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-rw-r--r--system/core/Input.php113
1 files changed, 80 insertions, 33 deletions
diff --git a/system/core/Input.php b/system/core/Input.php
index 0ef81128e..ccb70daec 100644
--- a/system/core/Input.php
+++ b/system/core/Input.php
@@ -47,7 +47,7 @@ class CI_Input {
public $ip_address = FALSE;
/**
- * User agent strin
+ * User agent string
*
* @var string
*/
@@ -63,7 +63,7 @@ class CI_Input {
protected $_allow_get_array = TRUE;
/**
- * Standartize new lines flag
+ * Standardize new lines flag
*
* If set to TRUE, then newlines are standardized.
*
@@ -121,9 +121,10 @@ class CI_Input {
{
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->_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->_sandardize_newlines = (bool) config_item('standardize_newlines');
global $SEC;
$this->security =& $SEC;
@@ -151,8 +152,10 @@ class CI_Input {
* @param bool $xss_clean Whether to apply XSS filtering
* @return mixed
*/
- protected function _fetch_from_array(&$array, $index = '', $xss_clean = FALSE)
+ protected function _fetch_from_array(&$array, $index = '', $xss_clean = NULL)
{
+ is_bool($xss_clean) OR $xss_clean = $this->_enable_xss;
+
if (isset($array[$index]))
{
$value = $array[$index];
@@ -197,8 +200,10 @@ class CI_Input {
* @param bool $xss_clean Whether to apply XSS filtering
* @return mixed
*/
- public function get($index = NULL, $xss_clean = FALSE)
+ public function get($index = NULL, $xss_clean = NULL)
{
+ is_bool($xss_clean) OR $xss_clean = $this->_enable_xss;
+
// Check if a field has been provided
if ($index === NULL)
{
@@ -229,8 +234,10 @@ class CI_Input {
* @param bool $xss_clean Whether to apply XSS filtering
* @return mixed
*/
- public function post($index = NULL, $xss_clean = FALSE)
+ public function post($index = NULL, $xss_clean = NULL)
{
+ is_bool($xss_clean) OR $xss_clean = $this->_enable_xss;
+
// Check if a field has been provided
if ($index === NULL)
{
@@ -261,8 +268,10 @@ class CI_Input {
* @param bool $xss_clean Whether to apply XSS filtering
* @return mixed
*/
- public function get_post($index = '', $xss_clean = FALSE)
+ public function post_get($index = '', $xss_clean = NULL)
{
+ is_bool($xss_clean) OR $xss_clean = $this->_enable_xss;
+
return isset($_POST[$index])
? $this->post($index, $xss_clean)
: $this->get($index, $xss_clean);
@@ -271,14 +280,34 @@ class CI_Input {
// --------------------------------------------------------------------
/**
+ * Fetch an item from GET data with fallback to POST
+ *
+ * @param string $index Index for item to be fetched from $_GET or $_POST
+ * @param bool $xss_clean Whether to apply XSS filtering
+ * @return mixed
+ */
+ public function get_post($index = '', $xss_clean = NULL)
+ {
+ is_bool($xss_clean) OR $xss_clean = $this->_enable_xss;
+
+ return isset($_GET[$index])
+ ? $this->get($index, $xss_clean)
+ : $this->post($index, $xss_clean);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
* Fetch an item from the COOKIE array
*
* @param string $index Index for item to be fetched from $_COOKIE
* @param bool $xss_clean Whether to apply XSS filtering
* @return mixed
*/
- public function cookie($index = '', $xss_clean = FALSE)
+ public function cookie($index = '', $xss_clean = NULL)
{
+ is_bool($xss_clean) OR $xss_clean = $this->_enable_xss;
+
return $this->_fetch_from_array($_COOKIE, $index, $xss_clean);
}
@@ -291,8 +320,10 @@ class CI_Input {
* @param bool $xss_clean Whether to apply XSS filtering
* @return mixed
*/
- public function server($index = '', $xss_clean = FALSE)
+ public function server($index = '', $xss_clean = NULL)
{
+ is_bool($xss_clean) OR $xss_clean = $this->_enable_xss;
+
return $this->_fetch_from_array($_SERVER, $index, $xss_clean);
}
@@ -307,8 +338,10 @@ class CI_Input {
* @param bool $xss_clean Whether to apply XSS filtering
* @return mixed
*/
- public function input_stream($index = '', $xss_clean = FALSE)
+ public function input_stream($index = '', $xss_clean = NULL)
{
+ is_bool($xss_clean) OR $xss_clean = $this->_enable_xss;
+
// The input stream can only be read once, so we'll need to check
// if we have already done that first.
if (is_array($this->_input_stream))
@@ -345,7 +378,7 @@ class CI_Input {
* @param bool $httponly Whether to only makes the cookie accessible via HTTP (no javascript)
* @return void
*/
- public function set_cookie($name = '', $value = '', $expire = '', $domain = '', $path = '/', $prefix = '', $secure = FALSE, $httponly = FALSE)
+ public function set_cookie($name, $value = '', $expire = '', $domain = '', $path = '/', $prefix = '', $secure = FALSE, $httponly = FALSE)
{
if (is_array($name))
{
@@ -671,13 +704,22 @@ class CI_Input {
// but that when present will trip our 'Disallowed Key Characters' alarm
// http://www.ietf.org/rfc/rfc2109.txt
// note that the key names below are single quoted strings, and are not PHP variables
- unset($_COOKIE['$Version']);
- unset($_COOKIE['$Path']);
- unset($_COOKIE['$Domain']);
+ unset(
+ $_COOKIE['$Version'],
+ $_COOKIE['$Path'],
+ $_COOKIE['$Domain']
+ );
foreach ($_COOKIE as $key => $val)
{
- $_COOKIE[$this->_clean_input_keys($key)] = $this->_clean_input_data($val);
+ if (($cookie_key = $this->_clean_input_keys($key)) !== FALSE)
+ {
+ $_COOKIE[$cookie_key] = $this->_clean_input_data($val);
+ }
+ else
+ {
+ unset($_COOKIE[$key]);
+ }
}
}
@@ -685,12 +727,12 @@ class CI_Input {
$_SERVER['PHP_SELF'] = strip_tags($_SERVER['PHP_SELF']);
// CSRF Protection check
- if ($this->_enable_csrf === TRUE && ! $this->is_cli_request())
+ if ($this->_enable_csrf === TRUE && ! is_cli())
{
$this->security->csrf_verify();
}
- log_message('debug', 'Global POST and COOKIE data sanitized');
+ log_message('debug', 'Global POST, GET and COOKIE data sanitized');
}
// --------------------------------------------------------------------
@@ -733,13 +775,7 @@ class CI_Input {
}
// Remove control characters
- $str = remove_invisible_characters($str);
-
- // Should we filter the input data?
- if ($this->_enable_xss === TRUE)
- {
- $str = $this->security->xss_clean($str);
- }
+ $str = remove_invisible_characters($str, FALSE);
// Standardize newlines if needed
if ($this->_standardize_newlines === TRUE)
@@ -760,15 +796,25 @@ class CI_Input {
* only named with alpha-numeric text and a few other items.
*
* @param string $str Input string
- * @return string
+ * @param string $fatal Whether to terminate script exection
+ * or to return FALSE if an invalid
+ * key is encountered
+ * @return string|bool
*/
- protected function _clean_input_keys($str)
+ protected function _clean_input_keys($str, $fatal = TRUE)
{
if ( ! preg_match('/^[a-z0-9:_\/|-]+$/i', $str))
{
- set_status_header(503);
- echo 'Disallowed Key Characters.';
- exit(EXIT_USER_INPUT);
+ if ($fatal === TRUE)
+ {
+ return FALSE;
+ }
+ else
+ {
+ set_status_header(503);
+ echo 'Disallowed Key Characters.';
+ exit(EXIT_USER_INPUT);
+ }
}
// Clean UTF-8 if supported
@@ -868,11 +914,12 @@ class CI_Input {
*
* Test to see if a request was made from the command line.
*
- * @return bool
+ * @deprecated 3.0.0 Use is_cli() instead
+ * @return bool
*/
public function is_cli_request()
{
- return (php_sapi_name() === 'cli' OR defined('STDIN'));
+ return is_cli();
}
// --------------------------------------------------------------------
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-07-03 10:14:57 +0200