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-- Prosody IM
-- Copyright (C) 2008-2017 Matthew Wild
-- Copyright (C) 2008-2017 Waqas Hussain
-- Copyright (C) 2011-2017 Kim Alvefur
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
-- XEP-0313: Message Archive Management for Prosody
--
local st = require"util.stanza";
local xmlns_mam = "urn:xmpp:mam:2";
local default_attrs = {
always = true, [true] = "always",
never = false, [false] = "never",
roster = "roster",
}
local function tostanza(prefs)
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;
}
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