Python:HL2Rcon

import string, re, time, socket, xdrlib
 
def PackInt(Num):
    packer = xdrlib.Packer()
    packer.pack_int(Num)
    return packer.get_buffer()[::-1]
 
def UnPackInt(Num):
    packer = xdrlib.Unpacker(Num[::-1])
    return packer.unpack_int()
 
class CHL2Rcon:
        """This will connect to a Half Life 2 Server and send/recieve RCON commands"""
        def __init__(self,server,port,password):
            self.srv_addr = server
            self.srv_port = port
            self.srv_pass = password
            self.RCON_AUTH = 3
            self.RCON_EXEC = 2
            self.RCON_AUTH_RESP = 2
            self.RCON_EXEC_RESP = 0
            self.req_id = 1
            self._s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
            self._s.connect((server,port))
            self.Auth()
 
        def Auth(self):
            self.SendPacket(self.RCON_AUTH,self.srv_pass)
            # First resposne is garbage
            self.ReadPacket()
            # Second packet contains the result
            self.ReadPacket()
 
        def Execute(self,Command):
            self.SendPacket(self.RCON_EXEC,Command)
            pck = self.ReadPacket()
            buf = pck[2][0]
            try:
                self._s.settimeout(0.5)
                str = self._s.recv(1024)
                while len(str) > 0:
                    buf = buf + str
                    str = self._s.recv(1024)
            except:
                pass
 
            return buf
 
        def SendPacket(self, Command, String1, String2=''):
            self.req_id += 1
            packer = xdrlib.Packer()
            buf = String1 + '\x00' + String2 + '\x00'
            buf = PackInt(Command) + buf
            buf = PackInt(self.req_id) + buf
            buf = PackInt(len(buf)) + buf
            self._s.send(buf)
 
        def ReadPacket(self):
            # retrieve the packet length
            packetLen = UnPackInt(self._s.recv(4))
            # retrieve the request ID
            req_id = UnPackInt(self._s.recv(4))
            # retrieve the command response
            cmd = UnPackInt(self._s.recv(4))
            # retrieve the response
            buf = self._s.recv(packetLen)
            return (cmd,req_id,buf.split("\x00"))