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Kernel.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\HttpKernel;
013
014 use Symfony\Bridge\ProxyManager\LazyProxy\Instantiator\RuntimeInstantiator;
015 use Symfony\Bridge\ProxyManager\LazyProxy\PhpDumper\ProxyDumper;
016 use Symfony\Component\ClassLoader\ClassCollectionLoader;
017 use Symfony\Component\Config\ConfigCache;
018 use Symfony\Component\Config\Loader\DelegatingLoader;
019 use Symfony\Component\Config\Loader\LoaderResolver;
020 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
021 use Symfony\Component\DependencyInjection\Compiler\PassConfig;
022 use Symfony\Component\DependencyInjection\ContainerBuilder;
023 use Symfony\Component\DependencyInjection\ContainerInterface;
024 use Symfony\Component\DependencyInjection\Dumper\PhpDumper;
025 use Symfony\Component\DependencyInjection\Loader\ClosureLoader;
026 use Symfony\Component\DependencyInjection\Loader\DirectoryLoader;
027 use Symfony\Component\DependencyInjection\Loader\GlobFileLoader;
028 use Symfony\Component\DependencyInjection\Loader\IniFileLoader;
029 use Symfony\Component\DependencyInjection\Loader\PhpFileLoader;
030 use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
031 use Symfony\Component\DependencyInjection\Loader\YamlFileLoader;
032 use Symfony\Component\Filesystem\Filesystem;
033 use Symfony\Component\HttpFoundation\Request;
034 use Symfony\Component\HttpFoundation\Response;
035 use Symfony\Component\HttpKernel\Bundle\BundleInterface;
036 use Symfony\Component\HttpKernel\Config\EnvParametersResource;
037 use Symfony\Component\HttpKernel\Config\FileLocator;
038 use Symfony\Component\HttpKernel\DependencyInjection\AddAnnotatedClassesToCachePass;
039 use Symfony\Component\HttpKernel\DependencyInjection\MergeExtensionConfigurationPass;
040
041 /**
042 * The Kernel is the heart of the Symfony system.
043 *
044 * It manages an environment made of bundles.
045 *
046 * @author Fabien Potencier <fabien@symfony.com>
047 */
048 abstract class Kernel implements KernelInterface, RebootableInterface, TerminableInterface
049 {
050 /**
051 * @var BundleInterface[]
052 */
053 protected $bundles = [];
054
055 protected $bundleMap;
056 protected $container;
057 protected $rootDir;
058 protected $environment;
059 protected $debug;
060 protected $booted = false;
061 protected $name;
062 protected $startTime;
063 protected $loadClassCache;
064
065 private $projectDir;
066 private $warmupDir;
067 private $requestStackSize = 0;
068 private $resetServices = false;
069
070 const VERSION = '3.4.49';
071 const VERSION_ID = 30449;
072 const MAJOR_VERSION = 3;
073 const MINOR_VERSION = 4;
074 const RELEASE_VERSION = 49;
075 const EXTRA_VERSION = '';
076
077 const END_OF_MAINTENANCE = '11/2020';
078 const END_OF_LIFE = '11/2021';
079
080 /**
081 * @param string $environment The environment
082 * @param bool $debug Whether to enable debugging or not
083 */
084 public function __construct($environment, $debug)
085 {
086 $this->environment = $environment;
087 $this->debug = (bool) $debug;
088 $this->rootDir = $this->getRootDir();
089 $this->name = $this->getName();
090 }
091
092 public function __clone()
093 {
094 $this->booted = false;
095 $this->container = null;
096 $this->requestStackSize = 0;
097 $this->resetServices = false;
098 }
099
100 /**
101 * {@inheritdoc}
102 */
103 public function boot()
104 {
105 if (true === $this->booted) {
106 if (!$this->requestStackSize && $this->resetServices) {
107 if ($this->container->has('services_resetter')) {
108 $this->container->get('services_resetter')->reset();
109 }
110 $this->resetServices = false;
111 if ($this->debug) {
112 $this->startTime = microtime(true);
113 }
114 }
115
116 return;
117 }
118 if ($this->debug) {
119 $this->startTime = microtime(true);
120 }
121 if ($this->debug && !isset($_ENV['SHELL_VERBOSITY']) && !isset($_SERVER['SHELL_VERBOSITY'])) {
122 putenv('SHELL_VERBOSITY=3');
123 $_ENV['SHELL_VERBOSITY'] = 3;
124 $_SERVER['SHELL_VERBOSITY'] = 3;
125 }
126
127 if ($this->loadClassCache) {
128 $this->doLoadClassCache($this->loadClassCache[0], $this->loadClassCache[1]);
129 }
130
131 // init bundles
132 $this->initializeBundles();
133
134 // init container
135 $this->initializeContainer();
136
137 foreach ($this->getBundles() as $bundle) {
138 $bundle->setContainer($this->container);
139 $bundle->boot();
140 }
141
142 $this->booted = true;
143 }
144
145 /**
146 * {@inheritdoc}
147 */
148 public function reboot($warmupDir)
149 {
150 $this->shutdown();
151 $this->warmupDir = $warmupDir;
152 $this->boot();
153 }
154
155 /**
156 * {@inheritdoc}
157 */
158 public function terminate(Request $request, Response $response)
159 {
160 if (false === $this->booted) {
161 return;
162 }
163
164 if ($this->getHttpKernel() instanceof TerminableInterface) {
165 $this->getHttpKernel()->terminate($request, $response);
166 }
167 }
168
169 /**
170 * {@inheritdoc}
171 */
172 public function shutdown()
173 {
174 if (false === $this->booted) {
175 return;
176 }
177
178 $this->booted = false;
179
180 foreach ($this->getBundles() as $bundle) {
181 $bundle->shutdown();
182 $bundle->setContainer(null);
183 }
184
185 $this->container = null;
186 $this->requestStackSize = 0;
187 $this->resetServices = false;
188 }
189
190 /**
191 * {@inheritdoc}
192 */
193 public function handle(Request $request, $type = HttpKernelInterface::MASTER_REQUEST, $catch = true)
194 {
195 $this->boot();
196 ++$this->requestStackSize;
197 $this->resetServices = true;
198
199 try {
200 return $this->getHttpKernel()->handle($request, $type, $catch);
201 } finally {
202 --$this->requestStackSize;
203 }
204 }
205
206 /**
207 * Gets a HTTP kernel from the container.
208 *
209 * @return HttpKernelInterface
210 */
211 protected function getHttpKernel()
212 {
213 return $this->container->get('http_kernel');
214 }
215
216 /**
217 * {@inheritdoc}
218 */
219 public function getBundles()
220 {
221 return $this->bundles;
222 }
223
224 /**
225 * {@inheritdoc}
226 */
227 public function getBundle($name, $first = true/*, $noDeprecation = false */)
228 {
229 $noDeprecation = false;
230 if (\func_num_args() >= 3) {
231 $noDeprecation = func_get_arg(2);
232 }
233
234 if (!$first && !$noDeprecation) {
235 @trigger_error(sprintf('Passing "false" as the second argument to "%s()" is deprecated as of 3.4 and will be removed in 4.0.', __METHOD__), \E_USER_DEPRECATED);
236 }
237
238 if (!isset($this->bundleMap[$name])) {
239 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, static::class));
240 }
241
242 if (true === $first) {
243 return $this->bundleMap[$name][0];
244 }
245
246 return $this->bundleMap[$name];
247 }
248
249 /**
250 * {@inheritdoc}
251 *
252 * @throws \RuntimeException if a custom resource is hidden by a resource in a derived bundle
253 */
254 public function locateResource($name, $dir = null, $first = true)
255 {
256 if ('@' !== $name[0]) {
257 throw new \InvalidArgumentException(sprintf('A resource name must start with @ ("%s" given).', $name));
258 }
259
260 if (false !== strpos($name, '..')) {
261 throw new \RuntimeException(sprintf('File name "%s" contains invalid characters (..).', $name));
262 }
263
264 $bundleName = substr($name, 1);
265 $path = '';
266 if (false !== strpos($bundleName, '/')) {
267 list($bundleName, $path) = explode('/', $bundleName, 2);
268 }
269
270 $isResource = 0 === strpos($path, 'Resources') && null !== $dir;
271 $overridePath = substr($path, 9);
272 $resourceBundle = null;
273 $bundles = $this->getBundle($bundleName, false, true);
274 $files = [];
275
276 foreach ($bundles as $bundle) {
277 if ($isResource && file_exists($file = $dir.'/'.$bundle->getName().$overridePath)) {
278 if (null !== $resourceBundle) {
279 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, $dir.'/'.$bundles[0]->getName().$overridePath));
280 }
281
282 if ($first) {
283 return $file;
284 }
285 $files[] = $file;
286 }
287
288 if (file_exists($file = $bundle->getPath().'/'.$path)) {
289 if ($first && !$isResource) {
290 return $file;
291 }
292 $files[] = $file;
293 $resourceBundle = $bundle->getName();
294 }
295 }
296
297 if (\count($files) > 0) {
298 return $first && $isResource ? $files[0] : $files;
299 }
300
301 throw new \InvalidArgumentException(sprintf('Unable to find file "%s".', $name));
302 }
303
304 /**
305 * {@inheritdoc}
306 */
307 public function getName()
308 {
309 if (null === $this->name) {
310 $this->name = preg_replace('/[^a-zA-Z0-9_]+/', '', basename($this->rootDir));
311 if (ctype_digit($this->name[0])) {
312 $this->name = '_'.$this->name;
313 }
314 }
315
316 return $this->name;
317 }
318
319 /**
320 * {@inheritdoc}
321 */
322 public function getEnvironment()
323 {
324 return $this->environment;
325 }
326
327 /**
328 * {@inheritdoc}
329 */
330 public function isDebug()
331 {
332 return $this->debug;
333 }
334
335 /**
336 * {@inheritdoc}
337 */
338 public function getRootDir()
339 {
340 if (null === $this->rootDir) {
341 $r = new \ReflectionObject($this);
342 $this->rootDir = \dirname($r->getFileName());
343 }
344
345 return $this->rootDir;
346 }
347
348 /**
349 * Gets the application root dir (path of the project's composer file).
350 *
351 * @return string The project root dir
352 */
353 public function getProjectDir()
354 {
355 if (null === $this->projectDir) {
356 $r = new \ReflectionObject($this);
357
358 if (!file_exists($dir = $r->getFileName())) {
359 throw new \LogicException(sprintf('Cannot auto-detect project dir for kernel of class "%s".', $r->name));
360 }
361
362 $dir = $rootDir = \dirname($dir);
363 while (!file_exists($dir.'/composer.json')) {
364 if ($dir === \dirname($dir)) {
365 return $this->projectDir = $rootDir;
366 }
367 $dir = \dirname($dir);
368 }
369 $this->projectDir = $dir;
370 }
371
372 return $this->projectDir;
373 }
374
375 /**
376 * {@inheritdoc}
377 */
378 public function getContainer()
379 {
380 return $this->container;
381 }
382
383 /**
384 * Loads the PHP class cache.
385 *
386 * This methods only registers the fact that you want to load the cache classes.
387 * The cache will actually only be loaded when the Kernel is booted.
388 *
389 * That optimization is mainly useful when using the HttpCache class in which
390 * case the class cache is not loaded if the Response is in the cache.
391 *
392 * @param string $name The cache name prefix
393 * @param string $extension File extension of the resulting file
394 *
395 * @deprecated since version 3.3, to be removed in 4.0. The class cache is not needed anymore when using PHP 7.0.
396 */
397 public function loadClassCache($name = 'classes', $extension = '.php')
398 {
399 if (\PHP_VERSION_ID >= 70000) {
400 @trigger_error(__METHOD__.'() is deprecated since Symfony 3.3, to be removed in 4.0.', \E_USER_DEPRECATED);
401 }
402
403 $this->loadClassCache = [$name, $extension];
404 }
405
406 /**
407 * @internal
408 *
409 * @deprecated since version 3.3, to be removed in 4.0.
410 */
411 public function setClassCache(array $classes)
412 {
413 if (\PHP_VERSION_ID >= 70000) {
414 @trigger_error(__METHOD__.'() is deprecated since Symfony 3.3, to be removed in 4.0.', \E_USER_DEPRECATED);
415 }
416
417 file_put_contents(($this->warmupDir ?: $this->getCacheDir()).'/classes.map', sprintf('<?php return %s;', var_export($classes, true)));
418 }
419
420 /**
421 * @internal
422 */
423 public function setAnnotatedClassCache(array $annotatedClasses)
424 {
425 file_put_contents(($this->warmupDir ?: $this->getCacheDir()).'/annotations.map', sprintf('<?php return %s;', var_export($annotatedClasses, true)));
426 }
427
428 /**
429 * {@inheritdoc}
430 */
431 public function getStartTime()
432 {
433 return $this->debug && null !== $this->startTime ? $this->startTime : -\INF;
434 }
435
436 /**
437 * {@inheritdoc}
438 */
439 public function getCacheDir()
440 {
441 return $this->rootDir.'/cache/'.$this->environment;
442 }
443
444 /**
445 * {@inheritdoc}
446 */
447 public function getLogDir()
448 {
449 return $this->rootDir.'/logs';
450 }
451
452 /**
453 * {@inheritdoc}
454 */
455 public function getCharset()
456 {
457 return 'UTF-8';
458 }
459
460 /**
461 * @deprecated since version 3.3, to be removed in 4.0.
462 */
463 protected function doLoadClassCache($name, $extension)
464 {
465 if (\PHP_VERSION_ID >= 70000) {
466 @trigger_error(__METHOD__.'() is deprecated since Symfony 3.3, to be removed in 4.0.', \E_USER_DEPRECATED);
467 }
468 $cacheDir = $this->warmupDir ?: $this->getCacheDir();
469
470 if (!$this->booted && is_file($cacheDir.'/classes.map')) {
471 ClassCollectionLoader::load(include($cacheDir.'/classes.map'), $cacheDir, $name, $this->debug, false, $extension);
472 }
473 }
474
475 /**
476 * Initializes the data structures related to the bundle management.
477 *
478 * - the bundles property maps a bundle name to the bundle instance,
479 * - the bundleMap property maps a bundle name to the bundle inheritance hierarchy (most derived bundle first).
480 *
481 * @throws \LogicException if two bundles share a common name
482 * @throws \LogicException if a bundle tries to extend a non-registered bundle
483 * @throws \LogicException if a bundle tries to extend itself
484 * @throws \LogicException if two bundles extend the same ancestor
485 */
486 protected function initializeBundles()
487 {
488 // init bundles
489 $this->bundles = [];
490 $topMostBundles = [];
491 $directChildren = [];
492
493 foreach ($this->registerBundles() as $bundle) {
494 $name = $bundle->getName();
495 if (isset($this->bundles[$name])) {
496 throw new \LogicException(sprintf('Trying to register two bundles with the same name "%s".', $name));
497 }
498 $this->bundles[$name] = $bundle;
499
500 if ($parentName = $bundle->getParent()) {
501 @trigger_error('Bundle inheritance is deprecated as of 3.4 and will be removed in 4.0.', \E_USER_DEPRECATED);
502
503 if (isset($directChildren[$parentName])) {
504 throw new \LogicException(sprintf('Bundle "%s" is directly extended by two bundles "%s" and "%s".', $parentName, $name, $directChildren[$parentName]));
505 }
506 if ($parentName == $name) {
507 throw new \LogicException(sprintf('Bundle "%s" can not extend itself.', $name));
508 }
509 $directChildren[$parentName] = $name;
510 } else {
511 $topMostBundles[$name] = $bundle;
512 }
513 }
514
515 // look for orphans
516 if (!empty($directChildren) && \count($diff = array_diff_key($directChildren, $this->bundles))) {
517 $diff = array_keys($diff);
518
519 throw new \LogicException(sprintf('Bundle "%s" extends bundle "%s", which is not registered.', $directChildren[$diff[0]], $diff[0]));
520 }
521
522 // inheritance
523 $this->bundleMap = [];
524 foreach ($topMostBundles as $name => $bundle) {
525 $bundleMap = [$bundle];
526 $hierarchy = [$name];
527
528 while (isset($directChildren[$name])) {
529 $name = $directChildren[$name];
530 array_unshift($bundleMap, $this->bundles[$name]);
531 $hierarchy[] = $name;
532 }
533
534 foreach ($hierarchy as $hierarchyBundle) {
535 $this->bundleMap[$hierarchyBundle] = $bundleMap;
536 array_pop($bundleMap);
537 }
538 }
539 }
540
541 /**
542 * The extension point similar to the Bundle::build() method.
543 *
544 * Use this method to register compiler passes and manipulate the container during the building process.
545 */
546 protected function build(ContainerBuilder $container)
547 {
548 }
549
550 /**
551 * Gets the container class.
552 *
553 * @return string The container class
554 */
555 protected function getContainerClass()
556 {
557 return $this->name.ucfirst($this->environment).($this->debug ? 'Debug' : '').'ProjectContainer';
558 }
559
560 /**
561 * Gets the container's base class.
562 *
563 * All names except Container must be fully qualified.
564 *
565 * @return string
566 */
567 protected function getContainerBaseClass()
568 {
569 return 'Container';
570 }
571
572 /**
573 * Initializes the service container.
574 *
575 * The cached version of the service container is used when fresh, otherwise the
576 * container is built.
577 */
578 protected function initializeContainer()
579 {
580 $class = $this->getContainerClass();
581 $cacheDir = $this->warmupDir ?: $this->getCacheDir();
582 $cache = new ConfigCache($cacheDir.'/'.$class.'.php', $this->debug);
583 $oldContainer = null;
584 if ($fresh = $cache->isFresh()) {
585 // Silence E_WARNING to ignore "include" failures - don't use "@" to prevent silencing fatal errors
586 $errorLevel = error_reporting(\E_ALL ^ \E_WARNING);
587 $fresh = $oldContainer = false;
588 try {
589 if (file_exists($cache->getPath()) && \is_object($this->container = include $cache->getPath())) {
590 $this->container->set('kernel', $this);
591 $oldContainer = $this->container;
592 $fresh = true;
593 }
594 } catch (\Throwable $e) {
595 } catch (\Exception $e) {
596 } finally {
597 error_reporting($errorLevel);
598 }
599 }
600
601 if ($fresh) {
602 return;
603 }
604
605 if ($collectDeprecations = $this->debug && !\defined('PHPUNIT_COMPOSER_INSTALL')) {
606 $collectedLogs = [];
607 $previousHandler = set_error_handler(function ($type, $message, $file, $line) use (&$collectedLogs, &$previousHandler) {
608 if (\E_USER_DEPRECATED !== $type && \E_DEPRECATED !== $type) {
609 return $previousHandler ? $previousHandler($type, $message, $file, $line) : false;
610 }
611
612 if (isset($collectedLogs[$message])) {
613 ++$collectedLogs[$message]['count'];
614
615 return null;
616 }
617
618 $backtrace = debug_backtrace(\DEBUG_BACKTRACE_IGNORE_ARGS, 3);
619 // Clean the trace by removing first frames added by the error handler itself.
620 for ($i = 0; isset($backtrace[$i]); ++$i) {
621 if (isset($backtrace[$i]['file'], $backtrace[$i]['line']) && $backtrace[$i]['line'] === $line && $backtrace[$i]['file'] === $file) {
622 $backtrace = \array_slice($backtrace, 1 + $i);
623 break;
624 }
625 }
626
627 $collectedLogs[$message] = [
628 'type' => $type,
629 'message' => $message,
630 'file' => $file,
631 'line' => $line,
632 'trace' => $backtrace,
633 'count' => 1,
634 ];
635
636 return null;
637 });
638 }
639
640 try {
641 $container = null;
642 $container = $this->buildContainer();
643 $container->compile();
644 } finally {
645 if ($collectDeprecations) {
646 restore_error_handler();
647
648 file_put_contents($cacheDir.'/'.$class.'Deprecations.log', serialize(array_values($collectedLogs)));
649 file_put_contents($cacheDir.'/'.$class.'Compiler.log', null !== $container ? implode("\n", $container->getCompiler()->getLog()) : '');
650 }
651 }
652
653 if (null === $oldContainer && file_exists($cache->getPath())) {
654 $errorLevel = error_reporting(\E_ALL ^ \E_WARNING);
655 try {
656 $oldContainer = include $cache->getPath();
657 } catch (\Throwable $e) {
658 } catch (\Exception $e) {
659 } finally {
660 error_reporting($errorLevel);
661 }
662 }
663 $oldContainer = \is_object($oldContainer) ? new \ReflectionClass($oldContainer) : false;
664
665 $this->dumpContainer($cache, $container, $class, $this->getContainerBaseClass());
666 $this->container = require $cache->getPath();
667 $this->container->set('kernel', $this);
668
669 if ($oldContainer && \get_class($this->container) !== $oldContainer->name) {
670 // Because concurrent requests might still be using them,
671 // old container files are not removed immediately,
672 // but on a next dump of the container.
673 static $legacyContainers = [];
674 $oldContainerDir = \dirname($oldContainer->getFileName());
675 $legacyContainers[$oldContainerDir.'.legacy'] = true;
676 foreach (glob(\dirname($oldContainerDir).\DIRECTORY_SEPARATOR.'*.legacy', \GLOB_NOSORT) as $legacyContainer) {
677 if (!isset($legacyContainers[$legacyContainer]) && @unlink($legacyContainer)) {
678 (new Filesystem())->remove(substr($legacyContainer, 0, -7));
679 }
680 }
681
682 touch($oldContainerDir.'.legacy');
683 }
684
685 if ($this->container->has('cache_warmer')) {
686 $this->container->get('cache_warmer')->warmUp($this->container->getParameter('kernel.cache_dir'));
687 }
688 }
689
690 /**
691 * Returns the kernel parameters.
692 *
693 * @return array An array of kernel parameters
694 */
695 protected function getKernelParameters()
696 {
697 $bundles = [];
698 $bundlesMetadata = [];
699
700 foreach ($this->bundles as $name => $bundle) {
701 $bundles[$name] = \get_class($bundle);
702 $bundlesMetadata[$name] = [
703 'parent' => $bundle->getParent(),
704 'path' => $bundle->getPath(),
705 'namespace' => $bundle->getNamespace(),
706 ];
707 }
708
709 return array_merge(
710 [
711 'kernel.root_dir' => realpath($this->rootDir) ?: $this->rootDir,
712 'kernel.project_dir' => realpath($this->getProjectDir()) ?: $this->getProjectDir(),
713 'kernel.environment' => $this->environment,
714 'kernel.debug' => $this->debug,
715 'kernel.name' => $this->name,
716 'kernel.cache_dir' => realpath($cacheDir = $this->warmupDir ?: $this->getCacheDir()) ?: $cacheDir,
717 'kernel.logs_dir' => realpath($this->getLogDir()) ?: $this->getLogDir(),
718 'kernel.bundles' => $bundles,
719 'kernel.bundles_metadata' => $bundlesMetadata,
720 'kernel.charset' => $this->getCharset(),
721 'kernel.container_class' => $this->getContainerClass(),
722 ],
723 $this->getEnvParameters(false)
724 );
725 }
726
727 /**
728 * Gets the environment parameters.
729 *
730 * Only the parameters starting with "SYMFONY__" are considered.
731 *
732 * @return array An array of parameters
733 *
734 * @deprecated since version 3.3, to be removed in 4.0
735 */
736 protected function getEnvParameters()
737 {
738 if (0 === \func_num_args() || func_get_arg(0)) {
739 @trigger_error(sprintf('The "%s()" method is deprecated as of 3.3 and will be removed in 4.0. Use the %%env()%% syntax to get the value of any environment variable from configuration files instead.', __METHOD__), \E_USER_DEPRECATED);
740 }
741
742 $parameters = [];
743 foreach ($_SERVER as $key => $value) {
744 if (0 === strpos($key, 'SYMFONY__')) {
745 @trigger_error(sprintf('The support of special environment variables that start with SYMFONY__ (such as "%s") is deprecated as of 3.3 and will be removed in 4.0. Use the %%env()%% syntax instead to get the value of environment variables in configuration files.', $key), \E_USER_DEPRECATED);
746 $parameters[strtolower(str_replace('__', '.', substr($key, 9)))] = $value;
747 }
748 }
749
750 return $parameters;
751 }
752
753 /**
754 * Builds the service container.
755 *
756 * @return ContainerBuilder The compiled service container
757 *
758 * @throws \RuntimeException
759 */
760 protected function buildContainer()
761 {
762 foreach (['cache' => $this->warmupDir ?: $this->getCacheDir(), 'logs' => $this->getLogDir()] as $name => $dir) {
763 if (!is_dir($dir)) {
764 if (false === @mkdir($dir, 0777, true) && !is_dir($dir)) {
765 throw new \RuntimeException(sprintf('Unable to create the "%s" directory (%s).', $name, $dir));
766 }
767 } elseif (!is_writable($dir)) {
768 throw new \RuntimeException(sprintf('Unable to write in the "%s" directory (%s).', $name, $dir));
769 }
770 }
771
772 $container = $this->getContainerBuilder();
773 $container->addObjectResource($this);
774 $this->prepareContainer($container);
775
776 if (null !== $cont = $this->registerContainerConfiguration($this->getContainerLoader($container))) {
777 $container->merge($cont);
778 }
779
780 $container->addCompilerPass(new AddAnnotatedClassesToCachePass($this));
781 $container->addResource(new EnvParametersResource('SYMFONY__'));
782
783 return $container;
784 }
785
786 /**
787 * Prepares the ContainerBuilder before it is compiled.
788 */
789 protected function prepareContainer(ContainerBuilder $container)
790 {
791 $extensions = [];
792 foreach ($this->bundles as $bundle) {
793 if ($extension = $bundle->getContainerExtension()) {
794 $container->registerExtension($extension);
795 }
796
797 if ($this->debug) {
798 $container->addObjectResource($bundle);
799 }
800 }
801
802 foreach ($this->bundles as $bundle) {
803 $bundle->build($container);
804 }
805
806 $this->build($container);
807
808 foreach ($container->getExtensions() as $extension) {
809 $extensions[] = $extension->getAlias();
810 }
811
812 // ensure these extensions are implicitly loaded
813 $container->getCompilerPassConfig()->setMergePass(new MergeExtensionConfigurationPass($extensions));
814 }
815
816 /**
817 * Gets a new ContainerBuilder instance used to build the service container.
818 *
819 * @return ContainerBuilder
820 */
821 protected function getContainerBuilder()
822 {
823 $container = new ContainerBuilder();
824 $container->getParameterBag()->add($this->getKernelParameters());
825
826 if ($this instanceof CompilerPassInterface) {
827 $container->addCompilerPass($this, PassConfig::TYPE_BEFORE_OPTIMIZATION, -10000);
828 }
829 if (class_exists('ProxyManager\Configuration') && class_exists('Symfony\Bridge\ProxyManager\LazyProxy\Instantiator\RuntimeInstantiator')) {
830 $container->setProxyInstantiator(new RuntimeInstantiator());
831 }
832
833 return $container;
834 }
835
836 /**
837 * Dumps the service container to PHP code in the cache.
838 *
839 * @param ConfigCache $cache The config cache
840 * @param ContainerBuilder $container The service container
841 * @param string $class The name of the class to generate
842 * @param string $baseClass The name of the container's base class
843 */
844 protected function dumpContainer(ConfigCache $cache, ContainerBuilder $container, $class, $baseClass)
845 {
846 // cache the container
847 $dumper = new PhpDumper($container);
848
849 if (class_exists('ProxyManager\Configuration') && class_exists('Symfony\Bridge\ProxyManager\LazyProxy\PhpDumper\ProxyDumper')) {
850 $dumper->setProxyDumper(new ProxyDumper());
851 }
852
853 $content = $dumper->dump([
854 'class' => $class,
855 'base_class' => $baseClass,
856 'file' => $cache->getPath(),
857 'as_files' => true,
858 'debug' => $this->debug,
859 'inline_class_loader_parameter' => \PHP_VERSION_ID >= 70000 && !$this->loadClassCache && !class_exists(ClassCollectionLoader::class, false) ? 'container.dumper.inline_class_loader' : null,
860 'build_time' => $container->hasParameter('kernel.container_build_time') ? $container->getParameter('kernel.container_build_time') : time(),
861 ]);
862
863 $rootCode = array_pop($content);
864 $dir = \dirname($cache->getPath()).'/';
865 $fs = new Filesystem();
866
867 foreach ($content as $file => $code) {
868 $fs->dumpFile($dir.$file, $code);
869 @chmod($dir.$file, 0666 & ~umask());
870 }
871 $legacyFile = \dirname($dir.key($content)).'.legacy';
872 if (file_exists($legacyFile)) {
873 @unlink($legacyFile);
874 }
875
876 $cache->write($rootCode, $container->getResources());
877 }
878
879 /**
880 * Returns a loader for the container.
881 *
882 * @return DelegatingLoader The loader
883 */
884 protected function getContainerLoader(ContainerInterface $container)
885 {
886 $locator = new FileLocator($this);
887 $resolver = new LoaderResolver([
888 new XmlFileLoader($container, $locator),
889 new YamlFileLoader($container, $locator),
890 new IniFileLoader($container, $locator),
891 new PhpFileLoader($container, $locator),
892 new GlobFileLoader($container, $locator),
893 new DirectoryLoader($container, $locator),
894 new ClosureLoader($container),
895 ]);
896
897 return new DelegatingLoader($resolver);
898 }
899
900 /**
901 * Removes comments from a PHP source string.
902 *
903 * We don't use the PHP php_strip_whitespace() function
904 * as we want the content to be readable and well-formatted.
905 *
906 * @param string $source A PHP string
907 *
908 * @return string The PHP string with the comments removed
909 */
910 public static function stripComments($source)
911 {
912 if (!\function_exists('token_get_all')) {
913 return $source;
914 }
915
916 $rawChunk = '';
917 $output = '';
918 $tokens = token_get_all($source);
919 $ignoreSpace = false;
920 for ($i = 0; isset($tokens[$i]); ++$i) {
921 $token = $tokens[$i];
922 if (!isset($token[1]) || 'b"' === $token) {
923 $rawChunk .= $token;
924 } elseif (\T_START_HEREDOC === $token[0]) {
925 $output .= $rawChunk.$token[1];
926 do {
927 $token = $tokens[++$i];
928 $output .= isset($token[1]) && 'b"' !== $token ? $token[1] : $token;
929 } while (\T_END_HEREDOC !== $token[0]);
930 $rawChunk = '';
931 } elseif (\T_WHITESPACE === $token[0]) {
932 if ($ignoreSpace) {
933 $ignoreSpace = false;
934
935 continue;
936 }
937
938 // replace multiple new lines with a single newline
939 $rawChunk .= preg_replace(['/\n{2,}/S'], "\n", $token[1]);
940 } elseif (\in_array($token[0], [\T_COMMENT, \T_DOC_COMMENT])) {
941 $ignoreSpace = true;
942 } else {
943 $rawChunk .= $token[1];
944
945 // The PHP-open tag already has a new-line
946 if (\T_OPEN_TAG === $token[0]) {
947 $ignoreSpace = true;
948 }
949 }
950 }
951
952 $output .= $rawChunk;
953
954 if (\PHP_VERSION_ID >= 70000) {
955 // PHP 7 memory manager will not release after token_get_all(), see https://bugs.php.net/70098
956 unset($tokens, $rawChunk);
957 gc_mem_caches();
958 }
959
960 return $output;
961 }
962
963 public function serialize()
964 {
965 return serialize([$this->environment, $this->debug]);
966 }
967
968 public function unserialize($data)
969 {
970 if (\PHP_VERSION_ID >= 70000) {
971 list($environment, $debug) = unserialize($data, ['allowed_classes' => false]);
972 } else {
973 list($environment, $debug) = unserialize($data);
974 }
975
976 $this->__construct($environment, $debug);
977 }
978 }
979