store home page URL in update profile Objects, render better in activities UI

fixes #407

pages.py

@@ -207,12 +207,15 @@ def fetch_objects(query, user):
                    or inner_obj.get('displayName')
                    or inner_obj.get('summary'))
         url = util.get_first(inner_obj, 'url') or inner_obj.get('id')
-        if url:
+        if (obj.domains and
-            content = common.pretty_link(url, text=content, user=user)
+              inner_obj.get('id', '').strip('/') == f'https://{obj.domains[0]}'):
-        elif (obj.domains and
-              obj_as1.get('id', '').strip('/') == f'https://{obj.domains[0]}'):
             obj.phrase = 'updated'
-            obj_as1['content'] = 'their profile'
+            obj_as1.update({
+                'content': 'their profile',
+                'url': f'https://{obj.domains[0]}',
+            })
+        elif url:
+            content = common.pretty_link(url, text=content, user=user)
 
         obj.content = (obj_as1.get('content')
                        or obj_as1.get('displayName')

tests/test_webmention.py

@@ -1102,10 +1102,12 @@ class WebmentionTest(testutil.TestCase):
         ))
 
         id = 'https://orig/#update-2022-01-02T03:04:05+00:00'
+        wrapped_id = f'http://localhost/r/{id}'
         self.assert_deliveries(mock_post, ('https://shared/inbox', 'https://inbox'), {
             '@context': 'https://www.w3.org/ns/activitystreams',
             'type': 'Update',
-            'id': f'http://localhost/r/{id}',
+            'id': wrapped_id,
+            'url': wrapped_id,
             'actor': 'http://localhost/orig',
             'object': {
                 **ACTOR_AS2_FULL,
@@ -1116,6 +1118,7 @@ class WebmentionTest(testutil.TestCase):
 
         expected_as1 = {
             'id': id,
+            'url': id,
             'objectType': 'activity',
             'verb': 'update',
             'object': ACTOR_AS1_UNWRAPPED,

webmention.py

@@ -63,12 +63,14 @@ class Webmention(View):
                 'objectType': 'activity',
                 'verb': 'update',
                 'id': id,
+                'url': id,
                 'object': actor_as1,
             }
             self.source_as2 = common.postprocess_as2({
                 '@context': 'https://www.w3.org/ns/activitystreams',
                 'type': 'Update',
-                'id': common.host_url(f'{source}#update-{util.now().isoformat()}'),
+                'id': id,
+                'url': id,
                 'object': actor_as2,
             }, user=self.user)
             return self.try_activitypub() or 'No ActivityPub targets'