class IRCModule:
def __init__(self, servers, channels, name, password = ""):
self.s = {}#IRC socket
self.commandHandler = CommandHandler(self)
self.user = name[0]#user
self.nick = name[1]#nick
self.readBuffer = ""#leftover from last block for partial IRC messages
self.sendBuffer = b""
self.serverList = servers
self.channels = channels
self.users = {}
self.password = password
def connect(self, host=None):
self._connect(host if host else servers[0])
def reconnect(self, host = None):
if host == None:
for server in self.serverList:
if self.reconnect(server):
return True
logger.warning("Reconnect failed")
return False
else:
logger.info("Reconnecting to",host)
return self._connect(host)
def _connect(self, host):
try:
self.s = socket.create_connection(host, SM__CONNECT_TIMEOUT)
except socket.gaierror as err:
logger.warning("Failed to resolve hostname:",host)
return False
except socket.timeout as err:
logger.warning("Timed out connecting to IRC:",host)
return False
except OSError as err:
logger.debug(err)
return False
self.s.setblocking(0)
def _quitScrap(self, *args):
pass
self.commandHandler.add("QUIT", _quitScrap)
def _nickScrap(self, *args):
pass
self.commandHandler.add("NICK", _nickScrap)
def _partScrap(self, *args):
pass
self.commandHandler.add("PART", _partScrap)
def _joinScrap(self, *args):
pass
self.commandHandler.add("JOIN", _joinScrap)
def _kickScrap(self, *args):
pass
self.commandHandler.add("KICK", _kickScrap)
def _onPing(self, prefix, server1, server2 = ""):
self.sendCommand("PONG :"+server1)
self.commandHandler.add("PING", _onPing)
def _joinScrap(self, *args):
self.joinChannels()
self.commandHandler.removeTagged("joinChannels")
self.commandHandler.addTagged("001", _joinScrap, "joinChannels")
if False:#add ghosting support later
def _ghostScrap(self, *args):
pass
self.commandHandler.addTagged("433", _ghostScrap, "joinChannels")
if self.password != "":
self.sendCommand("PASS "+self.password)
self.sendCommand("NICK "+self.nick)
self.sendCommand("USER "+self.user+" 0 * :me")
return True
def disconnect(self, reason = "Because reasons."):
self.commandHandler.reset()
self.sendCommand("QUIT :"+reason)
self.s.shutdown(1)#change to 3?
self.s.close()
self.s = {}
def prepareNameQuery(self, channel):
self.users[channel.upper()] = []
handlerTag = "join "+channel
def _getNames(self, prefix, me, equals, _channel, names):
if channel.upper() == _channel.upper():
self.users[channel.upper()].append(names.split())
def _endNames(self, *args):
self.commandHandler.removeTagged(handlerTag)
self.commandHandler.addTagged("343", _getNames, handlerTag)
self.commandHandler.addTagged("366", _endNames, handlerTag)
def joinChannels(self):
for channel in self.channels:
self.prepareNameQuery(channel)
self.sendCommand("JOIN "+channel)
def sendCommand(self, command):
if not self.s:
logger.debug("tried to send command:",command,"to disconnected bot")
return False
[], writeable, [] = select.select([],[self.s],[],0)
if len(writeable) == 0:
logger.warning("sock couldn't be opened for writing")
logger.debug("message lost: "+command)
else:
for sock in writeable:#This would need to be fixed for multiple IRC clients
toSend = (command+"\r\n").encode("UTF-8","replace")
if len(toSend) != self.s.send(toSend):
logger.debug("Long message implicitly trimmed")
def sendMessage(self, channel, message):
#print(len(message),deUni(message))
while len(message) > 0:
chunkSize = min(400,len(message));
self.sendCommand("PRIVMSG "+channel+" :"+message[:chunkSize])
message = message[chunkSize:]
#returns false on bad socket
def recvCommand(self):
if not self.s:
logger.debug("tried to poll disconnected bot")
return False
readable,[],errors = select.select([self.s],[],[self.s],0)
if len(errors) != 0:
logger.debug("socket error")
self.reconnect()
if len(readable) != 0:
try:
data = self.s.recv(SM__IRC_BUFFER_SIZE).decode("UTF-8","replace")
except:
return False
if len(data) == 0:
return False
self.readBuffer += data
commands = self.readBuffer.split("\r\n")
for cmd in commands[:-1]:
self.parseCommand(cmd)
self.readBuffer = commands[-1]
return True
def parseCommand(self, command):
follower = command.find(" :",1)
if follower != -1:
splitCommand = command[0:follower].split(" ")
splitCommand.append(command[follower+2:])
else:
splitCommand = command.split(" ")
prefix = ""
if splitCommand[0][0] != ":":
splitCommand.insert(0,"")
else:
splitCommand[0] = splitCommand[0][1:]
key = splitCommand.pop(1)
if not self.commandHandler.run(key.upper(), *tuple(splitCommand)):
if key in numerictoname:
key = numerictoname[key]
