Hi,
I've created a script that would log on to an irc server, while
capturing packets.
I came across the following link:
http://dound.com/2009/09/integrating-twisted-with-a-pcap-based-python-packet-sniffer/
But I'm using pycap (http://pycap.sourceforge.net/), but I'm having
some difficulties with getting it to work.
Here's the code:
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
# twisted imports
from twisted.words.protocols import irc
from twisted.internet import reactor, protocol
from twisted.python import log
from twisted.internet.defer import Deferred
# system imports
import time, sys
import pycap.capture
def run_pcap(f):
p = pycap.capture.capture('eth0')
p.filter('src host ! 192.168.1.100 and dst host ! 192.168.1.100 and
dst port 25')
packet = None
print "Listening...\n"
while 1:
if packet:
print "Received packet."
reactor.callFromThread(f, packet)
else:
print "no packet\n"
packet = p.next()
class LogBot(irc.IRCClient):
"""A logging IRC bot."""
nickname = "testbot"
def packetShow(self, packet):
""" booga """
msg = "Port 25 hit | From:[%s] To:[%s]" % (packet[1].source,
packet[1].destination)
self.msg(self.channel, msg)
def connectionMade(self):
irc.IRCClient.connectionMade(self)
print "Setting up callInThread\n"
reactor.callInThread(run_pcap, self.packetShow)
print "Finished setting up callInThread\n"
def connectionLost(self, reason):
irc.IRCClient.connectionLost(self, reason)
# callbacks for events
def signedOn(self):
"""Called when bot has succesfully signed on to server."""
print "Signing on to %s.\n" % self.factory.channel
# self.join(self.factory.channel)
self.sendLine("JOIN %s" % (self.factory.channel,))
def joined(self, channel):
"""This will get called when the bot joins the channel."""
print "Joining channel %s." % channel
def privmsg(self, user, channel, msg):
"""This will get called when the bot receives a message."""
user = user.split('!', 1)[0]
# Check to see if they're sending me a private message
if channel == self.nickname:
msg = "It isn't nice to whisper! Play nice with the group."
self.msg(user, msg)
return
# Otherwise check to see if it is a message directed at me
if msg.startswith(self.nickname + ":"):
msg = "%s: I am a log bot" % user
self.msg(channel, msg)
def action(self, user, channel, msg):
"""This will get called when the bot sees someone do an action."""
user = user.split('!', 1)[0]
# irc callbacks
def irc_NICK(self, prefix, params):
"""Called when an IRC user changes their nickname."""
old_nick = prefix.split('!')[0]
new_nick = params[0]
# For fun, override the method that determines how a nickname is
changed on
# collisions. The default method appends an underscore.
def alterCollidedNick(self, nickname):
"""
Generate an altered version of a nickname that caused a
collision in an
effort to create an unused related name for subsequent
registration.
"""
return nickname + '^'
class LogBotFactory(protocol.ClientFactory):
"""A factory for LogBots.
A new protocol instance will be created each time we connect to the
server.
"""
def __init__(self, channel):
self.channel = channel
def buildProtocol(self, addr):
p = LogBot()
p.factory = self
return p
def clientConnectionLost(self, connector, reason):
"""If we get disconnected, reconnect to server."""
connector.connect()
def clientConnectionFailed(self, connector, reason):
print "connection failed:", reason
reactor.stop()
if __name__ == '__main__':
# create factory protocol and application
f = LogBotFactory("#testx")
# connect factory to this host and port
reactor.connectTCP("192.168.1.170", 6667, f)
# run bot
reactor.run()
I was told that perhaps I could use twisted.pair,
but I have no idea how to use the module. The
documentation is lacking and I've only just started
programming in Twisted.
Any help appreciated.
Edmund
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