Much Better Now
This commit is contained in:
parent
d6e8a4ccd4
commit
3a2fa4f95e
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@ -0,0 +1,4 @@
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{
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"default_controller":"welcome",
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"debug":true
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}
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<?php if(!defined('APP_ROOT')) exit('No direct script access allowed');
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require_once(APP_ROOT.'/core/Config.php');
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require_once(APP_ROOT.'/core/Helpers.php');
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require_once(APP_ROOT.'/core/Request.php');
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require_once(APP_ROOT.'/core/Security.php');
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require_once(APP_ROOT.'/core/Response.php');
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require_once(APP_ROOT.'/core/Controller.php');
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require_once(APP_ROOT.'/core/Model.php');
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class Anvil {
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public $config;
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public $helpers;
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public $request;
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public $security;
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public $response;
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public $active_controller;
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public function __construct() {
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$this->config = new Config();
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$this->helpers = new Helpers($this);
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$this->request = new Request($this);
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$this->response = new Response($this);
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$this->security = new Security($this);
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}
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/**
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* Strike the Anvil!
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*/
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public function strike() {
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ob_start();
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$uri_array = $this->request->uri_array;
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$class_name = (!isset($uri_array[0]) || empty($uri_array[0]))
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? $this->config->item('default_controller') : array_shift($uri_array);
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$start_token = $this->config->item('starting_token');
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while($start_token-- > 0) { array_shift($uri_array); }
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$cc_name = '';
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if(!file_exists(APP_ROOT.'/controllers/'.$class_name.'_controller.php')) {
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$class_name = $this->config->item('default_controller');
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}
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$cc_name = $class_name.'_controller';
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$this->active_controller = $class_name;
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// Ok, pull in the requested Controller
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require_once(APP_ROOT.'/controllers/'.$cc_name.'.php');
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$c_class = new $cc_name($this);
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$c_class->index();
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// The controller should take care of the rest.
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ob_end_flush();
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}
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}
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@ -0,0 +1,52 @@
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<?php if(!defined('APP_ROOT')) exit('No direct script access allowed');
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class Config {
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private $config_file;
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private $_items = array();
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public function __construct() {
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$this->config_file = APP_ROOT.'/config.json';
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if(file_exists($this->config_file)) {
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$cfg_raw = file_get_contents($this->config_file);
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$this->_items = json_decode($cfg_raw, TRUE);
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}
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$this->_checkSetDefault('starting_token', 0);
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$this->_checkSetDefault('charset', 'UTF-8');
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$this->_checkSetDefault('csrf_protection', TRUE);
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$this->_checkSetDefault('global_models', array());
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$this->_checkSetDefault('global_libraries', array());
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}
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/**
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* Checks to see if $this->_items[$key] is set,
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* If not, sets it to $val
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*/
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private function _checkSetDefault($key, $val) {
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if(!isset($this->_items[$key])) {
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$this->_items[$key] = $val;
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}
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}
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public function item($key=NULL, $val=NULL) {
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if(is_array($key)) {
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foreach($key as $k => $v) {
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$this->item($k, $v);
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}
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}
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if(isset($key)) {
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if(isset($val)) {
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// Setting
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$this->_items[$key] = $val;
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}
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if(isset($this->_items[$key])) {
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return $this->_items[$key];
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}
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}
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return FALSE;
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}
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public function items() {
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return $this->_items;
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}
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}
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@ -1,7 +1,31 @@
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<?php
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class Controller {
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public function __construct() { }
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protected $anvil;
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public $default_function = '';
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public function __construct($a) {
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$this->anvil = $a;
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}
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public function index() {
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$func_name = $this->default_function;
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if(isset($this->anvil->request->uri_array[0])) {
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if($this->anvil->request->uri_array[0] == $this->anvil->active_controller) {
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if(isset($this->anvil->request->uri_array[1])) {
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$func_name = $this->anvil->request->uri_array[1];
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}
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} else if(!empty($this->anvil->request->uri_array[0])) {
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$func_name = $this->anvil->request->uri_array[0];
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}
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}
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if(method_exists($this, $func_name)) {
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return $this->$func_name();
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} else {
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header("HTTP/1.0 404 Not Found");
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echo "Page Not Found";
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exit;
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}
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}
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public function load_models($model=NULL) {
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$this->load_model($model);
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<?php if(!defined('APP_ROOT')) exit('No direct script access allowed');
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/** A bunch of Helper Functions */
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class Helpers {
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private $_anvil;
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public function __construct($a) {
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$_anvil = $a;
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}
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/**
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* Remove Invisible Characters
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* This prevents sandwiching null characters
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* between ascii characters, like Java\0script.
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*
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* @access public
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* @param string
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* @return string
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*/
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public function remove_invisible_characters($str, $url_encoded = TRUE) {
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$non_displayables = array();
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// Ever control char except newline (dec 10)
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// carriage return (dec 13), and horizontal tab (dec 09)
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if($url_encoded) {
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$non_displayables[] = '/%0[0-8bcef]/'; // url encoded 00-08, 11, 12, 14, 15
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$non_displayables[] = '/%1[0-9a-f]/'; // url encoded 16-31
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}
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$non_displayables[] = '/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]+/S'; // 00-08, 11, 12, 14-31, 127
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do {
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$str = preg_replace($non_displayables, '', $str, -1, $count);
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} while($count);
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return $str;
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}
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/**
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* Returns HTML escaped variables
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*
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* @access public
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* @param mixed
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* @return mixed
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*/
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public function html_escape($var) {
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if(is_array($var)) {
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foreach($var as &$v) {
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$v = $this->html_escape($v);
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}
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} else {
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return htmlspecialchars($var, ENT_QUOTES, $this->_anvil->config->item('charset'));
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}
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}
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}
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<?php
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/* The URI Library is necessary for the framework
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* to succesfully route
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*/
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class Request {
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public $type;
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public $parameters;
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public $cookie;
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public $files;
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public $server;
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public $uri_array;
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private $_anvil;
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private static $request_params = null;
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public function __construct($a) {
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$this->_anvil = $a;
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$this->createFromGlobals();
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}
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public function createFromGlobals() {
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$this->type = strtoupper($_SERVER['REQUEST_METHOD']);
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if($this->type == 'GET') {
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$this->parameters = $_GET;
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} else {
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$this->parameters = $this->process_data();
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}
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$this->cookie = $_COOKIE;
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$this->files = $_FILES;
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$this->server = $_SERVER;
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$this->uri_array = $this->uriToArray();
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}
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/** Is this an HTTPS request? */
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public function isSecure() {
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return !(!isset($this->server['HTTPS'])
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|| empty($this->server['HTTPS'])
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|| strtolower($this->server['HTTPS']) === 'off');
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}
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/** Pull the JSON Payload **/
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public function json() {
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if(!self::$request_params) {
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$payload = file_get_contents('php://input');
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if(is_array($payload)) {
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self::$request_params = $payload;
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} else if((substr($payload, 0, 1) == "{")
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&& (substr($payload, (strlen($payload)-1), 1) == "}")) {
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self::$request_params = json_decode($payload);
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} else {
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parse_str($payload, self::$request_params);
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}
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}
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return (object)self::$request_params;
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}
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public function post($index=NULL, $xss_clean=FALSE) {
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return $this->process_data($index, $xss_clean);
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}
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public function put($index=NULL, $xss_clean=FALSE) {
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return $this->process_data($index, $xss_clean);
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}
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public function patch($index=NULL, $xss_clean=FALSE) {
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return $this->process_data($index, $xss_clean);
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}
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public function delete($index=NULL, $xss_clean=FALSE) {
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return $this->process_data($index, $xss_clean);
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}
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public function process_data($index=NULL, $xss_clean=FALSE) {
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$request_vars = (array)$this->json();
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if($index==NULL && !empty($request_vars)) {
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$post = array();
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foreach(array_keys($request_vars) as $key) {
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$post[$key] = $this->_fetch_from_array($request_vars, $key, $xss_clean);
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}
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return $post;
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}
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return $this->_fetch_from_array($request_vars, $index, $xss_clean);
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}
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private function _fetch_from_array(&$array, $index = '', $xss_clean = FALSE) {
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if(!isset($array[$index])) {
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return FALSE;
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}
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if($xss_clean === TRUE) {
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}
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return $array[$index];
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}
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public function setCookie($key, $val, $expire=0, $path='/', $domain=NULL, $secure=0) {
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if($expire == 'never') {
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// We can't do never... Set it to 10 years, should be good enough.
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$expire = time()+60*60*24*365*10;
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}
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if(!isset($path) && ($this->_anvil->config->item('cookie_path') !== FALSE)) {
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$path = $this->_anvil->config->item('cookie_path');
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}
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if(!isset($domain)) {
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if($this->_anvil->config->item('cookie_domain') !== FALSE) {
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$domain = $this->_anvil->config->item('cookie_domain');
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} else {
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$domain = $this->_anvil->request->server['HTTP_HOST'];
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}
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}
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setcookie($key, $val, $expire, $path, $domain, $secure);
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}
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public function clearCookie($key) {
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$this->setCookie($key, '', time()-3600*24*365);
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}
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/**
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* URI Parsing Functions
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*/
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public function uriToArray($st = 0, $uri=NULL) {
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$uri = (isset($uri)?$uri:$this->server['REQUEST_URI']);
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if(substr($uri,0,10)=='/index.php') {
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$uri = substr($uri,10);
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}
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$uri=substr($uri,1);
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$uri_array = preg_split('^[\/\?]^', $uri);
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$uri_array = array_slice($uri_array, $st);
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return $uri_array;
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}
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/**
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* Parse URI into key=>value pairs
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*/
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public function uriToPairs($st = 0, $uri=NULL) {
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$uri = (isset($uri)?$uri:$this->server['REQUEST_URI']);
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$uri_array = $this->uriToArray($st, $uri);
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$pair_array = array();
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$key = '';
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foreach($uri_array as $a_val) {
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if(empty($key)) {
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$key = $a_val;
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} else {
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$pair_array[$key] = $a_val;
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$key = '';
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}
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}
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if(!empty($key)) {
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$pair_array[$key] = '';
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}
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return $pair_array;
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}
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}
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?>
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@ -0,0 +1,16 @@
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<?php
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class Response {
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private $_anvil;
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public function __construct($a) {
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$this->_anvil = $a;
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}
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public function redirect($url) {
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header('Location: '.$url);
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}
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}
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?>
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@ -0,0 +1,546 @@
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<?php if(!defined('APP_ROOT')) exit('No direct script access allowed');
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/** Security Class
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* Pretty heavily based on the CodeIgniter Security Class
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*/
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class Security {
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/* Random Hash for protecting URLs */
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protected $_xss_hash = '';
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/* Random Hash for Cross-Site Request Forgery Protection Cookie (CSRFPC) */
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protected $_csrf_hash = '';
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/* Expiration time for CSRFPC */
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protected $_csrf_expire = 7200;
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/* Token name for CSRFPC */
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protected $_csrf_token_name = 'anvil_csrf_token';
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/* Cookie name for CSRFPC */
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protected $_csrf_cookie_name = 'anvil_csrf_token';
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/* List of never allowed strings */
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protected $_never_allowed_str = array(
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'document.cookie' => '[removed]',
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'document.write' => '[removed]',
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'.parentNode' => '[removed]',
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'.innerHTML' => '[removed]',
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'window.location' => '[removed]',
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'-moz-binding' => '[removed]',
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'<!--' => '<!--',
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'-->' => '-->',
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'<![CDATA[' => '<![CDATA[',
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'<comment>' => '<comment>'
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);
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/* List of never allowed regex replacement */
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protected $_never_allowed_regex = array(
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'javascript\s*:',
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'expression\s*(\(|&\#40;)', // CSS and IE
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'vbscript\s*:', // IE, surprise!
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'Redirect\s+302',
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"([\"'])?data\s*:[^\\1]*?base64[^\\1]*?,[^\\1]*?,[^\\1]*?\\1?"
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);
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protected $_anvil;
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/* Constructor */
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public function __construct($a) {
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$this->_anvil = $a;
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// Is CSRF protection enabled?
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if($this->_anvil->config->item('csrf_protection')===TRUE) {
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// Set the CSRF hash
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$this->_csrf_set_hash();
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}
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// Security class initialized
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}
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/**
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* Verify CSRF Protection
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*/
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public function csrf_verify() {
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// If it's not a POST request we will set the CSRF cookie
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if($this->_anvil->request->type !== 'POST') {
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return $this->csrf_set_cookie();
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}
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|
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// Do the tokens exist in both the POST params and COOKIE array?
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if(isset($this->_anvil->request->parameters[$this->_csrf_token_name],
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$this->_anvil->cookie[$this->_csrf_cookie_name])) {
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$this->csrf_show_error();
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}
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// Do the tokens match?
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if($this->_anvil->request->parameters[$this->_csrf_token_name] !=
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$this->_anvil->request->cookie[$this->_csrf_cookie_name]) {
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$this->csrf_show_error();
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}
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// We kill this since we're done and we don't want to polute the POST array
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unset($this->_anvil->request->parameters[$this->_csrf_token_name]);
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// None of these things should last forever
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unset($this->_anvil->request->cookie[$this->_csrf_cookie_name]);
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$this->_csrf_set_hash();
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$this->csrf_set_cookie();
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||||
|
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return $this;
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||||
}
|
||||
|
||||
/** Set CSRF Protection Cookie */
|
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public function csrf_set_cookie() {
|
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$expire = time() + $this->_csrf_expire;
|
||||
$secure_cookie = ($this->_anvil->config->item('cookie_secure') === TRUE ? 1 : 0);
|
||||
if($secure_cookie && !$this->_anvil->request->isSecure()) {
|
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return FALSE;
|
||||
}
|
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|
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$this->_anvil->request->setCookie($this->_csrf_cookie_name, $this->_csrf_hash, $expire, NULL, NULL, $secure_cookie);
|
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return $this;
|
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}
|
||||
|
||||
/* Get CSRF Hash */
|
||||
public function get_csrf_hash() {
|
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return $this->_csrf_hash;
|
||||
}
|
||||
|
||||
/* Get CSRF Token Name */
|
||||
public function get_csrf_token_name() {
|
||||
return $this->_csrf_token_name;
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||||
}
|
||||
|
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/**
|
||||
* XSS Clean
|
||||
* Sanitizes data so that CSS hacks can be prevented.
|
||||
* This function does a fair amount of work but it is
|
||||
* extremely thorough, designed to prevent even the
|
||||
* most obscure XSS attempts. Nothing is ever 100%
|
||||
* foolproof, of course, but I haven't been able to
|
||||
* get anything passed the filter.
|
||||
*
|
||||
* Note: This function should only be used to deal
|
||||
* with data upon submission. It's not something that
|
||||
* should be used for general runtime processing.
|
||||
*
|
||||
* @param mixed string or array
|
||||
* @param bool
|
||||
* @return string
|
||||
*/
|
||||
public function xss_clean($str, $is_image = FALSE) {
|
||||
/* Is the string an array? */
|
||||
if(is_array($str)) {
|
||||
while(list($key) = each($str)) {
|
||||
$str[$key] = $this->xss_clean($str[$key]);
|
||||
}
|
||||
return $str;
|
||||
}
|
||||
|
||||
/* Remove Invisible Characters */
|
||||
$str = remove_invisible_characters($str);
|
||||
|
||||
/* Validate Entities in URLs */
|
||||
$str = $this->_validate_entities($str);
|
||||
|
||||
/* URL Decode
|
||||
* Note: Use rawurldecode() so it does not remove plus signs
|
||||
*/
|
||||
$str = rawurldecode($str);
|
||||
|
||||
/* Convert character entities to ASCII
|
||||
* This permits our tests below to work reliably
|
||||
* We only convert entities that are within tags since
|
||||
* these are the ones that will pose security problems
|
||||
*/
|
||||
$str = preg_replace_callback("/[a-z]+=([\'\"]).*?\\1/si", array($this, '_convert_attribute'), $str);
|
||||
$str = preg_replace_callback("/<\w+.*?(?=>|<|$)/si", array($this, '_decode_entity'), $str);
|
||||
|
||||
/* Remove Invisible Characters AGAIN! */
|
||||
$str = remove_invisible_characters($str);
|
||||
|
||||
/* Convert all tabs to spaces
|
||||
* This prevents strings like this: ja vascript
|
||||
* NOTE: we deal with spaces between characters later.
|
||||
* NOTE: preg_replace was found to be amazingly slow here on
|
||||
* large blocks of data, so we use str_replace.
|
||||
*/
|
||||
if(strpos($str, "\t") !== FALSE) {
|
||||
$str = str_replace("\t", ' ', $str);
|
||||
}
|
||||
|
||||
/* Capture converted string for later comparison */
|
||||
$converted_string = $str;
|
||||
|
||||
/* Remove Strings that are never allowed */
|
||||
$str = $this->_do_never_allowed($str);
|
||||
|
||||
/* Makes PHP tags safe
|
||||
* Note: XML tags are inadvertently replaced too:
|
||||
* <?xml
|
||||
* But it doesn't seem to pose a problem.
|
||||
*/
|
||||
if($is_image === TRUE) {
|
||||
/* Images have a tendency to have the PHP short opening and
|
||||
* closing tags every so often so we skip those and only
|
||||
* do the long opening tags.
|
||||
*/
|
||||
$str = preg_replace('/<\?(php)/i', "<?\\1", $str);
|
||||
} else {
|
||||
$str = str_replace(array('<?', '?'.'>'), array('<?', '?>'), $str);
|
||||
}
|
||||
|
||||
/* Compact any exploded words
|
||||
* This corrects words like: j a v a s c r i p t
|
||||
* These words are compacted back to their correct state.
|
||||
*/
|
||||
$words = array(
|
||||
'javascript', 'expression', 'vbscript', 'script', 'base64',
|
||||
'applet', 'alert', 'document', 'write', 'cookie', 'window'
|
||||
);
|
||||
|
||||
foreach($words as $word) {
|
||||
$temp = '';
|
||||
for($i = 0, $wordlen = strlen($word); $i < $wordlen; $i++) {
|
||||
$temp .= substr($word, $i, 1)."\s*";
|
||||
}
|
||||
|
||||
// We only want to do this when it is followed by a non-word character
|
||||
// That way valid stuff like "dealer to" does not become "dealerto"
|
||||
$str = preg_replace_callback('#('.substr($temp, 0, -3).')(\W)#is', array($this, '_compact_exploded_words'), $str);
|
||||
}
|
||||
|
||||
/* Remove disallowed Javascript in links or img tags */
|
||||
do {
|
||||
$original = $str;
|
||||
if(preg_match("/<a/i", $str)) {
|
||||
$str = preg_replace_callback("#<a\s+([^>]*?)(>|$)#si", array($this, '_js_link_removal'), $str);
|
||||
}
|
||||
if(preg_match("/<img/i", $str)) {
|
||||
$str = preg_replace_callback("#<img\s+([^>]*?)(\s?/?\>|$)#si", array($this, '_js_img_removal'), $str);
|
||||
}
|
||||
if(preg_match("/script/i", $str) || preg_match("/xss/i", $str)) {
|
||||
$str = preg_replace("#<(/*)(script|xss)(.*?)\>#si", '[removed]', $str);
|
||||
}
|
||||
} while($original != $str);
|
||||
unset($original);
|
||||
|
||||
// Remove evil attributes such as style, onclick and xmlns
|
||||
$str = $this->_remove_evil_attributes($str, $is_image);
|
||||
|
||||
/* Sanitize naughty HTML elements
|
||||
* If a tag containing any of the words in the list
|
||||
* below is found, the tag gets converted to entities.
|
||||
* so this: <blink>
|
||||
* becoms: <blink>
|
||||
*/
|
||||
$naughty = 'alert|applet|audio|basefont|base|behavior|bgsound|blink|body|embed|expression|form|frameset|frame|head|html|ilayer|iframe|input|isindex|layer|link|meta|object|plaintext|style|script|textarea|title|video|xml|xss';
|
||||
$str = preg_replace_callback('#<(/*\s*)('.$naughty.')([^><]*)([><]*)#is', array($this, '_sanitize_naughty_html'), $str);
|
||||
|
||||
/* Sanitize naughty scripting elements
|
||||
* Similar to above, only instead of looking for
|
||||
* tags it looks for PHP and JavaScript commands
|
||||
* that are disallowed. Rather than removing the
|
||||
* code, it simply converts the parenthesis to
|
||||
* entities rendering the code un-executable.
|
||||
* so this: eval('some code')
|
||||
* becomes: eval('some code')
|
||||
*/
|
||||
$str = preg_replace('#(alert|cmd|passthru|eval|exec|expression|system|fopen|fsockopen|file|file_get_contents|readfile|unlink)(\s*)\((.*?)\)#si', "\\1\\2(\\3)", $str);
|
||||
|
||||
/* Final clean up
|
||||
* This adds a bit of extra precaution in case
|
||||
* something got through the above filters
|
||||
*/
|
||||
$str = $this->_do_never_allowed($str);
|
||||
|
||||
/* Images are handled in a special way
|
||||
* - Essentially, we want to know that after all of the character
|
||||
* conversion is done whether any unwanted, likely XSS, code was found.
|
||||
* If not, we return TRUE, as the image is clean.
|
||||
* However, if the string post-conversion does not match the
|
||||
* string post-removal of XSS, then it fails, as there was unwanted XSS
|
||||
* code found and removed/changed during processing
|
||||
*/
|
||||
if($is_image === TRUE) {
|
||||
return ($str == $converted_string)?TRUE:FALSE;
|
||||
}
|
||||
|
||||
return $str;
|
||||
}
|
||||
|
||||
/**
|
||||
* Random Hash for protecting URLs
|
||||
* @return string
|
||||
*/
|
||||
public function xss_hash() {
|
||||
if($this->_xss_hash == '') {
|
||||
mt_srand();
|
||||
$this->_xss_hash = md5(time() + mt_rand(0, 1999999999));
|
||||
}
|
||||
return $this->_xss_hash;
|
||||
}
|
||||
|
||||
/**
|
||||
* HTML Entities Decode
|
||||
* This function is a replacement for html_entity_decode()
|
||||
* The reason we are not using html_entity_decode() by itself is
|
||||
* because while it is not technically correct to leave out the
|
||||
* semicolon at the end of an entity most browsers will still interpret
|
||||
* the entity correctly. html_entity_decode() does not convert entities
|
||||
* without semicolons, so we are left with our own little solution here.
|
||||
*
|
||||
* @param string
|
||||
* @param string
|
||||
* @return string
|
||||
*/
|
||||
public function entity_decode($str, $charset='UTF-8') {
|
||||
if(stristr($str, '&') === FALSE) {
|
||||
return $str;
|
||||
}
|
||||
$str = html_entity_decode($str, ENT_COMPAT, $charset);
|
||||
$str = preg_replace('~&#x(0*[0-9a-f]{2,5})~ei', 'chr(hexdec("\\1"))', $str);
|
||||
return preg_replace('~&#([0-9]{2,4})~e', 'chr(\\1)', $str);
|
||||
}
|
||||
|
||||
/**
|
||||
* Filename Security
|
||||
*
|
||||
* @param string
|
||||
* @param bool
|
||||
* @return string
|
||||
*/
|
||||
public function sanitize_filename($str, $relative_path = FALSE) {
|
||||
$bad = array( "../", "<!--", "-->", "<",
|
||||
">", "'", '"', '&', '$', '#',
|
||||
'{', '}', '[', ']', '=', ';',
|
||||
'?', "%20", "%22", "%3c", "%253c",
|
||||
"%3e", "%0e", "%28", "%29", "%2528",
|
||||
"%26", "%24", "%3f", "%3b", "%3d"
|
||||
);
|
||||
|
||||
if(!$relateive_path) {
|
||||
$bad[] = './';
|
||||
$bad[] = '/';
|
||||
}
|
||||
$str = remove_invisible_characters($str, FALSE);
|
||||
return stripslashes(str_replace($bad, '', $str));
|
||||
}
|
||||
|
||||
/**
|
||||
* Compact Exploded Words
|
||||
* Callback function for xss_clean() to remove whitespace from
|
||||
* things like j a v a s c r i p t
|
||||
*
|
||||
* @param type
|
||||
* @return type
|
||||
*/
|
||||
protected function _compact_exploded_words($matches) {
|
||||
return preg_replace('/\s+/s', '', $matches[1]).$matches[2];
|
||||
}
|
||||
|
||||
/**
|
||||
* Remove Evil HTML Attributes (like eventhandlers and style)
|
||||
* Removes the evil attribute and either:
|
||||
* - Everything up until a space
|
||||
* For example, everything between the pipes:
|
||||
* <a |style=document.write('hello');alert('world');| class=link>
|
||||
* - Everything inside the quotes
|
||||
* For example, everything between the pipes:
|
||||
* <a |style="document.write('hello'); alert('world');"| class="link">
|
||||
*
|
||||
* @param string $str The string to check
|
||||
* @param boolean $is_image TRUE if this is an image
|
||||
* @return string The string with the evil attributes removed
|
||||
*/
|
||||
protected function _remove_evil_attributes($str, $is_image) {
|
||||
// All javascript event handlers (e.g. onload, onclick, onmouseover), style, and xmlns
|
||||
$evil_attributes = array('on\w*', 'style', 'xmlns', 'formaction');
|
||||
if($is_image===TRUE) {
|
||||
/* Adobe Photoshop puts XML metadata into JFIF images,
|
||||
* including namespacing, so we have to allow this for images.
|
||||
*/
|
||||
unset($evil_attributes[array_search('xmlns', $evil_attributes)]);
|
||||
}
|
||||
do {
|
||||
$count = 0;
|
||||
$attribs = array();
|
||||
// Find occurrences of illegal attribute string with quotes (042 and 047 are octal quotes)
|
||||
preg_match_all('/('.implode('|', $evil_attributes).')\s*=\s*(\042|\047)([^\\2]*?)(\\2)/is', $str, $matches, PREG_SET_ORDER);
|
||||
|
||||
foreach ($matches as $attr) {
|
||||
$attribs[] = preg_quote($attr[0], '/');
|
||||
}
|
||||
|
||||
// find occurrences of illegal attribute strings without quotes
|
||||
preg_match_all('/('.implode('|', $evil_attributes).')\s*=\s*([^\s>]*)/is', $str, $matches, PREG_SET_ORDER);
|
||||
|
||||
foreach ($matches as $attr) {
|
||||
$attribs[] = preg_quote($attr[0], '/');
|
||||
}
|
||||
|
||||
// replace illegal attribute strings that are inside an html tag
|
||||
if (count($attribs) > 0) {
|
||||
$str = preg_replace('/(<?)(\/?[^><]+?)([^A-Za-z<>\-])(.*?)('.implode('|', $attribs).')(.*?)([\s><]?)([><]*)/i', '$1$2 $4$6$7$8', $str, -1, $count);
|
||||
}
|
||||
} while($count);
|
||||
|
||||
return $str;
|
||||
}
|
||||
|
||||
/**
|
||||
* Sanitize Naughty HTML
|
||||
* Callback function for xss_clean() to remove naughty HTML elements
|
||||
*
|
||||
* @param array
|
||||
* @return string
|
||||
*/
|
||||
protected function _sanitize_naughty_html($matches) {
|
||||
// encode opening brace
|
||||
$str = '<'.$matches[1].$matches[2].$matches[3];
|
||||
|
||||
// encode captured opening or closing brace to prevent recursive vectors
|
||||
$str .= str_replace(array('>', '<'), array('>', '<'),
|
||||
$matches[4]);
|
||||
return $str;
|
||||
}
|
||||
|
||||
/**
|
||||
* JS Link Removal
|
||||
* Callback function for xss_clean() to sanitize links
|
||||
* This limits the PCRE backtracks, making it more performance friendly
|
||||
* and prevents PREG_BACKTRACK_LIMIT_ERROR from being triggered in
|
||||
* PHP 5.2+ on link-heavy strings
|
||||
*
|
||||
* @param array
|
||||
* @return string
|
||||
*/
|
||||
protected function _js_link_removal($match) {
|
||||
return str_replace(
|
||||
$match[1],
|
||||
preg_replace(
|
||||
'#href=.*?(alert\(|alert&\#40;|javascript\:|livescript\:|mocha\:|charset\=|window\.|document\.|\.cookie|<script|<xss|data\s*:)#si',
|
||||
'',
|
||||
$this->_filter_attributes(str_replace(array('<', '>'), '', $match[1]))
|
||||
),
|
||||
$match[0]
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* JS Image Removal
|
||||
* Callback function for xss_clean() to sanitize image tags
|
||||
* This limits the PCRE backtracks, making it more performance friendly
|
||||
* and prevents PREG_BACKTRACK_LIMIT_ERROR from being triggered in
|
||||
* PHP 5.2+ on image tag heavy strings
|
||||
*
|
||||
* @param array
|
||||
* @return string
|
||||
*/
|
||||
protected function _js_img_removal($match) {
|
||||
return str_replace(
|
||||
$match[1],
|
||||
preg_replace(
|
||||
'#src=.*?(alert\(|alert&\#40;|javascript\:|livescript\:|mocha\:|charset\=|window\.|document\.|\.cookie|<script|<xss|base64\s*,)#si',
|
||||
'',
|
||||
$this->_filter_attributes(str_replace(array('<', '>'), '', $match[1]))
|
||||
),
|
||||
$match[0]
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Attribute Conversion
|
||||
* Used as a callback for XSS Clean
|
||||
*
|
||||
* @param array
|
||||
* @return string
|
||||
*/
|
||||
protected function _convert_attribute($match) {
|
||||
return str_replace(array('>', '<', '\\'), array('>', '<', '\\\\'), $match[0]);
|
||||
}
|
||||
|
||||
/**
|
||||
* Filter Attributes
|
||||
* Filters tag attributes for consistency and safety
|
||||
*
|
||||
* @param string
|
||||
* @return string
|
||||
*/
|
||||
protected function _filter_attributes($str) {
|
||||
$out = '';
|
||||
|
||||
if (preg_match_all('#\s*[a-z\-]+\s*=\s*(\042|\047)([^\\1]*?)\\1#is', $str, $matches)) {
|
||||
foreach ($matches[0] as $match) {
|
||||
$out .= preg_replace("#/\*.*?\*/#s", '', $match);
|
||||
}
|
||||
}
|
||||
|
||||
return $out;
|
||||
}
|
||||
|
||||
/**
|
||||
* HTML Entity Decode Callback
|
||||
* Used as a callback for XSS Clean
|
||||
*
|
||||
* @param array
|
||||
* @return string
|
||||
*/
|
||||
protected function _decode_entity($match) {
|
||||
return $this->entity_decode($match[0], strtoupper(config_item('charset')));
|
||||
}
|
||||
|
||||
/**
|
||||
* Validate URL entities
|
||||
* Called by xss_clean()
|
||||
*
|
||||
* @param string
|
||||
* @return string
|
||||
*/
|
||||
protected function _validate_entities($str) {
|
||||
/* Protect GET variables in URLs */
|
||||
// 901119URL5918AMP18930PROTECT8198
|
||||
$str = preg_replace('|\&([a-z\_0-9\-]+)\=([a-z\_0-9\-]+)|i', $this->xss_hash()."\\1=\\2", $str);
|
||||
/* Validate standard character entities
|
||||
* Add a semicolon if missing. We do this to enable
|
||||
* the conversion of entities to ASCII later.
|
||||
*/
|
||||
$str = preg_replace('#(&\#?[0-9a-z]{2,})([\x00-\x20])*;?#i', "\\1;\\2", $str);
|
||||
/* Validate UTF16 two byte encoding (x00)
|
||||
* Just as above, adds a semicolon if missing.
|
||||
*/
|
||||
$str = preg_replace('#(&\#x?)([0-9A-F]+);?#i',"\\1\\2;",$str);
|
||||
/* Un-Protect GET variables in URLs */
|
||||
$str = str_replace($this->xss_hash(), '&', $str);
|
||||
|
||||
return $str;
|
||||
}
|
||||
|
||||
/**
|
||||
* Do Never Allowed
|
||||
* A utility function for xss_clean()
|
||||
*
|
||||
* @param string
|
||||
* @return string
|
||||
*/
|
||||
protected function _do_never_allowed($str) {
|
||||
$str = str_replace(array_keys($this->_never_allowed_str), $this->_never_allowed_str, $str);
|
||||
foreach ($this->_never_allowed_regex as $regex) {
|
||||
$str = preg_replace('#'.$regex.'#is', '[removed]', $str);
|
||||
}
|
||||
return $str;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set Cross Site Request Forgery Protection Cookie
|
||||
*
|
||||
* @return string
|
||||
*/
|
||||
protected function _csrf_set_hash() {
|
||||
if ($this->_csrf_hash == '') {
|
||||
// If the cookie exists we will use it's value.
|
||||
// We don't necessarily want to regenerate it with
|
||||
// each page load since a page could contain embedded
|
||||
// sub-pages causing this feature to fail
|
||||
if (isset($_COOKIE[$this->_csrf_cookie_name]) &&
|
||||
preg_match('#^[0-9a-f]{32}$#iS', $_COOKIE[$this->_csrf_cookie_name]) === 1) {
|
||||
return $this->_csrf_hash = $_COOKIE[$this->_csrf_cookie_name];
|
||||
}
|
||||
|
||||
return $this->_csrf_hash = md5(uniqid(rand(), TRUE));
|
||||
}
|
||||
return $this->_csrf_hash;
|
||||
}
|
||||
}
|
||||
58
index.php
58
index.php
|
|
@ -1,58 +0,0 @@
|
|||
<?php
|
||||
|
||||
define("PHP_ROOT","");
|
||||
define("APP_ROOT","app");
|
||||
|
||||
require_once(APP_ROOT.'/config.php');
|
||||
|
||||
// Load up the base classes
|
||||
require_once(APP_ROOT.'/core/Controller.php');
|
||||
require_once(APP_ROOT.'/core/Model.php');
|
||||
// We need the uri library for things to work
|
||||
require_once(APP_ROOT.'/core/uri_library.php');
|
||||
// Load up the globals
|
||||
foreach($global_libraries as $alib) {
|
||||
require_once(APP_ROOT.'/libraries/'.$alib.'_library.php');
|
||||
}
|
||||
foreach($global_models as $amod) {
|
||||
require_once(APP_ROOT.'/models/'.$amod.'_model.php');
|
||||
}
|
||||
// Buffer all output for speed!
|
||||
ob_start();
|
||||
|
||||
$uri = new Uri_library($_SERVER['REQUEST_URI']);
|
||||
$uri_array = $uri->getFullArray();
|
||||
|
||||
$class_name = (!isset($uri_array[0]) || empty($uri_array[0]))?$default_controller:array_shift($uri_array);
|
||||
|
||||
while($starting_token-- > 0) { array_shift($uri_array); }
|
||||
// Check if $uri->getItem(0) is a controller
|
||||
if(file_exists(APP_ROOT.'/controllers/'.$class_name.'_controller.php')) {
|
||||
// File exists, set the cc_name and pop the uri_array
|
||||
$cc_name = $class_name."_controller";
|
||||
} else {
|
||||
// Not a valid controller, so 404d!
|
||||
header("HTTP/1.0 404 Not Found");
|
||||
echo "Page Not Found";
|
||||
exit;
|
||||
// $cc_name = $default_controller."_controller";
|
||||
}
|
||||
// Pull in the requested Controller
|
||||
require_once(APP_ROOT.'/controllers/'.$cc_name.'.php');
|
||||
|
||||
$c_class = new $cc_name;
|
||||
// Were we provided a method?
|
||||
$c_func = (!isset($uri_array[0]) || empty($uri_array[0]))?"index":array_shift($uri_array);
|
||||
if($c_func!==false && method_exists($c_class, $c_func)) {
|
||||
call_user_func_array(array($c_class, $c_func), $uri_array);
|
||||
} else {
|
||||
// Nope, hit the controller's index
|
||||
if(method_exists($c_class, 'index')) {
|
||||
call_user_func_array(array($c_class, "index"), $uri_array);
|
||||
}
|
||||
}
|
||||
|
||||
// Flush the buffer
|
||||
ob_end_flush();
|
||||
|
||||
?>
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
<?php
|
||||
|
||||
define("PHP_ROOT","../");
|
||||
define("APP_ROOT","../app");
|
||||
|
||||
require_once(APP_ROOT.'/core/Anvil.php');
|
||||
$anvil = new Anvil();
|
||||
$anvil->strike();
|
||||
|
||||
return;
|
||||
Loading…
Reference in New Issue