From 40a7c6805f4a65605963f10dc2db0fc748710779 Mon Sep 17 00:00:00 2001
From: paulburdick <devnull@localhost>
Date: Sat, 13 Jan 2007 00:03:37 +0000
Subject:

---
 system/libraries/Input.php | 34 ++++++++++++++++++++++++++--------
 1 file changed, 26 insertions(+), 8 deletions(-)

diff --git a/system/libraries/Input.php b/system/libraries/Input.php
index 801762073..4fd2061c7 100644
--- a/system/libraries/Input.php
+++ b/system/libraries/Input.php
@@ -366,14 +366,14 @@ class CI_Input {
 	 * XSS Clean
 	 *
 	 * Sanitizes data so that Cross Site Scripting Hacks can be
-	 * prevented.Ê This function does a fair amount of work but
+	 * prevented.  This function does a fair amount of work but
 	 * it is extremely thorough, designed to prevent even the
-	 * most obscure XSS attempts.Ê Nothing is ever 100% foolproof,
+	 * 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.Ê It's not something that should
+	 * upon submission.  It's not something that should
 	 * be used for general runtime processing.
 	 *
 	 * This function was based in part on some code and ideas I
@@ -447,6 +447,24 @@ class CI_Input {
 									$str);
 			}
 		}
+		
+		/*
+		 * Not Allowed Under Any Conditions
+		 */	
+		$bad = array(
+						'document.cookie'	=> '[removed]',
+						'document.write'	=> '[removed]',
+						'window.location'	=> '[removed]',
+						"javascript\s*:"	=> '[removed]',
+						"Redirect\s+302"	=> '[removed]',
+						'<!--'				=> '&lt;!--',
+						'-->'				=> '--&gt;'
+					);
+	
+		foreach ($bad as $key => $val)
+		{
+			$str = preg_replace("#".$key."#i", $val, $str);   
+		}
 	
 		/*
 		 * Convert all tabs to spaces
@@ -542,11 +560,11 @@ class CI_Input {
 		 *
 		 */	
 		$bad = array(
-						'document.cookie'	=> '',
-						'document.write'	=> '',
-						'window.location'	=> '',
-						"javascript\s*:"	=> '',
-						"Redirect\s+302"	=> '',
+						'document.cookie'	=> '[removed]',
+						'document.write'	=> '[removed]',
+						'window.location'	=> '[removed]',
+						"javascript\s*:"	=> '[removed]',
+						"Redirect\s+302"	=> '[removed]',
 						'<!--'				=> '&lt;!--',
 						'-->'				=> '--&gt;'
 					);
-- 
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