mobilizon.chapril.org-mobil.../lib/web/controllers/page_controller.ex
Thomas Citharel b5d9b82bdd
Refactor Mobilizon.Federation.ActivityPub and add typespecs
Signed-off-by: Thomas Citharel <tcit@tcit.fr>
2021-09-29 16:31:11 +02:00

203 lines
7.2 KiB
Elixir

defmodule Mobilizon.Web.PageController do
@moduledoc """
Controller to load our webapp
"""
use Mobilizon.Web, :controller
alias Mobilizon.Actors.Actor
alias Mobilizon.Discussions.Comment
alias Mobilizon.Events.Event
alias Mobilizon.Federation.ActivityPub
alias Mobilizon.Tombstone
alias Mobilizon.Web.{ActivityPubController, Cache, PageController}
plug(:put_layout, false)
action_fallback(Mobilizon.Web.FallbackController)
@spec my_events(Plug.Conn.t(), any) :: Plug.Conn.t()
defdelegate my_events(conn, params), to: PageController, as: :index
@spec create_event(Plug.Conn.t(), any) :: Plug.Conn.t()
defdelegate create_event(conn, params), to: PageController, as: :index
@spec list_events(Plug.Conn.t(), any) :: Plug.Conn.t()
defdelegate list_events(conn, params), to: PageController, as: :index
@spec edit_event(Plug.Conn.t(), any) :: Plug.Conn.t()
defdelegate edit_event(conn, params), to: PageController, as: :index
@spec moderation_report(Plug.Conn.t(), any) :: Plug.Conn.t()
defdelegate moderation_report(conn, params), to: PageController, as: :index
@spec participation_email_confirmation(Plug.Conn.t(), any) :: Plug.Conn.t()
defdelegate participation_email_confirmation(conn, params), to: PageController, as: :index
@spec user_email_validation(Plug.Conn.t(), any) :: Plug.Conn.t()
defdelegate user_email_validation(conn, params), to: PageController, as: :index
@spec my_groups(Plug.Conn.t(), any) :: Plug.Conn.t()
defdelegate my_groups(conn, params), to: PageController, as: :index
@typep object_type ::
:actor | :event | :comment | :resource | :post | :discussion | :todo_list | :todo
@spec index(Plug.Conn.t(), any) :: Plug.Conn.t()
def index(conn, _params), do: render(conn, :index)
@spec actor(Plug.Conn.t(), map) :: {:error, :not_found} | Plug.Conn.t()
def actor(conn, %{"name" => name}) do
{status, actor} = Cache.get_actor_by_name(name)
render_or_error(conn, &checks?/3, status, :actor, actor)
end
@spec event(Plug.Conn.t(), map) :: {:error, :not_found} | Plug.Conn.t()
def event(conn, %{"uuid" => uuid}) do
{status, event} = Cache.get_public_event_by_uuid_with_preload(uuid)
render_or_error(conn, &checks?/3, status, :event, event)
end
@spec comment(Plug.Conn.t(), map) :: {:error, :not_found} | Plug.Conn.t()
def comment(conn, %{"uuid" => uuid}) do
{status, comment} = Cache.get_comment_by_uuid_with_preload(uuid)
render_or_error(conn, &checks?/3, status, :comment, comment)
end
@spec resource(Plug.Conn.t(), map()) :: Plug.Conn.t() | {:error, :not_found}
def resource(conn, %{"uuid" => uuid}) do
{status, resource} = Cache.get_resource_by_uuid_with_preload(uuid)
render_or_error(conn, &checks?/3, status, :resource, resource)
end
@spec post(Plug.Conn.t(), map()) :: Plug.Conn.t() | {:error, :not_found}
def post(conn, %{"slug" => slug}) do
{status, post} = Cache.get_post_by_slug_with_preload(slug)
render_or_error(conn, &checks?/3, status, :post, post)
end
@spec discussion(Plug.Conn.t(), map()) :: Plug.Conn.t() | {:error, :not_found}
def discussion(conn, %{"slug" => slug}) do
{status, discussion} = Cache.get_discussion_by_slug_with_preload(slug)
render_or_error(conn, &checks?/3, status, :discussion, discussion)
end
@spec todo_list(Plug.Conn.t(), map) :: Plug.Conn.t() | {:error, :not_found}
def todo_list(conn, %{"uuid" => uuid}) do
{status, todo_list} = Cache.get_todo_list_by_uuid_with_preload(uuid)
render_or_error(conn, &checks?/3, status, :todo_list, todo_list)
end
@spec todo(Plug.Conn.t(), map) :: Plug.Conn.t() | {:error, :not_found}
def todo(conn, %{"uuid" => uuid}) do
{status, todo} = Cache.get_todo_by_uuid_with_preload(uuid)
render_or_error(conn, &checks?/3, status, :todo, todo)
end
@typep collections :: :resources | :posts | :discussions | :events | :todos
@spec resources(Plug.Conn.t(), map()) :: Plug.Conn.t()
def resources(conn, %{"name" => _name}) do
handle_collection_route(conn, :resources)
end
@spec posts(Plug.Conn.t(), map()) :: Plug.Conn.t()
def posts(conn, %{"name" => _name}) do
handle_collection_route(conn, :posts)
end
@spec discussions(Plug.Conn.t(), map()) :: Plug.Conn.t()
def discussions(conn, %{"name" => _name}) do
handle_collection_route(conn, :discussions)
end
@spec events(Plug.Conn.t(), map()) :: Plug.Conn.t()
def events(conn, %{"name" => _name}) do
handle_collection_route(conn, :events)
end
@spec todos(Plug.Conn.t(), map()) :: Plug.Conn.t()
def todos(conn, %{"name" => _name}) do
handle_collection_route(conn, :todos)
end
@spec interact(Plug.Conn.t(), map()) :: Plug.Conn.t() | {:error, :not_found}
def interact(conn, %{"uri" => uri}) do
case ActivityPub.fetch_object_from_url(uri) do
{:ok, %Event{uuid: uuid}} -> redirect(conn, to: "/events/#{uuid}")
{:ok, %Comment{uuid: uuid}} -> redirect(conn, to: "/comments/#{uuid}")
_ -> {:error, :not_found}
end
end
@spec handle_collection_route(Plug.Conn.t(), collections()) :: Plug.Conn.t()
defp handle_collection_route(conn, collection) do
case get_format(conn) do
"html" ->
render(conn, :index)
"activity-json" ->
ActivityPubController.call(conn, collection)
end
end
@spec render_or_error(Plug.Conn.t(), function(), cache_status(), object_type(), any()) ::
Plug.Conn.t() | {:error, :not_found}
defp render_or_error(conn, check_fn, status, object_type, object) do
case check_fn.(conn, status, object) do
true ->
case object do
%Tombstone{} ->
conn
|> put_status(:gone)
|> render(object_type, object: object)
_ ->
conn
|> maybe_add_noindex_header(object)
|> render(object_type, object: object)
end
:remote ->
redirect(conn, external: object.url)
false ->
{:error, :not_found}
end
end
@spec is_visible?(map) :: boolean()
defp is_visible?(%{visibility: v}), do: v in [:public, :unlisted]
defp is_visible?(%Tombstone{}), do: true
defp is_visible?(_), do: true
@spec ok_status?(cache_status) :: boolean()
defp ok_status?(status), do: status in [:ok, :commit]
@typep cache_status :: :ok | :commit | :ignore
@spec ok_status_and_is_visible?(Plug.Conn.t(), cache_status, map()) :: boolean()
defp ok_status_and_is_visible?(_conn, status, o),
do: ok_status?(status) and is_visible?(o)
defp checks?(conn, status, o) do
cond do
ok_status_and_is_visible?(conn, status, o) ->
if is_local?(o) == :remote && get_format(conn) == "activity-json", do: :remote, else: true
is_person?(o) && get_format(conn) == "activity-json" ->
true
true ->
false
end
end
@spec is_local?(map()) :: boolean | :remote
defp is_local?(%{local: local}), do: if(local, do: true, else: :remote)
defp is_local?(_), do: false
@spec maybe_add_noindex_header(Plug.Conn.t(), map()) :: Plug.Conn.t()
defp maybe_add_noindex_header(conn, %{visibility: visibility})
when visibility != :public do
put_resp_header(conn, "x-robots-tag", "noindex")
end
defp maybe_add_noindex_header(conn, _), do: conn
@spec is_person?(Actor.t()) :: boolean()
defp is_person?(%Actor{type: :Person}), do: true
defp is_person?(_), do: false
end