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repeater.js
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repeater.js
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var misc = require('./misc.js'); //miscellaneous things
var servers = require('./servers.js');
var WebSocket = require('ws');
var WebSocketServer = WebSocket.Server;
var streamer = null;
var viewers = [];
var _last_ball_hack = null;
var wss_viewer, wss_streamer;
misc.help(['viewer-port', 'streamer-port', 'agario-server', 'server-key', 'server-region', 'server-type']); //display help if requested
var viewer_port = misc.readParam('viewer-port'); //port where all your viewers will connect
var streamer_port = misc.readParam('streamer-port'); //port for streamer
var agar_server = misc.readParam('agario-server'); //agar server
var server_key = misc.readParam('server-key'); //server key
var server_region = misc.readParam('server-region'); //server region
var server_type = misc.readParam('server-type'); //server type
wss_viewer = new WebSocketServer({port: viewer_port});
wss_streamer = new WebSocketServer({port: streamer_port});
wss_streamer.on('connection', function(wsc) {
if(streamer) streamer.destroy();
streamer = new Streamer(wsc);
});
wss_viewer.on('connection', function(wsc) {
new Viewer(wsc);
});
console.log('agar.io repeater started');
if(agar_server != 'random' && !server_key)
console.log('[Warning] You did not set server key, server may ignore/disconnect you');
console.log('');
console.log('Open in browser http://agar.io/ and execute in console:');
console.log('For viewers:');
console.log(' connect("ws://127.0.0.1:' + viewer_port + '/","");');
console.log('For streamer:');
console.log(' connect("ws://127.0.0.1:' + streamer_port + '/","");');
console.log('');
console.log('Waiting for connections...');
function Streamer(wsc) {
this.wsc = wsc;
this.name = wsc.upgradeReq.connection.remoteAddress + ':' + wsc.upgradeReq.connection.remotePort;
this.send_queue = [];
this.destroyed = false;
streamer = this;
this.log('Streamer connected');
this.wsc.on('message', this.onStreamerMessage.bind(this));
this.wsc.on('close', this.onStreamerClose.bind(this));
this.wsc.on('error', this.onStreamerError.bind(this));
this.prepareServer();
}
Streamer.prototype = {
destroy: function() {
if(this.destroyed) return;
this.destroyed = true;
if(this.ws) this.ws.close();
this.wsc.close();
streamer = null;
this.log('Streamer destroyed');
},
onStreamerMessage: function(buff) {
if(this.destroyed) return;
//ignore initial packets, we will emulate them
if(buff[0] == 255) return;
if(buff[0] == 254) return;
if(buff[0] == 80) return;
if(this.ws && this.ws.readyState === WebSocket.OPEN) {
this.ws.send(buff);
}else{
this.send_queue.push(buff);
}
},
onStreamerClose: function() {
if(this.destroyed) return;
this.log('Streamer disconnected');
this.destroy();
},
onStreamerError: function(e) {
if(this.destroyed) return;
this.log('Streamer connection error: ' + e);
this.destroy();
},
prepareServer: function() {
var streamer = this;
if(agar_server == 'random') {
var opt = {
region: server_region
};
var getAgarioServer;
if(server_type == 'teams') {
getAgarioServer = servers.getTeamsServer.bind(servers);
}else if(server_type == 'experimental') {
getAgarioServer = servers.getExperimentalServer.bind(servers);
}else if(server_type == 'party') {
if(server_key) {
opt.party_key = server_key;
getAgarioServer = servers.getPartyServer.bind(servers);
}else{
getAgarioServer = servers.createParty.bind(servers);
}
}else{ //FFA
getAgarioServer = servers.getFFAServer.bind(servers);
}
streamer.log('Requesting ' + server_type + ' server');
getAgarioServer(opt, function(srv) {
if(srv.server) {
streamer.log('Got server ' + srv.server + ' with key ' + srv.key);
return streamer.connectToAgar('ws://' + srv.server, srv.key);
}
streamer.log('Failed to request server (error=' + srv.error + ', error_source=' + srv.error_source + ')');
streamer.destroy();
});
}else{
this.connectToAgar(agar_server, server_key);
}
},
connectToAgar: function(agar_server, server_key) {
var streamer = this;
this.log('Connecting to agar');
this.ws = new WebSocket(agar_server, null, {headers: {'Origin': 'http://agar.io'}});
this.ws.onopen = function() {
if(streamer.destroyed) return streamer.ws.close();
streamer.log('Repeater connected to agar');
//initialization emulation start
var buf = new Buffer(5);
buf.writeUInt8(254, 0);
buf.writeUInt32LE(5, 1);
streamer.ws.send(buf);
buf = new Buffer(5);
buf.writeUInt8(255, 0);
buf.writeUInt32LE(servers.init_key, 1);
streamer.ws.send(buf);
if(server_key) {
buf = new Buffer(1 + server_key.length);
buf.writeUInt8(80, 0);
for (var i=1;i<=server_key.length;++i) {
buf.writeUInt8(server_key.charCodeAt(i-1), i);
}
streamer.ws.send(buf);
}
//initialization emulation end
for(var j=0;j<streamer.send_queue.length;j++) {
var packet = streamer.send_queue[j];
//if this is spawn packet, then wait 2000ms or server will ignore us
if(packet[0] == 0) {
(function(packet){
setTimeout(function(){
streamer.ws.send(packet);
},2000);
})(packet);
}else{
streamer.ws.send(packet);
}
}
streamer.send_queue = [];
};
this.ws.onmessage = function(msg){
if(streamer.destroyed) return;
if(streamer.wsc && streamer.wsc.readyState === WebSocket.OPEN) {
streamer.wsc.send(msg.data);
}
for(var i=0;i<viewers.length;i++) {
var viewer = viewers[i];
if(!viewer.wsc) continue;
if(viewer.wsc.readyState !== WebSocket.OPEN) continue;
viewer.wsc.send(msg.data);
}
if(msg.data[0] == 32 || (msg.data[0] == 240 && msg.data[5] == 32) ) {
_last_ball_hack = msg.data;
}
};
this.ws.onclose = function() {
streamer.log('Agar closed connection');
streamer.destroy();
};
this.ws.onerror = function(e) {
streamer.log('Agar connection error: ' + e);
streamer.destroy();
};
},
log: function(msg) {
var now = new Date();
var time = ('0' + now.getHours()).substr(-2) + ":"
+ ('0' + now.getMinutes()).substr(-2) + ":"
+ ('0' + now.getSeconds()).substr(-2);
console.log(time + ' streamer ' + this.name + ') ' + msg);
}
};
function Viewer(wsc) {
this.wsc = wsc;
this.name = wsc.upgradeReq.connection.remoteAddress + ':' + wsc.upgradeReq.connection.remotePort;
var client = this;
viewers.push(this);
this.log('Connected');
this.wsc.on('message', function(buff) {
if(buff[0] != 255) return;
if(_last_ball_hack) client.wsc.send(_last_ball_hack);
});
this.wsc.on('close', function() {
client.destroy();
});
this.wsc.on('error', function() {
client.destroy();
});
}
Viewer.prototype = {
destroy: function() {
for(var i=0;i<viewers.length;i++) {
if(viewers[i].name != this.name) continue;
viewers.splice(i, 1);
break;
}
this.log('Disconnected');
},
log: function(msg) {
var now = new Date();
var time = ('0' + now.getHours()).substr(-2) + ":"
+ ('0' + now.getMinutes()).substr(-2) + ":"
+ ('0' + now.getSeconds()).substr(-2);
console.log(time + ' viewer ' + this.name + ') ' + msg);
}
};