OAuth 2.0 授权码请求

其他 2018-06-26 20:33:45 阅读次数: 3

关于OAuth 2.0，请参见下面这两篇文章（墙裂推荐）：

《OAuth 2.0》

《Spring Security OAuth 2.0》

纸上得来终觉浅，绝知此事要躬行。理论知识了解以后，最终还是要动手实践，不亲自做一遍永远不知道里面有多少坑。本节的重点是用Spring Security实现授权码模式。

1. maven依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.cjs.example</groupId>
    <artifactId>cjs-oauth2-code-server</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>cjs-oauth2-code-server</name>
    <description></description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security.oauth</groupId>
            <artifactId>spring-security-oauth2</artifactId>
            <version>2.3.3.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

2. 配置Security

package com.cjs.example.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
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;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.provisioning.InMemoryUserDetailsManager;

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        super.configure(auth);
//        auth.inMemoryAuthentication().withUser("zhangsan").password("$2a$10$qsJ/Oy1RmUxFA.YtDT8RJ.Y2kU3U4z0jvd35YmiMOAPpD.nZUIRMC").roles("USER");

    }

    @Override
    public void configure(WebSecurity web) throws Exception {
        super.configure(web);
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        super.configure(http);
    }


    @Bean
    @Override
    protected UserDetailsService userDetailsService() {
        User.UserBuilder builder = User.builder();
        UserDetails user = builder.username("zhangsan").password("$2a$10$GStfEJEyoSHiSxnoP3SbD.R8XRowP1QKOdi.N6/iFEwEJWTQqlSba").roles("USER").build();
        UserDetails admin = builder.username("lisi").password("$2a$10$GStfEJEyoSHiSxnoP3SbD.R8XRowP1QKOdi.N6/iFEwEJWTQqlSba").roles("USER", "ADMIN").build();
        return new InMemoryUserDetailsManager(user, admin);
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }


    public static void main(String[] args) {
        BCryptPasswordEncoder bCryptPasswordEncoder = new BCryptPasswordEncoder();
        System.out.println(bCryptPasswordEncoder.encode("123456"));
        System.out.println(bCryptPasswordEncoder.encode("12345678"));
    }
}

3. 配置授权服务器

package com.cjs.example.config;

import org.springframework.context.annotation.Configuration;
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;


@Configuration
@EnableAuthorizationServer
public class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter {

    @Override
    public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
        super.configure(security);
    }

    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        clients.inMemory()
                .withClient("my-client-1")
                .secret("$2a$10$0jyHr4rGRdQw.X9mrLkVROdQI8.qnWJ1Sl8ly.yzK0bp06aaAkL9W")
                .authorizedGrantTypes("authorization_code", "refresh_token")
                .scopes("all")
                .redirectUris("http://www.baidu.com");
    }

    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
        super.configure(endpoints);
    }

    public static void main(String[] args) {
        System.out.println(new org.apache.tomcat.util.codec.binary.Base64().encodeAsString("my-client-1:12345678".getBytes()));
    }
}

这里客户端的secret是12345678，存储的是加密后的值

4. 启动类

package com.cjs.example;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class CjsOauth2CodeServerApplication {

    public static void main(String[] args) {
        SpringApplication.run(CjsOauth2CodeServerApplication.class, args);
    }
}

到目前为止，好像我们就做了两件事情：一、配置用户；二、注册客户端

现在，我们有两个用户（zhangsan和lisi）以及一个已注册的客户端（my-client-1）

接下来，用postman模拟客户端请求获取access_token

5. 协议端点

我们知道，在获取access_token之前需要用户授权，然后返回一个code，最后用code换access_token

在这个过程中涉及到三个服务器端点：授权端点、重定向端点、令牌端点

通过控制台看看启动日志可能会加深理解：

"C:\Program Files\Java\jdk1.8.0_152\bin\java" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=50329 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=localhost -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2017.3.4\lib\idea_rt.jar=50331:C:\Program Files\JetBrains\IntelliJ IDEA 2017.3.4\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_152\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_152\jre\lib\rt.jar;E:\cjsworkspace\cjs-oauth2-example\cjs-oauth2-code-server\target\classes;C:\Users\Administrator\.m2\repository\org\springframework\boot\spring-boot-starter-security\2.0.3.RELEASE\spring-boot-starter-security-2.0.3.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\boot\spring-boot-starter\2.0.3.RELEASE\spring-boot-starter-2.0.3.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\boot\spring-boot\2.0.3.RELEASE\spring-boot-2.0.3.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.0.3.RELEASE\spring-boot-autoconfigure-2.0.3.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.0.3.RELEASE\spring-boot-starter-logging-2.0.3.RELEASE.jar;C:\Users\Administrator\.m2\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;C:\Users\Administrator\.m2\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;C:\Users\Administrator\.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.10.0\log4j-to-slf4j-2.10.0.jar;C:\Users\Administrator\.m2\repository\org\apache\logging\log4j\log4j-api\2.10.0\log4j-api-2.10.0.jar;C:\Users\Administrator\.m2\repository\org\slf4j\jul-to-slf4j\1.7.25\jul-to-slf4j-1.7.25.jar;C:\Users\Administrator\.m2\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;C:\Users\Administrator\.m2\repository\org\yaml\snakeyaml\1.19\snakeyaml-1.19.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-aop\5.0.7.RELEASE\spring-aop-5.0.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\security\spring-security-config\5.0.6.RELEASE\spring-security-config-5.0.6.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\security\spring-security-web\5.0.6.RELEASE\spring-security-web-5.0.6.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-expression\5.0.7.RELEASE\spring-expression-5.0.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\boot\spring-boot-starter-thymeleaf\2.0.3.RELEASE\spring-boot-starter-thymeleaf-2.0.3.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\thymeleaf\thymeleaf-spring5\3.0.9.RELEASE\thymeleaf-spring5-3.0.9.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\thymeleaf\thymeleaf\3.0.9.RELEASE\thymeleaf-3.0.9.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\attoparser\attoparser\2.0.4.RELEASE\attoparser-2.0.4.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\unbescape\unbescape\1.1.5.RELEASE\unbescape-1.1.5.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;C:\Users\Administrator\.m2\repository\org\thymeleaf\extras\thymeleaf-extras-java8time\3.0.1.RELEASE\thymeleaf-extras-java8time-3.0.1.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\boot\spring-boot-starter-web\2.0.3.RELEASE\spring-boot-starter-web-2.0.3.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\boot\spring-boot-starter-json\2.0.3.RELEASE\spring-boot-starter-json-2.0.3.RELEASE.jar;C:\Users\Administrator\.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.9.6\jackson-databind-2.9.6.jar;C:\Users\Administrator\.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.9.0\jackson-annotations-2.9.0.jar;C:\Users\Administrator\.m2\repository\com\fasterxml\jackson\core\jackson-core\2.9.6\jackson-core-2.9.6.jar;C:\Users\Administrator\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.9.6\jackson-datatype-jdk8-2.9.6.jar;C:\Users\Administrator\.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.9.6\jackson-datatype-jsr310-2.9.6.jar;C:\Users\Administrator\.m2\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.9.6\jackson-module-parameter-names-2.9.6.jar;C:\Users\Administrator\.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\2.0.3.RELEASE\spring-boot-starter-tomcat-2.0.3.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\8.5.31\tomcat-embed-core-8.5.31.jar;C:\Users\Administrator\.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\8.5.31\tomcat-embed-el-8.5.31.jar;C:\Users\Administrator\.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\8.5.31\tomcat-embed-websocket-8.5.31.jar;C:\Users\Administrator\.m2\repository\org\hibernate\validator\hibernate-validator\6.0.10.Final\hibernate-validator-6.0.10.Final.jar;C:\Users\Administrator\.m2\repository\javax\validation\validation-api\2.0.1.Final\validation-api-2.0.1.Final.jar;C:\Users\Administrator\.m2\repository\org\jboss\logging\jboss-logging\3.3.2.Final\jboss-logging-3.3.2.Final.jar;C:\Users\Administrator\.m2\repository\com\fasterxml\classmate\1.3.4\classmate-1.3.4.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-web\5.0.7.RELEASE\spring-web-5.0.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-webmvc\5.0.7.RELEASE\spring-webmvc-5.0.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\security\oauth\spring-security-oauth2\2.3.3.RELEASE\spring-security-oauth2-2.3.3.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-beans\5.0.7.RELEASE\spring-beans-5.0.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-core\5.0.7.RELEASE\spring-core-5.0.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-jcl\5.0.7.RELEASE\spring-jcl-5.0.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\spring-context\5.0.7.RELEASE\spring-context-5.0.7.RELEASE.jar;C:\Users\Administrator\.m2\repository\org\springframework\security\spring-security-core\5.0.6.RELEASE\spring-security-core-5.0.6.RELEASE.jar;C:\Users\Administrator\.m2\repository\commons-codec\commons-codec\1.11\commons-codec-1.11.jar;C:\Users\Administrator\.m2\repository\org\codehaus\jackson\jackson-mapper-asl\1.9.13\jackson-mapper-asl-1.9.13.jar;C:\Users\Administrator\.m2\repository\org\codehaus\jackson\jackson-core-asl\1.9.13\jackson-core-asl-1.9.13.jar;C:\Users\Administrator\.m2\repository\org\projectlombok\lombok\1.16.22\lombok-1.16.22.jar" com.cjs.example.CjsOauth2CodeServerApplication

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.0.3.RELEASE)

2018-06-26 09:44:09.575  INFO 6528 --- [           main] c.c.e.CjsOauth2CodeServerApplication     : Starting CjsOauth2CodeServerApplication on USER-20170302XK with PID 6528 (E:\cjsworkspace\cjs-oauth2-example\cjs-oauth2-code-server\target\classes started by Administrator in E:\cjsworkspace\cjs-oauth2-example\cjs-oauth2-code-server)
2018-06-26 09:44:09.597  INFO 6528 --- [           main] c.c.e.CjsOauth2CodeServerApplication     : No active profile set, falling back to default profiles: default
2018-06-26 09:44:09.762  INFO 6528 --- [           main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@22635ba0: startup date [Tue Jun 26 09:44:09 CST 2018]; root of context hierarchy
2018-06-26 09:44:12.931  INFO 6528 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2018-06-26 09:44:12.997  INFO 6528 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2018-06-26 09:44:12.998  INFO 6528 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.31
2018-06-26 09:44:13.039  INFO 6528 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener   : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files\Java\jdk1.8.0_152\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\ProgramData\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Java\jdk1.8.0_152\bin;C:\Program Files\Java\jdk1.8.0_152\jre\bin;D:\apache\apache-maven-3.5.3\bin;C:\Program Files\Git\cmd;.]
2018-06-26 09:44:13.200  INFO 6528 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2018-06-26 09:44:13.200  INFO 6528 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 3448 ms
2018-06-26 09:44:13.379  INFO 6528 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-06-26 09:44:13.379  INFO 6528 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-06-26 09:44:13.379  INFO 6528 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-06-26 09:44:13.379  INFO 6528 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2018-06-26 09:44:13.379  INFO 6528 --- [ost-startStop-1] .s.DelegatingFilterProxyRegistrationBean : Mapping filter: 'springSecurityFilterChain' to: [/*]
2018-06-26 09:44:13.380  INFO 6528 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Servlet dispatcherServlet mapped to [/]
2018-06-26 09:44:13.529  INFO 6528 --- [           main] .s.o.p.e.FrameworkEndpointHandlerMapping : Mapped "{[/oauth/authorize]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.security.oauth2.provider.endpoint.AuthorizationEndpoint.authorize(java.util.Map<java.lang.String, java.lang.Object>,java.util.Map<java.lang.String, java.lang.String>,org.springframework.web.bind.support.SessionStatus,java.security.Principal)
2018-06-26 09:44:13.530  INFO 6528 --- [           main] .s.o.p.e.FrameworkEndpointHandlerMapping : Mapped "{[/oauth/authorize],methods=[POST],params=[user_oauth_approval]}" onto public org.springframework.web.servlet.View org.springframework.security.oauth2.provider.endpoint.AuthorizationEndpoint.approveOrDeny(java.util.Map<java.lang.String, java.lang.String>,java.util.Map<java.lang.String, ?>,org.springframework.web.bind.support.SessionStatus,java.security.Principal)
2018-06-26 09:44:13.530  INFO 6528 --- [           main] .s.o.p.e.FrameworkEndpointHandlerMapping : Mapped "{[/oauth/token],methods=[POST]}" onto public org.springframework.http.ResponseEntity<org.springframework.security.oauth2.common.OAuth2AccessToken> org.springframework.security.oauth2.provider.endpoint.TokenEndpoint.postAccessToken(java.security.Principal,java.util.Map<java.lang.String, java.lang.String>) throws org.springframework.web.HttpRequestMethodNotSupportedException
2018-06-26 09:44:13.531  INFO 6528 --- [           main] .s.o.p.e.FrameworkEndpointHandlerMapping : Mapped "{[/oauth/token],methods=[GET]}" onto public org.springframework.http.ResponseEntity<org.springframework.security.oauth2.common.OAuth2AccessToken> org.springframework.security.oauth2.provider.endpoint.TokenEndpoint.getAccessToken(java.security.Principal,java.util.Map<java.lang.String, java.lang.String>) throws org.springframework.web.HttpRequestMethodNotSupportedException
2018-06-26 09:44:13.531  INFO 6528 --- [           main] .s.o.p.e.FrameworkEndpointHandlerMapping : Mapped "{[/oauth/check_token]}" onto public java.util.Map<java.lang.String, ?> org.springframework.security.oauth2.provider.endpoint.CheckTokenEndpoint.checkToken(java.lang.String)
2018-06-26 09:44:13.531  INFO 6528 --- [           main] .s.o.p.e.FrameworkEndpointHandlerMapping : Mapped "{[/oauth/confirm_access]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.security.oauth2.provider.endpoint.WhitelabelApprovalEndpoint.getAccessConfirmation(java.util.Map<java.lang.String, java.lang.Object>,javax.servlet.http.HttpServletRequest) throws java.lang.Exception
2018-06-26 09:44:13.531  INFO 6528 --- [           main] .s.o.p.e.FrameworkEndpointHandlerMapping : Mapped "{[/oauth/error]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.security.oauth2.provider.endpoint.WhitelabelErrorEndpoint.handleError(javax.servlet.http.HttpServletRequest)
2018-06-26 09:44:13.760  INFO 6528 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-06-26 09:44:14.019  INFO 6528 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@22635ba0: startup date [Tue Jun 26 09:44:09 CST 2018]; root of context hierarchy
2018-06-26 09:44:14.049  INFO 6528 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2018-06-26 09:44:14.049  INFO 6528 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2018-06-26 09:44:14.062  INFO 6528 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-06-26 09:44:14.063  INFO 6528 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-06-26 09:44:14.103  WARN 6528 --- [           main] ion$DefaultTemplateResolverConfiguration : Cannot find template location: classpath:/templates/ (please add some templates or check your Thymeleaf configuration)
2018-06-26 09:44:14.806  INFO 6528 --- [           main] o.s.s.web.DefaultSecurityFilterChain     : Creating filter chain: OrRequestMatcher [requestMatchers=[Ant [pattern='/oauth/token'], Ant [pattern='/oauth/token_key'], Ant [pattern='/oauth/check_token']]], [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter@5aae8eb5, org.springframework.security.web.context.SecurityContextPersistenceFilter@1473b8c0, org.springframework.security.web.header.HeaderWriterFilter@4e38d975, org.springframework.security.web.authentication.logout.LogoutFilter@5dc3fcb7, org.springframework.security.web.authentication.www.BasicAuthenticationFilter@7a639ec5, org.springframework.security.web.savedrequest.RequestCacheAwareFilter@749f539e, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter@7a18e8d, org.springframework.security.web.authentication.AnonymousAuthenticationFilter@76954a33, org.springframework.security.web.session.SessionManagementFilter@5972d253, org.springframework.security.web.access.ExceptionTranslationFilter@2d195ee4, org.springframework.security.web.access.intercept.FilterSecurityInterceptor@6fca2a8f]
2018-06-26 09:44:14.865  INFO 6528 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2018-06-26 09:44:14.901  INFO 6528 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2018-06-26 09:44:14.904  INFO 6528 --- [           main] c.c.e.CjsOauth2CodeServerApplication     : Started CjsOauth2CodeServerApplication in 6.298 seconds (JVM running for 8.287)

5.1. 授权端点

请求

参数名称 描述
response_type 必填。将其值设置为code表示如果成功的话将收到一个授权码。
client_id 必填。客户端标识。
redirect_uri 可选。重定向URI虽然不是必须的，但是你的服务应该会需要它。而且，这个URL必须和授权服务端注册的redirect_id一致。
scope 可选。请求可能会有一个或多个scope值。授权服务器会把客户端请求的范围(scope)展示给用户看。
state 推荐。state参数用于应用存储特定的请求数据的可以防止CSRF攻击。授权服务器必须原封不动地将这个值返回给应用。

例如：

http://localhost:8080/oauth/authorize?response_type=code&client_id=my-client-1&redirect_uri=http://www.baidu.com&scope=all

响应

参数名称 描述
code 授权码，稍后用此授权码交换访问令牌
state 请求时带的state参数

例如：

https://www.baidu.com/?code=7Zudn6

5.2. 令牌端点

请求

参数名称 描述
grant_type 必填。参数值必须是"authorization_code"
code 必填。之前收到的授权码
redirect_uri 可能是必填的。如果授权请求的时候有redirect_uri，那么token请求的时候也必须带上这个参数，二者的值必须是一样的。
client_id 客户端标识，如果没有其它的客户端认证存在的话这个参数是必须的。

关于客户端认证补充一点

授权服务器可以通过HTTP Basic Auth方式对客户端进行认证，也可以通过在请求中加一个client_secret参数来对客户端进行认证。

不建议将客户端的secret直接作为参数放到client_secret中，而且这种方式下client_id和client_secret都是必填参数。

特别注意，用户（资源所有者）的用户名和密码跟客户端的用户名和密码（client_id、client_secret）不是一套，它们是两个东西。

那么，通过HTTP Basic Auth如何对客户端进行认证呢？客户端需要怎样传参呢？

需要在请求header中设置Authorization，它的值是Basic + 空格 + Base64加密后的client_id:secret

至于为什么，那是协议要求的，具体可以参考https://tools.ietf.org/html/rfc2617#page-5，格式如下：

例如：

POST /oauth/token HTTP/1.1
Content-Type: application/x-www-form-urlencoded
Authorization: Basic bXktY2xpZW50LTE6MTIzNDU2Nzg=
cache-control: no-cache
Postman-Token: baf729b9-f030-41c1-b6fb-d740b0c5c573
User-Agent: PostmanRuntime/7.1.1
Accept: */*
Host: localhost:8080
cookie: JSESSIONID=45EAF00C9829B9F569579DB08533D850; UISESSION=2A65FF6FC8C6BE415DE3C043E3EDAAA4
accept-encoding: gzip, deflate
content-length: 103
Connection: keep-alive

grant_type=authorization_code&code=7Zudn6&redirect_uri=http%3A%2F%2Fwww.baidu.com&client_id=my-client-1

6. 客户端请求

直接在浏览器中输入以下地址，然后会跳到登录授权页面

http://localhost:8080/oauth/authorize?response_type=code&client_id=my-client-1&redirect_uri=http://www.baidu.com&scope=all

上面这两个页面都是默认自带的

授权成功以后重定向

有了授权码以后就可以换取access_token了

这个请求中唯一需要注意的一个参数就是Authorization，这是用于认证客户端的，本例中它是这样算出来的

public static void main(String[] args) {
    System.out.println(new org.apache.tomcat.util.codec.binary.Base64().encodeAsString("my-client-1:12345678".getBytes()));
    System.out.println(java.util.Base64.getEncoder().encodeToString("my-client-1:12345678".getBytes()));
}

所以，最终是Basic bXktY2xpZW50LTE6MTIzNDU2Nzg=

到此为止，我们只是获得了access_token，下一节将讲解如何配置资源服务器，以及客户端访问受保护的资源。

另外，本例中关于令牌的存储，以及客户端注册都是在内存中，实际生产过程中肯定是要存储到数据库中的，这一部分以后有时间再写吧！

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