core.py 56.7 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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    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':
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            return
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        # Differentiate both type of messages, and call the appropriate handler.
        jid_from = message['from']
431 432
        for tab in self.tabs:
            if isinstance(tab, MucTab) and tab.get_name() == jid_from.bare: # check all the MUC we are in
433
                if message['type'] == 'error':
434
                    return self.room_error(message, tab.get_room().name)
435 436
                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']
444
        nick_from = jid.resource
445
        room_from = jid.bare
446 447
        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
448
            room = self.open_private_window(room_from, nick_from, False)
449 450 451
            if not room:
                return
        body = message['body']
452 453
        self.add_message_to_text_buffer(room, body, None, nick_from)
        self.refresh_window()
454
        self.doupdate()
455

456 457 458 459 460
    def focus_tab_named(self, tab_name):
        for tab in self.tabs:
            if tab.get_name() == tab_name:
                self.command_win('%s' % (tab.nb,))

461 462 463 464
    def on_normal_message(self, message):
        """
        When receiving "normal" messages (from someone in our roster)
        """
465
        jid = message['from']
466 467 468
        body = message['body']
        if not body:
            return
469 470 471 472 473 474 475 476 477 478 479 480
        # 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)
            # room = self.open_conversation_window(jid, False)
        self.add_message_to_text_buffer(conversation.get_room(), body, None, jid.full)
        if self.current_tab() is not conversation:
            conversation.set_color_state(theme.COLOR_TAB_PRIVATE)
481
        self.refresh_window()
482 483 484 485 486
        return

    def on_presence(self, presence):
        """
        """
487
        jid = presence['from']
488
        contact = roster.get_contact_by_jid(jid.bare)
489 490 491 492 493 494
        if not contact:
            return
        resource = contact.get_resource_by_fulljid(jid.full)
        if not resource:
            return
        status = presence['type']
495
        status_message = presence['status']
496 497 498
        priority = presence.getPriority() or 0
        resource.set_presence(status)
        resource.set_priority(priority)
499
        resource.set_status(status_message)
500 501
        if isinstance(self.current_tab(), RosterInfoTab):
            self.refresh_window()
502

503 504 505 506 507
    def on_roster_update(self, iq):
        """
        A subscription changed, or we received a roster item
        after a roster request, etc
        """
508 509
        for item in iq.findall('{jabber:iq:roster}query/{jabber:iq:roster}item'):
            jid = item.attrib['jid']
510
            contact = roster.get_contact_by_jid(jid)
511 512
            if not contact:
                contact = Contact(jid)
513
                roster.add_contact(contact, jid)
514 515 516 517
            if 'ask' in item.attrib:
                contact.set_ask(item.attrib['ask'])
            else:
                contact.set_ask(None)
518 519 520 521
            if 'name' in item.attrib:
                contact.set_name(item.attrib['name'])
            else:
                contact.set_name(None)
522 523 524
            if item.attrib['subscription']:
                contact.set_subscription(item.attrib['subscription'])
            groups = item.findall('{jabber:iq:roster}group')
525
            roster.edit_groups_of_contact(contact, [group.text for group in groups])
526 527
        if isinstance(self.current_tab(), RosterInfoTab):
            self.refresh_window()
528

529 530 531 532 533 534 535
    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)
        """
536 537 538 539 540 541 542 543 544
        # 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()
545

546 547 548 549
    def resize_window(self):
        """
        Resize the whole screen
        """
550
        with resize_lock:
551
           # self.resize_timer = None
552 553 554
            for tab in self.tabs:
                tab.resize(self.stdscr)
            self.refresh_window()
555

556
    def main_loop(self):
557 558 559
        """
        main loop waiting for the user to press a key
        """
560
        self.refresh_window()
561
        while self.running:
562
            self.doupdate()
563
            char=read_char(self.stdscr)
564
            # search for keyboard shortcut
565
            if char in list(self.key_func.keys()):
566
                self.key_func[char]()
567
            else:
568
                self.do_command(char)
569

570
    def current_tab(self):
571 572 573
        """
        returns the current room, the one we are viewing
        """
574
        return self.tabs[0]
575

576 577 578 579 580 581 582 583 584 585
    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

586 587 588 589 590 591 592 593 594
    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

595
    def get_room_by_name(self, name):
596 597 598
        """
        returns the room that has this name
        """
599 600 601 602
        for tab in self.tabs:
            if (isinstance(tab, MucTab) or
                isinstance(tab, PrivateTab)) and tab.get_name() == name:
                return tab.get_room()
603
        return None
604

605
    def init_curses(self, stdscr):
606 607 608
        """
        ncurses initialization
        """
609
        curses.curs_set(1)
610
        curses.noecho()
611 612
        # curses.raw()
        theme.init_colors()
613
        stdscr.keypad(True)
614

615
    def reset_curses(self):
616 617 618 619 620
        """
        Reset terminal capabilities to what they were before ncurses
        init
        """
        curses.echo()
621
        curses.nocbreak()
622
        curses.endwin()
623

624 625 626 627
    def refresh_window(self):
        """
        Refresh everything
        """
628
        self.current_tab().set_color_state(theme.COLOR_TAB_CURRENT)
629
        self.current_tab().refresh(self.tabs, self.information_buffer, roster)
630
        self.doupdate()
631

632
    def open_new_room(self, room, nick, focus=True):
633
        """
634
        Open a new MucTab containing a muc Room, using the specified nick
635
        """
636
        r = Room(room, nick)
637
        new_tab = MucTab(self.stdscr, self, r)
638 639
        if self.current_tab().nb == 0:
            self.tabs.append(new_tab)
640
        else:
641 642 643
            for ta in self.tabs:
                if ta.nb == 0:
                    self.tabs.insert(self.tabs.index(ta), new_tab)
644
                    break
645
        if focus:
646
            self.command_win("%s" % new_tab.nb)
647
        self.refresh_window()
648

649 650 651 652 653 654
    def go_to_roster(self):
        self.command_win('0')

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

655 656 657 658 659 660 661
    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
        """
662 663 664
        for tab in self.tabs:
            if tab.get_color_state() == theme.COLOR_TAB_PRIVATE:
                self.command_win('%s' % tab.nb)
665
                return
666 667 668
        for tab in self.tabs:
            if tab.get_color_state() == theme.COLOR_TAB_HIGHLIGHT:
                self.command_win('%s' % tab.nb)
669
                return
670 671 672
        for tab in self.tabs:
            if tab.get_color_state() == theme.COLOR_TAB_NEW_MESSAGE:
                self.command_win('%s' % tab.nb)
673
                return
674

675
    def rotate_rooms_right(self, args=None):
676 677 678
        """
        rotate the rooms list to the right
        """
679 680 681
        self.current_tab().on_lose_focus()
        self.tabs.append(self.tabs.pop(0))
        self.current_tab().on_gain_focus()
682
        self.refresh_window()
683

684
    def rotate_rooms_left(self, args=None):
685 686 687
        """
        rotate the rooms list to the right
        """
688 689 690
        self.current_tab().on_lose_focus()
        self.tabs.insert(0, self.tabs.pop())
        self.current_tab().on_gain_focus()
691
        self.refresh_window()
692

693
    def scroll_page_down(self, args=None):
694
        self.current_tab().on_scroll_down()
695
        self.refresh_window()
696 697

    def scroll_page_up(self, args=None):
698
        self.current_tab().on_scroll_up()
699
        self.refresh_window()
700

701
    def room_error(self, error, room_name):
702 703 704
        """
        Display the error on the room window
        """
705 706 707 708 709 710
        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:
711
            if code in list(ERROR_AND_STATUS_CODES.keys()):
712 713
                body = ERROR_AND_STATUS_CODES[code]
            else:
714 715
                body = condition or _('Unknown error')
        if code:
716 717
            msg = _('Error: %(code)s - %(msg)s: %(body)s') % {'msg':msg, 'body':body, 'code':code}
            self.add_message_to_text_buffer(room, msg)
718
        else:
719 720
            msg = _('Error: %(msg)s: %(body)s') % {'msg':msg, 'body':body}
            self.add_message_to_text_buffer(room, msg)
721
        if code == '401':
722 723
            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)
724
        if code == '409':
725 726 727
            if config.get('alternative_nickname', '') != '':
                self.command_join('%s/%s'% (room.name, room.own_nick+config.get('alternative_nickname', '')))
            else:
728
                self.add_message_to_text_buffer(room, _('You can join the room with an other nick, by typing "/join /other_nick"'))
729
        self.refresh_window()
730

731
    def open_conversation_window(self, jid, focus=True):
732 733 734
        """
        open a new conversation tab and focus it if needed
        """
735 736
        text_buffer = TextBuffer()
        new_tab = ConversationTab(self.stdscr, self, text_buffer, jid)
737 738 739 740 741 742 743 744 745 746 747
        # 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()
748
        return new_tab
749

750
    def open_private_window(self, room_name, user_nick, focus=True):
751
        complete_jid = room_name+'/'+user_nick
752 753 754 755
        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)
756 757
                    return
        # create the new tab
758
        room = self.get_room_by_name(room_name)
759 760 761
        if not room:
            return None
        own_nick = room.own_nick
762
        r = Room(complete_jid, own_nick) # PrivateRoom here
763
        new_tab = PrivateTab(self.stdscr, self, r)
764
        # insert it in the tabs
765 766
        if self.current_tab().nb == 0:
            self.tabs.append(new_tab)
767
        else:
768 769 770
            for ta in self.tabs:
                if ta.nb == 0:
                    self.tabs.insert(self.tabs.index(ta), new_tab)
771 772
                    break
        if focus:               # focus the room if needed
773
            self.command_win('%s' % (new_tab.nb))
774
        # self.window.new_room(r)
775
        self.refresh_window()
776 777
        return r

778 779 780 781 782 783 784 785 786 787
    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
788
        self.add_message_to_text_buffer(room, _("%(nick)s set the subject to: %(subject)s") % {'nick':nick_from, 'subject':subject}, time=None)
789 790 791
        room.topic = subject.replace('\n', '|')
        self.refresh_window()

792
    def on_groupchat_message(self, message):
793
        """
794
        Triggered whenever a message is received from a multi-user chat room.
795
        """
796 797
        delay_tag = message.find('{urn:xmpp:delay}delay')
        if delay_tag is not None:
798
            delayed = True
799
            date = common.datetime_tuple(delay_tag.attrib['stamp'])
800
        else:
801 802
            # We support the OLD and deprecated XEP: http://xmpp.org/extensions/xep-0091.html
            # But it sucks, please, Jabber servers, don't do this :(
803 804
            delay_tag = message.find('{jabber:x:delay}x')
            if delay_tag is not None