verityClean(input)
Last updated December 7, 2007
Version: 5 | Requires: ColdFusion 5 | Library: StrLib
Description:
Verity_clean strips all invalid characters and word combinations from a search strign to prevent verity from crashing.
Return Values:
Returns a string.
Example:
<cfset strs[1] = "foo oo ooo">
<cfset strs[2] = "foo@moo">
<cfset strs[3] = "andfoo">
<cfset strs[4] = "and foo">
<cfset strs[5] = "or and foo">
<cfset strs[6] = "\and and foo and">
<cfloop index="x" from=1 to="#arrayLen(strs)#">
<cfoutput><b>#strs[x]#</b> passed to VerityClean is: <b>#verityClean(strs[x])#</b><P></cfoutput>
</cfloop>
Parameters:
| Name | Description | Required |
|---|---|---|
| input | String to Verity clean. | Yes |
Full UDF Source:
<cfscript>
/**
* Creates a verity "safe" search string.
* Version 2 rewritten by Raymond Camden
* Version 3 - made \ into \\ thanks to user comment
* Version 4 - Fixed bugs identified by John Salonich II (21 JAN 2003), Neal Todd (06 FEB 04), Jeremy Halliwell (01 APR 03). Also added fix for curly brackets, comma, funny quote and plus.
* v5 bug fixed by Dominic OConnor
*
* @param input String to Verity clean. (Required)
* @return Returns a string.
* @author Simon Potter (spotter@redbanner.com)
* @version 5, December 7, 2007
*/
function verityClean(input) {
//Value to return after cleaning
var cleanText = trim(input);
// List of special characters to remove
var reBadChars = "\\|@|#chr(34)#|'|<|>|\(|\)|!|=|\[|\]|\{|\}|\#chr(44)#|`|\#chr(43)#";
// List of words to watch for
var arProblemWords = "and,or,not";
var x = 1;
var y = 1;
var temp = "";
//=-=-=-=-=-=-=-=-=-=-=-=-=-=
//Turn list into arrays for the loop
//=-=-=-=-=-=-=-=-=-=-=-=-=-=
arProblemWords = ListToArray(arProblemWords);
//=-=-=-=-=-=-=-=-
// Strip double spaces
//=-=-=-=-=-=-=-=-
cleanText = reReplace(cleanText," {2,}"," ","all");
//=-=-=-=-=-=-=-=-=-
// Strip bad characters
//=-=-=-=-=-=-=-=-=
cleanText = reReplace(cleanText,reBadChars,"","all");
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
// Remove dupes and start/end bad words
//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
for (x = 1; x lte arraylen(arProblemWords); x = x + 1) {
//remove dupes
cleanText = trim(reReplace(cleanText,"(#arProblemWords[x]#[[:space:]]+){2,}","","all"));
//remove arProblemWord[x] + any of the others
temp = arProblemWords[x] & "[[:space:]]+(";
for(y = 1; y lte arrayLen(arProblemWords); y=y+1) {
if(x neq y) {
temp = temp & arProblemWords[y] & "[[:space:]]+|";
}
}
//remove last |
temp = left(temp, len(temp)-1);
//add closing )
temp = temp & ")";
cleanText = trim(reReplace(cleanText,temp,"","all"));
//remove from beginning
if(
findNoCase(arProblemWords[x],cleanText) is 1 and
reFind("[[:space:]]+",mid(cleanText,len(arProblemWords[x])+1,1)) and
mid(cleanText,1,3) NEQ "not"
) cleanText = trim(right(cleantext,len(cleantext) - len(arProblemWords[x])));
if(
findNoCase(arProblemWords[x],cleanText) gt 0 and
len(cleanText) eq len(arProblemWords[x])
) cleanText = "";
//remove from end
if(
findNoCase(arProblemWords[x],cleanText) gt 0 and
findNoCase(arProblemWords[x],cleanText,len(cleanText) - len(arProblemWords[x])) is (len(cleanText) - len(arProblemWords[x]) + 1)
and
reFind("[[:space:]]+",mid(cleanText,len(cleanText) - len(arProblemWords[x]),1))
) cleanText = trim(left(cleanText, len(cleanText) - len(arProblemWords[x])));
}
// Return the cleaned value
return cleanText;
}
</cfscript>
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