291 lines
10 KiB
Python
291 lines
10 KiB
Python
# -*- coding: utf-8 -*-
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# Nemubot is a modulable IRC bot, built around XML configuration files.
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# Copyright (C) 2012 Mercier Pierre-Olivier
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import socket
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import sys
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import threading
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import traceback
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import channel
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import DCC
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import message
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import xmlparser
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class Server(threading.Thread):
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def __init__(self, node, nick, owner, realname, socket = None):
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self.stop = False
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self.stopping = threading.Event()
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self.nick = nick
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self.owner = owner
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self.realname = realname
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self.s = socket
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self.connected = self.s is not None
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self.node = node
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self.listen_nick = True
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self.dcc_clients = dict()
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self.channels = dict()
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for chn in node.getNodes("channel"):
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chan = channel.Channel(chn, self)
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self.channels[chan.name] = chan
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threading.Thread.__init__(self)
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def isDCC(self, to=None):
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return to is not None and to in self.dcc_clients
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@property
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def host(self):
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if self.node.hasAttribute("server"):
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return self.node["server"]
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else:
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return "localhost"
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@property
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def port(self):
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if self.node.hasAttribute("port"):
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return self.node.getInt("port")
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else:
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return "6667"
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@property
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def password(self):
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if self.node.hasAttribute("password"):
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return self.node["password"]
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else:
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return None
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@property
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def partner(self):
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if self.node.hasAttribute("partner"):
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return self.node["partner"]
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else:
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return None
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@property
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def ip(self):
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"""Convert common IP representation to little-endian integer representation"""
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sum = 0
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if self.node.hasAttribute("ip"):
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for b in self.node["ip"].split("."):
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sum = 256 * sum + int(b)
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else:
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#TODO: find the external IP
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pass
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return sum
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def toIP(self, input):
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"""Convert little-endian int to IPv4 adress"""
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ip = ""
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for i in range(0,4):
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mod = input % 256
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ip = "%d.%s" % (mod, ip)
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input = (input - mod) / 256
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return ip[:len(ip) - 1]
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@property
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def autoconnect(self):
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if self.node.hasAttribute("autoconnect"):
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value = self.node["autoconnect"].lower()
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return value != "no" and value != "off" and value != "false"
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else:
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return False
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@property
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def id(self):
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return self.host + ":" + str(self.port)
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def send_ctcp(self, to, msg, cmd = "NOTICE", endl = "\r\n"):
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"""Send a message as CTCP response"""
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if msg is not None and to is not None:
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for line in msg.split("\n"):
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if line != "":
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self.s.send (("%s %s :\x01%s\x01%s" % (cmd, to.split("!")[0], line, endl)).encode ())
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def send_dcc(self, msg, to):
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"""Send a message through DCC connection"""
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if msg is not None and to is not None:
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realname = to.split("!")[1]
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if realname not in self.dcc_clients.keys():
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d = dcc.DCC(self, to)
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self.dcc_clients[realname] = d
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self.dcc_clients[realname].send_dcc(msg)
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def send_msg_final(self, channel, msg, cmd = "PRIVMSG", endl = "\r\n"):
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"""Send a message without checks"""
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if channel == self.nick:
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exc_type, exc_value, exc_traceback = sys.exc_info()
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traceback.print_exception(exc_type, exc_value, exc_traceback)
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print ("\033[1;35mWarning:\033[0m Nemubot talks to himself: %s" % msg)
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if msg is not None and channel is not None:
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for line in msg.split("\n"):
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if line != "":
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if len(line) < 442:
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self.s.send (("%s %s :%s%s" % (cmd, channel, line, endl)).encode ())
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else:
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self.s.send (("%s %s :%s%s" % (cmd, channel, line[0:442]+"...", endl)).encode ())
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def send_msg_prtn(self, msg):
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"""Send a message to partner bot"""
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self.send_msg_final(self.partner, msg)
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def send_msg_usr(self, user, msg):
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"""Send a message to a user instead of a channel"""
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if user is not None and user[0] != "#":
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realname = user.split("!")[1]
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if realname in self.dcc_clients:
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self.send_dcc(msg, user)
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else:
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self.send_msg_final(user.split('!')[0], msg)
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def send_msg(self, channel, msg, cmd = "PRIVMSG", endl = "\r\n"):
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"""Send a message to a channel"""
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if self.accepted_channel(channel):
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self.send_msg_final(channel, msg, cmd, endl)
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def send_msg_verified(self, sender, channel, msg, cmd = "PRIVMSG", endl = "\r\n"):
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"""Send a message to a channel, only if the source user is on this channel too"""
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if self.accepted_channel(channel, sender):
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self.send_msg_final(channel, msg, cmd, endl)
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def send_global(self, msg, cmd = "PRIVMSG", endl = "\r\n"):
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"""Send a message to all channels on this server"""
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for channel in self.channels.keys():
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self.send_msg(channel, msg, cmd, endl)
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def accepted_channel(self, chan, sender = None):
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"""Return True if the channel (or the user) is authorized"""
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if self.listen_nick:
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return (chan in self.channels and (sender is None or sender in self.channels[chan].people)) or chan == self.nick
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else:
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return chan in self.channels and (sender is None or sender in self.channels[chan].people)
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def disconnect(self):
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"""Close the socket with the server and all DCC client connections"""
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if self.connected:
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self.stop = True
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self.s.shutdown(socket.SHUT_RDWR)
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#Close all DCC connection
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for clt in self.dcc_clients:
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self.dcc_clients[clt].disconnect()
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self.stopping.wait()
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return True
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else:
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return False
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def kill(self):
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if self.connected:
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self.stop = True
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self.connected = False
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#Send a message in order to close the socket
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self.s.send(("WHO %s\r\n" % self.nick).encode ())
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self.stopping.wait()
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return True
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else:
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return False
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def join(self, chan, password = None):
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"""Join a channel"""
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if chan is not None and self.connected and chan not in self.channels:
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chn = xmlparser.module_state.ModuleState("channel")
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chn["name"] = chan
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chn["password"] = password
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self.node.addChild(chn)
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self.channels[chan] = channel.Channel(chn, self)
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if password is not None:
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self.s.send(("JOIN %s %s\r\n" % (chan, password)).encode ())
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else:
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self.s.send(("JOIN %s\r\n" % chan).encode ())
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return True
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else:
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return False
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def leave(self, chan):
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"""Leave a channel"""
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if chan is not None and self.connected and chan in self.channels:
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self.s.send(("PART %s\r\n" % self.channels[chan].name).encode ())
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del self.channels[chan]
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return True
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else:
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return False
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def launch(self, context, verb=True):
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"""Connect to the server if it is no yet connected"""
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self.context = context
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if not self.connected:
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self.stop = False
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self.start()
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elif verb:
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print (" Already connected.")
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def treat_msg(self, line, private = False):
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try:
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msg = message.Message (self, line, private)
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msg.treat(self.context.hooks)
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except:
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print ("\033[1;31mERROR:\033[0m occurred during the processing of the message: %s" % line)
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exc_type, exc_value, exc_traceback = sys.exc_info()
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traceback.print_exception(exc_type, exc_value, exc_traceback)
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def run(self):
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if not self.connected:
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self.s = socket.socket() #Create the socket
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self.s.connect((self.host, self.port)) #Connect to server
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self.stopping.clear()
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self.connected = True
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if self.password != None:
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self.s.send(b"PASS " + self.password.encode () + b"\r\n")
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self.s.send(("NICK %s\r\n" % self.nick).encode ())
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self.s.send(("USER %s %s bla :%s\r\n" % (self.nick, self.host, self.realname)).encode ())
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print ("Connection to %s:%d completed" % (self.host, self.port))
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if len(self.channels) > 0:
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for chn in self.channels.keys():
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if self.channels[chn].password is not None:
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self.s.send(("JOIN %s %s\r\n" % (self.channels[chn].name, self.channels[chn].password)).encode ())
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else:
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self.s.send(("JOIN %s\r\n" % self.channels[chn].name).encode ())
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print ("Listen to channels: %s" % ' '.join (self.channels.keys()))
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readbuffer = b'' #Here we store all the messages from server
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while not self.stop:
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raw = self.s.recv(1024) #recieve server messages
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if not raw:
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break
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readbuffer = readbuffer + raw
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temp = readbuffer.split(b'\n')
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readbuffer = temp.pop()
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for line in temp:
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self.treat_msg(line)
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if self.connected:
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self.s.close()
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self.connected = False
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print ("Server `%s' successfully stopped." % self.id)
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self.stopping.set()
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#Rearm Thread
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threading.Thread.__init__(self)
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