/
YamlFileLoader.php
725 lines (611 loc) · 27.3 KB
/
YamlFileLoader.php
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\DependencyInjection\Loader;
use Symfony\Component\DependencyInjection\Alias;
use Symfony\Component\DependencyInjection\Argument\ClosureProxyArgument;
use Symfony\Component\DependencyInjection\Argument\IteratorArgument;
use Symfony\Component\DependencyInjection\Argument\ServiceLocatorArgument;
use Symfony\Component\DependencyInjection\ChildDefinition;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\DependencyInjection\Definition;
use Symfony\Component\DependencyInjection\Reference;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\DependencyInjection\Exception\RuntimeException;
use Symfony\Component\Yaml\Exception\ParseException;
use Symfony\Component\Yaml\Parser as YamlParser;
use Symfony\Component\Yaml\Tag\TaggedValue;
use Symfony\Component\Yaml\Yaml;
use Symfony\Component\ExpressionLanguage\Expression;
/**
* YamlFileLoader loads YAML files service definitions.
*
* The YAML format does not support anonymous services (cf. the XML loader).
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class YamlFileLoader extends FileLoader
{
private static $serviceKeywords = array(
'alias' => 'alias',
'parent' => 'parent',
'class' => 'class',
'shared' => 'shared',
'synthetic' => 'synthetic',
'lazy' => 'lazy',
'public' => 'public',
'abstract' => 'abstract',
'deprecated' => 'deprecated',
'factory' => 'factory',
'file' => 'file',
'arguments' => 'arguments',
'properties' => 'properties',
'getters' => 'getters',
'configurator' => 'configurator',
'calls' => 'calls',
'tags' => 'tags',
'inherit_tags' => 'inherit_tags',
'decorates' => 'decorates',
'decoration_inner_name' => 'decoration_inner_name',
'decoration_priority' => 'decoration_priority',
'autowire' => 'autowire',
'autowiring_types' => 'autowiring_types',
);
private static $prototypeKeywords = array(
'resource' => 'resource',
'parent' => 'parent',
'shared' => 'shared',
'lazy' => 'lazy',
'public' => 'public',
'abstract' => 'abstract',
'deprecated' => 'deprecated',
'factory' => 'factory',
'arguments' => 'arguments',
'properties' => 'properties',
'getters' => 'getters',
'configurator' => 'configurator',
'calls' => 'calls',
'tags' => 'tags',
'inherit_tags' => 'inherit_tags',
'autowire' => 'autowire',
);
private static $defaultsKeywords = array(
'public' => 'public',
'tags' => 'tags',
'inherit_tags' => 'inherit_tags',
'autowire' => 'autowire',
);
private $yamlParser;
/**
* {@inheritdoc}
*/
public function load($resource, $type = null)
{
$path = $this->locator->locate($resource);
$content = $this->loadFile($path);
$this->container->fileExists($path);
// empty file
if (null === $content) {
return;
}
// imports
$this->parseImports($content, $path);
// parameters
if (isset($content['parameters'])) {
if (!is_array($content['parameters'])) {
throw new InvalidArgumentException(sprintf('The "parameters" key should contain an array in %s. Check your YAML syntax.', $resource));
}
foreach ($content['parameters'] as $key => $value) {
$this->container->setParameter($key, $this->resolveServices($value));
}
}
// extensions
$this->loadFromExtensions($content);
// services
$this->setCurrentDir(dirname($path));
$this->parseDefinitions($content, $resource);
}
/**
* {@inheritdoc}
*/
public function supports($resource, $type = null)
{
if (!is_string($resource)) {
return false;
}
if (null === $type && in_array(pathinfo($resource, PATHINFO_EXTENSION), array('yaml', 'yml'), true)) {
return true;
}
return in_array($type, array('yaml', 'yml'), true);
}
/**
* Parses all imports.
*
* @param array $content
* @param string $file
*/
private function parseImports(array $content, $file)
{
if (!isset($content['imports'])) {
return;
}
if (!is_array($content['imports'])) {
throw new InvalidArgumentException(sprintf('The "imports" key should contain an array in %s. Check your YAML syntax.', $file));
}
$defaultDirectory = dirname($file);
foreach ($content['imports'] as $import) {
if (!is_array($import)) {
throw new InvalidArgumentException(sprintf('The values in the "imports" key should be arrays in %s. Check your YAML syntax.', $file));
}
$this->setCurrentDir($defaultDirectory);
$this->import($import['resource'], isset($import['type']) ? $import['type'] : null, isset($import['ignore_errors']) ? (bool) $import['ignore_errors'] : false, $file);
}
}
/**
* Parses definitions.
*
* @param array $content
* @param string $file
*/
private function parseDefinitions(array $content, $file)
{
if (!isset($content['services'])) {
return;
}
if (!is_array($content['services'])) {
throw new InvalidArgumentException(sprintf('The "services" key should contain an array in %s. Check your YAML syntax.', $file));
}
$defaults = $this->parseDefaults($content, $file);
foreach ($content['services'] as $id => $service) {
$this->parseDefinition($id, $service, $file, $defaults);
}
}
/**
* @param array $content
* @param string $file
*
* @return array
*
* @throws InvalidArgumentException
*/
private function parseDefaults(array &$content, $file)
{
if (!isset($content['services']['_defaults'])) {
return array();
}
if (!is_array($defaults = $content['services']['_defaults'])) {
throw new InvalidArgumentException(sprintf('Service defaults must be an array, "%s" given in "%s".', gettype($defaults), $file));
}
if (isset($defaults['alias']) || isset($defaults['class']) || isset($defaults['factory'])) {
@trigger_error('Giving a service the "_defaults" name is deprecated since Symfony 3.3 and will be forbidden in 4.0. Rename your service.', E_USER_DEPRECATED);
return array();
}
unset($content['services']['_defaults']);
foreach ($defaults as $key => $default) {
if (!isset(self::$defaultsKeywords[$key])) {
throw new InvalidArgumentException(sprintf('The configuration key "%s" cannot be used to define a default value in "%s". Allowed keys are "%s".', $key, $file, implode('", "', self::$defaultsKeywords)));
}
}
if (!isset($defaults['tags'])) {
return $defaults;
}
if (!is_array($tags = $defaults['tags'])) {
throw new InvalidArgumentException(sprintf('Parameter "tags" in "_defaults" must be an array in %s. Check your YAML syntax.', $file));
}
foreach ($tags as $tag) {
if (!is_array($tag)) {
$tag = array('name' => $tag);
}
if (!isset($tag['name'])) {
throw new InvalidArgumentException(sprintf('A "tags" entry in "_defaults" is missing a "name" key in %s.', $file));
}
$name = $tag['name'];
unset($tag['name']);
if (!is_string($name) || '' === $name) {
throw new InvalidArgumentException(sprintf('The tag name in "_defaults" must be a non-empty string in %s.', $file));
}
foreach ($tag as $attribute => $value) {
if (!is_scalar($value) && null !== $value) {
throw new InvalidArgumentException(sprintf('Tag "%s", attribute "%s" in "_defaults" must be of a scalar-type in %s. Check your YAML syntax.', $name, $attribute, $file));
}
}
}
return $defaults;
}
/**
* Parses a definition.
*
* @param string $id
* @param array|string $service
* @param string $file
* @param array $defaults
*
* @throws InvalidArgumentException When tags are invalid
*/
private function parseDefinition($id, $service, $file, array $defaults)
{
if (is_string($service) && 0 === strpos($service, '@')) {
$public = isset($defaults['public']) ? $defaults['public'] : true;
$this->container->setAlias($id, new Alias(substr($service, 1), $public));
return;
}
if (is_array($service) && array_values($service) === $service) {
$service = array('arguments' => $service);
}
if (null === $service) {
$service = array();
}
if (!is_array($service)) {
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, $file));
}
static::checkDefinition($id, $service, $file);
if (isset($service['alias'])) {
$public = array_key_exists('public', $service) ? (bool) $service['public'] : (isset($defaults['public']) ? $defaults['public'] : true);
$this->container->setAlias($id, new Alias($service['alias'], $public));
foreach ($service as $key => $value) {
if (!in_array($key, array('alias', 'public'))) {
@trigger_error(sprintf('The configuration key "%s" is unsupported for the service "%s" which is defined as an alias in "%s". Allowed configuration keys for service aliases are "alias" and "public". The YamlFileLoader will raise an exception in Symfony 4.0, instead of silently ignoring unsupported attributes.', $key, $id, $file), E_USER_DEPRECATED);
}
}
return;
}
if (isset($service['parent'])) {
$definition = new ChildDefinition($service['parent']);
$inheritTag = isset($service['inherit_tags']) ? $service['inherit_tags'] : (isset($defaults['inherit_tags']) ? $defaults['inherit_tags'] : null);
if (null !== $inheritTag) {
$definition->setInheritTags($inheritTag);
}
$defaults = array();
} else {
$definition = new Definition();
}
if (isset($service['class'])) {
$definition->setClass($service['class']);
}
if (isset($service['shared'])) {
$definition->setShared($service['shared']);
}
if (isset($service['synthetic'])) {
$definition->setSynthetic($service['synthetic']);
}
if (isset($service['lazy'])) {
$definition->setLazy($service['lazy']);
}
$public = isset($service['public']) ? $service['public'] : (isset($defaults['public']) ? $defaults['public'] : null);
if (null !== $public) {
$definition->setPublic($public);
}
if (isset($service['abstract'])) {
$definition->setAbstract($service['abstract']);
}
if (array_key_exists('deprecated', $service)) {
$definition->setDeprecated(true, $service['deprecated']);
}
if (isset($service['factory'])) {
$definition->setFactory($this->parseCallable($service['factory'], 'factory', $id, $file));
}
if (isset($service['file'])) {
$definition->setFile($service['file']);
}
if (isset($service['arguments'])) {
$definition->setArguments($this->resolveServices($service['arguments']));
}
if (isset($service['properties'])) {
$definition->setProperties($this->resolveServices($service['properties']));
}
if (isset($service['configurator'])) {
$definition->setConfigurator($this->parseCallable($service['configurator'], 'configurator', $id, $file));
}
if (isset($service['getters'])) {
$definition->setOverriddenGetters($this->resolveServices($service['getters']));
}
if (isset($service['calls'])) {
if (!is_array($service['calls'])) {
throw new InvalidArgumentException(sprintf('Parameter "calls" must be an array for service "%s" in %s. Check your YAML syntax.', $id, $file));
}
foreach ($service['calls'] as $call) {
if (isset($call['method'])) {
$method = $call['method'];
$args = isset($call['arguments']) ? $this->resolveServices($call['arguments']) : array();
} else {
$method = $call[0];
$args = isset($call[1]) ? $this->resolveServices($call[1]) : array();
}
$definition->addMethodCall($method, $args);
}
}
$tags = isset($service['tags']) ? $service['tags'] : array();
if (!is_array($tags)) {
throw new InvalidArgumentException(sprintf('Parameter "tags" must be an array for service "%s" in %s. Check your YAML syntax.', $id, $file));
}
if (!isset($defaults['tags'])) {
// no-op
} elseif (!isset($service['inherit_tags'])) {
if (!isset($service['tags'])) {
$tags = $defaults['tags'];
}
} elseif ($service['inherit_tags']) {
$tags = array_merge($tags, $defaults['tags']);
}
foreach ($tags as $tag) {
if (!is_array($tag)) {
$tag = array('name' => $tag);
}
if (!isset($tag['name'])) {
throw new InvalidArgumentException(sprintf('A "tags" entry is missing a "name" key for service "%s" in %s.', $id, $file));
}
$name = $tag['name'];
unset($tag['name']);
if (!is_string($name) || '' === $name) {
throw new InvalidArgumentException(sprintf('The tag name for service "%s" in %s must be a non-empty string.', $id, $file));
}
foreach ($tag as $attribute => $value) {
if (!is_scalar($value) && null !== $value) {
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));
}
}
$definition->addTag($name, $tag);
}
if (isset($service['decorates'])) {
if ('' !== $service['decorates'] && '@' === $service['decorates'][0]) {
throw new InvalidArgumentException(sprintf('The value of the "decorates" option for the "%s" service must be the id of the service without the "@" prefix (replace "%s" with "%s").', $id, $service['decorates'], substr($service['decorates'], 1)));
}
$renameId = isset($service['decoration_inner_name']) ? $service['decoration_inner_name'] : null;
$priority = isset($service['decoration_priority']) ? $service['decoration_priority'] : 0;
$definition->setDecoratedService($service['decorates'], $renameId, $priority);
}
$autowire = isset($service['autowire']) ? $service['autowire'] : (isset($defaults['autowire']) ? $defaults['autowire'] : null);
if (is_array($autowire)) {
$autowiredCalls = array();
foreach ($autowire as $v) {
if (is_string($v)) {
$autowiredCalls[] = $v;
} else {
throw new InvalidArgumentException(sprintf('Parameter "autowire" must be boolean or string[] for service "%s" in %s. Check your YAML syntax.', $id, $file));
}
}
if ($autowiredCalls) {
$definition->setAutowiredCalls($autowiredCalls);
}
} elseif (null !== $autowire) {
$definition->setAutowired($autowire);
}
if (isset($service['autowiring_types'])) {
if (is_string($service['autowiring_types'])) {
$definition->addAutowiringType($service['autowiring_types']);
} else {
if (!is_array($service['autowiring_types'])) {
throw new InvalidArgumentException(sprintf('Parameter "autowiring_types" must be a string or an array for service "%s" in %s. Check your YAML syntax.', $id, $file));
}
foreach ($service['autowiring_types'] as $autowiringType) {
if (!is_string($autowiringType)) {
throw new InvalidArgumentException(sprintf('A "autowiring_types" attribute must be of type string for service "%s" in %s. Check your YAML syntax.', $id, $file));
}
$definition->addAutowiringType($autowiringType);
}
}
}
if (array_key_exists('resource', $service)) {
if (!is_string($service['resource'])) {
throw new InvalidArgumentException(sprintf('A "resource" attribute must be of type string for service "%s" in %s. Check your YAML syntax.', $id, $file));
}
$this->registerClasses($definition, $id, $service['resource']);
} else {
$this->container->setDefinition($id, $definition);
}
}
/**
* Parses a callable.
*
* @param string|array $callable A callable
* @param string $parameter A parameter (e.g. 'factory' or 'configurator')
* @param string $id A service identifier
* @param string $file A parsed file
*
* @throws InvalidArgumentException When errors are occuried
*
* @return string|array A parsed callable
*/
private function parseCallable($callable, $parameter, $id, $file)
{
if (is_string($callable)) {
if ('' !== $callable && '@' === $callable[0]) {
throw new InvalidArgumentException(sprintf('The value of the "%s" option for the "%s" service must be the id of the service without the "@" prefix (replace "%s" with "%s").', $parameter, $id, $callable, substr($callable, 1)));
}
if (false !== strpos($callable, ':') && false === strpos($callable, '::')) {
$parts = explode(':', $callable);
return array($this->resolveServices('@'.$parts[0]), $parts[1]);
}
return $callable;
}
if (is_array($callable)) {
if (isset($callable[0]) && isset($callable[1])) {
return array($this->resolveServices($callable[0]), $callable[1]);
}
if ('factory' === $parameter && isset($callable[1]) && null === $callable[0]) {
return $callable;
}
throw new InvalidArgumentException(sprintf('Parameter "%s" must contain an array with two elements for service "%s" in %s. Check your YAML syntax.', $parameter, $id, $file));
}
throw new InvalidArgumentException(sprintf('Parameter "%s" must be a string or an array for service "%s" in %s. Check your YAML syntax.', $parameter, $id, $file));
}
/**
* Loads a YAML file.
*
* @param string $file
*
* @return array The file content
*
* @throws InvalidArgumentException when the given file is not a local file or when it does not exist
*/
protected function loadFile($file)
{
if (!class_exists('Symfony\Component\Yaml\Parser')) {
throw new RuntimeException('Unable to load YAML config files as the Symfony Yaml Component is not installed.');
}
if (!stream_is_local($file)) {
throw new InvalidArgumentException(sprintf('This is not a local file "%s".', $file));
}
if (!file_exists($file)) {
throw new InvalidArgumentException(sprintf('The service file "%s" is not valid.', $file));
}
if (null === $this->yamlParser) {
$this->yamlParser = new YamlParser();
}
try {
$configuration = $this->yamlParser->parse(file_get_contents($file), Yaml::PARSE_CONSTANT | Yaml::PARSE_CUSTOM_TAGS);
} catch (ParseException $e) {
throw new InvalidArgumentException(sprintf('The file "%s" does not contain valid YAML.', $file), 0, $e);
}
return $this->validate($configuration, $file);
}
/**
* Validates a YAML file.
*
* @param mixed $content
* @param string $file
*
* @return array
*
* @throws InvalidArgumentException When service file is not valid
*/
private function validate($content, $file)
{
if (null === $content) {
return $content;
}
if (!is_array($content)) {
throw new InvalidArgumentException(sprintf('The service file "%s" is not valid. It should contain an array. Check your YAML syntax.', $file));
}
foreach ($content as $namespace => $data) {
if (in_array($namespace, array('imports', 'parameters', 'services'))) {
continue;
}
if (!$this->container->hasExtension($namespace)) {
$extensionNamespaces = array_filter(array_map(function ($ext) { return $ext->getAlias(); }, $this->container->getExtensions()));
throw new InvalidArgumentException(sprintf(
'There is no extension able to load the configuration for "%s" (in %s). Looked for namespace "%s", found %s',
$namespace,
$file,
$namespace,
$extensionNamespaces ? sprintf('"%s"', implode('", "', $extensionNamespaces)) : 'none'
));
}
}
return $content;
}
/**
* Resolves services.
*
* @param mixed $value
*
* @return array|string|Reference|ArgumentInterface
*/
private function resolveServices($value)
{
if ($value instanceof TaggedValue) {
$argument = $value->getValue();
if ('iterator' === $value->getTag()) {
if (!is_array($argument)) {
throw new InvalidArgumentException('"!iterator" tag only accepts sequences.');
}
return new IteratorArgument(array_map(array($this, 'resolveServices'), $argument));
}
if ('service_locator' === $value->getTag()) {
if (!is_array($argument)) {
throw new InvalidArgumentException('"!service_locator" tag only accepts mappings.');
}
foreach ($argument as $v) {
if (!is_string($v) || 0 !== strpos($v[0], '@') || 0 === strpos($v[0], '@@')) {
throw new InvalidArgumentException('"!service_locator" tagged values must be {key: @service} mappings.');
}
}
return new ServiceLocatorArgument(array_map(array($this, 'resolveServices'), $argument));
}
if ('closure_proxy' === $value->getTag()) {
if (!is_array($argument) || array(0, 1) !== array_keys($argument) || !is_string($argument[0]) || !is_string($argument[1]) || 0 !== strpos($argument[0], '@') || 0 === strpos($argument[0], '@@')) {
throw new InvalidArgumentException('"!closure_proxy" tagged values must be arrays of [@service, method].');
}
if (0 === strpos($argument[0], '@?')) {
$argument[0] = substr($argument[0], 2);
$invalidBehavior = ContainerInterface::IGNORE_ON_INVALID_REFERENCE;
} else {
$argument[0] = substr($argument[0], 1);
$invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE;
}
return new ClosureProxyArgument($argument[0], $argument[1], $invalidBehavior);
}
throw new InvalidArgumentException(sprintf('Unsupported tag "!%s".', $value->getTag()));
}
if (is_array($value)) {
$value = array_map(array($this, 'resolveServices'), $value);
} elseif (is_string($value) && 0 === strpos($value, '@=')) {
return new Expression(substr($value, 2));
} elseif (is_string($value) && 0 === strpos($value, '@')) {
if (0 === strpos($value, '@@')) {
$value = substr($value, 1);
$invalidBehavior = null;
} elseif (0 === strpos($value, '@?')) {
$value = substr($value, 2);
$invalidBehavior = ContainerInterface::IGNORE_ON_INVALID_REFERENCE;
} else {
$value = substr($value, 1);
$invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE;
}
if ('=' === substr($value, -1)) {
@trigger_error(sprintf('The "=" suffix that used to disable strict references in Symfony 2.x is deprecated since 3.3 and will be unsupported in 4.0. Remove it in "%s".', $value), E_USER_DEPRECATED);
$value = substr($value, 0, -1);
}
if (null !== $invalidBehavior) {
$value = new Reference($value, $invalidBehavior);
}
}
return $value;
}
/**
* Loads from Extensions.
*
* @param array $content
*/
private function loadFromExtensions(array $content)
{
foreach ($content as $namespace => $values) {
if (in_array($namespace, array('imports', 'parameters', 'services'))) {
continue;
}
if (!is_array($values)) {
$values = array();
}
$this->container->loadFromExtension($namespace, $values);
}
}
/**
* Checks the keywords used to define a service.
*
* @param string $id The service name
* @param array $definition The service definition to check
* @param string $file The loaded YAML file
*/
private static function checkDefinition($id, array $definition, $file)
{
if ($throw = isset($definition['resource'])) {
$keywords = static::$prototypeKeywords;
} else {
$keywords = static::$serviceKeywords;
}
foreach ($definition as $key => $value) {
if (!isset($keywords[$key])) {
if ($throw) {
throw new InvalidArgumentException(sprintf('The configuration key "%s" is unsupported for definition "%s" in "%s". Allowed configuration keys are "%s".', $key, $id, $file, implode('", "', $keywords)));
}
@trigger_error(sprintf('The configuration key "%s" is unsupported for service definition "%s" in "%s". Allowed configuration keys are "%s". The YamlFileLoader object will raise an exception instead in Symfony 4.0 when detecting an unsupported service configuration key.', $key, $id, $file, implode('", "', $keywords)), E_USER_DEPRECATED);
}
}
}
}