432 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			PHP
		
	
	
			
		
		
	
	
			432 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			PHP
		
	
	
<?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 Doctrine\Common\Annotations\Reader;
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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\FileResource;
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use Symfony\Component\Routing\Attribute\Route as RouteAnnotation;
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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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     * @var Reader|null
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     *
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     * @deprecated in Symfony 6.4, this property will be removed in Symfony 7.
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     */
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    protected $reader;
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    /**
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     * @var string|null
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     */
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    protected $env;
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    /**
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     * @var string
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     */
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    protected $routeAnnotationClass = RouteAnnotation::class;
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    /**
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     * @var int
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     */
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    protected $defaultRouteIndex = 0;
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    private bool $hasDeprecatedAnnotations = false;
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    /**
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     * @param string|null $env
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     */
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    public function __construct($env = null)
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    {
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        if ($env instanceof Reader || null === $env && \func_num_args() > 1 && null !== func_get_arg(1)) {
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            trigger_deprecation('symfony/routing', '6.4', 'Passing an instance of "%s" as first and the environment as second argument to "%s" is deprecated. Pass the environment as first argument instead.', Reader::class, __METHOD__);
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            $this->reader = $env;
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            $env = \func_num_args() > 1 ? func_get_arg(1) : null;
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        }
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        if (\is_string($env) || null === $env) {
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            $this->env = $env;
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        } elseif ($env instanceof \Stringable || \is_scalar($env)) {
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            $this->env = (string) $env;
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        } else {
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            throw new \TypeError(__METHOD__.sprintf(': Parameter $env was expected to be a string or null, "%s" given.', get_debug_type($env)));
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        }
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    }
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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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     * @return void
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     */
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    public function setRouteAnnotationClass(string $class)
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    {
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        $this->routeAnnotationClass = $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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        $this->hasDeprecatedAnnotations = false;
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        try {
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            $globals = $this->getGlobals($class);
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            $collection = new RouteCollection();
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            $collection->addResource(new FileResource($class->getFileName()));
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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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            $fqcnAlias = false;
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            foreach ($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 ($this->getAnnotations($method) as $annot) {
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                    $this->addRoute($collection, $annot, $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->getAnnotations($class) as $annot) {
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                    $this->addRoute($collection, $annot, $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, $invokeRouteName);
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                }
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            }
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            if ($this->hasDeprecatedAnnotations) {
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                trigger_deprecation('symfony/routing', '6.4', 'Class "%s" uses Doctrine Annotations to configure routes, which is deprecated. Use PHP attributes instead.', $class->getName());
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            }
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        } finally {
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            $this->hasDeprecatedAnnotations = false;
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        }
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        return $collection;
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    }
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    /**
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     * @param RouteAnnotation $annot or an object that exposes a similar interface
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     *
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     * @return void
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     */
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    protected function addRoute(RouteCollection $collection, object $annot, array $globals, \ReflectionClass $class, \ReflectionMethod $method)
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    {
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        if ($annot->getEnv() && $annot->getEnv() !== $this->env) {
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            return;
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        }
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        $name = $annot->getName() ?? $this->getDefaultRouteName($class, $method);
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        $name = $globals['name'].$name;
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        $requirements = $annot->getRequirements();
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        foreach ($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'], $annot->getDefaults());
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        $requirements = array_replace($globals['requirements'], $requirements);
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        $options = array_replace($globals['options'], $annot->getOptions());
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        $schemes = array_unique(array_merge($globals['schemes'], $annot->getSchemes()));
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        $methods = array_unique(array_merge($globals['methods'], $annot->getMethods()));
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        $host = $annot->getHost() ?? $globals['host'];
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        $condition = $annot->getCondition() ?? $globals['condition'];
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        $priority = $annot->getPriority() ?? $globals['priority'];
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        $path = $annot->getLocalizedPaths() ?: $annot->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, $annot);
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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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        }
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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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        if ('annotation' === $type) {
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            trigger_deprecation('symfony/routing', '6.4', 'The "annotation" route type is deprecated, use the "attribute" route type instead.');
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        }
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        return \is_string($resource) && preg_match('/^(?:\\\\?[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)+$/', $resource) && (!$type || \in_array($type, ['annotation', 'attribute'], true));
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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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    }
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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)
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    {
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        $globals = $this->resetGlobals();
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        $annot = null;
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        if ($attribute = $class->getAttributes($this->routeAnnotationClass, \ReflectionAttribute::IS_INSTANCEOF)[0] ?? null) {
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            $annot = $attribute->newInstance();
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        }
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        if (!$annot && $annot = $this->reader?->getClassAnnotation($class, $this->routeAnnotationClass)) {
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            $this->hasDeprecatedAnnotations = true;
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        }
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        if ($annot) {
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            if (null !== $annot->getName()) {
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                $globals['name'] = $annot->getName();
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            }
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            if (null !== $annot->getPath()) {
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                $globals['path'] = $annot->getPath();
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            }
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            $globals['localized_paths'] = $annot->getLocalizedPaths();
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            if (null !== $annot->getRequirements()) {
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                $globals['requirements'] = $annot->getRequirements();
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            }
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            if (null !== $annot->getOptions()) {
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                $globals['options'] = $annot->getOptions();
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            }
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            if (null !== $annot->getDefaults()) {
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                $globals['defaults'] = $annot->getDefaults();
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            }
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            if (null !== $annot->getSchemes()) {
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                $globals['schemes'] = $annot->getSchemes();
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            }
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            if (null !== $annot->getMethods()) {
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                $globals['methods'] = $annot->getMethods();
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            }
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            if (null !== $annot->getHost()) {
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                $globals['host'] = $annot->getHost();
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            }
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            if (null !== $annot->getCondition()) {
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                $globals['condition'] = $annot->getCondition();
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            }
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            $globals['priority'] = $annot->getPriority() ?? 0;
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            $globals['env'] = $annot->getEnv();
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            foreach ($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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            'priority' => 0,
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            'env' => null,
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        ];
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    }
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    /**
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     * @return Route
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     */
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    protected function createRoute(string $path, array $defaults, array $requirements, array $options, ?string $host, array $schemes, array $methods, ?string $condition)
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    {
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        return new Route($path, $defaults, $requirements, $options, $host, $schemes, $methods, $condition);
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    }
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						|
    /**
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     * @return void
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     */
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    abstract protected function configureRoute(Route $route, \ReflectionClass $class, \ReflectionMethod $method, object $annot);
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    /**
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     * @return iterable<int, RouteAnnotation>
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     */
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    private function getAnnotations(\ReflectionClass|\ReflectionMethod $reflection): iterable
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    {
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        foreach ($reflection->getAttributes($this->routeAnnotationClass, \ReflectionAttribute::IS_INSTANCEOF) as $attribute) {
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            yield $attribute->newInstance();
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        }
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        if (!$this->reader) {
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            return;
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        }
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        $annotations = $reflection instanceof \ReflectionClass
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            ? $this->reader->getClassAnnotations($reflection)
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            : $this->reader->getMethodAnnotations($reflection);
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						|
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						|
        foreach ($annotations as $annotation) {
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						|
            if ($annotation instanceof $this->routeAnnotationClass) {
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                $this->hasDeprecatedAnnotations = true;
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                yield $annotation;
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            }
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        }
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    }
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}
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if (!class_exists(AnnotationClassLoader::class, false)) {
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    class_alias(AttributeClassLoader::class, AnnotationClassLoader::class);
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}
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