public function GoogleSiteSearch::GetSearchResults in Google Site Search 6

Same name and namespace in other branches

1. 7 includes/GoogleSiteSearch.inc \GoogleSiteSearch::getSearchResults()

Get search results.

Parameters

string $query The search query.:

int $page The page to get results from.:

Return value

array The search results.

Throws

Exception

File

includes/GoogleSiteSearch.inc, line 213

Class

GoogleSiteSearch

Class for interaction with Google Site Search.

Code

public function GetSearchResults($page = 1) {

  // set page
  $this->currentPage = $page;

  // calculate start postition based on page
  $startPos = ($this->currentPage - 1) * $this->pageSize;
  if ($this->language) {
    $language = "&lr=lang_{$this->language}";
  }
  else {
    $language = NULL;
  }

  // prepare query parameters for URL assembly
  if (count($this->extraParams) > 0) {
    $extraParamsQuery = '&' . http_build_query($this->extraParams);
  }
  else {
    $extraParamsQuery = NULL;
  }

  // fetch results from google
  $url_response = drupal_http_request(url(GSS_BASE_URL, array(
    'query' => drupal_query_string_encode(array(
      'start' => $startPos,
      'num' => $this->pageSize,
      $language,
      'client' => 'google-csbe',
      'output' => 'xml_no_dtd',
      'cx' => $this->key,
      'q' => $this->query,
      $extraParamsQuery,
    )),
  )));
  if ($url_response->error) {
    return NULL;
  }
  $results = simplexml_load_string($url_response->data);
  if ($results !== FALSE) {
    if (!isset($results->RES->M)) {

      // no results, return NULL
      return NULL;
    }
    else {

      // save total results
      $this->totalResults = intval(check_plain((string) $results->RES->M));

      // store faceted items in order to use them later in the header
      $categories = array();
      foreach ($results->Context->Facet as $facet) {
        $categories[] = array(
          'label' => check_plain((string) $facet->FacetItem->label),
          'anchor_text' => check_plain((string) $facet->FacetItem->anchor_text),
        );
      }
      $this->categories = $categories;

      // init results array
      $arr = array();

      // loop results
      foreach ($results->RES->R as $result) {

        // init result array
        $item = array();
        $item['title'] = filter_xss((string) $result->T, $this
          ->GetAllowedTags());
        $item['url'] = check_url((string) $result->UE);
        $item['description'] = filter_xss((string) $result->S, $this
          ->GetAllowedTags());

        // let's get the image thumbnail - present in PageMap->DataObject['type'] == cse_thumbnail
        if (isset($result->PageMap->DataObject)) {
          foreach ($result->PageMap->DataObject as $do) {
            switch ((string) $do['type']) {
              case 'cse_thumbnail':

                //we are inside the thumbnail node, lets get the src attribute:
                foreach ($do->Attribute as $att) {
                  switch ((string) $att['name']) {
                    case 'src':
                      $item['thumbnail_url'] = check_url((string) $att['value']);
                      break;
                  }
                }
                break;
            }
          }
        }
        $arr[] = $item;
      }

      // return results
      return $arr;
    }
  }
  else {
    throw new Exception('Could not load search results from Google.');
  }
}