Send variable through URL in ASCII

[sndkick]

I want to link to a page and pass a username through the queryString but I want to send the username in ASCII rather than just normal text. So when the user clicks on my link, they'll see in the address bar something like

..mypage.asp?username=%43%48%52%49%53

rather than

..mypage.asp?username=CHRIS

This is kind of for security reasons, but not really. We just don't want to display the name in the URL. I have to link to a page on a Linux box which can parse out the username from ASCII. I am just having trouble converting to ASCII. Is there any easy way to do this?

Thanks

 

[dcusick]

Try using the mid function to isolate each letter and the ASC function to convert it to an ascii character. Build a string(strMes) and add a '%' and the ascii equivalent like I did below. Hope this helps. Good luck.


dim x, strMes
strMes=""

For x = 1 To Len(UserID)
strMes = strMes & "%" & Asc(Mid(UserID, x, 1))
Next

You may now pass strMes along in your URL.

Doug

 

[sndkick]

That did help... somewhat. I think I need the Hex value, not the Dec value for the number. Any idea how to derive the hex value?

 

[dcusick]

oh I see. Just run this instead.

dim x, strMes
strMes=""

For x = 1 To Len(UserID)
strMes = strMes & "%" & Hex(Asc(Mid(UserID, x, 1)))
Next

All you gotta do is throw the Hex() function around it. After I ran that, I did get your numbers that you used in the example. Sorry for the confusion.

Doug

 

[sndkick]

Worked... Thanks a million. I didn't know about those functions. I thought I had tried hex() after the first note, guess i must have had something else wrong too. Thanks.

Scott

 

[yandso]

Hey sndkick,
How are you converting back from hex?

Roj

 

[dcusick]

Roj,

Try this...

Dim HexString
Dim i
Dim tmpString

HexString = "%43%48%52%49%53"
tmpString = ""
For i = 2 To Len(HexString) Step 3
tmpString = tmpString & Chr(Val("&H" & Mid(HexString, i, 3)))
Next

Assign your value from the URL to HexString. Then the resulting value of tmpString will be your Name. In case you're wondering what's happening here's the short explanation. You are iterating through the string taking only the numbers. Then you will convert back to a character from the Hex Value of "&H" and the hex number. Hope this helps.

Doug