OCS Captcha case-sensitive

Software Support
1

Hi,

How to disable OCS captcha case-sensitive. I want to use only uppercase or lowercase with captcha. Users are having problem with mixing captcha letters.

Best Regards,

2

Hi @snmzclk,

This would take an adjustment to the CAPTCHA code, which is in lib/pkp/classes/captcha.

Regards,
Alec Smecher
Public Knowledge Project Team

3

Hi Alec,

I’ve tried. But it did not. I could not find the corresponding encoding.

:slight_smile:

4

Hi @snmzclk,

Can you describe where you got stuck?

Regards,
Alec Smecher
Public Knowledge Project Team

5

Hi Alec,

I have chekced CaptchaDAO.inc.php, Captcha.inc.php CaptchaManager.inc.php files under the lib/pkp/classes/captcha. I can’t find the which line of code affecting the lower or uppercase. Users having lower and uppercase problem when they register. I wan to change captcha letters only lower or uppercase.

Best Regards

6

Hi @snmzclk,

See lib/pkp/classes/captcha/CaptchaManager.inc.php in the createCaptcha function:

$captcha->setValue(Validation::generatePassword($length));

This is what sets the password for the new Captcha object. If you want to change the way this is generated, you’d replace Validation::generatePassword($length) with your own function.

Regards,
Alec Smecher
Public Knowledge Project Team

7

Dear Alec,

I tried lots of options. But it did not work. Maybe in the new version google reCAPTHCA will be inject to OCS.

Thank you for your effort to help.

Best regards,