irctest.py

#! /usr/bin/env python
#
# Example program using irc.client.
#
# This program is free without restrictions; do anything you like with
# it.
#
# Joel Rosdahl <joel@rosdahl.net>

import irc.client
import sys
from threading import Thread
import logging
import warnings

log = logging.getLogger(__name__)

class IRCCat(Thread):
    def __init__(self, target):
        Thread.__init__(self)
        self.reactor = irc.client.Reactor()
        self.connection = self.reactor.server()
        self.dcc_connections = []
        self.reactor.add_global_handler("all_events", self._dispatcher, -10)
        self.reactor.add_global_handler("dcc_disconnect", self._dcc_disconnect, -10)
        self.target = target

    def _dispatcher(self, connection, event):
        """
        Dispatch events to on_<event.type> method, if present.
        """
        log.debug("_dispatcher: %s", event.type)

        def do_nothing(connection, event):
            return None

        method = getattr(self, "on_" + event.type, do_nothing)
        method(connection, event)

    def _dcc_disconnect(self, connection, event):
        self.dcc_connections.remove(connection)

    def connect(self, *args, **kwargs):
        """Connect using the underlying connection"""
        self.connection.connect(*args, **kwargs)

    def dcc(self, *args, **kwargs):
        """Create and associate a new DCCConnection object.

        Use the returned object to listen for or connect to
        a DCC peer.
        """
        dcc = self.reactor.dcc(*args, **kwargs)
        self.dcc_connections.append(dcc)
        return dcc

    def dcc_connect(self, address, port, dcctype="chat"):
        """Connect to a DCC peer.

        Arguments:

            address -- IP address of the peer.

            port -- Port to connect to.

        Returns a DCCConnection instance.
        """
        warnings.warn("Use self.dcc(type).connect()", DeprecationWarning)
        return self.dcc(dcctype).connect(address, port)

    def dcc_listen(self, dcctype="chat"):
        """Listen for connections from a DCC peer.

        Returns a DCCConnection instance.
        """
        warnings.warn("Use self.dcc(type).listen()", DeprecationWarning)
        return self.dcc(dcctype).listen()

    def start(self):
        """Start the IRC client."""
        super().start()
        self.reactor.process_forever()
    # ---------------------------- ^^^^ original simple client

    def on_welcome(self, connection, event):
        if irc.client.is_channel(self.target):
            connection.join(self.target)
        else:
            print(event)

    def on_join(self, connection, event):
        print(event)

    def on_disconnect(self, connection, event):
        sys.exit(0)

    def on_privmsg(self, connection, event):
        print(event)

    def run(self):
        print('running thead')
        while 1:
            line = sys.stdin.readline().strip()
            if not line:
                break
            self.connection.privmsg(self.target, line)
        self.connection.quit("Using irc.client.py")


def main():
    if len(sys.argv) != 4:
        print("Usage: irccat2 <server[:port]> <nickname> <target>")
        print("\ntarget is a nickname or a channel.")
        sys.exit(1)

    s = sys.argv[1].split(":", 1)
    server = s[0]
    if len(s) == 2:
        try:
            port = int(s[1])
        except ValueError:
            print("Error: Erroneous port.")
            sys.exit(1)
    else:
        port = 6667
    nickname = sys.argv[2]
    target = sys.argv[3]

    c = IRCCat(target)
    try:
        c.connect(server, port, nickname)
    except irc.client.ServerConnectionError as x:
        print(x)
        sys.exit(1)
    c.start()
    c.join()

if __name__ == "__main__":
    main()