在Java中,Activiti是一个流行的工作流引擎,而OAuth2是一种授权框架。将Activiti与OAuth2集成可以实现安全的访问控制和认证。以下是实现这一集成的步骤:
首先,你需要一个OAuth2服务器来处理授权和令牌请求。你可以使用Spring Security来实现OAuth2服务器。
在你的pom.xml
中添加Spring Security和OAuth2的依赖:
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-oauth2-server</artifactId>
<version>5.6.1</version>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-oauth2-jose</artifactId>
<version>5.6.1</version>
</dependency>
创建一个配置类来设置OAuth2服务器:
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.oauth2.server.authorization.config.annotation.web.configuration.OAuth2AuthorizationServerConfiguration;
import org.springframework.security.oauth2.server.authorization.settings.AuthorizationServerSettings;
import org.springframework.security.oauth2.server.authorization.settings.ClientSettings;
import org.springframework.security.oauth2.server.authorization.settings.TokenSettings;
@Configuration
public class OAuth2ServerConfig {
@Bean
public AuthorizationServerSettings authorizationServerSettings() {
return AuthorizationServerSettings.builder().build();
}
@Bean
public ClientSettings clientSettings() {
return ClientSettings.builder().build();
}
@Bean
public TokenSettings tokenSettings() {
return TokenSettings.builder().build();
}
@Bean
public OAuth2AuthorizationServerConfiguration authorizationServerConfiguration() {
return new OAuth2AuthorizationServerConfiguration();
}
}
你需要配置客户端的详细信息,包括客户端ID、密钥和授权类型。
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.oauth2.server.authorization.config.annotation.web.configuration.OAuth2ClientConfigurer;
import org.springframework.security.oauth2.server.authorization.config.annotation.web.configuration.OAuth2ResourceServerConfigurer;
import org.springframework.security.oauth2.server.authorization.config.annotation.web.configurers.OAuth2AuthorizationServerConfigurerAdapter;
import org.springframework.security.oauth2.server.authorization.settings.ClientSettings;
import org.springframework.security.oauth2.server.resource.authentication.JwtAuthenticationConverter;
@Configuration
public class OAuth2ClientConfig {
@Bean
public OAuth2ResourceServerConfigurer resourceServerConfigurer(JwtAuthenticationConverter jwtAuthenticationConverter) {
return new OAuth2ResourceServerConfigurerAdapter() {
@Override
public void configure(HttpSecurity http) throws Exception {
http.authorizeRequests()
.antMatchers("/api/**").authenticated();
}
};
}
@Bean
public OAuth2ClientConfigurer clientConfigurer() {
return new OAuth2ClientConfigurerAdapter() {
@Override
public void configure(ClientRegistrationRepository clientRegistrations) throws Exception {
clientRegistrations.register(ClientRegistration.withRegistrationId("client")
.clientId("client-id")
.clientSecret("{noop}client-secret")
.authorizationUri("http://localhost:8080/oauth2/authorize")
.tokenUri("http://localhost:8080/oauth2/token")
.userInfoUri("http://localhost:8080/userinfo")
.userNameAttributeName(IdTokenClaimNames.SUB)
.jwkSetUri("http://localhost:8080/oauth2/jwks")
.clientName("Client")
.scope("read")
.authorizationGrantType(AuthorizationGrantType.AUTHORIZATION_CODE)
.redirectUri("http://localhost:8080/callback")
.build());
}
};
}
}
接下来,你需要配置Activiti以使用OAuth2进行认证。
你可以使用Spring Security的过滤器链来实现这一点。
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.oauth2.server.resource.authentication.JwtAuthenticationConverter;
import org.springframework.security.oauth2.server.resource.authentication.OAuth2AuthenticationConverter;
@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests()
.antMatchers("/activiti/**").authenticated()
.and()
.oauth2Login();
}
@Bean
public JwtAuthenticationConverter jwtAuthenticationConverter() {
JwtAuthenticationConverter converter = new JwtAuthenticationConverter();
// 配置JWT解析逻辑
return converter;
}
}
在Activiti的配置文件中,添加OAuth2认证过滤器链。
<bean id="authenticationFilter" class="org.springframework.security.oauth2.server.resource.web.authentication.OAuth2AuthenticationProcessingFilter">
<property name="authenticationManager" ref="authenticationManager"/>
</bean>
<http auto-config="true" use-expressions="true">
<intercept-url pattern="/activiti/**" access="isAuthenticated()" />
<form-login login-page="/login" />
<logout />
</http>
<authentication-manager id="authenticationManager">
<authentication-provider ref="oauth2AuthenticationProvider"/>
</authentication-manager>
<authentication-provider id="oauth2AuthenticationProvider">
<authentication-converter ref="jwtAuthenticationConverter"/>
</authentication-provider>
现在,你可以测试Activiti与OAuth2的集成。启动你的OAuth2服务器和Activiti应用,然后尝试访问受保护的资源。
通过以上步骤,你已经成功地将Activiti与OAuth2集成,实现了安全的访问控制和认证。你可以根据需要进一步定制和扩展这个集成。
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