Spring Security整合KeyCloak保护Rest API

时间 2019-11-09

标签 spring security 整合 keycloak 保护 rest api 栏目 Spring 繁體版

原文原文链接

今天咱们尝试Spring Security整合Keycloak，并决定创建一个很是简单的Spring Boot微服务，使用Keycloak做为个人身份验证源，使用Spring Security处理身份验证和受权。html

设置Keycloak

首先咱们须要一个Keycloak实例，让咱们启动Jboss提供的Docker容器：

docker run -d \
  --name springboot-security-keycloak-integration \
  -e KEYCLOAK_USER=admin \
  -e KEYCLOAK_PASSWORD=admin \
  -p 9001:8080 \
  jboss/keycloak
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在此以后，咱们只需登陆到容器并导航到bin文件夹。

docker exec -it springboot-security-keycloak-integration /bin/bash
cd keycloak/bin
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首先，咱们须要从CLI客户端登陆keycloak服务器，以后咱们再也不须要身份验证：

./kcadm.sh config credentials --server http://localhost:8080/auth --realm master --user admin --password admin
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配置realm

首先，咱们须要建立一个realm:

./kcadm.sh create realms -s realm=springboot-security-keycloak-integration -s enabled=true

Created new realm with id 'springboot-security-keycloak-integration'
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以后，咱们须要建立2个客户端，这将为咱们的应用程序提供身份验证。首先咱们建立一个cURL客户端，这样咱们就能够经过命令行命令登陆：

./kcadm.sh create clients -r springboot-security-keycloak-integration -s clientId=curl -s enabled=true -s publicClient=true -s baseUrl=http://localhost:8080 -s adminUrl=http://localhost:8080 -s directAccessGrantsEnabled=true

Created new client with id '8f0481cd-3bbb-4659-850f-6088466a4d89'
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重要的是要注意2个选项：publicClient=true和 directAccessGrantsEnabled=true。第一个使这个客户端公开，这意味着咱们的cURL客户端能够在不提供任何秘密的状况下启动登陆。第二个使咱们可以使用用户名和密码直接登陆。java

其次，咱们建立了一个由REST服务使用的客户端：

./kcadm.sh create clients -r springboot-security-keycloak-integration -s clientId=springboot-security-keycloak-integration-client -s enabled=true -s baseUrl=http://localhost:8080 -s bearerOnly=true

Created new client with id 'ab9d404e-6d5b-40ac-9bc3-9e2e26b68213'
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这里的重要配置是bearerOnly=true。这告诉Keycloak客户端永远不会启动登陆过程，可是当它收到Bearer令牌时，它将检查所述令牌的有效性。git

咱们应该注意保留这些ID，由于咱们将在接下来的步骤中使用它们。github

咱们有两个客户端，接下来是为spring-security-keycloak-example-app客户建立角色

Admin Role:web

./kcadm.sh create clients/ab9d404e-6d5b-40ac-9bc3-9e2e26b68213/roles -r springboot-security-keycloak-integration -s name=admin -s 'description=Admin role'

Created new role with id 'admin'
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User Role:spring

./kcadm.sh create clients/ab9d404e-6d5b-40ac-9bc3-9e2e26b68213/roles -r springboot-security-keycloak-integration -s name=user -s 'description=User role'

Created new role with id 'user'
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注意client后的id是咱们建立客户端输出的iddocker

最后，咱们应该获取客户端的配置，以便稍后提供给咱们的应用程序：

./kcadm.sh  get clients/ab9d404e-6d5b-40ac-9bc3-9e2e26b68213/installation/providers/keycloak-oidc-keycloak-json -r springboot-security-keycloak-integration
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注意client后的id是咱们建立客户端输出的idexpress

应该返回相似于此的内容：apache

{
  "realm" : "springboot-security-keycloak-integration",
  "bearer-only" : true,
  "auth-server-url" : "http://localhost:8080/auth",
  "ssl-required" : "external",
  "resource" : "springboot-security-keycloak-integration-client",
  "verify-token-audience" : true,
  "use-resource-role-mappings" : true,
  "confidential-port" : 0
}
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配置用户

出于演示目的，咱们建立2个具备2个不一样角色的用户，以便咱们验证受权是否有效。json

首先，让咱们建立一个具备admin角色的用户：

建立admin用户：

./kcadm.sh create users -r springboot-security-keycloak-integration -s username=admin -s enabled=true

Created new user with id '50c11a76-a8ff-42b1-80cb-d82cb3e7616d'
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设置admin密码：

./kcadm.sh update users/50c11a76-a8ff-42b1-80cb-d82cb3e7616d/reset-password -r springboot-security-keycloak-integration -s type=password -s value=admin -s temporary=false -n
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value: 用户密码

追加到admin角色中

./kcadm.sh add-roles -r springboot-security-keycloak-integration --uusername=admin --cclientid springboot-security-keycloak-integration-client --rolename admin
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注意：从不在生产中使用此方法，它仅用于演示目的！

而后咱们建立另外一个用户，此次有角色user：

建立user用户：

./kcadm.sh create users -r springboot-security-keycloak-integration -s username=user -s enabled=true

Created new user with id '624434c8-bce4-4b5b-b81f-e77304785803'
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设置user密码：

./kcadm.sh update users/624434c8-bce4-4b5b-b81f-e77304785803/reset-password -r springboot-security-keycloak-integration -s type=password -s value=admin -s temporary=false -n
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追加到user角色中：

./kcadm.sh add-roles -r springboot-security-keycloak-integration --uusername=user --cclientid springboot-security-keycloak-integration-client --rolename user
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Rest服务

咱们已经配置了Keycloak并准备使用，咱们只须要一个应用程序来使用它！因此咱们建立一个简单的Spring Boot应用程序。我会在这里使用maven构建项目：

<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

    <modelVersion>4.0.0</modelVersion>
    <groupId>com.edurt.sski</groupId>
    <artifactId>springboot-security-keycloak-integration</artifactId>
    <packaging>jar</packaging>
    <version>1.0.0</version>

    <name>springboot security keycloak integration</name>
    <description>SpringBoot Security KeyCloak Integration is a open source springboot, spring security, keycloak
        integration example.
    </description>

    <properties>
        <!-- dependency config -->
        <dependency.lombox.version>1.16.16</dependency.lombox.version>
        <dependency.springboot.common.version>1.5.6.RELEASE</dependency.springboot.common.version>
        <dependency.keycloak.version>3.1.0.Final</dependency.keycloak.version>
        <!-- plugin config -->
        <plugin.maven.compiler.version>3.3</plugin.maven.compiler.version>
        <plugin.maven.javadoc.version>2.10.4</plugin.maven.javadoc.version>
        <!-- environment config -->
        <environment.compile.java.version>1.8</environment.compile.java.version>
        <!-- reporting config -->
        <reporting.maven.jxr.version>2.5</reporting.maven.jxr.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${dependency.springboot.common.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <!-- lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>${dependency.lombox.version}</version>
        </dependency>
        <!-- springboot -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <!-- keycloak -->
        <dependency>
            <groupId>org.keycloak</groupId>
            <artifactId>keycloak-spring-boot-starter</artifactId>
            <version>${dependency.keycloak.version}</version>
        </dependency>
        <dependency>
            <groupId>org.keycloak</groupId>
            <artifactId>keycloak-spring-security-adapter</artifactId>
            <version>${dependency.keycloak.version}</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${plugin.maven.compiler.version}</version>
                <configuration>
                    <source>${environment.compile.java.version}</source>
                    <target>${environment.compile.java.version}</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-javadoc-plugin</artifactId>
                <version>${plugin.maven.javadoc.version}</version>
                <configuration>
                    <aggregate>true</aggregate>
                    <!-- custom tags -->
                    <tags>
                        <tag>
                            <name>Description</name>
                            <placement>test</placement>
                            <head>description</head>
                        </tag>
                    </tags>
                    <!-- close jdoclint check document -->
                    <additionalparam>-Xdoclint:none</additionalparam>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <reporting>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jxr-plugin</artifactId>
                <version>${reporting.maven.jxr.version}</version>
            </plugin>
        </plugins>
    </reporting>

</project>
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添加全部必需的依赖项：

spring-security 用于保护应用程序
keycloak-spring-boot-starter 使用Keycloak和Spring Boot
keycloak-spring-security-adapter 与Spring Security集成

一个简单的应用类：

/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */
package com.edurt.sski;

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

/** * <p> SpringBootSecurityKeyCloakIntegration </p> * <p> Description : SpringBootSecurityKeyCloakIntegration </p> * <p> Author : qianmoQ </p> * <p> Version : 1.0 </p> * <p> Create Time : 2019-02-18 14:45 </p> * <p> Author Email: <a href="mailTo:shichengoooo@163.com">qianmoQ</a> </p> */
@SpringBootApplication
public class SpringBootSecurityKeyCloakIntegration {

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

}
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Rest API接口：

/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */
package com.edurt.sski.controller;

import org.springframework.security.access.annotation.Secured;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

/** * <p> HelloController </p> * <p> Description : HelloController </p> * <p> Author : qianmoQ </p> * <p> Version : 1.0 </p> * <p> Create Time : 2019-02-18 14:50 </p> * <p> Author Email: <a href="mailTo:shichengoooo@163.com">qianmoQ</a> </p> */
@RestController
public class HelloController {

    @GetMapping(value = "/admin")
    @Secured("ROLE_ADMIN")
    public String admin() {
        return "Admin";
    }

    @GetMapping("/user")
    @Secured("ROLE_USER")
    public String user() {
        return "User";
    }

}
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最后是keycloak配置：

/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */
package com.edurt.sski.config;

import org.keycloak.adapters.KeycloakConfigResolver;
import org.keycloak.adapters.springboot.KeycloakSpringBootConfigResolver;
import org.keycloak.adapters.springsecurity.authentication.KeycloakAuthenticationProvider;
import org.keycloak.adapters.springsecurity.config.KeycloakWebSecurityConfigurerAdapter;
import org.keycloak.adapters.springsecurity.filter.KeycloakAuthenticationProcessingFilter;
import org.keycloak.adapters.springsecurity.filter.KeycloakPreAuthActionsFilter;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
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.configuration.EnableWebSecurity;
import org.springframework.security.core.authority.mapping.GrantedAuthoritiesMapper;
import org.springframework.security.core.authority.mapping.SimpleAuthorityMapper;
import org.springframework.security.web.authentication.session.NullAuthenticatedSessionStrategy;
import org.springframework.security.web.authentication.session.SessionAuthenticationStrategy;

/** * <p> KeycloakSecurityConfigurer </p> * <p> Description : KeycloakSecurityConfigurer </p> * <p> Author : qianmoQ </p> * <p> Version : 1.0 </p> * <p> Create Time : 2019-02-18 14:51 </p> * <p> Author Email: <a href="mailTo:shichengoooo@163.com">qianmoQ</a> </p> */
@Configuration
@EnableWebSecurity
public class KeycloakSecurityConfigurer extends KeycloakWebSecurityConfigurerAdapter {

    @Bean
    public GrantedAuthoritiesMapper grantedAuthoritiesMapper() {
        SimpleAuthorityMapper mapper = new SimpleAuthorityMapper();
        mapper.setConvertToUpperCase(true);
        return mapper;
    }

    @Override
    protected KeycloakAuthenticationProvider keycloakAuthenticationProvider() {
        final KeycloakAuthenticationProvider provider = super.keycloakAuthenticationProvider();
        provider.setGrantedAuthoritiesMapper(grantedAuthoritiesMapper());
        return provider;
    }

    @Override
    protected void configure(final AuthenticationManagerBuilder auth) throws Exception {
        auth.authenticationProvider(keycloakAuthenticationProvider());
    }

    @Override
    protected SessionAuthenticationStrategy sessionAuthenticationStrategy() {
        return new NullAuthenticatedSessionStrategy();
    }

    @Override
    protected void configure(final HttpSecurity http) throws Exception {
        super.configure(http);
        http
                .authorizeRequests()
                .antMatchers("/admin").hasRole("ADMIN")
                .antMatchers("/user").hasRole("USER")
                .anyRequest().permitAll();
    }

    @Bean
    KeycloakConfigResolver keycloakConfigResolver() {
        return new KeycloakSpringBootConfigResolver();
    }

    @Bean
    public FilterRegistrationBean keycloakAuthenticationProcessingFilterRegistrationBean( final KeycloakAuthenticationProcessingFilter filter) {
        final FilterRegistrationBean registrationBean = new FilterRegistrationBean(filter);
        registrationBean.setEnabled(false);
        return registrationBean;
    }

    @Bean
    public FilterRegistrationBean keycloakPreAuthActionsFilterRegistrationBean( final KeycloakPreAuthActionsFilter filter) {
        final FilterRegistrationBean registrationBean = new FilterRegistrationBean(filter);
        registrationBean.setEnabled(false);
        return registrationBean;
    }

}
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KeycloakSecurityConfigurer类扩展 KeycloakWebSecurityConfigurerAdapter，这是Keycloak提供的类，它提供与Spring Security的集成。

而后咱们经过添加SimpleAuthorityMapper配置身份验证管理器，它负责转换来自Keycloak的角色名称以匹配Spring Security的约定。基本上Spring Security指望以ROLE_前缀开头的角色，ROLE_ADMIN能够像Keycloak同样命名咱们的角色，或者咱们能够将它们命名为admin，而后使用此映射器将其转换为大写并添加必要的ROLE_前缀：

@Bean
public GrantedAuthoritiesMapper grantedAuthoritiesMapper() {
  SimpleAuthorityMapper mapper = new SimpleAuthorityMapper();
  mapper.setConvertToUpperCase(true);
  return mapper;
}

@Override
protected KeycloakAuthenticationProvider keycloakAuthenticationProvider() {
  final KeycloakAuthenticationProvider provider = super.keycloakAuthenticationProvider();
  provider.setGrantedAuthoritiesMapper(grantedAuthoritiesMapper());
  return provider;
}

@Override
protected void configure(final AuthenticationManagerBuilder auth) throws Exception {
  auth.authenticationProvider(keycloakAuthenticationProvider());
}
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咱们还须要为Keycloak设置会话策略，可是当咱们建立无状态REST服务时，咱们并不真的想要有会话，所以咱们使用NullAuthenticatedSessionStrategy：

@Override
protected SessionAuthenticationStrategy sessionAuthenticationStrategy() {
  return new NullAuthenticatedSessionStrategy();
}
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一般，Keycloak Spring Security集成从keycloak.json文件中解析keycloak配置，可是咱们但愿有适当的Spring Boot配置，所以咱们使用Spring Boot覆盖配置解析器：

@Bean
KeycloakConfigResolver keycloakConfigResolver() {
  return new KeycloakSpringBootConfigResolver();
}
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而后咱们配置Spring Security来受权全部请求：

@Override
protected void configure(final HttpSecurity http) throws Exception {
  super.configure(http);
  http
      .authorizeRequests()
      .anyRequest().permitAll();
}
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最后，根据文档，咱们阻止双重注册Keycloak的过滤器：

@Bean
public FilterRegistrationBean keycloakAuthenticationProcessingFilterRegistrationBean( final KeycloakAuthenticationProcessingFilter filter) {
  final FilterRegistrationBean registrationBean = new FilterRegistrationBean(filter);
  registrationBean.setEnabled(false);
  return registrationBean;
}

@Bean
public FilterRegistrationBean keycloakPreAuthActionsFilterRegistrationBean( final KeycloakPreAuthActionsFilter filter) {
  final FilterRegistrationBean registrationBean = new FilterRegistrationBean(filter);
  registrationBean.setEnabled(false);
  return registrationBean;
}
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最后，咱们须要application.properties使用以前下载的值配置咱们的应用程序：

server.port=9002
keycloak.realm=springboot-security-keycloak-integration
keycloak.bearer-only=true
keycloak.auth-server-url=http://localhost:9001/auth
keycloak.ssl-required=external
keycloak.resource=springboot-security-keycloak-integration-client
keycloak.use-resource-role-mappings=true
keycloak.principal-attribute=preferred_username
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使用应用程序

使用curl咱们建立的客户端进行身份验证，以获取访问令牌：

export TOKEN=`curl -ss --data "grant_type=password&client_id=curl&username=admin&password=admin" http://localhost:9001/auth/realms/springboot-security-keycloak-integration/protocol/openid-connect/token | jq -r .access_token`
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这将收到的访问令牌存储在TOKEN变量中。

如今咱们能够检查咱们的管理员是否能够访问本身的/admin接口

curl -H "Authorization: bearer $TOKEN" http://localhost:9002/admin

Admin
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但它没法访问/user接口：

$ curl -H "Authorization: bearer $TOKEN" http://localhost:9002/user

{"timestamp":1498728302626,"status":403,"error":"Forbidden","message":"Access is denied","path":"/user"}
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对于user用户也是如此，user用户没法访问admin接口。

源码地址：GitHub