Fix unexpected type for backend region

1. Issue: Broken QueueThread joining logic which relies on thread being
`joinable` which is unrelated to doing `join`, leading to the case where
the network thread crashes when it reaches the end of scope, due to a
`std::terminate` in the dtor of `std::thread` (throws on destruction
when unjoined). Fix: Using `std::jthread` which uses RAII to join on
destruction.
2. Issue: Slow hardware or overloaded server can cause a client to
disconnect and socket to close before `TNetwork::DisconnectClient` is
called, but `IsDisconnected()` will still be false. In this case,
`.remote_endpoint()` can fail, which throws an exception, which is not
caught and thus `std::terminate`s the server. I observed this, even
though it was only in extremely contrived scenarios, it still happened
and crashed the server. Fix: Wrapping the whole block in a try/catch.
Alternate fix would have been to pass an `error_code` but the result is
the same. This fix is not quite enough though, a later fix resolves the
remaining issue that this causes the `mClientMap` to ignore the
disconnection. Also, all paths that do `if (c.IsDisconnected())` will
fail to decrement the `mClientMap`, which isn't always the right
behavior afaik. Fixed in another fix though.
3. Issue: Connection limiting ("DDoS protection") is broken as
exceptions cause it to not decrement (and slowly fill up the
`mClientMap`) in special cases. Mutexes are locked and unlocked manually
which can (and will) lead to cases where the mutex is locked, an
exception is thrown in the subsequent line (`address().to_string()` can
throw, same with `.remote_endpoint()`, both of which are being called in
the locked context without RAII unlocking). Fix: Replace manual map and
mutex handling with a new class, `TConnectionLimiter`, and an associated
"Guard" object `TConnectionLimiter::TGuard` which uses RAII to correctly
keep track of IP-and-connection-count associations, the way the previous
code was trying to do. This works across exceptions and other weird
issues. Each connection's main thread now owns a guard, which, on
destruction, decrements the counter. This way both the per-IP limits as
well as the global limits are enforced. Also added some stats about this
to the `status` command to ensure that server owners can observe this in
action.
4. Issue: `.address().to_string()` can throw and is called even if
`accept` failed, in `TNetwork::TCPServerMain`'s accept loop. I didn't
observe this and it didn't cause crashes, but I was touching that part
anyway. Fix: Explicitly handle the error case first, then get the IP,
etc.
5. Issue: `ReadWithTimeout` spawned a new async context for each read,
and then ran that context's event loop in a new thread. This means that,
not only did every one of those reads SPAWN A THREAD(!!!), it also
started an io context, which gets an fd, so this made DDoS arguably more
effective, not less.
6. Issue: Client disconnect can race due to being done on multiple
threads (TOCTOU bug). For example `Looper` and a normal disconnect call
can happen at the same time, because they check for `is_open` which can
be true, and then change to false right after the check, causing a
segfault in asio internals. Fix: Added an atomic compare-and-swap (CAS)
mechanic that acts like a lock for the socket disconnect/close, and
adjusted other places that checked `is_open`.
8. Issue: Lua panic calls the panic handler, and if the error supplied
in the panic is not a string, or is otherwise invalid, it will trigger
another panic within the panic handler. This continues and eventually
crashes the program in one of many fun ways. Fix: Use raw lua functions
to check if the top of the stack is a string, and only then print it,
otherwise print that there was a panic and leave it at that.
9. Issue: `error()` crashes the server, due to `sol::error`'s
constructor expecting a `std::string` (`lua_tostring` or `__tostring`
meta method), which doesn't exist if the error is, for example, `nil`. I
reported this to sol2, but it might be an issue only in this older
version we're using. Fix: Fixed as part of the next issue:
10. Issue: `TLuaResult` was used/accessed from multiple threads,
including `sol::object` accessed from multiple threads. This lead to
each access of a `TLuaResult::Result` accessing the Lua stack of that
state (from outside that state's thread, which is unsafe). This
consistently lead to issues and sometimes crashes. Fix: `TLuaResult` now
always marshals results into a detached result variant. This allocates,
but this is unlikely to impact the hot paths, as most results will be
empty or have primitive types. **UPDATE 2026-04-29:** This fix caused
some other issues, so I added a result type that has no result value,
only a status. That seems to help.
11. Issue: HTTP retains a curl handle per thread and never cleans them
up. With one new thread per client, each doing an auth request at least,
this quickly exhausts all file descriptors. This manifests itself as
**dns resolutions failing**, as the server fails to open a socket to
send a DNS query. Fix: The HTTP code now retains a pool of reusable
handles, which clean up automatically via RAII. I tried to build this in
a way that doesn't modify the code too much, so I kept it global and
static.
12. Issue: Crash when accessing an expired `std::weak_ptr<TClient>`.
This can happen when we check for `.expired()`, and then `.lock()`,
which is, of course, another TOCTOU (time of check vs time of use) bug.
What youre SUPPOSED to do instead, is locking, which always returns a
`std::shared_ptr<>`, and then check `std::shared_ptr<>::operator bool`.
An expired `std::weak_ptr` will return a default-constructed
`std::shared_ptr`, which evaluates to `false` when converted to `bool`.
Fix: Replaced all uses of `.expired()` and other such checks with the
correct pattern. This was a lot of search and manual replace :D.

I used LLMs to help with writing unit-tests, but those do not compile
into the final executable anyway. If this is undesired, I'm happy to
remove that code.

---

By creating this pull request, I understand that code that is AI
generated or otherwise automatically generated may be rejected without
further discussion.
I declare that I fully understand all code I pushed into this PR, and
wrote all this code myself and own the rights to this code.

.github/FUNDING.yml

@@ -0,0 +1 @@
+patreon: BeamMP

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,28 @@
+---
+name: Bug report
+about: Create a report to help us improve
+labels: bug
+assignees: ''
+
+---
+
+**Fill out general information**
+OS (windows, linux, ...):
+BeamMP-Server Version:
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Do x ...
+2. Do y ...
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Logs**
+Please attach the `Server.log` from the run in which the issue appeared, preferably with Debug turned on in the `ServerConfig.toml`.
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,19 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+labels: feature
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. For example: "I'm always frustrated when ...".
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen. Also supply OS information if relevant, for example "*On Linux*, I would like to be able to...".
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context about the feature request here.

.github/pull_request_template.md

@@ -0,0 +1,6 @@
+Please replace this text <-> with your PR description and leave the below declarations intact.
+
+---
+
+By creating this pull request, I understand that code that is AI generated or otherwise automatically generated may be rejected without further discussion.
+I declare that I fully understand all code I pushed into this PR, and wrote all this code myself and own the rights to this code.

.github/workflows/cmake-linux.yml

@@ -1,41 +0,0 @@
-name: CMake Linux Build
-
-on: [push]
-
-env:
-  BUILD_TYPE: Release
-
-jobs:
-  linux-build:
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-      with:
-          submodules: 'true'
-
-    - name: Install Dependencies
-      run: |
-          sudo apt-get update
-          sudo apt-get install -y libz-dev rapidjson-dev liblua5.3 libssl-dev libwebsocketpp-dev
-          sudo add-apt-repository ppa:mhier/libboost-latest
-          sudo apt-get install -y libboost1.70-dev libboost1.70
-
-    - name: Create Build Environment
-      run: cmake -E make_directory ${{github.workspace}}/build-linux
-
-    - name: Configure CMake
-      shell: bash
-      working-directory: ${{github.workspace}}/build-linux
-      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DCMAKE_CXX_COMPILER=g++-10
-
-    - name: Build
-      working-directory: ${{github.workspace}}/build-linux
-      shell: bash
-      run: cmake --build . --config $BUILD_TYPE
-
-    - name: Archive artifacts
-      uses: actions/upload-artifact@v2
-      with:
-        name: BeamMP-Server-linux
-        path: ${{github.workspace}}/build-linux/BeamMP-Server

.github/workflows/cmake-windows.yml

@@ -1,45 +0,0 @@
-name: CMake Windows Build
-
-on: [push]
-
-env:
-  BUILD_TYPE: Release
-
-jobs:
-  windows-build:
-    runs-on: windows-latest
-    
-    steps:
-      - uses: actions/checkout@v2
-        with:
-            submodules: 'true'
-      
-      - name: Restore artifacts, or run vcpkg, build and cache artifacts
-        uses: lukka/run-vcpkg@main
-        id: runvcpkg
-        with:
-            vcpkgArguments: 'lua zlib rapidjson boost-beast boost-asio openssl websocketpp'
-            vcpkgDirectory: '${{ runner.workspace }}/b/vcpkg'
-            vcpkgGitCommitId: '75522bb1f2e7d863078bcd06322348f053a9e33f'
-            vcpkgTriplet: 'x64-windows-static'
-
-      - name: Create Build Environment
-        run: cmake -E make_directory ${{github.workspace}}/build-windows
-
-      - name: Configure CMake
-        shell: bash
-        working-directory: ${{github.workspace}}/build-windows
-        run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DCMAKE_TOOLCHAIN_FILE='${{ runner.workspace }}/b/vcpkg/scripts/buildsystems/vcpkg.cmake' -DVCPKG_TARGET_TRIPLET=x64-windows-static
-
-      - name: Build
-        working-directory: ${{github.workspace}}/build-windows
-        shell: bash
-        run: cmake --build . --config $BUILD_TYPE
-
-      - name: Archive artifacts
-        uses: actions/upload-artifact@v2
-        with:
-          name: BeamMP-Server.exe
-          path: ${{github.workspace}}/build-windows/Release/BeamMP-Server.exe
-
-

.github/workflows/linux.yml

@@ -0,0 +1,157 @@
+name: Linux
+
+on:
+  push:
+    branches:
+      - "develop"
+      - "minor"
+  pull_request:
+
+env:
+  VCPKG_BINARY_SOURCES: "clear;x-gha,readwrite"
+  VCPKG_FORCE_SYSTEM_BINARIES: 1
+  CMAKE_BUILD_TYPE: "Release"
+  DEBIAN_FRONTEND: "noninteractive"
+
+jobs:
+  x86_64-matrix:
+    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        include:
+          - distro: debian
+            version: 12
+          - distro: debian
+            version: 13
+          - distro: ubuntu
+            version: 22.04
+          - distro: ubuntu
+            version: 24.04
+    container:
+      image: ${{ matrix.distro }}:${{ matrix.version }}
+    steps:
+      - name: get-cmake
+        uses: lukka/get-cmake@v3.28.1
+
+      - name: Export GitHub Actions cache environment variables
+        uses: actions/github-script@v6
+        with:
+          script: |
+            core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
+            core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');
+
+      - name: Install git
+        run: |
+          apt-get update -y
+          apt-get install -y git
+
+      - uses: actions/checkout@v2
+        with:
+          submodules: "recursive"
+          fetch-depth: 0
+
+      - name: Git config safe directory
+        shell: bash
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/1.5-git-safe.sh
+
+      - name: Install Dependencies
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/1-install-deps.sh
+
+      - name: Create Build Environment
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/2-configure.sh '-DCMAKE_TOOLCHAIN_FILE=./vcpkg/scripts/buildsystems/vcpkg.cmake'
+
+      - name: Build Server
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/3-build.sh
+
+      - name: Archive server artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: BeamMP-Server.${{ matrix.distro }}.${{ matrix.version }}.x86_64
+          path: ./bin/BeamMP-Server
+
+      - name: Archive server debug info artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: debuginfo.${{ matrix.distro }}.${{ matrix.version }}.x86_64
+          path: ./bin/BeamMP-Server.debug
+
+      - name: Build Tests
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/3-build-tests.sh
+
+      - name: Install Runtime Dependencies
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/4-install-runtime-deps.sh
+
+      - name: Test
+        run: ./bin/BeamMP-Server-tests
+
+  arm64-matrix:
+    runs-on: ubuntu-22.04-arm
+    env:
+      VCPKG_DEFAULT_TRIPLET: "arm64-linux"
+    strategy:
+      matrix:
+        include:
+          - distro: debian
+            version: 12
+          - distro: debian
+            version: 13
+          - distro: ubuntu
+            version: 22.04
+          - distro: ubuntu
+            version: 24.04
+    container:
+      image: ${{ matrix.distro }}:${{ matrix.version }}
+    steps:
+      - name: get-cmake
+        uses: lukka/get-cmake@v3.28.1
+
+      - name: Export GitHub Actions cache environment variables
+        uses: actions/github-script@v6
+        with:
+          script: |
+            core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
+            core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');
+
+      - name: Install git
+        run: |
+          apt-get update -y
+          apt-get install -y git
+
+      - uses: actions/checkout@v2
+        with:
+          submodules: "recursive"
+          fetch-depth: 0
+
+      - name: Git config safe directory
+        shell: bash
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/1.5-git-safe.sh
+
+      - name: Install Dependencies
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/1-install-deps.sh
+
+      - name: Create Build Environment
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/2-configure.sh '-DCMAKE_TOOLCHAIN_FILE=./vcpkg/scripts/buildsystems/vcpkg.cmake'
+
+      - name: Build Server
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/3-build.sh
+
+      - name: Archive server artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: BeamMP-Server.${{ matrix.distro }}.${{ matrix.version }}.arm64
+          path: ./bin/BeamMP-Server
+
+      - name: Archive server debug info artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: debuginfo.${{ matrix.distro }}.${{ matrix.version }}.arm64
+          path: ./bin/BeamMP-Server.debug
+
+      - name: Build Tests
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/3-build-tests.sh
+
+      - name: Install Runtime Dependencies
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/4-install-runtime-deps.sh
+
+      - name: Test
+        run: ./bin/BeamMP-Server-tests

.github/workflows/release-build.yml

@@ -1,114 +0,0 @@
-name: Release Create & Build
-on:
-  push:
-    # Sequence of patterns matched against refs/tags
-    tags:
-    - 'v*' # Push events to matching v*, i.e. v1.0, v20.15.10
-
-env:
-  BUILD_TYPE: Release
-
-jobs:
-  create-release:
-    runs-on: ubuntu-latest
-    name: Create Release
-    outputs: 
-      upload_url: ${{ steps.create_release.outputs.upload_url }} 
-    steps:
-      - name: Create Release
-        id: create_release
-        uses: actions/create-release@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          tag_name: ${{ github.ref }}
-          release_name: ${{ github.ref }}
-          draft: false
-          prerelease: false 
-          body: |
-              Files included in this release:
-              - `BeamMP-Server.exe` is the windows build
-              - `BeamMP-Server-linux` is a ubuntu build, so you need the dependencies listed in README.md to run it. For any other distros please build from source as described in README.md.
-
-  upload-release-files-linux:
-    name: Upload Linux Release Files
-    runs-on: ubuntu-latest
-    needs: create-release
-    steps:
-      - uses: actions/checkout@v2
-        with:
-            submodules: 'true'
-
-      - name: Install Dependencies
-        run: |
-            sudo apt-get update
-            sudo apt-get install -y libz-dev rapidjson-dev liblua5.3 libssl-dev libwebsocketpp-dev
-            sudo add-apt-repository ppa:mhier/libboost-latest
-            sudo apt-get install -y libboost1.70-dev libboost1.70
-
-      - name: Create Build Environment
-        run: cmake -E make_directory ${{github.workspace}}/build-linux
-
-      - name: Configure CMake
-        shell: bash
-        working-directory: ${{github.workspace}}/build-linux
-        run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DCMAKE_CXX_COMPILER=g++-10
-
-      - name: Build
-        working-directory: ${{github.workspace}}/build-linux
-        shell: bash
-        run: cmake --build . --config $BUILD_TYPE
-
-
-      - name: Upload Release Asset
-        id: upload-release-asset 
-        uses: actions/upload-release-asset@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          upload_url: ${{ needs.create-release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps 
-          asset_path: ${{github.workspace}}/build-linux/BeamMP-Server
-          asset_name: BeamMP-Server-linux
-          asset_content_type: application/x-elf
-
-  upload-release-files-windows:
-    name: Upload Windows Release Files
-    runs-on: windows-latest
-    needs: create-release
-    steps:
-      - uses: actions/checkout@v2
-        with:
-            submodules: 'true'
-      
-      - name: Restore artifacts, or run vcpkg, build and cache artifacts
-        uses: lukka/run-vcpkg@main
-        id: runvcpkg
-        with:
-            vcpkgArguments: 'lua zlib rapidjson boost-beast boost-asio openssl websocketpp'
-            vcpkgDirectory: '${{ runner.workspace }}/b/vcpkg'
-            vcpkgGitCommitId: '75522bb1f2e7d863078bcd06322348f053a9e33f'
-            vcpkgTriplet: 'x64-windows-static'
-
-      - name: Create Build Environment
-        run: cmake -E make_directory ${{github.workspace}}/build-windows
-
-      - name: Configure CMake
-        shell: bash
-        working-directory: ${{github.workspace}}/build-windows
-        run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DCMAKE_TOOLCHAIN_FILE='${{ runner.workspace }}/b/vcpkg/scripts/buildsystems/vcpkg.cmake' -DVCPKG_TARGET_TRIPLET=x64-windows-static
-
-      - name: Build
-        working-directory: ${{github.workspace}}/build-windows
-        shell: bash
-        run: cmake --build . --config $BUILD_TYPE
-
-      - name: Upload Release Asset
-        id: upload-release-asset 
-        uses: actions/upload-release-asset@v1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          upload_url: ${{ needs.create-release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps 
-          asset_path: ${{github.workspace}}/build-windows/Release/BeamMP-Server.exe
-          asset_name: BeamMP-Server.exe
-          asset_content_type: application/vnd.microsoft.portable-executable

.github/workflows/release.yml

@@ -0,0 +1,218 @@
+name: Release Create & Build
+on:
+  push:
+    # Sequence of patterns matched against refs/tags
+    tags:
+      - "v*" # Push events to matching v*, i.e. v1.0, v20.15.10
+
+env:
+  VCPKG_BINARY_SOURCES: "clear;x-gha,readwrite"
+  CMAKE_BUILD_TYPE: "Release"
+  DEBIAN_FRONTEND: "noninteractive"
+
+jobs:
+  create-release:
+    runs-on: ubuntu-latest
+    name: Create Release
+    outputs:
+      upload_url: ${{ steps.create_release.outputs.upload_url }}
+    steps:
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: ${{ github.ref }}
+          draft: false
+          prerelease: true
+          body: |
+            Files included in this release are:
+            - `BeamMP-Server.$DISTRO.$DISTROVERSION.$ARCH` for linux builds, for example `BeamMP-Server.debian.11.x86_64` for the Debian 11 build for x86_64. All require `liblua5.3` to be installed.
+            - `BeamMP-Server.exe` for the Windows build (x86_64). You need to install the [Visual C++ Redistributables](https://aka.ms/vs/17/release/vc_redist.x64.exe) to run this.
+
+  x86_64-matrix:
+    runs-on: ubuntu-22.04
+    needs: create-release
+    strategy:
+      matrix:
+        include:
+          - distro: debian
+            version: 12
+          - distro: debian
+            version: 13
+          - distro: ubuntu
+            version: 22.04
+          - distro: ubuntu
+            version: 24.04
+    container:
+      image: ${{ matrix.distro }}:${{ matrix.version }}
+    steps:
+      - name: get-cmake
+        uses: lukka/get-cmake@v3.28.1
+
+      - name: Export GitHub Actions cache environment variables
+        uses: actions/github-script@v6
+        with:
+          script: |
+            core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
+            core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');
+
+      - name: Install git
+        run: |
+          apt-get update -y
+          apt-get install -y git
+
+      - uses: actions/checkout@v2
+        with:
+          submodules: "recursive"
+          fetch-depth: 0
+
+      - name: Git config safe directory
+        shell: bash
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/1.5-git-safe.sh
+
+      - name: Install Dependencies
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/1-install-deps.sh
+
+      - name: Create Build Environment
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/2-configure.sh '-DCMAKE_TOOLCHAIN_FILE=./vcpkg/scripts/buildsystems/vcpkg.cmake'
+
+      - name: Build Server
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/3-build.sh
+
+      - name: Upload Release Asset
+        id: upload-release-asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          asset_name: BeamMP-Server.${{ matrix.distro }}.${{ matrix.version }}.x86_64
+          upload_url: ${{ needs.create-release.outputs.upload_url }}
+          asset_path: ./bin/BeamMP-Server
+          asset_content_type: application/x-elf
+
+      - name: Upload Debug Info
+        id: upload-debug-info
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          asset_name: debuginfo.${{ matrix.distro }}.${{ matrix.version }}.x86_64
+          upload_url: ${{ needs.create-release.outputs.upload_url }}
+          asset_path: ./bin/BeamMP-Server.debug
+          asset_content_type: application/x-elf
+
+  arm64-matrix:
+    runs-on: ubuntu-22.04-arm
+    needs: create-release
+    strategy:
+      matrix:
+        include:
+          - distro: debian
+            version: 12
+          - distro: debian
+            version: 13
+          - distro: ubuntu
+            version: 22.04
+          - distro: ubuntu
+            version: 24.04
+    env:
+      VCPKG_DEFAULT_TRIPLET: "arm64-linux"
+      VCPKG_FORCE_SYSTEM_BINARIES: 1
+    container:
+      image: ${{ matrix.distro }}:${{ matrix.version }}
+    steps:
+      - name: get-cmake
+        uses: lukka/get-cmake@v3.28.1
+
+      - name: Export GitHub Actions cache environment variables
+        uses: actions/github-script@v6
+        with:
+          script: |
+            core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
+            core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');
+
+      - name: Install git
+        run: |
+          apt-get update -y
+          apt-get install -y git
+
+      - uses: actions/checkout@v2
+        with:
+          submodules: "recursive"
+          fetch-depth: 0
+
+      - name: Git config safe directory
+        shell: bash
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/1.5-git-safe.sh
+
+      - name: Install Dependencies
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/1-install-deps.sh
+
+      - name: Create Build Environment
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/2-configure.sh '-DCMAKE_TOOLCHAIN_FILE=./vcpkg/scripts/buildsystems/vcpkg.cmake'
+
+      - name: Build Server
+        run: bash ./scripts/${{ matrix.distro }}-${{ matrix.version }}/3-build.sh
+
+      - name: Upload Release Asset
+        id: upload-release-asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          asset_name: BeamMP-Server.${{ matrix.distro }}.${{ matrix.version }}.arm64
+          upload_url: ${{ needs.create-release.outputs.upload_url }}
+          asset_path: ./bin/BeamMP-Server
+          asset_content_type: application/x-elf
+
+      - name: Upload Debug Info
+        id: upload-debug-info
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          asset_name: debuginfo.${{ matrix.distro }}.${{ matrix.version }}.arm64
+          upload_url: ${{ needs.create-release.outputs.upload_url }}
+          asset_path: ./bin/BeamMP-Server.debug
+          asset_content_type: application/x-elf
+
+  upload-release-files-windows:
+    name: Build and upload Windows Release Files
+    runs-on: windows-latest
+    needs: create-release
+    env:
+      VCPKG_DEFAULT_TRIPLET: x64-windows-static
+    steps:
+      - name: Export GitHub Actions cache environment variables
+        uses: actions/github-script@v6
+        with:
+          script: |
+            core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
+            core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');
+
+      - uses: actions/checkout@v2
+        with:
+          submodules: "recursive"
+          fetch-depth: 0
+
+      - name: Create Build Environment
+        shell: bash
+        run: ./scripts/windows/1-configure.sh
+
+      - name: Build Server
+        shell: bash
+        run: bash ./scripts/windows/2-build.sh
+
+      - name: Upload Release Asset
+        id: upload-release-asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ needs.create-release.outputs.upload_url }}
+          asset_path: ./bin/Release/BeamMP-Server.exe
+          asset_name: BeamMP-Server.exe
+          asset_content_type: application/vnd.microsoft.portable-executable

.github/workflows/windows.yml

@@ -0,0 +1,49 @@
+name: Windows
+
+on:
+  push:
+    branches:
+      - 'develop'
+      - 'minor'
+  pull_request:
+
+env:
+  VCPKG_DEFAULT_TRIPLET: x64-windows-static
+  VCPKG_BINARY_SOURCES: "clear;x-gha,readwrite"
+  CMAKE_BUILD_TYPE: "Release"
+
+jobs:
+  windows-build:
+    runs-on: windows-latest
+    steps:
+      - name: Export GitHub Actions cache environment variables
+        uses: actions/github-script@v6
+        with:
+          script: |
+            core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
+            core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');
+
+      - uses: actions/checkout@v2
+        with:
+          submodules: 'recursive'
+          fetch-depth: 0
+
+      - name: Setup vcpkg
+        uses: lukka/run-vcpkg@v11
+        with:
+          runVcpkgInstall: true
+
+      - name: Create Build Environment
+        shell: bash
+        run: ./scripts/windows/1-configure.sh
+
+      - name: Build Server
+        shell: bash
+        run: bash ./scripts/windows/2-build.sh
+
+      - name: Archive server artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: BeamMP-Server-windows
+          path: ./bin/Release/BeamMP-Server.exe
+

.gitignore

@@ -1,7 +1,9 @@
 .idea/
+*.orig
 *.toml
 boost_*
 Resources
+run-in-env.sh
 ## Ignore Visual Studio temporary files, build results, and
 ## files generated by popular Visual Studio add-ons.
 ##

.gitmodules

@@ -1,15 +1,9 @@
-[submodule "include/commandline"]
-    path = include/commandline
-    url = https://github.com/lionkor/commandline
-[submodule "socket.io-client-cpp"]
-	path = socket.io-client-cpp
-	url = https://github.com/socketio/socket.io-client-cpp
-[submodule "asio"]
-	path = asio
-	url = https://github.com/chriskohlhoff/asio
-[submodule "rapidjson"]
-	path = rapidjson
-	url = https://github.com/Tencent/rapidjson
-[submodule "include/tomlplusplus"]
-	path = include/tomlplusplus
-	url = https://github.com/marzer/tomlplusplus
+[submodule "deps/commandline"]
+	path = deps/commandline
+	url = https://github.com/lionkor/commandline
+[submodule "vcpkg"]
+	path = vcpkg
+	url = https://github.com/Microsoft/vcpkg.git
+[submodule "deps/toml11"]
+	path = deps/toml11
+	url = https://github.com/ToruNiina/toml11

CMakeLists.txt

@@ -1,68 +1,238 @@
-cmake_minimum_required(VERSION 3.0)
-project(Server)
+cmake_minimum_required(VERSION 3.16 FATAL_ERROR)
 
 if (WIN32)
-    message(STATUS "MSVC -> forcing use of statically-linked runtime.")
-    STRING(REPLACE "/MD" "/MT" CMAKE_CXX_FLAGS_RELEASE ${CMAKE_CXX_FLAGS_RELEASE})
-    STRING(REPLACE "/MDd" "/MTd" CMAKE_CXX_FLAGS_DEBUG ${CMAKE_CXX_FLAGS_DEBUG})
-    #-DCMAKE_TOOLCHAIN_FILE=C:/vcpkg/scripts/buildsystems/vcpkg.cmake -DVCPKG_TARGET_TRIPLET=x64-windows-static
-    set(VcpkgRoot ${_VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET})
-    include_directories(${VcpkgRoot}/include)
-    link_directories(${VcpkgRoot}/lib)
-elseif (UNIX)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wpedantic -static-libstdc++")
-    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O0 -g")
-    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2 -s -fno-builtin")
-    if (SANITIZE)
-        message(STATUS "sanitize is ON")
-        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined,thread")
-    endif (SANITIZE)
-endif ()
+    set(VCPKG_TARGET_TRIPLET x64-windows-static)
+endif()
 
-# this has to happen before -DDEBUG since it wont compile properly with -DDEBUG
-include_directories("asio/asio/include")
-include_directories("rapidjson/include")
-include_directories("websocketpp")
-add_subdirectory("socket.io-client-cpp")
-add_subdirectory("include/commandline")
+include(cmake/Vcpkg.cmake) # needs to happen before project()
 
-set(CMAKE_CXX_STANDARD 17)
+project(
+    "BeamMP-Server" # replace this
+    VERSION 3.9.3
+)
 
-set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -DDEBUG")
+include(cmake/StandardSettings.cmake)
+include(cmake/StaticAnalyzers.cmake)
+include(cmake/Git.cmake)
 
-find_package(Boost REQUIRED COMPONENTS system thread)
+# below are options which should be changed
 
-add_executable(BeamMP-Server
-        src/main.cpp
-        include/TConsole.h src/TConsole.cpp
-        include/TServer.h src/TServer.cpp
-        include/Compat.h src/Compat.cpp
-        include/Common.h src/Common.cpp
-        include/Client.h src/Client.cpp
-        include/VehicleData.h src/VehicleData.cpp
-        include/TConfig.h src/TConfig.cpp
-        include/TLuaEngine.h src/TLuaEngine.cpp
-        include/TLuaFile.h src/TLuaFile.cpp
-        include/TResourceManager.h src/TResourceManager.cpp
-        include/THeartbeatThread.h src/THeartbeatThread.cpp
-        include/Http.h src/Http.cpp
-        #include/SocketIO.h src/SocketIO.cpp
-        include/TPPSMonitor.h src/TPPSMonitor.cpp
-        include/TNetwork.h src/TNetwork.cpp)
+### SETTINGS ###
 
-target_include_directories(BeamMP-Server PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include" "${CMAKE_CURRENT_SOURCE_DIR}/commandline")
+# add all headers (.h, .hpp) to this
+set(PRJ_HEADERS
+    include/ArgsParser.h
+    include/BoostAliases.h
+    include/Client.h
+    include/Common.h
+    include/Compat.h
+    include/Cryptography.h
+    include/CustomAssert.h
+    include/Defer.h
+    include/Environment.h
+    include/Http.h
+    include/IThreaded.h
+    include/Json.h
+    include/LuaAPI.h
+    include/RWMutex.h
+    include/SignalHandling.h
+    include/TConfig.h
+    include/TConsole.h
+    include/THeartbeatThread.h
+    include/TIoPollThread.h
+    include/TLuaEngine.h
+    include/TLuaPlugin.h
+    include/TNetwork.h
+    include/TPluginMonitor.h
+    include/TPPSMonitor.h
+    include/TResourceManager.h
+    include/TScopedTimer.h
+    include/TServer.h
+    include/VehicleData.h
+    include/Env.h
+    include/Settings.h
+    include/Profiling.h
+    include/ChronoWrapper.h
+    include/TConnectionLimiter.h
+    include/TLuaResult.h
+    include/RegionHandler.h
+)
+# add all source files (.cpp) to this, except the one with main()
+set(PRJ_SOURCES
+    src/ArgsParser.cpp
+    src/Client.cpp
+    src/Common.cpp
+    src/Compat.cpp
+    src/Http.cpp
+    src/LuaAPI.cpp
+    src/SignalHandling.cpp
+    src/TConfig.cpp
+    src/TConsole.cpp
+    src/THeartbeatThread.cpp
+    src/TIoPollThread.cpp
+    src/TLuaEngine.cpp
+    src/TLuaPlugin.cpp
+    src/TNetwork.cpp
+    src/TPluginMonitor.cpp
+    src/TPPSMonitor.cpp
+    src/TResourceManager.cpp
+    src/TScopedTimer.cpp
+    src/TServer.cpp
+    src/VehicleData.cpp
+    src/Env.cpp
+    src/Settings.cpp
+    src/Profiling.cpp
+    src/ChronoWrapper.cpp
+    src/TConnectionLimiter.cpp
+    src/TLuaResult.cpp
+    src/RegionHandler.cpp
+)
 
 find_package(Lua REQUIRED)
-target_include_directories(BeamMP-Server PUBLIC ${Boost_INCLUDE_DIRS} ${LUA_INCLUDE_DIR} "socket.io-client-cpp/src" "include/tomlplusplus")
 
+# set the source file containing main()
+set(PRJ_MAIN src/main.cpp)
+# set the source file containing the test's main
+set(PRJ_TEST_MAIN test/test_main.cpp)
+# set include paths not part of libraries
+set(PRJ_INCLUDE_DIRS ${LUA_INCLUDE_DIR})
+# set compile features (e.g. standard version)
+set(PRJ_COMPILE_FEATURES cxx_std_20)
+# set #defines (test enable/disable not included here)
+set(PRJ_DEFINITIONS CPPHTTPLIB_OPENSSL_SUPPORT)
+# add all libraries used by the project (WARNING: also set them in vcpkg.json!)
+set(PRJ_LIBRARIES
+    fmt::fmt
+    doctest::doctest
+    Threads::Threads
+    commandline_static
+    toml11::toml11
+    rapidjson
+    sol2
+    httplib::httplib
+    libzip::zip
+    OpenSSL::SSL OpenSSL::Crypto
+    CURL::libcurl
+    ${LUA_LIBRARIES}
+)
+
+# add dependency find_package calls and similar here
+find_package(fmt CONFIG REQUIRED)
 find_package(OpenSSL REQUIRED)
+find_package(doctest CONFIG REQUIRED)
+find_package(Boost REQUIRED)
+find_package(httplib CONFIG REQUIRED)
+find_package(libzip CONFIG REQUIRED)
+find_package(RapidJSON CONFIG REQUIRED)
+find_package(sol2 CONFIG REQUIRED)
+find_package(CURL CONFIG REQUIRED)
+add_subdirectory("deps/toml11")
 
-if (UNIX)
-    target_link_libraries(BeamMP-Server z pthread stdc++fs ${LUA_LIBRARIES} crypto ${OPENSSL_LIBRARIES} commandline sioclient_tls)
-elseif (WIN32)
-    include(FindLua)
-    find_package(ZLIB REQUIRED)
-    find_package(RapidJSON CONFIG REQUIRED)
-    target_include_directories(BeamMP-Server PRIVATE ${RAPIDJSON_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS})
-    target_link_libraries(BeamMP-Server PRIVATE ws2_32 ZLIB::ZLIB ${LUA_LIBRARIES} ${OPENSSL_LIBRARIES} commandline sioclient_tls)
+include_directories(include)
+
+# to enable multithreading and the Threads::Threads dependency
+include(FindThreads)
+
+### END SETTINGS ###
+
+# DONT change anything beyond this point unless you've read the cmake bible and
+# swore on it not to bonk up the ci/cd pipelines with your changes.
+
+####################
+
+
+# enables compile_commands.json for clang-related tools (such as the clang LS)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+# build release builds by default (if not specified otherwise)
+if(NOT DEFINED CMAKE_BUILD_TYPE)
+    message(NOTICE "No build type specified, defaulting to 'Release'")
+    set(CMAKE_BUILD_TYPE "Release")
+endif()
+
+if(UNIX)
+    # this will allow to use same _DEBUG macro available in both Linux as well as Windows - MSCV environment. Easy to put Debug specific code.
+    add_compile_options("$<$<CONFIG:DEBUG>:-D_DEBUG>")
+endif(UNIX)
+
+if (WIN32)
+    add_compile_definitions(_WIN32_WINNT=0x0A00)
+
+    add_compile_options("/bigobj")
+endif(WIN32)
+
+
+include(cmake/CompilerWarnings.cmake)
+
+# set MT library for msvc - this is required (says documentation)
+# linux/mac/etc should simply ignore this by default.
+set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
+
+set(PRJ_DEFINITIONS ${PRJ_DEFINITIONS}
+    PRJ_VERSION_MAJOR=${PROJECT_VERSION_MAJOR}
+    PRJ_VERSION_MINOR=${PROJECT_VERSION_MINOR}
+    PRJ_VERSION_PATCH=${PROJECT_VERSION_PATCH}
+)
+
+# build commandline manually for funky windows flags to carry over without a custom toolchain file
+add_library(commandline_static
+    deps/commandline/src/impls.h
+    deps/commandline/src/windows_impl.cpp
+    deps/commandline/src/linux_impl.cpp
+    deps/commandline/src/backends/InteractiveBackend.cpp
+    deps/commandline/src/backends/InteractiveBackend.h
+    deps/commandline/src/backends/Backend.cpp
+    deps/commandline/src/backends/Backend.h
+    deps/commandline/src/commandline.h
+    deps/commandline/src/commandline.cpp
+    deps/commandline/src/backends/BufferedBackend.cpp
+    deps/commandline/src/backends/BufferedBackend.h
+)
+
+# Ensure the commandline library uses C++11
+set_target_properties(commandline_static PROPERTIES CXX_STANDARD 11 CXX_STANDARD_REQUIRED YES)
+
+
+if (WIN32)
+    target_compile_definitions(commandline_static PRIVATE -DPLATFORM_WINDOWS=1)
+else ()
+    target_compile_definitions(commandline_static PRIVATE -DPLATFORM_LINUX=1)
 endif ()
+target_include_directories(commandline_static PUBLIC "deps/commandline/src")
+target_link_libraries(commandline_static Threads::Threads)
+# end of commandline custom build
+
+add_executable(${PROJECT_NAME} ${PRJ_HEADERS} ${PRJ_SOURCES} ${PRJ_MAIN})
+set_target_properties(${PROJECT_NAME} PROPERTIES
+    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
+    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
+    MACOSX_BUNDLE TRUE
+    WIN32_EXECUTABLE TRUE
+)
+target_include_directories(${PROJECT_NAME} PRIVATE ${PRJ_INCLUDE_DIRS})
+target_link_libraries(${PROJECT_NAME} ${PRJ_LIBRARIES})
+target_compile_features(${PROJECT_NAME} PRIVATE ${PRJ_COMPILE_FEATURES})
+target_compile_definitions(${PROJECT_NAME} PRIVATE ${PRJ_DEFINITIONS} ${PRJ_WARNINGS}
+    DOCTEST_CONFIG_DISABLE # disables all test code in the final executable
+)
+
+if(MSVC)
+    target_compile_options(${PROJECT_NAME} PUBLIC "/bigobj")
+    target_link_options(${PROJECT_NAME} PRIVATE "/SUBSYSTEM:CONSOLE")
+endif(MSVC)
+
+# setup all warnings (from cmake/CompilerWarnings.cmake)
+set_project_warnings(${PROJECT_NAME})
+
+if(${PROJECT_NAME}_ENABLE_UNIT_TESTING)
+    message(STATUS "Unit tests are enabled and will be built as '${PROJECT_NAME}-tests'")
+    add_executable(${PROJECT_NAME}-tests ${PRJ_HEADERS} ${PRJ_SOURCES} ${PRJ_TEST_MAIN})
+    target_include_directories(${PROJECT_NAME}-tests PRIVATE ${PRJ_INCLUDE_DIRS})
+    target_link_libraries(${PROJECT_NAME}-tests ${PRJ_LIBRARIES})
+    target_compile_features(${PROJECT_NAME}-tests PRIVATE ${PRJ_COMPILE_FEATURES})
+    target_compile_definitions(${PROJECT_NAME}-tests PRIVATE ${PRJ_DEFINITIONS} ${PRJ_WARNINGS})
+    set_project_warnings(${PROJECT_NAME}-tests)
+    if(MSVC)
+        target_link_options(${PROJECT_NAME}-tests PRIVATE "/SUBSYSTEM:CONSOLE")
+    endif(MSVC)
+endif()

CONTRIBUTING.md

@@ -0,0 +1,128 @@
+# Contributing to BeamMP-Server
+
+Unlike other parts of BeamMP, the BeamMP-Server does not have any dependency to the BeamNG.drive game. 
+
+To contribute *C++ code*, you'll need a MacOS, Linux or Windows PC, and intermediate to advanced knowledge of C++.
+For reference, you should know be reasonably comfortable with the STL, the concept of RAII, templates, and generally know how to read & write post-C++17 code. To contribute anything else, you won't need most of this (though it'd be helpful to have some vocabulary about computers).
+
+# Ways to Contribute
+
+## Bug Reports
+
+If you work with BeamMP-Server, either by simply using it, or even writing plugins for it, and you run into any issues, we definitely want to know about it. Please use [GitHub issues](https://github.com/BeamMP/BeamMP-Server/issues) and select the "Bug" template, read it, and fill it out accordingly.
+
+## Bug Fixes
+
+If you are interested in fixing bugs, check out the [GitHub issues](https://github.com/BeamMP/BeamMP-Server/issues). There, you can pick any issue that has nobody assigned to it. For example, some bugs which we definitely need some help with are marked with the "help wanted" tag.
+
+Once you picked a bug, you need to reproduce it. Start by following the instructions in the bug report, and don't be afraid to ask for more information or clarification on the issue itself.
+
+Refer to [getting started with the codebase](#getting-started-with-the-codebase) for more information on how to build the server. You can also ask on our [Discord server](https://discord.gg/beammp), or on IRC ([irc.libera.chat](https://web.libera.chat/), join `#beammp`).
+
+## Features
+
+If you want to add new features, please make an issue for it first or ask on our [Discord server](https://discord.gg/beammp), or on IRC ([irc.libera.chat](https://web.libera.chat/), join `#beammp`).
+
+You need to make sure the feature isn't being worked on by someone else, and aligns with the vision we have for the server.
+
+# Git Guidelines
+
+**Read this carefully. Failing to follow these rules results in your changes not being accepted**. This applies for outside contributors, members of the BeamMP development team ("BeamMP Developers"), project owners, maintainers, frequent contributors, and literally everyone else. **It applies to everyone**.
+
+## How to Commit
+
+Commit messages **MUST** (mandatory):
+
+- start with a **lower case action verb in present tense**, for example `add`, `fix`, `implement`, `refactor`, `remove`, `rename`. *Counter examples (these are bad): ~~`Fixed`, `fixing`, `added`, `removing`~~*.
+- not have a first line much longer than 70 characters.
+- explain briefly the changes made.
+- reference the issue by number, if there is an issue the commit addresses, like so: `#<number>`. Example: `#123`.
+
+If any of these are not followed, **your changes will not be accepted.**
+
+Commit messages **SHOULD** (optional, "nice to have"):
+
+- only address one "atomic" change.
+- have an empty second line, and the subsequent lines explaining the changes in more detail (if more detail is available).
+
+Commits may be squashed (via a Git "interactive rebase") in order to satisfy these rules, but history that is >1h old should not be rewritten if possible. Force pushes are ugly ;)
+
+## Pulling, Merging
+
+Do **NOT** pull with merge. This is the default git behavior for `git pull`, but creates ugly and unnecessary commit messages like `"merge origin/master into master"`. Instead, pull with rebase, for example via `git pull -r`. If you get conflicts, resolve them properly.
+
+The only acceptable merge commits are those which actually merge functionally different branches into each other, for example for merging one feature branch into another.
+
+## Workflow
+
+### Making an issue and fixing it
+
+1. Create an issue detailing the feature or bug.
+2. Assign a milestone to the issue, or wait for a maintainer to add a milestone to your issue.
+3. Fork the repository and base your work on the branch mentioned in the milestone attached to your issue (e.g. `v3.0.0 (develop)` -> `develop`).
+4. Program your feature or bug fix.
+5. Open a PR that references the issue by number in the format: `#12345`.
+6. Someone will review your PR and merge it, or ask for changes.
+
+### Fixing an existing issue
+
+1. Fork the repository and base your work on the branch mentioned in the milestone attached to your issue (e.g. `v3.0.0 (develop)` -> `develop`).
+2. Program your feature or bug fix.
+3. Open a PR that references the issue by number in the format: `#12345`.
+4. Someone will review your PR and merge it, or ask for changes.
+
+## Branches
+
+- `minor`: Minor releases, like `v1.2.3` -> `v1.3.0` or `v1.2.3` -> `v1.2.4`.
+- `develop`: Major releases, like `v1.2.3` -> `v2.0.0`, and larger feature/minor releases.
+
+## Unit tests & CI/CD
+
+We use GitHub Actions, which runs our unit-tests. PR's which fail these tests, or even fail any of our actions (which run automatically), will not be merged and require further changes until they compile, link, and all tests pass properly. If you have issues with this, feel free to ask in our [Discord server](https://discord.gg/beammp), or on IRC ([irc.libera.chat](https://web.libera.chat/), join `#beammp`)
+
+### What should I call by branch?
+
+Keep branch names **unique**, **descriptive**, and **shorter than 30 characters**. Names must be in present-tense, such as `fix-xyz`, **not** ~~`fixing-xyz`~~.
+
+We generally use *feature branches*, so we keep one branch per feature or fix.
+
+For example:
+- You want to fix issue number #123? You could call the branch `fix-123`.
+- You want to add a feature described in issue #456? You could call the branch `implement-456`.
+- You want to add a feature or fix a bug that has no issue? You should probably make an issue for it first! Or, if you're not ready for that yet, you could call it by the feature name or bug description, for example for a bug that makes cars disappear: `fix-disappearing-cars`.
+
+## Pull Requests, Code Review
+
+Once you are ready to show what you did, and get feedback on it, you open a Pull-Request on GitHub. Please make sure to pick the right branches, and a descriptive title. Mention any related issues with `#<issue number>`, for example `#123`.
+
+Make sure to explain what the PR does, what it fixes, and what needs to still be done (if anything).
+
+A BeamMP-Developer must review your code in detail, and leave a review. If this takes too long, feel free to @ a maintainer/developer, or leave another comment on the PR. It helps to say something like "Ready for review", for example.
+
+# Getting Started with the Codebase
+
+1. Look at current Pull-Requests, look at the git branches, or ask in our [Discord server](https://discord.gg/beammp), or on IRC ([irc.libera.chat](https://web.libera.chat/), join `#beammp`), in order to find out which branch you should work on to minimize conflict. See [this section on branches](#branches) for more info.
+2. Fork the repository (with that branch) on GitHub. GitHub, by default, gives you only the `master` branch when forking, so make sure you fork with other branches enabled when you want to work on a branch that isn't master (it's a checkbox when you fork).
+3. Clone the fork to your local machine.
+4. Check out the branch you want to work on (see 1.).
+5. Run `git submodule update --init --recursive`.
+6. Make a new branch for your feature or fix from the branch you are on. You can do this via `git checkout -b <branch name>`. See [this section on branches](#branches) for more info on branch naming.
+7. Install all dependencies. Those are usually listed in the `README.md` in the branch you're in, or, more reliably, in one of the files in `.github/workflows` (if you can read `yaml`).
+8. Run CMake to configure the project. You can find tutorials on this online. You will want to tell CMake to build with `CMAKE_BUILD_TYPE=Debug`, for example by passing it to CMake via the commandline switch `-DCMAKE_BUILD_TYPE=Debug`. An example invocation on Linux with GNU make would be 
+`cmake . -DCMAKE_BUILD_TYPE=Debug` . 
+9. Build the `BeamMP-Server` target to build the BeamMP-Server, or the `BeamMP-Server-tests` target to build the unit-tests (does not include a working server). In the example from 8. (on Linux), you could build with  `make BeamMP-Server`, `make -j BeamMP-Server` or `cmake --build . --parallel --target BeamMP-Server` . Or, on Windows, (in Visual Studio), you would just press some big green "run" or "debug" button.
+10. When making changes, refer to [this section on how to commit properly](#how-to-commit). Not following those guidelines will result in your changes being rejected, so please take a look.
+11. Make sure to add Unit-tests with `doctest` if you build new stuff. You can find examples all over the latest version of the codebase (search for `TEST_CASE`).
+
+# Code Guidelines
+
+## Formatting
+
+1. Use `clang-format` to format your code before committig. A `.clang-format` file is provided in the root of the repository.
+2. All identifiers, type names, function names, etc. should be `PascalCase`. Type names may also have the `T` prefix, although this is not enforced (for example `TNetwork`).
+
+## Modular code
+
+Write code that is modular and testable. Generally, if you can write a good unit-test for it, it's modular. If you can't, it's not.
+
+Don't overdo it though - sometimes its okay to just write code, do the job, be done with it. You'll get feedback on this in the code review for your PR.

LICENSE

@@ -1,2 +1,661 @@
-Copyright (c) 2019-present Anonymous275 (@Anonymous-275), Lion Kortlepel (@lionkor). BeamMP-Server code is not in the public domain and is not free software. One must be granted explicit permission by the copyright holder(s) in order to modify or distribute any part of the source or binaries. Special permission to modify the source-code is implicitly granted only for the purpose of upstreaming those changes directly to github.com/BeamMP/BeamMP-Server via a GitHub pull-request.
-Commercial usage is prohibited, unless explicit permission has been granted prior to usage.
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  Developers that use our General Public Licenses protect your rights
+with two steps: (1) assert copyright on the software, and (2) offer
+you this License which gives you legal permission to copy, distribute
+and/or modify the software.
+
+  A secondary benefit of defending all users' freedom is that
+improvements made in alternate versions of the program, if they
+receive widespread use, become available for other developers to
+incorporate.  Many developers of free software are heartened and
+encouraged by the resulting cooperation.  However, in the case of
+software used on network servers, this result may fail to come about.
+The GNU General Public License permits making a modified version and
+letting the public access it on a server without ever releasing its
+source code to the public.
+
+  The GNU Affero General Public License is designed specifically to
+ensure that, in such cases, the modified source code becomes available
+to the community.  It requires the operator of a network server to
+provide the source code of the modified version running there to the
+users of that server.  Therefore, public use of a modified version, on
+a publicly accessible server, gives the public access to the source
+code of the modified version.
+
+  An older license, called the Affero General Public License and
+published by Affero, was designed to accomplish similar goals.  This is
+a different license, not a version of the Affero GPL, but Affero has
+released a new version of the Affero GPL which permits relicensing under
+this license.
+
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+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. Remote Network Interaction; Use with the GNU General Public License.
+
+  Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+  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 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 work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero 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 Affero 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 Affero 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 Affero 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 Affero 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 Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  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 AGPL, see
+<https://www.gnu.org/licenses/>.

README.md

@@ -4,14 +4,23 @@
 [![CMake Linux Build](https://github.com/BeamMP/BeamMP-Server/workflows/CMake%20Linux%20Build/badge.svg?branch=master)](https://github.com/BeamMP/BeamMP-Server/actions?query=workflow%3A%22CMake+Linux+Build%22)
 
 This is the server for the multiplayer mod **[BeamMP](https://beammp.com/)** for the game [BeamNG.drive](https://www.beamng.com/).
-The server is the point throug which all clients communicate. You can write lua mods for the server, detailed instructions on the [BeamMP Wiki](https://wiki.beammp.com).
+The server is the point through which all clients communicate. You can write Lua mods for the server, there are detailed instructions on the [BeamMP Wiki](https://wiki.beammp.com).
+
+**For Linux, you __need__ the runtime dependencies, which are listed below under [Runtime Dependencies](#runtime-dependencies)**
+
+## Support + Contact
+
+Feel free to ask any questions via the following channels:
+
+- **Discord**: [click for invite](https://discord.gg/beammp)
+- **BeamMP Forum**: [BeamMP Forum Support](https://forum.beammp.com/c/support/33)
 
 ## Minimum Requirements
 
 These values are guesstimated and are subject to change with each release.
 
-* RAM: 50+ MiB usable (not counting OS overhead)
-* CPU: Any Hz, preferably multicore
+* RAM: 30-100 MiB usable (not counting OS overhead)
+* CPU: >1GHz, preferably multicore
 * OS: Windows, Linux (theoretically any POSIX)
 * GPU: None
 * HDD: 10 MiB + Mods/Plugins
@@ -19,21 +28,21 @@ These values are guesstimated and are subject to change with each release.
 
 ## Contributing
 
-TLDR; [Issues](https://github.com/BeamMP/BeamMP-Server/issues) with the "help wanted" label or with nobody assigned, any [trello](https://trello.com/b/Kw75j3zZ/beamngdrive-multiplayer) cards in the "To-Do" column.
+TLDR; [Issues](https://github.com/BeamMP/BeamMP-Server/issues) with the "help wanted" or "good first issue" label or with nobody assigned.
 
-To contribute, look at the active [issues](https://github.com/BeamMP/BeamMP-Server/issues) and at the [trello](https://trello.com/b/Kw75j3zZ/beamngdrive-multiplayer). Any issues that have the "help wanted" label or don't have anyone assigned and any trello cards that aren't assigned or in the "In-Progress" section are good tasks to take on. You can either contribute by programming or by testing and adding more info and ideas.
+To contribute, look at the active [issues](https://github.com/BeamMP/BeamMP-Server/issues). Any issues that have the "help wanted" label or don't have anyone assigned are good tasks to take on. You can either contribute by programming or by testing and adding more info and ideas.
 
 Fork this repository, make a new branch for your feature, implement your feature or fix, and then create a pull-request here. Even incomplete features and fixes can be pull-requested.
 
-If you need support with understanding the codebase, please write us in the discord. You'll need to be proficient in modern C++.
+If you need support with understanding the codebase, please write us in the Discord. You'll need to be proficient in modern C++.
 
 ## About Building from Source
 
-We only allow building unmodified (original) source code for public use. `master` is considered **unstable** and we will not provide technical support if such a build doesn't work, so always build from a tag. You can checkout a tag with `git checkout tags/TAGNAME`, where `TAGNAME` is the tag, for example `v1.20`. 
+We only allow building unmodified (original) source code for public use. `master` is considered **unstable** and we will not provide technical support if such a build doesn't work, so always build from a tag. You can checkout a tag with `git checkout tags/TAGNAME`, where `TAGNAME` is the tag, for example `v3.4.1`. See [the tags](https://github.com/BeamMP/BeamMP-Server/tags) for possible versions/tags, as well as [the releases](https://github.com/BeamMP/BeamMP-Server/releases) to check which version is marked as a release/prerelease. We recommend using the [latest release](https://github.com/BeamMP/BeamMP-Server/releases/latest).
 
 ## Supported Operating Systems
 
-The code itself supports (latest stable) Linux and Windows. In terms of actual build support, for now we usually only distribute windows binaries and sometimes linux. For any other distro or OS, you just have to find the same libraries listed in the Linux Build [Prerequisites](#prerequisites) further down the page, and it should build fine. We don't currently support any big-endian architectures.
+The code itself supports (latest stable) Linux, Windows and FreeBSD. In terms of actual build support, for now we usually only distribute Windows binaries and Linux. For any other distro or OS, you just have to find the same libraries listed in [Runtime Dependencies](#runtime-dependencies) further down the page, and it should build fine.
 
 Recommended compilers: MSVC, GCC, CLANG. 
 
@@ -41,54 +50,46 @@ You can find precompiled binaries under [Releases](https://github.com/BeamMP/Bea
 
 ## Build Instructions
 
-**__Do not compile from `master`. Always build from a release tag, i.e. `tags/v2.0`!__**
+On Linux, you need some dependencies to **build** the server (on Windows, you don't):
 
-Currently only linux and windows are supported (generally). See [Releases](https://github.com/BeamMP/BeamMP-Server/releases/) for official binary releases. On systems to which we do not provide binaries (so anything but windows), you are allowed to compile the program and use it. Other restrictions, such as not being allowed to distribute those binaries, still apply (see [copyright notice](#copyright)).
+```
+liblua5.3-dev curl zip unzip tar cmake make git g++
+```
 
-### Prerequisites
+You can install these with your distribution's package manager. You will need sudo or need root for ONLY this step.
 
-#### Windows
+The names of each package may change depending on your platform.
 
-Please use the prepackaged binaries in [Releases](https://github.com/BeamMP/BeamMP-Server/releases/).
+If you are building for ARM (like aarch64), you need to run `export VCPKG_FORCE_SYSTEM_BINARIES=1` before the following commands.
 
-Dependencies for windows can be installed with `vcpkg`, in which case the current dependencies are the `x64-windows-static` versions of `lua`, `zlib`, `rapidjson`, `boost-beast`, `boost-asio` and `openssl`.
+You can build on **Windows, Linux** or other platforms by following these steps:
 
-#### Linux / \*nix
+1. Check out the repository with git: `git clone --recursive https://github.com/BeamMP/BeamMP-Server`.
+2. Go into the directory `cd BeamMP-Server`.
+3. Specify the server version to build by checking out a tag: `git checkout tags/v3.4.1` - [Possible versions/tags](https://github.com/BeamMP/BeamMP-Server/tags)
+4. Run CMake `cmake -S . -B bin -DCMAKE_BUILD_TYPE=Release` - this can take a few minutes and may take a lot of disk space and bandwidth.
+5. Build via `cmake --build bin --parallel --config Release -t BeamMP-Server`.
+6. Your executable can be found in `bin/`.
 
-These package names are in the debian / ubuntu style. Feel free to PR your own guide for a different distro.
+When you make changes to the code, you only have to run step 4 again.
+### Building for FreeBSD
+Building is only supported for major release branches of FreeBSD that are currently not EOL. The build process is the same as on Linux, although build dependencies can be universally installed from ports via pkg:
+```
+pkg install git cmake-core zip bash devel/ninja devel/pkgconf lua53
+```
+After installing the necessary build dependencies, follow the Linux build instructions beginning from step 3. Beware that running the initial cmake command will compile vcpkg from source, as vcpkg has no native FreeBSD port - this may take some time.
 
-- `git`
-- `make`
-- `cmake`
-- `g++`
-  
-  Must support ISO C++17. If your distro's `g++` doesn't support C++17, chances are that it has a `g++-8` or `g++-10` package that does. If this is the case. you just need to run CMake with `-DCMAKE_CXX_COMPILER=g++-10` (replace `g++-10` with your compiler's name).
-- `liblua5.3` 
-  
-  Any 5.x version should work, but 5.3 is what we officially use. Any other version might break in the future.
-  You can also use any version of `libluajit`, but the same applies regarding the version.
-- `libz-dev`
-- `rapidjson-dev`
-- `libopenssl-dev`
+On systems with a single logical CPU core, `make` may fail to build the server when using the `--parallel` option when calling CMake. If you see error messages related to make, simply omit the `--parallel` from the command: `cmake --build bin --config Release -t BeamMP-Server`.
 
-**If** you're building it from source, you'll need `libboost1.70-dev` as well.
+### Runtime Dependencies
 
-### How to build
+These are needed to *run* the server.
 
-On windows. use git-bash for these commands.
+Debian, Ubuntu and friends: `liblua5.3-0`
 
-1. Make sure you have all [prerequisites](#prerequisites) installed
-2. Clone the repository in a location of your choice with `git clone --recursive https://github.com/BeamMP/BeamMP-Server`
-3. Checkout the branch of the release you want to compile (`master` is often unstable), for example `git checkout tags/v1.20` for version 1.20.
-4. `cd` into it with `cd BeamMP-Server`
-5. Run `cmake .` (with `.`)
-6. Run `make`
-7. You will now have a `BeamMP-Server` file in your directory, which is executable with `./BeamMP-Server` (`.\BeamMP-Server.exe` for windows). Follow the (windows or linux, doesnt matter) instructions on the [wiki](https://wiki.beammp.com/en/home/Server_Mod) for further setup after installation (which we just did), such as port-forwarding and getting a key to actually run the server.
+Other Linux distros: `liblua` of *some kind*.
 
-*tip: to run the server in the background, simply (in bash, zsh, etc) run:* `nohup ./BeamMP-Server &`*.*
+Windows: No libraries.
 
-## Copyright
-
-Copyright (c) 2019-present Anonymous275 (@Anonymous-275), Lion Kortlepel (@lionkor).
-BeamMP-Server code is not in the public domain and is not free software. One must be granted explicit permission by the copyright holder(s) in order to modify or distribute any part of the source or binaries. Special permission to modify the source-code is implicitly granted only for the purpose of upstreaming those changes directly to github.com/BeamMP/BeamMP-Server via a GitHub pull-request.
-Commercial usage is prohibited, unless explicit permission has been granted prior to usage.
+## Support
+The BeamMP project is supported by community donations via our [Patreon](https://www.patreon.com/BeamMP). This brings perks such as Patreon-only channels on our Discord, early access to new updates, and more server keys. 

cmake/CompilerWarnings.cmake

@@ -0,0 +1,114 @@
+# from here:
+#
+# https://github.com/lefticus/cppbestpractices/blob/master/02-Use_the_Tools_Available.md
+# Courtesy of Jason Turner
+# License here: https://github.com/cpp-best-practices/cppbestpractices/blob/master/LICENSE
+#
+# This version has been modified by the owners of the current respository.
+# Modifications have mostly been marked with "modified" or similar, though this is not
+# strictly required.
+
+function(set_project_warnings project_name)
+    set(MSVC_WARNINGS
+            /W4         # Baseline reasonable warnings
+            /w14242 # 'identifier': conversion from 'type1' to 'type1', possible loss
+                            # of data
+            /w14254 # 'operator': conversion from 'type1:field_bits' to
+                            # 'type2:field_bits', possible loss of data
+            /w14263 # 'function': member function does not override any base class
+                            # virtual member function
+            /w14265 # 'classname': class has virtual functions, but destructor is not
+                            # virtual instances of this class may not be destructed correctly
+            /w14287 # 'operator': unsigned/negative constant mismatch
+            /we4289 # nonstandard extension used: 'variable': loop control variable
+                            # declared in the for-loop is used outside the for-loop scope
+            /w14296 # 'operator': expression is always 'boolean_value'
+            /w14311 # 'variable': pointer truncation from 'type1' to 'type2'
+            /w14545 # expression before comma evaluates to a function which is missing
+                            # an argument list
+            /w14546 # function call before comma missing argument list
+            /w14547 # 'operator': operator before comma has no effect; expected
+                            # operator with side-effect
+            /w14549 # 'operator': operator before comma has no effect; did you intend
+                            # 'operator'?
+            /w14555 # expression has no effect; expected expression with side- effect
+            /w14619 # pragma warning: there is no warning number 'number'
+            /w14640 # Enable warning on thread un-safe static member initialization
+            /w14826 # Conversion from 'type1' to 'type_2' is sign-extended. This may
+                            # cause unexpected runtime behavior.
+            /w14905 # wide string literal cast to 'LPSTR'
+            /w14906 # string literal cast to 'LPWSTR'
+            /w14928 # illegal copy-initialization; more than one user-defined
+                            # conversion has been implicitly applied
+            /permissive- # standards conformance mode for MSVC compiler.
+    )
+
+    set(CLANG_WARNINGS
+            -Wall
+            -Wextra    # reasonable and standard
+            -Wshadow # warn the user if a variable declaration shadows one from a
+                             # parent context
+            -Wnon-virtual-dtor # warn the user if a class with virtual functions has a
+                                                 # non-virtual destructor. This helps catch hard to
+                                                 # track down memory errors
+            -Wold-style-cast # warn for c-style casts
+            -Wcast-align         # warn for potential performance problem casts
+            -Wunused                 # warn on anything being unused
+            -Woverloaded-virtual # warn if you overload (not override) a virtual
+                                                     # function
+            -Wpedantic     # warn if non-standard C++ is used
+            -Wconversion # warn on type conversions that may lose data
+            -Wsign-conversion    # warn on sign conversions
+            -Wnull-dereference # warn if a null dereference is detected
+            -Wdouble-promotion # warn if float is implicit promoted to double
+            -Wformat=2 # warn on security issues around functions that format output
+                                 # (ie printf)
+            # modified; added more errors / warnings
+            # some have been set to be errors, but the option _WARNINGS_AS_ERRORS
+            # (see below) should still be used in strict pipelines.
+            -Werror=uninitialized
+            -Werror=float-equal
+            -Werror=write-strings
+            -Werror=strict-aliasing -fstrict-aliasing
+            -Werror=missing-declarations
+            -Werror=missing-field-initializers
+            -Werror=ctor-dtor-privacy
+            -Wswitch-default
+            -Werror=unused-result
+            -Werror=implicit-fallthrough
+            -Werror=return-type
+            -Wmissing-include-dirs
+    )
+
+    if (${PROJECT_NAME}_WARNINGS_AS_ERRORS)
+        set(CLANG_WARNINGS ${CLANG_WARNINGS} -Werror)
+        set(MSVC_WARNINGS ${MSVC_WARNINGS} /WX)
+    endif()
+
+    set(GCC_WARNINGS
+            ${CLANG_WARNINGS}
+            -Wmisleading-indentation # warn if indentation implies blocks where blocks
+                                                             # do not exist
+            -Wduplicated-cond # warn if if / else chain has duplicated conditions
+            -Wduplicated-branches # warn if if / else branches have duplicated code
+            -Wlogical-op     # warn about logical operations being used where bitwise were
+                                         # probably wanted
+            # -Wuseless-cast # warn if you perform a cast to the same type (modified: removed)
+    )
+
+    if(MSVC)
+        set(PRJ_WARNINGS ${MSVC_WARNINGS})
+    elseif(CMAKE_CXX_COMPILER_ID MATCHES ".*Clang")
+        set(PRJ_WARNINGS ${CLANG_WARNINGS})
+    elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+        set(PRJ_WARNINGS ${GCC_WARNINGS})
+    else()
+        message(AUTHOR_WARNING "No compiler warnings set for '${CMAKE_CXX_COMPILER_ID}' compiler.")
+    endif()
+
+    target_compile_options(${project_name} PUBLIC ${PRJ_WARNINGS})
+
+    if(NOT TARGET ${project_name})
+        message(AUTHOR_WARNING "${project_name} is not a target, thus no compiler warning were added.")
+    endif()
+endfunction()

cmake/Git.cmake

@@ -0,0 +1,21 @@
+find_package(Git)
+if(${PROJECT_NAME}_CHECKOUT_GIT_SUBMODULES)
+    if(Git_FOUND)
+        message(STATUS "Git found, submodule update and init")
+        execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init
+                        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+                        RESULT_VARIABLE GIT_SUBMOD_RESULT)
+        if(NOT GIT_SUBMOD_RESULT EQUAL "0")
+            message(SEND_ERROR "git submodule update --init --recursive failed with ${GIT_SUBMOD_RESULT}, please checkout submodules. This may result in missing dependencies.")
+        endif()
+    else()
+        message(SEND_ERROR "git required for checking out submodules, but not found. Submodules will not be checked out - this may result in missing dependencies.")
+    endif()
+endif()
+
+if(Git_FOUND)
+
+else()
+    message(STATUS "Git not found - the version will not include a git hash.")
+    set(PRJ_GIT_HASH "unknown")
+endif()

cmake/StandardSettings.cmake

@@ -0,0 +1,44 @@
+# Modified, original version from https://github.com/filipdutescu/modern-cpp-template (Unlicense)
+
+option(${PROJECT_NAME}_WARNINGS_AS_ERRORS "Treat compiler warnings as errors." OFF)
+option(${PROJECT_NAME}_CHECKOUT_GIT_SUBMODULES "If git is found, initialize all submodules." ON)
+option(${PROJECT_NAME}_ENABLE_UNIT_TESTING "Enable unit tests for the projects (from the `test` subfolder)." ON)
+option(${PROJECT_NAME}_ENABLE_CLANG_TIDY "Enable static analysis with Clang-Tidy." OFF)
+option(${PROJECT_NAME}_ENABLE_CPPCHECK "Enable static analysis with Cppcheck." OFF)
+# TODO Implement code coverage
+# option(${PROJECT_NAME}_ENABLE_CODE_COVERAGE "Enable code coverage through GCC." OFF)
+option(${PROJECT_NAME}_ENABLE_DOXYGEN "Enable Doxygen documentation builds of source." OFF)
+
+# Generate compile_commands.json for clang based tools
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+# Export all symbols when building a shared library
+if(BUILD_SHARED_LIBS)
+    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS OFF)
+    set(CMAKE_CXX_VISIBILITY_PRESET hidden)
+    set(CMAKE_VISIBILITY_INLINES_HIDDEN 1)
+endif()
+
+option(${PROJECT_NAME}_ENABLE_LTO "Enable Interprocedural Optimization, aka Link Time Optimization (LTO)." OFF)
+if(${PROJECT_NAME}_ENABLE_LTO)
+    include(CheckIPOSupported)
+    check_ipo_supported(RESULT result OUTPUT output)
+    if(result)
+        set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
+    else()
+        message(SEND_ERROR "IPO is not supported: ${output}.")
+    endif()
+endif()
+
+option(${PROJECT_NAME}_ENABLE_CCACHE "Enable the usage of Ccache, in order to speed up rebuild times." ON)
+find_program(CCACHE_FOUND ccache)
+if(CCACHE_FOUND)
+    set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
+    set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
+endif()
+
+option(${PROJECT_NAME}_ENABLE_SANITIZER "Enable sanitizer to detect memory errors, undefined behavior, etc. (slows down the executable)." OFF)
+if(${PROJECT_NAME}_ENABLE_SANITIZER)
+    add_compile_options(-fsanitize=address,undefined)
+    add_link_options(-fsanitize=address,undefined)
+endif()

cmake/StaticAnalyzers.cmake

@@ -0,0 +1,20 @@
+if(${PROJECT_NAME}_ENABLE_CLANG_TIDY)
+  find_program(CLANGTIDY clang-tidy)
+  if(CLANGTIDY)
+    set(CMAKE_CXX_CLANG_TIDY ${CLANGTIDY} -extra-arg=-Wno-unknown-warning-option)
+    message("Clang-Tidy finished setting up.")
+  else()
+    message(SEND_ERROR "Clang-Tidy requested but executable not found.")
+  endif()
+endif()
+
+if(${PROJECT_NAME}_ENABLE_CPPCHECK)
+  find_program(CPPCHECK cppcheck)
+  if(CPPCHECK)
+    set(CMAKE_CXX_CPPCHECK ${CPPCHECK} --suppress=missingInclude --enable=all
+                           --inline-suppr --inconclusive)
+    message("Cppcheck finished setting up.")
+  else()
+    message(SEND_ERROR "Cppcheck requested but executable not found.")
+  endif()
+endif()

cmake/Vcpkg.cmake

@@ -0,0 +1,19 @@
+if(NOT DEFINED CMAKE_TOOLCHAIN_FILE)
+    if(NOT EXISTS ${CMAKE_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake)
+        find_package(Git)
+        if(Git_FOUND)
+            execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive vcpkg
+                            WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+                            RESULT_VARIABLE GIT_SUBMOD_RESULT)
+            if(NOT GIT_SUBMOD_RESULT EQUAL "0")
+                message(SEND_ERROR "Checking out vcpkg in source tree failed with ${GIT_SUBMOD_RESULT}.")
+            endif()
+        else()
+            message(FATAL_ERROR "Could not find git or vcpkg.cmake. Please either, install git and re-run cmake (or run `git submodule update --init --recursive`), or install vcpkg and add `-DCMAKE_TOOLCHAIN_FILE=<path-to-vcpkg>/scripts/buildsystems/vcpkg.cmake` to your cmake invocation. Please try again after making those changes.")
+        endif()
+    endif()
+    set(CMAKE_TOOLCHAIN_FILE ${CMAKE_SOURCE_DIR}/vcpkg/scripts/buildsystems/vcpkg.cmake)
+endif()
+
+# ensure SOL2 safeties are all ON
+add_compile_definitions(SOL_ALL_SAFETIES_ON=1)

include/ArgsParser.h

@@ -0,0 +1,67 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <initializer_list>
+#include <optional>
+#include <string>
+#include <string_view>
+#include <vector>
+
+/*
+ * Allows syntax:
+ *  --help              : long flags
+ *  --path=/home/lion   : long assignments
+ */
+class ArgsParser {
+public:
+    enum Flags : int {
+        NONE = 0,
+        REQUIRED = 1, // argument is required
+        HAS_VALUE = 2, // argument must have a value
+    };
+
+    ArgsParser() = default;
+
+    void Parse(const std::vector<std::string_view>& ArgList);
+    // prints errors if any errors occurred, in that case also returns false
+    bool Verify();
+    void RegisterArgument(std::vector<std::string>&& ArgumentNames, int Flags);
+    // pass all possible names for this argument (short, long, etc)
+    bool FoundArgument(const std::vector<std::string>& Names);
+    std::optional<std::string> GetValueOfArgument(const std::vector<std::string>& Names);
+
+private:
+    void ConsumeLongAssignment(const std::string& Arg);
+    void ConsumeLongFlag(const std::string& Arg);
+    bool IsRegistered(const std::string& Name);
+
+    struct Argument {
+        std::string Name;
+        std::optional<std::string> Value;
+    };
+
+    struct RegisteredArgument {
+        std::vector<std::string> Names;
+        int Flags;
+    };
+
+    std::vector<RegisteredArgument> mRegisteredArguments;
+    std::vector<Argument> mFoundArgs;
+};

include/BoostAliases.h

@@ -0,0 +1,24 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <boost/asio.hpp>
+#include <boost/system/error_code.hpp>
+
+using namespace boost::asio;

include/ChronoWrapper.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#include <chrono>
+#include <string>
+
+namespace ChronoWrapper {
+std::chrono::high_resolution_clock::duration TimeFromStringWithLiteral(const std::string& time_str);
+}

include/Client.h

@@ -1,17 +1,49 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
+#include <atomic>
 #include <chrono>
 #include <memory>
+#include <optional>
 #include <queue>
 #include <string>
 #include <unordered_set>
+#include <utility>
 
+#include "BoostAliases.h"
 #include "Common.h"
 #include "Compat.h"
 #include "VehicleData.h"
 
 class TServer;
 
+#ifdef BEAMMP_WINDOWS
+// for socklen_t
+#include <WS2tcpip.h>
+#endif // WINDOWS
+
+struct TConnection final {
+    ip::tcp::socket Socket;
+    ip::tcp::endpoint SockAddr;
+};
+
 class TClient final {
 public:
     using TSetOfVehicleData = std::vector<TVehicleData>;
@@ -21,27 +53,34 @@ public:
         std::unique_lock<std::mutex> Lock;
     };
 
-    explicit TClient(TServer& Server);
+    TClient(TServer& Server, ip::tcp::socket&& Socket);
     TClient(const TClient&) = delete;
+    ~TClient();
     TClient& operator=(const TClient&) = delete;
 
-    void AddNewCar(int Ident, const std::string& Data);
-    void SetCarData(int Ident, const std::string& Data);
+    void AddNewCar(int Ident, const nlohmann::json& Data);
+    void SetCarData(int Ident, const nlohmann::json& Data);
+    void SetCarPosition(int Ident, const std::string& Data);
     TVehicleDataLockPair GetAllCars();
     void SetName(const std::string& Name) { mName = Name; }
     void SetRoles(const std::string& Role) { mRole = Role; }
-    void AddIdentifier(const std::string& ID) { mIdentifiers.insert(ID); };
-    std::string GetCarData(int Ident);
-    void SetUDPAddr(sockaddr_in Addr) { mUDPAddress = Addr; }
-    void SetDownSock(SOCKET CSock) { mSocket[1] = CSock; }
-    void SetTCPSock(SOCKET CSock) { mSocket[0] = CSock; }
-    void SetStatus(int Status) { mStatus = Status; }
+    void SetIdentifier(const std::string& key, const std::string& value) { mIdentifiers[key] = value; }
+    nlohmann::json GetCarData(int Ident);
+    std::string GetCarPositionRaw(int Ident);
+    void SetUDPAddr(const ip::udp::endpoint& Addr) { mUDPAddress = Addr; }
+    void SetTCPSock(ip::tcp::socket&& CSock) { mSocket = std::move(CSock); }
+    // Returns true only for the thread that actually performs socket shutdown/close.
+    [[nodiscard]] bool Disconnect(std::string_view Reason);
+    bool IsDisconnected() const {
+        return mDisconnectState.load(std::memory_order_acquire) != EDisconnectState::Connected;
+    }
     // locks
     void DeleteCar(int Ident);
-    [[nodiscard]] std::set<std::string> GetIdentifiers() const { return mIdentifiers; }
-    [[nodiscard]] sockaddr_in GetUDPAddr() const { return mUDPAddress; }
-    [[nodiscard]] SOCKET GetDownSock() const { return mSocket[1]; }
-    [[nodiscard]] SOCKET GetTCPSock() const { return mSocket[0]; }
+    [[nodiscard]] const std::unordered_map<std::string, std::string>& GetIdentifiers() const { return mIdentifiers; }
+    [[nodiscard]] const ip::udp::endpoint& GetUDPAddr() const { return mUDPAddress; }
+    [[nodiscard]] ip::udp::endpoint& GetUDPAddr() { return mUDPAddress; }
+    [[nodiscard]] ip::tcp::socket& GetTCPSock() { return mSocket; }
+    [[nodiscard]] const ip::tcp::socket& GetTCPSock() const { return mSocket; }
     [[nodiscard]] std::string GetRoles() const { return mRole; }
     [[nodiscard]] std::string GetName() const { return mName; }
     void SetUnicycleID(int ID) { mUnicycleID = ID; }
@@ -49,46 +88,59 @@ public:
     [[nodiscard]] int GetOpenCarID() const;
     [[nodiscard]] int GetCarCount() const;
     void ClearCars();
-    [[nodiscard]] int GetStatus() const { return mStatus; }
     [[nodiscard]] int GetID() const { return mID; }
     [[nodiscard]] int GetUnicycleID() const { return mUnicycleID; }
-    [[nodiscard]] bool IsConnected() const { return mIsConnected; }
+    [[nodiscard]] bool IsUDPConnected() const { return mIsUDPConnected; }
     [[nodiscard]] bool IsSynced() const { return mIsSynced; }
     [[nodiscard]] bool IsSyncing() const { return mIsSyncing; }
     [[nodiscard]] bool IsGuest() const { return mIsGuest; }
     void SetIsGuest(bool NewIsGuest) { mIsGuest = NewIsGuest; }
     void SetIsSynced(bool NewIsSynced) { mIsSynced = NewIsSynced; }
     void SetIsSyncing(bool NewIsSyncing) { mIsSyncing = NewIsSyncing; }
-    void EnqueuePacket(const std::string& Packet);
-    [[nodiscard]] std::queue<std::string>& MissedPacketQueue() { return mPacketsSync; }
-    [[nodiscard]] const std::queue<std::string>& MissedPacketQueue() const { return mPacketsSync; }
+    void EnqueuePacket(const std::vector<uint8_t>& Packet);
+    [[nodiscard]] std::queue<std::vector<uint8_t>>& MissedPacketQueue() { return mPacketsSync; }
+    [[nodiscard]] const std::queue<std::vector<uint8_t>>& MissedPacketQueue() const { return mPacketsSync; }
     [[nodiscard]] size_t MissedPacketQueueSize() const { return mPacketsSync.size(); }
     [[nodiscard]] std::mutex& MissedPacketQueueMutex() const { return mMissedPacketsMutex; }
-    void SetIsConnected(bool NewIsConnected) { mIsConnected = NewIsConnected; }
+    void SetIsUDPConnected(bool NewIsConnected) { mIsUDPConnected = NewIsConnected; }
     [[nodiscard]] TServer& Server() const;
     void UpdatePingTime();
     int SecondsSinceLastPing();
+    void SetMagic(std::vector<uint8_t> magic) { mMagic = std::move(magic); }
+    [[nodiscard]] const std::vector<uint8_t>& GetMagic() const { return mMagic; }
 
 private:
+    enum class EDisconnectState {
+        Connected,
+        Disconnecting,
+        Disconnected
+    };
+
     void InsertVehicle(int ID, const std::string& Data);
 
     TServer& mServer;
-    bool mIsConnected = false;
+    bool mIsUDPConnected = false;
     bool mIsSynced = false;
     bool mIsSyncing = false;
     mutable std::mutex mMissedPacketsMutex;
-    std::queue<std::string> mPacketsSync;
-    std::set<std::string> mIdentifiers;
+    std::queue<std::vector<uint8_t>> mPacketsSync;
+    std::unordered_map<std::string, std::string> mIdentifiers;
     bool mIsGuest = false;
-    std::mutex mVehicleDataMutex;
+    mutable std::mutex mVehicleDataMutex;
+    mutable std::mutex mVehiclePositionMutex;
     TSetOfVehicleData mVehicleData;
+    SparseArray<std::string> mVehiclePosition;
     std::string mName = "Unknown Client";
-    SOCKET mSocket[2] { SOCKET(0), SOCKET(0) };
-    sockaddr_in mUDPAddress {}; // is this initialization OK? yes it is
+    // Once disconnect starts, this client is terminal and its socket must be treated as dead.
+    std::atomic<EDisconnectState> mDisconnectState { EDisconnectState::Connected };
+    ip::tcp::socket mSocket;
+    ip::udp::endpoint mUDPAddress {};
     int mUnicycleID = -1;
     std::string mRole;
     std::string mDID;
-    int mStatus = 0;
     int mID = -1;
-    std::chrono::time_point<std::chrono::high_resolution_clock> mLastPingTime;
+    std::chrono::time_point<std::chrono::high_resolution_clock> mLastPingTime = std::chrono::high_resolution_clock::now();
+    std::vector<uint8_t> mMagic;
 };
+
+std::optional<std::weak_ptr<TClient>> GetClient(class TServer& Server, int ID);

include/Common.h

@@ -1,13 +1,58 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
+#include <algorithm>
+#include <array>
 #include <atomic>
+#include <cstring>
 #include <deque>
+#include <filesystem>
+#include <fmt/format.h>
 #include <functional>
 #include <memory>
 #include <mutex>
+#include <shared_mutex>
+#include <span>
+#include <sstream>
+#include <unordered_map>
+#include <zlib.h>
 
+#include <doctest/doctest.h>
+#include <filesystem>
+namespace fs = std::filesystem;
+
+#include "Settings.h"
 #include "TConsole.h"
 
+struct Version {
+    uint8_t major;
+    uint8_t minor;
+    uint8_t patch;
+    Version(uint8_t major, uint8_t minor, uint8_t patch);
+    Version(const std::array<uint8_t, 3>& v);
+    std::string AsString();
+};
+
+template <typename T>
+using SparseArray = std::unordered_map<size_t, T>;
+
 // static class handling application start, shutdown, etc.
 // yes, static classes, singletons, globals are all pretty
 // bad idioms. In this case we need a central way to access
@@ -16,30 +61,7 @@
 class Application final {
 public:
     // types
-    struct TSettings {
-        TSettings() noexcept
-            : ServerName("BeamMP Server")
-            , ServerDesc("BeamMP Default Description")
-            , Resource("Resources")
-            , MapName("/levels/gridmap/info.json")
-            , MaxPlayers(10)
-            , Private(false)
-            , MaxCars(1)
-            , DebugModeEnabled(false)
-            , Port(30814) { }
-        std::string ServerName;
-        std::string ServerDesc;
-        std::string Resource;
-        std::string MapName;
-        std::string Key;
-        int MaxPlayers;
-        bool Private;
-        int MaxCars;
-        bool DebugModeEnabled;
-        int Port;
-        std::string CustomIP;
-        [[nodiscard]] bool HasCustomIP() const { return !CustomIP.empty(); }
-    };
+
     using TShutdownHandler = std::function<void()>;
 
     // methods
@@ -49,75 +71,210 @@ public:
     static void RegisterShutdownHandler(const TShutdownHandler& Handler);
     // Causes all threads to finish up and exit gracefull gracefully
     static void GracefullyShutdown();
-    static TConsole& Console() { return *mConsole; }
-    static std::string ServerVersion() { return "2.1.1"; }
-    static std::string ClientVersion() { return "2.0"; }
+    static TConsole& Console() { return mConsole; }
+    static std::string ServerVersionString();
+    static const Version& ServerVersion() { return mVersion; }
+    static Version ClientMinimumVersion() { return Version { 2, 7, 0 }; }
     static std::string PPS() { return mPPS; }
-    static void SetPPS(std::string NewPPS) { mPPS = NewPPS; }
+    static void SetPPS(const std::string& NewPPS) { mPPS = NewPPS; }
 
-    static inline TSettings Settings {};
+    static inline struct Settings Settings { };
 
-    static std::string GetBackendUrlForAuth() { return "auth.beammp.com"; }
-    static std::string GetBackendHostname() { return "backend.beammp.com"; }
-    static std::string GetBackendUrlForSocketIO() { return "https://backend.beammp.com"; }
+    static std::vector<std::string> GetBackendUrlsInOrder();
+
+    static std::string GetServerCheckUrl();
+
+    static std::string GetBackendUrlForAuth();
+    static std::string GetBackendUrlForSocketIO();
+    static void CheckForUpdates();
+    static std::array<uint8_t, 3> VersionStrToInts(const std::string& str);
+    static bool IsOutdated(const Version& Current, const Version& Newest);
+    static bool IsShuttingDown();
+    static void SleepSafeSeconds(size_t Seconds);
+
+    static void InitializeConsole() {
+        mConsole.InitializeCommandline();
+    }
+
+    enum class Status {
+        Starting,
+        Good,
+        Bad,
+        ShuttingDown,
+        Shutdown,
+    };
+
+    using SystemStatusMap = std::unordered_map<std::string /* system name */, Status /* status */>;
+
+    static const SystemStatusMap& GetSubsystemStatuses() {
+        std::unique_lock Lock(mSystemStatusMapMutex);
+        return mSystemStatusMap;
+    }
+
+    static void SetSubsystemStatus(const std::string& Subsystem, Status status);
 
 private:
+    static void SetShutdown(bool Val);
+
+    static inline SystemStatusMap mSystemStatusMap {};
+    static inline std::mutex mSystemStatusMapMutex {};
     static inline std::string mPPS;
-    static std::unique_ptr<TConsole> mConsole;
+    static inline TConsole mConsole;
+    static inline std::shared_mutex mShutdownMtx {};
+    static inline bool mShutdown { false };
     static inline std::mutex mShutdownHandlersMutex {};
     static inline std::deque<TShutdownHandler> mShutdownHandlers {};
+    static inline int mTLDIndex { 0 };
+    static inline std::vector<std::string> mValidTLDs {"beammp.com", "beammp.ru"};
+
+    static inline Version mVersion { 3, 9, 3 };
 };
 
-std::string ThreadName();
-void RegisterThread(const std::string str);
+/// Used to static_assert in std::visit
+template<class>
+inline constexpr bool AlwaysFalseV = false;
+
+void SplitString(std::string const& str, const char delim, std::vector<std::string>& out);
+std::string LowerString(std::string str);
+
+std::string ThreadName(bool DebugModeOverride = false);
+void RegisterThread(const std::string& str);
 #define RegisterThreadAuto() RegisterThread(__func__)
 
-#define KB 1024
-#define MB (KB * 1024)
+#define KB 1024llu
+#define MB (KB * 1024llu)
+#define GB (MB * 1024llu)
 
 #define _file_basename std::filesystem::path(__FILE__).filename().string()
 #define _line std::to_string(__LINE__)
 #define _in_lambda (std::string(__func__) == "operator()")
 
-// we would like the full function signature 'void a::foo() const'
-// on windows this is __FUNCSIG__, on GCC it's __PRETTY_FUNCTION__,
-// feel free to add more
-#if defined(WIN32)
-#define _function_name std::string(__FUNCSIG__)
-#elif defined(__unix) || defined(__unix__)
-#define _function_name std::string(__PRETTY_FUNCTION__)
-#else
-#define _function_name std::string(__func__)
-#endif
+// for those times when you just need to ignore something :^)
+// explicity disables a [[nodiscard]] warning
+#define beammp_ignore(x) (void)x
+
+// clang-format off
+#ifdef DOCTEST_CONFIG_DISABLE
+
+    // we would like the full function signature 'void a::foo() const'
+    // on windows this is __FUNCSIG__, on GCC it's __PRETTY_FUNCTION__,
+    // feel free to add more
+    #if defined(WIN32)
+        #define _function_name std::string(__FUNCSIG__)
+    #elif defined(__unix) || defined(__unix__)
+        #define _function_name std::string(__PRETTY_FUNCTION__)
+    #else
+        #define _function_name std::string(__func__)
+    #endif
+
+    #ifndef NDEBUG
+        #define DEBUG
+    #endif
+
+    #if defined(DEBUG)
+
+        // if this is defined, we will show the full function signature infront of
+        // each info/debug/warn... call instead of the 'filename:line' format.
+        #if defined(BMP_FULL_FUNCTION_NAMES)
+            #define _this_location (ThreadName() + _function_name + " ")
+        #else
+            #define _this_location (ThreadName() + _file_basename + ":" + _line + " ")
+        #endif
+
+    #endif // defined(DEBUG)
+
+    #define beammp_warn(x) Application::Console().Write(_this_location + std::string("[WARN] ") + (x))
+    #define beammp_info(x) Application::Console().Write(_this_location + std::string("[INFO] ") + (x))
+    #define beammp_error(x)                                                               \
+        do {                                                                              \
+            Application::Console().Write(_this_location + std::string("[ERROR] ") + (x)); \
+        } while (false)
+    #define beammp_lua_error(x)                                                               \
+        do {                                                                                  \
+            Application::Console().Write(_this_location + std::string("[LUA ERROR] ") + (x)); \
+        } while (false)
+    #define beammp_lua_log(level, plugin, x)                                                               \
+        do {                                                                                 \
+            Application::Console().Write(_this_location + fmt::format("[{}] [{}] ", plugin, level) + (x)); \
+        } while (false)
+    #define beammp_lua_warn(x)                                                               \
+        do {                                                                                 \
+            Application::Console().Write(_this_location + std::string("[LUA WARN] ") + (x)); \
+        } while (false)
+    #define luaprint(x) Application::Console().Write(_this_location + std::string("[LUA] ") + (x))
+    #define beammp_debug(x)                                                                   \
+        do {                                                                                  \
+            if (Application::Settings.getAsBool(Settings::Key::General_Debug)) {                                     \
+                Application::Console().Write(_this_location + std::string("[DEBUG] ") + (x)); \
+            }                                                                                 \
+        } while (false)
+    #define beammp_event(x)                                                                   \
+        do {                                                                                  \
+            if (Application::Settings.getAsBool(Settings::Key::General_Debug)) {                                     \
+                Application::Console().Write(_this_location + std::string("[EVENT] ") + (x)); \
+            }                                                                                 \
+        } while (false)
+    // trace() is a debug-build debug()
+    #if defined(DEBUG)
+        #define beammp_trace(x)                                                                   \
+            do {                                                                                  \
+                if (Application::Settings.getAsBool(Settings::Key::General_Debug)) {                                     \
+                    Application::Console().Write(_this_location + std::string("[TRACE] ") + (x)); \
+                }                                                                                 \
+            } while (false)
+    #else
+        #define beammp_trace(x)
+    #endif // defined(DEBUG)
+
+    #define beammp_errorf(...) beammp_error(fmt::format(__VA_ARGS__))
+    #define beammp_infof(...) beammp_info(fmt::format(__VA_ARGS__))
+    #define beammp_debugf(...) beammp_debug(fmt::format(__VA_ARGS__))
+    #define beammp_warnf(...) beammp_warn(fmt::format(__VA_ARGS__))
+    #define beammp_tracef(...) beammp_trace(fmt::format(__VA_ARGS__))
+    #define beammp_lua_errorf(...) beammp_lua_error(fmt::format(__VA_ARGS__))
+    #define beammp_lua_warnf(...) beammp_lua_warn(fmt::format(__VA_ARGS__))
+
+#else // DOCTEST_CONFIG_DISABLE
+
+    #define beammp_error(x) /* x */
+    #define beammp_lua_error(x) /* x */
+    #define beammp_warn(x) /* x */
+    #define beammp_lua_warn(x) /* x */
+    #define beammp_info(x) /* x */
+    #define beammp_event(x) /* x */
+    #define beammp_debug(x) /* x */
+    #define beammp_trace(x) /* x */
+    #define luaprint(x) /* x */
+    #define beammp_errorf(...) beammp_error(fmt::format(__VA_ARGS__))
+    #define beammp_infof(...) beammp_info(fmt::format(__VA_ARGS__))
+    #define beammp_warnf(...) beammp_warn(fmt::format(__VA_ARGS__))
+    #define beammp_debugf(...) beammp_debug(fmt::format(__VA_ARGS__))
+    #define beammp_tracef(...) beammp_trace(fmt::format(__VA_ARGS__))
+    #define beammp_lua_errorf(...) beammp_lua_error(fmt::format(__VA_ARGS__))
+    #define beammp_lua_warnf(...) beammp_lua_warn(fmt::format(__VA_ARGS__))
+    #define beammp_lua_log(level, plugin, x) /* x */
+
+#endif // DOCTEST_CONFIG_DISABLE
 
 #if defined(DEBUG)
-
-// if this is defined, we will show the full function signature infront of
-// each info/debug/warn... call instead of the 'filename:line' format.
-#if defined(BMP_FULL_FUNCTION_NAMES)
-#define _this_location (ThreadName() + _function_name + " ")
+    #define SU_RAW SSU_UNRAW
 #else
-#define _this_location (ThreadName() + _file_basename + ":" + _line + " ")
+    #define SU_RAW RAWIFY(SSU_UNRAW)
+    #define _this_location (ThreadName())
 #endif
 
-#else // !defined(DEBUG)
+// clang-format on
 
-#define _this_location (ThreadName())
+void LogChatMessage(const std::string& name, int id, const std::string& msg);
 
-#endif // defined(DEBUG)
+std::vector<uint8_t> Comp(std::span<const uint8_t> input);
+std::vector<uint8_t> DeComp(std::span<const uint8_t> input);
 
-#define warn(x) Application::Console().Write(_this_location + std::string("[WARN] ") + (x))
-#define info(x) Application::Console().Write(_this_location + std::string("[INFO] ") + (x))
-#define error(x) Application::Console().Write(_this_location + std::string("[ERROR] ") + (x))
-#define luaprint(x) Application::Console().Write(_this_location + std::string("[LUA] ") + (x))
-#define debug(x)                                                                          \
-    do {                                                                                  \
-        if (Application::Settings.DebugModeEnabled) {                                     \
-            Application::Console().Write(_this_location + std::string("[DEBUG] ") + (x)); \
-        }                                                                                 \
-    } while (false)
-
-#define Biggest 30000
-std::string Comp(std::string Data);
-std::string DeComp(std::string Compressed);
+std::string GetPlatformAgnosticErrorString();
+#define S_DSN SU_RAW
 
+class InvalidDataError : std::runtime_error {
+public:
+    InvalidDataError() : std::runtime_error("Invalid data") {
+    }
+};

include/Compat.h

@@ -1,36 +1,55 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
+#include "Environment.h"
+
 // ======================= UNIX ========================
 
-#ifdef __unix
-#include <arpa/inet.h>
-#include <sys/socket.h>
+#ifdef BEAMMP_LINUX
+#include <errno.h>
+#include <termios.h>
+#include <unistd.h>
+char _getch();
+#endif // linux
+
+#ifdef BEAMMP_FREEBSD
+#include <errno.h>
+#include <termios.h>
+#include <unistd.h>
+char _getch();
+// macros 'major' and 'minor' need to be undefined on FreeBSD to avoid naming collision with system headers
+#undef major
+#undef minor
+#endif // freebsd
+
+// ======================= APPLE ========================
+
+#ifdef BEAMMP_APPLE
+#include <errno.h>
 #include <termios.h>
 #include <unistd.h>
-using SOCKET = int;
-using DWORD = unsigned long;
-using PDWORD = unsigned long*;
-using LPDWORD = unsigned long*;
 char _getch();
-inline void CloseSocketProper(int socket) {
-    shutdown(socket, SHUT_RDWR);
-    close(socket);
-}
 #endif // unix
 
-// ======================= WIN32 =======================
+// ======================= WINDOWS =======================
 
-#ifdef WIN32
+#ifdef BEAMMP_WINDOWS
 #include <conio.h>
-#include <winsock2.h>
-inline void CloseSocketProper(SOCKET socket) {
-    shutdown(socket, SD_BOTH);
-    closesocket(socket);
-}
 #endif // WIN32
-
-// ======================= OTHER =======================
-
-#if !defined(WIN32) && !defined(__unix)
-#error "OS not supported"
-#endif

include/Cryptography.h

@@ -0,0 +1,130 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+#include <array>
+#include <cstdarg>
+#include <string>
+
+namespace Crypto {
+
+constexpr auto time = __TIME__;
+constexpr auto seed = static_cast<int>(time[7]) + static_cast<int>(time[6]) * 10 + static_cast<int>(time[4]) * 60 + static_cast<int>(time[3]) * 600 + static_cast<int>(time[1]) * 3600 + static_cast<int>(time[0]) * 36000;
+
+// 1988, Stephen Park and Keith Miller
+// "Random Number Generators: Good Ones Are Hard To Find", considered as "minimal standard"
+// Park-Miller 31 bit pseudo-random number generator, implemented with G. Carta's optimisation:
+// with 32-bit math and without division
+
+template <int N>
+struct RandomGenerator {
+private:
+    static constexpr unsigned a = 16807; // 7^5
+    static constexpr unsigned m = 2147483647; // 2^31 - 1
+
+    static constexpr unsigned s = RandomGenerator<N - 1>::value;
+    static constexpr unsigned lo = a * (s & 0xFFFFu); // Multiply lower 16 bits by 16807
+    static constexpr unsigned hi = a * (s >> 16u); // Multiply higher 16 bits by 16807
+    static constexpr unsigned lo2 = lo + ((hi & 0x7FFFu) << 16u); // Combine lower 15 bits of hi with lo's upper bits
+    static constexpr unsigned hi2 = hi >> 15u; // Discard lower 15 bits of hi
+    static constexpr unsigned lo3 = lo2 + hi;
+
+public:
+    static constexpr unsigned max = m;
+    static constexpr unsigned value = lo3 > m ? lo3 - m : lo3;
+};
+
+template <>
+struct RandomGenerator<0> {
+    static constexpr unsigned value = seed;
+};
+
+template <int N, int M>
+struct RandomInt {
+    static constexpr auto value = RandomGenerator<N + 1>::value % M;
+};
+
+template <int N>
+struct RandomChar {
+    static const char value = static_cast<char>(1 + RandomInt<N, 0x7F - 1>::value);
+};
+
+template <size_t N, int K, typename Char>
+struct MangleString {
+private:
+    const char _key;
+    std::array<Char, N + 1> _encrypted;
+
+    constexpr Char enc(Char c) const {
+        return c ^ _key;
+    }
+
+    Char dec(Char c) const {
+        return c ^ _key;
+    }
+
+public:
+    template <size_t... Is>
+    constexpr MangleString(const Char* str, std::index_sequence<Is...>)
+        : _key(RandomChar<K>::value)
+        , _encrypted { enc(str[Is])... } { }
+
+    decltype(auto) decrypt() {
+        for (size_t i = 0; i < N; ++i) {
+            _encrypted[i] = dec(_encrypted[i]);
+        }
+        _encrypted[N] = '\0';
+        return _encrypted.data();
+    }
+};
+
+static auto w_printf = [](const char* fmt, ...) {
+    va_list args;
+    va_start(args, fmt);
+    vprintf(fmt, args);
+    va_end(args);
+};
+
+static auto w_printf_s = [](const char* fmt, ...) {
+    va_list args;
+    va_start(args, fmt);
+    vprintf(fmt, args);
+    va_end(args);
+};
+
+static auto w_sprintf_s = [](char* buf, size_t, const char* fmt, ...) {
+    va_list args;
+    va_start(args, fmt);
+    vsprintf(buf, fmt, args);
+    va_end(args);
+};
+
+static auto w_sprintf_s_ret = [](char* buf, size_t, const char* fmt, ...) {
+    int ret;
+    va_list args;
+    va_start(args, fmt);
+    ret = vsprintf(buf, fmt, args);
+    va_end(args);
+    return ret;
+};
+
+#define XOR_C(s) [] { constexpr Crypto::MangleString< sizeof(s)/sizeof(char) - 1, __COUNTER__, char > expr( s, std::make_index_sequence< sizeof(s)/sizeof(char) - 1>() ); return expr; }().decrypt()
+#define XOR_W(s) [] { constexpr Crypto::MangleString< sizeof(s)/sizeof(wchar_t) - 1, __COUNTER__, wchar_t > expr( s, std::make_index_sequence< sizeof(s)/sizeof(wchar_t) - 1>() ); return expr; }().decrypt()
+#define RAWIFY(s) XOR_C(s)
+
+}

include/CustomAssert.h

@@ -1,4 +1,20 @@
-// Author: lionkor
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 /*
  * Asserts are to be used anywhere where assumptions about state are made
@@ -16,6 +32,7 @@
 #include <thread>
 
 #include "Common.h"
+#include "Compat.h"
 
 static const char* const ANSI_RESET = "\u001b[0m";
 
@@ -40,7 +57,7 @@ static const char* const ANSI_WHITE_BOLD = "\u001b[37;1m";
 static const char* const ANSI_BOLD = "\u001b[1m";
 static const char* const ANSI_UNDERLINE = "\u001b[4m";
 
-#if DEBUG
+#if defined(DEBUG) && !defined(BEAMMP_FREEBSD)
 #include <iostream>
 inline void _assert([[maybe_unused]] const char* file, [[maybe_unused]] const char* function, [[maybe_unused]] unsigned line,
     [[maybe_unused]] const char* condition_string, [[maybe_unused]] bool result) {
@@ -55,14 +72,18 @@ inline void _assert([[maybe_unused]] const char* file, [[maybe_unused]] const ch
     }
 }
 
-#define Assert(cond) _assert(__FILE__, __func__, __LINE__, #cond, (cond))
-#define AssertNotReachable() _assert(__FILE__, __func__, __LINE__, "reached unreachable code", false)
+#define beammp_assert(cond) _assert(__FILE__, __func__, __LINE__, #cond, (cond))
+#define beammp_assert_not_reachable() _assert(__FILE__, __func__, __LINE__, "reached unreachable code", false)
 #else
-// In release build, these macros turn into NOPs. The compiler will optimize these out.
-#define Assert(x) \
-    do {          \
+#define beammp_assert(cond)                                                            \
+    do {                                                                               \
+        bool result = (cond);                                                          \
+        if (!result) {                                                                 \
+            beammp_errorf("Assertion failed in '{}:{}': {}.", __func__, _line, #cond); \
+        }                                                                              \
     } while (false)
-#define AssertNotReachable() \
-    do {                     \
+#define beammp_assert_not_reachable()                                                                                                                           \
+    do {                                                                                                                                                        \
+        beammp_errorf("Assertion failed in '{}:{}': Unreachable code reached. This may result in a crash or undefined state of the program.", __func__, _line); \
     } while (false)
 #endif // DEBUG

include/Defer.h

@@ -0,0 +1,36 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <functional>
+
+template <typename FnT>
+class Defer final {
+public:
+    Defer(FnT fn)
+        : mFunction([&fn] { (void)fn(); }) { }
+    ~Defer() {
+        if (mFunction) {
+            mFunction();
+        }
+    }
+
+private:
+    std::function<void()> mFunction;
+};

include/Env.h

@@ -0,0 +1,38 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <optional>
+#include <string>
+namespace Env {
+
+enum class Key {
+    // provider settings
+    PROVIDER_UPDATE_MESSAGE,
+    PROVIDER_DISABLE_CONFIG,
+    PROVIDER_DISABLE_MP_SET,
+    PROVIDER_PORT_ENV,
+    PROVIDER_IP_ENV
+};
+
+std::optional<std::string> Get(Key key);
+
+std::string_view ToString(Key key);
+
+}

include/Environment.h

@@ -0,0 +1,37 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+// one of BEAMMP_{WINDOWS,LINUX,APPLE} will be set at the end of this
+
+// clang-format off
+#if !defined(BEAMMP_WINDOWS) && !defined(BEAMMP_UNIX) && !defined(BEAMMP_APPLE) && !defined(BEAMMP_FREEBSD)
+    #if defined(_WIN32) || defined(__CYGWIN__)
+        #define BEAMMP_WINDOWS
+    #elif defined(__linux__) || defined(__linux) || defined(linux)
+        #define BEAMMP_LINUX
+    #elif defined(__FreeBSD__)
+	#define BEAMMP_FREEBSD
+    #elif defined(__APPLE__) || defined(__MACH__)
+        #define BEAMMP_APPLE
+    #else
+        #error "This platform is not known. Please define one of the above for your OS."
+    #endif
+#endif
+// clang-format on

include/Http.h

@@ -1,9 +1,61 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
+#include <Common.h>
+#include <IThreaded.h>
+#include <filesystem>
 #include <string>
 #include <unordered_map>
+#include <curl/curl.h>
+
+#if defined(BEAMMP_LINUX)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#pragma GCC diagnostic ignored "-Wcast-qual"
+#pragma GCC diagnostic ignored "-Wold-style-cast"
+#endif
+#include <httplib.h>
+#if defined(BEAMMP_LINUX)
+#pragma GCC diagnostic pop
+#endif
+
+namespace fs = std::filesystem;
 
 namespace Http {
-std::string GET(const std::string& host, int port, const std::string& target);
-std::string POST(const std::string& host, const std::string& target, const std::unordered_map<std::string, std::string>& fields, const std::string& body, bool json);
-}
+std::string GET(const std::string& url, unsigned int* status = nullptr);
+std::string POST(const std::string& url, const std::string& body, const std::string& ContentType, unsigned int* status = nullptr, const std::map<std::string, std::string>& headers = {});
+namespace Status {
+    std::string ToString(int code);
+}
+const std::string ErrorString = "-1";
+
+namespace Server {
+    class THttpServerInstance {
+    public:
+        THttpServerInstance();
+
+    protected:
+        void operator()();
+
+    private:
+        std::thread mThread;
+    };
+}
+}

include/IThreaded.h

@@ -1,3 +1,21 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
 #include <thread>
@@ -8,6 +26,11 @@ public:
     IThreaded()
         // invokes operator() on this object
         : mThread() { }
+    virtual ~IThreaded() noexcept {
+        if (mThread.joinable()) {
+            mThread.join();
+        }
+    }
 
     virtual void Start() final {
         mThread = std::thread([this] { (*this)(); });

include/Json.h

@@ -1,9 +1,23 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
 //
-// Created by anon on 4/21/21.
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
 //
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 #pragma once
-#include "rapidjson/stringbuffer.h"
-#include "rapidjson/prettywriter.h"
 #include "rapidjson/document.h"
+#include "rapidjson/prettywriter.h"
+#include "rapidjson/stringbuffer.h"
 #include "rapidjson/writer.h"

include/LuaAPI.h

@@ -0,0 +1,69 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include "TLuaEngine.h"
+#include <tuple>
+
+namespace LuaAPI {
+int PanicHandler(lua_State* State);
+std::string LuaToString(const sol::object Value, size_t Indent = 1, bool QuoteStrings = false);
+void Print(sol::variadic_args);
+namespace MP {
+    extern TLuaEngine* Engine;
+
+    std::string GetOSName();
+    std::tuple<int, int, int> GetServerVersion();
+    std::pair<bool, std::string> TriggerClientEvent(int PlayerID, const std::string& EventName, const sol::object& Data);
+    std::pair<bool, std::string> TriggerClientEventJson(int PlayerID, const std::string& EventName, const sol::table& Data);
+    inline size_t GetPlayerCount() { return Engine->Server().ClientCount(); }
+    std::pair<bool, std::string> DropPlayer(int ID, std::optional<std::string> MaybeReason);
+    std::pair<bool, std::string> SendChatMessage(int ID, const std::string& Message, const bool& LogChat = true);
+    std::pair<bool, std::string> SendNotification(int ID, const std::string& Message, const std::string& Icon, const std::string& Category);
+    std::pair<bool, std::string> ConfirmationDialog(int ID, const std::string& Title, const std::string& Body, const sol::table& buttons, const std::string& InteractionID, const bool& warning = false, const bool& reportToServer = true, const bool& reportToExtensions = true);
+    std::pair<bool, std::string> RemoveVehicle(int PlayerID, int VehicleID);
+    void Set(int ConfigID, sol::object NewValue);
+    TLuaValue Get(int ConfigID);
+    bool IsPlayerGuest(int ID);
+    bool IsPlayerConnected(int ID);
+    void Sleep(size_t Ms);
+    void PrintRaw(sol::variadic_args);
+    std::string JsonEncode(const sol::table& object);
+    std::string JsonDiff(const std::string& a, const std::string& b);
+    std::string JsonDiffApply(const std::string& data, const std::string& patch);
+    std::string JsonPrettify(const std::string& json);
+    std::string JsonMinify(const std::string& json);
+    std::string JsonFlatten(const std::string& json);
+    std::string JsonUnflatten(const std::string& json);
+}
+
+namespace FS {
+    std::pair<bool, std::string> CreateDirectory(const std::string& Path);
+    std::pair<bool, std::string> Remove(const std::string& Path);
+    std::pair<bool, std::string> Rename(const std::string& Path, const std::string& NewPath);
+    std::pair<bool, std::string> Copy(const std::string& Path, const std::string& NewPath);
+    std::string GetFilename(const std::string& Path);
+    std::string GetExtension(const std::string& Path);
+    std::string GetParentFolder(const std::string& Path);
+    bool Exists(const std::string& Path);
+    bool IsDirectory(const std::string& Path);
+    bool IsFile(const std::string& Path);
+    std::string ConcatPaths(sol::variadic_args Args);
+}
+}

include/Profiling.h

@@ -0,0 +1,75 @@
+#pragma once
+
+#include <boost/thread/synchronized_value.hpp>
+#include <chrono>
+#include <cstddef>
+#include <limits>
+#include <unordered_map>
+
+#undef max
+#undef min
+
+namespace prof {
+
+using Duration = std::chrono::duration<double, std::milli>;
+using TimePoint = std::chrono::high_resolution_clock::time_point;
+
+/// Returns the current time.
+TimePoint now();
+
+/// Returns a sub-millisecond resolution duration between start and end.
+Duration duration(const TimePoint& start, const TimePoint& end);
+
+struct Stats {
+    double mean;
+    double stdev;
+    double min;
+    double max;
+    size_t n;
+};
+
+/// Calculates and stores the moving average over K samples of execution time data
+/// for some single unit of code. Threadsafe.
+struct UnitExecutionTime {
+    UnitExecutionTime();
+
+    /// Adds a sample to the collection, overriding the oldest sample if needed.
+    void add_sample(const Duration& dur);
+
+    /// Calculates the mean duration over the `measurement_count()` measurements,
+    /// as well as the standard deviation.
+    Stats stats() const;
+
+    /// Returns the number of elements the moving average is calculated over.
+    size_t measurement_count() const;
+
+private:
+    mutable std::mutex m_mtx {};
+    size_t m_total_calls {};
+    double m_sum {};
+    // sum of measurements squared (for running stdev)
+    double m_measurement_sqr_sum {};
+    double m_min { std::numeric_limits<double>::max() };
+    double m_max { std::numeric_limits<double>::min() };
+};
+
+/// Holds profiles for multiple units by name. Threadsafe.
+struct UnitProfileCollection {
+    /// Adds a sample to the collection, overriding the oldest sample if needed.
+    void add_sample(const std::string& unit, const Duration& duration);
+
+    /// Calculates the mean duration over the `measurement_count()` measurements,
+    /// as well as the standard deviation.
+    Stats stats(const std::string& unit);
+
+    /// Returns the number of elements the moving average is calculated over.
+    size_t measurement_count(const std::string& unit);
+
+    /// Returns the stats for all stored units.
+    std::unordered_map<std::string, Stats> all_stats();
+
+private:
+    boost::synchronized_value<std::unordered_map<std::string, UnitExecutionTime>> m_map;
+};
+
+}

include/RWMutex.h

@@ -1,4 +1,21 @@
-// Author: lionkor
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
 /*
@@ -6,8 +23,8 @@
  * and write locks and read locks are mutually exclusive.
  */
 
-#include <shared_mutex>
 #include <mutex>
+#include <shared_mutex>
 
 // Use ReadLock(m) and WriteLock(m) to lock it.
 using RWMutex = std::shared_mutex;

include/RegionHandler.h

@@ -0,0 +1,33 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <vector>
+#include <string>
+#include <array>
+
+class RegionHandler final {
+public:
+    RegionHandler() = delete;
+    static void TopLevelDomainFailed();
+    static std::string RegionToTopLevelDomain();
+private:
+    static inline unsigned int mRegionIndex { 0 };
+    const static inline std::array<std::string, 2> mValidTLDs {"beammp.com", "beammp.ru"};
+};

include/Settings.h

@@ -0,0 +1,145 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+#include "Sync.h"
+#include <concepts>
+#include <cstdint>
+#include <doctest/doctest.h>
+#include <fmt/core.h>
+#include <fmt/format.h>
+#include <stdexcept>
+#include <string>
+#include <unordered_map>
+#include <variant>
+
+struct ComposedKey {
+    std::string Category;
+    std::string Key;
+
+    bool operator==(const ComposedKey& rhs) const {
+        return (this->Category == rhs.Category && this->Key == rhs.Key);
+    }
+};
+
+template <>
+struct fmt::formatter<ComposedKey> : formatter<std::string> {
+    auto format(ComposedKey key, format_context& ctx) const;
+};
+
+inline auto fmt::formatter<ComposedKey>::format(ComposedKey key, fmt::format_context& ctx) const {
+    std::string key_metadata = fmt::format("{}::{}", key.Category, key.Key);
+    return formatter<std::string>::format(key_metadata, ctx);
+}
+
+namespace std {
+template <>
+class hash<ComposedKey> {
+public:
+    std::uint64_t operator()(const ComposedKey& key) const {
+        std::hash<std::string> hash_fn;
+        return hash_fn(key.Category + key.Key);
+    }
+};
+}
+
+struct Settings {
+    using SettingsTypeVariant = std::variant<std::string, bool, int>;
+
+    Settings();
+
+    enum Key {
+        // Keys that correspond to the keys set in TOML
+        // Keys have their TOML section name as prefix
+
+        // [Misc]
+        Misc_ImScaredOfUpdates,
+        Misc_UpdateReminderTime,
+
+        // [General]
+        General_Description,
+        General_Tags,
+        General_MaxPlayers,
+        General_Name,
+        General_Map,
+        General_AuthKey,
+        General_Private,
+        General_IP,
+        General_Port,
+        General_MaxCars,
+        General_LogChat,
+        General_ResourceFolder,
+        General_Debug,
+        General_AllowGuests,
+        General_InformationPacket,
+        General_Region,
+    };
+
+    Sync<std::unordered_map<Key, SettingsTypeVariant>> SettingsMap;
+    enum SettingsAccessMask {
+        READ_ONLY, // Value can be read from console
+        READ_WRITE, // Value can be read and written to from console
+        NO_ACCESS // Value is inaccessible from console (no read OR write)
+    };
+
+    using SettingsAccessControl = std::pair<
+        Key, // The Key's corresponding enum encoding
+        SettingsAccessMask // Console read/write permissions
+        >;
+
+    Sync<std::unordered_map<ComposedKey, SettingsAccessControl>> InputAccessMapping;
+    std::string getAsString(Key key);
+
+    int getAsInt(Key key);
+
+    bool getAsBool(Key key);
+
+    SettingsTypeVariant get(Key key);
+
+    void set(Key key, const std::string& value);
+
+    template <typename Integer, std::enable_if_t<std::is_same_v<Integer, int>, bool> = true>
+    void set(Key key, Integer value) {
+        auto map = SettingsMap.synchronize();
+        if (!map->contains(key)) {
+            throw std::logic_error { "Undefined setting key accessed in Settings::set(int)" };
+        }
+        if (!std::holds_alternative<int>(map->at(key))) {
+            throw std::logic_error { fmt::format("Wrong value type in Settings::set(int): index {}", map->at(key).index()) };
+        }
+        map->at(key) = value;
+    }
+    template <typename Boolean, std::enable_if_t<std::is_same_v<bool, Boolean>, bool> = true>
+    void set(Key key, Boolean value) {
+        auto map = SettingsMap.synchronize();
+        if (!map->contains(key)) {
+            throw std::logic_error { "Undefined setting key accessed in Settings::set(bool)" };
+        }
+        if (!std::holds_alternative<bool>(map->at(key))) {
+            throw std::logic_error { fmt::format("Wrong value type in Settings::set(bool): index {}", map->at(key).index()) };
+        }
+        map->at(key) = value;
+    }
+
+    const std::unordered_map<ComposedKey, SettingsAccessControl> getAccessControlMap() const;
+    SettingsAccessControl getConsoleInputAccessMapping(const ComposedKey& keyName);
+
+    void setConsoleInputAccessMapping(const ComposedKey& keyName, const std::string& value);
+    void setConsoleInputAccessMapping(const ComposedKey& keyName, int value);
+    void setConsoleInputAccessMapping(const ComposedKey& keyName, bool value);
+};

include/SignalHandling.h

@@ -0,0 +1,21 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+void SetupSignalHandlers();

include/SocketIO.h

@@ -1,69 +0,0 @@
-#pragma once
-
-#include <atomic>
-#include <deque>
-#include <mutex>
-#include <sio_client.h>
-#include <thread>
-#include <memory>
-
-/*
- * We send relevant server events over socket.io to the backend.
- *
- * We send all events to `backend.beammp.com`, to the room `/key` 
- * where `key` is the currently active auth-key. 
- */
-
-enum class SocketIOEvent {
-    ConsoleOut,
-    CPUUsage,
-    MemoryUsage,
-    NetworkUsage,
-    PlayerList,
-};
-
-enum class SocketIORoom {
-    None,
-    Stats,
-    Player,
-    Info,
-    Console,
-};
-
-class SocketIO final {
-private:
-    struct Event;
-
-public:
-    enum class EventType {
-    };
-
-    // Singleton pattern
-    static SocketIO& Get();
-
-    void Emit(SocketIOEvent Event, const std::string& Data);
-
-    ~SocketIO();
-
-    void SetAuthenticated(bool auth) { mAuthenticated = auth; }
-
-private:
-    SocketIO() noexcept;
-
-    void ThreadMain();
-
-    struct Event {
-        std::string Name;
-        std::string Data;
-    };
-
-    bool mAuthenticated { false };
-    sio::client mClient;
-    std::thread mThread;
-    std::atomic_bool mCloseThread { false };
-    std::mutex mQueueMutex;
-    std::deque<Event> mQueue;
-
-    friend std::unique_ptr<SocketIO> std::make_unique<SocketIO>();
-};
-

include/Sync.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#include <boost/thread/synchronized_value.hpp>
+#include <mutex>
+
+/// This header provides convenience aliases for synchronization primitives.
+
+template <typename T>
+using Sync = boost::synchronized_value<T, std::recursive_mutex>;

include/TConfig.h

@@ -1,21 +1,52 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
 #include "Common.h"
+#include "Settings.h"
 
 #include <atomic>
+#include <filesystem>
+
+#define TOML11_PRESERVE_COMMENTS_BY_DEFAULT
+#include <toml.hpp> // header-only version of TOML++
+
+namespace fs = std::filesystem;
 
 class TConfig {
 public:
-    explicit TConfig();
+    explicit TConfig(const std::string& ConfigFileName);
 
-    bool Failed() const { return mFailed; }
+    [[nodiscard]] bool Failed() const { return mFailed; }
+
+    void FlushToFile();
+    void PrintDebug();
 
 private:
-    void CreateConfigFile(std::string_view name);
+    void CreateConfigFile();
     void ParseFromFile(std::string_view name);
-    void PrintDebug();
-    
-    void ParseOldFormat();
+    void TryReadValue(toml::value& Table, const std::string& Category, const std::string_view& Key, const std::string_view& Env, Settings::Key key);
 
+    void ParseOldFormat();
+    std::string TagsAsPrettyArray() const;
+    bool IsDefault();
     bool mFailed { false };
+    bool mDisableConfig { false };
+    std::string mConfigFileName;
 };

include/TConnectionLimiter.h

@@ -0,0 +1,90 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2026 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <mutex>
+#include <optional>
+#include <string>
+#include <unordered_map>
+#include <utility>
+
+class TConnectionLimiter {
+public:
+    struct TStats {
+        size_t CurrentGlobal = 0;
+        size_t MaxGlobal = 0;
+        size_t ActiveIpBuckets = 0;
+        size_t CurrentMaxPerIp = 0;
+        size_t MaxPerIp = 0;
+        size_t SaturatedIpBuckets = 0;
+    };
+
+    class TGuard {
+    public:
+        TGuard() = default;
+        TGuard(TConnectionLimiter* owner, std::string ip);
+
+        TGuard(const TGuard&) = delete;
+        TGuard& operator=(const TGuard&) = delete;
+
+        ~TGuard() { Release(); }
+
+        // not threadsafe
+        TGuard(TGuard&& other) noexcept { *this = std::move(other); }
+        // not threadsafe
+        TGuard& operator=(TGuard&& other) noexcept;
+
+    private:
+        friend class TConnectionLimiter;
+
+        // not threadsafe
+        void Release();
+
+        TConnectionLimiter* mOwner { nullptr };
+        std::string mIp;
+    };
+
+    TConnectionLimiter(size_t maxPerIp, size_t maxGlobal);
+
+    [[nodiscard]] std::optional<TGuard> TryAcquire(const std::string& ip);
+    [[nodiscard]] TStats GetStats();
+
+private:
+    void Release(const std::string& ip) {
+        std::unique_lock Lock { mMutex };
+        auto It = mPerIp.find(ip);
+        if (It != mPerIp.end()) {
+            // this guard exists to avoid underflow in case something goes wrong and this gets called too many times
+            if (It->second > 0)
+                --It->second;
+            if (It->second == 0)
+                mPerIp.erase(It);
+        }
+        // this guard exists to avoid underflow in case something goes wrong and this gets called too many times
+        if (mGlobal > 0)
+            --mGlobal;
+    }
+
+    const size_t mMaxPerIp;
+    const size_t mMaxGlobal;
+
+    std::mutex mMutex { };
+    std::unordered_map<std::string, size_t> mPerIp { };
+    size_t mGlobal = 0;
+};

include/TConsole.h

@@ -1,19 +1,98 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
-#include "commandline/commandline.h"
-#include "TLuaFile.h"
+#include "Cryptography.h"
+#include "commandline.h"
 #include <atomic>
 #include <fstream>
+#include <functional>
+#include <mutex>
+#include <string>
+#include <tuple>
+#include <unordered_map>
+#include <vector>
+
+class TLuaEngine;
 
 class TConsole {
 public:
     TConsole();
 
+    // Initializes the commandline app to take over I/O
+    void InitializeCommandline();
+
     void Write(const std::string& str);
     void WriteRaw(const std::string& str);
     void InitializeLuaConsole(TLuaEngine& Engine);
+    void BackupOldLog();
+    void StartLoggingToFile();
+    Commandline& Internal() { return *mCommandline; }
 
 private:
-    std::unique_ptr<TLuaFile> mLuaConsole { nullptr };
-    Commandline mCommandline;
+    void RunAsCommand(const std::string& cmd, bool IgnoreNotACommand = false);
+    void ChangeToLuaConsole(const std::string& LuaStateId);
+    void ChangeToRegularConsole();
+    void HandleLuaInternalCommand(const std::string& cmd);
+
+    void Command_Lua(const std::string& cmd, const std::vector<std::string>& args);
+    void Command_Help(const std::string& cmd, const std::vector<std::string>& args);
+    void Command_Kick(const std::string& cmd, const std::vector<std::string>& args);
+    void Command_List(const std::string& cmd, const std::vector<std::string>& args);
+    void Command_Status(const std::string& cmd, const std::vector<std::string>& args);
+    void Command_Settings(const std::string& cmd, const std::vector<std::string>& args);
+    void Command_Clear(const std::string&, const std::vector<std::string>& args);
+    void Command_Version(const std::string& cmd, const std::vector<std::string>& args);
+    void Command_ProtectMod(const std::string& cmd, const std::vector<std::string>& args);
+    void Command_ReloadMods(const std::string& cmd, const std::vector<std::string>& args);
+    void Command_NetTest(const std::string& cmd, const std::vector<std::string>& args);
+
+    void Command_Say(const std::string& FullCommand);
+    bool EnsureArgsCount(const std::vector<std::string>& args, size_t n);
+    bool EnsureArgsCount(const std::vector<std::string>& args, size_t min, size_t max);
+
+    static std::tuple<std::string, std::vector<std::string>> ParseCommand(const std::string& cmd);
+    static std::string ConcatArgs(const std::vector<std::string>& args, char space = ' ');
+
+    std::unordered_map<std::string, std::function<void(const std::string&, const std::vector<std::string>&)>> mCommandMap = {
+        { "lua", [this](const auto& a, const auto& b) { Command_Lua(a, b); } },
+        { "help", [this](const auto& a, const auto& b) { Command_Help(a, b); } },
+        { "kick", [this](const auto& a, const auto& b) { Command_Kick(a, b); } },
+        { "list", [this](const auto& a, const auto& b) { Command_List(a, b); } },
+        { "status", [this](const auto& a, const auto& b) { Command_Status(a, b); } },
+        { "settings", [this](const auto& a, const auto& b) { Command_Settings(a, b); } },
+        { "clear", [this](const auto& a, const auto& b) { Command_Clear(a, b); } },
+        { "say", [this](const auto&, const auto&) { Command_Say(""); } }, // shouldn't actually be called
+        { "version", [this](const auto& a, const auto& b) { Command_Version(a, b); } },
+        { "protectmod", [this](const auto& a, const auto& b) { Command_ProtectMod(a, b); } },
+        { "reloadmods", [this](const auto& a, const auto& b) { Command_ReloadMods(a, b); } },
+        { "nettest", [this](const auto& a, const auto& b) { Command_NetTest(a, b); } },
+    };
+
+    std::unique_ptr<Commandline> mCommandline { nullptr };
+    std::vector<std::string> mCachedLuaHistory;
+    std::vector<std::string> mCachedRegularHistory;
+    TLuaEngine* mLuaEngine { nullptr };
+    bool mIsLuaConsole { false };
+    bool mFirstTime { true };
+    std::string mStateId;
+    const std::string mDefaultStateId = "BEAMMP_SERVER_CONSOLE";
+    std::ofstream mLogFileStream;
+    std::mutex mLogFileStreamMtx;
 };

include/THeartbeatThread.h

@@ -1,3 +1,21 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
 #include "Common.h"
@@ -11,11 +29,11 @@ public:
     //~THeartbeatThread();
     void operator()() override;
 
+    static inline std::string lastCall = "";
 private:
     std::string GenerateCall();
     std::string GetPlayers();
 
-    bool mShutdown = false;
     TResourceManager& mResourceManager;
     TServer& mServer;
-};
+};

include/TIoPollThread.h

@@ -0,0 +1,36 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <boost/asio/io_context.hpp>
+#include <boost/asio/executor_work_guard.hpp>
+#include <thread>
+
+class TIoPollThread {
+public:
+    TIoPollThread();
+    ~TIoPollThread();
+
+    boost::asio::io_context& IoCtx() noexcept { return mIoCtx; }
+
+private:
+    boost::asio::io_context mIoCtx;
+    boost::asio::executor_work_guard<boost::asio::io_context::executor_type> mWorkGuard;
+    std::jthread mThread;
+};

include/TLuaEngine.h

@@ -1,38 +1,296 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
-#include "Common.h"
-#include "IThreaded.h"
-#include "TLuaFile.h"
+#include "Profiling.h"
+#include "TLuaResult.h"
+#include "TNetwork.h"
 #include "TServer.h"
+#include <chrono>
+#include <condition_variable>
+#include <filesystem>
+#include <list>
 #include <lua.hpp>
 #include <memory>
-#include <optional>
+#include <mutex>
+#include <nlohmann/json.hpp>
+#include <queue>
+#include <random>
 #include <set>
+#include <sol/forward.hpp>
+#include <sol/protected_function_result.hpp>
+#include <toml.hpp>
+#include <unordered_map>
+#include <vector>
 
-class TLuaEngine : public IThreaded {
+#define SOL_ALL_SAFETIES_ON 1
+#define SOL_USER_C_ASSERT SOL_ON
+#define SOL_C_ASSERT(...) \
+    beammp_lua_errorf("SOL2 assertion failure: Assertion `{}` failed in {}:{}. This *should* be a fatal error, but BeamMP Server overrides it to not be fatal. This may cause the Lua Engine to crash, or cause other issues.", #__VA_ARGS__, __FILE__, __LINE__)
+#include <sol/sol.hpp>
+
+struct JsonString {
+    std::string value;
+};
+
+// value used to keep nils in a table or array, across serialization boundaries like
+// JsonEncode, so that the nil stays at the same index and isn't treated like a special
+// value (e.g. one that can be ignored or discarded).
+const inline std::string BEAMMP_INTERNAL_NIL = "BEAMMP_SERVER_INTERNAL_NIL_VALUE";
+
+using TLuaStateId = std::string;
+namespace fs = std::filesystem;
+/**
+ * std::variant means, that TLuaArgTypes may be one of the Types listed as template args
+ */
+using TLuaValue = std::variant<std::monostate, std::string, int, JsonString, bool, std::unordered_map<std::string, std::string>, float>;
+
+class TLuaPlugin;
+
+struct TLuaPluginConfig {
+    static inline const std::string FileName = "PluginConfig.toml";
+    TLuaStateId StateId;
+    // TODO: Add execute list
+    // TODO: Build a better toml serializer, or some way to do this in an easier way
+};
+
+struct TLuaChunk {
+    TLuaChunk(std::shared_ptr<std::string> Content,
+        std::string FileName,
+        std::string PluginPath);
+    std::shared_ptr<std::string> Content;
+    std::string FileName;
+    std::string PluginPath;
+};
+
+class TLuaEngine : public std::enable_shared_from_this<TLuaEngine>, IThreaded {
 public:
-    explicit TLuaEngine(TServer& Server, TNetwork& Network);
+    enum CallStrategy : int {
+        BestEffort,
+        Precise,
+    };
 
-    using TSetOfLuaFile = std::set<std::unique_ptr<TLuaFile>>;
+    struct QueuedFunction {
+        std::string FunctionName;
+        std::shared_ptr<TLuaResult> Result;
+        std::vector<TLuaValue> Args;
+        std::string EventName; // optional, may be empty
+    };
+
+    TLuaEngine();
+    virtual ~TLuaEngine() noexcept {
+        beammp_debug("Lua Engine terminated");
+    }
 
     void operator()() override;
 
-    [[nodiscard]] const TSetOfLuaFile& LuaFiles() const { return mLuaFiles; }
-    [[nodiscard]] TServer& Server() { return mServer; }
-    [[nodiscard]] const TServer& Server() const { return mServer; }
-    [[nodiscard]] TNetwork& Network() { return mNetwork; }
-    [[nodiscard]] const TNetwork& Network() const { return mNetwork; }
+    TNetwork& Network() { return *mNetwork; }
+    TServer& Server() { return *mServer; }
 
-    std::optional<std::reference_wrapper<TLuaFile>> GetScript(lua_State* L);
+    void SetNetwork(TNetwork* Network) { mNetwork = Network; }
+    void SetServer(TServer* Server) { mServer = Server; }
+
+    size_t GetResultsToCheckSize() {
+        std::unique_lock Lock(mResultsToCheckMutex);
+        return mResultsToCheck.size();
+    }
+
+    size_t GetLuaStateCount() {
+        std::unique_lock Lock(mLuaStatesMutex);
+        return mLuaStates.size();
+    }
+    std::vector<std::string> GetLuaStateNames() {
+        std::vector<std::string> names {};
+        for (auto const& [stateId, _] : mLuaStates) {
+            names.push_back(stateId);
+        }
+        return names;
+    }
+    size_t GetTimedEventsCount() {
+        std::unique_lock Lock(mTimedEventsMutex);
+        return mTimedEvents.size();
+    }
+    size_t GetRegisteredEventHandlerCount() {
+        std::unique_lock Lock(mLuaEventsMutex);
+        size_t LuaEventsCount = 0;
+        for (const auto& State : mLuaEvents) {
+            for (const auto& Events : State.second) {
+                LuaEventsCount += Events.second.size();
+            }
+        }
+        return LuaEventsCount - GetLuaStateCount();
+    }
+
+    static void WaitForAll(std::vector<std::shared_ptr<TLuaResult>>& Results,
+        const std::optional<std::chrono::high_resolution_clock::duration>& Max = std::nullopt);
+    void ReportErrors(const std::vector<std::shared_ptr<TLuaResult>>& Results);
+    bool HasState(TLuaStateId StateId);
+    [[nodiscard]] std::shared_ptr<TLuaVoidResult> EnqueueScript(TLuaStateId StateID, const TLuaChunk& Script);
+    [[nodiscard]] std::shared_ptr<TLuaResult> EnqueueFunctionCall(TLuaStateId StateID, const std::string& FunctionName, const std::vector<TLuaValue>& Args, const std::string& EventName);
+    void EnsureStateExists(TLuaStateId StateId, const std::string& Name, bool DontCallOnInit = false);
+    void RegisterEvent(const std::string& EventName, TLuaStateId StateId, const std::string& FunctionName);
+    /**
+     *
+     * @tparam ArgsT Template Arguments for the event (Metadata) todo: figure out what this means
+     * @param EventName Name of the event
+     * @param IgnoreId
+     * @param Args
+     * @return
+     */
+    template <typename... ArgsT>
+    [[nodiscard]] std::vector<std::shared_ptr<TLuaResult>> TriggerEvent(const std::string& EventName, TLuaStateId IgnoreId, ArgsT&&... Args) {
+        std::unique_lock Lock(mLuaEventsMutex);
+        beammp_event(EventName);
+        if (mLuaEvents.find(EventName) == mLuaEvents.end()) { // if no event handler is defined for 'EventName', return immediately
+            return {};
+        }
+
+        std::vector<std::shared_ptr<TLuaResult>> Results;
+        std::vector<TLuaValue> Arguments { TLuaValue { std::forward<ArgsT>(Args) }... };
+
+        for (const auto& Event : mLuaEvents.at(EventName)) {
+            for (const auto& Function : Event.second) {
+                if (Event.first != IgnoreId) {
+                    Results.push_back(EnqueueFunctionCall(Event.first, Function, Arguments, EventName));
+                }
+            }
+        }
+        return Results; //
+    }
+    template <typename... ArgsT>
+    [[nodiscard]] std::vector<std::shared_ptr<TLuaResult>> TriggerLocalEvent(const TLuaStateId& StateId, const std::string& EventName, ArgsT&&... Args) {
+        std::unique_lock Lock(mLuaEventsMutex);
+        beammp_event(EventName + " in '" + StateId + "'");
+        if (mLuaEvents.find(EventName) == mLuaEvents.end()) { // if no event handler is defined for 'EventName', return immediately
+            return {};
+        }
+        std::vector<std::shared_ptr<TLuaResult>> Results;
+        std::vector<TLuaValue> Arguments { TLuaValue { std::forward<ArgsT>(Args) }... };
+        const auto Handlers = GetEventHandlersForState(EventName, StateId);
+        for (const auto& Handler : Handlers) {
+            Results.push_back(EnqueueFunctionCall(StateId, Handler, Arguments, EventName));
+        }
+        return Results;
+    }
+    std::set<std::string> GetEventHandlersForState(const std::string& EventName, TLuaStateId StateId);
+    void CreateEventTimer(const std::string& EventName, TLuaStateId StateId, size_t IntervalMS, CallStrategy Strategy);
+    void CancelEventTimers(const std::string& EventName, TLuaStateId StateId);
+    sol::state_view GetStateForPlugin(const fs::path& PluginPath);
+    TLuaStateId GetStateIDForPlugin(const fs::path& PluginPath);
+    void AddResultToCheck(const std::shared_ptr<TLuaResult>& Result);
+
+    static constexpr const char* BeamMPFnNotFoundError = "BEAMMP_FN_NOT_FOUND";
+
+    std::vector<std::string> GetStateGlobalKeysForState(TLuaStateId StateId);
+    std::vector<std::string> GetStateTableKeysForState(TLuaStateId StateId, std::vector<std::string> keys);
+
+    // Debugging functions (slow)
+    std::unordered_map<std::string /*event name */, std::vector<std::string> /* handlers */> Debug_GetEventsForState(TLuaStateId StateId);
+    std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaVoidResult>>> Debug_GetStateExecuteQueueForState(TLuaStateId StateId);
+    std::vector<QueuedFunction> Debug_GetStateFunctionQueueForState(TLuaStateId StateId);
+    std::vector<TLuaResult::DetachedSnapshot> Debug_GetResultsToCheckForState(TLuaStateId StateId);
 
 private:
-    void FolderList(const std::string& Path, bool HotSwap);
-    void RegisterFiles(const std::string& Path, bool HotSwap);
-    bool NewFile(const std::string& Path);
+    void CollectAndInitPlugins();
+    void InitializePlugin(const fs::path& Folder, const TLuaPluginConfig& Config);
+    void FindAndParseConfig(const fs::path& Folder, TLuaPluginConfig& Config);
+    size_t CalculateMemoryUsage();
 
-    TNetwork& mNetwork;
-    TServer& mServer;
-    std::string mPath;
-    bool mShutdown { false };
-    TSetOfLuaFile mLuaFiles;
+    class StateThreadData : IThreaded {
+    public:
+        StateThreadData(const std::string& Name, TLuaStateId StateId, TLuaEngine& Engine);
+        StateThreadData(const StateThreadData&) = delete;
+        virtual ~StateThreadData() noexcept { beammp_debug("\"" + mStateId + "\" destroyed"); }
+        [[nodiscard]] std::shared_ptr<TLuaVoidResult> EnqueueScript(const TLuaChunk& Script);
+        [[nodiscard]] std::shared_ptr<TLuaResult> EnqueueFunctionCall(const std::string& FunctionName, const std::vector<TLuaValue>& Args, const std::string& EventName);
+        [[nodiscard]] std::shared_ptr<TLuaResult> EnqueueFunctionCallFromCustomEvent(const std::string& FunctionName, const std::vector<TLuaValue>& Args, const std::string& EventName, CallStrategy Strategy);
+        void RegisterEvent(const std::string& EventName, const std::string& FunctionName);
+        void AddPath(const fs::path& Path); // to be added to path and cpath
+        void operator()() override;
+        sol::state_view State() { return sol::state_view(mState); }
+
+        std::vector<std::string> GetStateGlobalKeys();
+        std::vector<std::string> GetStateTableKeys(const std::vector<std::string>& keys);
+
+        // Debug functions, slow
+        std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaVoidResult>>> Debug_GetStateExecuteQueue();
+        std::vector<TLuaEngine::QueuedFunction> Debug_GetStateFunctionQueue();
+
+    private:
+        sol::table Lua_TriggerGlobalEvent(const std::string& EventName, sol::variadic_args EventArgs);
+        sol::table Lua_TriggerLocalEvent(const std::string& EventName, sol::variadic_args EventArgs);
+        sol::table Lua_GetPlayerIdentifiers(int ID);
+        std::variant<std::string, sol::nil_t> Lua_GetPlayerRole(int ID);
+        sol::table Lua_GetPlayers();
+        std::string Lua_GetPlayerName(int ID);
+        sol::table Lua_GetPlayerVehicles(int ID);
+        std::pair<sol::table, std::string> Lua_GetPositionRaw(int PID, int VID);
+        sol::table Lua_HttpCreateConnection(const std::string& host, uint16_t port);
+        sol::table Lua_JsonDecode(const std::string& str);
+        int Lua_GetPlayerIDByName(const std::string& Name);
+        sol::table Lua_FS_ListFiles(const std::string& Path);
+        sol::table Lua_FS_ListDirectories(const std::string& Path);
+
+        prof::UnitProfileCollection mProfile {};
+        std::unordered_map<std::string, prof::TimePoint> mProfileStarts;
+
+        std::string mName;
+        TLuaStateId mStateId;
+        lua_State* mState;
+        std::thread mThread;
+        std::queue<std::pair<TLuaChunk, std::shared_ptr<TLuaVoidResult>>> mStateExecuteQueue;
+        std::recursive_mutex mStateExecuteQueueMutex;
+        std::vector<QueuedFunction> mStateFunctionQueue;
+        std::mutex mStateFunctionQueueMutex;
+        std::condition_variable mStateFunctionQueueCond;
+        TLuaEngine* mEngine;
+        sol::state_view mStateView { mState };
+        std::queue<fs::path> mPaths;
+        std::recursive_mutex mPathsMutex;
+        std::mt19937 mMersenneTwister;
+        std::uniform_real_distribution<double> mUniformRealDistribution01;
+        std::vector<sol::object> JsonStringToArray(JsonString Str);
+    };
+
+    struct TimedEvent {
+        std::chrono::high_resolution_clock::duration Duration {};
+        std::chrono::high_resolution_clock::time_point LastCompletion {};
+        std::string EventName;
+        TLuaStateId StateId;
+        CallStrategy Strategy;
+        bool Expired();
+        void Reset();
+    };
+
+    TNetwork* mNetwork;
+    TServer* mServer;
+    const fs::path mResourceServerPath;
+    std::vector<std::shared_ptr<TLuaPlugin>> mLuaPlugins;
+    std::unordered_map<TLuaStateId, std::unique_ptr<StateThreadData>> mLuaStates;
+    std::recursive_mutex mLuaStatesMutex;
+    std::unordered_map<std::string /* event name */, std::unordered_map<TLuaStateId, std::set<std::string>>> mLuaEvents;
+    std::recursive_mutex mLuaEventsMutex;
+    std::vector<TimedEvent> mTimedEvents;
+    std::recursive_mutex mTimedEventsMutex;
+    std::list<std::shared_ptr<TLuaResult>> mResultsToCheck;
+    std::mutex mResultsToCheckMutex;
+    std::condition_variable mResultsToCheckCond;
 };
+
+// std::any TriggerLuaEvent(const std::string& Event, bool local, TLuaPlugin* Caller, std::shared_ptr<TLuaArg> arg, bool Wait);

include/TLuaFile.h

@@ -1,61 +0,0 @@
-#ifndef TLUAFILE_H
-#define TLUAFILE_H
-
-#include <any>
-#include <filesystem>
-#include <lua.hpp>
-#include <mutex>
-#include <set>
-#include <string>
-#include <vector>
-
-namespace fs = std::filesystem;
-
-struct TLuaArg {
-    std::vector<std::any> args;
-    void PushArgs(lua_State* State);
-};
-
-class TLuaEngine;
-
-class TLuaFile {
-public:
-    void RegisterEvent(const std::string& Event, const std::string& FunctionName);
-    void UnRegisterEvent(const std::string& Event);
-    void SetLastWrite(fs::file_time_type time);
-    bool IsRegistered(const std::string& Event);
-    void SetPluginName(const std::string& Name);
-    void Execute(const std::string& Command);
-    void SetFileName(const std::string& Name);
-    fs::file_time_type GetLastWrite();
-    lua_State* GetState();
-    std::string GetOrigin();
-    std::mutex Lock;
-    void Reload();
-    void Init(const std::string& PluginName, const std::string& FileName, fs::file_time_type LastWrote);
-    explicit TLuaFile(TLuaEngine& Engine, bool Console = false);
-    ~TLuaFile();
-    void SetStopThread(bool StopThread) { mStopThread = StopThread; }
-    TLuaEngine& Engine() { return mEngine; }
-    [[nodiscard]] std::string GetPluginName() const;
-    [[nodiscard]] std::string GetFileName() const;
-    [[nodiscard]] const lua_State* GetState() const;
-    [[nodiscard]] bool GetStopThread() const { return mStopThread; }
-    [[nodiscard]] const TLuaEngine& Engine() const { return mEngine; }
-    [[nodiscard]] std::string GetRegistered(const std::string& Event) const;
-
-private:
-    TLuaEngine& mEngine;
-    std::set<std::pair<std::string, std::string>> mRegisteredEvents;
-    lua_State* mLuaState { nullptr };
-    fs::file_time_type mLastWrote;
-    std::string mPluginName {};
-    std::string mFileName {};
-    bool mStopThread = false;
-    bool mConsole = false;
-    void Load();
-};
-
-std::any TriggerLuaEvent(const std::string& Event, bool local, TLuaFile* Caller, std::shared_ptr<TLuaArg> arg, bool Wait);
-
-#endif // TLUAFILE_H

include/TLuaPlugin.h

@@ -0,0 +1,37 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "TLuaEngine.h"
+
+class TLuaPlugin {
+public:
+    TLuaPlugin(TLuaEngine& Engine, const TLuaPluginConfig& Config, const fs::path& MainFolder);
+    TLuaPlugin(const TLuaPlugin&) = delete;
+    TLuaPlugin& operator=(const TLuaPlugin&) = delete;
+    ~TLuaPlugin() noexcept = default;
+
+    const TLuaPluginConfig& GetConfig() const { return mConfig; }
+    fs::path GetFolder() const { return mFolder; }
+
+private:
+    TLuaPluginConfig mConfig;
+    TLuaEngine& mEngine;
+    fs::path mFolder;
+    std::string mPluginName;
+    std::unordered_map<std::string, std::shared_ptr<std::string>> mFileContents;
+};

include/TLuaResult.h

@@ -0,0 +1,146 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2026 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include "Common.h"
+#include <condition_variable>
+#include <string>
+#include <memory>
+#include <sol/sol.hpp>
+
+using TLuaStateId = std::string;
+
+struct TDetachedLuaValue {
+    using Ptr = std::shared_ptr<TDetachedLuaValue>;
+    using Array = std::vector<TDetachedLuaValue>;
+    // This weird Ptr indirection is needed because some implementations of libstc++,
+    // like the GCC 11 one shipped with ubuntu 22.04, need to know the size of the second
+    // member of the pairs that make up the elements of such a map. It's fine in vector.
+    using Object = std::unordered_map<std::string, TDetachedLuaValue::Ptr>;
+    std::variant<std::monostate, bool, double, int, std::string, Array, Object> V;
+};
+std::ostream& operator<<(std::ostream& os, const TDetachedLuaValue& value);
+
+/// Result for operations that stay within one Lua state (e.g. script loads).
+/// This type intentionally does not store any Lua references or serialized Lua values.
+struct TLuaVoidResult {
+    struct Snapshot {
+        bool Error;
+        bool Ready;
+        std::string ErrorMessage;
+        TLuaStateId StateId;
+    };
+
+    explicit TLuaVoidResult(TLuaStateId StateId)
+        : mStateId(std::move(StateId)) {}
+
+    /// Marks this result as success & sets it as ready, waking all waiting threads.
+    void MarkReadySuccess();
+    /// Marks this result as erroneous & sets it as ready, waking all waiting threads.
+    void MarkReadyError(sol::protected_function_result Res);
+    /// Marks this result as erroneous & sets it as ready, waking all waiting threads.
+    void MarkReadyError(std::string Res);
+    /// Wait (suspend) until this result is ready.
+    void WaitUntilReady();
+    bool IsReady() const;
+    bool IsError() const;
+    Snapshot GetSnapshot() const;
+
+private:
+    mutable std::mutex mMutex {};
+    bool mReady { false };
+    bool mError { false };
+    std::string mErrorMessage;
+    TLuaStateId mStateId;
+    std::condition_variable mReadyCondition {};
+
+    void SetErrorMessageFromResult(sol::protected_function_result& Res) {
+        if (Res.valid()) {
+            beammp_lua_errorf("Error was not an error");
+        }
+        if (Res.get_type() == sol::type::string) {
+            mErrorMessage = Res.get<sol::error>().what();
+        } else {
+            mErrorMessage = "(unknown error; error object is not inspectable)";
+        }
+    }
+
+    void MarkAsReady();
+};
+
+struct TLuaResult {
+    struct DetachedSnapshot {
+        bool Error;
+        bool Ready;
+        std::string ErrorMessage;
+        /// Serialized Lua result. Has no reference to the Lua state, and is safe to use
+        /// from any thread that acquires it.
+        TDetachedLuaValue Result;
+        TLuaStateId StateId;
+        std::string Function;
+    };
+
+
+    TLuaResult(TLuaStateId StateId, std::string FunctionName) : mStateId(StateId), mFunction(std::move(FunctionName)) {}
+
+    /// Marks this result as success & sets it as ready, waking all threads waiting on it.
+    void MarkReadySuccess(sol::object Res);
+    /// Marks this result as successful and ready without serializing a Lua value.
+    void MarkReadySuccessNoResult();
+    /// Marks this result as erroneous & sets it as ready, waking all threads waiting on it.
+    void MarkReadyError(sol::protected_function_result Res);
+    /// Marks this result as erroneous & sets it as ready, waking all threads waiting on it.
+    void MarkReadyError(std::string Res);
+    /// Wait (suspend) until this result is ready. Use `GetDetachedSnapshot` to get the result.
+    void WaitUntilReady();
+    bool IsReady() const;
+    bool IsError() const;
+    TLuaStateId OwnerState() const;
+    void SetOwnerState(TLuaStateId StateId);
+
+    /// Returns a snapshot with, if not an error, a serialized version of the result
+    /// object. This never stores or returns raw Lua references and is safe to use
+    /// across threads.
+    DetachedSnapshot GetDetachedSnapshot() const;
+
+private:
+    mutable std::mutex mMutex {};
+    bool mReady { false };
+    bool mError { false };
+    std::string mErrorMessage;
+    TDetachedLuaValue mDetachedResult;
+    TLuaStateId mStateId;
+    std::string mFunction;
+    std::condition_variable mReadyCondition {};
+
+    TDetachedLuaValue Freeze(const sol::object& o, int depth = 0);
+
+    void SetErrorMessageFromResult(sol::protected_function_result& Res) {
+        if (Res.valid()) {
+            beammp_lua_errorf("Error was not an error");
+        }
+        if (Res.get_type() == sol::type::string) {
+            mErrorMessage = Res.get<sol::error>().what();
+        } else {
+            mErrorMessage = "(unknown error; error object is not inspectable)";
+        }
+    }
+
+    void MarkAsReady();
+};

include/TNetwork.h

@@ -1,27 +1,56 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
+#include "BoostAliases.h"
 #include "Compat.h"
+#include "TConnectionLimiter.h"
 #include "TResourceManager.h"
 #include "TServer.h"
+#include <boost/asio/ip/udp.hpp>
+
+struct TConnection;
 
 class TNetwork {
 public:
     TNetwork(TServer& Server, TPPSMonitor& PPSMonitor, TResourceManager& ResourceManager);
 
-    [[nodiscard]] bool TCPSend(TClient& c, const std::string& Data, bool IsSync = false);
-    [[nodiscard]] bool SendLarge(TClient& c, std::string Data, bool isSync = false);
-    [[nodiscard]] bool Respond(TClient& c, const std::string& MSG, bool Rel, bool isSync = false);
-    std::shared_ptr<TClient> CreateClient(SOCKET TCPSock);
-    std::string TCPRcv(TClient& c);
+    [[nodiscard]] bool TCPSend(TClient& c, const std::vector<uint8_t>& Data, bool IsSync = false);
+    [[nodiscard]] bool SendLarge(TClient& c, std::vector<uint8_t> Data, bool isSync = false);
+    [[nodiscard]] bool Respond(TClient& c, const std::vector<uint8_t>& MSG, bool Rel, bool isSync = false);
+    std::shared_ptr<TClient> CreateClient(boost::asio::ip::tcp::socket&& TCPSock);
+    std::vector<uint8_t> TCPRcv(TClient& c, bool WithTimeout = false);
     void ClientKick(TClient& c, const std::string& R);
+    void DisconnectClient(const std::weak_ptr<TClient>& c, const std::string& R);
+    void DisconnectClient(TClient& c, const std::string& R);
     [[nodiscard]] bool SyncClient(const std::weak_ptr<TClient>& c);
-    void Identify(SOCKET TCPSock);
-    void Authentication(SOCKET TCPSock);
-    [[nodiscard]] bool CheckBytes(TClient& c, int32_t BytesRcv);
+    void Identify(TConnection&& client, TConnectionLimiter::TGuard&&);
+    std::shared_ptr<TClient> Authentication(TConnection&& ClientConnection);
     void SyncResources(TClient& c);
-    [[nodiscard]] bool UDPSend(TClient& Client, std::string Data) const;
-    void SendToAll(TClient* c, const std::string& Data, bool Self, bool Rel);
+    [[nodiscard]] bool UDPSend(TClient& Client, std::vector<uint8_t> Data);
+    void SendToAll(TClient* c, const std::vector<uint8_t>& Data, bool Self, bool Rel);
     void UpdatePlayer(TClient& Client);
+    boost::system::error_code ReadWithTimeout(boost::asio::ip::tcp::socket& Socket, void* Buf, size_t Len, std::chrono::steady_clock::duration Timeout);
+    boost::system::error_code ReadWithTimeout(TConnection& Connection, void* Buf, size_t Len, std::chrono::steady_clock::duration Timeout);
+    [[nodiscard]] TConnectionLimiter::TStats GetConnectionLimiterStats() { return mConnectionLimiter.GetStats(); }
+
+    TResourceManager& ResourceManager() const { return mResourceManager; }
 
 private:
     void UDPServerMain();
@@ -29,21 +58,25 @@ private:
 
     TServer& mServer;
     TPPSMonitor& mPPSMonitor;
-    SOCKET mUDPSock {};
-    bool mShutdown { false };
+    boost::asio::ip::udp::socket mUDPSock;
     TResourceManager& mResourceManager;
     std::thread mUDPThread;
     std::thread mTCPThread;
+    std::mutex mOpenIDMutex;
+    TConnectionLimiter mConnectionLimiter;
 
-    std::string UDPRcvFromClient(sockaddr_in& client) const;
-    void HandleDownload(SOCKET TCPSock);
+    std::vector<uint8_t> UDPRcvFromClient(boost::asio::ip::udp::endpoint& ClientEndpoint);
     void OnConnect(const std::weak_ptr<TClient>& c);
     void TCPClient(const std::weak_ptr<TClient>& c);
     void Looper(const std::weak_ptr<TClient>& c);
     int OpenID();
-    void OnDisconnect(const std::weak_ptr<TClient>& ClientPtr, bool kicked);
-    void Parse(TClient& c, const std::string& Packet);
+    void OnDisconnect(const std::weak_ptr<TClient>& ClientPtr);
+    void Parse(TClient& c, const std::vector<uint8_t>& Packet);
     void SendFile(TClient& c, const std::string& Name);
-    static bool TCPSendRaw(TClient& C, SOCKET socket, char* Data, int32_t Size);
-    static void SplitLoad(TClient& c, size_t Sent, size_t Size, bool D, const std::string& Name);
+    static bool TCPSendRaw(TClient& C, boost::asio::ip::tcp::socket& socket, const uint8_t* Data, size_t Size);
+    void SendFileToClient(TClient& c, size_t Size, const std::string& Name);
+    static const uint8_t* SendSplit(TClient& c, boost::asio::ip::tcp::socket& Socket, const uint8_t* DataPtr, size_t Size);
 };
+
+std::string HashPassword(const std::string& str);
+std::vector<uint8_t> StringToVector(const std::string& Str);

include/TPPSMonitor.h

@@ -1,3 +1,21 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
 #include "Common.h"
@@ -9,6 +27,7 @@ class TNetwork;
 class TPPSMonitor : public IThreaded {
 public:
     explicit TPPSMonitor(TServer& Server);
+    virtual ~TPPSMonitor() { }
 
     void operator()() override;
 
@@ -22,6 +41,5 @@ private:
 
     TServer& mServer;
     std::optional<std::reference_wrapper<TNetwork>> mNetwork { std::nullopt };
-    bool mShutdown { false };
     int mInternalPPS { 0 };
-};
+};

include/TPluginMonitor.h

@@ -0,0 +1,40 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include "Common.h"
+#include "IThreaded.h"
+
+#include <atomic>
+#include <memory>
+#include <unordered_map>
+
+class TLuaEngine;
+
+class TPluginMonitor : IThreaded, public std::enable_shared_from_this<TPluginMonitor> {
+public:
+    TPluginMonitor(const fs::path& Path, std::shared_ptr<TLuaEngine> Engine);
+
+    void operator()();
+
+private:
+    std::shared_ptr<TLuaEngine> mEngine;
+    fs::path mPath;
+    std::unordered_map<std::string, fs::file_time_type> mFileTimes;
+};

include/TResourceManager.h

@@ -1,6 +1,25 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
 #include "Common.h"
+#include <nlohmann/json.hpp>
 
 class TResourceManager {
 public:
@@ -11,6 +30,10 @@ public:
     [[nodiscard]] std::string TrimmedList() const { return mTrimmedList; }
     [[nodiscard]] std::string FileSizes() const { return mFileSizes; }
     [[nodiscard]] int ModsLoaded() const { return mModsLoaded; }
+    [[nodiscard]] nlohmann::json GetMods() const { return mMods; }
+
+    void RefreshFiles();
+    void SetProtected(const std::string& ModName, bool Protected);
 
 private:
     size_t mMaxModSize = 0;
@@ -18,4 +41,7 @@ private:
     std::string mFileList;
     std::string mTrimmedList;
     int mModsLoaded = 0;
-};
+
+    std::mutex mModsMutex;
+    nlohmann::json mMods = nlohmann::json::array();
+};

include/TScopedTimer.h

@@ -0,0 +1,43 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <chrono>
+#include <functional>
+#include <string>
+
+class TScopedTimer {
+public:
+    TScopedTimer();
+    TScopedTimer(const std::string& Name);
+    TScopedTimer(std::function<void(size_t)> OnDestroy);
+    ~TScopedTimer();
+    auto GetElapsedTime() const {
+        auto EndTime = std::chrono::high_resolution_clock::now();
+        auto Delta = EndTime - mStartTime;
+        size_t TimeDelta = Delta / std::chrono::milliseconds(1);
+        return TimeDelta;
+    }
+
+    std::function<void(size_t /* time_ms */)> OnDestroy { nullptr };
+
+private:
+    std::chrono::high_resolution_clock::time_point mStartTime;
+    std::string Name;
+};

include/TServer.h

@@ -1,12 +1,34 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
 #include "IThreaded.h"
 #include "RWMutex.h"
+#include "TIoPollThread.h"
+#include "TScopedTimer.h"
 #include <functional>
 #include <memory>
 #include <mutex>
 #include <unordered_set>
 
+#include "BoostAliases.h"
+
 class TClient;
 class TNetwork;
 class TPPSMonitor;
@@ -15,23 +37,37 @@ class TServer final {
 public:
     using TClientSet = std::unordered_set<std::shared_ptr<TClient>>;
 
-    TServer(int argc, char** argv);
+    TServer(const std::vector<std::string_view>& Arguments);
 
     void InsertClient(const std::shared_ptr<TClient>& Ptr);
-    std::weak_ptr<TClient> InsertNewClient();
     void RemoveClient(const std::weak_ptr<TClient>&);
     // in Fn, return true to continue, return false to break
     void ForEachClient(const std::function<bool(std::weak_ptr<TClient>)>& Fn);
     size_t ClientCount() const;
 
-    static void GlobalParser(const std::weak_ptr<TClient>& Client, std::string Packet, TPPSMonitor& PPSMonitor, TNetwork& Network);
+    void GlobalParser(const std::weak_ptr<TClient>& Client, std::vector<uint8_t>&& Packet, TPPSMonitor& PPSMonitor, TNetwork& Network, bool udp);
     static void HandleEvent(TClient& c, const std::string& Data);
     RWMutex& GetClientMutex() const { return mClientsMutex; }
+
+    const TScopedTimer UptimeTimer;
+
+    io_context& IoCtx() { return mIoCtxPoller.IoCtx(); }
+
 private:
+    TIoPollThread mIoCtxPoller;
     TClientSet mClients;
     mutable RWMutex mClientsMutex;
     static void ParseVehicle(TClient& c, const std::string& Pckt, TNetwork& Network);
     static bool ShouldSpawn(TClient& c, const std::string& CarJson, int ID);
     static bool IsUnicycle(TClient& c, const std::string& CarJson);
     static void Apply(TClient& c, int VID, const std::string& pckt);
+    void HandlePosition(TClient& c, const std::string& Packet);
+};
+
+struct BufferView {
+    uint8_t* Data { nullptr };
+    size_t Size { 0 };
+    const uint8_t* data() const { return Data; }
+    uint8_t* data() { return Data; }
+    size_t size() const { return Size; }
 };

include/VehicleData.h

@@ -1,10 +1,29 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 #pragma once
 
+#include <nlohmann/json.hpp>
 #include <string>
 
 class TVehicleData final {
 public:
-    TVehicleData(int ID, std::string Data);
+    TVehicleData(int ID, nlohmann::json Data);
     ~TVehicleData();
     // We cannot delete this, since vector needs to be able to copy when it resizes.
     // Deleting this causes some wacky template errors which are hard to decipher,
@@ -14,14 +33,16 @@ public:
     [[nodiscard]] bool IsInvalid() const { return mID == -1; }
     [[nodiscard]] int ID() const { return mID; }
 
-    [[nodiscard]] std::string Data() const { return mData; }
-    void SetData(const std::string& Data) { mData = Data; }
+    [[nodiscard]] nlohmann::json Data() const { return mData; }
+    [[nodiscard]] std::string DataAsPacket(const std::string& Role, const std::string& Name, int ID) const;
+
+    void SetData(const nlohmann::json& Data) { mData = Data; }
 
     bool operator==(const TVehicleData& v) const { return mID == v.mID; }
 
 private:
     int mID { -1 };
-    std::string mData;
+    nlohmann::json mData;
 };
 
 // TODO: unused now, remove?

scripts/debian-11/1-install-deps.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+apt-get update -y
+
+apt-get install -y liblua5.3-0 liblua5.3-dev curl zip unzip tar cmake make git g++ ninja-build

scripts/debian-11/1.5-git-safe.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+git config --global --add safe.directory $(pwd)
+git config --global --add safe.directory $(pwd)/vcpkg
+git config --global --add safe.directory $(pwd)/deps/commandline

scripts/debian-11/2-configure.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+./vcpkg/bootstrap-vcpkg.sh
+
+cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--export-dynamic" -DBeamMP-Server_ENABLE_LTO=ON

scripts/debian-11/3-build-tests.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+set -ex
+
+cmake --build bin --parallel -t BeamMP-Server-tests

scripts/debian-11/3-build.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -ex
+
+cmake --build bin --parallel -t BeamMP-Server
+
+objcopy --only-keep-debug bin/BeamMP-Server bin/BeamMP-Server.debug
+objcopy --add-gnu-debuglink bin/BeamMP-Server bin/BeamMP-Server.debug
+
+strip -s bin/BeamMP-Server

scripts/debian-11/4-install-runtime-deps.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+set -ex
+
+apt-get update -y
+
+apt-get install -y liblua5.3-0 curl
+

scripts/debian-12/1-install-deps.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+apt-get update -y
+
+apt-get install -y liblua5.3-0 liblua5.3-dev curl zip unzip tar cmake make git g++ ninja-build

scripts/debian-12/1.5-git-safe.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+git config --global --add safe.directory $(pwd)
+git config --global --add safe.directory $(pwd)/vcpkg
+git config --global --add safe.directory $(pwd)/deps/commandline

scripts/debian-12/2-configure.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+./vcpkg/bootstrap-vcpkg.sh
+
+cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--export-dynamic" -DBeamMP-Server_ENABLE_LTO=ON

scripts/debian-12/3-build-tests.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+set -ex
+
+cmake --build bin --parallel -t BeamMP-Server-tests

scripts/debian-12/3-build.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -ex
+
+cmake --build bin --parallel -t BeamMP-Server
+
+objcopy --only-keep-debug bin/BeamMP-Server bin/BeamMP-Server.debug
+objcopy --add-gnu-debuglink bin/BeamMP-Server bin/BeamMP-Server.debug
+
+strip -s bin/BeamMP-Server

scripts/debian-12/4-install-runtime-deps.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+set -ex
+
+apt-get update -y
+
+apt-get install -y liblua5.3-0 curl
+

scripts/debian-13/1-install-deps.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+apt-get update -y
+
+apt-get install -y liblua5.3-0 liblua5.3-dev curl zip unzip tar cmake make git g++ ninja-build

scripts/debian-13/1.5-git-safe.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+git config --global --add safe.directory $(pwd)
+git config --global --add safe.directory $(pwd)/vcpkg
+git config --global --add safe.directory $(pwd)/deps/commandline

scripts/debian-13/2-configure.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+./vcpkg/bootstrap-vcpkg.sh
+
+cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--export-dynamic" -DBeamMP-Server_ENABLE_LTO=ON

scripts/debian-13/3-build-tests.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+set -ex
+
+cmake --build bin --parallel -t BeamMP-Server-tests

scripts/debian-13/3-build.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -ex
+
+cmake --build bin --parallel -t BeamMP-Server
+
+objcopy --only-keep-debug bin/BeamMP-Server bin/BeamMP-Server.debug
+objcopy --add-gnu-debuglink bin/BeamMP-Server bin/BeamMP-Server.debug
+
+strip -s bin/BeamMP-Server

scripts/debian-13/4-install-runtime-deps.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+set -ex
+
+apt-get update -y
+
+apt-get install -y liblua5.3-0 curl
+

scripts/ubuntu-22.04/1-install-deps.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+apt-get update -y
+
+apt-get install -y liblua5.3-0 liblua5.3-dev curl zip unzip tar cmake make git g++ ninja-build

scripts/ubuntu-22.04/1.5-git-safe.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+git config --global --add safe.directory $(pwd)
+git config --global --add safe.directory $(pwd)/vcpkg
+git config --global --add safe.directory $(pwd)/deps/commandline

scripts/ubuntu-22.04/2-configure.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+./vcpkg/bootstrap-vcpkg.sh
+
+cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--export-dynamic" -DBeamMP-Server_ENABLE_LTO=ON

scripts/ubuntu-22.04/3-build-tests.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+set -ex
+
+cmake --build bin --parallel -t BeamMP-Server-tests

scripts/ubuntu-22.04/3-build.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -ex
+
+cmake --build bin --parallel -t BeamMP-Server
+
+objcopy --only-keep-debug bin/BeamMP-Server bin/BeamMP-Server.debug
+objcopy --add-gnu-debuglink bin/BeamMP-Server bin/BeamMP-Server.debug
+
+strip -s bin/BeamMP-Server

scripts/ubuntu-22.04/4-install-runtime-deps.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+set -ex
+
+apt-get update -y
+
+apt-get install -y liblua5.3-0 curl
+

scripts/ubuntu-24.04/1-install-deps.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+apt-get update -y
+
+apt-get install -y liblua5.3-0 liblua5.3-dev curl zip unzip tar cmake make git g++ ninja-build

scripts/ubuntu-24.04/1.5-git-safe.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+git config --global --add safe.directory $(pwd)
+git config --global --add safe.directory $(pwd)/vcpkg
+git config --global --add safe.directory $(pwd)/deps/commandline

scripts/ubuntu-24.04/2-configure.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+./vcpkg/bootstrap-vcpkg.sh
+
+cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-O3 -g -Wl,-z,norelro -Wl,--hash-style=gnu -Wl,-z,noseparate-code -ffunction-sections -fdata-sections -Wl,--gc-sections -Wl,--export-dynamic" -DBeamMP-Server_ENABLE_LTO=ON

scripts/ubuntu-24.04/3-build-tests.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+set -ex
+
+cmake --build bin --parallel -t BeamMP-Server-tests

scripts/ubuntu-24.04/3-build.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -ex
+
+cmake --build bin --parallel -t BeamMP-Server
+
+objcopy --only-keep-debug bin/BeamMP-Server bin/BeamMP-Server.debug
+objcopy --add-gnu-debuglink bin/BeamMP-Server bin/BeamMP-Server.debug
+
+strip -s bin/BeamMP-Server

scripts/ubuntu-24.04/4-install-runtime-deps.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+set -ex
+
+apt-get update -y
+
+apt-get install -y liblua5.3-0 curl
+

scripts/windows/1-configure.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -ex
+
+vcpkg add port lua
+
+cmake . -B bin $1 -DCMAKE_BUILD_TYPE=Release -DBeamMP-Server_ENABLE_LTO=ON -DVCPKG_TARGET_TRIPLET=x64-windows-static

scripts/windows/2-build-tests.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+set -ex
+
+cmake --build bin --parallel -t BeamMP-Server-tests

scripts/windows/2-build.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+set -ex
+
+cmake --build bin --parallel -t BeamMP-Server --config Release

src/ArgsParser.cpp

@@ -0,0 +1,188 @@
+// BeamMP, the BeamNG.drive multiplayer mod.
+// Copyright (C) 2024 BeamMP Ltd., BeamMP team and contributors.
+//
+// BeamMP Ltd. can be contacted by electronic mail via contact@beammp.com.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero 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 Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "ArgsParser.h"
+#include "Common.h"
+#include <algorithm>
+#include <doctest/doctest.h>
+
+void ArgsParser::Parse(const std::vector<std::string_view>& ArgList) {
+    for (const auto& Arg : ArgList) {
+        if (Arg.size() > 2 && Arg.substr(0, 2) == "--") {
+            // long arg
+            if (Arg.find("=") != Arg.npos) {
+                ConsumeLongAssignment(std::string(Arg));
+            } else {
+                ConsumeLongFlag(std::string(Arg));
+            }
+        } else {
+            beammp_errorf("Error parsing commandline arguments: Supplied argument '{}' is not a valid argument and was ignored.", Arg);
+        }
+    }
+}
+
+bool ArgsParser::Verify() {
+    bool Ok = true;
+    for (const auto& RegisteredArg : mRegisteredArguments) {
+        if (RegisteredArg.Flags & Flags::REQUIRED && !FoundArgument(RegisteredArg.Names)) {
+            beammp_errorf("Error in commandline arguments: Argument '{}' is required but wasn't found.", RegisteredArg.Names.at(0));
+            Ok = false;
+            continue;
+        } else if (FoundArgument(RegisteredArg.Names)) {
+            if (RegisteredArg.Flags & Flags::HAS_VALUE) {
+                if (!GetValueOfArgument(RegisteredArg.Names).has_value()) {
+                    beammp_error("Error in commandline arguments: Argument '" + std::string(RegisteredArg.Names.at(0)) + "' expects a value, but no value was given.");
+                    Ok = false;
+                }
+            } else if (GetValueOfArgument(RegisteredArg.Names).has_value()) {
+                beammp_error("Error in commandline arguments: Argument '" + std::string(RegisteredArg.Names.at(0)) + "' does not expect a value, but one was given.");
+                Ok = false;
+            }
+        }
+    }
+    return Ok;
+}
+
+void ArgsParser::RegisterArgument(std::vector<std::string>&& ArgumentNames, int Flags) {
+    mRegisteredArguments.push_back({ ArgumentNames, Flags });
+}
+
+bool ArgsParser::FoundArgument(const std::vector<std::string>& Names) {
+    // if any of the found args match any of the names
+    return std::any_of(mFoundArgs.begin(), mFoundArgs.end(),
+        [&Names](const Argument& Arg) -> bool {
+            // if any of the names match this arg's name
+            return std::any_of(Names.begin(), Names.end(), [&Arg](const std::string& Name) -> bool {
+                return Arg.Name == Name;
+            });
+        });
+}
+
+std::optional<std::string> ArgsParser::GetValueOfArgument(const std::vector<std::string>& Names) {
+    // finds an entry which has a name that is any of the names in 'Names'
+    auto Found = std::find_if(mFoundArgs.begin(), mFoundArgs.end(), [&Names](const Argument& Arg) -> bool {
+        return std::any_of(Names.begin(), Names.end(), [&Arg](const std::string_view& Name) -> bool {
+            return Arg.Name == Name;
+        });
+    });
+    if (Found != mFoundArgs.end()) {
+        // found
+        return Found->Value;
+    } else {
+        return std::nullopt;
+    }
+}
+
+bool ArgsParser::IsRegistered(const std::string& Name) {
+    return std::any_of(mRegisteredArguments.begin(), mRegisteredArguments.end(), [&Name](const RegisteredArgument& Arg) {
+        auto Iter = std::find(Arg.Names.begin(), Arg.Names.end(), Name);
+        return Iter != Arg.Names.end();
+    });
+}
+
+void ArgsParser::ConsumeLongAssignment(const std::string& Arg) {
+    auto Value = Arg.substr(Arg.rfind("=") + 1);
+    auto Name = Arg.substr(2, Arg.rfind("=") - 2);
+    if (!IsRegistered(Name)) {
+        beammp_warn("Argument '" + Name + "' was supplied but isn't a known argument, so it is likely being ignored.");
+    }
+    mFoundArgs.push_back({ Name, Value });
+}
+
+void ArgsParser::ConsumeLongFlag(const std::string& Arg) {
+    auto Name = Arg.substr(2, Arg.rfind("=") - 2);
+    mFoundArgs.push_back({ Name, std::nullopt });
+    if (!IsRegistered(Name)) {
+        beammp_warn("Argument '" + Name + "' was supplied but isn't a known argument, so it is likely being ignored.");
+    }
+}
+
+TEST_CASE("ArgsParser") {
+    ArgsParser parser;
+
+    SUBCASE("Simple args") {
+        parser.RegisterArgument({ "a" }, ArgsParser::Flags::NONE);
+        parser.RegisterArgument({ "hello" }, ArgsParser::Flags::NONE);
+        parser.Parse({ "--a", "--hello" });
+        CHECK(parser.Verify());
+        CHECK(parser.FoundArgument({ "a" }));
+        CHECK(parser.FoundArgument({ "hello" }));
+        CHECK(parser.FoundArgument({ "a", "hello" }));
+        CHECK(!parser.FoundArgument({ "b" }));
+        CHECK(!parser.FoundArgument({ "goodbye" }));
+    }
+
+    SUBCASE("No args") {
+        parser.RegisterArgument({ "a" }, ArgsParser::Flags::NONE);
+        parser.RegisterArgument({ "hello" }, ArgsParser::Flags::NONE);
+        parser.Parse({});
+        CHECK(parser.Verify());
+        CHECK(!parser.FoundArgument({ "a" }));
+        CHECK(!parser.FoundArgument({ "hello" }));
+        CHECK(!parser.FoundArgument({ "a", "hello" }));
+        CHECK(!parser.FoundArgument({ "b" }));
+        CHECK(!parser.FoundArgument({ "goodbye" }));
+        CHECK(!parser.FoundArgument({ "" }));
+    }
+
+    SUBCASE("Value args") {
+        parser.RegisterArgument({ "a" }, ArgsParser::Flags::HAS_VALUE);
+        parser.RegisterArgument({ "hello" }, ArgsParser::Flags::HAS_VALUE);
+        parser.Parse({ "--a=5", "--hello=world" });
+        CHECK(parser.Verify());
+        REQUIRE(parser.FoundArgument({ "a" }));
+        REQUIRE(parser.FoundArgument({ "hello" }));
+        CHECK(parser.GetValueOfArgument({ "a" }).has_value());
+        CHECK(parser.GetValueOfArgument({ "a" }).value() == "5");
+        CHECK(parser.GetValueOfArgument({ "hello" }).has_value());
+        CHECK(parser.GetValueOfArgument({ "hello" }).value() == "world");
+    }
+
+    SUBCASE("Mixed value & no-value args") {
+        parser.RegisterArgument({ "a" }, ArgsParser::Flags::HAS_VALUE);
+        parser.RegisterArgument({ "hello" }, ArgsParser::Flags::NONE);
+        parser.Parse({ "--a=5", "--hello" });
+        CHECK(parser.Verify());
+        REQUIRE(parser.FoundArgument({ "a" }));
+        REQUIRE(parser.FoundArgument({ "hello" }));
+        CHECK(parser.GetValueOfArgument({ "a" }).has_value());
+        CHECK(parser.GetValueOfArgument({ "a" }).value() == "5");
+        CHECK(!parser.GetValueOfArgument({ "hello" }).has_value());
+    }
+
+    SUBCASE("Required args") {
+        SUBCASE("Two required, two present") {
+            parser.RegisterArgument({ "a" }, ArgsParser::Flags::REQUIRED);
+            parser.RegisterArgument({ "hello" }, ArgsParser::Flags::REQUIRED);
+            parser.Parse({ "--a", "--hello" });
+            CHECK(parser.Verify());
+        }
+        SUBCASE("Two required, one present") {
+            parser.RegisterArgument({ "a" }, ArgsParser::Flags::REQUIRED);
+            parser.RegisterArgument({ "hello" }, ArgsParser::Flags::REQUIRED);
+            parser.Parse({ "--a" });
+            CHECK(!parser.Verify());
+        }
+        SUBCASE("Two required, none present") {
+            parser.RegisterArgument({ "a" }, ArgsParser::Flags::REQUIRED);
+            parser.RegisterArgument({ "hello" }, ArgsParser::Flags::REQUIRED);
+            parser.Parse({ "--b" });
+            CHECK(!parser.Verify());
+        }
+    }
+}