285 lines
9.5 KiB
Python
Executable file
285 lines
9.5 KiB
Python
Executable file
import re
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import socket
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import time
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import thread
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import threading
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import Queue
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from ssl import wrap_socket, CERT_NONE, CERT_REQUIRED, SSLError
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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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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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def censor(text):
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return text
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class RecieveThread(threading.Thread):
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"""recieves messages from IRC and puts them in the input_queue"""
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def __init__(self, socket, input_queue, timeout):
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self.input_buffer = ""
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self.input_queue = input_queue
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self.socket = socket
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self.timeout = timeout
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threading.Thread.__init__(self)
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def recv_from_socket(self, nbytes):
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return self.socket.recv(nbytes)
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def handle_receive_exception(self, error, last_timestamp):
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print error
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if time.time() - last_timestamp > self.timeout:
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self.input_queue.put(StopIteration)
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self.socket.close()
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return True
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return False
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def get_timeout_exception_type(self):
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return socket.timeout
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def run(self):
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last_timestamp = time.time()
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while True:
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try:
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data = self.recv_from_socket(4096)
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self.input_buffer += data
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if data:
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last_timestamp = time.time()
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else:
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if time.time() - last_timestamp > self.timeout:
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self.input_queue.put(StopIteration)
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self.socket.close()
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return
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time.sleep(1)
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except (self.get_timeout_exception_type(), socket.error) as e:
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if self.handle_receive_exception(e, last_timestamp):
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return
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continue
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while '\r\n' in self.input_buffer:
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line, self.input_buffer = self.input_buffer.split('\r\n', 1)
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self.input_queue.put(decode(line))
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class SSLRecieveThread(RecieveThread):
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def __init__(self, socket, input_queue, timeout):
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RecieveThread.Thread.__init__(self, socket, input_queue, timeout)
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def recv_from_socket(self, nbytes):
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return self.socket.read(nbytes)
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def get_timeout_exception_type(self):
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return SSLError
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def handle_receive_exception(self, error, last_timestamp):
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# this is terrible
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if not "timed out" in error.args[0]:
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raise
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return RecieveThread.handle_receive_exception(self, error, last_timestamp)
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class SendThread(threading.Thread):
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"""sends messages from output_queue to IRC"""
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def __init__(self, socket, conn_name, output_queue):
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self.output_buffer = ""
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self.output_queue = output_queue
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self.conn_name = conn_name
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self.socket = socket
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self.shutdown = False
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threading.Thread.__init__(self)
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def run(self):
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while not self.shutdown:
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line = self.output_queue.get().splitlines()[0][:500]
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print u"[{}]: {}".format(self.conn_name, line)
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self.output_buffer += line.encode('utf-8', 'replace') + '\r\n'
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while self.output_buffer:
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sent = self.socket.send(self.output_buffer)
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self.output_buffer = self.output_buffer[sent:]
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class ParseThread(threading.Thread):
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"""parses messages from input_queue and puts them in parsed_queue"""
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def __init__(self, input_queue, output_queue, parsed_queue):
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self.input_queue = input_queue # lines that were received
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self.output_queue = output_queue # lines to be sent out
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self.parsed_queue = parsed_queue # lines that have been parsed
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threading.Thread.__init__(self)
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def run(self):
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while True:
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# get a message from the input queue
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msg = self.input_queue.get()
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#if msg == StopIteration:
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# self.irc.connect()
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# continue
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# parse the message
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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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mask = nick + "!" + user + "@" + host
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paramlist = irc_param_ref(params)
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lastparam = ""
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if paramlist:
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if paramlist[-1].startswith(':'):
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paramlist[-1] = paramlist[-1][1:]
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lastparam = paramlist[-1]
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# put the parsed message in the response queue
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self.parsed_queue.put([msg, prefix, command, params, nick, user, host,
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mask, paramlist, lastparam])
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# if the server pings us, pong them back
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if command == "PING":
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str = "PONG :" + paramlist[0]
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self.output_queue.put(str)
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class Connection(object):
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"""handles an IRC connection"""
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def __init__(self, name, host, port, input_queue, output_queue):
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self.output_queue = output_queue # lines to be sent out
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self.input_queue = input_queue # lines that were received
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self.socket = self.create_socket()
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self.conn_name = name
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self.host = host
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self.port = port
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self.timeout = 300
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def create_socket(self):
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return socket.socket(socket.AF_INET, socket.TCP_NODELAY)
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def connect(self):
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self.socket.connect((self.host, self.port))
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self.recieve_thread = RecieveThread(self.socket, self.input_queue, self.timeout)
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self.recieve_thread.daemon = True
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self.recieve_thread.start()
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self.send_thread = SendThread(self.socket, self.conn_name, self.output_queue)
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self.send_thread.daemon = True
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self.send_thread.start()
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def stop(self):
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self.send_thread.shutdown = True
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time.sleep(.1)
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self.socket.close()
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class SSLConnection(Connection):
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"""handles a SSL IRC connection"""
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def __init__(self, name, host, port, input_queue, output_queue, ignore_cert_errors):
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self.ignore_cert_errors = ignore_cert_errors
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Connection.__init__(self, name, host, port, input_queue, output_queue)
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def create_socket(self):
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return wrap_socket(Connection.create_socket(self), server_side=False,
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cert_reqs=CERT_NONE if self.ignore_cert_errors else
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CERT_REQUIRED)
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class IRC(object):
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"""handles the IRC protocol"""
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def __init__(self, name, server, nick, port=6667, channels=[], conf={}):
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self.name = name
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self.channels = channels
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self.conf = conf
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self.server = server
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self.port = port
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self.nick = nick
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self.vars = {}
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self.parsed_queue = 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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self.parsed_queue = Queue.Queue()
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self.input_queue = Queue.Queue()
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self.output_queue = Queue.Queue()
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self.connection = Connection(self.name, self.server, self.port,
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self.input_queue, self.output_queue)
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self.connection.connect()
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self.set_pass(self.conf.get('server_password'))
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self.set_nick(self.nick)
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self.cmd("USER",
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[self.conf.get('user', 'cloudbot'), "3", "*", self.conf.get('realname',
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'CloudBot - http://git.io/cloudbot')])
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self.parse_thread = ParseThread(self.input_queue, self.output_queue,
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self.parsed_queue)
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self.parse_thread.daemon = True
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self.parse_thread.start()
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def stop(self):
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self.connection.stop()
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def set_pass(self, password):
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if password:
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self.cmd("PASS", [password])
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def set_nick(self, nick):
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self.cmd("NICK", [nick])
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def join(self, channel):
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""" makes the bot join a channel """
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self.send("JOIN {}".format(channel))
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if channel not in self.channels:
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self.channels.append(channel)
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def part(self, channel):
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""" makes the bot leave a channel """
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self.cmd("PART", [channel])
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if channel in self.channels:
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self.channels.remove(channel)
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def msg(self, target, text):
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""" makes the bot send a PRIVMSG to a target """
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self.cmd("PRIVMSG", [target, text])
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def ctcp(self, target, ctcp_type, text):
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""" makes the bot send a PRIVMSG CTCP to a target """
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out = u"\x01{} {}\x01".format(ctcp_type, text)
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self.cmd("PRIVMSG", [target, out])
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def cmd(self, command, params=None):
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if params:
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params[-1] = ':' + params[-1]
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self.send(command + ' ' + ' '.join(map(censor, 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.output_queue.put(str)
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class SSLIRC(IRC):
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def __init__(self, name, server, nick, port=6667, channels=[], conf={},
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ignore_certificate_errors=True):
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self.ignore_cert_errors = ignore_certificate_errors
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IRC.__init__(self, name, server, nick, port, channels, conf)
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def create_connection(self):
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return crlf_ssl_tcp(self.name, self.server, self.port, self.ignore_cert_errors)
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