mirror of
https://github.com/de2tla2f/pymaster.git
synced 2024-11-21 18:41:27 +00:00
refactor: delete some shitcode
This commit is contained in:
parent
4fa50a3bd0
commit
d8c8fe9c54
209
pymaster.py
Executable file → Normal file
209
pymaster.py
Executable file → Normal file
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@ -12,11 +12,9 @@ from time import time
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from server_entry import ServerEntry
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from protocol import MasterProtocol
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LOG_FILENAME = 'pymaster.log'
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LOG_FILENAME = "pymaster.log"
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MAX_SERVERS_FOR_IP = 14
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def logPrint( msg ):
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logging.debug( msg )
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class PyMaster:
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def __init__(self, ip, port):
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@ -24,127 +22,148 @@ class PyMaster:
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self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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self.sock.bind((ip, port))
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logPrint("Welcome to PyMaster!")
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logPrint("I ask you again, are you my master?")
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logPrint("Running on %s:%d" % (ip, port))
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logging.debug("Welcome to PyMaster!")
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logging.debug("I ask you again, are you my master? @-@")
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logging.debug("Running on %s:%d" % (ip, port))
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def serverLoop(self):
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def server_loop(self):
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data, addr = self.sock.recvfrom(1024)
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data = data.decode('latin_1')
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data = data.decode("latin_1")
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if( data[0] == MasterProtocol.clientQuery ):
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self.clientQuery(data, addr)
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elif( data[0] == MasterProtocol.challengeRequest ):
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self.sendChallengeToServer(data, addr)
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elif( data[0] == MasterProtocol.addServer ):
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self.addServerToList(data, addr)
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elif( data[0] == MasterProtocol.removeServer ):
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self.removeServerFromList(data, addr)
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else:
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logPrint("Unknown message: {0} from {1}:{2}".format(data, addr[0], addr[1]))
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match data[0]:
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case MasterProtocol.clientQuery:
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self.client_query(data, addr)
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case MasterProtocol.challengeRequest:
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self.send_challenge_to_server(data, addr)
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case MasterProtocol.addServer:
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self.add_server_to_list(data, addr)
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case MasterProtocol.removeServer:
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self.remove_server_from_list(data, addr)
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case other:
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logging.debug("Unknown message: {0} from {1}:{2}".format(data, addr[0], addr[1]))
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def clientQuery(self, data, addr):
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def client_query(self, data, addr):
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region = data[1] # UNUSED
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data = data.strip('1' + region)
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data = data.strip("1" + region)
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try:
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query = data.split('\0')
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query = data.split("\0")
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except ValueError:
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logPrint(traceback.format_exc())
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logging.debug(traceback.format_exc())
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return
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queryAddr = query[0] # UNUSED
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rawFilter = query[1]
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# Remove first \ character
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rawFilter = rawFilter.strip('\\')
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split = rawFilter.split('\\')
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rawFilter = rawFilter.strip("\\")
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split = rawFilter.split("\\")
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# Use NoneType as undefined
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gamedir = 'valve' # halflife, by default
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gamedir = "valve" # halflife, by default
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clver = None
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nat = 0
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for i in range(0, len(split), 2):
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try:
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key = split[i + 1]
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if( split[i] == 'gamedir' ):
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if split[i] == "gamedir":
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gamedir = key.lower() # keep gamedir in lowercase
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elif( split[i] == 'nat' ):
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elif split[i] == "nat":
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nat = int(key)
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elif( split[i] == 'clver' ):
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elif split[i] == "clver":
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clver = key
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else:
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logPrint('Unhandled info string entry: {0}/{1}. Infostring was: {2}'.format(split[i], key, split))
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logging.debug(
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"Unhandled info string entry: {0}/{1}. Infostring was: {2}".format(
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split[i], key, split
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)
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)
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except IndexError:
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pass
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if( clver == None ): # Probably an old vulnerable version
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self.fakeInfoForOldVersions( gamedir, addr )
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if clver is None: # Probably an old vulnerable version
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self.fake_info_for_old_versions(gamedir, addr)
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return
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packet = MasterProtocol.queryPacketHeader
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for i in self.serverList:
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if( time() > i.die ):
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if time() > i.die:
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self.serverList.remove(i)
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continue
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if( not i.check ):
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if not i.check:
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continue
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if( nat != i.nat ):
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if nat != i.nat:
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continue
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if( gamedir != None ):
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if( gamedir != i.gamedir ):
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if gamedir is not None and gamedir != i.gamedir:
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continue
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if( nat ):
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reply = '\xff\xff\xff\xffc {0}:{1}'.format( addr[0], addr[1] )
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data = reply.encode( 'latin_1' )
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if nat:
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reply = "\xff\xff\xff\xffc {0}:{1}".format(addr[0], addr[1])
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data = reply.encode("latin_1")
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# Tell server to send info reply
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self.sock.sendto(data, i.addr)
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# Use pregenerated address string
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packet += i.queryAddr
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packet += b'\0\0\0\0\0\0' # Fill last IP:Port with \0
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packet += b"\0\0\0\0\0\0" # Fill last IP:Port with \0
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self.sock.sendto(packet, addr)
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def fakeInfoForOldVersions(self, gamedir, addr):
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def sendFakeInfo(sock, warnmsg, gamedir, addr):
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baseReply = b"\xff\xff\xff\xffinfo\n\host\\" + warnmsg.encode('utf-8') + b"\map\\update\dm\\0\\team\\0\coop\\0\\numcl\\32\maxcl\\32\\gamedir\\" + gamedir.encode('latin-1') + b"\\"
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def _send_fake_info(sock, warnmsg, gamedir, addr):
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baseReply = (
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b"\xff\xff\xff\xffinfo\n\host\\"
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+ warnmsg.encode("utf-8")
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+ b"\map\\update\dm\\0\\team\\0\coop\\0\\numcl\\32\maxcl\\32\\gamedir\\"
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+ gamedir.encode("latin-1")
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+ b"\\"
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)
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sock.sendto(baseReply, addr)
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sendFakeInfo(self.sock, "This version is not", gamedir, addr)
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sendFakeInfo(self.sock, "supported anymore", gamedir, addr)
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sendFakeInfo(self.sock, "Please update Xash3DFWGS", gamedir, addr)
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sendFakeInfo(self.sock, "From GooglePlay or GitHub", gamedir, addr)
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sendFakeInfo(self.sock, "Эта версия", gamedir, addr)
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sendFakeInfo(self.sock, "устарела", gamedir, addr)
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sendFakeInfo(self.sock, "Обновите Xash3DFWGS c", gamedir, addr)
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sendFakeInfo(self.sock, "GooglePlay или GitHub", gamedir, addr)
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def removeServerFromList(self, data, addr):
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for i in self.serverList:
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if (i.addr == addr):
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logPrint("Remove Server: from {0}:{1}".format(addr[0], addr[1]))
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self.serverList.remove(i)
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def fake_info_for_old_versions(self, gamedir, addr):
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error_message = [
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"This version is not",
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"supported anymore",
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"Please update Xash3DFWGS",
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"From GooglePlay or GitHub",
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"Эта версия",
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"устарела",
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"Обновите Xash3DFWGS c",
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"GooglePlay или GitHub",
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]
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def sendChallengeToServer(self, data, addr):
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logPrint("Challenge Request: from {0}:{1}".format(addr[0], addr[1]))
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for string in error_message:
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_send_fake_info(self.sock, string, gamedir, addr)
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def remove_server_from_list(self, addr):
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for server in self.serverList:
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if server.addr == addr:
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logging.debug("Remove Server: from {0}:{1}".format(addr[0], addr[1]))
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self.serverList.remove(server)
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def send_challenge_to_server(self, addr):
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logging.debug("Challenge Request: from {0}:{1}".format(addr[0], addr[1]))
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# At first, remove old server- data from list
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# self.removeServerFromList(None, addr)
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count = 0
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for i in self.serverList:
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if ( i.addr[0] == addr[0] ):
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if( i.addr[1] == addr[1] ):
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if i.addr[0] == addr[0]:
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if i.addr[1] == addr[1]:
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self.serverList.remove(i)
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else:
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count += 1
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if( count > MAX_SERVERS_FOR_IP ):
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if count > MAX_SERVERS_FOR_IP:
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return
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# Generate a 32 bit challenge number
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challenge = random.randint(0, 2**32 - 1)
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# Add server to list
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@ -152,21 +171,23 @@ class PyMaster:
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# And send him a challenge
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packet = MasterProtocol.challengePacketHeader
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packet += pack('I', challenge)
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packet += pack("I", challenge)
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self.sock.sendto(packet, addr)
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def addServerToList(self, data, addr):
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logPrint("Add Server: from {0}:{1}".format(addr[0], addr[1]))
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def add_server_to_list(self, data, addr):
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logging.debug("Add Server: from {0}:{1}".format(addr[0], addr[1]))
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# Remove the header. Just for better parsing.
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serverInfo = data.strip('\x30\x0a\x5c')
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serverInfo = data.strip("\x30\x0a\x5c")
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# Find a server with same address
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for serverEntry in self.serverList:
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if( serverEntry.addr == addr ):
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if serverEntry.addr == addr:
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break
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serverEntry.setInfoString(serverInfo)
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def spawn_pymaster(verbose, ip, port):
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if verbose:
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logging.getLogger().addHandler(logging.StreamHandler())
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@ -176,28 +197,56 @@ def spawn_pymaster(verbose, ip, port):
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masterMain = PyMaster(ip, port)
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while True:
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try:
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masterMain.serverLoop()
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masterMain.server_loop()
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except Exception:
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logPrint(traceback.format_exc())
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pass
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logging.debug(traceback.format_exc())
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if __name__ == "__main__":
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parser = OptionParser()
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parser.add_option('-i', '--ip', action='store', dest='ip', default='0.0.0.0',
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help='ip to listen [default: %default]')
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parser.add_option('-p', '--port', action='store', dest='port', type='int', default=27010,
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help='port to listen [default: %default]')
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parser.add_option('-d', '--daemonize', action='store_true', dest='daemonize', default=False,
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help='run in background, argument is uid [default: %default]')
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parser.add_option('-q', '--quiet', action='store_false', dest='verbose', default=True,
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help='don\'t print to stdout [default: %default]')
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parser.add_option(
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"-i",
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"--ip",
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action="store",
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dest="ip",
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default="0.0.0.0",
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help="ip to listen [default: %default]",
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)
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parser.add_option(
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"-p",
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"--port",
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action="store",
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dest="port",
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type="int",
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default=27010,
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help="port to listen [default: %default]",
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)
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parser.add_option(
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"-d",
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"--daemonize",
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action="store_true",
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dest="daemonize",
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default=False,
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help="run in background, argument is uid [default: %default]",
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)
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parser.add_option(
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"-q",
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"--quiet",
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action="store_false",
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dest="verbose",
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default=True,
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help="don't print to stdout [default: %default]",
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)
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(options, args) = parser.parse_args()
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if options.daemonize != 0:
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from daemon import pidfile, DaemonContext
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from daemon import DaemonContext
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with DaemonContext(stdout=sys.stdout, stderr=sys.stderr, working_directory=os.getcwd()) as context:
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with DaemonContext(
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stdout=sys.stdout, stderr=sys.stderr, working_directory=os.getcwd()
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) as context:
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spawn_pymaster(options.verbose, options.ip, options.port)
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else:
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sys.exit(spawn_pymaster(options.verbose, options.ip, options.port))
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306
server_entry.py
306
server_entry.py
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@ -1,83 +1,249 @@
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from time import time
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from struct import pack
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#!/usr/bin/env python3
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import socket
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import random
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import sys
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import traceback
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import logging
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import os
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class ServerEntry:
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challenge2 = 0
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gamedir = ''
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protocol = 0
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players = 0
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maxplayers = 0
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bots = 0
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gamemap = ''
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version = '0'
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servtype = 'd'
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password = 0
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os = 'l'
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secure = 0
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lan = 0
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region = 255
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product = ''
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from optparse import OptionParser
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from struct import pack
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from time import time
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from server_entry import ServerEntry
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from protocol import MasterProtocol
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LOG_FILENAME = "pymaster.log"
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MAX_SERVERS_FOR_IP = 14
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class PyMaster:
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def __init__(self, ip, port):
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self.serverList = []
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self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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self.sock.bind((ip, port))
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logging.debug("Welcome to PyMaster!")
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logging.debug("I ask you again, are you my master? @-@")
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logging.debug("Running on %s:%d" % (ip, port))
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def server_loop(self):
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data, addr = self.sock.recvfrom(1024)
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data = data.decode("latin_1")
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match data[0]:
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case MasterProtocol.clientQuery:
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self.client_query(data, addr)
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case MasterProtocol.challengeRequest:
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self.send_challenge_to_server(data, addr)
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case MasterProtocol.addServer:
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self.add_server_to_list(data, addr)
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case MasterProtocol.removeServer:
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self.remove_server_from_list(data, addr)
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case other:
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logging.debug(
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"Unknown message: {0} from {1}:{2}".format(data, addr[0], addr[1])
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)
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def client_query(self, data, addr):
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region = data[1] # UNUSED
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data = data.strip("1" + region)
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try:
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query = data.split("\0")
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except ValueError:
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logging.debug(traceback.format_exc())
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return
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queryAddr = query[0] # UNUSED
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rawFilter = query[1]
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# Remove first \ character
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rawFilter = rawFilter.strip("\\")
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split = rawFilter.split("\\")
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# Use NoneType as undefined
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gamedir = "valve" # halflife, by default
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clver = None
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nat = 0
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def setInfoString(self, data):
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infostring = data.replace('\n', '').replace('\r', '').replace('\0', '')
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split = infostring.split('\\')
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for i in range(0, len(split), 2):
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try:
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key = split[i + 1]
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if( split[i] == 'challenge' ):
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self.challenge2 = int(key)
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elif( split[i] == 'gamedir' ):
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self.gamedir = key.lower() # keep gamedir lowercase
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elif( split[i] == 'protocol' ):
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self.protocol = int(key)
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elif( split[i] == 'players' ):
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self.players = int(key)
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elif( split[i] == 'max' ):
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self.maxplayers = int(key.split('.')[0])
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elif( split[i] == 'bots' ):
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self.bots = int(key)
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elif( split[i] == 'map' ):
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self.gamemap = key
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elif( split[i] == 'version' ):
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self.version = key
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elif( split[i] == 'type' ):
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self.servtype = key
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elif( split[i] == 'password' ):
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self.password = key
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elif( split[i] == 'os' ):
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self.os = key
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elif( split[i] == 'secure' ):
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self.secure = key
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elif( split[i] == 'lan' ):
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self.lan = key
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elif( split[i] == 'region' ):
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self.region = key
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elif( split[i] == 'product' ):
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self.product = key
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elif( split[i] == 'nat' ):
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self.nat = int(key)
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if split[i] == "gamedir":
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gamedir = key.lower() # keep gamedir in lowercase
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elif split[i] == "nat":
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nat = int(key)
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elif split[i] == "clver":
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clver = key
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else:
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logging.debug(
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"Unhandled info string entry: {0}/{1}. Infostring was: {2}".format(
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split[i], key, split
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)
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)
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except IndexError:
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pass
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self.check = self.challenge == self.challenge2
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||||
|
||||
def __init__(self, addr, challenge):
|
||||
# Address
|
||||
self.addr = addr
|
||||
if clver is None: # Probably an old vulnerable version
|
||||
self.fake_info_for_old_versions(gamedir, addr)
|
||||
return
|
||||
|
||||
# Shortcuts for generating query
|
||||
self.queryAddr = b''
|
||||
for i in addr[0].split('.'):
|
||||
self.queryAddr += pack('!B', int(i))
|
||||
self.queryAddr += pack('!H', int(addr[1]))
|
||||
packet = MasterProtocol.queryPacketHeader
|
||||
|
||||
# Random number that server must return
|
||||
self.challenge = challenge
|
||||
for i in self.serverList:
|
||||
if time() > i.die:
|
||||
self.serverList.remove(i)
|
||||
continue
|
||||
if not i.check:
|
||||
continue
|
||||
if nat != i.nat:
|
||||
continue
|
||||
if gamedir is not None and gamedir != i.gamedir:
|
||||
continue
|
||||
if nat:
|
||||
reply = "\xff\xff\xff\xffc {0}:{1}".format(addr[0], addr[1])
|
||||
data = reply.encode("latin_1")
|
||||
# Tell server to send info reply
|
||||
self.sock.sendto(data, i.addr)
|
||||
|
||||
# This server is not checked
|
||||
# So it will not get into queries
|
||||
self.check = False
|
||||
# Use pregenerated address string
|
||||
packet += i.queryAddr
|
||||
|
||||
# Remove server after this time.
|
||||
# This maybe not instant
|
||||
self.die = time() + 600.0
|
||||
packet += b"\0\0\0\0\0\0" # Fill last IP:Port with \0
|
||||
self.sock.sendto(packet, addr)
|
||||
|
||||
def _send_fake_info(sock, warnmsg, gamedir, addr):
|
||||
baseReply = (
|
||||
b"\xff\xff\xff\xffinfo\n\host\\"
|
||||
+ warnmsg.encode("utf-8")
|
||||
+ b"\map\\update\dm\\0\\team\\0\coop\\0\\numcl\\32\maxcl\\32\\gamedir\\"
|
||||
+ gamedir.encode("latin-1")
|
||||
+ b"\\"
|
||||
)
|
||||
sock.sendto(baseReply, addr)
|
||||
|
||||
def fake_info_for_old_versions(self, gamedir, addr):
|
||||
error_message = [
|
||||
"This version is not",
|
||||
"supported anymore",
|
||||
"Please update Xash3DFWGS",
|
||||
"From GooglePlay or GitHub",
|
||||
"Эта версия",
|
||||
"устарела",
|
||||
"Обновите Xash3DFWGS c",
|
||||
"GooglePlay или GitHub",
|
||||
]
|
||||
for string in error_message:
|
||||
_send_fake_info(self.sock, string, gamedir, addr)
|
||||
|
||||
def remove_server_from_list(self, addr):
|
||||
for server in self.serverList:
|
||||
if server.addr == addr:
|
||||
logging.debug("Remove Server: from {0}:{1}".format(addr[0], addr[1]))
|
||||
self.serverList.remove(server)
|
||||
|
||||
def send_challenge_to_server(self, addr):
|
||||
logging.debug("Challenge Request: from {0}:{1}".format(addr[0], addr[1]))
|
||||
# At first, remove old server- data from list
|
||||
# self.removeServerFromList(None, addr)
|
||||
count = 0
|
||||
|
||||
for i in self.serverList:
|
||||
if i.addr[0] == addr[0]:
|
||||
if i.addr[1] == addr[1]:
|
||||
self.serverList.remove(i)
|
||||
else:
|
||||
count += 1
|
||||
if count > MAX_SERVERS_FOR_IP:
|
||||
return
|
||||
|
||||
challenge = random.randint(0, 2**32 - 1)
|
||||
|
||||
# Add server to list
|
||||
self.serverList.append(ServerEntry(addr, challenge))
|
||||
|
||||
# And send him a challenge
|
||||
packet = MasterProtocol.challengePacketHeader
|
||||
packet += pack("I", challenge)
|
||||
self.sock.sendto(packet, addr)
|
||||
|
||||
def add_server_to_list(self, data, addr):
|
||||
logging.debug("Add Server: from {0}:{1}".format(addr[0], addr[1]))
|
||||
|
||||
# Remove the header. Just for better parsing.
|
||||
serverInfo = data.strip("\x30\x0a\x5c")
|
||||
|
||||
# Find a server with same address
|
||||
for serverEntry in self.serverList:
|
||||
if serverEntry.addr == addr:
|
||||
break
|
||||
serverEntry.setInfoString(serverInfo)
|
||||
|
||||
|
||||
def spawn_pymaster(verbose, ip, port):
|
||||
if verbose:
|
||||
logging.getLogger().addHandler(logging.StreamHandler())
|
||||
|
||||
logging.getLogger().addHandler(logging.FileHandler(LOG_FILENAME))
|
||||
logging.getLogger().setLevel(logging.DEBUG)
|
||||
masterMain = PyMaster(ip, port)
|
||||
|
||||
while True:
|
||||
try:
|
||||
masterMain.server_loop()
|
||||
except Exception:
|
||||
logging.debug(traceback.format_exc())
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
parser = OptionParser()
|
||||
parser.add_option(
|
||||
"-i",
|
||||
"--ip",
|
||||
action="store",
|
||||
dest="ip",
|
||||
default="0.0.0.0",
|
||||
help="ip to listen [default: %default]",
|
||||
)
|
||||
|
||||
parser.add_option(
|
||||
"-p",
|
||||
"--port",
|
||||
action="store",
|
||||
dest="port",
|
||||
type="int",
|
||||
default=27010,
|
||||
help="port to listen [default: %default]",
|
||||
)
|
||||
|
||||
parser.add_option(
|
||||
"-d",
|
||||
"--daemonize",
|
||||
action="store_true",
|
||||
dest="daemonize",
|
||||
default=False,
|
||||
help="run in background, argument is uid [default: %default]",
|
||||
)
|
||||
|
||||
parser.add_option(
|
||||
"-q",
|
||||
"--quiet",
|
||||
action="store_false",
|
||||
dest="verbose",
|
||||
default=True,
|
||||
help="don't print to stdout [default: %default]",
|
||||
)
|
||||
|
||||
(options, args) = parser.parse_args()
|
||||
|
||||
if options.daemonize != 0:
|
||||
from daemon import DaemonContext
|
||||
|
||||
with DaemonContext(
|
||||
stdout=sys.stdout, stderr=sys.stderr, working_directory=os.getcwd()
|
||||
) as context:
|
||||
spawn_pymaster(options.verbose, options.ip, options.port)
|
||||
else:
|
||||
sys.exit(spawn_pymaster(options.verbose, options.ip, options.port))
|
||||
|
|
|
|||
Loading…
Reference in a new issue