Book Image

OAuth 2.0 Cookbook

By : Adolfo Eloy Nascimento
Book Image

OAuth 2.0 Cookbook

By: Adolfo Eloy Nascimento

Overview of this book

OAuth 2.0 is a standard protocol for authorization and focuses on client development simplicity while providing specific authorization flows for web applications, desktop applications, mobile phones, and so on. This book also provides useful recipes for solving real-life problems using Spring Security and creating Android applications. The book starts by presenting you how to interact with some public OAuth 2.0 protected APIs such as Facebook, LinkedIn and Google. You will also be able to implement your own OAuth 2.0 provider with Spring Security OAuth2. Next, the book will cover practical scenarios regarding some important OAuth 2.0 profiles such as Dynamic Client Registration, Token Introspection and how to revoke issued access tokens. You will then be introduced to the usage of JWT, OpenID Connect, and how to safely implement native mobile OAuth 2.0 Clients. By the end of this book, you will be able to ensure that both the server and client are protected against common vulnerabilities.
Table of Contents (16 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback

Using Facebook to authenticate users

Although Facebook does not implement OpenID Connect, it can also be used for authentication since it provides user identity information and the authentication context. Thus, the client application (or Relying Part) is able to recognize the user as being present and who the user claims to be. After reading this recipe, you will see how to use Spring Security OAuth2 to provide OAuth 2.0 as the basis for authentication (actually, OAuth 2.0 is about authorization, but it can be used as the basis for authentication).

Getting ready

To run this recipe, you will need Java 8, Maven, Spring Web, and Spring Security. To ease the project creation step, use Spring Initializr at define the dependencies: asWeb,JPA,H2,Thymeleaf, andSecurity(which will properly declare all the Spring Boot starters needed for this recipe). Do not forget to set up the Artifact and Group names.

How to do it...

This recipe creates the facebook-login-oauth2project, which...