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Client.php	6.82 KB	-rw-r--r--
HttpKernel.php	9.01 KB	-rw-r--r--
HttpKernelInterface.php	1.31 KB	-rw-r--r--
Kernel.php	23.18 KB	-rw-r--r--
KernelEvents.php	3.11 KB	-rw-r--r--
KernelInterface.php	4.93 KB	-rw-r--r--
TerminableInterface.php	1.03 KB	-rw-r--r--
UriSigner.php	1.65 KB	-rw-r--r--
autoloader.php	340 B	-rw-r--r--

Code Editor : HttpKernel.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpKernel;

use Symfony\Component\HttpKernel\Controller\ControllerResolverInterface;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
use Symfony\Component\HttpKernel\Event\FilterControllerEvent;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
use Symfony\Component\HttpKernel\Event\FinishRequestEvent;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent;
use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
use Symfony\Component\HttpKernel\Event\PostResponseEvent;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;

/**
 * HttpKernel notifies events to convert a Request object to a Response one.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 *
 * @api
 */
class HttpKernel implements HttpKernelInterface, TerminableInterface
{
    protected $dispatcher;
    protected $resolver;
    protected $requestStack;

/**
     * Constructor
     *
     * @param EventDispatcherInterface    $dispatcher   An EventDispatcherInterface instance
     * @param ControllerResolverInterface $resolver     A ControllerResolverInterface instance
     * @param RequestStack                $requestStack A stack for master/sub requests
     *
     * @api
     */
    public function __construct(EventDispatcherInterface $dispatcher, ControllerResolverInterface $resolver, RequestStack $requestStack = null)
    {
        $this->dispatcher = $dispatcher;
        $this->resolver = $resolver;
        $this->requestStack = $requestStack ?: new RequestStack();
    }

/**
     * {@inheritdoc}
     *
     * @api
     */
    public function handle(Request $request, $type = HttpKernelInterface::MASTER_REQUEST, $catch = true)
    {
        try {
            return $this->handleRaw($request, $type);
        } catch (\Exception $e) {
            if (false === $catch) {
                $this->finishRequest($request, $type);

throw $e;
            }

return $this->handleException($e, $request, $type);
        }
    }

/**
     * {@inheritdoc}
     *
     * @api
     */
    public function terminate(Request $request, Response $response)
    {
        $this->dispatcher->dispatch(KernelEvents::TERMINATE, new PostResponseEvent($this, $request, $response));
    }

/**
     * Handles a request to convert it to a response.
     *
     * Exceptions are not caught.
     *
     * @param Request $request A Request instance
     * @param integer $type    The type of the request (one of HttpKernelInterface::MASTER_REQUEST or HttpKernelInterface::SUB_REQUEST)
     *
     * @return Response A Response instance
     *
     * @throws \LogicException If one of the listener does not behave as expected
     * @throws NotFoundHttpException When controller cannot be found
     */
    private function handleRaw(Request $request, $type = self::MASTER_REQUEST)
    {
        $this->requestStack->push($request);

// request
        $event = new GetResponseEvent($this, $request, $type);
        $this->dispatcher->dispatch(KernelEvents::REQUEST, $event);

if ($event->hasResponse()) {
            return $this->filterResponse($event->getResponse(), $request, $type);
        }

// load controller
        if (false === $controller = $this->resolver->getController($request)) {
            throw new NotFoundHttpException(sprintf('Unable to find the controller for path "%s". Maybe you forgot to add the matching route in your routing configuration?', $request->getPathInfo()));
        }

$event = new FilterControllerEvent($this, $controller, $request, $type);
        $this->dispatcher->dispatch(KernelEvents::CONTROLLER, $event);
        $controller = $event->getController();

// controller arguments
        $arguments = $this->resolver->getArguments($request, $controller);

// call controller
        $response = call_user_func_array($controller, $arguments);

// view
        if (!$response instanceof Response) {
            $event = new GetResponseForControllerResultEvent($this, $request, $type, $response);
            $this->dispatcher->dispatch(KernelEvents::VIEW, $event);

if ($event->hasResponse()) {
                $response = $event->getResponse();
            }

if (!$response instanceof Response) {
                $msg = sprintf('The controller must return a response (%s given).', $this->varToString($response));

// the user may have forgotten to return something
                if (null === $response) {
                    $msg .= ' Did you forget to add a return statement somewhere in your controller?';
                }
                throw new \LogicException($msg);
            }
        }

return $this->filterResponse($response, $request, $type);
    }

/**
     * Filters a response object.
     *
     * @param Response $response A Response instance
     * @param Request  $request  An error message in case the response is not a Response object
     * @param integer  $type     The type of the request (one of HttpKernelInterface::MASTER_REQUEST or HttpKernelInterface::SUB_REQUEST)
     *
     * @return Response The filtered Response instance
     *
     * @throws \RuntimeException if the passed object is not a Response instance
     */
    private function filterResponse(Response $response, Request $request, $type)
    {
        $event = new FilterResponseEvent($this, $request, $type, $response);

$this->dispatcher->dispatch(KernelEvents::RESPONSE, $event);

$this->finishRequest($request, $type);

return $event->getResponse();
    }

/**
     * Publishes the finish request event, then pop the request from the stack.
     *
     * Note that the order of the operations is important here, otherwise
     * operations such as {@link RequestStack::getParentRequest()} can lead to
     * weird results.
     *
     * @param Request $request
     * @param int     $type
     */
    private function finishRequest(Request $request, $type)
    {
        $this->dispatcher->dispatch(KernelEvents::FINISH_REQUEST, new FinishRequestEvent($this, $request, $type));
        $this->requestStack->pop();
    }

/**
     * Handles an exception by trying to convert it to a Response.
     *
     * @param \Exception $e       An \Exception instance
     * @param Request    $request A Request instance
     * @param integer    $type    The type of the request
     *
     * @return Response A Response instance
     *
     * @throws \Exception
     */
    private function handleException(\Exception $e, $request, $type)
    {
        $event = new GetResponseForExceptionEvent($this, $request, $type, $e);
        $this->dispatcher->dispatch(KernelEvents::EXCEPTION, $event);

// a listener might have replaced the exception
        $e = $event->getException();

if (!$event->hasResponse()) {
            $this->finishRequest($request, $type);

throw $e;
        }

$response = $event->getResponse();

// the developer asked for a specific status code
        if ($response->headers->has('X-Status-Code')) {
            $response->setStatusCode($response->headers->get('X-Status-Code'));

$response->headers->remove('X-Status-Code');
        } elseif (!$response->isClientError() && !$response->isServerError() && !$response->isRedirect()) {
            // ensure that we actually have an error response
            if ($e instanceof HttpExceptionInterface) {
                // keep the HTTP status code and headers
                $response->setStatusCode($e->getStatusCode());
                $response->headers->add($e->getHeaders());
            } else {
                $response->setStatusCode(500);
            }
        }

try {
            return $this->filterResponse($response, $request, $type);
        } catch (\Exception $e) {
            return $response;
        }
    }

private function varToString($var)
    {
        if (is_object($var)) {
            return sprintf('Object(%s)', get_class($var));
        }

if (is_array($var)) {
            $a = array();
            foreach ($var as $k => $v) {
                $a[] = sprintf('%s => %s', $k, $this->varToString($v));
            }

return sprintf("Array(%s)", implode(', ', $a));
        }

if (is_resource($var)) {
            return sprintf('Resource(%s)', get_resource_type($var));
        }

if (null === $var) {
            return 'null';
        }

if (false === $var) {
            return 'false';
        }

if (true === $var) {
            return 'true';
        }

return (string) $var;
    }
}

${this.title}

Code Editor : HttpKernel.php