Tweak replies management, improve tombstone support

activitypub.py

@@ -866,21 +866,21 @@ class Create(BaseActivity):
                     'meta.count_reply': 1,
                     'meta.count_direct_reply': direct_reply,
                 },
+                '$addToSet': {'meta.thread_children': obj.id},
             }):
                 DB.outbox.update_one({'activity.object.id': reply.id}, {
                     '$inc': {
                         'meta.count_reply': 1,
                         'meta.count_direct_reply': direct_reply,
                     },
+                    '$addToSet': {'meta.thread_children': obj.id},
                 })
 
             direct_reply = 0
             reply_id = reply.id
             reply = reply.get_local_reply()
             logger.debug(f'next_reply={reply}')
-            if reply:
+            threads.append(reply_id)
-                # Only append to threads if it's not the root
-                threads.append(reply_id)
 
         if reply_id:
             if not DB.inbox.find_one_and_update({'activity.object.id': obj.id}, {
@@ -1018,6 +1018,15 @@ class Note(BaseActivity):
         return Delete(object=Tombstone(id=self.id).to_dict(embed=True))
 
 
+    def get_tombstone(self, deleted: Optional[str]) -> BaseActivity:
+        return Tombstone(
+            id=self.id,
+            published=self.published,
+            deleted=deleted,
+            updated=updated,
+        )
+
+
 _ACTIVITY_TYPE_TO_CLS = {
     ActivityType.IMAGE: Image,
     ActivityType.PERSON: Person,

app.py

@@ -409,9 +409,11 @@ def index():
 
 @app.route('/note/<note_id>')                       
 def note_by_id(note_id):                            
-    data = DB.outbox.find_one({'id': note_id, 'meta.deleted': False})                                    
+    data = DB.outbox.find_one({'id': note_id})
     if not data:                                    
-        return Response(status=404)                 
+        abort(404)
+    if data['meta'].get('deleted', False):
+        abort(410)
 
     replies = list(DB.inbox.find({                       
         'type': 'Create',                           
@@ -570,12 +572,18 @@ def outbox():
 
 @app.route('/outbox/<item_id>')
 def outbox_detail(item_id):
-    doc = DB.outbox.find_one({'id': item_id, 'meta.deleted': False})
+    doc = DB.outbox.find_one({'id': item_id})
+    if doc['meta'].get('deleted', False):
+        obj = activitypub.parse_activity(doc['activity'])
+        resp = jsonify(**obj.get_object().get_tombstone())
+        resp.status_code = 410
+        return resp
     return jsonify(**activity_from_doc(doc))
 
 
 @app.route('/outbox/<item_id>/activity')
 def outbox_activity(item_id):
+    # TODO(tsileo): handle Tombstone
     data = DB.outbox.find_one({'id': item_id, 'meta.deleted': False})
     if not data:
         abort(404)
@@ -587,6 +595,7 @@ def outbox_activity(item_id):
 
 @app.route('/outbox/<item_id>/replies')
 def outbox_activity_replies(item_id):
+    # TODO(tsileo): handle Tombstone
     if not is_api_request():
         abort(404)
     data = DB.outbox.find_one({'id': item_id, 'meta.deleted': False})
@@ -614,6 +623,7 @@ def outbox_activity_replies(item_id):
 
 @app.route('/outbox/<item_id>/likes')
 def outbox_activity_likes(item_id):
+    # TODO(tsileo): handle Tombstone
     if not is_api_request():
         abort(404)
     data = DB.outbox.find_one({'id': item_id, 'meta.deleted': False})
@@ -642,6 +652,7 @@ def outbox_activity_likes(item_id):
 
 @app.route('/outbox/<item_id>/shares')
 def outbox_activity_shares(item_id):
+    # TODO(tsileo): handle Tombstone
     if not is_api_request():
         abort(404)
     data = DB.outbox.find_one({'id': item_id, 'meta.deleted': False})
@@ -755,7 +766,7 @@ def api_user_key():
     return flask_jsonify(api_key=ADMIN_API_KEY)
 
 
-def _user_api_arg(key: str, **kwargs: Dict[str, Any]) -> str:
+def _user_api_arg(key: str, **kwargs):
     """Try to get the given key from the requests, try JSON body, form data and query arg."""
     if request.is_json:
         oid = request.json.get(key)