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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Bernhard Posselt <dev@bernhard-posselt.com>
* @author Joas Schilling <coding@schilljs.com>
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\AppFramework;
use OC\AppFramework\Http\Dispatcher;
use OC\AppFramework\DependencyInjection\DIContainer;
use OCP\AppFramework\Http;
use OCP\AppFramework\QueryException;
use OCP\AppFramework\Http\ICallbackResponse;
/**
* Entry point for every request in your app. You can consider this as your
* public static void main() method
*
* Handles all the dependency injection, controllers and output flow
*/
class App {
/** @var string[] */
private static $nameSpaceCache = [];
/**
* Turns an app id into a namespace by either reading the appinfo.xml's
* namespace tag or uppercasing the appid's first letter
* @param string $appId the app id
* @param string $topNamespace the namespace which should be prepended to
* the transformed app id, defaults to OCA\
* @return string the starting namespace for the app
*/
public static function buildAppNamespace($appId, $topNamespace='OCA\\') {
// Hit the cache!
if (isset(self::$nameSpaceCache[$appId])) {
return $topNamespace . self::$nameSpaceCache[$appId];
}
$appInfo = \OC_App::getAppInfo($appId);
if (isset($appInfo['namespace'])) {
self::$nameSpaceCache[$appId] = trim($appInfo['namespace']);
} else {
// if the tag is not found, fall back to uppercasing the first letter
self::$nameSpaceCache[$appId] = ucfirst($appId);
}
return $topNamespace . self::$nameSpaceCache[$appId];
}
/**
* Shortcut for calling a controller method and printing the result
* @param string $controllerName the name of the controller under which it is
* stored in the DI container
* @param string $methodName the method that you want to call
* @param DIContainer $container an instance of a pimple container.
* @param array $urlParams list of URL parameters (optional)
*/
public static function main($controllerName, $methodName, DIContainer $container, array $urlParams = null) {
if (!is_null($urlParams)) {
$container['OCP\\IRequest']->setUrlParameters($urlParams);
} else if (isset($container['urlParams']) && !is_null($container['urlParams'])) {
$container['OCP\\IRequest']->setUrlParameters($container['urlParams']);
}
$appName = $container['AppName'];
// first try $controllerName then go for \OCA\AppName\Controller\$controllerName
try {
$controller = $container->query($controllerName);
} catch(QueryException $e) {
if ($appName === 'core') {
$appNameSpace = 'OC\\Core';
} else if ($appName === 'settings') {
$appNameSpace = 'OC\\Settings';
} else {
$appNameSpace = self::buildAppNamespace($appName);
}
$controllerName = $appNameSpace . '\\Controller\\' . $controllerName;
$controller = $container->query($controllerName);
}
// initialize the dispatcher and run all the middleware before the controller
/** @var Dispatcher $dispatcher */
$dispatcher = $container['Dispatcher'];
list(
$httpHeaders,
$responseHeaders,
$responseCookies,
$output,
$response
) = $dispatcher->dispatch($controller, $methodName);
$io = $container['OCP\\AppFramework\\Http\\IOutput'];
if(!is_null($httpHeaders)) {
$io->setHeader($httpHeaders);
}
foreach($responseHeaders as $name => $value) {
$io->setHeader($name . ': ' . $value);
}
foreach($responseCookies as $name => $value) {
$expireDate = null;
if($value['expireDate'] instanceof \DateTime) {
$expireDate = $value['expireDate']->getTimestamp();
}
$io->setCookie(
$name,
$value['value'],
$expireDate,
$container->getServer()->getWebRoot(),
null,
$container->getServer()->getRequest()->getServerProtocol() === 'https',
true
);
}
/*
* Status 204 does not have a body and no Content Length
* Status 304 does not have a body and does not need a Content Length
* https://tools.ietf.org/html/rfc7230#section-3.3
* https://tools.ietf.org/html/rfc7230#section-3.3.2
*/
if ($httpHeaders !== Http::STATUS_NO_CONTENT && $httpHeaders !== Http::STATUS_NOT_MODIFIED) {
if ($response instanceof ICallbackResponse) {
$response->callback($io);
} else if (!is_null($output)) {
$io->setHeader('Content-Length: ' . strlen($output));
$io->setOutput($output);
}
}
}
/**
* Shortcut for calling a controller method and printing the result.
* Similar to App:main except that no headers will be sent.
* This should be used for example when registering sections via
* \OC\AppFramework\Core\API::registerAdmin()
*
* @param string $controllerName the name of the controller under which it is
* stored in the DI container
* @param string $methodName the method that you want to call
* @param array $urlParams an array with variables extracted from the routes
* @param DIContainer $container an instance of a pimple container.
*/
public static function part($controllerName, $methodName, array $urlParams,
DIContainer $container){
$container['urlParams'] = $urlParams;
$controller = $container[$controllerName];
$dispatcher = $container['Dispatcher'];
list(, , $output) = $dispatcher->dispatch($controller, $methodName);
return $output;
}
}