function advagg_relocate_get_remote_data in Advanced CSS/JS Aggregation 7.2

Gets external CSS and JS files; caches and returns response.

Parameters

string $urls: URLs to get.

string $type: Will be css or js.

array $options: Array of settings for the http request.

bool $force_check: TRUE if you want to force check the external source.

Return value

array Array of http responses.

2 calls to advagg_relocate_get_remote_data()

advagg_relocate_css_post_alter in advagg_relocate/advagg_relocate.module

Alter the css array.

advagg_relocate_js_post_alter in advagg_relocate/advagg_relocate.module

Alter the js array.

File

advagg_relocate/advagg_relocate.advagg.inc, line 365

Advanced aggregation relocate module.

Code

function advagg_relocate_get_remote_data($urls, $type, array $options = array(), $force_check = FALSE) {

  // Set arguments for drupal_http_request().
  $options += array(
    'headers' => array(
      'Accept-Encoding' => 'gzip, deflate',
      'Connection' => 'close',
      'Referer' => $GLOBALS['base_root'] . request_uri(),
    ),
    'timeout' => 8,
    'version' => '1.0',
  );
  if (function_exists('brotli_uncompress')) {
    $options['headers']['Accept-Encoding'] .= ', br';
  }

  // Build CID.
  $cids = array();
  foreach ($urls as $k => $v) {
    $cids["advagg_relocate_{$type}_external:{$k}"] = "advagg_relocate_{$type}_external:{$k}";
  }

  // Try local cache.
  $return = array();
  $responses = array();
  $cached_data = cache_get_multiple($cids, 'cache_advagg_info');
  $cached_data = array_merge($cids, $cached_data);
  $url_to_cid = array();
  $request_sent = FALSE;
  foreach ($cached_data as $cid => $cache) {

    // CID not set, skip.
    if (empty($cid)) {
      continue;
    }

    // Set cid, filename and get url.
    $options['cid'] = $cid;
    $options['filename'] = substr($cid, 26 + strlen($type));

    // Filename lookup failure, skip.
    if (empty($urls[$options['filename']])) {
      continue;
    }

    // Add url to the lookup array.
    $url = advagg_force_https_path($urls[$options['filename']]);
    $url_to_cid[$url] = $cid;

    // Reset headers if needed.
    if (isset($options['headers']['If-None-Match'])) {
      unset($options['headers']['If-None-Match']);
    }
    if (isset($options['headers']['If-Modified-Since'])) {
      unset($options['headers']['If-Modified-Since']);
    }

    // Use cached data or setup for 304.
    if (!empty($cache->data)) {
      if ($cache->expire >= REQUEST_TIME && isset($cache->data->url) && empty($force_check)) {
        $return[$cache->data->url] = $cache->data;
        continue;
      }
      else {

        // Set header for 304 response.
        if (isset($cached_data->data->headers['etag'])) {
          $options['headers']['If-None-Match'] = $cached_data->data->headers['etag'];
        }
        if (isset($cached_data->created)) {
          $options['headers']['If-Modified-Since'] = gmdate('D, d M Y H:i:s T', $cached_data->created);
        }
      }
    }

    // Get data.
    if (module_exists('httprl')) {
      $request_sent = TRUE;
      httprl_request($url, $options);
    }
    else {
      $request_sent = TRUE;
      $responses[$url] = drupal_http_request($url, $options);
      if (!isset($responses[$url]->options)) {
        $responses[$url]->options = $options;
      }
      if (!isset($responses[$url]->url)) {
        $responses[$url]->url = $url;
      }
    }
  }
  if ($request_sent && module_exists('httprl')) {
    $responses = httprl_send_request();
  }
  if (empty($responses)) {
    return $return;
  }

  // Try failures again.
  advagg_relocate_try_failures_again($responses);

  // Process remote data.
  foreach ($responses as $url => $response) {

    // Content length does not match the response data.
    if (!empty($response->headers['content-length']) && $response->headers['content-length'] > strlen($response->data)) {
      continue;
    }

    // No url is a no go.
    if (empty($response->url)) {
      $response->url = $url;
    }
    if (isset($response->options['cid'])) {
      $cid = $response->options['cid'];
    }
    elseif (isset($url_to_cid[$response->url])) {
      $cid = $url_to_cid[$response->url];
    }
    else {

      // Can't match up url to the cid.
      continue;
    }

    // Update object.
    if (!isset($response->options['filename'])) {
      $response->options['filename'] = substr($cid, 26 + strlen($type));
    }
    if (!isset($response->options['cid'])) {
      $response->options['cid'] = $cid;
    }
    advagg_relocate_process_http_request($response, $type);
    if ($response->code == 304 && !empty($cached_data->data)) {

      // Update cache expire time.
      cache_set($cid, $cached_data->data, 'cache_advagg_info', REQUEST_TIME + $response->ttl);

      // Return cached data.
      $return[$cached_data->data->url] = $cached_data->data;
    }

    // Skip if not a 200.
    if ($response->code != 200 && $response->code != 201 && $response->code != 202 && $response->code != 206) {
      continue;
    }
    if (empty($response->data)) {
      continue;
    }
    $response->local_cache = FALSE;

    // Save data to the cache.
    if (!empty($response->data)) {
      $response->hash = drupal_hash_base64($response->data);
      $response->local_cache = TRUE;
      cache_set($cid, $response, 'cache_advagg_info', REQUEST_TIME + $response->ttl);
      $response->local_cache = FALSE;
    }
    $return[$response->url] = $response;
  }
  return $return;
}