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Michael Morrison 2013-07-10 05:02:48 -05:00
commit 8552d0674f
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147
protocols/source.js Normal file
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var async = require('async');
module.exports = require('./core').extend({
init: function() {
this._super();
this.goldsrc = false;
},
run: function() {
var self = this;
var challenge;
var state = {};
async.series([
function(c) {
self.sendPacket(
0x54,false,new Buffer('Source Engine Query'),
self.goldsrc ? 0x6D : 0x49,
function(b) {
var reader = self.reader(b);
if(self.goldsrc) state.address = reader.string();
else state.protocol = reader.uint(1);
state.name = reader.string();
state.map = reader.string();
state.folder = reader.string();
state.game = reader.string();
state.steamappid = reader.uint(2);
state.numplayers = reader.uint(1);
state.maxplayers = reader.uint(1);
if(self.goldsrc) state.protocol = reader.uint(1);
else state.numbots = reader.uint(1);
state.listentype = String.fromCharCode(reader.uint(1));
state.environment = String.fromCharCode(reader.uint(1));
state.passworded = reader.uint(1);
if(self.goldsrc) {
state.ismod = reader.uint(1);
if(state.ismod) {
state.modlink = reader.string();
state.moddownload = reader.string();
reader.skip(1);
state.modversion = reader.uint(4);
state.modsize = reader.uint(4);
state.modtype = reader.uint(1);
state.moddll = reader.uint(1);
}
}
state.secure = reader.uint(1);
if(self.goldsrc) {
state.numbots = reader.uint(1);
} else {
if(state.folder == 'ship') {
state.shipmode = reader.uint(1);
state.shipwitnesses = reader.uint(1);
state.shipduration = reader.uint(1);
}
state.version = reader.string();
var extraFlag = reader.uint(1);
if(extraFlag & 0x80) state.port = reader.uint(2);
if(extraFlag & 0x10) state.steamid = reader.uint(8);
if(extraFlag & 0x40) {
state.sourcetvport = reader.uint(2);
state.sourcetvname = reader.string();
}
if(extraFlag & 0x20) state.tags = reader.string();
if(extraFlag & 0x01) state.gameid = reader.uint(8);
}
c();
}
);
},
function(c) {
self.sendPacket(0x55,0xffffffff,false,0x41,function(b) {
var reader = self.reader(b);
challenge = reader.uint(4);
c();
});
},
function(c) {
self.sendPacket(0x55,challenge,false,0x44,function(b) {
var reader = self.reader(b);
var num = reader.uint(1);
state.players = [];
for(var i = 0; i < num; i++) {
reader.skip(1);
var name = reader.string();
var score = reader.uint(4);
var time = reader.float();
state.players.push({
name:name, score:score, time:time
});
}
c();
});
},
function(c) {
self.sendPacket(0x56,challenge,false,0x45,function(b) {
var reader = self.reader(b);
var num = reader.uint(2);
state.rules = [];
for(var i = 0; i < num; i++) {
var key = reader.string();
var value = reader.string();
state.rules[key] = value;
}
c();
});
},
function(c) {
self.finish(state);
}
]);
},
sendPacket: function(type,challenge,payload,expect,callback) {
var self = this;
var challengeLength = challenge === false ? 0 : 4;
var payloadLength = payload ? payload.length : 0;
var b = new Buffer(5 + challengeLength + payloadLength);
b.writeInt32LE(-1, 0);
b.writeUInt8(type, 4);
if(challengeLength) b.writeUInt32LE(challenge, 5);
if(payloadLength) payload.copy(b, 5+challengeLength);
function received(payload) {
var type = payload.readUInt8(0);
if(type != expect) return;
callback(payload.slice(1));
return true;
}
var packets = [];
this.udpSend(b,function(buffer) {
var header = buffer.readInt32LE(0);
if(header == -1) return received(buffer.slice(4));
// partial pack
console.log(buffer);
});
}
});