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I was thinking about an easy to determine if cookies are set or not in ASP. I began

thinking about how the Session ID is dependent upon a cookie - right?



Well, I disabled cookies in Firefox and then loaded a webpage that displayed

Session.SessionID. Viola, I got one! And then, I reloaded the page. And then, I noticed

that the SessionID incremented by one!



This still isn't yet a one-page method of detecting if cookies are enabled or not (like

BrowserHawk does), but are there any possibilities here?



Vic


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"Victor" <vic@vic.com>wrote in message

classicasp.aspfaq.com/general/how-do-i-detect-enabled-cookies/javascript.html">classicasp.aspfaq.com/general/how-do-i-detect-enabled-cookies/javascript.html



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Mike Brind





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Victor wrote on Mon, 23 Oct 2006 15:50:53 -0400:



You can't do it in a one-page method - with ASP, everything is executed

before being sent to the client. How do you know if the page is the first

one being loaded by the browser or not? You could check the referer to see

if it's from another page on your own site, but that won't always be

reliable (referer could be empty due to being removed by an intermediate

proxy for instance).



All the SessionID incrementing tells you is that a new Session ID was

generated because no Session ID cookie was passed into the page. This will

happen when cookies are disabled, or the page is the first one loaded by the

browser on your site, or the application pool has just been recycled and all

Sessions have been cleared, or the previous Session ID cookie has expired.

(the last two examples would however still have Session ID cookies being

sent by the browser, but I seem to remember they can't be read by an ASP

page anyway because IIS removes them from the Cookie header before the ASP

page is processed).



Dan





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Victor wrote on 23 okt 2006 in microsoft.public.inetserver.asp.general:



The session cookie [and other cookies] being set can only be detected

serverside on the second pass of your requested one-page:



<%@ Language=VBScript %>

<% Response.Expires = -100 %>

<%

if session("yes")="yes" then

%>

Session cookie was set

<%

elseif request.form("time")="first" then

%>

Session cookie seems UNsettable

<%

else

session("yes")="yes"

%>

<form>

<input type='hidden' name='time' value='first'>

<input type='submit' value='Press me please.'>

</form>

<%

end if

%>





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Evertjan.

The Netherlands.

(Please change the x'es to dots in my emailaddress)

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