154 lines
4.2 KiB
PHP
154 lines
4.2 KiB
PHP
<?php
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/**
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*
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*
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OC\AppFramework\Middleware;
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use OC\AppFramework\Http;
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use OC\AppFramework\OCS\BaseResponse;
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use OC\AppFramework\OCS\V1Response;
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use OC\AppFramework\OCS\V2Response;
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use OCP\API;
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use OCP\AppFramework\Controller;
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use OCP\AppFramework\Http\DataResponse;
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use OCP\AppFramework\Http\JSONResponse;
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use OCP\AppFramework\Http\Response;
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use OCP\AppFramework\OCS\OCSException;
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use OCP\AppFramework\OCSController;
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use OCP\IRequest;
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use OCP\AppFramework\Middleware;
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class OCSMiddleware extends Middleware {
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/** @var IRequest */
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private $request;
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/** @var int */
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private $ocsVersion;
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/**
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* @param IRequest $request
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*/
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public function __construct(IRequest $request) {
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$this->request = $request;
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}
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/**
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* @param Controller $controller
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* @param string $methodName
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*/
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public function beforeController($controller, $methodName) {
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if ($controller instanceof OCSController) {
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if (substr_compare($this->request->getScriptName(), '/ocs/v2.php', -strlen('/ocs/v2.php')) === 0) {
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$this->ocsVersion = 2;
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} else {
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$this->ocsVersion = 1;
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}
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$controller->setOCSVersion($this->ocsVersion);
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}
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}
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/**
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* @param Controller $controller
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* @param string $methodName
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* @param \Exception $exception
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* @throws \Exception
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* @return BaseResponse
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*/
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public function afterException($controller, $methodName, \Exception $exception) {
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if ($controller instanceof OCSController && $exception instanceof OCSException) {
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$code = $exception->getCode();
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if ($code === 0) {
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$code = API::RESPOND_UNKNOWN_ERROR;
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}
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return $this->buildNewResponse($controller, $code, $exception->getMessage());
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}
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throw $exception;
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}
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/**
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* @param Controller $controller
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* @param string $methodName
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* @param Response $response
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* @return \OCP\AppFramework\Http\Response
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*/
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public function afterController($controller, $methodName, Response $response) {
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/*
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* If a different middleware has detected that a request unauthorized or forbidden
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* we need to catch the response and convert it to a proper OCS response.
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*/
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if ($controller instanceof OCSController && !($response instanceof BaseResponse)) {
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if ($response->getStatus() === Http::STATUS_UNAUTHORIZED ||
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$response->getStatus() === Http::STATUS_FORBIDDEN) {
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$message = '';
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if ($response instanceof JSONResponse) {
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/** @var DataResponse $response */
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$message = $response->getData()['message'];
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}
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return $this->buildNewResponse($controller, API::RESPOND_UNAUTHORISED, $message);
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}
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}
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return $response;
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}
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/**
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* @param Controller $controller
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* @param int $code
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* @param string $message
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* @return V1Response|V2Response
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*/
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private function buildNewResponse(Controller $controller, $code, $message) {
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$format = $this->getFormat($controller);
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$data = new DataResponse();
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$data->setStatus($code);
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if ($this->ocsVersion === 1) {
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$response = new V1Response($data, $format, $message);
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} else {
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$response = new V2Response($data, $format, $message);
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}
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return $response;
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}
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/**
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* @param Controller $controller
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* @return string
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*/
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private function getFormat(Controller $controller) {
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// get format from the url format or request format parameter
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$format = $this->request->getParam('format');
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// if none is given try the first Accept header
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if($format === null) {
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$headers = $this->request->getHeader('Accept');
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$format = $controller->getResponderByHTTPHeader($headers, 'xml');
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}
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return $format;
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}
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}
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