Allow locking network configuration

client/index.html

@@ -103,11 +103,11 @@
 									<label>Server</label>
 								</div>
 								<div class="col-sm-6 col-xs-8">
-									<input class="input" name="host" value="<%= defaults.host %>">
+									<input class="input" name="host" value="<%= defaults.host %>" <%= typeof(lockNetwork) !== "undefined" && lockNetwork ? 'disabled' : ''%>>
 								</div>
 								<div class="col-sm-3 col-xs-4">
 									<div class="port">
-										<input class="input" name="port" value="<%= defaults.port %>">
+										<input class="input" name="port" value="<%= defaults.port %>" <%= typeof(lockNetwork) !== "undefined" && lockNetwork ? 'disabled' : ''%>>
 									</div>
 								</div>
 								<div class="clearfix"></div>
@@ -120,7 +120,7 @@
 								<div class="col-sm-3"></div>
 								<div class="col-sm-9">
 									<label class="tls">
-										<input type="checkbox" name="tls" <%= defaults.tls ? 'checked="checked"' : '' %>>
+										<input type="checkbox" name="tls" <%= defaults.tls ? 'checked="checked"' : '' %> <%= typeof(lockNetwork) !== "undefined" && lockNetwork ? 'disabled' : ''%>>
 										Enable TLS/SSL
 									</label>
 								</div>

defaults/config.js

@@ -79,14 +79,24 @@ module.exports = {
 	//
 	// Display network
 	//
-	// If set to false The Lounge will not expose network settings in login
+	// If set to false network settings will not be shown in the login form.
-	// form, limiting client to connect to the configured network.
 	//
 	// @type     boolean
 	// @default  true
 	//
 	displayNetwork: true,
 
+	//
+	// Lock network
+	//
+	// If set to true, users will not be able to modify host, port and tls
+	// settings and will be limited to the configured network.
+	//
+	// @type     boolean
+	// @default  false
+	//
+	lockNetwork: false,
+
 	//
 	// Log settings
 	//

src/client.js

@@ -123,13 +123,43 @@ Client.prototype.find = function(id) {
 Client.prototype.connect = function(args) {
 	var config = Helper.getConfig();
 	var client = this;
+
+	if (config.lockNetwork) {
+		// This check is needed to prevent invalid user configurations
+		if (args.host && args.host.length > 0 && args.host !== config.defaults.host) {
+			var invalidHostnameMsg = new Msg({
+				type: Msg.Type.ERROR,
+				text: "Hostname you specified is not allowed."
+			});
+			client.emit("msg", {
+				msg: invalidHostnameMsg
+			});
+			return;
+		}
+
+		args.host = config.defaults.host;
+		args.port = config.defaults.port;
+		args.tls = config.defaults.tls;
+	}
+
 	var server = {
 		name: args.name || "",
-		host: args.host || "chat.freenode.net",
+		host: args.host || "",
-		port: args.port || (args.tls ? 6697 : 6667),
+		port: parseInt(args.port, 10) || (args.tls ? 6697 : 6667),
 		rejectUnauthorized: false
 	};
 
+	if (server.host.length === 0) {
+		var emptyHostnameMsg = new Msg({
+			type: Msg.Type.ERROR,
+			text: "You must specify a hostname to connect."
+		});
+		client.emit("msg", {
+			msg: emptyHostnameMsg
+		});
+		return;
+	}
+
 	if (config.bind) {
 		server.localAddress = config.bind;
 		if (args.tls) {