File

plugins/mod_welcome.lua @ 10092:4b3c129e96f2 0.11

mod_websocket: Clone stanza before mutating (fixes #1398) Checking for `stanza.attr.xmlns == nil` to determine if the stanza object is an actual stanza (`<message>`, `<presence>` or `<iq>` in the `jabber:client` or `jabbber:server` namespace) or some other stream element. Since this mutation is not reverted, it may leak to other places and cause them to mistreat stanzas as stream elements. Especially in cases like MUC where a single stanza is broadcast to many recipients.
author Kim Alvefur <zash@zash.se>
date Sat, 20 Jul 2019 04:19:58 +0200
parent 8161:31938a0c398f
child 12977:74b9e05af71e
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-- 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 host = module:get_host();
local welcome_text = module:get_option_string("welcome_message", "Hello $username, welcome to the $host IM server!");

local st = require "util.stanza";

module:hook("user-registered",
	function (user)
		local welcome_stanza =
			st.message({ to = user.username.."@"..user.host, from = host },
				welcome_text:gsub("$(%w+)", user));
		module:send(welcome_stanza);
		module:log("debug", "Welcomed user %s@%s", user.username, user.host);
	end);