1 defmodule Pleroma.Web.ActivityPub.ActivityPub do
2 alias Pleroma.{Activity, Repo, Object, Upload, User, Web}
3 alias Ecto.{Changeset, UUID}
5 import Pleroma.Web.ActivityPub.Utils
8 def insert(map, local \\ true) when is_map(map) do
9 with nil <- Activity.get_by_ap_id(map["id"]),
10 map <- lazy_put_activity_defaults(map),
11 :ok <- insert_full_object(map) do
12 Repo.insert(%Activity{data: map, local: local})
14 %Activity{} = activity -> {:ok, activity}
15 error -> {:error, error}
19 def create(to, actor, context, object, additional \\ %{}, published \\ nil, local \\ true) do
20 with create_data <- make_create_data(%{to: to, actor: actor, published: published, context: context, object: object}, additional),
21 {:ok, activity} <- insert(create_data, local),
22 :ok <- maybe_federate(activity) do
27 # TODO: This is weird, maybe we shouldn't check here if we can make the activity.
28 def like(%User{ap_id: ap_id} = user, %Object{data: %{"id" => id}} = object, activity_id \\ nil, local \\ true) do
29 with nil <- get_existing_like(ap_id, object),
30 like_data <- make_like_data(user, object, activity_id),
31 {:ok, activity} <- insert(like_data, local),
32 {:ok, object} <- add_like_to_object(activity, object),
33 :ok <- maybe_federate(activity) do
34 {:ok, activity, object}
36 %Activity{} = activity -> {:ok, activity, object}
37 error -> {:error, error}
41 def unlike(%User{} = actor, %Object{} = object) do
42 with %Activity{} = activity <- get_existing_like(actor.ap_id, object),
43 {:ok, _activity} <- Repo.delete(activity),
44 {:ok, object} <- remove_like_from_object(activity, object) do
46 else _e -> {:ok, object}
50 def announce(%User{ap_id: ap_id} = user, %Object{data: %{"id" => id}} = object, activity_id \\ nil, local \\ true) do
51 with announce_data <- make_announce_data(user, object, activity_id),
52 {:ok, activity} <- insert(announce_data, local),
53 {:ok, object} <- add_announce_to_object(activity, object),
54 :ok <- maybe_federate(activity) do
55 {:ok, activity, object}
57 error -> {:error, error}
61 def follow(follower, followed, activity_id \\ nil, local \\ true) do
62 with data <- make_follow_data(follower, followed, activity_id),
63 {:ok, activity} <- insert(data, local),
64 :ok <- maybe_federate(activity) do
69 def unfollow(follower, followed, local \\ true) do
70 with %Activity{} = follow_activity <- fetch_latest_follow(follower, followed),
71 unfollow_data <- make_unfollow_data(follower, followed, follow_activity),
72 {:ok, activity} <- insert(unfollow_data, local),
73 :ok, maybe_federate(activity) do
78 def fetch_activities_for_context(context) do
79 query = from activity in Activity,
80 where: fragment("? @> ?", activity.data, ^%{ type: "Create", context: context }),
81 order_by: [desc: :inserted_at]
85 def fetch_public_activities(opts \\ %{}) do
86 public = ["https://www.w3.org/ns/activitystreams#Public"]
87 fetch_activities(public, opts)
90 defp restrict_since(query, %{"since_id" => since_id}) do
91 from activity in query, where: activity.id > ^since_id
93 defp restrict_since(query, _), do: query
95 defp restrict_recipients(query, recipients) do
96 Enum.reduce(recipients, query, fn (recipient, q) ->
97 map = %{ to: [recipient] }
99 or_where: fragment(~s(? @> ?), activity.data, ^map)
103 defp restrict_local(query, %{"local_only" => true}) do
104 from activity in query, where: activity.local == true
106 defp restrict_local(query, _), do: query
108 defp restrict_max(query, %{"max_id" => max_id}) do
109 from activity in query, where: activity.id < ^max_id
111 defp restrict_max(query, _), do: query
113 defp restrict_actor(query, %{"actor_id" => actor_id}) do
114 from activity in query,
115 where: fragment("?->>'actor' = ?", activity.data, ^actor_id)
117 defp restrict_actor(query, _), do: query
119 def fetch_activities(recipients, opts \\ %{}) do
120 base_query = from activity in Activity,
122 order_by: [desc: :inserted_at]
125 |> restrict_recipients(recipients)
126 |> restrict_since(opts)
127 |> restrict_local(opts)
128 |> restrict_max(opts)
129 |> restrict_actor(opts)
135 data = Upload.store(file)
136 Repo.insert(%Object{data: data})