liked object, a `Follow` activity will add the user to the follower
collection, and so on.
"""
+ alias Pleroma.Activity
+ alias Pleroma.Chat
+ alias Pleroma.Chat.MessageReference
alias Pleroma.Notification
alias Pleroma.Object
+ alias Pleroma.Repo
+ alias Pleroma.User
+ alias Pleroma.Web.ActivityPub.ActivityPub
+ alias Pleroma.Web.ActivityPub.Pipeline
alias Pleroma.Web.ActivityPub.Utils
+ alias Pleroma.Web.Push
+ alias Pleroma.Web.Streamer
def handle(object, meta \\ [])
# - Add like to object
# - Set up notification
def handle(%{data: %{"type" => "Like"}} = object, meta) do
- {:ok, result} =
- Pleroma.Repo.transaction(fn ->
- liked_object = Object.get_by_ap_id(object.data["object"])
- Utils.add_like_to_object(object, liked_object)
+ liked_object = Object.get_by_ap_id(object.data["object"])
+ Utils.add_like_to_object(object, liked_object)
- Notification.create_notifications(object)
+ Notification.create_notifications(object)
- {:ok, object, meta}
- end)
+ {:ok, object, meta}
+ end
+
+ # Tasks this handles
+ # - Actually create object
+ # - Rollback if we couldn't create it
+ # - Set up notifications
+ def handle(%{data: %{"type" => "Create"}} = activity, meta) do
+ with {:ok, _object, meta} <- handle_object_creation(meta[:object_data], meta) do
+ {:ok, notifications} = Notification.create_notifications(activity, do_send: false)
+
+ meta =
+ meta
+ |> add_notifications(notifications)
+
+ {:ok, activity, meta}
+ else
+ e -> Repo.rollback(e)
+ end
+ end
+
+ # Tasks this handles:
+ # - Add announce to object
+ # - Set up notification
+ # - Stream out the announce
+ def handle(%{data: %{"type" => "Announce"}} = object, meta) do
+ announced_object = Object.get_by_ap_id(object.data["object"])
+ user = User.get_cached_by_ap_id(object.data["actor"])
+
+ Utils.add_announce_to_object(object, announced_object)
+
+ if !User.is_internal_user?(user) do
+ Notification.create_notifications(object)
+ ActivityPub.stream_out(object)
+ end
+
+ {:ok, object, meta}
+ end
+
+ def handle(%{data: %{"type" => "Undo", "object" => undone_object}} = object, meta) do
+ with undone_object <- Activity.get_by_ap_id(undone_object),
+ :ok <- handle_undoing(undone_object) do
+ {:ok, object, meta}
+ end
+ end
- result
+ # Tasks this handles:
+ # - Add reaction to object
+ # - Set up notification
+ def handle(%{data: %{"type" => "EmojiReact"}} = object, meta) do
+ reacted_object = Object.get_by_ap_id(object.data["object"])
+ Utils.add_emoji_reaction_to_object(object, reacted_object)
+
+ Notification.create_notifications(object)
+
+ {:ok, object, meta}
end
# Tasks this handles:
- # - Delete create activity
+ # - Delete and unpins the create activity
# - Replace object with Tombstone
# - Set up notification
+ # - Reduce the user note count
+ # - Reduce the reply count
+ # - Stream out the activity
def handle(%{data: %{"type" => "Delete", "object" => deleted_object}} = object, meta) do
- with %Object{} = deleted_object <- Object.normalize(deleted_object),
- {:ok, _, _} <- Object.delete(deleted_object) do
+ deleted_object =
+ Object.normalize(deleted_object, false) || User.get_cached_by_ap_id(deleted_object)
+
+ result =
+ case deleted_object do
+ %Object{} ->
+ with {:ok, deleted_object, activity} <- Object.delete(deleted_object),
+ %User{} = user <- User.get_cached_by_ap_id(deleted_object.data["actor"]) do
+ User.remove_pinnned_activity(user, activity)
+
+ {:ok, user} = ActivityPub.decrease_note_count_if_public(user, deleted_object)
+
+ if in_reply_to = deleted_object.data["inReplyTo"] do
+ Object.decrease_replies_count(in_reply_to)
+ end
+
+ MessageReference.delete_for_object(deleted_object)
+
+ ActivityPub.stream_out(object)
+ ActivityPub.stream_out_participations(deleted_object, user)
+ :ok
+ end
+
+ %User{} ->
+ with {:ok, _} <- User.delete(deleted_object) do
+ :ok
+ end
+ end
+
+ if result == :ok do
Notification.create_notifications(object)
{:ok, object, meta}
+ else
+ {:error, result}
end
end
def handle(object, meta) do
{:ok, object, meta}
end
+
+ def handle_object_creation(%{"type" => "ChatMessage"} = object, meta) do
+ with {:ok, object, meta} <- Pipeline.common_pipeline(object, meta) do
+ actor = User.get_cached_by_ap_id(object.data["actor"])
+ recipient = User.get_cached_by_ap_id(hd(object.data["to"]))
+
+ streamables =
+ [[actor, recipient], [recipient, actor]]
+ |> Enum.map(fn [user, other_user] ->
+ if user.local do
+ {:ok, chat} = Chat.bump_or_create(user.id, other_user.ap_id)
+ {:ok, cm_ref} = MessageReference.create(chat, object, user.ap_id != actor.ap_id)
+
+ {
+ ["user", "user:pleroma_chat"],
+ {user, %{cm_ref | chat: chat, object: object}}
+ }
+ end
+ end)
+ |> Enum.filter(& &1)
+
+ meta =
+ meta
+ |> add_streamables(streamables)
+
+ {:ok, object, meta}
+ end
+ end
+
+ # Nothing to do
+ def handle_object_creation(object) do
+ {:ok, object}
+ end
+
+ def handle_undoing(%{data: %{"type" => "Like"}} = object) do
+ with %Object{} = liked_object <- Object.get_by_ap_id(object.data["object"]),
+ {:ok, _} <- Utils.remove_like_from_object(object, liked_object),
+ {:ok, _} <- Repo.delete(object) do
+ :ok
+ end
+ end
+
+ def handle_undoing(%{data: %{"type" => "EmojiReact"}} = object) do
+ with %Object{} = reacted_object <- Object.get_by_ap_id(object.data["object"]),
+ {:ok, _} <- Utils.remove_emoji_reaction_from_object(object, reacted_object),
+ {:ok, _} <- Repo.delete(object) do
+ :ok
+ end
+ end
+
+ def handle_undoing(%{data: %{"type" => "Announce"}} = object) do
+ with %Object{} = liked_object <- Object.get_by_ap_id(object.data["object"]),
+ {:ok, _} <- Utils.remove_announce_from_object(object, liked_object),
+ {:ok, _} <- Repo.delete(object) do
+ :ok
+ end
+ end
+
+ def handle_undoing(
+ %{data: %{"type" => "Block", "actor" => blocker, "object" => blocked}} = object
+ ) do
+ with %User{} = blocker <- User.get_cached_by_ap_id(blocker),
+ %User{} = blocked <- User.get_cached_by_ap_id(blocked),
+ {:ok, _} <- User.unblock(blocker, blocked),
+ {:ok, _} <- Repo.delete(object) do
+ :ok
+ end
+ end
+
+ def handle_undoing(object), do: {:error, ["don't know how to handle", object]}
+
+ defp send_notifications(meta) do
+ Keyword.get(meta, :notifications, [])
+ |> Enum.each(fn notification ->
+ Streamer.stream(["user", "user:notification"], notification)
+ Push.send(notification)
+ end)
+
+ meta
+ end
+
+ defp send_streamables(meta) do
+ Keyword.get(meta, :streamables, [])
+ |> Enum.each(fn {topics, items} ->
+ Streamer.stream(topics, items)
+ end)
+
+ meta
+ end
+
+ defp add_streamables(meta, streamables) do
+ existing = Keyword.get(meta, :streamables, [])
+
+ meta
+ |> Keyword.put(:streamables, streamables ++ existing)
+ end
+
+ defp add_notifications(meta, notifications) do
+ existing = Keyword.get(meta, :notifications, [])
+
+ meta
+ |> Keyword.put(:notifications, notifications ++ existing)
+ end
+
+ def handle_after_transaction(meta) do
+ meta
+ |> send_notifications()
+ |> send_streamables()
+ end
end