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checking referer

Sep 8, 2002, 11:30 PM
robyone
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Sep 8, 2002, 11:30 PM
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checking referer
I'm having problems with a few clients ... but I can't get the reason. Some clients get an invalid referer message even if they are clicking from the same domain. Others are working correctly. ideas?

Code:
$REFERERCHECK = $ENV{'HTTP_REFERER'};
$REFERERCHECK =~ s/(http:\/\/|https:\/\/)//g;
@GETVALIDREF = split (/\//, $REFERERCHECK);
&results("Invalid Referer") unless ($ENV{'SERVER_NAME'} eq $GETVALIDREF[0]);

Thanks
Sep 9, 2002, 2:43 AM
Paul
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Sep 9, 2002, 2:43 AM
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Re: [robyone] checking referer In reply to
>>
$REFERERCHECK =~ s/(http:\/\/|https:\/\/)//g;
<<

Could be:

$REFERERCHECK =~ s|http://||ig;

Hehe sorry I couldn't resist that. Anyway, if people are using a firewall they may not be sending a referer.

Try putting:

$ENV{'SERVER_NAME'} and $GETVALIDREF[0]

...in the error message and get people to tell you what it says.

Last edited by:

Paul: Sep 9, 2002, 2:44 AM
Sep 9, 2002, 3:17 AM
Andy
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Sep 9, 2002, 3:17 AM
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Re: [robyone] checking referer In reply to
From previous experience, https:// servers don't send a HTTP_REFERER value....which is quite a bummer sometimes...

Your best bet is to print the value stored in $REFERERCHECK.

Hopefully I didn't repeat too much of what Paul said Tongue

Andy (mod)
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Sep 9, 2002, 3:21 AM
robyone
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Sep 9, 2002, 3:21 AM
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Re: [Andy] checking referer In reply to
ok. thanks ... i did not consider firewalls settings.

:(

bye
Sep 9, 2002, 3:29 AM
Paul
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Sep 9, 2002, 3:29 AM
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Re: [robyone] checking referer In reply to
Oops regarding that regex I posted, I didn't notice the https so you'd need:

$REFERERCHECK =~ s|https?://||ig;

But as Andy said, the referer won't be available using a secure connection (although it appears it is with NS but not IE)
Sep 9, 2002, 3:33 AM
Wil
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Sep 9, 2002, 3:33 AM
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Re: [Paul] checking referer In reply to
In Reply To:
But as Andy said, the referer won't be available using a secure connection (although it appears it is with NS but not IE)

Hm. That's interesting. How did you discover this, or did you read it somewhere? I wander if it's available with Mozilla, Galleon, etc. etc.

- wil
Sep 9, 2002, 3:38 AM
Paul
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Sep 9, 2002, 3:38 AM
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Re: [Wil] checking referer In reply to
I think Dan mentioned it in another thread.