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<?php
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/**
 * @file
 * Install, update and uninstall functions for the system module.
 */
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use Drupal\Component\Utility\Crypt;
use Drupal\Core\Database\Database;
use Drupal\Core\Language\Language;
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use Drupal\Core\StreamWrapper\PublicStream;
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/**
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 * Implements hook_requirements().
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 */
function system_requirements($phase) {
  $requirements = array();

  // Report Drupal version
  if ($phase == 'runtime') {
    $requirements['drupal'] = array(
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      'title' => t('Drupal'),
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      'value' => \Drupal::VERSION,
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      'severity' => REQUIREMENT_INFO,
      'weight' => -10,
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    );
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    // Display the currently active installation profile, if the site
    // is not running the default installation profile.
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    $profile = drupal_get_profile();
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    if ($profile != 'standard') {
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      $info = system_get_info('module', $profile);
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      $requirements['install_profile'] = array(
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        'title' => t('Installation profile'),
        'value' => t('%profile_name (%profile-%version)', array(
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          '%profile_name' => $info['name'],
          '%profile' => $profile,
          '%version' => $info['version']
        )),
        'severity' => REQUIREMENT_INFO,
        'weight' => -9
      );
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    }
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  }

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  // Web server information.
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  $software = \Drupal::request()->server->get('SERVER_SOFTWARE');
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  $requirements['webserver'] = array(
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    'title' => t('Web server'),
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    'value' => $software,
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  );

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  // Test PHP version and show link to phpinfo() if it's available
  $phpversion = phpversion();
  if (function_exists('phpinfo')) {
    $requirements['php'] = array(
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      'title' => t('PHP'),
      'value' => ($phase == 'runtime') ? $phpversion .' ('. l(t('more information'), 'admin/reports/status/php') .')' : $phpversion,
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    );
  }
  else {
    $requirements['php'] = array(
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      'title' => t('PHP'),
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      'value' => $phpversion,
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      '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.', array('@phpinfo' => 'http://drupal.org/node/243993')),
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      'severity' => REQUIREMENT_INFO,
    );
  }

  if (version_compare($phpversion, DRUPAL_MINIMUM_PHP) < 0) {
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    $requirements['php']['description'] = t('Your PHP installation is too old. Drupal requires at least PHP %version.', array('%version' => DRUPAL_MINIMUM_PHP));
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    $requirements['php']['severity'] = REQUIREMENT_ERROR;
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    // If PHP is old, it's not safe to continue with the requirements check.
    return $requirements;
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  }
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  // Test for PHP extensions.
  $requirements['php_extensions'] = array(
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    'title' => t('PHP extensions'),
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  );
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  $missing_extensions = array();
  $required_extensions = array(
    'date',
    'dom',
    'filter',
    'gd',
    'hash',
    'json',
    'pcre',
    'pdo',
    'session',
    'SimpleXML',
    'SPL',
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    'tokenizer',
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    'xml',
  );
  foreach ($required_extensions as $extension) {
    if (!extension_loaded($extension)) {
      $missing_extensions[] = $extension;
    }
  }

  if (!empty($missing_extensions)) {
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    $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):', array(
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      '@system_requirements' => 'http://drupal.org/requirements',
    ));

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    $item_list = array(
      '#theme' => 'item_list',
      '#items' => $missing_extensions,
    );
    $description .= drupal_render($item_list);
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    $requirements['php_extensions']['value'] = t('Disabled');
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    $requirements['php_extensions']['severity'] = REQUIREMENT_ERROR;
    $requirements['php_extensions']['description'] = $description;
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  }
  else {
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    $requirements['php_extensions']['value'] = t('Enabled');
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  }
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  if ($phase == 'install' || $phase == 'update') {
    // Test for PDO (database).
    $requirements['database_extensions'] = array(
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      'title' => t('Database support'),
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    );
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    // Make sure PDO is available.
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    $database_ok = extension_loaded('pdo');
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    if (!$database_ok) {
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      $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.', array(
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        '@link' => 'http://drupal.org/requirements/pdo',
      ));
    }
    else {
      // Make sure at least one supported database driver exists.
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      $drivers = drupal_detect_database_types();
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      if (empty($drivers)) {
        $database_ok = FALSE;
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        $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>.', array(
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          '@drupal-databases' => 'http://drupal.org/node/270#database',
        ));
      }
      // 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;
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        $pdo_message = t('Your web server seems to have the wrong version of PDO installed. Drupal requires the PDO extension from PHP core. This system has the older PECL version. See the <a href="@link">system requirements</a> page for more information.', array(
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          '@link' => 'http://drupal.org/requirements/pdo#pecl',
        ));
      }
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    }
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    if (!$database_ok) {
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      $requirements['database_extensions']['value'] = t('Disabled');
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      $requirements['database_extensions']['severity'] = REQUIREMENT_ERROR;
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      $requirements['database_extensions']['description'] = $pdo_message;
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    }
    else {
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      $requirements['database_extensions']['value'] = t('Enabled');
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    }
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  }
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  else {
    // Database information.
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    $class = Database::getConnection()->getDriverClass('Install\\Tasks');
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    $tasks = new $class();
    $requirements['database_system'] = array(
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      'title' => t('Database system'),
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      'value' => $tasks->name(),
    );
    $requirements['database_system_version'] = array(
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      'title' => t('Database system version'),
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      'value' => Database::getConnection()->version(),
    );
  }
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  // Test PHP memory_limit
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  $memory_limit = ini_get('memory_limit');
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  $requirements['php_memory_limit'] = array(
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    'title' => t('PHP memory limit'),
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    'value' => $memory_limit == -1 ? t('-1 (Unlimited)') : $memory_limit,
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  );
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  if (!drupal_check_memory_limit(DRUPAL_MINIMUM_PHP_MEMORY_LIMIT, $memory_limit)) {
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    $description = '';
    if ($phase == 'install') {
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      $description = t('Consider increasing your PHP memory limit to %memory_minimum_limit to help prevent errors in the installation process.', array('%memory_minimum_limit' => DRUPAL_MINIMUM_PHP_MEMORY_LIMIT));
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    }
    elseif ($phase == 'update') {
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      $description = t('Consider increasing your PHP memory limit to %memory_minimum_limit to help prevent errors in the update process.', array('%memory_minimum_limit' => DRUPAL_MINIMUM_PHP_MEMORY_LIMIT));
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    }
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    elseif ($phase == 'runtime') {
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      $description = 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.', array('%memory_limit' => $memory_limit, '%memory_minimum_limit' => DRUPAL_MINIMUM_PHP_MEMORY_LIMIT));
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    }
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    if (!empty($description)) {
      if ($php_ini_path = get_cfg_var('cfg_file_path')) {
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        $description .= ' ' . 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).', array('%configuration-file' => $php_ini_path));
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      }
      else {
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        $description .= ' ' . t('Contact your system administrator or hosting provider for assistance with increasing your PHP memory limit.');
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      }
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      $requirements['php_memory_limit']['description'] = $description . ' ' . t('For more information, see the online handbook entry for <a href="@memory-limit">increasing the PHP memory limit</a>.', array('@memory-limit' => 'http://drupal.org/node/207036'));
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      $requirements['php_memory_limit']['severity'] = REQUIREMENT_WARNING;
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    }
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  }
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  // Test configuration files and directory for writability.
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  if ($phase == 'runtime') {
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    $conf_errors = array();
    $conf_path = conf_path();
    if (!drupal_verify_install_file($conf_path, FILE_NOT_WRITABLE, 'dir')) {
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      $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.", array('%file' => $conf_path));
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    }
    foreach (array('settings.php', 'settings.local.php') as $conf_file) {
      $full_path = $conf_path . '/' . $conf_file;
      if (file_exists($full_path) && !drupal_verify_install_file($full_path, FILE_EXIST|FILE_READABLE|FILE_NOT_WRITABLE)) {
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        $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.", array('%file' => $full_path));
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      }
    }
    if (!empty($conf_errors)) {
      if (count($conf_errors) == 1) {
        $description = $conf_errors[0];
      }
      else {
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        $item_list = array(
          '#theme' => 'item_list',
          '#items' => $conf_errors,
        );
        $description = drupal_render($item_list);
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      }
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      $requirements['settings.php'] = array(
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        'value' => t('Not protected'),
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        'severity' => REQUIREMENT_ERROR,
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        'description' => $description,
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      );
    }
    else {
      $requirements['settings.php'] = array(
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        'value' => t('Protected'),
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      );
    }
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    $requirements['settings.php']['title'] = t('Configuration files');
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  }

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  // 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();
    $htaccess_files['public://.htaccess'] = array(
      'title' => t('Public files directory'),
      'directory' => drupal_realpath('public://'),
    );
    if (\Drupal::config('system.file')->get('path.private')) {
      $htaccess_files['private://.htaccess'] = array(
        'title' => t('Private files directory'),
        'directory' => drupal_realpath('private://'),
      );
    }
    $htaccess_files['temporary://.htaccess'] = array(
      'title' => t('Temporary files directory'),
      'directory' => drupal_realpath('temporary://'),
    );
    foreach ($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) {
        $requirements[$htaccess_file] = array(
          'title' => $info['title'],
          'value' => t('Not fully protected'),
          'severity' => REQUIREMENT_ERROR,
          '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.', array('@url' => 'http://drupal.org/SA-CORE-2013-003', '%directory' => $info['directory'])),
        );
      }
    }
  }

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  // Report cron status.
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  if ($phase == 'runtime') {
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    $cron_config = \Drupal::config('system.cron');
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    // Cron warning threshold defaults to two days.
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    $threshold_warning = $cron_config->get('threshold.requirements_warning');
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    // Cron error threshold defaults to two weeks.
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    $threshold_error = $cron_config->get('threshold.requirements_error');
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    // Cron configuration help text.
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    $help = t('For more information, see the online handbook entry for <a href="@cron-handbook">configuring cron jobs</a>.', array('@cron-handbook' => 'http://drupal.org/cron'));
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    // Determine when cron last ran.
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    $cron_last = \Drupal::state()->get('system.cron_last');
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    if (!is_numeric($cron_last)) {
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      $cron_last = \Drupal::state()->get('install_time', 0);
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    }
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    // Determine severity based on time since cron last ran.
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    $severity = REQUIREMENT_INFO;
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    if (REQUEST_TIME - $cron_last > $threshold_error) {
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      $severity = REQUIREMENT_ERROR;
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    }
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    elseif (REQUEST_TIME - $cron_last > $threshold_warning) {
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      $severity = REQUIREMENT_WARNING;
    }

    // Set summary and description based on values determined above.
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    $summary = t('Last run !time ago', array('!time' => format_interval(REQUEST_TIME - $cron_last)));
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    $description = '';
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    if ($severity != REQUIREMENT_INFO) {
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      $description = t('Cron has not run recently.') . ' ' . $help;
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    }
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    $description .= ' ' . t('You can <a href="@cron">run cron manually</a>.', array('@cron' => url('admin/reports/status/run-cron')));
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    $description .= '<br />' . t('To run cron from outside the site, go to <a href="!cron">!cron</a>', array('!cron' => url('cron/' . \Drupal::state()->get('system.cron_key'), array('absolute' => TRUE))));
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    $requirements['cron'] = array(
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      'title' => t('Cron maintenance tasks'),
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      'severity' => $severity,
      'value' => $summary,
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      'description' => $description
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    );
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  }
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  if ($phase != 'install') {
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    $filesystem_config = \Drupal::config('system.file');
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    $directories = array(
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      PublicStream::basePath(),
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      // By default no private files directory is configured. For private files
      // to be secure the admin needs to provide a path outside the webroot.
      $filesystem_config->get('path.private'),
      file_directory_temp(),
    );
  }
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  // During an install we need to make assumptions about the file system
  // unless overrides are provided in settings.php.
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  if ($phase == 'install') {
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    $directories = array();
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    if ($file_public_path = settings()->get('file_public_path')) {
      $directories[] = $file_public_path;
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    }
    else {
      // If we are installing Drupal, the settings.php file might not exist yet
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      // in the intended site directory, so don't require it.
      $directories[] = conf_path(FALSE) . '/files';
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    }
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    if (!empty($GLOBALS['config']['system.file']['path']['private'])) {
      $directories[] = $GLOBALS['config']['system.file']['path']['private'];
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    }
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    if (!empty($GLOBALS['config']['system.file']['path']['temporary'])) {
      $directories[] = $GLOBALS['config']['system.file']['path']['temporary'];
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    }
    else {
      // If the temporary directory is not overridden use an appropriate
      // temporary path for the system.
      $directories[] = file_directory_os_temp();
    }
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  }

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  // 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.
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  if (!empty($GLOBALS['config_directories'])) {
    $directories[] = config_get_config_directory(CONFIG_ACTIVE_DIRECTORY);
    $directories[] = config_get_config_directory(CONFIG_STAGING_DIRECTORY);
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  }
  elseif ($phase != 'install') {
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    $requirements['config directories'] = array(
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      'title' => t('Configuration directories'),
      'value' => t('Not present'),
      'description' => t('Your %file file must define the $config_directories variable as an array containing the name of a directories in which configuration files can be written.', array('%file' => conf_path() . '/settings.php')),
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      'severity' => REQUIREMENT_ERROR,
    );
  }

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  $requirements['file system'] = array(
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    'title' => t('File system'),
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  );
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  $error = '';
  // For installer, create the directories if possible.
  foreach ($directories as $directory) {
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    if (!$directory) {
      continue;
    }
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    if ($phase == 'install') {
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      file_prepare_directory($directory, FILE_CREATE_DIRECTORY | FILE_MODIFY_PERMISSIONS);
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    }
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    $is_writable = is_writable($directory);
    $is_directory = is_dir($directory);
    if (!$is_writable || !$is_directory) {
      $description = '';
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      $requirements['file system']['value'] = t('Not writable');
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      if (!$is_directory) {
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        $error .= t('The directory %directory does not exist.', array('%directory' => $directory)) . ' ';
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      }
      else {
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        $error .= t('The directory %directory is not writable.', array('%directory' => $directory)) . ' ';
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      }
      // The files directory requirement check is done only during install and runtime.
      if ($phase == 'runtime') {
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        $description = $error . t('You may need to set the correct directory at the <a href="@admin-file-system">file system settings page</a> or change the current directory\'s permissions so that it is writable.', array('@admin-file-system' => url('admin/config/media/file-system')));
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      }
      elseif ($phase == 'install') {
        // For the installer UI, we need different wording. 'value' will
        // be treated as version, so provide none there.
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        $description = $error . 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>.', array('@handbook_url' => 'http://drupal.org/server-permissions'));
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        $requirements['file system']['value'] = '';
      }
      if (!empty($description)) {
        $requirements['file system']['description'] = $description;
        $requirements['file system']['severity'] = REQUIREMENT_ERROR;
      }
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    }
    else {
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      // This function can be called before the config_cache table has been
      // created.
      if ($phase == 'install' || file_default_scheme() == 'public') {
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        $requirements['file system']['value'] = t('Writable (<em>public</em> download method)');
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      }
      else {
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        $requirements['file system']['value'] = t('Writable (<em>private</em> download method)');
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      }
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    }
  }

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  // See if updates are available in update.php.
  if ($phase == 'runtime') {
    $requirements['update'] = array(
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      'title' => t('Database updates'),
      'value' => t('Up to date'),
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    );

    // Check installed modules.
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    foreach (\Drupal::moduleHandler()->getModuleList() as $module => $filename) {
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      $updates = drupal_get_schema_versions($module);
      if ($updates !== FALSE) {
        $default = drupal_get_installed_schema_version($module);
        if (max($updates) > $default) {
          $requirements['update']['severity'] = REQUIREMENT_ERROR;
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          $requirements['update']['value'] = t('Out of date');
          $requirements['update']['description'] = t('Some modules have database schema updates to install. You should run the <a href="@update">database update script</a> immediately.', array('@update' => base_path() . 'core/update.php'));
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          break;
        }
      }
    }
  }

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  // Verify the update.php access setting
  if ($phase == 'runtime') {
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    if (settings()->get('update_free_access')) {
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      $requirements['update access'] = array(
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        'value' => t('Not protected'),
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        'severity' => REQUIREMENT_ERROR,
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        'description' => t('The update.php script is accessible to everyone without authentication check, which is a security risk. You must change the @settings_name value in your settings.php back to FALSE.', array('@settings_name' => '$settings[\'update_free_access\']')),
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      );
    }
    else {
      $requirements['update access'] = array(
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        'value' => t('Protected'),
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      );
    }
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    $requirements['update access']['title'] = t('Access to update.php');
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  }

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  // Display an error if a newly introduced dependency in a module is not resolved.
  if ($phase == 'update') {
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    $profile = drupal_get_profile();
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    $files = system_rebuild_module_data();
    foreach ($files as $module => $file) {
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      // Ignore disabled modules and installation profiles.
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      if (!$file->status || $module == $profile) {
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        continue;
      }
      // Check the module's PHP version.
      $name = $file->info['name'];
      $php = $file->info['php'];
      if (version_compare($php, PHP_VERSION, '>')) {
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        $requirements['php']['description'] .= t('@name requires at least PHP @version.', array('@name' => $name, '@version' => $php));
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        $requirements['php']['severity'] = REQUIREMENT_ERROR;
      }
      // Check the module's required modules.
      foreach ($file->requires as $requirement) {
        $required_module = $requirement['name'];
        // Check if the module exists.
        if (!isset($files[$required_module])) {
          $requirements["$module-$required_module"] = array(
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            'title' => t('Unresolved dependency'),
            'description' => t('@name requires this module.', array('@name' => $name)),
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            'value' => t('@required_name (Missing)', array('@required_name' => $required_module)),
            'severity' => REQUIREMENT_ERROR,
          );
          continue;
        }
        // Check for an incompatible version.
        $required_file = $files[$required_module];
        $required_name = $required_file->info['name'];
497
        $version = str_replace(\Drupal::CORE_COMPATIBILITY . '-', '', $required_file->info['version']);
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501
        $compatibility = drupal_check_incompatibility($requirement, $version);
        if ($compatibility) {
          $compatibility = rtrim(substr($compatibility, 2), ')');
          $requirements["$module-$required_module"] = array(
502
503
            'title' => t('Unresolved dependency'),
            'description' => t('@name requires this module and version. Currently using @required_name version @version', array('@name' => $name, '@required_name' => $required_name, '@version' => $version)),
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510
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512
            'value' => t('@required_name (Version @compatibility required)', array('@required_name' => $required_name, '@compatibility' => $compatibility)),
            'severity' => REQUIREMENT_ERROR,
          );
          continue;
        }
      }
    }
  }

513
  // Test Unicode library
514
  include_once DRUPAL_ROOT . '/core/includes/unicode.inc';
515
516
  $requirements = array_merge($requirements, unicode_requirements());

517
  if ($phase == 'runtime') {
518
    // Check for update status module.
519
    if (!\Drupal::moduleHandler()->moduleExists('update')) {
520
      $requirements['update status'] = array(
521
        'value' => t('Not enabled'),
522
        'severity' => REQUIREMENT_WARNING,
523
        'description' => t('Update notifications are not enabled. It is <strong>highly recommended</strong> that you enable the Update Manager module from the <a href="@module">module administration page</a> in order to stay up-to-date on new releases. For more information, <a href="@update">Update status handbook page</a>.', array('@update' => 'http://drupal.org/documentation/modules/update', '@module' => url('admin/modules'))),
524
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527
      );
    }
    else {
      $requirements['update status'] = array(
528
        'value' => t('Enabled'),
529
530
      );
    }
531
    $requirements['update status']['title'] = t('Update notifications');
532
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536
537
538
539
540

    if (settings()->get('rebuild_access')) {
      $requirements['rebuild access'] = array(
        'title' => t('Rebuild access'),
        'value' => t('Enabled'),
        'severity' => REQUIREMENT_ERROR,
        'description' => t('The rebuild_access setting is enabled in settings.php. It is recommended to have this setting disabled unless you are performing a rebuild.'),
      );
    }
541
542
  }

543
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547
548
549
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551
552
553
554
555
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557
558
559
560
561
  // Ensure that if upgrading from 7 to 8 we have no disabled modules.
  if ($phase == 'update' && db_table_exists('system')) {
    $modules = db_query('SELECT name, info FROM {system} WHERE type = :module AND status = 0 AND schema_version <> :schema_uninstalled', array(
      ':module' => 'module',
      ':schema_uninstalled' => SCHEMA_UNINSTALLED,
    ))->fetchAllKeyed(0, 1);
    array_walk($modules, function (&$value, $key) {
      $info = unserialize($value);
      $value = $info['name'];
    });
    if (!empty($modules)) {
      $requirements['disabled_modules'] = array(
        'severity' => REQUIREMENT_ERROR,
        'title' => t('Disabled modules'),
        'value' => format_plural(count($modules), 'The %modules module is disabled.', 'The following modules are disabled: %modules', array('%modules' => implode(', ', $modules))),
        'description' => t('Drupal 8 no longer supports disabled modules. Please either enable or uninstall them before upgrading.'),
      );
    }
  }
562
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564
  return $requirements;
}

565
/**
566
 * Implements hook_install().
567
 */
568
function system_install() {
569
  // Enable and set the default theme. Can't use theme_enable() this early in
570
  // installation.
571
  \Drupal::service('config.installer')->installDefaultConfig('theme', 'stark');
572
  \Drupal::config('system.theme')
573
574
    ->set('default', 'stark')
    ->save();
575

576
  // Populate the cron key state variable.
577
  $cron_key = Crypt::randomBytesBase64(55);
578
  \Drupal::state()->set('system.cron_key', $cron_key);
579
580
581
582
583

  // Populate the site UUID.
  \Drupal::config('system.site')
    ->set('uuid', \Drupal::service('uuid')->generate())
    ->save();
584
585
}

586
/**
587
 * Implements hook_schema().
588
589
590
 */
function system_schema() {
  $schema['batch'] = array(
591
    'description' => 'Stores details about batches (processes that run in multiple HTTP requests).',
592
    'fields' => array(
593
      'bid' => array(
594
        'description' => 'Primary Key: Unique batch ID.',
595
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597
        // This is not a serial column, to allow both progressive and
        // non-progressive batches. See batch_process().
        'type' => 'int',
598
        'unsigned' => TRUE,
599
600
        'not null' => TRUE,
      ),
601
      'token' => array(
602
        'description' => "A string token generated against the current user's session id and the batch id, used to ensure that only the user who submitted the batch can effectively access it.",
603
604
        'type' => 'varchar',
        'length' => 64,
605
606
        'not null' => TRUE,
      ),
607
      'timestamp' => array(
608
        'description' => 'A Unix timestamp indicating when this batch was submitted for processing. Stale batches are purged at cron time.',
609
        'type' => 'int',
610
611
        'not null' => TRUE,
      ),
612
      'batch' => array(
613
        'description' => 'A serialized array containing the processing data for the batch.',
614
        'type' => 'blob',
615
        'not null' => FALSE,
616
        'size' => 'big',
617
      ),
618
    ),
619
    'primary key' => array('bid'),
620
621
622
623
    'indexes' => array(
      'token' => array('token'),
    ),
  );
624
625

  $schema['flood'] = array(
626
    'description' => 'Flood controls the threshold of events, such as the number of contact attempts.',
627
    'fields' => array(
628
      'fid' => array(
629
        'description' => 'Unique flood event ID.',
630
        'type' => 'serial',
631
632
        'not null' => TRUE,
      ),
633
      'event' => array(
634
        'description' => 'Name of event (e.g. contact).',
635
636
637
        'type' => 'varchar',
        'length' => 64,
        'not null' => TRUE,
638
639
        'default' => '',
      ),
640
641
      'identifier' => array(
        'description' => 'Identifier of the visitor, such as an IP address or hostname.',
642
643
644
        'type' => 'varchar',
        'length' => 128,
        'not null' => TRUE,
645
646
        'default' => '',
      ),
647
      'timestamp' => array(
648
        'description' => 'Timestamp of the event.',
649
650
        'type' => 'int',
        'not null' => TRUE,
651
        'default' => 0,
652
      ),
653
654
655
656
657
658
      'expiration' => array(
        'description' => 'Expiration timestamp. Expired events are purged on cron run.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
      ),
659
    ),
660
    'primary key' => array('fid'),
661
    'indexes' => array(
662
      'allow' => array('event', 'identifier', 'timestamp'),
663
      'purge' => array('expiration'),
664
    ),
665
  );
666

667
  $schema['key_value'] = array(
668
    'description' => 'Generic key-value storage table. See the state system for an example.',
669
670
671
672
673
674
675
676
677
678
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680
681
682
683
684
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686
687
688
689
690
691
692
693
    'fields' => array(
      'collection' => array(
        'description' => 'A named collection of key and value pairs.',
        'type' => 'varchar',
        'length' => 128,
        'not null' => TRUE,
        'default' => '',
      ),
      'name' => array(
        'description' => 'The key of the key-value pair. As KEY is a SQL reserved keyword, name was chosen instead.',
        'type' => 'varchar',
        'length' => 128,
        'not null' => TRUE,
        'default' => '',
      ),
      'value' => array(
        'description' => 'The value.',
        'type' => 'blob',
        'not null' => TRUE,
        'size' => 'big',
      ),
    ),
    'primary key' => array('collection', 'name'),
  );

694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
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721
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723
724
725
726
727
  $schema['key_value_expire'] = array(
    'description' => 'Generic key/value storage table with an expiration.',
    'fields' => array(
      'collection' => array(
        'description' => 'A named collection of key and value pairs.',
        'type' => 'varchar',
        'length' => 128,
        'not null' => TRUE,
        'default' => '',
      ),
      'name' => array(
        // KEY is an SQL reserved word, so use 'name' as the key's field name.
        'description' => 'The key of the key/value pair.',
        'type' => 'varchar',
        'length' => 128,
        'not null' => TRUE,
        'default' => '',
      ),
      'value' => array(
        'description' => 'The value of the key/value pair.',
        'type' => 'blob',
        'not null' => TRUE,
        'size' => 'big',
      ),
      'expire' => array(
        'description' => 'The time since Unix epoch in seconds when this item expires. Defaults to the maximum possible time.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 2147483647,
      ),
    ),
    'primary key' => array('collection', 'name'),
    'indexes' => array(
      'all' => array('name', 'collection', 'expire'),
728
      'expire' => array('expire'),
729
730
731
    ),
  );

732
  $schema['menu_router'] = array(
733
    'description' => 'Maps paths to various callbacks (access, page and title)',
734
    'fields' => array(
735
      'path' => array(
736
        'description' => 'Primary Key: the Drupal path this entry describes',
737
738
739
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
740
741
        'default' => '',
      ),
742
      'load_functions' => array(
743
        'description' => 'A serialized array of function names (like node_load) to be called to load an object corresponding to a part of the current path.',
744
        'type' => 'blob',
745
        'not null' => TRUE,
746
      ),
747
      'to_arg_functions' => array(
748
        'description' => 'A serialized array of function names (like user_uid_optional_to_arg) to be called to replace a part of the router path with another string.',
749
        'type' => 'blob',
750
        'not null' => TRUE,
751
      ),
752
      'access_callback' => array(
753
        'description' => 'The callback which determines the access to this router path. Defaults to user_access.',
754
755
756
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
757
758
        'default' => '',
      ),
759
      'access_arguments' => array(
760
        'description' => 'A serialized array of arguments for the access callback.',
761
        'type' => 'blob',
762
763
        'not null' => FALSE,
      ),
764
      'page_callback' => array(
765
        'description' => 'The name of the function that renders the page.',
766
767
768
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
769
770
        'default' => '',
      ),
771
      'page_arguments' => array(
772
        'description' => 'A serialized array of arguments for the page callback.',
773
        'type' => 'blob',
774
775
        'not null' => FALSE,
      ),
776
      'fit' => array(
777
        'description' => 'A numeric representation of how specific the path is.',
778
779
        'type' => 'int',
        'not null' => TRUE,
780
781
        'default' => 0,
      ),
782
      'number_parts' => array(
783
        'description' => 'Number of parts in this router path.',
784
785
786
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
787
788
        'size' => 'small',
      ),
789
790
791
792
793
794
      'context' => array(
        'description' => 'Only for local tasks (tabs) - the context of a local task to control its placement.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
      ),
795
      'tab_parent' => array(
796
        'description' => 'Only for local tasks (tabs) - the router path of the parent page (which may also be a local task).',
797
798
799
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
800
801
        'default' => '',
      ),
802
      'tab_root' => array(
803
        'description' => 'Router path of the closest non-tab parent page. For pages that are not local tasks, this will be the same as the path.',
804
805
806
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
807
808
        'default' => '',
      ),
809
      'title' => array(
810
        'description' => 'The title for the current page, or the title for the tab if this is a local task.',
811
812
813
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
814
815
        'default' => '',
      ),
816
      'title_callback' => array(
817
        'description' => 'A function which will alter the title. Defaults to t()',
818
819
820
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
821
822
        'default' => '',
      ),
823
      'title_arguments' => array(
824
        'description' => 'A serialized array of arguments for the title callback. If empty, the title will be used as the sole argument for the title callback.',
825
826
827
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
828
829
        'default' => '',
      ),
830
      'type' => array(
831
        'description' => 'Numeric representation of the type of the menu item, like MENU_LOCAL_TASK.',
832
833
        'type' => 'int',
        'not null' => TRUE,
834
835
        'default' => 0,
      ),
836
      'description' => array(
837
        'description' => 'A description of this item.',
838
        'type' => 'text',
839
840
        'not null' => TRUE,
      ),
841
842
843
844
845
846
847
848
849
850
851
852
853
854
      'description_callback' => array(
        'description' => 'A function which will alter the description. Defaults to t().',
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
      ),
      'description_arguments' => array(
        'description' => 'A serialized array of arguments for the description callback. If empty, the description will be used as the sole argument for the description callback.',
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
      ),
855
      'position' => array(
856
        'description' => 'The position of the block (left or right) on the system administration page for this item.',
857
858
859
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
860
861
        'default' => '',
      ),
862
      'weight' => array(
863
        'description' => 'Weight of the element. Lighter weights are higher up, heavier weights go down.',
864
865
        'type' => 'int',
        'not null' => TRUE,
866
867
        'default' => 0,
      ),
868
      'include_file' => array(
869
870
        'description' => 'The file to include for this element, usually the page callback function lives in this file.',
        'type' => 'text',
871
        'size' => 'medium',
872
      ),
873
874
875
876
877
      'route_name' => array(
        'description' => 'The machine name of a defined Symfony Route this menu item represents.',
        'type' => 'varchar',
        'length' => 255,
      ),
878
    ),
879
    'indexes' => array(
880
      'fit' => array('fit'),
881
      'tab_parent' => array(array('tab_parent', 64), 'weight', 'title'),
882
      'tab_root_weight_title' => array(array('tab_root', 64), 'weight', 'title'),
883
    ),
884
    'primary key' => array('path'),
885
  );
886

887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
  $schema['queue'] = array(
    'description' => 'Stores items in queues.',
    'fields' => array(
      'item_id' => array(
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'description' => 'Primary Key: Unique item ID.',
      ),
      'name' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
        'description' => 'The queue name.',
      ),
      'data' => array(
904
        'type' => 'blob',
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
        'not null' => FALSE,
        'size' => 'big',
        'serialize' => TRUE,
        'description' => 'The arbitrary data for the item.',
      ),
      'expire' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'description' => 'Timestamp when the claim lease expires on the item.',
      ),
      'created' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'description' => 'Timestamp when the item was created.',
      ),
    ),
    'primary key' => array('item_id'),
    'indexes' => array(