core, plugins: host.getClient now raise an exception instead of returning None when no profile is found, plugins have been adapted consequently and a bit cleaned

src/plugins/plugin_misc_groupblog.py

@@ -154,9 +154,6 @@ class GroupBlog(object):
             raise exceptions.ProfileUnknownError
 
         client = self.host.getClient(profile)
-        if not client:
-            error(_('No client for this profile key: %s') % profile_key)
-            raise Exception("Unknown profile")
         yield client.client_initialized  # we want to be sure that the client is initialized
 
         #we first check that we have a item-access pubsub server
@@ -309,7 +306,7 @@ class GroupBlog(object):
             # FIXME: check comments node creation success, at the moment this is a potential security risk (if the node
             #        already exists, the creation will silently fail, but the comments link will stay the same, linking to a
             #        node owned by somebody else)
-            defer_blog = self.host.plugins["XEP-0060"].createNode(service, comments_node, _options, profile_key=client.profile)
+            self.host.plugins["XEP-0060"].createNode(service, comments_node, _options, profile_key=client.profile)
 
         def itemCreated(mblog_item):
             form = data_form.Form('submit', formNamespace=NS_PUBSUB_ITEM_CONFIG)