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}.Debug|x64.Build.0 = Debug|x64
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}.Debug|x86.ActiveCfg = Debug|Win32
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}.Debug|x86.Build.0 = Debug|Win32
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}.Release|x64.ActiveCfg = Release|x64
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}.Release|x64.Build.0 = Release|x64
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}.Release|x86.ActiveCfg = Release|Win32
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}.Release|x86.Build.0 = Release|Win32
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}.ReleaseStatic|x64.ActiveCfg = ReleaseStatic|x64
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}.ReleaseStatic|x64.Build.0 = ReleaseStatic|x64
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}.ReleaseStatic|x86.ActiveCfg = ReleaseStatic|Win32
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2}.ReleaseStatic|x86.Build.0 = ReleaseStatic|Win32
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -288,5 +221,9 @@ Global
 		{070FEF2B-0C3F-4F33-9D3C-53C7330BF518} = {71A1A9EC-1104-4335-A87E-AF8749FD5B34}
 		{CA9A4A38-CC63-4BDB-8CFB-E058965DDA32} = {71A1A9EC-1104-4335-A87E-AF8749FD5B34}
 		{122A2EA4-B283-4241-9655-786DE78283B2} = {71A1A9EC-1104-4335-A87E-AF8749FD5B34}
+		{BF92AECF-AA1D-4B05-9D00-0247E92A24B5} = {296E2989-CF09-43AC-BBD2-BCF1A4B56D07}
+		{78443BCD-4689-4007-A246-F8F34B27F561} = {296E2989-CF09-43AC-BBD2-BCF1A4B56D07}
+		{8BE7F14D-B227-4D54-9105-7E5473F2D0BA} = {296E2989-CF09-43AC-BBD2-BCF1A4B56D07}
+		{B9CAC9CE-9F0D-4F52-8D67-FDBBAFCD0DE2} = {71A1A9EC-1104-4335-A87E-AF8749FD5B34}
 	EndGlobalSection
 EndGlobal

MSVC/project_get_dependencies.bat

@@ -1,71 +0,0 @@
-@ECHO OFF
-SETLOCAL EnableDelayedExpansion
-
-SET UPSTREAMURL=https://github.com/atraczyk
-SET DEPENDENCIES=( ^
-gmp, ^
-gnutls, ^
-nettle, ^
-msgpack-c ^
-)
-
-SET PASSDEPENDENCIES=%~1
-
-git status >NUL 2>&1
-IF %ERRORLEVEL% EQU 128 (
-    git init
-) ELSE (
-    IF %ERRORLEVEL% EQU 9009 (
-        ECHO git not installed.
-        EXIT /B 1
-    )
-)
-
-SET CURRDIR=%~dp1
-
-cd ..\..
-FOR %%I IN %DEPENDENCIES% DO (
-    ECHO !PASSDEPENDENCIES! | FINDSTR /C:"%%I" >NUL 2>&1 || (
-        CALL :cloneOrUpdateRepo "%%I" )
-)
-cd %CURRDIR% >NUL
-GOTO exit
-
-:cloneOrUpdateRepo
-SET REPONAME=%~1
-IF NOT EXIST "%REPONAME%" (
-    ECHO %REPONAME%: Existing folder not found. Cloning repository...
-    SET REPOURL=%UPSTREAMURL%/%REPONAME%.git
-    git clone !REPOURL! --quiet
-    cd %REPONAME%
-    git config --local core.autocrlf false
-    git rm --cached -r . --quiet
-    git reset --hard --quiet
-    cd ..\
-)
-
-SET PASSDEPENDENCIES=%PASSDEPENDENCIES% %REPONAME%
-
-IF EXIST "%REPONAME%\MSVC\project_get_dependencies.bat" (
-    ECHO %REPONAME%: Found additional dependencies...
-    ECHO.
-    cd %REPONAME%\MSVC
-    project_get_dependencies.bat "!PASSDEPENDENCIES!" || GOTO exitOnError
-    cd ..\..
-)
-ECHO.
-EXIT /B %ERRORLEVEL%
-
-:exitOnError
-cd %CURRDIR%
-
-:exit
-(
-    ENDLOCAL
-    SET PASSDEPENDENCIES=%PASSDEPENDENCIES%
-)
-    
-ECHO %CMDCMDLINE% | FINDSTR /L %COMSPEC% >NUL 2>&1
-IF %ERRORLEVEL% == 0 IF "%~1"=="" PAUSE
-
-EXIT /B 0

MSVC/unistd.h

@@ -0,0 +1,53 @@
+/*
+ *  Copyright (C) 2016-2019 Savoir-faire Linux Inc.
+ *
+ *  Author: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ */
+
+#pragma once
+
+#ifndef __STRICT_ANSI__
+
+#include <stdlib.h>
+#include <process.h>
+#include <direct.h>
+#include <fcntl.h>
+
+#define R_OK    4
+#define W_OK    2
+#define F_OK    0
+
+#ifndef STDIN_FILENO
+#define STDIN_FILENO 0
+#endif
+
+#ifndef STDOUT_FILENO
+#define STDOUT_FILENO 1
+#endif
+
+#ifndef STDERR_FILENO
+#define STDERR_FILENO 2
+#endif
+
+#define srandom srand
+#define random rand
+
+#define inline __inline
+typedef int mode_t;
+#include <BaseTsd.h>
+
+#endif

MSVC/wingetopt.c

@@ -0,0 +1,971 @@
+/* Getopt for Microsoft C
+This code is a modification of the Free Software Foundation, Inc.
+Getopt library for parsing command line argument the purpose was
+to provide a Microsoft Visual C friendly derivative. This code
+provides functionality for both Unicode and Multibyte builds.
+Date: 02/03/2011 - Ludvik Jerabek - Initial Release
+Version: 1.0
+Comment: Supports getopt, getopt_long, and getopt_long_only
+and POSIXLY_CORRECT environment flag
+License: LGPL
+Revisions:
+02/03/2011 - Ludvik Jerabek - Initial Release
+02/20/2011 - Ludvik Jerabek - Fixed compiler warnings at Level 4
+07/05/2011 - Ludvik Jerabek - Added no_argument, required_argument, optional_argument defs
+08/03/2011 - Ludvik Jerabek - Fixed non-argument runtime bug which caused runtime exception
+08/09/2011 - Ludvik Jerabek - Added code to export functions for DLL and LIB
+02/15/2012 - Ludvik Jerabek - Fixed _GETOPT_THROW definition missing in implementation file
+08/01/2012 - Ludvik Jerabek - Created separate functions for char and wchar_t characters so single dll can do both unicode and ansi
+10/15/2012 - Ludvik Jerabek - Modified to match latest GNU features
+06/19/2015 - Ludvik Jerabek - Fixed maximum option limitation caused by option_a (255) and option_w (65535) structure val variable
+**DISCLAIMER**
+THIS MATERIAL IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
+EITHER EXPRESS OR IMPLIED, INCLUDING, BUT Not LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+PURPOSE, OR NON-INFRINGEMENT. SOME JURISDICTIONS DO NOT ALLOW THE
+EXCLUSION OF IMPLIED WARRANTIES, SO THE ABOVE EXCLUSION MAY NOT
+APPLY TO YOU. IN NO EVENT WILL I BE LIABLE TO ANY PARTY FOR ANY
+DIRECT, INDIRECT, SPECIAL OR OTHER CONSEQUENTIAL DAMAGES FOR ANY
+USE OF THIS MATERIAL INCLUDING, WITHOUT LIMITATION, ANY LOST
+PROFITS, BUSINESS INTERRUPTION, LOSS OF PROGRAMS OR OTHER DATA ON
+YOUR INFORMATION HANDLING SYSTEM OR OTHERWISE, EVEN If WE ARE
+EXPRESSLY ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+*/
+#ifndef _CRT_SECURE_NO_WARNINGS
+# define _CRT_SECURE_NO_WARNINGS
+#endif
+#include <stdlib.h>
+#include <stdio.h>
+#include <malloc.h>
+#include "wingetopt.h"
+
+#ifdef __cplusplus
+    #define _GETOPT_THROW throw()
+#else
+    #define _GETOPT_THROW
+#endif
+
+int optind = 1;
+int opterr = 1;
+int optopt = '?';
+enum ENUM_ORDERING { REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER };
+
+//
+//
+//		Ansi structures and functions follow
+//
+//
+
+static struct _getopt_data_a
+{
+    int optind;
+    int opterr;
+    int optopt;
+    char *optarg;
+    int __initialized;
+    char *__nextchar;
+    enum ENUM_ORDERING __ordering;
+    int __posixly_correct;
+    int __first_nonopt;
+    int __last_nonopt;
+} getopt_data_a;
+char *optarg_a;
+
+static void exchange_a(char **argv, struct _getopt_data_a *d)
+{
+    int bottom = d->__first_nonopt;
+    int middle = d->__last_nonopt;
+    int top = d->optind;
+    char *tem;
+    while (top > middle && middle > bottom)
+    {
+        if (top - middle > middle - bottom)
+        {
+            int len = middle - bottom;
+            register int i;
+            for (i = 0; i < len; i++)
+            {
+                tem = argv[bottom + i];
+                argv[bottom + i] = argv[top - (middle - bottom) + i];
+                argv[top - (middle - bottom) + i] = tem;
+            }
+            top -= len;
+        }
+        else
+        {
+            int len = top - middle;
+            register int i;
+            for (i = 0; i < len; i++)
+            {
+                tem = argv[bottom + i];
+                argv[bottom + i] = argv[middle + i];
+                argv[middle + i] = tem;
+            }
+            bottom += len;
+        }
+    }
+    d->__first_nonopt += (d->optind - d->__last_nonopt);
+    d->__last_nonopt = d->optind;
+}
+static const char *_getopt_initialize_a (const char *optstring, struct _getopt_data_a *d, int posixly_correct)
+{
+    d->__first_nonopt = d->__last_nonopt = d->optind;
+    d->__nextchar = NULL;
+    d->__posixly_correct = posixly_correct | !!getenv("POSIXLY_CORRECT");
+    if (optstring[0] == '-')
+    {
+        d->__ordering = RETURN_IN_ORDER;
+        ++optstring;
+    }
+    else if (optstring[0] == '+')
+    {
+        d->__ordering = REQUIRE_ORDER;
+        ++optstring;
+    }
+    else if (d->__posixly_correct)
+        d->__ordering = REQUIRE_ORDER;
+    else
+        d->__ordering = PERMUTE;
+    return optstring;
+}
+int _getopt_internal_r_a (int argc, char *const *argv, const char *optstring, const struct option_a *longopts, int *longind, int long_only, struct _getopt_data_a *d, int posixly_correct)
+{
+    int print_errors = d->opterr;
+    if (argc < 1)
+        return -1;
+    d->optarg = NULL;
+    if (d->optind == 0 || !d->__initialized)
+    {
+        if (d->optind == 0)
+            d->optind = 1;
+        optstring = _getopt_initialize_a (optstring, d, posixly_correct);
+        d->__initialized = 1;
+    }
+    else if (optstring[0] == '-' || optstring[0] == '+')
+        optstring++;
+    if (optstring[0] == ':')
+        print_errors = 0;
+    if (d->__nextchar == NULL || *d->__nextchar == '\0')
+    {
+        if (d->__last_nonopt > d->optind)
+            d->__last_nonopt = d->optind;
+        if (d->__first_nonopt > d->optind)
+            d->__first_nonopt = d->optind;
+        if (d->__ordering == PERMUTE)
+        {
+            if (d->__first_nonopt != d->__last_nonopt && d->__last_nonopt != d->optind)
+                exchange_a ((char **) argv, d);
+            else if (d->__last_nonopt != d->optind)
+                d->__first_nonopt = d->optind;
+            while (d->optind < argc && (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0'))
+                d->optind++;
+            d->__last_nonopt = d->optind;
+        }
+        if (d->optind != argc && !strcmp(argv[d->optind], "--"))
+        {
+            d->optind++;
+            if (d->__first_nonopt != d->__last_nonopt && d->__last_nonopt != d->optind)
+                exchange_a((char **) argv, d);
+            else if (d->__first_nonopt == d->__last_nonopt)
+                d->__first_nonopt = d->optind;
+            d->__last_nonopt = argc;
+            d->optind = argc;
+        }
+        if (d->optind == argc)
+        {
+            if (d->__first_nonopt != d->__last_nonopt)
+                d->optind = d->__first_nonopt;
+            return -1;
+        }
+        if ((argv[d->optind][0] != '-' || argv[d->optind][1] == '\0'))
+        {
+            if (d->__ordering == REQUIRE_ORDER)
+                return -1;
+            d->optarg = argv[d->optind++];
+            return 1;
+        }
+        d->__nextchar = (argv[d->optind] + 1 + (longopts != NULL && argv[d->optind][1] == '-'));
+    }
+    if (longopts != NULL && (argv[d->optind][1] == '-' || (long_only && (argv[d->optind][2] || !strchr(optstring, argv[d->optind][1])))))
+    {
+        char *nameend;
+        unsigned int namelen;
+        const struct option_a *p;
+        const struct option_a *pfound = NULL;
+        struct option_list
+        {
+            const struct option_a *p;
+            struct option_list *next;
+        } *ambig_list = NULL;
+        int exact = 0;
+        int indfound = -1;
+        int option_index;
+        for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++);
+        namelen = (unsigned int)(nameend - d->__nextchar);
+        for (p = longopts, option_index = 0; p->name; p++, option_index++)
+            if (!strncmp(p->name, d->__nextchar, namelen))
+            {
+                if (namelen == (unsigned int)strlen(p->name))
+                {
+                    pfound = p;
+                    indfound = option_index;
+                    exact = 1;
+                    break;
+                }
+                else if (pfound == NULL)
+                {
+                    pfound = p;
+                    indfound = option_index;
+                }
+                else if (long_only || pfound->has_arg != p->has_arg || pfound->flag != p->flag || pfound->val != p->val)
+                {
+                    struct option_list *newp = (struct option_list*)alloca(sizeof(*newp));
+                    newp->p = p;
+                    newp->next = ambig_list;
+                    ambig_list = newp;
+                }
+            }
+            if (ambig_list != NULL && !exact)
+            {
+                if (print_errors)
+                {
+                    struct option_list first;
+                    first.p = pfound;
+                    first.next = ambig_list;
+                    ambig_list = &first;
+                    fprintf (stderr, "%s: option '%s' is ambiguous; possibilities:", argv[0], argv[d->optind]);
+                    do
+                    {
+                        fprintf (stderr, " '--%s'", ambig_list->p->name);
+                        ambig_list = ambig_list->next;
+                    }
+                    while (ambig_list != NULL);
+                    fputc ('\n', stderr);
+                }
+                d->__nextchar += strlen(d->__nextchar);
+                d->optind++;
+                d->optopt = 0;
+                return '?';
+            }
+            if (pfound != NULL)
+            {
+                option_index = indfound;
+                d->optind++;
+                if (*nameend)
+                {
+                    if (pfound->has_arg)
+                        d->optarg = nameend + 1;
+                    else
+                    {
+                        if (print_errors)
+                        {
+                            if (argv[d->optind - 1][1] == '-')
+                            {
+                                fprintf(stderr, "%s: option '--%s' doesn't allow an argument\n",argv[0], pfound->name);
+                            }
+                            else
+                            {
+                                fprintf(stderr, "%s: option '%c%s' doesn't allow an argument\n",argv[0], argv[d->optind - 1][0],pfound->name);
+                            }
+                        }
+                        d->__nextchar += strlen(d->__nextchar);
+                        d->optopt = pfound->val;
+                        return '?';
+                    }
+                }
+                else if (pfound->has_arg == 1)
+                {
+                    if (d->optind < argc)
+                        d->optarg = argv[d->optind++];
+                    else
+                    {
+                        if (print_errors)
+                        {
+                            fprintf(stderr,"%s: option '--%s' requires an argument\n",argv[0], pfound->name);
+                        }
+                        d->__nextchar += strlen(d->__nextchar);
+                        d->optopt = pfound->val;
+                        return optstring[0] == ':' ? ':' : '?';
+                    }
+                }
+                d->__nextchar += strlen(d->__nextchar);
+                if (longind != NULL)
+                    *longind = option_index;
+                if (pfound->flag)
+                {
+                    *(pfound->flag) = pfound->val;
+                    return 0;
+                }
+                return pfound->val;
+            }
+            if (!long_only || argv[d->optind][1] == '-' || strchr(optstring, *d->__nextchar) == NULL)
+            {
+                if (print_errors)
+                {
+                    if (argv[d->optind][1] == '-')
+                    {
+                        fprintf(stderr, "%s: unrecognized option '--%s'\n",argv[0], d->__nextchar);
+                    }
+                    else
+                    {
+                        fprintf(stderr, "%s: unrecognized option '%c%s'\n",argv[0], argv[d->optind][0], d->__nextchar);
+                    }
+                }
+                d->__nextchar = (char *)"";
+                d->optind++;
+                d->optopt = 0;
+                return '?';
+            }
+    }
+    {
+        char c = *d->__nextchar++;
+        char *temp = (char*)strchr(optstring, c);
+        if (*d->__nextchar == '\0')
+            ++d->optind;
+        if (temp == NULL || c == ':' || c == ';')
+        {
+            if (print_errors)
+            {
+                fprintf(stderr, "%s: invalid option -- '%c'\n", argv[0], c);
+            }
+            d->optopt = c;
+            return '?';
+        }
+        if (temp[0] == 'W' && temp[1] == ';')
+        {
+            char *nameend;
+            const struct option_a *p;
+            const struct option_a *pfound = NULL;
+            int exact = 0;
+            int ambig = 0;
+            int indfound = 0;
+            int option_index;
+            if (longopts == NULL)
+                goto no_longs;
+            if (*d->__nextchar != '\0')
+            {
+                d->optarg = d->__nextchar;
+                d->optind++;
+            }
+            else if (d->optind == argc)
+            {
+                if (print_errors)
+                {
+                    fprintf(stderr,"%s: option requires an argument -- '%c'\n",argv[0], c);
+                }
+                d->optopt = c;
+                if (optstring[0] == ':')
+                    c = ':';
+                else
+                    c = '?';
+                return c;
+            }
+            else
+                d->optarg = argv[d->optind++];
+            for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '='; nameend++);
+            for (p = longopts, option_index = 0; p->name; p++, option_index++)
+                if (!strncmp(p->name, d->__nextchar, nameend - d->__nextchar))
+                {
+                    if ((unsigned int) (nameend - d->__nextchar) == strlen(p->name))
+                    {
+                        pfound = p;
+                        indfound = option_index;
+                        exact = 1;
+                        break;
+                    }
+                    else if (pfound == NULL)
+                    {
+                        pfound = p;
+                        indfound = option_index;
+                    }
+                    else if (long_only || pfound->has_arg != p->has_arg || pfound->flag != p->flag || pfound->val != p->val)
+                        ambig = 1;
+                }
+                if (ambig && !exact)
+                {
+                    if (print_errors)
+                    {
+                        fprintf(stderr, "%s: option '-W %s' is ambiguous\n",argv[0], d->optarg);
+                    }
+                    d->__nextchar += strlen(d->__nextchar);
+                    d->optind++;
+                    return '?';
+                }
+                if (pfound != NULL)
+                {
+                    option_index = indfound;
+                    if (*nameend)
+                    {
+                        if (pfound->has_arg)
+                            d->optarg = nameend + 1;
+                        else
+                        {
+                            if (print_errors)
+                            {
+                                fprintf(stderr, "%s: option '-W %s' doesn't allow an argument\n",argv[0], pfound->name);
+                            }
+                            d->__nextchar += strlen(d->__nextchar);
+                            return '?';
+                        }
+                    }
+                    else if (pfound->has_arg == 1)
+                    {
+                        if (d->optind < argc)
+                            d->optarg = argv[d->optind++];
+                        else
+                        {
+                            if (print_errors)
+                            {
+                                fprintf(stderr, "%s: option '-W %s' requires an argument\n",argv[0], pfound->name);
+                            }
+                            d->__nextchar += strlen(d->__nextchar);
+                            return optstring[0] == ':' ? ':' : '?';
+                        }
+                    }
+                    else
+                        d->optarg = NULL;
+                    d->__nextchar += strlen(d->__nextchar);
+                    if (longind != NULL)
+                        *longind = option_index;
+                    if (pfound->flag)
+                    {
+                        *(pfound->flag) = pfound->val;
+                        return 0;
+                    }
+                    return pfound->val;
+                }
+no_longs:
+                d->__nextchar = NULL;
+                return 'W';
+        }
+        if (temp[1] == ':')
+        {
+            if (temp[2] == ':')
+            {
+                if (*d->__nextchar != '\0')
+                {
+                    d->optarg = d->__nextchar;
+                    d->optind++;
+                }
+                else
+                    d->optarg = NULL;
+                d->__nextchar = NULL;
+            }
+            else
+            {
+                if (*d->__nextchar != '\0')
+                {
+                    d->optarg = d->__nextchar;
+                    d->optind++;
+                }
+                else if (d->optind == argc)
+                {
+                    if (print_errors)
+                    {
+                        fprintf(stderr,"%s: option requires an argument -- '%c'\n",argv[0], c);
+                    }
+                    d->optopt = c;
+                    if (optstring[0] == ':')
+                        c = ':';
+                    else
+                        c = '?';
+                }
+                else
+                    d->optarg = argv[d->optind++];
+                d->__nextchar = NULL;
+            }
+        }
+        return c;
+    }
+}
+int _getopt_internal_a (int argc, char *const *argv, const char *optstring, const struct option_a *longopts, int *longind, int long_only, int posixly_correct)
+{
+    int result;
+    getopt_data_a.optind = optind;
+    getopt_data_a.opterr = opterr;
+    result = _getopt_internal_r_a (argc, argv, optstring, longopts,longind, long_only, &getopt_data_a,posixly_correct);
+    optind = getopt_data_a.optind;
+    optarg_a = getopt_data_a.optarg;
+    optopt = getopt_data_a.optopt;
+    return result;
+}
+int getopt_a (int argc, char *const *argv, const char *optstring) _GETOPT_THROW
+{
+    return _getopt_internal_a (argc, argv, optstring, (const struct option_a *) 0, (int *) 0, 0, 0);
+}
+int getopt_long_a (int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW
+{
+    return _getopt_internal_a (argc, argv, options, long_options, opt_index, 0, 0);
+}
+int getopt_long_only_a (int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW
+{
+    return _getopt_internal_a (argc, argv, options, long_options, opt_index, 1, 0);
+}
+int _getopt_long_r_a (int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index, struct _getopt_data_a *d)
+{
+    return _getopt_internal_r_a (argc, argv, options, long_options, opt_index,0, d, 0);
+}
+int _getopt_long_only_r_a (int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index, struct _getopt_data_a *d)
+{
+    return _getopt_internal_r_a (argc, argv, options, long_options, opt_index, 1, d, 0);
+}
+
+//
+//
+//	Unicode Structures and Functions
+//
+//
+
+static struct _getopt_data_w
+{
+    int optind;
+    int opterr;
+    int optopt;
+    wchar_t *optarg;
+    int __initialized;
+    wchar_t *__nextchar;
+    enum ENUM_ORDERING __ordering;
+    int __posixly_correct;
+    int __first_nonopt;
+    int __last_nonopt;
+} getopt_data_w;
+wchar_t *optarg_w;
+
+static void exchange_w(wchar_t **argv, struct _getopt_data_w *d)
+{
+    int bottom = d->__first_nonopt;
+    int middle = d->__last_nonopt;
+    int top = d->optind;
+    wchar_t *tem;
+    while (top > middle && middle > bottom)
+    {
+        if (top - middle > middle - bottom)
+        {
+            int len = middle - bottom;
+            register int i;
+            for (i = 0; i < len; i++)
+            {
+                tem = argv[bottom + i];
+                argv[bottom + i] = argv[top - (middle - bottom) + i];
+                argv[top - (middle - bottom) + i] = tem;
+            }
+            top -= len;
+        }
+        else
+        {
+            int len = top - middle;
+            register int i;
+            for (i = 0; i < len; i++)
+            {
+                tem = argv[bottom + i];
+                argv[bottom + i] = argv[middle + i];
+                argv[middle + i] = tem;
+            }
+            bottom += len;
+        }
+    }
+    d->__first_nonopt += (d->optind - d->__last_nonopt);
+    d->__last_nonopt = d->optind;
+}
+static const wchar_t *_getopt_initialize_w (const wchar_t *optstring, struct _getopt_data_w *d, int posixly_correct)
+{
+    d->__first_nonopt = d->__last_nonopt = d->optind;
+    d->__nextchar = NULL;
+    d->__posixly_correct = posixly_correct | !!_wgetenv(L"POSIXLY_CORRECT");
+    if (optstring[0] == L'-')
+    {
+        d->__ordering = RETURN_IN_ORDER;
+        ++optstring;
+    }
+    else if (optstring[0] == L'+')
+    {
+        d->__ordering = REQUIRE_ORDER;
+        ++optstring;
+    }
+    else if (d->__posixly_correct)
+        d->__ordering = REQUIRE_ORDER;
+    else
+        d->__ordering = PERMUTE;
+    return optstring;
+}
+int _getopt_internal_r_w (int argc, wchar_t *const *argv, const wchar_t *optstring, const struct option_w *longopts, int *longind, int long_only, struct _getopt_data_w *d, int posixly_correct)
+{
+    int print_errors = d->opterr;
+    if (argc < 1)
+        return -1;
+    d->optarg = NULL;
+    if (d->optind == 0 || !d->__initialized)
+    {
+        if (d->optind == 0)
+            d->optind = 1;
+        optstring = _getopt_initialize_w (optstring, d, posixly_correct);
+        d->__initialized = 1;
+    }
+    else if (optstring[0] == L'-' || optstring[0] == L'+')
+        optstring++;
+    if (optstring[0] == L':')
+        print_errors = 0;
+    if (d->__nextchar == NULL || *d->__nextchar == L'\0')
+    {
+        if (d->__last_nonopt > d->optind)
+            d->__last_nonopt = d->optind;
+        if (d->__first_nonopt > d->optind)
+            d->__first_nonopt = d->optind;
+        if (d->__ordering == PERMUTE)
+        {
+            if (d->__first_nonopt != d->__last_nonopt && d->__last_nonopt != d->optind)
+                exchange_w((wchar_t **) argv, d);
+            else if (d->__last_nonopt != d->optind)
+                d->__first_nonopt = d->optind;
+            while (d->optind < argc && (argv[d->optind][0] != L'-' || argv[d->optind][1] == L'\0'))
+                d->optind++;
+            d->__last_nonopt = d->optind;
+        }
+        if (d->optind != argc && !wcscmp(argv[d->optind], L"--"))
+        {
+            d->optind++;
+            if (d->__first_nonopt != d->__last_nonopt && d->__last_nonopt != d->optind)
+                exchange_w((wchar_t **) argv, d);
+            else if (d->__first_nonopt == d->__last_nonopt)
+                d->__first_nonopt = d->optind;
+            d->__last_nonopt = argc;
+            d->optind = argc;
+        }
+        if (d->optind == argc)
+        {
+            if (d->__first_nonopt != d->__last_nonopt)
+                d->optind = d->__first_nonopt;
+            return -1;
+        }
+        if ((argv[d->optind][0] != L'-' || argv[d->optind][1] == L'\0'))
+        {
+            if (d->__ordering == REQUIRE_ORDER)
+                return -1;
+            d->optarg = argv[d->optind++];
+            return 1;
+        }
+        d->__nextchar = (argv[d->optind] + 1 + (longopts != NULL && argv[d->optind][1] == L'-'));
+    }
+    if (longopts != NULL && (argv[d->optind][1] == L'-' || (long_only && (argv[d->optind][2] || !wcschr(optstring, argv[d->optind][1])))))
+    {
+        wchar_t *nameend;
+        unsigned int namelen;
+        const struct option_w *p;
+        const struct option_w *pfound = NULL;
+        struct option_list
+        {
+            const struct option_w *p;
+            struct option_list *next;
+        } *ambig_list = NULL;
+        int exact = 0;
+        int indfound = -1;
+        int option_index;
+        for (nameend = d->__nextchar; *nameend && *nameend != L'='; nameend++);
+        namelen = (unsigned int)(nameend - d->__nextchar);
+        for (p = longopts, option_index = 0; p->name; p++, option_index++)
+            if (!wcsncmp(p->name, d->__nextchar, namelen))
+            {
+                if (namelen == (unsigned int)wcslen(p->name))
+                {
+                    pfound = p;
+                    indfound = option_index;
+                    exact = 1;
+                    break;
+                }
+                else if (pfound == NULL)
+                {
+                    pfound = p;
+                    indfound = option_index;
+                }
+                else if (long_only || pfound->has_arg != p->has_arg || pfound->flag != p->flag || pfound->val != p->val)
+                {
+                    struct option_list *newp = (struct option_list*)alloca(sizeof(*newp));
+                    newp->p = p;
+                    newp->next = ambig_list;
+                    ambig_list = newp;
+                }
+            }
+            if (ambig_list != NULL && !exact)
+            {
+                if (print_errors)
+                {
+                    struct option_list first;
+                    first.p = pfound;
+                    first.next = ambig_list;
+                    ambig_list = &first;
+                    fwprintf(stderr, L"%s: option '%s' is ambiguous; possibilities:", argv[0], argv[d->optind]);
+                    do
+                    {
+                        fwprintf (stderr, L" '--%s'", ambig_list->p->name);
+                        ambig_list = ambig_list->next;
+                    }
+                    while (ambig_list != NULL);
+                    fputwc (L'\n', stderr);
+                }
+                d->__nextchar += wcslen(d->__nextchar);
+                d->optind++;
+                d->optopt = 0;
+                return L'?';
+            }
+            if (pfound != NULL)
+            {
+                option_index = indfound;
+                d->optind++;
+                if (*nameend)
+                {
+                    if (pfound->has_arg)
+                        d->optarg = nameend + 1;
+                    else
+                    {
+                        if (print_errors)
+                        {
+                            if (argv[d->optind - 1][1] == L'-')
+                            {
+                                fwprintf(stderr, L"%s: option '--%s' doesn't allow an argument\n",argv[0], pfound->name);
+                            }
+                            else
+                            {
+                                fwprintf(stderr, L"%s: option '%c%s' doesn't allow an argument\n",argv[0], argv[d->optind - 1][0],pfound->name);
+                            }
+                        }
+                        d->__nextchar += wcslen(d->__nextchar);
+                        d->optopt = pfound->val;
+                        return L'?';
+                    }
+                }
+                else if (pfound->has_arg == 1)
+                {
+                    if (d->optind < argc)
+                        d->optarg = argv[d->optind++];
+                    else
+                    {
+                        if (print_errors)
+                        {
+                            fwprintf(stderr,L"%s: option '--%s' requires an argument\n",argv[0], pfound->name);
+                        }
+                        d->__nextchar += wcslen(d->__nextchar);
+                        d->optopt = pfound->val;
+                        return optstring[0] == L':' ? L':' : L'?';
+                    }
+                }
+                d->__nextchar += wcslen(d->__nextchar);
+                if (longind != NULL)
+                    *longind = option_index;
+                if (pfound->flag)
+                {
+                    *(pfound->flag) = pfound->val;
+                    return 0;
+                }
+                return pfound->val;
+            }
+            if (!long_only || argv[d->optind][1] == L'-' || wcschr(optstring, *d->__nextchar) == NULL)
+            {
+                if (print_errors)
+                {
+                    if (argv[d->optind][1] == L'-')
+                    {
+                        fwprintf(stderr, L"%s: unrecognized option '--%s'\n",argv[0], d->__nextchar);
+                    }
+                    else
+                    {
+                        fwprintf(stderr, L"%s: unrecognized option '%c%s'\n",argv[0], argv[d->optind][0], d->__nextchar);
+                    }
+                }
+                d->__nextchar = (wchar_t *)L"";
+                d->optind++;
+                d->optopt = 0;
+                return L'?';
+            }
+    }
+    {
+        wchar_t c = *d->__nextchar++;
+        wchar_t *temp = (wchar_t*)wcschr(optstring, c);
+        if (*d->__nextchar == L'\0')
+            ++d->optind;
+        if (temp == NULL || c == L':' || c == L';')
+        {
+            if (print_errors)
+            {
+                fwprintf(stderr, L"%s: invalid option -- '%c'\n", argv[0], c);
+            }
+            d->optopt = c;
+            return L'?';
+        }
+        if (temp[0] == L'W' && temp[1] == L';')
+        {
+            wchar_t *nameend;
+            const struct option_w *p;
+            const struct option_w *pfound = NULL;
+            int exact = 0;
+            int ambig = 0;
+            int indfound = 0;
+            int option_index;
+            if (longopts == NULL)
+                goto no_longs;
+            if (*d->__nextchar != L'\0')
+            {
+                d->optarg = d->__nextchar;
+                d->optind++;
+            }
+            else if (d->optind == argc)
+            {
+                if (print_errors)
+                {
+                    fwprintf(stderr,L"%s: option requires an argument -- '%c'\n",argv[0], c);
+                }
+                d->optopt = c;
+                if (optstring[0] == L':')
+                    c = L':';
+                else
+                    c = L'?';
+                return c;
+            }
+            else
+                d->optarg = argv[d->optind++];
+            for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != L'='; nameend++);
+            for (p = longopts, option_index = 0; p->name; p++, option_index++)
+                if (!wcsncmp(p->name, d->__nextchar, nameend - d->__nextchar))
+                {
+                    if ((unsigned int) (nameend - d->__nextchar) == wcslen(p->name))
+                    {
+                        pfound = p;
+                        indfound = option_index;
+                        exact = 1;
+                        break;
+                    }
+                    else if (pfound == NULL)
+                    {
+                        pfound = p;
+                        indfound = option_index;
+                    }
+                    else if (long_only || pfound->has_arg != p->has_arg || pfound->flag != p->flag || pfound->val != p->val)
+                        ambig = 1;
+                }
+                if (ambig && !exact)
+                {
+                    if (print_errors)
+                    {
+                        fwprintf(stderr, L"%s: option '-W %s' is ambiguous\n",argv[0], d->optarg);
+                    }
+                    d->__nextchar += wcslen(d->__nextchar);
+                    d->optind++;
+                    return L'?';
+                }
+                if (pfound != NULL)
+                {
+                    option_index = indfound;
+                    if (*nameend)
+                    {
+                        if (pfound->has_arg)
+                            d->optarg = nameend + 1;
+                        else
+                        {
+                            if (print_errors)
+                            {
+                                fwprintf(stderr, L"%s: option '-W %s' doesn't allow an argument\n",argv[0], pfound->name);
+                            }
+                            d->__nextchar += wcslen(d->__nextchar);
+                            return L'?';
+                        }
+                    }
+                    else if (pfound->has_arg == 1)
+                    {
+                        if (d->optind < argc)
+                            d->optarg = argv[d->optind++];
+                        else
+                        {
+                            if (print_errors)
+                            {
+                                fwprintf(stderr, L"%s: option '-W %s' requires an argument\n",argv[0], pfound->name);
+                            }
+                            d->__nextchar += wcslen(d->__nextchar);
+                            return optstring[0] == L':' ? L':' : L'?';
+                        }
+                    }
+                    else
+                        d->optarg = NULL;
+                    d->__nextchar += wcslen(d->__nextchar);
+                    if (longind != NULL)
+                        *longind = option_index;
+                    if (pfound->flag)
+                    {
+                        *(pfound->flag) = pfound->val;
+                        return 0;
+                    }
+                    return pfound->val;
+                }
+no_longs:
+                d->__nextchar = NULL;
+                return L'W';
+        }
+        if (temp[1] == L':')
+        {
+            if (temp[2] == L':')
+            {
+                if (*d->__nextchar != L'\0')
+                {
+                    d->optarg = d->__nextchar;
+                    d->optind++;
+                }
+                else
+                    d->optarg = NULL;
+                d->__nextchar = NULL;
+            }
+            else
+            {
+                if (*d->__nextchar != L'\0')
+                {
+                    d->optarg = d->__nextchar;
+                    d->optind++;
+                }
+                else if (d->optind == argc)
+                {
+                    if (print_errors)
+                    {
+                        fwprintf(stderr,L"%s: option requires an argument -- '%c'\n",argv[0], c);
+                    }
+                    d->optopt = c;
+                    if (optstring[0] == L':')
+                        c = L':';
+                    else
+                        c = L'?';
+                }
+                else
+                    d->optarg = argv[d->optind++];
+                d->__nextchar = NULL;
+            }
+        }
+        return c;
+    }
+}
+int _getopt_internal_w (int argc, wchar_t *const *argv, const wchar_t *optstring, const struct option_w *longopts, int *longind, int long_only, int posixly_correct)
+{
+    int result;
+    getopt_data_w.optind = optind;
+    getopt_data_w.opterr = opterr;
+    result = _getopt_internal_r_w (argc, argv, optstring, longopts,longind, long_only, &getopt_data_w,posixly_correct);
+    optind = getopt_data_w.optind;
+    optarg_w = getopt_data_w.optarg;
+    optopt = getopt_data_w.optopt;
+    return result;
+}
+int getopt_w (int argc, wchar_t *const *argv, const wchar_t *optstring) _GETOPT_THROW
+{
+    return _getopt_internal_w (argc, argv, optstring, (const struct option_w *) 0, (int *) 0, 0, 0);
+}
+int getopt_long_w (int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index) _GETOPT_THROW
+{
+    return _getopt_internal_w (argc, argv, options, long_options, opt_index, 0, 0);
+}
+int getopt_long_only_w (int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index) _GETOPT_THROW
+{
+    return _getopt_internal_w (argc, argv, options, long_options, opt_index, 1, 0);
+}
+int _getopt_long_r_w (int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index, struct _getopt_data_w *d)
+{
+    return _getopt_internal_r_w (argc, argv, options, long_options, opt_index,0, d, 0);
+}
+int _getopt_long_only_r_w (int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index, struct _getopt_data_w *d)
+{
+    return _getopt_internal_r_w (argc, argv, options, long_options, opt_index, 1, d, 0);
+}

MSVC/wingetopt.h

@@ -0,0 +1,97 @@
+#ifndef __WINGETOPT_H_
+    #define __WINGETOPT_H_
+
+    #ifdef _GETOPT_API
+        #undef _GETOPT_API
+    #endif
+
+    #if defined(EXPORTS_GETOPT) && defined(STATIC_GETOPT)
+        #error "The preprocessor definitions of EXPORTS_GETOPT and STATIC_GETOPT can only be used individually"
+    #elif defined(STATIC_GETOPT)
+        #define _GETOPT_API
+    #elif defined(EXPORTS_GETOPT)
+        #define _GETOPT_API __declspec(dllexport)
+    #else
+        #define _GETOPT_API __declspec(dllimport)
+    #endif
+
+    // Change behavior for C\C++
+    #ifdef __cplusplus
+        #define _BEGIN_EXTERN_C extern "C" {
+        #define _END_EXTERN_C }
+        #define _GETOPT_THROW throw()
+    #else
+        #define _BEGIN_EXTERN_C
+        #define _END_EXTERN_C
+        #define _GETOPT_THROW
+    #endif
+
+    // Standard GNU options
+    #define	null_argument		0	/*Argument Null*/
+    #define	no_argument			0	/*Argument Switch Only*/
+    #define required_argument	1	/*Argument Required*/
+    #define optional_argument	2	/*Argument Optional*/
+
+
+    // Shorter Options
+    #define ARG_NULL	0	/*Argument Null*/
+    #define ARG_NONE	0	/*Argument Switch Only*/
+    #define ARG_REQ		1	/*Argument Required*/
+    #define ARG_OPT		2	/*Argument Optional*/
+
+    #include <string.h>
+    #include <wchar.h>
+
+_BEGIN_EXTERN_C
+
+    extern _GETOPT_API int optind;
+    extern _GETOPT_API int opterr;
+    extern _GETOPT_API int optopt;
+
+    // Ansi
+    struct option_a
+    {
+        const char* name;
+        int has_arg;
+        int *flag;
+        int val;
+    };
+    extern _GETOPT_API char *optarg_a;
+    extern _GETOPT_API int getopt_a(int argc, char *const *argv, const char *optstring) _GETOPT_THROW;
+    extern _GETOPT_API int getopt_long_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW;
+    extern _GETOPT_API int getopt_long_only_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW;
+
+    // Unicode
+    struct option_w
+    {
+        const wchar_t* name;
+        int has_arg;
+        int *flag;
+        int val;
+    };
+    extern _GETOPT_API wchar_t *optarg_w;
+    extern _GETOPT_API int getopt_w(int argc, wchar_t *const *argv, const wchar_t *optstring) _GETOPT_THROW;
+    extern _GETOPT_API int getopt_long_w(int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index) _GETOPT_THROW;
+    extern _GETOPT_API int getopt_long_only_w(int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index) _GETOPT_THROW;
+
+_END_EXTERN_C
+
+    #undef _BEGIN_EXTERN_C
+    #undef _END_EXTERN_C
+    #undef _GETOPT_THROW
+    #undef _GETOPT_API
+
+    #ifdef _UNICODE
+        #define getopt getopt_w
+        #define getopt_long getopt_long_w
+        #define getopt_long_only getopt_long_only_w
+        #define option option_w
+        #define optarg optarg_w
+    #else
+        #define getopt getopt_a
+        #define getopt_long getopt_long_a
+        #define getopt_long_only getopt_long_only_a
+        #define option option_a
+        #define optarg optarg_a
+    #endif
+#endif  // __WINGETOPT_H_

Makefile.am

@@ -1,6 +1,8 @@
 AM_CXXFLAGS = -pthread
 
-SUBDIRS = src
+SUBDIRS =
+
+SUBDIRS += src
 
 if ENABLE_TOOLS
 SUBDIRS += tools
@@ -10,6 +12,10 @@ if USE_CYTHON
 SUBDIRS += python
 endif
 
+if ENABLE_TESTS
+SUBDIRS += tests
+endif
+
 if HAVE_DOXYGEN
 SUBDIRS += doc
 endif
@@ -18,7 +24,7 @@ ACLOCAL_AMFLAGS = -I m4
 
 DOC_FILES = \
 			README.md \
-			LICENSE
+			COPYING
 
 EXTRA_DIST = \
 			$(DOC_FILES)

README.md

@@ -1,29 +1,36 @@
-OpenDHT
-===
-A lightweight C++11 Distributed Hash Table implementation originally based on https://github.com/jech/dht by Juliusz Chroboczek.
+<img src="https://raw.githubusercontent.com/savoirfairelinux/opendht/master/resources/opendht_logo_512.png" width="100" align="right">
+<br>
+<h1 style="margin-top:10px">
+    <a id="user-content-opendht-" class="anchor" href="/savoirfairelinux/opendht/blob/master/README.md#opendht-" aria-hidden="true"></a>OpenDHT
+</h1>
 
- * Light and fast C++11 Kademlia DHT library.
- * Distributed shared key->value data-store
- * Clean and powerfull distributed map API with storage of arbitrary binary values of up to 56 KB.
- * Optional public key cryptography layer providing data signature and encryption (using GnuTLS).
- * IPv4 and IPv6 support.
- * Python binding.
+A lightweight C++11 Distributed Hash Table implementation.
 
-Documentation
--
+OpenDHT provides an easy to use distributed in-memory data store.
+Every node in the network can read and write values to the store.
+Values are distributed over the network, with redundancy.
+
+ * Lightweight and scalable, designed for large networks and small devices
+ * High resilience to network disruption
+ * Public key cryptography layer providing optional data signature and encryption (using GnuTLS)
+ * IPv4 and IPv6 support
+ * Clean and powerful C++11 map API
+ * Python 3 bindings
+ * REST API
+
+## Documentation
 See the wiki: <https://github.com/savoirfairelinux/opendht/wiki>
 
 #### How-to build and install
 
-Build instructions : <https://github.com/savoirfairelinux/opendht/wiki/Build-the-library>
+Build instructions: <https://github.com/savoirfairelinux/opendht/wiki/Build-the-library>
 
 #### How-to build a simple client app
 ```bash
 g++ main.cpp -std=c++11 -lopendht -lgnutls
 ```
 
-Examples
--
+## Examples
 ### C++ example
 The `tools` directory includes simple example programs :
 * `dhtnode`, a command line tool, mostly used for debuging, allowing to perform operations supported by the library (get, put etc.) with text values.
@@ -85,22 +92,31 @@ for r in results:
     print(r)
 ```
 
-Dependencies
--
+## Dependencies
 - msgpack-c 1.2+, used for data serialization.
-- GnuTLS 3.1+, used for cryptographic operations.
+- GnuTLS 3.3+, used for cryptographic operations.
 - Nettle 2.4+, a GnuTLS dependency for crypto.
-- Build tested with GCC 4.8+ (GNU/Linux, Android, Windows with MinGW), Clang/LLVM (Linux, OS X).
+- (optional) restbed used for the REST API. commit fb84213e170bc171fecd825a8e47ed9f881a12cd (https://github.com/AmarOk1412/restbed/tree/async_read_until)
+- (optional) jsoncpp 1.7.4-3+, used for the REST API.
+- Build tested with GCC 5.2+ (GNU/Linux, Windows with MinGW), Clang/LLVM (GNU/Linux, Android, macOS, iOS).
 - Build tested with Microsoft Visual Studio 2015
 
-Licence
--
-Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+## Contact
 
-Licenced under the GNU General Public License version 3 (see COPYING for the full licence).
+IRC: join us on Freenode at [`#opendht`](https://webchat.freenode.net/?channels=%23opendht).
 
-This project is independent from another project called OpenDHT (Sean Rhea. Ph.D. Thesis, 2005), now extinct.
+## License
+Copyright (C) 2014-2019 Savoir-faire Linux Inc.
 
-Donations
--
+OpenDHT is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+See COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html for the full GPLv3 license.
+
+## Acknowledgements
+This project was originally based on https://github.com/jech/dht by Juliusz Chroboczek.
+It is independent from another project called OpenDHT (Sean Rhea. Ph.D. Thesis, 2005), now extinct.
+
+## Donations
 We gratefully accept Bitcoin donations to support OpenDHT development at: `bitcoin:3EykSd1An888efq4Bq3KaV3hJ3JQ4FPnwm`.

autogen.sh

@@ -1 +1,2 @@
+git submodule update --init
 autoreconf --install --verbose -Wall

cmake/FindCppunit.cmake

@@ -0,0 +1,28 @@
+INCLUDE(FindPkgConfig)
+PKG_CHECK_MODULES(PC_CPPUNIT "cppunit")
+
+FIND_PATH(CPPUNIT_INCLUDE_DIRS
+    NAMES cppunit/TestCase.h
+    HINTS ${PC_CPPUNIT_INCLUDE_DIR}
+    ${CMAKE_INSTALL_PREFIX}/include
+    PATHS
+    /usr/local/include
+    /usr/include
+)
+
+FIND_LIBRARY(CPPUNIT_LIBRARIES
+    NAMES cppunit
+    HINTS ${PC_CPPUNIT_LIBDIR}
+    ${CMAKE_INSTALL_PREFIX}/lib
+    ${CMAKE_INSTALL_PREFIX}/lib64
+    PATHS
+    ${CPPUNIT_INCLUDE_DIRS}/../lib
+    /usr/local/lib
+    /usr/lib
+)
+
+LIST(APPEND CPPUNIT_LIBRARIES ${CMAKE_DL_LIBS})
+
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(CPPUNIT DEFAULT_MSG CPPUNIT_LIBRARIES CPPUNIT_INCLUDE_DIRS)
+MARK_AS_ADVANCED(CPPUNIT_LIBRARIES CPPUNIT_INCLUDE_DIRS)

cmake/FindRestbed.cmake

@@ -0,0 +1,16 @@
+if(NOT Restbed_FOUND)
+    find_path (Restbed_INCLUDE_DIR restbed
+               HINTS
+               "/usr/include"
+               "/usr/local/include"
+               "/opt/local/include")
+    find_library(Restbed_LIBRARY restbed
+                 HINTS ${Restbed_ROOT_DIR} PATH_SUFFIXES lib)
+    include(FindPackageHandleStandardArgs)
+    find_package_handle_standard_args(Restbed DEFAULT_MSG Restbed_LIBRARY Restbed_INCLUDE_DIR)
+    if (Restbed_INCLUDE_DIR)
+        set(Restbed_FOUND TRUE)
+        set(Restbed_LIBRARIES ${Restbed_LIBRARY})
+        set(Restbed_INCLUDE_DIRS ${Restbed_INCLUDE_DIR})
+    endif()
+endif()

configure.ac

@@ -1,24 +1,50 @@
-AC_INIT(opendht, 0.6.1)
+dnl define macros
+m4_define([opendht_major_version], 1)
+m4_define([opendht_minor_version], 9)
+m4_define([opendht_patch_version], 1)
+m4_define([opendht_version],
+		  [opendht_major_version.opendht_minor_version.opendht_patch_version])
+
+AC_INIT(opendht, [opendht_version])
 AC_CONFIG_AUX_DIR(ac)
 AM_INIT_AUTOMAKE([foreign subdir-objects])
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CANONICAL_HOST
 
+AC_SUBST(OPENDHT_MAJOR_VERSION, opendht_major_version)
+AC_SUBST(OPENDHT_MINOR_VERSION, opendht_minor_version)
+AC_SUBST(OPENDHT_PATCH_VERSION, opendht_patch_version)
+
 AC_ARG_ENABLE([debug], AS_HELP_STRING([--enable-debug], [Build in debug mode, adds stricter warnings, disables optimization]))
 AS_IF([test "x$enable_debug" = "xyes"],
-      [CXXFLAGS="${CXXFLAGS} -g -Wno-return-type -Wall -Wextra -Wnon-virtual-dtor -O0"],
-      [CXXFLAGS="${CXXFLAGS} -O3"])
+      [CXXFLAGS="${CXXFLAGS} -g -Wno-return-type -Wall -Wextra -Wnon-virtual-dtor -O0 -pedantic-errors"],
+      [CXXFLAGS="${CXXFLAGS} -O3 -pedantic-errors"])
 
 AC_PROG_CXX
 AM_PROG_AR
 
+dnl Check for logs
+AC_ARG_ENABLE([logs], [AS_HELP_STRING([--disable-logs], [Disable DHT logs])])
+AS_IF([test "x$enable_logs" != "xno"], [
+	AC_DEFINE([OPENDHT_LOG], [true], [Define if DHT logs are enabled])
+], [
+	AC_DEFINE([OPENDHT_LOG], [false], [Define if DHT logs are enabled])
+])
+
+dnl Check for indexation
+AC_ARG_ENABLE([indexation], [AS_HELP_STRING([--disable-indexation], [Disable DHT indexation])])
+AM_CONDITIONAL(ENABLE_INDEXATION, test x$enable_indexation != "xno")
+AS_IF([test "x$enable_indexation" != "xno"], [
+	AC_DEFINE([OPENDHT_INDEXATION], [1], [Define if DHT indexation is enabled])
+])
+
 dnl Check for Doxygen
-AC_ARG_ENABLE([doc], [AS_HELP_STRING([--disable-doc], [Disable documentation generation (doxygen)])])
-AS_IF([test "x$enable_doc" != "xno"], [
+AC_ARG_ENABLE([doc], AS_HELP_STRING([--enable-doc], [Enable documentation generation (doxygen)]))
+AS_IF([test "x$enable_doc" = "xyes"], [
        AC_CHECK_PROGS([DOXYGEN], [doxygen])
-       AS_IF([test -z "$DOXYGEN"],[AC_MSG_WARN([Doxygen not found - continuing without Doxygen support])])
-       ])
+       AS_IF([test -z "$DOXYGEN"], [AC_MSG_WARN([Doxygen not found - continuing without Doxygen support])])
+])
 AM_CONDITIONAL([HAVE_DOXYGEN], [test -n "$DOXYGEN"])
 
 dnl Check for Python
@@ -26,8 +52,8 @@ AC_ARG_ENABLE([python], [AS_HELP_STRING([--disable-python], [Disble python bindi
 AS_IF([test "x$enable_python" != "xno"], [
        AM_PATH_PYTHON([3.3],, [:])
        AS_IF([test -n "$PYTHON"],[
-              AC_CHECK_PROGS([CYTHON], [cython3])
-              AS_IF([test -z "$CYTHON"],[AC_MSG_WARN([Cython not found - continuing without python support])])
+              echo 'import Cython' | $PYTHON
+              AS_IF([test $? == 0],[CYTHON=yes],[AC_MSG_WARN([Cython not found - continuing without python support])])
               AC_CHECK_PROGS([PIP], [pip3])
               AS_IF([test -z "$PIP"],[AC_MSG_WARN([pip not found - continuing without python uninstall support])])
               ])
@@ -75,11 +101,74 @@ LT_LANG(C++)
 AX_CXX_COMPILE_STDCXX(11,[noext],[mandatory])
 
 PKG_PROG_PKG_CONFIG()
-PKG_CHECK_MODULES([nettle], [nettle >= 2.4])
-PKG_CHECK_MODULES([GNUTLS], [gnutls >= 3.1])
-PKG_CHECK_MODULES([msgpack], [msgpack >= 1.2])
+
+AC_ARG_ENABLE([proxy_server], AS_HELP_STRING([--enable-proxy-server], [Enable proxy server ability]), proxy_server=yes, proxy_server=no)
+AM_CONDITIONAL(ENABLE_PROXY_SERVER, test x$proxy_server == xyes)
+
+AC_ARG_ENABLE([push_notifications], AS_HELP_STRING([--enable-push-notifications], [Enable push notifications support]), push_notifications=yes, push_notifications=no)
+AM_CONDITIONAL(ENABLE_PUSH_NOTIFICATIONS, test x$push_notifications == xyes)
+
+AC_ARG_ENABLE([proxy_server_identity], AS_HELP_STRING([--enable-proxy-server-identity],
+	[Enable proxy server ability]), proxy_server_identity=yes, proxy_server_identity=no)
+AM_CONDITIONAL(ENABLE_PROXY_SERVER_IDENTITY, test x$proxy_server_identity == xyes -a x$proxy_server == xyes)
+AC_ARG_ENABLE([proxy_server_identity], AS_HELP_STRING([--enable-proxy-server-identity],
+	[Enable proxy server ability]), proxy_server_identity=yes, proxy_server_identity=no)
+
+AC_ARG_ENABLE([proxy_client], AS_HELP_STRING([--enable-proxy-client], [Enable proxy client ability]), proxy_client=yes, proxy_client=no)
+AM_CONDITIONAL(ENABLE_PROXY_CLIENT, test x$proxy_client == xyes)
+
+AC_ARG_ENABLE([tests], AS_HELP_STRING([--enable-tests], [Enable tests]), build_tests=yes, build_tests=no)
+AM_CONDITIONAL(ENABLE_TESTS, test x$build_tests == xyes)
+AM_COND_IF([ENABLE_TESTS], [
+	PKG_CHECK_MODULES([CppUnit], [cppunit >= 1.12])
+])
+
+AM_CONDITIONAL(PROXY_CLIENT_OR_SERVER, test x$proxy_client == xyes | test x$proxy_server == xyes)
+
+PKG_CHECK_MODULES([Nettle], [nettle >= 2.4])
+PKG_CHECK_MODULES([GnuTLS], [gnutls >= 3.3])
+PKG_CHECK_MODULES([MsgPack], [msgpack >= 1.2])
+
+AC_ARG_WITH([jsoncpp], AS_HELP_STRING([--without-jsoncpp], [Build without JsonCpp support]))
+AS_IF([test "x$with_jsoncpp" != "xno"],
+      [PKG_CHECK_MODULES([JsonCpp], [jsoncpp >= 1.7.2], [have_jsoncpp=yes], [have_jsoncpp=no])],
+      [have_jsoncpp=no])
+AS_IF([test "x$have_jsoncpp" = "xyes"], [
+    AC_MSG_NOTICE([Using JsonCpp])
+    CPPFLAGS+=" -DOPENDHT_JSONCPP=1"
+], [
+    AC_MSG_NOTICE([Not using JsonCpp])
+    AM_COND_IF(PROXY_CLIENT_OR_SERVER, AC_MSG_ERROR(["JsonCpp is required for proxy/push notification support"]))
+])
+
+AM_COND_IF([PROXY_CLIENT_OR_SERVER], [
+	AC_CHECK_LIB(restbed, exit,, AC_MSG_ERROR([Missing restbed files]))
+	LDFLAGS="${LDFLAGS} -lrestbed"
+])
+
 CXXFLAGS="${CXXFLAGS} -DMSGPACK_DISABLE_LEGACY_NIL -DMSGPACK_DISABLE_LEGACY_CONVERT"
 
+dnl Check for Argon2
+AC_ARG_WITH([argon2], AS_HELP_STRING([--without-argon2], [Use included Argon2]))
+AS_IF([test "x$with_argon2" != "xno"],
+			[PKG_CHECK_MODULES([Argon2], [libargon2], [have_argon2=yes], [have_argon2=no])],
+			[have_argon2=no])
+AS_IF([test "x$have_argon2" = "xyes"], [
+  AC_MSG_NOTICE([Using system Argon2])
+  AC_SUBST(argon2_lib, [", libargon2"])
+], [
+		AS_IF([test "x$with_argon2" = "xyes"], [
+				AC_MSG_ERROR([Argon2 requested but not found])
+		],[
+				AC_MSG_NOTICE([Using included Argon2])
+				AC_SUBST(Argon2_CFLAGS, "-I\${top_srcdir}/argon2/src -I\${top_srcdir}/argon2/include")
+				AC_SUBST(Argon2_LIBS, "libargon2.la")
+				AC_SUBST(Argon2_LDFLAGS, "-L\${abs_top_srcdir}/argon2/src/.libs")
+		])
+])
+
+AM_CONDITIONAL([WITH_INCLUDED_ARGON2], [test "x$have_argon2" = "xno"])
+
 AC_ARG_ENABLE([tools], AS_HELP_STRING([--disable-tools],[Disable tools (CLI DHT node)]),,build_tools=yes)
 AM_CONDITIONAL(ENABLE_TOOLS, test x$build_tools == xyes)
 AM_COND_IF([ENABLE_TOOLS], [
@@ -88,7 +177,14 @@ AM_COND_IF([ENABLE_TOOLS], [
   ])
 ])
 
-AM_COND_IF([HAVE_DOXYGEN], [AC_CONFIG_FILES([doc/Doxyfile doc/Makefile])])
+AM_COND_IF(ENABLE_PROXY_SERVER, [CPPFLAGS+=" -DOPENDHT_PROXY_SERVER"], [])
+AM_COND_IF(ENABLE_PROXY_CLIENT, [CPPFLAGS+=" -DOPENDHT_PROXY_CLIENT"], [])
+AM_COND_IF(ENABLE_PUSH_NOTIFICATIONS, [CPPFLAGS+=" -DOPENDHT_PUSH_NOTIFICATIONS"], [])
+AM_COND_IF(ENABLE_PROXY_SERVER_IDENTITY, [CPPFLAGS+=" -DOPENDHT_PROXY_SERVER_IDENTITY"], [])
+
+AM_COND_IF([HAVE_DOXYGEN], [
+  AC_CONFIG_FILES([doc/Doxyfile doc/Makefile])
+])
 
 dnl Configure setup.py if we build the python module
 AM_COND_IF([USE_CYTHON], [
@@ -101,7 +197,7 @@ AM_COND_IF([USE_CYTHON], [
 
 AC_CONFIG_FILES([Makefile
                  src/Makefile
-                 src/argon2/Makefile
                  tools/Makefile
+                 tests/Makefile
                  opendht.pc])
 AC_OUTPUT

doc/CMakeLists.txt

@@ -0,0 +1,16 @@
+if (OPENDHT_TOOLS)
+	INSTALL(FILES ${CMAKE_CURRENT_SOURCE_DIR}/dhtnode.1 DESTINATION ${CMAKE_INSTALL_PREFIX}/share/man/man1)
+endif ()
+
+if (OPENDHT_DOCUMENTATION)
+    if (NOT DOXYGEN_FOUND)
+         message(FATAL_ERROR "Doxygen is needed to build the documentation.")
+    endif()
+    configure_file (Doxyfile.in Doxyfile @ONLY)
+    add_custom_target(doc ALL
+                      COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile
+                      WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+                      COMMENT "Generating API documentation with Doxygen"
+                      VERBATIM)
+    install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html DESTINATION share/doc/opendht)
+endif()

doc/Makefile.am

@@ -1,3 +1,6 @@
+dist_man1_MANS = dhtnode.1
+
+if HAVE_DOXYGEN
 doxyfile.stamp:
 	$(DOXYGEN) Doxyfile
 	echo stamp > doxyfile.stamp
@@ -7,3 +10,4 @@ CLEANFILES = doxyfile.stamp
 all-local: doxyfile.stamp
 clean-local:
 	rm -rf $(top_srcdir)/doc/man $(top_srcdir)/doc/html
+endif

doc/connectivity-loss-by-search-criteria.tex

@@ -0,0 +1,142 @@
+\documentclass[11pt]{article}
+
+\usepackage[utf8x]{inputenc}
+\usepackage[top=2cm,bottom=2cm]{geometry}
+
+\usepackage{forloop}
+\newcounter{counter}
+
+% maths
+\usepackage{amssymb}
+\usepackage{amsmath}
+\usepackage{mathrsfs}
+\usepackage{shadethm}
+\usepackage{amsthm}
+\newshadetheorem{shadeDef}{Definition}[section]
+\newtheorem{remark}{Remark}[section]
+\renewcommand{\P}{\mathbb{P}}
+
+\usepackage{float}
+\usepackage{booktabs}
+
+\setlength{\parindent}{0ex}
+\setlength{\parskip}{0.5em}
+
+\begin{document}
+    \title{Annex 1: Probabilistic analysis of connectivity changes}
+    \author{Adrien Béraud, Simon Désaulniers, Guillaume Roguez}
+    \maketitle
+    \pagestyle{empty}
+    \begin{shadeDef}
+        A node flagged as \emph{``expired''} by a node $n$ is a node which has not responded to any
+        of $n$'s last three requests.
+    \end{shadeDef}
+    \begin{remark}
+        An expired node will not be contacted before 10 minutes from its expiration time.
+    \end{remark}
+
+    Let $N$ the DHT network, $n_0\in N$, a given node and the following probabilistic events:
+    \begin{itemize}
+        \item $A$: $\forall n \in N$ $n$ is unreachable by $n_0$, \emph{i.e.} $n_0$ lost connection
+            with $N$;
+        \item $B$: $S\subset N$, the nodes unreachable by $n_0$ with $k={|S|\over|N|}$;
+        \item $C$: $m \le |N|$ nodes are flagged as ``expired''.
+    \end{itemize}
+
+    We are interested in knowing $\P(A|C)$, \emph{i.e.} the probability of the event where $A$ occurs
+    prior to $C$. From the above, we immediately get
+    $$\left\{
+        \begin{array}{ll}
+            \P(C|A)       & = 1\\
+            \P(A) + \P(B) & = 1
+        \end{array}
+    \right.$$
+    Also, the event $A|C$ can be abstracted as the urn problem of draw without replacement. Then,
+        $$\P(C|B) = \prod_{i=0}^m \left[k|N| - i \over |N|\right] = \prod_{i=0}^m \left[k - { i \over |N| }\right]$$
+    Furthermore, using Bayes' theroem we have
+    \begin{align*}
+        \P(A|C) & = { \P(C|A)\P(A) \over \P(C|A)\P(A) + \P(C|B)\P(B)}\\
+                & = { \P(A) \over \P(A) + \P(C|B)\P(B) }\\
+                & = { \P(A) \over \P(A) + \P(C|B)\left[1 - \P(A)\right] }\\
+        \Rightarrow \forloop{counter}{0}{\value{counter} < 5}{\qquad}\quad  \P(A)  & =
+            \P(A|C)\left[\P(A) + \P(C|B)\left(1 - \P(A)\right) \right] \\
+        \Rightarrow \forloop{counter}{0}{\value{counter} < 2}{\qquad}\;\:\, \P(A)\left[{ 1 \over \P(A|C)} - 1\right] & =
+            \P(C|B)\left(1 - \P(A)\right) \\
+    \end{align*}
+    Finally,
+    \begin{equation}
+        \label{eq:final}
+        \left[{\P(A) \over 1 - \P(A)}\right]\left[{ 1 \over \P(A|C)} - 1\right] =
+            \prod_{i=0}^m \left[k - { i \over |N| }\right]
+    \end{equation}
+
+    From \eqref{eq:final}, we may set a plausible configuration $\{\P(A),\P(A|C),k,|N|\}$ letting us
+    produce results such as in table \ref{tbl:k_1_2}, \ref{tbl:k_2_3} and \ref{tbl:k_3_4}.
+
+    \begin{table}[H]
+        \centering
+        \caption{The values for $m$ assuming $\P(A|C) \ge 0.95,\, k = {1 \over 2}$}
+        \label{tbl:k_1_2}
+        \begin{tabular}{lcccc}
+            \toprule
+            $|N| \diagdown \P(A)$ & ${1 \over 10 }$ & ${1 \over 100 }$ & ${1 \over 1000 }$ & ${1 \over 10000 }$\\
+            \midrule
+            $2^0$               & 1               & 1                & 1                 & 1\\
+            $2^1$               & 1               & 1                & 1                 & 1\\
+            $2^2$               & 2               & 2                & 2                 & 2\\
+            $2^3$               & 4               & 4                & 4                 & 4\\
+            $2^4$               & 5               & 6                & 7                 & 8\\
+            $2^5$               & 5               & 7                & 9                 & 10\\
+            $2^6$               & 6               & 9                & 11                & 13\\
+            $2^7$               & 6               & 9                & 12                & 14\\
+            $2^8$               & 7               & 10               & 13                & 16\\
+            $2^9$               & 7               & 10               & 13                & 16\\
+            $2^{10}$            & 7               & 10               & 13                & 17\\
+            \bottomrule
+        \end{tabular}
+    \end{table}
+    \begin{table}[H]
+        \centering
+        \caption{The values for $m$ assuming $\P(A|C) \ge 0.95,\, k = {2 \over 3}$}
+        \label{tbl:k_2_3}
+        \begin{tabular}{lcccc}
+            \toprule
+            $|N| \diagdown \P(A)$ & ${1 \over 10 }$ & ${1 \over 100 }$ & ${1 \over 1000 }$ & ${1 \over 10000 }$\\
+            \midrule
+            $2^0$               & 1               & 1                & 1                 & 1\\
+            $2^1$               & 2               & 2                & 2                 & 2\\
+            $2^2$               & 3               & 3                & 4                 & 4\\
+            $2^3$               & 5               & 5                & 6                 & 8\\
+            $2^4$               & 6               & 8                & 9                 & 10\\
+            $2^5$               & 8               & 10               & 12                & 14\\
+            $2^6$               & 9               & 13               & 16                & 18\\
+            $2^7$               & 11              & 15               & 18                & 22\\
+            $2^8$               & 11              & 16               & 21                & 25\\
+            $2^9$               & 12              & 17               & 22                & 27\\
+            $2^{10}$            & 12              & 18               & 23                & 28\\
+            \bottomrule
+        \end{tabular}
+    \end{table}
+    \begin{table}[H]
+        \centering
+        \caption{The values for $m$ assuming $\P(A|C) \ge 0.95,\, k = {3 \over 4}$}
+        \label{tbl:k_3_4}
+        \begin{tabular}{lcccc}
+            \toprule
+            $|N| \diagdown \P(A)$ & ${1 \over 10 }$ & ${1 \over 100 }$ & ${1 \over 1000 }$ & ${1 \over 10000 }$\\
+            \midrule
+            $2^0$               & 1               & 1                & 1                 & 1\\
+            $2^1$               & 2               & 2                & 2                 & 2\\
+            $2^2$               & 3               & 3                & 3                 & 3\\
+            $2^3$               & 5               & 6                & 6                 & 6\\
+            $2^4$               & 7               & 9                & 10                & 11\\
+            $2^5$               & 10              & 12               & 14                & 16\\
+            $2^6$               & 12              & 16               & 19                & 22\\
+            $2^7$               & 14              & 19               & 23                & 27\\
+            $2^8$               & 15              & 21               & 27                & 32\\
+            $2^9$               & 16              & 23               & 30                & 36\\
+            $2^{10}$            & 17              & 24               & 31                & 38\\
+            \bottomrule
+        \end{tabular}
+    \end{table}
+\end{document}

doc/dhtnode.1

@@ -0,0 +1,87 @@
+.TH DHTNODE 1 2016-07-29
+
+.SH NAME
+.B dhtnode
+- a simple OpenDHT command line node runner.
+
+.SH SYNOPSIS
+.B dhtnode [-h]
+
+.B dhtnode [-v [-l \fIlogfile\fP]] [-i] [-d] [-n \fInetwork_id\fP] [-p \fIlocal_port\fP] [-b \fIbootstrap_host\fP[:\fIport\fP]]
+
+.SH DESCRIPTION
+
+This program runs a simple OpenDHT node in an interactive way. If you rather
+want to run the node in daemon mode, option \fB'-d'\fP is provided. When running
+in the interactive shell, you benefit from the readline capabilities for writing
+your commands such as command history. Here are the available commands in the
+interactive shell:
+
+.EE
+    h, help    Print this help message.
+    q, quit    Quit the program.
+    log        Start/stop printing DHT logs.
+
+    Node information:
+    ll         Print basic information and stats about the current node.
+    ls         Print basic information about current searches.
+    ld         Print basic information about currenty stored values on this node.
+    lr         Print the full current routing table of this node
+
+    Operations on the DHT:
+    b ip:port             Ping potential node at given IP address/port.
+    g [key]               Get values at [key].
+    l [key]               Listen for value changes at [key].
+    p [key] [str]         Put string value at [key].
+    s [key] [str]         Put string value at [key], signed with our generated
+                          private key.
+    e [key] [dest] [str]  Put string value at [key], encrypted for [dest] with
+                          its public key (if found).
+
+.SH OPTIONS
+
+.TP
+\fB-h\fP
+Prints some help.
+
+.TP
+\fB-v\fP
+Enable the verbose mode (log to stdout by default)
+
+.TP
+\fB-l\fP \fIlog_file\fP
+Write log to file instead of stdout
+
+.TP
+\fB-i\fP
+Generate cryptographic identity for the node.
+
+.TP
+\fB-d\fP
+Run the program in daemon mode (will fork in the background).
+
+.TP
+\fB-n\fP \fInetwork_id\fP
+Specify the network id. This let you connect to distinct networks and prevents
+the merge of two different networks (available since OpenDHT v0.6.1).
+
+.TP
+\fB-p\fP \fIlocal_port\fP
+Use port \fIlocal_port\fP for the program to bind to.
+
+.TP
+\fB-b\fP \fIbootstrap_host\fP[:\fIport\fP]
+The program needs to be given a node to connect to the network. You use this
+option to provide the ip address of that node.
+
+.SH AUTHORS
+.TP
+Program written by
+.IP \(bu
+.\}
+Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+.TP
+Man page written by
+.IP \(bu
+.\}
+Simon Désaulniers <sim.desaulniers@gmail.com>

docker/DockerfileDeps

@@ -1,9 +1,18 @@
 FROM ubuntu:16.04
 MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
-RUN apt-get update && apt-get install -y build-essential cmake git wget libncurses5-dev libreadline-dev nettle-dev libgnutls-dev cython3 python3-dev python3-setuptools && apt-get clean
-RUN wget https://github.com/msgpack/msgpack-c/releases/download/cpp-2.0.0/msgpack-2.0.0.tar.gz \
-	&& tar -xzf msgpack-2.0.0.tar.gz \
-	&& cd msgpack-2.0.0 && mkdir build && cd build \
+RUN apt-get update && apt-get install -y build-essential cmake git wget libncurses5-dev libreadline-dev nettle-dev libgnutls28-dev libuv1-dev  cython3 python3-dev libcppunit-dev libjsoncpp-dev libasio-dev libssl-dev python3-setuptools && apt-get clean
+
+# build restbed from sources
+RUN git clone --recursive https://github.com/corvusoft/restbed.git \
+	&& cd restbed && mkdir build && cd build \
+	&& cmake -DBUILD_TESTS=NO -DBUILD_EXAMPLES=NO -DBUILD_SSL=NO -DBUILD_SHARED=YES -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_LIBDIR=lib .. \
+	&& make -j8 install \
+	&& cd .. && rm -rf restbed
+
+#build msgpack from source
+RUN wget https://github.com/msgpack/msgpack-c/releases/download/cpp-2.1.5/msgpack-2.1.5.tar.gz \
+	&& tar -xzf msgpack-2.1.5.tar.gz \
+	&& cd msgpack-2.1.5 && mkdir build && cd build \
 	&& cmake -DMSGPACK_CXX11=ON -DMSGPACK_BUILD_EXAMPLES=OFF -DCMAKE_INSTALL_PREFIX=/usr .. \
 	&& make -j8 && make install \
-	&& cd ../.. && rm -rf msgpack-2.0.0 msgpack-2.0.0.tar.gz
+	&& cd ../.. && rm -rf msgpack-2.1.5 msgpack-2.1.5.tar.gz

docker/DockerfileDepsLlvm

@@ -1,13 +1,23 @@
 FROM ubuntu:16.04
 MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 RUN apt-get update \
-	&& apt-get install -y llvm llvm-dev clang make cmake git wget libncurses5-dev libreadline-dev nettle-dev libgnutls-dev cython3 python3-dev python3-setuptools \
+	&& apt-get install -y llvm llvm-dev clang make cmake git wget libncurses5-dev libreadline-dev nettle-dev libgnutls28-dev libuv1-dev libmsgpack-dev libjsoncpp-dev libasio-dev cython3 python3-dev python3-setuptools libcppunit-dev \
 	&& apt-get remove -y gcc g++ && apt-get autoremove -y && apt-get clean
+
 ENV CC cc
 ENV CXX c++
-RUN wget https://github.com/msgpack/msgpack-c/releases/download/cpp-2.0.0/msgpack-2.0.0.tar.gz \
-	&& tar -xzf msgpack-2.0.0.tar.gz \
-	&& cd msgpack-2.0.0 && mkdir build && cd build \
+
+# build restbed from sources
+RUN git clone --recursive https://github.com/corvusoft/restbed.git \
+	&& cd restbed && mkdir build && cd build \
+	&& cmake -DBUILD_TESTS=NO -DBUILD_EXAMPLES=NO -DBUILD_SSL=NO -DBUILD_SHARED=YES -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_LIBDIR=lib .. \
+	&& make -j8 install \
+	&& cd .. && rm -rf restbed
+
+#build msgpack from source
+RUN wget https://github.com/msgpack/msgpack-c/releases/download/cpp-2.1.5/msgpack-2.1.5.tar.gz \
+	&& tar -xzf msgpack-2.1.5.tar.gz \
+	&& cd msgpack-2.1.5 && mkdir build && cd build \
 	&& cmake -DMSGPACK_CXX11=ON -DMSGPACK_BUILD_EXAMPLES=OFF -DCMAKE_INSTALL_PREFIX=/usr .. \
 	&& make -j8 && make install \
-	&& cd ../.. && rm -rf msgpack-2.0.0 msgpack-2.0.0.tar.gz
+	&& cd ../.. && rm -rf msgpack-2.1.5 msgpack-2.1.5.tar.gz

docker/DockerfileLlvm

@@ -1,6 +0,0 @@
-FROM aberaud/opendht-deps-llvm
-MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
-RUN git clone https://github.com/savoirfairelinux/opendht.git \
-	&& cd opendht && mkdir build && cd build \
-	&& cmake .. -DCMAKE_INSTALL_PREFIX=/usr -DOPENDHT_PYTHON=On && make -j8 && make install \
-	&& cd ../.. && rm -rf opendht

docker/DockerfileTravis

@@ -1,6 +1,7 @@
 FROM aberaud/opendht-deps
 MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+
 COPY . /root/opendht
 RUN cd /root/opendht && mkdir build && cd build \
-	&& cmake -DCMAKE_INSTALL_PREFIX=/usr -DOPENDHT_PYTHON=On -DOPENDHT_LTO=On .. && make -j8 && make install \
-	&& cd ../.. && rm -rf opendht
+	&& cmake -DCMAKE_INSTALL_PREFIX=/usr -DOPENDHT_PYTHON=On -DOPENDHT_LTO=On -DOPENDHT_TESTS=ON ..  \
+	&& make -j8 && ./opendht_unit_tests && make install

docker/DockerfileTravisLlvm

@@ -1,6 +1,7 @@
 FROM aberaud/opendht-deps-llvm
 MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+
 COPY . /root/opendht
 RUN cd /root/opendht && mkdir build && cd build \
-	&& cmake -DCMAKE_INSTALL_PREFIX=/usr -DOPENDHT_PYTHON=On .. && make -j8 && make install \
-	&& cd ../.. && rm -rf opendht
+	&& cmake -DCMAKE_INSTALL_PREFIX=/usr -DOPENDHT_PYTHON=On -DOPENDHT_TESTS=ON .. \
+	&& make -j8 && ./opendht_unit_tests && make install

docker/DockerfileTravisProxy

@@ -0,0 +1,4 @@
+FROM aberaud/opendht-deps
+MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+
+COPY . /root/opendht

include/opendht.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -13,13 +13,17 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
 
 #include "opendht/dhtrunner.h"
+#ifdef OPENDHT_PROXY_SERVER
+#include "opendht/dht_proxy_server.h"
+#endif
 #include "opendht/log.h"
 #include "opendht/default_types.h"
+#ifdef OPENDHT_INDEXATION
 #include "opendht/indexation/pht.h"
+#endif

include/opendht/callbacks.h

@@ -1,6 +1,8 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
- *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
+ *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -13,8 +15,7 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
@@ -26,30 +27,103 @@
 #include <memory>
 #include <functional>
 
+#ifdef OPENDHT_JSONCPP
+#include <json/json.h>
+#endif
+
 namespace dht {
 
 struct Node;
 
+/**
+ * Current status of a DHT node.
+ */
 enum class NodeStatus {
     Disconnected, // 0 nodes
     Connecting,   // 1+ nodes
     Connected     // 1+ good nodes
 };
 
-struct Config {
-    InfoHash node_id;
-    bool is_bootstrap;
+struct OPENDHT_PUBLIC NodeStats {
+    unsigned good_nodes {0},
+             dubious_nodes {0},
+             cached_nodes {0},
+             incoming_nodes {0};
+    unsigned table_depth {0};
+    unsigned getKnownNodes() const { return good_nodes + dubious_nodes; }
+    unsigned long getNetworkSizeEstimation() const { return 8 * std::exp2(table_depth); }
+    std::string toString() const;
+
+#ifdef OPENDHT_JSONCPP
+    /**
+     * Build a json object from a NodeStats
+     */
+    Json::Value toJson() const;
+    NodeStats() {};
+    explicit NodeStats(const Json::Value& v);
+#endif
+
+    MSGPACK_DEFINE_MAP(good_nodes, dubious_nodes, cached_nodes, incoming_nodes, table_depth)
 };
 
-struct SecureDhtConfig
+struct OPENDHT_PUBLIC NodeInfo {
+    InfoHash id;
+    InfoHash node_id;
+    NodeStats ipv4;
+    NodeStats ipv6;
+
+#ifdef OPENDHT_JSONCPP
+    /**
+     * Build a json object from a NodeStats
+     */
+    Json::Value toJson() const;
+    NodeInfo() {};
+    explicit NodeInfo(const Json::Value& v);
+#endif
+
+    MSGPACK_DEFINE_MAP(id, node_id, ipv4, ipv6)
+};
+
+/**
+ * Dht configuration.
+ */
+struct OPENDHT_PUBLIC Config {
+    /** DHT node ID */
+    InfoHash node_id;
+
+    /**
+     * DHT network ID. A node will only talk with other nodes having
+     * the same network ID.
+     * Network ID 0 (default) represents the main public network.
+     */
+    NetId network;
+
+    /** For testing purposes only, enables bootstrap mode */
+    bool is_bootstrap;
+
+    /** Makes the DHT responsible to maintain its stored values. Consumes more ressources. */
+    bool maintain_storage;
+
+    /** If set, the dht will load its state from this file on start and save its state in this file on shutdown */
+    std::string persist_path;
+};
+
+/**
+ * SecureDht configuration.
+ */
+struct OPENDHT_PUBLIC SecureDhtConfig
 {
     Config node_config;
     crypto::Identity id;
 };
 
+static constexpr size_t DEFAULT_STORAGE_LIMIT {1024 * 1024 * 64};
+
 using ValuesExport = std::pair<InfoHash, Blob>;
 
+using QueryCallback = std::function<bool(const std::vector<std::shared_ptr<FieldValueIndex>>& fields)>;
 using GetCallback = std::function<bool(const std::vector<std::shared_ptr<Value>>& values)>;
+using ValueCallback = std::function<bool(const std::vector<std::shared_ptr<Value>>& values, bool expired)>;
 using GetCallbackSimple = std::function<bool(std::shared_ptr<Value> value)>;
 using ShutdownCallback = std::function<void()>;
 
@@ -57,21 +131,21 @@ using CertificateStoreQuery = std::function<std::vector<std::shared_ptr<crypto::
 
 typedef bool (*GetCallbackRaw)(std::shared_ptr<Value>, void *user_data);
 
-static constexpr size_t DEFAULT_STORAGE_LIMIT {1024 * 1024 * 64};
-
-GetCallbackSimple bindGetCb(GetCallbackRaw raw_cb, void* user_data);
-GetCallback bindGetCb(GetCallbackSimple cb);
+OPENDHT_PUBLIC GetCallbackSimple bindGetCb(const GetCallbackRaw& raw_cb, void* user_data);
+OPENDHT_PUBLIC GetCallback bindGetCb(const GetCallbackSimple& cb);
 
 using DoneCallback = std::function<void(bool success, const std::vector<std::shared_ptr<Node>>& nodes)>;
 typedef void (*DoneCallbackRaw)(bool, std::vector<std::shared_ptr<Node>>*, void *user_data);
 typedef void (*ShutdownCallbackRaw)(void *user_data);
 typedef void (*DoneCallbackSimpleRaw)(bool, void *user_data);
+typedef bool (*FilterRaw)(const Value&, void *user_data);
 
 using DoneCallbackSimple = std::function<void(bool success)>;
 
-ShutdownCallback bindShutdownCb(ShutdownCallbackRaw shutdown_cb_raw, void* user_data);
-DoneCallback bindDoneCb(DoneCallbackSimple donecb);
-DoneCallback bindDoneCb(DoneCallbackRaw raw_cb, void* user_data);
-DoneCallbackSimple bindDoneCbSimple(DoneCallbackSimpleRaw raw_cb, void* user_data);
+OPENDHT_PUBLIC ShutdownCallback bindShutdownCb(const ShutdownCallbackRaw& shutdown_cb_raw, void* user_data);
+OPENDHT_PUBLIC DoneCallback bindDoneCb(DoneCallbackSimple donecb);
+OPENDHT_PUBLIC DoneCallback bindDoneCb(const DoneCallbackRaw& raw_cb, void* user_data);
+OPENDHT_PUBLIC DoneCallbackSimple bindDoneCbSimple(const DoneCallbackSimpleRaw& raw_cb, void* user_data);
+OPENDHT_PUBLIC Value::Filter bindFilterRaw(const FilterRaw& raw_filter, void* user_data);
 
 }

include/opendht/crypto.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -13,14 +13,14 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
 
 #include "infohash.h"
 #include "utils.h"
+#include "rng.h"
 
 extern "C" {
 #include <gnutls/gnutls.h>
@@ -36,9 +36,13 @@ extern "C" {
 #endif
 
 namespace dht {
+
+/**
+ * Contains all crypto primitives
+ */
 namespace crypto {
 
-class CryptoException : public std::runtime_error {
+class OPENDHT_PUBLIC CryptoException : public std::runtime_error {
     public:
         CryptoException(const std::string& str) : std::runtime_error(str) {};
 };
@@ -46,22 +50,23 @@ class CryptoException : public std::runtime_error {
 /**
  * Exception thrown when a decryption error happened.
  */
-class DecryptError : public CryptoException {
+class OPENDHT_PUBLIC DecryptError : public CryptoException {
     public:
         DecryptError(const std::string& str = "") : CryptoException(str) {};
 };
 
 struct PrivateKey;
 struct Certificate;
+class RevocationList;
 
 using Identity = std::pair<std::shared_ptr<PrivateKey>, std::shared_ptr<Certificate>>;
 
 /**
  * A public key.
  */
-struct PublicKey
+struct OPENDHT_PUBLIC PublicKey
 {
-    PublicKey() {}
+    PublicKey();
 
     /**
      * Takes ownership of an existing gnutls_pubkey.
@@ -81,13 +86,24 @@ struct PublicKey
 
     PublicKey& operator=(PublicKey&& o) noexcept;
 
+    /**
+     * Get public key fingerprint
+     */
     InfoHash getId() const;
+
+    /**
+     * Get public key long fingerprint
+     */
+    PkId getLongId() const;
+
     bool checkSignature(const Blob& data, const Blob& signature) const;
     Blob encrypt(const Blob&) const;
 
     void pack(Blob& b) const;
     void unpack(const uint8_t* dat, size_t dat_size);
 
+    std::string toString() const;
+
     template <typename Packer>
     void msgpack_pack(Packer& p) const
     {
@@ -99,7 +115,9 @@ struct PublicKey
 
     void msgpack_unpack(msgpack::object o);
 
-    gnutls_pubkey_t pk {};
+    gnutls_digest_algorithm_t getPreferredDigest() const;
+
+    gnutls_pubkey_t pk {nullptr};
 private:
     PublicKey(const PublicKey&) = delete;
     PublicKey& operator=(const PublicKey&) = delete;
@@ -109,7 +127,7 @@ private:
 /**
  * A private key, including the corresponding public key.
  */
-struct PrivateKey
+struct OPENDHT_PUBLIC PrivateKey
 {
     PrivateKey();
     //PrivateKey(gnutls_privkey_t k) : key(k) {}
@@ -125,6 +143,7 @@ struct PrivateKey
     PrivateKey(const Blob& import, const std::string& password = {});
     ~PrivateKey();
     explicit operator bool() const { return key; }
+
     PublicKey getPublicKey() const;
     Blob serialize(const std::string& password = {}) const;
 
@@ -148,6 +167,7 @@ struct PrivateKey
      *      Recommended values: 4096, 8192
      */
     static PrivateKey generate(unsigned key_length = 4096);
+    static PrivateKey generateEC();
 
     gnutls_privkey_t key {};
     gnutls_x509_privkey_t x509_key {};
@@ -159,13 +179,125 @@ private:
     //friend dht::crypto::Identity dht::crypto::generateIdentity(const std::string&, dht::crypto::Identity, unsigned key_length);
 };
 
-struct Certificate {
-    Certificate() {}
+
+class OPENDHT_PUBLIC RevocationList
+{
+    using clock = std::chrono::system_clock;
+    using time_point = clock::time_point;
+    using duration = clock::duration;
+public:
+    RevocationList();
+    RevocationList(const Blob& b);
+    RevocationList(RevocationList&& o) noexcept : crl(o.crl) { o.crl = nullptr; }
+    ~RevocationList();
+
+    RevocationList& operator=(RevocationList&& o) { crl = o.crl; o.crl = nullptr; return *this; }
+
+    void pack(Blob& b) const;
+    void unpack(const uint8_t* dat, size_t dat_size);
+    Blob getPacked() const {
+        Blob b;
+        pack(b);
+        return b;
+    }
+
+    template <typename Packer>
+    void msgpack_pack(Packer& p) const
+    {
+        Blob b = getPacked();
+        p.pack_bin(b.size());
+        p.pack_bin_body((const char*)b.data(), b.size());
+    }
+
+    void msgpack_unpack(msgpack::object o);
+
+    void revoke(const Certificate& crt, time_point t = time_point::min());
+
+    bool isRevoked(const Certificate& crt) const;
+
+    /**
+     * Sign this revocation list using provided key and certificate.
+     * Validity_period sets the duration until next update (default to no next update).
+     */
+    void sign(const PrivateKey&, const Certificate&, duration validity_period = {});
+    void sign(const Identity& id) { sign(*id.first, *id.second); }
+
+    bool isSignedBy(const Certificate& issuer) const;
+
+    std::string toString() const;
+
+    /**
+     * Read the CRL number extension field.
+     */
+    Blob getNumber() const;
+
+    /** Read CRL issuer Common Name (CN) */
+    std::string getIssuerName() const;
+
+    /** Read CRL issuer User ID (UID) */
+    std::string getIssuerUID() const;
+
+    time_point getUpdateTime() const;
+    time_point getNextUpdateTime() const;
+
+    gnutls_x509_crl_t get() { return crl; }
+    gnutls_x509_crl_t getCopy() const {
+        if (not crl)
+            return nullptr;
+        auto copy = RevocationList(getPacked());
+        gnutls_x509_crl_t ret = copy.crl;
+        copy.crl = nullptr;
+        return ret;
+    }
+
+private:
+    gnutls_x509_crl_t crl {};
+    RevocationList(const RevocationList&) = delete;
+    RevocationList& operator=(const RevocationList&) = delete;
+};
+
+enum class NameType { UNKNOWN = 0, RFC822, DNS, URI, IP };
+
+class OPENDHT_PUBLIC CertificateRequest {
+public:
+    CertificateRequest();
+    CertificateRequest(const uint8_t* data, size_t size);
+    CertificateRequest(const Blob& data) : CertificateRequest(data.data(), data.size()) {}
+
+    CertificateRequest(CertificateRequest&& o) noexcept : request(std::move(o.request)) {
+        o.request = nullptr;
+    }
+    CertificateRequest& operator=(CertificateRequest&& o) noexcept;
+
+    ~CertificateRequest();
+
+    void setName(const std::string& name);
+    void setUID(const std::string& name);
+    void setAltName(NameType type, const std::string& name);
+
+    std::string getName() const;
+    std::string getUID() const;
+
+    void sign(const PrivateKey& key, const std::string& password = {});
+
+    bool verify() const;
+
+    Blob pack() const;
+
+    gnutls_x509_crq_t get() const { return request; }
+private:
+    CertificateRequest(const CertificateRequest& o) = delete;
+    CertificateRequest& operator=(const CertificateRequest& o) = delete;
+    gnutls_x509_crq_t request {nullptr};
+};
+
+struct OPENDHT_PUBLIC Certificate {
+    Certificate() noexcept {}
 
     /**
      * Take ownership of existing gnutls structure
      */
-    Certificate(gnutls_x509_crt_t crt) : cert(crt) {}
+    Certificate(gnutls_x509_crt_t crt) noexcept : cert(crt) {}
 
     Certificate(Certificate&& o) noexcept : cert(o.cert), issuer(std::move(o.issuer)) { o.cert = nullptr; };
 
@@ -174,7 +306,10 @@ struct Certificate {
      * ordered from subject to issuer
      */
     Certificate(const Blob& crt);
-    Certificate(const uint8_t* dat, size_t dat_size) {
+    Certificate(const std::string& pem) : cert(nullptr) {
+        unpack((const uint8_t*)pem.data(), pem.size());
+    }
+    Certificate(const uint8_t* dat, size_t dat_size) : cert(nullptr) {
         unpack(dat, dat_size);
     }
 
@@ -278,6 +413,8 @@ struct Certificate {
 
     /** Same as getPublicKey().getId() */
     InfoHash getId() const;
+    /** Same as getPublicKey().getLongId() */
+    PkId getLongId() const;
 
     /** Read certificate Common Name (CN) */
     std::string getName() const;
@@ -291,13 +428,15 @@ struct Certificate {
     /** Read certificate issuer User ID (UID) */
     std::string getIssuerUID() const;
 
-    enum class NameType { UNKNOWN = 0, RFC822, DNS, URI, IP };
-
     /** Read certificate alternative names */
     std::vector<std::pair<NameType, std::string>> getAltNames() const;
 
+    std::chrono::system_clock::time_point getActivation() const;
+    std::chrono::system_clock::time_point getExpiration() const;
+
     /**
-     * Returns true if the certificate is marked as a Certificate Authority.
+     * Returns true if the certificate is marked as a Certificate Authority
+     * and has necessary key usage flags to sign certificates.
      */
     bool isCA() const;
 
@@ -307,15 +446,200 @@ struct Certificate {
      */
     std::string toString(bool chain = true) const;
 
-    static Certificate generate(const PrivateKey& key, const std::string& name = "dhtnode", Identity ca = {}, bool is_ca = false);
+    std::string print() const;
 
-    gnutls_x509_crt_t cert {};
+    /**
+     * As a CA, revoke a certificate, adding it to
+     * the attached Certificate Revocation List (CRL)
+     */
+    void revoke(const PrivateKey&, const Certificate&);
+
+    /**
+     * Get the list of certificates revoked as as CA.
+     */
+    std::vector<std::shared_ptr<RevocationList>> getRevocationLists() const;
+
+    /**
+     * Attach existing revocation list.
+     */
+    void addRevocationList(RevocationList&&);
+    void addRevocationList(std::shared_ptr<RevocationList>);
+
+    static Certificate generate(const PrivateKey& key, const std::string& name = "dhtnode", const Identity& ca = {}, bool is_ca = false);
+    static Certificate generate(const CertificateRequest& request, const Identity& ca);
+
+    gnutls_x509_crt_t getCopy() const {
+        if (not cert)
+            return nullptr;
+        auto copy = Certificate(getPacked());
+        gnutls_x509_crt_t ret = copy.cert;
+        copy.cert = nullptr;
+        return ret;
+    }
+
+    std::vector<gnutls_x509_crt_t>
+    getChain(bool copy = false) const
+    {
+        if (not cert)
+            return {};
+        std::vector<gnutls_x509_crt_t> crts;
+        for (auto c = this; c; c = c->issuer.get())
+            crts.emplace_back(copy ? c->getCopy() : c->cert);
+        return crts;
+    }
+
+    std::pair<
+        std::vector<gnutls_x509_crt_t>,
+        std::vector<gnutls_x509_crl_t>
+    >
+    getChainWithRevocations(bool copy = false) const
+    {
+        if (not cert)
+            return {};
+        std::vector<gnutls_x509_crt_t> crts;
+        std::vector<gnutls_x509_crl_t> crls;
+        for (auto c = this; c; c = c->issuer.get()) {
+            crts.emplace_back(copy ? c->getCopy() : c->cert);
+            crls.reserve(crls.size() + c->revocation_lists.size());
+            for (const auto& crl : c->revocation_lists)
+                crls.emplace_back(copy ? crl->getCopy() : crl->get());
+        }
+        return {crts, crls};
+    }
+
+    gnutls_digest_algorithm_t getPreferredDigest() const;
+
+    gnutls_x509_crt_t cert {nullptr};
     std::shared_ptr<Certificate> issuer {};
 private:
     Certificate(const Certificate&) = delete;
     Certificate& operator=(const Certificate&) = delete;
+
+    struct crlNumberCmp {
+        bool operator() (const std::shared_ptr<RevocationList>& lhs, const std::shared_ptr<RevocationList>& rhs) const {
+            return lhs->getNumber() < rhs->getNumber();
+        }
+    };
+
+    std::set<std::shared_ptr<RevocationList>, crlNumberCmp> revocation_lists;
 };
 
+struct OPENDHT_PUBLIC TrustList
+{
+    struct VerifyResult {
+        int ret;
+        unsigned result;
+        bool hasError() const { return ret < 0; }
+        bool isValid() const { return !hasError() and !(result & GNUTLS_CERT_INVALID); }
+        explicit operator bool() const { return isValid(); }
+        std::string toString() const;
+        OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const VerifyResult& h);
+    };
+
+    TrustList();
+    TrustList(TrustList&& o) noexcept : trust(std::move(o.trust)) {
+        o.trust = nullptr;
+    }
+    TrustList& operator=(TrustList&& o) noexcept;
+    ~TrustList();
+    void add(const Certificate& crt);
+    void add(const RevocationList& crl);
+    void remove(const Certificate& crt, bool parents = true);
+    VerifyResult verify(const Certificate& crt) const;
+
+private:
+    TrustList(const TrustList& o) = delete;
+    TrustList& operator=(const TrustList& o) = delete;
+    gnutls_x509_trust_list_t trust {nullptr};
+};
+
+template <class T>
+class OPENDHT_PUBLIC secure_vector
+{
+public:
+    secure_vector() {}
+    secure_vector(secure_vector<T> const&) = default;
+    secure_vector(secure_vector<T> &&) = default;
+    explicit secure_vector(unsigned size): data_(size) {}
+    explicit secure_vector(unsigned size, T _item): data_(size, _item) {}
+    explicit secure_vector(const std::vector<T>& c): data_(c) {}
+    secure_vector(std::vector<T>&& c): data_(std::move(c)) {}
+    ~secure_vector() { clean(); }
+
+    static secure_vector<T> getRandom(size_t size) {
+        secure_vector<T> ret(size);
+        crypto::random_device rdev;
+#ifdef _WIN32
+        std::uniform_int_distribution<int> rand_byte{ 0, std::numeric_limits<uint8_t>::max() };
+#else
+        std::uniform_int_distribution<uint8_t> rand_byte;
+#endif
+        std::generate_n((uint8_t*)ret.data_.data(), ret.size()*sizeof(T), std::bind(rand_byte, std::ref(rdev)));
+        return ret;
+    }
+    secure_vector<T>& operator=(const secure_vector<T>& c) {
+        if (&c == this)
+            return *this;
+        clean();
+        data_ = c.data_;
+        return *this;
+    }
+    secure_vector<T>& operator=(secure_vector<T>&& c) {
+        if (&c == this)
+            return *this;
+        clean();
+        data_ = std::move(c.data_);
+        return *this;
+    }
+    secure_vector<T>& operator=(std::vector<T>&& c) {
+        clean();
+        data_ = std::move(c);
+        return *this;
+    }
+    std::vector<T>& writable() { clean(); return data_; }
+    const std::vector<T>& makeInsecure() const { return data_; }
+    const uint8_t* data() const { return data_.data(); }
+
+    void clean() {
+        clean(data_.begin(), data_.end());
+    }
+
+    void clear() { clean(); data_.clear(); }
+
+    size_t size() const { return data_.size(); }
+    bool empty() const { return data_.empty(); }
+
+    void swap(secure_vector<T>& other) { data_.swap(other.data_); }
+    void resize(size_t s) {
+        if (s == data_.size()) return;
+        if (s < data_.size()) {
+            //shrink
+            clean(data_.begin()+s, data_.end());
+            data_.resize(s);
+        } else {
+            //grow
+            auto data = std::move(data_); // move protected data
+            clear();
+            data_.resize(s);
+            std::copy(data.begin(), data.end(), data_.begin());
+            clean(data.begin(), data.end());
+        }
+    }
+
+private:
+    /**
+     * Securely wipe memory
+     */
+    static void clean(const typename std::vector<T>::iterator& i, const typename std::vector<T>::iterator& j) {
+        volatile uint8_t* b = reinterpret_cast<uint8_t*>(&*i);
+        volatile uint8_t* e = reinterpret_cast<uint8_t*>(&*j);
+        std::fill(b, e, 0);
+    }
+
+    std::vector<T> data_;
+};
+
+using SecureBlob = secure_vector<uint8_t>;
 
 /**
  * Generate an RSA key pair (4096 bits) and a certificate.
@@ -324,14 +648,24 @@ private:
  *           If not set, the generated certificate will be a self-signed CA.
  * @param key_length stength of the generated private key (bits).
  */
-Identity generateIdentity(const std::string& name, Identity ca, unsigned key_length, bool is_ca);
-Identity generateIdentity(const std::string& name = "dhtnode", Identity ca = {}, unsigned key_length = 4096);
+OPENDHT_PUBLIC Identity generateIdentity(const std::string& name, const Identity& ca, unsigned key_length, bool is_ca);
+OPENDHT_PUBLIC Identity generateIdentity(const std::string& name = "dhtnode", const Identity& ca = {}, unsigned key_length = 4096);
+
+OPENDHT_PUBLIC Identity generateEcIdentity(const std::string& name, const Identity& ca, bool is_ca);
+OPENDHT_PUBLIC Identity generateEcIdentity(const std::string& name = "dhtnode", const Identity& ca = {});
 
 
 /**
- * SHA512
+ * Performs SHA512, SHA256 or SHA1, depending on hash_length.
+ * Attempts to choose an hash function with
+ * output size of at least hash_length bytes, Current implementation
+ * will use SHA1 for hash_length up to 20 bytes,
+ * will use SHA256 for hash_length up to 32 bytes,
+ * will use SHA512 for hash_length of 33 bytes and more.
  */
-Blob hash(const Blob& data);
+OPENDHT_PUBLIC Blob hash(const Blob& data, size_t hash_length = 512/8);
+
+OPENDHT_PUBLIC void hash(const uint8_t* data, size_t data_length, uint8_t* hash, size_t hash_length);
 
 /**
  * Generates an encryption key from a text password,
@@ -340,19 +674,19 @@ Blob hash(const Blob& data);
  * that can be transmitted in clear, and will be generated if
  * not provided (32 bytes).
  */
-Blob stretchKey(const std::string& password, Blob& salt);
+OPENDHT_PUBLIC Blob stretchKey(const std::string& password, Blob& salt, size_t key_length = 512/8);
 
 /**
  * AES-GCM encryption. Key must be 128, 192 or 256 bits long (16, 24 or 32 bytes).
  */
-Blob aesEncrypt(const Blob& data, const Blob& key);
-Blob aesEncrypt(const Blob& data, const std::string& password);
+OPENDHT_PUBLIC Blob aesEncrypt(const Blob& data, const Blob& key);
+OPENDHT_PUBLIC Blob aesEncrypt(const Blob& data, const std::string& password);
 
 /**
  * AES-GCM decryption.
  */
-Blob aesDecrypt(const Blob& data, const Blob& key);
-Blob aesDecrypt(const Blob& data, const std::string& password);
+OPENDHT_PUBLIC Blob aesDecrypt(const Blob& data, const Blob& key);
+OPENDHT_PUBLIC Blob aesDecrypt(const Blob& data, const std::string& password);
 
 }
 }

include/opendht/def.h

@@ -0,0 +1,28 @@
+#pragma once
+
+// Generic helper definitions for shared library support
+#if defined _WIN32 || defined __CYGWIN__
+  #define OPENDHT_IMPORT __declspec(dllimport)
+  #define OPENDHT_EXPORT __declspec(dllexport)
+  #define OPENDHT_HIDDEN
+#else
+  #define OPENDHT_IMPORT __attribute__ ((visibility ("default")))
+  #define OPENDHT_EXPORT __attribute__ ((visibility ("default")))
+  #define OPENDHT_HIDDEN __attribute__ ((visibility ("hidden")))
+#endif
+
+// Now we use the generic helper definitions above to define OPENDHT_PUBLIC and OPENDHT_LOCAL.
+// OPENDHT_PUBLIC is used for the public API symbols. It either DLL imports or DLL exports (or does nothing for static build)
+// OPENDHT_LOCAL is used for non-api symbols.
+
+#ifdef opendht_EXPORTS // defined if OpenDHT is compiled as a shared library
+  #ifdef OPENDHT_BUILD // defined if we are building the OpenDHT shared library (instead of using it)
+    #define OPENDHT_PUBLIC OPENDHT_EXPORT
+  #else
+    #define OPENDHT_PUBLIC OPENDHT_IMPORT
+  #endif // OPENDHT_BUILD
+  #define OPENDHT_LOCAL OPENDHT_HIDDEN
+#else // opendht_EXPORTS is not defined: this means OpenDHT is a static lib.
+  #define OPENDHT_PUBLIC
+  #define OPENDHT_LOCAL
+#endif // opendht_EXPORTS

include/opendht/default_types.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -13,13 +13,13 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
 
 #include "value.h"
+#include "sockaddr.h"
 
 namespace dht {
 enum class ImStatus : uint8_t {
@@ -29,16 +29,16 @@ enum class ImStatus : uint8_t {
     READ
 };
 }
-MSGPACK_ADD_ENUM(dht::ImStatus);
+MSGPACK_ADD_ENUM(dht::ImStatus)
 
 namespace dht {
 
-class DhtMessage : public Value::Serializable<DhtMessage>
+class OPENDHT_PUBLIC DhtMessage : public Value::Serializable<DhtMessage>
 {
 public:
     static const ValueType TYPE;
 
-    DhtMessage(std::string s = {}, Blob msg = {}) : service(s), data(msg) {}
+    DhtMessage(const std::string& s = {}, const Blob& msg = {}) : service(s), data(msg) {}
 
     std::string getService() const {
         return service;
@@ -46,20 +46,20 @@ public:
 
     static Value::Filter getFilter() { return {}; }
 
-    static bool storePolicy(InfoHash key, std::shared_ptr<Value>& value, InfoHash from, const sockaddr* from_addr, socklen_t from_len);
+    static bool storePolicy(InfoHash key, std::shared_ptr<Value>& value, const InfoHash& from, const SockAddr&);
 
-    static Value::Filter ServiceFilter(std::string s);
+    static Value::Filter ServiceFilter(const std::string& s);
 
     /** print value for debugging */
     friend std::ostream& operator<< (std::ostream&, const DhtMessage&);
 
     std::string service;
     Blob data;
-    MSGPACK_DEFINE(service, data);
+    MSGPACK_DEFINE(service, data)
 };
 
 template <typename T>
-class SignedValue : public Value::Serializable<T>
+class OPENDHT_PUBLIC SignedValue : public Value::Serializable<T>
 {
 private:
     using BaseClass = Value::Serializable<T>;
@@ -79,7 +79,7 @@ public:
 };
 
 template <typename T>
-class EncryptedValue : public SignedValue<T>
+class OPENDHT_PUBLIC EncryptedValue : public SignedValue<T>
 {
 public:
     using BaseClass = SignedValue<T>;
@@ -93,7 +93,7 @@ public:
     static Value::Filter getFilter() {
         return Value::Filter::chain(
             BaseClass::getFilter(),
-            [](const Value& v){ return v.recipient != InfoHash(); }
+            [](const Value& v) { return static_cast<bool>(v.recipient); }
         );
     }
 
@@ -103,7 +103,7 @@ public:
 
 
 
-class ImMessage : public SignedValue<ImMessage>
+class OPENDHT_PUBLIC ImMessage : public SignedValue<ImMessage>
 {
 private:
     using BaseClass = SignedValue<ImMessage>;
@@ -114,6 +114,8 @@ public:
     ImMessage() {}
     ImMessage(dht::Value::Id id, std::string&& m, long d = 0)
         : id(id), msg(std::move(m)), date(d) {}
+    ImMessage(dht::Value::Id id, std::string&& dt, std::string&& m, long d = 0)
+        : id(id), msg(std::move(m)), datatype(std::move(dt)), date(d) {}
 
     virtual void unpackValue(const Value& v) override {
         to = v.recipient;
@@ -121,15 +123,16 @@ public:
     }
 
     dht::InfoHash to;
-    dht::Value::Id id;
+    dht::Value::Id id {0};
     std::string msg;
+    std::string datatype;
     long date {0};
     ImStatus status {ImStatus::NONE};
 
-    MSGPACK_DEFINE_MAP(id, msg, date, status);
+    MSGPACK_DEFINE_MAP(id, msg, date, status, datatype)
 };
 
-class TrustRequest : public EncryptedValue<TrustRequest>
+class OPENDHT_PUBLIC TrustRequest : public EncryptedValue<TrustRequest>
 {
 private:
     using BaseClass = EncryptedValue<TrustRequest>;
@@ -147,10 +150,11 @@ public:
 
     std::string service;
     Blob payload;
-    MSGPACK_DEFINE(service, payload);
+    bool confirm {false};
+    MSGPACK_DEFINE_MAP(service, payload, confirm)
 };
 
-class IceCandidates : public EncryptedValue<IceCandidates>
+class OPENDHT_PUBLIC IceCandidates : public EncryptedValue<IceCandidates>
 {
 private:
     using BaseClass = EncryptedValue<IceCandidates>;
@@ -175,7 +179,7 @@ public:
         pk.pack_bin_body((const char*)ice_data.data(), ice_data.size());
 #else
         // hack for backward compatibility with old opendht compiled with msgpack 1.0
-        // remove when enough people have moved to new versions 
+        // remove when enough people have moved to new versions
         pk.pack_array(ice_data.size());
         for (uint8_t b : ice_data)
             pk.pack(b);
@@ -190,13 +194,13 @@ public:
         ice_data = unpackBlob(o.via.array.ptr[1]);
     }
 
-    Value::Id id;
+    Value::Id id {0};
     Blob ice_data;
 };
 
 /* "Peer" announcement
  */
-class IpServiceAnnouncement : public Value::Serializable<IpServiceAnnouncement>
+class OPENDHT_PUBLIC IpServiceAnnouncement : public Value::Serializable<IpServiceAnnouncement>
 {
 private:
     using BaseClass = Value::Serializable<IpServiceAnnouncement>;
@@ -204,15 +208,12 @@ private:
 public:
     static const ValueType TYPE;
 
-    IpServiceAnnouncement(in_port_t p = 0) {
-        ss.ss_family = 0;
-        setPort(p);
+    IpServiceAnnouncement(sa_family_t family = AF_UNSPEC, in_port_t p = 0) {
+        addr.setFamily(family);
+        addr.setPort(p);
     }
 
-    IpServiceAnnouncement(const sockaddr* sa, socklen_t sa_len) {
-        if (sa)
-            std::copy_n((const uint8_t*)sa, sa_len, (uint8_t*)&ss);
-    }
+    IpServiceAnnouncement(const SockAddr& sa) : addr(sa) {}
 
     IpServiceAnnouncement(const Blob& b) {
         msgpack_unpack(unpackMsg(b).get());
@@ -221,58 +222,45 @@ public:
     template <typename Packer>
     void msgpack_pack(Packer& pk) const
     {
-        pk.pack_array(2);
-        pk.pack(getPort());
-        if (ss.ss_family == AF_INET) {
-            pk.pack_bin(sizeof(in_addr));
-            pk.pack_bin_body((const char*)&reinterpret_cast<const sockaddr_in*>(&ss)->sin_addr, sizeof(in_addr));
-        } else if (ss.ss_family == AF_INET6) {
-            pk.pack_bin(sizeof(in6_addr));
-            pk.pack_bin_body((const char*)&reinterpret_cast<const sockaddr_in6*>(&ss)->sin6_addr, sizeof(in6_addr));
-        }
+        pk.pack_bin(addr.getLength());
+        pk.pack_bin_body((const char*)addr.get(), addr.getLength());
     }
 
     virtual void msgpack_unpack(msgpack::object o)
     {
-        if (o.type != msgpack::type::ARRAY) throw msgpack::type_error();
-        if (o.via.array.size < 2) throw msgpack::type_error();
-        setPort(o.via.array.ptr[0].as<in_port_t>());
-        auto ip_dat = o.via.array.ptr[1].as<Blob>();
-        if (ip_dat.size() == sizeof(in_addr))
-            std::copy(ip_dat.begin(), ip_dat.end(), (char*)&reinterpret_cast<sockaddr_in*>(&ss)->sin_addr);
-        else if (ip_dat.size() == sizeof(in6_addr))
-            std::copy(ip_dat.begin(), ip_dat.end(), (char*)&reinterpret_cast<sockaddr_in6*>(&ss)->sin6_addr);
+        if (o.type == msgpack::type::BIN)
+            addr = {(sockaddr*)o.via.bin.ptr, (socklen_t)o.via.bin.size};
         else
             throw msgpack::type_error();
     }
 
     in_port_t getPort() const {
-        return ntohs(reinterpret_cast<const sockaddr_in*>(&ss)->sin_port);
+        return addr.getPort();
     }
     void setPort(in_port_t p) {
-        reinterpret_cast<sockaddr_in*>(&ss)->sin_port = htons(p);
+        addr.setPort(p);
     }
 
-    sockaddr_storage getPeerAddr() const {
-        return ss;
+    const SockAddr& getPeerAddr() const {
+        return addr;
     }
 
     virtual const ValueType& getType() const {
         return TYPE;
     }
 
-    static bool storePolicy(InfoHash, std::shared_ptr<Value>&, InfoHash, const sockaddr*, socklen_t);
+    static bool storePolicy(InfoHash, std::shared_ptr<Value>&, const InfoHash&, const SockAddr&);
 
     /** print value for debugging */
     friend std::ostream& operator<< (std::ostream&, const IpServiceAnnouncement&);
 
 private:
-    sockaddr_storage ss;
+    SockAddr addr;
 };
 
 
-extern const std::array<std::reference_wrapper<const ValueType>, 5> DEFAULT_TYPES;
+OPENDHT_PUBLIC extern const std::array<std::reference_wrapper<const ValueType>, 5> DEFAULT_TYPES;
 
-extern const std::array<std::reference_wrapper<const ValueType>, 1> DEFAULT_INSECURE_TYPES;
+OPENDHT_PUBLIC extern const std::array<std::reference_wrapper<const ValueType>, 1> DEFAULT_INSECURE_TYPES;
 
 }

include/opendht/dht.h

@@ -1,7 +1,8 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
- *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
- *              Simon Désaulniers <sim.desaulniers@gmail.com>
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
+ *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -14,11 +15,9 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
-
 #pragma once
 
 #include "infohash.h"
@@ -28,15 +27,13 @@
 #include "scheduler.h"
 #include "routing_table.h"
 #include "callbacks.h"
+#include "dht_interface.h"
 
 #include <string>
 #include <array>
 #include <vector>
 #include <map>
-#include <list>
-#include <queue>
 #include <functional>
-#include <algorithm>
 #include <memory>
 
 #ifdef _WIN32
@@ -45,7 +42,15 @@
 
 namespace dht {
 
+namespace net {
 struct Request;
+} /* namespace net */
+
+struct Storage;
+struct ValueStorage;
+class StorageBucket;
+struct Listener;
+struct LocalListener;
 
 /**
  * Main Dht class.
@@ -54,42 +59,36 @@ struct Request;
  * Must be given open UDP sockets and ::periodic must be
  * called regularly.
  */
-class Dht {
+class OPENDHT_PUBLIC Dht final : public DhtInterface {
 public:
 
-    // [[deprecated]]
-    using NodeExport = dht::NodeExport;
-
-    // [[deprecated]]
-    using Status = NodeStatus;
-
     Dht();
 
     /**
      * Initialise the Dht with two open sockets (for IPv4 and IP6)
      * and an ID for the node.
      */
-    Dht(int s, int s6, Config config);
+    Dht(const int& s, const int& s6, const Config& config);
     virtual ~Dht();
 
     /**
      * Get the ID of the node.
      */
-    inline const InfoHash& getNodeId() const { return myid; }
+    inline const InfoHash& getNodeId() const override { return myid; }
 
     /**
      * Get the current status of the node for the given family.
      */
-    NodeStatus getStatus(sa_family_t af) const;
+    NodeStatus getStatus(sa_family_t af) const override;
 
-    NodeStatus getStatus() const {
+    NodeStatus getStatus() const override {
         return std::max(getStatus(AF_INET), getStatus(AF_INET6));
     }
 
     /**
      * Performs final operations before quitting.
      */
-    void shutdown(ShutdownCallback cb);
+    void shutdown(ShutdownCallback cb) override;
 
     /**
      * Returns true if the node is running (have access to an open socket).
@@ -97,19 +96,13 @@ public:
      *  af: address family. If non-zero, will return true if the node
      *      is running for the provided family.
      */
-    bool isRunning(sa_family_t af = 0) const;
+    bool isRunning(sa_family_t af = 0) const override;
 
-    /**
-     * Enable or disable logging of DHT internal messages
-     */
-    void setLoggers(LogMethod error = NOLOG, LogMethod warn = NOLOG, LogMethod debug = NOLOG);
-
-    virtual void registerType(const ValueType& type) {
-        types[type.id] = type;
+    virtual void registerType(const ValueType& type) override {
+        types.registerType(type);
     }
-    const ValueType& getType(ValueType::Id type_id) const {
-        const auto& t_it = types.find(type_id);
-        return (t_it == types.end()) ? ValueType::USER_DATA : t_it->second;
+    const ValueType& getType(ValueType::Id type_id) const override {
+        return types.getType(type_id);
     }
 
     /**
@@ -117,14 +110,20 @@ public:
      * The node is not pinged, so this should be
      * used to bootstrap efficiently from previously known nodes.
      */
-    bool insertNode(const InfoHash& id, const sockaddr*, socklen_t);
-    bool insertNode(const NodeExport& n) {
-        return insertNode(n.id, reinterpret_cast<const sockaddr*>(&n.ss), n.sslen);
+    void insertNode(const InfoHash& id, const SockAddr&) override;
+    void insertNode(const InfoHash& id, const sockaddr* sa, socklen_t salen) override {
+        insertNode(id, SockAddr(sa, salen));
+    }
+    void insertNode(const NodeExport& n) override {
+        insertNode(n.id, SockAddr(n.ss, n.sslen));
     }
 
-    int pingNode(const sockaddr*, socklen_t);
+    void pingNode(const sockaddr*, socklen_t, DoneCallbackSimple&& cb={}) override;
 
-    time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr *from, socklen_t fromlen);
+    time_point periodic(const uint8_t *buf, size_t buflen, const SockAddr&) override;
+    time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen) override {
+        return periodic(buf, buflen, SockAddr(from, fromlen));
+    }
 
     /**
      * Get a value by searching on all available protocols (IPv4, IPv6),
@@ -133,50 +132,60 @@ public:
      * @param cb a function called when new values are found on the network.
      *           It should return false to stop the operation.
      * @param donecb a function called when the operation is complete.
-                        cb and donecb won't be called again afterward.
+                     cb and donecb won't be called again afterward.
      * @param f a filter function used to prefilter values.
      */
-    virtual void get(const InfoHash& key, GetCallback cb, DoneCallback donecb={}, Value::Filter&& f={});
-    virtual void get(const InfoHash& key, GetCallback cb, DoneCallbackSimple donecb={}, Value::Filter&& f={}) {
-        get(key, cb, bindDoneCb(donecb), std::forward<Value::Filter>(f));
+    virtual void get(const InfoHash& key, GetCallback cb, DoneCallback donecb={}, Value::Filter&& f={}, Where&& w = {}) override;
+    virtual void get(const InfoHash& key, GetCallback cb, DoneCallbackSimple donecb={}, Value::Filter&& f={}, Where&& w = {}) override {
+        get(key, cb, bindDoneCb(donecb), std::forward<Value::Filter>(f), std::forward<Where>(w));
     }
-    virtual void get(const InfoHash& key, GetCallbackSimple cb, DoneCallback donecb={}, Value::Filter&& f={}) {
-        get(key, bindGetCb(cb), donecb, std::forward<Value::Filter>(f));
+    virtual void get(const InfoHash& key, GetCallbackSimple cb, DoneCallback donecb={}, Value::Filter&& f={}, Where&& w = {}) override {
+        get(key, bindGetCb(cb), donecb, std::forward<Value::Filter>(f), std::forward<Where>(w));
     }
-    virtual void get(const InfoHash& key, GetCallbackSimple cb, DoneCallbackSimple donecb, Value::Filter&& f={}) {
-        get(key, bindGetCb(cb), bindDoneCb(donecb), std::forward<Value::Filter>(f));
+    virtual void get(const InfoHash& key, GetCallbackSimple cb, DoneCallbackSimple donecb, Value::Filter&& f={}, Where&& w = {}) override {
+        get(key, bindGetCb(cb), bindDoneCb(donecb), std::forward<Value::Filter>(f), std::forward<Where>(w));
+    }
+    /**
+     * Similar to Dht::get, but sends a Query to filter data remotely.
+     * @param key the key for which to query data for.
+     * @param cb a function called when new values are found on the network.
+     *           It should return false to stop the operation.
+     * @param done_cb a function called when the operation is complete.
+                     cb and done_cb won't be called again afterward.
+     * @param q a query used to filter values on the remotes before they send a
+     *          response.
+     */
+    virtual void query(const InfoHash& key, QueryCallback cb, DoneCallback done_cb = {}, Query&& q = {}) override;
+    virtual void query(const InfoHash& key, QueryCallback cb, DoneCallbackSimple done_cb = {}, Query&& q = {}) override {
+        query(key, cb, bindDoneCb(done_cb), std::forward<Query>(q));
     }
 
     /**
      * Get locally stored data for the given hash.
      */
-    std::vector<std::shared_ptr<Value>> getLocal(const InfoHash& key, Value::Filter f = Value::AllFilter()) const;
+    std::vector<Sp<Value>> getLocal(const InfoHash& key, const Value::Filter& f = {}) const override;
 
     /**
      * Get locally stored data for the given key and value id.
      */
-    std::shared_ptr<Value> getLocalById(const InfoHash& key, Value::Id vid) const;
+    Sp<Value> getLocalById(const InfoHash& key, Value::Id vid) const override;
 
     /**
-     * Announce a value on all available protocols (IPv4, IPv6), and
-     * automatically re-announce when it's about to expire.
+     * Announce a value on all available protocols (IPv4, IPv6).
+     *
      * The operation will start as soon as the node is connected to the network.
      * The done callback will be called once, when the first announce succeeds, or fails.
-     *
-     * A "put" operation will never end by itself because the value will need to be
-     * reannounced on a regular basis.
-     * User can call #cancelPut(InfoHash, Value::Id) to cancel a put operation.
      */
     void put(const InfoHash& key,
-            std::shared_ptr<Value>,
+            Sp<Value>,
             DoneCallback cb=nullptr,
             time_point created=time_point::max(),
-            bool permanent = false);
+            bool permanent = false) override;
     void put(const InfoHash& key,
-            const std::shared_ptr<Value>& v,
+            const Sp<Value>& v,
             DoneCallbackSimple cb,
             time_point created=time_point::max(),
-            bool permanent = false)
+            bool permanent = false) override
     {
         put(key, v, bindDoneCb(cb), created, permanent);
     }
@@ -185,7 +194,7 @@ public:
             Value&& v,
             DoneCallback cb=nullptr,
             time_point created=time_point::max(),
-            bool permanent = false)
+            bool permanent = false) override
     {
         put(key, std::make_shared<Value>(std::move(v)), cb, created, permanent);
     }
@@ -193,7 +202,7 @@ public:
             Value&& v,
             DoneCallbackSimple cb,
             time_point created=time_point::max(),
-            bool permanent = false)
+            bool permanent = false) override
     {
         put(key, std::forward<Value>(v), bindDoneCb(cb), created, permanent);
     }
@@ -201,18 +210,18 @@ public:
     /**
      * Get data currently being put at the given hash.
      */
-    std::vector<std::shared_ptr<Value>> getPut(const InfoHash&);
+    std::vector<Sp<Value>> getPut(const InfoHash&) const override;
 
     /**
      * Get data currently being put at the given hash with the given id.
      */
-    std::shared_ptr<Value> getPut(const InfoHash&, const Value::Id&);
+    Sp<Value> getPut(const InfoHash&, const Value::Id&) const override;
 
     /**
      * Stop any put/announce operation at the given location,
      * for the value with the given id.
      */
-    bool cancelPut(const InfoHash&, const Value::Id&);
+    bool cancelPut(const InfoHash&, const Value::Id&) override;
 
     /**
      * Listen on the network for any changes involving a specified hash.
@@ -221,34 +230,53 @@ public:
      *
      * @return a token to cancel the listener later.
      */
-    virtual size_t listen(const InfoHash&, GetCallback, Value::Filter&&={});
-    virtual size_t listen(const InfoHash& key, GetCallbackSimple cb, Value::Filter f={}) {
-        return listen(key, bindGetCb(cb), std::forward<Value::Filter>(f));
+    size_t listen(const InfoHash&, ValueCallback, Value::Filter={}, Where={}) override;
+
+    size_t listen(const InfoHash& key, GetCallback cb, Value::Filter f={}, Where w={}) override {
+        return listen(key, [cb](const std::vector<Sp<Value>>& vals, bool expired){
+            if (not expired)
+                return cb(vals);
+            return true;
+        }, std::forward<Value::Filter>(f), std::forward<Where>(w));
+    }
+    size_t listen(const InfoHash& key, GetCallbackSimple cb, Value::Filter f={}, Where w={}) override {
+        return listen(key, bindGetCb(cb), std::forward<Value::Filter>(f), std::forward<Where>(w));
     }
 
-    virtual bool cancelListen(const InfoHash&, size_t token);
+    bool cancelListen(const InfoHash&, size_t token) override;
 
     /**
      * Inform the DHT of lower-layer connectivity changes.
      * This will cause the DHT to assume a public IP address change.
      * The DHT will recontact neighbor nodes, re-register for listen ops etc.
      */
-    void connectivityChanged();
+    void connectivityChanged(sa_family_t) override;
+    void connectivityChanged() override {
+        reported_addr.clear();
+        connectivityChanged(AF_INET);
+        connectivityChanged(AF_INET6);
+    }
 
     /**
      * Get the list of good nodes for local storage saving purposes
      * The list is ordered to minimize the back-to-work delay.
      */
-    std::vector<NodeExport> exportNodes();
+    std::vector<NodeExport> exportNodes() const override;
 
-    std::vector<ValuesExport> exportValues() const;
-    void importValues(const std::vector<ValuesExport>&);
+    std::vector<ValuesExport> exportValues() const override;
+    void importValues(const std::vector<ValuesExport>&) override;
+
+    void saveState(const std::string& path) const;
+    void loadState(const std::string& path);
+
+    NodeStats getNodesStats(sa_family_t af) const override;
+
+    std::string getStorageLog() const override;
+    std::string getStorageLog(const InfoHash&) const override;
 
-    int getNodesStats(sa_family_t af, unsigned *good_return, unsigned *dubious_return, unsigned *cached_return,
-            unsigned *incoming_return) const;
-    std::string getStorageLog() const;
     std::string getRoutingTablesLog(sa_family_t) const;
     std::string getSearchesLog(sa_family_t) const;
+    std::string getSearchLog(const InfoHash&, sa_family_t af = AF_UNSPEC) const;
 
     void dumpTables() const;
     std::vector<unsigned> getNodeMessageStats(bool in = false) {
@@ -270,10 +298,10 @@ public:
         return {total_store_size, total_values};
     }
 
-    std::vector<Address> getPublicAddress(sa_family_t family = 0);
+    std::vector<SockAddr> getPublicAddress(sa_family_t family = 0) override;
 
-protected:
-    Logger DHT_LOG;
+    void pushNotificationReceived(const std::map<std::string, std::string>&) override {}
+    void resubscribe(unsigned) {}
 
 private:
 
@@ -282,20 +310,27 @@ private:
        the target 8 turn out to be dead. */
     static constexpr unsigned SEARCH_NODES {14};
 
-    /* Concurrent requests during a search */
-    static constexpr unsigned SEARCH_REQUESTS {4};
+    /* The number of bad nodes is limited in order to help determine
+     * presence of connectivity changes. See
+     * https://github.com/savoirfairelinux/opendht/issues/137 for details.
+     *
+     * According to the tables, 25 is a good average value for big networks. If
+     * the network is small, normal search expiration process will handle the
+     * situation.
+     * */
+    static constexpr unsigned SEARCH_MAX_BAD_NODES {25};
+
+    /* Concurrent search nodes requested count */
+    static constexpr unsigned MAX_REQUESTED_SEARCH_NODES {4};
 
     /* Number of listening nodes */
     static constexpr unsigned LISTEN_NODES {4};
 
-    /* The maximum number of values we store for a given hash. */
-    static constexpr unsigned MAX_VALUES {1024};
-
     /* The maximum number of hashes we're willing to track. */
-    static constexpr unsigned MAX_HASHES {16384};
+    static constexpr unsigned MAX_HASHES {64 * 1024};
 
     /* The maximum number of searches we keep data about. */
-    static constexpr unsigned MAX_SEARCHES {2048};
+    static constexpr unsigned MAX_SEARCHES {64 * 1024};
 
     static constexpr std::chrono::minutes MAX_STORAGE_MAINTENANCE_EXPIRE_TIME {10};
 
@@ -305,100 +340,41 @@ private:
     /* Timeout for listen */
     static constexpr std::chrono::seconds LISTEN_EXPIRE_TIME {30};
 
-    static constexpr std::chrono::seconds REANNOUNCE_MARGIN {5};
+    static constexpr std::chrono::seconds REANNOUNCE_MARGIN {10};
 
-    static constexpr size_t TOKEN_SIZE {64};
+    static constexpr size_t TOKEN_SIZE {32};
 
+    // internal structures
     struct SearchNode;
-
-    /**
-     * A single "get" operation data
-     */
-    struct Get {
-        time_point start;
-        Value::Filter filter;
-        GetCallback get_cb;
-        DoneCallback done_cb;
-    };
-
-    /**
-     * A single "put" operation data
-     */
-    struct Announce {
-        bool permanent;
-        std::shared_ptr<Value> value;
-        time_point created;
-        DoneCallback callback;
-    };
-
-    /**
-     * A single "listen" operation data
-     */
-    struct LocalListener {
-        Value::Filter filter;
-        GetCallback get_cb;
-    };
-
-    /**
-     * A search is a list of the nodes we think are responsible
-     * for storing values for a given hash.
-     */
+    struct Get;
+    struct Announce;
     struct Search;
 
-    struct ValueStorage {
-        std::shared_ptr<Value> data {};
-        time_point time {};
-
-        ValueStorage() {}
-        ValueStorage(const std::shared_ptr<Value>& v, time_point t) : data(v), time(t) {}
-    };
-
-    /**
-     * Foreign nodes asking for updates about an InfoHash.
-     */
-    struct Listener {
-        size_t rid {};
-        time_point time {};
-
-        /*constexpr*/ Listener(size_t rid, time_point t) : rid(rid), time(t) {}
-
-        void refresh(size_t tid, time_point t) {
-            rid = tid;
-            time = t;
-        }
-    };
-
-    struct Storage;
-
     // prevent copy
     Dht(const Dht&) = delete;
     Dht& operator=(const Dht&) = delete;
 
     InfoHash myid {};
 
-    std::array<uint8_t, 8> secret {{}};
-    std::array<uint8_t, 8> oldsecret {{}};
+    uint64_t secret {};
+    uint64_t oldsecret {};
 
     // registred types
-    std::map<ValueType::Id, ValueType> types;
-
-    // are we a bootstrap node ?
-    // note: Any running node can be used as a bootstrap node.
-    //       Only nodes running only as bootstrap nodes should
-    //       be put in bootstrap mode.
-    const bool is_bootstrap {false};
+    TypeStore types;
 
     // the stuff
-    RoutingTable buckets {};
+    RoutingTable buckets4 {};
     RoutingTable buckets6 {};
 
-    std::vector<Storage> store;
+    std::map<InfoHash, Storage> store;
+    std::map<SockAddr, StorageBucket, SockAddr::ipCmp> store_quota;
     size_t total_values {0};
     size_t total_store_size {0};
     size_t max_store_size {DEFAULT_STORAGE_LIMIT};
 
-    std::map<InfoHash, std::shared_ptr<Search>> searches4 {};
-    std::map<InfoHash, std::shared_ptr<Search>> searches6 {};
+    using SearchMap = std::map<InfoHash, Sp<Search>>;
+    SearchMap searches4 {};
+    SearchMap searches6 {};
     uint16_t search_id {0};
 
     // map a global listen token to IPv4, IPv6 specific listen tokens.
@@ -407,46 +383,64 @@ private:
     size_t listener_token {1};
 
     // timing
-    Scheduler scheduler {};
-    std::shared_ptr<Scheduler::Job> nextNodesConfirmation {};
-    time_point mybucket_grow_time {time_point::min()}, mybucket6_grow_time {time_point::min()};
+    Scheduler scheduler;
+    Sp<Scheduler::Job> nextNodesConfirmation {};
+    Sp<Scheduler::Job> nextStorageMaintenance {};
 
-    NetworkEngine network_engine;
+    net::NetworkEngine network_engine;
+    unsigned pending_pings4 {0};
+    unsigned pending_pings6 {0};
 
-    using ReportedAddr = std::pair<unsigned, Address>;
+    using ReportedAddr = std::pair<unsigned, SockAddr>;
     std::vector<ReportedAddr> reported_addr;
 
+    std::mt19937_64 rd {crypto::getSeededRandomEngine<std::mt19937_64>()};
+
+    std::string persistPath;
+
+    // are we a bootstrap node ?
+    // note: Any running node can be used as a bootstrap node.
+    //       Only nodes running only as bootstrap nodes should
+    //       be put in bootstrap mode.
+    const bool is_bootstrap {false};
+    const bool maintain_storage {false};
+
     void rotateSecrets();
 
-    Blob makeToken(const sockaddr *sa, bool old) const;
-    bool tokenMatch(const Blob& token, const sockaddr *sa) const;
+    Blob makeToken(const SockAddr&, bool old) const;
+    bool tokenMatch(const Blob& token, const SockAddr&) const;
 
-    void reportedAddr(const sockaddr *sa, socklen_t sa_len);
+    void reportedAddr(const SockAddr&);
 
     // Storage
-    decltype(Dht::store)::iterator findStorage(const InfoHash& id);
-    decltype(Dht::store)::const_iterator findStorage(const InfoHash& id) const;
+    void storageAddListener(const InfoHash& id, const Sp<Node>& node, size_t tid, Query&& = {});
+    bool storageStore(const InfoHash& id, const Sp<Value>& value, time_point created, const SockAddr& sa = {}, bool permanent = false);
+    bool storageErase(const InfoHash& id, Value::Id vid);
+    bool storageRefresh(const InfoHash& id, Value::Id vid);
+    void expireStore();
+    void expireStorage(InfoHash h);
+    void expireStore(decltype(store)::iterator);
 
-    void storageAddListener(const InfoHash& id, const std::shared_ptr<Node>& node, size_t tid);
-    bool storageStore(const InfoHash& id, const std::shared_ptr<Value>& value, time_point created);
-    void expireStorage();
-    void storageChanged(Storage& st, ValueStorage&);
+    void storageChanged(const InfoHash& id, Storage& st, ValueStorage&, bool newValue);
+    std::string printStorageLog(const decltype(store)::value_type&) const;
 
     /**
      * For a given storage, if values don't belong there anymore because this
      * node is too far from the target, values are sent to the appropriate
      * nodes.
      */
-    void dataPersistence();
-    size_t maintainStorage(InfoHash id, bool force=false, DoneCallback donecb=nullptr);
+    void dataPersistence(InfoHash id);
+    size_t maintainStorage(decltype(store)::value_type&, bool force=false, const DoneCallback& donecb={});
 
     // Buckets
+    RoutingTable& buckets(sa_family_t af) { return af == AF_INET ? buckets4 : buckets6; }
+    const RoutingTable& buckets(sa_family_t af) const { return af == AF_INET ? buckets4 : buckets6; }
     Bucket* findBucket(const InfoHash& id, sa_family_t af) {
         RoutingTable::iterator b;
         switch (af) {
         case AF_INET:
-            b = buckets.findBucket(id);
-            return b == buckets.end() ? nullptr : &(*b);
+            b = buckets4.findBucket(id);
+            return b == buckets4.end() ? nullptr : &(*b);
         case AF_INET6:
             b = buckets6.findBucket(id);
             return b == buckets6.end() ? nullptr : &(*b);
@@ -459,64 +453,143 @@ private:
     }
 
     void expireBuckets(RoutingTable&);
-    int sendCachedPing(Bucket& b);
+    void sendCachedPing(Bucket& b);
     bool bucketMaintenance(RoutingTable&);
     void dumpBucket(const Bucket& b, std::ostream& out) const;
 
     // Nodes
-    void onNewNode(const std::shared_ptr<Node>& node, int confirm);
-    std::shared_ptr<Node> findNode(const InfoHash& id, sa_family_t af);
-    const std::shared_ptr<Node> findNode(const InfoHash& id, sa_family_t af) const;
-    bool trySearchInsert(const std::shared_ptr<Node>& node);
+    void onNewNode(const Sp<Node>& node, int confirm);
+    const Sp<Node> findNode(const InfoHash& id, sa_family_t af) const;
+    bool trySearchInsert(const Sp<Node>& node);
 
     // Searches
 
-    /**
-     * Low-level method that will perform a search on the DHT for the
-     * specified infohash (id), using the specified IP version (IPv4 or IPv6).
-     * The values can be filtered by an arbitrary provided filter.
-     */
-    std::shared_ptr<Search> search(const InfoHash& id, sa_family_t af, GetCallback = nullptr, DoneCallback = nullptr, Value::Filter = Value::AllFilter());
-    void announce(const InfoHash& id, sa_family_t af, std::shared_ptr<Value> value, DoneCallback callback, time_point created=time_point::max(), bool permanent = false);
-    size_t listenTo(const InfoHash& id, sa_family_t af, GetCallback cb, Value::Filter f = Value::AllFilter());
+    inline SearchMap& searches(sa_family_t af) { return af == AF_INET ? searches4 : searches6; }
+    inline const SearchMap& searches(sa_family_t af) const { return af == AF_INET ? searches4 : searches6; }
 
-    void bootstrapSearch(Search& sr);
-    Search *findSearch(unsigned short tid, sa_family_t af);
+    /**
+     * Low-level method that will perform a search on the DHT for the specified
+     * infohash (id), using the specified IP version (IPv4 or IPv6).
+     */
+    Sp<Search> search(const InfoHash& id, sa_family_t af, GetCallback = {}, QueryCallback = {}, DoneCallback = {}, Value::Filter = {}, const Sp<Query>& q = {});
+
+    void announce(const InfoHash& id, sa_family_t af, Sp<Value> value, DoneCallback callback, time_point created=time_point::max(), bool permanent = false);
+    size_t listenTo(const InfoHash& id, sa_family_t af, ValueCallback cb, Value::Filter f = {}, const Sp<Query>& q = {});
+
+    /**
+     * Refill the search with good nodes if possible.
+     *
+     * @param sr  The search to refill.
+     *
+     * @return the number inserted nodes.
+     */
+    unsigned refill(Search& sr);
     void expireSearches();
 
     void confirmNodes();
     void expire();
 
+    /**
+     * Generic function to execute when a 'get' request has completed.
+     *
+     * @param status  The request passed by the network engine.
+     * @param answer  The answer from the network engine.
+     * @param ws      A weak pointer to the search concerned by the request.
+     * @param query   The query sent to the node.
+     */
+    void searchNodeGetDone(const net::Request& status,
+            net::RequestAnswer&& answer,
+            std::weak_ptr<Search> ws,
+            Sp<Query> query);
+
+    /**
+     * Generic function to execute when a 'get' request expires.
+     *
+     * @param status  The request passed by the network engine.
+     * @param over    Whether we're done to try sending the request to the node
+     *                or not. This lets us mark a node as candidate.
+     * @param ws      A weak pointer to the search concerned by the request.
+     * @param query   The query sent to the node.
+     */
+    void searchNodeGetExpired(const net::Request& status, bool over, std::weak_ptr<Search> ws, Sp<Query> query);
+
+    /**
+     * This method recovers sends individual request for values per id.
+     *
+     * @param ws     A weak pointer to the Search.
+     * @param query  The initial query passed through the API.
+     * @param n      The node to which send the requests.
+     */
+    void paginate(std::weak_ptr<Search> ws, Sp<Query> query, SearchNode* n);
+
     /**
      * If update is true, this method will also send message to synced but non-updated search nodes.
      */
-    SearchNode* searchSendGetValues(std::shared_ptr<Search> sr, SearchNode *n = nullptr, bool update = true);
+    SearchNode* searchSendGetValues(Sp<Search> sr, SearchNode *n = nullptr, bool update = true);
+
+    /**
+     * Forwards an 'announce' request for a list of nodes to the network engine.
+     *
+     * @param sr  The search for which we want to announce a value.
+     * @param announce  The 'announce' structure.
+     */
+    void searchSendAnnounceValue(const Sp<Search>& sr);
+
+    /**
+     * Main process of a Search's operations. This function will demand the
+     * network engine to send requests packets for all pending operations
+     * ('get', 'put' and 'listen').
+     *
+     * @param sr  The search to execute its operations.
+     */
+    void searchStep(Sp<Search>);
+    void searchSynchedNodeListen(const Sp<Search>&, SearchNode&);
 
-    void searchStep(std::shared_ptr<Search> sr);
     void dumpSearch(const Search& sr, std::ostream& out) const;
 
     bool neighbourhoodMaintenance(RoutingTable&);
 
-    void processMessage(const uint8_t *buf, size_t buflen, const sockaddr *from, socklen_t fromlen);
-
-    void onError(std::shared_ptr<Request> node, DhtProtocolException e);
+    void onError(Sp<net::Request> node, net::DhtProtocolException e);
     /* when our address is reported by a distant peer. */
-    void onReportedAddr(const InfoHash& id, sockaddr* sa , socklen_t salen);
+    void onReportedAddr(const InfoHash& id, const SockAddr&);
     /* when we receive a ping request */
-    NetworkEngine::RequestAnswer onPing(std::shared_ptr<Node> node);
+    net::RequestAnswer onPing(Sp<Node> node);
     /* when we receive a "find node" request */
-    NetworkEngine::RequestAnswer onFindNode(std::shared_ptr<Node> node, InfoHash& hash, want_t want);
-    void onFindNodeDone(const Request& status, NetworkEngine::RequestAnswer& a, std::shared_ptr<Search> sr);
+    net::RequestAnswer onFindNode(Sp<Node> node, const InfoHash& hash, want_t want);
+    void onFindNodeDone(const Sp<Node>& status,
+            net::RequestAnswer& a,
+            Sp<Search> sr);
     /* when we receive a "get values" request */
-    NetworkEngine::RequestAnswer onGetValues(std::shared_ptr<Node> node, InfoHash& hash, want_t want);
-    void onGetValuesDone(const Request& status, NetworkEngine::RequestAnswer& a, std::shared_ptr<Search> sr);
+    net::RequestAnswer onGetValues(Sp<Node> node,
+            const InfoHash& hash,
+            want_t want,
+            const Query& q);
+    void onGetValuesDone(const Sp<Node>& status,
+            net::RequestAnswer& a,
+            Sp<Search>& sr,
+            const Sp<Query>& orig_query);
     /* when we receive a listen request */
-    NetworkEngine::RequestAnswer onListen(std::shared_ptr<Node> node, InfoHash& hash, Blob& token, size_t rid);
-    void onListenDone(const Request& status, NetworkEngine::RequestAnswer& a, std::shared_ptr<Search>& sr);
+    net::RequestAnswer onListen(Sp<Node> node,
+            const InfoHash& hash,
+            const Blob& token,
+            size_t socket_id,
+            const Query& query);
+    void onListenDone(const Sp<Node>& status,
+            net::RequestAnswer& a,
+            Sp<Search>& sr);
     /* when we receive an announce request */
-    NetworkEngine::RequestAnswer onAnnounce(std::shared_ptr<Node> node,
-            InfoHash& hash, Blob& token, std::vector<std::shared_ptr<Value>> v, time_point created);
-    void onAnnounceDone(const Request& status, NetworkEngine::RequestAnswer& a, std::shared_ptr<Search>& sr);
+    net::RequestAnswer onAnnounce(Sp<Node> node,
+            const InfoHash& hash,
+            const Blob& token,
+            const std::vector<Sp<Value>>& v,
+            const time_point& created);
+    net::RequestAnswer onRefresh(Sp<Node> node,
+            const InfoHash& hash,
+            const Blob& token,
+            const Value::Id& vid);
+    void onAnnounceDone(const Sp<Node>& status,
+            net::RequestAnswer& a,
+            Sp<Search>& sr);
 };
 
 }

include/opendht/dht_interface.h

@@ -0,0 +1,246 @@
+/*
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "infohash.h"
+#include "log_enable.h"
+
+namespace dht {
+
+class OPENDHT_PUBLIC DhtInterface {
+public:
+    DhtInterface() = default;
+    virtual ~DhtInterface() = default;
+
+    // [[deprecated]]
+    using Status = NodeStatus;
+    // [[deprecated]]
+    using NodeExport = dht::NodeExport;
+
+    /**
+     * Get the current status of the node for the given family.
+     */
+    virtual NodeStatus getStatus(sa_family_t af) const = 0;
+    virtual NodeStatus getStatus() const = 0;
+
+    /**
+     * Get the ID of the DHT node.
+     */
+    virtual const InfoHash& getNodeId() const = 0;
+
+    /**
+     * Performs final operations before quitting.
+     */
+    virtual void shutdown(ShutdownCallback cb) = 0;
+
+    /**
+     * Returns true if the node is running (have access to an open socket).
+     *
+     *  af: address family. If non-zero, will return true if the node
+     *     is running for the provided family.
+     */
+    virtual bool isRunning(sa_family_t af = 0) const = 0;
+
+    virtual void registerType(const ValueType& type) = 0;
+
+    virtual const ValueType& getType(ValueType::Id type_id) const = 0;
+
+    /**
+     * Insert a node in the main routing table.
+     * The node is not pinged, so this should be
+     * used to bootstrap efficiently from previously known nodes.
+     */
+    virtual void insertNode(const InfoHash& id, const SockAddr&) = 0;
+    virtual void insertNode(const InfoHash& id, const sockaddr* sa, socklen_t salen) = 0;
+    virtual void insertNode(const NodeExport& n) = 0;
+
+    virtual void pingNode(const sockaddr*, socklen_t, DoneCallbackSimple&& cb={}) = 0;
+
+    virtual time_point periodic(const uint8_t *buf, size_t buflen, const SockAddr&) = 0;
+    virtual time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen) = 0;
+
+    /**
+     * Get a value by searching on all available protocols (IPv4, IPv6),
+     * and call the provided get callback when values are found at key.
+     * The operation will start as soon as the node is connected to the network.
+     * @param cb a function called when new values are found on the network.
+     *         It should return false to stop the operation.
+     * @param donecb a function called when the operation is complete.
+                  cb and donecb won't be called again afterward.
+     * @param f a filter function used to prefilter values.
+     */
+    virtual void get(const InfoHash& key, GetCallback cb, DoneCallback donecb={}, Value::Filter&& f={}, Where&& w = {}) = 0;
+    virtual void get(const InfoHash& key, GetCallback cb, DoneCallbackSimple donecb={}, Value::Filter&& f={}, Where&& w = {}) = 0;
+    virtual void get(const InfoHash& key, GetCallbackSimple cb, DoneCallback donecb={}, Value::Filter&& f={}, Where&& w = {}) = 0;
+    virtual void get(const InfoHash& key, GetCallbackSimple cb, DoneCallbackSimple donecb, Value::Filter&& f={}, Where&& w = {}) = 0;
+
+    /**
+      * Similar to Dht::get, but sends a Query to filter data remotely.
+      * @param key the key for which to query data for.
+      * @param cb a function called when new values are found on the network.
+      *         It should return false to stop the operation.
+      * @param done_cb a function called when the operation is complete.
+                      cb and done_cb won't be called again afterward.
+      * @param q a query used to filter values on the remotes before they send a
+      *        response.
+      */
+    virtual void query(const InfoHash& key, QueryCallback cb, DoneCallback done_cb = {}, Query&& q = {}) = 0;
+    virtual void query(const InfoHash& key, QueryCallback cb, DoneCallbackSimple done_cb = {}, Query&& q = {}) = 0;
+
+    /**
+     * Get locally stored data for the given hash.
+     */
+    virtual std::vector<Sp<Value>> getLocal(const InfoHash& key, const Value::Filter& f = {}) const = 0;
+
+    /**
+     * Get locally stored data for the given key and value id.
+     */
+    virtual Sp<Value> getLocalById(const InfoHash& key, Value::Id vid) const = 0;
+
+    /**
+     * Announce a value on all available protocols (IPv4, IPv6).
+     *
+     * The operation will start as soon as the node is connected to the network.
+     * The done callback will be called once, when the first announce succeeds, or fails.
+     */
+    virtual void put(const InfoHash& key,
+           Sp<Value>,
+           DoneCallback cb=nullptr,
+           time_point created=time_point::max(),
+           bool permanent = false) = 0;
+    virtual void put(const InfoHash& key,
+           const Sp<Value>& v,
+           DoneCallbackSimple cb,
+           time_point created=time_point::max(),
+           bool permanent = false) = 0;
+    virtual void put(const InfoHash& key,
+           Value&& v,
+           DoneCallback cb=nullptr,
+           time_point created=time_point::max(),
+           bool permanent = false) = 0;
+    virtual void put(const InfoHash& key,
+           Value&& v,
+           DoneCallbackSimple cb,
+           time_point created=time_point::max(),
+           bool permanent = false) = 0;
+
+    /**
+     * Get data currently being put at the given hash.
+     */
+    virtual std::vector<Sp<Value>> getPut(const InfoHash&) const = 0;
+
+    /**
+     * Get data currently being put at the given hash with the given id.
+     */
+    virtual Sp<Value> getPut(const InfoHash&, const Value::Id&) const = 0;
+
+    /**
+     * Stop any put/announce operation at the given location,
+     * for the value with the given id.
+     */
+    virtual bool cancelPut(const InfoHash&, const Value::Id&) = 0;
+
+    /**
+     * Listen on the network for any changes involving a specified hash.
+     * The node will register to receive updates from relevent nodes when
+     * new values are added or removed.
+     *
+     * @return a token to cancel the listener later.
+     */
+    virtual size_t listen(const InfoHash&, GetCallback, Value::Filter={}, Where w = {}) = 0;
+    virtual size_t listen(const InfoHash& key, GetCallbackSimple cb, Value::Filter f={}, Where w = {}) = 0;
+    virtual size_t listen(const InfoHash&, ValueCallback, Value::Filter={}, Where w = {}) = 0;
+
+    virtual bool cancelListen(const InfoHash&, size_t token) = 0;
+
+    /**
+     * Inform the DHT of lower-layer connectivity changes.
+     * This will cause the DHT to assume a public IP address change.
+     * The DHT will recontact neighbor nodes, re-register for listen ops etc.
+     */
+    virtual void connectivityChanged(sa_family_t) = 0;
+    virtual void connectivityChanged() = 0;
+
+    /**
+     * Get the list of good nodes for local storage saving purposes
+     * The list is ordered to minimize the back-to-work delay.
+     */
+    virtual std::vector<NodeExport> exportNodes() const = 0;
+
+    virtual std::vector<ValuesExport> exportValues() const = 0;
+    virtual void importValues(const std::vector<ValuesExport>&) = 0;
+
+    virtual NodeStats getNodesStats(sa_family_t af) const = 0;
+
+    virtual std::string getStorageLog() const = 0;
+    virtual std::string getStorageLog(const InfoHash&) const = 0;
+
+    virtual std::string getRoutingTablesLog(sa_family_t) const = 0;
+    virtual std::string getSearchesLog(sa_family_t) const = 0;
+    virtual std::string getSearchLog(const InfoHash&, sa_family_t af = AF_UNSPEC) const = 0;
+
+    virtual void dumpTables() const = 0;
+    virtual std::vector<unsigned> getNodeMessageStats(bool in = false) = 0;
+
+    /**
+     * Set the in-memory storage limit in bytes
+     */
+    virtual void setStorageLimit(size_t limit = DEFAULT_STORAGE_LIMIT) = 0;
+
+    /**
+     * Returns the total memory usage of stored values and the number
+     * of stored values.
+     */
+    virtual std::pair<size_t, size_t> getStoreSize() const = 0;
+
+    virtual std::vector<SockAddr> getPublicAddress(sa_family_t family = 0) = 0;
+
+    /**
+     * Enable or disable logging of DHT internal messages
+     */
+    virtual void setLoggers(LogMethod error = NOLOG, LogMethod warn = NOLOG, LogMethod debug = NOLOG)
+    {
+        DHT_LOG.DBG = debug;
+        DHT_LOG.WARN = warn;
+        DHT_LOG.ERR = error;
+    }
+
+    /**
+     * Only print logs related to the given InfoHash (if given), or disable filter (if zeroes).
+     */
+    virtual void setLogFilter(const InfoHash& f)
+    {
+        DHT_LOG.setFilter(f);
+    }
+
+    virtual void setPushNotificationToken(const std::string&) {};
+
+    /**
+     * Call linked callback with a push notification
+     * @param notification to process
+     */
+    virtual void pushNotificationReceived(const std::map<std::string, std::string>& data) = 0;
+
+protected:
+    bool logFilerEnable_ {};
+    InfoHash logFiler_ {};
+    Logger DHT_LOG;
+};
+
+} // namespace dht

include/opendht/dht_proxy_client.h

@@ -0,0 +1,387 @@
+/*
+ *  Copyright (C) 2016-2019 Savoir-faire Linux Inc.
+ *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
+ *          Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <functional>
+#include <thread>
+#include <mutex>
+
+#include "callbacks.h"
+#include "def.h"
+#include "dht_interface.h"
+#include "scheduler.h"
+#include "proxy.h"
+
+namespace restbed {
+    class Request;
+}
+
+namespace Json {
+    class Value;
+}
+
+namespace dht {
+
+class OPENDHT_PUBLIC DhtProxyClient final : public DhtInterface {
+public:
+
+    DhtProxyClient();
+
+    explicit DhtProxyClient(std::function<void()> loopSignal, const std::string& serverHost, const std::string& pushClientId = "");
+
+    virtual void setPushNotificationToken(const std::string& token) {
+#ifdef OPENDHT_PUSH_NOTIFICATIONS
+        deviceKey_ = token;
+#else
+        (void) token;
+#endif
+    }
+
+    virtual ~DhtProxyClient();
+
+    /**
+     * Get the ID of the node.
+     */
+    inline const InfoHash& getNodeId() const { return myid; }
+
+    /**
+     * Get the current status of the node for the given family.
+     */
+    NodeStatus getStatus(sa_family_t af) const;
+    NodeStatus getStatus() const {
+        return std::max(getStatus(AF_INET), getStatus(AF_INET6));
+    }
+
+    /**
+     * Performs final operations before quitting.
+     */
+    void shutdown(ShutdownCallback cb);
+
+    /**
+     * Returns true if the node is running (have access to an open socket).
+     *
+     *  af: address family. If non-zero, will return true if the node
+     *      is running for the provided family.
+     */
+    bool isRunning(sa_family_t af = 0) const;
+
+    /**
+     * Get a value by asking the proxy and call the provided get callback when
+     * values are found at key.
+     * The operation will start as soon as the node is connected to the network.
+     * @param cb a function called when new values are found on the network.
+     *           It should return false to stop the operation.
+     * @param donecb a function called when the operation is complete.
+                     cb and donecb won't be called again afterward.
+     * @param f a filter function used to prefilter values.
+     */
+    virtual void get(const InfoHash& key, GetCallback cb, DoneCallback donecb={}, Value::Filter&& f={}, Where&& w = {});
+    virtual void get(const InfoHash& key, GetCallback cb, DoneCallbackSimple donecb={}, Value::Filter&& f={}, Where&& w = {}) {
+        get(key, cb, bindDoneCb(donecb), std::forward<Value::Filter>(f), std::forward<Where>(w));
+    }
+    virtual void get(const InfoHash& key, GetCallbackSimple cb, DoneCallback donecb={}, Value::Filter&& f={}, Where&& w = {}) {
+        get(key, bindGetCb(cb), donecb, std::forward<Value::Filter>(f), std::forward<Where>(w));
+    }
+    virtual void get(const InfoHash& key, GetCallbackSimple cb, DoneCallbackSimple donecb, Value::Filter&& f={}, Where&& w = {}) {
+        get(key, bindGetCb(cb), bindDoneCb(donecb), std::forward<Value::Filter>(f), std::forward<Where>(w));
+    }
+
+    /**
+     * Announce a value on all available protocols (IPv4, IPv6).
+     *
+     * The operation will start as soon as the node is connected to the network.
+     * The done callback will be called once, when the first announce succeeds, or fails.
+     * NOTE: For now, created parameter is ignored.
+     */
+    void put(const InfoHash& key,
+            Sp<Value>,
+            DoneCallback cb=nullptr,
+            time_point created=time_point::max(),
+            bool permanent = false);
+    void put(const InfoHash& key,
+            const Sp<Value>& v,
+            DoneCallbackSimple cb,
+            time_point created=time_point::max(),
+            bool permanent = false)
+    {
+        put(key, v, bindDoneCb(cb), created, permanent);
+    }
+
+    void put(const InfoHash& key,
+            Value&& v,
+            DoneCallback cb=nullptr,
+            time_point created=time_point::max(),
+            bool permanent = false)
+    {
+        put(key, std::make_shared<Value>(std::move(v)), cb, created, permanent);
+    }
+    void put(const InfoHash& key,
+            Value&& v,
+            DoneCallbackSimple cb,
+            time_point created=time_point::max(),
+            bool permanent = false)
+    {
+        put(key, std::forward<Value>(v), bindDoneCb(cb), created, permanent);
+    }
+
+    /**
+     * @param  af the socket family
+     * @return node stats from the proxy
+     */
+    NodeStats getNodesStats(sa_family_t af) const;
+
+    /**
+     * @param  family the socket family
+     * @return public address
+     */
+    std::vector<SockAddr> getPublicAddress(sa_family_t family = 0);
+
+    /**
+     * Listen on the network for any changes involving a specified hash.
+     * The node will register to receive updates from relevent nodes when
+     * new values are added or removed.
+     *
+     * @return a token to cancel the listener later.
+     */
+    virtual size_t listen(const InfoHash&, ValueCallback, Value::Filter={}, Where={});
+
+    virtual size_t listen(const InfoHash& key, GetCallback cb, Value::Filter f={}, Where w={}) {
+        return listen(key, [cb](const std::vector<Sp<Value>>& vals, bool expired){
+            if (not expired)
+                return cb(vals);
+            return true;
+        }, std::forward<Value::Filter>(f), std::forward<Where>(w));
+    }
+    virtual size_t listen(const InfoHash& key, GetCallbackSimple cb, Value::Filter f={}, Where w={}) {
+        return listen(key, bindGetCb(cb), std::forward<Value::Filter>(f), std::forward<Where>(w));
+    }
+    virtual bool cancelListen(const InfoHash& key, size_t token);
+
+    /**
+     * Call linked callback with a push notification
+     * @param notification to process
+     */
+    void pushNotificationReceived(const std::map<std::string, std::string>& notification);
+
+    time_point periodic(const uint8_t*, size_t, const SockAddr&);
+    time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen) {
+        return periodic(buf, buflen, SockAddr(from, fromlen));
+    }
+
+
+    /**
+     * Similar to Dht::get, but sends a Query to filter data remotely.
+     * @param key the key for which to query data for.
+     * @param cb a function called when new values are found on the network.
+     *           It should return false to stop the operation.
+     * @param done_cb a function called when the operation is complete.
+               cb and done_cb won't be called again afterward.
+     * @param q a query used to filter values on the remotes before they send a
+     *          response.
+     */
+    virtual void query(const InfoHash& /*key*/, QueryCallback /*cb*/, DoneCallback /*done_cb*/ = {}, Query&& /*q*/ = {}) { }
+    virtual void query(const InfoHash& key, QueryCallback cb, DoneCallbackSimple done_cb = {}, Query&& q = {}) {
+        query(key, cb, bindDoneCb(done_cb), std::forward<Query>(q));
+    }
+
+    /**
+     * Get data currently being put at the given hash.
+     */
+    std::vector<Sp<Value>> getPut(const InfoHash&) const;
+
+    /**
+     * Get data currently being put at the given hash with the given id.
+     */
+    Sp<Value> getPut(const InfoHash&, const Value::Id&) const;
+
+    /**
+     * Stop any put/announce operation at the given location,
+     * for the value with the given id.
+     */
+    bool cancelPut(const InfoHash&, const Value::Id&);
+
+    void pingNode(const sockaddr*, socklen_t, DoneCallbackSimple&& /*cb*/={}) { }
+
+    virtual void registerType(const ValueType& type) {
+        types.registerType(type);
+    }
+    const ValueType& getType(ValueType::Id type_id) const {
+        return types.getType(type_id);
+    }
+
+    std::vector<Sp<Value>> getLocal(const InfoHash& k, const Value::Filter& filter) const;
+    Sp<Value> getLocalById(const InfoHash& k, Value::Id id) const;
+
+    /**
+     * NOTE: The following methods will not be implemented because the
+     * DhtProxyClient doesn't have any storage nor synchronization process
+     */
+    void insertNode(const InfoHash&, const SockAddr&) { }
+    void insertNode(const InfoHash&, const sockaddr*, socklen_t) { }
+    void insertNode(const NodeExport&) { }
+    std::pair<size_t, size_t> getStoreSize() const { return {}; }
+    std::vector<NodeExport> exportNodes() const { return {}; }
+    std::vector<ValuesExport> exportValues() const { return {}; }
+    void importValues(const std::vector<ValuesExport>&) {}
+    std::string getStorageLog() const { return {}; }
+    std::string getStorageLog(const InfoHash&) const { return {}; }
+    std::string getRoutingTablesLog(sa_family_t) const { return {}; }
+    std::string getSearchesLog(sa_family_t) const { return {}; }
+    std::string getSearchLog(const InfoHash&, sa_family_t) const { return {}; }
+    void dumpTables() const {}
+    std::vector<unsigned> getNodeMessageStats(bool) { return {}; }
+    void setStorageLimit(size_t) {}
+    void connectivityChanged(sa_family_t) {
+        restartListeners();
+    }
+    void connectivityChanged() {
+        getProxyInfos();
+        restartListeners();
+        loopSignal_();
+    }
+
+private:
+    /**
+     * Start the connection with a server.
+     */
+    void startProxy();
+
+    /**
+     * Get informations from the proxy node
+     * @return the JSON returned by the proxy
+     */
+    struct InfoState;
+    void getProxyInfos();
+    void onProxyInfos(const Json::Value& val, sa_family_t family);
+    SockAddr parsePublicAddress(const Json::Value& val);
+
+    void opFailed();
+
+    bool doCancelListen(const InfoHash& key, size_t token);
+
+    struct ListenState;
+    enum class ListenMethod {
+        LISTEN,
+        SUBSCRIBE,
+        RESUBSCRIBE,
+    };
+    void sendListen(const std::shared_ptr<restbed::Request> &request,
+                    const ValueCallback &, const Value::Filter &filter,
+                    const Sp<ListenState> &state,
+                    ListenMethod method = ListenMethod::LISTEN);
+
+    void doPut(const InfoHash&, Sp<Value>, DoneCallback, time_point created, bool permanent);
+
+    /**
+     * Initialize statusIpvX_
+     */
+    void getConnectivityStatus();
+    /**
+     * cancel all Listeners
+     */
+    void cancelAllListeners();
+    /**
+     * cancel all Operations
+     */
+    void cancelAllOperations();
+
+    std::string serverHost_;
+    std::string pushClientId_;
+
+    mutable std::mutex lockCurrentProxyInfos_;
+    NodeStatus statusIpv4_ {NodeStatus::Disconnected};
+    NodeStatus statusIpv6_ {NodeStatus::Disconnected};
+    NodeStats stats4_ {};
+    NodeStats stats6_ {};
+    SockAddr publicAddressV4_;
+    SockAddr publicAddressV6_;
+
+    InfoHash myid {};
+
+    // registred types
+    TypeStore types;
+
+    /**
+     * Store listen requests.
+     */
+    struct Listener;
+    struct ProxySearch;
+
+    size_t listenerToken_ {0};
+    std::map<InfoHash, ProxySearch> searches_;
+    mutable std::mutex searchLock_;
+
+    /**
+     * Store current put and get requests.
+     */
+    struct Operation
+    {
+        std::shared_ptr<restbed::Request> req;
+        std::thread thread;
+        std::shared_ptr<std::atomic_bool> finished;
+    };
+    std::vector<Operation> operations_;
+    std::mutex lockOperations_;
+    /**
+     * Callbacks should be executed in the main thread.
+     */
+    std::vector<std::function<void()>> callbacks_;
+    std::mutex lockCallbacks;
+
+    Sp<InfoState> infoState_;
+    std::thread statusThread_;
+    mutable std::mutex statusLock_;
+
+    Scheduler scheduler;
+    /**
+     * Retrieve if we can connect to the proxy (update statusIpvX_)
+     */
+    void confirmProxy();
+    Sp<Scheduler::Job> nextProxyConfirmation {};
+    Sp<Scheduler::Job> listenerRestart {};
+
+    /**
+     * Relaunch LISTEN requests if the client disconnect/reconnect.
+     */
+    void restartListeners();
+
+    /**
+     * Refresh a listen via a token
+     * @param token
+     */
+    void resubscribe(const InfoHash& key, Listener& listener);
+
+    /**
+     * If we want to use push notifications by default.
+     * NOTE: empty by default to avoid to use services like FCM or APN.
+     */
+    std::string deviceKey_ {};
+
+    const std::function<void()> loopSignal_;
+
+#ifdef OPENDHT_PUSH_NOTIFICATIONS
+    void fillBody(std::shared_ptr<restbed::Request> request, bool resubscribe);
+    void getPushRequest(Json::Value&) const;
+#endif // OPENDHT_PUSH_NOTIFICATIONS
+
+    std::atomic_bool isDestroying_ {false};
+};
+
+}

include/opendht/dht_proxy_server.h

@@ -0,0 +1,318 @@
+/*
+ *  Copyright (C) 2017-2019 Savoir-faire Linux Inc.
+ *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
+ *          Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "callbacks.h"
+#include "def.h"
+#include "infohash.h"
+#include "proxy.h"
+#include "scheduler.h"
+#include "sockaddr.h"
+#include "value.h"
+
+#include <thread>
+#include <memory>
+#include <mutex>
+#include <restbed>
+
+#ifdef OPENDHT_JSONCPP
+#include <json/json.h>
+#endif
+
+namespace Json {
+    class Value;
+}
+
+namespace dht {
+
+class DhtRunner;
+class ThreadPool;
+
+/**
+ * Describes the REST API
+ */
+class OPENDHT_PUBLIC DhtProxyServer
+{
+public:
+    /**
+     * Start the Http server for OpenDHT
+     * @param dht the DhtRunner linked to this proxy server
+     * @param port to listen
+     * @param pushServer where to push notifications
+     * @note if the server fails to start (if port is already used or reserved),
+     * it will fails silently
+     */
+    DhtProxyServer(std::shared_ptr<DhtRunner> dht, in_port_t port = 8000, const std::string& pushServer = "");
+    virtual ~DhtProxyServer();
+
+    DhtProxyServer(const DhtProxyServer& other) = delete;
+    DhtProxyServer(DhtProxyServer&& other) = delete;
+    DhtProxyServer& operator=(const DhtProxyServer& other) = delete;
+    DhtProxyServer& operator=(DhtProxyServer&& other) = delete;
+
+    struct ServerStats {
+        /** Current number of listen operations */
+        size_t listenCount;
+        /** Current number of permanent put operations */
+        size_t putCount;
+        /** Current number of push tokens with at least one listen operation */
+        size_t pushListenersCount;
+        /** Average requests per second */
+        double requestRate;
+        /** Node Info **/
+        NodeInfo nodeInfo;
+
+        std::string toString() const {
+            std::ostringstream ss;
+            ss << "Listens: " << listenCount << " Puts: " << putCount << " PushListeners: " << pushListenersCount << std::endl;
+            ss << "Requests: " << requestRate << " per second." << std::endl;
+            auto& ni = nodeInfo;
+            auto& ipv4 = ni.ipv4;
+            if (ipv4.table_depth > 1) {
+                ss << "IPv4 Network estimation: " << ipv4.getNetworkSizeEstimation() << std::endl;;
+            }
+            auto& ipv6 = ni.ipv6;
+            if (ipv6.table_depth > 1) {
+                ss << "IPv6 Network estimation: " << ipv6.getNetworkSizeEstimation() << std::endl;;
+            }
+            return ss.str();
+        }
+
+#ifdef OPENDHT_JSONCPP
+        /**
+         * Build a json object from a NodeStats
+         */
+        Json::Value toJson() const {
+            Json::Value result;
+            result["listenCount"] = static_cast<Json::UInt64>(listenCount);
+            result["putCount"] = static_cast<Json::UInt64>(putCount);
+            result["pushListenersCount"] = static_cast<Json::UInt64>(pushListenersCount);
+            result["requestRate"] = requestRate;
+            result["nodeInfo"] = nodeInfo.toJson();
+            return result;
+        }
+#endif
+    };
+
+    ServerStats stats() const { return stats_; }
+
+    void updateStats() const;
+
+    std::shared_ptr<DhtRunner> getNode() const { return dht_; }
+
+    /**
+     * Stop the DhtProxyServer
+     */
+    void stop();
+
+private:
+    /**
+     * Return the PublicKey id, the node id and node stats
+     * Method: GET "/"
+     * Result: HTTP 200, body: Node infos in JSON format
+     * On error: HTTP 503, body: {"err":"xxxx"}
+     * @param session
+     */
+    void getNodeInfo(const std::shared_ptr<restbed::Session>& session) const;
+
+    /**
+     * Return ServerStats in JSON format
+     * Method: STATS "/"
+     * Result: HTTP 200, body: Node infos in JSON format
+     * @param session
+     */
+    void getStats(const std::shared_ptr<restbed::Session>& session) const;
+
+    /**
+     * Return Values of an infoHash
+     * Method: GET "/{InfoHash: .*}"
+     * Return: Multiple JSON object in parts. Example:
+     * Value in JSON format\n
+     * Value in JSON format
+     *
+     * On error: HTTP 503, body: {"err":"xxxx"}
+     * @param session
+     */
+    void get(const std::shared_ptr<restbed::Session>& session) const;
+
+    /**
+     * Listen incoming Values of an infoHash.
+     * Method: LISTEN "/{InfoHash: .*}"
+     * Return: Multiple JSON object in parts. Example:
+     * Value in JSON format\n
+     * Value in JSON format
+     *
+     * On error: HTTP 503, body: {"err":"xxxx"}
+     * @param session
+     */
+    void listen(const std::shared_ptr<restbed::Session>& session);
+
+    /**
+     * Put a value on the DHT
+     * Method: POST "/{InfoHash: .*}"
+     * body = Value to put in JSON
+     * Return: HTTP 200 if success and the value put in JSON
+     * On error: HTTP 503, body: {"err":"xxxx"} if no dht
+     * HTTP 400, body: {"err":"xxxx"} if bad json or HTTP 502 if put fails
+     * @param session
+     */
+    void put(const std::shared_ptr<restbed::Session>& session);
+
+    void cancelPut(const InfoHash& key, Value::Id vid);
+
+#ifdef OPENDHT_PROXY_SERVER_IDENTITY
+    /**
+     * Put a value to sign by the proxy on the DHT
+     * Method: SIGN "/{InfoHash: .*}"
+     * body = Value to put in JSON
+     * Return: HTTP 200 if success and the value put in JSON
+     * On error: HTTP 503, body: {"err":"xxxx"} if no dht
+     * HTTP 400, body: {"err":"xxxx"} if bad json
+     * @param session
+     */
+    void putSigned(const std::shared_ptr<restbed::Session>& session) const;
+
+    /**
+     * Put a value to encrypt by the proxy on the DHT
+     * Method: ENCRYPT "/{hash: .*}"
+     * body = Value to put in JSON + "to":"infoHash"
+     * Return: HTTP 200 if success and the value put in JSON
+     * On error: HTTP 503, body: {"err":"xxxx"} if no dht
+     * HTTP 400, body: {"err":"xxxx"} if bad json
+     * @param session
+     */
+    void putEncrypted(const std::shared_ptr<restbed::Session>& session) const;
+#endif // OPENDHT_PROXY_SERVER_IDENTITY
+
+    /**
+     * Return Values of an infoHash filtered by a value id
+     * Method: GET "/{InfoHash: .*}/{ValueId: .*}"
+     * Return: Multiple JSON object in parts. Example:
+     * Value in JSON format\n
+     * Value in JSON format
+     *
+     * On error: HTTP 503, body: {"err":"xxxx"}
+     * @param session
+     */
+    void getFiltered(const std::shared_ptr<restbed::Session>& session) const;
+
+    /**
+     * Respond allowed Methods
+     * Method: OPTIONS "/{hash: .*}"
+     * Return: HTTP 200 + Allow: allowed methods
+     * See https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/OPTIONS
+     * @param session
+     */
+    void handleOptionsMethod(const std::shared_ptr<restbed::Session>& session) const;
+
+    /**
+     * Remove finished listeners
+     * @param testSession if we remove the listener only if the session is closed
+     */
+    void removeClosedListeners(bool testSession = true);
+
+#ifdef OPENDHT_PUSH_NOTIFICATIONS
+    /**
+     * Subscribe to push notifications for an iOS or Android device.
+     * Method: SUBSCRIBE "/{InfoHash: .*}"
+     * Body: {"key": "device_key", (optional)"isAndroid":false (default true)}"
+     * Return: {"token": x}" where x if a token to save
+     * @note: the listen will timeout after six hours (and send a push notification).
+     * so you need to refresh the operation each six hours.
+     * @param session
+     */
+    void subscribe(const std::shared_ptr<restbed::Session>& session);
+    /**
+     * Unsubscribe to push notifications for an iOS or Android device.
+     * Method: UNSUBSCRIBE "/{InfoHash: .*}"
+     * Body: {"key": "device_key", "token": x} where x if the token to cancel
+     * Return: nothing
+     * @param session
+     */
+    void unsubscribe(const std::shared_ptr<restbed::Session>& session);
+    /**
+     * Send a push notification via a gorush push gateway
+     * @param key of the device
+     * @param json, the content to send
+     */
+    void sendPushNotification(const std::string& key, Json::Value&& json, bool isAndroid) const;
+
+    /**
+     * Remove a push listener between a client and a hash
+     * @param pushToken
+     * @param key
+     * @param clientId
+     */
+    void cancelPushListen(const std::string& pushToken, const InfoHash& key, const std::string& clientId);
+
+
+#endif //OPENDHT_PUSH_NOTIFICATIONS
+
+    using clock = std::chrono::steady_clock;
+    using time_point = clock::time_point;
+
+    std::thread server_thread {};
+    std::unique_ptr<restbed::Service> service_;
+    std::shared_ptr<DhtRunner> dht_;
+    Json::StreamWriterBuilder jsonBuilder_;
+
+    std::mutex schedulerLock_;
+    std::condition_variable schedulerCv_;
+    Scheduler scheduler_;
+    std::thread schedulerThread_;
+    std::unique_ptr<ThreadPool> threadPool_;
+
+    Sp<Scheduler::Job> printStatsJob_;
+    mutable std::mutex statsMutex_;
+    mutable NodeInfo nodeInfo_ {};
+
+    // Handle client quit for listen.
+    // NOTE: can be simplified when we will supports restbed 5.0
+    std::thread listenThread_;
+    struct SessionToHashToken {
+        std::shared_ptr<restbed::Session> session;
+        InfoHash hash;
+        std::future<size_t> token;
+    };
+    std::vector<SessionToHashToken> currentListeners_;
+    std::mutex lockListener_;
+    std::atomic_bool stopListeners {false};
+
+    struct PermanentPut;
+    struct SearchPuts;
+    std::map<InfoHash, SearchPuts> puts_;
+
+    mutable std::atomic<size_t> requestNum_ {0};
+    mutable std::atomic<time_point> lastStatsReset_ {time_point::min()};
+
+    const std::string pushServer_;
+
+    mutable ServerStats stats_;
+
+#ifdef OPENDHT_PUSH_NOTIFICATIONS
+    struct Listener;
+    struct PushListener;
+    std::mutex lockPushListeners_;
+    std::map<std::string, PushListener> pushListeners_;
+    proxy::ListenToken tokenPushNotif_ {0};
+#endif //OPENDHT_PUSH_NOTIFICATIONS
+};
+
+}

include/opendht/dhtrunner.h

@@ -1,7 +1,8 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
- *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
- *              Simon Désaulniers <sim.desaulniers@gmail.com>
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
+ *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -14,16 +15,17 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
 
-//#include "securedht.h"
 #include "infohash.h"
 #include "value.h"
 #include "callbacks.h"
+#include "sockaddr.h"
+#include "log_enable.h"
+#include "def.h"
 
 #include <thread>
 #include <mutex>
@@ -38,6 +40,7 @@ namespace dht {
 
 struct Node;
 class SecureDht;
+class PeerDiscovery;
 struct SecureDhtConfig;
 
 /**
@@ -46,28 +49,37 @@ struct SecureDhtConfig;
  * either wait for (expectedly frequent) calls to ::loop() or start an internal
  * thread that will update the DHT when appropriate.
  */
-class DhtRunner {
+class OPENDHT_PUBLIC DhtRunner {
 
 public:
     typedef std::function<void(NodeStatus, NodeStatus)> StatusCallback;
 
+    struct Config {
+        SecureDhtConfig dht_config;
+        bool threaded;
+        std::string proxy_server;
+        std::string push_node_id;
+        bool peer_discovery;
+        bool peer_publish;
+    };
+
     DhtRunner();
     virtual ~DhtRunner();
 
-    void get(InfoHash id, GetCallbackSimple cb, DoneCallback donecb={}, Value::Filter f = Value::AllFilter()) {
-        get(id, bindGetCb(cb), donecb, f);
+    void get(InfoHash id, GetCallbackSimple cb, DoneCallback donecb={}, Value::Filter f = {}, Where w = {}) {
+        get(id, bindGetCb(cb), donecb, f, w);
     }
 
-    void get(InfoHash id, GetCallbackSimple cb, DoneCallbackSimple donecb={}, Value::Filter f = Value::AllFilter()) {
-        get(id, bindGetCb(cb), donecb, f);
+    void get(InfoHash id, GetCallbackSimple cb, DoneCallbackSimple donecb={}, Value::Filter f = {}, Where w = {}) {
+        get(id, bindGetCb(cb), donecb, f, w);
     }
 
-    void get(InfoHash hash, GetCallback vcb, DoneCallback dcb, Value::Filter f={});
+    void get(InfoHash hash, GetCallback vcb, DoneCallback dcb, Value::Filter f={}, Where w = {});
 
-    void get(InfoHash id, GetCallback cb, DoneCallbackSimple donecb={}, Value::Filter f = Value::AllFilter()) {
-        get(id, cb, bindDoneCb(donecb), f);
+    void get(InfoHash id, GetCallback cb, DoneCallbackSimple donecb={}, Value::Filter f = {}, Where w = {}) {
+        get(id, cb, bindDoneCb(donecb), f, w);
     }
-    void get(const std::string& key, GetCallback vcb, DoneCallbackSimple dcb={}, Value::Filter f = Value::AllFilter());
+    void get(const std::string& key, GetCallback vcb, DoneCallbackSimple dcb={}, Value::Filter f = {}, Where w = {});
 
     template <class T>
     void get(InfoHash hash, std::function<bool(std::vector<T>&&)> cb, DoneCallbackSimple dcb={})
@@ -96,7 +108,7 @@ public:
         getFilterSet<T>());
     }
 
-    std::future<std::vector<std::shared_ptr<dht::Value>>> get(InfoHash key, Value::Filter f = Value::AllFilter()) {
+    std::future<std::vector<std::shared_ptr<dht::Value>>> get(InfoHash key, Value::Filter f = {}, Where w = {}) {
         auto p = std::make_shared<std::promise<std::vector<std::shared_ptr< dht::Value >>>>();
         auto values = std::make_shared<std::vector<std::shared_ptr< dht::Value >>>();
         get(key, [=](const std::vector<std::shared_ptr<dht::Value>>& vlist) {
@@ -105,7 +117,7 @@ public:
         }, [=](bool) {
             p->set_value(std::move(*values));
         },
-        f);
+        f, w);
         return p->get_future();
     }
 
@@ -122,10 +134,23 @@ public:
         return p->get_future();
     }
 
-    std::future<size_t> listen(InfoHash key, GetCallback vcb, Value::Filter f = Value::AllFilter());
-    std::future<size_t> listen(const std::string& key, GetCallback vcb, Value::Filter f = Value::AllFilter());
-    std::future<size_t> listen(InfoHash key, GetCallbackSimple cb, Value::Filter f = Value::AllFilter()) {
-        return listen(key, bindGetCb(cb), f);
+    void query(const InfoHash& hash, QueryCallback cb, DoneCallback done_cb = {}, Query q = {});
+    void query(const InfoHash& hash, QueryCallback cb, DoneCallbackSimple done_cb = {}, Query q = {}) {
+        query(hash, cb, bindDoneCb(done_cb), q);
+    }
+
+    std::future<size_t> listen(InfoHash key, ValueCallback vcb, Value::Filter f = {}, Where w = {});
+
+    std::future<size_t> listen(InfoHash key, GetCallback cb, Value::Filter f={}, Where w={}) {
+        return listen(key, [cb](const std::vector<Sp<Value>>& vals, bool expired){
+            if (not expired)
+                return cb(vals);
+            return true;
+        }, std::forward<Value::Filter>(f), std::forward<Where>(w));
+    }
+    std::future<size_t> listen(const std::string& key, GetCallback vcb, Value::Filter f = {}, Where w = {});
+    std::future<size_t> listen(InfoHash key, GetCallbackSimple cb, Value::Filter f = {}, Where w = {}) {
+        return listen(key, bindGetCb(cb), f, w);
     }
 
     template <class T>
@@ -136,8 +161,17 @@ public:
         },
         getFilterSet<T>());
     }
+    template <class T>
+    std::future<size_t> listen(InfoHash hash, std::function<bool(std::vector<T>&&, bool)> cb)
+    {
+        return listen(hash, [=](const std::vector<std::shared_ptr<Value>>& vals, bool expired) {
+            return cb(unpackVector<T>(vals), expired);
+        },
+        getFilterSet<T>());
+    }
+
     template <typename T>
-    std::future<size_t> listen(InfoHash hash, std::function<bool(T&&)> cb, Value::Filter f = Value::AllFilter())
+    std::future<size_t> listen(InfoHash hash, std::function<bool(T&&)> cb, Value::Filter f = {}, Where w = {})
     {
         return listen(hash, [=](const std::vector<std::shared_ptr<Value>>& vals) {
             for (const auto& v : vals) {
@@ -150,7 +184,23 @@ public:
             }
             return true;
         },
-        getFilterSet<T>(f));
+        getFilterSet<T>(f), w);
+    }
+    template <typename T>
+    std::future<size_t> listen(InfoHash hash, std::function<bool(T&&, bool)> cb, Value::Filter f = {}, Where w = {})
+    {
+        return listen(hash, [=](const std::vector<std::shared_ptr<Value>>& vals, bool expired) {
+            for (const auto& v : vals) {
+                try {
+                    if (not cb(Value::unpack<T>(*v), expired))
+                        return false;
+                } catch (const std::exception&) {
+                    continue;
+                }
+            }
+            return true;
+        },
+        getFilterSet<T>(f), w);
     }
 
     void cancelListen(InfoHash h, size_t token);
@@ -191,10 +241,38 @@ public:
     }
     void putEncrypted(const std::string& key, InfoHash to, Value&& value, DoneCallback cb={});
 
-    void bootstrap(const char* host, const char* service);
-    void bootstrap(const std::vector<std::pair<sockaddr_storage, socklen_t>>& nodes);
+    /**
+     * Insert known nodes to the routing table, without necessarly ping them.
+     * Usefull to restart a node and get things running fast without putting load on the network.
+     */
+    void bootstrap(const std::vector<SockAddr>& nodes, DoneCallbackSimple&& cb={});
+    void bootstrap(const SockAddr& addr, DoneCallbackSimple&& cb={});
+
+    /**
+     * Insert known nodes to the routing table, without necessarly ping them.
+     * Usefull to restart a node and get things running fast without putting load on the network.
+     */
     void bootstrap(const std::vector<NodeExport>& nodes);
 
+    /**
+     * Add host:service to bootstrap nodes, and ping this node.
+     * DNS resolution is performed asynchronously.
+     * When disconnected, all bootstrap nodes added with this method will be tried regularly until connection
+     * to the DHT network is established.
+     */
+    void bootstrap(const std::string& host, const std::string& service);
+
+    /**
+     * Insert known nodes to the routing table, without necessarly ping them.
+     * Usefull to restart a node and get things running fast without putting load on the network.
+     */
+    void bootstrap(const InfoHash& id, const SockAddr& address);
+
+    /**
+     * Clear the list of bootstrap added using bootstrap(const std::string&, const std::string&).
+     */
+    void clearBootstrap();
+
     /**
      * Inform the DHT of lower-layer connectivity changes.
      * This will cause the DHT to assume an IP address change.
@@ -204,15 +282,21 @@ public:
 
     void dumpTables() const;
 
+    /**
+     * Get the public key fingerprint if an identity is used with this node, 0 otherwise.
+     */
     InfoHash getId() const;
 
+    /**
+     * Get the ID of the DHT node.
+     */
     InfoHash getNodeId() const;
 
     /**
      * Returns the currently bound address.
      * @param f: address family of the bound address to retreive.
      */
-    const Address& getBound(sa_family_t f = AF_INET) const {
+    const SockAddr& getBound(sa_family_t f = AF_INET) const {
         return (f == AF_INET) ? bound4 : bound6;
     }
 
@@ -221,7 +305,7 @@ public:
      * @param f: address family of the bound port to retreive.
      */
     in_port_t getBoundPort(sa_family_t f = AF_INET) const {
-        return ntohs(((sockaddr_in*)&getBound(f).first)->sin_port);
+        return getBound(f).getPort();
     }
 
     std::pair<size_t, size_t> getStoreSize() const;
@@ -234,6 +318,11 @@ public:
 
     void setLoggers(LogMethod err = NOLOG, LogMethod warn = NOLOG, LogMethod debug = NOLOG);
 
+    /**
+     * Only print logs related to the given InfoHash (if given), or disable filter (if zeroes).
+     */
+    void setLogFilter(const InfoHash& f = {});
+
     void registerType(const ValueType& type);
 
     void importValues(const std::vector<ValuesExport>& values);
@@ -242,14 +331,18 @@ public:
         return running;
     }
 
-    int getNodesStats(sa_family_t af, unsigned *good_return, unsigned *dubious_return, unsigned *cached_return, unsigned *incoming_return) const;
+    NodeStats getNodesStats(sa_family_t af) const;
+    unsigned getNodesStats(sa_family_t af, unsigned *good_return, unsigned *dubious_return, unsigned *cached_return, unsigned *incoming_return) const;
+    NodeInfo getNodeInfo() const;
 
     std::vector<unsigned> getNodeMessageStats(bool in = false) const;
     std::string getStorageLog() const;
+    std::string getStorageLog(const InfoHash&) const;
     std::string getRoutingTablesLog(sa_family_t af) const;
-    std::string getSearchesLog(sa_family_t af = 0) const;
-    std::vector<Address> getPublicAddress(sa_family_t af = 0);
-    std::vector<std::string> getPublicAddressStr(sa_family_t af = 0);
+    std::string getSearchesLog(sa_family_t af = AF_UNSPEC) const;
+    std::string getSearchLog(const InfoHash&, sa_family_t af = AF_UNSPEC) const;
+    std::vector<SockAddr> getPublicAddress(sa_family_t af = AF_UNSPEC);
+    std::vector<std::string> getPublicAddressStr(sa_family_t af = AF_UNSPEC);
 
     // securedht methods
 
@@ -257,30 +350,32 @@ public:
     void registerCertificate(std::shared_ptr<crypto::Certificate> cert);
     void setLocalCertificateStore(CertificateStoreQuery&& query_method);
 
-    struct Config {
-        SecureDhtConfig dht_config;
-        bool threaded;
-    };
-
     /**
      * @param port: Local port to bind. Both IPv4 and IPv6 will be tried (ANY).
      * @param identity: RSA key pair to use for cryptographic operations.
      * @param threaded: If false, ::loop() must be called periodically. Otherwise a thread is launched.
      * @param cb: Optional callback to receive general state information.
      */
-    void run(in_port_t port, const crypto::Identity identity, bool threaded = false, bool is_bootstrap = false) {
+    void run(in_port_t port = 4222, const crypto::Identity identity = {}, bool threaded = false, NetId network = 0) {
         run(port, {
             /*.dht_config = */{
                 /*.node_config = */{
                     /*.node_id = */{},
-                    /*.is_bootstrap = */is_bootstrap
+                    /*.network = */network,
+                    /*.is_bootstrap = */false,
+                    /*.maintain_storage = */false,
+                    /*.persist_path = */{}
                 },
                 /*.id = */identity
             },
-            /*.threaded = */threaded
+            /*.threaded = */threaded,
+            /*.proxy_server = */"",
+            /*.push_node_id = */"",
+            /*.peer_discovery = */true,
+            /*.peer_publish = */true,
         });
     }
-    void run(in_port_t port, Config config);
+    void run(in_port_t port, const Config& config);
 
     /**
      * @param local4: Local IPv4 address and port to bind. Can be null.
@@ -290,12 +385,12 @@ public:
      * @param threaded: If false, loop() must be called periodically. Otherwise a thread is launched.
      * @param cb: Optional callback to receive general state information.
      */
-    void run(const sockaddr_in* local4, const sockaddr_in6* local6, Config config);
+    void run(const SockAddr& local4, const SockAddr& local6, const Config& config);
 
     /**
      * Same as @run(sockaddr_in, sockaddr_in6, Identity, bool, StatusCallback), but with string IP addresses and service (port).
      */
-    void run(const char* ip4, const char* ip6, const char* service, Config config);
+    void run(const char* ip4, const char* ip6, const char* service, const Config& config);
 
     void setOnStatusChanged(StatusCallback&& cb) {
         statusCb = std::move(cb);
@@ -308,7 +403,13 @@ public:
      */
     time_point loop() {
         std::lock_guard<std::mutex> lck(dht_mtx);
-        return loop_();
+        time_point wakeup = time_point::min();
+        try {
+            wakeup = loop_();
+        } catch (const dht::SocketException& e) {
+            startNetwork(bound4, bound6);
+        }
+        return wakeup;
     }
 
     /**
@@ -323,38 +424,123 @@ public:
      */
     void join();
 
+    void setProxyServer(const std::string& proxy, const std::string& pushNodeId = "");
+
+    /**
+     * Start or stop the proxy
+     * @param proxify if we want to use the proxy
+     * @param deviceKey non empty to enable push notifications
+     */
+    void enableProxy(bool proxify);
+
+    /* Push notification methods */
+
+    /**
+     * Updates the push notification device token
+     */
+    void setPushNotificationToken(const std::string& token);
+
+    /**
+     * Insert a push notification to process for OpenDHT
+     */
+    void pushNotificationReceived(const std::map<std::string, std::string>& data);
+
+    /* Proxy server mothods */
+    void forwardAllMessages(bool forward);
+
 private:
+    static constexpr std::chrono::seconds BOOTSTRAP_PERIOD {10};
 
-    void doRun(const sockaddr_in* sin4, const sockaddr_in6* sin6, SecureDhtConfig config);
+    /**
+     * Will try to resolve the list of hostnames `bootstrap_nodes` on seperate
+     * thread and then queue ping requests. This list should contain reliable
+     * nodes so that the DHT node can recover quickly from losing connection
+     * with the network.
+     */
+    void tryBootstrapContinuously();
+
+    void stopNetwork();
+    void startNetwork(const SockAddr sin4, const SockAddr sin6);
     time_point loop_();
 
-    static std::vector<std::pair<sockaddr_storage, socklen_t>> getAddrInfo(const char* host, const char* service);
-
     NodeStatus getStatus() const {
         return std::max(status4, status6);
     }
 
+    /** Local DHT instance */
     std::unique_ptr<SecureDht> dht_;
+
+    /** Proxy client instance */
+    std::unique_ptr<SecureDht> dht_via_proxy_;
+
+    /** true if we are currently using a proxy */
+    std::atomic_bool use_proxy {false};
+
+    /** Current configuration */
+    Config config_;
+
+    /**
+     * reset dht clients
+     */
+    void resetDht();
+    /**
+     * @return the current active DHT
+     */
+    SecureDht* activeDht() const;
+
+    /**
+     * Store current listeners and translates global tokens for each client.
+     */
+    struct Listener;
+    std::map<size_t, Listener> listeners_;
+    size_t listener_token_ {1};
+
     mutable std::mutex dht_mtx {};
     std::thread dht_thread {};
     std::condition_variable cv {};
 
     std::thread rcv_thread {};
     std::mutex sock_mtx {};
-    std::vector<std::pair<Blob, std::pair<sockaddr_storage, socklen_t>>> rcv {};
+
+    struct ReceivedPacket {
+        Blob data;
+        SockAddr from;
+        time_point received;
+    };
+    std::queue<ReceivedPacket> rcv {};
+
+    /** true if currently actively boostraping */
+    std::atomic_bool bootstraping {false};
+    /* bootstrap nodes given as (host, service) pairs */
+    std::vector<std::pair<std::string,std::string>> bootstrap_nodes_all {};
+    std::vector<std::pair<std::string,std::string>> bootstrap_nodes {};
+    std::thread bootstrap_thread {};
+    /** protects bootstrap_nodes, bootstrap_thread */
+    std::mutex bootstrap_mtx {};
+    std::condition_variable bootstrap_cv {};
 
     std::queue<std::function<void(SecureDht&)>> pending_ops_prio {};
     std::queue<std::function<void(SecureDht&)>> pending_ops {};
     std::mutex storage_mtx {};
 
-    std::atomic<bool> running {false};
+    std::atomic_bool running {false};
+    std::atomic_bool running_network {false};
 
     NodeStatus status4 {NodeStatus::Disconnected},
                status6 {NodeStatus::Disconnected};
     StatusCallback statusCb {nullptr};
 
-    Address bound4 {};
-    Address bound6 {};
+    int stop_writefd {-1};
+    int s4 {-1}, s6 {-1};
+    SockAddr bound4 {};
+    SockAddr bound6 {};
+
+    /** Push notification token */
+    std::string pushToken_;
+
+    /** PeerDiscovery Parameters */
+    std::unique_ptr<PeerDiscovery> peerDiscovery4_;
+    std::unique_ptr<PeerDiscovery> peerDiscovery6_;
 };
 
 }

include/opendht/indexation/pht.h

@@ -1,3 +1,23 @@
+/*
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
+ *              Nicolas Reynaud <nicolas.reynaud@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
 #pragma once
 
 #include <string>
@@ -26,7 +46,7 @@ namespace indexation {
  * the node in question is a leaf, *the label is a prefix of all the keys
  * contained in the leaf*.
  */
-struct Prefix {
+struct OPENDHT_PUBLIC Prefix {
     Prefix() {}
     Prefix(InfoHash h) : size_(h.size() * 8), content_(h.begin(), h.end()) { }
     Prefix(const Blob& d, const Blob& f={}) : size_(d.size()*8), flags_(f), content_(d) { }
@@ -245,7 +265,7 @@ private:
 };
 
 using Value = std::pair<InfoHash, dht::Value::Id>;
-struct IndexEntry : public dht::Value::Serializable<IndexEntry> {
+struct OPENDHT_PUBLIC IndexEntry : public dht::Value::Serializable<IndexEntry> {
     static const ValueType TYPE;
 
     virtual void unpackValue(const dht::Value& v) {
@@ -262,10 +282,10 @@ struct IndexEntry : public dht::Value::Serializable<IndexEntry> {
     Blob prefix;
     Value value;
     std::string name;
-    MSGPACK_DEFINE_MAP(prefix, value);
+    MSGPACK_DEFINE_MAP(prefix, value)
 };
 
-class Pht {
+class OPENDHT_PUBLIC Pht {
     static constexpr const char* INVALID_KEY = "Key does not match the PHT key spec.";
 
     /* Prefixes the user_type for all dht values put on the DHT */
@@ -284,13 +304,13 @@ public:
     /* Specifications of the keys. It defines the number, the length and the
      * serialization order of fields. */
     using KeySpec = std::map<std::string, size_t>;
-    using LookupCallback = std::function<void(std::vector<std::shared_ptr<Value>>& values, Prefix p)>;
+    using LookupCallback = std::function<void(std::vector<std::shared_ptr<Value>>& values, const Prefix& p)>;
 
     typedef void (*LookupCallbackRaw)(std::vector<std::shared_ptr<Value>>* values, Prefix* p, void *user_data);
     static LookupCallback
     bindLookupCb(LookupCallbackRaw raw_cb, void* user_data) {
         if (not raw_cb) return {};
-        return [=](std::vector<std::shared_ptr<Value>>& values, Prefix p) {
+        return [=](std::vector<std::shared_ptr<Value>>& values, const Prefix& p) {
             raw_cb((std::vector<std::shared_ptr<Value>>*) &values, (Prefix*) &p, user_data);
         };
     }
@@ -353,7 +373,7 @@ private:
      * @param done_cb     : Callback to call when the insert is done
      */
 
-    void insert(Prefix kp, IndexEntry entry, std::shared_ptr<int> lo, std::shared_ptr<int> hi, time_point time_p,
+    void insert(const Prefix& kp, IndexEntry entry, std::shared_ptr<int> lo, std::shared_ptr<int> hi, time_point time_p,
                 bool check_split, DoneCallbackSimple done_cb = {});
 
     class Cache {
@@ -396,8 +416,8 @@ private:
     };
 
     /* Callback used for insert value by using the pht */
-    using RealInsertCallback = std::function<void(std::shared_ptr<Prefix> p, IndexEntry entry)>;
-    using LookupCallbackWrapper = std::function<void(std::vector<std::shared_ptr<IndexEntry>>& values, Prefix p)>;
+    using RealInsertCallback = std::function<void(const Prefix& p, IndexEntry entry)>;
+    using LookupCallbackWrapper = std::function<void(std::vector<std::shared_ptr<IndexEntry>>& values, const Prefix& p)>;
 
     /**
      * Performs a step in the lookup operation. Each steps are performed
@@ -446,7 +466,7 @@ private:
      * @param entry   The entry to put at the prefix p
      * @param end_cb  Callback to use at the end of counting
      */
-    void getRealPrefix(std::shared_ptr<Prefix> p, IndexEntry entry, RealInsertCallback end_cb );
+    void getRealPrefix(const std::shared_ptr<Prefix>& p, IndexEntry entry, RealInsertCallback end_cb );
 
     /**
      * Looking where to put the data cause if there is free space on the node
@@ -465,12 +485,11 @@ private:
      * @param vals     : The vector of values to compare with comapred
      * @return position compared diverge from all others
      */
-    size_t foundSplitLocation(Prefix compared, std::shared_ptr<std::vector<std::shared_ptr<IndexEntry>>> vals) {
+    static size_t findSplitLocation(const Prefix& compared, const std::vector<std::shared_ptr<IndexEntry>>& vals) {
         for ( size_t i = 0; i < compared.content_.size() * 8 - 1; i++ )
-            for ( auto const& v : *vals)
+            for ( auto const& v : vals)
                 if ( Prefix(v->prefix).isContentBitActive(i) != compared.isContentBitActive(i) )
                     return i + 1;
-
         return compared.content_.size() * 8 - 1;
     }
 
@@ -482,7 +501,7 @@ private:
      * @param entry  : Entry to put on the pht
      * @param end_cb : Callback to apply to the insert prefi (here does the insert)
      */
-    void split(Prefix insert, std::shared_ptr<std::vector<std::shared_ptr<IndexEntry>>> vals, IndexEntry entry, RealInsertCallback end_cb);
+    void split(const Prefix& insert, const std::vector<std::shared_ptr<IndexEntry>>& vals, IndexEntry entry, RealInsertCallback end_cb);
 
     /**
      * Tells if the key is valid according to the key spec.

include/opendht/infohash.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -13,12 +13,14 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
 
+#include "def.h"
+#include "rng.h"
+
 #include <msgpack.hpp>
 
 #ifndef _WIN32
@@ -40,54 +42,102 @@ typedef uint16_t in_port_t;
 #include <vector>
 #include <algorithm>
 #include <stdexcept>
+#include <sstream>
 #include <cstring>
 
-
-// bytes
-#define HASH_LEN 20u
-
 namespace dht {
 
+using byte = uint8_t;
+
+namespace crypto {
+    OPENDHT_PUBLIC void hash(const uint8_t* data, size_t data_length, uint8_t* hash, size_t hash_length);
+}
+
 /**
  * Represents an InfoHash.
  * An InfoHash is a byte array of HASH_LEN bytes.
  * InfoHashes identify nodes and values in the Dht.
  */
-class InfoHash final : public std::array<uint8_t, HASH_LEN> {
+template <size_t N>
+class OPENDHT_PUBLIC Hash {
 public:
-    constexpr InfoHash() : std::array<uint8_t, HASH_LEN>() {}
-    constexpr InfoHash(const std::array<uint8_t, HASH_LEN>& h) : std::array<uint8_t, HASH_LEN>(h) {}
-    InfoHash(const uint8_t* h, size_t h_len) : std::array<uint8_t, HASH_LEN>() {
-        if (h_len < HASH_LEN)
-            fill(0);
-        else
-            std::copy_n(h, HASH_LEN, begin());
-    }
+    using T = std::array<uint8_t, N>;
+    typedef typename T::iterator iterator;
+    typedef typename T::const_iterator const_iterator;
 
+    Hash () noexcept {
+        data_.fill(0);
+    }
+    Hash (const uint8_t* h, size_t data_len) {
+        if (data_len < N)
+            data_.fill(0);
+        else
+            std::copy_n(h, N, data_.begin());
+    }
     /**
      * Constructor from an hexadecimal string (without "0x").
      * hex must be at least 2.HASH_LEN characters long.
      * If too long, only the first 2.HASH_LEN characters are read.
      */
-    explicit InfoHash(const std::string& hex);
+    explicit Hash(const std::string& hex);
 
-    InfoHash(const msgpack::object& o) {
+    Hash(const msgpack::object& o) {
         msgpack_unpack(o);
     }
 
+    static constexpr size_t size() noexcept { return N; }
+    const uint8_t* data() const { return data_.data(); }
+    uint8_t* data() { return data_.data(); }
+    iterator begin() { return data_.begin(); }
+    const_iterator cbegin() const { return data_.cbegin(); }
+    iterator end() { return data_.end(); }
+    const_iterator cend() const { return data_.cend(); }
+
+    bool operator==(const Hash& h) const {
+        auto a = reinterpret_cast<const uint32_t*>(data_.data());
+        auto b = reinterpret_cast<const uint32_t*>(h.data_.data());
+        constexpr unsigned n = N / sizeof(uint32_t);
+        for (unsigned i=0; i < n; i++)
+            if (a[i] != b[i])
+                return false;
+        return true;
+    }
+    bool operator!=(const Hash& h) const { return !(*this == h); }
+
+    bool operator<(const Hash& o) const {
+        for(unsigned i = 0; i < N; i++) {
+            if(data_[i] != o.data_[i])
+                return data_[i] < o.data_[i];
+        }
+        return false;
+    }
+
+    explicit operator bool() const {
+        auto a = reinterpret_cast<const uint32_t*>(data_.data());
+        auto b = reinterpret_cast<const uint32_t*>(data_.data() + N);
+        for (; a != b; a++) {
+            if (*a)
+                return true;
+        }
+        return false;
+    }
+
+    uint8_t& operator[](size_t index) { return data_[index]; }
+    const uint8_t& operator[](size_t index) const { return data_[index]; }
+
     /**
      * Find the lowest 1 bit in an id.
-     * Result will allways be lower than 8*HASH_LEN
+     * Result will allways be lower than 8*N
      */
-    inline unsigned lowbit() const {
+    inline int lowbit() const {
         int i, j;
-        for(i = HASH_LEN-1; i >= 0; i--)
-            if((*this)[i] != 0)
+        for(i = N-1; i >= 0; i--)
+            if(data_[i] != 0)
                 break;
         if(i < 0)
             return -1;
         for(j = 7; j >= 0; j--)
-            if(((*this)[i] & (0x80 >> j)) != 0)
+            if((data_[i] & (0x80 >> j)) != 0)
                 break;
         return 8 * i + j;
     }
@@ -96,29 +146,25 @@ public:
      * Forget about the ``XOR-metric''.  An id is just a path from the
      * root of the tree, so bits are numbered from the start.
      */
-#ifdef WIN32_NATIVE
-    static inline int cmp(const InfoHash& __restrict id1, const InfoHash& __restrict id2) {
-#else
-    static inline int cmp(const InfoHash& __restrict__ id1, const InfoHash& __restrict__ id2) {
-#endif
-        return std::memcmp(id1.data(), id2.data(), HASH_LEN);
+    static inline int cmp(const Hash& id1, const Hash& id2) {
+        return std::memcmp(id1.data_.data(), id2.data_.data(), N);
     }
 
     /** Find how many bits two ids have in common. */
     static inline unsigned
-    commonBits(const InfoHash& id1, const InfoHash& id2)
+    commonBits(const Hash& id1, const Hash& id2)
     {
         unsigned i, j;
         uint8_t x;
-        for(i = 0; i < HASH_LEN; i++) {
-            if(id1[i] != id2[i])
+        for(i = 0; i < N; i++) {
+            if(id1.data_[i] != id2.data_[i])
                 break;
         }
 
-        if(i == HASH_LEN)
-            return 8*HASH_LEN;
+        if(i == N)
+            return 8*N;
 
-        x = id1[i] ^ id2[i];
+        x = id1.data_[i] ^ id2.data_[i];
 
         j = 0;
         while((x & 0x80) == 0) {
@@ -131,14 +177,14 @@ public:
 
     /** Determine whether id1 or id2 is closer to this */
     int
-    xorCmp(const InfoHash& id1, const InfoHash& id2) const
+    xorCmp(const Hash& id1, const Hash& id2) const
     {
-        for(unsigned i = 0; i < HASH_LEN; i++) {
+        for(unsigned i = 0; i < N; i++) {
             uint8_t xor1, xor2;
-            if(id1[i] == id2[i])
+            if(id1.data_[i] == id2.data_[i])
                 continue;
-            xor1 = id1[i] ^ (*this)[i];
-            xor2 = id2[i] ^ (*this)[i];
+            xor1 = id1.data_[i] ^ data_[i];
+            xor2 = id2.data_[i] ^ data_[i];
             if(xor1 < xor2)
                 return -1;
             else
@@ -150,7 +196,7 @@ public:
     bool
     getBit(unsigned nbit) const
     {
-        auto& num = *(cbegin()+(nbit/8));
+        auto& num = *(data_.cbegin()+(nbit/8));
         unsigned bit = 7 - (nbit % 8);
         return (num >> bit) & 1;
     }
@@ -158,69 +204,181 @@ public:
     void
     setBit(unsigned nbit, bool b)
     {
-        auto& num = (*this)[nbit/8];
+        auto& num = data_[nbit/8];
         unsigned bit = 7 - (nbit % 8);
         num ^= (-b ^ num) & (1 << bit);
     }
 
-    double
-    toFloat() const
-    {
+    double toFloat() const {
+        using D = size_t;
         double v = 0.;
-        for (unsigned i = 0; i < std::min<size_t>(HASH_LEN, sizeof(unsigned)-1); i++)
-            v += *(cbegin()+i)/(double)(1<<(8*(i+1)));
+        for (size_t i = 0; i < std::min<size_t>(N, sizeof(D)-1); i++)
+            v += *(data_.cbegin()+i) / (double)((D)1 << 8*(i+1));
         return v;
     }
 
-    bool
-    operator<(const InfoHash& o) const {
-        for(unsigned i = 0; i < HASH_LEN; i++) {
-            if((*this)[i] != o[i])
-                return (*this)[i] < o[i];
-        }
-        return false;
-    }
-
-    static inline InfoHash get(const std::string& data) {
+    static inline Hash get(const std::string& data) {
         return get((const uint8_t*)data.data(), data.size());
     }
 
-    static inline InfoHash get(const std::vector<uint8_t>& data) {
+    static inline Hash get(const std::vector<uint8_t>& data) {
         return get(data.data(), data.size());
     }
 
     /**
      * Computes the hash from a given data buffer of size data_len.
      */
-    static InfoHash get(const uint8_t* data, size_t data_len);
+    static Hash get(const uint8_t* data, size_t data_len)
+    {
+        Hash ret;
+        crypto::hash(data, data_len, ret.data(), N);
+        return ret;
+    }
 
-    static InfoHash getRandom();
+    static Hash getRandom();
 
-    friend std::ostream& operator<< (std::ostream& s, const InfoHash& h);
+    template <size_t M>
+    OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const Hash<M>& h);
+
+    template <size_t M>
+    OPENDHT_PUBLIC friend std::istream& operator>> (std::istream& s, Hash<M>& h);
+
+    const char* to_c_str() const;
 
     std::string toString() const;
 
     template <typename Packer>
     void msgpack_pack(Packer& pk) const
     {
-        pk.pack_bin(HASH_LEN);
-        pk.pack_bin_body((char*)data(), HASH_LEN);
+        pk.pack_bin(N);
+        pk.pack_bin_body((char*)data_.data(), N);
     }
 
     void msgpack_unpack(msgpack::object o) {
-        if (o.type != msgpack::type::BIN or o.via.bin.size != HASH_LEN)
+        if (o.type != msgpack::type::BIN or o.via.bin.size != N)
             throw msgpack::type_error();
-        std::copy_n(o.via.bin.ptr, HASH_LEN, data());
+        std::copy_n(o.via.bin.ptr, N, data_.data());
     }
-
+private:
+    T data_;
+    void fromString(const char*);
 };
 
-static constexpr const InfoHash zeroes {};
+#define HASH_LEN 20u
+using InfoHash = Hash<HASH_LEN>;
+using h256 = Hash<32>;
+using PkId = h256;
 
-struct NodeExport {
+template <size_t N>
+std::ostream& operator<< (std::ostream& s, const Hash<N>& h)
+{
+    s.write(h.to_c_str(), N*2);
+    return s;
+}
+
+template <size_t N>
+std::istream& operator>> (std::istream& s, Hash<N>& h)
+{
+    std::array<char, h.size()*2> dat;
+    s.exceptions(std::istream::eofbit | std::istream::failbit);
+    s.read(&(*dat.begin()), dat.size());
+    fromString(dat.data());
+    return s;
+}
+
+template <size_t N>
+Hash<N>::Hash(const std::string& hex) {
+    if (hex.size() < 2*N)
+        data_.fill(0);
+    else
+        fromString(hex.c_str());
+}
+
+template <size_t N>
+void
+Hash<N>::fromString(const char* in) {
+    auto hex2bin = [](char c) -> uint8_t {
+        if      (c >= 'a' and c <= 'f') return 10 + c - 'a';
+        else if (c >= 'A' and c <= 'F') return 10 + c - 'A';
+        else if (c >= '0' and c <= '9') return c - '0';
+        else throw std::domain_error("not an hex character");
+    };
+    try {
+        for (size_t i=0; i<N; i++)
+            data_[i] = (hex2bin(in[2*i]) << 4) | hex2bin(in[2*i+1]);
+    } catch (const std::domain_error&) {
+        data_.fill(0);
+    }
+}
+
+template <size_t N>
+Hash<N>
+Hash<N>::getRandom()
+{
+    Hash h;
+    crypto::random_device rdev;
+    std::uniform_int_distribution<uint32_t> rand_int;
+    auto a = reinterpret_cast<uint32_t*>(h.data());
+    auto b = reinterpret_cast<uint32_t*>(h.data() + h.size());
+    std::generate(a, b, std::bind(rand_int, std::ref(rdev)));
+    return h;
+}
+
+struct HexMap : public std::array<std::array<char, 2>, 256> {
+    HexMap() {
+        for (size_t i=0; i<size(); i++) {
+            auto& e = (*this)[i];
+            e[0] = hex_digits[(i >> 4) & 0x0F];
+            e[1] = hex_digits[i & 0x0F];
+        }
+    }
+private:
+    static constexpr const char* hex_digits = "0123456789abcdef";
+};
+
+OPENDHT_PUBLIC extern const HexMap hex_map;
+
+template <size_t N>
+const char*
+Hash<N>::to_c_str() const
+{
+    thread_local std::array<char, N*2+1> buf;
+    for (size_t i=0; i<N; i++) {
+        auto b = buf.data()+i*2;
+        const auto& m = hex_map[data_[i]];
+        *((uint16_t*)b) = *((uint16_t*)&m);
+    }
+    return buf.data();
+}
+
+template <size_t N>
+std::string
+Hash<N>::toString() const
+{
+    return std::string(to_c_str(), N*2);
+}
+
+const InfoHash zeroes {};
+
+struct OPENDHT_PUBLIC NodeExport {
     InfoHash id;
     sockaddr_storage ss;
     socklen_t sslen;
+
+    template <typename Packer>
+    void msgpack_pack(Packer& pk) const
+    {
+        pk.pack_map(2);
+        pk.pack(std::string("id"));
+        pk.pack(id);
+        pk.pack(std::string("addr"));
+        pk.pack_bin(sslen);
+        pk.pack_bin_body((char*)&ss, sslen);
+    }
+
+    void msgpack_unpack(msgpack::object o);
+
+    OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const NodeExport& h);
 };
 
 }

include/opendht/log.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *
  *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
@@ -14,8 +14,7 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
@@ -23,9 +22,12 @@
 #include "dhtrunner.h"
 
 #include <iostream>
-#include <fstream>
 
 namespace dht {
+
+/**
+ * Logging-related functions
+ */
 namespace log {
 
 /**
@@ -61,48 +63,20 @@ constexpr const Color::Modifier yellow(Color::FG_YELLOW);
 /**
  * Print va_list to std::ostream (used for logging).
  */
-void
-printLog(std::ostream& s, char const* m, va_list args) {
-    static constexpr int BUF_SZ = 8192;
-    char buffer[BUF_SZ];
-    int ret = vsnprintf(buffer, sizeof(buffer), m, args);
-    if (ret < 0)
-        return;
-    s.write(buffer, std::min(ret, BUF_SZ));
-    if (ret >= BUF_SZ)
-        s << "[[TRUNCATED]]";
-    s.put('\n');
-}
+OPENDHT_PUBLIC void
+printLog(std::ostream &s, char const *m, va_list args);
 
-void
-enableLogging(dht::DhtRunner& dht)
-{
-    dht.setLoggers(
-        [](char const* m, va_list args){ std::cerr << red; printLog(std::cerr, m, args); std::cerr << def; },
-        [](char const* m, va_list args){ std::cout << yellow; printLog(std::cout, m, args); std::cout << def; },
-        [](char const* m, va_list args){ printLog(std::cout, m, args); }
-    );
-}
+OPENDHT_PUBLIC void
+enableLogging(dht::DhtRunner &dht);
 
-void
-enableFileLogging(dht::DhtRunner& dht, const std::string& path)
-{
-    auto logfile = std::make_shared<std::fstream>();
-    logfile->open(path, std::ios::out);
+OPENDHT_PUBLIC void
+enableFileLogging(dht::DhtRunner &dht, const std::string &path);
 
-    dht.setLoggers(
-        [=](char const* m, va_list args){ printLog(*logfile, m, args); },
-        [=](char const* m, va_list args){ printLog(*logfile, m, args); },
-        [=](char const* m, va_list args){ printLog(*logfile, m, args); }
-    );
-}
+OPENDHT_PUBLIC void
+disableLogging(dht::DhtRunner &dht);
 
-void
-disableLogging(dht::DhtRunner& dht)
-{
-    dht.setLoggers(dht::NOLOG, dht::NOLOG, dht::NOLOG);
-}
+OPENDHT_PUBLIC void
+enableSyslog(dht::DhtRunner &dht, const char* name);
 
 } /* log */
 } /* dht  */
-

include/opendht/log_enable.h

@@ -0,0 +1,190 @@
+/*
+ *  Copyright (C) 2016-2019 Savoir-faire Linux Inc.
+ *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "infohash.h"
+
+#ifndef OPENDHT_LOG
+#define OPENDHT_LOG true
+#endif
+
+namespace dht {
+
+// Logging related utility functions
+
+/**
+ * Dummy function used to disable logging
+ */
+inline void NOLOG(char const*, va_list) {}
+
+/**
+ * Wrapper for logging methods
+ */
+struct LogMethod {
+    LogMethod() = default;
+
+    LogMethod(LogMethod&& l) : func(std::move(l.func)) {}
+    LogMethod(const LogMethod& l) : func(l.func) {}
+
+    LogMethod& operator=(dht::LogMethod&& l) {
+        func = std::forward<LogMethod>(l.func);
+        return *this;
+    }
+    LogMethod& operator=(const dht::LogMethod& l) {
+        func = l.func;
+        return *this;
+    }
+
+    template<typename T>
+    explicit LogMethod(T&& t) : func(std::forward<T>(t)) {}
+
+    template<typename T>
+    LogMethod(const T& t) : func(t) {}
+
+    void operator()(char const* format, ...) const {
+        va_list args;
+        va_start(args, format);
+        func(format, args);
+        va_end(args);
+    }
+    void log(char const* format, va_list args) const {
+        func(format, args);
+    }
+    explicit operator bool() const {
+        return (bool)func;
+    }
+
+    void logPrintable(const uint8_t *buf, size_t buflen) const {
+        std::string buf_clean(buflen, '\0');
+        for (size_t i=0; i<buflen; i++)
+            buf_clean[i] = isprint(buf[i]) ? buf[i] : '.';
+        (*this)("%s", buf_clean.c_str());
+    }
+private:
+    std::function<void(char const*, va_list)> func;
+};
+
+struct Logger {
+    LogMethod DBG = NOLOG;
+    LogMethod WARN = NOLOG;
+    LogMethod ERR = NOLOG;
+    void setFilter(const InfoHash& f) {
+        filter_ = f;
+        filterEnable_ = static_cast<bool>(filter_);
+    }
+    inline void log0(const LogMethod& logger, char const* format, va_list args) const {
+#if OPENDHT_LOG
+        if (logger and not filterEnable_)
+            logger.log(format, args);
+#endif
+    }
+    inline void log1(const LogMethod& logger, const InfoHash& f, char const* format, va_list args) const {
+#if OPENDHT_LOG
+        if (logger and (not filterEnable_ or f == filter_))
+            logger.log(format, args);
+#endif
+    }
+    inline void log2(const LogMethod& logger, const InfoHash& f1, const InfoHash& f2, char const* format, va_list args) const {
+#if OPENDHT_LOG
+        if (logger and (not filterEnable_ or f1 == filter_ or f2 == filter_))
+            logger.log(format, args);
+#endif
+    }
+    inline void d(char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log0(DBG, format, args);
+        va_end(args);
+#endif
+    }
+    inline void d(const InfoHash& f, char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log1(DBG, f, format, args);
+        va_end(args);
+#endif
+    }
+    inline void d(const InfoHash& f1, const InfoHash& f2, char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log2(DBG, f1, f2, format, args);
+        va_end(args);
+#endif
+    }
+    inline void w(char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log0(WARN, format, args);
+        va_end(args);
+#endif
+    }
+    inline void w(const InfoHash& f, char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log1(WARN, f, format, args);
+        va_end(args);
+#endif
+    }
+    inline void w(const InfoHash& f1, const InfoHash& f2, char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log2(WARN, f1, f2, format, args);
+        va_end(args);
+#endif
+    }
+    inline void e(char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log0(ERR, format, args);
+        va_end(args);
+#endif
+    }
+    inline void e(const InfoHash& f, char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log1(ERR, f, format, args);
+        va_end(args);
+#endif
+    }
+    inline void e(const InfoHash& f1, const InfoHash& f2, char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log2(ERR, f1, f2, format, args);
+        va_end(args);
+#endif
+    }
+private:
+    bool filterEnable_ {false};
+    InfoHash filter_ {};
+};
+
+}

include/opendht/network_engine.h

@@ -1,7 +1,7 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
- *              Simon Désaulniers <sim.desaulniers@gmail.com>
+ *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -14,11 +14,9 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
-
 #pragma once
 
 #include "node_cache.h"
@@ -28,16 +26,22 @@
 #include "scheduler.h"
 #include "utils.h"
 #include "rng.h"
+#include "rate_limiter.h"
+#include "log_enable.h"
 
 #include <vector>
 #include <string>
 #include <functional>
 #include <algorithm>
 #include <memory>
-#include <random>
 #include <queue>
 
 namespace dht {
+namespace net {
+
+struct Request;
+struct Socket;
+struct TransId;
 
 #ifndef MSG_CONFIRM
 #define MSG_CONFIRM 0
@@ -48,6 +52,7 @@ public:
     // sent to another peer (http-like).
     static const constexpr uint16_t NON_AUTHORITATIVE_INFORMATION {203}; /* incomplete request packet. */
     static const constexpr uint16_t UNAUTHORIZED {401};                  /* wrong tokens. */
+    static const constexpr uint16_t NOT_FOUND {404};                     /* storage not found */
     // for internal use (custom).
     static const constexpr uint16_t INVALID_TID_SIZE {421};              /* id was truncated. */
     static const constexpr uint16_t UNKNOWN_TID {422};                   /* unknown tid */
@@ -58,23 +63,40 @@ public:
     static const std::string LISTEN_WRONG_TOKEN; /* wrong token in "listen" request */
     static const std::string PUT_NO_INFOHASH;    /* no infohash in "put" request */
     static const std::string PUT_WRONG_TOKEN;    /* got "put" request with wrong token */
+    static const std::string STORAGE_NOT_FOUND;  /* got access request for an unknown storage */
     static const std::string PUT_INVALID_ID;     /* invalid id in "put" request */
 
     DhtProtocolException(uint16_t code, const std::string& msg="", InfoHash failing_node_id={})
         : DhtException(msg), msg(msg), code(code), failing_node_id(failing_node_id) {}
 
-    std::string getMsg() const { return msg; }
+    const std::string& getMsg() const { return msg; }
     uint16_t getCode() const { return code; }
-    const InfoHash getNodeId() const { return failing_node_id; }
+    const InfoHash& getNodeId() const { return failing_node_id; }
 
 private:
     std::string msg;
     uint16_t code;
-    const InfoHash failing_node_id;
+    InfoHash failing_node_id;
 };
 
 struct ParsedMessage;
 
+/**
+ * Answer for a request.
+ */
+struct RequestAnswer {
+    Blob ntoken {};
+    Value::Id vid {};
+    std::vector<Sp<Value>> values {};
+    std::vector<Value::Id> refreshed_values {};
+    std::vector<Value::Id> expired_values {};
+    std::vector<Sp<FieldValueIndex>> fields {};
+    std::vector<Sp<Node>> nodes4 {};
+    std::vector<Sp<Node>> nodes6 {};
+    RequestAnswer() {}
+    RequestAnswer(ParsedMessage&& msg);
+};
+
 /*!
  * @class   NetworkEngine
  * @brief   An abstraction of communication protocol on the network.
@@ -91,247 +113,277 @@ struct ParsedMessage;
  * @param onGetValues    callback for "get values" request.
  * @param onListen       callback for "listen" request.
  * @param onAnnounce     callback for "announce" request.
+ * @param onRefresh      callback for "refresh" request.
  */
-class NetworkEngine final {
-    struct TransPrefix : public  std::array<uint8_t, 2>  {
-        TransPrefix(const std::string& str) : std::array<uint8_t, 2>({{(uint8_t)str[0], (uint8_t)str[1]}}) {}
-        static const TransPrefix PING;
-        static const TransPrefix FIND_NODE;
-        static const TransPrefix GET_VALUES;
-        static const TransPrefix ANNOUNCE_VALUES;
-        static const TransPrefix LISTEN;
-    };
-public:
-
-    /* Transaction-ids are 4-bytes long, with the first two bytes identifying
-     * the kind of request, and the remaining two a sequence number in
-     * host order.
-     */
-    struct TransId final : public std::array<uint8_t, 4> {
-        static const constexpr uint16_t INVALID {0};
-
-        TransId() {}
-        TransId(const std::array<char, 4>& o) { std::copy(o.begin(), o.end(), begin()); }
-        TransId(const TransPrefix prefix, uint16_t seqno = 0) {
-            std::copy_n(prefix.begin(), prefix.size(), begin());
-            *reinterpret_cast<uint16_t*>(data()+prefix.size()) = seqno;
-        }
-
-        TransId(const char* q, size_t l) : array<uint8_t, 4>() {
-            if (l > 4) {
-                length = 0;
-            } else {
-                std::copy_n(q, l, begin());
-                length = l;
-            }
-        }
-
-        uint16_t getTid() const {
-            return *reinterpret_cast<const uint16_t*>(&(*this)[2]);
-        }
-
-        bool matches(const TransPrefix prefix, uint16_t* tid = nullptr) const {
-            if (std::equal(begin(), begin()+2, prefix.begin())) {
-                if (tid)
-                    *tid = getTid();
-                return true;
-            } else
-                return false;
-        }
-
-        unsigned length {4};
-    };
-
-    /*!
-     * @class   RequestAnswer
-     * @brief   Answer for a request.
-     * @details
-     * Answer for a request to be (de)serialized. Used for reponding to a node
-     * and looking up the response from a node.
-     */
-    struct RequestAnswer {
-        Blob ntoken {};
-        Value::Id vid {};
-        std::vector<std::shared_ptr<Value>> values {};
-        std::vector<std::shared_ptr<Node>> nodes4 {};
-        std::vector<std::shared_ptr<Node>> nodes6 {};
-        RequestAnswer() {}
-        RequestAnswer(ParsedMessage&& msg);
-    };
-
-
-    /**
-     * Cancel a request. Setting req->cancelled = true is not enough in the case
-     * a request is "persistent".
-     */
-    void cancelRequest(std::shared_ptr<Request>& req);
-
-    void connectivityChanged();
-
+class NetworkEngine final
+{
 private:
+    /**
+     * Called when we receive an error message.
+     */
+    std::function<void(Sp<Request>, DhtProtocolException)> onError;
 
     /**
-     * @brief when we receive an error message.
-     *
-     * @param node (type: std::shared_ptr<Request>) the associated request for
-     *             which we got an error;
-     */
-    std::function<void(std::shared_ptr<Request>, DhtProtocolException)> onError;
-    /**
-     * @brief when a new node happens.
-     *
      * Called for every packets received for handling new nodes contacting us.
      *
-     * @param id (type: InfoHash) id of the node.
-     * @param saddr (type: sockaddr*) sockaddr* pointer containing address ip information.
-     * @param saddr_len (type: socklen_t) lenght of the sockaddr struct.
-     * @param confirm (type: int) 1 if the node sent a message, 2 if it sent us a reply.
+     * @param node: the node
+     * @param confirm: 1 if the node sent a message, 2 if it sent us a reply.
      */
-    std::function<void(const std::shared_ptr<Node>&, int)> onNewNode;
+    std::function<void(const Sp<Node>&, int)> onNewNode;
     /**
-     * @brief when an addres is reported from a distant node.
+     * Called when an addres is reported from a requested node.
      *
-     * @param id (type: InfoHash) id of the node.
-     * @param saddr (type: sockaddr*) sockaddr* pointer containing address ip information.
+     * @param h: id
      * @param saddr_len (type: socklen_t) lenght of the sockaddr struct.
      */
-    std::function<void(const InfoHash&, sockaddr*, socklen_t)> onReportedAddr;
+    std::function<void(const InfoHash&, const SockAddr&)> onReportedAddr;
     /**
-     * @brief on ping request callback.
+     * Called on ping reception.
      *
-     * @param node (type: std::shared_ptr<Node>) the requesting node.
+     * @param node (type: Sp<Node>) the requesting node.
      */
-    std::function<RequestAnswer(std::shared_ptr<Node>)> onPing {};
+    std::function<RequestAnswer(Sp<Node>)> onPing {};
     /**
-     * @brief on find node request callback.
+     * Called on find node request.
      *
-     * @param node (type: std::shared_ptr<Node>) the requesting node.
-     * @param vhash (type: InfoHash) hash of the value of interest.
+     * @param node (type: Sp<Node>) the requesting node.
+     * @param h (type: InfoHash) hash of the value of interest.
      * @param want (type: want_t) states if nodes sent in the response are ipv4
      *             or ipv6.
      */
-    std::function<RequestAnswer(std::shared_ptr<Node>,
-            InfoHash&,
-            want_t)> onFindNode {};
+    std::function<RequestAnswer(Sp<Node>, const InfoHash&, want_t)> onFindNode {};
     /**
-     * @brief on "get values" request callback.
+     * Called on "get values" request.
      *
-     * @param node (type: std::shared_ptr<Node>) the requesting node.
-     * @param vhash (type: InfoHash) hash of the value of interest.
+     * @param node (type: Sp<Node>) the requesting node.
+     * @param h (type: InfoHash) hash of the value of interest.
      * @param want (type: want_t) states if nodes sent in the response are ipv4
      *             or ipv6.
      */
-    std::function<RequestAnswer(std::shared_ptr<Node>,
-            InfoHash&,
-            want_t)> onGetValues {};
+    std::function<RequestAnswer(Sp<Node>, const InfoHash&, want_t, const Query&)> onGetValues {};
     /**
-     * @brief on listen request callback.
+     * Called on listen request.
      *
-     * @param node (type: std::shared_ptr<Node>) the requesting node.
-     * @param vhash (type: InfoHash) hash of the value of interest.
+     * @param node (type: Sp<Node>) the requesting node.
+     * @param h (type: InfoHash) hash of the value of interest.
      * @param token (type: Blob) security token.
      * @param rid (type: uint16_t) request id.
      */
-    std::function<RequestAnswer(std::shared_ptr<Node>,
-            InfoHash&,
-            Blob&,
-            uint16_t)> onListen {};
+    std::function<RequestAnswer(Sp<Node>,
+            const InfoHash&,
+            const Blob&,
+            Tid,
+            const Query&)> onListen {};
     /**
-     * @brief on announce request callback.
+     * Called on announce request.
      *
-     * @param node (type: std::shared_ptr<Node>) the requesting node.
-     * @param vhash (type: InfoHash) hash of the value of interest.
+     * @param node (type: Sp<Node>) the requesting node.
+     * @param h (type: InfoHash) hash of the value of interest.
      * @param token (type: Blob) security token.
-     * @param values (type: std::vector<std::shared_ptr<Value>>) values to store.
+     * @param values (type: std::vector<Sp<Value>>) values to store.
      * @param created (type: time_point) time when the value was created.
      */
-    std::function<RequestAnswer(std::shared_ptr<Node>,
-            InfoHash&,
-            Blob&,
-            std::vector<std::shared_ptr<Value>>,
-            time_point)> onAnnounce {};
+    std::function<RequestAnswer(Sp<Node>,
+            const InfoHash&,
+            const Blob&,
+            const std::vector<Sp<Value>>&,
+            const time_point&)> onAnnounce {};
+    /**
+     * Called on refresh request.
+     *
+     * @param node (type: Sp<Node>) the requesting node.
+     * @param h (type: InfoHash) hash of the value of interest.
+     * @param token (type: Blob) security token.
+     * @param vid (type: Value::id) the value id.
+     */
+    std::function<RequestAnswer(Sp<Node>,
+            const InfoHash&,
+            const Blob&,
+            const Value::Id&)> onRefresh {};
 
 public:
     using RequestCb = std::function<void(const Request&, RequestAnswer&&)>;
     using RequestExpiredCb = std::function<void(const Request&, bool)>;
 
-    NetworkEngine(Logger& log, Scheduler& scheduler) : myid(zeroes), DHT_LOG(log), scheduler(scheduler) {}
-    NetworkEngine(InfoHash& myid, int s, int s6, Logger& log, Scheduler& scheduler,
-            decltype(NetworkEngine::onError) onError,
-            decltype(NetworkEngine::onNewNode) onNewNode,
-            decltype(NetworkEngine::onReportedAddr) onReportedAddr,
-            decltype(NetworkEngine::onPing) onPing,
-            decltype(NetworkEngine::onFindNode) onFindNode,
-            decltype(NetworkEngine::onGetValues) onGetValues,
-            decltype(NetworkEngine::onListen) onListen,
-            decltype(NetworkEngine::onAnnounce) onAnnounce) :
-        onError(onError), onNewNode(onNewNode), onReportedAddr(onReportedAddr), onPing(onPing), onFindNode(onFindNode),
-        onGetValues(onGetValues), onListen(onListen), onAnnounce(onAnnounce), myid(myid),
-        dht_socket(s), dht_socket6(s6), DHT_LOG(log), scheduler(scheduler)
-    {
-        transaction_id = std::uniform_int_distribution<decltype(transaction_id)>{1}(rd_device);
-    }
-    virtual ~NetworkEngine() {
-        clear();
-    };
+    NetworkEngine(Logger& log, Scheduler& scheduler, const int& s = -1, const int& s6 = -1);
+    NetworkEngine(InfoHash& myid, NetId net, const int& s, const int& s6, Logger& log, Scheduler& scheduler,
+            decltype(NetworkEngine::onError)&& onError,
+            decltype(NetworkEngine::onNewNode)&& onNewNode,
+            decltype(NetworkEngine::onReportedAddr)&& onReportedAddr,
+            decltype(NetworkEngine::onPing)&& onPing,
+            decltype(NetworkEngine::onFindNode)&& onFindNode,
+            decltype(NetworkEngine::onGetValues)&& onGetValues,
+            decltype(NetworkEngine::onListen)&& onListen,
+            decltype(NetworkEngine::onAnnounce)&& onAnnounce,
+            decltype(NetworkEngine::onRefresh)&& onRefresh);
+
+    virtual ~NetworkEngine();
 
     void clear();
 
     /**
      * Sends values (with closest nodes) to a listenner.
      *
-     * @param sa  The address of the listenner.
-     * @param sslen  The length of the sockaddr structure.
-     * @param rid  The request id of the initial listen request.
-     * @param hash  The hash key of the value.
-     * @param want  Wether to send ipv4 and/or ipv6 nodes.
-     * @param ntoken  Listen security token.
-     * @param nodes  The ipv4 closest nodes.
-     * @param nodes6  The ipv6 closest nodes.
-     * @param values  The values to send.
+     * @param sa          The address of the listenner.
+     * @param sslen       The length of the sockaddr structure.
+     * @param socket_id  The tid to use to write to the request socket.
+     * @param hash        The hash key of the value.
+     * @param want        Wether to send ipv4 and/or ipv6 nodes.
+     * @param ntoken      Listen security token.
+     * @param nodes       The ipv4 closest nodes.
+     * @param nodes6      The ipv6 closest nodes.
+     * @param values      The values to send.
      */
-    void tellListener(std::shared_ptr<Node> n, uint16_t rid, InfoHash hash, want_t want, Blob ntoken,
-            std::vector<std::shared_ptr<Node>> nodes, std::vector<std::shared_ptr<Node>> nodes6,
-            std::vector<std::shared_ptr<Value>> values);
+    void tellListener(Sp<Node> n, Tid socket_id, const InfoHash& hash, want_t want, const Blob& ntoken,
+            std::vector<Sp<Node>>&& nodes, std::vector<Sp<Node>>&& nodes6,
+            std::vector<Sp<Value>>&& values, const Query& q);
+
+    void tellListenerRefreshed(Sp<Node> n, Tid socket_id, const InfoHash& hash, const Blob& ntoken, const std::vector<Value::Id>& values);
+    void tellListenerExpired(Sp<Node> n, Tid socket_id, const InfoHash& hash, const Blob& ntoken, const std::vector<Value::Id>& values);
 
     bool isRunning(sa_family_t af) const;
     inline want_t want () const { return dht_socket >= 0 && dht_socket6 >= 0 ? (WANT4 | WANT6) : -1; }
 
+    void connectivityChanged(sa_family_t);
+
     /**************
      *  Requests  *
      **************/
-    std::shared_ptr<Request>
-        sendPing(std::shared_ptr<Node> n, RequestCb on_done, RequestExpiredCb on_expired);
-    std::shared_ptr<Request>
-        sendPing(const sockaddr* sa, socklen_t salen, RequestCb on_done, RequestExpiredCb on_expired) {
-            return sendPing(std::make_shared<Node>(zeroes, sa, salen), on_done, on_expired);
+
+    /**
+     * Send a "ping" request to a given node.
+     *
+     * @param n           The node.
+     * @param on_done     Request callback when the request is completed.
+     * @param on_expired  Request callback when the request expires.
+     *
+     * @return the request with information concerning its success.
+     */
+    Sp<Request>
+        sendPing(Sp<Node> n, RequestCb&& on_done, RequestExpiredCb&& on_expired);
+    /**
+     * Send a "ping" request to a given node.
+     *
+     * @param sa          The node's ip sockaddr info.
+     * @param salen       The associated sockaddr struct length.
+     * @param on_done     Request callback when the request is completed.
+     * @param on_expired  Request callback when the request expires.
+     *
+     * @return the request with information concerning its success.
+     */
+    Sp<Request>
+        sendPing(const sockaddr* sa, socklen_t salen, RequestCb&& on_done, RequestExpiredCb&& on_expired) {
+            return sendPing(std::make_shared<Node>(zeroes, sa, salen),
+                    std::forward<RequestCb>(on_done),
+                    std::forward<RequestExpiredCb>(on_expired));
         }
-    std::shared_ptr<Request>
-        sendFindNode(std::shared_ptr<Node> n,
-                const InfoHash& target,
-                want_t want,
-                RequestCb on_done,
-                RequestExpiredCb on_expired);
-    std::shared_ptr<Request>
-        sendGetValues(std::shared_ptr<Node> n,
-                const InfoHash& target,
-                want_t want,
-                RequestCb on_done,
-                RequestExpiredCb on_expired);
-    std::shared_ptr<Request>
-        sendListen(std::shared_ptr<Node> n,
-                const InfoHash& infohash,
-                const Blob& token,
-                RequestCb on_done,
-                RequestExpiredCb on_expired);
-    std::shared_ptr<Request>
-        sendAnnounceValue(std::shared_ptr<Node> n,
-                const InfoHash& infohash,
-                const Value& v,
-                time_point created,
-                const Blob& token,
-                RequestCb on_done,
-                RequestExpiredCb on_expired);
+    /**
+     * Send a "find node" request to a given node.
+     *
+     * @param n           The node.
+     * @param target      The target hash.
+     * @param want        Indicating wether IPv4 or IPv6 are wanted in response.
+     *                    Use NetworkEngine::want()
+     * @param on_done     Request callback when the request is completed.
+     * @param on_expired  Request callback when the request expires.
+     *
+     * @return the request with information concerning its success.
+     */
+    Sp<Request> sendFindNode(Sp<Node> n,
+                             const InfoHash& hash,
+                             want_t want = -1,
+                             RequestCb&& on_done = {},
+                             RequestExpiredCb&& on_expired = {});
+    /**
+     * Send a "get" request to a given node.
+     *
+     * @param n           The node.
+     * @param hash        The target hash.
+     * @param query       The query describing filters.
+     * @param token       A security token.
+     * @param want        Indicating wether IPv4 or IPv6 are wanted in response.
+     *                    Use NetworkEngine::want()
+     * @param on_done     Request callback when the request is completed.
+     * @param on_expired  Request callback when the request expires.
+     *
+     * @return the request with information concerning its success.
+     */
+    Sp<Request> sendGetValues(Sp<Node> n,
+                              const InfoHash& hash,
+                              const Query& query,
+                              want_t want,
+                              RequestCb&& on_done,
+                              RequestExpiredCb&& on_expired);
+    /**
+     * Send a "listen" request to a given node.
+     *
+     * @param n           The node.
+     * @param hash        The storage's hash.
+     * @param query       The query describing filters.
+     * @param token       A security token.
+     * @param previous    The previous request "listen" sent to this node.
+     * @param socket      **UNUSED** The socket for further response.
+     *
+     *                    For backward compatibility purpose, sendListen has to
+     *                    handle creation of the socket. Therefor, you cannot
+     *                    use openSocket yourself. TODO: Once we don't support
+     *                    the old "listen" negociation, sendListen shall not
+     *                    create the socket itself.
+     *
+     * @param on_done     Request callback when the request is completed.
+     * @param on_expired  Request callback when the request expires.
+     * @param socket_cb   Callback to execute each time new updates arrive on
+     *                    the socket.
+     *
+     * @return the request with information concerning its success.
+     */
+    Sp<Request> sendListen(Sp<Node> n,
+                           const InfoHash& hash,
+                           const Query& query,
+                           const Blob& token,
+                           Sp<Request> previous,
+                           RequestCb&& on_done,
+                           RequestExpiredCb&& on_expired,
+                           SocketCb&& socket_cb);
+    /**
+     * Send a "announce" request to a given node.
+     *
+     * @param n           The node.
+     * @param hash        The target hash.
+     * @param created     The time when the value was created (avoiding extended
+     *                    value lifetime)
+     * @param token       A security token.
+     * @param on_done     Request callback when the request is completed.
+     * @param on_expired  Request callback when the request expires.
+     *
+     * @return the request with information concerning its success.
+     */
+    Sp<Request> sendAnnounceValue(Sp<Node> n,
+                                  const InfoHash& hash,
+                                  const Sp<Value>& v,
+                                  time_point created,
+                                  const Blob& token,
+                                  RequestCb&& on_done,
+                                  RequestExpiredCb&& on_expired);
+    /**
+     * Send a "refresh" request to a given node. Asks a node to keep the
+     * associated value Value.type.expiration more minutes in its storage.
+     *
+     * @param n           The node.
+     * @param hash        The target hash.
+     * @param vid         The value id.
+     * @param token       A security token.
+     * @param on_done     Request callback when the request is completed.
+     * @param on_expired  Request callback when the request expires.
+     *
+     * @return the request with information concerning its success.
+     */
+    Sp<Request> sendRefreshValue(Sp<Node> n,
+                                 const InfoHash& hash,
+                                 const Value::Id& vid,
+                                 const Blob& token,
+                                 RequestCb&& on_done,
+                                 RequestExpiredCb&& on_expired);
 
     /**
      * Parses a message and calls appropriate callbacks.
@@ -342,10 +394,12 @@ public:
      * @param fromlen  The length of the corresponding sockaddr structure.
      * @param now  The time to adjust the clock in the network engine.
      */
-    void processMessage(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen);
+    void processMessage(const uint8_t *buf, size_t buflen, const SockAddr& addr);
 
-    std::shared_ptr<Node> insertNode(const InfoHash& myid, const sockaddr* from, socklen_t fromlen) {
-        return cache.getNode(myid, from, fromlen, scheduler.time(), 0);
+    Sp<Node> insertNode(const InfoHash& myid, const SockAddr& addr) {
+        auto n = cache.getNode(myid, addr, scheduler.time(), 0);
+        onNewNode(n, 0);
+        return n;
     }
 
     std::vector<unsigned> getNodeMessageStats(bool in) {
@@ -355,113 +409,132 @@ public:
         return stats;
     }
 
-    void blacklistNode(const std::shared_ptr<Node>& n);
+    void blacklistNode(const Sp<Node>& n);
+
+    std::vector<Sp<Node>> getCachedNodes(const InfoHash& id, sa_family_t sa_f, size_t count) {
+        return cache.getCachedNodes(id, sa_f, count);
+    }
 
 private:
+
+    struct PartialMessage;
+
     /***************
      *  Constants  *
      ***************/
-    static constexpr long unsigned MAX_REQUESTS_PER_SEC {1600};
+    static constexpr size_t MAX_REQUESTS_PER_SEC {1600};
     /* the length of a node info buffer in ipv4 format */
-    static const constexpr size_t NODE4_INFO_BUF_LEN {26};
+    static const constexpr size_t NODE4_INFO_BUF_LEN {HASH_LEN + sizeof(in_addr) + sizeof(in_port_t)};
     /* the length of a node info buffer in ipv6 format */
-    static const constexpr size_t NODE6_INFO_BUF_LEN {38};
-    /* TODO */
+    static const constexpr size_t NODE6_INFO_BUF_LEN {HASH_LEN + sizeof(in6_addr) + sizeof(in_port_t)};
+    /* after a UDP reply, the period during which we tell the link layer about it */
     static constexpr std::chrono::seconds UDP_REPLY_TIME {15};
+
+    /* Max. time to receive a full fragmented packet */
+    static constexpr std::chrono::seconds RX_MAX_PACKET_TIME {10};
+    /* Max. time between packet fragments */
+    static constexpr std::chrono::seconds RX_TIMEOUT {3};
     /* The maximum number of nodes that we snub.  There is probably little
         reason to increase this value. */
     static constexpr unsigned BLACKLISTED_MAX {10};
-    /* TODO */
+
+    static constexpr size_t MTU {1280};
+    static constexpr size_t MAX_PACKET_VALUE_SIZE {600};
+
     static const std::string my_v;
 
-    /* DHT info */
-    const InfoHash& myid;
-    const int dht_socket {-1};
-    const int dht_socket6 {-1};
-    const Logger& DHT_LOG;
+    void process(std::unique_ptr<ParsedMessage>&&, const SockAddr& from);
 
-    NodeCache cache {};
-    sockaddr_storage blacklist[BLACKLISTED_MAX] {};
-    unsigned next_blacklisted = 0;
+    bool rateLimit(const SockAddr& addr);
 
-    bool rateLimit();
+    static bool isMartian(const SockAddr& addr);
+    bool isNodeBlacklisted(const SockAddr& addr) const;
 
-    static bool isMartian(const sockaddr* sa, socklen_t len);
-    bool isNodeBlacklisted(const sockaddr*, socklen_t) const;
-
-    void requestStep(std::shared_ptr<Request> req);
+    void requestStep(Sp<Request> req);
 
     /**
      * Sends a request to a node. Request::MAX_ATTEMPT_COUNT attempts will
      * be made before the request expires.
      */
-    void sendRequest(std::shared_ptr<Request>& request);
-
-    /**
-     * Generates a new request id, skipping the invalid id.
-     *
-     * @return the new id.
-     */
-    uint16_t getNewTid() {
-        ++transaction_id;
-        return transaction_id == TransId::INVALID ? ++transaction_id : transaction_id;
-    }
+    void sendRequest(const Sp<Request>& request);
 
     struct MessageStats {
-        unsigned ping {0};
-        unsigned find {0};
-        unsigned get {0};
-        unsigned put {0};
-        unsigned listen {0};
+        unsigned ping    {0};
+        unsigned find    {0};
+        unsigned get     {0};
+        unsigned put     {0};
+        unsigned listen  {0};
+        unsigned refresh {0};
     };
 
 
     // basic wrapper for socket sendto function
-    int send(const char *buf, size_t len, int flags, const sockaddr *sa, socklen_t salen);
+    int send(const char *buf, size_t len, int flags, const SockAddr& addr);
+
+    void sendValueParts(const TransId& tid, const std::vector<Blob>& svals, const SockAddr& addr);
+    std::vector<Blob> packValueHeader(msgpack::sbuffer&, const std::vector<Sp<Value>>&);
+    void maintainRxBuffer(Tid tid);
 
     /*************
      *  Answers  *
      *************/
     /* answer to a ping  request */
-    void sendPong(const sockaddr* sa, socklen_t salen, TransId tid);
+    void sendPong(const SockAddr& addr, Tid tid);
     /* answer to findnodes/getvalues request */
-    void sendNodesValues(const sockaddr* sa,
-            socklen_t salen,
-            TransId tid,
+    void sendNodesValues(const SockAddr& addr,
+            Tid tid,
             const Blob& nodes,
             const Blob& nodes6,
-            const std::vector<std::shared_ptr<Value>>& st,
+            const std::vector<Sp<Value>>& st,
+            const Query& query,
             const Blob& token);
-    Blob bufferNodes(sa_family_t af, const InfoHash& id, std::vector<std::shared_ptr<Node>>& nodes);
+    Blob bufferNodes(sa_family_t af, const InfoHash& id, std::vector<Sp<Node>>& nodes);
 
     std::pair<Blob, Blob> bufferNodes(sa_family_t af,
             const InfoHash& id,
             want_t want,
-            std::vector<std::shared_ptr<Node>>& nodes,
-            std::vector<std::shared_ptr<Node>>& nodes6);
+            std::vector<Sp<Node>>& nodes,
+            std::vector<Sp<Node>>& nodes6);
     /* answer to a listen request */
-    void sendListenConfirmation(const sockaddr* sa, socklen_t salen, TransId tid);
+    void sendListenConfirmation(const SockAddr& addr, Tid tid);
     /* answer to put request */
-    void sendValueAnnounced(const sockaddr* sa, socklen_t salen, TransId, Value::Id);
+    void sendValueAnnounced(const SockAddr& addr, Tid, Value::Id);
     /* answer in case of error */
-    void sendError(const sockaddr* sa,
-            socklen_t salen,
-            TransId tid,
+    void sendError(const SockAddr& addr,
+            Tid tid,
             uint16_t code,
             const std::string& message,
             bool include_id=false);
 
-    void deserializeNodesValues(ParsedMessage& msg);
+    void deserializeNodes(ParsedMessage& msg, const SockAddr& from);
 
-    std::queue<time_point> rate_limit_time {};
-    static std::mt19937 rd_device;
+    /* DHT info */
+    const InfoHash& myid;
+    const NetId network {0};
+    const int& dht_socket;
+    const int& dht_socket6;
+    const Logger& DHT_LOG;
+
+    NodeCache cache {};
+
+    // global limiting should be triggered by at least 8 different IPs
+    using IpLimiter = RateLimiter<MAX_REQUESTS_PER_SEC/8>;
+    using IpLimiterMap = std::map<SockAddr, IpLimiter, SockAddr::ipCmp>;
+    IpLimiterMap address_rate_limiter {};
+    RateLimiter<MAX_REQUESTS_PER_SEC> rate_limiter {};
+    size_t limiter_maintenance {0};
 
     // requests handling
-    uint16_t transaction_id {1};
-    std::map<uint16_t, std::shared_ptr<Request>> requests {};
+    std::map<Tid, Sp<Request>> requests {};
+    std::map<Tid, PartialMessage> partial_messages;
+
     MessageStats in_stats {}, out_stats {};
+    std::set<SockAddr> blacklist {};
 
     Scheduler& scheduler;
+
+    bool logIncoming_ {false};
 };
 
-}
+} /* namespace net  */
+} /* namespace dht */

include/opendht/node.h

@@ -1,7 +1,7 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
- *              Simon Désaulniers <sim.desaulniers@gmail.com>
+ *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -14,70 +14,136 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
 
 #include "infohash.h" // includes socket structures
 #include "utils.h"
+#include "sockaddr.h"
 
 #include <list>
+#include <map>
 
 namespace dht {
 
+struct Node;
+namespace net {
 struct Request;
+struct Socket;
+struct RequestAnswer;
+} /* namespace net */
+
+using Tid = uint32_t;
+using SocketCb = std::function<void(const Sp<Node>&, net::RequestAnswer&&)>;
+struct Socket {
+    Socket() {}
+    Socket(SocketCb&& on_receive) :
+        on_receive(std::move(on_receive)) {}
+    SocketCb on_receive {};
+};
 
 struct Node {
-    friend class NetworkEngine;
-
-    InfoHash id;
-
-    socklen_t sslen {0};
-    sockaddr_storage ss;
-
-    time_point time {time_point::min()};            /* last time eared about */
-    time_point reply_time {time_point::min()};      /* time of last correct reply received */
+    const InfoHash id;
 
+    Node(const InfoHash& id, const SockAddr& addr, bool client=false);
     Node(const InfoHash& id, const sockaddr* sa, socklen_t salen)
-        : id(id), sslen(salen), ss() {
-        std::copy_n((const uint8_t*)sa, salen, (uint8_t*)&ss);
-        if ((unsigned)salen < sizeof(ss))
-            std::fill_n((uint8_t*)&ss+salen, sizeof(ss)-salen, 0);
-    }
+        : Node(id, SockAddr(sa, salen)) {}
+
     InfoHash getId() const {
         return id;
     }
-    std::pair<const sockaddr*, socklen_t> getAddr() const {
-        return {(const sockaddr*)&ss, sslen};
-    }
+    const SockAddr& getAddr() const { return addr; }
     std::string getAddrStr() const {
-        return print_addr(ss, sslen);
+        return addr.toString();
     }
+    bool isClient() const { return is_client; }
+    bool isIncoming() { return time > reply_time; }
+
+    const time_point& getTime() const { return time; }
+    const time_point& getReplyTime() const { return reply_time; }
+    void setTime(const time_point& t) { time = t; }
+
+    /**
+     * Makes notice about an additionnal authentication error with this node. Up
+     * to MAX_AUTH_ERRORS errors are accepted in order to let the node recover.
+     * Upon this limit, the node expires.
+     */
+    void authError() {
+        if (++auth_errors > MAX_AUTH_ERRORS)
+            setExpired();
+    }
+    void authSuccess() { auth_errors = 0; }
+
     bool isExpired() const { return expired_; }
     bool isGood(time_point now) const;
     bool isPendingMessage() const;
     size_t getPendingMessageCount() const;
 
-    NodeExport exportNode() const { return NodeExport {id, ss, sslen}; }
-    sa_family_t getFamily() const { return ss.ss_family; }
+    bool isOld(const time_point& now) const {
+        return time + NODE_EXPIRE_TIME < now;
+    }
+    bool isRemovable(const time_point& now) const {
+        return isExpired() and isOld(now);
+    }
 
-    void update(const sockaddr* sa, socklen_t salen);
+    NodeExport exportNode() const {
+        NodeExport ne;
+        ne.id = id;
+        ne.sslen = addr.getLength();
+        std::memcpy(&ne.ss, addr.get(), ne.sslen);
+        return ne;
+    }
+    sa_family_t getFamily() const { return addr.getFamily(); }
 
-    void requested(std::shared_ptr<Request>& req);
-    void received(time_point now, std::shared_ptr<Request> req);
+    void update(const SockAddr&);
+
+    void requested(const Sp<net::Request>& req);
+    void received(time_point now, const Sp<net::Request>& req);
+    Sp<net::Request> getRequest(Tid tid);
+    void cancelRequest(const Sp<net::Request>& req);
 
     void setExpired();
 
+    /**
+     * Opens a socket on which a node will be able allowed to write for further
+     * additionnal updates following the response to a previous request.
+     *
+     * @param node  The node which will be allowed to write on this socket.
+     * @param cb    The callback to execute once updates arrive on the socket.
+     *
+     * @return the socket.
+     */
+    Tid openSocket(SocketCb&& cb);
+
+    Sp<Socket> getSocket(Tid id);
+
+    /**
+     * Closes a socket so that no further data will be red on that socket.
+     *
+     * @param socket  The socket to close.
+     */
+    void closeSocket(Tid id);
+
     /**
      * Resets the state of the node so it's not expired anymore.
      */
-    void reset() { expired_ = false; }
+    void reset() { expired_ = false; reply_time = time_point::min(); }
+
+    /**
+     * Generates a new request id, skipping the invalid id.
+     *
+     * @return the new id.
+     */
+    Tid getNewTid() {
+        ++transaction_id;
+        return transaction_id ? ++transaction_id : transaction_id;
+    }
 
     std::string toString() const;
 
-    friend std::ostream& operator<< (std::ostream& s, const Node& h);
+    OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const Node& h);
 
     static constexpr const std::chrono::minutes NODE_GOOD_TIME {120};
 
@@ -88,16 +154,20 @@ struct Node {
     static constexpr const std::chrono::seconds MAX_RESPONSE_TIME {1};
 
 private:
+    /* Number of times we accept authentication errors from this node. */
+    static const constexpr unsigned MAX_AUTH_ERRORS {3};
 
-    std::list<std::weak_ptr<Request>> requests_ {};
+    SockAddr addr;
+    bool is_client {false};
+    time_point time {time_point::min()};            /* last time eared about */
+    time_point reply_time {time_point::min()};      /* time of last correct reply received */
+    unsigned auth_errors {0};
     bool expired_ {false};
+    Tid transaction_id;
+    using TransactionDist = std::uniform_int_distribution<decltype(transaction_id)>;
 
-    void clearPendingQueue() {
-        requests_.remove_if([](std::weak_ptr<Request>& w) {
-            return w.expired();
-        });
-    }
-
+    std::map<Tid, Sp<net::Request>> requests_ {};
+    std::map<Tid, Sp<Socket>> sockets_;
 };
 
 }

include/opendht/node_cache.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -13,8 +13,7 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
@@ -27,8 +26,9 @@
 namespace dht {
 
 struct NodeCache {
-    std::shared_ptr<Node> getNode(const InfoHash& id, sa_family_t family);
-    std::shared_ptr<Node> getNode(const InfoHash& id, const sockaddr* sa, socklen_t sa_len, time_point now, int confirmed);
+    Sp<Node> getNode(const InfoHash& id, sa_family_t family);
+    Sp<Node> getNode(const InfoHash& id, const SockAddr&, time_point now, bool confirmed, bool client=false);
+    std::vector<Sp<Node>> getCachedNodes(const InfoHash& id, sa_family_t sa_f, size_t count) const;
 
     /**
      * Reset the connectivity state of every node,
@@ -37,14 +37,23 @@ struct NodeCache {
      */
     void clearBadNodes(sa_family_t family = 0);
 
+    ~NodeCache();
+
 private:
-    class NodeMap : public std::map<InfoHash, std::weak_ptr<Node>> {
+    class NodeMap : private std::map<InfoHash, std::weak_ptr<Node>> {
     public:
-        std::shared_ptr<Node> getNode(const InfoHash& id);
-        std::shared_ptr<Node> getNode(const InfoHash& id, const sockaddr* sa, socklen_t sa_len, time_point now, int confirmed);
+        Sp<Node> getNode(const InfoHash& id);
+        Sp<Node> getNode(const InfoHash& id, const SockAddr&, time_point now, bool confirmed, bool client);
+        std::vector<Sp<Node>> getCachedNodes(const InfoHash& id, size_t count) const;
         void clearBadNodes();
+        void setExpired();
+        void cleanup();
+    private:
+        size_t cleanup_counter {0};
     };
 
+    const NodeMap& cache(sa_family_t af) const { return af == AF_INET ? cache_4 : cache_6; }
+    NodeMap& cache(sa_family_t af) { return af == AF_INET ? cache_4 : cache_6; }
     NodeMap cache_4;
     NodeMap cache_6;
 };

include/opendht/peer_discovery.h

@@ -0,0 +1,121 @@
+/*
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Author(s) : Mingrui Zhang <mingrui.zhang@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "def.h"
+#include "sockaddr.h"
+#include "infohash.h"
+
+#include <thread>
+#include <mutex>
+#include <condition_variable>
+
+namespace dht {
+
+class OPENDHT_PUBLIC PeerDiscovery
+{
+public:
+
+    using PeerDiscoveredCallback = std::function<void(const InfoHash&, const SockAddr&)>;
+
+    PeerDiscovery(sa_family_t domain, in_port_t port);
+    ~PeerDiscovery();
+
+    /**
+     * startDiscovery - Keep Listening data from the sender until node is joinned or stop is called
+    */
+    void startDiscovery(PeerDiscoveredCallback callback);
+
+    /**
+     * startPublish - Keeping sending data until node is joinned or stop is called
+    */
+    void startPublish(const dht::InfoHash &nodeId, in_port_t port_to_send);
+
+    /**
+     * Thread Stopper
+    */
+    void stop();
+
+    /**
+     * Configure the sockopt to be able to listen multicast group
+    */
+    static void socketJoinMulticast(int sockfd, sa_family_t family);
+
+    /**
+     * Join the threads
+    */
+    void join() {
+        if(running_listen.joinable()) running_listen.join();
+        if(running_send.joinable()) running_send.join();
+    }
+
+private:
+    std::mutex mtx_;
+    std::condition_variable cv_;
+    bool running_ {true};
+    sa_family_t domain_ {AF_UNSPEC};
+    int port_;
+    int sockfd_ {-1};
+    int stop_writefd_ {-1};
+
+    SockAddr sockAddrSend_;
+    std::array<uint8_t,dht::InfoHash::size() + sizeof(in_port_t)> data_send_;
+
+    //Thread export to be joined
+    std::thread running_listen;
+    std::thread running_send;
+    dht::InfoHash nodeId_;
+
+    /**
+     * Multicast Socket Initialization, accept IPV4, IPV6
+    */
+    static int initialize_socket(sa_family_t domain);
+
+    /**
+     * Send messages
+    */
+    void sendTo(uint8_t *buf,size_t buf_size);
+
+    /**
+     * Receive messages
+    */
+    SockAddr recvFrom(uint8_t *buf, size_t &buf_size);
+
+    /**
+     * Send thread loop
+    */
+    void sender_thread();
+
+    /**
+     * Listener thread loop
+    */
+    void listener_thread(PeerDiscoveredCallback callback);
+
+    /**
+     * Listener Parameters Setup
+    */
+    void listener_setup();
+
+    /**
+     * Sender Parameters Setup
+    */
+    void sender_setup(const dht::InfoHash& nodeId, in_port_t port_to_send);
+};
+
+}

include/opendht/proxy.h

@@ -0,0 +1,31 @@
+/*
+ *  Copyright (C) 2017-2019 Savoir-faire Linux Inc.
+ *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include <chrono>
+
+namespace dht {
+namespace proxy {
+
+constexpr const std::chrono::seconds OP_TIMEOUT {1 * 60 * 60}; // one hour
+constexpr const std::chrono::seconds OP_MARGIN {5 * 60}; // 5 minutes
+constexpr const char* const HTTP_PROTO {"http://"};
+using ListenToken = uint64_t;
+
+}
+}

include/opendht/rate_limiter.h

@@ -0,0 +1,50 @@
+/*
+ *  Copyright (C) 2017-2019 Savoir-faire Linux Inc.
+ *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "utils.h"
+#include <queue>
+
+namespace dht {
+
+template<size_t Quota, unsigned long Period=1>
+class RateLimiter {
+public:
+    /** Clear outdated records and return current quota usage */
+    size_t maintain(const time_point& now) {
+        auto limit = now - std::chrono::seconds(Period);
+        while (not records.empty() and records.front() < limit)
+            records.pop();
+        return records.size();
+    }
+    /** Return false if quota is reached, insert record and return true otherwise. */
+    bool limit(const time_point& now) {
+        if (maintain(now) >= Quota)
+            return false;
+        records.emplace(now);
+        return true;
+    }
+    bool empty() const {
+        return records.empty();
+    }
+private:
+    std::queue<time_point> records {};
+};
+
+}

include/opendht/rng.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -13,18 +13,19 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
 
 #include <random>
+#include <algorithm>
+#include <functional>
 
 namespace dht {
 namespace crypto {
 
-#ifndef WIN32_NATIVE
+#ifndef _MSC_VER
 #ifdef _WIN32
 
 /**
@@ -42,8 +43,8 @@ public:
      * result_type is unsigned int so this is currently safe.
      */
     static_assert(
-        sizeof(result_type) == 2 || 
-        sizeof(result_type) == 4 || 
+        sizeof(result_type) == 2 ||
+        sizeof(result_type) == 4 ||
         sizeof(result_type) == 8,
         "result_type must be 16, 32 or 64 bits");
 
@@ -107,4 +108,14 @@ using random_device = std::random_device;
 using random_device = std::random_device;
 #endif
 
+template<class T = std::mt19937, std::size_t N = T::state_size>
+auto getSeededRandomEngine () -> typename std::enable_if<!!N, T>::type {
+    typename T::result_type random_data[N];
+    random_device source;
+    std::generate(std::begin(random_data), std::end(random_data), std::ref(source));
+    std::seed_seq seeds(std::begin(random_data), std::end(random_data));
+    T seededEngine (seeds);
+    return seededEngine;
+}
+
 }} // dht::crypto

include/opendht/routing_table.h

@@ -1,6 +1,7 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -13,8 +14,7 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
@@ -23,27 +23,42 @@
 
 namespace dht {
 
+static constexpr unsigned TARGET_NODES {8};
+namespace net {
+class NetworkEngine;
+}
+
 struct Bucket {
     Bucket() : cached() {}
     Bucket(sa_family_t af, const InfoHash& f = {}, time_point t = time_point::min())
         : af(af), first(f), time(t), cached() {}
     sa_family_t af {0};
     InfoHash first {};
-    time_point time {time_point::min()};             /* time of last reply in this bucket */
-    std::list<std::shared_ptr<Node>> nodes {};
-    std::shared_ptr<Node> cached;                    /* the address of a likely candidate */
+    time_point time {time_point::min()}; /* time of last reply in this bucket */
+    std::list<Sp<Node>> nodes {};
+    Sp<Node> cached;                    /* the address of a likely candidate */
 
     /** Return a random node in a bucket. */
-    std::shared_ptr<Node> randomNode();
+    Sp<Node> randomNode();
+
+    void sendCachedPing(net::NetworkEngine& ne);
+    void connectivityChanged() {
+        time = time_point::min();
+        for (auto& node : nodes)
+            node->setTime(time_point::min());
+    }
 };
 
 class RoutingTable : public std::list<Bucket> {
 public:
     using std::list<Bucket>::list;
 
+    time_point grow_time {time_point::min()};
+    bool is_client {false};
+
     InfoHash middle(const RoutingTable::const_iterator&) const;
 
-    std::vector<std::shared_ptr<Node>> findClosestNodes(const InfoHash id, time_point now, size_t count = TARGET_NODES) const;
+    std::vector<Sp<Node>> findClosestNodes(const InfoHash id, time_point now, size_t count = TARGET_NODES) const;
 
     RoutingTable::iterator findBucket(const InfoHash& id);
     RoutingTable::const_iterator findBucket(const InfoHash& id) const;
@@ -63,6 +78,14 @@ public:
         return empty() || (size() == 1 && front().nodes.empty());
     }
 
+    void connectivityChanged(const time_point& now) {
+        grow_time = now;
+        for (auto& b : *this)
+            b.connectivityChanged();
+    }
+
+    bool onNewNode(const Sp<Node>& node, int comfirm, const time_point& now, const InfoHash& myid, net::NetworkEngine& ne);
+
     /**
      * Return a random id in the bucket's range.
      */

include/opendht/scheduler.h

@@ -1,7 +1,7 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
- *              Simon Désaulniers <sim.desaulniers@gmail.com>
+ *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -14,8 +14,7 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 
@@ -37,8 +36,9 @@ namespace dht {
 class Scheduler {
 public:
     struct Job {
-        Job(std::function<void()>&& f) : do_(std::forward<std::function<void()>>(f)) {}
+        Job(std::function<void()>&& f) : do_(std::move(f)) {}
         std::function<void()> do_;
+        void cancel() { do_ = {}; }
     };
 
     /**
@@ -49,27 +49,33 @@ public:
      *
      * @return pointer to the newly scheduled job.
      */
-    std::shared_ptr<Scheduler::Job> add(time_point t, std::function<void()>&& job_func) {
-        auto job = std::make_shared<Job>(std::forward<std::function<void()>>(job_func));
+    Sp<Scheduler::Job> add(time_point t, std::function<void()>&& job_func) {
+        auto job = std::make_shared<Job>(std::move(job_func));
         if (t != time_point::max())
             timers.emplace(std::move(t), job);
         return job;
     }
 
+    void add(const Sp<Scheduler::Job>& job, time_point t) {
+        if (t != time_point::max())
+            timers.emplace(std::move(t), job);
+    }
+
     /**
      * Reschedules a job.
      *
-     * @param time  The time at which the job shall be rescheduled.
      * @param job  The job to edit.
-     *
-     * @return pointer to the newly scheduled job.
+     * @param t  The time at which the job shall be rescheduled.
      */
-    void edit(std::shared_ptr<Scheduler::Job>& job, time_point t) {
+    void edit(Sp<Scheduler::Job>& job, time_point t) {
         if (not job) {
-            std::cerr << "editing an empty job" << std::endl;
             return;
         }
-        job = add(t, std::move(job->do_));
+        // std::function move doesn't garantee to leave the object empty.
+        // Force clearing old value.
+        auto task = std::move(job->do_);
+        job->do_ = {};
+        job = add(t, std::move(task));
     }
 
     /**
@@ -89,17 +95,16 @@ public:
             if (timer->first > now)
                 break;
 
-            const auto& job = *timer->second;
-            if (job.do_)
-                job.do_();
+            auto job = std::move(timer->second);
             timers.erase(timer);
+
+            if (job->do_)
+                job->do_();
         }
         return getNextJobTime();
     }
 
     inline time_point getNextJobTime() const {
-        //if (not timers.empty())
-        //    std::cout << "Next job in " << print_dt(timers.begin()->first - clock::now()) << std::endl;
         return timers.empty() ? time_point::max() : timers.begin()->first;
     }
 
@@ -112,7 +117,7 @@ public:
 
 private:
     time_point now {clock::now()};
-    std::multimap<time_point, std::shared_ptr<Job>> timers {}; /* the jobs ordered by time */
+    std::multimap<time_point, Sp<Job>> timers {}; /* the jobs ordered by time */
 };
 
 }

include/opendht/securedht.h

@@ -1,6 +1,8 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
- *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
+ *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -13,19 +15,7 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
- *
- *  Additional permission under GNU GPL version 3 section 7:
- *
- *  If you modify this program, or any covered work, by linking or
- *  combining it with the OpenSSL project's OpenSSL library (or a
- *  modified version of that library), containing parts covered by the
- *  terms of the OpenSSL or SSLeay licenses, Savoir-faire Linux Inc.
- *  grants you additional permission to convey the resulting work.
- *  Corresponding Source for a non-source form of such a combination
- *  shall include the source code for the parts of OpenSSL used as well
- *  as that of the covered work.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
@@ -40,13 +30,21 @@
 
 namespace dht {
 
-class SecureDht : public Dht {
+class OPENDHT_PUBLIC SecureDht final : public DhtInterface {
 public:
 
     typedef std::function<void(bool)> SignatureCheckCallback;
 
     using Config = SecureDhtConfig;
 
+    static dht::Config getConfig(const SecureDht::Config& conf)
+    {
+        auto c = conf.node_config;
+        if (not c.node_id and conf.id.second)
+            c.node_id = InfoHash::get("node:"+conf.id.second->getId().toString());
+        return c;
+    }
+
     SecureDht() {}
 
     /**
@@ -55,13 +53,16 @@ public:
      * id:    the identity to use for the crypto layer and to compute
      *        our own hash on the Dht.
      */
-    SecureDht(int s, int s6, Config config);
+    SecureDht(std::unique_ptr<DhtInterface> dht, Config config);
 
     virtual ~SecureDht();
 
     InfoHash getId() const {
         return key_ ? key_->getPublicKey().getId() : InfoHash();
     }
+    PkId getLongId() const {
+        return key_ ? key_->getPublicKey().getLongId() : PkId();
+    }
 
     ValueType secureType(ValueType&& type);
 
@@ -70,14 +71,17 @@ public:
         return secureType(std::move(tmp_type));
     }
 
-    virtual void registerType(const ValueType& type) {
-        Dht::registerType(secureType(type));
+    void registerType(const ValueType& type) override {
+        if (dht_)
+            dht_->registerType(secureType(type));
     }
-    virtual void registerType(ValueType&& type) {
-        Dht::registerType(secureType(std::forward<ValueType>(type)));
+    void registerType(ValueType&& type) {
+        if (dht_)
+            dht_->registerType(secureType(std::forward<ValueType>(type)));
     }
-    virtual void registerInsecureType(const ValueType& type) {
-        Dht::registerType(type);
+    void registerInsecureType(const ValueType& type) {
+        if (dht_)
+            dht_->registerType(type);
     }
 
     /**
@@ -85,23 +89,21 @@ public:
      * If the signature can't be checked, or if the data can't be decrypted, it is not returned.
      * Public, non-signed & non-encrypted data is retransmitted as-is.
      */
-    virtual void get(const InfoHash& id, GetCallback cb, DoneCallback donecb={}, Value::Filter&& = {}) override;
-    virtual void get(const InfoHash& id, GetCallback cb, DoneCallbackSimple donecb={}, Value::Filter&& f = {}) override {
-        get(id, cb, bindDoneCb(donecb), std::forward<Value::Filter>(f));
+    void get(const InfoHash& id, GetCallback cb, DoneCallback donecb={}, Value::Filter&& = {}, Where&& w = {}) override;
+    void get(const InfoHash& id, GetCallback cb, DoneCallbackSimple donecb={}, Value::Filter&& f = {}, Where&& w = {}) override {
+        get(id, cb, bindDoneCb(donecb), std::forward<Value::Filter>(f), std::forward<Where>(w));
     }
-    virtual void get(const InfoHash& key, GetCallbackSimple cb, DoneCallback donecb={}, Value::Filter&& f={}) override {
-        get(key, bindGetCb(cb), donecb, std::forward<Value::Filter>(f));
+    void get(const InfoHash& key, GetCallbackSimple cb, DoneCallback donecb={}, Value::Filter&& f={}, Where&& w = {}) override {
+        get(key, bindGetCb(cb), donecb, std::forward<Value::Filter>(f), std::forward<Where>(w));
     }
-    virtual void get(const InfoHash& key, GetCallbackSimple cb, DoneCallbackSimple donecb, Value::Filter&& f={}) override {
-        get(key, bindGetCb(cb), bindDoneCb(donecb), std::forward<Value::Filter>(f));
+    void get(const InfoHash& key, GetCallbackSimple cb, DoneCallbackSimple donecb, Value::Filter&& f={}, Where&& w = {}) override {
+        get(key, bindGetCb(cb), bindDoneCb(donecb), std::forward<Value::Filter>(f), std::forward<Where>(w));
     }
 
-    virtual size_t listen(const InfoHash& id, GetCallback cb, Value::Filter&& = {}) override;
-
     /**
      * Will take ownership of the value, sign it using our private key and put it in the DHT.
      */
-    void putSigned(const InfoHash& hash, std::shared_ptr<Value> val, DoneCallback callback, bool permanent = false);
+    void putSigned(const InfoHash& hash, Sp<Value> val, DoneCallback callback, bool permanent = false);
     void putSigned(const InfoHash& hash, Value&& v, DoneCallback callback, bool permanent = false) {
         putSigned(hash, std::make_shared<Value>(std::move(v)), callback, permanent);
     }
@@ -111,7 +113,7 @@ public:
      * and put it in the DHT.
      * The operation will be immediate if the recipient' public key is known (otherwise it will be retrived first).
      */
-    void putEncrypted(const InfoHash& hash, const InfoHash& to, std::shared_ptr<Value> val, DoneCallback callback, bool permanent = false);
+    void putEncrypted(const InfoHash& hash, const InfoHash& to, Sp<Value> val, DoneCallback callback, bool permanent = false);
     void putEncrypted(const InfoHash& hash, const InfoHash& to, Value&& v, DoneCallback callback, bool permanent = false) {
         putEncrypted(hash, to, std::make_shared<Value>(std::move(v)), callback, permanent);
     }
@@ -125,17 +127,14 @@ public:
 
     Value decrypt(const Value& v);
 
-    void findCertificate(const InfoHash& node, std::function<void(const std::shared_ptr<crypto::Certificate>)> cb);
-    void findPublicKey(const InfoHash& node, std::function<void(const std::shared_ptr<crypto::PublicKey>)> cb);
+    void findCertificate(const InfoHash& node, const std::function<void(const Sp<crypto::Certificate>)>& cb);
+    void findPublicKey(const InfoHash& node, const std::function<void(const Sp<const crypto::PublicKey>)>& cb);
 
-    const std::shared_ptr<crypto::Certificate> registerCertificate(const InfoHash& node, const Blob& cert);
-    void registerCertificate(std::shared_ptr<crypto::Certificate>& cert);
+    const Sp<crypto::Certificate> registerCertificate(const InfoHash& node, const Blob& cert);
+    void registerCertificate(Sp<crypto::Certificate>& cert);
 
-    const std::shared_ptr<crypto::Certificate> getCertificate(const InfoHash& node) const;
-    const std::shared_ptr<crypto::PublicKey> getPublicKey(const InfoHash& node) const;
-
-
-    
+    const Sp<crypto::Certificate> getCertificate(const InfoHash& node) const;
+    const Sp<const crypto::PublicKey> getPublicKey(const InfoHash& node) const;
 
     /**
      * Allows to set a custom callback called by the library to find a locally-stored certificate.
@@ -146,30 +145,213 @@ public:
         localQueryMethod_ = std::move(query_method);
     }
 
+    /**
+     * SecureDht to Dht proxy
+     */
+    void shutdown(ShutdownCallback cb) override {
+        dht_->shutdown(cb);
+    }
+    void dumpTables() const override {
+        dht_->dumpTables();
+    }
+    inline const InfoHash& getNodeId() const override { return dht_->getNodeId(); }
+
+    std::pair<size_t, size_t> getStoreSize() const override {
+        return dht_->getStoreSize();
+    }
+    std::string getStorageLog() const override {
+        return dht_->getStorageLog();
+    }
+    std::string getStorageLog(const InfoHash& h) const override {
+        return dht_->getStorageLog(h);
+    }
+    void setStorageLimit(size_t limit = DEFAULT_STORAGE_LIMIT) override {
+        dht_->setStorageLimit(limit);
+    }
+    std::vector<NodeExport> exportNodes() const override {
+        return dht_->exportNodes();
+    }
+    std::vector<ValuesExport> exportValues() const override {
+        return dht_->exportValues();
+    }
+    void importValues(const std::vector<ValuesExport>& v) override {
+        dht_->importValues(v);
+    }
+    NodeStats getNodesStats(sa_family_t af) const override {
+        return dht_->getNodesStats(af);
+    }
+    std::vector<unsigned> getNodeMessageStats(bool in = false) override {
+        return dht_->getNodeMessageStats(in);
+    }
+    std::string getRoutingTablesLog(sa_family_t af) const override {
+        return dht_->getRoutingTablesLog(af);
+    }
+    std::string getSearchesLog(sa_family_t af) const override {
+        return dht_->getSearchesLog(af);
+    }
+    std::string getSearchLog(const InfoHash& h, sa_family_t af = AF_UNSPEC) const override {
+        return dht_->getSearchLog(h, af);
+    }
+    std::vector<SockAddr> getPublicAddress(sa_family_t family = 0) override {
+        return dht_->getPublicAddress(family);
+    }
+    time_point periodic(const uint8_t *buf, size_t buflen, const SockAddr& sa) override {
+        return dht_->periodic(buf, buflen, sa);
+    }
+    time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen) override {
+        return dht_->periodic(buf, buflen, from, fromlen);
+    }
+    NodeStatus getStatus(sa_family_t af) const override {
+        return dht_->getStatus(af);
+    }
+    NodeStatus getStatus() const override {
+        return dht_->getStatus();
+    }
+    bool isRunning(sa_family_t af = 0) const override {
+        return dht_->isRunning(af);
+    }
+    const ValueType& getType(ValueType::Id type_id) const override {
+        return dht_->getType(type_id);
+    }
+    void insertNode(const InfoHash& id, const SockAddr& sa) override {
+        dht_->insertNode(id, sa);
+    }
+    void insertNode(const InfoHash& id, const sockaddr* sa, socklen_t salen) override {
+        dht_->insertNode(id, sa, salen);
+    }
+    void insertNode(const NodeExport& n) override {
+        dht_->insertNode(n);
+    }
+    void pingNode(const sockaddr* sa, socklen_t salen, DoneCallbackSimple&& cb={}) override {
+        dht_->pingNode(sa, salen, std::move(cb));
+    }
+    void query(const InfoHash& key, QueryCallback cb, DoneCallback done_cb = {}, Query&& q = {}) override {
+        dht_->query(key, cb, done_cb, std::move(q));
+    }
+    void query(const InfoHash& key, QueryCallback cb, DoneCallbackSimple done_cb = {}, Query&& q = {}) override {
+        dht_->query(key, cb, done_cb, std::move(q));
+    }
+    std::vector<Sp<Value>> getLocal(const InfoHash& key, const Value::Filter& f = {}) const override {
+        return dht_->getLocal(key, f);
+    }
+    Sp<Value> getLocalById(const InfoHash& key, Value::Id vid) const override {
+        return dht_->getLocalById(key, vid);
+    }
+    void put(const InfoHash& key,
+            Sp<Value> v,
+            DoneCallback cb=nullptr,
+            time_point created=time_point::max(),
+            bool permanent = false) override
+    {
+        dht_->put(key, v, cb, created, permanent);
+    }
+    void put(const InfoHash& key,
+            const Sp<Value>& v,
+            DoneCallbackSimple cb,
+            time_point created=time_point::max(),
+            bool permanent = false) override
+    {
+        dht_->put(key, v, cb, created, permanent);
+    }
+
+    void put(const InfoHash& key,
+            Value&& v,
+            DoneCallback cb=nullptr,
+            time_point created=time_point::max(),
+            bool permanent = false) override
+    {
+        dht_->put(key, std::move(v), cb, created, permanent);
+    }
+    void put(const InfoHash& key,
+            Value&& v,
+            DoneCallbackSimple cb,
+            time_point created=time_point::max(),
+            bool permanent = false) override
+    {
+        dht_->put(key, std::move(v), cb, created, permanent);
+    }
+    std::vector<Sp<Value>> getPut(const InfoHash& h) const override {
+        return dht_->getPut(h);
+    }
+    Sp<Value> getPut(const InfoHash& h, const Value::Id& vid) const override {
+        return dht_->getPut(h, vid);
+    }
+    bool cancelPut(const InfoHash& h, const Value::Id& vid) override {
+        return dht_->cancelPut(h, vid);
+    }
+
+    size_t listen(const InfoHash& key, ValueCallback, Value::Filter={}, Where={}) override;
+    size_t listen(const InfoHash& key, GetCallback cb, Value::Filter = {}, Where w = {}) override;
+    size_t listen(const InfoHash& key, GetCallbackSimple cb, Value::Filter f={}, Where w = {}) override {
+        return listen(key, bindGetCb(cb), f, w);
+    }
+    bool cancelListen(const InfoHash& h, size_t token) override {
+        return dht_->cancelListen(h, token);
+    }
+    void connectivityChanged(sa_family_t af) override {
+        dht_->connectivityChanged(af);
+    }
+    void connectivityChanged() override {
+        dht_->connectivityChanged();
+    }
+
+    void forwardAllMessages(bool forward) {
+        forward_all_ = forward;
+    }
+
+    void setPushNotificationToken(const std::string& token = "") override {
+        dht_->setPushNotificationToken(token);
+    }
+
+    /**
+     * Call linked callback with push_notification
+     * @param notification to process
+     */
+    void pushNotificationReceived(const std::map<std::string, std::string>& notification) override {
+        dht_->pushNotificationReceived(notification);
+    }
+
+    void setLoggers(LogMethod error = NOLOG, LogMethod warn = NOLOG, LogMethod debug = NOLOG) override
+    {
+        DhtInterface::setLoggers(error, warn, debug);
+        dht_->setLoggers(error, warn, debug);
+    }
+
+    /**
+     * Only print logs related to the given InfoHash (if given), or disable filter (if zeroes).
+     */
+    void setLogFilter(const InfoHash& f) override {
+        DHT_LOG.setFilter(f);
+        dht_->setLogFilter(f);
+    }
+
 private:
+    std::unique_ptr<DhtInterface> dht_;
     // prevent copy
     SecureDht(const SecureDht&) = delete;
     SecureDht& operator=(const SecureDht&) = delete;
 
-    GetCallback getCallbackFilter(GetCallback, Value::Filter&&);
+    Sp<Value> checkValue(const Sp<Value>& v);
+    ValueCallback getCallbackFilter(const ValueCallback&, Value::Filter&&);
+    GetCallback getCallbackFilter(const GetCallback&, Value::Filter&&);
 
-    std::shared_ptr<crypto::PrivateKey> key_ {};
-    std::shared_ptr<crypto::Certificate> certificate_ {};
+    Sp<crypto::PrivateKey> key_ {};
+    Sp<crypto::Certificate> certificate_ {};
 
     // method to query the local certificate store
     CertificateStoreQuery localQueryMethod_ {};
 
     // our certificate cache
-    std::map<InfoHash, std::shared_ptr<crypto::Certificate>> nodesCertificates_ {};
-    std::map<InfoHash, std::shared_ptr<crypto::PublicKey>> nodesPubKeys_ {};
+    std::map<InfoHash, Sp<crypto::Certificate>> nodesCertificates_ {};
+    std::map<InfoHash, Sp<const crypto::PublicKey>> nodesPubKeys_ {};
 
-    std::uniform_int_distribution<Value::Id> rand_id {};
+    std::atomic_bool forward_all_ {false};
 };
 
 const ValueType CERTIFICATE_TYPE = {
     8, "Certificate", std::chrono::hours(24 * 7),
-    // A certificate can only be stored at it's public key ID.
-    [](InfoHash id, std::shared_ptr<Value>& v, InfoHash, const sockaddr*, socklen_t) {
+    // A certificate can only be stored at its public key ID.
+    [](InfoHash id, Sp<Value>& v, const InfoHash&, const SockAddr&) {
         try {
             crypto::Certificate crt(v->data);
             // TODO check certificate signature
@@ -177,7 +359,7 @@ const ValueType CERTIFICATE_TYPE = {
         } catch (const std::exception& e) {}
         return false;
     },
-    [](InfoHash, const std::shared_ptr<Value>& o, std::shared_ptr<Value>& n, InfoHash, const sockaddr*, socklen_t) {
+    [](InfoHash, const Sp<Value>& o, Sp<Value>& n, const InfoHash&, const SockAddr&) {
         try {
             return crypto::Certificate(o->data).getPublicKey().getId() == crypto::Certificate(n->data).getPublicKey().getId();
         } catch (const std::exception& e) {}

include/opendht/sockaddr.h

@@ -0,0 +1,300 @@
+/*
+ *  Copyright (C) 2016-2019 Savoir-faire Linux Inc.
+ *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "def.h"
+
+#ifndef _WIN32
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#ifdef __ANDROID__
+typedef uint16_t in_port_t;
+#endif
+#else
+#include <iso646.h>
+#include <stdint.h>
+#include <winsock2.h>
+#include <ws2def.h>
+#include <ws2tcpip.h>
+typedef uint16_t sa_family_t;
+typedef uint16_t in_port_t;
+#endif
+
+#include <string>
+#include <memory>
+#include <vector>
+#include <stdlib.h>
+
+#include <cstring>
+#include <cstddef>
+
+namespace dht {
+
+OPENDHT_PUBLIC std::string print_addr(const sockaddr* sa, socklen_t slen);
+OPENDHT_PUBLIC std::string print_addr(const sockaddr_storage& ss, socklen_t sslen);
+
+/**
+ * A Socket Address (sockaddr*), with abstraction for IPv4, IPv6 address families.
+ */
+class OPENDHT_PUBLIC SockAddr {
+public:
+    SockAddr() {}
+    SockAddr(const SockAddr& o) {
+        set(o.get(), o.getLength());
+    }
+    SockAddr(SockAddr&& o) noexcept : len(o.len), addr(std::move(o.addr)) {
+        o.len = 0;
+    }
+
+    /**
+     * Build from existing address.
+     */
+    SockAddr(const sockaddr* sa, socklen_t length) {
+        if (length > sizeof(sockaddr_storage))
+            throw std::runtime_error("Socket address length is too large");
+        set(sa, length);
+    }
+    SockAddr(const sockaddr* sa) {
+        socklen_t len = 0;
+        if (sa) {
+            if (sa->sa_family == AF_INET)
+                len = sizeof(sockaddr_in);
+            else if(sa->sa_family == AF_INET6)
+                len = sizeof(sockaddr_in6);
+            else
+                throw std::runtime_error("Unknown address family");
+        }
+        set(sa, len);
+    }
+
+    /**
+     * Build from an existing sockaddr_storage structure.
+     */
+    SockAddr(const sockaddr_storage& ss, socklen_t len) : SockAddr((const sockaddr*)&ss, len) {}
+
+    static std::vector<SockAddr> resolve(const std::string& host, const std::string& service = {});
+
+    bool operator<(const SockAddr& o) const {
+        if (len != o.len)
+            return len < o.len;
+        return std::memcmp((const uint8_t*)get(), (const uint8_t*)o.get(), len) < 0;
+    }
+
+    bool equals(const SockAddr& o) const {
+        return len == o.len
+            && std::memcmp((const uint8_t*)get(), (const uint8_t*)o.get(), len) == 0;
+    }
+    SockAddr& operator=(const SockAddr& o) {
+        set(o.get(), o.getLength());
+        return *this;
+    }
+    SockAddr& operator=(SockAddr&& o) {
+        len = o.len;
+        o.len = 0;
+        addr = std::move(o.addr);
+        return *this;
+    }
+
+    std::string toString() const {
+        return print_addr(get(), getLength());
+    }
+
+    /**
+     * Returns the address family or AF_UNSPEC if the address is not set.
+     */
+    sa_family_t getFamily() const { return len > sizeof(sa_family_t) ? addr->sa_family : AF_UNSPEC; }
+
+    /**
+     * Resize the managed structure to the appropriate size (if needed),
+     * in which case the sockaddr structure is cleared to zero,
+     * and set the address family field (sa_family).
+     */
+    void setFamily(sa_family_t af) {
+        socklen_t new_length;
+        switch(af) {
+        case AF_INET:
+            new_length = sizeof(sockaddr_in);
+            break;
+        case AF_INET6:
+            new_length = sizeof(sockaddr_in6);
+            break;
+        default:
+            new_length = 0;
+        }
+        if (new_length != len) {
+            len = new_length;
+            if (len) addr.reset((sockaddr*)::calloc(len, 1));
+            else     addr.reset();
+        }
+        if (len > sizeof(sa_family_t))
+            addr->sa_family = af;
+    }
+
+    /**
+     * Set Network Interface to any
+     */
+    void setAny() {
+        auto family = getFamily();
+        switch(family) {
+        case AF_INET:
+            getIPv4().sin_addr.s_addr = htonl(INADDR_ANY);
+            break;
+        case AF_INET6:
+            getIPv6().sin6_addr = in6addr_any;
+            break;
+        }
+    }
+
+    /**
+     * Retreive the port (in host byte order) or 0 if the address is not
+     * of a supported family.
+     */
+    in_port_t getPort() const {
+        switch(getFamily()) {
+        case AF_INET:
+            return ntohs(getIPv4().sin_port);
+        case AF_INET6:
+            return ntohs(getIPv6().sin6_port);
+        default:
+            return 0;
+        }
+    }
+    /**
+     * Set the port. The address must be of a supported family.
+     * @param p The port in host byte order.
+     */
+    void setPort(in_port_t p) {
+        switch(getFamily()) {
+        case AF_INET:
+            getIPv4().sin_port = htons(p);
+            break;
+        case AF_INET6:
+            getIPv6().sin6_port = htons(p);
+            break;
+        }
+    }
+
+    /**
+     * Set the address part of the socket address from a numeric IP address (string representation).
+     * Family must be already set. Throws in case of parse failue.
+     */
+    void setAddress(const char* address);
+
+    /**
+     * Returns the accessible byte length at the pointer returned by #get().
+     * If zero, #get() returns null.
+     */
+    socklen_t getLength() const { return len; }
+
+    /**
+     * An address is defined to be true if its length is not zero.
+     */
+    explicit operator bool() const noexcept {
+        return len;
+    }
+
+    /**
+     * Returns the address to the managed sockaddr structure.
+     * The accessible length is returned by #getLength().
+     */
+    const sockaddr* get() const { return addr.get(); }
+
+    /**
+     * Returns the address to the managed sockaddr structure.
+     * The accessible length is returned by #getLength().
+     */
+    sockaddr* get() { return addr.get(); }
+
+    const sockaddr_in& getIPv4() const {
+        return *reinterpret_cast<const sockaddr_in*>(get());
+    }
+    const sockaddr_in6& getIPv6() const {
+        return *reinterpret_cast<const sockaddr_in6*>(get());
+    }
+    sockaddr_in& getIPv4() {
+        return *reinterpret_cast<sockaddr_in*>(get());
+    }
+    sockaddr_in6& getIPv6() {
+        return *reinterpret_cast<sockaddr_in6*>(get());
+    }
+
+    /**
+     * Return true if address is a loopback IP address.
+     */
+    bool isLoopback() const;
+
+    /**
+     * Return true if address is not a public IP address.
+     */
+    bool isPrivate() const;
+
+    bool isUnspecified() const;
+
+    bool isMappedIPv4() const;
+    SockAddr getMappedIPv4() const;
+
+    /**
+     * A comparator to classify IP addresses, only considering the
+     * first 64 bits in IPv6.
+     */
+    struct ipCmp {
+        bool operator()(const SockAddr& a, const SockAddr& b) const {
+            if (a.len != b.len)
+                return a.len < b.len;
+            socklen_t start, len;
+            switch(a.getFamily()) {
+                case AF_INET:
+                    start = offsetof(sockaddr_in, sin_addr);
+                    len = sizeof(in_addr);
+                    break;
+                case AF_INET6:
+                    start = offsetof(sockaddr_in6, sin6_addr);
+                    // don't consider more than 64 bits (IPv6)
+                    len = 8;
+                    break;
+                default:
+                    start = 0;
+                    len = a.len;
+                    break;
+            }
+            return std::memcmp((uint8_t*)a.get()+start,
+                               (uint8_t*)b.get()+start, len) < 0;
+        }
+    };
+private:
+    socklen_t len {0};
+    struct free_delete { void operator()(void* p) { ::free(p); } };
+    std::unique_ptr<sockaddr, free_delete> addr {};
+
+    void set(const sockaddr* sa, socklen_t length) {
+        if (len != length) {
+            len = length;
+            if (len) addr.reset((sockaddr*)::malloc(len));
+            else     addr.reset();
+        }
+        if (len)
+            std::memcpy((uint8_t*)get(), (const uint8_t*)sa, len);
+    }
+
+};
+
+OPENDHT_PUBLIC bool operator==(const SockAddr& a, const SockAddr& b);
+
+}

include/opendht/utils.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -13,24 +13,15 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
 
-#define WANT4 1
-#define WANT6 2
+#include "def.h"
 
 #include <msgpack.hpp>
 
-#ifndef _WIN32
-#include <sys/socket.h>
-#else
-#include <ws2def.h>
-#include <ws2tcpip.h>
-#endif
-
 #include <chrono>
 #include <random>
 #include <functional>
@@ -38,16 +29,22 @@
 
 #include <cstdarg>
 
+#define WANT4 1
+#define WANT6 2
+
+/**
+ * OpenDHT C++ namespace
+ */
 namespace dht {
 
-static constexpr unsigned TARGET_NODES {8};
-
-using Address = std::pair<sockaddr_storage, socklen_t>;
+using NetId = uint32_t;
 using want_t = int_fast8_t;
 
-std::string print_addr(const sockaddr* sa, socklen_t slen);
-std::string print_addr(const sockaddr_storage& ss, socklen_t sslen);
-std::string printAddr(const Address& addr);
+OPENDHT_PUBLIC const char* version();
+
+// shortcut for std::shared_ptr
+template<class T>
+using Sp = std::shared_ptr<T>;
 
 template <typename Key, typename Item, typename Condition>
 void erase_if(std::map<Key, Item>& map, const Condition& condition)
@@ -59,12 +56,23 @@ void erase_if(std::map<Key, Item>& map, const Condition& condition)
     }
 }
 
-class DhtException : public std::runtime_error {
-    public:
-        DhtException(const std::string &str = "") :
-            std::runtime_error("DhtException occured: " + str) {}
+/**
+ * Split "[host]:port" or "host:port" to pair<"host", "port">.
+ */
+OPENDHT_PUBLIC std::pair<std::string, std::string>
+splitPort(const std::string& s);
+
+class OPENDHT_PUBLIC DhtException : public std::runtime_error {
+public:
+    DhtException(const std::string &str = "") :
+        std::runtime_error("DhtException occurred: " + str) {}
 };
 
+class OPENDHT_PUBLIC SocketException : public DhtException {
+public:
+    SocketException(int err) :
+        DhtException(strerror(err)) {}
+};
 
 // Time related definitions and utility functions
 
@@ -84,9 +92,6 @@ print_dt(DT d) {
     return std::chrono::duration_cast<std::chrono::duration<double>>(d).count();
 }
 
-static /*constexpr*/ const time_point TIME_INVALID = {time_point::min()};
-static /*constexpr*/ const time_point TIME_MAX {time_point::max()};
-
 template <typename Duration = duration>
 class uniform_duration_distribution : public std::uniform_int_distribution<typename Duration::rep> {
     using Base = std::uniform_int_distribution<typename Duration::rep>;
@@ -103,53 +108,17 @@ public:
     }
 };
 
-// Logging related utility functions
-
-/**
- * Dummy function used to disable logging
- */
-inline void NOLOG(char const*, va_list) {}
-
-/**
- * Wrapper for logging methods
- */
-struct LogMethod {
-    LogMethod() = default;
-
-    template<typename T>
-    LogMethod(T&& t) : func(std::forward<T>(t)) {}
-
-    void operator()(char const* format, ...) const {
-        va_list args;
-        va_start(args, format);
-        func(format, args);
-        va_end(args);
-    }
-
-    void logPrintable(const uint8_t *buf, size_t buflen) const {
-        std::string buf_clean(buflen, '\0');
-        for (size_t i=0; i<buflen; i++)
-            buf_clean[i] = isprint(buf[i]) ? buf[i] : '.';
-        (*this)("%s", buf_clean.c_str());
-    }
-private:
-    std::function<void(char const*, va_list)> func;
-};
-
-struct Logger {
-    LogMethod DEBUG = NOLOG;
-    LogMethod WARN = NOLOG;
-    LogMethod ERR = NOLOG;
-};
-
 // Serialization related definitions and utility functions
 
+/**
+ * Arbitrary binary data.
+ */
 using Blob = std::vector<uint8_t>;
 
 /**
  * Provides backward compatibility with msgpack 1.0
  */
-Blob unpackBlob(msgpack::object& o);
+OPENDHT_PUBLIC Blob unpackBlob(msgpack::object& o);
 
 template <typename Type>
 Blob
@@ -169,4 +138,6 @@ unpackMsg(Blob b) {
 
 msgpack::unpacked unpackMsg(Blob b);
 
+msgpack::object* findMapValue(msgpack::object& map, const std::string& key);
+
 } // namespace dht

include/opendht/value.h

@@ -1,7 +1,7 @@
 /*
- *  Copyright (C) 2014-2016 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
- *              Simon Désaulniers <sim.desaulniers@gmail.com>
+ *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -14,8 +14,7 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
 #pragma once
@@ -23,6 +22,7 @@
 #include "infohash.h"
 #include "crypto.h"
 #include "utils.h"
+#include "sockaddr.h"
 
 #include <msgpack.hpp>
 
@@ -35,10 +35,16 @@
 #include <functional>
 #include <memory>
 #include <chrono>
+#include <set>
+
+#ifdef OPENDHT_JSONCPP
+#include <json/json.h>
+#endif
 
 namespace dht {
 
 struct Value;
+struct Query;
 
 /**
  * A storage policy is applied once to every incoming value storage requests.
@@ -50,7 +56,7 @@ struct Value;
  * @param form_addr: network address of the incoming request.
  * @param from_len: network address lendth of the incoming request.
  */
-using StorePolicy = std::function<bool(InfoHash key, std::shared_ptr<Value>& value, InfoHash from, const sockaddr* from_addr, socklen_t from_len)>;
+using StorePolicy = std::function<bool(InfoHash key, std::shared_ptr<Value>& value, const InfoHash& from, const SockAddr& addr)>;
 
 /**
  * An edition policy is applied once to every incoming value storage requests,
@@ -66,15 +72,15 @@ using StorePolicy = std::function<bool(InfoHash key, std::shared_ptr<Value>& val
  * @param form_addr: network address of the incoming request.
  * @param from_len: network address lendth of the incoming request.
  */
-using EditPolicy = std::function<bool(InfoHash key, const std::shared_ptr<Value>& old_val, std::shared_ptr<Value>& new_val, InfoHash from, const sockaddr* from_addr, socklen_t from_len)>;
+using EditPolicy = std::function<bool(InfoHash key, const std::shared_ptr<Value>& old_val, std::shared_ptr<Value>& new_val, const InfoHash& from, const SockAddr& addr)>;
 
-static constexpr const size_t MAX_VALUE_SIZE {1024 * 14};
+static constexpr const size_t MAX_VALUE_SIZE {1024 * 64};
 
-struct ValueType {
+struct OPENDHT_PUBLIC ValueType {
     typedef uint16_t Id;
 
-    static bool DEFAULT_STORE_POLICY(InfoHash, std::shared_ptr<Value>& v, InfoHash, const sockaddr*, socklen_t);
-    static bool DEFAULT_EDIT_POLICY(InfoHash, const std::shared_ptr<Value>&, std::shared_ptr<Value>&, InfoHash, const sockaddr*, socklen_t) {
+    static bool DEFAULT_STORE_POLICY(InfoHash, const std::shared_ptr<Value>& v, const InfoHash&, const SockAddr&);
+    static bool DEFAULT_EDIT_POLICY(InfoHash, const std::shared_ptr<Value>&, std::shared_ptr<Value>&, const InfoHash&, const SockAddr&) {
         return false;
     }
 
@@ -103,6 +109,21 @@ struct ValueType {
     EditPolicy editPolicy {DEFAULT_EDIT_POLICY};
 };
 
+class TypeStore {
+public:
+    void registerType(const ValueType& type) {
+        types[type.id] = type;
+    }
+    const ValueType& getType(ValueType::Id type_id) const {
+        const auto& t_it = types.find(type_id);
+        return (t_it == types.end()) ? ValueType::USER_DATA : t_it->second;
+    }
+private:
+    std::map<ValueType::Id, ValueType> types {};
+};
+
+struct CryptoValueCache;
+
 /**
  * A "value" is data potentially stored on the Dht, with some metadata.
  *
@@ -112,14 +133,29 @@ struct ValueType {
  * Values are stored at a given InfoHash in the Dht, but also have a
  * unique ID to distinguish between values stored at the same location.
  */
-struct Value
+struct OPENDHT_PUBLIC Value
 {
+    enum class Field : int {
+        None = 0,
+        Id,        /* Value::id */
+        ValueType, /* Value::type */
+        OwnerPk,   /* Value::owner */
+        SeqNum,    /* Value::seq */
+        UserType,  /* Value::user_type */
+
+        COUNT      /* the total number of fields */
+    };
+
     typedef uint64_t Id;
-    static const Id INVALID_ID {0};
+    static const constexpr Id INVALID_ID {0};
 
     class Filter : public std::function<bool(const Value&)> {
-        using std::function<bool(const Value&)>::function;
     public:
+        Filter() {}
+
+        template<typename Functor>
+        Filter(Functor f) : std::function<bool(const Value&)>::function(f) {}
+
         Filter chain(Filter&& f2) {
             auto f1 = *this;
             return chain(std::move(f1), std::move(f2));
@@ -129,31 +165,56 @@ struct Value
             return chainOr(std::move(f1), std::move(f2));
         }
         static Filter chain(Filter&& f1, Filter&& f2) {
+            if (not f1) return std::move(f2);
+            if (not f2) return std::move(f1);
+            return [f1,f2](const Value& v) {
+                return f1(v) and f2(v);
+            };
+        }
+        static Filter chain(const Filter& f1, const Filter& f2) {
             if (not f1) return f2;
             if (not f2) return f1;
             return [f1,f2](const Value& v) {
                 return f1(v) and f2(v);
             };
         }
-        static Filter chain(std::initializer_list<Filter> l) {
-            const std::vector<Filter> list(l.begin(), l.end());
-            return [list](const Value& v){
-                for (const auto& f : list)
+        static Filter chainAll(std::vector<Filter>&& set) {
+            if (set.empty()) return {};
+            return std::bind([](const Value& v, std::vector<Filter>& s) {
+                for (const auto& f : s)
                     if (f and not f(v))
                         return false;
                 return true;
-            };
+            }, std::placeholders::_1, std::move(set));
+        }
+        static Filter chain(std::initializer_list<Filter> l) {
+            return chainAll(std::vector<Filter>(l.begin(), l.end()));
         }
         static Filter chainOr(Filter&& f1, Filter&& f2) {
-            if (not f1 or not f2) return AllFilter();
+            if (not f1 or not f2) return {};
             return [f1,f2](const Value& v) {
                 return f1(v) or f2(v);
             };
         }
+        static Filter notFilter(Filter&& f) {
+            if (not f) return [](const Value&) { return false; };
+            return [f](const Value& v) { return not f(v); };
+        }
+        std::vector<Sp<Value>> filter(const std::vector<Sp<Value>>& values) {
+            if (not (*this))
+                return values;
+            std::vector<Sp<Value>> ret;
+            for (const auto& v : values)
+                if ((*this)(v))
+                    ret.emplace_back(v);
+            return ret;
+        }
     };
 
+    /* Sneaky functions disguised in classes */
+
     static const Filter AllFilter() {
-        return [](const Value&){return true;};
+        return {};
     }
 
     static Filter TypeFilter(const ValueType& t) {
@@ -162,6 +223,11 @@ struct Value
             return v.type == tid;
         };
     }
+    static Filter TypeFilter(const ValueType::Id& tid) {
+        return [tid](const Value& v) {
+            return v.type == tid;
+        };
+    }
 
     static Filter IdFilter(const Id id) {
         return [id](const Value& v) {
@@ -169,12 +235,34 @@ struct Value
         };
     }
 
-    static Filter recipientFilter(const InfoHash& r) {
+    static Filter RecipientFilter(const InfoHash& r) {
         return [r](const Value& v) {
             return v.recipient == r;
         };
     }
 
+    static Filter OwnerFilter(const crypto::PublicKey& pk) {
+        return OwnerFilter(pk.getId());
+    }
+
+    static Filter OwnerFilter(const InfoHash& pkh) {
+        return [pkh](const Value& v) {
+            return v.owner and v.owner->getId() == pkh;
+        };
+    }
+
+    static Filter SeqNumFilter(uint16_t seq_no) {
+        return [seq_no](const Value& v) {
+            return v.seq == seq_no;
+        };
+    }
+
+    static Filter UserTypeFilter(const std::string& ut) {
+        return [ut](const Value& v) {
+            return v.user_type == ut;
+        };
+    }
+
     class SerializableBase
     {
     public:
@@ -248,6 +336,43 @@ struct Value
         return owner and not signature.empty();
     }
 
+    /**
+     * Sign the value using the provided private key.
+     * Afterward, checkSignature() will return true and owner will
+     * be set to the corresponding public key.
+     */
+    void sign(const crypto::PrivateKey& key) {
+        if (isEncrypted())
+            throw DhtException("Can't sign encrypted data.");
+        owner = std::make_shared<const crypto::PublicKey>(key.getPublicKey());
+        signature = key.sign(getToSign());
+    }
+
+    /**
+     * Check that the value is signed and that the signature matches.
+     * If true, the owner field will contain the signer public key.
+     */
+    bool checkSignature() const {
+        return isSigned() and owner->checkSignature(getToSign(), signature);
+    }
+
+    std::shared_ptr<const crypto::PublicKey> getOwner() const {
+        return std::static_pointer_cast<const crypto::PublicKey>(owner);
+    }
+
+    /**
+     * Sign the value with from and returns the encrypted version for to.
+     */
+    Value encrypt(const crypto::PrivateKey& from, const crypto::PublicKey& to) {
+        if (isEncrypted())
+            throw DhtException("Data is already encrypted.");
+        setRecipient(to.getId());
+        sign(from);
+        Value nv {id};
+        nv.setCypher(to.encrypt(getToEncrypt()));
+        return nv;
+    }
+
     Value() {}
 
     Value (Id id) : id(id) {}
@@ -260,6 +385,14 @@ struct Value
     Value(ValueType::Id t, const uint8_t* dat_ptr, size_t dat_len, Id id = INVALID_ID)
      : id(id), type(t), data(dat_ptr, dat_ptr+dat_len) {}
 
+#ifdef OPENDHT_JSONCPP
+    /**
+     * Build a value from a json object
+     * @param json
+     */
+    Value(Json::Value& json);
+#endif
+
     template <typename Type>
     Value(ValueType::Id t, const Type& d, Id id = INVALID_ID)
      : id(id), type(t), data(packMsg(d)) {}
@@ -323,7 +456,7 @@ struct Value
     }
 
     /** print value for debugging */
-    friend std::ostream& operator<< (std::ostream& s, const Value& v);
+    OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const Value& v);
 
     std::string toString() const {
         std::stringstream ss;
@@ -331,6 +464,18 @@ struct Value
         return ss.str();
     }
 
+#ifdef OPENDHT_JSONCPP
+    /**
+     * Build a json object from a value
+     * Example:
+     * {
+     *  "data":"base64ofdata",
+     *   id":"0", "seq":0,"type":3
+     * }
+     */
+    Json::Value toJson() const;
+#endif
+
     /** Return the size in bytes used by this value in memory (minimum). */
     size_t size() const;
 
@@ -338,11 +483,11 @@ struct Value
     void msgpack_pack_to_sign(Packer& pk) const
     {
         bool has_owner = owner && *owner;
-        pk.pack_map((user_type.empty()?0:1) + (has_owner?(recipient == InfoHash() ? 4 : 5):2));
+        pk.pack_map((user_type.empty()?0:1) + (has_owner?(recipient ? 5 : 4):2));
         if (has_owner) { // isSigned
             pk.pack(std::string("seq"));   pk.pack(seq);
             pk.pack(std::string("owner")); owner->msgpack_pack(pk);
-            if (recipient != InfoHash()) {
+            if (recipient) {
                 pk.pack(std::string("to")); pk.pack(recipient);
             }
         }
@@ -378,15 +523,51 @@ struct Value
         pk.pack(std::string("dat")); msgpack_pack_to_encrypt(pk);
     }
 
+    template <typename Packer>
+    void msgpack_pack_fields(const std::set<Value::Field>& fields, Packer& pk) const
+    {
+        for (const auto& field : fields)
+            switch (field) {
+                case Value::Field::Id:
+                    pk.pack(static_cast<uint64_t>(id));
+                    break;
+                case Value::Field::ValueType:
+                    pk.pack(static_cast<uint64_t>(type));
+                    break;
+                case Value::Field::OwnerPk:
+                    if (owner)
+                        owner->msgpack_pack(pk);
+                    else
+                        InfoHash().msgpack_pack(pk);
+                    break;
+                case Value::Field::SeqNum:
+                    pk.pack(static_cast<uint64_t>(seq));
+                    break;
+                case Value::Field::UserType:
+                    pk.pack(user_type);
+                    break;
+                default:
+                    break;
+            }
+    }
+
     void msgpack_unpack(msgpack::object o);
     void msgpack_unpack_body(const msgpack::object& o);
+    Blob getPacked() const {
+        msgpack::sbuffer buffer;
+        msgpack::packer<msgpack::sbuffer> pk(&buffer);
+        pk.pack(*this);
+        return {buffer.data(), buffer.data()+buffer.size()};
+    }
+
+    void msgpack_unpack_fields(const std::set<Value::Field>& fields, const msgpack::object& o, unsigned offset);
 
     Id id {INVALID_ID};
 
     /**
      * Public key of the signer.
      */
-    std::shared_ptr<crypto::PublicKey> owner {};
+    std::shared_ptr<const crypto::PublicKey> owner {};
 
     /**
      * Hash of the recipient (optional).
@@ -420,10 +601,370 @@ struct Value
      * Hold encrypted version of the data.
      */
     Blob cypher {};
+
+private:
+    friend class SecureDht;
+    /* Cache for crypto ops */
+    bool signatureChecked {false};
+    bool signatureValid {false};
+    bool decrypted {false};
+    Sp<Value> decryptedValue {};
 };
 
 using ValuesExport = std::pair<InfoHash, Blob>;
 
+/**
+ * @class   FieldValue
+ * @brief   Describes a value filter.
+ * @details
+ * This structure holds the value for a specified field. It's type can either be
+ * uint64_t, InfoHash or Blob.
+ */
+struct OPENDHT_PUBLIC FieldValue
+{
+    FieldValue() {}
+    FieldValue(Value::Field f, uint64_t int_value) : field(f), intValue(int_value) {}
+    FieldValue(Value::Field f, InfoHash hash_value) : field(f), hashValue(hash_value) {}
+    FieldValue(Value::Field f, Blob blob_value) : field(f), blobValue(blob_value) {}
+
+    bool operator==(const FieldValue& fd) const;
+
+    // accessors
+    Value::Field getField() const { return field; }
+    uint64_t getInt() const { return intValue; }
+    InfoHash getHash() const { return hashValue; }
+    Blob getBlob() const { return blobValue; }
+
+    template <typename Packer>
+    void msgpack_pack(Packer& p) const {
+        p.pack_map(2);
+        p.pack(std::string("f")); p.pack(static_cast<uint8_t>(field));
+
+        p.pack(std::string("v"));
+        switch (field) {
+            case Value::Field::Id:
+            case Value::Field::ValueType:
+                p.pack(intValue);
+                break;
+            case Value::Field::OwnerPk:
+                p.pack(hashValue);
+                break;
+            case Value::Field::UserType:
+                p.pack_bin(blobValue.size());
+                p.pack_bin_body((const char*)blobValue.data(), blobValue.size());
+                break;
+            default:
+                throw msgpack::type_error();
+        }
+    }
+
+    void msgpack_unpack(msgpack::object msg) {
+        hashValue = {};
+        blobValue.clear();
+
+        if (auto f = findMapValue(msg, "f"))
+            field = (Value::Field)f->as<unsigned>();
+        else
+            throw msgpack::type_error();
+
+        auto v = findMapValue(msg, "v");
+        if (not v)
+            throw msgpack::type_error();
+        else
+            switch (field) {
+                case Value::Field::Id:
+                case Value::Field::ValueType:
+                    intValue = v->as<decltype(intValue)>();
+                    break;
+                case Value::Field::OwnerPk:
+                    hashValue = v->as<decltype(hashValue)>();
+                    break;
+                case Value::Field::UserType:
+                    blobValue = unpackBlob(*v);
+                    break;
+                default:
+                    throw msgpack::type_error();
+            }
+    }
+
+    Value::Filter getLocalFilter() const;
+
+private:
+    Value::Field field {Value::Field::None};
+    // three possible value types
+    uint64_t intValue {};
+    InfoHash hashValue {};
+    Blob blobValue {};
+};
+
+/**
+ * @class   Select
+ * @brief   Serializable Value field selection.
+ * @details
+ * This is a container for a list of FieldSelectorDescription instances. It
+ * describes a complete SELECT query for dht::Value.
+ */
+struct OPENDHT_PUBLIC Select
+{
+    Select() { }
+    Select(const std::string& q_str);
+
+    bool isSatisfiedBy(const Select& os) const;
+
+    /**
+     * Selects a field of type Value::Field.
+     *
+     * @param field  the field to require.
+     *
+     * @return the resulting Select instance.
+     */
+    Select& field(Value::Field field) {
+        if (std::find(fieldSelection_.begin(), fieldSelection_.end(), field) == fieldSelection_.end())
+            fieldSelection_.emplace_back(field);
+        return *this;
+    }
+
+    /**
+     * Computes the set of selected fields based on previous require* calls.
+     *
+     * @return the set of fields.
+     */
+    std::set<Value::Field> getSelection() const {
+        return {fieldSelection_.begin(), fieldSelection_.end()};
+    }
+
+    template <typename Packer>
+    void msgpack_pack(Packer& pk) const { pk.pack(fieldSelection_); }
+    void msgpack_unpack(const msgpack::object& o) {
+        fieldSelection_ = o.as<decltype(fieldSelection_)>();
+    }
+
+    std::string toString() const {
+        std::stringstream ss;
+        ss << *this;
+        return ss.str();
+    }
+
+    OPENDHT_PUBLIC friend std::ostream& operator<<(std::ostream& s, const dht::Select& q);
+private:
+    std::vector<Value::Field> fieldSelection_ {};
+};
+
+/**
+ * @class   Where
+ * @brief   Serializable dht::Value filter.
+ * @details
+ * This is container for a list of FieldValue instances. It describes a
+ * complete WHERE query for dht::Value.
+ */
+struct OPENDHT_PUBLIC Where
+{
+    Where() { }
+    Where(const std::string& q_str);
+
+    bool isSatisfiedBy(const Where& where) const;
+
+    /**
+     * Adds restriction on Value::Id based on the id argument.
+     *
+     * @param id  the id.
+     *
+     * @return the resulting Where instance.
+     */
+    Where& id(Value::Id id) {
+        FieldValue fv {Value::Field::Id, id};
+        if (std::find(filters_.begin(), filters_.end(), fv) == filters_.end())
+            filters_.emplace_back(std::move(fv));
+        return *this;
+    }
+
+    /**
+     * Adds restriction on Value::ValueType based on the type argument.
+     *
+     * @param type  the value type.
+     *
+     * @return the resulting Where instance.
+     */
+    Where& valueType(ValueType::Id type) {
+        FieldValue fv {Value::Field::ValueType, type};
+        if (std::find(filters_.begin(), filters_.end(), fv) == filters_.end())
+            filters_.emplace_back(std::move(fv));
+        return *this;
+    }
+
+    /**
+     * Adds restriction on Value::OwnerPk based on the owner_pk_hash argument.
+     *
+     * @param owner_pk_hash  the owner public key fingerprint.
+     *
+     * @return the resulting Where instance.
+     */
+    Where& owner(InfoHash owner_pk_hash) {
+        FieldValue fv {Value::Field::OwnerPk, owner_pk_hash};
+        if (std::find(filters_.begin(), filters_.end(), fv) == filters_.end())
+            filters_.emplace_back(std::move(fv));
+        return *this;
+    }
+
+    /**
+     * Adds restriction on Value::OwnerPk based on the owner_pk_hash argument.
+     *
+     * @param owner_pk_hash  the owner public key fingerprint.
+     *
+     * @return the resulting Where instance.
+     */
+    Where& seq(uint16_t seq_no) {
+        FieldValue fv {Value::Field::SeqNum, seq_no};
+        if (std::find(filters_.begin(), filters_.end(), fv) == filters_.end())
+            filters_.emplace_back(std::move(fv));
+        return *this;
+    }
+
+    /**
+     * Adds restriction on Value::UserType based on the user_type argument.
+     *
+     * @param user_type  the user type.
+     *
+     * @return the resulting Where instance.
+     */
+    Where& userType(std::string user_type) {
+        FieldValue fv {Value::Field::UserType, Blob {user_type.begin(), user_type.end()}};
+        if (std::find(filters_.begin(), filters_.end(), fv) == filters_.end())
+            filters_.emplace_back(std::move(fv));
+        return *this;
+    }
+
+    /**
+     * Computes the Value::Filter based on the list of field value set.
+     *
+     * @return the resulting Value::Filter.
+     */
+    Value::Filter getFilter() const {
+        if (filters_.empty()) return {};
+        std::vector<Value::Filter> fset;
+        fset.reserve(filters_.size());
+        for (const auto& f : filters_) {
+            if (auto lf = f.getLocalFilter())
+                fset.emplace_back(std::move(lf));
+        }
+        return Value::Filter::chainAll(std::move(fset));
+    }
+
+    template <typename Packer>
+    void msgpack_pack(Packer& pk) const { pk.pack(filters_); }
+    void msgpack_unpack(const msgpack::object& o) {
+        filters_.clear();
+        filters_ = o.as<decltype(filters_)>();
+    }
+
+    std::string toString() const {
+        std::stringstream ss;
+        ss << *this;
+        return ss.str();
+    }
+
+    bool empty() const {
+        return filters_.empty();
+    }
+
+    OPENDHT_PUBLIC friend std::ostream& operator<<(std::ostream& s, const dht::Where& q);
+
+private:
+    std::vector<FieldValue> filters_;
+};
+
+/**
+ * @class   Query
+ * @brief   Describes a query destined to another peer.
+ * @details
+ * This class describes the list of filters on field values and the field
+ * itselves to include in the peer response to a GET operation. See
+ * FieldValue.
+ */
+struct OPENDHT_PUBLIC Query
+{
+    static const std::string QUERY_PARSE_ERROR;
+
+    Query(Select s = {}, Where w = {}, bool none = false) : select(std::move(s)), where(std::move(w)), none(none) { };
+
+    /**
+     * Initializes a query based on a SQL-ish formatted string. The abstract
+     * form of such a string is the following:
+     *
+     *  [SELECT $field$ [WHERE $field$=$value$]]
+     *
+     *  where
+     *
+     *  - $field$ = *|id|value_type|owner_pk|user_type
+     *  - $value$ = $string$|$integer$
+     *  - $string$: a simple string WITHOUT SPACES.
+     *  - $integer$: a simple integer.
+     */
+    Query(std::string q_str) {
+        auto pos_W = q_str.find("WHERE");
+        auto pos_w = q_str.find("where");
+        auto pos = std::min(pos_W != std::string::npos ? pos_W : q_str.size(),
+                            pos_w != std::string::npos ? pos_w : q_str.size());
+        select = q_str.substr(0, pos);
+        where = q_str.substr(pos, q_str.size()-pos);
+    }
+
+    /**
+     * Tell if the query is satisfied by another query.
+     */
+    bool isSatisfiedBy(const Query& q) const;
+
+    template <typename Packer>
+    void msgpack_pack(Packer& pk) const {
+        pk.pack_map(2);
+        pk.pack(std::string("s")); pk.pack(select); /* packing field selectors */
+        pk.pack(std::string("w")); pk.pack(where);  /* packing filters */
+    }
+
+    void msgpack_unpack(const msgpack::object& o);
+
+    std::string toString() const {
+        std::stringstream ss;
+        ss << *this;
+        return ss.str();
+    }
+
+    OPENDHT_PUBLIC friend std::ostream& operator<<(std::ostream& s, const dht::Query& q) {
+        return s << "Query[" << q.select << " " << q.where << "]";
+    }
+
+    Select select {};
+    Where where {};
+    bool none {false}; /* When true, any query satisfies this. */
+};
+
+/*!
+ * @class   FieldValueIndex
+ * @brief   An index for field values.
+ * @details
+ * This structures is meant to manipulate a subset of fields normally contained
+ * in Value.
+ */
+struct OPENDHT_PUBLIC FieldValueIndex {
+    FieldValueIndex() {}
+    FieldValueIndex(const Value& v, const Select& s = {});
+    /**
+     * Tells if all the fields of this are contained in the other
+     * FieldValueIndex with the same value.
+     *
+     * @param other  The other FieldValueIndex instance.
+     */
+    bool containedIn(const FieldValueIndex& other) const;
+
+    OPENDHT_PUBLIC friend std::ostream& operator<<(std::ostream& os, const FieldValueIndex& fvi);
+
+    void msgpack_unpack_fields(const std::set<Value::Field>& fields,
+            const msgpack::object& o,
+            unsigned offset);
+
+    std::map<Value::Field, FieldValue> index {};
+};
+
 template <typename T,
           typename std::enable_if<std::is_base_of<Value::SerializableBase, T>::value, T>::type* = nullptr>
 Value::Filter
@@ -460,7 +1001,7 @@ template <typename T,
 Value::Filter
 getFilterSet()
 {
-    return Value::AllFilter();
+    return {};
 }
 
 template <class T>
@@ -476,4 +1017,10 @@ unpackVector(const std::vector<std::shared_ptr<Value>>& vals) {
     return ret;
 }
 
+#ifdef OPENDHT_JSONCPP
+uint64_t unpackId(const Json::Value& json, const std::string& key);
+#endif
+
 }
+
+MSGPACK_ADD_ENUM(dht::Value::Field)

opendht.pc.in

@@ -6,4 +6,6 @@ Name: OpenDHT
 Description: C++ Distributed Hash Table library
 Version: @VERSION@
 Libs: -L${libdir} -lopendht
+Libs.private: -lpthread
+Requires.private: gnutls >= 3.1@argon2_lib@
 Cflags: -I${includedir}

python/CMakeLists.txt

@@ -9,3 +9,6 @@ add_custom_target(python ALL
     DEPENDS opendht opendht_cpp.pxd opendht.pyx)
 
 install(CODE "execute_process(COMMAND python3 setup.py install --root=\$ENV{DESTDIR}/ WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})")
+if (OPENDHT_TOOLS)
+	install(PROGRAMS tools/dhtcluster.py DESTINATION ${CMAKE_INSTALL_BINDIR} RENAME dhtcluster)
+endif()

python/Makefile.am

@@ -1,5 +1,9 @@
 if USE_CYTHON
 
+noinst_HEADERS = \
+	opendht.pyx \
+	opendht_cpp.pxd
+
 PYTHON_INSTALL_RECORD = $(builddir)/install_record.txt
 
 pybuild.stamp:

python/opendht.pyx

@@ -5,7 +5,7 @@
 # distutils: libraries = opendht gnutls
 # cython: language_level=3
 #
-# Copyright (c) 2015-2016 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
 # Author(s): Guillaume Roguez <guillaume.roguez@savoirfairelinux.com>
 #            Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
@@ -25,12 +25,13 @@
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with OpenDHT Python Wrapper. If not, see <http://www.gnu.org/licenses/>.
+# along with OpenDHT Python Wrapper. If not, see <https://www.gnu.org/licenses/>.
 
 from libcpp.map cimport map as map
 from libcpp cimport bool
 from libcpp.utility cimport pair
 from libcpp.string cimport string
+from libcpp.memory cimport shared_ptr
 
 from cython.parallel import parallel, prange
 from cython.operator cimport dereference as deref, preincrement as inc, predecrement as dec
@@ -56,13 +57,15 @@ cdef inline void shutdown_callback(void* user_data) with gil:
         cbs['shutdown']()
     ref.Py_DECREF(cbs)
 
-cdef inline bool get_callback(cpp.shared_ptr[cpp.Value] value, void *user_data) with gil:
-    cb = (<object>user_data)['get']
+cdef inline bool get_callback(shared_ptr[cpp.Value] value, void *user_data) with gil:
+    cbs = <object>user_data
+    cb = cbs['get']
+    f = cbs['filter'] if 'filter' in cbs else None
     pv = Value()
     pv._value = value
-    return cb(pv)
+    return cb(pv) if not f or f(pv) else True
 
-cdef inline void done_callback(bool done, cpp.vector[cpp.shared_ptr[cpp.Node]]* nodes, void *user_data) with gil:
+cdef inline void done_callback(bool done, cpp.vector[shared_ptr[cpp.Node]]* nodes, void *user_data) with gil:
     node_ids = []
     for n in deref(nodes):
         h = NodeEntry()
@@ -89,9 +92,9 @@ cdef class _WithID(object):
 cdef class InfoHash(_WithID):
     cdef cpp.InfoHash _infohash
     def __cinit__(self, bytes str=b''):
-        self._infohash = cpp.InfoHash(str)
+        self._infohash = cpp.InfoHash(str) if str else cpp.InfoHash()
     def __bool__(InfoHash self):
-        return not (self._infohash == cpp.InfoHash())
+        return <bool>self._infohash
     def __richcmp__(InfoHash self, InfoHash other, int op):
         if op == 0:
             return self._infohash < other._infohash
@@ -124,8 +127,31 @@ cdef class InfoHash(_WithID):
         h._infohash = cpp.InfoHash.getRandom()
         return h
 
+cdef class SockAddr(object):
+    cdef cpp.SockAddr _addr
+    def toString(SockAddr self):
+        return self._addr.toString()
+    def getPort(SockAddr self):
+        return self._addr.getPort()
+    def getFamily(SockAddr self):
+        return self._addr.getFamily()
+    def setPort(SockAddr self, cpp.in_port_t port):
+        return self._addr.setPort(port)
+    def setFamily(SockAddr self, cpp.sa_family_t af):
+        return self._addr.setFamily(af)
+    def isLoopback(SockAddr self):
+        return self._addr.isLoopback()
+    def isPrivate(SockAddr self):
+        return self._addr.isPrivate()
+    def isUnspecified(SockAddr self):
+        return self._addr.isUnspecified()
+    def __str__(self):
+        return self.toString().decode()
+    def __repr__(self):
+        return "<%s '%s'>" % (self.__class__.__name__, str(self))
+
 cdef class Node(_WithID):
-    cdef cpp.shared_ptr[cpp.Node] _node
+    cdef shared_ptr[cpp.Node] _node
     def getId(self):
         h = InfoHash()
         h._infohash = self._node.get().getId()
@@ -136,7 +162,7 @@ cdef class Node(_WithID):
         return self._node.get().isExpired()
 
 cdef class NodeEntry(_WithID):
-    cdef cpp.pair[cpp.InfoHash, cpp.shared_ptr[cpp.Node]] _v
+    cdef cpp.pair[cpp.InfoHash, shared_ptr[cpp.Node]] _v
     def getId(self):
         h = InfoHash()
         h._infohash = self._v.first
@@ -146,8 +172,61 @@ cdef class NodeEntry(_WithID):
         n._node = self._v.second
         return n
 
+cdef class Query(object):
+    cdef cpp.Query _query
+    def __cinit__(self, str q_str=''):
+        self._query = cpp.Query(q_str.encode())
+    def __str__(self):
+        return self._query.toString().decode()
+    def buildFrom(self, Select s, Where w):
+        self._query = cpp.Query(s._select, w._where)
+    def isSatisfiedBy(self, Query q):
+        return self._query.isSatisfiedBy(q._query)
+
+cdef class Select(object):
+    cdef cpp.Select _select
+    def __cinit__(self, str q_str=None):
+        if q_str:
+            self._select = cpp.Select(q_str.encode())
+        else:
+            self._select = cpp.Select()
+    def __str__(self):
+        return self._select.toString().decode()
+    def isSatisfiedBy(self, Select os):
+        return self._select.isSatisfiedBy(os._select)
+    def field(self, int field):
+        self._select.field(<cpp.Field> field)
+        return self
+
+cdef class Where(object):
+    cdef cpp.Where _where
+    def __cinit__(self, str q_str=None):
+        if q_str:
+            self._where = cpp.Where(q_str.encode())
+        else:
+            self._where = cpp.Where()
+    def __str__(self):
+        return self._where.toString().decode()
+    def isSatisfiedBy(self, Where where):
+        return self._where.isSatisfiedBy(where._where)
+    def id(self, cpp.uint64_t id):
+        self._where.id(id)
+        return self
+    def valueType(self, cpp.uint16_t type):
+        self._where.valueType(type)
+        return self
+    def owner(self, InfoHash owner_pk_hash):
+        self._where.owner(owner_pk_hash._infohash)
+        return self
+    def seq(self, cpp.uint16_t seq_no):
+        self._where.seq(seq_no)
+        return self
+    def userType(self, str user_type):
+        self._where.userType(user_type.encode())
+        return self
+
 cdef class Value(object):
-    cdef cpp.shared_ptr[cpp.Value] _value
+    cdef shared_ptr[cpp.Value] _value
     def __init__(self, bytes val=b''):
         self._value.reset(new cpp.Value(val, len(val)))
     def __str__(self):
@@ -169,6 +248,11 @@ cdef class Value(object):
             return string(<char*>self._value.get().data.data(), self._value.get().data.size())
         def __set__(self, bytes value):
             self._value.get().data = value
+    property user_type:
+        def __get__(self):
+            return self._value.get().user_type.decode()
+        def __set__(self, str t):
+            self._value.get().user_type = t.encode()
     property id:
         def __get__(self):
             return self._value.get().id
@@ -179,8 +263,8 @@ cdef class Value(object):
             return self._value.get().size()
 
 cdef class NodeSetIter(object):
-    cdef map[cpp.InfoHash, cpp.shared_ptr[cpp.Node]]* _nodes
-    cdef map[cpp.InfoHash, cpp.shared_ptr[cpp.Node]].iterator _curIter
+    cdef map[cpp.InfoHash, shared_ptr[cpp.Node]]* _nodes
+    cdef map[cpp.InfoHash, shared_ptr[cpp.Node]].iterator _curIter
     def __init__(self, NodeSet s):
         self._nodes = &s._nodes
         self._curIter = self._nodes.begin()
@@ -193,11 +277,11 @@ cdef class NodeSetIter(object):
         return h
 
 cdef class NodeSet(object):
-    cdef map[cpp.InfoHash, cpp.shared_ptr[cpp.Node]] _nodes
+    cdef map[cpp.InfoHash, shared_ptr[cpp.Node]] _nodes
     def size(self):
         return self._nodes.size()
     def insert(self, NodeEntry l):
-        self._nodes.insert(l._v)
+        return self._nodes.insert(l._v).second
     def extend(self, li):
         for n in li:
             self.insert(n)
@@ -215,7 +299,7 @@ cdef class NodeSet(object):
         return h
     def __str__(self):
         s = ''
-        cdef map[cpp.InfoHash, cpp.shared_ptr[cpp.Node]].iterator it = self._nodes.begin()
+        cdef map[cpp.InfoHash, shared_ptr[cpp.Node]].iterator it = self._nodes.begin()
         while it != self._nodes.end():
             s += deref(it).first.toString().decode() + ' ' + deref(it).second.get().getAddrStr().decode() + '\n'
             inc(it)
@@ -223,19 +307,100 @@ cdef class NodeSet(object):
     def __iter__(self):
         return NodeSetIter(self)
 
+cdef class PrivateKey(_WithID):
+    cdef shared_ptr[cpp.PrivateKey] _key
+    def getId(self):
+        h = InfoHash()
+        h._infohash = self._key.get().getPublicKey().getId()
+        return h
+    def getPublicKey(self):
+        pk = PublicKey()
+        pk._key = self._key.get().getPublicKey()
+        return pk
+    def decrypt(self, bytes dat):
+        cdef size_t d_len = len(dat)
+        cdef cpp.uint8_t* d_ptr = <cpp.uint8_t*>dat
+        cdef cpp.Blob indat
+        indat.assign(d_ptr, <cpp.uint8_t*>(d_ptr + d_len))
+        cdef cpp.Blob decrypted = self._key.get().decrypt(indat)
+        cdef char* decrypted_c_str = <char *>decrypted.data()
+        cdef Py_ssize_t length = decrypted.size()
+        return decrypted_c_str[:length]
+    def __str__(self):
+        return self.getId().toString().decode()
+    @staticmethod
+    def generate():
+        k = PrivateKey()
+        k._key = cpp.make_shared[cpp.PrivateKey](cpp.PrivateKey.generate())
+        return k
+    @staticmethod
+    def generateEC():
+        k = PrivateKey()
+        k._key = cpp.make_shared[cpp.PrivateKey](cpp.PrivateKey.generateEC())
+        return k
+
 cdef class PublicKey(_WithID):
     cdef cpp.PublicKey _key
     def getId(self):
         h = InfoHash()
         h._infohash = self._key.getId()
         return h
+    def encrypt(self, bytes dat):
+        cdef size_t d_len = len(dat)
+        cdef cpp.uint8_t* d_ptr = <cpp.uint8_t*>dat
+        cdef cpp.Blob indat
+        indat.assign(d_ptr, <cpp.uint8_t*>(d_ptr + d_len))
+        cdef cpp.Blob encrypted = self._key.encrypt(indat)
+        cdef char* encrypted_c_str = <char *>encrypted.data()
+        cdef Py_ssize_t length = encrypted.size()
+        return encrypted_c_str[:length]
 
 cdef class Certificate(_WithID):
-    cdef cpp.shared_ptr[cpp.Certificate] _cert
+    cdef shared_ptr[cpp.Certificate] _cert
+    def __init__(self, bytes dat = None):
+        if dat:
+            self._cert = cpp.make_shared[cpp.Certificate](<cpp.string>dat)
     def getId(self):
         h = InfoHash()
-        h._infohash = self._cert.get().getId()
+        if self._cert:
+            h._infohash = self._cert.get().getId()
         return h
+    def toString(self):
+        return self._cert.get().toString().decode()
+    def getName(self):
+        return self._cert.get().getName()
+    def revoke(self, PrivateKey k, Certificate c):
+        self._cert.get().revoke(deref(k._key.get()), deref(c._cert.get()));
+    def __bytes__(self):
+        return self._cert.get().toString() if self._cert else b''
+    property issuer:
+        def __get__(self):
+            c = Certificate()
+            c._cert = self._cert.get().issuer
+            return c;
+    @staticmethod
+    def generate(PrivateKey k, str name, Identity i = Identity(), bool is_ca = False):
+        c = Certificate()
+        c._cert = cpp.make_shared[cpp.Certificate](cpp.Certificate.generate(deref(k._key.get()), name.encode(), i._id, is_ca))
+        return c
+
+cdef class VerifyResult(object):
+    cdef cpp.TrustListVerifyResult _result
+    def __bool__(self):
+        return self._result.isValid()
+    def __str(self):
+        return self._result.toString()
+
+cdef class TrustList(object):
+    cdef cpp.TrustList _trust
+    def add(self, Certificate cert):
+        self._trust.add(deref(cert._cert.get()))
+    def remove(self, Certificate cert):
+        self._trust.remove(deref(cert._cert.get()))
+    def verify(self, Certificate cert):
+        r = VerifyResult()
+        r._result = self._trust.verify(deref(cert._cert.get()))
+        return r
 
 cdef class ListenToken(object):
     cdef cpp.InfoHash _h
@@ -244,18 +409,31 @@ cdef class ListenToken(object):
 
 cdef class Identity(object):
     cdef cpp.Identity _id
-    def generate(self, str name = "pydht", Identity ca = Identity(), unsigned bits = 4096):
-        self._id = cpp.generateIdentity(name.encode(), ca._id, bits)
-    property PublicKey:
+    def __init__(self, PrivateKey k = None, Certificate c = None):
+        if k:
+            self._id.first = k._key
+        if c:
+            self._id.second = c._cert
+    @staticmethod
+    def generate(str name = "pydht", Identity ca = Identity(), unsigned bits = 4096):
+        i = Identity()
+        i._id = cpp.generateIdentity(name.encode(), ca._id, bits)
+        return i
+    property publickey:
         def __get__(self):
             k = PublicKey()
             k._key = self._id.first.get().getPublicKey()
             return k
-    property Certificate:
+    property certificate:
         def __get__(self):
             c = Certificate()
             c._cert = self._id.second
             return c
+    property key:
+        def __get__(self):
+            k = PrivateKey()
+            k._key = self._id.first
+            return k
 
 cdef class DhtConfig(object):
     cdef cpp.DhtRunnerConfig _config
@@ -268,6 +446,10 @@ cdef class DhtConfig(object):
         self._config.dht_config.node_config.is_bootstrap = bootstrap
     def setNodeId(self, InfoHash id):
         self._config.dht_config.node_config.node_id = id._infohash
+    def setNetwork(self, unsigned netid):
+        self._config.dht_config.node_config.network = netid
+    def setMaintainStorage(self, bool maintain_storage):
+        self._config.dht_config.node_config.maintain_storage = maintain_storage
 
 cdef class DhtRunner(_WithID):
     cdef cpp.shared_ptr[cpp.DhtRunner] thisptr
@@ -275,12 +457,36 @@ cdef class DhtRunner(_WithID):
         self.thisptr.reset(new cpp.DhtRunner())
     def getId(self):
         h = InfoHash()
-        h._infohash = self.thisptr.get().getId()
+        if self.thisptr:
+            h._infohash = self.thisptr.get().getId()
         return h
     def getNodeId(self):
         return self.thisptr.get().getNodeId().toString()
-    def bootstrap(self, str host, str port):
-        self.thisptr.get().bootstrap(host.encode(), port.encode())
+    def ping(self, SockAddr addr, done_cb=None):
+        if done_cb:
+            cb_obj = {'done':done_cb}
+            ref.Py_INCREF(cb_obj)
+            self.thisptr.get().bootstrap(addr._addr, cpp.bindDoneCbSimple(done_callback_simple, <void*>cb_obj))
+        else:
+            lock = threading.Condition()
+            pending = 0
+            ok = False
+            def tmp_done(ok_ret):
+                nonlocal pending, ok, lock
+                with lock:
+                    ok = ok_ret
+                    pending -= 1
+                    lock.notify()
+            with lock:
+                pending += 1
+                self.ping(addr, done_cb=tmp_done)
+                while pending > 0:
+                    lock.wait()
+            return ok
+    def bootstrap(self, str host, str port=None):
+        host_bytes = host.encode()
+        port_bytes = port.encode() if port else b'4222'
+        self.thisptr.get().bootstrap(<cpp.const_char*>host_bytes, <cpp.const_char*>port_bytes)
     def run(self, Identity id=None, is_bootstrap=False, cpp.in_port_t port=0, str ipv4="", str ipv6="", DhtConfig config=DhtConfig()):
         if id:
             config.setIdentity(id)
@@ -301,9 +507,13 @@ cdef class DhtRunner(_WithID):
     def disableLogging(self):
         cpp.disableLogging(self.thisptr.get()[0])
     def enableFileLogging(self, str path):
-        cpp.enableFileLogging(self.thisptr.get()[0], path)
+        cpp.enableFileLogging(self.thisptr.get()[0], path.encode())
     def isRunning(self):
         return self.thisptr.get().isRunning()
+    def getBound(self, cpp.sa_family_t af = 0):
+        s = SockAddr()
+        s._addr = self.thisptr.get().getBound(af)
+        return s
     def getStorageLog(self):
         return self.thisptr.get().getStorageLog().decode()
     def getRoutingTablesLog(self, cpp.sa_family_t af):
@@ -317,7 +527,7 @@ cdef class DhtRunner(_WithID):
             stats.append(n)
         return stats
 
-    def get(self, InfoHash key, get_cb=None, done_cb=None):
+    def get(self, InfoHash key, get_cb=None, done_cb=None, filter=None, Where where=None):
         """Retreive values associated with a key on the DHT.
 
         key     -- the key for which to search
@@ -327,9 +537,14 @@ cdef class DhtRunner(_WithID):
                    operation is completed.
         """
         if get_cb:
-            cb_obj = {'get':get_cb, 'done':done_cb}
+            cb_obj = {'get':get_cb, 'done':done_cb, 'filter':filter}
             ref.Py_INCREF(cb_obj)
-            self.thisptr.get().get(key._infohash, cpp.bindGetCb(get_callback, <void*>cb_obj), cpp.bindDoneCb(done_callback, <void*>cb_obj))
+            if where is None:
+                where = Where()
+            self.thisptr.get().get(key._infohash, cpp.bindGetCb(get_callback, <void*>cb_obj),
+                    cpp.bindDoneCb(done_callback, <void*>cb_obj),
+                    cpp.nullptr, #filter implemented in the get_callback
+                    where._where)
         else:
             lock = threading.Condition()
             pending = 0
@@ -345,7 +560,7 @@ cdef class DhtRunner(_WithID):
                     lock.notify()
             with lock:
                 pending += 1
-                self.get(key, get_cb=tmp_get, done_cb=tmp_done)
+                self.get(key, get_cb=tmp_get, done_cb=tmp_done, filter=filter, where=where)
                 while pending > 0:
                     lock.wait()
             return res
@@ -453,4 +668,3 @@ cdef class Pht(object):
                 val,
                 cpp.bindDoneCbSimple(done_callback_simple, <void*>cb_obj)
         )
-

python/opendht_cpp.pxd

@@ -1,4 +1,4 @@
-# Copyright (c) 2015-2016 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
 #
@@ -13,14 +13,15 @@
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; If not, see <http://www.gnu.org/licenses/>.
+# along with this program; If not, see <https://www.gnu.org/licenses/>.
 
 from libc.stdint cimport *
-from libcpp cimport bool
+from libcpp cimport bool, nullptr_t, nullptr
 from libcpp.string cimport string
 from libcpp.vector cimport vector
 from libcpp.utility cimport pair
 from libcpp.map cimport map
+from libc.string cimport const_char, const_uchar
 
 ctypedef uint16_t in_port_t
 ctypedef unsigned short int sa_family_t;
@@ -31,7 +32,9 @@ cdef extern from "<memory>" namespace "std" nogil:
         shared_ptr(T*) except +
         T* get()
         T operator*()
+        bool operator bool() const
         void reset(T*)
+    shared_ptr[T] make_shared[T](...) except +
 
 cdef extern from "<functional>" namespace "std" nogil:
     cdef cppclass hash[T]:
@@ -62,8 +65,23 @@ cdef extern from "opendht/infohash.h" namespace "dht":
         InfoHash get(string s)
         @staticmethod
         InfoHash getRandom()
-        bool operator==(InfoHash)
-        bool operator<(InfoHash)
+        bool operator==(InfoHash) const
+        bool operator<(InfoHash) const
+        bool operator bool() const
+
+cdef extern from "opendht/sockaddr.h" namespace "dht":
+    cdef cppclass SockAddr:
+        SockAddr() except +
+        string toString() const
+        in_port_t getPort() const
+        void setPort(in_port_t p)
+        sa_family_t getFamily() const
+        void setFamily(sa_family_t f)
+        bool isLoopback() const
+        bool isPrivate() const
+        bool isUnspecified() const
+
+ctypedef vector[uint8_t] Blob
 
 cdef extern from "opendht/crypto.h" namespace "dht::crypto":
     ctypedef pair[shared_ptr[PrivateKey], shared_ptr[Certificate]] Identity
@@ -72,14 +90,52 @@ cdef extern from "opendht/crypto.h" namespace "dht::crypto":
     cdef cppclass PrivateKey:
         PrivateKey()
         PublicKey getPublicKey() const
+        Blob decrypt(Blob data) const
+        @staticmethod
+        PrivateKey generate()
+        @staticmethod
+        PrivateKey generateEC()
 
     cdef cppclass PublicKey:
         PublicKey()
         InfoHash getId() const
+        Blob encrypt(Blob data) const
 
     cdef cppclass Certificate:
         Certificate()
+        Certificate(string pem)
         InfoHash getId() const
+        string toString() const
+        string getName() const
+        void revoke(PrivateKey key, Certificate cert)
+        @staticmethod
+        Certificate generate(PrivateKey key, string name, Identity ca, bool is_ca)
+        shared_ptr[Certificate] issuer
+
+    cdef cppclass TrustList:
+        cppclass VerifyResult:
+            bool operator bool() const
+            bool isValid() const
+            string toString() const
+        TrustList()
+        void add(Certificate)
+        void remove(Certificate)
+        VerifyResult verify(Certificate);
+
+ctypedef TrustList.VerifyResult TrustListVerifyResult
+
+cdef extern from "opendht/value.h" namespace "dht::Value":
+    cdef cppclass Field:
+        pass
+
+cdef extern from "opendht/value.h" namespace "dht::Value::Field":
+    cdef Field None
+    cdef Field Id
+    cdef Field ValueType
+    cdef Field OwnerPk
+    cdef Field SeqNum
+    cdef Field UserType
+    cdef Field COUNT
 
 cdef extern from "opendht/value.h" namespace "dht":
     cdef cppclass Value:
@@ -94,6 +150,31 @@ cdef extern from "opendht/value.h" namespace "dht":
         vector[uint8_t] data
         string user_type
 
+    cdef cppclass Query:
+        Query() except +
+        Query(Select s, Where w) except +
+        Query(string q_str) except +
+        bool isSatisfiedBy(const Query& q) const
+        string toString() const
+
+    cdef cppclass Select:
+        Select() except +
+        Select(const string& q_str) except +
+        bool isSatisfiedBy(const Select& os) const
+        Select& field(Field field)
+        string toString() const
+
+    cdef cppclass Where:
+        Where() except +
+        Where(const string& q_str)
+        bool isSatisfiedBy(const Where& where) const
+        Where& id(uint64_t id)
+        Where& valueType(uint16_t type)
+        Where& owner(InfoHash owner_pk_hash)
+        Where& seq(uint16_t seq_no)
+        Where& userType(string user_type)
+        string toString() const
+
 cdef extern from "opendht/node.h" namespace "dht":
     cdef cppclass Node:
         Node() except +
@@ -123,7 +204,9 @@ cdef extern from "opendht/callbacks.h" namespace "dht":
 
     cppclass Config:
         InfoHash node_id
+        uint32_t network
         bool is_bootstrap
+        bool maintain_storage
     cppclass SecureDhtConfig:
         Config node_config
         Identity id
@@ -138,16 +221,18 @@ cdef extern from "opendht/dhtrunner.h" namespace "dht":
             bool threaded
         InfoHash getId() const
         InfoHash getNodeId() const
-        void bootstrap(const char*, const char*)
+        void bootstrap(const_char*, const_char*)
+        void bootstrap(const SockAddr&, DoneCallbackSimple done_cb)
         void run(in_port_t, Config config)
-        void run(const char*, const char*, const char*, Config config)
+        void run(const_char*, const_char*, const_char*, Config config)
         void join()
         void shutdown(ShutdownCallback)
         bool isRunning()
+        SockAddr getBound(sa_family_t af) const
         string getStorageLog() const
         string getRoutingTablesLog(sa_family_t af) const
         string getSearchesLog(sa_family_t af) const
-        void get(InfoHash key, GetCallback get_cb, DoneCallback done_cb)
+        void get(InfoHash key, GetCallback get_cb, DoneCallback done_cb, nullptr_t f, Where w)
         void put(InfoHash key, shared_ptr[Value] val, DoneCallback done_cb)
         ListenToken listen(InfoHash key, GetCallback get_cb)
         void cancelListen(InfoHash key, SharedListenToken token)
@@ -178,4 +263,3 @@ cdef extern from "opendht/indexation/pht.h" namespace "dht::indexation":
         void insert(IndexKey k, IndexValue v, DoneCallbackSimple cb)
         @staticmethod
         LookupCallback bindLookupCb(LookupCallbackRaw cb, void *user_data)
-

python/setup.py.in

@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2016 Savoir-faire Linux Inc.
+# Copyright (C) 2015-2019 Savoir-faire Linux Inc.
 # Author: Guillaume Roguez <guillaume.roguez@savoirfairelinux.com>
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
@@ -18,7 +18,7 @@
 #    GNU General Public License for more details.
 #
 #    You should have received a copy of the GNU General Public License
-#    along with OpenDHT Python Wrapper. If not, see <http://www.gnu.org/licenses/>.
+#    along with OpenDHT Python Wrapper. If not, see <https://www.gnu.org/licenses/>.
 #
 
 from setuptools import setup, Extension
@@ -27,7 +27,7 @@ from Cython.Distutils import build_ext
 
 setup(name="opendht",
       version="@PACKAGE_VERSION@",
-      description="Python wrapper for opendht",
+      description="Python wrapper for OpenDHT",
       url='https://github.com/savoirfairelinux/opendht',
       author="Adrien Béraud, Guillaume Roguez, Simon Désaulniers",
       license="GPLv3",

python/tests/opendht_tests.py

@@ -0,0 +1,53 @@
+import unittest
+import opendht as dht
+
+class OpenDhtTester(unittest.TestCase):
+
+    # test that DhtRunner can be instatiated and deleted without throwing
+    def test_instance(self):
+        for i in range(10):
+            r = dht.DhtRunner()
+            r.run()
+            del r
+
+    # test that bootstraping works (raw address)
+    def test_bootstrap(self):
+        a = dht.DhtRunner()
+        a.run()
+        b = dht.DhtRunner()
+        b.run()
+        self.assertTrue(b.ping(a.getBound()))
+
+    def test_crypto(self):
+        i = dht.Identity.generate("id")
+        message = dht.InfoHash.getRandom().toString()
+        encrypted = i.publickey.encrypt(message)
+        decrypted = i.key.decrypt(encrypted)
+        self.assertTrue(message == decrypted)
+
+    def test_crypto_ec(self):
+        key = dht.PrivateKey.generateEC()
+        cert = dht.Certificate.generate(key, "CA", is_ca=True)
+        ca_id = dht.Identity(key, cert)
+        self.assertTrue(cert.getId() == key.getPublicKey().getId())
+        key2 = dht.PrivateKey.generateEC()
+        cert2 = dht.Certificate.generate(key2, "cert", ca_id)
+        trust = dht.TrustList()
+        trust.add(cert)
+        self.assertTrue(trust.verify(cert2))
+
+    def test_trust(self):
+        main_id = dht.Identity.generate("id_1")
+        sub_id1 = dht.Identity.generate("sid_1", main_id)
+        sub_id2 = dht.Identity.generate("sid_2", main_id)
+        main_id.certificate.revoke(main_id.key, sub_id2.certificate)
+        main_id2 = dht.Identity.generate("id_2")
+        trust = dht.TrustList()
+        trust.add(main_id.certificate)
+        self.assertTrue(trust.verify(main_id.certificate))
+        self.assertTrue(trust.verify(sub_id1.certificate))
+        self.assertFalse(trust.verify(sub_id2.certificate))
+        self.assertFalse(trust.verify(main_id2.certificate))
+
+if __name__ == '__main__':
+    unittest.main()

python/tools/README.md

@@ -0,0 +1,45 @@
+# Benchmark
+
+The `benchmark.py` script is used for testing OpenDHT in various cases. If you
+run `benchmark.py --help`, you should find the following text:
+
+    optional arguments:
+      -h, --help            show this help message and exit
+      --performance         Launches performance benchmark test. Available args
+                            for "-t" are: gets.
+      --data-persistence    Launches data persistence benchmark test. Available
+                            args for "-t" are: delete, replace, mult_time.
+                            Available args for "-o" are : dump_str_log,
+                            keep_alive, trigger, traffic_plot, op_plot. Use "-m"
+                            to specify the number of producers on the DHT.Use "-e"
+                            to specify the number of values to put on the DHT.
+
+These options specify the feature to be tested. Each feature has its own tests.
+You specify the test by using `-t` flag (see `benchmark.py --help` for full
+help).
+
+## Python dependencies
+
+- pyroute2 >=0.3.14
+- matplotlib
+- GeoIP (used by `scanner.py` for drawing map of the world)
+- ipaddress
+- netifaces
+- networkx
+- numpy
+
+## Usage
+
+Before running the script, you have to build and install OpenDHT and its cython
+wrapper (`cython3` has to be installed) on the system so that it can be found by
+the benchmark script.
+
+    $ cd $OPENDHT_SRC_DIR
+    $ ./autogen.sh
+    $ ./configure
+    $ make && sudo make install
+
+Then, you can use the script like so:
+
+    $ cd $OPENDHT_SRC_DIR/python/tools/
+    $ python3 benchmark.py --performance -t gets -n 2048

python/tools/benchmark.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-# Copyright (C) 2015-2016 Savoir-faire Linux Inc.
+# Copyright (C) 2015-2019 Savoir-faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
 #
@@ -66,7 +66,11 @@ class WorkBench():
 
     def create_virtual_net(self):
         if self.virtual_locs > 1:
-            cmd = ["python3", os.path.abspath(virtual_network_builder.__file__), "-i", self.ifname, "-n", str(self.clusters), '-l', str(self.loss), '-d', str(self.delay)]
+            cmd = ["python3", os.path.abspath(virtual_network_builder.__file__),
+                    "-i", self.ifname,
+                    "-n", str(self.clusters),
+                    '-l', str(self.loss),
+                    '-d', str(self.delay)]
             if not self.disable_ipv4:
                 cmd.append('-4')
             if not self.disable_ipv6:
@@ -90,10 +94,17 @@ class WorkBench():
                     cmd.extend(['-b', self.local_bootstrap.ip4])
                 if not self.disable_ipv6 and self.local_bootstrap.ip6:
                     cmd.extend(['-b6', self.local_bootstrap.ip6])
-            self.procs[i] = DhtNetworkSubProcess('node'+str(i), cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
-            while DhtNetworkSubProcess.NOTIFY_TOKEN not in self.procs[i].getline():
-                # waiting for process to spawn
-                time.sleep(0.5)
+            lock = threading.Condition()
+            def dcb(success):
+                nonlocal lock
+                if not success:
+                    DhtNetwork.Log.err("Failed to initialize network...")
+                with lock:
+                    lock.notify()
+            with lock:
+                self.procs[i] = DhtNetworkSubProcess('node'+str(i), cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
+                self.procs[i].sendPing(done_cb=dcb)
+                lock.wait()
         else:
             raise Exception('First create bootstrap.')
 
@@ -166,7 +177,7 @@ if __name__ == '__main__':
             help='Launches data persistence benchmark test. '\
                  'Available args for "-t" are: delete, replace, mult_time. '\
                  'Available args for "-o" are : dump_str_log, keep_alive, trigger, traffic_plot, op_plot. '\
-                 'Use "-m" to specify the number of producers on the DHT.'\
+                 'Use "-m" to specify the number of producers on the DHT. '\
                  'Use "-e" to specify the number of values to put on the DHT.')
 
     args = parser.parse_args()
@@ -175,6 +186,7 @@ if __name__ == '__main__':
     wb = WorkBench(args.ifname, args.virtual_locs, args.node_num, loss=args.loss,
             delay=args.delay, disable_ipv4=args.disable_ipv4,
             disable_ipv6=args.disable_ipv6)
+    wb.create_virtual_net()
     bootstrap = wb.get_bootstrap()
 
     bs_dht_log_enabled = False
@@ -192,7 +204,6 @@ if __name__ == '__main__':
         bs_dht_log_enabled = True
         bootstrap.front().enableLogging()
 
-    wb.create_virtual_net()
     bootstrap.resize(1)
     print("Launching", wb.node_num, "nodes (", wb.clusters, "clusters of", wb.node_per_loc, "nodes)")
 

python/tools/dht/network.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-# Copyright (c) 2015-2016 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
 #
@@ -25,11 +25,13 @@ import time
 import threading
 import queue
 import re
+import traceback
 
 import ipaddress
 import netifaces
 import numpy as np
 from pyroute2.netns.process.proxy import NSPopen
+import msgpack
 
 from opendht import *
 
@@ -37,8 +39,6 @@ from opendht import *
 # useful functions
 b_space_join = lambda *l: b' '.join(map(bytes, l))
 
-# TODO: find where token "notifyend" gets printed... Or switch to MSGPACK for
-# serialisation of packets between both processes.
 class DhtNetworkSubProcess(NSPopen):
     """
     Handles communication with DhtNetwork sub process.
@@ -47,20 +47,21 @@ class DhtNetworkSubProcess(NSPopen):
     process' stdout until it finds 'DhtNetworkSubProcess.NOTIFY_TOKEN' token,
     therefor, waits for the sub process to spawn.
     """
+    # Packet types
+    REQUEST = 'DhtNetworkSubProcess.request'
+    ANSWER = 'DhtNetworkSubProcess.answer'
+    OUT = 'DhtNetworkSubProcess.out'
+
     # requests
-    NODE_PUT_REQ              = b"np"
-    NEW_NODE_REQ              = b"nn"
-    REMOVE_NODE_REQ           = b"rn"
-    SHUTDOWN_NODE_REQ         = b"sdn"
-    SHUTDOWN_REPLACE_NODE_REQ = b'sdrn'
-    SHUTDOWN_CLUSTER_REQ      = b"sdc"
-    DUMP_STORAGE_REQ          = b"strl"
-    MESSAGE_STATS             = b"gms"
-
-
-    # tokens
-    NOTIFY_TOKEN     = 'notify'
-    NOTIFY_END_TOKEN = 'notifyend'
+    PING_REQ                  = "p"
+    NODE_PUT_REQ              = "np"   # "np <hash> <value>"
+    NEW_NODE_REQ              = "nn"   # "nn"
+    REMOVE_NODE_REQ           = "rn"   # "rn <id0>[ <id1>[ id2[...]]]"
+    SHUTDOWN_NODE_REQ         = "sdn"  # "sdn <id0>[ <id1>[ id2[...]]]"
+    SHUTDOWN_REPLACE_NODE_REQ = "sdrn" # "sdn <id0>[ <id1>[ id2[...]]]"
+    SHUTDOWN_CLUSTER_REQ      = "sdc"  # "sdc"
+    DUMP_STORAGE_REQ          = "strl" # "strl"
+    MESSAGE_STATS             = "gms"  # "gms"
 
     def __init__(self, ns, cmd, quit=False, **kwargs):
         super(DhtNetworkSubProcess, self).__init__(ns, cmd, **kwargs)
@@ -70,11 +71,11 @@ class DhtNetworkSubProcess(NSPopen):
         self._quit = quit
         self._lock = threading.Condition()
         self._in_queue = queue.Queue()
-        self._out_queue = queue.Queue()
+        self._callbacks = {}
+        self._tid = 0
 
         # starting thread
         self._thread = threading.Thread(target=self._communicate)
-        self._thread.daemon = True
         self._thread.start()
 
     def __repr__(self):
@@ -92,42 +93,38 @@ class DhtNetworkSubProcess(NSPopen):
         """
         Communication thread. This reads and writes to the sub process.
         """
-        ENCODING = 'utf-8'
         sleep_time = 0.1
-        stdin_line, stdout_line = '', ''
-
-        # first read of process living. Expecting NOTIFY_TOKEN
-        while DhtNetworkSubProcess.NOTIFY_TOKEN not in stdout_line:
-            stdout_line = self.stdout.readline().decode()
-            time.sleep(sleep_time)
-
-        with self._lock:
-            self._out_queue.put(stdout_line)
 
         while not self._quit:
             with self._lock:
                 try:
-                    stdin_line = self._in_queue.get_nowait()
+                    packet = self._in_queue.get_nowait()
 
                     # sending data to sub process
-                    self.stdin.write(stdin_line if isinstance(stdin_line, bytes) else
-                            bytes(str(stdin_line), encoding=ENCODING))
+                    self.stdin.write(packet)
                     self.stdin.flush()
                 except queue.Empty:
-                    #waiting for next stdin req to send
-                    self._lock.wait(timeout=sleep_time)
+                    pass
 
-            # reading response from sub process
-            for stdout_line in iter(self.stdout.readline, b''):
-                stdout_line = stdout_line.decode().replace('\n', '')
-                if stdout_line:
-                    with self._lock:
-                        self._out_queue.put(stdout_line)
+                # reading from sub process
+                out_string = ''
+                for p in msgpack.Unpacker(self.stdout):
+                    if isinstance(p, dict):
+                        self._process_packet(p)
+                    else:
+                        # Some non-msgpack data could slip into the stream. We
+                        # have to treat those as characters.
+                        out_string += chr(p)
+                if out_string:
+                    print(out_string)
+
+                #waiting for next stdin req to send
+                self._lock.wait(timeout=sleep_time)
 
         with self._lock:
             self._lock.notify()
 
-    def stop_communicating(self):
+    def _stop_communicating(self):
         """
         Stops the I/O thread from communicating with the subprocess.
         """
@@ -142,12 +139,12 @@ class DhtNetworkSubProcess(NSPopen):
         Notifies thread and sub process to terminate. This is blocking call
         until the sub process finishes.
         """
-        self.stop_communicating()
+        self._stop_communicating()
         self.send_signal(signal.SIGINT);
         self.wait()
         self.release()
 
-    def send(self, msg):
+    def _send(self, msg):
         """
         Send data to sub process.
         """
@@ -155,83 +152,76 @@ class DhtNetworkSubProcess(NSPopen):
             self._in_queue.put(msg)
             self._lock.notify()
 
-    def getline(self):
+    def _process_packet(self, p):
         """
-        Read line from sub process.
-
-        @return:  A line on sub process' stdout.
-        @rtype :  str
+        Process msgpack packet received from
         """
-        line = ''
-        with self._lock:
-            try:
-                line = self._out_queue.get_nowait()
-            except queue.Empty:
-                pass
-        return line
+        if not b'tid' in p:
+            DhtNetwork.Log.err('Bad packet...')
+        try:
+            self._callbacks[p[b'tid']](p)
+        except KeyError:
+            DhtNetwork.Log.err('Unknown tid...')
 
-    def getlinesUntilNotify(self, answer_cb=None):
-        """
-        Reads the stdout queue until a proper notification is given by the sub
-        process.
 
-        @param answer_cb: Callback to call when an answer is given after notify.
-                          The function takes a list of strings as argument.
-        @type  answer_cb:  function
-        """
-        notified = False
-        answer = []
-        while True:
-            out = self.getline()
-            if out.split(' ')[0] == DhtNetworkSubProcess.NOTIFY_TOKEN:
-                notified = True
-            elif notified and out.split(' ')[0] == DhtNetworkSubProcess.NOTIFY_END_TOKEN:
-                if answer_cb:
-                    answer_cb(answer)
-                break
-            elif notified:
-                answer.append(out)
-            elif out:
-                yield out
-            else:
-                time.sleep(0.1)
-
-    def _sendRequest(self, request, answer_cb=None):
+    def _sendRequest(self, request, tid, done_cb):
         """
         Sends a request to the sub network and wait for output.
 
         @param request: The serialized request.
-        @type  request: bytes
+        @type  request: Msgpack object
         """
-        self.send(request + b'\n')
-        for line in self.getlinesUntilNotify(answer_cb=answer_cb):
-            DhtNetwork.log(line)
+        self._callbacks[tid] = done_cb
+        self._send(request)
 
-    def sendGetMessageStats(self):
+    def sendPing(self, done_cb=None):
+        """Sends a ping request to the DhtNetworkSubProcess.
+
+        @param done_cb: The callback to be executed when we get a response. This
+                        function takes a boolean "success" as parameter.
+        @type  done_cb: Function
+        """
+        self._tid += 1
+        def dcb(packet):
+            try:
+                done_cb(packet[b'success'])
+            except KeyError:
+                done_cb(False)
+        self._sendRequest(msgpack.packb({
+            DhtNetworkSubProcess.REQUEST : True,
+            'tid' : self._tid,
+            'req' : DhtNetworkSubProcess.PING_REQ
+        }), self._tid, dcb)
+
+    def sendGetMessageStats(self, done_cb=None):
         """
         Sends DhtNetwork sub process statistics request about nodes messages
         sent.
 
+        @param done_cb: A function taking as parameter the returned list of
+                        stats.
+        @type  done_cb: function
+
         @return: A list [num_nodes, ping, find, get, put, listen].
         @rtype : list
         """
-        stats = []
-        def cb(answer):
-            """
-            Callback fed to getlinesUntilNotify made to recover answer from the
-            DhtNetwork sub process.
+        self._tid += 1
+        def dcb(packet):
+            nonlocal done_cb
+            if not done_cb:
+                return
+            try:
+                stats = packet[b'stats']
+                done_cb([] if not isinstance(stats, list) else done_cb(stats))
+            except KeyError:
+                done_cb([])
+        self._sendRequest(msgpack.packb({
+            DhtNetworkSubProcess.REQUEST : True,
+            'tid' : self._tid,
+            'req' : DhtNetworkSubProcess.MESSAGE_STATS
+        }), self._tid, dcb)
 
-            @param answer: the list of lines answered by the sub process.
-            @type  answer: function
-            """
-            nonlocal stats
-            if answer:
-                stats = [int(v) for v in re.findall("[0-9]+", answer.pop())]
-
-        self._sendRequest(DhtNetworkSubProcess.MESSAGE_STATS, answer_cb=cb)
-        return stats
-
-    def sendNodePutRequest(self, _hash, value):
+    def sendClusterPutRequest(self, _hash, value, done_cb=None):
         """
         Sends a put operation request.
 
@@ -239,40 +229,89 @@ class DhtNetworkSubProcess(NSPopen):
         @type  _hash: bytes.
         @param value: the value.
         @type  value: bytes.
+        @param done_cb: A function taking as parameter a boolean "success".
+        @type  done_cb: function
         """
-        self._sendRequest(b_space_join(DhtNetworkSubProcess.NODE_PUT_REQ, _hash,
-            value))
+        self._tid += 1
+        def dcb(packet):
+            nonlocal done_cb
+            if not done_cb:
+                return
+            try:
+                done_cb(packet[b'success'])
+            except KeyError:
+                done_cb(False)
+        self._sendRequest(msgpack.packb({
+            DhtNetworkSubProcess.REQUEST : True,
+            'tid' : self._tid,
+            'req'   : DhtNetworkSubProcess.NODE_PUT_REQ,
+            'hash'  : _hash,
+            'value' : value
+        }), self._tid, dcb)
 
-    def sendNodesRequest(self, request, ids=b''):
+    def sendClusterRequest(self, request, ids=[], done_cb=None):
         """
         Send request to a list of nodes or the whole cluster.
 
         @param request: The request. Possible values are:
-            DhtNetworkSubProcess.NODE_PUT_REQ
             DhtNetworkSubProcess.REMOVE_NODE_REQ
             DhtNetworkSubProcess.SHUTDOWN_NODE_REQ
             DhtNetworkSubProcess.SHUTDOWN_REPLACE_NODE_REQ
             DhtNetworkSubProcess.SHUTDOWN_CLUSTER_REQ
             DhtNetworkSubProcess.DUMP_STORAGE_REQ
-            DhtNetworkSubProcess.MESSAGE_STATS
         @type request: bytes
         @param ids: The list of ids concerned by the request.
         @type  ids: list
         """
-        self._sendRequest(b_space_join(request, b_space_join(*ids)))
+        self._tid += 1
+        def dcb(packet):
+            nonlocal done_cb
+            if not done_cb:
+                return
+            try:
+                done_cb(packet[b'success'])
+            except KeyError:
+                done_cb(False)
+        self._sendRequest(msgpack.packb({
+            DhtNetworkSubProcess.REQUEST : True,
+            'tid' : self._tid,
+            'req' : request,
+            'ids' : ids
+        }), self._tid, dcb)
+
 
 class DhtNetwork(object):
     nodes = []
 
-    @staticmethod
-    def log(*to_print):
+    class Log(object):
         BOLD   = "\033[1m"
         NORMAL = "\033[0m"
-        print('%s[DhtNetwork-%s]%s' % (BOLD, DhtNetwork.iface, NORMAL), ':' , *to_print, file=sys.stderr)
+        WHITE  = "\033[97m"
+        RED    = "\033[31m"
+        YELLOW = "\033[33m"
+
+        @staticmethod
+        def _log_with_color(*to_print, color=None):
+            color = color if color else DhtNetwork.Log.WHITE
+            print('%s%s[DhtNetwork-%s]%s%s' %
+                    (DhtNetwork.Log.BOLD, color, DhtNetwork.iface, DhtNetwork.Log.NORMAL, color),
+                    *to_print, DhtNetwork.Log.NORMAL, file=sys.stderr)
+
+        @staticmethod
+        def log(*to_print):
+            DhtNetwork.Log._log_with_color(*to_print, color=DhtNetwork.Log.WHITE)
+
+        @staticmethod
+        def warn(*to_print):
+            DhtNetwork.Log._log_with_color(*to_print, color=DhtNetwork.Log.YELLOW)
+
+        @staticmethod
+        def err(*to_print):
+            DhtNetwork.Log._log_with_color(*to_print, color=DhtNetwork.Log.RED)
 
     @staticmethod
     def run_node(ip4, ip6, p, bootstrap=[], is_bootstrap=False):
-        DhtNetwork.log("run_node", ip4, ip6, p, bootstrap)
+        DhtNetwork.Log.log("run_node", ip4, ip6, p, bootstrap)
         n = DhtRunner()
         n.run(ipv4=ip4 if ip4 else "", ipv6=ip6 if ip6 else "", port=p, is_bootstrap=is_bootstrap)
         for b in bootstrap:
@@ -297,7 +336,7 @@ class DhtNetwork(object):
         self.ip6 = ip6 if ip6 else ips[1]
         self.bootstrap = bootstrap
         if first_bootstrap:
-            DhtNetwork.log("Starting bootstrap node")
+            DhtNetwork.Log.log("Starting bootstrap node")
             self.nodes.append(DhtNetwork.run_node(self.ip4, self.ip6, self.port, self.bootstrap, is_bootstrap=True))
             self.bootstrap = [(self.ip4, str(self.port))]
             self.port += 1
@@ -309,6 +348,9 @@ class DhtNetwork(object):
         return self.nodes[0][1]
 
     def get(self, i=None):
+        if not self.nodes:
+            return None
+
         if i is None:
             l = list(self.nodes)
             random.shuffle(l)
@@ -321,14 +363,13 @@ class DhtNetwork(object):
             for n in self.nodes:
                 if n[1].getNodeId() == id:
                     return n
-        else:
-            return None
+        return None
 
     def launch_node(self):
         n = DhtNetwork.run_node(self.ip4, self.ip6, self.port, self.bootstrap)
         self.nodes.append(n)
         if not self.bootstrap:
-            DhtNetwork.log("Using fallback bootstrap", self.ip4, self.port)
+            DhtNetwork.Log.log("Using fallback bootstrap", self.ip4, self.port)
             self.bootstrap = [(self.ip4, str(self.port))]
         self.port += 1
         return n
@@ -346,25 +387,25 @@ class DhtNetwork(object):
         lock = threading.Condition()
         def shutdown_cb():
             nonlocal lock
-            DhtNetwork.log('Done.')
+            DhtNetwork.Log.log('Done.')
             with lock:
                 lock.notify()
 
         if not self.nodes:
             return
-        elif id is not None:
+        elif id:
             n = self.getNodeInfoById(id)
             if n:
                 if shutdown:
                     with lock:
-                        DhtNetwork.log('Waiting for node to shutdown... ')
+                        DhtNetwork.Log.log('Waiting for node to shutdown... ')
                         n[1].shutdown(shutdown_cb)
                         lock.wait()
                     if last_msg_stats:
                         last_msg_stats.append(self.getMessageStats())
                 n[1].join()
                 self.nodes.remove(n)
-                DhtNetwork.log(id, 'deleted !')
+                DhtNetwork.Log.log(id, 'deleted !')
                 return True
             else:
                 return False
@@ -385,11 +426,11 @@ class DhtNetwork(object):
         if n == l:
             return
         if n > l:
-            DhtNetwork.log("Launching", n-l, "nodes", self.ip4, self.ip6)
+            DhtNetwork.Log.log("Launching", n-l, "nodes", self.ip4, self.ip6)
             for i in range(l, n):
                 self.launch_node()
         else:
-            DhtNetwork.log("Ending", l-n, "nodes", self.ip4, self.ip6)
+            DhtNetwork.Log.log("Ending", l-n, "nodes", self.ip4, self.ip6)
             #random.shuffle(self.nodes)
             for i in range(n, l):
                 self.end_node()
@@ -409,30 +450,39 @@ if __name__ == '__main__':
     lock = threading.Condition()
     quit = False
 
-    def notify_benchmark(answer=[]):
-        sys.stdout.write('%s\n' % DhtNetworkSubProcess.NOTIFY_TOKEN)
-        for line in answer:
-            sys.stdout.write(str(line)+'\n')
-        sys.stdout.write('%s\n' % DhtNetworkSubProcess.NOTIFY_END_TOKEN)
-        sys.stdout.flush()
+    def send_msgpack_packet(packet):
+        sys.stdout.buffer.write(packet)
+        sys.stdout.buffer.flush()
 
-    def listen_to_mother_nature(stdin, q):
+    def notify_benchmark(packet, success):
+        """Notifies the benchmark when an operation has been completed.
+
+        @param success: If the operation has been successful
+        @type  success: boolean
+        @param packet: The packet we are providing an answer for.
+        @type  packet: dict
+        """
+        send_msgpack_packet(msgpack.packb({
+            DhtNetworkSubProcess.ANSWER : True,
+            'tid'     : packet[b'tid'],
+            'success' : success
+        }))
+
+    def send_stats(packet, stats):
+        send_msgpack_packet(msgpack.packb({
+            DhtNetworkSubProcess.ANSWER : True,
+            'tid'   : packet[b'tid'],
+            'stats' : stats
+        }))
+
+    def listen_to_mother_nature(q):
         global quit
-
-        def parse_req(req):
-            split_req = req.split(' ')
-
-            op = split_req[0]
-            hashes = [this_hash.replace('\n', '').encode() for this_hash in split_req[1:]]
-
-            return (op, hashes)
-
         while not quit:
-            req = stdin.readline()
-            parsed_req = parse_req(req)
-            q.put(parsed_req)
-            with lock:
-                lock.notify()
+            for p in msgpack.Unpacker(sys.stdin.buffer.raw):
+                if isinstance(p, dict) and DhtNetworkSubProcess.REQUEST.encode() in p:
+                    with lock:
+                        q.put(p)
+                        lock.notify()
 
     def handler(signum, frame):
         global quit
@@ -466,48 +516,52 @@ if __name__ == '__main__':
         net.resize(args.node_num)
 
         q = queue.Queue()
-        t = threading.Thread(target=listen_to_mother_nature, args=(sys.stdin, q))
+        t = threading.Thread(target=listen_to_mother_nature, args=tuple([q]))
         t.daemon = True
         t.start()
 
-        notify_benchmark()
-
         msg_stats = []
 
         with lock:
             while not quit:
-                lock.wait()
                 try:
-                    req,req_args = q.get_nowait()
+                    packet = q.get_nowait()
                 except queue.Empty:
-                    pass
+                    lock.wait()
                 else:
-                    NODE_PUT_REQ              = DhtNetworkSubProcess.NODE_PUT_REQ.decode()
-                    NEW_NODE_REQ              = DhtNetworkSubProcess.NEW_NODE_REQ.decode()
-                    REMOVE_NODE_REQ           = DhtNetworkSubProcess.REMOVE_NODE_REQ.decode()
-                    SHUTDOWN_NODE_REQ         = DhtNetworkSubProcess.SHUTDOWN_NODE_REQ.decode()
-                    SHUTDOWN_REPLACE_NODE_REQ = DhtNetworkSubProcess.SHUTDOWN_REPLACE_NODE_REQ.decode()
-                    SHUTDOWN_CLUSTER_REQ      = DhtNetworkSubProcess.SHUTDOWN_CLUSTER_REQ.decode()
-                    DUMP_STORAGE_REQ          = DhtNetworkSubProcess.DUMP_STORAGE_REQ.decode()
-                    MESSAGE_STATS             = DhtNetworkSubProcess.MESSAGE_STATS.decode()
+                    NODE_PUT_REQ              = DhtNetworkSubProcess.NODE_PUT_REQ
+                    NEW_NODE_REQ              = DhtNetworkSubProcess.NEW_NODE_REQ
+                    REMOVE_NODE_REQ           = DhtNetworkSubProcess.REMOVE_NODE_REQ
+                    SHUTDOWN_NODE_REQ         = DhtNetworkSubProcess.SHUTDOWN_NODE_REQ
+                    SHUTDOWN_REPLACE_NODE_REQ = DhtNetworkSubProcess.SHUTDOWN_REPLACE_NODE_REQ
+                    SHUTDOWN_CLUSTER_REQ      = DhtNetworkSubProcess.SHUTDOWN_CLUSTER_REQ
+                    DUMP_STORAGE_REQ          = DhtNetworkSubProcess.DUMP_STORAGE_REQ
+                    MESSAGE_STATS             = DhtNetworkSubProcess.MESSAGE_STATS
 
-                    if req in [SHUTDOWN_NODE_REQ,
-                               SHUTDOWN_REPLACE_NODE_REQ,
-                               REMOVE_NODE_REQ]:
-                        def delete_request(req, n):
+                    req = packet[b'req'].decode()
+                    success = True
+                    if req in [SHUTDOWN_NODE_REQ, SHUTDOWN_REPLACE_NODE_REQ, REMOVE_NODE_REQ]:
+                        def delete_request(req, nid):
                             global msg_stats
+                            if not nid:
+                                return
                             if req == SHUTDOWN_NODE_REQ:
-                                net.end_node(id=n, shutdown=True, last_msg_stats=msg_stats)
+                                net.end_node(id=nid, shutdown=True, last_msg_stats=msg_stats)
                             elif req == SHUTDOWN_REPLACE_NODE_REQ:
-                                net.replace_node(id=n, shutdown=True, last_msg_stats=msg_stats)
+                                net.replace_node(id=nid, shutdown=True, last_msg_stats=msg_stats)
                             elif req == REMOVE_NODE_REQ:
-                                net.end_node(id=n, last_msg_stats=msg_stats)
+                                net.end_node(id=nid, last_msg_stats=msg_stats)
 
-                        if len(req) > 0:
-                            for n in req_args:
-                                delete_request(req, n)
+                        nodes = packet[b'ids']
+                        if nodes:
+                            for nid in nodes:
+                                delete_request(req, nid)
                         else:
-                            delete_request(req, net.get().getNodeId())
+                            n = net.get()
+                            if n:
+                                delete_request(req, n.getNodeId())
+                            else:
+                                success = False
                     elif req == SHUTDOWN_CLUSTER_REQ:
                         for n in net.nodes:
                             net.end_node(id=n[2], shutdown=True, last_msg_stats=msg_stats)
@@ -515,20 +569,26 @@ if __name__ == '__main__':
                     elif req == NEW_NODE_REQ:
                         net.launch_node()
                     elif req == NODE_PUT_REQ:
-                        _hash, v = req_args[:2]
-                        net.get().put(InfoHash(_hash), Value(v))
-
+                        _hash = packet[b'hash']
+                        v = packet[b'value']
+                        n = net.get()
+                        if n:
+                            n.put(InfoHash(_hash), Value(v))
+                        else:
+                            success = False
                     elif req == DUMP_STORAGE_REQ:
-                        for n in [m[1] for m in net.nodes if m[1].getNodeId() in req_args]:
+                        hashes = packet[b'ids']
+                        for n in [m[1] for m in net.nodes if m[1].getNodeId() in hashes]:
                             net.log(n.getStorageLog())
-                    elif MESSAGE_STATS in req:
+                    elif req == MESSAGE_STATS:
                         stats = sum([np.array(x) for x in [net.getMessageStats()]+msg_stats])
-                        notify_benchmark(answer=[stats])
+                        send_stats(packet, [int(_) for _ in stats])
                         msg_stats.clear()
                         continue
-                    notify_benchmark()
+                    notify_benchmark(packet, success)
     except Exception as e:
-        DhtNetwork.log(e)
+        traceback.print_tb(e.__traceback__)
+        print(type(e).__name__+':', e, file=sys.stderr)
     finally:
         if net:
             net.resize(0)

python/tools/dht/tests.py

@@ -1,8 +1,9 @@
 # -*- coding: utf-8 -*-
-# Copyright (C) 2015 Savoir-Faire Linux Inc.
+# Copyright (C) 2015-2019 Savoir-Faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
 
+import sys
 import os
 import threading
 import random
@@ -10,6 +11,7 @@ import string
 import time
 import subprocess
 import re
+import traceback
 import collections
 
 from matplotlib.ticker import FuncFormatter
@@ -33,8 +35,22 @@ bit_format = None
 Kbit_format = FuncFormatter(lambda x, pos: '%1.1f' % (x*1024**-1) + 'Kb')
 Mbit_format = FuncFormatter(lambda x, pos: '%1.1f' % (x*1024**-2) + 'Mb')
 
+def random_str_val(size=1024):
+    """Creates a random string value of specified size.
+
+    @param size:  Size, in bytes, of the value.
+    @type  size:  int
+
+    @return:  Random string value
+    @rtype :  str
+    """
+    return ''.join(random.choice(string.hexdigits) for _ in range(size))
+
+
 def random_hash():
-    return InfoHash(''.join(random.SystemRandom().choice(string.hexdigits) for _ in range(40)).encode())
+    """Creates random InfoHash.
+    """
+    return InfoHash(random_str_val(size=40).encode())
 
 def timer(f, *args):
     """
@@ -94,6 +110,21 @@ def display_plot(yvals, xvals=None, yformatter=None, display_time=3, **kwargs):
         plt.plot(yvals, **kwargs)
     plt.pause(display_time)
 
+def display_traffic_plot(ifname):
+    """Displays the traffic plot for a given interface name.
+
+    @param ifname:  Interface name.
+    @type  ifname:  string
+    """
+    ydata = []
+    xdata = []
+    # warning: infinite loop
+    interval = 2
+    for rate in iftop_traffic_data(ifname, interval=interval):
+        ydata.append(rate)
+        xdata.append((xdata[-1] if len(xdata) > 0 else 0) + interval)
+        display_plot(ydata, xvals=xdata, yformatter=Kbit_format, color='blue')
+
 def iftop_traffic_data(ifname, interval=2, rate_type='send_receive'):
     """
     Generator (yields data) function collecting traffic data from iftop
@@ -355,15 +386,15 @@ class DhtFeatureTest(FeatureTest):
     @staticmethod
     def getcb(value):
         vstr = value.__str__()[:100]
-        DhtNetwork.log('[GET]: %s' % vstr + ("..." if len(vstr) > 100 else ""))
+        DhtNetwork.Log.log('[GET]: %s' % vstr + ("..." if len(vstr) > 100 else ""))
         DhtFeatureTest.foreignValues.append(value)
         return True
 
     @staticmethod
     def putDoneCb(ok, nodes):
-        if not ok:
-            DhtNetwork.log("[PUT]: failed!")
         with FeatureTest.lock:
+            if not ok:
+                DhtNetwork.Log.log("[PUT]: failed!")
             FeatureTest.done -= 1
             FeatureTest.lock.notify()
 
@@ -371,7 +402,7 @@ class DhtFeatureTest(FeatureTest):
     def getDoneCb(ok, nodes):
         with FeatureTest.lock:
             if not ok:
-                DhtNetwork.log("[GET]: failed!")
+                DhtNetwork.Log.log("[GET]: failed!")
             else:
                 for node in nodes:
                     if not node.getNode().isExpired():
@@ -382,10 +413,10 @@ class DhtFeatureTest(FeatureTest):
     def _dhtPut(self, producer, _hash, *values):
         with FeatureTest.lock:
             for val in values:
-                    vstr = val.__str__()[:100]
-                    DhtNetwork.log('[PUT]:', _hash.toString(), '->', vstr + ("..." if len(vstr) > 100 else ""))
-                    FeatureTest.done += 1
-                    producer.put(_hash, val, DhtFeatureTest.putDoneCb)
+                vstr = val.__str__()[:100]
+                DhtNetwork.Log.log('[PUT]:', _hash.toString(), '->', vstr + ("..." if len(vstr) > 100 else ""))
+                FeatureTest.done += 1
+                producer.put(_hash, val, DhtFeatureTest.putDoneCb)
             while FeatureTest.done > 0:
                 FeatureTest.lock.wait()
 
@@ -394,7 +425,7 @@ class DhtFeatureTest(FeatureTest):
         DhtFeatureTest.foreignNodes = []
         with FeatureTest.lock:
             FeatureTest.done += 1
-            DhtNetwork.log('[GET]:', _hash.toString())
+            DhtNetwork.Log.log('[GET]:', _hash.toString())
             consumer.get(_hash, DhtFeatureTest.getcb, DhtFeatureTest.getDoneCb)
             while FeatureTest.done > 0:
                 FeatureTest.lock.wait()
@@ -475,22 +506,22 @@ class PersistenceTest(DhtFeatureTest):
     def _result(self, local_values, new_nodes):
         bootstrap = self._bootstrap
         if not DhtFeatureTest.successfullTransfer(local_values, DhtFeatureTest.foreignValues):
-            DhtNetwork.log('[GET]: Only %s on %s values persisted.' %
+            DhtNetwork.Log.log('[GET]: Only %s on %s values persisted.' %
                     (len(DhtFeatureTest.foreignValues), len(local_values)))
         else:
-            DhtNetwork.log('[GET]: All values successfully persisted.')
+            DhtNetwork.Log.log('[GET]: All values successfully persisted.')
         if DhtFeatureTest.foreignValues:
             if new_nodes:
-                DhtNetwork.log('Values are newly found on:')
+                DhtNetwork.Log.log('Values are newly found on:')
                 for node in new_nodes:
-                    DhtNetwork.log(node)
+                    DhtNetwork.Log.log(node)
                 if self._dump_storage:
-                    DhtNetwork.log('Dumping all storage log from '\
+                    DhtNetwork.Log.log('Dumping all storage log from '\
                                   'hosting nodes.')
                     for proc in self._workbench.procs:
-                        proc.sendNodesRequest(DhtNetworkSubProcess.DUMP_STORAGE_REQ, DhtFeatureTest.foreignNodes)
+                        proc.sendClusterRequest(DhtNetworkSubProcess.DUMP_STORAGE_REQ, DhtFeatureTest.foreignNodes)
             else:
-                DhtNetwork.log("Values didn't reach new hosting nodes after shutdown.")
+                DhtNetwork.Log.log("Values didn't reach new hosting nodes after shutdown.")
 
     def run(self):
         try:
@@ -505,7 +536,8 @@ class PersistenceTest(DhtFeatureTest):
             else:
                 raise NameError("This test is not defined '" + self._test + "'")
         except Exception as e:
-            print(e)
+            traceback.print_tb(e.__traceback__)
+            print(type(e).__name__+':', e, file=sys.stderr)
         finally:
             if self._traffic_plot or self._op_plot:
                 plot_fname = "traffic-plot"
@@ -527,68 +559,86 @@ class PersistenceTest(DhtFeatureTest):
         bootstrap = self._bootstrap
         # Value representing an ICE packet. Each ICE packet is around 1KB.
         VALUE_SIZE = 1024
-        NUM_VALUES = self._num_values/wb.node_num if self._num_values else 5
-        nr_values = NUM_VALUES * wb.node_num
-        nr_nodes = wb.node_num
-        nr_nodes_cv = threading.Condition()
+        num_values_per_hash = self._num_values/wb.node_num if self._num_values else 5
 
-        values = [b''.join(random.choice(string.hexdigits).encode() for _ in range(VALUE_SIZE)) for __ in range(NUM_VALUES)]
+        # nodes and values counters
+        total_nr_values = 0
+        nr_nodes = wb.node_num
+        op_cv = threading.Condition()
+
+        # values string in string format. Used for sending cluster request.
         hashes = [random_hash() for _ in range(wb.node_num)]
 
-        # initial set of values
-        i = 0
-        for h in hashes:
-           self._dhtPut(bootstrap.front(), h, *[Value(v) for v in values])
-           print("at: ", i)
-           i += 1
-
-        def normalBehavior(do, t, log=None):
-            nonlocal nr_values
+        def normalBehavior(do, t):
+            nonlocal total_nr_values, op_cv
             while True:
-                do()
-                time.sleep(random.choice(range(t)))
+                with op_cv:
+                    do()
+                time.sleep(random.uniform(0.0, float(t)))
 
         def putRequest():
-            nonlocal hashes, values, nr_values
-            nr_values += 1
-            DhtNetwork.log("Random value put on the DHT.", "(now "+ str(nr_values)+" values on the dht)")
-            random.choice(wb.procs).sendNodePutRequest(random.choice(hashes).toString(), random.choice(values))
-        puts = threading.Thread(target=normalBehavior, args=(putRequest, 30))
+            nonlocal hashes, VALUE_SIZE, total_nr_values
+            lock = threading.Condition()
+            def dcb(success):
+                nonlocal total_nr_values, lock
+                if success:
+                    total_nr_values += 1
+                    DhtNetwork.Log.log("INFO: "+ str(total_nr_values)+" values put on the dht since begining")
+                with lock:
+                    lock.notify()
+            with lock:
+                DhtNetwork.Log.warn("Random value put on the DHT...")
+                random.choice(wb.procs).sendClusterPutRequest(random.choice(hashes).toString(),
+                                                              random_str_val(size=VALUE_SIZE).encode(),
+                                                              done_cb=dcb)
+                lock.wait()
+
+        puts = threading.Thread(target=normalBehavior, args=(putRequest, 30.0/wb.node_num))
         puts.daemon = True
         puts.start()
+
         def newNodeRequest():
             nonlocal nr_nodes
-            with nr_nodes_cv:
+            lock = threading.Condition()
+            def dcb(success):
+                nonlocal nr_nodes, lock
                 nr_nodes += 1
-                DhtNetwork.log("Node joining the DHT.", "(now "+str(nr_nodes)+" nodes on the dht)")
-                nr_nodes_cv.notify()
-            random.choice(wb.procs).sendNodesRequest(DhtNetworkSubProcess.NEW_NODE_REQ)
-        connections = threading.Thread(target=normalBehavior, args=(newNodeRequest, 1*60))
+                DhtNetwork.Log.log("INFO: now "+str(nr_nodes)+" nodes on the dht")
+                with lock:
+                    lock.notify()
+            with lock:
+                DhtNetwork.Log.warn("Node joining...")
+                random.choice(wb.procs).sendClusterRequest(DhtNetworkSubProcess.NEW_NODE_REQ, done_cb=dcb)
+                lock.wait()
+
+        connections = threading.Thread(target=normalBehavior, args=(newNodeRequest, 1*50.0/wb.node_num))
         connections.daemon = True
         connections.start()
+
         def shutdownNodeRequest():
             nonlocal nr_nodes
-            with nr_nodes_cv:
-                nr_nodes -= 1
-                DhtNetwork.log("Node quitting the DHT.", "(now "+str(nr_nodes)+" nodes on the dht)")
-                nr_nodes_cv.notify()
-            random.choice(wb.procs).sendNodesRequest(DhtNetworkSubProcess.SHUTDOWN_NODE_REQ)
-        shutdowns = threading.Thread(target=normalBehavior, args=(shutdownNodeRequest, 1*60))
+            lock = threading.Condition()
+            def dcb(success):
+                nonlocal nr_nodes, lock
+                if success:
+                    nr_nodes -= 1
+                    DhtNetwork.Log.log("INFO: now "+str(nr_nodes)+" nodes on the dht")
+                else:
+                    DhtNetwork.Log.err("Oops.. No node to shutodwn.")
+
+                with lock:
+                    lock.notify()
+            with lock:
+                DhtNetwork.Log.warn("Node shutting down...")
+                random.choice(wb.procs).sendClusterRequest(DhtNetworkSubProcess.SHUTDOWN_NODE_REQ, done_cb=dcb)
+                lock.wait()
+
+        shutdowns = threading.Thread(target=normalBehavior, args=(shutdownNodeRequest, 1*60.0/wb.node_num))
         shutdowns.daemon = True
         shutdowns.start()
 
-        for h in hashes:
-           self._trigger_dp(trigger_nodes, h)
-
         if self._traffic_plot:
-            ydata = []
-            xdata = []
-            # warning: infinite loop
-            interval = 2
-            for rate in iftop_traffic_data("br"+wb.ifname, interval=interval):
-                ydata.append(rate)
-                xdata.append((xdata[-1] if len(xdata) > 0 else 0) + interval)
-                display_plot(ydata, xvals=xdata, yformatter=Kbit_format, color='blue')
+            display_traffic_plot('br'+wb.ifname)
         else:
             # blocks in matplotlib thread
             while True:
@@ -618,36 +668,54 @@ class PersistenceTest(DhtFeatureTest):
         self._dhtGet(consumer, myhash)
         if not DhtFeatureTest.successfullTransfer(local_values, DhtFeatureTest.foreignValues):
             if DhtFeatureTest.foreignValues:
-                DhtNetwork.log('[GET]: Only ', len(DhtFeatureTest.foreignValues) ,' on ',
+                DhtNetwork.Log.log('[GET]: Only ', len(DhtFeatureTest.foreignValues) ,' on ',
                         len(local_values), ' values successfully put.')
             else:
-                DhtNetwork.log('[GET]: 0 values successfully put')
+                DhtNetwork.Log.log('[GET]: 0 values successfully put')
 
 
         if DhtFeatureTest.foreignValues and DhtFeatureTest.foreignNodes:
-            DhtNetwork.log('Values are found on :')
+            DhtNetwork.Log.log('Values are found on :')
             for node in DhtFeatureTest.foreignNodes:
-                DhtNetwork.log(node)
+                DhtNetwork.Log.log(node)
 
             for _ in range(max(1, int(self._workbench.node_num/32))):
-                DhtNetwork.log('Removing all nodes hosting target values...')
+                DhtNetwork.Log.log('Removing all nodes hosting target values...')
                 cluster_ops_count = 0
                 for proc in self._workbench.procs:
-                    DhtNetwork.log('[REMOVE]: sending shutdown request to', proc)
-                    proc.sendNodesRequest(
+                    DhtNetwork.Log.log('[REMOVE]: sending shutdown request to', proc)
+                    lock = threading.Condition()
+                    def dcb(success):
+                        nonlocal lock
+                        if not success:
+                            DhtNetwork.Log.err("Failed to shutdown.")
+                        with lock:
+                            lock.notify()
+
+                    with lock:
+                        proc.sendClusterRequest(
                             DhtNetworkSubProcess.SHUTDOWN_NODE_REQ,
-                            DhtFeatureTest.foreignNodes
-                    )
-                    DhtNetwork.log('sending message stats request')
-                    stats = proc.sendGetMessageStats()
-                    cluster_ops_count += sum(stats[1:])
-                    DhtNetwork.log("5 seconds wait...")
+                            DhtFeatureTest.foreignNodes,
+                            done_cb=dcb
+                        )
+                        lock.wait()
+                    DhtNetwork.Log.log('sending message stats request')
+                    def msg_dcb(stats):
+                        nonlocal cluster_ops_count, lock
+                        if stats:
+                            cluster_ops_count += sum(stats[1:])
+                        with lock:
+                            lock.notify()
+                    with lock:
+                        proc.sendGetMessageStats(done_cb=msg_dcb)
+                        lock.wait()
+                    DhtNetwork.Log.log("5 seconds wait...")
                     time.sleep(5)
                 ops_count.append(cluster_ops_count/self._workbench.node_num)
 
                 # checking if values were transfered to new nodes
                 foreignNodes_before_delete = DhtFeatureTest.foreignNodes
-                DhtNetwork.log('[GET]: trying to fetch persistent values')
+                DhtNetwork.Log.log('[GET]: trying to fetch persistent values')
                 self._dhtGet(consumer, myhash)
                 new_nodes = set(DhtFeatureTest.foreignNodes) - set(foreignNodes_before_delete)
 
@@ -656,7 +724,11 @@ class PersistenceTest(DhtFeatureTest):
             if self._op_plot:
                 display_plot(ops_count, color='blue')
         else:
-            DhtNetwork.log("[GET]: either couldn't fetch values or nodes hosting values...")
+            DhtNetwork.Log.log("[GET]: either couldn't fetch values or nodes hosting values...")
+
+        if traffic_plot_thread:
+            print("Traffic plot running for ever. Ctrl-c for stopping it.")
+            traffic_plot_thread.join()
 
     @reset_before_test
     def _replaceClusterTest(self):
@@ -678,16 +750,16 @@ class PersistenceTest(DhtFeatureTest):
         self._dhtGet(consumer, myhash)
         initial_nodes = DhtFeatureTest.foreignNodes
 
-        DhtNetwork.log('Replacing', clusters, 'random clusters successively...')
+        DhtNetwork.Log.log('Replacing', clusters, 'random clusters successively...')
         for n in range(clusters):
             i = random.randint(0, len(self._workbench.procs)-1)
             proc = self._workbench.procs[i]
-            DhtNetwork.log('Replacing', proc)
-            proc.sendNodesRequest(DhtNetworkSubProcess.SHUTDOWN_CLUSTER_REQ)
+            DhtNetwork.Log.log('Replacing', proc)
+            proc.sendClusterRequest(DhtNetworkSubProcess.SHUTDOWN_CLUSTER_REQ)
             self._workbench.stop_cluster(i)
             self._workbench.start_cluster(i)
 
-        DhtNetwork.log('[GET]: trying to fetch persistent values')
+        DhtNetwork.Log.log('[GET]: trying to fetch persistent values')
         self._dhtGet(consumer, myhash)
         new_nodes = set(DhtFeatureTest.foreignNodes) - set(initial_nodes)
 
@@ -712,7 +784,7 @@ class PersistenceTest(DhtFeatureTest):
     # Generating considerable amount of values of size 1KB.
         VALUE_SIZE = 1024
         NUM_VALUES = self._num_values if self._num_values else 50
-        values = [Value(''.join(random.choice(string.hexdigits) for _ in range(VALUE_SIZE)).encode()) for _ in range(NUM_VALUES)]
+        values = [Value(random_str_val(size=VALUE_SIZE).encode()) for _ in range(NUM_VALUES)]
 
         bootstrap.resize(N_PRODUCERS+2)
         consumer = bootstrap.get(N_PRODUCERS+1)
@@ -726,21 +798,21 @@ class PersistenceTest(DhtFeatureTest):
             nodes = set([])
             self._gottaGetThemAllPokeNodes(consumer, hashes, nodes=nodes)
 
-            DhtNetwork.log("Values are found on:")
+            DhtNetwork.Log.log("Values are found on:")
             for n in nodes:
-                DhtNetwork.log(n)
+                DhtNetwork.Log.log(n)
 
-            DhtNetwork.log("Creating 8 nodes around all of these hashes...")
+            DhtNetwork.Log.log("Creating 8 nodes around all of these hashes...")
             for _hash in hashes:
                 self._trigger_dp(trigger_nodes, _hash, count=8)
 
-            DhtNetwork.log('Waiting', DP_TIMEOUT+1, 'minutes for normal storage maintenance.')
+            DhtNetwork.Log.log('Waiting', DP_TIMEOUT+1, 'minutes for normal storage maintenance.')
             time.sleep((DP_TIMEOUT+1)*60)
 
-            DhtNetwork.log('Deleting old nodes from previous search.')
+            DhtNetwork.Log.log('Deleting old nodes from previous search.')
             for proc in self._workbench.procs:
-                DhtNetwork.log('[REMOVE]: sending delete request to', proc)
-                proc.sendNodesRequest(
+                DhtNetwork.Log.log('[REMOVE]: sending delete request to', proc)
+                proc.sendClusterRequest(
                     DhtNetworkSubProcess.REMOVE_NODE_REQ,
                     nodes)
 
@@ -781,7 +853,8 @@ class PerformanceTest(DhtFeatureTest):
             else:
                 raise NameError("This test is not defined '" + self._test + "'")
         except Exception as e:
-            print(e)
+            traceback.print_tb(e.__traceback__)
+            print(type(e).__name__+':', e, file=sys.stderr)
         finally:
             self._bootstrap.resize(1)
 
@@ -820,7 +893,7 @@ class PerformanceTest(DhtFeatureTest):
 
         def getcb(v):
             nonlocal bootstrap
-            DhtNetwork.log("found", v)
+            DhtNetwork.Log.log("found", v)
             return True
 
         def donecb(ok, nodes, start):
@@ -828,7 +901,7 @@ class PerformanceTest(DhtFeatureTest):
             t = time.time()-start
             with lock:
                 if not ok:
-                    DhtNetwork.log("failed !")
+                    DhtNetwork.Log.log("failed !")
                 times.append(t)
                 done -= 1
                 lock.notify()
@@ -860,7 +933,7 @@ class PerformanceTest(DhtFeatureTest):
         for n in range(10):
             self._workbench.replace_cluster()
             plt.pause(2)
-            DhtNetwork.log("Getting 50 random hashes succesively.")
+            DhtNetwork.Log.log("Getting 50 random hashes succesively.")
             for i in range(50):
                 with lock:
                     for _ in range(1):
@@ -895,28 +968,28 @@ class PerformanceTest(DhtFeatureTest):
 
         for _ in range(max(1, int(self._workbench.node_num/32))):
             self._dhtGet(consumer, myhash)
-            DhtNetwork.log("Waiting 15 seconds...")
+            DhtNetwork.Log.log("Waiting 15 seconds...")
             time.sleep(15)
 
             self._dhtPut(producer, myhash, *local_values)
 
             #checking if values were transfered
             self._dhtGet(consumer, myhash)
-            DhtNetwork.log('Values are found on :')
+            DhtNetwork.Log.log('Values are found on :')
             for node in DhtFeatureTest.foreignNodes:
-                DhtNetwork.log(node)
+                DhtNetwork.Log.log(node)
 
             if not DhtFeatureTest.successfullTransfer(local_values, DhtFeatureTest.foreignValues):
                 if DhtFeatureTest.foreignValues:
-                    DhtNetwork.log('[GET]: Only ', len(DhtFeatureTest.foreignValues) ,' on ',
+                    DhtNetwork.Log.log('[GET]: Only ', len(DhtFeatureTest.foreignValues) ,' on ',
                             len(local_values), ' values successfully put.')
                 else:
-                    DhtNetwork.log('[GET]: 0 values successfully put')
+                    DhtNetwork.Log.log('[GET]: 0 values successfully put')
 
-            DhtNetwork.log('Removing all nodes hosting target values...')
+            DhtNetwork.Log.log('Removing all nodes hosting target values...')
             for proc in self._workbench.procs:
-                DhtNetwork.log('[REMOVE]: sending shutdown request to', proc)
-                proc.sendNodesRequest(
+                DhtNetwork.Log.log('[REMOVE]: sending shutdown request to', proc)
+                proc.sendClusterRequest(
                         DhtNetworkSubProcess.SHUTDOWN_NODE_REQ,
                         DhtFeatureTest.foreignNodes
                 )

python/tools/dht/virtual_network_builder.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-# Copyright (c) 2015-2016 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify

python/tools/dhtcluster.py

@@ -0,0 +1,270 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# Copyright (C) 2015-2019 Savoir-faire Linux Inc.
+# Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; If not, see <http://www.gnu.org/licenses/>.
+
+import os, sys, time, cmd
+import signal
+import argparse
+import logging
+import logging.handlers
+
+import opendht as dht
+
+logger = logging.getLogger('dhtcluster')
+
+class NodeCluster(object):
+    nodes = []
+    node_uid = 0
+
+    @staticmethod
+    def run_node(ip4, ip6, p, bootstrap=None, is_bootstrap=False, logfile=None):
+        logger.info("Running node on port %s with bootstrap %s", p, bootstrap)
+        n = dht.DhtRunner()
+        n.run(ipv4=ip4 if ip4 else "", ipv6=ip6 if ip6 else "", port=p, is_bootstrap=is_bootstrap)
+        if logfile:
+            n.enableFileLogging(logfile)
+        if bootstrap:
+            n.bootstrap(bootstrap[0], bootstrap[1])
+        time.sleep(.01)
+        return ((ip4, ip6, p), n, id)
+
+    @staticmethod
+    def find_ip(iface):
+        if not iface or iface == 'any':
+            return ('0.0.0.0','::0')
+
+        if_ip4 = netifaces.ifaddresses(iface)[netifaces.AF_INET][0]['addr']
+        if_ip6 = netifaces.ifaddresses(iface)[netifaces.AF_INET6][0]['addr']
+        return (if_ip4, if_ip6)
+
+    def __init__(self, iface=None, ip4=None, ip6=None, port=4000, bootstrap=None, first_bootstrap=False, logfile=None):
+        NodeCluster.iface = iface
+        self.port = port
+        ips = NodeCluster.find_ip(iface)
+        self.logfile = logfile
+        self.ip4 = ip4 if ip4 else ips[0]
+        self.ip6 = ip6 if ip6 else ips[1]
+        self.bootstrap = bootstrap
+        if bootstrap:
+            self.bootstrap = (bootstrap.hostname, str(bootstrap.port) if bootstrap.port else "4222")
+        else:
+            logger.info("Using fallback bootstrap %s %s", self.ip4, self.port)
+            self.bootstrap = ((self.ip4, str(self.port)))
+        if first_bootstrap:
+            logger.info("Starting bootstrap node")
+            self.nodes.append(NodeCluster.run_node(self.ip4, self.ip6, self.port, self.bootstrap, is_bootstrap=True))
+            self.bootstrap = ((self.ip4, str(self.port)))
+            self.port += 1
+        #print(self.ip4, self.ip6, self.port)
+
+    def front(self):
+        return self.nodes[0][1] if self.nodes else None
+
+    def get(self, i):
+        if not self.nodes or i < 0 or i >= len(self.nodes):
+            return None
+        return self.nodes[i][1]
+
+    def getNodeInfoById(self, id=None):
+        if id:
+            for n in self.nodes:
+                if n[1].getNodeId() == id:
+                    return n
+        return None
+
+    def launch_node(self):
+        node_logfile = (self.logfile + str(self.node_uid) + '.log') if self.logfile else None
+        n = NodeCluster.run_node(self.ip4, self.ip6, self.port, self.bootstrap, logfile=node_logfile)
+        self.nodes.append(n)
+        self.port += 1
+        self.node_uid += 1
+        return n
+
+    def end_node(self):
+        if not self.nodes:
+            return
+        else:
+            n = self.nodes.pop()
+            n[1].join()
+            return True
+
+    def resize(self, n):
+        n = min(n, 500)
+        l = len(self.nodes)
+        if n == l:
+            return
+        if n > l:
+            logger.info("Launching %d nodes bound on IPv4 %s IPv6 %s", n-l, self.ip4, self.ip6)
+            for i in range(l, n):
+                self.launch_node()
+        else:
+            logger.info("Ending %d nodes", l-n)
+            for i in range(n, l):
+                self.end_node()
+
+    def close(self):
+    	self.resize(0)
+
+    def getMessageStats(self):
+        stats = np.array([0,0,0,0,0])
+        for n in self.nodes:
+            stats +=  np.array(n[1].getNodeMessageStats())
+        stats_list = [len(self.nodes)]
+        stats_list.extend(stats.tolist())
+        return stats_list
+
+class ClusterShell(cmd.Cmd):
+    intro = 'Welcome to the OpenDHT node cluster control. Type help or ? to list commands.\n'
+    prompt = '>> '
+    net = None
+    node = None
+    log = False
+    def __init__(self, network):
+        super(ClusterShell, self).__init__()
+        self.net = network
+    def setNode(self, node=None, num=0):
+        if node == self.node:
+            return
+        if self.node:
+            self.node.disableLogging()
+        self.node = node
+        if self.node:
+            self.prompt = '('+str(num)+') >> '
+            if self.log:
+                self.node.enableLogging()
+        else:
+            self.prompt = '>> '
+    def do_exit(self, arg):
+        self.close()
+        return True
+    def do_node(self, arg):
+        if not arg:
+            self.setNode()
+        else:
+            nodenum = int(arg)
+            node = self.net.get(nodenum-1)
+            if not node:
+                print("Invalid node number:", nodenum, " (accepted: 1-", len(self.net.nodes), ")")
+            else:
+                self.setNode(node, nodenum)
+    def do_resize(self, arg):
+        if not arg:
+            return
+        try:
+            nodenum = int(arg)
+            self.net.resize(nodenum)
+        except Exception as e:
+            print("Can't resize:", e)
+    def do_ll(self, arg):
+        if self.node:
+            print('Node', self.node.getNodeId().decode())
+        else:
+            print(len(self.net.nodes), 'nodes running.')
+    def do_ls(self, arg):
+        if self.node:
+            print(self.node.getSearchesLog(0))
+        else:
+            print('No node selected.')
+    def do_log(self, arg):
+        if self.node:
+            self.log = not self.log
+            if self.log:
+                self.node.enableLogging()
+            else:
+                self.node.disableLogging()
+    def do_EOF(self, line):
+        self.close()
+        return True
+    def close(self):
+        if self.net:
+            self.net.close()
+            self.net = None
+
+if __name__ == '__main__':
+    import argparse
+    from urllib.parse import urlparse
+    net = None
+    run = True
+    def clean_quit():
+        global net, run
+        if run:
+            run = False
+            if net:
+                net.resize(0)
+                net = None
+    def quit_signal(signum, frame):
+        clean_quit()
+
+    try:
+        parser = argparse.ArgumentParser(description='Create a dht network of -n nodes')
+        parser.add_argument('-n', '--node-num', help='number of dht nodes to run', type=int, default=32)
+        parser.add_argument('-I', '--iface', help='local interface to bind', default='any')
+        parser.add_argument('-p', '--port', help='start of port range (port, port+node_num)', type=int, default=4000)
+        parser.add_argument('-b', '--bootstrap', help='bootstrap address')
+        group = parser.add_mutually_exclusive_group()
+        group.add_argument('-d', '--daemonize', help='daemonize process', action='store_true')
+        group.add_argument('-s', '--service', help='service mode (not forking)', action='store_true')
+        parser.add_argument('-l', '--log', help='log file prefix')
+        args = parser.parse_args()
+
+        if args.bootstrap:
+            args.bootstrap = urlparse('dht://'+args.bootstrap)
+
+        # setup logging
+        if args.daemonize or args.service:
+            syslog = logging.handlers.SysLogHandler(address = '/dev/log')
+            syslog.setLevel(logging.DEBUG)
+            logger.setLevel(logging.DEBUG)
+            logger.addHandler(syslog)
+        else:
+            logging.basicConfig(stream=sys.stdout,level=logging.DEBUG)
+
+        # start cluster
+        net = NodeCluster(iface=args.iface, port=args.port, bootstrap=args.bootstrap, logfile=args.log)
+
+        # main loop
+        if args.daemonize:
+            import daemon
+            context = daemon.DaemonContext()
+            context.signal_map = {
+                signal.SIGHUP: 'terminate',
+                signal.SIGTERM: quit_signal,
+                signal.SIGINT: quit_signal,
+                signal.SIGQUIT: quit_signal
+            }
+            with context:
+                net.resize(args.node_num)
+                while net:
+                    time.sleep(1)
+        elif args.service:
+            signal.signal(signal.SIGTERM, quit_signal)
+            signal.signal(signal.SIGINT, quit_signal)
+            signal.signal(signal.SIGQUIT, quit_signal)
+            net.resize(args.node_num)
+            while net:
+                time.sleep(1)
+        else:
+            net.resize(args.node_num)
+            ClusterShell(net).cmdloop()
+    except Exception:
+        logger.error("Exception ", exc_info=1)
+    finally:
+        clean_quit()
+        logger.warning("Ending node cluster")
+        for handler in logger.handlers:
+            handler.close()
+            logger.removeHandler(handler)

python/tools/http_server.py

@@ -0,0 +1,78 @@
+#!/usr/bin/env python3
+# Copyright (c) 2016-2019 Savoir-faire Linux Inc.
+# Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; If not, see <http://www.gnu.org/licenses/>.
+
+from twisted.web import server, resource
+from twisted.internet import reactor, endpoints
+from urllib.parse import urlparse
+
+import opendht as dht
+import base64, json
+
+class DhtServer(resource.Resource):
+    isLeaf = True
+    node = dht.DhtRunner()
+
+    def __init__(self, port, bootstrap):
+        self.node.run(port=port)
+        b_url = urlparse('//'+bootstrap)
+        self.node.bootstrap(b_url.hostname, str(b_url.port) if b_url.port else '4222')
+
+    def render_GET(self, req):
+        uri = req.uri[1:].decode().rsplit('?', 1)[0]
+        h = dht.InfoHash(uri.encode()) if len(uri) == 40 else dht.InfoHash.get(uri)
+        w = dht.Where('WHERE '+''.join(k.decode()+'='+req.args[k][0].decode()+','
+            for k in req.args.keys()
+            if k in [b'id', b'user_type', b'value_type', b'owner', b'seq'])[:-1])
+        print('GET', '"'+uri+'"', h, w)
+        res = self.node.get(h, where=w)
+        req.setHeader(b"content-type", b"application/json")
+        return json.dumps({'{:x}'.format(v.id):{'base64':base64.b64encode(v.data).decode()} for v in res}).encode()
+
+    def render_POST(self, req):
+        uri = req.uri[1:]
+        data = req.args[b'data'][0] if b'data' in req.args else None
+        user_type = req.args[b'user_type'][0].decode() if b'user_type' in req.args else ""
+        try:
+            vid = int(req.args[b'id'][0].decode()) if b'id' in req.args else 0
+        except ValueError:
+            vid = 0
+        if not data and b'base64' in req.args:
+            data = base64.b64decode(req.args[b'base64'][0])
+        h = dht.InfoHash(uri) if len(uri) == 40 else dht.InfoHash.get(uri.decode())
+        print('POST', h, data)
+        req.setHeader(b"content-type", b"application/json")
+        if data:
+            v = dht.Value(data)
+            if vid != 0:
+                v.id = vid
+            v.user_type = user_type
+            self.node.put(h, v)
+            return json.dumps({'success':True}).encode()
+        else:
+            req.setResponseCode(400)
+            return json.dumps({'success':False, 'error':'no data parameter'}).encode()
+
+
+if __name__ == '__main__':
+    import argparse
+    parser = argparse.ArgumentParser(description='Launch an OpenDHT node with an HTTP control interface')
+    parser.add_argument('-p', '--port', help='OpenDHT port to bind', type=int, default=4222)
+    parser.add_argument('-hp', '--http-port', help='HTTP port to bind', type=int, default=8080)
+    parser.add_argument('-b', '--bootstrap', help='bootstrap address', default="bootstrap.ring.cx:4222")
+    args = parser.parse_args()
+    endpoints.serverFromString(reactor, "tcp:"+str(args.http_port)).listen(server.Site(DhtServer(args.port, args.bootstrap)))
+    reactor.run()

python/tools/network_monitor.py

@@ -0,0 +1,83 @@
+#!/usr/bin/env python3
+# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
+# Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; If not, see <http://www.gnu.org/licenses/>.
+
+import time
+import argparse
+import time
+import asyncio
+from datetime import datetime
+
+import opendht as dht
+
+parser = argparse.ArgumentParser(description='Create a dht network of -n nodes')
+parser.add_argument('-b', '--bootstrap', help='bootstrap address', default='bootstrap.ring.cx')
+parser.add_argument('-n', '--num-ops', help='number of concurrent operations on the DHT', type=int, default=8)
+parser.add_argument('-p', '--period', help='duration between each test (seconds)', type=int, default=60)
+parser.add_argument('-t', '--timeout', help='timeout for a test to complete (seconds)', type=float, default=15)
+args = parser.parse_args()
+
+node1 = dht.DhtRunner()
+node1.run()
+
+node2 = dht.DhtRunner()
+node2.run()
+
+node1.bootstrap(args.bootstrap)
+node2.bootstrap(args.bootstrap)
+loop = asyncio.get_event_loop()
+
+pending_tests = {}
+keys = [dht.InfoHash.getRandom() for _ in range(args.num_ops)]
+
+def listen_cb(key, val):
+    global pending_tests
+    kstr = str(key)
+    if kstr in pending_tests:
+        if pending_tests[kstr]['v'].id == val.id:
+            pending_tests.pop(kstr, None)
+        else:
+            print("Expected vid", val.id, "got", pending_tests[kstr]['v'].id)
+    return True
+
+def listen(key):
+    node1.listen(key, lambda v: loop.call_soon_threadsafe(listen_cb, key, v))
+
+for key in keys:
+    listen(key)
+
+next_test = time.time()
+while True:
+    start = time.time()
+    #print(datetime.fromtimestamp(start).strftime('%Y-%m-%d %H:%M:%S'), 'Test started')
+    for key in keys:
+        val = dht.Value(str(dht.InfoHash.getRandom()).encode())
+        pending_tests[str(key)] = {'v':val, 'c':0}
+        node2.put(key, val, lambda ok, nodes: ok)
+    while len(pending_tests):
+        loop.stop()
+        loop.run_forever()
+        time.sleep(1)
+        if time.time()-start > args.timeout:
+            print('Test timeout !')
+            exit(1)
+
+    end = time.time()
+    print(datetime.fromtimestamp(end).strftime('%Y-%m-%d %H:%M:%S'),
+          'Test completed successfully in', end-start)
+    next_test += args.period
+    if next_test > end:
+        time.sleep(next_test-end)

python/tools/pingpong.py

@@ -0,0 +1,62 @@
+#!/usr/bin/env python3
+# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
+# Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; If not, see <https://www.gnu.org/licenses/>.
+
+import opendht as dht
+import time
+import asyncio
+
+ping_node = dht.DhtRunner()
+ping_node.run()
+#ping_node.enableLogging()
+#ping_node.bootstrap("bootstrap.ring.cx", "4222")
+
+pong_node = dht.DhtRunner()
+pong_node.run()
+#pong_node.enableLogging()
+pong_node.ping(ping_node.getBound())
+
+loc_ping = dht.InfoHash.get("toto99")
+loc_pong = dht.InfoHash.get(str(loc_ping))
+
+i = 0
+MAX = 2048
+
+loop = asyncio.get_event_loop()
+
+def done(h, ok):
+	print(h, "over", ok)
+
+def ping(node, h):
+	global i
+	time.sleep(0.0075)
+	i += 1
+	if i < MAX:
+		node.put(h, dht.Value(b"hey"), lambda ok, nodes: done(node.getNodeId().decode(), ok))
+	else:
+		loop.stop()
+
+def pong(node, h):
+	print(node.getNodeId().decode(), "got ping", h, i)
+	loop.call_soon_threadsafe(ping, node, h)
+	return True
+
+ping_node.listen(loc_ping, lambda v: pong(pong_node, loc_pong))
+pong_node.listen(loc_pong, lambda v: pong(ping_node, loc_ping))
+
+ping(pong_node, loc_ping)
+
+loop.run_forever()

python/tools/scanner.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2016 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify
@@ -18,9 +18,9 @@
 import time, sys, os
 from pprint import pprint
 from math import cos, sin, pi
-from urllib import request
+import urllib3
 import gzip
-import asyncio
+import queue
 
 sys.path.append('..')
 from opendht import *
@@ -35,14 +35,27 @@ from mpl_toolkits.basemap import Basemap
 
 import GeoIP
 
+http = urllib3.PoolManager()
+
+run = True
 done = 0
 all_nodes = NodeSet()
+nodes_ip4s = {}
+nodes_ip6s = {}
+lats = []
+lons = []
+cities=[]
+xys = []
+colors = []
+all_lines = []
+points = []
+not_found = []
 
 plt.ion()
 plt.figaspect(2.)
 
 fig, axes = plt.subplots(2, 1)
-fig.set_size_inches(12,16,forward=True)
+fig.set_size_inches(8,16,forward=True)
 fig.tight_layout()
 fig.canvas.set_window_title('OpenDHT scanner')
 
@@ -68,11 +81,20 @@ exitbtn = Button(exitax, 'Exit')
 reloadax = plt.axes([0.92, 0.90, 0.07, 0.04])
 button = Button(reloadax, 'Reload')
 
+collection = None
+infos = [ringx.text(1.2, -0.8, ""),
+         ringx.text(1.2, -0.9, "")]
+
+def exitcb(arg):
+    global run
+    run = False
+exitbtn.on_clicked(exitcb)
+
 def check_dl(fname, url):
     if os.path.isfile(fname):
         return
     print('downloading', url)
-    ghandle = gzip.GzipFile(fileobj=request.urlopen(url))
+    ghandle = gzip.GzipFile(fileobj=http.request('GET', url, headers={'User-Agent': 'Mozilla/5.0'}, preload_content=False))
     with open(fname, 'wb') as out:
         for line in ghandle:
             out.write(line)
@@ -90,35 +112,35 @@ r = DhtRunner()
 r.run(port=4112)
 r.bootstrap("bootstrap.ring.cx", "4222")
 
-all_lines = []
+plt.pause(1)
 
-plt.pause(2)
-
-loop = asyncio.get_event_loop()
+q = queue.Queue()
 
 def step(cur_h, cur_depth):
-    global done, all_nodes, all_lines
+    global done
     done += 1
     a = 2.*pi*cur_h.toFloat()
     b = a + 2.*pi/(2**(cur_depth))
+    arc = []
+    lines = []
+    q.put((stepUi, (cur_h, cur_depth, arc, lines)))
     print("step", cur_h, cur_depth)
-    arc = ringx.add_patch(mpatches.Wedge([0.,0,], 1., a*180/pi, b*180/pi, fill=True, color="blue", alpha=0.5))
-    lines = ringx.plot([0, cos(a)], [0, sin(a)], 'k-', lw=1.2)
-    all_lines.extend(lines)
-    r.get(cur_h, gcb, lambda d, nodes: loop.call_soon_threadsafe(nextstep, cur_h, cur_depth, d, nodes, arc, lines))
+    r.get(cur_h, gcb, lambda d, nodes: stepdone(cur_h, cur_depth, d, nodes, arc, lines))
 
-def nextstep(cur_h, cur_depth, ok, nodes, arc=None, lines=[]):
-    global done, all_nodes
-    if arc:
-        arc.remove()
-        del arc
+def stepdone(cur_h, cur_depth, d, nodes, arc, lines):
+    #print("stepdone", cur_h, cur_depth)
+    q.put((nextstepUi, (nodes, arc, lines)))
+    nextstep(cur_h, cur_depth, d, nodes)
+
+def nextstep(cur_h, cur_depth, ok, nodes):
+    global done
     if nodes:
-        for l in lines:
-            l.set_color('#444444')
-        snodes = NodeSet()
-        snodes.extend(nodes)
-        all_nodes.extend(nodes)
-        depth = min(8, InfoHash.commonBits(snodes.first(), snodes.last())+6)
+        commonBits = 0
+        if len(nodes) > 1:
+            snodes = NodeSet()
+            snodes.extend(nodes)
+            commonBits = InfoHash.commonBits(snodes.first(), snodes.last())
+        depth = min(8, commonBits+6)
         if cur_depth < depth:
             for b in range(cur_depth, depth):
                 new_h = InfoHash(cur_h.toString());
@@ -128,14 +150,62 @@ def nextstep(cur_h, cur_depth, ok, nodes, arc=None, lines=[]):
         print("step done with no nodes", ok, cur_h.toString().decode())
     done -= 1
 
-run = True
-def exitcb(arg):
-    global run
-    run = False
-exitbtn.on_clicked(exitcb)
+def stepUi(cur_h, cur_depth, arc, lines):
+    global all_lines
+    a = 2.*pi*cur_h.toFloat()
+    b = a + 2.*pi/(2**(cur_depth))
+    arc.append(ringx.add_patch(mpatches.Wedge([0.,0,], 1., a*180/pi, b*180/pi, fill=True, color="blue", alpha=0.5)))
+    lines.extend(ringx.plot([0, cos(a)], [0, sin(a)], 'k-', lw=1.2))
+    all_lines.extend(lines)
+
+def nextstepUi(nodes, arc=None, lines=[]):
+    for a in arc:
+        if a:
+            a.remove()
+            del a
+    for l in lines:
+        l.set_color('#aaaaaa')
+    if nodes:
+        appendNodes(nodes)
+
+def appendNodes(nodes):
+    global all_nodes
+    for n in nodes:
+        if all_nodes.insert(n):
+            appendNewNode(n)
+
+def appendNewNode(n):
+    global nodes_ip4s, nodes_ip6s, colors, xys
+    addr = b':'.join(n.getNode().getAddr().split(b':')[0:-1]).decode()
+    colors.append('red' if n.getNode().isExpired() else 'blue')
+    node_val = n.getId().toFloat()
+    xys.append((cos(node_val*2*pi), sin(node_val*2*pi)))
+    georecord = None
+    if addr[0] == '[':
+        addr = addr[1:-1]
+        if addr in nodes_ip6s:
+            nodes_ip6s[addr][1] += 1
+        else:
+            georecord = gi6.record_by_name_v6(addr)
+            nodes_ip6s[addr] = [n, 1, georecord]
+    else:
+        if addr in nodes_ip4s:
+            nodes_ip4s[addr][1] += 1
+        else:
+            georecord = gi.record_by_name(addr)
+            nodes_ip4s[addr] = [n, 1, georecord]
+    if georecord:
+        appendMapPoint(georecord)
+
+def appendMapPoint(res):
+    global lons, lats, cities
+    lons.append(res['longitude'])
+    lats.append(res['latitude'])
+    cities.append(res['city'] if res['city'] else (str(int(res['latitude']))+'-'+str(int(res['longitude']))))
+
 
 def restart(arg):
-    global collection, all_lines, all_nodes, points, done
+    global collection, all_lines, all_nodes, points, done, nodes_ip4s, nodes_ip6s, lats, lons, cities, xys, colors
     if done:
         return
     for l in all_lines:
@@ -143,6 +213,13 @@ def restart(arg):
         del l
     all_lines = []
     all_nodes = NodeSet()
+    nodes_ip4s = {}
+    nodes_ip6s = {}
+    lats = []
+    lons = []
+    cities=[]
+    xys = []
+    colors = []
     if collection:
         collection.remove()
         del collection
@@ -158,78 +235,43 @@ def restart(arg):
     step(start_h, 0)
     plt.draw()
 
-collection = None
-points = []
-not_found = []
-infos = [ringx.text(1.2, -0.8, ""),
-         ringx.text(1.2, -0.9, "")]
-
 def num_nodes(node_set):
     return sorted([x for x in node_set.items()], key=lambda ip: ip[1][1])
 
-def generate_set():
-    node_ipv4 = {}
-    node_ipv6 = {}
-    for n in all_nodes:
-        addr = b''.join(n.getNode().getAddr().split(b':')[0:-1]).decode()
-        if addr[0] == '[':
-            addr = addr[1:-1]
-            if addr in node_ipv6:
-                node_ipv6[addr][1] += 1
-            else:
-                node_ipv6[addr] = [n, 1, gi6.record_by_name_v6(addr)]
-        else:
-            if addr in node_ipv4:
-                node_ipv4[addr][1] += 1
-            else:
-                node_ipv4[addr] = [n, 1, gi.record_by_name(addr)]
-    return num_nodes(node_ipv4), num_nodes(node_ipv6)
-
 def update_plot():
-    global done, m, collection, not_found, points
+    #print("update_plot", done)
+    global m, collection, points
     for p in points:
         p.remove()
         del p
     points = []
-    lats = []
-    lons = []
-    cities=[]
-    colors=[]
-    not_found.clear()
-    ip4s, ip6s = generate_set()
-    ares = []
-    for addr, n in ip4s:
-        ares.append((addr, n[0].getNode(), n[2]))
-    for addr, n in ip6s:
-        ares.append((addr, n[0].getNode(), n[2]))
-    for r in ares:
-        res = r[2]
-        n = r[1]
-        if res:
-            lats.append(res['latitude'])
-            lons.append(res['longitude'])
-            cities.append(res['city'] if res['city'] else (str(int(res['latitude']))+'-'+str(int(res['longitude']))))
-            colors.append('red' if n.isExpired() else 'blue')
-        else:
-            not_found.append(r[0])
-
     x,y = m(lons,lats)
     points.extend(m.plot(x,y,'bo'))
     for name, xpt, ypt in zip(cities, x, y):
         points.append(mpx.text(xpt+50000, ypt+50000, name))
-    node_val = [n.getId().toFloat() for n in all_nodes]
-    xys = [(cos(d*2*pi), sin(d*2*pi)) for d in node_val]
     if collection:
         collection.remove()
         del collection
         collection = None
     collection = ringx.add_collection(RegularPolyCollection(
-                fig.dpi, 6, sizes=(10,), facecolors=colors,
+                int(fig.dpi), 6, sizes=(10,), facecolors=colors,
                 offsets = xys, transOffset = ringx.transData))
 
-    node_ip4s, node_ip6s = generate_set()
-    infos[0].set_text("{} different IPv4s".format(len(node_ip4s)))
-    infos[1].set_text("{} different IPv6s".format(len(node_ip6s)))
+    infos[0].set_text("{} different IPv4s".format(len(nodes_ip4s)))
+    infos[1].set_text("{} different IPv6s".format(len(nodes_ip6s)))
+
+def d(arg):
+   pass
+
+def handle_tasks():
+    while True:
+        try:
+            f = q.get_nowait()
+            f[0](*f[1])
+            q.task_done()
+        except Exception as e:
+            break;
+    update_plot()
 
 if run:
     # start first step
@@ -237,15 +279,9 @@ if run:
     start_h.setBit(159, 1)
     step(start_h, 0)
 
-def d(arg):
-   pass
-
 while run:
     while run and done > 0:
-        loop.stop()
-        loop.run_forever()
-        update_plot()
-        plt.draw()
+        handle_tasks()
         plt.pause(.5)
 
     if not run:
@@ -253,13 +289,14 @@ while run:
 
     button.on_clicked(restart)
 
-    node_ip4s, node_ip6s = generate_set()
+    node_ip4s = num_nodes(nodes_ip4s)
+    node_ip6s = num_nodes(nodes_ip6s)
 
     print(all_nodes.size(), " nodes found")
     print(all_nodes)
-    print(len(not_found), " nodes not geolocalized")
-    for n in not_found:
-        print(n)
+    #print(len(not_found), " nodes not geolocalized")
+    #for n in not_found:
+    #    print(n)
     print('')
     print(len(node_ip4s), " different IPv4s :")
     for ip in node_ip4s:
@@ -269,6 +306,7 @@ while run:
     for ip in node_ip6s:
         print(ip[0], ":", str(ip[1][1]), "nodes",  ("(" + ip[1][2]['city'] + ")") if ip[1][2] and ip[1][2]['city'] else "")
 
+    handle_tasks()
     while run and done == 0:
         plt.pause(.5)
     button.on_clicked(d)

resources/opendht_logo.svg

@@ -0,0 +1,105 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   id="svg3492"
+   version="1.1"
+   inkscape:version="0.91 r13725"
+   xml:space="preserve"
+   width="256"
+   height="256"
+   viewBox="0 0 256 255.99999"
+   inkscape:export-xdpi="90"
+   inkscape:export-ydpi="90"><title
+     id="title3357">OpenDHT</title><metadata
+     id="metadata3498"><rdf:RDF><cc:Work
+         rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" /><dc:title>OpenDHT</dc:title><dc:rights><cc:Agent><dc:title></dc:title></cc:Agent></dc:rights><dc:creator><cc:Agent><dc:title>Savoir-faire Linux Inc.</dc:title></cc:Agent></dc:creator><dc:relation>https://opendht.net</dc:relation></cc:Work></rdf:RDF></metadata><defs
+     id="defs3496"><clipPath
+       clipPathUnits="userSpaceOnUse"
+       id="clipPath3534"><path
+         d="m 0,0 1152,0 0,648 L 0,648 0,0 Z"
+         id="path3536"
+         inkscape:connector-curvature="0" /></clipPath></defs><sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1855"
+     inkscape:window-height="1056"
+     id="namedview3494"
+     showgrid="false"
+     units="px"
+     fit-margin-top="5"
+     fit-margin-right="5"
+     fit-margin-bottom="5"
+     fit-margin-left="5"
+     inkscape:zoom="1.9555556"
+     inkscape:cx="63.161953"
+     inkscape:cy="141.16919"
+     inkscape:window-x="1985"
+     inkscape:window-y="24"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="g3532" /><g
+     id="g3500"
+     inkscape:groupmode="layer"
+     inkscape:label="SFL-logo-DHT"
+     transform="matrix(1.25,0,0,-1.25,-589.00821,604.10631)"><g
+       id="g3530"><g
+         id="g3532"
+         clip-path="url(#clipPath3534)"><g
+           id="g3359"
+           transform="matrix(0.9931555,0,0,0.99058777,1.5489503,0.9813209)"><g
+             transform="translate(485.3798,383.7826)"
+             id="g3538"><path
+               inkscape:connector-curvature="0"
+               id="path3540"
+               style="fill:#47b3d1;fill-opacity:1;fill-rule:nonzero;stroke:none"
+               d="m 0,0 c 0,50.03 40.554,90.586 90.586,90.586 50.028,0 90.587,-40.556 90.587,-90.586 0,-50.03 -40.559,-90.588 -90.587,-90.588 C 40.554,-90.588 0,-50.03 0,0" /></g><g
+             transform="translate(576.0338,313.2273)"
+             id="g3542"><path
+               inkscape:connector-curvature="0"
+               id="path3544"
+               style="fill:#0091ba;fill-opacity:1;fill-rule:nonzero;stroke:none"
+               d="m 0,0 c 0,54.307 -24.009,102.977 -61.954,136.075 -17.613,-16.526 -28.632,-39.996 -28.632,-66.056 0,-49.629 39.916,-89.912 89.393,-90.555 0.396,-0.009 0.792,-0.033 1.193,-0.033 L 0,-0.082 0,0 Z" /></g><g
+             transform="translate(575.9661,292.6626)"
+             id="g3546"><path
+               inkscape:connector-curvature="0"
+               id="path3548"
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+             transform="translate(532.4411,337.497)"
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+               inkscape:connector-curvature="0"
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+               inkscape:connector-curvature="0"
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+               inkscape:connector-curvature="0"
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src/Makefile.am

@@ -1,14 +1,19 @@
-SUBDIRS = argon2
-
 lib_LTLIBRARIES = libopendht.la
 
-AM_CPPFLAGS = -I../include/opendht
-libopendht_la_CXXFLAGS = @CXXFLAGS@
-libopendht_la_LDFLAGS = @LDFLAGS@ @GNUTLS_LIBS@ @nettle_LIBS@
-libopendht_la_LIBADD = ./argon2/libargon2.la
-
-libopendht_la_SOURCES = \
+libopendht_la_CPPFLAGS = @CPPFLAGS@ -I$(top_srcdir)/include/opendht @Argon2_CFLAGS@ @JsonCpp_CFLAGS@ @MsgPack_CFLAGS@
+libopendht_la_LIBADD   = @Argon2_LIBS@ @JsonCpp_LIBS@ @GnuTLS_LIBS@ @Nettle_LIBS@
+libopendht_la_LDFLAGS  = @LDFLAGS@ @Argon2_LDFLAGS@ -version-number @OPENDHT_MAJOR_VERSION@:@OPENDHT_MINOR_VERSION@:@OPENDHT_PATCH_VERSION@
+libopendht_la_SOURCES  = \
         dht.cpp \
+        storage.h \
+        listener.h \
+        request.h \
+        search.h \
+        value_cache.h \
+        op_cache.h \
+        op_cache.cpp \
+        net.h \
+        parsed_message.h \
         node_cache.cpp \
         callbacks.cpp \
         routing_table.cpp \
@@ -21,7 +26,10 @@ libopendht_la_SOURCES = \
         securedht.cpp \
         dhtrunner.cpp \
         default_types.cpp \
-        indexation/pht.cpp
+        log.cpp \
+        peer_discovery.cpp \
+        network_utils.h \
+        network_utils.cpp
 
 if WIN32
 libopendht_la_SOURCES += rng.cpp
@@ -29,13 +37,16 @@ endif
 
 nobase_include_HEADERS = \
         ../include/opendht.h \
+        ../include/opendht/def.h \
         ../include/opendht/dht.h \
         ../include/opendht/callbacks.h \
         ../include/opendht/node_cache.h \
         ../include/opendht/routing_table.h \
         ../include/opendht/network_engine.h \
         ../include/opendht/scheduler.h \
+        ../include/opendht/rate_limiter.h \
         ../include/opendht/utils.h \
+        ../include/opendht/sockaddr.h \
         ../include/opendht/infohash.h \
         ../include/opendht/node.h \
         ../include/opendht/value.h \
@@ -44,5 +55,56 @@ nobase_include_HEADERS = \
         ../include/opendht/dhtrunner.h \
         ../include/opendht/default_types.h \
         ../include/opendht/log.h \
-        ../include/opendht/rng.h \
-        ../include/opendht/indexation/pht.h
+        ../include/opendht/log_enable.h \
+        ../include/opendht/peer_discovery.h \
+        ../include/opendht/rng.h
+
+if ENABLE_PROXY_SERVER
+libopendht_la_SOURCES += dht_proxy_server.cpp thread_pool.h thread_pool.cpp
+nobase_include_HEADERS += ../include/opendht/dht_proxy_server.h
+endif
+
+if ENABLE_PROXY_CLIENT
+libopendht_la_SOURCES += dht_proxy_client.cpp
+nobase_include_HEADERS += ../include/opendht/dht_proxy_client.h ../include/opendht/dht_interface.h
+endif
+
+libopendht_la_SOURCES += base64.h base64.cpp
+if PROXY_CLIENT_OR_SERVER
+nobase_include_HEADERS += ../include/opendht/proxy.h
+endif
+
+if ENABLE_INDEXATION
+libopendht_la_SOURCES += indexation/pht.cpp
+nobase_include_HEADERS += ../include/opendht/indexation/pht.h
+endif
+
+clean-local:
+	rm -rf libargon2.la
+
+######################
+#  ARGON2 submodule  #
+######################
+
+if WITH_INCLUDED_ARGON2
+noinst_LTLIBRARIES         = libargon2.la
+libopendht_la_DEPENDENCIES = libargon2.la
+
+libargon2_la_CFLAGS  = -std=c89 -fPIC -pthread -O3 -Wall -I@top_builddir@/argon2/include -I@top_builddir@/argon2/src
+libargon2_la_SOURCES = \
+        @top_builddir@/argon2/src/argon2.c \
+        @top_builddir@/argon2/src/core.c \
+        @top_builddir@/argon2/src/blake2/blake2b.c \
+        @top_builddir@/argon2/src/thread.c \
+        @top_builddir@/argon2/src/ref.c \
+        @top_builddir@/argon2/src/encoding.c
+
+noinst_HEADERS = \
+        @top_builddir@/argon2/include/argon2.h \
+        @top_builddir@/argon2/src/blake2/blake2.h \
+        @top_builddir@/argon2/src/blake2/blake2-impl.h \
+        @top_builddir@/argon2/src/blake2/blamka-round-ref.h \
+        @top_builddir@/argon2/src/core.h \
+        @top_builddir@/argon2/src/encoding.h \
+        @top_builddir@/argon2/src/thread.h
+endif