File

plugins/muc/hidden.lib.lua @ 10571:cfeb0077c9e9

net.server_epoll: Avoid concatenating buffer with single item Saves creating a string that'll be identical to buffer[1] anyways, as well as a C function call. Depending on Lua version and length of the string, this could be reusing an interned string, but a longer one would probably be duplicated for no reason. Having exactly one item in the buffer seems like it would be fairly common, but I have not done an extensive study. If opportunistic writes are enabled then it will be even more likely. This special case could be optimized like this in table.concat but it does not look like it is.
author Kim Alvefur <zash@zash.se>
date Sat, 28 Dec 2019 06:18:58 +0100
parent 9053:ea9e1f8f3013
child 12642:9061f9621330
line wrap: on
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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 restrict_public = not module:get_option_boolean("muc_room_allow_public", true);
local um_is_admin = require "core.usermanager".is_admin;

local function get_hidden(room)
	return room._data.hidden;
end

local function set_hidden(room, hidden)
	hidden = hidden and true or nil;
	if get_hidden(room) == hidden then return false; end
	room._data.hidden = hidden;
	return true;
end

module:hook("muc-config-form", function(event)
	if restrict_public and not um_is_admin(event.actor, module.host) then
		-- Don't show option if public rooms are restricted and user is not admin of this host
		return;
	end
	table.insert(event.form, {
		name = "muc#roomconfig_publicroom";
		type = "boolean";
		label = "Include room information in public lists";
		desc = "Enable this to allow people to find the room";
		value = not get_hidden(event.room);
	});
end, 100-9);

module:hook("muc-config-submitted/muc#roomconfig_publicroom", function(event)
	if restrict_public and not um_is_admin(event.actor, module.host) then
		return; -- Not allowed
	end
	if set_hidden(event.room, not event.value) then
		event.status_codes["104"] = true;
	end
end);

module:hook("muc-disco#info", function(event)
	event.reply:tag("feature", {var = get_hidden(event.room) and "muc_hidden" or "muc_public"}):up();
end);

return {
	get = get_hidden;
	set = set_hidden;
};