Update MediaController, add fallback for local files that are later stored on S3 but still are referenced in cached objects remotely

app/Http/Controllers/MediaController.php

@@ -3,18 +3,10 @@
 namespace App\Http\Controllers;
 
 use Illuminate\Http\Request;
-use Auth, Storage, URL;
 use App\Media;
-use Image as Intervention;
-use App\Jobs\ImageOptimizePipeline\ImageOptimize;
 
 class MediaController extends Controller
 {
-	public function __construct()
-	{
-		$this->middleware('auth');
-	}
-
 	public function index(Request $request)
 	{
 		//return view('settings.drive.index');
@@ -24,4 +16,16 @@ class MediaController extends Controller
 	{
         abort(400, 'Endpoint deprecated');
 	}	
+
+	public function fallbackRedirect(Request $request, $pid, $mhash, $uhash, $f)
+	{
+		abort_if(!config_cache('pixelfed.cloud_storage'), 404);
+		$path = 'public/m/_v2/' . $pid . '/' . $mhash . '/' . $uhash . '/' . $f;
+		$media = Media::whereProfileId($pid)
+			->whereMediaPath($path)
+			->whereNotNull('cdn_url')
+			->firstOrFail();
+
+		return redirect()->away($media->cdn_url);
+	}
 }

routes/web.php

@@ -616,6 +616,7 @@ Route::domain(config('pixelfed.domain.app'))->middleware(['validemail', 'twofact
 	Route::get('auth/invite/a/{code}', 'AdminInviteController@index');
 	Route::post('api/v1.1/auth/invite/admin/re', 'AdminInviteController@apiRegister')->middleware('throttle:5,1440');
 
+	Route::get('storage/m/_v2/{pid}/{mhash}/{uhash}/{f}', 'MediaController@fallbackRedirect');
 	Route::get('stories/{username}', 'ProfileController@stories');
 	Route::get('p/{id}', 'StatusController@shortcodeRedirect');
 	Route::get('c/{collection}', 'CollectionController@show');