mod_rest: Add JSON mapping of XEP-0128: Service Discovery Extensions Example XEP-0157 payload: { "disco" : { "extensions" : { "http://jabber.org/network/serverinfo" : { "abuse-addresses" : [ "mailto:abuse@shakespeare.lit", "xmpp:abuse@shakespeare.lit" ], "admin-addresses" : [ "mailto:admin@shakespeare.lit", "xmpp:admin@shakespeare.lit" ], "feedback-addresses" : [ "http://shakespeare.lit/feedback.php", "mailto:feedback@shakespeare.lit", "xmpp:feedback@shakespeare.lit" ], "sales-addresses" : [ "xmpp:bard@shakespeare.lit" ], "security-addresses" : [ "xmpp:security@shakespeare.lit" ], "support-addresses" : [ "http://shakespeare.lit/support.php", "xmpp:support@shakespeare.lit" ] } } } }

---
summary: HTTP Authentication using custom JSON protocol
...

Introduction
============

To authenticate users, this module does a `POST` request to a configured
URL with a JSON payload. It is not async so requests block the server
until answered.

Configuration
=============

``` lua
VirtualHost "example.com"
authentication = "custom_http"
auth_custom_http = {
  post_url = "http://api.example.com/auth";
}
```

Protocol
========

The JSON payload consists of an object with `username` and `password`
members:

    {"username":"john","password":"secr1t"}

The module expects the response body to be exactly `true` if the
username and password are correct.