Added settings module and exposed it to the templates

The server should require the same settings module as the client; so
that the checks is performed on both sides.

public/js/cryptalk_modules/$.js

@@ -62,7 +62,7 @@ define(['fandango', 'websocket', 'aes'], function (fandango, websocket, aes) {
 	}
 
 	/**
-	 * A very simple implementation of sprintf()
+	 * A very simple templating function.
 	 * @param  {} str [description]
 	 * @param  {[type]} map [description]
 	 * @return {[type]}     [description]

public/js/cryptalk_modules/cryptalk.js

@@ -1,14 +1,11 @@
 // Main cryptalk module
 define({
-	data: {
-		// If no host is given it will default to localhost.
-		host: ''
-	},
 	compiles: ['$'],
-	requires: ['templates', 'sound', 'fandango']
+	requires: ['settings', 'templates', 'sound', 'fandango']
 }, function ($, requires, data) {
 	var socket,
 		key,
+		host,
 		room,
 		hash,
 		nick,
@@ -27,6 +24,7 @@ define({
 		},
 
 		// Shortcut
+		settings = requires.settings;
 		fandango = requires.fandango;
 		templates = requires.templates;
 		sound = requires.sound;
@@ -34,11 +32,16 @@ define({
 		// Adds a new message to the DOM
 		post = function (type, text, clearChat, clearBuffer, nick) {
 			var tpl = templates.post[type],
-				post = $.template(tpl, text && {
-					text: text,
-					nick: nick
+				post,
+				data = fandango.merge({}, settings, {
+					nick: nick,
+					room: room,
+					mute: mute
 				});
 
+			data.text = $.template(text, data);
+			post = $.template(tpl, data);
+
 			// Always clear the input after a post
 			if (clearBuffer) {
 				clearInput();
@@ -79,8 +82,10 @@ define({
 
 			key: function (payload) {
 				// Make sure the key meets the length requirements
-				if (payload.length < 8) {
-					return post('error', templates.messages.key_weak);
+				if (payload.length > settings.key_maxLen) {
+					return post('error', templates.messages.key_to_long);
+				} else if (payload.length < settings.key_minLen) {
+					return post('error', templates.messages.key_to_short);
 				}
 
 				// Set key
@@ -91,9 +96,11 @@ define({
 			},
 
 			nick: function (payload) {
-				// Make sure the nick meets the length requirements
-				if (payload.length < 2) {
-					return post('error', templates.messages.nick_short);
+				// Make sure the key meets the length requirements
+				if (payload.length > settings.nick_maxLen) {
+					return post('error', templates.messages.nick_to_long);
+				} else if (payload.length < settings.nick_minLen) {
+					return post('error', templates.messages.nick_to_short);
 				}
 
 				// Set nick
@@ -114,7 +121,7 @@ define({
 			join: function (payload) {
 				return (
 					room
-						? post('error', $.template(templates.messages.already_in_room, { roomName: room}))
+						? post('error', templates.messages.already_in_room)
 						: socket.emit('room:join', payload)
 				);
 			},
@@ -122,7 +129,7 @@ define({
 			generate: function (payload) {
 				return (
 					room
-						? post('error', $.template(templates.messages.already_in_room, { roomName: room}))
+						? post('error', templates.messages.already_in_room)
 						: socket.emit('room:generate')
 				);
 			}
@@ -250,16 +257,18 @@ define({
 			}
 		};
 
+	host = settings.host;
+
 	// Post the help/welcome message
 	post('motd', templates.motd, true);
 
 	// Push 'Connecting...' message
 	post('info', $.template(templates.messages.connecting, {
-		host: data.host || 'localhost'
+		host: host || 'localhost'
 	}));
 
 	// The one  and only socket
-	socket = $.Websocket.connect(data.host);
+	socket = $.Websocket.connect(host);
 
 	// Bind socket events
 	socket
@@ -330,7 +339,7 @@ define({
 
 			// Tell the user that the chat is ready to interact with
 			post('info', $.template(templates.messages.connected, {
-				host: data.host || 'localhost'
+				host: host || 'localhost'
 			}));
 
 			// It's possible to provide room and key using the hashtag.

public/js/cryptalk_modules/settings.js

@@ -0,0 +1,10 @@
+define({
+	// If no host is given it will default to localhost.
+	host: '',
+
+	nick_maxLen: 20,
+	nick_minLen: 3,
+
+	key_maxLen: Infinity,
+	key_minLen: 8
+});

public/js/cryptalk_modules/templates.js

@@ -48,6 +48,8 @@ define({
 
 	default_nick: 'Anonymous',
 
+	// All post templates will have access to the properties in the 'settings' module, 
+	// along with the current nick, room, mute-status and of course the message ('text').
 	post: {
 		motd: 		'<li><i class="motd">{text}</i></li>',
 		info: 		'<li>INF&gt; <i class="info">{text}</i></li>',
@@ -56,34 +58,37 @@ define({
 		message: 	'<li><i class="nick">{nick}&gt;</i> <i class="message">{text}</i></li>'
 	},
 
+	// All message templates will have access to the properties in the 'settings' module, 
+	// along with the current nick, room and mute-status.
 	messages: {
-		key_weak: 				'Hmm, that\'s a weak key, try again...',
+		key_to_short: 			'Hmm, that\'s a weak key, try again...',
+		key_to_long: 			'Man that\'s a long key. Make it a tad short, \'kay?',
 		key_ok_ready: 			'Key set, you can now start communicating.',
 		key_ok_but_no_room: 	'Key set, you can now join a room and start communicating.',
+
+		nick_to_short: 			'Nickname is too short, it has to be at least {nick_minLen} characters long. Try again.',
+		nick_to_long: 			'Nickname is too long, it can be at most {nick_maxLen} characters long. Try again.',
+		nick_set: 				'From now on, you\'re referred to as \'{nick}\'.',
+
 		msg_no_room: 			'You have to join a room before sending messages. See /help.',
 		not_in_room: 			'You have to be in a room to count participants...',
 		msg_no_key: 			'You have to set an encryption key before sending a message. See /help.',
-		nick_short: 			'Nickname is too short, try again.',
-		nick_set: 				'From now on, you\'re referred to as \'{nick}\'.',
 		leave_from_nowhere: 	'How are you supposed to leave, while being nowhere?',
 
 		// Sounds
 		muted: 					'Notification sounds is now muted.',
-		unmuted: 					'Notifications sounds is now on.',
+		unmuted: 				'Notifications sounds is now on.',
 
-		// Available variables: 'commandName'
+		// Extra variables: 'commandName'
 		unrecognized_command: 	'Unrecognized command: "{commandName}"',
 
-		// Available variables: 'roomName'
-		joined_room: 			'Joined room {roomName}',
-		left_room: 				'Left room {roomName}',
-		already_in_room: 		'You are already in a room ({roomName}), stoopid.',
+		joined_room: 			'Joined room {room}',
+		left_room: 				'Left room {room}',
+		already_in_room: 		'You are already in a room ({room}), stoopid.',
 
 		unable_to_decrypt: 		'Unabled to decrypt received message, keys does not match.',
 
 		socket_error: 			'A network error has occurred. A restart may be required to bring back full functionality.<br>Examine the logs for more details.',
-
-		// Available variable: 'host'
 		connecting: 			'Connecting to host {host}...',
 		connected: 				'A connection to the server has been established. Happy chatting!'
 	},