Add RichMediaController and tests

lib/pleroma/web/rich_media/controllers/rich_media_controller.ex

@@ -0,0 +1,17 @@
+defmodule Pleroma.Web.RichMedia.RichMediaController do
+  use Pleroma.Web, :controller
+
+  import Pleroma.Web.ControllerHelper, only: [json_response: 3]
+
+  def parse(conn, %{"url" => url}) do
+    case Pleroma.Web.RichMedia.Parser.parse(url) do
+      {:ok, data} ->
+        conn
+        |> json_response(200, data)
+
+      {:error, msg} ->
+        conn
+        |> json_response(404, msg)
+    end
+  end
+end

lib/pleroma/web/rich_media/data.ex

@@ -1,3 +0,0 @@
-defmodule Pleroma.Web.RichMedia.Data do
-  defstruct [:title, :type, :image, :url, :description]
-end

lib/pleroma/web/rich_media/parser.ex

@@ -4,11 +4,23 @@ defmodule Pleroma.Web.RichMedia.Parser do
   def parse(url) do
     {:ok, %Tesla.Env{body: html}} = Pleroma.HTTP.get(url)
 
-    Enum.reduce_while(@parsers, %Pleroma.Web.RichMedia.Data{}, fn parser, acc ->
+    html |> maybe_parse() |> get_parsed_data()
+  end
+
+  defp maybe_parse(html) do
+    Enum.reduce_while(@parsers, %{}, fn parser, acc ->
       case parser.parse(html, acc) do
         {:ok, data} -> {:halt, data}
         {:error, _msg} -> {:cont, acc}
       end
     end)
   end
+
+  defp get_parsed_data(data) when data == %{} do
+    {:error, "No metadata found"}
+  end
+
+  defp get_parsed_data(data) do
+    {:ok, data}
+  end
 end

lib/pleroma/web/router.ex

@@ -232,6 +232,12 @@ defmodule Pleroma.Web.Router do
     put("/settings", MastodonAPIController, :put_settings)
   end
 
+  scope "/api", Pleroma.Web.RichMedia do
+    pipe_through(:authenticated_api)
+
+    get("/rich_media/parse", RichMediaController, :parse)
+  end
+
   scope "/api/v1", Pleroma.Web.MastodonAPI do
     pipe_through(:api)
     get("/instance", MastodonAPIController, :masto_instance)