Captcha (Visual Confirmation) for comments/registration/reporting/login/ecard

[Sami]

Captcha ver 3.0
As I see , we have more than 240 downloads (till now) from Captcha (Visual Confirmation) for adding comments mod by Abbas Ali , yes it's a great mod
(IMO it should goes to core)
So here is the mod as a plugin ... Enjoy

Requirement:
===========
- GD 2.x (2.0.28 or later is recommended) with Freetype support
- Better compatibility with php 4.3.5 or later

Installation:
==========
0. Uninstall any older version of this plugin
1.Copy captcha folder to your plugins folder
2.Use plugin manager to install it
3.Copy captcha.php to gallery root

feature:
=======
- Captcha for Comment
- Captcha for Registartion
- Captcha for Report to admin
- Captcha for login
- Captcha for Ecard


Settings:
========
-You can set which group shouldn't see captcha on each page
    if you are using custom group name or using bridge then you should use your custom group name or bbs's group name
-You can set how many secounds should pass before we delete old records from database
-You can set captcha image setting under captcha.php
More detail under Readme.txt

language:
========
- Italian Thanks to lontano
- Dutch Thanks to Hein
- French Thanks to spikeweb
- German Thanks to m@rk
- Brazilian portuguese Thanks to Bonato
- Spanish thanks to pepemosca
- Turkish thanks to Benim

Update:

v3.0 - 2007/11/21 7:30 AM GMT
- Rerwite whole plugin engine (improvement)
Captcha code now stores to db instead of session


Have an issue with plugin ? can't login to disable it ?
Manually disable captcha plugin:
=======================
- Use a mysql tool (e.g. phpmyadmin)
- Drop xxx_plugin_captcha table
- Open xxx_plugins table of gallery DB (xxx_ is your table prefix)
- Delete CAPTCHA row

Don't see captcha in registration page?
check this thread:
http://forum.coppermine-gallery.net/index.php/topic,36319.msg225008.html#msg225008

fixes:
====
- works with bridged gallery to SMF

Added language:
===============
- Turkish thanks to Benim

[Abbas Ali]

(IMO it should goes to core)

It has been added to the core (cpg1.5)

[Sami]

Cool

[garry]

Very useful plugin! Thanks a lot!

[garry]

PS There is some bug... js-error appears when displaying normal_image - new window with large image doesn't open by click (MSIE 5.5). But if captcha-plugin installed as described in http://forum.coppermine-gallery.net/index.php?topic=29564.0 everything is OK.

[ryback]

It seems not to be working in Mozilla FireFox. :-(
IE is OK

[Sami]

@garry And ryback
Would you please post a link to your galleries?

[Nibbler]

I don't understand how this plugin is supposed to prevent bots posting comments.

[ryback]

my gallery - http://www.fotecka.net

[Sami]

@Nibbler:
I don't know how bots deal with forms !
plugin will disable  OK button until you enter correct code and then it will become enable

[garry]

@garry And ryback
Would you please post a link to your galleries?

Link to my gallery is in my profile. But now it's installed as described in http://forum.coppermine-gallery.net/index.php?topic=29564.0

[Sami]

@ryback:works fine for me in both FF and IE !

[Sami]

@Nibbler: I've got your point , Bots can simply using myform.submit() command so I should use server-side code verification
@All:this plugin has a major bug , do not using it !!! sorry for wast of time !
Update(new version bug fixed):
check the first post

[Nibbler]

Bots don't use javascript atall. You can use the page_start hook to check for the comment being posted and verify it from there.

[Sami]

Yes , thank you

[Sami]

New version , Bug Fixed 

[Nibbler]

Still no good. You need to check for the comment being submitted, not the code.

[Sami]

checking of $_POST['msg_body'] could be enough?
As I see under orginal mod Abbas checked $_POST['event'] instead

[Sami]

Announcement:
New version of plugin with a bug fixed released
The bug cause the Blank page (white page) after submitting an empty comment to db_input.php

[mEErEck]

Hello, thanx for great plugin. Do you think it will be possible to do confirmation for not registered users only?
Regards M.