/usr/share/php/Symfony/Bundle/FrameworkBundle/Routing/Router.php is in php-symfony-framework-bundle 2.7.10-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* 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\Bundle\FrameworkBundle\Routing;
use Symfony\Component\Routing\Router as BaseRouter;
use Symfony\Component\Routing\RequestContext;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\Routing\RouteCollection;
use Symfony\Component\HttpKernel\CacheWarmer\WarmableInterface;
use Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException;
use Symfony\Component\DependencyInjection\Exception\RuntimeException;
/**
* This Router creates the Loader only when the cache is empty.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class Router extends BaseRouter implements WarmableInterface
{
private $container;
/**
* Constructor.
*
* @param ContainerInterface $container A ContainerInterface instance
* @param mixed $resource The main resource to load
* @param array $options An array of options
* @param RequestContext $context The context
*/
public function __construct(ContainerInterface $container, $resource, array $options = array(), RequestContext $context = null)
{
$this->container = $container;
$this->resource = $resource;
$this->context = $context ?: new RequestContext();
$this->setOptions($options);
}
/**
* {@inheritdoc}
*/
public function getRouteCollection()
{
if (null === $this->collection) {
$this->collection = $this->container->get('routing.loader')->load($this->resource, $this->options['resource_type']);
$this->resolveParameters($this->collection);
}
return $this->collection;
}
/**
* {@inheritdoc}
*/
public function warmUp($cacheDir)
{
$currentDir = $this->getOption('cache_dir');
// force cache generation
$this->setOption('cache_dir', $cacheDir);
$this->getMatcher();
$this->getGenerator();
$this->setOption('cache_dir', $currentDir);
}
/**
* Replaces placeholders with service container parameter values in:
* - the route defaults,
* - the route requirements,
* - the route path,
* - the route host,
* - the route schemes,
* - the route methods.
*
* @param RouteCollection $collection
*/
private function resolveParameters(RouteCollection $collection)
{
foreach ($collection as $route) {
foreach ($route->getDefaults() as $name => $value) {
$route->setDefault($name, $this->resolve($value));
}
foreach ($route->getRequirements() as $name => $value) {
if ('_scheme' === $name || '_method' === $name) {
continue; // ignore deprecated requirements to not trigger deprecation warnings
}
$route->setRequirement($name, $this->resolve($value));
}
$route->setPath($this->resolve($route->getPath()));
$route->setHost($this->resolve($route->getHost()));
$schemes = array();
foreach ($route->getSchemes() as $scheme) {
$schemes = array_merge($schemes, explode('|', $this->resolve($scheme)));
}
$route->setSchemes($schemes);
$methods = array();
foreach ($route->getMethods() as $method) {
$methods = array_merge($methods, explode('|', $this->resolve($method)));
}
$route->setMethods($methods);
$route->setCondition($this->resolve($route->getCondition()));
}
}
/**
* Recursively replaces placeholders with the service container parameters.
*
* @param mixed $value The source which might contain "%placeholders%"
*
* @return mixed The source with the placeholders replaced by the container
* parameters. Arrays are resolved recursively.
*
* @throws ParameterNotFoundException When a placeholder does not exist as a container parameter
* @throws RuntimeException When a container value is not a string or a numeric value
*/
private function resolve($value)
{
if (is_array($value)) {
foreach ($value as $key => $val) {
$value[$key] = $this->resolve($val);
}
return $value;
}
if (!is_string($value)) {
return $value;
}
$container = $this->container;
$escapedValue = preg_replace_callback('/%%|%([^%\s]++)%/', function ($match) use ($container, $value) {
// skip %%
if (!isset($match[1])) {
return '%%';
}
$resolved = $container->getParameter($match[1]);
if (is_string($resolved) || is_numeric($resolved)) {
return (string) $resolved;
}
throw new RuntimeException(sprintf(
'The container parameter "%s", used in the route configuration value "%s", '.
'must be a string or numeric, but it is of type %s.',
$match[1],
$value,
gettype($resolved)
)
);
}, $value);
return str_replace('%%', '%', $escapedValue);
}
}
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