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Passing HTTP_REFERER manually

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Anthonyjm

Anthonyjm

Programmer
Aug 30, 2005
3
US
Is there anyway to manually pass a value for $ENV{'HTTP_REFERER'} to a page a user is forwarded to?

I wrote a Perl CGI script that validates base on username and password and forwards to user to different sites. Problem is one of these sites uses the HTTP_REFERER variable to validate users from my site. Because I use:
print "Location: $url\n\n";
to forward the users, HTTP_REFERER is left blank.

Any ideas would be welcome.
(Great site, btw)
Anthony
 
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maybe you can set it in Javascript?

this is how you can access it:-

//Get the value of the referer request header
String reflink = request.getHeader("referer");


Kind Regards
Duncan
 
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The url doesn't matter. It could be anything, for example. The script just doesn't send a HTTP_REFERER value.

I don't think I can use javascript because the "Location:" takes the place of the header. So it basically reads this one line and forward the user to whatever URL is indicated.

Thanks for the replies,
Anthony
 
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From the documentation I've read, it doesn't look like redirecting the page ever sends the HTTP_REFERER variable.

Why not do something like the following:

Code: 
<html>
<head>
<script type="JavaScript">
function redirectPage()
{
    document.forms[0].submit();
    return true;
}
</script>
</head>
<body onLoad="redirectPage();">
<form action="$url">
</form>
<h2>Redirecting to new website</h2>
</body>
</html>

Kind of a messy implementation, but it basically submits a form to the new URL as soon as the page finishes loading. Thus, getting the HTTP_REFERER environment variable to appear.

- Rieekan
 
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Thanks, but I was just hoping to avoid the user seeing any intermediate pages. I read through the documentation too, I was just hoping there was a way around it. Thank again for the feed back.

Anthony
 
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You could take out the Header tag (I just used that when I did my test of the page) and the only thing the user will see is a blank page for an instant. Then they'll be taken to the new URL.

- Rieekan
 
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