- defp handle_preview(content_type, conn, _url) do
- send_resp(conn, :unprocessable_entity, "Unsupported content type: #{content_type}.")
+ defp handle_preview(_unsupported_content_type, conn, media_proxy_url) do
+ fallback_on_preview_error(conn, media_proxy_url)
+ end
+
+ defp handle_png_preview(conn, media_proxy_url) do
+ quality = Config.get!([:media_preview_proxy, :image_quality])
+ {thumbnail_max_width, thumbnail_max_height} = thumbnail_max_dimensions()
+
+ with {:ok, thumbnail_binary} <-
+ MediaHelper.image_resize(
+ media_proxy_url,
+ %{
+ max_width: thumbnail_max_width,
+ max_height: thumbnail_max_height,
+ quality: quality,
+ format: "png"
+ }
+ ) do
+ conn
+ |> put_preview_response_headers(["image/png", "preview.png"])
+ |> send_resp(200, thumbnail_binary)
+ else
+ _ ->
+ fallback_on_preview_error(conn, media_proxy_url)
+ end