# Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.ObjectValidators.CommonFixes do
+ alias Pleroma.EctoType.ActivityPub.ObjectValidators
+ alias Pleroma.Object
+ alias Pleroma.Object.Containment
+ alias Pleroma.User
alias Pleroma.Web.ActivityPub.Utils
+ require Pleroma.Constants
- # based on Pleroma.Web.ActivityPub.Utils.lazy_put_objects_defaults
- def fix_defaults(data) do
- %{data: %{"id" => context}, id: context_id} =
- Utils.create_context(data["context"] || data["conversation"])
+ def cast_and_filter_recipients(message, field, follower_collection, field_fallback \\ []) do
+ {:ok, data} = ObjectValidators.Recipients.cast(message[field] || field_fallback)
+
+ data =
+ Enum.reject(data, fn x ->
+ String.ends_with?(x, "/followers") and x != follower_collection
+ end)
+
+ Map.put(message, field, data)
+ end
+
+ def fix_object_defaults(data) do
+ context = Utils.maybe_create_context(data["context"] || data["conversation"])
+
+ %User{follower_address: follower_collection} = User.get_cached_by_ap_id(data["attributedTo"])
+
+ data
+ |> Map.put("context", context)
+ |> cast_and_filter_recipients("to", follower_collection)
+ |> cast_and_filter_recipients("cc", follower_collection)
+ |> cast_and_filter_recipients("bto", follower_collection)
+ |> cast_and_filter_recipients("bcc", follower_collection)
+ |> fix_implicit_addressing(follower_collection)
+ end
+
+ def fix_activity_addressing(activity) do
+ %User{follower_address: follower_collection} = User.get_cached_by_ap_id(activity["actor"])
+
+ activity
+ |> cast_and_filter_recipients("to", follower_collection)
+ |> cast_and_filter_recipients("cc", follower_collection)
+ |> cast_and_filter_recipients("bto", follower_collection)
+ |> cast_and_filter_recipients("bcc", follower_collection)
+ |> fix_implicit_addressing(follower_collection)
+ end
+
+ def fix_actor(data) do
+ actor =
+ data
+ |> Map.put_new("actor", data["attributedTo"])
+ |> Containment.get_actor()
data
- |> Map.put_new("context", context)
- |> Map.put_new("context_id", context_id)
+ |> Map.put("actor", actor)
+ |> Map.put("attributedTo", actor)
end
- def fix_attribution(data) do
+ def fix_activity_context(data, %Object{data: %{"context" => object_context}}) do
data
- |> Map.put_new("actor", data["attributedTo"])
+ |> Map.put("context", object_context)
+ end
+
+ def fix_object_action_recipients(%{"actor" => actor} = data, %Object{data: %{"actor" => actor}}) do
+ to = ((data["to"] || []) -- [actor]) |> Enum.uniq()
+
+ Map.put(data, "to", to)
+ end
+
+ def fix_object_action_recipients(data, %Object{data: %{"actor" => actor}}) do
+ to = ((data["to"] || []) ++ [actor]) |> Enum.uniq()
+
+ Map.put(data, "to", to)
+ end
+
+ # if as:Public is addressed, then make sure the followers collection is also addressed
+ # so that the activities will be delivered to local users.
+ def fix_implicit_addressing(%{"to" => to, "cc" => cc} = object, followers_collection) do
+ recipients = to ++ cc
+
+ if followers_collection not in recipients do
+ cond do
+ Pleroma.Constants.as_public() in cc ->
+ to = to ++ [followers_collection]
+ Map.put(object, "to", to)
+
+ Pleroma.Constants.as_public() in to ->
+ cc = cc ++ [followers_collection]
+ Map.put(object, "cc", cc)
+
+ true ->
+ object
+ end
+ else
+ object
+ end
end
end