On Tue, 25 May 2004 17:05:15 -0500 (CDT) "Zach Shelton" <[EMAIL PROTECTED]> wrote:
> just an idea: > > Does there exist a registry of porn site URLs similar to the ones > maintained for spam blacklists? If so, then it would be possible to check > against such a list and reject any comment that contains a link to a site > on the list... Leveraging other anti-spam resources, you could parse URLs out of comments and check their domains against the SURBL (http://www.surbl.org/), taking care to scrape out hostnames and known rediriectors. The implementation guide at http://www.surbl.org/implementation.html has more specifics. Basically, if you find an URL like http://rd.yahoo.com/*http://www.something.hotbarnyardtonermortgage.ac.uk/enlargeyourxerox, you'll want to reduce that to hotbarnyardtonermortgage.ac.uk and do a DNS lookup for the A record of hotbarnyardtonermortgage.ac.uk.sc.surbl.org. If that comes back with 127.0.0.2, the comment is suspect. The SpamAssassin team has been working on supporting this for the upcoming 3.x release. SA is written in perl but it shouldn't take much[1] to port the core of their work to PHP. hth, -- Bob [1] And no, I'm not volunteering to do it. Just sayin'...
