Book Image

Spring Security - Third Edition

By : Mick Knutson, Peter Mularien, ROBERT WILLIAM WINCH
Book Image

Spring Security - Third Edition

By: Mick Knutson, Peter Mularien, ROBERT WILLIAM WINCH

Overview of this book

Knowing that experienced hackers are itching to test your skills makes security one of the most difficult and high-pressured concerns of creating an application. The complexity of properly securing an application is compounded when you must also integrate this factor with existing code, new technologies, and other frameworks. Use this book to easily secure your Java application with the tried and trusted Spring Security framework, a powerful and highly customizable authentication and access-control framework. The book starts by integrating a variety of authentication mechanisms. It then demonstrates how to properly restrict access to your application. It also covers tips on integrating with some of the more popular web frameworks. An example of how Spring Security defends against session fixation, moves into concurrency control, and how you can utilize session management for administrative functions is also included. It concludes with advanced security scenarios for RESTful webservices and microservices, detailing the issues surrounding stateless authentication, and demonstrates a concise, step-by-step approach to solving those issues. And, by the end of the book, readers can rest assured that integrating version 4.2 of Spring Security will be a seamless endeavor from start to finish.
Table of Contents (19 chapters)

Dynamically defining access control to URLs

Spring Security provides several methods for mapping ConfigAttribute objects to a resource. For example, the antMatchers() method ensures it is simple for developers to restrict access to specific HTTP requests in their web application. Behind the scenes, an implementation of o.s.s.acess.SecurityMetadataSource is populated with these mappings and queried to determine what is required in order to be authorized to make any given HTTP request.

While the antMatchers() method is very simple, there may be times that it would be desirable to provide a custom mechanism for determining the URL mappings. An example of this might be if an application needs to be able to dynamically provide the access control rules. Let's demonstrate what it would take to move our URL authorization configuration into a database.

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