The Definitive Guide to HTML5 WebSocket by Wang, Vanessa -- Read -- Imperial Library of Trantor

Index

Cover Title Copyright Dedication Contents at a Glance Contents Foreword About the Authors About the Technical Reviewer Acknowledgments Chapter 1: Introduction to HTML5 WebSocket

What is HTML5? HTML5 Connectivity Overview of Older HTTP Architectures

HTTP 101 (or rather, HTTP/1.0 and HTTP/1.1) The Long Way Around: HTTP Polling, Long Polling, and Streaming

Introducing WebSocket Why Do You Need WebSocket?

WebSocket is about Performance WebSocket is about Simplicity WebSocket is about Standards WebSocket is about HTML5 You Need WebSocket!

WebSocket and RFC 6455 The World of WebSocket WebSocket Options

The WebSocket Community: It Lives! Applications of WebSocket

Related Technologies

Server-Sent Events SPDY Web Real-Time Communication

Summary

Chapter 2: The WebSocket API

Overview of the WebSocket API Getting Started with the WebSocket API

The WebSocket Constructor WebSocket Events WebSocket Methods WebSocket Object Attributes WebSocket Object Attribute: bufferedAmount

Putting It All Together Checking for WebSocket Support Using HTML5 Media with WebSocket Summary

Chapter 3: The WebSocket Protocol

Before the WebSocket Protocol

A Brief History of the Internet The Web and HTTP

Introducing the WebSocket Protocol

WebSocket: Internet Capabilities for Web Applications Inspecting WebSocket Traffic

The WebSocket Protocol

The WebSocket Opening Handshake Computing the Key Response Message Format The WebSocket Closing Handshake Support for Other Protocols Extensions

Writing a WebSocket Server in JavaScript with Node.js

Building a Simple WebSocket Server Testing Our Simple WebSocket Server Building a Remote JavaScript Console

Summary

Chapter 4: Building Instant Messaging and Chat over WebSocket with XMPP

Layered Protocols XMPP: A Streaming Mile of XML

Standardization Choosing a Connectivity Strategy Federation

Building a Chat and Instant Messaging Application over WebSocket

Using a WebSocket-Enabled XMPP Server Setting Up Test Users The Client Library: Strophe.js Connecting and Getting Started Presence and Status Exchanging Chat Messages Pings and Pongs Completed Chat Application

Suggested Extensions

Build a User Interface Use XMPP Extensions Connect to Google Talk

Summary

Chapter 5: Using Messaging over WebSocket with STOMP

Overview of Publish and Subscribe Models Introduction to STOMP Getting Started with Web Messaging

Setting Up a Message Broker Seeing STOMP Concepts in Action

Building a STOMP over WebSocket Application

The Flow of the Game Creating the Game Monitoring Apache ActiveMQ

Suggested Extensions The Future of Web Messaging Summary

Chapter 6: VNC with the Remote Framebuffer Protocol

An Overview of Virtual Network Computing

An Overview of the Remote Framebuffer Protocol Binary- and Text-Oriented Protocols Choosing to Use RFB over WebSocket

Building a VNC (RFB) Client over WebSocket

Setting Up a Proxy Server The RFB Client115 Using HTML5 <canvas> to Draw a Framebuffer Handling Input in the Client Putting It All Together

Enhancing the Application Summary

Chapter 7: WebSocket Security

WebSocket Security Overview WebSocket Security Features

Origin Header Headers with the “Sec-” Prefix WebSocket Secure Handshake: Accept Keys HTTP Proxies and Masking

Secure WebSocket Uses TLS (You Should, Too!) Authentication Application Level Security

Application Authentication Application Authorization

Summary

Chapter 8: Deployment Considerations

Overview of WebSocket Application Deployment WebSocket Emulation and Fallback

Plugins Polyfills Different Abstraction Layers

Proxies and Other Network Intermediaries

Reverse Proxies and Load Balancing Traverse Proxies and Firewalls with Transport Layer Security (TLS or SSL) Deploying TLS

WebSocket Pings and Pongs WebSocket Buffering and Throttling Monitoring Capacity Planning Socket Limits WebSocket Application Deployment Checklist Summary

Appendix A: Inspecting WebSocket Traffic

WebSocket Frame Inspection with Google Chrome Developer Tools Google Chrome Network Internals Analyzing Network Packets with Wireshark Summary

Appendix B: WebSocket Resources

Using the Virtual Machine WebSocket Servers

Index

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