Automatically X-Forwarded-For in the cloud

Update `ServerProperties` to automatically enable `use-forward-headers`
when running on a cloud platform.

A new `CloudPlatform` enum has been introduced that detects Heroku and
Cloud Foundry.

See gh-4018

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/ServerProperties.java

@@ -38,6 +38,7 @@ import org.apache.coyote.AbstractProtocol;
 import org.apache.coyote.ProtocolHandler;
 import org.apache.coyote.http11.AbstractHttp11Protocol;
 import org.springframework.boot.autoconfigure.web.ServerProperties.Session.Cookie;
+import org.springframework.boot.cloud.CloudPlatform;
 import org.springframework.boot.context.embedded.Compression;
 import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;
 import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;
@@ -55,7 +56,9 @@ import org.springframework.boot.context.embedded.undertow.UndertowEmbeddedServle
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.boot.context.properties.DeprecatedConfigurationProperty;
 import org.springframework.boot.context.properties.NestedConfigurationProperty;
+import org.springframework.context.EnvironmentAware;
 import org.springframework.core.Ordered;
+import org.springframework.core.env.Environment;
 import org.springframework.util.StringUtils;
 
 /**
@@ -70,7 +73,8 @@ import org.springframework.util.StringUtils;
  * @author Marcos Barbero
  */
 @ConfigurationProperties(prefix = "server", ignoreUnknownFields = true)
-public class ServerProperties implements EmbeddedServletContainerCustomizer, Ordered {
+public class ServerProperties implements EmbeddedServletContainerCustomizer,
+		EnvironmentAware, Ordered {
 
 	/**
 	 * Server HTTP port.
@@ -106,7 +110,7 @@ public class ServerProperties implements EmbeddedServletContainerCustomizer, Ord
 	/**
 	 * If X-Forwarded-* headers should be applied to the HttpRequest.
 	 */
-	private boolean useForwardHeaders;
+	private Boolean useForwardHeaders;
 
 	private Session session = new Session();
 
@@ -125,11 +129,18 @@ public class ServerProperties implements EmbeddedServletContainerCustomizer, Ord
 
 	private final Undertow undertow = new Undertow();
 
+	private Environment environment;
+
 	@Override
 	public int getOrder() {
 		return 0;
 	}
 
+	@Override
+	public void setEnvironment(Environment environment) {
+		this.environment = environment;
+	}
+
 	@Override
 	public void customize(ConfigurableEmbeddedServletContainer container) {
 		if (getPort() != null) {
@@ -280,14 +291,22 @@ public class ServerProperties implements EmbeddedServletContainerCustomizer, Ord
 		return this.contextParameters;
 	}
 
-	public boolean isUseForwardHeaders() {
+	public Boolean isUseForwardHeaders() {
 		return this.useForwardHeaders;
 	}
 
-	public void setUseForwardHeaders(boolean useForwardHeaders) {
+	public void setUseForwardHeaders(Boolean useForwardHeaders) {
 		this.useForwardHeaders = useForwardHeaders;
 	}
 
+	protected final boolean getOrDeduceUseForwardHeaders() {
+		if (this.useForwardHeaders != null) {
+			return this.useForwardHeaders;
+		}
+		CloudPlatform platform = CloudPlatform.getActive(this.environment);
+		return (platform == null ? false : platform.isUsingForwardHeaders());
+	}
+
 	/**
 	 * Get the session timeout.
 	 * @return the session timeout
@@ -722,7 +741,7 @@ public class ServerProperties implements EmbeddedServletContainerCustomizer, Ord
 			// For back compatibility the valve is also enabled if protocol-header is set
 			if (StringUtils.hasText(protocolHeader)
 					|| StringUtils.hasText(remoteIpHeader)
-					|| properties.isUseForwardHeaders()) {
+					|| properties.getOrDeduceUseForwardHeaders()) {
 				RemoteIpValve valve = new RemoteIpValve();
 				valve.setProtocolHeader(StringUtils.hasLength(protocolHeader) ? protocolHeader
 						: "X-Forwarded-Proto");
@@ -856,7 +875,7 @@ public class ServerProperties implements EmbeddedServletContainerCustomizer, Ord
 
 		void customizeJetty(ServerProperties serverProperties,
 				JettyEmbeddedServletContainerFactory factory) {
-			factory.setUseForwardHeaders(serverProperties.isUseForwardHeaders());
+			factory.setUseForwardHeaders(serverProperties.getOrDeduceUseForwardHeaders());
 		}
 
 	}
@@ -1007,7 +1026,7 @@ public class ServerProperties implements EmbeddedServletContainerCustomizer, Ord
 			factory.setAccessLogDirectory(this.accesslog.dir);
 			factory.setAccessLogPattern(this.accesslog.pattern);
 			factory.setAccessLogEnabled(this.accesslog.enabled);
-			factory.setUseForwardHeaders(serverProperties.isUseForwardHeaders());
+			factory.setUseForwardHeaders(serverProperties.getOrDeduceUseForwardHeaders());
 		}
 
 		public static class Accesslog {

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/ServerPropertiesTests.java

@@ -42,6 +42,7 @@ import org.springframework.boot.context.embedded.ServletContextInitializer;
 import org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainerFactory;
 import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
 import org.springframework.boot.context.embedded.undertow.UndertowEmbeddedServletContainerFactory;
+import org.springframework.mock.env.MockEnvironment;
 
 import static org.hamcrest.Matchers.equalTo;
 import static org.hamcrest.Matchers.instanceOf;
@@ -61,6 +62,7 @@ import static org.mockito.Mockito.verify;
  * @author Dave Syer
  * @author Stephane Nicoll
  * @author Andy Wilkinson
+ * @author Phillip Webb
  */
 public class ServerPropertiesTests {
 
@@ -242,10 +244,8 @@ public class ServerPropertiesTests {
 		Map<String, String> map = new HashMap<String, String>();
 		map.put("server.display-name", "MyBootApp");
 		bindProperties(map);
-
 		TomcatEmbeddedServletContainerFactory container = new TomcatEmbeddedServletContainerFactory();
 		this.properties.customize(container);
-
 		assertEquals("MyBootApp", container.getDisplayName());
 	}
 
@@ -277,6 +277,12 @@ public class ServerPropertiesTests {
 		testRemoteIpValveConfigured();
 	}
 
+	@Test
+	public void deduceUseForwardHeadersTomcat() throws Exception {
+		this.properties.setEnvironment(new MockEnvironment().withProperty("DYNO", "-"));
+		testRemoteIpValveConfigured();
+	}
+
 	private void testRemoteIpValveConfigured() {
 		TomcatEmbeddedServletContainerFactory container = new TomcatEmbeddedServletContainerFactory();
 		this.properties.customize(container);
@@ -321,6 +327,13 @@ public class ServerPropertiesTests {
 		assertEquals("192.168.0.1", remoteIpValve.getInternalProxies());
 	}
 
+	@Test
+	public void defaultUseForwardHeadersUndertow() throws Exception {
+		UndertowEmbeddedServletContainerFactory container = spy(new UndertowEmbeddedServletContainerFactory());
+		this.properties.customize(container);
+		verify(container).setUseForwardHeaders(false);
+	}
+
 	@Test
 	public void setUseForwardHeadersUndertow() throws Exception {
 		this.properties.setUseForwardHeaders(true);
@@ -329,6 +342,21 @@ public class ServerPropertiesTests {
 		verify(container).setUseForwardHeaders(true);
 	}
 
+	@Test
+	public void deduceUseForwardHeadersUndertow() throws Exception {
+		this.properties.setEnvironment(new MockEnvironment().withProperty("DYNO", "-"));
+		UndertowEmbeddedServletContainerFactory container = spy(new UndertowEmbeddedServletContainerFactory());
+		this.properties.customize(container);
+		verify(container).setUseForwardHeaders(true);
+	}
+
+	@Test
+	public void defaultUseForwardHeadersJetty() throws Exception {
+		JettyEmbeddedServletContainerFactory container = spy(new JettyEmbeddedServletContainerFactory());
+		this.properties.customize(container);
+		verify(container).setUseForwardHeaders(false);
+	}
+
 	@Test
 	public void setUseForwardHeadersJetty() throws Exception {
 		this.properties.setUseForwardHeaders(true);
@@ -337,6 +365,14 @@ public class ServerPropertiesTests {
 		verify(container).setUseForwardHeaders(true);
 	}
 
+	@Test
+	public void deduceUseForwardHeadersJetty() throws Exception {
+		this.properties.setEnvironment(new MockEnvironment().withProperty("DYNO", "-"));
+		JettyEmbeddedServletContainerFactory container = spy(new JettyEmbeddedServletContainerFactory());
+		this.properties.customize(container);
+		verify(container).setUseForwardHeaders(true);
+	}
+
 	private void bindProperties(Map<String, String> map) {
 		new RelaxedDataBinder(this.properties, "server").bind(new MutablePropertyValues(
 				map));

spring-boot/src/main/java/org/springframework/boot/cloud/CloudFoundryVcapEnvironmentPostProcessor.java

@@ -0,0 +1,241 @@
+/*
+ * Copyright 2010-2015 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.cloud;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Properties;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.context.config.ConfigFileEnvironmentPostProcessor;
+import org.springframework.boot.env.EnvironmentPostProcessor;
+import org.springframework.boot.json.JsonParser;
+import org.springframework.boot.json.JsonParserFactory;
+import org.springframework.core.Ordered;
+import org.springframework.core.env.CommandLinePropertySource;
+import org.springframework.core.env.ConfigurableEnvironment;
+import org.springframework.core.env.Environment;
+import org.springframework.core.env.MutablePropertySources;
+import org.springframework.core.env.PropertiesPropertySource;
+import org.springframework.util.StringUtils;
+
+/**
+ * An {@link EnvironmentPostProcessor} that knows where to find VCAP (a.k.a. Cloud
+ * Foundry) meta data in the existing environment. It parses out the VCAP_APPLICATION and
+ * VCAP_SERVICES meta data and dumps it in a form that is easily consumed by
+ * {@link Environment} users. If the app is running in Cloud Foundry then both meta data
+ * items are JSON objects encoded in OS environment variables. VCAP_APPLICATION is a
+ * shallow hash with basic information about the application (name, instance id, instance
+ * index, etc.), and VCAP_SERVICES is a hash of lists where the keys are service labels
+ * and the values are lists of hashes of service instance meta data. Examples are:
+ *
+ * <pre class="code">
+ * VCAP_APPLICATION: {"instance_id":"2ce0ac627a6c8e47e936d829a3a47b5b","instance_index":0,
+ *   "version":"0138c4a6-2a73-416b-aca0-572c09f7ca53","name":"foo",
+ *   "uris":["foo.cfapps.io"], ...}
+ * VCAP_SERVICES: {"rds-mysql-1.0":[{"name":"mysql","label":"rds-mysql-1.0","plan":"10mb",
+ *   "credentials":{"name":"d04fb13d27d964c62b267bbba1cffb9da","hostname":"mysql-service-public.clqg2e2w3ecf.us-east-1.rds.amazonaws.com",
+ *   "host":"mysql-service-public.clqg2e2w3ecf.us-east-1.rds.amazonaws.com","port":3306,"user":"urpRuqTf8Cpe6",
+ *   "username":"urpRuqTf8Cpe6","password":"pxLsGVpsC9A5S"}
+ * }]}
+ * </pre>
+ *
+ * These objects are flattened into properties. The VCAP_APPLICATION object goes straight
+ * to {@code vcap.application.*} in a fairly obvious way, and the VCAP_SERVICES object is
+ * unwrapped so that it is a hash of objects with key equal to the service instance name
+ * (e.g. "mysql" in the example above), and value equal to that instances properties, and
+ * then flattened in the same way. E.g.
+ *
+ * <pre class="code">
+ * vcap.application.instance_id: 2ce0ac627a6c8e47e936d829a3a47b5b
+ * vcap.application.version: 0138c4a6-2a73-416b-aca0-572c09f7ca53
+ * vcap.application.name: foo
+ * vcap.application.uris[0]: foo.cfapps.io
+ *
+ * vcap.services.mysql.name: mysql
+ * vcap.services.mysql.label: rds-mysql-1.0
+ * vcap.services.mysql.credentials.name: d04fb13d27d964c62b267bbba1cffb9da
+ * vcap.services.mysql.credentials.port: 3306
+ * vcap.services.mysql.credentials.host: mysql-service-public.clqg2e2w3ecf.us-east-1.rds.amazonaws.com
+ * vcap.services.mysql.credentials.username: urpRuqTf8Cpe6
+ * vcap.services.mysql.credentials.password: pxLsGVpsC9A5S
+ * ...
+ * </pre>
+ *
+ * N.B. this initializer is mainly intended for informational use (the application and
+ * instance ids are particularly useful). For service binding you might find that Spring
+ * Cloud is more convenient and more robust against potential changes in Cloud Foundry.
+ *
+ * @author Dave Syer
+ * @author Andy Wilkinson
+ */
+public class CloudFoundryVcapEnvironmentPostProcessor implements EnvironmentPostProcessor, Ordered {
+
+	private static final Log logger = LogFactory
+			.getLog(CloudFoundryVcapEnvironmentPostProcessor.class);
+
+	private static final String VCAP_APPLICATION = "VCAP_APPLICATION";
+
+	private static final String VCAP_SERVICES = "VCAP_SERVICES";
+
+	// Before ConfigFileApplicationListener so values there can use these ones
+	private int order = ConfigFileEnvironmentPostProcessor.DEFAULT_ORDER - 1;
+
+	private final JsonParser parser = JsonParserFactory.getJsonParser();
+
+	public void setOrder(int order) {
+		this.order = order;
+	}
+
+	@Override
+	public int getOrder() {
+		return this.order;
+	}
+
+	@Override
+	public void postProcessEnvironment(ConfigurableEnvironment environment,
+			SpringApplication application) {
+		if (CloudPlatform.CLOUD_FOUNDRY.isActive(environment)) {
+			Properties properties = new Properties();
+			addWithPrefix(properties, getPropertiesFromApplication(environment),
+					"vcap.application.");
+			addWithPrefix(properties, getPropertiesFromServices(environment),
+					"vcap.services.");
+			MutablePropertySources propertySources = environment.getPropertySources();
+			if (propertySources
+					.contains(CommandLinePropertySource.COMMAND_LINE_PROPERTY_SOURCE_NAME)) {
+				propertySources.addAfter(
+						CommandLinePropertySource.COMMAND_LINE_PROPERTY_SOURCE_NAME,
+						new PropertiesPropertySource("vcap", properties));
+			}
+			else {
+				propertySources
+						.addFirst(new PropertiesPropertySource("vcap", properties));
+			}
+		}
+	}
+
+	private void addWithPrefix(Properties properties, Properties other, String prefix) {
+		for (String key : other.stringPropertyNames()) {
+			String prefixed = prefix + key;
+			properties.setProperty(prefixed, other.getProperty(key));
+		}
+	}
+
+	private Properties getPropertiesFromApplication(Environment environment) {
+		Properties properties = new Properties();
+		try {
+			String property = environment.getProperty(VCAP_APPLICATION, "{}");
+			Map<String, Object> map = this.parser.parseMap(property);
+			extractPropertiesFromApplication(properties, map);
+		}
+		catch (Exception ex) {
+			logger.error("Could not parse VCAP_APPLICATION", ex);
+		}
+		return properties;
+	}
+
+	private Properties getPropertiesFromServices(Environment environment) {
+		Properties properties = new Properties();
+		try {
+			String property = environment.getProperty(VCAP_SERVICES, "{}");
+			Map<String, Object> map = this.parser.parseMap(property);
+			extractPropertiesFromServices(properties, map);
+		}
+		catch (Exception ex) {
+			logger.error("Could not parse VCAP_SERVICES", ex);
+		}
+		return properties;
+	}
+
+	private void extractPropertiesFromApplication(Properties properties,
+			Map<String, Object> map) {
+		if (map != null) {
+			flatten(properties, map, "");
+		}
+	}
+
+	private void extractPropertiesFromServices(Properties properties,
+			Map<String, Object> map) {
+		if (map != null) {
+			for (Object services : map.values()) {
+				@SuppressWarnings("unchecked")
+				List<Object> list = (List<Object>) services;
+				for (Object object : list) {
+					@SuppressWarnings("unchecked")
+					Map<String, Object> service = (Map<String, Object>) object;
+					String key = (String) service.get("name");
+					if (key == null) {
+						key = (String) service.get("label");
+					}
+					flatten(properties, service, key);
+				}
+			}
+		}
+	}
+
+	@SuppressWarnings("unchecked")
+	private void flatten(Properties properties, Map<String, Object> input, String path) {
+		for (Entry<String, Object> entry : input.entrySet()) {
+			String key = getFullKey(path, entry.getKey());
+			Object value = entry.getValue();
+			if (value instanceof Map) {
+				// Need a compound key
+				flatten(properties, (Map<String, Object>) value, key);
+			}
+			else if (value instanceof Collection) {
+				// Need a compound key
+				Collection<Object> collection = (Collection<Object>) value;
+				properties.put(key,
+						StringUtils.collectionToCommaDelimitedString(collection));
+				int count = 0;
+				for (Object item : collection) {
+					String itemKey = "[" + (count++) + "]";
+					flatten(properties, Collections.singletonMap(itemKey, item), key);
+				}
+			}
+			else if (value instanceof String) {
+				properties.put(key, value);
+			}
+			else if (value instanceof Number) {
+				properties.put(key, value.toString());
+			}
+			else if (value instanceof Boolean) {
+				properties.put(key, value.toString());
+			}
+			else {
+				properties.put(key, value == null ? "" : value);
+			}
+		}
+	}
+
+	private String getFullKey(String path, String key) {
+		if (!StringUtils.hasText(path)) {
+			return key;
+		}
+		if (key.startsWith("[")) {
+			return path + key;
+		}
+		return path + "." + key;
+	}
+
+}

spring-boot/src/main/java/org/springframework/boot/cloud/CloudPlatform.java

@@ -0,0 +1,88 @@
+/*
+ * Copyright 2012-2015 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.cloud;
+
+import org.springframework.core.env.Environment;
+
+/**
+ * Simple detection for well known cloud platforms. For more advanced cloud provider
+ * integration consider the Spring Clould project.
+ *
+ * @author Phillip Webb
+ * @since 1.3.0
+ * @see "http://cloud.spring.io"
+ */
+public enum CloudPlatform {
+
+	/**
+	 * Cloud Foundry platform.
+	 */
+	CLOUD_FOUNDRY {
+
+		@Override
+		public boolean isActive(Environment environment) {
+			return environment.containsProperty("VCAP_APPLICATION")
+					|| environment.containsProperty("VCAP_SERVICES");
+		}
+
+	},
+
+	/**
+	 * Heroku platform.
+	 */
+	HEROKU {
+
+		@Override
+		public boolean isActive(Environment environment) {
+			return environment.containsProperty("DYNO");
+		}
+
+	};
+
+	/**
+	 * Determines if the platform is active (i.e. the application is running in it).
+	 * @param environment the environment
+	 * @return if the platform is active.
+	 */
+	public abstract boolean isActive(Environment environment);
+
+	/**
+	 * Returns if the platform is behind a load balancer and uses
+	 * {@literal X-Forwarded-For} headers.
+	 * @return if {@literal X-Forwarded-For} headers are used
+	 */
+	public boolean isUsingForwardHeaders() {
+		return true;
+	}
+
+	/**
+	 * Returns the active {@link CloudPlatform} or {@code null} if one cannot be deduced.
+	 * @param environment the environment
+	 * @return the {@link CloudPlatform} or {@code null}
+	 */
+	public static CloudPlatform getActive(Environment environment) {
+		if (environment != null) {
+			for (CloudPlatform cloudPlatform : values()) {
+				if (cloudPlatform.isActive(environment)) {
+					return cloudPlatform;
+				}
+			}
+		}
+		return null;
+	}
+
+}

spring-boot/src/main/java/org/springframework/boot/cloud/package-info.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2014 the original author or authors.
+ * Copyright 2012-2015 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.
@@ -15,7 +15,7 @@
  */
 
 /**
- * Support for Cloud Foundry PAAS based deployment.
+ * Low level support for Cloud deployments.
  */
-package org.springframework.boot.cloudfoundry;
+package org.springframework.boot.cloud;
 

spring-boot/src/main/java/org/springframework/boot/cloudfoundry/VcapEnvironmentPostProcessor.java

@@ -16,27 +16,9 @@
 
 package org.springframework.boot.cloudfoundry;
 
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Properties;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.context.config.ConfigFileEnvironmentPostProcessor;
+import org.springframework.boot.cloud.CloudFoundryVcapEnvironmentPostProcessor;
 import org.springframework.boot.env.EnvironmentPostProcessor;
-import org.springframework.boot.json.JsonParser;
-import org.springframework.boot.json.JsonParserFactory;
-import org.springframework.core.Ordered;
-import org.springframework.core.env.CommandLinePropertySource;
-import org.springframework.core.env.ConfigurableEnvironment;
 import org.springframework.core.env.Environment;
-import org.springframework.core.env.MutablePropertySources;
-import org.springframework.core.env.PropertiesPropertySource;
-import org.springframework.util.StringUtils;
 
 /**
  * An {@link EnvironmentPostProcessor} that knows where to find VCAP (a.k.a. Cloud
@@ -87,156 +69,10 @@ import org.springframework.util.StringUtils;
  *
  * @author Dave Syer
  * @author Andy Wilkinson
+ * @deprecated since 1.3.0 in favor of CloudFoundryVcapEnvironmentPostProcessor
  */
-public class VcapEnvironmentPostProcessor implements EnvironmentPostProcessor, Ordered {
-
-	private static final Log logger = LogFactory
-			.getLog(VcapEnvironmentPostProcessor.class);
-
-	private static final String VCAP_APPLICATION = "VCAP_APPLICATION";
-
-	private static final String VCAP_SERVICES = "VCAP_SERVICES";
-
-	// Before ConfigFileApplicationListener so values there can use these ones
-	private int order = ConfigFileEnvironmentPostProcessor.DEFAULT_ORDER - 1;
-
-	private final JsonParser parser = JsonParserFactory.getJsonParser();
-
-	public void setOrder(int order) {
-		this.order = order;
-	}
-
-	@Override
-	public int getOrder() {
-		return this.order;
-	}
-
-	@Override
-	public void postProcessEnvironment(ConfigurableEnvironment environment,
-			SpringApplication application) {
-		if (!environment.containsProperty(VCAP_APPLICATION)
-				&& !environment.containsProperty(VCAP_SERVICES)) {
-			return;
-		}
-		Properties properties = new Properties();
-		addWithPrefix(properties, getPropertiesFromApplication(environment),
-				"vcap.application.");
-		addWithPrefix(properties, getPropertiesFromServices(environment),
-				"vcap.services.");
-		MutablePropertySources propertySources = environment.getPropertySources();
-		if (propertySources
-				.contains(CommandLinePropertySource.COMMAND_LINE_PROPERTY_SOURCE_NAME)) {
-			propertySources.addAfter(
-					CommandLinePropertySource.COMMAND_LINE_PROPERTY_SOURCE_NAME,
-					new PropertiesPropertySource("vcap", properties));
-		}
-		else {
-			propertySources.addFirst(new PropertiesPropertySource("vcap", properties));
-		}
-	}
-
-	private void addWithPrefix(Properties properties, Properties other, String prefix) {
-		for (String key : other.stringPropertyNames()) {
-			String prefixed = prefix + key;
-			properties.setProperty(prefixed, other.getProperty(key));
-		}
-	}
-
-	private Properties getPropertiesFromApplication(Environment environment) {
-		Properties properties = new Properties();
-		try {
-			Map<String, Object> map = this.parser.parseMap(environment.getProperty(
-					VCAP_APPLICATION, "{}"));
-			extractPropertiesFromApplication(properties, map);
-		}
-		catch (Exception ex) {
-			logger.error("Could not parse VCAP_APPLICATION", ex);
-		}
-		return properties;
-	}
-
-	private Properties getPropertiesFromServices(Environment environment) {
-		Properties properties = new Properties();
-		try {
-			Map<String, Object> map = this.parser.parseMap(environment.getProperty(
-					VCAP_SERVICES, "{}"));
-			extractPropertiesFromServices(properties, map);
-		}
-		catch (Exception ex) {
-			logger.error("Could not parse VCAP_SERVICES", ex);
-		}
-		return properties;
-	}
-
-	private void extractPropertiesFromApplication(Properties properties,
-			Map<String, Object> map) {
-		if (map != null) {
-			flatten(properties, map, "");
-		}
-	}
-
-	private void extractPropertiesFromServices(Properties properties,
-			Map<String, Object> map) {
-		if (map != null) {
-			for (Object services : map.values()) {
-				@SuppressWarnings("unchecked")
-				List<Object> list = (List<Object>) services;
-				for (Object object : list) {
-					@SuppressWarnings("unchecked")
-					Map<String, Object> service = (Map<String, Object>) object;
-					String key = (String) service.get("name");
-					if (key == null) {
-						key = (String) service.get("label");
-					}
-					flatten(properties, service, key);
-				}
-			}
-		}
-	}
-
-	@SuppressWarnings("unchecked")
-	private void flatten(Properties properties, Map<String, Object> input, String path) {
-		for (Entry<String, Object> entry : input.entrySet()) {
-			String key = getFullKey(path, entry.getKey());
-			Object value = entry.getValue();
-			if (value instanceof Map) {
-				// Need a compound key
-				flatten(properties, (Map<String, Object>) value, key);
-			}
-			else if (value instanceof Collection) {
-				// Need a compound key
-				Collection<Object> collection = (Collection<Object>) value;
-				properties.put(key,
-						StringUtils.collectionToCommaDelimitedString(collection));
-				int count = 0;
-				for (Object item : collection) {
-					String itemKey = "[" + (count++) + "]";
-					flatten(properties, Collections.singletonMap(itemKey, item), key);
-				}
-			}
-			else if (value instanceof String) {
-				properties.put(key, value);
-			}
-			else if (value instanceof Number) {
-				properties.put(key, value.toString());
-			}
-			else if (value instanceof Boolean) {
-				properties.put(key, value.toString());
-			}
-			else {
-				properties.put(key, value == null ? "" : value);
-			}
-		}
-	}
-
-	private String getFullKey(String path, String key) {
-		if (!StringUtils.hasText(path)) {
-			return key;
-		}
-		if (key.startsWith("[")) {
-			return path + key;
-		}
-		return path + "." + key;
-	}
+@Deprecated
+public class VcapEnvironmentPostProcessor extends
+		CloudFoundryVcapEnvironmentPostProcessor {
 
 }

spring-boot/src/main/resources/META-INF/spring.factories

@@ -28,5 +28,5 @@ org.springframework.boot.logging.LoggingApplicationListener
 
 # Environment Post Processors
 org.springframework.boot.env.EnvironmentPostProcessor=\
-org.springframework.boot.cloudfoundry.VcapEnvironmentPostProcessor,\
-org.springframework.boot.context.config.ConfigFileEnvironmentPostProcessor
+org.springframework.boot.cloud.CloudFoundryVcapEnvironmentPostProcessor,\
+org.springframework.boot.context.config.ConfigFileEnvironmentPostProcessor

spring-boot/src/test/java/org/springframework/boot/cloud/CloudPlatformTests.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2012-2015 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.cloud;
+
+import org.junit.Test;
+import org.springframework.core.env.Environment;
+import org.springframework.mock.env.MockEnvironment;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.nullValue;
+import static org.junit.Assert.assertThat;
+
+/**
+ * Tests for {@link CloudPlatform}.
+ *
+ * @author Phillip Webb
+ */
+public class CloudPlatformTests {
+
+	@Test
+	public void getActiveWhenEnvironmentIsNullShouldReturnNull() throws Exception {
+		CloudPlatform platform = CloudPlatform.getActive(null);
+		assertThat(platform, nullValue());
+	}
+
+	@Test
+	public void getActiveWhenNotInCloudShouldReturnNull() throws Exception {
+		Environment environment = new MockEnvironment();
+		CloudPlatform platform = CloudPlatform.getActive(environment);
+		assertThat(platform, nullValue());
+
+	}
+
+	@Test
+	public void getActiveWhenHasVcapApplicationShouldReturnCloudFoundry()
+			throws Exception {
+		Environment environment = new MockEnvironment().withProperty("VCAP_APPLICATION",
+				"---");
+		CloudPlatform platform = CloudPlatform.getActive(environment);
+		assertThat(platform, equalTo(CloudPlatform.CLOUD_FOUNDRY));
+		assertThat(platform.isActive(environment), equalTo(true));
+	}
+
+	@Test
+	public void getActiveWhenHasVcapServicesShouldReturnCloudFoundry() throws Exception {
+		Environment environment = new MockEnvironment().withProperty("VCAP_SERVICES",
+				"---");
+		CloudPlatform platform = CloudPlatform.getActive(environment);
+		assertThat(platform, equalTo(CloudPlatform.CLOUD_FOUNDRY));
+		assertThat(platform.isActive(environment), equalTo(true));
+	}
+
+	@Test
+	public void getActiveWhenHasDynoShouldReturnHeroku() throws Exception {
+		Environment environment = new MockEnvironment().withProperty("DYNO", "---");
+		CloudPlatform platform = CloudPlatform.getActive(environment);
+		assertThat(platform, equalTo(CloudPlatform.HEROKU));
+		assertThat(platform.isActive(environment), equalTo(true));
+	}
+
+}

spring-boot/src/test/java/org/springframework/boot/cloud/cloudfoundry/CloudFoundryVcapEnvironmentPostProcessorTests.java

@@ -14,9 +14,10 @@
  * limitations under the License.
  */
 
-package org.springframework.boot.cloudfoundry;
+package org.springframework.boot.cloud.cloudfoundry;
 
 import org.junit.Test;
+import org.springframework.boot.cloud.CloudFoundryVcapEnvironmentPostProcessor;
 import org.springframework.boot.test.EnvironmentTestUtils;
 import org.springframework.context.ConfigurableApplicationContext;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
@@ -25,14 +26,14 @@ import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNull;
 
 /**
- * Tests for {@link VcapEnvironmentPostProcessor}.
+ * Tests for {@link CloudFoundryVcapEnvironmentPostProcessor}.
  *
  * @author Dave Syer
  * @author Andy Wilkinson
  */
-public class VcapEnvironmentPostProcessorTests {
+public class CloudFoundryVcapEnvironmentPostProcessorTests {
 
-	private final VcapEnvironmentPostProcessor initializer = new VcapEnvironmentPostProcessor();
+	private final CloudFoundryVcapEnvironmentPostProcessor initializer = new CloudFoundryVcapEnvironmentPostProcessor();
 
 	private final ConfigurableApplicationContext context = new AnnotationConfigApplicationContext();