X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fweb%2Factivity_pub%2Factivity_pub.ex;h=bff3025ed7b4ac2a5964d378d8e659313b3e1f5a;hb=e8c2f9a73a37636a9a8ed5c2998617b841f482da;hp=06e8c3f1c28945370e547284d9cdc274cfdcd65e;hpb=7e384a2425b5188ca76aad4b97172b553ca9b640;p=akkoma diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex index 06e8c3f1c..a345372e2 100644 --- a/lib/pleroma/web/activity_pub/activity_pub.ex +++ b/lib/pleroma/web/activity_pub/activity_pub.ex @@ -3,13 +3,24 @@ # SPDX-License-Identifier: AGPL-3.0-only defmodule Pleroma.Web.ActivityPub.ActivityPub do - alias Pleroma.{Activity, Repo, Object, Upload, User, Notification, Instances} - alias Pleroma.Web.ActivityPub.{Transmogrifier, MRF} - alias Pleroma.Web.WebFinger + alias Pleroma.Activity + alias Pleroma.Instances + alias Pleroma.Notification + alias Pleroma.Object + alias Pleroma.Object.Fetcher + alias Pleroma.Pagination + alias Pleroma.Repo + alias Pleroma.Upload + alias Pleroma.User + alias Pleroma.Web.ActivityPub.MRF + alias Pleroma.Web.ActivityPub.Transmogrifier alias Pleroma.Web.Federator - alias Pleroma.Web.OStatus + alias Pleroma.Web.WebFinger + import Ecto.Query import Pleroma.Web.ActivityPub.Utils + import Pleroma.Web.ActivityPub.Visibility + require Logger @httpoison Application.get_env(:pleroma, :httpoison) @@ -19,19 +30,19 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do defp get_recipients(%{"type" => "Announce"} = data) do to = data["to"] || [] cc = data["cc"] || [] - recipients = to ++ cc actor = User.get_cached_by_ap_id(data["actor"]) - recipients - |> Enum.filter(fn recipient -> - case User.get_cached_by_ap_id(recipient) do - nil -> - true - - user -> - User.following?(user, actor) - end - end) + recipients = + (to ++ cc) + |> Enum.filter(fn recipient -> + case User.get_cached_by_ap_id(recipient) do + nil -> + true + + user -> + User.following?(user, actor) + end + end) {recipients, to, cc} end @@ -71,15 +82,44 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do defp check_remote_limit(_), do: true - def insert(map, local \\ true) when is_map(map) do + def increase_note_count_if_public(actor, object) do + if is_public?(object), do: User.increase_note_count(actor), else: {:ok, actor} + end + + def decrease_note_count_if_public(actor, object) do + if is_public?(object), do: User.decrease_note_count(actor), else: {:ok, actor} + end + + def increase_replies_count_if_reply(%{ + "object" => %{"inReplyTo" => reply_ap_id} = object, + "type" => "Create" + }) do + if is_public?(object) do + Object.increase_replies_count(reply_ap_id) + end + end + + def increase_replies_count_if_reply(_create_data), do: :noop + + def decrease_replies_count_if_reply(%Object{ + data: %{"inReplyTo" => reply_ap_id} = object + }) do + if is_public?(object) do + Object.decrease_replies_count(reply_ap_id) + end + end + + def decrease_replies_count_if_reply(_object), do: :noop + + def insert(map, local \\ true, fake \\ false) when is_map(map) do with nil <- Activity.normalize(map), - map <- lazy_put_activity_defaults(map), + map <- lazy_put_activity_defaults(map, fake), :ok <- check_actor_is_active(map["actor"]), {_, true} <- {:remote_limit_error, check_remote_limit(map)}, {:ok, map} <- MRF.filter(map), - :ok <- insert_full_object(map) do - {recipients, _, _} = get_recipients(map) - + {recipients, _, _} = get_recipients(map), + {:fake, false, map, recipients} <- {:fake, fake, map, recipients}, + {:ok, map, object} <- insert_full_object(map) do {:ok, activity} = Repo.insert(%Activity{ data: map, @@ -88,6 +128,14 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do recipients: recipients }) + # Splice in the child object if we have one. + activity = + if !is_nil(object) do + Map.put(activity, :object, object) + else + activity + end + Task.start(fn -> Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity) end) @@ -96,8 +144,23 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do stream_out(activity) {:ok, activity} else - %Activity{} = activity -> {:ok, activity} - error -> {:error, error} + %Activity{} = activity -> + {:ok, activity} + + {:fake, true, map, recipients} -> + activity = %Activity{ + data: map, + local: local, + actor: map["actor"], + recipients: recipients, + id: "pleroma:fakeid" + } + + Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity) + {:ok, activity} + + error -> + {:error, error} end end @@ -105,6 +168,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do public = "https://www.w3.org/ns/activitystreams#Public" if activity.data["type"] in ["Create", "Announce", "Delete"] do + object = Object.normalize(activity.data["object"]) Pleroma.Web.Streamer.stream("user", activity) Pleroma.Web.Streamer.stream("list", activity) @@ -116,12 +180,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do end if activity.data["type"] in ["Create"] do - activity.data["object"] + object.data |> Map.get("tag", []) |> Enum.filter(fn tag -> is_bitstring(tag) end) - |> Enum.map(fn tag -> Pleroma.Web.Streamer.stream("hashtag:" <> tag, activity) end) + |> Enum.each(fn tag -> Pleroma.Web.Streamer.stream("hashtag:" <> tag, activity) end) - if activity.data["object"]["attachment"] != [] do + if object.data["attachment"] != [] do Pleroma.Web.Streamer.stream("public:media", activity) if activity.local do @@ -140,7 +204,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do end end - def create(%{to: to, actor: actor, context: context, object: object} = params) do + def create(%{to: to, actor: actor, context: context, object: object} = params, fake \\ false) do additional = params[:additional] || %{} # only accept false as false value local = !(params[:local] == false) @@ -151,11 +215,17 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do %{to: to, actor: actor, published: published, context: context, object: object}, additional ), - {:ok, activity} <- insert(create_data, local), - # Changing note count prior to enqueuing federation task in order to avoid race conditions on updating user.info - {:ok, _actor} <- User.increase_note_count(actor), + {:ok, activity} <- insert(create_data, local, fake), + {:fake, false, activity} <- {:fake, fake, activity}, + _ <- increase_replies_count_if_reply(create_data), + # Changing note count prior to enqueuing federation task in order to avoid + # race conditions on updating user.info + {:ok, _actor} <- increase_note_count_if_public(actor, activity), :ok <- maybe_federate(activity) do {:ok, activity} + else + {:fake, true, activity} -> + {:ok, activity} end end @@ -163,7 +233,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do # only accept false as false value local = !(params[:local] == false) - with data <- %{"to" => to, "type" => "Accept", "actor" => actor, "object" => object}, + with data <- %{"to" => to, "type" => "Accept", "actor" => actor.ap_id, "object" => object}, {:ok, activity} <- insert(data, local), :ok <- maybe_federate(activity) do {:ok, activity} @@ -174,7 +244,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do # only accept false as false value local = !(params[:local] == false) - with data <- %{"to" => to, "type" => "Reject", "actor" => actor, "object" => object}, + with data <- %{"to" => to, "type" => "Reject", "actor" => actor.ap_id, "object" => object}, {:ok, activity} <- insert(data, local), :ok <- maybe_federate(activity) do {:ok, activity} @@ -291,18 +361,21 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do def delete(%Object{data: %{"id" => id, "actor" => actor}} = object, local \\ true) do user = User.get_cached_by_ap_id(actor) + to = (object.data["to"] || []) ++ (object.data["cc"] || []) - data = %{ - "type" => "Delete", - "actor" => actor, - "object" => id, - "to" => [user.follower_address, "https://www.w3.org/ns/activitystreams#Public"] - } - - with {:ok, _} <- Object.delete(object), + with {:ok, object, activity} <- Object.delete(object), + data <- %{ + "type" => "Delete", + "actor" => actor, + "object" => id, + "to" => to, + "deleted_activity_id" => activity && activity.id + }, {:ok, activity} <- insert(data, local), - # Changing note count prior to enqueuing federation task in order to avoid race conditions on updating user.info - {:ok, _actor} <- User.decrease_note_count(user), + _ <- decrease_replies_count_if_reply(object), + # Changing note count prior to enqueuing federation task in order to avoid + # race conditions on updating user.info + {:ok, _actor} <- decrease_note_count_if_public(user, object), :ok <- maybe_federate(activity) do {:ok, activity} end @@ -340,6 +413,49 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do end end + def flag( + %{ + actor: actor, + context: context, + account: account, + statuses: statuses, + content: content + } = params + ) do + # only accept false as false value + local = !(params[:local] == false) + forward = !(params[:forward] == false) + + additional = params[:additional] || %{} + + params = %{ + actor: actor, + context: context, + account: account, + statuses: statuses, + content: content + } + + additional = + if forward do + Map.merge(additional, %{"to" => [], "cc" => [account.ap_id]}) + else + Map.merge(additional, %{"to" => [], "cc" => []}) + end + + with flag_data <- make_flag_data(params, additional), + {:ok, activity} <- insert(flag_data, local), + :ok <- maybe_federate(activity) do + Enum.each(User.all_superusers(), fn superuser -> + superuser + |> Pleroma.Emails.AdminEmail.report(actor, account, statuses, content) + |> Pleroma.Emails.Mailer.deliver_async() + end) + + {:ok, activity} + end + end + def fetch_activities_for_context(context, opts \\ %{}) do public = ["https://www.w3.org/ns/activitystreams#Public"] @@ -366,6 +482,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do ), order_by: [desc: :id] ) + |> Activity.with_preloaded_object() Repo.all(query) end @@ -375,12 +492,36 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do q |> restrict_unlisted() - |> Repo.all() + |> Pagination.fetch_paginated(opts) |> Enum.reverse() end @valid_visibilities ~w[direct unlisted public private] + defp restrict_visibility(query, %{visibility: visibility}) + when is_list(visibility) do + if Enum.all?(visibility, &(&1 in @valid_visibilities)) do + query = + from( + a in query, + where: + fragment( + "activity_visibility(?, ?, ?) = ANY (?)", + a.actor, + a.recipients, + a.data, + ^visibility + ) + ) + + Ecto.Adapters.SQL.to_sql(:all, Repo, query) + + query + else + Logger.error("Could not restrict visibility to #{visibility}") + end + end + defp restrict_visibility(query, %{visibility: visibility}) when visibility in @valid_visibilities do query = @@ -430,37 +571,49 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do defp restrict_since(query, _), do: query + defp restrict_tag_reject(_query, %{"tag_reject" => _tag_reject, "skip_preload" => true}) do + raise "Can't use the child object without preloading!" + end + defp restrict_tag_reject(query, %{"tag_reject" => tag_reject}) when is_list(tag_reject) and tag_reject != [] do from( - activity in query, - where: fragment("(not (? #> '{\"object\",\"tag\"}') \\?| ?)", activity.data, ^tag_reject) + [_activity, object] in query, + where: fragment("not (?)->'tag' \\?| (?)", object.data, ^tag_reject) ) end defp restrict_tag_reject(query, _), do: query + defp restrict_tag_all(_query, %{"tag_all" => _tag_all, "skip_preload" => true}) do + raise "Can't use the child object without preloading!" + end + defp restrict_tag_all(query, %{"tag_all" => tag_all}) when is_list(tag_all) and tag_all != [] do from( - activity in query, - where: fragment("(? #> '{\"object\",\"tag\"}') \\?& ?", activity.data, ^tag_all) + [_activity, object] in query, + where: fragment("(?)->'tag' \\?& (?)", object.data, ^tag_all) ) end defp restrict_tag_all(query, _), do: query + defp restrict_tag(_query, %{"tag" => _tag, "skip_preload" => true}) do + raise "Can't use the child object without preloading!" + end + defp restrict_tag(query, %{"tag" => tag}) when is_list(tag) do from( - activity in query, - where: fragment("(? #> '{\"object\",\"tag\"}') \\?| ?", activity.data, ^tag) + [_activity, object] in query, + where: fragment("(?)->'tag' \\?| (?)", object.data, ^tag) ) end defp restrict_tag(query, %{"tag" => tag}) when is_binary(tag) do from( - activity in query, - where: fragment("? <@ (? #> '{\"object\",\"tag\"}')", ^tag, activity.data) + [_activity, object] in query, + where: fragment("(?)->'tag' \\? (?)", object.data, ^tag) ) end @@ -494,26 +647,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do ) end - defp restrict_limit(query, %{"limit" => limit}) do - from(activity in query, limit: ^limit) - end - - defp restrict_limit(query, _), do: query - defp restrict_local(query, %{"local_only" => true}) do from(activity in query, where: activity.local == true) end defp restrict_local(query, _), do: query - defp restrict_max(query, %{"max_id" => ""}), do: query - - defp restrict_max(query, %{"max_id" => max_id}) do - from(activity in query, where: activity.id < ^max_id) - end - - defp restrict_max(query, _), do: query - defp restrict_actor(query, %{"actor_id" => actor_id}) do from(activity in query, where: activity.actor == ^actor_id) end @@ -521,7 +660,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do defp restrict_actor(query, _), do: query defp restrict_type(query, %{"type" => type}) when is_binary(type) do - restrict_type(query, %{"type" => [type]}) + from(activity in query, where: fragment("?->>'type' = ?", activity.data, ^type)) end defp restrict_type(query, %{"type" => type}) do @@ -533,16 +672,20 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do defp restrict_favorited_by(query, %{"favorited_by" => ap_id}) do from( activity in query, - where: fragment("? <@ (? #> '{\"object\",\"likes\"}')", ^ap_id, activity.data) + where: fragment(~s(? <@ (? #> '{"object","likes"}'\)), ^ap_id, activity.data) ) end defp restrict_favorited_by(query, _), do: query + defp restrict_media(_query, %{"only_media" => _val, "skip_preload" => true}) do + raise "Can't use the child object without preloading!" + end + defp restrict_media(query, %{"only_media" => val}) when val == "true" or val == "1" do from( - activity in query, - where: fragment("not (? #> '{\"object\",\"attachment\"}' = ?)", activity.data, ^[]) + [_activity, object] in query, + where: fragment("not (?)->'attachment' = (?)", object.data, ^[]) ) end @@ -563,6 +706,20 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do defp restrict_reblogs(query, _), do: query + defp restrict_muted(query, %{"with_muted" => val}) when val in [true, "true", "1"], do: query + + defp restrict_muted(query, %{"muting_user" => %User{info: info}}) do + mutes = info.mutes + + from( + activity in query, + where: fragment("not (? = ANY(?))", activity.actor, ^mutes), + where: fragment("not (?->'to' \\?| ?)", activity.data, ^mutes) + ) + end + + defp restrict_muted(query, _), do: query + defp restrict_blocked(query, %{"blocking_user" => %User{info: info}}) do blocks = info.blocks || [] domain_blocks = info.domain_blocks || [] @@ -570,7 +727,14 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do from( activity in query, where: fragment("not (? = ANY(?))", activity.actor, ^blocks), - where: fragment("not (?->'to' \\?| ?)", activity.data, ^blocks), + where: fragment("not (? && ?)", activity.recipients, ^blocks), + where: + fragment( + "not (?->>'type' = 'Announce' and ?->'to' \\?| ?)", + activity.data, + activity.data, + ^blocks + ), where: fragment("not (split_part(?, '/', 3) = ANY(?))", activity.actor, ^domain_blocks) ) end @@ -595,44 +759,65 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do defp restrict_pinned(query, _), do: query + defp restrict_muted_reblogs(query, %{"muting_user" => %User{info: info}}) do + muted_reblogs = info.muted_reblogs || [] + + from( + activity in query, + where: + fragment( + "not ( ?->>'type' = 'Announce' and ? = ANY(?))", + activity.data, + activity.actor, + ^muted_reblogs + ) + ) + end + + defp restrict_muted_reblogs(query, _), do: query + + defp maybe_preload_objects(query, %{"skip_preload" => true}), do: query + + defp maybe_preload_objects(query, _) do + query + |> Activity.with_preloaded_object() + end + def fetch_activities_query(recipients, opts \\ %{}) do - base_query = - from( - activity in Activity, - limit: 20, - order_by: [fragment("? desc nulls last", activity.id)] - ) + base_query = from(activity in Activity) base_query + |> maybe_preload_objects(opts) |> restrict_recipients(recipients, opts["user"]) |> restrict_tag(opts) |> restrict_tag_reject(opts) |> restrict_tag_all(opts) |> restrict_since(opts) |> restrict_local(opts) - |> restrict_limit(opts) - |> restrict_max(opts) |> restrict_actor(opts) |> restrict_type(opts) |> restrict_favorited_by(opts) |> restrict_blocked(opts) + |> restrict_muted(opts) |> restrict_media(opts) |> restrict_visibility(opts) |> restrict_replies(opts) |> restrict_reblogs(opts) |> restrict_pinned(opts) + |> restrict_muted_reblogs(opts) + |> Activity.restrict_deactivated_users() end def fetch_activities(recipients, opts \\ %{}) do fetch_activities_query(recipients, opts) - |> Repo.all() + |> Pagination.fetch_paginated(opts) |> Enum.reverse() end def fetch_activities_bounded(recipients_to, recipients_cc, opts \\ %{}) do fetch_activities_query([], opts) |> restrict_to_cc(recipients_to, recipients_cc) - |> Repo.all() + |> Pagination.fetch_paginated(opts) |> Enum.reverse() end @@ -697,7 +882,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do end def fetch_and_prepare_user_from_ap_id(ap_id) do - with {:ok, data} <- fetch_and_contain_remote_object_from_id(ap_id) do + with {:ok, data} <- Fetcher.fetch_and_contain_remote_object_from_id(ap_id) do user_data_from_user_object(data) else e -> Logger.error("Could not decode user at fetch #{ap_id}, #{inspect(e)}") @@ -744,40 +929,44 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do public = is_public?(activity) - remote_inboxes = - (Pleroma.Web.Salmon.remote_users(activity) ++ remote_followers) - |> Enum.filter(fn user -> User.ap_enabled?(user) end) - |> Enum.map(fn %{info: %{source_data: data}} -> - (is_map(data["endpoints"]) && Map.get(data["endpoints"], "sharedInbox")) || data["inbox"] - end) - |> Enum.uniq() - |> Enum.filter(fn inbox -> should_federate?(inbox, public) end) - |> Instances.filter_reachable() - {:ok, data} = Transmogrifier.prepare_outgoing(activity.data) json = Jason.encode!(data) - Enum.each(remote_inboxes, fn inbox -> - Federator.enqueue(:publish_single_ap, %{ + (Pleroma.Web.Salmon.remote_users(activity) ++ remote_followers) + |> Enum.filter(fn user -> User.ap_enabled?(user) end) + |> Enum.map(fn %{info: %{source_data: data}} -> + (is_map(data["endpoints"]) && Map.get(data["endpoints"], "sharedInbox")) || data["inbox"] + end) + |> Enum.uniq() + |> Enum.filter(fn inbox -> should_federate?(inbox, public) end) + |> Instances.filter_reachable() + |> Enum.each(fn {inbox, unreachable_since} -> + Federator.publish_single_ap(%{ inbox: inbox, json: json, actor: actor, - id: activity.data["id"] + id: activity.data["id"], + unreachable_since: unreachable_since }) end) end - def publish_one(%{inbox: inbox, json: json, actor: actor, id: id}) do + def publish_one(%{inbox: inbox, json: json, actor: actor, id: id} = params) do Logger.info("Federating #{id} to #{inbox}") host = URI.parse(inbox).host digest = "SHA-256=" <> (:crypto.hash(:sha256, json) |> Base.encode64()) + date = + NaiveDateTime.utc_now() + |> Timex.format!("{WDshort}, {0D} {Mshort} {YYYY} {h24}:{m}:{s} GMT") + signature = Pleroma.Web.HTTPSignatures.sign(actor, %{ host: host, "content-length": byte_size(json), - digest: digest + digest: digest, + date: date }) with {:ok, %{status: code}} when code in 200..299 <- @@ -787,121 +976,22 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do json, [ {"Content-Type", "application/activity+json"}, + {"Date", date}, {"signature", signature}, {"digest", digest} ] ) do - Instances.set_reachable(inbox) + if !Map.has_key?(params, :unreachable_since) || params[:unreachable_since], + do: Instances.set_reachable(inbox) + result else {_post_result, response} -> - Instances.set_unreachable(inbox) + unless params[:unreachable_since], do: Instances.set_unreachable(inbox) {:error, response} end end - # TODO: - # This will create a Create activity, which we need internally at the moment. - def fetch_object_from_id(id) do - if object = Object.get_cached_by_ap_id(id) do - {:ok, object} - else - Logger.info("Fetching #{id} via AP") - - with {:ok, data} <- fetch_and_contain_remote_object_from_id(id), - nil <- Object.normalize(data), - params <- %{ - "type" => "Create", - "to" => data["to"], - "cc" => data["cc"], - "actor" => data["actor"] || data["attributedTo"], - "object" => data - }, - :ok <- Transmogrifier.contain_origin(id, params), - {:ok, activity} <- Transmogrifier.handle_incoming(params) do - {:ok, Object.normalize(activity.data["object"])} - else - {:error, {:reject, nil}} -> - {:reject, nil} - - object = %Object{} -> - {:ok, object} - - _e -> - Logger.info("Couldn't get object via AP, trying out OStatus fetching...") - - case OStatus.fetch_activity_from_url(id) do - {:ok, [activity | _]} -> {:ok, Object.normalize(activity.data["object"])} - e -> e - end - end - end - end - - def fetch_and_contain_remote_object_from_id(id) do - Logger.info("Fetching #{id} via AP") - - with true <- String.starts_with?(id, "http"), - {:ok, %{body: body, status: code}} when code in 200..299 <- - @httpoison.get( - id, - [{:Accept, "application/activity+json"}] - ), - {:ok, data} <- Jason.decode(body), - :ok <- Transmogrifier.contain_origin_from_id(id, data) do - {:ok, data} - else - e -> - {:error, e} - end - end - - def is_public?(%Object{data: %{"type" => "Tombstone"}}), do: false - def is_public?(%Object{data: data}), do: is_public?(data) - def is_public?(%Activity{data: data}), do: is_public?(data) - def is_public?(%{"directMessage" => true}), do: false - - def is_public?(data) do - "https://www.w3.org/ns/activitystreams#Public" in (data["to"] ++ (data["cc"] || [])) - end - - def is_private?(activity) do - !is_public?(activity) && Enum.any?(activity.data["to"], &String.contains?(&1, "/followers")) - end - - def is_direct?(%Activity{data: %{"directMessage" => true}}), do: true - def is_direct?(%Object{data: %{"directMessage" => true}}), do: true - - def is_direct?(activity) do - !is_public?(activity) && !is_private?(activity) - end - - def visible_for_user?(activity, nil) do - is_public?(activity) - end - - def visible_for_user?(activity, user) do - x = [user.ap_id | user.following] - y = activity.data["to"] ++ (activity.data["cc"] || []) - visible_for_user?(activity, nil) || Enum.any?(x, &(&1 in y)) - end - - # guard - def entire_thread_visible_for_user?(nil, _user), do: false - - # child - def entire_thread_visible_for_user?( - %Activity{data: %{"object" => %{"inReplyTo" => parent_id}}} = tail, - user - ) - when is_binary(parent_id) do - parent = Activity.get_in_reply_to_activity(tail) - visible_for_user?(tail, user) && entire_thread_visible_for_user?(parent, user) - end - - # root - def entire_thread_visible_for_user?(tail, user), do: visible_for_user?(tail, user) - # filter out broken threads def contain_broken_threads(%Activity{} = activity, %User{} = user) do entire_thread_visible_for_user?(activity, user)