mirror of
https://github.com/alextselegidis/easyappointments.git
synced 2024-11-28 02:43:32 +03:00
98 lines
3.1 KiB
PHP
98 lines
3.1 KiB
PHP
<?php defined('BASEPATH') or exit('No direct script access allowed');
|
|
|
|
/* ----------------------------------------------------------------------------
|
|
* Easy!Appointments - Online Appointment Scheduler
|
|
*
|
|
* @package EasyAppointments
|
|
* @author A.Tselegidis <alextselegidis@gmail.com>
|
|
* @copyright Copyright (c) Alex Tselegidis
|
|
* @license https://opensource.org/licenses/GPL-3.0 - GPLv3
|
|
* @link https://easyappointments.org
|
|
* @since v1.4.0
|
|
* ---------------------------------------------------------------------------- */
|
|
|
|
/**
|
|
* Easy!Appointments security.
|
|
*
|
|
* @property EA_Benchmark $benchmark
|
|
* @property EA_Cache $cache
|
|
* @property EA_Calendar $calendar
|
|
* @property EA_Config $config
|
|
* @property EA_DB_forge $dbforge
|
|
* @property EA_DB_query_builder $db
|
|
* @property EA_DB_utility $dbutil
|
|
* @property EA_Email $email
|
|
* @property EA_Encrypt $encrypt
|
|
* @property EA_Encryption $encryption
|
|
* @property EA_Exceptions $exceptions
|
|
* @property EA_Hooks $hooks
|
|
* @property EA_Input $input
|
|
* @property EA_Lang $lang
|
|
* @property EA_Loader $load
|
|
* @property EA_Log $log
|
|
* @property EA_Migration $migration
|
|
* @property EA_Output $output
|
|
* @property EA_Profiler $profiler
|
|
* @property EA_Router $router
|
|
* @property EA_Security $security
|
|
* @property EA_Session $session
|
|
* @property EA_Upload $upload
|
|
* @property EA_URI $uri
|
|
*/
|
|
class EA_Security extends CI_Security {
|
|
/**
|
|
* CSRF Verify
|
|
*
|
|
* @return CI_Security
|
|
*/
|
|
public function csrf_verify()
|
|
{
|
|
// If it's not a POST request we will set the CSRF cookie
|
|
if (strtoupper($_SERVER['REQUEST_METHOD']) !== 'POST')
|
|
{
|
|
return $this->csrf_set_cookie();
|
|
}
|
|
|
|
// Check if URI has been whitelisted from CSRF checks
|
|
if ($exclude_uris = config_item('csrf_exclude_uris'))
|
|
{
|
|
$uri = load_class('URI', 'core');
|
|
foreach ($exclude_uris as $excluded)
|
|
{
|
|
if (preg_match('#^' . $excluded . '$#i' . (UTF8_ENABLED ? 'u' : ''), $uri->uri_string()))
|
|
{
|
|
return $this;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check CSRF token validity, but don't error on mismatch just yet - we'll want to regenerate
|
|
$csrf_token = $_POST[$this->_csrf_token_name] ?? $_SERVER['HTTP_X_CSRF'] ?? NULL;
|
|
|
|
$valid = isset($csrf_token, $_COOKIE[$this->_csrf_cookie_name])
|
|
&& is_string($csrf_token) && is_string($_COOKIE[$this->_csrf_cookie_name])
|
|
&& hash_equals($csrf_token, $_COOKIE[$this->_csrf_cookie_name]);
|
|
|
|
// We kill this since we're done and we don't want to pollute the _POST array
|
|
unset($_POST[$this->_csrf_token_name]);
|
|
|
|
// Regenerate on every submission?
|
|
if (config_item('csrf_regenerate'))
|
|
{
|
|
// Nothing should last forever
|
|
unset($_COOKIE[$this->_csrf_cookie_name]);
|
|
$this->_csrf_hash = NULL;
|
|
}
|
|
|
|
$this->_csrf_set_hash();
|
|
$this->csrf_set_cookie();
|
|
|
|
if ($valid !== TRUE)
|
|
{
|
|
$this->csrf_show_error();
|
|
}
|
|
|
|
log_message('info', 'CSRF token verified');
|
|
return $this;
|
|
}
|
|
}
|