DrupalKernel.php 45.1 KB
Newer Older
1
2
3
4
5
6
7
8
9
<?php

/**
 * @file
 * Definition of Drupal\Core\DrupalKernel.
 */

namespace Drupal\Core;

10
use Drupal\Component\FileCache\FileCacheFactory;
11
use Drupal\Component\ProxyBuilder\ProxyDumper;
12
13
14
15
use Drupal\Component\Utility\Crypt;
use Drupal\Component\Utility\Timer;
use Drupal\Component\Utility\Unicode;
use Drupal\Component\Utility\UrlHelper;
16
use Drupal\Core\Config\BootstrapConfigStorageFactory;
17
use Drupal\Core\Config\NullStorage;
18
use Drupal\Core\Database\Database;
19
use Drupal\Core\DependencyInjection\ContainerBuilder;
20
use Drupal\Core\DependencyInjection\ServiceProviderInterface;
21
use Drupal\Core\DependencyInjection\YamlFileLoader;
22
use Drupal\Core\Extension\ExtensionDiscovery;
23
use Drupal\Core\File\MimeType\MimeTypeGuesser;
24
use Drupal\Core\Http\TrustedHostsRequestFactory;
25
use Drupal\Core\Language\Language;
26
use Drupal\Core\PageCache\RequestPolicyInterface;
27
use Drupal\Core\PhpStorage\PhpStorageFactory;
28
use Drupal\Core\ProxyBuilder\ProxyBuilder;
29
use Drupal\Core\Site\Settings;
30
use Symfony\Cmf\Component\Routing\RouteObjectInterface;
31
use Symfony\Component\DependencyInjection\ContainerInterface;
32
use Symfony\Component\DependencyInjection\ParameterBag\ParameterBag;
33
use Symfony\Component\DependencyInjection\Dumper\PhpDumper;
34
use Symfony\Component\HttpFoundation\RedirectResponse;
35
use Symfony\Component\HttpFoundation\Request;
36
use Symfony\Component\HttpFoundation\RequestStack;
37
use Symfony\Component\HttpFoundation\Response;
38
use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
39
use Symfony\Component\HttpKernel\TerminableInterface;
40
use Composer\Autoload\ClassLoader;
41
use Symfony\Component\Routing\Route;
42
43
44

/**
 * The DrupalKernel class is the core of Drupal itself.
45
46
 *
 * This class is responsible for building the Dependency Injection Container and
47
48
49
50
51
52
53
54
 * also deals with the registration of service providers. It allows registered
 * service providers to add their services to the container. Core provides the
 * CoreServiceProvider, which, in addition to registering any core services that
 * cannot be registered in the core.services.yaml file, adds any compiler passes
 * needed by core, e.g. for processing tagged services. Each module can add its
 * own service provider, i.e. a class implementing
 * Drupal\Core\DependencyInjection\ServiceProvider, to register services to the
 * container, or modify existing services.
55
 */
56
57
class DrupalKernel implements DrupalKernelInterface, TerminableInterface {

58
  const CONTAINER_BASE_CLASS = '\Drupal\Core\DependencyInjection\Container';
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78

  /**
   * Holds the container instance.
   *
   * @var \Symfony\Component\DependencyInjection\ContainerInterface
   */
  protected $container;

  /**
   * The environment, e.g. 'testing', 'install'.
   *
   * @var string
   */
  protected $environment;

  /**
   * Whether the kernel has been booted.
   *
   * @var bool
   */
79
  protected $booted = FALSE;
80

81
82
83
84
85
86
87
  /**
   * Whether essential services have been set up properly by preHandle().
   *
   * @var bool
   */
  protected $prepared = FALSE;

88
89
90
91
  /**
   * Holds the list of enabled modules.
   *
   * @var array
92
93
   *   An associative array whose keys are module names and whose values are
   *   ignored.
94
95
96
   */
  protected $moduleList;

97
  /**
98
   * List of available modules and installation profiles.
99
   *
100
   * @var \Drupal\Core\Extension\Extension[]
101
   */
102
  protected $moduleData = array();
103
104
105
106
107
108
109
110

  /**
   * PHP code storage object to use for the compiled container.
   *
   * @var \Drupal\Component\PhpStorage\PhpStorageInterface
   */
  protected $storage;

111
  /**
112
   * The class loader object.
113
   *
114
   * @var \Composer\Autoload\ClassLoader
115
116
117
   */
  protected $classLoader;

118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
  /**
   * Config storage object used for reading enabled modules configuration.
   *
   * @var \Drupal\Core\Config\StorageInterface
   */
  protected $configStorage;

  /**
   * Whether the container can be dumped.
   *
   * @var bool
   */
  protected $allowDumping;

  /**
   * Whether the container needs to be dumped once booting is complete.
   *
   * @var bool
   */
  protected $containerNeedsDumping;

139
  /**
140
141
142
143
144
145
   * List of discovered services.yml pathnames.
   *
   * This is a nested array whose top-level keys are 'app' and 'site', denoting
   * the origin of a service provider. Site-specific providers have to be
   * collected separately, because they need to be processed last, so as to be
   * able to override services from application service providers.
146
147
148
149
150
   *
   * @var array
   */
  protected $serviceYamls;

151
  /**
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
   * List of discovered service provider class names.
   *
   * This is a nested array whose top-level keys are 'app' and 'site', denoting
   * the origin of a service provider. Site-specific providers have to be
   * collected separately, because they need to be processed last, so as to be
   * able to override services from application service providers.
   *
   * @var array
   */
  protected $serviceProviderClasses;

  /**
   * List of instantiated service provider classes.
   *
   * @see \Drupal\Core\DrupalKernel::$serviceProviderClasses
167
168
169
170
171
   *
   * @var array
   */
  protected $serviceProviders;

172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
  /**
   * Whether the PHP environment has been initialized.
   *
   * This legacy phase can only be booted once because it sets session INI
   * settings. If a session has already been started, re-generating these
   * settings would break the session.
   *
   * @var bool
   */
  protected static $isEnvironmentInitialized = FALSE;

  /**
   * The site directory.
   *
   * @var string
   */
  protected $sitePath;

190
191
192
193
194
195
196
  /**
   * The app root.
   *
   * @var string
   */
  protected $root;

197
198
199
200
  /**
   * Create a DrupalKernel object from a request.
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
201
202
203
204
205
   *   The request.
   * @param $class_loader
   *   The class loader. Normally Composer's ClassLoader, as included by the
   *   front controller, but may also be decorated; e.g.,
   *   \Symfony\Component\ClassLoader\ApcClassLoader.
206
207
208
209
210
   * @param string $environment
   *   String indicating the environment, e.g. 'prod' or 'dev'.
   * @param bool $allow_dumping
   *   (optional) FALSE to stop the container from being written to or read
   *   from disk. Defaults to TRUE.
211
   *
212
   * @return static
213
214
215
   *
   * @throws \Symfony\Component\HttpKernel\Exception\BadRequestHttpException
   *   In case the host name in the request is not trusted.
216
   */
217
  public static function createFromRequest(Request $request, $class_loader, $environment, $allow_dumping = TRUE) {
218
    // Include our bootstrap file.
219
220
    $core_root = dirname(dirname(dirname(__DIR__)));
    require_once $core_root . '/includes/bootstrap.inc';
221
    $class_loader_class = get_class($class_loader);
222
223
224
225
226
227
228

    $kernel = new static($environment, $class_loader, $allow_dumping);

    // Ensure sane php environment variables..
    static::bootEnvironment();

    // Get our most basic settings setup.
229
230
231
    $site_path = static::findSitePath($request);
    $kernel->setSitePath($site_path);
    Settings::initialize(dirname($core_root), $site_path, $class_loader);
232

233
234
    // Initialize our list of trusted HTTP Host headers to protect against
    // header attacks.
235
236
237
    $host_patterns = Settings::get('trusted_host_patterns', array());
    if (PHP_SAPI !== 'cli' && !empty($host_patterns)) {
      if (static::setupTrustedHosts($request, $host_patterns) === FALSE) {
238
239
240
241
        throw new BadRequestHttpException('The provided host name is not valid for this server.');
      }
    }

242
243
244
    // Redirect the user to the installation script if Drupal has not been
    // installed yet (i.e., if no $databases array has been defined in the
    // settings.php file) and we are not already installing.
245
    if (!Database::getConnectionInfo() && !drupal_installation_attempted() && PHP_SAPI !== 'cli') {
246
247
248
249
      $response = new RedirectResponse($request->getBasePath() . '/core/install.php');
      $response->prepare($request)->send();
    }

250
251
252
253
254
255
256
257
258
259
260
261
262
    // If the class loader is still the same, possibly upgrade to the APC class
    // loader.
    if ($class_loader_class == get_class($class_loader)
        && Settings::get('class_loader_auto_detect', TRUE)
        && Settings::get('hash_salt', FALSE)
        && function_exists('apc_fetch')) {
      $prefix = 'drupal.' . hash('sha256', 'drupal.' . Settings::getHashSalt());
      $apc_loader = new \Symfony\Component\ClassLoader\ApcClassLoader($prefix, $class_loader);
      $class_loader->unregister();
      $apc_loader->register();
      $class_loader = $apc_loader;
    }

263
264
265
    return $kernel;
  }

266
267
268
269
  /**
   * Constructs a DrupalKernel object.
   *
   * @param string $environment
270
   *   String indicating the environment, e.g. 'prod' or 'dev'.
271
272
273
274
   * @param $class_loader
   *   The class loader. Normally \Composer\Autoload\ClassLoader, as included by
   *   the front controller, but may also be decorated; e.g.,
   *   \Symfony\Component\ClassLoader\ApcClassLoader.
275
276
277
   * @param bool $allow_dumping
   *   (optional) FALSE to stop the container from being written to or read
   *   from disk. Defaults to TRUE.
278
   */
279
  public function __construct($environment, $class_loader, $allow_dumping = TRUE) {
280
    $this->environment = $environment;
281
    $this->classLoader = $class_loader;
282
    $this->allowDumping = $allow_dumping;
283
    $this->root = dirname(dirname(substr(__DIR__, 0, -strlen(__NAMESPACE__))));
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
  }

  /**
   * Returns the appropriate site directory for a request.
   *
   * Once the kernel has been created DrupalKernelInterface::getSitePath() is
   * preferred since it gets the statically cached result of this method.
   *
   * Site directories contain all site specific code. This includes settings.php
   * for bootstrap level configuration, file configuration stores, public file
   * storage and site specific modules and themes.
   *
   * Finds a matching site directory file by stripping the website's hostname
   * from left to right and pathname from right to left. By default, the
   * directory must contain a 'settings.php' file for it to match. If the
   * parameter $require_settings is set to FALSE, then a directory without a
   * 'settings.php' file will match as well. The first configuration file found
   * will be used and the remaining ones will be ignored. If no configuration
   * file is found, returns a default value 'sites/default'. See
   * default.settings.php for examples on how the URL is converted to a
   * directory.
   *
   * If a file named sites.php is present in the sites directory, it will be
   * loaded prior to scanning for directories. That file can define aliases in
   * an associative array named $sites. The array is written in the format
   * '<port>.<domain>.<path>' => 'directory'. As an example, to create a
   * directory alias for http://www.drupal.org:8080/mysite/test whose
   * configuration file is in sites/example.com, the array should be defined as:
   * @code
   * $sites = array(
   *   '8080.www.drupal.org.mysite.test' => 'example.com',
   * );
   * @endcode
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   The current request.
   * @param bool $require_settings
   *   Only directories with an existing settings.php file will be recognized.
   *   Defaults to TRUE. During initial installation, this is set to FALSE so
   *   that Drupal can detect a matching directory, then create a new
   *   settings.php file in it.
   *
   * @return string
   *   The path of the matching directory.
   *
329
330
331
   * @throws \Symfony\Component\HttpKernel\Exception\BadRequestHttpException
   *   In case the host name in the request is invalid.
   *
332
333
334
335
336
337
   * @see \Drupal\Core\DrupalKernelInterface::getSitePath()
   * @see \Drupal\Core\DrupalKernelInterface::setSitePath()
   * @see default.settings.php
   * @see example.sites.php
   */
  public static function findSitePath(Request $request, $require_settings = TRUE) {
338
339
340
341
    if (static::validateHostname($request) === FALSE) {
      throw new BadRequestHttpException();
    }

342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
    // Check for a simpletest override.
    if ($test_prefix = drupal_valid_test_ua()) {
      return 'sites/simpletest/' . substr($test_prefix, 10);
    }

    // Determine whether multi-site functionality is enabled.
    if (!file_exists(DRUPAL_ROOT . '/sites/sites.php')) {
      return 'sites/default';
    }

    // Otherwise, use find the site path using the request.
    $script_name = $request->server->get('SCRIPT_NAME');
    if (!$script_name) {
      $script_name = $request->server->get('SCRIPT_FILENAME');
    }
357
    $http_host = $request->getHost();
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389

    $sites = array();
    include DRUPAL_ROOT . '/sites/sites.php';

    $uri = explode('/', $script_name);
    $server = explode('.', implode('.', array_reverse(explode(':', rtrim($http_host, '.')))));
    for ($i = count($uri) - 1; $i > 0; $i--) {
      for ($j = count($server); $j > 0; $j--) {
        $dir = implode('.', array_slice($server, -$j)) . implode('.', array_slice($uri, 0, $i));
        if (isset($sites[$dir]) && file_exists(DRUPAL_ROOT . '/sites/' . $sites[$dir])) {
          $dir = $sites[$dir];
        }
        if (file_exists(DRUPAL_ROOT . '/sites/' . $dir . '/settings.php') || (!$require_settings && file_exists(DRUPAL_ROOT . '/sites/' . $dir))) {
          return "sites/$dir";
        }
      }
    }
    return 'sites/default';
  }

  /**
   * {@inheritdoc}
   */
  public function setSitePath($path) {
    $this->sitePath = $path;
  }

  /**
   * {@inheritdoc}
   */
  public function getSitePath() {
    return $this->sitePath;
390
391
  }

392
393
394
395
396
397
398
  /**
   * {@inheritdoc}
   */
  public function getAppRoot() {
    return $this->root;
  }

399
  /**
400
   * {@inheritdoc}
401
402
403
   */
  public function boot() {
    if ($this->booted) {
404
405
406
407
408
409
410
411
412
      return $this;
    }

    // Start a page timer:
    Timer::start('page');

    // Ensure that findSitePath is set.
    if (!$this->sitePath) {
      throw new \Exception('Kernel does not have site path set before calling boot()');
413
    }
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435

    // Initialize the FileCacheFactory component. We have to do it here instead
    // of in \Drupal\Component\FileCache\FileCacheFactory because we can not use
    // the Settings object in a component.
    $configuration = Settings::get('file_cache');

    // Provide a default configuration, if not set.
    if (!isset($configuration['default'])) {
      $configuration['default'] = [
        'class' => '\Drupal\Component\FileCache\FileCache',
        'cache_backend_class' => NULL,
        'cache_backend_configuration' => [],
      ];
      // @todo Use extension_loaded('apcu') for non-testbot
      //  https://www.drupal.org/node/2447753.
      if (function_exists('apc_fetch')) {
        $configuration['default']['cache_backend_class'] = '\Drupal\Component\FileCache\ApcuFileCacheBackend';
      }
    }
    FileCacheFactory::setConfiguration($configuration);
    FileCacheFactory::setPrefix(hash('sha256', Settings::get('hash_salt')));

436
    // Initialize the container.
437
    $this->initializeContainer();
438
439
440
441
442
443

    // Ensure mt_rand() is reseeded to prevent random values from one page load
    // being exploited to predict random values in subsequent page loads.
    $seed = unpack("L", Crypt::randomBytes(4));
    mt_srand($seed[1]);

444
    $this->booted = TRUE;
445
446

    return $this;
447
448
  }

449
  /**
450
   * {@inheritdoc}
451
   */
452
453
454
455
  public function shutdown() {
    if (FALSE === $this->booted) {
      return;
    }
456
    $this->container->get('stream_wrapper_manager')->unregister();
457
    $this->booted = FALSE;
458
    $this->container = NULL;
459
460
    $this->moduleList = NULL;
    $this->moduleData = array();
461
462
463
464
465
466
467
468
469
  }

  /**
   * {@inheritdoc}
   */
  public function getContainer() {
    return $this->container;
  }

470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
  /**
   * {@inheritdoc}
   */
  public function loadLegacyIncludes() {
    require_once $this->root . '/core/includes/common.inc';
    require_once $this->root . '/core/includes/database.inc';
    require_once $this->root . '/core/includes/module.inc';
    require_once $this->root . '/core/includes/theme.inc';
    require_once $this->root . '/core/includes/pager.inc';
    require_once $this->root . '/core/includes/menu.inc';
    require_once $this->root . '/core/includes/tablesort.inc';
    require_once $this->root . '/core/includes/file.inc';
    require_once $this->root . '/core/includes/unicode.inc';
    require_once $this->root . '/core/includes/form.inc';
    require_once $this->root . '/core/includes/errors.inc';
    require_once $this->root . '/core/includes/schema.inc';
    require_once $this->root . '/core/includes/entity.inc';
  }

489
  /**
490
   * {@inheritdoc}
491
   */
492
  public function preHandle(Request $request) {
493
494
495

    $this->loadLegacyIncludes();

496
497
498
    // Load all enabled modules.
    $this->container->get('module_handler')->loadAll();

499
500
501
    // Register stream wrappers.
    $this->container->get('stream_wrapper_manager')->register();

502
503
504
    // Initialize legacy request globals.
    $this->initializeRequestGlobals($request);

505
506
    // Put the request on the stack.
    $this->container->get('request_stack')->push($request);
507
508
509
510
511
512
513
514
515
516
517

    // Set the allowed protocols once we have the config available.
    $allowed_protocols = $this->container->get('config.factory')->get('system.filter')->get('protocols');
    if (!isset($allowed_protocols)) {
      // \Drupal\Component\Utility\UrlHelper::filterBadProtocol() is called by
      // the installer and update.php, in which case the configuration may not
      // exist (yet). Provide a minimal default set of allowed protocols for
      // these cases.
      $allowed_protocols = array('http', 'https');
    }
    UrlHelper::setAllowedProtocols($allowed_protocols);
518
519
520

    // Override of Symfony's mime type guesser singleton.
    MimeTypeGuesser::registerWithSymfonyGuesser($this->container);
521

522
    $this->prepared = TRUE;
523
524
  }

525
526
527
528
  /**
   * {@inheritdoc}
   */
  public function discoverServiceProviders() {
529
    $this->serviceYamls = array(
530
531
      'app' => array(),
      'site' => array(),
532
    );
533
534
535
536
537
538
    $this->serviceProviderClasses = array(
      'app' => array(),
      'site' => array(),
    );
    $this->serviceYamls['app']['core'] = 'core/core.services.yml';
    $this->serviceProviderClasses['app']['core'] = 'Drupal\Core\CoreServiceProvider';
539

540
    // Retrieve enabled modules and register their namespaces.
541
    if (!isset($this->moduleList)) {
542
543
      $extensions = $this->getConfigStorage()->read('core.extension');
      $this->moduleList = isset($extensions['module']) ? $extensions['module'] : array();
544
    }
545
    $module_filenames = $this->getModuleFileNames();
546
    $this->classLoaderAddMultiplePsr4($this->getModuleNamespacesPsr4($module_filenames));
547

548
    // Load each module's serviceProvider class.
549
    foreach ($module_filenames as $module => $filename) {
katbailey's avatar
katbailey committed
550
      $camelized = ContainerBuilder::camelize($module);
551
552
      $name = "{$camelized}ServiceProvider";
      $class = "Drupal\\{$module}\\{$name}";
553
      if (class_exists($class)) {
554
        $this->serviceProviderClasses['app'][$module] = $class;
555
      }
556
      $filename = dirname($filename) . "/$module.services.yml";
557
      if (file_exists($filename)) {
558
        $this->serviceYamls['app'][$module] = $filename;
559
      }
560
    }
561

562
    // Add site-specific service providers.
563
    if (!empty($GLOBALS['conf']['container_service_providers'])) {
564
565
566
567
      foreach ($GLOBALS['conf']['container_service_providers'] as $class) {
        if (class_exists($class)) {
          $this->serviceProviderClasses['site'][] = $class;
        }
568
569
      }
    }
570
571
    if (!$this->addServiceFiles(Settings::get('container_yamls'))) {
      throw new \Exception('The container_yamls setting is missing from settings.php');
572
    }
573
574
575
576
577
  }

  /**
   * {@inheritdoc}
   */
578
579
  public function getServiceProviders($origin) {
    return $this->serviceProviders[$origin];
580
581
582
583
584
585
  }

  /**
   * {@inheritdoc}
   */
  public function terminate(Request $request, Response $response) {
586
587
588
    // Only run terminate() when essential services have been set up properly
    // by preHandle() before.
    if (FALSE === $this->prepared) {
589
590
591
592
593
594
595
596
597
598
599
      return;
    }

    if ($this->getHttpKernel() instanceof TerminableInterface) {
      $this->getHttpKernel()->terminate($request, $response);
    }
  }

  /**
   * {@inheritdoc}
   */
600
601
  public function handle(Request $request, $type = self::MASTER_REQUEST, $catch = TRUE) {
    $this->boot();
602
    return $this->getHttpKernel()->handle($request, $type, $catch);
603
604
  }

605
606
607
608
609
610
  /**
   * {@inheritdoc}
   */
  public function prepareLegacyRequest(Request $request) {
    $this->boot();
    $this->preHandle($request);
611
612
613
614
615
    // Setup services which are normally initialized from within stack
    // middleware or during the request kernel event.
    if (PHP_SAPI !== 'cli') {
      $request->setSession($this->container->get('session'));
    }
616
617
    $request->attributes->set(RouteObjectInterface::ROUTE_OBJECT, new Route('<none>'));
    $request->attributes->set(RouteObjectInterface::ROUTE_NAME, '<none>');
618
619
620
621
622
    $this->container->get('request_stack')->push($request);
    $this->container->get('router.request_context')->fromRequest($request);
    return $this;
  }

623
624
625
626
627
628
  /**
   * Returns module data on the filesystem.
   *
   * @param $module
   *   The name of the module.
   *
629
630
   * @return \Drupal\Core\Extension\Extension|bool
   *   Returns an Extension object if the module is found, FALSE otherwise.
631
632
633
   */
  protected function moduleData($module) {
    if (!$this->moduleData) {
634
      // First, find profiles.
635
      $listing = new ExtensionDiscovery($this->root);
636
637
638
639
      $listing->setProfileDirectories(array());
      $all_profiles = $listing->scan('profile');
      $profiles = array_intersect_key($all_profiles, $this->moduleList);

640
641
      // If a module is within a profile directory but specifies another
      // profile for testing, it needs to be found in the parent profile.
642
      $settings = $this->getConfigStorage()->read('simpletest.settings');
643
644
      $parent_profile = !empty($settings['parent_profile']) ? $settings['parent_profile'] : NULL;
      if ($parent_profile && !isset($profiles[$parent_profile])) {
645
646
        // In case both profile directories contain the same extension, the
        // actual profile always has precedence.
647
        $profiles = array($parent_profile => $all_profiles[$parent_profile]) + $profiles;
648
      }
649
650
651
652
653
654

      $profile_directories = array_map(function ($profile) {
        return $profile->getPath();
      }, $profiles);
      $listing->setProfileDirectories($profile_directories);

655
      // Now find modules.
656
      $this->moduleData = $profiles + $listing->scan('module');
657
658
659
660
    }
    return isset($this->moduleData[$module]) ? $this->moduleData[$module] : FALSE;
  }

661
662
  /**
   * Implements Drupal\Core\DrupalKernelInterface::updateModules().
663
664
665
   *
   * @todo Remove obsolete $module_list parameter. Only $module_filenames is
   *   needed.
666
   */
667
  public function updateModules(array $module_list, array $module_filenames = array()) {
668
    $this->moduleList = $module_list;
669
670
    foreach ($module_filenames as $name => $extension) {
      $this->moduleData[$name] = $extension;
671
    }
672

673
674
    // If we haven't yet booted, we don't need to do anything: the new module
    // list will take effect when boot() is called. If we have already booted,
675
676
    // then rebuild the container in order to refresh the serviceProvider list
    // and container.
677
    if ($this->booted) {
678
      $this->initializeContainer(TRUE);
679
680
    }
  }
681

682
  /**
683
   * Returns the classname based on environment.
684
685
686
687
688
   *
   * @return string
   *   The class name.
   */
  protected function getClassName() {
689
    $parts = array('service_container', $this->environment);
690
691
692
    return implode('_', $parts);
  }

693
694
695
696
697
698
699
700
701
  /**
   * Returns the container class namespace based on the environment.
   *
   * @return string
   *   The class name.
   */
  protected function getClassNamespace() {
    return 'Drupal\\Core\\DependencyInjection\\Container\\' . $this->environment;
  }
702
703
704
705
706
707
708
709
710
711
712
713

  /**
   * Returns the kernel parameters.
   *
   * @return array An array of kernel parameters
   */
  protected function getKernelParameters() {
    return array(
      'kernel.environment' => $this->environment,
    );
  }

714
715
  /**
   * Initializes the service container.
716
717
718
719
   *
   * @param bool $rebuild
   *   Force a container rebuild.
   * @return \Symfony\Component\DependencyInjection\ContainerInterface
720
   */
721
  protected function initializeContainer($rebuild = FALSE) {
722
    $this->containerNeedsDumping = FALSE;
723
    $session_manager_started = FALSE;
724
    if (isset($this->container)) {
725
726
727
728
729
      // Save the id of the currently logged in user.
      if ($this->container->initialized('current_user')) {
        $current_user_id = $this->container->get('current_user')->id();
      }

730
731
732
733
      // If there is a session manager, close and save the session.
      if ($this->container->initialized('session_manager')) {
        $session_manager = $this->container->get('session_manager');
        if ($session_manager->isStarted()) {
734
          $session_manager_started = TRUE;
735
          $session_manager->save();
736
737
738
        }
        unset($session_manager);
      }
739
    }
740

741
742
743
    // If the module list hasn't already been set in updateModules and we are
    // not forcing a rebuild, then try and load the container from the disk.
    if (empty($this->moduleList) && !$rebuild) {
744
      $fully_qualified_class_name = '\\' . $this->getClassNamespace() . '\\' . $this->getClassName();
745
746

      // First, try to load from storage.
747
748
      if (!class_exists($fully_qualified_class_name, FALSE)) {
        $this->storage()->load($this->getClassName() . '.php');
749
750
      }
      // If the load succeeded or the class already existed, use it.
751
      if (class_exists($fully_qualified_class_name, FALSE)) {
752
        $container = new $fully_qualified_class_name;
753
754
      }
    }
755
756
757
758
759

    if (!isset($container)) {
      $container = $this->compileContainer();
    }

760
    $this->attachSynthetic($container);
761
762

    $this->container = $container;
763
    if ($session_manager_started) {
764
765
      $this->container->get('session_manager')->start();
    }
766
767
768
769
770
771
772
773
774
775

    // The request stack is preserved across container rebuilds. Reinject the
    // new session into the master request if one was present before.
    if (($request_stack = $this->container->get('request_stack', ContainerInterface::NULL_ON_INVALID_REFERENCE))) {
      if ($request = $request_stack->getMasterRequest()) {
        if ($request->hasSession()) {
          $request->setSession($this->container->get('session'));
        }
      }
    }
776
777
778
779
780

    if (!empty($current_user_id)) {
      $this->container->get('current_user')->setInitialAccountId($current_user_id);
    }

781
    \Drupal::setContainer($this->container);
782
783
784
785
786
787

    // If needs dumping flag was set, dump the container.
    if ($this->containerNeedsDumping && !$this->dumpDrupalContainer($this->container, static::CONTAINER_BASE_CLASS)) {
      $this->container->get('logger.factory')->get('DrupalKernel')->notice('Container cannot be written to disk');
    }

788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
    return $this->container;
  }

  /**
   * Setup a consistent PHP environment.
   *
   * This method sets PHP environment options we want to be sure are set
   * correctly for security or just saneness.
   */
  public static function bootEnvironment() {
    if (static::$isEnvironmentInitialized) {
      return;
    }

    // Enforce E_STRICT, but allow users to set levels not part of E_STRICT.
    error_reporting(E_STRICT | E_ALL);

    // Override PHP settings required for Drupal to work properly.
    // sites/default/default.settings.php contains more runtime settings.
    // The .htaccess file contains settings that cannot be changed at runtime.

    // Use session cookies, not transparent sessions that puts the session id in
    // the query string.
    ini_set('session.use_cookies', '1');
    ini_set('session.use_only_cookies', '1');
    ini_set('session.use_trans_sid', '0');
    // Don't send HTTP headers using PHP's session handler.
    // Send an empty string to disable the cache limiter.
    ini_set('session.cache_limiter', '');
    // Use httponly session cookies.
    ini_set('session.cookie_httponly', '1');

    // Set sane locale settings, to ensure consistent string, dates, times and
    // numbers handling.
    setlocale(LC_ALL, 'C');

    // Detect string handling method.
    Unicode::check();

    // Indicate that code is operating in a test child site.
    if (!defined('DRUPAL_TEST_IN_CHILD_SITE')) {
      if ($test_prefix = drupal_valid_test_ua()) {
        // Only code that interfaces directly with tests should rely on this
        // constant; e.g., the error/exception handler conditionally adds further
        // error information into HTTP response headers that are consumed by
        // Simpletest's internal browser.
        define('DRUPAL_TEST_IN_CHILD_SITE', TRUE);

        // Log fatal errors to the test site directory.
        ini_set('log_errors', 1);
        ini_set('error_log', DRUPAL_ROOT . '/sites/simpletest/' . substr($test_prefix, 10) . '/error.log');
      }
      else {
        // Ensure that no other code defines this.
        define('DRUPAL_TEST_IN_CHILD_SITE', FALSE);
      }
    }

    // Set the Drupal custom error handler.
    set_error_handler('_drupal_error_handler');
    set_exception_handler('_drupal_exception_handler');

    static::$isEnvironmentInitialized = TRUE;
  }

  /**
   * Bootstraps the legacy global request variables.
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   The current request.
   *
   * @todo D8: Eliminate this entirely in favor of Request object.
   */
  protected function initializeRequestGlobals(Request $request) {
    // Provided by settings.php.
    global $base_url;
    // Set and derived from $base_url by this function.
865
    global $base_path, $base_root;
866
867
868
869
870
871
872
873
874
875
876
877
    global $base_secure_url, $base_insecure_url;

    // @todo Refactor with the Symfony Request object.
    if (isset($base_url)) {
      // Parse fixed base URL from settings.php.
      $parts = parse_url($base_url);
      if (!isset($parts['path'])) {
        $parts['path'] = '';
      }
      $base_path = $parts['path'] . '/';
      // Build $base_root (everything until first slash after "scheme://").
      $base_root = substr($base_url, 0, strlen($base_url) - strlen($parts['path']));
878
    }
879
    else {
880
      // Create base URL.
881
      $base_root = $request->getSchemeAndHttpHost();
882
883
884
885
886
887

      $base_url = $base_root;

      // For a request URI of '/index.php/foo', $_SERVER['SCRIPT_NAME'] is
      // '/index.php', whereas $_SERVER['PHP_SELF'] is '/index.php/foo'.
      if ($dir = rtrim(dirname($request->server->get('SCRIPT_NAME')), '\/')) {
888
889
        // Remove "core" directory if present, allowing install.php,
        // authorize.php, and others to auto-detect a base path.
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
        $core_position = strrpos($dir, '/core');
        if ($core_position !== FALSE && strlen($dir) - 5 == $core_position) {
          $base_path = substr($dir, 0, $core_position);
        }
        else {
          $base_path = $dir;
        }
        $base_url .= $base_path;
        $base_path .= '/';
      }
      else {
        $base_path = '/';
      }
    }
    $base_secure_url = str_replace('http://', 'https://', $base_url);
    $base_insecure_url = str_replace('https://', 'http://', $base_url);
  }
907

908
909
910
  /**
   * Returns service instances to persist from an old container to a new one.
   */
911
  protected function getServicesToPersist(ContainerInterface $container) {
912
    $persist = array();
913
914
915
916
    foreach ($container->getParameter('persistIds') as $id) {
      // It's pointless to persist services not yet initialized.
      if ($container->initialized($id)) {
        $persist[$id] = $container->get($id);
917
918
919
920
921
922
923
924
      }
    }
    return $persist;
  }

  /**
   * Moves persistent service instances into a new container.
   */
925
  protected function persistServices(ContainerInterface $container, array $persist) {
926
927
928
    foreach ($persist as $id => $object) {
      // Do not override services already set() on the new container, for
      // example 'service_container'.
929
930
      if (!$container->initialized($id)) {
        $container->set($id, $object);
931
932
933
934
      }
    }
  }

935
  /**
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
   * Force a container rebuild.
   *
   * @return \Symfony\Component\DependencyInjection\ContainerInterface
   */
  public function rebuildContainer() {
    // Empty module properties and for them to be reloaded from scratch.
    $this->moduleList = NULL;
    $this->moduleData = array();
    return $this->initializeContainer(TRUE);
  }

  /**
   * Attach synthetic values on to kernel.
   *
   * @param ContainerInterface $container
   *   Container object
952
   *
953
954
   * @return ContainerInterface
   */
955
  protected function attachSynthetic(ContainerInterface $container) {
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
    $persist = array();
    if (isset($this->container)) {
      $persist = $this->getServicesToPersist($this->container);
    }
    $this->persistServices($container, $persist);

    // All namespaces must be registered before we attempt to use any service
    // from the container.
    $this->classLoaderAddMultiplePsr4($container->getParameter('container.namespaces'));

    $container->set('kernel', $this);

    // Set the class loader which was registered as a synthetic service.
    $container->set('class_loader', $this->classLoader);
    return $container;
  }

  /**
   * Compiles a new service container.
975
976
977
   *
   * @return ContainerBuilder The compiled service container
   */
978
979
980
981
982
983
984
985
  protected function compileContainer() {
    // We are forcing a container build so it is reasonable to assume that the
    // calling method knows something about the system has changed requiring the
    // container to be dumped to the filesystem.
    if ($this->allowDumping) {
      $this->containerNeedsDumping = TRUE;
    }

986
    $this->initializeServiceProviders();
987
    $container = $this->getContainerBuilder();
988
    $container->set('kernel', $this);
989
    $container->setParameter('container.modules', $this->getModulesParameter());
990
991

    // Get a list of namespaces and put it onto the container.
992
    $namespaces = $this->getModuleNamespacesPsr4($this->getModuleFileNames());
993
994
995
996
997
    // Add all components in \Drupal\Core and \Drupal\Component that have one of
    // the following directories:
    // - Element
    // - Entity
    // - Plugin
998
    foreach (array('Core', 'Component') as $parent_directory) {
999
      $path = 'core/lib/Drupal/' . $parent_directory;
1000
      $parent_namespace = 'Drupal\\' . $parent_directory;
1001
      foreach (new \DirectoryIterator($this->root . '/' . $path) as $component) {
1002
1003
1004
1005
1006
1007
1008
        /** @var $component \DirectoryIterator */
        $pathname = $component->getPathname();
        if (!$component->isDot() && $component->isDir() && (
          is_dir($pathname . '/Plugin') ||
          is_dir($pathname . '/Entity') ||
          is_dir($pathname . '/Element')
        )) {
1009
          $namespaces[$parent_namespace . '\\' . $component->getFilename()] = $path . '/' . $component->getFilename();
1010
1011
1012
        }
      }
    }
1013
1014
    $container->setParameter('container.namespaces', $namespaces);

1015
1016
1017
1018
1019
1020
    // Store the default language values on the container. This is so that the
    // default language can be configured using the configuration factory. This
    // avoids the circular dependencies that would created by
    // \Drupal\language\LanguageServiceProvider::alter() and allows the default
    // language to not be English in the installer.
    $default_language_values = Language::$defaultValues;
1021
1022
    if ($system = $this->getConfigStorage()->read('system.site')) {
      if ($default_language_values['id'] != $system['langcode']) {
1023
        $default_language_values = array('id' => $system['langcode']);
1024
      }
1025
1026
1027
    }
    $container->setParameter('language.default_values', $default_language_values);

1028
    // Register synthetic services.
1029
    $container->register('class_loader')->setSynthetic(TRUE);
1030
1031
    $container->register('kernel', 'Symfony\Component\HttpKernel\KernelInterface')->setSynthetic(TRUE);
    $container->register('service_container', 'Symfony\Component\DependencyInjection\ContainerInterface')->setSynthetic(TRUE);
1032
1033

    // Register application services.
1034
    $yaml_loader = new YamlFileLoader($container);
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
    foreach ($this->serviceYamls['app'] as $filename) {
      $yaml_loader->load($filename);
    }
    foreach ($this->serviceProviders['app'] as $provider) {
      if ($provider instanceof ServiceProviderInterface) {
        $provider->register($container);
      }
    }
    // Register site-specific service overrides.
    foreach ($this->serviceYamls['site'] as $filename) {
1045
1046
      $yaml_loader->load($filename);
    }
1047
    foreach ($this->serviceProviders['site'] as $provider) {
1048
1049
1050
      if ($provider instanceof ServiceProviderInterface) {
        $provider->register($container);
      }
1051
    }
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064

    // Identify all services whose instances should be persisted when rebuilding
    // the container during the lifetime of the kernel (e.g., during a kernel
    // reboot). Include synthetic services, because by definition, they cannot
    // be automatically reinstantiated. Also include services tagged to persist.
    $persist_ids = array();
    foreach ($container->getDefinitions() as $id => $definition) {
      if ($definition->isSynthetic() || $definition->getTag('persist')) {
        $persist_ids[] = $id;
      }
    }
    $container->setParameter('persistIds', $persist_ids);

1065
    $container->compile();
1066
1067
    return $container;
  }
1068

1069
1070
1071
1072
1073
1074
  /**
   * Registers all service providers to the kernel.
   *
   * @throws \LogicException
   */
  protected function initializeServiceProviders() {
1075
1076
1077
1078
1079
1080
1081
1082
    $this->discoverServiceProviders();
    $this->serviceProviders = array(
      'app' => array(),
      'site' => array(),
    );
    foreach ($this->serviceProviderClasses as $origin => $classes) {
      foreach ($classes as $name => $class) {
        $this->serviceProviders[$origin][$name] = new $class;
1083
1084
1085
1086
      }
    }
  }

1087
1088
1089
1090
1091
  /**
   * Gets a new ContainerBuilder instance used to build the service container.
   *
   * @return ContainerBuilder
   */
1092
  protected function getContainerBuilder() {
1093
1094
1095
    return new ContainerBuilder(new ParameterBag($this->getKernelParameters()));
  }

1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
  /**
   * Dumps the service container to PHP code in the config directory.
   *
   * This method is based on the dumpContainer method in the parent class, but
   * that method is reliant on the Config component which we do not use here.
   *
   * @param ContainerBuilder $container
   *   The service container.
   * @param string $baseClass
   *   The name of the container's base class
   *
   * @return bool
   *   TRUE if the container was successfully dumped to disk.
   */
  protected function dumpDrupalContainer(ContainerBuilder $container, $baseClass) {
1111
    if (!$this->storage()->writeable()) {
1112
1113
1114
1115
      return FALSE;
    }
    // Cache the container.
    $dumper = new PhpDumper($container);
1116
    $dumper->setProxyDumper(new ProxyDumper(new ProxyBuilder()));
1117
    $class = $this->getClassName();
1118
1119
1120
1121
1122
1123
    $namespace = $this->getClassNamespace();
    $content = $dumper->dump([
      'class' => $class,
      'base_class' => $baseClass,
      'namespace' => $namespace,
    ]);
1124
    return $this->storage()->save($class . '.php', $content);
1125
1126
  }

1127
1128
1129
1130

  /**
   * Gets a http kernel from the container
   *
1131
   * @return \Symfony\Component\HttpKernel\HttpKernelInterface
1132
1133
1134
1135
1136
   */
  protected function getHttpKernel() {
    return $this->container->get('http_kernel');
  }

1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
  /**
   * Gets the PHP code storage object to use for the compiled container.
   *
   * @return \Drupal\Component\PhpStorage\PhpStorageInterface
   */
  protected function storage() {
    if (!isset($this->storage)) {
      $this->storage = PhpStorageFactory::get('service_container');
    }
    return $this->storage;
  }

1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
  /**
   * Returns the active configuration storage to use during building the container.
   *
   * @return \Drupal\Core\Config\StorageInterface
   */
  protected function getConfigStorage() {
    if (!isset($this->configStorage)) {
      // The active configuration storage may not exist yet; e.g., in the early
      // installer. Catch the exception thrown by config_get_config_directory().
      try {
1159
        $this->configStorage = BootstrapConfigStorageFactory::get($this->classLoader);
1160
1161
1162
1163
1164
1165
1166
1167
      }
      catch (\Exception $e) {
        $this->configStorage = new NullStorage();
      }
    }
    return $this->configStorage;
  }

1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
  /**
   * Returns an array of Extension class parameters for all enabled modules.
   *
   * @return array
   */
  protected function getModulesParameter() {
    $extensions = array();
    foreach ($this->moduleList as $name => $weight) {
      if ($data = $this->moduleData($name)) {
        $extensions[$name] = array(
          'type' => $data->getType(),
          'pathname' => $data->getPathname(),
          'filename' => $data->getExtensionFilename(),
        );
      }
    }
    return $extensions;
  }

1187
  /**
1188
1189
1190
1191
1192
   * Gets the file name for each enabled module.
   *
   * @return array
   *   Array where each key is a module name, and each value is a path to the
   *   respective *.module or *.profile file.
1193
1194
1195
1196
1197
   */
  protected function getModuleFileNames() {
    $filenames = array();
    foreach ($this->moduleList as $module => $weight) {
      if ($data = $this->moduleData($module)) {
1198
        $filenames[$module] = $data->getPathname();
1199
1200
1201
1202
1203
      }
    }
    return $filenames;
  }

1204
1205
1206
  /**
   * Gets the PSR-4 base directories for module namespaces.
   *
1207
   * @param string[] $module_file_names
1208
1209
1210
   *   Array where each key is a module name, and each value is a path to the
   *   respective *.module or *.profile file.
   *
1211
   * @return string[]
1212
   *   Array where each key is a module namespace like 'Drupal\system', and each
1213
   *   value is the PSR-4 base directory associated with the module namespace.
1214
1215
1216
1217
   */
  protected function getModuleNamespacesPsr4($module_file_names) {
    $namespaces = array();
    foreach ($module_file_names as $module => $filename) {
1218
      $namespaces["Drupal\\$module"] = dirname($filename) . '/src';
1219
1220
1221
1222
    }
    return $namespaces;
  }

1223
1224
1225
1226
1227
1228
1229
1230
  /**
   * Registers a list of namespaces with PSR-4 directories for class loading.
   *
   * @param array $namespaces
   *   Array where each key is a namespace like 'Drupal\system', and each value
   *   is either a PSR-4 base directory, or an array of PSR-4 base directories
   *   associated with this namespace.
   */
1231
  protected function classLoaderAddMultiplePsr4(array $namespaces = array()) {
1232
    foreach ($namespaces as $prefix => $paths) {
1233
1234
1235
1236
1237
1238
1239
1240
      if (is_array($paths)) {
        foreach ($paths as $key => $value) {
          $paths[$key] = $this->root . '/' . $value;
        }
      }
      elseif (is_string($paths)) {
        $paths = $this->root . '/' . $paths;
      }
1241
1242
1243
1244
      $this->classLoader->addPsr4($prefix . '\\', $paths);
    }
  }

1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
  /**
   * Validates a hostname length.
   *
   * @param string $host
   *   A hostname.
   *
   * @return bool
   *   TRUE if the length is appropriate, or FALSE otherwise.
   */
  protected static function validateHostnameLength($host) {
    // Limit the length of the host name to 1000 bytes to prevent DoS attacks
    // with long host names.
    return strlen($host) <= 1000
    // Limit the number of subdomains and port separators to prevent DoS attacks
    // in findSitePath().
    && substr_count($host, '.') <= 100
    && substr_count($host, ':') <= 100;
  }

  /**
   * Validates the hostname supplied from the HTTP request.
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   The request object
   *
   * @return bool
   *   TRUE if the hostmame is valid, or FALSE otherwise.
   *
   * @todo Adjust per resolution to https://github.com/symfony/symfony/issues/12349
   */
  public static function validateHostname(Request $request) {
    // $request->getHost() can throw an UnexpectedValueException if it
    // detects a bad hostname, but it does not validate the length.
    try {
      $http_host = $request->getHost();
    }
    catch (\UnexpectedValueException $e) {
      return FALSE;
    }

    if (static::validateHostnameLength($http_host) === FALSE) {
      return FALSE;
    }

    return TRUE;
  }

1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
  /**
   * Sets up the lists of trusted HTTP Host headers.
   *
   * Since the HTTP Host header can be set by the user making the request, it
   * is possible to create an attack vectors against a site by overriding this.
   * Symfony provides a mechanism for creating a list of trusted Host values.
   *
   * Host patterns (as regular expressions) can be configured throught
   * settings.php for multisite installations, sites using ServerAlias without
   * canonical redirection, or configurations where the site responds to default
   * requests. For example,
   *
   * @code
   * $settings['trusted_host_patterns'] = array(
   *   '^example\.com$',
   *   '^*.example\.com$',
   * );
   * @endcode
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   The request object.
1313
   * @param array $host_patterns
1314
1315
1316
1317
1318
1319
   *   The array of trusted host patterns.
   *
   * @return boolean
   *   TRUE if the Host header is trusted, FALSE otherwise.
   *
   * @see https://www.drupal.org/node/1992030
1320
   * @see \Drupal\Core\Http\TrustedHostsRequestFactory
1321
   */
1322
1323
  protected static function setupTrustedHosts(Request $request, $host_patterns) {
    $request->setTrustedHosts($host_patterns);
1324
1325
1326

    // Get the host, which will validate the current request.
    try {
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
      $host = $request->getHost();

      // Fake requests created through Request::create() without passing in the
      // server variables from the main request have a default host of
      // 'localhost'. If 'localhost' does not match any of the trusted host
      // patterns these fake requests would fail the host verification. Instead,
      // TrustedHostsRequestFactory makes sure to pass in the server variables
      // from the main request.
      $request_factory = new TrustedHostsRequestFactory($host);
      Request::setFactory([$request_factory, 'createRequest']);

1338
1339
1340
1341
1342
1343
1344
    }
    catch (\UnexpectedValueException $e) {
      return FALSE;
    }

    return TRUE;
  }
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361

  /**
   * Add service files.
   *
   * @param $service_yamls
   *   A list of service files.
   *
   * @return bool
   *   TRUE if the list was an array, FALSE otherwise.
   */
  protected function addServiceFiles($service_yamls) {
    if (is_array($service_yamls)) {
      $this->serviceYamls['site'] = array_filter($service_yamls, 'file_exists');
      return TRUE;
    }
    return FALSE;
  }
1362
}