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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\Config\Exception\FileLocatorFileNotFoundException;
use Symfony\Component\Config\Exception\LoaderLoadException;
use Symfony\Component\Config\FileLocatorInterface;
use Symfony\Component\Config\Loader\FileLoader as BaseFileLoader;
use Symfony\Component\Config\Loader\Loader;
use Symfony\Component\Config\Resource\GlobResource;
use Symfony\Component\DependencyInjection\Attribute\When;
use Symfony\Component\DependencyInjection\ChildDefinition;
use Symfony\Component\DependencyInjection\Compiler\RegisterAutoconfigureAttributesPass;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Definition;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
/**
* FileLoader is the abstract class used by all built-in loaders that are file based.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
abstract class FileLoader extends BaseFileLoader
{
public const ANONYMOUS_ID_REGEXP = '/^\.\d+_[^~]*+~[._a-zA-Z\d]{7}$/';
protected $container;
protected $isLoadingInstanceof = false;
protected $instanceof = [];
protected $interfaces = [];
protected $singlyImplemented = [];
protected $autoRegisterAliasesForSinglyImplementedInterfaces = true;
public function __construct(ContainerBuilder $container, FileLocatorInterface $locator, string $env = null)
{
$this->container = $container;
parent::__construct($locator, $env);
}
/**
* {@inheritdoc}
*
* @param bool|string $ignoreErrors Whether errors should be ignored; pass "not_found" to ignore only when the loaded resource is not found
*/
public function import($resource, string $type = null, $ignoreErrors = false, string $sourceResource = null, $exclude = null)
{
$args = \func_get_args();
if ($ignoreNotFound = 'not_found' === $ignoreErrors) {
$args[2] = false;
} elseif (!\is_bool($ignoreErrors)) {
throw new \TypeError(sprintf('Invalid argument $ignoreErrors provided to "%s::import()": boolean or "not_found" expected, "%s" given.', static::class, get_debug_type($ignoreErrors)));
}
try {
return parent::import(...$args);
} catch (LoaderLoadException $e) {
if (!$ignoreNotFound || !($prev = $e->getPrevious()) instanceof FileLocatorFileNotFoundException) {
throw $e;
}
foreach ($prev->getTrace() as $frame) {
if ('import' === ($frame['function'] ?? null) && is_a($frame['class'] ?? '', Loader::class, true)) {
break;
}
}
if (__FILE__ !== $frame['file']) {
throw $e;
}
}
return null;
}
/**
* Registers a set of classes as services using PSR-4 for discovery.
*
* @param Definition $prototype A definition to use as template
* @param string $namespace The namespace prefix of classes in the scanned directory
* @param string $resource The directory to look for classes, glob-patterns allowed
* @param string|string[]|null $exclude A globbed path of files to exclude or an array of globbed paths of files to exclude
*/
public function registerClasses(Definition $prototype, string $namespace, string $resource, $exclude = null)
{
if (!str_ends_with($namespace, '\\')) {
throw new InvalidArgumentException(sprintf('Namespace prefix must end with a "\\": "%s".', $namespace));
}
if (!preg_match('/^(?:[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+\\\\)++$/', $namespace)) {
throw new InvalidArgumentException(sprintf('Namespace is not a valid PSR-4 prefix: "%s".', $namespace));
}
$autoconfigureAttributes = new RegisterAutoconfigureAttributesPass();
$autoconfigureAttributes = $autoconfigureAttributes->accept($prototype) ? $autoconfigureAttributes : null;
$classes = $this->findClasses($namespace, $resource, (array) $exclude, $autoconfigureAttributes);
// prepare for deep cloning
$serializedPrototype = serialize($prototype);
foreach ($classes as $class => $errorMessage) {
if (null === $errorMessage && $autoconfigureAttributes && $this->env) {
$r = $this->container->getReflectionClass($class);
$attribute = null;
foreach ($r->getAttributes(When::class) as $attribute) {
if ($this->env === $attribute->newInstance()->env) {
$attribute = null;
break;
}
}
if (null !== $attribute) {
continue;
}
}
if (interface_exists($class, false)) {
$this->interfaces[] = $class;
} else {
$this->setDefinition($class, $definition = unserialize($serializedPrototype));
if (null !== $errorMessage) {
$definition->addError($errorMessage);
continue;
}
foreach (class_implements($class, false) as $interface) {
$this->singlyImplemented[$interface] = ($this->singlyImplemented[$interface] ?? $class) !== $class ? false : $class;
}
}
}
if ($this->autoRegisterAliasesForSinglyImplementedInterfaces) {
$this->registerAliasesForSinglyImplementedInterfaces();
}
}
public function registerAliasesForSinglyImplementedInterfaces()
{
foreach ($this->interfaces as $interface) {
if (!empty($this->singlyImplemented[$interface]) && !$this->container->has($interface)) {
$this->container->setAlias($interface, $this->singlyImplemented[$interface]);
}
}
$this->interfaces = $this->singlyImplemented = [];
}
/**
* Registers a definition in the container with its instanceof-conditionals.
*/
protected function setDefinition(string $id, Definition $definition)
{
$this->container->removeBindings($id);
if ($this->isLoadingInstanceof) {
if (!$definition instanceof ChildDefinition) {
throw new InvalidArgumentException(sprintf('Invalid type definition "%s": ChildDefinition expected, "%s" given.', $id, get_debug_type($definition)));
}
$this->instanceof[$id] = $definition;
} else {
$this->container->setDefinition($id, $definition->setInstanceofConditionals($this->instanceof));
}
}
private function findClasses(string $namespace, string $pattern, array $excludePatterns, ?RegisterAutoconfigureAttributesPass $autoconfigureAttributes): array
{
$parameterBag = $this->container->getParameterBag();
$excludePaths = [];
$excludePrefix = null;
$excludePatterns = $parameterBag->unescapeValue($parameterBag->resolveValue($excludePatterns));
foreach ($excludePatterns as $excludePattern) {
foreach ($this->glob($excludePattern, true, $resource, true, true) as $path => $info) {
if (null === $excludePrefix) {
$excludePrefix = $resource->getPrefix();
}
// normalize Windows slashes and remove trailing slashes
$excludePaths[rtrim(str_replace('\\', '/', $path), '/')] = true;
}
}
$pattern = $parameterBag->unescapeValue($parameterBag->resolveValue($pattern));
$classes = [];
$extRegexp = '/\\.php$/';
$prefixLen = null;
foreach ($this->glob($pattern, true, $resource, false, false, $excludePaths) as $path => $info) {
if (null === $prefixLen) {
$prefixLen = \strlen($resource->getPrefix());
if ($excludePrefix && !str_starts_with($excludePrefix, $resource->getPrefix())) {
throw new InvalidArgumentException(sprintf('Invalid "exclude" pattern when importing classes for "%s": make sure your "exclude" pattern (%s) is a subset of the "resource" pattern (%s).', $namespace, $excludePattern, $pattern));
}
}
if (isset($excludePaths[str_replace('\\', '/', $path)])) {
continue;
}
if (!preg_match($extRegexp, $path, $m) || !$info->isReadable()) {
continue;
}
$class = $namespace.ltrim(str_replace('/', '\\', substr($path, $prefixLen, -\strlen($m[0]))), '\\');
if (!preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+(?:\\\\[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+)*+$/', $class)) {
continue;
}
try {
$r = $this->container->getReflectionClass($class);
} catch (\ReflectionException $e) {
$classes[$class] = $e->getMessage();
continue;
}
// check to make sure the expected class exists
if (!$r) {
throw new InvalidArgumentException(sprintf('Expected to find class "%s" in file "%s" while importing services from resource "%s", but it was not found! Check the namespace prefix used with the resource.', $class, $path, $pattern));
}
if ($r->isInstantiable() || $r->isInterface()) {
$classes[$class] = null;
}
if ($autoconfigureAttributes && !$r->isInstantiable()) {
$autoconfigureAttributes->processClass($this->container, $r);
}
}
// track only for new & removed files
if ($resource instanceof GlobResource) {
$this->container->addResource($resource);
} else {
foreach ($resource as $path) {
$this->container->fileExists($path, false);
}
}
return $classes;
}
}