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})
29 activity = Repo.one(query)
30 {:ok, activity, object}
36 "to" => [User.ap_followers(user)]
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 activities that already had this. Could be done in a seperate process.
51 relevant_activities = Activity.all_by_object_ap_id(id)
52 Enum.map(relevant_activities, fn (activity) ->
53 new_activity_data = activity.data |> Map.put("object", new_data)
54 changeset = Ecto.Changeset.change(activity, data: new_activity_data)
55 Repo.update(changeset)
57 {:ok, activity, object}
61 def generate_activity_id do
62 generate_id("activities")
65 def generate_context_id do
66 generate_id("contexts")
69 def generate_object_id do
70 generate_id("objects")
73 def generate_id(type) do
74 "#{Pleroma.Web.base_url()}/#{type}/#{Ecto.UUID.generate}"
77 def fetch_public_activities(opts \\ %{}) do
78 public = ["https://www.w3.org/ns/activitystreams#Public"]
79 fetch_activities(public, opts)
82 def fetch_activities(recipients, opts \\ %{}) do
83 since_id = opts["since_id"] || 0
85 query = from activity in Activity,
87 order_by: [desc: :inserted_at]
89 query = Enum.reduce(recipients, query, fn (recipient, q) ->
90 map = %{ to: [recipient] }
92 or_where: fragment(~s(? @> ?), activity.data, ^map)
95 query = from activity in query,
96 where: activity.id > ^since_id
98 query = if opts["max_id"] do
99 from activity in query, where: activity.id < ^opts["max_id"]
108 def fetch_activities_for_context(context) do
109 query = from activity in Activity,
110 where: fragment("? @> ?", activity.data, ^%{ context: context })
114 def upload(%Plug.Upload{} = file) do
115 data = Upload.store(file)
116 Repo.insert(%Object{data: data})
120 DateTime.utc_now() |> DateTime.to_iso8601