1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
5 defmodule Pleroma.Web.ActivityPub.ActivityPub do
7 alias Pleroma.Instances
8 alias Pleroma.Notification
13 alias Pleroma.Web.ActivityPub.MRF
14 alias Pleroma.Web.ActivityPub.Transmogrifier
15 alias Pleroma.Web.Federator
16 alias Pleroma.Web.OStatus
17 alias Pleroma.Web.WebFinger
20 import Pleroma.Web.ActivityPub.Utils
21 import Pleroma.Web.ActivityPub.Visibility
25 @httpoison Application.get_env(:pleroma, :httpoison)
27 # For Announce activities, we filter the recipients based on following status for any actors
28 # that match actual users. See issue #164 for more information about why this is necessary.
29 defp get_recipients(%{"type" => "Announce"} = data) do
32 actor = User.get_cached_by_ap_id(data["actor"])
36 |> Enum.filter(fn recipient ->
37 case User.get_cached_by_ap_id(recipient) do
42 User.following?(user, actor)
49 defp get_recipients(%{"type" => "Create"} = data) do
52 actor = data["actor"] || []
53 recipients = (to ++ cc ++ [actor]) |> Enum.uniq()
57 defp get_recipients(data) do
64 defp check_actor_is_active(actor) do
65 if not is_nil(actor) do
66 with user <- User.get_cached_by_ap_id(actor),
67 false <- user.info.deactivated do
77 defp check_remote_limit(%{"object" => %{"content" => content}}) when not is_nil(content) do
78 limit = Pleroma.Config.get([:instance, :remote_limit])
79 String.length(content) <= limit
82 defp check_remote_limit(_), do: true
84 def increase_note_count_if_public(actor, object) do
85 if is_public?(object), do: User.increase_note_count(actor), else: {:ok, actor}
88 def decrease_note_count_if_public(actor, object) do
89 if is_public?(object), do: User.decrease_note_count(actor), else: {:ok, actor}
92 def increase_replies_count_if_reply(%{
94 %{"inReplyTo" => reply_ap_id, "inReplyToStatusId" => reply_status_id} = object,
97 if is_public?(object) do
98 Activity.increase_replies_count(reply_status_id)
99 Object.increase_replies_count(reply_ap_id)
103 def increase_replies_count_if_reply(_create_data), do: :noop
105 def decrease_replies_count_if_reply(%Object{
106 data: %{"inReplyTo" => reply_ap_id, "inReplyToStatusId" => reply_status_id} = object
108 if is_public?(object) do
109 Activity.decrease_replies_count(reply_status_id)
110 Object.decrease_replies_count(reply_ap_id)
114 def decrease_replies_count_if_reply(_object), do: :noop
116 def insert(map, local \\ true) when is_map(map) do
117 with nil <- Activity.normalize(map),
118 map <- lazy_put_activity_defaults(map),
119 :ok <- check_actor_is_active(map["actor"]),
120 {_, true} <- {:remote_limit_error, check_remote_limit(map)},
121 {:ok, map} <- MRF.filter(map),
122 {:ok, object} <- insert_full_object(map) do
123 {recipients, _, _} = get_recipients(map)
126 Repo.insert(%Activity{
130 recipients: recipients
133 # Splice in the child object if we have one.
135 if !is_nil(object) do
136 Map.put(activity, :object, object)
142 Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
145 Notification.create_notifications(activity)
149 %Activity{} = activity -> {:ok, activity}
150 error -> {:error, error}
154 def stream_out(activity) do
155 public = "https://www.w3.org/ns/activitystreams#Public"
157 if activity.data["type"] in ["Create", "Announce", "Delete"] do
158 Pleroma.Web.Streamer.stream("user", activity)
159 Pleroma.Web.Streamer.stream("list", activity)
161 if Enum.member?(activity.data["to"], public) do
162 Pleroma.Web.Streamer.stream("public", activity)
165 Pleroma.Web.Streamer.stream("public:local", activity)
168 if activity.data["type"] in ["Create"] do
169 activity.data["object"]
170 |> Map.get("tag", [])
171 |> Enum.filter(fn tag -> is_bitstring(tag) end)
172 |> Enum.each(fn tag -> Pleroma.Web.Streamer.stream("hashtag:" <> tag, activity) end)
174 if activity.data["object"]["attachment"] != [] do
175 Pleroma.Web.Streamer.stream("public:media", activity)
178 Pleroma.Web.Streamer.stream("public:local:media", activity)
183 if !Enum.member?(activity.data["cc"] || [], public) &&
186 User.get_by_ap_id(activity.data["actor"]).follower_address
188 do: Pleroma.Web.Streamer.stream("direct", activity)
193 def create(%{to: to, actor: actor, context: context, object: object} = params) do
194 additional = params[:additional] || %{}
195 # only accept false as false value
196 local = !(params[:local] == false)
197 published = params[:published]
201 %{to: to, actor: actor, published: published, context: context, object: object},
204 {:ok, activity} <- insert(create_data, local),
205 _ <- increase_replies_count_if_reply(create_data),
206 # Changing note count prior to enqueuing federation task in order to avoid
207 # race conditions on updating user.info
208 {:ok, _actor} <- increase_note_count_if_public(actor, activity),
209 :ok <- maybe_federate(activity) do
214 def accept(%{to: to, actor: actor, object: object} = params) do
215 # only accept false as false value
216 local = !(params[:local] == false)
218 with data <- %{"to" => to, "type" => "Accept", "actor" => actor.ap_id, "object" => object},
219 {:ok, activity} <- insert(data, local),
220 :ok <- maybe_federate(activity) do
225 def reject(%{to: to, actor: actor, object: object} = params) do
226 # only accept false as false value
227 local = !(params[:local] == false)
229 with data <- %{"to" => to, "type" => "Reject", "actor" => actor.ap_id, "object" => object},
230 {:ok, activity} <- insert(data, local),
231 :ok <- maybe_federate(activity) do
236 def update(%{to: to, cc: cc, actor: actor, object: object} = params) do
237 # only accept false as false value
238 local = !(params[:local] == false)
247 {:ok, activity} <- insert(data, local),
248 :ok <- maybe_federate(activity) do
253 # TODO: This is weird, maybe we shouldn't check here if we can make the activity.
255 %User{ap_id: ap_id} = user,
256 %Object{data: %{"id" => _}} = object,
260 with nil <- get_existing_like(ap_id, object),
261 like_data <- make_like_data(user, object, activity_id),
262 {:ok, activity} <- insert(like_data, local),
263 {:ok, object} <- add_like_to_object(activity, object),
264 :ok <- maybe_federate(activity) do
265 {:ok, activity, object}
267 %Activity{} = activity -> {:ok, activity, object}
268 error -> {:error, error}
278 with %Activity{} = like_activity <- get_existing_like(actor.ap_id, object),
279 unlike_data <- make_unlike_data(actor, like_activity, activity_id),
280 {:ok, unlike_activity} <- insert(unlike_data, local),
281 {:ok, _activity} <- Repo.delete(like_activity),
282 {:ok, object} <- remove_like_from_object(like_activity, object),
283 :ok <- maybe_federate(unlike_activity) do
284 {:ok, unlike_activity, like_activity, object}
291 %User{ap_id: _} = user,
292 %Object{data: %{"id" => _}} = object,
297 with true <- is_public?(object),
298 announce_data <- make_announce_data(user, object, activity_id, public),
299 {:ok, activity} <- insert(announce_data, local),
300 {:ok, object} <- add_announce_to_object(activity, object),
301 :ok <- maybe_federate(activity) do
302 {:ok, activity, object}
304 error -> {:error, error}
314 with %Activity{} = announce_activity <- get_existing_announce(actor.ap_id, object),
315 unannounce_data <- make_unannounce_data(actor, announce_activity, activity_id),
316 {:ok, unannounce_activity} <- insert(unannounce_data, local),
317 :ok <- maybe_federate(unannounce_activity),
318 {:ok, _activity} <- Repo.delete(announce_activity),
319 {:ok, object} <- remove_announce_from_object(announce_activity, object) do
320 {:ok, unannounce_activity, object}
326 def follow(follower, followed, activity_id \\ nil, local \\ true) do
327 with data <- make_follow_data(follower, followed, activity_id),
328 {:ok, activity} <- insert(data, local),
329 :ok <- maybe_federate(activity) do
334 def unfollow(follower, followed, activity_id \\ nil, local \\ true) do
335 with %Activity{} = follow_activity <- fetch_latest_follow(follower, followed),
336 {:ok, follow_activity} <- update_follow_state(follow_activity, "cancelled"),
337 unfollow_data <- make_unfollow_data(follower, followed, follow_activity, activity_id),
338 {:ok, activity} <- insert(unfollow_data, local),
339 :ok <- maybe_federate(activity) do
344 def delete(%Object{data: %{"id" => id, "actor" => actor}} = object, local \\ true) do
345 user = User.get_cached_by_ap_id(actor)
346 to = (object.data["to"] || []) ++ (object.data["cc"] || [])
348 with {:ok, object, activity} <- Object.delete(object),
354 "deleted_activity_id" => activity && activity.id
356 {:ok, activity} <- insert(data, local),
357 _ <- decrease_replies_count_if_reply(object),
358 # Changing note count prior to enqueuing federation task in order to avoid
359 # race conditions on updating user.info
360 {:ok, _actor} <- decrease_note_count_if_public(user, object),
361 :ok <- maybe_federate(activity) do
366 def block(blocker, blocked, activity_id \\ nil, local \\ true) do
367 ap_config = Application.get_env(:pleroma, :activitypub)
368 unfollow_blocked = Keyword.get(ap_config, :unfollow_blocked)
369 outgoing_blocks = Keyword.get(ap_config, :outgoing_blocks)
371 with true <- unfollow_blocked do
372 follow_activity = fetch_latest_follow(blocker, blocked)
374 if follow_activity do
375 unfollow(blocker, blocked, nil, local)
379 with true <- outgoing_blocks,
380 block_data <- make_block_data(blocker, blocked, activity_id),
381 {:ok, activity} <- insert(block_data, local),
382 :ok <- maybe_federate(activity) do
389 def unblock(blocker, blocked, activity_id \\ nil, local \\ true) do
390 with %Activity{} = block_activity <- fetch_latest_block(blocker, blocked),
391 unblock_data <- make_unblock_data(blocker, blocked, block_activity, activity_id),
392 {:ok, activity} <- insert(unblock_data, local),
393 :ok <- maybe_federate(activity) do
407 # only accept false as false value
408 local = !(params[:local] == false)
409 forward = !(params[:forward] == false)
411 additional = params[:additional] || %{}
423 Map.merge(additional, %{"to" => [], "cc" => [account.ap_id]})
425 Map.merge(additional, %{"to" => [], "cc" => []})
428 with flag_data <- make_flag_data(params, additional),
429 {:ok, activity} <- insert(flag_data, local),
430 :ok <- maybe_federate(activity) do
431 Enum.each(User.all_superusers(), fn superuser ->
433 |> Pleroma.AdminEmail.report(actor, account, statuses, content)
434 |> Pleroma.Mailer.deliver_async()
441 def fetch_activities_for_context(context, opts \\ %{}) do
442 public = ["https://www.w3.org/ns/activitystreams#Public"]
445 if opts["user"], do: [opts["user"].ap_id | opts["user"].following] ++ public, else: public
447 query = from(activity in Activity)
451 |> restrict_blocked(opts)
452 |> restrict_recipients(recipients, opts["user"])
459 "?->>'type' = ? and ?->>'context' = ?",
465 order_by: [desc: :id]
467 |> Activity.with_preloaded_object()
472 def fetch_public_activities(opts \\ %{}) do
473 q = fetch_activities_query(["https://www.w3.org/ns/activitystreams#Public"], opts)
476 |> restrict_unlisted()
481 @valid_visibilities ~w[direct unlisted public private]
483 defp restrict_visibility(query, %{visibility: visibility})
484 when is_list(visibility) do
485 if Enum.all?(visibility, &(&1 in @valid_visibilities)) do
491 "activity_visibility(?, ?, ?) = ANY (?)",
499 Ecto.Adapters.SQL.to_sql(:all, Repo, query)
503 Logger.error("Could not restrict visibility to #{visibility}")
507 defp restrict_visibility(query, %{visibility: visibility})
508 when visibility in @valid_visibilities do
513 fragment("activity_visibility(?, ?, ?) = ?", a.actor, a.recipients, a.data, ^visibility)
516 Ecto.Adapters.SQL.to_sql(:all, Repo, query)
521 defp restrict_visibility(_query, %{visibility: visibility})
522 when visibility not in @valid_visibilities do
523 Logger.error("Could not restrict visibility to #{visibility}")
526 defp restrict_visibility(query, _visibility), do: query
528 def fetch_user_activities(user, reading_user, params \\ %{}) do
531 |> Map.put("type", ["Create", "Announce"])
532 |> Map.put("actor_id", user.ap_id)
533 |> Map.put("whole_db", true)
534 |> Map.put("pinned_activity_ids", user.info.pinned_activities)
538 ["https://www.w3.org/ns/activitystreams#Public"] ++
539 [reading_user.ap_id | reading_user.following]
541 ["https://www.w3.org/ns/activitystreams#Public"]
544 fetch_activities(recipients, params)
548 defp restrict_since(query, %{"since_id" => ""}), do: query
550 defp restrict_since(query, %{"since_id" => since_id}) do
551 from(activity in query, where: activity.id > ^since_id)
554 defp restrict_since(query, _), do: query
556 defp restrict_tag_reject(query, %{"tag_reject" => tag_reject})
557 when is_list(tag_reject) and tag_reject != [] do
560 where: fragment(~s(\(not \(? #> '{"object","tag"}'\) \\?| ?\)), activity.data, ^tag_reject)
564 defp restrict_tag_reject(query, _), do: query
566 defp restrict_tag_all(query, %{"tag_all" => tag_all})
567 when is_list(tag_all) and tag_all != [] do
570 where: fragment(~s(\(? #> '{"object","tag"}'\) \\?& ?), activity.data, ^tag_all)
574 defp restrict_tag_all(query, _), do: query
576 defp restrict_tag(query, %{"tag" => tag}) when is_list(tag) do
579 where: fragment(~s(\(? #> '{"object","tag"}'\) \\?| ?), activity.data, ^tag)
583 defp restrict_tag(query, %{"tag" => tag}) when is_binary(tag) do
586 where: fragment(~s(? <@ (? #> '{"object","tag"}'\)), ^tag, activity.data)
590 defp restrict_tag(query, _), do: query
592 defp restrict_to_cc(query, recipients_to, recipients_cc) do
597 "(?->'to' \\?| ?) or (?->'cc' \\?| ?)",
606 defp restrict_recipients(query, [], _user), do: query
608 defp restrict_recipients(query, recipients, nil) do
609 from(activity in query, where: fragment("? && ?", ^recipients, activity.recipients))
612 defp restrict_recipients(query, recipients, user) do
615 where: fragment("? && ?", ^recipients, activity.recipients),
616 or_where: activity.actor == ^user.ap_id
620 defp restrict_limit(query, %{"limit" => limit}) do
621 from(activity in query, limit: ^limit)
624 defp restrict_limit(query, _), do: query
626 defp restrict_local(query, %{"local_only" => true}) do
627 from(activity in query, where: activity.local == true)
630 defp restrict_local(query, _), do: query
632 defp restrict_max(query, %{"max_id" => ""}), do: query
634 defp restrict_max(query, %{"max_id" => max_id}) do
635 from(activity in query, where: activity.id < ^max_id)
638 defp restrict_max(query, _), do: query
640 defp restrict_actor(query, %{"actor_id" => actor_id}) do
641 from(activity in query, where: activity.actor == ^actor_id)
644 defp restrict_actor(query, _), do: query
646 defp restrict_type(query, %{"type" => type}) when is_binary(type) do
647 from(activity in query, where: fragment("?->>'type' = ?", activity.data, ^type))
650 defp restrict_type(query, %{"type" => type}) do
651 from(activity in query, where: fragment("?->>'type' = ANY(?)", activity.data, ^type))
654 defp restrict_type(query, _), do: query
656 defp restrict_favorited_by(query, %{"favorited_by" => ap_id}) do
659 where: fragment(~s(? <@ (? #> '{"object","likes"}'\)), ^ap_id, activity.data)
663 defp restrict_favorited_by(query, _), do: query
665 defp restrict_media(query, %{"only_media" => val}) when val == "true" or val == "1" do
668 where: fragment(~s(not (? #> '{"object","attachment"}' = ?\)), activity.data, ^[])
672 defp restrict_media(query, _), do: query
674 defp restrict_replies(query, %{"exclude_replies" => val}) when val == "true" or val == "1" do
677 where: fragment("?->'object'->>'inReplyTo' is null", activity.data)
681 defp restrict_replies(query, _), do: query
683 defp restrict_reblogs(query, %{"exclude_reblogs" => val}) when val == "true" or val == "1" do
684 from(activity in query, where: fragment("?->>'type' != 'Announce'", activity.data))
687 defp restrict_reblogs(query, _), do: query
689 defp restrict_muted(query, %{"with_muted" => val}) when val in [true, "true", "1"], do: query
691 defp restrict_muted(query, %{"muting_user" => %User{info: info}}) do
696 where: fragment("not (? = ANY(?))", activity.actor, ^mutes),
697 where: fragment("not (?->'to' \\?| ?)", activity.data, ^mutes)
701 defp restrict_muted(query, _), do: query
703 defp restrict_blocked(query, %{"blocking_user" => %User{info: info}}) do
704 blocks = info.blocks || []
705 domain_blocks = info.domain_blocks || []
709 where: fragment("not (? = ANY(?))", activity.actor, ^blocks),
710 where: fragment("not (?->'to' \\?| ?)", activity.data, ^blocks),
711 where: fragment("not (split_part(?, '/', 3) = ANY(?))", activity.actor, ^domain_blocks)
715 defp restrict_blocked(query, _), do: query
717 defp restrict_unlisted(query) do
722 "not (coalesce(?->'cc', '{}'::jsonb) \\?| ?)",
724 ^["https://www.w3.org/ns/activitystreams#Public"]
729 defp restrict_pinned(query, %{"pinned" => "true", "pinned_activity_ids" => ids}) do
730 from(activity in query, where: activity.id in ^ids)
733 defp restrict_pinned(query, _), do: query
735 defp restrict_muted_reblogs(query, %{"muting_user" => %User{info: info}}) do
736 muted_reblogs = info.muted_reblogs || []
740 where: fragment("not ?->>'type' = 'Announce'", activity.data),
741 where: fragment("not ? = ANY(?)", activity.actor, ^muted_reblogs)
745 defp restrict_muted_reblogs(query, _), do: query
747 defp maybe_preload_objects(query, %{"skip_preload" => true}), do: query
749 defp maybe_preload_objects(query, _) do
751 |> Activity.with_preloaded_object()
754 def fetch_activities_query(recipients, opts \\ %{}) do
757 activity in Activity,
759 order_by: [fragment("? desc nulls last", activity.id)]
763 |> maybe_preload_objects(opts)
764 |> restrict_recipients(recipients, opts["user"])
765 |> restrict_tag(opts)
766 |> restrict_tag_reject(opts)
767 |> restrict_tag_all(opts)
768 |> restrict_since(opts)
769 |> restrict_local(opts)
770 |> restrict_limit(opts)
771 |> restrict_max(opts)
772 |> restrict_actor(opts)
773 |> restrict_type(opts)
774 |> restrict_favorited_by(opts)
775 |> restrict_blocked(opts)
776 |> restrict_muted(opts)
777 |> restrict_media(opts)
778 |> restrict_visibility(opts)
779 |> restrict_replies(opts)
780 |> restrict_reblogs(opts)
781 |> restrict_pinned(opts)
782 |> restrict_muted_reblogs(opts)
785 def fetch_activities(recipients, opts \\ %{}) do
786 fetch_activities_query(recipients, opts)
791 def fetch_activities_bounded(recipients_to, recipients_cc, opts \\ %{}) do
792 fetch_activities_query([], opts)
793 |> restrict_to_cc(recipients_to, recipients_cc)
798 def upload(file, opts \\ []) do
799 with {:ok, data} <- Upload.store(file, opts) do
802 Map.put(data, "actor", opts[:actor])
807 Repo.insert(%Object{data: obj_data})
811 def user_data_from_user_object(data) do
813 data["icon"]["url"] &&
816 "url" => [%{"href" => data["icon"]["url"]}]
820 data["image"]["url"] &&
823 "url" => [%{"href" => data["image"]["url"]}]
826 locked = data["manuallyApprovesFollowers"] || false
827 data = Transmogrifier.maybe_fix_user_object(data)
832 "ap_enabled" => true,
833 "source_data" => data,
839 follower_address: data["followers"],
843 # nickname can be nil because of virtual actors
845 if data["preferredUsername"] do
849 "#{data["preferredUsername"]}@#{URI.parse(data["id"]).host}"
852 Map.put(user_data, :nickname, nil)
858 def fetch_and_prepare_user_from_ap_id(ap_id) do
859 with {:ok, data} <- fetch_and_contain_remote_object_from_id(ap_id) do
860 user_data_from_user_object(data)
862 e -> Logger.error("Could not decode user at fetch #{ap_id}, #{inspect(e)}")
866 def make_user_from_ap_id(ap_id) do
867 if _user = User.get_by_ap_id(ap_id) do
868 Transmogrifier.upgrade_user_from_ap_id(ap_id)
870 with {:ok, data} <- fetch_and_prepare_user_from_ap_id(ap_id) do
871 User.insert_or_update_user(data)
878 def make_user_from_nickname(nickname) do
879 with {:ok, %{"ap_id" => ap_id}} when not is_nil(ap_id) <- WebFinger.finger(nickname) do
880 make_user_from_ap_id(ap_id)
882 _e -> {:error, "No AP id in WebFinger"}
886 def should_federate?(inbox, public) do
890 inbox_info = URI.parse(inbox)
891 !Enum.member?(Pleroma.Config.get([:instance, :quarantined_instances], []), inbox_info.host)
895 def publish(actor, activity) do
897 if actor.follower_address in activity.recipients do
898 {:ok, followers} = User.get_followers(actor)
899 followers |> Enum.filter(&(!&1.local))
904 public = is_public?(activity)
906 {:ok, data} = Transmogrifier.prepare_outgoing(activity.data)
907 json = Jason.encode!(data)
909 (Pleroma.Web.Salmon.remote_users(activity) ++ remote_followers)
910 |> Enum.filter(fn user -> User.ap_enabled?(user) end)
911 |> Enum.map(fn %{info: %{source_data: data}} ->
912 (is_map(data["endpoints"]) && Map.get(data["endpoints"], "sharedInbox")) || data["inbox"]
915 |> Enum.filter(fn inbox -> should_federate?(inbox, public) end)
916 |> Instances.filter_reachable()
917 |> Enum.each(fn {inbox, unreachable_since} ->
918 Federator.publish_single_ap(%{
922 id: activity.data["id"],
923 unreachable_since: unreachable_since
928 def publish_one(%{inbox: inbox, json: json, actor: actor, id: id} = params) do
929 Logger.info("Federating #{id} to #{inbox}")
930 host = URI.parse(inbox).host
932 digest = "SHA-256=" <> (:crypto.hash(:sha256, json) |> Base.encode64())
935 NaiveDateTime.utc_now()
936 |> Timex.format!("{WDshort}, {0D} {Mshort} {YYYY} {h24}:{m}:{s} GMT")
939 Pleroma.Web.HTTPSignatures.sign(actor, %{
941 "content-length": byte_size(json),
946 with {:ok, %{status: code}} when code in 200..299 <-
952 {"Content-Type", "application/activity+json"},
954 {"signature", signature},
958 if !Map.has_key?(params, :unreachable_since) || params[:unreachable_since],
959 do: Instances.set_reachable(inbox)
963 {_post_result, response} ->
964 unless params[:unreachable_since], do: Instances.set_unreachable(inbox)
970 # This will create a Create activity, which we need internally at the moment.
971 def fetch_object_from_id(id) do
972 if object = Object.get_cached_by_ap_id(id) do
975 with {:ok, data} <- fetch_and_contain_remote_object_from_id(id),
976 nil <- Object.normalize(data),
981 "actor" => data["actor"] || data["attributedTo"],
984 :ok <- Transmogrifier.contain_origin(id, params),
985 {:ok, activity} <- Transmogrifier.handle_incoming(params) do
986 {:ok, Object.normalize(activity)}
988 {:error, {:reject, nil}} ->
991 object = %Object{} ->
995 Logger.info("Couldn't get object via AP, trying out OStatus fetching...")
997 case OStatus.fetch_activity_from_url(id) do
998 {:ok, [activity | _]} -> {:ok, Object.normalize(activity)}
1005 def fetch_and_contain_remote_object_from_id(id) do
1006 Logger.info("Fetching object #{id} via AP")
1008 with true <- String.starts_with?(id, "http"),
1009 {:ok, %{body: body, status: code}} when code in 200..299 <-
1012 [{:Accept, "application/activity+json"}]
1014 {:ok, data} <- Jason.decode(body),
1015 :ok <- Transmogrifier.contain_origin_from_id(id, data) do
1023 # filter out broken threads
1024 def contain_broken_threads(%Activity{} = activity, %User{} = user) do
1025 entire_thread_visible_for_user?(activity, user)
1028 # do post-processing on a specific activity
1029 def contain_activity(%Activity{} = activity, %User{} = user) do
1030 contain_broken_threads(activity, user)
1033 # do post-processing on a timeline
1034 def contain_timeline(timeline, user) do
1036 |> Enum.filter(fn activity ->
1037 contain_activity(activity, user)