* Actually, important actions should not be triggered by Links / GET-Requests at all, but somethimes they still are,
* so this mechanism brings in some damage control (the attacker would be able to forge a request to a form of this type, but not to forms of other types).
*/
-function get_form_security_token($typename = "") {
+function get_form_security_token($typename = '') {
$a = get_app();
$timestamp = time();
- $sec_hash = hash('whirlpool', $a->user["guid"] . $a->user["prvkey"] . session_id() . $timestamp . $typename);
+ $sec_hash = hash('whirlpool', $a->user['guid'] . $a->user['prvkey'] . session_id() . $timestamp . $typename);
- return $timestamp . "." . $sec_hash;
+ return $timestamp . '.' . $sec_hash;
}
-function check_form_security_token($typename = "", $formname = 'form_security_token') {
+function check_form_security_token($typename = '', $formname = 'form_security_token') {
if (!x($_REQUEST, $formname)) return false;
$hash = $_REQUEST[$formname];
$a = get_app();
- $x = explode(".", $hash);
+ $x = explode('.', $hash);
if (time() > (IntVal($x[0]) + $max_livetime)) return false;
- $sec_hash = hash('whirlpool', $a->user["guid"] . $a->user["prvkey"] . session_id() . $x[0] . $typename);
+ $sec_hash = hash('whirlpool', $a->user['guid'] . $a->user['prvkey'] . session_id() . $x[0] . $typename);
return ($sec_hash == $x[1]);
}
function check_form_security_std_err_msg() {
return t('The form security token was not correct. This probably happened because the form has been opened for too long (>3 hours) before subitting it.') . EOL;
}
-function check_form_security_token_redirectOnErr($err_redirect, $typename = "", $formname = 'form_security_token') {
+function check_form_security_token_redirectOnErr($err_redirect, $typename = '', $formname = 'form_security_token') {
if (!check_form_security_token($typename, $formname)) {
$a = get_app();
+ logger('check_form_security_token failed: user ' . $a->user['guid'] . ' - form element ' . $typename);
+ logger('check_form_security_token failed: _REQUEST data: ' . print_r($_REQUEST, true), LOGGER_DATA);
notice( check_form_security_std_err_msg() );
goaway($a->get_baseurl() . $err_redirect );
}
}
-function check_form_security_token_ForbiddenOnErr($typename = "", $formname = 'form_security_token') {
+function check_form_security_token_ForbiddenOnErr($typename = '', $formname = 'form_security_token') {
if (!check_form_security_token($typename, $formname)) {
+ logger('check_form_security_token failed: user ' . $a->user['guid'] . ' - form element ' . $typename);
+ logger('check_form_security_token failed: _REQUEST data: ' . print_r($_REQUEST, true), LOGGER_DATA);
header('HTTP/1.1 403 Forbidden');
killme();
}