Home | Contact Us | FAQ | Search & Site Map | Link to Us
Sign In | Join | Other 45 Sites in Network
HomeAnnouncementsFree MagazinesWhite PapersSubmit Content
Discussion GroupsASP.NETWindows FormsLanguages.NET FrameworkVisual Studio.NET
Articles.NET FrameworkASP.NETToolsWindows Forms
.NET DirectoryOpen Source ProjectsUser GroupsWeb Resources
Related Topics
Visual Basic 6SQL ServerMS AccessOther DB ProductsMS Server ProductsMore Topics ...

.NET Forum / ASP.NET / General / July 2007

Tip: Looking for answers? Try searching our database.

Is it possible to use MachineName or IP in cookie's domain parameter?

Thread view: 
Enable EMail Alerts  Start New Thread
Thread rating: 
alberthung01@gmail.com - 11 Jul 2007 09:12 GMT
Hi all,
I wrote the code below in client script block,
but I couldn't retrieve the cookie which was set in line 1.

Server1
processCookies.htm
url->http://Server1/mainSite/processCookies.aspx
------------------
document.cookie="myName=Test;domain=Server1";
alert(document.cookie);
------------------

My purpose is to share cookies between two or more web servers in my
LAN.
So if it works,I will change the domain value to Server2,
Server3...etc. in the main site processCookies page.
And then when users link to other site the cookie will also available.
Whether domain doesn't accept this kind format?

Thanks,
Albert
Michael Nemtsev - 11 Jul 2007 10:12 GMT
Hello alberthung01@gmail.com,

";" sign means the end of cookie value, so your server value is not stored,
AFAIK

I'd recommend to use the following codesnippet to store / extract cookies

/ primary function to retrieve cookie by name
function getCookie(name) {
   var arg = name + "=";
   var alen = arg.length;
   var clen = document.cookie.length;
   var i = 0;
   while (i < clen) {
       var j = i + alen;
       if (document.cookie.substring(i, j) =  = arg) {
           return getCookieVal(j);
       }
       i = document.cookie.indexOf(" ", i) + 1;
       if (i =  = 0) break;
   }
   return "";
}
 
// store cookie value with optional details as needed
function setCookie(name, value, expires, path, domain, secure) {
   document.cookie = name + "=" + escape (value) +
       ((expires) ? "; expires=" + expires : "") +
       ((path) ? "; path=" + path : "") +
       ((domain) ? "; domain=" + domain : "") +
       ((secure) ? "; secure" : "");
}

---
WBR,  Michael  Nemtsev [.NET/C# MVP].  
My blog: http://spaces.live.com/laflour
Team blog: http://devkids.blogspot.com/

"The greatest danger for most of us is not that our aim is too high and we
miss it, but that it is too low and we reach it" (c) Michelangelo

> Hi all,
> I wrote the code below in client script block,
[quoted text clipped - 14 lines]
> Thanks,
> Albert
Alex Meleta - 11 Jul 2007 10:27 GMT
Hi,

Direct writing of semicolon to cookie's value is not possible by design (http://www.quirksmode.org/js/cookies.html),
as Michael mentioned before. But it's good practice to encode string before
writing there to solve similar issues (e.g. use base-64, see Convert.ToBase64String),
coz comma is not also possible.

Regards, Alex Meleta
[TechBlog] http://devkids.blogspot.com

> Hi all,
> I wrote the code below in client script block,
[quoted text clipped - 14 lines]
> Thanks,
> Albert
alberthung01@gmail.com - 11 Jul 2007 15:49 GMT
Michael,Alex,
Thanks for your help and information!
Now I can set cookie successfully as long as I don't specify the
computer name as domain.
And I found the article describe which are invalid domain value.
http://www.ietf.org/rfc/rfc2109.txt
* The value for the Domain attribute contains no embedded dots or
    does not start with a dot.

* The value for the request-host does not domain-match the Domain
    attribute.

So the way I try to use to share cookies between diffenent web server
is impossible.
I'll try another way,thanks!

Free Magazines

Get these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...

Oracle MagazineNetwork ComputingComputer WorldBio-IT WorldeWeekInformation WeekInfosecurity
 
Sign In
Join
My Latest Posts
My Monitored Threads
My Blog
My Photo Gallery
My Profile
My Homepage

Start New Thread
Enable EMail Alerts
Rate this Thread



©2008 Advenet LLC   Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.