--- a/src/plugins/plugin_xep_0277.py	Mon Jan 22 08:36:36 2018 +0100
+++ b/src/plugins/plugin_xep_0277.py	Mon Jan 22 22:00:46 2018 +0100
@@ -31,12 +31,13 @@
 from sat.tools import sat_defer
 from sat.tools import utils
 from sat.tools.common import data_format
+from sat.tools.common import uri as xmpp_uri
 
 # XXX: sat_tmp.wokkel.pubsub is actually used instead of wokkel version
 from wokkel import pubsub
 from wokkel import disco, iwokkel
 from zope.interface import implements
-import uuid
+import shortuuid
 import time
 import dateutil
 import calendar
@@ -345,14 +346,17 @@
         defer.returnValue(microblog_data)
 
     @defer.inlineCallbacks
-    def data2entry(self, data, item_id=None, profile=C.PROF_KEY_NONE):
+    def data2entry(self, client, data, item_id, service, node):
         """Convert a data dict to en entry usable to create an item
 
         @param data: data dict as given by bridge method.
-        @param item_id(unicode, None): id of the item to use
+        @param item_id(unicode): id of the item to use
+        @param service(jid.JID, None): pubsub service where the item is sent
+            Needed to construct Atom id
+        @param node(unicode): pubsub node where the item is sent
+            Needed to construct Atom id
         @return: deferred which fire domish.Element
         """
-        client = self.host.getClient(profile)
         entry_elt = domish.Element((NS_ATOM, 'entry'))
 
         ## language ##
@@ -369,7 +373,7 @@
                     elem = entry_elt.addElement(elem_name)
                     if type_:
                         if type_ == '_rich':  # convert input from current syntax to XHTML
-                            xml_content = yield synt.convert(data[attr], synt.getCurrentSyntax(profile), "XHTML")
+                            xml_content = yield synt.convert(data[attr], synt.getCurrentSyntax(client.profile), "XHTML")
                             if '{}_xhtml'.format(elem_name) in data:
                                 raise failure.Failure(exceptions.DataError(_("Can't have xhtml and rich content at the same time")))
                         else:
@@ -442,7 +446,11 @@
             category_elt['term'] = tag
 
         ## id ##
-        entry_id = data.get('id', item_id or unicode(uuid.uuid4())) # FIXME: use a proper id (see XEP-0277 §7.1)
+        entry_id = data.get('id', xmpp_uri.buildXMPPUri(
+            u'pubsub',
+            path=service.full() if service is not None else client.jid.userhost(),
+            node=node,
+            item=item_id))
         entry_elt.addElement('id', content=entry_id) #
 
         ## comments ##
@@ -596,13 +604,13 @@
         if node is None:
             node = NS_MICROBLOG
 
-        item_id = data.get('id') or unicode(uuid.uuid4())
+        item_id = data.get('id') or unicode(shortuuid.uuid())
 
         try:
             yield self._manageComments(client, data, service, node, item_id, access=None)
         except error.StanzaError:
             log.warning(u"Can't create comments node for item {}".format(item_id))
-        item = yield self.data2entry(data, item_id, client.profile)
+        item = yield self.data2entry(client, data, item_id, service, node)
         ret = yield self._p.publish(client, service, node, [item])
         defer.returnValue(ret)