File

plugins/mod_offline.lua @ 13439:1e229d710a3c

util.signal: Add support for signalfd(2) on Linux signalfd allows handling signal events using the same method as sockets, via file descriptors. Thus all signal dispatch can go through the same main event loop as everything else, removing need for thread-scary signal handling where execution would just jump to the signal handler regardless of the state of Lua, and needing to keep track of Lua states/threads.
author Kim Alvefur <zash@zash.se>
date Sat, 24 Feb 2024 00:05:29 +0100 (18 months ago)
parent 12977:74b9e05af71e
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-- Prosody IM
-- Copyright (C) 2008-2009 Matthew Wild
-- Copyright (C) 2008-2009 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--


local datetime = require "prosody.util.datetime";
local jid_split = require "prosody.util.jid".split;

local offline_messages = module:open_store("offline", "archive");

module:add_feature("msgoffline");

module:hook("message/offline/handle", function(event)
	local origin, stanza = event.origin, event.stanza;
	local to = stanza.attr.to;
	local node;
	if to then
		node = jid_split(to)
	else
		node = origin.username;
	end

	local ok = offline_messages:append(node, nil, stanza, os.time(), "");
	if ok then
		module:log("debug", "Saved to offline storage: %s", stanza:top_tag());
	end
	return ok;
end, -1);

module:hook("message/offline/broadcast", function(event)
	local origin = event.origin;
	origin.log("debug", "Broadcasting offline messages");

	local node, host = origin.username, origin.host;

	local data = offline_messages:find(node);
	if not data then return true; end
	for _, stanza, when in data do
		stanza:tag("delay", {xmlns = "urn:xmpp:delay", from = host, stamp = datetime.datetime(when)}):up(); -- XEP-0203
		origin.send(stanza);
	end
	local ok = offline_messages:delete(node);
	if type(ok) == "number" and ok > 0 then
		origin.log("debug", "%d offline messages consumed");
	end
	return true;
end, -1);