defmodule Mobilizon.Service.ActivityPub.Converter.Actor do @moduledoc """ Actor converter. This module allows to convert events from ActivityStream format to our own internal one, and back. """ alias Mobilizon.Actors.Actor, as: ActorModel alias Mobilizon.Service.ActivityPub.{Converter, Convertible, Utils} @behaviour Converter defimpl Convertible, for: ActorModel do alias Mobilizon.Service.ActivityPub.Converter.Actor, as: ActorConverter defdelegate model_to_as(actor), to: ActorConverter end @doc """ Converts an AP object data to our internal data structure. """ @impl Converter @spec as_to_model_data(map) :: map def as_to_model_data(data) do avatar = data["icon"]["url"] && %{ "name" => data["icon"]["name"] || "avatar", "url" => MobilizonWeb.MediaProxy.url(data["icon"]["url"]) } banner = data["image"]["url"] && %{ "name" => data["image"]["name"] || "banner", "url" => MobilizonWeb.MediaProxy.url(data["image"]["url"]) } actor_data = %{ url: data["id"], avatar: avatar, banner: banner, name: data["name"], preferred_username: data["preferredUsername"], summary: data["summary"], keys: data["publicKey"]["publicKeyPem"], inbox_url: data["inbox"], outbox_url: data["outbox"], following_url: data["following"], followers_url: data["followers"], shared_inbox_url: data["endpoints"]["sharedInbox"], domain: URI.parse(data["id"]).host, manually_approves_followers: data["manuallyApprovesFollowers"], type: data["type"] } {:ok, actor_data} end @doc """ Convert an actor struct to an ActivityStream representation. """ @impl Converter @spec model_to_as(ActorModel.t()) :: map def model_to_as(%ActorModel{} = actor) do actor_data = %{ "id" => actor.url, "type" => actor.type, "preferredUsername" => actor.preferred_username, "name" => actor.name, "summary" => actor.summary, "following" => actor.following_url, "followers" => actor.followers_url, "inbox" => actor.inbox_url, "outbox" => actor.outbox_url, "url" => actor.url, "endpoints" => %{ "sharedInbox" => actor.shared_inbox_url }, "manuallyApprovesFollowers" => actor.manually_approves_followers, "publicKey" => %{ "id" => "#{actor.url}#main-key", "owner" => actor.url, "publicKeyPem" => if(is_nil(actor.domain) and not is_nil(actor.keys), do: Utils.pem_to_public_key_pem(actor.keys), else: actor.keys ) } } actor_data = if is_nil(actor.avatar) do actor_data else Map.put(actor_data, "icon", %{ "type" => "Image", "mediaType" => actor.avatar.content_type, "url" => actor.avatar.url }) end if is_nil(actor.banner) do actor_data else Map.put(actor_data, "image", %{ "type" => "Image", "mediaType" => actor.banner.content_type, "url" => actor.banner.url }) end end end