Preface
WebDAV is a protocol that allows Web authoring tools and many other document-oriented applications to save documents directly to a Web server and manage the content on the server. Many Internet clients and servers as well as office productivity applications already implement WebDAV. This book explains what WebDAV is, how it works, and how to use it both in Web authoring tools and in custom document-based applications.
Readers
This book assumes only a minimum level of familiarity or comfort with the way the Internet and the World Wide Web work. Readers might want to start with a good Internet book (Stevens98) or a good HTTP book (Krishnamurthy01 or Gourley02) to familiarize themselves with the architecture of the World Wide Web and the protocols and practices that make it work.
This book can be used in many ways:
IT planners can use this book to understand whether WebDAV might serve as a suitable document management standard, before making important software purchasing decisions.
Software implementors who are interested in implementing WebDAV or in adding WebDAV functionality can use this book to learn practical details about WebDAV that aren't in the standard specifications and to learn about resources for the task.
Custom application designers can use this book to understand how to design an application to use the WebDAV document model. This allows the custom application to work seamlessly with WebDAV-capable content applications such as Office 2000.
Webmasters can use this book to understand how they can simplify and streamline their publication and authoring processes using WebDAV-enabled server software and existing HTML-authoring products. Like custom application designers, they will find out how document management can be customized to allow a custom publishing process or workflow process.
Organization of the Book
This book is divided into five main sections.
Introductory Material
Chapter 1, Introduction, introduces WebDAV, and why and how it was developed. Chapter 2, History of Web and Collaborative Authoring, gives more depth on the technologies that existed prior to WebDAV (FTP, HTTP), and the drawbacks that the WebDAV designers knew they needed to overcome. Chapter 3, HTTP Mechanics, provides a review of HTTP that is only necessary if you're not already familiar with HTTP.
How WebDAV Works
Chapter 4, Data Model, provides an overview of WebDAV functionality by explaining the data model, which is crucial to understanding how WebDAV works. Chapter 5, WebDAV Modifications to HTTP, explains how WebDAV extends HTTP methods. Chapters 6, 7, and 8 describe the practical aspects of how the core WebDAV protocol works. These chapters will be useful to developers of WebDAV-enabled software and custom applications. Chapter 9, Putting the Pieces Together, pulls this material together into extended examples.
WebDAV Extensions
Chapter 11, Versioning, and Chapter 12, Multifile Versioning, introduce the WebDAV versioning standard DeltaV in sufficient depth to enable the reader to read the DeltaV specifications and be able to put details into context. Chapter 13, Access Control, introduces the Access Control specification, which is soon to be a standard.
Software and Custom Applications
Chapter 10, WebDAV Products and Tools, introduces a number of client and server software packages that support WebDAV. Chapter 14, Custom WebDAV Applications, and Chapter 15, Designing WebDAV Applications, discuss what custom applications can do with WebDAV, and how to design such custom applications.
Reference Appendixes
Microsoft and Windows Tips and HTTP Status Codes.