使Spring引导执行器知道X-Forwarded-Prefix标头?

gdrx4gfi  于 2022-09-19  发布在  Spring
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我们使用的是Spring Boot 2.7.0和spring-boot-starter-actuator,我们在端口8081上/management上下文路径下公开。代理设置多个X-Forwarded-*头,包括设置为/serviceX-Forwarded-Prefix头。但当导航到https://www.company.com/management时,返回的是:

{
    "_links": {
        "self": {
            "href": "https://www.company.com/management",
            "templated": false
        },
        "beans": {
            "href": "https://www.company.com/management/beans",
            "templated": false
        },
        "caches-cache": {
            "href": "https://www.company.com/management/caches/{cache}",
            "templated": true
        },
        "caches": {
            "href": "https://www.company.com/management/caches",
            "templated": false
        },
        "health": {
            "href": "https://www.company.com/management/health",
            "templated": false
        },
        "health-path": {
            "href": "https://www.company.com/management/health/{*path}",
            "templated": true
        },
        "info": {
            "href": "https://www.company.com/management/info",
            "templated": false
        },
        "conditions": {
            "href": "https://www.company.com/management/conditions",
            "templated": false
        },
        "configprops": {
            "href": "https://www.company.com/management/configprops",
            "templated": false
        },
        "configprops-prefix": {
            "href": "https://www.company.com/management/configprops/{prefix}",
            "templated": true
        },
        "env": {
            "href": "https://www.company.com/management/env",
            "templated": false
        },
        "env-toMatch": {
            "href": "https://www.company.com/management/env/{toMatch}",
            "templated": true
        },
        "integrationgraph": {
            "href": "https://www.company.com/management/integrationgraph",
            "templated": false
        },
        "loggers": {
            "href": "https://www.company.com/management/loggers",
            "templated": false
        },
        "loggers-name": {
            "href": "https://www.company.com/management/loggers/{name}",
            "templated": true
        },
        "heapdump": {
            "href": "https://www.company.com/management/heapdump",
            "templated": false
        },
        "threaddump": {
            "href": "https://www.company.com/management/threaddump",
            "templated": false
        },
        "metrics-requiredMetricName": {
            "href": "https://www.company.com/management/metrics/{requiredMetricName}",
            "templated": true
        },
        "metrics": {
            "href": "https://www.company.com/management/metrics",
            "templated": false
        },
        "scheduledtasks": {
            "href": "https://www.company.com/management/scheduledtasks",
            "templated": false
        },
        "sessions-sessionId": {
            "href": "https://www.company.com/management/sessions/{sessionId}",
            "templated": true
        },
        "sessions": {
            "href": "https://www.company.com/management/sessions",
            "templated": false
        },
        "mappings": {
            "href": "https://www.company.com/management/mappings",
            "templated": false
        },
        "refresh": {
            "href": "https://www.company.com/management/refresh",
            "templated": false
        },
        "features": {
            "href": "https://www.company.com/management/features",
            "templated": false
        },
        "traces": {
            "href": "https://www.company.com/management/traces",
            "templated": false
        }
    }
}

由于提供的X-Forwarded-Prefix头,我希望响应中的href以https://www.company.com/service开头,但事实并非如此。我尝试添加ForwardedHeaderFilter,如下所示:

@Bean
public FilterRegistrationBean<ForwardedHeaderFilter> forwardedHeaderFilterFilterRegistrationBean() {
    ForwardedHeaderFilter forwardedHeaderFilter = new ForwardedHeaderFilter();
    FilterRegistrationBean<ForwardedHeaderFilter> bean = new FilterRegistrationBean<>(forwardedHeaderFilter);
    bean.setOrder(Ordered.HIGHEST_PRECEDENCE);
    return bean;
}

但这没有什么区别。
在生成到代理后面端点的链接时,如何使执行器将X-Forwarded-Prefix头考虑在内?

bvjxkvbb

bvjxkvbb1#

我有同样的问题。我发现如果管理端口不同,ManagementContextAutoConfiguration使用单独的WebApplicationContext。这就是为什么声明ForwardedHeaderFilter无效的原因。Spring执行器可能有问题。我做了这个黑客,它似乎在工作。但我希望有人能找到更好的解决办法。

@Component
@ConditionalOnManagementPort(ManagementPortType.DIFFERENT)
public class ManagementContextFactoryBeanPostProcessor
        implements BeanPostProcessor {

    @Override
    public Object postProcessBeforeInitialization(Object bean, String beanName)
            throws BeansException {
        if (bean instanceof ManagementContextFactory managementContextFactory) {
            return (ManagementContextFactory) (parent, configurationClasses) -> {
                var context = managementContextFactory.createManagementContext(parent, configurationClasses);
                if (context instanceof GenericWebApplicationContext genericWebApplicationContext) {
                    genericWebApplicationContext.registerBean(ForwardedHeaderFilterRegistrationBean.class);
                }
                return context;
            };
        }
        return BeanPostProcessor.super.postProcessBeforeInitialization(bean, beanName);
    }

    public static class ForwardedHeaderFilterRegistrationBean
            extends FilterRegistrationBean<ForwardedHeaderFilter> {

        public ForwardedHeaderFilterRegistrationBean() {
            setFilter(new ForwardedHeaderFilter());
            setOrder(Ordered.HIGHEST_PRECEDENCE);
        }

    }

}

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