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validate token value from csrf token header

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if supplied and not overridden by post request param
This commit is contained in:
glaszig 2019-07-30 17:28:03 +02:00
parent ce3ec131a6
commit 0967a53152
1 changed files with 13 additions and 1 deletions
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14
includes/functions.php
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@ -83,7 +83,19 @@ function CSRFMetaTag()
*/
function CSRFValidate()
{
if (hash_equals($_POST['csrf_token'], $_SESSION['csrf_token'])) {
$post_token = $_POST['csrf_token'];
$header_token = $_SERVER['HTTP_X_CSRF_TOKEN'];
if (empty($post_token) && empty($header_token)) {
return false;
}
$request_token = $post_token;
if (empty($post_token)) {
$request_token = $header_token;
}
if (hash_equals($_SESSION['csrf_token'], $request_token)) {
return true;
} else {
error_log('CSRF violation');