Get status of master; working challenge and add server;

This commit is contained in:
a1batross 2016-01-21 02:24:37 +03:00
parent d3bcda6268
commit 6e4e37259b
4 changed files with 185 additions and 53 deletions

20
protocol.py Normal file
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@ -0,0 +1,20 @@
class MasterProtocol:
# Client To Master
clientQuery = '1'
# Server To Master
challengeRequest = 'q'
addServer = '0'
removeServer = 'b'
# Master To Client
queryPacketHeader = b'\xff\xff\xff\xff\x66\x0a'
# Master To Server
challengePacketHeader = b'\xff\xff\xff\xff\x73\x0a'
#Debug
statusRequest = 's'

151
pymaster.py Normal file → Executable file
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@ -1,59 +1,81 @@
# Basic networking
import socket
# Challenge generator
import random
import struct
# System important... things
import sys
import traceback
import logging
# Network packet creating
from struct import pack
# Server time control
from time import time
# ServerEntry class module
from server_entry import ServerEntry
from util import getAttrOrNone
# Protocol class
from protocol import MasterProtocol
UDP_IP = "127.0.0.1"
UDP_PORT = 27010
sock = []
LOG_FILENAME = 'pymaster.log'
logging.basicConfig( filename = LOG_FILENAME, level = logging.DEBUG )
def logPrint( msg ):
if DEBUG:
print( msg )
logging.debug( msg )
class PyMaster:
self.serverList = []
self.sock = []
serverList = []
sock = socket.socket( socket.AF_INET, socket.SOCK_DGRAM )
def __init__(self):
sock = socket.socket( socket.AF_INET, socket.SOCK_DGRAM )
sock.bind( (UDP_IP, UDP_PORT) )
self.sock.bind( (UDP_IP, UDP_PORT) )
logprint("Welcome to PyMaster!")
logprint("I ask you again, are you my master?")
logprint("Running on %s:%i" % UDP_IP, UDP_PORT)
logPrint("Welcome to PyMaster!")
logPrint("I ask you again, are you my master?")
logPrint("Running on {0}:{1}".format( UDP_IP, UDP_PORT))
def serverLoop(self)
data, addr = sock.recvfrom(1024)4
logprint("received message: %s" % data)
def serverLoop(self):
data, addr = self.sock.recvfrom(1024)
data = data.decode('latin_1')
if data[0] == '1':
if( data[0] == MasterProtocol.clientQuery ):
logPrint("Client Query: from {0}:{1}".format(addr[0], addr[1]))
self.clientQuery(data, addr);
elif data[0] == 'q'
elif( data[0] == MasterProtocol.challengeRequest ):
logPrint("Challenge Request: from {0}:{1}".format(addr[0], addr[1]))
self.sendChallengeToServer(data, addr);
elif data[0] == '0'
elif( data[0] == MasterProtocol.addServer ):
logPrint("Add Server: from {0}:{1}".format(addr[0], addr[1]))
self.addServerToList(data, addr);
elif data[0] == 'b'
elif( data[0] == MasterProtocol.removeServer ):
logPrint("Remove Server: from {0}:{1}".format(addr[0], addr[1]))
self.removeServerFromList(data, addr);
else
logprint("Unknown message: %s from %s" % data, addr)
elif( data[0] == MasterProtocol.statusRequest ):
logPrint("Status Request: from {0}:{1}".format(addr[0], addr[1]))
self.sendStatus(data, addr);
else:
logPrint("Unknown message: {0} from {1}:{2}".format(data, addr[0], addr[1]))
def clientQuery(self, data, addr):
data = data.strip('1')
data = data.strip('1\xff')
region = data[0]
queryAddr, rawFilter = data.split('\0')
try:
queryAddr, rawFilter = data.split('\0')
except ValueError:
return
rawFilter = rawFilter.strip('\\')
split = rawFilter.split('\\')
rawFilter = rawFilter.split('\\')
queryFilter = namedtuple('QueryFilter', rawFilter[0::2])._make(rawFilter[1::2])
#nor = getAttrOrNone(queryFilter, 'nor')
#nand = getAttrOrNone(queryFilter, 'nand')
#dedicated = getAttrOrNone(queryFilter, 'dedicated')
#gamedir = getAttrOrNone(queryFilter, 'gamedir')
#gamemap = getAttrOrNone(queryFilter, 'map')
#linux = getAttrOrNone(queryFilter, 'linux')
#empty = getAttrOrNone(queryFilter, 'empty')
@ -64,21 +86,51 @@ class PyMaster:
#name = getAttrOrNone(queryFilter, 'name')
#version = getAttrOrNone(queryFilter, 'version_match')
#gameaddr = getAttrOrNone(queryFilter, 'gameaddr')
secure = getAttrOrNone(queryFilter, 'secure')
#secure = getAttrOrNone(queryFilter, 'secure')
# Use NoneType as undefined
gamedir = None
gamemap = None
for i in range( 0, len(split), 2 ):
try:
key = split[i + 1]
if( split[i] == 'gamedir' ):
gamedir = key
elif( split[i] == 'map' ):
gamemap = key
else:
logPrint('Unhandled info string entry: {0}/{1}'.format(split[i], key))
except IndexError:
pass
packet = '\xff\xff\xff\xff\x66\x0a'
packet = MasterProtocol.queryPacketHeader
for i in self.serverList:
if( !i.check ):
if( time() > i.die ):
self.serverList.remove(i)
continue
if( not i.check ):
continue
if( gamedir != None ):
if( gamedir != i.serverInfo.gamedir):
if( gamedir != i.gamedir):
continue
# Use pregenerated address string
packet += self.queryAddr
packet += i.queryAddr
self.sock.sendto(packet, addr)
def removeServerFromList(self, data, addr):
for i in self.serverList:
if (i.addr == addr):
self.serverList.remove(i)
def sendChallengeToServer(self, data, addr):
# At first, remove old server data from list
self.removeServerFromList(None, addr)
# Generate a 32 bit challenge number
challenge = random.randint(0, 2**32-1)
@ -86,23 +138,30 @@ class PyMaster:
self.serverList.append(ServerEntry(addr, challenge))
# And send him a challenge
packet = '\xff\xff\xff\xff\x73\x0a'
packet += struct.pack('I', challenge)
socket.sendto(packet, addr)
packet = MasterProtocol.challengePacketHeader
packet += pack('I', challenge)
self.sock.sendto(packet, addr)
def addServerToList(self, data, addr):
# Remove the header
# Remove the header. Just for better parsing.
serverInfo = data.strip('\x30\x0a\x5c')
# Find a server with
# Find a server with same address
for serverEntry in self.serverList:
if (serverEntry.addr == addr):
serverEntry.setInfoString(serverInfo)
if( serverEntry.addr == addr ):
serverEntry.setInfoString( serverInfo )
def removeServerFromList(self, data, addr):
def sendStatus( self, data, addr ):
count = len(self.serverList)
packet = b'Server\t\t\tGame\tMap\tPlayers\tVersion\tChallenge\tCheck\n'
for i in self.serverList:
if (i.addr == addr):
self.serverList.remove(i)
line = '{0}:{1}\t{2}\t{3}\t{4}/{5}\t{6}\n'.format(i.addr[0], i.addr[1],
i.gamedir, i.gamemap, i.players,
i.maxplayers, i.version, i.challenge, i.check)
packet += line.encode('latin_1')
self.sock.sendto(packet, addr)
def main( argv = None ):
if argv is None:
@ -110,7 +169,11 @@ def main( argv = None ):
masterMain = PyMaster()
while True:
masterMain.serverLoop()
try:
masterMain.serverLoop()
except Exception:
logging.exception()
pass
if __name__ == "__main__":
sys.exit( main( ) )

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@ -1,22 +1,73 @@
from collections import namedtuple
from time import time
from struct import pack
class ServerEntry:
challenge2 = 0
gamedir = ''
protocol = 0
players = 0
maxplayers = 0
bots = 0
gamemap = ''
version = '0'
servtype = 'd'
password = 0
os = 'l'
secure = 0
lan = 0
region = 255
product = ''
def setInfoString(self, data):
infostring = data.translate(None, '\n\r\0')
infostring = data.replace('\n', '').replace('\r', '').replace('\0', '')
split = infostring.split('\\')
self.serverInfo = namedtuple('ServerInfo', split[0::2])._make(split[1::2])
self.check = int(self.serverInfo.challenge) == self.challenge
logPrint( split )
for i in range(0, len(split), 2):
try:
key = split[i + 1]
if( split[i] == 'challenge' ):
self.challenge2 = int(key)
elif( split[i] == 'gamedir' ):
self.gamedir = key
elif( split[i] == 'protocol' ):
self.protocol = int(key)
elif( split[i] == 'players' ):
self.players = int(key)
elif( split[i] == 'max' ):
self.maxplayers = int(key)
elif( split[i] == 'bots' ):
self.bots = int(key)
elif( split[i] == 'map' ):
self.gamemap = key
elif( split[i] == 'version' ):
self.version = key
elif( split[i] == 'type' ):
self.servtype = key
elif( split[i] == 'password' ):
self.password = key
elif( split[i] == 'os' ):
self.os = key
elif( split[i] == 'secure' ):
self.secure = key
elif( split[i] == 'lan' ):
self.lan = key
elif( split[i] == 'region' ):
self.region = key
elif( split[i] == 'product' ):
self.product = key
except IndexError:
pass
self.check = self.challenge == self.challenge2
def __init__(self, addr, challenge):
# Address
self.addr = addr
# Shortcuts for generating query
self.queryAddr = ""
self.queryAddr = b''
for i in addr[0].split('.'):
self.queryAddr += struct.pack('B', int(i))
self.queryAddr += struct.pack('H', addr[1])
self.queryAddr += pack('B', int(i))
self.queryAddr += pack('H', addr[1])
# Random number that server must return
self.challenge = challenge

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@ -1,2 +0,0 @@
def getAttrOrNone(obj, prop):
return getattr(obj, prop, None)