dht: use max date for permanent puts

Bumps [pypa/cibuildwheel](https://github.com/pypa/cibuildwheel) from 3.2.1 to 3.3.0.
- [Release notes](https://github.com/pypa/cibuildwheel/releases)
- [Changelog](https://github.com/pypa/cibuildwheel/blob/main/docs/changelog.md)
- [Commits](https://github.com/pypa/cibuildwheel/compare/v3.2.1...v3.3.0)

---
updated-dependencies:
- dependency-name: pypa/cibuildwheel
  dependency-version: 3.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.clang-format

@@ -0,0 +1,99 @@
+Language:        Cpp
+AccessModifierOffset: -4
+AlignAfterOpenBracket: Align
+AlignArrayOfStructures: Left
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignConsecutiveMacros: true
+AlignEscapedNewlines: DontAlign
+AlignOperands:   true
+AlignTrailingComments: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: Inline
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLambdasOnASingleLine: Inline
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterReturnType: TopLevelDefinitions
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: Yes
+BinPackArguments: false
+BinPackParameters: false
+BraceWrapping:
+  AfterClass:      true
+  AfterControlStatement: false
+  AfterEnum:       false
+  AfterFunction:   true
+  AfterNamespace:  false
+  AfterObjCDeclaration: false
+  AfterStruct:     true
+  AfterUnion:      false
+  BeforeCatch:     false
+  BeforeElse:      false
+  IndentBraces:    false
+  SplitEmptyFunction: false
+  SplitEmptyRecord: false
+  SplitEmptyNamespace: false
+BreakBeforeBinaryOperators: All
+BreakBeforeBraces: Custom
+BreakBeforeInheritanceComma: false
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+BreakConstructorInitializers: BeforeComma
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: true
+ColumnLimit:    120
+CommentPragmas:  '^ IWYU pragma:'
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DerivePointerAlignment: false
+DisableFormat:   false
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: true
+ForEachMacros:
+  - forever # avoids { wrapped to next line
+  - foreach
+IncludeIsMainRegex: '(Test)?$'
+IndentCaseLabels: false
+IndentWidth:     4
+IndentWrappedFunctionNames: false
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: false
+MacroBlockBegin: ""
+MacroBlockEnd:   ""
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBlockIndentWidth: 4
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakAssignment: 150
+PenaltyBreakBeforeFirstCallParameter: 300
+PenaltyBreakComment: 500
+PenaltyBreakFirstLessLess: 400
+PenaltyBreakString: 600
+PenaltyExcessCharacter: 50
+PenaltyReturnTypeOnItsOwnLine: 300
+PointerAlignment: Left
+ReflowComments:  true
+SortIncludes:    false
+SortUsingDeclarations: false
+SpaceAfterCStyleCast: true
+SpaceAfterTemplateKeyword: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCpp11BracedList: true
+SpaceBeforeParens: ControlStatements
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles:  false
+SpacesInContainerLiterals: false
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard:        c++17
+TabWidth:        4
+UseTab:          Never

.devcontainer/devcontainer.json

@@ -0,0 +1,15 @@
+{
+	"name": "C++",
+	"build": {
+		"dockerfile": "../docker/DockerfileDepsLlvm",
+	},
+	"runArgs": [ "--cap-add=SYS_PTRACE", "--security-opt", "seccomp=unconfined"],
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"ms-vscode.cpptools"
+			]
+		}
+	},
+	"forwardPorts": [4222],
+}

.github/dependabot.yml

@@ -0,0 +1,22 @@
+version: 2
+updates:
+  - package-ecosystem: "docker"
+    directory: "/docker"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "vcpkg"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "devcontainers"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+  - package-ecosystem: "cargo"
+    directory: "/rust"
+    schedule:
+      interval: "weekly"

.github/workflows/ccpp.yml

@@ -1,34 +1,226 @@
 name: C/C++ CI
 
-on: [push]
+env:
+  LLHTTP_VERSION: "v9.2.1"
+  RESTINIO_VERSION: "0.7.6"
+  EXPECTED_LITE_URL: "https://raw.githubusercontent.com/martinmoene/expected-lite/master/include/nonstd/expected.hpp"
+  UBUNTU_FULL_DEPS: "libncurses5-dev libreadline-dev nettle-dev libasio-dev libgnutls28-dev libuv1-dev python3-pip python3-dev python3-setuptools libcppunit-dev libjsoncpp-dev autotools-dev autoconf libfmt-dev libmsgpack-dev libargon2-dev"
+  UBUNTU_MESON_DEPS: "ninja-build libncurses5-dev libreadline-dev nettle-dev libasio-dev libgnutls28-dev libuv1-dev python3-dev python3-setuptools python3-pip libcppunit-dev libjsoncpp-dev libfmt-dev libmsgpack-dev libargon2-dev"
+  UBUNTU_MINIMAL_DEPS: "libncurses5-dev libreadline-dev nettle-dev libfmt-dev libgnutls28-dev libcppunit-dev libmsgpack-dev libargon2-dev"
+  DEBIAN12_DEPS: "git autotools-dev autoconf libtool m4 automake pkg-config wget cmake libncurses5-dev libreadline-dev nettle-dev libasio-dev libgnutls28-dev libuv1-dev python3-pip python3-dev python3-setuptools libcppunit-dev libjsoncpp-dev libfmt-dev libmsgpack-dev libargon2-dev"
+
+on: [push, pull_request]
 
 jobs:
-  build:
-
+  build-ubuntu:
+    name: Ubuntu/GCC Autotools build
     runs-on: ubuntu-latest
-    
     steps:
-    - uses: actions/checkout@v1
-    - name: deps
-      run: |
-        sudo apt install libncurses5-dev libreadline-dev nettle-dev \
-        libgnutls28-dev libuv1-dev cython3 python3-dev python3-setuptools libcppunit-dev libjsoncpp-dev \
-        autotools-dev autoconf libfmt-dev libhttp-parser-dev libmsgpack-dev
-    - name: autogen
-      run: ./autogen.sh
-    - name: argon2
-      run: |
-        cd argon2 && make && sudo make install && cd ..
-    - name: asio
-      run: |
-        wget https://github.com/aberaud/asio/archive/b2b7a1c166390459e1c169c8ae9ef3234b361e3f.tar.gz \
-        && tar -xvf b2b7a1c166390459e1c169c8ae9ef3234b361e3f.tar.gz && cd asio-b2b7a1c166390459e1c169c8ae9ef3234b361e3f/asio \
-        && ./autogen.sh && ./configure --prefix=/usr --without-boost --disable-examples --disable-tests  \
-        && sudo make install \
-        && cd ../../ && rm -rf asio*
-    - name: configure
-      run: ./configure
-    - name: make
-      run: make
-    - name: make check
-      run: make check
+      - uses: actions/checkout@v6
+
+      - name: Install Dependencies
+        run: |
+          echo "Installing Ubuntu full dependencies:"
+          sudo apt-get update
+          sudo apt-get install -y $UBUNTU_FULL_DEPS
+
+      - name: Install Cython
+        run: sudo pip3 install Cython
+
+      - name: Build llhttp dependency
+        run: |
+          mkdir llhttp
+          wget "https://github.com/nodejs/llhttp/archive/refs/tags/release/${LLHTTP_VERSION}.tar.gz" -O llhttp.tar.gz
+          tar -xzf llhttp.tar.gz -C llhttp --strip-components=1
+          cd llhttp && cmake -DCMAKE_INSTALL_PREFIX=/usr . && make -j2 && sudo make install
+          cd ../ && rm -rf llhttp*
+
+      - name: Install expected-lite header
+        run: |
+          sudo mkdir -p /usr/local/include/nonstd
+          sudo wget "${EXPECTED_LITE_URL}" -O /usr/local/include/nonstd/expected.hpp
+        
+      - name: Install simdutf
+        run: |
+          wget https://github.com/simdutf/simdutf/archive/refs/tags/v7.7.0.tar.gz -O simdutf.tar.gz
+          tar -xzf simdutf.tar.gz
+          mv simdutf-7.7.0 simdutf
+          mkdir simdutf/build && cd simdutf/build
+          cmake -DCMAKE_INSTALL_PREFIX=/usr/local -DSIMDUTF_CXX_STANDARD=17 -DSIMDUTF_TOOLS=Off -DSIMDUTF_TESTS=Off .. && make -j2 && sudo make install
+          cd ../../ && rm -rf simdutf
+
+      - name: Build restinio dependency
+        run: |
+          mkdir restinio && cd restinio
+          wget "https://github.com/Stiffstream/restinio/releases/download/v${RESTINIO_VERSION}/restinio-${RESTINIO_VERSION}.tar.bz2"
+          tar -xjf restinio-${RESTINIO_VERSION}.tar.bz2
+          cd restinio-${RESTINIO_VERSION}/dev
+          cmake -DCMAKE_INSTALL_PREFIX=/usr/local \
+                -DRESTINIO_TEST=Off -DRESTINIO_SAMPLE=Off -DRESTINIO_BENCHMARK=Off \
+                -DRESTINIO_WITH_SOBJECTIZER=Off \
+                -DRESTINIO_DEP_STANDALONE_ASIO=system -DRESTINIO_DEP_LLHTTP=system \
+                -DRESTINIO_DEP_FMT=system -DRESTINIO_DEP_EXPECTED_LITE=system .
+          sudo make install
+          cd ../../ && rm -rf restinio*
+
+      - name: Configure project
+        run: |
+          ./autogen.sh
+          ./configure --enable-proxy-client
+
+      - name: Build
+        run: make
+
+  build-ubuntu-meson:
+    name: Ubuntu/GCC Meson build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Install Dependencies
+        run: |
+          echo "Installing Ubuntu meson dependencies:"
+          sudo apt update
+          sudo apt install -y $UBUNTU_MESON_DEPS
+
+      - name: Install Python dependencies
+        run: sudo pip3 install meson Cython
+
+      - name: Configure with Meson
+        run: meson setup build .
+
+      - name: Build with Ninja
+        run: cd build && ninja
+
+  build-ubuntu-minimal:
+    name: Ubuntu/GCC minimal build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Install Minimal Dependencies
+        run: |
+          echo "Installing Ubuntu minimal dependencies:"
+          sudo apt-get update
+          sudo apt-get install -y $UBUNTU_MINIMAL_DEPS
+
+      - name: Configure project with CMake
+        run: |
+          mkdir build && cd build
+          cmake .. -DCMAKE_INSTALL_PREFIX=/usr/local \
+                   -DCMAKE_BUILD_TYPE=Debug \
+                   -DOPENDHT_C=Off -DBUILD_TESTING=On \
+                   -DOPENDHT_PEER_DISCOVERY=Off -DOPENDHT_PYTHON=Off \
+                   -DOPENDHT_TOOLS=On -DOPENDHT_PROXY_SERVER=Off -DOPENDHT_PROXY_CLIENT=Off
+
+      - name: Build
+        run: cd build && make
+
+      - name: Run Unit tests
+        run: ctest --output-on-failure --test-dir build
+
+  build-debian12:
+    name: Debian 12/GCC build
+    runs-on: ubuntu-latest
+
+    container:
+      image: debian:12
+      volumes:
+        - .:/workspace
+      options: --workdir /workspace
+      env:
+        DEBIAN_FRONTEND: noninteractive
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Install Dependencies
+        run: |
+          apt-get update
+          apt-get install -y $DEBIAN12_DEPS
+
+      - name: Build llhttp dependency
+        run: |
+          mkdir llhttp
+          wget "https://github.com/nodejs/llhttp/archive/refs/tags/release/${LLHTTP_VERSION}.tar.gz" -O llhttp.tar.gz
+          tar -xzf llhttp.tar.gz -C llhttp --strip-components=1
+          cd llhttp && cmake -DCMAKE_INSTALL_PREFIX=/usr . && make -j2 && make install
+          cd ../ && rm -rf llhttp*
+
+      - name: Install expected-lite header
+        run: |
+          mkdir -p /usr/local/include/nonstd
+          wget "${EXPECTED_LITE_URL}" -O /usr/local/include/nonstd/expected.hpp
+
+      - name: Build restinio dependency
+        run: |
+          mkdir restinio && cd restinio
+          wget "https://github.com/Stiffstream/restinio/releases/download/v${RESTINIO_VERSION}/restinio-${RESTINIO_VERSION}.tar.bz2"
+          tar -xjf restinio-${RESTINIO_VERSION}.tar.bz2
+          cd restinio-${RESTINIO_VERSION}/dev
+          cmake -DCMAKE_INSTALL_PREFIX=/usr/local \
+                -DRESTINIO_TEST=Off -DRESTINIO_SAMPLE=Off -DRESTINIO_BENCHMARK=Off \
+                -DRESTINIO_WITH_SOBJECTIZER=Off \
+                -DRESTINIO_DEP_STANDALONE_ASIO=system -DRESTINIO_DEP_LLHTTP=system \
+                -DRESTINIO_DEP_FMT=system -DRESTINIO_DEP_EXPECTED_LITE=system .
+          make install
+          cd ../../ && rm -rf restinio*
+
+      - name: Configure project with CMake
+        run: |
+          mkdir build && cd build
+          cmake .. -DCMAKE_BUILD_TYPE=Debug \
+                   -DOPENDHT_C=On -DBUILD_TESTING=On \
+                   -DOPENDHT_PEER_DISCOVERY=On -DOPENDHT_PYTHON=Off \
+                   -DOPENDHT_TOOLS=On -DOPENDHT_PROXY_SERVER=On \
+                   -DOPENDHT_PROXY_CLIENT=On
+
+      - name: Build
+        run: cd build && make
+
+  build-macos:
+    name: macOS/Clang build
+    runs-on: macos-15
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Install Homebrew Dependencies
+        run: brew install msgpack-cxx asio gnutls nettle readline fmt jsoncpp argon2 openssl cppunit
+
+      - name: Install expected-lite header
+        run: |
+          sudo mkdir -p /usr/local/include/nonstd
+          sudo wget "${EXPECTED_LITE_URL}" -O /usr/local/include/nonstd/expected.hpp
+
+      - name: Build restinio dependency
+        run: |
+          mkdir restinio && cd restinio
+          wget "https://github.com/Stiffstream/restinio/releases/download/v${RESTINIO_VERSION}/restinio-${RESTINIO_VERSION}.tar.bz2"
+          tar -xjf restinio-${RESTINIO_VERSION}.tar.bz2
+          cd restinio-${RESTINIO_VERSION}/dev
+          cmake -DCMAKE_INSTALL_PREFIX=/usr/local \
+                -DRESTINIO_TEST=Off -DRESTINIO_SAMPLE=Off -DRESTINIO_BENCHMARK=Off \
+                -DRESTINIO_WITH_SOBJECTIZER=Off \
+                -DRESTINIO_DEP_STANDALONE_ASIO=system -DRESTINIO_DEP_LLHTTP=system \
+                -DRESTINIO_DEP_FMT=system -DRESTINIO_DEP_EXPECTED_LITE=system .
+          make -j2 && sudo make install
+          cd ../../ && rm -rf restinio*
+
+      - name: Configure project with CMake
+        run: |
+          mkdir build && cd build
+          # Set Homebrew OpenSSL paths
+          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 \
+                   -DOPENDHT_DOWNLOAD_DEPS=ON \
+                   -DCMAKE_BUILD_TYPE=Debug \
+                   -DOPENDHT_C=On -DBUILD_TESTING=On \
+                   -DOPENDHT_PEER_DISCOVERY=On -DOPENDHT_PYTHON=Off \
+                   -DOPENDHT_TOOLS=On -DOPENDHT_PROXY_SERVER=On \
+                   -DOPENDHT_PROXY_CLIENT=On -DOPENDHT_PUSH_NOTIFICATIONS=On
+
+      - name: Build
+        run: cd build && make

.github/workflows/clang-analyzer.yml

@@ -0,0 +1,42 @@
+name: Clang Static Analysis
+on: [push, pull_request]
+
+jobs:
+  clang-analyzer:
+    name: Clang Static Analysis
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - name: deps
+        run: |
+          sudo apt update && \
+          sudo apt install libncurses5-dev libreadline-dev nettle-dev \
+          libgnutls28-dev libuv1-dev python3-dev python3-setuptools libcppunit-dev libjsoncpp-dev \
+          autotools-dev autoconf libfmt-dev libmsgpack-dev libargon2-dev libasio-dev \
+          llvm llvm-dev clang clang-tools && \
+          sudo apt remove gcc g++
+
+      - name: expected-lite
+        run: |
+          sudo mkdir /usr/include/nonstd && \
+          sudo wget https://raw.githubusercontent.com/martinmoene/expected-lite/master/include/nonstd/expected.hpp \
+            -O /usr/include/nonstd/expected.hpp
+
+      - name: restinio
+        run: |
+          mkdir restinio && cd restinio
+          wget https://github.com/Stiffstream/restinio/releases/download/v.0.7.3/restinio-0.7.3.tar.bz2
+          ls -l && tar -xjf restinio-0.7.3.tar.bz2
+          cd restinio-0.7.3/dev
+          cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=Off -DRESTINIO_SAMPLE=Off -DRESTINIO_BENCHMARK=Off \
+                  -DRESTINIO_WITH_SOBJECTIZER=Off -DRESTINIO_DEP_STANDALONE_ASIO=system -DRESTINIO_DEP_LLHTTP=system \
+                  -DRESTINIO_DEP_FMT=system -DRESTINIO_DEP_EXPECTED_LITE=system .
+          make -j2 && 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_DOWNLOAD_DEPS=ON -DOPENDHT_PEER_DISCOVERY=On -DOPENDHT_PYTHON=Off -DOPENDHT_TOOLS=On -DOPENDHT_PROXY_SERVER=On -DOPENDHT_PROXY_CLIENT=On -DOPENDHT_PUSH_NOTIFICATIONS=On
+      - name: scan-build
+        run: cd build && scan-build --status-bugs make

.github/workflows/codeql.yml

@@ -0,0 +1,41 @@
+name: "CodeQL Advanced"
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  analyze:
+    name: Analyze (${{ matrix.language }})
+    runs-on: 'ubuntu-latest'
+    permissions:
+      security-events: write
+      packages: read
+      actions: read
+      contents: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+        - language: c-cpp
+          build-mode: autobuild
+        - language: actions
+          build-mode: none
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v6
+
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v4
+      with:
+        languages: ${{ matrix.language }}
+        build-mode: ${{ matrix.build-mode }}
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v4
+      with:
+        category: "/language:${{matrix.language}}"

.github/workflows/python-wheels.yml

@@ -0,0 +1,108 @@
+name: Python Package
+
+permissions:
+  contents: read
+
+on:
+  release:
+    types: [published]
+  push:
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  build_wheels:
+    name: Build wheels on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, ubuntu-24.04-arm, macos-latest]
+
+    steps:
+      - uses: actions/checkout@v6
+
+      # Run locally with: pipx run cibuildwheel --platform linux python
+      - name: Build wheels
+        uses: pypa/cibuildwheel@v3.3.0
+        with:
+          package-dir: python
+
+      - uses: actions/upload-artifact@v5
+        with:
+          name: opendht-wheels-${{ matrix.os }}
+          path: ./wheelhouse/*.whl
+  
+  build_wheels_windows:
+    name: Build wheels on Windows
+    runs-on: windows-latest
+    env:
+      VCPKG_VERSION: "2025.07.25"
+      VCPKG_INSTALLATION_ROOT: "C:\\vcpkg"
+      VCPKG_DISABLE_METRICS: "1"
+      VCPKG_DEFAULT_TRIPLET: x64-windows-release
+      VCPKG_INSTALLED_DIR: ${{ github.workspace }}\vcpkg_installed
+      VCPKG_DEFAULT_BINARY_CACHE: ${{ github.workspace }}\vcpkg_binary_cache
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Cache vcpkg installed packages
+        id: cache-vcpkg
+        uses: actions/cache@v4
+        with:
+          path: |
+            ${{ env.VCPKG_INSTALLED_DIR }}
+            ${{ env.VCPKG_DEFAULT_BINARY_CACHE }}
+          key: ${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-${{ env.VCPKG_DEFAULT_TRIPLET }}-${{ hashFiles('**/vcpkg.json', '**/vcpkg-configuration.json') }}-${{ hashFiles('.github/workflows/windows-build.yml') }}
+
+      - name: Setup vcpkg and install dependencies
+        if: steps.cache-vcpkg.outputs.cache-hit != 'true'
+        run: |
+          New-Item -Path "${{ env.VCPKG_INSTALLED_DIR }}" -ItemType Directory -Force
+          New-Item -Path "${{ env.VCPKG_DEFAULT_BINARY_CACHE }}" -ItemType Directory -Force
+          vcpkg install `
+            --recurse `
+            --clean-after-build `
+            --triplet=${{ env.VCPKG_DEFAULT_TRIPLET }} `
+            --x-install-root=${{ env.VCPKG_INSTALLED_DIR }}
+        shell: pwsh
+
+      - name: Build wheels
+        run: |
+          pip install cython delvewheel build
+          cmake -S . -B build `
+            -DCMAKE_BUILD_TYPE=Release `
+            -DVCPKG_TARGET_TRIPLET=${{ env.VCPKG_DEFAULT_TRIPLET }} `
+            -DCMAKE_TOOLCHAIN_FILE=${{ env.VCPKG_INSTALLATION_ROOT }}\scripts\buildsystems\vcpkg.cmake `
+            -DVCPKG_INSTALLED_DIR=${{ env.VCPKG_INSTALLED_DIR }} `
+            -DBUILD_TESTING=OFF `
+            -DOPENDHT_C=OFF `
+            -DOPENDHT_TOOLS=OFF `
+            -DOPENDHT_PYTHON=ON `
+            -DOPENDHT_DOCUMENTATION=OFF `
+            -DOPENDHT_PROXY_CLIENT=ON `
+            -DOPENDHT_PROXY_SERVER=ON
+          cd build
+          pipx run cibuildwheel python
+        shell: pwsh
+
+      - uses: actions/upload-artifact@v5
+        with:
+          name: opendht-wheels-win_amd64
+          path: ./build/wheelhouse/*.whl
+
+  publish:
+    runs-on: ubuntu-latest
+    needs: [build_wheels, build_wheels_windows]
+    steps:
+    - uses: actions/download-artifact@v6
+      with:
+        pattern: opendht-wheels-*
+        path: dist
+        merge-multiple: true
+
+    - name: Publish package
+      if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
+      uses: pypa/gh-action-pypi-publish@release/v1
+      with:
+        password: ${{ secrets.PYPI_API_TOKEN }}

.github/workflows/release-package.yml

@@ -0,0 +1,470 @@
+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
+  IMAGE_NAME_ALPINE: ${{ github.repository }}/opendht-alpine
+  IMAGE_NAME_ALPINE_DEPS: ${{ github.repository }}/opendht-deps-alpine
+
+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@v6
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_DEPS }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        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@v6
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        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@v6
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_DEPS_LLVM }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        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@v6
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_LLVM }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        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@v6
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_DHTNODE }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: docker/DockerfileDhtnode
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+  build-and-push-image-alpine-deps:
+    name: Alpine Deps Docker image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_ALPINE_DEPS }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: docker/DockerfileDepsAlpine
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+  build-and-push-image-alpine:
+    name: Alpine Docker image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_ALPINE }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: docker/DockerfileAlpine
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+  build-windows-msi:
+    name: Build Windows MSI Installer
+    runs-on: windows-latest
+    env:
+      VCPKG_VERSION: "2025.07.25"
+      VCPKG_INSTALLATION_ROOT: "C:\\vcpkg"
+      VCPKG_DISABLE_METRICS: "1"
+      VCPKG_DEFAULT_TRIPLET: x64-windows
+      VCPKG_INSTALLED_DIR: ${{ github.workspace }}\vcpkg_installed
+      VCPKG_DEFAULT_BINARY_CACHE: ${{ github.workspace }}\vcpkg_binary_cache
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Set up MSVC developer environment
+        uses: microsoft/setup-msbuild@v2
+      
+      - name: Install WIX using .net tools
+        run: |
+          dotnet tool install --global wix --version 6.0.1
+          wix extension add --global WixToolset.UI.wixext/6.0.1
+        shell: pwsh
+
+      - name: Cache vcpkg installed packages
+        id: cache-vcpkg
+        uses: actions/cache@v4
+        with:
+          path: |
+            ${{ env.VCPKG_INSTALLED_DIR }}
+            ${{ env.VCPKG_DEFAULT_BINARY_CACHE }}
+          key: ${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-x64-shared-${{ hashFiles('**/vcpkg.json', '**/vcpkg-configuration.json') }}-${{ hashFiles('.github/workflows/windows-build.yml') }}
+
+      - name: Setup vcpkg and install dependencies
+        if: steps.cache-vcpkg.outputs.cache-hit != 'true'
+        run: |
+          New-Item -Path "${{ env.VCPKG_INSTALLED_DIR }}" -ItemType Directory -Force
+          New-Item -Path "${{ env.VCPKG_DEFAULT_BINARY_CACHE }}" -ItemType Directory -Force
+          vcpkg install `
+            --recurse `
+            --clean-after-build `
+            --triplet=x64-windows `
+            --x-install-root=${{ env.VCPKG_INSTALLED_DIR }} `
+            --x-feature=test
+        shell: pwsh
+
+      - name: Configure CMake for MSI
+        shell: pwsh
+        run: |
+          mkdir build -ErrorAction SilentlyContinue
+          cmake -B build `
+            -S . `
+            -DCMAKE_TOOLCHAIN_FILE=${{ env.VCPKG_INSTALLATION_ROOT }}/scripts/buildsystems/vcpkg.cmake `
+            -DVCPKG_TARGET_TRIPLET=x64-windows `
+            -DVCPKG_INSTALLED_DIR=${{ env.VCPKG_INSTALLED_DIR }} `
+            -DVCPKG_MANIFEST_FEATURES=test `
+            -DCMAKE_BUILD_TYPE=Release `
+            -DOPENDHT_C=On `
+            -DOPENDHT_TOOLS=On `
+            -DOPENDHT_PYTHON=Off `
+            -DOPENDHT_DOCUMENTATION=OFF `
+            -DOPENDHT_PEER_DISCOVERY=On `
+            -DOPENDHT_PROXY_SERVER=On `
+            -DOPENDHT_PROXY_CLIENT=On `
+            -DOPENDHT_HTTP=On `
+            -DBUILD_TESTING=Off `
+            -DOPENDHT_CPACK=On `
+            -A x64
+
+      - name: Build with MSVC
+        shell: pwsh
+        run: |
+          cmake --build build --config Release --parallel $([System.Environment]::ProcessorCount)
+          # Copy vcpkg installed libraries to the build directory
+          Copy-Item -Path "${{ env.VCPKG_INSTALLED_DIR }}\x64-windows\lib\*.lib" -Destination "build" -Force
+          Copy-Item -Path "${{ env.VCPKG_INSTALLED_DIR }}\x64-windows\bin\*.dll" -Destination "build" -Force
+
+      - name: Package MSI with CPack
+        shell: pwsh
+        id: cpack_msi
+        run: |
+          cd build
+          cpack -C Release -G WIX
+          $msiFile = Get-ChildItem -Path . -Recurse -Filter *.msi | Select-Object -First 1
+          if ($msiFile) {
+            $msiOutputPath = "opendht-installer.msi" # Standardized artifact name
+            Copy-Item $msiFile.FullName -Destination $msiOutputPath
+            echo "msi_path=$msiOutputPath" | Out-File -FilePath $env:GITHUB_OUTPUT -Encoding utf8 -Append
+            Write-Host "MSI created at build/$msiOutputPath"
+          } else {
+            Write-Error "MSI file not found after cpack execution!"
+            exit 1
+          }
+
+      - name: Upload MSI Artifact
+        uses: actions/upload-artifact@v5
+        with:
+          name: opendht-windows-msi
+          path: build/${{ steps.cpack_msi.outputs.msi_path }} # Path to the MSI in the build directory
+          retention-days: 7
+
+  build-windows-dhtnode:
+    name: Build Windows dhtnode
+    runs-on: windows-latest
+    env:
+      VCPKG_VERSION: "2025.07.25"
+      VCPKG_INSTALLATION_ROOT: "C:\\vcpkg"
+      VCPKG_DISABLE_METRICS: "1"
+      VCPKG_DEFAULT_TRIPLET: x64-windows-static-release
+      VCPKG_INSTALLED_DIR: ${{ github.workspace }}\vcpkg_installed
+      VCPKG_DEFAULT_BINARY_CACHE: ${{ github.workspace }}\vcpkg_binary_cache
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Set up MSVC developer environment
+        uses: microsoft/setup-msbuild@v2
+
+      - name: Cache vcpkg static installed packages
+        id: cache-vcpkg-static
+        uses: actions/cache@v4
+        with:
+          path: |
+            ${{ env.VCPKG_INSTALLED_DIR }}
+            ${{ env.VCPKG_DEFAULT_BINARY_CACHE }}
+          key: ${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-x64-static-${{ hashFiles('**/vcpkg.json', '**/vcpkg-configuration.json') }}-${{ hashFiles('.github/workflows/windows-build.yml') }}
+          restore-keys: |
+            ${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-x64-static-${{ hashFiles('**/vcpkg.json', '**/vcpkg-configuration.json') }}
+            ${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-x64-static-
+
+      - name: Setup vcpkg and install static dependencies
+        if: steps.cache-vcpkg-static.outputs.cache-hit != 'true'
+        shell: pwsh
+        run: |
+          New-Item -Path "${{ env.VCPKG_INSTALLED_DIR }}" -ItemType Directory -Force
+          New-Item -Path "${{ env.VCPKG_DEFAULT_BINARY_CACHE }}" -ItemType Directory -Force
+          vcpkg install `
+            --recurse `
+            --clean-after-build `
+            --triplet=x64-windows-static-release `
+            --x-install-root=${{ env.VCPKG_INSTALLED_DIR }} `
+            --x-feature=test
+
+      - name: Configure CMake for Static Build
+        shell: pwsh
+        run: |
+          mkdir build_static -ErrorAction SilentlyContinue
+          cmake -B build_static `
+            -S . `
+            -DCMAKE_TOOLCHAIN_FILE=${{ env.VCPKG_INSTALLATION_ROOT }}/scripts/buildsystems/vcpkg.cmake `
+            -DVCPKG_TARGET_TRIPLET=x64-windows-static-release `
+            -DVCPKG_INSTALLED_DIR=${{ env.VCPKG_INSTALLED_DIR }} `
+            -DVCPKG_MANIFEST_FEATURES=test `
+            -DCMAKE_BUILD_TYPE=Release `
+            -DBUILD_SHARED_LIBS=OFF `
+            -DOPENDHT_PROXY_CLIENT=ON `
+            -DOPENDHT_PROXY_SERVER=ON `
+            -DOPENDHT_C=ON `
+            -DOPENDHT_TOOLS=ON `
+            -DOPENDHT_DOCUMENTATION=OFF `
+            -DOPENDHT_PYTHON=OFF `
+            -DOPENDHT_PEER_DISCOVERY=ON `
+            -DOPENDHT_HTTP=ON `
+            -A x64
+
+      - name: Build Static dhtnode
+        shell: pwsh
+        run: |
+          cmake --build build_static --config Release --parallel $([System.Environment]::ProcessorCount)
+
+      - name: Upload Static dhtnode Artifact
+        uses: actions/upload-artifact@v5
+        with:
+          name: opendht-windows-dhtnode
+          path: |
+            build_static/**/*dhtnode.exe
+          retention-days: 7
+
+  create-github-release:
+    name: Create GitHub Release
+    runs-on: ubuntu-latest
+    needs: [build-windows-msi, build-windows-dhtnode]
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Download Windows MSI artifact
+        uses: actions/download-artifact@v6
+        with:
+          name: opendht-windows-msi
+          path: downloaded_artifacts/windows_msi
+
+      - name: Download Static dhtnode artifact
+        uses: actions/download-artifact@v6
+        with:
+          name: opendht-windows-dhtnode
+          path: downloaded_artifacts/static_dhtnode
+
+      - name: Create Release
+        id: create_release
+        uses: softprops/action-gh-release@v2
+        with:
+          draft: true
+          files: |
+            downloaded_artifacts/windows_msi/*.msi
+            downloaded_artifacts/static_dhtnode/**/*dhtnode.exe

.github/workflows/windows-build.yml

@@ -0,0 +1,379 @@
+name: Windows Build
+permissions:
+  contents: read
+
+on: 
+  push:
+    branches: [ main, master ]
+  pull_request:
+    branches: [ main, master ]
+
+env:
+  VCPKG_VERSION: "2025.07.25"
+  VCPKG_INSTALLATION_ROOT: "C:\\vcpkg"
+  VCPKG_DISABLE_METRICS: "1"
+  VCPKG_INSTALLED_DIR: ${{ github.workspace }}\vcpkg_installed
+  VCPKG_DEFAULT_BINARY_CACHE: ${{ github.workspace }}\vcpkg_binary_cache
+
+jobs:
+  prepare-dependencies:
+    name: Prepare Windows Dependencies
+    runs-on: windows-latest
+    outputs:
+      vcpkg_cache_key: ${{ steps.generate_cache_key.outputs.key }}
+    strategy:
+      matrix:
+        arch: [x64]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up MSVC
+        uses: microsoft/setup-msbuild@v2
+
+      - name: Generate Cache Key
+        id: generate_cache_key
+        shell: pwsh
+        run: |
+          $key_value = "${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-${{ matrix.arch }}-shared-${{ hashFiles('**/vcpkg.json', '**/vcpkg-configuration.json') }}-${{ hashFiles('.github/workflows/windows-build.yml') }}"
+          echo "key=$key_value" >> $env:GITHUB_OUTPUT
+
+      - name: Cache vcpkg installed packages
+        id: cache-vcpkg
+        uses: actions/cache@v4
+        with:
+          path: |
+            ${{ env.VCPKG_INSTALLED_DIR }}
+            ${{ env.VCPKG_DEFAULT_BINARY_CACHE }}
+          key: ${{ steps.generate_cache_key.outputs.key }}
+          restore-keys: |
+            ${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-${{ matrix.arch }}-shared-${{ hashFiles('**/vcpkg.json', '**/vcpkg-configuration.json') }}
+            ${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-${{ matrix.arch }}-shared-
+
+      - name: Setup vcpkg and install dependencies
+        if: steps.cache-vcpkg.outputs.cache-hit != 'true'
+        run: |
+          New-Item -Path "${{ env.VCPKG_INSTALLED_DIR }}" -ItemType Directory -Force
+          New-Item -Path "${{ env.VCPKG_DEFAULT_BINARY_CACHE }}" -ItemType Directory -Force
+          vcpkg install `
+            --recurse `
+            --clean-after-build `
+            --triplet=${{ matrix.arch }}-windows `
+            --x-install-root=${{ env.VCPKG_INSTALLED_DIR }} `
+            --x-feature=test
+        shell: pwsh
+
+  prepare-static-dependencies:
+    name: Prepare Windows Static Dependencies
+    runs-on: windows-latest
+    outputs:
+      vcpkg_static_cache_key: ${{ steps.generate_static_cache_key.outputs.key }}
+    strategy:
+      matrix:
+        arch: [x64]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up MSVC
+        uses: microsoft/setup-msbuild@v2
+
+      - name: Generate Cache Key for Static Libs
+        id: generate_static_cache_key
+        shell: pwsh
+        run: |
+          $key_value = "${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-${{ matrix.arch }}-static-${{ hashFiles('**/vcpkg.json', '**/vcpkg-configuration.json') }}-${{ hashFiles('.github/workflows/windows-build.yml') }}"
+          echo "key=$key_value" >> $env:GITHUB_OUTPUT
+
+      - name: Cache vcpkg static installed packages
+        id: cache-vcpkg-static
+        uses: actions/cache@v4
+        with:
+          path: |
+            ${{ env.VCPKG_INSTALLED_DIR }}
+            ${{ env.VCPKG_DEFAULT_BINARY_CACHE }}
+          key: ${{ steps.generate_static_cache_key.outputs.key }}
+          restore-keys: |
+            ${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-${{ matrix.arch }}-static-${{ hashFiles('**/vcpkg.json', '**/vcpkg-configuration.json') }}
+            ${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-${{ matrix.arch }}-static-
+
+      - name: Setup vcpkg and install static dependencies
+        if: steps.cache-vcpkg-static.outputs.cache-hit != 'true'
+        shell: pwsh
+        run: |
+          New-Item -Path "${{ env.VCPKG_INSTALLED_DIR }}" -ItemType Directory -Force
+          New-Item -Path "${{ env.VCPKG_DEFAULT_BINARY_CACHE }}" -ItemType Directory -Force
+          vcpkg install `
+            --recurse `
+            --clean-after-build `
+            --triplet=${{ matrix.arch }}-windows-static-release `
+            --x-install-root=${{ env.VCPKG_INSTALLED_DIR }} `
+            --x-feature=test
+
+  build-windows:
+    name: Windows MSVC Build
+    runs-on: windows-latest
+    needs: prepare-dependencies
+    
+    strategy:
+      matrix:
+        build_type: [Debug, Release]
+        arch: [x64]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up MSVC
+        uses: microsoft/setup-msbuild@v2
+
+      - name: Restore vcpkg installed packages
+        id: cache-vcpkg-restore
+        uses: actions/cache/restore@v4
+        with:
+          path: |
+            ${{ env.VCPKG_INSTALLED_DIR }}
+            ${{ env.VCPKG_DEFAULT_BINARY_CACHE }}
+          key: ${{ needs.prepare-dependencies.outputs.vcpkg_cache_key }}
+          restore-keys: |
+            ${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-${{ matrix.arch }}-shared-${{ hashFiles('**/vcpkg.json', '**/vcpkg-configuration.json') }}
+            ${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-${{ matrix.arch }}-shared-
+
+      - name: Configure CMake
+        shell: pwsh
+        run: |
+          mkdir build -ErrorAction SilentlyContinue
+          cmake -B build `
+            -S . `
+            -DCMAKE_TOOLCHAIN_FILE=${{ env.VCPKG_INSTALLATION_ROOT }}/scripts/buildsystems/vcpkg.cmake `
+            -DVCPKG_TARGET_TRIPLET=${{ matrix.arch }}-windows `
+            -DVCPKG_INSTALLED_DIR=${{ env.VCPKG_INSTALLED_DIR }} `
+            -DVCPKG_MANIFEST_FEATURES=test `
+            -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} `
+            -DBUILD_TESTING=ON `
+            -DOPENDHT_PROXY_CLIENT=ON `
+            -DOPENDHT_PROXY_SERVER=ON `
+            -DOPENDHT_C=ON `
+            -DOPENDHT_TOOLS=ON `
+            -DOPENDHT_PYTHON=OFF `
+            -DOPENDHT_DOCUMENTATION=OFF `
+            -DOPENDHT_PEER_DISCOVERY=ON `
+            -DOPENDHT_HTTP=ON `
+            -A ${{ matrix.arch }}
+
+      - name: Build
+        run: |
+          cmake --build build --config ${{ matrix.build_type }} --parallel 4
+          # Copy vcpkg installed libraries to the build directory
+          Copy-Item -Path "${{ env.VCPKG_INSTALLED_DIR }}\${{ matrix.arch }}-windows\lib\*.lib" -Destination "build" -Force
+          Copy-Item -Path "${{ env.VCPKG_INSTALLED_DIR }}\${{ matrix.arch }}-windows\bin\*.dll" -Destination "build" -Force
+
+      - name: Test
+        if: matrix.build_type == 'Release'
+        run: |
+          cd build
+          ctest --build-config ${{ matrix.build_type }} --output-on-failure --parallel 4
+
+      - name: Upload build artifacts
+        if: matrix.build_type == 'Release'
+        uses: actions/upload-artifact@v5
+        with:
+          name: opendht-windows-${{ matrix.arch }}-${{ matrix.build_type }}
+          path: |
+            build/**/*.exe
+            build/**/*.dll
+            build/**/*.lib
+          retention-days: 7
+
+  build-windows-static:
+    name: Windows Static MSVC Build
+    runs-on: windows-latest
+    needs: prepare-static-dependencies
+    strategy:
+      matrix:
+        build_type: [Release]
+        arch: [x64]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up MSVC
+        uses: microsoft/setup-msbuild@v2
+
+      - name: Restore vcpkg static installed packages
+        id: cache-vcpkg-static-restore
+        uses: actions/cache/restore@v4
+        with:
+          path: |
+            ${{ env.VCPKG_INSTALLED_DIR }}
+            ${{ env.VCPKG_DEFAULT_BINARY_CACHE }}
+          key: ${{ needs.prepare-static-dependencies.outputs.vcpkg_static_cache_key }}
+          restore-keys: |
+            ${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-${{ matrix.arch }}-static-${{ hashFiles('**/vcpkg.json', '**/vcpkg-configuration.json') }}
+            ${{ runner.os }}-vcpkg-${{ env.VCPKG_VERSION }}-${{ matrix.arch }}-static-
+      
+      - name: Configure CMake for Static Build
+        shell: pwsh
+        run: |
+          mkdir build -ErrorAction SilentlyContinue
+          cmake -B build `
+            -S . `
+            -DCMAKE_TOOLCHAIN_FILE=${{ env.VCPKG_INSTALLATION_ROOT }}/scripts/buildsystems/vcpkg.cmake `
+            -DVCPKG_TARGET_TRIPLET=${{ matrix.arch }}-windows-static-release `
+            -DVCPKG_INSTALLED_DIR=${{ env.VCPKG_INSTALLED_DIR }} `
+            -DVCPKG_MANIFEST_FEATURES=test `
+            -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} `
+            -DBUILD_SHARED_LIBS=OFF `
+            -DBUILD_TESTING=ON `
+            -DOPENDHT_PROXY_CLIENT=ON `
+            -DOPENDHT_PROXY_SERVER=ON `
+            -DOPENDHT_C=ON `
+            -DOPENDHT_TOOLS=ON `
+            -DOPENDHT_PYTHON=OFF `
+            -DOPENDHT_DOCUMENTATION=OFF `
+            -DOPENDHT_PEER_DISCOVERY=ON `
+            -DOPENDHT_HTTP=ON `
+            -A ${{ matrix.arch }}
+
+      - name: Build Static
+        shell: pwsh
+        run: |
+          cmake --build build --config ${{ matrix.build_type }} --parallel 4
+
+      - name: Test Static Build
+        shell: pwsh
+        run: |
+          cd build
+          ctest --build-config ${{ matrix.build_type }} --output-on-failure --parallel 4
+
+      - name: Upload static build artifacts
+        uses: actions/upload-artifact@v5
+        with:
+          name: opendht-windows-static-${{ matrix.arch }}-${{ matrix.build_type }}
+          path: |
+            build/**/*.exe
+            build/**/*.lib
+          retention-days: 7
+
+  build-windows-mingw:
+    name: Windows MinGW Build
+    runs-on: windows-latest
+    
+    strategy:
+      matrix:
+        build_type: [Release]
+        #build_type: [Debug, Release]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Setup MinGW
+        uses: msys2/setup-msys2@v2
+        with:
+          msystem: MINGW64
+          update: true
+          install: >-
+            mingw-w64-x86_64-gcc
+            mingw-w64-x86_64-cmake
+            mingw-w64-x86_64-make
+            mingw-w64-x86_64-ninja
+            mingw-w64-x86_64-pkg-config
+            mingw-w64-x86_64-cppunit
+            mingw-w64-x86_64-readline
+            mingw-w64-x86_64-ncurses
+            mingw-w64-x86_64-gnutls
+            mingw-w64-x86_64-nettle
+            mingw-w64-x86_64-jsoncpp
+            mingw-w64-x86_64-fmt
+            mingw-w64-x86_64-asio
+            mingw-w64-x86_64-argon2
+            mingw-w64-x86_64-openssl
+            mingw-w64-clang-x86_64-msgpack-cxx
+
+      - name: Prepare dependencies from source (expected-lite, llhttp, restinio)
+        shell: msys2 {0}
+        env:
+          LLHTTP_VERSION: "v9.2.1"
+          RESTINIO_VERSION: "0.7.6"
+          EXPECTED_LITE_URL: "https://raw.githubusercontent.com/martinmoene/expected-lite/master/include/nonstd/expected.hpp"
+        run: |
+          MSYS2_SYSROOT=$(cygpath -u "$MSYSTEM_PREFIX")
+
+          # Install expected-lite header
+          mkdir -p ${MSYS2_SYSROOT}/include/nonstd
+          curl -L "${EXPECTED_LITE_URL}" -o ${MSYS2_SYSROOT}/include/nonstd/expected.hpp
+
+          # Build and install llhttp
+          mkdir llhttp
+          curl -L "https://github.com/nodejs/llhttp/archive/refs/tags/release/${LLHTTP_VERSION}.tar.gz" -o llhttp.tar.gz
+          tar -xzf llhttp.tar.gz -C llhttp --strip-components=1
+          cd llhttp
+          cmake -G "MinGW Makefiles" \
+                -DCMAKE_INSTALL_PREFIX=${MSYS2_SYSROOT} \
+                -DCMAKE_BUILD_TYPE=Release .
+          cmake --build . --parallel 2
+          cmake --install .
+          cd ..
+          rm -rf llhttp*
+          
+          # Build and install restinio
+          mkdir restinio && cd restinio
+          curl -L "https://github.com/Stiffstream/restinio/releases/download/v${RESTINIO_VERSION}/restinio-${RESTINIO_VERSION}.tar.bz2" -o restinio.tar.bz2
+          tar -xjf restinio.tar.bz2
+          cd restinio-${RESTINIO_VERSION}/dev
+          cmake -G "MinGW Makefiles" \
+                -DCMAKE_INSTALL_PREFIX=${MSYS2_SYSROOT} \
+                -DCMAKE_BUILD_TYPE=Release \
+                -DRESTINIO_TEST=Off -DRESTINIO_SAMPLE=Off -DRESTINIO_BENCHMARK=Off \
+                -DRESTINIO_WITH_SOBJECTIZER=Off \
+                -DRESTINIO_DEP_STANDALONE_ASIO=system -DRESTINIO_DEP_LLHTTP=system \
+                -DRESTINIO_DEP_FMT=system -DRESTINIO_DEP_EXPECTED_LITE=system .
+          cmake --install .
+          cd ../../..
+          rm -rf restinio*
+
+          # Copy msgpack-cxx headers
+          mkdir -p ${MSYS2_SYSROOT}/include/msgpack
+          cp -r /clang64/include/msgpack/* ${MSYS2_SYSROOT}/include/msgpack/
+          cp /clang64/include/msgpack.hpp ${MSYS2_SYSROOT}/include/msgpack.hpp
+
+      - name: Build with MinGW
+        shell: msys2 {0}
+        run: |
+          mkdir build_mingw
+          cd build_mingw
+          cmake .. \
+            -G "MinGW Makefiles" \
+            -DHAVE_MSGPACKCXX=ON \
+            -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} \
+            -DBUILD_TESTING=ON \
+            -DOPENDHT_PROXY_CLIENT=ON \
+            -DOPENDHT_PROXY_SERVER=ON \
+            -DOPENDHT_C=ON \
+            -DOPENDHT_TOOLS=ON \
+            -DOPENDHT_PYTHON=OFF \
+            -DOPENDHT_DOCUMENTATION=OFF \
+            -DOPENDHT_PEER_DISCOVERY=ON \
+            -DOPENDHT_HTTP=ON
+          cmake --build . --parallel 4
+
+      #- name: Test MinGW Build
+      #  shell: msys2 {0}
+      #  run: |
+      #    cd build_mingw
+      #    ctest --output-on-failure --parallel 4
+
+      - name: Upload MinGW artifacts
+        if: matrix.build_type == 'Release'
+        uses: actions/upload-artifact@v5
+        with:
+          name: opendht-windows-mingw-${{ matrix.build_type }}
+          path: |
+            build_mingw/**/*.exe
+            build_mingw/**/*.dll
+            build_mingw/**/*.a
+          retention-days: 7

.gitignore

@@ -19,6 +19,9 @@
 *.exe
 *.out
 *.app
+**/dhtnode
+**/dhtchat
+**/dhtscanner
 
 # Autotools
 /ac
@@ -42,13 +45,19 @@ Makefile.in
 *~
 *.pc
 
-# KDevelop
-.kdev4/
-*.kdev4
+# CMake
+CMakeCache.txt
+CMakeFiles/
+cmake_install.cmake
+*ConfigVersion.cmake
 
 # VSCode
 .vscode/*
 
+# Visual Studio
+.vs/
+CMakeSettings.json
+
 # Eclipse CDT
 .cproject
 .project
@@ -60,6 +69,9 @@ language.settings.xml
 *.stamp
 python/opendht.cpp
 python/setup.py
+python/dist/
+wheelhouse/
+*.egg-info/
 
 # Doxygen
 doc/Doxyfile
@@ -73,3 +85,9 @@ doc/Doxyfile
 
 # build dir
 build
+build_dev
+.DS_Store
+build-*/
+install/
+vcpkg_installed/
+

.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": "${workspaceFolder}/build/tools/dhtnode",
+            "args": ["-v", "-p", "4222"],
+            "cwd": "${workspaceFolder}/build",
+            "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": "${workspaceFolder}/build/opendht_unit_tests",
+            "cwd": "${workspaceFolder}/build",
+            "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/settings.json

@@ -0,0 +1,10 @@
+{
+    "C_Cpp.default.compileCommands": "${workspaceFolder}/build/compile_commands.json",
+    "C_Cpp.default.cppStandard": "c++17",
+    "C_Cpp.default.cStandard": "c11",
+    "C_Cpp.autoAddFileAssociations": false,
+    "cmake.configureOnOpen": false,
+    "cmake.configureOnEdit": false,
+    "editor.formatOnSave": true,
+    "files.eol": "\n",
+}

.vscode/tasks.json

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

BUILD.md

@@ -0,0 +1,124 @@
+# Build the library
+
+The build is currently tested on GNU/Linux, macOS, and Windows.
+
+## Unix-like systems (Linux, macOS, MSYS2/MinGW, etc.)
+
+## Install dependencies
+
+### Debian 13
+
+```sh
+# Install dependencies
+sudo apt install pkg-config libncurses5-dev libreadline-dev nettle-dev libgnutls28-dev libargon2-dev libmsgpack-dev libssl-dev libfmt-dev libjsoncpp-dev libhttp-parser-dev libasio-dev libmsgpack-cxx-dev
+
+# Install Python binding dependencies
+sudo apt-get install cython3 python3-dev python3-setuptools python3-build
+```
+
+Optionally, install RESTinio to enable the OpenDHT proxy client and server:
+```sh
+mkdir /usr/include/nonstd
+wget https://raw.githubusercontent.com/martinmoene/expected-lite/master/include/nonstd/expected.hpp -O /usr/include/nonstd/expected.hpp
+
+wget https://github.com/Stiffstream/restinio/releases/download/v.0.7.3/restinio-0.7.3.tar.bz2
+tar -xjf restinio-0.7.3.tar.bz2
+cd restinio-0.7.3/dev
+cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=Off -DRESTINIO_SAMPLE=Off -DRESTINIO_BENCHMARK=Off -DRESTINIO_WITH_SOBJECTIZER=Off -DRESTINIO_DEP_STANDALONE_ASIO=system -DRESTINIO_DEP_LLHTTP=system -DRESTINIO_DEP_FMT=system -DRESTINIO_DEP_EXPECTED_LITE=system .
+make -j2 && make install
+```
+
+To run openDHT on a different computer from the build computer, the following runtime dependencies are required:
+```sh
+sudo apt install libargon2-1 libjsoncpp26
+```
+
+### Ubuntu 24.04 and Debian 12
+
+```sh
+# Install dependencies
+sudo apt install pkg-config libncurses5-dev libreadline-dev nettle-dev libgnutls28-dev libargon2-0-dev libmsgpack-dev libssl-dev libfmt-dev libjsoncpp-dev libhttp-parser-dev libasio-dev
+
+# Install Python binding dependencies
+sudo apt-get install cython3 python3-dev python3-setuptools python3-build
+```
+
+Optionally, install RESTinio to enable the OpenDHT proxy client and server:
+```sh
+mkdir /usr/include/nonstd
+wget https://raw.githubusercontent.com/martinmoene/expected-lite/master/include/nonstd/expected.hpp -O /usr/include/nonstd/expected.hpp
+
+wget https://github.com/Stiffstream/restinio/releases/download/v.0.7.3/restinio-0.7.3.tar.bz2
+tar -xjf restinio-0.7.3.tar.bz2
+cd restinio-0.7.3/dev
+cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=Off -DRESTINIO_SAMPLE=Off -DRESTINIO_BENCHMARK=Off -DRESTINIO_WITH_SOBJECTIZER=Off -DRESTINIO_DEP_STANDALONE_ASIO=system -DRESTINIO_DEP_LLHTTP=system -DRESTINIO_DEP_FMT=system -DRESTINIO_DEP_EXPECTED_LITE=system .
+make -j2 && make install
+```
+
+### Fedora
+
+```sh
+# Install GnuTLS, Readline and msgpack-c
+sudo dnf install readline-devel gnutls-devel msgpack-devel asio-devel libargon2-devel fmt-devel
+# Install python binding dependencies
+sudo dnf install python3-Cython python3-devel redhat-rpm-config
+```
+
+### macOS
+
+```sh
+brew install gnutls msgpack-cxx argon2 asio readline jsoncpp fmt
+```
+
+## Build
+
+Using CMake:
+
+```sh
+# Clone the repository
+git clone https://github.com/savoirfairelinux/opendht.git
+
+# Build and install
+cd opendht
+mkdir build && cd build
+cmake -DCMAKE_INSTALL_PREFIX=/usr ..
+make -j$(nproc)
+sudo make install
+```
+
+#### Example Configurations
+
+Minimal build (libraries only):
+```sh
+cmake -DOPENDHT_TOOLS=OFF ..
+```
+
+Full-featured build with proxy support, Python, and C bindings:
+```sh
+cmake -DOPENDHT_PYTHON=ON \
+      -DOPENDHT_C=ON \
+      -DOPENDHT_PROXY_SERVER=ON \
+      -DOPENDHT_PROXY_SERVER_IDENTITY=ON \
+      -DOPENDHT_PROXY_CLIENT=ON \
+      -DOPENDHT_PUSH_NOTIFICATIONS=ON \
+      -DCMAKE_INSTALL_PREFIX=/usr ..
+```
+
+## Windows/MSVC
+
+Building on Windows with MSVC is supported with VCPKG and CMake.
+
+### Build with VCPKG in manifest mode
+
+1. Install [VCPKG](https://github.com/microsoft/vcpkg) and required dependencies:
+```ps1
+git clone https://github.com/microsoft/vcpkg.git
+cd vcpkg; .\bootstrap-vcpkg.bat
+```
+
+2. Use CMake preset for vcpkg:
+```ps1
+cd opendht
+cmake --preset=vcpkg_manifest .
+cmake --build .
+```

CMakePresets.json

@@ -0,0 +1,250 @@
+{
+  "version": 2,
+  "configurePresets": [
+    {
+      "name": "default",
+      "binaryDir": "${sourceDir}/build",
+      "hidden": true
+    },
+    {
+      "name": "unix-make",
+      "description": "Unix Makefiles",
+      "generator": "Unix Makefiles",
+      "inherits": "default",
+      "cacheVariables": {
+        "CMAKE_EXPORT_COMPILE_COMMANDS": true
+      }
+    },
+    {
+      "name": "unix-make-full",
+      "description": "Unix Makefiles (Full build)",
+      "inherits": "unix-make",
+      "cacheVariables": {
+        "OPENDHT_C": true,
+        "OPENDHT_PROXY_CLIENT": true,
+        "OPENDHT_PROXY_SERVER": true,
+        "OPENDHT_PUSH_NOTIFICATIONS": true,
+        "OPENDHT_PYTHON": true,
+        "OPENDHT_INDEX": true,
+        "BUILD_TESTING": true,
+        "OPENDHT_EXAMPLES": true
+      }
+    },
+    {
+      "name": "unix-make-release",
+      "description": "Unix Makefiles (Release build)",
+      "inherits": "unix-make-full",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "Release",
+        "BUILD_SHARED_LIBS": true,
+        "BUILD_TESTING": false,
+        "OPENDHT_SANITIZE": false,
+        "OPENDHT_EXAMPLES": false
+      }
+    },
+    {
+      "name": "ninja",
+      "generator": "Ninja",
+      "inherits": "default",
+      "cacheVariables": {
+        "CMAKE_EXPORT_COMPILE_COMMANDS": true
+      }
+    },
+    {
+      "name": "ninja-release",
+      "inherits": "ninja",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "Release",
+        "BUILD_SHARED_LIBS": true,
+        "BUILD_TESTING": false,
+        "OPENDHT_SANITIZE": false,
+        "OPENDHT_CPACK": true,
+        "OPENDHT_C": true,
+        "OPENDHT_PROXY_CLIENT": true,
+        "OPENDHT_PROXY_SERVER": true
+      }
+    },
+    {
+      "name": "msvc",
+      "generator": "Visual Studio 17 2022",
+      "inherits": "default",
+      "cacheVariables": {
+        "BUILD_TESTING": true,
+        "VCPKG_MANIFEST_FEATURES": "test",
+        "OPENDHT_PROXY_CLIENT": false,
+        "OPENDHT_PROXY_SERVER": false,
+        "OPENDHT_C": true
+      }
+    },
+    {
+      "name": "vcpkg_manifest",
+      "inherits": "msvc",
+      "cacheVariables": {
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+        "BUILD_TESTING": false,
+        "OPENDHT_PROXY_CLIENT": true,
+        "OPENDHT_PROXY_SERVER": true,
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+        "OPENDHT_CPACK": true,
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+      "inherits": "vcpkg_local",
+      "cacheVariables": {
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+        "BUILD_SHARED_LIBS": false,
+        "VCPKG_TARGET_TRIPLET": "x64-windows-static-release",
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+        "BUILD_TESTING": false,
+        "OPENDHT_PROXY_CLIENT": true,
+        "OPENDHT_PROXY_SERVER": true,
+        "OPENDHT_CPACK": true
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+    }
+  ],
+  "buildPresets": [
+    {
+      "name": "default",
+      "configurePreset": "default",
+      "hidden": true
+    },
+    {
+      "name": "unix-make",
+      "inherits": "default",
+      "configurePreset": "unix-make"
+    },
+    {
+      "name": "ninja",
+      "inherits": "default",
+      "configurePreset": "ninja"
+    },
+    {
+      "name": "msvc",
+      "inherits": "default",
+      "configurePreset": "msvc"
+    },
+    {
+      "name": "vcpkg-dev",
+      "inherits": "default",
+      "configurePreset": "vcpkg_manifest"
+    },
+    {
+      "name": "vcpkg-release-static",
+      "inherits": "default",
+      "configurePreset": "vcpkg_release_static_full",
+      "configuration": "Release"
+    },
+    {
+      "name": "vcpkg-release",
+      "inherits": "default",
+      "configurePreset": "vcpkg_release_full",
+      "configuration": "Release"
+    }
+  ]
+}

COPYING.txt

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
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+
+                            Preamble
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+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

MSVC/.gitignore

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-    </PostBuildEvent>
-    <Lib>
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-    </Lib>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-    <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
-      <Optimization>MaxSpeed</Optimization>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\include;$(ProjectDir)..\include\opendht;$(ProjectDir)..\..\..\msvc\include;$(ProjectDir)..\..\include;$(ProjectDir)..\..\argon2\include;$(ProjectDir)..\..\msgpack-c\include;$(ProjectDir)..\..\jsoncpp\include;$(ProjectDir)..\..\openssl\inc32;$(ProjectDir)..\..\asio\asio\include;$(ProjectDir)..\..\restinio\dev;$(ProjectDir)..\..\fmt\include;$(ProjectDir)..\..\http_parser</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>OPENDHT_JSONCPP;OPENDHT_PROXY_CLIENT;OPENDHT_PROXY_SERVER;OPENDHT_PUSH_NOTIFICATIONS;_WINSOCK_DEPRECATED_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;ASIO_STANDALONE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <DisableSpecificWarnings>4804;4800;4101;4267;4244;4503;4273;</DisableSpecificWarnings>
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-    </ClCompile>
-    <Link>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
-    </Link>
-    <PostBuildEvent>
-      <Command>mkdir $(OutDir)\include
-mkdir $(OutDir)\include\opendht
-mkdir $(OutDir)\include\opendht\indexation
-copy ..\include\opendht\indexation\*.h $(OutDir)\include\opendht\indexation
-copy ..\include\opendht\*.h $(OutDir)\include\opendht
-copy ..\include\opendht.h $(OutDir)\include\</Command>
-    </PostBuildEvent>
-    <Lib>
-      <OutputFile>$(OutDir)lib\$(PlatformTarget)\$(TargetName)$(TargetExt)</OutputFile>
-      <LinkTimeCodeGeneration>false</LinkTimeCodeGeneration>
-    </Lib>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-    <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
-      <Optimization>Full</Optimization>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\include;$(ProjectDir)..\include\opendht;$(ProjectDir)..\..\..\msvc\include;$(ProjectDir)..\..\include;$(ProjectDir)..\..\argon2\include;$(ProjectDir)..\..\msgpack-c\include;$(ProjectDir)..\..\jsoncpp\include;$(ProjectDir)..\..\openssl\inc32;$(ProjectDir)..\..\asio\asio\include;$(ProjectDir)..\..\restinio\dev;$(ProjectDir)..\..\fmt\include;$(ProjectDir)..\..\http_parser</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>OPENDHT_JSONCPP;OPENDHT_PROXY_CLIENT;OPENDHT_PROXY_SERVER;OPENDHT_PUSH_NOTIFICATIONS;_WINSOCK_DEPRECATED_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32_NATIVE;WIN32_LEAN_AND_MEAN;ASIO_STANDALONE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <DisableSpecificWarnings>4804;4800;4101;4267;4244;4503;4273;</DisableSpecificWarnings>
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-    <Link>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
-    </Link>
-    <PostBuildEvent>
-      <Command>mkdir $(OutDir)\include
-mkdir $(OutDir)\include\opendht
-mkdir $(OutDir)\include\opendht\indexation
-copy ..\include\opendht\indexation\*.h $(OutDir)\include\opendht\indexation
-copy ..\include\opendht\*.h $(OutDir)\include\opendht
-copy ..\include\opendht.h $(OutDir)\include\</Command>
-    </PostBuildEvent>
-    <Lib>
-      <OutputFile>$(OutDir)lib\$(PlatformTarget)\$(TargetName)$(TargetExt)</OutputFile>
-      <LinkTimeCodeGeneration>false</LinkTimeCodeGeneration>
-      <AdditionalLibraryDirectories>
-      </AdditionalLibraryDirectories>
-    </Lib>
-  </ItemDefinitionGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-  <ImportGroup Label="ExtensionTargets">
-  </ImportGroup>
-</Project>

MSVC/opendht.vcxproj.filters

@@ -1,198 +0,0 @@
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-<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup>
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-      <Filter>Source Files</Filter>
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-      <Filter>Source Files</Filter>
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-    <ClCompile Include="..\src\dhtrunner.cpp">
-      <Filter>Source Files</Filter>
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-    <ClCompile Include="..\src\infohash.cpp">
-      <Filter>Source Files</Filter>
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-    <ClCompile Include="..\src\log.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\network_engine.cpp">
-      <Filter>Source Files</Filter>
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-    <ClCompile Include="..\src\node.cpp">
-      <Filter>Source Files</Filter>
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-    <ClCompile Include="..\src\node_cache.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\routing_table.cpp">
-      <Filter>Source Files</Filter>
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-    <ClCompile Include="..\src\securedht.cpp">
-      <Filter>Source Files</Filter>
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-    <ClCompile Include="..\src\utils.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
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-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\base64.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\dht_proxy_server.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\indexation\pht.cpp">
-      <Filter>Source Files\indexation</Filter>
-    </ClCompile>
-    <ClCompile Include="wingetopt.c" />
-    <ClCompile Include="..\src\rng.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\op_cache.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\dht_proxy_client.cpp">
-      <Filter>Source Files</Filter>
-    </ClCompile>
-    <ClCompile Include="..\src\peer_discovery.cpp">
-      <Filter>Source Files</Filter>
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-      <Filter>Source Files</Filter>
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-    <ClCompile Include="..\src\http.cpp">
-      <Filter>Source Files</Filter>
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-  </ItemGroup>
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-    <ClInclude Include="unistd.h" />
-    <ClInclude Include="wingetopt.h" />
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-    <ClInclude Include="..\src\net.h">
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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 +4,9 @@
     <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.
+![PyPI - Version](https://img.shields.io/pypi/v/opendht?style=flat)
+
+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.
@@ -14,21 +16,21 @@ 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
+ * 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>
 
+#### How to run a node
+
+You can help contribute to the public network by running a stable node with a public IP address.
+https://github.com/savoirfairelinux/opendht/wiki/Running-a-node-with-dhtnode
+
 #### How-to build and install
 
-Build instructions: <https://github.com/savoirfairelinux/opendht/wiki/Build-the-library>
-
-#### How-to build a simple client app
-```bash
-g++ main.cpp -std=c++14 -lopendht
-```
+Build instructions: see [BUILD.md](BUILD.md)
 
 ## Examples
 ### C++ example
@@ -73,14 +75,22 @@ int main()
     return 0;
 }
 ```
+
 ### Python 3 example
+
+Install on Linux, macOS and Windows with:
+```sh
+pip install opendht
+```
+
+Using the simple, blocking API:
 ```python
 import opendht as dht
 
 node = dht.DhtRunner()
 node.run()
 
-# Join the network through any running node,
+# Join the DHT network through any running node,
 # here using a known bootstrap node.
 node.bootstrap("bootstrap.jami.net", "4222")
 
@@ -88,25 +98,64 @@ node.bootstrap("bootstrap.jami.net", "4222")
 node.put(dht.InfoHash.get("unique_key"), dht.Value(b'some binary data'))
 
 results = node.get(dht.InfoHash.get("unique_key"))
-for r in results:
-    print(r)
+for value in results:
+    print(value)
+```
+
+Or using asyncio:
+```python
+import asyncio
+import opendht.aio as dht
+
+async def dht_async_demo(key_str: str):
+    # Start a new node using an async context manager.
+    # It is also possible to call run()/await shutdown() manually.
+    async with dht.DhtRunner(
+        bootstrap=(("bootstrap.jami.net", "4222"),)
+    ) as node:
+        # compute key hash
+        key = dht.InfoHash.get(key_str)
+
+        # put data, waiting for completion
+        await node.put(key, dht.Value(b'tata data'))
+
+        # get all values at key
+        results = await node.getAll(key)
+        for value in results:
+            print(value)
+        
+        # same operation, but stream values as they come from the network
+        with node.get(key) as results:
+            async for value in results:
+                print(value)
+
+        # listen for change of values at key
+        with node.listen(key) as values:
+            async for value, expired in values:
+                print(value)
+                if value.data == b'tata data':
+                    break
+
+asyncio.run(dht_async_demo("unique_key"))
 ```
 
 ## Dependencies
 - msgpack-c 1.2+, used for data serialization.
 - GnuTLS 3.3+, used for cryptographic operations.
 - Nettle 2.4+, a GnuTLS dependency for crypto.
+- {fmt} 9.0+, for log formatting.
 - (optional) restinio used for the REST API.
+- (optional) llhttp 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 9+ (GNU/Linux, Windows with MinGW), Clang/LLVM (GNU/Linux, Android, macOS, iOS).
+- Build tested with Microsoft Visual Studio 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) 2014-2020 Savoir-faire Linux Inc.
+Copyright (C) 2014-2025 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.
 
@@ -116,7 +165,3 @@ See COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html for the full GPLv3 l
 
 ## Acknowledgements
 This project was originally based on https://github.com/jech/dht by Juliusz Chroboczek.
-It is independent from another project called OpenDHT (Sean Rhea. Ph.D. Thesis, 2005), now extinct.
-
-## Donations
-We gratefully accept Bitcoin donations to support OpenDHT development at: `bitcoin:3EykSd1An888efq4Bq3KaV3hJ3JQ4FPnwm`.

autogen.sh

@@ -1,2 +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) 2014-2025 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) {
@@ -97,8 +128,22 @@ 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_with_id_new(const uint8_t* data, size_t size, uint64_t value_id) {
+    return reinterpret_cast<dht_value*>(new ValueSp(std::make_shared<dht::Value>(dht::ValueType::USER_DATA.id, data, size, value_id)));
+}
+
 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)));
+    return dht_value_with_id_new(data, size, 0);
+}
+
+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) {
@@ -144,9 +189,13 @@ 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 +222,18 @@ 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) {
@@ -205,9 +265,14 @@ dht_pkid dht_certificate_get_long_id(const dht_certificate* c) {
 
 dht_publickey* dht_certificate_get_publickey(const dht_certificate* c) {
     const auto& cert = *reinterpret_cast<const CertSp*>(c);
-    return reinterpret_cast<dht_publickey*>(new PubkeySp(std::make_shared<dht::crypto::PublicKey>(cert->getPublicKey())));
+    return reinterpret_cast<dht_publickey*>(new PubkeySp(cert->getSharedPublicKey()));
 }
 
+#ifdef __cplusplus
+} // extern "C"
+// Function with internal C++ linkage
+#endif
+
 // dht::crypto::Identity
 inline dht::crypto::Identity dht_identity_from_c(const dht_identity* cid) {
     dht::crypto::Identity id {};
@@ -225,6 +290,10 @@ inline dht_identity dht_identity_to_c(const dht::crypto::Identity& id) {
     return cid;
 }
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 OPENDHT_C_PUBLIC dht_identity dht_identity_generate(const char* common_name, const dht_identity* ca) {
     return dht_identity_to_c(dht::crypto::generateIdentity(common_name, dht_identity_from_c(ca)));
 }
@@ -242,12 +311,12 @@ OPENDHT_C_PUBLIC void dht_identity_delete(dht_identity* id) {
 
 // config
 void dht_runner_config_default(dht_runner_config* config) {
-    bzero(config, sizeof(dht_runner_config));
+    memset(config, 0, sizeof(dht_runner_config));
     config->threaded = true;
 }
 
 // dht::DhtRunner
-dht_runner* dht_runner_new() {
+dht_runner* dht_runner_new(void) {
     return reinterpret_cast<dht_runner*>(new dht::DhtRunner);
 }
 
@@ -255,39 +324,67 @@ 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.proxy_user_agent = conf->proxy_user_agent ? std::string(conf->proxy_user_agent) : std::string{};
+        config.peer_discovery   = conf->peer_discovery;
+        config.peer_publish     = conf->peer_publish;
+        if (conf->server_ca)
+            config.server_ca    = *reinterpret_cast<const CertSp*>(conf->server_ca);
+        config.client_identity  = dht_identity_from_c(&conf->client_identity);
+
+        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 +423,11 @@ 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 +493,17 @@ 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 +524,8 @@ 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

@@ -1,16 +1,43 @@
+/*
+ *  Copyright (C) 2014-2025 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 <sys/socket.h>
-#include <netinet/in.h>
+#include <opendht/def.h>
+
 #include <stdbool.h>
 #include <stdint.h>
 #include <stddef.h>
 
+#ifdef _WIN32
+#include <winsock2.h>
+#include <ws2tcpip.h>
+typedef uint16_t sa_family_t;
+typedef uint16_t in_port_t;
+#else
+#include <sys/socket.h>
+#include <netinet/in.h>
+#endif
+
 // Non-owning data view
 struct OPENDHT_C_PUBLIC dht_data_view {
     const uint8_t* data;
@@ -18,6 +45,8 @@ 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 +59,7 @@ 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 +88,7 @@ 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
@@ -69,7 +100,7 @@ OPENDHT_C_PUBLIC dht_pkid dht_certificate_get_long_id(const dht_certificate*);
 OPENDHT_C_PUBLIC dht_publickey* dht_certificate_get_publickey(const dht_certificate*);
 OPENDHT_C_PUBLIC void dht_certificate_delete(dht_certificate*);
 
-struct OPENDHT_PUBLIC dht_identity {
+struct OPENDHT_C_PUBLIC dht_identity {
     dht_privatekey* privatekey;
     dht_certificate* certificate;
 };
@@ -82,6 +113,8 @@ 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_with_id_new(const uint8_t* data, size_t size, uint64_t value_id);
+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 +122,7 @@ 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);
@@ -101,7 +135,7 @@ typedef struct dht_op_token dht_op_token;
 OPENDHT_C_PUBLIC void dht_op_token_delete(dht_op_token* token);
 
 // config
-struct OPENDHT_PUBLIC dht_node_config {
+struct OPENDHT_C_PUBLIC dht_node_config {
     dht_infohash node_id;
     uint32_t network;
     bool is_bootstrap;
@@ -110,22 +144,26 @@ struct OPENDHT_PUBLIC dht_node_config {
 };
 typedef struct dht_node_config dht_node_config;
 
-struct OPENDHT_PUBLIC dht_secure_config {
+struct OPENDHT_C_PUBLIC dht_secure_config {
     dht_node_config node_config;
     dht_identity id;
 };
 typedef struct dht_secure_config dht_secure_config;
 
-struct OPENDHT_PUBLIC dht_runner_config {
+struct OPENDHT_C_PUBLIC dht_runner_config {
     dht_secure_config dht_config;
     bool threaded;
     const char* proxy_server;
     const char* push_node_id;
     const char* push_token;
+    const char* push_topic;
+    const char* push_platform;
+    const char* proxy_user_agent;
     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 +171,13 @@ 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 +189,9 @@ 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 +1,126 @@
+# 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)
+    check_library_exists(atomic __atomic_fetch_add_4 "" HAVE_LIBATOMIC)
+    if(HAVE_LIBATOMIC)
+      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()
+    else()
+      #message(FATAL_ERROR "Host compiler appears to require libatomic, but unable to find it.")
+    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)
+    check_library_exists(atomic __atomic_load_8 "" HAVE_CXX_LIBATOMICS64)
+    if(HAVE_CXX_LIBATOMICS64)
+      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()
+    else()
+      #message(FATAL_ERROR "Host compiler appears to require libatomic for 64-bit operations, but unable to find it.")
+    endif()
+  endif()
+endif()
+
+# Set variable LLVM_ATOMIC_LIB specifying flags for linking against libatomic.
+if(HAVE_CXX_ATOMICS_WITH_LIB OR HAVE_CXX_ATOMICS64_WITH_LIB)
+  # Use options --push-state, --as-needed and --pop-state if linker is known to support them.
+  # Use single option -Wl of compiler driver to avoid incorrect re-ordering of options by CMake.
+  if(LLVM_LINKER_IS_GNULD OR LLVM_LINKER_IS_GOLD OR LLVM_LINKER_IS_LLD OR LLVM_LINKER_IS_MOLD)
+    set(LLVM_ATOMIC_LIB "-Wl,--push-state,--as-needed,-latomic,--pop-state")
+  else()
+    set(LLVM_ATOMIC_LIB "-latomic")
+  endif()
+else()
+  set(LLVM_ATOMIC_LIB)
+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)

cmake/WindowsUtils.cmake

@@ -0,0 +1,21 @@
+# Windows utility functions and macros
+
+# Determine Windows NT version for compatibility
+# https://stackoverflow.com/a/40217291/9560245
+macro(get_WIN32_WINNT version)
+    if(CMAKE_SYSTEM_VERSION)
+        set(ver ${CMAKE_SYSTEM_VERSION})
+        string(REGEX MATCH "^([0-9]+).([0-9])" ver ${ver})
+        string(REGEX MATCH "^([0-9]+)" verMajor ${ver})
+        # Check for Windows 10, b/c we'll need to convert to hex 'A'.
+        if("${verMajor}" MATCHES "10")
+            set(verMajor "A")
+            string(REGEX REPLACE "^([0-9]+)" ${verMajor} ver ${ver})
+        endif()
+        # Remove all remaining '.' characters.
+        string(REPLACE "." "" ver ${ver})
+        # Prepend each digit with a zero.
+        string(REGEX REPLACE "([0-9A-Z])" "0\\1" ver ${ver})
+        set(${version} "0x${ver}")
+    endif()
+endmacro()

configure.ac

@@ -1,11 +1,12 @@
 dnl define macros
-m4_define([opendht_major_version], 2)
-m4_define([opendht_minor_version], 0)
+m4_define([opendht_major_version], 3)
+m4_define([opendht_minor_version], 6)
 m4_define([opendht_patch_version], 0)
 m4_define([opendht_version],
 		  [opendht_major_version.opendht_minor_version.opendht_patch_version])
 
 AC_INIT(opendht, [opendht_version])
+AC_MSG_WARN([The Autotools build system for OpenDHT is deprecated and will be removed in a future release. Please use CMake or Meson instead.])
 AC_CONFIG_AUX_DIR(ac)
 AM_INIT_AUTOMAKE([foreign subdir-objects])
 AC_CONFIG_HEADERS([config.h])
@@ -18,18 +19,27 @@ 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="${CXXFLAGS} -O3 -Wno-deprecated -pedantic-errors -fvisibility=hidden"])
+
+CPPFLAGS="${CPPFLAGS} -DOPENDHT_BUILD"
+AM_CONDITIONAL([OPENDHT_SHARED], [test "x$enable_shared" != xno])
+AM_COND_IF(OPENDHT_SHARED, [
+  CPPFLAGS="${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$enable_logs" != "xno"], [
-	AC_DEFINE([OPENDHT_LOG], [true], [Define if DHT logs are enabled])
-], [
-	AC_DEFINE([OPENDHT_LOG], [false], [Define if DHT logs are enabled])
+dnl Check for C binding
+AC_ARG_ENABLE([c], [AS_HELP_STRING([--disable-c], [Disable DHT C binding])])
+AM_CONDITIONAL(ENABLE_C, test x$enable_c != "xno")
+AM_COND_IF(ENABLE_C, [
+	AC_DEFINE([OPENDHT_C], [], [Define if DHT C biding is enabled])
 ])
 
 dnl Check for indexation
@@ -47,21 +57,25 @@ dnl Check for Doxygen
 AC_ARG_ENABLE([doc], AS_HELP_STRING([--enable-doc], [Enable documentation generation (doxygen)]))
 AS_IF([test "x$enable_doc" = "xyes"], [
        AC_CHECK_PROGS([DOXYGEN], [doxygen])
-       AS_IF([test -z "$DOXYGEN"], [AC_MSG_WARN([Doxygen not found - continuing without Doxygen support])])
+       AS_IF([test -z "$DOXYGEN"],
+          [AC_MSG_ERROR([Doxygen is required to generate the documentation.])])
 ])
 AM_CONDITIONAL([HAVE_DOXYGEN], [test -n "$DOXYGEN"])
 
 dnl Check for Python
-AC_ARG_ENABLE([python], [AS_HELP_STRING([--disable-python], [Disble python binding])])
-AS_IF([test "x$enable_python" != "xno"], [
-       AM_PATH_PYTHON([3.3],, [:])
-       AS_IF([test -n "$PYTHON"],[
-              echo 'import Cython' | $PYTHON
-              AS_IF([test $? == 0],[CYTHON=yes],[AC_MSG_WARN([Cython not found - continuing without python support])])
-              AC_CHECK_PROGS([PIP], [pip3])
-              AS_IF([test -z "$PIP"],[AC_MSG_WARN([pip not found - continuing without python uninstall support])])
-              ])
-       ])
+AC_ARG_ENABLE([python], [AS_HELP_STRING([--disable-python], [Disable python binding])])
+AS_IF([test "x$enable_python" = "xyes"], [
+  AM_COND_IF([ENABLE_INDEXATION], [
+    AM_PATH_PYTHON([3.3],, [:])
+    AS_IF([test -n "$PYTHON"],[
+      echo 'import Cython' | $PYTHON
+      AS_IF([test $? == 0],
+        [CYTHON=yes],
+        [AC_MSG_ERROR([Cython not found, but required for Python support.])])
+      AC_CHECK_PROGS([PIP], [pip3])
+        AS_IF([test -z "$PIP"],
+        [AC_MSG_WARN([pip not found - continuing without python uninstall support])])])
+     ], [AC_MSG_ERROR([Python support requires DHT indexation to be turned on.])])])
 AM_CONDITIONAL([USE_CYTHON], [test -n "$CYTHON"])
 AM_CONDITIONAL([HAVE_PIP], [test -n "$PIP"])
 
@@ -74,6 +88,7 @@ case "${host_os}" in
     ;;
   linux*)
     SYS=linux
+    CPPFLAGS="$CPPFLAGS -D_POSIX_C_SOURCE=200809L"
     ;;
   darwin*)
     SYS=darwin
@@ -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])
 ])
 
@@ -131,22 +141,28 @@ 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-cxx >= 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$with_jsoncpp" != "xno"],
-      [PKG_CHECK_MODULES([JsonCpp], [jsoncpp >= 1.7.2], [have_jsoncpp=yes], [have_jsoncpp=no])],
+      [PKG_CHECK_MODULES([JsonCpp], [jsoncpp >= 1.7.2], [have_jsoncpp=yes], [have_jsoncpp=no])
+       PKG_CHECK_MODULES([simdutf], [simdutf >= 6], [have_simdutf=yes], [have_simdutf=no])],
       [have_jsoncpp=no])
 AS_IF([test "x$have_jsoncpp" = "xyes"], [
     AC_MSG_NOTICE([Using JsonCpp])
-    CPPFLAGS+=" -DOPENDHT_JSONCPP"
+    CPPFLAGS="${CPPFLAGS} -DOPENDHT_JSONCPP"
     AC_SUBST(jsoncpp_lib, [", jsoncpp"])
+    AC_SUBST(simdutf_lib, [", simdutf"])
 ], [
     AC_MSG_NOTICE([Not using JsonCpp])
     AM_COND_IF(PROXY_CLIENT_OR_SERVER, AC_MSG_ERROR(["JsonCpp is required for proxy/push notification support"]))
 ])
 
-AC_ARG_WITH([openssl], AS_HELP_STRING([--without-openssl], [Build with OpenSSL support]))
+AC_ARG_WITH([openssl], AS_HELP_STRING([--without-openssl], [Build without OpenSSL support]))
 AS_IF([test "x$with_openssl" != "xno"],
       [PKG_CHECK_MODULES([OpenSSL], [openssl >= 1.1], [have_openssl=yes], [have_openssl=no])],
       [have_openssl=no])
@@ -157,65 +173,43 @@ AS_IF([test "x$have_openssl" = "xyes"], [
     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$with_http_parser_fork" = "xyes"],[
-    AC_MSG_NOTICE([Using http_parser fork])
-    AC_DEFINE([OPENDHT_PROXY_HTTP_PARSER_FORK], [], [Define if using http parser fork])
+PKG_CHECK_MODULES([Fmt], [fmt >= 5.3.0], [have_fmt=yes], [have_fmt=no])
+AS_IF([test "x$have_fmt" = "xyes"], [
+    AC_MSG_NOTICE([Using libfmt])
 ], [
-    AC_MSG_NOTICE([Not using http_parser fork])
+    AC_MSG_NOTICE([Missing libfmt files])
 ])
 
 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"], [
-        AC_MSG_NOTICE([Using libfmt])
-    ], [
-        AC_MSG_NOTICE([Missing libfmt files])
-    ])
-    # 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]))
+    PKG_CHECK_MODULES([Llhttp], [libllhttp])
+    llhttp_lib=", libllhttp"
 ])
+AC_SUBST(llhttp_lib)
 
-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")
-		])
+AC_ARG_WITH([liburing], AS_HELP_STRING([--with-liburing], [Build with io_uring support(Linux only)]),[], [with_liburing=no])
+AS_IF([test "x$with_liburing" != "xno"], [
+    CXX_FLAGS="${CXXFLAGS} -DASIO_HAS_IO_URING -DASIO_DISABLE_EPOLL"
+    PKG_CHECK_MODULES([Liburing], [liburing])
+    iouring_lib=", liburing"
 ])
+AC_SUBST(iouring_lib)
 
-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)
 AM_COND_IF([ENABLE_TOOLS], [
-  AC_CHECK_HEADERS([readline/readline.h readline/history.h], [], [
-    AC_MSG_ERROR([unable to find readline.h])
+  AC_CHECK_HEADERS([readline/readline.h readline/history.h], [],
+    [AC_MSG_ERROR([Unable to find readline.h. Readline is required for the tools.])
   ])
 ])
 
 AM_COND_IF(ENABLE_PROXY_SERVER, AC_DEFINE([OPENDHT_PROXY_SERVER], [], [Building with proxy server]))
 AM_COND_IF(ENABLE_PROXY_CLIENT, AC_DEFINE([OPENDHT_PROXY_CLIENT], [], [Building with proxy client]))
-AM_COND_IF(ENABLE_PUSH_NOTIFICATIONS, [CPPFLAGS+=" -DOPENDHT_PUSH_NOTIFICATIONS"], [])
-AM_COND_IF(ENABLE_PROXY_SERVER_IDENTITY, [CPPFLAGS+=" -DOPENDHT_PROXY_SERVER_IDENTITY"], [])
+AM_COND_IF(ENABLE_PUSH_NOTIFICATIONS, [CPPFLAGS="${CPPFLAGS} -DOPENDHT_PUSH_NOTIFICATIONS"], [])
+AM_COND_IF(ENABLE_PROXY_SERVER_IDENTITY, [CPPFLAGS="${CPPFLAGS} -DOPENDHT_PROXY_SERVER_IDENTITY"], [])
 
 dnl Configure setup.py if we build the python module
 AC_SUBST(CURRENT_SOURCE_DIR, ".")
@@ -225,6 +219,7 @@ AC_SUBST(PROJECT_BINARY_DIR, "../src/.libs")
 
 AC_CONFIG_FILES([Makefile
                  src/Makefile
+                 c/Makefile
                  tools/Makefile
                  python/Makefile
                  python/setup.py
@@ -232,4 +227,5 @@ AC_CONFIG_FILES([Makefile
                  doc/Makefile
                  doc/Doxyfile
                  opendht.pc])
+AC_MSG_WARN([The Autotools build system for OpenDHT is deprecated and will be removed in a future release. Please use CMake or Meson instead.])
 AC_OUTPUT

doc/CMakeLists.txt

@@ -1,5 +1,5 @@
 if (OPENDHT_TOOLS)
-	INSTALL(FILES ${CMAKE_CURRENT_SOURCE_DIR}/dhtnode.1 DESTINATION ${CMAKE_INSTALL_PREFIX}/share/man/man1)
+	INSTALL(FILES ${CMAKE_CURRENT_SOURCE_DIR}/dhtnode.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
 endif ()
 
 if (OPENDHT_DOCUMENTATION)
@@ -12,5 +12,5 @@ if (OPENDHT_DOCUMENTATION)
                       WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
                       COMMENT "Generating API documentation with Doxygen"
                       VERBATIM)
-    install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html DESTINATION share/doc/opendht)
+    install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html DESTINATION ${CMAKE_INSTALL_DOCDIR}/opendht)
 endif()

doc/dhtnode.1

@@ -19,7 +19,7 @@
 .SH DESCRIPTION
 Runs an OpenDHT node, with a CLI (default) or as a daemon (with \fB'-d'\fP or \fB'-s'\fP).
 Commands available in the interactive shell are:
-.EE
+.EX
     h, help    Print this help message.
     q, quit    Quit the program.
     log        Start/stop printing DHT logs.
@@ -39,6 +39,7 @@ Commands available in the interactive shell are:
                           private key.
     e [key] [dest] [str]  Put string value at [key], encrypted for [dest] with
                           its public key (if found).
+.EE
 .SH OPTIONS
 .TP
 \fB\-h\fP

docker/Dockerfile

@@ -1,6 +1,18 @@
-FROM aberaud/opendht-deps
-MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
-RUN git clone https://github.com/savoirfairelinux/opendht.git \
-	&& cd opendht && mkdir build && cd build \
-	&& cmake .. -DCMAKE_INSTALL_PREFIX=/usr -DOPENDHT_PYTHON=On -DOPENDHT_LTO=On && make -j8 && make install \
+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
+
+COPY . opendht
+
+RUN 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/DockerfileAlpine

@@ -0,0 +1,37 @@
+FROM ghcr.io/savoirfairelinux/opendht/opendht-deps-alpine:latest AS build
+LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
+LABEL org.opencontainers.image.source=https://github.com/savoirfairelinux/opendht
+
+COPY . opendht
+
+RUN mkdir /install
+ENV DESTDIR=/install
+
+RUN 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
+
+FROM alpine:3.22 AS install
+COPY --from=build /install /
+RUN apk add --no-cache \
+        libstdc++ \
+        gnutls \
+        nettle \
+        openssl \
+        argon2-dev \
+        jsoncpp \
+        llhttp \
+        fmt \
+        readline \
+        ncurses
+CMD ["dhtnode", "-b", "bootstrap.jami.net", "-p", "4222", "--proxyserver", "8080"]
+EXPOSE 4222/udp
+EXPOSE 8080/tcp

docker/DockerfileAlpineEdge

@@ -0,0 +1,41 @@
+FROM opendht-alpine-edge-deps:latest AS build
+LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
+LABEL org.opencontainers.image.source=https://github.com/savoirfairelinux/opendht
+
+COPY . opendht
+
+RUN mkdir /install
+ENV DESTDIR=/install
+
+RUN cd opendht && mkdir build && cd build \
+	&& cmake .. -DCMAKE_INSTALL_PREFIX=/usr \
+                -DOPENDHT_DOWNLOAD_DEPS=Off \
+                -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+                -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
+
+FROM alpine:edge AS install
+COPY --from=build /install /
+RUN apk add --no-cache \
+        libstdc++ \
+        gnutls \
+        nettle \
+        openssl \
+        argon2-dev \
+        jsoncpp \
+        llhttp \
+        fmt \
+        readline \
+        ncurses \
+        gdb
+#CMD ["dhtnode", "-b", "bootstrap.jami.net", "-p", "4222", "--proxyserver", "8080"]
+EXPOSE 4222/udp
+EXPOSE 8080/tcp
+CMD ["/bin/sh"]

docker/DockerfileBionic

@@ -1,13 +0,0 @@
-FROM docker.pkg.github.com/savoirfairelinux/opendht/opendht-deps-bionic:2.0.0
-MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
-
-RUN git clone https://github.com/savoirfairelinux/opendht.git \
-	&& cd opendht && mkdir build && cd build \
-	&& cmake .. -DCMAKE_INSTALL_PREFIX=/usr \
-		-DOPENDHT_PROXY_CLIENT=On \
-		-DOPENDHT_PROXY_SERVER=On \
-		-DOPENDHT_C=On \
-		-DOPENDHT_PYTHON=On \
-		-DOPENDHT_LTO=On \
-		&& make -j8 && make install \
-	&& cd ../.. && rm -rf opendht

docker/DockerfileDeps

@@ -1,56 +1,32 @@
-FROM ubuntu:16.04
-MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+FROM ubuntu:24.04
+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*
+RUN apt-get update && apt-get install -y \
+        build-essential pkg-config cmake git wget meson \
+        libtool autotools-dev autoconf \
+        python3-dev python3-setuptools python3-build python3-virtualenv cython3 \
+        libncurses5-dev libreadline-dev nettle-dev libcppunit-dev \
+        libgnutls28-dev libuv1-dev libjsoncpp-dev libargon2-dev \
+        libssl-dev libfmt-dev libasio-dev libmsgpack-dev \
+    && apt-get clean && rm -rf /var/lib/apt/lists/* /var/cache/apt/*
 
-# libhttp-parser-dev is 2.1-2 which is too old
-RUN echo "*** Building nodejs/http_parser dependency ***" \
-    && wget https://github.com/nodejs/http-parser/archive/v2.9.2.tar.gz \
-    && tar xvf v2.9.2.tar.gz && cd http-parser-2.9.2/ \
-    && PREFIX=/usr make -j8 install \
-    && cd ../ && rm -rf http-parser*
-
-# libasio-dev (1.10.6-3) is too old
-RUN echo "** Building a recent version of asio ***" \
-    && wget https://github.com/aberaud/asio/archive/a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571.tar.gz \
-    && tar -xvf a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571.tar.gz && cd asio-a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571/asio \
-    && ./autogen.sh && ./configure --prefix=/usr --without-boost --disable-examples --disable-tests  \
-    && make install \
-    && cd ../../ && rm -rf asio*
+RUN mkdir /usr/include/nonstd \
+    && wget https://raw.githubusercontent.com/martinmoene/expected-lite/master/include/nonstd/expected.hpp \
+            -O /usr/include/nonstd/expected.hpp
 
 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 \
-    && 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 \
+    && wget https://github.com/Stiffstream/restinio/releases/download/v.0.7.3/restinio-0.7.3.tar.bz2 \
+    && ls -l && tar -xjf restinio-0.7.3.tar.bz2 \
+    && cd restinio-0.7.3/dev \
+    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=Off -DRESTINIO_SAMPLE=Off -DRESTINIO_BENCHMARK=Off \
+             -DRESTINIO_WITH_SOBJECTIZER=Off -DRESTINIO_DEP_STANDALONE_ASIO=system -DRESTINIO_DEP_LLHTTP=system \
+             -DRESTINIO_DEP_FMT=system -DRESTINIO_DEP_EXPECTED_LITE=system . \
+    && make -j2 && 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/DockerfileDepsAlpine

@@ -0,0 +1,27 @@
+FROM alpine:3.22
+LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
+LABEL org.opencontainers.image.source=https://github.com/savoirfairelinux/opendht
+
+RUN apk add --no-cache \
+        build-base cmake ninja git wget \
+        cython python3-dev py3-setuptools \
+        ncurses-dev readline-dev nettle-dev \
+        cppunit-dev gnutls-dev jsoncpp-dev \
+        argon2-dev openssl-dev fmt-dev \
+        llhttp-dev asio-dev msgpack-cxx-dev \
+    && rm -rf /var/cache/apk/*
+
+RUN mkdir /usr/include/nonstd \
+    && wget https://raw.githubusercontent.com/martinmoene/expected-lite/master/include/nonstd/expected.hpp \
+            -O /usr/include/nonstd/expected.hpp
+
+RUN echo "*** Downloading RESTinio ***" \
+    && mkdir restinio && cd restinio \
+    && wget https://github.com/Stiffstream/restinio/releases/download/v.0.7.3/restinio-0.7.3.tar.bz2 \
+    && ls -l && tar -xjf restinio-0.7.3.tar.bz2 \
+    && cd restinio-0.7.3/dev \
+    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=Off -DRESTINIO_SAMPLE=Off -DRESTINIO_BENCHMARK=Off \
+             -DRESTINIO_WITH_SOBJECTIZER=Off -DRESTINIO_DEP_STANDALONE_ASIO=system -DRESTINIO_DEP_LLHTTP=system \
+             -DRESTINIO_DEP_FMT=system -DRESTINIO_DEP_EXPECTED_LITE=system . \
+    && make -j2 && make install \
+    && cd ../../ && rm -rf restinio*

docker/DockerfileDepsAlpineEdge

@@ -0,0 +1,27 @@
+FROM alpine:edge
+LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
+LABEL org.opencontainers.image.source=https://github.com/savoirfairelinux/opendht
+
+RUN apk add --no-cache \
+        build-base cmake ninja git wget \
+        cython python3-dev py3-setuptools \
+        ncurses-dev readline-dev nettle-dev \
+        cppunit-dev gnutls-dev jsoncpp-dev \
+        argon2-dev openssl-dev fmt-dev \
+        llhttp-dev asio-dev msgpack-cxx-dev \
+    && rm -rf /var/cache/apk/*
+
+RUN mkdir /usr/include/nonstd \
+    && wget https://raw.githubusercontent.com/martinmoene/expected-lite/master/include/nonstd/expected.hpp \
+            -O /usr/include/nonstd/expected.hpp
+
+RUN echo "*** Downloading RESTinio ***" \
+    && mkdir restinio && cd restinio \
+    && wget https://github.com/Stiffstream/restinio/releases/download/v.0.7.3/restinio-0.7.3.tar.bz2 \
+    && ls -l && tar -xjf restinio-0.7.3.tar.bz2 \
+    && cd restinio-0.7.3/dev \
+    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=Off -DRESTINIO_SAMPLE=Off -DRESTINIO_BENCHMARK=Off \
+             -DRESTINIO_WITH_SOBJECTIZER=Off -DRESTINIO_DEP_STANDALONE_ASIO=system -DRESTINIO_DEP_LLHTTP=system \
+             -DRESTINIO_DEP_FMT=system -DRESTINIO_DEP_EXPECTED_LITE=system . \
+    && make -j2 && make install \
+    && cd ../../ && rm -rf restinio*

docker/DockerfileDepsBionic

@@ -1,28 +0,0 @@
-FROM ubuntu:18.04
-MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
-
-RUN echo "APT::Acquire::Retries \"3\";" > /etc/apt/apt.conf.d/80-retries
-RUN apt-get update && apt-get install -y \
-        apt-transport-https build-essential cmake git wget libncurses5-dev libreadline-dev nettle-dev \
-        libgnutls28-dev libuv1-dev cython3 python3-dev python3-setuptools libcppunit-dev libjsoncpp-dev \
-        autotools-dev autoconf libfmt-dev libhttp-parser-dev libmsgpack-dev libssl-dev \
-    && apt-get clean
-
-# libasio-dev (1.10) is too old
-RUN echo "** Building a recent version of asio ***" \
-    && wget https://github.com/aberaud/asio/archive/a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571.tar.gz \
-    && tar -xvf a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571.tar.gz && cd asio-a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571/asio \
-    && ./autogen.sh && ./configure --prefix=/usr --without-boost --disable-examples --disable-tests  \
-    && make install \
-    && cd ../../ && rm -rf asio*
-
-RUN echo "*** Downloading RESTinio ***" \
-    && mkdir restinio && cd restinio \
-    && wget https://github.com/aberaud/restinio/archive/8d5d3e8237e0947adb9ba1ffc8281f4ad7cb2a59.tar.gz \
-    && ls -l && tar -xzf 8d5d3e8237e0947adb9ba1ffc8281f4ad7cb2a59.tar.gz \
-    && cd restinio-8d5d3e8237e0947adb9ba1ffc8281f4ad7cb2a59/dev \
-    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=OFF -DRESTINIO_SAMPLE=OFF \
-             -DRESTINIO_INSTALL_SAMPLES=OFF -DRESTINIO_BENCH=OFF -DRESTINIO_INSTALL_BENCHES=OFF \
-             -DRESTINIO_FIND_DEPS=ON -DRESTINIO_ALLOW_SOBJECTIZER=Off -DRESTINIO_USE_BOOST_ASIO=none . \
-    && make -j8 && make install \
-    && cd ../../ && rm -rf restinio*

docker/DockerfileDepsFocal

@@ -0,0 +1,34 @@
+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 \
+        python3-dev python3-setuptools python3-pip \
+        libncurses5-dev libreadline-dev nettle-dev libcppunit-dev \
+        libgnutls28-dev libuv1-dev libjsoncpp-dev libargon2-dev \
+        libssl-dev libfmt-dev libasio-dev libmsgpack-dev \
+    && apt-get clean && rm -rf /var/lib/apt/lists/* /var/cache/apt/*
+
+RUN pip3 install meson Cython
+
+RUN mkdir /usr/include/nonstd \
+    && wget https://raw.githubusercontent.com/martinmoene/expected-lite/master/include/nonstd/expected.hpp \
+            -O /usr/include/nonstd/expected.hpp
+
+RUN echo "*** Downloading RESTinio ***" \
+    && mkdir restinio && cd restinio \
+    && wget https://github.com/Stiffstream/restinio/releases/download/v.0.7.3/restinio-0.7.3.tar.bz2 \
+    && ls -l && tar -xjf restinio-0.7.3.tar.bz2 \
+    && cd restinio-0.7.3/dev \
+    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=Off -DRESTINIO_SAMPLE=Off -DRESTINIO_BENCHMARK=Off \
+             -DRESTINIO_WITH_SOBJECTIZER=Off -DRESTINIO_DEP_STANDALONE_ASIO=system -DRESTINIO_DEP_LLHTTP=system \
+             -DRESTINIO_DEP_FMT=system -DRESTINIO_DEP_EXPECTED_LITE=system . \
+    && make -j2 && make install \
+    && cd ../../ && rm -rf restinio*

docker/DockerfileDepsLlvm

@@ -1,62 +1,38 @@
-FROM ubuntu:16.04
-MAINTAINER Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+FROM ubuntu:24.04
+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 \
-       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
+    && apt-get install -y llvm llvm-dev lldb clang gdb make cmake meson pkg-config \
+       libtool git wget libncurses5-dev libreadline-dev \
+       nettle-dev libgnutls28-dev libuv1-dev libmsgpack-dev libjsoncpp-dev python3-dev \
+       python3-setuptools libcppunit-dev python3-pip python3-build python3-virtualenv \
+       autotools-dev autoconf libssl-dev libargon2-dev \
+       libfmt-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 pip3 install Cython --break-system-packages
 
-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*
+ENV CC=cc
+ENV CXX=c++
 
-# libhttp-parser-dev is 2.1-2 which is too old
-RUN echo "*** Building nodejs/http_parser dependency ***" \
-    && wget https://github.com/nodejs/http-parser/archive/v2.9.2.tar.gz \
-    && tar xvf v2.9.2.tar.gz && cd http-parser-2.9.2/ \
-    && PREFIX=/usr make -j8 install \
-    && cd ../ && rm -rf http-parser*
-
-# libasio-dev (1.10.6-3) is too old
-RUN echo "** Building a recent version of asio ***" \
-    && wget https://github.com/aberaud/asio/archive/a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571.tar.gz \
-    && tar -xvf a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571.tar.gz && cd asio-a7d66ef4017d8f1b7f2cef1bb4ba8e23b0961571/asio \
-    && ./autogen.sh && ./configure --prefix=/usr --without-boost --disable-examples --disable-tests  \
-    && make install \
-    && cd ../../ && rm -rf asio*
-
-#patch for https://github.com/Stiffstream/restinio-conan-example/issues/2
-RUN apt-get update && apt-get install -y python3-pip && pip3 install --upgrade cmake
+RUN mkdir /usr/include/nonstd \
+    && wget https://raw.githubusercontent.com/martinmoene/expected-lite/master/include/nonstd/expected.hpp \
+            -O /usr/include/nonstd/expected.hpp
 
 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 \
-    && 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 \
+    && wget https://github.com/Stiffstream/restinio/releases/download/v.0.7.3/restinio-0.7.3.tar.bz2 \
+    && ls -l && tar -xjf restinio-0.7.3.tar.bz2 \
+    && cd restinio-0.7.3/dev \
+    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=Off -DRESTINIO_SAMPLE=Off -DRESTINIO_BENCHMARK=Off \
+             -DRESTINIO_WITH_SOBJECTIZER=Off -DRESTINIO_DEP_STANDALONE_ASIO=system -DRESTINIO_DEP_LLHTTP=system \
+             -DRESTINIO_DEP_FMT=system -DRESTINIO_DEP_EXPECTED_LITE=system . \
+    && make -j2 && 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 +1,17 @@
+FROM ghcr.io/savoirfairelinux/opendht/opendht-deps-focal:latest
+LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
+LABEL org.opencontainers.image.source=https://github.com/savoirfairelinux/opendht
+
+COPY . opendht
+
+RUN 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 +1,18 @@
+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
+
+COPY . opendht
+
+RUN 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_C=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_C=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) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 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) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
@@ -82,6 +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
     /**
@@ -130,12 +134,18 @@ struct OPENDHT_PUBLIC Config {
     /* 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};
+
+    /* Client mode, node will not be used by other nodes to store data. */
+    bool client_mode {false};
 };
 
 /**
@@ -146,13 +156,27 @@ 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};
 };
 
+enum class OPENDHT_PUBLIC PushNotificationResult: uint8_t {
+    /* success codes */
+    PutRefresh,
+    ListenRefresh,
+    Values,
+    ValuesExpired,
+    /* ignored/error codes */
+    IgnoredWrongSession = 0x80,
+    IgnoredNoOp,
+    IgnoredStopped,
+    IgnoredDisabled,
+    Error
+};
+
 static constexpr size_t DEFAULT_STORAGE_LIMIT {1024 * 1024 * 64};
 
 using ValuesExport = std::pair<InfoHash, Blob>;
@@ -162,27 +186,30 @@ 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 PublicAddressChangedCb = std::function<void(std::vector<SockAddr>)>;
 
-using CertificateStoreQuery = std::function<std::vector<std::shared_ptr<crypto::Certificate>>(const InfoHash& pk_id)>;
+using CertificateStoreQueryLegacy = std::function<std::vector<std::shared_ptr<crypto::Certificate>>(const InfoHash& pk_id)>;
+using CertificateStoreQuery = std::function<std::vector<std::shared_ptr<crypto::Certificate>>(const PkId& pk_id)>;
+
+using DoneCallback = std::function<void(bool success, const std::vector<std::shared_ptr<Node>>& nodes)>;
+using DoneCallbackSimple = std::function<void(bool success)>;
 
 typedef bool (*GetCallbackRaw)(std::shared_ptr<Value>, void *user_data);
 typedef bool (*ValueCallbackRaw)(std::shared_ptr<Value>, bool expired, void *user_data);
-
-using DoneCallback = std::function<void(bool success, const std::vector<std::shared_ptr<Node>>& nodes)>;
 typedef void (*DoneCallbackRaw)(bool, std::vector<std::shared_ptr<Node>>*, void *user_data);
 typedef void (*ShutdownCallbackRaw)(void *user_data);
 typedef void (*DoneCallbackSimpleRaw)(bool, void *user_data);
 typedef bool (*FilterRaw)(const Value&, void *user_data);
 
-using DoneCallbackSimple = std::function<void(bool success)>;
 
-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) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 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>
@@ -78,14 +83,17 @@ 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; }
     bool operator ==(const PublicKey& o) const {
-        return pk == o.pk || getId() == o.getId();
+        return pk == o.pk || getLongId() == o.getLongId();
     }
     bool operator !=(const PublicKey& o) const {
         return !(*this == o);
@@ -96,23 +104,25 @@ 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);
@@ -134,6 +144,11 @@ struct OPENDHT_PUBLIC PublicKey
 
     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;
@@ -156,11 +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;
 
@@ -168,22 +187,26 @@ 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
      * @param key_length : size of the modulus in bits
      *      Minimim value: 2048
      *      Recommended values: 4096, 8192
+     * @param algo : the public key algorithm to use, GNUTLS_PK_RSA or GNUTLS_PK_RSA_OAEP
      */
-    static PrivateKey generate(unsigned key_length = 4096);
+    static PrivateKey generate(unsigned key_length = 4096, gnutls_pk_algorithm_t algo = GNUTLS_PK_RSA);
     static PrivateKey generateEC();
 
     gnutls_privkey_t key {};
@@ -193,10 +216,10 @@ 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;
@@ -279,6 +302,7 @@ 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)) {
@@ -309,6 +333,56 @@ 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 {}
 
@@ -317,19 +391,21 @@ struct OPENDHT_PUBLIC Certificate {
      */
     Certificate(gnutls_x509_crt_t crt) noexcept : cert(crt) {}
 
-    Certificate(Certificate&& o) noexcept : cert(o.cert), issuer(std::move(o.issuer)) { o.cert = nullptr; };
+    Certificate(Certificate&& o) noexcept
+        : cert(o.cert)
+        , issuer(std::move(o.issuer))
+        , publicKey_(std::move(o.publicKey_))
+        { o.cert = nullptr; };
 
     /**
      * Import certificate (PEM or DER) or certificate chain (PEM),
      * 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),
@@ -427,12 +503,18 @@ struct OPENDHT_PUBLIC Certificate {
     void msgpack_unpack(const msgpack::object& o);
 
     explicit operator bool() const { return cert; }
-    PublicKey getPublicKey() const;
+    const PublicKey& getPublicKey() const;
+    const std::shared_ptr<PublicKey>& getSharedPublicKey() 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 full DN as described in RFC4514 */ 
+    std::string getDN() const;
 
     /** Read certificate Common Name (CN) */
     std::string getName() const;
@@ -440,6 +522,9 @@ struct OPENDHT_PUBLIC Certificate {
     /** Read certificate User ID (UID) */
     std::string getUID() const;
 
+    /** Read certificate issuer DN as described in RFC4514 */
+    std::string getIssuerDN() const;
+
     /** Read certificate issuer Common Name (CN) */
     std::string getIssuerName() const;
 
@@ -483,8 +568,8 @@ 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)
@@ -527,11 +612,29 @@ 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 {
@@ -540,6 +643,9 @@ private:
     };
 
     std::set<std::shared_ptr<RevocationList>, crlNumberCmp> revocation_lists;
+
+    mutable std::mutex publicKeyMutex_ {};
+    mutable std::shared_ptr<PublicKey> publicKey_ {};
 };
 
 struct OPENDHT_PUBLIC TrustList
@@ -550,7 +656,7 @@ struct OPENDHT_PUBLIC TrustList
         bool hasError() const { return ret < 0; }
         bool isValid() const { return !hasError() and !(result & GNUTLS_CERT_INVALID); }
         explicit operator bool() const { return isValid(); }
-        std::string toString() const;
+        OPENDHT_PUBLIC std::string toString() const;
         OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const VerifyResult& h);
     };
 
@@ -571,94 +677,6 @@ private:
     gnutls_x509_trust_list_t trust {nullptr};
 };
 
-template <class T>
-class OPENDHT_PUBLIC secure_vector
-{
-public:
-    secure_vector() {}
-    secure_vector(secure_vector<T> const&) = default;
-    secure_vector(secure_vector<T> &&) = default;
-    explicit secure_vector(unsigned size): data_(size) {}
-    explicit secure_vector(unsigned size, T _item): data_(size, _item) {}
-    explicit secure_vector(const std::vector<T>& c): data_(c) {}
-    secure_vector(std::vector<T>&& c): data_(std::move(c)) {}
-    ~secure_vector() { clean(); }
-
-    static secure_vector<T> getRandom(size_t size) {
-        secure_vector<T> ret(size);
-        crypto::random_device rdev;
-#ifdef _WIN32
-        std::uniform_int_distribution<int> rand_byte{ 0, std::numeric_limits<uint8_t>::max() };
-#else
-        std::uniform_int_distribution<uint8_t> rand_byte;
-#endif
-        std::generate_n((uint8_t*)ret.data_.data(), ret.size()*sizeof(T), std::bind(rand_byte, std::ref(rdev)));
-        return ret;
-    }
-    secure_vector<T>& operator=(const secure_vector<T>& c) {
-        if (&c == this)
-            return *this;
-        clean();
-        data_ = c.data_;
-        return *this;
-    }
-    secure_vector<T>& operator=(secure_vector<T>&& c) {
-        if (&c == this)
-            return *this;
-        clean();
-        data_ = std::move(c.data_);
-        return *this;
-    }
-    secure_vector<T>& operator=(std::vector<T>&& c) {
-        clean();
-        data_ = std::move(c);
-        return *this;
-    }
-    std::vector<T>& writable() { clean(); return data_; }
-    const std::vector<T>& makeInsecure() const { return data_; }
-    const uint8_t* data() const { return data_.data(); }
-
-    void clean() {
-        clean(data_.begin(), data_.end());
-    }
-
-    void clear() { clean(); data_.clear(); }
-
-    size_t size() const { return data_.size(); }
-    bool empty() const { return data_.empty(); }
-
-    void swap(secure_vector<T>& other) { data_.swap(other.data_); }
-    void resize(size_t s) {
-        if (s == data_.size()) return;
-        if (s < data_.size()) {
-            //shrink
-            clean(data_.begin()+s, data_.end());
-            data_.resize(s);
-        } else {
-            //grow
-            auto data = std::move(data_); // move protected data
-            clear();
-            data_.resize(s);
-            std::copy(data.begin(), data.end(), data_.begin());
-            clean(data.begin(), data.end());
-        }
-    }
-
-private:
-    /**
-     * Securely wipe memory
-     */
-    static void clean(const typename std::vector<T>::iterator& i, const typename std::vector<T>::iterator& j) {
-        volatile uint8_t* b = reinterpret_cast<uint8_t*>(&*i);
-        volatile uint8_t* e = reinterpret_cast<uint8_t*>(&*j);
-        std::fill(b, e, 0);
-    }
-
-    std::vector<T> data_;
-};
-
-using SecureBlob = secure_vector<uint8_t>;
-
 /**
  * Generate an RSA key pair (4096 bits) and a certificate.
  * @param name the name used in the generated certificate
@@ -673,6 +691,7 @@ OPENDHT_PUBLIC Identity generateEcIdentity(const std::string& name, const Identi
 OPENDHT_PUBLIC Identity generateEcIdentity(const std::string& name = "dhtnode", const Identity& ca = {});
 
 OPENDHT_PUBLIC void saveIdentity(const Identity& id, const std::string& path, const std::string& privkey_password = {});
+OPENDHT_PUBLIC Identity loadIdentity(const std::string &path,const std::string &privkey_password = {});
 
 /**
  * Performs SHA512, SHA256 or SHA1, depending on hash_length.
@@ -693,7 +712,7 @@ OPENDHT_PUBLIC void hash(const uint8_t* data, size_t data_length, uint8_t* hash,
  * that can be transmitted in clear, and will be generated if
  * not provided (32 bytes).
  */
-OPENDHT_PUBLIC Blob stretchKey(const std::string& password, Blob& salt, size_t key_length = 512/8);
+OPENDHT_PUBLIC Blob stretchKey(std::string_view password, Blob& salt, size_t key_length = 512/8);
 
 /**
  * AES-GCM encryption. Key must be 128, 192 or 256 bits long (16, 24 or 32 bytes).
@@ -702,13 +721,58 @@ OPENDHT_PUBLIC Blob aesEncrypt(const uint8_t* data, size_t data_length, const Bl
 OPENDHT_PUBLIC inline Blob aesEncrypt(const Blob& data, const Blob& key) {
     return aesEncrypt(data.data(), data.size(), key);
 }
-OPENDHT_PUBLIC Blob aesEncrypt(const Blob& data, const std::string& password);
+/**
+ * AES-GCM encryption with argon2 key derivation.
+ * This function uses `stretchKey` to generate an AES key from the password and a random salt.
+ * The result is a bundle including the salt that can be decrypted with `aesDecrypt(data, password)`.
+ * If needed, the salt or encrypted data can be individually extracted from the bundle with `aesGetSalt` and `aesGetEncrypted`.
+ * @param data: data to encrypt
+ * @param password: password to encrypt the data with
+ * @param salt: optional salt to use for key derivation. If not provided, a random salt will be generated.
+ */
+OPENDHT_PUBLIC Blob aesEncrypt(const Blob& data, std::string_view password, const Blob& salt = {});
 
 /**
  * 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 inline Blob aesDecrypt(std::string_view data, const Blob& key) { return aesDecrypt((uint8_t*)data.data(), data.size(), key); }
+
+OPENDHT_PUBLIC Blob aesDecrypt(const uint8_t* data, size_t data_length, std::string_view password);
+OPENDHT_PUBLIC inline Blob aesDecrypt(const Blob& data, std::string_view password) { return aesDecrypt(data.data(), data.size(), password); }
+OPENDHT_PUBLIC inline Blob aesDecrypt(std::string_view data, std::string_view password) { return aesDecrypt((uint8_t*)data.data(), data.size(), password); }
+
+/**
+ * Get raw AES key from password and salt stored with the encrypted data.
+ */
+OPENDHT_PUBLIC Blob aesGetKey(const uint8_t* data, size_t data_length, std::string_view password);
+OPENDHT_PUBLIC Blob inline aesGetKey(const Blob& data, std::string_view password) {
+    return aesGetKey(data.data(), data.size(), password);
+}
+/** Get the salt part of data password-encrypted with `aesEncrypt(data, password)` */
+OPENDHT_PUBLIC Blob aesGetSalt(const uint8_t* data, size_t data_length);
+OPENDHT_PUBLIC Blob inline aesGetSalt(const Blob& data) {
+    return aesGetSalt(data.data(), data.size());
+}
+/** Get the encrypted data (ciphertext) part of data password-encrypted with `aesEncrypt(data, password)` */
+OPENDHT_PUBLIC std::string_view aesGetEncrypted(const uint8_t* data, size_t data_length);
+OPENDHT_PUBLIC std::string_view inline aesGetEncrypted(const Blob& data) {
+    return aesGetEncrypted(data.data(), data.size());
+}
+
+/** Build an encrypted bundle that can be decrypted with aesDecrypt(data, password).
+ *  @param encryptedData: result of `aesEncrypt(data, key)` or `aesGetEncrypted`
+ *  @param salt: should match the encryption key and password so that `stretchKey(password, salk) == key`.
+ *  Can be obtained from an existing bundle with `aesGetSalt`.
+ **/
+OPENDHT_PUBLIC Blob aesBuildEncrypted(const uint8_t* encryptedData, size_t data_length, const Blob& salt);
+OPENDHT_PUBLIC Blob inline aesBuildEncrypted(const Blob& encryptedData, const Blob& salt) {
+    return aesBuildEncrypted(encryptedData.data(), encryptedData.size(), salt);
+}
+OPENDHT_PUBLIC Blob inline aesBuildEncrypted(std::string_view encryptedData, const Blob& salt) {
+    return aesBuildEncrypted((const uint8_t*)encryptedData.data(), encryptedData.size(), salt);
+}
 
 }
 }

include/opendht/crypto/secure_vector.h

@@ -0,0 +1,114 @@
+/*
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include <vector>
+#include <random>
+
+namespace dht {
+namespace crypto {
+
+template <class T>
+class secure_vector
+{
+public:
+    secure_vector() {}
+    secure_vector(secure_vector<T> const&) = default;
+    secure_vector(secure_vector<T> &&) = default;
+    explicit secure_vector(unsigned size): data_(size) {}
+    explicit secure_vector(unsigned size, T _item): data_(size, _item) {}
+    explicit secure_vector(const std::vector<T>& c): data_(c) {}
+    secure_vector(std::vector<T>&& c): data_(std::move(c)) {}
+    ~secure_vector() { clean(); }
+
+    static secure_vector<T> getRandom(size_t size) {
+        secure_vector<T> ret(size);
+        std::random_device rdev;
+#ifdef _WIN32
+        std::uniform_int_distribution<int> rand_byte{ 0, std::numeric_limits<uint8_t>::max() };
+#else
+        std::uniform_int_distribution<uint8_t> rand_byte;
+#endif
+        std::generate_n((uint8_t*)ret.data_.data(), ret.size()*sizeof(T), std::bind(rand_byte, std::ref(rdev)));
+        return ret;
+    }
+    secure_vector<T>& operator=(const secure_vector<T>& c) {
+        if (&c == this)
+            return *this;
+        clean();
+        data_ = c.data_;
+        return *this;
+    }
+    secure_vector<T>& operator=(secure_vector<T>&& c) {
+        if (&c == this)
+            return *this;
+        clean();
+        data_ = std::move(c.data_);
+        return *this;
+    }
+    secure_vector<T>& operator=(std::vector<T>&& c) {
+        clean();
+        data_ = std::move(c);
+        return *this;
+    }
+    std::vector<T>& writable() { clean(); return data_; }
+    const std::vector<T>& makeInsecure() const { return data_; }
+    const uint8_t* data() const { return data_.data(); }
+
+    void clean() {
+        clean(data_.begin(), data_.end());
+    }
+
+    void clear() { clean(); data_.clear(); }
+
+    size_t size() const { return data_.size(); }
+    bool empty() const { return data_.empty(); }
+
+    void swap(secure_vector<T>& other) { data_.swap(other.data_); }
+    void resize(size_t s) {
+        if (s == data_.size()) return;
+        if (s < data_.size()) {
+            //shrink
+            clean(data_.begin()+s, data_.end());
+            data_.resize(s);
+        } else {
+            //grow
+            auto data = std::move(data_); // move protected data
+            clear();
+            data_.resize(s);
+            std::copy(data.begin(), data.end(), data_.begin());
+            clean(data.begin(), data.end());
+        }
+    }
+
+private:
+    /**
+     * Securely wipe memory
+     */
+    static void clean(const typename std::vector<T>::iterator& i, const typename std::vector<T>::iterator& j) {
+        volatile uint8_t* b = reinterpret_cast<uint8_t*>(&*i);
+        volatile uint8_t* e = reinterpret_cast<uint8_t*>(&*j);
+        std::fill(b, e, 0);
+    }
+
+    std::vector<T> data_;
+};
+
+using SecureBlob = secure_vector<uint8_t>;
+
+}
+}

include/opendht/default_types.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -59,15 +59,17 @@ public:
 };
 
 template <typename T>
-class OPENDHT_PUBLIC SignedValue : public Value::Serializable<T>
+class SignedValue : public Value::Serializable<T>
 {
 private:
     using BaseClass = Value::Serializable<T>;
 
 public:
     virtual void unpackValue(const Value& v) override {
-        if (v.owner)
+        if (v.owner) {
+            owner = v.owner;
             from = v.owner->getId();
+        }
         BaseClass::unpackValue(v);
     }
 
@@ -75,11 +77,12 @@ public:
         return [](const Value& v){ return v.isSigned(); };
     }
 
+    Sp<crypto::PublicKey> owner;
     dht::InfoHash from;
 };
 
 template <typename T>
-class OPENDHT_PUBLIC EncryptedValue : public SignedValue<T>
+class EncryptedValue : public SignedValue<T>
 {
 public:
     using BaseClass = SignedValue<T>;
@@ -124,6 +127,10 @@ public:
         SignedValue::unpackValue(v);
     }
 
+    static Value::Filter getFilter() {
+        return SignedValue::getFilter();
+    }
+
     dht::InfoHash to;
     dht::Value::Id id {0};
     std::string msg;
@@ -144,17 +151,18 @@ 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>

include/opendht/dht.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
@@ -61,17 +61,11 @@ 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 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)) {}
+    Dht(std::unique_ptr<net::DatagramSocket>&& sock, const Config& config, const Sp<Logger>& l = {}, std::unique_ptr<std::mt19937_64>&& rd = {});
 
     virtual ~Dht();
 
@@ -79,6 +73,9 @@ public:
      * Get the ID of the node.
      */
     inline const InfoHash& getNodeId() const override { return myid; }
+    void setOnPublicAddressChanged(PublicAddressChangedCb cb) override {
+        publicAddressChangedCb_ = std::move(cb);
+    }
 
     NodeStatus updateStatus(sa_family_t af) override;
 
@@ -98,7 +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).
@@ -117,7 +114,7 @@ public:
 
     void addBootstrap(const std::string& host, const std::string& service) override {
         bootstrap_nodes.emplace_back(host, service);
-        onDisconnected();
+        startBootstrap();
     }
 
     void clearBootstrap() override {
@@ -131,7 +128,7 @@ public:
      */
     void insertNode(const InfoHash& id, const SockAddr&) override;
     void insertNode(const NodeExport& n) override {
-        insertNode(n.id, SockAddr(n.ss, n.sslen));
+        insertNode(n.id, n.addr);
     }
 
     void pingNode(SockAddr, DoneCallbackSimple&& cb={}) override;
@@ -268,7 +265,6 @@ public:
      */
     void connectivityChanged(sa_family_t) override;
     void connectivityChanged() override {
-        reported_addr.clear();
         connectivityChanged(AF_INET);
         connectivityChanged(AF_INET6);
     }
@@ -305,6 +301,9 @@ 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
@@ -316,7 +315,9 @@ public:
 
     std::vector<SockAddr> getPublicAddress(sa_family_t family = 0) override;
 
-    void pushNotificationReceived(const std::map<std::string, std::string>&) override {}
+    PushNotificationResult pushNotificationReceived(const std::map<std::string, std::string>&) override {
+        return PushNotificationResult::IgnoredDisabled;
+    }
     void resubscribe(unsigned) {}
 
 private:
@@ -343,7 +344,7 @@ private:
     static constexpr unsigned LISTEN_NODES {4};
 
     /* The maximum number of hashes we're willing to track. */
-    static constexpr unsigned MAX_HASHES {1024 * 1024};
+    static constexpr unsigned MAX_HASHES {1024 * 1024 * 1024};
 
     /* The maximum number of searches we keep data about. */
     static constexpr unsigned MAX_SEARCHES {1024 * 1024};
@@ -359,6 +360,8 @@ private:
 
     static constexpr duration REANNOUNCE_MARGIN {std::chrono::seconds(10)};
 
+    static constexpr std::chrono::seconds BOOTSTRAP_PERIOD {10};
+
     static constexpr size_t TOKEN_SIZE {32};
 
     // internal structures
@@ -371,6 +374,8 @@ private:
     Dht(const Dht&) = delete;
     Dht& operator=(const Dht&) = delete;
 
+    std::mt19937_64 rd;
+
     InfoHash myid {};
 
     uint64_t secret {};
@@ -380,11 +385,14 @@ private:
     TypeStore types;
 
     using SearchMap = std::map<InfoHash, Sp<Search>>;
+    using ReportedAddr = std::pair<unsigned, SockAddr>;
+
     struct Kad {
         RoutingTable buckets {};
         SearchMap searches {};
         unsigned pending_pings {0};
         NodeStatus status;
+        std::vector<ReportedAddr> reported_addr;
 
         NodeStatus getStatus(time_point now) const;
         NodeStats getNodesStats(time_point now, const InfoHash& myid) const;
@@ -392,9 +400,10 @@ private:
 
     Kad dht4 {};
     Kad dht6 {};
+    PublicAddressChangedCb publicAddressChangedCb_ {};
 
     std::vector<std::pair<std::string,std::string>> bootstrap_nodes {};
-    std::chrono::steady_clock::duration bootstrap_period {std::chrono::seconds(10)};
+    std::chrono::steady_clock::duration bootstrap_period {BOOTSTRAP_PERIOD};
     Sp<Scheduler::Job> bootstrapJob {};
 
     std::map<InfoHash, Storage> store;
@@ -412,7 +421,6 @@ private:
     std::map<size_t, std::tuple<size_t, size_t, size_t>> listeners {};
     size_t listener_token {1};
 
-    std::mt19937_64 rd {crypto::getSeededRandomEngine<std::mt19937_64>()};
 
     // timing
     Scheduler scheduler;
@@ -420,8 +428,6 @@ private:
     Sp<Scheduler::Job> nextStorageMaintenance {};
 
     net::NetworkEngine network_engine;
-    using ReportedAddr = std::pair<unsigned, SockAddr>;
-    std::vector<ReportedAddr> reported_addr;
 
     std::string persistPath;
 
@@ -445,15 +451,15 @@ 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;
 
     /**
@@ -482,6 +488,9 @@ 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);
@@ -489,7 +498,6 @@ private:
     bool trySearchInsert(const Sp<Node>& node);
 
     // Searches
-
     inline SearchMap& searches(sa_family_t af) { return dht(af).searches; }
     inline const SearchMap& searches(sa_family_t af) const { return dht(af).searches; }
 
@@ -514,6 +522,8 @@ private:
 
     void confirmNodes();
     void expire();
+
+    void onConnected();
     void onDisconnected();
 
     /**
@@ -560,7 +570,7 @@ private:
      * @param sr  The search for which we want to announce a value.
      * @param announce  The 'announce' structure.
      */
-    void searchSendAnnounceValue(const Sp<Search>& sr);
+    void searchSendAnnounceValue(const Sp<Search>& sr, unsigned syncLevel = TARGET_NODES);
 
     /**
      * Main process of a Search's operations. This function will demand the
@@ -569,7 +579,8 @@ 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;
@@ -600,7 +611,8 @@ 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) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -19,7 +19,10 @@
 #pragma once
 
 #include "infohash.h"
-#include "log_enable.h"
+#include "logger.h"
+#include "node_export.h"
+
+#include <queue>
 
 namespace dht {
 
@@ -30,8 +33,8 @@ namespace net {
 class OPENDHT_PUBLIC DhtInterface {
 public:
     DhtInterface() = default;
-    DhtInterface(const Logger& l) : logger_(std::make_shared<Logger>(l)) {};
-    DhtInterface(const std::shared_ptr<Logger>& l) : logger_(l) {};
+    DhtInterface(const Logger& l) : logger_(std::make_shared<Logger>(l)) {}
+    DhtInterface(const std::shared_ptr<Logger>& l) : logger_(l) {}
     virtual ~DhtInterface() = default;
 
     // [[deprecated]]
@@ -42,11 +45,16 @@ public:
     /**
      * Get the current status of the node for the given family.
      */
-    virtual NodeStatus updateStatus(sa_family_t af) { return getStatus(af); };
+    virtual NodeStatus updateStatus(sa_family_t af) { return getStatus(af); }
     virtual NodeStatus getStatus(sa_family_t af) const = 0;
     virtual NodeStatus getStatus() const = 0;
 
-    virtual net::DatagramSocket* getSocket() const { return {}; };
+    void addOnConnectedCallback(std::function<void()> cb) {
+        onConnectCallbacks_.emplace(std::move(cb));
+    }
+    virtual void setOnPublicAddressChanged(PublicAddressChangedCb) {}
+
+    virtual net::DatagramSocket* getSocket() const { return {}; }
 
     /**
      * Get the ID of the DHT node.
@@ -55,8 +63,10 @@ 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).
@@ -213,6 +223,7 @@ 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
@@ -222,18 +233,6 @@ public:
 
     virtual std::vector<SockAddr> getPublicAddress(sa_family_t family = 0) = 0;
 
-    /**
-     * Enable or disable logging of DHT internal messages
-     */
-    virtual void setLoggers(LogMethod error = {}, LogMethod warn = {}, LogMethod debug = {}) {
-        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) {
         if (logger_)
             *logger_ = l;
@@ -256,14 +255,18 @@ public:
 
     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
      */
-    virtual void pushNotificationReceived(const std::map<std::string, std::string>& data) = 0;
+    virtual PushNotificationResult pushNotificationReceived(const std::map<std::string, std::string>& data) = 0;
 
 protected:
     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) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *          Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *          Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
@@ -53,17 +53,35 @@ public:
     DhtProxyClient();
 
     explicit DhtProxyClient(
-        std::shared_ptr<crypto::Certificate> serverCA, crypto::Identity clientIdentity,
-        std::function<void()> loopSignal, const std::string& serverHost,
-        const std::string& pushClientId = "", std::shared_ptr<Logger> logger = {});
+        std::shared_ptr<crypto::Certificate> serverCA,
+        crypto::Identity clientIdentity,
+        std::function<void()> loopSignal,
+        const std::string& serverHost,
+        const std::string& userAgent = "",
+        const std::string& pushClientId = "",
+        const std::string& pushToken = "",
+        const std::string& pushTopic = "",
+        const std::string& pushPlatform = "",
+        std::shared_ptr<Logger> logger = {}
+    );
 
     void setHeaderFields(http::Request& request);
 
-    virtual void setPushNotificationToken(const std::string& token) override {
+    virtual void setPushNotificationToken(const std::string& token) override;
+
+    virtual void setPushNotificationTopic(const std::string& topic) override {
 #ifdef OPENDHT_PUSH_NOTIFICATIONS
-        deviceKey_ = token;
+        notificationTopic_ = topic;
 #else
-        (void) token;
+        (void) topic;
+#endif
+    }
+
+    virtual void setPushNotificationPlatform(const std::string& platform) override {
+#ifdef OPENDHT_PUSH_NOTIFICATIONS
+        platform_ = platform;
+#else
+        (void) platform;
 #endif
     }
 
@@ -73,6 +91,9 @@ public:
      * Get the ID of the node.
      */
     inline const InfoHash& getNodeId() const override { return myid; }
+    void setOnPublicAddressChanged(PublicAddressChangedCb cb) override {
+        publicAddressChangedCb_ = std::move(cb);
+    }
 
     /**
      * Get the current status of the node for the given family.
@@ -85,7 +106,7 @@ 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 +128,13 @@ 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 +155,7 @@ 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 +164,7 @@ 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 +172,7 @@ 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 +197,14 @@ 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.
@@ -195,7 +216,7 @@ public:
      * Call linked callback with a push notification
      * @param notification to process
      */
-    void pushNotificationReceived(const std::map<std::string, std::string>& notification) override;
+    PushNotificationResult pushNotificationReceived(const std::map<std::string, std::string>& notification) override;
 
     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 {
@@ -214,7 +235,7 @@ 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));
     }
 
     /**
@@ -263,15 +284,20 @@ 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_();
     }
 
+    void listenKeepIdle(uint32_t seconds) {
+        listenKeepIdle_ = seconds;
+    }
+    inline uint32_t listenKeepIdle() { return listenKeepIdle_; }
+
 private:
     /**
      * Start the connection with a server.
@@ -327,7 +353,7 @@ private:
     std::string proxyUrl_;
     dht::crypto::Identity clientIdentity_;
     std::shared_ptr<dht::crypto::Certificate> serverCertificate_;
-    //std::pair<std::string, std::string> serverHostService_;
+    std::string userAgent_ {"OpenDHT"};
     std::string pushClientId_;
     std::string pushSessionId_;
 
@@ -336,8 +362,12 @@ private:
     NodeStatus statusIpv6_ {NodeStatus::Disconnected};
     NodeStats stats4_ {};
     NodeStats stats6_ {};
+    SockAddr localAddrv4_;
+    SockAddr localAddrv6_;
     SockAddr publicAddressV4_;
     SockAddr publicAddressV6_;
+    std::atomic_bool launchConnectedCbs_ {false};
+    PublicAddressChangedCb publicAddressChangedCb_ {};
 
     InfoHash myid {};
 
@@ -349,6 +379,7 @@ private:
      * Note: Each context is used in one thread only
      */
     asio::io_context httpContext_;
+    mutable std::mutex resolverLock_;
     std::shared_ptr<http::Resolver> resolver_;
 
     mutable std::mutex requestLock_;
@@ -367,6 +398,11 @@ private:
     size_t listenerToken_ {0};
     std::map<InfoHash, ProxySearch> searches_;
 
+    /**
+     * Keepalive idle time for listen
+     */
+    uint32_t listenKeepIdle_ {120};
+
     /**
      * Callbacks should be executed in the main thread.
      */
@@ -379,13 +415,13 @@ 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
@@ -399,6 +435,25 @@ 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

include/opendht/dht_proxy_server.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
  *          Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *          Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
@@ -36,10 +36,15 @@
 #include <memory>
 #include <mutex>
 
-namespace http {
-class Request;
-struct ListenerSession;
+namespace dht {
+enum class PushType {
+    None = 0,
+    Android,
+    iOS,
+    UnifiedPush
+};
 }
+MSGPACK_ADD_ENUM(dht::PushType)
 
 namespace Json {
 class Value;
@@ -47,11 +52,25 @@ class Value;
 
 namespace dht {
 
+namespace http {
+class Request;
+struct ListenerSession;
+}
+
 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<log::Logger>& logger = {});
 
     virtual ~DhtProxyServer();
 
@@ -80,46 +98,63 @@ public:
 
     asio::io_context& io_context() const;
 
-    struct ServerStats {
+    using clock = std::chrono::steady_clock;
+    using time_point = clock::time_point;
+
+    struct PushStats {
+        uint64_t highPriorityCount {0};
+        uint64_t normalPriorityCount {0};
+
+        void increment(bool highPriority) {
+            if (highPriority)
+                highPriorityCount++;
+            else
+                normalPriorityCount++;
+        }
+
+        Json::Value toJson() const {
+            Json::Value val;
+            val["highPriorityCount"] = static_cast<Json::UInt64>(highPriorityCount);
+            val["normalPriorityCount"] = static_cast<Json::UInt64>(normalPriorityCount);
+            return val;
+        }
+
+        std::string toString() const {
+            return fmt::format("{} high priority, {} normal priority", highPriorityCount, normalPriorityCount);
+        }
+    };
+
+    struct OPENDHT_PUBLIC 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};
+
+        /** Time at which the server was started */
+        time_point serverStartTime;
+        /** Last time at which the stats were updated */
+        time_point lastUpdated;
+        /** Total number of push notification requests that the server attempted to
+          * send since being started, broken down by type and priority level */
+        PushStats androidPush;
+        PushStats iosPush;
+        PushStats unifiedPush;
+
         /** Average requests per second */
         double requestRate {0};
         /** Node Info **/
         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;
-            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();
-        }
+        std::string toString() const;
 
         /**
          * Build a json object from a NodeStats
          */
-        Json::Value toJson() const {
-            Json::Value result;
-            result["listenCount"] = static_cast<Json::UInt64>(listenCount);
-            result["putCount"] = static_cast<Json::UInt64>(putCount);
-            result["pushListenersCount"] = static_cast<Json::UInt64>(pushListenersCount);
-            result["requestRate"] = requestRate;
-            if (nodeInfo)
-                result["nodeInfo"] = nodeInfo->toJson();
-            return result;
-        }
+        Json::Value toJson() const;
     };
 
     std::shared_ptr<ServerStats> stats() const { return stats_; }
@@ -254,7 +289,18 @@ private:
     RequestStatus options(restinio::request_handle_t request,
                            restinio::router::route_params_t params);
 
+    struct PushSessionContext {
+        std::mutex lock;
+        std::string sessionId;
+        PushSessionContext(const std::string& id) : sessionId(id) {}
+    };
+
 #ifdef OPENDHT_PUSH_NOTIFICATIONS
+    PushType getTypeFromString(const std::string& type);
+    std::string getDefaultTopic(PushType type);
+
+    RequestStatus pingPush(restinio::request_handle_t request,
+                         restinio::router::route_params_t /*params*/);
     /**
      * Subscribe to push notifications for an iOS or Android device.
      * Method: SUBSCRIBE "/{InfoHash: .*}"
@@ -282,17 +328,18 @@ private:
      * @param key of the device
      * @param json, the content to send
      */
-    void sendPushNotification(const std::string& key, Json::Value&& json, bool isAndroid, bool highPriority);
+    void sendPushNotification(const std::string& key, Json::Value&& json, PushType type, bool highPriority, 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,
-                                      std::function<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
@@ -304,18 +351,42 @@ private:
     void handleCancelPushListen(const asio::error_code &ec, const std::string pushToken,
                                 const InfoHash key, const std::string clientId);
 
+    /**
+     * Handles a push listen request.
+     *
+     * @param infoHash The information hash associated with the push listen request.
+     * @param pushToken The push token associated with the push listen request.
+     * @param type The type of the push listen request.
+     * @param clientId The client ID associated with the push listen request.
+     * @param sessionCtx The shared pointer to the push session context associated with the push listen request.
+     * @param topic The topic associated with the push listen request.
+     * @param values The vector of shared pointers to values associated with the push listen request.
+     * @param expired A boolean indicating whether the push listen request has expired.
+     * @return true.
+     */
+    bool handlePushListen(const InfoHash& infoHash, const std::string& pushToken,
+                          PushType type, const std::string& clientId,
+                          const std::shared_ptr<DhtProxyServer::PushSessionContext>& sessionCtx, const std::string& topic,
+                          const std::vector<std::shared_ptr<Value>>& values, bool expired);
+
 #endif //OPENDHT_PUSH_NOTIFICATIONS
 
     void handlePrintStats(const asio::error_code &ec);
     void updateStats();
 
-    using clock = std::chrono::steady_clock;
-    using time_point = clock::time_point;
+    template <typename Os>
+    void saveState(Os& stream);
+
+    template <typename Is>
+    void loadState(Is& is, size_t size);
 
     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_;
@@ -328,11 +399,16 @@ private:
     mutable std::mutex requestLock_;
     std::map<unsigned int /*id*/, std::shared_ptr<http::Request>> requests_;
 
-    std::shared_ptr<dht::Logger> logger_;
+    std::shared_ptr<log::Logger> logger_;
 
     std::shared_ptr<ServerStats> stats_;
     std::shared_ptr<NodeInfo> nodeInfo_ {};
     std::unique_ptr<asio::steady_timer> printStatsTimer_;
+    const time_point serverStartTime_;
+    mutable std::mutex pushStatsMutex_;
+    PushStats androidPush_;
+    PushStats iosPush_;
+    PushStats unifiedPush_;
 
     // Thread-safe access to listeners map.
     std::mutex lockListener_;
@@ -340,11 +416,6 @@ private:
     std::map<restinio::connection_id_t, http::ListenerSession> listeners_;
     // Connection Listener observing conn state changes.
     std::shared_ptr<ConnectionListener> connListener_;
-
-    struct PushSessionContext {
-        std::mutex lock;
-        std::string sessionId;
-    };
     struct PermanentPut {
         time_point expiration;
         std::string pushToken;
@@ -353,9 +424,36 @@ private:
         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_;
@@ -364,21 +462,42 @@ 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) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
@@ -25,8 +25,9 @@
 #include "value.h"
 #include "callbacks.h"
 #include "sockaddr.h"
-#include "log_enable.h"
+#include "logger.h"
 #include "network_utils.h"
+#include "node_export.h"
 
 #include <thread>
 #include <mutex>
@@ -61,10 +62,14 @@ public:
         std::string proxy_server {};
         std::string push_node_id {};
         std::string push_token {};
+        std::string push_topic {};
+        std::string push_platform {};
+        std::string proxy_user_agent {};
         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 {
@@ -72,7 +77,11 @@ public:
         std::unique_ptr<net::DatagramSocket> sock;
         std::shared_ptr<PeerDiscovery> peerDiscovery {};
         StatusCallback statusChangedCallback {};
-        CertificateStoreQuery certificateStore {};
+        CertificateStoreQueryLegacy certificateStore {};
+        CertificateStoreQuery certificateStorePkId {};
+        IdentityAnnouncedCb identityAnnouncedCb {};
+        PublicAddressChangedCb publicAddressChangedCb {};
+        std::unique_ptr<std::mt19937_64> rng {};
         Context() {}
     };
 
@@ -97,7 +106,7 @@ 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 +115,7 @@ 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 +164,7 @@ 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 +178,7 @@ 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 +186,7 @@ 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 +195,7 @@ 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 +211,7 @@ 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 +264,35 @@ 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);
+    }
+
+    [[deprecated("Use the shared_ptr version instead")]]
+    void putEncrypted(InfoHash hash, const std::shared_ptr<crypto::PublicKey>& to, Value&& value, DoneCallback cb={}, bool permanent = false);
+    [[deprecated("Use the shared_ptr version instead")]]
+    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);
+    }
+
+    void putEncrypted(InfoHash hash, const PkId& to, std::shared_ptr<Value> value, DoneCallback cb={}, bool permanent = false);
+    void putEncrypted(InfoHash hash, const PkId& to, std::shared_ptr<Value> value, DoneCallbackSimple cb, bool permanent = false) {
+        putEncrypted(hash, to, 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.
@@ -300,7 +326,8 @@ public:
     /**
      * Get the public key fingerprint if an identity is used with this node, 0 otherwise.
      */
-    InfoHash getId() const;
+    [[deprecated("Use getPublicKey()->getLongId() instead")]] InfoHash getId() const;
+    std::shared_ptr<crypto::PublicKey> getPublicKey() const;
 
     /**
      * Get the ID of the DHT node.
@@ -321,6 +348,7 @@ 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;
@@ -331,7 +359,6 @@ public:
     void setLogger(const Logger& logger) {
         setLogger(std::make_shared<Logger>(logger));
     }
-    void setLoggers(LogMethod err = {}, LogMethod warn = {}, LogMethod debug = {});
 
     /**
      * Only print logs related to the given InfoHash (if given), or disable filter (if zeroes).
@@ -357,13 +384,17 @@ 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
 
     void findCertificate(InfoHash hash, std::function<void(const std::shared_ptr<crypto::Certificate>&)>);
-    void registerCertificate(std::shared_ptr<crypto::Certificate> cert);
+    void findCertificate(PkId hash, std::function<void(const std::shared_ptr<crypto::Certificate>&)>);
+
+    void registerCertificate(const std::shared_ptr<crypto::Certificate>& cert);
+    void setLocalCertificateStore(CertificateStoreQueryLegacy&& query_method);
     void setLocalCertificateStore(CertificateStoreQuery&& query_method);
 
     /**
@@ -379,27 +410,18 @@ 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);
 
     void setOnStatusChanged(StatusCallback&& cb) {
-        statusCb = std::move(cb);
+        if (cb)
+            statusCbs.emplace_back(std::move(cb));
     }
 
     /**
@@ -415,12 +437,14 @@ public:
     /**
      * Gracefuly disconnect from network.
      */
-    void shutdown(ShutdownCallback cb = {});
+    void shutdown(ShutdownCallback cb = {}, bool stop = false);
 
     /**
-     * Quit and wait for all threads to terminate.
-     * No callbacks will be called after this method returns.
-     * All internal state will be lost. The DHT can then be run again with @run().
+     * Stop the node and wait for all threads to terminate.
+     * The node is reset to its default state. The DHT can then be run again with @run().
+     * No DHT callbacks will run after this method returns.
+     * Calling this method is optional. It allows to ensure the destructor won't block.
+     * This method is unable to be called from a DHT callback.
      */
     void join();
 
@@ -431,7 +455,6 @@ 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);
 
@@ -442,17 +465,25 @@ 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
      */
-    void pushNotificationReceived(const std::map<std::string, std::string>& data);
+    std::future<PushNotificationResult> pushNotificationReceived(const std::map<std::string, std::string>& data);
 
     /* Proxy server mothods */
     void forwardAllMessages(bool forward);
 
 private:
-    static constexpr std::chrono::seconds BOOTSTRAP_PERIOD {10};
-
     enum class State {
         Idle,
         Running,
@@ -470,33 +501,20 @@ 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 {};
@@ -515,7 +533,8 @@ private:
 
     NodeStatus status4 {NodeStatus::Disconnected},
                status6 {NodeStatus::Disconnected};
-    StatusCallback statusCb {nullptr};
+
+    std::vector<StatusCallback> statusCbs {};
 
     /** PeerDiscovery Parameters */
     std::shared_ptr<PeerDiscovery> peerDiscovery_;

include/opendht/http.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author: Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -29,23 +29,20 @@
 #   define snprintf snprintf
 #endif
 
+#include <asio/ip/tcp.hpp>
+#include <asio/streambuf.hpp>
 #include <asio/ssl/context.hpp>
-#include <restinio/http_headers.hpp>
 #include <restinio/message_builders.hpp>
 
 #include <memory>
 #include <queue>
 #include <mutex>
+#include <future>
 
 namespace Json {
 class Value;
 }
 
-extern "C" {
-struct http_parser;
-struct http_parser_settings;
-}
-
 namespace restinio {
 namespace impl {
 class tls_socket_t;
@@ -53,7 +50,9 @@ class tls_socket_t;
 }
 
 namespace dht {
+namespace log {
 struct Logger;
+}
 
 namespace crypto {
 struct Certificate;
@@ -72,30 +71,33 @@ using socket_t = asio::ip::tcp::socket;
 class OPENDHT_PUBLIC Url
 {
 public:
-    Url(){};
-    Url(const std::string& url);
+    Url() = default;
+    Url(std::string_view 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>
 {
 public:
-    Connection(asio::io_context& ctx, const bool ssl = true, std::shared_ptr<dht::Logger> l = {});
+    Connection(asio::io_context& ctx, const bool ssl = true, std::shared_ptr<log::Logger> l = {});
     Connection(asio::io_context& ctx, std::shared_ptr<dht::crypto::Certificate> server_ca,
-               const dht::crypto::Identity& identity, std::shared_ptr<dht::Logger> l = {});
+               const dht::crypto::Identity& identity, std::shared_ptr<log::Logger> l = {});
     ~Connection();
 
     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_; }
@@ -111,13 +113,18 @@ 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 = {});
+    void set_keepalive(uint32_t seconds);
+
+    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...);
         };
@@ -139,19 +146,11 @@ private:
     asio::streambuf read_buf_;
     std::istream istream_;
 
-    std::unique_ptr<asio::steady_timer> timeout_timer_;
-    std::shared_ptr<dht::Logger> logger_;
-};
+    asio::ip::address local_address_;
 
-/**
- * Session value associated with a connection_id_t key.
- */
-struct ListenerSession
-{
-    ListenerSession() = default;
-    dht::InfoHash hash;
-    std::future<size_t> token;
-    std::shared_ptr<restinio::response_builder_t<restinio::chunked_output_t>> response;
+    std::unique_ptr<asio::steady_timer> timeout_timer_;
+    std::shared_ptr<log::Logger> logger_;
+    bool checkOcsp_ {false};
 };
 
 /* @class Resolver
@@ -163,15 +162,15 @@ public:
     using ResolverCb = std::function<void(const asio::error_code& ec,
                                           const std::vector<asio::ip::tcp::endpoint>& endpoints)>;
 
-    Resolver(asio::io_context& ctx, const std::string& url, std::shared_ptr<dht::Logger> logger = {});
+    Resolver(asio::io_context& ctx, const std::string& url, std::shared_ptr<log::Logger> logger = {});
     Resolver(asio::io_context& ctx, const std::string& host, const std::string& service,
-             const bool ssl = false, std::shared_ptr<dht::Logger> logger = {});
+             const bool ssl = false, std::shared_ptr<log::Logger> logger = {});
 
     // use already resolved endpoints with classes using this resolver
     Resolver(asio::io_context& ctx, std::vector<asio::ip::tcp::endpoint> endpoints,
-             const bool ssl = false, std::shared_ptr<dht::Logger> logger = {});
+             const bool ssl = false, std::shared_ptr<log::Logger> logger = {});
     Resolver(asio::io_context& ctx, const std::string& url, std::vector<asio::ip::tcp::endpoint> endpoints,
-            std::shared_ptr<dht::Logger> logger = {});
+            std::shared_ptr<log::Logger> logger = {});
 
     ~Resolver();
 
@@ -181,10 +180,12 @@ public:
 
     void add_callback(ResolverCb cb, sa_family_t family = AF_UNSPEC);
 
-    std::shared_ptr<Logger> getLogger() const {
+    std::shared_ptr<log::Logger> getLogger() const {
         return logger_;
     }
 
+    void cancel();
+
 private:
     void resolve(const std::string& host, const std::string& service);
 
@@ -199,7 +200,7 @@ private:
     bool completed_ {false};
     std::queue<ResolverCb> cbs_;
 
-    std::shared_ptr<dht::Logger> logger_;
+    std::shared_ptr<log::Logger> logger_;
 };
 
 class Request;
@@ -226,16 +227,19 @@ public:
     using OnStatusCb = std::function<void(unsigned status_code)>;
     using OnDataCb = std::function<void(const char* at, size_t length)>;
     using OnStateChangeCb = std::function<void(State state, const Response& response)>;
-    using OnJsonCb = std::function<void(Json::Value value, unsigned status_code)>;
+    using OnJsonCb = std::function<void(Json::Value value, const Response& response)>;
     using OnDoneCb = std::function<void(const Response& response)>;
 
     // resolves implicitly
     Request(asio::io_context& ctx, const std::string& url, const Json::Value& json, OnJsonCb jsoncb,
-            std::shared_ptr<dht::Logger> logger = {});
-    Request(asio::io_context& ctx, const std::string& url, std::shared_ptr<dht::Logger> logger = {});
+            std::shared_ptr<log::Logger> logger = {});
+    Request(asio::io_context& ctx, const std::string& url, OnJsonCb jsoncb,
+            std::shared_ptr<log::Logger> logger = {});
+
+    Request(asio::io_context& ctx, const std::string& url, std::shared_ptr<log::Logger> logger = {});
     Request(asio::io_context& ctx, const std::string& host, const std::string& service,
-            const bool ssl = false, std::shared_ptr<dht::Logger> logger = {});
-    Request(asio::io_context& ctx, const std::string& url, OnDoneCb onDone, std::shared_ptr<dht::Logger> logger = {});
+            const bool ssl = false, std::shared_ptr<log::Logger> logger = {});
+    Request(asio::io_context& ctx, const std::string& url, OnDoneCb onDone, std::shared_ptr<log::Logger> logger = {});
 
     // user defined resolver
     Request(asio::io_context& ctx, std::shared_ptr<Resolver> resolver, sa_family_t family = AF_UNSPEC);
@@ -243,7 +247,7 @@ public:
 
     // user defined resolved endpoints
     Request(asio::io_context& ctx, std::vector<asio::ip::tcp::endpoint>&& endpoints,
-            const bool ssl = false, std::shared_ptr<dht::Logger> logger = {});
+            const bool ssl = false, std::shared_ptr<log::Logger> logger = {});
 
     ~Request();
 
@@ -254,6 +258,11 @@ public:
         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();
@@ -265,7 +274,7 @@ public:
 
     void set_certificate_authority(std::shared_ptr<dht::crypto::Certificate> certificate);
     void set_identity(const dht::crypto::Identity& identity);
-    void set_logger(std::shared_ptr<dht::Logger> logger);
+    void set_logger(std::shared_ptr<log::Logger> logger);
 
     /**
      * Define the HTTP header/body as per https://tools.ietf.org/html/rfc7230.
@@ -285,10 +294,14 @@ public:
 
     void send();
 
+    /** Send and block for response */
+    const Response& await();
+
     /**
      * User action to cancel the Request and call the completion callbacks.
      */
     void cancel();
+    void terminate(const asio::error_code& ec);
 
 private:
     using OnCompleteCb = std::function<void()>;
@@ -301,20 +314,22 @@ private:
         OnStateChangeCb on_state_change;
     };
 
+    static std::string getRelativePath(const Url& origin, const std::string& path);
+
     void notify_state_change(State state);
 
     void build();
 
+    static std::string url_encode(std::string_view value);
+
     void init_default_headers();
     /**
-     * Initialized and wraps the http_parser callbacks with our user defined callbacks.
+     * Initialized and wraps the llhttp callbacks with our user defined callbacks.
      */
     void init_parser();
 
     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);
@@ -326,7 +341,7 @@ private:
 
     mutable std::mutex mutex_;
 
-    std::shared_ptr<dht::Logger> logger_;
+    std::shared_ptr<log::Logger> logger_;
 
     restinio::http_request_header_t header_;
     std::map<restinio::http_field_t, std::string> headers_;
@@ -351,28 +366,19 @@ private:
     Response response_ {};
     std::string request_;
     std::atomic<bool> finishing_ {false};
-    std::unique_ptr<http_parser> parser_;
-    std::unique_ptr<http_parser_settings> parser_s_;
+    std::unique_ptr<llhttp_t> parser_;
+    std::unique_ptr<llhttp_settings_t> 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) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *              Nicolas Reynaud <nicolas.reynaud@savoirfairelinux.com>
@@ -266,7 +266,7 @@ private:
 
 using Value = std::pair<InfoHash, dht::Value::Id>;
 struct OPENDHT_PUBLIC IndexEntry : public dht::Value::Serializable<IndexEntry> {
-    static const ValueType TYPE;
+    static const ValueType& TYPE;
 
     virtual void unpackValue(const dht::Value& v) {
         Serializable<IndexEntry>::unpackValue(v);
@@ -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);
     }
 
     /**
@@ -409,7 +409,7 @@ private:
 
         /**
          * This mutlimap contains all prefix insert in the tree in time order
-         * We could then delete the last one if there is too much node
+         * We could then delete the last one if there are too many nodes
          * The tree will self destroy is branch ( thanks to share_ptr )
          */
         std::multimap<time_point, std::shared_ptr<Node>> leaves_;

include/opendht/infohash.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -22,6 +22,7 @@
 #include "rng.h"
 
 #include <msgpack.hpp>
+#include <fmt/core.h>
 
 #ifndef _WIN32
 #include <netinet/in.h>
@@ -40,10 +41,13 @@ 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 {
 
@@ -54,21 +58,21 @@ 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 {
+class Hash {
 public:
     using T = std::array<uint8_t, N>;
     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 +83,12 @@ 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);
@@ -93,25 +102,29 @@ 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); }
 
     bool operator<(const Hash& o) const {
-        for(unsigned i = 0; i < N; i++) {
+        for (unsigned i = 0; i < N; i++) {
             if(data_[i] != o.data_[i])
                 return data_[i] < o.data_[i];
         }
         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 +155,6 @@ 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 +188,12 @@ 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 +222,7 @@ 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());
     }
 
@@ -225,6 +230,11 @@ public:
         return get(data.data(), data.size());
     }
 
+    template <size_t H>
+    static Hash get(const Hash<H>& o) {
+        return get(o.data(), o.size());
+    }
+
     /**
      * Computes the hash from a given data buffer of size data_len.
      */
@@ -237,12 +247,17 @@ public:
 
     static Hash getRandom();
 
-    template <size_t M>
-    OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const Hash<M>& h);
+    template <typename Rd>
+    static Hash getRandom(Rd&);
 
     template <size_t M>
-    OPENDHT_PUBLIC friend std::istream& operator>> (std::istream& s, Hash<M>& h);
+    friend std::ostream& operator<< (std::ostream& s, const Hash<M>& h);
 
+    template <size_t M>
+    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 +301,6 @@ 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) {
@@ -316,7 +323,7 @@ Hash<N>
 Hash<N>::getRandom()
 {
     Hash h;
-    crypto::random_device rdev;
+    std::random_device rdev;
     std::uniform_int_distribution<uint32_t> rand_int;
     auto a = reinterpret_cast<uint32_t*>(h.data());
     auto b = reinterpret_cast<uint32_t*>(h.data() + h.size());
@@ -324,9 +331,22 @@ Hash<N>::getRandom()
     return h;
 }
 
-struct HexMap : public std::array<std::array<char, 2>, 256> {
-    HexMap() {
-        for (size_t i=0; i<size(); i++) {
+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> {
+    constexpr HexMap(): std::array<std::array<char, 2>, 256>() {
+        for (size_t i = 0; i < size(); i++) {
             auto& e = (*this)[i];
             e[0] = hex_digits[(i >> 4) & 0x0F];
             e[1] = hex_digits[i & 0x0F];
@@ -336,18 +356,35 @@ private:
     static constexpr const char* hex_digits = "0123456789abcdef";
 };
 
-OPENDHT_PUBLIC extern const HexMap hex_map;
+inline constexpr 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;
+        auto b = buf.data() + i*2;
         const auto& m = hex_map[data_[i]];
         *((uint16_t*)b) = *((uint16_t*)&m);
     }
+    buf[N*2] = '\0';
     return buf.data();
 }
 
@@ -358,27 +395,11 @@ Hash<N>::toString() const
     return std::string(to_c_str(), N*2);
 }
 
-const InfoHash zeroes {};
-
-struct OPENDHT_PUBLIC NodeExport {
-    InfoHash id;
-    sockaddr_storage ss;
-    socklen_t sslen;
-
-    template <typename Packer>
-    void msgpack_pack(Packer& pk) const
-    {
-        pk.pack_map(2);
-        pk.pack(std::string("id"));
-        pk.pack(id);
-        pk.pack(std::string("addr"));
-        pk.pack_bin(sslen);
-        pk.pack_bin_body((char*)&ss, sslen);
-    }
-
-    void msgpack_unpack(msgpack::object o);
-
-    OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const NodeExport& h);
-};
-
 }
+
+template <size_t N>
+struct fmt::formatter<dht::Hash<N>>: formatter<string_view> {
+  constexpr auto format(const dht::Hash<N>& c, format_context& ctx) const {
+    return formatter<string_view>::format(c.to_view(), ctx);
+  }
+};

include/opendht/log.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *
  *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
@@ -20,7 +20,7 @@
 #pragma once
 
 #include "def.h"
-#include "log_enable.h"
+#include "logger.h"
 
 #include <iostream>
 #include <memory>
@@ -34,42 +34,6 @@ class DhtRunner;
  */
 namespace log {
 
-/**
- * Terminal colors for logging
- */
-namespace Color {
-    enum Code {
-        FG_RED      = 31,
-        FG_GREEN    = 32,
-        FG_YELLOW   = 33,
-        FG_BLUE     = 34,
-        FG_DEFAULT  = 39,
-        BG_RED      = 41,
-        BG_GREEN    = 42,
-        BG_BLUE     = 44,
-        BG_DEFAULT  = 49
-    };
-    class Modifier {
-        const Code code;
-    public:
-        constexpr Modifier(Code pCode) : code(pCode) {}
-        friend std::ostream&
-        operator<<(std::ostream& os, const Modifier& mod) {
-            return os << "\033[" << mod.code << 'm';
-        }
-    };
-}
-
-constexpr const Color::Modifier def(Color::FG_DEFAULT);
-constexpr const Color::Modifier red(Color::FG_RED);
-constexpr const Color::Modifier yellow(Color::FG_YELLOW);
-
-/**
- * Print va_list to std::ostream (used for logging).
- */
-OPENDHT_PUBLIC void
-printLog(std::ostream &s, char const *m, va_list args);
-
 OPENDHT_PUBLIC
 std::shared_ptr<Logger> getStdLogger();
 

include/opendht/log_enable.h

@@ -1,191 +0,0 @@
-/*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
- *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program. If not, see <https://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "infohash.h"
-
-#include <cstdarg>
-
-#ifndef OPENDHT_LOG
-#define OPENDHT_LOG true
-#endif
-
-namespace dht {
-
-// Logging related utility functions
-
-/**
- * Wrapper for logging methods
- */
-struct LogMethod {
-    LogMethod() = default;
-
-    LogMethod(LogMethod&& l) : func(std::move(l.func)) {}
-    LogMethod(const LogMethod& l) : func(l.func) {}
-
-    LogMethod& operator=(dht::LogMethod&& l) {
-        func = std::forward<LogMethod>(l.func);
-        return *this;
-    }
-    LogMethod& operator=(const dht::LogMethod& l) {
-        func = l.func;
-        return *this;
-    }
-
-    template<typename T>
-    explicit LogMethod(T&& t) : func(std::forward<T>(t)) {}
-
-    template<typename T>
-    LogMethod(const T& t) : func(t) {}
-
-    void operator()(char const* format, ...) const {
-        va_list args;
-        va_start(args, format);
-        func(format, args);
-        va_end(args);
-    }
-    inline void log(char const* format, va_list args) const {
-        func(format, args);
-    }
-    explicit operator bool() const {
-        return (bool)func;
-    }
-
-    void logPrintable(const uint8_t *buf, size_t buflen) const {
-        std::string buf_clean(buflen, '\0');
-        for (size_t i=0; i<buflen; i++)
-            buf_clean[i] = isprint(buf[i]) ? buf[i] : '.';
-        (*this)("%s", buf_clean.c_str());
-    }
-private:
-    std::function<void(char const*, va_list)> func;
-};
-
-struct Logger {
-    LogMethod DBG = {};
-    LogMethod WARN = {};
-    LogMethod ERR = {};
-
-    Logger() = default;
-    Logger(LogMethod&& err, LogMethod&& warn, LogMethod&& dbg)
-        : DBG(std::move(dbg)), WARN(std::move(warn)), ERR(std::move(err)) {}
-    void setFilter(const InfoHash& f) {
-        filter_ = f;
-        filterEnable_ = static_cast<bool>(filter_);
-    }
-    inline void log0(const LogMethod& logger, char const* format, va_list args) const {
-#if OPENDHT_LOG
-        if (logger and not filterEnable_)
-            logger.log(format, args);
-#endif
-    }
-    inline void log1(const LogMethod& logger, const InfoHash& f, char const* format, va_list args) const {
-#if OPENDHT_LOG
-        if (logger and (not filterEnable_ or f == filter_))
-            logger.log(format, args);
-#endif
-    }
-    inline void log2(const LogMethod& logger, const InfoHash& f1, const InfoHash& f2, char const* format, va_list args) const {
-#if OPENDHT_LOG
-        if (logger and (not filterEnable_ or f1 == filter_ or f2 == filter_))
-            logger.log(format, args);
-#endif
-    }
-    inline void d(char const* format, ...) const {
-#if OPENDHT_LOG
-        va_list args;
-        va_start(args, format);
-        log0(DBG, format, args);
-        va_end(args);
-#endif
-    }
-    inline void d(const InfoHash& f, char const* format, ...) const {
-#if OPENDHT_LOG
-        va_list args;
-        va_start(args, format);
-        log1(DBG, f, format, args);
-        va_end(args);
-#endif
-    }
-    inline void d(const InfoHash& f1, const InfoHash& f2, char const* format, ...) const {
-#if OPENDHT_LOG
-        va_list args;
-        va_start(args, format);
-        log2(DBG, f1, f2, format, args);
-        va_end(args);
-#endif
-    }
-    inline void w(char const* format, ...) const {
-#if OPENDHT_LOG
-        va_list args;
-        va_start(args, format);
-        log0(WARN, format, args);
-        va_end(args);
-#endif
-    }
-    inline void w(const InfoHash& f, char const* format, ...) const {
-#if OPENDHT_LOG
-        va_list args;
-        va_start(args, format);
-        log1(WARN, f, format, args);
-        va_end(args);
-#endif
-    }
-    inline void w(const InfoHash& f1, const InfoHash& f2, char const* format, ...) const {
-#if OPENDHT_LOG
-        va_list args;
-        va_start(args, format);
-        log2(WARN, f1, f2, format, args);
-        va_end(args);
-#endif
-    }
-    inline void e(char const* format, ...) const {
-#if OPENDHT_LOG
-        va_list args;
-        va_start(args, format);
-        log0(ERR, format, args);
-        va_end(args);
-#endif
-    }
-    inline void e(const InfoHash& f, char const* format, ...) const {
-#if OPENDHT_LOG
-        va_list args;
-        va_start(args, format);
-        log1(ERR, f, format, args);
-        va_end(args);
-#endif
-    }
-    inline void e(const InfoHash& f1, const InfoHash& f2, char const* format, ...) const {
-#if OPENDHT_LOG
-        va_list args;
-        va_start(args, format);
-        log2(ERR, f1, f2, format, args);
-        va_end(args);
-#endif
-    }
-private:
-    bool filterEnable_ {false};
-    InfoHash filter_ {};
-};
-
-}

include/opendht/logger.h

@@ -0,0 +1,136 @@
+/*
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
+ *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "infohash.h"
+
+#include <fmt/format.h>
+#include <fmt/printf.h>
+
+#include <functional>
+#include <string_view>
+#include <cstdarg>
+
+namespace dht {
+namespace log {
+
+enum class LogLevel { debug, warning, error };
+
+using LogMethod = std::function<void(LogLevel, std::string&&)>;
+
+struct OPENDHT_PUBLIC Logger
+{
+    Logger() = delete;
+    Logger(LogMethod&& l)
+        : logger(std::move(l))
+    {
+        if (!logger)
+            throw std::invalid_argument {"logger and loggerf must be set"};
+    }
+    void setFilter(const InfoHash& f)
+    {
+        filter_ = f;
+        filterEnable_ = static_cast<bool>(filter_);
+    }
+    inline void log0(LogLevel level, fmt::string_view format, fmt::printf_args args) const
+    {
+        if (not filterEnable_)
+            logger(level, fmt::vsprintf(format, args));
+    }
+    inline void log1(LogLevel level, const InfoHash& f, fmt::string_view format, fmt::printf_args args) const
+    {
+        if (not filterEnable_ or f == filter_)
+            logger(level, fmt::vsprintf(format, args));
+    }
+    inline void log2(
+        LogLevel level, const InfoHash& f1, const InfoHash& f2, fmt::string_view format, fmt::printf_args args) const
+    {
+        if (not filterEnable_ or f1 == filter_ or f2 == filter_)
+            logger(level, fmt::vsprintf(format, args));
+    }
+    template<typename... Args>
+    inline void debug(fmt::format_string<Args...> format, Args&&... args) const
+    {
+        logger(LogLevel::debug, fmt::format(format, std::forward<Args>(args)...));
+    }
+    template<typename... Args>
+    inline void warn(fmt::format_string<Args...> format, Args&&... args) const
+    {
+        logger(LogLevel::warning, fmt::format(format, std::forward<Args>(args)...));
+    }
+    template<typename... Args>
+    inline void error(fmt::format_string<Args...> format, Args&&... args) const
+    {
+        logger(LogLevel::error, fmt::format(format, std::forward<Args>(args)...));
+    }
+    template<typename... T>
+    inline void d(fmt::format_string<T...> format, T&&... args) const
+    {
+        log0(LogLevel::debug, format, fmt::make_printf_args(args...));
+    }
+    template<typename... T>
+    inline void d(const InfoHash& f, fmt::format_string<T...> format, T&&... args) const
+    {
+        log1(LogLevel::debug, f, format, fmt::make_printf_args(args...));
+    }
+    template<typename... T>
+    inline void d(const InfoHash& f1, const InfoHash& f2, fmt::format_string<T...> format, T&&... args) const
+    {
+        log2(LogLevel::debug, f1, f2, format, fmt::make_printf_args(args...));
+    }
+    template<typename... T>
+    inline void w(fmt::format_string<T...> format, T&&... args) const
+    {
+        log0(LogLevel::warning, format, fmt::make_printf_args(args...));
+    }
+    template<typename... T>
+    inline void w(const InfoHash& f, fmt::format_string<T...> format, T&&... args) const
+    {
+        log1(LogLevel::warning, f, format, fmt::make_printf_args(args...));
+    }
+    template<typename... T>
+    inline void w(const InfoHash& f1, const InfoHash& f2, fmt::format_string<T...> format, T&&... args) const
+    {
+        log2(LogLevel::warning, f1, f2, format, fmt::make_printf_args(args...));
+    }
+    template<typename... T>
+    inline void e(fmt::format_string<T...> format, T&&... args) const
+    {
+        log0(LogLevel::error, format, fmt::make_printf_args(args...));
+    }
+    template<typename... T>
+    inline void e(const InfoHash& f, fmt::format_string<T...> format, T&&... args) const
+    {
+        log1(LogLevel::error, f, format, fmt::make_printf_args(args...));
+    }
+    template<typename... T>
+    inline void e(const InfoHash& f1, const InfoHash& f2, fmt::format_string<T...> format, T&&... args) const
+    {
+        log2(LogLevel::error, f1, f2, format, fmt::make_printf_args(args...));
+    }
+
+private:
+    LogMethod logger = {};
+    bool filterEnable_ {false};
+    InfoHash filter_ {};
+};
+
+} // namespace log
+using Logger = log::Logger;
+} // namespace dht

include/opendht/network_engine.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *
@@ -27,7 +27,7 @@
 #include "utils.h"
 #include "rng.h"
 #include "rate_limiter.h"
-#include "log_enable.h"
+#include "logger.h"
 #include "network_utils.h"
 
 #include <vector>
@@ -52,24 +52,25 @@ struct NetworkConfig {
     NetId network {0};
     ssize_t max_req_per_sec {0};
     ssize_t max_peer_req_per_sec {0};
+    bool is_client {false};
 };
 
 class DhtProtocolException : public DhtException {
 public:
     // sent to another peer (http-like).
     static const constexpr uint16_t NON_AUTHORITATIVE_INFORMATION {203}; /* incomplete request packet. */
-    static const constexpr uint16_t UNAUTHORIZED {401};                  /* wrong tokens. */
+    static const constexpr uint16_t UNAUTHORIZED {401};                  /* incorrect tokens. */
     static const constexpr uint16_t NOT_FOUND {404};                     /* storage not found */
     // for internal use (custom).
     static const constexpr uint16_t INVALID_TID_SIZE {421};              /* id was truncated. */
     static const constexpr uint16_t UNKNOWN_TID {422};                   /* unknown tid */
-    static const constexpr uint16_t WRONG_NODE_INFO_BUF_LEN {423};       /* node info length is wrong */
+    static const constexpr uint16_t WRONG_NODE_INFO_BUF_LEN {423};       /* node info length is incorrect */
 
     static const std::string GET_NO_INFOHASH;    /* received "get" request with no infohash */
     static const std::string LISTEN_NO_INFOHASH; /* got "listen" request without infohash */
-    static const std::string LISTEN_WRONG_TOKEN; /* wrong token in "listen" request */
+    static const std::string LISTEN_WRONG_TOKEN; /* incorrect token in "listen" request */
     static const std::string PUT_NO_INFOHASH;    /* no infohash in "put" request */
-    static const std::string PUT_WRONG_TOKEN;    /* got "put" request with wrong token */
+    static const std::string PUT_WRONG_TOKEN;    /* got "put" request with incorrect token */
     static const std::string STORAGE_NOT_FOUND;  /* got access request for an unknown storage */
     static const std::string PUT_INVALID_ID;     /* invalid id in "put" request */
 
@@ -180,7 +181,8 @@ private:
             const InfoHash&,
             const Blob&,
             Tid,
-            const Query&)> onListen {};
+            const Query&,
+            int)> onListen {};
     /**
      * Called on announce request.
      *
@@ -210,9 +212,9 @@ private:
 
 public:
     using RequestCb = std::function<void(const Request&, RequestAnswer&&)>;
+    using RequestErrorCb = std::function<bool(const Request&, DhtProtocolException&&)>;
     using RequestExpiredCb = std::function<void(const Request&, bool)>;
 
-    NetworkEngine(const Sp<Logger>& log, std::mt19937_64& rd, Scheduler& scheduler, std::unique_ptr<DatagramSocket>&& sock);
     NetworkEngine(
             InfoHash& myid,
             NetworkConfig config,
@@ -237,9 +239,10 @@ public:
     void clear();
 
     /**
-     * Sends values (with closest nodes) to a listenner.
+     * Sends values (with closest nodes) to a listener.
      *
-     * @param sa          The address of the listenner.
+     * @deprecated
+     * @param sa          The address of the listener.
      * @param sslen       The length of the sockaddr structure.
      * @param socket_id  The tid to use to write to the request socket.
      * @param hash        The hash key of the value.
@@ -248,13 +251,14 @@ public:
      * @param nodes       The ipv4 closest nodes.
      * @param nodes6      The ipv6 closest nodes.
      * @param values      The values to send.
+     * @param version     If version = 1, a request will be used to answer to the listener
      */
-    void tellListener(Sp<Node> n, Tid socket_id, const InfoHash& hash, want_t want, const Blob& ntoken,
+    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; }
@@ -275,7 +279,7 @@ 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.
@@ -289,7 +293,7 @@ public:
      */
     Sp<Request>
     sendPing(SockAddr&& sa, RequestCb&& on_done, RequestExpiredCb&& on_expired) {
-        return sendPing(std::make_shared<Node>(zeroes, std::move(sa), rd),
+        return sendPing(std::make_shared<Node>(InfoHash::zero(), std::move(sa), rd),
                 std::forward<RequestCb>(on_done),
                 std::forward<RequestExpiredCb>(on_expired));
     }
@@ -306,7 +310,7 @@ 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 = {},
@@ -325,7 +329,7 @@ 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,
@@ -341,11 +345,11 @@ public:
      * @param previous    The previous request "listen" sent to this node.
      * @param socket      **UNUSED** The socket for further response.
      *
-     *                    For backward compatibility purpose, sendListen has to
-     *                    handle creation of the socket. Therefor, you cannot
-     *                    use openSocket yourself. TODO: Once we don't support
-     *                    the old "listen" negociation, sendListen shall not
-     *                    create the socket itself.
+     *                    For backward compatibility purposes, sendListen has to
+     *                    handle creation of the socket. Therefore, you are unable to
+     *                    use openSocket yourself.
+     *                    TODO: Once we don't support the old "listen" negotiation,
+     *                    sendListen shall not create the socket itself.
      *
      * @param on_done     Request callback when the request is completed.
      * @param on_expired  Request callback when the request expires.
@@ -354,14 +358,13 @@ 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.
      *
@@ -375,7 +378,7 @@ 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,
@@ -395,12 +398,38 @@ 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.
+     */
+    void sendUpdateValues(const Sp<Node>& n,
+                                 const InfoHash& infohash,
+                                 std::vector<Sp<Value>>&& values,
+                                 time_point created,
+                                 const Blob& token,
+                                 size_t sid);
+    Sp<Request> sendUpdateValues(const Sp<Node>& n,
+                                 const InfoHash& infohash,
+                                 std::vector<Sp<Value>>::iterator begin,
+                                 std::vector<Sp<Value>>::iterator end,
+                                 time_point created,
+                                 const Blob& token,
+                                 size_t sid);
 
     /**
      * Parses a message and calls appropriate callbacks.
@@ -413,8 +442,8 @@ 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;
     }
@@ -471,8 +500,7 @@ private:
 
     static constexpr size_t MTU {1280};
     static constexpr size_t MAX_PACKET_VALUE_SIZE {600};
-
-    static const std::string my_v;
+    static constexpr size_t MAX_MESSAGE_VALUE_SIZE {56 * 1024};
 
     void process(std::unique_ptr<ParsedMessage>&&, const SockAddr& from);
 
@@ -490,20 +518,24 @@ 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);
-    std::vector<Blob> packValueHeader(msgpack::sbuffer&, const std::vector<Sp<Value>>&);
+    void sendValueParts(Tid tid, const std::vector<Blob>& svals, const SockAddr& addr);
+    std::vector<Blob> packValueHeader(msgpack::sbuffer&, std::vector<Sp<Value>>::const_iterator, std::vector<Sp<Value>>::const_iterator) const;
+    std::vector<Blob> packValueHeader(msgpack::sbuffer& buf, const std::vector<Sp<Value>>& values) const {
+        return packValueHeader(buf, values.begin(), values.end());
+    }
     void maintainRxBuffer(Tid tid);
 
     /*************

include/opendht/network_utils.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -21,7 +21,7 @@
 
 #include "sockaddr.h"
 #include "utils.h"
-#include "log_enable.h"
+#include "logger.h"
 
 #ifdef _WIN32
 #include <ws2tcpip.h>
@@ -42,7 +42,7 @@ namespace dht {
 namespace net {
 
 static const constexpr in_port_t DHT_DEFAULT_PORT = 4222;
-static const constexpr size_t RX_QUEUE_MAX_SIZE = 1024 * 16;
+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);

include/opendht/node.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *
@@ -22,6 +22,7 @@
 #include "infohash.h" // includes socket structures
 #include "utils.h"
 #include "sockaddr.h"
+#include "node_export.h"
 
 #include <list>
 #include <map>
@@ -52,7 +53,7 @@ struct Node {
     Node(const InfoHash& id, const sockaddr* sa, socklen_t salen, std::mt19937_64& rd)
         : Node(id, SockAddr(sa, salen), rd) {}
 
-    InfoHash getId() const {
+    const InfoHash& getId() const {
         return id;
     }
     const SockAddr& getAddr() const { return addr; }
@@ -92,8 +93,7 @@ struct Node {
     NodeExport exportNode() const {
         NodeExport ne;
         ne.id = id;
-        ne.sslen = addr.getLength();
-        std::memcpy(&ne.ss, addr.get(), ne.sslen);
+        ne.addr = addr;
         return ne;
     }
     sa_family_t getFamily() const { return addr.getFamily(); }
@@ -139,7 +139,7 @@ struct Node {
      */
     Tid getNewTid() {
         ++transaction_id;
-        return transaction_id ? ++transaction_id : transaction_id;
+        return transaction_id ? transaction_id : ++transaction_id;
     }
 
     std::string toString() const;

include/opendht/node_cache.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify

include/opendht/node_export.h

@@ -0,0 +1,48 @@
+/*
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+#include "def.h"
+#include "infohash.h"
+#include "sockaddr.h"
+
+#include <string_view>
+
+namespace dht {
+using namespace std::literals;
+
+struct OPENDHT_PUBLIC NodeExport {
+    InfoHash id;
+    SockAddr addr;
+
+    template <typename Packer>
+    void msgpack_pack(Packer& pk) const
+    {
+        pk.pack_map(2);
+        pk.pack("id"sv);
+        pk.pack(id);
+        pk.pack("addr"sv);
+        pk.pack_bin(addr.getLength());
+        pk.pack_bin_body((const char*)addr.get(), (size_t)addr.getLength());
+    }
+
+    void msgpack_unpack(msgpack::object o);
+
+    OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const NodeExport& h);
+};
+
+}

include/opendht/peer_discovery.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author(s) : Mingrui Zhang <mingrui.zhang@savoirfairelinux.com>
  *              Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
  *
@@ -22,8 +22,10 @@
 #include "def.h"
 #include "sockaddr.h"
 #include "infohash.h"
-#include "log_enable.h"
+#include "logger.h"
+#include "utils.h"
 
+#include <asio/steady_timer.hpp>
 #include <thread>
 
 namespace asio {
@@ -36,31 +38,34 @@ class OPENDHT_PUBLIC PeerDiscovery
 {
 public:
     static constexpr in_port_t DEFAULT_PORT = 8888;
-    using ServiceDiscoveredCallback = std::function<void(msgpack::object&&, SockAddr&&)>;
+    using ServiceDiscoveredCallback = std::function<void(msgpack::object &&, SockAddr &&)>;
 
-    PeerDiscovery(in_port_t port = DEFAULT_PORT, std::shared_ptr<asio::io_context> ioContext = {}, std::shared_ptr<Logger> logger = {});
+    PeerDiscovery(in_port_t port = DEFAULT_PORT,
+                std::shared_ptr<asio::io_context> ioContext = {},
+                std::shared_ptr<Logger> logger = {});
     ~PeerDiscovery();
 
     /**
-     * startDiscovery - Keep Listening data from the sender until node is joinned or stop is called
-    */
-    void startDiscovery(const std::string &type, ServiceDiscoveredCallback callback);
+     * startDiscovery - Keep Listening data from the sender until node is joinned
+     * or stop is called
+     */
+    void startDiscovery(std::string_view type, ServiceDiscoveredCallback callback);
 
-    template<typename T>
-    void startDiscovery(const std::string &type, std::function<void(T&&, SockAddr&&)> cb) {
-        startDiscovery(type, [cb](msgpack::object&& ob, SockAddr&& addr) {
+    template <typename T>
+    void startDiscovery(std::string_view type, std::function<void(T &&, SockAddr &&)> cb) {
+        startDiscovery(type, [cb](msgpack::object &&ob, SockAddr &&addr) {
             cb(ob.as<T>(), std::move(addr));
         });
     }
 
     /**
      * startPublish - Keeping sending data until node is joinned or stop is called
-    */
-    void startPublish(const std::string &type, const msgpack::sbuffer &pack_buf);
-    void startPublish(sa_family_t domain, const std::string &type, const msgpack::sbuffer &pack_buf);
+     */
+    void startPublish(std::string_view type, const msgpack::sbuffer &pack_buf);
+    void startPublish(sa_family_t domain, std::string_view type, const msgpack::sbuffer &pack_buf);
 
-    template<typename T>
-    void startPublish(const std::string &type, const T& object) {
+    template <typename T>
+    void startPublish(std::string_view type, const T &object) {
         msgpack::sbuffer buf;
         msgpack::pack(buf, object);
         startPublish(type, buf);
@@ -68,22 +73,24 @@ public:
 
     /**
      * Thread Stopper
-    */
+     */
     void stop();
 
     /**
      * Remove possible callBack to discovery
-    */
-    bool stopDiscovery(const std::string &type);
+     */
+    bool stopDiscovery(std::string_view type);
 
     /**
      * Remove different serivce message to send
-    */
-    bool stopPublish(const std::string &type);
-    bool stopPublish(sa_family_t domain, const std::string &type);
+     */
+    bool stopPublish(std::string_view type);
+    bool stopPublish(sa_family_t domain, std::string_view type);
 
     void connectivityChanged();
 
+    void stopConnectivityChanged();
+
 private:
     class DomainPeerDiscovery;
     std::unique_ptr<DomainPeerDiscovery> peerDiscovery4_;
@@ -92,4 +99,4 @@ private:
     std::thread ioRunnner_;
 };
 
-}
+} // namespace dht

include/opendht/proxy.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -24,7 +24,7 @@ namespace proxy {
 
 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) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 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) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -21,101 +21,55 @@
 #include <random>
 #include <algorithm>
 #include <functional>
+#include <thread>
+#include <stdexcept>
 
 namespace dht {
 namespace crypto {
 
-#ifndef _MSC_VER
-#ifdef _WIN32
+/** 
+ * Generate a seeded random engine.
+ */
+template<class T = std::mt19937, std::size_t N = T::state_size+1>
+auto getSeededRandomEngine() -> typename std::enable_if<!!N, T>::type {
+    std::array<typename T::result_type, N> random_data;
+    constexpr auto gen = [](std::random_device& source) -> typename T::result_type {
+        for (unsigned j=0; j<64; j++) {
+            try {
+                return source();
+            } catch (...) {
+                std::this_thread::sleep_for(std::chrono::microseconds(500));
+            }
+        }
+        throw std::runtime_error("Can't generate random number");
+    };
+    for (unsigned i=0; i<8; i++) {
+        try {
+            std::random_device source;
+            for (auto& r : random_data)
+                r = gen(source);
+            std::seed_seq seed(
+                (std::seed_seq::result_type*)random_data.data(),
+                (std::seed_seq::result_type*)(random_data.data() + random_data.size()));
+            return T(seed);
+        } catch (...) {
+            std::this_thread::sleep_for(std::chrono::microseconds(500));
+        }
+    }
+    throw std::runtime_error("Can't seed random seed");
+}
 
 /**
- * Hardware random number generator using Intel RDRAND/RDSEED,
- * API-compatible with std::random_device.
+ * Generate a random engine from another source.
  */
-class random_device {
-public:
-    using result_type = std::random_device::result_type;
-    using pseudo_engine = std::mt19937_64;
-
-    /**
-     * Current implementation assumption : result_type must be of a size
-     * supported by Intel RDRAND/RDSEED.
-     * result_type is unsigned int so this is currently safe.
-     */
-    static_assert(
-        sizeof(result_type) == 2 ||
-        sizeof(result_type) == 4 ||
-        sizeof(result_type) == 8,
-        "result_type must be 16, 32 or 64 bits");
-
-    random_device();
-
-    result_type operator()();
-
-    static constexpr result_type min() {
-        return std::numeric_limits<result_type>::lowest();
-    }
-
-    static constexpr result_type max() {
-        return std::numeric_limits<result_type>::max();
-    }
-
-    double entropy() const {
-        if (hasRdrand() or hasRdseed())
-            return 1.;
-        return 0.;
-    }
-
-    static bool hasRdrand() {
-        static const bool hasrdrand = _hasRdrand();
-        return hasrdrand;
-    }
-
-    static bool hasRdseed() {
-        static const bool hasrdseed = _hasRdseed();
-        return hasrdseed;
-    }
-
-private:
-    random_device& operator=(random_device&) = delete;
-
-    pseudo_engine gen;
-    std::uniform_int_distribution<result_type> dis {};
-
-    static bool hasIntelCpu();
-    static bool _hasRdrand();
-    static bool _hasRdseed();
-
-    struct CPUIDinfo {
-        unsigned int EAX;
-        unsigned int EBX;
-        unsigned int ECX;
-        unsigned int EDX;
-        CPUIDinfo(const unsigned int func, const unsigned int subfunc);
-    };
-    bool rdrandStep(result_type* r);
-    bool rdrand(result_type* r);
-    bool rdseedStep(result_type* r);
-    bool rdseed(result_type* r);
-};
-
-#else
-
-using random_device = std::random_device;
-
-#endif
-#else
-using random_device = std::random_device;
-#endif
-
-template<class T = std::mt19937, std::size_t N = T::state_size>
-auto getSeededRandomEngine () -> typename std::enable_if<!!N, T>::type {
-    typename T::result_type random_data[N];
-    random_device source;
-    std::generate(std::begin(random_data), std::end(random_data), std::ref(source));
-    std::seed_seq seeds(std::begin(random_data), std::end(random_data));
-    T seededEngine (seeds);
-    return seededEngine;
+template<class T = std::mt19937, std::size_t N = T::state_size+1>
+auto getDerivedRandomEngine(T& source) -> typename std::enable_if<!!N, T>::type {
+    std::array<typename T::result_type, N> random_data;
+    std::generate(random_data.begin(), random_data.end(), std::ref(source));
+    std::seed_seq seed(
+        (std::seed_seq::result_type*)random_data.data(),
+        (std::seed_seq::result_type*)(random_data.data() + random_data.size()));
+    return T(seed);
 }
 
 }} // dht::crypto

include/opendht/routing_table.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
  *

include/opendht/scheduler.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 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.
      *
@@ -68,16 +64,29 @@ 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.
      *

include/opendht/securedht.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 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);
 
@@ -86,7 +87,7 @@ public:
 
     /**
      * "Secure" get(), that will check the signature of signed data, and decrypt encrypted data.
-     * If the signature can't be checked, or if the data can't be decrypted, it is not returned.
+     * If the signature is unable to be checked, or if the data is unable to be decrypted, it is not returned.
      * Public, non-signed & non-encrypted data is retransmitted as-is.
      */
     void get(const InfoHash& id, GetCallback cb, DoneCallback donecb={}, Value::Filter&& = {}, Where&& w = {}) override;
@@ -114,9 +115,19 @@ public:
      * The operation will be immediate if the recipient' public key is known (otherwise it will be retrived first).
      */
     void putEncrypted(const InfoHash& hash, const InfoHash& to, Sp<Value> val, DoneCallback callback, bool permanent = false);
+
+    [[deprecated("Use the shared_ptr version instead")]]
     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);
+
+    [[deprecated("Use the shared_ptr version instead")]]
+    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);
+    }
+
+    void putEncrypted(const InfoHash& hash, const PkId& to, Sp<Value> val, DoneCallback callback, bool permanent = false);
 
     /**
      * Take ownership of the value and sign it using our private key.
@@ -128,28 +139,39 @@ 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);
-    void registerCertificate(Sp<crypto::Certificate>& cert);
+    void findCertificate(const PkId& id, const std::function<void(const Sp<crypto::Certificate>)>& cb);
+    void findPublicKey(const PkId& id, const std::function<void(const Sp<crypto::PublicKey>)>& cb);
 
-    const Sp<crypto::Certificate> getCertificate(const InfoHash& node) const;
-    const Sp<const crypto::PublicKey> getPublicKey(const InfoHash& node) const;
+    void registerCertificate(const Sp<crypto::Certificate>& cert);
+
+    Sp<crypto::Certificate> getCertificate(const InfoHash& node) const;
+    Sp<crypto::PublicKey> getPublicKey(const InfoHash& node) const;
+
+    Sp<crypto::Certificate> getCertificate(const PkId& node) const;
+    Sp<crypto::PublicKey> getPublicKey(const PkId& node) const;
 
     /**
      * Allows to set a custom callback called by the library to find a locally-stored certificate.
      * The search key used is the public key ID, so there may be multiple certificates retured, signed with
      * the same private key.
      */
+    void setLocalCertificateStore(CertificateStoreQueryLegacy&& query_method) {
+        localQueryMethodLegacy_ = std::move(query_method);
+    }
     void setLocalCertificateStore(CertificateStoreQuery&& query_method) {
         localQueryMethod_ = std::move(query_method);
     }
+    void setOnPublicAddressChanged(PublicAddressChangedCb cb) override {
+        dht_->setOnPublicAddressChanged(cb);
+    }
 
     /**
      * 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 +190,10 @@ 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();
     }
@@ -316,8 +342,8 @@ public:
      * Call linked callback with push_notification
      * @param notification to process
      */
-    void pushNotificationReceived(const std::map<std::string, std::string>& notification) override {
-        dht_->pushNotificationReceived(notification);
+    PushNotificationResult pushNotificationReceived(const std::map<std::string, std::string>& notification) override {
+        return dht_->pushNotificationReceived(notification);
     }
 
     void setLogger(const Logger& logger) override {
@@ -348,15 +374,21 @@ private:
     ValueCallback getCallbackFilter(const ValueCallback&, Value::Filter&&);
     GetCallback getCallbackFilter(const GetCallback&, Value::Filter&&);
 
+    Sp<crypto::Certificate> registerCertificate(const InfoHash& node, const Blob& cert);
+    Sp<crypto::Certificate> registerCertificate(const PkId& node, const Blob& cert);
+
     Sp<crypto::PrivateKey> key_ {};
     Sp<crypto::Certificate> certificate_ {};
 
     // method to query the local certificate store
     CertificateStoreQuery localQueryMethod_ {};
+    CertificateStoreQueryLegacy localQueryMethodLegacy_ {};
 
     // 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::map<PkId, Sp<crypto::Certificate>> nodesCertificatesLong_ {};
+    std::map<PkId, Sp<crypto::PublicKey>> nodesPubKeysLong_ {};
 
     std::atomic_bool forward_all_ {false};
     bool enableCache_ {false};
@@ -369,13 +401,13 @@ const ValueType CERTIFICATE_TYPE = {
         try {
             crypto::Certificate crt(v->data);
             // TODO check certificate signature
-            return crt.getPublicKey().getId() == id;
+            return crt.getPublicKey().getId() == id || InfoHash::get(crt.getPublicKey().getLongId()) == id;
         } catch (const std::exception& e) {}
         return false;
     },
     [](InfoHash, const Sp<Value>& o, Sp<Value>& n, const InfoHash&, const SockAddr&) {
         try {
-            return crypto::Certificate(o->data).getPublicKey().getId() == crypto::Certificate(n->data).getPublicKey().getId();
+            return crypto::Certificate(o->data).getPublicKey().getLongId() == crypto::Certificate(n->data).getPublicKey().getLongId();
         } catch (const std::exception& e) {}
         return false;
     }

include/opendht/sockaddr.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -20,6 +20,10 @@
 
 #include "def.h"
 
+#include <fmt/core.h>
+#include <fmt/format.h>
+#include <fmt/ostream.h>
+
 #ifndef _WIN32
 #include <sys/socket.h>
 #include <netinet/in.h>
@@ -48,6 +52,7 @@ typedef uint16_t in_port_t;
 
 namespace dht {
 
+OPENDHT_PUBLIC void print_addr(std::ostream& os, const sockaddr* sa, socklen_t slen);
 OPENDHT_PUBLIC std::string print_addr(const sockaddr* sa, socklen_t slen);
 OPENDHT_PUBLIC std::string print_addr(const sockaddr_storage& ss, socklen_t sslen);
 
@@ -68,7 +73,7 @@ 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);
     }
@@ -144,12 +149,12 @@ public:
             if (len) addr.reset((sockaddr*)::calloc(len, 1));
             else     addr.reset();
         }
-        if (len > sizeof(sa_family_t))
+        if (len)
             addr->sa_family = af;
     }
 
     /**
-     * Set Network Interface to any
+     * Set address to any
      */
     void setAny() {
         auto family = getFamily();
@@ -163,6 +168,21 @@ public:
         }
     }
 
+    /**
+     * Set address to loopback.
+     */
+    void setLoopback() {
+        auto family = getFamily();
+        switch(family) {
+        case AF_INET:
+            getIPv4().sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+            break;
+        case AF_INET6:
+            getIPv6().sin6_addr = in6addr_loopback;
+            break;
+        }
+    }
+
     /**
      * Retreive the port (in host byte order) or 0 if the address is not
      * of a supported family.
@@ -223,19 +243,28 @@ 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.
      */
@@ -280,6 +309,11 @@ public:
                                (uint8_t*)b.get()+start, len) < 0;
         }
     };
+    friend std::ostream& operator<< (std::ostream& s, const SockAddr& h) {
+        print_addr(s, h.get(), h.getLength());
+        return s;
+    }
+
 private:
     struct free_delete { void operator()(void* p) { ::free(p); } };
     std::unique_ptr<sockaddr, free_delete> addr {};
@@ -300,3 +334,7 @@ private:
 OPENDHT_PUBLIC bool operator==(const SockAddr& a, const SockAddr& b);
 
 }
+
+#if FMT_VERSION >= 90000
+template <> struct fmt::formatter<dht::SockAddr> : ostream_formatter {};
+#endif

include/opendht/thread_pool.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 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 {
@@ -35,7 +37,7 @@ public:
     static ThreadPool& io();
 
     ThreadPool();
-    ThreadPool(size_t maxThreads);
+    ThreadPool(unsigned minThreads, unsigned maxThreads = 0);
     ~ThreadPool();
 
     void run(std::function<void()>&& cb);
@@ -59,19 +61,24 @@ public:
         return get(std::move(cb));
     }
 
-    void stop();
+    void stop(bool wait = true);
     void join();
+    void detach();
 
 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_ {};
-
-    const unsigned maxThreads_;
+    std::queue<std::function<void()>> tasks_ {};
+    std::vector<std::unique_ptr<std::thread>> threads_;
+    unsigned readyThreads_ {0};
     bool running_ {true};
+
+    unsigned minThreads_;
+    const unsigned maxThreads_;
+    std::chrono::steady_clock::duration threadExpirationDelay {std::chrono::minutes(5)};
+    double threadDelayRatio_ {2};
+
+    void threadEnded(std::thread&);
 };
 
 class OPENDHT_PUBLIC Executor : public std::enable_shared_from_this<Executor> {
@@ -93,4 +100,71 @@ 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) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 Savoir-faire Linux Inc.
  *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -20,12 +20,15 @@
 
 #include "def.h"
 
+#include <type_traits>
 #include <msgpack.hpp>
+#include <fmt/format.h>
 
 #include <chrono>
 #include <random>
 #include <functional>
 #include <map>
+#include <string_view>
 
 #include <cstdarg>
 
@@ -46,32 +49,38 @@ OPENDHT_PUBLIC const char* version();
 template<class T>
 using Sp = std::shared_ptr<T>;
 
-template <typename Key, typename Item, typename Condition>
-void erase_if(std::map<Key, Item>& map, const Condition& condition)
+template<typename Key, typename Item, typename Condition>
+void
+erase_if(std::map<Key, Item>& map, const Condition& condition)
 {
-    for (auto it = map.begin(); it != map.end(); ) {
+    for (auto it = map.begin(); it != map.end();) {
         if (condition(*it)) {
             it = map.erase(it);
-        } else { ++it; }
+        } else {
+            ++it;
+        }
     }
 }
 
 /**
  * Split "[host]:port" or "host:port" to pair<"host", "port">.
  */
-OPENDHT_PUBLIC std::pair<std::string, std::string>
-splitPort(const std::string& s);
+OPENDHT_PUBLIC std::pair<std::string, std::string> splitPort(std::string_view s);
 
-class OPENDHT_PUBLIC DhtException : public std::runtime_error {
+class OPENDHT_PUBLIC DhtException : public std::runtime_error
+{
 public:
-    DhtException(const std::string &str = "") :
-        std::runtime_error("DhtException occurred: " + str) {}
+    DhtException(const std::string& str = "")
+        : std::runtime_error("DhtException occurred: " + str)
+    {}
 };
 
-class OPENDHT_PUBLIC SocketException : public DhtException {
+class OPENDHT_PUBLIC SocketException : public DhtException
+{
 public:
-    SocketException(int err) :
-        DhtException(strerror(err)) {}
+    SocketException(int err)
+        : DhtException(strerror(err))
+    {}
 };
 
 // Time related definitions and utility functions
@@ -84,61 +93,61 @@ 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.
- */
-template <class DT>
-static double
-print_dt(DT d) {
-    return std::chrono::duration_cast<std::chrono::duration<double>>(d).count();
-}
-
-template <class DT>
+template<class DT>
 static std::string
-print_duration(DT d) {
+print_duration(DT d)
+{
     if (d < std::chrono::seconds(0)) {
         return "-" + print_duration(-d);
     } else if (d < std::chrono::milliseconds(1)) {
-        return to_str(std::chrono::duration_cast<std::chrono::duration<double, std::micro>>(d).count()) +  " us";
+        return fmt::format("{:.3g} us",
+                           std::chrono::duration_cast<std::chrono::duration<double, std::micro>>(d).count());
     } else if (d < std::chrono::seconds(1)) {
-        return to_str(std::chrono::duration_cast<std::chrono::duration<double, std::milli>>(d).count()) +  " ms";
+        return fmt::format("{:.3g} ms",
+                           std::chrono::duration_cast<std::chrono::duration<double, std::milli>>(d).count());
     } else if (d < std::chrono::minutes(1)) {
-        return to_str(std::chrono::duration_cast<std::chrono::duration<double>>(d).count()) +  " s";
+        return fmt::format("{:.3g} s", std::chrono::duration_cast<std::chrono::duration<double>>(d).count());
     } else if (d < std::chrono::hours(1)) {
-        return to_str(std::chrono::duration_cast<std::chrono::duration<double, std::ratio<60>>>(d).count()) +  " min";
+        return fmt::format("{:.3g} min",
+                           std::chrono::duration_cast<std::chrono::duration<double, std::ratio<60>>>(d).count());
+    } else if (d < std::chrono::hours(72)) {
+        return fmt::format("{:.3g} h",
+                           std::chrono::duration_cast<std::chrono::duration<double, std::ratio<3600>>>(d).count());
     } else {
-        return to_str(std::chrono::duration_cast<std::chrono::duration<double, std::ratio<3600>>>(d).count()) +  " h";
+        return fmt::format("{:.3g} days",
+                           std::chrono::duration_cast<std::chrono::duration<double, std::ratio<86400>>>(d).count());
     }
 }
 
-template <class TimePoint>
+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");
+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> {
+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>;
     using param_type = typename Base::param_type;
+
 public:
-    uniform_duration_distribution(Duration min, Duration max) : Base(min.count(), max.count()) {}
-    template <class Generator>
-    Duration operator()(Generator && g) {
+    uniform_duration_distribution(Duration min, Duration max)
+        : Base(min.count(), max.count())
+    {}
+    template<class Generator>
+    Duration operator()(Generator&& g)
+    {
         return Duration(Base::operator()(g));
     }
-    template< class Generator >
-    Duration operator()( Generator && g, const param_type& params ) {
+    template<class Generator>
+    Duration operator()(Generator&& g, const param_type& params)
+    {
         return Duration(Base::operator()(g, params));
     }
 };
@@ -155,25 +164,37 @@ using Blob = std::vector<uint8_t>;
  */
 OPENDHT_PUBLIC Blob unpackBlob(const msgpack::object& o);
 
-template <typename Type>
+template<typename Type>
 Blob
-packMsg(const Type& t) {
+packMsg(const Type& t)
+{
     msgpack::sbuffer buffer;
     msgpack::packer<msgpack::sbuffer> pk(&buffer);
     pk.pack(t);
-    return {buffer.data(), buffer.data()+buffer.size()};
+    return {buffer.data(), buffer.data() + buffer.size()};
 }
 
-template <typename Type>
+template<typename Type>
 Type
-unpackMsg(Blob b) {
-    msgpack::unpacked msg_res = msgpack::unpack((const char*)b.data(), b.size());
+unpackMsg(Blob b)
+{
+    msgpack::unpacked msg_res = msgpack::unpack((const char*) b.data(), b.size());
     return msg_res.get().as<Type>();
 }
 
 msgpack::unpacked unpackMsg(Blob b);
 
-msgpack::object* findMapValue(const msgpack::object& map, const char* key);
-msgpack::object* findMapValue(const msgpack::object& map, const std::string& key);
+msgpack::object* findMapValue(const msgpack::object& map, const char* key, size_t length);
+
+inline msgpack::object*
+findMapValue(const msgpack::object& map, const char* key)
+{
+    return findMapValue(map, key, strlen(key));
+}
+inline msgpack::object*
+findMapValue(const msgpack::object& map, std::string_view key)
+{
+    return findMapValue(map, key.data(), key.size());
+}
 
 } // namespace dht

include/opendht/value.h

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2020 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2025 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>
@@ -42,8 +43,9 @@
 #endif
 
 namespace dht {
+using namespace std::literals;
 
-static const std::string VALUE_KEY_ID("id");
+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");
@@ -88,18 +90,19 @@ using StorePolicy = std::function<bool(InfoHash key, std::shared_ptr<Value>& val
 using EditPolicy = std::function<bool(InfoHash key, const std::shared_ptr<Value>& old_val, std::shared_ptr<Value>& new_val, const InfoHash& from, const SockAddr& addr)>;
 
 static constexpr const size_t MAX_VALUE_SIZE {1024 * 64};
+static constexpr const duration DEFAULT_VALUE_EXPIRATION {std::chrono::minutes(10)};
 
-struct OPENDHT_PUBLIC ValueType {
+struct ValueType {
     typedef uint16_t Id;
 
-    static bool DEFAULT_STORE_POLICY(InfoHash, const std::shared_ptr<Value>& v, const InfoHash&, const SockAddr&);
-    static bool DEFAULT_EDIT_POLICY(InfoHash, const std::shared_ptr<Value>&, std::shared_ptr<Value>&, const InfoHash&, const SockAddr&) {
+    OPENDHT_PUBLIC static bool DEFAULT_STORE_POLICY(InfoHash, const std::shared_ptr<Value>& v, const InfoHash&, const SockAddr&);
+    static inline bool DEFAULT_EDIT_POLICY(InfoHash, const std::shared_ptr<Value>&, std::shared_ptr<Value>&, const InfoHash&, const SockAddr&) {
         return false;
     }
 
     ValueType () {}
 
-    ValueType (Id id, std::string name, duration e = std::chrono::minutes(10))
+    ValueType (Id id, std::string name, duration e = DEFAULT_VALUE_EXPIRATION)
     : id(id), name(name), expiration(e) {}
 
     ValueType (Id id, std::string name, duration e, StorePolicy sp, EditPolicy ep = DEFAULT_EDIT_POLICY)
@@ -112,12 +115,12 @@ struct OPENDHT_PUBLIC ValueType {
     }
 
     // Generic value type
-    static const ValueType USER_DATA;
+    OPENDHT_PUBLIC static const ValueType USER_DATA;
 
 
     Id id {0};
     std::string name {};
-    duration expiration {60 * 10};
+    duration expiration {DEFAULT_VALUE_EXPIRATION};
     StorePolicy storePolicy {DEFAULT_STORE_POLICY};
     EditPolicy editPolicy {DEFAULT_EDIT_POLICY};
 };
@@ -135,8 +138,6 @@ private:
     std::map<ValueType::Id, ValueType> types {};
 };
 
-struct CryptoValueCache;
-
 /**
  * A "value" is data potentially stored on the Dht, with some metadata.
  *
@@ -169,29 +170,29 @@ 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)
@@ -200,18 +201,18 @@ 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))
@@ -226,52 +227,51 @@ 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;
         };
     }
@@ -342,10 +342,10 @@ 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();
     }
 
@@ -354,37 +354,24 @@ 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() {}
 
@@ -439,7 +426,7 @@ struct OPENDHT_PUBLIC Value
     /**
      * Returns true if value contents are equals (not considering the value ID)
      */
-    inline bool contentEquals(const Value& o) {
+    inline bool contentEquals(const Value& o) const {
         return isEncrypted() ? cypher == o.cypher :
             ((owner == o.owner || (owner and o.owner and *owner == *o.owner))
                 && type == o.type
@@ -448,22 +435,25 @@ struct OPENDHT_PUBLIC Value
                 && signature == o.signature);
     }
 
-    inline bool operator== (const Value& o) {
+    inline bool operator== (const Value& o) const {
         return id == o.id and contentEquals(o);
     }
+    inline bool operator!= (const Value& o) const {
+        return !(*this == o);
+    }
 
-    void setRecipient(const InfoHash& r) {
+    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);
@@ -473,7 +463,7 @@ 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);
@@ -483,8 +473,8 @@ struct OPENDHT_PUBLIC Value
     /** print value for debugging */
     OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const Value& v);
 
-    std::string toString() const {
-        std::stringstream ss;
+    inline std::string toString() const {
+        std::ostringstream ss;
         ss << *this;
         return ss.str();
     }
@@ -595,7 +585,7 @@ 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).
@@ -637,8 +627,16 @@ struct OPENDHT_PUBLIC Value
      */
     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};
@@ -660,7 +658,7 @@ 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;
 
@@ -673,9 +671,9 @@ 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:
@@ -697,12 +695,12 @@ struct OPENDHT_PUBLIC FieldValue
         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
@@ -742,7 +740,7 @@ private:
 struct OPENDHT_PUBLIC Select
 {
     Select() { }
-    Select(const std::string& q_str);
+    Select(std::string_view q_str);
 
     bool isSatisfiedBy(const Select& os) const;
 
@@ -775,7 +773,7 @@ struct OPENDHT_PUBLIC Select
     }
 
     std::string toString() const {
-        std::stringstream ss;
+        std::ostringstream ss;
         ss << *this;
         return ss.str();
     }
@@ -797,7 +795,7 @@ private:
 struct OPENDHT_PUBLIC Where
 {
     Where() { }
-    Where(const std::string& q_str);
+    Where(std::string_view q_str);
 
     bool isSatisfiedBy(const Where& where) const;
 
@@ -808,11 +806,11 @@ 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);
     }
 
     /**
@@ -822,11 +820,11 @@ 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);
     }
 
     /**
@@ -836,11 +834,11 @@ 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);
     }
 
     /**
@@ -850,11 +848,11 @@ 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);
     }
 
     /**
@@ -864,11 +862,11 @@ 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);
     }
 
     /**
@@ -877,7 +875,10 @@ 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_) {
@@ -895,7 +896,7 @@ struct OPENDHT_PUBLIC Where
     }
 
     std::string toString() const {
-        std::stringstream ss;
+        std::ostringstream ss;
         ss << *this;
         return ss.str();
     }
@@ -937,11 +938,11 @@ 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);
     }
@@ -961,12 +962,12 @@ struct OPENDHT_PUBLIC Query
     void msgpack_unpack(const msgpack::object& o);
 
     std::string toString() const {
-        std::stringstream ss;
+        std::ostringstream ss;
         ss << *this;
         return ss.str();
     }
 
-    OPENDHT_PUBLIC friend std::ostream& operator<<(std::ostream& s, const dht::Query& q) {
+    friend std::ostream& operator<<(std::ostream& s, const dht::Query& q) {
         return s << "Query[" << q.select << " " << q.where << "]";
     }
 

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
+
+]])

meson.build

@@ -0,0 +1,319 @@
+project(
+    'opendht',
+    'c',
+    'cpp',
+    'cython',
+    version: '3.6.0',
+    meson_version: '>=1.1.0',
+    default_options: ['cpp_std=c++17', 'warning_level=3'],
+)
+
+gnutls = dependency('gnutls')
+nettle = dependency('nettle')
+msgpack = dependency('msgpack-cxx', required: false)
+argon2 = dependency('libargon2')
+fmt = dependency('fmt')
+openssl = dependency('openssl', required: get_option('proxy_client'))
+jsoncpp = dependency('jsoncpp', required: get_option('proxy_client'))
+llhttp = dependency('llhttp', 'libllhttp', required: get_option('proxy_client'))
+simdutf = dependency('simdutf', required: get_option('proxy_client'))
+io_uring = host_machine.system() == 'linux' ? dependency('liburing', required: false) : disabler()
+
+deps = [
+    fmt,
+    gnutls,
+    nettle,
+    msgpack,
+    argon2,
+    openssl,
+    jsoncpp,
+    simdutf,
+    llhttp,
+    io_uring,
+]
+conf_data = configuration_data()
+
+add_project_arguments('-DMSGPACK_NO_BOOST', '-DASIO_STANDALONE', language: 'cpp')
+if io_uring.found()
+    add_project_arguments('-DASIO_HAS_IO_URING', '-DASIO_DISABLE_EPOLL', language: 'cpp')
+    conf_data.set('iouring_lib', ', liburing')
+endif
+add_project_arguments(
+    [
+        '-Wno-return-type',
+        '-Wno-deprecated',
+        '-Wnon-virtual-dtor',
+        '-pedantic-errors',
+        '-fvisibility=hidden',
+    ],
+    language: 'cpp',
+)
+
+opendht_inc = include_directories('include/opendht')
+opendht_interface_inc = include_directories('include', is_system: true)
+opendht_src = [
+    'src/utils.cpp',
+    'src/crypto.cpp',
+    'src/default_types.cpp',
+    'src/node.cpp',
+    'src/value.cpp',
+    'src/dht.cpp',
+    'src/callbacks.cpp',
+    'src/routing_table.cpp',
+    'src/node_cache.cpp',
+    'src/network_engine.cpp',
+    'src/securedht.cpp',
+    'src/dhtrunner.cpp',
+    'src/log.cpp',
+    'src/op_cache.cpp',
+    'src/network_utils.cpp',
+    'src/thread_pool.cpp',
+]
+
+if get_option('indexation').enabled()
+    opendht_src += 'src/indexation/pht.cpp'
+    add_project_arguments('-DOPENDHT_INDEXATION', language: 'cpp')
+endif
+if jsoncpp.found()
+    opendht_src += ['src/base64.cpp']
+    add_project_arguments('-DOPENDHT_JSONCPP', language: 'cpp')
+    conf_data.set('jsoncpp_lib', ', jsoncpp')
+endif
+if llhttp.found()
+    opendht_src += ['src/http.cpp', 'src/compat/os_cert.cpp']
+    if host_machine.system() == 'darwin'
+        deps += dependency('appleframeworks', modules: ['CoreFoundation', 'Security'])
+    endif
+    conf_data.set('http_lib', '-lllhttp')
+endif
+if openssl.found()
+    conf_data.set('openssl_lib', ', openssl')
+endif
+if get_option('proxy_client').enabled()
+    opendht_src += ['src/dht_proxy_client.cpp']
+    add_project_arguments('-DOPENDHT_PROXY_CLIENT', language: 'cpp')
+endif
+if get_option('proxy_server').enabled()
+    opendht_src += 'src/dht_proxy_server.cpp'
+    add_project_arguments('-DOPENDHT_PROXY_SERVER', language: 'cpp')
+endif
+if get_option('push_notifications').enabled()
+    add_project_arguments('-DOPENDHT_PUSH_NOTIFICATIONS', language: 'cpp')
+endif
+if get_option('peer_discovery').enabled()
+    opendht_src += 'src/peer_discovery.cpp'
+    add_project_arguments('-DOPENDHT_PEER_DISCOVERY', language: 'cpp')
+endif
+opendht = library(
+    'opendht',
+    opendht_src,
+    include_directories: opendht_inc,
+    dependencies: deps,
+    cpp_args: ['-DOPENDHT_BUILD', '-Dopendht_EXPORTS'],
+    install: true,
+)
+
+conf_data.set('VERSION', meson.project_version())
+conf_data.set('prefix', get_option('prefix'))
+conf_data.set('exec_prefix', get_option('prefix'))
+conf_data.set('libdir', join_paths(get_option('prefix'), get_option('libdir')))
+conf_data.set('includedir', join_paths(get_option('prefix'), get_option('includedir')))
+conf_data.set('argon2_lib', ', libargon2')
+conf_data.set('simdutf_lib', ', simdutf')
+
+configure_file(
+    input: 'opendht.pc.in',
+    output: 'opendht.pc',
+    configuration: conf_data,
+    install: true,
+    install_dir: join_paths(get_option('prefix'), get_option('libdir'), 'pkgconfig'),
+)
+
+readline = meson.get_compiler('c').find_library('readline', required: get_option('tools'))
+
+if get_option('c').enabled()
+    opendht_c = library(
+        'opendht-c',
+        ['c/opendht.cpp', 'c/opendht_c.h'],
+        include_directories: opendht_interface_inc,
+        link_with: opendht,
+        dependencies: [msgpack, jsoncpp, fmt],
+        cpp_args: ['-DOPENDHT_C_BUILD', '-Dopendht_c_EXPORTS'],
+        install: true,
+    )
+
+    configure_file(
+        input: 'opendht-c.pc.in',
+        output: 'opendht-c.pc',
+        configuration: conf_data,
+        install: true,
+        install_dir: join_paths(get_option('prefix'), get_option('libdir'), 'pkgconfig'),
+    )
+
+    if get_option('tools').enabled()
+        dhtcnode = executable(
+            'dhtcnode',
+            'tools/dhtcnode.c',
+            include_directories: ['c', opendht_interface_inc],
+            link_with: opendht_c,
+            dependencies: [readline],
+            install: true,
+        )
+    endif
+endif
+
+if get_option('python').require(
+    get_option('indexation').enabled(),
+    error_message: 'python requires indexation',
+).allowed()
+    py = import('python').find_installation()
+    dep_py = py.dependency()
+    py.extension_module(
+        'opendht',
+        'python/opendht.pyx',
+        include_directories: opendht_interface_inc,
+        override_options: ['cython_language=cpp'],
+        link_with: [opendht],
+        dependencies: [msgpack, jsoncpp, fmt, dep_py],
+        install: true,
+    )
+endif
+
+if get_option('tools').enabled()
+    dhtnode = executable(
+        'dhtnode',
+        'tools/dhtnode.cpp',
+        include_directories: opendht_interface_inc,
+        link_with: opendht,
+        dependencies: [readline, jsoncpp, msgpack, fmt, openssl],
+        install: true,
+    )
+    dhtchat = executable(
+        'dhtchat',
+        'tools/dhtchat.cpp',
+        include_directories: opendht_interface_inc,
+        link_with: opendht,
+        dependencies: [readline, jsoncpp, msgpack, fmt, openssl],
+        install: true,
+    )
+    dhtscanner = executable(
+        'dhtscanner',
+        'tools/dhtscanner.cpp',
+        include_directories: opendht_interface_inc,
+        link_with: opendht,
+        dependencies: [readline, jsoncpp, msgpack, fmt, openssl],
+        install: true,
+    )
+    if llhttp.found()
+        durl = executable(
+            'durl',
+            'tools/durl.cpp',
+            include_directories: opendht_interface_inc,
+            link_with: opendht,
+            dependencies: [msgpack, openssl],
+        )
+    endif
+endif
+
+# Unit tests
+if get_option('tests').enabled()
+    cppunit = dependency('cppunit')
+
+    test_infohash = executable(
+        'test_infohash',
+        'tests/infohashtester.cpp',
+        'tests/tests_runner.cpp',
+        include_directories: opendht_interface_inc,
+        link_with: opendht,
+        dependencies: [cppunit, jsoncpp, fmt, openssl, msgpack],
+    )
+    test('Infohash', test_infohash)
+
+    test_value = executable(
+        'test_value',
+        'tests/valuetester.cpp',
+        'tests/tests_runner.cpp',
+        include_directories: opendht_interface_inc,
+        link_with: opendht,
+        dependencies: [cppunit, jsoncpp, fmt, openssl, msgpack],
+    )
+    test('Value', test_value)
+
+    test_crypto = executable(
+        'test_crypto',
+        'tests/cryptotester.cpp',
+        'tests/tests_runner.cpp',
+        include_directories: opendht_interface_inc,
+        link_with: opendht,
+        dependencies: [cppunit, jsoncpp, fmt, openssl, msgpack],
+    )
+    test('Crypto', test_crypto)
+
+    test_dhtrunner = executable(
+        'test_dhtrunner',
+        'tests/dhtrunnertester.cpp',
+        'tests/tests_runner.cpp',
+        include_directories: opendht_interface_inc,
+        link_with: opendht,
+        dependencies: [cppunit, jsoncpp, fmt, openssl, msgpack],
+    )
+    test('DhtRunner', test_dhtrunner)
+
+    test_threadpool = executable(
+        'test_threadpool',
+        'tests/threadpooltester.cpp',
+        'tests/tests_runner.cpp',
+        include_directories: opendht_interface_inc,
+        link_with: opendht,
+        dependencies: [cppunit, jsoncpp, fmt, openssl, msgpack],
+    )
+    test('ThreadPool', test_threadpool)
+
+    if get_option('proxy_client').enabled() or get_option('proxy_server').enabled()
+        test_http = executable(
+            'test_http',
+            'tests/httptester.cpp',
+            'tests/tests_runner.cpp',
+            include_directories: opendht_interface_inc,
+            link_with: opendht,
+            dependencies: [cppunit, jsoncpp, fmt, openssl, msgpack],
+        )
+        test('Http', test_http)
+    endif
+
+    if get_option('peer_discovery').enabled()
+        test_peerdiscovery = executable(
+            'test_peerdiscovery',
+            'tests/peerdiscoverytester.cpp',
+            'tests/tests_runner.cpp',
+            include_directories: opendht_interface_inc,
+            link_with: opendht,
+            dependencies: [cppunit, jsoncpp, fmt, openssl, msgpack],
+        )
+        test('PeerDiscovery', test_peerdiscovery)
+    endif
+
+    if get_option('proxy_server').enabled()
+        test_proxy = executable(
+            'test_dhtproxy',
+            'tests/dhtproxytester.cpp',
+            'tests/tests_runner.cpp',
+            include_directories: opendht_interface_inc,
+            link_with: opendht,
+            dependencies: [cppunit, jsoncpp, fmt, openssl, msgpack],
+        )
+        test('DhtProxy', test_proxy)
+
+        if get_option('long_tests').enabled()
+            test_proxystress = executable(
+                'test_dhtproxystress',
+                'tests/dhtproxy_stress_tester.cpp',
+                'tests/tests_runner.cpp',
+                include_directories: opendht_interface_inc,
+                link_with: opendht,
+                dependencies: [cppunit, jsoncpp, fmt, openssl, msgpack],
+            )
+            test('DhtProxy Stress', test_proxystress)
+        endif
+    endif
+endif

meson.options

@@ -0,0 +1,10 @@
+option('proxy_client', type : 'feature', value : 'disabled')
+option('proxy_server', type : 'feature', value : 'disabled')
+option('push_notifications', type : 'feature', value : 'disabled')
+option('peer_discovery', type : 'feature', value : 'enabled')
+option('tools', type : 'feature', value : 'enabled')
+option('c', type : 'feature', value : 'enabled')
+option('indexation', type : 'feature', value : 'enabled')
+option('python', type : 'feature', value : 'enabled')
+option('tests', type : 'feature', value : 'enabled')
+option('long_tests', type : 'feature', value : 'disabled')

opendht.pc.in

@@ -3,9 +3,10 @@ exec_prefix=@exec_prefix@
 libdir=@libdir@
 includedir=@includedir@
 Name: OpenDHT
-Description: C++14 Distributed Hash Table library
+Description: C++17 Distributed Hash Table library
 Version: @VERSION@
-Libs: -L${libdir} -lopendht
-Libs.private: @http_parser_lib@ -pthread
-Requires.private: gnutls >= 3.3, nettle >= 2.4@argon2_lib@@jsoncpp_lib@@openssl_lib@
+Libs: -L${libdir} -lopendht -lfmt
+Libs.private: @http_lib@ -pthread
+Requires: gnutls >= 3.3@jsoncpp_lib@@openssl_lib@
+Requires.private: nettle >= 2.4@argon2_lib@@llhttp_lib@@iouring_lib@@simdutf_lib@
 Cflags: -I${includedir}

python/CMakeLists.txt

@@ -1,14 +1,49 @@
-
 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)
+configure_file(README.md README.md COPYONLY)
 
-add_custom_target(python ALL
-    COMMAND python3 setup.py build
-    DEPENDS opendht opendht_cpp.pxd opendht.pyx)
+find_package(Python3 REQUIRED COMPONENTS Interpreter)
 
-install(CODE "execute_process(COMMAND python3 setup.py install --root=\$ENV{DESTDIR}/ WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})")
+add_custom_target(python
+    COMMAND ${Python3_EXECUTABLE} -m build "${CMAKE_CURRENT_BINARY_DIR}"
+    DEPENDS opendht opendht_cpp.pxd opendht.pyx pyproject.toml
+            ${CURRENT_SOURCE_DIR}/opendht/__init__.py
+            ${CURRENT_SOURCE_DIR}/opendht/aio.py)
+            
+install(CODE [[
+    if(NOT Python3_EXECUTABLE)
+        find_package(Python3 COMPONENTS Interpreter)
+    endif()
+    if(NOT Python3_EXECUTABLE)
+        message(WARNING "Skipping Python package install: Python interpreter not found.")
+    else()
+        execute_process(
+            COMMAND ${Python3_EXECUTABLE} -m pip --version
+            OUTPUT_QUIET
+            ERROR_QUIET
+            RESULT_VARIABLE _pip_check)
+        if(NOT _pip_check EQUAL 0)
+            message(WARNING "Skipping Python package install: pip not available for ${Python3_EXECUTABLE}.")
+        else()
+            execute_process(
+                COMMAND ${Python3_EXECUTABLE} -m pip install --no-deps --break-system-packages .
+                WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/python
+                OUTPUT_VARIABLE _pip_output
+                ERROR_VARIABLE _pip_error
+                RESULT_VARIABLE _pip_result)
+
+            if(_pip_result EQUAL 0)
+                message(STATUS "Successfully installed Python package")
+                message(STATUS "Output: ${_pip_output}")
+            else()
+                message(WARNING "pip install failed (code: ${_pip_result})\nOutput: ${_pip_output}\nError: ${_pip_error}")
+            endif()
+        endif()
+    endif()
+]])
 if (OPENDHT_TOOLS)
 	install(PROGRAMS tools/dhtcluster.py DESTINATION ${CMAKE_INSTALL_BINDIR} RENAME dhtcluster)
-endif()
+endif()

python/Makefile.am

@@ -2,12 +2,13 @@ if USE_CYTHON
 
 noinst_HEADERS = \
 	opendht.pyx \
-	opendht_cpp.pxd
+	opendht_cpp.pxd \
+	pyproject.toml
 
 PYTHON_INSTALL_RECORD = $(builddir)/install_record.txt
 
 pybuild.stamp:
-	LDFLAGS="-L$(top_srcdir)/src/.libs" $(PYTHON) setup.py build_ext --inplace
+	LDFLAGS="-L$(top_srcdir)/src/.libs" $(PYTHON) -m build .
 	echo stamp > pybuild.stamp
 
 CLEANFILES = pybuild.stamp
@@ -17,7 +18,8 @@ clean-local:
 	rm -rf $(builddir)/build $(builddir)/*.so $(PYTHON_INSTALL_RECORD)
 
 install-exec-local:
-	$(PYTHON) setup.py install --root=$(DESTDIR)/ --record $(PYTHON_INSTALL_RECORD)
+	$(PYTHON) -m pip install --no-deps --no-build-isolation . \
+		--root=$(DESTDIR)/ --prefix=$(prefix)
 	rm -rf $(builddir)/build
 
 if HAVE_PIP
@@ -26,4 +28,3 @@ uninstall-local:
 endif
 
 endif
-

python/README.md

@@ -0,0 +1,89 @@
+# OpenDHT
+
+OpenDHT is a lightweight Distributed Hash Table implementation providing an easy to use distributed in-memory data store.
+
+## Key Features
+
+* Lightweight and scalable, designed for large networks and small devices
+* High resilience to network disruption
+* Public key cryptography layer providing optional data signature and encryption
+* IPv4 and IPv6 support
+* Python 3 bindings
+* REST API with optional HTTP client+server with push notification support
+
+Every node in the network can read and write values to the store. Values are distributed over the network with redundancy.
+
+## Installation
+
+Install on Linux, macOS and Windows with:
+```sh
+pip install opendht
+```
+
+## Quick Example
+
+Using the simple, blocking API:
+```python
+import opendht as dht
+
+node = dht.DhtRunner()
+node.run()
+
+# Join the DHT network through any running node,
+# here using a known bootstrap node.
+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'))
+
+results = node.get(dht.InfoHash.get("unique_key"))
+for value in results:
+    print(value)
+```
+
+Or using asyncio:
+```python
+import asyncio
+import opendht.aio as dht
+
+async def dht_async_demo(key_str: str):
+    # Start a new node using an async context manager.
+    # It is also possible to call run()/await shutdown() manually.
+    async with dht.DhtRunner(
+        bootstrap=(("bootstrap.jami.net", "4222"),)
+    ) as node:
+        # compute key hash
+        key = dht.InfoHash.get(key_str)
+
+        # put data, waiting for completion
+        await node.put(key, dht.Value(b'tata data'))
+
+        # get all values at key
+        results = await node.getAll(key)
+        for value in results:
+            print(value)
+        
+        # same operation, but stream values as they come from the network
+        with node.get(key) as results:
+            async for value in results:
+                print(value)
+
+        # listen for change of values at key
+        with node.listen(key) as values:
+            async for value, expired in values:
+                print(value)
+                if value.data == b'tata data':
+                    break
+
+asyncio.run(dht_async_demo("unique_key"))
+```
+
+## Documentation
+
+For more information, examples and documentation, or to repport issues, visit: https://opendht.net
+
+## License
+
+Copyright (C) 2014-2025 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.

python/opendht.pyx

@@ -1,31 +1,24 @@
 # 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.
-# Author(s): Guillaume Roguez <guillaume.roguez@savoirfairelinux.com>
-#            Adrien Béraud <adrien.beraud@savoirfairelinux.com>
-#            Simon Désaulniers <sim.desaulniers@gmail.com>
+# Copyright (C) 2014-2025 Savoir-faire Linux Inc.
 #
-# This wrapper is written for Cython 0.22
-#
-# This file is part of OpenDHT Python Wrapper.
-#
-# OpenDHT Python Wrapper is free software:  you can redistribute it and/or modify
+# 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.
 #
-# OpenDHT Python Wrapper is distributed in the hope that it will be useful,
+# 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
+# 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 OpenDHT Python Wrapper. If not, see <https://www.gnu.org/licenses/>.
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 
 from libcpp.map cimport map as map
 from libcpp cimport bool
@@ -33,15 +26,32 @@ from libcpp.utility cimport pair
 from libcpp.string cimport string
 from libcpp.memory cimport shared_ptr
 
-from cython.parallel import parallel, prange
 from cython.operator cimport dereference as deref, preincrement as inc, predecrement as dec
 from cpython cimport ref
+from datetime import timedelta
 
 cimport opendht_cpp as cpp
 
 import threading
 
-cdef inline void lookup_callback(cpp.vector[cpp.shared_ptr[cpp.IndexValue]]* values, cpp.Prefix* p, void *user_data) with gil:
+cdef inline void _initialize_gnutls():
+    cdef int err = cpp.gnutls_global_init()
+    if err != 0:
+        print(f"Failed to initialize GnuTLS: {cpp.gnutls_strerror(err).decode()}")
+    else:
+        import atexit
+        atexit.register(_deinitialize_gnutls)
+
+cdef inline _deinitialize_gnutls():
+    cpp.gnutls_global_deinit()
+
+# Initialize GnuTLS when this module is imported
+_initialize_gnutls()
+
+def version() -> str:
+    return cpp.version().decode()
+
+cdef inline void lookup_callback(cpp.vector[cpp.shared_ptr[cpp.IndexValue]]* values, cpp.Prefix* p, void *user_data) noexcept with gil:
     cbs = <object>user_data
     if 'lookup' in cbs and cbs['lookup']:
         vals = []
@@ -51,13 +61,13 @@ cdef inline void lookup_callback(cpp.vector[cpp.shared_ptr[cpp.IndexValue]]* val
             vals.append(v)
         cbs['lookup'](vals, p.toString())
 
-cdef inline void shutdown_callback(void* user_data) with gil:
+cdef inline void shutdown_callback(void* user_data) noexcept with gil:
     cbs = <object>user_data
     if 'shutdown' in cbs and cbs['shutdown']:
         cbs['shutdown']()
     ref.Py_DECREF(cbs)
 
-cdef inline bool get_callback(shared_ptr[cpp.Value] value, void *user_data) with gil:
+cdef inline bool get_callback(shared_ptr[cpp.Value] value, void *user_data) noexcept with gil:
     cbs = <object>user_data
     cb = cbs['get']
     f = cbs['filter'] if 'filter' in cbs else None
@@ -65,7 +75,7 @@ cdef inline bool get_callback(shared_ptr[cpp.Value] value, void *user_data) with
     pv._value = value
     return cb(pv) if not f or f(pv) else True
 
-cdef inline bool value_callback(shared_ptr[cpp.Value] value, bool expired, void *user_data) with gil:
+cdef inline bool value_callback(shared_ptr[cpp.Value] value, bool expired, void *user_data) noexcept with gil:
     cbs = <object>user_data
     cb = cbs['valcb']
     f = cbs['filter'] if 'filter' in cbs else None
@@ -73,7 +83,7 @@ cdef inline bool value_callback(shared_ptr[cpp.Value] value, bool expired, void
     pv._value = value
     return cb(pv, expired) if not f or f(pv) else True
 
-cdef inline void done_callback(bool done, cpp.vector[shared_ptr[cpp.Node]]* nodes, void *user_data) with gil:
+cdef inline void done_callback(bool done, cpp.vector[shared_ptr[cpp.Node]]* nodes, void *user_data) noexcept with gil:
     node_ids = []
     for n in deref(nodes):
         h = NodeEntry()
@@ -85,7 +95,7 @@ cdef inline void done_callback(bool done, cpp.vector[shared_ptr[cpp.Node]]* node
         cbs['done'](done, node_ids)
     ref.Py_DECREF(cbs)
 
-cdef inline void done_callback_simple(bool done, void *user_data) with gil:
+cdef inline void done_callback_simple(bool done, void *user_data) noexcept with gil:
     cbs = <object>user_data
     if 'done' in cbs and cbs['done']:
         cbs['done'](done)
@@ -97,6 +107,12 @@ cdef class _WithID(object):
     def __str__(self):
         return self.getId().toString().decode()
 
+cdef class _WithPk(object):
+    def __repr__(self):
+        return "<%s '%s'>" % (self.__class__.__name__, str(self))
+    def __str__(self):
+        return self.getLongId().toString().decode()
+
 cdef class InfoHash(_WithID):
     cdef cpp.InfoHash _infohash
     def __cinit__(self, bytes str=b''):
@@ -122,19 +138,57 @@ cdef class InfoHash(_WithID):
     def toFloat(InfoHash self):
         return self._infohash.toFloat()
     @staticmethod
-    def commonBits(InfoHash a, InfoHash b):
+    def commonBits(InfoHash a, InfoHash b) -> int:
         return cpp.InfoHash.commonBits(a._infohash, b._infohash)
     @staticmethod
-    def get(str key):
+    def get(str key) -> InfoHash:
         h = InfoHash()
         h._infohash = cpp.InfoHash.get(key.encode())
         return h
     @staticmethod
-    def getRandom():
+    def getRandom() -> InfoHash:
         h = InfoHash()
         h._infohash = cpp.InfoHash.getRandom()
         return h
 
+cdef class PkId(_WithPk):
+    cdef cpp.PkId _pkid
+    def __cinit__(self, bytes str=b''):
+        self._pkid = cpp.PkId(str) if str else cpp.PkId()
+    def __bool__(PkId self):
+        return <bool>self._pkid
+    def __richcmp__(PkId self, PkId other, int op):
+        if op == 0:
+            return self._pkid < other._pkid
+        if op == 1:
+            return self._pkid < other._pkid or self._pkid == other._pkid
+        if op == 2:
+            return self._pkid == other._pkid
+        return NotImplemented
+    def getBit(PkId self, bit):
+        return self._pkid.getBit(bit)
+    def setBit(PkId self, bit, b):
+        self._pkid.setBit(bit, b)
+    def getLongId(PkId self):
+        return self
+    def toString(PkId self):
+        return self._pkid.toString()
+    def toFloat(PkId self) -> float:
+        return self._pkid.toFloat()
+    @staticmethod
+    def commonBits(PkId a, PkId b) -> int:
+        return cpp.PkId.commonBits(a._pkid, b._pkid)
+    @staticmethod
+    def get(str key) -> PkId:
+        h = PkId()
+        h._pkid = cpp.PkId.get(key.encode())
+        return h
+    @staticmethod
+    def getRandom() -> PkId:
+        h = PkId()
+        h._pkid = cpp.PkId.getRandom()
+        return h
+
 cdef class SockAddr(object):
     cdef cpp.SockAddr _addr
     def toString(SockAddr self):
@@ -157,6 +211,15 @@ cdef class SockAddr(object):
         return self.toString().decode()
     def __repr__(self):
         return "<%s '%s'>" % (self.__class__.__name__, str(self))
+    @staticmethod
+    def resolve(str host, str service=None):
+        vals = []
+        result = cpp.SockAddr.resolve(host.encode(), service.encode() if service else b'')
+        for val in result:
+            a = SockAddr()
+            a._addr = val
+            vals.append(a)
+        return vals
 
 cdef class Node(_WithID):
     cdef shared_ptr[cpp.Node] _node
@@ -215,7 +278,7 @@ cdef class Where(object):
             self._where = cpp.Where()
     def __str__(self):
         return self._where.toString().decode()
-    def isSatisfiedBy(self, Where where):
+    def isSatisfiedBy(self, Where where) -> bool:
         return self._where.isSatisfiedBy(where._where)
     def id(self, cpp.uint64_t id):
         self._where.id(id)
@@ -235,40 +298,54 @@ 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:
-        def __get__(self):
-            h = InfoHash()
-            h._infohash = self._value.get().owner.get().getId()
-            return h
-    property recipient:
-        def __get__(self):
-            h = InfoHash()
-            h._infohash = self._value.get().recipient
-            return h
-        def __set__(self, InfoHash h):
-            self._value.get().recipient = h._infohash
-    property data:
-        def __get__(self):
-            return string(<char*>self._value.get().data.data(), self._value.get().data.size())
-        def __set__(self, bytes value):
-            self._value.get().data = value
-    property user_type:
-        def __get__(self):
-            return self._value.get().user_type.decode()
-        def __set__(self, str t):
-            self._value.get().user_type = t.encode()
-    property id:
-        def __get__(self):
-            return self._value.get().id
-        def __set__(self, cpp.uint64_t value):
-            self._value.get().id = value
-    property size:
-        def __get__(self):
-            return self._value.get().size()
+    @property
+    def owner(self) -> PublicKey:
+        h = PublicKey()
+        h._key = self._value.get().owner
+        return h
+    @property
+    def recipient(self) -> InfoHash:
+        h = InfoHash()
+        h._infohash = self._value.get().recipient
+        return h
+    @recipient.setter
+    def recipient(self, InfoHash h):
+        self._value.get().recipient = h._infohash
+    @property
+    def data(self) -> bytes:
+        cdef char* data_ptr = <char*>self._value.get().data.data()
+        cdef int data_size = self._value.get().data.size()
+        return data_ptr[:data_size]
+    @data.setter
+    def data(self, bytes value):
+        self._value.get().data = value
+    @property
+    def user_type(self) -> str:
+        return self._value.get().user_type.decode()
+    @user_type.setter
+    def user_type(self, str t):
+        self._value.get().user_type = t.encode()
+    @property
+    def id(self):
+        return self._value.get().id
+    @id.setter
+    def id(self, cpp.uint64_t value):
+        self._value.get().id = value
+    @property
+    def size(self) -> int:
+        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
@@ -315,17 +392,31 @@ cdef class NodeSet(object):
     def __iter__(self):
         return NodeSetIter(self)
 
-cdef class PrivateKey(_WithID):
+cdef class PrivateKey(_WithPk):
     cdef shared_ptr[cpp.PrivateKey] _key
-    def getId(self):
+
+    def getId(self) -> InfoHash:
+        if not self._key:
+            raise ValueError("PrivateKey is not initialized")
         h = InfoHash()
-        h._infohash = self._key.get().getPublicKey().getId()
+        h._infohash = self._key.get().getSharedPublicKey().get().getId()
         return h
-    def getPublicKey(self):
+
+    def getLongId(self) -> PkId:
+        if not self._key:
+            raise ValueError("PrivateKey is not initialized")
+        id = PkId()
+        id._pkid = self._key.get().getSharedPublicKey().get().getLongId()
+        return id
+
+    def getPublicKey(self) -> PublicKey:
+        if not self._key:
+            raise ValueError("PrivateKey is not initialized")
         pk = PublicKey()
-        pk._key = self._key.get().getPublicKey()
+        pk._key = self._key.get().getSharedPublicKey()
         return pk
-    def decrypt(self, bytes dat):
+
+    def decrypt(self, bytes dat) -> bytes:
         cdef size_t d_len = len(dat)
         cdef cpp.uint8_t* d_ptr = <cpp.uint8_t*>dat
         cdef cpp.Blob indat
@@ -334,58 +425,105 @@ cdef class PrivateKey(_WithID):
         cdef char* decrypted_c_str = <char *>decrypted.data()
         cdef Py_ssize_t length = decrypted.size()
         return decrypted_c_str[:length]
-    def __str__(self):
-        return self.getId().toString().decode()
-    @staticmethod
-    def generate():
-        k = PrivateKey()
-        k._key = cpp.make_shared[cpp.PrivateKey](cpp.PrivateKey.generate())
-        return k
-    @staticmethod
-    def generateEC():
-        k = PrivateKey()
-        k._key = cpp.make_shared[cpp.PrivateKey](cpp.PrivateKey.generateEC())
-        return k
 
-cdef class PublicKey(_WithID):
-    cdef cpp.PublicKey _key
-    def getId(self):
-        h = InfoHash()
-        h._infohash = self._key.getId()
-        return h
-    def encrypt(self, bytes dat):
+    def sign(self, bytes dat) -> bytes:
+        if not self._key:
+            raise ValueError("PrivateKey is not initialized")
         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 signature = self._key.get().sign(indat)
+        cdef char* signature_c_str = <char *>signature.data()
+        cdef Py_ssize_t length = signature.size()
+        return signature_c_str[:length]
+
+    @staticmethod
+    def generate() -> PrivateKey:
+        k = PrivateKey()
+        k._key = cpp.make_shared[cpp.PrivateKey](cpp.PrivateKey.generate())
+        return k
+    @staticmethod
+    def generateEC() -> PrivateKey:
+        k = PrivateKey()
+        k._key = cpp.make_shared[cpp.PrivateKey](cpp.PrivateKey.generateEC())
+        return k
+
+cdef class PublicKey(_WithPk):
+    cdef cpp.shared_ptr[cpp.PublicKey] _key
+    def getId(self) -> InfoHash:
+        if not self._key:
+            raise ValueError("PublicKey is not initialized")
+        h = InfoHash()
+        h._infohash = self._key.get().getId()
+        return h
+
+    def getLongId(self) -> PkId:
+        if not self._key:
+            raise ValueError("PublicKey is not initialized")
+        id = PkId()
+        id._pkid = self._key.get().getLongId()
+        return id
+
+    def encrypt(self, bytes dat) -> bytes:
+        if not self._key:
+            raise ValueError("PublicKey is not initialized")
+        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.get().encrypt(indat)
         cdef char* encrypted_c_str = <char *>encrypted.data()
         cdef Py_ssize_t length = encrypted.size()
         return encrypted_c_str[:length]
 
-cdef class Certificate(_WithID):
+    def checkSignature(self, bytes dat, bytes signature) -> bool:
+        if not self._key:
+            raise ValueError("PublicKey is not initialized")
+        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 size_t s_len = len(signature)
+        cdef cpp.uint8_t* s_ptr = <cpp.uint8_t*>signature
+        cdef cpp.Blob sig
+        sig.assign(s_ptr, <cpp.uint8_t*>(s_ptr + s_len))
+        return self._key.get().checkSignature(indat, sig)
+
+cdef class Certificate(_WithPk):
     cdef shared_ptr[cpp.Certificate] _cert
     def __init__(self, bytes dat = None):
         if dat:
             self._cert = cpp.make_shared[cpp.Certificate](<cpp.string>dat)
-    def getId(self):
+    def getId(self) -> InfoHash:
+        if not self._cert:
+            raise ValueError("Certificate is not initialized")
         h = InfoHash()
-        if self._cert:
-            h._infohash = self._cert.get().getId()
+        h._infohash = self._cert.get().getId()
         return h
-    def toString(self):
+    def getLongId(self) -> PkId:
+        if not self._cert:
+            raise ValueError("Certificate is not initialized")
+        id = PkId()
+        id._pkid = self._cert.get().getLongId()
+        return id
+    def toString(self) -> str:
+        if not self._cert:
+            return ""
         return self._cert.get().toString().decode()
-    def getName(self):
-        return self._cert.get().getName()
+    def getName(self) -> str:
+        return self._cert.get().getName().decode()
     def revoke(self, PrivateKey k, Certificate c):
         self._cert.get().revoke(deref(k._key.get()), deref(c._cert.get()));
     def __bytes__(self):
-        return self._cert.get().toString() if self._cert else b''
-    property issuer:
-        def __get__(self):
+        return self._cert.get().toString().encode() if self._cert else b''
+    @property
+    def issuer(self) -> Certificate|None:
+        if self._cert and self._cert.get().issuer:
             c = Certificate()
             c._cert = self._cert.get().issuer
-            return c;
+            return c
+        return None
     @staticmethod
     def generate(PrivateKey k, str name, Identity i = Identity(), bool is_ca = False):
         c = Certificate()
@@ -427,27 +565,53 @@ cdef class Identity(object):
         i = Identity()
         i._id = cpp.generateIdentity(name.encode(), ca._id, bits)
         return i
-    property publickey:
-        def __get__(self):
-            k = PublicKey()
-            k._key = self._id.first.get().getPublicKey()
-            return k
-    property certificate:
-        def __get__(self):
-            c = Certificate()
-            c._cert = self._id.second
-            return c
-    property key:
-        def __get__(self):
-            k = PrivateKey()
-            k._key = self._id.first
-            return k
+    @property
+    def publickey(self) -> PublicKey|None:
+        if not self._id.first:
+            return None
+        k = PublicKey()
+        k._key = self._id.first.get().getSharedPublicKey()
+        return k
+    @property
+    def certificate(self) -> Certificate|None:
+        if not self._id.second:
+            return None
+        c = Certificate()
+        c._cert = self._id.second
+        return c
+    @property
+    def key(self) -> PrivateKey|None:
+        if not self._id.first:
+            return None
+        k = PrivateKey()
+        k._key = self._id.first
+        return k
+
+def aesEncrypt(bytes data, str password) -> bytes :
+    cdef size_t d_len = len(data)
+    cdef cpp.uint8_t* d_ptr = <cpp.uint8_t*>data
+    cdef cpp.Blob indat
+    indat.assign(d_ptr, <cpp.uint8_t*>(d_ptr + d_len))
+    cdef cpp.Blob encrypted = cpp.aesEncrypt(indat, password.encode())
+    cdef char* encrypted_c_str = <char *>encrypted.data()
+    cdef Py_ssize_t length = encrypted.size()
+    return encrypted_c_str[:length]
+
+def aesDecrypt(bytes data, str password) -> bytes :
+    cdef size_t d_len = len(data)
+    cdef cpp.uint8_t* d_ptr = <cpp.uint8_t*>data
+    cdef cpp.Blob indat
+    indat.assign(d_ptr, <cpp.uint8_t*>(d_ptr + d_len))
+    cdef cpp.Blob decrypted = cpp.aesDecrypt(indat, password.encode())
+    cdef char* decrypted_c_str = <char *>decrypted.data()
+    cdef Py_ssize_t length = decrypted.size()
+    return decrypted_c_str[:length]
 
 cdef class DhtConfig(object):
     cdef cpp.DhtRunnerConfig _config
     def __init__(self):
         self._config = cpp.DhtRunnerConfig()
-        self._config.threaded = True;
+        self._config.threaded = True
     def setIdentity(self, Identity id):
         self._config.dht_config.id = id._id
     def setBootstrapMode(self, bool bootstrap):
@@ -461,18 +625,41 @@ cdef class DhtConfig(object):
     def setRateLimit(self, ssize_t max_req_per_sec, ssize_t max_peer_req_per_sec):
         self._config.dht_config.node_config.max_req_per_sec = max_req_per_sec
         self._config.dht_config.node_config.max_peer_req_per_sec = max_peer_req_per_sec
+    def setProxyInfo(self, str proxy_server, str push_node_id="", str push_token="", str push_topic="", str push_platform="", str user_agent="", Certificate server_ca = Certificate()):
+        self._config.proxy_server = proxy_server.encode()
+        self._config.push_node_id = push_node_id.encode()
+        self._config.push_token = push_token.encode()
+        self._config.push_topic = push_topic.encode()
+        self._config.push_platform = push_platform.encode()
+        self._config.proxy_user_agent = user_agent.encode()
+        self._config.server_ca = server_ca._cert
+    def setPeerDiscovery(self, bool peer_discovery, bool peer_publish):
+        self._config.peer_discovery = peer_discovery
+        self._config.peer_publish = peer_publish
+    def setBound(self, SockAddr bind4, SockAddr bind6):
+        self._config.bind4 = bind4._addr
+        self._config.bind6 = bind6._addr
 
 cdef class DhtRunner(_WithID):
     cdef cpp.shared_ptr[cpp.DhtRunner] thisptr
     def __cinit__(self):
         self.thisptr.reset(new cpp.DhtRunner())
-    def getId(self):
+    def getId(self) -> InfoHash:
         h = InfoHash()
         if self.thisptr:
             h._infohash = self.thisptr.get().getId()
         return h
-    def getNodeId(self):
-        return self.thisptr.get().getNodeId().toString()
+    def getPublicKey(self) -> PublicKey:
+        if not self.thisptr:
+            raise ValueError("DhtRunner is not initialized")
+        pk = PublicKey()
+        pk._key = self.thisptr.get().getPublicKey()
+        return pk
+    def getNodeId(self) -> InfoHash:
+        h = InfoHash()
+        if self.thisptr:
+            h._infohash = self.thisptr.get().getNodeId()
+        return h
     def ping(self, SockAddr addr, done_cb=None):
         if done_cb:
             cb_obj = {'done':done_cb}
@@ -513,6 +700,8 @@ 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):
@@ -575,7 +764,8 @@ cdef class DhtRunner(_WithID):
                 while pending > 0:
                     lock.wait()
             return res
-    def put(self, InfoHash key, Value val, done_cb=None):
+
+    def put(self, InfoHash key, Value val, done_cb=None, permanent=False):
         """Publish a new value on the DHT at key.
 
         key     -- the DHT key where to put the value
@@ -585,7 +775,7 @@ cdef class DhtRunner(_WithID):
         if done_cb:
             cb_obj = {'done':done_cb}
             ref.Py_INCREF(cb_obj)
-            self.thisptr.get().put(key._infohash, val._value, cpp.bindDoneCb(done_callback, <void*>cb_obj))
+            self.thisptr.get().put(key._infohash, val._value, cpp.bindDoneCb(done_callback, <void*>cb_obj), cpp.time_point.max(), permanent)
         else:
             lock = threading.Condition()
             pending = 0
@@ -602,6 +792,76 @@ cdef class DhtRunner(_WithID):
                 while pending > 0:
                     lock.wait()
             return ok
+
+    def putSigned(self, InfoHash key, Value val, done_cb=None, permanent=False):
+        if done_cb:
+            cb_obj = {'done':done_cb}
+            ref.Py_INCREF(cb_obj)
+            self.thisptr.get().putSigned(key._infohash, val._value, cpp.bindDoneCb(done_callback, <void*>cb_obj), permanent)
+        else:
+            lock = threading.Condition()
+            pending = 0
+            ok = False
+            def tmp_done(ok_ret, nodes):
+                nonlocal pending, ok, lock
+                with lock:
+                    ok = ok_ret
+                    pending -= 1
+                    lock.notify()
+            with lock:
+                pending += 1
+                self.putSigned(key, val, done_cb=tmp_done)
+                while pending > 0:
+                    lock.wait()
+            return ok
+
+    def putEncrypted(self, InfoHash key, Value val, to, done_cb=None, bool permanent=False):
+        if to is None:
+            raise ValueError("'to' must be provided")
+        if done_cb:
+            cb_obj = {'done':done_cb}
+            ref.Py_INCREF(cb_obj)
+            try:
+                if isinstance(to, PublicKey):
+                    self.thisptr.get().putEncrypted(
+                        key._infohash, (<PublicKey>to)._key, val._value,
+                        cpp.bindDoneCb(done_callback, <void*>cb_obj), permanent
+                    )
+                elif isinstance(to, PkId):
+                    self.thisptr.get().putEncrypted(
+                        key._infohash, (<PkId>to)._pkid, val._value,
+                        cpp.bindDoneCb(done_callback, <void*>cb_obj), permanent
+                    )
+                elif isinstance(to, InfoHash):
+                    self.thisptr.get().putEncrypted(
+                        key._infohash, (<InfoHash>to)._infohash, val._value,
+                        cpp.bindDoneCb(done_callback, <void*>cb_obj), permanent
+                    )
+                else:
+                    raise TypeError("'to' must be PublicKey, PkId, or InfoHash")
+            except:
+                ref.Py_DECREF(cb_obj)
+                raise
+        else:
+            lock = threading.Condition()
+            pending = 0
+            ok = False
+            def tmp_done(ok_ret, nodes):
+                nonlocal pending, ok, lock
+                with lock:
+                    ok = ok_ret
+                    pending -= 1
+                    lock.notify()
+            with lock:
+                pending += 1
+                self.putEncrypted(key, val, to=to, done_cb=tmp_done, permanent=permanent)
+                while pending > 0:
+                    lock.wait()
+            return ok
+
+    def cancelPut(self, InfoHash key, Value val):
+        self.thisptr.get().cancelPut(key._infohash, val._value)
+
     def listen(self, InfoHash key, value_cb):
         t = ListenToken()
         t._h = key._infohash
@@ -637,9 +897,9 @@ cdef class Pht(object):
         for kk, size in key_spec.items():
             cpp_key_spec[bytes(kk, 'utf-8')] = size
         self.thisptr = new cpp.Pht(name, cpp_key_spec, dht.thisptr)
-    property MAX_NODE_ENTRY_COUNT:
-        def __get__(self):
-            return cpp.PHT_MAX_NODE_ENTRY_COUNT
+    @property
+    def MAX_NODE_ENTRY_COUNT(self):
+        return cpp.PHT_MAX_NODE_ENTRY_COUNT
     def lookup(self, key, lookup_cb=None, done_cb=None):
         """Query the Index with a specified key.
 

python/opendht/__init__.py

@@ -0,0 +1,12 @@
+"""
+Python package facade for OpenDHT.
+
+This package re-exports the Cython-built core bindings from ``opendht._core``
+to preserve the public API (e.g., ``opendht.DhtRunner``), and also exposes a
+pure-Python asyncio-friendly wrapper under ``opendht.aio``.
+"""
+
+from ._core import *  # re-export core Cython bindings
+
+__version__ = version()
+__all__ = [name for name in dir() if not name.startswith("_")]

python/opendht/aio.py

@@ -0,0 +1,293 @@
+# Copyright (C) 2014-2025 Savoir-faire Linux Inc.
+#
+# 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/>.
+from __future__ import annotations
+
+import asyncio
+from typing import Any, Callable, Iterable, List, Optional, Tuple
+
+from . import _core as _dht
+
+# Re-export core types for convenience
+from ._core import InfoHash, Value, ValueType, Where, SockAddr, PublicKey, PkId, DhtConfig, Identity
+
+
+class _Listener:
+    """Async iterator around DHT listen callback.
+
+    Yields tuples (Value, expired: bool).
+    """
+
+    __slots__ = ("_runner", "_token", "_loop", "_queue", "_closed")
+
+    def __init__(self, runner: DhtRunner, key: InfoHash) -> None:
+        self._runner = runner
+        self._loop = runner._loop
+        self._queue: asyncio.Queue[Tuple[Value, bool]] = asyncio.Queue()
+        self._closed = False
+
+        def _on_value(v: Value, expired: bool) -> bool:
+            if self._closed:
+                return False
+            self._loop.call_soon_threadsafe(self._queue.put_nowait, (v, expired))
+            return True  # continue listening
+
+        self._token = self._runner._dht.listen(key, _on_value)
+
+    def __enter__(self) -> _Listener:
+        return self
+
+    def __exit__(self, exc_type, exc, tb) -> None:
+        self.cancel()
+
+    def __aiter__(self) -> _Listener:
+        return self
+
+    async def __anext__(self) -> Tuple[Value, bool]:
+        if self._closed:
+            raise StopAsyncIteration
+        item = await self._queue.get()
+        if item is None:
+            self._closed = True
+            raise StopAsyncIteration
+        return item
+
+    def cancel(self) -> None:
+        if self._closed:
+            return
+        self._closed = True
+        try:
+            self._runner._dht.cancelListen(self._token)
+        finally:
+            # Unblock any pending __anext__
+            self._queue.put_nowait(None)
+
+
+class _GetStream:
+    """Async iterator around DHT get callback.
+
+    Yields Value instances as they are found, then ends.
+    Raises on failure.
+    """
+    __slots__ = ("_runner", "_loop", "_queue", "_closed", "_error")
+
+    def __init__(
+        self,
+        runner: DhtRunner,
+        key: InfoHash,
+        where: Optional[Where],
+        filter: Optional[Callable[[Value], bool]],
+    ) -> None:
+        self._runner = runner
+        self._loop = runner._loop
+        self._queue: asyncio.Queue[Optional[Value]] = asyncio.Queue()
+        self._closed = False
+        self._error: Optional[BaseException] = None
+
+        def _on_value(v: Value) -> bool:
+            # Called on DHT thread
+            if self._closed:
+                return False
+            self._loop.call_soon_threadsafe(self._queue.put_nowait, v)
+            return True
+
+        def _on_done(ok: bool, _nodes: Iterable[Any]) -> None:
+            # Called on DHT thread
+            if self._closed:
+                return
+            if not ok:
+                self._error = RuntimeError("DHT get failed")
+            self._loop.call_soon_threadsafe(self._queue.put_nowait, None)
+
+        self._runner._dht.get(key, _on_value, _on_done, filter, where)
+
+    def __enter__(self) -> _GetStream:
+        return self
+
+    def __exit__(self, exc_type, exc, tb) -> None:
+        self.cancel()
+
+    def __aiter__(self) -> _GetStream:
+        return self
+
+    async def __anext__(self) -> Value:
+        if self._closed:
+            raise StopAsyncIteration
+        item = await self._queue.get()
+        if item is None:
+            self._closed = True
+            if self._error is not None:
+                raise self._error
+            raise StopAsyncIteration
+        return item
+
+    def cancel(self) -> None:
+        if self._closed:
+            return
+        self._closed = True
+        # Unblock any pending __anext__
+        self._queue.put_nowait(None)
+
+
+class DhtRunner:
+    """Async wrapper around opendht.DhtRunner.
+    """
+
+    __slots__ = ("_dht", "_loop", "_config", "_bootstrap")
+
+    def __init__(
+        self,
+        *,
+        loop: Optional[asyncio.AbstractEventLoop] = None,
+        core: Optional[_dht.DhtRunner] = None,
+        config: Optional[DhtConfig] = None,
+        bootstrap: Optional[Iterable[Tuple[str, Optional[str]]]] = None,
+    ) -> None:
+        try:
+            self._loop = loop or asyncio.get_running_loop()
+        except RuntimeError:
+            self._loop = asyncio.get_event_loop()
+        self._dht = core or _dht.DhtRunner()
+        self._config = config
+        self._bootstrap = list(bootstrap) if bootstrap is not None else None
+
+    def run(
+        self,
+        id: Optional[Identity] = None,
+        is_bootstrap: bool = False,
+        port: int = 0,
+        ipv4: str = "",
+        ipv6: str = "",
+        config: Optional[DhtConfig] = None,
+    ) -> None:
+        cfg = config or self._config or DhtConfig()
+        self._dht.run(id, is_bootstrap, port, ipv4, ipv6, cfg)
+        if self._bootstrap:
+            for host, port_str in self._bootstrap:
+                self._dht.bootstrap(host, port_str)
+
+    def bootstrap(self, host: str, port: Optional[str] = None) -> None:
+        self._dht.bootstrap(host, port)
+
+    async def ping(self, addr: SockAddr) -> bool:
+        fut: asyncio.Future[bool] = self._loop.create_future()
+        self._dht.ping(addr, lambda ok: self._loop.call_soon_threadsafe(fut.set_result, bool(ok)))
+        return await fut
+
+    def get(
+        self,
+        key: InfoHash,
+        *,
+        where: Optional[Where] = None,
+        filter: Optional[Callable[[Value], bool]] = None,
+    ):
+        # Return a streaming iterator of values; it ends on completion and raises on failure.
+        return _GetStream(self, key, where, filter)
+
+    async def getAll(
+        self,
+        key: InfoHash,
+        *,
+        where: Optional[Where] = None,
+        filter: Optional[Callable[[Value], bool]] = None,
+    ) -> List[Value]:
+        """Collect all values for a key and return them as a list."""
+        results: List[Value] = []
+        async for v in self.get(key, where=where, filter=filter):
+            results.append(v)
+        return results
+
+    async def getFirst(
+        self,
+        key: InfoHash,
+        *,
+        where: Optional[Where] = None,
+        predicate: Optional[Callable[[Value], Any]] = None,
+        filter: Optional[Callable[[Value], bool]] = None,
+    ) -> Optional[Value]:
+        """Return the first value matching an (optionally async) predicate, or None."""
+        with self.get(key, where=where, filter=filter) as stream:
+            async for value in stream:
+                if predicate is None:
+                    return value
+                result = predicate(value)
+                if asyncio.iscoroutine(result):
+                    result = await result
+                if result:
+                    return value
+        return None
+
+    async def put(self, key: InfoHash, val: Value, *, permanent: bool = False) -> bool:
+        fut: asyncio.Future[bool] = self._loop.create_future()
+
+        def _done(ok: bool, _nodes: Iterable[Any]) -> None:
+            self._loop.call_soon_threadsafe(fut.set_result, bool(ok))
+
+        self._dht.put(key, val, _done, permanent)
+        return await fut
+
+    async def putSigned(self, key: InfoHash, val: Value, *, permanent: bool = False) -> bool:
+        fut: asyncio.Future[bool] = self._loop.create_future()
+
+        def _done(ok: bool, _nodes: Iterable[Any]) -> None:
+            self._loop.call_soon_threadsafe(fut.set_result, bool(ok))
+
+        self._dht.putSigned(key, val, _done, permanent)
+        return await fut
+
+    async def putEncrypted(
+        self,
+        key: InfoHash,
+        to: InfoHash | PublicKey | PkId,
+        val: Value,
+        *,
+        permanent: bool = False,
+    ) -> bool:
+        fut: asyncio.Future[bool] = self._loop.create_future()
+
+        def _done(ok: bool, _nodes: Iterable[Any]) -> None:
+            self._loop.call_soon_threadsafe(fut.set_result, bool(ok))
+
+        self._dht.putEncrypted(key, val, to, _done, permanent)
+        return await fut
+
+    def listen(self, key: InfoHash) -> _Listener:
+        return _Listener(self, key)
+
+    async def cancelListen(self, listener: _Listener) -> None:
+        await listener.cancel()
+
+    async def shutdown(self) -> None:
+        fut: asyncio.Future[None] = self._loop.create_future()
+        self._dht.shutdown(lambda: self._loop.call_soon_threadsafe(fut.set_result, None))
+        await fut
+    
+    async def join(self) -> None:
+        await asyncio.to_thread(self._dht.join)
+
+    async def __aenter__(self):
+        if not self.isRunning():
+            self.run()
+        return self
+
+    async def __aexit__(self, exc_type, exc, tb):
+        if self.isRunning():
+            try:
+                await self.shutdown()
+            finally:
+                await self.join()
+        return False
+
+    def __getattr__(self, name: str) -> Any:
+        return getattr(self._dht, name)

python/opendht_cpp.pxd

@@ -1,40 +1,37 @@
-# Copyright (c) 2015-2019 Savoir-faire Linux Inc.
-# Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
-#            Simon Désaulniers <sim.desaulniers@gmail.com>
+# Copyright (C) 2014-2025 Savoir-faire Linux Inc.
 #
-# This program is free software; you can redistribute it and/or modify
+# 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
+# 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
+# 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/>.
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
 
-from libc.stdint cimport *
+from libc.stdint cimport uint8_t, uint16_t, uint32_t, uint64_t
 from libcpp cimport bool, nullptr_t, nullptr
 from libcpp.string cimport string
 from libcpp.vector cimport vector
 from libcpp.utility cimport pair
 from libcpp.map cimport map
-from libc.string cimport const_char, const_uchar
+from libcpp.memory cimport shared_ptr, make_shared
+from libc.string cimport const_char
 
 ctypedef uint16_t in_port_t
-ctypedef unsigned short int sa_family_t;
+ctypedef unsigned short int sa_family_t
 
-cdef extern from "<memory>" namespace "std" nogil:
-    cdef cppclass shared_ptr[T]:
-        shared_ptr() except +
-        shared_ptr(T*) except +
-        T* get()
-        T operator*()
-        bool operator bool() const
-        void reset(T*)
-    shared_ptr[T] make_shared[T](...) except +
+cdef extern from "<chrono>" namespace "std::chrono" nogil:
+    cdef cppclass duration[ulong]:
+        duration() except +
+
+    cdef cppclass seconds:
+        duration seconds(uint64_t) except +
+        duration seconds()
 
 cdef extern from "<functional>" namespace "std" nogil:
     cdef cppclass hash[T]:
@@ -51,6 +48,14 @@ cdef extern from "<future>" namespace "std" nogil:
         bool valid() const
         shared_future[T] share()
 
+cdef extern from "opendht/utils.h" namespace "dht":
+    const char* version()
+    cdef cppclass time_point:
+        @staticmethod
+        time_point min() const
+        @staticmethod
+        time_point max() const
+
 cdef extern from "opendht/infohash.h" namespace "dht":
     cdef cppclass InfoHash:
         InfoHash() except +
@@ -68,6 +73,24 @@ cdef extern from "opendht/infohash.h" namespace "dht":
         bool operator==(InfoHash) const
         bool operator<(InfoHash) const
         bool operator bool() const
+    
+    cdef cppclass PkId:
+        PkId() except +
+        PkId(string s) except +
+        string toString() const
+        bool getBit(unsigned bit) const
+        void setBit(unsigned bit, bool b)
+        double toFloat() const
+        @staticmethod
+        unsigned commonBits(PkId a, PkId b)
+        @staticmethod
+        PkId get(string s)
+        @staticmethod
+        PkId getRandom()
+        bool operator==(PkId) const
+        bool operator<(PkId) const
+        bool operator bool() const
+
 
 cdef extern from "opendht/sockaddr.h" namespace "dht":
     cdef cppclass SockAddr:
@@ -80,17 +103,22 @@ cdef extern from "opendht/sockaddr.h" namespace "dht":
         bool isLoopback() const
         bool isPrivate() const
         bool isUnspecified() const
+        @staticmethod
+        vector[SockAddr] resolve(string host, string service) except +
 
 ctypedef vector[uint8_t] Blob
 
 cdef extern from "opendht/crypto.h" namespace "dht::crypto":
     ctypedef pair[shared_ptr[PrivateKey], shared_ptr[Certificate]] Identity
     cdef Identity generateIdentity(string name, Identity ca, unsigned bits)
+    cdef Blob aesEncrypt(Blob data, string password) except +
+    cdef Blob aesDecrypt(Blob encrypted, string password) except +
 
     cdef cppclass PrivateKey:
         PrivateKey()
-        PublicKey getPublicKey() const
+        shared_ptr[PublicKey] getSharedPublicKey() const
         Blob decrypt(Blob data) const
+        Blob sign(Blob data) const
         @staticmethod
         PrivateKey generate()
         @staticmethod
@@ -99,12 +127,16 @@ cdef extern from "opendht/crypto.h" namespace "dht::crypto":
     cdef cppclass PublicKey:
         PublicKey()
         InfoHash getId() const
+        PkId getLongId() const
         Blob encrypt(Blob data) const
+        bool checkSignature(Blob data, Blob signature) const
+        bool operator==(PublicKey) const
 
     cdef cppclass Certificate:
         Certificate()
         Certificate(string pem)
         InfoHash getId() const
+        PkId getLongId() const
         string toString() const
         string getName() const
         void revoke(PrivateKey key, Certificate cert)
@@ -131,7 +163,6 @@ 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 +172,7 @@ 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 +181,12 @@ 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 +
@@ -226,7 +263,21 @@ cdef extern from "opendht/dhtrunner.h" namespace "dht":
         cppclass Config:
             SecureDhtConfig dht_config
             bool threaded
+            string proxy_server
+            string push_node_id
+            string push_token
+            string push_topic
+            string push_platform
+            string proxy_user_agent
+            bool peer_discovery
+            bool peer_publish
+            shared_ptr[Certificate] server_ca
+            Identity client_identity
+            SockAddr bind4
+            SockAddr bind6
+
         InfoHash getId() const
+        shared_ptr[PublicKey] getPublicKey() const
         InfoHash getNodeId() const
         void bootstrap(const_char*, const_char*)
         void bootstrap(const SockAddr&, DoneCallbackSimple done_cb)
@@ -234,13 +285,19 @@ 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
         string getRoutingTablesLog(sa_family_t af) const
         string getSearchesLog(sa_family_t af) const
         void get(InfoHash key, GetCallback get_cb, DoneCallback done_cb, nullptr_t f, Where w)
-        void put(InfoHash key, shared_ptr[Value] val, DoneCallback done_cb)
+        void put(InfoHash key, shared_ptr[Value] val, DoneCallback done_cb, time_point created, bool permanent)
+        void putSigned(InfoHash key, shared_ptr[Value] val, DoneCallback done_cb, bool permanent) 
+        void putEncrypted(InfoHash key, InfoHash to, shared_ptr[Value] val, DoneCallback done_cb, bool permanent)
+        void putEncrypted(InfoHash key, PkId to, shared_ptr[Value] val, DoneCallback done_cb, bool permanent)
+        void putEncrypted(InfoHash key, shared_ptr[PublicKey] to, shared_ptr[Value] val, DoneCallback done_cb, bool permanent)
+        void cancelPut(InfoHash key, shared_ptr[Value] val)
         ListenToken listen(InfoHash key, ValueCallback get_cb)
         void cancelListen(InfoHash key, SharedListenToken token)
         vector[unsigned] getNodeMessageStats(bool i)
@@ -270,3 +327,8 @@ cdef extern from "opendht/indexation/pht.h" namespace "dht::indexation":
         void insert(IndexKey k, IndexValue v, DoneCallbackSimple cb)
         @staticmethod
         LookupCallback bindLookupCb(LookupCallbackRaw cb, void *user_data)
+
+cdef extern from "gnutls/gnutls.h" nogil:
+    int gnutls_global_init()
+    void gnutls_global_deinit()
+    const char* gnutls_strerror(int error)