1 defmodule Pleroma.Web.ActivityPub.ActivityPub do
2 alias Pleroma.{Activity, Repo, Object, Upload, User, Notification}
4 import Pleroma.Web.ActivityPub.Utils
7 def insert(map, local \\ true) when is_map(map) do
8 with nil <- Activity.get_by_ap_id(map["id"]),
9 map <- lazy_put_activity_defaults(map),
10 :ok <- insert_full_object(map) do
11 {:ok, activity} = Repo.insert(%Activity{data: map, local: local, actor: map["actor"]})
12 Notification.create_notifications(activity)
16 %Activity{} = activity -> {:ok, activity}
17 error -> {:error, error}
21 def stream_out(activity) do
22 if activity.data["type"] in ["Create", "Announce"] do
23 Pleroma.Web.Streamer.stream("user", activity)
24 if Enum.member?(activity.data["to"], "https://www.w3.org/ns/activitystreams#Public") do
25 Pleroma.Web.Streamer.stream("public", activity)
27 Pleroma.Web.Streamer.stream("public:local", activity)
33 def create(to, actor, context, object, additional \\ %{}, published \\ nil, local \\ true) do
34 with create_data <- make_create_data(%{to: to, actor: actor, published: published, context: context, object: object}, additional),
35 {:ok, activity} <- insert(create_data, local),
36 :ok <- maybe_federate(activity) do
41 # TODO: This is weird, maybe we shouldn't check here if we can make the activity.
42 def like(%User{ap_id: ap_id} = user, %Object{data: %{"id" => _}} = object, activity_id \\ nil, local \\ true) do
43 with nil <- get_existing_like(ap_id, object),
44 like_data <- make_like_data(user, object, activity_id),
45 {:ok, activity} <- insert(like_data, local),
46 {:ok, object} <- add_like_to_object(activity, object),
47 :ok <- maybe_federate(activity) do
48 {:ok, activity, object}
50 %Activity{} = activity -> {:ok, activity, object}
51 error -> {:error, error}
55 def unlike(%User{} = actor, %Object{} = object) do
56 with %Activity{} = activity <- get_existing_like(actor.ap_id, object),
57 {:ok, _activity} <- Repo.delete(activity),
58 {:ok, object} <- remove_like_from_object(activity, object) do
60 else _e -> {:ok, object}
64 def announce(%User{ap_id: _} = user, %Object{data: %{"id" => _}} = object, activity_id \\ nil, local \\ true) do
65 with announce_data <- make_announce_data(user, object, activity_id),
66 {:ok, activity} <- insert(announce_data, local),
67 {:ok, object} <- add_announce_to_object(activity, object),
68 :ok <- maybe_federate(activity) do
69 {:ok, activity, object}
71 error -> {:error, error}
75 def follow(follower, followed, activity_id \\ nil, local \\ true) do
76 with data <- make_follow_data(follower, followed, activity_id),
77 {:ok, activity} <- insert(data, local),
78 :ok <- maybe_federate(activity) do
83 def unfollow(follower, followed, local \\ true) do
84 with %Activity{} = follow_activity <- fetch_latest_follow(follower, followed),
85 unfollow_data <- make_unfollow_data(follower, followed, follow_activity),
86 {:ok, activity} <- insert(unfollow_data, local),
87 :ok, maybe_federate(activity) do
92 def delete(%Object{data: %{"id" => id, "actor" => actor}} = object, local \\ true) do
93 user = User.get_cached_by_ap_id(actor)
98 "to" => [user.follower_address, "https://www.w3.org/ns/activitystreams#Public"]
100 with Repo.delete(object),
101 Repo.delete_all(Activity.all_non_create_by_object_ap_id_q(id)),
102 {:ok, activity} <- insert(data, local),
103 :ok <- maybe_federate(activity) do
108 def fetch_activities_for_context(context, opts \\ %{}) do
109 query = from activity in Activity,
110 where: fragment("?->>'type' = ? and ?->>'context' = ?", activity.data, "Create", activity.data, ^context),
111 order_by: [desc: :id]
112 query = restrict_blocked(query, opts)
116 def fetch_public_activities(opts \\ %{}) do
117 public = ["https://www.w3.org/ns/activitystreams#Public"]
118 fetch_activities(public, opts)
121 defp restrict_since(query, %{"since_id" => since_id}) do
122 from activity in query, where: activity.id > ^since_id
124 defp restrict_since(query, _), do: query
126 defp restrict_tag(query, %{"tag" => tag}) do
127 from activity in query,
128 where: fragment("? <@ (? #> '{\"object\",\"tag\"}')", ^tag, activity.data)
130 defp restrict_tag(query, _), do: query
132 defp restrict_recipients(query, recipients) do
133 Enum.reduce(recipients, query, fn (recipient, q) ->
134 map = %{ to: [recipient] }
136 or_where: fragment(~s(? @> ?), activity.data, ^map)
140 defp restrict_local(query, %{"local_only" => true}) do
141 from activity in query, where: activity.local == true
143 defp restrict_local(query, _), do: query
145 defp restrict_max(query, %{"max_id" => max_id}) do
146 from activity in query, where: activity.id < ^max_id
148 defp restrict_max(query, _), do: query
150 defp restrict_actor(query, %{"actor_id" => actor_id}) do
151 from activity in query,
152 where: activity.actor == ^actor_id
154 defp restrict_actor(query, _), do: query
156 defp restrict_type(query, %{"type" => type}) when is_binary(type) do
157 restrict_type(query, %{"type" => [type]})
159 defp restrict_type(query, %{"type" => type}) do
160 from activity in query,
161 where: fragment("?->>'type' = ANY(?)", activity.data, ^type)
163 defp restrict_type(query, _), do: query
165 defp restrict_favorited_by(query, %{"favorited_by" => ap_id}) do
166 from activity in query,
167 where: fragment("? <@ (? #> '{\"object\",\"likes\"}')", ^ap_id, activity.data)
169 defp restrict_favorited_by(query, _), do: query
171 defp restrict_media(query, %{"only_media" => val}) when val == "true" or val == "1" do
172 from activity in query,
173 where: fragment("not (? #> '{\"object\",\"attachment\"}' = ?)", activity.data, ^[])
175 defp restrict_media(query, _), do: query
177 # Only search through last 100_000 activities by default
178 defp restrict_recent(query, %{"whole_db" => true}), do: query
179 defp restrict_recent(query, _) do
180 since = (Repo.aggregate(Activity, :max, :id) || 0) - 100_000
182 from activity in query,
183 where: activity.id > ^since
186 defp restrict_blocked(query, %{"blocking_user" => %User{info: info}}) do
187 blocks = info["blocks"] || []
188 from activity in query,
189 where: fragment("not (? = ANY(?))", activity.actor, ^blocks)
191 defp restrict_blocked(query, _), do: query
193 def fetch_activities(recipients, opts \\ %{}) do
194 base_query = from activity in Activity,
196 order_by: [fragment("? desc nulls last", activity.id)]
199 |> restrict_recipients(recipients)
200 |> restrict_tag(opts)
201 |> restrict_since(opts)
202 |> restrict_local(opts)
203 |> restrict_max(opts)
204 |> restrict_actor(opts)
205 |> restrict_type(opts)
206 |> restrict_favorited_by(opts)
207 |> restrict_recent(opts)
208 |> restrict_blocked(opts)
209 |> restrict_media(opts)
215 data = Upload.store(file)
216 Repo.insert(%Object{data: data})