alias Ecto.{Changeset, UUID}
import Ecto.Query
+ # Some implementations send the actor URI as the actor field, others send the entire actor object,
+ # so figure out what the actor's URI is based on what we have.
+ def normalize_actor(actor) do
+ cond do
+ is_binary(actor) ->
+ actor
+
+ is_map(actor) ->
+ actor["id"]
+ end
+ end
+
+ def normalize_params(params) do
+ Map.put(params, "actor", normalize_actor(params["actor"]))
+ end
+
def make_json_ld_header do
%{
"@context" => [
#### Announce-related helpers
+ @doc """
+ Retruns an existing announce activity if the notice has already been announced
+ """
+ def get_existing_announce(actor, %{data: %{"id" => id}}) do
+ query =
+ from(
+ activity in Activity,
+ where: fragment("(?)->>'actor' = ?", activity.data, ^actor),
+ # this is to use the index
+ where:
+ fragment(
+ "coalesce((?)->'object'->>'id', (?)->>'object') = ?",
+ activity.data,
+ activity.data,
+ ^id
+ ),
+ where: fragment("(?)->>'type' = 'Announce'", activity.data)
+ )
+
+ Repo.one(query)
+ end
+
@doc """
Make announce activity data for the given actor and object
"""
if activity_id, do: Map.put(data, "id", activity_id), else: data
end
+ @doc """
+ Make unannounce activity data for the given actor and object
+ """
+ def make_unannounce_data(
+ %User{ap_id: ap_id} = user,
+ %Activity{data: %{"context" => context}} = activity,
+ activity_id
+ ) do
+ data = %{
+ "type" => "Undo",
+ "actor" => ap_id,
+ "object" => activity.data,
+ "to" => [user.follower_address, activity.data["actor"]],
+ "cc" => ["https://www.w3.org/ns/activitystreams#Public"],
+ "context" => context
+ }
+
+ if activity_id, do: Map.put(data, "id", activity_id), else: data
+ end
+
+ def make_unlike_data(
+ %User{ap_id: ap_id} = user,
+ %Activity{data: %{"context" => context}} = activity,
+ activity_id
+ ) do
+ data = %{
+ "type" => "Undo",
+ "actor" => ap_id,
+ "object" => activity.data,
+ "to" => [user.follower_address, activity.data["actor"]],
+ "cc" => ["https://www.w3.org/ns/activitystreams#Public"],
+ "context" => context
+ }
+
+ if activity_id, do: Map.put(data, "id", activity_id), else: data
+ end
+
def add_announce_to_object(%Activity{data: %{"actor" => actor}}, object) do
with announcements <- [actor | object.data["announcements"] || []] |> Enum.uniq() do
update_element_in_object("announcement", announcements, object)
end
end
+ def remove_announce_from_object(%Activity{data: %{"actor" => actor}}, object) do
+ with announcements <- (object.data["announcements"] || []) |> List.delete(actor) do
+ update_element_in_object("announcement", announcements, object)
+ end
+ end
+
#### Unfollow-related helpers
def make_unfollow_data(follower, followed, follow_activity) do