Allow custom override of user info OAuth2RestTemplate

Closes gh-5996

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

@@ -0,0 +1,95 @@
+/*
+ * 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.springframework.beans.factory.ObjectProvider;
+import org.springframework.boot.autoconfigure.security.oauth2.resource.ResourceServerTokenServicesConfiguration.AcceptJsonRequestEnhancer;
+import org.springframework.boot.autoconfigure.security.oauth2.resource.ResourceServerTokenServicesConfiguration.AcceptJsonRequestInterceptor;
+import org.springframework.core.annotation.AnnotationAwareOrderComparator;
+import org.springframework.security.oauth2.client.OAuth2ClientContext;
+import org.springframework.security.oauth2.client.OAuth2RestTemplate;
+import org.springframework.security.oauth2.client.resource.OAuth2ProtectedResourceDetails;
+import org.springframework.security.oauth2.client.token.grant.code.AuthorizationCodeAccessTokenProvider;
+import org.springframework.security.oauth2.client.token.grant.code.AuthorizationCodeResourceDetails;
+import org.springframework.util.CollectionUtils;
+
+/**
+ * Factory used to create the {@link OAuth2RestTemplate} used for extracting user info
+ * during authentication if none is available.
+ *
+ * @author Dave Syer
+ * @author Stephane Nicoll
+ * @since 1.5.0
+ */
+public class DefaultUserInfoRestTemplateFactory implements UserInfoRestTemplateFactory {
+
+	private static final AuthorizationCodeResourceDetails DEFAULT_RESOURCE_DETAILS;
+
+	static {
+		AuthorizationCodeResourceDetails details = new AuthorizationCodeResourceDetails();
+		details.setClientId("<N/A>");
+		details.setUserAuthorizationUri("Not a URI because there is no client");
+		details.setAccessTokenUri("Not a URI because there is no client");
+		DEFAULT_RESOURCE_DETAILS = details;
+	}
+
+	private final List<UserInfoRestTemplateCustomizer> customizers;
+
+	private final OAuth2ProtectedResourceDetails details;
+
+	private final OAuth2ClientContext oauth2ClientContext;
+
+	private OAuth2RestTemplate oauth2RestTemplate;
+
+	public DefaultUserInfoRestTemplateFactory(
+			ObjectProvider<List<UserInfoRestTemplateCustomizer>> customizers,
+			ObjectProvider<OAuth2ProtectedResourceDetails> details,
+			ObjectProvider<OAuth2ClientContext> oauth2ClientContext) {
+		this.customizers = customizers.getIfAvailable();
+		this.details = details.getIfAvailable();
+		this.oauth2ClientContext = oauth2ClientContext.getIfAvailable();
+	}
+
+	public OAuth2RestTemplate getUserInfoRestTemplate() {
+		if (this.oauth2RestTemplate == null) {
+			this.oauth2RestTemplate = createOAuth2RestTemplate(
+					this.details == null ? DEFAULT_RESOURCE_DETAILS : this.details);
+			this.oauth2RestTemplate.getInterceptors().add(new AcceptJsonRequestInterceptor());
+			AuthorizationCodeAccessTokenProvider accessTokenProvider = new AuthorizationCodeAccessTokenProvider();
+			accessTokenProvider.setTokenRequestEnhancer(new AcceptJsonRequestEnhancer());
+			this.oauth2RestTemplate.setAccessTokenProvider(accessTokenProvider);
+			if (!CollectionUtils.isEmpty(this.customizers)) {
+				AnnotationAwareOrderComparator.sort(this.customizers);
+				for (UserInfoRestTemplateCustomizer customizer : this.customizers) {
+					customizer.customize(this.oauth2RestTemplate);
+				}
+			}
+		}
+		return this.oauth2RestTemplate;
+	}
+
+	private OAuth2RestTemplate createOAuth2RestTemplate(
+			OAuth2ProtectedResourceDetails details) {
+		if (this.oauth2ClientContext == null) {
+			return new OAuth2RestTemplate(details);
+		}
+		return new OAuth2RestTemplate(details, this.oauth2ClientContext);
+	}
+
+}

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2016 the original author or authors.
+ * 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.
@@ -88,7 +88,7 @@ public class ResourceServerTokenServicesConfiguration {
 			ObjectProvider<List<UserInfoRestTemplateCustomizer>> customizers,
 			ObjectProvider<OAuth2ProtectedResourceDetails> details,
 			ObjectProvider<OAuth2ClientContext> oauth2ClientContext) {
-		return new UserInfoRestTemplateFactory(customizers, details, oauth2ClientContext);
+		return new DefaultUserInfoRestTemplateFactory(customizers, details, oauth2ClientContext);
 	}
 
 	@Configuration

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2016 the original author or authors.
+ * 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.
@@ -16,80 +16,23 @@
 
 package org.springframework.boot.autoconfigure.security.oauth2.resource;
 
-import java.util.List;
-
-import org.springframework.beans.factory.ObjectProvider;
-import org.springframework.boot.autoconfigure.security.oauth2.resource.ResourceServerTokenServicesConfiguration.AcceptJsonRequestEnhancer;
-import org.springframework.boot.autoconfigure.security.oauth2.resource.ResourceServerTokenServicesConfiguration.AcceptJsonRequestInterceptor;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.core.annotation.AnnotationAwareOrderComparator;
-import org.springframework.security.oauth2.client.OAuth2ClientContext;
 import org.springframework.security.oauth2.client.OAuth2RestTemplate;
-import org.springframework.security.oauth2.client.resource.OAuth2ProtectedResourceDetails;
-import org.springframework.security.oauth2.client.token.grant.code.AuthorizationCodeAccessTokenProvider;
-import org.springframework.security.oauth2.client.token.grant.code.AuthorizationCodeResourceDetails;
-import org.springframework.util.CollectionUtils;
 
 /**
- * Factory used to create the rest template used for extracting user info during
- * authentication.
+ * Factory used to create the {@link OAuth2RestTemplate} used for extracting user info
+ * during authentication if none is available.
  *
  * @author Dave Syer
+ * @author Stephane Nicoll
  * @since 1.4.0
  */
-@Configuration
-public class UserInfoRestTemplateFactory {
-
-	private static final AuthorizationCodeResourceDetails DEFAULT_RESOURCE_DETAILS;
-
-	static {
-		AuthorizationCodeResourceDetails details = new AuthorizationCodeResourceDetails();
-		details.setClientId("<N/A>");
-		details.setUserAuthorizationUri("Not a URI because there is no client");
-		details.setAccessTokenUri("Not a URI because there is no client");
-		DEFAULT_RESOURCE_DETAILS = details;
-	}
-
-	private final List<UserInfoRestTemplateCustomizer> customizers;
-
-	private final OAuth2ProtectedResourceDetails details;
-
-	private final OAuth2ClientContext oauth2ClientContext;
-
-	private OAuth2RestTemplate template;
-
-	public UserInfoRestTemplateFactory(
-			ObjectProvider<List<UserInfoRestTemplateCustomizer>> customizers,
-			ObjectProvider<OAuth2ProtectedResourceDetails> details,
-			ObjectProvider<OAuth2ClientContext> oauth2ClientContext) {
-		this.customizers = customizers.getIfAvailable();
-		this.details = details.getIfAvailable();
-		this.oauth2ClientContext = oauth2ClientContext.getIfAvailable();
-	}
-
-	public OAuth2RestTemplate getUserInfoRestTemplate() {
-		if (this.template == null) {
-			this.template = getTemplate(
-					this.details == null ? DEFAULT_RESOURCE_DETAILS : this.details);
-			this.template.getInterceptors().add(new AcceptJsonRequestInterceptor());
-			AuthorizationCodeAccessTokenProvider accessTokenProvider = new AuthorizationCodeAccessTokenProvider();
-			accessTokenProvider.setTokenRequestEnhancer(new AcceptJsonRequestEnhancer());
-			this.template.setAccessTokenProvider(accessTokenProvider);
-			if (!CollectionUtils.isEmpty(this.customizers)) {
-				AnnotationAwareOrderComparator.sort(this.customizers);
-				for (UserInfoRestTemplateCustomizer customizer : this.customizers) {
-					customizer.customize(this.template);
-				}
-			}
-		}
-		return this.template;
-	}
-
-	private OAuth2RestTemplate getTemplate(OAuth2ProtectedResourceDetails details) {
-		if (this.oauth2ClientContext == null) {
-			return new OAuth2RestTemplate(details);
-		}
-		return new OAuth2RestTemplate(details, this.oauth2ClientContext);
-	}
+public interface UserInfoRestTemplateFactory {
+
+	/**
+	 * Return the {@link OAuth2RestTemplate} used for extracting user info during
+	 * authentication if none is available.
+	 * @return the OAuth2RestTemplate used for authentication
+	 */
+	OAuth2RestTemplate getUserInfoRestTemplate();
 
 }

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

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2016 the original author or authors.
+ * 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.
@@ -48,6 +48,7 @@ import org.springframework.http.client.ClientHttpResponse;
 import org.springframework.security.core.GrantedAuthority;
 import org.springframework.security.core.authority.AuthorityUtils;
 import org.springframework.security.oauth2.client.OAuth2RestTemplate;
+import org.springframework.security.oauth2.client.token.grant.code.AuthorizationCodeResourceDetails;
 import org.springframework.security.oauth2.provider.token.DefaultTokenServices;
 import org.springframework.security.oauth2.provider.token.RemoteTokenServices;
 import org.springframework.social.connect.ConnectionFactoryLocator;
@@ -213,6 +214,19 @@ public class ResourceServerTokenServicesConfigurationTests {
 		assertThat(services).isNotNull();
 	}
 
+	@Test
+	public void customUserInfoRestTemplateFactory() {
+		EnvironmentTestUtils.addEnvironment(this.environment,
+				"security.oauth2.resource.userInfoUri:http://example.com");
+		this.context = new SpringApplicationBuilder(
+				CustomUserInfoRestTemplateFactory.class, ResourceConfiguration.class)
+				.environment(this.environment).web(false).run();
+		assertThat(this.context.getBeansOfType(UserInfoRestTemplateFactory.class))
+				.hasSize(1);
+		assertThat(this.context.getBean(UserInfoRestTemplateFactory.class))
+				.isInstanceOf(CustomUserInfoRestTemplateFactory.class);
+	}
+
 	@Configuration
 	@Import({ ResourceServerTokenServicesConfiguration.class,
 			ResourceServerPropertiesConfiguration.class,
@@ -313,4 +327,18 @@ public class ResourceServerTokenServicesConfigurationTests {
 
 	}
 
+	@Component
+	protected static class CustomUserInfoRestTemplateFactory
+			implements UserInfoRestTemplateFactory {
+
+		private final OAuth2RestTemplate restTemplate =
+				new OAuth2RestTemplate(new AuthorizationCodeResourceDetails());
+
+		@Override
+		public OAuth2RestTemplate getUserInfoRestTemplate() {
+			return this.restTemplate;
+		}
+
+	}
+
 }

spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc

@@ -2555,14 +2555,15 @@ which suits most providers and matches the spec, but if you need to change it yo
 [[boot-features-security-custom-user-info]]
 === Customizing the User Info RestTemplate
 If you have a `user-info-uri`, the resource server features use an `OAuth2RestTemplate`
-internally to fetch user details for authentication. This is provided as a qualified
-`@Bean` with id `userInfoRestTemplate`, but you shouldn't need to know that to just
-use it. The default should be fine for most providers, but occasionally you might need to
-add additional interceptors, or change the request authenticator (which is how the token
-gets attached to outgoing requests). To add a customization just create a bean of type
-`UserInfoRestTemplateCustomizer` - it has a single method that will be called after the
-bean is created but before it is initialized. The rest template that is being customized
-here is _only_ used internally to carry out authentication.
+internally to fetch user details for authentication. This is provided as a `@Bean` of
+type `UserInfoRestTemplateFactory`. The default should be fine for most providers, but
+occasionally you might need to add additional interceptors, or change the request
+authenticator (which is how the token gets attached to outgoing requests). To add a
+customization just create a bean of type `UserInfoRestTemplateCustomizer` - it has a
+single method that will be called after the bean is created but before it is initialized.
+The rest template that is being customized here is _only_ used internally to carry out
+authentication. Alternatively, you could define your own `UserInfoRestTemplateFactory`
+`@Bean` to take full control.
 
 [TIP]
 ====