defmodule Pleroma.Web.OStatus.OStatusController do use Pleroma.Web, :controller alias Pleroma.{User, Activity, Object} alias Pleroma.Web.OStatus.{FeedRepresenter, ActivityRepresenter} alias Pleroma.Repo alias Pleroma.Web.{OStatus, Federator} alias Pleroma.Web.XML alias Pleroma.Web.ActivityPub.ObjectView alias Pleroma.Web.ActivityPub.ActivityPubController alias Pleroma.Web.ActivityPub.ActivityPub alias Pleroma.Router.Helpers, as: Routes plug(Pleroma.Web.FederatingPlug when action in [:salmon_incoming]) action_fallback(:errors) def feed_redirect(conn, %{"nickname" => nickname}) do case get_format(conn) do "html" -> Fallback.RedirectController.redirector(conn, nil) "activity+json" -> ActivityPubController.call(conn, :user) _ -> with %User{} = user <- User.get_cached_by_nickname(nickname) do redirect(conn, external: OStatus.feed_path(user)) else nil -> {:error, :not_found} end end end def feed(conn, %{"nickname" => nickname} = params) do with %User{} = user <- User.get_cached_by_nickname(nickname) do query_params = Map.take(params, ["max_id"]) |> Map.merge(%{"whole_db" => true, "actor_id" => user.ap_id}) activities = ActivityPub.fetch_public_activities(query_params) |> Enum.reverse() response = user |> FeedRepresenter.to_simple_form(activities, [user]) |> :xmerl.export_simple(:xmerl_xml) |> to_string conn |> put_resp_content_type("application/atom+xml") |> send_resp(200, response) else nil -> {:error, :not_found} end end defp decode_or_retry(body) do with {:ok, magic_key} <- Pleroma.Web.Salmon.fetch_magic_key(body), {:ok, doc} <- Pleroma.Web.Salmon.decode_and_validate(magic_key, body) do {:ok, doc} else _e -> with [decoded | _] <- Pleroma.Web.Salmon.decode(body), doc <- XML.parse_document(decoded), uri when not is_nil(uri) <- XML.string_from_xpath("/entry/author[1]/uri", doc), {:ok, _} <- Pleroma.Web.OStatus.make_user(uri, true), {:ok, magic_key} <- Pleroma.Web.Salmon.fetch_magic_key(body), {:ok, doc} <- Pleroma.Web.Salmon.decode_and_validate(magic_key, body) do {:ok, doc} end end end def salmon_incoming(conn, _) do {:ok, body, _conn} = read_body(conn) {:ok, doc} = decode_or_retry(body) Federator.enqueue(:incoming_doc, doc) conn |> send_resp(200, "") end def object(conn, %{"uuid" => uuid}) do if get_format(conn) == "activity+json" do ActivityPubController.call(conn, :object) else with id <- o_status_url(conn, :object, uuid), {_, %Activity{} = activity} <- {:activity, Activity.get_create_activity_by_object_ap_id(id)}, {_, true} <- {:public?, ActivityPub.is_public?(activity)}, %User{} = user <- User.get_cached_by_ap_id(activity.data["actor"]) do case get_format(conn) do "html" -> redirect(conn, to: "/notice/#{activity.id}") _ -> represent_activity(conn, nil, activity, user) end else {:public?, false} -> {:error, :not_found} {:activity, nil} -> {:error, :not_found} e -> e end end end def activity(conn, %{"uuid" => uuid}) do with id <- o_status_url(conn, :activity, uuid), {_, %Activity{} = activity} <- {:activity, Activity.normalize(id)}, {_, true} <- {:public?, ActivityPub.is_public?(activity)}, %User{} = user <- User.get_cached_by_ap_id(activity.data["actor"]) do case format = get_format(conn) do "html" -> redirect(conn, to: "/notice/#{activity.id}") _ -> represent_activity(conn, format, activity, user) end else {:public?, false} -> {:error, :not_found} {:activity, nil} -> {:error, :not_found} e -> e end end def notice(conn, %{"id" => id}) do with {_, %Activity{} = activity} <- {:activity, Repo.get(Activity, id)}, {_, true} <- {:public?, ActivityPub.is_public?(activity)}, %User{} = user <- User.get_cached_by_ap_id(activity.data["actor"]) do case format = get_format(conn) do "html" -> serve_static_with_meta(conn, activity) _ -> represent_activity(conn, format, activity, user) end else {:public?, false} -> {:error, :not_found} {:activity, nil} -> {:error, :not_found} e -> e end end defp serve_static_with_meta(conn, activity) do {:ok, index_content } = File.read(Application.app_dir(:pleroma, "priv/static/index.html")) links = OStatus.metadata(request_url(conn)) response = String.replace(index_content, "", links) conn |> put_resp_content_type("text/html") |> send_resp(200, response) end defp represent_activity( conn, "activity+json", %Activity{data: %{"type" => "Create"}} = activity, _user ) do object = Object.normalize(activity.data["object"]) conn |> put_resp_header("content-type", "application/activity+json") |> json(ObjectView.render("object.json", %{object: object})) end defp represent_activity(_conn, "activity+json", _, _) do {:error, :not_found} end defp represent_activity(conn, _, activity, user) do response = activity |> ActivityRepresenter.to_simple_form(user, true) |> ActivityRepresenter.wrap_with_entry() |> :xmerl.export_simple(:xmerl_xml) |> to_string conn |> put_resp_content_type("application/atom+xml") |> send_resp(200, response) end def errors(conn, {:error, :not_found}) do conn |> put_status(404) |> text("Not found") end def errors(conn, _) do conn |> put_status(500) |> text("Something went wrong") end end