vBulletin LTS

Keyword weight based spam detector
Mod Version: 0.1.0, by HuangA

I coded this one because I constantly had to moderate and / delete them lengthy lame cell phone ads on vBulletin.com's forums and my own forums. You know, buy iphone, ipod touch, noika blah blah blah sony ericsson blah blah blah etc. etc. etc. email us, we're legitimate business in a country you've never heard of, blah blah blah spam.

While Akismet does work on filtering them out, some times they still leak through.

I know there's two other keyword based tools that automatically adds things to moderation queue (One from SirAdrian and one from tweakmonkey), but it doesn't work too well for me, because I run an iPhone / iPod Touch site and I can't have those keywords on auto spam for simply appearing. So, here's what I did for mine...

What does this product do?

• Adds 1 vBulletin Options setting group, with 4 settings
• Allows you to define a list of keywords with associated score
• Allows you to set a threshold for automatic moderation
• Allows you to set a threshold for automatic rejection
• Allows you to set a post count limit for posts to be scanned
• Adds 1 plugin which gets ran at newpost_process
• Adds 1 plugin which gets ran at editpost_update_process

How does it work?
1) You configure your keyword list, and score weight. For example, I use this list:
The list basically means each time the plugin sees "Noika", it will get a score of 0.5, $, 0.5, etc. etc. A tally of all the score is totaled, and
2) You configure your moderation score, for example, I use 50.
3) You configure your rejection score, for example, I use 100.
4) You configure your exemption post count, for example, I use 5.

When a new post is being created (this could be a thread, or a reply, doesn't matter, they both trigger newpost_process hook), the plugin will count how many times each keyword appears, and total the score. If it is higher than or equal to the moderation score, it will tuck the post into moderation queue. If it is higher than or equal to the rejection score, a standard vBulletin error message is shown to the user.

How much overhead does this add? Realistically, not much... depending on amount of keywords used, I'd say most likely under 0.05 seconds of your CPU time for each post. If you are really that worried, you can set your exemption post count to something lower, and so lesser posts are scanned. Default is 5 right now.

This have been tested on 3.7.0 Beta 5, and 3.7.2. I see no reason why it would not work on 3.6.x series, too.

Change log
0.0.0 => 0.1.0

• Changed error message to use vBulletin error message screen instead of die()
• Added option for omitting after certain post count (default 5)
• Added default values to options
• Fixed options not appearing after product import (I forgot to export them for 0.0.0)
• Added scanning for editing post (AJAX doesn't seem to give error... I'll work on that for 0.1.1 later)