function advagg_relocate_js_script_rewrite in Advanced CSS/JS Aggregation 7.2

Add external.

Parameters

array $js: JS array.

array $scripts_found: An array of inline scripts found and locations for them in the file.

Related topics

2 calls to advagg_relocate_js_script_rewrite()

advagg_relocate_advagg_get_js_file_contents_alter in advagg_relocate/advagg_relocate.advagg.inc

Implements hook_advagg_get_js_file_contents_alter().

advagg_relocate_js_post_alter in advagg_relocate/advagg_relocate.module

Alter the js array.

File

advagg_relocate/advagg_relocate.module, line 547

Advanced aggregation relocate module.

Code

function advagg_relocate_js_script_rewrite(array &$js, array $scripts_found) {

  // Move inline code to external if possible.
  foreach ($scripts_found as $key_name => $values) {
    if ($key_name === 'analytics.js') {
      list($key, $start, $middle, $end) = $values;
      $value = $js[$key];

      // Get analytics.js URL and add it to the js array.
      $analytics_js_url = substr($value['data'], $middle + 29, $end - strlen($value['data']) - 1);
      $insert = array(
        $analytics_js_url => array(
          'data' => $analytics_js_url,
          'type' => 'external',
          'async' => TRUE,
          'defer' => TRUE,
          'noasync' => FALSE,
          'nodefer' => FALSE,
        ),
      );
      $js = advagg_insert_into_array_at_key($js, $insert, $key);
      $js[$analytics_js_url] += $value;

      // Fix if analytics.js is already local.
      $http_pos = strpos($analytics_js_url, 'http://');
      $https_pos = strpos($analytics_js_url, 'https://');
      $double_slash_pos = strpos($analytics_js_url, '//');
      if ($http_pos !== 0 && $https_pos !== 0 && $double_slash_pos !== 0) {
        $js[$analytics_js_url]['type'] = 'file';
      }

      // Shorten function arguments.
      $value['data'] = substr($value['data'], 0, $middle + 27) . substr($value['data'], $end);

      // Strip loader string.
      $value['data'] = substr($value['data'], 0, $start + 132) . substr($value['data'], $middle);

      // Shorten function parameters.
      $value['data'] = str_replace('function(i,s,o,g,r,a,m){i["GoogleAnalyticsObject"]', 'function(i,s,o,r){i["GoogleAnalyticsObject"]', $value['data']);
      $js[$key]['pre_relocate_data'] = $js[$key]['data'];
      $js[$key]['data'] = $value['data'];

      // Pin to header as the js expects ga to be there.
      $js[$key]['scope'] = 'header';
      $js[$key]['scope_lock'] = TRUE;

      // Handle ga("require", ...) calls for external scripts to be loaded.
      $matches = array();
      preg_match_all('/ga\\([\'"]require[\'"],\\s*[\'"][a-zA-Z0-9_ ]*[\'"],\\s*[\'"](.*?)[\'"]\\)/', $value['data'], $matches, PREG_SET_ORDER);
      foreach ($matches as $match) {

        // Remove inline js loader code.
        $start = strpos($js[$key]['data'], $match[0]);
        if ($start === FALSE) {
          continue;
        }
        $strlen = strlen($match[0]);
        $js[$key]['data'] = substr($js[$key]['data'], 0, $start) . substr($js[$key]['data'], $start + $strlen);

        // Add script to the drupal js array.
        $url = '//www.google-analytics.com/plugins/ua/' . $match[1];
        $insert = array(
          $url => array(
            'data' => $url,
            'type' => 'external',
            'async' => TRUE,
            'defer' => TRUE,
            'noasync' => FALSE,
            'nodefer' => FALSE,
          ),
        );
        $js = advagg_insert_into_array_at_key($js, $insert, $analytics_js_url);
        $js[$url] += $value;
      }
    }
    if ($key_name === 'piwik.js') {
      list($key, $start, $middle) = $values;
      $value = $js[$key];

      // Get URL.
      $url = variable_get('matomo_url_http', '');
      if ($GLOBALS['is_https']) {

        // Use HTTPS.
        $url = variable_get('matomo_url_https', '');
      }
      if (is_callable('_matomo_cache') && variable_get('matomo_cache', 0) && ($matomo_cache = _matomo_cache($url . 'piwik.js'))) {

        // Try cache.
        $url = $matomo_cache;
      }
      if (empty($url)) {

        // Extract info from inline script.
        // "https:" == document.location.protocol ? "https://.../piwik/" : "http://.../piwik/".
        $pattern = '/[\'"]https\\:[\'"]\\s*==\\s*document\\.location\\.protocol.*?[\'"](.*?)[\'"]\\s*\\:\\s*[\'"](.*?)[\'"]/';
        preg_match($pattern, $value['data'], $matches);
        if ($GLOBALS['is_https'] && !empty($matches[1])) {
          $url = $matches[1];
        }
        elseif (empty($GLOBALS['is_https']) && !empty($matches[2])) {
          $url = $matches[2];
        }
      }
      if (!empty($url)) {

        // Use HTTP.
        // The $url may or may not have "piwik.js" at the end (it has if it came from _matomo_cache call above, otherwise not). Add if needed.
        $url = check_url($url);
        if (basename($url) != 'piwik.js') {
          $url = $url . 'piwik.js';
        }
      }

      // Final checks.
      if (!empty($url)) {
        $scope = variable_get('matomo_js_scope', $value['scope']);
        $url = advagg_convert_abs_to_rel($url, TRUE);
        $type = 'file';
        if (advagg_is_external($url)) {
          $parsed = parse_url($url);
          if (strpos($parsed['path'], $GLOBALS['base_path']) === 0) {
            $path = substr($parsed['path'], strlen($GLOBALS['base_path']));
            if (file_exists($path)) {
              $url = $path;
            }
            else {
              $type = 'external';
            }
          }
          else {
            $type = 'external';
          }
        }

        // Add to js array.
        $insert = array(
          $url => array(
            'scope' => $scope,
            'data' => $url,
            'type' => $type,
            'async' => TRUE,
            'defer' => TRUE,
            'noasync' => FALSE,
            'nodefer' => FALSE,
          ),
        );
        $js = advagg_insert_into_array_at_key($js, $insert, $key);
        $matches = array();

        // s.parentNode.insertBefore(g,s);.
        $pattern = '/\\,?\\s*[\\w]{1,2}\\.parentNode\\.insertBefore\\(\\s*[\\w]{1,2}\\s*,\\s*[\\w]{1,2}\\s*\\)\\s*\\;*/';
        preg_match($pattern, $value['data'], $matches);

        // Strip loader string.
        $value['data'] = str_replace($matches[0], '', $value['data']);
        $js[$key]['pre_relocate_data'] = $js[$key]['data'];
        $js[$key]['data'] = $value['data'];

        // Pin to header as the js expects paq to be loaded before the file.
        $js[$key]['scope'] = 'header';
        $js[$key]['scope_lock'] = TRUE;
        $js[$key]['weight'] = -50000;
        $js[$key]['movable'] = FALSE;
      }
    }
    if ($key_name === 'gtm.js') {
      list($key, $start, $middle, $end) = $values;
      $value = $js[$key];

      // Get URL for script.
      $matches_a = array();
      preg_match('/j.src\\s*=\\s*[\'"](.*?);/', $value['data'], $matches_a);
      $matches_b = array();
      preg_match('/\\}\\)\\(window,document,[\'"]script[\'"],[\'"](.*?)[\'"],[\'"](.*?)[\'"]\\);/', $value['data'], $matches_b);
      if (empty($matches_a[1]) || empty($matches_b[1])) {
        continue;
      }
      if ($matches_b[1] !== 'dataLayer') {
        $matches_b[1] = '&l=' . $matches_b[1];
      }
      else {
        $matches_b[1] = '';
      }
      $gtm_url = trim(str_replace(array(
        "'+i",
        "+dl+'",
        "+dl",
      ), array(
        $matches_b[2],
        $matches_b[1],
        $matches_b[1],
      ), $matches_a[1]), "'");

      // Add script to the drupal js array.
      $insert = array(
        $gtm_url => array(
          'data' => $gtm_url,
          'type' => 'external',
          'async' => TRUE,
          'defer' => TRUE,
          'noasync' => FALSE,
          'nodefer' => FALSE,
        ),
      );
      $js = advagg_insert_into_array_at_key($js, $insert, $key);
      $js[$gtm_url] += $value;

      // Shorten function arguments.
      $args = explode(',', substr($value['data'], $end + 3, -2));
      $value['data'] = substr($value['data'], 0, $end + 9) . ",{$args[3]});";

      // Strip loader string.
      $value['data'] = substr($value['data'], 0, $middle) . substr($value['data'], $end);

      // Shorten function parameters.
      $value['data'] = str_replace('(function(w,d,s,l,i){', '(function(w,l){', $value['data']);

      // Add back.
      $js[$key]['pre_relocate_data'] = $js[$key]['data'];
      $js[$key]['data'] = $value['data'];

      // Pin to header as the js expects dataLayer to be there.
      $js[$key]['scope'] = 'header';
      $js[$key]['scope_lock'] = TRUE;
    }
    if ($key_name === 'fbds.js') {
      list($key, $start, $middle, $end) = $values;
      $value = $js[$key];

      // Get URL for script.
      $matches = array();
      preg_match('/fbds.src\\s*=\\s*[\'"](.*?)[\'"];/', $value['data'], $matches);
      if (empty($matches[1])) {
        continue;
      }
      $url = trim($matches[1]);

      // Add script to the drupal js array.
      $insert = array(
        $url => array(
          'data' => $url,
          'type' => 'external',
          'async' => TRUE,
          'defer' => TRUE,
          'noasync' => FALSE,
          'nodefer' => FALSE,
        ),
      );
      $js = advagg_insert_into_array_at_key($js, $insert, $key);
      $js[$url] += $value;

      // Strip loader string.
      $matches = array();
      preg_match('/if\\s*\\(!_fbq.loaded\\)\\s*\\{/', $value['data'], $matches, PREG_OFFSET_CAPTURE);
      $new_js = substr($value['data'], 0, $matches[0][1]);

      // Set loaded TRUE.
      $matches = array();
      preg_match('/_fbq.loaded\\s*=\\s*true/', $value['data'], $matches, PREG_OFFSET_CAPTURE);
      $new_js .= $matches[0][0] . ';';

      // Get the rest of the JS string.
      $end = strpos($value['data'], '}', $matches[0][1]);
      $new_js .= trim(substr($value['data'], $end + 1));
      $js[$key]['pre_relocate_data'] = $js[$key]['data'];
      $js[$key]['data'] = $new_js;

      // Pin to header as the js expects _fbq to be there.
      $js[$key]['scope'] = 'header';
      $js[$key]['scope_lock'] = TRUE;
    }
    if ($key_name === 'fbevents.js') {
      list($key, $start, $middle, $end) = $values;
      $value = $js[$key];

      // Add script to the drupal js array.
      $url = 'https://connect.facebook.net/en_US/fbevents.js';
      $insert = array(
        $url => array(
          'data' => $url,
          'type' => 'external',
        ),
      );
      $js = advagg_insert_into_array_at_key($js, $insert, $key);
      $js[$url] += $value;
      $before = substr($value['data'], 0, $start);
      $after = ltrim(substr($value['data'], $end + 40), ';');

      // Get all facebook pixel ids.
      $fb_ids = array_filter(array_map('trim', explode("\n", variable_get('advagg_relocate_js_fbevents_local_ids', ADVAGG_RELOCATE_JS_FBEVENTS_LOCAL_IDS))));
      $matches = array();
      preg_match('/fbq\\(\\s*[\'"]init[\'"]\\s*,\\s*[\'"](\\d+)[\'"]\\s*\\)/', $value['data'], $matches);
      if (!empty($matches[1])) {
        $fb_ids[] = $matches[1];
      }
      $fb_ids = array_filter($fb_ids);

      // Update in place the ids if any others were found inline.
      $GLOBALS['conf']['advagg_relocate_js_fbevents_local_ids'] = implode("\n", $fb_ids);

      // Get scripts before and after; replace middle of script.
      $new_js = $before . "!function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod?n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n;n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0;t.src=v;s=b.getElementsByTagName(e)[0]}(window,document,'script','//connect.facebook.net/en_US/fbevents.js');" . $after;
      $js[$key]['pre_relocate_data'] = $js[$key]['data'];
      $js[$key]['data'] = $new_js;

      // Pin to header as the js expects fbq to be there.
      $js[$key]['scope'] = 'header';
      $js[$key]['scope_lock'] = TRUE;
    }
    if ($key_name === 'perfectaudience.js') {
      list($key, $start, $middle, $end) = $values;
      $value = $js[$key];

      // Reindex.
      $matches = array();
      preg_match('/window\\._pa\\s*=\\s*window._pa\\s*\\|\\|\\s*\\{\\s*\\}\\s*;/', $value['data'], $matches, PREG_OFFSET_CAPTURE);
      if (!empty($matches[0][1])) {
        $start = $matches[0][1];
        $middle = strpos($value['data'], '//tag.perfectaudience.com/serve/', $start);
        $end = strpos($value['data'], 's.parentNode.insertBefore(pa, s);', $middle);
        $substr = substr($value['data'], $start, $end - $start + 35);
        $matches = array();
        preg_match('/\\.src\\s*=\\s*[\'"](\\/\\/tag.perfectaudience.com\\/serve\\/.*\\.js)[\'"]/', $substr, $matches);
        if (!empty($matches[1])) {
          $url = $matches[1];

          // Add script to the drupal js array.
          $insert = array(
            $url => array(
              'data' => $url,
              'type' => 'external',
              'async' => TRUE,
              'defer' => TRUE,
              'noasync' => FALSE,
              'nodefer' => FALSE,
            ),
          );
          $js = advagg_insert_into_array_at_key($js, $insert, $key);
          $js[$url] += $value;

          // s.parentNode.insertBefore(pa, s);.
          $pattern = '/\\,?\\s*[\\w]{1,2}\\.parentNode\\.insertBefore\\(\\s*[\\w]{1,2}\\s*,\\s*[\\w]{1,2}\\s*\\)\\s*\\;*/';

          // Strip loader string.
          $new_substr = preg_replace($pattern, '', $substr);
          $js[$key]['data'] = str_replace($substr, $new_substr, $value['data']);
        }
      }
    }
    if ($key_name === 'uwt.js') {
      list($key, $start, $middle, $end) = $values;
      $value = $js[$key];
      $url = '//static.ads-twitter.com/uwt.js';

      // Add script to the drupal js array.
      $insert = array(
        $url => array(
          'data' => $url,
          'type' => 'external',
          'scope_lock' => FALSE,
          'scope' => 'footer',
        ),
      );
      $js = advagg_insert_into_array_at_key($js, $insert, $key);
      $js[$url] += $value;

      // Reindex.
      $start = strpos($value['data'], '!function(e,t,n,s,u,a){e.twq||');
      $middle = strpos($value['data'], '//static.ads-twitter.com/uwt.js', $start);
      $end = strpos($value['data'], "a.parentNode.insertBefore(u,a))}(window,document,'script');", $middle);
      $substr = substr($value['data'], $start, $end - $start + 61);

      // a.parentNode.insertBefore(u,a).
      $pattern = '/\\,?\\s*[\\w]{1,2}\\.parentNode\\.insertBefore\\(\\s*[\\w]{1,2}\\s*,\\s*[\\w]{1,2}\\s*\\)\\s*\\;*/';

      // Strip loader string.
      $new_substr = preg_replace($pattern, '', $substr);
      $js[$key]['data'] = str_replace($substr, $new_substr, $value['data']);
    }
    if ($key_name === 'linkedin_insight.js') {
      list($key, $start, $middle, $end) = $values;
      $value = $js[$key];
      $url = 'https://snap.licdn.com/li.lms-analytics/insight.min.js';

      // Add script to the drupal js array.
      $insert = array(
        $url => array(
          'data' => $url,
          'type' => 'external',
          'async' => TRUE,
          'defer' => TRUE,
          'noasync' => FALSE,
          'nodefer' => FALSE,
        ),
      );
      $js = advagg_insert_into_array_at_key($js, $insert, $key);
      $js[$url] += $value;
      $start = strpos($value['data'], '_linkedin_data_partner_id');
      $middle = strpos($value['data'], '//snap.licdn.com/li.lms-analytics/insight.min.js', $start);
      $end = strpos($value['data'], "s.parentNode.insertBefore(b, s)", $middle);
      $substr = substr($value['data'], $start, $end - $start + 35);

      // a.parentNode.insertBefore(u,a).
      $pattern = '/\\,?\\s*[\\w]{1,2}\\.parentNode\\.insertBefore\\(\\s*[\\w]{1,2}\\s*,\\s*[\\w]{1,2}\\s*\\)\\s*\\;*/';

      // Strip loader string.
      $new_substr = preg_replace($pattern, '', $substr);
      $js[$key]['data'] = str_replace($substr, $new_substr, $value['data']);
    }
  }
}