net.server_epoll: Add support for systemd socket activation
Allows creating listening sockets and accepting client connections
before Prosody starts.
This is unlike normal Prosody dynamic resource management, where ports
may added and removed at any time, and the ports defined by the config.
Weird things happen if these are closed (e.g. due to reload) so here we
prevent closing and ensure sockets are reused when opened again.
-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local st = require "prosody.util.stanza";
local is_contact_subscribed = require "prosody.core.rostermanager".is_contact_subscribed;
local jid_bare = require "prosody.util.jid".bare;
local jid_split = require "prosody.util.jid".split;
module:add_feature("jabber:iq:last");
local map = {};
module:hook("pre-presence/bare", function(event)
local stanza = event.stanza;
if not(stanza.attr.to) and stanza.attr.type == "unavailable" then
local t = os.time();
local s = stanza:get_child_text("status");
map[event.origin.username] = {s = s, t = t};
end
end, 10);
module:hook("iq-get/bare/jabber:iq:last:query", function(event)
local origin, stanza = event.origin, event.stanza;
local username = jid_split(stanza.attr.to) or origin.username;
if not stanza.attr.to or is_contact_subscribed(username, module.host, jid_bare(stanza.attr.from)) then
local seconds, text = "0", "";
if map[username] then
seconds = string.format("%d", os.difftime(os.time(), map[username].t));
text = map[username].s;
end
origin.send(st.reply(stanza):tag('query', {xmlns='jabber:iq:last', seconds=seconds}):text(text));
else
origin.send(st.error_reply(stanza, 'auth', 'forbidden'));
end
return true;
end);
module.save = function()
return {map = map};
end
module.restore = function(data)
map = data.map or {};
end