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chatroom.html
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<!DOCTYPE html>
<html>
<head>
<title>Chatroom</title>
<meta charset="UTF-8">
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
<!-- Latest compiled JavaScript -->
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
<!-- My stylesheet -->
<style>
.extra-margin {
margin:5px;
}
#chatlog {
height:300px;
max-height: 300px;
overflow:auto;
background-color: #CEF6F5;
}
#rooms_log {
height:150px;
max-height: 150px;
overflow:auto;
}
#users_log {
height:250px;
max-height: 250px;
overflow:auto;
}
#blacklist {
display: none;
}
</style>
<!-- socket.io -->
<script src="/socket.io/socket.io.js"></script>
<!-- main logic -->
<script type ="text/javascript">
/* Global Vars */
var username = "someone";
var user_socket_id = "";
var room_name = "lobby";
/* IOs */
var socketio = io.connect();
// After successfully connect to server, save socket_id locally
socketio.on("connected", function(data) {
user_socket_id = data.user_socket_id;
$("#username_modal").modal("show");
});
// Receive msg from server, print
socketio.on("message_to_client",function(data) {
// Only print out messages in current room
if(room_name == data.room_name){
$("#chatlog").append("<span class='label label-primary'>" +
data.username +
":</span>" + " " +
data.message + "<br>");
}
});
// update users_log
socketio.on("stc_update_users_log", function(data) {
// updates only if current chatroom changes
if(room_name == data.old_room_name || room_name == data.new_room_name){
var users;
var admin_socket_id;
var room;
if(room_name == data.old_room_name){
users = data.old_users;
admin_socket_id = data.old_admin_socket_id;
room = data.old_room; }
else{
users = data.new_users;
admin_socket_id = data.new_admin_socket_id;
room = data.new_room;
}
var html2 = "<option id='#public' value='public'>Public</option>";
// if I am the admin, render buttons
if(admin_socket_id == user_socket_id) {
// render ban list
renderBanlist(room);
// rendender users_log section
$("#users_log").html("<div id='accordion_users'></div>");
for(var i in users) {
// if not me
if(i != user_socket_id){
$("#accordion_users").append(
"<h5>" +
"<span class='label label-primary'>" + users[i] + "</span>" +
"</h5>" +
"<div>" +
"<button type='button' value='" + i + "' class='btn btn-warning btn-xs kick'>Kick</button>" +
' ' +
"<button type='button' value='" + i + "' class='btn btn-danger btn-xs ban'>Ban</button>" +
"</div>");
html2 += "<option id='#" + i + "' value='" + i + "'>" + users[i] + "</option>";
} else{
$("#accordion_users").append(
"<h5>" +
"<span class='label label-primary'>" + users[i] + "</span>" +
"</h5><div></div>");
}
}
// add event listener for kick
$(".kick").click(kick);
// add event listener for ban
$(".ban").click(ban);
// add event listener for accordion
$("#accordion_users").accordion({heightStyle: "content"});
$("#receiver").html(html2);
}
// I am not the admin of the chatroom
else {
// hide blacklist
$("#blacklist").hide();
var html1 = "";
for(var j in users) {
html1 += "<span class='label label-primary'>" +
users[j] +
"</span><br>";
if(j != user_socket_id){
html2 += "<option id='#" + j + "' value='" + j + "'>" + users[j] + "</option>";
}
}
$("#users_log").html(html1);
$("#receiver").html(html2);
}
}
});
// update rooms_log
socketio.on("stc_update_rooms_log", function(data) {
var rooms = data.rooms;
$("#rooms_log").html("<div id='accordion_rooms'></div>");
for(var i in rooms) {
// Can not join a room I am already in
if(room_name !== rooms[i].room_name){
$("#accordion_rooms").append(
"<h5>" +
"<span class='label label-primary'>" + i + "</span>" +
"</h5>" +
"<div>" +
"<button type='button' value='" + i + "' class='btn btn-info btn-xs join'>Join</button>" +
"</div>");
}else{
$("#accordion_rooms").append(
"<h5>" +
"<span class='label label-primary'>" + i + "</span>" +
"</h5><div></div>");
}
}
// add event listener for join
$(".join").off().click(joinRoom);
// add event listener for accordion
$("#accordion_rooms").accordion({heightStyle: "content"});
});
// result of blacklist validation, if not passed, stay in current chatroom
// else passed, transfer to new chatroom
socketio.on("stc_validate", function(data) {
var join_result = data.join_result;
var new_room_name = data.new_room_name;
if(!join_result) {
alert("You are banned from chatroom " + new_room_name);
} else{
transfer(new_room_name);
}
});
// Clear chatlog, notify user his/her new chatroom
socketio.on("stc_change_room", function(data) {
$("#chatlog").html("<span class='label label-danger'>Robot</span>" +
" " +
"You are in " +
data.new_room_name + "<br>");
updateUsersLog(data.old_room_name, data.new_room_name);
updateRoomsLog();
});
// After creating new room, change to new room, update lists
socketio.on("stc_create_new_room", function(data) {
// leaveRoom();
changeRoom(data.room_name);
});
// Receiver: Receive and print out private message
socketio.on("stc_private_message_receiver", function(data) {
if(room_name == data.room_name){
$("#chatlog").append("<span class='label label-info'>" +
data.username +
"</span>" + " WHISPERS TO YOU: " +
data.message + "<br>");
}
});
// Sender: Receive and print out private message
socketio.on("stc_private_message_sender", function(data) {
if(room_name == data.room_name){
$("#chatlog").append("<span class='label label-info'>YOU</span> WHISPER TO " +
data.receiver_user_name + ": " +
data.message + "<br>");
}
});
// A user disconnected, update user and room list
socketio.on("stc_disconnect", function(data) {
updateUsersLog(data.old_room_name, data.new_room_name);
updateRoomsLog();
});
// Refresh page, transfer from current room to lobby
socketio.on("stc_kick_receiver", function(data) {
alert("You have been kicked out of chatroom: " + room_name);
changeRoom("lobby");
});
// Alert kick successful
socketio.on("stc_kick_sender", function(data) {
var kicked_username = data.kicked_username;
alert( kicked_username + " has been kicked out");
});
// Refresh page, transfer from current room to lobby
socketio.on("stc_ban_receiver", function(data) {
alert("You have been banned from chatroom: " + room_name);
changeRoom("lobby");
});
// Alert ban successful
socketio.on("stc_ban_sender", function(data) {
var banned_username = data.banned_username;
alert( banned_username + " has been banned");
});
// Alert user ban has been lifeted
socketio.on("stc_unban_receiver", function(data) {
alert("Your ban from chatroom: " + data.room_name + "has been lifted");
});
// Alert admin unban successful, render dropdown ban list
socketio.on("stc_unban_sender", function(data) {
alert("You have successfully lifeted ban on user: " + data.unbanned_username);
renderBanlist(data.room);
});
// decide type of room to join
socketio.on("stc_query_room_type", function(data) {
var new_room_name = data.new_room_name;
var type = data.type;
if(type == "public") {
changeRoom(new_room_name);
}else{
$("#dialog").attr("title",new_room_name);
$("#dialog").dialog("open");
}
});
// decide password validation result
socketio.on("stc_validate_password", function(data){
var result = data.result;
var new_room_name = data.new_room_name;
if(result === true){
changeRoom(new_room_name);
}else{
alert("Password does not match");
}
});
/* functions */
// send msg to server
function sendMessage(){
var msg = $("#message").val();
var receiver_socket_id = $("#receiver").val();
if(receiver_socket_id == "public"){
socketio.emit("message_to_server", {message:msg,
username:username,
user_socket_id:user_socket_id,
room_name:room_name});
} else {
socketio.emit("cts_private_message",{message:msg,
username:username,
user_socket_id:user_socket_id,
receiver_socket_id:receiver_socket_id,
room_name:room_name});
}
$("#message").val("");
}
// Request for users in current chat room
function updateUsersLog(old_room_name, new_room_name){
socketio.emit("cts_update_users_log", {old_room_name:old_room_name,
new_room_name:new_room_name});
}
// Request for chatrooms
function updateRoomsLog() {
socketio.emit("cts_update_rooms_log", {});
}
// Check if user is on blacklist
function validate(new_room_name) {
socketio.emit("cts_validate", {new_room_name:new_room_name,
username:username,
user_socket_id:user_socket_id});
}
// transfer to the new chatroom
function transfer(new_room_name){
socketio.emit("cts_change_room", {old_room_name:room_name,
new_room_name:new_room_name,
username:username,
user_socket_id:user_socket_id});
room_name = new_room_name;
}
// Change chatroom
// validate first, then change
function changeRoom(new_room_name) {
validate(new_room_name);
}
// Callback func when user chooses a new username
function setUsername() {
username = $("#username").val();
$("#username").val("");
$("#username_modal").modal('hide');
changeRoom("lobby");
}
// Callback func when user creates new chatroom
function createNewRoom() {
var new_room_name = $("#new_room_name").val();
var type = $("#type").val();
var password = $("#password").val();
socketio.emit("cts_create_new_room", {new_room_name:new_room_name,
admin_socket_id:user_socket_id,
username: username,
type:type,
password:password});
$("#new_room_name").val("");
$("#type").val("");
$("#password").val("");
$("#chatroom_modal").modal('hide');
}
// query the room type
function queryRoomType(new_room_name) {
socketio.emit("cts_query_room_type", {new_room_name: new_room_name});
}
//Callback func when user joins a chatroom
function joinRoom(){
var new_room_name = $(this).val();
queryRoomType(new_room_name);
}
// validate private room password
function validatePassword(){
var private_pwd = $("#private_pwd").val();
var new_room_name = $("#dialog").attr("title");
socketio.emit("cts_validate_password", {private_pwd:private_pwd,
new_room_name:new_room_name});
$("#private_pwd").val("");
$("#dialog").attr("title","");
$("#dialog").dialog("close");
}
// Callback func when admin kicks a user
function kick(){
var kicked_user_socket_id = $(this).val();
socketio.emit("cts_kick", {kicked_user_socket_id: kicked_user_socket_id,
room_name: room_name});
}
// Callback func when admin bans a user
function ban(){
var banned_user_socket_id = $(this).val();
socketio.emit("cts_ban", {banned_user_socket_id: banned_user_socket_id,
room_name: room_name});
}
// Callback fun when admin unbans a user
function unban(){
var unbanned_user_socket_id = $(this).attr("id");
socketio.emit("cts_unban", {unbanned_user_socket_id: unbanned_user_socket_id,
room_name: room_name});
}
// helper func, update dropdown ban list
function renderBanlist(room){
$("#blacklist").children(".dropdown-menu").html("");
for(var k in room.blacklist){
$("#blacklist").children(".dropdown-menu").append(
"<li><a class='banned_user' id='" + k +"' href='#'>" + room.blacklist[k] + "</a></li>");
}
$("#blacklist").show();
$(".banned_user").off().click(unban);
}
/* Event listeners */
$(document).ready(function(){
// hide password section when public room is created
$("#type").change(function(){
var option = $("#type option:selected").val();
if(option == "public")
$("#pwd").hide();
else
$("#pwd").show();
});
// hide chatroom password dialog initially
$("#dialog").dialog({autoOpen: false});
// Add callback func for join_private_btn in dialogue
$("#join_private_btn").click(validatePassword);
});
</script>
</head>
<body>
<div class="container">
<!-- headers -->
<div class="page-header">
<h2>Chatroom</h2>
<p>Powevered by Node.js</p>
<div class="pull-right form-inline">
<button class='btn btn-info' data-toggle='modal' data-target='#chatroom_modal' id="create_new_room">Create New Chatroom</button>
</div>
</div>
<!-- Main Body -->
<div class="row">
<div class="col-md-9">
<div class="row">
<!-- Messages Pool Area -->
<div class="well extra-margin" id="chatlog"></div>
</div>
<!-- Input Text Area -->
<div class="row">
<form role="form">
<div class="form-group extra-margin">
<label for="message">Message:</label>
<textarea id="message" class="form-control" rows="4" placeholder="Type message here"></textarea>
</div>
</form>
<form role="form">
<div class="form-group extra-margin">
<label for="receiver">Send Message To:</label>
<select name="receiver" id="receiver" class="form-control">
</select>
</div>
</form>
<button class="btn btn-info pull-right extra-margin" onclick="sendMessage()">Send</button>
<!-- Blacklist (Banned User List) -->
<div class="dropdown pull-right extra-margin" id="blacklist">
<button class="btn btn-primary dropdown-toggle" type="button" data-toggle="dropdown">Unban Users
<span class="caret"></span></button>
<ul class="dropdown-menu">
</ul>
</div>
</div>
</div>
<!-- chatroom and user lists -->
<div class="col-md-3">
<div class="row extra-margin">
<!-- Chatrooms Pool Area -->
<h5>Chatrooms</h5>
<div class="well" id="rooms_log"></div>
</div>
<div class="row extra-margin">
<!-- Users Pool Area -->
<h5>Users in current room</h5>
<div class="well" id="users_log"></div>
</div>
</div>
</div>
</div>
<!-- Chatroom Password Dialog-->
<div id="dialog" title="">
<div>
<label for="private_pwd">Chatroom Password</label>
<input type="password" name="private_pwd" id="private_pwd" class="form-control" placeholder="Password">
<br>
</div>
<button type="button" class="btn btn-info" id="join_private_btn">Enter Private Room</button>
</div>
<!-- Username Modal -->
<div class="modal fade" id="username_modal" role="dialog">
<div class="modal-dialog modal-sm">
<!-- Modal content-->
<div class="modal-content">
<div class="modal-header">
<h4 class="modal-title">Choose a username</h4>
</div>
<div class="modal-body">
<label for="username">Username</label>
<input type="text" name="username" id="username" class="form-control" placeholder="Username">
<br>
<button type="button" class="btn btn-info" id="save" onclick="setUsername()">Save</button>
</div>
</div>
</div>
</div>
<!-- Create New Chatroom Modal -->
<div class="modal fade" id="chatroom_modal" role="dialog">
<div class="modal-dialog modal-sm">
<!-- Modal content-->
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Create New Chatroom</h4>
</div>
<div class="modal-body">
<label for="new_room_name">Chatroom Name</label>
<input type="text" name="new_room_name" id="new_room_name" class="form-control" placeholder="Chatroom Name">
<br>
<label for="type">Chatroom Type</label>
<select name="type" id="type" class="form-control">
<option value="private">Private</option>
<option value="public">Public</option>
</select>
<br>
<div id="pwd">
<label for="password">Chatroom Password</label>
<input type="password" name="password" id="password" class="form-control" placeholder="Password">
<br>
</div>
<button type="button" class="btn btn-info" id="create" onclick="createNewRoom()">Create</button>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</body>
</html>