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 JAAS configurations


For the Spring configurations for JAAS implementation, we have to start from the POM file setting. Then, web.xml and Servlet.xml need to be configured. Finally, for the application context settings, we need to configure the application context XML file. Let's see these configuration settings one by one, as follows:

The preceding POM file has the required dependencies to create the basic JAAS-based Spring Security project. The Spring Security Core JAR file has all the JAAS components, as shown in the following:

The preceding web.xml file has configurations for the springSecurityFilterChain, DispatcherServlet, ContextLoaderListener, and url patterns for servlet mapping:

The preceding applicationContext.xml file has all the entries for the JAAS security settings. The http security tag specifies the interceptor url patterns and access roles. The authentication manager is specified as jaasAuthProvider and you can see the configurations of DefaultJaasAuthenticationProvider...