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<?php |
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/** |
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* @package WPEmerge |
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* @author Atanas Angelov <[email protected]> |
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* @copyright 2018 Atanas Angelov |
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* @license https://www.gnu.org/licenses/gpl-2.0.html GPL-2.0 |
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* @link https://wpemerge.com/ |
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*/ |
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namespace WPEmerge\Middleware; |
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use Closure; |
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use WPEmerge\Exceptions\ConfigurationException; |
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use WPEmerge\Helpers\MixedType; |
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/** |
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* Allow objects to have middleware. |
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*/ |
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trait HasMiddlewareTrait { |
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/** |
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* Array of all registered middleware. |
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* |
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* @var array |
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*/ |
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protected $middleware = []; |
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/** |
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* Check if the passed entity is a valid middleware. |
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* |
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* @param mixed $middleware |
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* @return boolean |
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*/ |
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protected function isMiddleware( $middleware ) { |
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return ( |
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$middleware instanceof Closure |
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|| |
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is_a( $middleware, MiddlewareInterface::class, true ) |
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); |
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} |
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/** |
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* Get registered middleware. |
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* |
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* @return array |
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*/ |
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public function getMiddleware() { |
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return $this->middleware; |
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} |
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/** |
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* Set registered middleware. |
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* Accepts: a class name, an instance of a class, a Closure or an array of any of the previous. |
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* |
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* @throws ConfigurationException |
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* @param string|\Closure|\WPEmerge\Middleware\MiddlewareInterface|array $middleware |
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* @return void |
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*/ |
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public function setMiddleware( $middleware ) { |
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$middleware = MixedType::toArray( $middleware ); |
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foreach ( $middleware as $item ) { |
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if ( ! $this->isMiddleware( $item ) ) { |
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throw new ConfigurationException( |
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'Passed middleware must be a closure or the name or instance of a class which ' . |
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'implements the ' . MiddlewareInterface::class . ' interface.' |
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); |
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} |
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} |
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$this->middleware = $middleware; |
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} |
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/** |
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* Add middleware. |
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* Accepts: a class name, an instance of a class, a Closure or an array of any of the previous. |
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* |
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* @param string|\Closure|\WPEmerge\Middleware\MiddlewareInterface|array $middleware |
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* @return void |
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*/ |
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public function addMiddleware( $middleware ) { |
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$middleware = MixedType::toArray( $middleware ); |
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$this->setMiddleware( array_merge( $this->getMiddleware(), $middleware ) ); |
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} |
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/** |
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* Fluent alias for addMiddleware(). |
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* |
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* @codeCoverageIgnore |
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* @param string|\Closure|\WPEmerge\Middleware\MiddlewareInterface|array $middleware |
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* @return static $this |
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*/ |
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public function middleware( $middleware ) { |
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call_user_func_array( [$this, 'addMiddleware'], func_get_args() ); |
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return $this; |
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} |
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} |
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htmlburger /
wpemerge
