steam/lib/handlers/trading/index.js

Lets you interface with Steam without running an actual Steam client

var EventEmitter = require('events').EventEmitter;
var Steam = require('../../steam_client');

var EMsg = Steam.EMsg;
var schema = Steam.Internal;


function SteamTrading(steamClient) {
  this._client = steamClient;
  this._client.on('message', function(header, body, callback) {
    if (header.msg in handlers)
      handlers[header.msg].call(this, body, callback);
  }.bind(this));
}

require('util').inherits(SteamTrading, EventEmitter);


// Methods

SteamTrading.prototype.trade = function(user) {
  this._client.send({
    msg: EMsg.EconTrading_InitiateTradeRequest,
    proto: {}
  }, new schema.CMsgTrading_InitiateTradeRequest({
    other_steamid: user
  }).toBuffer());
};

SteamTrading.prototype.respondToTrade = function(tradeId, acceptTrade) {
  this._client.send({
    msg: EMsg.EconTrading_InitiateTradeResponse,
    proto: {}
  }, new schema.CMsgTrading_InitiateTradeResponse({
    trade_request_id: tradeId,
    response: +!acceptTrade
  }).toBuffer());
};

SteamTrading.prototype.cancelTrade = function(user) {
  this._client.send({
    msg: EMsg.EconTrading_CancelTradeRequest,
    proto: {}
  }, new schema.CMsgTrading_CancelTradeRequest({
    other_steamid: user
  }).toBuffer());
};


// Handlers

var handlers = {};

handlers[EMsg.EconTrading_InitiateTradeProposed] = function(data) {
  var tradeProp = Steam._processProto(schema.CMsgTrading_InitiateTradeRequest.decode(data));
  this.emit('tradeProposed', tradeProp.trade_request_id, tradeProp.other_steamid, tradeProp.other_name);
};

handlers[EMsg.EconTrading_InitiateTradeResult] = function(data) {
  var tradeResult = Steam._processProto(schema.CMsgTrading_InitiateTradeResponse.decode(data));
  this.emit('tradeResult', tradeResult.trade_request_id, tradeResult.response, tradeResult.other_steamid);
};

handlers[EMsg.EconTrading_StartSession] = function(data) {
  var startSess = schema.CMsgTrading_StartSession.decode(data);
  this.emit('sessionStart', startSess.other_steamid.toString());
};


Steam.SteamTrading = SteamTrading;