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path: root/sleekxmpp/plugins/google/nosave/nosave.py
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"""
    SleekXMPP: The Sleek XMPP Library
    Copyright (C) 2013 Nathanael C. Fritz, Lance J.T. Stout
    This file is part of SleekXMPP.

    See the file LICENSE for copying permission.
"""

import logging

from sleekxmpp.stanza import Iq, Message
from sleekxmpp.xmlstream.handler import Callback
from sleekxmpp.xmlstream.matcher import StanzaPath
from sleekxmpp.xmlstream import register_stanza_plugin
from sleekxmpp.plugins import BasePlugin
from sleekxmpp.plugins.google.nosave import stanza


log = logging.getLogger(__name__)


class GoogleNoSave(BasePlugin):

    """
    Google: Off the Record Chats

    NOTE: This is NOT an encryption method.

    Also see <https://developers.google.com/talk/jep_extensions/otr>.
    """

    name = 'google_nosave'
    description = 'Google: Off the Record Chats'
    dependencies = set(['google_settings'])
    stanza = stanza

    def plugin_init(self):
        register_stanza_plugin(Message, stanza.NoSave)
        register_stanza_plugin(Iq, stanza.NoSaveQuery)

        self.xmpp.register_handler(
                Callback('Google Nosave',
                    StanzaPath('iq@type=set/google_nosave'),
                    self._handle_nosave_change))

    def plugin_end(self):
        self.xmpp.remove_handler('Google Nosave')

    def enable(self, jid=None, block=True, timeout=None, callback=None):
        if jid is None:
            self.xmpp['google_settings'].update({'archiving_enabled': False},
                    block=block, timeout=timeout, callback=callback)
        else:
            iq = self.xmpp.Iq()
            iq['type'] = 'set'
            iq['google_nosave']['item']['jid'] = jid
            iq['google_nosave']['item']['value'] = True
            return iq.send(block=block, timeout=timeout, callback=callback)

    def disable(self, jid=None, block=True, timeout=None, callback=None):
        if jid is None:
            self.xmpp['google_settings'].update({'archiving_enabled': True},
                    block=block, timeout=timeout, callback=callback)
        else:
            iq = self.xmpp.Iq()
            iq['type'] = 'set'
            iq['google_nosave']['item']['jid'] = jid
            iq['google_nosave']['item']['value'] = False
            return iq.send(block=block, timeout=timeout, callback=callback)

    def get(self, block=True, timeout=None, callback=None):
        iq = self.xmpp.Iq()
        iq['type'] = 'get'
        iq.enable('google_nosave')
        return iq.send(block=block, timeout=timeout, callback=callback)

    def _handle_nosave_change(self, iq):
        reply = self.xmpp.Iq()
        reply['type'] = 'result'
        reply['id'] = iq['id']
        reply['to'] = iq['from']
        reply.send()
        self.xmpp.event('google_nosave_change', iq)