[wp-hackers] Why is Akismet returning more info in the $commentdata ?
zamoose at gmail.com
Sat Dec 19 05:06:04 UTC 2009
On Fri, Dec 18, 2009 at 11:31 PM, Peter van der Does <peter at avirtualhome.com
> Akismet is adding several fields to commentdata during the
> preprocess_comment filter. The function called is
> The following fields are added:
> $comment['user_ip'] = preg_replace( '/[^0-9., ]/', '',
> $_SERVER['REMOTE_ADDR'] );
> $comment['user_agent'] = $_SERVER['HTTP_USER_AGENT'];
> $comment['referrer'] = $_SERVER['HTTP_REFERER'];
> $comment['blog'] = get_option('home');
> $comment['blog_lang'] = get_locale();
> $comment['blog_charset'] = get_option('blog_charset');
> $comment['permalink'] = get_permalink($comment['comment_post_ID']);
> Why is this?
...Because all those pieces of information are useful in determining
If someone is leaving Cyrillic-encoded comments on a blog using the English
(US) locale, there's a good chance it's spam, for instance.
At least that's my read on it. Each of those pieces of info could be quite
useful in determining in a heuristic/holistic fashion the chance that a
spammer is doing the commenting.
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