system.install 103 KB
Newer Older
Dries's avatar
 
Dries committed
1
<?php
2

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

8
use Drupal\Component\FileSystem\FileSystem as FileSystemComponent;
9
use Drupal\Component\Utility\Crypt;
10
use Drupal\Component\Utility\Environment;
11
use Drupal\Component\Utility\OpCodeCache;
12
use Drupal\Component\Utility\Unicode;
13
use Drupal\Core\Cache\Cache;
14
use Drupal\Core\Database\Database;
15
use Drupal\Core\DrupalKernel;
16
use Drupal\Core\Entity\ContentEntityType;
17 18 19
use Drupal\Core\Entity\ContentEntityTypeInterface;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Entity\FieldableEntityInterface;
20
use Drupal\Core\Extension\Extension;
21
use Drupal\Core\Field\BaseFieldDefinition;
22
use Drupal\Core\File\FileSystemInterface;
23
use Drupal\Core\Language\LanguageInterface;
24 25 26
use Drupal\Core\Path\Entity\PathAlias;
use Drupal\Core\Path\PathAliasStorage;
use Drupal\Core\Path\PathAliasStorageSchema;
27
use Drupal\Core\Site\Settings;
28
use Drupal\Core\StreamWrapper\PrivateStream;
29
use Drupal\Core\StreamWrapper\PublicStream;
30 31
use Drupal\Core\StringTranslation\TranslatableMarkup;
use Drupal\Core\Url;
32
use Symfony\Component\HttpFoundation\Request;
33

34
/**
35
 * Implements hook_requirements().
36 37
 */
function system_requirements($phase) {
38
  global $install_state;
39
  $requirements = [];
40 41 42

  // Report Drupal version
  if ($phase == 'runtime') {
43
    $requirements['drupal'] = [
44
      'title' => t('Drupal'),
45
      'value' => \Drupal::VERSION,
Steven Wittens's avatar
Steven Wittens committed
46 47
      'severity' => REQUIREMENT_INFO,
      'weight' => -10,
48
    ];
49

50 51
    // Display the currently active installation profile, if the site
    // is not running the default installation profile.
52
    $profile = \Drupal::installProfile();
53
    if ($profile != 'standard') {
54
      $info = \Drupal::service('extension.list.module')->getExtensionInfo($profile);
55
      $requirements['install_profile'] = [
56
        'title' => t('Installation profile'),
57
        'value' => t('%profile_name (%profile-%version)', [
58 59
          '%profile_name' => $info['name'],
          '%profile' => $profile,
60
          '%version' => $info['version'],
61
        ]),
62
        'severity' => REQUIREMENT_INFO,
63
        'weight' => -9,
64
      ];
65
    }
66 67

    // Warn if any experimental modules are installed.
68
    $experimental = [];
69
    $enabled_modules = \Drupal::moduleHandler()->getModuleList();
70
    foreach ($enabled_modules as $module => $data) {
71
      $info = \Drupal::service('extension.list.module')->getExtensionInfo($module);
72
      if (isset($info['package']) && $info['package'] === 'Core (Experimental)') {
73
        $experimental[$module] = $info['name'];
74 75 76
      }
    }
    if (!empty($experimental)) {
77
      $requirements['experimental'] = [
78
        'title' => t('Experimental modules enabled'),
79
        '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']),
80
        'severity' => REQUIREMENT_WARNING,
81
      ];
82
    }
83 84
  }

85
  // Web server information.
86 87
  $request_object = \Drupal::request();
  $software = $request_object->server->get('SERVER_SOFTWARE');
88
  $requirements['webserver'] = [
89
    'title' => t('Web server'),
Steven Wittens's avatar
Steven Wittens committed
90
    'value' => $software,
91
  ];
92

93
  // Tests clean URL support.
94
  if ($phase == 'install' && $install_state['interactive'] && !$request_object->query->has('rewrite') && strpos($software, 'Apache') !== FALSE) {
95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117
    // 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) {
        $rewrite_error = TRUE;
      }
118
      elseif ($matches[1] == 2) {
119 120 121
        if (!isset($matches[2])) {
          $rewrite_warning = TRUE;
        }
122
        elseif ($matches[2] < 2) {
123 124
          $rewrite_error = TRUE;
        }
125
        elseif ($matches[2] == 2) {
126 127 128
          if (!isset($matches[3])) {
            $rewrite_warning = TRUE;
          }
129
          elseif ($matches[3] < 16) {
130 131 132 133 134 135 136 137 138 139
            $rewrite_error = TRUE;
          }
        }
      }
    }
    else {
      $rewrite_warning = TRUE;
    }

    if ($rewrite_warning) {
140
      $requirements['apache_version'] = [
141 142 143
        'title' => t('Apache version'),
        'value' => $apache_version_string,
        'severity' => REQUIREMENT_WARNING,
144 145
        '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]),
      ];
146 147 148
    }

    if ($rewrite_error) {
149
      $requirements['Apache version'] = [
150 151 152
        'title' => t('Apache version'),
        'value' => $apache_version_string,
        'severity' => REQUIREMENT_ERROR,
153
        '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/docs/8/clean-urls-in-drupal-8']),
154
      ];
155 156 157
    }

    if (!$rewrite_error && !$rewrite_warning) {
158
      $requirements['rewrite_module'] = [
159 160 161
        'title' => t('Clean URLs'),
        'value' => t('Disabled'),
        'severity' => REQUIREMENT_WARNING,
162
        '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/docs/8/clean-urls-in-drupal-8']),
163
      ];
164 165 166
    }
  }

167 168 169 170 171
  // 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.
172
  $phpversion = $phpversion_label = phpversion();
173
  if (function_exists('phpinfo')) {
174
    if ($phase === 'runtime') {
175
      $phpversion_label = t('@phpversion (<a href=":url">more information</a>)', ['@phpversion' => $phpversion, ':url' => (new Url('system.php'))->toString()]);
176
    }
177
    $requirements['php'] = [
178
      'title' => t('PHP'),
179
      'value' => $phpversion_label,
180
    ];
181 182
  }
  else {
183 184
    // @todo Revisit whether this description makes sense in
    //   https://www.drupal.org/project/drupal/issues/2927318.
185
    $requirements['php'] = [
186
      'title' => t('PHP'),
187
      'value' => $phpversion_label,
188
      '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']),
189
      'severity' => REQUIREMENT_INFO,
190
    ];
191 192
  }

193 194 195 196 197 198 199 200 201
  // Check if the PHP version is below what Drupal supports.
  if (version_compare($phpversion, DRUPAL_MINIMUM_SUPPORTED_PHP) < 0) {
    $requirements['php']['description'] = t('Your PHP installation is too old. Drupal requires at least PHP %version. 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.',
      [
        '%version' => DRUPAL_MINIMUM_SUPPORTED_PHP,
        '%recommended' => DRUPAL_RECOMMENDED_PHP,
        ':php_requirements' => 'https://www.drupal.org/docs/8/system-requirements/php',
      ]
    );
202
    $requirements['php']['severity'] = REQUIREMENT_ERROR;
203 204 205 206 207 208 209 210 211 212

    // If the PHP version is also below the absolute minimum allowed, it's not
    // safe to continue with the requirements check.
    if (version_compare($phpversion, DRUPAL_MINIMUM_PHP) < 0) {
      return $requirements;
    }
    // Otherwise downgrade the error to a warning during updates. Even if there
    // are some problems with the site's PHP version, it's still better for the
    // site to keep its Drupal codebase up to date.
    elseif ($phase === 'update') {
213 214
      $requirements['php']['severity'] = REQUIREMENT_WARNING;
    }
215 216 217 218 219 220 221
    // Since we allow sites with unsupported PHP versions to still run Drupal
    // updates, we also need to be able to run tests with those PHP versions,
    // which requires the ability to install test sites. Not all tests are
    // required to pass on these PHP versions, but we want to monitor which
    // ones do and don't.
    elseif ($phase === 'install' && drupal_valid_test_ua()) {
      $requirements['php']['severity'] = REQUIREMENT_INFO;
222
    }
223
  }
224 225 226 227 228 229
  // For PHP versions that are still supported but no longer recommended,
  // inform users of what's recommended, allowing them to take action before it
  // becomes urgent.
  elseif ($phase === 'runtime' && version_compare($phpversion, DRUPAL_RECOMMENDED_PHP) < 0) {
    $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;
230 231
  }

232
  // Test for PHP extensions.
233
  $requirements['php_extensions'] = [
234
    'title' => t('PHP extensions'),
235
  ];
236

237 238
  $missing_extensions = [];
  $required_extensions = [
239 240 241 242 243 244 245 246 247 248 249
    'date',
    'dom',
    'filter',
    'gd',
    'hash',
    'json',
    'pcre',
    'pdo',
    'session',
    'SimpleXML',
    'SPL',
250
    'tokenizer',
251
    'xml',
252
  ];
253 254 255 256 257 258 259
  foreach ($required_extensions as $extension) {
    if (!extension_loaded($extension)) {
      $missing_extensions[] = $extension;
    }
  }

  if (!empty($missing_extensions)) {
260
    $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):', [
261
      ':system_requirements' => 'https://www.drupal.org/requirements',
262
    ]);
263

264
    // We use twig inline_template to avoid twig's autoescape.
265
    $description = [
266 267
      '#type' => 'inline_template',
      '#template' => '{{ description }}{{ missing_extensions }}',
268
      '#context' => [
269
        'description' => $description,
270
        'missing_extensions' => [
271 272
          '#theme' => 'item_list',
          '#items' => $missing_extensions,
273 274 275
        ],
      ],
    ];
276

277
    $requirements['php_extensions']['value'] = t('Disabled');
278 279
    $requirements['php_extensions']['severity'] = REQUIREMENT_ERROR;
    $requirements['php_extensions']['description'] = $description;
280 281
  }
  else {
282
    $requirements['php_extensions']['value'] = t('Enabled');
283 284 285 286
  }

  if ($phase == 'install' || $phase == 'runtime') {
    // Check to see if OPcache is installed.
287
    if (!OpCodeCache::isEnabled()) {
288
      $requirements['php_opcache'] = [
289 290
        'value' => t('Not enabled'),
        'severity' => REQUIREMENT_WARNING,
291
        '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.'),
292
      ];
293 294 295 296 297
    }
    else {
      $requirements['php_opcache']['value'] = t('Enabled');
    }
    $requirements['php_opcache']['title'] = t('PHP OPcode caching');
298
  }
299

300 301
  if ($phase != 'update') {
    // Test whether we have a good source of random bytes.
302
    $requirements['php_random_bytes'] = [
303
      'title' => t('Random number generation'),
304
    ];
305 306 307
    try {
      $bytes = random_bytes(10);
      if (strlen($bytes) != 10) {
308
        throw new \Exception(t('Tried to generate 10 random bytes, generated @count', ['@count' => strlen($bytes)]));
309 310 311 312 313 314 315 316 317 318 319
      }
      $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);
320
          $open_basedir_blocks_urandom = !array_intersect(['/dev', '/dev/', '/dev/urandom'], $open_basedir_paths);
321 322
        }
      }
323
      $args = [
324
        ':drupal-php' => 'https://www.drupal.org/docs/8/system-requirements/php-requirements',
325
        '%exception_message' => $e->getMessage(),
326
      ];
327 328 329 330 331 332 333 334 335 336 337
      if ($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;
    }
  }

338 339
  if ($phase == 'install' || $phase == 'update') {
    // Test for PDO (database).
340
    $requirements['database_extensions'] = [
341
      'title' => t('Database support'),
342
    ];
343

344
    // Make sure PDO is available.
345
    $database_ok = extension_loaded('pdo');
346
    if (!$database_ok) {
347
      $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.', [
348
        ':link' => 'https://www.drupal.org/requirements/pdo',
349
      ]);
350 351 352
    }
    else {
      // Make sure at least one supported database driver exists.
353
      $drivers = drupal_detect_database_types();
354 355
      if (empty($drivers)) {
        $database_ok = FALSE;
356
        $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>.', [
357
          ':drupal-databases' => 'https://www.drupal.org/requirements/database',
358
        ]);
359 360 361 362 363
      }
      // 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;
364
        $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.', [
365
          ':link' => 'https://www.drupal.org/requirements/pdo#pecl',
366
        ]);
367
      }
368
    }
369

370
    if (!$database_ok) {
371
      $requirements['database_extensions']['value'] = t('Disabled');
372
      $requirements['database_extensions']['severity'] = REQUIREMENT_ERROR;
373
      $requirements['database_extensions']['description'] = $pdo_message;
374 375
    }
    else {
376
      $requirements['database_extensions']['value'] = t('Enabled');
377
    }
378
  }
379 380
  else {
    // Database information.
381
    $class = Database::getConnection()->getDriverClass('Install\\Tasks');
382
    $tasks = new $class();
383
    $requirements['database_system'] = [
384
      'title' => t('Database system'),
385
      'value' => $tasks->name(),
386 387
    ];
    $requirements['database_system_version'] = [
388
      'title' => t('Database system version'),
389
      'value' => Database::getConnection()->version(),
390
    ];
391
  }
392

393
  // Test PHP memory_limit
394
  $memory_limit = ini_get('memory_limit');
395
  $requirements['php_memory_limit'] = [
396
    'title' => t('PHP memory limit'),
397
    'value' => $memory_limit == -1 ? t('-1 (Unlimited)') : $memory_limit,
398
  ];
399

400
  if (!Environment::checkMemoryLimit(DRUPAL_MINIMUM_PHP_MEMORY_LIMIT, $memory_limit)) {
401
    $description = [];
402
    if ($phase == 'install') {
403
      $description['phase'] = t('Consider increasing your PHP memory limit to %memory_minimum_limit to help prevent errors in the installation process.', ['%memory_minimum_limit' => DRUPAL_MINIMUM_PHP_MEMORY_LIMIT]);
404 405
    }
    elseif ($phase == 'update') {
406
      $description['phase'] = t('Consider increasing your PHP memory limit to %memory_minimum_limit to help prevent errors in the update process.', ['%memory_minimum_limit' => DRUPAL_MINIMUM_PHP_MEMORY_LIMIT]);
407
    }
408
    elseif ($phase == 'runtime') {
409
      $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]);
410
    }
411

412
    if (!empty($description['phase'])) {
413
      if ($php_ini_path = get_cfg_var('cfg_file_path')) {
414
        $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]);
415 416
      }
      else {
417
        $description['memory'] = t('Contact your system administrator or hosting provider for assistance with increasing your PHP memory limit.');
418
      }
419

420
      $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']);
421

422
      $description = [
423 424
        '#type' => 'inline_template',
        '#template' => '{{ description_phase }} {{ description_memory }} {{ handbook }}',
425
        '#context' => [
426 427 428
          'description_phase' => $description['phase'],
          'description_memory' => $description['memory'],
          'handbook' => $handbook_link,
429 430
        ],
      ];
431 432

      $requirements['php_memory_limit']['description'] = $description;
433
      $requirements['php_memory_limit']['severity'] = REQUIREMENT_WARNING;
434
    }
435
  }
436

437
  // Test configuration files and directory for writability.
438
  if ($phase == 'runtime') {
439
    $conf_errors = [];
440 441 442 443 444 445 446 447
    // 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());
    }
448 449 450 451
    // 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')) {
452
      $error_value = t('Protection disabled');
453 454 455 456 457
      // 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 {
458
      $error_value = t('Not protected');
459 460 461
      // 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')) {
462
        $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]);
463
      }
464
    }
465
    foreach (['settings.php', 'settings.local.php', 'services.yml'] as $conf_file) {
466
      $full_path = $site_path . '/' . $conf_file;
467
      if (file_exists($full_path) && !drupal_verify_install_file($full_path, FILE_EXIST | FILE_READABLE | FILE_NOT_WRITABLE, 'file', !Settings::get('skip_permissions_hardening'))) {
468
        $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' => $full_path]);
469 470 471 472 473 474 475
      }
    }
    if (!empty($conf_errors)) {
      if (count($conf_errors) == 1) {
        $description = $conf_errors[0];
      }
      else {
476
        // We use twig inline_template to avoid double escaping.
477
        $description = [
478 479
          '#type' => 'inline_template',
          '#template' => '{{ configuration_error_list }}',
480 481
          '#context' => [
            'configuration_error_list' => [
482 483
              '#theme' => 'item_list',
              '#items' => $conf_errors,
484 485 486
            ],
          ],
        ];
487
      }
488
      $requirements['configuration_files'] = [
489
        'value' => $error_value,
490
        'severity' => $file_protection_severity,
491
        'description' => $description,
492
      ];
493 494
    }
    else {
495
      $requirements['configuration_files'] = [
496
        'value' => t('Protected'),
497
      ];
498
    }
499
    $requirements['configuration_files']['title'] = t('Configuration files');
500 501
  }

502 503 504 505
  // 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.
506 507 508 509 510
    /** @var \Drupal\Core\File\HtaccessWriterInterface $htaccessWriter */
    $htaccessWriter = \Drupal::service("file.htaccess_writer");
    $htaccessWriter->ensure();
    foreach ($htaccessWriter->defaultProtectedDirs() as $protected_dir) {
      $htaccess_file = $protected_dir->getPath() . '/.htaccess';
511 512 513
      // Check for the string which was added to the recommended .htaccess file
      // in the latest security update.
      if (!file_exists($htaccess_file) || !($contents = @file_get_contents($htaccess_file)) || strpos($contents, 'Drupal_Security_Do_Not_Remove_See_SA_2013_003') === FALSE) {
514
        $url = 'https://www.drupal.org/SA-CORE-2013-003';
515
        $requirements[$htaccess_file] = [
516
          'title' => new TranslatableMarkup($protected_dir->getTitle()),
517 518
          'value' => t('Not fully protected'),
          'severity' => REQUIREMENT_ERROR,
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' => $protected_dir->getPath()]),
520
        ];
521 522 523 524
      }
    }
  }

525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540
  // Test that path.temporary config is not set.
  if ($phase == 'runtime') {
    if (!Settings::get('file_temp_path')) {
      $filesystem_config = \Drupal::config('system.file');
      if ($temp_path = $filesystem_config->get('path.temporary')) {
        $requirements['temp_directory'] = [
          'title' => t('Temporary Directory'),
          'severity' => REQUIREMENT_WARNING,
          'value' => 'Deprecated configuration',
          'description' => [
            [
              '#markup' => t('You are using deprecated configuration for the temporary files path.'),
              '#suffix' => ' ',
            ],
          ],
        ];
541
        if ($temp_path === FileSystemComponent::getOsTemporaryDirectory()) {
542 543 544 545 546 547 548 549 550 551 552 553 554 555 556
          $requirements['temp_directory']['description'][] = [
            '#markup' => t('Your temporary directory configuration matches the OS default and can be safely removed.'),
            '#suffix' => ' ',
          ];
        }
        else {
          $requirements['temp_directory']['description'][] = [
            '#markup' => t('Remove the configuration and add the following to <code>settings.php</code>. <code>$settings["file_temp_path"] = "%temp_path"', ['%temp_path' => $temp_path]),
            '#suffix' => ' ',
          ];
        }
      }
    }
  }

557
  // Report cron status.
558
  if ($phase == 'runtime') {
559
    $cron_config = \Drupal::config('system.cron');
560
    // Cron warning threshold defaults to two days.
561
    $threshold_warning = $cron_config->get('threshold.requirements_warning');
562
    // Cron error threshold defaults to two weeks.
563
    $threshold_error = $cron_config->get('threshold.requirements_error');
564

565
    // Determine when cron last ran.
566
    $cron_last = \Drupal::state()->get('system.cron_last');
567
    if (!is_numeric($cron_last)) {
568
      $cron_last = \Drupal::state()->get('install_time', 0);
569
    }
570

571
    // Determine severity based on time since cron last ran.
572
    $severity = REQUIREMENT_INFO;
573
    if (REQUEST_TIME - $cron_last > $threshold_error) {
574
      $severity = REQUIREMENT_ERROR;
575
    }
576
    elseif (REQUEST_TIME - $cron_last > $threshold_warning) {
577 578 579 580
      $severity = REQUIREMENT_WARNING;
    }

    // Set summary and description based on values determined above.
581
    $summary = t('Last run @time ago', ['@time' => \Drupal::service('date.formatter')->formatTimeDiffSince($cron_last)]);
582

583
    $requirements['cron'] = [
584
      'title' => t('Cron maintenance tasks'),
585 586
      'severity' => $severity,
      'value' => $summary,
587
    ];
588 589 590 591 592 593 594
    if ($severity != REQUIREMENT_INFO) {
      $requirements['cron']['description'][] = [
        [
          '#markup' => t('Cron has not run recently.'),
          '#suffix' => ' ',
        ],
        [
595
          '#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']),
596 597 598 599 600 601
          '#suffix' => ' ',
        ],
      ];
    }
    $requirements['cron']['description'][] = [
      [
602 603 604 605 606
        '#type' => 'link',
        '#prefix' => '(',
        '#title' => t('more information'),
        '#suffix' => ')',
        '#url' => Url::fromRoute('system.cron_settings'),
607 608
      ],
      [
609 610 611 612 613
        '#prefix' => '<span class="cron-description__run-cron">',
        '#suffix' => '</span>',
        '#type' => 'link',
        '#title' => t('Run cron'),
        '#url' => Url::fromRoute('system.run_cron'),
614 615
      ],
    ];
616
  }
617
  if ($phase != 'install') {
618
    $filesystem_config = \Drupal::config('system.file');
619
    $directories = [
620
      PublicStream::basePath(),
621 622
      // By default no private files directory is configured. For private files
      // to be secure the admin needs to provide a path outside the webroot.
623
      PrivateStream::basePath(),
624
      \Drupal::service('file_system')->getTempDirectory(),
625
    ];
626
  }
627

628 629
  // During an install we need to make assumptions about the file system
  // unless overrides are provided in settings.php.
630
  if ($phase == 'install') {
631
    $directories = [];
632
    if ($file_public_path = Settings::get('file_public_path')) {
633
      $directories[] = $file_public_path;
634 635 636
    }
    else {
      // If we are installing Drupal, the settings.php file might not exist yet
637
      // in the intended site directory, so don't require it.
638 639 640
      $request = Request::createFromGlobals();
      $site_path = DrupalKernel::findSitePath($request);
      $directories[] = $site_path . '/files';
641
    }
642 643
    if ($file_private_path = Settings::get('file_private_path')) {
      $directories[] = $file_private_path;
644
    }
645 646
    if (Settings::get('file_temp_path')) {
      $directories[] = Settings::get('file_temp_path');
647 648 649 650
    }
    else {
      // If the temporary directory is not overridden use an appropriate
      // temporary path for the system.
651
      $directories[] = FileSystemComponent::getOsTemporaryDirectory();
652
    }
653 654
  }

655 656 657
  // 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.
658 659 660 661 662 663 664 665 666
  $config_sync_directory = Settings::get('config_sync_directory');
  if (!empty($config_sync_directory)) {
    // If we're installing Drupal try and create the config sync directory.
    if (!is_dir($config_sync_directory) && $phase == 'install') {
      \Drupal::service('file_system')->prepareDirectory($config_sync_directory, FileSystemInterface::CREATE_DIRECTORY | FileSystemInterface::MODIFY_PERMISSIONS);
    }
    if (!is_dir($config_sync_directory)) {
      if ($phase == 'install') {
        $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' => $config_sync_directory, ':handbook_url' => 'https://www.drupal.org/server-permissions']);
667
      }
668 669
      else {
        $description = t('The directory %directory does not exist.', ['%directory' => $config_sync_directory]);
670
      }
671 672 673 674 675
      $requirements['config sync directory'] = [
        'title' => t('Configuration sync directory'),
        'description' => $description,
        'severity' => REQUIREMENT_ERROR,
      ];
676
    }
677
  }
678 679 680
  if ($phase != 'install' && empty($config_sync_directory)) {
    $requirements['config sync directory'] = [
      'title' => t('Configuration sync directory'),
681
      'value' => t('Not present'),
682
      'description' => t("Your %file file must define the %setting setting as a string containing the directory in which configuration files can be found.", ['%file' => $site_path . '/settings.php', '%setting' => "\$settings['config_sync_directory']"]),
683
      'severity' => REQUIREMENT_ERROR,
684
    ];
685 686
  }

687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712
  // Handle other configuration directories. This will be removed in Drupal 9.
  // See https://www.drupal.org/node/3018145.
  $bc_config_directories = isset($GLOBALS['config_directories']) ? $GLOBALS['config_directories'] : [];
  unset($bc_config_directories['sync']);
  foreach (array_keys(array_filter($bc_config_directories)) as $type) {
    @trigger_error("Automatic creation of '$type' configuration directory will be removed from drupal:9.0.0. See https://www.drupal.org/node/3018145.", E_USER_DEPRECATED);
    $directory = config_get_config_directory($type);
    // If we're installing Drupal try and create the config sync directory.
    if (!is_dir($directory) && $phase == 'install') {
      \Drupal::service('file_system')->prepareDirectory($directory, FileSystemInterface::CREATE_DIRECTORY | FileSystemInterface::MODIFY_PERMISSIONS);
    }
    if (!is_dir($directory)) {
      if ($phase == 'install') {
        $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']);
      }
      else {
        $description = t('The directory %directory does not exist.', ['%directory' => $directory]);
      }
      $requirements['config directory ' . $type] = [
        'title' => t('Configuration directory: %type', ['%type' => $type]),
        'description' => $description,
        'severity' => REQUIREMENT_ERROR,
      ];
    }
  }

713
  $requirements['file system'] = [
714
    'title' => t('File system'),
715
  ];
716

717 718 719
  $error = '';
  // For installer, create the directories if possible.
  foreach ($directories as $directory) {
720 721 722
    if (!$directory) {
      continue;
    }
723
    if ($phase == 'install') {
724
      \Drupal::service('file_system')->prepareDirectory($directory, FileSystemInterface::CREATE_DIRECTORY | FileSystemInterface::MODIFY_PERMISSIONS);
725
    }
726 727 728 729
    $is_writable = is_writable($directory);
    $is_directory = is_dir($directory);
    if (!$is_writable || !$is_directory) {
      $description = '';
730
      $requirements['file system']['value'] = t('Not writable');
731
      if (!$is_directory) {
732
        $error = t('The directory %directory does not exist.', ['%directory' => $directory]);
733 734
      }
      else {
735
        $error = t('The directory %directory is not writable.', ['%directory' => $directory]);
736 737 738
      }
      // The files directory requirement check is done only during install and runtime.
      if ($phase == 'runtime') {
739
        $description = t('You may need to set the correct directory at the <a href=":admin-file-system">file system settings page</a> or change the current directory\'s permissions so that it is writable.', [':admin-file-system' => Url::fromRoute('system.file_system_settings')->toString()]);
740 741 742 743
      }
      elseif ($phase == 'install') {
        // For the installer UI, we need different wording. 'value' will
        // be treated as version, so provide none there.
744
        $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']);
745 746 747
        $requirements['file system']['value'] = '';
      }
      if (!empty($description)) {
748
        $description = [