Implement public actor ICS endpoint and event ICS export

Closes #83 and #84

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/mobilizon_web/controllers/feed_controller.ex

@@ -17,4 +17,32 @@ defmodule MobilizonWeb.FeedController do
         |> send_file(404, "priv/static/index.html")
     end
   end
+
+  def actor(conn, %{"name" => name, "format" => "ics"}) do
+    with {status, data} when status in [:ok, :commit] <-
+           Cachex.fetch(:ics, "actor_" <> name) do
+      conn
+      |> put_resp_content_type("text/calendar")
+      |> send_resp(200, data)
+    else
+      _err ->
+        conn
+        |> put_resp_content_type("text/html")
+        |> send_file(404, "priv/static/index.html")
+    end
+  end
+
+  def event(conn, %{"uuid" => uuid, "format" => "ics"}) do
+    with {status, data} when status in [:ok, :commit] <-
+           Cachex.fetch(:ics, "event_" <> uuid) do
+      conn
+      |> put_resp_content_type("text/calendar")
+      |> send_resp(200, data)
+    else
+      _err ->
+        conn
+        |> put_resp_content_type("text/html")
+        |> send_file(404, "priv/static/index.html")
+    end
+  end
 end

lib/mobilizon_web/router.ex

@@ -26,8 +26,8 @@ defmodule MobilizonWeb.Router do
     plug(:accepts, ["html", "activity-json"])
   end
 
-  pipeline :rss do
-    plug(:accepts, ["atom", "html"])
+  pipeline :atom_and_ical do
+    plug(:accepts, ["atom", "ics", "html"])
   end
 
   pipeline :browser do
@@ -60,9 +60,10 @@ defmodule MobilizonWeb.Router do
   end
 
   scope "/", MobilizonWeb do
-    pipe_through(:rss)
+    pipe_through(:atom_and_ical)
 
     get("/@:name/feed/:format", FeedController, :actor)
+    get("/events/:uuid/export/:format", FeedController, :event)
   end
 
   scope "/", MobilizonWeb do