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org.springframework.boot.actuate.autoconfigure.cloudfoundry.servlet.CloudFoundryActuatorAutoConfiguration Maven / Gradle / Ivy
/*
* Copyright 2012-2024 the original author or authors.
*
* Licensed 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
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* 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 org.springframework.boot.actuate.autoconfigure.cloudfoundry.servlet;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.boot.actuate.autoconfigure.cloudfoundry.CloudFoundryWebEndpointDiscoverer;
import org.springframework.boot.actuate.autoconfigure.endpoint.condition.ConditionalOnAvailableEndpoint;
import org.springframework.boot.actuate.autoconfigure.health.HealthEndpointAutoConfiguration;
import org.springframework.boot.actuate.autoconfigure.info.InfoEndpointAutoConfiguration;
import org.springframework.boot.actuate.autoconfigure.web.servlet.ServletManagementContextAutoConfiguration;
import org.springframework.boot.actuate.endpoint.ExposableEndpoint;
import org.springframework.boot.actuate.endpoint.invoke.ParameterValueMapper;
import org.springframework.boot.actuate.endpoint.web.EndpointMapping;
import org.springframework.boot.actuate.endpoint.web.EndpointMediaTypes;
import org.springframework.boot.actuate.endpoint.web.ExposableWebEndpoint;
import org.springframework.boot.actuate.endpoint.web.PathMappedEndpoints;
import org.springframework.boot.actuate.health.HealthEndpoint;
import org.springframework.boot.actuate.health.HealthEndpointWebExtension;
import org.springframework.boot.actuate.info.GitInfoContributor;
import org.springframework.boot.actuate.info.InfoContributor;
import org.springframework.boot.actuate.info.InfoEndpoint;
import org.springframework.boot.actuate.info.InfoPropertiesInfoContributor;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnCloudPlatform;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.autoconfigure.security.SecurityProperties;
import org.springframework.boot.cloud.CloudPlatform;
import org.springframework.boot.info.GitProperties;
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.Order;
import org.springframework.core.env.Environment;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.security.config.annotation.web.WebSecurityConfigurer;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityCustomizer;
import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
import org.springframework.security.web.util.matcher.OrRequestMatcher;
import org.springframework.security.web.util.matcher.RequestMatcher;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.servlet.DispatcherServlet;
/**
* {@link EnableAutoConfiguration Auto-configuration} to expose actuator endpoints for
* Cloud Foundry to use.
*
* @author Madhura Bhave
* @since 2.0.0
*/
@AutoConfiguration(after = { ServletManagementContextAutoConfiguration.class, HealthEndpointAutoConfiguration.class,
InfoEndpointAutoConfiguration.class })
@ConditionalOnProperty(prefix = "management.cloudfoundry", name = "enabled", matchIfMissing = true)
@ConditionalOnWebApplication(type = ConditionalOnWebApplication.Type.SERVLET)
@ConditionalOnClass(DispatcherServlet.class)
@ConditionalOnBean(DispatcherServlet.class)
@ConditionalOnCloudPlatform(CloudPlatform.CLOUD_FOUNDRY)
public class CloudFoundryActuatorAutoConfiguration {
private static final String BASE_PATH = "/cloudfoundryapplication";
@Bean
@ConditionalOnMissingBean
@ConditionalOnAvailableEndpoint
@ConditionalOnBean({ HealthEndpoint.class, HealthEndpointWebExtension.class })
public CloudFoundryHealthEndpointWebExtension cloudFoundryHealthEndpointWebExtension(
HealthEndpointWebExtension healthEndpointWebExtension) {
return new CloudFoundryHealthEndpointWebExtension(healthEndpointWebExtension);
}
@Bean
@ConditionalOnMissingBean
@ConditionalOnAvailableEndpoint
@ConditionalOnBean({ InfoEndpoint.class, GitProperties.class })
public CloudFoundryInfoEndpointWebExtension cloudFoundryInfoEndpointWebExtension(GitProperties properties,
ObjectProvider infoContributors) {
List contributors = infoContributors.orderedStream()
.map((infoContributor) -> (infoContributor instanceof GitInfoContributor)
? new GitInfoContributor(properties, InfoPropertiesInfoContributor.Mode.FULL) : infoContributor)
.toList();
return new CloudFoundryInfoEndpointWebExtension(new InfoEndpoint(contributors));
}
@Bean
@SuppressWarnings("removal")
public CloudFoundryWebEndpointServletHandlerMapping cloudFoundryWebEndpointServletHandlerMapping(
ParameterValueMapper parameterMapper, EndpointMediaTypes endpointMediaTypes,
RestTemplateBuilder restTemplateBuilder,
org.springframework.boot.actuate.endpoint.web.annotation.ServletEndpointsSupplier servletEndpointsSupplier,
org.springframework.boot.actuate.endpoint.web.annotation.ControllerEndpointsSupplier controllerEndpointsSupplier,
ApplicationContext applicationContext) {
CloudFoundryWebEndpointDiscoverer discoverer = new CloudFoundryWebEndpointDiscoverer(applicationContext,
parameterMapper, endpointMediaTypes, null, Collections.emptyList(), Collections.emptyList());
CloudFoundrySecurityInterceptor securityInterceptor = getSecurityInterceptor(restTemplateBuilder,
applicationContext.getEnvironment());
Collection webEndpoints = discoverer.getEndpoints();
List> allEndpoints = new ArrayList<>();
allEndpoints.addAll(webEndpoints);
allEndpoints.addAll(servletEndpointsSupplier.getEndpoints());
allEndpoints.addAll(controllerEndpointsSupplier.getEndpoints());
return new CloudFoundryWebEndpointServletHandlerMapping(new EndpointMapping(BASE_PATH), webEndpoints,
endpointMediaTypes, getCorsConfiguration(), securityInterceptor, allEndpoints);
}
private CloudFoundrySecurityInterceptor getSecurityInterceptor(RestTemplateBuilder restTemplateBuilder,
Environment environment) {
CloudFoundrySecurityService cloudfoundrySecurityService = getCloudFoundrySecurityService(restTemplateBuilder,
environment);
TokenValidator tokenValidator = new TokenValidator(cloudfoundrySecurityService);
return new CloudFoundrySecurityInterceptor(tokenValidator, cloudfoundrySecurityService,
environment.getProperty("vcap.application.application_id"));
}
private CloudFoundrySecurityService getCloudFoundrySecurityService(RestTemplateBuilder restTemplateBuilder,
Environment environment) {
String cloudControllerUrl = environment.getProperty("vcap.application.cf_api");
boolean skipSslValidation = environment.getProperty("management.cloudfoundry.skip-ssl-validation",
Boolean.class, false);
return (cloudControllerUrl != null)
? new CloudFoundrySecurityService(restTemplateBuilder, cloudControllerUrl, skipSslValidation) : null;
}
private CorsConfiguration getCorsConfiguration() {
CorsConfiguration corsConfiguration = new CorsConfiguration();
corsConfiguration.addAllowedOrigin(CorsConfiguration.ALL);
corsConfiguration.setAllowedMethods(Arrays.asList(HttpMethod.GET.name(), HttpMethod.POST.name()));
corsConfiguration
.setAllowedHeaders(Arrays.asList(HttpHeaders.AUTHORIZATION, "X-Cf-App-Instance", HttpHeaders.CONTENT_TYPE));
return corsConfiguration;
}
/**
* {@link WebSecurityConfigurer} to tell Spring Security to ignore cloudfoundry
* specific paths. The Cloud foundry endpoints are protected by their own security
* interceptor.
*/
@ConditionalOnClass({ WebSecurityCustomizer.class, WebSecurity.class })
@Configuration(proxyBeanMethods = false)
public static class IgnoredCloudFoundryPathsWebSecurityConfiguration {
@Bean
IgnoredCloudFoundryPathsWebSecurityCustomizer ignoreCloudFoundryPathsWebSecurityCustomizer(
CloudFoundryWebEndpointServletHandlerMapping handlerMapping) {
return new IgnoredCloudFoundryPathsWebSecurityCustomizer(handlerMapping);
}
}
@Order(SecurityProperties.IGNORED_ORDER)
static class IgnoredCloudFoundryPathsWebSecurityCustomizer implements WebSecurityCustomizer {
private final PathMappedEndpoints pathMappedEndpoints;
IgnoredCloudFoundryPathsWebSecurityCustomizer(CloudFoundryWebEndpointServletHandlerMapping handlerMapping) {
this.pathMappedEndpoints = new PathMappedEndpoints(BASE_PATH, handlerMapping::getAllEndpoints);
}
@Override
public void customize(WebSecurity web) {
List requestMatchers = new ArrayList<>();
this.pathMappedEndpoints.getAllPaths()
.forEach((path) -> requestMatchers.add(new AntPathRequestMatcher(path + "/**")));
requestMatchers.add(new AntPathRequestMatcher(BASE_PATH));
requestMatchers.add(new AntPathRequestMatcher(BASE_PATH + "/"));
web.ignoring().requestMatchers(new OrRequestMatcher(requestMatchers));
}
}
}