core.py 52.3 KB
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# Copyright 2010-2011 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 traceback
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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

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from sleekxmpp.xmlstream.stanzabase import JID

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log = logging.getLogger(__name__)
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import multiuserchat as muc
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import tabs
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import windows
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from connection import connection
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from config import config
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from logger import logger
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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 text_buffer import TextBuffer
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from keyboard import read_char
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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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        # All uncaught exception are given to this callback, instead
        # of being displayed on the screen and exiting the program.
        sys.excepthook = self.on_exception
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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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        # a unique buffer used to store global informations
        # that are displayed in almost all tabs, in an
        # information window.
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        self.information_buffer = TextBuffer()
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        self.information_win_size = config.get('info_win_height', 2, 'var')
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        default_tab = tabs.InfoTab(self) if self.xmpp.anon\
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            else tabs.RosterInfoTab(self)
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        default_tab.on_gain_focus()
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        self.tabs = [default_tab]
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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', '') or self.xmpp.boundjid.user
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        # global commands, available from all tabs
        # a command is tuple of the form:
        # (the function executing the command. Takes a string as argument,
        #  a string representing the help message,
        #  a completion function, taking a Input as argument. Can be None)
        #  The completion function should return True if a completion was
        #  made ; False otherwise
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        self.commands = {
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            'help': (self.command_help, '\_o< KOIN KOIN KOIN', None),
            '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"), self.completion_join),
            'exit': (self.command_quit, _("Usage: /exit\nExit: Just disconnect from the server and exit poezio."), None),
            'next': (self.rotate_rooms_right, _("Usage: /next\nNext: Go to the next room."), None),
            'n': (self.rotate_rooms_right, _("Usage: /n\nN: Go to the next room."), None),
            'prev': (self.rotate_rooms_left, _("Usage: /prev\nPrev: Go to the previous room."), None),
            'p': (self.rotate_rooms_left, _("Usage: /p\nP: Go to the previous room."), None),
            'win': (self.command_win, _("Usage: /win <number>\nWin: Go to the specified room."), None),
            'w': (self.command_win, _("Usage: /w <number>\nW: Go to the specified room."), None),
            '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"), None),
            '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]'"), None),
            '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]'"), None),
            '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]'"), None),
            '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]'"), None),
           '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)"), None),
            '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>."), None),
            'whois': (self.command_whois, _('Usage: /whois <nickname>\nWhois: Request many informations about the user.'), None),
            'theme': (self.command_theme, _('Usage: /theme\nTheme: Reload the theme defined in the config file.'), None),
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            'list': (self.command_list, _('Usage: /list\n/List: get the list of public chatrooms on the specified server'), self.completion_list),
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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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            'kLFT3': self.rotate_rooms_left,
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            "KEY_F(6)": self.rotate_rooms_right,
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            "^N": self.rotate_rooms_right,
            'kRIT3': 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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            "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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            '^L': self.full_screen_redraw,
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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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    def on_exception(self, typ, value, trace):
        """
        When an exception in raised, open a special tab
        displaying the traceback and some instructions to
        make a bug report.
        """
        try:
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            tb_tab = tabs.SimpleTextTab(self, "/!\ Oups, an error occured (this may not be fatal). /!\\\nPlease report this bug (by copying the present error message and explaining what you were doing) on the page http://codingteam.net/project/poezio/bugs/add\n\n%s\n\nIf Poezio does not respond anymore, kill it with Ctrl+\\, and sorry about that :(" % ''.join(traceback.format_exception(typ, value, trace)))
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            self.add_tab(tb_tab, focus=True)
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        except Exception:       # If an exception is raised in this code,
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                                # this is fatal, so we exit cleanly and display the traceback
            curses.endwin()
            raise

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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()
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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()
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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")
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        # If a resource got offline, display the message in the conversation with this
        # precise resource.
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        tab = self.get_tab_by_name(jid.full)
        if tab and isinstance(tab, tabs.ConversationTab):
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            self.add_message_to_text_buffer(tab.get_room(), '%s is offline' % (resource.get_jid().full))
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        contact.remove_resource(resource)
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        # Display the message in the conversation with the bare JID only if that was
        # the only resource online (i.e. now the contact is completely disconnected)
        if not contact.get_highest_priority_resource(): # No resource left: that was the last one
            tab = self.get_tab_by_name(jid.bare)
            if tab and isinstance(tab, tabs.ConversationTab):
                self.add_message_to_text_buffer(tab.get_room(), '%s is offline' % (jid.bare))
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        if isinstance(self.current_tab(), tabs.RosterInfoTab):
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            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:
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            jid = JID(room)
            if jid.bare == '':
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                return
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            if jid.resource != '':
                nick = jid.resource
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            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(jid.bare, nick, False)
            muc.join_groupchat(self.xmpp, jid.bare, 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, tabs.PrivateTab) and JID(_tab.get_name()).bare == room.name:
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                    _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 = JID(private_room.name).bare+'/'+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
443
            self.add_message_to_text_buffer(private_room, msg, colorized=True)
444 445 446
        # 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':
453
            return
454 455
        # Differentiate both type of messages, and call the appropriate handler.
        jid_from = message['from']
456
        for tab in self.tabs:
457
            if tab.get_name() == jid_from.bare and isinstance(tab, tabs.MucTab):
458
                if message['type'] == 'error':
459
                    return self.room_error(message, tab.get_room().name)
460 461
                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']
469
        nick_from = jid.resource
470
        room_from = jid.bare
471 472
        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
473
            room = self.open_private_window(room_from, nick_from, False)
474 475 476
            if not room:
                return
        body = message['body']
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        room.add_message(body, time=None, nickname=nick_from,
                         colorized=False,
                         forced_user=self.get_room_by_name(room_from).get_user_by_name(nick_from))
480
        self.refresh_window()
481
        self.doupdate()
482

483 484 485 486 487
    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)
        """
492
        jid = message['from']
493 494 495
        body = message['body']
        if not body:
            return
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        # We first check if we have a conversation opened with this precise resource
        conversation = self.get_tab_by_name(jid.full)
        if not conversation:
            # If not, we search for a conversation with the bare jid
            conversation = self.get_tab_by_name(jid.bare)
            if not conversation:
                # We create the conversation with the bare Jid if nothing was found
                conversation = self.open_conversation_window(jid.bare, False)
504
        if roster.get_contact_by_jid(jid.bare):
505
            remote_nick = roster.get_contact_by_jid(jid.bare).get_name() or jid.user
506
        else:
507
            remote_nick = jid.user
508
        conversation.get_room().add_message(body, None, remote_nick, False, theme.COLOR_REMOTE_USER)
509 510
        if self.current_tab() is not conversation:
            conversation.set_color_state(theme.COLOR_TAB_PRIVATE)
511
        self.refresh_window()
512 513 514 515

    def on_presence(self, presence):
        """
        """
516
        jid = presence['from']
517
        contact = roster.get_contact_by_jid(jid.bare)
518 519 520 521 522 523
        if not contact:
            return
        resource = contact.get_resource_by_fulljid(jid.full)
        if not resource:
            return
        status = presence['type']
524
        status_message = presence['status']
525 526 527
        priority = presence.getPriority() or 0
        resource.set_presence(status)
        resource.set_priority(priority)
528
        resource.set_status(status_message)
529
        if isinstance(self.current_tab(), tabs.RosterInfoTab):
530
            self.refresh_window()
531

532 533 534 535 536
    def on_roster_update(self, iq):
        """
        A subscription changed, or we received a roster item
        after a roster request, etc
        """
537 538
        for item in iq.findall('{jabber:iq:roster}query/{jabber:iq:roster}item'):
            jid = item.attrib['jid']
539
            contact = roster.get_contact_by_jid(jid)
540 541
            if not contact:
                contact = Contact(jid)
542
                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)
547 548 549 550
            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')
554
            roster.edit_groups_of_contact(contact, [group.text for group in groups])
555
        if isinstance(self.current_tab(), tabs.RosterInfoTab):
556
            self.refresh_window()
557

558 559 560 561 562 563 564
    def full_screen_redraw(self):
        """
        Completely erase and redraw the screen
        """
        self.stdscr.clear()
        self.call_for_resize()

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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)
        """
572 573 574 575 576 577 578 579 580
        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(0.1, self.resize_window)
            self.resize_timer.start()
        # self.resize_window()
581

582 583 584 585
    def resize_window(self):
        """
        Resize the whole screen
        """
586 587
        with resize_lock:
            for tab in self.tabs:
588
                tab.resize()
589
            self.refresh_window()
590

591
    def main_loop(self):
592 593 594
        """
        main loop waiting for the user to press a key
        """
595
        self.refresh_window()
596
        while self.running:
597
            self.doupdate()
598
            char=read_char(self.stdscr)
599
            # search for keyboard shortcut
600
            if char in list(self.key_func.keys()):
601
                self.key_func[char]()
602
            else:
603
                self.do_command(char)
604

605
    def current_tab(self):
606 607 608
        """
        returns the current room, the one we are viewing
        """
609
        return self.tabs[0]
610

611 612 613 614 615
    def get_conversation_by_jid(self, jid):
        """
        Return the room of the ConversationTab with the given jid
        """
        for tab in self.tabs:
616
            if isinstance(tab, tabs.ConversationTab):
617 618 619 620
                if tab.get_name() == jid:
                    return tab.get_room()
        return None

621 622 623 624 625 626 627 628 629
    def get_tab_by_name(self, name):
        """
        Get the tab with the given name.
        """
        for tab in self.tabs:
            if tab.get_name() == name:
                return tab
        return None

630
    def get_room_by_name(self, name):
631 632 633
        """
        returns the room that has this name
        """
634
        for tab in self.tabs:
635
            if (isinstance(tab, tabs.MucTab) or
636
                isinstance(tab, tabs.PrivateTab)) and tab.get_name() == name:
637
                return tab.get_room()
638
        return None
639

640
    def init_curses(self, stdscr):
641 642 643
        """
        ncurses initialization
        """
644
        curses.curs_set(1)
645
        curses.noecho()
646 647
        # curses.raw()
        theme.init_colors()
648
        stdscr.keypad(True)
649

650
    def reset_curses(self):
651 652 653 654 655
        """
        Reset terminal capabilities to what they were before ncurses
        init
        """
        curses.echo()
656
        curses.nocbreak()
657
        curses.endwin()
658

659 660 661 662
    def refresh_window(self):
        """
        Refresh everything
        """
663
        self.current_tab().set_color_state(theme.COLOR_TAB_CURRENT)
664
        self.current_tab().refresh(self.tabs, self.information_buffer, roster)
665
        self.doupdate()
666

667
    def add_tab(self, new_tab, focus=False):
668
        """
669 670
        Appends the new_tab in the tab list and
        focus it if focus==True
671
        """
672 673
        if self.current_tab().nb == 0:
            self.tabs.append(new_tab)
674
        else:
675 676 677
            for ta in self.tabs:
                if ta.nb == 0:
                    self.tabs.insert(self.tabs.index(ta), new_tab)
678
                    break
679
        if focus:
680
            self.command_win("%s" % new_tab.nb)
681 682 683 684 685 686 687 688

    def open_new_room(self, room, nick, focus=True):
        """
        Open a new tab.MucTab containing a muc Room, using the specified nick
        """
        r = Room(room, nick)
        new_tab = tabs.MucTab(self, r)
        self.add_tab(new_tab, focus)
689
        self.refresh_window()
690

691 692 693 694 695 696
    def go_to_roster(self):
        self.command_win('0')

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

697 698 699 700 701 702 703
    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
        """
704 705 706
        for tab in self.tabs:
            if tab.get_color_state() == theme.COLOR_TAB_PRIVATE:
                self.command_win('%s' % tab.nb)
707
                return
708 709 710
        for tab in self.tabs:
            if tab.get_color_state() == theme.COLOR_TAB_HIGHLIGHT:
                self.command_win('%s' % tab.nb)
711
                return
712 713 714
        for tab in self.tabs:
            if tab.get_color_state() == theme.COLOR_TAB_NEW_MESSAGE:
                self.command_win('%s' % tab.nb)
715
                return
716 717 718 719
        for tab in self.tabs:
            if isinstance(tab, tabs.ChatTab) and not tab.input.is_empty():
                self.command_win('%s' % tab.nb)
                return
720

721
    def rotate_rooms_right(self, args=None):
722 723 724
        """
        rotate the rooms list to the right
        """
725 726 727
        self.current_tab().on_lose_focus()
        self.tabs.append(self.tabs.pop(0))
        self.current_tab().on_gain_focus()
728
        self.refresh_window()
729

730
    def rotate_rooms_left(self, args=None):
731 732 733
        """
        rotate the rooms list to the right
        """
734 735 736
        self.current_tab().on_lose_focus()
        self.tabs.insert(0, self.tabs.pop())
        self.current_tab().on_gain_focus()
737
        self.refresh_window()
738

739
    def scroll_page_down(self, args=None):
740
        self.current_tab().on_scroll_down()
741
        self.refresh_window()
742 743

    def scroll_page_up(self, args=None):
744
        self.current_tab().on_scroll_up()
745
        self.refresh_window()
746

747
    def room_error(self, error, room_name):
748 749 750
        """
        Display the error on the room window
        """
751 752 753 754 755 756
        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:
757
            if code in list(ERROR_AND_STATUS_CODES.keys()):
758 759
                body = ERROR_AND_STATUS_CODES[code]
            else:
760 761
                body = condition or _('Unknown error')
        if code:
762 763
            msg = _('Error: %(code)s - %(msg)s: %(body)s') % {'msg':msg, 'body':body, 'code':code}
            self.add_message_to_text_buffer(room, msg)
764
        else:
765 766
            msg = _('Error: %(msg)s: %(body)s') % {'msg':msg, 'body':body}
            self.add_message_to_text_buffer(room, msg)
767
        if code == '401':
768 769
            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)
770
        if code == '409':
771 772 773
            if config.get('alternative_nickname', '') != '':
                self.command_join('%s/%s'% (room.name, room.own_nick+config.get('alternative_nickname', '')))
            else:
774
                self.add_message_to_text_buffer(room, _('You can join the room with an other nick, by typing "/join /other_nick"'))
775
        self.refresh_window()
776

777
    def open_conversation_window(self, jid, focus=True):
778 779 780
        """
        open a new conversation tab and focus it if needed
        """
781
        new_tab = tabs.ConversationTab(self, jid)
782
        # insert it in the rooms
783
        self.add_tab(new_tab, focus)
784
        self.refresh_window()
785
        return new_tab
786

787
    def open_private_window(self, room_name, user_nick, focus=True):
788
        complete_jid = room_name+'/'+user_nick
789
        for tab in self.tabs: # if the room exists, focus it and return
790
            if isinstance(tab, tabs.PrivateTab):
791 792
                if tab.get_name() == complete_jid:
                    self.command_win('%s' % tab.nb)