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Enhanced Image Captcha - Stop bots from signing up! Details »» | |||||||||||||||||||||||||||
Enhanced Image Captcha - Stop bots from signing up!
Developer Last Online: Dec 2014
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:
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 :
File uploads : 53 (including images) Files to Import : 1 New Templates : 2 New Phrases : 15 Uses Hooks : 1 New Queries : 0 History : v2.0b
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Comments |
#82
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Love it, clicked "Installed".
Thanks. |
#83
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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. |
#84
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is there a way for making this work for multi languages?
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#85
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Is there an alternative demo site for this hack? (the site listed above no longer has it)
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#86
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Does this work in 3.8?
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#87
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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! |
#88
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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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#89
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Works fine in safari, just tested it on my site.
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#90
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Quote:
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#91
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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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