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Diffstat (limited to '')
| -rw-r--r-- | admin/include/functions.php | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/admin/include/functions.php b/admin/include/functions.php index 20cb6e534..0e5a2b5d8 100644 --- a/admin/include/functions.php +++ b/admin/include/functions.php @@ -23,6 +23,28 @@ include(PHPWG_ROOT_PATH.'admin/include/functions_metadata.php'); +/** + * check token comming from form posted or get params to prevent csrf attacks + * if pwg_token is empty action doesn't require token + * else pwg_token is compare to server token + * + * @return void access denied if token given is not equal to server token + */ +function check_token() +{ + global $conf; + + $token = hash_hmac('md5', session_id(), $conf['secret_key']); + + if (!empty($_POST['pwg_token']) && ($_POST['pwg_token'] != $token)) + { + access_denied(); + } + elseif (!empty($_GET['pwg_token']) && ($_GET['pwg_token'] != $token)) + { + access_denied(); + } +} // The function delete_site deletes a site and call the function // delete_categories for each primary category of the site |