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
10 alias Pleroma.Pagination
14 alias Pleroma.Web.ActivityPub.MRF
15 alias Pleroma.Web.ActivityPub.Transmogrifier
16 alias Pleroma.Web.Federator
17 alias Pleroma.Web.OStatus
18 alias Pleroma.Web.WebFinger
21 import Pleroma.Web.ActivityPub.Utils
22 import Pleroma.Web.ActivityPub.Visibility
26 @httpoison Application.get_env(:pleroma, :httpoison)
28 # For Announce activities, we filter the recipients based on following status for any actors
29 # that match actual users. See issue #164 for more information about why this is necessary.
30 defp get_recipients(%{"type" => "Announce"} = data) do
33 actor = User.get_cached_by_ap_id(data["actor"])
37 |> Enum.filter(fn recipient ->
38 case User.get_cached_by_ap_id(recipient) do
43 User.following?(user, actor)
50 defp get_recipients(%{"type" => "Create"} = data) do
53 actor = data["actor"] || []
54 recipients = (to ++ cc ++ [actor]) |> Enum.uniq()
58 defp get_recipients(data) do
65 defp check_actor_is_active(actor) do
66 if not is_nil(actor) do
67 with user <- User.get_cached_by_ap_id(actor),
68 false <- user.info.deactivated do
78 defp check_remote_limit(%{"object" => %{"content" => content}}) when not is_nil(content) do
79 limit = Pleroma.Config.get([:instance, :remote_limit])
80 String.length(content) <= limit
83 defp check_remote_limit(_), do: true
85 def increase_note_count_if_public(actor, object) do
86 if is_public?(object), do: User.increase_note_count(actor), else: {:ok, actor}
89 def decrease_note_count_if_public(actor, object) do
90 if is_public?(object), do: User.decrease_note_count(actor), else: {:ok, actor}
93 def increase_replies_count_if_reply(%{
95 %{"inReplyTo" => reply_ap_id, "inReplyToStatusId" => reply_status_id} = object,
98 if is_public?(object) do
99 Activity.increase_replies_count(reply_status_id)
100 Object.increase_replies_count(reply_ap_id)
104 def increase_replies_count_if_reply(_create_data), do: :noop
106 def decrease_replies_count_if_reply(%Object{
107 data: %{"inReplyTo" => reply_ap_id, "inReplyToStatusId" => reply_status_id} = object
109 if is_public?(object) do
110 Activity.decrease_replies_count(reply_status_id)
111 Object.decrease_replies_count(reply_ap_id)
115 def decrease_replies_count_if_reply(_object), do: :noop
117 def insert(map, local \\ true) when is_map(map) do
118 with nil <- Activity.normalize(map),
119 map <- lazy_put_activity_defaults(map),
120 :ok <- check_actor_is_active(map["actor"]),
121 {_, true} <- {:remote_limit_error, check_remote_limit(map)},
122 {:ok, map} <- MRF.filter(map),
123 {:ok, object} <- insert_full_object(map) do
124 {recipients, _, _} = get_recipients(map)
127 Repo.insert(%Activity{
131 recipients: recipients
134 # Splice in the child object if we have one.
136 if !is_nil(object) do
137 Map.put(activity, :object, object)
143 Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
146 Notification.create_notifications(activity)
150 %Activity{} = activity -> {:ok, activity}
151 error -> {:error, error}
155 def stream_out(activity) do
156 public = "https://www.w3.org/ns/activitystreams#Public"
158 if activity.data["type"] in ["Create", "Announce", "Delete"] do
159 Pleroma.Web.Streamer.stream("user", activity)
160 Pleroma.Web.Streamer.stream("list", activity)
162 if Enum.member?(activity.data["to"], public) do
163 Pleroma.Web.Streamer.stream("public", activity)
166 Pleroma.Web.Streamer.stream("public:local", activity)
169 if activity.data["type"] in ["Create"] do
170 activity.data["object"]
171 |> Map.get("tag", [])
172 |> Enum.filter(fn tag -> is_bitstring(tag) end)
173 |> Enum.each(fn tag -> Pleroma.Web.Streamer.stream("hashtag:" <> tag, activity) end)
175 if activity.data["object"]["attachment"] != [] do
176 Pleroma.Web.Streamer.stream("public:media", activity)
179 Pleroma.Web.Streamer.stream("public:local:media", activity)
184 if !Enum.member?(activity.data["cc"] || [], public) &&
187 User.get_by_ap_id(activity.data["actor"]).follower_address
189 do: Pleroma.Web.Streamer.stream("direct", activity)
194 def create(%{to: to, actor: actor, context: context, object: object} = params) do
195 additional = params[:additional] || %{}
196 # only accept false as false value
197 local = !(params[:local] == false)
198 published = params[:published]
202 %{to: to, actor: actor, published: published, context: context, object: object},
205 {:ok, activity} <- insert(create_data, local),
206 _ <- increase_replies_count_if_reply(create_data),
207 # Changing note count prior to enqueuing federation task in order to avoid
208 # race conditions on updating user.info
209 {:ok, _actor} <- increase_note_count_if_public(actor, activity),
210 :ok <- maybe_federate(activity) do
215 def accept(%{to: to, actor: actor, object: object} = params) do
216 # only accept false as false value
217 local = !(params[:local] == false)
219 with data <- %{"to" => to, "type" => "Accept", "actor" => actor.ap_id, "object" => object},
220 {:ok, activity} <- insert(data, local),
221 :ok <- maybe_federate(activity) do
226 def reject(%{to: to, actor: actor, object: object} = params) do
227 # only accept false as false value
228 local = !(params[:local] == false)
230 with data <- %{"to" => to, "type" => "Reject", "actor" => actor.ap_id, "object" => object},
231 {:ok, activity} <- insert(data, local),
232 :ok <- maybe_federate(activity) do
237 def update(%{to: to, cc: cc, actor: actor, object: object} = params) do
238 # only accept false as false value
239 local = !(params[:local] == false)
248 {:ok, activity} <- insert(data, local),
249 :ok <- maybe_federate(activity) do
254 # TODO: This is weird, maybe we shouldn't check here if we can make the activity.
256 %User{ap_id: ap_id} = user,
257 %Object{data: %{"id" => _}} = object,
261 with nil <- get_existing_like(ap_id, object),
262 like_data <- make_like_data(user, object, activity_id),
263 {:ok, activity} <- insert(like_data, local),
264 {:ok, object} <- add_like_to_object(activity, object),
265 :ok <- maybe_federate(activity) do
266 {:ok, activity, object}
268 %Activity{} = activity -> {:ok, activity, object}
269 error -> {:error, error}
279 with %Activity{} = like_activity <- get_existing_like(actor.ap_id, object),
280 unlike_data <- make_unlike_data(actor, like_activity, activity_id),
281 {:ok, unlike_activity} <- insert(unlike_data, local),
282 {:ok, _activity} <- Repo.delete(like_activity),
283 {:ok, object} <- remove_like_from_object(like_activity, object),
284 :ok <- maybe_federate(unlike_activity) do
285 {:ok, unlike_activity, like_activity, object}
292 %User{ap_id: _} = user,
293 %Object{data: %{"id" => _}} = object,
298 with true <- is_public?(object),
299 announce_data <- make_announce_data(user, object, activity_id, public),
300 {:ok, activity} <- insert(announce_data, local),
301 {:ok, object} <- add_announce_to_object(activity, object),
302 :ok <- maybe_federate(activity) do
303 {:ok, activity, object}
305 error -> {:error, error}
315 with %Activity{} = announce_activity <- get_existing_announce(actor.ap_id, object),
316 unannounce_data <- make_unannounce_data(actor, announce_activity, activity_id),
317 {:ok, unannounce_activity} <- insert(unannounce_data, local),
318 :ok <- maybe_federate(unannounce_activity),
319 {:ok, _activity} <- Repo.delete(announce_activity),
320 {:ok, object} <- remove_announce_from_object(announce_activity, object) do
321 {:ok, unannounce_activity, object}
327 def follow(follower, followed, activity_id \\ nil, local \\ true) do
328 with data <- make_follow_data(follower, followed, activity_id),
329 {:ok, activity} <- insert(data, local),
330 :ok <- maybe_federate(activity) do
335 def unfollow(follower, followed, activity_id \\ nil, local \\ true) do
336 with %Activity{} = follow_activity <- fetch_latest_follow(follower, followed),
337 {:ok, follow_activity} <- update_follow_state(follow_activity, "cancelled"),
338 unfollow_data <- make_unfollow_data(follower, followed, follow_activity, activity_id),
339 {:ok, activity} <- insert(unfollow_data, local),
340 :ok <- maybe_federate(activity) do
345 def delete(%Object{data: %{"id" => id, "actor" => actor}} = object, local \\ true) do
346 user = User.get_cached_by_ap_id(actor)
347 to = (object.data["to"] || []) ++ (object.data["cc"] || [])
349 with {:ok, object, activity} <- Object.delete(object),
355 "deleted_activity_id" => activity && activity.id
357 {:ok, activity} <- insert(data, local),
358 _ <- decrease_replies_count_if_reply(object),
359 # Changing note count prior to enqueuing federation task in order to avoid
360 # race conditions on updating user.info
361 {:ok, _actor} <- decrease_note_count_if_public(user, object),
362 :ok <- maybe_federate(activity) do
367 def block(blocker, blocked, activity_id \\ nil, local \\ true) do
368 ap_config = Application.get_env(:pleroma, :activitypub)
369 unfollow_blocked = Keyword.get(ap_config, :unfollow_blocked)
370 outgoing_blocks = Keyword.get(ap_config, :outgoing_blocks)
372 with true <- unfollow_blocked do
373 follow_activity = fetch_latest_follow(blocker, blocked)
375 if follow_activity do
376 unfollow(blocker, blocked, nil, local)
380 with true <- outgoing_blocks,
381 block_data <- make_block_data(blocker, blocked, activity_id),
382 {:ok, activity} <- insert(block_data, local),
383 :ok <- maybe_federate(activity) do
390 def unblock(blocker, blocked, activity_id \\ nil, local \\ true) do
391 with %Activity{} = block_activity <- fetch_latest_block(blocker, blocked),
392 unblock_data <- make_unblock_data(blocker, blocked, block_activity, activity_id),
393 {:ok, activity} <- insert(unblock_data, local),
394 :ok <- maybe_federate(activity) do
408 # only accept false as false value
409 local = !(params[:local] == false)
410 forward = !(params[:forward] == false)
412 additional = params[:additional] || %{}
424 Map.merge(additional, %{"to" => [], "cc" => [account.ap_id]})
426 Map.merge(additional, %{"to" => [], "cc" => []})
429 with flag_data <- make_flag_data(params, additional),
430 {:ok, activity} <- insert(flag_data, local),
431 :ok <- maybe_federate(activity) do
432 Enum.each(User.all_superusers(), fn superuser ->
434 |> Pleroma.AdminEmail.report(actor, account, statuses, content)
435 |> Pleroma.Mailer.deliver_async()
442 def fetch_activities_for_context(context, opts \\ %{}) do
443 public = ["https://www.w3.org/ns/activitystreams#Public"]
446 if opts["user"], do: [opts["user"].ap_id | opts["user"].following] ++ public, else: public
448 query = from(activity in Activity)
452 |> restrict_blocked(opts)
453 |> restrict_recipients(recipients, opts["user"])
460 "?->>'type' = ? and ?->>'context' = ?",
466 order_by: [desc: :id]
468 |> Activity.with_preloaded_object()
473 def fetch_public_activities(opts \\ %{}) do
474 q = fetch_activities_query(["https://www.w3.org/ns/activitystreams#Public"], opts)
477 |> restrict_unlisted()
478 |> Pagination.fetch_paginated(opts)
482 @valid_visibilities ~w[direct unlisted public private]
484 defp restrict_visibility(query, %{visibility: visibility})
485 when is_list(visibility) do
486 if Enum.all?(visibility, &(&1 in @valid_visibilities)) do
492 "activity_visibility(?, ?, ?) = ANY (?)",
500 Ecto.Adapters.SQL.to_sql(:all, Repo, query)
504 Logger.error("Could not restrict visibility to #{visibility}")
508 defp restrict_visibility(query, %{visibility: visibility})
509 when visibility in @valid_visibilities do
514 fragment("activity_visibility(?, ?, ?) = ?", a.actor, a.recipients, a.data, ^visibility)
517 Ecto.Adapters.SQL.to_sql(:all, Repo, query)
522 defp restrict_visibility(_query, %{visibility: visibility})
523 when visibility not in @valid_visibilities do
524 Logger.error("Could not restrict visibility to #{visibility}")
527 defp restrict_visibility(query, _visibility), do: query
529 def fetch_user_activities(user, reading_user, params \\ %{}) do
532 |> Map.put("type", ["Create", "Announce"])
533 |> Map.put("actor_id", user.ap_id)
534 |> Map.put("whole_db", true)
535 |> Map.put("pinned_activity_ids", user.info.pinned_activities)
539 ["https://www.w3.org/ns/activitystreams#Public"] ++
540 [reading_user.ap_id | reading_user.following]
542 ["https://www.w3.org/ns/activitystreams#Public"]
545 fetch_activities(recipients, params)
549 defp restrict_since(query, %{"since_id" => ""}), do: query
551 defp restrict_since(query, %{"since_id" => since_id}) do
552 from(activity in query, where: activity.id > ^since_id)
555 defp restrict_since(query, _), do: query
557 defp restrict_tag_reject(query, %{"tag_reject" => tag_reject})
558 when is_list(tag_reject) and tag_reject != [] do
561 where: fragment(~s(\(not \(? #> '{"object","tag"}'\) \\?| ?\)), activity.data, ^tag_reject)
565 defp restrict_tag_reject(query, _), do: query
567 defp restrict_tag_all(query, %{"tag_all" => tag_all})
568 when is_list(tag_all) and tag_all != [] do
571 where: fragment(~s(\(? #> '{"object","tag"}'\) \\?& ?), activity.data, ^tag_all)
575 defp restrict_tag_all(query, _), do: query
577 defp restrict_tag(query, %{"tag" => tag}) when is_list(tag) do
580 where: fragment(~s(\(? #> '{"object","tag"}'\) \\?| ?), activity.data, ^tag)
584 defp restrict_tag(query, %{"tag" => tag}) when is_binary(tag) do
587 where: fragment(~s(? <@ (? #> '{"object","tag"}'\)), ^tag, activity.data)
591 defp restrict_tag(query, _), do: query
593 defp restrict_to_cc(query, recipients_to, recipients_cc) do
598 "(?->'to' \\?| ?) or (?->'cc' \\?| ?)",
607 defp restrict_recipients(query, [], _user), do: query
609 defp restrict_recipients(query, recipients, nil) do
610 from(activity in query, where: fragment("? && ?", ^recipients, activity.recipients))
613 defp restrict_recipients(query, recipients, user) do
616 where: fragment("? && ?", ^recipients, activity.recipients),
617 or_where: activity.actor == ^user.ap_id
621 defp restrict_local(query, %{"local_only" => true}) do
622 from(activity in query, where: activity.local == true)
625 defp restrict_local(query, _), do: query
627 defp restrict_actor(query, %{"actor_id" => actor_id}) do
628 from(activity in query, where: activity.actor == ^actor_id)
631 defp restrict_actor(query, _), do: query
633 defp restrict_type(query, %{"type" => type}) when is_binary(type) do
634 from(activity in query, where: fragment("?->>'type' = ?", activity.data, ^type))
637 defp restrict_type(query, %{"type" => type}) do
638 from(activity in query, where: fragment("?->>'type' = ANY(?)", activity.data, ^type))
641 defp restrict_type(query, _), do: query
643 defp restrict_favorited_by(query, %{"favorited_by" => ap_id}) do
646 where: fragment(~s(? <@ (? #> '{"object","likes"}'\)), ^ap_id, activity.data)
650 defp restrict_favorited_by(query, _), do: query
652 defp restrict_media(query, %{"only_media" => val}) when val == "true" or val == "1" do
655 where: fragment(~s(not (? #> '{"object","attachment"}' = ?\)), activity.data, ^[])
659 defp restrict_media(query, _), do: query
661 defp restrict_replies(query, %{"exclude_replies" => val}) when val == "true" or val == "1" do
664 where: fragment("?->'object'->>'inReplyTo' is null", activity.data)
668 defp restrict_replies(query, _), do: query
670 defp restrict_reblogs(query, %{"exclude_reblogs" => val}) when val == "true" or val == "1" do
671 from(activity in query, where: fragment("?->>'type' != 'Announce'", activity.data))
674 defp restrict_reblogs(query, _), do: query
676 defp restrict_muted(query, %{"with_muted" => val}) when val in [true, "true", "1"], do: query
678 defp restrict_muted(query, %{"muting_user" => %User{info: info}}) do
683 where: fragment("not (? = ANY(?))", activity.actor, ^mutes),
684 where: fragment("not (?->'to' \\?| ?)", activity.data, ^mutes)
688 defp restrict_muted(query, _), do: query
690 defp restrict_blocked(query, %{"blocking_user" => %User{info: info}}) do
691 blocks = info.blocks || []
692 domain_blocks = info.domain_blocks || []
696 where: fragment("not (? = ANY(?))", activity.actor, ^blocks),
697 where: fragment("not (?->'to' \\?| ?)", activity.data, ^blocks),
698 where: fragment("not (split_part(?, '/', 3) = ANY(?))", activity.actor, ^domain_blocks)
702 defp restrict_blocked(query, _), do: query
704 defp restrict_unlisted(query) do
709 "not (coalesce(?->'cc', '{}'::jsonb) \\?| ?)",
711 ^["https://www.w3.org/ns/activitystreams#Public"]
716 defp restrict_pinned(query, %{"pinned" => "true", "pinned_activity_ids" => ids}) do
717 from(activity in query, where: activity.id in ^ids)
720 defp restrict_pinned(query, _), do: query
722 defp restrict_muted_reblogs(query, %{"muting_user" => %User{info: info}}) do
723 muted_reblogs = info.muted_reblogs || []
729 "not ( ?->>'type' = 'Announce' and ? = ANY(?))",
737 defp restrict_muted_reblogs(query, _), do: query
739 defp maybe_preload_objects(query, %{"skip_preload" => true}), do: query
741 defp maybe_preload_objects(query, _) do
743 |> Activity.with_preloaded_object()
746 def fetch_activities_query(recipients, opts \\ %{}) do
747 base_query = from(activity in Activity)
750 |> maybe_preload_objects(opts)
751 |> restrict_recipients(recipients, opts["user"])
752 |> restrict_tag(opts)
753 |> restrict_tag_reject(opts)
754 |> restrict_tag_all(opts)
755 |> restrict_since(opts)
756 |> restrict_local(opts)
757 |> restrict_actor(opts)
758 |> restrict_type(opts)
759 |> restrict_favorited_by(opts)
760 |> restrict_blocked(opts)
761 |> restrict_muted(opts)
762 |> restrict_media(opts)
763 |> restrict_visibility(opts)
764 |> restrict_replies(opts)
765 |> restrict_reblogs(opts)
766 |> restrict_pinned(opts)
767 |> restrict_muted_reblogs(opts)
770 def fetch_activities(recipients, opts \\ %{}) do
771 fetch_activities_query(recipients, opts)
772 |> Pagination.fetch_paginated(opts)
776 def fetch_activities_bounded(recipients_to, recipients_cc, opts \\ %{}) do
777 fetch_activities_query([], opts)
778 |> restrict_to_cc(recipients_to, recipients_cc)
779 |> Pagination.fetch_paginated(opts)
783 def upload(file, opts \\ []) do
784 with {:ok, data} <- Upload.store(file, opts) do
787 Map.put(data, "actor", opts[:actor])
792 Repo.insert(%Object{data: obj_data})
796 def user_data_from_user_object(data) do
798 data["icon"]["url"] &&
801 "url" => [%{"href" => data["icon"]["url"]}]
805 data["image"]["url"] &&
808 "url" => [%{"href" => data["image"]["url"]}]
811 locked = data["manuallyApprovesFollowers"] || false
812 data = Transmogrifier.maybe_fix_user_object(data)
817 "ap_enabled" => true,
818 "source_data" => data,
824 follower_address: data["followers"],
828 # nickname can be nil because of virtual actors
830 if data["preferredUsername"] do
834 "#{data["preferredUsername"]}@#{URI.parse(data["id"]).host}"
837 Map.put(user_data, :nickname, nil)
843 def fetch_and_prepare_user_from_ap_id(ap_id) do
844 with {:ok, data} <- fetch_and_contain_remote_object_from_id(ap_id) do
845 user_data_from_user_object(data)
847 e -> Logger.error("Could not decode user at fetch #{ap_id}, #{inspect(e)}")
851 def make_user_from_ap_id(ap_id) do
852 if _user = User.get_by_ap_id(ap_id) do
853 Transmogrifier.upgrade_user_from_ap_id(ap_id)
855 with {:ok, data} <- fetch_and_prepare_user_from_ap_id(ap_id) do
856 User.insert_or_update_user(data)
863 def make_user_from_nickname(nickname) do
864 with {:ok, %{"ap_id" => ap_id}} when not is_nil(ap_id) <- WebFinger.finger(nickname) do
865 make_user_from_ap_id(ap_id)
867 _e -> {:error, "No AP id in WebFinger"}
871 def should_federate?(inbox, public) do
875 inbox_info = URI.parse(inbox)
876 !Enum.member?(Pleroma.Config.get([:instance, :quarantined_instances], []), inbox_info.host)
880 def publish(actor, activity) do
882 if actor.follower_address in activity.recipients do
883 {:ok, followers} = User.get_followers(actor)
884 followers |> Enum.filter(&(!&1.local))
889 public = is_public?(activity)
891 {:ok, data} = Transmogrifier.prepare_outgoing(activity.data)
892 json = Jason.encode!(data)
894 (Pleroma.Web.Salmon.remote_users(activity) ++ remote_followers)
895 |> Enum.filter(fn user -> User.ap_enabled?(user) end)
896 |> Enum.map(fn %{info: %{source_data: data}} ->
897 (is_map(data["endpoints"]) && Map.get(data["endpoints"], "sharedInbox")) || data["inbox"]
900 |> Enum.filter(fn inbox -> should_federate?(inbox, public) end)
901 |> Instances.filter_reachable()
902 |> Enum.each(fn {inbox, unreachable_since} ->
903 Federator.publish_single_ap(%{
907 id: activity.data["id"],
908 unreachable_since: unreachable_since
913 def publish_one(%{inbox: inbox, json: json, actor: actor, id: id} = params) do
914 Logger.info("Federating #{id} to #{inbox}")
915 host = URI.parse(inbox).host
917 digest = "SHA-256=" <> (:crypto.hash(:sha256, json) |> Base.encode64())
920 NaiveDateTime.utc_now()
921 |> Timex.format!("{WDshort}, {0D} {Mshort} {YYYY} {h24}:{m}:{s} GMT")
924 Pleroma.Web.HTTPSignatures.sign(actor, %{
926 "content-length": byte_size(json),
931 with {:ok, %{status: code}} when code in 200..299 <-
937 {"Content-Type", "application/activity+json"},
939 {"signature", signature},
943 if !Map.has_key?(params, :unreachable_since) || params[:unreachable_since],
944 do: Instances.set_reachable(inbox)
948 {_post_result, response} ->
949 unless params[:unreachable_since], do: Instances.set_unreachable(inbox)
955 # This will create a Create activity, which we need internally at the moment.
956 def fetch_object_from_id(id) do
957 if object = Object.get_cached_by_ap_id(id) do
960 with {:ok, data} <- fetch_and_contain_remote_object_from_id(id),
961 nil <- Object.normalize(data),
966 "actor" => data["actor"] || data["attributedTo"],
969 :ok <- Transmogrifier.contain_origin(id, params),
970 {:ok, activity} <- Transmogrifier.handle_incoming(params) do
971 {:ok, Object.normalize(activity)}
973 {:error, {:reject, nil}} ->
976 object = %Object{} ->
980 Logger.info("Couldn't get object via AP, trying out OStatus fetching...")
982 case OStatus.fetch_activity_from_url(id) do
983 {:ok, [activity | _]} -> {:ok, Object.normalize(activity)}
990 def fetch_and_contain_remote_object_from_id(id) do
991 Logger.info("Fetching object #{id} via AP")
993 with true <- String.starts_with?(id, "http"),
994 {:ok, %{body: body, status: code}} when code in 200..299 <-
997 [{:Accept, "application/activity+json"}]
999 {:ok, data} <- Jason.decode(body),
1000 :ok <- Transmogrifier.contain_origin_from_id(id, data) do
1008 # filter out broken threads
1009 def contain_broken_threads(%Activity{} = activity, %User{} = user) do
1010 entire_thread_visible_for_user?(activity, user)
1013 # do post-processing on a specific activity
1014 def contain_activity(%Activity{} = activity, %User{} = user) do
1015 contain_broken_threads(activity, user)
1018 # do post-processing on a timeline
1019 def contain_timeline(timeline, user) do
1021 |> Enum.filter(fn activity ->
1022 contain_activity(activity, user)