| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  * @package   WPEmerge | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * @author    Atanas Angelov <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * @copyright 2018 Atanas Angelov | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * @license   https://www.gnu.org/licenses/gpl-2.0.html GPL-2.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * @link      https://wpemerge.com/ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | namespace WPEmerge\Middleware; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | use Closure; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | use Psr\Http\Message\ResponseInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | use WPEmerge\Requests\RequestInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  * Executes middleware. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  | trait ExecutesMiddlewareTrait { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  | 	 * Make a middleware class instance. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  | 	 * @param  string $class | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  | 	 * @return object | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  | 	protected abstract function makeMiddleware( $class ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  | 	 * Execute an array of middleware recursively (last in, first out). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  | 	 * @param  array<array<string>> $middleware | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  | 	 * @param  RequestInterface     $request | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  | 	 * @param  Closure              $next | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  | 	 * @return ResponseInterface | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 35 |  |  | 	 */ | 
            
                                                                        
                            
            
                                    
            
            
                | 36 | 3 |  | 	protected function executeMiddleware( $middleware, RequestInterface $request, Closure $next ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 37 | 3 |  | 		$top_middleware = array_shift( $middleware ); | 
            
                                                                        
                            
            
                                    
            
            
                | 38 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 39 | 3 |  | 		if ( $top_middleware === null ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 40 | 3 |  | 			return $next( $request ); | 
            
                                                                        
                            
            
                                    
            
            
                | 41 |  |  | 		} | 
            
                                                                        
                            
            
                                    
            
            
                | 42 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 43 | 2 |  | 		$top_middleware_next = function ( $request ) use ( $middleware, $next ) { | 
            
                                                                        
                            
            
                                    
            
            
                | 44 | 2 |  | 			return $this->executeMiddleware( $middleware, $request, $next ); | 
            
                                                                        
                            
            
                                    
            
            
                | 45 | 2 |  | 		}; | 
            
                                                                        
                            
            
                                    
            
            
                | 46 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 47 |  |  | 		$instance = $this->makeMiddleware( $top_middleware[0] ); | 
            
                                                                        
                            
            
                                    
            
            
                | 48 |  |  | 		$arguments = array_merge( | 
            
                                                                        
                            
            
                                    
            
            
                | 49 |  |  | 			[$request, $top_middleware_next], | 
            
                                                                        
                            
            
                                    
            
            
                | 50 |  |  | 			array_slice( $top_middleware, 1 ) | 
            
                                                                        
                            
            
                                    
            
            
                | 51 |  |  | 		); | 
            
                                                                        
                            
            
                                    
            
            
                | 52 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 53 |  |  | 		return call_user_func_array( [$instance, 'handle'], $arguments ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  | 	} | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 55 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 56 |  |  |  |