defmodule EventosWeb.ActivityPubController do use EventosWeb, :controller alias Eventos.{Actors, Actors.Actor, Events, Events.Event} alias EventosWeb.ActivityPub.{ObjectView, ActorView} alias Eventos.Service.ActivityPub alias Eventos.Service.Federator require Logger action_fallback(:errors) def actor(conn, %{"name" => name}) do with %Actor{} = actor <- Actors.get_local_actor_by_name(name) do conn |> put_resp_header("content-type", "application/activity+json") |> json(ActorView.render("actor.json", %{actor: actor})) end end def event(conn, %{"name" => name, "slug" => slug}) do with %Event{} = event <- Events.get_event_full_by_name_and_slug!(name, slug) do conn |> put_resp_header("content-type", "application/activity+json") |> json(ObjectView.render("event.json", %{event: event})) end end def following(conn, %{"name" => name, "page" => page}) do with %Actor{} = actor <- Actors.get_local_actor_by_name(name) do {page, _} = Integer.parse(page) conn |> put_resp_header("content-type", "application/activity+json") |> json(ActorView.render("following.json", %{actor: actor, page: page})) end end def following(conn, %{"name" => name}) do with %Actor{} = actor <- Actors.get_local_actor_by_name(name) do conn |> put_resp_header("content-type", "application/activity+json") |> json(ActorView.render("following.json", %{actor: actor})) end end def followers(conn, %{"name" => name, "page" => page}) do with %Actor{} = actor <- Actors.get_local_actor_by_name(name) do {page, _} = Integer.parse(page) conn |> put_resp_header("content-type", "application/activity+json") |> json(ActorView.render("followers.json", %{actor: actor, page: page})) end end def followers(conn, %{"name" => name}) do with %Actor{} = actor <- Actors.get_local_actor_by_name(name) do conn |> put_resp_header("content-type", "application/activity+json") |> json(ActorView.render("followers.json", %{actor: actor})) end end def outbox(conn, %{"name" => name, "page" => page}) do with {page, ""} = Integer.parse(page), %Actor{} = actor <- Actors.get_local_actor_by_name(name) do conn |> put_resp_header("content-type", "application/activity+json") |> json(ActorView.render("outbox.json", %{actor: actor, page: page})) end end def outbox(conn, %{"name" => username}) do outbox(conn, %{"name" => username, "page" => "0"}) end # TODO: Ensure that this inbox is a recipient of the message def inbox(%{assigns: %{valid_signature: true}} = conn, params) do Federator.enqueue(:incoming_ap_doc, params) json(conn, "ok") end def inbox(conn, params) do headers = Enum.into(conn.req_headers, %{}) if !String.contains?(headers["signature"] || "", params["actor"]) do Logger.info("Signature not from author, relayed message, fetching from source") ActivityPub.fetch_event_from_url(params["object"]["id"]) else Logger.info("Signature error") Logger.info("Could not validate #{params["actor"]}") Logger.info(inspect(conn.req_headers)) end json(conn, "ok") end def errors(conn, _e) do conn |> put_status(500) |> json("error") end end