user authentication

[leeny]

how can i make my user authentication in ASP case sensitive?any1?

[leeny]

myabe i shuld elaborate further. Currently, i allow user to enter their username and of cos store it in the database. Following which, when the user logs in, the username he types must match with the one in the DB(of cos) in respect to their case. For example username is mIcKy therefore whatever the user types must be in respect to it. is there any way? or it's in poss?

[lmf232s]

well i think when you compare strings its already case sensitive.
So if the user types in

mikey

and the database value is

mIkey

then this expression

if mikey = mIkey then

will be false because of the case difference.

[NinjaCodeMonkey]

VBScript doesn't support comparing case-sensitive strings. Though, JavaScript does. Here is an example of how to call the javascript function from vbscript.


<%
boolVal = compareString("Test", "TEST)
%>

<script language="JScript" runat="server">
function compareString(string1, string2)
{
if(string1 == string2)
{
return true;
}
else
{
return false;
}
}
</script>


This is a pretty quick and easy way to do it. Let me know if this helps.

[lmf232s]

if Test = "TEST" then
Response.Write "true"
else
Response.Write "false"
end if

this will return false


if Test = "Test" then
Response.Write "true"
else
Response.Write "false"
end if

this will return true

[NinjaCodeMonkey]

Alas, I was mistaken. You can use the StrComp() function in VBScript.

Here is the link: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/script56/html/vsfctstrcomp.asp

EXAMPLE:

Dim MyStr1, MyStr2, MyComp
MyStr1 = "ABCD": MyStr2 = "abcd" ' Define variables.
MyComp = StrComp(MyStr1, MyStr2, 1) ' Returns 0. TextCompare
MyComp = StrComp(MyStr1, MyStr2, 0) ' Returns -1. BinaryCompare
MyComp = StrComp(MyStr2, MyStr1) ' Returns 1. Also, BinaryCompare



You would want to use "0" for the third argument. It does a binary comparison of the strings, which in your case may or may not be different.