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<?php
/**
* Nextcloud - Gallery
*
* This file is licensed under the Affero General Public License version 3 or
* later. See the COPYING file.
*
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Olivier Paroz <galleryapps@oparoz.com>
*
* @copyright Lukas Reschke 2017
* @copyright Olivier Paroz 2017
*/
namespace OCA\Gallery\Middleware;
use OCP\IConfig;
use OCP\IRequest;
use OCP\ILogger;
use OCP\IURLGenerator;
use OCP\AppFramework\Http;
use OCP\AppFramework\Utility\IControllerMethodReflector;
/**
* Checks whether the "sharing check" is enabled
*
* @package OCA\Gallery\SharingCheckMiddleware
*/
class SharingCheckMiddleware extends CheckMiddleware {
/** @var IConfig */
private $config;
/** @var IControllerMethodReflector */
protected $reflector;
/***
* Constructor
*
* @param string $appName
* @param IRequest $request
* @param IConfig $appConfig
* @param IControllerMethodReflector $reflector
* @param IURLGenerator $urlGenerator
* @param ILogger $logger
*/
public function __construct(
$appName,
IRequest $request,
IConfig $appConfig,
IControllerMethodReflector $reflector,
IURLGenerator $urlGenerator,
ILogger $logger
) {
parent::__construct(
$appName,
$request,
$urlGenerator,
$logger
);
$this->config = $appConfig;
$this->reflector = $reflector;
}
/**
* Checks if sharing is enabled before the controllers is executed
*
* Inspects the controller method annotations and if PublicPage is found
* it makes sure that sharing is enabled in the configuration settings
*
* The check is not performed on "guest" pages which don't require sharing
* to be enabled
*
* @inheritDoc
*/
public function beforeController($controller, $methodName) {
if ($this->reflector->hasAnnotation('Guest')) {
return;
}
$sharingEnabled = $this->isSharingEnabled();
$isPublicPage = $this->reflector->hasAnnotation('PublicPage');
if ($isPublicPage && !$sharingEnabled) {
throw new CheckException("'Sharing is disabled'", Http::STATUS_SERVICE_UNAVAILABLE);
}
}
/**
* Checks whether public sharing (via links) is enabled
*
* @return bool
*/
private function isSharingEnabled() {
$shareApiAllowLinks = $this->config->getAppValue('core', 'shareapi_allow_links', 'yes');
if ($shareApiAllowLinks !== 'yes') {
return false;
}
return true;
}
}