[WIP] More work on the ActivityPub module

little_boxes/__init__.py

@@ -0,0 +1,12 @@
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+def strtobool(s: str) -> bool:
+    if s in ['y', 'yes', 'true', 'on', '1']:
+        return True
+    if s in ['n', 'no', 'false', 'off', '0']:
+        return False
+
+    raise ValueError(f'cannot convert {s} to bool')

little_boxes/activitypub.py

@@ -9,7 +9,7 @@ from enum import Enum
 from .errors import BadActivityError
 from .errors import UnexpectedActivityTypeError
 from .errors import NotFromOutboxError
-from . import utils
+from .utils import parse_collection
 from .remote_object import OBJECT_FETCHER
 
 from typing import List
@@ -109,6 +109,84 @@ def _get_actor_id(actor: ObjectOrIDType) -> str:
     return actor
 
 
+class Actions(object):
+    def outbox_is_blocked(self, actor_id: str) -> bool:
+        return False
+
+    def inbox_get_by_iri(self, iri: str) -> 'BaseActivity':
+        pass
+
+    def inbox_new(self, activity: 'BaseActivity') -> None:
+        pass
+
+    def activity_url(self, obj_id: str) -> str:
+        # from the random hex ID
+        return 'TODO'
+
+    def outbox_new(self, activity: 'BaseActivity') -> None:
+        pass
+
+    def new_follower(self, actor: 'Person') -> None:
+        pass
+
+    def undo_new_follower(self, actor: 'Person') -> None:
+        pass
+
+    def new_following(self, actor: 'Person') -> None:
+        pass
+
+    def undo_new_following(self, actor: 'Person') -> None:
+        pass
+
+    def post_to_remote_inbox(self, payload: ObjectType, recp: str) -> None:
+        pass
+
+    def is_from_outbox(self, activity: 'BaseActivity') -> None:
+        pass
+
+    def inbox_like(self, activity: 'Like') -> None:
+        pass
+
+    def inbox_undo_like(self, activity: 'Like') -> None:
+        pass
+
+    def outbox_like(self, activity: 'Like') -> None:
+        pass
+
+    def outbox_undo_like(self, activity: 'Lke') -> None:
+        pass
+
+    def inbox_announce(self, activity: 'Announce') -> None:
+        pass
+
+    def inbox_undo_announce(self, activity: 'Announce') -> None:
+        pass
+
+    def outbox_announce(self, activity: 'Announce') -> None:
+        pass
+
+    def outbox_undo_announce(self, activity: 'Announce') -> None:
+        pass
+
+    def inbox_delete(self, activity: 'Delete') -> None:
+        pass
+
+    def outbox_delete(self, activity: 'Delete') -> None:
+        pass
+
+    def inbox_update(self, activity: 'Update') -> None:
+        pass
+
+    def outbox_update(self, activity: 'Update') -> None:
+        pass
+
+    def inbox_create(self, activity: 'Create') -> None:
+        pass
+
+    def outbox_create(self, activity: 'Create') -> None:
+        pass
+
+
 class _ActivityMeta(type):
     """Metaclass for keeping track of subclass."""
     def __new__(meta, name, bases, class_dict):
@@ -119,16 +197,16 @@ class _ActivityMeta(type):
             raise ValueError(f'class {name} has no ACTIVITY_TYPE')
 
         # Register it
-        _REGISTER[cls.ACTIVITY_TYPE] = cls
+        _ACTIVITY_CLS[cls.ACTIVITY_TYPE] = cls
         return cls
 
 
-class _BaseActivity(object, metaclass=_ActivityMeta):
+class BaseActivity(object, metaclass=_ActivityMeta):
     """Base class for ActivityPub activities."""
 
     ACTIVITY_TYPE: Optional[ActivityType] = None  # the ActivityTypeEnum the class will represent
     OBJECT_REQUIRED = False  # Whether the object field is required or note
-    ALLOWED_OBJECT_TYPES: List[ActivityType] = []  # 
+    ALLOWED_OBJECT_TYPES: List[ActivityType] = []
     ACTOR_REQUIRED = True  # Most of the object requires an actor, so this flag in on by default
 
     def __init__(self, **kwargs) -> None:
@@ -139,7 +217,7 @@ class _BaseActivity(object, metaclass=_ActivityMeta):
         self._data: Dict[str, Any] = {
             'type': self.ACTIVITY_TYPE.value
         }
-        logger.debug(f'initializing a {self.ACTIVITY_TYPE.value} activity: {kwargs}')
+        logger.debug(f'initializing a {self.ACTIVITY_TYPE.value} activity: {kwargs!r}')
 
         # The id may not be present for new activities
         if 'id' in kwargs:
@@ -187,7 +265,7 @@ class _BaseActivity(object, metaclass=_ActivityMeta):
         else:
             self._data['@context'].append({'Hashtag': 'as:Hashtag', 'sensitive': 'as:sensitive'})
 
-        # FIXME(tsileo): keys required for all subclasses?
+        # FIXME(tsileo): keys required for some subclasses?
         allowed_keys = None
         try:
             allowed_keys = self._init(**kwargs)
@@ -257,7 +335,7 @@ class _BaseActivity(object, metaclass=_ActivityMeta):
         except Exception:
             raise BadActivityError(f'failed to validate actor {obj!r}')
 
-        if not actor or not 'id' in actor:
+        if not actor or 'id' not in actor:
             raise BadActivityError(f'invalid actor {actor}')
 
         return actor['id']
@@ -274,7 +352,7 @@ class _BaseActivity(object, metaclass=_ActivityMeta):
                 raise UnexpectedActivityTypeError(f'invalid object type {obj.get("type")!r}')
                 p = parse_activity(obj)
 
-        self.__obj: Optional[BaseActivity] = p
+        self.__obj: Optional['BaseActivity'] = p
         return p
 
     def reset_object_cache(self) -> None:
@@ -326,13 +404,6 @@ class _BaseActivity(object, metaclass=_ActivityMeta):
     def _undo_inbox(self) -> None:
         raise NotImplementedError
 
-    # FIXME(tsileo): delete these?
-    def _undo_should_purge_cache(self) -> bool:
-        raise NotImplementedError
-
-    def _should_purge_cache(self) -> bool:
-        raise NotImplementedError
-
     def process_from_inbox(self) -> None:
         logger.debug(f'calling main process from inbox hook for {self}')
         actor = self.get_actor()
@@ -340,12 +411,12 @@ class _BaseActivity(object, metaclass=_ActivityMeta):
         # Check for Block activity
         # ABC
         if self.outbox_is_blocked(actor.id):
-            # TODO(tsileo): raise ActorBlockedError
+            # TODO(tsileo): raise ActorBlockedError?
             logger.info(f'actor {actor!r} is blocked, dropping the received activity {self!r}')
             return
 
         # ABC
-        if self.inbox_get_by_id(self.id):
+        if self.inbox_get_by_iri(self.id):
             # The activity is already in the inbox
             logger.info(f'received duplicate activity {self}, dropping it')
             return
@@ -357,7 +428,7 @@ class _BaseActivity(object, metaclass=_ActivityMeta):
             logger.debug('pre process from inbox hook not implemented')
 
         # ABC
-        self.inbox_create(self)
+        self.inbox_new(self)
         logger.info('activity {self!r} saved')
 
         try:
@@ -371,7 +442,8 @@ class _BaseActivity(object, metaclass=_ActivityMeta):
 
         # Assign create a random ID
         obj_id = random_object_id()
-        self.set_id(f'{ID}/outbox/{obj_id}', obj_id)
+        # ABC
+        self.set_id(self.activity_url(obj_id), obj_id)
 
         try:
             self._pre_post_to_outbox()
@@ -380,11 +452,11 @@ class _BaseActivity(object, metaclass=_ActivityMeta):
             logger.debug('pre post to outbox hook not implemented')
 
         # ABC
-        self.outbox_create(self)
+        self.outbox_new(self)
 
         recipients = self.recipients()
         logger.info(f'recipients={recipients}')
-        activity = clean_activity(activity)
+        activity = clean_activity(self.to_dict())
 
         try:
             self._post_to_outbox(obj_id, activity, recipients)
@@ -399,9 +471,6 @@ class _BaseActivity(object, metaclass=_ActivityMeta):
             # ABC
             self.post_to_remote_inbox(payload, recp)
 
-    def _post_to_inbox(self, payload: str, to: str):
-        tasks.post_to_inbox.delay(payload, to)
-
     def _recipients(self) -> List[str]:
         return []
 
@@ -423,7 +492,7 @@ class _BaseActivity(object, metaclass=_ActivityMeta):
                 actor = recipient
             else:
                 raw_actor = OBJECT_FETCHER.fetch(recipient)
-                if raw_actor['type'] == ActiivtyType.PERSON.name:
+                if raw_actor['type'] == ActivityType.PERSON.name:
                     actor = Person(**raw_actor)
 
                     if actor.endpoints:
@@ -439,12 +508,12 @@ class _BaseActivity(object, metaclass=_ActivityMeta):
                 elif raw_actor['type'] in [ActivityType.COLLECTION.value,
                                            ActivityType.ORDERED_COLLECTION.value]:
                         for item in parse_collection(raw_actor):
-                            if item in [ME, AS_PUBLIC]:
+                            if item in [actor_id, AS_PUBLIC]:
                                 continue
                             try:
                                 col_actor = Person(**OBJECT_FETCHER.fetch(item))
-                            except NotAnActorError:
-                                pass
+                            except UnexpectedActivityTypeError:
+                                logger.exception(f'failed to fetch actor {item!r}')
 
                             if col_actor.endpoints:
                                 shared_inbox = col_actor.endpoints.get('sharedInbox')
@@ -503,7 +572,6 @@ class Follow(BaseActivity):
     OBJECT_REQUIRED = True
     ACTOR_REQUIRED = True
 
-
     def _build_reply(self, reply_type: ActivityType) -> BaseActivity:
         if reply_type == ActivityType.ACCEPT:
             return Accept(
@@ -520,18 +588,18 @@ class Follow(BaseActivity):
         accept = self.build_accept()
         accept.post_to_outbox()
 
-        remote_actor = self.get_actor().id
+        remote_actor = self.get_actor()
 
         # ABC
         self.new_follower(remote_actor)
 
     def _undo_inbox(self) -> None:
         # ABC
-        self.undo_new_follower(self.get_actor().id)
+        self.undo_new_follower(self.get_actor())
 
     def _undo_outbox(self) -> None:
         # ABC
-        self.undo_new_following(self.get_object().id)
+        self.undo_new_following(self.get_actor())
 
     def build_accept(self) -> BaseActivity:
         return self._build_reply(ActivityType.ACCEPT)
@@ -551,6 +619,7 @@ class Accept(BaseActivity):
 
     def _pre_process_from_inbox(self) -> None:
         # FIXME(tsileo): ensure the actor match the object actor
+        pass
 
     def _process_from_inbox(self) -> None:
         # ABC
@@ -591,9 +660,9 @@ class Undo(BaseActivity):
 
     def _pre_post_to_outbox(self) -> None:
         """Ensures an Undo activity references an activity owned by the instance."""
-        obj = self.get_object()
-        if not obj.id.startswith(ID):
-            raise NotFromOutboxError(f'object {obj["id"]} is not owned by this instance')
+        # ABC
+        if not self.is_from_outbox(self):
+            raise NotFromOutboxError(f'object {self!r} is not owned by this instance')
 
     def _post_to_outbox(self, obj_id: str, activity: ObjectType, recipients: List[str]) -> None:
         logger.debug('processing undo to outbox')
@@ -622,43 +691,20 @@ class Like(BaseActivity):
         return [self.get_object().get_actor().id]
 
     def _process_from_inbox(self):
-        obj = self.get_object()
-        # Update the meta counter if the object is published by the server
-        # FIXME(tsileo): continue here
-        DB.outbox.update_one({'activity.object.id': obj.id}, {
-            '$inc': {'meta.count_like': 1},
-        })
-        # XXX(tsileo): notification??
+        # ABC
+        self.inbox_like(self)
 
     def _undo_inbox(self) -> None:
-        obj = self.get_object()
-        # Update the meta counter if the object is published by the server
-        DB.outbox.update_one({'activity.object.id': obj.id}, {
-            '$inc': {'meta.count_like': -1},
-        })
-
-    def _undo_should_purge_cache(self) -> bool:
-        # If a like coutn was decremented, we need to purge the application cache
-        return self.get_object().id.startswith(BASE_URL)
+        # ABC
+        self.inbox_undo_like(self)
 
     def _post_to_outbox(self, obj_id: str, activity: ObjectType, recipients: List[str]):
-        obj = self.get_object()
-        # Unlikely, but an actor can like it's own post
-        DB.outbox.update_one({'activity.object.id': obj.id}, {
-            '$inc': {'meta.count_like': 1},
-        })
-
-        # Keep track of the like we just performed
-        DB.inbox.update_one({'activity.object.id': obj.id}, {'$set': {'meta.liked': obj_id}})
+        # ABC
+        self.outbox_like(self)
 
     def _undo_outbox(self) -> None:
-        obj = self.get_object()
-        # Unlikely, but an actor can like it's own post
-        DB.outbox.update_one({'activity.object.id': obj.id}, {
-            '$inc': {'meta.count_like': -1},
-        })
-
-        DB.inbox.update_one({'activity.object.id': obj.id}, {'$set': {'meta.liked': False}})
+        # ABC
+        self.outbox_undo_like(self)
 
     def build_undo(self) -> BaseActivity:
         return Undo(object=self.to_dict(embed=True, embed_object_id_only=True))
@@ -667,6 +713,8 @@ class Like(BaseActivity):
 class Announce(BaseActivity):
     ACTIVITY_TYPE = ActivityType.ANNOUNCE
     ALLOWED_OBJECT_TYPES = [ActivityType.NOTE]
+    OBJECT_REQUIRED = True
+    ACTOR_REQUIRED = True
 
     def _recipients(self) -> List[str]:
         recipients = []
@@ -684,49 +732,21 @@ class Announce(BaseActivity):
                 f'received an Annouce referencing an OStatus notice ({self._data["object"]}), dropping the message'
             )
             return
-        # Save/cache the object, and make it part of the stream so we can fetch it
-        if isinstance(self._data['object'], str):
-            raw_obj = OBJECT_SERVICE.get(
-                self._data['object'],
-                reload_cache=True,
-                part_of_stream=True,
-                announce_published=self._data['published'],
-            )
-            obj = parse_activity(raw_obj)
-        else:
-            obj = self.get_object()
 
-        DB.outbox.update_one({'activity.object.id': obj.id}, {
-            '$inc': {'meta.count_boost': 1},
-        })
+        # ABC
+        self.inbox_announce(self)
 
     def _undo_inbox(self) -> None:
-        obj = self.get_object()
-        # Update the meta counter if the object is published by the server
-        DB.outbox.update_one({'activity.object.id': obj.id}, {
-            '$inc': {'meta.count_boost': -1},
-        })
-
-    def _undo_should_purge_cache(self) -> bool:
-        # If a like coutn was decremented, we need to purge the application cache
-        return self.get_object().id.startswith(BASE_URL)
+        # ABC
+        self.inbox_undo_annnounce(self)
 
     def _post_to_outbox(self, obj_id: str, activity: ObjectType, recipients: List[str]) -> None:
-        if isinstance(self._data['object'], str):
-            # Put the object in the cache
-            OBJECT_SERVICE.get(
-                self._data['object'],
-                reload_cache=True,
-                part_of_stream=True,
-                announce_published=self._data['published'],
-            )
-
-        obj = self.get_object()
-        DB.inbox.update_one({'activity.object.id': obj.id}, {'$set': {'meta.boosted': obj_id}})
+        # ABC
+        self.outbox_announce(self)
 
     def _undo_outbox(self) -> None:
-        obj = self.get_object()
-        DB.inbox.update_one({'activity.object.id': obj.id}, {'$set': {'meta.boosted': False}})
+        # ABC
+        self.outbox_undo_announce(self)
 
     def build_undo(self) -> BaseActivity:
         return Undo(object=self.to_dict(embed=True))
@@ -738,9 +758,10 @@ class Delete(BaseActivity):
     OBJECT_REQUIRED = True
 
     def _get_actual_object(self) -> BaseActivity:
+        # FIXME(tsileo): overrides get_object instead?
         obj = self.get_object()
         if obj.type_enum == ActivityType.TOMBSTONE:
-            obj = parse_activity(OBJECT_SERVICE.get(obj.id))
+            obj = parse_activity(OBJECT_FETCHER.fetch(obj.id))
         return obj
 
     def _recipients(self) -> List[str]:
@@ -755,27 +776,27 @@ class Delete(BaseActivity):
             raise BadActivityError(f'{actor!r} cannot delete {obj!r}')
 
     def _process_from_inbox(self) -> None:
-        DB.inbox.update_one({'activity.object.id': self.get_object().id}, {'$set': {'meta.deleted': True}})
-        obj = self._get_actual_object()
-        if obj.type_enum == ActivityType.NOTE:
-            obj._delete_from_threads()
-
-        # TODO(tsileo): also purge the cache if it's a reply of a published activity
+        # ABC
+        self.inbox_delete(self)
+        # FIXME(tsileo): handle the delete_threads here?
 
     def _pre_post_to_outbox(self) -> None:
         """Ensures the Delete activity references a activity from the outbox (i.e. owned by the instance)."""
         obj = self._get_actual_object()
-        if not obj.id.startswith(ID):
+        # ABC
+        if not self.is_from_outbox(self):
             raise NotFromOutboxError(f'object {obj["id"]} is not owned by this instance')
 
     def _post_to_outbox(self, obj_id: str, activity: ObjectType, recipients: List[str]) -> None:
-        DB.outbox.update_one({'activity.object.id': self.get_object().id}, {'$set': {'meta.deleted': True}})
+        # ABC
+        self.outbox_delete(self)
 
 
 class Update(BaseActivity):
     ACTIVITY_TYPE = ActivityType.UPDATE
     ALLOWED_OBJECT_TYPES = [ActivityType.NOTE, ActivityType.PERSON]
     OBJECT_REQUIRED = True
+    ACTOR_REQUIRED = True
 
     def _pre_process_from_inbox(self) -> None:
         """Ensures an Update activity comes from the same actor as the updated activity."""
@@ -785,53 +806,29 @@ class Update(BaseActivity):
             raise BadActivityError(f'{actor!r} cannot update {obj!r}')
 
     def _process_from_inbox(self):
-        obj = self.get_object()
-        if obj.type_enum == ActivityType.NOTE:
-            DB.inbox.update_one({'activity.object.id': obj.id}, {'$set': {'activity.object': obj.to_dict()}})
-            return
-
-        # If the object is a Person, it means the profile was updated, we just refresh our local cache
-        ACTOR_SERVICE.get(obj.id, reload_cache=True)
-
-        # TODO(tsileo): implements _should_purge_cache if it's a reply of a published activity (i.e. in the outbox)
+        # ABC
+        self.inbox_update(self)
 
     def _pre_post_to_outbox(self) -> None:
-        obj = self.get_object()
-        if not obj.id.startswith(ID):
-            raise NotFromOutboxError(f'object {obj["id"]} is not owned by this instance')
+        # ABC
+        if not self.is_form_outbox(self):
+            raise NotFromOutboxError(f'object {self!r} is not owned by this instance')
 
     def _post_to_outbox(self, obj_id: str, activity: ObjectType, recipients: List[str]) -> None:
-        obj = self._data['object']
-
-        update_prefix = 'activity.object.'
-        update: Dict[str, Any] = {'$set': dict(), '$unset': dict()}
-        update['$set'][f'{update_prefix}updated'] = datetime.utcnow().replace(microsecond=0).isoformat() + 'Z'
-        for k, v in obj.items():
-            if k in ['id', 'type']:
-                continue
-            if v is None:
-                update['$unset'][f'{update_prefix}{k}'] = ''
-            else:
-                update['$set'][f'{update_prefix}{k}'] = v
-
-        if len(update['$unset']) == 0:
-            del(update['$unset'])
-
-        print(f'updating note from outbox {obj!r} {update}')
-        logger.info(f'updating note from outbox {obj!r} {update}')
-        DB.outbox.update_one({'activity.object.id': obj['id']}, update)
-        # FIXME(tsileo): should send an Update (but not a partial one, to all the note's recipients
-        # (create a new Update with the result of the update, and send it without saving it?)
+        # ABC
+        self.outbox_update(self)
 
 
 class Create(BaseActivity):
     ACTIVITY_TYPE = ActivityType.CREATE
     ALLOWED_OBJECT_TYPES = [ActivityType.NOTE]
     OBJECT_REQUIRED = True
+    ACTOR_REQUIRED = True
 
     def _set_id(self, uri: str, obj_id: str) -> None:
         self._data['object']['id'] = uri + '/activity'
-        self._data['object']['url'] = ID + '/' + self.get_object().type.lower() + '/' + obj_id
+        # ABC
+        self._data['object']['url'] = self.note_url(self)
         self.reset_object_cache()
 
     def _init(self, **kwargs):
@@ -857,83 +854,25 @@ class Create(BaseActivity):
 
         return recipients
 
-    def _update_threads(self) -> None:
-        logger.debug('_update_threads hook')
-        obj = self.get_object()
-
-        # TODO(tsileo): re-enable me
-        # tasks.fetch_og.delay('INBOX', self.id)
-
-        threads = []
-        reply = obj.get_local_reply()
-        print(f'initial_reply={reply}')
-        print(f'{obj}')
-        logger.debug(f'initial_reply={reply}')
-        reply_id = None
-        direct_reply = 1
-        while reply is not None:
-            if not DB.inbox.find_one_and_update({'activity.object.id': reply.id}, {
-                '$inc': {
-                    'meta.count_reply': 1,
-                    'meta.count_direct_reply': direct_reply,
-                },
-                '$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}')
-            threads.append(reply_id)
-        # FIXME(tsileo): obj.id is None!!
-        print(f'reply_id={reply_id} {obj.id} {obj._data} {self.id}')
-
-        if reply_id:
-            if not DB.inbox.find_one_and_update({'activity.object.id': obj.id}, {
-                '$set': {
-                    'meta.thread_parents': threads,
-                    'meta.thread_root_parent': reply_id,
-                },
-            }):
-                DB.outbox.update_one({'activity.object.id': obj.id}, {
-                    '$set': {
-                        'meta.thread_parents': threads,
-                        'meta.thread_root_parent': reply_id,
-                    },
-                })
-        logger.debug('_update_threads done')
-
     def _process_from_inbox(self) -> None:
-        self._update_threads()
+        # ABC
+        self.inbox_create(self)
 
     def _post_to_outbox(self, obj_id: str, activity: ObjectType, recipients: List[str]) -> None:
-        self._update_threads()
-
-    def _should_purge_cache(self) -> bool:
-        # TODO(tsileo): handle reply of a reply...
-        obj = self.get_object()
-        in_reply_to = obj.inReplyTo
-        if in_reply_to:
-            local_activity = DB.outbox.find_one({'activity.type': 'Create', 'activity.object.id': in_reply_to})
-            if local_activity:
-                return True
-
-        return False
+        # ABC
+        self.outbox_create(self)
 
 
 class Tombstone(BaseActivity):
     ACTIVITY_TYPE = ActivityType.TOMBSTONE
+    ACTOR_REQUIRED = False
+    OBJECT_REQUIRED = False
 
 
 class Note(BaseActivity):
     ACTIVITY_TYPE = ActivityType.NOTE
+    ACTOR_REQUIRED = True
+    OBJECT_REQURIED = False
 
     def _init(self, **kwargs):
         print(self._data)
@@ -947,11 +886,12 @@ class Note(BaseActivity):
         # TODO(tsileo): audience support?
         recipients: List[str] = []
 
+        # FIXME(tsileo): re-add support for the PUBLIC_INSTANCES
         # If the note is public, we publish it to the defined "public instances"
-        if AS_PUBLIC in self._data.get('to', []):
-            recipients.extend(PUBLIC_INSTANCES)
-            print('publishing to public instances')
-            print(recipients)
+        # if AS_PUBLIC in self._data.get('to', []):
+        #    recipients.extend(PUBLIC_INSTANCES)
+        #    print('publishing to public instances')
+        #    print(recipients)
 
         for field in ['to', 'cc', 'bto', 'bcc']:
             if field in self._data:
@@ -959,59 +899,11 @@ class Note(BaseActivity):
 
         return recipients
 
-    def _delete_from_threads(self) -> None:
-        logger.debug('_delete_from_threads hook')
-
-        reply = self.get_local_reply()
-        logger.debug(f'initial_reply={reply}')
-        direct_reply = -1
-        while reply is not None:
-            if not DB.inbox.find_one_and_update({'activity.object.id': reply.id}, {
-                '$inc': {
-                    'meta.count_reply': -1,
-                    'meta.count_direct_reply': direct_reply,
-                },
-                '$pull': {'meta.thread_children': self.id},
-
-            }):
-                DB.outbox.update_one({'activity.object.id': reply.id}, {
-                    '$inc': {
-                        'meta.count_reply': 1,
-                        'meta.count_direct_reply': direct_reply,
-                    },
-                    '$pull': {'meta.thread_children': self.id},
-                })
-
-            direct_reply = 0
-            reply = reply.get_local_reply()
-            logger.debug(f'next_reply={reply}')
-
-        logger.debug('_delete_from_threads done')
-        return None
-
-    def get_local_reply(self) -> Optional[BaseActivity]:
-        "Find the note reply if any."""
-        in_reply_to = self.inReplyTo
-        if not in_reply_to:
-            # This is the root comment
-            return None
-
-        inbox_parent = DB.inbox.find_one({'activity.type': 'Create', 'activity.object.id': in_reply_to})
-        if inbox_parent:
-            return parse_activity(inbox_parent['activity']['object'])
-
-        outbox_parent = DB.outbox.find_one({'activity.type': 'Create', 'activity.object.id': in_reply_to})
-        if outbox_parent:
-            return parse_activity(outbox_parent['activity']['object'])
-
-        # The parent is no stored on this instance
-        return None
-
     def build_create(self) -> BaseActivity:
         """Wraps an activity in a Create activity."""
         create_payload = {
             'object': self.to_dict(embed=True),
-            'actor': self.attributedTo or ME,
+            'actor': self.attributedTo,
         }
         for field in ['published', 'to', 'bto', 'cc', 'bcc', 'audience']:
             if field in self._data:
@@ -1026,7 +918,7 @@ class Note(BaseActivity):
         return Announce(
             object=self.id,
             to=[AS_PUBLIC],
-            cc=[ID+'/followers', self.attributedTo],
+            cc=[self.follower_collection_id(self.get_actor()), self.attributedTo],  # ABC
             published=datetime.utcnow().replace(microsecond=0).isoformat() + 'Z',
         )
 

little_boxes/errors.py

@@ -8,7 +8,11 @@ class Error(Exception):
     """HTTP-friendly base error, with a status code, a message and an optional payload."""
     status_code = 400
 
-    def __init__(self, message: str, status_code: Optional[int] = None, payload: Optional[Dict[str, Any]] = None) -> None:
+    def __init__(
+        self, message: str,
+        status_code: Optional[int] = None,
+        payload: Optional[Dict[str, Any]] = None,
+    ) -> None:
         Exception.__init__(self)
         self.message = message
         if status_code is not None:
@@ -21,7 +25,9 @@ class Error(Exception):
         return rv
 
     def __repr__(self) -> str:
-        return f'{self.__class__.__qualname__}({self.message!r}, payload={self.payload!r}, status_code={self.status_code})'
+        return (
+            f'{self.__class__.__qualname__}({self.message!r}, payload={self.payload!r}, status_code={self.status_code})'
+        )
 
 
 class ActorBlockedError(Error):

little_boxes/remote_object.py

@@ -2,12 +2,9 @@ import logging
 from typing import Any
 
 import requests
-from urllib.parse import urlparse
-from Crypto.PublicKey import RSA
 
 from .urlutils import check_url
 from .errors import ActivityNotFoundError
-from .errors import UnexpectedActivityTypeError
 
 logger = logging.getLogger(__name__)
 
@@ -21,19 +18,22 @@ class DefaultRemoteObjectFetcher(object):
     def fetch(self, iri):
         check_url(iri)
 
-        resp = requests.get(actor_url, headers={
+        resp = requests.get(iri, headers={
             'Accept': 'application/activity+json',
             'User-Agent': self._user_agent,
         })
 
         if resp.status_code == 404:
-            raise ActivityNotFoundError(f'{actor_url} cannot be fetched, 404 not found error')
+            raise ActivityNotFoundError(f'{iri} cannot be fetched, 404 not found error')
 
         resp.raise_for_status()
 
         return resp.json()
 
+
 OBJECT_FETCHER = DefaultRemoteObjectFetcher()
 
+
 def set_object_fetcher(object_fetcher: Any):
+    global OBJECT_FETCHER
     OBJECT_FETCHER = object_fetcher

little_boxes/utils.py

@@ -4,7 +4,6 @@ from typing import Dict
 from typing import List
 from typing import Any
 
-import requests
 
 from .errors import RecursionLimitExceededError
 from .errors import UnexpectedActivityTypeError
@@ -21,10 +20,6 @@ def parse_collection(
         raise RecursionLimitExceededError('recursion limit exceeded')
 
     # Go through all the pages
-    headers = {'Accept': 'application/activity+json'}
-    if user_agent:
-        headers['User-Agent'] = user_agent
-
     out: List[Any] = []
     if url:
         payload = OBJECT_FETCHER.fetch(url)