Question

Superbly Urgent - My cookie is disappearing!!!

Asked by: Zvika

I have a peace of code (the important parts are attached below) that worked fine for quite a while, and still works on most machines. BUT on some machines, when I type the numeric IP address it works fine, though when typing the DNS name the cookie remains empty and I'm "logged out".
Here is the code:
----------------------------------------------------------
page 1 (cookie creation):
     Response.Cookies("userID") = userID
     Response.Cookies("userID").path = "/"
     
     Response.Cookies("customerID") = rstUser("customerID")
     Response.Cookies("customerID").path = "/"

     Response.Cookies("IsAdmin") = isAdmin
     Response.Cookies("IsAdmin").path = "/"

     Response.Cookies("userLanguage") = rstUser("userLanguage")
     Response.Cookies("userLanguage").path = "/"
     
     Response.Cookies("userName") = encodedUserName
     Response.Cookies("userName").path = "/"
     Response.Cookies("userName").Expires = DateAdd("m", 3, Now())
     
     Response.Cookies("customerName") = encodedCustomerName
     Response.Cookies("customerName").path = "/"
     Response.Cookies("customerName").Expires = DateAdd("m", 3, Now())

     Response.Redirect("http://" & Request.ServerVariables("SERVER_NAME") & "/main.asp")
----------------------------------------------------------
page 2 (cookie use):
dim userID
userID           = Request.Cookies("userID")
if userID="" then
     Response.Redirect("/XmpieSite/login.asp?errorMsg=1")
end if
----------------------------------------------------------

Now, in those few machines, page 2 always redirects to login.asp with the error...
I'm using win2K server with IIS 5.0 as servers and IE5.0, 5.5 & 6.0 as client...

HELP!!!

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Asked On
2002-10-06 at 04:14:54ID20369528
Tags

cookies

,

disappearing

Topic

Active Server Pages (ASP)

Participating Experts
2
Points
0
Comments
6

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Answers

 

by: robbertPosted on 2002-10-06 at 05:23:38ID: 7316794

Try: Response.Cookies("userid").path = Request.ServerVariables("SERVER_NAME")

 

by: ZvikaPosted on 2002-10-06 at 05:31:10ID: 7316799

I found an article on MSDN (q316112) mentioning not supporting "_" on server name, which causes cookies not to be saved on client machine if the server name has "_" or any other non-alphabetic (including "." & "-", excluding "_") sign in it.

I do think that this is my problem, so I'm investigating this now, but I'll try your suggestion as well in few moments.

 

by: ZvikaPosted on 2002-10-06 at 07:39:46ID: 7316927

Robbert, your suggestion did make the IP number & DNS name consistent - now they both fail ;)

Any other suggestions?

 

by: robbertPosted on 2002-10-06 at 08:38:33ID: 7316988

Places to look at are the IIS settings (properties: (Home) Directory / Application / Enable Session State), and the browser settings (IE6: tab Privacy, IE5: I forgot; tab Security or Advanced).

BTW, you can also try session variables if you don't set an expiry date with a cookie.

 

by: ZvikaPosted on 2002-10-06 at 08:43:31ID: 7317000

OK

Here it is:
Microsoft has a known bug there, detailed at:
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q316112
The thing is, that I had computer name like: QA1_ENGLISH wile the "_" (underscore) is invalid char for domain name, as the RFC 883 specifications, so the browsers treats such domain names as unsafe, and does not let them put cookies on the client machines. Needless to say that using the IP number workaround this bug.
IE 5.5 & 6.0 has a security hole that DOES allow the cookies to be created, but a security patch (included in SP 3.0) close that hole.
That's all, I hope my expirince will shorten the next developer time in finding the problem...

Thanks anyway, Robbert

 

by: ComTechPosted on 2002-10-06 at 15:14:51ID: 7317397

This question will be placed in PAQ and points refunded.

Best regards,
ComTech
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