implement GetOsName

fix mod loading

.github/workflows/rust.yml

@@ -0,0 +1,21 @@
+name: Rust
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Build
+      run: cargo build --verbose
+    - name: Run tests
+      run: cargo test --verbose

.gitignore

@@ -1,104 +1,4 @@
-# Logs
-logs
-*.log
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-lerna-debug.log*
-
-# Diagnostic reports (https://nodejs.org/api/report.html)
-report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
-
-# Runtime data
-pids
-*.pid
-*.seed
-*.pid.lock
-
-# Directory for instrumented libs generated by jscoverage/JSCover
-lib-cov
-
-# Coverage directory used by tools like istanbul
-coverage
-*.lcov
-
-# nyc test coverage
-.nyc_output
-
-# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
-.grunt
-
-# Bower dependency directory (https://bower.io/)
-bower_components
-
-# node-waf configuration
-.lock-wscript
-
-# Compiled binary addons (https://nodejs.org/api/addons.html)
-build/Release
-
-# Dependency directories
-node_modules/
-jspm_packages/
-
-# TypeScript v1 declaration files
-typings/
-
-# TypeScript cache
-*.tsbuildinfo
-
-# Optional npm cache directory
-.npm
-
-# Optional eslint cache
-.eslintcache
-
-# Microbundle cache
-.rpt2_cache/
-.rts2_cache_cjs/
-.rts2_cache_es/
-.rts2_cache_umd/
-
-# Optional REPL history
-.node_repl_history
-
-# Output of 'npm pack'
-*.tgz
-
-# Yarn Integrity file
-.yarn-integrity
-
-# dotenv environment variables file
-.env
-.env.test
-
-# parcel-bundler cache (https://parceljs.org/)
-.cache
-
-# Next.js build output
-.next
-
-# Nuxt.js build / generate output
-.nuxt
-dist
-
-# Gatsby files
-.cache/
-# Comment in the public line in if your project uses Gatsby and *not* Next.js
-# https://nextjs.org/blog/next-9-1#public-directory-support
-# public
-
-# vuepress build output
-.vuepress/dist
-
-# Serverless directories
-.serverless/
-
-# FuseBox cache
-.fusebox/
-
-# DynamoDB Local files
-.dynamodb/
-
-# TernJS port file
-.tern-port
+/target
+/.idea
+ServerConfig.toml
+beammp_rust_server.iml

BEAMMP_PROTOCOL_DOCS.md

@@ -0,0 +1,82 @@
+# BeamMP Protocol Documentation
+WIP of course, but hope it helps others
+
+## TCP
+### Basic message format
+All messages are sent as strings (?).
+Every packet starts with a 4 byte header, denoting how many bytes the packet data is.
+This means that you first must read 4 bytes from your socket, to get the header data, and afterwards read the data ready for reading.
+
+### Communication flow
+Upon client connection:
+1. Authentication
+2. Sync with client?
+
+#### Authentication
+1. C->S - Client sends the server a single byte. The BeamMP source checks for 3 letters, but I only saw C
+2. C->S - Client sends a packet containing the client version
+3. S->C - Server sends the server a regular packet containing only 1 byte: `S` (the ascii character)
+4. C->S - Client sends the server its public key
+5. S->C - Server sends the client their assigned server ID
+
+#### Syncing resources
+1. C->S - Client sends the server a packet with the code `SR`
+2. S->C - Server sends the client a packet containing a filelist containing the name and size of files to download, or "-" if it's empty
+
+### Packets
+All packets start with a single character, denoted as "Packet Code" or simply "Code" down below.
+The data mentioned is merely example data, to show the data format. This includes the code!
+Example:
+| Code | Dir | Explanation | Data |
+| ---- | --- | ----------- | ---- |
+| `C` | C->S | Client version | VC2.0 |
+
+#### Uncategorized
+| Code | Dir | Explanation | Data |
+| ---- | --- | ----------- | ---- |
+| `J` | S->C | Show a message in the top left on the clients screen | JWelcome Luuk! |
+
+#### Authentication
+| Code | Dir | Explanation | Data |
+| ---- | --- | ----------- | ---- |
+| `C` | C->S | Client version | VC2.0 |
+| `S` | S->C | Confirmation? | None |
+| `D` | C->S | Start download phase? Seems unused from testing | None |
+| `P` | S->C | Send client their assigned ID | P123 |
+
+#### Syncing resources
+| Code | Dir | Explanation | Data |
+| ---- | --- | ----------- | ---- |
+| `SR` | C->S | Client requests a list containing all mods, containing their name and file size | None |
+| `f` | C->S | Client requests file with name | fcool_mod.zip |
+| `-` | S->C | Technically not a packet, see [Syncing Resources](https://github.com/Lucky4Luuk/beammp_rust_server/blob/master/BEAMMP_PROTOCOL_DOCS.md#syncing-resources), step 2. | * |
+
+#### Syncing client state
+| Code | Dir | Explanation | Data |
+| ---- | --- | ----------- | ---- |
+| `H` | C->S | Client requests a full sync with the server state | None |
+
+### Vehicle packets
+| Code | Dir | Explanation | Data |
+| ---- | --- | ----------- | ---- |
+| `Os` | C->S | Client informs server they are spawning a car | Os:C_ID:{car_json} |
+| `Os` | S->C | Server sends this packet to all clients, informing them a client has spawned a car | Os:C_ROLES:C_NAME:C_ID-CAR_ID:CAR_JSON |
+| `Or` | C->S | Client informs server they are respawning their car | Or:C_ID-CAR_ID:{respawn_json} |
+| `Or` | S->C | Server informs all other clients that a client is respawning their car | Or:C_ID-CAR_ID:{respawn_json} |
+| `Od` | C->S | Client informs server they are deleting their car | Od:C_ID-CAR_ID |
+| `Od` | S->C | Server informs all other clients that a client is deleting their car | Od:C_ID-CAR_ID |
+| `Oc` | C->S | Client informs server they are editing their car | Oc:?... |
+| `Oc` | S->C | Server informs all other clients that a client has edited their car | Oc:?... |
+
+## UDP
+### Packets
+#### Uncategorized
+| Code | Dir | Explanation | Data |
+| ---- | --- | ----------- | ---- |
+| `p` | C->S | Ping! | None |
+| `p` | S->C | Pong! | None |
+
+#### Vehicle related
+| Code | Dir | Explanation | Data |
+| ---- | --- | ----------- | ---- |
+| `Zp` | C->S | Positional packet | Zp:C_ID-CAR_ID:{transform_json} |

Cargo.toml

@@ -0,0 +1,36 @@
+[package]
+name = "beammp_rust_server"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+log = "0.4"
+pretty_env_logger = "0.4.0"
+
+argh = "0.1.12"
+
+lazy_static = "1"
+
+anyhow = "1.0.66"
+glam = "0.24.2"
+num_enum = "0.5.7"
+
+async-trait = "0.1.58"
+tokio = { version = "1", features = ["macros", "rt", "rt-multi-thread", "net", "io-util", "sync"] }
+futures = "0.3.29"
+
+reqwest = { version = "0.11", default-features = false, features = ["json", "rustls-tls"] }
+serde = { version = "1.0", features = ["derive"] }
+serde-aux = "4.2.0"
+serde_json = "*"
+
+toml = "0.5"
+flate2 = "1.0"
+
+mlua = { version = "0.9.1", features = ["lua54", "vendored", "send"] }
+
+ratatui = "0.24.0"
+crossterm = "0.27.0"
+uuid = "1.6.1"

ExampleServerConfig.toml

@@ -0,0 +1,37 @@
+# This is the BeamMP-Server config file.
+# Help & Documentation: `https://wiki.beammp.com/en/home/server-maintenance`
+# IMPORTANT: Fill in the AuthKey with the key you got from `https://beammp.com/k/dashboard` on the left under "Keys"
+
+[General]
+Name = "bepis big gaming"
+Port = 30814
+# AuthKey has to be filled out in order to run the server
+AuthKey = "test"
+# Whether to log chat messages in the console / log
+LogChat = true
+Debug = false
+Private = true
+MaxCars = 20
+MaxPlayers = 800000
+Map = "/levels/west_coast_usa/info.json"
+Description = "BeamMP Default Description"
+ResourceFolder = "Resources"
+
+[Misc]
+# Hides the periodic update message which notifies you of a new server version. You should really keep this on and always update as soon as possible. For more information visit https://wiki.beammp.com/en/home/server-maintenance#updating-the-server. An update message will always appear at startup regardless.
+ImScaredOfUpdates = false
+# If SendErrors is `true`, the server will send helpful info about crashes and other issues back to the BeamMP developers. This info may include your config, who is on your server at the time of the error, and similar general information. This kind of data is vital in helping us diagnose and fix issues faster. This has no impact on server performance. You can opt-out of this system by setting this to `false`
+SendErrorsShowMessage = true
+# You can turn on/off the SendErrors message you get on startup here
+SendErrors = true
+
+[HTTP]
+# Which IP to listen on. Pick 0.0.0.0 for a public-facing server with no specific IP, and 127.0.0.1 or 'localhost' for a local server.
+HTTPServerIP = "127.0.0.1"
+SSLKeyPath = "./.ssl/HttpServer/key.pem"
+SSLCertPath = "./.ssl/HttpServer/cert.pem"
+HTTPServerPort = 8080
+# Recommended to have enabled for servers which face the internet. With SSL the server will serve https and requires valid key and cert files
+UseSSL = false
+# Enables the internal HTTP server
+HTTPServerEnabled = false

LICENSE.md

@@ -0,0 +1,661 @@
+GNU AFFERO GENERAL PUBLIC LICENSE
+   Version 3, 19 November 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. <http://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.
+
+The precise terms and conditions for copying, distribution and
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+
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+How to Apply These Terms to Your New Programs
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+possible use to the public, the best way to achieve this is to make it
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+
+BeamMP Server implemented in Rust
+Copyright (C) 2023 - Luuk van Oijen
+
+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.
+
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+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.
+
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+along with this program.  If not, see <http://www.gnu.org/licenses/>.
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+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
+<http://www.gnu.org/licenses/>.

README.md

@@ -1 +1,5 @@
-# BeamNG-MP-Server
+# BeamMP Server
+A BeamMP server implementation in Rust, meant to (hopefully) replace the official server implementation one day.
+
+## Features
+TODO

Resources/Server/TestPlugin/main.lua

@@ -0,0 +1,61 @@
+print("test from lua")
+print("Player count: " .. MP.GetPlayerCount())
+
+function onPluginLoaded()
+    print("HI!")
+end
+
+function onShutdown()
+    print("BYE!")
+end
+
+function onPlayerAuthenticated(joined_name, role, is_guest, identifiers)
+    print("hi welcome mista " .. joined_name)
+    print("u a guest? " .. tostring(is_guest))
+
+    print("current players:")
+    for id, name in pairs(MP.GetPlayers()) do
+        print("- [" .. id .. "]" .. name)
+    end
+    print("yipee")
+
+    print("Player count: " .. MP.GetPlayerCount())
+
+    for key, value in pairs(identifiers) do
+        print(key .. ": " .. value)
+    end
+
+    -- print("now trying with getting it ourself")
+    -- for key, value in pairs(MP.GetPlayerIdentifiers(pid)) do
+    --     print(key .. ": " .. value)
+    -- end
+
+    return 0 -- 0 = do not cancel
+end
+
+function onPlayerDisconnect(pid, name, identifiers)
+    -- Player is already gone here, so for now, player data is no longer
+    -- requestable for player with the id `pid`
+    print("Player " .. name .. " (" .. pid .. ") has left!")
+end
+
+function onChatMessage(pid, name, message)
+    MP.SendChatMessage(-1, "i hate this " .. name .. " guy!")
+    MP.SendChatMessage(pid, "hiii babe i didnt mean it :3")
+    print("" .. name .. " (" .. pid .. "): " .. message)
+
+    print("identifiers:")
+    for key, value in pairs(MP.GetPlayerIdentifiers(pid)) do
+        print(key .. ": " .. value)
+    end
+
+    print("unknown identifiers (nil): " .. tostring(MP.GetPlayerIdentifiers(100)))
+
+    return message .. " (edited by lua!!!)"
+end
+
+MP.RegisterEventHandler("onInit", "onPluginLoaded")
+MP.RegisterEventHandler("onShutdown", "onShutdown")
+MP.RegisterEventHandler("onPlayerAuth", "onPlayerAuthenticated")
+MP.RegisterEventHandler("onPlayerDisconnect", "onPlayerDisconnect")
+MP.RegisterEventHandler("onChatMessage", "onChatMessage")

index.js

@@ -1,345 +0,0 @@
-// Server Settings!
-var map = "";
-let _VERSION = "0.0.3"
-let UDPExpireTime = 30// In Seconds
-
-const net = require('net');
-const uuidv4 = require('uuid/v4');
-const args = require('minimist')(process.argv.slice(2));
-const chalk = require("chalk")
-
-//console.log(args.port)
-if (args.port) {
-  var tcpport = args.port;
-} else {
-  var tcpport = 30813;
-}
-
-var udpport = tcpport + 1;
-var wsport = tcpport + 2;
-const host = '0.0.0.0';
-
-//==========================================================
-//              WebSocket Server
-//==========================================================
-
-const WebSocket = require('ws');
-
-const wss = new WebSocket.Server({ port: wsport });
-
-wss.on('connection', function connection(ws) {
-  ws.on('message', function incoming(message) {
-    console.log('[WS] received: %s', message);
-    wss.clients.forEach(function each(client) {
-      if (client.readyState === WebSocket.OPEN) {
-        client.send(message);
-      }
-    });
-  });
-
-  ws.send('Welcome!');
-});
-console.log(chalk.cyan('[WS]')+'  Server listening on 0.0.0.0:' + wsport);
-
-//==========================================================
-//              TCP Server
-//==========================================================
-
-const TCPserver = net.createServer();
-TCPserver.listen(tcpport, () => {
-  console.log(chalk.green('[TCP]')+' Server listening on 0.0.0.0:' + tcpport);
-});
-
-let sockets = [];
-let players = [];
-let names = [];
-let vehicles = [];
-
-TCPserver.on('connection', function(sock) {
-  console.log(chalk.green('[TCP]')+' CONNECTED: ' + sock.remoteAddress + ':' + sock.remotePort);
-  sockets.push(sock);
-
-  var player = {};
-  player.remoteAddress = sock.remoteAddress;
-  player.remotePort = sock.remotePort;
-  player.nickname = "New User, Loading...";
-  player.id = uuidv4();
-  player.currentVehID = 0;
-  players.push(player);
-
-  sock.write('HOLA'+player.id+'\n');
-  if (map == "") {
-    sock.write("MAPS\n");
-  } else {
-    sock.write("MAPC"+map+'\n')
-  }
-  sock.write("VCHK"+_VERSION+'\n')
-
-  sock.on('data', function(data) {
-    // Write the data back to all the connected, the client will receive it as data from the server
-    var str = data.toString();
-    data = str.trim(); //replace(/\r?\n|\r/g, "");
-    var code = data.substring(0, 4);
-    var message = data.substr(4);
-
-    if (code != "PING") {
-      //console.log(code)
-  	}
-  	//if (data.length > 4) {
-  	  //console.log(data.length)
-  	//}
-
-    switch (code) {
-      case "PING":
-        //console.log("Ping Received")
-        sock.write('PONG\n');
-        break;
-      case "CHAT":
-        sockets.forEach(function(socket, index, array) { // Send update to all clients
-          socket.write(data+'\n');
-        });
-        break;
-      case "MAPS":
-        map = message;
-        console.log("Setting map to: "+map);
-        sock.write("MAPC"+map+'\n');
-        break;
-      case "USER":
-        players.forEach(function(player, index, array) {
-          if (player.remoteAddress == sock.remoteAddress && player.remotePort == sock.remotePort) {
-            console.log("Player Found ("+player.id+"), setting nickname("+data.substr(4)+")");
-            player.nickname = ""+data.substr(4)+"";
-            sockets.forEach(function(socket, index, array) { // Send update to all clients
-              socket.write('PLST'+JSON.stringify(players)+'\n');
-              socket.write('SMSG'+data.substr(4)+' Just Joined the Session.\n');
-            });
-          }
-        });
-        break;
-      case "QUIT":
-      case "2001":
-        let index = sockets.findIndex(function(o) {
-          return o.remoteAddress === sock.remoteAddress && o.remotePort === sock.remotePort;
-        })
-        if (index !== -1) sockets.splice(index, 1);
-        console.log('CLOSED: ' + sock.remoteAddress + ' ' + sock.remotePort);
-        break;
-      case "U-VI":
-      case "U-VE":
-      case "U-VN":
-      case "U-VP":
-      case "U-VL":
-      case "U-VR":
-      case "U-VV":
-        //console.log(data)
-        //players.forEach(function(player, index, array) {
-        //if (player.remoteAddress != sock.remoteAddress) {
-        //console.log(player.remoteAddress+' != '+sock.remoteAddress+' Is not the same so we should send?')
-        //console.log("Got Update to send!")
-        sockets.forEach(function(socket, index, array) { // Send update to all clients
-          //console.log(socket.remotePort+' != '+sock.remotePort+' Is not the same so we should send?')
-          if ((sock.remoteAddress != socket.remoteAddress && sock.remotePort != socket.remotePort) || (sock.remoteAddress == socket.remoteAddress && sock.remotePort != socket.remotePort)) {
-            socket.write(data+'\n');
-          }
-        });
-        //}
-        //});
-        break;
-      case "U-VC":
-        sockets.forEach(function(socket, index, array) { // Send update to all clients
-          socket.write(data+'\n');
-        });
-        break;
-      case "U-NV":
-        console.log(message)
-        var vid = uuidv4();
-
-        break;
-      case "C-VS": // Client has changed vehicle. lets update our records.
-        console.log(message)
-        players.forEach(function(player, index, array) {
-          if (player.currentVehID != message && player.remoteAddress == sock.remoteAddress && player.remotePort == sock.remotePort) {
-            console.log(chalk.green('[TCP]')+" Player Found ("+player.id+"), updating current vehile("+message+")");
-            player.currentVehID = message;
-          }
-        });
-        break;
-      default:
-        console.log(chalk.green('[TCP]')+' Unknown / unhandled data from:' + sock.remoteAddress);
-        console.log(chalk.green('[TCP]')+' Data -> ' + data);
-        sockets.forEach(function(socket, index, array) { // Send update to all clients
-          //if ((sock.remoteAddress != socket.remoteAddress && sock.remotePort != socket.remotePort) || (sock.remoteAddress == socket.remoteAddress && sock.remotePort != socket.remotePort)) {
-            socket.write(data+'\n');
-          //}
-        });
-        break;
-    }
-    sockets.forEach(function(sock, index, array) {
-      //sock.write(sock.remoteAddress + ':' + sock.remotePort + " said " + data + '\n');
-    });
-  });
-
-  // Add a 'close' event handler to this instance of socket
-  sock.on('close', function(data) {
-    var index = players.findIndex(function(o) {
-      return o.remoteAddress === sock.remoteAddress && o.remotePort === sock.remotePort;
-    })
-    if (index !== -1) sockets.splice(index, 1);
-     index = sockets.findIndex(function(o) {
-      return o.remoteAddress === sock.remoteAddress && o.remotePort === sock.remotePort;
-    })
-    if (index !== -1) sockets.splice(index, 1);
-    console.log('CLOSED: ' + sock.remoteAddress + ' ' + sock.remotePort);
-    players = removePlayer(players, sock.remoteAddress);
-    console.log("Player list now holds: "+JSON.stringify(players));
-    sockets.forEach(function(socket, index, array) { // Send update to all clients
-      socket.write('PLST'+JSON.stringify(players)+'\n');
-    });
-  });
-
-  sock.on('error', (err) => {
-    // handle errors here
-    if (err.code == "ECONNRESET") {
-      console.error(chalk.red("ERROR ")+"Connection Reset for player: ");
-      players.forEach(function(player, index, array) {
-        if (player.remoteAddress == sock.remoteAddress && player.remotePort == sock.remotePort) {
-          console.error(+player.nickname+" ("+player.id+")");
-          console.error(chalk.red("ERROR ")+"End Error.");
-        }
-      });
-    } else {
-      console.error("Sock Error");
-      console.error(err);
-      throw err;
-    }
-  });
-});
-
-TCPserver.on('error', (err) => {
-  // handle errors here
-  console.error("TCPserver Error");
-  console.error(err);
-  throw err;
-});
-
-function removePlayer(array, ip) {
-  return array.filter(player => player.remoteAddress != ip);
-}
-
-//==========================================================
-//              UDP Server
-//==========================================================
-
-var clients = {};
-var intervalTime = UDPExpireTime*2*1000;
-
-setInterval(function() {
-  console.log(clients);
-  for (var client in clients) {
-    var lastupdate = clients[client];
-    var millis = Date.now() - lastupdate;
-    var t = Math.floor(millis/1000)
-    if (t > UDPExpireTime) {
-      console.warn("Found Old Client: "+client)
-      delete clients[client];
-    }
-  }
-}, intervalTime);
-
-function updateClient (rinfo) {
-  for (var client in clients) {
-    client = JSON.parse(client);
-    var address = client[0];
-    var port = client[1];
-    if (port == rinfo.port && address == rinfo.address) {
-      client
-    }
-  }
-}
-
-var dgram = require('dgram');
-var UDPserver = dgram.createSocket('udp4');
-
-function UDPsend(message, info) {
-  UDPserver.send(message, 0, message.length, info.port, info.address, function(error){
-    if (error) {
-      console.log("ERROR");
-      console.log(error);
-      client.close();
-    };
-  });
-}
-
-UDPserver.on('listening', function() {
-  var address = UDPserver.address();
-  console.log(chalk.rgb(123, 45, 67)('[UDP]')+' Server listening on ' + address.address + ':' + address.port);
-});
-
-UDPserver.on('message',function(msg,rinfo){
-  clients[JSON.stringify([rinfo.address, rinfo.port])] = Date.now();
-  //sending msg
-  var str = msg.toString();
-  data = str.trim(); //replace(/\r?\n|\r/g, "");
-  var code = data.substring(0, 4);
-  //if (code != "PING") {
-    //console.log(msg.toString());
-  //}
-  switch (code) {
-    case "PING":
-      UDPsend("PONG", rinfo)
-      break;
-    case "U-VC":
-      for (var client in clients) {
-        client = JSON.parse(client);
-        var port = client[1];
-        var address = client[0];
-        UDPserver.send(msg, 0, msg.length, port, address, function(error){
-          if (error) {
-            console.log("ERROR");
-            console.log(error);
-            client.close();
-          };
-        });
-      }
-      break;
-    case "U-VR":
-    case "U-VL":
-    case "U-VP":
-    case "U-VN":
-    case "U-VE":
-    case "U-VI":
-      for (var client in clients) {
-        client = JSON.parse(client);
-        var port = client[1];
-        var address = client[0];
-        if (port != rinfo.port && address != rinfo.address) {
-          UDPserver.send(msg, 0, msg.length, port, address, function(error){
-            if (error) {
-              console.log("ERROR");
-              console.log(error);
-              client.close();
-            };
-          });
-        }
-      }
-      break;
-    default:
-      // Unhandled data, this at the moment includes the extra packets of vehicles so it needs to be here until it is handled correctly
-      for (var client in clients) {
-        client = JSON.parse(client);
-        var port = client[1];
-        var address = client[0];
-        UDPserver.send(msg, 0, msg.length, port, address, function(error){
-          if (error) {
-            console.log("ERROR");
-            console.log(error);
-            client.close();
-          };
-        });
-      }
-      //console.log(chalk.rgb(123, 45, 67)('[UDP]')+' Data received from client : ' + msg.toString());
-      //console.log(chalk.rgb(123, 45, 67)('[UDP]')+' Received %d bytes from %s:%d\n',msg.length, rinfo.address, rinfo.port);
-  }
-});
-
-UDPserver.bind(Number(udpport));

package.json

@@ -1,20 +0,0 @@
-{
-  "name": "beamng.drive-mp-server",
-  "version": "1.0.0",
-  "description": "",
-  "main": "main.js",
-  "scripts": {
-    "start": "electron ."
-  },
-  "author": "Mitch Durso",
-  "license": "ISC",
-  "devDependencies": {
-    "electron": "^6.0.7"
-  },
-  "dependencies": {
-    "chalk": "^3.0.0",
-    "minimist": "^1.2.0",
-    "uuid": "^3.3.3",
-    "ws": "^7.2.1"
-  }
-}

src/config.rs

@@ -0,0 +1,76 @@
+use std::path::{Path, PathBuf};
+use serde::Deserialize;
+use uuid::Uuid;
+use crate::fs_util;
+
+#[derive(Deserialize)]
+pub struct Config {
+    #[serde(skip)] // Skipping uses Default::default, which makes a new vector for us :)
+    pub mods: Vec<(String, usize)>,
+
+    #[serde(rename = "General")]
+    pub general: GeneralSettings,
+}
+
+#[derive(Deserialize)]
+pub struct GeneralSettings {
+    #[serde(rename = "Port")]
+    pub port: Option<u16>,
+
+    #[serde(rename = "Name")]
+    pub name: String,
+
+    #[serde(rename = "Description")]
+    pub description: String,
+
+    #[serde(rename = "AuthKey")]
+    pub auth_key: Option<String>,
+
+    #[serde(rename = "MaxCars")]
+    pub max_cars: Option<u8>,
+
+    #[serde(rename = "MaxPlayers")]
+    pub max_players: usize,
+
+    #[serde(rename = "Private")]
+    pub private: bool,
+
+    #[serde(rename = "Map")]
+    pub map: String,
+
+    #[serde(rename = "ResourceFolder")]
+    pub resource_folder: String,
+
+    #[serde(rename = "Debug")]
+    pub debug: bool,
+
+    // Options below are not yet supported
+    #[serde(rename = "LogChat")]
+    pub log_chat: bool,
+}
+
+impl GeneralSettings {
+    pub fn is_auth_key_valid(&self) -> bool {
+        if let Some(auth_key) = &self.auth_key {
+            Uuid::parse_str(auth_key.as_str()).is_ok()
+        } else {
+            false
+        }
+    }
+
+    /// Returns the client resource path, and ensures it exists.
+    /// Default is Resources/Client.
+    pub fn get_client_resource_folder(&self) -> anyhow::Result<String> {
+        let res_client_path = Path::new(self.resource_folder.as_str()).join("Client");
+        fs_util::ensure_path_exists(&res_client_path)?;
+        Ok(fs_util::path_to_string(res_client_path))
+    }
+
+    /// Returns the server resource path, and ensures it exists.
+    /// Default is Resources/Server.
+    pub fn get_server_resource_folder(&self) -> anyhow::Result<String> {
+        let res_server_path = Path::new(self.resource_folder.as_str()).join("Server");
+        fs_util::ensure_path_exists(&res_server_path)?;
+        Ok(fs_util::path_to_string(res_server_path))
+    }
+}

src/fs_util.rs

@@ -0,0 +1,22 @@
+use std::path::{Path, PathBuf};
+
+/// Ensures the given path exists by creating it if it doesn't.
+pub fn ensure_path_exists(path: &PathBuf) -> anyhow::Result<()> {
+    if !path.exists() {
+        debug!("Path {:?} doesn't exist, creating it", path);
+        std::fs::create_dir_all(path)?;
+    }
+    Ok(())
+}
+
+/// Joins a parent folder and a sub-path, resolving the subpath beforehand to ensure that
+/// the resulting path is still within the parent folder, regardless of ".." in the sub-path.
+pub fn join_path_secure(parent: &Path, sub: &Path) -> anyhow::Result<PathBuf> {
+    Ok(parent.join(sub.file_name().unwrap_or("".as_ref())))
+}
+
+/// Converts a PathBuf into a String in a lossy way. This is generally the way we want to do it
+/// in the server.
+pub fn path_to_string(path: PathBuf) -> String {
+    path.into_os_string().to_string_lossy().to_string()
+}

src/heartbeat.rs

@@ -0,0 +1,80 @@
+use serde::Serialize;
+use tokio::sync::mpsc::Receiver;
+
+#[derive(Serialize)]
+struct HeartbeatInfo {
+    uuid: String,
+    players: usize,
+    maxplayers: usize,
+    port: u16,
+    map: String,
+    private: String, // Needs to be either "true" or "false"
+    version: String,
+    clientversion: String,
+    name: String,
+    modlist: String,
+    modstotalsize: usize,
+    modstotal: usize,
+    playerslist: String,
+    desc: String,
+}
+
+pub async fn backend_heartbeat(config: std::sync::Arc<crate::config::Config>, mut hb_rx: Receiver<crate::server::ServerStatus>) {
+    if !config.general.is_auth_key_valid() {
+        if config.general.private {
+            warn!("AuthKey has invalid format. This is not an error, since your server is private.");
+        } else {
+            error!("AuthKey has invalid format. The server will not appear on the server list.");
+        }
+        // FIXME: The heartbeat should be started if the config is ever changed/reloaded.
+        return;
+    }
+    let mut info = HeartbeatInfo {
+        uuid: config.general.auth_key.clone().unwrap_or(String::from("Unknown name!")),
+        players: 0,
+        maxplayers: config.general.max_players,
+        port: config.general.port.unwrap_or(30814),
+        map: config.general.map.clone(),
+        private: if config.general.private { String::from("true") } else { String::from("false") },
+        version: String::from("3.3.0"), // TODO: Don't hardcode this
+        clientversion: String::from("2.0"), // TODO: What? I think for now I can fill in 2.0
+        name: config.general.name.clone(),
+        modlist: String::from("-"), // TODO: Implement this
+        modstotalsize: 0, // TODO: Implement this
+        modstotal: 0, // TODO: Implement this
+        playerslist: String::new(),
+        desc: config.general.description.clone(),
+    };
+
+    let mut interval = tokio::time::interval(tokio::time::Duration::from_secs(30));
+    loop {
+        interval.tick().await;
+
+        tokio::select! {
+            _ = heartbeat_post(&info) => {}
+            status = hb_rx.recv() => {
+                if let Some(status) = status {
+                    trace!("status update: {:?}", status);
+                    info.players = status.player_count;
+                    info.playerslist = status.player_list.iter().map(|(_id, name)| format!("{};", name)).collect();
+                }
+            }
+        }
+    }
+}
+
+async fn heartbeat_post(heartbeat_info: &HeartbeatInfo) {
+    match reqwest::Client::builder()
+        .local_address("0.0.0.0".parse::<std::net::IpAddr>().unwrap())
+        .build().unwrap()
+        .post("https://backend.beammp.com/heartbeat")
+        .form(heartbeat_info)
+        .send()
+        .await
+    {
+        Ok(resp) => {
+            trace!("heartbeat response:\n{:?}", resp.text().await);
+        },
+        Err(e) => error!("Heartbeat error occured: {e}"),
+    }
+}

src/logger.rs

@@ -0,0 +1,44 @@
+use log::{Record, Level, Metadata, SetLoggerError, LevelFilter};
+use std::sync::Mutex;
+
+lazy_static! {
+    static ref LOG_BUFFER: Mutex<Vec<(Level, String)>> = Mutex::new(Vec::new());
+}
+
+struct BufferedLogger;
+
+impl log::Log for BufferedLogger {
+    fn enabled(&self, metadata: &Metadata) -> bool {
+        let mut enabled = true;
+        if metadata.level() != Level::Error {
+            if metadata.target().starts_with("rustls") {
+                enabled = false;
+            }
+        }
+        enabled
+    }
+
+    fn log(&self, record: &Record) {
+        if self.enabled(record.metadata()) {
+            let msg = format!("{}", record.args());
+            let mut lock = LOG_BUFFER.lock().expect("Logging lock poisoned!");
+            lock.push((record.level(), msg));
+        }
+    }
+
+    fn flush(&self) {}
+}
+
+static LOGGER: BufferedLogger = BufferedLogger;
+
+pub fn init(filter: LevelFilter) -> Result<(), SetLoggerError> {
+    log::set_logger(&LOGGER)
+        .map(|()| log::set_max_level(filter))
+}
+
+pub async fn drain_log_buffer() -> Vec<(Level, String)> {
+    let mut lock = LOG_BUFFER.lock().expect("Logging lock poisoned!");
+    let v = lock.drain(..).collect();
+    drop(lock);
+    v
+}

src/main.rs

@@ -0,0 +1,165 @@
+#[macro_use] extern crate log;
+#[macro_use] extern crate async_trait;
+#[macro_use] extern crate lazy_static;
+
+use std::path::Path;
+use argh::FromArgs;
+
+use std::sync::Arc;
+use tokio::sync::mpsc;
+
+mod logger;
+mod tui;
+mod server;
+mod config;
+mod heartbeat;
+mod fs_util;
+
+#[derive(FromArgs)]
+/// BeamMP Server v3.3.0
+struct Args {
+    /// disables the TUI and shows a simple console log instead
+    #[argh(switch)]
+    disable_tui: bool,
+}
+
+#[tokio::main]
+async fn main() {
+    let args: Args = argh::from_env();
+
+    let mut user_config: config::Config = toml::from_str(
+            &std::fs::read_to_string("ServerConfig.toml")
+                .map_err(|_| error!("Failed to read config file!"))
+                .expect("Failed to read config file!")
+        )
+        .map_err(|_| eprintln!("Failed to parse config file!"))
+        .expect("Failed to parse config file!");
+
+    let level_filter = if user_config.general.debug { log::LevelFilter::max() } else { log::LevelFilter::Info };
+    if !args.disable_tui {
+        logger::init(level_filter).expect("Failed to enable logger!");
+    } else {
+        pretty_env_logger::formatted_timed_builder()
+            .filter_level(level_filter)
+            .filter_module("rustls", log::LevelFilter::Error)
+            .init();
+    }
+
+    let client_resources = user_config.general
+        .get_client_resource_folder()
+        .expect("Failed to create the client resource folder");
+
+    for entry in std::fs::read_dir(client_resources).expect("Failed to read client resource folder!") {
+        if let Ok(entry) = entry {
+            if entry.path().is_file() {
+                if let Ok(metadata) = entry.metadata() {
+                    if let Some(filename) = entry.path().file_name().map(|s| s.to_string_lossy()) {
+                        let mut name = filename.to_string();
+                        if !name.starts_with("/") {
+                            name = format!("/{name}");
+                        }
+                        user_config.mods.push((name, metadata.len() as usize));
+                    }
+                }
+            }
+        }
+    }
+
+    debug!("Mods: {:?}", user_config.mods);
+
+    let user_config = Arc::new(user_config);
+
+    let (cmd_tx, cmd_rx) = mpsc::channel(100);
+    let (status_tx, status_rx) = mpsc::channel(100);
+
+    if !args.disable_tui {
+        tokio::spawn(tui::tui_main(user_config.clone(), cmd_tx, status_rx));
+    }
+
+    server_main(user_config, cmd_rx, status_tx).await;
+}
+
+async fn server_main(user_config: Arc<config::Config>, mut cmd_rx: mpsc::Receiver<Vec<String>>, status_tx: mpsc::Sender<server::ServerStatus>) {
+    let (hb_tx, hb_rx) = mpsc::channel(100);
+
+    tokio::spawn(heartbeat::backend_heartbeat(user_config.clone(), hb_rx));
+
+    let mut server = server::Server::new(user_config)
+        .await
+        .map_err(|e| error!("{:?}", e))
+        .expect("Failed to start server!");
+
+    let mut status = server.get_server_status();
+    hb_tx.send(status.clone()).await;
+    status_tx.send(status.clone()).await;
+    'server: loop {
+        // TODO: Error handling
+        if server.clients.len() > 0 {
+            tokio::select! {
+                ret = server::read_tcp(&mut server.clients) => {
+                    match ret {
+                        Ok(ret) => if let Some((index, packet)) = ret {
+                            server.process_tcp(index, packet).await;
+                        },
+                        Err(e) => error!("Error: {e}"),
+                    }
+                }
+                ret = server::read_udp(&mut server.udp_socket) => {
+                    if let Some((addr, packet)) = ret {
+                        server.process_udp(addr, packet).await;
+                    }
+                }
+                _ = tokio::time::sleep(tokio::time::Duration::from_millis(50)) => {}
+            }
+        } else {
+            // TODO: Scuffed?
+            tokio::time::sleep(tokio::time::Duration::from_millis(150)).await;
+        }
+
+        if let Err(e) = server.process().await {
+            error!("{:?}", e);
+        }
+
+        let new_status = server.get_server_status();
+
+        if status != new_status {
+            status = new_status;
+            hb_tx.send(status.clone()).await;
+            status_tx.send(status.clone()).await;
+        }
+
+        // Process commands
+        match cmd_rx.try_recv() {
+            Ok(cmd) => if cmd.len() > 0 {
+                match cmd[0].as_str() {
+                    "exit" => {
+                        server.close().await;
+                        break 'server;
+                    },
+                    "players" => {
+                        let mut pl = "Players:\n".to_string();
+                        for (i, (id, player)) in status.player_list.iter().enumerate() {
+                            pl.push_str(&format!("\t[{: >2}] - {player}", id));
+                            if i + 1 < status.player_list.len() {
+                                pl.push('\n');
+                            }
+                        }
+                        info!("{}", pl);
+                    },
+                    "say" => {
+                        let msg = cmd[1..].iter().map(|s| s.as_str()).collect::<Vec<&str>>().join(" ");
+                        server.send_chat_message(&msg, None).await;
+                    },
+                    _ => info!("Unknown command!"),
+                }
+            } else {
+                // what!
+            },
+            Err(mpsc::error::TryRecvError::Empty) => {},
+            Err(e) => {
+                error!("Error: {e}");
+                break;
+            },
+        }
+    }
+}

src/server/backend.rs

@@ -0,0 +1,19 @@
+use serde::de::DeserializeOwned;
+use std::collections::HashMap;
+
+static BACKEND_URL: &'static str = "backend.beammp.com";
+static AUTH_URL: &'static str = "auth.beammp.com";
+
+pub async fn authentication_request<R: DeserializeOwned>(
+    target: &str,
+    map: HashMap<String, String>,
+) -> anyhow::Result<R> {
+    let client = reqwest::Client::new();
+    let resp = client
+        .post(format!("https://{}/{}", AUTH_URL, target))
+        .json(&map)
+        .send()
+        .await?;
+    // panic!("json: {:?}", resp.text().await);
+    Ok(resp.json().await?)
+}

src/server/car.rs

@@ -0,0 +1,43 @@
+use glam::*;
+
+use std::time::Instant;
+
+#[derive(Default, Clone, Debug)]
+pub struct Car {
+    pub car_json: String,
+
+    pub pos: DVec3,
+    pub rot: DQuat,
+    pub vel: DVec3,
+    pub rvel: DVec3,
+    pub tim: f64,
+    pub ping: f64,
+    pub last_pos_update: Option<Instant>,
+}
+
+impl Car {
+    pub fn new(car_json: String) -> Self {
+        Self {
+            car_json: car_json,
+
+            ..Default::default()
+        }
+    }
+
+    pub fn raw_position(&self) -> DVec3 {
+        self.pos
+    }
+
+    pub fn raw_rotation(&self) -> DQuat {
+        self.rot
+    }
+
+    pub fn position(&self) -> DVec3 {
+        self.pos + self.vel * self.last_pos_update.map(|t| t.elapsed().as_secs_f64()).unwrap_or(0.0)
+    }
+
+    pub fn rotation(&self) -> DQuat {
+        let t = self.last_pos_update.map(|t| t.elapsed().as_secs_f64()).unwrap_or(0.0);
+        self.rot + DQuat::from_euler(glam::EulerRot::YXZ, self.rvel.x * t, self.rvel.y * t, self.rvel.z * t)
+    }
+}

src/server/client.rs

@@ -0,0 +1,535 @@
+use std::collections::HashMap;
+use std::net::SocketAddr;
+use std::ops::DerefMut;
+use std::path::Path;
+use std::sync::Arc;
+
+use tokio::io::{AsyncReadExt, AsyncWriteExt};
+use tokio::net::{
+    tcp::{OwnedReadHalf, OwnedWriteHalf},
+    TcpStream,
+};
+use tokio::sync::mpsc::{Receiver, Sender};
+use tokio::sync::Mutex;
+use tokio::task::JoinHandle;
+
+use serde::Deserialize;
+use crate::fs_util;
+
+use super::backend::*;
+use super::car::*;
+use super::packet::*;
+
+lazy_static! {
+    pub static ref TAKEN_PLAYER_IDS: Mutex<Vec<u8>> = Mutex::new(Vec::new());
+    pub static ref CLIENT_MOD_PROGRESS: Mutex<HashMap<u8, isize>> = Mutex::new(HashMap::new());
+}
+
+// TODO: Return a proper error?
+async fn claim_id() -> Result<u8, ()> {
+    let mut lock = TAKEN_PLAYER_IDS.lock().await;
+    for index in 0..=255 {
+        if !lock.contains(&index) {
+            lock.push(index);
+            return Ok(index);
+        }
+    }
+    // requires more then 255 players on the server to error
+    Err(())
+}
+
+async fn free_id(id: u8) {
+    let mut lock = TAKEN_PLAYER_IDS.lock().await;
+    *lock = lock.drain(..).filter(|i| *i != id).collect::<Vec<u8>>();
+}
+
+#[derive(PartialEq)]
+pub enum ClientState {
+    None,
+    Connecting,
+    SyncingResources,
+    Syncing,
+    Disconnect,
+}
+
+#[derive(Deserialize, Debug, PartialEq, Clone)]
+pub struct UserData {
+    pub uid: String,
+    pub createdAt: String,
+    pub guest: bool,
+    pub roles: String,
+    pub username: String,
+}
+
+pub struct Client {
+    pub id: u8,
+    pub udp_addr: Option<SocketAddr>,
+
+    socket: OwnedReadHalf,
+    write_half: Arc<Mutex<OwnedWriteHalf>>,
+    write_runtime: JoinHandle<()>,
+    write_runtime_sender: Sender<Packet>,
+
+    pub state: ClientState,
+    pub info: Option<UserData>,
+    pub cars: Vec<(u8, Car)>,
+}
+
+impl Drop for Client {
+    fn drop(&mut self) {
+        tokio::spawn(free_id(self.id));
+        self.write_runtime.abort();
+    }
+}
+
+impl Client {
+    pub async fn new(socket: TcpStream) -> Self {
+        let id = match claim_id().await {
+            Ok(v) => v,
+            Err(_) => panic!("CRITICAL: Saturated Player ID's"),
+        };
+        trace!("Client with ID #{} created!", id);
+
+        let (read_half, write_half) = socket.into_split();
+        let (tx, mut rx): (Sender<Packet>, Receiver<Packet>) = tokio::sync::mpsc::channel(128);
+        let write_half = Arc::new(Mutex::new(write_half));
+        let write_half_ref = Arc::clone(&write_half);
+        let handle: JoinHandle<()> = tokio::spawn(async move {
+            loop {
+                if let Some(packet) = rx.recv().await {
+                    // trace!("Runtime received packet...");
+                    let mut lock = write_half_ref.lock().await;
+                    // trace!("Runtime sending packet!");
+                    if let Err(e) = tcp_write(lock.deref_mut(), packet).await {
+                        error!("{:?}", e);
+                    };
+                    // trace!("Runtime sent packet!");
+                    drop(lock);
+                }
+            }
+        });
+
+        Self {
+            id: id,
+            udp_addr: None,
+
+            socket: read_half,
+            write_half: write_half,
+            write_runtime: handle,
+            write_runtime_sender: tx,
+
+            state: ClientState::Connecting,
+            info: None,
+            cars: Vec::new(),
+        }
+    }
+
+    pub async fn authenticate(&mut self, config: &super::Config) -> anyhow::Result<bool> {
+        debug!("Authenticating client {}...", self.id);
+
+        // TODO: Check client version
+        trace!("Client version packet");
+        self.socket.readable().await?;
+        let packet = self.read_packet_waiting().await?;
+        debug!("{:?}", packet);
+
+        self.write_packet(Packet::Raw(RawPacket::from_code('S')))
+            .await?;
+
+        self.socket.readable().await?;
+        if let Some(packet) = self.read_packet_waiting().await? {
+            debug!("packet: {:?}", packet);
+            if packet.data.len() > 50 {
+                self.kick("Player key too big!").await;
+                return Err(ClientError::AuthenticateError.into());
+            }
+            let mut json = HashMap::new();
+            let key = packet.data_as_string();
+            debug!("[AUTH] key: {}", key);
+            json.insert("key".to_string(), key);
+            let user_data: UserData =
+                authentication_request("pkToUser", json)
+                    .await
+                    .map_err(|e| {
+                        error!("[AUTH] {:?}", e);
+                        e
+                    })?;
+            debug!("user_data: {:?}", user_data);
+            self.info = Some(user_data);
+
+            // self.write_packet(Packet::Raw(RawPacket::from_code('S')))
+            //     .await?;
+        } else {
+            self.kick(
+                "Client never sent public key! If this error persists, try restarting your game.",
+            )
+            .await;
+        }
+
+        self.write_packet(Packet::Raw(RawPacket::from_str(&format!("P{}", self.id))))
+            .await?;
+
+        self.state = ClientState::SyncingResources;
+
+        debug!(
+            "Authentication of client {} succesfully completed! Syncing now...",
+            self.id
+        );
+        self.sync(config).await?;
+
+        Ok(true)
+    }
+
+    // TODO: https://github.com/BeamMP/BeamMP-Server/blob/master/src/TNetwork.cpp#L619
+    pub async fn sync(&mut self, config: &super::Config) -> anyhow::Result<()> {
+        'syncing: while self.state == ClientState::SyncingResources {
+            self.socket.readable().await?;
+            if let Some(packet) = self.read_packet().await? {
+                if (packet.data.len() == 4 && packet.data == [68, 111, 110, 101]) || packet.data.len() == 0 {
+                    {
+                        let mut lock = CLIENT_MOD_PROGRESS.lock().await;
+                        lock.insert(self.id, -1);
+                    }
+                    break 'syncing;
+                }
+                match packet.data[0] as char {
+                    'S' if packet.data.len() > 1 => match packet.data[1] as char {
+                        'R' => {
+                            let file_packet = if config.mods.len() == 0 {
+                                RawPacket::from_code('-')
+                            } else {
+                                let mut file_data = String::new();
+                                // TODO: Collapse these 2 loops into 1
+                                for (name, _size) in &config.mods {
+                                    let mut mod_name = name.clone();
+                                    if mod_name.starts_with("/") == false {
+                                        mod_name = format!("/{mod_name}");
+                                    }
+                                    file_data.push_str(&format!("{mod_name};"));
+                                }
+                                for (_name, size) in &config.mods {
+                                    file_data.push_str(&format!("{size};"));
+                                }
+                                RawPacket::from_str(&file_data)
+                            };
+                            // let file_packet = RawPacket::from_code('-');
+                            self.write_packet(Packet::Raw(file_packet))
+                                .await?;
+                        }
+                        _ => error!("Unknown packet! {:?}", packet),
+                    }
+                    'f' => {
+                        // Handle file download
+                        let mut mod_name = packet.data_as_string().clone();
+                        mod_name.remove(0); // Remove f
+                        debug!("Client is requesting file {}", mod_name);
+
+                        let client_resources = config.general.get_client_resource_folder()?;
+                        let mod_path = fs_util::join_path_secure(Path::new(&client_resources), Path::new(&mod_name))?;
+
+                        if !mod_path.exists() || !mod_path.is_file() {
+                            error!("Client requested mod which doesn't exist: {:?}. Disconnecting", mod_path);
+                            self.kick("Invalid mod request").await;
+                            return Ok(()) // client requested mod that doesnt exists within "Resources/Client/*"
+                        }
+
+                        self.write_packet(Packet::Raw(RawPacket::from_str("AG"))).await?;
+
+                        let mut mod_id = 0;
+                        for (i, (bmod_name, _bmod_size)) in config.mods.iter().enumerate() {
+                            if bmod_name == &mod_name {
+                                mod_id = i;
+                            }
+                        }
+
+                        // Send the first half of the file over this socket and the other over the DSocket
+                        let file_data = std::fs::read(mod_path)?;
+                        {
+                            let mut lock = self.write_half.lock().await;
+                            lock.writable().await?;
+                            trace!("Sending packets!");
+                            if let Err(e) = lock.write(&file_data[..(file_data.len()/2)]).await {
+                                error!("{:?}", e);
+                            }
+                            trace!("Packets sent!");
+                            drop(lock);
+                        }
+
+                        {
+                            let mut lock = CLIENT_MOD_PROGRESS.lock().await;
+                            lock.insert(self.id, mod_id as isize);
+                        }
+                    }
+                    _ => error!("Unknown packet! {:?}", packet),
+                }
+            }
+        }
+        self.state = ClientState::None;
+        trace!("Done syncing! Sending map name...");
+        self.write_packet(Packet::Raw(RawPacket::from_str(&format!(
+            "M{}",
+            config.general.map
+        ))))
+        .await?;
+        trace!("Map name sent!");
+        Ok(())
+    }
+
+    /// This function should never block. It should simply check if there's a
+    /// packet, and then and only then should it read it. If this were to block, the server
+    /// would come to a halt until this function unblocks.
+    pub async fn process(&mut self) -> anyhow::Result<Option<RawPacket>> {
+        if let Some(packet) = self.read_packet().await? {
+            return Ok(Some(packet));
+        }
+        Ok(None)
+    }
+
+    pub async fn process_blocking(&mut self) -> anyhow::Result<Option<RawPacket>> {
+        if let Some(packet) = self.read_packet_waiting().await? {
+            return Ok(Some(packet));
+        }
+        Ok(None)
+    }
+
+    pub fn disconnect(&mut self) {
+        self.state = ClientState::Disconnect;
+    }
+
+    pub async fn kick(&mut self, msg: &str) {
+        // let _ = self.socket.writable().await;
+        // let _ = self.write_packet(Packet::Raw(RawPacket::from_str(&format!("K{}", msg)))).await;
+        // self.disconnect();
+        let _ = self
+            .write_packet(Packet::Raw(RawPacket::from_str(&format!("K{}", msg))))
+            .await;
+        self.disconnect();
+    }
+
+    pub fn get_userdata(&self) -> UserData {
+        self.info.as_ref().unwrap().clone()
+    }
+
+    // Panics when userdata is not set!
+    pub fn get_name(&self) -> &str {
+        &self.info.as_ref().unwrap().username
+    }
+
+    pub fn get_id(&self) -> u8 {
+        self.id
+    }
+
+    // Panics when userdata is not set!
+    pub fn get_roles(&self) -> &str {
+        &self.info.as_ref().unwrap().roles
+    }
+
+    pub fn register_car(&mut self, car: Car) -> u8 {
+        let mut free_num = 0;
+        for (num, _) in &self.cars {
+            if num == &free_num {
+                free_num += 1;
+            } else {
+                break;
+            }
+        }
+        self.cars.push((free_num, car));
+        free_num
+    }
+
+    pub fn unregister_car(&mut self, car_id: u8) {
+        let prev_len = self.cars.len();
+        self.cars.retain(|(id, _)| id != &car_id);
+        if prev_len == self.cars.len() {
+            error!(
+                "Failed to unregister car #{} for client #{}! Ignoring for now...",
+                car_id, self.id
+            );
+        }
+    }
+
+    pub fn get_car_mut(&mut self, mut car_id: u8) -> Option<&mut Car> {
+        for (num, car) in &mut self.cars {
+            if num == &mut car_id {
+                return Some(car);
+            }
+        }
+        None
+    }
+
+    async fn read_raw(&mut self, count: usize) -> anyhow::Result<Vec<u8>> {
+        let mut b = vec![0u8; count];
+        self.socket.read_exact(&mut b).await?;
+        Ok(b)
+    }
+
+    async fn read_packet_waiting(&mut self) -> anyhow::Result<Option<RawPacket>> {
+        let start = std::time::Instant::now();
+        'wait: loop {
+            if let Some(packet) = self.read_packet().await? {
+                return Ok(Some(packet));
+            }
+            if start.elapsed().as_secs() >= 5 {
+                break 'wait;
+            }
+            tokio::time::sleep(std::time::Duration::from_millis(500)).await;
+        }
+        Err(ClientError::ConnectionTimeout.into())
+    }
+
+    /// Must be non-blocking
+    async fn read_packet(&mut self) -> anyhow::Result<Option<RawPacket>> {
+        let mut header = [0u8; 4];
+        match self.socket.try_read(&mut header) {
+            Ok(0) => {
+                error!("Socket is readable, yet has 0 bytes to read! Disconnecting client...");
+                self.disconnect();
+                return Ok(None);
+            }
+            Ok(_n) => {}
+            Err(ref e) if e.kind() == std::io::ErrorKind::WouldBlock => {
+                return Ok(None);
+            }
+            Err(e) => return Err(e.into()),
+        }
+
+        let expected_size = u32::from_le_bytes(header) as usize;
+        let mut data = Vec::new();
+        let mut tmp_data = vec![0u8; expected_size];
+        let mut data_size = 0;
+        while data_size < expected_size {
+            match self.socket.try_read(&mut tmp_data) {
+                Ok(0) => {
+                    error!("Socket is readable, yet has 0 bytes to read! Disconnecting client...");
+                    self.disconnect();
+                    return Ok(None);
+                }
+                Ok(n) => {
+                    data_size += n;
+                    data.extend_from_slice(&tmp_data[..n]);
+                },
+                Err(ref e) if e.kind() == std::io::ErrorKind::WouldBlock => {
+                    // debug!("Packet appears to be ready, yet can't be read yet!");
+                    // self.socket.read(&mut data).await?;
+                    return Ok(None);
+                }
+                Err(e) => return Err(e.into()),
+            }
+        }
+
+        Ok(Some(RawPacket {
+            header: data_size as u32,
+            data: data[..data_size].to_vec(),
+        }))
+    }
+
+    /// Blocking write
+    pub async fn write_packet(&mut self, packet: Packet) -> anyhow::Result<()> {
+        let mut lock = self.write_half.lock().await;
+        lock.writable().await?;
+        trace!("Sending packet!");
+        if let Err(e) = tcp_write(lock.deref_mut(), packet).await {
+            error!("{:?}", e);
+        }
+        trace!("Packet sent!");
+        drop(lock);
+        Ok(())
+    }
+
+    pub async fn queue_packet(&self, packet: Packet) {
+        // TODO: If packet gets lost, put it back at the front of the queue?
+        let _ = self.write_runtime_sender.send(packet).await;
+    }
+
+    pub async fn trigger_client_event<S: Into<String>, D: Into<String>>(&self, event_name: S, data: D) {
+        let event_name = event_name.into();
+        let data = data.into();
+        debug!("Calling client event '{}' with data '{}'", event_name, data);
+        let packet_data = format!("E:{}:{}", event_name, data);
+        self.queue_packet(Packet::Raw(RawPacket::from_str(&packet_data))).await;
+    }
+}
+
+#[derive(Debug)]
+pub enum ClientError {
+    AuthenticateError,
+    ConnectionTimeout,
+    IsDownloader,
+}
+
+impl std::fmt::Display for ClientError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+        write!(f, "{:?}", self)?;
+        Ok(())
+    }
+}
+
+impl std::error::Error for ClientError {}
+
+#[async_trait]
+trait Writable {
+    async fn writable(&self) -> std::io::Result<()>;
+}
+
+#[async_trait]
+impl Writable for TcpStream {
+    async fn writable(&self) -> std::io::Result<()> {
+        self.writable().await
+    }
+}
+
+#[async_trait]
+impl Writable for OwnedWriteHalf {
+    async fn writable(&self) -> std::io::Result<()> {
+        self.writable().await
+    }
+}
+
+async fn tcp_write<W: AsyncWriteExt + Writable + std::marker::Unpin>(
+    w: &mut W,
+    mut packet: Packet,
+) -> anyhow::Result<()> {
+    let compressed = match packet.get_code() {
+        Some('O') => true,
+        Some('T') => true,
+        _ => packet.get_data().len() > 400,
+    };
+
+    if compressed {
+        let mut compressed: Vec<u8> = Vec::with_capacity(100_000);
+        let mut compressor = flate2::Compress::new(flate2::Compression::best(), true);
+        compressor.compress_vec(
+            packet.get_data(),
+            &mut compressed,
+            flate2::FlushCompress::Sync,
+        )?;
+        let mut new_data = "ABG:".as_bytes()[..4].to_vec();
+        new_data.append(&mut compressed);
+        packet.set_header(new_data.len() as u32);
+        packet.set_data(new_data);
+    }
+
+    tcp_write_raw(w, packet).await?;
+
+    Ok(())
+}
+
+async fn tcp_write_raw<W: AsyncWriteExt + Writable + std::marker::Unpin>(
+    w: &mut W,
+    mut packet: Packet,
+) -> anyhow::Result<()> {
+    let mut raw_data: Vec<u8> = packet.get_header().to_le_bytes().to_vec();
+    raw_data.extend_from_slice(packet.get_data());
+    w.writable().await?;
+    w.write(&raw_data).await?;
+    Ok(())
+}
+
+async fn tcp_send_file<W: AsyncWriteExt + Writable + std::marker::Unpin>(
+    w: &mut W,
+    file_name: String,
+) -> anyhow::Result<()> {
+    debug!("Sending file '{}'", file_name);
+    tcp_write(w, Packet::Raw(RawPacket::from_str("KYou have not downloaded the mod manually!"))).await?;
+    Ok(())
+}

src/server/http.rs

@@ -0,0 +1,14 @@
+use tokio::io::{AsyncReadExt, AsyncWriteExt};
+use tokio::net::{
+    tcp::{OwnedReadHalf, OwnedWriteHalf},
+    TcpStream,
+};
+
+pub async fn handle_http_get(socket: TcpStream) {
+    let (read_half, write_half) = socket.into_split();
+    todo!()
+}
+
+async fn read_get_request(socket: &mut OwnedReadHalf) {
+    todo!()
+}

src/server/packet.rs

@@ -0,0 +1,144 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone)]
+pub enum Packet {
+    Raw(RawPacket),
+    Notification(NotificationPacket),
+}
+
+impl Packet {
+    pub fn get_header(&self) -> u32 {
+        match self {
+            Self::Raw(raw) => raw.header,
+            Self::Notification(msg) => self.get_data().len() as u32,
+        }
+    }
+
+    pub fn get_data(&self) -> &[u8] {
+        match self {
+            Self::Raw(raw) => &raw.data,
+            Self::Notification(p) => p.0.as_bytes(),
+        }
+    }
+
+    pub fn get_code(&self) -> Option<char> {
+        match self {
+            Self::Raw(raw) => raw.data.get(0).map(|c| *c as char),
+            Self::Notification(_) => Some('J'),
+        }
+    }
+
+    pub fn set_data(&mut self, data: Vec<u8>) {
+        match self {
+            Self::Raw(raw) => raw.data = data,
+            Self::Notification(_) => todo!(),
+        }
+    }
+
+    pub fn set_header(&mut self, header: u32) {
+        match self {
+            Self::Raw(raw) => raw.header = header,
+            Self::Notification(_) => todo!(),
+        }
+    }
+
+    pub fn data_as_string(&self) -> String {
+        String::from_utf8_lossy(&self.get_data()).to_string()
+    }
+}
+
+#[derive(Debug, Clone)]
+pub struct NotificationPacket(String);
+
+impl NotificationPacket {
+    pub fn new<S: Into<String>>(msg: S) -> Self {
+        Self(format!("J{}", msg.into()))
+    }
+    pub fn player_welcome<S: Into<String>>(msg: S) -> Self {
+        Self(format!("JWelcome {}!", msg.into()))
+    }
+    pub fn player_left<S: Into<String>>(msg: S) -> Self {
+        Self(format!("L{} left the server!", msg.into()))
+    }
+}
+
+/// Protocol:
+/// Header: 4 bytes, contains data size
+/// Data: Contains packet data
+#[derive(Clone)]
+pub struct RawPacket {
+    pub header: u32,
+    pub data: Vec<u8>,
+}
+
+impl RawPacket {
+    pub fn from_code(code: char) -> Self {
+        Self {
+            header: 1,
+            data: vec![code as u8],
+        }
+    }
+
+    pub fn from_data(data: Vec<u8>) -> Self {
+        Self {
+            header: data.len() as u32,
+            data,
+        }
+    }
+
+    pub fn from_str(str_data: &str) -> Self {
+        let data = str_data.as_bytes().to_vec();
+        Self {
+            header: data.len() as u32,
+            data: data,
+        }
+    }
+
+    pub fn data_as_string(&self) -> String {
+        String::from_utf8_lossy(&self.data).to_string()
+    }
+}
+
+impl std::fmt::Debug for RawPacket {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+        write!(
+            f,
+            "Header: `{:?}` - Bytes: `{:?}` - String: `{}`",
+            self.header,
+            self.data,
+            self.data_as_string()
+        )?;
+        Ok(())
+    }
+}
+
+#[derive(Default, Serialize, Deserialize)]
+pub struct RespawnPacketData {
+    pub pos: RespawnPacketDataPos,
+    pub rot: RespawnPacketDataRot,
+}
+
+#[derive(Default, Serialize, Deserialize)]
+pub struct RespawnPacketDataPos {
+    pub x: f64,
+    pub y: f64,
+    pub z: f64,
+}
+
+#[derive(Default, Serialize, Deserialize)]
+pub struct RespawnPacketDataRot {
+    pub x: f64,
+    pub y: f64,
+    pub z: f64,
+    pub w: f64,
+}
+
+#[derive(Default, Serialize, Deserialize)]
+pub struct TransformPacket {
+    pub rvel: [f64; 3],
+    pub tim: f64,
+    pub pos: [f64; 3],
+    pub ping: f64,
+    pub rot: [f64; 4],
+    pub vel: [f64; 3],
+}

src/server/plugins/backend_lua.rs

@@ -0,0 +1,334 @@
+use super::{
+    Backend,
+    ServerBoundPluginEvent,
+    PluginBoundPluginEvent,
+    ScriptEvent,
+    Argument
+};
+
+use std::sync::{Arc, Mutex};
+use std::collections::HashMap;
+
+use tokio::sync::mpsc::{Sender, Receiver};
+use tokio::sync::oneshot;
+
+use mlua::prelude::*;
+use mlua::{UserData, UserDataMethods, Value, Function, Variadic};
+
+#[derive(Clone)]
+struct Context {
+    tx: Arc<Sender<ServerBoundPluginEvent>>,
+
+    handlers: Arc<Mutex<HashMap<String, String>>>,
+}
+
+impl Context {
+    fn new(tx: Arc<Sender<ServerBoundPluginEvent>>) -> Self {
+        Self {
+            tx,
+
+            handlers: Arc::new(Mutex::new(HashMap::new())),
+        }
+    }
+}
+
+impl<'lua> FromLua<'lua> for Context {
+    fn from_lua(value: Value<'lua>, _: &'lua Lua) -> LuaResult<Self> {
+        match value {
+            Value::UserData(ud) => Ok(ud.borrow::<Self>()?.clone()),
+            _ => unreachable!()
+        }
+    }
+}
+
+impl UserData for Context {
+    fn add_methods<'lua, M: UserDataMethods<'lua, Self>>(methods: &mut M) {
+        // Implement all the API functions here
+
+        methods.add_function("RegisterEventHandler", |lua, (event_name, handler_name): (String, String)| {
+            debug!("Event handler registered: {} (EVENT) = {} (LUA)", event_name, handler_name);
+            let me: Context = lua.globals().get("MP")?;
+            me.handlers.lock().expect("Lock is poisoned!").insert(event_name, handler_name);
+            Ok(())
+        });
+
+        methods.add_function("GetServerVersion", |_lua, ()| {
+            Ok((3, 3, 0))
+        });
+
+        methods.add_function("GetPlayerCount", |lua, ()| {
+            let me: Context = lua.globals().get("MP")?;
+            let (tx, rx) = oneshot::channel();
+            if let Err(e) = me.tx.blocking_send(ServerBoundPluginEvent::RequestPlayerCount(tx)) {
+                error!("Failed to send packet: {:?}", e);
+            }
+            let message = rx.blocking_recv();
+            if let Ok(message) = message {
+                if let PluginBoundPluginEvent::PlayerCount(player_count) = message {
+                    Ok(player_count)
+                } else {
+                    unreachable!() // This really should never be reachable
+                }
+            } else {
+                todo!("Receiving a response from the server failed! How?")
+            }
+        });
+
+        methods.add_function("GetPlayers", |lua, ()| {
+            let me: Context = lua.globals().get("MP")?;
+            let (tx, rx) = oneshot::channel();
+            if let Err(e) = me.tx.blocking_send(ServerBoundPluginEvent::RequestPlayers(tx)) {
+                error!("Failed to send packet: {:?}", e);
+            }
+            let message = rx.blocking_recv();
+            if let Ok(message) = message {
+                if let PluginBoundPluginEvent::Players(players) = message {
+                    let table = lua.create_table()?;
+                    for (id, name) in players {
+                        table.set(id, name)?;
+                    }
+                    Ok(table)
+                } else {
+                    unreachable!() // This really should never be reachable
+                }
+            } else {
+                todo!("Receiving a response from the server failed! How?")
+            }
+        });
+
+        methods.add_function("GetPlayerIdentifiers", |lua, (id,): (u8,)| {
+            let me: Context = lua.globals().get("MP")?;
+            let (tx, rx) = oneshot::channel();
+            if let Err(e) = me.tx.blocking_send(ServerBoundPluginEvent::RequestPlayerIdentifiers((id, tx))) {
+                error!("Failed to send packet: {:?}", e);
+            }
+            let message = rx.blocking_recv();
+            if let Ok(message) = message {
+                match message {
+                    PluginBoundPluginEvent::PlayerIdentifiers(identifiers) => {
+                        let table = lua.create_table()?;
+                        table.set("id", identifiers.ip)?;
+                        table.set("beammp_id", identifiers.beammp_id)?;
+                        Ok(Value::Table(table))
+                    },
+                    PluginBoundPluginEvent::None => Ok(Value::Nil),
+                    _ => unreachable!() // This should really never be reachable
+                }
+            } else {
+                todo!("Receiving a response from the server failed! How?")
+            }
+        });
+
+        methods.add_function("GetPlayerName", |lua, (id,): (u8,)| {
+            let me: Context = lua.globals().get("MP")?;
+            // We can simply request all player names and pick the one we need
+            let (tx, rx) = oneshot::channel();
+            if let Err(e) = me.tx.blocking_send(ServerBoundPluginEvent::RequestPlayers(tx)) {
+                error!("Failed to send packet: {:?}", e);
+            }
+            let message = rx.blocking_recv();
+            if let Ok(message) = message {
+                if let PluginBoundPluginEvent::Players(players) = message {
+                    let mut name = None;
+                    'search: for (pid, pname) in players {
+                        if pid == id {
+                            name = Some(pname);
+                            break 'search;
+                        }
+                    }
+                    Ok(name)
+                } else {
+                    unreachable!() // This really should never be reachable
+                }
+            } else {
+                todo!("Receiving a response from the server failed! How?")
+            }
+        });
+
+        methods.add_function("GetPlayerVehicles", |lua, (id,): (u8,)| {
+            let me: Context = lua.globals().get("MP")?;
+            let (tx, rx) = oneshot::channel();
+            if let Err(e) = me.tx.blocking_send(ServerBoundPluginEvent::RequestPlayerVehicles((id, tx))) {
+                error!("Failed to send packet: {:?}", e);
+            }
+            let message = rx.blocking_recv();
+            if let Ok(message) = message {
+                if let PluginBoundPluginEvent::PlayerVehicles(vehicles) = message {
+                    let table = lua.create_table()?;
+                    for (vid, veh_json) in vehicles {
+                        table.set(vid, veh_json)?;
+                    }
+                    Ok(table)
+                } else {
+                    unreachable!() // This really should never be reachable
+                }
+            } else {
+                todo!("Receiving a response from the server failed! How?")
+            }
+        });
+
+        methods.add_function("GetPositionRaw", |lua, (pid, vid): (u8, u8)| {
+            let me: Context = lua.globals().get("MP")?;
+            let (tx, rx) = oneshot::channel();
+            if let Err(e) = me.tx.blocking_send(ServerBoundPluginEvent::RequestPositionRaw((pid, vid, tx))) {
+                error!("Failed to send packet: {:?}", e);
+            }
+            let message = rx.blocking_recv();
+            if let Ok(message) = message {
+                match message {
+                    PluginBoundPluginEvent::PositionRaw(pos_raw) => {
+                        let pos_table = lua.create_table()?;
+                        pos_table.set("x", pos_raw.pos[0])?;
+                        pos_table.set("y", pos_raw.pos[1])?;
+                        pos_table.set("z", pos_raw.pos[2])?;
+
+                        let rot_table = lua.create_table()?;
+                        pos_table.set("x", pos_raw.rot[0])?;
+                        pos_table.set("y", pos_raw.rot[1])?;
+                        pos_table.set("z", pos_raw.rot[2])?;
+                        pos_table.set("w", pos_raw.rot[3])?;
+
+                        let table = lua.create_table()?;
+                        table.set("pos", pos_table)?;
+                        table.set("rot", rot_table)?;
+                        Ok(Value::Table(table))
+                    },
+                    PluginBoundPluginEvent::None => Ok(Value::Nil),
+                    _ => unreachable!() // This really should never be reachable
+                }
+            } else {
+                todo!("Receiving a response from the server failed! How?")
+            }
+        });
+
+        methods.add_function("SendChatMessage", |lua, (id, msg): (isize, String)| {
+            let me: Context = lua.globals().get("MP")?;
+            if let Err(e) = me.tx.blocking_send(ServerBoundPluginEvent::SendChatMessage((id, msg))) {
+                error!("Failed to send packet: {:?}", e);
+            }
+            Ok(())
+        });
+
+        methods.add_function("GetOSName", |lua, ()| {
+            Ok(std::env::consts::OS)
+        });
+    }
+}
+
+pub struct BackendLua {
+    lua: Lua,
+}
+
+impl BackendLua {
+    pub fn new() -> Self {
+        let lua = Lua::new();
+
+        Self {
+            lua,
+        }
+    }
+}
+
+impl Backend for BackendLua {
+    fn load(&mut self, code: String) -> anyhow::Result<()> {
+        self.lua.load(code).exec().map_err(|e| { error!("[LUA] {:?}", e); e })?;
+        Ok(())
+    }
+
+    fn load_api(&mut self, tx: Arc<Sender<ServerBoundPluginEvent>>) -> anyhow::Result<()> {
+        let print_fn = self.lua.create_function(|_lua, (msg,): (String,)| {
+            info!("[LUA] {}", msg);
+            Ok(())
+        })?;
+
+        let api = Context::new(tx);
+
+        let globals = self.lua.globals();
+        globals.set("MP", api)?;
+        globals.set("print", print_fn)?;
+
+        Ok(())
+    }
+
+    fn call_event_handler(&mut self, event: ScriptEvent, resp: Option<oneshot::Sender<Argument>>) {
+        let (event_name, args) = match event {
+            ScriptEvent::OnPluginLoaded => ("onInit", vec![]),
+            ScriptEvent::OnShutdown => ("onShutdown", vec![]),
+
+            ScriptEvent::OnPlayerAuthenticated { name, role, is_guest, identifiers } => ("onPlayerAuth", vec![Argument::String(name), Argument::String(role), Argument::Boolean(is_guest), Argument::Table(identifiers.to_map())]),
+            ScriptEvent::OnPlayerConnecting { pid } => ("onPlayerConnecting", vec![Argument::Integer(pid as i64)]),
+            ScriptEvent::OnPlayerJoining { pid } => ("onPlayerJoining", vec![Argument::Integer(pid as i64)]),
+
+            ScriptEvent::OnPlayerDisconnect { pid, name } => ("onPlayerDisconnect", vec![Argument::Integer(pid as i64), Argument::String(name)]),
+
+            ScriptEvent::OnVehicleSpawn { pid, vid, car_data } => ("onVehicleSpawn", vec![Argument::Integer(pid as i64), Argument::Integer(vid as i64), Argument::String(car_data)]),
+            ScriptEvent::OnVehicleEdited { pid, vid, car_data } => ("onVehicleEdited", vec![Argument::Integer(pid as i64), Argument::Integer(vid as i64), Argument::String(car_data)]),
+            ScriptEvent::OnVehicleDeleted { pid, vid } => ("onVehicleDeleted", vec![Argument::Integer(pid as i64), Argument::Integer(vid as i64)]),
+            ScriptEvent::OnVehicleReset { pid, vid, car_data } => ("onVehicleReset", vec![Argument::Integer(pid as i64), Argument::Integer(vid as i64), Argument::String(car_data)]),
+
+            ScriptEvent::OnChatMessage { pid, name, message } => ("onChatMessage", vec![Argument::Integer(pid as i64), Argument::String(name), Argument::String(message)]),
+        };
+
+        let mut ret = Value::Number(-1f64);
+        // TODO: Error handling
+        {
+            let ctx: Context = self.lua.globals().get("MP").expect("MP is missing!");
+            let lock = ctx.handlers.lock().expect("Mutex is poisoned!");
+            if let Some(handler_name) = lock.get(event_name) {
+                let func: LuaResult<Function> = self.lua.globals().get(handler_name.clone());
+                if let Ok(func) = func {
+                    let mapped_args = args.into_iter().map(|arg| {
+                        arg_to_value(&self.lua, arg)
+                    }).filter(|v| v.is_some());
+                    match func.call::<_, Value>(Variadic::from_iter(mapped_args)) {
+                        Ok(res) => { trace!("fn ret: {:?}", res); ret = res; }
+                        Err(e) => {
+                            error!("[LUA] {}", e);
+                            ret = Value::Number(-1f64);
+                        },
+                    }
+                }
+            }
+        }
+
+        debug!("sending result...");
+        if let Some(resp) = resp {
+            let arg = value_to_arg(ret);
+            resp.send(arg).expect("Failed to send!");
+        }
+        debug!("call_event_handler done");
+    }
+}
+
+fn value_to_arg(value: Value) -> Argument {
+    match value {
+        Value::Boolean(b) => Argument::Boolean(b),
+        Value::Integer(i) => Argument::Integer(i),
+        Value::Number(f) => Argument::Number(f as f32),
+        Value::String(s) => Argument::String(s.to_string_lossy().to_string()),
+        _ => Argument::Number(-1f32),
+    }
+}
+
+fn arg_to_value(lua: &Lua, arg: Argument) -> Option<Value> {
+    match arg {
+        Argument::String(s) => if let Ok(lua_str) = lua.create_string(&s) { Some(Value::String(lua_str)) } else { None },
+        Argument::Boolean(b) => Some(Value::Boolean(b)),
+        Argument::Number(f) => Some(Value::Number(f as f64)),
+        Argument::Integer(i) => Some(Value::Integer(i as i64)),
+        Argument::Table(t) => {
+            if let Ok(table) = lua.create_table() {
+                for (key, value) in t {
+                    if let Some(v) = arg_to_value(lua, value) {
+                        if let Err(e) = table.set(key, v) {
+                            error!("[LUA] Error occured trying to put data into table: {:?}", e);
+                        }
+                    }
+                }
+                Some(Value::Table(table))
+            } else {
+                None
+            }
+        }
+    }
+}

src/server/plugins/mod.rs

@@ -0,0 +1,194 @@
+pub mod backend_lua;
+
+use std::sync::Arc;
+use std::collections::HashMap;
+use tokio::runtime::Runtime;
+use tokio::sync::mpsc::{self, Sender, Receiver};
+use tokio::sync::oneshot;
+
+/// NOTE: Send is required as the backend is constructed on the main thread and sent over.
+///       Even if we construct it inside the runtime however, because of tokio, we would
+//        still have to require Send as the runtime might run on different threads (?)
+pub trait Backend: Send {
+    fn load(&mut self, code: String) -> anyhow::Result<()>;
+    fn load_api(&mut self, tx: Arc<Sender<ServerBoundPluginEvent>>) -> anyhow::Result<()>;
+
+    fn call_event_handler(&mut self, event: ScriptEvent, resp: Option<oneshot::Sender<Argument>>);
+}
+
+// TODO: This is quite focused on Lua right now, perhaps in the future we want to modify this list
+//       to be more versatile?
+#[derive(Debug, Clone)]
+pub enum Argument {
+    String(String),
+    Boolean(bool),
+    Number(f32),
+    Integer(i64),
+    Table(HashMap<String, Argument>),
+}
+
+#[derive(Debug)]
+pub struct PlayerIdentifiers {
+    pub ip: String,
+    pub beammp_id: String,
+}
+
+impl PlayerIdentifiers {
+    pub fn to_map(&self) -> HashMap<String, Argument> {
+        let mut m = HashMap::new();
+        m.insert(String::from("ip"), Argument::String(self.ip.clone()));
+        m.insert(String::from("beammp"), Argument::String(self.beammp_id.clone()));
+        m
+    }
+}
+
+#[derive(Debug)]
+pub struct PositionRaw {
+    pub pos: [f32; 3],
+    pub rot: [f32; 4],
+}
+
+impl PositionRaw {
+    pub fn to_map(&self) -> HashMap<String, Argument> {
+        let mut pm = HashMap::new();
+        pm.insert(String::from("x"), Argument::Number(self.pos[0]));
+        pm.insert(String::from("y"), Argument::Number(self.pos[1]));
+        pm.insert(String::from("z"), Argument::Number(self.pos[2]));
+
+        let mut rm = HashMap::new();
+        rm.insert(String::from("x"), Argument::Number(self.rot[0]));
+        rm.insert(String::from("y"), Argument::Number(self.rot[1]));
+        rm.insert(String::from("z"), Argument::Number(self.rot[2]));
+        rm.insert(String::from("w"), Argument::Number(self.rot[3]));
+
+        let mut m = HashMap::new();
+        m.insert(String::from("pos"), Argument::Table(pm));
+        m.insert(String::from("rot"), Argument::Table(rm));
+        m
+    }
+}
+
+#[derive(Debug)]
+pub enum ScriptEvent {
+    OnPluginLoaded,
+    OnShutdown,
+
+    // TODO: Because of limitations in how we accept clients, onPlayerAuth runs after mod downloading and syncing
+    //       has already happened. With some reworking, this can be avoided, but it's not easy.
+    //       This is quite important however, because otherwise mod downloads will get triggered
+    //       constantly even when someone isn't allowed to join!
+    OnPlayerAuthenticated { name: String, role: String, is_guest: bool, identifiers: PlayerIdentifiers },
+    // TODO: See the comment above, this results in these 2 events being useless for now.
+    //       I've simply left them in for backwards compatibility for now!
+    OnPlayerConnecting { pid: u8 },
+    OnPlayerJoining { pid: u8 },
+
+    OnPlayerDisconnect { pid: u8, name: String },
+
+    OnVehicleSpawn { pid: u8, vid: u8, car_data: String },
+    OnVehicleEdited { pid: u8, vid: u8, car_data: String },
+    OnVehicleDeleted { pid: u8, vid: u8 },
+    OnVehicleReset { pid: u8, vid: u8, car_data: String },
+
+    OnChatMessage { pid: u8, name: String, message: String },
+}
+
+#[derive(Debug)]
+pub enum PluginBoundPluginEvent {
+    None,
+
+    CallEventHandler((ScriptEvent, Option<oneshot::Sender<Argument>>)),
+
+    PlayerCount(usize),
+    Players(HashMap<u8, String>),
+    PlayerIdentifiers(PlayerIdentifiers),
+
+    PlayerVehicles(HashMap<u8, String>),
+    PositionRaw(PositionRaw),
+}
+
+// TODO: Perhaps it would be nice to ensure each sender can only sned specifically what it needs to.
+//       Purely to ensure type safety and slightly cleaner code on the backend implementation side.
+#[derive(Debug)]
+pub enum ServerBoundPluginEvent {
+    PluginLoaded,
+
+    RequestPlayerCount(oneshot::Sender<PluginBoundPluginEvent>),
+    RequestPlayers(oneshot::Sender<PluginBoundPluginEvent>),
+    RequestPlayerIdentifiers((u8, oneshot::Sender<PluginBoundPluginEvent>)),
+
+    RequestPlayerVehicles((u8, oneshot::Sender<PluginBoundPluginEvent>)),
+    RequestPositionRaw((u8, u8, oneshot::Sender<PluginBoundPluginEvent>)),
+
+    SendChatMessage((isize, String)),
+}
+
+pub struct Plugin {
+    runtime: Runtime,
+    tx: Sender<PluginBoundPluginEvent>,
+    rx: Receiver<ServerBoundPluginEvent>,
+}
+
+impl Plugin {
+    pub fn new(mut backend: Box<dyn Backend>, src: String) -> anyhow::Result<Self> {
+        let runtime = Runtime::new().expect("Failed to create a tokio Runtime!");
+        let (pb_tx, mut pb_rx) = mpsc::channel(1_000);
+        let (sb_tx, sb_rx) = mpsc::channel(1_000);
+        let sb_tx = Arc::new(sb_tx);
+        runtime.spawn_blocking(move || {
+            if backend.load_api(sb_tx.clone()).is_ok() {
+                if backend.load(src).is_ok() {
+                    if sb_tx.blocking_send(ServerBoundPluginEvent::PluginLoaded).is_err() {
+                        error!("Plugin communication channels somehow already closed!");
+                        return;
+                    }
+                }
+            }
+
+            loop {
+                if let Some(message) = pb_rx.blocking_recv() {
+                    match message {
+                        PluginBoundPluginEvent::CallEventHandler((event, resp)) => {
+                            backend.call_event_handler(event, resp);
+                        },
+                        _ => {},
+                    }
+                } else {
+                    error!("Event receiver has closed!"); // TODO: We probably want to display the plugin name here too lol
+                    return;
+                }
+            }
+        });
+        Ok(Self {
+            runtime,
+            tx: pb_tx,
+            rx: sb_rx,
+        })
+    }
+
+    pub async fn close(mut self) {
+        let (tx, mut rx) = oneshot::channel();
+        self.send_event(PluginBoundPluginEvent::CallEventHandler((ScriptEvent::OnShutdown, Some(tx)))).await;
+        let _ = rx.await; // We just wait for it to finish shutting down
+        self.runtime.shutdown_background();
+    }
+
+    // TODO: For performance I think we can turn this into an iterator instead of first allocating
+    //       a full vector?
+    pub fn get_events(&mut self) -> Vec<ServerBoundPluginEvent> {
+        let mut events = Vec::new();
+        loop {
+            match self.rx.try_recv() {
+                Ok(event) => events.push(event),
+                Err(mpsc::error::TryRecvError::Disconnected) => break, // TODO: This means the runtime is dead!!! Handle this!!!
+                Err(_) => break,
+            }
+        }
+        events
+    }
+
+    // TODO: Handle error when connection is closed, as it means the runtime is down
+    pub async fn send_event(&self, event: PluginBoundPluginEvent) {
+        let _ = self.tx.send(event).await;
+    }
+}

src/tui.rs

@@ -0,0 +1,201 @@
+use std::sync::Arc;
+use std::io::{stdout, Result};
+use std::collections::VecDeque;
+use log::Level;
+
+use crossterm::{
+    event::{self, KeyCode, KeyEventKind, KeyModifiers},
+    terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
+    ExecutableCommand,
+};
+use ratatui::{
+    prelude::*,
+    widgets::{Paragraph, Block, Borders},
+};
+
+use tokio::sync::mpsc;
+
+use crate::config::Config;
+use crate::server::ServerStatus;
+
+pub async fn tui_main(config: Arc<Config>, cmd_tx: mpsc::Sender<Vec<String>>, mut info_rx: mpsc::Receiver<ServerStatus>) {
+    let mut tui = Tui::new().expect("Failed to initialize tui!");
+
+    'app: loop {
+        if tui.update(&cmd_tx, &mut info_rx).await.expect("Failed to run tui.update!") {
+            cmd_tx.send(vec!["exit".to_string()]).await.unwrap();
+            break 'app;
+        }
+        tui.draw().expect("Failed to run tui.draw!");
+    }
+}
+
+struct Tui {
+    terminal: Terminal<CrosstermBackend<std::io::Stdout>>,
+
+    log_buffer: VecDeque<(Level, String)>,
+
+    history_scroll: usize,
+    input_history: Vec<String>,
+    input: String,
+
+    server_status: ServerStatus,
+}
+
+impl Drop for Tui {
+    fn drop(&mut self) {
+        if let Err(e) = self.cleanup() {
+            eprintln!("Error occured related to the TUI: {}", e);
+        }
+    }
+}
+
+impl Tui {
+    fn new() -> Result<Self> {
+        stdout().execute(EnterAlternateScreen)?;
+        enable_raw_mode()?;
+
+        let terminal = Terminal::new(CrosstermBackend::new(stdout()))?;
+
+        Ok(Self {
+            terminal,
+
+            log_buffer: VecDeque::new(),
+
+            history_scroll: 0,
+            input_history: Vec::new(),
+            input: String::new(),
+
+            server_status: ServerStatus::default(),
+        })
+    }
+
+    fn cleanup(&self) -> Result<()> {
+        stdout().execute(LeaveAlternateScreen)?;
+        disable_raw_mode()?;
+        Ok(())
+    }
+
+    async fn update(&mut self, cmd_tx: &mpsc::Sender<Vec<String>>, info_rx: &mut mpsc::Receiver<ServerStatus>) -> Result<bool> {
+        for (level, msg) in crate::logger::drain_log_buffer().await {
+            self.log_buffer.push_front((level, msg));
+            if self.log_buffer.len() > 100 {
+                self.log_buffer.pop_back();
+            }
+        }
+
+        match info_rx.try_recv() {
+            Ok(status) => self.server_status = status,
+            Err(mpsc::error::TryRecvError::Empty) => {},
+            Err(e) => return Ok(true),
+        }
+
+        if event::poll(std::time::Duration::from_millis(16))? {
+            if let event::Event::Key(key) = event::read()? {
+                if key.kind == KeyEventKind::Press {
+                    match key.code {
+                        KeyCode::Char(c) if key.modifiers.contains(KeyModifiers::CONTROL) => {
+                            
+                        },
+                        KeyCode::Char(c) => {
+                            let c = if key.modifiers == KeyModifiers::SHIFT { c.to_ascii_uppercase() } else { c };
+                            self.input.push(c);
+                            self.history_scroll = 0;
+                        },
+                        KeyCode::Backspace => { self.input.pop(); },
+                        KeyCode::Enter => {
+                            if self.input.is_empty() == false {
+                                let args = self.input.split(" ").map(|s| s.to_string()).collect::<Vec<String>>();
+                                if let Err(e) = cmd_tx.send(args.clone()).await {
+                                    error!("Error occured sending a command to the server! {e}");
+                                    return Ok(true);
+                                }
+                                self.input_history.insert(0, self.input.clone());
+                                self.input = String::new();
+                                if args.get(0) == Some(&"exit".to_string()) {
+                                    return Ok(true);
+                                }
+                            }
+                        },
+                        KeyCode::Up => {
+                            if self.history_scroll < self.input_history.len() {
+                                self.history_scroll += 1;
+                                self.input = self.input_history[self.history_scroll - 1].clone();
+                            }
+                        },
+                        KeyCode::Down => {
+                            if self.history_scroll > 1 {
+                                self.history_scroll -= 1;
+                                self.input = self.input_history[self.history_scroll - 1].clone();
+                            }
+                        },
+                        _ => {},
+                    }
+                }
+            }
+        }
+
+        Ok(false)
+    }
+
+    fn draw(&mut self) -> Result<()> {
+        self.terminal.draw(|frame| {
+            let area = frame.size();
+
+            let vert_layout = Layout::default()
+                .direction(Direction::Vertical)
+                .constraints(vec![
+                    Constraint::Length(area.height - 3),
+                    Constraint::Length(3),
+                ])
+                .split(area);
+
+            let horiz_layout = Layout::default()
+                .direction(Direction::Horizontal)
+                .constraints(vec![
+                    Constraint::Percentage(70),
+                    Constraint::Percentage(30),
+                ])
+                .split(vert_layout[0]);
+
+            let mut lines = Vec::new();
+            for (i, (level, msg)) in self.log_buffer.iter().enumerate() {
+                if i >= (area.height as usize - 5) { break; }
+                let (level_style, spacer) = match level {
+                    Level::Info => (Style::default().green(), " "),
+                    Level::Warn => (Style::default().yellow(), " "),
+                    Level::Error => (Style::default().red(), ""),
+                    Level::Debug => (Style::default().gray(), ""),
+                    Level::Trace => (Style::default().cyan(), ""),
+                };
+                lines.push(Line::from(vec![
+                    Span::styled("[", Style::default()),
+                    Span::styled(format!("{}", level), level_style),
+                    Span::styled(format!("]{} {}", spacer, msg), Style::default()),
+                ]));
+            }
+            lines.reverse();
+            frame.render_widget(
+                // Paragraph::new("[INFO] info!!!\n[DEBUG] debug!!!!").block(Block::new().borders(Borders::ALL)),
+                Paragraph::new(Text::from(lines)).block(Block::new().borders(Borders::ALL).title("Log")),
+                horiz_layout[0],
+            );
+
+            let mut lines = Vec::new();
+            for (id, name) in &self.server_status.player_list {
+                lines.push(Line::from(format!("{id} - {name}")));
+            }
+            frame.render_widget(
+                Paragraph::new(lines).block(Block::new().borders(Borders::ALL).title("Player List")),
+                horiz_layout[1],
+            );
+
+            frame.render_widget(
+                Paragraph::new(format!(" > {}", self.input)).block(Block::new().borders(Borders::ALL).title("Input")),
+                vert_layout[1],
+            );
+        })?;
+
+        Ok(())
+    }
+}