File

plugins/muc/name.lib.lua @ 11665:148075532021

net.server_epoll: Prevent stack overflow of opportunistic writes net.http.files serving a big enough file on a fast enough connection with opportunistic_writes enabled could trigger a stack overflow through repeatedly serving more data that immediately gets sent, draining the buffer and triggering more data to be sent. This also blocked the server on a single task until completion or an error. This change prevents nested opportunistic writes, which should prevent the stack overflow, at the cost of reduced download speed, but this is unlikely to be noticeable outside of Gbit networks. Speed at the cost of blocking other processing is not worth it, especially with the risk of stack overflow.
author Kim Alvefur <zash@zash.se>
date Sun, 11 Jul 2021 09:39:21 +0200
parent 11057:13eee48071c8
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-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
-- Copyright (C) 2014 Daurnimator
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

local function get_name(room)
	return room._data.name;
end

local function set_name(room, name)
	if name == "" then name = nil; end
	if room._data.name == name then return false; end
	room._data.name = name;
	return true;
end

local function insert_name_into_form(event)
	table.insert(event.form, {
		name = "muc#roomconfig_roomname";
		type = "text-single";
		label = "Title";
		value = event.room._data.name;
	});
end

module:hook("muc-disco#info", function(event)
	event.reply:tag("identity", {category="conference", type="text", name=get_name(event.room)}):up();
	insert_name_into_form(event);
end);

module:hook("muc-config-form", insert_name_into_form, 100-1);

module:hook("muc-config-submitted/muc#roomconfig_roomname", function(event)
	if set_name(event.room, event.value) then
		event.status_codes["104"] = true;
	end
end);

return {
	get = get_name;
	set = set_name;
};