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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;
use Symfony\Bridge\ProxyManager\LazyProxy\Instantiator\RuntimeInstantiator;
use Symfony\Bridge\ProxyManager\LazyProxy\PhpDumper\ProxyDumper;
use Symfony\Component\Config\ConfigCache;
use Symfony\Component\Config\Loader\DelegatingLoader;
use Symfony\Component\Config\Loader\LoaderResolver;
use Symfony\Component\Debug\DebugClassLoader as LegacyDebugClassLoader;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\Compiler\PassConfig;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\DependencyInjection\Dumper\PhpDumper;
use Symfony\Component\DependencyInjection\Dumper\Preloader;
use Symfony\Component\DependencyInjection\Extension\ExtensionInterface;
use Symfony\Component\DependencyInjection\Loader\ClosureLoader;
use Symfony\Component\DependencyInjection\Loader\DirectoryLoader;
use Symfony\Component\DependencyInjection\Loader\GlobFileLoader;
use Symfony\Component\DependencyInjection\Loader\IniFileLoader;
use Symfony\Component\DependencyInjection\Loader\PhpFileLoader;
use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
use Symfony\Component\ErrorHandler\DebugClassLoader;
use Symfony\Component\Filesystem\Filesystem;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Bundle\BundleInterface;
use Symfony\Component\HttpKernel\CacheWarmer\WarmableInterface;
use Symfony\Component\HttpKernel\Config\FileLocator;
use Symfony\Component\HttpKernel\DependencyInjection\AddAnnotatedClassesToCachePass;
use Symfony\Component\HttpKernel\DependencyInjection\MergeExtensionConfigurationPass;
// Help opcache.preload discover always-needed symbols
class_exists(ConfigCache::class);
/**
* The Kernel is the heart of the Symfony system.
*
* It manages an environment made of bundles.
*
* Environment names must always start with a letter and
* they must only contain letters and numbers.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
abstract class Kernel implements KernelInterface, RebootableInterface, TerminableInterface
{
/**
* @var BundleInterface[]
*/
protected $bundles = [];
protected $container;
protected $environment;
protected $debug;
protected $booted = false;
protected $startTime;
private $projectDir;
private $warmupDir;
private $requestStackSize = 0;
private $resetServices = false;
private static $freshCache = [];
public const VERSION = '5.2.9';
public const VERSION_ID = 50209;
public const MAJOR_VERSION = 5;
public const MINOR_VERSION = 2;
public const RELEASE_VERSION = 9;
public const EXTRA_VERSION = '';
public const END_OF_MAINTENANCE = '07/2021';
public const END_OF_LIFE = '07/2021';
public function __construct(string $environment, bool $debug)
{
$this->environment = $environment;
$this->debug = $debug;
}
public function __clone()
{
$this->booted = false;
$this->container = null;
$this->requestStackSize = 0;
$this->resetServices = false;
}
/**
* {@inheritdoc}
*/
public function boot()
{
if (true === $this->booted) {
if (!$this->requestStackSize && $this->resetServices) {
if ($this->container->has('services_resetter')) {
$this->container->get('services_resetter')->reset();
}
$this->resetServices = false;
if ($this->debug) {
$this->startTime = microtime(true);
}
}
return;
}
if (null === $this->container) {
$this->preBoot();
}
foreach ($this->getBundles() as $bundle) {
$bundle->setContainer($this->container);
$bundle->boot();
}
$this->booted = true;
}
/**
* {@inheritdoc}
*/
public function reboot(?string $warmupDir)
{
$this->shutdown();
$this->warmupDir = $warmupDir;
$this->boot();
}
/**
* {@inheritdoc}
*/
public function terminate(Request $request, Response $response)
{
if (false === $this->booted) {
return;
}
if ($this->getHttpKernel() instanceof TerminableInterface) {
$this->getHttpKernel()->terminate($request, $response);
}
}
/**
* {@inheritdoc}
*/
public function shutdown()
{
if (false === $this->booted) {
return;
}
$this->booted = false;
foreach ($this->getBundles() as $bundle) {
$bundle->shutdown();
$bundle->setContainer(null);
}
$this->container = null;
$this->requestStackSize = 0;
$this->resetServices = false;
}
/**
* {@inheritdoc}
*/
public function handle(Request $request, int $type = HttpKernelInterface::MASTER_REQUEST, bool $catch = true)
{
if (!$this->booted) {
$container = $this->container ?? $this->preBoot();
if ($container->has('http_cache')) {
return $container->get('http_cache')->handle($request, $type, $catch);
}
}
$this->boot();
++$this->requestStackSize;
$this->resetServices = true;
try {
return $this->getHttpKernel()->handle($request, $type, $catch);
} finally {
--$this->requestStackSize;
}
}
/**
* Gets an HTTP kernel from the container.
*
* @return HttpKernelInterface
*/
protected function getHttpKernel()
{
return $this->container->get('http_kernel');
}
/**
* {@inheritdoc}
*/
public function getBundles()
{
return $this->bundles;
}
/**
* {@inheritdoc}
*/
public function getBundle(string $name)
{
if (!isset($this->bundles[$name])) {
throw new \InvalidArgumentException(sprintf('Bundle "%s" does not exist or it is not enabled. Maybe you forgot to add it in the "registerBundles()" method of your "%s.php" file?', $name, get_debug_type($this)));
}
return $this->bundles[$name];
}
/**
* {@inheritdoc}
*/
public function locateResource(string $name)
{
if ('@' !== $name[0]) {
throw new \InvalidArgumentException(sprintf('A resource name must start with @ ("%s" given).', $name));
}
if (false !== strpos($name, '..')) {
throw new \RuntimeException(sprintf('File name "%s" contains invalid characters (..).', $name));
}
$bundleName = substr($name, 1);
$path = '';
if (false !== strpos($bundleName, '/')) {
[$bundleName, $path] = explode('/', $bundleName, 2);
}
$bundle = $this->getBundle($bundleName);
if (file_exists($file = $bundle->getPath().'/'.$path)) {
return $file;
}
throw new \InvalidArgumentException(sprintf('Unable to find file "%s".', $name));
}
/**
* {@inheritdoc}
*/
public function getEnvironment()
{
return $this->environment;
}
/**
* {@inheritdoc}
*/
public function isDebug()
{
return $this->debug;
}
/**
* Gets the application root dir (path of the project's composer file).
*
* @return string The project root dir
*/
public function getProjectDir()
{
if (null === $this->projectDir) {
$r = new \ReflectionObject($this);
if (!is_file($dir = $r->getFileName())) {
throw new \LogicException(sprintf('Cannot auto-detect project dir for kernel of class "%s".', $r->name));
}
$dir = $rootDir = \dirname($dir);
while (!is_file($dir.'/composer.json')) {
if ($dir === \dirname($dir)) {
return $this->projectDir = $rootDir;
}
$dir = \dirname($dir);
}
$this->projectDir = $dir;
}
return $this->projectDir;
}
/**
* {@inheritdoc}
*/
public function getContainer()
{
if (!$this->container) {
throw new \LogicException('Cannot retrieve the container from a non-booted kernel.');
}
return $this->container;
}
/**
* @internal
*/
public function setAnnotatedClassCache(array $annotatedClasses)
{
file_put_contents(($this->warmupDir ?: $this->getBuildDir()).'/annotations.map', sprintf('<?php return %s;', var_export($annotatedClasses, true)));
}
/**
* {@inheritdoc}
*/
public function getStartTime()
{
return $this->debug && null !== $this->startTime ? $this->startTime : -\INF;
}
/**
* {@inheritdoc}
*/
public function getCacheDir()
{
return $this->getProjectDir().'/var/cache/'.$this->environment;
}
/**
* {@inheritdoc}
*/
public function getBuildDir(): string
{
// Returns $this->getCacheDir() for backward compatibility
return $this->getCacheDir();
}
/**
* {@inheritdoc}
*/
public function getLogDir()
{
return $this->getProjectDir().'/var/log';
}
/**
* {@inheritdoc}
*/
public function getCharset()
{
return 'UTF-8';
}
/**
* Gets the patterns defining the classes to parse and cache for annotations.
*/
public function getAnnotatedClassesToCompile(): array
{
return [];
}
/**
* Initializes bundles.
*
* @throws \LogicException if two bundles share a common name
*/
protected function initializeBundles()
{
// init bundles
$this->bundles = [];
foreach ($this->registerBundles() as $bundle) {
$name = $bundle->getName();
if (isset($this->bundles[$name])) {
throw new \LogicException(sprintf('Trying to register two bundles with the same name "%s".', $name));
}
$this->bundles[$name] = $bundle;
}
}
/**
* The extension point similar to the Bundle::build() method.
*
* Use this method to register compiler passes and manipulate the container during the building process.
*/
protected function build(ContainerBuilder $container)
{
}
/**
* Gets the container class.
*
* @throws \InvalidArgumentException If the generated classname is invalid
*
* @return string The container class
*/
protected function getContainerClass()
{
$class = static::class;
$class = false !== strpos($class, "@anonymous\0") ? get_parent_class($class).str_replace('.', '_', ContainerBuilder::hash($class)) : $class;
$class = str_replace('\\', '_', $class).ucfirst($this->environment).($this->debug ? 'Debug' : '').'Container';
if (!preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$/', $class)) {
throw new \InvalidArgumentException(sprintf('The environment "%s" contains invalid characters, it can only contain characters allowed in PHP class names.', $this->environment));
}
return $class;
}
/**
* Gets the container's base class.
*
* All names except Container must be fully qualified.
*
* @return string
*/
protected function getContainerBaseClass()
{
return 'Container';
}
/**
* Initializes the service container.
*
* The built version of the service container is used when fresh, otherwise the
* container is built.
*/
protected function initializeContainer()
{
$class = $this->getContainerClass();
$buildDir = $this->warmupDir ?: $this->getBuildDir();
$cache = new ConfigCache($buildDir.'/'.$class.'.php', $this->debug);
$cachePath = $cache->getPath();
// Silence E_WARNING to ignore "include" failures - don't use "@" to prevent silencing fatal errors
$errorLevel = error_reporting(\E_ALL ^ \E_WARNING);
try {
if (is_file($cachePath) && \is_object($this->container = include $cachePath)
&& (!$this->debug || (self::$freshCache[$cachePath] ?? $cache->isFresh()))
) {
self::$freshCache[$cachePath] = true;
$this->container->set('kernel', $this);
error_reporting($errorLevel);
return;
}
} catch (\Throwable $e) {
}
$oldContainer = \is_object($this->container) ? new \ReflectionClass($this->container) : $this->container = null;
try {
is_dir($buildDir) ?: mkdir($buildDir, 0777, true);
if ($lock = fopen($cachePath.'.lock', 'w')) {
flock($lock, \LOCK_EX | \LOCK_NB, $wouldBlock);
if (!flock($lock, $wouldBlock ? \LOCK_SH : \LOCK_EX)) {
fclose($lock);
$lock = null;
} elseif (!is_file($cachePath) || !\is_object($this->container = include $cachePath)) {
$this->container = null;
} elseif (!$oldContainer || \get_class($this->container) !== $oldContainer->name) {
flock($lock, \LOCK_UN);
fclose($lock);
$this->container->set('kernel', $this);
return;
}
}
} catch (\Throwable $e) {
} finally {
error_reporting($errorLevel);
}
if ($collectDeprecations = $this->debug && !\defined('PHPUNIT_COMPOSER_INSTALL')) {
$collectedLogs = [];
$previousHandler = set_error_handler(function ($type, $message, $file, $line) use (&$collectedLogs, &$previousHandler) {
if (\E_USER_DEPRECATED !== $type && \E_DEPRECATED !== $type) {
return $previousHandler ? $previousHandler($type, $message, $file, $line) : false;
}
if (isset($collectedLogs[$message])) {
++$collectedLogs[$message]['count'];
return null;
}
$backtrace = debug_backtrace(\DEBUG_BACKTRACE_IGNORE_ARGS, 5);
// Clean the trace by removing first frames added by the error handler itself.
for ($i = 0; isset($backtrace[$i]); ++$i) {
if (isset($backtrace[$i]['file'], $backtrace[$i]['line']) && $backtrace[$i]['line'] === $line && $backtrace[$i]['file'] === $file) {
$backtrace = \array_slice($backtrace, 1 + $i);
break;
}
}
for ($i = 0; isset($backtrace[$i]); ++$i) {
if (!isset($backtrace[$i]['file'], $backtrace[$i]['line'], $backtrace[$i]['function'])) {
continue;
}
if (!isset($backtrace[$i]['class']) && 'trigger_deprecation' === $backtrace[$i]['function']) {
$file = $backtrace[$i]['file'];
$line = $backtrace[$i]['line'];
$backtrace = \array_slice($backtrace, 1 + $i);
break;
}
}
// Remove frames added by DebugClassLoader.
for ($i = \count($backtrace) - 2; 0 < $i; --$i) {
if (\in_array($backtrace[$i]['class'] ?? null, [DebugClassLoader::class, LegacyDebugClassLoader::class], true)) {
$backtrace = [$backtrace[$i + 1]];
break;
}
}
$collectedLogs[$message] = [
'type' => $type,
'message' => $message,
'file' => $file,
'line' => $line,
'trace' => [$backtrace[0]],
'count' => 1,
];
return null;
});
}
try {
$container = null;
$container = $this->buildContainer();
$container->compile();
} finally {
if ($collectDeprecations) {
restore_error_handler();
@file_put_contents($buildDir.'/'.$class.'Deprecations.log', serialize(array_values($collectedLogs)));
@file_put_contents($buildDir.'/'.$class.'Compiler.log', null !== $container ? implode("\n", $container->getCompiler()->getLog()) : '');
}
}
$this->dumpContainer($cache, $container, $class, $this->getContainerBaseClass());
if ($lock) {
flock($lock, \LOCK_UN);
fclose($lock);
}
$this->container = require $cachePath;
$this->container->set('kernel', $this);
if ($oldContainer && \get_class($this->container) !== $oldContainer->name) {
// Because concurrent requests might still be using them,
// old container files are not removed immediately,
// but on a next dump of the container.
static $legacyContainers = [];
$oldContainerDir = \dirname($oldContainer->getFileName());
$legacyContainers[$oldContainerDir.'.legacy'] = true;
foreach (glob(\dirname($oldContainerDir).\DIRECTORY_SEPARATOR.'*.legacy', \GLOB_NOSORT) as $legacyContainer) {
if (!isset($legacyContainers[$legacyContainer]) && @unlink($legacyContainer)) {
(new Filesystem())->remove(substr($legacyContainer, 0, -7));
}
}
touch($oldContainerDir.'.legacy');
}
$preload = $this instanceof WarmableInterface ? (array) $this->warmUp($this->container->getParameter('kernel.cache_dir')) : [];
if ($this->container->has('cache_warmer')) {
$preload = array_merge($preload, (array) $this->container->get('cache_warmer')->warmUp($this->container->getParameter('kernel.cache_dir')));
}
if ($preload && method_exists(Preloader::class, 'append') && file_exists($preloadFile = $buildDir.'/'.$class.'.preload.php')) {
Preloader::append($preloadFile, $preload);
}
}
/**
* Returns the kernel parameters.
*
* @return array An array of kernel parameters
*/
protected function getKernelParameters()
{
$bundles = [];
$bundlesMetadata = [];
foreach ($this->bundles as $name => $bundle) {
$bundles[$name] = \get_class($bundle);
$bundlesMetadata[$name] = [
'path' => $bundle->getPath(),
'namespace' => $bundle->getNamespace(),
];
}
return [
'kernel.project_dir' => realpath($this->getProjectDir()) ?: $this->getProjectDir(),
'kernel.environment' => $this->environment,
'kernel.runtime_environment' => '%env(default:kernel.environment:APP_RUNTIME_ENV)%',
'kernel.debug' => $this->debug,
'kernel.build_dir' => realpath($buildDir = $this->warmupDir ?: $this->getBuildDir()) ?: $buildDir,
'kernel.cache_dir' => realpath($cacheDir = ($this->getCacheDir() === $this->getBuildDir() ? ($this->warmupDir ?: $this->getCacheDir()) : $this->getCacheDir())) ?: $cacheDir,
'kernel.logs_dir' => realpath($this->getLogDir()) ?: $this->getLogDir(),
'kernel.bundles' => $bundles,
'kernel.bundles_metadata' => $bundlesMetadata,
'kernel.charset' => $this->getCharset(),
'kernel.container_class' => $this->getContainerClass(),
];
}
/**
* Builds the service container.
*
* @return ContainerBuilder The compiled service container
*
* @throws \RuntimeException
*/
protected function buildContainer()
{
foreach (['cache' => $this->getCacheDir(), 'build' => $this->warmupDir ?: $this->getBuildDir(), 'logs' => $this->getLogDir()] as $name => $dir) {
if (!is_dir($dir)) {
if (false === @mkdir($dir, 0777, true) && !is_dir($dir)) {
throw new \RuntimeException(sprintf('Unable to create the "%s" directory (%s).', $name, $dir));
}
} elseif (!is_writable($dir)) {
throw new \RuntimeException(sprintf('Unable to write in the "%s" directory (%s).', $name, $dir));
}
}
$container = $this->getContainerBuilder();
$container->addObjectResource($this);
$this->prepareContainer($container);
if (null !== $cont = $this->registerContainerConfiguration($this->getContainerLoader($container))) {
$container->merge($cont);
}
$container->addCompilerPass(new AddAnnotatedClassesToCachePass($this));
return $container;
}
/**
* Prepares the ContainerBuilder before it is compiled.
*/
protected function prepareContainer(ContainerBuilder $container)
{
$extensions = [];
foreach ($this->bundles as $bundle) {
if ($extension = $bundle->getContainerExtension()) {
$container->registerExtension($extension);
}
if ($this->debug) {
$container->addObjectResource($bundle);
}
}
foreach ($this->bundles as $bundle) {
$bundle->build($container);
}
$this->build($container);
foreach ($container->getExtensions() as $extension) {
$extensions[] = $extension->getAlias();
}
// ensure these extensions are implicitly loaded
$container->getCompilerPassConfig()->setMergePass(new MergeExtensionConfigurationPass($extensions));
}
/**
* Gets a new ContainerBuilder instance used to build the service container.
*
* @return ContainerBuilder
*/
protected function getContainerBuilder()
{
$container = new ContainerBuilder();
$container->getParameterBag()->add($this->getKernelParameters());
if ($this instanceof ExtensionInterface) {
$container->registerExtension($this);
}
if ($this instanceof CompilerPassInterface) {
$container->addCompilerPass($this, PassConfig::TYPE_BEFORE_OPTIMIZATION, -10000);
}
if (class_exists(\ProxyManager\Configuration::class) && class_exists(RuntimeInstantiator::class)) {
$container->setProxyInstantiator(new RuntimeInstantiator());
}
return $container;
}
/**
* Dumps the service container to PHP code in the cache.
*
* @param string $class The name of the class to generate
* @param string $baseClass The name of the container's base class
*/
protected function dumpContainer(ConfigCache $cache, ContainerBuilder $container, string $class, string $baseClass)
{
// cache the container
$dumper = new PhpDumper($container);
if (class_exists(\ProxyManager\Configuration::class) && class_exists(ProxyDumper::class)) {
$dumper->setProxyDumper(new ProxyDumper());
}
$content = $dumper->dump([
'class' => $class,
'base_class' => $baseClass,
'file' => $cache->getPath(),
'as_files' => true,
'debug' => $this->debug,
'build_time' => $container->hasParameter('kernel.container_build_time') ? $container->getParameter('kernel.container_build_time') : time(),
'preload_classes' => array_map('get_class', $this->bundles),
]);
$rootCode = array_pop($content);
$dir = \dirname($cache->getPath()).'/';
$fs = new Filesystem();
foreach ($content as $file => $code) {
$fs->dumpFile($dir.$file, $code);
@chmod($dir.$file, 0666 & ~umask());
}
$legacyFile = \dirname($dir.key($content)).'.legacy';
if (is_file($legacyFile)) {
@unlink($legacyFile);
}
$cache->write($rootCode, $container->getResources());
}
/**
* Returns a loader for the container.
*
* @return DelegatingLoader The loader
*/
protected function getContainerLoader(ContainerInterface $container)
{
$locator = new FileLocator($this);
$resolver = new LoaderResolver([
new XmlFileLoader($container, $locator),
new YamlFileLoader($container, $locator),
new IniFileLoader($container, $locator),
new PhpFileLoader($container, $locator),
new GlobFileLoader($container, $locator),
new DirectoryLoader($container, $locator),
new ClosureLoader($container),
]);
return new DelegatingLoader($resolver);
}
private function preBoot(): ContainerInterface
{
if ($this->debug) {
$this->startTime = microtime(true);
}
if ($this->debug && !isset($_ENV['SHELL_VERBOSITY']) && !isset($_SERVER['SHELL_VERBOSITY'])) {
putenv('SHELL_VERBOSITY=3');
$_ENV['SHELL_VERBOSITY'] = 3;
$_SERVER['SHELL_VERBOSITY'] = 3;
}
$this->initializeBundles();
$this->initializeContainer();
$container = $this->container;
if ($container->hasParameter('kernel.trusted_hosts') && $trustedHosts = $container->getParameter('kernel.trusted_hosts')) {
Request::setTrustedHosts($trustedHosts);
}
if ($container->hasParameter('kernel.trusted_proxies') && $container->hasParameter('kernel.trusted_headers') && $trustedProxies = $container->getParameter('kernel.trusted_proxies')) {
Request::setTrustedProxies(\is_array($trustedProxies) ? $trustedProxies : array_map('trim', explode(',', $trustedProxies)), $container->getParameter('kernel.trusted_headers'));
}
return $container;
}
/**
* Removes comments from a PHP source string.
*
* We don't use the PHP php_strip_whitespace() function
* as we want the content to be readable and well-formatted.
*
* @return string The PHP string with the comments removed
*/
public static function stripComments(string $source)
{
if (!\function_exists('token_get_all')) {
return $source;
}
$rawChunk = '';
$output = '';
$tokens = token_get_all($source);
$ignoreSpace = false;
for ($i = 0; isset($tokens[$i]); ++$i) {
$token = $tokens[$i];
if (!isset($token[1]) || 'b"' === $token) {
$rawChunk .= $token;
} elseif (\T_START_HEREDOC === $token[0]) {
$output .= $rawChunk.$token[1];
do {
$token = $tokens[++$i];
$output .= isset($token[1]) && 'b"' !== $token ? $token[1] : $token;
} while (\T_END_HEREDOC !== $token[0]);
$rawChunk = '';
} elseif (\T_WHITESPACE === $token[0]) {
if ($ignoreSpace) {
$ignoreSpace = false;
continue;
}
// replace multiple new lines with a single newline
$rawChunk .= preg_replace(['/\n{2,}/S'], "\n", $token[1]);
} elseif (\in_array($token[0], [\T_COMMENT, \T_DOC_COMMENT])) {
if (!\in_array($rawChunk[\strlen($rawChunk) - 1], [' ', "\n", "\r", "\t"], true)) {
$rawChunk .= ' ';
}
$ignoreSpace = true;
} else {
$rawChunk .= $token[1];
// The PHP-open tag already has a new-line
if (\T_OPEN_TAG === $token[0]) {
$ignoreSpace = true;
} else {
$ignoreSpace = false;
}
}
}
$output .= $rawChunk;
unset($tokens, $rawChunk);
gc_mem_caches();
return $output;
}
/**
* @return array
*/
public function __sleep()
{
return ['environment', 'debug'];
}
public function __wakeup()
{
if (\is_object($this->environment) || \is_object($this->debug)) {
throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
}
$this->__construct($this->environment, $this->debug);
}
}