Book Image

Spring Security Essentials

By : Nanda Nachimuthu
Book Image

Spring Security Essentials

By: Nanda Nachimuthu

Overview of this book

<p>Spring Security is a framework that focuses on providing both authentication and authorization to Java applications. Like all Spring projects, the real power of Spring Security is how easily it can be extended to meet custom requirements. The popularity of the Spring framework is increasing and the security package of Spring addresses vast mechanisms of Security in a rich way. Due to an increasing number of applications for various business needs, the integration of multiple applications is becoming inevitable. The standard security procedures available across multiple implementations in Spring will protect vulnerable applications that are open to larger public and private audiences.</p> <p>Spring Security Essentials focuses on the need to master the security layer, which is an area not often explored by a Spring developer.</p> <p>At the beginning, we’ll introduce various industry standard security mechanisms and the practical ways to integrate with them. We will also teach you about some up-to-date use cases such as building a security layer for RESTful web services and applications.</p> <p>The IDEs used and security servers involved are briefly explained, including the steps to install them. Many sample projects are also provided to help you practice your newly developed skills. Step-by-step instructions will help you master the security layer integration with the Server, then implement the experience gained from this book in your own real-time application.</p>
Table of Contents (17 chapters)
Spring Security Essentials
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Spring Security configurations


We can start building the security implementations in the Spring classes in the spring.security.rest.packt.security package as follows:

RestAuthenticationEntryPoint will be invoked once the request is missing the authentication. The Authentication Failed response will be sent if the request doesn't have a valid cookie.

In the following RestAuthenticationSuccessHandler, we have extended SimpleUrlAuthenticationSuccessHandler and implemented onAuthenticationSuccess method. This RestAuthenticationSuccessHandler will be called once the request is authenticated. If not authorized, the authenticate entry point will be called:

Now, we have to create the basic spring.security.rest.api REST package in order to build two Java config classes to mention the webSecurityConfig.xml classpath and spring.security.rest.api.security ComponentScan classes. The SpringSecurityConfig class will have the security settings, as shown in the following screenshot:

Also, the WebConfig.java...