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NoSpam! - an alternative to CAPTCHA images Details »»
NoSpam! - an alternative to CAPTCHA images
Version: 3.0, by antialiasis antialiasis is offline
Developer Last Online: Nov 2013 Show Printable Version Email this Page

Category: Miscellaneous Hacks - Version: 3.6.x Rating:
Released: 08-23-2006 Last Update: 06-22-2008 Installs: 1568
Uses Plugins Auto-Templates
 
No support by the author.

This hack is for vBulletin 3.6.x. For 3.5.x, please use the one provided in this thread. If you are using 3.7.x, you must use the one in this thread.

This simple hack is meant as a replacement for the default CAPTCHA system in vBulletin. There are two main reasons one might want to do this: firstly, new technology is constantly being developed to crack CAPTCHA images and make spam accounts anyway, and secondly, the more secure the CAPTCHA, the more difficult it is for genuine users to tell what the numbers in the image are. There is also the issue of visually impaired users, and the fact that not all servers are capable of generating CAPTCHA images.

So what does this hack do instead? It asks a question. Any question you want. That's the best part: YOU make up the questions, which means that every forum is unique, which means that it is impossible for spambots to be simply programmed to bypass it at all forums with the hack installed. You can make one or many questions - if you make many, the hack will pick one at random when a guest attempts to register, search, post or send mail through the Contact Us form. Their input is compared with your specified answer, and voil?, if they get it right they're pretty much guaranteed to be human. If they get it wrong, they're given an error message.

It doesn't have to be a complicated question. Heck, you can just make it "Please type 'blah' into this box." Or you can go with inserting a simple image with HTML and ask what is shown on the image. Or you can ask them to tell you two plus two. It's up to you. In fact, this can also be used as a means of forcing people to read the rules by asking for a certain password found there, or if your forum focuses on a specialized subject, ask a question concerning the subject that all your genuine users will be able to answer, but a random troll or "CAPTCHA-sweatshop-reader" will be scratching their head over.

It's simple to install, too: just one product to import, and that's it.


VERSION HISTORY:

3.0: Added functionality to allow users to specify which pages should use NoSpam!.
2.0: Extended the NoSpam! functionality to guest posts, guest searches and guest "Contact Us" in addition to registration.
1.1: Made template edit automatic (with thanks to Cole2026), added ability to have more than one answer to each question, and made answers case insensitive. To upgrade, I recommend undoing the template edit so you won't have to worry about it anymore (replace $nospamfield in the template register with $imagereg, or if you added $nospamfield above $imagereg, just remove $nospamfield altogether), and then reimport the product through the Admin CP (making sure that Allow Overwrite is set to On).
1.0: Initial release.


INSTALLATION:

Please download NoSpam!.zip, not product-nospam.xml, for the tested version. product.nospam.xml is NoSpam! 4.0 adapted blindly to 3.6, i.e. by editing the XML file for the 3.7 version without actually testing it on a 3.6 board. Theoretically it should work, but I cannot guarantee it at this time. If you download NoSpam!.zip and unzip it, it will contain another file called product.nospam.xml, which you should use.

1. Import product-nospam.xml through the Admin CP product manager.
2. Go to your vBulletin options in the Admin CP and select NoSpam! Settings. Once there, turn the system on and input your questions and answers according to the instructions there.

The system should now be functional and running.


UNINSTALLATION:

Just uninstall the product through the Admin CP.


SUPPORT:

Full support will be given here in this thread. All suggestions are welcome.

Thank you and please click "Mark as Installed" if you like it.


If NoSpam! is not working for you or you are looking for something a little different, you might want to check out Advanced Textual Confirmation.

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  • This modification may not be copied, reproduced or published elsewhere without author's permission.

Comments
  #382  
Old 02-21-2007, 01:22 AM
bjf123 bjf123 is offline
 
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I just added it to my forum. We'll see if the bogus registrations stop.
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  #383  
Old 02-21-2007, 07:41 PM
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antialiasis antialiasis is offline
 
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Quote:
Originally Posted by mrgrimes View Post
Hi. I followed the instructions in integration.txt but on testing the form I got this error: 'Fatal error: Cannot redeclare trim_array() (previously declared in /var/www/citfou_vbulletin/global.php(356) : eval()'d code:43) in /var/www/citfou_vbulletin/includes/functions_newpost.php(360) : eval()'d code on line 13'
Any ideas?
Remove this bit from the code you added into the plugin on global_start, and you should be fine:

Code:
            function trim_array(&$answer)
            {
               $answer = trim($answer);
            }
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  #384  
Old 02-22-2007, 05:01 AM
Top Nurse Top Nurse is offline
 
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I'm going to add that hack to our production forum sometime this weekend as we have a lot of Spanish readers who can test the system for us. Let you know how it flies.

Quote:
Originally Posted by derfelix View Post
well in your case it was ok.. but i installed russian, english and simple chinese so the users wouldn't understand the questions in the different languages and be afraid to answer..

still didn't test it on a live system though

Felix
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  #385  
Old 02-25-2007, 02:42 PM
SPEED1 SPEED1 is offline
 
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Awesome!! Installed. Thank you!
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  #386  
Old 02-28-2007, 02:08 PM
old_expat old_expat is offline
 
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Quote:
Go to the register template and try manually finding $imagereg and adding $nospamfield above it.
For those new to vBulletin .. where is the "register template" i.e. which directory. I can't find anything except register.php
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  #387  
Old 02-28-2007, 04:56 PM
BACANERIA BACANERIA is offline
 
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thanks but ill be instaling this later
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  #388  
Old 02-28-2007, 09:57 PM
blockbusted blockbusted is offline
 
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Great hack! Thanks!

*clicks install
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  #389  
Old 02-28-2007, 10:44 PM
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antialiasis antialiasis is offline
 
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Quote:
Originally Posted by old_expat View Post
For those new to vBulletin .. where is the "register template" i.e. which directory. I can't find anything except register.php
That's the PHP files; most hacks don't require you to edit those. The templates are located in the Admin CP; look under Styles and Templates. The template you should edit is called simply register.
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  #390  
Old 03-02-2007, 05:29 PM
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chkdgate chkdgate is offline
 
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Has anyone tried it with 3.6.5 yet?
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  #391  
Old 03-02-2007, 07:27 PM
phill2003 phill2003 is offline
 
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Quote:
Originally Posted by chkdgate View Post
Has anyone tried it with 3.6.5 yet?
From what I can see not a lot has changed with 3.6.5 so I would be amazed if it did not work...
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