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Enhanced Image Captcha - Stop bots from signing up! Details »
Enhanced Image Captcha - Stop bots from signing up!
Mod Version: 2.2, by steadicamop (Member) steadicamop is offline
Developer Last Online: Dec 2014 I like it Show Printable Version Email this Page

This modification is in the archives.
vB Version: 3.7.6 Rating: (23 votes - 4.87 average) Installs: 292
Released: 07 Jun 2008 Last Update: 09 Jun 2008 Downloads: 3045
Not Supported Uses Plugins Auto-Template Additional Files Translations  

Title : Enhanced Image Captcha

Version : 2.2b

VB Versions : Currently working and tested on 3.8.4 (as of Dec 2014)

Coder : Andy Calderbank & Jason Williams

Purpose : Add extra Image Verification to the registration process, using an alternative system to the Captcha system.

The Enhanced Image Captcha system is a unique system using images versus text to stop spammers signing up to your forum. The script automatically detects images and uses the filename as the title, making adding new images extremely simple. To further improve security, the images are passed through a script which means that none of the images on the screen have file names - and cannot be associated to the question by title alone - and cannot be viewed by trying to access the images directly.

Please note, there is a .htaccess file within the images directory, to keep security tight, this must be kept, without it bots are able to scan the images and make a match, I understand not every server can utilist .htaccess but cannot get around this.

Important : This has been tested on 3.7 and 3.6.2 - as far as I know this should be backwards and forwards compatible.

My thanks go to all the guys who have helped with this, all the suggestions and feedback, all has been take on board and where necessary included in this new version - members in particular are : King Kovifor, Danny.VBT, Lynne and RCK.

Also thanks to ogameclub for the Turkish translated version.

I must thank Opserty too for their hard work in making me understand where I was going wrong!!

New features from original 1.11 release!!

Admin settable options:
  • Number of images to display
  • Path to image directory (so you can change if you prefer)
  • Resize image between 50% - 150% of original image
  • Number of images to display before a line break (see History)
  • Enable/Disable
Demo : http://www.steadiforum.net/register.php

I hope this is help to the VBulletin community as I know this is a growing problem. I don't fancy the thought of trawling through hundreds of new members deleting stupid usernames and spam posts.

Installation :
  1. Upload show.php to your forum root directory (or wherever register.php is).
  2. Upload the images/verification directory, this can be moved to the forum root or have the verification name changed, but needs updating in the Enhanced Image Captcha AdminCP options.
  3. Import Product - product-enhanced_image_captcha.xml
  4. Make sure that you check that the Images Path is correct in AdminCP -> VBulletin Options -> Enhanced Image Captcha.
  5. You can also select how many images and what size from the original you would prefer.
Upgrading:
  1. Import Product - product-enhanced_image_captcha.xml - overwrite if necessary.
  2. Set any options you need in AdminCP -> VBulletin Options -> Enhanced Image Captcha.
Upgrading from v1.xx :
  1. Remove the images/verification directory and all images inside.
  2. Uninstall the product - Enhanced Captcha Image Verification - important for phrase and template removal!
  3. Upload show.php to your forum root directory (or wherever register.php is).
  4. Upload the images/verification directory, this can be moved to the forum root or have the verification name changed, but needs updating in the Enhanced Image Captcha AdminCP options.
  5. Import Product - product-enhanced_image_captcha.xml - overwrite if necessary.
  6. Make sure that you check that the Images Path is correct in AdminCP -> VBulletin Options -> Enhanced Image Captcha.
  7. You can also select how many images and what size from the original you would prefer.
Requirements : GD Libraries installed

File uploads : 53 (including images)
Files to Import : 1
New Templates : 2
New Phrases : 15
Uses Hooks : 1
New Queries : 0

History :
v2.0b
  • Original Beta release
v2.1b
  • Added Enable/Disable Option
  • Also added Turkish Translated version
  • Added new image page
v2.2b
  • Bug Fix : Opera browsers, any number over around 8 images disappears over side of screen, added number of images before line break function to stop this happening
Don't forget you don't have to use the provided images - you can customise these to any you wish - I've used ones that are hopefully universal and everyone will recognise.

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  • This modification may not be copied, reproduced or published elsewhere without author's permission.
Similar Mod
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  #76  
Old 05 Nov 2008, 05:51
baghdad4ever baghdad4ever is offline
 
Join Date: May 2007
Real name: husam
hi every one

how can i enlarge the name of picture

Please click the image above that is=name of picture


thanks
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  #77  
Old 06 Nov 2008, 03:13
ShackMaster ShackMaster is offline
 
Join Date: Apr 2006
I upgraded MySQL and PHP today and now only get red x's. Had to disable it. Oh well. Too bad it is no longer supported.
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  #78  
Old 06 Nov 2008, 04:33
columbusgeek's Avatar
columbusgeek columbusgeek is offline
 
Join Date: Sep 2007
red X's? You prolly have a bad image path or your new php compile is missing libraries such as GD or possibly truetype font.

Basic server admin stuff.
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  #79  
Old 25 Nov 2008, 15:29
steadicamop's Avatar
steadicamop steadicamop is offline
 
Join Date: Jul 2004
Real name: Jason Williams
Guys,

I've been out of the loop for several months, had lots of personal issues to address but now I have more free time I can get back to the job at hand and try to resolve any issues that people may have had installing and running this. When I get chance in a few hours I will go back through this thread and find any unanswered questions and do my best to get everyone up and running if they had issues. I also have a few unanswered PM's so I apologise for the delay in getting back to these, I will answer all of these tonight.

Stay tuned, I plan to upgrade this to the latest version of VBulletin in the next few weeks.

Thanks for your support guys,

Jason
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  #80  
Old 30 Nov 2008, 23:37
neutroncore neutroncore is offline
 
Join Date: Jul 2008
thanks for your efforts!

Last edited by neutroncore; 30 Nov 2008 at 23:38. Reason: just realised new posts are at the bottom, so missed your post Jason, till now
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  #81  
Old 13 Dec 2008, 14:46
rolfw1 rolfw1 is offline
 
Join Date: Nov 2005
Real name: Rolf
Love it, clicked "Installed".

Thanks.
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  #82  
Old 13 Dec 2008, 18:42
JVSP JVSP is offline
 
Join Date: Jul 2007
Does this not work with safari? The images show up as question marks.

Also the demo above does not even have this hack on it.
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  #83  
Old 20 Dec 2008, 07:14
rob01 rob01 is offline
 
Join Date: Sep 2008
Real name: robert
is there a way for making this work for multi languages?
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  #84  
Old 30 Dec 2008, 10:12
Gerald_D Gerald_D is offline
 
Join Date: Apr 2007
Is there an alternative demo site for this hack? (the site listed above no longer has it)
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  #85  
Old 03 Jan 2009, 10:59
rbecking rbecking is offline
 
Join Date: Dec 2008
Does this work in 3.8?
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  #86  
Old 03 Jan 2009, 11:36
steadicamop's Avatar
steadicamop steadicamop is offline
 
Join Date: Jul 2004
Real name: Jason Williams
That I have yet to test as I've just upgraded to 3.8 myself, will be trying it soon ... this is also the reason the demo site doesn't work, as it's been removed in the upgrade.

Sorry for dragging my feet with this ... being out of work means you have more time, but more time needed to find another job

Watch this space!
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  #87  
Old 05 Jan 2009, 18:02
steadicamop's Avatar
steadicamop steadicamop is offline
 
Join Date: Jul 2004
Real name: Jason Williams
Quick update on this .. I have just tested this on 3.8 RC1, seems to have no problems at all .... the demo should be back up and running now, I will try and change this over to 3.8 compatible now.
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  #88  
Old 05 Jan 2009, 22:25
rolfw1 rolfw1 is offline
 
Join Date: Nov 2005
Real name: Rolf
Originally Posted by fxlr8 View Post
Does this not work with safari? The images show up as question marks.

Also the demo above does not even have this hack on it.
Works fine in safari, just tested it on my site.
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  #89  
Old 05 Jan 2009, 23:21
columbusgeek's Avatar
columbusgeek columbusgeek is offline
 
Join Date: Sep 2007
The images show up as question marks.
Why not look at the empty image urls and see what is wrong?
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  #90  
Old 06 Jan 2009, 11:12
steadicamop's Avatar
steadicamop steadicamop is offline
 
Join Date: Jul 2004
Real name: Jason Williams
That is usually a sign of the images being in the wrong location, the other possibility is that the GD libraries are not installed on your PHP version, if you check phpinfo() that usually gives some indication whether they are installed or not. Sadly I've not got the experience to work with Imagemagik, if anyone could help on this front, I'd be grateful!

Thanks,

Jason
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