/
ar.py
executable file
·142 lines (117 loc) · 5.52 KB
/
ar.py
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#!/usr/bin/python
####
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# Created by Lincoln Quirk in 2008
# Based off of Jason Ureta's Warcraft III AutoRefresh (GPL)
####
####
# USAGE:
# 1. Start hosting a Battle.net game in Warcraft 3
# 2. Execute ./ar.py
# 3. Relax while your game fills up!
#
# When you start the game, this program will exit automatically.
####
REFRESH_SLOTS = 12
GAME_ADDR = ('localhost', 6112)
RF_NAME = '|rAutoRefresh' # |r means 'make this bright white'
import socket
import array
import time
def mkPacket(name, gameId):
'''Returns the 'AutoRefresh joined...' packet as an array of unsigned bytes
name: the username who appears to join, including any wc3 color codes
gameId: the id of the game we are joining. (hostCounter)'''
# Apparently, we get no more than 15 characters, including any color codes
fullName = str(name)[0:15]
packet = array.array('B', [
0xF7, 0x1E, 0xff, 0x00, gameId, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE4, 0x17, 0x00, 0x00, 0x00, 0x00
])
packet.fromstring(fullName)
packet.fromlist([
0x00, 0x01, 0x00, 0x02, 0x00, 0x17, 0xE0, 0x7F, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
])
# overwrite that 0xff in the 3rd slot with the actual packet length
packet[2] = len(packet)
return packet
def startRefresh():
'''Starts refreshing the game every 10 seconds.
Returns True when the host starts the game.
Raises a socket exception if we can't find any wc3 at the correct address or it times out. '''
# Tricky flow control in this method; I use exceptions to manage it.
class GameFull(Exception): pass
class AlreadyStarted(Exception): pass
class NoSuchGame(Exception): pass
# We start at 0, guessing gameIds one by one, until we get the correct one.
gameId = 0
try:
# This loop runs forever, refreshing all slots, until we see AlreadyStarted.
while True:
slots = []
try:
try:
# Refresh each slot. The 'slots' array holds the open sockets.
for i in range(0, REFRESH_SLOTS):
print i
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect(GAME_ADDR)
slots.append(sock)
# Construct and send packet.
wfile = sock.makefile('wb', 0)
wfile.write(mkPacket(RF_NAME, gameId).tostring())
rfile = sock.makefile('rb', -1)
# We never need more than a few bytes from the response,
# so just read 8 and convert it to a byte array.
responsePacket = array.array('B')
responsePacket.fromstring(rfile.read(8))
if responsePacket[1] == 5 and responsePacket[2] == 8:
# These are all "you failed to join because..."
if responsePacket[4] == 9:
print "full"
raise GameFull()
elif responsePacket[4] == 10:
print "already started"
raise AlreadyStarted()
elif responsePacket[4] == 7:
print "wrong gameId"
raise NoSuchGame()
else:
print "Failed to join - reason %d unknown" % responsePacket[4]
elif responsePacket[1] == 4:
# I think we succeeded at joining! (Let's hope; I have no idea what '4' actually means)
print "ok"
else:
print "Unknown response: %s" % str(responsePacket)
except GameFull:
# When the game's full just wait 10 seconds and refresh again
pass
except NoSuchGame:
# We guessed the wrong gameId, so try the next one.
gameId = (gameId + 1) % 256
# Don't wait the 10 seconds in this case - go ahead immediately
continue
finally:
# Always close your connections, dear! (That's what your mom said)
# (Probably strictly not necessary, since 'slots' will be reset to []
# at the beginning of the next refresh run)
for (i, sock) in enumerate(slots):
print 'close %d' % i
sock.close()
# Whew... take a short nap.
time.sleep(10)
except AlreadyStarted: # This is the outermost Try
return True
if __name__ == '__main__':
startRefresh()