Ok here's both functions...
http://dev.mxconsulting.com/sergv2/testSTringUdf.cfm?object=true
Pass whatever you like as url params. Notice that it does not error - but it doesn't always give you back what you gave
it either. for example:
http://dev.mxconsulting.com/sergv2/testSTringUdf.cfm?object=true&filbert=Isaliar$_#))*$
Notice it is truncated after $_
In fact (and this is an interesting point) if you put a pound sign in the query string - or if your encoded function
does so - it will indeed always lop off anything that comes after that. so if chr(35) is in your first position, you
will end up with this exact error. observe:
http://dev.mxconsulting.com/sergv2/testSTringUdf.cfm?#object=true
There may be other nuanced character codes that cause trouble for you.
-Mark
-----Original Message-----
From: Mark W. Breneman [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 08, 2003 3:55 PM
To: CF-Talk
Subject: RE: Ok, I give up UDF error
The still get the same error "Parameter 2 of function Left which is now
-1 must be a positive integer"
OK here is the pair of UDFs if anyone cares to play with them. All they
are meant to do is to encode a value to a short non readable string. I
plan to use to encode url vars when security is not major issue. Simply
this is meant to be generate a short sneaky, not secure encoded string.
As you can see buy the qencode function a random number is added to the
end of the sting just to make it look non-sequestional when a list of
the code are viewed. All I am trying to do is to trim that last number
off on the qdecode output.
Thanks for your help.
<cfscript>
function qencode(urlvars){
var tempurlvars = URLEncodedFormat(urlvars & RandRange(0,
9));
var strlen = len(tempurlvars);
var newstr = "";
var tempstr = "";
var i = 1;
var key = 65;
for(i=1;i lte strlen;i=i+1) {
tempstr = Asc(Mid(tempurlvars, i, 1));
newstr = newstr & Chr(tempstr + 3);
}
return URLEncodedFormat(newstr);
}
</cfscript>
<cfscript>
function qdecode(urlvars){
var tempurlvars = URLDecode(urlvars);
var strlen = len(tempurlvars);
var newstr = "";
var tempstr = "";
var i = 1;
for(i=1;i lte strlen;i=i+1) {
tempstr = Asc(Mid(tempurlvars, i, 1));
newstr = newstr & Chr(tempstr - 3);
}
strReturn = 'Too Short:' & newstr & ':end';
if (len(newstr)+1)
strReturn = left(newstr,len(newstr)-1);
return strReturn;
}
</cfscript>
Mark W. Breneman
-Cold Fusion Developer
-Network Administrator
Vivid Media
[EMAIL PROTECTED]
www.vividmedia.com
608.270.9770
-----Original Message-----
From: Calvin Ward [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 08, 2003 3:16 PM
To: CF-Talk
Subject: Re: Ok, I give up UDF error
What does this do for you?
<cfscript>
function qdecode(urlvars){
var tempurlvars = URLDecode(urlvars);
var strlen = len(tempurlvars);
var tempstr = "";
var i = 1;
var newstr = "";
for(i=1;i lte strlen;i=i+1) {
tempstr = Asc(Mid(tempurlvars, i, 1));
newstr = newstr & Chr(tempstr - 3);
}
strReturn = 'Too Short:' & newstr & ':end';
if (len(newstr)+1)
strReturn = left(newstr,len(newstr)-1);
}
</cfscript>
- Calvin
----- Original Message -----
From: Mark W. Breneman
To: CF-Talk
Sent: Wednesday, October 08, 2003 3:52 PM
Subject: RE: Ok, I give up UDF error
Good question, but no, I have ran the output several times and checked
all values none are blank.
Mark W. Breneman
-Cold Fusion Developer
-Network Administrator
Vivid Media
[EMAIL PROTECTED]
www.vividmedia.com
608.270.9770
-----Original Message-----
From: Matthew Walker [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 08, 2003 2:44 PM
To: CF-Talk
Subject: Re: Ok, I give up UDF error
Is your input string empty?
----- Original Message -----
From: Mark W. Breneman
To: CF-Talk
Sent: Thursday, October 09, 2003 8:37 AM
Subject: Ok, I give up UDF error
This seems so simple. All I want to do is to trim the last char from
the
return string. I keep getting this error "Parameter 2 of function
Left
which is now -1 must be a positive integer"
If I hard code a value in the UDF works with out a problem. But
when
I
put in the len(newstr)-1 into the "left" function it seems to
evaluate
to 0.
Can anyone help me out?
<cfscript>
function qdecode(urlvars){
var tempurlvars = URLDecode(urlvars);
var strlen = len(tempurlvars);
var tempstr = "";
var i = 1;
var newstr = "";
for(i=1;i lte strlen;i=i+1) {
tempstr = Asc(Mid(tempurlvars, i, 1));
newstr = newstr & Chr(tempstr - 3);
}
return left(newstr,len(newstr)-1);
}
</cfscript>
Mark W. Breneman
-Cold Fusion Developer
-Network Administrator
Vivid Media
[EMAIL PROTECTED]
www.vividmedia.com
608.270.9770
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