Initial import from local backup (Documents-Playground/pakerpale)
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103
application/core/MY_Security.php
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103
application/core/MY_Security.php
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<?php
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP
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*
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* This content is released under the MIT License (MIT)
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*
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* Copyright (c) 2014 - 2015, British Columbia Institute of Technology
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @package CodeIgniter
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* @author EllisLab Dev Team
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* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/)
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* @copyright Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/)
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* @license http://opensource.org/licenses/MIT MIT License
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* @link http://codeigniter.com
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* @since Version 1.0.0
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* @filesource
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*/
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defined('BASEPATH') OR exit('No direct script access allowed');
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class MY_Security extends CI_Security
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{
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public function csrf_verify()
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{
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// If it's not a POST request we will set the CSRF cookie
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if (strtoupper($_SERVER['REQUEST_METHOD']) !== 'POST')
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{
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return $this->csrf_set_cookie();
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}
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// Check if URI has been whitelisted from CSRF checks
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if ($exclude_uris = config_item('csrf_exclude_uris'))
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{
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$uri = load_class('URI', 'core');
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// assumes /controller/method in your url. adjust as needed.
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$parts = explode("/",$uri->uri_string());
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if (count($parts) >= 2) {
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$class=$parts[0];
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$method=$parts[1];
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foreach ($exclude_uris as $exclude_url_data) {
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if (@$exclude_url_data['controller'] == $class
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&& @$exclude_url_data['method'] == $method) {
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return $this;
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}
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}
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}
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}
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// Do the tokens exist in both the _POST and _COOKIE arrays?
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if ( ! isset($_POST[$this->_csrf_token_name], $_COOKIE[$this->_csrf_cookie_name])
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OR $_POST[$this->_csrf_token_name] !== $_COOKIE[$this->_csrf_cookie_name]) // Do the tokens match?
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{
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$this->csrf_show_error();
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}
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// We kill this since we're done and we don't want to polute the _POST array
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unset($_POST[$this->_csrf_token_name]);
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// Regenerate on every submission?
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if (config_item('csrf_regenerate'))
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{
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// Nothing should last forever
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unset($_COOKIE[$this->_csrf_cookie_name]);
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$this->_csrf_hash = NULL;
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}
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$this->_csrf_set_hash();
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$this->csrf_set_cookie();
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log_message('info', 'CSRF token verified');
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return $this;
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}
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}
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