2009-11-13 01:59:41 +00:00
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import sys
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import re
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import socket
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import thread
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import asyncore
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import asynchat
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import Queue
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def decode(txt):
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for codec in ('utf-8', 'iso-8859-1', 'shift_jis', 'cp1252'):
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try:
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return txt.decode(codec)
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except UnicodeDecodeError:
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continue
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return txt.decode('utf-8', 'ignore')
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class crlf_tcp(asynchat.async_chat):
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"Handles tcp connections that consist of utf-8 lines ending with crlf"
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def __init__(self, host, port):
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asynchat.async_chat.__init__(self)
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self.set_terminator('\r\n')
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self.buffer = ""
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self.obuffer = ""
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self.oqueue = Queue.Queue() #where we stick things that need to be sent
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self.iqueue = Queue.Queue() #where we stick things that were received
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self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
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self.socket.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 0)
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self.host = host
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self.port = port
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def run(self):
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self.connect((self.host, self.port))
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asyncore.loop()
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def handle_connect(self):
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thread.start_new_thread(self.queue_read_loop, ())
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def queue_read_loop(self):
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while True:
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line = self.oqueue.get().splitlines()[0][:500]
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print ">>> %r" % line
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self.push(line.encode('utf-8', 'replace') + '\r\n')
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def collect_incoming_data(self, data):
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self.buffer += data
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def found_terminator(self):
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line = self.buffer
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self.iqueue.put(decode(line))
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self.buffer = ''
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irc_prefix_rem = re.compile(r'(.*?) (.*?) (.*)').match
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irc_noprefix_rem = re.compile(r'()(.*?) (.*)').match
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irc_netmask_rem = re.compile(r':?([^!@]*)!?([^@]*)@?(.*)').match
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irc_param_ref = re.compile(r'(?:^|(?<= ))(:.*|[^ ]+)').findall
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class irc(object):
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"handles the IRC protocol"
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#see the docs/ folder for more information on the protocol
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2009-11-18 00:27:55 +00:00
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def __init__(self, server, nick, port=6667, channels=[]):
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2009-11-18 00:19:26 +00:00
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self.server = server
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self.conn = crlf_tcp(server, port)
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2009-11-18 00:27:55 +00:00
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self.channels = channels
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2009-11-13 01:59:41 +00:00
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thread.start_new_thread(self.conn.run, ())
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self.out = Queue.Queue() #responses from the server are placed here
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# format: [rawline, prefix, command, params,
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# nick, user, host, paramlist, msg]
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2009-11-18 00:19:26 +00:00
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self.nick = nick
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self.set_nick(nick)
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2009-11-13 01:59:41 +00:00
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self.cmd("USER", ["skybot v0.01", "0", "bot"])
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thread.start_new_thread(self.parse_loop, ())
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def parse_loop(self):
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while True:
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msg = self.conn.iqueue.get()
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if msg.startswith(":"): #has a prefix
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prefix, command, params = irc_prefix_rem(msg).groups()
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else:
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prefix, command, params = irc_noprefix_rem(msg).groups()
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nick, user, host = irc_netmask_rem(prefix).groups()
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paramlist = irc_param_ref(params)
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lastparam = ""
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if paramlist and paramlist[-1].startswith(':'):
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lastparam = paramlist[-1][1:]
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self.out.put([msg, prefix, command, params, nick, user, host,
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paramlist, lastparam])
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if command == "PING":
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self.cmd("PONG", [params])
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2009-11-18 00:19:26 +00:00
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def set_nick(self, nick):
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2009-11-13 01:59:41 +00:00
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self.cmd("NICK", [nick])
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def join(self, channel):
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self.cmd("JOIN", [":"+channel])
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def msg(self, target, text):
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self.cmd("PRIVMSG", [target, ":"+text])
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def cmd(self, command, params=None):
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if params:
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self.send(command+' '+' '.join(params))
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else:
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self.send(command)
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def send(self, str):
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self.conn.oqueue.put(str)
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