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-rwxr-xr-xsystem/core/Input.php166
1 files changed, 63 insertions, 103 deletions
diff --git a/system/core/Input.php b/system/core/Input.php
index 3cbbe787f..ee15f4013 100755
--- a/system/core/Input.php
+++ b/system/core/Input.php
@@ -1,13 +1,13 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
* An open source application development framework for PHP 5.1.6 or newer
*
* NOTICE OF LICENSE
- *
+ *
* Licensed under the Open Software License version 3.0
- *
+ *
* This source file is subject to the Open Software License (OSL 3.0) that is
* bundled with this package in the files license.txt / license.rst. It is
* also available through the world wide web at this URL:
@@ -18,15 +18,13 @@
*
* @package CodeIgniter
* @author EllisLab Dev Team
- * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/)
+ * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
* @link http://codeigniter.com
* @since Version 1.0
* @filesource
*/
-// ------------------------------------------------------------------------
-
/**
* Input Class
*
@@ -45,39 +43,39 @@ class CI_Input {
*
* @var string
*/
- var $ip_address = FALSE;
+ public $ip_address = FALSE;
/**
* user agent (web browser) being used by the current user
*
* @var string
*/
- var $user_agent = FALSE;
+ public $user_agent = FALSE;
/**
* If FALSE, then $_GET will be set to an empty array
*
* @var bool
*/
- var $_allow_get_array = TRUE;
+ protected $_allow_get_array = TRUE;
/**
* If TRUE, then newlines are standardized
*
* @var bool
*/
- var $_standardize_newlines = TRUE;
+ protected $_standardize_newlines = TRUE;
/**
* Determines whether the XSS filter is always active when GET, POST or COOKIE data is encountered
* Set automatically based on config setting
*
* @var bool
*/
- var $_enable_xss = FALSE;
+ protected $_enable_xss = FALSE;
/**
* Enables a CSRF cookie token to be set.
* Set automatically based on config setting
*
* @var bool
*/
- var $_enable_csrf = FALSE;
+ protected $_enable_csrf = FALSE;
/**
* List of all HTTP request headers
*
@@ -85,21 +83,19 @@ class CI_Input {
*/
protected $headers = array();
-
/**
* Constructor
*
* Sets whether to globally enable the XSS processing
* and whether to allow the $_GET array
- *
*/
public function __construct()
{
- log_message('debug', "Input Class Initialized");
+ log_message('debug', 'Input Class Initialized');
$this->_allow_get_array = (config_item('allow_get_array') === TRUE);
- $this->_enable_xss = (config_item('global_xss_filtering') === TRUE);
- $this->_enable_csrf = (config_item('csrf_protection') === TRUE);
+ $this->_enable_xss = (config_item('global_xss_filtering') === TRUE);
+ $this->_enable_csrf = (config_item('csrf_protection') === TRUE);
global $SEC;
$this->security =& $SEC;
@@ -122,7 +118,6 @@ class CI_Input {
*
* This is a helper function to retrieve values from global arrays
*
- * @access protected
* @param array
* @param string
* @param bool
@@ -148,7 +143,6 @@ class CI_Input {
/**
* Fetch an item from the GET array
*
- * @access public
* @param string
* @param bool
* @return string
@@ -156,7 +150,7 @@ class CI_Input {
public function get($index = NULL, $xss_clean = FALSE)
{
// Check if a field has been provided
- if ($index === NULL AND ! empty($_GET))
+ if ($index === NULL && ! empty($_GET))
{
$get = array();
@@ -176,7 +170,6 @@ class CI_Input {
/**
* Fetch an item from the POST array
*
- * @access public
* @param string
* @param bool
* @return string
@@ -184,7 +177,7 @@ class CI_Input {
public function post($index = NULL, $xss_clean = FALSE)
{
// Check if a field has been provided
- if ($index === NULL AND ! empty($_POST))
+ if ($index === NULL && ! empty($_POST))
{
$post = array();
@@ -205,21 +198,15 @@ class CI_Input {
/**
* Fetch an item from either the GET array or the POST
*
- * @access public
* @param string The index key
* @param bool XSS cleaning
* @return string
*/
public function get_post($index = '', $xss_clean = FALSE)
{
- if ( ! isset($_POST[$index]) )
- {
- return $this->get($index, $xss_clean);
- }
- else
- {
- return $this->post($index, $xss_clean);
- }
+ return isset($_POST[$index])
+ ? $this->post($index, $xss_clean)
+ : $this->get($index, $xss_clean);
}
// --------------------------------------------------------------------
@@ -227,7 +214,6 @@ class CI_Input {
/**
* Fetch an item from the COOKIE array
*
- * @access public
* @param string
* @param bool
* @return string
@@ -245,7 +231,6 @@ class CI_Input {
* Accepts six parameter, or you can submit an associative
* array in the first parameter containing all the values.
*
- * @access public
* @param mixed
* @param string the value of the cookie
* @param string the number of seconds until expiration
@@ -269,19 +254,19 @@ class CI_Input {
}
}
- if ($prefix == '' AND config_item('cookie_prefix') != '')
+ if ($prefix == '' && config_item('cookie_prefix') != '')
{
$prefix = config_item('cookie_prefix');
}
- if ($domain == '' AND config_item('cookie_domain') != '')
+ if ($domain == '' && config_item('cookie_domain') != '')
{
$domain = config_item('cookie_domain');
}
- if ($path == '/' AND config_item('cookie_path') != '/')
+ if ($path == '/' && config_item('cookie_path') !== '/')
{
$path = config_item('cookie_path');
}
- if ($secure == FALSE AND config_item('cookie_secure') != FALSE)
+ if ($secure == FALSE && config_item('cookie_secure') != FALSE)
{
$secure = config_item('cookie_secure');
}
@@ -303,7 +288,6 @@ class CI_Input {
/**
* Fetch an item from the SERVER array
*
- * @access public
* @param string
* @param bool
* @return string
@@ -318,7 +302,6 @@ class CI_Input {
/**
* Fetch the IP Address
*
- * @access public
* @return string
*/
public function ip_address()
@@ -335,11 +318,11 @@ class CI_Input {
$this->ip_address = in_array($_SERVER['REMOTE_ADDR'], $proxies) ? $_SERVER['HTTP_X_FORWARDED_FOR'] : $_SERVER['REMOTE_ADDR'];
}
- elseif (! $this->server('HTTP_CLIENT_IP') AND $this->server('REMOTE_ADDR'))
+ elseif ( ! $this->server('HTTP_CLIENT_IP') && $this->server('REMOTE_ADDR'))
{
$this->ip_address = $_SERVER['REMOTE_ADDR'];
}
- elseif ($this->server('REMOTE_ADDR') AND $this->server('HTTP_CLIENT_IP'))
+ elseif ($this->server('REMOTE_ADDR') && $this->server('HTTP_CLIENT_IP'))
{
$this->ip_address = $_SERVER['HTTP_CLIENT_IP'];
}
@@ -354,8 +337,7 @@ class CI_Input {
if ($this->ip_address === FALSE)
{
- $this->ip_address = '0.0.0.0';
- return $this->ip_address;
+ return $this->ip_address = '0.0.0.0';
}
if (strpos($this->ip_address, ',') !== FALSE)
@@ -366,7 +348,7 @@ class CI_Input {
if ( ! $this->valid_ip($this->ip_address))
{
- $this->ip_address = '0.0.0.0';
+ return $this->ip_address = '0.0.0.0';
}
return $this->ip_address;
@@ -379,7 +361,6 @@ class CI_Input {
*
* Updated version suggested by Geert De Deckere
*
- * @access public
* @param string
* @return bool
*/
@@ -394,7 +375,7 @@ class CI_Input {
$ip_segments = explode('.', $ip);
// Always 4 segments needed
- if (count($ip_segments) != 4)
+ if (count($ip_segments) !== 4)
{
return FALSE;
}
@@ -408,7 +389,7 @@ class CI_Input {
{
// IP segments must be digits and can not be
// longer than 3 digits or greater then 255
- if ($segment == '' OR preg_match("/[^0-9]/", $segment) OR $segment > 255 OR strlen($segment) > 3)
+ if ($segment == '' OR preg_match('/[^0-9]/', $segment) OR $segment > 255 OR strlen($segment) > 3)
{
return FALSE;
}
@@ -422,7 +403,6 @@ class CI_Input {
/**
* User Agent
*
- * @access public
* @return string
*/
public function user_agent()
@@ -432,9 +412,7 @@ class CI_Input {
return $this->user_agent;
}
- $this->user_agent = ( ! isset($_SERVER['HTTP_USER_AGENT'])) ? FALSE : $_SERVER['HTTP_USER_AGENT'];
-
- return $this->user_agent;
+ return $this->user_agent = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : FALSE;
}
// --------------------------------------------------------------------
@@ -444,22 +422,20 @@ class CI_Input {
*
* This function does the following:
*
- * Unsets $_GET data (if query strings are not enabled)
- *
- * Unsets all globals if register_globals is enabled
+ * - Unsets $_GET data (if query strings are not enabled)
+ * - Unsets all globals if register_globals is enabled
+ * - Standardizes newline characters to \n
*
- * Standardizes newline characters to \n
- *
- * @access private
* @return void
*/
- private function _sanitize_globals()
+ protected function _sanitize_globals()
{
// It would be "wrong" to unset any of these GLOBALS.
$protected = array('_SERVER', '_GET', '_POST', '_FILES', '_REQUEST',
- '_SESSION', '_ENV', 'GLOBALS', 'HTTP_RAW_POST_DATA',
- 'system_folder', 'application_folder', 'BM', 'EXT',
- 'CFG', 'URI', 'RTR', 'OUT', 'IN');
+ '_SESSION', '_ENV', 'GLOBALS', 'HTTP_RAW_POST_DATA',
+ 'system_folder', 'application_folder', 'BM', 'EXT',
+ 'CFG', 'URI', 'RTR', 'OUT', 'IN'
+ );
// Unset globals for securiy.
// This is effectively the same as register_globals = off
@@ -491,19 +467,16 @@ class CI_Input {
{
$_GET = array();
}
- else
+ elseif (is_array($_GET) && count($_GET) > 0)
{
- if (is_array($_GET) AND count($_GET) > 0)
+ foreach ($_GET as $key => $val)
{
- foreach ($_GET as $key => $val)
- {
- $_GET[$this->_clean_input_keys($key)] = $this->_clean_input_data($val);
- }
+ $_GET[$this->_clean_input_keys($key)] = $this->_clean_input_data($val);
}
}
// Clean $_POST Data
- if (is_array($_POST) AND count($_POST) > 0)
+ if (is_array($_POST) && count($_POST) > 0)
{
foreach ($_POST as $key => $val)
{
@@ -512,7 +485,7 @@ class CI_Input {
}
// Clean $_COOKIE Data
- if (is_array($_COOKIE) AND count($_COOKIE) > 0)
+ if (is_array($_COOKIE) && count($_COOKIE) > 0)
{
// Also get rid of specially treated cookies that might be set by a server
// or silly application, that are of no use to a CI application anyway
@@ -532,14 +505,13 @@ class CI_Input {
// Sanitize PHP_SELF
$_SERVER['PHP_SELF'] = strip_tags($_SERVER['PHP_SELF']);
-
// CSRF Protection check
if ($this->_enable_csrf == TRUE)
{
$this->security->csrf_verify();
}
- log_message('debug', "Global POST and COOKIE data sanitized");
+ log_message('debug', 'Global POST and COOKIE data sanitized');
}
// --------------------------------------------------------------------
@@ -550,11 +522,10 @@ class CI_Input {
* This is a helper function. It escapes data and
* standardizes newline characters to \n
*
- * @access private
* @param string
* @return string
*/
- private function _clean_input_data($str)
+ protected function _clean_input_data($str)
{
if (is_array($str))
{
@@ -592,12 +563,9 @@ class CI_Input {
}
// Standardize newlines if needed
- if ($this->_standardize_newlines == TRUE)
+ if ($this->_standardize_newlines == TRUE && strpos($str, "\r") !== FALSE)
{
- if (strpos($str, "\r") !== FALSE)
- {
- $str = str_replace(array("\r\n", "\r", "\r\n\n"), PHP_EOL, $str);
- }
+ return str_replace(array("\r\n", "\r", "\r\n\n"), PHP_EOL, $str);
}
return $str;
@@ -612,21 +580,21 @@ class CI_Input {
* from trying to exploit keys we make sure that keys are
* only named with alpha-numeric text and a few other items.
*
- * @access private
* @param string
* @return string
*/
- private function _clean_input_keys($str)
+ protected function _clean_input_keys($str)
{
- if ( ! preg_match("/^[a-z0-9:_\/-]+$/i", $str))
+ if ( ! preg_match('/^[a-z0-9:_\/-]+$/i', $str))
{
+ set_status_header(503);
exit('Disallowed Key Characters.');
}
// Clean UTF-8 if supported
if (UTF8_ENABLED === TRUE)
{
- $str = $this->uni->clean_string($str);
+ return $this->uni->clean_string($str);
}
return $str;
@@ -640,10 +608,8 @@ class CI_Input {
* In Apache, you can simply call apache_request_headers(), however for
* people running other webservers the function is undefined.
*
- * @access public
* @param bool XSS cleaning
- *
- * @return array
+ * @return array
*/
public function request_headers($xss_clean = FALSE)
{
@@ -654,11 +620,11 @@ class CI_Input {
}
else
{
- $headers['Content-Type'] = (isset($_SERVER['CONTENT_TYPE'])) ? $_SERVER['CONTENT_TYPE'] : @getenv('CONTENT_TYPE');
+ $headers['Content-Type'] = isset($_SERVER['CONTENT_TYPE']) ? $_SERVER['CONTENT_TYPE'] : @getenv('CONTENT_TYPE');
foreach ($_SERVER as $key => $val)
{
- if (strncmp($key, 'HTTP_', 5) === 0)
+ if (strpos($key, 'HTTP_') === 0)
{
$headers[substr($key, 5)] = $this->_fetch_from_array($_SERVER, $key, $xss_clean);
}
@@ -684,10 +650,9 @@ class CI_Input {
*
* Returns the value of a single member of the headers class member
*
- * @access public
- * @param string array key for $this->headers
- * @param boolean XSS Clean or not
- * @return mixed FALSE on failure, string on success
+ * @param string array key for $this->headers
+ * @param bool XSS Clean or not
+ * @return mixed FALSE on failure, string on success
*/
public function get_request_header($index, $xss_clean = FALSE)
{
@@ -701,12 +666,9 @@ class CI_Input {
return FALSE;
}
- if ($xss_clean === TRUE)
- {
- return $this->security->xss_clean($this->headers[$index]);
- }
-
- return $this->headers[$index];
+ return ($xss_clean === TRUE)
+ ? $this->security->xss_clean($this->headers[$index])
+ : $this->headers[$index];
}
// --------------------------------------------------------------------
@@ -716,12 +678,11 @@ class CI_Input {
*
* Test to see if a request contains the HTTP_X_REQUESTED_WITH header
*
- * @access public
- * @return boolean
+ * @return bool
*/
public function is_ajax_request()
{
- return ($this->server('HTTP_X_REQUESTED_WITH') === 'XMLHttpRequest');
+ return ( ! empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) === 'xmlhttprequest');
}
// --------------------------------------------------------------------
@@ -731,12 +692,11 @@ class CI_Input {
*
* Test to see if a request was made from the command line
*
- * @access public
- * @return boolean
+ * @return bool
*/
public function is_cli_request()
{
- return (php_sapi_name() == 'cli') or defined('STDIN');
+ return (php_sapi_name() === 'cli' OR defined('STDIN'));
}
}
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-03 19:38:35 +0100