function advagg_js_alter in Advanced CSS/JS Aggregation 8.2

Same name and namespace in other branches

1. 8.4 advagg.module \advagg_js_alter()
2. 8.3 advagg.module \advagg_js_alter()
3. 7.2 advagg.module \advagg_js_alter()

Implements hook_js_alter().

File

./advagg.module, line 118

Advanced CSS/JS aggregation module.

Code

function advagg_js_alter(&$js) {

  // Skip if advagg is disabled.
  if (!advagg_enabled()) {
    return;
  }

  // Add DNS information for some of the more popular modules.
  foreach ($js as &$value) {
    if (!is_string($value['data'])) {
      continue;
    }

    // Google Ad Manager.
    if (strpos($value['data'], '/google_service.') !== FALSE) {
      if (!empty($value['dns_prefetch']) && is_string($value['dns_prefetch'])) {
        $temp = $value['dns_prefetch'];
        unset($value['dns_prefetch']);
        $value['dns_prefetch'] = [
          $temp,
        ];
      }

      // Domains in the google_service.js file.
      $value['dns_prefetch'][] = 'https://csi.gstatic.com';
      $value['dns_prefetch'][] = 'https://pubads.g.doubleclick.net';
      $value['dns_prefetch'][] = 'https://partner.googleadservices.com';
      $value['dns_prefetch'][] = 'https://securepubads.g.doubleclick.net';

      // Domains in the google_ads.js file.
      $value['dns_prefetch'][] = 'https://pagead2.googlesyndication.com';

      // Other domains that usually get hit.
      $value['dns_prefetch'][] = 'https://cm.g.doubleclick.net';
      $value['dns_prefetch'][] = 'https://tpc.googlesyndication.com';
    }

    // Google Analytics.
    if (strpos($value['data'], 'GoogleAnalyticsObject') !== FALSE || strpos($value['data'], '.google-analytics.com/ga.js') !== FALSE) {
      if (!empty($value['dns_prefetch']) && is_string($value['dns_prefetch'])) {
        $temp = $value['dns_prefetch'];
        unset($value['dns_prefetch']);
        $value['dns_prefetch'] = [
          $temp,
        ];
      }
      if (strpos($value['data'], '.google-analytics.com/ga.js') !== FALSE) {
        $value['dns_prefetch'][] = 'https://ssl.google-analytics.com';
      }
      $value['dns_prefetch'][] = 'https://stats.g.doubleclick.net';
    }
  }
  unset($value);

  // Fix type if it was incorrectly set.
  if (\Drupal::config('advagg.settings')
    ->get('js_fix_type')) {

    // Get hostname and base path.
    $mod_base_url = substr($GLOBALS['base_root'] . $GLOBALS['base_path'], strpos($GLOBALS['base_root'] . $GLOBALS['base_path'], '//') + 2);
    $mod_base_url_len = strlen($mod_base_url);
    foreach ($js as &$value) {

      // Skip if the data is empty or not a string.
      if (empty($value['data']) || !is_string($value['data'])) {
        continue;
      }

      // Default to file if not file or external.
      if ($value['type'] !== 'file' && $value['type'] !== 'external') {
        if ($value['type'] === 'settings') {
          $value['type'] = 'setting';
        }
        else {
          $value['type'] = 'file';
        }
      }

      // If type is external but doesn't start with http, https, or // change it
      // to file.
      if ($value['type'] === 'external' && stripos($value['data'], 'http://') !== 0 && stripos($value['data'], 'https://') !== 0 && stripos($value['data'], '//') !== 0) {
        $value['type'] = 'file';
      }

      // If type is file but it starts with http, https, or // change it to
      // external.
      if ($value['type'] === 'file' && (stripos($value['data'], 'http://') === 0 || stripos($value['data'], 'https://') === 0 || stripos($value['data'], '//') === 0 && stripos($value['data'], '///') === FALSE)) {
        $value['type'] = 'external';
      }

      // If type is external and starts with http, https, or // but points to
      // this host change to file, but move it to the top of the aggregation
      // stack as long as js_preserve_external is not set.
      if (\Drupal::config('advagg.settings')
        ->get('js_preserve_external') === FALSE) {
        if ($value['type'] === 'external' && stripos($value['data'], $mod_base_url) !== FALSE && (stripos($value['data'], 'http://') === 0 || stripos($value['data'], 'https://') === 0 || stripos($value['data'], '//') === 0)) {
          $value['type'] = 'file';
          $value['group'] = JS_LIBRARY;
          $value['every_page'] = TRUE;
          $value['weight'] = -40000;
          $value['data'] = substr($value['data'], stripos($value['data'], $mod_base_url) + $mod_base_url_len);
        }
      }
    }
    unset($value);
  }
}