build: add light mode

Inside the if-statement, the log message will always print zero.
Confusingly, its the same message as the one in the loop above it.
Make the message distinct.

.github/workflows/ccpp.yml

@@ -0,0 +1,34 @@
+name: C/C++ CI
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v1
+    - name: deps
+      run: |
+        sudo apt install 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
+    - name: autogen
+      run: ./autogen.sh
+    - name: argon2
+      run: |
+        cd argon2 && make && sudo make install && cd ..
+    - name: asio
+      run: |
+        wget https://github.com/aberaud/asio/archive/b2b7a1c166390459e1c169c8ae9ef3234b361e3f.tar.gz \
+        && tar -xvf b2b7a1c166390459e1c169c8ae9ef3234b361e3f.tar.gz && cd asio-b2b7a1c166390459e1c169c8ae9ef3234b361e3f/asio \
+        && ./autogen.sh && ./configure --prefix=/usr --without-boost --disable-examples --disable-tests  \
+        && sudo make install \
+        && cd ../../ && rm -rf asio*
+    - name: configure
+      run: ./configure
+    - name: make
+      run: make
+    - name: make check
+      run: make check

CMakeLists.txt

@@ -1,89 +1,111 @@
 cmake_minimum_required (VERSION 3.1)
 project (opendht)
-set (opendht_VERSION_MAJOR 1)
-set (opendht_VERSION_MINOR 10.1)
+set (opendht_VERSION_MAJOR 2)
+set (opendht_VERSION_MINOR 0.0)
 set (opendht_VERSION ${opendht_VERSION_MAJOR}.${opendht_VERSION_MINOR})
 set (PACKAGE_VERSION ${opendht_VERSION})
 set (VERSION "${opendht_VERSION}")
 
 # Options
+option (OPENDHT_LIGHT "Build minimal version of the library" OFF)
+
 option (OPENDHT_STATIC "Build static library" ON)
+
 option (OPENDHT_SHARED "Build shared library" ON)
-option (OPENDHT_LOG "Build with logs" ON)
 option (OPENDHT_PYTHON "Build Python bindings" OFF)
 option (OPENDHT_TOOLS "Build DHT tools" ON)
 option (OPENDHT_SYSTEMD "Install systemd module" OFF)
 option (OPENDHT_ARGON2 "Use included argon2 sources" OFF)
-option (OPENDHT_LTO "Build with LTO" OFF)
-option (OPENDHT_SANITIZE "Build with address sanitizer and stack protector" OFF)
 option (OPENDHT_PROXY_SERVER "Enable DHT proxy server, use Restinio and jsoncpp" OFF)
 option (OPENDHT_PUSH_NOTIFICATIONS "Enable push notifications support" OFF)
 option (OPENDHT_PROXY_SERVER_IDENTITY "Allow clients to use the node identity" OFF)
 option (OPENDHT_PROXY_CLIENT "Enable DHT proxy client, use Restinio and jsoncpp" OFF)
 option (OPENDHT_PROXY_OPENSSL "Build DHT proxy with OpenSSL" ON)
 option (OPENDHT_PROXY_HTTP_PARSER_FORK "Build DHT proxy with custom http_parser to support old API" OFF)
+option (OPENDHT_PEER_DISCOVERY "Enable multicast peer discovery" ON)
 option (OPENDHT_INDEX "Build DHT indexation feature" OFF)
+option (OPENDHT_C "Build C bindings" OFF)
 option (OPENDHT_TESTS "Add unit tests executable" OFF)
-option (OPENDHT_C "Build C bindings" ON)
+
+if (OPENDHT_LIGHT)
+    set(OPENDHT_SHARED OFF)
+    set(OPENDHT_TOOLS OFF)
+    set(OPENDHT_PROXY_SERVER OFF)
+    set(OPENDHT_PROXY_CLIENT OFF)
+    set(OPENDHT_PEER_DISCOVERY OFF)
+    set(OPENDHT_INDEX OFF)
+    set(OPENDHT_PYTHON OFF)
+    add_definitions(-DOPENDHT_LIGHT)
+endif()
+
+option (OPENDHT_LOG "Build with logs" ON)
+option (OPENDHT_LTO "Build with LTO" OFF)
+option (OPENDHT_SANITIZE "Build with address sanitizer and stack protector" OFF)
 
 find_package(Doxygen)
 option (OPENDHT_DOCUMENTATION "Create and install the HTML based API documentation (requires Doxygen)" ${DOXYGEN_FOUND})
 
 # Dependencies
 list (APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
-find_package (Threads)
 find_package (PkgConfig)
-find_package (GnuTLS 3.3 REQUIRED)
-pkg_search_module (Nettle nettle)
 find_package (Msgpack 1.2 REQUIRED)
-if (OPENDHT_TOOLS)
-    find_package (Readline 6 REQUIRED)
-endif ()
-if (NOT OPENDHT_ARGON2)
-    find_package(PkgConfig)
-    pkg_search_module(argon2 libargon2)
-    if (argon2_FOUND)
-        message("-- 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_PROXY_SERVER OR OPENDHT_PROXY_CLIENT)
-    find_package(Restinio REQUIRED)
-    if (Restinio_FOUND)
-        add_definitions(-DASIO_STANDALONE)
-        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 OPENDHT_LIGHT)
+    find_package (Threads)
+    find_package (GnuTLS 3.3 REQUIRED)
+    pkg_search_module (Nettle nettle)
+    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(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)
+
+    if (OPENDHT_PROXY_SERVER OR OPENDHT_PROXY_CLIENT)
+        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()
+    if (OPENDHT_PROXY_SERVER OR OPENDHT_PROXY_CLIENT OR OPENDHT_PEER_DISCOVERY)
+        add_definitions(-DASIO_STANDALONE)
     endif()
 endif()
 
@@ -95,6 +117,7 @@ if (OPENDHT_SANITIZE)
     set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fstack-protector-strong")
 endif ()
 set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DMSGPACK_DISABLE_LEGACY_NIL -DMSGPACK_DISABLE_LEGACY_CONVERT")
+
 if (NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE Release)
 endif ()
@@ -155,7 +178,6 @@ set (top_srcdir "${CMAKE_CURRENT_SOURCE_DIR}")
 list (APPEND opendht_SOURCES
     src/utils.cpp
     src/infohash.cpp
-    src/crypto.cpp
     src/default_types.cpp
     src/node.cpp
     src/value.cpp
@@ -173,12 +195,7 @@ list (APPEND opendht_SOURCES
     src/routing_table.cpp
     src/node_cache.cpp
     src/network_engine.cpp
-    src/securedht.cpp
-    src/dhtrunner.cpp
     src/log.cpp
-    src/peer_discovery.cpp
-    src/network_utils.cpp
-    src/thread_pool.cpp
 )
 
 list (APPEND opendht_HEADERS
@@ -186,7 +203,6 @@ list (APPEND opendht_HEADERS
     include/opendht/utils.h
     include/opendht/sockaddr.h
     include/opendht/rng.h
-    include/opendht/crypto.h
     include/opendht/infohash.h
     include/opendht/default_types.h
     include/opendht/node.h
@@ -202,12 +218,33 @@ list (APPEND opendht_HEADERS
     include/opendht/securedht.h
     include/opendht/log.h
     include/opendht/log_enable.h
-    include/opendht/peer_discovery.h
-    include/opendht/thread_pool.h
-    include/opendht/network_utils.h
     include/opendht.h
 )
 
+if (NOT OPENDHT_LIGHT)
+    list (APPEND opendht_SOURCES
+        src/crypto.cpp
+        src/securedht.cpp
+        src/dhtrunner.cpp
+        src/network_utils.cpp
+        src/thread_pool.cpp
+    )
+
+    list (APPEND opendht_HEADERS
+        include/opendht/crypto.h
+        include/opendht/securedht.h
+        include/opendht/dhtrunner.h
+        include/opendht/thread_pool.h
+        include/opendht/network_utils.h
+    )
+endif()
+
+if (OPENDHT_PEER_DISCOVERY)
+    list (APPEND opendht_SOURCES src/peer_discovery.cpp)
+    list (APPEND opendht_HEADERS include/opendht/peer_discovery.h)
+    add_definitions(-DOPENDHT_PEER_DISCOVERY)
+endif()
+
 if (OPENDHT_PYTHON)
     message("Indexation enabled since it is required for Python support")
     set(OPENDHT_INDEX ON)
@@ -321,7 +358,12 @@ if (OPENDHT_C)
         c/opendht_c.h
     )
     target_compile_definitions(opendht-c PRIVATE OPENDHT_C_BUILD)
-    target_link_libraries(opendht-c opendht)
+    if (OPENDHT_SHARED)
+        target_link_libraries(opendht-c opendht)
+    else ()
+        target_link_libraries(opendht-c opendht-static)
+    endif ()
+
     # PkgConfig module
     configure_file (
         opendht-c.pc.in
@@ -362,46 +404,57 @@ install (FILES ${CMAKE_CURRENT_BINARY_DIR}/opendhtConfigVersion.cmake DESTINATIO
 
 # Unit tests
 if (OPENDHT_TESTS)
-  FIND_PACKAGE(Cppunit REQUIRED)
-  # unit testing
+    FIND_PACKAGE(Cppunit REQUIRED)
+    # unit testing
     list (APPEND test_FILES
-      tests/infohashtester.h
-      tests/infohashtester.cpp
-      tests/valuetester.h
-      tests/valuetester.cpp
-      tests/cryptotester.h
-      tests/cryptotester.cpp
-      tests/dhtrunnertester.h
-      tests/dhtrunnertester.cpp
-      tests/peerdiscoverytester.h
-      tests/peerdiscoverytester.cpp
-      tests/threadpooltester.h
-      tests/threadpooltester.cpp
+        tests/infohashtester.h
+        tests/infohashtester.cpp
+        tests/valuetester.h
+        tests/valuetester.cpp
     )
+    if (NOT OPENDHT_LIGHT)
+        list (APPEND test_FILES
+            tests/cryptotester.h
+            tests/cryptotester.cpp
+            tests/dhtrunnertester.h
+            tests/dhtrunnertester.cpp
+            tests/threadpooltester.h
+            tests/threadpooltester.cpp
+        )
+    endif()
     if (OPENDHT_PROXY_SERVER AND OPENDHT_PROXY_CLIENT)
-      list (APPEND test_FILES
-        tests/httptester.h
-        tests/httptester.cpp
-        tests/dhtproxytester.h
-        tests/dhtproxytester.cpp
-      )
+        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()
     add_executable(opendht_unit_tests
-      tests/tests_runner.cpp
-      ${test_FILES}
+        tests/tests_runner.cpp
+        ${test_FILES}
     )
     target_include_directories(opendht_unit_tests SYSTEM PRIVATE ${CPPUNIT_INCLUDE_DIRS})
     if (OPENDHT_SHARED)
-      target_link_libraries(opendht_unit_tests opendht)
+        target_link_libraries(opendht_unit_tests opendht)
     else ()
-      target_link_libraries(opendht_unit_tests opendht-static)
+        target_link_libraries(opendht_unit_tests opendht-static)
     endif ()
     target_link_libraries(opendht_unit_tests
        ${CMAKE_THREAD_LIBS_INIT}
        ${CPPUNIT_LIBRARIES}
        ${GNUTLS_LIBRARIES}
-       ssl crypto jsoncpp
+       ${Jsoncpp_LIBRARIES}
     )
+    if (OPENDHT_PROXY_OPENSSL)
+        target_link_libraries(opendht_unit_tests ${OPENSSL_LIBRARIES})
+    endif()
     enable_testing()
     add_test(TEST opendht_unit_tests)
 endif()

Makefile.am

@@ -16,9 +16,7 @@ if ENABLE_TESTS
 SUBDIRS += tests
 endif
 
-if HAVE_DOXYGEN
 SUBDIRS += doc
-endif
 
 ACLOCAL_AMFLAGS = -I m4
 

README.md

@@ -99,7 +99,7 @@ for r in results:
 - (optional) restinio used for the REST API.
 - (optional) jsoncpp 1.7.4-3+, used for the REST API.
 - Build tested with GCC 5.2+ (GNU/Linux, Windows with MinGW), Clang/LLVM (GNU/Linux, Android, macOS, iOS).
-- Build tested with Microsoft Visual Studio 2015
+- Build tested with Microsoft Visual Studio 2015, 2017, 2019
 
 ## Contact
 

c/opendht.cpp

@@ -2,14 +2,29 @@
 #include "opendht.h"
 
 using ValueSp = std::shared_ptr<dht::Value>;
+using PrivkeySp = std::shared_ptr<dht::crypto::PrivateKey>;
+using PubkeySp = std::shared_ptr<const dht::crypto::PublicKey>;
+using CertSp = std::shared_ptr<dht::crypto::Certificate>;
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 // dht::InfoHash
-const char* dht_infohash_print(const dht_infohash* h)
-{
+
+inline dht_infohash dht_infohash_to_c(const dht::InfoHash& h) {
+    dht_infohash ret;
+    *reinterpret_cast<dht::InfoHash*>(&ret) = h;
+    return ret;
+}
+
+inline dht_pkid dht_pkid_to_c(const dht::PkId& h) {
+    dht_pkid ret;
+    *reinterpret_cast<dht::PkId*>(&ret) = h;
+    return ret;
+}
+
+const char* dht_infohash_print(const dht_infohash* h) {
     return reinterpret_cast<const dht::InfoHash*>(h)->to_c_str();
 }
 
@@ -17,33 +32,36 @@ void dht_infohash_zero(dht_infohash* h) {
     *reinterpret_cast<dht::InfoHash*>(h) = dht::InfoHash{};
 }
 
-void dht_infohash_random(dht_infohash* h)
-{
+void dht_infohash_random(dht_infohash* h) {
     *reinterpret_cast<dht::InfoHash*>(h) = dht::InfoHash::getRandom();
 }
 
-void dht_infohash_get(dht_infohash* h, const uint8_t* dat, size_t dat_size)
-{
+void dht_infohash_get(dht_infohash* h, const uint8_t* dat, size_t dat_size) {
     *reinterpret_cast<dht::InfoHash*>(h) = dht::InfoHash::get(dat, dat_size);
 }
 
-bool dht_infohash_is_zero(const dht_infohash* h) {
-    return static_cast<bool>(*reinterpret_cast<const dht::InfoHash*>(h));
+void dht_infohash_get_from_string(dht_infohash* h, const char* dat) {
+    *reinterpret_cast<dht::InfoHash*>(h) = dht::InfoHash::get((const uint8_t*)dat, (size_t)strlen(dat));
 }
 
-const char* dht_pkid_print(const dht_pkid* h)
-{
+bool dht_infohash_is_zero(const dht_infohash* h) {
+    return !static_cast<bool>(*reinterpret_cast<const dht::InfoHash*>(h));
+}
+
+void dht_infohash_from_hex(dht_infohash* h, const char* dat) {
+    *h = dht_infohash_to_c(dht::InfoHash(std::string(dat, HASH_LEN*2)));
+}
+
+const char* dht_pkid_print(const dht_pkid* h) {
     return reinterpret_cast<const dht::PkId*>(h)->to_c_str();
 }
 
 // dht::Blob
-void dht_blob_delete(dht_blob* data)
-{
+void dht_blob_delete(dht_blob* data) {
     delete reinterpret_cast<dht::Blob*>(data);
 }
 
-dht_data_view dht_blob_get_data(const dht_blob* data)
-{
+dht_data_view dht_blob_get_data(const dht_blob* data) {
     dht_data_view view;
     view.data = reinterpret_cast<const dht::Blob*>(data)->data();
     view.size = reinterpret_cast<const dht::Blob*>(data)->size();
@@ -51,8 +69,7 @@ dht_data_view dht_blob_get_data(const dht_blob* data)
 }
 
 // dht::Value
-dht_data_view dht_value_get_data(const dht_value* data)
-{
+dht_data_view dht_value_get_data(const dht_value* data) {
     const ValueSp& vsp(*reinterpret_cast<const ValueSp*>(data));
     dht_data_view view;
     view.data = vsp->data.data();
@@ -60,6 +77,26 @@ dht_data_view dht_value_get_data(const dht_value* data)
     return view;
 }
 
+dht_value_id dht_value_get_id(const dht_value* data) {
+    const ValueSp& vsp(*reinterpret_cast<const ValueSp*>(data));
+    return vsp->id;
+}
+
+dht_publickey* dht_value_get_owner(const dht_value* data) {
+    const ValueSp& vsp(*reinterpret_cast<const ValueSp*>(data));
+    return vsp->owner ? reinterpret_cast<dht_publickey*>(new PubkeySp(vsp->owner)) : nullptr;
+}
+
+dht_infohash dht_value_get_recipient(const dht_value* data) {
+    const ValueSp& vsp(*reinterpret_cast<const ValueSp*>(data));
+    return dht_infohash_to_c(vsp->recipient);
+}
+
+const char* dht_value_get_user_type(const dht_value* data) {
+    const ValueSp& vsp(*reinterpret_cast<const ValueSp*>(data));
+    return vsp->user_type.c_str();
+}
+
 dht_value* dht_value_new(const uint8_t* data, size_t size) {
     return reinterpret_cast<dht_value*>(new ValueSp(std::make_shared<dht::Value>(data, size)));
 }
@@ -73,69 +110,140 @@ void dht_value_unref(dht_value* v) {
 }
 
 // dht::crypto::PublicKey
-dht_publickey* dht_publickey_new() {
-    return reinterpret_cast<dht_publickey*>(new dht::crypto::PublicKey);
-}
-
-void dht_publickey_delete(dht_publickey* pk) {
-    delete reinterpret_cast<dht::crypto::PublicKey*>(pk);
-}
-
-int dht_publickey_unpack(dht_publickey* pk, const uint8_t* dat, size_t dat_size) {
+dht_publickey* dht_publickey_import(const uint8_t* dat, size_t dat_size) {
     try {
-        reinterpret_cast<dht::crypto::PublicKey*>(pk)->unpack(dat, dat_size);
-    } catch (const dht::crypto::CryptoException& e) {
-        return -1;
-    }
-    return 0;
-}
-
-int dht_publickey_pack(dht_publickey* pk, char* out, size_t* outlen) {
-    return gnutls_pubkey_export(reinterpret_cast<dht::crypto::PublicKey*>(pk)->pk, GNUTLS_X509_FMT_DER, out, outlen);
-}
-
-dht_infohash dht_publickey_get_id(const dht_publickey* pk) {
-    dht_infohash h;
-    *reinterpret_cast<dht::InfoHash*>(&h) = reinterpret_cast<const dht::crypto::PublicKey*>(pk)->getId();
-    return h;
-}
-
-dht_pkid dht_publickey_get_long_id(const dht_publickey* pk) {
-    dht_pkid h;
-    *reinterpret_cast<dht::PkId*>(&h) = reinterpret_cast<const dht::crypto::PublicKey*>(pk)->getLongId();
-    return h;
-}
-
-bool dht_publickey_check_signature(const dht_publickey* pk, const char* data, size_t data_size, const char* signature, size_t signature_size) {
-    return reinterpret_cast<const dht::crypto::PublicKey*>(pk)->checkSignature((const uint8_t*)data, data_size, (const uint8_t*)signature, signature_size);
-}
-
-dht_blob* dht_publickey_encrypt(const dht_publickey* pk, const char* data, size_t data_size) {
-    auto rdata = new dht::Blob;
-    *rdata = reinterpret_cast<const dht::crypto::PublicKey*>(pk)->encrypt((const uint8_t*)data, data_size);
-    return (dht_blob*)rdata;
-}
-
-dht_privatekey* dht_privatekey_generate(unsigned key_length_bits) {
-    if (key_length_bits == 0)
-        key_length_bits = 4096;
-    return reinterpret_cast<dht_privatekey*>(new dht::crypto::PrivateKey(dht::crypto::PrivateKey::generate(key_length_bits)));
-}
-
-dht_privatekey* dht_privatekey_import(const uint8_t* dat, size_t dat_size, const char* password) {
-    try {
-        return reinterpret_cast<dht_privatekey*>(new dht::crypto::PrivateKey(dat, dat_size, password));
+        return reinterpret_cast<dht_publickey*>(new PubkeySp(std::make_shared<const dht::crypto::PublicKey>(dat, dat_size)));
     } catch (const dht::crypto::CryptoException& e) {
         return nullptr;
     }
 }
 
-dht_publickey* dht_privatekey_get_publickey(const dht_privatekey* key) {
-    return reinterpret_cast<dht_publickey*>(new dht::crypto::PublicKey(reinterpret_cast<const dht::crypto::PrivateKey*>(key)->getPublicKey()));
+void dht_publickey_delete(dht_publickey* pk) {
+    delete reinterpret_cast<PubkeySp*>(pk);
+}
+
+int dht_publickey_export(const dht_publickey* pk, char* out, size_t* outlen) {
+    const auto& pkey = *reinterpret_cast<const PubkeySp*>(pk);
+    return gnutls_pubkey_export(pkey->pk, GNUTLS_X509_FMT_DER, out, outlen);
+}
+
+dht_infohash dht_publickey_get_id(const dht_publickey* pk) {
+    const auto& pkey = *reinterpret_cast<const PubkeySp*>(pk);
+    return dht_infohash_to_c(pkey->getId());
+}
+
+dht_pkid dht_publickey_get_long_id(const dht_publickey* pk) {
+    const auto& pkey = *reinterpret_cast<const PubkeySp*>(pk);
+    return dht_pkid_to_c(pkey->getLongId());
+}
+
+bool dht_publickey_check_signature(const dht_publickey* pk, const char* data, size_t data_size, const char* signature, size_t signature_size) {
+    const auto& pkey = *reinterpret_cast<const PubkeySp*>(pk);
+    return pkey->checkSignature((const uint8_t*)data, data_size, (const uint8_t*)signature, signature_size);
+}
+
+dht_blob* dht_publickey_encrypt(const dht_publickey* pk, const char* data, size_t data_size) {
+    const auto& pkey = *reinterpret_cast<const PubkeySp*>(pk);
+    auto rdata = new dht::Blob;
+    *rdata = pkey->encrypt((const uint8_t*)data, data_size);
+    return (dht_blob*)rdata;
+}
+
+// dht::crypto::PrivateKey
+dht_privatekey* dht_privatekey_generate(unsigned key_length_bits) {
+    if (key_length_bits == 0)
+        key_length_bits = 4096;
+    return reinterpret_cast<dht_privatekey*>(new PrivkeySp(std::make_shared<dht::crypto::PrivateKey>(dht::crypto::PrivateKey::generate(key_length_bits))));
+}
+
+dht_privatekey* dht_privatekey_import(const uint8_t* dat, size_t dat_size, const char* password) {
+    try {
+        return reinterpret_cast<dht_privatekey*>(new PrivkeySp(std::make_shared<dht::crypto::PrivateKey>(dat, dat_size, password)));
+    } catch (const dht::crypto::CryptoException& e) {
+        return nullptr;
+    }
+}
+
+int dht_privatekey_export(const dht_privatekey* k, char* out, size_t* out_size, const char* password) {
+    if (!out or !out_size or !*out_size)
+        return -1;
+    const auto& key = *reinterpret_cast<const PrivkeySp*>(k);
+    return key->serialize((uint8_t*)out, out_size, password);
+}
+
+dht_publickey* dht_privatekey_get_publickey(const dht_privatekey* k) {
+    const auto& key = *reinterpret_cast<const PrivkeySp*>(k);
+    return reinterpret_cast<dht_publickey*>(new PubkeySp(std::make_shared<dht::crypto::PublicKey>(key->getPublicKey())));
 }
 
 void dht_privatekey_delete(dht_privatekey* pk) {
-    delete reinterpret_cast<dht::crypto::PrivateKey*>(pk);
+    delete reinterpret_cast<PrivkeySp*>(pk);
+}
+
+// dht::crypto::Certificate
+dht_certificate* dht_certificate_import(const uint8_t* dat, size_t dat_size) {
+    try {
+        return reinterpret_cast<dht_certificate*>(new CertSp(std::make_shared<dht::crypto::Certificate>(dat, dat_size)));
+    } catch (const dht::crypto::CryptoException& e) {
+        return nullptr;
+    }
+}
+
+void dht_certificate_delete(dht_certificate* c) {
+    delete reinterpret_cast<CertSp*>(c);
+}
+
+dht_infohash dht_certificate_get_id(const dht_certificate* c) {
+    const auto& cert = *reinterpret_cast<const CertSp*>(c);
+    return dht_infohash_to_c(cert->getId());
+}
+
+dht_pkid dht_certificate_get_long_id(const dht_certificate* c) {
+    const auto& cert = *reinterpret_cast<const CertSp*>(c);
+    return dht_pkid_to_c(cert->getLongId());
+}
+
+dht_publickey* dht_certificate_get_publickey(const dht_certificate* c) {
+    const auto& cert = *reinterpret_cast<const CertSp*>(c);
+    return reinterpret_cast<dht_publickey*>(new PubkeySp(std::make_shared<dht::crypto::PublicKey>(cert->getPublicKey())));
+}
+
+// dht::crypto::Identity
+inline dht::crypto::Identity dht_identity_from_c(const dht_identity* cid) {
+    dht::crypto::Identity id {};
+    if (cid and cid->privatekey)
+        id.first = *reinterpret_cast<const PrivkeySp*>(cid->privatekey);
+    if (cid and cid->certificate)
+        id.second = *reinterpret_cast<const CertSp*>(cid->certificate);
+    return id;
+}
+
+inline dht_identity dht_identity_to_c(const dht::crypto::Identity& id) {
+    dht_identity cid {};
+    cid.privatekey = id.first ? reinterpret_cast<dht_privatekey*>(new PrivkeySp(id.first)) : NULL;
+    cid.certificate = id.second ? reinterpret_cast<dht_certificate*>(new CertSp(id.second)) : NULL;
+    return cid;
+}
+
+OPENDHT_C_PUBLIC dht_identity dht_identity_generate(const char* common_name, const dht_identity* ca) {
+    return dht_identity_to_c(dht::crypto::generateIdentity(common_name, dht_identity_from_c(ca)));
+}
+
+OPENDHT_C_PUBLIC void dht_identity_delete(dht_identity* id) {
+    if (id->certificate) {
+        dht_certificate_delete(id->certificate);
+        id->certificate = NULL;
+    }
+    if (id->privatekey) {
+        dht_privatekey_delete(id->privatekey);
+        id->privatekey = NULL;
+    }
+}
+
+// config
+void dht_runner_config_default(dht_runner_config* config) {
+    bzero(config, sizeof(dht_runner_config));
+    config->threaded = true;
 }
 
 // dht::DhtRunner
@@ -152,6 +260,31 @@ void dht_runner_run(dht_runner* r, in_port_t port) {
     runner->run(port, {}, true);
 }
 
+void dht_runner_run_config(dht_runner* r, in_port_t port, const dht_runner_config* conf) {
+    auto runner = reinterpret_cast<dht::DhtRunner*>(r);
+    dht::DhtRunner::Config config;
+    config.dht_config.node_config.is_bootstrap = conf->dht_config.node_config.is_bootstrap;
+    config.dht_config.node_config.maintain_storage = conf->dht_config.node_config.maintain_storage;
+    config.dht_config.node_config.node_id = *reinterpret_cast<const dht::InfoHash*>(&conf->dht_config.node_config.node_id);
+    config.dht_config.node_config.network = conf->dht_config.node_config.network;
+    config.dht_config.node_config.persist_path = conf->dht_config.node_config.persist_path
+        ? std::string(conf->dht_config.node_config.persist_path) : std::string{};
+
+    if (conf->dht_config.id.privatekey)
+        config.dht_config.id.first = *reinterpret_cast<const PrivkeySp*>(conf->dht_config.id.privatekey);
+
+    if (conf->dht_config.id.certificate)
+        config.dht_config.id.second = *reinterpret_cast<const CertSp*>(conf->dht_config.id.certificate);
+
+    config.threaded = conf->threaded;
+    config.proxy_server = conf->proxy_server ? std::string(conf->proxy_server) : std::string{};
+    config.push_node_id = conf->push_node_id ? std::string(conf->push_node_id) : std::string{};
+    config.push_token = conf->push_token ? std::string(conf->push_token) : std::string{};
+    config.peer_discovery = conf->peer_discovery;
+    config.peer_publish = conf->peer_publish;
+    runner->run(port, config);
+}
+
 void dht_runner_ping(dht_runner* r, struct sockaddr* addr, socklen_t addr_len) {
     auto runner = reinterpret_cast<dht::DhtRunner*>(r);
     runner->bootstrap(dht::SockAddr(addr, addr_len));
@@ -159,7 +292,10 @@ void dht_runner_ping(dht_runner* r, struct sockaddr* addr, socklen_t addr_len) {
 
 void dht_runner_bootstrap(dht_runner* r, const char* host, const char* service) {
     auto runner = reinterpret_cast<dht::DhtRunner*>(r);
-    runner->bootstrap(host, service);
+    if (service)
+        runner->bootstrap(host, service);
+    else
+        runner->bootstrap(host);
 }
 
 void dht_runner_get(dht_runner* r, const dht_infohash* h, dht_get_cb cb, dht_done_cb done_cb, void* cb_user_data) {
@@ -173,11 +309,25 @@ void dht_runner_get(dht_runner* r, const dht_infohash* h, dht_get_cb cb, dht_don
     });
 }
 
-dht_op_token* dht_runner_listen(dht_runner* r, const dht_infohash* h, dht_value_cb cb, void* cb_user_data) {
+struct ScopeGuardCb {
+    ScopeGuardCb(dht_shutdown_cb cb, void* data)
+     : onDestroy(cb), userData(data) {}
+
+    ~ScopeGuardCb() {
+        if (onDestroy)
+            onDestroy((void*)userData);
+    }
+private:
+    const dht_shutdown_cb onDestroy;
+    void const* userData;
+};
+
+dht_op_token* dht_runner_listen(dht_runner* r, const dht_infohash* h, dht_value_cb cb, dht_shutdown_cb done_cb, void* cb_user_data) {
     auto runner = reinterpret_cast<dht::DhtRunner*>(r);
     auto hash = reinterpret_cast<const dht::InfoHash*>(h);
     auto fret = new std::future<size_t>;
-    *fret = runner->listen(*hash, [cb,cb_user_data](const std::vector<std::shared_ptr<dht::Value>>& values, bool expired) {
+    auto guard = done_cb ? std::make_shared<ScopeGuardCb>(done_cb, cb_user_data) : std::shared_ptr<ScopeGuardCb>{};
+    *fret = runner->listen(*hash, [cb,cb_user_data, guard](const std::vector<std::shared_ptr<dht::Value>>& values, bool expired) {
         for (const auto& value : values) {
             if (not cb(reinterpret_cast<const dht_value*>(&value), expired, cb_user_data))
                 return false;
@@ -198,14 +348,41 @@ void dht_op_token_delete(dht_op_token* token) {
     delete reinterpret_cast<std::future<size_t>*>(token);
 }
 
-void dht_runner_put(dht_runner* r, const dht_infohash* h, const dht_value* v, dht_done_cb done_cb, void* cb_user_data) {
+void dht_runner_put(dht_runner* r, const dht_infohash* h, const dht_value* v, dht_done_cb done_cb, void* cb_user_data, bool permanent) {
     auto runner = reinterpret_cast<dht::DhtRunner*>(r);
     auto hash = reinterpret_cast<const dht::InfoHash*>(h);
     auto value = reinterpret_cast<const ValueSp*>(v);
     runner->put(*hash, *value, [done_cb, cb_user_data](bool ok){
         if (done_cb)
             done_cb(ok, cb_user_data);
-    });
+    }, dht::time_point::max(), permanent);
+}
+
+void dht_runner_put_signed(dht_runner* r, const dht_infohash* h, const dht_value* v, dht_done_cb done_cb, void* cb_user_data, bool permanent) {
+    auto runner = reinterpret_cast<dht::DhtRunner*>(r);
+    auto hash = reinterpret_cast<const dht::InfoHash*>(h);
+    auto value = reinterpret_cast<const ValueSp*>(v);
+    runner->putSigned(*hash, *value, [done_cb, cb_user_data](bool ok){
+        if (done_cb)
+            done_cb(ok, cb_user_data);
+    }, permanent);
+}
+
+void dht_runner_put_encrypted(dht_runner* r, const dht_infohash* h, const dht_infohash* to, const dht_value* v, dht_done_cb done_cb, void* cb_user_data, bool permanent) {
+    auto runner = reinterpret_cast<dht::DhtRunner*>(r);
+    auto hash = reinterpret_cast<const dht::InfoHash*>(h);
+    auto toHash = reinterpret_cast<const dht::InfoHash*>(to);
+    auto value = reinterpret_cast<const ValueSp*>(v);
+    runner->putEncrypted(*hash, *toHash, *value, [done_cb, cb_user_data](bool ok){
+        if (done_cb)
+            done_cb(ok, cb_user_data);
+    }, permanent);
+}
+
+void dht_runner_cancel_put(dht_runner* r, const dht_infohash* h, dht_value_id value_id) {
+    auto runner = reinterpret_cast<dht::DhtRunner*>(r);
+    auto hash = reinterpret_cast<const dht::InfoHash*>(h);
+    runner->cancelPut(*hash, value_id);
 }
 
 void dht_runner_shutdown(dht_runner* r, dht_shutdown_cb done_cb, void* cb_user_data) {
@@ -216,6 +393,38 @@ void dht_runner_shutdown(dht_runner* r, dht_shutdown_cb done_cb, void* cb_user_d
     });
 }
 
+dht_infohash dht_runner_get_node_id(const dht_runner* r) {
+    auto runner = reinterpret_cast<const dht::DhtRunner*>(r);
+    dht_infohash ret;
+    *reinterpret_cast<dht::InfoHash*>(&ret) = runner->getNodeId();
+    return ret;
+}
+
+dht_infohash dht_runner_get_id(const dht_runner* r) {
+    auto runner = reinterpret_cast<const dht::DhtRunner*>(r);
+    dht_infohash ret;
+    *reinterpret_cast<dht::InfoHash*>(&ret) = runner->getId();
+    return ret;
+}
+
+struct sockaddr** dht_runner_get_public_address(const dht_runner* r) {
+    auto runner = reinterpret_cast<const dht::DhtRunner*>(r);
+    auto addrs = const_cast<dht::DhtRunner*>(runner)->getPublicAddress();
+    if (addrs.empty())
+        return nullptr;
+    auto ret = (struct sockaddr**)malloc(sizeof(struct sockaddr*) * (addrs.size() + 1));
+    for (size_t i=0; i<addrs.size(); i++) {
+        if (auto len = addrs[i].getLength()) {
+            ret[i] = (struct sockaddr*)malloc(len);
+            memcpy((struct sockaddr*)ret[i], addrs[i].get(), len);
+        } else {
+            ret[i] = nullptr;
+        }
+    }
+    ret[addrs.size()] = nullptr;
+    return ret;
+}
+
 #ifdef __cplusplus
 }
 #endif

c/opendht_c.h

@@ -18,14 +18,6 @@ struct OPENDHT_C_PUBLIC dht_data_view {
 };
 typedef struct dht_data_view dht_data_view;
 
-// dht::Value
-struct OPENDHT_C_PUBLIC dht_value;
-typedef struct dht_value dht_value;
-OPENDHT_C_PUBLIC dht_data_view dht_value_get_data(const dht_value* data);
-OPENDHT_C_PUBLIC dht_value* dht_value_new(const uint8_t* data, size_t size);
-OPENDHT_C_PUBLIC dht_value* dht_value_ref(const dht_value*);
-OPENDHT_C_PUBLIC void dht_value_unref(dht_value*);
-
 // dht::Blob
 struct OPENDHT_C_PUBLIC dht_blob;
 typedef struct dht_blob dht_blob;
@@ -37,7 +29,9 @@ struct OPENDHT_C_PUBLIC dht_infohash { uint8_t d[HASH_LEN]; };
 typedef struct dht_infohash dht_infohash;
 OPENDHT_C_PUBLIC void dht_infohash_zero(dht_infohash* h);
 OPENDHT_C_PUBLIC void dht_infohash_random(dht_infohash* h);
+OPENDHT_C_PUBLIC void dht_infohash_from_hex(dht_infohash* h, const char* dat);
 OPENDHT_C_PUBLIC void dht_infohash_get(dht_infohash* h, const uint8_t* dat, size_t dat_size);
+OPENDHT_C_PUBLIC void dht_infohash_get_from_string(dht_infohash* h, const char* str);
 OPENDHT_C_PUBLIC const char* dht_infohash_print(const dht_infohash* h);
 OPENDHT_C_PUBLIC bool dht_infohash_is_zero(const dht_infohash* h);
 
@@ -49,10 +43,9 @@ OPENDHT_C_PUBLIC const char* dht_pkid_print(const dht_pkid* h);
 // dht::crypto::PublicKey
 struct OPENDHT_C_PUBLIC dht_publickey;
 typedef struct dht_publickey dht_publickey;
-OPENDHT_C_PUBLIC dht_publickey* dht_publickey_new();
+OPENDHT_C_PUBLIC dht_publickey* dht_publickey_import(const uint8_t* dat, size_t dat_size);
 OPENDHT_C_PUBLIC void dht_publickey_delete(dht_publickey* pk);
-OPENDHT_C_PUBLIC int dht_publickey_unpack(dht_publickey* pk, const uint8_t* dat, size_t dat_size);
-OPENDHT_C_PUBLIC int dht_publickey_pack(dht_publickey* pk, char* out, size_t* out_size);
+OPENDHT_C_PUBLIC int dht_publickey_export(const dht_publickey* pk, char* out, size_t* out_size);
 OPENDHT_C_PUBLIC dht_infohash dht_publickey_get_id(const dht_publickey* pk);
 OPENDHT_C_PUBLIC dht_pkid dht_publickey_get_long_id(const dht_publickey* pk);
 OPENDHT_C_PUBLIC bool dht_publickey_check_signature(const dht_publickey* pk, const char* data, size_t data_size, const char* signature, size_t signature_size);
@@ -63,36 +56,100 @@ struct OPENDHT_C_PUBLIC dht_privatekey;
 typedef struct dht_privatekey dht_privatekey;
 OPENDHT_C_PUBLIC dht_privatekey* dht_privatekey_generate(unsigned key_length_bits);
 OPENDHT_C_PUBLIC dht_privatekey* dht_privatekey_import(const uint8_t* dat, size_t dat_size, const char* password);
+OPENDHT_C_PUBLIC int dht_privatekey_export(const dht_privatekey*, char* out, size_t* out_size, const char* password);
 OPENDHT_C_PUBLIC dht_publickey* dht_privatekey_get_publickey(const dht_privatekey*);
 OPENDHT_C_PUBLIC void dht_privatekey_delete(dht_privatekey*);
 
 // dht::crypto::Certificate
 struct OPENDHT_C_PUBLIC dht_certificate;
 typedef struct dht_certificate dht_certificate;
+OPENDHT_C_PUBLIC dht_certificate* dht_certificate_import(const uint8_t* dat, size_t dat_size);
+OPENDHT_C_PUBLIC dht_infohash dht_certificate_get_id(const dht_certificate*);
+OPENDHT_C_PUBLIC dht_pkid dht_certificate_get_long_id(const dht_certificate*);
+OPENDHT_C_PUBLIC dht_publickey* dht_certificate_get_publickey(const dht_certificate*);
+OPENDHT_C_PUBLIC void dht_certificate_delete(dht_certificate*);
+
+struct OPENDHT_PUBLIC dht_identity {
+    dht_privatekey* privatekey;
+    dht_certificate* certificate;
+};
+typedef struct dht_identity dht_identity;
+OPENDHT_C_PUBLIC dht_identity dht_identity_generate(const char* common_name, const dht_identity* ca);
+OPENDHT_C_PUBLIC void dht_identity_delete(dht_identity*);
+
+// dht::Value
+struct OPENDHT_C_PUBLIC dht_value;
+typedef struct dht_value dht_value;
+typedef uint64_t dht_value_id;
+OPENDHT_C_PUBLIC dht_value* dht_value_new(const uint8_t* data, size_t size);
+OPENDHT_C_PUBLIC dht_value* dht_value_ref(const dht_value*);
+OPENDHT_C_PUBLIC void dht_value_unref(dht_value*);
+OPENDHT_C_PUBLIC dht_data_view dht_value_get_data(const dht_value* data);
+OPENDHT_C_PUBLIC dht_value_id dht_value_get_id(const dht_value* data);
+OPENDHT_C_PUBLIC dht_publickey* dht_value_get_owner(const dht_value* data);
+OPENDHT_C_PUBLIC dht_infohash dht_value_get_recipient(const dht_value* data);
+OPENDHT_C_PUBLIC const char* dht_value_get_user_type(const dht_value* data);
 
 // callbacks
 typedef bool (*dht_get_cb)(const dht_value* value, void* user_data);
 typedef bool (*dht_value_cb)(const dht_value* value, bool expired, void* user_data);
-typedef bool (*dht_done_cb)(bool ok, void* user_data);
-typedef bool (*dht_shutdown_cb)(void* user_data);
+typedef void (*dht_done_cb)(bool ok, void* user_data);
+typedef void (*dht_shutdown_cb)(void* user_data);
 
 struct OPENDHT_C_PUBLIC dht_op_token;
 typedef struct dht_op_token dht_op_token;
 OPENDHT_C_PUBLIC void dht_op_token_delete(dht_op_token* token);
 
+// config
+struct OPENDHT_PUBLIC dht_node_config {
+    dht_infohash node_id;
+    uint32_t network;
+    bool is_bootstrap;
+    bool maintain_storage;
+    const char* persist_path;
+};
+typedef struct dht_node_config dht_node_config;
+
+struct OPENDHT_PUBLIC dht_secure_config {
+    dht_node_config node_config;
+    dht_identity id;
+};
+typedef struct dht_secure_config dht_secure_config;
+
+struct OPENDHT_PUBLIC dht_runner_config {
+    dht_secure_config dht_config;
+    bool threaded;
+    const char* proxy_server;
+    const char* push_node_id;
+    const char* push_token;
+    bool peer_discovery;
+    bool peer_publish;
+    dht_certificate* server_ca;
+    dht_identity client_identity;
+};
+typedef struct dht_runner_config dht_runner_config;
+OPENDHT_C_PUBLIC void dht_runner_config_default(dht_runner_config* config);
+
 // dht::DhtRunner
 struct OPENDHT_C_PUBLIC dht_runner;
 typedef struct dht_runner dht_runner;
 OPENDHT_C_PUBLIC dht_runner* dht_runner_new();
 OPENDHT_C_PUBLIC void dht_runner_delete(dht_runner* runner);
 OPENDHT_C_PUBLIC void dht_runner_run(dht_runner* runner, in_port_t port);
+OPENDHT_C_PUBLIC void dht_runner_run_config(dht_runner* runner, in_port_t port, const dht_runner_config* config);
 OPENDHT_C_PUBLIC void dht_runner_ping(dht_runner* runner, struct sockaddr* addr, socklen_t addr_len);
 OPENDHT_C_PUBLIC void dht_runner_bootstrap(dht_runner* runner, const char* host, const char* service);
 OPENDHT_C_PUBLIC void dht_runner_get(dht_runner* runner, const dht_infohash* hash, dht_get_cb cb, dht_done_cb done_cb, void* cb_user_data);
-OPENDHT_C_PUBLIC dht_op_token* dht_runner_listen(dht_runner* runner, const dht_infohash* hash, dht_value_cb cb, void* cb_user_data);
+OPENDHT_C_PUBLIC dht_op_token* dht_runner_listen(dht_runner* runner, const dht_infohash* hash, dht_value_cb cb, dht_shutdown_cb done_cb, void* cb_user_data);
 OPENDHT_C_PUBLIC void dht_runner_cancel_listen(dht_runner* runner, const dht_infohash* hash, dht_op_token* token);
-OPENDHT_C_PUBLIC void dht_runner_put(dht_runner* runner, const dht_infohash* hash, const dht_value* value, dht_done_cb done_cb, void* cb_user_data);
+OPENDHT_C_PUBLIC void dht_runner_put(dht_runner* runner, const dht_infohash* hash, const dht_value* value, dht_done_cb done_cb, void* cb_user_data, bool permanent);
+OPENDHT_C_PUBLIC void dht_runner_put_signed(dht_runner* runner, const dht_infohash* hash, const dht_value* value, dht_done_cb done_cb, void* cb_user_data, bool permanent);
+OPENDHT_C_PUBLIC void dht_runner_put_encrypted(dht_runner* runner, const dht_infohash* hash, const dht_infohash* to, const dht_value* value, dht_done_cb done_cb, void* cb_user_data, bool permanent);
+OPENDHT_C_PUBLIC void dht_runner_cancel_put(dht_runner* runner, const dht_infohash* hash, dht_value_id value_id);
 OPENDHT_C_PUBLIC void dht_runner_shutdown(dht_runner* runner, dht_shutdown_cb done_cb, void* cb_user_data);
+OPENDHT_C_PUBLIC dht_infohash dht_runner_get_node_id(const dht_runner* runner);
+OPENDHT_C_PUBLIC dht_infohash dht_runner_get_id(const dht_runner* runner);
+OPENDHT_C_PUBLIC struct sockaddr** dht_runner_get_public_address(const dht_runner* runner);
 
 #ifdef __cplusplus
 }

configure.ac

@@ -1,7 +1,7 @@
 dnl define macros
-m4_define([opendht_major_version], 1)
-m4_define([opendht_minor_version], 10)
-m4_define([opendht_patch_version], 1)
+m4_define([opendht_major_version], 2)
+m4_define([opendht_minor_version], 0)
+m4_define([opendht_patch_version], 0)
 m4_define([opendht_version],
 		  [opendht_major_version.opendht_minor_version.opendht_patch_version])
 
@@ -35,10 +35,14 @@ AS_IF([test "x$enable_logs" != "xno"], [
 dnl Check for indexation
 AC_ARG_ENABLE([indexation], [AS_HELP_STRING([--disable-indexation], [Disable DHT indexation])])
 AM_CONDITIONAL(ENABLE_INDEXATION, test x$enable_indexation != "xno")
-AS_IF([test "x$enable_indexation" != "xno"], [
-	AC_DEFINE([OPENDHT_INDEXATION], [1], [Define if DHT indexation is enabled])
+AM_COND_IF(ENABLE_INDEXATION, [
+	AC_DEFINE([OPENDHT_INDEXATION], [], [Define if DHT indexation is enabled])
 ])
 
+AC_ARG_ENABLE([peer-discovery], [AS_HELP_STRING([--disable-peer-discovery], [Disable peer-discovery])])
+AM_CONDITIONAL(ENABLE_PEER_DISCOVERY, test x$enable_peer_discovery != "xno")
+AM_COND_IF(ENABLE_PEER_DISCOVERY, [AC_DEFINE([OPENDHT_PEER_DISCOVERY], [], [Define if peer discovery is enabled])])
+
 dnl Check for Doxygen
 AC_ARG_ENABLE([doc], AS_HELP_STRING([--enable-doc], [Enable documentation generation (doxygen)]))
 AS_IF([test "x$enable_doc" = "xyes"], [
@@ -98,7 +102,7 @@ AS_IF([test "x$SYS" = "xandroid"],
 LT_INIT()
 LT_LANG(C++)
 
-AX_CXX_COMPILE_STDCXX(11,[noext],[mandatory])
+AX_CXX_COMPILE_STDCXX(14,[noext],[mandatory])
 
 PKG_PROG_PKG_CONFIG()
 
@@ -135,7 +139,7 @@ AS_IF([test "x$with_jsoncpp" != "xno"],
       [have_jsoncpp=no])
 AS_IF([test "x$have_jsoncpp" = "xyes"], [
     AC_MSG_NOTICE([Using JsonCpp])
-    CPPFLAGS+=" -DOPENDHT_JSONCPP=1"
+    CPPFLAGS+=" -DOPENDHT_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"]))
@@ -154,7 +158,7 @@ AS_IF([test "x$have_openssl" = "xyes"], [
 AC_ARG_WITH([http_parser_fork], AS_HELP_STRING([--with-http-parser-fork], [Build with http_parser fork to support old API]))
 AS_IF([test "x$with_http_parser_fork" = "xyes"],[
     AC_MSG_NOTICE([Using http_parser fork])
-    CPPFLAGS+=" -DOPENDHT_PROXY_HTTP_PARSER_FORK"
+    AC_DEFINE([OPENDHT_PROXY_HTTP_PARSER_FORK], [], [Define if using http parser fork])
 ], [
     AC_MSG_NOTICE([Not using http_parser fork])
 ])
@@ -205,27 +209,24 @@ AM_COND_IF([ENABLE_TOOLS], [
   ])
 ])
 
-AM_COND_IF(ENABLE_PROXY_SERVER, [CPPFLAGS+=" -DOPENDHT_PROXY_SERVER"], [])
-AM_COND_IF(ENABLE_PROXY_CLIENT, [CPPFLAGS+=" -DOPENDHT_PROXY_CLIENT"], [])
+AM_COND_IF(ENABLE_PROXY_SERVER, AC_DEFINE([OPENDHT_PROXY_SERVER], [], [Building with proxy server]))
+AM_COND_IF(ENABLE_PROXY_CLIENT, AC_DEFINE([OPENDHT_PROXY_CLIENT], [], [Building with proxy client]))
 AM_COND_IF(ENABLE_PUSH_NOTIFICATIONS, [CPPFLAGS+=" -DOPENDHT_PUSH_NOTIFICATIONS"], [])
 AM_COND_IF(ENABLE_PROXY_SERVER_IDENTITY, [CPPFLAGS+=" -DOPENDHT_PROXY_SERVER_IDENTITY"], [])
 
-AM_COND_IF([HAVE_DOXYGEN], [
-  AC_CONFIG_FILES([doc/Doxyfile doc/Makefile])
-])
-
 dnl Configure setup.py if we build the python module
-AM_COND_IF([USE_CYTHON], [
-    AC_SUBST(CURRENT_SOURCE_DIR, ".")
-    AC_SUBST(CURRENT_BINARY_DIR, ".")
-    AC_SUBST(PROJECT_SOURCE_DIR, "..")
-    AC_SUBST(PROJECT_BINARY_DIR, "../src/.libs")
-    AC_CONFIG_FILES([python/Makefile python/setup.py])
-])
+AC_SUBST(CURRENT_SOURCE_DIR, ".")
+AC_SUBST(CURRENT_BINARY_DIR, ".")
+AC_SUBST(PROJECT_SOURCE_DIR, "..")
+AC_SUBST(PROJECT_BINARY_DIR, "../src/.libs")
 
 AC_CONFIG_FILES([Makefile
                  src/Makefile
                  tools/Makefile
+                 python/Makefile
+                 python/setup.py
                  tests/Makefile
+                 doc/Makefile
+                 doc/Doxyfile
                  opendht.pc])
 AC_OUTPUT

doc/Makefile.am

@@ -1,7 +1,10 @@
 dist_man1_MANS = dhtnode.1
 
+noinst_HEADERS = \
+	Doxyfile
+
 if HAVE_DOXYGEN
-doxyfile.stamp:
+doxyfile.stamp: Doxyfile
 	$(DOXYGEN) Doxyfile
 	echo stamp > doxyfile.stamp
 

docker/DockerfileBionic

@@ -0,0 +1,13 @@
+FROM docker.pkg.github.com/savoirfairelinux/opendht/opendht-deps-bionic:2.0.0
+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_PROXY_CLIENT=On \
+		-DOPENDHT_PROXY_SERVER=On \
+		-DOPENDHT_C=On \
+		-DOPENDHT_PYTHON=On \
+		-DOPENDHT_LTO=On \
+		&& make -j8 && make install \
+	&& cd ../.. && rm -rf opendht

docker/DockerfileDeps

@@ -2,14 +2,14 @@ FROM ubuntu:16.04
 MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 RUN apt-get update && apt-get install -y \
         build-essential cmake git wget libncurses5-dev libreadline-dev nettle-dev \
-        libgnutls28-dev libuv1-dev cython3 python3-dev libcppunit-dev libjsoncpp-dev \
-        autotools-dev autoconf libasio-dev \
+        libgnutls28-dev libuv1-dev cython3 python3-dev python3-setuptools libcppunit-dev libjsoncpp-dev \
+        autotools-dev autoconf libssl-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 . \
+    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_SHARED_LIBS=On -DFMT_TEST=Off -DFMT_DOC=Off . \
     && make -j8 && make install \
     && cd ../ && rm -rf fmt*
 
@@ -17,25 +17,22 @@ RUN echo "*** Installing libfmt ***" \
 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 && make install \
+    && 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/chriskohlhoff/asio/archive/asio-1-12-2.tar.gz \
-    && tar -xvf asio-1-12-2.tar.gz && cd asio-asio-1-12-2/asio \
-    && ./autogen.sh && ./configure --prefix=/usr --without-boost \
+    && wget https://github.com/aberaud/asio/archive/b2b7a1c166390459e1c169c8ae9ef3234b361e3f.tar.gz \
+    && tar -xvf b2b7a1c166390459e1c169c8ae9ef3234b361e3f.tar.gz && cd asio-b2b7a1c166390459e1c169c8ae9ef3234b361e3f/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/Stiffstream/restinio/archive/v.0.5.1.2.tar.gz \
-    && ls -l && tar -xzf v.0.5.1.2.tar.gz \
-    && cd restinio-v.0.5.1.2/dev \
+    && wget https://github.com/aberaud/restinio/archive/a7a10e419d9089c5b8ee63f5e3098c892f22fae4.tar.gz \
+    && ls -l && tar -xzf a7a10e419d9089c5b8ee63f5e3098c892f22fae4.tar.gz \
+    && cd restinio-a7a10e419d9089c5b8ee63f5e3098c892f22fae4/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 . \

docker/DockerfileDepsBionic

@@ -0,0 +1,28 @@
+FROM ubuntu:18.04
+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 \
+        libgnutls28-dev libuv1-dev cython3 python3-dev python3-setuptools libcppunit-dev libjsoncpp-dev \
+        autotools-dev autoconf libfmt-dev libhttp-parser-dev libmsgpack-dev \
+    && apt-get clean
+
+# libasio-dev (1.10) is too old
+RUN echo "** Building a recent version of asio ***" \
+    && wget https://github.com/aberaud/asio/archive/b2b7a1c166390459e1c169c8ae9ef3234b361e3f.tar.gz \
+    && tar -xvf b2b7a1c166390459e1c169c8ae9ef3234b361e3f.tar.gz && cd asio-b2b7a1c166390459e1c169c8ae9ef3234b361e3f/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/8d5d3e8237e0947adb9ba1ffc8281f4ad7cb2a59.tar.gz \
+    && ls -l && tar -xzf 8d5d3e8237e0947adb9ba1ffc8281f4ad7cb2a59.tar.gz \
+    && cd restinio-8d5d3e8237e0947adb9ba1ffc8281f4ad7cb2a59/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*

docker/DockerfileDepsLlvm

@@ -2,9 +2,9 @@ FROM ubuntu:16.04
 MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 RUN apt-get update \
     && apt-get install -y llvm llvm-dev clang make cmake git wget libncurses5-dev libreadline-dev \
-       nettle-dev libgnutls28-dev libuv1-dev libmsgpack-dev libjsoncpp-dev libasio-dev cython3 python3-dev \
+       nettle-dev libgnutls28-dev libuv1-dev libmsgpack-dev libjsoncpp-dev cython3 python3-dev \
        python3-setuptools libcppunit-dev python3-pip \
-       autotools-dev autoconf libasio-dev \
+       autotools-dev autoconf libssl-dev \
     && apt-get remove -y gcc g++ && apt-get autoremove -y && apt-get clean
 
 ENV CC cc
@@ -13,7 +13,7 @@ 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 . \
+    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_SHARED_LIBS=On -DFMT_TEST=Off -DFMT_DOC=Off . \
     && make -j8 && make install \
     && cd ../ && rm -rf fmt*
 
@@ -21,14 +21,14 @@ RUN echo "*** Installing libfmt ***" \
 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 && make install \
+    && 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/chriskohlhoff/asio/archive/asio-1-12-2.tar.gz \
-    && tar -xvf asio-1-12-2.tar.gz && cd asio-asio-1-12-2/asio \
-    && ./autogen.sh && ./configure --prefix=/usr --without-boost \
+    && wget https://github.com/aberaud/asio/archive/b2b7a1c166390459e1c169c8ae9ef3234b361e3f.tar.gz \
+    && tar -xvf b2b7a1c166390459e1c169c8ae9ef3234b361e3f.tar.gz && cd asio-b2b7a1c166390459e1c169c8ae9ef3234b361e3f/asio \
+    && ./autogen.sh && ./configure --prefix=/usr --without-boost --disable-examples --disable-tests  \
     && make install \
     && cd ../../ && rm -rf asio*
 
@@ -37,9 +37,9 @@ RUN apt-get update && apt-get install -y python3-pip && pip3 install --upgrade c
 
 RUN echo "*** Downloading RESTinio ***" \
     && mkdir restinio && cd restinio \
-    && wget https://github.com/Stiffstream/restinio/archive/v.0.5.1.2.tar.gz \
-    && ls -l && tar -xzf v.0.5.1.2.tar.gz \
-    && cd restinio-v.0.5.1.2/dev \
+    && wget https://github.com/aberaud/restinio/archive/a7a10e419d9089c5b8ee63f5e3098c892f22fae4.tar.gz \
+    && ls -l && tar -xzf a7a10e419d9089c5b8ee63f5e3098c892f22fae4.tar.gz \
+    && cd restinio-a7a10e419d9089c5b8ee63f5e3098c892f22fae4/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 . \

include/opendht.h

@@ -19,10 +19,4 @@
 #pragma once
 
 #include "opendht/dhtrunner.h"
-#ifdef OPENDHT_PROXY_SERVER
-#include "opendht/dht_proxy_server.h"
-#endif
 #include "opendht/default_types.h"
-#ifdef OPENDHT_INDEXATION
-#include "opendht/indexation/pht.h"
-#endif

include/opendht/callbacks.h

@@ -44,6 +44,13 @@ enum class NodeStatus {
     Connected     // 1+ good nodes
 };
 
+inline constexpr const char*
+statusToStr(NodeStatus status) {
+    return status == NodeStatus::Connected  ? "connected"  : (
+           status == NodeStatus::Connecting ? "connecting" :
+                                              "disconnected");
+}
+
 struct OPENDHT_PUBLIC NodeStats {
     unsigned good_nodes {0},
              dubious_nodes {0},
@@ -69,8 +76,9 @@ struct OPENDHT_PUBLIC NodeStats {
 struct OPENDHT_PUBLIC NodeInfo {
     InfoHash id;
     InfoHash node_id;
-    NodeStats ipv4;
-    NodeStats ipv6;
+    NodeStats ipv4 {};
+    NodeStats ipv6 {};
+    size_t ongoing_ops {0};
 
 #ifdef OPENDHT_JSONCPP
     /**
@@ -106,8 +114,15 @@ 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. */
+    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};
 };
 
+#ifndef OPENDHT_LIGHT
 /**
  * SecureDht configuration.
  */
@@ -116,6 +131,7 @@ struct OPENDHT_PUBLIC SecureDhtConfig
     Config node_config {};
     crypto::Identity id {};
 };
+#endif
 
 static constexpr size_t DEFAULT_STORAGE_LIMIT {1024 * 1024 * 64};
 

include/opendht/crypto.h

@@ -43,16 +43,22 @@ namespace dht {
 namespace crypto {
 
 class OPENDHT_PUBLIC CryptoException : public std::runtime_error {
-    public:
-        CryptoException(const std::string& str) : std::runtime_error(str) {};
+public:
+    explicit CryptoException(const std::string& str) : std::runtime_error(str) {};
+    explicit CryptoException(const char* str) : std::runtime_error(str) {};
+    CryptoException(const CryptoException& e) noexcept = default;
+    CryptoException& operator=(const CryptoException&) noexcept = default;
 };
 
 /**
  * Exception thrown when a decryption error happened.
  */
 class OPENDHT_PUBLIC DecryptError : public CryptoException {
-    public:
-        DecryptError(const std::string& str = "") : CryptoException(str) {};
+public:
+    explicit DecryptError(const std::string& str) : CryptoException(str) {};
+    explicit DecryptError(const char* str) : CryptoException(str) {};
+    DecryptError(const DecryptError& e) noexcept = default;
+    DecryptError& operator=(const DecryptError&) noexcept = default;
 };
 
 struct PrivateKey;
@@ -72,7 +78,8 @@ struct OPENDHT_PUBLIC PublicKey
      * Takes ownership of an existing gnutls_pubkey.
      */
     PublicKey(gnutls_pubkey_t k) : pk(k) {}
-    PublicKey(const Blob& pk);
+    PublicKey(const uint8_t* dat, size_t dat_size);
+    PublicKey(const Blob& pk) : PublicKey(pk.data(), pk.size()) {}
     PublicKey(PublicKey&& o) noexcept : pk(o.pk) { o.pk = nullptr; };
 
     ~PublicKey();
@@ -153,6 +160,7 @@ struct OPENDHT_PUBLIC PrivateKey
     explicit operator bool() const { return key; }
 
     PublicKey getPublicKey() const;
+    int serialize(uint8_t* out, size_t* out_len, const std::string& password = {}) const;
     Blob serialize(const std::string& password = {}) const;
 
     /**

include/opendht/default_types.h

@@ -58,6 +58,7 @@ public:
     MSGPACK_DEFINE(service, data)
 };
 
+#ifndef OPENDHT_LIGHT
 template <typename T>
 class OPENDHT_PUBLIC SignedValue : public Value::Serializable<T>
 {
@@ -102,7 +103,6 @@ public:
 
 
 
-
 class OPENDHT_PUBLIC ImMessage : public SignedValue<ImMessage>
 {
 private:
@@ -177,16 +177,8 @@ public:
     {
         pk.pack_array(2);
         pk.pack(id);
-#if 1
         pk.pack_bin(ice_data.size());
         pk.pack_bin_body((const char*)ice_data.data(), ice_data.size());
-#else
-        // hack for backward compatibility with old opendht compiled with msgpack 1.0
-        // remove when enough people have moved to new versions
-        pk.pack_array(ice_data.size());
-        for (uint8_t b : ice_data)
-            pk.pack(b);
-#endif
     }
 
     virtual void msgpack_unpack(msgpack::object o)
@@ -200,6 +192,7 @@ public:
     Value::Id id {0};
     Blob ice_data;
 };
+#endif
 
 /* "Peer" announcement
  */
@@ -261,8 +254,11 @@ private:
     SockAddr addr;
 };
 
-
+#ifndef OPENDHT_LIGHT
 OPENDHT_PUBLIC extern const std::array<std::reference_wrapper<const ValueType>, 5> DEFAULT_TYPES;
+#else
+OPENDHT_PUBLIC extern const std::array<std::reference_wrapper<const ValueType>, 1> DEFAULT_TYPES;
+#endif
 
 OPENDHT_PUBLIC extern const std::array<std::reference_wrapper<const ValueType>, 1> DEFAULT_INSECURE_TYPES;
 

include/opendht/dht_proxy_client.h

@@ -53,9 +53,9 @@ public:
     DhtProxyClient();
 
     explicit DhtProxyClient(
-        std::shared_ptr<dht::crypto::Certificate> serverCA, dht::crypto::Identity clientIdentity,
+        std::shared_ptr<crypto::Certificate> serverCA, crypto::Identity clientIdentity,
         std::function<void()> loopSignal, const std::string& serverHost,
-        const std::string& pushClientId = "", std::shared_ptr<dht::Logger> logger = {});
+        const std::string& pushClientId = "", std::shared_ptr<Logger> logger = {});
 
     void setHeaderFields(http::Request& request);
 
@@ -285,9 +285,7 @@ private:
      */
     struct InfoState;
     void getProxyInfos();
-    void handleProxyStatus(const asio::error_code &ec, std::shared_ptr<InfoState> infoState);
-    void queryProxyInfo(std::shared_ptr<InfoState> infoState, const sa_family_t family,
-                        std::vector<asio::ip::tcp::endpoint>&& endpoints);
+    void queryProxyInfo(std::shared_ptr<InfoState> infoState, sa_family_t family, std::shared_ptr<http::Resolver> resolver);
     void onProxyInfos(const Json::Value& val, const sa_family_t family);
     SockAddr parsePublicAddress(const Json::Value& val);
 
@@ -310,9 +308,8 @@ private:
     void handleResubscribe(const asio::error_code& ec, const InfoHash& key,
                            const size_t token, std::shared_ptr<OperationState> opstate);
 
-    void doPut(const InfoHash&, Sp<Value>, DoneCallback, time_point created, bool permanent);
-    void handleRefreshPut(const asio::error_code& ec, const InfoHash& key, const Value::Id id,
-                          std::shared_ptr<std::atomic_bool> ok);
+    void doPut(const InfoHash&, Sp<Value>, DoneCallbackSimple, time_point created, bool permanent);
+    void handleRefreshPut(const asio::error_code& ec, InfoHash key, Value::Id id);
 
     /**
      * Initialize statusIpvX_
@@ -322,28 +319,15 @@ private:
      * cancel all Listeners
      */
     void cancelAllListeners();
-    /**
-     * cancel all Operations
-     */
-    void cancelAllOperations();
 
+    std::atomic_bool isDestroying_ {false};
+
+    std::string proxyUrl_;
     dht::crypto::Identity clientIdentity_;
     std::shared_ptr<dht::crypto::Certificate> serverCertificate_;
-    std::pair<std::string, std::string> serverHostService_;
+    //std::pair<std::string, std::string> serverHostService_;
     std::string pushClientId_;
 
-    /*
-     * ASIO I/O Context for sockets in httpClient_
-     * Note: Each context is used in one thread only
-     */
-    asio::io_context httpContext_;
-    std::shared_ptr<http::Resolver> resolver_;
-    std::map<unsigned int /*id*/, std::shared_ptr<http::Request>> requests_;
-    /*
-     * Thread for executing the http io_context.run() blocking call
-     */
-    std::thread httpClientThread_;
-
     mutable std::mutex lockCurrentProxyInfos_;
     NodeStatus statusIpv4_ {NodeStatus::Disconnected};
     NodeStatus statusIpv6_ {NodeStatus::Disconnected};
@@ -357,24 +341,36 @@ private:
     // registred types
     TypeStore types;
 
+    /*
+     * ASIO I/O Context for sockets in httpClient_
+     * Note: Each context is used in one thread only
+     */
+    asio::io_context httpContext_;
+    std::shared_ptr<http::Resolver> resolver_;
+
+    mutable std::mutex requestLock_;
+    std::map<unsigned, std::shared_ptr<http::Request>> requests_;
+    /*
+     * Thread for executing the http io_context.run() blocking call
+     */
+    std::thread httpClientThread_;
+
     /**
      * Store listen requests.
      */
     struct ProxySearch;
 
+    mutable std::mutex searchLock_;
     size_t listenerToken_ {0};
     std::map<InfoHash, ProxySearch> searches_;
-    mutable std::mutex searchLock_;
 
     /**
      * Callbacks should be executed in the main thread.
      */
-    std::vector<std::function<void()>> callbacks_;
     std::mutex lockCallbacks_;
+    std::vector<std::function<void()>> callbacks_;
 
     Sp<InfoState> infoState_;
-    Sp<asio::steady_timer> statusTimer_;
-    mutable std::mutex statusLock_;
 
     /**
      * Retrieve if we can connect to the proxy (update statusIpvX_)
@@ -407,9 +403,11 @@ private:
     void getPushRequest(Json::Value&) const;
 #endif // OPENDHT_PUSH_NOTIFICATIONS
 
-    std::atomic_bool isDestroying_ {false};
-
+    Json::StreamWriterBuilder jsonBuilder_;
+    std::unique_ptr<Json::CharReader> jsonReader_;
     std::shared_ptr<dht::Logger> logger_;
+
+    std::shared_ptr<http::Request> buildRequest(const std::string& target = {});
 };
 
 }

include/opendht/dht_proxy_server.h

@@ -31,10 +31,7 @@
 
 #include <restinio/all.hpp>
 #include <restinio/tls.hpp>
-
-#ifdef OPENDHT_JSONCPP
 #include <json/json.h>
-#endif
 
 #include <memory>
 #include <mutex>
@@ -54,8 +51,6 @@ class DhtRunner;
 
 using RestRouter = restinio::router::express_router_t<>;
 using RequestStatus = restinio::request_handling_status_t;
-using ResponseByParts = restinio::chunked_output_t;
-using ResponseByPartsBuilder = restinio::response_builder_t<ResponseByParts>;
 
 /**
  * Describes the REST API
@@ -87,15 +82,15 @@ public:
 
     struct ServerStats {
         /** Current number of listen operations */
-        size_t listenCount;
+        size_t listenCount {0};
         /** Current number of permanent put operations */
-        size_t putCount;
+        size_t putCount {0};
         /** Current number of push tokens with at least one listen operation */
-        size_t pushListenersCount;
+        size_t pushListenersCount {0};
         /** Average requests per second */
-        double requestRate;
+        double requestRate {0};
         /** Node Info **/
-        NodeInfo nodeInfo;
+        NodeInfo nodeInfo {};
 
         std::string toString() const {
             std::ostringstream ss;
@@ -113,7 +108,6 @@ public:
             return ss.str();
         }
 
-#ifdef OPENDHT_JSONCPP
         /**
          * Build a json object from a NodeStats
          */
@@ -126,7 +120,6 @@ public:
             result["nodeInfo"] = nodeInfo.toJson();
             return result;
         }
-#endif
     };
 
     ServerStats stats() const { return stats_; }
@@ -149,6 +142,8 @@ private:
 
     std::unique_ptr<RestRouter> createRestRouter();
 
+    void onConnectionClosed(restinio::connection_id_t);
+
     /**
      * Return the PublicKey id, the node id and node stats
      * Method: GET "/"
@@ -317,6 +312,7 @@ private:
 
     std::shared_ptr<DhtRunner> dht_;
     Json::StreamWriterBuilder jsonBuilder_;
+    Json::CharReaderBuilder jsonReaderBuilder_;
 
     // http server
     std::thread serverThread_;
@@ -325,6 +321,8 @@ private:
 
     // http client
     std::pair<std::string, std::string> pushHostPort_;
+    
+    mutable std::mutex requestLock_;
     std::map<unsigned int /*id*/, std::shared_ptr<http::Request>> requests_;
 
     std::shared_ptr<dht::Logger> logger_;
@@ -335,10 +333,9 @@ private:
     std::unique_ptr<asio::steady_timer> printStatsTimer_;
 
     // Thread-safe access to listeners map.
-    std::shared_ptr<std::mutex> lockListener_;
+    std::mutex lockListener_;
     // Shared with connection listener.
-    std::shared_ptr<std::map<restinio::connection_id_t,
-                             http::ListenerSession>> listeners_;
+    std::map<restinio::connection_id_t, http::ListenerSession> listeners_;
     // Connection Listener observing conn state changes.
     std::shared_ptr<ConnectionListener> connListener_;
 

include/opendht/dhtrunner.h

@@ -230,29 +230,30 @@ public:
     }
     void put(const std::string& key, Value&& value, DoneCallbackSimple cb={}, time_point created=time_point::max(), bool permanent = false);
 
-    void cancelPut(const InfoHash& h, const Value::Id& id);
+    void cancelPut(const InfoHash& h, Value::Id id);
+    void cancelPut(const InfoHash& h, const std::shared_ptr<Value>& value);
 
-    void putSigned(InfoHash hash, std::shared_ptr<Value> value, DoneCallback cb={});
-    void putSigned(InfoHash hash, std::shared_ptr<Value> value, DoneCallbackSimple cb) {
-        putSigned(hash, value, bindDoneCb(cb));
+    void putSigned(InfoHash hash, std::shared_ptr<Value> value, DoneCallback cb={}, bool permanent = false);
+    void putSigned(InfoHash hash, std::shared_ptr<Value> value, DoneCallbackSimple cb, bool permanent = false) {
+        putSigned(hash, value, bindDoneCb(cb), permanent);
     }
 
-    void putSigned(InfoHash hash, Value&& value, DoneCallback cb={});
-    void putSigned(InfoHash hash, Value&& value, DoneCallbackSimple cb) {
-        putSigned(hash, std::forward<Value>(value), bindDoneCb(cb));
+    void putSigned(InfoHash hash, Value&& value, DoneCallback cb={}, bool permanent = false);
+    void putSigned(InfoHash hash, Value&& value, DoneCallbackSimple cb, bool permanent = false) {
+        putSigned(hash, std::forward<Value>(value), bindDoneCb(cb), permanent);
     }
-    void putSigned(const std::string& key, Value&& value, DoneCallbackSimple cb={});
+    void putSigned(const std::string& key, Value&& value, DoneCallbackSimple cb={}, bool permanent = false);
 
-    void putEncrypted(InfoHash hash, InfoHash to, std::shared_ptr<Value> value, DoneCallback cb={});
-    void putEncrypted(InfoHash hash, InfoHash to, std::shared_ptr<Value> value, DoneCallbackSimple cb) {
-        putEncrypted(hash, to, value, bindDoneCb(cb));
+    void putEncrypted(InfoHash hash, InfoHash to, std::shared_ptr<Value> value, DoneCallback cb={}, bool permanent = false);
+    void putEncrypted(InfoHash hash, InfoHash to, std::shared_ptr<Value> value, DoneCallbackSimple cb, bool permanent = false) {
+        putEncrypted(hash, to, value, bindDoneCb(cb), permanent);
     }
 
-    void putEncrypted(InfoHash hash, InfoHash to, Value&& value, DoneCallback cb={});
-    void putEncrypted(InfoHash hash, InfoHash to, Value&& value, DoneCallbackSimple cb) {
-        putEncrypted(hash, to, std::forward<Value>(value), bindDoneCb(cb));
+    void putEncrypted(InfoHash hash, InfoHash to, Value&& value, DoneCallback cb={}, bool permanent = false);
+    void putEncrypted(InfoHash hash, InfoHash to, Value&& value, DoneCallbackSimple cb, bool permanent = false) {
+        putEncrypted(hash, to, std::forward<Value>(value), bindDoneCb(cb), permanent);
     }
-    void putEncrypted(const std::string& key, InfoHash to, Value&& value, DoneCallback cb={});
+    void putEncrypted(const std::string& key, InfoHash to, Value&& value, DoneCallback cb={}, bool permanent = false);
 
     /**
      * Insert known nodes to the routing table, without necessarly ping them.
@@ -316,9 +317,7 @@ public:
      * Returns the currently bound port, in host byte order.
      * @param f: address family of the bound port to retreive.
      */
-    in_port_t getBoundPort(sa_family_t f = AF_INET) const {
-        return getBound(f).getPort();
-    }
+    in_port_t getBoundPort(sa_family_t f = AF_INET) const;
 
     std::pair<size_t, size_t> getStoreSize() const;
 
@@ -341,7 +340,7 @@ public:
     void importValues(const std::vector<ValuesExport>& values);
 
     bool isRunning() const {
-        return running;
+        return running != State::Idle;
     }
 
     NodeStats getNodesStats(sa_family_t af) const;
@@ -359,7 +358,7 @@ public:
 
     // securedht methods
 
-    void findCertificate(InfoHash hash, std::function<void(const std::shared_ptr<crypto::Certificate>)>);
+    void findCertificate(InfoHash hash, std::function<void(const std::shared_ptr<crypto::Certificate>&)>);
     void registerCertificate(std::shared_ptr<crypto::Certificate> cert);
     void setLocalCertificateStore(CertificateStoreQuery&& query_method);
 
@@ -412,7 +411,7 @@ public:
     /**
      * Gracefuly disconnect from network.
      */
-    void shutdown(ShutdownCallback cb);
+    void shutdown(ShutdownCallback cb = {});
 
     /**
      * Quit and wait for all threads to terminate.
@@ -450,6 +449,12 @@ public:
 private:
     static constexpr std::chrono::seconds BOOTSTRAP_PERIOD {10};
 
+    enum class State {
+        Idle,
+        Running,
+        Stopping
+    };
+
     /**
      * Will try to resolve the list of hostnames `bootstrap_nodes` on seperate
      * thread and then queue ping requests. This list should contain reliable
@@ -464,6 +469,11 @@ private:
         return std::max(status4, status6);
     }
 
+    bool checkShutdown();
+    void opEnded();
+    DoneCallback bindOpDoneCallback(DoneCallback&& cb);
+    DoneCallbackSimple bindOpDoneCallback(DoneCallbackSimple&& cb);
+
     /** Local DHT instance */
     std::unique_ptr<SecureDht> dht_;
 
@@ -511,7 +521,9 @@ private:
     std::queue<std::function<void(SecureDht&)>> pending_ops {};
     std::mutex storage_mtx {};
 
-    std::atomic_bool running {false};
+    std::atomic<State> running {State::Idle};
+    std::atomic_size_t ongoing_ops {0};
+    std::vector<ShutdownCallback> shutdownCallbacks_;
 
     NodeStatus status4 {NodeStatus::Disconnected},
                status6 {NodeStatus::Disconnected};

include/opendht/http.h

@@ -61,7 +61,7 @@ struct Certificate;
 namespace http {
 
 using HandlerCb = std::function<void(const asio::error_code& ec)>;
-using BytesHandlerCb = std::function<void(const asio::error_code& ec, const size_t bytes)>;
+using BytesHandlerCb = std::function<void(const asio::error_code& ec, size_t bytes)>;
 using ConnectHandlerCb = std::function<void(const asio::error_code& ec,
                                             const asio::ip::tcp::endpoint& endpoint)>;
 
@@ -82,7 +82,7 @@ public:
     std::string fragment;
 };
 
-class OPENDHT_PUBLIC Connection
+class OPENDHT_PUBLIC Connection : public std::enable_shared_from_this<Connection>
 {
 public:
     Connection(asio::io_context& ctx, const bool ssl = true, std::shared_ptr<dht::Logger> l = {});
@@ -90,30 +90,40 @@ public:
                const dht::crypto::Identity& identity, std::shared_ptr<dht::Logger> l = {});
     ~Connection();
 
-    unsigned int id();
-    bool is_open();
-    bool is_ssl();
+    inline unsigned int id() const { return  id_; };
+    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);
 
     asio::streambuf& input();
-    asio::streambuf& data();
+    std::istream& data() { return istream_; }
 
-    std::string read_bytes(const size_t bytes);
+    std::string read_bytes(size_t bytes = 0);
     std::string read_until(const char delim);
 
     void async_connect(std::vector<asio::ip::tcp::endpoint>&& endpoints, ConnectHandlerCb);
     void async_handshake(HandlerCb cb);
     void async_write(BytesHandlerCb cb);
     void async_read_until(const char* delim, BytesHandlerCb cb);
-    void async_read(const size_t bytes, BytesHandlerCb cb);
+    void async_read_until(char delim, BytesHandlerCb cb);
+    void async_read(size_t bytes, BytesHandlerCb cb);
+    void async_read_some(size_t bytes, BytesHandlerCb cb);
 
     void timeout(const std::chrono::seconds timeout, HandlerCb cb = {});
     void close();
 
 private:
+
+    template<typename T>
+    T wrapCallabck(T cb) const {
+        return [t=shared_from_this(),cb=std::move(cb)](auto ...params) {
+            return cb(params...);
+        };
+    }
+
     unsigned int id_;
-    static unsigned int ids_;
+    static std::atomic_uint ids_;
 
     asio::io_context& ctx_;
     std::unique_ptr<socket_t> socket_;
@@ -124,6 +134,7 @@ private:
 
     asio::streambuf write_buf_;
     asio::streambuf read_buf_;
+    std::istream istream_;
 
     std::unique_ptr<asio::steady_timer> timeout_timer_;
     std::shared_ptr<dht::Logger> logger_;
@@ -147,7 +158,7 @@ class OPENDHT_PUBLIC Resolver
 {
 public:
     using ResolverCb = std::function<void(const asio::error_code& ec,
-                                          std::vector<asio::ip::tcp::endpoint> endpoints)>;
+                                          const std::vector<asio::ip::tcp::endpoint>& endpoints)>;
 
     Resolver(asio::io_context& ctx, const std::string& url, std::shared_ptr<dht::Logger> logger = {});
     Resolver(asio::io_context& ctx, const std::string& host, const std::string& service,
@@ -156,14 +167,20 @@ public:
     // use already resolved endpoints with classes using this resolver
     Resolver(asio::io_context& ctx, std::vector<asio::ip::tcp::endpoint> endpoints,
              const bool ssl = false, std::shared_ptr<dht::Logger> logger = {});
+    Resolver(asio::io_context& ctx, const std::string& url, std::vector<asio::ip::tcp::endpoint> endpoints,
+            std::shared_ptr<dht::Logger> logger = {});
 
     ~Resolver();
 
     inline const Url& get_url() const {
         return url_;
-    };
+    }
 
-    void add_callback(ResolverCb cb);
+    void add_callback(ResolverCb cb, sa_family_t family = AF_UNSPEC);
+
+    std::shared_ptr<Logger> getLogger() const {
+        return logger_;
+    }
 
 private:
     void resolve(const std::string& host, const std::string& service);
@@ -184,12 +201,13 @@ private:
 
 struct Response
 {
-    unsigned int status_code;
+    unsigned int status_code {0};
     std::map<std::string, std::string> headers;
     std::string body;
+    bool aborted {false};
 };
 
-class OPENDHT_PUBLIC Request
+class OPENDHT_PUBLIC Request : public std::enable_shared_from_this<Request>
 {
 public:
     enum class State {
@@ -203,6 +221,7 @@ public:
     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 int status_code)>;
+    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,
@@ -210,9 +229,11 @@ public:
     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 = {});
+    Request(asio::io_context& ctx, const std::string& url, OnDoneCb onDone, std::shared_ptr<dht::Logger> logger = {});
 
     // user defined resolver
-    Request(asio::io_context& ctx, std::shared_ptr<Resolver> resolver, std::shared_ptr<dht::Logger> logger = {});
+    Request(asio::io_context& ctx, std::shared_ptr<Resolver> resolver, sa_family_t family = AF_UNSPEC);
+    Request(asio::io_context& ctx, std::shared_ptr<Resolver> resolver, const std::string& target, sa_family_t family = AF_UNSPEC);
 
     // user defined resolved endpoints
     Request(asio::io_context& ctx, std::vector<asio::ip::tcp::endpoint>&& endpoints,
@@ -220,7 +241,7 @@ public:
 
     ~Request();
 
-    unsigned int id() const;
+    inline unsigned int id() const { return  id_; };
     void set_connection(std::shared_ptr<Connection> connection);
     std::shared_ptr<Connection> get_connection() const;
     inline const Url& get_url() const {
@@ -248,6 +269,7 @@ public:
     void add_on_status_callback(OnStatusCb cb);
     void add_on_body_callback(OnDataCb cb);
     void add_on_state_change_callback(OnStateChangeCb cb);
+    void add_on_done_callback(OnDoneCb cb);
 
     void send();
 
@@ -260,19 +282,14 @@ private:
     using OnCompleteCb = std::function<void()>;
 
     struct Callbacks {
-        Callbacks(){}
-
         OnStatusCb on_status;
         OnDataCb on_header_field;
         OnDataCb on_header_value;
         OnDataCb on_body;
-        OnCompleteCb on_headers_complete;
-        OnCompleteCb on_message_complete;
-
         OnStateChangeCb on_state_change;
     };
 
-    void notify_state_change(const State state);
+    void notify_state_change(State state);
 
     void build();
 
@@ -289,25 +306,20 @@ private:
     void post();
 
     void handle_request(const asio::error_code& ec);
+    void handle_response(const asio::error_code& ec, size_t bytes);
 
-    void handle_response_header(const asio::error_code& ec);
+    void onHeadersComplete();
+    void onBody(const char* at, size_t length);
+    void onComplete();
 
-    void handle_response_body(const asio::error_code& ec, const size_t bytes);
-
-    /**
-     * Parse the request with http_parser.
-     * Return how many bytes were parsed.
-     * Note: we pass requerst.size()==0 to signal that EOF has been received.
-     */
-    size_t parse_request(const std::string& request);
+    std::shared_ptr<dht::Logger> logger_;
 
     restinio::http_request_header_t header_;
     std::map<restinio::http_field_t, std::string> headers_;
-    restinio::http_connection_header_t connection_type_;
+    restinio::http_connection_header_t connection_type_ {restinio::http_connection_header_t::close};
     std::string body_;
 
-    std::mutex cbs_mutex_;
-    std::unique_ptr<Callbacks> cbs_;
+    Callbacks cbs_;
     State state_;
 
     dht::crypto::Identity client_identity_;
@@ -316,19 +328,17 @@ private:
     std::string host_;
 
     unsigned int id_;
-    static unsigned int ids_;
+    static std::atomic_uint ids_;
     asio::io_context& ctx_;
+    sa_family_t family_ = AF_UNSPEC;
     std::shared_ptr<Connection> conn_;
     std::shared_ptr<Resolver> resolver_;
 
     Response response_ {};
     std::string request_;
-    std::atomic<bool> message_complete_ {false};
     std::atomic<bool> finishing_ {false};
     std::unique_ptr<http_parser> parser_;
     std::unique_ptr<http_parser_settings> parser_s_;
-
-    std::shared_ptr<dht::Logger> logger_;
 };
 
 } // namespace http

include/opendht/infohash.h

@@ -50,7 +50,7 @@ namespace dht {
 using byte = uint8_t;
 
 namespace crypto {
-    OPENDHT_PUBLIC void hash(const uint8_t* data, size_t data_length, uint8_t* hash, size_t hash_length);
+OPENDHT_PUBLIC void hash(const uint8_t* data, size_t data_length, uint8_t* hash, size_t hash_length);
 }
 
 /**

include/opendht/log.h

@@ -71,13 +71,13 @@ OPENDHT_PUBLIC void
 printLog(std::ostream &s, char const *m, va_list args);
 
 OPENDHT_PUBLIC
-std::unique_ptr<Logger> getStdLogger();
+std::shared_ptr<Logger> getStdLogger();
 
 OPENDHT_PUBLIC
-std::unique_ptr<Logger> getFileLogger(const std::string &path);
+std::shared_ptr<Logger> getFileLogger(const std::string &path);
 
 OPENDHT_PUBLIC
-std::unique_ptr<Logger> getSyslogLogger(const char* name);
+std::shared_ptr<Logger> getSyslogLogger(const char* name);
 
 OPENDHT_PUBLIC void
 enableLogging(dht::DhtRunner &dht);

include/opendht/network_engine.h

@@ -48,6 +48,12 @@ struct TransId;
 #define MSG_CONFIRM 0
 #endif
 
+struct NetworkConfig {
+    NetId network {0};
+    ssize_t max_req_per_sec {0};
+    ssize_t max_peer_req_per_sec {0};
+};
+
 class DhtProtocolException : public DhtException {
 public:
     // sent to another peer (http-like).
@@ -207,7 +213,12 @@ public:
     using RequestExpiredCb = std::function<void(const Request&, bool)>;
 
     NetworkEngine(Logger& log, Scheduler& scheduler, std::unique_ptr<DatagramSocket>&& sock);
-    NetworkEngine(InfoHash& myid, NetId net, std::unique_ptr<DatagramSocket>&& sock, Logger& log, Scheduler& scheduler,
+    NetworkEngine(
+            InfoHash& myid,
+            NetworkConfig config,
+            std::unique_ptr<DatagramSocket>&& sock,
+            Logger& log,
+            Scheduler& scheduler,
             decltype(NetworkEngine::onError)&& onError,
             decltype(NetworkEngine::onNewNode)&& onNewNode,
             decltype(NetworkEngine::onReportedAddr)&& onReportedAddr,
@@ -425,7 +436,6 @@ private:
     /***************
      *  Constants  *
      ***************/
-    static constexpr size_t MAX_REQUESTS_PER_SEC {1600};
     /* the length of a node info buffer in ipv4 format */
     static const constexpr size_t NODE4_INFO_BUF_LEN {HASH_LEN + sizeof(in_addr) + sizeof(in_port_t)};
     /* the length of a node info buffer in ipv6 format */
@@ -513,18 +523,18 @@ private:
 
     /* DHT info */
     const InfoHash& myid;
-    const NetId network {0};
+    const NetworkConfig config {};
     const std::unique_ptr<DatagramSocket> dht_socket;
     const Logger& DHT_LOG;
 
     NodeCache cache {};
 
     // global limiting should be triggered by at least 8 different IPs
-    using IpLimiter = RateLimiter<MAX_REQUESTS_PER_SEC/8>;
+    using IpLimiter = RateLimiter;
     using IpLimiterMap = std::map<SockAddr, IpLimiter, SockAddr::ipCmp>;
-    IpLimiterMap address_rate_limiter {};
-    RateLimiter<MAX_REQUESTS_PER_SEC> rate_limiter {};
-    size_t limiter_maintenance {0};
+    IpLimiterMap address_rate_limiter;
+    RateLimiter rate_limiter;
+    ssize_t limiter_maintenance {0};
 
     // requests handling
     std::map<Tid, Sp<Request>> requests {};

include/opendht/network_utils.h

@@ -35,7 +35,7 @@
 #include <functional>
 #include <thread>
 #include <atomic>
-#include <iostream>
+#include <mutex>
 
 namespace dht {
 namespace net {
@@ -63,24 +63,34 @@ public:
     virtual int sendTo(const SockAddr& dest, const uint8_t* data, size_t size, bool replied) = 0;
 
     inline void setOnReceive(OnReceive&& cb) {
+        std::lock_guard<std::mutex> lk(lock);
         rx_callback = std::move(cb);
     }
 
-    virtual const SockAddr& getBound(sa_family_t family = AF_UNSPEC) const = 0;
     virtual bool hasIPv4() const = 0;
     virtual bool hasIPv6() const = 0;
 
-    in_port_t getPort(sa_family_t family = AF_UNSPEC) const {
-        return getBound(family).getPort();
+    SockAddr getBound(sa_family_t family = AF_UNSPEC) const {
+        std::lock_guard<std::mutex> lk(lock);
+        return getBoundRef(family);
     }
+    in_port_t getPort(sa_family_t family = AF_UNSPEC) const {
+        std::lock_guard<std::mutex> lk(lock);
+        return getBoundRef(family).getPort();
+    }
+
+    virtual const SockAddr& getBoundRef(sa_family_t family = AF_UNSPEC) const = 0;
 
     virtual void stop() = 0;
 protected:
 
     inline void onReceived(std::unique_ptr<ReceivedPacket>&& packet) {
+        std::lock_guard<std::mutex> lk(lock);
         if (rx_callback)
             rx_callback(std::move(packet));
     }
+protected:
+    mutable std::mutex lock;
 private:
     OnReceive rx_callback;
 };
@@ -93,12 +103,18 @@ public:
 
     int sendTo(const SockAddr& dest, const uint8_t* data, size_t size, bool replied) override;
 
-    const SockAddr& getBound(sa_family_t family = AF_UNSPEC) const override {
+    const SockAddr& getBoundRef(sa_family_t family = AF_UNSPEC) const override {
         return (family == AF_INET6) ? bound6 : bound4;
     }
 
-    bool hasIPv4() const override { return s4 != -1; }
-    bool hasIPv6() const override { return s6 != -1; }
+    bool hasIPv4() const override {
+        std::lock_guard<std::mutex> lk(lock);
+        return s4 != -1;
+    }
+    bool hasIPv6() const override {
+        std::lock_guard<std::mutex> lk(lock);
+        return s6 != -1;
+    }
 
     void stop() override;
 private:

include/opendht/peer_discovery.h

@@ -22,10 +22,13 @@
 #include "def.h"
 #include "sockaddr.h"
 #include "infohash.h"
+#include "log_enable.h"
 
 #include <thread>
-#include <mutex>
-#include <condition_variable>
+
+namespace asio {
+class io_context;
+}
 
 namespace dht {
 
@@ -35,7 +38,7 @@ public:
     static constexpr in_port_t DEFAULT_PORT = 8888;
     using ServiceDiscoveredCallback = std::function<void(msgpack::object&&, SockAddr&&)>;
 
-    PeerDiscovery(in_port_t port = DEFAULT_PORT);
+    PeerDiscovery(in_port_t port = DEFAULT_PORT, std::shared_ptr<asio::io_context> ioContext = {}, std::shared_ptr<Logger> logger = {});
     ~PeerDiscovery();
 
     /**
@@ -51,7 +54,7 @@ public:
     }
 
     /**
-     * startPublish - Keeping sending data until node is joinned or stop is called - msgpack
+     * startPublish - Keeping sending data until node is joinned or stop is called
     */
     void startPublish(const std::string &type, const msgpack::sbuffer &pack_buf);
     void startPublish(sa_family_t domain, const std::string &type, const msgpack::sbuffer &pack_buf);
@@ -79,20 +82,12 @@ public:
     bool stopPublish(const std::string &type);
     bool stopPublish(sa_family_t domain, const std::string &type);
 
-    /**
-     * Configure the sockopt to be able to listen multicast group
-    */
-    static void joinMulticast(int sockfd, sa_family_t family);
-
-    /**
-     * Join the threads
-    */
-    void join();
-
 private:
     class DomainPeerDiscovery;
     std::unique_ptr<DomainPeerDiscovery> peerDiscovery4_;
     std::unique_ptr<DomainPeerDiscovery> peerDiscovery6_;
+    std::shared_ptr<asio::io_context> ioContext_;
+    std::thread ioRunnner_;
 };
 
 }

include/opendht/rate_limiter.h

@@ -23,19 +23,23 @@
 
 namespace dht {
 
-template<size_t Quota, unsigned long Period=1>
 class RateLimiter {
 public:
+    RateLimiter(size_t quota, const duration& period = std::chrono::seconds(1))
+     : quota_(quota), period_(period) {}
+
     /** Clear outdated records and return current quota usage */
     size_t maintain(const time_point& now) {
-        auto limit = now - std::chrono::seconds(Period);
+        auto limit = now - period_;
         while (not records.empty() and records.front() < limit)
             records.pop();
         return records.size();
     }
     /** Return false if quota is reached, insert record and return true otherwise. */
     bool limit(const time_point& now) {
-        if (maintain(now) >= Quota)
+        if (quota_ == std::numeric_limits<size_t>::max())
+            return true;
+        if (maintain(now) >= quota_)
             return false;
         records.emplace(now);
         return true;
@@ -44,6 +48,8 @@ public:
         return records.empty();
     }
 private:
+    const size_t quota_;
+    const duration period_;
     std::queue<time_point> records {};
 };
 

include/opendht/thread_pool.h

@@ -43,9 +43,15 @@ public:
     template<class T>
     std::future<T> get(std::function<T()>&& cb) {
         auto ret = std::make_shared<std::promise<T>>();
-        run(std::bind([=](std::function<T()>& mcb) mutable {
-                ret->set_value(mcb());
-            }, std::move(cb)));
+        run([cb = std::move(cb), ret]() mutable {
+            try {
+                ret->set_value(cb());
+            } catch (...) {
+                try {
+                    ret->set_exception(std::current_exception());
+                } catch(...) {}
+            }
+        });
         return ret->get_future();
     }
     template<class T>

include/opendht/value.h

@@ -20,7 +20,7 @@
 #pragma once
 
 #include "infohash.h"
-#include "crypto.h"
+//#include "crypto.h"
 #include "utils.h"
 #include "sockaddr.h"
 
@@ -46,6 +46,12 @@ namespace dht {
 struct Value;
 struct Query;
 
+namespace crypto {
+class PublicKey;
+class PrivateKey;
+class Certificate;
+}
+
 /**
  * A storage policy is applied once to every incoming value storage requests.
  * If the policy returns false, the value is dropped.
@@ -167,7 +173,7 @@ struct OPENDHT_PUBLIC Value
         static Filter chain(Filter&& f1, Filter&& f2) {
             if (not f1) return std::move(f2);
             if (not f2) return std::move(f1);
-            return [f1,f2](const Value& v) {
+            return [f1 = std::move(f1), f2 = std::move(f2)](const Value& v) {
                 return f1(v) and f2(v);
             };
         }
@@ -180,12 +186,12 @@ struct OPENDHT_PUBLIC Value
         }
         static Filter chainAll(std::vector<Filter>&& set) {
             if (set.empty()) return {};
-            return std::bind([](const Value& v, std::vector<Filter>& s) {
-                for (const auto& f : s)
+            return [set = std::move(set)](const Value& v) {
+                for (const auto& f : set)
                     if (f and not f(v))
                         return false;
                 return true;
-            }, std::placeholders::_1, std::move(set));
+            };
         }
         static Filter chain(std::initializer_list<Filter> l) {
             return chainAll(std::vector<Filter>(l.begin(), l.end()));
@@ -241,15 +247,9 @@ struct OPENDHT_PUBLIC Value
         };
     }
 
-    static Filter OwnerFilter(const crypto::PublicKey& pk) {
-        return OwnerFilter(pk.getId());
-    }
+    static Filter OwnerFilter(const crypto::PublicKey& pk);
 
-    static Filter OwnerFilter(const InfoHash& pkh) {
-        return [pkh](const Value& v) {
-            return v.owner and v.owner->getId() == pkh;
-        };
-    }
+    static Filter OwnerFilter(const InfoHash& pkh);
 
     static Filter SeqNumFilter(uint16_t seq_no) {
         return [seq_no](const Value& v) {
@@ -341,20 +341,13 @@ struct OPENDHT_PUBLIC Value
      * Afterward, checkSignature() will return true and owner will
      * be set to the corresponding public key.
      */
-    void sign(const crypto::PrivateKey& key) {
-        if (isEncrypted())
-            throw DhtException("Can't sign encrypted data.");
-        owner = std::make_shared<const crypto::PublicKey>(key.getPublicKey());
-        signature = key.sign(getToSign());
-    }
+    void sign(const crypto::PrivateKey& key);
 
     /**
      * Check that the value is signed and that the signature matches.
      * If true, the owner field will contain the signer public key.
      */
-    bool checkSignature() const {
-        return isSigned() and owner->checkSignature(getToSign(), signature);
-    }
+    bool checkSignature() const;
 
     std::shared_ptr<const crypto::PublicKey> getOwner() const {
         return std::static_pointer_cast<const crypto::PublicKey>(owner);
@@ -363,15 +356,7 @@ struct OPENDHT_PUBLIC Value
     /**
      * Sign the value with from and returns the encrypted version for to.
      */
-    Value encrypt(const crypto::PrivateKey& from, const crypto::PublicKey& to) {
-        if (isEncrypted())
-            throw DhtException("Data is already encrypted.");
-        setRecipient(to.getId());
-        sign(from);
-        Value nv {id};
-        nv.setCypher(to.encrypt(getToEncrypt()));
-        return nv;
-    }
+    Value encrypt(const crypto::PrivateKey& from, const crypto::PublicKey& to);
 
     Value() {}
 
@@ -424,7 +409,11 @@ struct OPENDHT_PUBLIC Value
     inline bool operator== (const Value& o) {
         return id == o.id &&
         (isEncrypted() ? cypher == o.cypher :
-        ((owner == o.owner || *owner == *o.owner) && type == o.type && data == o.data && user_type == o.user_type && signature == o.signature));
+        (
+#ifndef OPENDHT_LIGHT
+            (owner == o.owner || *owner == *o.owner) &&
+#endif
+            type == o.type && data == o.data && user_type == o.user_type && signature == o.signature));
     }
 
     void setRecipient(const InfoHash& r) {
@@ -482,7 +471,8 @@ struct OPENDHT_PUBLIC Value
     template <typename Packer>
     void msgpack_pack_to_sign(Packer& pk) const
     {
-        bool has_owner = owner && *owner;
+#ifndef OPENDHT_LIGHT
+        bool has_owner = owner && *owner
         pk.pack_map((user_type.empty()?0:1) + (has_owner?(recipient ? 5 : 4):2));
         if (has_owner) { // isSigned
             pk.pack(std::string("seq"));   pk.pack(seq);
@@ -491,6 +481,9 @@ struct OPENDHT_PUBLIC Value
                 pk.pack(std::string("to")); pk.pack(recipient);
             }
         }
+#else
+        pk.pack_map((user_type.empty()?0:1) + 2);
+#endif
         pk.pack(std::string("type"));  pk.pack(type);
         pk.pack(std::string("data"));  pk.pack_bin(data.size());
                                        pk.pack_bin_body((const char*)data.data(), data.size());
@@ -535,9 +528,11 @@ struct OPENDHT_PUBLIC Value
                     pk.pack(static_cast<uint64_t>(type));
                     break;
                 case Value::Field::OwnerPk:
+#ifndef OPENDHT_LIGHT
                     if (owner)
                         owner->msgpack_pack(pk);
                     else
+#endif
                         InfoHash().msgpack_pack(pk);
                     break;
                 case Value::Field::SeqNum:

m4/ax_cxx_compile_stdcxx.m4

@@ -1,5 +1,5 @@
 # ===========================================================================
-#   http://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
+#  https://www.gnu.org/software/autoconf-archive/ax_cxx_compile_stdcxx.html
 # ===========================================================================
 #
 # SYNOPSIS
@@ -33,21 +33,23 @@
 #   Copyright (c) 2014, 2015 Google Inc.; contributed by Alexey Sokolov <sokolov@google.com>
 #   Copyright (c) 2015 Paul Norman <penorman@mac.com>
 #   Copyright (c) 2015 Moritz Klammler <moritz@klammler.eu>
+#   Copyright (c) 2016, 2018 Krzesimir Nowak <qdlacz@gmail.com>
+#   Copyright (c) 2019 Enji Cooper <yaneurabeya@gmail.com>
 #
 #   Copying and distribution of this file, with or without modification, are
 #   permitted in any medium without royalty provided the copyright notice
 #   and this notice are preserved.  This file is offered as-is, without any
 #   warranty.
 
-#serial 4
+#serial 11
 
 dnl  This macro is based on the code from the AX_CXX_COMPILE_STDCXX_11 macro
 dnl  (serial version number 13).
 
 AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
-  m4_if([$1], [11], [],
-        [$1], [14], [],
-        [$1], [17], [m4_fatal([support for C++17 not yet implemented in AX_CXX_COMPILE_STDCXX])],
+  m4_if([$1], [11], [ax_cxx_compile_alternatives="11 0x"],
+        [$1], [14], [ax_cxx_compile_alternatives="14 1y"],
+        [$1], [17], [ax_cxx_compile_alternatives="17 1z"],
         [m4_fatal([invalid first argument `$1' to AX_CXX_COMPILE_STDCXX])])dnl
   m4_if([$2], [], [],
         [$2], [ext], [],
@@ -59,18 +61,11 @@ AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
         [m4_fatal([invalid third argument `$3' to AX_CXX_COMPILE_STDCXX])])
   AC_LANG_PUSH([C++])dnl
   ac_success=no
-  AC_CACHE_CHECK(whether $CXX supports C++$1 features by default,
-  ax_cv_cxx_compile_cxx$1,
-  [AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
-    [ax_cv_cxx_compile_cxx$1=yes],
-    [ax_cv_cxx_compile_cxx$1=no])])
-  if test x$ax_cv_cxx_compile_cxx$1 = xyes; then
-    ac_success=yes
-  fi
 
   m4_if([$2], [noext], [], [dnl
   if test x$ac_success = xno; then
-    for switch in -std=gnu++$1 -std=gnu++0x; do
+    for alternative in ${ax_cxx_compile_alternatives}; do
+      switch="-std=gnu++${alternative}"
       cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
       AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
                      $cachevar,
@@ -96,22 +91,27 @@ AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
     dnl HP's aCC needs +std=c++11 according to:
     dnl http://h21007.www2.hp.com/portal/download/files/unprot/aCxx/PDF_Release_Notes/769149-001.pdf
     dnl Cray's crayCC needs "-h std=c++11"
-    for switch in -std=c++$1 -std=c++0x +std=c++$1 "-h std=c++$1"; do
-      cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
-      AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
-                     $cachevar,
-        [ac_save_CXX="$CXX"
-         CXX="$CXX $switch"
-         AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
-          [eval $cachevar=yes],
-          [eval $cachevar=no])
-         CXX="$ac_save_CXX"])
-      if eval test x\$$cachevar = xyes; then
-        CXX="$CXX $switch"
-        if test -n "$CXXCPP" ; then
-          CXXCPP="$CXXCPP $switch"
+    for alternative in ${ax_cxx_compile_alternatives}; do
+      for switch in -std=c++${alternative} +std=c++${alternative} "-h std=c++${alternative}"; do
+        cachevar=AS_TR_SH([ax_cv_cxx_compile_cxx$1_$switch])
+        AC_CACHE_CHECK(whether $CXX supports C++$1 features with $switch,
+                       $cachevar,
+          [ac_save_CXX="$CXX"
+           CXX="$CXX $switch"
+           AC_COMPILE_IFELSE([AC_LANG_SOURCE([_AX_CXX_COMPILE_STDCXX_testbody_$1])],
+            [eval $cachevar=yes],
+            [eval $cachevar=no])
+           CXX="$ac_save_CXX"])
+        if eval test x\$$cachevar = xyes; then
+          CXX="$CXX $switch"
+          if test -n "$CXXCPP" ; then
+            CXXCPP="$CXXCPP $switch"
+          fi
+          ac_success=yes
+          break
         fi
-        ac_success=yes
+      done
+      if test x$ac_success = xyes; then
         break
       fi
     done
@@ -148,6 +148,11 @@ m4_define([_AX_CXX_COMPILE_STDCXX_testbody_14],
   _AX_CXX_COMPILE_STDCXX_testbody_new_in_14
 )
 
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_17],
+  _AX_CXX_COMPILE_STDCXX_testbody_new_in_11
+  _AX_CXX_COMPILE_STDCXX_testbody_new_in_14
+  _AX_CXX_COMPILE_STDCXX_testbody_new_in_17
+)
 
 dnl  Tests for new features in C++11
 
@@ -185,11 +190,13 @@ namespace cxx11
 
     struct Base
     {
+      virtual ~Base() {}
       virtual void f() {}
     };
 
     struct Derived : public Base
     {
+      virtual ~Derived() override {}
       virtual void f() override {}
     };
 
@@ -518,7 +525,7 @@ namespace cxx14
 
   }
 
-  namespace test_digit_seperators
+  namespace test_digit_separators
   {
 
     constexpr auto ten_million = 100'000'000;
@@ -560,3 +567,385 @@ namespace cxx14
 #endif  // __cplusplus >= 201402L
 
 ]])
+
+
+dnl  Tests for new features in C++17
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_17], [[
+
+// If the compiler admits that it is not ready for C++17, why torture it?
+// Hopefully, this will speed up the test.
+
+#ifndef __cplusplus
+
+#error "This is not a C++ compiler"
+
+#elif __cplusplus < 201703L
+
+#error "This is not a C++17 compiler"
+
+#else
+
+#include <initializer_list>
+#include <utility>
+#include <type_traits>
+
+namespace cxx17
+{
+
+  namespace test_constexpr_lambdas
+  {
+
+    constexpr int foo = [](){return 42;}();
+
+  }
+
+  namespace test::nested_namespace::definitions
+  {
+
+  }
+
+  namespace test_fold_expression
+  {
+
+    template<typename... Args>
+    int multiply(Args... args)
+    {
+      return (args * ... * 1);
+    }
+
+    template<typename... Args>
+    bool all(Args... args)
+    {
+      return (args && ...);
+    }
+
+  }
+
+  namespace test_extended_static_assert
+  {
+
+    static_assert (true);
+
+  }
+
+  namespace test_auto_brace_init_list
+  {
+
+    auto foo = {5};
+    auto bar {5};
+
+    static_assert(std::is_same<std::initializer_list<int>, decltype(foo)>::value);
+    static_assert(std::is_same<int, decltype(bar)>::value);
+  }
+
+  namespace test_typename_in_template_template_parameter
+  {
+
+    template<template<typename> typename X> struct D;
+
+  }
+
+  namespace test_fallthrough_nodiscard_maybe_unused_attributes
+  {
+
+    int f1()
+    {
+      return 42;
+    }
+
+    [[nodiscard]] int f2()
+    {
+      [[maybe_unused]] auto unused = f1();
+
+      switch (f1())
+      {
+      case 17:
+        f1();
+        [[fallthrough]];
+      case 42:
+        f1();
+      }
+      return f1();
+    }
+
+  }
+
+  namespace test_extended_aggregate_initialization
+  {
+
+    struct base1
+    {
+      int b1, b2 = 42;
+    };
+
+    struct base2
+    {
+      base2() {
+        b3 = 42;
+      }
+      int b3;
+    };
+
+    struct derived : base1, base2
+    {
+        int d;
+    };
+
+    derived d1 {{1, 2}, {}, 4};  // full initialization
+    derived d2 {{}, {}, 4};      // value-initialized bases
+
+  }
+
+  namespace test_general_range_based_for_loop
+  {
+
+    struct iter
+    {
+      int i;
+
+      int& operator* ()
+      {
+        return i;
+      }
+
+      const int& operator* () const
+      {
+        return i;
+      }
+
+      iter& operator++()
+      {
+        ++i;
+        return *this;
+      }
+    };
+
+    struct sentinel
+    {
+      int i;
+    };
+
+    bool operator== (const iter& i, const sentinel& s)
+    {
+      return i.i == s.i;
+    }
+
+    bool operator!= (const iter& i, const sentinel& s)
+    {
+      return !(i == s);
+    }
+
+    struct range
+    {
+      iter begin() const
+      {
+        return {0};
+      }
+
+      sentinel end() const
+      {
+        return {5};
+      }
+    };
+
+    void f()
+    {
+      range r {};
+
+      for (auto i : r)
+      {
+        [[maybe_unused]] auto v = i;
+      }
+    }
+
+  }
+
+  namespace test_lambda_capture_asterisk_this_by_value
+  {
+
+    struct t
+    {
+      int i;
+      int foo()
+      {
+        return [*this]()
+        {
+          return i;
+        }();
+      }
+    };
+
+  }
+
+  namespace test_enum_class_construction
+  {
+
+    enum class byte : unsigned char
+    {};
+
+    byte foo {42};
+
+  }
+
+  namespace test_constexpr_if
+  {
+
+    template <bool cond>
+    int f ()
+    {
+      if constexpr(cond)
+      {
+        return 13;
+      }
+      else
+      {
+        return 42;
+      }
+    }
+
+  }
+
+  namespace test_selection_statement_with_initializer
+  {
+
+    int f()
+    {
+      return 13;
+    }
+
+    int f2()
+    {
+      if (auto i = f(); i > 0)
+      {
+        return 3;
+      }
+
+      switch (auto i = f(); i + 4)
+      {
+      case 17:
+        return 2;
+
+      default:
+        return 1;
+      }
+    }
+
+  }
+
+  namespace test_template_argument_deduction_for_class_templates
+  {
+
+    template <typename T1, typename T2>
+    struct pair
+    {
+      pair (T1 p1, T2 p2)
+        : m1 {p1},
+          m2 {p2}
+      {}
+
+      T1 m1;
+      T2 m2;
+    };
+
+    void f()
+    {
+      [[maybe_unused]] auto p = pair{13, 42u};
+    }
+
+  }
+
+  namespace test_non_type_auto_template_parameters
+  {
+
+    template <auto n>
+    struct B
+    {};
+
+    B<5> b1;
+    B<'a'> b2;
+
+  }
+
+  namespace test_structured_bindings
+  {
+
+    int arr[2] = { 1, 2 };
+    std::pair<int, int> pr = { 1, 2 };
+
+    auto f1() -> int(&)[2]
+    {
+      return arr;
+    }
+
+    auto f2() -> std::pair<int, int>&
+    {
+      return pr;
+    }
+
+    struct S
+    {
+      int x1 : 2;
+      volatile double y1;
+    };
+
+    S f3()
+    {
+      return {};
+    }
+
+    auto [ x1, y1 ] = f1();
+    auto& [ xr1, yr1 ] = f1();
+    auto [ x2, y2 ] = f2();
+    auto& [ xr2, yr2 ] = f2();
+    const auto [ x3, y3 ] = f3();
+
+  }
+
+  namespace test_exception_spec_type_system
+  {
+
+    struct Good {};
+    struct Bad {};
+
+    void g1() noexcept;
+    void g2();
+
+    template<typename T>
+    Bad
+    f(T*, T*);
+
+    template<typename T1, typename T2>
+    Good
+    f(T1*, T2*);
+
+    static_assert (std::is_same_v<Good, decltype(f(g1, g2))>);
+
+  }
+
+  namespace test_inline_variables
+  {
+
+    template<class T> void f(T)
+    {}
+
+    template<class T> inline T g(T)
+    {
+      return T{};
+    }
+
+    template<> inline void f<>(int)
+    {}
+
+    template<> int g<>(int)
+    {
+      return 5;
+    }
+
+  }
+
+}  // namespace cxx17
+
+#endif  // __cplusplus < 201703L
+
+]])

python/opendht.pyx

@@ -458,6 +458,9 @@ cdef class DhtConfig(object):
         self._config.dht_config.node_config.network = netid
     def setMaintainStorage(self, bool maintain_storage):
         self._config.dht_config.node_config.maintain_storage = maintain_storage
+    def setRateLimit(self, ssize_t max_req_per_sec, ssize_t max_peer_req_per_sec):
+        self._config.dht_config.node_config.max_req_per_sec = max_req_per_sec
+        self._config.dht_config.node_config.max_peer_req_per_sec = max_peer_req_per_sec
 
 cdef class DhtRunner(_WithID):
     cdef cpp.shared_ptr[cpp.DhtRunner] thisptr

python/opendht_cpp.pxd

@@ -211,6 +211,9 @@ cdef extern from "opendht/callbacks.h" namespace "dht":
         uint32_t network
         bool is_bootstrap
         bool maintain_storage
+        string persist_path
+        size_t max_req_per_sec
+        size_t max_peer_req_per_sec
     cppclass SecureDhtConfig:
         Config node_config
         Identity id

python/tools/pingpong.py

@@ -19,13 +19,16 @@ import opendht as dht
 import time
 import asyncio
 
+config = dht.DhtConfig()
+config.setRateLimit(-1, -1)
+
 ping_node = dht.DhtRunner()
-ping_node.run()
+ping_node.run(config=config)
 #ping_node.enableLogging()
 #ping_node.bootstrap("bootstrap.ring.cx", "4222")
 
 pong_node = dht.DhtRunner()
-pong_node.run()
+pong_node.run(config=config)
 #pong_node.enableLogging()
 pong_node.ping(ping_node.getBound())
 
@@ -42,7 +45,6 @@ def done(h, ok):
 
 def ping(node, h):
 	global i
-	time.sleep(0.0075)
 	i += 1
 	if i < MAX:
 		node.put(h, dht.Value(b"hey"), lambda ok, nodes: done(node.getNodeId().decode(), ok))

rust/.gitignore

@@ -0,0 +1,2 @@
+*.lock
+target

rust/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "opendht"
+version = "0.1.0"
+authors = ["Sébastien Blin <sebastien.blin@savoirfairelinux.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+libc="0.2.0"
+os_socketaddr="0.1.0"

rust/README.md

@@ -0,0 +1,21 @@
+# Rust bindings for opendht
+
+## Build
+
+Install rust on your system (https://rustup.rs/ is the recommanded way). Once done:
+
+```
+cargo build
+```
+
+## Run tests
+
+```
+cargo test
+```
+
+## Run dht node
+
+```
+cargo run --example dhtnode
+```

rust/examples/dhtnode.rs

@@ -0,0 +1,73 @@
+/*
+ *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+extern crate opendht;
+use std::{ thread, time };
+
+use opendht::{ InfoHash, DhtRunner, DhtRunnerConfig, Value };
+// use opendht::crypto::*;
+
+fn main() {
+    println!("{}", InfoHash::random());
+    println!("{}", InfoHash::new());
+    println!("{}", InfoHash::new().is_zero());
+    println!("{}", InfoHash::get("alice"));
+    println!("{}", InfoHash::get("alice").is_zero());
+
+
+    let mut dht = DhtRunner::new();
+    let /*mut*/ config = DhtRunnerConfig::new();
+    //// If you want to inject a certificate, uncomment the following lines and previous mut.
+    //// Note: you can generate a certificate with
+    //// openssl req -x509 -newkey rsa:4096 -sha256 -days 3650 -nodes -keyout example.key -out example.crt -subj /CN=example.com
+    //let cert = DhtCertificate::import("example.crt").ok().expect("Invalid cert file");
+    //let pk = PrivateKey::import("example.key", "");
+    //config.set_identity(cert, pk);
+    dht.run_config(1412, config);
+    dht.bootstrap("bootstrap.jami.net", 4222);
+    println!("Current node id: {}", dht.node_id());
+
+    let /* mut */ data = 42;
+    let mut get_cb = |v: Box<Value>| {
+        //data += 1;
+        println!("GET: VALUE CB - data: {} - v: {}", data, v);
+        true
+    };
+    let mut done_cb = |ok: bool| {
+        println!("GET: DONE CB - data: {} - ok: {}", data, ok);
+    };
+
+    dht.get(&InfoHash::get("alice"), &mut get_cb, &mut done_cb);
+
+    let mut put_done_cb = |ok: bool| {
+        println!("PUT: DONE CB - data: {} - ok: {}", data, ok);
+    };
+    dht.put(&InfoHash::get("bob"), Value::new("hi!"), &mut put_done_cb, false);
+
+
+    println!("Start listening /foo");
+    let mut value_cb = |v, expired| {
+        println!("LISTEN: DONE CB - data: {} - v: {} - expired: {}", data, v, expired);
+        true
+    };
+    let token = dht.listen(&InfoHash::get("foo"), &mut value_cb);
+    let one_min = time::Duration::from_secs(10);
+    thread::sleep(one_min);
+    dht.cancel_listen(&InfoHash::get("foo"), token);
+    println!("Public ips: {:#?}", dht.public_addresses());
+}

rust/src/blob.rs

@@ -0,0 +1,37 @@
+/*
+ *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+use crate::ffi::*;
+
+pub use crate::ffi::Blob;
+
+impl Blob {
+    pub fn data(&self) -> DataView {
+        unsafe {
+            dht_blob_get_data(self)
+        }
+    }
+}
+
+impl Drop for Blob {
+    fn drop(&mut self) {
+        unsafe {
+            dht_blob_delete(&mut *self)
+        }
+    }
+}

rust/src/crypto.rs

@@ -0,0 +1,194 @@
+/*
+ *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#![allow(dead_code)]
+
+pub use crate::ffi::*;
+use std::ffi::CString;
+use std::io;
+use std::io::prelude::*;
+use std::fs::File;
+use std::ptr;
+
+impl PublicKey {
+    pub fn new(data: &str) -> Box<PublicKey> {
+        unsafe {
+            Box::from_raw(dht_publickey_import(data.as_ptr(), data.len()))
+        }
+    }
+
+    pub fn unpack(&mut self, data: Vec<u8>) -> i32 {
+        unsafe {
+            dht_publickey_unpack(&mut *self, data.as_ptr(), data.len())
+        }
+    }
+
+    pub fn pack(&mut self, data: &str) -> i32 {
+        let data = CString::new(data).unwrap();
+        unsafe {
+            dht_publickey_pack(&mut *self,
+                data.as_ptr(),
+                data.as_bytes().len())
+        }
+    }
+
+    pub fn id(&self) -> InfoHash {
+        unsafe {
+            dht_publickey_get_id(self)
+        }
+    }
+
+    pub fn long_id(&self) -> PkId {
+        unsafe {
+            dht_publickey_get_long_id(self)
+        }
+    }
+
+    pub fn check_signature(&self, data: &str, signature: &str) -> bool {
+        let data = CString::new(data).unwrap();
+        let signature = CString::new(signature).unwrap();
+        unsafe {
+            dht_publickey_check_signature(self,
+                data.as_ptr(), data.as_bytes().len(),
+                signature.as_ptr(), signature.as_bytes().len())
+        }
+    }
+
+    pub fn encrypt(&self, data: &str) -> Box<Blob> {
+        let data = CString::new(data).unwrap();
+        unsafe {
+            Box::from_raw(dht_publickey_encrypt(self,
+                data.as_ptr(), data.as_bytes().len()))
+        }
+    }
+}
+
+impl Drop for PublicKey {
+    fn drop(&mut self) {
+        unsafe {
+            dht_publickey_delete(&mut *self)
+        }
+    }
+}
+
+impl PrivateKey {
+    pub fn new(key_length_bits: u32) -> Box<PrivateKey> {
+        unsafe {
+            Box::from_raw(dht_privatekey_generate(key_length_bits))
+        }
+    }
+
+    pub fn import(file: &str, password: &str) -> io::Result<Box<PrivateKey>> {
+        let mut f = File::open(file)?;
+        let mut buffer = Vec::new();
+        f.read_to_end(&mut buffer)?;
+        Ok(PrivateKey::from_bytes(&buffer, password))
+    }
+
+    pub fn from_bytes(buffer: &Vec<u8>, password: &str) -> Box<PrivateKey> {
+        unsafe {
+            Box::from_raw(dht_privatekey_import((&*buffer).as_ptr(), buffer.len(),
+                password.as_ptr() as *const i8))
+        }
+    }
+
+    pub fn public_key(&self) -> Box<PublicKey> {
+        unsafe {
+            Box::from_raw(dht_privatekey_get_publickey(self))
+        }
+    }
+
+}
+
+impl Drop for PrivateKey {
+    fn drop(&mut self) {
+        unsafe {
+            dht_privatekey_delete(&mut *self)
+        }
+    }
+}
+
+impl DhtCertificate {
+    pub fn import(file: &str) -> io::Result<Box<DhtCertificate>> {
+        let mut f = File::open(file)?;
+        let mut buffer = Vec::new();
+        f.read_to_end(&mut buffer)?;
+        Ok(DhtCertificate::from_bytes(&buffer))
+    }
+
+    pub fn from_bytes(buffer: &Vec<u8>) -> Box<DhtCertificate> {
+        unsafe {
+            Box::from_raw(dht_certificate_import((&*buffer).as_ptr(), buffer.len()))
+        }
+    }
+
+    pub fn from_slice(buffer: &str) -> Box<DhtCertificate> {
+        unsafe {
+            Box::from_raw(dht_certificate_import((&*buffer).as_ptr(), buffer.len()))
+        }
+    }
+
+    pub fn id(&self) -> InfoHash {
+        unsafe {
+            dht_certificate_get_id(&*self)
+        }
+    }
+
+    pub fn long_id(&self) -> PkId {
+        unsafe {
+            dht_certificate_get_long_id(&*self)
+        }
+    }
+
+    pub fn publickey(&self) -> Box<PublicKey> {
+        unsafe {
+            Box::from_raw(dht_certificate_get_publickey(&*self))
+        }
+    }
+}
+
+impl Drop for DhtCertificate {
+    fn drop(&mut self) {
+        unsafe {
+            dht_certificate_delete(&mut *self)
+        }
+    }
+}
+
+impl DhtIdentity {
+    pub fn new(common_name: &str) -> DhtIdentity {
+        unsafe {
+            DhtIdentity::generate(common_name, Box::from_raw(ptr::null_mut()))
+        }
+    }
+
+    pub fn generate(common_name: &str, ca: Box<DhtIdentity>) -> DhtIdentity {
+        let common_name = CString::new(common_name).unwrap();
+        unsafe {
+            dht_identity_generate(common_name.as_ptr(), &*ca)
+        }
+    }
+}
+
+impl Drop for DhtIdentity {
+    fn drop(&mut self) {
+        unsafe {
+            dht_identity_delete(&mut *self)
+        }
+    }
+}

rust/src/dhtrunner.rs

@@ -0,0 +1,315 @@
+/*
+ *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#![allow(dead_code)]
+
+use libc::c_void;
+use std::ffi::CString;
+use std::ptr;
+
+pub use crate::ffi::*;
+use std::net::SocketAddr;
+use os_socketaddr::OsSocketAddr;
+
+impl DhtRunnerConfig {
+
+    pub fn new() -> Box<DhtRunnerConfig> {
+        let mut config: Box<DhtRunnerConfig> = Box::new(DhtRunnerConfig {
+            dht_config: DhtSecureConfig {
+                node_config: DhtNodeConfig {
+                    node_id: InfoHash::new(),
+                    network: 0,
+                    is_bootstrap: false,
+                    maintain_storage: false,
+                    persist_path: ptr::null(),
+                },
+                id: DhtIdentity {
+                    privatekey: ptr::null_mut(),
+                    certificate: ptr::null_mut(),
+                },
+            },
+            threaded: false,
+            proxy_server: ptr::null(),
+            push_node_id: ptr::null(),
+            push_token: ptr::null(),
+            peer_discovery: false,
+            peer_publish: false,
+            server_ca: ptr::null_mut(),
+            client_identity: DhtIdentity {
+                privatekey: ptr::null_mut(),
+                certificate: ptr::null_mut(),
+            },
+        });
+        unsafe {
+            dht_runner_config_default(&mut *config);
+        }
+        config
+    }
+
+    pub fn set_proxy_server(&mut self, proxy_server: &str) {
+        self.proxy_server = CString::new(proxy_server).unwrap().as_ptr();
+    }
+
+    pub fn set_push_node_id(&mut self, push_node_id: &str) {
+        self.push_node_id = CString::new(push_node_id).unwrap().as_ptr();
+    }
+
+    pub fn set_push_token(&mut self, push_token: &str) {
+        self.push_token = CString::new(push_token).unwrap().as_ptr();
+    }
+
+    pub fn set_identity(&mut self, certificate: Box<DhtCertificate>, privatekey: Box<PrivateKey>) {
+        self.dht_config.id.privatekey = Box::into_raw(privatekey);
+        self.dht_config.id.certificate = Box::into_raw(certificate);
+    }
+
+}
+
+impl DhtNodeConfig
+{
+    pub fn set_persist_path(&mut self, persist_path: &str) {
+        self.persist_path = CString::new(persist_path).unwrap().as_ptr();
+    }
+}
+
+struct GetHandler<'a>
+{
+    get_cb: &'a mut(dyn FnMut(Box<Value>) -> bool),
+    done_cb: &'a mut(dyn FnMut(bool))
+}
+
+impl<'a> GetHandler<'a>
+{
+    fn get_cb(&mut self, v: Box<Value>) -> bool{
+        (self.get_cb)(v)
+    }
+
+    fn done_cb(&mut self, ok: bool) {
+        (self.done_cb)(ok)
+    }
+}
+
+extern fn get_handler_cb(v: *mut Value, ptr: *mut c_void) -> bool {
+    if ptr.is_null() {
+        return true;
+    }
+    unsafe {
+        let handler = ptr as *mut GetHandler;
+        (*handler).get_cb((*v).boxed())
+    }
+}
+
+extern fn done_handler_cb(ok: bool, ptr: *mut c_void) {
+    unsafe {
+        let handler = Box::from_raw(ptr as *mut GetHandler);
+        (*handler.done_cb)(ok)
+    }
+}
+
+struct PutHandler<'a>
+{
+    done_cb: &'a mut(dyn FnMut(bool))
+}
+
+impl<'a> PutHandler<'a>
+{
+    fn done_cb(&mut self, ok: bool) {
+        (self.done_cb)(ok)
+    }
+}
+
+extern fn put_handler_done(ok: bool, ptr: *mut c_void) {
+    unsafe {
+        let handler = Box::from_raw(ptr as *mut PutHandler);
+        (*handler.done_cb)(ok)
+    }
+}
+
+struct ListenHandler<'a>
+{
+    cb: &'a mut(dyn FnMut(Box<Value>, bool) -> bool)
+}
+
+impl<'a> ListenHandler<'a>
+{
+    fn cb(&mut self, v: Box<Value>, expired: bool) -> bool {
+        (self.cb)(v, expired)
+    }
+}
+
+extern fn listen_handler(v: *mut Value, expired: bool, ptr: *mut c_void) -> bool {
+    unsafe {
+        let handler = ptr as *mut ListenHandler;
+        (*handler).cb((*v).boxed(), expired)
+    }
+}
+
+extern fn listen_handler_done(ptr: *mut c_void) {
+    unsafe {
+        Box::from_raw(ptr as *mut ListenHandler);
+    }
+}
+
+impl DhtRunner {
+    pub fn new() -> Box<DhtRunner> {
+        unsafe {
+            Box::from_raw(dht_runner_new())
+        }
+    }
+
+    pub fn run(&mut self, port: u16) {
+        unsafe {
+            dht_runner_run(&mut *self, port)
+        }
+    }
+
+    pub fn run_config(&mut self, port: u16, config: Box<DhtRunnerConfig>) {
+        unsafe {
+            dht_runner_run_config(&mut *self, port, &*config)
+        }
+    }
+
+    pub fn bootstrap(&mut self, host: &str, service: u16) {
+        unsafe {
+            dht_runner_bootstrap(&mut *self,
+                CString::new(host).unwrap().as_ptr(),
+                CString::new(service.to_string()).unwrap().as_ptr())
+        }
+    }
+
+    pub fn node_id(&self) -> InfoHash {
+        unsafe {
+            dht_runner_get_node_id(&*self)
+        }
+    }
+
+    pub fn id(&self) -> InfoHash {
+        unsafe {
+            dht_runner_get_id(&*self)
+        }
+    }
+
+    pub fn get<'a>(&mut self, h: &InfoHash,
+                get_cb: &'a mut(dyn FnMut(Box<Value>) -> bool),
+                done_cb: &'a mut(dyn FnMut(bool))) {
+        let handler = Box::new(GetHandler {
+            get_cb,
+            done_cb,
+        });
+        let handler = Box::into_raw(handler) as *mut c_void;
+        unsafe {
+            dht_runner_get(&mut *self, h, get_handler_cb, done_handler_cb, handler)
+        }
+    }
+
+    pub fn put<'a>(&mut self, h: &InfoHash, v: Box<Value>,
+                   done_cb: &'a mut(dyn FnMut(bool)), permanent: bool) {
+        let handler = Box::new(PutHandler {
+            done_cb,
+        });
+        let handler = Box::into_raw(handler) as *mut c_void;
+        unsafe {
+            dht_runner_put(&mut *self, h, &*v, put_handler_done, handler, permanent)
+        }
+    }
+
+    pub fn put_signed<'a>(&mut self, h: &InfoHash, v: Box<Value>,
+                                                 done_cb: &'a mut(dyn FnMut(bool)), permanent: bool) {
+        let handler = Box::new(PutHandler {
+            done_cb,
+        });
+        let handler = Box::into_raw(handler) as *mut c_void;
+        unsafe {
+            dht_runner_put_signed(&mut *self, h, &*v, put_handler_done, handler, permanent)
+        }
+    }
+
+    pub fn put_encrypted<'a>(&mut self, h: &InfoHash, to: &InfoHash, v: Box<Value>,
+                             done_cb: &'a mut(dyn FnMut(bool)), permanent: bool) {
+        let handler = Box::new(PutHandler {
+            done_cb,
+        });
+        let handler = Box::into_raw(handler) as *mut c_void;
+        unsafe {
+            dht_runner_put_encrypted(&mut *self, h, to, &*v, put_handler_done, handler, permanent)
+        }
+    }
+
+    pub fn cancel_put<'a>(&mut self, h: &InfoHash, vid: u64) {
+        unsafe {
+            dht_runner_cancel_put(&mut *self, h, vid)
+        }
+    }
+
+    pub fn listen<'a>(&mut self, h: &InfoHash,
+                cb: &'a mut(dyn FnMut(Box<Value>, bool) -> bool)) -> Box<OpToken> {
+        let handler = Box::new(ListenHandler {
+            cb,
+        });
+        let handler = Box::into_raw(handler) as *mut c_void;
+        unsafe {
+            Box::from_raw(dht_runner_listen(&mut *self, h, listen_handler, listen_handler_done, handler))
+        }
+    }
+
+    pub fn cancel_listen(&mut self, h: &InfoHash, token: Box<OpToken>) {
+        unsafe {
+            dht_runner_cancel_listen(&mut *self, h, &*token)
+        }
+    }
+
+    pub fn shutdown(&mut self,
+                    done_cb: extern fn(bool, *mut c_void),
+                    cb_user_data: *mut c_void)
+    {
+        unsafe {
+            dht_runner_shutdown(&mut *self, done_cb, cb_user_data)
+        }
+    }
+
+    pub fn public_addresses(&self) -> Vec<SocketAddr> {
+        let mut result = Vec::new();
+        unsafe {
+            let mut addresses = dht_runner_get_public_address(&*self);
+            while !addresses.is_null() && !(*addresses).is_null() {
+                let sock = (*(*addresses)).into_addr();
+                if sock.is_some() {
+                    result.push(sock.unwrap());
+                }
+                addresses = (addresses as usize + std::mem::size_of::<*mut OsSocketAddr>()) as *mut *mut OsSocketAddr;
+            }
+        }
+        result
+    }
+}
+
+impl Drop for DhtRunner {
+    fn drop(&mut self) {
+        unsafe {
+            dht_runner_delete(&mut *self)
+        }
+    }
+}
+
+impl Drop for OpToken {
+    fn drop(&mut self) {
+        unsafe {
+            dht_op_token_delete(&mut *self)
+        }
+    }
+}

rust/src/ffi.rs

@@ -0,0 +1,222 @@
+/*
+ *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#![allow(dead_code)]
+
+use libc::{c_char, c_int, c_uint, c_void, in_port_t, size_t};
+use os_socketaddr::OsSocketAddr;
+
+const HASH_LEN: usize = 20;
+const PKID_LEN: usize = 32;
+
+#[repr(C)]
+pub struct DataView
+{
+    pub data: *const u8,
+    pub size: size_t
+}
+
+#[repr(C)]
+pub struct Value
+{
+    _opaque: [u8; 0]
+}
+
+#[repr(C)]
+pub struct Blob
+{
+    _opaque: [u8; 0]
+}
+
+#[repr(C)]
+#[derive(PartialEq)]
+pub struct InfoHash
+{
+    pub d: [u8; HASH_LEN],
+}
+
+#[repr(C)]
+pub struct PkId
+{
+    pub d: [u8; PKID_LEN],
+}
+
+#[repr(C)]
+pub struct PublicKey
+{
+    _opaque: [u8; 0]
+}
+
+#[repr(C)]
+pub struct PrivateKey
+{
+    _opaque: [u8; 0]
+}
+
+#[repr(C)]
+pub struct OpToken
+{
+    _opaque: [u8; 0]
+}
+
+#[repr(C)]
+pub struct DhtRunner
+{
+    _opaque: [u8; 0]
+}
+
+#[repr(C)]
+pub struct DhtNodeConfig
+{
+    pub node_id: InfoHash,
+    pub network: u32,
+    pub is_bootstrap: bool,
+    pub maintain_storage: bool,
+    pub persist_path: *const c_char,
+}
+
+#[repr(C)]
+pub struct DhtCertificate
+{
+    _opaque: [u8; 0]
+}
+
+#[repr(C)]
+pub struct DhtIdentity
+{
+    pub privatekey: *mut PrivateKey,
+    pub certificate: *mut DhtCertificate,
+}
+
+#[repr(C)]
+pub struct DhtSecureConfig
+{
+    pub node_config: DhtNodeConfig,
+    pub id: DhtIdentity,
+}
+
+#[repr(C)]
+pub struct DhtRunnerConfig
+{
+    pub dht_config: DhtSecureConfig,
+    pub threaded: bool,
+    pub proxy_server: *const c_char,
+    pub push_node_id: *const c_char,
+    pub push_token: *const c_char,
+    pub peer_discovery: bool,
+    pub peer_publish: bool,
+    pub server_ca: *mut DhtCertificate,
+    pub client_identity: DhtIdentity,
+}
+
+
+#[link(name = "opendht-c")]
+extern {
+    // dht::Value
+    pub fn dht_value_new(data: *const u8, size: size_t) -> *mut Value;
+    pub fn dht_value_ref(data: *const Value) -> *mut Value;
+    pub fn dht_value_unref(data: *mut Value);
+    pub fn dht_value_get_data(data: *const Value) -> DataView;
+    pub fn dht_value_get_id(data: *const Value) -> u64;
+    pub fn dht_value_get_owner(data: *const Value) -> *mut PublicKey;
+    pub fn dht_value_get_recipient(data: *const Value) -> InfoHash;
+    pub fn dht_value_get_user_type(data: *const Value) -> *const c_char;
+
+    // dht::Blob
+    pub fn dht_blob_get_data(data: *const Blob) -> DataView;
+    pub fn dht_blob_delete(data: *mut Blob);
+
+    // dht::InfoHash
+    pub fn dht_infohash_print(h: *const InfoHash) -> *const c_char;
+    pub fn dht_infohash_random(h: *mut InfoHash);
+    pub fn dht_infohash_get(h: *mut InfoHash, dat: *mut u8, dat_size: size_t);
+    pub fn dht_infohash_from_hex(h: *mut InfoHash, dat: *const c_char);
+    pub fn dht_infohash_is_zero(j: *const InfoHash) -> bool;
+
+    // dht::PkId
+    pub fn dht_pkid_print(h: *const PkId) -> *const c_char;
+
+    // dht::crypto::PublicKey
+    pub fn dht_publickey_import(dat: *const u8, dat_size: size_t) -> *mut PublicKey;
+    pub fn dht_publickey_delete(pk: *mut PublicKey);
+    pub fn dht_publickey_unpack(pk: *mut PublicKey, dat: *const u8, dat_size: size_t) -> c_int;
+    pub fn dht_publickey_pack(pk: *mut PublicKey, out: *const c_char, out_size: size_t) -> c_int;
+    pub fn dht_publickey_get_id(pk: *const PublicKey) -> InfoHash;
+    pub fn dht_publickey_get_long_id(pk: *const PublicKey) -> PkId;
+    pub fn dht_publickey_check_signature(pk: *const PublicKey, data: *const c_char, data_size: size_t, signature: *const c_char, signature_size: size_t) -> bool;
+    pub fn dht_publickey_encrypt(pk: *const PublicKey, data: *const c_char, data_size: size_t) -> *mut Blob;
+
+    // dht::crypto::PrivateKey
+    pub fn dht_privatekey_generate(key_length_bits: c_uint) -> *mut PrivateKey;
+    pub fn dht_privatekey_import(dat: *const u8, data_size: size_t, password: *const c_char) -> *mut PrivateKey;
+    pub fn dht_privatekey_get_publickey(pk: *const PrivateKey) -> *mut PublicKey;
+    pub fn dht_privatekey_delete(pk: *mut PrivateKey);
+
+    // dht::crypto::Certificate
+    pub fn dht_certificate_import(dat: *const u8, dat_size: size_t) -> *mut DhtCertificate;
+    pub fn dht_certificate_get_id(cert: *const DhtCertificate) -> InfoHash;
+    pub fn dht_certificate_get_long_id(cert: *const DhtCertificate) -> PkId;
+    pub fn dht_certificate_get_publickey(cert: *const DhtCertificate) -> *mut PublicKey;
+    pub fn dht_certificate_delete(cert: *mut DhtCertificate);
+
+    pub fn dht_identity_generate(common_name: *const c_char, ca: *const DhtIdentity) -> DhtIdentity;
+    pub fn dht_identity_delete(ca: *mut DhtIdentity);
+
+    // dht::OpToken
+    pub fn dht_op_token_delete(token: *mut OpToken);
+
+    // dht::DhtRunner
+    pub fn dht_runner_config_default(config: *mut DhtRunnerConfig);
+    pub fn dht_runner_new() -> *mut DhtRunner;
+    pub fn dht_runner_get_id(dht: *const DhtRunner) -> InfoHash;
+    pub fn dht_runner_get_node_id(dht: *const DhtRunner) -> InfoHash;
+    pub fn dht_runner_delete(dht: *mut DhtRunner);
+    pub fn dht_runner_run(dht: *mut DhtRunner, port: in_port_t);
+    pub fn dht_runner_run_config(dht: *mut DhtRunner, port: in_port_t, config: *const DhtRunnerConfig);
+    pub fn dht_runner_bootstrap(dht: *mut DhtRunner, host: *const c_char, service: *const c_char);
+    pub fn dht_runner_get(dht: *mut DhtRunner, h: *const InfoHash,
+                          get_cb: extern fn(*mut Value, *mut c_void) -> bool,
+                          done_cb: extern fn(bool, *mut c_void),
+                          cb_user_data: *mut c_void);
+    pub fn dht_runner_put(dht: *mut DhtRunner, h: *const InfoHash, v: *const Value,
+                          done_cb: extern fn(bool, *mut c_void),
+                          cb_user_data: *mut c_void,
+                          permanent: bool);
+    pub fn dht_runner_put_signed(dht: *mut DhtRunner, h: *const InfoHash, v: *const Value,
+                                 done_cb: extern fn(bool, *mut c_void),
+                                 cb_user_data: *mut c_void,
+                                 permanent: bool);
+    pub fn dht_runner_put_encrypted(dht: *mut DhtRunner, h: *const InfoHash,
+                                    to: *const InfoHash, v: *const Value,
+                                    done_cb: extern fn(bool, *mut c_void),
+                                    cb_user_data: *mut c_void,
+                                    permanent: bool);
+    pub fn dht_runner_put_permanent(dht: *mut DhtRunner, h: *const InfoHash, v: *const Value,
+                      done_cb: extern fn(bool, *mut c_void),
+                      cb_user_data: *mut c_void);
+    pub fn dht_runner_cancel_put(dht: *mut DhtRunner, h: *const InfoHash, vid: u64);
+    pub fn dht_runner_listen(dht: *mut DhtRunner, h: *const InfoHash,
+                      cb: extern fn(*mut Value, bool, *mut c_void) -> bool,
+                      done_cb: extern fn(*mut c_void),
+                      cb_user_data: *mut c_void) -> *mut OpToken;
+    pub fn dht_runner_cancel_listen(dht: *mut DhtRunner, h: *const InfoHash,
+                      token: *const OpToken);
+    pub fn dht_runner_shutdown(dht: *mut DhtRunner, done_cb: extern fn(bool, *mut c_void),
+                      cb_user_data: *mut c_void);
+    pub fn dht_runner_get_public_address(dht: *const DhtRunner) -> *mut *mut OsSocketAddr;
+}

rust/src/infohash.rs

@@ -0,0 +1,83 @@
+/*
+ *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+use crate::ffi::*;
+use std::ffi::CStr;
+use std::ffi::CString;
+use std::fmt;
+
+pub use crate::ffi::InfoHash;
+
+impl InfoHash {
+    pub fn new() -> InfoHash {
+        InfoHash {
+            d: [0; 20]
+        }
+    }
+
+    pub fn random() -> InfoHash {
+        let mut h = InfoHash::new();
+        unsafe {
+            dht_infohash_random(&mut h);
+        }
+        h
+    }
+
+    pub fn get(data: &str) -> InfoHash {
+        let mut h = InfoHash::new();
+        unsafe {
+            let c_str = CString::new(data).unwrap();
+            dht_infohash_get(&mut h, c_str.as_ptr() as *mut u8, data.len());
+        }
+        h
+    }
+
+    pub fn from_bytes(data: &Vec<u8>) -> InfoHash {
+        let mut h = InfoHash::new();
+        unsafe {
+            dht_infohash_get(&mut h, data.as_ptr() as *mut u8, data.len());
+        }
+        h
+    }
+
+    pub fn from_hex(data: &str) -> InfoHash {
+        let mut h = InfoHash::new();
+        unsafe {
+            let c_str = CString::new(data).unwrap();
+            dht_infohash_from_hex(&mut h, c_str.as_ptr());
+        }
+        h
+    }
+
+    pub fn is_zero(&self) -> bool {
+        unsafe {
+            dht_infohash_is_zero(self)
+        }
+    }
+}
+
+impl fmt::Display for InfoHash {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        unsafe {
+            let self_str = CStr::from_ptr(
+                    dht_infohash_print(self)
+                ).to_str().unwrap_or("");
+            write!(f, "{}", self_str)
+        }
+    }
+}

rust/src/lib.rs

@@ -0,0 +1,34 @@
+/*
+ *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+extern crate libc;
+extern crate os_socketaddr;
+
+mod blob;
+pub mod crypto;
+mod dhtrunner;
+mod ffi;
+mod infohash;
+mod pkid;
+mod value;
+
+pub use blob::Blob;
+pub use dhtrunner::{ DhtRunner, DhtRunnerConfig, OpToken };
+pub use infohash::InfoHash;
+pub use pkid::PkId;
+pub use value::{ DataView, Value };

rust/src/pkid.rs

@@ -0,0 +1,34 @@
+/*
+ *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+use crate::ffi::*;
+use std::ffi::CStr;
+use std::fmt;
+
+pub use crate::ffi::PkId;
+
+impl fmt::Display for PkId {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        unsafe {
+            let self_str = CStr::from_ptr(
+                    dht_pkid_print(self)
+                ).to_str().unwrap_or("");
+            write!(f, "{}", self_str)
+        }
+    }
+}

rust/src/value.rs

@@ -0,0 +1,107 @@
+/*
+ *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+#![allow(dead_code)]
+
+use crate::ffi::*;
+use std::fmt;
+use std::ffi::{ CString, IntoStringError };
+use std::str;
+use std::slice;
+
+pub use crate::ffi::{DataView, Value};
+
+impl Value {
+    pub fn new(data: &str) -> Box<Value> {
+        unsafe {
+            Box::from_raw(dht_value_new(data.as_bytes().as_ptr(),
+                data.as_bytes().len()))
+        }
+    }
+    pub fn from_bytes(data: &Vec<u8>) -> Box<Value> {
+        unsafe {
+            Box::from_raw(dht_value_new(data.as_ptr(),
+                data.len()))
+        }
+    }
+
+    pub fn id(&self) -> u64 {
+        unsafe {
+            dht_value_get_id(self)
+        }
+    }
+
+    fn dataview(&self) -> DataView {
+        unsafe {
+            dht_value_get_data(self)
+        }
+    }
+
+    pub fn as_bytes(&self) -> Vec<u8> {
+        unsafe {
+            let dv = dht_value_get_data(self);
+            let slice = slice::from_raw_parts_mut(dv.data as *mut _, dv.size);
+            slice.to_vec()
+        }
+    }
+
+    pub fn boxed(&mut self) -> Box<Value> {
+        unsafe {
+            Box::from_raw(dht_value_ref(self))
+        }
+    }
+
+    pub fn recipient(&self) -> InfoHash {
+        unsafe {
+            dht_value_get_recipient(self)
+        }
+    }
+
+    pub fn owner(&self) -> Option<Box<PublicKey>> {
+        unsafe {
+            let ptr = dht_value_get_owner(self);
+            if ptr.is_null() {
+                return None;
+            }
+            Some(Box::from_raw(ptr))
+        }
+    }
+
+    pub fn user_type(&self) -> Result<String, IntoStringError> {
+        unsafe {
+            CString::from_raw(dht_value_get_user_type(self) as *mut _).into_string()
+        }
+    }
+}
+
+impl Drop for Value {
+    fn drop(&mut self) {
+        unsafe {
+            dht_value_unref(&mut *self)
+        }
+    }
+}
+
+impl fmt::Display for Value {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        unsafe {
+            let dataview = self.dataview();
+            let slice = slice::from_raw_parts(dataview.data, dataview.size);
+            write!(f, "{}", str::from_utf8(slice).unwrap_or(""))
+        }
+    }
+}

src/Makefile.am

@@ -2,7 +2,7 @@ lib_LTLIBRARIES = libopendht.la
 
 libopendht_la_CPPFLAGS = @CPPFLAGS@ -I$(top_srcdir)/include/opendht @Argon2_CFLAGS@ @JsonCpp_CFLAGS@ @MsgPack_CFLAGS@ @OpenSSL_CFLAGS@ @Fmt_CFLAGS@
 libopendht_la_LIBADD   = @Argon2_LIBS@ @JsonCpp_LIBS@ @GnuTLS_LIBS@ @Nettle_LIBS@ @OpenSSL_LIBS@ @Fmt_LIBS@
-libopendht_la_LDFLAGS  = @LDFLAGS@ @Argon2_LDFLAGS@ @OpenSSL_LDFLAGS@ @Fmt_LDFLAGS@ -version-number @OPENDHT_MAJOR_VERSION@:@OPENDHT_MINOR_VERSION@:@OPENDHT_PATCH_VERSION@
+libopendht_la_LDFLAGS  = @LDFLAGS@ @Argon2_LDFLAGS@ -version-number @OPENDHT_MAJOR_VERSION@:@OPENDHT_MINOR_VERSION@:@OPENDHT_PATCH_VERSION@
 libopendht_la_SOURCES  = \
         dht.cpp \
         storage.h \
@@ -27,7 +27,6 @@ libopendht_la_SOURCES  = \
         dhtrunner.cpp \
         default_types.cpp \
         log.cpp \
-        peer_discovery.cpp \
         network_utils.cpp \
         thread_pool.cpp
 
@@ -56,7 +55,6 @@ nobase_include_HEADERS = \
         ../include/opendht/default_types.h \
         ../include/opendht/log.h \
         ../include/opendht/log_enable.h \
-        ../include/opendht/peer_discovery.h \
         ../include/opendht/network_utils.h \
         ../include/opendht/rng.h \
         ../include/opendht/thread_pool.h
@@ -77,6 +75,11 @@ libopendht_la_SOURCES += http.cpp
 nobase_include_HEADERS += ../include/opendht/proxy.h ../include/opendht/http.h
 endif
 
+if ENABLE_PEER_DISCOVERY
+libopendht_la_SOURCES += peer_discovery.cpp
+nobase_include_HEADERS += ../include/opendht/peer_discovery.h
+endif
+
 if ENABLE_INDEXATION
 libopendht_la_SOURCES += indexation/pht.cpp
 nobase_include_HEADERS += ../include/opendht/indexation/pht.h

src/callbacks.cpp

@@ -1,3 +1,25 @@
+/*
+ *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  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/>.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include "callbacks.h"
 
 namespace dht {
@@ -121,6 +143,7 @@ NodeInfo::toJson() const
     val["node_id"] = node_id.toString();
     val["ipv4"] = ipv4.toJson();
     val["ipv6"] = ipv6.toJson();
+    val["ops"] = Json::Value::LargestUInt(ongoing_ops);
     return val;
 }
 
@@ -131,6 +154,7 @@ NodeInfo::NodeInfo(const Json::Value& v)
     node_id = InfoHash(v["node_id"].asString());
     ipv4 = NodeStats(v["ipv4"]);
     ipv6 = NodeStats(v["ipv6"]);
+    ongoing_ops = v["ops"].asLargestUInt();
 }
 
 #endif

src/crypto.cpp

@@ -52,6 +52,9 @@ static std::uniform_int_distribution<uint8_t> rand_byte;
 #define GNUTLS_PKCS_PBES2_AES_256 GNUTLS_PKCS_USE_PBES2_AES_256
 #endif
 
+#define DHT_AES_LEGACY_ENCRYPT 1
+#define DHT_AES_LEGACY_DECRYPT 1
+
 namespace dht {
 namespace crypto {
 
@@ -105,7 +108,9 @@ Blob aesEncrypt(const uint8_t* data, size_t data_length, const Blob& key)
     struct gcm_aes_ctx aes;
     gcm_aes_set_key(&aes, key.size(), key.data());
     gcm_aes_set_iv(&aes, GCM_IV_SIZE, ret.data());
+#if DHT_AES_LEGACY_ENCRYPT
     gcm_aes_update(&aes, data_length, data);
+#endif
 
     gcm_aes_encrypt(&aes, data_length, ret.data() + GCM_IV_SIZE, data);
     gcm_aes_digest(&aes, GCM_DIGEST_SIZE, ret.data() + GCM_IV_SIZE + data_length);
@@ -137,21 +142,26 @@ Blob aesDecrypt(const Blob& data, const Blob& key)
 
     size_t data_sz = data.size() - GCM_IV_SIZE - GCM_DIGEST_SIZE;
     Blob ret(data_sz);
-    //gcm_aes_update(&aes, data_sz, data.data() + GCM_IV_SIZE);
     gcm_aes_decrypt(&aes, data_sz, ret.data(), data.data() + GCM_IV_SIZE);
-    //gcm_aes_digest(aes, GCM_DIGEST_SIZE, digest.data());
+    gcm_aes_digest(&aes, GCM_DIGEST_SIZE, digest.data());
 
-    // TODO compute the proper digest directly from the decryption pass
-    Blob ret_tmp(data_sz);
-    struct gcm_aes_ctx aes_d;
-    gcm_aes_set_key(&aes_d, key.size(), key.data());
-    gcm_aes_set_iv(&aes_d, GCM_IV_SIZE, data.data());
-    gcm_aes_update(&aes_d, ret.size(), ret.data());
-    gcm_aes_encrypt(&aes_d, ret.size(), ret_tmp.data(), ret.data());
-    gcm_aes_digest(&aes_d, GCM_DIGEST_SIZE, digest.data());
+    if (not std::equal(digest.begin(), digest.end(), data.end() - GCM_DIGEST_SIZE)) {
+#if DHT_AES_LEGACY_DECRYPT
+        //gcm_aes_decrypt(&aes, data_sz, ret.data(), data.data() + GCM_IV_SIZE);
+        Blob ret_tmp(data_sz);
+        struct gcm_aes_ctx aes_d;
+        gcm_aes_set_key(&aes_d, key.size(), key.data());
+        gcm_aes_set_iv(&aes_d, GCM_IV_SIZE, data.data());
+        gcm_aes_update(&aes_d, ret.size(), ret.data());
+        gcm_aes_encrypt(&aes_d, ret.size(), ret_tmp.data(), ret.data());
+        gcm_aes_digest(&aes_d, GCM_DIGEST_SIZE, digest.data());
 
-    if (not std::equal(digest.begin(), digest.end(), data.end() - GCM_DIGEST_SIZE))
+        if (not std::equal(digest.begin(), digest.end(), data.end() - GCM_DIGEST_SIZE))
+            throw DecryptError("Can't decrypt data");
+#else
         throw DecryptError("Can't decrypt data");
+#endif
+    }
 
     return ret;
 }
@@ -338,9 +348,7 @@ PrivateKey::serialize(const std::string& password) const
     size_t buf_sz = 8192;
     Blob buffer;
     buffer.resize(buf_sz);
-    int err = password.empty()
-        ? gnutls_x509_privkey_export_pkcs8(x509_key, GNUTLS_X509_FMT_PEM, nullptr,          GNUTLS_PKCS_PLAIN,         buffer.data(), &buf_sz)
-        : gnutls_x509_privkey_export_pkcs8(x509_key, GNUTLS_X509_FMT_PEM, password.c_str(), GNUTLS_PKCS_PBES2_AES_256, buffer.data(), &buf_sz);
+    auto err = serialize(buffer.data(), &buf_sz, password);
     if (err != GNUTLS_E_SUCCESS) {
         std::cerr << "Could not export private key - " << gnutls_strerror(err) << std::endl;
         return {};
@@ -349,6 +357,16 @@ PrivateKey::serialize(const std::string& password) const
     return buffer;
 }
 
+int
+PrivateKey::serialize(uint8_t* out, size_t* out_len, const std::string& password) const
+{
+    if (!x509_key)
+        return -1;
+    return password.empty()
+        ? gnutls_x509_privkey_export_pkcs8(x509_key, GNUTLS_X509_FMT_PEM, nullptr,          GNUTLS_PKCS_PLAIN,         out, out_len)
+        : gnutls_x509_privkey_export_pkcs8(x509_key, GNUTLS_X509_FMT_PEM, password.c_str(), GNUTLS_PKCS_PBES2_AES_256, out, out_len);
+}
+
 PublicKey
 PrivateKey::getPublicKey() const
 {
@@ -364,9 +382,9 @@ PublicKey::PublicKey()
         throw CryptoException(std::string("Can't initialize public key: ") + gnutls_strerror(err));
 }
 
-PublicKey::PublicKey(const Blob& dat) : PublicKey()
+PublicKey::PublicKey(const uint8_t* dat, size_t dat_size) : PublicKey()
 {
-    unpack(dat.data(), dat.size());
+    unpack(dat, dat_size);
 }
 
 PublicKey::~PublicKey()

src/default_types.cpp

@@ -15,6 +15,9 @@
  *  You should have received a copy of the GNU General Public License
  *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 
 #include "default_types.h"
 
@@ -83,6 +86,8 @@ IpServiceAnnouncement::storePolicy(InfoHash h, std::shared_ptr<Value>& v, const
 
 const ValueType DhtMessage::TYPE(1, "DHT message", std::chrono::minutes(5), DhtMessage::storePolicy);
 const ValueType IpServiceAnnouncement::TYPE(2, "Internet Service Announcement", std::chrono::minutes(15), IpServiceAnnouncement::storePolicy);
+
+#ifndef OPENDHT_LIGHT
 const ValueType ImMessage::TYPE = {3, "IM message", std::chrono::minutes(5)};
 const ValueType TrustRequest::TYPE = {4, "Certificate trust request", std::chrono::hours(24*7)};
 const ValueType IceCandidates::TYPE = {5, "ICE candidates", std::chrono::minutes(1)};
@@ -96,6 +101,13 @@ DEFAULT_TYPES
     IceCandidates::TYPE,
     TrustRequest::TYPE
 }};
+#else
+const std::array<std::reference_wrapper<const ValueType>, 1>
+DEFAULT_TYPES
+{{
+    ValueType::USER_DATA
+}};
+#endif
 
 const std::array<std::reference_wrapper<const ValueType>, 1>
 DEFAULT_INSECURE_TYPES

src/dht.cpp

@@ -39,6 +39,7 @@ constexpr std::chrono::minutes Dht::MAX_STORAGE_MAINTENANCE_EXPIRE_TIME;
 constexpr std::chrono::minutes Dht::SEARCH_EXPIRE_TIME;
 constexpr std::chrono::seconds Dht::LISTEN_EXPIRE_TIME;
 constexpr std::chrono::seconds Dht::REANNOUNCE_MARGIN;
+static constexpr size_t MAX_REQUESTS_PER_SEC {1600};
 
 NodeStatus
 Dht::getStatus(sa_family_t af) const
@@ -75,10 +76,10 @@ Dht::shutdown(ShutdownCallback cb)
     for (auto& str : store)
         *remaining += maintainStorage(str, true, str_donecb);
 
+    DHT_LOG.w("shuting down node: after storage, %u ops", *remaining);
+
     if (!*remaining) {
-        DHT_LOG.w("shuting down node: %u ops remaining", *remaining);
-        if (cb)
-            cb();
+        if (cb) cb();
     }
 }
 
@@ -921,8 +922,7 @@ Dht::put(const InfoHash& id, Sp<Value> val, DoneCallback callback, time_point cr
     }
     if (val->id == Value::INVALID_ID) {
         crypto::random_device rdev;
-        std::uniform_int_distribution<Value::Id> rand_id {};
-        val->id = rand_id(rdev);
+        val->id = std::uniform_int_distribution<Value::Id>{1}(rdev);
     }
     scheduler.syncTime();
     const auto& now = scheduler.time();
@@ -1689,11 +1689,23 @@ Dht::~Dht()
         s.second->clear();
 }
 
+net::NetworkConfig
+fromDhtConfig(const Config& config)
+{
+    net::NetworkConfig netConf;
+    netConf.network = config.network;
+    netConf.max_req_per_sec = config.max_req_per_sec ? config.max_req_per_sec : MAX_REQUESTS_PER_SEC;
+    netConf.max_peer_req_per_sec = config.max_peer_req_per_sec
+        ? config.max_peer_req_per_sec
+        : netConf.max_req_per_sec/8;
+    return netConf;
+}
+
 Dht::Dht() : store(), network_engine(DHT_LOG, scheduler, {}) {}
 
 Dht::Dht(std::unique_ptr<net::DatagramSocket>&& sock, const Config& config, const Logger& l)
     : DhtInterface(l), myid(config.node_id ? config.node_id : InfoHash::getRandom()), store(), store_quota(),
-    network_engine(myid, config.network, std::move(sock), DHT_LOG, scheduler,
+    network_engine(myid, fromDhtConfig(config), std::move(sock), DHT_LOG, scheduler,
             std::bind(&Dht::onError, this, _1, _2),
             std::bind(&Dht::onNewNode, this, _1, _2),
             std::bind(&Dht::onReportedAddr, this, _1, _2),
@@ -1908,7 +1920,7 @@ Dht::periodic(const uint8_t *buf, size_t buflen, SockAddr from)
         try {
             network_engine.processMessage(buf, buflen, std::move(from));
         } catch (const std::exception& e) {
-            DHT_LOG.e("Can't process message: %s", e.what());
+            DHT_LOG.w("Can't process message: %s", e.what());
         }
     }
     return scheduler.run();

src/dht_proxy_client.cpp

@@ -24,6 +24,7 @@
 #include "utils.h"
 
 #include <http_parser.h>
+#include <deque>
 
 namespace dht {
 
@@ -69,21 +70,44 @@ struct DhtProxyClient::ProxySearch {
     std::map<Value::Id, PermanentPut> puts {};
 };
 
+struct LineSplit {
+    void append(const char* d, size_t l) {
+        buf_.insert(buf_.end(), d, d+l);
+    }
+    bool getLine(char c) {
+        auto it = buf_.begin();
+        while (it != buf_.end()) {
+            if (*it == c) {
+                line_.clear();
+                line_.insert(line_.end(), buf_.begin(), ++it);
+                buf_.erase(buf_.begin(), it);
+                return true;
+            }
+            it++;
+        }
+        return false;
+    }
+    const std::string& line() const { return  line_; }
+private:
+    std::deque<char> buf_ {};
+    std::string line_ {};
+};
+
 DhtProxyClient::DhtProxyClient() {}
 
 DhtProxyClient::DhtProxyClient(
         std::shared_ptr<dht::crypto::Certificate> serverCA, dht::crypto::Identity clientIdentity,
         std::function<void()> signal, const std::string& serverHost,
         const std::string& pushClientId, std::shared_ptr<dht::Logger> logger)
-    :
-        clientIdentity_(clientIdentity), serverCertificate_(serverCA),
-        pushClientId_(pushClientId), loopSignal_(signal), logger_(logger)
+    : proxyUrl_(serverHost)
+    , clientIdentity_(clientIdentity), serverCertificate_(serverCA)
+    , pushClientId_(pushClientId), loopSignal_(signal)
+    , jsonReader_(Json::CharReaderBuilder{}.newCharReader())
+    , logger_(logger)
 {
-    // build http client
-    serverHostService_ = splitPort(serverHost);
-    serverHostService_.second = serverHostService_.second.empty() ? "80" :
-                                serverHostService_.second;
-    if (logger_){
+    jsonBuilder_["commentStyle"] = "None";
+    jsonBuilder_["indentation"] = "";
+    if (logger_) {
         if (serverCertificate_)
             logger_->d("[proxy:client] using ca certificate for ssl:\n%s",
                        serverCertificate_->toString(false/*chain*/).c_str());
@@ -91,8 +115,6 @@ DhtProxyClient::DhtProxyClient(
             logger_->d("[proxy:client] using client certificate for ssl:\n%s",
                        clientIdentity_.second->toString(false/*chain*/).c_str());
     }
-    // resolve once
-    resolver_ = std::make_shared<http::Resolver>(httpContext_, serverHost, logger_);
     // run http client
     httpClientThread_ = std::thread([this](){
         try {
@@ -109,18 +131,18 @@ DhtProxyClient::DhtProxyClient(
                 logger_->e("[proxy:client] run error: %s", ex.what());
         }
     });
-    if (!serverHostService_.first.empty())
+    if (!proxyUrl_.empty())
         startProxy();
 }
 
 void
 DhtProxyClient::startProxy()
 {
-    if (serverHostService_.first.empty())
+    if (proxyUrl_.empty())
         return;
 
     if (logger_)
-        logger_->d("[proxy:client] start proxy with %s", serverHostService_.first.c_str());
+        logger_->d("[proxy:client] start proxy with %s", proxyUrl_.c_str());
 
     nextProxyConfirmationTimer_ = std::make_shared<asio::steady_timer>(httpContext_, std::chrono::steady_clock::now());
     nextProxyConfirmationTimer_->async_wait(std::bind(&DhtProxyClient::handleProxyConfirm, this, std::placeholders::_1));
@@ -140,7 +162,7 @@ DhtProxyClient::handleProxyConfirm(const asio::error_code &ec)
             logger_->e("[proxy:client] confirm error: %s", ec.message().c_str());
         return;
     }
-    if (serverHostService_.first.empty())
+    if (proxyUrl_.empty())
         return;
     getConnectivityStatus();
 }
@@ -153,15 +175,22 @@ DhtProxyClient::~DhtProxyClient()
 void
 DhtProxyClient::stop()
 {
-    isDestroying_ = true;
-    cancelAllOperations();
-    cancelAllListeners();
-    if (infoState_)
-        infoState_->cancel = true;
-    if (statusTimer_)
-        statusTimer_->cancel();
-    if (httpClientThread_.joinable())
-        httpClientThread_.join();
+    if (not isDestroying_.exchange(true)) {
+        resolver_.reset();
+        cancelAllListeners();
+        if (infoState_)
+            infoState_->cancel = true;
+        {
+            std::lock_guard<std::mutex> lock(requestLock_);
+            for (auto& request : requests_)
+                request.second->cancel();
+        }
+        if (not httpContext_.stopped())
+            httpContext_.stop();
+        if (httpClientThread_.joinable())
+            httpClientThread_.join();
+        requests_.clear();
+    }
 }
 
 std::vector<Sp<Value>>
@@ -182,13 +211,6 @@ DhtProxyClient::getLocalById(const InfoHash& k, Value::Id id) const {
     return s->second.ops.get(id);
 }
 
-void
-DhtProxyClient::cancelAllOperations()
-{
-    if (!httpContext_.stopped())
-        httpContext_.stop();
-}
-
 void
 DhtProxyClient::cancelAllListeners()
 {
@@ -263,9 +285,6 @@ DhtProxyClient::periodic(const uint8_t*, size_t, SockAddr)
 
 void
 DhtProxyClient::setHeaderFields(http::Request& request){
-    request.set_header_field(restinio::http_field_t::host,
-                             serverHostService_.first + ":" + serverHostService_.second);
-    request.set_header_field(restinio::http_field_t::user_agent, "RESTinio client");
     request.set_header_field(restinio::http_field_t::accept, "*/*");
     request.set_header_field(restinio::http_field_t::content_type, "application/json");
 }
@@ -276,37 +295,31 @@ DhtProxyClient::get(const InfoHash& key, GetCallback cb, DoneCallback donecb, Va
     if (logger_)
         logger_->d("[proxy:client] [get] [search %s]", key.to_c_str());
 
-    auto request = std::make_shared<http::Request>(httpContext_, resolver_, logger_);
-    auto reqid = request->id();
+    if (isDestroying_) {
+        if (donecb) donecb(false, {});
+        return;
+    }
     try {
-        request->set_connection_type(restinio::http_connection_header_t::keep_alive);
-        request->set_target("/" + key.toString());
+        auto request = buildRequest("/" + key.toString());
+        auto reqid = request->id();
+        //request->set_connection_type(restinio::http_connection_header_t::keep_alive);
         request->set_method(restinio::http_method_get());
         setHeaderFields(*request);
 
         auto opstate = std::make_shared<OperationState>();
         Value::Filter filter = w.empty() ? f : f.chain(w.getFilter());
 
-        request->add_on_status_callback([this, key, opstate](unsigned int status_code){
-            if (status_code != 200){
-                if (logger_)
-                    logger_->e("[proxy:client] [get %s] status error: %i", key.to_c_str(), status_code);
-                opstate->ok.store(false);
-            }
-        });
-        request->add_on_body_callback([this, key, opstate, filter, cb](const char* at, size_t length){
+        auto rxBuf = std::make_shared<LineSplit>();
+        request->add_on_body_callback([this, key, opstate, filter, rxBuf, cb](const char* at, size_t length){
             try {
-                Json::CharReaderBuilder rbuilder;
-                auto body = std::string(at, length);
+                auto& b = *rxBuf;
+                b.append(at, length);
                 // one value per body line
-                std::string data_line;
-                std::stringstream body_stream(body);
-                while (std::getline(body_stream, data_line, '\n') and !(opstate->stop.load())){
+                while (b.getLine('\n') and !opstate->stop){
                     std::string err;
                     Json::Value json;
-                    auto* char_data = static_cast<const char*>(&data_line[0]);
-                    auto reader = std::unique_ptr<Json::CharReader>(rbuilder.newCharReader());
-                    if (!reader->parse(char_data, char_data + data_line.size(), &json, &err)){
+                    const auto& line = b.line();
+                    if (!jsonReader_->parse(line.data(), line.data() + line.size(), &json, &err)){
                         opstate->ok.store(false);
                         return;
                     }
@@ -329,47 +342,46 @@ DhtProxyClient::get(const InfoHash& key, GetCallback cb, DoneCallback donecb, Va
                 opstate->ok.store(false);
             }
         });
-        request->add_on_state_change_callback([this, reqid, opstate, donecb, key]
-                                              (http::Request::State state, const http::Response& response){
-            if (state == http::Request::State::DONE){
-                if (response.status_code != 200){
-                    if (logger_)
-                        logger_->e("[proxy:client] [get %s] failed with code=%i", key.to_c_str(), response.status_code);
-                    opstate->ok.store(false);
-                }
-                if (donecb){
-                    {
-                        std::lock_guard<std::mutex> lock(lockCallbacks_);
-                        callbacks_.emplace_back([donecb, opstate](){
-                            donecb(opstate->ok, {});
-                            opstate->stop.store(true);
-                        });
-                    }
-                    loopSignal_();
+        request->add_on_done_callback([this, reqid, opstate, donecb, key] (const http::Response& response){
+            if (response.status_code != 200) {
+                if (logger_)
+                    logger_->e("[proxy:client] [get %s] failed with code=%i", key.to_c_str(), response.status_code);
+                opstate->ok.store(false);
+                if (not response.aborted and response.status_code == 0)
+                    opFailed();
+            }
+            if (donecb) {
+                {
+                    std::lock_guard<std::mutex> lock(lockCallbacks_);
+                    callbacks_.emplace_back([donecb, opstate](){
+                        donecb(opstate->ok, {});
+                        opstate->stop.store(true);
+                    });
                 }
+                loopSignal_();
+            }
+            if (not isDestroying_) {
+                std::lock_guard<std::mutex> l(requestLock_);
                 requests_.erase(reqid);
             }
         });
-        if (serverCertificate_)
-            request->set_certificate_authority(serverCertificate_);
-        if (clientIdentity_.first and clientIdentity_.second)
-            request->set_identity(clientIdentity_);
+        {
+            std::lock_guard<std::mutex> l(requestLock_);
+            requests_[reqid] = request;
+        }
         request->send();
-        requests_[reqid] = request;
     }
     catch (const std::exception &e){
         if (logger_)
             logger_->e("[proxy:client] [get %s] error: %s", key.to_c_str(), e.what());
-        requests_.erase(reqid);
     }
 }
 
 void
 DhtProxyClient::put(const InfoHash& key, Sp<Value> val, DoneCallback cb, time_point created, bool permanent)
 {
-    if (not val){
-        if (cb)
-            cb(false, {});
+    if (not val or isDestroying_) {
+        if (cb) cb(false, {});
         return;
     }
     if (logger_)
@@ -377,35 +389,43 @@ DhtProxyClient::put(const InfoHash& key, Sp<Value> val, DoneCallback cb, time_po
 
     if (val->id == Value::INVALID_ID) {
         crypto::random_device rdev;
-        std::uniform_int_distribution<Value::Id> rand_id {};
-        val->id = rand_id(rdev);
+        val->id = std::uniform_int_distribution<Value::Id>{1}(rdev);
     }
+    std::shared_ptr<std::atomic_bool> ok;
     if (permanent) {
         std::lock_guard<std::mutex> lock(searchLock_);
         auto id = val->id;
         auto& search = searches_[key];
         auto refreshPutTimer = std::make_unique<asio::steady_timer>(httpContext_, std::chrono::steady_clock::now() +
                                                                     proxy::OP_TIMEOUT - proxy::OP_MARGIN);
-        auto ok = std::make_shared<std::atomic_bool>();
-        ok->store(true);
-        refreshPutTimer->async_wait(std::bind(&DhtProxyClient::handleRefreshPut, this,
-                                              std::placeholders::_1, key, id, ok));
+        refreshPutTimer->async_wait(std::bind(&DhtProxyClient::handleRefreshPut, this, std::placeholders::_1, key, id));
         search.puts.erase(id);
+        ok = std::make_shared<std::atomic_bool>(true);
         search.puts.emplace(std::piecewise_construct,
             std::forward_as_tuple(id),
             std::forward_as_tuple(val, std::move(refreshPutTimer), ok));
     }
-    doPut(key, val, std::move(cb), created, permanent);
+    doPut(key, val, [this, cb, ok](bool result){
+        if (ok)
+            *ok = result;
+        if (cb) {
+            std::lock_guard<std::mutex> lock(lockCallbacks_);
+            callbacks_.emplace_back([cb, result](){
+                cb(result, {});
+            });
+        }
+        loopSignal_();
+    }, created, permanent);
 }
+
 void
-DhtProxyClient::handleRefreshPut(const asio::error_code &ec, const InfoHash& key, const Value::Id id,
-                                 std::shared_ptr<std::atomic_bool> ok)
+DhtProxyClient::handleRefreshPut(const asio::error_code &ec, InfoHash key, Value::Id id)
 {
     if (ec == asio::error::operation_aborted)
         return;
     else if (ec){
         if (logger_)
-            logger_->e("[proxy:client] [listener] [refresh %s] %s", key.toString().c_str(), ec.message().c_str());
+            logger_->e("[proxy:client] [put] [refresh %s] %s", key.toString().c_str(), ec.message().c_str());
         return;
     }
     if (logger_)
@@ -415,26 +435,41 @@ DhtProxyClient::handleRefreshPut(const asio::error_code &ec, const InfoHash& key
     if (search != searches_.end()) {
         auto p = search->second.puts.find(id);
         if (p != search->second.puts.end()){
-            doPut(key, p->second.value, [ok](bool result, const std::vector<std::shared_ptr<dht::Node>>&){
+            doPut(key, p->second.value, [ok = p->second.ok](bool result){
                 *ok = result;
             }, time_point::max(), true);
-            p->second.refreshPutTimer->expires_at(std::chrono::steady_clock::now() +
-                                               proxy::OP_TIMEOUT - proxy::OP_MARGIN);
-            p->second.refreshPutTimer->async_wait(std::bind(&DhtProxyClient::handleRefreshPut, this, std::placeholders::_1, key, id, ok));
+            p->second.refreshPutTimer->expires_at(std::chrono::steady_clock::now() + proxy::OP_TIMEOUT - proxy::OP_MARGIN);
+            p->second.refreshPutTimer->async_wait(std::bind(&DhtProxyClient::handleRefreshPut, this, std::placeholders::_1, key, id));
         }
     }
 }
 
+std::shared_ptr<http::Request>
+DhtProxyClient::buildRequest(const std::string& target)
+{
+    auto resolver = resolver_;
+    if (not resolver)
+        resolver = std::make_shared<http::Resolver>(httpContext_, proxyUrl_, logger_);
+    auto request = target.empty() 
+        ? std::make_shared<http::Request>(httpContext_, resolver)
+        : std::make_shared<http::Request>(httpContext_, resolver, target);
+    if (serverCertificate_)
+        request->set_certificate_authority(serverCertificate_);
+    if (clientIdentity_.first and clientIdentity_.second)
+        request->set_identity(clientIdentity_);
+    request->set_header_field(restinio::http_field_t::user_agent, "RESTinio client");
+    return request;
+}
+
 void
-DhtProxyClient::doPut(const InfoHash& key, Sp<Value> val, DoneCallback cb, time_point /*created*/, bool permanent)
+DhtProxyClient::doPut(const InfoHash& key, Sp<Value> val, DoneCallbackSimple cb, time_point /*created*/, bool permanent)
 {
     if (logger_)
         logger_->d("[proxy:client] [put] [search %s] executing for %s", key.to_c_str(), val->toString().c_str());
 
-    auto request = std::make_shared<http::Request>(httpContext_, resolver_, logger_);
-    auto reqid = request->id();
     try {
-        request->set_target("/" + key.toString());
+        auto request = buildRequest("/" + key.toString());
+        auto reqid = request->id();
         request->set_method(restinio::http_method_post());
         setHeaderFields(*request);
 
@@ -452,52 +487,31 @@ DhtProxyClient::doPut(const InfoHash& key, Sp<Value> val, DoneCallback cb, time_
 #endif
             }
         }
-        Json::StreamWriterBuilder wbuilder;
-        wbuilder["commentStyle"] = "None";
-        wbuilder["indentation"] = "";
-        auto body = Json::writeString(wbuilder, json);
-        request->set_body(body);
-
-        auto ok = std::make_shared<std::atomic_bool>();
-        ok->store(true);
-
-        request->add_on_status_callback([this, key, ok](unsigned int status_code){
-            if (status_code != 200){
+        request->set_body(Json::writeString(jsonBuilder_, json));
+        request->add_on_done_callback([this, reqid, cb] (const http::Response& response){
+            bool ok = response.status_code == 200;
+            if (not ok) {
                 if (logger_)
-                    logger_->e("[proxy:client] [put %s] status error: %i", key.to_c_str(), status_code);
-                ok->store(false);
+                    logger_->e("[proxy:client] [status] failed with code=%i", response.status_code);
+                if (not response.aborted and response.status_code == 0)
+                    opFailed();
             }
-            return 0;
-        });
-        request->add_on_state_change_callback([this, reqid, ok, cb, key]
-                                              (http::Request::State state, const http::Response& response){
-            if (state == http::Request::State::DONE){
-                if (response.status_code != 200)
-                    if (logger_)
-                        logger_->e("[proxy:client] [status] failed with code=%i", response.status_code);
-                if (cb){
-                    {
-                        std::lock_guard<std::mutex> lock(lockCallbacks_);
-                        callbacks_.emplace_back([cb, ok](){
-                            cb(ok->load(), {});
-                        });
-                    }
-                    loopSignal_();
-                }
+            if (cb)
+                cb(ok);
+            if (not isDestroying_) {
+                std::lock_guard<std::mutex> l(requestLock_);
                 requests_.erase(reqid);
             }
         });
-        if (serverCertificate_)
-            request->set_certificate_authority(serverCertificate_);
-        if (clientIdentity_.first and clientIdentity_.second)
-            request->set_identity(clientIdentity_);
+        {
+            std::lock_guard<std::mutex> l(requestLock_);
+            requests_[reqid] = request;
+        }
         request->send();
-        requests_[reqid] = request;
     }
     catch (const std::exception &e){
         if (logger_)
             logger_->e("[proxy:client] [put %s] error: %s", key.to_c_str(), e.what());
-        requests_.erase(reqid);
     }
 }
 
@@ -556,146 +570,73 @@ DhtProxyClient::getProxyInfos()
 {
     if (logger_)
         logger_->d("[proxy:client] [info] requesting proxy server node information");
-    std::lock_guard<std::mutex> l(statusLock_);
-
     auto infoState = std::make_shared<InfoState>();
-    if (infoState_)
-        infoState_->cancel = true;
-    infoState_ = infoState;
     {
         std::lock_guard<std::mutex> l(lockCurrentProxyInfos_);
+        if (infoState_)
+            infoState_->cancel = true;
+        infoState_ = infoState;
         if (statusIpv4_ == NodeStatus::Disconnected)
             statusIpv4_ = NodeStatus::Connecting;
         if (statusIpv6_ == NodeStatus::Disconnected)
             statusIpv6_ = NodeStatus::Connecting;
     }
-    // Try to contact the proxy and set the status to connected when done.
-    // will change the connectivity status
-    if (!statusTimer_)
-        statusTimer_ = std::make_shared<asio::steady_timer>(httpContext_);
-    statusTimer_->expires_at(std::chrono::steady_clock::now());
-    statusTimer_->async_wait(std::bind(&DhtProxyClient::handleProxyStatus, this,
-                             std::placeholders::_1, infoState));
-}
-
-void
-DhtProxyClient::handleProxyStatus(const asio::error_code& ec, std::shared_ptr<InfoState> infoState)
-{
-    if (ec == asio::error::operation_aborted)
-        return;
-    else if (ec){
-        if (logger_)
-            logger_->e("[proxy:client] [status] handling error: %s", ec.message().c_str());
-        return;
-    }
     if (logger_)
         logger_->d("[proxy:client] [status] sending request");
 
-    resolver_->add_callback([this, infoState](const asio::error_code& ec,
-                                              std::vector<asio::ip::tcp::endpoint> endpoints)
-    {
-        if (ec){
-            if (logger_)
-                logger_->e("[proxy:client] [status] resolve error: %s", ec.message().c_str());
-            return;
-        }
-        std::vector<asio::ip::tcp::endpoint> endpointsIpv4;
-        std::vector<asio::ip::tcp::endpoint> endpointsIpv6;
-
-        for (auto& endpoint: endpoints){
-            try {
-                if (endpoint.address().is_v6())
-                    endpointsIpv6.push_back(endpoint);
-                if (endpoint.address().is_v4())
-                    endpointsIpv4.push_back(endpoint);
-            } catch (const std::exception&){};
-        }
-        // avoiding nested add_callback call
-        if (!endpointsIpv4.empty())
-            queryProxyInfo(infoState, AF_INET, std::move(endpointsIpv4));
-        if (!endpointsIpv6.empty())
-            queryProxyInfo(infoState, AF_INET6, std::move(endpointsIpv6));
-    });
+    auto resolver = std::make_shared<http::Resolver>(httpContext_, proxyUrl_, logger_);
+    queryProxyInfo(infoState, AF_INET, resolver);
+    queryProxyInfo(infoState, AF_INET6, resolver);
+    resolver_ = resolver;
 }
 
 void
-DhtProxyClient::queryProxyInfo(std::shared_ptr<InfoState> infoState, const sa_family_t family,
-                               std::vector<asio::ip::tcp::endpoint>&& endpoints)
+DhtProxyClient::queryProxyInfo(std::shared_ptr<InfoState> infoState, sa_family_t family, std::shared_ptr<http::Resolver> resolver)
 {
     if (logger_)
         logger_->d("[proxy:client] [status] query ipv%i info", family == AF_INET ? 4 : 6);
-    auto request = std::make_shared<http::Request>(httpContext_, std::move(endpoints),
-        resolver_->get_url().protocol == "https" ? /*ssl*/ true : false, logger_);
-    auto reqid = request->id();
     try {
-        request->set_connection_type(restinio::http_connection_header_t::keep_alive);
-        request->set_target("/");
-        request->set_method(restinio::http_method_get());
+        auto request = std::make_shared<http::Request>(httpContext_, resolver, family);
+        auto reqid = request->id();
+        request->set_method(restinio::http_method_get()); 
         setHeaderFields(*request);
-
-        auto ok = std::make_shared<std::atomic_bool>();
-        ok->store(true);
-
-        request->add_on_status_callback([this, ok, family](unsigned int status_code){
-            if (status_code != 200){
+        request->add_on_done_callback([this, reqid, family, infoState] (const http::Response& response){
+            if (infoState->cancel.load())
+                return;
+            if (response.status_code != 200) {
                 if (logger_)
-                    logger_->e("[proxy:client] [status] ipv%i status code error: %i", family, status_code);
-                ok->store(false);
-            }
-        });
-        request->add_on_body_callback([this, ok, infoState, family](const char* at, size_t length){
-            try{
+                    logger_->e("[proxy:client] [status] ipv%i failed with code=%i",
+                                family == AF_INET ? 4 : 6, response.status_code);
+                // pass along the failures
+                if ((family == AF_INET and infoState->ipv4 == 0) or (family == AF_INET6 and infoState->ipv6 == 0))
+                    onProxyInfos(Json::Value{}, family);
+            } else {
                 std::string err;
                 Json::Value proxyInfos;
-                Json::CharReaderBuilder rbuilder;
-                auto body = std::string(at, length);
-                auto* char_data = static_cast<const char*>(&body[0]);
-                auto reader = std::unique_ptr<Json::CharReader>(rbuilder.newCharReader());
-                if (!reader->parse(char_data, char_data + body.size(), &proxyInfos, &err)){
-                    ok->store(false);
+                if (!jsonReader_->parse(response.body.data(), response.body.data() + response.body.size(), &proxyInfos, &err)){
+                    onProxyInfos(Json::Value{}, family);
                     return;
                 }
                 if (not infoState->cancel)
                     onProxyInfos(proxyInfos, family);
             }
-            catch (const std::exception& e) {
-                if (logger_)
-                    logger_->e("[proxy:client] [status] body error: %s", e.what());
-                ok->store(false);
-            }
-        });
-        request->add_on_state_change_callback([this, reqid, family, infoState]
-                                              (http::Request::State state, const http::Response& response){
-            if (state == http::Request::State::DONE){
-                if (response.status_code != 200)
-                    if (logger_)
-                        logger_->e("[proxy:client] [status] ipv%i failed with code=%i",
-                                    family == AF_INET ? 4 : 6, response.status_code);
-                if (infoState->cancel.load()){
-                    // pass along the failures
-                    if (family == AF_INET and infoState->ipv4 == 0)
-                        onProxyInfos(Json::Value{}, AF_INET);
-                    if (family == AF_INET6 and infoState->ipv6 == 0)
-                    onProxyInfos(Json::Value{}, AF_INET6);
-                }
+            if (not isDestroying_) {
+                std::lock_guard<std::mutex> l(requestLock_);
                 requests_.erase(reqid);
             }
         });
 
         if (infoState->cancel.load())
             return;
-
-        if (serverCertificate_)
-            request->set_certificate_authority(serverCertificate_);
-        if (clientIdentity_.first and clientIdentity_.second)
-            request->set_identity(clientIdentity_);
+        {
+            std::lock_guard<std::mutex> l(requestLock_);
+            requests_[reqid] = request;
+        }
         request->send();
-        requests_[reqid] = request;
     }
     catch (const std::exception &e){
         if (logger_)
             logger_->e("[proxy:client] [status] error sending request: %s", e.what());
-        requests_.erase(reqid);
     }
 }
 
@@ -778,11 +719,13 @@ DhtProxyClient::listen(const InfoHash& key, ValueCallback cb, Value::Filter filt
 {
     if (logger_)
         logger_->d("[proxy:client] [listen] [search %s]", key.to_c_str());
+    if (isDestroying_)
+        return 0;
 
+    std::lock_guard<std::mutex> lock(searchLock_);
     auto& search = searches_[key];
     auto query = std::make_shared<Query>(Select{}, std::move(where));
     return search.ops.listen(cb, query, filter, [this, key](Sp<Query>, ValueCallback cb, SyncCallback) -> size_t {
-        std::lock_guard<std::mutex> lock(searchLock_);
         // Find search
         auto search = searches_.find(key);
         if (search == searches_.end()) {
@@ -933,50 +876,38 @@ DhtProxyClient::handleExpireListener(const asio::error_code &ec, const InfoHash&
 
         if (not deviceKey_.empty()) {
             // UNSUBSCRIBE
-            auto request = std::make_shared<http::Request>(httpContext_, resolver_, logger_);
+            auto request = buildRequest("/" + key.toString());
             auto reqid = request->id();
             try {
-                request->set_target("/" + key.toString());
                 request->set_method(restinio::http_method_unsubscribe());
                 setHeaderFields(*request);
 
                 Json::Value body;
                 body["key"] = deviceKey_;
                 body["client_id"] = pushClientId_;
-                Json::StreamWriterBuilder wbuilder;
-                wbuilder["commentStyle"] = "None";
-                wbuilder["indentation"] = "";
-                auto content = Json::writeString(wbuilder, body) + "\n";
-                std::replace(content.begin(), content.end(), '\n', ' ');
-                request->set_body(content);
-
-                request->add_on_status_callback([this, key](unsigned int status_code){
-                    if (status_code != 200)
+                request->set_body(Json::writeString(jsonBuilder_, body));
+                request->add_on_done_callback([this, reqid, key] (const http::Response& response){
+                    if (response.status_code != 200) {
                         if (logger_)
                             logger_->e("[proxy:client] [unsubscribe %s] failed with code=%i",
-                                       key.to_c_str(), status_code);
-                });
-                request->add_on_state_change_callback([this, reqid, key]
-                                                      (http::Request::State state, const http::Response& response){
-                    if (state == http::Request::State::DONE){
-                        if (response.status_code != 200)
-                            if (logger_)
-                                logger_->e("[proxy:client] [unsubscribe %s] failed with code=%i",
-                                           key.to_c_str(), response.status_code);
+                                        key.to_c_str(), response.status_code);
+                        if (not response.aborted and response.status_code == 0)
+                            opFailed();
+                    }
+                    if (not isDestroying_) {
+                        std::lock_guard<std::mutex> l(requestLock_);
                         requests_.erase(reqid);
                     }
                 });
-                if (serverCertificate_)
-                    request->set_certificate_authority(serverCertificate_);
-                if (clientIdentity_.first and clientIdentity_.second)
-                    request->set_identity(clientIdentity_);
+                {
+                    std::lock_guard<std::mutex> l(requestLock_);
+                    requests_[reqid] = request;
+                }
                 request->send();
-                requests_[reqid] = request;
             }
             catch (const std::exception &e){
                 if (logger_)
                      logger_->e("[proxy:client] [unsubscribe %s] failed: %s", key.to_c_str(), e.what());
-                requests_.erase(reqid);
             }
         } else {
             // stop the request
@@ -1003,42 +934,34 @@ DhtProxyClient::sendListen(const restinio::http_request_header_t header,
                            const Sp<OperationState>& opstate,
                            Listener& listener, ListenMethod method)
 {
-    auto request = std::make_shared<http::Request>(httpContext_, resolver_, logger_);
-    listener.request = request;
-    auto reqid = request->id();
+    if (logger_)
+        logger_->e("[proxy:client] [listen] sendListen: %d", (int)method);
     try {
+        auto request = buildRequest();
+        listener.request = request;
+        auto reqid = request->id();
         request->set_header(header);
         setHeaderFields(*request);
         if (method == ListenMethod::LISTEN)
             request->set_connection_type(restinio::http_connection_header_t::keep_alive);
-        std::string body;
 #ifdef OPENDHT_PUSH_NOTIFICATIONS
+        std::string body;
         if (method != ListenMethod::LISTEN)
             body = fillBody(method == ListenMethod::RESUBSCRIBE);
-#endif
         request->set_body(body);
-
-        request->add_on_status_callback([this, reqid, opstate](unsigned int status_code){
-            if (status_code != 200){
-                if (logger_)
-                    logger_->e("[proxy:client] [listen] send request #%i status error: %i", reqid, status_code);
-                opstate->ok.store(false);
-            }
-        });
-        request->add_on_body_callback([this, reqid, opstate, cb](const char* at, size_t length){
+#endif
+        auto rxBuf = std::make_shared<LineSplit>();
+        request->add_on_body_callback([this, reqid, opstate, rxBuf, cb](const char* at, size_t length){
             try {
-                Json::CharReaderBuilder rbuilder;
-                auto body = std::string(at, length);
-                std::vector<dht::Sp<dht::Value>> values;
+                auto& b = *rxBuf;
+                b.append(at, length);
+
                 // one value per body line
-                std::string data_line;
-                std::stringstream body_stream(body);
-                while (std::getline(body_stream, data_line, '\n') and !opstate->stop){
+                while (b.getLine('\n') and !opstate->stop){
                     std::string err;
                     Json::Value json;
-                    auto* char_data = static_cast<const char*>(&data_line[0]);
-                    auto reader = std::unique_ptr<Json::CharReader>(rbuilder.newCharReader());
-                    if (!reader->parse(char_data, char_data + data_line.size(), &json, &err)){
+                    const auto& line = b.line();
+                    if (!jsonReader_->parse(line.data(), line.data() + line.size(), &json, &err)){
                         opstate->ok.store(false);
                         return;
                     }
@@ -1065,33 +988,37 @@ DhtProxyClient::sendListen(const restinio::http_request_header_t header,
                 opstate->ok.store(false);
             }
         });
-        request->add_on_state_change_callback([this, reqid]
-                                              (http::Request::State state, const http::Response& response){
-            if (state == http::Request::State::DONE){
-                if (response.status_code != 200)
-                    if (logger_)
-                        logger_->e("[proxy:client] [listen] send request #%i failed with code=%i",
-                                   reqid, response.status_code);
+        request->add_on_done_callback([this, opstate, reqid] (const http::Response& response) {
+            if (response.status_code != 200) {
+                if (logger_)
+                    logger_->e("[proxy:client] [listen] send request #%i failed with code=%i",
+                                reqid, response.status_code);
+                opstate->ok.store(false);
+                if (not response.aborted and response.status_code == 0)
+                    opFailed();
+            }
+            if (not isDestroying_) {
+                std::lock_guard<std::mutex> l(requestLock_);
                 requests_.erase(reqid);
             }
         });
-        if (serverCertificate_)
-            request->set_certificate_authority(serverCertificate_);
-        if (clientIdentity_.first and clientIdentity_.second)
-            request->set_identity(clientIdentity_);
+        {
+            std::lock_guard<std::mutex> l(requestLock_);
+            requests_[reqid] = request;
+        }
         request->send();
-        requests_[reqid] = request;
     }
     catch (const std::exception &e){
         if (logger_)
-            logger_->e("[proxy:client] [listen] request #%i failed: %s", reqid, e.what());
-        requests_.erase(reqid);
+            logger_->e("[proxy:client] [listen] request failed: %s", e.what());
     }
 }
 
 void
 DhtProxyClient::opFailed()
 {
+    if (isDestroying_)
+        return;
     if (logger_)
         logger_->e("[proxy:client] proxy request failed");
     {
@@ -1125,17 +1052,15 @@ DhtProxyClient::restartListeners()
         auto key = search.first;
         for (auto& put : search.second.puts) {
             if (!*put.second.ok) {
-                auto ok = put.second.ok;
-                doPut(key, put.second.value, [ok](bool result, const std::vector<std::shared_ptr<dht::Node>>&){
+                doPut(key, put.second.value, [ok = put.second.ok](bool result){
                     *ok = result;
                 }, time_point::max(), true);
                 if (!put.second.refreshPutTimer){
                     put.second.refreshPutTimer = std::make_unique<asio::steady_timer>(httpContext_);
                 }
-                put.second.refreshPutTimer->expires_at(std::chrono::steady_clock::now() +
-                                                       proxy::OP_TIMEOUT - proxy::OP_MARGIN);
+                put.second.refreshPutTimer->expires_at(std::chrono::steady_clock::now() + proxy::OP_TIMEOUT - proxy::OP_MARGIN);
                 put.second.refreshPutTimer->async_wait(std::bind(&DhtProxyClient::handleRefreshPut, this,
-                                                       std::placeholders::_1, key, put.first, put.second.ok));
+                                                        std::placeholders::_1, key, put.first));
             }
         }
     }
@@ -1207,7 +1132,7 @@ DhtProxyClient::pushNotificationReceived(const std::map<std::string, std::string
                     put.refreshPutTimer = std::make_unique<asio::steady_timer>(httpContext_, std::chrono::steady_clock::now());
                 else
                     put.refreshPutTimer->expires_at(std::chrono::steady_clock::now());
-                put.refreshPutTimer->async_wait(std::bind(&DhtProxyClient::handleRefreshPut, this, std::placeholders::_1, key, vid, put.ok));
+                put.refreshPutTimer->async_wait(std::bind(&DhtProxyClient::handleRefreshPut, this, std::placeholders::_1, key, vid));
             } else {
                 // Refresh listen
                 for (auto& list : search.listeners)
@@ -1333,10 +1258,7 @@ DhtProxyClient::fillBody(bool resubscribe)
         // This is the first listen, we want to retrieve previous values.
         body["refresh"] = true;
     }
-    Json::StreamWriterBuilder wbuilder;
-    wbuilder["commentStyle"] = "None";
-    wbuilder["indentation"] = "";
-    auto content = Json::writeString(wbuilder, body) + "\n";
+    auto content = Json::writeString(jsonBuilder_, body) + "\n";
     std::replace(content.begin(), content.end(), '\n', ' ');
     return content;
 }

src/dht_proxy_server.cpp

@@ -18,6 +18,10 @@
  *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include "dht_proxy_server.h"
 
 #include "default_types.h"
@@ -68,40 +72,36 @@ constexpr char RESP_MSG_NO_TOKEN[] = "{\"err\":\"No token\"}";
 
 constexpr const std::chrono::minutes PRINT_STATS_PERIOD {2};
 
+using ResponseByParts = restinio::chunked_output_t;
+using ResponseByPartsBuilder = restinio::response_builder_t<ResponseByParts>;
+
 class opendht_logger_t
 {
 public:
-    opendht_logger_t(std::shared_ptr<dht::Logger> logger = {}){
-        if (logger)
-            m_logger = logger;
+    opendht_logger_t(std::shared_ptr<Logger> logger = {}) : m_logger(std::move(logger)) {}
+
+    template <typename Builder>
+    void trace(Builder&& /* msg_builder */) {
+        /* if (m_logger) m_logger->d("[proxy:server] %s", msg_builder().c_str()); */
     }
 
     template <typename Builder>
-    void trace(Builder && msg_builder){
-        if (m_logger)
-            m_logger->d("[proxy:server] %s", msg_builder().c_str());
+    void info(Builder&& msg_builder) {
+        if (m_logger) m_logger->d("[proxy:server] %s", msg_builder().c_str());
     }
 
     template <typename Builder>
-    void info(Builder && msg_builder){
-        if (m_logger)
-            m_logger->d("[proxy:server] %s", msg_builder().c_str());
+    void warn(Builder&& msg_builder) {
+        if (m_logger) m_logger->w("[proxy:server] %s", msg_builder().c_str());
     }
 
     template <typename Builder>
-    void warn(Builder && msg_builder){
-        if (m_logger)
-            m_logger->w("[proxy:server] %s", msg_builder().c_str());
-    }
-
-    template <typename Builder>
-    void error(Builder && msg_builder){
-        if (m_logger)
-            m_logger->e("[proxy:server] %s", msg_builder().c_str());
+    void error(Builder&& msg_builder) {
+        if (m_logger) m_logger->e("[proxy:server] %s", msg_builder().c_str());
     }
 
 private:
-    std::shared_ptr<dht::Logger> m_logger;
+    std::shared_ptr<Logger> m_logger;
 };
 
 // connection listener
@@ -110,10 +110,7 @@ class DhtProxyServer::ConnectionListener
 {
 public:
     ConnectionListener() {};
-    ConnectionListener(std::shared_ptr<dht::DhtRunner> dht,
-        std::shared_ptr<std::map<restinio::connection_id_t, http::ListenerSession>> listeners,
-        std::shared_ptr<std::mutex> lock, std::shared_ptr<dht::Logger> logger):
-        dht_(dht), lock_(lock), listeners_(listeners), logger_(logger) {};
+    ConnectionListener(std::function<void(restinio::connection_id_t)> onClosed) : onClosed_(std::move(onClosed)) {};
     ~ConnectionListener() {};
 
     /**
@@ -123,54 +120,28 @@ public:
     void state_changed(const restinio::connection_state::notice_t& notice) noexcept;
 
 private:
-    std::string to_str( restinio::connection_state::cause_t cause ) noexcept;
-
-    std::shared_ptr<dht::DhtRunner> dht_;
-    std::shared_ptr<std::mutex> lock_;
-    std::shared_ptr<std::map<restinio::connection_id_t, http::ListenerSession>> listeners_;
-
-    std::shared_ptr<dht::Logger> logger_;
+    std::function<void(restinio::connection_id_t)> onClosed_;
 };
 
 void
 DhtProxyServer::ConnectionListener::state_changed(const restinio::connection_state::notice_t& notice) noexcept
 {
-    std::lock_guard<std::mutex> lock(*lock_);
-    auto id = notice.connection_id();
-    auto cause = to_str(notice.cause());
-
-    if (listeners_->find(id) != listeners_->end()){
-        if (notice.cause() == restinio::connection_state::cause_t::closed){
-            if (logger_)
-                logger_->d("[proxy:server] [connection:%li] cancelling listener", id);
-            dht_->cancelListen(listeners_->at(id).hash,
-                               std::move(listeners_->at(id).token));
-            listeners_->erase(id);
-            if (logger_)
-                logger_->d("[proxy:server] %li listeners are connected", listeners_->size());
-        }
+    if (restinio::holds_alternative<restinio::connection_state::closed_t>(notice.cause())) {
+        onClosed_(notice.connection_id());
     }
 }
 
-std::string
-DhtProxyServer::ConnectionListener::to_str(restinio::connection_state::cause_t cause) noexcept
+void
+DhtProxyServer::onConnectionClosed(restinio::connection_id_t id)
 {
-    std::string result;
-    switch(cause)
-    {
-    case restinio::connection_state::cause_t::accepted:
-        result = "accepted";
-        break;
-    case restinio::connection_state::cause_t::closed:
-        result = "closed";
-        break;
-    case restinio::connection_state::cause_t::upgraded_to_websocket:
-        result = "upgraded";
-        break;
-    default:
-        result = "unknown";
+    std::lock_guard<std::mutex> lock(lockListener_);
+    auto it = listeners_.find(id);
+    if (it != listeners_.end()) {
+        dht_->cancelListen(it->second.hash, std::move(it->second.token));
+        listeners_.erase(it);
+        if (logger_)
+            logger_->d("[proxy:server] [connection:%li] listener cancelled, %li still connected", id, listeners_.size());
     }
-    return result;
 }
 
 struct DhtProxyServer::RestRouterTraitsTls : public restinio::default_tls_traits_t
@@ -195,13 +166,12 @@ struct DhtProxyServer::RestRouterTraits : public restinio::default_traits_t
 };
 
 DhtProxyServer::DhtProxyServer(
-    dht::crypto::Identity identity,
+    crypto::Identity identity,
     std::shared_ptr<DhtRunner> dht, in_port_t port, const std::string& pushServer,
-    std::shared_ptr<dht::Logger> logger
+    std::shared_ptr<Logger> logger
 )
-    :   dht_(dht), logger_(logger), lockListener_(std::make_shared<std::mutex>()),
-        listeners_(std::make_shared<std::map<restinio::connection_id_t, http::ListenerSession>>()),
-        connListener_(std::make_shared<ConnectionListener>(dht, listeners_, lockListener_, logger)),
+    :   dht_(dht), logger_(logger),
+        connListener_(std::make_shared<ConnectionListener>(std::bind(&DhtProxyServer::onConnectionClosed, this, std::placeholders::_1))),
         pushServer_(pushServer)
 {
     if (not dht_)
@@ -310,6 +280,27 @@ DhtProxyServer::io_context() const
 
 DhtProxyServer::~DhtProxyServer()
 {
+    if (dht_) {
+        std::lock_guard<std::mutex> lock(lockListener_);
+        for (auto& l : listeners_) {
+            dht_->cancelListen(l.second.hash, std::move(l.second.token));
+            if (l.second.response)
+                l.second.response->done();
+        }
+#ifdef OPENDHT_PUSH_NOTIFICATIONS
+        for (auto& lm: pushListeners_)  {
+            for (auto& ls: lm.second.listeners)
+                for (auto& l : ls.second) {
+                    if (l.expireNotifyTimer)
+                        l.expireNotifyTimer->cancel();
+                    if (l.expireTimer)
+                        l.expireTimer->cancel();
+                    dht_->cancelListen(ls.first, std::move(l.internalToken));
+                }
+        }
+        pushListeners_.clear();
+#endif
+    }
     if (logger_)
         logger_->d("[proxy:server] closing http server");
     if (httpServer_)
@@ -365,7 +356,7 @@ DhtProxyServer::updateStats() const
     stats_.pushListenersCount = pushListeners_.size();
 #endif
     stats_.putCount = puts_.size();
-    stats_.listenCount = listeners_->size();
+    stats_.listenCount = listeners_.size();
     stats_.nodeInfo = nodeInfo_;
 }
 
@@ -402,7 +393,6 @@ HttpResponse DhtProxyServer::initHttpResponse(HttpResponse response) const
     response.append_header("Server", "RESTinio");
     response.append_header(restinio::http_field::content_type, "application/json");
     response.append_header(restinio::http_field::access_control_allow_origin, "*");
-    response.connection_keep_alive();
     return response;
 }
 
@@ -490,14 +480,14 @@ DhtProxyServer::getNodeInfo(restinio::request_handle_t request,
     std::lock_guard<std::mutex> lck(statsMutex_);
     if (nodeInfo_.ipv4.good_nodes == 0 &&
         nodeInfo_.ipv6.good_nodes == 0){
-        nodeInfo_ = this->dht_->getNodeInfo();
+        nodeInfo_ = dht_->getNodeInfo();
     }
     result = nodeInfo_.toJson();
     // [ipv6:ipv4]:port or ipv4:port
     result["public_ip"] = request->remote_endpoint().address().to_string();
     auto output = Json::writeString(jsonBuilder_, result) + "\n";
 
-    auto response = this->initHttpResponse(request->create_response());
+    auto response = initHttpResponse(request->create_response());
     response.append_body(output);
     return response.done();
 }
@@ -510,17 +500,17 @@ DhtProxyServer::getStats(restinio::request_handle_t request,
     try {
         if (dht_){
             auto output = Json::writeString(jsonBuilder_, stats_.toJson()) + "\n";
-            auto response = this->initHttpResponse(request->create_response());
+            auto response = initHttpResponse(request->create_response());
             response.append_body(output);
             response.done();
         } else {
-            auto response = this->initHttpResponse(
+            auto response = initHttpResponse(
                 request->create_response(restinio::status_service_unavailable()));
             response.set_body(RESP_MSG_SERVICE_UNAVAILABLE);
             return response.done();
         }
     } catch (...){
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_internal_server_error()));
         response.set_body(RESP_MSG_INTERNAL_SERVER_ERRROR);
         return response.done();
@@ -533,22 +523,22 @@ DhtProxyServer::get(restinio::request_handle_t request,
                     restinio::router::route_params_t params)
 {
     requestNum_++;
-    dht::InfoHash infoHash(params["hash"].to_string());
+    InfoHash infoHash(params["hash"].to_string());
     if (!infoHash)
-        infoHash = dht::InfoHash::get(params["hash"].to_string());
+        infoHash = InfoHash::get(params["hash"].to_string());
 
     if (!dht_){
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_service_unavailable()));
         response.set_body(RESP_MSG_SERVICE_UNAVAILABLE);
         return response.done();
     }
 
     auto response = std::make_shared<ResponseByPartsBuilder>(
-        this->initHttpResponse(request->create_response<ResponseByParts>()));
+        initHttpResponse(request->create_response<ResponseByParts>()));
     response->flush();
     try {
-        dht_->get(infoHash, [this, response](const dht::Sp<dht::Value>& value){
+        dht_->get(infoHash, [this, response](const Sp<Value>& value){
             auto output = Json::writeString(jsonBuilder_, value->toJson()) + "\n";
             response->append_chunk(output);
             response->flush();
@@ -558,7 +548,7 @@ DhtProxyServer::get(restinio::request_handle_t request,
             response->done();
         });
     } catch (const std::exception& e){
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_internal_server_error()));
         response.set_body(RESP_MSG_INTERNAL_SERVER_ERRROR);
         return response.done();
@@ -571,27 +561,27 @@ DhtProxyServer::listen(restinio::request_handle_t request,
                        restinio::router::route_params_t params)
 {
     requestNum_++;
-    dht::InfoHash infoHash(params["hash"].to_string());
+    InfoHash infoHash(params["hash"].to_string());
     if (!infoHash)
-        infoHash = dht::InfoHash::get(params["hash"].to_string());
+        infoHash = InfoHash::get(params["hash"].to_string());
 
     if (!dht_){
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_service_unavailable()));
         response.set_body(RESP_MSG_SERVICE_UNAVAILABLE);
         return response.done();
     }
     auto response = std::make_shared<ResponseByPartsBuilder>(
-        this->initHttpResponse(request->create_response<ResponseByParts>()));
+        initHttpResponse(request->create_response<ResponseByParts>()));
     response->flush();
     try {
-        std::lock_guard<std::mutex> lock(*lockListener_);
+        std::lock_guard<std::mutex> lock(lockListener_);
         // save the listener to handle a disconnect
-        auto &session = (*listeners_)[request->connection_id()];
+        auto &session = listeners_[request->connection_id()];
         session.hash = infoHash;
         session.response = response;
         session.token = dht_->listen(infoHash, [this, response]
-                (const std::vector<dht::Sp<dht::Value>>& values, bool expired){
+                (const std::vector<Sp<Value>>& values, bool expired){
             for (const auto& value: values){
                 auto jsonVal = value->toJson();
                 if (expired)
@@ -604,7 +594,7 @@ DhtProxyServer::listen(restinio::request_handle_t request,
         });
 
     } catch (const std::exception& e){
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_internal_server_error()));
         response.set_body(RESP_MSG_INTERNAL_SERVER_ERRROR);
         return response.done();
@@ -620,12 +610,12 @@ DhtProxyServer::subscribe(restinio::request_handle_t request,
 {
     requestNum_++;
 
-    dht::InfoHash infoHash(params["hash"].to_string());
+    InfoHash infoHash(params["hash"].to_string());
     if (!infoHash)
-        infoHash = dht::InfoHash::get(params["hash"].to_string());
+        infoHash = InfoHash::get(params["hash"].to_string());
 
     if (!dht_){
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_service_unavailable()));
         response.set_body(RESP_MSG_SERVICE_UNAVAILABLE);
         return response.done();
@@ -633,18 +623,17 @@ DhtProxyServer::subscribe(restinio::request_handle_t request,
     try {
         std::string err;
         Json::Value root;
-        Json::CharReaderBuilder rbuilder;
         auto* char_data = reinterpret_cast<const char*>(request->body().data());
-        auto reader = std::unique_ptr<Json::CharReader>(rbuilder.newCharReader());
+        auto reader = std::unique_ptr<Json::CharReader>(jsonReaderBuilder_.newCharReader());
         if (!reader->parse(char_data, char_data + request->body().size(), &root, &err)){
-            auto response = this->initHttpResponse(
+            auto response = initHttpResponse(
                 request->create_response(restinio::status_bad_request()));
             response.set_body(RESP_MSG_JSON_INCORRECT);
             return response.done();
         }
         auto pushToken = root["key"].asString();
         if (pushToken.empty()){
-            auto response = this->initHttpResponse(
+            auto response = initHttpResponse(
                 request->create_response(restinio::status_bad_request()));
             response.set_body(RESP_MSG_NO_TOKEN);
             return response.done();
@@ -674,11 +663,11 @@ DhtProxyServer::subscribe(restinio::request_handle_t request,
                 listener.expireNotifyTimer->expires_at(timeout - proxy::OP_MARGIN);
                 // Send response header
                 auto response = std::make_shared<ResponseByPartsBuilder>(
-                    this->initHttpResponse(request->create_response<ResponseByParts>()));
+                    initHttpResponse(request->create_response<ResponseByParts>()));
                 response->flush();
                 // No Refresh
                 if (!root.isMember("refresh") or !root["refresh"].asBool()){
-                    dht_->get(infoHash, [this, response](const dht::Sp<dht::Value>& value){
+                    dht_->get(infoHash, [this, response](const Sp<Value>& value){
                         auto output = Json::writeString(jsonBuilder_, value->toJson()) + "\n";
                         response->append_chunk(output);
                         response->flush();
@@ -740,12 +729,12 @@ DhtProxyServer::subscribe(restinio::request_handle_t request,
             listener.expireTimer->expires_at(timeout);
         listener.expireTimer->async_wait(std::bind(&DhtProxyServer::handleCancelPushListen, this,
                                          std::placeholders::_1, pushToken, infoHash, clientId));
-        auto response = this->initHttpResponse(request->create_response());
+        auto response = initHttpResponse(request->create_response());
         response.set_body("{}\n");
         return response.done();
     }
     catch (...) {
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_internal_server_error()));
         response.set_body(RESP_MSG_INTERNAL_SERVER_ERRROR);
         return response.done();
@@ -759,12 +748,12 @@ DhtProxyServer::unsubscribe(restinio::request_handle_t request,
 {
     requestNum_++;
 
-    dht::InfoHash infoHash(params["hash"].to_string());
+    InfoHash infoHash(params["hash"].to_string());
     if (!infoHash)
-        infoHash = dht::InfoHash::get(params["hash"].to_string());
+        infoHash = InfoHash::get(params["hash"].to_string());
 
     if (!dht_){
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_service_unavailable()));
         response.set_body(RESP_MSG_SERVICE_UNAVAILABLE);
         return response.done();
@@ -775,12 +764,11 @@ DhtProxyServer::unsubscribe(restinio::request_handle_t request,
     try {
         std::string err;
         Json::Value root;
-        Json::CharReaderBuilder rbuilder;
         auto* char_data = reinterpret_cast<const char*>(request->body().data());
-        auto reader = std::unique_ptr<Json::CharReader>(rbuilder.newCharReader());
+        auto reader = std::unique_ptr<Json::CharReader>(jsonReaderBuilder_.newCharReader());
 
         if (!reader->parse(char_data, char_data + request->body().size(), &root, &err)){
-            auto response = this->initHttpResponse(
+            auto response = initHttpResponse(
                 request->create_response(restinio::status_bad_request()));
             response.set_body(RESP_MSG_JSON_INCORRECT);
             return response.done();
@@ -791,11 +779,11 @@ DhtProxyServer::unsubscribe(restinio::request_handle_t request,
         auto clientId = root["client_id"].asString();
 
         handleCancelPushListen(asio::error_code() /*success*/, pushToken, infoHash, clientId);
-        auto response = this->initHttpResponse(request->create_response());
+        auto response = initHttpResponse(request->create_response());
         return response.done();
     }
     catch (...) {
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_internal_server_error()));
         response.set_body(RESP_MSG_INTERNAL_SERVER_ERRROR);
         return response.done();
@@ -819,7 +807,7 @@ DhtProxyServer::handleNotifyPushListenExpire(const asio::error_code &ec, const s
 
 void
 DhtProxyServer::handleCancelPushListen(const asio::error_code &ec, const std::string pushToken,
-                                       const dht::InfoHash key, const std::string clientId)
+                                       const InfoHash key, const std::string clientId)
 {
     if (ec == asio::error::operation_aborted)
         return;
@@ -831,7 +819,7 @@ DhtProxyServer::handleCancelPushListen(const asio::error_code &ec, const std::st
     if (logger_)
         logger_->d("[proxy:server] [listen:push %s] cancelled for %s",
                    key.toString().c_str(), clientId.c_str());
-    std::lock_guard<std::mutex> lock(*lockListener_);
+    std::lock_guard<std::mutex> lock(lockListener_);
 
     auto pushListener = pushListeners_.find(pushToken);
     if (pushListener == pushListeners_.end())
@@ -861,13 +849,13 @@ DhtProxyServer::sendPushNotification(const std::string& token, Json::Value&& jso
     if (pushServer_.empty())
         return;
 
-    auto request = std::make_shared<http::Request>(io_context(), pushHostPort_.first, pushHostPort_.second,
-                                                                 httpsServer_ ? true : false, logger_);
-    auto reqid = request->id();
+    unsigned reqid = 0;
     try {
+        auto request = std::make_shared<http::Request>(io_context(), pushHostPort_.first, pushHostPort_.second,
+                                                                    httpsServer_ ? true : false, logger_);
+        reqid = request->id();
         request->set_target("/api/push");
         request->set_method(restinio::http_method_post());
-
         request->set_header_field(restinio::http_field_t::host, pushServer_.c_str());
         request->set_header_field(restinio::http_field_t::user_agent, "RESTinio client");
         request->set_header_field(restinio::http_field_t::accept, "*/*");
@@ -888,29 +876,29 @@ DhtProxyServer::sendPushNotification(const std::string& token, Json::Value&& jso
 
         Json::Value content;
         content["notifications"] = std::move(notifications);
-
-        Json::StreamWriterBuilder wbuilder;
-        wbuilder["commentStyle"] = "None";
-        wbuilder["indentation"] = "";
-
-        auto body = Json::writeString(wbuilder, content);
-        request->set_body(body);
-
+        request->set_body(Json::writeString(jsonBuilder_, content));
         request->add_on_state_change_callback([this, reqid]
-                                              (const http::Request::State state, const http::Response response){
+                                              (http::Request::State state, const http::Response& response){
             if (state == http::Request::State::DONE){
                 if (logger_ and response.status_code != 200)
                     logger_->e("[proxy:server] [notification] push failed: %i", response.status_code);
+                std::lock_guard<std::mutex> l(requestLock_);
                 requests_.erase(reqid);
             }
         });
+        {
+            std::lock_guard<std::mutex> l(requestLock_);
+            requests_[reqid] = request;
+        }
         request->send();
-        requests_[reqid] = request;
     }
     catch (const std::exception &e){
         if (logger_)
             logger_->e("[proxy:server] [notification] error send push: %i", e.what());
-        requests_.erase(reqid);
+        if (reqid) {
+            std::lock_guard<std::mutex> l(requestLock_);
+            requests_.erase(reqid);
+        }
     }
 }
 
@@ -948,19 +936,17 @@ DhtProxyServer::put(restinio::request_handle_t request,
                     restinio::router::route_params_t params)
 {
     requestNum_++;
-    dht::InfoHash infoHash(params["hash"].to_string());
+    InfoHash infoHash(params["hash"].to_string());
     if (!infoHash)
-        infoHash = dht::InfoHash::get(params["hash"].to_string());
+        infoHash = InfoHash::get(params["hash"].to_string());
 
     if (!dht_){
-        auto response = this->initHttpResponse(
-            request->create_response(restinio::status_service_unavailable()));
+        auto response = initHttpResponse(request->create_response(restinio::status_service_unavailable()));
         response.set_body(RESP_MSG_SERVICE_UNAVAILABLE);
         return response.done();
     }
     else if (request->body().empty()){
-        auto response = this->initHttpResponse(
-            request->create_response(restinio::status_bad_request()));
+        auto response = initHttpResponse(request->create_response(restinio::status_bad_request()));
         response.set_body(RESP_MSG_MISSING_PARAMS);
         return response.done();
     }
@@ -968,17 +954,16 @@ DhtProxyServer::put(restinio::request_handle_t request,
     try {
         std::string err;
         Json::Value root;
-        Json::CharReaderBuilder rbuilder;
         auto* char_data = reinterpret_cast<const char*>(request->body().data());
-        auto reader = std::unique_ptr<Json::CharReader>(rbuilder.newCharReader());
+        auto reader = std::unique_ptr<Json::CharReader>(jsonReaderBuilder_.newCharReader());
 
         if (reader->parse(char_data, char_data + request->body().size(), &root, &err)){
-            auto value = std::make_shared<dht::Value>(root);
+            auto value = std::make_shared<Value>(root);
             bool permanent = root.isMember("permanent");
             if (logger_)
                 logger_->d("[proxy:server] [put %s] %s %s", infoHash.toString().c_str(),
                           value->toString().c_str(), (permanent ? "permanent" : ""));
-            if (permanent){
+            if (permanent) {
                 std::string pushToken, clientId, platform;
                 auto& pVal = root["permanent"];
                 if (pVal.isObject()){
@@ -1024,23 +1009,22 @@ DhtProxyServer::put(restinio::request_handle_t request,
                     if (pput.expireNotifyTimer)
                         pput.expireNotifyTimer->expires_at(timeout - proxy::OP_MARGIN);
                 }
-                lock.unlock();
             }
             dht_->put(infoHash, value, [this, request, value](bool ok){
                 if (ok){
                     auto output = Json::writeString(jsonBuilder_, value->toJson()) + "\n";
-                    auto response = this->initHttpResponse(request->create_response());
+                    auto response = initHttpResponse(request->create_response());
                     response.append_body(output);
                     response.done();
                 } else {
-                    auto response = this->initHttpResponse(request->create_response(
+                    auto response = initHttpResponse(request->create_response(
                         restinio::status_bad_gateway()));
                     response.set_body(RESP_MSG_PUT_FAILED);
                     response.done();
                 }
-            }, dht::time_point::max(), permanent);
+            }, time_point::max(), permanent);
         } else {
-            auto response = this->initHttpResponse(
+            auto response = initHttpResponse(
                 request->create_response(restinio::status_bad_request()));
             response.set_body(RESP_MSG_JSON_INCORRECT);
             return response.done();
@@ -1048,7 +1032,7 @@ DhtProxyServer::put(restinio::request_handle_t request,
     } catch (const std::exception& e){
         if (logger_)
             logger_->d("[proxy:server] error in put: %s", e.what());
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_internal_server_error()));
         response.set_body(RESP_MSG_INTERNAL_SERVER_ERRROR);
         return response.done();
@@ -1058,22 +1042,23 @@ DhtProxyServer::put(restinio::request_handle_t request,
 
 #ifdef OPENDHT_PROXY_SERVER_IDENTITY
 
-RequestStatus DhtProxyServer::putSigned(restinio::request_handle_t request,
-                                        restinio::router::route_params_t params) const
+RequestStatus
+DhtProxyServer::putSigned(restinio::request_handle_t request,
+                          restinio::router::route_params_t params) const
 {
     requestNum_++;
-    dht::InfoHash infoHash(params["hash"].to_string());
+    InfoHash infoHash(params["hash"].to_string());
     if (!infoHash)
-        infoHash = dht::InfoHash::get(params["hash"].to_string());
+        infoHash = InfoHash::get(params["hash"].to_string());
 
-    if (!dht_){
-        auto response = this->initHttpResponse(
+    if (!dht_) {
+        auto response = initHttpResponse(
             request->create_response(restinio::status_service_unavailable()));
         response.set_body(RESP_MSG_SERVICE_UNAVAILABLE);
         return response.done();
     }
     else if (request->body().empty()){
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_bad_request()));
         response.set_body(RESP_MSG_MISSING_PARAMS);
         return response.done();
@@ -1082,9 +1067,8 @@ RequestStatus DhtProxyServer::putSigned(restinio::request_handle_t request,
     try {
         std::string err;
         Json::Value root;
-        Json::CharReaderBuilder rbuilder;
         auto* char_data = reinterpret_cast<const char*>(request->body().data());
-        auto reader = std::unique_ptr<Json::CharReader>(rbuilder.newCharReader());
+        auto reader = std::unique_ptr<Json::CharReader>(jsonReaderBuilder_.newCharReader());
 
         if (reader->parse(char_data, char_data + request->body().size(), &root, &err)){
 
@@ -1093,18 +1077,18 @@ RequestStatus DhtProxyServer::putSigned(restinio::request_handle_t request,
             dht_->putSigned(infoHash, value, [this, request, value](bool ok){
                 if (ok){
                     auto output = Json::writeString(jsonBuilder_, value->toJson()) + "\n";
-                    auto response = this->initHttpResponse(request->create_response());
+                    auto response = initHttpResponse(request->create_response());
                     response.append_body(output);
                     response.done();
                 } else {
-                    auto response = this->initHttpResponse(request->create_response(
+                    auto response = initHttpResponse(request->create_response(
                         restinio::status_bad_gateway()));
                     response.set_body(RESP_MSG_PUT_FAILED);
                     response.done();
                 }
             });
         } else {
-            auto response = this->initHttpResponse(
+            auto response = initHttpResponse(
                 request->create_response(restinio::status_bad_request()));
             response.set_body(RESP_MSG_JSON_INCORRECT);
             return response.done();
@@ -1112,7 +1096,7 @@ RequestStatus DhtProxyServer::putSigned(restinio::request_handle_t request,
     } catch (const std::exception& e){
         if (logger_)
             logger_->d("[proxy:server] error in put: %s", e.what());
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_internal_server_error()));
         response.set_body(RESP_MSG_INTERNAL_SERVER_ERRROR);
         return response.done();
@@ -1125,18 +1109,18 @@ DhtProxyServer::putEncrypted(restinio::request_handle_t request,
                              restinio::router::route_params_t params)
 {
     requestNum_++;
-    dht::InfoHash infoHash(params["hash"].to_string());
+    InfoHash infoHash(params["hash"].to_string());
     if (!infoHash)
-        infoHash = dht::InfoHash::get(params["hash"].to_string());
+        infoHash = InfoHash::get(params["hash"].to_string());
 
     if (!dht_){
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_service_unavailable()));
         response.set_body(RESP_MSG_SERVICE_UNAVAILABLE);
         return response.done();
     }
     else if (request->body().empty()){
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_bad_request()));
         response.set_body(RESP_MSG_MISSING_PARAMS);
         return response.done();
@@ -1145,14 +1129,13 @@ DhtProxyServer::putEncrypted(restinio::request_handle_t request,
     try {
         std::string err;
         Json::Value root;
-        Json::CharReaderBuilder rbuilder;
         auto* char_data = reinterpret_cast<const char*>(request->body().data());
-        auto reader = std::unique_ptr<Json::CharReader>(rbuilder.newCharReader());
+        auto reader = std::unique_ptr<Json::CharReader>(jsonReaderBuilder_.newCharReader());
 
         if (reader->parse(char_data, char_data + request->body().size(), &root, &err)){
             InfoHash to(root["to"].asString());
             if (!to){
-                auto response = this->initHttpResponse(
+                auto response = initHttpResponse(
                     request->create_response(restinio::status_bad_request()));
                 response.set_body(RESP_MSG_DESTINATION_NOT_FOUND);
                 return response.done();
@@ -1161,18 +1144,18 @@ DhtProxyServer::putEncrypted(restinio::request_handle_t request,
             dht_->putEncrypted(infoHash, to, value, [this, request, value](bool ok){
                 if (ok){
                     auto output = Json::writeString(jsonBuilder_, value->toJson()) + "\n";
-                    auto response = this->initHttpResponse(request->create_response());
+                    auto response = initHttpResponse(request->create_response());
                     response.append_body(output);
                     response.done();
                 } else {
-                    auto response = this->initHttpResponse(request->create_response(
+                    auto response = initHttpResponse(request->create_response(
                         restinio::status_bad_gateway()));
                     response.set_body(RESP_MSG_PUT_FAILED);
                     response.done();
                 }
             });
         } else {
-            auto response = this->initHttpResponse(
+            auto response = initHttpResponse(
                 request->create_response(restinio::status_bad_request()));
             response.set_body(RESP_MSG_JSON_INCORRECT);
             return response.done();
@@ -1180,7 +1163,7 @@ DhtProxyServer::putEncrypted(restinio::request_handle_t request,
     } catch (const std::exception& e){
         if (logger_)
             logger_->d("[proxy:server] error in put: %s", e.what());
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_internal_server_error()));
         response.set_body(RESP_MSG_INTERNAL_SERVER_ERRROR);
         return response.done();
@@ -1194,7 +1177,7 @@ RequestStatus
 DhtProxyServer::options(restinio::request_handle_t request,
                         restinio::router::route_params_t /*params*/)
 {
-    this->requestNum_++;
+    requestNum_++;
 #ifdef OPENDHT_PROXY_SERVER_IDENTITY
     const auto methods = "OPTIONS, GET, POST, LISTEN, SIGN, ENCRYPT";
 #else
@@ -1213,34 +1196,33 @@ DhtProxyServer::getFiltered(restinio::request_handle_t request,
 {
     requestNum_++;
     auto value = params["value"].to_string();
-    dht::InfoHash infoHash(params["hash"].to_string());
+    InfoHash infoHash(params["hash"].to_string());
     if (!infoHash)
-        infoHash = dht::InfoHash::get(params["hash"].to_string());
+        infoHash = InfoHash::get(params["hash"].to_string());
 
     if (!dht_){
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_service_unavailable()));
         response.set_body(RESP_MSG_SERVICE_UNAVAILABLE);
         return response.done();
     }
 
     auto response = std::make_shared<ResponseByPartsBuilder>(
-        this->initHttpResponse(request->create_response<ResponseByParts>()));
+        initHttpResponse(request->create_response<ResponseByParts>()));
     response->flush();
     try {
-        dht_->get(infoHash, [this, response](const dht::Sp<dht::Value>& value){
-            auto output = Json::writeString(jsonBuilder_, value->toJson()) + "\n";
-            response->append_chunk(output);
-            response->flush();
-            return true;
-        },
-        [response] (bool /*ok*/){
-            response->done();
-        },
-            {}, value
-        );
+        dht_->get(infoHash,
+            [this, response](const Sp<Value>& value) {
+                response->append_chunk(Json::writeString(jsonBuilder_, value->toJson()) + "\n");
+                response->flush();
+                return true;
+            },
+            [response] (bool /*ok*/){
+                response->done();
+            },
+            {}, value);
     } catch (const std::exception& e){
-        auto response = this->initHttpResponse(
+        auto response = initHttpResponse(
             request->create_response(restinio::status_internal_server_error()));
         response.set_body(RESP_MSG_INTERNAL_SERVER_ERRROR);
         return response.done();

src/dhtrunner.cpp

@@ -18,11 +18,16 @@
  *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include "dhtrunner.h"
 #include "securedht.h"
-#include "peer_discovery.h"
 #include "network_utils.h"
-
+#ifdef OPENDHT_PEER_DISCOVERY
+#include "peer_discovery.h"
+#endif
 #ifdef OPENDHT_PROXY_CLIENT
 #include "dht_proxy_client.h"
 #endif
@@ -100,7 +105,7 @@ DhtRunner::run(const char* ip4, const char* ip6, const char* service, const Conf
 void
 DhtRunner::run(const SockAddr& local4, const SockAddr& local6, const Config& config, Context&& context)
 {
-    if (not running) {
+    if (running == State::Idle) {
         if (not context.sock)
             context.sock.reset(new net::UdpSocket(local4, local6, context.logger ? *context.logger : Logger{}));
         run(config, std::move(context));
@@ -111,17 +116,21 @@ void
 DhtRunner::run(const Config& config, Context&& context)
 {
     std::lock_guard<std::mutex> lck(dht_mtx);
-    if (running)
+    auto expected = State::Idle;
+    if (not running.compare_exchange_strong(expected, State::Running))
         return;
 
-    if (context.logger)
+    if (context.logger) {
         logger_ = context.logger;
+        logger_->d("[runner %p] state changed to Running", this);
+    }
 
     context.sock->setOnReceive([&] (std::unique_ptr<net::ReceivedPacket>&& pkt) {
         {
             std::lock_guard<std::mutex> lck(sock_mtx);
             if (rcv.size() >= RX_QUEUE_MAX_SIZE) {
-                std::cerr << "Dropping packet: queue is full!" << std::endl;
+                if (logger_)
+                    logger_->e("Dropping packet: queue is full!");
                 rcv.pop();
             }
             rcv.emplace(std::move(pkt));
@@ -148,16 +157,15 @@ DhtRunner::run(const Config& config, Context&& context)
             dht_via_proxy_->setLocalCertificateStore(std::move(context.certificateStore));
     }
 
-    running = true;
     if (not config.threaded)
         return;
     dht_thread = std::thread([this]() {
-        while (running) {
+        while (running != State::Idle) {
             std::unique_lock<std::mutex> lk(dht_mtx);
             time_point wakeup = loop_();
 
             auto hasJobToDo = [this]() {
-                if (not running)
+                if (running == State::Idle)
                     return true;
                 {
                     std::lock_guard<std::mutex> lck(sock_mtx);
@@ -182,11 +190,16 @@ DhtRunner::run(const Config& config, Context&& context)
     });
 
     if (config.peer_discovery or config.peer_publish) {
+#ifdef OPENDHT_PEER_DISCOVERY
         peerDiscovery_ = context.peerDiscovery ?
             std::move(context.peerDiscovery) :
             std::make_shared<PeerDiscovery>();
+#else
+        std::cerr << "Peer discovery requested but OpenDHT built without peer discovery support." << std::endl;
+#endif
     }
 
+#ifdef OPENDHT_PEER_DISCOVERY
     auto netId = config.dht_config.node_config.network;
     if (config.peer_discovery) {
         peerDiscovery_->startDiscovery<NodeInsertionPack>(PEER_DISCOVERY_DHT_SERVICE, [this, netId](NodeInsertionPack&& v, SockAddr&& addr){
@@ -215,40 +228,91 @@ DhtRunner::run(const Config& config, Context&& context)
             peerDiscovery_->startPublish(AF_INET6, PEER_DISCOVERY_DHT_SERVICE, sbuf_node);
         }
     }
+#endif
 }
 
 void
 DhtRunner::shutdown(ShutdownCallback cb) {
-    if (not running) {
-        cb();
+    auto expected = State::Running;
+    if (not running.compare_exchange_strong(expected, State::Stopping)) {
+        if (expected == State::Stopping and ongoing_ops) {
+            std::lock_guard<std::mutex> lck(storage_mtx);
+            shutdownCallbacks_.emplace_back(std::move(cb));
+        }
+        else if (cb) cb();
         return;
     }
+    if (logger_)
+        logger_->d("[runner %p] state changed to Stopping, %zu ongoing ops", this, ongoing_ops.load());
     std::lock_guard<std::mutex> lck(storage_mtx);
+    ongoing_ops++;
+    shutdownCallbacks_.emplace_back(std::move(cb));
     pending_ops_prio.emplace([=](SecureDht&) mutable {
+        auto onShutdown = [this]{ opEnded(); };
 #ifdef OPENDHT_PROXY_CLIENT
         if (dht_via_proxy_)
-            dht_via_proxy_->shutdown(cb);
+            dht_via_proxy_->shutdown(onShutdown);
 #endif
         if (dht_)
-            dht_->shutdown(cb);
+            dht_->shutdown(onShutdown);
     });
     cv.notify_all();
 }
 
+void
+DhtRunner::opEnded() {
+    if (--ongoing_ops == 0)
+        checkShutdown();
+}
+
+DoneCallback
+DhtRunner::bindOpDoneCallback(DoneCallback&& cb) {
+    return [this, cb = std::move(cb)](bool ok, const std::vector<std::shared_ptr<Node>>& nodes){
+        if (cb) cb(ok, nodes);
+        opEnded();
+    };
+}
+
+DoneCallbackSimple
+DhtRunner::bindOpDoneCallback(DoneCallbackSimple&& cb) {
+    return [this, cb = std::move(cb)](bool ok){
+        if (cb) cb(ok);
+        opEnded();
+    };
+}
+
+bool
+DhtRunner::checkShutdown() {
+    if (running != State::Stopping or ongoing_ops)
+        return false;
+    decltype(shutdownCallbacks_) cbs;
+    {
+        std::lock_guard<std::mutex> lck(storage_mtx);
+        cbs = std::move(shutdownCallbacks_);
+    }
+    for (auto& cb : cbs)
+        if (cb) cb();
+    return true;
+}
+
 void
 DhtRunner::join()
 {
-    if (peerDiscovery_)
-        peerDiscovery_->stop();
-
     {
         std::lock_guard<std::mutex> lck(dht_mtx);
-        running = false;
+        if (running.exchange(State::Idle) == State::Idle)
+            return;
         cv.notify_all();
         bootstrap_cv.notify_all();
+#ifdef OPENDHT_PEER_DISCOVERY
+        if (peerDiscovery_)
+            peerDiscovery_->stop();
+#endif
         if (dht_)
             if (auto sock = dht_->getSocket())
                 sock->stop();
+        if (logger_)
+            logger_->d("[runner %p] state changed to Idle", this);
     }
 
     if (dht_thread.joinable())
@@ -257,14 +321,11 @@ DhtRunner::join()
     if (bootstrap_thread.joinable())
         bootstrap_thread.join();
 
-    if (peerDiscovery_) {
-        peerDiscovery_->join();
-    }
-
     {
         std::lock_guard<std::mutex> lck(storage_mtx);
         pending_ops = decltype(pending_ops)();
         pending_ops_prio = decltype(pending_ops_prio)();
+        ongoing_ops = 0;
     }
     {
         std::lock_guard<std::mutex> lck(dht_mtx);
@@ -283,6 +344,15 @@ DhtRunner::getBound(sa_family_t af) const {
     return SockAddr{};
 }
 
+in_port_t
+DhtRunner::getBoundPort(sa_family_t af) const {
+    std::lock_guard<std::mutex> lck(dht_mtx);
+    if (dht_)
+        if (auto sock = dht_->getSocket())
+            return sock->getPort(af);
+    return 0;
+}
+
 void
 DhtRunner::dumpTables() const
 {
@@ -406,11 +476,14 @@ DhtRunner::getNodesStats(sa_family_t af) const
 NodeInfo
 DhtRunner::getNodeInfo() const {
     std::lock_guard<std::mutex> lck(dht_mtx);
-    NodeInfo info;
-    info.id = getId();
-    info.node_id = getNodeId();
-    info.ipv4 = dht_->getNodesStats(AF_INET);
-    info.ipv6 = dht_->getNodesStats(AF_INET6);
+    NodeInfo info {};
+    if (auto dht = activeDht()) {
+        info.id = dht->getId();
+        info.node_id = dht->getNodeId();
+        info.ipv4 = dht->getNodesStats(AF_INET);
+        info.ipv6 = dht->getNodesStats(AF_INET6);
+    }
+    info.ongoing_ops = ongoing_ops;
     return info;
 }
 
@@ -563,12 +636,15 @@ DhtRunner::loop_()
 void
 DhtRunner::get(InfoHash hash, GetCallback vcb, DoneCallback dcb, Value::Filter f, Where w)
 {
-    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
-        pending_ops.emplace([=](SecureDht& dht) mutable {
-            dht.get(hash, std::move(vcb), std::move(dcb), std::move(f), std::move(w));
-        });
+    if (running != State::Running) {
+        if (dcb) dcb(false, {});
+        return;
     }
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    ongoing_ops++;
+    pending_ops.emplace([=](SecureDht& dht) mutable {
+        dht.get(hash, std::move(vcb), bindOpDoneCallback(std::move(dcb)), std::move(f), std::move(w));
+    });
     cv.notify_all();
 }
 
@@ -579,12 +655,15 @@ DhtRunner::get(const std::string& key, GetCallback vcb, DoneCallbackSimple dcb,
 }
 void
 DhtRunner::query(const InfoHash& hash, QueryCallback cb, DoneCallback done_cb, Query q) {
-    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
-        pending_ops.emplace([=](SecureDht& dht) mutable {
-            dht.query(hash, std::move(cb), std::move(done_cb), std::move(q));
-        });
+    if (running != State::Running) {
+        if (done_cb) done_cb(false, {});
+        return;
     }
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    ongoing_ops++;
+    pending_ops.emplace([=](SecureDht& dht) mutable {
+        dht.query(hash, std::move(cb), bindOpDoneCallback(std::move(done_cb)), std::move(q));
+    });
     cv.notify_all();
 }
 
@@ -592,32 +671,34 @@ std::future<size_t>
 DhtRunner::listen(InfoHash hash, ValueCallback vcb, Value::Filter f, Where w)
 {
     auto ret_token = std::make_shared<std::promise<size_t>>();
-    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
-        pending_ops.emplace([=](SecureDht& dht) mutable {
-#ifdef OPENDHT_PROXY_CLIENT
-            auto tokenbGlobal = listener_token_++;
-            auto& listener = listeners_[tokenbGlobal];
-            listener.hash = hash;
-            listener.f = std::move(f);
-            listener.w = std::move(w);
-            listener.gcb = [hash,vcb,tokenbGlobal,this](const std::vector<Sp<Value>>& vals, bool expired) {
-                if (not vcb(vals, expired)) {
-                    cancelListen(hash, tokenbGlobal);
-                    return false;
-                }
-                return true;
-            };
-            if (auto token = dht.listen(hash, listener.gcb, listener.f, listener.w)) {
-                if (use_proxy)  listener.tokenProxyDht = token;
-                else            listener.tokenClassicDht = token;
-            }
-            ret_token->set_value(tokenbGlobal);
-#else
-            ret_token->set_value(dht.listen(hash, std::move(vcb), std::move(f), std::move(w)));
-#endif
-        });
+    if (running != State::Running) {
+        ret_token->set_value(0);
+        return ret_token->get_future();
     }
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    pending_ops.emplace([=](SecureDht& dht) mutable {
+#ifdef OPENDHT_PROXY_CLIENT
+        auto tokenbGlobal = listener_token_++;
+        auto& listener = listeners_[tokenbGlobal];
+        listener.hash = hash;
+        listener.f = std::move(f);
+        listener.w = std::move(w);
+        listener.gcb = [hash,vcb,tokenbGlobal,this](const std::vector<Sp<Value>>& vals, bool expired) {
+            if (not vcb(vals, expired)) {
+                cancelListen(hash, tokenbGlobal);
+                return false;
+            }
+            return true;
+        };
+        if (auto token = dht.listen(hash, listener.gcb, listener.f, listener.w)) {
+            if (use_proxy)  listener.tokenProxyDht = token;
+            else            listener.tokenClassicDht = token;
+        }
+        ret_token->set_value(tokenbGlobal);
+#else
+        ret_token->set_value(dht.listen(hash, std::move(vcb), std::move(f), std::move(w)));
+#endif
+    });
     cv.notify_all();
     return ret_token->get_future();
 }
@@ -631,73 +712,77 @@ DhtRunner::listen(const std::string& key, GetCallback vcb, Value::Filter f, Wher
 void
 DhtRunner::cancelListen(InfoHash h, size_t token)
 {
-    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
+    std::lock_guard<std::mutex> lck(storage_mtx);
 #ifdef OPENDHT_PROXY_CLIENT
-        pending_ops.emplace([=](SecureDht&) {
-            auto it = listeners_.find(token);
-            if (it == listeners_.end()) return;
-            if (it->second.tokenClassicDht)
-                dht_->cancelListen(h, it->second.tokenClassicDht);
-            if (it->second.tokenProxyDht and dht_via_proxy_)
-                dht_via_proxy_->cancelListen(h, it->second.tokenProxyDht);
-            listeners_.erase(it);
-        });
+    pending_ops.emplace([=](SecureDht&) {
+        auto it = listeners_.find(token);
+        if (it == listeners_.end()) return;
+        if (it->second.tokenClassicDht)
+            dht_->cancelListen(h, it->second.tokenClassicDht);
+        if (it->second.tokenProxyDht and dht_via_proxy_)
+            dht_via_proxy_->cancelListen(h, it->second.tokenProxyDht);
+        listeners_.erase(it);
+    });
 #else
-        pending_ops.emplace([=](SecureDht& dht) {
-            dht.cancelListen(h, token);
-        });
+    pending_ops.emplace([=](SecureDht& dht) {
+        dht.cancelListen(h, token);
+    });
 #endif // OPENDHT_PROXY_CLIENT
-    }
     cv.notify_all();
 }
 
 void
 DhtRunner::cancelListen(InfoHash h, std::shared_future<size_t> ftoken)
 {
-    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
+    std::lock_guard<std::mutex> lck(storage_mtx);
 #ifdef OPENDHT_PROXY_CLIENT
-        pending_ops.emplace([=](SecureDht&) {
-            auto it = listeners_.find(ftoken.get());
-            if (it == listeners_.end()) return;
-            if (it->second.tokenClassicDht)
-                dht_->cancelListen(h, it->second.tokenClassicDht);
-            if (it->second.tokenProxyDht and dht_via_proxy_)
-                dht_via_proxy_->cancelListen(h, it->second.tokenProxyDht);
-            listeners_.erase(it);
-        });
+    pending_ops.emplace([=](SecureDht&) {
+        auto it = listeners_.find(ftoken.get());
+        if (it == listeners_.end()) return;
+        if (it->second.tokenClassicDht)
+            dht_->cancelListen(h, it->second.tokenClassicDht);
+        if (it->second.tokenProxyDht and dht_via_proxy_)
+            dht_via_proxy_->cancelListen(h, it->second.tokenProxyDht);
+        listeners_.erase(it);
+    });
 #else
-        pending_ops.emplace([=](SecureDht& dht) {
-            dht.cancelListen(h, ftoken.get());
-        });
+    pending_ops.emplace([=](SecureDht& dht) {
+        dht.cancelListen(h, ftoken.get());
+    });
 #endif // OPENDHT_PROXY_CLIENT
-    }
     cv.notify_all();
 }
 
 void
 DhtRunner::put(InfoHash hash, Value&& value, DoneCallback cb, time_point created, bool permanent)
 {
-    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
-        auto sv = std::make_shared<Value>(std::move(value));
-        pending_ops.emplace([=](SecureDht& dht) {
-            dht.put(hash, sv, cb, created, permanent);
-        });
+    if (running != State::Running) {
+        if (cb) cb(false, {});
+        return;
     }
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    ongoing_ops++;
+    pending_ops.emplace([=,
+        cb = std::move(cb),
+        sv = std::make_shared<Value>(std::move(value))
+    ] (SecureDht& dht) mutable {
+        dht.put(hash, sv, bindOpDoneCallback(std::move(cb)), created, permanent);
+    });
     cv.notify_all();
 }
 
 void
 DhtRunner::put(InfoHash hash, std::shared_ptr<Value> value, DoneCallback cb, time_point created, bool permanent)
 {
-    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
-        pending_ops.emplace([=](SecureDht& dht) {
-            dht.put(hash, value, cb, created, permanent);
-        });
+    if (running != State::Running) {
+        if (cb) cb(false, {});
+        return;
     }
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    ongoing_ops++;
+    pending_ops.emplace([=, cb = std::move(cb)](SecureDht& dht) mutable {
+        dht.put(hash, value, bindOpDoneCallback(std::move(cb)), created, permanent);
+    });
     cv.notify_all();
 }
 
@@ -708,63 +793,83 @@ DhtRunner::put(const std::string& key, Value&& value, DoneCallbackSimple cb, tim
 }
 
 void
-DhtRunner::cancelPut(const InfoHash& h , const Value::Id& id)
+DhtRunner::cancelPut(const InfoHash& h, Value::Id id)
 {
-    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
-        pending_ops.emplace([=](SecureDht& dht) {
-            dht.cancelPut(h, id);
-        });
-    }
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    pending_ops.emplace([=](SecureDht& dht) {
+        dht.cancelPut(h, id);
+    });
     cv.notify_all();
 }
 
 void
-DhtRunner::putSigned(InfoHash hash, std::shared_ptr<Value> value, DoneCallback cb)
+DhtRunner::cancelPut(const InfoHash& h, const std::shared_ptr<Value>& value)
 {
-    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
-        pending_ops.emplace([=](SecureDht& dht) {
-            dht.putSigned(hash, value, cb);
-        });
-    }
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    pending_ops.emplace([=](SecureDht& dht) {
+        dht.cancelPut(h, value->id);
+    });
     cv.notify_all();
 }
 
 void
-DhtRunner::putSigned(InfoHash hash, Value&& value, DoneCallback cb)
+DhtRunner::putSigned(InfoHash hash, std::shared_ptr<Value> value, DoneCallback cb, bool permanent)
 {
-    putSigned(hash, std::make_shared<Value>(std::move(value)), std::move(cb));
-}
-
-void
-DhtRunner::putSigned(const std::string& key, Value&& value, DoneCallbackSimple cb)
-{
-    putSigned(InfoHash::get(key), std::forward<Value>(value), std::move(cb));
-}
-
-void
-DhtRunner::putEncrypted(InfoHash hash, InfoHash to, std::shared_ptr<Value> value, DoneCallback cb)
-{
-    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
-        pending_ops.emplace([=](SecureDht& dht) {
-            dht.putEncrypted(hash, to, value, cb);
-        });
+    if (running != State::Running) {
+        if (cb) cb(false, {});
+        return;
     }
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    ongoing_ops++;
+    pending_ops.emplace([=,
+        cb = std::move(cb),
+        value = std::move(value)
+    ](SecureDht& dht) mutable {
+        dht.putSigned(hash, value, bindOpDoneCallback(std::move(cb)), permanent);
+    });
     cv.notify_all();
 }
 
 void
-DhtRunner::putEncrypted(InfoHash hash, InfoHash to, Value&& value, DoneCallback cb)
+DhtRunner::putSigned(InfoHash hash, Value&& value, DoneCallback cb, bool permanent)
 {
-    putEncrypted(hash, to, std::make_shared<Value>(std::move(value)), std::move(cb));
+    putSigned(hash, std::make_shared<Value>(std::move(value)), std::move(cb), permanent);
 }
 
 void
-DhtRunner::putEncrypted(const std::string& key, InfoHash to, Value&& value, DoneCallback cb)
+DhtRunner::putSigned(const std::string& key, Value&& value, DoneCallbackSimple cb, bool permanent)
 {
-    putEncrypted(InfoHash::get(key), to, std::forward<Value>(value), std::move(cb));
+    putSigned(InfoHash::get(key), std::forward<Value>(value), std::move(cb), permanent);
+}
+
+void
+DhtRunner::putEncrypted(InfoHash hash, InfoHash to, std::shared_ptr<Value> value, DoneCallback cb, bool permanent)
+{
+    if (running != State::Running) {
+        if (cb) cb(false, {});
+        return;
+    }
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    ongoing_ops++;
+    pending_ops.emplace([=,
+        cb = std::move(cb),
+        value = std::move(value)
+    ] (SecureDht& dht) mutable {
+        dht.putEncrypted(hash, to, value, bindOpDoneCallback(std::move(cb)), permanent);
+    });
+    cv.notify_all();
+}
+
+void
+DhtRunner::putEncrypted(InfoHash hash, InfoHash to, Value&& value, DoneCallback cb, bool permanent)
+{
+    putEncrypted(hash, to, std::make_shared<Value>(std::move(value)), std::move(cb), permanent);
+}
+
+void
+DhtRunner::putEncrypted(const std::string& key, InfoHash to, Value&& value, DoneCallback cb, bool permanent)
+{
+    putEncrypted(InfoHash::get(key), to, std::forward<Value>(value), std::move(cb), permanent);
 }
 
 void
@@ -796,7 +901,7 @@ DhtRunner::tryBootstrapContinuously()
                     ++ping_count;
                     try {
                         bootstrap(SockAddr::resolve(it->first, it->second), [&](bool) {
-                            if (not running)
+                            if (running != State::Running)
                                 return;
                             {
                                 std::unique_lock<std::mutex> blck(mtx);
@@ -810,15 +915,15 @@ DhtRunner::tryBootstrapContinuously()
                     }
                 }
                 // wait at least until the next BOOTSTRAP_PERIOD
-                bootstrap_cv.wait_until(blck, next, [&]() { return not running; });
+                bootstrap_cv.wait_until(blck, next, [&]() { return running != State::Running; });
                 // wait for bootstrap requests to end.
-                if (running)
-                   bootstrap_cv.wait(blck, [&]() { return not running or ping_count == 0; });
+                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 and
+                bootstraping = running == State::Running and
                                status4 == NodeStatus::Disconnected and
                                status6 == NodeStatus::Disconnected;
             }
@@ -855,19 +960,28 @@ DhtRunner::clearBootstrap()
 void
 DhtRunner::bootstrap(std::vector<SockAddr> nodes, DoneCallbackSimple&& cb)
 {
+    if (running != State::Running) {
+        cb(false);
+        return;
+    }
     std::lock_guard<std::mutex> lck(storage_mtx);
-    pending_ops_prio.emplace([=](SecureDht& dht) mutable {
+    ongoing_ops++;
+    pending_ops_prio.emplace([
+        cb = bindOpDoneCallback(std::move(cb)),
+        nodes = std::move(nodes)
+    ] (SecureDht& dht) mutable {
         auto rem = cb ? std::make_shared<std::pair<size_t, bool>>(nodes.size(), false) : nullptr;
         for (auto& node : nodes) {
             if (node.getPort() == 0)
                 node.setPort(net::DHT_DEFAULT_PORT);
-            dht.pingNode(std::move(node), cb ? [rem,cb](bool ok) {
+            dht.pingNode(std::move(node), [rem,cb](bool ok) {
                 auto& r = *rem;
                 r.first--;
                 r.second |= ok;
-                if (not r.first)
+                if (r.first == 0) {
                     cb(r.second);
-            } : DoneCallbackSimple{});
+                }
+            });
         }
     });
     cv.notify_all();
@@ -876,8 +990,13 @@ DhtRunner::bootstrap(std::vector<SockAddr> nodes, DoneCallbackSimple&& cb)
 void
 DhtRunner::bootstrap(const SockAddr& addr, DoneCallbackSimple&& cb)
 {
+    if (running != State::Running) {
+        if (cb) cb(false);
+        return;
+    }
     std::lock_guard<std::mutex> lck(storage_mtx);
-    pending_ops_prio.emplace([addr, cb](SecureDht& dht) mutable {
+    ongoing_ops++;
+    pending_ops_prio.emplace([addr, cb = bindOpDoneCallback(std::move(cb))](SecureDht& dht) mutable {
         dht.pingNode(std::move(addr), std::move(cb));
     });
     cv.notify_all();
@@ -886,48 +1005,52 @@ DhtRunner::bootstrap(const SockAddr& addr, DoneCallbackSimple&& cb)
 void
 DhtRunner::bootstrap(const InfoHash& id, const SockAddr& address)
 {
-    {
-        std::unique_lock<std::mutex> lck(storage_mtx);
-        pending_ops_prio.emplace([id, address](SecureDht& dht) mutable {
-            dht.insertNode(id, address);
-        });
-    }
+    if (running != State::Running)
+        return;
+    std::unique_lock<std::mutex> lck(storage_mtx);
+    pending_ops_prio.emplace([id, address](SecureDht& dht) mutable {
+        dht.insertNode(id, address);
+    });
     cv.notify_all();
 }
 
 void
 DhtRunner::bootstrap(const std::vector<NodeExport>& nodes)
 {
-    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
-        pending_ops_prio.emplace([=](SecureDht& dht) {
-            for (auto& node : nodes)
-                dht.insertNode(node);
-        });
-    }
+    if (running != State::Running)
+        return;
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    pending_ops_prio.emplace([=](SecureDht& dht) {
+        for (auto& node : nodes)
+            dht.insertNode(node);
+    });
     cv.notify_all();
 }
 
 void
 DhtRunner::connectivityChanged()
 {
-    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
-        pending_ops_prio.emplace([=](SecureDht& dht) {
-            dht.connectivityChanged();
-        });
-    }
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    pending_ops_prio.emplace([=](SecureDht& dht) {
+        dht.connectivityChanged();
+    });
     cv.notify_all();
 }
 
 void
-DhtRunner::findCertificate(InfoHash hash, std::function<void(const std::shared_ptr<crypto::Certificate>)> cb) {
-    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
-        pending_ops.emplace([=](SecureDht& dht) {
-            dht.findCertificate(hash, cb);
-        });
+DhtRunner::findCertificate(InfoHash hash, std::function<void(const Sp<crypto::Certificate>&)> cb) {
+    if (running != State::Running) {
+        cb({});
+        return;
     }
+    std::lock_guard<std::mutex> lck(storage_mtx);
+    ongoing_ops++;
+    pending_ops.emplace([this, hash, cb = std::move(cb)] (SecureDht& dht) {
+        dht.findCertificate(hash, [this, cb = std::move(cb)](const Sp<crypto::Certificate>& crt){
+            cb(crt);
+            opEnded();
+        });
+    });
     cv.notify_all();
 }
 

src/log.cpp

@@ -56,9 +56,9 @@ printLog(std::ostream& s, char const *m, va_list args) {
     s << std::endl;
 }
 
-std::unique_ptr<Logger>
+std::shared_ptr<Logger>
 getStdLogger() {
-    return std::unique_ptr<Logger>(new Logger(
+    return std::make_shared<Logger>(
         [](char const *m, va_list args) {
             std::cerr << red;
             printLog(std::cerr, m, args);
@@ -70,22 +70,22 @@ getStdLogger() {
             std::cout << def;
         },
         [](char const *m, va_list args) { printLog(std::cout, m, args); }
-    ));
+    );
 }
 
-std::unique_ptr<Logger>
+std::shared_ptr<Logger>
 getFileLogger(const std::string &path) {
     auto logfile = std::make_shared<std::ofstream>();
     logfile->open(path, std::ios::out);
 
-    return std::unique_ptr<Logger>(new Logger(
+    return std::make_shared<Logger>(
         [=](char const *m, va_list args) { printLog(*logfile, m, args); },
         [=](char const *m, va_list args) { printLog(*logfile, m, args); },
         [=](char const *m, va_list args) { printLog(*logfile, m, args); }
-    ));
+    );
 }
 
-std::unique_ptr<Logger>
+std::shared_ptr<Logger>
 getSyslogLogger(const char* name) {
 #ifndef _WIN32
     struct Syslog {
@@ -103,13 +103,13 @@ getSyslogLogger(const char* name) {
         logfile = std::make_shared<Syslog>(name);
         opened_logfile = logfile;
     }
-    return std::unique_ptr<Logger>(new Logger(
+    return std::make_shared<Logger>(
         [logfile](char const *m, va_list args) { vsyslog(LOG_ERR, m, args); },
         [logfile](char const *m, va_list args) { vsyslog(LOG_WARNING, m, args); },
         [logfile](char const *m, va_list args) { vsyslog(LOG_INFO, m, args); }
-    ));
+    );
 #else
-    return std::unique_ptr<Logger>(new Logger());
+    return std::make_shared<Logger>();
 #endif
 }
 

src/network_engine.cpp

@@ -41,7 +41,6 @@ constexpr std::chrono::seconds NetworkEngine::RX_MAX_PACKET_TIME;
 constexpr std::chrono::seconds NetworkEngine::RX_TIMEOUT;
 
 const std::string NetworkEngine::my_v {"RNG1"};
-constexpr size_t NetworkEngine::MAX_REQUESTS_PER_SEC;
 
 static constexpr uint8_t v4prefix[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF, 0, 0, 0, 0};
 
@@ -100,10 +99,10 @@ RequestAnswer::RequestAnswer(ParsedMessage&& msg)
 {}
 
 NetworkEngine::NetworkEngine(Logger& log, Scheduler& scheduler, std::unique_ptr<DatagramSocket>&& sock)
-    : myid(zeroes), dht_socket(std::move(sock)), DHT_LOG(log), scheduler(scheduler)
+    : myid(zeroes), dht_socket(std::move(sock)), DHT_LOG(log), rate_limiter((size_t)-1), scheduler(scheduler)
 {}
 
-NetworkEngine::NetworkEngine(InfoHash& myid, NetId net, std::unique_ptr<DatagramSocket>&& sock, Logger& log, Scheduler& scheduler,
+NetworkEngine::NetworkEngine(InfoHash& myid, NetworkConfig c, std::unique_ptr<DatagramSocket>&& sock, Logger& log, Scheduler& scheduler,
         decltype(NetworkEngine::onError)&& onError,
         decltype(NetworkEngine::onNewNode)&& onNewNode,
         decltype(NetworkEngine::onReportedAddr)&& onReportedAddr,
@@ -122,7 +121,9 @@ NetworkEngine::NetworkEngine(InfoHash& myid, NetId net, std::unique_ptr<Datagram
     onListen(std::move(onListen)),
     onAnnounce(std::move(onAnnounce)),
     onRefresh(std::move(onRefresh)),
-    myid(myid), network(net), dht_socket(std::move(sock)), DHT_LOG(log), scheduler(scheduler)
+    myid(myid), config(c), dht_socket(std::move(sock)), DHT_LOG(log),
+    rate_limiter(config.max_req_per_sec),
+    scheduler(scheduler)
 {}
 
 NetworkEngine::~NetworkEngine() {
@@ -148,7 +149,7 @@ NetworkEngine::tellListenerRefreshed(Sp<Node> n, Tid socket_id, const InfoHash&,
 {
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(4+(network?1:0));
+    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));
@@ -165,8 +166,8 @@ NetworkEngine::tellListenerRefreshed(Sp<Node> n, Tid socket_id, const InfoHash&,
     pk.pack(KEY_TID); pk.pack(socket_id);
     pk.pack(KEY_Y); pk.pack(KEY_R);
     pk.pack(KEY_UA); pk.pack(my_v);
-    if (network) {
-        pk.pack(KEY_NETID); pk.pack(network);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
     // send response
@@ -178,7 +179,7 @@ NetworkEngine::tellListenerExpired(Sp<Node> n, Tid socket_id, const InfoHash&, c
 {
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(4+(network?1:0));
+    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));
@@ -195,8 +196,8 @@ NetworkEngine::tellListenerExpired(Sp<Node> n, Tid socket_id, const InfoHash&, c
     pk.pack(KEY_TID); pk.pack(socket_id);
     pk.pack(KEY_Y); pk.pack(KEY_R);
     pk.pack(KEY_UA); pk.pack(my_v);
-    if (network) {
-        pk.pack(KEY_NETID); pk.pack(network);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
     // send response
@@ -245,7 +246,7 @@ NetworkEngine::requestStep(Sp<Request> sreq)
     auto now = scheduler.time();
     auto& node = *req.node;
     if (req.isExpired(now)) {
-        DHT_LOG.d(node.id, "[node %s] expired !", node.toString().c_str());
+        // DHT_LOG.d(node.id, "[node %s] expired !", node.toString().c_str());
         node.setExpired();
         if (not node.id)
             requests.erase(req.tid);
@@ -300,7 +301,7 @@ NetworkEngine::rateLimit(const SockAddr& addr)
     const auto& now = scheduler.time();
 
     // occasional IP limiter maintenance (a few times every second at max rate)
-    if (limiter_maintenance++ == MAX_REQUESTS_PER_SEC/8) {
+    if (limiter_maintenance++ == config.max_peer_req_per_sec) {
         for (auto it = address_rate_limiter.begin(); it != address_rate_limiter.end();) {
             if (it->second.maintain(now) == 0)
                 address_rate_limiter.erase(it++);
@@ -311,7 +312,11 @@ NetworkEngine::rateLimit(const SockAddr& addr)
     }
 
     // invoke per IP, then global rate limiter
-    return address_rate_limiter[addr].limit(now) and rate_limiter.limit(now);
+    return (config.max_peer_req_per_sec < 0
+            or address_rate_limiter
+                .emplace(addr, config.max_peer_req_per_sec).first->second
+                .limit(now))
+            and rate_limiter.limit(now);
 }
 
 bool
@@ -380,8 +385,8 @@ NetworkEngine::processMessage(const uint8_t *buf, size_t buflen, SockAddr f)
         return;
     }
 
-    if (msg->network != network) {
-        DHT_LOG.d("Received message from other network %u", msg->network);
+    if (msg->network != config.network) {
+        DHT_LOG.d("Received message from other config.network %u", msg->network);
         return;
     }
 
@@ -476,7 +481,8 @@ NetworkEngine::process(std::unique_ptr<ParsedMessage>&& msg, const SockAddr& fro
                 node->received(now, req);
                 if (not node->isClient())
                     onNewNode(node, 1);
-                throw DhtProtocolException {DhtProtocolException::UNKNOWN_TID, "Can't find transaction", msg->id};
+                DHT_LOG.d(node->id, "[node %s] can't find transaction with id %u", node->toString().c_str(), msg->tid);
+                return;
             }
         }
 
@@ -619,7 +625,7 @@ NetworkEngine::sendPing(Sp<Node> node, RequestCb&& on_done, RequestExpiredCb&& o
     TransId tid (node->getNewTid());
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(5+(network?1:0));
+    pk.pack_map(5+(config.network?1:0));
 
     pk.pack(KEY_A); pk.pack_map(1);
      pk.pack(KEY_REQ_ID); pk.pack(myid);
@@ -629,8 +635,8 @@ NetworkEngine::sendPing(Sp<Node> node, RequestCb&& on_done, RequestExpiredCb&& o
                               pk.pack_bin_body((const char*)tid.data(), tid.size());
     pk.pack(KEY_Y); pk.pack(KEY_Q);
     pk.pack(KEY_UA); pk.pack(my_v);
-    if (network) {
-        pk.pack(KEY_NETID); pk.pack(network);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
     auto req = std::make_shared<Request>(MessageType::Ping, tid.toInt(), node,
@@ -656,7 +662,7 @@ void
 NetworkEngine::sendPong(const SockAddr& addr, Tid tid) {
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(4+(network?1:0));
+    pk.pack_map(4+(config.network?1:0));
 
     pk.pack(KEY_R); pk.pack_map(2);
       pk.pack(KEY_REQ_ID); pk.pack(myid);
@@ -667,8 +673,8 @@ NetworkEngine::sendPong(const SockAddr& addr, Tid tid) {
                                pk.pack_bin_body((const char*)t.data(), t.size());
     pk.pack(KEY_Y); pk.pack(KEY_R);
     pk.pack(KEY_UA); pk.pack(my_v);
-    if (network) {
-        pk.pack(KEY_NETID); pk.pack(network);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
     send(addr, buffer.data(), buffer.size());
@@ -680,7 +686,7 @@ NetworkEngine::sendFindNode(Sp<Node> n, const InfoHash& target, want_t want,
     TransId tid (n->getNewTid());
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(5+(network?1:0));
+    pk.pack_map(5+(config.network?1:0));
 
     pk.pack(KEY_A); pk.pack_map(2 + (want>0?1:0));
       pk.pack(KEY_REQ_ID);     pk.pack(myid);
@@ -697,8 +703,8 @@ NetworkEngine::sendFindNode(Sp<Node> n, const InfoHash& target, want_t want,
                                pk.pack_bin_body((const char*)tid.data(), tid.size());
     pk.pack(KEY_Y); pk.pack(KEY_Q);
     pk.pack(KEY_UA); pk.pack(my_v);
-    if (network) {
-        pk.pack(KEY_NETID); pk.pack(network);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
     auto req = std::make_shared<Request>(MessageType::FindNode, tid.toInt(), n,
@@ -726,7 +732,7 @@ NetworkEngine::sendGetValues(Sp<Node> n, const InfoHash& info_hash, const Query&
     TransId tid (n->getNewTid());
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(5+(network?1:0));
+    pk.pack_map(5+(config.network?1:0));
 
     pk.pack(KEY_A);  pk.pack_map(2 +
                                 (query.where.getFilter() or not query.select.getSelection().empty() ? 1:0) +
@@ -746,8 +752,8 @@ NetworkEngine::sendGetValues(Sp<Node> n, const InfoHash& info_hash, const Query&
                                pk.pack_bin_body((const char*)tid.data(), tid.size());
     pk.pack(KEY_Y); pk.pack(KEY_Q);
     pk.pack(KEY_UA); pk.pack(my_v);
-    if (network) {
-        pk.pack(KEY_NETID); pk.pack(network);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
     auto req = std::make_shared<Request>(MessageType::GetValues, tid.toInt(), n,
@@ -861,9 +867,9 @@ NetworkEngine::sendValueParts(const TransId& tid, const std::vector<Blob>& svals
             end = std::min(start + MTU, v.size());
             buffer.clear();
             msgpack::packer<msgpack::sbuffer> pk(&buffer);
-            pk.pack_map(3+(network?1:0));
-            if (network) {
-                pk.pack(KEY_NETID); pk.pack(network);
+            pk.pack_map(3+(config.network?1:0));
+            if (config.network) {
+                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());
@@ -886,7 +892,7 @@ NetworkEngine::sendNodesValues(const SockAddr& addr, Tid tid, const Blob& nodes,
 {
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(4+(network?1:0));
+    pk.pack_map(4+(config.network?1:0));
 
     pk.pack(KEY_R);
     pk.pack_map(2 + (not st.empty()?1:0) + (nodes.size()>0?1:0) + (nodes6.size()>0?1:0) + (not token.empty()?1:0));
@@ -927,8 +933,8 @@ NetworkEngine::sendNodesValues(const SockAddr& addr, Tid tid, const Blob& nodes,
                       pk.pack_bin_body((const char*)t.data(), t.size());
     pk.pack(KEY_Y); pk.pack(KEY_R);
     pk.pack(KEY_UA); pk.pack(my_v);
-    if (network) {
-        pk.pack(KEY_NETID); pk.pack(network);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
     // send response
@@ -1017,7 +1023,7 @@ NetworkEngine::sendListen(Sp<Node> n,
 
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(5+(network?1:0));
+    pk.pack_map(5+(config.network?1:0));
 
     auto has_query = query.where.getFilter() or not query.select.getSelection().empty();
     pk.pack(KEY_A); pk.pack_map(4 + has_query);
@@ -1035,8 +1041,8 @@ NetworkEngine::sendListen(Sp<Node> n,
                                pk.pack_bin_body((const char*)tid.data(), tid.size());
     pk.pack(KEY_Y); pk.pack(KEY_Q);
     pk.pack(KEY_UA); pk.pack(my_v);
-    if (network) {
-        pk.pack(KEY_NETID); pk.pack(network);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
     auto req = std::make_shared<Request>(MessageType::Listen, tid.toInt(), n,
@@ -1060,7 +1066,7 @@ void
 NetworkEngine::sendListenConfirmation(const SockAddr& addr, Tid tid) {
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(4+(network?1:0));
+    pk.pack_map(4+(config.network?1:0));
 
     pk.pack(KEY_R); pk.pack_map(2);
       pk.pack(KEY_REQ_ID); pk.pack(myid);
@@ -1071,8 +1077,8 @@ NetworkEngine::sendListenConfirmation(const SockAddr& addr, Tid tid) {
                                pk.pack_bin_body((const char*)t.data(), t.size());
     pk.pack(KEY_Y); pk.pack(KEY_R);
     pk.pack(KEY_UA); pk.pack(my_v);
-    if (network) {
-        pk.pack(KEY_NETID); pk.pack(network);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
     send(addr, buffer.data(), buffer.size());
@@ -1090,7 +1096,7 @@ NetworkEngine::sendAnnounceValue(Sp<Node> n,
     TransId tid (n->getNewTid());
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(5+(network?1:0));
+    pk.pack_map(5+(config.network?1:0));
 
     pk.pack(KEY_A); pk.pack_map((created < scheduler.time() ? 5 : 4));
       pk.pack(KEY_REQ_ID);     pk.pack(myid);
@@ -1107,8 +1113,8 @@ NetworkEngine::sendAnnounceValue(Sp<Node> n,
                       pk.pack_bin_body((const char*)tid.data(), tid.size());
     pk.pack(KEY_Y);   pk.pack(KEY_Q);
     pk.pack(KEY_UA);  pk.pack(my_v);
-    if (network) {
-        pk.pack(KEY_NETID); pk.pack(network);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
     auto req = std::make_shared<Request>(MessageType::AnnounceValue, tid.toInt(), n,
@@ -1148,7 +1154,7 @@ NetworkEngine::sendRefreshValue(Sp<Node> n,
     TransId tid (n->getNewTid());
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(5+(network?1:0));
+    pk.pack_map(5+(config.network?1:0));
 
     pk.pack(KEY_A); pk.pack_map(4);
       pk.pack(KEY_REQ_ID);       pk.pack(myid);
@@ -1161,8 +1167,8 @@ NetworkEngine::sendRefreshValue(Sp<Node> n,
                                pk.pack_bin_body((const char*)tid.data(), tid.size());
     pk.pack(KEY_Y); pk.pack(KEY_Q);
     pk.pack(KEY_UA); pk.pack(my_v);
-    if (network) {
-        pk.pack(KEY_NETID); pk.pack(network);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
     auto req = std::make_shared<Request>(MessageType::Refresh, tid.toInt(), n,
@@ -1193,7 +1199,7 @@ void
 NetworkEngine::sendValueAnnounced(const SockAddr& addr, Tid tid, Value::Id vid) {
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
-    pk.pack_map(4+(network?1:0));
+    pk.pack_map(4+(config.network?1:0));
 
     pk.pack(KEY_R); pk.pack_map(3);
       pk.pack(KEY_REQ_ID);  pk.pack(myid);
@@ -1205,8 +1211,8 @@ NetworkEngine::sendValueAnnounced(const SockAddr& addr, Tid tid, Value::Id vid)
                                pk.pack_bin_body((const char*)t.data(), t.size());
     pk.pack(KEY_Y); pk.pack(KEY_R);
     pk.pack(KEY_UA); pk.pack(my_v);
-    if (network) {
-        pk.pack(KEY_NETID); pk.pack(network);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
     send(addr, buffer.data(), buffer.size());
@@ -1237,8 +1243,8 @@ NetworkEngine::sendError(const SockAddr& addr,
                                pk.pack_bin_body((const char*)t.data(), t.size());
     pk.pack(KEY_Y); pk.pack(KEY_E);
     pk.pack(KEY_UA); pk.pack(my_v);
-    if (network) {
-        pk.pack(KEY_NETID); pk.pack(network);
+    if (config.network) {
+        pk.pack(KEY_NETID); pk.pack(config.network);
     }
 
     send(addr, buffer.data(), buffer.size());

src/network_utils.cpp

@@ -26,6 +26,7 @@
 #define close(x) closesocket(x)
 #define write(s, b, f) send(s, b, (int)strlen(b), 0)
 #else
+#include <sys/select.h>
 #include <fcntl.h>
 #endif
 
@@ -112,11 +113,13 @@ UdpSocket::UdpSocket(in_port_t port, const Logger& l) : logger(l) {
     SockAddr bind6;
     bind6.setFamily(AF_INET6);
     bind6.setPort(port);
+    std::lock_guard<std::mutex> lk(lock);
     openSockets(bind4, bind6);
 }
 
 UdpSocket::UdpSocket(const SockAddr& bind4, const SockAddr& bind6, const Logger& l) : logger(l)
 {
+    std::lock_guard<std::mutex> lk(lock);
     openSockets(bind4, bind6);
 }
 
@@ -154,6 +157,7 @@ UdpSocket::sendTo(const SockAddr& dest, const uint8_t* data, size_t size, bool r
         int err = errno;
         logger.d("Can't send message to %s: %s", dest.toString().c_str(), strerror(err));
         if (err == EPIPE || err == ENOTCONN || err == ECONNRESET) {
+            std::lock_guard<std::mutex> lk(lock);
             auto bind4 = std::move(bound4), bind6 = std::move(bound6);
             openSockets(bind4, bind6);
             return sendTo(dest, data, size, false);
@@ -180,8 +184,8 @@ UdpSocket::openSockets(const SockAddr& bind4, const SockAddr& bind6)
     udpPipe(stopfds);
 #endif
     int stop_readfd = stopfds[0];
-    stopfd = stopfds[1];
 
+    stopfd = stopfds[1];
     s4 = -1;
     s6 = -1;
 
@@ -224,18 +228,18 @@ UdpSocket::openSockets(const SockAddr& bind4, const SockAddr& bind6)
     }
 
     running = true;
-    rcv_thread = std::thread([this, stop_readfd]() {
-        int selectFd = std::max({s4, s6, stop_readfd}) + 1;
+    rcv_thread = std::thread([this, stop_readfd, ls4=s4, ls6=s6]() mutable {
+        int selectFd = std::max({ls4, ls6, stop_readfd}) + 1;
         try {
             while (running) {
                 fd_set readfds;
 
                 FD_ZERO(&readfds);
                 FD_SET(stop_readfd, &readfds);
-                if(s4 >= 0)
-                    FD_SET(s4, &readfds);
-                if(s6 >= 0)
-                    FD_SET(s6, &readfds);
+                if(ls4 >= 0)
+                    FD_SET(ls4, &readfds);
+                if(ls6 >= 0)
+                    FD_SET(ls6, &readfds);
 
                 int rc = select(selectFd, &readfds, nullptr, nullptr, nullptr);
                 if (rc < 0) {
@@ -259,10 +263,10 @@ UdpSocket::openSockets(const SockAddr& bind4, const SockAddr& bind6)
                             break;
                         }
                     }
-                    else if (s4 >= 0 && FD_ISSET(s4, &readfds))
-                        rc = recvfrom(s4, (char*)buf.data(), buf.size(), 0, (sockaddr*)&from, &from_len);
-                    else if (s6 >= 0 && FD_ISSET(s6, &readfds))
-                        rc = recvfrom(s6, (char*)buf.data(), buf.size(), 0, (sockaddr*)&from, &from_len);
+                    else if (ls4 >= 0 && FD_ISSET(ls4, &readfds))
+                        rc = recvfrom(ls4, (char*)buf.data(), buf.size(), 0, (sockaddr*)&from, &from_len);
+                    else if (ls6 >= 0 && FD_ISSET(ls6, &readfds))
+                        rc = recvfrom(ls6, (char*)buf.data(), buf.size(), 0, (sockaddr*)&from, &from_len);
                     else
                         continue;
 
@@ -276,25 +280,28 @@ UdpSocket::openSockets(const SockAddr& bind4, const SockAddr& bind6)
                         logger.e("Error receiving packet: %s", strerror(errno));
                         int err = errno;
                         if (err == EPIPE || err == ENOTCONN || err == ECONNRESET) {
-                            if (s4 >= 0) {
-                                close(s4);
+                            std::lock_guard<std::mutex> lk(lock);
+                            if (ls4 >= 0) {
+                                close(ls4);
                                 try {
-                                    s4 = bindSocket(bound4, bound4);
+                                    ls4 = bindSocket(bound4, bound4);
                                 } catch (const DhtException& e) {
                                     logger.e("Can't bind inet socket: %s", e.what());
                                 }
                             }
-                            if (s6 >= 0) {
-                                close(s6);
+                            if (ls6 >= 0) {
+                                close(ls6);
                                 try {
-                                    s6 = bindSocket(bound6, bound6);
+                                    ls6 = bindSocket(bound6, bound6);
                                 } catch (const DhtException& e) {
                                     logger.e("Can't bind inet6 socket: %s", e.what());
                                 }
                             }
-                            if (s4 < 0 && s6 < 0)
+                            if (ls4 < 0 && ls6 < 0)
                                 break;
-                            selectFd = std::max({s4, s6, stop_readfd}) + 1;
+                            s4 = ls4;
+                            s6 = ls6;
+                            selectFd = std::max({ls4, ls6, stop_readfd}) + 1;
                         }
                     }
                 }
@@ -302,16 +309,17 @@ UdpSocket::openSockets(const SockAddr& bind4, const SockAddr& bind6)
         } catch (const std::exception& e) {
             logger.e("Error in UdpSocket rx thread: %s", e.what());
         }
-        if (s4 >= 0)
-            close(s4);
-        if (s6 >= 0)
-            close(s6);
+        if (ls4 >= 0)
+            close(ls4);
+        if (ls6 >= 0)
+            close(ls6);
+        if (stop_readfd != -1)
+            close(stop_readfd);
+        std::lock_guard<std::mutex> lk(lock);
         s4 = -1;
         s6 = -1;
         bound4 = {};
         bound6 = {};
-        if (stop_readfd != -1)
-            close(stop_readfd);
         if (stopfd != -1)
             close(stopfd);
         stopfd = -1;

src/peer_discovery.cpp

@@ -2,6 +2,7 @@
  *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
  *  Author(s) : Mingrui Zhang <mingrui.zhang@savoirfairelinux.com>
  *              Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
+ *              Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -21,402 +22,166 @@
 #include "network_utils.h"
 #include "utils.h"
 
-#ifdef _WIN32
-#include <Ws2tcpip.h> // needed for ip_mreq definition for multicast
-#include <Windows.h>
-#include <cstring>
-#if defined(_MSC_VER)
-#include <BaseTsd.h>
-typedef SSIZE_T ssize_t;
-#endif
-#define close(x) closesocket(x)
-#else
-#include <sys/types.h>
-#include <unistd.h>
-#endif
-#include <fcntl.h>
+#include <asio.hpp>
 
-#ifndef IPV6_JOIN_GROUP
-#define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP
-#endif
+using namespace std::chrono_literals;
 
 namespace dht {
 
 // Organization-local Scope multicast
-constexpr char MULTICAST_ADDRESS_IPV4[12] = "239.192.0.1";
-constexpr char MULTICAST_ADDRESS_IPV6[10] = "ff08::101";
+constexpr char MULTICAST_ADDRESS_IPV4[] = "239.192.0.1";
+constexpr char MULTICAST_ADDRESS_IPV6[] = "ff08::101";
 
 class PeerDiscovery::DomainPeerDiscovery
 {
 public:
-    DomainPeerDiscovery(sa_family_t domain, in_port_t port);
+    DomainPeerDiscovery(asio::ip::udp domain, in_port_t port, Sp<asio::io_context> ioContext = {}, Sp<Logger> logger = {});
     ~DomainPeerDiscovery();
 
-    /**
-     * startDiscovery - Keep Listening data from the sender until node is joinned or stop is called
-    */
     void startDiscovery(const std::string &type, ServiceDiscoveredCallback callback);
-
-    /**
-     * startPublish - Keeping sending data until node is joinned or stop is called - msgpack
-    */
     void startPublish(const std::string &type, const msgpack::sbuffer &pack_buf);
 
-    /**
-     * Thread Stopper
-    */
     void stop();
 
-    /**
-     * Remove possible callBack to discovery
-    */
     bool stopDiscovery(const std::string &type);
-
-    /**
-     * Remove different serivce message to send
-    */
     bool stopPublish(const std::string &type);
 
-    /**
-     * Configure the sockopt to be able to listen multicast group
-    */
-    static void joinMulticast(int sockfd, sa_family_t family);
-
-    /**
-     * Join the threads
-    */
-    void join() {
-        if(listening_.joinable()) listening_.join();
-        if(sending_.joinable()) sending_.join();
-    }
 private:
+    Sp<Logger> logger_;
     //dmtx_ for callbackmap_ and drunning_ (write)
     std::mutex dmtx_;
     //mtx_ for messages_ and lrunning (listen)
     std::mutex mtx_;
-    std::condition_variable cv_;
-    bool lrunning_ {false};
-    bool drunning_ {false};
-    sa_family_t domain_ {AF_UNSPEC};
-    int port_;
-    int sockFd_ {-1};
-    int stopWriteFd_ {-1};
+    std::shared_ptr<asio::io_context> ioContext_;
+    asio::ip::udp::socket sockFd_;
+    asio::ip::udp::endpoint sockAddrSend_;
+    asio::steady_timer publishTimer_;
 
-    SockAddr sockAddrSend_;
-
-    //Thread export to be joined
-    std::thread listening_;
-    std::thread sending_;
+    std::array<char, 64 * 1024> receiveBuf_;
+    asio::ip::udp::endpoint receiveFrom_;
 
     msgpack::sbuffer sbuf_;
     std::map<std::string, msgpack::sbuffer> messages_;
     std::map<std::string, ServiceDiscoveredCallback> callbackmap_;
+    bool lrunning_ {false};
+    bool drunning_ {false};
 
-    /**
-     * Multicast Socket Initialization, accept IPV4, IPV6
-    */
-    static int init(sa_family_t domain);
-
-    /**
-     * Receive messages
-    */
-    std::pair<SockAddr, msgpack::object_handle> recvFrom();
-
-    /**
-     * Listener pack thread loop
-    */
     void loopListener();
-
-    /**
-     * Listener Parameters Setup
-    */
-    void setupListener();
-
-    /**
-     * Sender Parameters Setup
-    */
-    void setupSender();
-    /**
-     * Sender Parameters Setup
-    */
     void reloadMessages();
 
     void stopDiscovery();
     void stopPublish();
+    void publish();
 };
 
-PeerDiscovery::DomainPeerDiscovery::DomainPeerDiscovery(sa_family_t domain, in_port_t port)
-    : domain_(domain), port_(port), sockFd_(init(domain))
+PeerDiscovery::DomainPeerDiscovery::DomainPeerDiscovery(asio::ip::udp domain, in_port_t port, Sp<asio::io_context> ioContext, Sp<Logger> logger)
+    : logger_(logger)
+    , ioContext_(ioContext)
+    , sockFd_(*ioContext_, domain)
+    , sockAddrSend_(asio::ip::address::from_string(domain.family() == AF_INET ? MULTICAST_ADDRESS_IPV4
+                                                                              : MULTICAST_ADDRESS_IPV6), port)
+    , publishTimer_(*ioContext)
 {
-    joinMulticast(sockFd_, domain);
-    setupListener();
-    setupSender();
+    sockFd_.set_option(asio::ip::multicast::join_group(sockAddrSend_.address()));
+    sockFd_.set_option(asio::ip::udp::socket::reuse_address(true));
+    sockFd_.bind({domain, port});
 }
 
 PeerDiscovery::DomainPeerDiscovery::~DomainPeerDiscovery()
 {
     stop();
-    join();
-    if (sockFd_ != -1)
-        close(sockFd_);
-
-#ifdef _WIN32
-    WSACleanup();
-#endif
-}
-
-int
-PeerDiscovery::DomainPeerDiscovery::init(sa_family_t domain)
-{
-#ifdef _WIN32
-    WSADATA wsaData;
-    if (WSAStartup(0x0101, &wsaData)) {
-        throw std::runtime_error(std::string("Can't initialize Winsock2 ") + strerror(errno));
-    }
-#endif
-
-    int sockfd = socket(domain, SOCK_DGRAM, 0);
-    if (sockfd < 0) {
-        throw std::runtime_error(std::string("Socket Creation Error: ") + strerror(errno));
-    }
-    net::setNonblocking(sockfd);
-    return sockfd;
-}
-
-void
-PeerDiscovery::DomainPeerDiscovery::setupListener()
-{
-    SockAddr sockAddrListen_;
-    sockAddrListen_.setFamily(domain_);
-    sockAddrListen_.setPort(port_);
-    sockAddrListen_.setAny();
-
-    unsigned int opt = 1;
-    if (setsockopt(sockFd_, SOL_SOCKET, SO_REUSEADDR, (char*)&opt, sizeof(opt)) < 0) {
-       std::cerr << "setsockopt SO_REUSEADDR failed: " << strerror(errno) << std::endl;
-    }
-#ifdef SO_REUSEPORT
-    if (setsockopt(sockFd_, SOL_SOCKET, SO_REUSEPORT, (char*)&opt, sizeof(opt)) < 0) {
-       std::cerr << "setsockopt SO_REUSEPORT failed: " << strerror(errno) << std::endl;
-    }
-#endif
-
-    // bind to receive address
-    if (bind(sockFd_, sockAddrListen_.get(), sockAddrListen_.getLength()) < 0){
-        throw std::runtime_error(std::string("Error binding socket: ") + strerror(errno));
-    }
-}
-
-void
-PeerDiscovery::DomainPeerDiscovery::joinMulticast(int sockfd, sa_family_t family)
-{
-    switch (family)
-    {
-    case AF_INET:{
-        ip_mreq config_ipv4;
-
-        //This option can be used to set the interface for sending outbound
-        //multicast datagrams from the sockets application.
-        config_ipv4.imr_interface.s_addr = htonl(INADDR_ANY);
-        if( setsockopt(sockfd, IPPROTO_IP, IP_MULTICAST_IF, (char*)&config_ipv4.imr_interface, sizeof( struct in_addr )) < 0 ) {
-            throw std::runtime_error(std::string("Bound Network Interface IPv4 Error: ") + strerror(errno));
-        }
-
-        //The IP_MULTICAST_TTL socket option allows the application to primarily
-        //limit the lifetime of the packet in the Internet and prevent it from circulating indefinitely
-        unsigned char ttl4 = 20;
-        if( setsockopt(sockfd, IPPROTO_IP, IP_MULTICAST_TTL, (char*)&ttl4, sizeof( ttl4 )) < 0 ) {
-            throw std::runtime_error(std::string("TTL Sockopt Error: ") + strerror(errno));
-        }
-
-        // config the listener to be interested in joining in the multicast group
-        config_ipv4.imr_multiaddr.s_addr = inet_addr(MULTICAST_ADDRESS_IPV4);
-        config_ipv4.imr_interface.s_addr = htonl(INADDR_ANY);
-        if (setsockopt(sockfd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char*)&config_ipv4, sizeof(config_ipv4)) < 0){
-            throw std::runtime_error(std::string(" Member Addition IPv4 Error: ") + strerror(errno));
-        }
-        break;
-    }
-    case AF_INET6: {
-        ipv6_mreq config_ipv6;
-
-        /* unsigned int outif = 0;
-        if (setsockopt(sockfd, IPPROTO_IPV6, IPV6_MULTICAST_IF, &outif, sizeof(outif)) < 0) {
-            std::cerr << "Can't assign multicast interface: " << strerror(errno) << std::endl;
-        } */
-
-        unsigned int ttl6 = 20;
-        if( setsockopt(sockfd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, (char*)&ttl6, sizeof( ttl6 )) < 0 ) {
-            throw std::runtime_error(std::string("Hop Count Set Error: ") + strerror(errno));
-        }
-
-        config_ipv6.ipv6mr_interface = 0;
-        inet_pton(AF_INET6, MULTICAST_ADDRESS_IPV6, &config_ipv6.ipv6mr_multiaddr);
-        if (setsockopt(sockfd, IPPROTO_IPV6, IPV6_JOIN_GROUP, (char*)&config_ipv6, sizeof(config_ipv6)) < 0){
-            throw std::runtime_error(std::string("Member Addition IPv6 Error: ") + strerror(errno));
-        }
-        break;
-    }
-    }
+    sockFd_.close();
 }
 
 void
 PeerDiscovery::DomainPeerDiscovery::startDiscovery(const std::string &type, ServiceDiscoveredCallback callback)
 {
-    std::unique_lock<std::mutex> lck(dmtx_);
+    std::lock_guard<std::mutex> lck(dmtx_);
     callbackmap_[type] = callback;
     if (not drunning_) {
-        if (listening_.joinable())
-            listening_.join();
         drunning_ = true;
-        listening_ = std::thread(&DomainPeerDiscovery::loopListener, this);
+        ioContext_->post(std::bind(&PeerDiscovery::DomainPeerDiscovery::loopListener, this));
     }
 }
 
-std::pair<SockAddr, msgpack::object_handle>
-PeerDiscovery::DomainPeerDiscovery::recvFrom()
-{
-    sockaddr_storage sa;
-    socklen_t sa_len = sizeof(sa);
-
-    std::array<uint8_t, 64 * 1024> buf;
-    ssize_t nbytes = recvfrom(
-        sockFd_,
-        (char*)buf.data(), buf.size(),
-        0,
-        (sockaddr*)&sa, &sa_len
-    );
-    if (nbytes < 0)
-        throw std::runtime_error(std::string("Error receiving packet: ") + strerror(errno));
-
-    return { SockAddr { sa, sa_len }, msgpack::unpack(reinterpret_cast<char*>(buf.data()), nbytes) };
-}
-
 void
 PeerDiscovery::DomainPeerDiscovery::loopListener()
 {
-    int stopfds_pipe[2];
-#ifndef _WIN32
-    if (pipe(stopfds_pipe) == -1)
-        throw std::runtime_error(std::string("Can't open pipe: ") + strerror(errno));
-#else
-    net::udpPipe(stopfds_pipe);
-#endif
-    int stop_readfd = stopfds_pipe[0];
-    stopWriteFd_ = stopfds_pipe[1];
-
-    while (true) {
-        {
-            std::lock_guard<std::mutex> lck(dmtx_);
-            if (not drunning_)
-                break;
+    std::lock_guard<std::mutex> lck(dmtx_);
+    if (not drunning_)
+        return;
+    sockFd_.async_receive_from(asio::buffer(receiveBuf_), receiveFrom_, [this](const asio::error_code& error, size_t bytes) {
+        if (error == asio::error::operation_aborted)
+            return;
+        if (error) {
+            if (logger_)
+                logger_->e("Error receiving message: %s", error.message().c_str());
         }
+        try {
+            auto rcv = msgpack::unpack(receiveBuf_.data(), bytes);
+            msgpack::object obj = rcv.get();
 
-        fd_set readfds;
-
-        FD_ZERO(&readfds);
-        FD_SET(stop_readfd, &readfds);
-        FD_SET(sockFd_, &readfds);
-
-        int data_coming = select(std::max(sockFd_, stop_readfd) + 1, &readfds, nullptr, nullptr, nullptr);
-
-        {
-            std::lock_guard<std::mutex> lck(dmtx_);
-            if (not drunning_)
-                break;
-        }
-
-        if (data_coming < 0) {
-            if(errno != EINTR) {
-                perror("Select Error");
-                std::this_thread::sleep_for( std::chrono::seconds(1) );
-            }
-        } else if (data_coming > 0) {
-            if (FD_ISSET(stop_readfd, &readfds)) {
-                std::array<uint8_t, 64 * 1024> buf;
-                recv(stop_readfd, (char*)buf.data(), buf.size(), 0);
-            }
-
-            try {
-                auto rcv = recvFrom();
-                msgpack::object obj = rcv.second.get();
-
-                if (obj.type != msgpack::type::MAP)
+            if (obj.type != msgpack::type::MAP)
+                throw msgpack::type_error{};
+            for (unsigned i = 0; i < obj.via.map.size; i++) {
+                auto& o = obj.via.map.ptr[i];
+                if (o.key.type != msgpack::type::STR)
                     continue;
-                for (unsigned i = 0; i < obj.via.map.size; i++) {
-                    auto& o = obj.via.map.ptr[i];
-                    if (o.key.type != msgpack::type::STR)
-                        continue;
-                    auto key = o.key.as<std::string>();
-                    ServiceDiscoveredCallback cb;
-                    {
-                        std::lock_guard<std::mutex> lck(dmtx_);
+                auto key = o.key.as<std::string>();
+                ServiceDiscoveredCallback cb;
+                {
+                    std::lock_guard<std::mutex> lck(dmtx_);
+                    if (drunning_) {
                         auto callback = callbackmap_.find(key);
                         if (callback != callbackmap_.end())
                             cb = callback->second;
-                    }
-                    if (cb)
-                        cb(std::move(o.val), std::move(rcv.first));
+                    } else
+                        return;
                 }
-            } catch (const std::exception& e) {
-                std::cerr << "Error receiving packet: " << e.what() << std::endl;
+                if (cb)
+                    cb(std::move(o.val), SockAddr{ receiveFrom_.data(), (socklen_t)receiveFrom_.size() });
             }
+        } catch (const std::exception& e) {
+            if (logger_)
+                logger_->e("Error receiving packet: %s", e.what());
         }
-    }
-    if (stop_readfd != -1)
-        close(stop_readfd);
-    if (stopWriteFd_ != -1) {
-        close(stopWriteFd_);
-        stopWriteFd_ = -1;
-    }
+        loopListener();
+    });
 }
 
 void
-PeerDiscovery::DomainPeerDiscovery::setupSender()
+PeerDiscovery::DomainPeerDiscovery::publish()
 {
-    // Setup sender address
-    sockAddrSend_.setFamily(domain_);
-    sockAddrSend_.setAddress(domain_ == AF_INET ? MULTICAST_ADDRESS_IPV4 : MULTICAST_ADDRESS_IPV6);
-    sockAddrSend_.setPort(port_);
+    std::lock_guard<std::mutex> lck(mtx_);
+    if (lrunning_) {
+        sockFd_.async_send_to(asio::buffer(sbuf_.data(), sbuf_.size()), sockAddrSend_, [logger=logger_](const asio::error_code& ec, size_t){
+            if (ec and ec != asio::error::operation_aborted) {
+                if (logger)
+                    logger->w("Error sending packet: %s", ec.message().c_str());
+            }
+        });
+        publishTimer_.expires_after(3s);
+        publishTimer_.async_wait(std::bind(&PeerDiscovery::DomainPeerDiscovery::publish, this));
+    }
 }
 
 void
 PeerDiscovery::DomainPeerDiscovery::startPublish(const std::string &type, const msgpack::sbuffer &pack_buf)
 {
-    //Set up New Sending pack
     msgpack::sbuffer pack_buf_c;
     pack_buf_c.write(pack_buf.data(),pack_buf.size());
 
-    std::unique_lock<std::mutex> lck(mtx_);
+    std::lock_guard<std::mutex> lck(mtx_);
     messages_[type] = std::move(pack_buf_c);
     reloadMessages();
     if (not lrunning_) {
-        if (sending_.joinable())
-            sending_.join();
         lrunning_ = true;
-        sending_ = std::thread([this](){
-            std::unique_lock<std::mutex> lck(mtx_);
-            while (lrunning_) {
-                ssize_t nbytes = sendto(
-                    sockFd_,
-                    sbuf_.data(),
-                    sbuf_.size(),
-                    0,
-                    sockAddrSend_.get(),
-                    sockAddrSend_.getLength()
-                );
-                if (nbytes < 0) {
-                    std::cerr << "Error sending packet: " << strerror(errno) << std::endl;
-                }
-                if (cv_.wait_for(lck,std::chrono::seconds(3),[&]{ return !lrunning_; }))
-                    break;
-            }
-        });
+        ioContext_->post(std::bind(&PeerDiscovery::DomainPeerDiscovery::publish, this));
     }
 }
 
 bool
-PeerDiscovery::DomainPeerDiscovery::stopDiscovery(const std::string &type)
+PeerDiscovery::DomainPeerDiscovery::stopDiscovery(const std::string& type)
 {
     std::lock_guard<std::mutex> lck(dmtx_);
     if (callbackmap_.erase(type) > 0) {
@@ -428,7 +193,7 @@ PeerDiscovery::DomainPeerDiscovery::stopDiscovery(const std::string &type)
 }
 
 bool
-PeerDiscovery::DomainPeerDiscovery::stopPublish(const std::string &type)
+PeerDiscovery::DomainPeerDiscovery::stopPublish(const std::string& type)
 {
     std::lock_guard<std::mutex> lck(mtx_);
     if (messages_.erase(type) > 0) {
@@ -444,20 +209,8 @@ PeerDiscovery::DomainPeerDiscovery::stopPublish(const std::string &type)
 void
 PeerDiscovery::DomainPeerDiscovery::stopDiscovery()
 {
-#ifdef _WIN32
-#define write(s, b, f) send((s), (b), (f), 0)
-#endif
-    if (drunning_) {
+    if (drunning_)
         drunning_ = false;
-        if (stopWriteFd_ != -1) {
-            if (write(stopWriteFd_, "\0", 1) == -1) {
-                std::cerr << "Can't send stop message: " << strerror(errno) << std::endl;
-            }
-        }
-    }
-#ifdef _WIN32
-#undef write
-#endif
 }
 
 void
@@ -465,7 +218,7 @@ PeerDiscovery::DomainPeerDiscovery::stopPublish()
 {
     if (lrunning_) {
         lrunning_ = false;
-        cv_.notify_all();
+        publishTimer_.cancel();
     }
 }
 
@@ -473,11 +226,11 @@ void
 PeerDiscovery::DomainPeerDiscovery::stop()
 {
     {
-        std::unique_lock<std::mutex> lck(dmtx_);
+        std::lock_guard<std::mutex> lck(dmtx_);
         stopDiscovery();
     }
     {
-        std::unique_lock<std::mutex> lck(mtx_);
+        std::lock_guard<std::mutex> lck(mtx_);
         stopPublish();
     }
 }
@@ -494,38 +247,65 @@ PeerDiscovery::DomainPeerDiscovery::reloadMessages()
     }
 }
 
-PeerDiscovery::PeerDiscovery(in_port_t port)
+PeerDiscovery::PeerDiscovery(in_port_t port, Sp<asio::io_context> ioContext, Sp<Logger> logger)
 {
+    if (not ioContext) {
+        ioContext = std::make_shared<asio::io_context>();
+        ioContext_ = ioContext;
+        ioRunnner_ = std::thread([logger, ioContext] {
+            try {
+                if (logger)
+                    logger->d("[peerdiscovery] starting io_context");
+                auto work = asio::make_work_guard(*ioContext);
+                ioContext->run();
+                if (logger)
+                    logger->d("[peerdiscovery] io_context stopped");
+            }
+            catch (const std::exception& ex){
+                if (logger)
+                    logger->e("[peerdiscovery] run error: %s", ex.what());
+            }
+        });
+    }
+
     try {
-        peerDiscovery4_.reset(new DomainPeerDiscovery(AF_INET, port));
+        peerDiscovery4_.reset(new DomainPeerDiscovery(asio::ip::udp::v4(), port, ioContext, logger));
     } catch(const std::exception& e){
-        std::cerr << "Can't start peer discovery (IPv4): " << e.what() << std::endl;
+        if (logger)
+            logger->e("[peerdiscovery] can't start IPv4: %s", e.what());
     }
     try {
-        peerDiscovery6_.reset(new DomainPeerDiscovery(AF_INET6, port));
+        peerDiscovery6_.reset(new DomainPeerDiscovery(asio::ip::udp::v6(), port, ioContext, logger));
     } catch(const std::exception& e) {
-        std::cerr << "Can't start peer discovery (IPv6): " << e.what() << std::endl;
+        if (logger)
+            logger->e("[peerdiscovery] can't start IPv6: %s", e.what());
     }
 }
 
-PeerDiscovery::~PeerDiscovery(){}
-
-void
-PeerDiscovery::startDiscovery(const std::string &type, ServiceDiscoveredCallback callback)
-{
-    if(peerDiscovery4_) peerDiscovery4_->startDiscovery(type, callback);
-    if(peerDiscovery6_) peerDiscovery6_->startDiscovery(type, callback);
+PeerDiscovery::~PeerDiscovery() {
+    stop();
+    if (ioContext_)
+        ioContext_->stop();
+    if (ioRunnner_.joinable())
+        ioRunnner_.join();
 }
 
 void
-PeerDiscovery::startPublish(const std::string &type, const msgpack::sbuffer &pack_buf)
+PeerDiscovery::startDiscovery(const std::string& type, ServiceDiscoveredCallback callback)
 {
-    if(peerDiscovery4_) peerDiscovery4_->startPublish(type, pack_buf);
-    if(peerDiscovery6_) peerDiscovery6_->startPublish(type, pack_buf);
+    if (peerDiscovery4_) peerDiscovery4_->startDiscovery(type, callback);
+    if (peerDiscovery6_) peerDiscovery6_->startDiscovery(type, callback);
 }
 
 void
-PeerDiscovery::startPublish(sa_family_t domain, const std::string &type, const msgpack::sbuffer &pack_buf)
+PeerDiscovery::startPublish(const std::string& type, const msgpack::sbuffer& pack_buf)
+{
+    if (peerDiscovery4_) peerDiscovery4_->startPublish(type, pack_buf);
+    if (peerDiscovery6_) peerDiscovery6_->startPublish(type, pack_buf);
+}
+
+void
+PeerDiscovery::startPublish(sa_family_t domain, const std::string& type, const msgpack::sbuffer& pack_buf)
 {
     if (domain == AF_INET) {
         if (peerDiscovery4_) peerDiscovery4_->startPublish(type, pack_buf);
@@ -537,8 +317,8 @@ PeerDiscovery::startPublish(sa_family_t domain, const std::string &type, const m
 void
 PeerDiscovery::stop()
 {
-    if(peerDiscovery4_) peerDiscovery4_->stop();
-    if(peerDiscovery6_) peerDiscovery6_->stop();
+    if (peerDiscovery4_) peerDiscovery4_->stop();
+    if (peerDiscovery6_) peerDiscovery6_->stop();
 }
 
 bool
@@ -558,7 +338,7 @@ PeerDiscovery::stopPublish(const std::string &type)
 }
 
 bool
-PeerDiscovery::stopPublish(sa_family_t domain, const std::string &type)
+PeerDiscovery::stopPublish(sa_family_t domain, const std::string& type)
 {
     if (domain == AF_INET) {
         return peerDiscovery4_ and peerDiscovery4_->stopPublish(type);
@@ -568,10 +348,4 @@ PeerDiscovery::stopPublish(sa_family_t domain, const std::string &type)
     return false;
 }
 
-void
-PeerDiscovery::join() {
-    if(peerDiscovery4_) peerDiscovery4_->join();
-    if(peerDiscovery6_) peerDiscovery6_->join();
-}
-
 }

src/securedht.cpp

@@ -17,6 +17,9 @@
  *  You should have received a copy of the GNU General Public License
  *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 
 #include "securedht.h"
 #include "rng.h"

src/value.cpp

@@ -17,10 +17,17 @@
  *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
-#include "value.h"
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 
+#include "value.h"
 #include "default_types.h"
+#include "callbacks.h"
+
+#ifndef OPENDHT_LIGHT
 #include "securedht.h" // print certificate ID
+#endif
 
 #ifdef OPENDHT_JSONCPP
 #include "base64.h"
@@ -38,6 +45,46 @@ Value::Filter bindFilterRaw(FilterRaw raw_filter, void* user_data) {
     };
 }
 
+#ifndef OPENDHT_LIGHT
+Value::Filter
+Value::OwnerFilter(const crypto::PublicKey& pk) {
+    return OwnerFilter(pk.getId());
+}
+
+
+Value::Filter
+Value::OwnerFilter(const InfoHash& pkh) {
+    return [pkh](const Value& v) {
+        return v.owner and v.owner->getId() == pkh;
+    };
+}
+
+void
+Value::sign(const crypto::PrivateKey& key) {
+    if (isEncrypted())
+        throw DhtException("Can't sign encrypted data.");
+    owner = std::make_shared<const crypto::PublicKey>(key.getPublicKey());
+    signature = key.sign(getToSign());
+}
+
+bool
+Value::checkSignature() const {
+    return isSigned() and owner->checkSignature(getToSign(), signature);
+}
+
+Value
+Value::encrypt(const crypto::PrivateKey& from, const crypto::PublicKey& to) {
+    if (isEncrypted())
+        throw DhtException("Data is already encrypted.");
+    setRecipient(to.getId());
+    sign(from);
+    Value nv {id};
+    nv.setCypher(to.encrypt(getToEncrypt()));
+    return nv;
+}
+
+#endif
+
 std::ostream& operator<< (std::ostream& s, const Value& v)
 {
     auto flags(s.flags());
@@ -52,7 +99,9 @@ std::ostream& operator<< (std::ostream& s, const Value& v)
     if (not v.isEncrypted()) {
         if (v.type == IpServiceAnnouncement::TYPE.id) {
             s << IpServiceAnnouncement(v.data);
-        } else if (v.type == CERTIFICATE_TYPE.id) {
+        }
+#ifndef OPENDHT_LIGHT
+        else if (v.type == CERTIFICATE_TYPE.id) {
             s << "Certificate";
 #ifdef OPENDHT_LOG_CRT_ID
             try {
@@ -62,7 +111,9 @@ std::ostream& operator<< (std::ostream& s, const Value& v)
                 s << " (invalid)";
             }
 #endif
-        } else {
+        }
+#endif
+        else {
             s << "Data (type: " << v.type << " ): ";
             s << std::hex;
             for (auto i : v.data)
@@ -159,9 +210,12 @@ Value::msgpack_unpack_body(const msgpack::object& o)
                 seq = rseq->as<decltype(seq)>();
             else
                 throw msgpack::type_error();
+
+#ifndef OPENDHT_LIGHT
             crypto::PublicKey new_owner;
             new_owner.msgpack_unpack(*rowner);
             owner = std::make_shared<const crypto::PublicKey>(std::move(new_owner));
+#endif
             if (auto rrecipient = findMapValue(*rbody, "to")) {
                 recipient = rrecipient->as<InfoHash>();
             }
@@ -190,11 +244,13 @@ Value::Value(Json::Value& json)
     }
     if (json.isMember("seq"))
         seq = json["seq"].asInt();
+#ifndef OPENDHT_LIGHT
     if (json.isMember("owner")) {
         auto ownerStr = json["owner"].asString();
         auto ownerBlob = std::vector<unsigned char>(ownerStr.begin(), ownerStr.end());
         owner = std::make_shared<const crypto::PublicKey>(ownerBlob);
     }
+#endif
     if (json.isMember("to")) {
         auto toStr = json["to"].asString();
         recipient = InfoHash(toStr);
@@ -314,9 +370,11 @@ FieldValueIndex::FieldValueIndex(const Value& v, const Select& s)
             case Value::Field::ValueType:
                 index[f] = {f, v.type};
                 break;
+#ifndef OPENDHT_LIGHT
             case Value::Field::OwnerPk:
                 index[f] = {f, v.owner ? v.owner->getId() : InfoHash() };
                 break;
+#endif
             case Value::Field::SeqNum:
                 index[f] = {f, v.seq};
                 break;

tests/compile_http.sh

@@ -1 +0,0 @@
-g++ -Wall -Wextra -Wfatal-errors -pedantic -g ../src/http.cpp tests_runner.cpp httptester.cpp -o run.out -lopendht -lpthread -lcppunit -ljsoncpp -DOPENDHT_JSONCPP -I../include/opendht -DASIO_STANDALONE

tests/cryptotester.cpp

@@ -19,7 +19,7 @@
 
 #include "cryptotester.h"
 
-#include "opendht/crypto.h"
+#include <opendht/crypto.h>
 
 namespace test {
 CPPUNIT_TEST_SUITE_REGISTRATION(CryptoTester);
@@ -34,16 +34,41 @@ CryptoTester::testSignatureEncryption() {
     auto key = dht::crypto::PrivateKey::generate();
     auto public_key = key.getPublicKey();
 
-    std::vector<uint8_t> data {5, 10};
-    std::vector<uint8_t> signature = key.sign(data);
+    std::vector<uint8_t> data1 {5, 10};
+    std::vector<uint8_t> data2(64 * 1024, 10);
+
+    std::vector<uint8_t> signature1 = key.sign(data1);
+    std::vector<uint8_t> signature2 = key.sign(data2);
 
     // check signature
-    CPPUNIT_ASSERT(public_key.checkSignature(data, signature));
+    CPPUNIT_ASSERT(public_key.checkSignature(data1, signature1));
+    CPPUNIT_ASSERT(public_key.checkSignature(data2, signature2));
 
     // encrypt data
-    std::vector<uint8_t> encrypted = public_key.encrypt(data);
-    std::vector<uint8_t> decrypted = key.decrypt(encrypted);
-    CPPUNIT_ASSERT(data == decrypted);
+    {
+        std::vector<uint8_t> encrypted = public_key.encrypt(data1);
+        std::vector<uint8_t> decrypted = key.decrypt(encrypted);
+        CPPUNIT_ASSERT(data1 == decrypted);
+    }
+
+    {
+        std::vector<uint8_t> encrypted = public_key.encrypt(data2);
+        std::vector<uint8_t> decrypted = key.decrypt(encrypted);
+        CPPUNIT_ASSERT(data2 == decrypted);
+    }
+
+    // encrypt data (invalid)
+    {
+        std::vector<uint8_t> encrypted = public_key.encrypt(data1);
+        encrypted[1]++;
+        CPPUNIT_ASSERT_THROW(key.decrypt(encrypted), std::runtime_error);
+    }
+
+    {
+        std::vector<uint8_t> encrypted = public_key.encrypt(data2);
+        encrypted[2]++;
+        CPPUNIT_ASSERT_THROW(key.decrypt(encrypted), std::runtime_error);
+    }
 }
 
 void

tests/dhtproxytester.cpp

@@ -27,56 +27,58 @@
 #include <chrono>
 #include <condition_variable>
 
+using namespace std::chrono_literals;
 
 namespace test {
 CPPUNIT_TEST_SUITE_REGISTRATION(DhtProxyTester);
 
 void
 DhtProxyTester::setUp() {
-    logger = dht::log::getStdLogger();
-
-    nodePeer.run(0, /*identity*/{}, /*threaded*/true);
+    nodePeer.run(0);
 
     nodeProxy = std::make_shared<dht::DhtRunner>();
-    nodeProxy->run(0, /*identity*/{}, /*threaded*/true);
+    nodeProxy->run(0);
     nodeProxy->bootstrap(nodePeer.getBound());
 
     auto serverCAIdentity = dht::crypto::generateEcIdentity("DHT Node CA");
     auto serverIdentity = dht::crypto::generateIdentity("DHT Node", serverCAIdentity);
 
-    serverProxy = std::unique_ptr<dht::DhtProxyServer>(
-        new dht::DhtProxyServer(
+    serverProxy = std::make_unique<dht::DhtProxyServer>(
             //dht::crypto::Identity{}, // http
             serverIdentity,            // https
-            nodeProxy, 8080, /*pushServer*/"127.0.0.1:8090", logger));
+            nodeProxy, 8080, /*pushServer*/"127.0.0.1:8090");
 
     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";
-    clientContext.logger = logger;
-
-    nodeClient = std::make_shared<dht::DhtRunner>();
-    nodeClient->run(0, clientConfig, std::move(clientContext));
-    nodeClient->bootstrap(nodePeer.getBound());
-    nodeClient->setProxyServer("https://127.0.0.1:8080");
-    nodeClient->enableProxy(true); // creates DhtProxyClient
+    clientConfig.proxy_server = "https://127.0.0.1:8080";
 }
 
 void
 DhtProxyTester::tearDown() {
-    logger->d("[tester:proxy] stopping peer node");
     nodePeer.join();
-    nodeClient->join();
-    logger->d("[tester:proxy] stopping proxy server");
-    serverProxy.reset(nullptr);
-    logger->d("[tester:proxy] stopping proxy node");
-    nodeProxy->join();
+    nodeClient.join();
+
+    bool done = false;
+    std::condition_variable cv;
+    std::mutex cv_m;
+    nodeProxy->shutdown([&]{
+        std::lock_guard<std::mutex> lk(cv_m);
+        done = true;
+        cv.notify_all();
+    });
+    std::unique_lock<std::mutex> lk(cv_m);
+    CPPUNIT_ASSERT(cv.wait_for(lk, 5s, [&]{ return done; }));
+    serverProxy.reset();
+    nodeProxy.reset();
 }
 
 void
 DhtProxyTester::testGetPut() {
+    nodeClient.run(0, clientConfig);
+
     bool done = false;
     std::condition_variable cv;
     std::mutex cv_m;
@@ -85,22 +87,24 @@ DhtProxyTester::testGetPut() {
     dht::Value val {"Hey! It's been a long time. How have you been?"};
     auto val_data = val.data;
     {
-        std::unique_lock<std::mutex> lk(cv_m);
         nodePeer.put(key, std::move(val), [&](bool) {
             std::lock_guard<std::mutex> lk(cv_m);
             done = true;
             cv.notify_all();
         });
-        CPPUNIT_ASSERT(cv.wait_for(lk, std::chrono::seconds(10), [&]{ return done; }));
+        std::unique_lock<std::mutex> lk(cv_m);
+        CPPUNIT_ASSERT(cv.wait_for(lk, 10s, [&]{ return done; }));
     }
 
-    auto vals = nodeClient->get(key).get();
+    auto vals = nodeClient.get(key).get();
     CPPUNIT_ASSERT(not vals.empty());
     CPPUNIT_ASSERT(vals.front()->data == val_data);
 }
 
 void
 DhtProxyTester::testListen() {
+    nodeClient.run(0, clientConfig);
+
     std::condition_variable cv;
     std::mutex cv_m;
     std::unique_lock<std::mutex> lk(cv_m);
@@ -117,11 +121,11 @@ DhtProxyTester::testListen() {
         done = true;
         cv.notify_all();
     });
-    CPPUNIT_ASSERT(cv.wait_for(lk, std::chrono::seconds(10), [&]{ return done; }));
+    CPPUNIT_ASSERT(cv.wait_for(lk, 10s, [&]{ return done; }));
     done = false;
 
     std::vector<dht::Blob> values;
-    auto token = nodeClient->listen(key, [&](const std::vector<std::shared_ptr<dht::Value>>& v, bool expired) {
+    auto token = nodeClient.listen(key, [&](const std::vector<std::shared_ptr<dht::Value>>& v, bool expired) {
         if (not expired) {
             std::lock_guard<std::mutex> lk(cv_m);
             for (const auto& value : v)
@@ -131,7 +135,7 @@ DhtProxyTester::testListen() {
         }
         return true;
     });
-    CPPUNIT_ASSERT(cv.wait_for(lk, std::chrono::seconds(10), [&]{ return done; }));
+    CPPUNIT_ASSERT(cv.wait_for(lk, 10s, [&]{ return done; }));
     done = false;
     // Here values should contains 1 values
     CPPUNIT_ASSERT_EQUAL(static_cast<int>(values.size()), 1);
@@ -142,8 +146,8 @@ DhtProxyTester::testListen() {
     dht::Value secondVal {"You're a monster"};
     auto secondVal_data = secondVal.data;
     nodePeer.put(key, std::move(secondVal));
-    CPPUNIT_ASSERT(cv.wait_for(lk, std::chrono::seconds(10), [&]{ return done; }));
-    nodeClient->cancelListen(key, std::move(token));
+    CPPUNIT_ASSERT(cv.wait_for(lk, 10s, [&]{ return done; }));
+    nodeClient.cancelListen(key, std::move(token));
     // Here values should contains 2 values
     CPPUNIT_ASSERT_EQUAL(static_cast<int>(values.size()), 2);
     CPPUNIT_ASSERT(values.back() == secondVal_data);
@@ -151,7 +155,8 @@ DhtProxyTester::testListen() {
 
 void
 DhtProxyTester::testResubscribeGetValues() {
-    nodeClient->setPushNotificationToken("atlas");
+    clientConfig.push_token = "atlas";
+    nodeClient.run(0, clientConfig);
 
     bool done = false;
     std::condition_variable cv;
@@ -159,68 +164,65 @@ DhtProxyTester::testResubscribeGetValues() {
     std::unique_lock<std::mutex> lk(cv_m);
     auto key = dht::InfoHash::get("GLaDOs");
 
-    // If a peer send a value, the listen operation from the client
+    // If a peer sent a value, the listen operation from the client
     // should retrieve this value
     dht::Value firstVal {"Hey! It's been a long time. How have you been?"};
     auto firstVal_data = firstVal.data;
-    nodePeer.put(key, std::move(firstVal), [&](bool) {
+    nodePeer.put(key, std::move(firstVal), [&](bool ok) {
         std::lock_guard<std::mutex> lk(cv_m);
+        CPPUNIT_ASSERT(ok);
         done = true;
         cv.notify_all();
     });
-    CPPUNIT_ASSERT(cv.wait_for(lk, std::chrono::seconds(10), [&]{ return done; }));
+    CPPUNIT_ASSERT(cv.wait_for(lk, 10s, [&]{ return done; }));
     done = false;
 
     // Send a first subscribe, the value is sent via a push notification
     // So ignore values here.
-    nodeClient->listen(key, [&](const std::vector<std::shared_ptr<dht::Value>>&, bool) {
+    nodeClient.listen(key, [&](const std::vector<std::shared_ptr<dht::Value>>&, bool) {
         return true;
     });
     cv.wait_for(lk, std::chrono::seconds(1));
 
     // Reboot node (to avoid cache)
-    nodeClient->join();
-    nodeClient->run(0, clientConfig, std::move(clientContext));
-    nodeClient->bootstrap(nodePeer.getBound());
-    nodeClient->setProxyServer("https://127.0.0.1:8080");
-    nodeClient->enableProxy(true);
-    nodeClient->setPushNotificationToken("atlas");
+    nodeClient.join();
+    clientConfig.push_token = "";
+    nodeClient.run(0, clientConfig);
 
     // For the second subscribe, the proxy will return the value in the body
-    auto values = std::vector<dht::Blob>();
-    auto ftoken = nodeClient->listen(key, [&](const std::vector<std::shared_ptr<dht::Value>>& v, bool expired) {
+    std::vector<std::shared_ptr<dht::Value>> values;
+    auto ftoken = nodeClient.listen(key, [&](const std::vector<std::shared_ptr<dht::Value>>& v, bool expired) {
         if (not expired) {
             std::lock_guard<std::mutex> lk(cv_m);
-            for (const auto& value : v)
-                values.emplace_back(value->data);
+            values.insert(values.end(), v.begin(), v.end());
             done = true;
             cv.notify_all();
         }
         return true;
     });
 
-    CPPUNIT_ASSERT(cv.wait_for(lk, std::chrono::seconds(10), [&]{ return done; }));
+    CPPUNIT_ASSERT(cv.wait_for(lk, 10s, [&]{ return done; }));
     auto token = ftoken.get();
     CPPUNIT_ASSERT(token);
-    nodeClient->cancelListen(key, token);
+    nodeClient.cancelListen(key, token);
     // Here values should still contains 1 values
     CPPUNIT_ASSERT_EQUAL((size_t)1u, values.size());
-    CPPUNIT_ASSERT(firstVal_data == values.front());
+    CPPUNIT_ASSERT(firstVal_data == values.front()->data);
 }
 
 void
 DhtProxyTester::testPutGet40KChars()
 {
+    nodeClient.run(0, clientConfig);
+    constexpr size_t N = 40000;
+
     // Arrange
     auto key = dht::InfoHash::get("testPutGet40KChars");
     std::vector<std::shared_ptr<dht::Value>> values;
-    std::string mtu = "";
-    for (int i = 0; i < 40000; i++){
-        if (i % 2 == 0)
-            mtu.append("M");
-        else
-            mtu.append("T");
-    }
+    std::vector<uint8_t> mtu;
+    mtu.reserve(N);
+    for (size_t i = 0; i < N; i++)
+        mtu.emplace_back((i % 2) ? 'T' : 'M');
     std::condition_variable cv;
     std::mutex cv_m;
     std::unique_lock<std::mutex> lk(cv_m);
@@ -229,28 +231,61 @@ DhtProxyTester::testPutGet40KChars()
 
     // Act
     dht::Value val {mtu};
-    nodeClient->put(key, std::move(val), [&](bool ok) {
+    nodePeer.put(key, std::move(val), [&](bool ok) {
         std::lock_guard<std::mutex> lk(cv_m);
         done_put = ok;
         cv.notify_all();
     });
-    CPPUNIT_ASSERT(cv.wait_for(lk, std::chrono::seconds(10), [&]{ return done_put; }));
+    CPPUNIT_ASSERT(cv.wait_for(lk, 10s, [&]{ return done_put; }));
 
-    nodeClient->get(key, [&](const std::vector<std::shared_ptr<dht::Value>>& vals){
-        values = vals;
+    nodeClient.get(key, [&](const std::vector<std::shared_ptr<dht::Value>>& vals){
+        values.insert(values.end(), vals.begin(), vals.end());
         return true;
     },[&](bool ok){
         std::lock_guard<std::mutex> lk(cv_m);
         done_get = ok;
         cv.notify_all();
     });
-    CPPUNIT_ASSERT(cv.wait_for(lk, std::chrono::seconds(10), [&]{ return done_get; }));
+    CPPUNIT_ASSERT(cv.wait_for(lk, 10s, [&]{ return done_get; }));
 
     // Assert
-    dht::Value mtu_val {mtu};
-    for (const auto &value: values){
-        CPPUNIT_ASSERT(value->data == mtu_val.data);
+    CPPUNIT_ASSERT_EQUAL((size_t)1u, values.size());
+    for (const auto &value: values)
+        CPPUNIT_ASSERT(value->data == mtu);
+}
+
+void
+DhtProxyTester::testFuzzy()
+{
+    constexpr size_t N = 40000;
+
+    // Arrange
+    auto key = dht::InfoHash::get("testFuzzy");
+    std::vector<std::shared_ptr<dht::Value>> values;
+    std::vector<uint8_t> mtu;
+    mtu.reserve(N);
+    for (size_t i = 0; i < N; i++)
+        mtu.emplace_back((i % 2) ? 'T' : 'M');
+
+    // Act
+    for (size_t i = 0; i < 100; i++) {
+        auto nodeTest = std::make_shared<dht::DhtRunner>();
+        nodeTest->run(0, clientConfig);
+        nodeTest->put(key, dht::Value(mtu), [&](bool ok) {
+            CPPUNIT_ASSERT(ok);
+        });
+        nodeTest->get(key, [&](const std::vector<std::shared_ptr<dht::Value>>& vals){
+            values.insert(values.end(), vals.begin(), vals.end());
+            return true;
+        },[&](bool ok){
+            CPPUNIT_ASSERT(ok);
+        });
+        std::this_thread::sleep_for(10ms);
     }
+
+    // Assert
+    for (const auto &value: values)
+        CPPUNIT_ASSERT(value->data == mtu);
 }
 
 }  // namespace test

tests/dhtproxytester.h

@@ -35,6 +35,7 @@ class DhtProxyTester : public CppUnit::TestFixture {
     CPPUNIT_TEST(testListen);
     CPPUNIT_TEST(testResubscribeGetValues);
     CPPUNIT_TEST(testPutGet40KChars);
+    CPPUNIT_TEST(testFuzzy);
     CPPUNIT_TEST_SUITE_END();
 
  public:
@@ -65,16 +66,14 @@ class DhtProxyTester : public CppUnit::TestFixture {
     */
    void testPutGet40KChars();
 
- private:
-    dht::DhtRunner nodePeer;
+   void testFuzzy();
 
-    std::shared_ptr<dht::DhtRunner> nodeClient;
+ private:
+    dht::DhtRunner::Config clientConfig {};
+    dht::DhtRunner nodePeer;
+    dht::DhtRunner nodeClient;
     std::shared_ptr<dht::DhtRunner> nodeProxy;
     std::unique_ptr<dht::DhtProxyServer> serverProxy;
-
-    dht::DhtRunner::Context clientContext {};
-    dht::DhtRunner::Config clientConfig {};
-    std::shared_ptr<dht::Logger> logger {};
 };
 
 }  // namespace test

tests/dhtrunnertester.cpp

@@ -22,19 +22,32 @@
 #include <chrono>
 #include <mutex>
 #include <condition_variable>
+using namespace std::chrono_literals;
 
 namespace test {
 CPPUNIT_TEST_SUITE_REGISTRATION(DhtRunnerTester);
 
 void
 DhtRunnerTester::setUp() {
-    node1.run(42222, {}, true);
-    node2.run(42232, {}, true);
+    node1.run(42222);
+    node2.run(42232);
     node2.bootstrap(node1.getBound());
 }
 
 void
 DhtRunnerTester::tearDown() {
+    unsigned done {0};
+    std::condition_variable cv;
+    std::mutex cv_m;
+    auto shutdown = [&]{
+        std::lock_guard<std::mutex> lk(cv_m);
+        done++;
+        cv.notify_all();
+    };
+    node1.shutdown(shutdown);
+    node2.shutdown(shutdown);
+    std::unique_lock<std::mutex> lk(cv_m);
+    CPPUNIT_ASSERT(cv.wait_for(lk, 5s, [&]{ return done == 2; }));
     node1.join();
     node2.join();
 }
@@ -90,27 +103,22 @@ DhtRunnerTester::testListen() {
 
     for (unsigned i=0; i<N; i++) {
         node2.put(a, dht::Value("v1"), [&](bool ok) {
-            {
-                std::lock_guard<std::mutex> lock(mutex);
-                putCount++;
-                if (ok) putOkCount++;
-            }
+            std::lock_guard<std::mutex> lock(mutex);
+            putCount++;
+            if (ok) putOkCount++;
             cv.notify_all();
         });
         node2.put(b, dht::Value("v2"), [&](bool ok) {
-            {
-                std::lock_guard<std::mutex> lock(mutex);
-                putCount++;
-                if (ok) putOkCount++;
-            }
+            std::lock_guard<std::mutex> lock(mutex);
+            putCount++;
+            if (ok) putOkCount++;
             cv.notify_all();
         });
     }
 
     {
         std::unique_lock<std::mutex> lk(mutex);
-        cv.wait_for(lk, std::chrono::seconds(30), [&]{ return putCount == N * 2u; });
-        CPPUNIT_ASSERT_EQUAL(N * 2u, putCount);
+        CPPUNIT_ASSERT(cv.wait_for(lk, 30s, [&]{ return putCount == N * 2u; }));
         CPPUNIT_ASSERT_EQUAL(N * 2u, putOkCount);
     }
 

tests/httptester.cpp

@@ -19,41 +19,35 @@
 
 #include "httptester.h"
 
-// std
+#include <opendht/value.h>
+#include <opendht/dhtrunner.h>
+
 #include <iostream>
 #include <string>
-
 #include <chrono>
 #include <condition_variable>
 
-
 namespace test {
 CPPUNIT_TEST_SUITE_REGISTRATION(HttpTester);
 
 void
 HttpTester::setUp() {
-    logger = dht::log::getStdLogger();
+    nodePeer = std::make_shared<dht::DhtRunner>();
+    nodePeer->run(0);
 
-    nodePeer.run(0, /*identity*/{}, /*threaded*/true);
-
-    nodeProxy = std::make_shared<dht::DhtRunner>();
+    auto nodeProxy = std::make_shared<dht::DhtRunner>();
     nodeProxy->run(0, /*identity*/{}, /*threaded*/true);
-    nodeProxy->bootstrap(nodePeer.getBound());
+    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", logger));
-
+            /*http*/dht::crypto::Identity{}, nodeProxy, 8080, /*pushServer*/"127.0.0.1:8090"));
 }
 
 void
 HttpTester::tearDown() {
-    logger->d("[tester:http] stopping peer node");
-    nodePeer.join();
-    logger->d("[tester:http] stopping proxy server");
-    serverProxy.reset(nullptr);
-    logger->d("[tester:http] stopping proxy node");
-    nodeProxy->join();
+    serverProxy.reset();
+    nodePeer->join();
 }
 
 void
@@ -234,31 +228,72 @@ HttpTester::test_send_json() {
     std::mutex cv_m;
     std::unique_lock<std::mutex> lk(cv_m);
     bool done = false;
-
-    dht::Value val {"hey"};
-    auto json = val.toJson();
-    json["permanent"] = false;
-    std::cout << "[test_send_json] sending:\n" << json << std::endl;
-    Json::Value resp_val;
     unsigned int status = 0;
-    std::string url = "http://127.0.0.1:8080/key";
+
+    auto json = dht::Value("hey").toJson();
+    Json::Value resp_val;
+
     // Act
-    auto request = std::make_shared<dht::http::Request>(serverProxy->io_context(), url, json,
-                   [this, &cv, &done, &status, &resp_val](Json::Value value, unsigned int status_code){
-        if (status_code != 200 and logger)
-            logger->e("[tester] [status] failed with code=%i", status_code);
-        std::cout << "[tester] got response:\n" << value << std::endl;
-        resp_val = value;
-        status = status_code;
-        done = true;
-        cv.notify_all();
-    }, logger);
-    request->set_method(restinio::http_method_post());
+    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) {
+            std::lock_guard<std::mutex> lk(cv_m);
+            resp_val = std::move(value);
+            status = status_code;
+            done = true;
+            cv.notify_all();
+        });
     request->send();
+
     // Assert
     CPPUNIT_ASSERT(cv.wait_for(lk, std::chrono::seconds(10), [&]{ return done; }));
-    CPPUNIT_ASSERT(status == 200);
-    CPPUNIT_ASSERT(resp_val["data"] == val.toJson()["data"]);
+    CPPUNIT_ASSERT_EQUAL(200u, status);
+    CPPUNIT_ASSERT_EQUAL(json["data"].asString(), resp_val["data"].asString());
+    done = false;
+
+#if 0
+    request = std::make_shared<dht::http::Request>(serverProxy->io_context(),
+        "http://google.ca",
+        [&](const dht::http::Response& response) {
+            std::lock_guard<std::mutex> lk(cv_m);
+            status = response.status_code;
+            done = true;
+            cv.notify_all();
+        });
+    request->send();
+
+    CPPUNIT_ASSERT(cv.wait_for(lk, std::chrono::seconds(10), [&]{ return done; }));
+    CPPUNIT_ASSERT(status != 0);
+    done = false;
+
+    request = std::make_shared<dht::http::Request>(serverProxy->io_context(),
+        "https://google.ca",
+        [&](const dht::http::Response& response) {
+            std::lock_guard<std::mutex> lk(cv_m);
+            status = response.status_code;
+            done = true;
+            cv.notify_all();
+        });
+    request->send();
+
+    CPPUNIT_ASSERT(cv.wait_for(lk, std::chrono::seconds(10), [&]{ return done; }));
+    CPPUNIT_ASSERT(status != 0);
+    done = false;
+
+    request = std::make_shared<dht::http::Request>(serverProxy->io_context(),
+        "https://google.ca/sdbjklwGBIP",
+        [&](const dht::http::Response& response) {
+            std::lock_guard<std::mutex> lk(cv_m);
+            status = response.status_code;
+            done = true;
+            cv.notify_all();
+        });
+    request->send();
+
+    CPPUNIT_ASSERT(cv.wait_for(lk, std::chrono::seconds(10), [&]{ return done; }));
+    CPPUNIT_ASSERT_EQUAL(404u, status);
+#endif
 }
 
 }  // namespace test

tests/httptester.h

@@ -23,12 +23,12 @@
 #include <cppunit/TestFixture.h>
 #include <cppunit/extensions/HelperMacros.h>
 
-#include <opendht/value.h>
-#include <opendht/log.h>
 #include <opendht/http.h>
-
-#include <opendht/dhtrunner.h>
 #include <opendht/dht_proxy_server.h>
+#include <asio.hpp>
+
+#include <thread>
+#include <memory>
 
 namespace test {
 
@@ -88,10 +88,7 @@ class HttpTester : public CppUnit::TestFixture {
    void test_send_json();
 
  private:
-    std::shared_ptr<dht::Logger> logger {};
-
-    dht::DhtRunner nodePeer;
-    std::shared_ptr<dht::DhtRunner> nodeProxy;
+    std::shared_ptr<dht::DhtRunner> nodePeer;
     std::unique_ptr<dht::DhtProxyServer> serverProxy;
 };
 

tests/peerdiscoverytester.cpp

@@ -20,9 +20,12 @@
 #include "peerdiscoverytester.h"
 #include "opendht/value.h"
 
+#include <mutex>
+#include <condition_variable>
+
 namespace test {
 
-constexpr int MULTICAST_PORT = 2222;
+constexpr unsigned MULTICAST_PORT = 2222;
 const std::string DHT_NODE_NAME {"dht"};
 const std::string JAMI_NODE_NAME {"jami"};
 

tools/CMakeLists.txt

@@ -3,9 +3,9 @@ add_executable (dhtnode dhtnode.cpp tools_common.h)
 add_executable (dhtscanner dhtscanner.cpp tools_common.h)
 add_executable (dhtchat dhtchat.cpp tools_common.h)
 
-target_link_libraries (dhtnode LINK_PUBLIC readline)
-target_link_libraries (dhtscanner LINK_PUBLIC readline)
-target_link_libraries (dhtchat LINK_PUBLIC readline)
+target_link_libraries (dhtnode LINK_PUBLIC ${READLINE_LIBRARIES})
+target_link_libraries (dhtscanner LINK_PUBLIC ${READLINE_LIBRARIES})
+target_link_libraries (dhtchat LINK_PUBLIC ${READLINE_LIBRARIES})
 
 if (OPENDHT_SHARED)
 	target_link_libraries (dhtnode LINK_PUBLIC opendht)
@@ -19,7 +19,7 @@ endif ()
 
 if (OPENDHT_C)
 	add_executable (dhtcnode dhtcnode.c)
-	target_link_libraries (dhtcnode LINK_PUBLIC opendht-c readline)
+	target_link_libraries (dhtcnode LINK_PUBLIC opendht-c ${READLINE_LIBRARIES})
 endif ()
 
 if (NOT DEFINED CMAKE_INSTALL_BINDIR)

tools/Makefile.am

@@ -1,7 +1,7 @@
 bin_PROGRAMS = dhtnode dhtchat dhtscanner
 noinst_HEADERS = tools_common.h
 
-AM_CPPFLAGS = -I../include @JsonCpp_CFLAGS@ @MsgPack_CFLAGS@
+AM_CPPFLAGS = -isystem @top_srcdir@/include @JsonCpp_CFLAGS@ @MsgPack_CFLAGS@
 
 dhtnode_SOURCES = dhtnode.cpp
 dhtnode_LDFLAGS = -lopendht -lreadline -L@top_builddir@/src/.libs @Argon2_LDFLAGS@ @GnuTLS_LIBS@

tools/dhtchat.cpp

@@ -16,6 +16,9 @@
  *  You should have received a copy of the GNU General Public License
  *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 
 #include "tools_common.h"
 #include <opendht/rng.h>
@@ -37,11 +40,6 @@ const std::string printTime(const std::time_t& now) {
     return buf;
 }
 
-void print_node_info(const DhtRunner& dht, const dht_params&) {
-    std::cout << "OpenDht node " << dht.getNodeId() << " running on port " <<  dht.getBoundPort() << std::endl;
-    std::cout << "Public key ID " << dht.getId() << std::endl;
-}
-
 void print_usage() {
     std::cout << "Usage: dhtchat [-n network_id] [-p local_port] [-b bootstrap_host[:port]]" << std::endl << std::endl;
     std::cout << "dhtchat, a simple OpenDHT command line chat client." << std::endl;
@@ -62,53 +60,20 @@ main(int argc, char **argv)
 
     DhtRunner dht;
     try {
-        if (not params.id.first) {
-            auto node_ca = std::make_unique<dht::crypto::Identity>(dht::crypto::generateEcIdentity("DHT Node CA"));
-            params.id = dht::crypto::generateIdentity("DHT Chat Node", *node_ca);
-            if (not params.save_identity.empty()) {
-                dht::crypto::saveIdentity(*node_ca, params.save_identity + "_ca", params.privkey_pwd);
-                dht::crypto::saveIdentity(params.id, params.save_identity, params.privkey_pwd);
-            }
-        }
-
-        dht::DhtRunner::Config config {};
-        config.dht_config.node_config.network = params.network;
-        config.dht_config.node_config.maintain_storage = false;
-        config.dht_config.node_config.persist_path = params.persist_path;
-        config.dht_config.id = params.id;
-        config.threaded = true;
-        config.proxy_server = params.proxyclient;
-        config.push_node_id = "dhtnode";
-        config.push_token = params.devicekey;
-        config.peer_discovery = params.peer_discovery;
-        config.peer_publish = params.peer_discovery;
-
-        dht::DhtRunner::Context context {};
-        if (params.log) {
-            if (params.syslog or (params.daemonize and params.logfile.empty()))
-                context.logger = log::getSyslogLogger("dhtnode");
-            else if (not params.logfile.empty())
-                context.logger = log::getFileLogger(params.logfile);
-            else
-                context.logger = log::getStdLogger();
-        }
-        dht.run(params.port, config, std::move(context));
+        params.generate_identity = true;
+        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());
 
-#ifdef OPENDHT_PROXY_CLIENT
-    if (!params.proxyclient.empty()) {
-        dht.setProxyServer(params.proxyclient);
-        dht.enableProxy(true);
-    }
-#endif //OPENDHT_PROXY_CLIENT
-
         print_node_info(dht, params);
         std::cout << "  type 'c {hash}' to join a channel" << std::endl << std::endl;
 
         bool connected {false};
         InfoHash room;
+        std::future<size_t> token;
+
         const InfoHash myid = dht.getId();
 
 #ifndef WIN32_NATIVE
@@ -139,7 +104,7 @@ main(int argc, char **argv)
                         std::cout << "Joining h(" << idstr << ") = " << room << std::endl;
                     }
 
-                    dht.listen<dht::ImMessage>(room, [&](dht::ImMessage&& msg) {
+                    token = dht.listen<dht::ImMessage>(room, [&](dht::ImMessage&& msg) {
                         if (msg.from != myid)
                             std::cout << msg.from.toString() << " at " << printTime(msg.date)
                                       << " (took " << print_dt(std::chrono::system_clock::now() - std::chrono::system_clock::from_time_t(msg.date))
@@ -153,6 +118,7 @@ main(int argc, char **argv)
             } else {
                 auto now = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
                 if (op == "d") {
+                    dht.cancelListen(room, std::move(token));
                     connected = false;
                     continue;
                 } else if (op == "e") {

tools/dhtcnode.c

@@ -3,12 +3,19 @@
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
+#include <stdlib.h>
+#include <arpa/inet.h>
+
+struct op_context {
+    dht_runner* runner;
+    int d;
+};
 
 bool dht_value_callback(const dht_value* value, bool expired, void* user_data)
 {
-    dht_runner* runner = (dht_runner*)user_data;
     dht_data_view data = dht_value_get_data(value);
     printf("Value callback %s: %.*s.\n", expired ? "expired" : "new", (int)data.size, data.data);
+    return true;
 }
 
 bool dht_get_callback(const dht_value* value, void* user_data)
@@ -16,16 +23,61 @@ bool dht_get_callback(const dht_value* value, void* user_data)
     dht_runner* runner = (dht_runner*)user_data;
     dht_data_view data = dht_value_get_data(value);
     printf("Get callback: %.*s.\n", (int)data.size, data.data);
+    return true;
 }
 
-bool dht_done_callback(bool ok, void* user_data)
+void dht_done_callback(bool ok, void* user_data)
 {
     dht_runner* runner = (dht_runner*)user_data;
     printf("Done callback. %s\n", ok ? "Success !" : "Failure :-(");
 }
 
+void op_context_free(void* user_data)
+{
+    struct op_context* ctx = (struct op_context*)user_data;
+    printf("op_context_free %d.\n", ctx->d);
+    free(ctx);
+}
+
+char* print_addr(const struct sockaddr* addr) {
+    char* s = NULL;
+    switch(addr->sa_family) {
+    case AF_INET: {
+        struct sockaddr_in *addr_in = (struct sockaddr_in *)addr;
+        s = malloc(INET_ADDRSTRLEN);
+        inet_ntop(AF_INET, &(addr_in->sin_addr), s, INET_ADDRSTRLEN);
+        break;
+    }
+    case AF_INET6: {
+        struct sockaddr_in6 *addr_in6 = (struct sockaddr_in6 *)addr;
+        s = malloc(INET6_ADDRSTRLEN);
+        inet_ntop(AF_INET6, &(addr_in6->sin6_addr), s, INET6_ADDRSTRLEN);
+        break;
+    }
+    default:
+        break;
+    }
+    return s;
+}
+
 int main()
 {
+    dht_identity id = dht_identity_generate("testNode", NULL);
+    dht_infohash cert_id = dht_certificate_get_id(id.certificate);
+    printf("Cert ID: %s\n", dht_infohash_print(&cert_id));
+
+    dht_publickey* pk = dht_certificate_get_publickey(id.certificate);
+    dht_infohash pk_id = dht_publickey_get_id(pk);
+    printf("PK ID: %s\n", dht_infohash_print(&pk_id));
+    dht_publickey_delete(pk);
+
+    pk = dht_privatekey_get_publickey(id.privatekey);
+    pk_id = dht_publickey_get_id(pk);
+    printf("Key ID: %s\n", dht_infohash_print(&pk_id));
+    dht_publickey_delete(pk);
+
+    dht_identity_delete(&id);
+
     dht_runner* runner = dht_runner_new();
     dht_runner_run(runner, 4040);
 
@@ -37,17 +89,34 @@ int main()
     // Put data
     const char* data_str = "yo, this is some data";
     dht_value* val = dht_value_new(data_str, strlen(data_str));
-    dht_runner_put(runner, &h, val, dht_done_callback, runner);
+    dht_runner_put(runner, &h, val, dht_done_callback, runner, false);
     dht_value_unref(val);
 
     // Get data
     dht_runner_get(runner, &h, dht_get_callback, dht_done_callback, runner);
 
     // Listen for data
-    dht_op_token* token = dht_runner_listen(runner, &h, dht_value_callback, runner);
+    struct op_context* ctx = malloc(sizeof(struct op_context));
+    ctx->runner = runner;
+    ctx->d = 42;
+    dht_op_token* token = dht_runner_listen(runner, &h, dht_value_callback, op_context_free, ctx);
 
     sleep(1);
 
+    dht_runner_bootstrap(runner, "bootstrap.jami.net", NULL);
+
+    sleep(2);
+
+    struct sockaddr** addrs = dht_runner_get_public_address(runner);
+    for (struct sockaddr** addrIt = addrs; *addrIt; addrIt++) {
+        struct sockaddr* addr = *addrIt;
+        char* addr_str = print_addr(addr);
+        free(addr);
+        printf("Found public address: %s\n", addr_str);
+        free(addr_str);
+    }
+    free(addrs);
+
     dht_runner_cancel_listen(runner, &h, token);
     dht_op_token_delete(token);
 

tools/dhtnode.cpp

@@ -18,6 +18,9 @@
  *  You should have received a copy of the GNU General Public License
  *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 
 #include "tools_common.h"
 extern "C" {
@@ -48,18 +51,6 @@ void print_id_req() {
     std::cout << "An identity is required to perform this operation (run with -i)" << std::endl;
 }
 
-void print_node_info(const std::shared_ptr<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;
-    else
-        std::cout << "IPv4 port " << port4 << ", IPv6 port " << port6 << std::endl;
-    if (params.id.first)
-        std::cout << "Public key ID " << node->getId() << std::endl;
-}
-
 void print_help() {
     std::cout << "OpenDHT command line interface (CLI)" << std::endl;
     std::cout << "Possible commands:" << std::endl
@@ -123,7 +114,7 @@ void cmd_loop(std::shared_ptr<DhtRunner>& node, dht_params& params
 #endif
 )
 {
-    print_node_info(node, params);
+    print_node_info(*node, params);
     std::cout << " (type 'h' or 'help' for a list of possible commands)" << std::endl << std::endl;
 
 #ifndef WIN32_NATIVE
@@ -152,11 +143,13 @@ void cmd_loop(std::shared_ptr<DhtRunner>& node, dht_params& params
             print_help();
             continue;
         } else if (op == "ll") {
-            print_node_info(node, params);
+            auto nodeInfo = node->getNodeInfo();
+            print_node_info(*node, params);
+            std::cout << nodeInfo.ongoing_ops << " ongoing operations" << std::endl;
             std::cout << "IPv4 stats:" << std::endl;
-            std::cout << node->getNodesStats(AF_INET).toString() << std::endl;
+            std::cout << nodeInfo.ipv4.toString() << std::endl;
             std::cout << "IPv6 stats:" << std::endl;
-            std::cout << node->getNodesStats(AF_INET6).toString() << std::endl;
+            std::cout << nodeInfo.ipv6.toString() << std::endl;
 #ifdef OPENDHT_PROXY_SERVER
             for (const auto& proxy : proxies) {
                 std::cout << "Stats for proxy on port " << proxy.first << std::endl;
@@ -532,37 +525,8 @@ main(int argc, char **argv)
 
     auto node = std::make_shared<DhtRunner>();
     try {
-        if (not params.id.first and params.generate_identity) {
-            auto node_ca = std::make_unique<dht::crypto::Identity>(dht::crypto::generateEcIdentity("DHT Node CA"));
-            params.id = dht::crypto::generateIdentity("DHT Node", *node_ca);
-            if (not params.save_identity.empty()) {
-                dht::crypto::saveIdentity(*node_ca, params.save_identity + "_ca", params.privkey_pwd);
-                dht::crypto::saveIdentity(params.id, params.save_identity, params.privkey_pwd);
-            }
-        }
-
-        dht::DhtRunner::Config config {};
-        config.dht_config.node_config.network = params.network;
-        config.dht_config.node_config.maintain_storage = false;
-        config.dht_config.node_config.persist_path = params.persist_path;
-        config.dht_config.id = params.id;
-        config.threaded = true;
-        config.proxy_server = params.proxyclient;
-        config.push_node_id = "dhtnode";
-        config.push_token = params.devicekey;
-        config.peer_discovery = params.peer_discovery;
-        config.peer_publish = params.peer_discovery;
-
-        dht::DhtRunner::Context context {};
-        if (params.log) {
-            if (params.syslog or (params.daemonize and params.logfile.empty()))
-                context.logger = log::getSyslogLogger("dhtnode");
-            else if (not params.logfile.empty())
-                context.logger = log::getFileLogger(params.logfile);
-            else
-                context.logger = log::getStdLogger();
-        }
-        node->run(params.port, config, std::move(context));
+        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;
@@ -576,13 +540,13 @@ main(int argc, char **argv)
 #ifdef OPENDHT_PROXY_SERVER
             proxies.emplace(params.proxyserverssl, std::unique_ptr<DhtProxyServer>(
                 new DhtProxyServer(params.proxy_id,
-                                   node, params.proxyserverssl, params.pushserver, context.logger)));
+                                   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, context.logger)));
+                    node, params.proxyserver, params.pushserver, dhtConf.second.logger)));
 #else
             std::cerr << "DHT proxy server requested but OpenDHT built without proxy server support." << std::endl;
             exit(EXIT_FAILURE);

tools/dhtscanner.cpp

@@ -16,6 +16,9 @@
  *  You should have received a copy of the GNU General Public License
  *  along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 
 #include "tools_common.h"
 #include <opendht/node.h>
@@ -85,21 +88,13 @@ main(int argc, char **argv)
 
     DhtRunner dht;
     try {
-        dht.run(params.port, {}, true, params.network);
-
-        if (params.log) {
-            if (params.syslog)
-                log::enableSyslog(dht, "dhtnode");
-            else if (not params.logfile.empty())
-                log::enableFileLogging(dht, params.logfile);
-            else
-                log::enableLogging(dht);
-        }
+        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());
 
-        std::cout << "OpenDht node " << dht.getNodeId() << " running on port " <<  params.port << std::endl;
+        print_node_info(dht, params);
         std::cout << "Scanning network..." << std::endl;
         auto all_nodes = std::make_shared<NodeSet>();
 

tools/tools_common.h

@@ -25,6 +25,13 @@
 #include <opendht/log.h>
 #include <opendht/crypto.h>
 #include <opendht/network_utils.h>
+#ifdef OPENDHT_INDEXATION
+#include <opendht/indexation/pht.h>
+#endif
+#ifdef OPENDHT_PROXY_SERVER
+#include <opendht/dht_proxy_server.h>
+#endif
+
 #ifndef WIN32_NATIVE
 #include <getopt.h>
 #include <readline/readline.h>
@@ -131,8 +138,66 @@ struct dht_params {
     std::string privkey_pwd {};
     std::string proxy_privkey_pwd {};
     std::string save_identity {};
+    bool no_rate_limit {false};
 };
 
+std::pair<dht::DhtRunner::Config, dht::DhtRunner::Context>
+getDhtConfig(dht_params& params)
+{
+    if (not params.id.first and params.generate_identity) {
+        auto node_ca = std::make_unique<dht::crypto::Identity>(dht::crypto::generateEcIdentity("DHT Node CA"));
+        params.id = dht::crypto::generateIdentity("DHT Node", *node_ca);
+        if (not params.save_identity.empty()) {
+            dht::crypto::saveIdentity(*node_ca, params.save_identity + "_ca", params.privkey_pwd);
+            dht::crypto::saveIdentity(params.id, params.save_identity, params.privkey_pwd);
+        }
+    }
+
+    dht::DhtRunner::Config config {};
+    config.dht_config.node_config.network = params.network;
+    config.dht_config.node_config.maintain_storage = false;
+    config.dht_config.node_config.persist_path = params.persist_path;
+    config.dht_config.id = params.id;
+    config.threaded = true;
+    config.proxy_server = params.proxyclient;
+    config.push_node_id = "dhtnode";
+    config.push_token = params.devicekey;
+    config.peer_discovery = params.peer_discovery;
+    config.peer_publish = params.peer_discovery;
+    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;
+    }
+
+    dht::DhtRunner::Context context {};
+    if (params.log) {
+        if (params.syslog or (params.daemonize and params.logfile.empty()))
+            context.logger = dht::log::getSyslogLogger("dhtnode");
+        else if (not params.logfile.empty())
+            context.logger = dht::log::getFileLogger(params.logfile);
+        else
+            context.logger = dht::log::getStdLogger();
+    }
+    if (context.logger) {
+        context.statusChangedCallback = [logger = *context.logger](dht::NodeStatus status4, dht::NodeStatus status6) {
+            logger.WARN("Connectivity changed: IPv4: %s, IPv6: %s", dht::statusToStr(status4), dht::statusToStr(status6));
+        };
+    }
+    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;
+    else
+        std::cout << "IPv4 port " << port4 << ", IPv6 port " << port6 << std::endl;
+    if (params.id.first)
+        std::cout << "Public key ID " << node.getId() << std::endl;
+}
+
 static const constexpr struct option long_options[] = {
     {"help",                    no_argument      , nullptr, 'h'},
     {"port",                    required_argument, nullptr, 'p'},
@@ -147,6 +212,7 @@ static const constexpr struct option long_options[] = {
     {"daemonize",               no_argument      , nullptr, 'd'},
     {"service",                 no_argument      , nullptr, 's'},
     {"peer-discovery",          no_argument      , nullptr, 'D'},
+    {"no-rate-limit",           no_argument      , nullptr, 'U'},
     {"persist",                 required_argument, nullptr, 'f'},
     {"logfile",                 required_argument, nullptr, 'l'},
     {"syslog",                  no_argument      , nullptr, 'L'},
@@ -168,7 +234,7 @@ parseArgs(int argc, char **argv) {
     int opt;
     std::string privkey;
     std::string proxy_privkey;
-    while ((opt = getopt_long(argc, argv, "hidsvDp:n:b:f:l:", long_options, nullptr)) != -1) {
+    while ((opt = getopt_long(argc, argv, "hidsvDUp:n:b:f:l:", long_options, nullptr)) != -1) {
         switch (opt) {
         case 'p': {
                 int port_arg = atoi(optarg);
@@ -212,6 +278,9 @@ parseArgs(int argc, char **argv) {
         case 'n':
             params.network = strtoul(optarg, nullptr, 0);
             break;
+        case 'U':
+            params.no_rate_limit = true;
+            break;
         case 'b':
             params.bootstrap = dht::splitPort((optarg[0] == '=') ? optarg+1 : optarg);
             if (not params.bootstrap.first.empty() and params.bootstrap.second.empty()) {