394 lines
15 KiB
PHP
394 lines
15 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Routing\Loader;
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use Symfony\Component\Config\Loader\LoaderInterface;
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use Symfony\Component\Config\Loader\LoaderResolverInterface;
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use Symfony\Component\Config\Resource\ReflectionClassResource;
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use Symfony\Component\Routing\Attribute\DeprecatedAlias;
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use Symfony\Component\Routing\Attribute\Route as RouteAttribute;
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use Symfony\Component\Routing\Exception\InvalidArgumentException;
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use Symfony\Component\Routing\Exception\LogicException;
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use Symfony\Component\Routing\Route;
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use Symfony\Component\Routing\RouteCollection;
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/**
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* AttributeClassLoader loads routing information from a PHP class and its methods.
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*
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* You need to define an implementation for the configureRoute() method. Most of the
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* time, this method should define some PHP callable to be called for the route
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* (a controller in MVC speak).
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*
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* The #[Route] attribute can be set on the class (for global parameters),
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* and on each method.
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*
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* The #[Route] attribute main value is the route path. The attribute also
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* recognizes several parameters: requirements, options, defaults, schemes,
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* methods, host, and name. The name parameter is mandatory.
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* Here is an example of how you should be able to use it:
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*
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* #[Route('/Blog')]
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* class Blog
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* {
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* #[Route('/', name: 'blog_index')]
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* public function index()
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* {
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* }
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* #[Route('/{id}', name: 'blog_post', requirements: ["id" => '\d+'])]
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* public function show()
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* {
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* }
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* }
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*
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* @author Fabien Potencier <fabien@symfony.com>
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* @author Alexander M. Turek <me@derrabus.de>
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* @author Alexandre Daubois <alex.daubois@gmail.com>
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*/
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abstract class AttributeClassLoader implements LoaderInterface
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{
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/**
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* @deprecated since Symfony 7.2, use "setRouteAttributeClass()" instead.
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*/
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protected string $routeAnnotationClass = RouteAttribute::class;
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private string $routeAttributeClass = RouteAttribute::class;
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protected int $defaultRouteIndex = 0;
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public function __construct(
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protected readonly ?string $env = null,
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) {
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}
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/**
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* @deprecated since Symfony 7.2, use "setRouteAttributeClass(string $class)" instead
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*
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* Sets the annotation class to read route properties from.
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*/
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public function setRouteAnnotationClass(string $class): void
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{
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trigger_deprecation('symfony/routing', '7.2', 'The "%s()" method is deprecated, use "%s::setRouteAttributeClass()" instead.', __METHOD__, self::class);
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$this->setRouteAttributeClass($class);
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}
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/**
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* Sets the attribute class to read route properties from.
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*/
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public function setRouteAttributeClass(string $class): void
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{
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$this->routeAnnotationClass = $class;
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$this->routeAttributeClass = $class;
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}
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/**
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* @throws \InvalidArgumentException When route can't be parsed
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*/
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public function load(mixed $class, ?string $type = null): RouteCollection
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{
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if (!class_exists($class)) {
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throw new \InvalidArgumentException(\sprintf('Class "%s" does not exist.', $class));
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}
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$class = new \ReflectionClass($class);
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if ($class->isAbstract()) {
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throw new \InvalidArgumentException(\sprintf('Attributes from class "%s" cannot be read as it is abstract.', $class->getName()));
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}
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$globals = $this->getGlobals($class);
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$collection = new RouteCollection();
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$collection->addResource(new ReflectionClassResource($class));
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if ($globals['env'] && $this->env !== $globals['env']) {
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return $collection;
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}
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$fqcnAlias = false;
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if (!$class->hasMethod('__invoke')) {
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foreach ($this->getAttributes($class) as $attr) {
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if ($attr->getAliases()) {
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throw new InvalidArgumentException(\sprintf('Route aliases cannot be used on non-invokable class "%s".', $class->getName()));
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}
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}
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}
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foreach ($class->getMethods() as $method) {
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$this->defaultRouteIndex = 0;
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$routeNamesBefore = array_keys($collection->all());
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foreach ($this->getAttributes($method) as $attr) {
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$this->addRoute($collection, $attr, $globals, $class, $method);
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if ('__invoke' === $method->name) {
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$fqcnAlias = true;
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}
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}
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if (1 === $collection->count() - \count($routeNamesBefore)) {
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$newRouteName = current(array_diff(array_keys($collection->all()), $routeNamesBefore));
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if ($newRouteName !== $aliasName = \sprintf('%s::%s', $class->name, $method->name)) {
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$collection->addAlias($aliasName, $newRouteName);
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}
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}
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}
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if (0 === $collection->count() && $class->hasMethod('__invoke')) {
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$globals = $this->resetGlobals();
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foreach ($this->getAttributes($class) as $attr) {
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$this->addRoute($collection, $attr, $globals, $class, $class->getMethod('__invoke'));
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$fqcnAlias = true;
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}
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}
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if ($fqcnAlias && 1 === $collection->count()) {
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$invokeRouteName = key($collection->all());
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if ($invokeRouteName !== $class->name) {
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$collection->addAlias($class->name, $invokeRouteName);
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}
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if ($invokeRouteName !== $aliasName = \sprintf('%s::__invoke', $class->name)) {
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$collection->addAlias($aliasName, $invokeRouteName);
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}
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}
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return $collection;
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}
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/**
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* @param RouteAttribute $attr or an object that exposes a similar interface
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*/
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protected function addRoute(RouteCollection $collection, object $attr, array $globals, \ReflectionClass $class, \ReflectionMethod $method): void
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{
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if ($attr->getEnv() && $attr->getEnv() !== $this->env) {
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return;
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}
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$name = $attr->getName() ?? $this->getDefaultRouteName($class, $method);
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$name = $globals['name'].$name;
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$requirements = $attr->getRequirements();
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foreach ($requirements as $placeholder => $requirement) {
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if (\is_int($placeholder)) {
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throw new \InvalidArgumentException(\sprintf('A placeholder name must be a string (%d given). Did you forget to specify the placeholder key for the requirement "%s" of route "%s" in "%s::%s()"?', $placeholder, $requirement, $name, $class->getName(), $method->getName()));
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}
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}
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$defaults = array_replace($globals['defaults'], $attr->getDefaults());
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$requirements = array_replace($globals['requirements'], $requirements);
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$options = array_replace($globals['options'], $attr->getOptions());
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$schemes = array_unique(array_merge($globals['schemes'], $attr->getSchemes()));
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$methods = array_unique(array_merge($globals['methods'], $attr->getMethods()));
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$host = $attr->getHost() ?? $globals['host'];
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$condition = $attr->getCondition() ?? $globals['condition'];
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$priority = $attr->getPriority() ?? $globals['priority'];
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$path = $attr->getLocalizedPaths() ?: $attr->getPath();
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$prefix = $globals['localized_paths'] ?: $globals['path'];
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$paths = [];
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if (\is_array($path)) {
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if (!\is_array($prefix)) {
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foreach ($path as $locale => $localePath) {
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$paths[$locale] = $prefix.$localePath;
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}
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} elseif ($missing = array_diff_key($prefix, $path)) {
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throw new \LogicException(\sprintf('Route to "%s" is missing paths for locale(s) "%s".', $class->name.'::'.$method->name, implode('", "', array_keys($missing))));
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} else {
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foreach ($path as $locale => $localePath) {
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if (!isset($prefix[$locale])) {
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throw new \LogicException(\sprintf('Route to "%s" with locale "%s" is missing a corresponding prefix in class "%s".', $method->name, $locale, $class->name));
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}
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$paths[$locale] = $prefix[$locale].$localePath;
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}
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}
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} elseif (\is_array($prefix)) {
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foreach ($prefix as $locale => $localePrefix) {
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$paths[$locale] = $localePrefix.$path;
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}
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} else {
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$paths[] = $prefix.$path;
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}
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foreach ($method->getParameters() as $param) {
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if (isset($defaults[$param->name]) || !$param->isDefaultValueAvailable()) {
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continue;
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}
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foreach ($paths as $locale => $path) {
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if (preg_match(\sprintf('/\{%s(?:<.*?>)?\}/', preg_quote($param->name)), $path)) {
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if (\is_scalar($defaultValue = $param->getDefaultValue()) || null === $defaultValue) {
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$defaults[$param->name] = $defaultValue;
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} elseif ($defaultValue instanceof \BackedEnum) {
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$defaults[$param->name] = $defaultValue->value;
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}
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break;
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}
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}
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}
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foreach ($paths as $locale => $path) {
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$route = $this->createRoute($path, $defaults, $requirements, $options, $host, $schemes, $methods, $condition);
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$this->configureRoute($route, $class, $method, $attr);
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if (0 !== $locale) {
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$route->setDefault('_locale', $locale);
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$route->setRequirement('_locale', preg_quote($locale));
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$route->setDefault('_canonical_route', $name);
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$collection->add($name.'.'.$locale, $route, $priority);
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} else {
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$collection->add($name, $route, $priority);
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}
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foreach ($attr->getAliases() as $aliasAttribute) {
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if ($aliasAttribute instanceof DeprecatedAlias) {
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$alias = $collection->addAlias($aliasAttribute->getAliasName(), $name);
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$alias->setDeprecated(
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$aliasAttribute->getPackage(),
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$aliasAttribute->getVersion(),
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$aliasAttribute->getMessage()
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);
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continue;
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}
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$collection->addAlias($aliasAttribute, $name);
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}
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}
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}
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public function supports(mixed $resource, ?string $type = null): bool
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{
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return \is_string($resource) && preg_match('/^(?:\\\\?[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)+$/', $resource) && (!$type || 'attribute' === $type);
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}
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public function setResolver(LoaderResolverInterface $resolver): void
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{
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}
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public function getResolver(): LoaderResolverInterface
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{
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throw new LogicException(\sprintf('The "%s()" method must not be called.', __METHOD__));
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}
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/**
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* Gets the default route name for a class method.
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*
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* @return string
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*/
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protected function getDefaultRouteName(\ReflectionClass $class, \ReflectionMethod $method)
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{
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$name = str_replace('\\', '_', $class->name).'_'.$method->name;
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$name = \function_exists('mb_strtolower') && preg_match('//u', $name) ? mb_strtolower($name, 'UTF-8') : strtolower($name);
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if ($this->defaultRouteIndex > 0) {
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$name .= '_'.$this->defaultRouteIndex;
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}
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++$this->defaultRouteIndex;
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return $name;
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}
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/**
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* @return array<string, mixed>
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*/
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protected function getGlobals(\ReflectionClass $class): array
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{
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$globals = $this->resetGlobals();
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// to be replaced in Symfony 8.0 by $this->routeAttributeClass
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if ($attribute = $class->getAttributes($this->routeAnnotationClass, \ReflectionAttribute::IS_INSTANCEOF)[0] ?? null) {
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$attr = $attribute->newInstance();
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if (null !== $attr->getName()) {
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$globals['name'] = $attr->getName();
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}
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if (null !== $attr->getPath()) {
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$globals['path'] = $attr->getPath();
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}
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$globals['localized_paths'] = $attr->getLocalizedPaths();
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if (null !== $attr->getRequirements()) {
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$globals['requirements'] = $attr->getRequirements();
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}
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if (null !== $attr->getOptions()) {
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$globals['options'] = $attr->getOptions();
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}
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if (null !== $attr->getDefaults()) {
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$globals['defaults'] = $attr->getDefaults();
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}
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if (null !== $attr->getSchemes()) {
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$globals['schemes'] = $attr->getSchemes();
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}
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if (null !== $attr->getMethods()) {
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$globals['methods'] = $attr->getMethods();
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}
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if (null !== $attr->getHost()) {
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$globals['host'] = $attr->getHost();
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}
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if (null !== $attr->getCondition()) {
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$globals['condition'] = $attr->getCondition();
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}
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$globals['priority'] = $attr->getPriority() ?? 0;
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$globals['env'] = $attr->getEnv();
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foreach ($globals['requirements'] as $placeholder => $requirement) {
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if (\is_int($placeholder)) {
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throw new \InvalidArgumentException(\sprintf('A placeholder name must be a string (%d given). Did you forget to specify the placeholder key for the requirement "%s" in "%s"?', $placeholder, $requirement, $class->getName()));
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}
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}
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}
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return $globals;
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}
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private function resetGlobals(): array
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{
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return [
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'path' => null,
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'localized_paths' => [],
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'requirements' => [],
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'options' => [],
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'defaults' => [],
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'schemes' => [],
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'methods' => [],
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'host' => '',
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'condition' => '',
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'name' => '',
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|
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'priority' => 0,
|
||
|
|
'env' => null,
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
protected function createRoute(string $path, array $defaults, array $requirements, array $options, ?string $host, array $schemes, array $methods, ?string $condition): Route
|
||
|
|
{
|
||
|
|
return new Route($path, $defaults, $requirements, $options, $host, $schemes, $methods, $condition);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @param RouteAttribute $attr or an object that exposes a similar interface
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
abstract protected function configureRoute(Route $route, \ReflectionClass $class, \ReflectionMethod $method, object $attr);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @return iterable<int, RouteAttribute>
|
||
|
|
*/
|
||
|
|
private function getAttributes(\ReflectionClass|\ReflectionMethod $reflection): iterable
|
||
|
|
{
|
||
|
|
// to be replaced in Symfony 8.0 by $this->routeAttributeClass
|
||
|
|
foreach ($reflection->getAttributes($this->routeAnnotationClass, \ReflectionAttribute::IS_INSTANCEOF) as $attribute) {
|
||
|
|
yield $attribute->newInstance();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|