view mod_captcha_registration/README.markdown @ 5243:d5dc8edb2695

mod_http_oauth2: Use more compact IDs UUIDs are nice but so verbose! The reduction in entropy for the nonce should be fine since the timestamp is also counts towards this, and it changes every second (modulo clock shenanigans), so the chances of someone managing to get the same client_secret by registering with the same information at the same time as another entity should be negligible.
author Kim Alvefur <zash@zash.se>
date Sat, 11 Mar 2023 22:46:27 +0100 (22 months ago)
parents 8de50be756e5
children
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---
labels:
- 'Stage-Beta'
summary: provides captcha protection for registration form
...

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 —
[lua-gd](https://github.com/ittner/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.