[geeklog-users] Comment Spammers

[Tony Bibbs]

<snip>
[1] And no, I'm not volunteering to do it. Just sayin'...

</snip>

Damn ;-).  Seriously, if anybody is interested in doing this let us 
know.  This would definitely raise your status in geekdom.  Also, if we 
make this an OO solution, I could make use of it in GL2 and the library 
could be released to other CMS's benefits.

--Tony

Bob Apthorpe wrote:


>On Tue, 25 May 2004 17:05:15 -0500 (CDT) "Zach Shelton" <mail at zachofalltrades.net> 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'...

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>