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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * ownCloud - galleryplus  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This file is licensed under the Affero General Public License version 3 or  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * later. See the COPYING file.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author Lukas Reschke <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author Olivier Paroz <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright Lukas Reschke 2014-2015  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @copyright Olivier Paroz 2014-2016  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace OCA\GalleryPlus\Middleware;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use OCP\IConfig;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use OCP\IRequest;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use OCP\ILogger;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use OCP\IURLGenerator;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use OCP\AppFramework\Http;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use OCP\AppFramework\Utility\IControllerMethodReflector;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Checks whether the "sharing check" is enabled  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package OCA\GalleryPlus\SharingCheckMiddleware  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class SharingCheckMiddleware extends CheckMiddleware { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/** @var IConfig */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	private $config;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/** @var IControllerMethodReflector */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	protected $reflector;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/***  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Constructor  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param string $appName  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param IRequest $request  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param IConfig $appConfig  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param IControllerMethodReflector $reflector  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param IURLGenerator $urlGenerator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @param ILogger $logger  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function __construct(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$appName,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		IRequest $request,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		IConfig $appConfig,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		IControllerMethodReflector $reflector,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		IURLGenerator $urlGenerator,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		ILogger $logger  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		parent::__construct(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$appName,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$request,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$urlGenerator,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$logger  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$this->config = $appConfig;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$this->reflector = $reflector;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Checks if sharing is enabled before the controllers is executed  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Inspects the controller method annotations and if PublicPage is found  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * it makes sure that sharing is enabled in the configuration settings  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * The check is not performed on "guest" pages which don't require sharing  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * to be enabled  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @inheritDoc  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                	 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	public function beforeController($controller, $methodName) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                		if ($this->reflector->hasAnnotation('Guest')) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                			return;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		$sharingEnabled = $this->isSharingEnabled();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		$isPublicPage = $this->reflector->hasAnnotation('PublicPage'); | 
            
            
                                                                        
                            
            
                                    
            
            
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                		if ($isPublicPage && !$sharingEnabled) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                			throw new CheckException("'Sharing is disabled'", Http::STATUS_SERVICE_UNAVAILABLE); | 
            
            
                                                                        
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Checks whether public sharing (via links) is enabled  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @return bool  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	private function isSharingEnabled() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$shareApiAllowLinks = $this->config->getAppValue('core', 'shareapi_allow_links', 'yes'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if ($shareApiAllowLinks !== 'yes') { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return true;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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