implemented

changelog.d/siteinfo-baseurls.add

@@ -0,0 +1,3 @@
+### Added
+
+- Add `base_urls` to the /api/v1/instance pleroma metadata which provides information about the base URLs for media_proxy and uploads when configured

lib/pleroma/web/mastodon_api/views/instance_view.ex

@@ -261,6 +261,21 @@ defmodule Pleroma.Web.MastodonAPI.InstanceView do
   end
 
   defp pleroma_configuration(instance) do
+    base_urls = %{}
+
+    base_urls =
+      if Config.get([:media_proxy, :enabled]) do
+        Map.put(base_urls, :media_proxy, Config.get([:media_proxy, :base_url]))
+      else
+        base_urls
+      end
+
+    base_urls =
+      case Config.get([Pleroma.Upload, :base_url]) do
+        nil -> base_urls
+        url -> Map.put(base_urls, :upload, url)
+      end
+
     %{
       metadata: %{
         account_activation_required: Keyword.get(instance, :account_activation_required),
@@ -270,7 +285,8 @@ defmodule Pleroma.Web.MastodonAPI.InstanceView do
         post_formats: Config.get([:instance, :allowed_post_formats]),
         birthday_required: Config.get([:instance, :birthday_required]),
         birthday_min_age: Config.get([:instance, :birthday_min_age]),
-        translation: supported_languages()
+        translation: supported_languages(),
+        base_urls: base_urls
       },
       stats: %{mau: Pleroma.User.active_user_count()},
       vapid_public_key: Keyword.get(Pleroma.Web.Push.vapid_config(), :public_key)

test/pleroma/web/mastodon_api/controllers/instance_controller_test.exs

@@ -161,4 +161,37 @@ defmodule Pleroma.Web.MastodonAPI.InstanceControllerTest do
              |> get("/api/v1/instance/translation_languages")
              |> json_response_and_validate_schema(200)
   end
+
+  test "base_urls in pleroma metadata", %{conn: conn} do
+    media_proxy_base_url = "https://media.example.org"
+    upload_base_url = "https://uploads.example.org"
+
+    clear_config([:media_proxy, :enabled], true)
+    clear_config([:media_proxy, :base_url], media_proxy_base_url)
+    clear_config([Pleroma.Upload, :base_url], upload_base_url)
+
+    conn = get(conn, "/api/v1/instance")
+
+    assert result = json_response_and_validate_schema(conn, 200)
+    assert result["pleroma"]["metadata"]["base_urls"]["media_proxy"] == media_proxy_base_url
+    assert result["pleroma"]["metadata"]["base_urls"]["upload"] == upload_base_url
+
+    # Test when media_proxy is disabled
+    clear_config([:media_proxy, :enabled], false)
+
+    conn = get(conn, "/api/v1/instance")
+
+    assert result = json_response_and_validate_schema(conn, 200)
+    refute Map.has_key?(result["pleroma"]["metadata"]["base_urls"], "media_proxy")
+    assert result["pleroma"]["metadata"]["base_urls"]["upload"] == upload_base_url
+
+    # Test when upload base_url is not set
+    clear_config([Pleroma.Upload, :base_url], nil)
+
+    conn = get(conn, "/api/v1/instance")
+
+    assert result = json_response_and_validate_schema(conn, 200)
+    refute Map.has_key?(result["pleroma"]["metadata"]["base_urls"], "media_proxy")
+    refute Map.has_key?(result["pleroma"]["metadata"]["base_urls"], "upload")
+  end
 end