mod_websocket: Merge session close handling changes from mod_c2s (bug fixes) This should bring some fixes and general robustness that mod_websocket had missed out on. The duplicated code here is not at all ideal. To prevent this happening again, we should figure out how to have the common logic in a single place, while still being able to do the websocket-specific parts that we need. The main known bug that this fixes is that it's possible for a session to get into a non-destroyable state. For example, if we try to session:close() a hibernating session, then session.conn is nil and the function will simply return without doing anything. In the mod_c2s code we already handle this, and just destroy the session. But if a hibernating websocket session is never resumed or becomes non-resumable, it will become immortal! By merging the fix from mod_c2s, the session should now be correctly destroyed.

-- 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 "prosody.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);