public static function challenge($problem, $advice, $realm = 'Users')
{
$challenge = 'OAuth realm="' . $realm . '"';
if (!empty($problem)) {
$challenge .= ', oauth_problem="' . Rfc3986::urlEncode($problem) . '"';
}
if (!empty($advice)) {
$challenge .= ', oauth_problem_advice="' . Rfc3986::urlEncode($advice) . '"';
}
return $challenge;
}
/**
* Get the body of a POST with multipart/form-data by Edison tsai on 16:52 2010/09/16
* Used for fetching the post parameters and to calculate the body signature.
*
* @return string null when no body present (or wrong content type for body)
*/
protected function getRequestBodyOfMultipart()
{
$body = null;
if ($this->method == 'POST') {
$body = '';
if (is_array($_POST) && count($_POST) > 1) {
foreach ($_POST as $k => $v) {
$body .= $k . '=' . Rfc3986::urlEncode($v) . '&';
}
if (substr($body, -1) == '&') {
$body = substr($body, 0, strlen($body) - 1);
}
}
}
return $body;
}