# Slixmpp: The Slick XMPP Library
# Copyright (C) 2013 Nathanael C. Fritz, Lance J.T. Stout
# This file is part of slixmpp.
# See the file LICENSE for copying permission.
from slixmpp.xmlstream import register_stanza_plugin
from slixmpp.plugins import BasePlugin
from slixmpp.plugins.google.auth import stanza


class GoogleAuth(BasePlugin):

    """
    Google: Auth Extensions (JID Domain Discovery, OAuth2)

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

    name = 'google_auth'
    description = 'Google: Auth Extensions (JID Domain Discovery, OAuth2)'
    dependencies = set(['feature_mechanisms'])
    stanza = stanza

    def plugin_init(self):
        self.xmpp.namespace_map['http://www.google.com/talk/protocol/auth'] = 'ga'

        register_stanza_plugin(self.xmpp['feature_mechanisms'].stanza.Auth,
                               stanza.GoogleAuth)

        self.xmpp.add_filter('out', self._auth)

    def plugin_end(self):
        self.xmpp.del_filter('out', self._auth)

    def _auth(self, stanza):
        if isinstance(stanza, self.xmpp['feature_mechanisms'].stanza.Auth):
            stanza.stream = self.xmpp
            stanza['google']['client_uses_full_bind_result'] = True
            if stanza['mechanism'] == 'X-OAUTH2':
                stanza['google']['service'] = 'oauth2'
            print(stanza)
        return stanza