-- 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 listeners_dir = (CFG_SOURCEDIR or ".").."/net/";

local server = require "net.server";

local log = require "util.logger".init("connlisteners");

local dofile, pcall, error = 

	dofile, pcall, error

module "connlisteners"

local listeners = {};

function register(name, listener)

	if listeners[name] and listeners[name] ~= listener then

		log("debug", "Listener %s is already registered, not registering any more", name);

		return false;

	end

	listeners[name] = listener;

	log("debug", "Registered connection listener %s", name);

	return true;

end

function deregister(name)

	listeners[name] = nil;

end

function get(name)

	local h = listeners[name];

	if not h then

		local ok, ret = pcall(dofile, listeners_dir..name:gsub("[^%w%-]", "_").."_listener.lua");

		if not ok then return nil, ret; end

		h = listeners[name];

	end

	return h;

end

function start(name, udata)

	local h, err = get(name);

	if not h then

		error("No such connection module: "..name.. (err and (" ("..err..")") or ""), 0);

	end

	if udata then

		if (udata.type == "ssl" or udata.type == "tls") and not udata.ssl then

			error("No SSL context supplied for a "..tostring(udata.type):upper().." connection!", 0);

		elseif udata.ssl and udata.type == "tcp" then

			error("SSL context supplied for a TCP connection!", 0);

		end

	end

	return server.addserver(h, 

			(udata and udata.port) or h.default_port or error("Can't start listener "..name.." because no port was specified, and it has no default port", 0), 

				(udata and udata.interface) or h.default_interface or "*", (udata and udata.mode) or h.default_mode or 1, (udata and udata.ssl) or nil, 99999999, udata and udata.type == "ssl");

end

return _M;