OAuth2.0 Client Mode Tutorial (5)

@toc OAuth2.0 series blog:

Basic Concept and Operation Process of OAuth2.0 Series (1)
OAuth2.0 Authorization Mode Tutorial (part 2)
OAuth2.0 Simplified Mode Tutorial (Part 3)
OAuth2.0 Series of Password mode practice tutorial (4)
OAuth2.0 Client Mode Tutorial (5)
OAuth2.0 Series information database storage tutorial (6)
OAuth2.0 Redis Information Storage Tutorial (7)
OAuth2.0 JWT Token Tutorial (8)
OAuth2.0 series integrated JWT for single sign-on

1. Introduction to client mode

1.1 Introduction

In the previous article, we learned some basic concepts of OAuth2, gained a basic understanding of OAuth2, and then studied the client mode in the OAuth2.0 authorization mode

Ps: OAuth2.0 authorization mode can be divided into:

Authorization Code
Simplified patterns (Implicit)
Password mode (Resource owner Password Credentials)
Client credentials

Client credentials: The client credentials mode applies to command line applications without a front end, that is, token requests are made on the command line

1.2 Authorization Flow Chart

Official website photo:

(A) The client provides client_ID and other information to the authorization server for authentication
(B) The acceptToken is returned to the client after the authorization is approved

In terms of tuning interface, simply put:

Step one: access token http://localhost:8888/oauth/token? client_id=cms&client_secret=secret&grant_type=client_credentials&scope=all
Step 2: After receiving acceptToken, you can access the resource directly

http://localhost:8084/api/userinfo?access_token=${accept_token}

2. Examples and practices

2.1 Preparation of the experimental environment

IntelliJ IDEA
Maven3.+ Create a SpringBoot Initializer project and name it password

 <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
 <! -- Spring Cloud Oauth2-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-oauth2</artifactId>
        </dependency>
        <! -- Spring Cloud Security-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-security</artifactId>
        </dependency>
Copy the code

2.2 OAuth2.0 role

From the previous study, we know that OAuth2.0 mainly includes the following roles. The following code examples deepen the understanding of the theory

Resource Owner
User Agent
The Client (Client)
Authorization Server
Resource Server

Production, resource, and authorization servers are typically kept separate, but learning can be kept together

Define the resource server with the @enableresourceserver annotation; Define authorization server, use annotations @ EnableAuthorizationServer;

2.3 OAuth2.0 configuration class

package com.example.oauth2.clientcredentials.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableAuthorizationServer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerSecurityConfigurer;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.oauth2.provider.token.store.InMemoryTokenStore;


/** ** <pre> * OAuth2.0 configuration class * </pre> ** <pre> *@authorMazq * Modified Record * Modified by: Date: 2020/06/11 11:00 Modified Content: * </pre> */
@Configuration
// Enable the authorization service
@EnableAuthorizationServer
public class OAuth2Config extends AuthorizationServerConfigurerAdapter {

    @Autowired
    private AuthenticationManager authenticationManager;

    private static final String CLIENT_ID = "cms";
    private static final String SECRET_CHAR_SEQUENCE = "{noop}secret";
    private static final String SCOPE_READ = "read";
    private static final String SCOPE_WRITE = "write";
    private static final String TRUST = "trust";
    private static final String USER ="user";
    private static final String ALL = "all";
    private static final int ACCESS_TOKEN_VALIDITY_SECONDS = 2*60;
    private static final int FREFRESH_TOKEN_VALIDITY_SECONDS = 2*60;
    // Password mode Authorization mode
    private static final String GRANT_TYPE_PASSWORD = "password";
    // Authorization code mode
    private static final String AUTHORIZATION_CODE = "authorization_code";
    / / refresh token mode
    private static final String REFRESH_TOKEN = "refresh_token";
    // Simplify the authorization mode
    private static final String IMPLICIT = "implicit";
    // Client mode
    private static final String CLIENT_CREDENTIALS="client_credentials";
    // Specify which resources require authorization validation
    private static final String RESOURCE_ID = "resource_id";

    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        clients
                // Use memory storage
                .inMemory()
                // Mark the client ID
                .withClient(CLIENT_ID)
                // Client security code
                .secret(SECRET_CHAR_SEQUENCE)
                // Return code for true direct automatic authorization success
                .autoApprove(true)
                .redirectUris("http://127.0.0.1:8084/cms/login") // Redirect the URI
                // Allow the scope of authorization
                .scopes(ALL)
                / / token time seconds
                .accessTokenValiditySeconds(ACCESS_TOKEN_VALIDITY_SECONDS)
                // Refresh the token time in seconds
                .refreshTokenValiditySeconds(FREFRESH_TOKEN_VALIDITY_SECONDS)
                // Allowed authorization type
                .authorizedGrantTypes(CLIENT_CREDENTIALS );
    }

    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
        // Use memory to store the generated token
        endpoints.authenticationManager(authenticationManager).tokenStore(memoryTokenStore());
    }

    /** * Authentication server security configuration **@param security
     * @throws Exception
     */
    @Override
    public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
        security
                //.realm(RESOURCE_ID)
                // Enable /oauth/token_key authentication port permission access
                .tokenKeyAccess("isAuthenticated()")
                // Enable /oauth/check_token authentication port authentication permission access
                .checkTokenAccess("isAuthenticated()")
                // Allow form authentication
                .allowFormAuthenticationForClients();
    }

    @Bean
    public TokenStore memoryTokenStore(a) {
        // The most basic InMemoryTokenStore generates tokens
        return newInMemoryTokenStore(); }}Copy the code

2.4 Security Configuration Classes

To test, you can do simple SpringSecurity

package com.example.oauth2.clientcredentials.config;


import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.Order;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;

/ * * * < pre > * SpringSecurity configuration class * < / pre > < pre > * * *@authorMazq * Modified Record * Modified by: Date: 2020/06/11 11:23 Modified Content: * </pre> */
@Configuration
@EnableWebSecurity
@Order(1)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean(a) throws Exception {
        return super.authenticationManagerBean();
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {    //auth.inMemoryAuthentication()
        auth.inMemoryAuthentication()
                .withUser("nicky")
                .password("{noop}123")
                .roles("admin");
    }

    @Override
    public void configure(WebSecurity web) throws Exception {
        // Resolve static resource interception
        web.ignoring().antMatchers("/asserts/**");
        web.ignoring().antMatchers("/favicon.ico");
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http   // Configure the login page and allow access
                //.formLogin().permitAll()
                // Configure Basic login
                //.and().httpBasic()
                // Configure the logout page
                .logout().logoutUrl("/logout").logoutSuccessUrl("/")
                // Configure the links to allow access
                .and().authorizeRequests().antMatchers("/oauth/**"."/login/**"."/logout/**"."/api/**").permitAll()
                // All other requests require authentication
                .anyRequest().authenticated()
                // Disable cross-domain protection;.and().csrf().disable(); }}Copy the code

2.5 Simple function test

When the response_type parameter is passed to the postman interface, the response_type parameter is passed to the postman interface.

http://localhost:8888/oauth/token?client_id=cms&client_secret=secret&grant_type=client_credentials&scope=all

Username = client_id and password = client_secret

Code request, can be encapsulated as follows, that is, base64 encryption

HttpHeaders headers = new HttpHeaders();
        byte[] key = (clientId+":"+clientSecret).getBytes();
        String authKey = new String(Base64.encodeBase64(key));
        LOG.info("Authorization:{}"."Basic "+authKey);
        headers.add("Authorization"."Basic "+authKey);
Copy the code

Get a token to adjust business interface directly: http://localhost:8888/api/userinfo? access_token=61b113f3-f1e2-473e-a6d7-a0264bfdfa8d

Example code download

1. Introduction to client mode

1.1 Introduction

1.2 Authorization Flow Chart

2. Examples and practices

2.1 Preparation of the experimental environment

2.2 OAuth2.0 role

2.3 OAuth2.0 configuration class

2.4 Security Configuration Classes

2.5 Simple function test

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