Check there is only one ResourceServerConfiguration before modifying

Fixes gh-8347

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/resource/OAuth2ResourceServerConfiguration.java

@@ -29,6 +29,8 @@ 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.bind.RelaxedPropertyResolver;
+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;
@@ -84,8 +86,7 @@ public class OAuth2ResourceServerConfiguration {
 		return new ResourceServerFilterChainOrderProcessor(properties);
 	}
 
-	protected static class ResourceSecurityConfigurer
+	protected static class ResourceSecurityConfigurer extends ResourceServerConfigurerAdapter {
-			extends ResourceServerConfigurerAdapter {
 
 		private ResourceServerProperties resource;
 
@@ -94,8 +95,7 @@ public class OAuth2ResourceServerConfiguration {
 		}
 
 		@Override
-		public void configure(ResourceServerSecurityConfigurer resources)
+		public void configure(ResourceServerSecurityConfigurer resources) throws Exception {
-				throws Exception {
 			resources.resourceId(this.resource.getResourceId());
 		}
 
@@ -107,39 +107,42 @@ public class OAuth2ResourceServerConfiguration {
 	}
 
 	private static final class ResourceServerFilterChainOrderProcessor
-			implements BeanPostProcessor {
+			implements BeanPostProcessor, ApplicationContextAware {
 
 		private final ResourceServerProperties properties;
+		private ApplicationContext context;
 
-		private ResourceServerFilterChainOrderProcessor(
+		private ResourceServerFilterChainOrderProcessor(ResourceServerProperties properties) {
-				ResourceServerProperties properties) {
 			this.properties = properties;
 		}
 
 		@Override
-		public Object postProcessBeforeInitialization(Object bean, String beanName)
+		public void setApplicationContext(ApplicationContext context) throws BeansException {
-				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)
+		public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
-				throws BeansException {
 			if (bean instanceof ResourceServerConfiguration) {
-				ResourceServerConfiguration config = (ResourceServerConfiguration) bean;
+				if (this.context.getBeanNamesForType(ResourceServerConfiguration.class, false, false).length == 1) {
-				config.setOrder(this.properties.getFilterOrder());
+					ResourceServerConfiguration config = (ResourceServerConfiguration) bean;
+					config.setOrder(this.properties.getFilterOrder());
+				}
 			}
 			return bean;
 		}
 
 	}
 
-	protected static class ResourceServerCondition extends SpringBootCondition
+	protected static class ResourceServerCondition extends SpringBootCondition implements ConfigurationCondition {
-			implements ConfigurationCondition {
 
 		private static final String AUTHORIZATION_ANNOTATION = "org.springframework."
-				+ "security.oauth2.config.annotation.web.configuration."
+				+ "security.oauth2.config.annotation.web.configuration." + "AuthorizationServerEndpointsConfiguration";
-				+ "AuthorizationServerEndpointsConfiguration";
 
 		@Override
 		public ConfigurationPhase getConfigurationPhase() {
@@ -147,43 +150,37 @@ public class OAuth2ResourceServerConfiguration {
 		}
 
 		@Override
-		public ConditionOutcome getMatchOutcome(ConditionContext context,
+		public ConditionOutcome getMatchOutcome(ConditionContext context, AnnotatedTypeMetadata metadata) {
-				AnnotatedTypeMetadata metadata) {
+			ConditionMessage.Builder message = ConditionMessage.forCondition("OAuth ResourceServer Condition");
-			ConditionMessage.Builder message = ConditionMessage
-					.forCondition("OAuth ResourceServer Condition");
 			Environment environment = context.getEnvironment();
-			RelaxedPropertyResolver resolver = new RelaxedPropertyResolver(environment,
+			RelaxedPropertyResolver resolver = new RelaxedPropertyResolver(environment, "security.oauth2.resource.");
-					"security.oauth2.resource.");
 			if (hasOAuthClientId(environment)) {
 				return ConditionOutcome.match(message.foundExactly("client-id property"));
 			}
 			if (!resolver.getSubProperties("jwt").isEmpty()) {
-				return ConditionOutcome
+				return ConditionOutcome.match(message.foundExactly("JWT resource configuration"));
-						.match(message.foundExactly("JWT resource configuration"));
 			}
 			if (!resolver.getSubProperties("jwk").isEmpty()) {
 				return ConditionOutcome
 						.match(message.foundExactly("JWK resource configuration"));
 			}
 			if (StringUtils.hasText(resolver.getProperty("user-info-uri"))) {
-				return ConditionOutcome
+				return ConditionOutcome.match(message.foundExactly("user-info-uri property"));
-						.match(message.foundExactly("user-info-uri property"));
+			}
+			if (StringUtils.hasText(resolver.getProperty("token-info-uri"))) {
+				return ConditionOutcome.match(message.foundExactly("token-info-uri property"));
 			}
 			if (ClassUtils.isPresent(AUTHORIZATION_ANNOTATION, null)) {
-				if (AuthorizationServerEndpointsConfigurationBeanCondition
+				if (AuthorizationServerEndpointsConfigurationBeanCondition.matches(context)) {
-						.matches(context)) {
+					return ConditionOutcome.match(message.found("class").items(AUTHORIZATION_ANNOTATION));
-					return ConditionOutcome.match(
-							message.found("class").items(AUTHORIZATION_ANNOTATION));
 				}
 			}
-			return ConditionOutcome.noMatch(
+			return ConditionOutcome
-					message.didNotFind("client id, JWT resource or authorization server")
+					.noMatch(message.didNotFind("client id, JWT resource or authorization server").atAll());
-							.atAll());
 		}
 
 		private boolean hasOAuthClientId(Environment environment) {
-			RelaxedPropertyResolver resolver = new RelaxedPropertyResolver(environment,
+			RelaxedPropertyResolver resolver = new RelaxedPropertyResolver(environment, "security.oauth2.client.");
-					"security.oauth2.client.");
 			return StringUtils.hasLength(resolver.getProperty("client-id", ""));
 		}
 
@@ -194,8 +191,7 @@ public class OAuth2ResourceServerConfiguration {
 
 		public static boolean matches(ConditionContext context) {
 			Class<AuthorizationServerEndpointsConfigurationBeanCondition> type = AuthorizationServerEndpointsConfigurationBeanCondition.class;
-			Conditional conditional = AnnotationUtils.findAnnotation(type,
+			Conditional conditional = AnnotationUtils.findAnnotation(type, Conditional.class);
-					Conditional.class);
 			StandardAnnotationMetadata metadata = new StandardAnnotationMetadata(type);
 			for (Class<? extends Condition> conditionType : conditional.value()) {
 				Condition condition = BeanUtils.instantiateClass(conditionType);

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/resource/ResourceServerTokenServicesConfiguration.java

@@ -334,7 +334,7 @@ public class ResourceServerTokenServicesConfiguration {
 			}
 			String tokenInfoUri = resolver.getProperty("token-info-uri");
 			String userInfoUri = resolver.getProperty("user-info-uri");
-			if (!StringUtils.hasLength(userInfoUri)) {
+			if (!StringUtils.hasLength(userInfoUri) && !StringUtils.hasLength(tokenInfoUri)) {
 				return ConditionOutcome
 						.match(message.didNotFind("user-info-uri property").atAll());
 			}

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/security/oauth2/resource/MultipleResourceServerConfigurationTests.java

@@ -0,0 +1,119 @@
+/*
+ * 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.List;
+
+import org.junit.After;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+import org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration;
+import org.springframework.boot.autoconfigure.security.oauth2.OAuth2AutoConfiguration;
+import org.springframework.boot.autoconfigure.security.oauth2.OAuth2ClientProperties;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.boot.context.embedded.EmbeddedServletContainerFactory;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.boot.test.util.EnvironmentTestUtils;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Import;
+import org.springframework.core.env.ConfigurableEnvironment;
+import org.springframework.core.env.StandardEnvironment;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+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.provider.token.RemoteTokenServices;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+
+/**
+ * @author Dave Syer
+ *
+ */
+public class MultipleResourceServerConfigurationTests {
+
+	private ConfigurableApplicationContext context;
+
+	private ConfigurableEnvironment environment = new StandardEnvironment();
+
+	@Rule
+	public ExpectedException thrown = ExpectedException.none();
+
+	@After
+	public void close() {
+		if (this.context != null) {
+			this.context.close();
+		}
+	}
+
+	@Test
+	public void doubleResourceServerConfiguration() {
+		EnvironmentTestUtils.addEnvironment(this.environment, "debug=true",
+				"security.oauth2.resource.tokenInfoUri:http://example.com", "security.oauth2.client.clientId=acme");
+		this.context = new SpringApplicationBuilder(DoubleResourceConfiguration.class, MockServletConfiguration.class)
+				.environment(this.environment).run();
+		RemoteTokenServices services = this.context.getBean(RemoteTokenServices.class);
+		assertThat(services).isNotNull();
+	}
+
+	@Configuration
+	@Import({ OAuth2AutoConfiguration.class, PropertyPlaceholderAutoConfiguration.class })
+	@EnableConfigurationProperties(OAuth2ClientProperties.class)
+	@EnableWebSecurity
+	protected static class MockServletConfiguration {
+		@Bean
+		public EmbeddedServletContainerFactory embeddedServletContainerFactory() {
+			return mock(EmbeddedServletContainerFactory.class);
+		}
+	}
+
+	@Configuration
+	protected static class DoubleResourceConfiguration {
+
+		@Bean
+		protected ResourceServerConfiguration adminResources() {
+
+			ResourceServerConfiguration resource = new ResourceServerConfiguration() {
+				// Switch off the Spring Boot @Autowired configurers
+				public void setConfigurers(List<ResourceServerConfigurer> configurers) {
+					super.setConfigurers(configurers);
+				}
+			};
+			resource.setOrder(3);
+			return resource;
+		}
+
+		@Bean
+		protected ResourceServerConfiguration otherResources() {
+
+			ResourceServerConfiguration resource = new ResourceServerConfiguration() {
+				// Switch off the Spring Boot @Autowired configurers
+				public void setConfigurers(List<ResourceServerConfigurer> configurers) {
+					super.setConfigurers(configurers);
+				}
+			};
+			resource.setOrder(4);
+			return resource;
+		}
+
+	}
+
+}