view mod_mam/mamprefsxml.lib.lua @ 3677:90f88a643973

mod_bookmarks2: Add new module. This is the result of hacking during the Stockholm XMPP Sprint, for compatibility with older clients only doing Private XML XEP-0048. This module shouldn’t be loaded at the same time as mod_bookmarks, as both implement Private XML to achieve their conversion.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sat, 28 Sep 2019 14:27:13 +0200
parents 5941aac79f06
children
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-- XEP-0313: Message Archive Management for Prosody
-- Copyright (C) 2011-2013 Kim Alvefur
--
-- This file is MIT/X11 licensed.

local st = require"util.stanza";

local default_attrs = {
	always = true, [true] = "always",
	never = false, [false] = "never",
	roster = "roster",
}

local function tostanza(prefs, xmlns_mam)
	local default = prefs[false];
	default = default_attrs[default];
	local prefstanza = st.stanza("prefs", { xmlns = xmlns_mam, default = default });
	local always = st.stanza("always");
	local never = st.stanza("never");
	for jid, choice in pairs(prefs) do
		if jid then
			(choice and always or never):tag("jid"):text(jid):up();
		end
	end
	prefstanza:add_child(always):add_child(never);
	return prefstanza;
end
local function fromstanza(prefstanza)
	local prefs = {};
	local default = prefstanza.attr.default;
	if default then
		prefs[false] = default_attrs[default];
	end

	local always = prefstanza:get_child("always");
	if always then
		for rule in always:childtags("jid") do
			local jid = rule:get_text();
			prefs[jid] = true;
		end
	end

	local never = prefstanza:get_child("never");
	if never then
		for rule in never:childtags("jid") do
			local jid = rule:get_text();
			prefs[jid] = false;
		end
	end

	return prefs;
end

return {
	tostanza = tostanza;
	fromstanza = fromstanza;
}