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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\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\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\Filesystem\Filesystem;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Bundle\BundleInterface;
use Symfony\Component\HttpKernel\Config\FileLocator;
use Symfony\Component\HttpKernel\DependencyInjection\AddAnnotatedClassesToCachePass;
use Symfony\Component\HttpKernel\DependencyInjection\MergeExtensionConfigurationPass;
/**
* The Kernel is the heart of the Symfony system.
*
* It manages an environment made of bundles.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
abstract class Kernel implements KernelInterface, RebootableInterface, TerminableInterface
{
/**
* @var BundleInterface[]
*/
protected $bundles = array();
protected $container;
protected $rootDir;
protected $environment;
protected $debug;
protected $booted = false;
protected $name;
protected $startTime;
private $projectDir;
private $warmupDir;
private $requestStackSize = 0;
private $resetServices = false;
const VERSION = '4.1.4';
const VERSION_ID = 40104;
const MAJOR_VERSION = 4;
const MINOR_VERSION = 1;
const RELEASE_VERSION = 4;
const EXTRA_VERSION = '';
const END_OF_MAINTENANCE = '01/2019';
const END_OF_LIFE = '07/2019';
public function __construct(string $environment, bool $debug)
{
$this->environment = $environment;
$this->debug = $debug;
$this->rootDir = $this->getRootDir();
$this->name = $this->getName();
}
public function __clone()
{
$this->booted = false;
$this->container = null;
$this->requestStackSize = 0;
$this->resetServices = false;
}
/**
* Boots the current kernel.
*/
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) {
$this->startTime = microtime(true);
}
}
return;
}
if ($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;
}
// init bundles
$this->initializeBundles();
// init container
$this->initializeContainer();
foreach ($this->getBundles() as $bundle) {
$bundle->setContainer($this->container);
$bundle->boot();
}
$this->booted = true;
}
/**
* {@inheritdoc}
*/
public function reboot($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, $type = HttpKernelInterface::MASTER_REQUEST, $catch = true)
{
$this->boot();
++$this->requestStackSize;
$this->resetServices = true;
try {
return $this->getHttpKernel()->handle($request, $type, $catch);
} finally {
--$this->requestStackSize;
}
}
/**
* Gets a HTTP kernel from the container.
*
* @return HttpKernel
*/
protected function getHttpKernel()
{
return $this->container->get('http_kernel');
}
/**
* {@inheritdoc}
*/
public function getBundles()
{
return $this->bundles;
}
/**
* {@inheritdoc}
*/
public function getBundle($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?', $name, \get_class($this)));
}
return $this->bundles[$name];
}
/**
* {@inheritdoc}
*
* @throws \RuntimeException if a custom resource is hidden by a resource in a derived bundle
*/
public function locateResource($name, $dir = null, $first = true)
{
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, '/')) {
list($bundleName, $path) = explode('/', $bundleName, 2);
}
$isResource = 0 === strpos($path, 'Resources') && null !== $dir;
$overridePath = substr($path, 9);
$resourceBundle = null;
$bundle = $this->getBundle($bundleName);
$files = array();
if ($isResource && file_exists($file = $dir.'/'.$bundle->getName().$overridePath)) {
if (null !== $resourceBundle) {
throw new \RuntimeException(sprintf('"%s" resource is hidden by a resource from the "%s" derived bundle. Create a "%s" file to override the bundle resource.',
$file,
$resourceBundle,
$dir.'/'.$bundle->getName().$overridePath
));
}
$files[] = $file;
}
if (file_exists($file = $bundle->getPath().'/'.$path)) {
if ($first && !$isResource) {
return $file;
}
$files[] = $file;
$resourceBundle = $bundle->getName();
}
if (\count($files) > 0) {
return $first && $isResource ? $files[0] : $files;
}
throw new \InvalidArgumentException(sprintf('Unable to find file "%s".', $name));
}
/**
* {@inheritdoc}
*/
public function getName()
{
if (null === $this->name) {
$this->name = preg_replace('/[^a-zA-Z0-9_]+/', '', basename($this->rootDir));
if (ctype_digit($this->name[0])) {
$this->name = '_'.$this->name;
}
}
return $this->name;
}
/**
* {@inheritdoc}
*/
public function getEnvironment()
{
return $this->environment;
}
/**
* {@inheritdoc}
*/
public function isDebug()
{
return $this->debug;
}
/**
* {@inheritdoc}
*/
public function getRootDir()
{
if (null === $this->rootDir) {
$r = new \ReflectionObject($this);
$this->rootDir = \dirname($r->getFileName());
}
return $this->rootDir;
}
/**
* 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);
$dir = $rootDir = \dirname($r->getFileName());
while (!file_exists($dir.'/composer.json')) {
if ($dir === \dirname($dir)) {
return $this->projectDir = $rootDir;
}
$dir = \dirname($dir);
}
$this->projectDir = $dir;
}
return $this->projectDir;
}
/**
* {@inheritdoc}
*/
public function getContainer()
{
return $this->container;
}
/**
* @internal
*/
public function setAnnotatedClassCache(array $annotatedClasses)
{
file_put_contents(($this->warmupDir ?: $this->getCacheDir()).'/annotations.map', sprintf('<?php return %s;', var_export($annotatedClasses, true)));
}
/**
* {@inheritdoc}
*/
public function getStartTime()
{
return $this->debug ? $this->startTime : -INF;
}
/**
* {@inheritdoc}
*/
public function getCacheDir()
{
return $this->rootDir.'/cache/'.$this->environment;
}
/**
* {@inheritdoc}
*/
public function getLogDir()
{
return $this->rootDir.'/logs';
}
/**
* {@inheritdoc}
*/
public function getCharset()
{
return 'UTF-8';
}
/**
* Gets the patterns defining the classes to parse and cache for annotations.
*/
public function getAnnotatedClassesToCompile(): array
{
return array();
}
/**
* Initializes bundles.
*
* @throws \LogicException if two bundles share a common name
*/
protected function initializeBundles()
{
// init bundles
$this->bundles = array();
foreach ($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.
*
* @return string The container class
*/
protected function getContainerClass()
{
return $this->name.ucfirst($this->environment).($this->debug ? 'Debug' : '').'ProjectContainer';
}
/**
* 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 cached version of the service container is used when fresh, otherwise the
* container is built.
*/
protected function initializeContainer()
{
$class = $this->getContainerClass();
$cacheDir = $this->warmupDir ?: $this->getCacheDir();
$cache = new ConfigCache($cacheDir.'/'.$class.'.php', $this->debug);
$oldContainer = null;
if ($fresh = $cache->isFresh()) {
// Silence E_WARNING to ignore "include" failures - don't use "@" to prevent silencing fatal errors
$errorLevel = error_reporting(\E_ALL ^ \E_WARNING);
$fresh = $oldContainer = false;
try {
if (file_exists($cache->getPath()) && \is_object($this->container = include $cache->getPath())) {
$this->container->set('kernel', $this);
$oldContainer = $this->container;
$fresh = true;
}
} catch (\Throwable $e) {
} catch (\Exception $e) {
} finally {
error_reporting($errorLevel);
}
}
if ($fresh) {
return;
}
if ($this->debug) {
$collectedLogs = array();
$previousHandler = \defined('PHPUNIT_COMPOSER_INSTALL');
$previousHandler = $previousHandler ?: set_error_handler(function ($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;
}
$backtrace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 3);
// Clean the trace by removing first frames added by the error handler itself.
for ($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;
}
}
$collectedLogs[$message] = array(
'type' => $type,
'message' => $message,
'file' => $file,
'line' => $line,
'trace' => $backtrace,
'count' => 1,
);
});
}
try {
$container = null;
$container = $this->buildContainer();
$container->compile();
} finally {
if ($this->debug && true !== $previousHandler) {
restore_error_handler();
file_put_contents($cacheDir.'/'.$class.'Deprecations.log', serialize(array_values($collectedLogs)));
file_put_contents($cacheDir.'/'.$class.'Compiler.log', null !== $container ? implode("\n", $container->getCompiler()->getLog()) : '');
}
}
if (null === $oldContainer && file_exists($cache->getPath())) {
$errorLevel = error_reporting(\E_ALL ^ \E_WARNING);
try {
$oldContainer = include $cache->getPath();
} catch (\Throwable $e) {
} catch (\Exception $e) {
} finally {
error_reporting($errorLevel);
}
}
$oldContainer = \is_object($oldContainer) ? new \ReflectionClass($oldContainer) : false;
$this->dumpContainer($cache, $container, $class, $this->getContainerBaseClass());
$this->container = require $cache->getPath();
$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 = array();
$oldContainerDir = \dirname($oldContainer->getFileName());
$legacyContainers[$oldContainerDir.'.legacy'] = true;
foreach (glob(\dirname($oldContainerDir).\DIRECTORY_SEPARATOR.'*.legacy') as $legacyContainer) {
if (!isset($legacyContainers[$legacyContainer]) && @unlink($legacyContainer)) {
(new Filesystem())->remove(substr($legacyContainer, 0, -7));
}
}
touch($oldContainerDir.'.legacy');
}
if ($this->container->has('cache_warmer')) {
$this->container->get('cache_warmer')->warmUp($this->container->getParameter('kernel.cache_dir'));
}
}
/**
* Returns the kernel parameters.
*
* @return array An array of kernel parameters
*/
protected function getKernelParameters()
{
$bundles = array();
$bundlesMetadata = array();
foreach ($this->bundles as $name => $bundle) {
$bundles[$name] = \get_class($bundle);
$bundlesMetadata[$name] = array(
'path' => $bundle->getPath(),
'namespace' => $bundle->getNamespace(),
);
}
return array(
'kernel.root_dir' => realpath($this->rootDir) ?: $this->rootDir,
'kernel.project_dir' => realpath($this->getProjectDir()) ?: $this->getProjectDir(),
'kernel.environment' => $this->environment,
'kernel.debug' => $this->debug,
'kernel.name' => $this->name,
'kernel.cache_dir' => realpath($cacheDir = $this->warmupDir ?: $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 (array('cache' => $this->warmupDir ?: $this->getCacheDir(), '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)\n", $name, $dir));
}
} elseif (!is_writable($dir)) {
throw new \RuntimeException(sprintf("Unable to write in the %s directory (%s)\n", $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)
{
$extensions = array();
foreach ($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 CompilerPassInterface) {
$container->addCompilerPass($this, PassConfig::TYPE_BEFORE_OPTIMIZATION, -10000);
}
if (class_exists('ProxyManager\Configuration') && class_exists('Symfony\Bridge\ProxyManager\LazyProxy\Instantiator\RuntimeInstantiator')) {
$container->setProxyInstantiator(new RuntimeInstantiator());
}
return $container;
}
/**
* Dumps the service container to PHP code in the cache.
*
* @param ConfigCache $cache The config cache
* @param ContainerBuilder $container The service container
* @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, $class, $baseClass)
{
// cache the container
$dumper = new PhpDumper($container);
if (class_exists('ProxyManager\Configuration') && class_exists('Symfony\Bridge\ProxyManager\LazyProxy\PhpDumper\ProxyDumper')) {
$dumper->setProxyDumper(new ProxyDumper());
}
$content = $dumper->dump(array(
'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(),
));
$rootCode = array_pop($content);
$dir = \dirname($cache->getPath()).'/';
$fs = new Filesystem();
foreach ($content as $file => $code) {
$fs->dumpFile($dir.$file, $code);
@chmod($dir.$file, 0666 & ~umask());
}
@unlink(\dirname($dir.$file).'.legacy');
$cache->write($rootCode, $container->getResources());
}
/**
* Returns a loader for the container.
*
* @return DelegatingLoader The loader
*/
protected function getContainerLoader(ContainerInterface $container)
{
$locator = new FileLocator($this);
$resolver = new LoaderResolver(array(
new XmlFileLoader($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);
}
/**
* 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.
*
* @param string $source A PHP string
*
* @return string The PHP string with the comments removed
*/
public static function stripComments($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(array('/\n{2,}/S'), "\n", $token[1]);
} elseif (\in_array($token[0], array(T_COMMENT, T_DOC_COMMENT))) {
$ignoreSpace = true;
} else {
$rawChunk .= $token[1];
// The PHP-open tag already has a new-line
if (T_OPEN_TAG === $token[0]) {
$ignoreSpace = true;
}
}
}
$output .= $rawChunk;
// PHP 7 memory manager will not release after token_get_all(), see https://bugs.php.net/70098
unset($tokens, $rawChunk);
gc_mem_caches();
return $output;
}
public function serialize()
{
return serialize(array($this->environment, $this->debug));
}
public function unserialize($data)
{
list($environment, $debug) = unserialize($data, array('allowed_classes' => false));
$this->__construct($environment, $debug);
}
}