core.py 57.5 KB
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# Copyright 2010 Le Coz Florent <louiz@louiz.org>
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#
# This file is part of Poezio.
#
# Poezio is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# Poezio 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.
#
# You should have received a copy of the GNU General Public License
# along with Poezio.  If not, see <http://www.gnu.org/licenses/>.

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from gettext import (bindtextdomain, textdomain, bind_textdomain_codeset,
                     gettext as _)
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from os.path import isfile
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from time import sleep

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import os
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import re
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import sys
import shlex
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import curses
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import threading
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import webbrowser

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from datetime import datetime
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import common
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import theme
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import logging

log = logging.getLogger(__name__)
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import multiuserchat as muc
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from connection import connection
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from handler import Handler
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from config import config
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from tab import MucTab, InfoTab, PrivateTab, RosterInfoTab, ConversationTab
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from user import User
from room import Room
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from roster import Roster, RosterGroup, roster
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from contact import Contact, Resource
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from message import Message
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from text_buffer import TextBuffer
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from keyboard import read_char
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from common import jid_get_domain, is_jid
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# http://xmpp.org/extensions/xep-0045.html#errorstatus
ERROR_AND_STATUS_CODES = {
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    '401': _('A password is required'),
    '403': _('You are banned from the room'),
    '404': _('The room does\'nt exist'),
    '405': _('Your are not allowed to create a new room'),
    '406': _('A reserved nick must be used'),
    '407': _('You are not in the member list'),
    '409': _('This nickname is already in use or has been reserved'),
    '503': _('The maximum number of users has been reached'),
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    }

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SHOW_NAME = {
    'dnd': _('busy'),
    'away': _('away'),
    'xa': _('not available'),
    'chat': _('chatty'),
    '': _('available')
    }
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resize_lock = threading.Lock()

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class Core(object):
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    """
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    User interface using ncurses
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    """
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    def __init__(self, xmpp):
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        self.running = True
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        self.stdscr = curses.initscr()
        self.init_curses(self.stdscr)
        self.xmpp = xmpp
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        default_tab = InfoTab(self.stdscr, self, "Info") if self.xmpp.anon\
            else RosterInfoTab(self.stdscr, self)
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        default_tab.on_gain_focus()
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        self.tabs = [default_tab]
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        # self.roster = Roster()
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        # a unique buffer used to store global informations
        # that are displayed in almost all tabs, in an
        # information window.
        self.information_buffer = TextBuffer()
        self.information_win_size = 2 # Todo, get this from config
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        self.ignores = {}
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        self.resize_timer = None
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        self.previous_tab_nb = 0
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        self.own_nick = config.get('own_nick', self.xmpp.boundjid.bare)
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        self.commands = {
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            'help': (self.command_help, '\_o< KOIN KOIN KOIN'),
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            'join': (self.command_join, _("Usage: /join [room_name][@server][/nick] [password]\nJoin: Join the specified room. You can specify a nickname after a slash (/). If no nickname is specified, you will use the default_nick in the configuration file. You can omit the room name: you will then join the room you\'re looking at (useful if you were kicked). You can also provide a room_name without specifying a server, the server of the room you're currently in will be used. You can also provide a password to join the room.\nExamples:\n/join room@server.tld\n/join room@server.tld/John\n/join room2\n/join /me_again\n/join\n/join room@server.tld/my_nick password\n/join / password")),
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            'quit': (self.command_quit, _("Usage: /quit\nQuit: Just disconnect from the server and exit poezio.")),
            'exit': (self.command_quit, _("Usage: /exit\nExit: Just disconnect from the server and exit poezio.")),
            'next': (self.rotate_rooms_right, _("Usage: /next\nNext: Go to the next room.")),
            'n': (self.rotate_rooms_right, _("Usage: /n\nN: Go to the next room.")),
            'prev': (self.rotate_rooms_left, _("Usage: /prev\nPrev: Go to the previous room.")),
            'p': (self.rotate_rooms_left, _("Usage: /p\nP: Go to the previous room.")),
            'win': (self.command_win, _("Usage: /win <number>\nWin: Go to the specified room.")),
            'w': (self.command_win, _("Usage: /w <number>\nW: Go to the specified room.")),
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            'ignore': (self.command_ignore, _("Usage: /ignore <nickname> \nIgnore: Ignore a specified nickname.")),
            'unignore': (self.command_unignore, _("Usage: /unignore <nickname>\nUnignore: Remove the specified nickname from the ignore list.")),
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            'part': (self.command_part, _("Usage: /part [message]\n Part: disconnect from a room. You can specify an optional message.")),
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            'show': (self.command_show, _("Usage: /show <availability> [status]\nShow: Change your availability and (optionaly) your status. The <availability> argument is one of \"avail, available, ok, here, chat, away, afk, dnd, busy, xa\" and the optional [status] argument will be your status message")),
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            'away': (self.command_away, _("Usage: /away [message]\nAway: Sets your availability to away and (optional) sets your status message. This is equivalent to '/show away [message]'")),
            'busy': (self.command_busy, _("Usage: /busy [message]\nBusy: Sets your availability to busy and (optional) sets your status message. This is equivalent to '/show busy [message]'")),
            'avail': (self.command_avail, _("Usage: /avail [message]\nAvail: Sets your availability to available and (optional) sets your status message. This is equivalent to '/show available [message]'")),
            'available': (self.command_avail, _("Usage: /available [message]\nAvailable: Sets your availability to available and (optional) sets your status message. This is equivalent to '/show available [message]'")),
           'bookmark': (self.command_bookmark, _("Usage: /bookmark [roomname][/nick]\nBookmark: Bookmark the specified room (you will then auto-join it on each poezio start). This commands uses the same syntaxe as /join. Type /help join for syntaxe examples. Note that when typing \"/bookmark\" on its own, the room will be bookmarked with the nickname you\'re currently using in this room (instead of default_nick)")),
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            'unquery': (self.command_unquery, _("Usage: /unquery\nClose the private conversation window")),
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            'set': (self.command_set, _("Usage: /set <option> [value]\nSet: Sets the value to the option in your configuration file. You can, for example, change your default nickname by doing `/set default_nick toto` or your resource with `/set resource blabla`. You can also set an empty value (nothing) by providing no [value] after <option>.")),
            'kick': (self.command_kick, _("Usage: /kick <nick> [reason]\nKick: Kick the user with the specified nickname. You also can give an optional reason.")),
            'topic': (self.command_topic, _("Usage: /topic <subject> \nTopic: Change the subject of the room")),
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            'link': (self.command_link, _("Usage: /link [option] [number]\nLink: Interact with a link in the conversation. Available options are 'open', 'copy'. Open just opens the link in the browser if it's http://, Copy just copy the link in the clipboard. An optional number can be provided, it indicates which link to interact with.")),
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            'query': (self.command_query, _('Usage: /query <nick> [message]\nQuery: Open a private conversation with <nick>. This nick has to be present in the room you\'re currently in. If you specified a message after the nickname, it will immediately be sent to this user')),
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            'nick': (self.command_nick, _("Usage: /nick <nickname>\nNick: Change your nickname in the current room")),
            'say': (self.command_say, _('Usage: /say <message>\nSay: Just send the message. Useful if you want your message to begin with a "/"')),
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            'whois': (self.command_whois, _('Usage: /whois <nickname>\nWhois: Request many informations about the user.')),
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            'theme': (self.command_theme, _('Usage: /theme\nTheme: Reload the theme defined in the config file.')),
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            'recolor': (self.command_recolor, _('Usage: /recolor\nRecolor: Re-assign a color to all participants of the current room, based on the last time they talked. Use this if the participants currently talking have too many identical colors.')),
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            }

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        self.key_func = {
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            "KEY_PPAGE": self.scroll_page_up,
            "KEY_NPAGE": self.scroll_page_down,
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            "KEY_F(5)": self.rotate_rooms_left,
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            "^P": self.rotate_rooms_left,
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            "KEY_F(6)": self.rotate_rooms_right,
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            "KEY_F(7)": self.shrink_information_win,
            "KEY_F(8)": self.grow_information_win,
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            "^N": self.rotate_rooms_right,
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            "KEY_RESIZE": self.call_for_resize,
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            'M-e': self.go_to_important_room,
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            'M-r': self.go_to_roster,
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            'M-z': self.go_to_previous_tab,
            'M-v': self.move_separator,
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            }

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        # Add handlers
        self.xmpp.add_event_handler("session_start", self.on_connected)
        self.xmpp.add_event_handler("groupchat_presence", self.on_groupchat_presence)
        self.xmpp.add_event_handler("groupchat_message", self.on_groupchat_message)
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        self.xmpp.add_event_handler("groupchat_subject", self.on_groupchat_subject)
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        self.xmpp.add_event_handler("message", self.on_message)
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        self.xmpp.add_event_handler("got_online" , self.on_got_online)
        self.xmpp.add_event_handler("got_offline" , self.on_got_offline)
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        self.xmpp.add_event_handler("roster_update", self.on_roster_update)
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        self.xmpp.add_event_handler("changed_status", self.on_presence)
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        # self.__debug_fill_roster()

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    def grow_information_win(self):
        """
        """
        if self.information_win_size == 14:
            return
        self.information_win_size += 1
        for tab in self.tabs:
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            tab.on_info_win_size_changed(self.stdscr)
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        self.refresh_window()

    def shrink_information_win(self):
        """
        """
        if self.information_win_size == 0:
            return
        self.information_win_size -= 1
        for tab in self.tabs:
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            tab.on_info_win_size_changed(self.stdscr)
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        self.refresh_window()
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    def on_got_offline(self, presence):
        jid = presence['from']
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        contact = roster.get_contact_by_jid(jid.bare)
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        if not contact:
            return
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        resource = contact.get_resource_by_fulljid(jid.full)
        assert resource
        self.information('%s is offline' % (resource.get_jid()), "Roster")
        contact.remove_resource(resource)
        if isinstance(self.current_tab(), RosterInfoTab):
            self.refresh_window()
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    def on_got_online(self, presence):
        jid = presence['from']
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        contact = roster.get_contact_by_jid(jid.bare)
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        if not contact:
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            # Todo, handle presence comming from contacts not in roster
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            return
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        resource = contact.get_resource_by_fulljid(jid.full)
        assert not resource
        resource = Resource(jid.full)
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        status = presence['type']
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        status_message = presence['status']
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        priority = presence.getPriority() or 0
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        resource.set_status(status_message)
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        resource.set_presence(status)
        resource.set_priority(priority)
        contact.add_resource(resource)
        self.information("%s is online (%s)" % (resource.get_jid().full, status), "Roster")
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    def on_connected(self, event):
        """
        Called when we are connected and authenticated
        """
        self.information(_("Welcome on Poezio \o/!"))
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        self.information(_("Your JID is %s") % self.xmpp.boundjid.full)
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        if not self.xmpp.anon:
            # request the roster
            self.xmpp.getRoster()
            # send initial presence
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            self.xmpp.makePresence().send()
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        rooms = config.get('rooms', '')
        if rooms == '' or not isinstance(rooms, str):
            return
        rooms = rooms.split(':')
        for room in rooms:
            args = room.split('/')
            if args[0] == '':
                return
            roomname = args[0]
            if len(args) == 2:
                nick = args[1]
            else:
                default = os.environ.get('USER') if os.environ.get('USER') else 'poezio'
                nick = config.get('default_nick', '')
                if nick == '':
                    nick = default
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            self.open_new_room(roomname, nick, False)
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            muc.join_groupchat(self.xmpp, roomname, nick)
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        # if not self.xmpp.anon:
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        # Todo: SEND VCARD
        return
        if config.get('jid', '') == '': # Don't send the vcard if we're not anonymous
            self.vcard_sender.start()   # because the user ALREADY has one on the server

    def on_groupchat_presence(self, presence):
        """
        Triggered whenever a presence stanza is received from a user in a multi-user chat room.
        Display the presence on the room window and update the
        presence information of the concerned user
        """
        from_nick = presence['from'].resource
        from_room = presence['from'].bare
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        room = self.get_room_by_name(from_room)
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        code = presence.find('{jabber:client}status')
        status_codes = set([s.attrib['code'] for s in presence.findall('{http://jabber.org/protocol/muc#user}x/{http://jabber.org/protocol/muc#user}status')])
        # Check if it's not an error presence.
        if presence['type'] == 'error':
            return self.room_error(presence, from_room)
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        if not room:
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            return
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        msg = None
        affiliation = presence['muc']['affiliation']
        show = presence['show']
        status = presence['status']
        role = presence['muc']['role']
        jid = presence['muc']['jid']
        typ = presence['type']
        if not room.joined:     # user in the room BEFORE us.
            # ignore redondant presence message, see bug #1509
            if from_nick not in [user.nick for user in room.users]:
                new_user = User(from_nick, affiliation, show, status, role)
                room.users.append(new_user)
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                if from_nick == room.own_nick:
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                    room.joined = True
                    new_user.color = theme.COLOR_OWN_NICK
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                    self.add_message_to_text_buffer(room, _("Your nickname is %s") % (from_nick))
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                    if '170' in status_codes:
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                        self.add_message_to_text_buffer(room, 'Warning: this room is publicly logged')
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        else:
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            change_nick = '303' in status_codes
            kick = '307' in status_codes and typ == 'unavailable'
            user = room.get_user_by_name(from_nick)
            # New user
            if not user:
                self.on_user_join(room, from_nick, affiliation, show, status, role, jid)
            # nick change
            elif change_nick:
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                self.on_user_nick_change(room, presence, user, from_nick, from_room)
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            # kick
            elif kick:
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                self.on_user_kicked(room, presence, user, from_nick)
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            # user quit
            elif typ == 'unavailable':
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                self.on_user_leave_groupchat(room, user, jid, status, from_nick, from_room)
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            # status change
            else:
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                self.on_user_change_status(room, user, from_nick, from_room, affiliation, role, show, status)
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        self.refresh_window()
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        self.doupdate()
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    def on_user_join(self, room, from_nick, affiliation, show, status, role, jid):
        """
        When a new user joins a groupchat
        """
        room.users.append(User(from_nick, affiliation,
                               show, status, role))
        hide_exit_join = config.get('hide_exit_join', -1)
        if hide_exit_join != 0:
            if not jid.full:
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                self.add_message_to_text_buffer(room, _('%(spec)s "[%(nick)s]" joined the room') % {'nick':from_nick.replace('"', '\\"'), 'spec':theme.CHAR_JOIN.replace('"', '\\"')}, colorized=True)
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            else:
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                self.add_message_to_text_buffer(room, _('%(spec)s "[%(nick)s]" "(%(jid)s)" joined the room') % {'spec':theme.CHAR_JOIN.replace('"', '\\"'), 'nick':from_nick.replace('"', '\\"'), 'jid':jid.full}, colorized=True)
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    def on_user_nick_change(self, room, presence, user, from_nick, from_room):
        new_nick = presence.find('{http://jabber.org/protocol/muc#user}x/{http://jabber.org/protocol/muc#user}item').attrib['nick']
        if user.nick == room.own_nick:
            room.own_nick = new_nick
            # also change our nick in all private discussion of this room
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            for _tab in self.tabs:
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                if isinstance(_tab, PrivateTab) and _tab.get_name().split('/', 1)[0] == room.name:
                    _tab.get_room().own_nick = new_nick
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        user.change_nick(new_nick)
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        self.add_message_to_text_buffer(room, _('"[%(old)s]" is now known as "[%(new)s]"') % {'old':from_nick.replace('"', '\\"'), 'new':new_nick.replace('"', '\\"')}, colorized=True)
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        # rename the private tabs if needed
        private_room = self.get_room_by_name('%s/%s' % (from_room, from_nick))
        if private_room:
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            self.add_message_to_text_buffer(private_room, _('"[%(old_nick)s]" is now known as "[%(new_nick)s]"') % {'old_nick':from_nick.replace('"', '\\"'), 'new_nick':new_nick.replace('"', '\\"')}, colorized=True)
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            new_jid = private_room.name.split('/', 1)[0]+'/'+new_nick
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            private_room.name = new_jid
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    def on_user_kicked(self, room, presence, user, from_nick):
        """
        When someone is kicked
        """
        room.users.remove(user)
        by = presence.find('{http://jabber.org/protocol/muc#user}x/{http://jabber.org/protocol/muc#user}item/{http://jabber.org/protocol/muc#user}actor')
        reason = presence.find('{http://jabber.org/protocol/muc#user}x/{http://jabber.org/protocol/muc#user}item/{http://jabber.org/protocol/muc#user}reason')
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        by = by.attrib['jid'] if by is not None else None
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        reason = reason.text if reason else ''
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        if from_nick == room.own_nick: # we are kicked
            room.disconnect()
            if by:
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                kick_msg = _('%(spec)s [You] have been kicked by "[%(by)s]"') % {'spec': theme.CHAR_KICK.replace('"', '\\"'), 'by':by}
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            else:
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                kick_msg = _('%(spec)s [You] have been kicked.') % {'spec':theme.CHAR_KICK.replace('"', '\\"')}
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            # try to auto-rejoin
            if config.get('autorejoin', 'false') == 'true':
                muc.join_groupchat(self.xmpp, room.name, room.own_nick)
        else:
            if by:
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                kick_msg = _('%(spec)s "[%(nick)s]" has been kicked by "[%(by)s]"') % {'spec':theme.CHAR_KICK.replace('"', '\\"'), 'nick':from_nick.replace('"', '\\"'), 'by':by.replace('"', '\\"')}
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            else:
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                kick_msg = _('%(spec)s "[%(nick)s]" has been kicked') % {'spec':theme.CHAR_KICK, 'nick':from_nick.replace('"', '\\"')}
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        if reason:
            kick_msg += _(' Reason: %(reason)s') % {'reason': reason}
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        self.add_message_to_text_buffer(room, kick_msg, colorized=True)
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    def on_user_leave_groupchat(self, room, user, jid, status, from_nick, from_room):
        """
        When an user leaves a groupchat
        """
        room.users.remove(user)
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        if room.own_nick == user.nick:
            # We are now out of the room. Happens with some buggy (? not sure) servers
            room.disconnect()
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        hide_exit_join = config.get('hide_exit_join', -1) if config.get('hide_exit_join', -1) >= -1 else -1
        if hide_exit_join == -1 or user.has_talked_since(hide_exit_join):
            if not jid.full:
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                leave_msg = _('%(spec)s "[%(nick)s]" has left the room') % {'nick':from_nick.replace('"', '\\"'), 'spec':theme.CHAR_QUIT.replace('"', '\\"')}
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            else:
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                leave_msg = _('%(spec)s "[%(nick)s]" "(%(jid)s)" has left the room') % {'spec':theme.CHAR_QUIT.replace('"', '\\"'), 'nick':from_nick.replace('"', '\\"'), 'jid':jid.full.replace('"', '\\"')}
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            if status:
                leave_msg += ' (%s)' % status
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            self.add_message_to_text_buffer(room, leave_msg, colorized=True)
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        private_room = self.get_room_by_name('%s/%s' % (from_room, from_nick))
        if private_room:
            if not status:
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                self.add_message_to_text_buffer(private_room, _('%(spec)s "[%(nick)s]" has left the room') % {'nick':from_nick.replace('"', '\\"'), 'spec':theme.CHAR_QUIT.replace('"', '\\"')}, colorized=True)
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            else:
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                self.add_message_to_text_buffer(private_room, _('%(spec)s "[%(nick)s]" has left the room "(%(status)s)"') % {'nick':from_nick.replace('"', '\\"'), 'spec':theme.CHAR_QUIT, 'status': status.replace('"', '\\"')}, colorized=True)
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    def on_user_change_status(self, room, user, from_nick, from_room, affiliation, role, show, status):
        """
        When an user changes her status
        """
        # build the message
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        display_message = False # flag to know if something significant enough
        # to be displayed has changed
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        msg = _('"%s" changed: ')% from_nick.replace('"', '\\"')
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        if affiliation != user.affiliation:
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            msg += _('affiliation: %s, ') % affiliation
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            display_message = True
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        if role != user.role:
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            msg += _('role: %s, ') % role
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            display_message = True
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        if show != user.show and show in list(SHOW_NAME.keys()):
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            msg += _('show: %s, ') % SHOW_NAME[show]
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            display_message = True
        if status and status != user.status:
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            msg += _('status: %s, ') % status
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            display_message = True
        if not display_message:
            return
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        msg = msg[:-2] # remove the last ", "
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        hide_status_change = config.get('hide_status_change', -1) if config.get('hide_status_change', -1) >= -1 else -1
        if (hide_status_change == -1 or \
                user.has_talked_since(hide_status_change) or\
                user.nick == room.own_nick)\
                and\
                (affiliation != user.affiliation or\
                    role != user.role or\
                    show != user.show or\
                    status != user.status):
            # display the message in the room
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            self.add_message_to_text_buffer(room, msg, colorized=True)
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        private_room = self.get_room_by_name('%s/%s' % (from_room, from_nick))
        if private_room: # display the message in private
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            self.add_message_to_text_buffer(private_room, msg, colorized=True)
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        # finally, effectively change the user status
        user.update(affiliation, show, status, role)

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    def on_message(self, message):
        """
        When receiving private message from a muc OR a normal message
        (from one of our contacts)
        """
        if message['type'] == 'groupchat':
            return None
        # Differentiate both type of messages, and call the appropriate handler.
        jid_from = message['from']
432 433
        for tab in self.tabs:
            if isinstance(tab, MucTab) and tab.get_name() == jid_from.bare: # check all the MUC we are in
434
                if message['type'] == 'error':
435
                    return self.room_error(message, tab.get_room().name)
436 437
                else:
                    return self.on_groupchat_private_message(message)
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        return self.on_normal_message(message)

    def on_groupchat_private_message(self, message):
        """
        We received a Private Message (from someone in a Muc)
        """
        jid = message['from']
445
        nick_from = jid.resource
446
        room_from = jid.bare
447 448
        room = self.get_room_by_name(jid.full) # get the tab with the private conversation
        if not room: # It's the first message we receive: create the tab
449
            room = self.open_private_window(room_from, nick_from, False)
450 451 452
            if not room:
                return
        body = message['body']
453 454
        self.add_message_to_text_buffer(room, body, None, nick_from)
        self.refresh_window()
455
        self.doupdate()
456

457 458 459 460 461
    def focus_tab_named(self, tab_name):
        for tab in self.tabs:
            if tab.get_name() == tab_name:
                self.command_win('%s' % (tab.nb,))

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    def on_normal_message(self, message):
        """
        When receiving "normal" messages (from someone in our roster)
        """
466 467
        jid = message['from'].bare
        room = self.get_conversation_by_jid(jid)
468 469 470
        body = message['body']
        if not body:
            return
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        if not room:
            room = self.open_conversation_window(jid, False)
            if not room:
                return
        self.add_message_to_text_buffer(room, body, None, jid)
        self.refresh_window()
477 478 479 480 481
        return

    def on_presence(self, presence):
        """
        """
482
        jid = presence['from']
483
        log.debug('Presence Received: %s\n' % presence)
484
        contact = roster.get_contact_by_jid(jid.bare)
485
        log.debug('Contact: %s\n' % contact)
486 487 488
        if not contact:
            return
        resource = contact.get_resource_by_fulljid(jid.full)
489
        log.debug('Resource: %s\n' % resource)
490 491 492
        if not resource:
            return
        status = presence['type']
493
        status_message = presence['status']
494 495 496
        priority = presence.getPriority() or 0
        resource.set_presence(status)
        resource.set_priority(priority)
497
        resource.set_status(status_message)
498 499
        if isinstance(self.current_tab(), RosterInfoTab):
            self.refresh_window()
500

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    def __debug_fill_roster(self):
        for i in range(10):
            jid = 'contact%s@fion%s.org'%(i,i)
            contact = Contact(jid)
            contact.set_ask('wat')
            contact.set_subscription('both')
            roster.add_contact(contact, jid)
            contact.set_name('%s %s fion'%(i,i))
            roster.edit_groups_of_contact(contact, ['hello'])
        for i in range(10):
            jid = 'test%s@bernard%s.org'%(i,i)
            contact = Contact(jid)
            contact.set_ask('wat')
            contact.set_subscription('both')
            roster.add_contact(contact, jid)
            contact.set_name('%s test'%(i))
            roster.edit_groups_of_contact(contact, ['hello'])
        for i in range(10):
            jid = 'pouet@top%s.org'%(i)
            contact = Contact(jid)
            contact.set_ask('wat')
            contact.set_subscription('both')
            roster.add_contact(contact, jid)
            contact.set_name('%s oula'%(i))
            roster.edit_groups_of_contact(contact, ['hello'])
        if isinstance(self.current_tab(), RosterInfoTab):
            self.refresh_window()

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    def on_roster_update(self, iq):
        """
        A subscription changed, or we received a roster item
        after a roster request, etc
        """
534 535
        for item in iq.findall('{jabber:iq:roster}query/{jabber:iq:roster}item'):
            jid = item.attrib['jid']
536
            contact = roster.get_contact_by_jid(jid)
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            if not contact:
                contact = Contact(jid)
539
                roster.add_contact(contact, jid)
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            if 'ask' in item.attrib:
                contact.set_ask(item.attrib['ask'])
            else:
                contact.set_ask(None)
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            if 'name' in item.attrib:
                contact.set_name(item.attrib['name'])
            else:
                contact.set_name(None)
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            if item.attrib['subscription']:
                contact.set_subscription(item.attrib['subscription'])
            groups = item.findall('{jabber:iq:roster}group')
551
            roster.edit_groups_of_contact(contact, [group.text for group in groups])
552 553
        if isinstance(self.current_tab(), RosterInfoTab):
            self.refresh_window()
554

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    def call_for_resize(self):
        """
        Starts a very short timer. If no other terminal resize
        occured in this delay then poezio is REALLY resize.
        This is to avoid multiple unnecessary software resizes (this
        can be heavy on resource on slow computers or networks)
        """
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        # with resize_lock:
            # if self.resize_timer:
            #     # a recent terminal resize occured.
            #     # Cancel the programmed software resize
            #     self.resize_timer.cancel()
            # # add the new timer
            # self.resize_timer = threading.Timer(0.15, self.resize_window)
            # self.resize_timer.start()
        self.resize_window()
571

572 573 574 575
    def resize_window(self):
        """
        Resize the whole screen
        """
576
        with resize_lock:
577
           # self.resize_timer = None
578 579 580
            for tab in self.tabs:
                tab.resize(self.stdscr)
            self.refresh_window()
581

582
    def main_loop(self):
583 584 585
        """
        main loop waiting for the user to press a key
        """
586
        self.refresh_window()
587
        while self.running:
588
            self.doupdate()
589
            char=read_char(self.stdscr)
590
            # search for keyboard shortcut
591
            if char in list(self.key_func.keys()):
592
                self.key_func[char]()
593
            else:
594
                self.do_command(char)
595

596
    def current_tab(self):
597 598 599
        """
        returns the current room, the one we are viewing
        """
600
        return self.tabs[0]
601

602 603 604 605 606 607 608 609 610 611
    def get_conversation_by_jid(self, jid):
        """
        Return the room of the ConversationTab with the given jid
        """
        for tab in self.tabs:
            if isinstance(tab, ConversationTab):
                if tab.get_name() == jid:
                    return tab.get_room()
        return None

612
    def get_room_by_name(self, name):
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        """
        returns the room that has this name
        """
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        for tab in self.tabs:
            if (isinstance(tab, MucTab) or
                isinstance(tab, PrivateTab)) and tab.get_name() == name:
                return tab.get_room()
620
        return None
621

622
    def init_curses(self, stdscr):
623 624 625
        """
        ncurses initialization
        """
626
        curses.curs_set(1)
627
        curses.noecho()
628 629
        # curses.raw()
        theme.init_colors()
630
        stdscr.keypad(True)
631

632
    def reset_curses(self):
633 634 635 636 637
        """
        Reset terminal capabilities to what they were before ncurses
        init
        """
        curses.echo()
638
        curses.nocbreak()
639
        curses.endwin()
640

641 642 643 644
    def refresh_window(self):
        """
        Refresh everything
        """
645
        self.current_tab().set_color_state(theme.COLOR_TAB_CURRENT)
646
        self.current_tab().refresh(self.tabs, self.information_buffer, roster)
647
        self.doupdate()
648

649
    def open_new_room(self, room, nick, focus=True):
650
        """
651
        Open a new MucTab containing a muc Room, using the specified nick
652
        """
653
        r = Room(room, nick)
654
        new_tab = MucTab(self.stdscr, self, r)
655 656
        if self.current_tab().nb == 0:
            self.tabs.append(new_tab)
657
        else:
658 659 660
            for ta in self.tabs:
                if ta.nb == 0:
                    self.tabs.insert(self.tabs.index(ta), new_tab)
661
                    break
662
        if focus:
663
            self.command_win("%s" % new_tab.nb)
664
        self.refresh_window()
665

666 667 668 669 670 671
    def go_to_roster(self):
        self.command_win('0')

    def go_to_previous_tab(self):
        self.command_win('%s' % (self.previous_tab_nb,))

672 673 674 675 676 677 678
    def go_to_important_room(self):
        """
        Go to the next room with activity, in this order:
        - A personal conversation with a new message
        - A Muc with an highlight
        - A Muc with any new message
        """
679 680 681
        for tab in self.tabs:
            if tab.get_color_state() == theme.COLOR_TAB_PRIVATE:
                self.command_win('%s' % tab.nb)
682
                return
683 684 685
        for tab in self.tabs:
            if tab.get_color_state() == theme.COLOR_TAB_HIGHLIGHT:
                self.command_win('%s' % tab.nb)
686
                return
687 688 689
        for tab in self.tabs:
            if tab.get_color_state() == theme.COLOR_TAB_NEW_MESSAGE:
                self.command_win('%s' % tab.nb)
690
                return
691

692
    def rotate_rooms_right(self, args=None):
693 694 695
        """
        rotate the rooms list to the right
        """
696 697 698
        self.current_tab().on_lose_focus()
        self.tabs.append(self.tabs.pop(0))
        self.current_tab().on_gain_focus()
699
        self.refresh_window()
700

701
    def rotate_rooms_left(self, args=None):
702 703 704
        """
        rotate the rooms list to the right
        """
705 706 707
        self.current_tab().on_lose_focus()
        self.tabs.insert(0, self.tabs.pop())
        self.current_tab().on_gain_focus()
708
        self.refresh_window()
709

710
    def scroll_page_down(self, args=None):
711
        self.current_tab().on_scroll_down()
712
        self.refresh_window()
713 714

    def scroll_page_up(self, args=None):
715
        self.current_tab().on_scroll_up()
716
        self.refresh_window()
717

718
    def room_error(self, error, room_name):
719 720 721
        """
        Display the error on the room window
        """
722 723 724 725 726 727
        room = self.get_room_by_name(room_name)
        msg = error['error']['type']
        condition = error['error']['condition']
        code = error['error']['code']
        body = error['error']['text']
        if not body:
728
            if code in list(ERROR_AND_STATUS_CODES.keys()):
729 730
                body = ERROR_AND_STATUS_CODES[code]
            else:
731 732
                body = condition or _('Unknown error')
        if code:
733 734
            msg = _('Error: %(code)s - %(msg)s: %(body)s') % {'msg':msg, 'body':body, 'code':code}
            self.add_message_to_text_buffer(room, msg)
735
        else:
736 737
            msg = _('Error: %(msg)s: %(body)s') % {'msg':msg, 'body':body}
            self.add_message_to_text_buffer(room, msg)
738
        if code == '401':
739 740
            msg = _('To provide a password in order to join the room, type "/join / password" (replace "password" by the real password)')
            self.add_message_to_text_buffer(room, msg)
741
        if code == '409':
742 743 744
            if config.get('alternative_nickname', '') != '':
                self.command_join('%s/%s'% (room.name, room.own_nick+config.get('alternative_nickname', '')))
            else:
745
                self.add_message_to_text_buffer(room, _('You can join the room with an other nick, by typing "/join /other_nick"'))
746
        self.refresh_window()
747

748
    def open_conversation_window(self, jid, focus=True):
749 750 751
        """
        open a new conversation tab and focus it if needed
        """
752 753
        text_buffer = TextBuffer()
        new_tab = ConversationTab(self.stdscr, self, text_buffer, jid)
754 755 756 757 758 759 760 761 762 763 764
        # insert it in the rooms
        if self.current_tab().nb == 0:
            self.tabs.append(new_tab)
        else:
            for ta in self.tabs:
                if ta.nb == 0:
                    self.tabs.insert(self.tabs.index(ta), new_tab)
                    break
        if focus:               # focus the room if needed
            self.command_win('%s' % (new_tab.nb))
        self.refresh_window()
765
        return text_buffer
766

767
    def open_private_window(self, room_name, user_nick, focus=True):
768
        complete_jid = room_name+'/'+user_nick
769 770 771 772
        for tab in self.tabs: # if the room exists, focus it and return
            if isinstance(tab, PrivateTab):
                if tab.get_name() == complete_jid:
                    self.command_win('%s' % tab.nb)
773 774
                    return
        # create the new tab
775
        room = self.get_room_by_name(room_name)
776 777 778
        if not room:
            return None
        own_nick = room.own_nick
779
        r = Room(complete_jid, own_nick) # PrivateRoom here
780
        new_tab = PrivateTab(self.stdscr, self, r)
781
        # insert it in the tabs
782 783
        if self.current_tab().nb == 0:
            self.tabs.append(new_tab)
784
        else:
785 786 787
            for ta in self.tabs:
                if ta.nb == 0:
                    self.tabs.insert(self.tabs.index(ta), new_tab)
788 789
                    break
        if focus:               # focus the room if needed
790
            self.command_win('%s' % (new_tab.nb))
791
        # self.window.new_room(r)
792
        self.refresh_window()
793 794
        return r

795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811
    def on_groupchat_subject(self, message):
        """
        triggered when the topic is changed
        """
        nick_from = message['mucnick']
        room_from = message.getMucroom()
        room = self.get_room_by_name(room_from)
        subject = message['subject']
        if not subject:
            return
        if nick_from:
            self.add_message_to_text_buffer(room, _("%(nick)s changed the subject to: %(subject)s") % {'nick':nick_from, 'subject':subject}, time=None)
        else:
            self.add_message_to_text_buffer(room, _("The subject is: %(subject)s") % {'subject':subject}, time=None)
        room.topic = subject.replace('\n', '|')
        self.refresh_window()

812
    def on_groupchat_message(self, message):
813
        """
814
        Triggered whenever a message is received from a multi-user chat room.
815
        """
816 817
        delay_tag = message.find('{urn:xmpp:delay}delay')
        if delay_tag is not None:
818
            delayed = True