315 lines
12 KiB
PHP
315 lines
12 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 Symfony\Component\Config\Loader\FileLoader;
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use Symfony\Component\Config\Resource\FileResource;
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use Symfony\Component\Routing\Loader\Configurator\Traits\HostTrait;
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use Symfony\Component\Routing\Loader\Configurator\Traits\LocalizedRouteTrait;
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use Symfony\Component\Routing\Loader\Configurator\Traits\PrefixTrait;
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use Symfony\Component\Routing\RouteCollection;
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use Symfony\Component\Yaml\Exception\ParseException;
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use Symfony\Component\Yaml\Parser as YamlParser;
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use Symfony\Component\Yaml\Yaml;
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/**
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* YamlFileLoader loads Yaml routing files.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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* @author Tobias Schultze <http://tobion.de>
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*/
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class YamlFileLoader extends FileLoader
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{
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use HostTrait;
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use LocalizedRouteTrait;
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use PrefixTrait;
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private const AVAILABLE_KEYS = [
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'resource', 'type', 'prefix', 'path', 'host', 'schemes', 'methods', 'defaults', 'requirements', 'options', 'condition', 'controller', 'name_prefix', 'trailing_slash_on_root', 'locale', 'format', 'utf8', 'exclude', 'stateless',
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];
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private $yamlParser;
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/**
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* Loads a Yaml file.
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*
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* @param string $file A Yaml file path
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* @param string|null $type The resource type
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*
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* @return RouteCollection
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*
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* @throws \InvalidArgumentException When a route can't be parsed because YAML is invalid
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*/
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public function load($file, string $type = null)
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{
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$path = $this->locator->locate($file);
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if (!stream_is_local($path)) {
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throw new \InvalidArgumentException(sprintf('This is not a local file "%s".', $path));
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}
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if (!file_exists($path)) {
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throw new \InvalidArgumentException(sprintf('File "%s" not found.', $path));
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}
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if (null === $this->yamlParser) {
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$this->yamlParser = new YamlParser();
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}
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try {
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$parsedConfig = $this->yamlParser->parseFile($path, Yaml::PARSE_CONSTANT);
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} catch (ParseException $e) {
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throw new \InvalidArgumentException(sprintf('The file "%s" does not contain valid YAML: ', $path).$e->getMessage(), 0, $e);
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}
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$collection = new RouteCollection();
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$collection->addResource(new FileResource($path));
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// empty file
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if (null === $parsedConfig) {
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return $collection;
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}
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// not an array
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if (!\is_array($parsedConfig)) {
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throw new \InvalidArgumentException(sprintf('The file "%s" must contain a YAML array.', $path));
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}
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foreach ($parsedConfig as $name => $config) {
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if (0 === strpos($name, 'when@')) {
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if (!$this->env || 'when@'.$this->env !== $name) {
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continue;
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}
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foreach ($config as $name => $config) {
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$this->validate($config, $name.'" when "@'.$this->env, $path);
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if (isset($config['resource'])) {
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$this->parseImport($collection, $config, $path, $file);
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} else {
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$this->parseRoute($collection, $name, $config, $path);
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}
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}
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continue;
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}
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$this->validate($config, $name, $path);
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if (isset($config['resource'])) {
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$this->parseImport($collection, $config, $path, $file);
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} else {
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$this->parseRoute($collection, $name, $config, $path);
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}
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}
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return $collection;
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}
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/**
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* {@inheritdoc}
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*/
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public function supports($resource, string $type = null)
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{
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return \is_string($resource) && \in_array(pathinfo($resource, \PATHINFO_EXTENSION), ['yml', 'yaml'], true) && (!$type || 'yaml' === $type);
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}
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/**
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* Parses a route and adds it to the RouteCollection.
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*/
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protected function parseRoute(RouteCollection $collection, string $name, array $config, string $path)
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{
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if (isset($config['alias'])) {
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$alias = $collection->addAlias($name, $config['alias']);
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$deprecation = $config['deprecated'] ?? null;
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if (null !== $deprecation) {
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$alias->setDeprecated(
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$deprecation['package'],
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$deprecation['version'],
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$deprecation['message'] ?? ''
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);
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}
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return;
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}
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$defaults = $config['defaults'] ?? [];
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$requirements = $config['requirements'] ?? [];
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$options = $config['options'] ?? [];
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foreach ($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"?', $placeholder, $requirement, $name, $path));
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}
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}
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if (isset($config['controller'])) {
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$defaults['_controller'] = $config['controller'];
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}
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if (isset($config['locale'])) {
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$defaults['_locale'] = $config['locale'];
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}
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if (isset($config['format'])) {
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$defaults['_format'] = $config['format'];
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}
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if (isset($config['utf8'])) {
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$options['utf8'] = $config['utf8'];
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}
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if (isset($config['stateless'])) {
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$defaults['_stateless'] = $config['stateless'];
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}
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$routes = $this->createLocalizedRoute($collection, $name, $config['path']);
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$routes->addDefaults($defaults);
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$routes->addRequirements($requirements);
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$routes->addOptions($options);
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$routes->setSchemes($config['schemes'] ?? []);
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$routes->setMethods($config['methods'] ?? []);
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$routes->setCondition($config['condition'] ?? null);
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if (isset($config['host'])) {
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$this->addHost($routes, $config['host']);
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}
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}
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/**
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* Parses an import and adds the routes in the resource to the RouteCollection.
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*/
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protected function parseImport(RouteCollection $collection, array $config, string $path, string $file)
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{
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$type = $config['type'] ?? null;
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$prefix = $config['prefix'] ?? '';
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$defaults = $config['defaults'] ?? [];
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$requirements = $config['requirements'] ?? [];
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$options = $config['options'] ?? [];
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$host = $config['host'] ?? null;
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$condition = $config['condition'] ?? null;
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$schemes = $config['schemes'] ?? null;
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$methods = $config['methods'] ?? null;
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$trailingSlashOnRoot = $config['trailing_slash_on_root'] ?? true;
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$namePrefix = $config['name_prefix'] ?? null;
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$exclude = $config['exclude'] ?? null;
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if (isset($config['controller'])) {
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$defaults['_controller'] = $config['controller'];
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}
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if (isset($config['locale'])) {
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$defaults['_locale'] = $config['locale'];
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}
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if (isset($config['format'])) {
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$defaults['_format'] = $config['format'];
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}
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if (isset($config['utf8'])) {
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$options['utf8'] = $config['utf8'];
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}
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if (isset($config['stateless'])) {
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$defaults['_stateless'] = $config['stateless'];
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}
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$this->setCurrentDir(\dirname($path));
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/** @var RouteCollection[] $imported */
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$imported = $this->import($config['resource'], $type, false, $file, $exclude) ?: [];
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if (!\is_array($imported)) {
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$imported = [$imported];
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}
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foreach ($imported as $subCollection) {
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$this->addPrefix($subCollection, $prefix, $trailingSlashOnRoot);
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if (null !== $host) {
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$this->addHost($subCollection, $host);
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}
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if (null !== $condition) {
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$subCollection->setCondition($condition);
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}
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if (null !== $schemes) {
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$subCollection->setSchemes($schemes);
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}
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if (null !== $methods) {
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$subCollection->setMethods($methods);
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}
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if (null !== $namePrefix) {
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$subCollection->addNamePrefix($namePrefix);
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}
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$subCollection->addDefaults($defaults);
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$subCollection->addRequirements($requirements);
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$subCollection->addOptions($options);
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$collection->addCollection($subCollection);
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}
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}
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/**
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* Validates the route configuration.
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*
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* @param array $config A resource config
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* @param string $name The config key
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* @param string $path The loaded file path
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*
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* @throws \InvalidArgumentException If one of the provided config keys is not supported,
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* something is missing or the combination is nonsense
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*/
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protected function validate($config, string $name, string $path)
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{
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if (!\is_array($config)) {
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throw new \InvalidArgumentException(sprintf('The definition of "%s" in "%s" must be a YAML array.', $name, $path));
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}
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if (isset($config['alias'])) {
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$this->validateAlias($config, $name, $path);
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return;
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}
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if ($extraKeys = array_diff(array_keys($config), self::AVAILABLE_KEYS)) {
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throw new \InvalidArgumentException(sprintf('The routing file "%s" contains unsupported keys for "%s": "%s". Expected one of: "%s".', $path, $name, implode('", "', $extraKeys), implode('", "', self::AVAILABLE_KEYS)));
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}
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if (isset($config['resource']) && isset($config['path'])) {
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throw new \InvalidArgumentException(sprintf('The routing file "%s" must not specify both the "resource" key and the "path" key for "%s". Choose between an import and a route definition.', $path, $name));
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}
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if (!isset($config['resource']) && isset($config['type'])) {
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throw new \InvalidArgumentException(sprintf('The "type" key for the route definition "%s" in "%s" is unsupported. It is only available for imports in combination with the "resource" key.', $name, $path));
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}
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if (!isset($config['resource']) && !isset($config['path'])) {
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throw new \InvalidArgumentException(sprintf('You must define a "path" for the route "%s" in file "%s".', $name, $path));
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}
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if (isset($config['controller']) && isset($config['defaults']['_controller'])) {
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throw new \InvalidArgumentException(sprintf('The routing file "%s" must not specify both the "controller" key and the defaults key "_controller" for "%s".', $path, $name));
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}
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if (isset($config['stateless']) && isset($config['defaults']['_stateless'])) {
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throw new \InvalidArgumentException(sprintf('The routing file "%s" must not specify both the "stateless" key and the defaults key "_stateless" for "%s".', $path, $name));
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}
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}
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/**
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* @throws \InvalidArgumentException If one of the provided config keys is not supported,
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* something is missing or the combination is nonsense
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*/
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private function validateAlias(array $config, string $name, string $path): void
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{
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foreach ($config as $key => $value) {
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if (!\in_array($key, ['alias', 'deprecated'], true)) {
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throw new \InvalidArgumentException(sprintf('The routing file "%s" must not specify other keys than "alias" and "deprecated" for "%s".', $path, $name));
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}
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if ('deprecated' === $key) {
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if (!isset($value['package'])) {
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throw new \InvalidArgumentException(sprintf('The routing file "%s" must specify the attribute "package" of the "deprecated" option for "%s".', $path, $name));
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}
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if (!isset($value['version'])) {
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throw new \InvalidArgumentException(sprintf('The routing file "%s" must specify the attribute "version" of the "deprecated" option for "%s".', $path, $name));
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}
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}
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}
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}
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}
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