Add plugin for Google's nosave feature.

sleekxmpp/plugins/google_nosave/__init__.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.
+"""
+
+from sleekxmpp.plugins.base import register_plugin
+
+from sleekxmpp.plugins.google_nosave import stanza
+from sleekxmpp.plugins.google_nosave.nosave import GoogleNoSave
+
+
+register_plugin(GoogleNoSave)

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)

sleekxmpp/plugins/google_nosave/stanza.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.
+"""
+
+from sleekxmpp.jid import JID
+from sleekxmpp.xmlstream import ElementBase, register_stanza_plugin
+
+
+class NoSave(ElementBase):
+    name = 'x'
+    namespace = 'google:nosave'
+    plugin_attrib = 'google_nosave'
+    interfaces = set(['value'])
+
+    def get_value(self):
+        return self._get_attr('value', '') == 'enabled'
+
+    def set_value(self, value):
+        self._set_attr('value', 'enabled' if value else 'disabled')
+
+
+class NoSaveQuery(ElementBase):
+    name = 'query'
+    namespace = 'google:nosave'
+    plugin_attrib = 'google_nosave'
+    interfaces = set()
+
+
+class Item(ElementBase):
+    name = 'item'
+    namespace = 'google:nosave'
+    plugin_attrib = 'item'
+    plugin_multi_attrib = 'items'
+    interfaces = set(['jid', 'source', 'value'])
+
+    def get_value(self):
+        return self._get_attr('value', '') == 'enabled'
+
+    def set_value(self, value):
+        self._set_attr('value', 'enabled' if value else 'disabled')
+
+    def get_jid(self):
+        return JID(self._get_attr('jid', ''))
+
+    def set_jid(self, value):
+        self._set_attr('jid', str(value))
+
+    def get_source(self):
+        return JID(self._get_attr('source', ''))
+
+    def set_source(self):
+        self._set_attr('source', str(value))
+
+
+register_stanza_plugin(NoSaveQuery, Item)