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 like(%User{ap_id: ap_id} = user, %Object{data: %{ "id" => id}} = object) do
24 # There's already a like here, so return the original activity.
25 ap_id in (object.data["likes"] || []) ->
26 query = from activity in Activity,
27 where: fragment("? @> ?", activity.data, ^%{actor: ap_id, object: id, type: "Like"})
29 activity = Repo.one(query)
30 {:ok, activity, object}
36 "to" => [User.ap_followers(user), object.data["actor"]]
39 {:ok, activity} = insert(data)
41 likes = [ap_id | (object.data["likes"] || [])] |> Enum.uniq
43 new_data = object.data
44 |> Map.put("like_count", length(likes))
45 |> Map.put("likes", likes)
47 changeset = Ecto.Changeset.change(object, data: new_data)
48 {:ok, object} = Repo.update(changeset)
50 update_object_in_activities(object)
52 {:ok, activity, object}
56 defp update_object_in_activities(%{data: %{"id" => id}} = object) do
57 # Update activities that already had this. Could be done in a seperate process.
58 relevant_activities = Activity.all_by_object_ap_id(id)
59 Enum.map(relevant_activities, fn (activity) ->
60 new_activity_data = activity.data |> Map.put("object", object.data)
61 changeset = Ecto.Changeset.change(activity, data: new_activity_data)
62 Repo.update(changeset)
66 def unlike(%User{ap_id: ap_id}, %Object{data: %{ "id" => id}} = object) do
67 query = from activity in Activity,
68 where: fragment("? @> ?", activity.data, ^%{actor: ap_id, object: id, type: "Like"})
70 activity = Repo.one(query)
73 # just delete for now...
74 {:ok, _activity} = Repo.delete(activity)
76 likes = (object.data["likes"] || []) |> List.delete(ap_id)
78 new_data = object.data
79 |> Map.put("like_count", length(likes))
80 |> Map.put("likes", likes)
82 changeset = Ecto.Changeset.change(object, data: new_data)
83 {:ok, object} = Repo.update(changeset)
85 update_object_in_activities(object)
93 def generate_activity_id do
94 generate_id("activities")
97 def generate_context_id do
98 generate_id("contexts")
101 def generate_object_id do
102 generate_id("objects")
105 def generate_id(type) do
106 "#{Pleroma.Web.base_url()}/#{type}/#{Ecto.UUID.generate}"
109 def fetch_public_activities(opts \\ %{}) do
110 public = ["https://www.w3.org/ns/activitystreams#Public"]
111 fetch_activities(public, opts)
114 def fetch_activities(recipients, opts \\ %{}) do
115 since_id = opts["since_id"] || 0
117 query = from activity in Activity,
119 order_by: [desc: :inserted_at]
121 query = Enum.reduce(recipients, query, fn (recipient, q) ->
122 map = %{ to: [recipient] }
124 or_where: fragment(~s(? @> ?), activity.data, ^map)
127 query = from activity in query,
128 where: activity.id > ^since_id
130 query = if opts["max_id"] do
131 from activity in query, where: activity.id < ^opts["max_id"]
140 def announce(%User{ap_id: ap_id} = user, %Object{data: %{"id" => id}} = object) do
142 "type" => "Announce",
145 "to" => [User.ap_followers(user), object.data["actor"]]
148 {:ok, activity} = insert(data)
150 announcements = [ap_id | (object.data["announcements"] || [])] |> Enum.uniq
152 new_data = object.data
153 |> Map.put("announcement_count", length(announcements))
154 |> Map.put("announcements", announcements)
156 changeset = Ecto.Changeset.change(object, data: new_data)
157 {:ok, object} = Repo.update(changeset)
159 update_object_in_activities(object)
161 {:ok, activity, object}
164 def fetch_activities_for_context(context) do
165 query = from activity in Activity,
166 where: fragment("? @> ?", activity.data, ^%{ context: context })
170 def upload(%Plug.Upload{} = file) do
171 data = Upload.store(file)
172 Repo.insert(%Object{data: data})
176 DateTime.utc_now() |> DateTime.to_iso8601