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395
msd2/phpBB3/phpbb/routing/router.php
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395
msd2/phpBB3/phpbb/routing/router.php
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<?php
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/**
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*
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* This file is part of the phpBB Forum Software package.
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*
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* @copyright (c) phpBB Limited <https://www.phpbb.com>
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* @license GNU General Public License, version 2 (GPL-2.0)
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*
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* For full copyright and license information, please see
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* the docs/CREDITS.txt file.
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*
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*/
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namespace phpbb\routing;
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use phpbb\routing\resources_locator\resources_locator_interface;
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use Symfony\Component\Config\ConfigCache;
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use Symfony\Component\Config\Loader\LoaderInterface;
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use Symfony\Component\DependencyInjection\ContainerInterface;
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use Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException;
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use Symfony\Component\DependencyInjection\Exception\RuntimeException;
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use Symfony\Component\Filesystem\Exception\IOException;
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use Symfony\Component\Routing\Generator\Dumper\PhpGeneratorDumper;
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use Symfony\Component\Routing\Generator\UrlGenerator;
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use Symfony\Component\Routing\Matcher\Dumper\PhpMatcherDumper;
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use Symfony\Component\Routing\Matcher\UrlMatcher;
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use Symfony\Component\Routing\RequestContext;
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use Symfony\Component\Routing\RouteCollection;
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use Symfony\Component\Routing\RouterInterface;
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/**
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* Integration of all pieces of the routing system for easier use.
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*/
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class router implements RouterInterface
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{
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/**
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* @var ContainerInterface
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*/
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protected $container;
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/**
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* @var resources_locator_interface
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*/
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protected $resources_locator;
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/**
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* @var LoaderInterface
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*/
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protected $loader;
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/**
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* PHP file extensions
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*
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* @var string
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*/
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protected $php_ext;
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/**
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* @var \Symfony\Component\Routing\Matcher\UrlMatcherInterface|null
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*/
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protected $matcher;
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/**
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* @var \Symfony\Component\Routing\Generator\UrlGeneratorInterface|null
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*/
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protected $generator;
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/**
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* @var RequestContext
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*/
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protected $context;
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/**
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* @var RouteCollection
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*/
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protected $route_collection;
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/**
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* @var string
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*/
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protected $cache_dir;
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/**
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* Construct method
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*
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* @param ContainerInterface $container DI container
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* @param resources_locator_interface $resources_locator Resources locator
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* @param LoaderInterface $loader Resources loader
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* @param string $php_ext PHP file extension
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* @param string $cache_dir phpBB cache directory
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*/
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public function __construct(ContainerInterface $container, resources_locator_interface $resources_locator, LoaderInterface $loader, $php_ext, $cache_dir)
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{
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$this->container = $container;
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$this->resources_locator = $resources_locator;
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$this->loader = $loader;
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$this->php_ext = $php_ext;
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$this->context = new RequestContext();
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$this->cache_dir = $cache_dir;
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}
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/**
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* Get the list of routes
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*
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* @return RouteCollection Get the route collection
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*/
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public function get_routes()
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{
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if ($this->route_collection === null /*|| $this->route_collection->count() === 0*/)
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{
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$this->route_collection = new RouteCollection;
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foreach ($this->resources_locator->locate_resources() as $resource)
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{
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if (is_array($resource))
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{
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$this->route_collection->addCollection($this->loader->load($resource[0], $resource[1]));
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}
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else
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{
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$this->route_collection->addCollection($this->loader->load($resource));
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}
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}
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$this->resolveParameters($this->route_collection);
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}
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return $this->route_collection;
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}
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/**
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* {@inheritdoc}
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*/
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public function getRouteCollection()
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{
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return $this->get_routes();
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}
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/**
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* {@inheritdoc}
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*/
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public function setContext(RequestContext $context)
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{
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$this->context = $context;
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if ($this->matcher !== null)
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{
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$this->get_matcher()->setContext($context);
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}
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if ($this->generator !== null)
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{
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$this->get_generator()->setContext($context);
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function getContext()
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{
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return $this->context;
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}
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/**
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* {@inheritdoc}
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*/
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public function generate($name, $parameters = array(), $referenceType = self::ABSOLUTE_PATH)
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{
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return $this->get_generator()->generate($name, $parameters, $referenceType);
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}
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/**
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* {@inheritdoc}
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*/
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public function match($pathinfo)
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{
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return $this->get_matcher()->match($pathinfo);
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}
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/**
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* Gets the UrlMatcher instance associated with this Router.
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*
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* @return \Symfony\Component\Routing\Matcher\UrlMatcherInterface A UrlMatcherInterface instance
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*/
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public function get_matcher()
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{
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if ($this->matcher !== null)
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{
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return $this->matcher;
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}
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$this->create_dumped_url_matcher();
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return $this->matcher;
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}
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/**
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* Creates a new dumped URL Matcher (dump it if necessary)
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*/
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protected function create_dumped_url_matcher()
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{
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try
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{
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$cache = new ConfigCache("{$this->cache_dir}url_matcher.{$this->php_ext}", defined('DEBUG'));
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if (!$cache->isFresh())
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{
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$dumper = new PhpMatcherDumper($this->get_routes());
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$options = array(
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'class' => 'phpbb_url_matcher',
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'base_class' => 'Symfony\\Component\\Routing\\Matcher\\UrlMatcher',
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);
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$cache->write($dumper->dump($options), $this->get_routes()->getResources());
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}
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require_once($cache->getPath());
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$this->matcher = new \phpbb_url_matcher($this->context);
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}
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catch (IOException $e)
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{
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$this->create_new_url_matcher();
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}
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}
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/**
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* Creates a new URL Matcher
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*/
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protected function create_new_url_matcher()
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{
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$this->matcher = new UrlMatcher($this->get_routes(), $this->context);
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}
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/**
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* Gets the UrlGenerator instance associated with this Router.
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*
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* @return \Symfony\Component\Routing\Generator\UrlGeneratorInterface A UrlGeneratorInterface instance
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*/
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public function get_generator()
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{
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if ($this->generator !== null)
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{
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return $this->generator;
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}
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$this->create_dumped_url_generator();
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return $this->generator;
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}
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/**
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* Creates a new dumped URL Generator (dump it if necessary)
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*/
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protected function create_dumped_url_generator()
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{
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try
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{
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$cache = new ConfigCache("{$this->cache_dir}url_generator.{$this->php_ext}", defined('DEBUG'));
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if (!$cache->isFresh())
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{
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$dumper = new PhpGeneratorDumper($this->get_routes());
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$options = array(
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'class' => 'phpbb_url_generator',
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'base_class' => 'Symfony\\Component\\Routing\\Generator\\UrlGenerator',
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);
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$cache->write($dumper->dump($options), $this->get_routes()->getResources());
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}
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require_once($cache->getPath());
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$this->generator = new \phpbb_url_generator($this->context);
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}
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catch (IOException $e)
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{
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$this->create_new_url_generator();
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}
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}
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/**
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* Creates a new URL Generator
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*/
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protected function create_new_url_generator()
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{
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$this->generator = new UrlGenerator($this->get_routes(), $this->context);
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}
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/**
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* Replaces placeholders with service container parameter values in:
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* - the route defaults,
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* - the route requirements,
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* - the route path,
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* - the route host,
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* - the route schemes,
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* - the route methods.
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*
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* @param RouteCollection $collection
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*/
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protected function resolveParameters(RouteCollection $collection)
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{
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/** @var \Symfony\Component\Routing\Route $route */
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foreach ($collection as $route)
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{
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foreach ($route->getDefaults() as $name => $value)
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{
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$route->setDefault($name, $this->resolve($value));
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}
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$requirements = $route->getRequirements();
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unset($requirements['_scheme']);
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unset($requirements['_method']);
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foreach ($requirements as $name => $value)
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{
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$route->setRequirement($name, $this->resolve($value));
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}
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$route->setPath($this->resolve($route->getPath()));
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$route->setHost($this->resolve($route->getHost()));
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$schemes = array();
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foreach ($route->getSchemes() as $scheme)
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{
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$schemes = array_merge($schemes, explode('|', $this->resolve($scheme)));
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}
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$route->setSchemes($schemes);
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$methods = array();
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foreach ($route->getMethods() as $method)
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{
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$methods = array_merge($methods, explode('|', $this->resolve($method)));
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}
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$route->setMethods($methods);
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$route->setCondition($this->resolve($route->getCondition()));
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}
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}
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/**
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* Recursively replaces placeholders with the service container parameters.
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*
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* @param mixed $value The source which might contain "%placeholders%"
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*
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* @return mixed The source with the placeholders replaced by the container
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* parameters. Arrays are resolved recursively.
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*
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* @throws ParameterNotFoundException When a placeholder does not exist as a container parameter
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* @throws RuntimeException When a container value is not a string or a numeric value
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*/
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private function resolve($value)
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{
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if (is_array($value))
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{
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foreach ($value as $key => $val)
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{
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$value[$key] = $this->resolve($val);
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}
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return $value;
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}
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if (!is_string($value))
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{
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return $value;
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}
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$container = $this->container;
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$escapedValue = preg_replace_callback('/%%|%([^%\s]++)%/', function ($match) use ($container, $value)
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{
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// skip %%
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if (!isset($match[1]))
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{
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return '%%';
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}
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$resolved = $container->getParameter($match[1]);
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if (is_string($resolved) || is_numeric($resolved))
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{
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return (string) $resolved;
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}
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throw new RuntimeException(sprintf(
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'The container parameter "%s", used in the route configuration value "%s", '.
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'must be a string or numeric, but it is of type %s.',
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$match[1],
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$value,
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gettype($resolved)
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)
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);
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}, $value);
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return str_replace('%%', '%', $escapedValue);
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}
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}
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