system.install 87.9 KB
Newer Older
1
<?php
2

3 4 5 6
/**
 * @file
 * Install, update and uninstall functions for the system module.
 */
7

8
use Drupal\Component\Utility\Crypt;
9
use Drupal\Component\Utility\Environment;
10
use Drupal\Component\FileSystem\FileSystem;
11
use Drupal\Component\Utility\OpCodeCache;
12
use Drupal\Component\Utility\Unicode;
13
use Drupal\Core\Cache\Cache;
14
use Drupal\Core\Path\AliasStorage;
15
use Drupal\Core\Url;
16
use Drupal\Core\Database\Database;
17 18 19
use Drupal\Core\Entity\ContentEntityTypeInterface;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Entity\FieldableEntityInterface;
20
use Drupal\Core\DrupalKernel;
21
use Drupal\Core\Field\BaseFieldDefinition;
22
use Drupal\Core\Site\Settings;
23
use Drupal\Core\StreamWrapper\PrivateStream;
24
use Drupal\Core\StreamWrapper\PublicStream;
25
use Drupal\system\SystemRequirements;
26
use Symfony\Component\HttpFoundation\Request;
27

28
/**
29
 * Implements hook_requirements().
30 31
 */
function system_requirements($phase) {
32
  global $install_state;
33
  $requirements = [];
34 35 36

  // Report Drupal version
  if ($phase == 'runtime') {
37
    $requirements['drupal'] = [
38
      'title' => t('Drupal'),
39
      'value' => \Drupal::VERSION,
Steven Wittens's avatar
Steven Wittens committed
40 41
      'severity' => REQUIREMENT_INFO,
      'weight' => -10,
42
    ];
43

44 45
    // Display the currently active installation profile, if the site
    // is not running the default installation profile.
46
    $profile = drupal_get_profile();
47
    if ($profile != 'standard') {
48
      $info = system_get_info('module', $profile);
49
      $requirements['install_profile'] = [
50
        'title' => t('Installation profile'),
51
        'value' => t('%profile_name (%profile-%version)', [
52 53
          '%profile_name' => $info['name'],
          '%profile' => $profile,
54
          '%version' => $info['version'],
55
        ]),
56
        'severity' => REQUIREMENT_INFO,
57
        'weight' => -9,
58
      ];
59
    }
60 61

    // Warn if any experimental modules are installed.
62
    $experimental = [];
63
    $enabled_modules = \Drupal::moduleHandler()->getModuleList();
64
    foreach ($enabled_modules as $module => $data) {
65
      $info = system_get_info('module', $module);
66
      if (isset($info['package']) && $info['package'] === 'Core (Experimental)') {
67
        $experimental[$module] = $info['name'];
68 69 70
      }
    }
    if (!empty($experimental)) {
71
      $requirements['experimental'] = [
72
        'title' => t('Experimental modules enabled'),
73
        'value' => t('Experimental modules found: %module_list. <a href=":url">Experimental modules</a> are provided for testing purposes only. Use at your own risk.', ['%module_list' => implode(', ', $experimental), ':url' => 'https://www.drupal.org/core/experimental']),
74
        'severity' => REQUIREMENT_WARNING,
75
      ];
76
    }
77 78
  }

79
  // Web server information.
80 81
  $request_object = \Drupal::request();
  $software = $request_object->server->get('SERVER_SOFTWARE');
82
  $requirements['webserver'] = [
83
    'title' => t('Web server'),
Steven Wittens's avatar
Steven Wittens committed
84
    'value' => $software,
85
  ];
86

87
  // Tests clean URL support.
88
  if ($phase == 'install' && $install_state['interactive'] && !$request_object->query->has('rewrite') && strpos($software, 'Apache') !== FALSE) {
89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
    // If the Apache rewrite module is not enabled, Apache version must be >=
    // 2.2.16 because of the FallbackResource directive in the root .htaccess
    // file. Since the Apache version reported by the server is dependent on the
    // ServerTokens setting in httpd.conf, we may not be able to determine if a
    // given config is valid. Thus we are unable to use version_compare() as we
    // need have three possible outcomes: the version of Apache is greater than
    // 2.2.16, is less than 2.2.16, or cannot be determined accurately. In the
    // first case, we encourage the use of mod_rewrite; in the second case, we
    // raise an error regarding the minimum Apache version; in the third case,
    // we raise a warning that the current version of Apache may not be
    // supported.
    $rewrite_warning = FALSE;
    $rewrite_error = FALSE;
    $apache_version_string = 'Apache';

    // Determine the Apache version number: major, minor and revision.
    if (preg_match('/Apache\/(\d+)\.?(\d+)?\.?(\d+)?/', $software, $matches)) {
      $apache_version_string = $matches[0];

      // Major version number
      if ($matches[1] < 2) {
        $rewrite_error = TRUE;
      }
112
      elseif ($matches[1] == 2) {
113 114 115
        if (!isset($matches[2])) {
          $rewrite_warning = TRUE;
        }
116
        elseif ($matches[2] < 2) {
117 118
          $rewrite_error = TRUE;
        }
119
        elseif ($matches[2] == 2) {
120 121 122
          if (!isset($matches[3])) {
            $rewrite_warning = TRUE;
          }
123
          elseif ($matches[3] < 16) {
124 125 126 127 128 129 130 131 132 133
            $rewrite_error = TRUE;
          }
        }
      }
    }
    else {
      $rewrite_warning = TRUE;
    }

    if ($rewrite_warning) {
134
      $requirements['apache_version'] = [
135 136 137
        'title' => t('Apache version'),
        'value' => $apache_version_string,
        'severity' => REQUIREMENT_WARNING,
138 139
        'description' => t('Due to the settings for ServerTokens in httpd.conf, it is impossible to accurately determine the version of Apache running on this server. The reported value is @reported, to run Drupal without mod_rewrite, a minimum version of 2.2.16 is needed.', ['@reported' => $apache_version_string]),
      ];
140 141 142
    }

    if ($rewrite_error) {
143
      $requirements['Apache version'] = [
144 145 146
        'title' => t('Apache version'),
        'value' => $apache_version_string,
        'severity' => REQUIREMENT_ERROR,
147 148
        'description' => t('The minimum version of Apache needed to run Drupal without mod_rewrite enabled is 2.2.16. See the <a href=":link">enabling clean URLs</a> page for more information on mod_rewrite.', [':link' => 'http://drupal.org/node/15365']),
      ];
149 150 151
    }

    if (!$rewrite_error && !$rewrite_warning) {
152
      $requirements['rewrite_module'] = [
153 154 155
        'title' => t('Clean URLs'),
        'value' => t('Disabled'),
        'severity' => REQUIREMENT_WARNING,
156 157
        'description' => t('Your server is capable of using clean URLs, but it is not enabled. Using clean URLs gives an improved user experience and is recommended. <a href=":link">Enable clean URLs</a>', [':link' => 'http://drupal.org/node/15365']),
      ];
158 159 160
    }
  }

161 162 163 164 165
  // Verify the user is running a supported PHP version.
  // If the site is running a recommended version of PHP, just display it
  // as an informational message on the status report. This will be overridden
  // with an error or warning if the site is running older PHP versions for
  // which Drupal has already or will soon drop support.
166
  $phpversion = $phpversion_label = phpversion();
167
  if (function_exists('phpinfo')) {
168
    if ($phase === 'runtime') {
169
      $phpversion_label = t('@phpversion (<a href=":url">more information</a>)', ['@phpversion' => $phpversion, ':url' => (new Url('system.php'))->toString()]);
170
    }
171
    $requirements['php'] = [
172
      'title' => t('PHP'),
173
      'value' => $phpversion_label,
174
    ];
175 176
  }
  else {
177 178
    // @todo Revisit whether this description makes sense in
    //   https://www.drupal.org/project/drupal/issues/2927318.
179
    $requirements['php'] = [
180
      'title' => t('PHP'),
181
      'value' => $phpversion_label,
182
      'description' => t('The phpinfo() function has been disabled for security reasons. To see your server\'s phpinfo() information, change your PHP settings or contact your server administrator. For more information, <a href=":phpinfo">Enabling and disabling phpinfo()</a> handbook page.', [':phpinfo' => 'https://www.drupal.org/node/243993']),
183
      'severity' => REQUIREMENT_INFO,
184
    ];
185 186
  }

187
  if (version_compare($phpversion, DRUPAL_MINIMUM_PHP) < 0) {
188
    $requirements['php']['description'] = t('Your PHP installation is too old. Drupal requires at least PHP %version.', ['%version' => DRUPAL_MINIMUM_PHP]);
189
    $requirements['php']['severity'] = REQUIREMENT_ERROR;
190 191
    // If PHP is old, it's not safe to continue with the requirements check.
    return $requirements;
192
  }
193
  if ((version_compare($phpversion, DRUPAL_RECOMMENDED_PHP) < 0) && ($phase === 'install' || $phase === 'runtime')) {
194
    // Warn if still on PHP 5. If at least PHP 7.0, relax from "warning" to
195 196 197 198 199 200 201 202 203 204 205
    // "info", and show it at runtime only, to not scare users while installing.
    if (version_compare($phpversion, '7.0') < 0) {
      $requirements['php']['description'] = t('Drupal will drop support for this version on March 6, 2019. Upgrade to PHP version %recommended or higher to ensure your site can receive updates and remain secure. See <a href="http://php.net/supported-versions.php">PHP\'s version support documentation</a> and the <a href=":php_requirements">Drupal 8 PHP requirements handbook page</a> for more information.', ['%recommended' => DRUPAL_RECOMMENDED_PHP, ':php_requirements' => 'https://www.drupal.org/docs/8/system-requirements/php']);
      $requirements['php']['severity'] = REQUIREMENT_WARNING;
    }
    else {
      if ($phase === 'runtime') {
        $requirements['php']['description'] = t('It is recommended to upgrade to PHP version %recommended or higher for the best ongoing support.  See <a href="http://php.net/supported-versions.php">PHP\'s version support documentation</a> and the <a href=":php_requirements">Drupal 8 PHP requirements handbook page</a> for more information.', ['%recommended' => DRUPAL_RECOMMENDED_PHP, ':php_requirements' => 'https://www.drupal.org/docs/8/system-requirements/php']);
        $requirements['php']['severity'] = REQUIREMENT_INFO;
      }
    }
206
  }
207

208 209 210
  // Suggest to update to at least 5.5.21 or 5.6.5 for disabling multiple
  // statements.
  if (($phase === 'install' || \Drupal::database()->driver() === 'mysql') && !SystemRequirements::phpVersionWithPdoDisallowMultipleStatements($phpversion)) {
211
    $requirements['php_multiple_statement'] = [
212
      'title' => t('PHP (multiple statement disabling)'),
213
      'value' => $phpversion_label,
214 215
      'description' => t('PHP versions higher than 5.6.5 or 5.5.21 provide built-in SQL injection protection for mysql databases. It is recommended to update.'),
      'severity' => REQUIREMENT_INFO,
216
    ];
217 218
  }

219
  // Test for PHP extensions.
220
  $requirements['php_extensions'] = [
221
    'title' => t('PHP extensions'),
222
  ];
223

224 225
  $missing_extensions = [];
  $required_extensions = [
226 227 228 229 230 231 232 233 234 235 236
    'date',
    'dom',
    'filter',
    'gd',
    'hash',
    'json',
    'pcre',
    'pdo',
    'session',
    'SimpleXML',
    'SPL',
237
    'tokenizer',
238
    'xml',
239
  ];
240 241 242 243 244 245 246
  foreach ($required_extensions as $extension) {
    if (!extension_loaded($extension)) {
      $missing_extensions[] = $extension;
    }
  }

  if (!empty($missing_extensions)) {
247
    $description = t('Drupal requires you to enable the PHP extensions in the following list (see the <a href=":system_requirements">system requirements page</a> for more information):', [
248
      ':system_requirements' => 'https://www.drupal.org/requirements',
249
    ]);
250

251
    // We use twig inline_template to avoid twig's autoescape.
252
    $description = [
253 254
      '#type' => 'inline_template',
      '#template' => '{{ description }}{{ missing_extensions }}',
255
      '#context' => [
256
        'description' => $description,
257
        'missing_extensions' => [
258 259
          '#theme' => 'item_list',
          '#items' => $missing_extensions,
260 261 262
        ],
      ],
    ];
263

264
    $requirements['php_extensions']['value'] = t('Disabled');
265 266
    $requirements['php_extensions']['severity'] = REQUIREMENT_ERROR;
    $requirements['php_extensions']['description'] = $description;
267 268
  }
  else {
269
    $requirements['php_extensions']['value'] = t('Enabled');
270 271 272 273
  }

  if ($phase == 'install' || $phase == 'runtime') {
    // Check to see if OPcache is installed.
274
    if (!OpCodeCache::isEnabled()) {
275
      $requirements['php_opcache'] = [
276 277
        'value' => t('Not enabled'),
        'severity' => REQUIREMENT_WARNING,
278
        'description' => t('PHP OPcode caching can improve your site\'s performance considerably. It is <strong>highly recommended</strong> to have <a href="http://php.net/manual/opcache.installation.php" target="_blank">OPcache</a> installed on your server.'),
279
      ];
280 281 282 283 284
    }
    else {
      $requirements['php_opcache']['value'] = t('Enabled');
    }
    $requirements['php_opcache']['title'] = t('PHP OPcode caching');
285
  }
286

287 288
  if ($phase != 'update') {
    // Test whether we have a good source of random bytes.
289
    $requirements['php_random_bytes'] = [
290
      'title' => t('Random number generation'),
291
    ];
292 293 294
    try {
      $bytes = random_bytes(10);
      if (strlen($bytes) != 10) {
295
        throw new \Exception(t('Tried to generate 10 random bytes, generated @count', ['@count' => strlen($bytes)]));
296 297 298 299 300 301 302 303 304 305 306
      }
      $requirements['php_random_bytes']['value'] = t('Successful');
    }
    catch (\Exception $e) {
      // If /dev/urandom is not available on a UNIX-like system, check whether
      // open_basedir restrictions are the cause.
      $open_basedir_blocks_urandom = FALSE;
      if (DIRECTORY_SEPARATOR === '/' && !@is_readable('/dev/urandom')) {
        $open_basedir = ini_get('open_basedir');
        if ($open_basedir) {
          $open_basedir_paths = explode(PATH_SEPARATOR, $open_basedir);
307
          $open_basedir_blocks_urandom = !array_intersect(['/dev', '/dev/', '/dev/urandom'], $open_basedir_paths);
308 309
        }
      }
310
      $args = [
311 312
        ':drupal-php' => 'https://www.drupal.org/docs/7/system-requirements/php#csprng',
        '%exception_message' => $e->getMessage(),
313
      ];
314 315 316 317 318 319 320 321 322 323 324
      if ($open_basedir_blocks_urandom) {
        $requirements['php_random_bytes']['description'] = t('Drupal is unable to generate highly randomized numbers, which means certain security features like password reset URLs are not as secure as they should be. Instead, only a slow, less-secure fallback generator is available. The most likely cause is that open_basedir restrictions are in effect and /dev/urandom is not on the whitelist. See the <a href=":drupal-php">system requirements</a> page for more information. %exception_message', $args);
      }
      else {
        $requirements['php_random_bytes']['description'] = t('Drupal is unable to generate highly randomized numbers, which means certain security features like password reset URLs are not as secure as they should be. Instead, only a slow, less-secure fallback generator is available. See the <a href=":drupal-php">system requirements</a> page for more information. %exception_message', $args);
      }
      $requirements['php_random_bytes']['value'] = t('Less secure');
      $requirements['php_random_bytes']['severity'] = REQUIREMENT_ERROR;
    }
  }

325 326
  if ($phase == 'install' || $phase == 'update') {
    // Test for PDO (database).
327
    $requirements['database_extensions'] = [
328
      'title' => t('Database support'),
329
    ];
330

331
    // Make sure PDO is available.
332
    $database_ok = extension_loaded('pdo');
333
    if (!$database_ok) {
334
      $pdo_message = t('Your web server does not appear to support PDO (PHP Data Objects). Ask your hosting provider if they support the native PDO extension. See the <a href=":link">system requirements</a> page for more information.', [
335
        ':link' => 'https://www.drupal.org/requirements/pdo',
336
      ]);
337 338 339
    }
    else {
      // Make sure at least one supported database driver exists.
340
      $drivers = drupal_detect_database_types();
341 342
      if (empty($drivers)) {
        $database_ok = FALSE;
343
        $pdo_message = t('Your web server does not appear to support any common PDO database extensions. Check with your hosting provider to see if they support PDO (PHP Data Objects) and offer any databases that <a href=":drupal-databases">Drupal supports</a>.', [
344
          ':drupal-databases' => 'https://www.drupal.org/requirements/database',
345
        ]);
346 347 348 349 350
      }
      // Make sure the native PDO extension is available, not the older PEAR
      // version. (See install_verify_pdo() for details.)
      if (!defined('PDO::ATTR_DEFAULT_FETCH_MODE')) {
        $database_ok = FALSE;
351
        $pdo_message = t('Your web server seems to have the wrong version of PDO installed. Drupal requires the PDO extension from PHP core. This system has the older PECL version. See the <a href=":link">system requirements</a> page for more information.', [
352
          ':link' => 'https://www.drupal.org/requirements/pdo#pecl',
353
        ]);
354
      }
355
    }
356

357
    if (!$database_ok) {
358
      $requirements['database_extensions']['value'] = t('Disabled');
359
      $requirements['database_extensions']['severity'] = REQUIREMENT_ERROR;
360
      $requirements['database_extensions']['description'] = $pdo_message;
361 362
    }
    else {
363
      $requirements['database_extensions']['value'] = t('Enabled');
364
    }
365
  }
366 367
  else {
    // Database information.
368
    $class = Database::getConnection()->getDriverClass('Install\\Tasks');
369
    $tasks = new $class();
370
    $requirements['database_system'] = [
371
      'title' => t('Database system'),
372
      'value' => $tasks->name(),
373 374
    ];
    $requirements['database_system_version'] = [
375
      'title' => t('Database system version'),
376
      'value' => Database::getConnection()->version(),
377
    ];
378
  }
379

380
  // Test PHP memory_limit
381
  $memory_limit = ini_get('memory_limit');
382
  $requirements['php_memory_limit'] = [
383
    'title' => t('PHP memory limit'),
384
    'value' => $memory_limit == -1 ? t('-1 (Unlimited)') : $memory_limit,
385
  ];
386

387
  if (!Environment::checkMemoryLimit(DRUPAL_MINIMUM_PHP_MEMORY_LIMIT, $memory_limit)) {
388
    $description = [];
389
    if ($phase == 'install') {
390
      $description['phase'] = t('Consider increasing your PHP memory limit to %memory_minimum_limit to help prevent errors in the installation process.', ['%memory_minimum_limit' => DRUPAL_MINIMUM_PHP_MEMORY_LIMIT]);
391 392
    }
    elseif ($phase == 'update') {
393
      $description['phase'] = t('Consider increasing your PHP memory limit to %memory_minimum_limit to help prevent errors in the update process.', ['%memory_minimum_limit' => DRUPAL_MINIMUM_PHP_MEMORY_LIMIT]);
394
    }
395
    elseif ($phase == 'runtime') {
396
      $description['phase'] = t('Depending on your configuration, Drupal can run with a %memory_limit PHP memory limit. However, a %memory_minimum_limit PHP memory limit or above is recommended, especially if your site uses additional custom or contributed modules.', ['%memory_limit' => $memory_limit, '%memory_minimum_limit' => DRUPAL_MINIMUM_PHP_MEMORY_LIMIT]);
397
    }
398

399
    if (!empty($description['phase'])) {
400
      if ($php_ini_path = get_cfg_var('cfg_file_path')) {
401
        $description['memory'] = t('Increase the memory limit by editing the memory_limit parameter in the file %configuration-file and then restart your web server (or contact your system administrator or hosting provider for assistance).', ['%configuration-file' => $php_ini_path]);
402 403
      }
      else {
404
        $description['memory'] = t('Contact your system administrator or hosting provider for assistance with increasing your PHP memory limit.');
405
      }
406

407
      $handbook_link = t('For more information, see the online handbook entry for <a href=":memory-limit">increasing the PHP memory limit</a>.', [':memory-limit' => 'https://www.drupal.org/node/207036']);
408

409
      $description = [
410 411
        '#type' => 'inline_template',
        '#template' => '{{ description_phase }} {{ description_memory }} {{ handbook }}',
412
        '#context' => [
413 414 415
          'description_phase' => $description['phase'],
          'description_memory' => $description['memory'],
          'handbook' => $handbook_link,
416 417
        ],
      ];
418 419

      $requirements['php_memory_limit']['description'] = $description;
420
      $requirements['php_memory_limit']['severity'] = REQUIREMENT_WARNING;
421
    }
422
  }
423

424
  // Test configuration files and directory for writability.
425
  if ($phase == 'runtime') {
426
    $conf_errors = [];
427 428 429 430 431 432 433 434
    // Find the site path. Kernel service is not always available at this point,
    // but is preferred, when available.
    if (\Drupal::hasService('kernel')) {
      $site_path = \Drupal::service('site.path');
    }
    else {
      $site_path = DrupalKernel::findSitePath(Request::createFromGlobals());
    }
435 436 437 438
    // Allow system administrators to disable permissions hardening for the site
    // directory. This allows additional files in the site directory to be
    // updated when they are managed in a version control system.
    if (Settings::get('skip_permissions_hardening')) {
439
      $error_value = t('Protection disabled');
440 441 442 443 444
      // If permissions hardening is disabled, then only show a warning for a
      // writable file, as a reminder, rather than an error.
      $file_protection_severity = REQUIREMENT_WARNING;
    }
    else {
445
      $error_value = t('Not protected');
446 447 448
      // In normal operation, writable files or directories are an error.
      $file_protection_severity = REQUIREMENT_ERROR;
      if (!drupal_verify_install_file($site_path, FILE_NOT_WRITABLE, 'dir')) {
449
        $conf_errors[] = t("The directory %file is not protected from modifications and poses a security risk. You must change the directory's permissions to be non-writable.", ['%file' => $site_path]);
450
      }
451
    }
452
    foreach (['settings.php', 'settings.local.php', 'services.yml'] as $conf_file) {
453
      $full_path = $site_path . '/' . $conf_file;
454
      if (file_exists($full_path) && !drupal_verify_install_file($full_path, FILE_EXIST | FILE_READABLE | FILE_NOT_WRITABLE, 'file', !Settings::get('skip_permissions_hardening'))) {
455
        $conf_errors[] = t("The file %file is not protected from modifications and poses a security risk. You must change the file's permissions to be non-writable.", ['%file' => $full_path]);
456 457 458 459 460 461 462
      }
    }
    if (!empty($conf_errors)) {
      if (count($conf_errors) == 1) {
        $description = $conf_errors[0];
      }
      else {
463
        // We use twig inline_template to avoid double escaping.
464
        $description = [
465 466
          '#type' => 'inline_template',
          '#template' => '{{ configuration_error_list }}',
467 468
          '#context' => [
            'configuration_error_list' => [
469 470
              '#theme' => 'item_list',
              '#items' => $conf_errors,
471 472 473
            ],
          ],
        ];
474
      }
475
      $requirements['configuration_files'] = [
476
        'value' => $error_value,
477
        'severity' => $file_protection_severity,
478
        'description' => $description,
479
      ];
480 481
    }
    else {
482
      $requirements['configuration_files'] = [
483
        'value' => t('Protected'),
484
      ];
485
    }
486
    $requirements['configuration_files']['title'] = t('Configuration files');
487 488
  }

489 490 491 492 493
  // Test the contents of the .htaccess files.
  if ($phase == 'runtime') {
    // Try to write the .htaccess files first, to prevent false alarms in case
    // (for example) the /tmp directory was wiped.
    file_ensure_htaccess();
494
    $file_system = \Drupal::service('file_system');
495
    $htaccess_files['public://.htaccess'] = [
496
      'title' => t('Public files directory'),
497
      'directory' => $file_system->realpath('public://'),
498
    ];
499
    if (PrivateStream::basePath()) {
500
      $htaccess_files['private://.htaccess'] = [
501
        'title' => t('Private files directory'),
502
        'directory' => $file_system->realpath('private://'),
503
      ];
504
    }
505
    $htaccess_files['temporary://.htaccess'] = [
506
      'title' => t('Temporary files directory'),
507
      'directory' => $file_system->realpath('temporary://'),
508
    ];
509 510 511 512
    foreach ($htaccess_files as $htaccess_file => $info) {
      // Check for the string which was added to the recommended .htaccess file
      // in the latest security update.
      if (!file_exists($htaccess_file) || !($contents = @file_get_contents($htaccess_file)) || strpos($contents, 'Drupal_Security_Do_Not_Remove_See_SA_2013_003') === FALSE) {
513
        $url = 'https://www.drupal.org/SA-CORE-2013-003';
514
        $requirements[$htaccess_file] = [
515 516 517
          'title' => $info['title'],
          'value' => t('Not fully protected'),
          'severity' => REQUIREMENT_ERROR,
518 519
          'description' => t('See <a href=":url">@url</a> for information about the recommended .htaccess file which should be added to the %directory directory to help protect against arbitrary code execution.', [':url' => $url, '@url' => $url, '%directory' => $info['directory']]),
        ];
520 521 522 523
      }
    }
  }

524
  // Report cron status.
525
  if ($phase == 'runtime') {
526
    $cron_config = \Drupal::config('system.cron');
527
    // Cron warning threshold defaults to two days.
528
    $threshold_warning = $cron_config->get('threshold.requirements_warning');
529
    // Cron error threshold defaults to two weeks.
530
    $threshold_error = $cron_config->get('threshold.requirements_error');
531

532
    // Determine when cron last ran.
533
    $cron_last = \Drupal::state()->get('system.cron_last');
534
    if (!is_numeric($cron_last)) {
535
      $cron_last = \Drupal::state()->get('install_time', 0);
536
    }
537

538
    // Determine severity based on time since cron last ran.
539
    $severity = REQUIREMENT_INFO;
540
    if (REQUEST_TIME - $cron_last > $threshold_error) {
541
      $severity = REQUIREMENT_ERROR;
542
    }
543
    elseif (REQUEST_TIME - $cron_last > $threshold_warning) {
544 545 546 547
      $severity = REQUIREMENT_WARNING;
    }

    // Set summary and description based on values determined above.
548
    $summary = t('Last run @time ago', ['@time' => \Drupal::service('date.formatter')->formatTimeDiffSince($cron_last)]);
549

550
    $requirements['cron'] = [
551
      'title' => t('Cron maintenance tasks'),
552 553
      'severity' => $severity,
      'value' => $summary,
554
    ];
555 556 557 558 559 560 561
    if ($severity != REQUIREMENT_INFO) {
      $requirements['cron']['description'][] = [
        [
          '#markup' => t('Cron has not run recently.'),
          '#suffix' => ' ',
        ],
        [
562
          '#markup' => t('For more information, see the online handbook entry for <a href=":cron-handbook">configuring cron jobs</a>.', [':cron-handbook' => 'https://www.drupal.org/cron']),
563 564 565 566 567 568
          '#suffix' => ' ',
        ],
      ];
    }
    $requirements['cron']['description'][] = [
      [
569 570 571 572 573
        '#type' => 'link',
        '#prefix' => '(',
        '#title' => t('more information'),
        '#suffix' => ')',
        '#url' => Url::fromRoute('system.cron_settings'),
574 575
      ],
      [
576 577 578 579 580
        '#prefix' => '<span class="cron-description__run-cron">',
        '#suffix' => '</span>',
        '#type' => 'link',
        '#title' => t('Run cron'),
        '#url' => Url::fromRoute('system.run_cron'),
581 582
      ],
    ];
583
  }
584
  if ($phase != 'install') {
585
    $filesystem_config = \Drupal::config('system.file');
586
    $directories = [
587
      PublicStream::basePath(),
588 589
      // By default no private files directory is configured. For private files
      // to be secure the admin needs to provide a path outside the webroot.
590
      PrivateStream::basePath(),
591
      file_directory_temp(),
592
    ];
593
  }
594

595 596
  // During an install we need to make assumptions about the file system
  // unless overrides are provided in settings.php.
597
  if ($phase == 'install') {
598
    $directories = [];
599
    if ($file_public_path = Settings::get('file_public_path')) {
600
      $directories[] = $file_public_path;
601 602 603
    }
    else {
      // If we are installing Drupal, the settings.php file might not exist yet
604
      // in the intended site directory, so don't require it.
605 606 607
      $request = Request::createFromGlobals();
      $site_path = DrupalKernel::findSitePath($request);
      $directories[] = $site_path . '/files';
608
    }
609 610
    if ($file_private_path = Settings::get('file_private_path')) {
      $directories[] = $file_private_path;
611
    }
612 613
    if (!empty($GLOBALS['config']['system.file']['path']['temporary'])) {
      $directories[] = $GLOBALS['config']['system.file']['path']['temporary'];
614 615 616 617
    }
    else {
      // If the temporary directory is not overridden use an appropriate
      // temporary path for the system.
618
      $directories[] = FileSystem::getOsTemporaryDirectory();
619
    }
620 621
  }

622 623 624
  // Check the config directory if it is defined in settings.php. If it isn't
  // defined, the installer will create a valid config directory later, but
  // during runtime we must always display an error.
625
  if (!empty($GLOBALS['config_directories'])) {
626 627
    foreach (array_keys(array_filter($GLOBALS['config_directories'])) as $type) {
      $directory = config_get_config_directory($type);
628 629 630 631
      // If we're installing Drupal try and create the config sync directory.
      if (!is_dir($directory) && $phase == 'install') {
        file_prepare_directory($directory, FILE_CREATE_DIRECTORY | FILE_MODIFY_PERMISSIONS);
      }
632
      if (!is_dir($directory)) {
633
        if ($phase == 'install') {
634
          $description = t('An automated attempt to create the directory %directory failed, possibly due to a permissions problem. To proceed with the installation, either create the directory and modify its permissions manually or ensure that the installer has the permissions to create it automatically. For more information, see INSTALL.txt or the <a href=":handbook_url">online handbook</a>.', ['%directory' => $directory, ':handbook_url' => 'https://www.drupal.org/server-permissions']);
635 636
        }
        else {
637
          $description = t('The directory %directory does not exist.', ['%directory' => $directory]);
638
        }
639
        $requirements['config directory ' . $type] = [
640
          'title' => t('Configuration directory: %type', ['%type' => $type]),
641
          'description' => $description,
642
          'severity' => REQUIREMENT_ERROR,
643
        ];
644
      }
645
    }
646
  }
647
  if ($phase != 'install' && (empty($GLOBALS['config_directories']) || empty($GLOBALS['config_directories'][CONFIG_SYNC_DIRECTORY]))) {
648
    $requirements['config directories'] = [
649 650
      'title' => t('Configuration directories'),
      'value' => t('Not present'),
651
      'description' => t('Your %file file must define the $config_directories variable as an array containing the names of directories in which configuration files can be found. It must contain a %sync_key key.', ['%file' => $site_path . '/settings.php', '%sync_key' => CONFIG_SYNC_DIRECTORY]),
652
      'severity' => REQUIREMENT_ERROR,
653
    ];
654 655
  }

656
  $requirements['file system'] = [
657
    'title' => t('File system'),
658
  ];
659

660 661 662
  $error = '';
  // For installer, create the directories if possible.
  foreach ($directories as $directory) {
663 664 665
    if (!$directory) {
      continue;
    }
666
    if ($phase == 'install') {
667
      file_prepare_directory($directory, FILE_CREATE_DIRECTORY | FILE_MODIFY_PERMISSIONS);
668
    }
669 670 671 672
    $is_writable = is_writable($directory);
    $is_directory = is_dir($directory);
    if (!$is_writable || !$is_directory) {
      $description = '';
673
      $requirements['file system']['value'] = t('Not writable');
674
      if (!$is_directory) {
675
        $error = t('The directory %directory does not exist.', ['%directory' => $directory]);
676 677
      }
      else {
678
        $error = t('The directory %directory is not writable.', ['%directory' => $directory]);
679 680 681
      }
      // The files directory requirement check is done only during install and runtime.
      if ($phase == 'runtime') {
682
        $description = t('You may need to set the correct directory at the <a href=":admin-file-system">file system settings page</a> or change the current directory\'s permissions so that it is writable.', [':admin-file-system' => \Drupal::url('system.file_system_settings')]);
683 684 685 686
      }
      elseif ($phase == 'install') {
        // For the installer UI, we need different wording. 'value' will
        // be treated as version, so provide none there.
687
        $description = t('An automated attempt to create this directory failed, possibly due to a permissions problem. To proceed with the installation, either create the directory and modify its permissions manually or ensure that the installer has the permissions to create it automatically. For more information, see INSTALL.txt or the <a href=":handbook_url">online handbook</a>.', [':handbook_url' => 'https://www.drupal.org/server-permissions']);
688 689 690
        $requirements['file system']['value'] = '';
      }
      if (!empty($description)) {
691
        $description = [
692 693
          '#type' => 'inline_template',
          '#template' => '{{ error }} {{ description }}',
694
          '#context' => [
695 696
            'error' => $error,
            'description' => $description,
697 698
          ],
        ];
699 700 701
        $requirements['file system']['description'] = $description;
        $requirements['file system']['severity'] = REQUIREMENT_ERROR;
      }
702 703
    }
    else {
704 705 706
      // This function can be called before the config_cache table has been
      // created.
      if ($phase == 'install' || file_default_scheme() == 'public') {
707
        $requirements['file system']['value'] = t('Writable (<em>public</em> download method)');
708 709
      }
      else {
710
        $requirements['file system']['value'] = t('Writable (<em>private</em> download method)');
711
      }
712 713 714
    }
  }

715 716
  // See if updates are available in update.php.
  if ($phase == 'runtime') {
717
    $requirements['update'] = [
718 719
      'title' => t('Database updates'),
      'value' => t('Up to date'),
720
    ];
721 722

    // Check installed modules.
723
    $has_pending_updates = FALSE;
724
    foreach (\Drupal::moduleHandler()->getModuleList() as $module => $filename) {
725 726 727 728
      $updates = drupal_get_schema_versions($module);
      if ($updates !== FALSE) {
        $default = drupal_get_installed_schema_version($module);
        if (max($updates) > $default) {
729
          $has_pending_updates = TRUE;
730 731 732 733
          break;
        }
      }
    }
734 735 736 737 738 739 740 741 742 743 744 745
    if (!$has_pending_updates) {
      /** @var \Drupal\Core\Update\UpdateRegistry $post_update_registry */
      $post_update_registry = \Drupal::service('update.post_update_registry');
      $missing_post_update_functions = $post_update_registry->getPendingUpdateFunctions();
      if (!empty($missing_post_update_functions)) {
        $has_pending_updates = TRUE;
      }
    }

    if ($has_pending_updates) {
      $requirements['update']['severity'] = REQUIREMENT_ERROR;
      $requirements['update']['value'] = t('Out of date');
746
      $requirements['update']['description'] = t('Some modules have database schema updates to install. You should run the <a href=":update">database update script</a> immediately.', [':update' => \Drupal::url('system.db_update')]);
747
    }
748

749 750 751 752 753
    $requirements['entity_update'] = [
      'title' => t('Entity/field definitions'),
      'value' => t('Up to date'),
    ];
    // Verify that no entity updates are pending.
754 755 756 757 758 759 760 761 762 763 764
    if ($change_list = \Drupal::entityDefinitionUpdateManager()->getChangeSummary()) {
      $build = [];
      foreach ($change_list as $entity_type_id => $changes) {
        $entity_type = \Drupal::entityManager()->getDefinition($entity_type_id);
        $build[] = [
          '#theme' => 'item_list',
          '#title' => $entity_type->getLabel(),
          '#items' => $changes,
        ];
      }

765
      $entity_update_issues = \Drupal::service('renderer')->renderPlain($build);
766 767
      $requirements['entity_update']['severity'] = REQUIREMENT_ERROR;
      $requirements['entity_update']['value'] = t('Mismatched entity and/or field definitions');
768
      $requirements['entity_update']['description'] = t('The following changes were detected in the entity type and field definitions. @updates', ['@updates' => $entity_update_issues]);
769
    }
770 771
  }

772 773
  // Verify the update.php access setting
  if ($phase == 'runtime') {
774
    if (Settings::get('update_free_access')) {
775
      $requirements['update access'] = [
776
        'value' => t('Not protected'),
777
        'severity' => REQUIREMENT_ERROR,
778 779
        'description' => t('The update.php script is accessible to everyone without authentication check, which is a security risk. You must change the @settings_name value in your settings.php back to FALSE.', ['@settings_name' => '$settings[\'update_free_access\']']),
      ];
780 781
    }
    else {
782
      $requirements['update access'] = [
783
        'value' => t('Protected'),
784
      ];
785
    }
786
    $requirements['update access']['title'] = t('Access to update.php');
787 788
  }

789 790
  // Display an error if a newly introduced dependency in a module is not resolved.
  if ($phase == 'update') {
webchick's avatar