1 defmodule Pleroma.Web.ActivityPub.ActivityPub do
3 alias Pleroma.{Activity, Object, Upload, User}
6 def insert(map) when is_map(map) do
8 |> Map.put_new_lazy("id", &generate_activity_id/0)
9 |> Map.put_new_lazy("published", &make_date/0)
11 map = if is_map(map["object"]) do
12 object = Map.put_new_lazy(map["object"], "id", &generate_object_id/0)
13 Repo.insert!(%Object{data: object})
14 Map.put(map, "object", object)
19 Repo.insert(%Activity{data: map})
22 def create(to, actor, context, object, additional \\ %{}, published \\ nil) do
23 published = published || make_date()
28 "actor" => actor.ap_id,
30 "published" => published,
33 |> Map.merge(additional)
35 with {:ok, activity} <- insert(activity) do
37 Pleroma.Web.Federator.enqueue(:publish, activity)
44 def like(%User{ap_id: ap_id} = user, %Object{data: %{ "id" => id}} = object) do
46 # There's already a like here, so return the original activity.
47 ap_id in (object.data["likes"] || []) ->
48 query = from activity in Activity,
49 where: fragment("? @> ?", activity.data, ^%{actor: ap_id, object: id, type: "Like"})
51 activity = Repo.one(query)
52 {:ok, activity, object}
58 "to" => [User.ap_followers(user), object.data["actor"]]
61 {:ok, activity} = insert(data)
63 likes = [ap_id | (object.data["likes"] || [])] |> Enum.uniq
65 new_data = object.data
66 |> Map.put("like_count", length(likes))
67 |> Map.put("likes", likes)
69 changeset = Ecto.Changeset.change(object, data: new_data)
70 {:ok, object} = Repo.update(changeset)
72 update_object_in_activities(object)
74 {:ok, activity, object}
78 defp update_object_in_activities(%{data: %{"id" => id}} = object) do
79 # Update activities that already had this. Could be done in a seperate process.
80 relevant_activities = Activity.all_by_object_ap_id(id)
81 Enum.map(relevant_activities, fn (activity) ->
82 new_activity_data = activity.data |> Map.put("object", object.data)
83 changeset = Ecto.Changeset.change(activity, data: new_activity_data)
84 Repo.update(changeset)
88 def unlike(%User{ap_id: ap_id}, %Object{data: %{ "id" => id}} = object) do
89 query = from activity in Activity,
90 where: fragment("? @> ?", activity.data, ^%{actor: ap_id, object: id, type: "Like"})
92 activity = Repo.one(query)
95 # just delete for now...
96 {:ok, _activity} = Repo.delete(activity)
98 likes = (object.data["likes"] || []) |> List.delete(ap_id)
100 new_data = object.data
101 |> Map.put("like_count", length(likes))
102 |> Map.put("likes", likes)
104 changeset = Ecto.Changeset.change(object, data: new_data)
105 {:ok, object} = Repo.update(changeset)
107 update_object_in_activities(object)
115 def generate_activity_id do
116 generate_id("activities")
119 def generate_context_id do
120 generate_id("contexts")
123 def generate_object_id do
124 generate_id("objects")
127 def generate_id(type) do
128 "#{Pleroma.Web.base_url()}/#{type}/#{Ecto.UUID.generate}"
131 def fetch_public_activities(opts \\ %{}) do
132 public = ["https://www.w3.org/ns/activitystreams#Public"]
133 fetch_activities(public, opts)
136 def fetch_activities(recipients, opts \\ %{}) do
137 since_id = opts["since_id"] || 0
139 query = from activity in Activity,
141 order_by: [desc: :inserted_at]
143 query = Enum.reduce(recipients, query, fn (recipient, q) ->
144 map = %{ to: [recipient] }
146 or_where: fragment(~s(? @> ?), activity.data, ^map)
149 query = from activity in query,
150 where: activity.id > ^since_id
152 query = if opts["max_id"] do
153 from activity in query, where: activity.id < ^opts["max_id"]
158 query = if opts["actor_id"] do
159 from activity in query,
160 where: fragment("? @> ?", activity.data, ^%{actor: opts["actor_id"]})
169 def announce(%User{ap_id: ap_id} = user, %Object{data: %{"id" => id}} = object) do
171 "type" => "Announce",
174 "to" => [User.ap_followers(user), object.data["actor"]]
177 {:ok, activity} = insert(data)
179 announcements = [ap_id | (object.data["announcements"] || [])] |> Enum.uniq
181 new_data = object.data
182 |> Map.put("announcement_count", length(announcements))
183 |> Map.put("announcements", announcements)
185 changeset = Ecto.Changeset.change(object, data: new_data)
186 {:ok, object} = Repo.update(changeset)
188 update_object_in_activities(object)
190 {:ok, activity, object}
193 def fetch_activities_for_context(context) do
194 query = from activity in Activity,
195 where: fragment("? @> ?", activity.data, ^%{ context: context })
200 data = Upload.store(file)
201 Repo.insert(%Object{data: data})
205 DateTime.utc_now() |> DateTime.to_iso8601