1 files changed, 104 insertions, 0 deletions
diff --git a/sleekxmpp/plugins/xep_0153/vcard_avatar.py b/sleekxmpp/plugins/xep_0153/vcard_avatar.py
new file mode 100644
index 00000000..e8d9ea6a
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0153/vcard_avatar.py
@@ -0,0 +1,104 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Copyright (C) 2012 Nathanael C. Fritz, Lance J.T. Stout
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
+import hashlib
+import logging
+
+from sleekxmpp.stanza import Presence
+from sleekxmpp.xmlstream import register_stanza_plugin
+from sleekxmpp.xmlstream.matcher import StanzaPath
+from sleekxmpp.xmlstream.handler import Callback
+from sleekxmpp.plugins.base import BasePlugin
+from sleekxmpp.plugins.xep_0153 import stanza, VCardTempUpdate
+
+
+log = logging.getLogger(__name__)
+
+
+class XEP_0153(BasePlugin):
+
+    name = 'xep_0153'
+    description = 'XEP-0153: vCard-Based Avatars'
+    dependencies = set(['xep_0054'])
+    stanza = stanza
+
+    def plugin_init(self):
+        self._hashes = {}
+
+        register_stanza_plugin(Presence, VCardTempUpdate)
+
+        self.xmpp.add_filter('out', self._update_presence)
+
+        self.xmpp.add_event_handler('session_start', self._start)
+
+        self.xmpp.add_event_handler('presence_available', self._recv_presence)
+        self.xmpp.add_event_handler('presence_dnd', self._recv_presence)
+        self.xmpp.add_event_handler('presence_xa', self._recv_presence)
+        self.xmpp.add_event_handler('presence_chat', self._recv_presence)
+        self.xmpp.add_event_handler('presence_away', self._recv_presence)
+
+        self.api.register(self._set_hash, 'set_hash', default=True)
+        self.api.register(self._get_hash, 'get_hash', default=True)
+
+    def set_avatar(self, jid=None, avatar=None, mtype=None, block=True, 
+                   timeout=None, callback=None):
+        vcard = self.xmpp['xep_0054'].get_vcard(jid, cached=True)
+        vcard = vcard['vcard_temp']
+        vcard['PHOTO']['TYPE'] = mtype
+        vcard['PHOTO']['BINVAL'] = avatar
+        self.xmpp['xep_0054'].publish_vcard(jid=jid, vcard=vcard)
+        self._reset_hash(jid)
+
+    def _start(self, event):
+        self.xmpp['xep_0054'].get_vcard()
+
+    def _update_presence(self, stanza):
+        if not isinstance(stanza, Presence):
+            return stanza
+
+        current_hash = self.api['get_hash'](stanza['from'])
+        stanza['vcard_temp_update']['photo'] = current_hash
+        return stanza
+
+    def _reset_hash(self, jid=None):
+        own_jid = jid.bare == self.xmpp.boundjid.bare
+        if self.xmpp.is_component:
+            own_jid = jid.domain = self.xmpp.boundjid.domain
+     
+        if jid is not None:
+            jid = jid.bare
+        self.api['set_hash'](jid, args=None)
+        if own_jid:
+            self.xmpp.roster[jid].send_last_presence()
+        iq = self.xmpp['xep_0054'].get_vcard(jid=jid, ifrom=jid)
+        data = iq['vcard_temp']['PHOTO']['BINVAL']
+        if not data:
+            new_hash = ''
+        else:
+            new_hash = hashlib.sha1(data).hexdigest()
+        self.api['set_hash'](jid, args=new_hash)
+        if own_jid:
+            self.xmpp.roster[jid].send_last_presence()
+
+    def _recv_presence(self, pres):
+        if not pres.match('presence/vcard_temp_update'):
+            self.api['set_hash'](pres['from'], args=None)
+            return
+        data = pres['vcard_temp_update']['photo']
+        if data is None:
+            return
+        elif data == '' or data != self.api['get_hash'](pres['to']):
+            self._reset_hash(pres['from'])
+
+    # =================================================================
+
+    def _get_hash(self, jid, node, ifrom, args):
+        return self._hashes.get(jid.bare, None)
+
+    def _set_hash(self, jid, node, ifrom, args):
+        self._hashes[jid.bare] = args