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#1 2016-01-17 12:46:23

artoodetoo
Member
From: Far-Far-Away
Registered: 2008-05-11
Posts: 226

[MOD] Copyable captcha

Download from: http://fluxbb.org/resources/mods/copyable-captcha/

This is a Captcha you can easily copy and paste

We use it on Russian FluxBB forum. It was hard to think of a name, so it is called by the most visible feature.

Main principles of this script:

  • Registration bots are looking for a picture. So, we'll haven't.

  • Unlike robots, we can see only what is NOT hidden by styles. Let's use it.

  • Since we don't see the same thing that the bot does, there is no reason to make it difficult.

  • We are using the same technique as the fluxbb auth: cookie signed by secret with expiration.

  • There are no additional dependencies such as new tables, sessions or javascript.

Screenshots:

newcaptcha1.png
newcaptcha2.png

How captcha looks like on page source:
<strong class="masq"><i>R</i><i>S</i><i>D</i><i>1</i><i>m</i><i>j</i><i>M</i></strong>

At the same time something is done invisible. RDmjM is not RSD1mjM.

Installation:

Download and unpack ZIP into temporary folder.

If you own fluxbb v1.5.9 without mods, you can simply copy the files from /files/ on top of yours.
If the version is differ or you have modified something already, do NOT copy files, but follow readme.txt carefully.

( Topic on Russian: https://fluxbb.qb7.ru/forum/viewtopic.php?id=3945 )

Last edited by artoodetoo (2016-05-17 12:37:37)


I'm not a fan of FluxBB way anymore.

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#2 2016-01-17 18:36:01

TigerAero
Member
From: WI, USA
Registered: 2009-02-01
Posts: 458
Website

Re: [MOD] Copyable captcha

That's pretty smart. smile

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#3 2016-01-17 18:49:05

Franz
Lead developer
From: Germany
Registered: 2008-05-13
Posts: 6,686
Website

Re: [MOD] Copyable captcha

Awesome! Looks like a great idea.

Do you need any additional hooks to make this work as an addon (i.e. without changing core files)?


fluxbb.de | develoPHP

"As code is more often read than written it's really important to write clean code."

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#4 2016-01-18 05:15:53

artoodetoo
Member
From: Far-Far-Away
Registered: 2008-05-11
Posts: 226

Re: [MOD] Copyable captcha

I don't know yet. I would really appreciate any tips.


I'm not a fan of FluxBB way anymore.

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#5 2016-01-18 11:39:54

Franz
Lead developer
From: Germany
Registered: 2008-05-13
Posts: 6,686
Website

Re: [MOD] Copyable captcha

Well, since it's a captcha, you can probably base yours on the structure of [my Captcha addon](https://github.com/franzliedke/fluxbb-new-recaptcha).


fluxbb.de | develoPHP

"As code is more often read than written it's really important to write clean code."

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#6 2016-01-18 12:37:43

artoodetoo
Member
From: Far-Far-Away
Registered: 2008-05-11
Posts: 226

Re: [MOD] Copyable captcha

Thank you! Visman gave me a lesson on the subject.
New release 1.0.1 as addon: http://fluxbb.org/resources/mods/copyab … ses/1.0.1/


I'm not a fan of FluxBB way anymore.

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#7 2016-07-20 05:13:22

wimc
Member
From: Washington State
Registered: 2010-10-31
Posts: 114

Re: [MOD] Copyable captcha

Could you do this in less time, lets say 1 minute instead or may be even 30 seconds. Sure bots have automated form submissions, and capable of filling in fields fast.

Looked at the file, saw two instances of 120 (change both to 60 or 30). Or is there something else that it wouldn't be necessary to change at all.

Thanks

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#8 2017-01-17 15:37:11

artoodetoo
Member
From: Far-Far-Away
Registered: 2008-05-11
Posts: 226

Re: [MOD] Copyable captcha

Sorry for late answer smile
You can change timeout right here:
https://github.com/fluxbb-ru/copyable-c … ha.php#L48
As for me, I don't think the small value has real meaning for bot resistance.


I'm not a fan of FluxBB way anymore.

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