http: load ca certs from platform specific stores into x509 store

restartListeners() must be called only when the proxy is connected. Else, the
client will receive a lot of http errors

.travis.yml

@@ -16,13 +16,12 @@ env:
 
 before_install:
   - |
-    # non llvm builds
-    if [[ "$OPENDHT_TEST_JOB" != *"opendht.llvm"* ]]; then
+    if [[ "$OPENDHT_TEST_JOB" == *"opendht.classic"* ]]; then
+      docker pull aberaud/opendht-deps-bionic;
+    fi
+    if [[ "$OPENDHT_TEST_JOB" == *"opendht.proxyclient"* ]] || [[ "$OPENDHT_TEST_JOB" == *"opendht.proxyserver"* ]] || [[ "$OPENDHT_TEST_JOB" == *"opendht.push"* ]]; then
       docker pull aberaud/opendht-deps;
     fi
-
-  - |
-    # classic build
     if [[ "$OPENDHT_TEST_JOB" == *"opendht.llvm"* ]]; then
       docker pull aberaud/opendht-deps-llvm
     fi

CMakeLists.txt

@@ -4,7 +4,7 @@ include(CMakeDependentOption)
 
 project (opendht)
 set (opendht_VERSION_MAJOR 2)
-set (opendht_VERSION_MINOR 0.0)
+set (opendht_VERSION_MINOR 1.6)
 set (opendht_VERSION ${opendht_VERSION_MAJOR}.${opendht_VERSION_MINOR})
 set (PACKAGE_VERSION ${opendht_VERSION})
 set (VERSION "${opendht_VERSION}")
@@ -16,6 +16,7 @@ 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_SYSTEMD_UNIT_FILE_LOCATION "Where to install systemd unit file")
 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)
@@ -29,6 +30,7 @@ CMAKE_DEPENDENT_OPTION(OPENDHT_HTTP "Build embedded http(s) client" OFF "NOT OPE
 option (OPENDHT_PEER_DISCOVERY "Enable multicast peer discovery" ON)
 option (OPENDHT_INDEX "Build DHT indexation feature" OFF)
 option (OPENDHT_TESTS "Add unit tests executable" OFF)
+option (OPENDHT_TESTS_NETWORK "Enable unit tests that require network access" ON)
 option (OPENDHT_C "Build C bindings" OFF)
 
 find_package(Doxygen)
@@ -36,62 +38,84 @@ option (OPENDHT_DOCUMENTATION "Create and install the HTML based API documentati
 
 # 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("-- Found Argon2: " ${argon2_LIBRARY_DIRS} " (found version \"" ${argon2_VERSION} "\")")
-        link_directories (${argon2_LIBRARY_DIRS})
-    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_HTTP)
-    find_package(Restinio REQUIRED)
-    if (Restinio_FOUND)
-        find_library(FMT_LIBRARY fmt)
-        add_library(fmt SHARED IMPORTED)
-        find_library(HTTP_PARSER_LIBRARY http_parser)
-        add_library(http_parser SHARED IMPORTED)
-    endif()
-    if (NOT Jsoncpp_FOUND)
-        message(SEND_ERROR "Jsoncpp is required for DHT proxy support")
-    endif()
-    if (OPENDHT_PROXY_OPENSSL)
-        # https://cmake.org/cmake/help/latest/module/FindOpenSSL.html
-        pkg_search_module(OPENSSL REQUIRED openssl)
-        if (OPENSSL_FOUND)
-            message(STATUS "Found OpenSSL ${OPENSSL_VERSION}")
-            include_directories(${OPENSSL_INCLUDE_DIRS})
+if (NOT MSVC)
+    find_package (Threads)
+    find_package (PkgConfig REQUIRED)
+    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)
+        pkg_search_module(argon2 libargon2)
+        if (argon2_FOUND)
+            message("-- Found Argon2: " ${argon2_LIBRARY_DIRS} " (found version \"" ${argon2_VERSION} "\")")
+            link_directories (${argon2_LIBRARY_DIRS})
         else ()
-            message(SEND_ERROR "OpenSSL is required for DHT proxy as specified")
+            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_HTTP_PARSER_FORK)
-        add_definitions(-DOPENDHT_PROXY_HTTP_PARSER_FORK)
-    endif()
-else()
-    set(OPENDHT_PROXY_OPENSSL OFF)
-endif()
+
+    if (OPENDHT_HTTP)
+        find_package(Restinio REQUIRED)
+        if (Restinio_FOUND)
+            find_library(FMT_LIBRARY fmt)
+            add_library(fmt SHARED IMPORTED)
+            find_library(HTTP_PARSER_LIBRARY http_parser)
+            add_library(http_parser SHARED IMPORTED)
+        endif()
+        if (NOT Jsoncpp_FOUND)
+            message(SEND_ERROR "Jsoncpp is required for DHT proxy support")
+        endif()
+        if (OPENDHT_PROXY_OPENSSL)
+            # https://cmake.org/cmake/help/latest/module/FindOpenSSL.html
+            pkg_search_module(OPENSSL REQUIRED openssl)
+            if (OPENSSL_FOUND)
+                message(STATUS "Found OpenSSL ${OPENSSL_VERSION}")
+                include_directories(${OPENSSL_INCLUDE_DIRS})
+            else ()
+                message(SEND_ERROR "OpenSSL is required for DHT proxy as specified")
+            endif()
+        endif()
+        if (OPENDHT_PROXY_HTTP_PARSER_FORK)
+            add_definitions(-DOPENDHT_PROXY_HTTP_PARSER_FORK)
+        endif()
+    else ()
+        set(OPENDHT_PROXY_OPENSSL OFF)
+    endif ()
+else ()
+    set (WIN32_DEP_DIR ${PROJECT_SOURCE_DIR}/../)
+    include_directories(${WIN32_DEP_DIR}/../msvc/include) # SMP gnutls
+    include_directories(${WIN32_DEP_DIR}/argon2/include)
+    include_directories(${WIN32_DEP_DIR}/jsoncpp/include)
+    list (APPEND opendht_SOURCES
+        src/base64.h
+        src/base64.cpp
+    )
+    add_definitions(-DOPENDHT_JSONCPP)
+    include_directories(${WIN32_DEP_DIR}/msgpack-c/include)
+    if (OPENDHT_HTTP OR OPENDHT_PEER_DISCOVERY)
+        include_directories(
+            ${WIN32_DEP_DIR}/asio/asio/include
+            ${WIN32_DEP_DIR}/openssl/include
+            ${WIN32_DEP_DIR}/restinio/dev
+            ${WIN32_DEP_DIR}/fmt/include
+            ${WIN32_DEP_DIR}/http_parser
+        )
+    endif ()
+endif ()
+
 if (OPENDHT_HTTP OR OPENDHT_PEER_DISCOVERY)
     add_definitions(-DASIO_STANDALONE)
 endif()
@@ -99,9 +123,25 @@ endif()
 # Build flags
 set (CMAKE_CXX_STANDARD 14)
 set (CMAKE_CXX_STANDARD_REQUIRED on)
-set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-return-type -Wall -Wextra -Wnon-virtual-dtor -pedantic-errors -fvisibility=hidden")
-if (OPENDHT_SANITIZE)
-    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fstack-protector-strong")
+
+if (NOT MSVC)
+    set(CXX_WARNINGS -Wno-return-type -Wall -Wextra
+                     -Wnon-virtual-dtor
+                     -pedantic-errors
+                     -fvisibility=hidden)
+    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CXX_WARNINGS}")
+    if (OPENDHT_SANITIZE)
+        set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fstack-protector-strong")
+    endif ()
+else ()
+    add_definitions(-D_WINSOCK_DEPRECATED_NO_WARNINGS
+                    -D_CRT_SECURE_NO_WARNINGS
+                    -DWIN32_LEAN_AND_MEAN
+                    -DSTATIC_GETOPT
+                    -DGNUTLS_INTERNAL_BUILD)
+    set(DISABLE_MSC_WARNINGS "/wd4101 /wd4244 /wd4267 /wd4273 /wd4804 /wd4834 /wd4996")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${DISABLE_MSC_WARNINGS}")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
 endif ()
 set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DMSGPACK_DISABLE_LEGACY_NIL -DMSGPACK_DISABLE_LEGACY_CONVERT")
 
@@ -114,7 +154,7 @@ if (OPENDHT_LOG)
 else ()
     add_definitions(-DOPENDHT_LOG=false)
 endif()
-if (OPENDHT_LTO)
+if (OPENDHT_LTO AND NOT MSVC)
     set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -flto")
     if (CMAKE_COMPILER_IS_GNUCC)
         set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fuse-linker-plugin")
@@ -286,23 +326,81 @@ if(OPENDHT_ARGON2)
     include_directories(argon2/include/)
 endif()
 
+# cross-platform compatibility sources
+set (COMPAT_DIR ${PROJECT_SOURCE_DIR}/src/compat/)
+list (APPEND opendht_SOURCES ${COMPAT_DIR}/os_cert.cpp)
+
+if (MSVC)
+    set (MSC_COMPAT_DIR ${COMPAT_DIR}/msvc/)
+    list (APPEND opendht_SOURCES ${MSC_COMPAT_DIR}/unistd.h)
+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_ARGON2)
-        target_include_directories(opendht-static SYSTEM PRIVATE argon2)
+    if (NOT MSVC)
+        add_library (opendht-static STATIC
+            ${opendht_SOURCES}
+            ${opendht_HEADERS}
+        )
+        set_target_properties (opendht-static PROPERTIES OUTPUT_NAME "opendht")
+        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
+            PRIVATE  ${argon2_LIBRARIES}
+            PUBLIC ${CMAKE_THREAD_LIBS_INIT} ${GNUTLS_LIBRARIES} ${Nettle_STATIC_LIBRARIES}
+                   ${Jsoncpp_STATIC_LIBRARIES} ${FMT_LIBRARY} ${HTTP_PARSER_LIBRARY}
+                   ${OPENSSL_STATIC_LIBRARIES})
     else ()
-        target_include_directories(opendht-static SYSTEM PRIVATE ${argon2_INCLUDE_DIRS})
-    endif ()
-    target_link_libraries(opendht-static
-        PRIVATE  ${argon2_LIBRARIES}
-        PUBLIC ${CMAKE_THREAD_LIBS_INIT} ${GNUTLS_LIBRARIES} ${Nettle_LIBRARIES}
-               ${Jsoncpp_LIBRARIES} ${FMT_LIBRARY} ${HTTP_PARSER_LIBRARY}
-               ${OPENSSL_LIBRARIES})
+        if (OPENDHT_TOOLS)
+            function (add_obj_lib name libfile)
+                add_library(${name} OBJECT IMPORTED)
+                set_property(TARGET ${name} PROPERTY IMPORTED_OBJECTS ${libfile})
+            endfunction ()
+            add_obj_lib (win32_json ${WIN32_DEP_DIR}/../msvc/lib/x64/lib_json.lib)
+            add_obj_lib (win32_gnutls ${WIN32_DEP_DIR}/../msvc/lib/x64/libgnutls.lib)
+            add_obj_lib (win32_argon2 ${WIN32_DEP_DIR}/argon2/vs2015/Argon2Ref/vs2015/build/Argon2Ref.lib)
+            list (APPEND obj_libs
+                $<TARGET_OBJECTS:win32_json>
+                $<TARGET_OBJECTS:win32_gnutls>
+                $<TARGET_OBJECTS:win32_argon2>
+            )
+            if (OPENDHT_HTTP)
+                add_obj_lib (win32_fmt ${WIN32_DEP_DIR}/fmt/msvc/Release/fmt.lib)
+                add_obj_lib (win32_http_parser ${WIN32_DEP_DIR}/http_parser/x64/Release/http-parser.lib)
+                add_obj_lib (win32_ssl ${WIN32_DEP_DIR}/openssl/libssl_static.lib)
+                add_obj_lib (win32_crypto ${WIN32_DEP_DIR}/openssl/libcrypto_static.lib)
+                list (APPEND obj_libs
+                    $<TARGET_OBJECTS:win32_fmt>
+                    $<TARGET_OBJECTS:win32_http_parser>
+                    $<TARGET_OBJECTS:win32_ssl>
+                    $<TARGET_OBJECTS:win32_crypto>
+                )       
+            endif ()
+        else ()
+            list (APPEND win32_Libs
+                ${PROJECT_SOURCE_DIR}/../../msvc/lib/x64/libgnutls.lib
+                ${PROJECT_SOURCE_DIR}/../../msvc/lib/x64/lib_json.lib
+                ${PROJECT_SOURCE_DIR}/../argon2/vs2015/Argon2Ref/vs2015/build/Argon2Ref.lib
+            )
+            list (APPEND win32_Libs
+                ${PROJECT_SOURCE_DIR}/../fmt/msvc/Release/fmt.lib
+                ${PROJECT_SOURCE_DIR}/../http_parser/x64/Release/http-parser.lib
+                ${PROJECT_SOURCE_DIR}/../openssl/libssl.lib
+                ${PROJECT_SOURCE_DIR}/../openssl/libcrypto.lib
+            )
+        endif ()
+        add_library (opendht-static STATIC
+            ${opendht_SOURCES}
+            ${opendht_HEADERS}
+            ${obj_libs}
+        )
+        target_link_libraries(opendht-static PUBLIC ${Win32_STATIC_LIBRARIES} ${Win32_IMPORT_LIBRARIES})    
+        set(CMAKE_STATIC_LINKER_FLAGS "${CMAKE_STATIC_LINKER_FLAGS} /ignore:4006")
+        set_target_properties (opendht-static PROPERTIES OUTPUT_NAME "libopendht")
+    endif()
     install (TARGETS opendht-static DESTINATION ${CMAKE_INSTALL_LIBDIR} EXPORT opendht)
 endif ()
 
@@ -380,7 +478,7 @@ install (FILES ${CMAKE_CURRENT_BINARY_DIR}/opendhtConfigVersion.cmake DESTINATIO
 
 # Unit tests
 if (OPENDHT_TESTS)
-    FIND_PACKAGE(Cppunit REQUIRED)
+    pkg_search_module(Cppunit REQUIRED cppunit)
     # unit testing
     list (APPEND test_FILES
         tests/infohashtester.h
@@ -394,25 +492,28 @@ if (OPENDHT_TESTS)
         tests/threadpooltester.h
         tests/threadpooltester.cpp
     )
-    if (OPENDHT_PROXY_SERVER AND OPENDHT_PROXY_CLIENT)
-        list (APPEND test_FILES
-            tests/httptester.h
-            tests/httptester.cpp
-            tests/dhtproxytester.h
-            tests/dhtproxytester.cpp
-        )
-    endif()
-    if (OPENDHT_PEER_DISCOVERY)
-        list (APPEND test_FILES
-            tests/peerdiscoverytester.h
-            tests/peerdiscoverytester.cpp
-        )
+    if (OPENDHT_TESTS_NETWORK)
+        if (OPENDHT_PROXY_SERVER AND OPENDHT_PROXY_CLIENT)
+            list (APPEND test_FILES
+                tests/httptester.h
+                tests/httptester.cpp
+                tests/dhtproxytester.h
+                tests/dhtproxytester.cpp
+            )
+        endif()
+        if (OPENDHT_PEER_DISCOVERY)
+            list (APPEND test_FILES
+                tests/peerdiscoverytester.h
+                tests/peerdiscoverytester.cpp
+            )
+        endif()
     endif()
     add_executable(opendht_unit_tests
         tests/tests_runner.cpp
         ${test_FILES}
     )
-    target_include_directories(opendht_unit_tests SYSTEM PRIVATE ${CPPUNIT_INCLUDE_DIRS})
+    target_include_directories(opendht_unit_tests SYSTEM PRIVATE ${Cppunit_INCLUDE_DIR})
+    target_link_directories(opendht_unit_tests PRIVATE ${Cppunit_LIBRARY_DIRS})
     if (OPENDHT_SHARED)
         target_link_libraries(opendht_unit_tests opendht)
     else ()
@@ -420,7 +521,7 @@ if (OPENDHT_TESTS)
     endif ()
     target_link_libraries(opendht_unit_tests
        ${CMAKE_THREAD_LIBS_INIT}
-       ${CPPUNIT_LIBRARIES}
+       ${Cppunit_LIBRARIES}
        ${GNUTLS_LIBRARIES}
        ${Jsoncpp_LIBRARIES}
     )

MSVC/.gitignore

@@ -1,248 +0,0 @@
-## Ignore Visual Studio temporary files, build results, and
-## files generated by popular Visual Studio add-ons.
-
-#output directories
-DebugLib/
-Debug/
-ReleaseLib/
-Release/
-.config/
-# User-specific files
-*.suo
-*.user
-*.userosscache
-*.sln.docstates
-*.VC.VC.opendb
-*.VC.db
-*.db
-
-# User-specific files (MonoDevelop/Xamarin Studio)
-*.userprefs
-
-# Build results
-[Dd]ebug/
-[Dd]ebugPublic/
-[Rr]elease/
-[Rr]eleases/
-x64/
-x86/
-bld/
-[Bb]in/
-[Oo]bj/
-
-# Visual Studio 2015 cache/options directory
-.vs/
-# Uncomment if you have tasks that create the project's static files in wwwroot
-#wwwroot/
-
-# MSTest test Results
-[Tt]est[Rr]esult*/
-[Bb]uild[Ll]og.*
-
-# NUNIT
-*.VisualState.xml
-TestResult.xml
-
-# Build Results of an ATL Project
-[Dd]ebugPS/
-[Rr]eleasePS/
-dlldata.c
-
-# DNX
-project.lock.json
-artifacts/
-
-*_i.c
-*_p.c
-*_i.h
-*.ilk
-*.meta
-*.obj
-*.pch
-*.pdb
-*.pgc
-*.pgd
-*.rsp
-*.sbr
-*.tlb
-*.tli
-*.tlh
-*.tmp
-*.tmp_proj
-*.log
-*.vspscc
-*.vssscc
-.builds
-*.pidb
-*.svclog
-*.scc
-
-# Chutzpah Test files
-_Chutzpah*
-
-# Visual C++ cache files
-ipch/
-*.aps
-*.ncb
-*.opendb
-*.opensdf
-*.sdf
-*.cachefile
-
-# Visual Studio profiler
-*.psess
-*.vsp
-*.vspx
-*.sap
-
-# TFS 2012 Local Workspace
-$tf/
-
-# Guidance Automation Toolkit
-*.gpState
-
-# ReSharper is a .NET coding add-in
-_ReSharper*/
-*.[Rr]e[Ss]harper
-*.DotSettings.user
-
-# JustCode is a .NET coding add-in
-.JustCode
-
-# TeamCity is a build add-in
-_TeamCity*
-
-# DotCover is a Code Coverage Tool
-*.dotCover
-
-# NCrunch
-_NCrunch_*
-.*crunch*.local.xml
-nCrunchTemp_*
-
-# MightyMoose
-*.mm.*
-AutoTest.Net/
-
-# Web workbench (sass)
-.sass-cache/
-
-# Installshield output folder
-[Ee]xpress/
-
-# DocProject is a documentation generator add-in
-DocProject/buildhelp/
-DocProject/Help/*.HxT
-DocProject/Help/*.HxC
-DocProject/Help/*.hhc
-DocProject/Help/*.hhk
-DocProject/Help/*.hhp
-DocProject/Help/Html2
-DocProject/Help/html
-
-# Click-Once directory
-publish/
-
-# Publish Web Output
-*.[Pp]ublish.xml
-*.azurePubxml
-# TODO: Comment the next line if you want to checkin your web deploy settings 
-# but database connection strings (with potential passwords) will be unencrypted
-*.pubxml
-*.publishproj
-
-# NuGet Packages
-*.nupkg
-# The packages folder can be ignored because of Package Restore
-**/packages/*
-# except build/, which is used as an MSBuild target.
-!**/packages/build/
-# Uncomment if necessary however generally it will be regenerated when needed
-#!**/packages/repositories.config
-# NuGet v3's project.json files produces more ignoreable files
-*.nuget.props
-*.nuget.targets
-
-# Microsoft Azure Build Output
-csx/
-*.build.csdef
-
-# Microsoft Azure Emulator
-ecf/
-rcf/
-
-# Microsoft Azure ApplicationInsights config file
-ApplicationInsights.config
-
-# Windows Store app package directory
-AppPackages/
-BundleArtifacts/
-
-# Visual Studio cache files
-# files ending in .cache can be ignored
-*.[Cc]ache
-# but keep track of directories ending in .cache
-!*.[Cc]ache/
-
-# Others
-ClientBin/
-~$*
-*~
-*.dbmdl
-*.dbproj.schemaview
-*.pfx
-*.publishsettings
-node_modules/
-orleans.codegen.cs
-
-# RIA/Silverlight projects
-Generated_Code/
-
-# Backup & report files from converting an old project file
-# to a newer Visual Studio version. Backup files are not needed,
-# because we have git ;-)
-_UpgradeReport_Files/
-Backup*/
-UpgradeLog*.XML
-UpgradeLog*.htm
-
-# SQL Server files
-*.mdf
-*.ldf
-
-# Business Intelligence projects
-*.rdl.data
-*.bim.layout
-*.bim_*.settings
-
-# Microsoft Fakes
-FakesAssemblies/
-
-# GhostDoc plugin setting file
-*.GhostDoc.xml
-
-# Node.js Tools for Visual Studio
-.ntvs_analysis.dat
-
-# Visual Studio 6 build log
-*.plg
-
-# Visual Studio 6 workspace options file
-*.opt
-
-# Visual Studio LightSwitch build output
-**/*.HTMLClient/GeneratedArtifacts
-**/*.DesktopClient/GeneratedArtifacts
-**/*.DesktopClient/ModelManifest.xml
-**/*.Server/GeneratedArtifacts
-**/*.Server/ModelManifest.xml
-_Pvt_Extensions
-
-# Paket dependency manager
-.paket/paket.exe
-
-# FAKE - F# Make
-.fake/
-
-!config.h
-contrib/build/

MSVC/dhtchat.vcxproj

@@ -1,168 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup Label="ProjectConfigurations">
-    <ProjectConfiguration Include="Debug|Win32">
-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Debug|x64">
-      <Configuration>Debug</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|x64">
-      <Configuration>Release</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-  </ItemGroup>
-  <PropertyGroup Label="Globals">
-    <ProjectGuid>{8BE7F14D-B227-4D54-9105-7E5473F2D0BA}</ProjectGuid>
-    <RootNamespace>dhtchat</RootNamespace>
-    <WindowsTargetPlatformVersion>$(LatestTargetPlatformVersion)</WindowsTargetPlatformVersion>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>$(DefaultPlatformToolset)</PlatformToolset>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
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-      <PreprocessorDefinitions>OPENDHT_JSONCPP;OPENDHT_PROXY_CLIENT;OPENDHT_PROXY_SERVER;OPENDHT_PUSH_NOTIFICATIONS;_WINSOCK_DEPRECATED_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;ASIO_STANDALONE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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-    <PostBuildEvent>
-      <Command>mkdir $(OutDir)\include
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-copy ..\include\opendht\*.h $(OutDir)\include\opendht
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-      <PreprocessorDefinitions>OPENDHT_JSONCPP;OPENDHT_PROXY_CLIENT;OPENDHT_PROXY_SERVER;OPENDHT_PUSH_NOTIFICATIONS;_WINSOCK_DEPRECATED_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;ASIO_STANDALONE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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-    <PostBuildEvent>
-      <Command>mkdir $(OutDir)\include
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-copy ..\include\opendht\*.h $(OutDir)\include\opendht
-copy ..\include\opendht.h $(OutDir)\include\</Command>
-    </PostBuildEvent>
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-      <OutputFile>$(OutDir)lib\$(PlatformTarget)\$(TargetName)$(TargetExt)</OutputFile>
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-    <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
-      <Optimization>MaxSpeed</Optimization>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\include;$(ProjectDir)..\include\opendht;$(ProjectDir)..\..\..\msvc\include;$(ProjectDir)..\..\include;$(ProjectDir)..\..\argon2\include;$(ProjectDir)..\..\msgpack-c\include;$(ProjectDir)..\..\jsoncpp\include;$(ProjectDir)..\..\openssl\inc32;$(ProjectDir)..\..\asio\asio\include;$(ProjectDir)..\..\restinio\dev;$(ProjectDir)..\..\fmt\include;$(ProjectDir)..\..\http_parser</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>OPENDHT_JSONCPP;OPENDHT_PROXY_CLIENT;OPENDHT_PROXY_SERVER;OPENDHT_PUSH_NOTIFICATIONS;_WINSOCK_DEPRECATED_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;ASIO_STANDALONE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <DisableSpecificWarnings>4804;4800;4101;4267;4244;4503;4273;</DisableSpecificWarnings>
-      <AdditionalOptions>-D_SCL_SECURE_NO_WARNING;%(AdditionalOptions)</AdditionalOptions>
-      <ProgramDataBaseFileName>$(OutDir)lib\$(PlatformTarget)\$(TargetName).pdb</ProgramDataBaseFileName>
-    </ClCompile>
-    <Link>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
-    </Link>
-    <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\$(PlatformTarget)\$(TargetName)$(TargetExt)</OutputFile>
-      <LinkTimeCodeGeneration>false</LinkTimeCodeGeneration>
-    </Lib>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-    <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
-      <Optimization>Full</Optimization>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
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-      <SDLCheck>true</SDLCheck>
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-      <PreprocessorDefinitions>OPENDHT_JSONCPP;OPENDHT_PROXY_CLIENT;OPENDHT_PROXY_SERVER;OPENDHT_PUSH_NOTIFICATIONS;_WINSOCK_DEPRECATED_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;ASIO_STANDALONE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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-      <OptimizeReferences>true</OptimizeReferences>
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-    <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\$(PlatformTarget)\$(TargetName)$(TargetExt)</OutputFile>
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-      <AdditionalLibraryDirectories>
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-    </Lib>
-  </ItemDefinitionGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-  <ImportGroup Label="ExtensionTargets">
-  </ImportGroup>
-</Project>

MSVC/opendht.vcxproj.filters

@@ -1,198 +0,0 @@
-<?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" />
-    <ClCompile Include="..\src\rng.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\op_cache.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\dht_proxy_client.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\peer_discovery.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\network_utils.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\thread_pool.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\http.cpp">
-      <Filter>Source Files</Filter>
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-  </ItemGroup>
-  <ItemGroup>
-    <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>
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-      <Filter>Header Files\opendht</Filter>
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-    <ClInclude Include="unistd.h" />
-    <ClInclude Include="wingetopt.h" />
-    <ClInclude Include="..\include\opendht\def.h">
-      <Filter>Header Files</Filter>
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-    <ClInclude Include="..\src\net.h">
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-    <ClInclude Include="..\src\parsed_message.h">
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-    <ClInclude Include="..\include\opendht\sockaddr.h">
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-      <UniqueIdentifier>{d1ab5bfe-3ab1-45ee-9324-b4b071887668}</UniqueIdentifier>
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-    <Filter Include="Source Files\indexation">
-      <UniqueIdentifier>{939134d3-d5a2-4458-bca8-a10ea9042ea2}</UniqueIdentifier>
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-    <Filter Include="Header Files\opendht">
-      <UniqueIdentifier>{0b46e2d0-4874-404c-bae3-fae8d49b85b8}</UniqueIdentifier>
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-</Project>

README.md

@@ -27,7 +27,7 @@ Build instructions: <https://github.com/savoirfairelinux/opendht/wiki/Build-the-
 
 #### How-to build a simple client app
 ```bash
-g++ main.cpp -std=c++14 -lopendht -lgnutls
+g++ main.cpp -std=c++14 -lopendht
 ```
 
 ## Examples
@@ -51,7 +51,7 @@ int main()
 
     // Join the network through any running node,
     // here using a known bootstrap node.
-    node.bootstrap("bootstrap.ring.cx", "4222");
+    node.bootstrap("bootstrap.jami.net", "4222");
 
     // put some data on the dht
     std::vector<uint8_t> some_data(5, 10);
@@ -82,7 +82,7 @@ node.run()
 
 # Join the network through any running node,
 # here using a known bootstrap node.
-node.bootstrap("bootstrap.ring.cx", "4222")
+node.bootstrap("bootstrap.jami.net", "4222")
 
 # blocking call (provide callback arguments to make the call non-blocking)
 node.put(dht.InfoHash.get("unique_key"), dht.Value(b'some binary data'))

cmake/FindCppunit.cmake

@@ -1,28 +0,0 @@
-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)

configure.ac

@@ -1,7 +1,7 @@
 dnl define macros
 m4_define([opendht_major_version], 2)
-m4_define([opendht_minor_version], 0)
-m4_define([opendht_patch_version], 0)
+m4_define([opendht_minor_version], 1)
+m4_define([opendht_patch_version], 6)
 m4_define([opendht_version],
 		  [opendht_major_version.opendht_minor_version.opendht_patch_version])
 
@@ -140,6 +140,7 @@ AS_IF([test "x$with_jsoncpp" != "xno"],
 AS_IF([test "x$have_jsoncpp" = "xyes"], [
     AC_MSG_NOTICE([Using JsonCpp])
     CPPFLAGS+=" -DOPENDHT_JSONCPP"
+    AC_SUBST(jsoncpp_lib, [", jsoncpp"])
 ], [
     AC_MSG_NOTICE([Not using JsonCpp])
     AM_COND_IF(PROXY_CLIENT_OR_SERVER, AC_MSG_ERROR(["JsonCpp is required for proxy/push notification support"]))
@@ -151,6 +152,7 @@ AS_IF([test "x$with_openssl" != "xno"],
       [have_openssl=no])
 AS_IF([test "x$have_openssl" = "xyes"], [
     AC_MSG_NOTICE([Using OpenSSL])
+    AC_SUBST(openssl_lib, [", openssl"])
 ], [
     AC_MSG_NOTICE([Not using OpenSSL])
 ])
@@ -175,6 +177,7 @@ AM_COND_IF([PROXY_CLIENT_OR_SERVER], [
     # http_parser has no pkgconfig, instead we check with:
     AC_CHECK_LIB(http_parser, exit,, AC_MSG_ERROR([Missing HttpParser library files]))
     AC_CHECK_HEADERS([http_parser.h], [http_parser_headers=yes; break;])
+    AC_SUBST(http_parser_lib, ["-lhttp_parser"])
     AS_IF([test "x$http_parser_headers" != "xyes"], AC_MSG_ERROR([Missing HttpParser headers files]))
 ])
 

docker/Dockerfile

@@ -2,5 +2,5 @@ FROM aberaud/opendht-deps
 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 -DOPENDHT_LTO=On && make -j8 && make install \
+	&& cmake .. -DCMAKE_INSTALL_PREFIX=/usr -DOPENDHT_PYTHON=On -DOPENDHT_LTO=On -DOPENDHT_PROXY_SERVER=On -DOPENDHT_PROXY_CLIENT=On && make -j8 && make install \
 	&& cd ../.. && rm -rf opendht

docker/DockerfileBionic

@@ -1,4 +1,4 @@
-FROM docker.pkg.github.com/savoirfairelinux/opendht/opendht-deps-bionic:2.0.0
+FROM docker.pkg.github.com/savoirfairelinux/opendht/opendht-deps-bionic:2.1.3
 MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 
 RUN git clone https://github.com/savoirfairelinux/opendht.git \

docker/DockerfileDeps

@@ -1,56 +1,27 @@
-FROM ubuntu:16.04
+FROM ubuntu:20.04
 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 \
-        libgnutls28-dev libuv1-dev cython3 python3-dev python3-setuptools libcppunit-dev libjsoncpp-dev \
-        autotools-dev autoconf libssl-dev \
+        dialog apt-utils \
+    && apt-get clean \
+    && echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
+
+RUN apt-get update && apt-get install -y \
+        build-essential pkg-config cmake git wget \
+        autotools-dev autoconf \
+        cython3 python3-dev python3-setuptools \
+        libncurses5-dev libreadline-dev nettle-dev libcppunit-dev \
+        libgnutls28-dev libuv1-dev libjsoncpp-dev libargon2-dev \
+        libssl-dev libfmt-dev libhttp-parser-dev libasio-dev libmsgpack-dev \
     && apt-get clean
 
-RUN echo "*** Installing libfmt ***" \
-    && wget https://github.com/fmtlib/fmt/archive/5.3.0.tar.gz \
-    && tar -xzf 5.3.0.tar.gz && cd fmt-5.3.0/ \
-    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_SHARED_LIBS=On -DFMT_TEST=Off -DFMT_DOC=Off . \
-    && make -j8 && make install \
-    && cd ../ && rm -rf fmt*
-
-# libhttp-parser-dev is 2.1-2 which is too old
-RUN echo "*** Building nodejs/http_parser dependency ***" \
-    && wget https://github.com/nodejs/http-parser/archive/v2.9.2.tar.gz \
-    && tar xvf v2.9.2.tar.gz && cd http-parser-2.9.2/ \
-    && PREFIX=/usr make -j8 install \
-    && cd ../ && rm -rf http-parser*
-
-# libasio-dev (1.10.6-3) is too old
-RUN echo "** Building a recent version of asio ***" \
-    && wget https://github.com/aberaud/asio/archive/a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571.tar.gz \
-    && tar -xvf a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571.tar.gz && cd asio-a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571/asio \
-    && ./autogen.sh && ./configure --prefix=/usr --without-boost --disable-examples --disable-tests  \
-    && make install \
-    && cd ../../ && rm -rf asio*
-
 RUN echo "*** Downloading RESTinio ***" \
     && mkdir restinio && cd restinio \
-    && wget https://github.com/aberaud/restinio/archive/a7a10e419d9089c5b8ee63f5e3098c892f22fae4.tar.gz \
-    && ls -l && tar -xzf a7a10e419d9089c5b8ee63f5e3098c892f22fae4.tar.gz \
-    && cd restinio-a7a10e419d9089c5b8ee63f5e3098c892f22fae4/dev \
+    && wget https://github.com/aberaud/restinio/archive/2c0b6f5e5ba04d7a74e8406a3df1fd433680599d.tar.gz \
+    && ls -l && tar -xzf 2c0b6f5e5ba04d7a74e8406a3df1fd433680599d.tar.gz \
+    && cd restinio-2c0b6f5e5ba04d7a74e8406a3df1fd433680599d/dev \
     && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=OFF -DRESTINIO_SAMPLE=OFF \
              -DRESTINIO_INSTALL_SAMPLES=OFF -DRESTINIO_BENCH=OFF -DRESTINIO_INSTALL_BENCHES=OFF \
              -DRESTINIO_FIND_DEPS=ON -DRESTINIO_ALLOW_SOBJECTIZER=Off -DRESTINIO_USE_BOOST_ASIO=none . \
     && make -j8 && make install \
-    && cd ../../ && rm -rf restinio*
-
-
-# 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-2.1.5 msgpack-2.1.5.tar.gz
+    && cd ../../.. && rm -rf restinio

docker/DockerfileDepsBionic

@@ -3,11 +3,13 @@ MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 
 RUN echo "APT::Acquire::Retries \"3\";" > /etc/apt/apt.conf.d/80-retries
 RUN apt-get update && apt-get install -y \
-        apt-transport-https build-essential cmake git wget libncurses5-dev libreadline-dev nettle-dev \
+        apt-transport-https build-essential pkg-config git wget libncurses5-dev libreadline-dev nettle-dev \
         libgnutls28-dev libuv1-dev cython3 python3-dev python3-setuptools libcppunit-dev libjsoncpp-dev \
         autotools-dev autoconf libfmt-dev libhttp-parser-dev libmsgpack-dev libssl-dev \
     && apt-get clean
 
+RUN apt-get update && apt-get install -y python3-pip && pip3 install --upgrade cmake
+
 # libasio-dev (1.10) is too old
 RUN echo "** Building a recent version of asio ***" \
     && wget https://github.com/aberaud/asio/archive/a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571.tar.gz \

docker/DockerfileDepsLlvm

@@ -1,62 +1,28 @@
-FROM ubuntu:16.04
+FROM ubuntu:20.04
 MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+RUN apt-get update && apt-get install -y \
+        dialog apt-utils \
+    && apt-get clean \
+    && echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
+
 RUN apt-get update \
-    && apt-get install -y llvm llvm-dev clang make cmake git wget libncurses5-dev libreadline-dev \
+    && apt-get install -y llvm llvm-dev clang make cmake pkg-config git wget libncurses5-dev libreadline-dev \
        nettle-dev libgnutls28-dev libuv1-dev libmsgpack-dev libjsoncpp-dev cython3 python3-dev \
        python3-setuptools libcppunit-dev python3-pip \
-       autotools-dev autoconf libssl-dev \
+       autotools-dev autoconf libssl-dev libargon2-dev \
+       libfmt-dev libhttp-parser-dev libasio-dev \
     && apt-get remove -y gcc g++ && apt-get autoremove -y && apt-get clean
 
 ENV CC cc
 ENV CXX c++
 
-RUN echo "*** Installing libfmt ***" \
-    && wget https://github.com/fmtlib/fmt/archive/5.3.0.tar.gz \
-    && tar -xzf 5.3.0.tar.gz && cd fmt-5.3.0/ \
-    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_SHARED_LIBS=On -DFMT_TEST=Off -DFMT_DOC=Off . \
-    && make -j8 && make install \
-    && cd ../ && rm -rf fmt*
-
-# libhttp-parser-dev is 2.1-2 which is too old
-RUN echo "*** Building nodejs/http_parser dependency ***" \
-    && wget https://github.com/nodejs/http-parser/archive/v2.9.2.tar.gz \
-    && tar xvf v2.9.2.tar.gz && cd http-parser-2.9.2/ \
-    && PREFIX=/usr make -j8 install \
-    && cd ../ && rm -rf http-parser*
-
-# libasio-dev (1.10.6-3) is too old
-RUN echo "** Building a recent version of asio ***" \
-    && wget https://github.com/aberaud/asio/archive/a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571.tar.gz \
-    && tar -xvf a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571.tar.gz && cd asio-a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571/asio \
-    && ./autogen.sh && ./configure --prefix=/usr --without-boost --disable-examples --disable-tests  \
-    && make install \
-    && cd ../../ && rm -rf asio*
-
-#patch for https://github.com/Stiffstream/restinio-conan-example/issues/2
-RUN apt-get update && apt-get install -y python3-pip && pip3 install --upgrade cmake
-
 RUN echo "*** Downloading RESTinio ***" \
     && mkdir restinio && cd restinio \
-    && wget https://github.com/aberaud/restinio/archive/a7a10e419d9089c5b8ee63f5e3098c892f22fae4.tar.gz \
-    && ls -l && tar -xzf a7a10e419d9089c5b8ee63f5e3098c892f22fae4.tar.gz \
-    && cd restinio-a7a10e419d9089c5b8ee63f5e3098c892f22fae4/dev \
+    && wget https://github.com/aberaud/restinio/archive/2c0b6f5e5ba04d7a74e8406a3df1fd433680599d.tar.gz \
+    && ls -l && tar -xzf 2c0b6f5e5ba04d7a74e8406a3df1fd433680599d.tar.gz \
+    && cd restinio-2c0b6f5e5ba04d7a74e8406a3df1fd433680599d/dev \
     && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=OFF -DRESTINIO_SAMPLE=OFF \
              -DRESTINIO_INSTALL_SAMPLES=OFF -DRESTINIO_BENCH=OFF -DRESTINIO_INSTALL_BENCHES=OFF \
              -DRESTINIO_FIND_DEPS=ON -DRESTINIO_ALLOW_SOBJECTIZER=Off -DRESTINIO_USE_BOOST_ASIO=none . \
     && make -j8 && make install \
     && cd ../../ && rm -rf restinio*
-
-# 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-2.1.5 msgpack-2.1.5.tar.gz

docker/DockerfileLlvm

@@ -0,0 +1,6 @@
+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 -DOPENDHT_LTO=On -DOPENDHT_PROXY_SERVER=On -DOPENDHT_PROXY_CLIENT=On && make -j8 && make install \
+	&& cd ../.. && rm -rf opendht

docker/DockerfileTravis

@@ -1,6 +1,8 @@
-FROM aberaud/opendht-deps
+FROM aberaud/opendht-deps-bionic
 MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 
+RUN apt-get update && apt-get install -y python3-pip && pip3 install --upgrade cmake
+
 COPY . /root/opendht
 RUN cd /root/opendht && mkdir build && cd build \
 	&& cmake -DCMAKE_INSTALL_PREFIX=/usr -DOPENDHT_PYTHON=On -DOPENDHT_C=On -DOPENDHT_LTO=On -DOPENDHT_TESTS=ON ..  \

include/opendht/callbacks.h

@@ -58,8 +58,8 @@ struct OPENDHT_PUBLIC NodeStats {
              cached_nodes {0},
              incoming_nodes {0};
     unsigned table_depth {0};
-    unsigned cachedNodes {0};
     unsigned searches {0};
+    unsigned node_cache_size {0};
     unsigned getKnownNodes() const { return good_nodes + dubious_nodes; }
     unsigned long getNetworkSizeEstimation() const { return 8 * std::exp2(table_depth); }
     std::string toString() const;
@@ -73,25 +73,7 @@ struct OPENDHT_PUBLIC NodeStats {
     explicit NodeStats(const Json::Value& v);
 #endif
 
-    MSGPACK_DEFINE_MAP(good_nodes, dubious_nodes, cached_nodes, incoming_nodes, table_depth, searches)
-};
-
-struct OPENDHT_PUBLIC NodeMetrics {
-    size_t scheduler_size {0};
-    size_t node_cache_size {0};
-    size_t request_count {0};
-    size_t rate_limiter_size {0};
-    size_t reported_addr_num {0};
-    size_t store_size {0};
-    size_t store_values {0};
-    size_t store_quota_size {0};
-
-#ifdef OPENDHT_JSONCPP
-    /**
-     * Build a json object from a NodeStats
-     */
-    Json::Value toJson() const;
-#endif
+    MSGPACK_DEFINE_MAP(good_nodes, dubious_nodes, cached_nodes, incoming_nodes, table_depth, searches, node_cache_size)
 };
 
 struct OPENDHT_PUBLIC NodeInfo {
@@ -100,7 +82,8 @@ struct OPENDHT_PUBLIC NodeInfo {
     NodeStats ipv4 {};
     NodeStats ipv6 {};
     size_t ongoing_ops {0};
-    NodeMetrics metrics {};
+    in_port_t bound4 {0};
+    in_port_t bound6 {0};
 
 #ifdef OPENDHT_JSONCPP
     /**
@@ -137,12 +120,18 @@ struct OPENDHT_PUBLIC Config {
     /** 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 {};
 
-    /** If non-0, overrides the default global rate-limit.-1 means no limit. */
+    /** If non-0, overrides the default global rate-limit. -1 means no limit. */
     ssize_t max_req_per_sec {0};
 
     /** If non-0, overrides the default per-IP address rate-limit. -1 means no limit. */
     ssize_t max_peer_req_per_sec {0};
 
+    /* If non-0, overrides the default maximum number of searches. -1 means no limit.  */
+    ssize_t max_searches {0};
+
+    /* If non-0, overrides the default maximum store size. -1 means no limit.  */
+    ssize_t max_store_size {0};
+
     /** 
      * Use appropriate bahavior for a public IP, stable node:
      *   - No connectivity change triggered when a search fails

include/opendht/crypto.h

@@ -1,6 +1,7 @@
 /*
  *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *           Vsevolod Ivanov <vsevolod.ivanov@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
@@ -26,6 +27,7 @@ extern "C" {
 #include <gnutls/gnutls.h>
 #include <gnutls/abstract.h>
 #include <gnutls/x509.h>
+#include <gnutls/ocsp.h>
 }
 
 #include <vector>
@@ -196,7 +198,6 @@ private:
     //friend dht::crypto::Identity dht::crypto::generateIdentity(const std::string&, dht::crypto::Identity, unsigned key_length);
 };
 
-
 class OPENDHT_PUBLIC RevocationList
 {
     using clock = std::chrono::system_clock;
@@ -309,6 +310,36 @@ private:
     gnutls_x509_crq_t request {nullptr};
 };
 
+class OPENDHT_PUBLIC OcspResponse
+{
+public:
+    OcspResponse(const uint8_t* dat_ptr, size_t dat_size);
+    ~OcspResponse();
+
+    Blob pack() const;
+    /*
+     * Get OCSP Response in readable format.
+     */
+    std::string toString(const bool compact = true) const;
+
+    /*
+     * Get OCSP response certificate status.
+     * Return certificate status.
+     * http://www.gnu.org/software/gnutls/reference/gnutls-ocsp.html#gnutls-ocsp-cert-status-t
+     */
+    gnutls_ocsp_cert_status_t getCertificateStatus() const;
+
+    /*
+     * Verify OCSP response.
+     * Return OCSP verify reason.
+     * http://www.gnu.org/software/gnutls/reference/gnutls-ocsp.html#gnutls-ocsp-verify-reason-t
+     */
+    gnutls_ocsp_verify_reason_t verifyDirect(const Certificate& crt, const Blob& nonce);
+
+private:
+    gnutls_ocsp_resp_t response;
+};
+
 struct OPENDHT_PUBLIC Certificate {
     Certificate() noexcept {}
 
@@ -434,6 +465,8 @@ struct OPENDHT_PUBLIC Certificate {
     /** Same as getPublicKey().getLongId() */
     PkId getLongId() const;
 
+    Blob getSerialNumber() const;
+
     /** Read certificate Common Name (CN) */
     std::string getName() const;
 
@@ -527,8 +560,16 @@ struct OPENDHT_PUBLIC Certificate {
 
     gnutls_digest_algorithm_t getPreferredDigest() const;
 
+    /*
+     * Generate OCSP request.
+     * Return GnuTLS error code.
+     * https://www.gnutls.org/manual/html_node/Error-codes.html
+     */
+    std::pair<Blob,Blob> generateOcspRequest(gnutls_x509_crt_t& issuer);
+
     gnutls_x509_crt_t cert {nullptr};
     std::shared_ptr<Certificate> issuer {};
+    std::shared_ptr<OcspResponse> ocspResponse;
 private:
     Certificate(const Certificate&) = delete;
     Certificate& operator=(const Certificate&) = delete;

include/opendht/dht.h

@@ -80,10 +80,14 @@ public:
      */
     inline const InfoHash& getNodeId() const override { return myid; }
 
+    NodeStatus updateStatus(sa_family_t af) override;
+
     /**
      * Get the current status of the node for the given family.
      */
-    NodeStatus getStatus(sa_family_t af) const override;
+    NodeStatus getStatus(sa_family_t af) const override {
+        return dht(af).status;
+    }
 
     NodeStatus getStatus() const override {
         return std::max(getStatus(AF_INET), getStatus(AF_INET6));
@@ -111,6 +115,15 @@ public:
         return types.getType(type_id);
     }
 
+    void addBootstrap(const std::string& host, const std::string& service) override {
+        bootstrap_nodes.emplace_back(host, service);
+        onDisconnected();
+    }
+
+    void clearBootstrap() override {
+        bootstrap_nodes.clear();
+    }
+
     /**
      * Insert a node in the main routing table.
      * The node is not pinged, so this should be
@@ -273,7 +286,6 @@ public:
     void loadState(const std::string& path);
 
     NodeStats getNodesStats(sa_family_t af) const override;
-    NodeMetrics getNodeMetrics() const override;
 
     std::string getStorageLog() const override;
     std::string getStorageLog(const InfoHash&) const override;
@@ -331,10 +343,10 @@ private:
     static constexpr unsigned LISTEN_NODES {4};
 
     /* The maximum number of hashes we're willing to track. */
-    static constexpr unsigned MAX_HASHES {64 * 1024};
+    static constexpr unsigned MAX_HASHES {1024 * 1024};
 
     /* The maximum number of searches we keep data about. */
-    static constexpr unsigned MAX_SEARCHES {64 * 1024};
+    static constexpr unsigned MAX_SEARCHES {1024 * 1024};
 
     static constexpr std::chrono::minutes MAX_STORAGE_MAINTENANCE_EXPIRE_TIME {10};
 
@@ -359,6 +371,8 @@ private:
     Dht(const Dht&) = delete;
     Dht& operator=(const Dht&) = delete;
 
+    std::mt19937_64 rd {crypto::getSeededRandomEngine<std::mt19937_64>()};
+
     InfoHash myid {};
 
     uint64_t secret {};
@@ -367,27 +381,39 @@ private:
     // registred types
     TypeStore types;
 
-    // the stuff
-    RoutingTable buckets4 {};
-    RoutingTable buckets6 {};
+    using SearchMap = std::map<InfoHash, Sp<Search>>;
+    struct Kad {
+        RoutingTable buckets {};
+        SearchMap searches {};
+        unsigned pending_pings {0};
+        NodeStatus status;
+
+        NodeStatus getStatus(time_point now) const;
+        NodeStats getNodesStats(time_point now, const InfoHash& myid) const;
+    };
+
+    Kad dht4 {};
+    Kad dht6 {};
+
+    std::vector<std::pair<std::string,std::string>> bootstrap_nodes {};
+    std::chrono::steady_clock::duration bootstrap_period {std::chrono::seconds(10)};
+    Sp<Scheduler::Job> bootstrapJob {};
 
     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_keys {MAX_HASHES};
     size_t max_store_size {DEFAULT_STORAGE_LIMIT};
 
-    using SearchMap = std::map<InfoHash, Sp<Search>>;
-    SearchMap searches4 {};
-    SearchMap searches6 {};
-    uint16_t search_id {0};
+    size_t max_searches {MAX_SEARCHES};
+    size_t search_id {0};
 
     // map a global listen token to IPv4, IPv6 specific listen tokens.
     // 0 is the invalid token.
     std::map<size_t, std::tuple<size_t, size_t, size_t>> listeners {};
     size_t listener_token {1};
 
-    std::mt19937_64 rd {crypto::getSeededRandomEngine<std::mt19937_64>()};
 
     // timing
     Scheduler scheduler;
@@ -395,9 +421,6 @@ private:
     Sp<Scheduler::Job> nextStorageMaintenance {};
 
     net::NetworkEngine network_engine;
-    unsigned pending_pings4 {0};
-    unsigned pending_pings6 {0};
-
     using ReportedAddr = std::pair<unsigned, SockAddr>;
     std::vector<ReportedAddr> reported_addr;
 
@@ -423,7 +446,7 @@ private:
     void reportedAddr(const SockAddr&);
 
     // Storage
-    void storageAddListener(const InfoHash& id, const Sp<Node>& node, size_t tid, Query&& = {});
+    void storageAddListener(const InfoHash& id, const Sp<Node>& node, size_t tid, Query&& = {}, int version = 0);
     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);
@@ -443,8 +466,10 @@ private:
     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; }
+    Kad& dht(sa_family_t af) { return af == AF_INET ? dht4 : dht6; }
+    const Kad& dht(sa_family_t af) const { return af == AF_INET ? dht4 : dht6; }
+    RoutingTable& buckets(sa_family_t af) { return dht(af).buckets; }
+    const RoutingTable& buckets(sa_family_t af) const { return dht(af).buckets; }
     Bucket* findBucket(const InfoHash& id, sa_family_t af) {
         auto& b = buckets(af);
         auto it = b.findBucket(id);
@@ -466,8 +491,8 @@ private:
 
     // Searches
 
-    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; }
+    inline SearchMap& searches(sa_family_t af) { return dht(af).searches; }
+    inline const SearchMap& searches(sa_family_t af) const { return dht(af).searches; }
 
     /**
      * Low-level method that will perform a search on the DHT for the specified
@@ -490,6 +515,7 @@ private:
 
     void confirmNodes();
     void expire();
+    void onDisconnected();
 
     /**
      * Generic function to execute when a 'get' request has completed.
@@ -575,7 +601,8 @@ private:
             const InfoHash& hash,
             const Blob& token,
             size_t socket_id,
-            const Query& query);
+            const Query& query,
+            int version = 0);
     void onListenDone(const Sp<Node>& status,
             net::RequestAnswer& a,
             Sp<Search>& sr);

include/opendht/dht_interface.h

@@ -42,6 +42,7 @@ public:
     /**
      * Get the current status of the node for the given family.
      */
+    virtual NodeStatus updateStatus(sa_family_t af) { return getStatus(af); };
     virtual NodeStatus getStatus(sa_family_t af) const = 0;
     virtual NodeStatus getStatus() const = 0;
 
@@ -69,6 +70,9 @@ public:
 
     virtual const ValueType& getType(ValueType::Id type_id) const = 0;
 
+    virtual void addBootstrap(const std::string& /*host*/, const std::string& /*service*/) {};
+    virtual void clearBootstrap() {};
+
     /**
      * Insert a node in the main routing table.
      * The node is not pinged, so this should be
@@ -194,7 +198,6 @@ public:
     virtual void importValues(const std::vector<ValuesExport>&) = 0;
 
     virtual NodeStats getNodesStats(sa_family_t af) const = 0;
-    virtual NodeMetrics getNodeMetrics() const { return {}; }
 
     virtual std::string getStorageLog() const = 0;
     virtual std::string getStorageLog(const InfoHash&) const = 0;

include/opendht/dht_proxy_client.h

@@ -264,11 +264,10 @@ public:
     std::vector<unsigned> getNodeMessageStats(bool) override { return {}; }
     void setStorageLimit(size_t) override {}
     void connectivityChanged(sa_family_t) override {
-        restartListeners();
+        getProxyInfos();
     }
     void connectivityChanged() override {
         getProxyInfos();
-        restartListeners();
         loopSignal_();
     }
 
@@ -385,7 +384,7 @@ private:
     /**
      * Relaunch LISTEN requests if the client disconnect/reconnect.
      */
-    void restartListeners();
+    void restartListeners(const asio::error_code &ec);
 
     /**
      * Refresh a listen via a token

include/opendht/dht_proxy_server.h

@@ -36,6 +36,15 @@
 #include <memory>
 #include <mutex>
 
+namespace dht {
+enum class PushType {
+    None = 0,
+    Android,
+    iOS
+};
+}
+MSGPACK_ADD_ENUM(dht::PushType)
+
 namespace http {
 class Request;
 struct ListenerSession;
@@ -52,6 +61,13 @@ class DhtRunner;
 using RestRouter = restinio::router::express_router_t<>;
 using RequestStatus = restinio::request_handling_status_t;
 
+struct ProxyServerConfig {
+    in_port_t port {8000};
+    std::string pushServer {};
+    std::string persistStatePath {};
+    dht::crypto::Identity identity {};
+};
+
 /**
  * Describes the REST API
  */
@@ -66,10 +82,9 @@ public:
      * @note if the server fails to start (if port is already used or reserved),
      * it will fails silently
      */
-    DhtProxyServer(
-       dht::crypto::Identity identity,
-       std::shared_ptr<DhtRunner> dht, in_port_t port = 8000, const std::string& pushServer = "",
-       std::shared_ptr<dht::Logger> logger = {});
+    DhtProxyServer(const std::shared_ptr<DhtRunner>& dht,
+        const ProxyServerConfig& config = {},
+        const std::shared_ptr<dht::Logger>& logger = {});
 
     virtual ~DhtProxyServer();
 
@@ -83,8 +98,10 @@ public:
     struct ServerStats {
         /** Current number of listen operations */
         size_t listenCount {0};
-        /** Current number of permanent put operations */
+        /** Current number of permanent put operations (hash used) */
         size_t putCount {0};
+        /** Current number of permanent put values */
+        size_t totalPermanentPuts {0};
         /** Current number of push tokens with at least one listen operation */
         size_t pushListenersCount {0};
         /** Average requests per second */
@@ -114,6 +131,7 @@ public:
             Json::Value result;
             result["listenCount"] = static_cast<Json::UInt64>(listenCount);
             result["putCount"] = static_cast<Json::UInt64>(putCount);
+            result["totalPermanentPuts"] = static_cast<Json::UInt64>(totalPermanentPuts);
             result["pushListenersCount"] = static_cast<Json::UInt64>(pushListenersCount);
             result["requestRate"] = requestRate;
             if (nodeInfo)
@@ -282,17 +300,17 @@ private:
      * @param key of the device
      * @param json, the content to send
      */
-    void sendPushNotification(const std::string& key, Json::Value&& json, bool isAndroid, bool highPriority);
+    void sendPushNotification(const std::string& key, Json::Value&& json, PushType type, bool highPriority);
 
     /**
      * Send push notification with an expire timeout.
      * @param ec
      * @param pushToken
      * @param json
-     * @param isAndroid
+     * @param type
      */
     void handleNotifyPushListenExpire(const asio::error_code &ec, const std::string pushToken,
-                                      std::function<Json::Value()> json, const bool isAndroid);
+                                      std::function<Json::Value()> json, PushType type);
 
     /**
      * Remove a push listener between a client and a hash
@@ -309,6 +327,12 @@ private:
     void handlePrintStats(const asio::error_code &ec);
     void updateStats();
 
+    template <typename Os>
+    void saveState(Os& stream);
+
+    template <typename Is>
+    void loadState(Is& is, size_t size);
+
     using clock = std::chrono::steady_clock;
     using time_point = clock::time_point;
 
@@ -316,6 +340,9 @@ private:
     std::shared_ptr<DhtRunner> dht_;
     Json::StreamWriterBuilder jsonBuilder_;
     Json::CharReaderBuilder jsonReaderBuilder_;
+    std::mt19937_64 rd {crypto::getSeededRandomEngine<std::mt19937_64>()};
+
+    std::string persistPath_;
 
     // http server
     std::thread serverThread_;
@@ -344,6 +371,7 @@ private:
     struct PushSessionContext {
         std::mutex lock;
         std::string sessionId;
+        PushSessionContext(const std::string& id) : sessionId(id) {}
     };
     struct PermanentPut {
         time_point expiration;
@@ -353,9 +381,32 @@ private:
         std::unique_ptr<asio::steady_timer> expireTimer;
         std::unique_ptr<asio::steady_timer> expireNotifyTimer;
         Sp<Value> value;
+        PushType type;
+
+        template <typename Packer>
+        void msgpack_pack(Packer& p) const
+        {
+            p.pack_map(2 + (sessionCtx ? 1 : 0) + (clientId.empty() ? 0 : 1) + (type == PushType::None ? 0 : 2));
+            p.pack("value"); p.pack(value);
+            p.pack("exp"); p.pack(to_time_t(expiration));
+            if (not clientId.empty()) {
+                p.pack("cid"); p.pack(clientId);
+            }
+            if (sessionCtx) {
+                std::lock_guard<std::mutex> l(sessionCtx->lock);
+                p.pack("sid"); p.pack(sessionCtx->sessionId);
+            }
+            if (type != PushType::None) {
+                p.pack("t"); p.pack(type);
+                p.pack("token"); p.pack(pushToken);
+            }
+        }
+
+        void msgpack_unpack(const msgpack::object& o);
     };
     struct SearchPuts {
         std::map<dht::Value::Id, PermanentPut> puts;
+        MSGPACK_DEFINE_ARRAY(puts)
     };
     std::mutex lockSearchPuts_;
     std::map<InfoHash, SearchPuts> puts_;
@@ -367,14 +418,32 @@ private:
 
 #ifdef OPENDHT_PUSH_NOTIFICATIONS
     struct Listener {
+        time_point expiration;
         std::string clientId;
         std::shared_ptr<PushSessionContext> sessionCtx;
         std::future<size_t> internalToken;
         std::unique_ptr<asio::steady_timer> expireTimer;
         std::unique_ptr<asio::steady_timer> expireNotifyTimer;
+        PushType type;
+
+        template <typename Packer>
+        void msgpack_pack(Packer& p) const
+        {
+            p.pack_map(sessionCtx ? 4 : 3);
+            p.pack("cid"); p.pack(clientId);
+            p.pack("exp"); p.pack(to_time_t(expiration));
+            if (sessionCtx) {
+                std::lock_guard<std::mutex> l(sessionCtx->lock);
+                p.pack("sid"); p.pack(sessionCtx->sessionId);
+            }
+            p.pack("t"); p.pack(type);
+        }
+
+        void msgpack_unpack(const msgpack::object& o);
     };
     struct PushListener {
         std::map<InfoHash, std::vector<Listener>> listeners;
+        MSGPACK_DEFINE_ARRAY(listeners)
     };
     std::mutex lockPushListeners_;
     std::map<std::string, PushListener> pushListeners_;

include/opendht/dhtrunner.h

@@ -389,7 +389,7 @@ 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& local4, const SockAddr& local6, const Config& config, Context&& context = {});
+    void run(SockAddr& local4, SockAddr& local6, const Config& config, Context&& context = {});
 
     /**
      * Same as @run(sockaddr_in, sockaddr_in6, Identity, bool, StatusCallback), but with string IP addresses and service (port).
@@ -459,14 +459,6 @@ private:
         Stopping
     };
 
-    /**
-     * 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();
-
     time_point loop_();
 
     NodeStatus getStatus() const {
@@ -513,15 +505,6 @@ private:
     net::PacketList rcv {};
     decltype(rcv) rcv_free {};
 
-    /** 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 {};
-    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 {};

include/opendht/http.h

@@ -72,15 +72,17 @@ using socket_t = asio::ip::tcp::socket;
 class OPENDHT_PUBLIC Url
 {
 public:
-    Url(){};
+    Url() = default;
     Url(const std::string& url);
     std::string url;
     std::string protocol {"http"};
     std::string host;
-    std::string service {"80"};
-    std::string target {"/"};
+    std::string service;
+    std::string target;
     std::string query;
     std::string fragment;
+
+    std::string toString() const;
 };
 
 class OPENDHT_PUBLIC Connection : public std::enable_shared_from_this<Connection>
@@ -95,7 +97,7 @@ public:
     bool is_open() const;
     bool is_ssl() const;
 
-    void set_ssl_verification(const asio::ip::tcp::endpoint& endpoint, const asio::ssl::verify_mode verify_mode);
+    void set_ssl_verification(const std::string& hostname, const asio::ssl::verify_mode verify_mode);
 
     asio::streambuf& input();
     std::istream& data() { return istream_; }
@@ -226,12 +228,15 @@ public:
     using OnStatusCb = std::function<void(unsigned status_code)>;
     using OnDataCb = std::function<void(const char* at, size_t length)>;
     using OnStateChangeCb = std::function<void(State state, const Response& response)>;
-    using OnJsonCb = std::function<void(Json::Value value, unsigned status_code)>;
+    using OnJsonCb = std::function<void(Json::Value value, const Response& response)>;
     using OnDoneCb = std::function<void(const Response& response)>;
 
     // resolves implicitly
     Request(asio::io_context& ctx, const std::string& url, const Json::Value& json, OnJsonCb jsoncb,
             std::shared_ptr<dht::Logger> logger = {});
+    Request(asio::io_context& ctx, const std::string& url, OnJsonCb jsoncb,
+            std::shared_ptr<dht::Logger> logger = {});
+
     Request(asio::io_context& ctx, const std::string& url, std::shared_ptr<dht::Logger> logger = {});
     Request(asio::io_context& ctx, const std::string& host, const std::string& service,
             const bool ssl = false, std::shared_ptr<dht::Logger> logger = {});
@@ -285,10 +290,14 @@ public:
 
     void send();
 
+    /** Send and block for response */
+    const Response& await();
+
     /**
      * User action to cancel the Request and call the completion callbacks.
      */
     void cancel();
+    void terminate(const asio::error_code& ec);
 
 private:
     using OnCompleteCb = std::function<void()>;
@@ -301,6 +310,8 @@ private:
         OnStateChangeCb on_state_change;
     };
 
+    static std::string getRelativePath(const Url& origin, const std::string& path);
+
     void notify_state_change(State state);
 
     void build();
@@ -313,8 +324,6 @@ private:
 
     void connect(std::vector<asio::ip::tcp::endpoint>&& endpoints, HandlerCb cb = {});
 
-    void terminate(const asio::error_code& ec);
-
     void post();
 
     void handle_request(const asio::error_code& ec);

include/opendht/infohash.h

@@ -237,6 +237,9 @@ public:
 
     static Hash getRandom();
 
+    template <typename Rd>
+    static Hash getRandom(Rd&);
+
     template <size_t M>
     OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const Hash<M>& h);
 
@@ -324,6 +327,19 @@ Hash<N>::getRandom()
     return h;
 }
 
+template <size_t N>
+template <typename Rd>
+Hash<N>
+Hash<N>::getRandom(Rd& rdev)
+{
+    Hash h;
+    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++) {

include/opendht/log_enable.h

@@ -82,13 +82,13 @@ private:
 };
 
 struct Logger {
-    LogMethod DBG = {};
-    LogMethod WARN = {};
     LogMethod ERR = {};
+    LogMethod WARN = {};
+    LogMethod DBG = {};
 
     Logger() = default;
     Logger(LogMethod&& err, LogMethod&& warn, LogMethod&& dbg)
-        : DBG(std::move(dbg)), WARN(std::move(warn)), ERR(std::move(err)) {}
+        : ERR(std::move(err)), WARN(std::move(warn)), DBG(std::move(dbg)) {}
     void setFilter(const InfoHash& f) {
         filter_ = f;
         filterEnable_ = static_cast<bool>(filter_);

include/opendht/network_engine.h

@@ -180,7 +180,8 @@ private:
             const InfoHash&,
             const Blob&,
             Tid,
-            const Query&)> onListen {};
+            const Query&,
+            int)> onListen {};
     /**
      * Called on announce request.
      *
@@ -210,6 +211,7 @@ private:
 
 public:
     using RequestCb = std::function<void(const Request&, RequestAnswer&&)>;
+    using RequestErrorCb = std::function<bool(const Request&, DhtProtocolException&&)>;
     using RequestExpiredCb = std::function<void(const Request&, bool)>;
 
     NetworkEngine(const Sp<Logger>& log, std::mt19937_64& rd, Scheduler& scheduler, std::unique_ptr<DatagramSocket>&& sock);
@@ -237,9 +239,10 @@ public:
     void clear();
 
     /**
-     * Sends values (with closest nodes) to a listenner.
+     * Sends values (with closest nodes) to a listener.
      *
-     * @param sa          The address of the listenner.
+     * @deprecated
+     * @param sa          The address of the listener.
      * @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.
@@ -248,13 +251,14 @@ public:
      * @param nodes       The ipv4 closest nodes.
      * @param nodes6      The ipv6 closest nodes.
      * @param values      The values to send.
+     * @param version     If version = 1, a request will be used to answer to the listener
      */
     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);
+            std::vector<Sp<Value>>&& values, const Query& q, int version);
 
-    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);
+    void tellListenerRefreshed(Sp<Node> n, Tid socket_id, const InfoHash& hash, const Blob& ntoken, const std::vector<Value::Id>& values, int version);
+    void tellListenerExpired(Sp<Node> n, Tid socket_id, const InfoHash& hash, const Blob& ntoken, const std::vector<Value::Id>& values, int version);
 
     bool isRunning(sa_family_t af) const;
     inline want_t want () const { return dht_socket->hasIPv4() and dht_socket->hasIPv6() ? (WANT4 | WANT6) : -1; }
@@ -276,7 +280,7 @@ public:
      */
     Sp<Request>
     sendPing(Sp<Node> n, RequestCb&& on_done, RequestExpiredCb&& on_expired);
-    
+
     /**
      * Send a "ping" request to a given node.
      *
@@ -293,7 +297,7 @@ public:
                 std::forward<RequestCb>(on_done),
                 std::forward<RequestExpiredCb>(on_expired));
     }
-    
+
     /**
      * Send a "find node" request to a given node.
      *
@@ -358,10 +362,9 @@ public:
                            const InfoHash& hash,
                            const Query& query,
                            const Blob& token,
-                           Sp<Request> previous,
+                           Tid socketId,
                            RequestCb&& on_done,
-                           RequestExpiredCb&& on_expired,
-                           SocketCb&& socket_cb);
+                           RequestExpiredCb&& on_expired);
     /**
      * Send a "announce" request to a given node.
      *
@@ -400,7 +403,26 @@ public:
                                  const Value::Id& vid,
                                  const Blob& token,
                                  RequestCb&& on_done,
+                                 RequestErrorCb&& on_error,
                                  RequestExpiredCb&& on_expired);
+    /**
+     * Send a "update" request to a given node. Used for Listen operations
+     *
+     * @param n           The node.
+     * @param hash        The target hash.
+     * @param values      The values.
+     * @param created     Time id.
+     * @param token       A security token.
+     * @param sid         The socket id.
+     *
+     * @return the request with information concerning its success.
+     */
+    Sp<Request> sendUpdateValues(Sp<Node> n,
+                                 const InfoHash& infohash,
+                                 const std::vector<Sp<Value>>& values,
+                                 time_point created,
+                                 const Blob& token,
+                                 const size_t& sid);
 
     /**
      * Parses a message and calls appropriate callbacks.
@@ -413,8 +435,8 @@ public:
      */
     void processMessage(const uint8_t *buf, size_t buflen, SockAddr addr);
 
-    Sp<Node> insertNode(const InfoHash& myid, const SockAddr& addr) {
-        auto n = cache.getNode(myid, addr, scheduler.time(), 0);
+    Sp<Node> insertNode(const InfoHash& id, const SockAddr& addr) {
+        auto n = cache.getNode(id, addr, scheduler.time(), 0);
         onNewNode(n, 0);
         return n;
     }
@@ -490,19 +512,20 @@ private:
     void sendRequest(const Sp<Request>& request);
 
     struct MessageStats {
-        unsigned ping    {0};
-        unsigned find    {0};
-        unsigned get     {0};
-        unsigned put     {0};
-        unsigned listen  {0};
-        unsigned refresh {0};
+        unsigned ping         {0};
+        unsigned find         {0};
+        unsigned get          {0};
+        unsigned put          {0};
+        unsigned listen       {0};
+        unsigned refresh      {0};
+        unsigned updateValue  {0};
     };
 
 
     // basic wrapper for socket sendto function
     int send(const SockAddr& addr, const char *buf, size_t len, bool confirmed = false);
 
-    void sendValueParts(const TransId& tid, const std::vector<Blob>& svals, const SockAddr& addr);
+    void sendValueParts(Tid tid, const std::vector<Blob>& svals, const SockAddr& addr);
     std::vector<Blob> packValueHeader(msgpack::sbuffer&, const std::vector<Sp<Value>>&);
     void maintainRxBuffer(Tid tid);
 

include/opendht/network_utils.h

@@ -61,6 +61,9 @@ using PacketList = std::list<ReceivedPacket>;
 
 class OPENDHT_PUBLIC DatagramSocket {
 public:
+    /** A function that takes a list of new received packets and
+     *  optionally returns consumed packets for recycling.
+     **/
     using OnReceive = std::function<PacketList(PacketList&& packets)>;
     virtual ~DatagramSocket() {};
 
@@ -85,6 +88,11 @@ public:
 
     virtual const SockAddr& getBoundRef(sa_family_t family = AF_UNSPEC) const = 0;
 
+    /** Virtual resolver mothod allows to implement custom resolver */
+    virtual std::vector<SockAddr> resolve(const std::string& host, const std::string& service = {}) {
+        return SockAddr::resolve(host, service);
+    }
+
     virtual void stop() = 0;
 protected:
 

include/opendht/rng.h

@@ -21,6 +21,8 @@
 #include <random>
 #include <algorithm>
 #include <functional>
+#include <thread>
+#include <stdexcept>
 
 namespace dht {
 namespace crypto {
@@ -111,11 +113,18 @@ using random_device = std::random_device;
 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;
+    for (unsigned i=0; i<256; i++) {
+        try {
+            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;
+        } catch (...) {
+            std::this_thread::sleep_for(std::chrono::milliseconds(1));
+        }
+    }
+    throw std::runtime_error("Can't seed random engine");
 }
 
 }} // dht::crypto

include/opendht/scheduler.h

@@ -115,8 +115,6 @@ public:
     inline time_point syncTime() { return (now = clock::now()); }
     inline void syncTime(const time_point& n) { now = n; }
 
-    inline size_t size() const { return timers.size(); }
-
 private:
     time_point now {clock::now()};
     std::multimap<time_point, Sp<Job>> timers {}; /* the jobs ordered by time */

include/opendht/securedht.h

@@ -180,9 +180,6 @@ public:
     NodeStats getNodesStats(sa_family_t af) const override {
         return dht_->getNodesStats(af);
     }
-    NodeMetrics getNodeMetrics() const override {
-        return dht_->getNodeMetrics();
-    }
     std::vector<unsigned> getNodeMessageStats(bool in = false) override {
         return dht_->getNodeMessageStats(in);
     }
@@ -204,6 +201,9 @@ public:
     time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen, const time_point& now) override {
         return dht_->periodic(buf, buflen, from, fromlen, now);
     }
+    NodeStatus updateStatus(sa_family_t af) override  {
+        return dht_->updateStatus(af);
+    }
     NodeStatus getStatus(sa_family_t af) const override {
         return dht_->getStatus(af);
     }
@@ -219,6 +219,12 @@ public:
     const ValueType& getType(ValueType::Id type_id) const override {
         return dht_->getType(type_id);
     }
+    void addBootstrap(const std::string& host, const std::string& service) override {
+        dht_->addBootstrap(host, service);
+    }
+    void clearBootstrap() override {
+        dht_->clearBootstrap();
+    }
     void insertNode(const InfoHash& id, const SockAddr& sa) override {
         dht_->insertNode(id, sa);
     }

include/opendht/utils.h

@@ -105,8 +105,7 @@ static std::string
 print_duration(DT d) {
     if (d < std::chrono::seconds(0)) {
         return "-" + print_duration(-d);
-    }
-    if (d < std::chrono::milliseconds(1)) {
+    } else if (d < std::chrono::milliseconds(1)) {
         return to_str(std::chrono::duration_cast<std::chrono::duration<double, std::micro>>(d).count()) +  " us";
     } else if (d < std::chrono::seconds(1)) {
         return to_str(std::chrono::duration_cast<std::chrono::duration<double, std::milli>>(d).count()) +  " ms";
@@ -174,7 +173,13 @@ unpackMsg(Blob b) {
 
 msgpack::unpacked unpackMsg(Blob b);
 
-msgpack::object* findMapValue(const msgpack::object& map, const char* key);
-msgpack::object* findMapValue(const msgpack::object& map, const std::string& key);
+msgpack::object* findMapValue(const msgpack::object& map, const char* key, size_t length);
+
+inline msgpack::object* findMapValue(const msgpack::object& map, const char* key) {
+    return findMapValue(map, key, strlen(key));
+}
+inline msgpack::object* findMapValue(const msgpack::object& map, const std::string& key) {
+    return findMapValue(map, key.c_str(), key.size());
+}
 
 } // namespace dht

opendht.pc.in

@@ -3,9 +3,9 @@ exec_prefix=@exec_prefix@
 libdir=@libdir@
 includedir=@includedir@
 Name: OpenDHT
-Description: C++ Distributed Hash Table library
+Description: C++14 Distributed Hash Table library
 Version: @VERSION@
 Libs: -L${libdir} -lopendht
-Libs.private: -lpthread
-Requires.private: gnutls >= 3.1@argon2_lib@
+Libs.private: @http_parser_lib@ -pthread
+Requires.private: gnutls >= 3.3, nettle >= 2.4@argon2_lib@@jsoncpp_lib@@openssl_lib@
 Cflags: -I${includedir}

python/tools/scanner.py

@@ -21,6 +21,7 @@ from math import cos, sin, pi
 import urllib3
 import gzip
 import queue
+from geoip import geolite2
 
 sys.path.append('..')
 from opendht import *
@@ -55,7 +56,7 @@ plt.ion()
 plt.figaspect(2.)
 
 fig, axes = plt.subplots(2, 1)
-fig.set_size_inches(8,16,forward=True)
+#fig.set_size_inches(8,16,forward=True)
 fig.tight_layout()
 fig.canvas.set_window_title('OpenDHT scanner')
 
@@ -90,27 +91,12 @@ def exitcb(arg):
     run = False
 exitbtn.on_clicked(exitcb)
 
-def check_dl(fname, url):
-    if os.path.isfile(fname):
-        return
-    print('downloading', 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)
-
-check_dl("GeoLiteCity.dat", "http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz")
-check_dl("GeoLiteCityv6.dat", "http://geolite.maxmind.com/download/geoip/database/GeoLiteCityv6-beta/GeoLiteCityv6.dat.gz")
-
-gi = GeoIP.open("GeoLiteCity.dat", GeoIP.GEOIP_INDEX_CACHE | GeoIP.GEOIP_CHECK_CACHE)
-gi6 = GeoIP.open("GeoLiteCityv6.dat", GeoIP.GEOIP_INDEX_CACHE | GeoIP.GEOIP_CHECK_CACHE)
-
 def gcb(v):
     return True
 
 r = DhtRunner()
 r.run(port=4112)
-r.bootstrap("bootstrap.ring.cx", "4222")
+r.bootstrap("bootstrap.jami.net", "4222")
 
 plt.pause(1)
 
@@ -143,9 +129,9 @@ def nextstep(cur_h, cur_depth, ok, nodes):
         depth = min(8, commonBits+6)
         if cur_depth < depth:
             for b in range(cur_depth, depth):
-                new_h = InfoHash(cur_h.toString());
-                new_h.setBit(b, 1);
-                step(new_h, b+1);
+                new_h = InfoHash(cur_h.toString())
+                new_h.setBit(b, 1)
+                step(new_h, b+1)
     else:
         print("step done with no nodes", ok, cur_h.toString().decode())
     done -= 1
@@ -186,23 +172,22 @@ def appendNewNode(n):
         if addr in nodes_ip6s:
             nodes_ip6s[addr][1] += 1
         else:
-            georecord = gi6.record_by_name_v6(addr)
+            georecord = geolite2.lookup(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)
+            georecord = geolite2.lookup(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']))))
-
+    lons.append(res.location[1])
+    lats.append(res.location[0])
+    cities.append(res.city if res.city else (str(int(res.location[0]))+'-'+str(int(res.location[1]))))
 
 def restart(arg):
     global collection, all_lines, all_nodes, points, done, nodes_ip4s, nodes_ip6s, lats, lons, cities, xys, colors

src/callbacks.cpp

@@ -94,6 +94,7 @@ NodeStats::toString() const
 {
     std::stringstream ss;
     ss << "Known nodes: " << good_nodes << " good, " << dubious_nodes << " dubious, " << incoming_nodes << " incoming." << std::endl;
+    ss << searches << " searches, " << node_cache_size << " total cached nodes" << std::endl;
     if (table_depth > 1) {
         ss << "Routing table depth: " << table_depth << std::endl;
         ss << "Network size estimation: " << getNetworkSizeEstimation() << " nodes" << std::endl;
@@ -144,7 +145,6 @@ NodeInfo::toJson() const
     val["ipv4"] = ipv4.toJson();
     val["ipv6"] = ipv6.toJson();
     val["ops"] = Json::Value::LargestUInt(ongoing_ops);
-    val["metrics"] = metrics.toJson();
     return val;
 }
 
@@ -158,21 +158,6 @@ NodeInfo::NodeInfo(const Json::Value& v)
     ongoing_ops = v["ops"].asLargestUInt();
 }
 
-Json::Value
-NodeMetrics::toJson() const
-{
-    Json::Value val;
-    val["scheduler_size"] = Json::Value::LargestUInt(scheduler_size);
-    val["node_cache_size"] = Json::Value::LargestUInt(node_cache_size);
-    val["request_count"] = Json::Value::LargestUInt(request_count);
-    val["rate_limiter_size"] = Json::Value::LargestUInt(rate_limiter_size);
-    val["reported_addr_num"] = Json::Value::LargestUInt(reported_addr_num);
-    val["store_size"] = Json::Value::LargestUInt(store_size);
-    val["store_values"] = Json::Value::LargestUInt(store_values);
-    val["store_quota_size"] = Json::Value::LargestUInt(store_quota_size);
-    return val;
-}
-
 #endif
 
 

src/compat/os_cert.cpp

@@ -0,0 +1,221 @@
+/*
+ *  Copyright (C) 2020 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, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "os_cert.h"
+
+#include "log_enable.h"
+
+#ifdef _WIN32
+#include <windows.h>
+#include <wincrypt.h>
+#pragma comment(lib, "crypt32.lib")
+#include <openssl/ssl.h>
+#undef X509_NAME
+#undef OCSP_REQUEST
+#undef OCSP_RESPONSE
+#endif /*WIN32*/
+
+#ifdef __APPLE__
+#include <Security/Security.h>
+#endif /*__APPLE__*/
+
+#ifdef _WIN32
+#define GENTIME_LENGTH 15
+#define UTCTIME_LENGTH 13
+#define ATOI2(ar)      ((ar) += 2, ((ar)[-2] - '0') * 10 + ((ar)[-1] - '0'))
+// Taken from libressl/src/crypto/asn1/a_time_tm.c
+/*
+ * Parse an RFC 5280 format ASN.1 time string.
+ *
+ * mode must be:
+ * 0 if we expect to parse a time as specified in RFC 5280 for an X509 object.
+ * V_ASN1_UTCTIME if we wish to parse an RFC5280 format UTC time.
+ * V_ASN1_GENERALIZEDTIME if we wish to parse an RFC5280 format Generalized time.
+ *
+ * Returns:
+ * -1 if the string was invalid.
+ * V_ASN1_UTCTIME if the string validated as a UTC time string.
+ * V_ASN1_GENERALIZEDTIME if the string validated as a Generalized time string.
+ *
+ * Fills in *tm with the corresponding time if tm is non NULL.
+ */
+int
+ASN1_time_parse(const char* bytes, size_t len, struct tm* tm, int mode)
+{
+    size_t i;
+    int type = 0;
+    struct tm ltm;
+    struct tm* lt;
+    const char* p;
+
+    if (bytes == NULL)
+        return (-1);
+
+    /* Constrain to valid lengths. */
+    if (len != UTCTIME_LENGTH && len != GENTIME_LENGTH)
+        return (-1);
+
+    lt = tm;
+    if (lt == NULL) {
+        memset(&ltm, 0, sizeof(ltm));
+        lt = &ltm;
+    }
+
+    /* Timezone is required and must be GMT (Zulu). */
+    if (bytes[len - 1] != 'Z')
+        return (-1);
+
+    /* Make sure everything else is digits. */
+    for (i = 0; i < len - 1; i++) {
+        if (isdigit((unsigned char) bytes[i]))
+            continue;
+        return (-1);
+    }
+
+    /*
+     * Validate and convert the time
+     */
+    p = bytes;
+    switch (len) {
+    case GENTIME_LENGTH:
+        if (mode == V_ASN1_UTCTIME)
+            return (-1);
+        lt->tm_year = (ATOI2(p) * 100) - 1900; /* cc */
+        type = V_ASN1_GENERALIZEDTIME;
+        /* FALLTHROUGH */
+    case UTCTIME_LENGTH:
+        if (type == 0) {
+            if (mode == V_ASN1_GENERALIZEDTIME)
+                return (-1);
+            type = V_ASN1_UTCTIME;
+        }
+        lt->tm_year += ATOI2(p); /* yy */
+        if (type == V_ASN1_UTCTIME) {
+            if (lt->tm_year < 50)
+                lt->tm_year += 100;
+        }
+        lt->tm_mon = ATOI2(p) - 1; /* mm */
+        if (lt->tm_mon < 0 || lt->tm_mon > 11)
+            return (-1);
+        lt->tm_mday = ATOI2(p); /* dd */
+        if (lt->tm_mday < 1 || lt->tm_mday > 31)
+            return (-1);
+        lt->tm_hour = ATOI2(p); /* HH */
+        if (lt->tm_hour < 0 || lt->tm_hour > 23)
+            return (-1);
+        lt->tm_min = ATOI2(p); /* MM */
+        if (lt->tm_min < 0 || lt->tm_min > 59)
+            return (-1);
+        lt->tm_sec = ATOI2(p); /* SS */
+        /* Leap second 60 is not accepted. Reconsider later? */
+        if (lt->tm_sec < 0 || lt->tm_sec > 59)
+            return (-1);
+        break;
+    default:
+        return (-1);
+    }
+
+    return (type);
+}
+#endif /*_WIN32*/
+
+namespace dht {
+namespace http {
+
+void
+addSystemCaCertificates(SSL_CTX* ctx, const std::shared_ptr<Logger>& logger)
+{
+    X509_STORE* store = SSL_CTX_get_cert_store(ctx);
+    if (store == nullptr) {
+        if (logger)
+            logger->e("couldn't get the context cert store");
+        return;
+    }
+
+    X509* x509cert;
+#ifdef _WIN32
+    PCCERT_CONTEXT pContext = NULL;
+    HCERTSTORE hSystemStore;
+    hSystemStore = CertOpenSystemStore(NULL, "ROOT");
+    if (!hSystemStore) {
+        if (logger)
+            logger->e("couldn't open the system cert store");
+        return;
+    }
+    while (pContext = CertEnumCertificatesInStore(hSystemStore, pContext)) {
+        x509cert = nullptr;
+        const uint8_t* encoded_cert = pContext->pbCertEncoded;
+        x509cert = d2i_X509(nullptr, &encoded_cert, pContext->cbCertEncoded);
+        if (x509cert) {
+            if (X509_STORE_add_cert(store, x509cert) == 1) {
+                if (logger)
+                    logger->d("local certificate added");
+            }
+            X509_free(x509cert);
+        }
+    }
+    CertCloseStore(hSystemStore, 0);
+#elif __APPLE__
+    CFArrayRef result = NULL;
+    OSStatus osStatus;
+
+    if ((osStatus = SecTrustCopyAnchorCertificates(&result)) != 0) {
+        if (logger) {
+            CFStringRef statusString = SecCopyErrorMessageString(osStatus, NULL);
+            logger->d("Error enumerating certificates: %s",
+                      CFStringGetCStringPtr(statusString, kCFStringEncodingASCII));
+            CFRelease(statusString);
+        }
+        if (result != NULL) {
+            CFRelease(result);
+        }
+        return;
+    }
+    CFDataRef rawData = NULL;
+    for (CFIndex i = 0; i < CFArrayGetCount(result); i++) {
+        x509cert = nullptr;
+        SecCertificateRef cert = (SecCertificateRef) CFArrayGetValueAtIndex(result, i);
+        rawData = SecCertificateCopyData(cert);
+        if (!rawData) {
+            if (logger)
+                logger->e("couldn't copy raw certificate data");
+            break;
+        }
+        const uint8_t* rawDataPtr = CFDataGetBytePtr(rawData);
+        x509cert = d2i_X509(nullptr, &rawDataPtr, CFDataGetLength(rawData));
+        if (x509cert) {
+            if (X509_STORE_add_cert(store, x509cert) == 1) {
+                if (logger)
+                    logger->d("local certificate added");
+            }
+            X509_free(x509cert);
+        }
+        CFRelease(rawData);
+        rawData = NULL;
+    }
+    if (result != NULL) {
+        CFRelease(result);
+    }
+    if (rawData != NULL) {
+        CFRelease(rawData);
+    }
+#endif /*__APPLE__, _WIN32*/
+}
+
+} /*namespace http*/
+} /*namespace dht*/

src/compat/os_cert.h

@@ -0,0 +1,38 @@
+/*
+ *  Copyright (C) 2020 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, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "log_enable.h"
+
+#include <memory>
+
+#include <openssl/x509.h>
+
+#ifdef _WIN32
+#define V_ASN1_UTCTIME         23
+#define V_ASN1_GENERALIZEDTIME 24
+#define timegm                 _mkgmtime
+int ASN1_time_parse(const char* bytes, size_t len, struct tm* tm, int mode);
+#endif /*_WIN32*/
+
+namespace dht {
+namespace http {
+void addSystemCaCertificates(SSL_CTX* ctx, const std::shared_ptr<Logger>& logger);
+}
+} // namespace dht

src/crypto.cpp

@@ -1,6 +1,7 @@
 /*
  *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *           Vsevolod Ivanov <vsevolod.ivanov@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
@@ -25,6 +26,7 @@ extern "C" {
 #include <gnutls/x509.h>
 #include <nettle/gcm.h>
 #include <nettle/aes.h>
+#include <gnutls/crypto.h>
 
 #include <argon2.h>
 }
@@ -875,6 +877,18 @@ Certificate::getLongId() const
 #endif
 }
 
+Blob
+Certificate::getSerialNumber() const
+{
+    if (not cert)
+        return {};
+    // extract from certificate
+    unsigned char serial[64];
+    auto size = sizeof(serial);
+    gnutls_x509_crt_get_serial(cert, &serial, &size);
+    return {serial, serial + size};
+}
+
 std::string
 Certificate::getName() const
 {
@@ -1020,6 +1034,32 @@ Certificate::getPreferredDigest() const
     return getPublicKey().getPreferredDigest();
 }
 
+std::pair<Blob,Blob>
+Certificate::generateOcspRequest(gnutls_x509_crt_t& issuer)
+{
+    gnutls_ocsp_req_t rreq;
+    int err = gnutls_ocsp_req_init(&rreq);
+    if (err < 0)
+        throw CryptoException(gnutls_strerror(err));
+    std::unique_ptr<struct gnutls_ocsp_req_int, decltype(&gnutls_ocsp_req_deinit)> req(rreq, &gnutls_ocsp_req_deinit);
+    err = gnutls_ocsp_req_add_cert(req.get(), GNUTLS_DIG_SHA512, issuer, cert);
+    if (err < 0)
+        throw CryptoException(gnutls_strerror(err));
+    Blob noncebuf(64);
+    gnutls_datum_t nonce = { noncebuf.data(), (unsigned)noncebuf.size() };
+    err = gnutls_rnd(GNUTLS_RND_NONCE, nonce.data, nonce.size);
+    err = gnutls_ocsp_req_set_nonce(req.get(), 0, &nonce);
+    if (err < 0)
+        throw CryptoException(gnutls_strerror(err));
+    gnutls_datum_t rdata;
+    err = gnutls_ocsp_req_export(req.get(), &rdata);
+    if (err != 0)
+        throw CryptoException(gnutls_strerror(err));
+    Blob ret(rdata.data, rdata.data + rdata.size);
+    gnutls_free(rdata.data);
+    return std::make_pair<Blob,Blob>(std::move(ret), std::move(noncebuf));
+}
+
 // PrivateKey
 
 PrivateKey
@@ -1206,6 +1246,127 @@ Certificate::getRevocationLists() const
     return ret;
 }
 
+// OcspResponse
+
+OcspResponse::OcspResponse(const uint8_t* dat_ptr, size_t dat_size)
+{
+    int ret = gnutls_ocsp_resp_init(&response);
+    if (ret < 0)
+        throw CryptoException(gnutls_strerror(ret));
+    gnutls_datum_t dat = {(unsigned char*)dat_ptr,(unsigned int)dat_size};
+    ret = gnutls_ocsp_resp_import(response, &dat);
+    if (ret < 0){
+        gnutls_ocsp_resp_deinit(response);
+        throw CryptoException(gnutls_strerror(ret));
+    }
+}
+
+OcspResponse::~OcspResponse()
+{
+    gnutls_ocsp_resp_deinit(response);
+}
+
+Blob
+OcspResponse::pack() const
+{
+    gnutls_datum_t dat;
+    int ret = gnutls_ocsp_resp_export(response, &dat);
+    if (ret < 0)
+        throw CryptoException(gnutls_strerror(ret));
+    return {dat.data, dat.data + dat.size};
+}
+
+std::string
+OcspResponse::toString(const bool compact) const
+{
+    int ret;
+    std::string str;
+    gnutls_datum_t dat;
+    ret = gnutls_ocsp_resp_print(response, compact ? GNUTLS_OCSP_PRINT_COMPACT : GNUTLS_OCSP_PRINT_FULL, &dat);
+    if (ret == 0)
+        str = std::string((const char*)dat.data, (size_t)dat.size);
+    gnutls_free(dat.data);
+    if (ret < 0)
+        throw CryptoException(gnutls_strerror(ret));
+    return str;
+}
+
+
+gnutls_ocsp_cert_status_t
+OcspResponse::getCertificateStatus() const
+{
+    int ret;
+    unsigned int status;
+    ret = gnutls_ocsp_resp_get_single(response, 0, NULL, NULL, NULL, NULL, &status, NULL, NULL, NULL, NULL);
+    if (ret < 0)
+        throw CryptoException(gnutls_strerror(ret));
+    return (gnutls_ocsp_cert_status_t) status;
+}
+
+gnutls_ocsp_verify_reason_t
+OcspResponse::verifyDirect(const Certificate& crt, const Blob& nonce)
+{
+    // https://www.gnutls.org/manual/html_node/Error-codes.html
+    int ret = -1;
+    // http://www.gnu.org/software/gnutls/reference/gnutls-ocsp.html#gnutls-ocsp-verify-reason-t
+    unsigned int verify = 0;
+    // http://www.gnu.org/software/gnutls/reference/gnutls-ocsp.html#gnutls-ocsp-cert-status-t
+    unsigned int status = 6; // by default assume GNUTLS_OCSP_RESP_UNAUTHORIZED
+
+#if GNUTLS_VERSION_NUMBER >= 0x030103
+    /*
+     * This function will check whether the OCSP response is about the provided certificate.
+     *     index: Specifies response number to get. Use (0) to get the first one.
+     */
+    if ((ret = gnutls_ocsp_resp_check_crt(response, 0, crt.cert)) < 0)
+        goto end;
+#endif
+    /*
+     * Verify signature of the Basic OCSP Response against the public key in the issuer certificate.
+     * http://www.gnu.org/software/gnutls/reference/gnutls-ocsp.html#gnutls-ocsp-resp-verify-direct
+     */
+    ret = gnutls_ocsp_resp_verify_direct(response, crt.issuer->cert /*signer*/, &verify, 0);
+    if (ret < 0)
+        goto end;
+    ret = gnutls_ocsp_resp_check_crt(response, 0 /*index*/, crt.cert);
+    if (ret < 0)
+        goto end;
+    /*
+     * This function will return the certificate information of the indx'ed response in the
+     * Basic OCSP Response resp. The information returned corresponds to the OCSP SingleResponse
+     * structure except the final singleExtensions.
+     * http://www.gnu.org/software/gnutls/reference/gnutls-ocsp.html#gnutls-ocsp-resp-get-single
+     */
+    ret = gnutls_ocsp_resp_get_single(response, 0, NULL, NULL, NULL, NULL, &status, NULL, NULL, NULL, NULL);
+    if (ret < 0)
+        goto end;
+    gnutls_datum_t rnonce;
+    /*
+     * This function will return the Basic OCSP Response nonce extension data.
+     */
+    ret = gnutls_ocsp_resp_get_nonce(response, NULL, &rnonce);
+    if (ret < 0)
+        goto end;
+    // Ensure no replay attack has been done
+    if (rnonce.size != nonce.size() || memcmp(nonce.data(), rnonce.data, nonce.size()) != 0){
+        ret = GNUTLS_E_OCSP_RESPONSE_ERROR;
+        goto end;
+    }
+end:
+    /*
+     * OCSP validation outcome based on interogative aspects
+     */
+    if (ret != GNUTLS_E_SUCCESS)
+        throw CryptoException(gnutls_strerror(ret));
+    else if (status != GNUTLS_OCSP_CERT_GOOD)
+        if (status == GNUTLS_OCSP_CERT_REVOKED)
+            throw CryptoException("Certificate was revoked");
+        else
+            throw CryptoException("Certificate is unknown");
+    else
+        return (gnutls_ocsp_verify_reason_t) verify;
+}
+
 // RevocationList
 
 RevocationList::RevocationList()

src/dht.cpp

@@ -17,7 +17,6 @@
  *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
-
 #include "dht.h"
 #include "rng.h"
 #include "search.h"
@@ -43,13 +42,41 @@ constexpr duration Dht::REANNOUNCE_MARGIN;
 static constexpr size_t MAX_REQUESTS_PER_SEC {8 * 1024};
 
 NodeStatus
-Dht::getStatus(sa_family_t af) const
+Dht::updateStatus(sa_family_t af)
 {
-    const auto& stats = getNodesStats(af);
-    if (stats.good_nodes)
-        return NodeStatus::Connected;
-    auto& ping = af == AF_INET ? pending_pings4 : pending_pings6;
-    if (ping or stats.getKnownNodes())
+    auto& d = dht(af);
+    auto old = d.status;
+    d.status = d.getStatus(scheduler.time());
+    if (d.status != old) {
+        auto& other = dht(af == AF_INET ? AF_INET6 : AF_INET);
+        if (other.status == NodeStatus::Disconnected && d.status == NodeStatus::Disconnected)
+            onDisconnected();
+        else if (other.status == NodeStatus::Connected || d.status == NodeStatus::Connected) {
+            // On connected
+            if (bootstrapJob) {
+                bootstrapJob->cancel();
+                bootstrapJob.reset();
+            }
+            bootstrap_period = std::chrono::seconds(10);
+        }
+    }
+    return d.status;
+}
+
+NodeStatus
+Dht::Kad::getStatus(time_point now) const
+{
+    unsigned dubious = 0;
+    for (const auto& b : buckets) {
+        for (auto& n : b.nodes) {
+            if (n->isGood(now)) {
+                return NodeStatus::Connected;
+            } else if (not n->isExpired())
+                dubious++;
+        }
+    }
+    auto& ping = pending_pings;
+    if (dubious or ping)
         return NodeStatus::Connecting;
     return NodeStatus::Disconnected;
 }
@@ -218,8 +245,8 @@ Dht::expireSearches()
             return b;
         } else { return false; }
     };
-    erase_if(searches4, expired);
-    erase_if(searches6, expired);
+    erase_if(dht4.searches, expired);
+    erase_if(dht6.searches, expired);
 }
 
 void
@@ -405,7 +432,7 @@ void Dht::searchSendAnnounceValue(const Sp<Search>& sr) {
     { /* when put done */
         if (auto sr = ws.lock()) {
             onAnnounceDone(req.node, answer, sr);
-            searchStep(sr);
+            scheduler.edit(sr->nextSearchStep, scheduler.time());
         }
     };
 
@@ -463,7 +490,29 @@ void Dht::searchSendAnnounceValue(const Sp<Search>& sr) {
                     logger_->w(sr->id, sn->node->id, "[search %s] [node %s] sending 'refresh' (vid: %d)",
                         sr->id.toString().c_str(), sn->node->toString().c_str(), a.value->id);
                 sn->acked[a.value->id] = {
-                    network_engine.sendRefreshValue(sn->node, sr->id, a.value->id, sn->token, onDone, onExpired),
+                    network_engine.sendRefreshValue(sn->node, sr->id, a.value->id, sn->token, onDone,
+                    [this, ws, node=sn->node, v=a.value, 
+                     onDone, 
+                     onExpired, 
+                     created = a.permanent ? time_point::max() : a.created,
+                     next_refresh_time
+                    ](const net::Request& /*req*/, net::DhtProtocolException&& e){
+                        if (e.getCode() == net::DhtProtocolException::NOT_FOUND) {
+                            if (logger_)
+                                logger_->e(node->id, "[node %s] returned error 404: storage not found", node->toString().c_str());
+                            if (auto sr = ws.lock()) {
+                                if (auto sn = sr->getNode(node)) {
+                                    sn->acked[v->id] = {
+                                        network_engine.sendAnnounceValue(sn->node, sr->id, v, created, sn->token, onDone, onExpired),
+                                        next_refresh_time
+                                    };
+                                    scheduler.edit(sr->nextSearchStep, scheduler.time());
+                                    return true;
+                                }
+                            }
+                        }
+                        return false;
+                    }, onExpired),
                     next_refresh_time
                 };
             } else {
@@ -542,33 +591,30 @@ Dht::searchSynchedNodeListen(const Sp<Search>& sr, SearchNode& n)
     std::weak_ptr<Search> ws = sr;
     for (const auto& l : sr->listeners) {
         const auto& query = l.second.query;
-        auto list_token = l.first;
-        if (n.getListenTime(query, listenExp) > scheduler.time())
+        
+        auto r = n.listenStatus.find(query);
+        if (n.getListenTime(r, listenExp) > scheduler.time())
             continue;
         // if (logger_)
         //     logger_->d(sr->id, n.node->id, "[search %s] [node %s] sending 'listen'",
         //        sr->id.toString().c_str(), n.node->toString().c_str());
 
-        auto r = n.listenStatus.find(query);
         if (r == n.listenStatus.end()) {
             r = n.listenStatus.emplace(std::piecewise_construct,
                 std::forward_as_tuple(query),
                 std::forward_as_tuple(
-                [ws,list_token](const std::vector<Sp<Value>>& values, bool expired){
-                    if (auto sr = ws.lock()) {
-                        auto l = sr->listeners.find(list_token);
-                        if (l != sr->listeners.end()) {
-                            l->second.get_cb(values, expired);
+                    l.second.get_cb,
+                    l.second.sync_cb,
+                    n.node->openSocket([this,ws,query](const Sp<Node>& node, net::RequestAnswer&& answer) mutable {
+                        /* on new values */
+                        if (auto sr = ws.lock()) {
+                            scheduler.edit(sr->nextSearchStep, scheduler.time());
+                            sr->insertNode(node, scheduler.time(), answer.ntoken);
+                            if (auto sn = sr->getNode(node)) {
+                                sn->onValues(query, std::move(answer), types, scheduler);
+                            }
                         }
-                    }
-                }, [ws,list_token] (ListenSyncStatus status) {
-                    if (auto sr = ws.lock()) {
-                        auto l = sr->listeners.find(list_token);
-                        if (l != sr->listeners.end()) {
-                            l->second.sync_cb(status);
-                        }
-                    }
-                })).first;
+                    }))).first;
             r->second.cacheExpirationJob = scheduler.add(time_point::max(), [this,ws,query,node=n.node]{
                 if (auto sr = ws.lock()) {
                     if (auto sn = sr->getNode(node)) {
@@ -577,8 +623,7 @@ Dht::searchSynchedNodeListen(const Sp<Search>& sr, SearchNode& n)
                 }
             });
         }
-        auto prev_req = r != n.listenStatus.end() ? r->second.req : nullptr;
-        auto new_req = network_engine.sendListen(n.node, sr->id, *query, n.token, prev_req,
+        auto new_req = network_engine.sendListen(n.node, sr->id, *query, n.token, r->second.socketId,
             [this,ws,query](const net::Request& req, net::RequestAnswer&& answer) mutable
             { /* on done */
                 if (auto sr = ws.lock()) {
@@ -598,16 +643,6 @@ Dht::searchSynchedNodeListen(const Sp<Search>& sr, SearchNode& n)
                         if (auto sn = sr->getNode(req.node))
                             sn->listenStatus.erase(query);
                 }
-            },
-            [this,ws,query](const Sp<Node>& node, net::RequestAnswer&& answer) mutable
-            { /* on new values */
-                if (auto sr = ws.lock()) {
-                    scheduler.edit(sr->nextSearchStep, scheduler.time());
-                    sr->insertNode(node, scheduler.time(), answer.ntoken);
-                    if (auto sn = sr->getNode(node)) {
-                        sn->onValues(query, std::move(answer), types, scheduler);
-                    }
-                }
             }
         );
         // Here the request may have failed and the CachedListenStatus removed
@@ -690,8 +725,8 @@ Dht::searchStep(Sp<Search> sr)
 
     while (sr->currentlySolicitedNodeCount() < MAX_REQUESTED_SEARCH_NODES and searchSendGetValues(sr));
 
-    if (sr->getNumberOfConsecutiveBadNodes() >= std::min(sr->nodes.size(),
-                                                             static_cast<size_t>(SEARCH_MAX_BAD_NODES)))
+    
+    if (sr->getNumberOfConsecutiveBadNodes() >= std::min<size_t>(sr->nodes.size(), SEARCH_MAX_BAD_NODES))
     {
         if (logger_)
             logger_->w(sr->id, "[search %s IPv%c] expired", sr->id.toString().c_str(), sr->af == AF_INET ? '4' : '6');
@@ -750,7 +785,7 @@ Dht::search(const InfoHash& id, sa_family_t af, GetCallback gcb, QueryCallback q
         sr->done = false;
         sr->expired = false;
     } else {
-        if (searches4.size() + searches6.size() < MAX_SEARCHES) {
+        if (srs.size() < max_searches) {
             sr = std::make_shared<Search>();
             srs.emplace(id, sr);
         } else {
@@ -798,47 +833,12 @@ Dht::announce(const InfoHash& id,
 {
     auto& srs = searches(af);
     auto srp = srs.find(id);
-    auto sr = srp == srs.end() ? search(id, af) : srp->second;
-    if (!sr) {
-        if (callback)
-            callback(false, {});
-        return;
+    if (auto sr = srp == srs.end() ? search(id, af) : srp->second) {
+        sr->put(value, callback, created, permanent);
+        scheduler.edit(sr->nextSearchStep, scheduler.time());
+    } else if (callback) {
+        callback(false, {});
     }
-    sr->done = false;
-    sr->expired = false;
-    auto a_sr = std::find_if(sr->announce.begin(), sr->announce.end(), [&](const Announce& a){
-        return a.value->id == value->id;
-    });
-    if (a_sr == sr->announce.end()) {
-        sr->announce.emplace_back(Announce {permanent, value, created, callback});
-        for (auto& n : sr->nodes) {
-            n->probe_query.reset();
-            n->acked[value->id].first.reset();
-        }
-    } else {
-        a_sr->permanent = permanent;
-        a_sr->created = created;
-        if (a_sr->value != value) {
-            a_sr->value = value;
-            for (auto& n : sr->nodes) {
-                n->acked[value->id].first.reset();
-                n->probe_query.reset();
-            }
-        }
-        if (sr->isAnnounced(value->id)) {
-            if (a_sr->callback)
-                a_sr->callback(true, {});
-            a_sr->callback = {};
-            if (callback)
-                callback(true, {});
-            return;
-        } else {
-            if (a_sr->callback)
-                a_sr->callback(false, {});
-            a_sr->callback = callback;
-        }
-    }
-    scheduler.edit(sr->nextSearchStep, scheduler.time());
 }
 
 size_t
@@ -872,7 +872,7 @@ Dht::listen(const InfoHash& id, ValueCallback cb, Value::Filter f, Where where)
     auto query = std::make_shared<Query>(Select{}, std::move(where));
     auto filter = f.chain(query->where.getFilter());
     auto st = store.find(id);
-    if (st == store.end() && store.size() < MAX_HASHES)
+    if (st == store.end() && store.size() < max_store_keys)
         st = store.emplace(id, scheduler.time() + MAX_STORAGE_MAINTENANCE_EXPIRE_TIME).first;
 
     size_t tokenlocal = 0;
@@ -918,8 +918,8 @@ Dht::cancelListen(const InfoHash& id, size_t token)
                 srp->second->cancelListen(token, scheduler);
         }
     };
-    searches_cancel_listen(searches4, std::get<1>(it->second));
-    searches_cancel_listen(searches6, std::get<2>(it->second));
+    searches_cancel_listen(dht4.searches, std::get<1>(it->second));
+    searches_cancel_listen(dht6.searches, std::get<2>(it->second));
     listeners.erase(it);
     return true;
 }
@@ -1130,8 +1130,8 @@ Dht::getPut(const InfoHash& id) const
         auto vals = srp->second->getPut();
         ret.insert(ret.end(), vals.begin(), vals.end());
     };
-    find_values(searches4);
-    find_values(searches6);
+    find_values(dht4.searches);
+    find_values(dht6.searches);
     return ret;
 }
 
@@ -1142,9 +1142,9 @@ Dht::getPut(const InfoHash& id, const Value::Id& vid) const
         auto srp = srs.find(id);
         return (srp != srs.end()) ? srp->second->getPut(vid) : Sp<Value> {};
     };
-    if (auto v4 = find_value(searches4))
+    if (auto v4 = find_value(dht4.searches))
         return v4;
-    if (auto v6 = find_value(searches6))
+    if (auto v6 = find_value(dht6.searches))
         return v6;
     return {};
 }
@@ -1157,8 +1157,8 @@ Dht::cancelPut(const InfoHash& id, const Value::Id& vid)
         auto srp = srs.find(id);
         return (srp != srs.end()) ? srp->second->cancelPut(vid) : false;
     };
-    canceled |= sr_cancel_put(searches4);
-    canceled |= sr_cancel_put(searches6);
+    canceled |= sr_cancel_put(dht4.searches);
+    canceled |= sr_cancel_put(dht6.searches);
     if (canceled)
         storageErase(id, vid);
     return canceled;
@@ -1209,7 +1209,7 @@ Dht::storageChanged(const InfoHash& id, Storage& st, ValueStorage& v, bool newVa
                 vals.push_back(v.data);
                 Blob ntoken = makeToken(node_listeners.first->getAddr(), false);
                 network_engine.tellListener(node_listeners.first, l.first, id, 0, ntoken, {}, {},
-                        std::move(vals), l.second.query);
+                        std::move(vals), l.second.query, l.second.version);
             }
         }
     }
@@ -1226,7 +1226,7 @@ Dht::storageStore(const InfoHash& id, const Sp<Value>& value, time_point created
 
     auto st = store.find(id);
     if (st == store.end()) {
-        if (store.size() >= MAX_HASHES)
+        if (store.size() >= max_store_keys)
             return false;
         auto st_i = store.emplace(id, now);
         st = st_i.first;
@@ -1267,12 +1267,12 @@ Dht::storageErase(const InfoHash& id, Value::Id vid)
 }
 
 void
-Dht::storageAddListener(const InfoHash& id, const Sp<Node>& node, size_t socket_id, Query&& query)
+Dht::storageAddListener(const InfoHash& id, const Sp<Node>& node, size_t socket_id, Query&& query, int version)
 {
     const auto& now = scheduler.time();
     auto st = store.find(id);
     if (st == store.end()) {
-        if (store.size() >= MAX_HASHES)
+        if (store.size() >= max_store_keys)
             return;
         st = store.emplace(id, now).first;
     }
@@ -1282,10 +1282,10 @@ Dht::storageAddListener(const InfoHash& id, const Sp<Node>& node, size_t socket_
         auto vals = st->second.get(query.where.getFilter());
         if (not vals.empty()) {
             network_engine.tellListener(node, socket_id, id, WANT4 | WANT6, makeToken(node->getAddr(), false),
-                    buckets4.findClosestNodes(id, now, TARGET_NODES), buckets6.findClosestNodes(id, now, TARGET_NODES),
-                    std::move(vals), query);
+                    dht4.buckets.findClosestNodes(id, now, TARGET_NODES), dht6.buckets.findClosestNodes(id, now, TARGET_NODES),
+                    std::move(vals), query, version);
         }
-        node_listeners.emplace(socket_id, Listener {now, std::forward<Query>(query)});
+        node_listeners.emplace(socket_id, Listener {now, std::forward<Query>(query), version});
     }
     else
         l->second.refresh(now, std::forward<Query>(query));
@@ -1320,7 +1320,7 @@ Dht::expireStore(decltype(store)::iterator i)
                             id.toString().c_str(),
                             node_listeners.first->toString().c_str());
                     Blob ntoken = makeToken(node_listeners.first->getAddr(), false);
-                    network_engine.tellListenerExpired(node_listeners.first, l.first, id, ntoken, ids);
+                    network_engine.tellListenerExpired(node_listeners.first, l.first, id, ntoken, ids, l.second.version);
                 }
             }
         }
@@ -1460,11 +1460,17 @@ Dht::tokenMatch(const Blob& token, const SockAddr& addr) const
 
 NodeStats
 Dht::getNodesStats(sa_family_t af) const
+{
+    NodeStats stats = dht(af).getNodesStats(scheduler.time(), myid);
+    stats.node_cache_size = network_engine.getNodeCacheSize(af);
+    return stats;
+}
+
+NodeStats
+Dht::Kad::getNodesStats(time_point now, const InfoHash& myid) const
 {
     NodeStats stats {};
-    const auto& now = scheduler.time();
-    const auto& bcks = buckets(af);
-    for (const auto& b : bcks) {
+    for (const auto& b : buckets) {
         for (auto& n : b.nodes) {
             if (n->isGood(now)) {
                 stats.good_nodes++;
@@ -1476,26 +1482,11 @@ Dht::getNodesStats(sa_family_t af) const
         if (b.cached)
             stats.cached_nodes++;
     }
-    stats.table_depth = bcks.depth(bcks.findBucket(myid));
-    stats.searches = searches(af).size();
-    stats.cached_nodes = network_engine.getNodeCacheSize(af);
+    stats.table_depth = buckets.depth(buckets.findBucket(myid));
+    stats.searches = searches.size();
     return stats;
 }
 
-NodeMetrics
-Dht::getNodeMetrics() const
-{
-    NodeMetrics metrics;
-    metrics.scheduler_size = scheduler.size();
-    metrics.node_cache_size = network_engine.getNodeCacheSize();
-    metrics.rate_limiter_size = network_engine.getRateLimiterSize();
-    metrics.store_size = store.size();
-    metrics.store_quota_size = store_quota.size();
-    metrics.reported_addr_num = reported_addr.size();
-    metrics.request_count = net::REQ_COUNT.load();
-    return metrics;
-}
-
 void
 Dht::dumpBucket(const Bucket& b, std::ostream& out) const
 {
@@ -1613,18 +1604,18 @@ Dht::dumpTables() const
     out << "My id " << myid << std::endl;
 
     out << "Buckets IPv4 :" << std::endl;
-    for (const auto& b : buckets4)
+    for (const auto& b : dht4.buckets)
         dumpBucket(b, out);
     out << "Buckets IPv6 :" << std::endl;
-    for (const auto& b : buckets6)
+    for (const auto& b : dht6.buckets)
         dumpBucket(b, out);
 
     auto dump_searches = [&](std::map<InfoHash, Sp<Search>> srs) {
         for (auto& srp : srs)
             dumpSearch(*srp.second, out);
     };
-    dump_searches(searches4);
-    dump_searches(searches6);
+    dump_searches(dht4.searches);
+    dump_searches(dht6.searches);
     out << std::endl;
 
     out << getStorageLog() << std::endl;
@@ -1700,24 +1691,24 @@ std::string
 Dht::getSearchesLog(sa_family_t af) const
 {
     std::stringstream out;
-    auto num_searches = searches4.size() + searches6.size();
+    auto num_searches = dht4.searches.size() + dht6.searches.size();
     if (num_searches > 8) {
         if (not af or af == AF_INET)
-            for (const auto& sr : searches4)
+            for (const auto& sr : dht4.searches)
                 out << "[search " << sr.first << " IPv4]" << std::endl;
         if (not af or af == AF_INET6)
-            for (const auto& sr : searches6)
+            for (const auto& sr : dht6.searches)
                 out << "[search " << sr.first << " IPv6]" << std::endl;
     } else {
         out << "s:synched, u:updated, a:announced, c:candidate, f:cur req, x:expired, *:known" << std::endl;
         if (not af or af == AF_INET)
-            for (const auto& sr : searches4)
+            for (const auto& sr : dht4.searches)
                 dumpSearch(*sr.second, out);
         if (not af or af == AF_INET6)
-            for (const auto& sr : searches6)
+            for (const auto& sr : dht6.searches)
                 dumpSearch(*sr.second, out);
     }
-    out << "Total: " << num_searches << " searches (" << searches4.size() << " IPv4, " << searches6.size() << " IPv6)." << std::endl;
+    out << "Total: " << num_searches << " searches (" << dht4.searches.size() << " IPv4, " << dht6.searches.size() << " IPv6)." << std::endl;
     return out.str();
 }
 
@@ -1738,9 +1729,9 @@ Dht::getSearchLog(const InfoHash& id, sa_family_t af) const
 
 Dht::~Dht()
 {
-    for (auto& s : searches4)
+    for (auto& s : dht4.searches)
         s.second->clear();
-    for (auto& s : searches6)
+    for (auto& s : dht6.searches)
         s.second->clear();
 }
 
@@ -1759,7 +1750,12 @@ fromDhtConfig(const Config& config)
 Dht::Dht() : store(), network_engine(logger_, rd, scheduler, {}) {}
 
 Dht::Dht(std::unique_ptr<net::DatagramSocket>&& sock, const Config& config, const Sp<Logger>& l)
-    : DhtInterface(l), myid(config.node_id ? config.node_id : InfoHash::getRandom()), store(), store_quota(),
+    : DhtInterface(l),
+    myid(config.node_id ? config.node_id : InfoHash::getRandom(rd)),
+    store(),
+    store_quota(),
+    max_store_keys(config.max_store_size ? (int)config.max_store_size : MAX_HASHES),
+    max_searches(config.max_searches ? (int)config.max_searches : MAX_SEARCHES),
     network_engine(myid, fromDhtConfig(config), std::move(sock), logger_, rd, scheduler,
             std::bind(&Dht::onError, this, _1, _2),
             std::bind(&Dht::onNewNode, this, _1, _2),
@@ -1767,7 +1763,7 @@ Dht::Dht(std::unique_ptr<net::DatagramSocket>&& sock, const Config& config, cons
             std::bind(&Dht::onPing, this, _1),
             std::bind(&Dht::onFindNode, this, _1, _2, _3),
             std::bind(&Dht::onGetValues, this, _1, _2, _3, _4),
-            std::bind(&Dht::onListen, this, _1, _2, _3, _4, _5),
+            std::bind(&Dht::onListen, this, _1, _2, _3, _4, _5, _6),
             std::bind(&Dht::onAnnounce, this, _1, _2, _3, _4, _5),
             std::bind(&Dht::onRefresh, this, _1, _2, _3, _4)),
     persistPath(config.persist_path),
@@ -1780,12 +1776,12 @@ Dht::Dht(std::unique_ptr<net::DatagramSocket>&& sock, const Config& config, cons
     if (not s or (not s->hasIPv4() and not s->hasIPv6()))
         throw DhtException("Opened socket required");
     if (s->hasIPv4()) {
-        buckets4 = {Bucket {AF_INET}};
-        buckets4.is_client = config.is_bootstrap;
+        dht4.buckets = {Bucket {AF_INET}};
+        dht4.buckets.is_client = config.is_bootstrap;
     }
     if (s->hasIPv6()) {
-        buckets6 = {Bucket {AF_INET6}};
-        buckets6.is_client = config.is_bootstrap;
+        dht6.buckets = {Bucket {AF_INET6}};
+        dht6.buckets.is_client = config.is_bootstrap;
     }
 
     search_id = std::uniform_int_distribution<decltype(search_id)>{}(rd);
@@ -1797,13 +1793,13 @@ Dht::Dht(std::unique_ptr<net::DatagramSocket>&& sock, const Config& config, cons
     secret = std::uniform_int_distribution<uint64_t>{}(rd);
     rotateSecrets();
 
+    if (not persistPath.empty())
+        loadState(persistPath);
+
     expire();
 
     if (logger_)
         logger_->d("DHT node initialised with ID %s", myid.toString().c_str());
-
-    if (not persistPath.empty())
-        loadState(persistPath);
 }
 
 bool
@@ -1980,13 +1976,39 @@ Dht::expire()
     uniform_duration_distribution<> time_dis(std::chrono::minutes(2), std::chrono::minutes(6));
     auto expire_stuff_time = scheduler.time() + duration(time_dis(rd));
 
-    expireBuckets(buckets4);
-    expireBuckets(buckets6);
+    expireBuckets(dht4.buckets);
+    expireBuckets(dht6.buckets);
     expireStore();
     expireSearches();
     scheduler.add(expire_stuff_time, std::bind(&Dht::expire, this));
 }
 
+void
+Dht::onDisconnected()
+{
+    if (dht4.status != NodeStatus::Disconnected || dht6.status != NodeStatus::Disconnected)
+        return;
+    if (logger_)
+        logger_->d(myid, "Bootstraping");
+    for (const auto& boootstrap : bootstrap_nodes) {
+        try {
+            auto ips = network_engine.getSocket()->resolve(boootstrap.first, boootstrap.second);
+            for (auto& ip : ips) {
+                if (ip.getPort() == 0)
+                    ip.setPort(net::DHT_DEFAULT_PORT);
+                pingNode(ip);
+            }
+        } catch (const std::exception& e) {
+            if (logger_)
+                logger_->e(myid, "Can't resolve %s:%s: %s", boootstrap.first.c_str(), boootstrap.second.c_str(), e.what());
+        }
+    }
+    if (bootstrapJob)
+        bootstrapJob->cancel();
+    bootstrapJob = scheduler.add(scheduler.time() + bootstrap_period, std::bind(&Dht::onDisconnected, this));
+    bootstrap_period *= 2;
+}
+
 void
 Dht::confirmNodes()
 {
@@ -1994,25 +2016,25 @@ Dht::confirmNodes()
     bool soon = false;
     const auto& now = scheduler.time();
 
-    if (searches4.empty() and getStatus(AF_INET) == NodeStatus::Connected) {
+    if (dht4.searches.empty() and dht4.status == NodeStatus::Connected) {
         if (logger_)
             logger_->d(myid, "[confirm nodes] initial IPv4 'get' for my id (%s)", myid.toString().c_str());
         search(myid, AF_INET);
     }
-    if (searches6.empty() and getStatus(AF_INET6) == NodeStatus::Connected) {
+    if (dht6.searches.empty() and dht6.status == NodeStatus::Connected) {
         if (logger_)
             logger_->d(myid, "[confirm nodes] initial IPv6 'get' for my id (%s)", myid.toString().c_str());
         search(myid, AF_INET6);
     }
 
-    soon |= bucketMaintenance(buckets4);
-    soon |= bucketMaintenance(buckets6);
+    soon |= bucketMaintenance(dht4.buckets);
+    soon |= bucketMaintenance(dht6.buckets);
 
     if (!soon) {
-        if (buckets4.grow_time >= now - seconds(150))
-            soon |= neighbourhoodMaintenance(buckets4);
-        if (buckets6.grow_time >= now - seconds(150))
-            soon |= neighbourhoodMaintenance(buckets6);
+        if (dht4.buckets.grow_time >= now - seconds(150))
+            soon |= neighbourhoodMaintenance(dht4.buckets);
+        if (dht6.buckets.grow_time >= now - seconds(150))
+            soon |= neighbourhoodMaintenance(dht6.buckets);
     }
 
     /* In order to maintain all buckets' age within 600 seconds, worst
@@ -2056,13 +2078,13 @@ Dht::importValues(const std::vector<ValuesExport>& import)
 {
     const auto& now = scheduler.time();
 
-    for (const auto& node : import) {
-        if (node.second.empty())
+    for (const auto& value : import) {
+        if (value.second.empty())
             continue;
 
         try {
             msgpack::unpacked msg;
-            msgpack::unpack(msg, (const char*)node.second.data(), node.second.size());
+            msgpack::unpack(msg, (const char*)value.second.data(), value.second.size());
             auto valarr = msg.get();
             if (valarr.type != msgpack::type::ARRAY)
                 throw msgpack::type_error();
@@ -2077,15 +2099,15 @@ Dht::importValues(const std::vector<ValuesExport>& import)
                     tmp_val.msgpack_unpack(valel.via.array.ptr[1]);
                 } catch (const std::exception&) {
                     if (logger_)
-                        logger_->e(node.first, "Error reading value at %s", node.first.toString().c_str());
+                        logger_->e(value.first, "Error reading value at %s", value.first.toString().c_str());
                     continue;
                 }
                 val_time = std::min(val_time, now);
-                storageStore(node.first, std::make_shared<Value>(std::move(tmp_val)), val_time);
+                storageStore(value.first, std::make_shared<Value>(std::move(tmp_val)), val_time);
             }
         } catch (const std::exception&) {
             if (logger_)
-                logger_->e(node.first, "Error reading values at %s", node.first.toString().c_str());
+                logger_->e(value.first, "Error reading values at %s", value.first.toString().c_str());
             continue;
         }
     }
@@ -2097,25 +2119,25 @@ Dht::exportNodes() const
 {
     const auto& now = scheduler.time();
     std::vector<NodeExport> nodes;
-    const auto b4 = buckets4.findBucket(myid);
-    if (b4 != buckets4.end()) {
+    const auto b4 = dht4.buckets.findBucket(myid);
+    if (b4 != dht4.buckets.end()) {
         for (auto& n : b4->nodes)
             if (n->isGood(now))
                 nodes.push_back(n->exportNode());
     }
-    const auto b6 = buckets6.findBucket(myid);
-    if (b6 != buckets6.end()) {
+    const auto b6 = dht6.buckets.findBucket(myid);
+    if (b6 != dht6.buckets.end()) {
         for (auto& n : b6->nodes)
             if (n->isGood(now))
                 nodes.push_back(n->exportNode());
     }
-    for (auto b = buckets4.begin(); b != buckets4.end(); ++b) {
+    for (auto b = dht4.buckets.begin(); b != dht4.buckets.end(); ++b) {
         if (b == b4) continue;
         for (auto& n : b->nodes)
             if (n->isGood(now))
                 nodes.push_back(n->exportNode());
     }
-    for (auto b = buckets6.begin(); b != buckets6.end(); ++b) {
+    for (auto b = dht6.buckets.begin(); b != dht6.buckets.end(); ++b) {
         if (b == b6) continue;
         for (auto& n : b->nodes)
             if (n->isGood(now))
@@ -2139,7 +2161,7 @@ Dht::pingNode(SockAddr sa, DoneCallbackSimple&& cb)
     scheduler.syncTime();
     if (logger_)
         logger_->d("Sending ping to %s", sa.toString().c_str());
-    auto& count = sa.getFamily() == AF_INET ? pending_pings4 : pending_pings6;
+    auto& count = dht(sa.getFamily()).pending_pings;
     count++;
     network_engine.sendPing(std::move(sa), [&count,cb](const net::Request&, net::RequestAnswer&&) {
         count--;
@@ -2161,7 +2183,6 @@ Dht::onError(Sp<net::Request> req, net::DhtProtocolException e) {
         if (logger_)
             logger_->e(node->id, "[node %s] token flush", node->toString().c_str());
         node->authError();
-        node->cancelRequest(req);
         for (auto& srp : searches(node->getFamily())) {
             auto& sr = srp.second;
             for (auto& n : sr->nodes) {
@@ -2200,9 +2221,9 @@ Dht::onFindNode(Sp<Node> node, const InfoHash& target, want_t want)
     net::RequestAnswer answer;
     answer.ntoken = makeToken(node->getAddr(), false);
     if (want & WANT4)
-        answer.nodes4 = buckets4.findClosestNodes(target, now, TARGET_NODES);
+        answer.nodes4 = dht4.buckets.findClosestNodes(target, now, TARGET_NODES);
     if (want & WANT6)
-        answer.nodes6 = buckets6.findClosestNodes(target, now, TARGET_NODES);
+        answer.nodes6 = dht6.buckets.findClosestNodes(target, now, TARGET_NODES);
     return answer;
 }
 
@@ -2221,8 +2242,8 @@ Dht::onGetValues(Sp<Node> node, const InfoHash& hash, want_t, const Query& query
     net::RequestAnswer answer {};
     auto st = store.find(hash);
     answer.ntoken = makeToken(node->getAddr(), false);
-    answer.nodes4 = buckets4.findClosestNodes(hash, now, TARGET_NODES);
-    answer.nodes6 = buckets6.findClosestNodes(hash, now, TARGET_NODES);
+    answer.nodes4 = dht4.buckets.findClosestNodes(hash, now, TARGET_NODES);
+    answer.nodes6 = dht6.buckets.findClosestNodes(hash, now, TARGET_NODES);
     if (st != store.end() && not st->second.empty()) {
         answer.values = st->second.get(query.where.getFilter());
         if (logger_)
@@ -2311,7 +2332,7 @@ void Dht::onGetValuesDone(const Sp<Node>& node,
 }
 
 net::RequestAnswer
-Dht::onListen(Sp<Node> node, const InfoHash& hash, const Blob& token, size_t socket_id, const Query& query)
+Dht::onListen(Sp<Node> node, const InfoHash& hash, const Blob& token, size_t socket_id, const Query& query, int version)
 {
     if (not hash) {
         if (logger_)
@@ -2327,7 +2348,7 @@ Dht::onListen(Sp<Node> node, const InfoHash& hash, const Blob& token, size_t soc
         throw net::DhtProtocolException {net::DhtProtocolException::UNAUTHORIZED, net::DhtProtocolException::LISTEN_WRONG_TOKEN};
     }
     Query q = query;
-    storageAddListener(hash, node, socket_id, std::move(q));
+    storageAddListener(hash, node, socket_id, std::move(q), version);
     return {};
 }
 
@@ -2466,7 +2487,7 @@ Dht::storageRefresh(const InfoHash& id, Value::Id vid)
                             id.toString().c_str(),
                             node_listeners.first->toString().c_str());
                     Blob ntoken = makeToken(node_listeners.first->getAddr(), false);
-                    network_engine.tellListenerRefreshed(node_listeners.first, l.first, id, ntoken, ids);
+                    network_engine.tellListenerRefreshed(node_listeners.first, l.first, id, ntoken, ids, l.second.version);
                 }
             }
         }
@@ -2490,12 +2511,24 @@ Dht::onAnnounceDone(const Sp<Node>& node, net::RequestAnswer& answer, Sp<Search>
 }
 
 
+struct DhtState {
+    unsigned v {1};
+    InfoHash id;
+    std::vector<NodeExport> nodes;
+    std::vector<ValuesExport> values;
+
+    MSGPACK_DEFINE_MAP(v, id, nodes, values)
+};
+
 void
 Dht::saveState(const std::string& path) const
 {
+    DhtState state;
+    state.id = myid;
+    state.nodes = exportNodes();
+    state.values = exportValues();
     std::ofstream file(path);
-    msgpack::pack(file, exportNodes());
-    msgpack::pack(file, exportValues());
+    msgpack::pack(file, state);    
 }
 
 void
@@ -2521,19 +2554,16 @@ Dht::loadState(const std::string& path)
         // Import nodes
         msgpack::object_handle oh;
         if (pac.next(oh)) {
-            {
-                auto imported_nodes = oh.get().as<std::vector<NodeExport>>();
-                if (logger_)
-                    logger_->d("Importing %zu nodes", imported_nodes.size());
-                for (const auto& node : imported_nodes)
-                    insertNode(node);
-            }
-            if (pac.next(oh)) {
-                auto imported_values = oh.get().as<std::vector<ValuesExport>>();
-                if (logger_)
-                    logger_->d("Importing %zu values", imported_values.size());
-                importValues(imported_values);
-            }
+            auto state = oh.get().as<DhtState>();
+            if (logger_)
+                logger_->d("Importing %zu nodes", state.nodes.size());
+            if (state.id)
+                myid = state.id;
+            std::vector<Sp<Node>> tmpNodes;
+            tmpNodes.reserve(state.nodes.size());
+            for (const auto& node : state.nodes)
+                tmpNodes.emplace_back(network_engine.insertNode(node.id, SockAddr(node.ss, node.sslen)));
+            importValues(state.values);
         }
     } catch (const std::exception& e) {
         if (logger_)

src/dht_proxy_client.cpp

@@ -98,7 +98,7 @@ getRandomSessionId(size_t length = 8) {
     static constexpr const char chars[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!#$%&()*+,./:;<=>?@[]^_`{|}~";
     std::string str(length, 0);
     crypto::random_device rdev;
-    std::uniform_int_distribution<> dist(0, (sizeof(chars)/sizeof(char)) - 1);
+    std::uniform_int_distribution<> dist(0, (sizeof(chars)/sizeof(char)) - 2);
     std::generate_n( str.begin(), length, [&]{ return chars[dist(rdev)]; } );
     return str;
 }
@@ -683,7 +683,7 @@ DhtProxyClient::onProxyInfos(const Json::Value& proxyInfos, const sa_family_t fa
 {
     if (isDestroying_)
         return;
-    std::lock_guard<std::mutex> l(lockCurrentProxyInfos_);
+    std::unique_lock<std::mutex> l(lockCurrentProxyInfos_);
     auto oldStatus = std::max(statusIpv4_, statusIpv6_);
     auto& status = family == AF_INET ? statusIpv4_ : statusIpv6_;
     if (not proxyInfos.isMember("node_id")) {
@@ -720,7 +720,7 @@ DhtProxyClient::onProxyInfos(const Json::Value& proxyInfos, const sa_family_t fa
     if (newStatus == NodeStatus::Connected) {
         if (oldStatus == NodeStatus::Disconnected || oldStatus == NodeStatus::Connecting) {
             listenerRestartTimer_->expires_at(std::chrono::steady_clock::now());
-            listenerRestartTimer_->async_wait(std::bind(&DhtProxyClient::restartListeners, this));
+            listenerRestartTimer_->async_wait(std::bind(&DhtProxyClient::restartListeners, this, std::placeholders::_1));
         }
         nextProxyConfirmationTimer_->expires_at(std::chrono::steady_clock::now() + std::chrono::minutes(15));
         nextProxyConfirmationTimer_->async_wait(std::bind(&DhtProxyClient::handleProxyConfirm, this, std::placeholders::_1));
@@ -729,6 +729,7 @@ DhtProxyClient::onProxyInfos(const Json::Value& proxyInfos, const sa_family_t fa
         nextProxyConfirmationTimer_->expires_at(std::chrono::steady_clock::now() + std::chrono::minutes(1));
         nextProxyConfirmationTimer_->async_wait(std::bind(&DhtProxyClient::handleProxyConfirm, this, std::placeholders::_1));
     }
+    l.unlock();
     loopSignal_();
 }
 
@@ -1078,8 +1079,16 @@ DhtProxyClient::getConnectivityStatus()
 }
 
 void
-DhtProxyClient::restartListeners()
+DhtProxyClient::restartListeners(const asio::error_code &ec)
 {
+    if (ec == asio::error::operation_aborted)
+        return;
+    else if (ec){
+        if (logger_)
+            logger_->e("[proxy:client] restart error: %s", ec.message().c_str());
+        return;
+    }
+
     if (isDestroying_)
         return;
     if (logger_)
@@ -1153,6 +1162,7 @@ DhtProxyClient::pushNotificationReceived(const std::map<std::string, std::string
         statusIpv4_ = NodeStatus::Connected;
         statusIpv6_ = NodeStatus::Connected;
     }
+    auto launchLoop = false;
     try {
         auto sessionId = notification.find("s");
         if (sessionId != notification.end() and sessionId->second != pushSessionId_) {
@@ -1229,7 +1239,7 @@ DhtProxyClient::pushNotificationReceived(const std::map<std::string, std::string
                                 opstate->stop = true;
                         });
                     }
-                    loopSignal_();
+                    launchLoop = true;
                 }
             }
         }
@@ -1237,6 +1247,8 @@ DhtProxyClient::pushNotificationReceived(const std::map<std::string, std::string
         if (logger_)
             logger_->e("[proxy:client] [push] receive error: %s", e.what());
     }
+    if (launchLoop)
+        loopSignal_();
 #else
     (void) notification;
 #endif

src/dht_proxy_server.cpp

@@ -34,6 +34,7 @@
 #include <functional>
 #include <limits>
 #include <iostream>
+#include <fstream>
 
 using namespace std::placeholders;
 using namespace std::chrono_literals;
@@ -173,26 +174,73 @@ struct DhtProxyServer::RestRouterTraits : public restinio::default_traits_t
     using connection_state_listener_t = ConnectionListener;
 };
 
-DhtProxyServer::DhtProxyServer(
-    crypto::Identity identity,
-    std::shared_ptr<DhtRunner> dht, in_port_t port, const std::string& pushServer,
-    std::shared_ptr<Logger> logger
+void
+DhtProxyServer::PermanentPut::msgpack_unpack(const msgpack::object& o)
+{
+    if (auto cid = findMapValue(o, "cid")) {
+        clientId = cid->as<std::string>();
+    }
+    if (auto exp = findMapValue(o, "exp")) {
+        expiration = from_time_t(exp->as<time_t>());
+    }
+    if (auto token = findMapValue(o, "token")) {
+        pushToken = token->as<std::string>();
+    }
+    if (auto sid = findMapValue(o, "sid")) {
+        if (not sessionCtx)
+            sessionCtx = std::make_shared<PushSessionContext>(sid->as<std::string>());
+        else
+            sessionCtx->sessionId = sid->as<std::string>();
+    }
+    if (auto t = findMapValue(o, "t")) {
+        type = t->as<PushType>();
+    }
+    if (auto val = findMapValue(o, "value")) {
+        value = std::make_shared<dht::Value>(*val);
+    }
+}
+
+#ifdef OPENDHT_PUSH_NOTIFICATIONS
+void
+DhtProxyServer::Listener::msgpack_unpack(const msgpack::object& o)
+{
+    if (auto cid = findMapValue(o, "cid")) {
+        clientId = cid->as<std::string>();
+    }
+    if (auto exp = findMapValue(o, "exp")) {
+        expiration = from_time_t(exp->as<time_t>());
+    }
+    if (auto sid = findMapValue(o, "sid")) {
+        if (not sessionCtx)
+            sessionCtx = std::make_shared<PushSessionContext>(sid->as<std::string>());
+        else
+            sessionCtx->sessionId = sid->as<std::string>();
+    }
+    if (auto t = findMapValue(o, "t")) {
+        type = t->as<PushType>();
+    }
+}
+#endif
+
+DhtProxyServer::DhtProxyServer(const std::shared_ptr<DhtRunner>& dht,
+        const ProxyServerConfig& config,
+        const std::shared_ptr<dht::Logger>& logger
 )
     :   ioContext_(std::make_shared<asio::io_context>()),
-        dht_(dht), logger_(logger),
+        dht_(dht), persistPath_(config.persistStatePath), logger_(logger),
         printStatsTimer_(std::make_unique<asio::steady_timer>(*ioContext_, 3s)),
         connListener_(std::make_shared<ConnectionListener>(std::bind(&DhtProxyServer::onConnectionClosed, this, std::placeholders::_1))),
-        pushServer_(pushServer)
+        pushServer_(config.pushServer)
 {
     if (not dht_)
         throw std::invalid_argument("A DHT instance must be provided");
 
     if (logger_)
-        logger_->d("[proxy:server] [init] running on %i", port);
-    if (not pushServer.empty()){
+        logger_->d("[proxy:server] [init] running on %i", config.port);
+    if (not pushServer_.empty()){
 #ifdef OPENDHT_PUSH_NOTIFICATIONS
         if (logger_)
-            logger_->d("[proxy:server] [init] using push server %s", pushServer.c_str());
+            logger_->d("[proxy:server] [init] using push server %s", pushServer_.c_str());
 #else
         if (logger_)
             logger_->e("[proxy:server] [init] opendht built without push notification support");
@@ -202,9 +250,9 @@ DhtProxyServer::DhtProxyServer(
     jsonBuilder_["commentStyle"] = "None";
     jsonBuilder_["indentation"] = "";
 
-    if (!pushServer.empty()){
+    if (!pushServer_.empty()){
         // no host delim, assume port only
-        if (pushServer.find(":") == std::string::npos)
+        if (pushServer_.find(":") == std::string::npos)
             pushServer_ =  "localhost:" + pushServer_;
         // define http request destination for push notifications
         pushHostPort_ = splitPort(pushServer_);
@@ -212,7 +260,7 @@ DhtProxyServer::DhtProxyServer(
             logger_->d("Using push server for notifications: %s:%s", pushHostPort_.first.c_str(),
                                                                      pushHostPort_.second.c_str());
     }
-    if (identity.first and identity.second) {
+    if (config.identity.first and config.identity.second) {
         asio::error_code ec;
         // define tls context
         asio::ssl::context tls_context { asio::ssl::context::sslv23 };
@@ -226,13 +274,13 @@ DhtProxyServer::DhtProxyServer(
         SSL_CTX_set_options(tls_context.native_handle(), SSL_OP_NO_RENEGOTIATION); // CVE-2009-3555
 #endif
         // node private key
-        auto key = identity.first->serialize();
+        auto key = config.identity.first->serialize();
         tls_context.use_private_key(asio::const_buffer{key.data(), key.size()},
                                     asio::ssl::context::file_format::pem, ec);
         if (ec)
             throw std::runtime_error("Error setting node's private key: " + ec.message());
         // certificate chain
-        auto certchain = identity.second->toString(true/*chain*/);
+        auto certchain = config.identity.second->toString(true/*chain*/);
         tls_context.use_certificate_chain(asio::const_buffer{certchain.data(), certchain.size()}, ec);
         if (ec)
             throw std::runtime_error("Error setting certificate chain: " + ec.message());
@@ -241,7 +289,7 @@ DhtProxyServer::DhtProxyServer(
         // build http server
         auto settings = restinio::run_on_this_thread_settings_t<RestRouterTraitsTls>();
         addServerSettings(settings);
-        settings.port(port);
+        settings.port(config.port);
         settings.tls_context(std::move(tls_context));
         httpsServer_ = std::make_unique<restinio::http_server_t<RestRouterTraitsTls>>(
             ioContext_,
@@ -258,7 +306,7 @@ DhtProxyServer::DhtProxyServer(
     else {
         auto settings = restinio::run_on_this_thread_settings_t<RestRouterTraits>();
         addServerSettings(settings);
-        settings.port(port);
+        settings.port(config.port);
         httpServer_ = std::make_unique<restinio::http_server_t<RestRouterTraits>>(
             ioContext_,
             std::forward<restinio::run_on_this_thread_settings_t<RestRouterTraits>>(std::move(settings))
@@ -274,8 +322,158 @@ DhtProxyServer::DhtProxyServer(
     dht->forwardAllMessages(true);
     updateStats();
     printStatsTimer_->async_wait(std::bind(&DhtProxyServer::handlePrintStats, this, std::placeholders::_1));
+
+    if (not persistPath_.empty()) {
+        try {
+            std::ifstream stateFile(persistPath_, std::ios::binary | std::ios::ate);
+            if (stateFile) {
+                std::streamsize size = stateFile.tellg();
+                stateFile.seekg(0, std::ios::beg);
+                if (logger_)
+                    logger_->d("Loading proxy state from %.*s (%td bytes)", (int)persistPath_.size(), persistPath_.c_str(), size);
+                loadState(stateFile, size);
+            }
+        } catch (const std::exception& e) {
+            if (logger_)
+                logger_->e("Error loading state from file: %s", e.what());
+        }
+    }
 }
 
+template <typename Os>
+void
+DhtProxyServer::saveState(Os& stream) {
+    msgpack::packer<Os> pk(&stream);
+    pk.pack_map(2);
+    {
+        std::lock_guard<std::mutex> lock(lockSearchPuts_);
+        pk.pack("puts");
+        pk.pack(puts_);
+    }
+#ifdef OPENDHT_PUSH_NOTIFICATIONS
+    {
+        std::lock_guard<std::mutex> lock(lockListener_);
+        pk.pack("pushListeners");
+        pk.pack(pushListeners_);
+    }
+#endif
+}
+
+template <typename Is>
+void
+DhtProxyServer::loadState(Is& is, size_t size) {
+    msgpack::unpacker pac;
+    pac.reserve_buffer(size);
+    if (is.read(pac.buffer(), size)) {
+        pac.buffer_consumed(size);
+
+        msgpack::object_handle oh;
+        while (pac.next(oh)) {
+            if (oh.get().type != msgpack::type::MAP)
+                continue;
+            if (auto puts = findMapValue(oh.get(), "puts")) {
+                std::lock_guard<std::mutex> lock(lockSearchPuts_);
+                puts_ = puts->as<decltype(puts_)>();
+                if (logger_)
+                    logger_->d("Loading %zu persistent puts", puts_.size());
+                for (auto& put : puts_) {
+                    for (auto& pput : put.second.puts) {
+                        pput.second.expireTimer = std::make_unique<asio::steady_timer>(io_context(), pput.second.expiration);
+                        pput.second.expireTimer->async_wait(std::bind(&DhtProxyServer::handleCancelPermamentPut, this,
+                                                std::placeholders::_1, put.first, pput.first));
+#ifdef OPENDHT_PUSH_NOTIFICATIONS
+                        if (not pput.second.pushToken.empty()) {
+                            auto jsonProvider = [infoHash=put.first.toString(), clientId=pput.second.clientId, vid = pput.first, sessionCtx = pput.second.sessionCtx](){
+                                Json::Value json;
+                                json["timeout"] = infoHash;
+                                json["to"] = clientId;
+                                json["vid"] = std::to_string(vid);
+                                if (sessionCtx) {
+                                    std::lock_guard<std::mutex> l(sessionCtx->lock);
+                                    json["s"] = sessionCtx->sessionId;
+                                }
+                                return json;
+                            };
+                            pput.second.expireNotifyTimer = std::make_unique<asio::steady_timer>(io_context(), pput.second.expiration - proxy::OP_MARGIN);
+                            pput.second.expireNotifyTimer->async_wait(std::bind(
+                                &DhtProxyServer::handleNotifyPushListenExpire, this,
+                                std::placeholders::_1, pput.second.pushToken, std::move(jsonProvider), pput.second.type));
+                        }
+#endif
+                        dht_->put(put.first, pput.second.value, DoneCallbackSimple{}, time_point::max(), true);
+                    }
+                }
+            } else {
+                if (logger_)
+                    logger_->d("No persistent puts in state");
+            }
+#ifdef OPENDHT_PUSH_NOTIFICATIONS
+            if (auto listeners = findMapValue(oh.get(), "pushListeners")) {
+                std::lock_guard<std::mutex> lock(lockListener_);
+                pushListeners_ = listeners->as<decltype(pushListeners_)>();
+                if (logger_)
+                    logger_->d("Loading %zu push listeners", pushListeners_.size());
+                for (auto& pushListener : pushListeners_) {
+                    for (auto& listeners : pushListener.second.listeners) {
+                        for (auto& listener : listeners.second) {
+                            listener.internalToken = dht_->listen(listeners.first,
+                                [this, infoHash=listeners.first, pushToken=pushListener.first, type=listener.type, clientId=listener.clientId, sessionCtx = listener.sessionCtx]
+                                (const std::vector<std::shared_ptr<Value>>& values, bool expired) {
+                                    // Build message content
+                                    Json::Value json;
+                                    json["key"] = infoHash.toString();
+                                    json["to"] = clientId;
+                                    json["t"] = Json::Value::Int64(std::chrono::duration_cast<std::chrono::milliseconds>(system_clock::now().time_since_epoch()).count());
+                                    {
+                                        std::lock_guard<std::mutex> l(sessionCtx->lock);
+                                        json["s"] = sessionCtx->sessionId;
+                                    }
+                                    if (expired and values.size() < 2){
+                                        std::stringstream ss;
+                                        for(size_t i = 0; i < values.size(); ++i){
+                                            if(i != 0) ss << ",";
+                                            ss << values[i]->id;
+                                        }
+                                        json["exp"] = ss.str();
+                                    }
+                                    auto maxPrio = 1000u;
+                                    for (const auto& v : values)
+                                        maxPrio = std::min(maxPrio, v->priority);
+                                    sendPushNotification(pushToken, std::move(json), type, !expired and maxPrio == 0);
+                                    return true;
+                                }
+                            );
+                            // expire notify
+                            listener.expireNotifyTimer = std::make_unique<asio::steady_timer>(io_context(), listener.expiration - proxy::OP_MARGIN);
+                            auto jsonProvider = [infoHash = listeners.first.toString(), clientId = listener.clientId, sessionCtx = listener.sessionCtx](){
+                                Json::Value json;
+                                json["timeout"] = infoHash;
+                                json["to"] = clientId;
+                                std::lock_guard<std::mutex> l(sessionCtx->lock);
+                                json["s"] = sessionCtx->sessionId;
+                                return json;
+                            };
+                            listener.expireNotifyTimer->async_wait(std::bind(&DhtProxyServer::handleNotifyPushListenExpire, this,
+                                                                std::placeholders::_1, pushListener.first, std::move(jsonProvider), listener.type));
+                            // cancel push listen
+                            listener.expireTimer = std::make_unique<asio::steady_timer>(io_context(), listener.expiration);
+                            listener.expireTimer->async_wait(std::bind(&DhtProxyServer::handleCancelPushListen, this,
+                                                            std::placeholders::_1, pushListener.first, listeners.first, listener.clientId));
+                        }
+                    }
+                }
+            } else {
+                if (logger_)
+                    logger_->d("No push listeners in state");
+            }
+#endif
+        }
+        if (logger_)
+            logger_->d("loading ended");
+    }
+}
+
+
 asio::io_context&
 DhtProxyServer::io_context() const
 {
@@ -284,6 +482,12 @@ DhtProxyServer::io_context() const
 
 DhtProxyServer::~DhtProxyServer()
 {
+    if (not persistPath_.empty()) {
+        if (logger_)
+            logger_->d("Saving proxy state to %.*s", (int)persistPath_.size(), persistPath_.c_str());
+        std::ofstream stateFile(persistPath_, std::ios::binary);
+        saveState(stateFile);
+    }
     if (dht_) {
         std::lock_guard<std::mutex> lock(lockListener_);
         for (auto& l : listeners_) {
@@ -359,6 +563,10 @@ DhtProxyServer::updateStats(std::shared_ptr<NodeInfo> info) const
 #ifdef OPENDHT_PUSH_NOTIFICATIONS
     stats.pushListenersCount = pushListeners_.size();
 #endif
+    stats.totalPermanentPuts = 0;
+    std::for_each(puts_.begin(), puts_.end(), [&stats](const auto& put) {
+        stats.totalPermanentPuts += put.second.puts.size();
+    });
     stats.putCount = puts_.size();
     stats.listenCount = listeners_.size();
     stats.nodeInfo = std::move(info);
@@ -585,12 +793,11 @@ DhtProxyServer::subscribe(restinio::request_handle_t request,
                           restinio::router::route_params_t params)
 {
     requestNum_++;
-
-    InfoHash infoHash(params["hash"].to_string());
-    if (!infoHash)
-        infoHash = InfoHash::get(params["hash"].to_string());
-
     try {
+        InfoHash infoHash(params["hash"].to_string());
+        if (!infoHash)
+            infoHash = InfoHash::get(params["hash"].to_string());
+
         std::string err;
         Json::Value r;
         auto* char_data = reinterpret_cast<const char*>(request->body().data());
@@ -607,117 +814,115 @@ DhtProxyServer::subscribe(restinio::request_handle_t request,
             response.set_body(RESP_MSG_NO_TOKEN);
             return response.done();
         }
-        auto isAndroid = root["platform"].asString() == "android";
+        auto type = root["platform"].asString() == "android" ? PushType::Android : PushType::iOS;
         auto clientId = root["client_id"].asString();
         auto sessionId = root["session_id"].asString();
 
         if (logger_)
             logger_->d("[proxy:server] [subscribe %s] [client %s] [session %s]", infoHash.toString().c_str(), clientId.c_str(), sessionId.c_str());
-        // ================ Search for existing listener ===================
-        // start the timer
-        auto timeout = std::chrono::steady_clock::now() + proxy::OP_TIMEOUT;
-        std::lock_guard<std::mutex> lock(lockPushListeners_);
 
         // Insert new or return existing push listeners of a token
+        std::lock_guard<std::mutex> lock(lockPushListeners_);
         auto& pushListener = pushListeners_[pushToken];
         auto& pushListeners = pushListener.listeners[infoHash];
 
-        for (auto &listener: pushListeners) {
-            // Found -> Resubscribe
-            if (listener.clientId == clientId) {
-                if (logger_)
-                    logger_->d("[proxy:server] [subscribe] found [client %s]", listener.clientId.c_str());
-                // Reset timers
-                listener.expireTimer->expires_at(timeout);
-                listener.expireNotifyTimer->expires_at(timeout - proxy::OP_MARGIN);
-                {
-                    std::lock_guard<std::mutex> l(listener.sessionCtx->lock);
-                    listener.sessionCtx->sessionId = sessionId;
-                }
-                // Send response header
-                auto response = std::make_shared<ResponseByPartsBuilder>(
-                    initHttpResponse(request->create_response<ResponseByParts>()));
-                response->flush();
-                if (!root["refresh"].asBool()) {
-                    // No Refresh
-                    dht_->get(infoHash, [this, response](const Sp<Value>& value){
-                        auto output = Json::writeString(jsonBuilder_, value->toJson()) + "\n";
-                        response->append_chunk(output);
-                        response->flush();
-                        return true;
-                    },
-                    [response] (bool){
-                        response->done();
-                    });
-                } else {
-                    // Refresh
-                    response->append_chunk("{}\n");
-                    response->done();
-                }
-                return restinio::request_handling_status_t::accepted;
-            }
+        auto listIt = std::find_if(pushListeners.begin(), pushListeners.end(), [&](const Listener& l) {
+            return l.clientId == clientId;
+        });
+        bool newListener = listIt == pushListeners.end();
+        if (newListener) {
+            pushListeners.emplace_back(Listener{});
+            listIt = std::prev(pushListeners.end());
+            listIt->clientId = clientId;
+            listIt->sessionCtx = std::make_shared<PushSessionContext>(sessionId);
+        } else {
+            std::lock_guard<std::mutex> l(listIt->sessionCtx->lock);
+            listIt->sessionCtx->sessionId = sessionId;
         }
-        // =========== No existing listener for an infoHash ============
-        // Add new listener to list of listeners
-        pushListeners.emplace_back(Listener{});
-        auto &listener = pushListeners.back();
-        listener.clientId = clientId;
-        listener.sessionCtx = std::make_shared<PushSessionContext>();
-        listener.sessionCtx->sessionId = sessionId;
+        auto& listener = *listIt;
 
-        // Add listen on dht
-        listener.internalToken = dht_->listen(infoHash,
-            [this, infoHash, pushToken, isAndroid, clientId, sessionCtx = listener.sessionCtx]
-            (const std::vector<std::shared_ptr<Value>>& values, bool expired){
-                // Build message content
-                Json::Value json;
-                json["key"] = infoHash.toString();
-                json["to"] = clientId;
-                json["t"] = Json::Value::Int64(std::chrono::duration_cast<std::chrono::milliseconds>(system_clock::now().time_since_epoch()).count());
-                {
-                    std::lock_guard<std::mutex> l(sessionCtx->lock);
-                    json["s"] = sessionCtx->sessionId;
-                }
-                if (expired and values.size() < 2){
-                    std::stringstream ss;
-                    for(size_t i = 0; i < values.size(); ++i){
-                        if(i != 0) ss << ",";
-                        ss << values[i]->id;
-                    }
-                    json["exp"] = ss.str();
-                }
-                auto maxPrio = 1000u;
-                for (const auto& v : values)
-                    maxPrio = std::min(maxPrio, v->priority);
-                sendPushNotification(pushToken, std::move(json), isAndroid, !expired and maxPrio == 0);
-                return true;
-            }
-        );
-        // expire notify
-        if (!listener.expireNotifyTimer)
-            listener.expireNotifyTimer = std::make_unique<asio::steady_timer>(io_context(), timeout - proxy::OP_MARGIN);
-        else
+        // Expiration
+        auto timeout = std::chrono::steady_clock::now() + proxy::OP_TIMEOUT;
+        listener.expiration = timeout;
+        listener.type = type;
+        if (listener.expireNotifyTimer)
             listener.expireNotifyTimer->expires_at(timeout - proxy::OP_MARGIN);
-        auto jsonProvider = [infoHash, clientId, sessionCtx = listener.sessionCtx](){
+        else
+            listener.expireNotifyTimer = std::make_unique<asio::steady_timer>(io_context(), timeout - proxy::OP_MARGIN);
+        auto jsonProvider = [h=infoHash.toString(), clientId, sessionCtx = listener.sessionCtx](){
             Json::Value json;
-            json["timeout"] = infoHash.toString();
+            json["timeout"] = h;
             json["to"] = clientId;
             std::lock_guard<std::mutex> l(sessionCtx->lock);
             json["s"] = sessionCtx->sessionId;
             return json;
         };
         listener.expireNotifyTimer->async_wait(std::bind(&DhtProxyServer::handleNotifyPushListenExpire, this,
-                                               std::placeholders::_1, pushToken, std::move(jsonProvider), isAndroid));
-        // cancel push listen
+                                               std::placeholders::_1, pushToken, std::move(jsonProvider), listener.type));
         if (!listener.expireTimer)
             listener.expireTimer = std::make_unique<asio::steady_timer>(io_context(), timeout);
         else
             listener.expireTimer->expires_at(timeout);
         listener.expireTimer->async_wait(std::bind(&DhtProxyServer::handleCancelPushListen, this,
-                                         std::placeholders::_1, pushToken, infoHash, clientId));
-        auto response = initHttpResponse(request->create_response());
-        response.set_body("{}\n");
-        return response.done();
+                                        std::placeholders::_1, pushToken, infoHash, clientId));
+
+        // Send response
+        if (not newListener) {
+            if (logger_)
+                logger_->d("[proxy:server] [subscribe] found [client %s]", listener.clientId.c_str());
+            // Send response header
+            auto response = std::make_shared<ResponseByPartsBuilder>(initHttpResponse(request->create_response<ResponseByParts>()));
+            response->flush();
+            if (!root["refresh"].asBool()) {
+                // No Refresh
+                dht_->get(infoHash, [this, response](const Sp<Value>& value){
+                    auto output = Json::writeString(jsonBuilder_, value->toJson()) + "\n";
+                    response->append_chunk(output);
+                    response->flush();
+                    return true;
+                },
+                [response] (bool){
+                    response->done();
+                });
+            } else {
+                // Refresh
+                response->append_chunk("{}\n");
+                return response->done();
+            }
+        } else {
+            // =========== No existing listener for an infoHash ============
+            // Add listen on dht
+            listener.internalToken = dht_->listen(infoHash,
+                [this, infoHash, pushToken, type, clientId, sessionCtx = listener.sessionCtx]
+                (const std::vector<std::shared_ptr<Value>>& values, bool expired){
+                    // Build message content
+                    Json::Value json;
+                    json["key"] = infoHash.toString();
+                    json["to"] = clientId;
+                    json["t"] = Json::Value::Int64(std::chrono::duration_cast<std::chrono::milliseconds>(system_clock::now().time_since_epoch()).count());
+                    {
+                        std::lock_guard<std::mutex> l(sessionCtx->lock);
+                        json["s"] = sessionCtx->sessionId;
+                    }
+                    if (expired and values.size() < 2){
+                        std::stringstream ss;
+                        for(size_t i = 0; i < values.size(); ++i){
+                            if(i != 0) ss << ",";
+                            ss << values[i]->id;
+                        }
+                        json["exp"] = ss.str();
+                    }
+                    auto maxPrio = 1000u;
+                    for (const auto& v : values)
+                        maxPrio = std::min(maxPrio, v->priority);
+                    sendPushNotification(pushToken, std::move(json), type, !expired and maxPrio == 0);
+                    return true;
+                }
+            );
+            auto response = initHttpResponse(request->create_response());
+            response.set_body("{}\n");
+            return response.done();
+        }
     }
     catch (...) {
         return serverError(*request);
@@ -766,7 +971,7 @@ DhtProxyServer::unsubscribe(restinio::request_handle_t request,
 
 void
 DhtProxyServer::handleNotifyPushListenExpire(const asio::error_code &ec, const std::string pushToken,
-                                             std::function<Json::Value()> jsonProvider, const bool isAndroid)
+                                             std::function<Json::Value()> jsonProvider, PushType type)
 {
     if (ec == asio::error::operation_aborted)
         return;
@@ -776,7 +981,7 @@ DhtProxyServer::handleNotifyPushListenExpire(const asio::error_code &ec, const s
     }
     if (logger_)
         logger_->d("[proxy:server] [subscribe] sending put refresh to %s token", pushToken.c_str());
-    sendPushNotification(pushToken, jsonProvider(), isAndroid, false);
+    sendPushNotification(pushToken, jsonProvider(), type, false);
 }
 
 void
@@ -818,7 +1023,7 @@ DhtProxyServer::handleCancelPushListen(const asio::error_code &ec, const std::st
 }
 
 void
-DhtProxyServer::sendPushNotification(const std::string& token, Json::Value&& json, bool isAndroid, bool highPriority)
+DhtProxyServer::sendPushNotification(const std::string& token, Json::Value&& json, PushType type, bool highPriority)
 {
     if (pushServer_.empty())
         return;
@@ -840,7 +1045,7 @@ DhtProxyServer::sendPushNotification(const std::string& token, Json::Value&& jso
         Json::Value tokens(Json::arrayValue);
         tokens[0] = token;
         notification["tokens"] = std::move(tokens);
-        notification["platform"] = isAndroid ? 2 : 1;
+        notification["platform"] = type == PushType::Android ? 2 : 1;
         notification["data"] = std::move(json);
         notification["priority"] = highPriority ? "high" : "normal";
         notification["time_to_live"] = 600;
@@ -889,6 +1094,7 @@ DhtProxyServer::handleCancelPermamentPut(const asio::error_code &ec, const InfoH
     }
     if (logger_)
         logger_->d("[proxy:server] [put %s] cancel permament put %i", key.toString().c_str(), vid);
+    std::lock_guard<std::mutex> lock(lockSearchPuts_);
     auto sPuts = puts_.find(key);
     if (sPuts == puts_.end())
         return;
@@ -898,6 +1104,8 @@ DhtProxyServer::handleCancelPermamentPut(const asio::error_code &ec, const InfoH
         return;
     if (dht_)
         dht_->cancelPut(key, vid);
+    if (put->second.expireTimer)
+        put->second.expireTimer->cancel();
     if (put->second.expireNotifyTimer)
         put->second.expireNotifyTimer->cancel();
     sPutsMap.erase(put);
@@ -941,13 +1149,13 @@ DhtProxyServer::put(restinio::request_handle_t request,
                     platform = pVal["platform"].asString();
                     sessionId = pVal["session_id"].asString();
                 }
-                std::unique_lock<std::mutex> lock(lockSearchPuts_);
+                std::lock_guard<std::mutex> lock(lockSearchPuts_);
                 auto timeout = std::chrono::steady_clock::now() + proxy::OP_TIMEOUT;
                 auto& sPuts = puts_[infoHash];
                 if (value->id == Value::INVALID_ID) {
                     for (auto& pp : sPuts.puts) {
-                        if (pp.second.pushToken == pushToken 
-                            and pp.second.clientId == clientId 
+                        if (pp.second.pushToken == pushToken
+                            and pp.second.clientId == clientId
                             and pp.second.value->contentEquals(*value))
                         {
                             pp.second.expireTimer->expires_at(timeout);
@@ -955,32 +1163,36 @@ DhtProxyServer::put(restinio::request_handle_t request,
                                                         std::placeholders::_1, infoHash, pp.second.value->id));
                             if (not sessionId.empty()) {
                                 if (not pp.second.sessionCtx)
-                                    pp.second.sessionCtx = std::make_shared<PushSessionContext>();
-                                std::lock_guard<std::mutex> l(pp.second.sessionCtx->lock);
-                                pp.second.sessionCtx->sessionId = sessionId;
+                                    pp.second.sessionCtx = std::make_shared<PushSessionContext>(sessionId);
+                                else {
+                                    std::lock_guard<std::mutex> l(pp.second.sessionCtx->lock);
+                                    pp.second.sessionCtx->sessionId = sessionId;
+                                }
                             }
                             auto response = initHttpResponse(request->create_response());
                             response.append_body(Json::writeString(jsonBuilder_, value->toJson()) + "\n");
                             return response.done();
                         }
                     }
+                    value->id = std::uniform_int_distribution<Value::Id>{1}(rd);
                 }
 
                 auto vid = value->id;
                 auto& pput = sPuts.puts[vid];
                 pput.value = value;
+                pput.expiration = timeout;
                 if (not pput.expireTimer) {
                     auto &ctx = io_context();
                     // cancel permanent put
                     pput.expireTimer = std::make_unique<asio::steady_timer>(ctx, timeout);
 #ifdef OPENDHT_PUSH_NOTIFICATIONS
                     if (not pushToken.empty()){
+                        bool isAndroid = platform == "android";
                         pput.pushToken = pushToken;
                         pput.clientId = clientId;
-                        pput.sessionCtx = std::make_shared<PushSessionContext>();
-                        pput.sessionCtx->sessionId = sessionId;
+                        pput.type = isAndroid ? PushType::Android : PushType::iOS;
+                        pput.sessionCtx = std::make_shared<PushSessionContext>(sessionId);
                         // notify push listen expire
-                        bool isAndroid = platform == "android";
                         auto jsonProvider = [infoHash, clientId, vid, sessionCtx = pput.sessionCtx](){
                             Json::Value json;
                             json["timeout"] = infoHash.toString();
@@ -997,15 +1209,17 @@ DhtProxyServer::put(restinio::request_handle_t request,
                             pput.expireNotifyTimer->expires_at(timeout - proxy::OP_MARGIN);
                         pput.expireNotifyTimer->async_wait(std::bind(
                             &DhtProxyServer::handleNotifyPushListenExpire, this,
-                            std::placeholders::_1, pushToken, std::move(jsonProvider), isAndroid));
+                            std::placeholders::_1, pushToken, std::move(jsonProvider), pput.type));
                     }
 #endif
                 } else {
                     if (not sessionId.empty()) {
                         if (not pput.sessionCtx)
-                            pput.sessionCtx = std::make_shared<PushSessionContext>();
-                        std::lock_guard<std::mutex> l(pput.sessionCtx->lock);
-                        pput.sessionCtx->sessionId = sessionId;
+                            pput.sessionCtx = std::make_shared<PushSessionContext>(sessionId);
+                        else {
+                            std::lock_guard<std::mutex> l(pput.sessionCtx->lock);
+                            pput.sessionCtx->sessionId = sessionId;
+                        }
                     }
                     pput.expireTimer->expires_at(timeout);
                     if (pput.expireNotifyTimer)

src/dhtrunner.cpp

@@ -32,6 +32,8 @@
 #include "dht_proxy_client.h"
 #endif
 
+#include <fstream>
+
 namespace dht {
 
 constexpr std::chrono::seconds DhtRunner::BOOTSTRAP_PERIOD;
@@ -90,16 +92,46 @@ DhtRunner::run(const char* ip4, const char* ip6, const char* service, const Conf
 {
     auto res4 = SockAddr::resolve(ip4, service);
     auto res6 = SockAddr::resolve(ip6, service);
-    run(res4.empty() ? SockAddr() : res4.front(),
-        res6.empty() ? SockAddr() : res6.front(), config, std::move(context));
+    if (res4.empty())
+        res4.emplace_back();
+    if (res6.empty())
+        res6.emplace_back();
+    run(res4.front(), res6.front(), config, std::move(context));
 }
 
 void
-DhtRunner::run(const SockAddr& local4, const SockAddr& local6, const Config& config, Context&& context)
+DhtRunner::run(SockAddr& local4, SockAddr& local6, const Config& config, Context&& context)
 {
     if (running == State::Idle) {
+        auto state_path = config.dht_config.node_config.persist_path;
+        if (not state_path.empty()) {
+            state_path += "_port.txt";
+            std::ifstream inConfig(state_path);
+            if (inConfig.is_open()) {
+                in_port_t port;
+                if (inConfig >> port) {
+                    if (context.logger)
+                        context.logger->d("[runner %p] Using IPv4 port %hu from saved configuration", this, port);
+                    if (local4.getPort() == 0)
+                        local4.setPort(port);
+                }
+                if (inConfig >> port) {
+                    if (context.logger)
+                        context.logger->d("[runner %p] Using IPv6 port %hu from saved configuration", this, port);
+                    if (local6.getPort() == 0)
+                        local6.setPort(port);
+                }
+            }
+        }
+
         if (not context.sock)
             context.sock.reset(new net::UdpSocket(local4, local6, context.logger));
+
+        if (not state_path.empty()) {
+            std::ofstream outConfig(state_path);
+            outConfig << context.sock->getBoundRef(AF_INET).getPort() << std::endl;
+            outConfig << context.sock->getBoundRef(AF_INET6).getPort() << std::endl;
+        }
         run(config, std::move(context));
     }
 }
@@ -174,7 +206,7 @@ DhtRunner::run(const Config& config, Context&& context)
                     if (not pending_ops_prio.empty())
                         return true;
                     auto s = getStatus();
-                    if (not pending_ops.empty() and (s == NodeStatus::Connected or (s == NodeStatus::Disconnected and not bootstraping)))
+                    if (not pending_ops.empty() and (s == NodeStatus::Connected or s == NodeStatus::Disconnected))
                         return true;
                 }
                 return false;
@@ -300,7 +332,6 @@ DhtRunner::join()
         if (running.exchange(State::Idle) == State::Idle)
             return;
         cv.notify_all();
-        bootstrap_cv.notify_all();
 #ifdef OPENDHT_PEER_DISCOVERY
         if (peerDiscovery_)
             peerDiscovery_->stop();
@@ -315,9 +346,6 @@ DhtRunner::join()
     if (dht_thread.joinable())
         dht_thread.join();
 
-    if (bootstrap_thread.joinable())
-        bootstrap_thread.join();
-
     {
         std::lock_guard<std::mutex> lck(storage_mtx);
         pending_ops = decltype(pending_ops)();
@@ -479,8 +507,10 @@ DhtRunner::getNodeInfo() const {
         info.node_id = dht->getNodeId();
         info.ipv4 = dht->getNodesStats(AF_INET);
         info.ipv6 = dht->getNodesStats(AF_INET6);
-        info.metrics = dht->getNodeMetrics();
-        info.ongoing_ops = ongoing_ops;
+        if (auto sock = dht->getSocket()) {
+            info.bound4 = sock->getBoundRef(AF_INET).getPort();
+            info.bound6 = sock->getBoundRef(AF_INET6).getPort();
+        }
     }
     info.ongoing_ops = ongoing_ops;
     return info;
@@ -498,7 +528,10 @@ DhtRunner::getNodeInfo(std::function<void(std::shared_ptr<NodeInfo>)> cb)
         info.node_id = dht.getNodeId();
         info.ipv4 = dht.getNodesStats(AF_INET);
         info.ipv6 = dht.getNodesStats(AF_INET6);
-        info.metrics = dht.getNodeMetrics();
+        if (auto sock = dht.getSocket()) {
+            info.bound4 = sock->getBoundRef(AF_INET).getPort();
+            info.bound6 = sock->getBoundRef(AF_INET6).getPort();
+        }
         info.ongoing_ops = ongoing_ops;
         cb(std::move(sinfo));
         opEnded();
@@ -587,7 +620,7 @@ DhtRunner::loop_()
     {
         std::lock_guard<std::mutex> lck(storage_mtx);
         auto s = getStatus();
-        ops = (pending_ops_prio.empty() && (s == NodeStatus::Connected or (s == NodeStatus::Disconnected and not bootstraping))) ?
+        ops = (pending_ops_prio.empty() && (s == NodeStatus::Connected or s == NodeStatus::Disconnected)) ?
                std::move(pending_ops) : std::move(pending_ops_prio);
     }
     while (not ops.empty()) {
@@ -642,20 +675,11 @@ DhtRunner::loop_()
     if (dropped)
         std::cerr << "Dropped " << dropped << " packets with high delay" << std::endl;
 
-    NodeStatus nstatus4 = dht->getStatus(AF_INET);
-    NodeStatus nstatus6 = dht->getStatus(AF_INET6);
+    NodeStatus nstatus4 = dht->updateStatus(AF_INET);
+    NodeStatus nstatus6 = dht->updateStatus(AF_INET6);
     if (nstatus4 != status4 || nstatus6 != status6) {
         status4 = nstatus4;
         status6 = nstatus6;
-        if (status4 == NodeStatus::Disconnected and status6 == NodeStatus::Disconnected) {
-            // We have lost connection with the DHT.  Try to recover using bootstrap nodes.
-            std::unique_lock<std::mutex> lck(bootstrap_mtx);
-            bootstrap_nodes = bootstrap_nodes_all;
-            tryBootstrapContinuously();
-        } else {
-            std::unique_lock<std::mutex> lck(bootstrap_mtx);
-            bootstrap_nodes.clear();
-        }
         if (statusCb)
             statusCb(status4, status6);
     }
@@ -902,89 +926,34 @@ DhtRunner::putEncrypted(const std::string& key, InfoHash to, Value&& value, Done
     putEncrypted(InfoHash::get(key), to, std::forward<Value>(value), std::move(cb), permanent);
 }
 
-void
-DhtRunner::tryBootstrapContinuously()
-{
-    if (bootstrap_thread.joinable()) {
-        if (bootstraping)
-            return; // already running
-        else
-            bootstrap_thread.join();
-    }
-    bootstraping = true;
-    bootstrap_thread = std::thread([this]() {
-        auto next = clock::now();
-        do {
-            decltype(bootstrap_nodes) nodes;
-            {
-                std::lock_guard<std::mutex> lck(bootstrap_mtx);
-                nodes = bootstrap_nodes;
-            }
-
-            next += BOOTSTRAP_PERIOD;
-            {
-                std::mutex mtx;
-                std::unique_lock<std::mutex> blck(mtx);
-                unsigned ping_count(0);
-                // Reverse: try last inserted bootstrap nodes first
-                for (auto it = nodes.rbegin(); it != nodes.rend(); it++) {
-                    ++ping_count;
-                    try {
-                        bootstrap(SockAddr::resolve(it->first, it->second), [&](bool) {
-                            if (running != State::Running)
-                                return;
-                            {
-                                std::unique_lock<std::mutex> blck(mtx);
-                                --ping_count;
-                            }
-                            bootstrap_cv.notify_all();
-                        });
-                    } catch (std::invalid_argument& e) {
-                        --ping_count;
-                        std::cerr << e.what() << std::endl;
-                    }
-                }
-                // wait at least until the next BOOTSTRAP_PERIOD
-                bootstrap_cv.wait_until(blck, next, [&]() { return running != State::Running; });
-                // wait for bootstrap requests to end.
-                if (running != State::Running)
-                   bootstrap_cv.wait(blck, [&]() { return running != State::Running or ping_count == 0; });
-            }
-            // update state
-            {
-                std::lock_guard<std::mutex> lck(dht_mtx);
-                bootstraping = running == State::Running and
-                               status4 == NodeStatus::Disconnected and
-                               status6 == NodeStatus::Disconnected;
-            }
-        } while (bootstraping);
-    });
-}
-
 void
 DhtRunner::bootstrap(const std::string& host, const std::string& service)
 {
-    std::lock_guard<std::mutex> lck(bootstrap_mtx);
-    bootstrap_nodes_all.emplace_back(host, service);
-    bootstrap_nodes.emplace_back(host, service);
-    tryBootstrapContinuously();
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    pending_ops_prio.emplace([host, service] (SecureDht& dht) mutable {
+        dht.addBootstrap(host, service);
+    });
+    cv.notify_all();
 }
 
 void
 DhtRunner::bootstrap(const std::string& hostService)
 {
-    std::lock_guard<std::mutex> lck(bootstrap_mtx);
-    auto host_service = splitPort(hostService);
-    bootstrap_nodes_all.emplace_back(host_service.first, host_service.second);
-    bootstrap_nodes.emplace_back(std::move(host_service.first), std::move(host_service.second));
-    tryBootstrapContinuously();
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    pending_ops_prio.emplace([host_service = splitPort(hostService)] (SecureDht& dht) mutable {
+        dht.addBootstrap(host_service.first, host_service.second);
+    });
+    cv.notify_all();
 }
 
 void
 DhtRunner::clearBootstrap()
 {
-    std::lock_guard<std::mutex> lck(bootstrap_mtx);
-    bootstrap_nodes_all.clear();
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    pending_ops_prio.emplace([] (SecureDht& dht) mutable {
+        dht.clearBootstrap();
+    });
+    cv.notify_all();
 }
 
 void

src/http.cpp

@@ -20,17 +20,31 @@
 #include "log_enable.h"
 #include "crypto.h"
 #include "base64.h"
+#include "compat/os_cert.h"
 
 #include <asio.hpp>
 #include <restinio/impl/tls_socket.hpp>
 #include <http_parser.h>
 #include <json/json.h>
 
+#include <openssl/ocsp.h>
+#include <openssl/ssl.h>
+#include <openssl/asn1.h>
+
+#include <crypto/x509.h>
+
+#define MAXAGE_SEC (14*24*60*60)
+#define JITTER_SEC (60)
+#define OCSP_MAX_RESPONSE_SIZE (20480)
+
 namespace dht {
 namespace http {
 
-constexpr char HTTP_HEADER_CONTENT_TYPE_JSON[] = "application/json";
-constexpr char HTTP_HEADER_DELIM[] = "\r\n\r\n";
+constexpr const char HTTP_HEADER_CONTENT_TYPE_JSON[] = "application/json";
+constexpr const char HTTP_HEADER_DELIM[] = "\r\n\r\n";
+constexpr const char HTTP_PROTOCOL[] = "http://";
+constexpr const char HTTPS_PROTOCOL[] = "https://";
+constexpr const char ORIGIN_PROTOCOL[] = "//";
 constexpr unsigned MAX_REDIRECTS {5};
 
 Url::Url(const std::string& url): url(url)
@@ -42,7 +56,6 @@ Url::Url(const std::string& url): url(url)
         addr_begin = proto_end + 3;
         if (url.substr(0, proto_end) == "https"){
             protocol = "https";
-            service = protocol;
         }
     }
     // host and service
@@ -68,6 +81,21 @@ Url::Url(const std::string& url): url(url)
     }
 }
 
+std::string
+Url::toString() const
+{
+    std::stringstream ss;
+    if (not protocol.empty()) {
+        ss << protocol << "://";
+    }
+    ss << host;
+    if (not service.empty()) {
+        ss << ':' << service;
+    }
+    ss << target;
+    return ss.str();
+}
+
 // connection
 
 std::atomic_uint Connection::ids_ {1};
@@ -75,10 +103,16 @@ std::atomic_uint Connection::ids_ {1};
 Connection::Connection(asio::io_context& ctx, const bool ssl, std::shared_ptr<dht::Logger> l)
     : id_(Connection::ids_++), ctx_(ctx), istream_(&read_buf_), logger_(l)
 {
-    if (ssl){
-        ssl_ctx_ = std::make_shared<asio::ssl::context>(asio::ssl::context::sslv23);
+    if (ssl) {
+        ssl_ctx_ = std::make_shared<asio::ssl::context>(asio::ssl::context::tls_client);
+        ssl_ctx_->set_verify_mode(asio::ssl::verify_peer | asio::ssl::verify_fail_if_no_peer_cert);
+#ifdef __ANDROID__
+        ssl_ctx_->add_verify_path("/system/etc/security/cacerts");
+#elif defined(WIN32) || defined(__APPLE__)
+        addSystemCaCertificates(ssl_ctx_->native_handle(), l);
+#else
         ssl_ctx_->set_default_verify_paths();
-        ssl_ctx_->set_verify_mode(asio::ssl::verify_none);
+#endif
         ssl_socket_ = std::make_unique<ssl_socket_t>(ctx_, ssl_ctx_);
         if (logger_)
             logger_->d("[connection:%i] start https session", id_);
@@ -94,8 +128,15 @@ Connection::Connection(asio::io_context& ctx, std::shared_ptr<dht::crypto::Certi
                        const dht::crypto::Identity& identity, std::shared_ptr<dht::Logger> l)
     : id_(Connection::ids_++), ctx_(ctx), istream_(&read_buf_), logger_(l)
 {
-    ssl_ctx_ = std::make_shared<asio::ssl::context>(asio::ssl::context::sslv23);
+    ssl_ctx_ = std::make_shared<asio::ssl::context>(asio::ssl::context::tls_client);
+    ssl_ctx_->set_verify_mode(asio::ssl::verify_peer | asio::ssl::verify_fail_if_no_peer_cert);
+#ifdef __ANDROID__
+    ssl_ctx_->add_verify_path("/system/etc/security/cacerts");
+#elif WIN32
+    addSystemCaCertificates(ssl_ctx_->native_handle(), l);
+#else
     ssl_ctx_->set_default_verify_paths();
+#endif
     asio::error_code ec;
     if (server_ca){
         auto ca = server_ca->toString(false/*chain*/);
@@ -120,7 +161,6 @@ Connection::Connection(asio::io_context& ctx, std::shared_ptr<dht::crypto::Certi
         else if (logger_)
             logger_->d("[connection:%i] client certificate %s", id_, identity.second->getUID().c_str());
     }
-    ssl_ctx_->set_verify_mode(asio::ssl::verify_peer | asio::ssl::verify_fail_if_no_peer_cert);
     ssl_socket_ = std::make_unique<ssl_socket_t>(ctx_, ssl_ctx_);
 }
 
@@ -159,30 +199,305 @@ Connection::is_ssl() const
     return ssl_ctx_ ? true : false;
 }
 
+static time_t
+parse_ocsp_time(ASN1_GENERALIZEDTIME* gt)
+{
+    struct tm tm;
+    time_t rv = -1;
+
+    if (gt == nullptr)
+        return -1;
+    // RFC 6960 specifies that all times in OCSP must be GENERALIZEDTIME
+    if (ASN1_time_parse((const char*)gt->data, gt->length, &tm, V_ASN1_GENERALIZEDTIME) == -1)
+        return -1;
+    if ((rv = timegm(&tm)) == -1)
+        return -1;
+    return rv;
+}
+
+static inline X509*
+cert_from_chain(STACK_OF(X509)* fullchain)
+{
+    return sk_X509_value(fullchain, 0);
+}
+
+static X509*
+issuer_from_chain(STACK_OF(X509)* fullchain)
+{
+    X509 *cert, *issuer;
+    X509_NAME *issuer_name;
+
+    cert = cert_from_chain(fullchain);
+    if ((issuer_name = X509_get_issuer_name(cert)) == nullptr)
+        return nullptr;
+
+    issuer = X509_find_by_subject(fullchain, issuer_name);
+    return issuer;
+}
+
+using OscpRequestPtr = std::unique_ptr<OCSP_REQUEST, decltype(&OCSP_REQUEST_free)>;
+struct OscpRequestInfo {
+    OscpRequestPtr req {nullptr, &OCSP_REQUEST_free};
+    std::vector<uint8_t> data;
+    std::string url;
+};
+
+static std::unique_ptr<OscpRequestInfo>
+ocspRequestFromCert(STACK_OF(X509)* fullchain, const std::shared_ptr<Logger>& logger, bool nonce = false)
+{
+    if (fullchain == nullptr)
+        return {};
+
+    if (sk_X509_num(fullchain) <= 1) {
+        if (logger)
+            logger->e("Cert does not contain a cert chain");
+        return {};
+    }
+    X509* cert = cert_from_chain(fullchain);
+    if (cert == nullptr) {
+        if (logger)
+            logger->e("No certificate found");
+        return {};
+    }
+    X509* issuer = issuer_from_chain(fullchain);
+    if (issuer == nullptr) {
+        if (logger)
+            logger->e("Unable to find issuer for cert");
+        return {};
+    }
+
+    auto urls = X509_get1_ocsp(cert);
+    if (urls == nullptr || sk_OPENSSL_STRING_num(urls) <= 0) {
+        if (logger)
+            logger->e("Certificate contains no OCSP url");
+        return {};
+    }
+    auto url = sk_OPENSSL_STRING_value(urls, 0);
+    if (url == nullptr)
+        return {};
+
+    auto request = std::make_unique<OscpRequestInfo>();
+    request->req = OscpRequestPtr(OCSP_REQUEST_new(), &OCSP_REQUEST_free);
+    request->url = strdup(url);
+    X509_email_free(urls);
+
+    OCSP_CERTID* id = OCSP_cert_to_id(EVP_sha1(), cert, issuer);
+    if (id == nullptr) {
+        if (logger)
+            logger->e("Unable to get certificate id from cert");
+        return {};
+    }
+    if (OCSP_request_add0_id(request->req.get(), id) == nullptr) {
+        if (logger)
+            logger->e("Unable to add certificate id to request");
+        return {};
+    }
+
+    if (nonce)
+        OCSP_request_add1_nonce(request->req.get(), nullptr, -1);
+
+    int size;
+    uint8_t* data {nullptr};
+    if ((size = i2d_OCSP_REQUEST(request->req.get(), &data)) <= 0) {
+        if (logger)
+            logger->e("Unable to encode ocsp request");
+        return {};
+    }
+    if (data == nullptr) {
+        if (logger)
+            logger->e("Unable to allocte memory");
+        return {};
+    }
+    request->data = std::vector<uint8_t>(data, data+size);
+    free(data);
+    return request;
+}
+
+bool
+ocspValidateResponse(const OscpRequestInfo& info, STACK_OF(X509)* fullchain, const std::string& response, X509_STORE *store, const std::shared_ptr<Logger>& logger)
+{
+    ASN1_GENERALIZEDTIME *revtime = nullptr, *thisupd = nullptr, *nextupd = nullptr;
+    const uint8_t* p = (const uint8_t*)response.data();
+    int status, cert_status=0, crl_reason=0;
+    time_t now, rev_t = -1, this_t, next_t;
+    OCSP_RESPONSE *resp;
+    OCSP_BASICRESP *bresp;
+    OCSP_CERTID *cid;
+
+    X509* cert = cert_from_chain(fullchain);
+    if (cert == nullptr) {
+        if (logger)
+            logger->e("No certificate found");
+        return false;
+    }
+    X509* issuer = issuer_from_chain(fullchain);
+    if (issuer == nullptr) {
+        if (logger)
+            logger->e("Unable to find issuer for cert");
+        return false;
+    }
+    if ((cid = OCSP_cert_to_id(nullptr, cert, issuer)) == nullptr) {
+        if (logger)
+            logger->e("Unable to get issuer cert/CID");
+        return false;
+    }
+
+    if ((resp = d2i_OCSP_RESPONSE(nullptr, &p, response.size())) == nullptr) {
+        if (logger)
+            logger->e("OCSP response unserializable");
+        return false;
+    }
+
+    if ((bresp = OCSP_response_get1_basic(resp)) == nullptr) {
+        if (logger)
+            logger->e("Failed to load OCSP response");
+        return false;
+    }
+
+    if (OCSP_basic_verify(bresp, fullchain, store, OCSP_TRUSTOTHER) != 1) {
+        if (logger)
+            logger->w("OCSP verify failed");
+        return false;
+    }
+    printf("OCSP response signature validated\n");
+
+    status = OCSP_response_status(resp);
+    if (status != OCSP_RESPONSE_STATUS_SUCCESSFUL) {
+        if (logger)
+            logger->w("OCSP Failure: code %d (%s)", status, OCSP_response_status_str(status));
+        return false;
+    }
+
+    // Check the nonce if we sent one
+    if (OCSP_check_nonce(info.req.get(), bresp) <= 0) {
+        if (logger)
+            logger->w("No OCSP nonce, or mismatch");
+        return false;
+    }
+
+    if (OCSP_resp_find_status(bresp, cid, &cert_status, &crl_reason,
+        &revtime, &thisupd, &nextupd) != 1) {
+        if (logger)
+            logger->w("OCSP verify failed: no result for cert");
+        return false;
+    }
+
+    if (revtime && (rev_t = parse_ocsp_time(revtime)) == -1) {
+        if (logger)
+            logger->w("Unable to parse revocation time in OCSP reply");
+        return false;
+    }
+    // Belt and suspenders, Treat it as revoked if there is either
+    // a revocation time, or status revoked.
+    if (rev_t != -1 || cert_status == V_OCSP_CERTSTATUS_REVOKED) {
+        if (logger)
+            logger->w("Invalid OCSP reply: certificate is revoked");
+        if (rev_t != -1) {
+            if (logger)
+                logger->w("Certificate revoked at: %s", ctime(&rev_t));
+        }
+        return false;
+    }
+    if ((this_t = parse_ocsp_time(thisupd)) == -1) {
+        if (logger)
+            logger->w("unable to parse this update time in OCSP reply");
+        return false;
+    }
+    if ((next_t = parse_ocsp_time(nextupd)) == -1) {
+        if (logger)
+            logger->w("unable to parse next update time in OCSP reply");
+        return false;
+    }
+
+    // Don't allow this update to precede next update
+    if (this_t >= next_t) {
+        if (logger)
+            logger->w("Invalid OCSP reply: this update >= next update");
+        return false;
+    }
+
+    now = time(nullptr);
+    // Check that this update is not more than JITTER seconds in the future.
+    if (this_t > now + JITTER_SEC) {
+        if (logger)
+            logger->e("Invalid OCSP reply: this update is in the future (%s)", ctime(&this_t));
+        return false;
+    }
+
+    // Check that this update is not more than MAXSEC in the past.
+    if (this_t < now - MAXAGE_SEC) {
+        if (logger)
+            logger->e("Invalid OCSP reply: this update is too old (%s)", ctime(&this_t));
+        return false;
+    }
+
+    // Check that next update is still valid
+    if (next_t < now - JITTER_SEC) {
+        if (logger)
+            logger->w("Invalid OCSP reply: reply has expired (%s)", ctime(&next_t));
+        return false;
+    }
+
+    if (logger) {
+        logger->d("OCSP response validated");
+        logger->d("	   This Update: %s", ctime(&this_t));
+        logger->d("	   Next Update: %s", ctime(&next_t));
+    }
+    return true;
+}
+
 void
-Connection::set_ssl_verification(const asio::ip::tcp::endpoint& endpoint, const asio::ssl::verify_mode verify_mode)
+Connection::set_ssl_verification(const std::string& hostname, const asio::ssl::verify_mode verify_mode)
 {
     std::lock_guard<std::mutex> lock(mutex_);
-    if (ssl_socket_ and verify_mode != asio::ssl::verify_none) {
+    if (ssl_socket_) {
+        // Set SNI Hostname (many hosts need this to handshake successfully)
+        SSL_set_tlsext_host_name(ssl_socket_->asio_ssl_stream().native_handle(), hostname.c_str());
         ssl_socket_->asio_ssl_stream().set_verify_mode(verify_mode);
-        ssl_socket_->asio_ssl_stream().set_verify_callback([
-                id = id_,
-                logger = logger_,
-                hostname = endpoint.address().to_string()
-            ] (bool preverified, asio::ssl::verify_context& ctx) -> bool {
-                if (logger)
-                    logger->d("[connection:%i] verify %s compliance to RFC 2818", id, hostname.c_str());
-                if (preverified)
-                    return preverified;
-                // starts from CA and goes down the presented chain
-                auto verifier = asio::ssl::rfc2818_verification(hostname);
-                bool verified = verifier(preverified, ctx);
-                auto verify_ec = X509_STORE_CTX_get_error(ctx.native_handle());
-                if (verified != 0 /*X509_V_OK*/ and logger)
-                    logger->e("[http::connection:%i] ssl verification error=%i", id, verify_ec);
-                return verified;
-            }
-        );
+        if (verify_mode != asio::ssl::verify_none) {
+            ssl_socket_->asio_ssl_stream().set_verify_callback([
+                    id = id_, logger = logger_, hostname
+                ] (bool preverified, asio::ssl::verify_context& ctx) -> bool {
+                    X509* cert = X509_STORE_CTX_get_current_cert(ctx.native_handle());
+                    if (logger) {
+                        char subject_name[1024];
+                        X509_NAME_oneline(X509_get_subject_name(cert), subject_name, 1024);
+                        logger->d("[connection:%i] verify %s compliance to RFC 2818:\n%s", id, hostname.c_str(), subject_name);
+                    }
+
+                    // starts from CA and goes down the presented chain
+                    auto verifier = asio::ssl::rfc2818_verification(hostname);
+                    bool verified = verifier(preverified, ctx);
+                    auto verify_ec = X509_STORE_CTX_get_error(ctx.native_handle());
+                    if (verify_ec != 0 /*X509_V_OK*/ and logger)
+                        logger->e("[http::connection:%i] ssl verification error=%i %d", id, verify_ec, verified);
+                    if (verified) {
+                        auto chain = X509_STORE_CTX_get1_chain(ctx.native_handle());
+                        if (auto ocspInfo = ocspRequestFromCert(chain, logger)) {
+                            if (logger)
+                                logger->w("[http::connection:%i] TLS OCSP server: %s, request size: %zu", id, ocspInfo->url.c_str(), ocspInfo->data.size());
+                            bool ocspVerified = false;
+                            asio::io_context io_ctx;
+                            auto ocspReq = std::make_shared<Request>(io_ctx, ocspInfo->url, [&](const Response& ocspResp){
+                                if (ocspResp.status_code == 200) {
+                                    ocspVerified = ocspValidateResponse(*ocspInfo, chain, ocspResp.body, ctx.native_handle()->ctx, logger);
+                                } else {
+                                    if (logger)
+                                        logger->w("[http::connection:%i] TLS OCSP check error", id);
+                                }
+                            }, logger);
+                            ocspReq->set_method(restinio::http_method_post());
+                            ocspReq->set_body({ocspInfo->data.begin(), ocspInfo->data.end()});
+                            ocspReq->send();
+                            io_ctx.run();
+                            if (not ocspVerified)
+                                return false;
+                        }
+                    }
+                    return verified;
+                }
+            );
+        }
     }
 }
 
@@ -242,9 +557,11 @@ Connection::async_handshake(HandlerCb cb)
                 if (this_.logger_) {
                     if (verify_ec == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT /*18*/
                         || verify_ec == X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN /*19*/)
-                        this_.logger_->d("[connection:%i] allow self-signed certificate in handshake", this_.id_);
+                        this_.logger_->d("[connection:%i] self-signed certificate in handshake: %i", this_.id_, verify_ec);
                     else if (verify_ec != X509_V_OK)
                         this_.logger_->e("[connection:%i] verify handshake error: %i", this_.id_, verify_ec);
+                    else
+                        this_.logger_->w("[connection:%i] verify handshake success", this_.id_);
                 }
             }
             if (cb)
@@ -356,7 +673,7 @@ Connection::timeout(const std::chrono::seconds timeout, HandlerCb cb)
 Resolver::Resolver(asio::io_context& ctx, const std::string& url, std::shared_ptr<dht::Logger> logger)
     : url_(url), resolver_(ctx), destroyed_(std::make_shared<bool>(false)), logger_(logger)
 {
-    resolve(url_.host, url_.service);
+    resolve(url_.host, url_.service.empty() ? url_.protocol : url_.service);
 }
 
 Resolver::Resolver(asio::io_context& ctx, const std::string& host, const std::string& service,
@@ -366,7 +683,7 @@ Resolver::Resolver(asio::io_context& ctx, const std::string& host, const std::st
     url_.host = host;
     url_.service = service;
     url_.protocol = (ssl ? "https" : "http");
-    resolve(url_.host, url_.service);
+    resolve(url_.host, url_.service.empty() ? url_.protocol : url_.service);
 }
 
 Resolver::Resolver(asio::io_context& ctx, std::vector<asio::ip::tcp::endpoint> endpoints, const bool ssl,
@@ -429,13 +746,12 @@ void
 Resolver::resolve(const std::string& host, const std::string& service)
 {
     asio::ip::tcp::resolver::query query_(host, service);
-
     resolver_.async_resolve(query_, [this, host, service, destroyed = destroyed_]
         (const asio::error_code& ec, asio::ip::tcp::resolver::results_type endpoints)
     {
         if (ec == asio::error::operation_aborted or *destroyed)
             return;
-        if (logger_){
+        if (logger_) {
             if (ec)
                 logger_->e("[http:client] [resolver] error for %s:%s: %s",
                            host.c_str(), service.c_str(), ec.message().c_str());
@@ -483,7 +799,29 @@ Request::Request(asio::io_context& ctx, const std::string& url, const Json::Valu
                 logger_->e("[http:request:%i] can't parse response to json", id_, err.c_str());
         }
         if (jsoncb)
-            jsoncb(std::move(json), response.status_code);
+            jsoncb(std::move(json), response);
+    });
+}
+
+Request::Request(asio::io_context& ctx, const std::string& url, OnJsonCb jsoncb, std::shared_ptr<dht::Logger> logger)
+    : logger_(std::move(logger)), id_(Request::ids_++), ctx_(ctx),
+      resolver_(std::make_shared<Resolver>(ctx, url, logger))
+{
+    init_default_headers();
+    set_header_field(restinio::http_field_t::accept, HTTP_HEADER_CONTENT_TYPE_JSON);
+    Json::StreamWriterBuilder wbuilder;
+    set_method(restinio::http_method_get());
+    add_on_done_callback([this, jsoncb](const Response& response) {
+        Json::Value json;
+        if (response.status_code != 0) {
+            std::string err;
+            Json::CharReaderBuilder rbuilder;
+            auto reader = std::unique_ptr<Json::CharReader>(rbuilder.newCharReader());
+            if (!reader->parse(response.body.data(), response.body.data() + response.body.size(), &json, &err) and logger_)
+                logger_->e("[http:request:%i] can't parse response to json", id_, err.c_str());
+        }
+        if (jsoncb)
+            jsoncb(std::move(json), response);
     });
 }
 
@@ -590,7 +928,7 @@ Request::set_method(restinio::http_method_id_t method) {
 
 void
 Request::set_target(std::string target) {
-    header_.request_target(std::move(target));
+    header_.request_target(target.empty() ? "/" : std::move(target));
 }
 
 void
@@ -762,18 +1100,20 @@ Request::connect(std::vector<asio::ip::tcp::endpoint>&& endpoints, HandlerCb cb)
             eps.append(endpoint.address().to_string() + ":" + std::to_string(endpoint.port()) + " ");
         logger_->d("[http:request:%i] connect begin: %s", id_, eps.c_str());
     }
-    if (get_url().protocol == "https"){
-        if (server_ca_)
+    bool isHttps = get_url().protocol == "https";
+    if (isHttps) {
+        if (server_ca_ or client_identity_.first)
             conn_ = std::make_shared<Connection>(ctx_, server_ca_, client_identity_, logger_);
         else
             conn_ = std::make_shared<Connection>(ctx_, true/*ssl*/, logger_);
+        conn_->set_ssl_verification(get_url().host, asio::ssl::verify_peer | asio::ssl::verify_fail_if_no_peer_cert);
     }
     else
         conn_ = std::make_shared<Connection>(ctx_, false/*ssl*/, logger_);
 
     // try to connect to any until one works
     std::weak_ptr<Request> wthis = shared_from_this();
-    conn_->async_connect(std::move(endpoints), [wthis, cb]
+    conn_->async_connect(std::move(endpoints), [wthis, cb, isHttps]
                         (const asio::error_code& ec, const asio::ip::tcp::endpoint& endpoint){
         auto sthis = wthis.lock();
         if (not sthis)
@@ -788,23 +1128,16 @@ Request::connect(std::vector<asio::ip::tcp::endpoint>&& endpoints, HandlerCb cb)
             if (this_.logger_)
                 this_.logger_->e("[http:request:%i] connect failed with all endpoints: %s", this_.id_, ec.message().c_str());
         } else {
-            // if (this_.logger_)
-            //     this_.logger_->d("[http:request:%i] connect success", this_.id_);
-
             const auto& url = this_.get_url();
             auto port = endpoint.port();
-            if ((url.protocol == "http" && port == (in_port_t)80)
-             || (url.protocol == "https" && port == (in_port_t)443))
+            if ((!isHttps && port == (in_port_t)80)
+             || (isHttps && port == (in_port_t)443))
                 this_.set_header_field(restinio::http_field_t::host, url.host);
             else
                 this_.set_header_field(restinio::http_field_t::host, url.host + ":" + std::to_string(port));
 
-            if (url.protocol == "https") {
-                if (this_.server_ca_)
-                    this_.conn_->set_ssl_verification(endpoint, asio::ssl::verify_peer
-                                                          | asio::ssl::verify_fail_if_no_peer_cert);
-
-                if (this_.conn_ and this_.conn_->is_open() and this_.conn_->is_ssl()){
+            if (isHttps) {
+                if (this_.conn_ and this_.conn_->is_open() and this_.conn_->is_ssl()) {
                     this_.conn_->async_handshake([id = this_.id_, cb, logger = this_.logger_](const asio::error_code& ec){
                         if (ec == asio::error::operation_aborted)
                             return;
@@ -931,7 +1264,7 @@ Request::handle_request(const asio::error_code& ec)
 }
 
 void
-Request::handle_response(const asio::error_code& ec, size_t n_bytes)
+Request::handle_response(const asio::error_code& ec, size_t /* n_bytes */)
 {
     std::lock_guard<std::mutex> lock(mutex_);
     if (ec && ec != asio::error::eof){
@@ -988,7 +1321,10 @@ Request::onHeadersComplete() {
         }
 
         if (follow_redirect and num_redirect < MAX_REDIRECTS) {
-            auto next = std::make_shared<Request>(ctx_, location_it->second, logger_);
+            auto newUrl = getRelativePath(get_url(), location_it->second);
+            if (logger_)
+                logger_->w("[http:client] [request:%i] redirect to %s", id_, newUrl.c_str());
+            auto next = std::make_shared<Request>(ctx_, newUrl, logger_);
             next->set_method(header_.method());
             next->headers_ = std::move(headers_);
             next->body_ = std::move(body_);
@@ -1018,5 +1354,46 @@ Request::onHeadersComplete() {
     }
 }
 
+bool startsWith(const std::string& haystack, const std::string& needle) {
+    return needle.length() <= haystack.length() 
+        && std::equal(needle.begin(), needle.end(), haystack.begin());
+}
+
+std::string
+Request::getRelativePath(const Url& origin, const std::string& path)
+{
+    if (startsWith(path, HTTP_PROTOCOL)
+    || startsWith(path, HTTPS_PROTOCOL)
+    || startsWith(path, ORIGIN_PROTOCOL)) {
+        // Absolute path
+        return path;
+    }
+    Url newPath = origin;
+    if (not path.empty() and path[0] == '/') {
+        newPath.target = path;
+    } else {
+        if (newPath.target.empty())
+            newPath.target.push_back('/');
+        newPath.target += path;
+    }
+    return newPath.toString();
+}
+
+const Response&
+Request::await()
+{
+    std::mutex mtx;
+    std::unique_lock<std::mutex> lock(mtx);
+    std::condition_variable cv;
+    bool ok {false};
+    add_on_done_callback([&](const Response& resp){
+        std::lock_guard<std::mutex> lk(mtx);
+        ok = true;
+        cv.notify_all();
+    });
+    cv.wait(lock, [&]{ return ok; });
+    return response_;
+}
+
 } // namespace http
 } // namespace dht

src/listener.h

@@ -30,8 +30,9 @@ namespace dht {
 struct Listener {
     time_point time;
     Query query;
+    int version;
 
-    Listener(time_point t, Query&& q) : time(t), query(std::move(q)) {}
+    Listener(time_point t, Query&& q, int version = 0) : time(t), query(std::move(q)), version(version) {}
 
     void refresh(time_point t, Query&& q) {
         time = t;

src/net.h

@@ -31,7 +31,8 @@ enum class MessageType {
     Refresh,
     Listen,
     ValueData,
-    ValueUpdate
+    ValueUpdate,
+    UpdateValue
 };
 
 } /* namespace net */

src/network_engine.cpp

@@ -48,23 +48,6 @@ static constexpr uint8_t v4prefix[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xF
 constexpr unsigned SEND_NODES {8};
 
 
-/* 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> {
-    TransId() { std::fill(begin(), end(), 0); }
-    TransId(const std::array<char, 4>& o) { std::copy(o.begin(), o.end(), begin()); }
-    TransId(uint32_t id) {
-        *reinterpret_cast<uint32_t*>(data()) = htonl(id);
-    }
-
-    uint32_t toInt() const {
-        return ntohl(*reinterpret_cast<const uint32_t*>(&(*this)[0]));
-    }
-};
-
-
 struct NetworkEngine::PartialMessage {
     SockAddr from;
     time_point start;
@@ -140,11 +123,15 @@ void
 NetworkEngine::tellListener(Sp<Node> node, 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& query)
+        const Query& query, int version)
 {
     auto nnodes = bufferNodes(node->getFamily(), hash, want, nodes, nodes6);
     try {
-        sendNodesValues(node->getAddr(), socket_id, nnodes.first, nnodes.second, values, query, ntoken);
+        if (version >= 1) {
+            sendUpdateValues(node, hash, values, scheduler.time(), ntoken, socket_id);
+        } else {
+            sendNodesValues(node->getAddr(), socket_id, nnodes.first, nnodes.second, values, query, ntoken);
+        }
     } catch (const std::overflow_error& e) {
         if (logger_)
             logger_->e("Can't send value: buffer not large enough !");
@@ -152,63 +139,103 @@ NetworkEngine::tellListener(Sp<Node> node, Tid socket_id, const InfoHash& hash,
 }
 
 void
-NetworkEngine::tellListenerRefreshed(Sp<Node> n, Tid socket_id, const InfoHash&, const Blob& token, const std::vector<Value::Id>& values)
+NetworkEngine::tellListenerRefreshed(Sp<Node> n, Tid socket_id, const InfoHash&, const Blob& token, const std::vector<Value::Id>& values, int version)
 {
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(4+(config.network?1:0));
 
-    pk.pack(KEY_U);
-    pk.pack_map(1 + (not values.empty()?1:0) + (not token.empty()?1:0));
-    pk.pack(KEY_REQ_ID); pk.pack(myid);
-    if (not token.empty()) {
-        pk.pack(KEY_REQ_TOKEN); packToken(pk, token);
-    }
-    if (not values.empty()) {
-        pk.pack(KEY_REQ_REFRESHED);
-        pk.pack(values);
-        if (logger_)
-            logger_->d(n->id, "[node %s] sending %zu refreshed values", n->toString().c_str(), values.size());
-    }
+    pk.pack_map(4 + (version >= 1 ? 1 : 0) + (config.network?1:0));
 
-    pk.pack(KEY_TID); pk.pack(socket_id);
-    pk.pack(KEY_Y); pk.pack(KEY_R);
+    pk.pack(version >= 1 ? KEY_A : KEY_U);
+        pk.pack_map(1 + (version >= 1 ? 1 : 0) + (not values.empty()?1:0) + (not token.empty()?1:0));
+        pk.pack(KEY_REQ_ID); pk.pack(myid);
+        if (version >= 1) {
+            pk.pack(KEY_REQ_SID);   pk.pack(socket_id);
+        }
+        if (not token.empty()) {
+            pk.pack(KEY_REQ_TOKEN); packToken(pk, token);
+        }
+        if (not values.empty()) {
+            pk.pack(KEY_REQ_REFRESHED);
+            pk.pack(values);
+            if (logger_)
+                logger_->d(n->id, "[node %s] sending %zu refreshed values", n->toString().c_str(), values.size());
+        }
+
+    pk.pack(KEY_Y); pk.pack(version >= 1 ? KEY_Q : KEY_R);
     pk.pack(KEY_UA); pk.pack(my_v);
     if (config.network) {
         pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
+    if (version >= 1) {
+        Tid tid (n->getNewTid());
+
+        pk.pack(KEY_Q);   pk.pack(QUERY_UPDATE);
+        pk.pack(KEY_TID); pk.pack(tid);
+
+        auto req = std::make_shared<Request>(MessageType::UpdateValue, tid, n,
+            Blob(buffer.data(), buffer.data() + buffer.size()),
+            [=](const Request&, ParsedMessage&&) { /* on done */ },
+            [=](const Request&, bool) { /* on expired */ }
+        );
+        sendRequest(req);
+        ++out_stats.updateValue;
+        return;
+    }
+    pk.pack(KEY_TID); pk.pack(socket_id);
+
     // send response
     send(n->getAddr(), buffer.data(), buffer.size());
 }
 
 void
-NetworkEngine::tellListenerExpired(Sp<Node> n, Tid socket_id, const InfoHash&, const Blob& token, const std::vector<Value::Id>& values)
+NetworkEngine::tellListenerExpired(Sp<Node> n, Tid socket_id, const InfoHash&, const Blob& token, const std::vector<Value::Id>& values, int version)
 {
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(4+(config.network?1:0));
 
-    pk.pack(KEY_U);
-    pk.pack_map(1 + (not values.empty()?1:0) + (not token.empty()?1:0));
-    pk.pack(KEY_REQ_ID); pk.pack(myid);
-    if (not token.empty()) {
-        pk.pack(KEY_REQ_TOKEN); packToken(pk, token);
-    }
-    if (not values.empty()) {
-        pk.pack(KEY_REQ_EXPIRED);
-        pk.pack(values);
-        if (logger_)
-            logger_->d(n->id, "[node %s] sending %zu expired values", n->toString().c_str(), values.size());
-    }
+    pk.pack_map(4 + (version >= 1 ? 1 : 0) + (config.network?1:0));
 
-    pk.pack(KEY_TID); pk.pack(socket_id);
-    pk.pack(KEY_Y); pk.pack(KEY_R);
+    pk.pack(version >= 1 ? KEY_A : KEY_U);
+        pk.pack_map(1 + (version >= 1 ? 1 : 0) + (not values.empty()?1:0) + (not token.empty()?1:0));
+        pk.pack(KEY_REQ_ID); pk.pack(myid);
+        if (version >= 1) {
+            pk.pack(KEY_REQ_SID);   pk.pack(socket_id);
+        }
+        if (not token.empty()) {
+            pk.pack(KEY_REQ_TOKEN); packToken(pk, token);
+        }
+        if (not values.empty()) {
+            pk.pack(KEY_REQ_EXPIRED);
+            pk.pack(values);
+            if (logger_)
+                logger_->d(n->id, "[node %s] sending %zu expired values", n->toString().c_str(), values.size());
+        }
+
+    pk.pack(KEY_Y); pk.pack(version >= 1 ? KEY_Q : KEY_R);
     pk.pack(KEY_UA); pk.pack(my_v);
     if (config.network) {
         pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
+    if (version >= 1) {
+        Tid tid (n->getNewTid());
+
+        pk.pack(KEY_Q);   pk.pack(QUERY_UPDATE);
+        pk.pack(KEY_TID);     pk.pack(tid);
+
+        auto req = std::make_shared<Request>(MessageType::UpdateValue, tid, n,
+            Blob(buffer.data(), buffer.data() + buffer.size()),
+            [=](const Request&, ParsedMessage&&) { /* on done */ },
+            [=](const Request&, bool) { /* on expired */ }
+        );
+        sendRequest(req);
+        ++out_stats.updateValue;
+        return;
+    }
+    pk.pack(KEY_TID); pk.pack(socket_id);
+
     // send response
     send(n->getAddr(), buffer.data(), buffer.size());
 }
@@ -281,6 +308,9 @@ NetworkEngine::requestStep(Sp<Request> sreq)
             ++req.attempt_count;
             req.attempt_duration +=
                 req.attempt_duration + uniform_duration_distribution<>(0ms, ((duration)Node::MAX_RESPONSE_TIME)/4)(rd);
+            if (not req.parts.empty()){
+                sendValueParts(req.tid, req.parts, node.getAddr());
+            }
         }
         std::weak_ptr<Request> wreq = sreq;
         scheduler.add(req.last_try + req.attempt_duration, [this,wreq] {
@@ -530,7 +560,8 @@ NetworkEngine::process(std::unique_ptr<ParsedMessage>&& msg, const SockAddr& fro
             {
                 req->last_try = time_point::min();
                 req->reply_time = time_point::min();
-                onError(req, DhtProtocolException {msg->error_code});
+                if (not req->setError(DhtProtocolException {msg->error_code}))
+                    onError(req, DhtProtocolException {msg->error_code});
             } else {
                 if (logIncoming_)
                     if (logger_)
@@ -542,8 +573,11 @@ NetworkEngine::process(std::unique_ptr<ParsedMessage>&& msg, const SockAddr& fro
         case MessageType::Reply:
             if (req) { /* request reply */
                 auto& r = *req;
-                if (r.getType() == MessageType::AnnounceValue or r.getType() == MessageType::Listen)
+                if (r.getType() == MessageType::AnnounceValue
+                 or r.getType() == MessageType::Listen
+                 or r.getType() == MessageType::Refresh) {
                     r.node->authSuccess();
+                }
                 r.reply_time = scheduler.time();
 
                 deserializeNodes(*msg, from);
@@ -614,18 +648,29 @@ NetworkEngine::process(std::unique_ptr<ParsedMessage>&& msg, const SockAddr& fro
                 if (logIncoming_ and logger_)
                     logger_->d(msg->info_hash, node->id, "[node %s] got 'listen' request for %s", node->toString().c_str(), msg->info_hash.toString().c_str());
                 ++in_stats.listen;
-                RequestAnswer answer = onListen(node, msg->info_hash, msg->token, msg->socket_id, std::move(msg->query));
+                RequestAnswer answer = onListen(node, msg->info_hash, msg->token, msg->socket_id, std::move(msg->query), msg->version);
                 auto nnodes = bufferNodes(from.getFamily(), msg->info_hash, msg->want, answer.nodes4, answer.nodes6);
                 sendListenConfirmation(from, msg->tid);
                 break;
             }
+            case MessageType::UpdateValue: {
+                if (logIncoming_ and logger_)
+                    logger_->d(msg->info_hash, node->id, "[node %s] got 'update' request for %s", node->toString().c_str(), msg->info_hash.toString().c_str());
+                ++in_stats.updateValue;
+                if (auto rsocket = node->getSocket(msg->socket_id))
+                    rsocket->on_receive(node, std::move(*msg));
+                else if (logger_)
+                    logger_->e(msg->info_hash, node->id, "[node %s] 'update' request without socket for %s", node->toString().c_str(), msg->info_hash.toString().c_str());
+                sendListenConfirmation(from, msg->tid);
+                break;
+            }
             default:
                 break;
             }
         } catch (const std::overflow_error& e) {
             if (logger_)
                 logger_->e("Can't send value: buffer not large enough !");
-        } catch (DhtProtocolException& e) {
+        } catch (const DhtProtocolException& e) {
             sendError(from, msg->tid, e.getCode(), e.getMsg().c_str(), true);
         }
     }
@@ -651,7 +696,7 @@ NetworkEngine::send(const SockAddr& addr, const char *buf, size_t len, bool conf
 
 Sp<Request>
 NetworkEngine::sendPing(Sp<Node> node, RequestCb&& on_done, RequestExpiredCb&& on_expired) {
-    TransId tid (node->getNewTid());
+    Tid tid (node->getNewTid());
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
     pk.pack_map(5+(config.network?1:0));
@@ -660,15 +705,14 @@ NetworkEngine::sendPing(Sp<Node> node, RequestCb&& on_done, RequestExpiredCb&& o
      pk.pack(KEY_REQ_ID); pk.pack(myid);
 
     pk.pack(KEY_Q); pk.pack(QUERY_PING);
-    pk.pack(KEY_TID); pk.pack_bin(tid.size());
-                              pk.pack_bin_body((const char*)tid.data(), tid.size());
+    pk.pack(KEY_TID); pk.pack(tid);
     pk.pack(KEY_Y); pk.pack(KEY_Q);
     pk.pack(KEY_UA); pk.pack(my_v);
     if (config.network) {
         pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
-    auto req = std::make_shared<Request>(MessageType::Ping, tid.toInt(), node,
+    auto req = std::make_shared<Request>(MessageType::Ping, tid, node,
         Blob(buffer.data(), buffer.data() + buffer.size()),
         [=](const Request& req_status, ParsedMessage&&) {
             if (logger_)
@@ -698,9 +742,7 @@ NetworkEngine::sendPong(const SockAddr& addr, Tid tid) {
       pk.pack(KEY_REQ_ID); pk.pack(myid);
       insertAddr(pk, addr);
 
-    TransId t (tid);
-    pk.pack(KEY_TID); pk.pack_bin(t.size());
-                               pk.pack_bin_body((const char*)t.data(), t.size());
+    pk.pack(KEY_TID); pk.pack(tid);
     pk.pack(KEY_Y); pk.pack(KEY_R);
     pk.pack(KEY_UA); pk.pack(my_v);
     if (config.network) {
@@ -713,7 +755,7 @@ NetworkEngine::sendPong(const SockAddr& addr, Tid tid) {
 Sp<Request>
 NetworkEngine::sendFindNode(Sp<Node> n, const InfoHash& target, want_t want,
         RequestCb&& on_done, RequestExpiredCb&& on_expired) {
-    TransId tid (n->getNewTid());
+    Tid tid (n->getNewTid());
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
     pk.pack_map(5+(config.network?1:0));
@@ -729,15 +771,14 @@ NetworkEngine::sendFindNode(Sp<Node> n, const InfoHash& target, want_t want,
     }
 
     pk.pack(KEY_Q); pk.pack(QUERY_FIND);
-    pk.pack(KEY_TID); pk.pack_bin(tid.size());
-                               pk.pack_bin_body((const char*)tid.data(), tid.size());
+    pk.pack(KEY_TID); pk.pack(tid);
     pk.pack(KEY_Y); pk.pack(KEY_Q);
     pk.pack(KEY_UA); pk.pack(my_v);
     if (config.network) {
         pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
-    auto req = std::make_shared<Request>(MessageType::FindNode, tid.toInt(), n,
+    auto req = std::make_shared<Request>(MessageType::FindNode, tid, n,
         Blob(buffer.data(), buffer.data() + buffer.size()),
         [=](const Request& req_status, ParsedMessage&& msg) { /* on done */
             if (on_done) {
@@ -759,7 +800,7 @@ NetworkEngine::sendFindNode(Sp<Node> n, const InfoHash& target, want_t want,
 Sp<Request>
 NetworkEngine::sendGetValues(Sp<Node> n, const InfoHash& info_hash, const Query& query, want_t want,
         RequestCb&& on_done, RequestExpiredCb&& on_expired) {
-    TransId tid (n->getNewTid());
+    Tid tid (n->getNewTid());
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
     pk.pack_map(5+(config.network?1:0));
@@ -783,15 +824,14 @@ NetworkEngine::sendGetValues(Sp<Node> n, const InfoHash& info_hash, const Query&
       }
 
     pk.pack(KEY_Q); pk.pack(QUERY_GET);
-    pk.pack(KEY_TID); pk.pack_bin(tid.size());
-                      pk.pack_bin_body((const char*)tid.data(), tid.size());
+    pk.pack(KEY_TID); pk.pack(tid);
     pk.pack(KEY_Y); pk.pack(KEY_Q);
     pk.pack(KEY_UA); pk.pack(my_v);
     if (config.network) {
         pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
-    auto req = std::make_shared<Request>(MessageType::GetValues, tid.toInt(), n,
+    auto req = std::make_shared<Request>(MessageType::GetValues, tid, n,
         Blob(buffer.data(), buffer.data() + buffer.size()),
         [=](const Request& req_status, ParsedMessage&& msg) { /* on done */
             if (on_done) {
@@ -893,7 +933,7 @@ NetworkEngine::packValueHeader(msgpack::sbuffer& buffer, const std::vector<Sp<Va
 }
 
 void
-NetworkEngine::sendValueParts(const TransId& tid, const std::vector<Blob>& svals, const SockAddr& addr)
+NetworkEngine::sendValueParts(Tid tid, const std::vector<Blob>& svals, const SockAddr& addr)
 {
     msgpack::sbuffer buffer;
     unsigned i=0;
@@ -908,8 +948,7 @@ NetworkEngine::sendValueParts(const TransId& tid, const std::vector<Blob>& svals
                 pk.pack(KEY_NETID); pk.pack(config.network);
             }
             pk.pack(KEY_Y); pk.pack(KEY_V);
-            pk.pack(KEY_TID); pk.pack_bin(tid.size());
-                                       pk.pack_bin_body((const char*)tid.data(), tid.size());
+            pk.pack(KEY_TID); pk.pack(tid);
             pk.pack(KEY_V); pk.pack_map(1);
                 pk.pack(i); pk.pack_map(2);
                     pk.pack(std::string("o")); pk.pack(start);
@@ -964,9 +1003,7 @@ NetworkEngine::sendNodesValues(const SockAddr& addr, Tid tid, const Blob& nodes,
         }
     }
 
-    TransId t (tid);
-    pk.pack(KEY_TID); pk.pack_bin(t.size());
-                      pk.pack_bin_body((const char*)t.data(), t.size());
+    pk.pack(KEY_TID); pk.pack(tid);
     pk.pack(KEY_Y); pk.pack(KEY_R);
     pk.pack(KEY_UA); pk.pack(my_v);
     if (config.network) {
@@ -1036,54 +1073,35 @@ NetworkEngine::sendListen(Sp<Node> n,
         const InfoHash& hash,
         const Query& query,
         const Blob& token,
-        Sp<Request> previous,
+        Tid socketId,
         RequestCb&& on_done,
-        RequestExpiredCb&& on_expired,
-        SocketCb&& socket_cb)
+        RequestExpiredCb&& on_expired)
 {
-    Tid socket;
-    TransId tid (n->getNewTid());
-    if (previous and previous->node == n) {
-        socket = previous->getSocket();
-    } else {
-        if (previous)
-            if (logger_)
-                logger_->e(hash, "[node %s] trying refresh listen contract with wrong node", previous->node->toString().c_str());
-        socket = n->openSocket(std::move(socket_cb));
-    }
-
-    if (not socket) {
-        if (logger_)
-            logger_->e(hash, "[node %s] unable to get a valid socket for listen. Aborting listen", n->toString().c_str());
-        return {};
-    }
-    TransId sid(socket);
-
+    Tid tid (n->getNewTid());
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
     pk.pack_map(5+(config.network?1:0));
 
     auto has_query = not query.where.empty() or not query.select.empty();
-    pk.pack(KEY_A); pk.pack_map(4 + has_query);
+    pk.pack(KEY_A); pk.pack_map(5 + has_query);
       pk.pack(KEY_REQ_ID);    pk.pack(myid);
+      pk.pack(KEY_VERSION);   pk.pack(1);
       pk.pack(KEY_REQ_H);     pk.pack(hash);
       pk.pack(KEY_REQ_TOKEN); packToken(pk, token);
-      pk.pack(KEY_REQ_SID);   pk.pack_bin(sid.size());
-                              pk.pack_bin_body((const char*)sid.data(), sid.size());
+      pk.pack(KEY_REQ_SID);   pk.pack(socketId);
       if (has_query) {
           pk.pack(KEY_REQ_QUERY); pk.pack(query);
       }
 
     pk.pack(KEY_Q); pk.pack(QUERY_LISTEN);
-    pk.pack(KEY_TID); pk.pack_bin(tid.size());
-                               pk.pack_bin_body((const char*)tid.data(), tid.size());
+    pk.pack(KEY_TID); pk.pack(tid);
     pk.pack(KEY_Y); pk.pack(KEY_Q);
     pk.pack(KEY_UA); pk.pack(my_v);
     if (config.network) {
         pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
-    auto req = std::make_shared<Request>(MessageType::Listen, tid.toInt(), n,
+    auto req = std::make_shared<Request>(MessageType::Listen, tid, n,
         Blob(buffer.data(), buffer.data() + buffer.size()),
         [=](const Request& req_status, ParsedMessage&& msg) { /* on done */
             if (on_done)
@@ -1092,8 +1110,7 @@ NetworkEngine::sendListen(Sp<Node> n,
         [=](const Request& req_status, bool done) { /* on expired */
             if (on_expired)
                 on_expired(req_status, done);
-        },
-        socket
+        }
     );
     sendRequest(req);
     ++out_stats.listen;
@@ -1110,9 +1127,7 @@ NetworkEngine::sendListenConfirmation(const SockAddr& addr, Tid tid) {
       pk.pack(KEY_REQ_ID); pk.pack(myid);
       insertAddr(pk, addr);
 
-    TransId t (tid);
-    pk.pack(KEY_TID); pk.pack_bin(t.size());
-                               pk.pack_bin_body((const char*)t.data(), t.size());
+    pk.pack(KEY_TID); pk.pack(tid);
     pk.pack(KEY_Y); pk.pack(KEY_R);
     pk.pack(KEY_UA); pk.pack(my_v);
     if (config.network) {
@@ -1131,7 +1146,7 @@ NetworkEngine::sendAnnounceValue(Sp<Node> n,
         RequestCb&& on_done,
         RequestExpiredCb&& on_expired)
 {
-    TransId tid (n->getNewTid());
+    Tid tid (n->getNewTid());
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
     pk.pack_map(5+(config.network?1:0));
@@ -1147,15 +1162,14 @@ NetworkEngine::sendAnnounceValue(Sp<Node> n,
       pk.pack(KEY_REQ_TOKEN);  pk.pack(token);
 
     pk.pack(KEY_Q);   pk.pack(QUERY_PUT);
-    pk.pack(KEY_TID); pk.pack_bin(tid.size());
-                      pk.pack_bin_body((const char*)tid.data(), tid.size());
+    pk.pack(KEY_TID); pk.pack(tid);
     pk.pack(KEY_Y);   pk.pack(KEY_Q);
     pk.pack(KEY_UA);  pk.pack(my_v);
     if (config.network) {
         pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
-    auto req = std::make_shared<Request>(MessageType::AnnounceValue, tid.toInt(), n,
+    auto req = std::make_shared<Request>(MessageType::AnnounceValue, tid, n,
         Blob(buffer.data(), buffer.data() + buffer.size()),
         [=](const Request& req_status, ParsedMessage&& msg) { /* on done */
             if (msg.value_id == Value::INVALID_ID) {
@@ -1175,22 +1189,68 @@ NetworkEngine::sendAnnounceValue(Sp<Node> n,
             }
         }
     );
+    req->parts = std::move(v);
     sendRequest(req);
-    if (not v.empty())
-        sendValueParts(tid, v, n->getAddr());
     ++out_stats.put;
     return req;
 }
 
+Sp<Request>
+NetworkEngine::sendUpdateValues(Sp<Node> n,
+                                const InfoHash& infohash,
+                                const std::vector<Sp<Value>>& values,
+                                time_point created,
+                                const Blob& token,
+                                const size_t& socket_id)
+{
+    Tid tid (n->getNewTid());
+    Tid sid (socket_id);
+
+    msgpack::sbuffer buffer;
+    msgpack::packer<msgpack::sbuffer> pk(&buffer);
+    pk.pack_map(5+(config.network?1:0));
+
+    pk.pack(KEY_A); pk.pack_map((created < scheduler.time() ? 7 : 6));
+      pk.pack(KEY_REQ_ID);     pk.pack(myid);
+      pk.pack(KEY_VERSION);    pk.pack(1);
+      pk.pack(KEY_REQ_H);      pk.pack(infohash);
+      pk.pack(KEY_REQ_SID);   pk.pack(sid);
+      auto v = packValueHeader(buffer, values);
+      if (created < scheduler.time()) {
+          pk.pack(KEY_REQ_CREATION);
+          pk.pack(to_time_t(created));
+      }
+      pk.pack(KEY_REQ_TOKEN);  pk.pack(token);
+
+    pk.pack(KEY_Q);   pk.pack(QUERY_UPDATE);
+    pk.pack(KEY_TID); pk.pack(tid);
+    pk.pack(KEY_Y);   pk.pack(KEY_Q);
+    pk.pack(KEY_UA);  pk.pack(my_v);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
+    }
+
+    auto req = std::make_shared<Request>(MessageType::UpdateValue, tid, n,
+        Blob(buffer.data(), buffer.data() + buffer.size()),
+        [=](const Request&, ParsedMessage&&) { /* on done */ },
+        [=](const Request&, bool) { /* on expired */ }
+    );
+    req->parts = std::move(v);
+    sendRequest(req);
+    ++out_stats.updateValue;
+    return req;
+}
+
 Sp<Request>
 NetworkEngine::sendRefreshValue(Sp<Node> n,
                 const InfoHash& infohash,
                 const Value::Id& vid,
                 const Blob& token,
                 RequestCb&& on_done,
+                RequestErrorCb&& on_error,
                 RequestExpiredCb&& on_expired)
 {
-    TransId tid (n->getNewTid());
+    Tid tid (n->getNewTid());
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
     pk.pack_map(5+(config.network?1:0));
@@ -1202,15 +1262,14 @@ NetworkEngine::sendRefreshValue(Sp<Node> n,
       pk.pack(KEY_REQ_TOKEN);    pk.pack(token);
 
     pk.pack(KEY_Q); pk.pack(QUERY_REFRESH);
-    pk.pack(KEY_TID); pk.pack_bin(tid.size());
-                               pk.pack_bin_body((const char*)tid.data(), tid.size());
+    pk.pack(KEY_TID); pk.pack(tid);
     pk.pack(KEY_Y); pk.pack(KEY_Q);
     pk.pack(KEY_UA); pk.pack(my_v);
     if (config.network) {
         pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
-    auto req = std::make_shared<Request>(MessageType::Refresh, tid.toInt(), n,
+    auto req = std::make_shared<Request>(MessageType::Refresh, tid, n,
         Blob(buffer.data(), buffer.data() + buffer.size()),
         [=](const Request& req_status, ParsedMessage&& msg) { /* on done */
             if (msg.value_id == Value::INVALID_ID) {
@@ -1224,6 +1283,7 @@ NetworkEngine::sendRefreshValue(Sp<Node> n,
                 }
             }
         },
+        on_error,
         [=](const Request& req_status, bool done) { /* on expired */
             if (on_expired) {
                 on_expired(req_status, done);
@@ -1246,9 +1306,7 @@ NetworkEngine::sendValueAnnounced(const SockAddr& addr, Tid tid, Value::Id vid)
       pk.pack(KEY_REQ_VALUE_ID); pk.pack(vid);
       insertAddr(pk, addr);
 
-    TransId t(tid);
-    pk.pack(KEY_TID); pk.pack_bin(t.size());
-                               pk.pack_bin_body((const char*)t.data(), t.size());
+    pk.pack(KEY_TID); pk.pack(tid);
     pk.pack(KEY_Y); pk.pack(KEY_R);
     pk.pack(KEY_UA); pk.pack(my_v);
     if (config.network) {
@@ -1267,7 +1325,7 @@ NetworkEngine::sendError(const SockAddr& addr,
 {
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(4 + (include_id?1:0));
+    pk.pack_map(4 + (include_id?1:0) + (config.network?1:0));
 
     pk.pack(KEY_E); pk.pack_array(2);
       pk.pack(code);
@@ -1278,9 +1336,7 @@ NetworkEngine::sendError(const SockAddr& addr,
           pk.pack(KEY_REQ_ID); pk.pack(myid);
     }
 
-    TransId t(tid);
-    pk.pack(KEY_TID); pk.pack_bin(t.size());
-                               pk.pack_bin_body((const char*)t.data(), t.size());
+    pk.pack(KEY_TID); pk.pack(tid);
     pk.pack(KEY_Y); pk.pack(KEY_E);
     pk.pack(KEY_UA); pk.pack(my_v);
     if (config.network) {

src/node.cpp

@@ -116,7 +116,6 @@ Node::cancelRequest(const Sp<net::Request>& req)
 {
     if (req) {
         req->cancel();
-        closeSocket(req->closeSocket());
         requests_.erase(req->getTid());
     }
 }

src/parsed_message.h

@@ -54,10 +54,12 @@ static const std::string KEY_REQ_EXPIRED {"exp"};
 static const std::string KEY_REQ_REFRESHED {"re"};
 static const std::string KEY_REQ_FIELDS {"fileds"};
 static const std::string KEY_REQ_WANT {"w"};
+static const std::string KEY_VERSION {"ve"};
 
 static const std::string QUERY_PING {"ping"};
 static const std::string QUERY_FIND {"find"};
 static const std::string QUERY_GET {"get"};
+static const std::string QUERY_UPDATE {"update"};
 static const std::string QUERY_PUT {"put"};
 static const std::string QUERY_LISTEN {"listen"};
 static const std::string QUERY_REFRESH {"refresh"};
@@ -113,6 +115,7 @@ struct ParsedMessage {
     uint16_t error_code;
     /* reported address by the distant node */
     std::string ua;
+    int version {0};
     SockAddr addr;
     void msgpack_unpack(const msgpack::object& o);
 
@@ -224,6 +227,8 @@ ParsedMessage::msgpack_unpack(const msgpack::object& msg)
         type = MessageType::AnnounceValue;
     else if (parsed.q == QUERY_REFRESH)
         type = MessageType::Refresh;
+    else if (parsed.q == QUERY_UPDATE)
+        type = MessageType::UpdateValue;
     else
         throw msgpack::type_error();
 
@@ -295,6 +300,8 @@ ParsedMessage::msgpack_unpack(const msgpack::object& msg)
             parsedReq.fields = &o.val;
         else if (key == KEY_REQ_WANT)
             parsedReq.want = &o.val;
+        else if (key == KEY_VERSION)
+            version = o.val.as<int>();
     }
 
     if (parsedReq.sa) {

src/request.h

@@ -27,10 +27,9 @@ struct Node;
 namespace net {
 
 class NetworkEngine;
+class DhtProtocolException;
 struct ParsedMessage;
 
-extern std::atomic<size_t> REQ_COUNT;
-
 /*!
  * @class   Request
  * @brief   An atomic request destined to a node.
@@ -69,29 +68,24 @@ struct Request {
         }
     }
 
-    Request(State state = State::PENDING) : state_(state) {
-        REQ_COUNT++;
-    }
+    Request(State state = State::PENDING) : state_(state) {}
     Request(MessageType type, Tid tid,
             Sp<Node> node,
             Blob&& msg,
             std::function<void(const Request&, ParsedMessage&&)> on_done,
-            std::function<void(const Request&, bool)> on_expired,
-            Tid socket = 0) :
-        node(node), tid(tid), type(type), on_done(on_done), on_expired(on_expired), msg(std::move(msg)), socket(socket) {
-            REQ_COUNT++;
-        }
-
-    ~Request() {
-        REQ_COUNT--;
-    }
+            std::function<void(const Request&, bool)> on_expired) :
+        node(node), tid(tid), type(type), on_done(on_done), on_expired(on_expired), msg(std::move(msg)) { }
+    Request(MessageType type, Tid tid,
+            Sp<Node> node,
+            Blob&& msg,
+            std::function<void(const Request&, ParsedMessage&&)> on_done,
+            std::function<bool(const Request&, DhtProtocolException&&)> on_error,
+            std::function<void(const Request&, bool)> on_expired) :
+        node(node), tid(tid), type(type), on_done(on_done), on_error(on_error), on_expired(on_expired), msg(std::move(msg)) { }
 
     Tid getTid() const { return tid; }
     MessageType getType() const { return type; }
 
-    Tid getSocket() { return socket; }
-    Tid closeSocket() { auto ret = socket; socket = 0; return ret; }
-
     void setExpired() {
         if (pending()) {
             state_ = Request::State::EXPIRED;
@@ -106,6 +100,15 @@ struct Request {
             clear();
         }
     }
+    bool setError(DhtProtocolException&& e) {
+        if (pending()) {
+            state_ = Request::State::EXPIRED;
+            bool handled = on_error and on_error(*this, std::forward<DhtProtocolException>(e));
+            clear();
+            return handled;
+        }
+        return true;
+    }
 
     void cancel() {
         if (pending()) {
@@ -123,8 +126,10 @@ private:
 
     void clear() {
         on_done = {};
+        on_error = {};
         on_expired = {};
         msg = {};
+        parts = {};
     }
 
     const Tid tid {0}; /* the request id. */
@@ -137,10 +142,11 @@ private:
     time_point last_try {time_point::min()};   /* time of the last attempt to process the request. */
 
     std::function<void(const Request&, ParsedMessage&&)> on_done {};
+    std::function<bool(const Request&, DhtProtocolException&&)> on_error {};
     std::function<void(const Request&, bool)> on_expired {};
 
     Blob msg {};                      /* the serialized message. */
-    Tid socket;   /* the socket used for further reponses. */
+    std::vector<Blob> parts;
 };
 
 } /* namespace net  */

src/search.h

@@ -65,10 +65,16 @@ struct Dht::SearchNode {
         ValueCache cache;
         Sp<Scheduler::Job> cacheExpirationJob {};
         Sp<net::Request> req {};
-        CachedListenStatus(ValueStateCallback&& cb, SyncCallback&& scb)
-         : cache(std::forward<ValueStateCallback>(cb), std::forward<SyncCallback>(scb)) {}
+        Tid socketId {0};
+        CachedListenStatus(ValueStateCallback&& cb, SyncCallback scb, Tid sid)
+         : cache(std::forward<ValueStateCallback>(cb), std::forward<SyncCallback>(scb)), socketId(sid) {}
         CachedListenStatus(CachedListenStatus&&) = delete;
         CachedListenStatus(const CachedListenStatus&) = delete;
+        ~CachedListenStatus() {
+            if (socketId and req and req->node) {
+                req->node->closeSocket(socketId);
+            }
+        }
     };
     using NodeListenerStatus = std::map<Sp<Query>, CachedListenStatus>;
 
@@ -344,13 +350,15 @@ struct Dht::SearchNode {
      * Assuming the node is synced, should the "listen" request with Query q be
      * sent to this node now ?
      */
-    time_point getListenTime(const Sp<Query>& q, duration listen_expire) const {
-        auto listen_status = listenStatus.find(q);
-        if (listen_status == listenStatus.end() or not listen_status->second.req)
+    time_point getListenTime(const decltype(listenStatus)::const_iterator listen_status, duration listen_expire) const {
+        if (listen_status == listenStatus.cend() or not listen_status->second.req)
             return time_point::min();
         return listen_status->second.req->pending() ? time_point::max() :
             listen_status->second.req->reply_time + listen_expire - REANNOUNCE_MARGIN;
     }
+    time_point getListenTime(const Sp<Query>& q, duration listen_expire) const {
+        return getListenTime(listenStatus.find(q), listen_expire);
+    }
 
     /**
      * Is this node expired or candidate
@@ -568,6 +576,43 @@ struct Dht::Search {
         return canceled;
     }
 
+    void put(const Sp<Value>& value, DoneCallback callback, time_point created, bool permanent) {
+        done = false;
+        expired = false;
+        auto a_sr = std::find_if(announce.begin(), announce.end(), [&](const Announce& a){
+            return a.value->id == value->id;
+        });
+        if (a_sr == announce.end()) {
+            announce.emplace_back(Announce {permanent, value, created, callback});
+            for (auto& n : nodes) {
+                n->probe_query.reset();
+                n->acked[value->id].first.reset();
+            }
+        } else {
+            a_sr->permanent = permanent;
+            a_sr->created = created;
+            if (a_sr->value != value) {
+                a_sr->value = value;
+                for (auto& n : nodes) {
+                    n->acked[value->id].first.reset();
+                    n->probe_query.reset();
+                }
+            }
+            if (isAnnounced(value->id)) {
+                if (a_sr->callback)
+                    a_sr->callback(true, {});
+                a_sr->callback = {};
+                if (callback)
+                    callback(true, {});
+                return;
+            } else {
+                if (a_sr->callback)
+                    a_sr->callback(false, {});
+                a_sr->callback = callback;
+            }
+        }
+    }
+
     /**
      * @return The number of non-good search nodes.
      */
@@ -579,7 +624,7 @@ struct Dht::Search {
     unsigned getNumberOfConsecutiveBadNodes() const {
         unsigned count = 0;
         std::find_if(nodes.begin(), nodes.end(), [&count](const std::unique_ptr<SearchNode>& sn) {
-            if (not sn->isBad())
+            if (not sn->node->isExpired())
                 return true;
             ++count;
             return false;
@@ -722,7 +767,6 @@ Dht::Search::insertNode(const Sp<Node>& snode, time_point now, const Blob& token
         }
     }
 
-    bool new_search_node = false;
     if (not found) {
         // find if and where to trim excessive nodes
         auto t = nodes.cend();
@@ -746,9 +790,10 @@ Dht::Search::insertNode(const Sp<Node>& snode, time_point now, const Blob& token
         }
 
         if (full) {
+            bool addNode = n < t;
             if (t != nodes.cend())
                 nodes.resize(std::distance(nodes.cbegin(), t));
-            if (n >= t)
+            if (not addNode)
                 return false;
         }
 
@@ -758,7 +803,6 @@ Dht::Search::insertNode(const Sp<Node>& snode, time_point now, const Blob& token
         }
         n = nodes.emplace(n, std::make_unique<SearchNode>(snode));
         node.setTime(now);
-        new_search_node = true;
         if (node.isExpired()) {
             if (not expired)
                 bad++;
@@ -780,9 +824,9 @@ Dht::Search::insertNode(const Sp<Node>& snode, time_point now, const Blob& token
             (*n)->token = token;
         expired = false;
     }
-    if (new_search_node)
+    if (not found)
         removeExpiredNode(now);
-    return new_search_node;
+    return not found;
 }
 
 std::vector<Sp<Node>>

src/thread_pool.cpp

@@ -107,7 +107,6 @@ ThreadPool::run(std::function<void()>&& cb)
     tasks_.emplace(std::move(cb));
 
     // notify thread
-    l.unlock();
     cv_.notify_one();
 }
 

src/utils.cpp

@@ -34,9 +34,6 @@
 #endif
 
 namespace dht {
-namespace net {
-std::atomic<size_t> REQ_COUNT {0};
-}
 
 static constexpr std::array<uint8_t, 12> MAPPED_IPV4_PREFIX {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff}};
 
@@ -79,11 +76,8 @@ SockAddr::resolve(const std::string& host, const std::string& service)
     if(rc != 0)
         throw std::invalid_argument(std::string("Error: `") + host + ":" + service + "`: " + gai_strerror(rc));
 
-    addrinfo* infop = info;
-    while (infop) {
+    for (addrinfo* infop = info; infop; infop = infop->ai_next)
         ips.emplace_back(infop->ai_addr, infop->ai_addrlen);
-        infop = infop->ai_next;
-    }
     freeaddrinfo(info);
     return ips;
 }
@@ -283,28 +277,16 @@ unpackMsg(Blob b) {
 }
 
 msgpack::object*
-findMapValue(const msgpack::object& map, const char* key) {
+findMapValue(const msgpack::object& map, const char* key, size_t key_length) {
     if (map.type != msgpack::type::MAP) throw msgpack::type_error();
     for (unsigned i = 0; i < map.via.map.size; i++) {
         auto& o = map.via.map.ptr[i];
         if (o.key.type == msgpack::type::STR
+            && key_length == o.key.via.str.size
             && std::strncmp(o.key.via.str.ptr, key, o.key.via.str.size) == 0)
             return &o.val;
     }
     return nullptr;
 }
 
-msgpack::object*
-findMapValue(const msgpack::object& map, const std::string& key) {
-    if (map.type != msgpack::type::MAP) throw msgpack::type_error();
-    for (unsigned i = 0; i < map.via.map.size; i++) {
-        auto& o = map.via.map.ptr[i];
-        if (o.key.type == msgpack::type::STR
-            && key.size() == o.key.via.str.size
-            && std::strncmp(o.key.via.str.ptr, key.data(), o.key.via.str.size) == 0)
-            return &o.val;
-    }
-    return nullptr;
-}
-
 }

src/value.cpp

@@ -75,11 +75,13 @@ std::ostream& operator<< (std::ostream& s, const Value& v)
                 s << '"';
                 s.write((const char*)v.data.data(), v.data.size());
                 s << '"';
-            } else {
+            } else if (v.data.size() < 1024) {
                 s << std::hex;
                 for (auto i : v.data)
                     s << std::setfill('0') << std::setw(2) << (unsigned)i;
                 s << std::dec;
+            } else {
+                s << v.data.size() << " bytes";
             }
         }
     }

tests/cryptotester.cpp

@@ -2,6 +2,7 @@
  *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
  *
  *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *          Vsevolod Ivanov <vsevolod.ivanov@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
@@ -135,6 +136,31 @@ CryptoTester::testCertificateRequest()
     CPPUNIT_ASSERT_MESSAGE(v.toString(), v);
 }
 
+void CryptoTester::testCertificateSerialNumber()
+{
+    static const std::string cert_pem = "-----BEGIN CERTIFICATE-----"
+"MIICDjCCAZSgAwIBAgIIS90uAKp+u/swCgYIKoZIzj0EAwMwTDEQMA4GA1UEAxMH"
+"ZGh0bm9kZTE4MDYGCgmSJomT8ixkAQETKDBlNDQxZTA4YWJmYTQzYTc3ZTVjZDBm"
+"Y2QzMzAzMTc4MjYxMTk0MzIwHhcNMTkxMTA3MDA0MTMwWhcNMjkxMTA0MDA0MTMw"
+"WjBMMRAwDgYDVQQDEwdkaHRub2RlMTgwNgYKCZImiZPyLGQBARMoMGU0NDFlMDhh"
+"YmZhNDNhNzdlNWNkMGZjZDMzMDMxNzgyNjExOTQzMjB2MBAGByqGSM49AgEGBSuB"
+"BAAiA2IABCZ7sBp0Pu+b5yIifoNXchU9crv9won0in++COWynvM4GCLF2Gk6QGhh"
+"YLDxNGsyQjGR7z5AGibvYhNLU0JA4RbmxYWHw4g3wBrPA1jm9hGZ8y5Y8R97d0Hl"
+"VpyreEMjRKNDMEEwHQYDVR0OBBYEFA5EHgir+kOnflzQ/NMwMXgmEZQyMA8GA1Ud"
+"EwEB/wQFMAMBAf8wDwYDVR0PAQH/BAUDAwcGADAKBggqhkjOPQQDAwNoADBlAjEA"
+"kKF/6WReNytwSrJ8JSTToc7xWS5SvAa23Fnla4mywZUxUFS4VSxCMQTjQCknO3iZ"
+"AjBgxXyXYqn0d7vz7S6oAY5TdaD5YFT5MD2c1MAAp8pxQSwdPa9k0ZSoGIEn31Z0"
+"GxU="
+"-----END CERTIFICATE-----";
+    /*
+     * $ openssl x509 -in cert.pem  -noout -serial
+     * serial=4BDD2E00AA7EBBFB
+     */
+    static constexpr std::array<uint8_t, 8> SERIAL {{0x4b,0xdd,0x2e,0x00,0xaa,0x7e,0xbb,0xfb}};
+    auto serial = dht::crypto::Certificate(cert_pem).getSerialNumber();
+    CPPUNIT_ASSERT(std::equal(SERIAL.begin(), SERIAL.end(), serial.begin(), serial.end()));
+}
+
 void
 CryptoTester::tearDown() {
 

tests/cryptotester.h

@@ -2,6 +2,7 @@
  *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
  *
  *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *          Vsevolod Ivanov <vsevolod.ivanov@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
@@ -30,6 +31,7 @@ class CryptoTester : public CppUnit::TestFixture {
     CPPUNIT_TEST(testSignatureEncryption);
     CPPUNIT_TEST(testCertificateRevocation);
     CPPUNIT_TEST(testCertificateRequest);
+    CPPUNIT_TEST(testCertificateSerialNumber);
     CPPUNIT_TEST_SUITE_END();
 
  public:
@@ -53,6 +55,10 @@ class CryptoTester : public CppUnit::TestFixture {
      * Test certificate requests
      */
     void testCertificateRequest();
+    /**
+     * Test certificate serial number extraction
+     */
+    void testCertificateSerialNumber();
 };
 
 }  // namespace test

tests/dhtproxytester.cpp

@@ -34,24 +34,25 @@ CPPUNIT_TEST_SUITE_REGISTRATION(DhtProxyTester);
 
 void
 DhtProxyTester::setUp() {
-    nodePeer.run(0);
+    clientConfig.dht_config.node_config.max_peer_req_per_sec = -1;
+    clientConfig.dht_config.node_config.max_req_per_sec = -1;
+
+    nodePeer.run(0, clientConfig);
 
     nodeProxy = std::make_shared<dht::DhtRunner>();
-    nodeProxy->run(0);
+    nodeProxy->run(0, clientConfig);
     nodeProxy->bootstrap(nodePeer.getBound());
 
     auto serverCAIdentity = dht::crypto::generateEcIdentity("DHT Node CA");
-    auto serverIdentity = dht::crypto::generateIdentity("DHT Node", serverCAIdentity);
 
-    serverProxy = std::make_unique<dht::DhtProxyServer>(
-            //dht::crypto::Identity{}, // http
-            serverIdentity,            // https
-            nodeProxy, 8080, /*pushServer*/"127.0.0.1:8090");
+    dht::ProxyServerConfig serverConfig;
+    serverConfig.identity = dht::crypto::generateIdentity("DHT Node", serverCAIdentity);
+    serverConfig.port = 8080;
+    serverConfig.pushServer = "127.0.0.1:8090";
+    serverProxy = std::make_unique<dht::DhtProxyServer>(nodeProxy, serverConfig);
 
     clientConfig.server_ca = serverCAIdentity.second;
     clientConfig.client_identity = dht::crypto::generateIdentity("DhtProxyTester");
-    clientConfig.dht_config.node_config.maintain_storage = false;
-    clientConfig.threaded = true;
     clientConfig.push_node_id = "dhtnode";
     clientConfig.proxy_server = "https://127.0.0.1:8080";
 }
@@ -280,7 +281,7 @@ DhtProxyTester::testFuzzy()
         },[&](bool ok){
             CPPUNIT_ASSERT(ok);
         });
-        std::this_thread::sleep_for(10ms);
+        std::this_thread::sleep_for(5ms);
     }
 
     // Assert

tests/dhtrunnertester.cpp

@@ -29,8 +29,12 @@ CPPUNIT_TEST_SUITE_REGISTRATION(DhtRunnerTester);
 
 void
 DhtRunnerTester::setUp() {
-    node1.run(42222);
-    node2.run(42232);
+    dht::DhtRunner::Config config;
+    config.dht_config.node_config.max_peer_req_per_sec = -1;
+    config.dht_config.node_config.max_req_per_sec = -1;
+
+    node1.run(42222, config);
+    node2.run(42232, config);
     node2.bootstrap(node1.getBound());
 }
 
@@ -84,7 +88,9 @@ DhtRunnerTester::testListen() {
     auto a = dht::InfoHash::get("234");
     auto b = dht::InfoHash::get("2345");
     auto c = dht::InfoHash::get("23456");
-    constexpr unsigned N = 32;
+    auto d = dht::InfoHash::get("234567");
+    constexpr unsigned N = 256;
+    constexpr unsigned SZ = 56 * 1024;
 
     auto ftokena = node1.listen(a, [&](const std::shared_ptr<dht::Value>&) {
         valueCount++;
@@ -101,6 +107,16 @@ DhtRunnerTester::testListen() {
         return true;
     });
 
+    auto ftokend = node1.listen(d, [&](const std::shared_ptr<dht::Value>&) {
+        valueCount++;
+        return true;
+    });
+
+    std::vector<uint8_t> mtu;
+    mtu.reserve(SZ);
+    for (size_t i = 0; i < SZ; i++)
+        mtu.emplace_back((i % 2) ? 'T' : 'M');
+
     for (unsigned i=0; i<N; i++) {
         node2.put(a, dht::Value("v1"), [&](bool ok) {
             std::lock_guard<std::mutex> lock(mutex);
@@ -114,29 +130,88 @@ DhtRunnerTester::testListen() {
             if (ok) putOkCount++;
             cv.notify_all();
         });
+        auto bigVal = std::make_shared<dht::Value>();
+        bigVal->data = mtu;
+        node2.put(c, bigVal, [&](bool ok) {
+            std::lock_guard<std::mutex> lock(mutex);
+            putCount++;
+            if (ok) putOkCount++;
+            cv.notify_all();
+        });
     }
 
     {
         std::unique_lock<std::mutex> lk(mutex);
-        CPPUNIT_ASSERT(cv.wait_for(lk, 30s, [&]{ return putCount == N * 2u; }));
-        CPPUNIT_ASSERT_EQUAL(N * 2u, putOkCount);
+        CPPUNIT_ASSERT(cv.wait_for(lk, 30s, [&]{ return putCount == N * 3u; }));
+        CPPUNIT_ASSERT_EQUAL(N * 3u, putOkCount);
     }
 
     CPPUNIT_ASSERT(ftokena.valid());
     CPPUNIT_ASSERT(ftokenb.valid());
     CPPUNIT_ASSERT(ftokenc.valid());
+    CPPUNIT_ASSERT(ftokend.valid());
 
     auto tokena = ftokena.get();
     auto tokenc = ftokenc.get();
+    auto tokend = ftokend.get();
     // tokenb might be 0 since the callback returns false.
 
     CPPUNIT_ASSERT(tokena);
     CPPUNIT_ASSERT(tokenc);
-    CPPUNIT_ASSERT_EQUAL(N + 1u, valueCount.load());
+    CPPUNIT_ASSERT(tokend);
+    CPPUNIT_ASSERT_EQUAL(N * 2u + 1u, valueCount.load());
 
     node1.cancelListen(a, tokena);
     node1.cancelListen(b, std::move(ftokenb));
     node1.cancelListen(c, tokenc);
+    node1.cancelListen(d, tokend);
+}
+
+void
+DhtRunnerTester::testListenLotOfBytes() {
+    std::mutex mutex;
+    std::condition_variable cv;
+    std::atomic_uint valueCount(0);
+    unsigned putCount(0);
+    unsigned putOkCount(0);
+
+    std::string data(10000, 'a');
+
+    auto foo = dht::InfoHash::get("foo");
+    constexpr unsigned N = 50;
+
+    for (unsigned i=0; i<N; i++) {
+        node2.put(foo, data, [&](bool ok) {
+            std::lock_guard<std::mutex> lock(mutex);
+            putCount++;
+            if (ok) putOkCount++;
+            cv.notify_all();
+        });
+    }
+    {
+        std::unique_lock<std::mutex> lk(mutex);
+        CPPUNIT_ASSERT(cv.wait_for(lk, 30s, [&]{ return putCount == N; }));
+    }
+
+    dht::DhtRunner node3 {};
+    dht::DhtRunner::Config config;
+    config.dht_config.node_config.max_peer_req_per_sec = -1;
+    config.dht_config.node_config.max_req_per_sec = -1;
+    node3.run(42242, config);
+    node3.bootstrap(node1.getBound());
+
+    auto ftokenfoo = node3.listen(foo, [&](const std::shared_ptr<dht::Value>&) {
+        valueCount++;
+        cv.notify_all();
+        return true;
+    });
+
+    {
+        std::unique_lock<std::mutex> lk(mutex);
+        CPPUNIT_ASSERT(cv.wait_for(lk, 30s, [&]{ return valueCount == N; }));
+    }
+
+    node3.cancelListen(foo, ftokenfoo.get());
 }
 
 }  // namespace test

tests/dhtrunnertester.h

@@ -32,6 +32,7 @@ class DhtRunnerTester : public CppUnit::TestFixture {
     CPPUNIT_TEST(testConstructors);
     CPPUNIT_TEST(testGetPut);
     CPPUNIT_TEST(testListen);
+    CPPUNIT_TEST(testListenLotOfBytes);
     CPPUNIT_TEST_SUITE_END();
 
     dht::DhtRunner node1 {};
@@ -57,6 +58,10 @@ class DhtRunnerTester : public CppUnit::TestFixture {
      * Test listen method
      */
     void testListen();
+    /**
+     * Test listen method with lot of datas
+     */
+    void testListenLotOfBytes();
 };
 
 }  // namespace test

tests/httptester.cpp

@@ -39,9 +39,10 @@ HttpTester::setUp() {
     nodeProxy->run(0, /*identity*/{}, /*threaded*/true);
     nodeProxy->bootstrap(nodePeer->getBound());
 
-    serverProxy = std::unique_ptr<dht::DhtProxyServer>(
-        new dht::DhtProxyServer(
-            /*http*/dht::crypto::Identity{}, nodeProxy, 8080, /*pushServer*/"127.0.0.1:8090"));
+    dht::ProxyServerConfig config;
+    config.port = 8080;
+    config.pushServer = "127.0.0.1:8090";
+    serverProxy = std::make_unique<dht::DhtProxyServer>(nodeProxy, config);
 }
 
 void
@@ -60,7 +61,6 @@ HttpTester::test_parse_url() {
     CPPUNIT_ASSERT(parsed.url == url);
     CPPUNIT_ASSERT(parsed.protocol == "http");
     CPPUNIT_ASSERT(parsed.host == "google.com");
-    CPPUNIT_ASSERT(parsed.service == "80");
     CPPUNIT_ASSERT(parsed.target == "/");
 }
 
@@ -74,7 +74,6 @@ HttpTester::test_parse_https_url_no_service() {
     CPPUNIT_ASSERT(parsed.url == url);
     CPPUNIT_ASSERT(parsed.protocol == "https");
     CPPUNIT_ASSERT(parsed.host == "jami.net");
-    CPPUNIT_ASSERT(parsed.service == "https");
     CPPUNIT_ASSERT(parsed.target == "/");
 }
 
@@ -88,8 +87,7 @@ HttpTester::test_parse_url_no_prefix_no_target() {
     CPPUNIT_ASSERT(parsed.url == url);
     CPPUNIT_ASSERT(parsed.protocol == "http");
     CPPUNIT_ASSERT(parsed.host == "google.com");
-    CPPUNIT_ASSERT(parsed.service == "80");
-    CPPUNIT_ASSERT(parsed.target == "/");
+    CPPUNIT_ASSERT(parsed.target == "");
 }
 
 void
@@ -116,7 +114,6 @@ HttpTester::test_parse_url_query() {
     CPPUNIT_ASSERT(parsed.url == url);
     CPPUNIT_ASSERT(parsed.protocol == "http");
     CPPUNIT_ASSERT(parsed.host == "google.com");
-    CPPUNIT_ASSERT(parsed.service == "80");
     CPPUNIT_ASSERT(parsed.target == "/?key=1");
     CPPUNIT_ASSERT(parsed.query == "key=1");
 }
@@ -131,7 +128,6 @@ HttpTester::test_parse_url_fragment() {
     CPPUNIT_ASSERT(parsed.url == url);
     CPPUNIT_ASSERT(parsed.protocol == "http");
     CPPUNIT_ASSERT(parsed.host == "google.com");
-    CPPUNIT_ASSERT(parsed.service == "80");
     CPPUNIT_ASSERT(parsed.target == "/?key=1");
     CPPUNIT_ASSERT(parsed.query == "key=1");
     CPPUNIT_ASSERT(parsed.fragment == "#some-important-id");
@@ -147,7 +143,6 @@ HttpTester::test_parse_url_ipv4() {
     CPPUNIT_ASSERT(parsed.url == url);
     CPPUNIT_ASSERT(parsed.protocol == "http");
     CPPUNIT_ASSERT(parsed.host == "172.217.13.132");
-    CPPUNIT_ASSERT(parsed.service == "80");
     CPPUNIT_ASSERT(parsed.target == "/");
 }
 
@@ -161,8 +156,6 @@ HttpTester::test_parse_url_no_prefix_no_target_ipv4() {
     CPPUNIT_ASSERT(parsed.url == url);
     CPPUNIT_ASSERT(parsed.protocol == "http");
     CPPUNIT_ASSERT(parsed.host == "172.217.13.132");
-    CPPUNIT_ASSERT(parsed.service == "80");
-    CPPUNIT_ASSERT(parsed.target == "/");
 }
 
 void
@@ -189,7 +182,6 @@ HttpTester::test_parse_url_ipv6() {
     CPPUNIT_ASSERT(parsed.url == url);
     CPPUNIT_ASSERT(parsed.protocol == "http");
     CPPUNIT_ASSERT(parsed.host == "2607:f8b0:4006:804::2004");
-    CPPUNIT_ASSERT(parsed.service == "80");
     CPPUNIT_ASSERT(parsed.target == "/");
 }
 
@@ -203,8 +195,6 @@ HttpTester::test_parse_url_no_prefix_no_target_ipv6() {
     CPPUNIT_ASSERT(parsed.url == url);
     CPPUNIT_ASSERT(parsed.protocol == "http");
     CPPUNIT_ASSERT(parsed.host == "2607:f8b0:4006:804::2004");
-    CPPUNIT_ASSERT(parsed.service == "80");
-    CPPUNIT_ASSERT(parsed.target == "/");
 }
 
 void
@@ -234,13 +224,13 @@ HttpTester::test_send_json() {
     Json::Value resp_val;
 
     // Act
-    auto request = std::make_shared<dht::http::Request>(serverProxy->io_context(), 
+    auto request = std::make_shared<dht::http::Request>(serverProxy->io_context(),
         "http://127.0.0.1:8080/key",
         json,
-        [&](Json::Value value, unsigned int status_code) {
+        [&](Json::Value value, const dht::http::Response& response) {
             std::lock_guard<std::mutex> lk(cv_m);
             resp_val = std::move(value);
-            status = status_code;
+            status = response.status_code;
             done = true;
             cv.notify_all();
         });

tools/CMakeLists.txt

@@ -1,38 +1,35 @@
-
-add_executable (dhtnode dhtnode.cpp tools_common.h)
-add_executable (dhtscanner dhtscanner.cpp tools_common.h)
-add_executable (dhtchat dhtchat.cpp tools_common.h)
-add_executable (perftest perftest.cpp tools_common.h)
-
-target_link_libraries (dhtnode LINK_PUBLIC ${READLINE_LIBRARIES})
-target_link_libraries (dhtscanner LINK_PUBLIC ${READLINE_LIBRARIES})
-target_link_libraries (dhtchat LINK_PUBLIC ${READLINE_LIBRARIES})
-target_link_libraries (perftest LINK_PUBLIC ${READLINE_LIBRARIES})
-
 if (OPENDHT_SHARED)
-	target_link_libraries (dhtnode LINK_PUBLIC opendht)
-	target_link_libraries (dhtscanner LINK_PUBLIC opendht)
-	target_link_libraries (dhtchat LINK_PUBLIC opendht)
-	target_link_libraries (perftest LINK_PUBLIC opendht)
+    set (OPENDHT_LIBS opendht)
 else ()
-	target_link_libraries (dhtnode LINK_PUBLIC opendht-static)
-	target_link_libraries (dhtscanner LINK_PUBLIC opendht-static)
-	target_link_libraries (dhtchat LINK_PUBLIC opendht-static)
-	target_link_libraries (perftest LINK_PUBLIC opendht-static)
+    set (OPENDHT_LIBS opendht-static)
+    if (MSVC)
+        set (MSC_COMPAT_SOURCES ${MSC_COMPAT_DIR}/wingetopt.c)
+    endif ()
 endif ()
 
+function (configure_tool name extra_files)
+    add_executable (${name} ${name}.cpp ${extra_files})
+    target_link_libraries (${name} LINK_PUBLIC ${READLINE_LIBRARIES})
+    target_link_libraries (${name} LINK_PUBLIC ${OPENDHT_LIBS})
+    if (MSVC)
+        target_sources(${name} PRIVATE ${MSC_COMPAT_SOURCES})
+        target_include_directories (${name} PRIVATE ${MSC_COMPAT_DIR})
+    endif ()
+endfunction ()
+
+configure_tool (dhtnode tools_common.h)
+configure_tool (dhtscanner tools_common.h)
+configure_tool (dhtchat tools_common.h)
+if (NOT MSVC)
+    configure_tool (perftest tools_common.h)
+endif ()
 if (OPENDHT_HTTP)
-	add_executable (durl durl.cpp)
-	if (OPENDHT_SHARED)
-		target_link_libraries (durl LINK_PUBLIC opendht)
-	else ()
-		target_link_libraries (durl LINK_PUBLIC opendht-static)
-	endif ()
-endif()
+    configure_tool (durl tools_common.h)
+endif ()
 
 if (OPENDHT_C)
-	add_executable (dhtcnode dhtcnode.c)
-	target_link_libraries (dhtcnode LINK_PUBLIC opendht-c ${READLINE_LIBRARIES})
+    add_executable (dhtcnode dhtcnode.c)
+    target_link_libraries (dhtcnode LINK_PUBLIC opendht-c ${READLINE_LIBRARIES})
 endif ()
 
 if (NOT DEFINED CMAKE_INSTALL_BINDIR)
@@ -42,25 +39,25 @@ endif ()
 install (TARGETS dhtnode dhtscanner dhtchat RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
 
 if (OPENDHT_SYSTEMD)
-	execute_process(COMMAND ${PKG_CONFIG_EXECUTABLE} systemd --variable=systemdsystemunitdir
-					OUTPUT_VARIABLE SYSTEMD_UNIT_INSTALL_DIR)
-	string(REGEX REPLACE "[ \t\n]+" "" SYSTEMD_UNIT_INSTALL_DIR "${SYSTEMD_UNIT_INSTALL_DIR}")
-	set (systemdunitdir "${SYSTEMD_UNIT_INSTALL_DIR}")
+    execute_process(COMMAND ${PKG_CONFIG_EXECUTABLE} systemd --variable=systemdsystemunitdir
+                    OUTPUT_VARIABLE SYSTEMD_UNIT_INSTALL_DIR)
+    string(REGEX REPLACE "[ \t\n]+" "" SYSTEMD_UNIT_INSTALL_DIR "${SYSTEMD_UNIT_INSTALL_DIR}")
+    set (systemdunitdir "${SYSTEMD_UNIT_INSTALL_DIR}")
 
-	configure_file (
-		systemd/dhtnode.service.in
-		systemd/dhtnode.service
-		@ONLY
-	)
-	install (FILES ${CMAKE_CURRENT_BINARY_DIR}/systemd/dhtnode.service DESTINATION ${systemdunitdir})
-	install (FILES systemd/dhtnode.conf DESTINATION ${sysconfdir})
-	if (OPENDHT_PYTHON)
-		configure_file (
-			systemd/dhtcluster.service.in
-			systemd/dhtcluster.service
-			@ONLY
-		)
-		install (FILES ${CMAKE_CURRENT_BINARY_DIR}/systemd/dhtcluster.service DESTINATION ${systemdunitdir})
-		install (FILES systemd/dhtcluster.conf DESTINATION ${sysconfdir})
-	endif()
+    configure_file (
+        systemd/dhtnode.service.in
+        systemd/dhtnode.service
+        @ONLY
+    )
+    install (FILES ${CMAKE_CURRENT_BINARY_DIR}/systemd/dhtnode.service DESTINATION ${systemdunitdir})
+    install (FILES systemd/dhtnode.conf DESTINATION ${sysconfdir})
+    if (OPENDHT_PYTHON)
+        configure_file (
+            systemd/dhtcluster.service.in
+            systemd/dhtcluster.service
+            @ONLY
+        )
+        install (FILES ${CMAKE_CURRENT_BINARY_DIR}/systemd/dhtcluster.service DESTINATION ${systemdunitdir})
+        install (FILES systemd/dhtcluster.conf DESTINATION ${sysconfdir})
+    endif()
 endif ()

tools/dhtchat.cpp

@@ -54,7 +54,7 @@ main(int argc, char **argv)
         print_usage();
         return 0;
     }
-#ifdef WIN32_NATIVE
+#ifdef _MSC_VER
     gnutls_global_init();
 #endif
 
@@ -64,10 +64,10 @@ main(int argc, char **argv)
         auto dhtConf = getDhtConfig(params);
         dht.run(params.port, dhtConf.first, std::move(dhtConf.second));
 
-        if (not params.bootstrap.first.empty())
-            dht.bootstrap(params.bootstrap.first.c_str(), params.bootstrap.second.c_str());
+        if (not params.bootstrap.empty())
+            dht.bootstrap(params.bootstrap);
 
-        print_node_info(dht, params);
+        print_node_info(dht.getNodeInfo());
         std::cout << "  type 'c {hash}' to join a channel" << std::endl << std::endl;
 
         bool connected {false};
@@ -76,7 +76,7 @@ main(int argc, char **argv)
 
         const InfoHash myid = dht.getId();
 
-#ifndef WIN32_NATIVE
+#ifndef _MSC_VER
         // using the GNU History API
         using_history();
 #endif
@@ -144,7 +144,7 @@ main(int argc, char **argv)
 
     std::cout << std::endl <<  "Stopping node..." << std::endl;
     dht.join();
-#ifdef WIN32_NATIVE
+#ifdef _MSC_VER
     gnutls_global_deinit();
 #endif
     return 0;

tools/dhtnode.cpp

@@ -114,10 +114,10 @@ void cmd_loop(std::shared_ptr<DhtRunner>& node, dht_params& params
 #endif
 )
 {
-    print_node_info(*node, params);
+    print_node_info(node->getNodeInfo());
     std::cout << " (type 'h' or 'help' for a list of possible commands)" << std::endl << std::endl;
 
-#ifndef WIN32_NATIVE
+#ifndef _MSC_VER
     // using the GNU History API
     using_history();
 #endif
@@ -143,30 +143,23 @@ void cmd_loop(std::shared_ptr<DhtRunner>& node, dht_params& params
             print_help();
             continue;
         } else if (op == "ll") {
-            auto nodeInfo = node->getNodeInfo();
-            print_node_info(*node, params);
-            std::cout << "Scheduler size:" << nodeInfo.metrics.scheduler_size << std::endl;
-            std::cout << "RateLimiter size:" << nodeInfo.metrics.rate_limiter_size << std::endl;
-            std::cout << "ReportedAddr count:" << nodeInfo.metrics.reported_addr_num << std::endl;
-            std::cout << "Node cache size:" << nodeInfo.metrics.node_cache_size << std::endl;
-            std::cout << "Store size:" << nodeInfo.metrics.store_size << std::endl;
-            std::cout << "Store quota size:" << nodeInfo.metrics.store_quota_size << std::endl;
-            std::cout << "Global request count:" << nodeInfo.metrics.request_count << std::endl;
-
-            std::cout << nodeInfo.ongoing_ops << " ongoing operations" << std::endl;
-            std::cout << "IPv4 stats:" << std::endl;
-            std::cout << nodeInfo.ipv4.toString() << std::endl;
-            std::cout << "IPv6 stats:" << std::endl;
-            std::cout << nodeInfo.ipv6.toString() << std::endl;
+            node->getNodeInfo([&](const std::shared_ptr<dht::NodeInfo>& nodeInfo) {
+                print_node_info(*nodeInfo);
+                std::cout << nodeInfo->ongoing_ops << " ongoing operations" << std::endl;
+                std::cout << "IPv4 stats:" << std::endl;
+                std::cout << nodeInfo->ipv4.toString() << std::endl;
+                std::cout << "IPv6 stats:" << std::endl;
+                std::cout << nodeInfo->ipv6.toString() << std::endl;
 #ifdef OPENDHT_PROXY_SERVER
-            for (const auto& proxy : proxies) {
-                std::cout << "Stats for proxy server on port " << proxy.first << std::endl;
-                if (auto stats = proxy.second->stats())
-                    std::cout << "  " << stats->toString() << std::endl;
-                else
-                    std::cout << "  (stats not available yet)" << std::endl;                
-            }
+                for (const auto& proxy : proxies) {
+                    std::cout << "Stats for proxy server on port " << proxy.first << std::endl;
+                    if (auto stats = proxy.second->stats())
+                        std::cout << "  " << stats->toString() << std::endl;
+                    else
+                        std::cout << "  (stats not available yet)" << std::endl;                
+                }
 #endif
+            });
             continue;
         } else if (op == "lr") {
             std::cout << "IPv4 routing table:" << std::endl;
@@ -198,14 +191,10 @@ void cmd_loop(std::shared_ptr<DhtRunner>& node, dht_params& params
             continue;
         } else if (op == "b") {
             iss >> idstr;
-            try {
-                auto addr = splitPort(idstr);
-                if (not addr.first.empty() and addr.second.empty())
-                    addr.second = std::to_string(dht::net::DHT_DEFAULT_PORT);
-                node->bootstrap(addr.first.c_str(), addr.second.c_str());
-            } catch (const std::exception& e) {
-                std::cerr << e.what() << std::endl;
-            }
+            if (not idstr.empty())
+                node->bootstrap(idstr);
+            else
+                std::cerr << "No service provided. Syntax: b hostname:port" << std::endl;
             continue;
         } else if (op == "log") {
             iss >> idstr;
@@ -229,14 +218,11 @@ void cmd_loop(std::shared_ptr<DhtRunner>& node, dht_params& params
                 iss >> idstr;
 #endif // OPENDHT_PUSH_NOTIFICATIONS
             try {
-                unsigned int port = std::stoi(idstr);
-                proxies.emplace(port, std::unique_ptr<DhtProxyServer>(
-                    new DhtProxyServer(
-                        dht::crypto::Identity{}, node, port
-#ifdef OPENDHT_PUSH_NOTIFICATIONS
-                        ,pushServer
-#endif
-                )));
+                in_port_t port = std::stoi(idstr);
+                ProxyServerConfig serverConfig;
+                serverConfig.port = port;
+                serverConfig.pushServer = pushServer;
+                proxies.emplace(port, std::make_unique<DhtProxyServer>(node, serverConfig));
             } catch (...) { }
             continue;
         } else if (op == "psx") {
@@ -247,13 +233,12 @@ void cmd_loop(std::shared_ptr<DhtRunner>& node, dht_params& params
 #endif // OPENDHT_PUSH_NOTIFICATIONS
             try {
                 if (params.proxy_id.first and params.proxy_id.second){
-                    unsigned int port = std::stoi(idstr);
-                    proxies.emplace(port, std::unique_ptr<DhtProxyServer>(
-                        new DhtProxyServer(params.proxy_id, node, port
-#ifdef OPENDHT_PUSH_NOTIFICATIONS
-                                           ,pushServer
-#endif
-                    )));
+                    in_port_t port = std::stoi(idstr);
+                    ProxyServerConfig serverConfig;
+                    serverConfig.identity = params.proxy_id;
+                    serverConfig.port = port;
+                    serverConfig.pushServer = pushServer;
+                    proxies.emplace(port, std::make_unique<DhtProxyServer>(node, serverConfig));
                 }
                 else {
                     std::cerr << "Missing Identity private key or certificate" << std::endl;
@@ -522,7 +507,7 @@ void cmd_loop(std::shared_ptr<DhtRunner>& node, dht_params& params
 int
 main(int argc, char **argv)
 {
-#ifdef WIN32_NATIVE
+#ifdef _MSC_VER
     gnutls_global_init();
 #endif
     auto params = parseArgs(argc, argv);
@@ -545,25 +530,32 @@ main(int argc, char **argv)
         auto dhtConf = getDhtConfig(params);
         node->run(params.port, dhtConf.first, std::move(dhtConf.second));
 
-        if (not params.bootstrap.first.empty()) {
-            std::cout << "Bootstrap: " << params.bootstrap.first << ":" << params.bootstrap.second << std::endl;
-            node->bootstrap(params.bootstrap.first.c_str(), params.bootstrap.second.c_str());
+        if (not params.bootstrap.empty()) {
+            std::cout << "Bootstrap: " << params.bootstrap << std::endl;
+            node->bootstrap(params.bootstrap);
         }
 
 #ifdef OPENDHT_PROXY_SERVER
         std::map<in_port_t, std::unique_ptr<DhtProxyServer>> proxies;
 #endif
-        if (params.proxyserverssl and params.proxy_id.first and params.proxy_id.second){
+        if (params.proxyserver or params.proxyserverssl) {
 #ifdef OPENDHT_PROXY_SERVER
-            proxies.emplace(params.proxyserverssl, std::unique_ptr<DhtProxyServer>(
-                new DhtProxyServer(params.proxy_id,
-                                   node, params.proxyserverssl, params.pushserver, dhtConf.second.logger)));
-        }
-        if (params.proxyserver) {
-            proxies.emplace(params.proxyserver, std::unique_ptr<DhtProxyServer>(
-                new DhtProxyServer(
-                    dht::crypto::Identity{},
-                    node, params.proxyserver, params.pushserver, dhtConf.second.logger)));
+            ProxyServerConfig serverConfig;
+            serverConfig.pushServer = params.pushserver;
+            if (params.proxyserverssl and params.proxy_id.first and params.proxy_id.second){
+                serverConfig.identity = params.proxy_id;
+                serverConfig.port = params.proxyserverssl;
+                if (not params.persist_path.empty())
+                    serverConfig.persistStatePath = params.persist_path + '_' + std::to_string(serverConfig.port);
+                proxies.emplace(params.proxyserverssl, std::make_unique<DhtProxyServer>(node, serverConfig, dhtConf.second.logger));
+            }
+            if (params.proxyserver) {
+                serverConfig.identity = {};
+                serverConfig.port = params.proxyserver;
+                if (not params.persist_path.empty())
+                    serverConfig.persistStatePath = params.persist_path + '_' + std::to_string(serverConfig.port);
+                proxies.emplace(params.proxyserver, std::make_unique<DhtProxyServer>(node, serverConfig, dhtConf.second.logger));
+            }
 #else
             std::cerr << "DHT proxy server requested but OpenDHT built without proxy server support." << std::endl;
             exit(EXIT_FAILURE);
@@ -598,7 +590,7 @@ main(int argc, char **argv)
     cv.wait(lk, [&](){ return done; });
 
     node->join();
-#ifdef WIN32_NATIVE
+#ifdef _MSC_VER
     gnutls_global_deinit();
 #endif
     return 0;

tools/dhtproxy_stats.py

@@ -7,7 +7,7 @@ stats_total = {"users":0, "pushListenersCount":0, "listenCount":0, "totalListene
 
 for i in range(80,101):
     print("Collecting stats for proxy " + str(i))
-    response = requests.request('STATS', 'http://dhtproxy.jami.net:' + str(i))
+    response = requests.request('GET', 'http://127.0.0.1:' + str(i) + '/node/stats')
 
     if response.status_code == 200:
         result = response.json()
@@ -38,20 +38,17 @@ for i in range(80,101):
         except:
             pass
         try:
-            total = 0
-            for h,v in result["puts"].items():
-                total += int(v)
-            stats['totalPermanentPuts'] = total
-            stats_total['totalPermanentPuts'] += total
+            stats['totalPermanentPuts'] = int(result["totalPermanentPuts"])
+            stats_total['totalPermanentPuts'] += int(result["totalPermanentPuts"])
         except:
             pass
-        
+
         stats['timestamp'] = str(ts)
 
-        with open("stats_proxy_" + str(i), "a") as stat_file:
-            stat_file.write(str(stats))
-            stat_file.write('\n')
+        #with open("stats_proxy_" + str(i), "a") as stat_file:
+        #    stat_file.write(str(stats))
+        #    stat_file.write('\n')
 
-with open("stats_proxy_total", "a") as stat_file:
+with open("stats_proxy_total", "w") as stat_file:
     stat_file.write(str(stats_total))
     stat_file.write('\n')

tools/dhtscanner.cpp

@@ -77,7 +77,7 @@ step(DhtRunner& dht, std::atomic_uint& done, std::shared_ptr<NodeSet> all_nodes,
 int
 main(int argc, char **argv)
 {
-#ifdef WIN32_NATIVE
+#ifdef _MSC_VER
     gnutls_global_init();
 #endif
     auto params = parseArgs(argc, argv);
@@ -91,10 +91,10 @@ main(int argc, char **argv)
         auto dhtConf = getDhtConfig(params);
         dht.run(params.port, dhtConf.first, std::move(dhtConf.second));
 
-        if (not params.bootstrap.first.empty())
-            dht.bootstrap(params.bootstrap.first.c_str(), params.bootstrap.second.c_str());
+        if (not params.bootstrap.empty())
+            dht.bootstrap(params.bootstrap);
 
-        print_node_info(dht, params);
+        print_node_info(dht.getNodeInfo());
         std::cout << "Scanning network..." << std::endl;
         auto all_nodes = std::make_shared<NodeSet>();
 
@@ -123,7 +123,7 @@ main(int argc, char **argv)
     }
 
     dht.join();
-#ifdef WIN32_NATIVE
+#ifdef _MSC_VER
     gnutls_global_deinit();
 #endif
     return 0;

tools/durl.cpp

@@ -20,7 +20,11 @@
 #include <opendht/log.h>
 
 #include <asio/io_context.hpp>
+#ifndef _MSC_VER
 #include <getopt.h>
+#else
+#include "wingetopt.h"
+#endif
 
 using namespace dht;
 

tools/perftest.cpp

@@ -132,7 +132,7 @@ benchPingPong(unsigned netSize, unsigned n_parallel) {
 int
 main(int argc, char **argv)
 {
-#ifdef WIN32_NATIVE
+#ifdef _MSC_VER
     gnutls_global_init();
 #endif
     auto params = parseArgs(argc, argv);
@@ -173,7 +173,7 @@ main(int argc, char **argv)
     std::cout << print_duration(totalTime/totalOps) << " per rt, "
             << totalOps/std::chrono::duration<double>(totalTime).count() << " ping per s" << std::endl << std::endl;
 
-#ifdef WIN32_NATIVE
+#ifdef _MSC_VER
     gnutls_global_deinit();
 #endif
     return 0;

tools/tools_common.h

@@ -32,13 +32,14 @@
 #include <opendht/dht_proxy_server.h>
 #endif
 
-#ifndef WIN32_NATIVE
+#ifndef _MSC_VER
 #include <getopt.h>
 #include <readline/readline.h>
 #include <readline/history.h>
 #else
 #define SIGHUP 0
 #include "wingetopt.h"
+#include <io.h>
 #endif
 
 #include <sys/types.h>
@@ -124,7 +125,7 @@ struct dht_params {
     bool log {false};
     bool syslog {false};
     std::string logfile {};
-    std::pair<std::string, std::string> bootstrap {};
+    std::string bootstrap {};
     dht::NetId network {0};
     in_port_t port {0};
     in_port_t proxyserver {0};
@@ -170,6 +171,8 @@ getDhtConfig(dht_params& params)
     if (params.no_rate_limit) {
         config.dht_config.node_config.max_req_per_sec = -1;
         config.dht_config.node_config.max_peer_req_per_sec = -1;
+        config.dht_config.node_config.max_searches = -1;
+        config.dht_config.node_config.max_store_size = -1;
     }
 
     dht::DhtRunner::Context context {};
@@ -189,16 +192,14 @@ getDhtConfig(dht_params& params)
     return {std::move(config), std::move(context)};
 }
 
-void print_node_info(const dht::DhtRunner& node, const dht_params& params) {
-    std::cout << "OpenDHT node " << node.getNodeId() << " running on ";
-    auto port4 = node.getBoundPort(AF_INET);
-    auto port6 = node.getBoundPort(AF_INET6);
-    if (port4 == port6)
-        std::cout << "port " << port4 << std::endl;
+void print_node_info(const dht::NodeInfo& info) {
+    std::cout << "OpenDHT node " << info.node_id << " running on ";
+    if (info.bound4 == info.bound6)
+        std::cout << "port " << info.bound4 << std::endl;
     else
-        std::cout << "IPv4 port " << port4 << ", IPv6 port " << port6 << std::endl;
-    if (params.id.first)
-        std::cout << "Public key ID " << node.getId() << std::endl;
+        std::cout << "IPv4 port " << info.bound4 << ", IPv6 port " << info.bound6 << std::endl;
+    if (info.id)
+        std::cout << "Public key ID " << info.id << std::endl;
 }
 
 static const constexpr struct option long_options[] = {
@@ -289,10 +290,7 @@ parseArgs(int argc, char **argv) {
             params.public_stable = true;
             break;
         case 'b':
-            params.bootstrap = dht::splitPort((optarg[0] == '=') ? optarg+1 : optarg);
-            if (not params.bootstrap.first.empty() and params.bootstrap.second.empty()) {
-                params.bootstrap.second = std::to_string(dht::net::DHT_DEFAULT_PORT);
-            }
+            params.bootstrap = (optarg[0] == '=') ? optarg+1 : optarg;
             break;
         case 'V':
             params.version = true;
@@ -380,7 +378,7 @@ static const constexpr char* PROMPT = ">> ";
 std::string
 readLine(const char* prefix = PROMPT)
 {
-#ifndef WIN32_NATIVE
+#ifndef _MSC_VER
     const char* line_read = readline(prefix);
     if (line_read && *line_read)
         add_history(line_read);
@@ -427,7 +425,7 @@ void signal_handler(int sig)
 
 void setupSignals()
 {
-#ifndef WIN32_NATIVE
+#ifndef _MSC_VER
     signal(SIGCHLD,SIG_IGN); /* ignore child */
     signal(SIGTSTP,SIG_IGN); /* ignore tty signals */
     signal(SIGTTOU,SIG_IGN);
@@ -440,7 +438,7 @@ void setupSignals()
 
 void daemonize()
 {
-#ifndef WIN32_NATIVE
+#ifndef _MSC_VER
     pid_t pid = fork();
     if (pid < 0) exit(EXIT_FAILURE);
     if (pid > 0) exit(EXIT_SUCCESS);