monitor.py

# coding: utf-8
# monitor - XChat plugin for the IRCv3.2 command MONITOR
# Copyright (C) 2013  Jakob Kramer <jakob.kramer@gmx.de>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.

# TODO: split targets into multiple messages

import os.path

import xchat


__module_name__ = 'monitor'
__module_version__ = '0.2α'
__module_description__ = "Add support for IRCv3.2's MONITOR command"

REPLIES = {
    730: 'online',
    731: 'offline'
}

HELP = '/MONITOR ( {C,L,S} | {+,-} TARGETS )'
EMPTY_SET = frozenset([''])
CONFIG_FILENAME = os.path.join(xchat.get_info('configdir'), 'monitor_targets.conf')

# XXX: global variable
userlist = set()


def monitor_callback(word, word_eol, userdata):
    # targets: ':target[,target2]*'
    targets = word[-1][1:].split(',')
    reply = int(word[1])
    for user in targets:
        xchat.prnt('%s is %s (%s)' % (user.split('!')[0], REPLIES[reply], word[0][1:]))
    xchat.command('GUI FLASH')
    return xchat.EAT_XCHAT


def unload_callback(userdata):
    xchat.command('QUOTE MONITOR C')


def monitor_command(word, word_eol, userdata):
    global userlist

    if len(word) == 3 and word[1] in ('+', '-'):
        targets = set(word[2].split(','))

        if word[1] == '+':
            userlist |= targets

        elif word[1] == '-':
            userlist -= targets

        xchat.command('QUOTE MONITOR %s %s' % (word[1], ','.join(targets)))
        with open(CONFIG_FILENAME, 'w') as f:
            f.write(','.join(userlist))

    elif len(word) == 2 and word[1] in ('C', 'L', 'S'):
        if word[1] == 'C':
            userlist = set()
            with open(CONFIG_FILENAME, 'w') as f:
                pass
        xchat.command('QUOTE MONITOR %s' % word[1])

    else:
        xchat.prnt(HELP)

    return xchat.EAT_ALL


if __name__ == '__main__':
    try:
        with open(CONFIG_FILENAME) as f:
            userlist = set(f.read().split(',')) - EMPTY_SET
    except IOError:
        pass
    if userlist:
        xchat.command('QUOTE MONITOR + %s' % ','.join(userlist))

    for reply in REPLIES:
        xchat.hook_server(str(reply), monitor_callback)
    xchat.hook_unload(unload_callback)
    xchat.hook_command('MONITOR', monitor_command, help=HELP)