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- <?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\Bundle\FrameworkBundle\Routing;
- use Symfony\Component\DependencyInjection\ContainerInterface;
- use Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException;
- use Symfony\Component\DependencyInjection\Exception\RuntimeException;
- use Symfony\Component\HttpKernel\CacheWarmer\WarmableInterface;
- use Symfony\Component\Routing\RequestContext;
- use Symfony\Component\Routing\RouteCollection;
- use Symfony\Component\Routing\Router as BaseRouter;
- /**
- * 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;
- /**
- * @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.
- */
- 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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