Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
Is there a way? Yes.

It looks a bit like:

#!/usr/bin/perl -w use strict; use CGI; my $C = CGI->new; if($C->referer eq 'some URL'){ process_page(); } else{ bounce_page(); }
Suggested reading: perldoc CGI

update: I should've mentioned what dws mentions below, that referer is not always present or accurate (although one can make a case for why browsers should *not* strip/alter this header). Your other solution is to generate a session ID or form key on the originating page (as a hidden field) that must be submitted along with the form or used as part of the URL. But that will only work if you are using forms, not just plain links. You might be able to get it to work with some JavaScript trickery, but to my way of thinking that's worse than simply denying access to people who munge referer headers.

In reply to Re: Getting the url of referring page by ichimunki
in thread Getting the url of referring page by Anonymous Monk

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others musing on the Monastery: (7)
    As of 2015-12-01 23:33 GMT
    Find Nodes?
      Voting Booth?

      My keyboard shows this many letters:

      Results (29 votes), past polls