Auth2.0入门学习实践

一、理论准备

     关于理论，这里不做过多的介绍，如果想要更多的了解，可以参考下面这个地址

    http://ifeve.com/oauth2-tutorial-all/

 

二、Auth2.0的几种模式的实践

       俗话说，实践出真知，理论讲再多都是扯蛋。

       通过了解，我们知道，在auth2.0的世界里，有针对几种不同的情况有不同的实现方式，分别是客户端、用户名及密码、授权码、隐式授权等。我这里目前对隐式授权的方式没有深入的研究，所以不对这种情况做进一步的说明

 

1、工程目录介绍

       我这里工程是以Springboot为框架，如果是使用SpringCloud微服务架构的朋友，使用的方式也是一模一样的。

      总体模块如下：

    下面来看分模块

    （1）针对客户模式的相关配置

     

    AuthorizationServerConfig类的内容如下：

package com.hl.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
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 javax.sql.DataSource;

@Configuration
@EnableAuthorizationServer
public class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter {

    @Autowired
    private AuthenticationManager authenticationManager;

    @Autowired
    private RedisConnectionFactory connectionFactory;

    @Autowired
    private DataSource dataSource;

    @Bean
    public TokenStore tokenStore() {
        return new MyRedisTokenStore(connectionFactory);
    }

    /*
    * AuthorizationServerEndpointsConfigurer：用来配置授权（authorization）以及令牌（token）的访问端点和令牌服务(token services)。
    * */
    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
        endpoints
                .authenticationManager(authenticationManager)
                .tokenStore(tokenStore()).
                allowedTokenEndpointRequestMethods(HttpMethod.GET, HttpMethod.POST);
    }

    /*
    * AuthorizationServerSecurityConfigurer 用来配置令牌端点(Token Endpoint)的安全约束
    * */
    @Override
    public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
        // 允许表单认证
        security.allowFormAuthenticationForClients().tokenKeyAccess("permitAll()")
                .checkTokenAccess("isAuthenticated()");
    }

    /*

        ClientDetailsServiceConfigurer：用来配置客户端详情服务（ClientDetailsService），客户端详情信息在这里进行初始化，你能够把客户端详情信息写死在这里或者是通过数据库来存储调取详情信息
    *   1.授权码模式（authorization code）
        2.简化模式（implicit）
        3.密码模式（resource owner password credentials）
        4.客户端模式（client credentials）
    * */
    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        String finalSecret = "{bcrypt}" + new BCryptPasswordEncoder().encode("123456");

        clients.
//                jdbc(dataSource).
                inMemory().

                // ================这一段是以客户端的形式获得token===============
                withClient("web-auth")
                .resourceIds("web-auth")
                .authorizedGrantTypes("client_credentials", "refresh_token")
                .scopes("all","read", "write","xxxx") // 这个scope可以自己,请求的时候,需要匹配即可
                .authorities("client_credentials")
                .secret(finalSecret)
                .accessTokenValiditySeconds(1200)
                .refreshTokenValiditySeconds(50000);

//                .and()
//
//                // ================这一段是以密码的形式获得token===============
//                .withClient("by_pwd")
//                .resourceIds("by_pwd")
//                .authorizedGrantTypes("password", "refresh_token")
//                .scopes("server")
//                .authorities("password")
//                .secret(finalSecret)
//                .accessTokenValiditySeconds(1200)
//                .refreshTokenValiditySeconds(50000);
    }
}

      

   MyRedisTokenStore类的内容如下：

package com.hl.config;

import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.security.oauth2.common.ExpiringOAuth2RefreshToken;
import org.springframework.security.oauth2.common.OAuth2AccessToken;
import org.springframework.security.oauth2.common.OAuth2RefreshToken;
import org.springframework.security.oauth2.provider.OAuth2Authentication;
import org.springframework.security.oauth2.provider.token.AuthenticationKeyGenerator;
import org.springframework.security.oauth2.provider.token.DefaultAuthenticationKeyGenerator;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.oauth2.provider.token.store.redis.JdkSerializationStrategy;
import org.springframework.security.oauth2.provider.token.store.redis.RedisTokenStoreSerializationStrategy;

import java.util.*;

public class MyRedisTokenStore implements TokenStore {

    private static final String ACCESS = "access:";
    private static final String AUTH_TO_ACCESS = "auth_to_access:";
    private static final String AUTH = "auth:";
    private static final String REFRESH_AUTH = "refresh_auth:";
    private static final String ACCESS_TO_REFRESH = "access_to_refresh:";
    private static final String REFRESH = "refresh:";
    private static final String REFRESH_TO_ACCESS = "refresh_to_access:";
    private static final String CLIENT_ID_TO_ACCESS = "client_id_to_access:";
    private static final String UNAME_TO_ACCESS = "uname_to_access:";

    private final RedisConnectionFactory connectionFactory;
    private AuthenticationKeyGenerator authenticationKeyGenerator = new DefaultAuthenticationKeyGenerator();
    private RedisTokenStoreSerializationStrategy serializationStrategy = new JdkSerializationStrategy();

    private String prefix = "";

    public MyRedisTokenStore(RedisConnectionFactory connectionFactory) {
        this.connectionFactory = connectionFactory;
    }

    public void setAuthenticationKeyGenerator(AuthenticationKeyGenerator authenticationKeyGenerator) {
        this.authenticationKeyGenerator = authenticationKeyGenerator;
    }

    public void setSerializationStrategy(RedisTokenStoreSerializationStrategy serializationStrategy) {
        this.serializationStrategy = serializationStrategy;
    }

    public void setPrefix(String prefix) {
        this.prefix = prefix;
    }

    private RedisConnection getConnection() {
        return connectionFactory.getConnection();
    }

    private byte[] serialize(Object object) {
        return serializationStrategy.serialize(object);
    }

    private byte[] serializeKey(String object) {
        return serialize(prefix + object);
    }

    private OAuth2AccessToken deserializeAccessToken(byte[] bytes) {
        return serializationStrategy.deserialize(bytes, OAuth2AccessToken.class);
    }

    private OAuth2Authentication deserializeAuthentication(byte[] bytes) {
        return serializationStrategy.deserialize(bytes, OAuth2Authentication.class);
    }

    private OAuth2RefreshToken deserializeRefreshToken(byte[] bytes) {
        return serializationStrategy.deserialize(bytes, OAuth2RefreshToken.class);
    }

    private byte[] serialize(String string) {
        return serializationStrategy.serialize(string);
    }

    private String deserializeString(byte[] bytes) {
        return serializationStrategy.deserializeString(bytes);
    }

    @Override
    public OAuth2AccessToken getAccessToken(OAuth2Authentication authentication) {
        String key = authenticationKeyGenerator.extractKey(authentication);
        byte[] serializedKey = serializeKey(AUTH_TO_ACCESS + key);
        byte[] bytes = null;
        RedisConnection conn = getConnection();
        try {
            bytes = conn.get(serializedKey);
        } finally {
            conn.close();
        }
        OAuth2AccessToken accessToken = deserializeAccessToken(bytes);
        if (accessToken != null) {
            OAuth2Authentication storedAuthentication = readAuthentication(accessToken.getValue());
            if ((storedAuthentication == null || !key.equals(authenticationKeyGenerator.extractKey(storedAuthentication)))) {
                // Keep the stores consistent (maybe the same user is
                // represented by this authentication but the details have
                // changed)
                storeAccessToken(accessToken, authentication);
            }

        }
        return accessToken;
    }

    @Override
    public OAuth2Authentication readAuthentication(OAuth2AccessToken token) {
        return readAuthentication(token.getValue());
    }

    @Override
    public OAuth2Authentication readAuthentication(String token) {
        byte[] bytes = null;
        RedisConnection conn = getConnection();
        try {
            bytes = conn.get(serializeKey(AUTH + token));
        } finally {
            conn.close();
        }
        OAuth2Authentication auth = deserializeAuthentication(bytes);
        return auth;
    }

    @Override
    public OAuth2Authentication readAuthenticationForRefreshToken(OAuth2RefreshToken token) {
        return readAuthenticationForRefreshToken(token.getValue());
    }

    public OAuth2Authentication readAuthenticationForRefreshToken(String token) {
        RedisConnection conn = getConnection();
        try {
            byte[] bytes = conn.get(serializeKey(REFRESH_AUTH + token));
            OAuth2Authentication auth = deserializeAuthentication(bytes);
            return auth;
        } finally {
            conn.close();
        }
    }

    @Override
    public void storeAccessToken(OAuth2AccessToken token, OAuth2Authentication authentication) {
        byte[] serializedAccessToken = serialize(token);
        byte[] serializedAuth = serialize(authentication);
        byte[] accessKey = serializeKey(ACCESS + token.getValue());
        byte[] authKey = serializeKey(AUTH + token.getValue());
        byte[] authToAccessKey = serializeKey(AUTH_TO_ACCESS + authenticationKeyGenerator.extractKey(authentication));
        byte[] approvalKey = serializeKey(UNAME_TO_ACCESS + getApprovalKey(authentication));
        byte[] clientId = serializeKey(CLIENT_ID_TO_ACCESS + authentication.getOAuth2Request().getClientId());

        RedisConnection conn = getConnection();
        try {
            conn.openPipeline();
            conn.stringCommands().set(accessKey, serializedAccessToken);
            conn.set(authKey, serializedAuth);
            conn.set(authToAccessKey, serializedAccessToken);
            if (!authentication.isClientOnly()) {
                conn.rPush(approvalKey, serializedAccessToken);
            }
            conn.rPush(clientId, serializedAccessToken);
            if (token.getExpiration() != null) {
                int seconds = token.getExpiresIn();
                conn.expire(accessKey, seconds);
                conn.expire(authKey, seconds);
                conn.expire(authToAccessKey, seconds);
                conn.expire(clientId, seconds);
                conn.expire(approvalKey, seconds);
            }
            OAuth2RefreshToken refreshToken = token.getRefreshToken();
            if (refreshToken != null && refreshToken.getValue() != null) {
                byte[] refresh = serialize(token.getRefreshToken().getValue());
                byte[] auth = serialize(token.getValue());
                byte[] refreshToAccessKey = serializeKey(REFRESH_TO_ACCESS + token.getRefreshToken().getValue());
                conn.set(refreshToAccessKey, auth);
                byte[] accessToRefreshKey = serializeKey(ACCESS_TO_REFRESH + token.getValue());
                conn.set(accessToRefreshKey, refresh);
                if (refreshToken instanceof ExpiringOAuth2RefreshToken) {
                    ExpiringOAuth2RefreshToken expiringRefreshToken = (ExpiringOAuth2RefreshToken) refreshToken;
                    Date expiration = expiringRefreshToken.getExpiration();
                    if (expiration != null) {
                        int seconds = Long.valueOf((expiration.getTime() - System.currentTimeMillis()) / 1000L)
                                .intValue();
                        conn.expire(refreshToAccessKey, seconds);
                        conn.expire(accessToRefreshKey, seconds);
                    }
                }
            }
            conn.closePipeline();
        } finally {
            conn.close();
        }
    }

    private static String getApprovalKey(OAuth2Authentication authentication) {
        String userName = authentication.getUserAuthentication() == null ? ""
                : authentication.getUserAuthentication().getName();
        return getApprovalKey(authentication.getOAuth2Request().getClientId(), userName);
    }

    private static String getApprovalKey(String clientId, String userName) {
        return clientId + (userName == null ? "" : ":" + userName);
    }

    @Override
    public void removeAccessToken(OAuth2AccessToken accessToken) {
        removeAccessToken(accessToken.getValue());
    }

    @Override
    public OAuth2AccessToken readAccessToken(String tokenValue) {
        byte[] key = serializeKey(ACCESS + tokenValue);
        byte[] bytes = null;
        RedisConnection conn = getConnection();
        try {
            bytes = conn.get(key);
        } finally {
            conn.close();
        }
        OAuth2AccessToken accessToken = deserializeAccessToken(bytes);
        return accessToken;
    }

    public void removeAccessToken(String tokenValue) {
        byte[] accessKey = serializeKey(ACCESS + tokenValue);
        byte[] authKey = serializeKey(AUTH + tokenValue);
        byte[] accessToRefreshKey = serializeKey(ACCESS_TO_REFRESH + tokenValue);
        RedisConnection conn = getConnection();
        try {
            conn.openPipeline();
            conn.get(accessKey);
            conn.get(authKey);
            conn.del(accessKey);
            conn.del(accessToRefreshKey);
            // Don't remove the refresh token - it's up to the caller to do that
            conn.del(authKey);
            List