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Enhanced captcha's [message #161058] Thu, 12 November 2009 01:16 Go to next message
naudefj is currently offline  naudefj   South Africa
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FUDforum 3 supports graphical captchas. See new setting in the Admin Control Panel:

Global Settings Manager
Use Captcha images:
Use a graphical captcha instead of a text captcha (only if your PHP has GD support).


The font of the graphical captcha can be changed by simply downloading truetype fonts from the Internet and copying them into the forum's /images/fonts directory.

In addition to this, one can define captcha plugins to create a custom captcha for your site. For example, you may want to ask for a registration code, your gang's secret password or use a mathematical captha.

We've also included a RECAPTCH plugin with the forum for users that wants to use the recaptcha service or just as an example of how easy it is to code such plugins.
Re: Enhanced captcha's [message #161482 is a reply to message #161058] Wed, 30 December 2009 01:43 Go to previous messageGo to next message
hlopetz is currently offline  hlopetz   Russian Federation
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Frank,

1)

is here a way to show captcha test on a message submit or a reply?

it seems like some people register by hand and then -- auto-login and spread the spam (

2)

can i implement a way to auto-test browser by JS without asking user? it's something like anti-captcha (see blog.fili.nl/articles/the-anti-captcha-challenge/ )

i don't want to ask user "Please enter the code shown below" it should be parsed automatically.

Andrey
Re: Enhanced captcha's [message #161483 is a reply to message #161482] Wed, 30 December 2009 02:09 Go to previous messageGo to next message
naudefj is currently offline  naudefj   South Africa
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hlopetz het op Wed, 30 December 2009 08:43 geskryf:
is here a way to show captcha test on a message submit or a reply?


The forum can already show captchas for anon posting (if enabled). It won't be too difficult to change the condition to show it every time.

hlopetz het op Wed, 30 December 2009 08:43 geskryf:
it seems like some people register by hand and then -- auto-login and spread the spam (


The next release will also be able to queue a user's first N posts for approval. For more spam prevention tips, see Fighting spam.

hlopetz het op Wed, 30 December 2009 08:43 geskryf:

can i implement a way to auto-test browser by JS without asking user? it's something like anti-captcha (see blog.fili.nl/articles/the-anti-captcha-challenge/ )


Sure, write a plugin, make the challenge field hidden and add some JS to auto fill the field.
Re: Enhanced captcha's [message #161486 is a reply to message #161483] Wed, 30 December 2009 05:33 Go to previous messageGo to next message
hlopetz is currently offline  hlopetz   Russian Federation
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thanks!

naudefj Wed, 30 December 2009 02:09
hlopetz het op Wed, 30 December 2009 08:43 geskryf:

can i implement a way to auto-test browser by JS without asking user? it's something like anti-captcha (see blog.fili.nl/articles/the-anti-captcha-challenge/ )


Sure, write a plugin, make the challenge field hidden and add some JS to auto fill the field.


okay, i'll hide the "Please enter the code shown below" row and field by JS.
Re: Enhanced captcha's [message #165771 is a reply to message #161486] Wed, 10 August 2011 10:35 Go to previous messageGo to next message
audiodef is currently offline  audiodef
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I was looking for an appropriate place to post my question, and this looks like it.

I just installed FUDforum (MUCH better than phpBB. So much so, it's not even funny). It seems like the graphical captcha option doesn't work even with gd compiled into PHP. When I registered on fudforum.org just now, I see that these forums don't use the graphical captcha option.

Did I miss something? Is the graphical captcha supposed to work?
Re: Enhanced captcha's [message #165772 is a reply to message #165771] Wed, 10 August 2011 12:24 Go to previous messageGo to next message
The Witcher is currently offline  The Witcher   United States
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Is it enabled in the"ACP Global Settings", and have you rebuilt all your themes?

Quote:
Use Captcha images:
Use a graphical captcha instead of a text captcha (only if your PHP has GD support).



"I'm a Witcher, I solve human problems; not always using a sword!"
Re: Enhanced captcha's [message #165773 is a reply to message #165772] Wed, 10 August 2011 12:33 Go to previous messageGo to next message
audiodef is currently offline  audiodef
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Yes, to both. Is there something else I could have missed?
Re: Enhanced captcha's [message #165774 is a reply to message #165773] Wed, 10 August 2011 12:53 Go to previous messageGo to next message
The Witcher is currently offline  The Witcher   United States
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audiodef wrote on Wed, 10 August 2011 11:33
Yes, to both. Is there something else I could have missed?

Not that I can think of off hand! I just tried switching the captcha on and off through the ACP and had no problems on 2 different installations so it should be available for you.



"I'm a Witcher, I solve human problems; not always using a sword!"
Re: Enhanced captcha's [message #165803 is a reply to message #165771] Fri, 12 August 2011 08:13 Go to previous messageGo to next message
naudefj is currently offline  naudefj   South Africa
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audiodef wrote:
When I registered on fudforum.org just now, I see that these forums don't use the graphical captcha option.


GD is disabled on this site, that's why you see the text captcha here.

If GD is enabled (check with php_info), and graphical captcha is enabled in the Global Settings Manager, you should see it on your forum.
Re: Enhanced captcha's [message #165806 is a reply to message #165803] Fri, 12 August 2011 10:07 Go to previous messageGo to next message
audiodef is currently offline  audiodef
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Like I said, GD is compiled into PHP and graphical captcha is enabled, but no captcha appears unless I turn off graphical captcha.

I'm think I should file a bug report, unless someone knows about something else I need to check.

System info:

FUDforum version: 3.0.2
PHP version: 5.3.6-pl0-gentoo

[Updated on: Fri, 12 August 2011 10:08]

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Re: Enhanced captcha's [message #165807 is a reply to message #165806] Fri, 12 August 2011 13:54 Go to previous message
naudefj is currently offline  naudefj   South Africa
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Probably a PHP error or warning when the captcha is generated (theme/default/captchaimg.php).
Please enable PHP error logging to trap it.
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