/*
* Copyright 2012-2017 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
*
* http://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.autoconfigure.security.oauth2.resource;
import java.util.Map;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.boot.autoconfigure.condition.ConditionMessage;
import org.springframework.boot.autoconfigure.condition.ConditionOutcome;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.autoconfigure.condition.SpringBootCondition;
import org.springframework.boot.autoconfigure.security.SecurityProperties;
import org.springframework.boot.autoconfigure.security.oauth2.resource.OAuth2ResourceServerConfiguration.ResourceServerCondition;
import org.springframework.boot.context.properties.bind.Bindable;
import org.springframework.boot.context.properties.bind.Binder;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Condition;
import org.springframework.context.annotation.ConditionContext;
import org.springframework.context.annotation.Conditional;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ConfigurationCondition;
import org.springframework.context.annotation.Import;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.Environment;
import org.springframework.core.type.AnnotatedTypeMetadata;
import org.springframework.core.type.StandardAnnotationMetadata;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerEndpointsConfiguration;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfiguration;
import org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configurers.ResourceServerSecurityConfigurer;
import org.springframework.util.ClassUtils;
import org.springframework.util.StringUtils;
/**
* Auto-configure a Spring Security OAuth2 resource server. Back off if another
* {@link ResourceServerConfigurer} already exists or if resource server not enabled.
*
* @author Greg Turnquist
* @author Dave Syer
* @author Madhura Bhave
* @since 1.3.0
*/
@Configuration
@Conditional(ResourceServerCondition.class)
@ConditionalOnClass({ EnableResourceServer.class, SecurityProperties.class })
@ConditionalOnWebApplication
@ConditionalOnBean(ResourceServerConfiguration.class)
@Import(ResourceServerTokenServicesConfiguration.class)
public class OAuth2ResourceServerConfiguration {
private final ResourceServerProperties resource;
public OAuth2ResourceServerConfiguration(ResourceServerProperties resource) {
this.resource = resource;
}
@Bean
@ConditionalOnMissingBean(ResourceServerConfigurer.class)
public ResourceServerConfigurer resourceServer() {
return new ResourceSecurityConfigurer(this.resource);
}
@Bean
public static ResourceServerFilterChainOrderProcessor resourceServerFilterChainOrderProcessor(
ResourceServerProperties properties) {
return new ResourceServerFilterChainOrderProcessor(properties);
}
protected static class ResourceSecurityConfigurer
extends ResourceServerConfigurerAdapter {
private ResourceServerProperties resource;
public ResourceSecurityConfigurer(ResourceServerProperties resource) {
this.resource = resource;
}
@Override
public void configure(ResourceServerSecurityConfigurer resources)
throws Exception {
resources.resourceId(this.resource.getResourceId());
}
@Override
public void configure(HttpSecurity http) throws Exception {
http.authorizeRequests().anyRequest().authenticated();
}
}
private static final class ResourceServerFilterChainOrderProcessor
implements BeanPostProcessor, ApplicationContextAware {
private final ResourceServerProperties properties;
private ApplicationContext context;
private ResourceServerFilterChainOrderProcessor(
ResourceServerProperties properties) {
this.properties = properties;
}
@Override
public void setApplicationContext(ApplicationContext context)
throws BeansException {
this.context = context;
}
@Override
public Object postProcessBeforeInitialization(Object bean, String beanName)
throws BeansException {
return bean;
}
@Override
public Object postProcessAfterInitialization(Object bean, String beanName)
throws BeansException {
if (bean instanceof ResourceServerConfiguration) {
if (this.context.getBeanNamesForType(ResourceServerConfiguration.class,
false, false).length == 1) {
ResourceServerConfiguration config = (ResourceServerConfiguration) bean;
config.setOrder(this.properties.getFilterOrder());
}
}
return bean;
}
}
protected static class ResourceServerCondition extends SpringBootCondition
implements ConfigurationCondition {
private static final Bindable<Map<String, Object>> STRING_OBJECT_MAP = Bindable
.mapOf(String.class, Object.class);
private static final String AUTHORIZATION_ANNOTATION = "org.springframework."
+ "security.oauth2.config.annotation.web.configuration."
+ "AuthorizationServerEndpointsConfiguration";
@Override
public ConfigurationPhase getConfigurationPhase() {
return ConfigurationPhase.REGISTER_BEAN;
}
@Override
public ConditionOutcome getMatchOutcome(ConditionContext context,
AnnotatedTypeMetadata metadata) {
ConditionMessage.Builder message = ConditionMessage
.forCondition("OAuth ResourceServer Condition");
Environment environment = context.getEnvironment();
if (!(environment instanceof ConfigurableEnvironment)) {
return ConditionOutcome
.noMatch(message.didNotFind("A ConfigurableEnvironment").atAll());
}
if (hasOAuthClientId(environment)) {
return ConditionOutcome.match(message.foundExactly("client-id property"));
}
Binder binder = Binder.get(environment);
String prefix = "security.oauth2.resource.";
if (binder.bind(prefix + "jwt", STRING_OBJECT_MAP).isBound()) {
return ConditionOutcome
.match(message.foundExactly("JWT resource configuration"));
}
if (binder.bind(prefix + "jwk", STRING_OBJECT_MAP).isBound()) {
return ConditionOutcome
.match(message.foundExactly("JWK resource configuration"));
}
if (StringUtils.hasText(environment.getProperty(prefix + "user-info-uri"))) {
return ConditionOutcome
.match(message.foundExactly("user-info-uri property"));
}
if (StringUtils.hasText(environment.getProperty(prefix + "token-info-uri"))) {
return ConditionOutcome
.match(message.foundExactly("token-info-uri property"));
}
if (ClassUtils.isPresent(AUTHORIZATION_ANNOTATION, null)) {
if (AuthorizationServerEndpointsConfigurationBeanCondition
.matches(context)) {
return ConditionOutcome.match(
message.found("class").items(AUTHORIZATION_ANNOTATION));
}
}
return ConditionOutcome.noMatch(
message.didNotFind("client ID, JWT resource or authorization server")
.atAll());
}
private boolean hasOAuthClientId(Environment environment) {
return StringUtils.hasLength(
environment.getProperty("security.oauth2.client.client-id"));
}
}
@ConditionalOnBean(AuthorizationServerEndpointsConfiguration.class)
private static class AuthorizationServerEndpointsConfigurationBeanCondition {
public static boolean matches(ConditionContext context) {
Class<AuthorizationServerEndpointsConfigurationBeanCondition> type = AuthorizationServerEndpointsConfigurationBeanCondition.class;
Conditional conditional = AnnotationUtils.findAnnotation(type,
Conditional.class);
StandardAnnotationMetadata metadata = new StandardAnnotationMetadata(type);
for (Class<? extends Condition> conditionType : conditional.value()) {
Condition condition = BeanUtils.instantiateClass(conditionType);
if (condition.matches(context, metadata)) {
return true;
}
}
return false;
}
}
}