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https://github.com/barronwaffles/dwc_network_server_emulator.git
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375 lines
13 KiB
Python
375 lines
13 KiB
Python
# DWC Network Server Emulator
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# Copyright (C) 2014 polaris-
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# Copyright (C) 2014 ToadKing
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# Copyright (C) 2014 AdmiralCurtiss
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# Copyright (C) 2014 msoucy
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import logging
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import time
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import traceback
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import re
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from twisted.internet.protocol import Factory
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from twisted.internet.endpoints import serverFromString
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from twisted.protocols.basic import LineReceiver
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from twisted.internet import reactor
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from twisted.internet.error import ReactorAlreadyRunning
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import gamespy.gs_database as gs_database
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import gamespy.gs_query as gs_query
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import gamespy.gs_utility as gs_utils
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import other.utils as utils
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# Logger settings
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logger_output_to_console = True
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logger_output_to_file = True
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logger_name = "GameSpyGamestatsServer"
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logger_filename = "gamespy_gamestats_server.log"
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logger = utils.create_logger(logger_name, logger_filename, -1, logger_output_to_console, logger_output_to_file)
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address = ("0.0.0.0", 29920)
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class GameSpyGamestatsServer(object):
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def __init__(self):
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pass
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def start(self):
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endpoint_search = serverFromString(reactor, "tcp:%d:interface=%s" % (address[1], address[0]))
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conn_search = endpoint_search.listen(GamestatsFactory())
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try:
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if reactor.running == False:
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reactor.run(installSignalHandlers=0)
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except ReactorAlreadyRunning:
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pass
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class GamestatsFactory(Factory):
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def __init__(self):
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logger.log(logging.INFO, "Now listening for connections on %s:%d...", address[0], address[1])
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self.sessions = {}
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def buildProtocol(self, address):
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return Gamestats(self.sessions, address)
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class Gamestats(LineReceiver):
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def __init__(self, sessions, address):
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self.setRawMode() # We're dealing with binary data so set to raw mode
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self.db = gs_database.GamespyDatabase()
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self.sessions = sessions
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self.address = address
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self.remaining_message = "" # Stores any unparsable/incomplete commands until the next rawDataReceived
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self.session = ""
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self.gameid = ""
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self.lid = "0"
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self.data = ""
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def log(self, level, message):
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if self.session == "":
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if self.gameid == "":
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logger.log(level, "[%s:%d] %s", self.address.host, self.address.port,message)
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else:
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logger.log(level, "[%s:%d | %s] %s", self.address.host, self.address.port, self.gameid, message)
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else:
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if self.gameid == "":
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logger.log(level, "[%s:%d | %s] %s", self.address.host, self.address.port, self.session, message)
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else:
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logger.log(level, "[%s:%d | %s | %s] %s", self.address.host, self.address.port, self.session, self.gameid, message)
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def connectionMade(self):
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try:
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self.log(logging.INFO, "Received connection from %s:%d" % (self.address.host, self.address.port))
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# Generate a random challenge string
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self.challenge = utils.generate_random_str(10, "ABCDEFGHIJKLMNOPQRSTUVWXYZ")
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# The first command sent to the client is always a login challenge containing the server challenge key.
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msg = gs_query.create_gamespy_message([
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('__cmd__', "lc"),
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('__cmd_val__', "1"),
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('challenge', self.challenge),
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('id', "1"),
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])
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self.log(logging.DEBUG, "SENDING: '%s'..." % msg)
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msg = self.crypt(msg)
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self.transport.write(bytes(msg))
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except:
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self.log(logging.ERROR, "Unknown exception: %s" % traceback.format_exc())
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def connectionLost(self, reason):
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return
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def rawDataReceived(self, data):
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try:
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# Decrypt packet
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self.remaining_message += data
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if "\\final\\" not in data:
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return
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msg = str(self.crypt(self.remaining_message))
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self.data = msg
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self.remaining_message = ""
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commands, self.remaining_message = gs_query.parse_gamespy_message(msg)
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logger.log(logging.DEBUG, "STATS RESPONSE: %s" % msg)
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cmds = {
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"auth": self.perform_auth,
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"authp": self.perform_authp,
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"ka": self.perform_ka,
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"setpd": self.perform_setpd,
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"getpd": self.perform_getpd,
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"newgame": self.perform_newgame,
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"updgame": self.perform_updgame,
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}
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def cmd_err(data_parsed):
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logger.log(logging.DEBUG, "Found unknown command, don't know how to handle '%s'.", data_parsed['__cmd__'])
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for data_parsed in commands:
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print(data_parsed)
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cmds.get(data_parsed['__cmd__'], cmd_err)(data_parsed)
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except:
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self.log(logging.ERROR, "Unknown exception: %s" % traceback.format_exc())
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def perform_auth(self, data_parsed):
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self.log(logging.DEBUG, "Parsing 'auth'...")
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if "gamename" in data_parsed:
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self.gameid = data_parsed['gamename']
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self.session = utils.generate_random_number_str(10)
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msg = gs_query.create_gamespy_message([
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('__cmd__', "lc"),
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('__cmd_val__', "2"),
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('sesskey', self.session),
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('proof', 0),
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('id', "1"),
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])
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self.log(logging.DEBUG, "SENDING: '%s'..." % msg)
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msg = self.crypt(msg)
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self.transport.write(bytes(msg))
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def perform_authp(self, data_parsed):
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authtoken_parsed = gs_utils.parse_authtoken(data_parsed['authtoken'], self.db)
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#print authtoken_parsed
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if "lid" in data_parsed:
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self.lid = data_parsed['lid']
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userid, profileid, gsbrcd, uniquenick = gs_utils.login_profile_via_parsed_authtoken(authtoken_parsed, self.db)
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if profileid != None:
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# Successfully logged in or created account, continue creating session.
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sesskey = self.db.create_session(profileid, '')
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self.sessions[profileid] = self
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self.profileid = int(profileid)
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msg = gs_query.create_gamespy_message([
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('__cmd__', "pauthr"),
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('__cmd_val__', profileid),
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('lid', self.lid),
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])
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else:
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# login failed
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self.log(logging.WARNING, "Invalid password")
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msg = gs_query.create_gamespy_message([
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('__cmd__', "pauthr"),
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('__cmd_val__', -3),
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('lid', self.lid),
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('errmsg', 'Invalid Validation'),
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])
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self.log(logging.DEBUG, "SENDING: '%s'..." % msg)
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msg = self.crypt(msg)
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self.transport.write(bytes(msg))
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def perform_ka(self, data_parsed):
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msg = gs_query.create_gamespy_message([
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('__cmd__', "ka"),
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('__cmd_val__', ""),
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])
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self.log(logging.DEBUG, "SENDING: '%s'..." % msg)
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msg = self.crypt(msg)
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self.transport.write(bytes(msg))
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return
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def perform_setpd(self, data_parsed):
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data = self.data
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msg = gs_query.create_gamespy_message([
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('__cmd__', "setpdr"),
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('__cmd_val__', 1),
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('lid', self.lid),
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('pid', self.profileid),
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('mod', int(time.time())),
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])
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self.log(logging.DEBUG, "SENDING: '%s'..." % msg)
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msg = self.crypt(msg)
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self.transport.write(bytes(msg))
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# TODO: Return error message.
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if int(data_parsed['pid']) != self.profileid:
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logger.log(logging.WARNING, "ERROR: %d tried to update %d's profile" % (int(data_parsed['pid']), self.profileid))
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return
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data_str = "\\data\\"
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length = int(data_parsed['length'])
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if len(data) < length:
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# The packet isn't complete yet, keep loop until we get the entire packet.
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# The length entire packet SHOULD always be greater than the data field, so this check should be fine.
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return
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if data_str in data:
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idx = data.index(data_str) + len(data_str)
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data = data[idx:idx+length].rstrip("\\")
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else:
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logger.log(logging.ERROR, "ERROR: Could not find \data\ in setpd command: %s", data)
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data = ""
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current_data = self.db.pd_get(self.profileid, data_parsed['dindex'], data_parsed['ptype'])
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if current_data and data and 'data' in current_data:
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current_data = current_data['data'].lstrip('\\').split('\\')
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new_data = data.lstrip('\\').split('\\')
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current_data = dict(zip(current_data[0::2],current_data[1::2]))
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new_data = dict(zip(new_data[0::2],new_data[1::2]))
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for k in new_data.keys():
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current_data[k] = new_data[k]
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data = "\\"
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for k in current_data.keys():
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data += k+"\\"+current_data[k]+"\\"
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data = data.rstrip("\\") # Don't put trailing \ into db
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self.db.pd_insert(self.profileid, data_parsed['dindex'], data_parsed['ptype'], data)
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def perform_getpd(self, data_parsed):
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pid = int(data_parsed['pid'])
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profile = self.db.pd_get(pid, data_parsed['dindex'], data_parsed['ptype'])
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if profile == None:
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self.log(logging.WARNING, "Could not find profile for %d %s %s" % (pid, data_parsed['dindex'], data_parsed['ptype']))
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keys = data_parsed['keys'].split('\x01')
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profile_data = None
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data = ""
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# Someone figure out if this is actually a good way to handle this when no profile is found
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if profile != None and 'data' in profile:
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profile_data = profile['data']
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if profile_data.endswith("\\"):
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profile_data = profile_data[:-1]
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profile_data = gs_query.parse_gamespy_message("\\prof\\" + profile_data + "\\final\\")
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if profile_data != None:
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profile_data = profile_data[0][0]
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else:
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self.log(logging.WARNING, "Could not get data section from profile for %d" % pid)
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if len(keys):
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for key in (key for key in keys if key not in ("__cmd__", "__cmd_val__", "")):
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data += "\\" + key + "\\"
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if profile_data != None and key in profile_data:
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data += profile_data[key]
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else:
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self.log(logging.WARNING, "No keys requested, defaulting to all keys: %s" % (profile['data']))
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data = profile['data']
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modified = int(time.time())
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msg = gs_query.create_gamespy_message([
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('__cmd__', "getpdr"),
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('__cmd_val__', 1),
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('lid', self.lid),
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('pid', pid),
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('mod', modified),
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('length', len(data)),
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('data', data),
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])
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msg = msg.replace("\\data\\","\\data\\\\") # data needs to be preceded by an extra slash
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datastring = ""
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try:
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datastring = re.findall('.*data\\\\(.*)',msg)[0].replace("\\final\\","")
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except:
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pass
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# This works because the data string is a key-value pair, splitting the
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# string by \ should yield a list with an even number of elements. But,
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# because of the extra \ prepended to the datastring, it'll be odd.
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# So ultimately I expect the list to have an odd number of elements.
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# If it's even, len(list)%2 will be zero... and that means the last
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# field in the datastring is empty and doesn't have a closing \.
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if datastring and not len(datastring.split('\\')) % 2:
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msg = msg.replace("\\final\\","\\\\final\\") # An empty field must be terminated by \ before \final\
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self.log(logging.DEBUG, "SENDING: '%s'..." % msg)
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msg = self.crypt(msg)
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self.transport.write(bytes(msg))
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def perform_newgame(self, data_parsed):
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# No op
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return
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def perform_updgame(self, data_parsed):
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# No op
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return
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def crypt(self, data):
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key = "GameSpy3D"
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output = bytearray(data.encode("ascii"))
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if "\\final\\" in output:
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end = output.index("\\final\\")
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else:
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end = len(output)
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for i in range(end):
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output[i] ^= ord(key[i % len(key)])
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return output
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if __name__ == "__main__":
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gsss = GameSpyGamestatsServer()
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gsss.start()
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