mirror of
https://github.com/unmojang/node-minecraft-protocol.git
synced 2025-09-28 13:45:37 -04:00
split createServer in 4 plugins
This commit is contained in:
Romain Beaumont
parent
93e8d63249
commit
a2598cefda
@ -1,288 +1,43 @@
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'use strict';
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'use strict';
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const crypto = require('crypto');
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const yggserver = require('yggdrasil').server({});
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const states = require("./states");
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const bufferEqual = require('buffer-equal');
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const Server = require('./server');
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const Server = require('./server');
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const UUID = require('uuid-1345');
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const endianToggle = require('endian-toggle');
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const pluginChannels = require('./client/pluginChannels');
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const NodeRSA = require('node-rsa');
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const NodeRSA = require('node-rsa');
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const plugins = [
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require('./server/handshake'),
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require('./server/keepalive'),
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require('./server/login'),
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require('./server/ping')
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];
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module.exports=createServer;
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module.exports=createServer;
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function createServer(options) {
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function createServer(options={}) {
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options = options || {};
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const {
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const port = options.port != null ?
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host = '0.0.0.0',
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options.port :
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'server-port':serverPort,
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options['server-port'] != null ?
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port = serverPort || 25565,
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options['server-port'] :
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motd = "A Minecraft server",
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25565;
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'max-players' : maxPlayers = 20,
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const clientErrorHandler = options.errorHandler || function(client, err) {
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version : optVersion = require("./version").defaultVersion,
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client.end();
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favicon,
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};
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customPackets
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const host = options.host || '0.0.0.0';
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} = options;
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const kickTimeout = options.kickTimeout || 30 * 1000;
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const checkTimeoutInterval = options.checkTimeoutInterval || 4 * 1000;
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const onlineMode = options['online-mode'] == null ? true : options['online-mode'];
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// a function receiving the default status object and the client
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// and returning a modified response object.
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const beforePing = options.beforePing || null;
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const enableKeepAlive = options.keepAlive == null ? true : options.keepAlive;
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const optVersion = options.version || require("./version").defaultVersion;
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const mcData=require("minecraft-data")(optVersion);
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const mcData=require("minecraft-data")(optVersion);
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const version = mcData.version;
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const version = mcData.version;
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const serverKey = new NodeRSA({b: 1024});
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const server = new Server(version.minecraftVersion,options.customPackets);
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const server = new Server(version.minecraftVersion,customPackets);
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server.motd = options.motd || "A Minecraft server";
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server.mcversion=version;
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server.maxPlayers = options['max-players'] || 20;
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server.motd = motd;
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server.maxPlayers = maxPlayers;
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server.playerCount = 0;
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server.playerCount = 0;
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server.onlineModeExceptions = {};
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server.onlineModeExceptions = {};
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server.favicon = options.favicon || undefined;
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server.favicon = favicon;
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server.serverKey = new NodeRSA({b: 1024});
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server.on("connection", function(client) {
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server.on("connection", function(client) {
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client.once('set_protocol', onHandshake);
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plugins.forEach(plugin => plugin(client,server,options));
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client.once('login_start', onLogin);
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client.once('ping_start', onPing);
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client.once('legacy_server_list_ping', onLegacyPing);
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client.on('error', function(err) {
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clientErrorHandler(client, err);
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});
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client.on('end', onEnd);
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let keepAlive = false;
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let loggedIn = false;
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let lastKeepAlive = null;
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let keepAliveTimer = null;
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let loginKickTimer = setTimeout(kickForNotLoggingIn, kickTimeout);
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let serverId;
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let sendKeepAliveTime;
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function kickForNotLoggingIn() {
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client.end('LoginTimeout');
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}
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function keepAliveLoop() {
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if(!keepAlive)
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return;
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// check if the last keepAlive was too long ago (kickTimeout)
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const elapsed = new Date() - lastKeepAlive;
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if(elapsed > kickTimeout) {
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client.end('KeepAliveTimeout');
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return;
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}
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sendKeepAliveTime = new Date();
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client.write('keep_alive', {
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keepAliveId: Math.floor(Math.random() * 2147483648)
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});
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}
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function onKeepAlive() {
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if(sendKeepAliveTime) client.latency = (new Date()) - sendKeepAliveTime;
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lastKeepAlive = new Date();
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}
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function startKeepAlive() {
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keepAlive = true;
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lastKeepAlive = new Date();
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keepAliveTimer = setInterval(keepAliveLoop, checkTimeoutInterval);
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client.on('keep_alive', onKeepAlive);
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}
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function onEnd() {
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clearInterval(keepAliveTimer);
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clearTimeout(loginKickTimer);
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}
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function onPing() {
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const response = {
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"version": {
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"name": version.minecraftVersion,
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"protocol": version.version
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},
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"players": {
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"max": server.maxPlayers,
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"online": server.playerCount,
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"sample": []
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},
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"description": {"text": server.motd},
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"favicon": server.favicon
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};
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function answerToPing(err, response) {
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if ( err ) return;
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client.write('server_info', {response: JSON.stringify(response)});
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}
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if(beforePing) {
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if ( beforePing.length > 2 ) {
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beforePing(response, client, answerToPing);
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} else {
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answerToPing(null, beforePing(response, client) || response);
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}
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} else {
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answerToPing(null, response);
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}
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client.once('ping', function(packet) {
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client.write('ping', {time: packet.time});
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client.end();
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});
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}
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function onLegacyPing(packet) {
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if (packet.payload === 1) {
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const pingVersion = 1;
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sendPingResponse('\xa7' + [pingVersion, version.version, version.minecraftVersion,
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server.motd, server.playerCount.toString(), server.maxPlayers.toString()].join('\0'));
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} else {
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// ping type 0
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sendPingResponse([server.motd, server.playerCount.toString(), server.maxPlayers.toString()].join('\xa7'));
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}
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function sendPingResponse(responseString) {
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function utf16be(s) {
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return endianToggle(new Buffer(s, 'utf16le'), 16);
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}
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const responseBuffer = utf16be(responseString);
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const length = responseString.length; // UCS2 characters, not bytes
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const lengthBuffer = new Buffer(2);
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lengthBuffer.writeUInt16BE(length);
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const raw = Buffer.concat([new Buffer('ff', 'hex'), lengthBuffer, responseBuffer]);
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//client.writeRaw(raw); // not raw enough, it includes length
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client.socket.write(raw);
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}
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}
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function onLogin(packet) {
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client.username = packet.username;
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const isException = !!server.onlineModeExceptions[client.username.toLowerCase()];
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const needToVerify = (onlineMode && !isException) || (!onlineMode && isException);
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if(needToVerify) {
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serverId = crypto.randomBytes(4).toString('hex');
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client.verifyToken = crypto.randomBytes(4);
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const publicKeyStrArr = serverKey.exportKey('pkcs8-public-pem').split("\n");
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let publicKeyStr = "";
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for(let i = 1; i < publicKeyStrArr.length - 1; i++) {
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publicKeyStr += publicKeyStrArr[i]
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}
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client.publicKey = new Buffer(publicKeyStr, 'base64');
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client.once('encryption_begin', onEncryptionKeyResponse);
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client.write('encryption_begin', {
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serverId: serverId,
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publicKey: client.publicKey,
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verifyToken: client.verifyToken
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});
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} else {
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loginClient();
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}
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}
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function onHandshake(packet) {
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client.serverHost = packet.serverHost;
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client.serverPort = packet.serverPort;
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client.protocolVersion = packet.protocolVersion;
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if(packet.nextState == 1) {
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client.state = states.STATUS;
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} else if(packet.nextState == 2) {
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client.state = states.LOGIN;
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}
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if(client.protocolVersion!=version.version)
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{
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client.end("Wrong protocol version, expected: "+version.version+" and you are using: "+client.protocolVersion);
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}
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}
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function onEncryptionKeyResponse(packet) {
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let sharedSecret;
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try {
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const verifyToken = crypto.privateDecrypt({key:serverKey.exportKey(),padding:crypto.constants.RSA_PKCS1_PADDING},packet.verifyToken);
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if(!bufferEqual(client.verifyToken, verifyToken)) {
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client.end('DidNotEncryptVerifyTokenProperly');
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return;
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}
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sharedSecret = crypto.privateDecrypt({key:serverKey.exportKey(),padding:crypto.constants.RSA_PKCS1_PADDING},packet.sharedSecret);
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} catch(e) {
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client.end('DidNotEncryptVerifyTokenProperly');
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return;
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}
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client.setEncryption(sharedSecret);
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const isException = !!server.onlineModeExceptions[client.username.toLowerCase()];
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const needToVerify = (onlineMode && !isException) || (!onlineMode && isException);
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const nextStep = needToVerify ? verifyUsername : loginClient;
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nextStep();
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function verifyUsername() {
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yggserver.hasJoined(client.username, serverId, sharedSecret, client.publicKey, function(err, profile) {
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if(err) {
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client.end("Failed to verify username!");
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return;
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}
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// Convert to a valid UUID until the session server updates and does
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// it automatically
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client.uuid = profile.id.replace(/(\w{8})(\w{4})(\w{4})(\w{4})(\w{12})/, "$1-$2-$3-$4-$5");
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client.profile = profile;
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loginClient();
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});
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}
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}
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// https://github.com/openjdk-mirror/jdk7u-jdk/blob/f4d80957e89a19a29bb9f9807d2a28351ed7f7df/src/share/classes/java/util/UUID.java#L163
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function javaUUID(s)
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{
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const hash = crypto.createHash("md5");
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hash.update(s, 'utf8');
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const buffer = hash.digest();
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buffer[6] = (buffer[6] & 0x0f) | 0x30;
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buffer[8] = (buffer[8] & 0x3f) | 0x80;
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return buffer;
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}
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function nameToMcOfflineUUID(name)
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{
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return (new UUID(javaUUID("OfflinePlayer:"+name))).toString();
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}
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function loginClient() {
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const isException = !!server.onlineModeExceptions[client.username.toLowerCase()];
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if(onlineMode == false || isException) {
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client.uuid = nameToMcOfflineUUID(client.username);
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}
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if (version.version >= 27) { // 14w28a (27) added whole-protocol compression (http://wiki.vg/Protocol_History#14w28a), earlier versions per-packet compressed TODO: refactor into minecraft-data
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client.write('compress', { threshold: 256 }); // Default threshold is 256
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client.compressionThreshold = 256;
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}
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client.write('success', {uuid: client.uuid, username: client.username});
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client.state = states.PLAY;
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loggedIn = true;
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if(enableKeepAlive) startKeepAlive();
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clearTimeout(loginKickTimer);
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loginKickTimer = null;
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server.playerCount += 1;
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client.once('end', function() {
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server.playerCount -= 1;
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});
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pluginChannels(client, options);
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server.emit('login', client);
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}
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});
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});
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server.listen(port, host);
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server.listen(port, host);
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return server;
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return server;
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21
src/server/handshake.js
Normal file
21
src/server/handshake.js
Normal file
@ -0,0 +1,21 @@
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const states = require("../states");
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module.exports=function(client,server) {
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client.once('set_protocol', onHandshake);
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function onHandshake(packet) {
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client.serverHost = packet.serverHost;
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client.serverPort = packet.serverPort;
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client.protocolVersion = packet.protocolVersion;
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if (packet.nextState === 1) {
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client.state = states.STATUS;
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} else if (packet.nextState === 2) {
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client.state = states.LOGIN;
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}
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if (client.protocolVersion !== server.mcversion.version) {
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client.end("Wrong protocol version, expected: " + server.mcversion.version + " and you are using: " + client.protocolVersion);
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}
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}
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};
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37
src/server/keepalive.js
Normal file
37
src/server/keepalive.js
Normal file
@ -0,0 +1,37 @@
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module.exports=function(client,server,{kickTimeout = 30 * 1000,checkTimeoutInterval = 4 * 1000}) {
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let keepAlive = false;
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let lastKeepAlive = null;
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client._keepAliveTimer = null;
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let sendKeepAliveTime;
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function keepAliveLoop() {
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if(!keepAlive)
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return;
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// check if the last keepAlive was too long ago (kickTimeout)
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const elapsed = new Date() - lastKeepAlive;
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if(elapsed > kickTimeout) {
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client.end('KeepAliveTimeout');
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return;
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}
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sendKeepAliveTime = new Date();
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client.write('keep_alive', {
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keepAliveId: Math.floor(Math.random() * 2147483648)
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});
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}
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function onKeepAlive() {
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if(sendKeepAliveTime) client.latency = (new Date()) - sendKeepAliveTime;
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lastKeepAlive = new Date();
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}
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client._startKeepAlive= () => {
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keepAlive = true;
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lastKeepAlive = new Date();
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client._keepAliveTimer = setInterval(keepAliveLoop, checkTimeoutInterval);
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client.on('keep_alive', onKeepAlive);
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}
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};
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143
src/server/login.js
Normal file
143
src/server/login.js
Normal file
@ -0,0 +1,143 @@
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const yggserver = require('yggdrasil').server({});
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const UUID = require('uuid-1345');
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const bufferEqual = require('buffer-equal');
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const crypto = require('crypto');
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const pluginChannels = require('../client/pluginChannels');
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const states = require("../states");
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module.exports=function(client,server,options) {
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const {
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'online-mode' : onlineMode = true,
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kickTimeout = 30 * 1000,
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keepAlive : enableKeepAlive = true,
|
||||||
|
errorHandler : clientErrorHandler=(client,err) => client.end(),
|
||||||
|
} = options;
|
||||||
|
|
||||||
|
let serverId;
|
||||||
|
|
||||||
|
client.on('error', function(err) {
|
||||||
|
clientErrorHandler(client, err);
|
||||||
|
});
|
||||||
|
client.on('end', onEnd);
|
||||||
|
|
||||||
|
|
||||||
|
function onEnd() {
|
||||||
|
clearInterval(client._keepAliveTimer);
|
||||||
|
clearTimeout(loginKickTimer);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
client.once('login_start', onLogin);
|
||||||
|
|
||||||
|
let loggedIn = false;
|
||||||
|
|
||||||
|
let loginKickTimer = setTimeout(kickForNotLoggingIn, kickTimeout);
|
||||||
|
|
||||||
|
|
||||||
|
function onLogin(packet) {
|
||||||
|
client.username = packet.username;
|
||||||
|
const isException = !!server.onlineModeExceptions[client.username.toLowerCase()];
|
||||||
|
const needToVerify = (onlineMode && !isException) || (!onlineMode && isException);
|
||||||
|
if(needToVerify) {
|
||||||
|
serverId = crypto.randomBytes(4).toString('hex');
|
||||||
|
client.verifyToken = crypto.randomBytes(4);
|
||||||
|
const publicKeyStrArr = server.serverKey.exportKey('pkcs8-public-pem').split("\n");
|
||||||
|
let publicKeyStr = "";
|
||||||
|
for(let i = 1; i < publicKeyStrArr.length - 1; i++) {
|
||||||
|
publicKeyStr += publicKeyStrArr[i]
|
||||||
|
}
|
||||||
|
client.publicKey = new Buffer(publicKeyStr, 'base64');
|
||||||
|
client.once('encryption_begin', onEncryptionKeyResponse);
|
||||||
|
client.write('encryption_begin', {
|
||||||
|
serverId: serverId,
|
||||||
|
publicKey: client.publicKey,
|
||||||
|
verifyToken: client.verifyToken
|
||||||
|
});
|
||||||
|
} else {
|
||||||
|
loginClient();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
function kickForNotLoggingIn() {
|
||||||
|
client.end('LoginTimeout');
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
function onEncryptionKeyResponse(packet) {
|
||||||
|
let sharedSecret;
|
||||||
|
try {
|
||||||
|
const verifyToken = crypto.privateDecrypt({key:server.serverKey.exportKey(),padding:crypto.constants.RSA_PKCS1_PADDING},packet.verifyToken);
|
||||||
|
if(!bufferEqual(client.verifyToken, verifyToken)) {
|
||||||
|
client.end('DidNotEncryptVerifyTokenProperly');
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
sharedSecret = crypto.privateDecrypt({key:server.serverKey.exportKey(),padding:crypto.constants.RSA_PKCS1_PADDING},packet.sharedSecret);
|
||||||
|
} catch(e) {
|
||||||
|
client.end('DidNotEncryptVerifyTokenProperly');
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
client.setEncryption(sharedSecret);
|
||||||
|
|
||||||
|
const isException = !!server.onlineModeExceptions[client.username.toLowerCase()];
|
||||||
|
const needToVerify = (onlineMode && !isException) || (!onlineMode && isException);
|
||||||
|
const nextStep = needToVerify ? verifyUsername : loginClient;
|
||||||
|
nextStep();
|
||||||
|
|
||||||
|
function verifyUsername() {
|
||||||
|
yggserver.hasJoined(client.username, serverId, sharedSecret, client.publicKey, function(err, profile) {
|
||||||
|
if(err) {
|
||||||
|
client.end("Failed to verify username!");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
// Convert to a valid UUID until the session server updates and does
|
||||||
|
// it automatically
|
||||||
|
client.uuid = profile.id.replace(/(\w{8})(\w{4})(\w{4})(\w{4})(\w{12})/, "$1-$2-$3-$4-$5");
|
||||||
|
client.profile = profile;
|
||||||
|
loginClient();
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
// https://github.com/openjdk-mirror/jdk7u-jdk/blob/f4d80957e89a19a29bb9f9807d2a28351ed7f7df/src/share/classes/java/util/UUID.java#L163
|
||||||
|
function javaUUID(s)
|
||||||
|
{
|
||||||
|
const hash = crypto.createHash("md5");
|
||||||
|
hash.update(s, 'utf8');
|
||||||
|
const buffer = hash.digest();
|
||||||
|
buffer[6] = (buffer[6] & 0x0f) | 0x30;
|
||||||
|
buffer[8] = (buffer[8] & 0x3f) | 0x80;
|
||||||
|
return buffer;
|
||||||
|
}
|
||||||
|
|
||||||
|
function nameToMcOfflineUUID(name)
|
||||||
|
{
|
||||||
|
return (new UUID(javaUUID("OfflinePlayer:"+name))).toString();
|
||||||
|
}
|
||||||
|
|
||||||
|
function loginClient() {
|
||||||
|
const isException = !!server.onlineModeExceptions[client.username.toLowerCase()];
|
||||||
|
if(onlineMode === false || isException) {
|
||||||
|
client.uuid = nameToMcOfflineUUID(client.username);
|
||||||
|
}
|
||||||
|
if (server.mcversion.version >= 27) { // 14w28a (27) added whole-protocol compression (http://wiki.vg/Protocol_History#14w28a), earlier versions per-packet compressed TODO: refactor into minecraft-data
|
||||||
|
client.write('compress', { threshold: 256 }); // Default threshold is 256
|
||||||
|
client.compressionThreshold = 256;
|
||||||
|
}
|
||||||
|
client.write('success', {uuid: client.uuid, username: client.username});
|
||||||
|
client.state = states.PLAY;
|
||||||
|
loggedIn = true;
|
||||||
|
if(enableKeepAlive) client._startKeepAlive();
|
||||||
|
|
||||||
|
clearTimeout(loginKickTimer);
|
||||||
|
loginKickTimer = null;
|
||||||
|
|
||||||
|
server.playerCount += 1;
|
||||||
|
client.once('end', function() {
|
||||||
|
server.playerCount -= 1;
|
||||||
|
});
|
||||||
|
pluginChannels(client, options);
|
||||||
|
server.emit('login', client);
|
||||||
|
}
|
||||||
|
|
||||||
|
};
|
||||||
71
src/server/ping.js
Normal file
71
src/server/ping.js
Normal file
@ -0,0 +1,71 @@
|
|||||||
|
const endianToggle = require('endian-toggle');
|
||||||
|
|
||||||
|
module.exports=function(client,server,{beforePing = null}) {
|
||||||
|
client.once('ping_start', onPing);
|
||||||
|
client.once('legacy_server_list_ping', onLegacyPing);
|
||||||
|
|
||||||
|
function onPing() {
|
||||||
|
const response = {
|
||||||
|
"version": {
|
||||||
|
"name": server.mcversion.minecraftVersion,
|
||||||
|
"protocol": server.mcversion.version
|
||||||
|
},
|
||||||
|
"players": {
|
||||||
|
"max": server.maxPlayers,
|
||||||
|
"online": server.playerCount,
|
||||||
|
"sample": []
|
||||||
|
},
|
||||||
|
"description": {"text": server.motd},
|
||||||
|
"favicon": server.favicon
|
||||||
|
};
|
||||||
|
|
||||||
|
function answerToPing(err, response) {
|
||||||
|
if ( err ) return;
|
||||||
|
client.write('server_info', {response: JSON.stringify(response)});
|
||||||
|
}
|
||||||
|
|
||||||
|
if(beforePing) {
|
||||||
|
if ( beforePing.length > 2 ) {
|
||||||
|
beforePing(response, client, answerToPing);
|
||||||
|
} else {
|
||||||
|
answerToPing(null, beforePing(response, client) || response);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
answerToPing(null, response);
|
||||||
|
}
|
||||||
|
|
||||||
|
client.once('ping', function(packet) {
|
||||||
|
client.write('ping', {time: packet.time});
|
||||||
|
client.end();
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
function onLegacyPing(packet) {
|
||||||
|
if (packet.payload === 1) {
|
||||||
|
const pingVersion = 1;
|
||||||
|
sendPingResponse('\xa7' + [pingVersion, server.mcversion.version, server.mcversion.minecraftVersion,
|
||||||
|
server.motd, server.playerCount.toString(), server.maxPlayers.toString()].join('\0'));
|
||||||
|
} else {
|
||||||
|
// ping type 0
|
||||||
|
sendPingResponse([server.motd, server.playerCount.toString(), server.maxPlayers.toString()].join('\xa7'));
|
||||||
|
}
|
||||||
|
|
||||||
|
function sendPingResponse(responseString) {
|
||||||
|
function utf16be(s) {
|
||||||
|
return endianToggle(new Buffer(s, 'utf16le'), 16);
|
||||||
|
}
|
||||||
|
|
||||||
|
const responseBuffer = utf16be(responseString);
|
||||||
|
|
||||||
|
const length = responseString.length; // UCS2 characters, not bytes
|
||||||
|
const lengthBuffer = new Buffer(2);
|
||||||
|
lengthBuffer.writeUInt16BE(length);
|
||||||
|
|
||||||
|
const raw = Buffer.concat([new Buffer('ff', 'hex'), lengthBuffer, responseBuffer]);
|
||||||
|
|
||||||
|
//client.writeRaw(raw); // not raw enough, it includes length
|
||||||
|
client.socket.write(raw);
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
};
|
||||||
@ -1,6 +1,6 @@
|
|||||||
'use strict';
|
'use strict';
|
||||||
|
|
||||||
module.exports={
|
module.exports={
|
||||||
defaultVersion:'1.8',
|
defaultVersion:'1.12',
|
||||||
supportedVersions:['1.7','1.8','1.9','1.10','1.11.2','1.12']
|
supportedVersions:['1.7','1.8','1.9','1.10','1.11.2','1.12']
|
||||||
};
|
};
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user