# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.Relay do
alias Pleroma.Activity
- alias Pleroma.Object
alias Pleroma.User
alias Pleroma.Web.ActivityPub.ActivityPub
+ alias Pleroma.Web.ActivityPub.Visibility
+ alias Pleroma.Web.CommonAPI
require Logger
- def get_actor do
- User.get_or_create_instance_user()
- end
+ @nickname "relay"
+
+ @spec ap_id() :: String.t()
+ def ap_id, do: "#{Pleroma.Web.Endpoint.url()}/#{@nickname}"
+
+ @spec get_actor() :: User.t() | nil
+ def get_actor, do: User.get_or_create_service_actor_by_ap_id(ap_id(), @nickname)
+ @spec follow(String.t()) :: {:ok, Activity.t()} | {:error, any()}
def follow(target_instance) do
with %User{} = local_user <- get_actor(),
{:ok, %User{} = target_user} <- User.get_or_fetch_by_ap_id(target_instance),
- {:ok, activity} <- ActivityPub.follow(local_user, target_user) do
+ {:ok, _, _, activity} <- CommonAPI.follow(local_user, target_user) do
Logger.info("relay: followed instance: #{target_instance}; id=#{activity.data["id"]}")
{:ok, activity}
else
- e ->
- Logger.error("error: #{inspect(e)}")
- {:error, e}
+ error -> format_error(error)
end
end
- def unfollow(target_instance) do
+ @spec unfollow(String.t(), map()) :: {:ok, Activity.t()} | {:error, any()}
+ def unfollow(target_instance, opts \\ %{}) do
with %User{} = local_user <- get_actor(),
- {:ok, %User{} = target_user} <- User.get_or_fetch_by_ap_id(target_instance),
+ {:ok, target_user} <- fetch_target_user(target_instance, opts),
{:ok, activity} <- ActivityPub.unfollow(local_user, target_user) do
+ case target_user.id do
+ nil -> User.update_following_count(local_user)
+ _ -> User.unfollow(local_user, target_user)
+ end
+
Logger.info("relay: unfollowed instance: #{target_instance}: id=#{activity.data["id"]}")
{:ok, activity}
else
- e ->
- Logger.error("error: #{inspect(e)}")
- {:error, e}
+ error -> format_error(error)
end
end
+ defp fetch_target_user(ap_id, opts) do
+ case {opts[:force], User.get_or_fetch_by_ap_id(ap_id)} do
+ {_, {:ok, %User{} = user}} -> {:ok, user}
+ {true, _} -> {:ok, %User{ap_id: ap_id}}
+ {_, error} -> error
+ end
+ end
+
+ @spec publish(any()) :: {:ok, Activity.t()} | {:error, any()}
def publish(%Activity{data: %{"type" => "Create"}} = activity) do
with %User{} = user <- get_actor(),
- %Object{} = object <- Object.normalize(activity) do
- ActivityPub.announce(user, object, nil, true, false)
+ true <- Visibility.is_public?(activity) do
+ CommonAPI.repeat(activity.id, user)
else
- e -> Logger.error("error: #{inspect(e)}")
+ error -> format_error(error)
end
end
- def publish(_), do: nil
+ def publish(_), do: {:error, "Not implemented"}
+
+ @spec list() :: {:ok, [%{actor: String.t(), followed_back: boolean()}]} | {:error, any()}
+ def list do
+ with %User{} = user <- get_actor() do
+ accepted =
+ user
+ |> following()
+ |> Enum.map(fn actor -> %{actor: actor, followed_back: true} end)
+
+ without_accept =
+ user
+ |> Pleroma.Activity.following_requests_for_actor()
+ |> Enum.map(fn activity -> %{actor: activity.data["object"], followed_back: false} end)
+ |> Enum.uniq()
+
+ {:ok, accepted ++ without_accept}
+ else
+ error -> format_error(error)
+ end
+ end
+
+ @spec following() :: [String.t()]
+ def following do
+ get_actor()
+ |> following()
+ end
+
+ defp following(user) do
+ user
+ |> User.following_ap_ids()
+ |> Enum.uniq()
+ end
+
+ defp format_error({:error, error}), do: format_error(error)
+
+ defp format_error(error) do
+ Logger.error("error: #{inspect(error)}")
+ {:error, error}
+ end
end