value: use move in where

Because there is multiple unifiedpush endpoint (ntfy.sh is one),
we should not pass it as an option to dhtnode, but use the one
provided by the user in the token (from unified push library).

.devcontainer/devcontainer.json

@@ -0,0 +1,12 @@
+{
+	"name": "C++",
+	"build": {
+		"dockerfile": "../docker/DockerfileDepsLlvm",
+	},
+	"runArgs": [ "--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined"],
+	"settings": {},
+	"extensions": [
+		"ms-vscode.cpptools"
+	],
+	"forwardPorts": [4222],
+}

.github/workflows/ccpp.yml

@@ -1,24 +1,20 @@
 name: C/C++ CI
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
-  build:
-
+  build-ubuntu:
+    name: Ubuntu/GCC build
     runs-on: ubuntu-latest
-    
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v3
     - 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
+        autotools-dev autoconf libfmt-dev libhttp-parser-dev libmsgpack-dev libargon2-0-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 \
@@ -32,3 +28,57 @@ jobs:
       run: make
     - name: make check
       run: make check
+
+  build-ubuntu-minimal:
+    name: Ubuntu/GCC minimal build
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: deps
+      run: |
+        sudo apt install libncurses5-dev libreadline-dev nettle-dev \
+        libgnutls28-dev libcppunit-dev libmsgpack-dev libargon2-0-dev
+    - name: cmake
+      run: |
+        mkdir build && cd build
+        cmake .. -DCMAKE_INSTALL_PREFIX=/usr/local -DCMAKE_BUILD_TYPE=Debug \
+                 -DOPENDHT_C=Off -DOPENDHT_TESTS=On -DOPENDHT_PEER_DISCOVERY=Off -DOPENDHT_PYTHON=Off \
+                 -DOPENDHT_TOOLS=On -DOPENDHT_PROXY_SERVER=Off -DOPENDHT_PROXY_CLIENT=Off
+    - name: make
+      run: cd build && make
+
+  build-macos:
+    name: macOS/Clang build
+    runs-on: macos-11
+    steps:
+    - uses: actions/checkout@v3
+    - name: deps
+      run: |
+        brew install msgpack-cxx asio gnutls nettle readline fmt jsoncpp argon2 openssl http-parser cppunit
+
+    - name: restinio
+      run: |
+        mkdir restinio && cd restinio
+        wget https://github.com/aberaud/restinio/archive/bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz
+        ls -l && tar -xzf bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz
+        cd restinio-bbaa034dbcc7555ce67df0f8a1475591a7441733/dev
+        cmake -DCMAKE_INSTALL_PREFIX=/usr/local -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 && sudo make install
+        cd ../../.. && rm -rf restinio
+
+    - name: cmake
+      run: |
+        mkdir build && cd build
+        export PATH="/opt/homebrew/opt/openssl@3/bin:$PATH"
+        export LDFLAGS="-L/usr/local/opt/openssl@3/lib"
+        export CPPFLAGS="-I/usr/local/opt/openssl@3/include"
+        export PKG_CONFIG_PATH="/usr/local/opt/openssl@3/lib/pkgconfig"
+        cmake .. -DCMAKE_INSTALL_PREFIX=/usr/local -DCMAKE_BUILD_TYPE=Debug \
+                 -DOPENDHT_C=On -DOPENDHT_TESTS=On -DOPENDHT_PEER_DISCOVERY=On -DOPENDHT_PYTHON=Off \
+                 -DOPENDHT_TOOLS=On -DOPENDHT_PROXY_SERVER=On -DOPENDHT_PROXY_CLIENT=On
+
+    - name: make
+      run: cd build && make
+

.github/workflows/clang-analyzer.yml

@@ -0,0 +1,35 @@
+name: Clang Static Analysis
+on:
+  push
+jobs:
+  clang-analyzer:
+    name: Clang Static Analysis
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - 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 libargon2-0-dev libasio-dev \
+          llvm llvm-dev clang clang-tools && \
+          sudo apt remove gcc g++
+
+      - name: restinio
+        run: |
+          mkdir restinio && cd restinio \
+          && wget https://github.com/aberaud/restinio/archive/bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+          && ls -l && tar -xzf bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+          && cd restinio-bbaa034dbcc7555ce67df0f8a1475591a7441733/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 && sudo make install \
+          && cd ../../.. && rm -rf restinio
+
+      - name: cmake
+        run: |
+          mkdir build && cd build && \
+          cmake .. -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Debug -DOPENDHT_C=On -DOPENDHT_PEER_DISCOVERY=On -DOPENDHT_PYTHON=Off -DOPENDHT_TOOLS=On -DOPENDHT_PROXY_SERVER=On -DOPENDHT_PROXY_CLIENT=On
+      - name: scan-build
+        run: cd build && scan-build --status-bugs make

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,53 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ "master" ]
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/savoirfairelinux/opendht/opendht-deps:latest
+
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'cpp' ]
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v2
+      with:
+        languages: ${{ matrix.language }}
+        
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v2
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+    #   If the Autobuild fails above, remove it and uncomment the following three lines. 
+    #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+    # - run: |
+    #   echo "Run, Build Application using script"
+    #   ./location_of_script_within_repo/buildscript.sh
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v2

.github/workflows/release-package.yml

@@ -0,0 +1,223 @@
+name: Release actions
+
+on:
+  push:
+    tags:
+    - 'v*'
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME_DEPS: ${{ github.repository }}/opendht-deps
+  IMAGE_NAME: ${{ github.repository }}/opendht
+  IMAGE_NAME_DEPS_LLVM: ${{ github.repository }}/opendht-deps-llvm
+  IMAGE_NAME_LLVM: ${{ github.repository }}/opendht-llvm
+  IMAGE_NAME_DHTNODE: ${{ github.repository }}/dhtnode
+
+jobs:
+  build-and-push-deps-image:
+    name: Dependency Docker image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_DEPS }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: docker/DockerfileDeps
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+  build-and-push-image:
+    name: OpenDHT Docker image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: docker/Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+  build-and-push-deps-image-llvm:
+    name: Dependency Docker image (LLVM)
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_DEPS_LLVM }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: docker/DockerfileDepsLlvm
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+  build-and-push-image-llvm:
+    name: OpenDHT Docker image (LLVM)
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_LLVM }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: docker/DockerfileLlvm
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+  build-and-push-image-dhtnode:
+    name: dhtnode Docker image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_DHTNODE }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: docker/DockerfileDhtnode
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+  build-python-wheel:
+    name: Release and build Python Wheel package
+    runs-on: ubuntu-latest
+    container: ghcr.io/savoirfairelinux/opendht/opendht-deps:latest
+
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: cmake
+        run: |
+          mkdir build && cd build && \
+          cmake .. -DCMAKE_INSTALL_PREFIX=/usr \
+                   -DCMAKE_BUILD_TYPE=Release \
+                   -DOPENDHT_STATIC=Off \
+                   -DOPENDHT_PYTHON=On \
+                   -DOPENDHT_C=Off \
+                   -DOPENDHT_PEER_DISCOVERY=On \
+                   -DOPENDHT_TOOLS=Off \
+                   -DOPENDHT_PROXY_SERVER=On \
+                   -DOPENDHT_PROXY_CLIENT=On
+
+      - name: build
+        run: cd build && make dist
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: opendht-wheels-linux
+          path: build/python/dist/*.whl
+
+      - name: Create Release
+        id: create_release
+        uses: softprops/action-gh-release@v1
+        with:
+          draft: true
+          files: build/python/dist/*.whl

.gitignore

@@ -19,6 +19,9 @@
 *.exe
 *.out
 *.app
+**/dhtnode
+**/dhtchat
+**/dhtscanner
 
 # Autotools
 /ac
@@ -73,3 +76,5 @@ doc/Doxyfile
 
 # build dir
 build
+build_dev
+.DS_Store

.gitmodules

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

.travis.yml

@@ -1,68 +0,0 @@
-dist: xenial
-sudo: required
-
-services:
-  - docker
-
-language: cpp
-
-env:
-  matrix:
-    - OPENDHT_TEST_JOB="opendht.classic"
-    - OPENDHT_TEST_JOB="opendht.llvm"
-    - OPENDHT_TEST_JOB="opendht.proxyserver"
-    - OPENDHT_TEST_JOB="opendht.proxyclient"
-    - OPENDHT_TEST_JOB="opendht.push"
-
-before_install:
-  - |
-    # non llvm builds
-    if [[ "$OPENDHT_TEST_JOB" != *"opendht.llvm"* ]]; then
-      docker pull aberaud/opendht-deps;
-    fi
-
-  - |
-    # classic build
-    if [[ "$OPENDHT_TEST_JOB" == *"opendht.llvm"* ]]; then
-      docker pull aberaud/opendht-deps-llvm
-    fi
-
-script:
-  - |
-    # classic build
-    if [[ "$OPENDHT_TEST_JOB" == *"opendht.classic"* ]]; then
-      docker build -t opendht -f docker/DockerfileTravis .;
-    fi
-
-  - |
-    # proxy builds
-    if [[ "$OPENDHT_TEST_JOB" != *"opendht.llvm"* ]] && [[ "$OPENDHT_TEST_JOB" != *"opendht.classic"* ]]; then
-      docker build -t opendht-proxy -f docker/DockerfileTravisProxy .;
-      options='-DOPENDHT_SANITIZE=On ';
-      if [[ "$OPENDHT_TEST_JOB" == *"opendht.proxyserver"* ]] || [[ "$OPENDHT_TEST_JOB" == *"opendht.push"* ]]; then
-        options+='-DOPENDHT_PROXY_SERVER=ON ';
-      else
-        options+='-DOPENDHT_PROXY_SERVER=OFF ';
-      fi
-      if [[ "$OPENDHT_TEST_JOB" == *"opendht.proxyclient"* ]] || [[ "$OPENDHT_TEST_JOB" == *"opendht.push"* ]]; then
-        options+='-DOPENDHT_PROXY_CLIENT=ON ';
-      else
-        options+='-DOPENDHT_PROXY_CLIENT=OFF ';
-      fi
-      if [[ "$OPENDHT_TEST_JOB" == *"opendht.push"* ]]; then
-        options+='-DOPENDHT_PUSH_NOTIFICATIONS=ON ';
-      else
-        options+='-DOPENDHT_PUSH_NOTIFICATIONS=OFF ';
-      fi
-      docker run opendht-proxy /bin/sh -c "cd /root/opendht && mkdir build && cd build && cmake -DCMAKE_INSTALL_PREFIX=/usr -DOPENDHT_PYTHON=ON -DOPENDHT_LTO=ON -DOPENDHT_TESTS=ON $options .. && make -j8 && ./opendht_unit_tests && make install";
-    fi
-
-  - |
-    # llvm build
-    if [[ "$OPENDHT_TEST_JOB" == *"opendht.llvm"* ]]; then
-      docker build -f docker/DockerfileTravisLlvm .
-    fi
-
-notifications:
-  email:
-      - adrien.beraud@savoirfairelinux.com

.vscode/launch.json

@@ -0,0 +1,54 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "dhtnode",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/build_dev/tools/dhtnode",
+            "args": ["-v", "-p", "4222"],
+            "cwd": "${workspaceFolder}/build_dev",
+            "environment": [],
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ],
+            "preLaunchTask": "build",
+            "linux": {
+                "MIMode": "gdb",
+                "externalConsole": false,
+              },
+              "osx": {
+                "MIMode": "lldb",
+                "externalConsole": true,
+              },
+        },
+        {
+            "name": "tests",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/build_dev/opendht_unit_tests",
+            "cwd": "${workspaceFolder}/build_dev",
+            "environment": [],
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ],
+            "preLaunchTask": "build",
+            "linux": {
+                "MIMode": "gdb",
+                "externalConsole": false,
+            },
+            "osx": {
+                "MIMode": "lldb",
+                "externalConsole": true,
+            },
+        }
+    ]
+}

.vscode/tasks.json

@@ -0,0 +1,46 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "build",
+            "type": "shell",
+            "options": {
+                "cwd": "${workspaceRoot}/build_dev"
+            },
+            "command": "make",
+            "args": ["-j4"],
+            "dependsOn": "cmake"
+        },
+        {
+            "label": "cmake",
+            "type": "shell",
+            "options": {
+                "cwd": "${workspaceRoot}/build_dev"
+            },
+            "command": "cmake",
+            "args": [
+                "${workspaceRoot}",
+                "-DCMAKE_EXPORT_COMPILE_COMMANDS=On",
+                "-DCMAKE_BUILD_TYPE=Debug",
+                "-DOPENDHT_SANITIZE=On",
+                "-DOPENDHT_PROXY_CLIENT=On",
+                "-DOPENDHT_PROXY_SERVER=On",
+                "-DOPENDHT_TESTS=On",
+                "-DOPENDHT_C=On"
+            ],
+            "dependsOn": "builddir"
+        },
+        {
+            "label": "builddir",
+            "type": "shell",
+            "options": {
+                "cwd": "${workspaceRoot}"
+            },
+            "command": "mkdir",
+            "args": [
+                "-p",
+                "${workspaceRoot}/build_dev"
+            ]
+        },
+    ]
+}

CMakeLists.txt

@@ -1,7 +1,20 @@
-cmake_minimum_required (VERSION 3.1)
+cmake_minimum_required (VERSION 3.10..3.20)
+if(POLICY CMP0073)
+  cmake_policy(SET CMP0073 NEW)
+endif()
+if(POLICY CMP0074)
+  cmake_policy(SET CMP0074 NEW)
+endif()
 project (opendht)
+
+include(CMakePackageConfigHelpers)
+include(CMakeDependentOption)
+include(CheckIncludeFileCXX)
+include(FindPkgConfig)
+include(cmake/CheckAtomic.cmake)
+
 set (opendht_VERSION_MAJOR 2)
-set (opendht_VERSION_MINOR 0.0)
+set (opendht_VERSION_MINOR 4.10)
 set (opendht_VERSION ${opendht_VERSION_MAJOR}.${opendht_VERSION_MINOR})
 set (PACKAGE_VERSION ${opendht_VERSION})
 set (VERSION "${opendht_VERSION}")
@@ -13,93 +26,125 @@ 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_SYSTEMD_UNIT_FILE_LOCATION "Where to install systemd unit file")
 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)
+CMAKE_DEPENDENT_OPTION(OPENDHT_HTTP "Build embedded http(s) client" OFF "NOT OPENDHT_PROXY_SERVER;NOT OPENDHT_PROXY_CLIENT" ON)
 option (OPENDHT_PEER_DISCOVERY "Enable multicast peer discovery" ON)
 option (OPENDHT_INDEX "Build DHT indexation feature" OFF)
 option (OPENDHT_TESTS "Add unit tests executable" OFF)
+option (OPENDHT_TESTS_NETWORK "Enable unit tests that require network access" ON)
 option (OPENDHT_C "Build C bindings" OFF)
 
 find_package(Doxygen)
 option (OPENDHT_DOCUMENTATION "Create and install the HTML based API documentation (requires Doxygen)" ${DOXYGEN_FOUND})
 
+# Build flags
+set (CMAKE_CXX_STANDARD 17)
+set (CMAKE_CXX_STANDARD_REQUIRED on)
+
 # Dependencies
+if (NOT HAVE_CXX_ATOMICS_WITHOUT_LIB)
+    link_libraries (atomic)
+endif ()
+
 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)
+if (NOT MSVC)
+    set (THREADS_PREFER_PTHREAD_FLAG TRUE)
+    find_package (Threads)
+    find_package (PkgConfig REQUIRED)
+    find_package (GnuTLS 3.3 REQUIRED)
+    pkg_search_module (Nettle REQUIRED nettle)
+    check_include_file_cxx(msgpack.hpp HAVE_MSGPACKCXX)
+    if (NOT HAVE_MSGPACKCXX)
+        find_package (msgpack REQUIRED)
+    endif()
+    if (OPENDHT_TOOLS)
+        find_package (Readline 6 REQUIRED)
+    endif ()
+    pkg_search_module(argon2 REQUIRED libargon2)
+    pkg_search_module(Jsoncpp jsoncpp)
+    if (Jsoncpp_FOUND)
+        add_definitions(-DOPENDHT_JSONCPP)
+        list (APPEND opendht_SOURCES
+          src/base64.h
+          src/base64.cpp
+        )
     endif()
-endif ()
 
-pkg_search_module(Jsoncpp jsoncpp)
-if (Jsoncpp_FOUND)
-    add_definitions(-DOPENDHT_JSONCPP)
-    list (APPEND opendht_SOURCES
-      src/base64.h
-      src/base64.cpp
-    )
-endif()
+    if (OPENDHT_HTTP OR OPENDHT_PEER_DISCOVERY)
+        find_path(ASIO_INCLUDE_DIR asio.hpp REQUIRED)
+    endif ()
 
-if (OPENDHT_PROXY_SERVER OR OPENDHT_PROXY_CLIENT)
-    find_package(Restinio REQUIRED)
-    if (Restinio_FOUND)
+    if (OPENDHT_HTTP)
+        find_package(Restinio REQUIRED)
         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")
+        if (NOT Jsoncpp_FOUND)
+            message(SEND_ERROR "Jsoncpp is required for DHT proxy support")
         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)
+        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} ${OPENSSL_INCLUDE_DIRS}")
+                include_directories(SYSTEM ${OPENSSL_INCLUDE_DIRS})
+                link_directories (${OPENSSL_LIBRARY_DIRS})
+            else ()
+                message(SEND_ERROR "OpenSSL is required for DHT proxy as specified")
+            endif()
+        endif()
+    else ()
+        set(OPENDHT_PROXY_OPENSSL OFF)
+    endif ()
+else ()
+    set (WIN32_DEP_DIR ${PROJECT_SOURCE_DIR}/../)
+    include_directories(${WIN32_DEP_DIR}/../msvc/include) # SMP gnutls
+    include_directories(${WIN32_DEP_DIR}/argon2/include)
+    include_directories(${WIN32_DEP_DIR}/jsoncpp/include)
+    list (APPEND opendht_SOURCES
+        src/base64.h
+        src/base64.cpp
+    )
+    add_definitions(-DOPENDHT_JSONCPP)
+    include_directories(${WIN32_DEP_DIR}/msgpack-c/include)
+    if (OPENDHT_HTTP OR OPENDHT_PEER_DISCOVERY)
+        include_directories(
+            ${WIN32_DEP_DIR}/asio/asio/include
+            ${WIN32_DEP_DIR}/openssl/include
+            ${WIN32_DEP_DIR}/restinio/dev
+            ${WIN32_DEP_DIR}/fmt/include
+            ${WIN32_DEP_DIR}/http_parser
+        )
+    endif ()
+endif ()
+
+if (OPENDHT_HTTP OR OPENDHT_PEER_DISCOVERY)
     add_definitions(-DASIO_STANDALONE)
 endif()
 
-# Build flags
-set (CMAKE_CXX_STANDARD 14)
-set (CMAKE_CXX_STANDARD_REQUIRED on)
-set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-return-type -Wall -Wextra -Wnon-virtual-dtor -pedantic-errors -fvisibility=hidden")
-if (OPENDHT_SANITIZE)
-    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fstack-protector-strong")
+if (NOT MSVC)
+    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-return-type -Wno-deprecated -Wall -Wextra -Wnon-virtual-dtor -pedantic-errors -fvisibility=hidden")
+    if (OPENDHT_SANITIZE)
+        set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fstack-protector-strong")
+    endif ()
+else ()
+    add_definitions(-D_WINSOCK_DEPRECATED_NO_WARNINGS
+                    -D_CRT_SECURE_NO_WARNINGS
+                    -DWIN32_LEAN_AND_MEAN
+                    -DSTATIC_GETOPT
+                    -DGNUTLS_INTERNAL_BUILD)
+    set(DISABLE_MSC_WARNINGS "/wd4101 /wd4244 /wd4267 /wd4273 /wd4804 /wd4834 /wd4996")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${DISABLE_MSC_WARNINGS}")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
 endif ()
-set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DMSGPACK_DISABLE_LEGACY_NIL -DMSGPACK_DISABLE_LEGACY_CONVERT")
+set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DMSGPACK_NO_BOOST -DMSGPACK_DISABLE_LEGACY_NIL -DMSGPACK_DISABLE_LEGACY_CONVERT")
 
 if (NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE Release)
@@ -110,15 +155,6 @@ if (OPENDHT_LOG)
 else ()
     add_definitions(-DOPENDHT_LOG=false)
 endif()
-if (OPENDHT_LTO)
-    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -flto")
-    if (CMAKE_COMPILER_IS_GNUCC)
-        set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fuse-linker-plugin")
-        set (CMAKE_AR        "gcc-ar")
-        set (CMAKE_NM        "gcc-nm")
-        set (CMAKE_RANLIB    "gcc-ranlib")
-    endif ()
-endif ()
 
 if (MSGPACK_INCLUDE_DIRS)
     include_directories (SYSTEM "${MSGPACK_INCLUDE_DIRS}")
@@ -129,17 +165,18 @@ endif ()
 if (Nettle_INCLUDE_DIRS)
     include_directories (SYSTEM "${Nettle_INCLUDE_DIRS}")
 endif ()
+if (ASIO_INCLUDE_DIR)
+    include_directories (SYSTEM "${ASIO_INCLUDE_DIR}")
+endif ()
 if (Restinio_INCLUDE_DIR)
     include_directories (SYSTEM "${Restinio_INCLUDE_DIR}")
 endif ()
 if (Jsoncpp_INCLUDE_DIRS)
     include_directories (SYSTEM "${Jsoncpp_INCLUDE_DIRS}")
 endif ()
-if (OpenSSL_INCLUDE_DIR)
-    include_directories (SYSTEM "${OpenSSL_INCLUDE_DIR}")
-endif ()
 link_directories (${Nettle_LIBRARY_DIRS})
 link_directories (${Jsoncpp_LIBRARY_DIRS})
+link_directories (${argon2_LIBRARY_DIRS})
 include_directories (
     ./
     include/
@@ -251,7 +288,7 @@ if (OPENDHT_PROXY_CLIENT)
   )
 endif ()
 
-if (OPENDHT_PROXY_SERVER OR OPENDHT_PROXY_CLIENT)
+if (OPENDHT_HTTP)
   if (OPENDHT_PUSH_NOTIFICATIONS)
     message("Using push notification")
     add_definitions(-DOPENDHT_PUSH_NOTIFICATIONS)
@@ -259,46 +296,83 @@ if (OPENDHT_PROXY_SERVER OR OPENDHT_PROXY_CLIENT)
   list (APPEND opendht_HEADERS
     include/opendht/proxy.h
     include/opendht/http.h
+    src/compat/os_cert.h
   )
   list (APPEND opendht_SOURCES
     src/http.cpp
+    src/compat/os_cert.cpp
   )
 endif ()
 
-if(OPENDHT_ARGON2)
-    # make sure argon2 submodule is up to date and initialized
-    message("Initializing Argon2 submodule")
-    execute_process(COMMAND git submodule update --init)
-
-    # add local argon2 files to build
-    list (APPEND opendht_SOURCES
-        argon2/src/argon2.c
-        argon2/src/core.c
-        argon2/src/blake2/blake2b.c
-        argon2/src/thread.c
-        argon2/src/ref.c
-        argon2/src/encoding.c
-    )
-    include_directories(argon2/include/)
-endif()
+if (MSVC)
+    list (APPEND opendht_HEADERS src/compat/msvc/unistd.h)
+endif ()
 
 # Targets
 if (OPENDHT_STATIC)
-    add_library (opendht-static STATIC
-        ${opendht_SOURCES}
-        ${opendht_HEADERS}
-    )
-    set_target_properties (opendht-static PROPERTIES OUTPUT_NAME "opendht")
-    if (OPENDHT_ARGON2)
-        target_include_directories(opendht-static SYSTEM PRIVATE argon2)
-    else ()
+    if (NOT MSVC)
+        add_library (opendht-static STATIC
+            ${opendht_SOURCES}
+            ${opendht_HEADERS}
+        )
+        set_target_properties (opendht-static PROPERTIES OUTPUT_NAME "opendht")
         target_include_directories(opendht-static SYSTEM PRIVATE ${argon2_INCLUDE_DIRS})
-    endif ()
-    target_link_libraries(opendht-static
-        PRIVATE  ${argon2_LIBRARIES}
-        PUBLIC ${CMAKE_THREAD_LIBS_INIT} ${GNUTLS_LIBRARIES} ${Nettle_LIBRARIES}
-               ${Jsoncpp_LIBRARIES} ${FMT_LIBRARY} ${HTTP_PARSER_LIBRARY}
-               ${OPENSSL_LIBRARIES})
+        target_link_libraries(opendht-static
+            PRIVATE ${argon2_LIBRARIES}
+            PUBLIC ${CMAKE_THREAD_LIBS_INIT} ${GNUTLS_LIBRARIES} ${Nettle_STATIC_LIBRARIES}
+                   ${Jsoncpp_STATIC_LIBRARIES} ${FMT_LIBRARY} ${HTTP_PARSER_LIBRARY}
+                   ${OPENSSL_STATIC_LIBRARIES})
+        if (APPLE)
+            target_link_libraries(opendht-static PRIVATE SYSTEM "-framework CoreFoundation" "-framework Security")
+        endif()
+    else ()
+        if (OPENDHT_TOOLS)
+            function (add_obj_lib name libfile)
+                add_library(${name} OBJECT IMPORTED)
+                set_property(TARGET ${name} PROPERTY IMPORTED_OBJECTS ${libfile})
+            endfunction ()
+            add_obj_lib (win32_json ${WIN32_DEP_DIR}/../msvc/lib/x64/lib_json.lib)
+            add_obj_lib (win32_gnutls ${WIN32_DEP_DIR}/../msvc/lib/x64/libgnutls.lib)
+            add_obj_lib (win32_argon2 ${WIN32_DEP_DIR}/argon2/vs2015/Argon2Ref/vs2015/build/Argon2Ref.lib)
+            list (APPEND obj_libs
+                $<TARGET_OBJECTS:win32_json>
+                $<TARGET_OBJECTS:win32_gnutls>
+                $<TARGET_OBJECTS:win32_argon2>
+            )
+            if (OPENDHT_HTTP)
+                add_obj_lib (win32_fmt ${WIN32_DEP_DIR}/fmt/msvc/Release/fmt.lib)
+                add_obj_lib (win32_http_parser ${WIN32_DEP_DIR}/http_parser/x64/Release/http-parser.lib)
+                add_obj_lib (win32_ssl ${WIN32_DEP_DIR}/openssl/libssl_static.lib)
+                add_obj_lib (win32_crypto ${WIN32_DEP_DIR}/openssl/libcrypto_static.lib)
+                list (APPEND obj_libs
+                    $<TARGET_OBJECTS:win32_fmt>
+                    $<TARGET_OBJECTS:win32_http_parser>
+                    $<TARGET_OBJECTS:win32_ssl>
+                    $<TARGET_OBJECTS:win32_crypto>
+                )
+            endif ()
+        else ()
+            list (APPEND win32_Libs
+                ${PROJECT_SOURCE_DIR}/../../msvc/lib/x64/libgnutls.lib
+                ${PROJECT_SOURCE_DIR}/../../msvc/lib/x64/lib_json.lib
+                ${PROJECT_SOURCE_DIR}/../argon2/vs2015/Argon2Ref/vs2015/build/Argon2Ref.lib
+            )
+            list (APPEND win32_Libs
+                ${PROJECT_SOURCE_DIR}/../fmt/msvc/Release/fmt.lib
+                ${PROJECT_SOURCE_DIR}/../http_parser/x64/Release/http-parser.lib
+                ${PROJECT_SOURCE_DIR}/../openssl/libssl.lib
+                ${PROJECT_SOURCE_DIR}/../openssl/libcrypto.lib
+            )
+        endif ()
+        add_library (opendht-static STATIC
+            ${opendht_SOURCES}
+            ${opendht_HEADERS}
+            ${obj_libs}
+        )
+        target_link_libraries(opendht-static PUBLIC ${Win32_STATIC_LIBRARIES} ${Win32_IMPORT_LIBRARIES})
+        set(CMAKE_STATIC_LINKER_FLAGS "${CMAKE_STATIC_LINKER_FLAGS} /ignore:4006")
+        set_target_properties (opendht-static PROPERTIES OUTPUT_NAME "libopendht")
+    endif()
     install (TARGETS opendht-static DESTINATION ${CMAKE_INSTALL_LIBDIR} EXPORT opendht)
 endif ()
 
@@ -310,31 +384,38 @@ if (OPENDHT_SHARED)
     set_target_properties (opendht PROPERTIES IMPORT_SUFFIX "_import.lib")
     set_target_properties (opendht PROPERTIES SOVERSION ${opendht_VERSION_MAJOR} VERSION ${opendht_VERSION})
     target_compile_definitions(opendht PRIVATE OPENDHT_BUILD)
-    if (OPENDHT_ARGON2)
-        target_include_directories(opendht SYSTEM PRIVATE argon2)
-    else ()
-        target_link_libraries(opendht PRIVATE ${argon2_LIBRARIES})
-        target_include_directories(opendht SYSTEM PRIVATE ${argon2_INCLUDE_DIRS})
-    endif ()
+    target_include_directories(opendht SYSTEM PRIVATE ${argon2_INCLUDE_DIRS})
     target_link_libraries(opendht
         PUBLIC ${CMAKE_THREAD_LIBS_INIT} ${OPENSSL_LIBRARIES}
         PRIVATE ${GNUTLS_LIBRARIES} ${Nettle_LIBRARIES}
                 ${Jsoncpp_LIBRARIES}
-                ${FMT_LIBRARY} ${HTTP_PARSER_LIBRARY})
+                ${FMT_LIBRARY} ${HTTP_PARSER_LIBRARY} ${argon2_LIBRARIES})
+    if (APPLE)
+        target_link_libraries(opendht PRIVATE SYSTEM "-framework CoreFoundation" "-framework Security")
+    endif ()
 
     install (TARGETS opendht DESTINATION ${CMAKE_INSTALL_LIBDIR} EXPORT opendht)
 endif ()
 
 if (OPENDHT_C)
-    add_library (opendht-c SHARED
-        c/opendht.cpp
-        c/opendht_c.h
-    )
-    target_compile_definitions(opendht-c PRIVATE OPENDHT_C_BUILD)
     if (OPENDHT_SHARED)
-        target_link_libraries(opendht-c opendht)
-    else ()
-        target_link_libraries(opendht-c opendht-static)
+        add_library (opendht-c SHARED
+            c/opendht.cpp
+            c/opendht_c.h
+        )
+        target_compile_definitions(opendht-c PRIVATE OPENDHT_C_BUILD)
+        target_link_libraries(opendht-c PRIVATE opendht)
+        install (TARGETS opendht-c DESTINATION ${CMAKE_INSTALL_LIBDIR} EXPORT opendht-c)
+    endif ()
+
+    if (OPENDHT_STATIC)
+        add_library (opendht-c-static STATIC
+            c/opendht.cpp
+            c/opendht_c.h
+        )
+        set_target_properties (opendht-c-static PROPERTIES OUTPUT_NAME "opendht-c")
+        target_link_libraries(opendht-c-static PRIVATE opendht-static)
+        install (TARGETS opendht-c-static DESTINATION ${CMAKE_INSTALL_LIBDIR} EXPORT opendht-c-static)
     endif ()
 
     # PkgConfig module
@@ -343,8 +424,8 @@ if (OPENDHT_C)
         opendht-c.pc
         @ONLY
     )
-    install (TARGETS opendht-c DESTINATION ${CMAKE_INSTALL_LIBDIR} EXPORT opendht-c)
     install (FILES ${CMAKE_CURRENT_BINARY_DIR}/opendht-c.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+    install (FILES c/opendht_c.h DESTINATION ${CMAKE_INSTALL_PREFIX}/include/opendht)
 endif ()
 
 if (OPENDHT_TOOLS)
@@ -357,7 +438,6 @@ if (OPENDHT_PYTHON)
 endif ()
 
 # CMake module
-include(CMakePackageConfigHelpers)
 write_basic_package_version_file("${CMAKE_CURRENT_BINARY_DIR}/opendhtConfigVersion.cmake"
   VERSION ${opendht_VERSION}
   COMPATIBILITY AnyNewerVersion
@@ -377,7 +457,7 @@ install (FILES ${CMAKE_CURRENT_BINARY_DIR}/opendhtConfigVersion.cmake DESTINATIO
 
 # Unit tests
 if (OPENDHT_TESTS)
-    FIND_PACKAGE(Cppunit REQUIRED)
+    pkg_search_module(Cppunit REQUIRED cppunit)
     # unit testing
     list (APPEND test_FILES
         tests/infohashtester.h
@@ -391,25 +471,28 @@ if (OPENDHT_TESTS)
         tests/threadpooltester.h
         tests/threadpooltester.cpp
     )
-    if (OPENDHT_PROXY_SERVER AND OPENDHT_PROXY_CLIENT)
-        list (APPEND test_FILES
-            tests/httptester.h
-            tests/httptester.cpp
-            tests/dhtproxytester.h
-            tests/dhtproxytester.cpp
-        )
-    endif()
-    if (OPENDHT_PEER_DISCOVERY)
-        list (APPEND test_FILES
-            tests/peerdiscoverytester.h
-            tests/peerdiscoverytester.cpp
-        )
+    if (OPENDHT_TESTS_NETWORK)
+        if (OPENDHT_PROXY_SERVER AND OPENDHT_PROXY_CLIENT)
+            list (APPEND test_FILES
+                tests/httptester.h
+                tests/httptester.cpp
+                tests/dhtproxytester.h
+                tests/dhtproxytester.cpp
+            )
+        endif()
+        if (OPENDHT_PEER_DISCOVERY)
+            list (APPEND test_FILES
+                tests/peerdiscoverytester.h
+                tests/peerdiscoverytester.cpp
+            )
+        endif()
     endif()
     add_executable(opendht_unit_tests
         tests/tests_runner.cpp
         ${test_FILES}
     )
-    target_include_directories(opendht_unit_tests SYSTEM PRIVATE ${CPPUNIT_INCLUDE_DIRS})
+    target_include_directories(opendht_unit_tests SYSTEM PRIVATE ${Cppunit_INCLUDE_DIR})
+    target_link_directories(opendht_unit_tests PRIVATE ${Cppunit_LIBRARY_DIRS})
     if (OPENDHT_SHARED)
         target_link_libraries(opendht_unit_tests opendht)
     else ()
@@ -417,7 +500,7 @@ if (OPENDHT_TESTS)
     endif ()
     target_link_libraries(opendht_unit_tests
        ${CMAKE_THREAD_LIBS_INIT}
-       ${CPPUNIT_LIBRARIES}
+       ${Cppunit_LIBRARIES}
        ${GNUTLS_LIBRARIES}
        ${Jsoncpp_LIBRARIES}
     )

MSVC/.gitignore

@@ -1,248 +0,0 @@
-## Ignore Visual Studio temporary files, build results, and
-## files generated by popular Visual Studio add-ons.
-
-#output directories
-DebugLib/
-Debug/
-ReleaseLib/
-Release/
-.config/
-# User-specific files
-*.suo
-*.user
-*.userosscache
-*.sln.docstates
-*.VC.VC.opendb
-*.VC.db
-*.db
-
-# User-specific files (MonoDevelop/Xamarin Studio)
-*.userprefs
-
-# Build results
-[Dd]ebug/
-[Dd]ebugPublic/
-[Rr]elease/
-[Rr]eleases/
-x64/
-x86/
-bld/
-[Bb]in/
-[Oo]bj/
-
-# Visual Studio 2015 cache/options directory
-.vs/
-# Uncomment if you have tasks that create the project's static files in wwwroot
-#wwwroot/
-
-# MSTest test Results
-[Tt]est[Rr]esult*/
-[Bb]uild[Ll]og.*
-
-# NUNIT
-*.VisualState.xml
-TestResult.xml
-
-# Build Results of an ATL Project
-[Dd]ebugPS/
-[Rr]eleasePS/
-dlldata.c
-
-# DNX
-project.lock.json
-artifacts/
-
-*_i.c
-*_p.c
-*_i.h
-*.ilk
-*.meta
-*.obj
-*.pch
-*.pdb
-*.pgc
-*.pgd
-*.rsp
-*.sbr
-*.tlb
-*.tli
-*.tlh
-*.tmp
-*.tmp_proj
-*.log
-*.vspscc
-*.vssscc
-.builds
-*.pidb
-*.svclog
-*.scc
-
-# Chutzpah Test files
-_Chutzpah*
-
-# Visual C++ cache files
-ipch/
-*.aps
-*.ncb
-*.opendb
-*.opensdf
-*.sdf
-*.cachefile
-
-# Visual Studio profiler
-*.psess
-*.vsp
-*.vspx
-*.sap
-
-# TFS 2012 Local Workspace
-$tf/
-
-# Guidance Automation Toolkit
-*.gpState
-
-# ReSharper is a .NET coding add-in
-_ReSharper*/
-*.[Rr]e[Ss]harper
-*.DotSettings.user
-
-# JustCode is a .NET coding add-in
-.JustCode
-
-# TeamCity is a build add-in
-_TeamCity*
-
-# DotCover is a Code Coverage Tool
-*.dotCover
-
-# NCrunch
-_NCrunch_*
-.*crunch*.local.xml
-nCrunchTemp_*
-
-# MightyMoose
-*.mm.*
-AutoTest.Net/
-
-# Web workbench (sass)
-.sass-cache/
-
-# Installshield output folder
-[Ee]xpress/
-
-# DocProject is a documentation generator add-in
-DocProject/buildhelp/
-DocProject/Help/*.HxT
-DocProject/Help/*.HxC
-DocProject/Help/*.hhc
-DocProject/Help/*.hhk
-DocProject/Help/*.hhp
-DocProject/Help/Html2
-DocProject/Help/html
-
-# Click-Once directory
-publish/
-
-# Publish Web Output
-*.[Pp]ublish.xml
-*.azurePubxml
-# TODO: Comment the next line if you want to checkin your web deploy settings 
-# but database connection strings (with potential passwords) will be unencrypted
-*.pubxml
-*.publishproj
-
-# NuGet Packages
-*.nupkg
-# The packages folder can be ignored because of Package Restore
-**/packages/*
-# except build/, which is used as an MSBuild target.
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Makefile.am

@@ -4,6 +4,10 @@ SUBDIRS =
 
 SUBDIRS += src
 
+if ENABLE_C
+SUBDIRS += c
+endif
+
 if ENABLE_TOOLS
 SUBDIRS += tools
 endif

README.md

@@ -4,7 +4,7 @@
     <a id="user-content-opendht-" class="anchor" href="/savoirfairelinux/opendht/blob/master/README.md#opendht-" aria-hidden="true"></a>OpenDHT
 </h1>
 
-A lightweight C++14 Distributed Hash Table implementation.
+A lightweight C++17 Distributed Hash Table implementation.
 
 OpenDHT provides an easy to use distributed in-memory data store.
 Every node in the network can read and write values to the store.
@@ -14,9 +14,9 @@ Values are distributed over the network, with redundancy.
  * High resilience to network disruption
  * Public key cryptography layer providing optional data signature and encryption (using GnuTLS)
  * IPv4 and IPv6 support
- * Clean and powerful C++14 map API
- * Python 3 bindings
- * REST API
+ * Clean and powerful **C++17** map API
+ * Bindings for **C, Rust & Python 3**
+ * REST API with optional HTTP client+server with push notification support
 
 ## Documentation
 See the wiki: <https://github.com/savoirfairelinux/opendht/wiki>
@@ -27,7 +27,7 @@ Build instructions: <https://github.com/savoirfairelinux/opendht/wiki/Build-the-
 
 #### How-to build a simple client app
 ```bash
-g++ main.cpp -std=c++14 -lopendht -lgnutls
+g++ main.cpp -std=c++17 -lopendht
 ```
 
 ## Examples
@@ -51,7 +51,7 @@ int main()
 
     // Join the network through any running node,
     // here using a known bootstrap node.
-    node.bootstrap("bootstrap.ring.cx", "4222");
+    node.bootstrap("bootstrap.jami.net", "4222");
 
     // put some data on the dht
     std::vector<uint8_t> some_data(5, 10);
@@ -82,7 +82,7 @@ node.run()
 
 # Join the network through any running node,
 # here using a known bootstrap node.
-node.bootstrap("bootstrap.ring.cx", "4222")
+node.bootstrap("bootstrap.jami.net", "4222")
 
 # blocking call (provide callback arguments to make the call non-blocking)
 node.put(dht.InfoHash.get("unique_key"), dht.Value(b'some binary data'))
@@ -98,15 +98,15 @@ for r in results:
 - Nettle 2.4+, a GnuTLS dependency for crypto.
 - (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, 2017, 2019
+- Build tested with GCC 7+ (GNU/Linux, Windows with MinGW), Clang/LLVM (GNU/Linux, Android, macOS, iOS).
+- Build tested with Microsoft Visual Studio 2017, 2019, 2022
 
 ## Contact
 
-IRC: join us on Freenode at [`#opendht`](https://webchat.freenode.net/?channels=%23opendht).
+IRC: join us on Libera.chat at [`#opendht`](https://web.libera.chat/#opendht).
 
 ## License
-Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 
 OpenDHT is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
 

autogen.sh

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

c/Makefile.am

@@ -0,0 +1,15 @@
+lib_LTLIBRARIES = libopendht-c.la
+noinst_HEADERS = opendht_c.h
+
+AM_CPPFLAGS = -DOPENDHT_C_BUILD -isystem @top_srcdir@/include @JsonCpp_CFLAGS@ @MsgPack_CFLAGS@
+if OPENDHT_SHARED
+AM_CPPFLAGS += -Dopendht_c_EXPORTS
+endif
+
+libopendht_c_la_LIBADD = $(LIBOBJS) ../src/.libs/libopendht.la
+
+libopendht_c_la_SOURCES  = \
+        opendht.cpp
+
+nobase_include_HEADERS = \
+        opendht_c.h

c/opendht.cpp

@@ -1,5 +1,25 @@
+/*
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
+ *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
 #include "opendht_c.h"
-#include "opendht.h"
+
+#include <opendht.h>
+#include <opendht/log.h>
 
 using ValueSp = std::shared_ptr<dht::Value>;
 using PrivkeySp = std::shared_ptr<dht::crypto::PrivateKey>;
@@ -10,6 +30,13 @@ using CertSp = std::shared_ptr<dht::crypto::Certificate>;
 extern "C" {
 #endif
 
+#include <errno.h>
+
+const char* dht_version()
+{
+    return dht::version();
+}
+
 // dht::InfoHash
 
 inline dht_infohash dht_infohash_to_c(const dht::InfoHash& h) {
@@ -49,7 +76,11 @@ bool dht_infohash_is_zero(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)));
+    *h = dht_infohash_to_c(dht::InfoHash(std::string_view(dat, HASH_LEN*2)));
+}
+
+void dht_infohash_from_hex_null(dht_infohash* h, const char* dat) {
+    *h = dht_infohash_to_c(dht::InfoHash(std::string_view(dat)));
 }
 
 const char* dht_pkid_print(const dht_pkid* h) {
@@ -97,10 +128,20 @@ const char* dht_value_get_user_type(const dht_value* data) {
     return vsp->user_type.c_str();
 }
 
+void dht_value_set_user_type(dht_value* data, const char* user_type) {
+    (*reinterpret_cast<ValueSp*>(data))->user_type = user_type;
+}
+
 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)));
 }
 
+dht_value* dht_value_new_from_string(const char* str) {
+    ValueSp value = std::make_shared<dht::Value>((const uint8_t*)str, strlen(str));
+    value->user_type = "text/plain";
+    return reinterpret_cast<dht_value*>(new ValueSp(std::move(value)));
+}
+
 dht_value* dht_value_ref(const dht_value* v) {
     return reinterpret_cast<dht_value*>(new ValueSp(*reinterpret_cast<const ValueSp*>(v)));
 }
@@ -124,7 +165,7 @@ void dht_publickey_delete(dht_publickey* 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);
+    return pkey->pack((uint8_t*)out, outlen);
 }
 
 dht_infohash dht_publickey_get_id(const dht_publickey* pk) {
@@ -144,9 +185,13 @@ bool dht_publickey_check_signature(const dht_publickey* pk, const char* data, si
 
 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;
+    try {
+        auto rdata = std::make_unique<dht::Blob>();
+        *rdata = pkey->encrypt((const uint8_t*)data, data_size);
+        return (dht_blob*)rdata.release();
+    } catch (...) {
+        return nullptr;
+    }
 }
 
 // dht::crypto::PrivateKey
@@ -173,7 +218,18 @@ int dht_privatekey_export(const dht_privatekey* k, char* out, size_t* out_size,
 
 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())));
+    return reinterpret_cast<dht_publickey*>(new PubkeySp(key->getSharedPublicKey()));
+}
+
+dht_blob* dht_privatekey_decrypt(const dht_privatekey* k, const char* data, size_t data_size) {
+    const auto& key = *reinterpret_cast<const PrivkeySp*>(k);
+    try {
+        auto rdata = std::make_unique<dht::Blob>();
+        *rdata = key->decrypt((const uint8_t*)data, data_size);
+        return (dht_blob*)rdata.release();
+    } catch (...) {
+        return nullptr;
+    }
 }
 
 void dht_privatekey_delete(dht_privatekey* pk) {
@@ -247,7 +303,7 @@ void dht_runner_config_default(dht_runner_config* config) {
 }
 
 // dht::DhtRunner
-dht_runner* dht_runner_new() {
+dht_runner* dht_runner_new(void) {
     return reinterpret_cast<dht_runner*>(new dht::DhtRunner);
 }
 
@@ -255,39 +311,62 @@ void dht_runner_delete(dht_runner* runner) {
     delete reinterpret_cast<dht::DhtRunner*>(runner);
 }
 
-void dht_runner_run(dht_runner* r, in_port_t port) {
+int dht_runner_run(dht_runner* r, in_port_t port) {
     auto runner = reinterpret_cast<dht::DhtRunner*>(r);
-    runner->run(port, {}, true);
+    try {
+        runner->run(port, {}, true);
+    } catch(...) {
+        return ENOTCONN;
+    }
+    return 0;
 }
 
-void dht_runner_run_config(dht_runner* r, in_port_t port, const dht_runner_config* conf) {
+int 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{};
+    try {
+        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.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);
+        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);
+        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.push_topic = conf->push_topic ? std::string(conf->push_topic) : std::string{};
+        config.push_platform = conf->push_platform ? std::string(conf->push_platform) : std::string{};
+        config.peer_discovery = conf->peer_discovery;
+        config.peer_publish = conf->peer_publish;
+
+        dht::DhtRunner::Context context;
+        if (conf->log) {
+            context.logger = dht::log::getStdLogger();
+        }
+        runner->run(port, config, std::move(context));
+    } catch(...) {
+        return ENOTCONN;
+    }
+    return 0;
 }
 
-void dht_runner_ping(dht_runner* r, struct sockaddr* addr, socklen_t addr_len) {
+void dht_runner_ping(dht_runner* r, struct sockaddr* addr, socklen_t addr_len, dht_done_cb done_cb, void* cb_user_data) {
     auto runner = reinterpret_cast<dht::DhtRunner*>(r);
-    runner->bootstrap(dht::SockAddr(addr, addr_len));
+    if (done_cb) {
+        runner->bootstrap(dht::SockAddr(addr, addr_len), [done_cb, cb_user_data](bool ok){
+            done_cb(ok, cb_user_data);
+        });
+    } else {
+        runner->bootstrap(dht::SockAddr(addr, addr_len));
+    }
 }
 
 void dht_runner_bootstrap(dht_runner* r, const char* host, const char* service) {
@@ -326,8 +405,11 @@ dht_op_token* dht_runner_listen(dht_runner* r, const dht_infohash* h, dht_value_
     auto runner = reinterpret_cast<dht::DhtRunner*>(r);
     auto hash = reinterpret_cast<const dht::InfoHash*>(h);
     auto fret = new std::future<size_t>;
-    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) {
+    *fret = runner->listen(*hash, [
+        cb,
+        cb_user_data,
+        guard = done_cb ? std::make_shared<ScopeGuardCb>(done_cb, cb_user_data) : std::shared_ptr<ScopeGuardCb>{}
+    ](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;
@@ -393,6 +475,17 @@ void dht_runner_shutdown(dht_runner* r, dht_shutdown_cb done_cb, void* cb_user_d
     });
 }
 
+bool dht_runner_is_running(const dht_runner* r) {
+    if (not r) return false;
+    auto runner = reinterpret_cast<const dht::DhtRunner*>(r);
+    return runner->isRunning();
+}
+
+in_port_t dht_runner_get_bound_port(const dht_runner* r, sa_family_t af) {
+    auto runner = reinterpret_cast<const dht::DhtRunner*>(r);
+    return runner->getBoundPort(af);
+}
+
 dht_infohash dht_runner_get_node_id(const dht_runner* r) {
     auto runner = reinterpret_cast<const dht::DhtRunner*>(r);
     dht_infohash ret;
@@ -413,14 +506,8 @@ struct sockaddr** dht_runner_get_public_address(const dht_runner* r) {
     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;
-        }
-    }
+    for (size_t i=0; i<addrs.size(); i++)
+        ret[i] = addrs[i].release();
     ret[addrs.size()] = nullptr;
     return ret;
 }

c/opendht_c.h

@@ -1,10 +1,28 @@
+/*
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
+ *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
 #pragma once
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include "def.h"
+#include <opendht/def.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <stdbool.h>
@@ -18,6 +36,8 @@ struct OPENDHT_C_PUBLIC dht_data_view {
 };
 typedef struct dht_data_view dht_data_view;
 
+OPENDHT_C_PUBLIC const char* dht_version(void);
+
 // dht::Blob
 struct OPENDHT_C_PUBLIC dht_blob;
 typedef struct dht_blob dht_blob;
@@ -30,6 +50,7 @@ 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_from_hex_null(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);
@@ -58,6 +79,7 @@ OPENDHT_C_PUBLIC dht_privatekey* dht_privatekey_generate(unsigned key_length_bit
 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 dht_blob* dht_privatekey_decrypt(const dht_privatekey*, const char* data, size_t data_size);
 OPENDHT_C_PUBLIC void dht_privatekey_delete(dht_privatekey*);
 
 // dht::crypto::Certificate
@@ -82,6 +104,7 @@ 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_new_from_string(const char* str);
 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);
@@ -89,6 +112,7 @@ 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);
+OPENDHT_C_PUBLIC void dht_value_set_user_type(dht_value* data, const char* user_type);
 
 // callbacks
 typedef bool (*dht_get_cb)(const dht_value* value, void* user_data);
@@ -122,10 +146,13 @@ struct OPENDHT_PUBLIC dht_runner_config {
     const char* proxy_server;
     const char* push_node_id;
     const char* push_token;
+    const char* push_topic;
+    const char* push_platform;
     bool peer_discovery;
     bool peer_publish;
     dht_certificate* server_ca;
     dht_identity client_identity;
+    bool log;
 };
 typedef struct dht_runner_config dht_runner_config;
 OPENDHT_C_PUBLIC void dht_runner_config_default(dht_runner_config* config);
@@ -133,11 +160,13 @@ 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 dht_runner* dht_runner_new(void);
 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);
+/* Returns 0 on success, standard error code on failure */
+OPENDHT_C_PUBLIC int dht_runner_run(dht_runner* runner, in_port_t port);
+/* Returns 0 on success, standard error code on failure */
+OPENDHT_C_PUBLIC int 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, dht_done_cb done_cb, void* cb_user_data);
 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, dht_shutdown_cb done_cb, void* cb_user_data);
@@ -149,6 +178,9 @@ OPENDHT_C_PUBLIC void dht_runner_cancel_put(dht_runner* runner, const dht_infoha
 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 bool dht_runner_is_running(const dht_runner* runner);
+OPENDHT_C_PUBLIC in_port_t dht_runner_get_bound_port(const dht_runner* runner, sa_family_t af);
+/** Returns null-terminated array that must be freed after use as well as each element */
 OPENDHT_C_PUBLIC struct sockaddr** dht_runner_get_public_address(const dht_runner* runner);
 
 #ifdef __cplusplus

cmake/CheckAtomic.cmake

@@ -0,0 +1,103 @@
+# atomic builtins are required for threading support.
+
+INCLUDE(CheckCXXSourceCompiles)
+INCLUDE(CheckLibraryExists)
+INCLUDE("${CMAKE_CURRENT_LIST_DIR}/DetermineGCCCompatible.cmake")
+
+# Sometimes linking against libatomic is required for atomic ops, if
+# the platform doesn't support lock-free atomics.
+
+function(check_working_cxx_atomics varname)
+  set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
+  set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -std=c++11")
+  CHECK_CXX_SOURCE_COMPILES("
+#include <atomic>
+std::atomic<int> x;
+std::atomic<short> y;
+std::atomic<char> z;
+int main() {
+  ++z;
+  ++y;
+  return ++x;
+}
+" ${varname})
+  set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS})
+endfunction(check_working_cxx_atomics)
+
+function(check_working_cxx_atomics64 varname)
+  set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
+  set(CMAKE_REQUIRED_FLAGS "-std=c++11 ${CMAKE_REQUIRED_FLAGS}")
+  CHECK_CXX_SOURCE_COMPILES("
+#include <atomic>
+#include <cstdint>
+std::atomic<uint64_t> x (0);
+int main() {
+  uint64_t i = x.load(std::memory_order_relaxed);
+  (void)i;
+  return 0;
+}
+" ${varname})
+  set(CMAKE_REQUIRED_FLAGS ${OLD_CMAKE_REQUIRED_FLAGS})
+endfunction(check_working_cxx_atomics64)
+
+
+# Check for (non-64-bit) atomic operations.
+if(MSVC)
+  set(HAVE_CXX_ATOMICS_WITHOUT_LIB True)
+elseif(LLVM_COMPILER_IS_GCC_COMPATIBLE OR CMAKE_CXX_COMPILER_ID MATCHES "XL")
+  # First check if atomics work without the library.
+  check_working_cxx_atomics(HAVE_CXX_ATOMICS_WITHOUT_LIB)
+  # If not, check if the library exists, and atomics work with it.
+  if(NOT HAVE_CXX_ATOMICS_WITHOUT_LIB)
+    list(APPEND CMAKE_REQUIRED_LIBRARIES "atomic")
+    check_working_cxx_atomics(HAVE_CXX_ATOMICS_WITH_LIB)
+    if (NOT HAVE_CXX_ATOMICS_WITH_LIB)
+      message(FATAL_ERROR "Host compiler must support std::atomic!")
+    endif()
+  endif()
+endif()
+
+# Check for 64 bit atomic operations.
+if(MSVC)
+  set(HAVE_CXX_ATOMICS64_WITHOUT_LIB True)
+elseif(LLVM_COMPILER_IS_GCC_COMPATIBLE OR CMAKE_CXX_COMPILER_ID MATCHES "XL")
+  # First check if atomics work without the library.
+  check_working_cxx_atomics64(HAVE_CXX_ATOMICS64_WITHOUT_LIB)
+  # If not, check if the library exists, and atomics work with it.
+  if(NOT HAVE_CXX_ATOMICS64_WITHOUT_LIB)
+    list(APPEND CMAKE_REQUIRED_LIBRARIES "atomic")
+    check_working_cxx_atomics64(HAVE_CXX_ATOMICS64_WITH_LIB)
+    if (NOT HAVE_CXX_ATOMICS64_WITH_LIB)
+      message(FATAL_ERROR "Host compiler must support 64-bit std::atomic!")
+    endif()
+  endif()
+endif()
+
+## TODO: This define is only used for the legacy atomic operations in
+## llvm's Atomic.h, which should be replaced.  Other code simply
+## assumes C++11 <atomic> works.
+CHECK_CXX_SOURCE_COMPILES("
+#ifdef _MSC_VER
+#include <windows.h>
+#endif
+int main() {
+#ifdef _MSC_VER
+        volatile LONG val = 1;
+        MemoryBarrier();
+        InterlockedCompareExchange(&val, 0, 1);
+        InterlockedIncrement(&val);
+        InterlockedDecrement(&val);
+#else
+        volatile unsigned long val = 1;
+        __sync_synchronize();
+        __sync_val_compare_and_swap(&val, 1, 0);
+        __sync_add_and_fetch(&val, 1);
+        __sync_sub_and_fetch(&val, 1);
+#endif
+        return 0;
+      }
+" LLVM_HAS_ATOMICS)
+
+if( NOT LLVM_HAS_ATOMICS )
+  message(STATUS "Warning: LLVM will be built thread-unsafe because atomic builtins are missing")
+endif()

cmake/DetermineGCCCompatible.cmake

@@ -0,0 +1,13 @@
+# Determine if the compiler has GCC-compatible command-line syntax.
+
+if(NOT DEFINED LLVM_COMPILER_IS_GCC_COMPATIBLE)
+  if(CMAKE_COMPILER_IS_GNUCXX)
+    set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
+  elseif( MSVC )
+    set(LLVM_COMPILER_IS_GCC_COMPATIBLE OFF)
+  elseif( "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
+    set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
+  elseif( "${CMAKE_CXX_COMPILER_ID}" MATCHES "Intel" )
+    set(LLVM_COMPILER_IS_GCC_COMPATIBLE ON)
+  endif()
+endif()

cmake/FindCppunit.cmake

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

cmake/FindMsgpack.cmake

@@ -1,64 +0,0 @@
-# - Try to find msgpack
-# Once done this will define
-#  MSGPACK_FOUND - System has msgpack
-#  MSGPACK_INCLUDE_DIRS - The msgpack include directories
-#  MSGPACK_LIBRARIES - The libraries needed to use msgpack
-
-if(NOT MSGPACK_USE_BUNDLED)
-  find_package(PkgConfig)
-  if (PKG_CONFIG_FOUND)
-    pkg_search_module(PC_MSGPACK QUIET
-      msgpackc>=${Msgpack_FIND_VERSION}
-      msgpack>=${Msgpack_FIND_VERSION})
-  endif()
-else()
-  set(PC_MSGPACK_INCLUDEDIR)
-  set(PC_MSGPACK_INCLUDE_DIRS)
-  set(PC_MSGPACK_LIBDIR)
-  set(PC_MSGPACK_LIBRARY_DIRS)
-  set(LIMIT_SEARCH NO_DEFAULT_PATH)
-endif()
-
-set(MSGPACK_DEFINITIONS ${PC_MSGPACK_CFLAGS_OTHER})
-
-find_path(MSGPACK_INCLUDE_DIR msgpack/version_master.h
-  HINTS ${PC_MSGPACK_INCLUDEDIR} ${PC_MSGPACK_INCLUDE_DIRS}
-  ${LIMIT_SEARCH})
-
-if(MSGPACK_INCLUDE_DIR)
-  file(READ ${MSGPACK_INCLUDE_DIR}/msgpack/version_master.h msgpack_version_h)
-  string(REGEX REPLACE ".*MSGPACK_VERSION_MAJOR +([0-9]+).*" "\\1" MSGPACK_VERSION_MAJOR "${msgpack_version_h}")
-  string(REGEX REPLACE ".*MSGPACK_VERSION_MINOR +([0-9]+).*" "\\1" MSGPACK_VERSION_MINOR "${msgpack_version_h}")
-  string(REGEX REPLACE ".*MSGPACK_VERSION_REVISION +([0-9]+).*" "\\1" MSGPACK_VERSION_REVISION "${msgpack_version_h}")
-  set(MSGPACK_VERSION_STRING "${MSGPACK_VERSION_MAJOR}.${MSGPACK_VERSION_MINOR}.${MSGPACK_VERSION_REVISION}")
-else()
-  set(MSGPACK_VERSION_STRING)
-endif()
-
-# If we're asked to use static linkage, add libmsgpack{,c}.a as a preferred library name.
-if(MSGPACK_USE_STATIC)
-  list(APPEND MSGPACK_NAMES
-    "${CMAKE_STATIC_LIBRARY_PREFIX}msgpackc${CMAKE_STATIC_LIBRARY_SUFFIX}"
-    "${CMAKE_STATIC_LIBRARY_PREFIX}msgpack${CMAKE_STATIC_LIBRARY_SUFFIX}")
-endif()
-
-list(APPEND MSGPACK_NAMES msgpackc msgpack)
-
-find_library(MSGPACK_LIBRARY NAMES ${MSGPACK_NAMES}
-  # Check each directory for all names to avoid using headers/libraries from
-  # different places.
-  NAMES_PER_DIR
-  HINTS ${PC_MSGPACK_LIBDIR} ${PC_MSGPACK_LIBRARY_DIRS}
-  ${LIMIT_SEARCH})
-
-mark_as_advanced(MSGPACK_INCLUDE_DIR MSGPACK_LIBRARY)
-
-set(MSGPACK_LIBRARIES ${MSGPACK_LIBRARY})
-set(MSGPACK_INCLUDE_DIRS ${MSGPACK_INCLUDE_DIR})
-
-include(FindPackageHandleStandardArgs)
-# handle the QUIETLY and REQUIRED arguments and set MSGPACK_FOUND to TRUE
-# if all listed variables are TRUE
-find_package_handle_standard_args(Msgpack
-  REQUIRED_VARS MSGPACK_LIBRARY MSGPACK_INCLUDE_DIR
-  VERSION_VAR MSGPACK_VERSION_STRING)

configure.ac

@@ -1,7 +1,7 @@
 dnl define macros
 m4_define([opendht_major_version], 2)
-m4_define([opendht_minor_version], 0)
-m4_define([opendht_patch_version], 0)
+m4_define([opendht_minor_version], 4)
+m4_define([opendht_patch_version], 10)
 m4_define([opendht_version],
 		  [opendht_major_version.opendht_minor_version.opendht_patch_version])
 
@@ -18,18 +18,33 @@ AC_SUBST(OPENDHT_PATCH_VERSION, opendht_patch_version)
 
 AC_ARG_ENABLE([debug], AS_HELP_STRING([--enable-debug], [Build in debug mode, adds stricter warnings, disables optimization]))
 AS_IF([test "x$enable_debug" = "xyes"],
-      [CXXFLAGS="${CXXFLAGS} -g -Wno-return-type -Wall -Wextra -Wnon-virtual-dtor -O0 -pedantic-errors"],
-      [CXXFLAGS="${CXXFLAGS} -O3 -pedantic-errors"])
+      [CXXFLAGS="${CXXFLAGS} -g -Og -Wno-return-type -Wall -Wextra -Wnon-virtual-dtor -Wno-deprecated -pedantic-errors"],
+      [CXXFLAGS="${CXXFLAGS} -O3 -Wno-deprecated -pedantic-errors -fvisibility=hidden"])
+
+CPPFLAGS+=" -DOPENDHT_BUILD"
+AM_CONDITIONAL([OPENDHT_SHARED], [test "x$enable_shared" != xno])
+AM_COND_IF(OPENDHT_SHARED, [
+  CPPFLAGS+=" -Dopendht_EXPORTS"
+])
 
-AC_PROG_CXX
 AM_PROG_AR
+LT_INIT()
+LT_LANG(C++)
+AC_LANG(C++)
+AC_PROG_CXX
+AX_CXX_COMPILE_STDCXX(17,[noext],[mandatory])
 
 dnl Check for logs
 AC_ARG_ENABLE([logs], [AS_HELP_STRING([--disable-logs], [Disable DHT logs])])
-AS_IF([test "x$enable_logs" != "xno"], [
-	AC_DEFINE([OPENDHT_LOG], [true], [Define if DHT logs are enabled])
-], [
-	AC_DEFINE([OPENDHT_LOG], [false], [Define if DHT logs are enabled])
+AS_IF([test "x$enable_logs" != "xno"], [], [
+	AC_DEFINE([OPENDHT_LOG], [false], [Define if DHT logs are disabled])
+])
+
+dnl Check for C binding
+AC_ARG_ENABLE([c], [AS_HELP_STRING([--disable-c], [Disable DHT C binding])])
+AM_CONDITIONAL(ENABLE_C, test x$enable_c != "xno")
+AM_COND_IF(ENABLE_C, [
+	AC_DEFINE([OPENDHT_C], [], [Define if DHT C biding is enabled])
 ])
 
 dnl Check for indexation
@@ -99,11 +114,6 @@ AM_CONDITIONAL(WIN32, [test "x$SYS" = "xmingw32"])
 AS_IF([test "x$SYS" = "xandroid"],
       [], [LDFLAGS="${LDFLAGS} -lpthread"])
 
-LT_INIT()
-LT_LANG(C++)
-
-AX_CXX_COMPILE_STDCXX(14,[noext],[mandatory])
-
 PKG_PROG_PKG_CONFIG()
 
 AC_ARG_ENABLE([proxy_server], AS_HELP_STRING([--enable-proxy-server], [Enable proxy server ability]), proxy_server=yes, proxy_server=no)
@@ -122,8 +132,8 @@ AC_ARG_ENABLE([proxy_client], AS_HELP_STRING([--enable-proxy-client], [Enable pr
 AM_CONDITIONAL(ENABLE_PROXY_CLIENT, test x$proxy_client == xyes)
 
 AC_ARG_ENABLE([tests], AS_HELP_STRING([--enable-tests], [Enable tests]), build_tests=yes, build_tests=no)
-AM_CONDITIONAL(ENABLE_TESTS, test x$build_tests == xyes)
-AM_COND_IF([ENABLE_TESTS], [
+AM_CONDITIONAL(ENABLE_TESTS, test "x$build_tests" == xyes)
+AS_IF([test "x$build_tests" == xyes], [
 	PKG_CHECK_MODULES([CppUnit], [cppunit >= 1.12])
 ])
 
@@ -131,7 +141,11 @@ AM_CONDITIONAL(PROXY_CLIENT_OR_SERVER, test x$proxy_client == xyes || test x$pro
 
 PKG_CHECK_MODULES([Nettle], [nettle >= 2.4])
 PKG_CHECK_MODULES([GnuTLS], [gnutls >= 3.3])
-PKG_CHECK_MODULES([MsgPack], [msgpack >= 1.2])
+AC_CHECK_HEADERS([msgpack.hpp], [], [
+  PKG_CHECK_MODULES([MsgPack], [msgpack >= 1.2])
+])
+PKG_CHECK_MODULES([Argon2], [libargon2])
+AC_SUBST(argon2_lib, [", libargon2"])
 
 AC_ARG_WITH([jsoncpp], AS_HELP_STRING([--without-jsoncpp], [Build without JsonCpp support]))
 AS_IF([test "x$with_jsoncpp" != "xno"],
@@ -140,6 +154,7 @@ AS_IF([test "x$with_jsoncpp" != "xno"],
 AS_IF([test "x$have_jsoncpp" = "xyes"], [
     AC_MSG_NOTICE([Using JsonCpp])
     CPPFLAGS+=" -DOPENDHT_JSONCPP"
+    AC_SUBST(jsoncpp_lib, [", jsoncpp"])
 ], [
     AC_MSG_NOTICE([Not using JsonCpp])
     AM_COND_IF(PROXY_CLIENT_OR_SERVER, AC_MSG_ERROR(["JsonCpp is required for proxy/push notification support"]))
@@ -151,20 +166,13 @@ AS_IF([test "x$with_openssl" != "xno"],
       [have_openssl=no])
 AS_IF([test "x$have_openssl" = "xyes"], [
     AC_MSG_NOTICE([Using OpenSSL])
+    AC_SUBST(openssl_lib, [", openssl"])
 ], [
     AC_MSG_NOTICE([Not using OpenSSL])
 ])
 
-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$with_http_parser_fork" = "xyes"],[
-    AC_MSG_NOTICE([Using http_parser fork])
-    AC_DEFINE([OPENDHT_PROXY_HTTP_PARSER_FORK], [], [Define if using http parser fork])
-], [
-    AC_MSG_NOTICE([Not using http_parser fork])
-])
-
 AM_COND_IF([PROXY_CLIENT_OR_SERVER], [
-    AC_CHECK_HEADERS([asio.hpp], exit,, AC_MSG_ERROR([Missing Asio headers files]))
+    AC_CHECK_HEADERS([asio.hpp],, AC_MSG_ERROR([Missing Asio headers files]))
     CXXFLAGS="${CXXFLAGS} -DASIO_STANDALONE"
     PKG_CHECK_MODULES([Fmt], [fmt >= 5.3.0], [have_fmt=yes], [have_fmt=no])
     AS_IF([test "x$have_fmt" = "xyes"], [
@@ -175,31 +183,11 @@ AM_COND_IF([PROXY_CLIENT_OR_SERVER], [
     # http_parser has no pkgconfig, instead we check with:
     AC_CHECK_LIB(http_parser, exit,, AC_MSG_ERROR([Missing HttpParser library files]))
     AC_CHECK_HEADERS([http_parser.h], [http_parser_headers=yes; break;])
+    AC_SUBST(http_parser_lib, ["-lhttp_parser"])
     AS_IF([test "x$http_parser_headers" != "xyes"], AC_MSG_ERROR([Missing HttpParser headers files]))
 ])
 
-CXXFLAGS="${CXXFLAGS} -DMSGPACK_DISABLE_LEGACY_NIL -DMSGPACK_DISABLE_LEGACY_CONVERT"
-
-dnl Check for Argon2
-AC_ARG_WITH([argon2], AS_HELP_STRING([--without-argon2], [Use included Argon2]))
-AS_IF([test "x$with_argon2" != "xno"],
-			[PKG_CHECK_MODULES([Argon2], [libargon2], [have_argon2=yes], [have_argon2=no])],
-			[have_argon2=no])
-AS_IF([test "x$have_argon2" = "xyes"], [
-  AC_MSG_NOTICE([Using system Argon2])
-  AC_SUBST(argon2_lib, [", libargon2"])
-], [
-		AS_IF([test "x$with_argon2" = "xyes"], [
-				AC_MSG_ERROR([Argon2 requested but not found])
-		],[
-				AC_MSG_NOTICE([Using included Argon2])
-				AC_SUBST(Argon2_CFLAGS, "-I\${top_srcdir}/argon2/src -I\${top_srcdir}/argon2/include")
-				AC_SUBST(Argon2_LIBS, "libargon2.la")
-				AC_SUBST(Argon2_LDFLAGS, "-L\${abs_top_srcdir}/argon2/src/.libs")
-		])
-])
-
-AM_CONDITIONAL([WITH_INCLUDED_ARGON2], [test "x$have_argon2" = "xno"])
+CXXFLAGS="${CXXFLAGS} -DMSGPACK_NO_BOOST -DMSGPACK_DISABLE_LEGACY_NIL -DMSGPACK_DISABLE_LEGACY_CONVERT"
 
 AC_ARG_ENABLE([tools], AS_HELP_STRING([--disable-tools],[Disable tools (CLI DHT node)]),,build_tools=yes)
 AM_CONDITIONAL(ENABLE_TOOLS, test x$build_tools == xyes)
@@ -222,6 +210,7 @@ AC_SUBST(PROJECT_BINARY_DIR, "../src/.libs")
 
 AC_CONFIG_FILES([Makefile
                  src/Makefile
+                 c/Makefile
                  tools/Makefile
                  python/Makefile
                  python/setup.py

docker/Dockerfile

@@ -1,6 +1,17 @@
-FROM aberaud/opendht-deps
-MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+FROM ghcr.io/savoirfairelinux/opendht/opendht-deps:latest
+LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
+LABEL org.opencontainers.image.source https://github.com/savoirfairelinux/opendht
+
 RUN git clone https://github.com/savoirfairelinux/opendht.git \
 	&& cd opendht && mkdir build && cd build \
-	&& cmake .. -DCMAKE_INSTALL_PREFIX=/usr -DOPENDHT_PYTHON=On -DOPENDHT_LTO=On && make -j8 && make install \
+	&& cmake .. -DCMAKE_INSTALL_PREFIX=/usr \
+				-DCMAKE_INTERPROCEDURAL_OPTIMIZATION=On \
+				-DOPENDHT_C=On \
+				-DOPENDHT_PEER_DISCOVERY=On \
+				-DOPENDHT_PYTHON=On \
+				-DOPENDHT_TOOLS=On \
+				-DOPENDHT_PROXY_SERVER=On \
+				-DOPENDHT_PROXY_CLIENT=On \
+				-DOPENDHT_SYSTEMD=On \
+	&& make -j8 && make install \
 	&& cd ../.. && rm -rf opendht

docker/DockerfileBionic

@@ -1,13 +1,16 @@
-FROM docker.pkg.github.com/savoirfairelinux/opendht/opendht-deps-bionic:2.0.0
-MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+FROM ghcr.io/savoirfairelinux/opendht/opendht-deps-bionic:latest
+LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
+LABEL org.opencontainers.image.source https://github.com/savoirfairelinux/opendht
 
 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 \
+				-DCMAKE_INTERPROCEDURAL_OPTIMIZATION=On \
+				-DOPENDHT_C=On \
+				-DOPENDHT_PEER_DISCOVERY=On \
+				-DOPENDHT_PYTHON=On \
+				-DOPENDHT_TOOLS=On \
+				-DOPENDHT_PROXY_SERVER=On \
+				-DOPENDHT_PROXY_CLIENT=On \
+	&& make -j8 && make install \
 	&& cd ../.. && rm -rf opendht

docker/DockerfileDeps

@@ -1,56 +1,28 @@
-FROM ubuntu:16.04
-MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+FROM ubuntu:22.04
+LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
+LABEL org.opencontainers.image.source https://github.com/savoirfairelinux/opendht
+
 RUN apt-get update && apt-get install -y \
-        build-essential cmake git wget libncurses5-dev libreadline-dev nettle-dev \
-        libgnutls28-dev libuv1-dev cython3 python3-dev python3-setuptools libcppunit-dev libjsoncpp-dev \
-        autotools-dev autoconf libssl-dev \
-    && apt-get clean
+        dialog apt-utils \
+    && apt-get clean \
+    && echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
 
-RUN echo "*** Installing libfmt ***" \
-    && wget https://github.com/fmtlib/fmt/archive/5.3.0.tar.gz \
-    && tar -xzf 5.3.0.tar.gz && cd fmt-5.3.0/ \
-    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_SHARED_LIBS=On -DFMT_TEST=Off -DFMT_DOC=Off . \
-    && make -j8 && make install \
-    && cd ../ && rm -rf fmt*
-
-# libhttp-parser-dev is 2.1-2 which is too old
-RUN echo "*** Building nodejs/http_parser dependency ***" \
-    && wget https://github.com/nodejs/http-parser/archive/v2.9.2.tar.gz \
-    && tar xvf v2.9.2.tar.gz && cd http-parser-2.9.2/ \
-    && PREFIX=/usr make -j8 install \
-    && cd ../ && rm -rf http-parser*
-
-# libasio-dev (1.10.6-3) is too old
-RUN echo "** Building a recent version of asio ***" \
-    && wget https://github.com/aberaud/asio/archive/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 apt-get update && apt-get install -y \
+        build-essential pkg-config cmake git wget \
+        libtool autotools-dev autoconf \
+        cython3 python3-dev python3-setuptools python3-build python3-virtualenv \
+        libncurses5-dev libreadline-dev nettle-dev libcppunit-dev \
+        libgnutls28-dev libuv1-dev libjsoncpp-dev libargon2-dev \
+        libssl-dev libfmt-dev libhttp-parser-dev libasio-dev libmsgpack-dev \
+    && apt-get clean && rm -rf /var/lib/apt/lists/* /var/cache/apt/*
 
 RUN echo "*** Downloading RESTinio ***" \
     && mkdir restinio && cd restinio \
-    && wget https://github.com/aberaud/restinio/archive/a7a10e419d9089c5b8ee63f5e3098c892f22fae4.tar.gz \
-    && ls -l && tar -xzf a7a10e419d9089c5b8ee63f5e3098c892f22fae4.tar.gz \
-    && cd restinio-a7a10e419d9089c5b8ee63f5e3098c892f22fae4/dev \
+    && wget https://github.com/aberaud/restinio/archive/bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+    && ls -l && tar -xzf bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+    && cd restinio-bbaa034dbcc7555ce67df0f8a1475591a7441733/dev \
     && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=OFF -DRESTINIO_SAMPLE=OFF \
              -DRESTINIO_INSTALL_SAMPLES=OFF -DRESTINIO_BENCH=OFF -DRESTINIO_INSTALL_BENCHES=OFF \
              -DRESTINIO_FIND_DEPS=ON -DRESTINIO_ALLOW_SOBJECTIZER=Off -DRESTINIO_USE_BOOST_ASIO=none . \
     && make -j8 && make install \
-    && cd ../../ && rm -rf restinio*
-
-
-# build restbed from sources
-RUN git clone --recursive https://github.com/corvusoft/restbed.git \
-	&& cd restbed && mkdir build && cd build \
-	&& cmake -DBUILD_TESTS=NO -DBUILD_EXAMPLES=NO -DBUILD_SSL=NO -DBUILD_SHARED=YES -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_LIBDIR=lib .. \
-	&& make -j8 install \
-	&& cd .. && rm -rf restbed
-
-#build msgpack from source
-RUN wget https://github.com/msgpack/msgpack-c/releases/download/cpp-2.1.5/msgpack-2.1.5.tar.gz \
-    && tar -xzf msgpack-2.1.5.tar.gz \
-    && cd msgpack-2.1.5 && mkdir build && cd build \
-    && cmake -DMSGPACK_CXX11=ON -DMSGPACK_BUILD_EXAMPLES=OFF -DCMAKE_INSTALL_PREFIX=/usr .. \
-    && make -j8 && make install \
-    && cd ../.. && rm -rf msgpack-2.1.5 msgpack-2.1.5.tar.gz
+    && cd ../../.. && rm -rf restinio

docker/DockerfileDepsBionic

@@ -1,17 +1,21 @@
 FROM ubuntu:18.04
-MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
+LABEL org.opencontainers.image.source https://github.com/savoirfairelinux/opendht
 
 RUN echo "APT::Acquire::Retries \"3\";" > /etc/apt/apt.conf.d/80-retries
 RUN apt-get update && apt-get install -y \
-        apt-transport-https build-essential cmake git wget libncurses5-dev libreadline-dev nettle-dev \
+        apt-transport-https build-essential pkg-config git wget libncurses5-dev libreadline-dev nettle-dev \
         libgnutls28-dev libuv1-dev cython3 python3-dev python3-setuptools libcppunit-dev libjsoncpp-dev \
-        autotools-dev autoconf libfmt-dev libhttp-parser-dev libmsgpack-dev \
-    && apt-get clean
+        libargon2-0-dev \
+        autotools-dev autoconf libfmt-dev libhttp-parser-dev libmsgpack-dev libssl-dev python3-pip \
+    && apt-get clean && rm -rf /var/lib/apt/lists/* /var/cache/apt/*
+
+RUN pip3 install --upgrade cmake
 
 # libasio-dev (1.10) is too old
 RUN echo "** Building a recent version of asio ***" \
-    && wget https://github.com/aberaud/asio/archive/b2b7a1c166390459e1c169c8ae9ef3234b361e3f.tar.gz \
-    && tar -xvf b2b7a1c166390459e1c169c8ae9ef3234b361e3f.tar.gz && cd asio-b2b7a1c166390459e1c169c8ae9ef3234b361e3f/asio \
+    && wget https://github.com/aberaud/asio/archive/a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571.tar.gz \
+    && tar -xvf a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571.tar.gz && cd asio-a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571/asio \
     && ./autogen.sh && ./configure --prefix=/usr --without-boost --disable-examples --disable-tests  \
     && make install \
     && cd ../../ && rm -rf asio*

docker/DockerfileDepsFocal

@@ -0,0 +1,28 @@
+FROM ubuntu:20.04
+LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
+LABEL org.opencontainers.image.source https://github.com/savoirfairelinux/opendht
+
+RUN apt-get update && apt-get install -y \
+        dialog apt-utils \
+    && apt-get clean \
+    && echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
+
+RUN apt-get update && apt-get install -y \
+        build-essential pkg-config cmake git wget \
+        libtool autotools-dev autoconf \
+        cython3 python3-dev python3-setuptools \
+        libncurses5-dev libreadline-dev nettle-dev libcppunit-dev \
+        libgnutls28-dev libuv1-dev libjsoncpp-dev libargon2-dev \
+        libssl-dev libfmt-dev libhttp-parser-dev libasio-dev libmsgpack-dev \
+    && apt-get clean && rm -rf /var/lib/apt/lists/* /var/cache/apt/*
+
+RUN echo "*** Downloading RESTinio ***" \
+    && mkdir restinio && cd restinio \
+    && wget https://github.com/aberaud/restinio/archive/e0a261dd8488246a3cb8bbb3ea781ea5139c3c94.tar.gz \
+    && ls -l && tar -xzf e0a261dd8488246a3cb8bbb3ea781ea5139c3c94.tar.gz \
+    && cd restinio-e0a261dd8488246a3cb8bbb3ea781ea5139c3c94/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

@@ -1,62 +1,32 @@
-FROM ubuntu:16.04
-MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+FROM ubuntu:22.04
+LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
+LABEL org.opencontainers.image.source https://github.com/savoirfairelinux/opendht
+
+RUN apt-get update && apt-get install -y \
+        dialog apt-utils \
+    && apt-get clean \
+    && echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
+
 RUN apt-get update \
-    && apt-get install -y llvm llvm-dev clang make cmake git wget libncurses5-dev libreadline-dev \
+    && apt-get install -y llvm llvm-dev lldb clang gdb make cmake pkg-config \
+       libtool git wget libncurses5-dev libreadline-dev \
        nettle-dev libgnutls28-dev libuv1-dev libmsgpack-dev libjsoncpp-dev cython3 python3-dev \
-       python3-setuptools libcppunit-dev python3-pip \
-       autotools-dev autoconf libssl-dev \
-    && apt-get remove -y gcc g++ && apt-get autoremove -y && apt-get clean
+       python3-setuptools libcppunit-dev python3-pip python3-build python3-virtualenv \
+       autotools-dev autoconf libssl-dev libargon2-dev \
+       libfmt-dev libhttp-parser-dev libasio-dev \
+    && apt-get remove -y gcc g++ && apt-get autoremove -y \
+    && apt-get clean && rm -rf /var/lib/apt/lists/* /var/cache/apt/*
 
 ENV CC cc
 ENV CXX c++
 
-RUN echo "*** Installing libfmt ***" \
-    && wget https://github.com/fmtlib/fmt/archive/5.3.0.tar.gz \
-    && tar -xzf 5.3.0.tar.gz && cd fmt-5.3.0/ \
-    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_SHARED_LIBS=On -DFMT_TEST=Off -DFMT_DOC=Off . \
-    && make -j8 && make install \
-    && cd ../ && rm -rf fmt*
-
-# libhttp-parser-dev is 2.1-2 which is too old
-RUN echo "*** Building nodejs/http_parser dependency ***" \
-    && wget https://github.com/nodejs/http-parser/archive/v2.9.2.tar.gz \
-    && tar xvf v2.9.2.tar.gz && cd http-parser-2.9.2/ \
-    && PREFIX=/usr make -j8 install \
-    && cd ../ && rm -rf http-parser*
-
-# libasio-dev (1.10.6-3) is too old
-RUN echo "** Building a recent version of asio ***" \
-    && wget https://github.com/aberaud/asio/archive/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/aberaud/restinio/archive/a7a10e419d9089c5b8ee63f5e3098c892f22fae4.tar.gz \
-    && ls -l && tar -xzf a7a10e419d9089c5b8ee63f5e3098c892f22fae4.tar.gz \
-    && cd restinio-a7a10e419d9089c5b8ee63f5e3098c892f22fae4/dev \
+    && wget https://github.com/aberaud/restinio/archive/bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+    && ls -l && tar -xzf bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+    && cd restinio-bbaa034dbcc7555ce67df0f8a1475591a7441733/dev \
     && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=OFF -DRESTINIO_SAMPLE=OFF \
              -DRESTINIO_INSTALL_SAMPLES=OFF -DRESTINIO_BENCH=OFF -DRESTINIO_INSTALL_BENCHES=OFF \
              -DRESTINIO_FIND_DEPS=ON -DRESTINIO_ALLOW_SOBJECTIZER=Off -DRESTINIO_USE_BOOST_ASIO=none . \
     && make -j8 && make install \
     && cd ../../ && rm -rf restinio*
-
-# build restbed from sources
-RUN git clone --recursive https://github.com/corvusoft/restbed.git \
-	&& cd restbed && mkdir build && cd build \
-	&& cmake -DBUILD_TESTS=NO -DBUILD_EXAMPLES=NO -DBUILD_SSL=NO -DBUILD_SHARED=YES -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_INSTALL_LIBDIR=lib .. \
-	&& make -j8 install \
-	&& cd .. && rm -rf restbed
-
-#build msgpack from source
-RUN wget https://github.com/msgpack/msgpack-c/releases/download/cpp-2.1.5/msgpack-2.1.5.tar.gz \
-    && tar -xzf msgpack-2.1.5.tar.gz \
-    && cd msgpack-2.1.5 && mkdir build && cd build \
-    && cmake -DMSGPACK_CXX11=ON -DMSGPACK_BUILD_EXAMPLES=OFF -DCMAKE_INSTALL_PREFIX=/usr .. \
-    && make -j8 && make install \
-    && cd ../.. && rm -rf msgpack-2.1.5 msgpack-2.1.5.tar.gz

docker/DockerfileDhtnode

@@ -0,0 +1,4 @@
+FROM ghcr.io/savoirfairelinux/opendht/opendht:latest
+CMD ["dhtnode", "-b", "bootstrap.jami.net", "-p", "4222", "--proxyserver", "8080"]
+EXPOSE 4222/udp
+EXPOSE 8080/tcp

docker/DockerfileFocal

@@ -0,0 +1,16 @@
+FROM ghcr.io/savoirfairelinux/opendht/opendht-deps-bionic:latest
+LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
+LABEL org.opencontainers.image.source https://github.com/savoirfairelinux/opendht
+
+RUN git clone https://github.com/savoirfairelinux/opendht.git \
+	&& cd opendht && mkdir build && cd build \
+	&& cmake .. -DCMAKE_INSTALL_PREFIX=/usr \
+				-DCMAKE_INTERPROCEDURAL_OPTIMIZATION=On \
+				-DOPENDHT_C=On \
+				-DOPENDHT_PEER_DISCOVERY=On \
+				-DOPENDHT_PYTHON=On \
+				-DOPENDHT_TOOLS=On \
+				-DOPENDHT_PROXY_SERVER=On \
+				-DOPENDHT_PROXY_CLIENT=On \
+	&& make -j8 && make install \
+	&& cd ../.. && rm -rf opendht

docker/DockerfileLlvm

@@ -0,0 +1,17 @@
+FROM ghcr.io/savoirfairelinux/opendht/opendht-deps-llvm:latest
+LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
+LABEL org.opencontainers.image.source https://github.com/savoirfairelinux/opendht
+
+RUN git clone https://github.com/savoirfairelinux/opendht.git \
+	&& cd opendht && mkdir build && cd build \
+	&& cmake .. -DCMAKE_INSTALL_PREFIX=/usr \
+				-DCMAKE_INTERPROCEDURAL_OPTIMIZATION=On \
+				-DOPENDHT_C=On \
+				-DOPENDHT_PEER_DISCOVERY=On \
+				-DOPENDHT_PYTHON=On \
+				-DOPENDHT_TOOLS=On \
+				-DOPENDHT_PROXY_SERVER=On \
+				-DOPENDHT_PROXY_CLIENT=On \
+				-DOPENDHT_SYSTEMD=On \
+	&& make -j8 && make install \
+	&& cd ../.. && rm -rf opendht

docker/DockerfileTravis

@@ -1,7 +0,0 @@
-FROM aberaud/opendht-deps
-MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
-
-COPY . /root/opendht
-RUN cd /root/opendht && mkdir build && cd build \
-	&& cmake -DCMAKE_INSTALL_PREFIX=/usr -DOPENDHT_PYTHON=On -DOPENDHT_LTO=On -DOPENDHT_TESTS=ON ..  \
-	&& make -j8 && ./opendht_unit_tests && make install

docker/DockerfileTravisLlvm

@@ -1,7 +0,0 @@
-FROM aberaud/opendht-deps-llvm
-MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
-
-COPY . /root/opendht
-RUN cd /root/opendht && mkdir build && cd build \
-	&& cmake -DCMAKE_INSTALL_PREFIX=/usr -DOPENDHT_PYTHON=On -DOPENDHT_TESTS=ON .. \
-	&& make -j8 && ./opendht_unit_tests && make install

docker/DockerfileTravisProxy

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

include/opendht.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify

include/opendht/callbacks.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
@@ -26,6 +26,7 @@
 #include <vector>
 #include <memory>
 #include <functional>
+#include <string>
 
 #ifdef OPENDHT_JSONCPP
 #include <json/json.h>
@@ -57,6 +58,8 @@ struct OPENDHT_PUBLIC NodeStats {
              cached_nodes {0},
              incoming_nodes {0};
     unsigned table_depth {0};
+    unsigned searches {0};
+    unsigned node_cache_size {0};
     unsigned getKnownNodes() const { return good_nodes + dubious_nodes; }
     unsigned long getNetworkSizeEstimation() const { return 8 * std::exp2(table_depth); }
     std::string toString() const;
@@ -70,7 +73,7 @@ struct OPENDHT_PUBLIC NodeStats {
     explicit NodeStats(const Json::Value& v);
 #endif
 
-    MSGPACK_DEFINE_MAP(good_nodes, dubious_nodes, cached_nodes, incoming_nodes, table_depth)
+    MSGPACK_DEFINE_MAP(good_nodes, dubious_nodes, cached_nodes, incoming_nodes, table_depth, searches, node_cache_size)
 };
 
 struct OPENDHT_PUBLIC NodeInfo {
@@ -79,6 +82,10 @@ struct OPENDHT_PUBLIC NodeInfo {
     NodeStats ipv4 {};
     NodeStats ipv6 {};
     size_t ongoing_ops {0};
+    size_t storage_values {0};
+    size_t storage_size {0};
+    in_port_t bound4 {0};
+    in_port_t bound6 {0};
 
 #ifdef OPENDHT_JSONCPP
     /**
@@ -115,11 +122,27 @@ struct OPENDHT_PUBLIC Config {
     /** If set, the dht will load its state from this file on start and save its state in this file on shutdown */
     std::string persist_path {};
 
-    /** If non-0, overrides the default global rate-limit.-1 means no limit. */
+    /** If non-0, overrides the default global rate-limit. -1 means no limit. */
     ssize_t max_req_per_sec {0};
 
     /** If non-0, overrides the default per-IP address rate-limit. -1 means no limit. */
     ssize_t max_peer_req_per_sec {0};
+
+    /* If non-0, overrides the default maximum number of searches. -1 means no limit.  */
+    ssize_t max_searches {0};
+
+    /* If non-0, overrides the default maximum store size. -1 means no limit.  */
+    ssize_t max_store_size {0};
+
+    /* If non-0, overrides the default maximum store key count. -1 means no limit.  */
+    ssize_t max_store_keys {0};
+
+    /**
+     * Use appropriate bahavior for a public IP, stable node:
+     *   - No connectivity change triggered when a search fails
+     *   - Larger listen refresh time
+     */
+    bool public_stable {false};
 };
 
 /**
@@ -129,6 +152,12 @@ struct OPENDHT_PUBLIC SecureDhtConfig
 {
     Config node_config {};
     crypto::Identity id {};
+
+    /**
+     * Cache all encountered public keys and certificates,
+     * for use by the certificate store, putEncrypted and putSigned
+     */
+    bool cert_cache_all {false};
 };
 
 static constexpr size_t DEFAULT_STORAGE_LIMIT {1024 * 1024 * 64};
@@ -140,6 +169,7 @@ using GetCallback = std::function<bool(const std::vector<std::shared_ptr<Value>>
 using ValueCallback = std::function<bool(const std::vector<std::shared_ptr<Value>>& values, bool expired)>;
 using GetCallbackSimple = std::function<bool(std::shared_ptr<Value> value)>;
 using ShutdownCallback = std::function<void()>;
+using IdentityAnnouncedCb = std::function<void(bool)>;
 
 using CertificateStoreQuery = std::function<std::vector<std::shared_ptr<crypto::Certificate>>(const InfoHash& pk_id)>;
 
@@ -154,13 +184,13 @@ typedef bool (*FilterRaw)(const Value&, void *user_data);
 
 using DoneCallbackSimple = std::function<void(bool success)>;
 
-OPENDHT_PUBLIC GetCallbackSimple bindGetCb(const GetCallbackRaw& raw_cb, void* user_data);
-OPENDHT_PUBLIC GetCallback bindGetCb(const GetCallbackSimple& cb);
-OPENDHT_PUBLIC ValueCallback bindValueCb(const ValueCallbackRaw& raw_cb, void* user_data);
-OPENDHT_PUBLIC ShutdownCallback bindShutdownCb(const ShutdownCallbackRaw& shutdown_cb_raw, void* user_data);
+OPENDHT_PUBLIC GetCallbackSimple bindGetCb(GetCallbackRaw raw_cb, void* user_data);
+OPENDHT_PUBLIC GetCallback bindGetCb(GetCallbackSimple cb);
+OPENDHT_PUBLIC ValueCallback bindValueCb(ValueCallbackRaw raw_cb, void* user_data);
+OPENDHT_PUBLIC ShutdownCallback bindShutdownCb(ShutdownCallbackRaw shutdown_cb_raw, void* user_data);
 OPENDHT_PUBLIC DoneCallback bindDoneCb(DoneCallbackSimple donecb);
-OPENDHT_PUBLIC DoneCallback bindDoneCb(const DoneCallbackRaw& raw_cb, void* user_data);
-OPENDHT_PUBLIC DoneCallbackSimple bindDoneCbSimple(const DoneCallbackSimpleRaw& raw_cb, void* user_data);
-OPENDHT_PUBLIC Value::Filter bindFilterRaw(const FilterRaw& raw_filter, void* user_data);
+OPENDHT_PUBLIC DoneCallback bindDoneCb(DoneCallbackRaw raw_cb, void* user_data);
+OPENDHT_PUBLIC DoneCallbackSimple bindDoneCbSimple(DoneCallbackSimpleRaw raw_cb, void* user_data);
+OPENDHT_PUBLIC Value::Filter bindFilterRaw(FilterRaw raw_filter, void* user_data);
 
 }

include/opendht/crypto.h

@@ -1,6 +1,7 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *           Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -26,10 +27,14 @@ extern "C" {
 #include <gnutls/gnutls.h>
 #include <gnutls/abstract.h>
 #include <gnutls/x509.h>
+#include <gnutls/ocsp.h>
 }
 
 #include <vector>
 #include <memory>
+#include <atomic>
+#include <mutex>
+#include <string_view>
 
 #ifdef _WIN32
 #include <iso646.h>
@@ -78,9 +83,12 @@ struct OPENDHT_PUBLIC PublicKey
      * Takes ownership of an existing gnutls_pubkey.
      */
     PublicKey(gnutls_pubkey_t k) : pk(k) {}
+
+    /** Import public key from serialized data */
     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(std::string_view pk) : PublicKey((const uint8_t*)pk.data(), pk.size()) {}
+    PublicKey(PublicKey&& o) noexcept : pk(o.pk) { o.pk = nullptr; }
 
     ~PublicKey();
     explicit operator bool() const { return pk; }
@@ -96,24 +104,27 @@ struct OPENDHT_PUBLIC PublicKey
     /**
      * Get public key fingerprint
      */
-    InfoHash getId() const;
+   const InfoHash& getId() const;
 
     /**
      * Get public key long fingerprint
      */
-    PkId getLongId() const;
+    const PkId& getLongId() const;
 
     bool checkSignature(const uint8_t* data, size_t data_len, const uint8_t* signature, size_t signature_len) const;
-    bool checkSignature(const Blob& data, const Blob& signature) const {
+    inline bool checkSignature(const Blob& data, const Blob& signature) const {
         return checkSignature(data.data(), data.size(), signature.data(), signature.size());
     }
 
     Blob encrypt(const uint8_t* data, size_t data_len) const;
-    Blob encrypt(const Blob& data) const {
+    inline Blob encrypt(const Blob& data) const {
         return encrypt(data.data(), data.size());
     }
-
+    inline Blob encrypt(std::string_view data) const {
+        return encrypt((const uint8_t*)data.data(), data.size());
+    }
     void pack(Blob& b) const;
+    int pack(uint8_t* out, size_t* out_len) const;
     void unpack(const uint8_t* dat, size_t dat_size);
 
     std::string toString() const;
@@ -127,12 +138,17 @@ struct OPENDHT_PUBLIC PublicKey
         p.pack_bin_body((const char*)b.data(), b.size());
     }
 
-    void msgpack_unpack(msgpack::object o);
+    void msgpack_unpack(const msgpack::object& o);
 
     gnutls_digest_algorithm_t getPreferredDigest() const;
 
     gnutls_pubkey_t pk {nullptr};
 private:
+    mutable InfoHash cachedId_ {};
+    mutable PkId cachedLongId_ {};
+    mutable std::atomic_bool idCached_ {false};
+    mutable std::atomic_bool longIdCached_ {false};
+
     PublicKey(const PublicKey&) = delete;
     PublicKey& operator=(const PublicKey&) = delete;
     void encryptBloc(const uint8_t* src, size_t src_size, uint8_t* dst, size_t dst_size) const;
@@ -155,11 +171,15 @@ struct OPENDHT_PUBLIC PrivateKey
     PrivateKey& operator=(PrivateKey&& o) noexcept;
 
     PrivateKey(const uint8_t* src, size_t src_size, const char* password = nullptr);
-    PrivateKey(const Blob& src, const std::string& password = {}) : PrivateKey(src.data(), src.size(), password.data()) {}
+    PrivateKey(const Blob& src, const std::string& password = {}) : PrivateKey(src.data(), src.size(), password.c_str()) {}
+    PrivateKey(std::string_view src, const std::string& password = {}) : PrivateKey((const uint8_t*)src.data(), src.size(), password.c_str()) {}
+
     ~PrivateKey();
     explicit operator bool() const { return key; }
 
-    PublicKey getPublicKey() const;
+    const PublicKey& getPublicKey() const;
+    const std::shared_ptr<PublicKey>& getSharedPublicKey() const;
+
     int serialize(uint8_t* out, size_t* out_len, const std::string& password = {}) const;
     Blob serialize(const std::string& password = {}) const;
 
@@ -167,14 +187,17 @@ struct OPENDHT_PUBLIC PrivateKey
      * Sign the provided binary object.
      * @returns the signature data.
      */
-    Blob sign(const Blob&) const;
+    Blob sign(const uint8_t* data, size_t data_len) const;
+    inline Blob sign(std::string_view dat) const { return sign((const uint8_t*)dat.data(), dat.size()); }
+    inline Blob sign(const Blob& dat) const { return sign(dat.data(), dat.size()); }
 
     /**
      * Try to decrypt the provided cypher text.
      * In case of failure a CryptoException is thrown.
      * @returns the decrypted data.
      */
-    Blob decrypt(const Blob& cypher) const;
+    Blob decrypt(const uint8_t* cypher, size_t cypher_len) const;
+    Blob decrypt(const Blob& cypher) const { return decrypt(cypher.data(), cypher.size()); }
 
     /**
      * Generate a new RSA key pair
@@ -192,10 +215,10 @@ private:
     PrivateKey& operator=(const PrivateKey&) = delete;
     Blob decryptBloc(const uint8_t* src, size_t src_size) const;
 
-    //friend dht::crypto::Identity dht::crypto::generateIdentity(const std::string&, dht::crypto::Identity, unsigned key_length);
+    mutable std::mutex publicKeyMutex_ {};
+    mutable std::shared_ptr<PublicKey> publicKey_ {};
 };
 
-
 class OPENDHT_PUBLIC RevocationList
 {
     using clock = std::chrono::system_clock;
@@ -225,7 +248,7 @@ public:
         p.pack_bin_body((const char*)b.data(), b.size());
     }
 
-    void msgpack_unpack(msgpack::object o);
+    void msgpack_unpack(const msgpack::object& o);
 
     void revoke(const Certificate& crt, time_point t = time_point::min());
 
@@ -278,6 +301,7 @@ class OPENDHT_PUBLIC CertificateRequest {
 public:
     CertificateRequest();
     CertificateRequest(const uint8_t* data, size_t size);
+    CertificateRequest(std::string_view src) : CertificateRequest((const uint8_t*)src.data(), src.size()) {}
     CertificateRequest(const Blob& data) : CertificateRequest(data.data(), data.size()) {}
 
     CertificateRequest(CertificateRequest&& o) noexcept : request(std::move(o.request)) {
@@ -308,6 +332,56 @@ private:
     gnutls_x509_crq_t request {nullptr};
 };
 
+class OPENDHT_PUBLIC OcspRequest
+{
+public:
+    OcspRequest(gnutls_ocsp_req_t r) : request(r) {}
+    OcspRequest(const uint8_t* dat_ptr, size_t dat_size);
+    OcspRequest(std::string_view dat): OcspRequest((const uint8_t*)dat.data(), dat.size()) {}
+    ~OcspRequest();
+
+    /*
+     * Get OCSP Request in readable format.
+     */
+    std::string toString(const bool compact = true) const;
+
+    Blob pack() const;
+    Blob getNonce() const;
+private:
+    gnutls_ocsp_req_t request;
+};
+
+class OPENDHT_PUBLIC OcspResponse
+{
+public:
+    OcspResponse(const uint8_t* dat_ptr, size_t dat_size);
+    OcspResponse(std::string_view response) : OcspResponse((const uint8_t*)response.data(), response.size()) {}
+    ~OcspResponse();
+
+    Blob pack() const;
+    /*
+     * Get OCSP Response in readable format.
+     */
+    std::string toString(const bool compact = true) const;
+
+    /*
+     * Get OCSP response certificate status.
+     * Return certificate status.
+     * http://www.gnu.org/software/gnutls/reference/gnutls-ocsp.html#gnutls-ocsp-cert-status-t
+     */
+    gnutls_ocsp_cert_status_t getCertificateStatus() const;
+
+    /*
+     * Verify OCSP response and return OCSP status.
+     * Throws CryptoException in case of error in the response.
+     * http://www.gnu.org/software/gnutls/reference/gnutls-ocsp.html#gnutls-ocsp-verify-reason-t
+     */
+    gnutls_ocsp_cert_status_t verifyDirect(const Certificate& crt, const Blob& nonce);
+
+private:
+    gnutls_ocsp_resp_t response;
+};
+
 struct OPENDHT_PUBLIC Certificate {
     Certificate() noexcept {}
 
@@ -323,12 +397,10 @@ struct OPENDHT_PUBLIC Certificate {
      * ordered from subject to issuer
      */
     Certificate(const Blob& crt);
-    Certificate(const std::string& pem) : cert(nullptr) {
-        unpack((const uint8_t*)pem.data(), pem.size());
-    }
     Certificate(const uint8_t* dat, size_t dat_size) : cert(nullptr) {
         unpack(dat, dat_size);
     }
+    Certificate(std::string_view pem) : Certificate((const uint8_t*)pem.data(), pem.size()) {}
 
     /**
      * Import certificate chain (PEM or DER),
@@ -423,15 +495,17 @@ struct OPENDHT_PUBLIC Certificate {
         p.pack_bin_body((const char*)b.data(), b.size());
     }
 
-    void msgpack_unpack(msgpack::object o);
+    void msgpack_unpack(const msgpack::object& o);
 
     explicit operator bool() const { return cert; }
     PublicKey getPublicKey() const;
 
     /** Same as getPublicKey().getId() */
-    InfoHash getId() const;
+    const InfoHash& getId() const;
     /** Same as getPublicKey().getLongId() */
-    PkId getLongId() const;
+    const PkId& getLongId() const;
+
+    Blob getSerialNumber() const;
 
     /** Read certificate Common Name (CN) */
     std::string getName() const;
@@ -482,8 +556,8 @@ struct OPENDHT_PUBLIC Certificate {
     void addRevocationList(RevocationList&&);
     void addRevocationList(std::shared_ptr<RevocationList>);
 
-    static Certificate generate(const PrivateKey& key, const std::string& name = "dhtnode", const Identity& ca = {}, bool is_ca = false);
-    static Certificate generate(const CertificateRequest& request, const Identity& ca);
+    static Certificate generate(const PrivateKey& key, const std::string& name = "dhtnode", const Identity& ca = {}, bool is_ca = false, int64_t validity = 0);
+    static Certificate generate(const CertificateRequest& request, const Identity& ca, int64_t validity = 0);
 
     gnutls_x509_crt_t getCopy() const {
         if (not cert)
@@ -526,11 +600,29 @@ struct OPENDHT_PUBLIC Certificate {
 
     gnutls_digest_algorithm_t getPreferredDigest() const;
 
+    /*
+     * Generate OCSP request.
+     * Return GnuTLS error code.
+     * https://www.gnutls.org/manual/html_node/Error-codes.html
+     */
+    std::pair<std::string, Blob> generateOcspRequest(gnutls_x509_crt_t& issuer);
+
+    /**
+     * Change certificate's expiration
+     */
+    void setValidity(const Identity& ca, int64_t validity);
+    void setValidity(const PrivateKey& key, int64_t validity);
+
     gnutls_x509_crt_t cert {nullptr};
     std::shared_ptr<Certificate> issuer {};
+    std::shared_ptr<OcspResponse> ocspResponse;
 private:
     Certificate(const Certificate&) = delete;
     Certificate& operator=(const Certificate&) = delete;
+    mutable InfoHash cachedId_ {};
+    mutable PkId cachedLongId_ {};
+    mutable std::atomic_bool idCached_ {false};
+    mutable std::atomic_bool longIdCached_ {false};
 
     struct crlNumberCmp {
         bool operator() (const std::shared_ptr<RevocationList>& lhs, const std::shared_ptr<RevocationList>& rhs) const {
@@ -706,8 +798,10 @@ OPENDHT_PUBLIC Blob aesEncrypt(const Blob& data, const std::string& password);
 /**
  * AES-GCM decryption.
  */
-OPENDHT_PUBLIC Blob aesDecrypt(const Blob& data, const Blob& key);
-OPENDHT_PUBLIC Blob aesDecrypt(const Blob& data, const std::string& password);
+OPENDHT_PUBLIC Blob aesDecrypt(const uint8_t* data, size_t data_length, const Blob& key);
+OPENDHT_PUBLIC inline Blob aesDecrypt(const Blob& data, const Blob& key) { return aesDecrypt(data.data(), data.size(), key); }
+OPENDHT_PUBLIC Blob aesDecrypt(const uint8_t* data, size_t data_length, const std::string& password);
+OPENDHT_PUBLIC inline Blob aesDecrypt(const Blob& data, const std::string& password) { return aesDecrypt(data.data(), data.size(), password); }
 
 }
 }

include/opendht/default_types.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -66,8 +66,10 @@ private:
 
 public:
     virtual void unpackValue(const Value& v) override {
-        if (v.owner)
+        if (v.owner) {
+            owner = v.owner;
             from = v.owner->getId();
+        }
         BaseClass::unpackValue(v);
     }
 
@@ -75,6 +77,7 @@ public:
         return [](const Value& v){ return v.isSigned(); };
     }
 
+    Sp<crypto::PublicKey> owner;
     dht::InfoHash from;
 };
 
@@ -144,17 +147,18 @@ public:
     static const ValueType TYPE;
 
     TrustRequest() {}
-    TrustRequest(std::string s) : service(s) {}
-    TrustRequest(std::string s, const Blob& d) : service(s), payload(d) {}
+    TrustRequest(std::string s, std::string ci = {}) : service(s), conversationId(ci) {}
+    TrustRequest(std::string s, std::string ci, const Blob& d) : service(s), conversationId(ci), payload(d) {}
 
     static Value::Filter getFilter() {
         return EncryptedValue::getFilter();
     }
 
     std::string service;
+    std::string conversationId;
     Blob payload;
     bool confirm {false};
-    MSGPACK_DEFINE_MAP(service, payload, confirm)
+    MSGPACK_DEFINE_MAP(service, conversationId, payload, confirm)
 };
 
 class OPENDHT_PUBLIC IceCandidates : public EncryptedValue<IceCandidates>
@@ -189,7 +193,7 @@ public:
 #endif
     }
 
-    virtual void msgpack_unpack(msgpack::object o)
+    virtual void msgpack_unpack(const msgpack::object& o)
     {
         if (o.type != msgpack::type::ARRAY) throw msgpack::type_error();
         if (o.via.array.size < 2) throw msgpack::type_error();
@@ -229,7 +233,7 @@ public:
         pk.pack_bin_body((const char*)addr.get(), addr.getLength());
     }
 
-    virtual void msgpack_unpack(msgpack::object o)
+    virtual void msgpack_unpack(const msgpack::object& o)
     {
         if (o.type == msgpack::type::BIN)
             addr = {(sockaddr*)o.via.bin.ptr, (socklen_t)o.via.bin.size};

include/opendht/dht.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
@@ -61,14 +61,15 @@ struct LocalListener;
  */
 class OPENDHT_PUBLIC Dht final : public DhtInterface {
 public:
-
-    Dht();
-
     /**
      * Initialise the Dht with two open sockets (for IPv4 and IP6)
      * and an ID for the node.
      */
-    Dht(std::unique_ptr<net::DatagramSocket>&& sock, const Config& config, const Logger& l = {});
+    Dht(std::unique_ptr<net::DatagramSocket>&& sock, const Config& config, const Sp<Logger>& l = {});
+
+    Dht(std::unique_ptr<net::DatagramSocket>&& sock, const Config& config, const Logger& l = {})
+        : Dht(std::move(sock), config, std::make_shared<Logger>(l)) {}
+
     virtual ~Dht();
 
     /**
@@ -76,10 +77,14 @@ public:
      */
     inline const InfoHash& getNodeId() const override { return myid; }
 
+    NodeStatus updateStatus(sa_family_t af) override;
+
     /**
      * Get the current status of the node for the given family.
      */
-    NodeStatus getStatus(sa_family_t af) const override;
+    NodeStatus getStatus(sa_family_t af) const override {
+        return dht(af).status;
+    }
 
     NodeStatus getStatus() const override {
         return std::max(getStatus(AF_INET), getStatus(AF_INET6));
@@ -90,7 +95,7 @@ public:
     /**
      * Performs final operations before quitting.
      */
-    void shutdown(ShutdownCallback cb) override;
+    void shutdown(ShutdownCallback cb, bool stop = false) override;
 
     /**
      * Returns true if the node is running (have access to an open socket).
@@ -107,6 +112,15 @@ public:
         return types.getType(type_id);
     }
 
+    void addBootstrap(const std::string& host, const std::string& service) override {
+        bootstrap_nodes.emplace_back(host, service);
+        startBootstrap();
+    }
+
+    void clearBootstrap() override {
+        bootstrap_nodes.clear();
+    }
+
     /**
      * Insert a node in the main routing table.
      * The node is not pinged, so this should be
@@ -119,9 +133,9 @@ public:
 
     void pingNode(SockAddr, DoneCallbackSimple&& cb={}) override;
 
-    time_point periodic(const uint8_t *buf, size_t buflen, SockAddr) override;
-    time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen) override {
-        return periodic(buf, buflen, SockAddr(from, fromlen));
+    time_point periodic(const uint8_t *buf, size_t buflen, SockAddr, const time_point& now) override;
+    time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen, const time_point& now) override {
+        return periodic(buf, buflen, SockAddr(from, fromlen), now);
     }
 
     /**
@@ -288,6 +302,9 @@ public:
     void setStorageLimit(size_t limit = DEFAULT_STORAGE_LIMIT) override {
         max_store_size = limit;
     }
+    size_t getStorageLimit() const override {
+        return max_store_size;
+    }
 
     /**
      * Returns the total memory usage of stored values and the number
@@ -326,10 +343,10 @@ private:
     static constexpr unsigned LISTEN_NODES {4};
 
     /* The maximum number of hashes we're willing to track. */
-    static constexpr unsigned MAX_HASHES {64 * 1024};
+    static constexpr unsigned MAX_HASHES {1024 * 1024 * 1024};
 
     /* The maximum number of searches we keep data about. */
-    static constexpr unsigned MAX_SEARCHES {64 * 1024};
+    static constexpr unsigned MAX_SEARCHES {1024 * 1024};
 
     static constexpr std::chrono::minutes MAX_STORAGE_MAINTENANCE_EXPIRE_TIME {10};
 
@@ -337,9 +354,12 @@ private:
     static constexpr std::chrono::minutes SEARCH_EXPIRE_TIME {62};
 
     /* Timeout for listen */
-    static constexpr std::chrono::seconds LISTEN_EXPIRE_TIME {30};
+    static constexpr duration LISTEN_EXPIRE_TIME {std::chrono::seconds(30)};
+    static constexpr duration LISTEN_EXPIRE_TIME_PUBLIC {std::chrono::minutes(5)};
 
-    static constexpr std::chrono::seconds REANNOUNCE_MARGIN {10};
+    static constexpr duration REANNOUNCE_MARGIN {std::chrono::seconds(10)};
+
+    static constexpr std::chrono::seconds BOOTSTRAP_PERIOD {10};
 
     static constexpr size_t TOKEN_SIZE {32};
 
@@ -353,6 +373,8 @@ private:
     Dht(const Dht&) = delete;
     Dht& operator=(const Dht&) = delete;
 
+    std::mt19937_64 rd {crypto::getSeededRandomEngine<std::mt19937_64>()};
+
     InfoHash myid {};
 
     uint64_t secret {};
@@ -361,40 +383,49 @@ private:
     // registred types
     TypeStore types;
 
-    // the stuff
-    RoutingTable buckets4 {};
-    RoutingTable buckets6 {};
+    using SearchMap = std::map<InfoHash, Sp<Search>>;
+    struct Kad {
+        RoutingTable buckets {};
+        SearchMap searches {};
+        unsigned pending_pings {0};
+        NodeStatus status;
+
+        NodeStatus getStatus(time_point now) const;
+        NodeStats getNodesStats(time_point now, const InfoHash& myid) const;
+    };
+
+    Kad dht4 {};
+    Kad dht6 {};
+
+    std::vector<std::pair<std::string,std::string>> bootstrap_nodes {};
+    std::chrono::steady_clock::duration bootstrap_period {BOOTSTRAP_PERIOD};
+    Sp<Scheduler::Job> bootstrapJob {};
 
     std::map<InfoHash, Storage> store;
     std::map<SockAddr, StorageBucket, SockAddr::ipCmp> store_quota;
     size_t total_values {0};
     size_t total_store_size {0};
+    size_t max_store_keys {MAX_HASHES};
     size_t max_store_size {DEFAULT_STORAGE_LIMIT};
 
-    using SearchMap = std::map<InfoHash, Sp<Search>>;
-    SearchMap searches4 {};
-    SearchMap searches6 {};
-    uint16_t search_id {0};
+    size_t max_searches {MAX_SEARCHES};
+    size_t search_id {0};
 
     // map a global listen token to IPv4, IPv6 specific listen tokens.
     // 0 is the invalid token.
     std::map<size_t, std::tuple<size_t, size_t, size_t>> listeners {};
     size_t listener_token {1};
 
+
     // timing
     Scheduler scheduler;
     Sp<Scheduler::Job> nextNodesConfirmation {};
     Sp<Scheduler::Job> nextStorageMaintenance {};
 
     net::NetworkEngine network_engine;
-    unsigned pending_pings4 {0};
-    unsigned pending_pings6 {0};
-
     using ReportedAddr = std::pair<unsigned, SockAddr>;
     std::vector<ReportedAddr> reported_addr;
 
-    std::mt19937_64 rd {crypto::getSeededRandomEngine<std::mt19937_64>()};
-
     std::string persistPath;
 
     // are we a bootstrap node ?
@@ -403,6 +434,11 @@ private:
     //       be put in bootstrap mode.
     const bool is_bootstrap {false};
     const bool maintain_storage {false};
+    const bool public_stable {false};
+
+    inline const duration& getListenExpiration() const {
+        return public_stable ? LISTEN_EXPIRE_TIME_PUBLIC : LISTEN_EXPIRE_TIME;
+    }
 
     void rotateSecrets();
 
@@ -412,15 +448,15 @@ private:
     void reportedAddr(const SockAddr&);
 
     // Storage
-    void storageAddListener(const InfoHash& id, const Sp<Node>& node, size_t tid, Query&& = {});
+    void storageAddListener(const InfoHash& id, const Sp<Node>& node, size_t tid, Query&& = {}, int version = 0);
     bool storageStore(const InfoHash& id, const Sp<Value>& value, time_point created, const SockAddr& sa = {}, bool permanent = false);
-    bool storageErase(const InfoHash& id, Value::Id vid);
     bool storageRefresh(const InfoHash& id, Value::Id vid);
     void expireStore();
     void expireStorage(InfoHash h);
     void expireStore(decltype(store)::iterator);
 
-    void storageChanged(const InfoHash& id, Storage& st, ValueStorage&, bool newValue);
+    void storageRemoved(const InfoHash& id, Storage& st, const std::vector<Sp<Value>>& values, size_t totalSize);
+    void storageChanged(const InfoHash& id, Storage& st, const Sp<Value>&, bool newValue);
     std::string printStorageLog(const decltype(store)::value_type&) const;
 
     /**
@@ -432,8 +468,10 @@ private:
     size_t maintainStorage(decltype(store)::value_type&, bool force=false, const DoneCallback& donecb={});
 
     // Buckets
-    RoutingTable& buckets(sa_family_t af) { return af == AF_INET ? buckets4 : buckets6; }
-    const RoutingTable& buckets(sa_family_t af) const { return af == AF_INET ? buckets4 : buckets6; }
+    Kad& dht(sa_family_t af) { return af == AF_INET ? dht4 : dht6; }
+    const Kad& dht(sa_family_t af) const { return af == AF_INET ? dht4 : dht6; }
+    RoutingTable& buckets(sa_family_t af) { return dht(af).buckets; }
+    const RoutingTable& buckets(sa_family_t af) const { return dht(af).buckets; }
     Bucket* findBucket(const InfoHash& id, sa_family_t af) {
         auto& b = buckets(af);
         auto it = b.findBucket(id);
@@ -447,6 +485,9 @@ private:
     void sendCachedPing(Bucket& b);
     bool bucketMaintenance(RoutingTable&);
     void dumpBucket(const Bucket& b, std::ostream& out) const;
+    void bootstrap();
+    void startBootstrap();
+    void stopBootstrap();
 
     // Nodes
     void onNewNode(const Sp<Node>& node, int confirm);
@@ -454,9 +495,8 @@ private:
     bool trySearchInsert(const Sp<Node>& node);
 
     // Searches
-
-    inline SearchMap& searches(sa_family_t af) { return af == AF_INET ? searches4 : searches6; }
-    inline const SearchMap& searches(sa_family_t af) const { return af == AF_INET ? searches4 : searches6; }
+    inline SearchMap& searches(sa_family_t af) { return dht(af).searches; }
+    inline const SearchMap& searches(sa_family_t af) const { return dht(af).searches; }
 
     /**
      * Low-level method that will perform a search on the DHT for the specified
@@ -480,6 +520,9 @@ private:
     void confirmNodes();
     void expire();
 
+    void onConnected();
+    void onDisconnected();
+
     /**
      * Generic function to execute when a 'get' request has completed.
      *
@@ -533,7 +576,8 @@ private:
      *
      * @param sr  The search to execute its operations.
      */
-    void searchStep(Sp<Search>);
+    void searchStep(std::weak_ptr<Search> ws);
+
     void searchSynchedNodeListen(const Sp<Search>&, SearchNode&);
 
     void dumpSearch(const Search& sr, std::ostream& out) const;
@@ -564,7 +608,8 @@ private:
             const InfoHash& hash,
             const Blob& token,
             size_t socket_id,
-            const Query& query);
+            const Query& query,
+            int version = 0);
     void onListenDone(const Sp<Node>& status,
             net::RequestAnswer& a,
             Sp<Search>& sr);

include/opendht/dht_interface.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -21,6 +21,8 @@
 #include "infohash.h"
 #include "log_enable.h"
 
+#include <queue>
+
 namespace dht {
 
 namespace net {
@@ -30,7 +32,8 @@ namespace net {
 class OPENDHT_PUBLIC DhtInterface {
 public:
     DhtInterface() = default;
-    DhtInterface(const Logger& l) : DHT_LOG(l) {};
+    DhtInterface(const Logger& l) : logger_(std::make_shared<Logger>(l)) {};
+    DhtInterface(const std::shared_ptr<Logger>& l) : logger_(l) {};
     virtual ~DhtInterface() = default;
 
     // [[deprecated]]
@@ -41,9 +44,14 @@ public:
     /**
      * Get the current status of the node for the given family.
      */
+    virtual NodeStatus updateStatus(sa_family_t af) { return getStatus(af); };
     virtual NodeStatus getStatus(sa_family_t af) const = 0;
     virtual NodeStatus getStatus() const = 0;
 
+    void addOnConnectedCallback(std::function<void()> cb) {
+        onConnectCallbacks_.emplace(std::move(cb));
+    }
+
     virtual net::DatagramSocket* getSocket() const { return {}; };
 
     /**
@@ -53,8 +61,10 @@ public:
 
     /**
      * Performs final operations before quitting.
+     * stop: if true, cancel ongoing operations and call their 'done'
+     *       callbacks synchronously.
      */
-    virtual void shutdown(ShutdownCallback cb) = 0;
+    virtual void shutdown(ShutdownCallback cb, bool stop = false) = 0;
 
     /**
      * Returns true if the node is running (have access to an open socket).
@@ -68,6 +78,9 @@ public:
 
     virtual const ValueType& getType(ValueType::Id type_id) const = 0;
 
+    virtual void addBootstrap(const std::string& /*host*/, const std::string& /*service*/) {};
+    virtual void clearBootstrap() {};
+
     /**
      * Insert a node in the main routing table.
      * The node is not pinged, so this should be
@@ -78,8 +91,8 @@ public:
 
     virtual void pingNode(SockAddr, DoneCallbackSimple&& cb={}) = 0;
 
-    virtual time_point periodic(const uint8_t *buf, size_t buflen, SockAddr) = 0;
-    virtual time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen) = 0;
+    virtual time_point periodic(const uint8_t *buf, size_t buflen, SockAddr, const time_point& now) = 0;
+    virtual time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen, const time_point& now) = 0;
 
     /**
      * Get a value by searching on all available protocols (IPv4, IPv6),
@@ -208,6 +221,7 @@ public:
      * Set the in-memory storage limit in bytes
      */
     virtual void setStorageLimit(size_t limit = DEFAULT_STORAGE_LIMIT) = 0;
+    virtual size_t getStorageLimit() const = 0;
 
     /**
      * Returns the total memory usage of stored values and the number
@@ -221,15 +235,23 @@ public:
      * Enable or disable logging of DHT internal messages
      */
     virtual void setLoggers(LogMethod error = {}, LogMethod warn = {}, LogMethod debug = {}) {
-        DHT_LOG.DBG = debug;
-        DHT_LOG.WARN = warn;
-        DHT_LOG.ERR = error;
+        if (logger_) {
+            logger_->DBG = std::move(debug);
+            logger_->WARN = std::move(warn);
+            logger_->ERR = std::move(error);
+        } else
+            logger_= std::make_shared<Logger>(std::move(error), std::move(warn), std::move(debug));
     }
 
     virtual void setLogger(const Logger& l) {
-        DHT_LOG.DBG = l.DBG;
-        DHT_LOG.WARN = l.WARN;
-        DHT_LOG.ERR = l.ERR;
+        if (logger_)
+            *logger_ = l;
+        else
+            logger_= std::make_shared<Logger>(l);
+    }
+
+    virtual void setLogger(const std::shared_ptr<Logger>& l) {
+        logger_ = l;
     }
 
     /**
@@ -237,11 +259,15 @@ public:
      */
     virtual void setLogFilter(const InfoHash& f)
     {
-        DHT_LOG.setFilter(f);
+        if (logger_)
+            logger_->setFilter(f);
     }
 
     virtual void setPushNotificationToken(const std::string&) {};
 
+    virtual void setPushNotificationTopic(const std::string&) {};
+    virtual void setPushNotificationPlatform(const std::string&) {};
+
     /**
      * Call linked callback with a push notification
      * @param notification to process
@@ -249,7 +275,8 @@ public:
     virtual void pushNotificationReceived(const std::map<std::string, std::string>& data) = 0;
 
 protected:
-    Logger DHT_LOG;
+    std::shared_ptr<Logger> logger_ {};
+    std::queue<std::function<void()>> onConnectCallbacks_ {};
 };
 
 } // namespace dht

include/opendht/dht_proxy_client.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2016-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *          Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *          Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
@@ -67,6 +67,22 @@ public:
 #endif
     }
 
+    virtual void setPushNotificationTopic(const std::string& topic) override {
+#ifdef OPENDHT_PUSH_NOTIFICATIONS
+        notificationTopic_ = topic;
+#else
+        (void) topic;
+#endif
+    }
+
+    virtual void setPushNotificationPlatform(const std::string& platform) override {
+#ifdef OPENDHT_PUSH_NOTIFICATIONS
+        platform_ = platform;
+#else
+        (void) platform;
+#endif
+    }
+
     virtual ~DhtProxyClient();
 
     /**
@@ -85,7 +101,7 @@ public:
     /**
      * Performs final operations before quitting.
      */
-    void shutdown(ShutdownCallback cb) override;
+    void shutdown(ShutdownCallback cb, bool) override;
 
     /**
      * Returns true if the node is running (have access to an open socket).
@@ -107,13 +123,13 @@ public:
      */
     virtual void get(const InfoHash& key, GetCallback cb, DoneCallback donecb={}, Value::Filter&& f={}, Where&& w = {}) override;
     virtual void get(const InfoHash& key, GetCallback cb, DoneCallbackSimple donecb={}, Value::Filter&& f={}, Where&& w = {}) override {
-        get(key, cb, bindDoneCb(donecb), std::forward<Value::Filter>(f), std::forward<Where>(w));
+        get(key, cb, bindDoneCb(std::move(donecb)), std::forward<Value::Filter>(f), std::forward<Where>(w));
     }
     virtual void get(const InfoHash& key, GetCallbackSimple cb, DoneCallback donecb={}, Value::Filter&& f={}, Where&& w = {}) override {
-        get(key, bindGetCb(cb), donecb, std::forward<Value::Filter>(f), std::forward<Where>(w));
+        get(key, bindGetCb(cb), std::move(donecb), std::forward<Value::Filter>(f), std::forward<Where>(w));
     }
     virtual void get(const InfoHash& key, GetCallbackSimple cb, DoneCallbackSimple donecb, Value::Filter&& f={}, Where&& w = {}) override {
-        get(key, bindGetCb(cb), bindDoneCb(donecb), std::forward<Value::Filter>(f), std::forward<Where>(w));
+        get(key, bindGetCb(cb), bindDoneCb(std::move(donecb)), std::forward<Value::Filter>(f), std::forward<Where>(w));
     }
 
     /**
@@ -134,7 +150,7 @@ public:
             time_point created=time_point::max(),
             bool permanent = false) override
     {
-        put(key, v, bindDoneCb(cb), created, permanent);
+        put(key, v, bindDoneCb(std::move(cb)), created, permanent);
     }
 
     void put(const InfoHash& key,
@@ -143,7 +159,7 @@ public:
             time_point created=time_point::max(),
             bool permanent = false) override
     {
-        put(key, std::make_shared<Value>(std::move(v)), cb, created, permanent);
+        put(key, std::make_shared<Value>(std::move(v)), std::move(cb), created, permanent);
     }
     void put(const InfoHash& key,
             Value&& v,
@@ -151,7 +167,7 @@ public:
             time_point created=time_point::max(),
             bool permanent = false) override
     {
-        put(key, std::forward<Value>(v), bindDoneCb(cb), created, permanent);
+        put(key, std::forward<Value>(v), bindDoneCb(std::move(cb)), created, permanent);
     }
 
     /**
@@ -176,14 +192,14 @@ public:
     virtual size_t listen(const InfoHash&, ValueCallback, Value::Filter={}, Where={}) override;
 
     virtual size_t listen(const InfoHash& key, GetCallback cb, Value::Filter f={}, Where w={}) override {
-        return listen(key, [cb](const std::vector<Sp<Value>>& vals, bool expired){
+        return listen(key, [cb=std::move(cb)](const std::vector<Sp<Value>>& vals, bool expired){
             if (not expired)
                 return cb(vals);
             return true;
         }, std::forward<Value::Filter>(f), std::forward<Where>(w));
     }
     virtual size_t listen(const InfoHash& key, GetCallbackSimple cb, Value::Filter f={}, Where w={}) override {
-        return listen(key, bindGetCb(cb), std::forward<Value::Filter>(f), std::forward<Where>(w));
+        return listen(key, bindGetCb(std::move(cb)), std::forward<Value::Filter>(f), std::forward<Where>(w));
     }
     /*
      * This function relies on the cache implementation.
@@ -197,9 +213,9 @@ public:
      */
     void pushNotificationReceived(const std::map<std::string, std::string>& notification) override;
 
-    time_point periodic(const uint8_t*, size_t, SockAddr) override;
-    time_point periodic(const uint8_t* buf, size_t buflen, const sockaddr* from, socklen_t fromlen) override {
-        return periodic(buf, buflen, SockAddr(from, fromlen));
+    time_point periodic(const uint8_t*, size_t, SockAddr, const time_point& now) override;
+    time_point periodic(const uint8_t* buf, size_t buflen, const sockaddr* from, socklen_t fromlen, const time_point& now) override {
+        return periodic(buf, buflen, SockAddr(from, fromlen), now);
     }
 
     /**
@@ -214,7 +230,7 @@ public:
      */
     virtual void query(const InfoHash& /*key*/, QueryCallback /*cb*/, DoneCallback /*done_cb*/ = {}, Query&& /*q*/ = {}) override { }
     virtual void query(const InfoHash& key, QueryCallback cb, DoneCallbackSimple done_cb = {}, Query&& q = {}) override {
-        query(key, cb, bindDoneCb(done_cb), std::forward<Query>(q));
+        query(key, cb, bindDoneCb(std::move(done_cb)), std::forward<Query>(q));
     }
 
     /**
@@ -263,12 +279,12 @@ public:
     void dumpTables() const override {}
     std::vector<unsigned> getNodeMessageStats(bool) override { return {}; }
     void setStorageLimit(size_t) override {}
+    virtual size_t getStorageLimit() const override { return 0; }
     void connectivityChanged(sa_family_t) override {
-        restartListeners();
+        getProxyInfos();
     }
     void connectivityChanged() override {
         getProxyInfos();
-        restartListeners();
         loopSignal_();
     }
 
@@ -285,7 +301,7 @@ private:
      */
     struct InfoState;
     void getProxyInfos();
-    void queryProxyInfo(std::shared_ptr<InfoState> infoState, sa_family_t family, std::shared_ptr<http::Resolver> resolver);
+    void queryProxyInfo(const std::shared_ptr<InfoState>& infoState, const std::shared_ptr<http::Resolver>& resolver, sa_family_t family);
     void onProxyInfos(const Json::Value& val, const sa_family_t family);
     SockAddr parsePublicAddress(const Json::Value& val);
 
@@ -300,10 +316,12 @@ private:
         SUBSCRIBE,
         RESUBSCRIBE,
     };
+    using CacheValueCallback = std::function<bool(const std::vector<std::shared_ptr<Value>>& values, bool expired, system_clock::time_point)>;
+
     /**
      * Send Listen with httpClient_
      */
-    void sendListen(const restinio::http_request_header_t header, const ValueCallback& cb,
+    void sendListen(const restinio::http_request_header_t& header, const CacheValueCallback& cb,
                     const Sp<OperationState>& opstate, Listener& listener, ListenMethod method = ListenMethod::LISTEN);
     void handleResubscribe(const asio::error_code& ec, const InfoHash& key,
                            const size_t token, std::shared_ptr<OperationState> opstate);
@@ -327,14 +345,18 @@ private:
     std::shared_ptr<dht::crypto::Certificate> serverCertificate_;
     //std::pair<std::string, std::string> serverHostService_;
     std::string pushClientId_;
+    std::string pushSessionId_;
 
     mutable std::mutex lockCurrentProxyInfos_;
     NodeStatus statusIpv4_ {NodeStatus::Disconnected};
     NodeStatus statusIpv6_ {NodeStatus::Disconnected};
     NodeStats stats4_ {};
     NodeStats stats6_ {};
+    SockAddr localAddrv4_;
+    SockAddr localAddrv6_;
     SockAddr publicAddressV4_;
     SockAddr publicAddressV6_;
+    std::atomic_bool launchConnectedCbs_ {false};
 
     InfoHash myid {};
 
@@ -376,13 +398,13 @@ private:
      * Retrieve if we can connect to the proxy (update statusIpvX_)
      */
     void handleProxyConfirm(const asio::error_code &ec);
-    Sp<asio::steady_timer> nextProxyConfirmationTimer_;
-    Sp<asio::steady_timer> listenerRestartTimer_;
+    std::unique_ptr<asio::steady_timer> nextProxyConfirmationTimer_;
+    std::unique_ptr<asio::steady_timer> listenerRestartTimer_;
 
     /**
      * Relaunch LISTEN requests if the client disconnect/reconnect.
      */
-    void restartListeners();
+    void restartListeners(const asio::error_code &ec);
 
     /**
      * Refresh a listen via a token
@@ -396,6 +418,25 @@ private:
      */
     std::string deviceKey_ {};
 
+    /**
+     * Notification topic for ios notifications.
+     */
+    std::string notificationTopic_ {};
+
+    /**
+     * Platform for push notifications (supported android, ios, unifiedpush)
+     */
+    std::string platform_
+#ifdef __ANDROID__
+    {"android"};
+#else
+#ifdef __APPLE__
+    {"ios"};
+#else
+    {};
+#endif
+#endif
+
     const std::function<void()> loopSignal_;
 
 #ifdef OPENDHT_PUSH_NOTIFICATIONS
@@ -405,7 +446,6 @@ private:
 
     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

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2017-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *          Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *          Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
@@ -36,6 +36,16 @@
 #include <memory>
 #include <mutex>
 
+namespace dht {
+enum class PushType {
+    None = 0,
+    Android,
+    iOS,
+    UnifiedPush
+};
+}
+MSGPACK_ADD_ENUM(dht::PushType)
+
 namespace http {
 class Request;
 struct ListenerSession;
@@ -52,6 +62,15 @@ class DhtRunner;
 using RestRouter = restinio::router::express_router_t<>;
 using RequestStatus = restinio::request_handling_status_t;
 
+struct OPENDHT_PUBLIC ProxyServerConfig {
+    std::string address {};
+    in_port_t port {8000};
+    std::string pushServer {};
+    std::string persistStatePath {};
+    dht::crypto::Identity identity {};
+    std::string bundleId {};
+};
+
 /**
  * Describes the REST API
  */
@@ -66,10 +85,9 @@ public:
      * @note if the server fails to start (if port is already used or reserved),
      * it will fails silently
      */
-    DhtProxyServer(
-       dht::crypto::Identity identity,
-       std::shared_ptr<DhtRunner> dht, in_port_t port = 8000, const std::string& pushServer = "",
-       std::shared_ptr<dht::Logger> logger = {});
+    DhtProxyServer(const std::shared_ptr<DhtRunner>& dht,
+        const ProxyServerConfig& config = {},
+        const std::shared_ptr<dht::Logger>& logger = {});
 
     virtual ~DhtProxyServer();
 
@@ -83,27 +101,28 @@ public:
     struct ServerStats {
         /** Current number of listen operations */
         size_t listenCount {0};
-        /** Current number of permanent put operations */
+        /** Current number of permanent put operations (hash used) */
         size_t putCount {0};
+        /** Current number of permanent put values */
+        size_t totalPermanentPuts {0};
         /** Current number of push tokens with at least one listen operation */
         size_t pushListenersCount {0};
         /** Average requests per second */
         double requestRate {0};
         /** Node Info **/
-        NodeInfo nodeInfo {};
+        std::shared_ptr<NodeInfo> nodeInfo {};
 
         std::string toString() const {
             std::ostringstream ss;
             ss << "Listens: " << listenCount << " Puts: " << putCount << " PushListeners: " << pushListenersCount << std::endl;
             ss << "Requests: " << requestRate << " per second." << std::endl;
-            auto& ni = nodeInfo;
-            auto& ipv4 = ni.ipv4;
-            if (ipv4.table_depth > 1) {
-                ss << "IPv4 Network estimation: " << ipv4.getNetworkSizeEstimation() << std::endl;;
-            }
-            auto& ipv6 = ni.ipv6;
-            if (ipv6.table_depth > 1) {
-                ss << "IPv6 Network estimation: " << ipv6.getNetworkSizeEstimation() << std::endl;;
+            if (nodeInfo) {
+                auto& ipv4 = nodeInfo->ipv4;
+                if (ipv4.table_depth > 1)
+                    ss << "IPv4 Network estimation: " << ipv4.getNetworkSizeEstimation() << std::endl;;
+                auto& ipv6 = nodeInfo->ipv6;
+                if (ipv6.table_depth > 1)
+                    ss << "IPv6 Network estimation: " << ipv6.getNetworkSizeEstimation() << std::endl;;
             }
             return ss.str();
         }
@@ -115,16 +134,18 @@ public:
             Json::Value result;
             result["listenCount"] = static_cast<Json::UInt64>(listenCount);
             result["putCount"] = static_cast<Json::UInt64>(putCount);
+            result["totalPermanentPuts"] = static_cast<Json::UInt64>(totalPermanentPuts);
             result["pushListenersCount"] = static_cast<Json::UInt64>(pushListenersCount);
             result["requestRate"] = requestRate;
-            result["nodeInfo"] = nodeInfo.toJson();
+            if (nodeInfo)
+                result["nodeInfo"] = nodeInfo->toJson();
             return result;
         }
     };
 
-    ServerStats stats() const { return stats_; }
+    std::shared_ptr<ServerStats> stats() const { return stats_; }
 
-    void updateStats() const;
+    std::shared_ptr<ServerStats> updateStats(std::shared_ptr<NodeInfo> info) const;
 
     std::shared_ptr<DhtRunner> getNode() const { return dht_; }
 
@@ -134,7 +155,8 @@ private:
     struct RestRouterTraits;
 
     template <typename HttpResponse>
-    HttpResponse initHttpResponse(HttpResponse response) const;
+    static HttpResponse initHttpResponse(HttpResponse response);
+    static restinio::request_handling_status_t serverError(restinio::request_t& request);
 
     template< typename ServerSettings >
     void addServerSettings(ServerSettings& serverSettings,
@@ -254,6 +276,8 @@ private:
                            restinio::router::route_params_t params);
 
 #ifdef OPENDHT_PUSH_NOTIFICATIONS
+    PushType getTypeFromString(const std::string& type);
+    std::string getDefaultTopic(PushType type);
     /**
      * Subscribe to push notifications for an iOS or Android device.
      * Method: SUBSCRIBE "/{InfoHash: .*}"
@@ -281,17 +305,18 @@ private:
      * @param key of the device
      * @param json, the content to send
      */
-    void sendPushNotification(const std::string& key, Json::Value&& json, bool isAndroid);
+    void sendPushNotification(const std::string& key, Json::Value&& json, PushType type, bool highPriority, const std::string& topic);
 
     /**
      * Send push notification with an expire timeout.
      * @param ec
      * @param pushToken
      * @param json
-     * @param isAndroid
+     * @param type
+     * @param topic
      */
     void handleNotifyPushListenExpire(const asio::error_code &ec, const std::string pushToken,
-                                      Json::Value json, const bool isAndroid);
+                                      std::function<Json::Value()> json, PushType type, const std::string& topic);
 
     /**
      * Remove a push listener between a client and a hash
@@ -306,13 +331,24 @@ private:
 #endif //OPENDHT_PUSH_NOTIFICATIONS
 
     void handlePrintStats(const asio::error_code &ec);
+    void updateStats();
+
+    template <typename Os>
+    void saveState(Os& stream);
+
+    template <typename Is>
+    void loadState(Is& is, size_t size);
 
     using clock = std::chrono::steady_clock;
     using time_point = clock::time_point;
 
+    std::shared_ptr<asio::io_context> ioContext_;
     std::shared_ptr<DhtRunner> dht_;
     Json::StreamWriterBuilder jsonBuilder_;
     Json::CharReaderBuilder jsonReaderBuilder_;
+    std::mt19937_64 rd {crypto::getSeededRandomEngine<std::mt19937_64>()};
+
+    std::string persistPath_;
 
     // http server
     std::thread serverThread_;
@@ -321,15 +357,14 @@ 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_;
 
-    mutable std::mutex statsMutex_;
-    mutable ServerStats stats_;
-    mutable NodeInfo nodeInfo_ {};
+    std::shared_ptr<ServerStats> stats_;
+    std::shared_ptr<NodeInfo> nodeInfo_ {};
     std::unique_ptr<asio::steady_timer> printStatsTimer_;
 
     // Thread-safe access to listeners map.
@@ -339,15 +374,49 @@ private:
     // Connection Listener observing conn state changes.
     std::shared_ptr<ConnectionListener> connListener_;
 
+    struct PushSessionContext {
+        std::mutex lock;
+        std::string sessionId;
+        PushSessionContext(const std::string& id) : sessionId(id) {}
+    };
     struct PermanentPut {
         time_point expiration;
         std::string pushToken;
         std::string clientId;
+        std::shared_ptr<PushSessionContext> sessionCtx;
         std::unique_ptr<asio::steady_timer> expireTimer;
         std::unique_ptr<asio::steady_timer> expireNotifyTimer;
+        Sp<Value> value;
+        PushType type;
+        std::string topic;
+
+        template <typename Packer>
+        void msgpack_pack(Packer& p) const
+        {
+            p.pack_map(2 + (sessionCtx ? 1 : 0) + (clientId.empty() ? 0 : 1) + (type == PushType::None ? 0 : 2) + (topic.empty() ? 0 : 1));
+            p.pack("value"); p.pack(value);
+            p.pack("exp"); p.pack(to_time_t(expiration));
+            if (not clientId.empty()) {
+                p.pack("cid"); p.pack(clientId);
+            }
+            if (sessionCtx) {
+                std::lock_guard<std::mutex> l(sessionCtx->lock);
+                p.pack("sid"); p.pack(sessionCtx->sessionId);
+            }
+            if (type != PushType::None) {
+                p.pack("t"); p.pack(type);
+                p.pack("token"); p.pack(pushToken);
+            }
+            if (not topic.empty()) {
+                p.pack("top"); p.pack(topic);
+            }
+        }
+
+        void msgpack_unpack(const msgpack::object& o);
     };
     struct SearchPuts {
         std::map<dht::Value::Id, PermanentPut> puts;
+        MSGPACK_DEFINE_ARRAY(puts)
     };
     std::mutex lockSearchPuts_;
     std::map<InfoHash, SearchPuts> puts_;
@@ -356,20 +425,42 @@ private:
     mutable std::atomic<time_point> lastStatsReset_ {time_point::min()};
 
     std::string pushServer_;
+    std::string bundleId_;
 
 #ifdef OPENDHT_PUSH_NOTIFICATIONS
     struct Listener {
+        time_point expiration;
         std::string clientId;
+        std::shared_ptr<PushSessionContext> sessionCtx;
         std::future<size_t> internalToken;
         std::unique_ptr<asio::steady_timer> expireTimer;
         std::unique_ptr<asio::steady_timer> expireNotifyTimer;
+        PushType type;
+        std::string topic;
+
+        template <typename Packer>
+        void msgpack_pack(Packer& p) const
+        {
+            p.pack_map(3 + (sessionCtx ? 1 : 0) + (topic.empty() ? 0 : 1));
+            p.pack("cid"); p.pack(clientId);
+            p.pack("exp"); p.pack(to_time_t(expiration));
+            if (sessionCtx) {
+                std::lock_guard<std::mutex> l(sessionCtx->lock);
+                p.pack("sid"); p.pack(sessionCtx->sessionId);
+            }
+            p.pack("t"); p.pack(type);
+            if (!topic.empty()) {
+                p.pack("top"); p.pack(topic);
+            }
+        }
+
+        void msgpack_unpack(const msgpack::object& o);
     };
     struct PushListener {
         std::map<InfoHash, std::vector<Listener>> listeners;
+        MSGPACK_DEFINE_ARRAY(listeners)
     };
-    std::mutex lockPushListeners_;
     std::map<std::string, PushListener> pushListeners_;
-    proxy::ListenToken tokenPushNotif_ {0};
 #endif //OPENDHT_PUSH_NOTIFICATIONS
 };
 

include/opendht/dhtrunner.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
@@ -61,10 +61,13 @@ public:
         std::string proxy_server {};
         std::string push_node_id {};
         std::string push_token {};
+        std::string push_topic {};
+        std::string push_platform {};
         bool peer_discovery {false};
         bool peer_publish {false};
         std::shared_ptr<dht::crypto::Certificate> server_ca;
         dht::crypto::Identity client_identity;
+        SockAddr bind4 {}, bind6 {};
     };
 
     struct Context {
@@ -73,6 +76,7 @@ public:
         std::shared_ptr<PeerDiscovery> peerDiscovery {};
         StatusCallback statusChangedCallback {};
         CertificateStoreQuery certificateStore {};
+        IdentityAnnouncedCb identityAnnouncedCb {};
         Context() {}
     };
 
@@ -97,7 +101,7 @@ public:
     template <class T>
     void get(InfoHash hash, std::function<bool(std::vector<T>&&)> cb, DoneCallbackSimple dcb={})
     {
-        get(hash, [=](const std::vector<std::shared_ptr<Value>>& vals) {
+        get(hash, [cb=std::move(cb)](const std::vector<std::shared_ptr<Value>>& vals) {
             return cb(unpackVector<T>(vals));
         },
         dcb,
@@ -106,7 +110,7 @@ public:
     template <class T>
     void get(InfoHash hash, std::function<bool(T&&)> cb, DoneCallbackSimple dcb={})
     {
-        get(hash, [=](const std::vector<std::shared_ptr<Value>>& vals) {
+        get(hash, [cb=std::move(cb)](const std::vector<std::shared_ptr<Value>>& vals) {
             for (const auto& v : vals) {
                 try {
                     if (not cb(Value::unpack<T>(*v)))
@@ -155,7 +159,7 @@ public:
     std::future<size_t> listen(InfoHash key, ValueCallback vcb, Value::Filter f = {}, Where w = {});
 
     std::future<size_t> listen(InfoHash key, GetCallback cb, Value::Filter f={}, Where w={}) {
-        return listen(key, [cb](const std::vector<Sp<Value>>& vals, bool expired){
+        return listen(key, [cb=std::move(cb)](const std::vector<Sp<Value>>& vals, bool expired){
             if (not expired)
                 return cb(vals);
             return true;
@@ -169,7 +173,7 @@ public:
     template <class T>
     std::future<size_t> listen(InfoHash hash, std::function<bool(std::vector<T>&&)> cb)
     {
-        return listen(hash, [=](const std::vector<std::shared_ptr<Value>>& vals) {
+        return listen(hash, [cb=std::move(cb)](const std::vector<std::shared_ptr<Value>>& vals) {
             return cb(unpackVector<T>(vals));
         },
         getFilterSet<T>());
@@ -177,7 +181,7 @@ public:
     template <class T>
     std::future<size_t> listen(InfoHash hash, std::function<bool(std::vector<T>&&, bool)> cb)
     {
-        return listen(hash, [=](const std::vector<std::shared_ptr<Value>>& vals, bool expired) {
+        return listen(hash, [cb=std::move(cb)](const std::vector<std::shared_ptr<Value>>& vals, bool expired) {
             return cb(unpackVector<T>(vals), expired);
         },
         getFilterSet<T>());
@@ -186,7 +190,7 @@ public:
     template <typename T>
     std::future<size_t> listen(InfoHash hash, std::function<bool(T&&)> cb, Value::Filter f = {}, Where w = {})
     {
-        return listen(hash, [=](const std::vector<std::shared_ptr<Value>>& vals) {
+        return listen(hash, [cb=std::move(cb)](const std::vector<std::shared_ptr<Value>>& vals) {
             for (const auto& v : vals) {
                 try {
                     if (not cb(Value::unpack<T>(*v)))
@@ -202,7 +206,7 @@ public:
     template <typename T>
     std::future<size_t> listen(InfoHash hash, std::function<bool(T&&, bool)> cb, Value::Filter f = {}, Where w = {})
     {
-        return listen(hash, [=](const std::vector<std::shared_ptr<Value>>& vals, bool expired) {
+        return listen(hash, [cb=std::move(cb)](const std::vector<std::shared_ptr<Value>>& vals, bool expired) {
             for (const auto& v : vals) {
                 try {
                     if (not cb(Value::unpack<T>(*v), expired))
@@ -255,18 +259,29 @@ public:
     }
     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.
-     * Usefull to restart a node and get things running fast without putting load on the network.
-     */
-    void bootstrap(std::vector<SockAddr> nodes, DoneCallbackSimple&& cb={});
-    void bootstrap(const SockAddr& addr, DoneCallbackSimple&& cb={});
+    void putEncrypted(InfoHash hash, const std::shared_ptr<crypto::PublicKey>& to, std::shared_ptr<Value> value, DoneCallback cb={}, bool permanent = false);
+    void putEncrypted(InfoHash hash, const std::shared_ptr<crypto::PublicKey>& to, std::shared_ptr<Value> value, DoneCallbackSimple cb, bool permanent = false) {
+        putEncrypted(hash, to, value, bindDoneCb(cb), permanent);
+    }
+
+    void putEncrypted(InfoHash hash, const std::shared_ptr<crypto::PublicKey>& to, Value&& value, DoneCallback cb={}, bool permanent = false);
+    void putEncrypted(InfoHash hash, const std::shared_ptr<crypto::PublicKey>& to, Value&& value, DoneCallbackSimple cb, bool permanent = false) {
+        putEncrypted(hash, to, std::forward<Value>(value), bindDoneCb(cb), permanent);
+    }
+
 
     /**
      * Insert known nodes to the routing table, without necessarly ping them.
      * Usefull to restart a node and get things running fast without putting load on the network.
      */
-    void bootstrap(const std::vector<NodeExport>& nodes);
+    void bootstrap(std::vector<SockAddr> nodes, DoneCallbackSimple cb={});
+    void bootstrap(SockAddr addr, DoneCallbackSimple cb={});
+
+    /**
+     * Insert known nodes to the routing table, without necessarly ping them.
+     * Usefull to restart a node and get things running fast without putting load on the network.
+     */
+    void bootstrap(std::vector<NodeExport> nodes);
 
     /**
      * Add host:service to bootstrap nodes, and ping this node.
@@ -301,6 +316,7 @@ public:
      * Get the public key fingerprint if an identity is used with this node, 0 otherwise.
      */
     InfoHash getId() const;
+    std::shared_ptr<crypto::PublicKey> getPublicKey() const;
 
     /**
      * Get the ID of the DHT node.
@@ -321,13 +337,17 @@ public:
 
     std::pair<size_t, size_t> getStoreSize() const;
 
+    void getStorageLimit() const;
     void setStorageLimit(size_t limit = DEFAULT_STORAGE_LIMIT);
 
     std::vector<NodeExport> exportNodes() const;
 
     std::vector<ValuesExport> exportValues() const;
 
-    void setLogger(const Logger& logger = {});
+    void setLogger(const Sp<Logger>& logger = {});
+    void setLogger(const Logger& logger) {
+        setLogger(std::make_shared<Logger>(logger));
+    }
     void setLoggers(LogMethod err = {}, LogMethod warn = {}, LogMethod debug = {});
 
     /**
@@ -346,6 +366,7 @@ public:
     NodeStats getNodesStats(sa_family_t af) const;
     unsigned getNodesStats(sa_family_t af, unsigned *good_return, unsigned *dubious_return, unsigned *cached_return, unsigned *incoming_return) const;
     NodeInfo getNodeInfo() const;
+    void getNodeInfo(std::function<void(std::shared_ptr<NodeInfo>)>);
 
     std::vector<unsigned> getNodeMessageStats(bool in = false) const;
     std::string getStorageLog() const;
@@ -353,8 +374,9 @@ public:
     std::string getRoutingTablesLog(sa_family_t af) const;
     std::string getSearchesLog(sa_family_t af = AF_UNSPEC) const;
     std::string getSearchLog(const InfoHash&, sa_family_t af = AF_UNSPEC) const;
-    std::vector<SockAddr> getPublicAddress(sa_family_t af = AF_UNSPEC);
-    std::vector<std::string> getPublicAddressStr(sa_family_t af = AF_UNSPEC);
+    std::vector<SockAddr> getPublicAddress(sa_family_t af = AF_UNSPEC) const;
+    std::vector<std::string> getPublicAddressStr(sa_family_t af = AF_UNSPEC) const;
+    void getPublicAddress(std::function<void(std::vector<SockAddr>&&)>, sa_family_t af = AF_UNSPEC);
 
     // securedht methods
 
@@ -375,22 +397,12 @@ public:
         config.threaded = threaded;
         run(port, config);
     }
-    void run(in_port_t port, const Config& config, Context&& context = {});
-
-    /**
-     * @param local4: Local IPv4 address and port to bind. Can be null.
-     * @param local6: Local IPv6 address and port to bind. Can be null.
-     *         You should allways bind to a global IPv6 address.
-     * @param identity: RSA key pair to use for cryptographic operations.
-     * @param threaded: If false, loop() must be called periodically. Otherwise a thread is launched.
-     * @param cb: Optional callback to receive general state information.
-     */
-    void run(const SockAddr& local4, const SockAddr& local6, const Config& config, Context&& context = {});
+    void run(in_port_t port, Config& config, Context&& context = {});
 
     /**
      * Same as @run(sockaddr_in, sockaddr_in6, Identity, bool, StatusCallback), but with string IP addresses and service (port).
      */
-    void run(const char* ip4, const char* ip6, const char* service, const Config& config, Context&& context = {});
+    void run(const char* ip4, const char* ip6, const char* service, Config& config, Context&& context = {});
 
     void run(const Config& config, Context&& context);
 
@@ -411,7 +423,7 @@ public:
     /**
      * Gracefuly disconnect from network.
      */
-    void shutdown(ShutdownCallback cb = {});
+    void shutdown(ShutdownCallback cb = {}, bool stop = false);
 
     /**
      * Quit and wait for all threads to terminate.
@@ -427,7 +439,6 @@ public:
     /**
      * Start or stop the proxy
      * @param proxify if we want to use the proxy
-     * @param deviceKey non empty to enable push notifications
      */
     void enableProxy(bool proxify);
 
@@ -438,6 +449,16 @@ public:
      */
     void setPushNotificationToken(const std::string& token);
 
+     /**
+     * Sets the push notification topic
+     */
+    void setPushNotificationTopic(const std::string& topic);
+
+     /**
+     * Sets the push notification platform
+     */
+    void setPushNotificationPlatform(const std::string& platform);
+
     /**
      * Insert a push notification to process for OpenDHT
      */
@@ -447,22 +468,12 @@ public:
     void forwardAllMessages(bool forward);
 
 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
-     * nodes so that the DHT node can recover quickly from losing connection
-     * with the network.
-     */
-    void tryBootstrapContinuously();
-
     time_point loop_();
 
     NodeStatus getStatus() const {
@@ -474,48 +485,27 @@ private:
     DoneCallback bindOpDoneCallback(DoneCallback&& cb);
     DoneCallbackSimple bindOpDoneCallback(DoneCallbackSimple&& cb);
 
-    /** Local DHT instance */
+    /** DHT instance */
     std::unique_ptr<SecureDht> dht_;
 
-    /** Proxy client instance */
-    std::unique_ptr<SecureDht> dht_via_proxy_;
-
     /** true if we are currently using a proxy */
     std::atomic_bool use_proxy {false};
 
     /** Current configuration */
     Config config_;
+    IdentityAnnouncedCb identityAnnouncedCb_;
 
     /**
      * reset dht clients
      */
     void resetDht();
-    /**
-     * @return the current active DHT
-     */
-    SecureDht* activeDht() const;
-
-    /**
-     * Store current listeners and translates global tokens for each client.
-     */
-    struct Listener;
-    std::map<size_t, Listener> listeners_;
-    size_t listener_token_ {1};
 
     mutable std::mutex dht_mtx {};
     std::thread dht_thread {};
     std::condition_variable cv {};
     std::mutex sock_mtx {};
-    std::queue<std::unique_ptr<net::ReceivedPacket>> rcv {};
-
-    /** true if currently actively boostraping */
-    std::atomic_bool bootstraping {false};
-    /* bootstrap nodes given as (host, service) pairs */
-    std::vector<std::pair<std::string,std::string>> bootstrap_nodes_all {};
-    std::vector<std::pair<std::string,std::string>> bootstrap_nodes {};
-    std::thread bootstrap_thread {};
-    std::mutex bootstrap_mtx {};
-    std::condition_variable bootstrap_cv {};
+    net::PacketList rcv {};
+    decltype(rcv) rcv_free {};
 
     std::queue<std::function<void(SecureDht&)>> pending_ops_prio {};
     std::queue<std::function<void(SecureDht&)>> pending_ops {};

include/opendht/http.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2016-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -35,6 +35,7 @@
 
 #include <memory>
 #include <queue>
+#include <mutex>
 
 namespace Json {
 class Value;
@@ -71,15 +72,17 @@ using socket_t = asio::ip::tcp::socket;
 class OPENDHT_PUBLIC Url
 {
 public:
-    Url(){};
+    Url() = default;
     Url(const std::string& url);
     std::string url;
     std::string protocol {"http"};
     std::string host;
-    std::string service {"80"};
-    std::string target {"/"};
+    std::string service;
+    std::string target;
     std::string query;
     std::string fragment;
+
+    std::string toString() const;
 };
 
 class OPENDHT_PUBLIC Connection : public std::enable_shared_from_this<Connection>
@@ -93,8 +96,9 @@ public:
     inline unsigned int id() const { return  id_; };
     bool is_open() const;
     bool is_ssl() const;
+    void checkOcsp(bool check = true) { checkOcsp_ = check; }
 
-    void set_ssl_verification(const asio::ip::tcp::endpoint& endpoint, const asio::ssl::verify_mode verify_mode);
+    void set_ssl_verification(const std::string& hostname, const asio::ssl::verify_mode verify_mode);
 
     asio::streambuf& input();
     std::istream& data() { return istream_; }
@@ -110,18 +114,23 @@ public:
     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 = {});
+    const asio::ip::address& local_address() const;
+
+    void timeout(const std::chrono::seconds& timeout, HandlerCb cb = {});
+
     void close();
 
 private:
 
     template<typename T>
-    T wrapCallabck(T cb) const {
+    T wrapCallback(T cb) const {
         return [t=shared_from_this(),cb=std::move(cb)](auto ...params) {
             cb(params...);
         };
     }
 
+    mutable std::mutex mutex_;
+
     unsigned int id_;
     static std::atomic_uint ids_;
 
@@ -136,8 +145,11 @@ private:
     asio::streambuf read_buf_;
     std::istream istream_;
 
+    asio::ip::address local_address_;
+
     std::unique_ptr<asio::steady_timer> timeout_timer_;
     std::shared_ptr<dht::Logger> logger_;
+    bool checkOcsp_ {false};
 };
 
 /**
@@ -185,7 +197,7 @@ public:
 private:
     void resolve(const std::string& host, const std::string& service);
 
-    std::mutex mutex_;
+    mutable std::mutex mutex_;
 
     Url url_;
     asio::error_code ec_;
@@ -199,12 +211,15 @@ private:
     std::shared_ptr<dht::Logger> logger_;
 };
 
+class Request;
+
 struct Response
 {
-    unsigned int status_code {0};
+    unsigned status_code {0};
     std::map<std::string, std::string> headers;
     std::string body;
     bool aborted {false};
+    std::weak_ptr<Request> request;
 };
 
 class OPENDHT_PUBLIC Request : public std::enable_shared_from_this<Request>
@@ -217,15 +232,18 @@ public:
         RECEIVING,
         DONE
     };
-    using OnStatusCb = std::function<void(unsigned int status_code)>;
+    using OnStatusCb = std::function<void(unsigned status_code)>;
     using OnDataCb = std::function<void(const char* at, size_t length)>;
     using OnStateChangeCb = std::function<void(State state, const Response& response)>;
-    using OnJsonCb = std::function<void(Json::Value value, unsigned int status_code)>;
+    using OnJsonCb = std::function<void(Json::Value value, const Response& response)>;
     using OnDoneCb = std::function<void(const Response& response)>;
 
     // resolves implicitly
     Request(asio::io_context& ctx, const std::string& url, const Json::Value& json, OnJsonCb jsoncb,
             std::shared_ptr<dht::Logger> logger = {});
+    Request(asio::io_context& ctx, const std::string& url, OnJsonCb jsoncb,
+            std::shared_ptr<dht::Logger> logger = {});
+
     Request(asio::io_context& ctx, const std::string& url, std::shared_ptr<dht::Logger> logger = {});
     Request(asio::io_context& ctx, const std::string& host, const std::string& service,
             const bool ssl = false, std::shared_ptr<dht::Logger> logger = {});
@@ -247,6 +265,17 @@ public:
     inline const Url& get_url() const {
         return resolver_->get_url();
     };
+
+    void timeout(const std::chrono::seconds& timeout, HandlerCb cb = {}) {
+        timeout_ = timeout;
+        timeoutCb_ = cb;
+    }
+
+    /** The previous request in case of redirect following */
+    std::shared_ptr<Request> getPrevious() const {
+        return prev_.lock();
+    }
+
     inline std::string& to_string() {
         return request_;
     }
@@ -273,10 +302,14 @@ public:
 
     void send();
 
+    /** Send and block for response */
+    const Response& await();
+
     /**
      * User action to cancel the Request and call the completion callbacks.
      */
     void cancel();
+    void terminate(const asio::error_code& ec);
 
 private:
     using OnCompleteCb = std::function<void()>;
@@ -289,6 +322,8 @@ private:
         OnStateChangeCb on_state_change;
     };
 
+    static std::string getRelativePath(const Url& origin, const std::string& path);
+
     void notify_state_change(State state);
 
     void build();
@@ -301,8 +336,6 @@ private:
 
     void connect(std::vector<asio::ip::tcp::endpoint>&& endpoints, HandlerCb cb = {});
 
-    void terminate(const asio::error_code& ec);
-
     void post();
 
     void handle_request(const asio::error_code& ec);
@@ -312,6 +345,8 @@ private:
     void onBody(const char* at, size_t length);
     void onComplete();
 
+    mutable std::mutex mutex_;
+
     std::shared_ptr<dht::Logger> logger_;
 
     restinio::http_request_header_t header_;
@@ -339,20 +374,17 @@ private:
     std::atomic<bool> finishing_ {false};
     std::unique_ptr<http_parser> parser_;
     std::unique_ptr<http_parser_settings> parser_s_;
+
+    // Next request in case of redirect following
+    std::shared_ptr<Request> next_;
+    std::weak_ptr<Request> prev_;
+    unsigned num_redirect {0};
+    bool follow_redirect {true};
+
+    HandlerCb timeoutCb_ {};
+    std::chrono::seconds timeout_ {0};
 };
 
 } // namespace http
 } // namespace dht
 
-#ifdef OPENDHT_PROXY_HTTP_PARSER_FORK
-namespace restinio
-{
-/* Custom HTTP-methods for RESTinio > 0.5.0.
- * https://github.com/Stiffstream/restinio/issues/26
- */
-constexpr const restinio::http_method_id_t method_listen {HTTP_LISTEN, "LISTEN"};
-constexpr const restinio::http_method_id_t method_stats {HTTP_STATS, "STATS"};
-constexpr const restinio::http_method_id_t method_sign {HTTP_SIGN, "SIGN"};
-constexpr const restinio::http_method_id_t method_encrypt {HTTP_ENCRYPT, "ENCRYPT"};
-} // namespace restinio
-#endif

include/opendht/indexation/pht.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *              Nicolas Reynaud <nicolas.reynaud@savoirfairelinux.com>
@@ -335,7 +335,7 @@ public:
     void lookup(Key k, LookupCallback cb = {}, DoneCallbackSimple done_cb = {}, bool exact_match = true);
     void lookup(Key k, LookupCallbackSimple cb = {}, DoneCallbackSimple done_cb = {}, bool exact_match = true)
     {
-        lookup(k, [=](std::vector<std::shared_ptr<Value>>& values, Prefix) { cb(values); }, done_cb, exact_match);
+        lookup(k, [cb=std::move(cb)](std::vector<std::shared_ptr<Value>>& values, Prefix) { cb(values); }, done_cb, exact_match);
     }
 
     /**

include/opendht/infohash.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -40,10 +40,12 @@ typedef uint16_t in_port_t;
 #include <iomanip>
 #include <array>
 #include <vector>
+#include <string_view>
 #include <algorithm>
 #include <stdexcept>
 #include <sstream>
 #include <cstring>
+#include <cstddef>
 
 namespace dht {
 
@@ -54,9 +56,9 @@ namespace crypto {
 }
 
 /**
- * Represents an InfoHash.
- * An InfoHash is a byte array of HASH_LEN bytes.
- * InfoHashes identify nodes and values in the Dht.
+ * Represents an Hash,
+ * a byte array of N bytes.
+ * Hashes identify nodes and values in the Dht.
  */
 template <size_t N>
 class OPENDHT_PUBLIC Hash {
@@ -65,10 +67,10 @@ public:
     typedef typename T::iterator iterator;
     typedef typename T::const_iterator const_iterator;
 
-    Hash () noexcept {
+    Hash() noexcept {
         data_.fill(0);
     }
-    Hash (const uint8_t* h, size_t data_len) {
+    Hash(const uint8_t* h, size_t data_len) {
         if (data_len < N)
             data_.fill(0);
         else
@@ -79,7 +81,12 @@ public:
      * hex must be at least 2.HASH_LEN characters long.
      * If too long, only the first 2.HASH_LEN characters are read.
      */
-    explicit Hash(const std::string& hex);
+    explicit Hash(std::string_view hex) {
+        if (hex.size() < 2*N)
+            data_.fill(0);
+        else
+            fromString(hex.data());
+    }
 
     Hash(const msgpack::object& o) {
         msgpack_unpack(o);
@@ -93,14 +100,10 @@ public:
     iterator end() { return data_.end(); }
     const_iterator cend() const { return data_.cend(); }
 
+    static constexpr inline Hash zero() noexcept { return Hash{}; }
+
     bool operator==(const Hash& h) const {
-        auto a = reinterpret_cast<const uint32_t*>(data_.data());
-        auto b = reinterpret_cast<const uint32_t*>(h.data_.data());
-        constexpr unsigned n = N / sizeof(uint32_t);
-        for (unsigned i=0; i < n; i++)
-            if (a[i] != b[i])
-                return false;
-        return true;
+        return data_ == h.data_;
     }
     bool operator!=(const Hash& h) const { return !(*this == h); }
 
@@ -112,6 +115,14 @@ public:
         return false;
     }
 
+    Hash operator^(const Hash& o) const {
+        Hash result;
+        for(auto i = 0u; i < N; i++) {
+            result[i] = data_[i] ^ o.data_[i];
+        }
+        return result;
+    }
+
     explicit operator bool() const {
         auto a = reinterpret_cast<const uint32_t*>(data_.data());
         auto b = reinterpret_cast<const uint32_t*>(data_.data() + N);
@@ -142,10 +153,6 @@ public:
         return 8 * i + j;
     }
 
-    /**
-     * Forget about the ``XOR-metric''.  An id is just a path from the
-     * root of the tree, so bits are numbered from the start.
-     */
     static inline int cmp(const Hash& id1, const Hash& id2) {
         return std::memcmp(id1.data_.data(), id2.data_.data(), N);
     }
@@ -179,16 +186,12 @@ public:
     int
     xorCmp(const Hash& id1, const Hash& id2) const
     {
-        for(unsigned i = 0; i < N; i++) {
-            uint8_t xor1, xor2;
+        for (unsigned i = 0; i < N; i++) {
             if(id1.data_[i] == id2.data_[i])
                 continue;
-            xor1 = id1.data_[i] ^ data_[i];
-            xor2 = id2.data_[i] ^ data_[i];
-            if(xor1 < xor2)
-                return -1;
-            else
-                return 1;
+            uint8_t xor1 = id1.data_[i] ^ data_[i];
+            uint8_t xor2 = id2.data_[i] ^ data_[i];
+            return (xor1 < xor2) ? -1 : 1;
         }
         return 0;
     }
@@ -217,7 +220,7 @@ public:
         return v;
     }
 
-    static inline Hash get(const std::string& data) {
+    static inline Hash get(std::string_view data) {
         return get((const uint8_t*)data.data(), data.size());
     }
 
@@ -237,12 +240,17 @@ public:
 
     static Hash getRandom();
 
+    template <typename Rd>
+    static Hash getRandom(Rd&);
+
     template <size_t M>
     OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const Hash<M>& h);
 
     template <size_t M>
     OPENDHT_PUBLIC friend std::istream& operator>> (std::istream& s, Hash<M>& h);
 
+    /** Returns view to thread-allocated memory, only valid until the next call to this function. */
+    std::string_view to_view() const { return std::string_view(to_c_str(), N*2); }
     const char* to_c_str() const;
 
     std::string toString() const;
@@ -286,14 +294,6 @@ std::istream& operator>> (std::istream& s, Hash<N>& h)
     return s;
 }
 
-template <size_t N>
-Hash<N>::Hash(const std::string& hex) {
-    if (hex.size() < 2*N)
-        data_.fill(0);
-    else
-        fromString(hex.c_str());
-}
-
 template <size_t N>
 void
 Hash<N>::fromString(const char* in) {
@@ -324,7 +324,20 @@ Hash<N>::getRandom()
     return h;
 }
 
-struct HexMap : public std::array<std::array<char, 2>, 256> {
+template <size_t N>
+template <typename Rd>
+Hash<N>
+Hash<N>::getRandom(Rd& rdev)
+{
+    Hash h;
+    std::uniform_int_distribution<uint32_t> rand_int;
+    auto a = reinterpret_cast<uint32_t*>(h.data());
+    auto b = reinterpret_cast<uint32_t*>(h.data() + h.size());
+    std::generate(a, b, std::bind(rand_int, std::ref(rdev)));
+    return h;
+}
+
+struct alignas(std::max_align_t) HexMap : public std::array<std::array<char, 2>, 256> {
     HexMap() {
         for (size_t i=0; i<size(); i++) {
             auto& e = (*this)[i];
@@ -338,11 +351,27 @@ private:
 
 OPENDHT_PUBLIC extern const HexMap hex_map;
 
+inline std::string
+toHex(const uint8_t* data, size_t size) {
+    std::string ret(size * 2, '\0');
+    for (size_t i=0; i<size; i++) {
+        auto b = ret.data()+i*2;
+        const auto& m = hex_map[data[i]];
+        *((uint16_t*)b) = *((uint16_t*)&m);
+    }
+    return ret;
+}
+
+inline std::string
+toHex(const std::vector<uint8_t>& data) {
+    return toHex(data.data(), data.size());
+}
+
 template <size_t N>
 const char*
 Hash<N>::to_c_str() const
 {
-    thread_local std::array<char, N*2+1> buf;
+    alignas(std::max_align_t) thread_local std::array<char, N*2+1> buf;
     for (size_t i=0; i<N; i++) {
         auto b = buf.data()+i*2;
         const auto& m = hex_map[data_[i]];
@@ -358,8 +387,6 @@ Hash<N>::toString() const
     return std::string(to_c_str(), N*2);
 }
 
-const InfoHash zeroes {};
-
 struct OPENDHT_PUBLIC NodeExport {
     InfoHash id;
     sockaddr_storage ss;

include/opendht/log.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *
  *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *

include/opendht/log_enable.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2016-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -64,7 +64,7 @@ struct LogMethod {
         func(format, args);
         va_end(args);
     }
-    void log(char const* format, va_list args) const {
+    inline void log(char const* format, va_list args) const {
         func(format, args);
     }
     explicit operator bool() const {
@@ -82,13 +82,13 @@ private:
 };
 
 struct Logger {
-    LogMethod DBG = {};
-    LogMethod WARN = {};
     LogMethod ERR = {};
+    LogMethod WARN = {};
+    LogMethod DBG = {};
 
     Logger() = default;
     Logger(LogMethod&& err, LogMethod&& warn, LogMethod&& dbg)
-        : DBG(std::move(dbg)), WARN(std::move(warn)), ERR(std::move(err)) {}
+        : ERR(std::move(err)), WARN(std::move(warn)), DBG(std::move(dbg)) {}
     void setFilter(const InfoHash& f) {
         filter_ = f;
         filterEnable_ = static_cast<bool>(filter_);

include/opendht/network_engine.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *
@@ -180,7 +180,8 @@ private:
             const InfoHash&,
             const Blob&,
             Tid,
-            const Query&)> onListen {};
+            const Query&,
+            int)> onListen {};
     /**
      * Called on announce request.
      *
@@ -210,14 +211,15 @@ private:
 
 public:
     using RequestCb = std::function<void(const Request&, RequestAnswer&&)>;
+    using RequestErrorCb = std::function<bool(const Request&, DhtProtocolException&&)>;
     using RequestExpiredCb = std::function<void(const Request&, bool)>;
 
-    NetworkEngine(Logger& log, Scheduler& scheduler, std::unique_ptr<DatagramSocket>&& sock);
     NetworkEngine(
             InfoHash& myid,
             NetworkConfig config,
             std::unique_ptr<DatagramSocket>&& sock,
-            Logger& log,
+            const Sp<Logger>& log,
+            std::mt19937_64& rd,
             Scheduler& scheduler,
             decltype(NetworkEngine::onError)&& onError,
             decltype(NetworkEngine::onNewNode)&& onNewNode,
@@ -236,9 +238,10 @@ public:
     void clear();
 
     /**
-     * Sends values (with closest nodes) to a listenner.
+     * Sends values (with closest nodes) to a listener.
      *
-     * @param sa          The address of the listenner.
+     * @deprecated
+     * @param sa          The address of the listener.
      * @param sslen       The length of the sockaddr structure.
      * @param socket_id  The tid to use to write to the request socket.
      * @param hash        The hash key of the value.
@@ -247,13 +250,14 @@ public:
      * @param nodes       The ipv4 closest nodes.
      * @param nodes6      The ipv6 closest nodes.
      * @param values      The values to send.
+     * @param version     If version = 1, a request will be used to answer to the listener
      */
-    void tellListener(Sp<Node> n, Tid socket_id, const InfoHash& hash, want_t want, const Blob& ntoken,
+    void tellListener(const Sp<Node>& n, Tid socket_id, const InfoHash& hash, want_t want, const Blob& ntoken,
             std::vector<Sp<Node>>&& nodes, std::vector<Sp<Node>>&& nodes6,
-            std::vector<Sp<Value>>&& values, const Query& q);
+            std::vector<Sp<Value>>&& values, const Query& q, int version);
 
-    void tellListenerRefreshed(Sp<Node> n, Tid socket_id, const InfoHash& hash, const Blob& ntoken, const std::vector<Value::Id>& values);
-    void tellListenerExpired(Sp<Node> n, Tid socket_id, const InfoHash& hash, const Blob& ntoken, const std::vector<Value::Id>& values);
+    void tellListenerRefreshed(const Sp<Node>& n, Tid socket_id, const InfoHash& hash, const Blob& ntoken, const std::vector<Value::Id>& values, int version);
+    void tellListenerExpired(const Sp<Node>& n, Tid socket_id, const InfoHash& hash, const Blob& ntoken, const std::vector<Value::Id>& values, int version);
 
     bool isRunning(sa_family_t af) const;
     inline want_t want () const { return dht_socket->hasIPv4() and dht_socket->hasIPv6() ? (WANT4 | WANT6) : -1; }
@@ -274,7 +278,8 @@ public:
      * @return the request with information concerning its success.
      */
     Sp<Request>
-        sendPing(Sp<Node> n, RequestCb&& on_done, RequestExpiredCb&& on_expired);
+    sendPing(const Sp<Node>& n, RequestCb&& on_done, RequestExpiredCb&& on_expired);
+
     /**
      * Send a "ping" request to a given node.
      *
@@ -286,11 +291,12 @@ public:
      * @return the request with information concerning its success.
      */
     Sp<Request>
-        sendPing(SockAddr&& sa, RequestCb&& on_done, RequestExpiredCb&& on_expired) {
-            return sendPing(std::make_shared<Node>(zeroes, std::move(sa)),
-                    std::forward<RequestCb>(on_done),
-                    std::forward<RequestExpiredCb>(on_expired));
-        }
+    sendPing(SockAddr&& sa, RequestCb&& on_done, RequestExpiredCb&& on_expired) {
+        return sendPing(std::make_shared<Node>(InfoHash::zero(), std::move(sa), rd),
+                std::forward<RequestCb>(on_done),
+                std::forward<RequestExpiredCb>(on_expired));
+    }
+
     /**
      * Send a "find node" request to a given node.
      *
@@ -303,7 +309,7 @@ public:
      *
      * @return the request with information concerning its success.
      */
-    Sp<Request> sendFindNode(Sp<Node> n,
+    Sp<Request> sendFindNode(const Sp<Node>& n,
                              const InfoHash& hash,
                              want_t want = -1,
                              RequestCb&& on_done = {},
@@ -322,7 +328,7 @@ public:
      *
      * @return the request with information concerning its success.
      */
-    Sp<Request> sendGetValues(Sp<Node> n,
+    Sp<Request> sendGetValues(const Sp<Node>& n,
                               const InfoHash& hash,
                               const Query& query,
                               want_t want,
@@ -351,14 +357,13 @@ public:
      *
      * @return the request with information concerning its success.
      */
-    Sp<Request> sendListen(Sp<Node> n,
+    Sp<Request> sendListen(const Sp<Node>& n,
                            const InfoHash& hash,
                            const Query& query,
                            const Blob& token,
-                           Sp<Request> previous,
+                           Tid socketId,
                            RequestCb&& on_done,
-                           RequestExpiredCb&& on_expired,
-                           SocketCb&& socket_cb);
+                           RequestExpiredCb&& on_expired);
     /**
      * Send a "announce" request to a given node.
      *
@@ -372,7 +377,7 @@ public:
      *
      * @return the request with information concerning its success.
      */
-    Sp<Request> sendAnnounceValue(Sp<Node> n,
+    Sp<Request> sendAnnounceValue(const Sp<Node>& n,
                                   const InfoHash& hash,
                                   const Sp<Value>& v,
                                   time_point created,
@@ -392,12 +397,31 @@ public:
      *
      * @return the request with information concerning its success.
      */
-    Sp<Request> sendRefreshValue(Sp<Node> n,
+    Sp<Request> sendRefreshValue(const Sp<Node>& n,
                                  const InfoHash& hash,
                                  const Value::Id& vid,
                                  const Blob& token,
                                  RequestCb&& on_done,
+                                 RequestErrorCb&& on_error,
                                  RequestExpiredCb&& on_expired);
+    /**
+     * Send a "update" request to a given node. Used for Listen operations
+     *
+     * @param n           The node.
+     * @param hash        The target hash.
+     * @param values      The values.
+     * @param created     Time id.
+     * @param token       A security token.
+     * @param sid         The socket id.
+     *
+     * @return the request with information concerning its success.
+     */
+    Sp<Request> sendUpdateValues(const Sp<Node>& n,
+                                 const InfoHash& infohash,
+                                 const std::vector<Sp<Value>>& values,
+                                 time_point created,
+                                 const Blob& token,
+                                 const size_t& sid);
 
     /**
      * Parses a message and calls appropriate callbacks.
@@ -410,8 +434,8 @@ public:
      */
     void processMessage(const uint8_t *buf, size_t buflen, SockAddr addr);
 
-    Sp<Node> insertNode(const InfoHash& myid, const SockAddr& addr) {
-        auto n = cache.getNode(myid, addr, scheduler.time(), 0);
+    Sp<Node> insertNode(const InfoHash& id, const SockAddr& addr) {
+        auto n = cache.getNode(id, addr, scheduler.time(), 0);
         onNewNode(n, 0);
         return n;
     }
@@ -429,6 +453,21 @@ public:
         return cache.getCachedNodes(id, sa_f, count);
     }
 
+    size_t getNodeCacheSize() const {
+        return cache.size();
+    }
+    size_t getNodeCacheSize(sa_family_t af) const {
+        return cache.size(af);
+    }
+
+    size_t getRateLimiterSize() const {
+        return address_rate_limiter.size();
+    }
+
+    size_t getPartialCount() const {
+        return partial_messages.size();
+    }
+
 private:
 
     struct PartialMessage;
@@ -472,19 +511,20 @@ private:
     void sendRequest(const Sp<Request>& request);
 
     struct MessageStats {
-        unsigned ping    {0};
-        unsigned find    {0};
-        unsigned get     {0};
-        unsigned put     {0};
-        unsigned listen  {0};
-        unsigned refresh {0};
+        unsigned ping         {0};
+        unsigned find         {0};
+        unsigned get          {0};
+        unsigned put          {0};
+        unsigned listen       {0};
+        unsigned refresh      {0};
+        unsigned updateValue  {0};
     };
 
 
     // basic wrapper for socket sendto function
     int send(const SockAddr& addr, const char *buf, size_t len, bool confirmed = false);
 
-    void sendValueParts(const TransId& tid, const std::vector<Blob>& svals, const SockAddr& addr);
+    void sendValueParts(Tid tid, const std::vector<Blob>& svals, const SockAddr& addr);
     std::vector<Blob> packValueHeader(msgpack::sbuffer&, const std::vector<Sp<Value>>&);
     void maintainRxBuffer(Tid tid);
 
@@ -525,9 +565,10 @@ private:
     const InfoHash& myid;
     const NetworkConfig config {};
     const std::unique_ptr<DatagramSocket> dht_socket;
-    const Logger& DHT_LOG;
+    Sp<Logger> logger_;
+    std::mt19937_64& rd;
 
-    NodeCache cache {};
+    NodeCache cache;
 
     // global limiting should be triggered by at least 8 different IPs
     using IpLimiter = RateLimiter;

include/opendht/network_utils.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -36,11 +36,14 @@
 #include <thread>
 #include <atomic>
 #include <mutex>
+#include <list>
 
 namespace dht {
 namespace net {
 
 static const constexpr in_port_t DHT_DEFAULT_PORT = 4222;
+static const constexpr size_t RX_QUEUE_MAX_SIZE = 1024 * 64;
+static const constexpr std::chrono::milliseconds RX_QUEUE_MAX_DELAY(650);
 
 int bindSocket(const SockAddr& addr, SockAddr& bound);
 
@@ -54,10 +57,14 @@ struct ReceivedPacket {
     SockAddr from;
     time_point received;
 };
+using PacketList = std::list<ReceivedPacket>;
 
 class OPENDHT_PUBLIC DatagramSocket {
 public:
-    using OnReceive = std::function<void(std::unique_ptr<ReceivedPacket>&& packet)>;
+    /** A function that takes a list of new received packets and
+     *  optionally returns consumed packets for recycling.
+     **/
+    using OnReceive = std::function<PacketList(PacketList&& packets)>;
     virtual ~DatagramSocket() {};
 
     virtual int sendTo(const SockAddr& dest, const uint8_t* data, size_t size, bool replied) = 0;
@@ -81,24 +88,45 @@ public:
 
     virtual const SockAddr& getBoundRef(sa_family_t family = AF_UNSPEC) const = 0;
 
+    /** Virtual resolver mothod allows to implement custom resolver */
+    virtual std::vector<SockAddr> resolve(const std::string& host, const std::string& service = {}) {
+        return SockAddr::resolve(host, service);
+    }
+
     virtual void stop() = 0;
 protected:
 
-    inline void onReceived(std::unique_ptr<ReceivedPacket>&& packet) {
+    PacketList getNewPacket() {
+        PacketList pkts;
+        if (toRecycle_.empty()) {
+            pkts.emplace_back();
+        } else {
+            auto begIt = toRecycle_.begin();
+            auto begItNext = std::next(begIt);
+            pkts.splice(pkts.end(), toRecycle_, begIt, begItNext);
+        }
+        return pkts;
+    }
+
+    inline void onReceived(PacketList&& packets) {
         std::lock_guard<std::mutex> lk(lock);
-        if (rx_callback)
-            rx_callback(std::move(packet));
+        if (rx_callback) {
+            auto r = rx_callback(std::move(packets));
+            if (not r.empty() and toRecycle_.size() < RX_QUEUE_MAX_SIZE)
+                toRecycle_.splice(toRecycle_.end(), std::move(r));
+        }
     }
 protected:
     mutable std::mutex lock;
 private:
     OnReceive rx_callback;
+    PacketList toRecycle_;
 };
 
 class OPENDHT_PUBLIC UdpSocket : public DatagramSocket {
 public:
-    UdpSocket(in_port_t port, const Logger& l = {});
-    UdpSocket(const SockAddr& bind4, const SockAddr& bind6, const Logger& l = {});
+    UdpSocket(in_port_t port, const std::shared_ptr<Logger>& l = {});
+    UdpSocket(const SockAddr& bind4, const SockAddr& bind6, const std::shared_ptr<Logger>& l = {});
     ~UdpSocket();
 
     int sendTo(const SockAddr& dest, const uint8_t* data, size_t size, bool replied) override;
@@ -118,7 +146,7 @@ public:
 
     void stop() override;
 private:
-    Logger logger;
+    std::shared_ptr<Logger> logger;
     int s4 {-1};
     int s6 {-1};
     int stopfd {-1};

include/opendht/node.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *
@@ -47,10 +47,10 @@ struct Socket {
 struct Node {
     const InfoHash id;
 
-    Node(const InfoHash& id, const SockAddr& addr, bool client=false);
-    Node(const InfoHash& id, SockAddr&& addr, bool client=false);
-    Node(const InfoHash& id, const sockaddr* sa, socklen_t salen)
-        : Node(id, SockAddr(sa, salen)) {}
+    Node(const InfoHash& id, const SockAddr& addr, std::mt19937_64& rd, bool client=false);
+    Node(const InfoHash& id, SockAddr&& addr, std::mt19937_64& rd, bool client=false);
+    Node(const InfoHash& id, const sockaddr* sa, socklen_t salen, std::mt19937_64& rd)
+        : Node(id, SockAddr(sa, salen), rd) {}
 
     InfoHash getId() const {
         return id;

include/opendht/node_cache.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -26,6 +26,13 @@
 namespace dht {
 
 struct NodeCache {
+    size_t size(sa_family_t family) const {
+        return cache(family).count();
+    }
+    size_t size() const {
+        return size(AF_INET) + size(AF_INET6);
+    }
+
     Sp<Node> getNode(const InfoHash& id, sa_family_t family);
     Sp<Node> getNode(const InfoHash& id, const SockAddr&, time_point now, bool confirmed, bool client=false);
     std::vector<Sp<Node>> getCachedNodes(const InfoHash& id, sa_family_t sa_f, size_t count) const;
@@ -37,17 +44,19 @@ struct NodeCache {
      */
     void clearBadNodes(sa_family_t family = 0);
 
+    NodeCache(std::mt19937_64& r) : rd(r) {};
     ~NodeCache();
 
 private:
     class NodeMap : private std::map<InfoHash, std::weak_ptr<Node>> {
     public:
         Sp<Node> getNode(const InfoHash& id);
-        Sp<Node> getNode(const InfoHash& id, const SockAddr&, time_point now, bool confirmed, bool client);
+        Sp<Node> getNode(const InfoHash& id, const SockAddr&, time_point now, bool confirmed, bool client, std::mt19937_64& rd);
         std::vector<Sp<Node>> getCachedNodes(const InfoHash& id, size_t count) const;
         void clearBadNodes();
         void setExpired();
         void cleanup();
+        size_t count() const { return size(); }
     private:
         size_t cleanup_counter {0};
     };
@@ -56,6 +65,7 @@ private:
     NodeMap& cache(sa_family_t af) { return af == AF_INET ? cache_4 : cache_6; }
     NodeMap cache_4;
     NodeMap cache_6;
+    std::mt19937_64& rd;
 };
 
 }

include/opendht/peer_discovery.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author(s) : Mingrui Zhang <mingrui.zhang@savoirfairelinux.com>
  *              Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
  *
@@ -82,6 +82,8 @@ public:
     bool stopPublish(const std::string &type);
     bool stopPublish(sa_family_t domain, const std::string &type);
 
+    void connectivityChanged();
+
 private:
     class DomainPeerDiscovery;
     std::unique_ptr<DomainPeerDiscovery> peerDiscovery4_;

include/opendht/proxy.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2017-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -22,8 +22,8 @@
 namespace dht {
 namespace proxy {
 
-constexpr const std::chrono::seconds OP_TIMEOUT {1 * 60 * 60}; // one hour
-constexpr const std::chrono::seconds OP_MARGIN {5 * 60}; // 5 minutes
+constexpr const std::chrono::hours OP_TIMEOUT {24}; // one day
+constexpr const std::chrono::hours OP_MARGIN {2}; // two hours
 constexpr const char* const HTTP_PROTO {"http://"};
 using ListenToken = uint64_t;
 

include/opendht/rate_limiter.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2017-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify

include/opendht/rng.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -21,6 +21,8 @@
 #include <random>
 #include <algorithm>
 #include <functional>
+#include <thread>
+#include <stdexcept>
 
 namespace dht {
 namespace crypto {
@@ -111,11 +113,18 @@ using random_device = std::random_device;
 template<class T = std::mt19937, std::size_t N = T::state_size>
 auto getSeededRandomEngine () -> typename std::enable_if<!!N, T>::type {
     typename T::result_type random_data[N];
-    random_device source;
-    std::generate(std::begin(random_data), std::end(random_data), std::ref(source));
-    std::seed_seq seeds(std::begin(random_data), std::end(random_data));
-    T seededEngine (seeds);
-    return seededEngine;
+    for (unsigned i=0; i<256; i++) {
+        try {
+            random_device source;
+            std::generate(std::begin(random_data), std::end(random_data), std::ref(source));
+            std::seed_seq seeds(std::begin(random_data), std::end(random_data));
+            T seededEngine (seeds);
+            return seededEngine;
+        } catch (...) {
+            std::this_thread::sleep_for(std::chrono::milliseconds(1));
+        }
+    }
+    throw std::runtime_error("Can't seed random engine");
 }
 
 }} // dht::crypto

include/opendht/routing_table.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *
@@ -39,7 +39,7 @@ struct Bucket {
     Sp<Node> cached;                    /* the address of a likely candidate */
 
     /** Return a random node in a bucket. */
-    Sp<Node> randomNode();
+    Sp<Node> randomNode(std::mt19937_64& rd);
 
     void sendCachedPing(net::NetworkEngine& ne);
     void connectivityChanged() {
@@ -89,7 +89,7 @@ public:
     /**
      * Return a random id in the bucket's range.
      */
-    InfoHash randomId(const RoutingTable::const_iterator& bucket) const;
+    InfoHash randomId(const RoutingTable::const_iterator& bucket, std::mt19937_64& rd) const;
 
     unsigned depth(const RoutingTable::const_iterator& bucket) const;
 

include/opendht/scheduler.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *
@@ -36,8 +36,9 @@ namespace dht {
 class Scheduler {
 public:
     struct Job {
-        Job(std::function<void()>&& f) : do_(std::move(f)) {}
+        Job(std::function<void()>&& f, time_point t) : do_(std::move(f)), t_(t) {}
         std::function<void()> do_;
+        const time_point t_;
         void cancel() { do_ = {}; }
     };
 
@@ -50,17 +51,12 @@ public:
      * @return pointer to the newly scheduled job.
      */
     Sp<Scheduler::Job> add(time_point t, std::function<void()>&& job_func) {
-        auto job = std::make_shared<Job>(std::move(job_func));
+        auto job = std::make_shared<Job>(std::move(job_func), t);
         if (t != time_point::max())
             timers.emplace(std::move(t), job);
         return job;
     }
 
-    void add(const Sp<Scheduler::Job>& job, time_point t) {
-        if (t != time_point::max())
-            timers.emplace(std::move(t), job);
-    }
-
     /**
      * Reschedules a job.
      *
@@ -68,23 +64,35 @@ public:
      * @param t  The time at which the job shall be rescheduled.
      */
     void edit(Sp<Scheduler::Job>& job, time_point t) {
-        if (not job) {
+        if (not job)
             return;
-        }
         // std::function move doesn't garantee to leave the object empty.
         // Force clearing old value.
         auto task = std::move(job->do_);
-        job->do_ = {};
+        cancel(job);
         job = add(t, std::move(task));
     }
 
+    bool cancel(Sp<Scheduler::Job>& job) {
+        if (job) {
+            job->cancel();
+            for (auto r = timers.equal_range(job->t_); r.first != r.second; ++r.first) {
+                if (r.first->second == job) {
+                    timers.erase(r.first);
+                    job.reset();
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
     /**
      * Runs the jobs to do up to now.
      *
      * @return The time for the next job to run.
      */
     time_point run() {
-        syncTime();
         while (not timers.empty()) {
             auto timer = timers.begin();
             /*
@@ -114,6 +122,7 @@ public:
      */
     inline const time_point& time() const { return now; }
     inline time_point syncTime() { return (now = clock::now()); }
+    inline void syncTime(const time_point& n) { now = n; }
 
 private:
     time_point now {clock::now()};

include/opendht/securedht.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
@@ -45,15 +45,13 @@ public:
         return c;
     }
 
-    SecureDht() {}
-
     /**
      * s, s6: bound socket descriptors for IPv4 and IPv6, respectively.
      *        For the Dht to be initialised, at least one of them must be >= 0.
      * id:    the identity to use for the crypto layer and to compute
      *        our own hash on the Dht.
      */
-    SecureDht(std::unique_ptr<DhtInterface> dht, Config config);
+    SecureDht(std::unique_ptr<DhtInterface> dht, Config config, IdentityAnnouncedCb iacb = {}, const std::shared_ptr<Logger>& l = {});
 
     virtual ~SecureDht();
 
@@ -63,6 +61,9 @@ public:
     PkId getLongId() const {
         return key_ ? key_->getPublicKey().getLongId() : PkId();
     }
+    Sp<crypto::PublicKey> getPublicKey() const {
+        return key_ ? key_->getSharedPublicKey() : Sp<crypto::PublicKey>{};
+    }
 
     ValueType secureType(ValueType&& type);
 
@@ -117,6 +118,10 @@ public:
     void putEncrypted(const InfoHash& hash, const InfoHash& to, Value&& v, DoneCallback callback, bool permanent = false) {
         putEncrypted(hash, to, std::make_shared<Value>(std::move(v)), callback, permanent);
     }
+    void putEncrypted(const InfoHash& hash, const crypto::PublicKey& to, Sp<Value> val, DoneCallback callback, bool permanent = false);
+    void putEncrypted(const InfoHash& hash, const crypto::PublicKey& to, Value&& v, DoneCallback callback, bool permanent = false) {
+        putEncrypted(hash, to, std::make_shared<Value>(std::move(v)), callback, permanent);
+    }
 
     /**
      * Take ownership of the value and sign it using our private key.
@@ -128,13 +133,13 @@ public:
     Value decrypt(const Value& v);
 
     void findCertificate(const InfoHash& node, const std::function<void(const Sp<crypto::Certificate>)>& cb);
-    void findPublicKey(const InfoHash& node, const std::function<void(const Sp<const crypto::PublicKey>)>& cb);
+    void findPublicKey(const InfoHash& node, const std::function<void(const Sp<crypto::PublicKey>)>& cb);
 
-    const Sp<crypto::Certificate> registerCertificate(const InfoHash& node, const Blob& cert);
+    Sp<crypto::Certificate> registerCertificate(const InfoHash& node, const Blob& cert);
     void registerCertificate(Sp<crypto::Certificate>& cert);
 
-    const Sp<crypto::Certificate> getCertificate(const InfoHash& node) const;
-    const Sp<const crypto::PublicKey> getPublicKey(const InfoHash& node) const;
+    Sp<crypto::Certificate> getCertificate(const InfoHash& node) const;
+    Sp<crypto::PublicKey> getPublicKey(const InfoHash& node) const;
 
     /**
      * Allows to set a custom callback called by the library to find a locally-stored certificate.
@@ -148,8 +153,8 @@ public:
     /**
      * SecureDht to Dht proxy
      */
-    void shutdown(ShutdownCallback cb) override {
-        dht_->shutdown(cb);
+    void shutdown(ShutdownCallback cb, bool stop = false) override {
+        dht_->shutdown(cb, stop);
     }
     void dumpTables() const override {
         dht_->dumpTables();
@@ -168,6 +173,10 @@ public:
     void setStorageLimit(size_t limit = DEFAULT_STORAGE_LIMIT) override {
         dht_->setStorageLimit(limit);
     }
+    size_t getStorageLimit() const override {
+        return dht_->getStorageLimit();
+    }
+
     std::vector<NodeExport> exportNodes() const override {
         return dht_->exportNodes();
     }
@@ -195,11 +204,14 @@ public:
     std::vector<SockAddr> getPublicAddress(sa_family_t family = 0) override {
         return dht_->getPublicAddress(family);
     }
-    time_point periodic(const uint8_t *buf, size_t buflen, SockAddr sa) override {
-        return dht_->periodic(buf, buflen, std::move(sa));
+    time_point periodic(const uint8_t *buf, size_t buflen, SockAddr sa, const time_point& now) override {
+        return dht_->periodic(buf, buflen, std::move(sa), now);
     }
-    time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen) override {
-        return dht_->periodic(buf, buflen, from, fromlen);
+    time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen, const time_point& now) override {
+        return dht_->periodic(buf, buflen, from, fromlen, now);
+    }
+    NodeStatus updateStatus(sa_family_t af) override  {
+        return dht_->updateStatus(af);
     }
     NodeStatus getStatus(sa_family_t af) const override {
         return dht_->getStatus(af);
@@ -216,6 +228,12 @@ public:
     const ValueType& getType(ValueType::Id type_id) const override {
         return dht_->getType(type_id);
     }
+    void addBootstrap(const std::string& host, const std::string& service) override {
+        dht_->addBootstrap(host, service);
+    }
+    void clearBootstrap() override {
+        dht_->clearBootstrap();
+    }
     void insertNode(const InfoHash& id, const SockAddr& sa) override {
         dht_->insertNode(id, sa);
     }
@@ -316,11 +334,16 @@ public:
         dht_->setLogger(logger);
     }
 
+    void setLogger(const std::shared_ptr<Logger>& logger) override {
+        DhtInterface::setLogger(logger);
+        dht_->setLogger(logger);
+    }
+
     /**
      * Only print logs related to the given InfoHash (if given), or disable filter (if zeroes).
      */
     void setLogFilter(const InfoHash& f) override {
-        DHT_LOG.setFilter(f);
+        DhtInterface::setLogFilter(f);
         dht_->setLogFilter(f);
     }
 
@@ -342,9 +365,10 @@ private:
 
     // our certificate cache
     std::map<InfoHash, Sp<crypto::Certificate>> nodesCertificates_ {};
-    std::map<InfoHash, Sp<const crypto::PublicKey>> nodesPubKeys_ {};
+    std::map<InfoHash, Sp<crypto::PublicKey>> nodesPubKeys_ {};
 
     std::atomic_bool forward_all_ {false};
+    bool enableCache_ {false};
 };
 
 const ValueType CERTIFICATE_TYPE = {

include/opendht/sockaddr.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2016-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -68,7 +68,7 @@ public:
      * Build from existing address.
      */
     SockAddr(const sockaddr* sa, socklen_t length) {
-        if (length > sizeof(sockaddr_storage))
+        if (length > static_cast<socklen_t>(sizeof(sockaddr_storage)))
             throw std::runtime_error("Socket address length is too large");
         set(sa, length);
     }
@@ -144,7 +144,7 @@ public:
             if (len) addr.reset((sockaddr*)::calloc(len, 1));
             else     addr.reset();
         }
-        if (len > sizeof(sa_family_t))
+        if (len)
             addr->sa_family = af;
     }
 
@@ -223,19 +223,28 @@ public:
      */
     sockaddr* get() { return addr.get(); }
 
-    const sockaddr_in& getIPv4() const {
+    inline const sockaddr_in& getIPv4() const {
         return *reinterpret_cast<const sockaddr_in*>(get());
     }
-    const sockaddr_in6& getIPv6() const {
+    inline const sockaddr_in6& getIPv6() const {
         return *reinterpret_cast<const sockaddr_in6*>(get());
     }
-    sockaddr_in& getIPv4() {
+    inline sockaddr_in& getIPv4() {
         return *reinterpret_cast<sockaddr_in*>(get());
     }
-    sockaddr_in6& getIPv6() {
+    inline sockaddr_in6& getIPv6() {
         return *reinterpret_cast<sockaddr_in6*>(get());
     }
 
+    /** 
+     * Releases the ownership of the managed object, if any.
+     * The caller is responsible for deleting the object with free().
+     */
+    inline sockaddr* release() {
+        len = 0;
+        return addr.release();
+    }
+
     /**
      * Return true if address is a loopback IP address.
      */

include/opendht/thread_pool.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2016-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *
  *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
@@ -27,6 +27,8 @@
 #include <future>
 #include <functional>
 
+#include <ciso646> // fix windows compiler bug
+
 namespace dht {
 
 class OPENDHT_PUBLIC ThreadPool {
@@ -63,15 +65,14 @@ public:
     void join();
 
 private:
-    struct ThreadState;
-    std::queue<std::function<void()>> tasks_ {};
-    std::vector<std::unique_ptr<ThreadState>> threads_;
-    unsigned readyThreads_ {0};
     std::mutex lock_ {};
     std::condition_variable cv_ {};
+    std::queue<std::function<void()>> tasks_ {};
+    std::vector<std::unique_ptr<std::thread>> threads_;
+    unsigned readyThreads_ {0};
+    bool running_ {true};
 
     const unsigned maxThreads_;
-    bool running_ {true};
 };
 
 class OPENDHT_PUBLIC Executor : public std::enable_shared_from_this<Executor> {
@@ -93,4 +94,71 @@ private:
     void schedule();
 };
 
+class OPENDHT_PUBLIC ExecutionContext {
+public:
+    ExecutionContext(ThreadPool& pool)
+     : threadPool_(pool), state_(std::make_shared<SharedState>())
+    {}
+
+    ~ExecutionContext() {
+        state_->destroy();
+    }
+
+    /** Wait for ongoing tasks to complete execution and drop other pending tasks */
+    void stop() {
+        state_->destroy(false);
+    }
+
+    void run(std::function<void()>&& task) {
+        std::lock_guard<std::mutex> lock(state_->mtx);
+        if (state_->shutdown_) return;
+        state_->pendingTasks++;
+        threadPool_.get().run([task = std::move(task), state = state_] {
+            state->run(task);
+        });
+    }
+
+private:
+    struct SharedState {
+        std::mutex mtx {};
+        std::condition_variable cv {};
+        unsigned pendingTasks {0};
+        unsigned ongoingTasks {0};
+        /** When true, prevents new tasks to be scheduled */
+        bool shutdown_ {false};
+        /** When true, prevents scheduled tasks to be executed */
+        std::atomic_bool destroyed {false};
+
+        void destroy(bool wait = true) {
+            std::unique_lock<std::mutex> lock(mtx);
+            if (destroyed) return;
+            if (wait) {
+                cv.wait(lock, [this] { return pendingTasks == 0 && ongoingTasks == 0; });
+            }
+            shutdown_ = true;
+            if (not wait) {
+                cv.wait(lock, [this] { return ongoingTasks == 0; });
+            }
+            destroyed = true;
+        }
+
+        void run(const std::function<void()>& task) {
+            {
+                std::lock_guard<std::mutex> lock(mtx);
+                pendingTasks--;
+                ongoingTasks++;
+            }
+                if (destroyed) return;
+                task();
+            {
+                std::lock_guard<std::mutex> lock(mtx);
+                ongoingTasks--;
+                cv.notify_all();
+            }
+        }
+    };
+    std::reference_wrapper<ThreadPool> threadPool_;
+    std::shared_ptr<SharedState> state_;
+};
+
 }

include/opendht/utils.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -77,12 +77,20 @@ public:
 // Time related definitions and utility functions
 
 using clock = std::chrono::steady_clock;
+using system_clock = std::chrono::system_clock;
 using time_point = clock::time_point;
 using duration = clock::duration;
 
 time_point from_time_t(std::time_t t);
 std::time_t to_time_t(time_point t);
 
+inline std::string
+to_str(double d) {
+    char buf[16];
+    auto ret = snprintf(buf, sizeof(buf), "%.3g", d);
+    return (ret < 0) ? std::to_string(d) : std::string(buf, ret);
+}
+
 /**
  * Converts std::chrono::duration to floating-point seconds.
  */
@@ -97,16 +105,28 @@ static std::string
 print_duration(DT d) {
     if (d < std::chrono::seconds(0)) {
         return "-" + print_duration(-d);
-    }
-    if (d < std::chrono::milliseconds(1)) {
-        return std::to_string(std::chrono::duration_cast<std::chrono::duration<double, std::micro>>(d).count()) +  " us";
+    } else if (d < std::chrono::milliseconds(1)) {
+        return to_str(std::chrono::duration_cast<std::chrono::duration<double, std::micro>>(d).count()) +  " us";
     } else if (d < std::chrono::seconds(1)) {
-        return std::to_string(std::chrono::duration_cast<std::chrono::duration<double, std::milli>>(d).count()) +  " ms";
+        return to_str(std::chrono::duration_cast<std::chrono::duration<double, std::milli>>(d).count()) +  " ms";
+    } else if (d < std::chrono::minutes(1)) {
+        return to_str(std::chrono::duration_cast<std::chrono::duration<double>>(d).count()) +  " s";
+    } else if (d < std::chrono::hours(1)) {
+        return to_str(std::chrono::duration_cast<std::chrono::duration<double, std::ratio<60>>>(d).count()) +  " min";
     } else {
-        return std::to_string(print_dt(d)) + " s";
+        return to_str(std::chrono::duration_cast<std::chrono::duration<double, std::ratio<3600>>>(d).count()) +  " h";
     }
 }
 
+template <class TimePoint>
+static std::string
+print_time_relative(TimePoint now, TimePoint d) {
+    if (d == TimePoint::min()) return "never";
+    if (d == now)              return "now";
+    return (d > now) ? std::string("in ") + print_duration(d - now)
+                     : print_duration(now - d) + std::string(" ago");
+}
+
 template <typename Duration = duration>
 class uniform_duration_distribution : public std::uniform_int_distribution<typename Duration::rep> {
     using Base = std::uniform_int_distribution<typename Duration::rep>;
@@ -133,7 +153,7 @@ using Blob = std::vector<uint8_t>;
 /**
  * Provides backward compatibility with msgpack 1.0
  */
-OPENDHT_PUBLIC Blob unpackBlob(msgpack::object& o);
+OPENDHT_PUBLIC Blob unpackBlob(const msgpack::object& o);
 
 template <typename Type>
 Blob
@@ -153,6 +173,13 @@ unpackMsg(Blob b) {
 
 msgpack::unpacked unpackMsg(Blob b);
 
-msgpack::object* findMapValue(msgpack::object& map, const std::string& key);
+msgpack::object* findMapValue(const msgpack::object& map, const char* key, size_t length);
+
+inline msgpack::object* findMapValue(const msgpack::object& map, const char* key) {
+    return findMapValue(map, key, strlen(key));
+}
+inline msgpack::object* findMapValue(const msgpack::object& map, std::string_view key) {
+    return findMapValue(map, key.data(), key.size());
+}
 
 } // namespace dht

include/opendht/value.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *
@@ -27,6 +27,7 @@
 #include <msgpack.hpp>
 
 #include <string>
+#include <string_view>
 #include <sstream>
 #include <bitset>
 #include <vector>
@@ -42,6 +43,20 @@
 #endif
 
 namespace dht {
+using namespace std::literals;
+
+static constexpr auto VALUE_KEY_ID("id");
+static const std::string VALUE_KEY_DAT("dat");
+static const std::string VALUE_KEY_PRIO("p");
+static const std::string VALUE_KEY_SIGNATURE("sig");
+
+static const std::string VALUE_KEY_SEQ("seq");
+static const std::string VALUE_KEY_DATA("data");
+static const std::string VALUE_KEY_OWNER("owner");
+static const std::string VALUE_KEY_TYPE("type");
+static const std::string VALUE_KEY_TO("to");
+static const std::string VALUE_KEY_BODY("body");
+static const std::string VALUE_KEY_USERTYPE("utype");
 
 struct Value;
 struct Query;
@@ -104,7 +119,7 @@ struct OPENDHT_PUBLIC ValueType {
 
     Id id {0};
     std::string name {};
-    duration expiration {60 * 10};
+    duration expiration {std::chrono::minutes(10)};
     StorePolicy storePolicy {DEFAULT_STORE_POLICY};
     EditPolicy editPolicy {DEFAULT_EDIT_POLICY};
 };
@@ -156,29 +171,29 @@ struct OPENDHT_PUBLIC Value
         template<typename Functor>
         Filter(Functor f) : std::function<bool(const Value&)>::function(f) {}
 
-        Filter chain(Filter&& f2) {
+        inline Filter chain(Filter&& f2) {
             auto f1 = *this;
             return chain(std::move(f1), std::move(f2));
         }
-        Filter chainOr(Filter&& f2) {
+        inline Filter chainOr(Filter&& f2) {
             auto f1 = *this;
             return chainOr(std::move(f1), std::move(f2));
         }
-        static Filter chain(Filter&& f1, Filter&& f2) {
+        static inline Filter chain(Filter&& f1, Filter&& f2) {
             if (not f1) return std::move(f2);
             if (not f2) return std::move(f1);
             return [f1 = std::move(f1), f2 = std::move(f2)](const Value& v) {
                 return f1(v) and f2(v);
             };
         }
-        static Filter chain(const Filter& f1, const Filter& f2) {
+        static inline Filter chain(const Filter& f1, const Filter& f2) {
             if (not f1) return f2;
             if (not f2) return f1;
             return [f1,f2](const Value& v) {
                 return f1(v) and f2(v);
             };
         }
-        static Filter chainAll(std::vector<Filter>&& set) {
+        static inline Filter chainAll(std::vector<Filter>&& set) {
             if (set.empty()) return {};
             return [set = std::move(set)](const Value& v) {
                 for (const auto& f : set)
@@ -187,18 +202,18 @@ struct OPENDHT_PUBLIC Value
                 return true;
             };
         }
-        static Filter chain(std::initializer_list<Filter> l) {
+        static inline Filter chain(std::initializer_list<Filter> l) {
             return chainAll(std::vector<Filter>(l.begin(), l.end()));
         }
-        static Filter chainOr(Filter&& f1, Filter&& f2) {
+        static inline Filter chainOr(Filter&& f1, Filter&& f2) {
             if (not f1 or not f2) return {};
-            return [f1,f2](const Value& v) {
+            return [f1=std::move(f1),f2=std::move(f2)](const Value& v) {
                 return f1(v) or f2(v);
             };
         }
-        static Filter notFilter(Filter&& f) {
+        static inline Filter notFilter(Filter&& f) {
             if (not f) return [](const Value&) { return false; };
-            return [f](const Value& v) { return not f(v); };
+            return [f = std::move(f)](const Value& v) { return not f(v); };
         }
         std::vector<Sp<Value>> filter(const std::vector<Sp<Value>>& values) {
             if (not (*this))
@@ -213,52 +228,51 @@ struct OPENDHT_PUBLIC Value
 
     /* Sneaky functions disguised in classes */
 
-    static const Filter AllFilter() {
+    static inline Filter AllFilter() {
         return {};
     }
 
-    static Filter TypeFilter(const ValueType& t) {
-        const auto tid = t.id;
-        return [tid](const Value& v) {
+    static inline Filter TypeFilter(const ValueType& t) {
+        return [tid = t.id](const Value& v) {
             return v.type == tid;
         };
     }
-    static Filter TypeFilter(const ValueType::Id& tid) {
+    static inline Filter TypeFilter(const ValueType::Id& tid) {
         return [tid](const Value& v) {
             return v.type == tid;
         };
     }
 
-    static Filter IdFilter(const Id id) {
+    static inline Filter IdFilter(const Id id) {
         return [id](const Value& v) {
             return v.id == id;
         };
     }
 
-    static Filter RecipientFilter(const InfoHash& r) {
+    static inline Filter RecipientFilter(const InfoHash& r) {
         return [r](const Value& v) {
             return v.recipient == r;
         };
     }
 
-    static Filter OwnerFilter(const crypto::PublicKey& pk) {
+    static inline Filter OwnerFilter(const crypto::PublicKey& pk) {
         return OwnerFilter(pk.getId());
     }
 
-    static Filter OwnerFilter(const InfoHash& pkh) {
+    static inline Filter OwnerFilter(const InfoHash& pkh) {
         return [pkh](const Value& v) {
             return v.owner and v.owner->getId() == pkh;
         };
     }
 
-    static Filter SeqNumFilter(uint16_t seq_no) {
+    static inline Filter SeqNumFilter(uint16_t seq_no) {
         return [seq_no](const Value& v) {
             return v.seq == seq_no;
         };
     }
 
-    static Filter UserTypeFilter(const std::string& ut) {
-        return [ut](const Value& v) {
+    static inline Filter UserTypeFilter(std::string ut) {
+        return [ut = std::move(ut)](const Value& v) {
             return v.user_type == ut;
         };
     }
@@ -329,10 +343,10 @@ struct OPENDHT_PUBLIC Value
         return unpack<T>(*this);
     }
 
-    bool isEncrypted() const {
+    inline bool isEncrypted() const {
         return not cypher.empty();
     }
-    bool isSigned() const {
+    inline bool isSigned() const {
         return owner and not signature.empty();
     }
 
@@ -341,37 +355,24 @@ 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 {
+    inline bool checkSignature() const {
         return isSigned() and owner->checkSignature(getToSign(), signature);
     }
 
-    std::shared_ptr<const crypto::PublicKey> getOwner() const {
-        return std::static_pointer_cast<const crypto::PublicKey>(owner);
+    inline std::shared_ptr<crypto::PublicKey> getOwner() const {
+        return owner;
     }
 
     /**
      * Sign the value with from and returns the encrypted version for to.
      */
-    Value encrypt(const crypto::PrivateKey& from, const crypto::PublicKey& to) {
-        if (isEncrypted())
-            throw DhtException("Data is already encrypted.");
-        setRecipient(to.getId());
-        sign(from);
-        Value nv {id};
-        nv.setCypher(to.encrypt(getToEncrypt()));
-        return nv;
-    }
+    Value encrypt(const crypto::PrivateKey& from, const crypto::PublicKey& to);
 
     Value() {}
 
@@ -390,7 +391,7 @@ struct OPENDHT_PUBLIC Value
      * Build a value from a json object
      * @param json
      */
-    Value(Json::Value& json);
+    Value(const Json::Value& json);
 #endif
 
     template <typename Type>
@@ -408,7 +409,9 @@ struct OPENDHT_PUBLIC Value
 
     Value(Value&& o) noexcept
      : id(o.id), owner(std::move(o.owner)), recipient(o.recipient),
-     type(o.type), data(std::move(o.data)), user_type(std::move(o.user_type)), seq(o.seq), signature(std::move(o.signature)), cypher(std::move(o.cypher)) {}
+     type(o.type), data(std::move(o.data)), user_type(std::move(o.user_type)), seq(o.seq)
+     , signature(std::move(o.signature)), cypher(std::move(o.cypher))
+     , priority(o.priority) {}
 
     template <typename Type>
     Value(const Type& vs)
@@ -421,24 +424,34 @@ struct OPENDHT_PUBLIC Value
         msgpack_unpack(o);
     }
 
-    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));
+    /**
+     * Returns true if value contents are equals (not considering the value ID)
+     */
+    inline bool contentEquals(const Value& o) {
+        return isEncrypted() ? cypher == o.cypher :
+            ((owner == o.owner || (owner and o.owner and *owner == *o.owner))
+                && type == o.type
+                && data == o.data
+                && user_type == o.user_type
+                && signature == o.signature);
     }
 
-    void setRecipient(const InfoHash& r) {
+    inline bool operator== (const Value& o) {
+        return id == o.id and contentEquals(o);
+    }
+
+    inline void setRecipient(const InfoHash& r) {
         recipient = r;
     }
 
-    void setCypher(Blob&& c) {
+    inline void setCypher(Blob&& c) {
         cypher = std::move(c);
     }
 
     /**
      * Pack part of the data to be signed (must always be done the same way)
      */
-    Blob getToSign() const {
+    inline Blob getToSign() const {
         msgpack::sbuffer buffer;
         msgpack::packer<msgpack::sbuffer> pk(&buffer);
         msgpack_pack_to_sign(pk);
@@ -448,7 +461,7 @@ struct OPENDHT_PUBLIC Value
     /**
      * Pack part of the data to be encrypted
      */
-    Blob getToEncrypt() const {
+    inline Blob getToEncrypt() const {
         msgpack::sbuffer buffer;
         msgpack::packer<msgpack::sbuffer> pk(&buffer);
         msgpack_pack_to_encrypt(pk);
@@ -458,7 +471,7 @@ struct OPENDHT_PUBLIC Value
     /** print value for debugging */
     OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const Value& v);
 
-    std::string toString() const {
+    inline std::string toString() const {
         std::stringstream ss;
         ss << *this;
         return ss.str();
@@ -485,17 +498,17 @@ struct OPENDHT_PUBLIC Value
         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);
-            pk.pack(std::string("owner")); owner->msgpack_pack(pk);
+            pk.pack(VALUE_KEY_SEQ);   pk.pack(seq);
+            pk.pack(VALUE_KEY_OWNER); owner->msgpack_pack(pk);
             if (recipient) {
-                pk.pack(std::string("to")); pk.pack(recipient);
+                pk.pack(VALUE_KEY_TO); pk.pack(recipient);
             }
         }
-        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());
+        pk.pack(VALUE_KEY_TYPE);  pk.pack(type);
+        pk.pack(VALUE_KEY_DATA);  pk.pack_bin(data.size());
+                                  pk.pack_bin_body((const char*)data.data(), data.size());
         if (not user_type.empty()) {
-            pk.pack(std::string("utype")); pk.pack(user_type);
+            pk.pack(VALUE_KEY_USERTYPE); pk.pack(user_type);
         }
     }
 
@@ -507,10 +520,10 @@ struct OPENDHT_PUBLIC Value
             pk.pack_bin_body((const char*)cypher.data(), cypher.size());
         } else {
             pk.pack_map(isSigned() ? 2 : 1);
-            pk.pack(std::string("body")); msgpack_pack_to_sign(pk);
+            pk.pack(VALUE_KEY_BODY); msgpack_pack_to_sign(pk);
             if (isSigned()) {
-                pk.pack(std::string("sig")); pk.pack_bin(signature.size());
-                                             pk.pack_bin_body((const char*)signature.data(), signature.size());
+                pk.pack(VALUE_KEY_SIGNATURE); pk.pack_bin(signature.size());
+                                              pk.pack_bin_body((const char*)signature.data(), signature.size());
             }
         }
     }
@@ -518,9 +531,12 @@ struct OPENDHT_PUBLIC Value
     template <typename Packer>
     void msgpack_pack(Packer& pk) const
     {
-        pk.pack_map(2);
-        pk.pack(std::string("id"));  pk.pack(id);
-        pk.pack(std::string("dat")); msgpack_pack_to_encrypt(pk);
+        pk.pack_map(2 + (priority?1:0));
+        pk.pack(VALUE_KEY_ID);  pk.pack(id);
+        pk.pack(VALUE_KEY_DAT); msgpack_pack_to_encrypt(pk);
+        if (priority) {
+            pk.pack(VALUE_KEY_PRIO);  pk.pack(priority);
+        }
     }
 
     template <typename Packer>
@@ -551,7 +567,7 @@ struct OPENDHT_PUBLIC Value
             }
     }
 
-    void msgpack_unpack(msgpack::object o);
+    void msgpack_unpack(const msgpack::object& o);
     void msgpack_unpack_body(const msgpack::object& o);
     Blob getPacked() const {
         msgpack::sbuffer buffer;
@@ -567,7 +583,7 @@ struct OPENDHT_PUBLIC Value
     /**
      * Public key of the signer.
      */
-    std::shared_ptr<const crypto::PublicKey> owner {};
+    std::shared_ptr<crypto::PublicKey> owner {};
 
     /**
      * Hash of the recipient (optional).
@@ -602,8 +618,23 @@ struct OPENDHT_PUBLIC Value
      */
     Blob cypher {};
 
+    /**
+     * Priority of this value (used for push notifications)
+     * 0 = high priority
+     * 1 = normal priority
+     */
+    unsigned priority {0};
+
+    inline bool isSignatureChecked() const {
+        return signatureChecked;
+    }
+    inline bool isDecrypted() const {
+        return decrypted;
+    }
+    bool checkSignature();
+    Sp<Value> decrypt(const crypto::PrivateKey& key);
+
 private:
-    friend class SecureDht;
     /* Cache for crypto ops */
     bool signatureChecked {false};
     bool signatureValid {false};
@@ -625,7 +656,7 @@ struct OPENDHT_PUBLIC FieldValue
     FieldValue() {}
     FieldValue(Value::Field f, uint64_t int_value) : field(f), intValue(int_value) {}
     FieldValue(Value::Field f, InfoHash hash_value) : field(f), hashValue(hash_value) {}
-    FieldValue(Value::Field f, Blob blob_value) : field(f), blobValue(blob_value) {}
+    FieldValue(Value::Field f, Blob blob_value) : field(f), blobValue(std::move(blob_value)) {}
 
     bool operator==(const FieldValue& fd) const;
 
@@ -638,9 +669,9 @@ struct OPENDHT_PUBLIC FieldValue
     template <typename Packer>
     void msgpack_pack(Packer& p) const {
         p.pack_map(2);
-        p.pack(std::string("f")); p.pack(static_cast<uint8_t>(field));
+        p.pack("f"sv); p.pack(static_cast<uint8_t>(field));
 
-        p.pack(std::string("v"));
+        p.pack("v"sv);
         switch (field) {
             case Value::Field::Id:
             case Value::Field::ValueType:
@@ -658,16 +689,16 @@ struct OPENDHT_PUBLIC FieldValue
         }
     }
 
-    void msgpack_unpack(msgpack::object msg) {
+    void msgpack_unpack(const msgpack::object& msg) {
         hashValue = {};
         blobValue.clear();
 
-        if (auto f = findMapValue(msg, "f"))
+        if (auto f = findMapValue(msg, "f"sv))
             field = (Value::Field)f->as<unsigned>();
         else
             throw msgpack::type_error();
 
-        auto v = findMapValue(msg, "v");
+        auto v = findMapValue(msg, "v"sv);
         if (not v)
             throw msgpack::type_error();
         else
@@ -707,7 +738,7 @@ private:
 struct OPENDHT_PUBLIC Select
 {
     Select() { }
-    Select(const std::string& q_str);
+    Select(std::string_view q_str);
 
     bool isSatisfiedBy(const Select& os) const;
 
@@ -745,6 +776,8 @@ struct OPENDHT_PUBLIC Select
         return ss.str();
     }
 
+    bool empty() const { return fieldSelection_.empty(); }
+
     OPENDHT_PUBLIC friend std::ostream& operator<<(std::ostream& s, const dht::Select& q);
 private:
     std::vector<Value::Field> fieldSelection_ {};
@@ -760,7 +793,7 @@ private:
 struct OPENDHT_PUBLIC Where
 {
     Where() { }
-    Where(const std::string& q_str);
+    Where(std::string_view q_str);
 
     bool isSatisfiedBy(const Where& where) const;
 
@@ -771,11 +804,11 @@ struct OPENDHT_PUBLIC Where
      *
      * @return the resulting Where instance.
      */
-    Where& id(Value::Id id) {
+    Where&& id(Value::Id id) {
         FieldValue fv {Value::Field::Id, id};
         if (std::find(filters_.begin(), filters_.end(), fv) == filters_.end())
             filters_.emplace_back(std::move(fv));
-        return *this;
+        return std::move(*this);
     }
 
     /**
@@ -785,11 +818,11 @@ struct OPENDHT_PUBLIC Where
      *
      * @return the resulting Where instance.
      */
-    Where& valueType(ValueType::Id type) {
+    Where&& valueType(ValueType::Id type) {
         FieldValue fv {Value::Field::ValueType, type};
         if (std::find(filters_.begin(), filters_.end(), fv) == filters_.end())
             filters_.emplace_back(std::move(fv));
-        return *this;
+        return std::move(*this);
     }
 
     /**
@@ -799,11 +832,11 @@ struct OPENDHT_PUBLIC Where
      *
      * @return the resulting Where instance.
      */
-    Where& owner(InfoHash owner_pk_hash) {
+    Where&& owner(InfoHash owner_pk_hash) {
         FieldValue fv {Value::Field::OwnerPk, owner_pk_hash};
         if (std::find(filters_.begin(), filters_.end(), fv) == filters_.end())
             filters_.emplace_back(std::move(fv));
-        return *this;
+        return std::move(*this);
     }
 
     /**
@@ -813,11 +846,11 @@ struct OPENDHT_PUBLIC Where
      *
      * @return the resulting Where instance.
      */
-    Where& seq(uint16_t seq_no) {
+    Where&& seq(uint16_t seq_no) {
         FieldValue fv {Value::Field::SeqNum, seq_no};
         if (std::find(filters_.begin(), filters_.end(), fv) == filters_.end())
             filters_.emplace_back(std::move(fv));
-        return *this;
+        return std::move(*this);
     }
 
     /**
@@ -827,11 +860,11 @@ struct OPENDHT_PUBLIC Where
      *
      * @return the resulting Where instance.
      */
-    Where& userType(std::string user_type) {
+    Where&& userType(std::string_view user_type) {
         FieldValue fv {Value::Field::UserType, Blob {user_type.begin(), user_type.end()}};
         if (std::find(filters_.begin(), filters_.end(), fv) == filters_.end())
             filters_.emplace_back(std::move(fv));
-        return *this;
+        return std::move(*this);
     }
 
     /**
@@ -840,7 +873,10 @@ struct OPENDHT_PUBLIC Where
      * @return the resulting Value::Filter.
      */
     Value::Filter getFilter() const {
-        if (filters_.empty()) return {};
+        if (filters_.empty())
+            return {};
+        if (filters_.size() == 1)
+            return filters_[0].getLocalFilter();
         std::vector<Value::Filter> fset;
         fset.reserve(filters_.size());
         for (const auto& f : filters_) {
@@ -900,11 +936,11 @@ struct OPENDHT_PUBLIC Query
      *  - $string$: a simple string WITHOUT SPACES.
      *  - $integer$: a simple integer.
      */
-    Query(std::string q_str) {
+    Query(std::string_view q_str) {
         auto pos_W = q_str.find("WHERE");
         auto pos_w = q_str.find("where");
-        auto pos = std::min(pos_W != std::string::npos ? pos_W : q_str.size(),
-                            pos_w != std::string::npos ? pos_w : q_str.size());
+        auto pos = std::min(pos_W != std::string_view::npos ? pos_W : q_str.size(),
+                            pos_w != std::string_view::npos ? pos_w : q_str.size());
         select = q_str.substr(0, pos);
         where = q_str.substr(pos, q_str.size()-pos);
     }

m4/ax_cxx_compile_stdcxx.m4

@@ -10,13 +10,13 @@
 #
 #   Check for baseline language coverage in the compiler for the specified
 #   version of the C++ standard.  If necessary, add switches to CXX and
-#   CXXCPP to enable support.  VERSION may be '11' (for the C++11 standard)
-#   or '14' (for the C++14 standard).
+#   CXXCPP to enable support.  VERSION may be '11', '14', '17', or '20' for
+#   the respective C++ standard version.
 #
 #   The second argument, if specified, indicates whether you insist on an
 #   extended mode (e.g. -std=gnu++11) or a strict conformance mode (e.g.
 #   -std=c++11).  If neither is specified, you get whatever works, with
-#   preference for an extended mode.
+#   preference for no added switch, and then for an extended mode.
 #
 #   The third argument, if specified 'mandatory' or if left unspecified,
 #   indicates that baseline support for the specified C++ standard is
@@ -35,13 +35,15 @@
 #   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>
+#   Copyright (c) 2020 Jason Merrill <jason@redhat.com>
+#   Copyright (c) 2021 Jörn Heusipp <osmanx@problemloesungsmaschine.de>
 #
 #   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 11
+#serial 14
 
 dnl  This macro is based on the code from the AX_CXX_COMPILE_STDCXX_11 macro
 dnl  (serial version number 13).
@@ -50,6 +52,7 @@ AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
   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"],
+        [$1], [20], [ax_cxx_compile_alternatives="20"],
         [m4_fatal([invalid first argument `$1' to AX_CXX_COMPILE_STDCXX])])dnl
   m4_if([$2], [], [],
         [$2], [ext], [],
@@ -62,6 +65,16 @@ AC_DEFUN([AX_CXX_COMPILE_STDCXX], [dnl
   AC_LANG_PUSH([C++])dnl
   ac_success=no
 
+  m4_if([$2], [], [dnl
+    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 alternative in ${ax_cxx_compile_alternatives}; do
@@ -140,7 +153,6 @@ m4_define([_AX_CXX_COMPILE_STDCXX_testbody_11],
   _AX_CXX_COMPILE_STDCXX_testbody_new_in_11
 )
 
-
 dnl  Test body for checking C++14 support
 
 m4_define([_AX_CXX_COMPILE_STDCXX_testbody_14],
@@ -148,12 +160,24 @@ m4_define([_AX_CXX_COMPILE_STDCXX_testbody_14],
   _AX_CXX_COMPILE_STDCXX_testbody_new_in_14
 )
 
+dnl  Test body for checking C++17 support
+
 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  Test body for checking C++20 support
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_20],
+  _AX_CXX_COMPILE_STDCXX_testbody_new_in_11
+  _AX_CXX_COMPILE_STDCXX_testbody_new_in_14
+  _AX_CXX_COMPILE_STDCXX_testbody_new_in_17
+  _AX_CXX_COMPILE_STDCXX_testbody_new_in_20
+)
+
+
 dnl  Tests for new features in C++11
 
 m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_11], [[
@@ -949,3 +973,33 @@ namespace cxx17
 #endif  // __cplusplus < 201703L
 
 ]])
+
+
+dnl  Tests for new features in C++20
+
+m4_define([_AX_CXX_COMPILE_STDCXX_testbody_new_in_20], [[
+
+#ifndef __cplusplus
+
+#error "This is not a C++ compiler"
+
+#elif __cplusplus < 202002L
+
+#error "This is not a C++20 compiler"
+
+#else
+
+#include <version>
+
+namespace cxx20
+{
+
+// As C++20 supports feature test macros in the standard, there is no
+// immediate need to actually test for feature availability on the
+// Autoconf side.
+
+}  // namespace cxx20
+
+#endif  // __cplusplus < 202002L
+
+]])

opendht.pc.in

@@ -3,9 +3,9 @@ exec_prefix=@exec_prefix@
 libdir=@libdir@
 includedir=@includedir@
 Name: OpenDHT
-Description: C++ Distributed Hash Table library
+Description: C++17 Distributed Hash Table library
 Version: @VERSION@
 Libs: -L${libdir} -lopendht
-Libs.private: -lpthread
-Requires.private: gnutls >= 3.1@argon2_lib@
+Libs.private: @http_parser_lib@ -pthread
+Requires.private: gnutls >= 3.3, nettle >= 2.4@argon2_lib@@jsoncpp_lib@@openssl_lib@
 Cflags: -I${includedir}

python/CMakeLists.txt

@@ -3,10 +3,15 @@ set(CURRENT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
 set(CURRENT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
 
 configure_file(setup.py.in setup.py)
+configure_file(pyproject.toml pyproject.toml COPYONLY)
 
 add_custom_target(python ALL
     COMMAND python3 setup.py build
-    DEPENDS opendht opendht_cpp.pxd opendht.pyx)
+    DEPENDS opendht opendht_cpp.pxd opendht.pyx pyproject.toml)
+
+add_custom_target(dist
+    COMMAND python3 -m build
+    DEPENDS opendht opendht_cpp.pxd opendht.pyx pyproject.toml)
 
 install(CODE "execute_process(COMMAND python3 setup.py install --root=\$ENV{DESTDIR}/ WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})")
 if (OPENDHT_TOOLS)

python/Makefile.am

@@ -2,7 +2,8 @@ if USE_CYTHON
 
 noinst_HEADERS = \
 	opendht.pyx \
-	opendht_cpp.pxd
+	opendht_cpp.pxd \
+	pyproject.toml
 
 PYTHON_INSTALL_RECORD = $(builddir)/install_record.txt
 

python/opendht.pyx

@@ -1,11 +1,11 @@
 # distutils: language = c++
-# distutils: extra_compile_args = -std=c++14
+# distutils: extra_compile_args = -std=c++17
 # distutils: include_dirs = ../../include
 # distutils: library_dirs = ../../src
 # distutils: libraries = opendht gnutls
 # cython: language_level=3
 #
-# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author(s): Guillaume Roguez <guillaume.roguez@savoirfairelinux.com>
 #            Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
@@ -36,6 +36,7 @@ from libcpp.memory cimport shared_ptr
 from cython.parallel import parallel, prange
 from cython.operator cimport dereference as deref, preincrement as inc, predecrement as dec
 from cpython cimport ref
+from datetime import timedelta
 
 cimport opendht_cpp as cpp
 
@@ -235,8 +236,9 @@ cdef class Where(object):
 
 cdef class Value(object):
     cdef shared_ptr[cpp.Value] _value
-    def __init__(self, bytes val=b''):
-        self._value.reset(new cpp.Value(val, len(val)))
+    def __init__(self, bytes val=b'', cpp.uint16_t id=0):
+        self._value.reset(new cpp.Value(id, val, len(val)))
+
     def __str__(self):
         return self._value.get().toString().decode()
     property owner:
@@ -270,6 +272,14 @@ cdef class Value(object):
         def __get__(self):
             return self._value.get().size()
 
+cdef class ValueType(object):
+    cdef cpp.ValueType * _value
+    def __init__(self, cpp.uint16_t id, str name, expiration: timedelta):
+        if not isinstance(expiration, timedelta):
+            raise TypeError("expiration argument must be of type timedelta")
+        cdef cpp.seconds duration = cpp.seconds(int(expiration.total_seconds()))
+        self._value =  new cpp.ValueType(id, name.encode(), duration)
+
 cdef class NodeSetIter(object):
     cdef map[cpp.InfoHash, shared_ptr[cpp.Node]]* _nodes
     cdef map[cpp.InfoHash, shared_ptr[cpp.Node]].iterator _curIter
@@ -319,11 +329,11 @@ cdef class PrivateKey(_WithID):
     cdef shared_ptr[cpp.PrivateKey] _key
     def getId(self):
         h = InfoHash()
-        h._infohash = self._key.get().getPublicKey().getId()
+        h._infohash = self._key.get().getSharedPublicKey().get().getId()
         return h
     def getPublicKey(self):
         pk = PublicKey()
-        pk._key = self._key.get().getPublicKey()
+        pk._key = self._key.get().getSharedPublicKey()
         return pk
     def decrypt(self, bytes dat):
         cdef size_t d_len = len(dat)
@@ -348,17 +358,17 @@ cdef class PrivateKey(_WithID):
         return k
 
 cdef class PublicKey(_WithID):
-    cdef cpp.PublicKey _key
+    cdef cpp.shared_ptr[cpp.PublicKey] _key
     def getId(self):
         h = InfoHash()
-        h._infohash = self._key.getId()
+        h._infohash = self._key.get().getId()
         return h
     def encrypt(self, bytes dat):
         cdef size_t d_len = len(dat)
         cdef cpp.uint8_t* d_ptr = <cpp.uint8_t*>dat
         cdef cpp.Blob indat
         indat.assign(d_ptr, <cpp.uint8_t*>(d_ptr + d_len))
-        cdef cpp.Blob encrypted = self._key.encrypt(indat)
+        cdef cpp.Blob encrypted = self._key.get().encrypt(indat)
         cdef char* encrypted_c_str = <char *>encrypted.data()
         cdef Py_ssize_t length = encrypted.size()
         return encrypted_c_str[:length]
@@ -430,7 +440,7 @@ cdef class Identity(object):
     property publickey:
         def __get__(self):
             k = PublicKey()
-            k._key = self._id.first.get().getPublicKey()
+            k._key = self._id.first.get().getSharedPublicKey()
             return k
     property certificate:
         def __get__(self):
@@ -513,6 +523,8 @@ cdef class DhtRunner(_WithID):
         cb_obj = {'shutdown':shutdown_cb}
         ref.Py_INCREF(cb_obj)
         self.thisptr.get().shutdown(cpp.bindShutdownCb(shutdown_callback, <void*>cb_obj))
+    def registerType(self, ValueType type):
+        self.thisptr.get().registerType(deref(type._value))
     def enableLogging(self):
         cpp.enableLogging(self.thisptr.get()[0])
     def disableLogging(self):

python/opendht_cpp.pxd

@@ -1,4 +1,4 @@
-# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
 #
@@ -26,6 +26,14 @@ from libc.string cimport const_char, const_uchar
 ctypedef uint16_t in_port_t
 ctypedef unsigned short int sa_family_t;
 
+cdef extern from "<iostream>" namespace "std::chrono" nogil:
+    cdef cppclass duration[ulong]:
+        duration() except +
+
+    cdef cppclass seconds:
+        duration seconds(uint64_t) except +
+        duration seconds()
+
 cdef extern from "<memory>" namespace "std" nogil:
     cdef cppclass shared_ptr[T]:
         shared_ptr() except +
@@ -89,7 +97,7 @@ cdef extern from "opendht/crypto.h" namespace "dht::crypto":
 
     cdef cppclass PrivateKey:
         PrivateKey()
-        PublicKey getPublicKey() const
+        shared_ptr[PublicKey] getSharedPublicKey() const
         Blob decrypt(Blob data) const
         @staticmethod
         PrivateKey generate()
@@ -131,7 +139,6 @@ cdef extern from "opendht/value.h" namespace "dht::Value":
 cdef extern from "opendht/value.h" namespace "dht::Value::Field":
     cdef Field None
     cdef Field Id
-    cdef Field ValueType
     cdef Field OwnerPk
     cdef Field SeqNum
     cdef Field UserType
@@ -141,7 +148,7 @@ cdef extern from "opendht/value.h" namespace "dht":
     cdef cppclass Value:
         Value() except +
         Value(vector[uint8_t]) except +
-        Value(const uint8_t* dat_ptr, size_t dat_len) except +
+        Value(const uint16_t t, const uint8_t* dat_ptr, size_t dat_len) except +
         string toString() const
         size_t size() const
         uint64_t id
@@ -150,6 +157,12 @@ cdef extern from "opendht/value.h" namespace "dht":
         vector[uint8_t] data
         string user_type
 
+    cdef cppclass ValueType:
+        ValueType(uint16_t id, string name, seconds expiration) except +
+        uint16_t id
+        string name
+        seconds expiration
+
     cdef cppclass Query:
         Query() except +
         Query(Select s, Where w) except +
@@ -234,6 +247,7 @@ cdef extern from "opendht/dhtrunner.h" namespace "dht":
         void run(const_char*, const_char*, const_char*, Config config)
         void join()
         void shutdown(ShutdownCallback)
+        void registerType(ValueType& value);
         bool isRunning()
         SockAddr getBound(sa_family_t af) const
         string getStorageLog() const

python/pyproject.toml

@@ -0,0 +1,3 @@
+[build-system]
+requires = ["setuptools", "wheel", "Cython"]
+build-backend = "setuptools.build_meta"

python/setup.py.in

@@ -1,4 +1,4 @@
-# Copyright (C) 2015-2019 Savoir-faire Linux Inc.
+# Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 # Author: Guillaume Roguez <guillaume.roguez@savoirfairelinux.com>
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
@@ -50,8 +50,8 @@ setup(name="opendht",
           ["@CURRENT_SOURCE_DIR@/opendht.pyx"],
           include_dirs = ['@PROJECT_SOURCE_DIR@/include'],
           language="c++",
-          extra_compile_args=["-std=c++14"],
-          extra_link_args=["-std=c++14"],
+          extra_compile_args=["-std=c++17"],
+          extra_link_args=["-std=c++17"],
           libraries=["opendht"],
           library_dirs = ['@CURRENT_BINARY_DIR@', '@PROJECT_BINARY_DIR@']
       ))

python/tools/README.md

@@ -20,7 +20,7 @@ help).
 
 ## Python dependencies
 
-- pyroute2 >=0.3.14
+- pyroute2 >=0.6.9
 - matplotlib
 - GeoIP (used by `scanner.py` for drawing map of the world)
 - ipaddress

python/tools/benchmark.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-# Copyright (C) 2015-2019 Savoir-faire Linux Inc.
+# Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
 #

python/tools/dht/network.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
 #
@@ -30,7 +30,7 @@ import traceback
 import ipaddress
 import netifaces
 import numpy as np
-from pyroute2.netns.process.proxy import NSPopen
+from pyroute2 import NSPopen
 import msgpack
 
 from opendht import *

python/tools/dht/tests.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright (C) 2015-2019 Savoir-Faire Linux Inc.
+# Copyright (C) 2015-2022 Savoir-Faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
 

python/tools/dht/virtual_network_builder.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify
@@ -15,107 +15,253 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; If not, see <http://www.gnu.org/licenses/>.
+import argparse
+import os
+import subprocess
 
-import argparse, subprocess
+from pyroute2 import NDB, NSPopen
 
-from pyroute2 import IPDB, NetNS
-from pyroute2.netns.process.proxy import NSPopen
 
-if __name__ == "__main__":
-    parser = argparse.ArgumentParser(description='Creates a virtual network topology for testing')
-    parser.add_argument('-i', '--ifname', help='interface name', default='ethdht')
-    parser.add_argument('-n', '--ifnum', type=int, help='number of isolated interfaces to create', default=1)
-    parser.add_argument('-r', '--remove', help='remove instead of adding network interfaces', action="store_true")
-    parser.add_argument('-l', '--loss', help='simulated packet loss (percent)', type=int, default=0)
-    parser.add_argument('-d', '--delay', help='simulated latency (ms)', type=int, default=0)
-    parser.add_argument('-4', '--ipv4', help='Enable IPv4', action="store_true")
-    parser.add_argument('-6', '--ipv6', help='Enable IPv6', action="store_true")
+def int_range(mini, maxi):
+    def check_ifnum(arg):
+        try:
+            ret = int(arg)
+        except ValueError:
+            raise argparse.ArgumentTypeError('must be an integer')
+        if ret > maxi or ret < mini:
+            raise argparse.ArgumentTypeError(
+                f'must be {mini} <= int <= {maxi}'
+            )
+        return ret
+
+    return check_ifnum
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(
+        description='Creates a virtual network topology for testing'
+    )
+    parser.add_argument(
+        '-i', '--ifname', help='interface name', default='ethdht'
+    )
+    parser.add_argument(
+        '-n',
+        '--ifnum',
+        type=int_range(1, 245),
+        help='number of isolated interfaces to create',
+        default=1,
+    )
+    parser.add_argument(
+        '-r',
+        '--remove',
+        help='remove instead of adding network interfaces',
+        action='store_true',
+    )
+    parser.add_argument(
+        '-l',
+        '--loss',
+        help='simulated packet loss (percent)',
+        type=int,
+        default=0,
+    )
+    parser.add_argument(
+        '-d', '--delay', help='simulated latency (ms)', type=int, default=0
+    )
+    parser.add_argument(
+        '-4', '--ipv4', help='Enable IPv4', action='store_true'
+    )
+    parser.add_argument(
+        '-6', '--ipv6', help='Enable IPv6', action='store_true'
+    )
+    parser.add_argument(
+        '-b',
+        '--debug',
+        help='Turn on debug logging and dump topology databases',
+        action='store_true',
+    )
+    parser.add_argument(
+        '-v',
+        '--verbose',
+        help='Turn on verbose output on netns and interfaces operations',
+        action='store_true',
+    )
 
     args = parser.parse_args()
 
     local_addr4 = '10.0.42.'
     local_addr6 = '2001:db9::'
-    brige_name = 'br'+args.ifname
+    bripv4 = f'{local_addr4}1/24'
+    bripv6 = f'{local_addr6}1/64'
+    bridge_name = f'br{args.ifname}'
+    tap_name = f'tap{args.ifname}'
+    veth_names = []
+    namespaces = []
+    ipv4addrs = []
+    ipv6addrs = []
+    for ifn in range(args.ifnum):
+        namespaces.append(f'node{ifn}')
+        veth_names.append(f'{args.ifname}{ifn}')
+        ipv4addrs.append(f'{local_addr4}{ifn+8}/24' if args.ipv4 else None)
+        ipv6addrs.append(f'{local_addr6}{ifn+8}/64' if args.ipv6 else None)
 
-    ip = None
-    try:
-        ip = IPDB()
+    with NDB(log='debug' if args.debug else None) as ndb:
         if args.remove:
-            # cleanup interfaces
-            for ifn in range(args.ifnum):
-                iface = args.ifname+str(ifn)
-                if iface in ip.interfaces:
-                    with ip.interfaces[iface] as i:
-                        i.remove()
-            if 'tap'+args.ifname in ip.interfaces:
-                with ip.interfaces['tap'+args.ifname] as i:
-                    i.remove()
-            if brige_name in ip.interfaces:
-                with ip.interfaces[brige_name] as i:
-                    i.remove()
-            for ifn in range(args.ifnum):
-                netns = NetNS('node'+str(ifn))
-                netns.close()
-                netns.remove()
-        else:
-            for ifn in range(args.ifnum):
-                iface = args.ifname+str(ifn)
-                if not iface in ip.interfaces:
-                    ip.create(kind='veth', ifname=iface, peer=iface+'.1').commit()
+            # cleanup interfaces in the main namespace
+            for iface in veth_names + [bridge_name] + [tap_name]:
+                if iface in ndb.interfaces:
+                    ndb.interfaces[iface].remove().commit()
+                    if args.verbose:
+                        print(f'link: del main/{iface}')
 
-            ip.create(kind='tuntap', ifname='tap'+args.ifname, mode='tap').commit()
-
-            with ip.create(kind='bridge', ifname=brige_name) as i:
-                for ifn in range(args.ifnum):
-                    iface = args.ifname+str(ifn)
-                    i.add_port(ip.interfaces[iface])
-                i.add_port(ip.interfaces['tap'+args.ifname])
-                if args.ipv4:
-                    i.add_ip(local_addr4+'1/24')
-                if args.ipv6:
-                    i.add_ip(local_addr6+'1/64')
-                i.up()
-
-            with ip.interfaces['tap'+args.ifname] as tap:
-                tap.up()
-
-            for ifn in range(args.ifnum):
-                iface = args.ifname+str(ifn)
-
-                nns = NetNS('node'+str(ifn))
-                iface1 = iface+'.1'
-                with ip.interfaces[iface1] as i:
-                    i.net_ns_fd = nns.netns
-
-                with ip.interfaces[iface] as i:
-                    i.up()
-
-                ip_ns = IPDB(nl=nns)
+            # cleanup namespaces
+            for nsname in namespaces:
                 try:
-                    with ip_ns.interfaces.lo as lo:
-                        lo.up()
-                    with ip_ns.interfaces[iface1] as i:
-                        if args.ipv4:
-                            i.add_ip(local_addr4+str(ifn+8)+'/24')
-                        if args.ipv6:
-                            i.add_ip(local_addr6+str(ifn+8)+'/64')
-                        i.up()
-                finally:
-                    ip_ns.release()
-
-                nsp = NSPopen(nns.netns, ["tc", "qdisc", "add", "dev", iface1, "root", "netem", "delay", str(args.delay)+"ms", str(int(args.delay/2))+"ms", "loss", str(args.loss)+"%", "25%"], stdout=subprocess.PIPE)
-                #print(nsp.communicate()[0].decode())
+                    ndb.netns[nsname].remove().commit()
+                    if args.verbose:
+                        print(f'netns: del {nsname}')
+                except KeyError:
+                    pass
+        else:
+            # create ports
+            for veth, nsname, ipv4addr, ipv6addr in zip(
+                veth_names, namespaces, ipv4addrs, ipv6addrs
+            ):
+                # create a network namespace and launch NDB for it
+                #
+                # another possible solution could be simply to attach
+                # the namespace to the main NDB instance, but it can
+                # take a lot of memory in case of many interfaces, thus
+                # launch and discard netns NDB instances
+                netns = NDB(
+                    log='debug' if args.debug else None,
+                    sources=[
+                        {
+                            'target': 'localhost',
+                            'netns': nsname,
+                            'kind': 'netns',
+                        }
+                    ],
+                )
+                if args.verbose:
+                    print(f'netns: add {nsname}')
+                # create the port and push the peer into the namespace
+                (
+                    ndb.interfaces.create(
+                        **{
+                            'ifname': veth,
+                            'kind': 'veth',
+                            'state': 'up',
+                            'peer': {'ifname': veth, 'net_ns_fd': nsname},
+                        }
+                    ).commit()
+                )
+                if args.verbose:
+                    print(f'link: add main/{veth} <-> {nsname}/{veth}')
+                # bring up namespace's loopback
+                (
+                    netns.interfaces.wait(ifname='lo', timeout=3)
+                    .set('state', 'up')
+                    .commit()
+                )
+                if args.verbose:
+                    print(f'link: set {nsname}/lo')
+                # bring up the peer
+                with netns.interfaces.wait(ifname=veth, timeout=3) as i:
+                    i.set('state', 'up')
+                    if args.ipv4:
+                        i.add_ip(ipv4addr)
+                    if args.ipv6:
+                        i.add_ip(ipv6addr)
+                if args.verbose:
+                    print(f'link: set {nsname}/{veth}, {ipv4addr}, {ipv6addr}')
+                # disconnect the namespace NDB agent, not removing the NS
+                if args.debug:
+                    fname = f'{nsname}-ndb.db'
+                    print(f'dump: netns topology database {fname}')
+                    netns.schema.backup(fname)
+                netns.close()
+                # set up the emulation QDisc
+                nsp = NSPopen(
+                    nsname,
+                    [
+                        'tc',
+                        'qdisc',
+                        'add',
+                        'dev',
+                        veth,
+                        'root',
+                        'netem',
+                        'delay',
+                        f'{args.delay}ms',
+                        f'{int(args.delay)/2}ms',
+                        'loss',
+                        f'{args.loss}%',
+                        '25%',
+                    ],
+                    stdout=subprocess.PIPE,
+                )
                 nsp.communicate()
                 nsp.wait()
                 nsp.release()
+                if args.verbose:
+                    print(
+                        f'netem: add {nsname}/{veth}, '
+                        f'{args.delay}, {args.loss}'
+                    )
 
-            if args.ipv4:
-                subprocess.call(["sysctl", "-w", "net.ipv4.conf."+brige_name+".forwarding=1"])
-            if args.ipv6:
-                subprocess.call(["sysctl", "-w", "net.ipv6.conf."+brige_name+".forwarding=1"])
+            # create the tap
+            #
+            # for some reason we should create the tap inteface first,
+            # and only then bring it up, thus two commit() calls
+            (
+                ndb.interfaces.create(
+                    kind='tuntap', ifname=tap_name, mode='tap'
+                )
+                .commit()
+                .set('state', 'up')
+                .commit()
+            )
+            if args.verbose:
+                print(f'link: add main/{tap_name}')
 
-    except Exception as e:
-          print('Error',e)
-    finally:
-        if ip:
-            ip.release()
+            # create the bridge and add all the ports
+            with ndb.interfaces.create(
+                ifname=bridge_name, kind='bridge', state='up'
+            ) as i:
+                if args.ipv4:
+                    i.add_ip(bripv4)
+                if args.ipv6:
+                    i.add_ip(bripv6)
+                for iface in veth_names + [tap_name]:
+                    i.add_port(iface)
+            if args.verbose:
+                print(f'link: add main/{bridge_name}, {bripv4}, {bripv6}')
+
+            with open(os.devnull, 'w') as fnull:
+                if args.ipv4:
+                    subprocess.call(
+                        [
+                            'sysctl',
+                            '-w',
+                            f'net.ipv4.conf.{bridge_name}.forwarding=1',
+                        ],
+                        stdout=fnull,
+                    )
+                if args.verbose:
+                    print(f'sysctl: set {bridge_name} ipv4 forwarding')
+                if args.ipv6:
+                    subprocess.call(
+                        [
+                            'sysctl',
+                            '-w',
+                            f'net.ipv6.conf.{bridge_name}.forwarding=1',
+                        ],
+                        stdout=fnull,
+                    )
+                if args.verbose:
+                    print(f'sysctl: set {bridge_name} ipv4 forwarding')
+
+            if args.debug:
+                fname = 'main-ndb.db'
+                print('dump: the main netns topology database')
+                ndb.schema.backup(fname)

python/tools/dhtcluster.py

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-# Copyright (C) 2015-2019 Savoir-faire Linux Inc.
+# Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify

python/tools/http_server.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016-2019 Savoir-faire Linux Inc.
+# Copyright (c) 2016-2022 Savoir-faire Linux Inc.
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify

python/tools/network_monitor.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify

python/tools/pingpong.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify
@@ -35,13 +35,21 @@ pong_node.ping(ping_node.getBound())
 loc_ping = dht.InfoHash.get("toto99")
 loc_pong = dht.InfoHash.get(str(loc_ping))
 
+net = []
+for i in range(1,10):
+	node = dht.DhtRunner()
+	node.run(config=config)
+	node.ping(ping_node.getBound())
+	net.append(node)
+
 i = 0
 MAX = 2048
 
 loop = asyncio.get_event_loop()
 
 def done(h, ok):
-	print(h, "over", ok)
+	pass
+	#print(h, "over", ok)
 
 def ping(node, h):
 	global i
@@ -52,13 +60,20 @@ def ping(node, h):
 		loop.stop()
 
 def pong(node, h):
-	print(node.getNodeId().decode(), "got ping", h, i)
+	#print(node.getNodeId().decode(), "got ping", h, i)
 	loop.call_soon_threadsafe(ping, node, h)
 	return True
 
+t1 = time.time()
+
 ping_node.listen(loc_ping, lambda v, e: pong(pong_node, loc_pong) if not e else True)
 pong_node.listen(loc_pong, lambda v, e: pong(ping_node, loc_ping) if not e else True)
 
 ping(pong_node, loc_ping)
 
 loop.run_forever()
+
+t2 = time.time()
+
+print(MAX, "ping-pong done, took", t2 - t1, "s")
+print(1000 * (t2 - t1)/MAX, "ms per rt", MAX/(t2 - t1), "rt per s")

python/tools/scanner.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify
@@ -21,6 +21,7 @@ from math import cos, sin, pi
 import urllib3
 import gzip
 import queue
+from geoip import geolite2
 
 sys.path.append('..')
 from opendht import *
@@ -55,7 +56,7 @@ plt.ion()
 plt.figaspect(2.)
 
 fig, axes = plt.subplots(2, 1)
-fig.set_size_inches(8,16,forward=True)
+#fig.set_size_inches(8,16,forward=True)
 fig.tight_layout()
 fig.canvas.set_window_title('OpenDHT scanner')
 
@@ -90,27 +91,12 @@ def exitcb(arg):
     run = False
 exitbtn.on_clicked(exitcb)
 
-def check_dl(fname, url):
-    if os.path.isfile(fname):
-        return
-    print('downloading', url)
-    ghandle = gzip.GzipFile(fileobj=http.request('GET', url, headers={'User-Agent': 'Mozilla/5.0'}, preload_content=False))
-    with open(fname, 'wb') as out:
-        for line in ghandle:
-            out.write(line)
-
-check_dl("GeoLiteCity.dat", "http://geolite.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz")
-check_dl("GeoLiteCityv6.dat", "http://geolite.maxmind.com/download/geoip/database/GeoLiteCityv6-beta/GeoLiteCityv6.dat.gz")
-
-gi = GeoIP.open("GeoLiteCity.dat", GeoIP.GEOIP_INDEX_CACHE | GeoIP.GEOIP_CHECK_CACHE)
-gi6 = GeoIP.open("GeoLiteCityv6.dat", GeoIP.GEOIP_INDEX_CACHE | GeoIP.GEOIP_CHECK_CACHE)
-
 def gcb(v):
     return True
 
 r = DhtRunner()
 r.run(port=4112)
-r.bootstrap("bootstrap.ring.cx", "4222")
+r.bootstrap("bootstrap.jami.net", "4222")
 
 plt.pause(1)
 
@@ -143,9 +129,9 @@ def nextstep(cur_h, cur_depth, ok, nodes):
         depth = min(8, commonBits+6)
         if cur_depth < depth:
             for b in range(cur_depth, depth):
-                new_h = InfoHash(cur_h.toString());
-                new_h.setBit(b, 1);
-                step(new_h, b+1);
+                new_h = InfoHash(cur_h.toString())
+                new_h.setBit(b, 1)
+                step(new_h, b+1)
     else:
         print("step done with no nodes", ok, cur_h.toString().decode())
     done -= 1
@@ -186,23 +172,22 @@ def appendNewNode(n):
         if addr in nodes_ip6s:
             nodes_ip6s[addr][1] += 1
         else:
-            georecord = gi6.record_by_name_v6(addr)
+            georecord = geolite2.lookup(addr)
             nodes_ip6s[addr] = [n, 1, georecord]
     else:
         if addr in nodes_ip4s:
             nodes_ip4s[addr][1] += 1
         else:
-            georecord = gi.record_by_name(addr)
+            georecord = geolite2.lookup(addr)
             nodes_ip4s[addr] = [n, 1, georecord]
     if georecord:
         appendMapPoint(georecord)
 
 def appendMapPoint(res):
     global lons, lats, cities
-    lons.append(res['longitude'])
-    lats.append(res['latitude'])
-    cities.append(res['city'] if res['city'] else (str(int(res['latitude']))+'-'+str(int(res['longitude']))))
-
+    lons.append(res.location[1])
+    lats.append(res.location[0])
+    cities.append(res.city if res.city else (str(int(res.location[0]))+'-'+str(int(res.location[1]))))
 
 def restart(arg):
     global collection, all_lines, all_nodes, points, done, nodes_ip4s, nodes_ip6s, lats, lons, cities, xys, colors

rust/Cargo.toml

@@ -8,4 +8,4 @@ edition = "2018"
 
 [dependencies]
 libc="0.2.0"
-os_socketaddr="0.1.0"
+os_socketaddr="0.2.3"

rust/examples/dhtnode.rs

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify

rust/src/blob.rs

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify

rust/src/crypto.rs

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify

rust/src/dhtrunner.rs

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -47,6 +47,8 @@ impl DhtRunnerConfig {
             proxy_server: ptr::null(),
             push_node_id: ptr::null(),
             push_token: ptr::null(),
+            push_topic: ptr::null(),
+            push_platform: ptr::null(),
             peer_discovery: false,
             peer_publish: false,
             server_ca: ptr::null_mut(),
@@ -73,6 +75,14 @@ impl DhtRunnerConfig {
         self.push_token = CString::new(push_token).unwrap().as_ptr();
     }
 
+    pub fn set_push_topic(&mut self, push_topic: &str) {
+        self.push_topic = CString::new(push_topic).unwrap().as_ptr();
+    }
+
+    pub fn set_push_platform(&mut self, push_platform: &str) {
+        self.push_platform = CString::new(push_platform).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);

rust/src/ffi.rs

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -118,6 +118,8 @@ pub struct DhtRunnerConfig
     pub proxy_server: *const c_char,
     pub push_node_id: *const c_char,
     pub push_token: *const c_char,
+    pub push_topic: *const c_char,
+    pub push_platform: *const c_char,
     pub peer_discovery: bool,
     pub peer_publish: bool,
     pub server_ca: *mut DhtCertificate,

rust/src/infohash.rs

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify

rust/src/lib.rs

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify

rust/src/pkid.rs

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify

rust/src/value.rs

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2019 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify

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@ -version-number @OPENDHT_MAJOR_VERSION@:@OPENDHT_MINOR_VERSION@:@OPENDHT_PATCH_VERSION@
+libopendht_la_LDFLAGS  = @LDFLAGS@ -version-number @OPENDHT_MAJOR_VERSION@:@OPENDHT_MINOR_VERSION@:@OPENDHT_PATCH_VERSION@
 libopendht_la_SOURCES  = \
         dht.cpp \
         storage.h \
@@ -71,8 +71,8 @@ endif
 
 libopendht_la_SOURCES += base64.h base64.cpp
 if PROXY_CLIENT_OR_SERVER
-libopendht_la_SOURCES += http.cpp
-nobase_include_HEADERS += ../include/opendht/proxy.h ../include/opendht/http.h
+libopendht_la_SOURCES += http.cpp compat/os_cert.cpp
+nobase_include_HEADERS += ../include/opendht/proxy.h ../include/opendht/http.h compat/os_cert.h
 endif
 
 if ENABLE_PEER_DISCOVERY
@@ -84,33 +84,3 @@ if ENABLE_INDEXATION
 libopendht_la_SOURCES += indexation/pht.cpp
 nobase_include_HEADERS += ../include/opendht/indexation/pht.h
 endif
-
-clean-local:
-	rm -rf libargon2.la
-
-######################
-#  ARGON2 submodule  #
-######################
-
-if WITH_INCLUDED_ARGON2
-noinst_LTLIBRARIES         = libargon2.la
-libopendht_la_DEPENDENCIES = libargon2.la
-
-libargon2_la_CFLAGS  = -std=c89 -fPIC -pthread -O3 -Wall -I@top_builddir@/argon2/include -I@top_builddir@/argon2/src
-libargon2_la_SOURCES = \
-        @top_builddir@/argon2/src/argon2.c \
-        @top_builddir@/argon2/src/core.c \
-        @top_builddir@/argon2/src/blake2/blake2b.c \
-        @top_builddir@/argon2/src/thread.c \
-        @top_builddir@/argon2/src/ref.c \
-        @top_builddir@/argon2/src/encoding.c
-
-noinst_HEADERS = \
-        @top_builddir@/argon2/include/argon2.h \
-        @top_builddir@/argon2/src/blake2/blake2.h \
-        @top_builddir@/argon2/src/blake2/blake2-impl.h \
-        @top_builddir@/argon2/src/blake2/blamka-round-ref.h \
-        @top_builddir@/argon2/src/core.h \
-        @top_builddir@/argon2/src/encoding.h \
-        @top_builddir@/argon2/src/thread.h
-endif