function system_check_http_request

7.x system.module	`system_check_http_request()`
6.x system.module	`system_check_http_request()`

Checks whether the server is capable of issuing HTTP requests.

The function sets the drupal_http_request_fail system variable to TRUE if drupal_http_request() does not work and then the system status report page will contain an error.

Return value

TRUE if this installation can issue HTTP requests.

1 call to system_check_http_request()

system_requirements in drupal-7.x/modules/system/system.install: Implements hook_requirements().

File

drupal-7.x/modules/system/system.module, line 3361: Configuration system that lets administrators modify the workings of the site.

Code

function system_check_http_request() {
  // Try to get the content of the front page via drupal_http_request().
  $result = drupal_http_request(url('', array('absolute' => TRUE)), array('max_redirects' => 0));
  // We only care that we get a http response - this means that Drupal
  // can make a http request.
  $works = isset($result->code) && ($result->code >= 100) && ($result->code < 600);
  variable_set('drupal_http_request_fails', !$works);
  return $works;
}