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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\HttpKernel\DependencyInjection;
use Symfony\Component\DependencyInjection\Attribute\Autowire;
use Symfony\Component\DependencyInjection\Attribute\Target;
use Symfony\Component\DependencyInjection\ChildDefinition;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\Compiler\ServiceLocatorTagPass;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\DependencyInjection\Reference;
use Symfony\Component\DependencyInjection\TypedReference;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\Session\SessionInterface;
use Symfony\Component\VarExporter\ProxyHelper;
/**
* Creates the service-locators required by ServiceValueResolver.
*
* @author Nicolas Grekas <p@tchwork.com>
*/
class RegisterControllerArgumentLocatorsPass implements CompilerPassInterface
{
public function process(ContainerBuilder $container)
{
if (!$container->hasDefinition('argument_resolver.service') && !$container->hasDefinition('argument_resolver.not_tagged_controller')) {
return;
}
$parameterBag = $container->getParameterBag();
$controllers = [];
$publicAliases = [];
foreach ($container->getAliases() as $id => $alias) {
if ($alias->isPublic() && !$alias->isPrivate()) {
$publicAliases[(string) $alias][] = $id;
}
}
$emptyAutowireAttributes = class_exists(Autowire::class) ? null : [];
foreach ($container->findTaggedServiceIds('controller.service_arguments', true) as $id => $tags) {
$def = $container->getDefinition($id);
$def->setPublic(true);
$class = $def->getClass();
$autowire = $def->isAutowired();
$bindings = $def->getBindings();
// resolve service class, taking parent definitions into account
while ($def instanceof ChildDefinition) {
$def = $container->findDefinition($def->getParent());
$class = $class ?: $def->getClass();
$bindings += $def->getBindings();
}
$class = $parameterBag->resolveValue($class);
if (!$r = $container->getReflectionClass($class)) {
throw new InvalidArgumentException(sprintf('Class "%s" used for service "%s" cannot be found.', $class, $id));
}
// get regular public methods
$methods = [];
$arguments = [];
foreach ($r->getMethods(\ReflectionMethod::IS_PUBLIC) as $r) {
if ('setContainer' === $r->name) {
continue;
}
if (!$r->isConstructor() && !$r->isDestructor() && !$r->isAbstract()) {
$methods[strtolower($r->name)] = [$r, $r->getParameters()];
}
}
// validate and collect explicit per-actions and per-arguments service references
foreach ($tags as $attributes) {
if (!isset($attributes['action']) && !isset($attributes['argument']) && !isset($attributes['id'])) {
$autowire = true;
continue;
}
foreach (['action', 'argument', 'id'] as $k) {
if (!isset($attributes[$k][0])) {
throw new InvalidArgumentException(sprintf('Missing "%s" attribute on tag "controller.service_arguments" %s for service "%s".', $k, json_encode($attributes, \JSON_UNESCAPED_UNICODE), $id));
}
}
if (!isset($methods[$action = strtolower($attributes['action'])])) {
throw new InvalidArgumentException(sprintf('Invalid "action" attribute on tag "controller.service_arguments" for service "%s": no public "%s()" method found on class "%s".', $id, $attributes['action'], $class));
}
[$r, $parameters] = $methods[$action];
$found = false;
foreach ($parameters as $p) {
if ($attributes['argument'] === $p->name) {
if (!isset($arguments[$r->name][$p->name])) {
$arguments[$r->name][$p->name] = $attributes['id'];
}
$found = true;
break;
}
}
if (!$found) {
throw new InvalidArgumentException(sprintf('Invalid "controller.service_arguments" tag for service "%s": method "%s()" has no "%s" argument on class "%s".', $id, $r->name, $attributes['argument'], $class));
}
}
foreach ($methods as [$r, $parameters]) {
/** @var \ReflectionMethod $r */
// create a per-method map of argument-names to service/type-references
$args = [];
foreach ($parameters as $p) {
/** @var \ReflectionParameter $p */
$type = preg_replace('/(^|[(|&])\\\\/', '\1', $target = ltrim(ProxyHelper::exportType($p) ?? '', '?'));
$invalidBehavior = ContainerInterface::IGNORE_ON_INVALID_REFERENCE;
$autowireAttributes = $autowire ? $emptyAutowireAttributes : [];
if (isset($arguments[$r->name][$p->name])) {
$target = $arguments[$r->name][$p->name];
if ('?' !== $target[0]) {
$invalidBehavior = ContainerInterface::RUNTIME_EXCEPTION_ON_INVALID_REFERENCE;
} elseif ('' === $target = (string) substr($target, 1)) {
throw new InvalidArgumentException(sprintf('A "controller.service_arguments" tag must have non-empty "id" attributes for service "%s".', $id));
} elseif ($p->allowsNull() && !$p->isOptional()) {
$invalidBehavior = ContainerInterface::NULL_ON_INVALID_REFERENCE;
}
} elseif (isset($bindings[$bindingName = $type.' $'.$name = Target::parseName($p)]) || isset($bindings[$bindingName = '$'.$name]) || isset($bindings[$bindingName = $type])) {
$binding = $bindings[$bindingName];
[$bindingValue, $bindingId, , $bindingType, $bindingFile] = $binding->getValues();
$binding->setValues([$bindingValue, $bindingId, true, $bindingType, $bindingFile]);
$args[$p->name] = $bindingValue;
continue;
} elseif (!$autowire || (!($autowireAttributes ??= $p->getAttributes(Autowire::class)) && (!$type || '\\' !== $target[0]))) {
continue;
} elseif (is_subclass_of($type, \UnitEnum::class)) {
// do not attempt to register enum typed arguments if not already present in bindings
continue;
} elseif (!$p->allowsNull()) {
$invalidBehavior = ContainerInterface::RUNTIME_EXCEPTION_ON_INVALID_REFERENCE;
}
if (Request::class === $type || SessionInterface::class === $type || Response::class === $type) {
continue;
}
if ($autowireAttributes) {
$value = $autowireAttributes[0]->newInstance()->value;
if ($value instanceof Reference) {
$args[$p->name] = $type ? new TypedReference($value, $type, $invalidBehavior, $p->name) : new Reference($value, $invalidBehavior);
} else {
$args[$p->name] = new Reference('.value.'.$container->hash($value));
$container->register((string) $args[$p->name], 'mixed')
->setFactory('current')
->addArgument([$value]);
}
continue;
}
if ($type && !$p->isOptional() && !$p->allowsNull() && !class_exists($type) && !interface_exists($type, false)) {
$message = sprintf('Cannot determine controller argument for "%s::%s()": the $%s argument is type-hinted with the non-existent class or interface: "%s".', $class, $r->name, $p->name, $type);
// see if the type-hint lives in the same namespace as the controller
if (0 === strncmp($type, $class, strrpos($class, '\\'))) {
$message .= ' Did you forget to add a use statement?';
}
$container->register($erroredId = '.errored.'.$container->hash($message), $type)
->addError($message);
$args[$p->name] = new Reference($erroredId, ContainerInterface::RUNTIME_EXCEPTION_ON_INVALID_REFERENCE);
} else {
$target = preg_replace('/(^|[(|&])\\\\/', '\1', $target);
$args[$p->name] = $type ? new TypedReference($target, $type, $invalidBehavior, Target::parseName($p)) : new Reference($target, $invalidBehavior);
}
}
// register the maps as a per-method service-locators
if ($args) {
$controllers[$id.'::'.$r->name] = ServiceLocatorTagPass::register($container, $args);
foreach ($publicAliases[$id] ?? [] as $alias) {
$controllers[$alias.'::'.$r->name] = clone $controllers[$id.'::'.$r->name];
}
}
}
}
$controllerLocatorRef = ServiceLocatorTagPass::register($container, $controllers);
if ($container->hasDefinition('argument_resolver.service')) {
$container->getDefinition('argument_resolver.service')
->replaceArgument(0, $controllerLocatorRef);
}
if ($container->hasDefinition('argument_resolver.not_tagged_controller')) {
$container->getDefinition('argument_resolver.not_tagged_controller')
->replaceArgument(0, $controllerLocatorRef);
}
$container->setAlias('argument_resolver.controller_locator', (string) $controllerLocatorRef);
}
}
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