From 7fd6153720746edff4af900dc9c3579d3cde6e32 Mon Sep 17 00:00:00 2001
From: "louiz@4325f9fc-e183-4c21-96ce-0ab188b42d13"
 <louiz@4325f9fc-e183-4c21-96ce-0ab188b42d13>
Date: Tue, 9 Nov 2010 20:37:39 +0000
Subject: fix some little issues. Rename gui to core, use logging lib instead
 of the custom debug option. Add a -d option

---
 src/core.py | 1398 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 1398 insertions(+)
 create mode 100644 src/core.py

(limited to 'src/core.py')

diff --git a/src/core.py b/src/core.py
new file mode 100644
index 00000000..23bc3ed4
--- /dev/null
+++ b/src/core.py
@@ -0,0 +1,1398 @@
+# Copyright 2010 Le Coz Florent <louiz@louiz.org>
+#
+# 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/>.
+
+from gettext import (bindtextdomain, textdomain, bind_textdomain_codeset,
+                     gettext as _)
+from os.path import isfile
+
+from time import sleep
+
+import os
+import re
+import sys
+import shlex
+import curses
+import threading
+import webbrowser
+
+from datetime import datetime
+
+import common
+import theme
+
+import multiuserchat as muc
+from connection import connection
+from handler import Handler
+from config import config
+from tab import MucTab, InfoTab, PrivateTab, RosterInfoTab, ConversationTab
+from user import User
+from room import Room
+from roster import Roster, RosterGroup, roster
+from contact import Contact, Resource
+from message import Message
+from text_buffer import TextBuffer
+from keyboard import read_char
+from common import jid_get_domain, is_jid
+
+# http://xmpp.org/extensions/xep-0045.html#errorstatus
+ERROR_AND_STATUS_CODES = {
+    '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'),
+    }
+
+SHOW_NAME = {
+    'dnd': _('busy'),
+    'away': _('away'),
+    'xa': _('not available'),
+    'chat': _('chatty'),
+    '': _('available')
+    }
+
+resize_lock = threading.Lock()
+
+class Core(object):
+    """
+    User interface using ncurses
+    """
+    def __init__(self, xmpp):
+        self.running = True
+        self.stdscr = curses.initscr()
+        self.init_curses(self.stdscr)
+        self.xmpp = xmpp
+        default_tab = InfoTab(self.stdscr, self, "Info") if self.xmpp.anon\
+            else RosterInfoTab(self.stdscr, self)
+        default_tab.on_gain_focus()
+        self.tabs = [default_tab]
+        # self.roster = Roster()
+        # 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
+        self.ignores = {}
+        self.resize_timer = None
+        self.previous_tab_nb = 0
+
+        self.commands = {
+            'help': (self.command_help, '\_o< KOIN KOIN KOIN'),
+            '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")),
+            '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.")),
+            '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.")),
+            'part': (self.command_part, _("Usage: /part [message]\n Part: disconnect from a room. You can specify an optional message.")),
+            '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")),
+            '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)")),
+            'unquery': (self.command_unquery, _("Usage: /unquery\nClose the private conversation window")),
+            '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")),
+            '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.")),
+            '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')),
+            '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 "/"')),
+            'whois': (self.command_whois, _('Usage: /whois <nickname>\nWhois: Request many informations about the user.')),
+            'theme': (self.command_theme, _('Usage: /theme\nTheme: Reload the theme defined in the config file.')),
+            '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.')),
+            }
+
+        self.key_func = {
+            "KEY_PPAGE": self.scroll_page_up,
+            "KEY_NPAGE": self.scroll_page_down,
+            "KEY_F(5)": self.rotate_rooms_left,
+            "^P": self.rotate_rooms_left,
+            "KEY_F(6)": self.rotate_rooms_right,
+            "KEY_F(7)": self.shrink_information_win,
+            "KEY_F(8)": self.grow_information_win,
+            "^N": self.rotate_rooms_right,
+            "KEY_RESIZE": self.call_for_resize,
+            'M-e': self.go_to_important_room,
+            'M-r': self.go_to_roster,
+            'M-z': self.go_to_previous_tab,
+            'M-v': self.move_separator,
+            }
+
+        # 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)
+        self.xmpp.add_event_handler("message", self.on_message)
+        self.xmpp.add_event_handler("got_online" , self.on_got_online)
+        self.xmpp.add_event_handler("got_offline" , self.on_got_offline)
+        self.xmpp.add_event_handler("roster_update", self.on_roster_update)
+        self.xmpp.add_event_handler("changed_status", self.on_presence)
+
+        # self.__debug_fill_roster()
+
+    def grow_information_win(self):
+        """
+        """
+        if self.information_win_size == 14:
+            return
+        self.information_win_size += 1
+        for tab in self.tabs:
+            tab.on_info_win_size_changed(self.stdscr)
+        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:
+            tab.on_info_win_size_changed(self.stdscr)
+        self.refresh_window()
+
+    def on_got_offline(self, presence):
+        jid = presence['from']
+        contact = roster.get_contact_by_jid(jid.bare)
+        if not contact:
+            return
+        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()
+
+    def on_got_online(self, presence):
+        jid = presence['from']
+        contact = roster.get_contact_by_jid(jid.bare)
+        if not contact:
+            # Todo, handle presence comming from contacts not in roster
+            return
+        resource = contact.get_resource_by_fulljid(jid.full)
+        assert not resource
+        resource = Resource(jid.full)
+        status = presence['type']
+        priority = presence.getPriority() or 0
+        resource.set_presence(status)
+        resource.set_priority(priority)
+        contact.add_resource(resource)
+        self.information("%s is online (%s)" % (resource.get_jid().full, status), "Roster")
+
+    def on_connected(self, event):
+        """
+        Called when we are connected and authenticated
+        """
+        self.information(_("Welcome on Poezio \o/!"))
+        self.information(_("Your JID is %s") % self.xmpp.boundjid.full)
+
+        if not self.xmpp.anon:
+            # request the roster
+            self.xmpp.getRoster()
+            # send initial presence
+            self.xmpp.makePresence(pfrom=self.xmpp.boundjid.bare).send()
+        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
+            self.open_new_room(roomname, nick, False)
+            muc.join_groupchat(self.xmpp, roomname, nick)
+        # if not self.xmpp.anon:
+        # 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
+        room = self.get_room_by_name(from_room)
+        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)
+        if not room:
+            return
+        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)
+                if from_nick == room.own_nick:
+                    room.joined = True
+                    new_user.color = theme.COLOR_OWN_NICK
+                    self.add_message_to_text_buffer(room, _("Your nickname is %s") % (from_nick))
+                    if '170' in status_codes:
+                        self.add_message_to_text_buffer(room, 'Warning: this room is publicly logged')
+        else:
+            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:
+                self.on_user_nick_change(room, presence, user, from_nick, from_room)
+            # kick
+            elif kick:
+                self.on_user_kicked(room, presence, user, from_nick)
+            # user quit
+            elif typ == 'unavailable':
+                self.on_user_leave_groupchat(room, user, jid, status, from_nick, from_room)
+            # status change
+            else:
+                self.on_user_change_status(room, user, from_nick, from_room, affiliation, role, show, status)
+        self.refresh_window()
+        self.doupdate()
+
+    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:
+                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)
+            else:
+                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)
+
+    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
+            for _tab in self.tabs:
+                if isinstance(_tab, PrivateTab) and _tab.get_name().split('/', 1)[0] == room.name:
+                    _tab.get_room().own_nick = new_nick
+        user.change_nick(new_nick)
+        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)
+        # rename the private tabs if needed
+        private_room = self.get_room_by_name('%s/%s' % (from_room, from_nick))
+        if private_room:
+            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)
+            new_jid = private_room.name.split('/', 1)[0]+'/'+new_nick
+            private_room.name = new_jid
+
+    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')
+        by = by.attrib['jid'] if by is not None else None
+        reason = reason.text if reason else ''
+        if from_nick == room.own_nick: # we are kicked
+            room.disconnect()
+            if by:
+                kick_msg = _('%(spec)s [You] have been kicked by "[%(by)s]"') % {'spec': theme.CHAR_KICK.replace('"', '\\"'), 'by':by}
+            else:
+                kick_msg = _('%(spec)s [You] have been kicked.') % {'spec':theme.CHAR_KICK.replace('"', '\\"')}
+            # try to auto-rejoin
+            if config.get('autorejoin', 'false') == 'true':
+                muc.join_groupchat(self.xmpp, room.name, room.own_nick)
+        else:
+            if by:
+                kick_msg = _('%(spec)s "[%(nick)s]" has been kicked by "[%(by)s]"') % {'spec':theme.CHAR_KICK.replace('"', '\\"'), 'nick':from_nick.replace('"', '\\"'), 'by':by.replace('"', '\\"')}
+            else:
+                kick_msg = _('%(spec)s "[%(nick)s]" has been kicked') % {'spec':theme.CHAR_KICK, 'nick':from_nick.replace('"', '\\"')}
+        if reason:
+            kick_msg += _(' Reason: %(reason)s') % {'reason': reason}
+        self.add_message_to_text_buffer(room, kick_msg, colorized=True)
+
+    def on_user_leave_groupchat(self, room, user, jid, status, from_nick, from_room):
+        """
+        When an user leaves a groupchat
+        """
+        room.users.remove(user)
+        if room.own_nick == user.nick:
+            # We are now out of the room. Happens with some buggy (? not sure) servers
+            room.disconnect()
+        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:
+                leave_msg = _('%(spec)s "[%(nick)s]" has left the room') % {'nick':from_nick.replace('"', '\\"'), 'spec':theme.CHAR_QUIT.replace('"', '\\"')}
+            else:
+                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('"', '\\"')}
+            if status:
+                leave_msg += ' (%s)' % status
+            self.add_message_to_text_buffer(room, leave_msg, colorized=True)
+        private_room = self.get_room_by_name('%s/%s' % (from_room, from_nick))
+        if private_room:
+            if not status:
+                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)
+            else:
+                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)
+
+    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
+        display_message = False # flag to know if something significant enough
+        # to be displayed has changed
+        msg = _('"%s" changed: ')% from_nick.replace('"', '\\"')
+        if affiliation != user.affiliation:
+            msg += _('affiliation: %s, ') % affiliation
+            display_message = True
+        if role != user.role:
+            msg += _('role: %s, ') % role
+            display_message = True
+        if show != user.show and show in list(SHOW_NAME.keys()):
+            msg += _('show: %s, ') % SHOW_NAME[show]
+            display_message = True
+        if status and status != user.status:
+            msg += _('status: %s, ') % status
+            display_message = True
+        if not display_message:
+            return
+        msg = msg[:-2] # remove the last ", "
+        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
+            self.add_message_to_text_buffer(room, msg, colorized=True)
+        private_room = self.get_room_by_name('%s/%s' % (from_room, from_nick))
+        if private_room: # display the message in private
+            self.add_message_to_text_buffer(private_room, msg, colorized=True)
+        # finally, effectively change the user status
+        user.update(affiliation, show, status, role)
+
+    def on_message(self, message):
+        """
+        When receiving private message from a muc OR a normal message
+        (from one of our contacts)
+        """
+        if message['type'] == 'groupchat':
+            return None
+        # Differentiate both type of messages, and call the appropriate handler.
+        jid_from = message['from']
+        for tab in self.tabs:
+            if isinstance(tab, MucTab) and tab.get_name() == jid_from.bare: # check all the MUC we are in
+                if message['type'] == 'error':
+                    return self.room_error(message, tab.get_room().name)
+                else:
+                    return self.on_groupchat_private_message(message)
+        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']
+        nick_from = jid.resource
+        room_from = jid.bare
+        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
+            room = self.open_private_window(room_from, nick_from, False)
+            if not room:
+                return
+        body = message['body']
+        self.add_message_to_text_buffer(room, body, None, nick_from)
+        self.refresh_window()
+        self.doupdate()
+
+    def focus_tab_named(self, tab_name):
+        for tab in self.tabs:
+            if tab.get_name() == tab_name:
+                self.command_win('%s' % (tab.nb,))
+
+    def on_normal_message(self, message):
+        """
+        When receiving "normal" messages (from someone in our roster)
+        """
+        jid = message['from'].bare
+        room = self.get_conversation_by_jid(jid)
+        body = message['body']
+        if not body:
+            return
+        if not room:
+            room = self.open_conversation_window(jid, False)
+            if not room:
+                return
+        self.add_message_to_text_buffer(room, body, None, jid)
+        self.refresh_window()
+        return
+
+    def on_presence(self, presence):
+        """
+        """
+        jid = presence['from']
+        contact = roster.get_contact_by_jid(jid.bare)
+        if not contact:
+            return
+        resource = contact.get_resource_by_fulljid(jid.full)
+        if not resource:
+            return
+        status = presence['type']
+        priority = presence.getPriority() or 0
+        resource.set_presence(status)
+        resource.set_priority(priority)
+        if isinstance(self.current_tab(), RosterInfoTab):
+            self.refresh_window()
+
+    def __debug_fill_roster(self):
+        for i in range(10):
+            jid = 'contact%s@fion%s.org'%(i,i)
+            contact = Contact(jid)
+            contact.set_ask('wat')
+            contact.set_subscription('both')
+            roster.add_contact(contact, jid)
+            contact.set_name('%s %s fion'%(i,i))
+            roster.edit_groups_of_contact(contact, ['hello'])
+        for i in range(10):
+            jid = 'test%s@bernard%s.org'%(i,i)
+            contact = Contact(jid)
+            contact.set_ask('wat')
+            contact.set_subscription('both')
+            roster.add_contact(contact, jid)
+            contact.set_name('%s test'%(i))
+            roster.edit_groups_of_contact(contact, ['hello'])
+        for i in range(10):
+            jid = 'pouet@top%s.org'%(i)
+            contact = Contact(jid)
+            contact.set_ask('wat')
+            contact.set_subscription('both')
+            roster.add_contact(contact, jid)
+            contact.set_name('%s oula'%(i))
+            roster.edit_groups_of_contact(contact, ['hello'])
+        if isinstance(self.current_tab(), RosterInfoTab):
+            self.refresh_window()
+
+    def on_roster_update(self, iq):
+        """
+        A subscription changed, or we received a roster item
+        after a roster request, etc
+        """
+        for item in iq.findall('{jabber:iq:roster}query/{jabber:iq:roster}item'):
+            jid = item.attrib['jid']
+            contact = roster.get_contact_by_jid(jid)
+            if not contact:
+                contact = Contact(jid)
+                roster.add_contact(contact, jid)
+            if 'ask' in item.attrib:
+                contact.set_ask(item.attrib['ask'])
+            else:
+                contact.set_ask(None)
+            if 'name' in item.attrib:
+                contact.set_name(item.attrib['name'])
+            else:
+                contact.set_name(None)
+            if item.attrib['subscription']:
+                contact.set_subscription(item.attrib['subscription'])
+            groups = item.findall('{jabber:iq:roster}group')
+            roster.edit_groups_of_contact(contact, [group.text for group in groups])
+        if isinstance(self.current_tab(), RosterInfoTab):
+            self.refresh_window()
+
+    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)
+        """
+        # 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()
+
+    def resize_window(self):
+        """
+        Resize the whole screen
+        """
+        with resize_lock:
+           # self.resize_timer = None
+            for tab in self.tabs:
+                tab.resize(self.stdscr)
+            self.refresh_window()
+
+    def main_loop(self):
+        """
+        main loop waiting for the user to press a key
+        """
+        self.refresh_window()
+        while self.running:
+            self.doupdate()
+            char=read_char(self.stdscr)
+            # search for keyboard shortcut
+            if char in list(self.key_func.keys()):
+                self.key_func[char]()
+            else:
+                self.do_command(char)
+
+    def current_tab(self):
+        """
+        returns the current room, the one we are viewing
+        """
+        return self.tabs[0]
+
+    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
+
+    def get_room_by_name(self, name):
+        """
+        returns the room that has this name
+        """
+        for tab in self.tabs:
+            if (isinstance(tab, MucTab) or
+                isinstance(tab, PrivateTab)) and tab.get_name() == name:
+                return tab.get_room()
+        return None
+
+    def init_curses(self, stdscr):
+        """
+        ncurses initialization
+        """
+        curses.curs_set(1)
+        curses.noecho()
+        # curses.raw()
+        theme.init_colors()
+        stdscr.keypad(True)
+
+    def reset_curses(self):
+        """
+        Reset terminal capabilities to what they were before ncurses
+        init
+        """
+        curses.echo()
+        curses.nocbreak()
+        curses.endwin()
+
+    def refresh_window(self):
+        """
+        Refresh everything
+        """
+        self.current_tab().set_color_state(theme.COLOR_TAB_CURRENT)
+        self.current_tab().refresh(self.tabs, self.information_buffer, roster)
+        self.doupdate()
+
+    def open_new_room(self, room, nick, focus=True):
+        """
+        Open a new MucTab containing a muc Room, using the specified nick
+        """
+        r = Room(room, nick)
+        new_tab = MucTab(self.stdscr, self, r)
+        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:
+            self.command_win("%s" % new_tab.nb)
+        self.refresh_window()
+
+    def go_to_roster(self):
+        self.command_win('0')
+
+    def go_to_previous_tab(self):
+        self.command_win('%s' % (self.previous_tab_nb,))
+
+    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
+        """
+        for tab in self.tabs:
+            if tab.get_color_state() == theme.COLOR_TAB_PRIVATE:
+                self.command_win('%s' % tab.nb)
+                return
+        for tab in self.tabs:
+            if tab.get_color_state() == theme.COLOR_TAB_HIGHLIGHT:
+                self.command_win('%s' % tab.nb)
+                return
+        for tab in self.tabs:
+            if tab.get_color_state() == theme.COLOR_TAB_NEW_MESSAGE:
+                self.command_win('%s' % tab.nb)
+                return
+
+    def rotate_rooms_right(self, args=None):
+        """
+        rotate the rooms list to the right
+        """
+        self.current_tab().on_lose_focus()
+        self.tabs.append(self.tabs.pop(0))
+        self.current_tab().on_gain_focus()
+        self.refresh_window()
+
+    def rotate_rooms_left(self, args=None):
+        """
+        rotate the rooms list to the right
+        """
+        self.current_tab().on_lose_focus()
+        self.tabs.insert(0, self.tabs.pop())
+        self.current_tab().on_gain_focus()
+        self.refresh_window()
+
+    def scroll_page_down(self, args=None):
+        self.current_tab().on_scroll_down()
+        self.refresh_window()
+
+    def scroll_page_up(self, args=None):
+        self.current_tab().on_scroll_up()
+        self.refresh_window()
+
+    def room_error(self, error, room_name):
+        """
+        Display the error on the room window
+        """
+        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:
+            if code in list(ERROR_AND_STATUS_CODES.keys()):
+                body = ERROR_AND_STATUS_CODES[code]
+            else:
+                body = condition or _('Unknown error')
+        if code:
+            msg = _('Error: %(code)s - %(msg)s: %(body)s') % {'msg':msg, 'body':body, 'code':code}
+            self.add_message_to_text_buffer(room, msg)
+        else:
+            msg = _('Error: %(msg)s: %(body)s') % {'msg':msg, 'body':body}
+            self.add_message_to_text_buffer(room, msg)
+        if code == '401':
+            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)
+        if code == '409':
+            if config.get('alternative_nickname', '') != '':
+                self.command_join('%s/%s'% (room.name, room.own_nick+config.get('alternative_nickname', '')))
+            else:
+                self.add_message_to_text_buffer(room, _('You can join the room with an other nick, by typing "/join /other_nick"'))
+        self.refresh_window()
+
+    def open_conversation_window(self, room_name, focus=True):
+        """
+        open a new conversation tab and focus it if needed
+        """
+        r = Room(room_name, self.xmpp.boundjid.full)
+        new_tab = ConversationTab(self.stdscr, self, r)
+        # 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.window.new_room(r)
+        self.refresh_window()
+        return r
+
+    def open_private_window(self, room_name, user_nick, focus=True):
+        complete_jid = room_name+'/'+user_nick
+        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)
+                    return
+        # create the new tab
+        room = self.get_room_by_name(room_name)
+        if not room:
+            return None
+        own_nick = room.own_nick
+        r = Room(complete_jid, own_nick) # PrivateRoom here
+        new_tab = PrivateTab(self.stdscr, self, r)
+        # insert it in the tabs
+        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.window.new_room(r)
+        self.refresh_window()
+        return r
+
+    def on_groupchat_message(self, message):
+        """
+        Triggered whenever a message is received from a multi-user chat room.
+        """
+        delay_tag = message.find('{urn:xmpp:delay}delay')
+        if delay_tag is not None:
+            delayed = True
+            date = common.datetime_tuple(delay_tag.attrib['stamp'])
+        else:
+            # We support the OLD and deprecated XEP: http://xmpp.org/extensions/xep-0091.html
+            # But it sucks, please, Jabber servers, don't do this :(
+            delay_tag = message.find('{jabber:x:delay}x')
+            if delay_tag is not None:
+                delayed = True
+                date = common.datetime_tuple(delay_tag.attrib['stamp'])
+            else:
+                delayed = False
+                date = None
+        nick_from = message['mucnick']
+        room_from = message.getMucroom()
+        if message['type'] == 'error': # Check if it's an error
+            return self.room_error(message, from_room)
+        if nick_from == room_from:
+            nick_from = None
+        room = self.get_room_by_name(room_from)
+        if (room_from in self.ignores) and (nick_from in self.ignores[room_from]):
+            return
+        room = self.get_room_by_name(room_from)
+        if not room:
+            self.information(_("message received for a non-existing room: %s") % (room_from))
+            return
+        body = message['body']
+        subject = message['subject']
+        if subject:
+            if nick_from:
+                self.add_message_to_text_buffer(room, _("%(nick)s changed the subject to: %(subject)s") % {'nick':nick_from, 'subject':subject}, time=date)
+            else:
+                self.add_message_to_text_buffer(room, _("The subject is: %(subject)s") % {'subject':subject}, time=date)
+            room.topic = subject.replace('\n', '|')
+        elif body:
+            date = date if delayed == True else None
+            self.add_message_to_text_buffer(room, body, date, nick_from)
+        self.refresh_window()
+        self.doupdate()
+
+    def add_message_to_text_buffer(self, room, txt, time=None, nickname=None, colorized=False):
+        """
+        Add the message to the room if possible, else, add it to the Info window
+        (in the Info tab of the info window in the RosterTab)
+        """
+        if not room:
+            self.information('Error, trying to add a message in no room: %s' % txt)
+        else:
+            room.add_message(txt, time, nickname, colorized)
+        self.refresh_window()
+
+    def command_help(self, arg):
+        """
+        /help <command_name>
+        """
+        args = arg.split()
+        if len(args) == 0:
+            msg = _('Available commands are: ')
+            for command in list(self.commands.keys()):
+                msg += "%s " % command
+            msg += _("\nType /help <command_name> to know what each command does")
+        if len(args) >= 1:
+            if args[0] in list(self.commands.keys()):
+                msg = self.commands[args[0]][1]
+            else:
+                msg = _('Unknown command: %s') % args[0]
+        self.information(msg)
+
+    def command_whois(self, arg):
+        """
+        /whois <nickname>
+        """
+        # TODO
+        return
+        # check shlex here
+        try:
+            args = shlex.split(arg)
+        except ValueError as error:
+            return self.information(str(error), _("Error"))
+        room = self.current_room()
+        if len(args) != 1:
+            self.add_message_to_text_buffer(room, _('whois command takes exactly one argument'))
+            return
+        # check if current room is a MUC
+        if room.jid or room.name == 'Info':
+            return
+        nickname = args[0]
+        self.muc.request_vcard(room.name, nickname)
+
+    def command_theme(self, arg):
+        """
+        """
+        theme.reload_theme()
+        self.resize_window()
+
+    def command_recolor(self, arg):
+        """
+        Re-assign color to the participants of the room
+        """
+        tab = self.current_tab()
+        if not isinstance(tab, MucTab):
+            return
+        room = tab.get_room()
+        i = 0
+        compare_users = lambda x: x.last_talked
+        users = list(room.users)
+        # search our own user, to remove it from the room
+        for user in users:
+            if user.nick == room.own_nick:
+                users.remove(user)
+        nb_color = len(theme.LIST_COLOR_NICKNAMES)
+        for user in sorted(users, key=compare_users, reverse=True):
+            user.color = theme.LIST_COLOR_NICKNAMES[i % nb_color]
+            i+= 1
+        self.refresh_window()
+
+    def command_win(self, arg):
+        """
+        /win <number>
+        """
+        args = arg.split()
+        if len(args) != 1:
+            self.command_help('win')
+            return
+        try:
+            nb = int(args[0])
+        except ValueError:
+            self.command_help('win')
+            return
+        if self.current_tab().nb == nb:
+            return
+        self.previous_tab_nb = self.current_tab().nb
+        self.current_tab().on_lose_focus()
+        start = self.current_tab()
+        self.tabs.append(self.tabs.pop(0))
+        while self.current_tab().nb != nb:
+            self.tabs.append(self.tabs.pop(0))
+            if self.current_tab() == start:
+                self.current_tab().set_color_state(theme.COLOR_TAB_CURRENT)
+                self.refresh_window()
+                return
+        self.current_tab().on_gain_focus()
+        self.refresh_window()
+
+    def command_kick(self, arg):
+        """
+        /kick <nick> [reason]
+        """
+        try:
+            args = shlex.split(arg)
+        except ValueError as error:
+            return self.information(str(error), _("Error"))
+        if len(args) < 1:
+            self.command_help('kick')
+            return
+        nick = args[0]
+        if len(args) >= 2:
+            reason = ' '.join(args[1:])
+        else:
+            reason = ''
+        if not isinstance(self.current_tab(), MucTab) or not self.current_tab().get_room().joined:
+            return
+        roomname = self.current_tab().get_name()
+        res = muc.eject_user(self.xmpp, roomname, nick, reason)
+        if res['type'] == 'error':
+            self.room_error(res, roomname)
+
+    def command_join(self, arg):
+        """
+        /join [room][/nick] [password]
+        """
+        args = arg.split()
+        password = None
+        if len(args) == 0:
+            t = self.current_tab()
+            if not isinstance(t, MucTab) and not isinstance(t, PrivateTab):
+                return
+            room = t.get_name()
+            nick = t.get_room().own_nick
+        else:
+            info = args[0].split('/')
+            if len(info) == 1:
+                default = os.environ.get('USER') if os.environ.get('USER') else 'poezio'
+                nick = config.get('default_nick', '')
+                if nick == '':
+                    nick = default
+            else:
+                nick = info[1]
+            if info[0] == '':   # happens with /join /nickname, which is OK
+                t = self.current_tab()
+                if not isinstance(t, MucTab):
+                    return
+                room = t.get_name()
+                if nick == '':
+                    nick = t.get_room().own_nick
+            else:
+                room = info[0]
+            if not is_jid(room): # no server is provided, like "/join hello"
+                # use the server of the current room if available
+                # check if the current room's name has a server
+                if isinstance(self.current_tab(), MucTab) and\
+                        is_jid(self.current_tab().get_name()):
+                    room += '@%s' % jid_get_domain(self.current_tab().get_name())
+                else:           # no server could be found, print a message and return
+                    self.information(_("You didn't specify a server for the room you want to join"), 'Error')
+                    return
+        r = self.get_room_by_name(room)
+        if len(args) == 2:       # a password is provided
+            password = args[1]
+        if r and r.joined:       # if we are already in the room
+            self.focus_tab_named(r.name)
+            return
+        room = room.lower()
+        if r and not r.joined:
+            muc.join_groupchat(self.xmpp, room, nick, password)
+        if not r:   # if the room window exists, we don't recreate it.
+            self.open_new_room(room, nick)
+            muc.join_groupchat(self.xmpp, room, nick, password)
+        else:
+            r.own_nick = nick
+            r.users = []
+
+    def command_bookmark(self, arg):
+        """
+        /bookmark [room][/nick]
+        """
+        args = arg.split()
+        nick = None
+        if not isinstance(self.current_tab(), MucTab):
+            return
+        if len(args) == 0:
+            room = self.current_tab().get_room()
+            roomname = self.current_tab().get_name()
+            if room.joined:
+                nick = room.own_nick
+        else:
+            info = args[0].split('/')
+            if len(info) == 2:
+                nick = info[1]
+            roomname = info[0]
+            if roomname == '':
+                roomname = self.current_tab().get_name()
+        if nick:
+            res = roomname+'/'+nick
+        else:
+            res = roomname
+        bookmarked = config.get('rooms', '')
+        # check if the room is already bookmarked.
+        # if yes, replace it (i.e., update the associated nick)
+        bookmarked = bookmarked.split(':')
+        for room in bookmarked:
+            if room.split('/')[0] == roomname:
+                bookmarked.remove(room)
+                break
+        bookmarked = ':'.join(bookmarked)
+        if bookmarked:
+            bookmarks = bookmarked+':'+res
+        else:
+            bookmarks = res
+        config.set_and_save('rooms', bookmarks)
+        self.information(_('Your bookmarks are now: %s') % bookmarks)
+
+    def command_set(self, arg):
+        """
+        /set <option> [value]
+        """
+        args = arg.split()
+        if len(args) != 2 and len(args) != 1:
+            self.command_help('set')
+            return
+        option = args[0]
+        if len(args) == 2:
+            value = args[1]
+        else:
+            value = ''
+        config.set_and_save(option, value)
+        msg = "%s=%s" % (option, value)
+        self.information(msg)
+
+    def command_show(self, arg):
+        """
+        /show <status> [msg]
+        """
+        args = arg.split()
+        possible_show = {'avail':None,
+                         'available':None,
+                         'ok':None,
+                         'here':None,
+                         'chat':'chat',
+                         'away':'away',
+                         'afk':'away',
+                         'dnd':'dnd',
+                         'busy':'dnd',
+                         'xa':'xa'
+                         }
+        if len(args) < 1:
+            return
+        if not args[0] in list(possible_show.keys()):
+            self.command_help('show')
+            return
+        show = possible_show[args[0]]
+        if len(args) > 1:
+            msg = ' '.join(args[1:])
+        else:
+            msg = None
+        for tab in self.tabs:
+            if isinstance(tab, MucTab) and tab.get_room().joined:
+                muc.change_show(self.xmpp, tab.get_room().name, tab.get_room().own_nick, show, msg)
+
+    def command_ignore(self, arg):
+        """
+        /ignore <nick>
+        """
+        try:
+            args = shlex.split(arg)
+        except ValueError as error:
+            return self.information(str(error), _("Error"))
+        if len(args) != 1:
+            self.command_help('ignore')
+            return
+        if not isinstance(self.current_tab(), MucTab):
+            return
+        roomname = self.current_tab().get_name()
+        nick = args[0]
+        if roomname not in self.ignores:
+            self.ignores[roomname] = set() # no need for any order
+        if nick not in self.ignores[roomname]:
+            self.ignores[roomname].add(nick)
+            self.information(_("%s is now ignored") % nick, 'info')
+        else:
+            self.information(_("%s is alread ignored") % nick, 'info')
+
+    def command_unignore(self, arg):
+        """
+        /unignore <nick>
+        """
+        try:
+            args = shlex.split(arg)
+        except ValueError as error:
+            return self.information(str(error), _("Error"))
+        if len(args) != 1:
+            self.command_help('unignore')
+            return
+        if not isinstance(self.current_tab(), MucTab):
+            return
+        roomname = self.current_tab().get_name()
+        nick = args[0]
+        if roomname not in self.ignores or (nick not in self.ignores[roomname]):
+            self.information(_("%s was not ignored") % nick, info)
+            return
+        self.ignores[roomname].remove(nick)
+        if not self.ignores[roomname]:
+            del self.ignores[roomname]
+        self.information(_("%s is now unignored") % nick, 'info')
+
+    def command_away(self, arg):
+        """
+        /away [msg]
+        """
+        self.command_show("away "+arg)
+
+    def command_busy(self, arg):
+        """
+        /busy [msg]
+        """
+        self.command_show("busy "+arg)
+
+    def command_avail(self, arg):
+        """
+        /avail [msg]
+        """
+        self.command_show("available "+arg)
+
+    def command_part(self, arg):
+        """
+        /part [msg]
+        """
+        args = arg.split()
+        reason = None
+        if not isinstance(self.current_tab(), MucTab) and\
+                not isinstance(self.current_tab(), PrivateTab):
+            return
+        room = self.current_tab().get_room()
+        if len(args):
+            msg = ' '.join(args)
+        else:
+            msg = None
+        if isinstance(self.current_tab(), MucTab) and\
+                self.current_tab().get_room().joined:
+            muc.leave_groupchat(self.xmpp, room.name, room.own_nick, arg)
+        self.tabs.remove(self.current_tab())
+        self.refresh_window()
+
+    def command_unquery(self, arg):
+        """
+        /unquery
+        """
+        tab = self.current_tab()
+        if isinstance(tab, PrivateTab):
+            self.tabs.remove(tab)
+            self.refresh_window()
+
+    def command_query(self, arg):
+        """
+        /query <nick> [message]
+        """
+        try:
+            args = shlex.split(arg)
+        except ValueError as error:
+            return self.information(str(error), _("Error"))
+        if len(args) < 1 or not isinstance(self.current_tab(), MucTab):
+            return
+        nick = args[0]
+        room = self.current_tab().get_room()
+        r = None
+        for user in room.users:
+            if user.nick == nick:
+                r = self.open_private_window(room.name, user.nick)
+        if r and len(args) > 1:
+            msg = arg[len(nick)+1:]
+            muc.send_private_message(self.xmpp, r.name, msg)
+            self.add_message_to_text_buffer(r, msg, None, r.own_nick)
+
+    def command_topic(self, arg):
+        """
+        /topic [new topic]
+        """
+        if not isinstance(self.current_tab(), MucTab):
+            return
+        room = self.current_tab().get_room()
+        if not arg.strip():
+            self.add_message_to_text_buffer(room, _("The subject of the room is: %s") % room.topic)
+            return
+        subject = arg
+        muc.change_subject(self.xmpp, room.name, subject)
+
+    def command_link(self, arg):
+        """
+        /link <option> <nb>
+        Opens the link in a browser, or join the room, or add the JID, or
+        copy it in the clipboard
+        """
+        if not isinstance(self.current_tab(), MucTab) and\
+                not isinstance(self.current_tab(), PrivateTab):
+            return
+        args = arg.split()
+        if len(args) > 2:
+            # INFO
+            # self.add_message_to_text_buffer(self.current_room(),
+            #                          _("Link: This command takes at most 2 arguments"))
+            return
+        # set the default parameters
+        option = "open"
+        nb = 0
+        # check the provided parameters
+        if len(args) >= 1:
+            try:  # check if the argument is the number
+                nb = int(args[0])
+            except ValueError:  # nope, it's the option
+                option = args[0]
+        if len(args) == 2:
+            try:
+                nb = int(args[0])
+            except ValueError:
+                # INFO
+                # self.add_message_to_text_buffer(self.current_room(),
+                #                          _("Link: 2nd parameter should be a number"))
+                return
+        # find the nb-th link in the current buffer
+        i = 0
+        link = None
+        for msg in self.current_tab().get_room().messages[:-200:-1]:
+            if not msg:
+                continue
+            matches = re.findall('"((ftp|http|https|gopher|mailto|news|nntp|telnet|wais|file|prospero|aim|webcal):(([A-Za-z0-9$_.+!*(),;/?:@&~=-])|%[A-Fa-f0-9]{2}){2,}(#([a-zA-Z0-9][a-zA-Z0-9$_.+!*(),;/?:@&~=%-]*))?([A-Za-z0-9$_+!*();/?:~-]))"', msg.txt)
+            for m in matches:
+                if i == nb:
+                    url = m[0]
+                    self.link_open(url)
+                    return
+
+    def url_open(self, url):
+        """
+        Use webbrowser to open the provided link
+        """
+        webbrowser.open(url)
+
+    def move_separator(self):
+        """
+        Move the new-messages separator at the bottom on the current
+        text.
+        """
+        try:
+            room = self.current_tab().get_room()
+        except:
+            return
+        room.remove_line_separator()
+        room.add_line_separator()
+        self.refresh_window()
+
+    def command_nick(self, arg):
+        """
+        /nick <nickname>
+        """
+        try:
+            args = shlex.split(arg)
+        except ValueError as error:
+            return self.information(str(error), _("Error"))
+        if not isinstance(self.current_tab(), MucTab):
+            return
+        if len(args) != 1:
+            return
+        nick = args[0]
+        room = self.current_tab().get_room()
+        if not room.joined or room.name == "Info":
+            return
+        muc.change_nick(self.xmpp, room.name, nick)
+
+    def information(self, msg, typ=''):
+        """
+        Displays an informational message in the "Info" room window
+        """
+        self.information_buffer.add_message(msg, nickname=typ)
+        self.refresh_window()
+
+    def command_quit(self, arg):
+        """
+        /quit
+        """
+        if len(arg.strip()) != 0:
+            msg = arg
+        else:
+            msg = None
+        for tab in self.tabs:
+            if isinstance(tab, MucTab):
+                muc.leave_groupchat(self.xmpp, tab.get_room().name, tab.get_room().own_nick, msg)
+        self.xmpp.disconnect()
+        self.running = False
+        self.reset_curses()
+
+    def do_command(self, key):
+        if not key:
+            return
+        res = self.current_tab().on_input(key)
+        if not res:
+            return
+        if key in ('^J', '\n') and isinstance(res, str):
+            self.execute(res)
+        else :
+            # we did "enter" with an empty input in the roster
+            self.on_roster_enter_key(res)
+
+    def on_roster_enter_key(self, roster_row):
+        """
+        when enter is pressed on the roster window
+        """
+        if isinstance(roster_row, Contact):
+            # roster_row.toggle_folded()
+            if not self.get_conversation_by_jid(roster_row.get_bare_jid()):
+                self.open_conversation_window(roster_row.get_bare_jid())
+            else:
+                self.focus_tab_named(roster_row.get_bare_jid())
+        if isinstance(roster_row, Resource):
+            if not self.get_conversation_by_jid(roster_row.get_jid().full):
+                self.open_conversation_window(roster_row.get_jid().full)
+            else:
+                self.focus_tab_named(roster_row.get_jid().full)
+        self.refresh_window()
+
+    def execute(self,line):
+        """
+        Execute the /command or just send the line on the current room
+        """
+        if line == "":
+            return
+        if line.startswith('//'):
+            self.command_say(line[1:])
+        elif line.startswith('/') and not line.startswith('/me '):
+            command = line.strip()[:].split()[0][1:]
+            arg = line[2+len(command):] # jump the '/' and the ' '
+            # example. on "/link 0 open", command = "link" and arg = "0 open"
+            if command in list(self.commands.keys()):
+                func = self.commands[command][0]
+                func(arg)
+                return
+            else:
+                self.information(_("unknown command (%s)") % (command), _('Error'))
+        else:
+            self.command_say(line)
+
+    def command_say(self, line):
+        if isinstance(self.current_tab(), PrivateTab):
+            muc.send_private_message(self.xmpp, self.current_tab().get_name(), line)
+        elif isinstance(self.current_tab(), ConversationTab): # todo, special case
+            muc.send_private_message(self.xmpp, self.current_tab().get_name(), line)
+        if isinstance(self.current_tab(), PrivateTab) or\
+                isinstance(self.current_tab(), ConversationTab):
+            self.add_message_to_text_buffer(self.current_tab().get_room(), line, None, self.current_tab().get_room().own_nick)
+        elif isinstance(self.current_tab(), MucTab):
+            muc.send_groupchat_message(self.xmpp, self.current_tab().get_name(), line)
+        self.doupdate()
+
+    def doupdate(self):
+        self.current_tab().just_before_refresh()
+        curses.doupdate()
+
+# # global core object
+core = Core(connection)
+
-- 
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