check if browser's cookies are enabled

Hi Sam,

 

 

If you can figure out how you want to test whether clients support session and/or persistent cookies you could probably use an iRule which sends the HTML and parses the subsequent requests. Here are a few examples found searching for 'check browser cookies enabled':

 

 

http://techpatterns.com/downloads/javascript_check_cookies.php

 

 

http://www.html-kit.com/tools/cookietester/

 

 

http://www.velocityreviews.com/forums/t73185-detect-if-cookies-are-enabled.html

 

 

The way this is done on Microsoft Office Online is that we have a page which

 

tries to set a session cookie and a permanent cookie; this page then

 

redirects to a page which tests for those cookies. If they're not both

 

present, that page then redirects to a "you need to enable cookies" error

 

page.

 

 

You can send the HTTP response using HTTP::respond and check for cookies in the request using HTTP::cookie exists.

 

 

Aaron

Thanks Aaron,

 

I've got something working for now:

 

when HTTP_REQUEST {

 

if { ([HTTP::uri] starts_with "/landingPage.form") and [HTTP::cookie exists "cookies"] } {

 

return

 

}

 

elseif { [HTTP::uri] starts_with "/landingPage.form" } {

 

HTTP::respond 301 Location "http://my.domain.com/landingPage.form" Set-Cookie cookies=true

 

}

 

}

 

This is working for now, our developers are working on a permanent solution based on a 2-stage redirect like you suggested, the only problem with this is the looping done if a browser disables cookies, but at least it protects our application layer.

 

Thanks again.

 

Sam.

That's a good start. If you used two pages you could have one set the cookie and then other allow access if the client presents the cookie(s) or send a redirect/HTTP response for clients who don't have a cookie. And by "pages" it could just be two different HTML responses sent from the iRule.

 

 

Aaron