109 lines
3.2 KiB
Elixir
109 lines
3.2 KiB
Elixir
# Pleroma: A lightweight social networking server
|
|
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
|
|
# SPDX-License-Identifier: AGPL-3.0-only
|
|
|
|
defmodule Pleroma.Web.ActivityPub.Relay do
|
|
alias Pleroma.Activity
|
|
alias Pleroma.User
|
|
alias Pleroma.Web.ActivityPub.ActivityPub
|
|
alias Pleroma.Web.ActivityPub.Visibility
|
|
alias Pleroma.Web.CommonAPI
|
|
require Logger
|
|
|
|
@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} <- CommonAPI.follow(local_user, target_user) do
|
|
Logger.info("relay: followed instance: #{target_instance}; id=#{activity.data["id"]}")
|
|
{:ok, activity}
|
|
else
|
|
error -> format_error(error)
|
|
end
|
|
end
|
|
|
|
@spec unfollow(String.t(), map()) :: {:ok, Activity.t()} | {:error, any()}
|
|
def unfollow(target_instance, opts \\ %{}) do
|
|
with %User{} = local_user <- get_actor(),
|
|
{: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
|
|
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(),
|
|
true <- Visibility.public?(activity) do
|
|
CommonAPI.repeat(activity.id, user)
|
|
else
|
|
error -> format_error(error)
|
|
end
|
|
end
|
|
|
|
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
|