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path: root/poezio/tabs/privatetab.py
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"""
Module for the PrivateTab

A PrivateTab is a private conversation opened with someone from a MUC
(see muctab.py). The conversation happens with both JID being relative
to the MUC (room@server/nick1 and room@server/nick2).

This tab references his parent room, and is modified to keep track of
both participant’s nicks. It also has slightly different features than
the ConversationTab (such as tab-completion on nicks from the room).

"""
import logging
log = logging.getLogger(__name__)

import curses

from poezio.tabs import OneToOneTab, MucTab, Tab

from poezio import fixes
from poezio import windows
from poezio import xhtml
from poezio.common import safeJID
from poezio.config import config
from poezio.decorators import refresh_wrapper
from poezio.logger import logger
from poezio.theming import get_theme, dump_tuple
from poezio.decorators import command_args_parser

class PrivateTab(OneToOneTab):
    """
    The tab containg a private conversation (someone from a MUC)
    """
    message_type = 'chat'
    plugin_commands = {}
    additional_informations = {}
    plugin_keys = {}
    def __init__(self, core, name, nick):
        OneToOneTab.__init__(self, core, name)
        self.own_nick = nick
        self.name = name
        self.text_win = windows.TextWin()
        self._text_buffer.add_window(self.text_win)
        self.info_header = windows.PrivateInfoWin()
        self.input = windows.MessageInput()
        # keys
        self.key_func['^I'] = self.completion
        # commands
        self.register_command('info', self.command_info,
                desc='Display some information about the user in the MUC: its/his/her role, affiliation, status and status message.',
                shortdesc='Info about the user.')
        self.register_command('unquery', self.command_unquery,
                shortdesc='Close the tab.')
        self.register_command('close', self.command_unquery,
                shortdesc='Close the tab.')
        self.register_command('version', self.command_version,
                desc='Get the software version of the current interlocutor (usually its XMPP client and Operating System).',
                shortdesc='Get the software version of a jid.')
        self.resize()
        self.parent_muc = self.core.get_tab_by_name(safeJID(name).bare, MucTab)
        self.on = True
        self.update_commands()
        self.update_keys()

    def remote_user_color(self):
        user = self.parent_muc.get_user_by_name(safeJID(self.name).resource)
        if user:
            return dump_tuple(user.color);
        return super().remote_user_color()

    @property
    def general_jid(self):
        return self.name

    def get_dest_jid(self):
        return self.name

    @property
    def nick(self):
        return self.get_nick()

    @staticmethod
    def add_information_element(plugin_name, callback):
        """
        Lets a plugin add its own information to the PrivateInfoWin
        """
        PrivateTab.additional_informations[plugin_name] = callback

    @staticmethod
    def remove_information_element(plugin_name):
        del PrivateTab.additional_informations[plugin_name]

    def load_logs(self, log_nb):
        logs = logger.get_logs(safeJID(self.name).full.replace('/', '\\'), log_nb)
        return logs

    def log_message(self, txt, nickname, time=None, typ=1):
        """
        Log the messages in the archives.
        """
        if not logger.log_message(self.name, nickname, txt, date=time, typ=typ):
            self.core.information('Unable to write in the log file', 'Error')

    def on_close(self):
        super().on_close()
        self.parent_muc.privates.remove(self)

    def completion(self):
        """
        Called when Tab is pressed, complete the nickname in the input
        """
        if self.complete_commands(self.input):
            return

        # If we are not completing a command or a command's argument, complete a nick
        compare_users = lambda x: x.last_talked
        word_list = [user.nick for user in sorted(self.parent_muc.users, key=compare_users, reverse=True)\
                         if user.nick != self.own_nick]
        after = config.get('after_completion') + ' '
        input_pos = self.input.pos
        if ' ' not in self.input.get_text()[:input_pos] or (self.input.last_completion and\
                     self.input.get_text()[:input_pos] == self.input.last_completion + after):
            add_after = after
        else:
            add_after = ''
        self.input.auto_completion(word_list, add_after, quotify=False)
        empty_after = self.input.get_text() == '' or (self.input.get_text().startswith('/') and not self.input.get_text().startswith('//'))
        self.send_composing_chat_state(empty_after)

    @command_args_parser.raw
    def command_say(self, line, attention=False, correct=False):
        if not self.on:
            return
        msg = self.core.xmpp.make_message(self.name)
        msg['type'] = 'chat'
        msg['body'] = line
        # trigger the event BEFORE looking for colors.
        # This lets a plugin insert \x19xxx} colors, that will
        # be converted in xhtml.
        self.core.events.trigger('private_say', msg, self)
        if not msg['body']:
            self.cancel_paused_delay()
            self.text_win.refresh()
            self.input.refresh()
            return
        user = self.parent_muc.get_user_by_name(self.own_nick)
        replaced = False
        if correct or msg['replace']['id']:
            msg['replace']['id'] = self.last_sent_message['id']
            if config.get_by_tabname('group_corrections', self.name):
                try:
                    self.modify_message(msg['body'], self.last_sent_message['id'], msg['id'],
                            user=user, jid=self.core.xmpp.boundjid, nickname=self.own_nick)
                    replaced = True
                except:
                    log.error('Unable to correct a message', exc_info=True)
        else:
            del msg['replace']

        if msg['body'].find('\x19') != -1:
            msg.enable('html')
            msg['html']['body'] = xhtml.poezio_colors_to_html(msg['body'])
            msg['body'] = xhtml.clean_text(msg['body'])
        if (config.get_by_tabname('send_chat_states', self.general_jid) and
                self.remote_wants_chatstates is not False):
            needed = 'inactive' if self.inactive else 'active'
            msg['chat_state'] = needed
        if attention and self.remote_supports_attention:
            msg['attention'] = True
        self.core.events.trigger('private_say_after', msg, self)
        if not msg['body']:
            self.cancel_paused_delay()
            self.text_win.refresh()
            self.input.refresh()
            return
        if not replaced:
            self.add_message(msg['body'],
                    nickname=self.own_nick or self.core.own_nick,
                    forced_user=user,
                    nick_color=get_theme().COLOR_OWN_NICK,
                    identifier=msg['id'],
                    jid=self.core.xmpp.boundjid,
                    typ=1)

        self.last_sent_message = msg
        if self.remote_supports_receipts:
            msg._add_receipt = True
        msg.send()
        self.cancel_paused_delay()
        self.text_win.refresh()
        self.input.refresh()

    @command_args_parser.ignored
    def command_unquery(self):
        """
        /unquery
        """
        self.core.close_tab(self)

    @command_args_parser.quoted(0, 1)
    def command_version(self, args):
        """
        /version
        """
        def callback(res):
            if not res:
                return self.core.information('Could not get the software version from %s' % (jid,), 'Warning')
            version = '%s is running %s version %s on %s' % (jid,
                                                             res.get('name') or 'an unknown software',
                                                             res.get('version') or 'unknown',
                                                             res.get('os') or 'an unknown platform')
            self.core.information(version, 'Info')
        if args:
            return self.core.command.version(args[0])
        jid = safeJID(self.name)
        fixes.get_version(self.core.xmpp, jid,
                callback=callback)

    @command_args_parser.quoted(0, 1)
    def command_info(self, arg):
        """
        /info
        """
        if arg and arg[0]:
            self.parent_muc.command_info(arg[0])
        else:
            user = safeJID(self.name).resource
            self.parent_muc.command_info(user)

    def resize(self):
        self.need_resize = False

        if self.size.tab_degrade_y:
            info_win_height = 0
            tab_win_height = 0
        else:
            info_win_height = self.core.information_win_size
            tab_win_height = Tab.tab_win_height()

        self.text_win.resize(self.height - 2 - info_win_height - tab_win_height,
                             self.width, 0, 0)
        self.text_win.rebuild_everything(self._text_buffer)
        self.info_header.resize(1, self.width,
                                self.height - 2 - info_win_height
                                    - tab_win_height,
                                0)
        self.input.resize(1, self.width, self.height-1, 0)

    def refresh(self):
        if self.need_resize:
            self.resize()
        log.debug('  TAB   Refresh: %s', self.__class__.__name__)
        display_info_win = not self.size.tab_degrade_y

        self.text_win.refresh()
        self.info_header.refresh(self.name, self.text_win, self.chatstate,
                                 PrivateTab.additional_informations)
        if display_info_win:
            self.info_win.refresh()

        self.refresh_tab_win()
        self.input.refresh()

    def refresh_info_header(self):
        self.info_header.refresh(self.name, self.text_win, self.chatstate, PrivateTab.additional_informations)
        self.input.refresh()

    def get_nick(self):
        return safeJID(self.name).resource

    def on_input(self, key, raw):
        if not raw and key in self.key_func:
            self.key_func[key]()
            return False
        self.input.do_command(key, raw=raw)
        if not self.on:
            return False
        empty_after = self.input.get_text() == '' or (self.input.get_text().startswith('/') and not self.input.get_text().startswith('//'))
        tab = self.core.get_tab_by_name(safeJID(self.name).bare, MucTab)
        if tab and tab.joined:
            self.send_composing_chat_state(empty_after)
        return False

    def on_lose_focus(self):
        if self.input.text:
            self.state = 'nonempty'
        else:
            self.state = 'normal'

        self.text_win.remove_line_separator()
        self.text_win.add_line_separator(self._text_buffer)
        tab = self.core.get_tab_by_name(safeJID(self.name).bare, MucTab)
        if tab and tab.joined and config.get_by_tabname('send_chat_states',
                self.general_jid) and not self.input.get_text() and self.on:
            self.send_chat_state('inactive')
        self.check_scrolled()

    def on_gain_focus(self):
        self.state = 'current'
        curses.curs_set(1)
        tab = self.core.get_tab_by_name(safeJID(self.name).bare, MucTab)
        if tab and tab.joined and config.get_by_tabname('send_chat_states',
                self.general_jid,) and not self.input.get_text() and self.on:
            self.send_chat_state('active')

    def on_info_win_size_changed(self):
        if self.core.information_win_size >= self.height-3:
            return
        self.text_win.resize(self.height-2-self.core.information_win_size - Tab.tab_win_height(), self.width, 0, 0)
        self.info_header.resize(1, self.width, self.height-2-self.core.information_win_size - Tab.tab_win_height(), 0)

    def get_text_window(self):
        return self.text_win

    @refresh_wrapper.conditional
    def rename_user(self, old_nick, user):
        """
        The user changed her nick in the corresponding muc: update the tab’s name and
        display a message.
        """
        self.add_message('\x19%(nick_col)s}%(old)s\x19%(info_col)s} is now '
                         'known as \x19%(nick_col)s}%(new)s' % {
                             'old':old_nick, 'new': user.nick,
                             'nick_col': dump_tuple(user.color),
                             'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT)},
                         typ=2)
        new_jid = safeJID(self.name).bare+'/'+user.nick
        self.name = new_jid
        return self.core.current_tab() is self

    @refresh_wrapper.conditional
    def user_left(self, status_message, user):
        """
        The user left the associated MUC
        """
        self.deactivate()
        if config.get_by_tabname('display_user_color_in_join_part', self.general_jid):
            color = dump_tuple(user.color)
        else:
            color = dump_tuple(get_theme().COLOR_REMOTE_USER)

        if not status_message:
            self.add_message('\x19%(quit_col)s}%(spec)s \x19%(nick_col)s}'
                             '%(nick)s\x19%(info_col)s} has left the room' % {
                                 'nick': user.nick, 'spec': get_theme().CHAR_QUIT,
                                 'nick_col': color,
                                 'quit_col': dump_tuple(get_theme().COLOR_QUIT_CHAR),
                                 'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT)},
                             typ=2)
        else:
            self.add_message('\x19%(quit_col)s}%(spec)s \x19%(nick_col)s}'
                             '%(nick)s\x19%(info_col)s} has left the room'
                             ' (%(status)s)' % { 'status': status_message,
                                 'nick': user.nick, 'spec': get_theme().CHAR_QUIT,
                                 'nick_col': color,
                                 'quit_col': dump_tuple(get_theme().COLOR_QUIT_CHAR),
                                 'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT)},
                             typ=2)
        return self.core.current_tab() is self

    @refresh_wrapper.conditional
    def user_rejoined(self, nick):
        """
        The user (or at least someone with the same nick) came back in the MUC
        """
        self.activate()
        self.check_features()
        tab = self.parent_muc
        color = dump_tuple(get_theme().COLOR_REMOTE_USER)
        if tab and config.get_by_tabname('display_user_color_in_join_part',
                                         self.general_jid):
            user = tab.get_user_by_name(nick)
            if user:
                color = dump_tuple(user.color)
        self.add_message('\x19%(join_col)s}%(spec)s \x19%(color)s}%(nick)s\x19'
                         '%(info_col)s} joined the room' % {'nick':nick,
                             'color': color, 'spec':get_theme().CHAR_JOIN,
                             'join_col': dump_tuple(get_theme().COLOR_JOIN_CHAR),
                             'info_col': dump_tuple(get_theme().COLOR_INFORMATION_TEXT)},
                         typ=2)
        return self.core.current_tab() is self

    def activate(self, reason=None):
        self.on = True
        if reason:
            self.add_message(txt=reason, typ=2)

    def deactivate(self, reason=None):
        self.on = False
        self.remote_wants_chatstates = None
        if reason:
            self.add_message(txt=reason, typ=2)

    def matching_names(self):
        return [(3, safeJID(self.name).resource), (4, self.name)]

    def add_error(self, error_message):
        error = '\x19%s}%s\x19o' % (dump_tuple(get_theme().COLOR_CHAR_NACK),
                                    error_message)
        self.add_message(error, highlight=True, nickname='Error',
                         nick_color=get_theme().COLOR_ERROR_MSG, typ=2)
        self.core.refresh_window()