SimpleSAML_Utilities::fetch PHP Méthode

    public static function fetch($path, $context = array(), $getHeaders = false)
    {
        return \SimpleSAML\Utils\HTTP::fetch($path, $context, $getHeaders);
    }

 public function finalStep(&$state)
 {
     SimpleSAML_Logger::debug("oauth wrap:  Using this verification code [" . $state['authwindowslive:wrap_verification_code'] . "]");
     // Retrieve Access Token
     // Documentation at: http://msdn.microsoft.com/en-us/library/ff749686.aspx
     $postData = 'wrap_client_id=' . urlencode($this->key) . '&wrap_client_secret=' . urlencode($this->secret) . '&wrap_callback=' . urlencode(SimpleSAML_Module::getModuleUrl('authwindowslive') . '/linkback.php') . '&wrap_verification_code=' . urlencode($state['authwindowslive:wrap_verification_code']);
     $context = array('http' => array('method' => 'POST', 'header' => 'Content-type: application/x-www-form-urlencoded', 'content' => $postData));
     $result = SimpleSAML_Utilities::fetch('https://consent.live.com/AccessToken.aspx', $context);
     parse_str($result, $response);
     // error checking of $response to make sure we can proceed
     if (!array_key_exists('wrap_access_token', $response)) {
         throw new Exception('[' . $response['error_code'] . '] ' . $response['wrap_error_reason'] . "\r\nNo wrap_access_token returned - cannot proceed\r\n" . $response['internal_info']);
     }
     SimpleSAML_Logger::debug("Got an access token from the OAuth WRAP service provider [" . $response['wrap_access_token'] . "] for user [" . $response['uid'] . "]");
     // Documentation at: http://msdn.microsoft.com/en-us/library/ff751708.aspx
     $opts = array('http' => array('header' => "Accept: application/json\r\nAuthorization: WRAP access_token=" . $response['wrap_access_token'] . "\r\n"));
     $data = SimpleSAML_Utilities::fetch('https://apis.live.net/V4.1/cid-' . $response['uid'] . '/Profiles', $opts);
     $userdata = json_decode($data, TRUE);
     $attributes = array();
     $attributes['windowslive_uid'] = array($response['uid']);
     $attributes['windowslive_targetedID'] = array('http://windowslive.com!' . $response['uid']);
     $attributes['windowslive_user'] = array($response['uid'] . '@windowslive.com');
     if (array_key_exists('Entries', $userdata)) {
         foreach ($userdata['Entries'][0] as $key => $value) {
             if (is_string($value)) {
                 $attributes['windowslive.' . $key] = array((string) $value);
             }
         }
         if (array_key_exists('Emails', $userdata['Entries'][0])) {
             $attributes['windowslive_mail'] = array($userdata['Entries'][0]['Emails'][0]['Address']);
         }
     }
     SimpleSAML_Logger::debug('LiveID Returned Attributes: ' . implode(", ", array_keys($attributes)));
     $state['Attributes'] = $attributes;
 }