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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 Olivier Paroz <[email protected]> |
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* @author Bernhard Posselt <[email protected]> |
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* |
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* @copyright Olivier Paroz 2014-2015 |
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* @copyright Bernhard Posselt 2012-2015 |
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*/ |
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namespace OCA\GalleryPlus\Middleware; |
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use OCP\IURLGenerator; |
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use OCP\IRequest; |
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use OCP\ILogger; |
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use OCP\AppFramework\Http\JSONResponse; |
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use OCP\AppFramework\Http\RedirectResponse; |
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use OCP\AppFramework\Http\TemplateResponse; |
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use OCP\AppFramework\Middleware; |
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/** |
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* Checks that we have a valid token linked to a valid resource and that the |
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* user is authorised to access it |
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* |
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* @package OCA\GalleryPlus\Middleware |
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*/ |
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abstract class CheckMiddleware extends Middleware { |
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/** @var string */ |
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protected $appName; |
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/** @var IRequest */ |
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protected $request; |
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/** @var IURLGenerator */ |
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private $urlGenerator; |
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/** @var ILogger */ |
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protected $logger; |
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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 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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IURLGenerator $urlGenerator, |
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ILogger $logger |
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) { |
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$this->appName = $appName; |
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$this->request = $request; |
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$this->urlGenerator = $urlGenerator; |
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$this->logger = $logger; |
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} |
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/** |
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* If a CheckException is being caught, clients who sent an ajax requests |
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* get a JSON error response while the others are redirected to an error |
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* page |
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* |
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* @inheritDoc |
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*/ |
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public function afterException($controller, $methodName, \Exception $exception) { |
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if ($exception instanceof CheckException) { |
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$message = $exception->getMessage(); |
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$code = $exception->getCode(); |
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$this->logger->debug("[TokenCheckException] {exception}", ['exception' => $message]); |
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return $this->computeResponse($message, $code); |
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} |
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throw $exception; |
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} |
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/** |
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* Decides which type of response to send |
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* |
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* @param string $message |
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* @param int $code |
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* |
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* @return JSONResponse|RedirectResponse|TemplateResponse |
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*/ |
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private function computeResponse($message, $code) { |
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$acceptHtml = stripos($this->request->getHeader('Accept'), 'html'); |
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if ($acceptHtml === false) { |
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$response = $this->sendJsonResponse($message, $code); |
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} else { |
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$response = $this->sendHtmlResponse($message, $code); |
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} |
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return $response; |
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} |
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/** |
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* Redirects the client to an error page or shows an authentication form |
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* |
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* @param string $message |
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* @param int $code |
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* |
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* @return RedirectResponse|TemplateResponse |
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*/ |
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private function sendHtmlResponse($message, $code) { |
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$this->logger->debug("[CheckException] HTML response"); |
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/** |
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* We need to render a template for 401 or we'll have an endless loop as |
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* this is called before the controller gets a chance to render anything |
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*/ |
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if ($code === 401) { |
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$response = $this->sendHtml401(); |
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} else { |
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$response = $this->redirectToErrorPage($message, $code); |
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} |
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return $response; |
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} |
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/** |
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* Shows an authentication form |
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* |
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* @return TemplateResponse |
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*/ |
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private function sendHtml401() { |
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$params = $this->request->getParams(); |
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$this->logger->debug( |
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'[CheckException] Unauthorised Request params: {params}', |
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['params' => $params] |
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); |
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return new TemplateResponse($this->appName, 'authenticate', $params, 'guest'); |
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} |
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/** |
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* Redirects the client to an error page |
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* |
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* @param string $message |
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* @param int $code |
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* |
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* @return RedirectResponse |
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*/ |
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private function redirectToErrorPage($message, $code) { |
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$url = $this->urlGenerator->linkToRoute( |
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$this->appName . '.page.error_page', ['code' => $code] |
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); |
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$response = new RedirectResponse($url); |
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$response->addCookie('galleryErrorMessage', $message); |
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return $response; |
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} |
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/** |
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* Returns a JSON response to the client |
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* |
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* @param string $message |
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* @param int $code |
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* |
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* @return JSONResponse |
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*/ |
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1 |
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private function sendJsonResponse($message, $code) { |
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$this->logger->debug("[TokenCheckException] JSON response"); |
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$jsonData = [ |
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'message' => $message, |
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'success' => false |
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]; |
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return new JSONResponse($jsonData, $code); |
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} |
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} |
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interfasys /
galleryplus
