Proxy server help

[Kerry Bouchard]

    For the past couple of years, the TCU Library has been using a transparent 
proxy that works in the manner described below; it is documented at:

    http://lib.tcu.edu/www/staff/bouchard/cgi_logon/cgi_logon

                                Kerry Bouchard, K.BOUCHARD at TCU.EDU
                                Assistant University Librarian for Systems
                                Mary Couts Burnett Library, TCU


>But the major loophole in any such solution is that I have no control over
>the documents generated by the database vendor.  Any HTML file with an
>absolute URL would cause the browser to bypass the gateway and get "access
>denied" by the vendor's server.  I think I need to parse every HTML file,
>and rewrite every tag that might contain a URL (eg. "HREF=", "BACKGROUND=",
>"ACTION=", etc). This would be a slow and error-prone task.  And because a
>module cannot filter the output of a response handler (yet), I'll probably
>have to rewrite mod_proxy.
>