public function GoogleCSEServices::service in Google Custom Search Engine 8.3

Same name and namespace in other branches

1. 8.2 src/GoogleCSEServices.php \Drupal\google_cse\GoogleCSEServices::service()

Sends query to Google's Custom Search Engine and returns response.

Parameters

string $keys: The search terms.

int $offset: The result number to start at.

Return value

string XML response string.

1 call to GoogleCSEServices::service()

GoogleCSEServices::getAccurateResultsCount in src/GoogleCSEServices.php

Get the exact (accurate) number of search results to be used in the pager.

File

src/GoogleCSEServices.php, line 121

Class

GoogleCSEServices

Additional functions as services for Google CSE.

Namespace

Drupal\google_cse

Code

public function service($keys, $offset = 0) {
  $page = 0;
  $response = [];
  if ($this->requestStack
    ->getCurrentRequest()->query
    ->has('page')) {
    $page = $this->requestStack
      ->getCurrentRequest()->query
      ->get('page');
  }
  if (isset($response[$keys])) {
    return $response[$keys];
  }

  // Number of results per page. 10 is the default for Google CSE.
  // @TODO Confirm input in UI
  $rows = (int) $this->CSEconfig
    ->get('configuration')['google_cse_adv_results_per_page'];
  $query = [
    'cx' => $this->CSEconfig
      ->get('configuration')['cx'],
    'client' => 'google-csbe',
    'output' => 'xml_no_dtd',
    'filter' => '1',
    'hl' => $this
      ->paramhl(),
    'lr' => $this
      ->paramlr(),
    'q' => $keys,
    'num' => $rows,
    'start' => $offset ? $offset : $page * $rows,
    'as_sitesearch' => $this->CSEconfig
      ->get('configuration')['limit_domain'],
  ];
  if ($this->requestStack
    ->getCurrentRequest()->query
    ->has('more')) {
    $query['+more:'] = urlencode($this->requestStack
      ->getCurrentRequest()->query
      ->get('more'));
  }
  $url = Url::fromUri($this
    ->getProtocol() . 'www.google.com/cse', [
    'query' => $query,
  ]);

  // Get the google response.
  $response = $this
    ->getResponse($url
    ->toString());
  return $response;
}