響應式 X.509 認證

類似於 Servlet X.509 認證，響應式 X.509 認證過濾器允許從客戶端提供的證書中提取認證令牌。

以下示例展示了響應式 X.509 安全配置

Java
Kotlin

@Bean
public SecurityWebFilterChain securityWebFilterChain(ServerHttpSecurity http) {
	http
		.x509(withDefaults())
		.authorizeExchange(exchanges -> exchanges
		    .anyExchange().permitAll()
		);
	return http.build();
}

@Bean
fun securityWebFilterChain(http: ServerHttpSecurity): SecurityWebFilterChain {
    return http {
        x509 { }
        authorizeExchange {
            authorize(anyExchange, authenticated)
        }
    }
}

在上述配置中，如果既未提供 principalExtractor 也未提供 authenticationManager，則會使用預設值。預設的主體提取器是 SubjectDnX509PrincipalExtractor，它從客戶端提供的證書中提取 CN（通用名稱）欄位。預設的認證管理器是 ReactivePreAuthenticatedAuthenticationManager，它執行使用者賬戶驗證，檢查由 principalExtractor 提取名稱的使用者賬戶是否存在，並且未被鎖定、停用或過期。

以下示例演示瞭如何覆蓋這些預設值

Java
Kotlin

@Bean
public SecurityWebFilterChain securityWebFilterChain(ServerHttpSecurity http) {
	SubjectDnX509PrincipalExtractor principalExtractor =
	        new SubjectDnX509PrincipalExtractor();

	principalExtractor.setSubjectDnRegex("OU=(.*?)(?:,|$)");

	ReactiveAuthenticationManager authenticationManager = authentication -> {
		authentication.setAuthenticated("Trusted Org Unit".equals(authentication.getName()));
		return Mono.just(authentication);
	};

	http
		.x509(x509 -> x509
		    .principalExtractor(principalExtractor)
		    .authenticationManager(authenticationManager)
		)
		.authorizeExchange(exchanges -> exchanges
		    .anyExchange().authenticated()
		);
	return http.build();
}

@Bean
fun securityWebFilterChain(http: ServerHttpSecurity): SecurityWebFilterChain? {
    val customPrincipalExtractor = SubjectDnX509PrincipalExtractor()
    customPrincipalExtractor.setSubjectDnRegex("OU=(.*?)(?:,|$)")
    val customAuthenticationManager = ReactiveAuthenticationManager { authentication: Authentication ->
        authentication.isAuthenticated = "Trusted Org Unit" == authentication.name
        Mono.just(authentication)
    }
    return http {
        x509 {
            principalExtractor = customPrincipalExtractor
            authenticationManager = customAuthenticationManager
        }
        authorizeExchange {
            authorize(anyExchange, authenticated)
        }
    }
}

在上一個示例中，使用者名稱是從客戶端證書的 OU 欄位而不是 CN 中提取的，並且根本不執行使用 ReactiveUserDetailsService 的賬戶查詢。相反，如果提供的證書頒發給了名為“Trusted Org Unit”的 OU，則請求會被認證。

有關配置 Netty 和 WebClient 或 curl 命令列工具以使用雙向 TLS 並啟用 X.509 認證的示例，請參閱 github.com/spring-projects/spring-security-samples/tree/main/servlet/java-configuration/authentication/x509。