Added OPML Endpoint for podcast rss feeds (#512)

* Added OPML Endpoint for podcast rss feeds

* changed opml route and added controller test for opml endpoint

* add copy opml feed button

* add copy opml feed button - correct url

* fix html indenting

* add indentation to opml

Co-authored-by: Kieran <kieran.eglin@gmail.com>

* use convention for unused controller params

Co-authored-by: Kieran <kieran.eglin@gmail.com>

* add test for opml_sources helper function

* change opml endpoint to be more inline with the other routes

---------

Co-authored-by: robs <git@robs.social>
Co-authored-by: Kieran <kieran.eglin@gmail.com>

lib/pinchflat_web/router.ex

@@ -23,6 +23,20 @@ defmodule PinchflatWeb.Router do
     plug :maybe_basic_auth
   end
 
+  # Routes in here _may not be_ protected by basic auth. This is necessary for
+  # media streaming to work for RSS podcast feeds.
+  scope "/", PinchflatWeb do
+    pipe_through :feeds
+    # has to match before /sources/:id
+    get "/sources/opml", Podcasts.PodcastController, :opml_feed
+
+    get "/sources/:uuid/feed", Podcasts.PodcastController, :rss_feed
+    get "/sources/:uuid/feed_image", Podcasts.PodcastController, :feed_image
+    get "/media/:uuid/episode_image", Podcasts.PodcastController, :episode_image
+
+    get "/media/:uuid/stream", MediaItems.MediaItemController, :stream
+  end
+
   scope "/", PinchflatWeb do
     pipe_through :browser
 
@@ -48,18 +62,6 @@ defmodule PinchflatWeb.Router do
     end
   end
 
-  # Routes in here _may not be_ protected by basic auth. This is necessary for
-  # media streaming to work for RSS podcast feeds.
-  scope "/", PinchflatWeb do
-    pipe_through :feeds
-
-    get "/sources/:uuid/feed", Podcasts.PodcastController, :rss_feed
-    get "/sources/:uuid/feed_image", Podcasts.PodcastController, :feed_image
-    get "/media/:uuid/episode_image", Podcasts.PodcastController, :episode_image
-
-    get "/media/:uuid/stream", MediaItems.MediaItemController, :stream
-  end
-
   # No auth or CSRF protection for the health check endpoint
   scope "/", PinchflatWeb do
     pipe_through :api