# HG changeset patch
# User Matthew Wild <mwild1@gmail.com>
# Date 1702408108 0
# Node ID 174c77da03f55d15b53d265d294e763ce549620f
# Parent  e304e19536f21a83e4eba7ac5343b24d675df0a6
mod_server_info: New module to add custom service extension forms to disco

diff -r e304e19536f2 -r 174c77da03f5 mod_server_info/README.md
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_server_info/README.md	Tue Dec 12 19:08:28 2023 +0000
@@ -0,0 +1,50 @@
+---
+labels:
+- 'Stage-Alpha'
+summary: Manually configure extended service discovery info
+...
+
+XEP-0128 defines a way for servers to provide custom information via service
+discovery. Various XEPs and plugins make use of this functionality, so that
+e.g. clients can look up necessary information.
+
+This module allows the admin to manually configure service discovery
+extensions in the config file. It may be useful as a way to advertise certain
+information.
+
+Everything configured here is publicly visible to other XMPP entities.
+
+## Configuration
+
+The `server_info` option accepts a list of dataforms. A dataform is an array
+of fields. A field has three required properties:
+
+- `type` - usually `text-single` or `list-multi`
+- `var` - the field name
+- `value` the field value
+
+Example configuration:
+
+``` lua
+server_info = {
+
+	-- Our custom form
+	{
+		-- Conventionally XMPP dataforms have a 'FORM_TYPE' field to
+		-- indicate what type of form it is
+		{ type = "hidden", var = "FORM_TYPE", value = "urn:example:foo" };
+
+		-- Advertise that our maximum speed is 88 mph
+		{ type = "text-single", var = "speed", value = "88" };
+
+		-- Advertise that the time is 1:20 AM and zero seconds
+		{ type = "text-single", var = "time", value = "01:21:00" };
+	};
+
+}
+```
+
+## Compatibility
+
+This module should be compatible with Prosody 0.12, and possibly earlier
+versions.
diff -r e304e19536f2 -r 174c77da03f5 mod_server_info/mod_server_info.lua
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_server_info/mod_server_info.lua	Tue Dec 12 19:08:28 2023 +0000
@@ -0,0 +1,18 @@
+-- XEP-0128: Service Discovery Extensions (manual config)
+--
+-- Copyright (C) 2023 Matthew Wild
+--
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
+local dataforms = require "util.dataforms";
+
+local config = module:get_option("server_info");
+
+if not config or next(config) == nil then return; end -- Nothing to do
+
+for _, form in ipairs(config) do
+	module:add_extension(dataforms.new(form):form({}, "result"));
+end
+