Diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_ircd/mod_ircd.in.lua	Tue Nov 01 13:52:29 2011 +0100
@@ -0,0 +1,293 @@
+-- README
+-- Squish verse into this dir, then squish them into one, which you move
+-- and rename to mod_ircd.lua in your prosody modules/plugins dir.
+--
+-- IRC spec:
+-- http://tools.ietf.org/html/rfc2812
+local _module = module
+module = _G.module
+local module = _module
+--
+local component_jid, component_secret, muc_server =
+      module.host, nil, module:get_option("conference_server");
+
+package.loaded["util.sha1"] = require "util.encodings";
+local verse = require "verse"
+require "verse.component"
+require "socket"
+c = verse.new();--verse.logger())
+c:add_plugin("groupchat");
+
+local function verse2prosody(e)
+	return c:event("stanza", e.stanza) or true;
+end
+module:hook("message/bare", verse2prosody);
+module:hook("message/full", verse2prosody);
+module:hook("presence/bare", verse2prosody);
+module:hook("presence/full", verse2prosody);
+c.type = "component";
+c.send = core_post_stanza;
+
+-- This plugin is actually a verse based component, but that mode is currently commented out
+
+-- Add some hooks for debugging
+--c:hook("opened", function () print("Stream opened!") end);
+--c:hook("closed", function () print("Stream closed!") end);
+--c:hook("stanza", function (stanza) print("Stanza:", stanza) end);
+
+-- This one prints all received data
+--c:hook("incoming-raw", print, 1000);
+--c:hook("stanza", print, 1000);
+--c:hook("outgoing-raw", print, 1000);
+
+-- Print a message after authentication
+--c:hook("authentication-success", function () print("Logged in!"); end);
+--c:hook("authentication-failure", function (err) print("Failed to log in! Error: "..tostring(err.condition)); end);
+
+-- Print a message and exit when disconnected
+--c:hook("disconnected", function () print("Disconnected!"); os.exit(); end);
+
+-- Now, actually start the connection:
+--c.connect_host = "127.0.0.1"
+--c:connect_component(component_jid, component_secret);
+
+local jid = require "util.jid";
+
+local function irc2muc(channel, nick)
+	return jid.join(channel:gsub("^#", ""), muc_server, nick)
+end
+local function muc2irc(room)
+	local channel, _, nick = jid.split(room);
+	return "#"..channel, nick;
+end
+local rolemap = {
+	moderator = "@",
+	participant = "+",
+}
+local modemap = {
+	moderator = "o",
+	participant = "v",
+}
+
+local irc_listener = { default_port = 6667, default_mode = "*l" };
+
+local sessions = {};
+local jids = {};
+local commands = {};
+
+local nicks = {};
+
+local st = require "util.stanza";
+
+local conference_server = muc_server;
+
+local function irc_close_session(session)
+	session.conn:close();
+end
+
+function irc_listener.onincoming(conn, data)
+	local session = sessions[conn];
+	if not session then
+		session = { conn = conn, host = component_jid, reset_stream = function () end,
+			close = irc_close_session, log = logger.init("irc"..(conn.id or "1")),
+			rooms = {},
+			roster = {} };
+		sessions[conn] = session;
+		function session.data(data)
+			local command, args = data:match("^%s*([^ ]+) *(.*)%s*$");
+			if not command then
+				return;
+			end
+			command = command:upper();
+			if not session.nick then
+				if not (command == "USER" or command == "NICK") then
+                                        session.send(":" .. muc_server .. " 451 " .. command .. " :You have not registered")
+                                        return true;
+				end
+			end
+			if commands[command] then
+				local ret = commands[command](session, args);
+				if ret then
+					session.send(ret.."\r\n");
+				end
+			else
+                                session.send(":" .. muc_server .. " 421 " .. session.nick .. " " .. command .. " :Unknown command")
+				module:log("debug", "Unknown command: %s", command);
+			end
+		end
+		function session.send(data)
+			return conn:write(data.."\r\n");
+		end
+	end
+	if data then
+		session.data(data);
+	end
+end
+
+function irc_listener.ondisconnect(conn, error)
+	local session = sessions[conn];
+	for _, room in pairs(session.rooms) do
+		room:leave("Disconnected");
+	end
+	jids[session.full_jid] = nil;
+	nicks[session.nick] = nil;
+	sessions[conn] = nil;
+end
+
+function commands.NICK(session, nick)
+	if session.nick then
+                session.send(":"..muc_server.." 484 * "..nick.." :I'm afraid I can't let you do that, "..nick);
+		--TODO Loop throug all rooms and change nick, with help from Verse.
+		return;
+	end
+	nick = nick:match("^[%w_]+");
+	if nicks[nick] then
+		session.send(":"..session.host.." 433 * "..nick.." :The nickname "..nick.." is already in use");
+		return;
+	end
+	local full_jid = jid.join(nick, component_jid, "ircd");
+	jids[full_jid] = session;
+	nicks[nick] = session;
+	session.nick = nick;
+	session.full_jid = full_jid;
+	session.type = "c2s";
+	session.send(":"..session.host.." 001 "..session.nick.." :Welcome to XMPP via the "..session.host.." gateway "..session.nick);
+end
+
+function commands.USER(session, params)
+	-- FIXME
+	-- Empty command for now
+end
+
+function commands.JOIN(session, channel)
+	local room_jid = irc2muc(channel);
+	print(session.full_jid);
+	local room, err = c:join_room(room_jid, session.nick, { source = session.full_jid } );
+	if not room then
+		return ":"..session.host.." ERR :Could not join room: "..err
+	end
+	session.rooms[channel] = room;
+	room.channel = channel;
+	room.session = session;
+	session.send(":"..session.nick.." JOIN :"..channel);
+	session.send(":"..session.host.." 332 "..session.nick.." "..channel.." :Connection in progress...");
+	room:hook("message", function(event)
+		if not event.body then return end
+		local nick, body = event.nick, event.body;
+		if nick ~= session.nick then
+			if body:sub(1,4) == "/me " then
+				body = "\1ACTION ".. body:sub(5) .. "\1"
+			end
+			session.send(":"..nick.." PRIVMSG "..channel.." :"..body);
+			--FIXME PM's probably won't work
+		end
+	end);
+end
+
+c:hook("groupchat/joined", function(room)
+	local session = room.session or jids[room.opts.source];
+	local channel = room.channel;
+	session.send((":%s!%s JOIN %s :"):format(session.nick, session.nick, channel));
+	if room.topic then
+		session.send((":%s 332 %s :%s"):format(session.host, channel, room.topic));
+	end
+	commands.NAMES(session, channel)
+	--FIXME Ones own mode get's lost
+	--session.send((":%s MODE %s +%s %s"):format(session.host, room.channel, modemap[nick.role], nick.nick));
+	room:hook("occupant-joined", function(nick)
+		session.send((":%s!%s JOIN :%s"):format(nick.nick, nick.nick, channel));
+		if nick.role and modemap[nick.role] then
+			session.send((":%s MODE %s +%s %s"):format(session.host, room.channel, modemap[nick.role], nick.nick));
+		end
+	end);
+	room:hook("occupant-left", function(nick)
+		session.send((":%s!%s PART %s :"):format(nick.nick, nick.nick, channel));
+	end);
+end);
+
+function commands.NAMES(session, channel)
+	local nicks = { };
+	local room = session.rooms[channel];
+	if not room then return end
+	-- TODO Break this out into commands.NAMES
+	for nick, n in pairs(room.occupants) do
+		if n.role and rolemap[n.role] then
+			nick = rolemap[n.role] .. nick;
+		end
+		table.insert(nicks, nick);
+	end
+	nicks = table.concat(nicks, " ");
+	--:molyb.irc.bnfh.org 353 derp = #grill-bit :derp hyamobi walt snuggles_ E-Rock kng grillbit gunnarbot Frink shedma zagabar zash Mrw00t Appiah J10 lectus peck EricJ soso mackt offer hyarion @pettter MMN-o 
+	session.send((":%s 353 %s = %s :%s"):format(session.host, session.nick, channel, nicks));
+	session.send((":%s 366 %s %s :End of /NAMES list."):format(session.host, session.nick, channel));
+	session.send(":"..session.host.." 353 "..session.nick.." = "..channel.." :"..nicks);
+end
+
+function commands.PART(session, channel)
+	local channel, part_message = channel:match("^([^:]+):?(.*)$");
+	channel = channel:match("^([%S]*)");
+	session.rooms[channel]:leave(part_message);
+	session.send(":"..session.nick.." PART :"..channel);
+end
+
+function commands.PRIVMSG(session, message)
+	local channel, message = message:match("^(%S+) :(.+)$");
+	if message and #message > 0 and session.rooms[channel] then
+		if message:sub(1,8) == "\1ACTION " then
+			message = "/me ".. message:sub(9,-2)
+		end
+		module:log("debug", "%s sending PRIVMSG \"%s\" to %s", session.nick, message, channel);
+		session.rooms[channel]:send_message(message);
+	end
+end
+
+function commands.PING(session, server)
+	session.send(":"..session.host..": PONG "..server);
+end
+
+function commands.WHO(session, channel)
+	if session.rooms[channel] then
+		local room = session.rooms[channel]
+		for nick in pairs(room.occupants) do
+			--n=MattJ 91.85.191.50 irc.freenode.net MattJ H :0 Matthew Wild
+			session.send(":"..session.host.." 352 "..session.nick.." "..channel.." "..nick.." "..nick.." "..session.host.." "..nick.." H :0 "..nick);
+		end
+		session.send(":"..session.host.." 315 "..session.nick.." "..channel.. " :End of /WHO list");
+	end
+end
+
+function commands.MODE(session, channel)
+	session.send(":"..session.host.." 324 "..session.nick.." "..channel.." +J"); 
+end
+
+function commands.QUIT(session, message)
+	session.send("ERROR :Closing Link: "..session.nick);
+	for _, room in pairs(session.rooms) do
+		room:leave(message);
+	end
+	jids[session.full_jid] = nil;
+	nicks[session.nick] = nil;
+	sessions[session.conn] = nil;
+	session:close();
+end
+
+function commands.RAW(session, data)
+	--c:send(data)
+end
+
+local function desetup()
+	require "net.connlisteners".deregister("irc");
+end
+
+--c:hook("ready", function ()
+	require "net.connlisteners".register("irc", irc_listener);
+	require "net.connlisteners".start("irc");
+--end);
+
+module:hook("module-unloaded", desetup)
+
+
+--print("Starting loop...")
+--verse.loop()
+
+