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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\Compiler;
use Symfony\Component\Config\Definition\BaseNode;
use Symfony\Component\Config\Definition\Exception\TreeWithoutRootNodeException;
use Symfony\Component\Config\Definition\Processor;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Extension\ConfigurationExtensionInterface;
use Symfony\Component\DependencyInjection\ParameterBag\EnvPlaceholderParameterBag;
use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
/**
* Validates environment variable placeholders used in extension configuration with dummy values.
*
* @author Roland Franssen <franssen.roland@gmail.com>
*/
class ValidateEnvPlaceholdersPass implements CompilerPassInterface
{
private static $typeFixtures = ['array' => [], 'bool' => false, 'float' => 0.0, 'int' => 0, 'string' => ''];
private $extensionConfig = [];
/**
* {@inheritdoc}
*/
public function process(ContainerBuilder $container)
{
$this->extensionConfig = [];
if (!class_exists(BaseNode::class) || !$extensions = $container->getExtensions()) {
return;
}
$resolvingBag = $container->getParameterBag();
if (!$resolvingBag instanceof EnvPlaceholderParameterBag) {
return;
}
$defaultBag = new ParameterBag($resolvingBag->all());
$envTypes = $resolvingBag->getProvidedTypes();
try {
foreach ($resolvingBag->getEnvPlaceholders() + $resolvingBag->getUnusedEnvPlaceholders() as $env => $placeholders) {
$values = [];
if (false === $i = strpos($env, ':')) {
$default = $defaultBag->has("env($env)") ? $defaultBag->get("env($env)") : self::$typeFixtures['string'];
$defaultType = null !== $default ? self::getType($default) : 'string';
$values[$defaultType] = $default;
} else {
$prefix = substr($env, 0, $i);
foreach ($envTypes[$prefix] ?? ['string'] as $type) {
$values[$type] = self::$typeFixtures[$type] ?? null;
}
}
foreach ($placeholders as $placeholder) {
BaseNode::setPlaceholder($placeholder, $values);
}
}
$processor = new Processor();
foreach ($extensions as $name => $extension) {
if (!$extension instanceof ConfigurationExtensionInterface || !$config = array_filter($container->getExtensionConfig($name))) {
// this extension has no semantic configuration or was not called
continue;
}
$config = $resolvingBag->resolveValue($config);
if (null === $configuration = $extension->getConfiguration($config, $container)) {
continue;
}
try {
$this->extensionConfig[$name] = $processor->processConfiguration($configuration, $config);
} catch (TreeWithoutRootNodeException $e) {
}
}
} finally {
BaseNode::resetPlaceholders();
}
$resolvingBag->clearUnusedEnvPlaceholders();
}
/**
* @internal
*/
public function getExtensionConfig(): array
{
try {
return $this->extensionConfig;
} finally {
$this->extensionConfig = [];
}
}
private static function getType($value): string
{
switch ($type = \gettype($value)) {
case 'boolean':
return 'bool';
case 'double':
return 'float';
case 'integer':
return 'int';
}
return $type;
}
}
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