429 lines
15 KiB
PHP
429 lines
15 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\DependencyInjection\Loader;
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use Symfony\Component\DependencyInjection\DefinitionDecorator;
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use Symfony\Component\DependencyInjection\Alias;
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use Symfony\Component\DependencyInjection\ContainerInterface;
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use Symfony\Component\DependencyInjection\Definition;
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use Symfony\Component\DependencyInjection\Reference;
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use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
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use Symfony\Component\DependencyInjection\Exception\RuntimeException;
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use Symfony\Component\Config\Resource\FileResource;
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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\ExpressionLanguage\Expression;
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/**
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* YamlFileLoader loads YAML files service definitions.
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*
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* The YAML format does not support anonymous services (cf. the XML loader).
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class YamlFileLoader extends FileLoader
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{
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private $yamlParser;
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/**
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* {@inheritdoc}
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*/
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public function load($resource, $type = null)
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{
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$path = $this->locator->locate($resource);
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$content = $this->loadFile($path);
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$this->container->addResource(new FileResource($path));
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// empty file
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if (null === $content) {
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return;
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}
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// imports
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$this->parseImports($content, $path);
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// parameters
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if (isset($content['parameters'])) {
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if (!is_array($content['parameters'])) {
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throw new InvalidArgumentException(sprintf('The "parameters" key should contain an array in %s. Check your YAML syntax.', $resource));
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}
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foreach ($content['parameters'] as $key => $value) {
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$this->container->setParameter($key, $this->resolveServices($value));
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}
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}
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// extensions
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$this->loadFromExtensions($content);
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// services
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$this->parseDefinitions($content, $resource);
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}
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/**
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* {@inheritdoc}
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*/
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public function supports($resource, $type = null)
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{
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return is_string($resource) && in_array(pathinfo($resource, PATHINFO_EXTENSION), array('yml', 'yaml'), true);
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}
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/**
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* Parses all imports.
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*
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* @param array $content
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* @param string $file
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*/
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private function parseImports($content, $file)
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{
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if (!isset($content['imports'])) {
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return;
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}
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if (!is_array($content['imports'])) {
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throw new InvalidArgumentException(sprintf('The "imports" key should contain an array in %s. Check your YAML syntax.', $file));
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}
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foreach ($content['imports'] as $import) {
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if (!is_array($import)) {
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throw new InvalidArgumentException(sprintf('The values in the "imports" key should be arrays in %s. Check your YAML syntax.', $file));
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}
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$this->setCurrentDir(dirname($file));
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$this->import($import['resource'], null, isset($import['ignore_errors']) ? (bool) $import['ignore_errors'] : false, $file);
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}
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}
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/**
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* Parses definitions.
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*
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* @param array $content
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* @param string $file
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*/
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private function parseDefinitions($content, $file)
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{
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if (!isset($content['services'])) {
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return;
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}
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if (!is_array($content['services'])) {
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throw new InvalidArgumentException(sprintf('The "services" key should contain an array in %s. Check your YAML syntax.', $file));
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}
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foreach ($content['services'] as $id => $service) {
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$this->parseDefinition($id, $service, $file);
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}
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}
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/**
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* Parses a definition.
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*
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* @param string $id
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* @param array $service
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* @param string $file
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*
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* @throws InvalidArgumentException When tags are invalid
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*/
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private function parseDefinition($id, $service, $file)
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{
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if (is_string($service) && 0 === strpos($service, '@')) {
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$this->container->setAlias($id, substr($service, 1));
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return;
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}
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if (!is_array($service)) {
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throw new InvalidArgumentException(sprintf('A service definition must be an array or a string starting with "@" but %s found for service "%s" in %s. Check your YAML syntax.', gettype($service), $id, $file));
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}
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if (isset($service['alias'])) {
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$public = !array_key_exists('public', $service) || (bool) $service['public'];
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$this->container->setAlias($id, new Alias($service['alias'], $public));
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return;
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}
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if (isset($service['parent'])) {
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$definition = new DefinitionDecorator($service['parent']);
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} else {
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$definition = new Definition();
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}
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if (isset($service['class'])) {
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$definition->setClass($service['class']);
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}
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if (isset($service['scope'])) {
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$definition->setScope($service['scope']);
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}
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if (isset($service['synthetic'])) {
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$definition->setSynthetic($service['synthetic']);
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}
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if (isset($service['synchronized'])) {
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@trigger_error(sprintf('The "synchronized" key of service "%s" in file "%s" is deprecated since version 2.7 and will be removed in 3.0.', $id, $file), E_USER_DEPRECATED);
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$definition->setSynchronized($service['synchronized'], 'request' !== $id);
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}
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if (isset($service['lazy'])) {
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$definition->setLazy($service['lazy']);
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}
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if (isset($service['public'])) {
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$definition->setPublic($service['public']);
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}
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if (isset($service['abstract'])) {
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$definition->setAbstract($service['abstract']);
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}
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if (isset($service['factory'])) {
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if (is_string($service['factory'])) {
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if (strpos($service['factory'], ':') !== false && strpos($service['factory'], '::') === false) {
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$parts = explode(':', $service['factory']);
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$definition->setFactory(array($this->resolveServices('@'.$parts[0]), $parts[1]));
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} else {
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$definition->setFactory($service['factory']);
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}
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} else {
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$definition->setFactory(array($this->resolveServices($service['factory'][0]), $service['factory'][1]));
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}
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}
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if (isset($service['factory_class'])) {
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@trigger_error(sprintf('The "factory_class" key of service "%s" in file "%s" is deprecated since version 2.6 and will be removed in 3.0. Use "factory" instead.', $id, $file), E_USER_DEPRECATED);
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$definition->setFactoryClass($service['factory_class']);
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}
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if (isset($service['factory_method'])) {
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@trigger_error(sprintf('The "factory_method" key of service "%s" in file "%s" is deprecated since version 2.6 and will be removed in 3.0. Use "factory" instead.', $id, $file), E_USER_DEPRECATED);
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$definition->setFactoryMethod($service['factory_method']);
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}
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if (isset($service['factory_service'])) {
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@trigger_error(sprintf('The "factory_service" key of service "%s" in file "%s" is deprecated since version 2.6 and will be removed in 3.0. Use "factory" instead.', $id, $file), E_USER_DEPRECATED);
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$definition->setFactoryService($service['factory_service']);
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}
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if (isset($service['file'])) {
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$definition->setFile($service['file']);
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}
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if (isset($service['arguments'])) {
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$definition->setArguments($this->resolveServices($service['arguments']));
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}
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if (isset($service['properties'])) {
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$definition->setProperties($this->resolveServices($service['properties']));
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}
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if (isset($service['configurator'])) {
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if (is_string($service['configurator'])) {
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$definition->setConfigurator($service['configurator']);
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} else {
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$definition->setConfigurator(array($this->resolveServices($service['configurator'][0]), $service['configurator'][1]));
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}
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}
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if (isset($service['calls'])) {
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if (!is_array($service['calls'])) {
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throw new InvalidArgumentException(sprintf('Parameter "calls" must be an array for service "%s" in %s. Check your YAML syntax.', $id, $file));
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}
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foreach ($service['calls'] as $call) {
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if (isset($call['method'])) {
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$method = $call['method'];
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$args = isset($call['arguments']) ? $this->resolveServices($call['arguments']) : array();
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} else {
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$method = $call[0];
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$args = isset($call[1]) ? $this->resolveServices($call[1]) : array();
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}
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$definition->addMethodCall($method, $args);
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}
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}
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if (isset($service['tags'])) {
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if (!is_array($service['tags'])) {
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throw new InvalidArgumentException(sprintf('Parameter "tags" must be an array for service "%s" in %s. Check your YAML syntax.', $id, $file));
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}
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foreach ($service['tags'] as $tag) {
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if (!is_array($tag)) {
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throw new InvalidArgumentException(sprintf('A "tags" entry must be an array for service "%s" in %s. Check your YAML syntax.', $id, $file));
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}
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if (!isset($tag['name'])) {
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throw new InvalidArgumentException(sprintf('A "tags" entry is missing a "name" key for service "%s" in %s.', $id, $file));
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}
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$name = $tag['name'];
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unset($tag['name']);
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foreach ($tag as $attribute => $value) {
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if (!is_scalar($value) && null !== $value) {
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throw new InvalidArgumentException(sprintf('A "tags" attribute must be of a scalar-type for service "%s", tag "%s", attribute "%s" in %s. Check your YAML syntax.', $id, $name, $attribute, $file));
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}
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}
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$definition->addTag($name, $tag);
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}
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}
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if (isset($service['decorates'])) {
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$renameId = isset($service['decoration_inner_name']) ? $service['decoration_inner_name'] : null;
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$definition->setDecoratedService($service['decorates'], $renameId);
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}
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$this->container->setDefinition($id, $definition);
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}
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/**
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* Loads a YAML file.
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*
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* @param string $file
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*
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* @return array The file content
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*
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* @throws InvalidArgumentException when the given file is not a local file or when it does not exist
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*/
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protected function loadFile($file)
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{
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if (!class_exists('Symfony\Component\Yaml\Parser')) {
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throw new RuntimeException('Unable to load YAML config files as the Symfony Yaml Component is not installed.');
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}
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if (!stream_is_local($file)) {
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throw new InvalidArgumentException(sprintf('This is not a local file "%s".', $file));
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}
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if (!file_exists($file)) {
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throw new InvalidArgumentException(sprintf('The service file "%s" is not valid.', $file));
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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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$configuration = $this->yamlParser->parse(file_get_contents($file));
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} catch (ParseException $e) {
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throw new InvalidArgumentException(sprintf('The file "%s" does not contain valid YAML.', $file), 0, $e);
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}
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return $this->validate($configuration, $file);
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}
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/**
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* Validates a YAML file.
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*
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* @param mixed $content
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* @param string $file
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*
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* @return array
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*
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* @throws InvalidArgumentException When service file is not valid
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*/
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private function validate($content, $file)
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{
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if (null === $content) {
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return $content;
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}
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if (!is_array($content)) {
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throw new InvalidArgumentException(sprintf('The service file "%s" is not valid. It should contain an array. Check your YAML syntax.', $file));
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}
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foreach ($content as $namespace => $data) {
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if (in_array($namespace, array('imports', 'parameters', 'services'))) {
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continue;
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}
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if (!$this->container->hasExtension($namespace)) {
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$extensionNamespaces = array_filter(array_map(function ($ext) { return $ext->getAlias(); }, $this->container->getExtensions()));
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throw new InvalidArgumentException(sprintf(
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'There is no extension able to load the configuration for "%s" (in %s). Looked for namespace "%s", found %s',
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$namespace,
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$file,
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$namespace,
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$extensionNamespaces ? sprintf('"%s"', implode('", "', $extensionNamespaces)) : 'none'
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));
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}
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}
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return $content;
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}
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/**
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* Resolves services.
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*
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* @param string|array $value
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*
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* @return array|string|Reference
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*/
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private function resolveServices($value)
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{
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if (is_array($value)) {
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$value = array_map(array($this, 'resolveServices'), $value);
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} elseif (is_string($value) && 0 === strpos($value, '@=')) {
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return new Expression(substr($value, 2));
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} elseif (is_string($value) && 0 === strpos($value, '@')) {
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if (0 === strpos($value, '@@')) {
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$value = substr($value, 1);
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$invalidBehavior = null;
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} elseif (0 === strpos($value, '@?')) {
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$value = substr($value, 2);
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$invalidBehavior = ContainerInterface::IGNORE_ON_INVALID_REFERENCE;
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} else {
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$value = substr($value, 1);
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$invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE;
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}
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if ('=' === substr($value, -1)) {
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$value = substr($value, 0, -1);
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$strict = false;
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} else {
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$strict = true;
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}
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if (null !== $invalidBehavior) {
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$value = new Reference($value, $invalidBehavior, $strict);
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}
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}
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return $value;
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}
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/**
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* Loads from Extensions.
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*
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* @param array $content
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*/
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private function loadFromExtensions($content)
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{
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foreach ($content as $namespace => $values) {
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if (in_array($namespace, array('imports', 'parameters', 'services'))) {
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continue;
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}
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if (!is_array($values)) {
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$values = array();
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}
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$this->container->loadFromExtension($namespace, $values);
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}
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}
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}
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