File

#summary provides captcha protection for registration form
#labels Stage-Beta

= Introduction =

Prosody-captcha is a little modification of prosody's "mod_register.lua" module that provides captcha protection for registration form.

= Installation =
First of all you should build and install lua bindings for libgd — [https://github.com/ittner/lua-gd/ lua-gd].

Then clone repsository lua-captcha:

*{{{ $ git clone https://github.com/mrDoctorWho/lua-captcha }}}*

install it:

*{{{ $ make install }}}*

= Configuration =

After that you would configure prosody. This module requires from you 4 fields, you should add this into your VirtualHost entry.

{{{
captcha_config = {
        dir = "/tmp"; -- Directory used to storage captcha images. Please make sure prosody user allowed to write there.
        timeout = 60; -- Timeout when captcha will expire
        web_path = "challenge"; -- Web path used to separate main prosody site from itself modules.
        font = "/usr/lib/prosody/FiraSans-Regular.ttf" -- Font used for captcha text
}
}}}

You can run script "install.lua" to install this or instead of that while prosody developers didn't accepted "dataforms" changes you should replace standard prosody "dataforms.lua" located in ubuntu in /usr/lib/prosody/util by another one from this repository. You should do the same thing with "mod_register.lua" located in ubuntu in /usr/lib/prosody/modules.

After this all you can try to register on your server and see the captcha.

= TODO =
  * Maybe use recaptcha instead of libgd.