OAuth 2.0 Cookbook: Protect your web applications using Spring Security

Description

Key FeaturesInteract with public OAuth 2.0 protected APIs such as Facebook, LinkedIn and Google.Use Spring Security and Spring Security OAuth2 to implement your own OAuth 2.0 providerLearn how to implement OAuth 2.0 native mobile clients for Android applicationsBook Description 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. What you will learnUse Redis and relational databases to store issued access tokens and refresh tokensAccess resources protected by the OAuth2 Provider using Spring SecurityImplement a web application that dynamically registers itself to the Authorization ServerImprove the safety of your mobile client using dynamic client registrationProtect your Android client with Proof Key for Code ExchangeProtect the Authorization Server from invalid redirectionAbout the Author Adolfo Eloy Nascimento is a software engineer at Elo7, he has a Bachelors degree in Computer Science, and has been working with software development since 1999. In around 2003, he started working with web development implementing applications using ASP, PHP4/5, JavaScript, and Java (sometimes he still does some maintenance for a Ruby on Rails application). He started using OAuth 2.0 two years ago, when designing applications using microservice architectures, as well as modeling and interacting with public APIs. As a tech enthusiast, Adolfo also likes to read and learn about programming languages and new technologies. He also believes that besides creating new applications, it is also important to share the knowledge he has acquired, which is what he does by writing for his personal blog, writing articles for Java Magazine in Brazil, and also writing tech books. Table of ContentsOAuth 2.0 foundationsImplementing Your Own OAuth 2.0 ProviderUsing an API protected with OAuth 2.0Working with OAuth 2.0 profilesSelf contained tokens with JWTOpenID Connect for authenticationImplementing Mobile ClientsAvoiding common vulnerabilities Preface What this book covers What you need for this book Who this book is for Sections Getting ready How to do it… How it works… There's more… See also Conventions Reader feedback Customer support Downloading the example code Downloading the color images of this book Errata Piracy Questions OAuth 2.0 Foundations Introduction Preparing the environment Getting ready How to do it... See also How it works... There's more... See also Reading the user's contacts from Facebook on the client side Getting ready How to do it... How it works... There's more... See also Reading the user's contacts from Facebook on the server side Getting ready How to do it... How it works... There's more... See also Accessing OAuth 2.0 LinkedIn protected resources Getting ready How to do it... How it works... There's more... See also Accessing OAuth 2.0 Google protected resources bound to the user's session Getting ready How to do it... How it works... There's more... See also Implementing Your Own OAuth 2.0 Provider Introduction Protecting resources using the Authorization Code grant type Getting ready How to do it... How it works... There's more... Supporting the Implicit grant type Getting ready How to do it... How it works... There's more... See also Using the Resource Owner Password Credentials grant type as an approach for OAuth 2.0 migration Getting ready How to do it... How it works... There's more... See also Configuring the Client Credentials grant type Getting ready How to do it... How it works... There's more... See also Adding support for refresh tokens Getting ready How to do it... How it works... There's more... See also Using a relational database to store tokens and client details Getting ready How to do it... How it works... There's more... See also Using Redis as a token store Getting ready How to do it... How it works... See also Implementing client registration Getting ready How to do it... How it works... See also Breaking the OAuth 2.0 Provider in the middle Getting ready How to do it... How it works... See also Using Gatling to load test the token validation process using shared databases Getting ready How to do it... How it works... See also Using OAuth 2.0 Protected APIs Introduction Creating an OAuth 2.0 client using the Authorization Code grant type Getting ready How to do it... How it works... Creating an OAuth 2.0 client using the Implicit grant type Getting ready How to do it... How it works... There's more... See also Creating an OAuth 2.0 client using the Resource Owner Password Credentials grant type Getting ready How to do it... How it works... There's more... See also Creating an OAuth 2.0 client using the Client Credentials grant type Getting ready How to do it... How it works... See also Managing refresh tokens on the client side Getting ready How to do it... How it works... See also Accessing an OAuth 2.0 protected API with RestTemplate Getting ready How to do it... How it works... See also OAuth 2.0 Profiles Introduction Revoking issued tokens Getting ready How to do it... How it works... Remote validation using token introspection Getting ready How to do it... How it works... There's more... Improving performance using cache for remote validation Getting ready How to do it... How it works... See also Using Gatling to load test remote token validation Getting ready How to do it... There's more... See also Dynamic client registration Getting ready How to do it... How it works... There's more... See also Self Contained Tokens with JWT Introduction Generating access tokens as JWT Getting ready How to do it... How it works... See also Validating JWT tokens at the Resource Server side Getting ready How to do it... How it works... There's more... See also Adding custom claims on JWT Getting ready How to do it... How it works... See also Asymmetric signing of a JWT token Getting ready How to do it... How it works... See also Validating asymmetric signed JWT token Getting ready How to do it... How it works... See also Using JWE to cryptographically protect JWT tokens Getting ready How to do it... How it works... See also Using JWE at the Resource Server side Getting ready How to do it... How it works... See also Using proof-of-possession key semantics on OAuth 2.0 Provider Getting ready How to do it... How it works... There's more... See also Using proof-of-possession key on the client side Getting ready How to do it... How it works... See also OpenID Connect for Authentication Introduction Authenticating Google's users through Google OpenID Connect Getting ready How to do it... How it works... See also Obtaining user information from Identity Provider Getting ready How to do it... How it works... There's more... See also Using Facebook to authenticate users Getting ready How to do it... How it works... See also Using Google OpenID Connect with Spring Security 5 Getting ready How to do it... How it works... See also Using Microsoft and Google OpenID providers together with Spring Security 5 Getting ready How to do it... How it works... See also Implementing Mobile Clients Introduction Preparing an Android development environment Getting ready How to do it... How it works... Creating an Android OAuth 2.0 client using an Authorization Code with the system browser Getting ready How to do it... How it works... There's more... See also Creating an Android OAuth 2.0 client using the Implicit grant type with the system browser Getting ready How to do it... How it works... See also Creating an Android OAuth 2.0 client using the embedded browser Getting ready How to do it... How it works... See also Using the Password grant type for client apps provided by the OAuth 2 server Getting ready How to do it... How it works... There's more... See also Protecting an Android client with PKCE Getting ready How to do it... How it works... See also Using dynamic client registration with mobile applications Getting ready How to do it... How it works... See also Avoiding Common Vulnerabilities Introduction Validating the Resource Server audience Getting ready How to do it... How it works... Protecting Resource Server with scope validation Getting ready How to do it... How it works... Binding scopes with user roles to protect user's resources Getting ready How to do it... How it works... See also Protecting the client against Authorization Code injection Getting ready How to do it... How it works... Protecting the Authorization Server from invalid redirection Getting ready How to do it... How it works...