89 lines
2.9 KiB
Elixir
89 lines
2.9 KiB
Elixir
# Portions of this file are derived from Pleroma:
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social>
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# SPDX-License-Identifier: AGPL-3.0-only
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# Upstream: https://git.pleroma.social/pleroma/pleroma/blob/develop/lib/pleroma/web/activity_pub/relay.ex
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defmodule Mobilizon.Service.ActivityPub.Relay do
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@moduledoc """
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Handles following and unfollowing relays and instances
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"""
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alias Mobilizon.Activity
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alias Mobilizon.Actors
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alias Mobilizon.Actors.Actor
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alias Mobilizon.Service.ActivityPub
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alias MobilizonWeb.API.Follows
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require Logger
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def get_actor do
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with {:ok, %Actor{} = actor} <-
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Actors.get_or_create_service_actor_by_url("#{MobilizonWeb.Endpoint.url()}/relay") do
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actor
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end
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end
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def follow(target_instance) do
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with %Actor{} = local_actor <- get_actor(),
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{:ok, %Actor{} = target_actor} <- ActivityPub.get_or_fetch_by_url(target_instance),
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{:ok, activity} <- Follows.follow(local_actor, target_actor) do
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Logger.info("Relay: followed instance #{target_instance}; id=#{activity.data["id"]}")
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{:ok, activity}
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else
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e ->
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Logger.warn("Error while following remote instance: #{inspect(e)}")
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{:error, e}
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end
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end
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def unfollow(target_instance) do
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with %Actor{} = local_actor <- get_actor(),
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{:ok, %Actor{} = target_actor} <- ActivityPub.get_or_fetch_by_url(target_instance),
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{:ok, activity} <- Follows.unfollow(local_actor, target_actor) do
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Logger.info("Relay: unfollowed instance #{target_instance}: id=#{activity.data["id"]}")
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{:ok, activity}
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else
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e ->
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Logger.warn("Error while unfollowing remote instance: #{inspect(e)}")
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{:error, e}
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end
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end
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def accept(target_instance) do
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with %Actor{} = local_actor <- get_actor(),
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{:ok, %Actor{} = target_actor} <- ActivityPub.get_or_fetch_by_url(target_instance),
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{:ok, activity} <- Follows.accept(target_actor, local_actor) do
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{:ok, activity}
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end
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end
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# def reject(target_instance) do
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# with %Actor{} = local_actor <- get_actor(),
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# {:ok, %Actor{} = target_actor} <- Activity.get_or_fetch_by_url(target_instance),
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# {:ok, activity} <- Follows.reject(target_actor, local_actor) do
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# {:ok, activity}
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# end
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# end
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@doc """
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Publish an activity to all relays following this instance
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"""
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def publish(%Activity{data: %{"object" => object}} = _activity) do
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with %Actor{id: actor_id} = actor <- get_actor(),
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{:ok, object} <-
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Mobilizon.Service.ActivityPub.Transmogrifier.fetch_obj_helper_as_activity_streams(
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object
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) do
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ActivityPub.announce(actor, object, "#{object["id"]}/announces/#{actor_id}", true, false)
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else
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e ->
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Logger.error("Error while getting local instance actor: #{inspect(e)}")
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end
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end
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def publish(err) do
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Logger.error("Tried to publish a bad activity")
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Logger.debug(inspect(err))
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nil
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end
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end
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