--- a/busui/owa/includes/class.inputfilter.php
+++ b/busui/owa/includes/class.inputfilter.php
@@ -1,1 +1,314 @@
-
+<?php
+
+/** @class: InputFilter (PHP4 & PHP5, with comments)
+  * @project: PHP Input Filter
+  * @date: 10-05-2005
+  * @version: 1.2.2_php4/php5
+  * @author: Daniel Morris
+  * @contributors: Gianpaolo Racca, Ghislain Picard, Marco Wandschneider, Chris Tobin and Andrew Eddie.
+  * @copyright: Daniel Morris
+  * @email: dan@rootcube.com
+  * @license: GNU General Public License (GPL)
+  */
+class owa_InputFilter {
+	var $tagsArray;			// default = empty array
+	var $attrArray;			// default = empty array
+
+	var $tagsMethod;		// default = 0
+	var $attrMethod;		// default = 0
+
+	var $xssAuto;           // default = 1
+	var $tagBlacklist = array('applet', 'body', 'bgsound', 'base', 'basefont', 'embed', 'frame', 'frameset', 'head', 'html', 'id', 'iframe', 'ilayer', 'layer', 'link', 'meta', 'name', 'object', 'script', 'style', 'title', 'xml');
+	var $attrBlacklist = array('action', 'background', 'codebase', 'dynsrc', 'lowsrc');  // also will strip ALL event handlers
+		
+	/** 
+	  * Constructor for inputFilter class. Only first parameter is required.
+	  * @access constructor
+	  * @param Array $tagsArray - list of user-defined tags
+	  * @param Array $attrArray - list of user-defined attributes
+	  * @param int $tagsMethod - 0= allow just user-defined, 1= allow all but user-defined
+	  * @param int $attrMethod - 0= allow just user-defined, 1= allow all but user-defined
+	  * @param int $xssAuto - 0= only auto clean essentials, 1= allow clean blacklisted tags/attr
+	  */
+	function inputFilter($tagsArray = array(), $attrArray = array(), $tagsMethod = 0, $attrMethod = 0, $xssAuto = 1) {		
+		// make sure user defined arrays are in lowercase
+		for ($i = 0; $i < count($tagsArray); $i++) $tagsArray[$i] = strtolower($tagsArray[$i]);
+		for ($i = 0; $i < count($attrArray); $i++) $attrArray[$i] = strtolower($attrArray[$i]);
+		// assign to member vars
+		$this->tagsArray = (array) $tagsArray;
+		$this->attrArray = (array) $attrArray;
+		$this->tagsMethod = $tagsMethod;
+		$this->attrMethod = $attrMethod;
+		$this->xssAuto = $xssAuto;
+	}
+	
+	/** 
+	  * Method to be called by another php script. Processes for XSS and specified bad code.
+	  * @access public
+	  * @param Mixed $source - input string/array-of-string to be 'cleaned'
+	  * @return String $source - 'cleaned' version of input parameter
+	  */
+	function process($source) {
+		// clean all elements in this array
+		if (is_array($source)) {
+			foreach($source as $key => $value)
+				// filter element for XSS and other 'bad' code etc.
+				if (is_string($value)) $source[$key] = $this->remove($this->decode($value));
+			return $source;
+		// clean this string
+		} else if (is_string($source)) {
+			// filter source for XSS and other 'bad' code etc.
+			return $this->remove($this->decode($source));
+		// return parameter as given
+		} else return $source;	
+	}
+
+	/** 
+	  * Internal method to iteratively remove all unwanted tags and attributes
+	  * @access protected
+	  * @param String $source - input string to be 'cleaned'
+	  * @return String $source - 'cleaned' version of input parameter
+	  */
+	function remove($source) {
+		$loopCounter=0;
+		// provides nested-tag protection
+		while($source != $this->filterTags($source)) {
+			$source = $this->filterTags($source);
+			$loopCounter++;
+		}
+		return $source;
+	}	
+	
+	/** 
+	  * Internal method to strip a string of certain tags
+	  * @access protected
+	  * @param String $source - input string to be 'cleaned'
+	  * @return String $source - 'cleaned' version of input parameter
+	  */
+	function filterTags($source) {
+		// filter pass setup
+		$preTag = NULL;
+		$postTag = $source;
+		// find initial tag's position
+		$tagOpen_start = strpos($source, '<');
+		// interate through string until no tags left
+		while($tagOpen_start !== FALSE) {
+			// process tag interatively
+			$preTag .= substr($postTag, 0, $tagOpen_start);
+			$postTag = substr($postTag, $tagOpen_start);
+			$fromTagOpen = substr($postTag, 1);
+			// end of tag
+			$tagOpen_end = strpos($fromTagOpen, '>');
+			if ($tagOpen_end === false) break;
+			// next start of tag (for nested tag assessment)
+			$tagOpen_nested = strpos($fromTagOpen, '<');
+			if (($tagOpen_nested !== false) && ($tagOpen_nested < $tagOpen_end)) {
+				$preTag .= substr($postTag, 0, ($tagOpen_nested+1));
+				$postTag = substr($postTag, ($tagOpen_nested+1));
+				$tagOpen_start = strpos($postTag, '<');
+				continue;
+			} 
+			$tagOpen_nested = (strpos($fromTagOpen, '<') + $tagOpen_start + 1);
+			$currentTag = substr($fromTagOpen, 0, $tagOpen_end);
+			$tagLength = strlen($currentTag);
+			if (!$tagOpen_end) {
+				$preTag .= $postTag;
+				$tagOpen_start = strpos($postTag, '<');			
+			}
+			// iterate through tag finding attribute pairs - setup
+			$tagLeft = $currentTag;
+			$attrSet = array();
+			$currentSpace = strpos($tagLeft, ' ');
+			// is end tag
+			if (substr($currentTag, 0, 1) == "/") {
+				$isCloseTag = TRUE;
+				list($tagName) = explode(' ', $currentTag);
+				$tagName = substr($tagName, 1);
+			// is start tag
+			} else {
+				$isCloseTag = FALSE;
+				list($tagName) = explode(' ', $currentTag);
+			}		
+			// excludes all "non-regular" tagnames OR no tagname OR remove if xssauto is on and tag is blacklisted
+			if ((!preg_match("/^[a-z][a-z0-9]*$/i",$tagName)) || (!$tagName) || ((in_array(strtolower($tagName), $this->tagBlacklist)) && ($this->xssAuto))) { 				
+				$postTag = substr($postTag, ($tagLength + 2));
+				$tagOpen_start = strpos($postTag, '<');
+				// don't append this tag
+				continue;
+			}
+			// this while is needed to support attribute values with spaces in!
+			while ($currentSpace !== FALSE) {
+				$fromSpace = substr($tagLeft, ($currentSpace+1));
+				$nextSpace = strpos($fromSpace, ' ');
+				$openQuotes = strpos($fromSpace, '"');
+				$closeQuotes = strpos(substr($fromSpace, ($openQuotes+1)), '"') + $openQuotes + 1;
+				// another equals exists
+				if (strpos($fromSpace, '=') !== FALSE) {
+					// opening and closing quotes exists
+					if (($openQuotes !== FALSE) && (strpos(substr($fromSpace, ($openQuotes+1)), '"') !== FALSE))
+						$attr = substr($fromSpace, 0, ($closeQuotes+1));
+					// one or neither exist
+					else $attr = substr($fromSpace, 0, $nextSpace);
+				// no more equals exist
+				} else $attr = substr($fromSpace, 0, $nextSpace);
+				// last attr pair
+				if (!$attr) $attr = $fromSpace;
+				// add to attribute pairs array
+				$attrSet[] = $attr;
+				// next inc
+				$tagLeft = substr($fromSpace, strlen($attr));
+				$currentSpace = strpos($tagLeft, ' ');
+			}
+			// appears in array specified by user
+			$tagFound = in_array(strtolower($tagName), $this->tagsArray);			
+			// remove this tag on condition
+			if ((!$tagFound && $this->tagsMethod) || ($tagFound && !$this->tagsMethod)) {
+				// reconstruct tag with allowed attributes
+				if (!$isCloseTag) {
+					$attrSet = $this->filterAttr($attrSet);
+					$preTag .= '<' . $tagName;
+					for ($i = 0; $i < count($attrSet); $i++)
+						$preTag .= ' ' . $attrSet[$i];
+					// reformat single tags to XHTML
+					if (strpos($fromTagOpen, "</" . $tagName)) $preTag .= '>';
+					else $preTag .= ' />';
+				// just the tagname
+			    } else $preTag .= '</' . $tagName . '>';
+			}
+			// find next tag's start
+			$postTag = substr($postTag, ($tagLength + 2));
+			$tagOpen_start = strpos($postTag, '<');			
+		}
+		// append any code after end of tags
+		$preTag .= $postTag;
+		return $preTag;
+	}
+
+	/** 
+	  * Internal method to strip a tag of certain attributes
+	  * @access protected
+	  * @param Array $attrSet
+	  * @return Array $newSet
+	  */
+	function filterAttr($attrSet) {	
+		$newSet = array();
+		// process attributes
+		for ($i = 0; $i <count($attrSet); $i++) {
+			// skip blank spaces in tag
+			if (!$attrSet[$i]) continue;
+			// split into attr name and value
+			$attrSubSet = explode('=', trim($attrSet[$i]));
+			list($attrSubSet[0]) = explode(' ', $attrSubSet[0]);
+			// removes all "non-regular" attr names AND also attr blacklisted
+			if ((!eregi("^[a-z]*$",$attrSubSet[0])) || (($this->xssAuto) && ((in_array(strtolower($attrSubSet[0]), $this->attrBlacklist)) || (substr($attrSubSet[0], 0, 2) == 'on')))) 
+				continue;
+			// xss attr value filtering
+			if ($attrSubSet[1]) {
+				// strips unicode, hex, etc
+				$attrSubSet[1] = str_replace('&#', '', $attrSubSet[1]);
+				// strip normal newline within attr value
+				$attrSubSet[1] = preg_replace('/\s+/', '', $attrSubSet[1]);
+				// strip double quotes
+				$attrSubSet[1] = str_replace('"', '', $attrSubSet[1]);
+				// [requested feature] convert single quotes from either side to doubles (Single quotes shouldn't be used to pad attr value)
+				if ((substr($attrSubSet[1], 0, 1) == "'") && (substr($attrSubSet[1], (strlen($attrSubSet[1]) - 1), 1) == "'"))
+					$attrSubSet[1] = substr($attrSubSet[1], 1, (strlen($attrSubSet[1]) - 2));
+				// strip slashes
+				$attrSubSet[1] = stripslashes($attrSubSet[1]);
+			}
+			// auto strip attr's with "javascript:
+			if (	((strpos(strtolower($attrSubSet[1]), 'expression') !== false) &&	(strtolower($attrSubSet[0]) == 'style')) ||
+					(strpos(strtolower($attrSubSet[1]), 'javascript:') !== false) ||
+					(strpos(strtolower($attrSubSet[1]), 'behaviour:') !== false) ||
+					(strpos(strtolower($attrSubSet[1]), 'vbscript:') !== false) ||
+					(strpos(strtolower($attrSubSet[1]), 'mocha:') !== false) ||
+					(strpos(strtolower($attrSubSet[1]), 'livescript:') !== false) 
+			) continue;
+
+			// if matches user defined array
+			$attrFound = in_array(strtolower($attrSubSet[0]), $this->attrArray);
+			// keep this attr on condition
+			if ((!$attrFound && $this->attrMethod) || ($attrFound && !$this->attrMethod)) {
+				// attr has value
+				if ($attrSubSet[1]) $newSet[] = $attrSubSet[0] . '="' . $attrSubSet[1] . '"';
+				// attr has decimal zero as value
+				else if ($attrSubSet[1] == "0") $newSet[] = $attrSubSet[0] . '="0"';
+				// reformat single attributes to XHTML
+				else $newSet[] = $attrSubSet[0] . '="' . $attrSubSet[0] . '"';
+			}	
+		}
+		return $newSet;
+	}
+	
+	/** 
+	  * Try to convert to plaintext
+	  * @access protected
+	  * @param String $source
+	  * @return String $source
+	  */
+	function decode($source) {
+		// url decode
+		$source = html_entity_decode($source, ENT_QUOTES, "ISO-8859-1");
+		// convert decimal
+		$source = preg_replace('/&#(\d+);/me',"chr(\\1)", $source);				// decimal notation
+		// convert hex
+		$source = preg_replace('/&#x([a-f0-9]+);/mei',"chr(0x\\1)", $source);	// hex notation
+		return $source;
+	}
+
+	/** 
+	  * Method to be called by another php script. Processes for SQL injection
+	  * @access public
+	  * @param Mixed $source - input string/array-of-string to be 'cleaned'
+	  * @param Buffer $connection - An open MySQL connection
+	  * @return String $source - 'cleaned' version of input parameter
+	  */
+	function safeSQL($source, &$connection) {
+		// clean all elements in this array
+		if (is_array($source)) {
+			foreach($source as $key => $value)
+				// filter element for SQL injection
+				if (is_string($value)) $source[$key] = $this->quoteSmart($this->decode($value), $connection);
+			return $source;
+		// clean this string
+		} else if (is_string($source)) {
+			// filter source for SQL injection
+			if (is_string($source)) return $this->quoteSmart($this->decode($source), $connection);
+		// return parameter as given
+		} else return $source;	
+	}
+
+	/** 
+	  * @author Chris Tobin
+	  * @author Daniel Morris
+	  * @access protected
+	  * @param String $source
+	  * @param Resource $connection - An open MySQL connection
+	  * @return String $source
+	  */
+	function quoteSmart($source, &$connection) {
+		// strip slashes
+		if (get_magic_quotes_gpc()) $source = stripslashes($source);
+		// quote both numeric and text
+		$source = $this->escapeString($source, $connection);
+		return $source;
+	}
+	
+	/** 
+	  * @author Chris Tobin
+	  * @author Daniel Morris
+	  * @access protected
+	  * @param String $source
+	  * @param Resource $connection - An open MySQL connection
+	  * @return String $source
+	  */	
+	function escapeString($string, &$connection) {
+		// depreciated function
+		if (version_compare(phpversion(),"4.3.0", "<")) mysql_escape_string($string);
+		// current function
+		else mysql_real_escape_string($string);
+		return $string;
+	}
+}
+
+?>