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- <?php
- namespace Drupal\Core\DependencyInjection\Compiler;
- use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
- use Symfony\Component\DependencyInjection\ContainerBuilder;
- use Symfony\Component\DependencyInjection\Reference;
- /**
- * Provides a compiler pass for stacked session save handlers.
- */
- class StackedSessionHandlerPass implements CompilerPassInterface {
- /**
- * {@inheritdoc}
- */
- public function process(ContainerBuilder $container) {
- if ($container->hasDefinition('session_handler')) {
- return;
- }
- $session_handler_proxies = [];
- $priorities = [];
- foreach ($container->findTaggedServiceIds('session_handler_proxy') as $id => $attributes) {
- $priorities[$id] = isset($attributes[0]['priority']) ? $attributes[0]['priority'] : 0;
- $session_handler_proxies[$id] = $container->getDefinition($id);
- }
- array_multisort($priorities, SORT_ASC, $session_handler_proxies);
- $decorated_id = 'session_handler.storage';
- foreach ($session_handler_proxies as $id => $decorator) {
- // Prepend the inner session handler as first constructor argument.
- $arguments = $decorator->getArguments();
- array_unshift($arguments, new Reference($decorated_id));
- $decorator->setArguments($arguments);
- $decorated_id = $id;
- }
- $container->setAlias('session_handler', $decorated_id);
- }
- }
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