Merge pull request #1 from drscream/master

webserver config file and drop root privileges

config.js

@@ -0,0 +1,8 @@
+// webserver configuration
+
+// listen port
+exports.port = 80;
+
+// uid and gid to drop root priv.
+exports.uid = 'light';
+exports.gid = 'users';

dmx.js

@@ -1,4 +1,5 @@
 var    events = require('events')
+	,  config = require('./config.js')
 	,     web = require('./web.js')
 	,   setup = require('./setup.js').setup
 	, devices = require('./devices.js').devices
@@ -7,6 +8,7 @@ var    events = require('events')
 
 var dmx = new events.EventEmitter();
 
+dmx.config  = config;
 dmx.setup   = setup;
 dmx.devices = devices;
 dmx.drivers = {};

web.js

@@ -49,7 +49,15 @@ exports.init = function(dmx) {
 
 
 	var app = http.createServer(handler)
-	app.listen(8080, '::');
+	app.listen(dmx.config.port, '::', null, function() {
+		try {
+			process.setgid(dmx.config.gid);
+			process.setuid(dmx.config.uid);
+		} catch (err) {
+			console.log(err);
+			process.exit(1);
+		}
+	});
 
 	io.listen(app).sockets.on('connection', function (socket) {
 		socket.emit('init', {'devices': dmx.devices, 'setup': dmx.setup});