Merge pull request #252 from michael-wirth/bugfix/fix-connection-factory-ssl-support

Add SSL support for connection factory with SSL validation

spring-cloud-commons/src/main/java/org/springframework/cloud/commons/httpclient/DefaultApacheHttpClientConnectionManagerFactory.java

@@ -23,6 +23,7 @@ import org.apache.commons.logging.Log;
 /**
  * Default implementation of {@link ApacheHttpClientConnectionManagerFactory}.
  * @author Ryan Baxter
+ * @author Michael Wirth
  */
 public class DefaultApacheHttpClientConnectionManagerFactory
 		implements ApacheHttpClientConnectionManagerFactory {
@@ -47,24 +48,11 @@ public class DefaultApacheHttpClientConnectionManagerFactory
 		if (disableSslValidation) {
 			try {
 				final SSLContext sslContext = SSLContext.getInstance("SSL");
-				sslContext.init(null, new TrustManager[] { new X509TrustManager() {
-					@Override
-					public void checkClientTrusted(X509Certificate[] x509Certificates,
-							String s) throws CertificateException {
-					}
-
-					@Override
-					public void checkServerTrusted(X509Certificate[] x509Certificates,
-							String s) throws CertificateException {
-					}
-
-					@Override
-					public X509Certificate[] getAcceptedIssuers() {
-						return null;
-					}
-				} }, new SecureRandom());
+				sslContext.init(null,
+					new TrustManager[] { new DisabledValidationTrustManager()},
+					new SecureRandom());
 				registryBuilder.register(HTTPS_SCHEME, new SSLConnectionSocketFactory(
-						sslContext, NoopHostnameVerifier.INSTANCE));
+					sslContext, NoopHostnameVerifier.INSTANCE));
 			}
 			catch (NoSuchAlgorithmException e) {
 				LOG.warn("Error creating SSLContext", e);
@@ -72,6 +60,8 @@ public class DefaultApacheHttpClientConnectionManagerFactory
 			catch (KeyManagementException e) {
 				LOG.warn("Error creating SSLContext", e);
 			}
+		} else {
+			registryBuilder.register("https", SSLConnectionSocketFactory.getSocketFactory());
 		}
 		final Registry<ConnectionSocketFactory> registry = registryBuilder.build();
 
@@ -82,4 +72,21 @@ public class DefaultApacheHttpClientConnectionManagerFactory
 
 		return connectionManager;
 	}
+
+	class DisabledValidationTrustManager implements X509TrustManager {
+		@Override
+		public void checkClientTrusted(X509Certificate[] x509Certificates,
+			String s) throws CertificateException {
+		}
+
+		@Override
+		public void checkServerTrusted(X509Certificate[] x509Certificates,
+			String s) throws CertificateException {
+		}
+
+		@Override
+		public X509Certificate[] getAcceptedIssuers() {
+			return null;
+		}
+	}
 }

spring-cloud-commons/src/test/java/org/springframework/cloud/commons/httpclient/DefaultApacheHttpClientConnectionManagerFactoryTests.java

@@ -1,17 +1,26 @@
 package org.springframework.cloud.commons.httpclient;
 
-import java.lang.reflect.Field;
-import java.util.concurrent.TimeUnit;
-
+import org.apache.http.config.Lookup;
 import org.apache.http.conn.HttpClientConnectionManager;
+import org.apache.http.conn.socket.ConnectionSocketFactory;
+import org.apache.http.impl.conn.DefaultHttpClientConnectionOperator;
 import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
 import org.junit.Test;
 import org.springframework.util.ReflectionUtils;
 
+import javax.net.ssl.SSLContextSpi;
+import javax.net.ssl.SSLSocketFactory;
+import javax.net.ssl.X509TrustManager;
+import java.lang.reflect.Field;
+import java.util.concurrent.TimeUnit;
+
+import static org.hamcrest.Matchers.*;
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertThat;
 
 /**
  * @author Ryan Baxter
+ * @author Michael Wirth
  */
 public class DefaultApacheHttpClientConnectionManagerFactoryTests {
 	@Test
@@ -42,6 +51,42 @@ public class DefaultApacheHttpClientConnectionManagerFactoryTests {
 		assertEquals(TimeUnit.DAYS, timeUnit);
 	}
 
+	@Test
+	public void newConnectionManagerWithSSL() throws Exception {
+		HttpClientConnectionManager connectionManager = new DefaultApacheHttpClientConnectionManagerFactory()
+			.newConnectionManager(false, 2, 6);
+
+		Lookup<ConnectionSocketFactory> socketFactoryRegistry = getConnectionSocketFactoryLookup(
+			connectionManager);
+		assertThat(socketFactoryRegistry.lookup("https"), is(notNullValue()));
+		assertThat(getX509TrustManager(socketFactoryRegistry).getAcceptedIssuers(), is(notNullValue()));
+	}
+
+	@Test
+	public void newConnectionManagerWithDisabledSSLValidation() throws Exception {
+		HttpClientConnectionManager connectionManager = new DefaultApacheHttpClientConnectionManagerFactory()
+			.newConnectionManager(true, 2, 6);
+
+		Lookup<ConnectionSocketFactory> socketFactoryRegistry = getConnectionSocketFactoryLookup(
+			connectionManager);
+		assertThat(socketFactoryRegistry.lookup("https"), is(notNullValue()));
+		assertThat(getX509TrustManager(socketFactoryRegistry).getAcceptedIssuers(), is(nullValue()));
+	}
+
+	private Lookup<ConnectionSocketFactory> getConnectionSocketFactoryLookup(
+		HttpClientConnectionManager connectionManager) {
+		DefaultHttpClientConnectionOperator connectionOperator = getField(connectionManager, "connectionOperator");
+		return getField(connectionOperator, "socketFactoryRegistry");
+	}
+
+	private X509TrustManager getX509TrustManager(
+		Lookup<ConnectionSocketFactory> socketFactoryRegistry) {
+		ConnectionSocketFactory connectionSocketFactory = socketFactoryRegistry.lookup("https");
+		SSLSocketFactory sslSocketFactory = getField(connectionSocketFactory, "socketfactory");
+		SSLContextSpi sslContext = getField(sslSocketFactory, "context");
+		return getField(sslContext, "trustManager");
+	}
+
 	@SuppressWarnings("unchecked")
 	protected <T> T getField(Object target, String name) {
 		Field field = ReflectionUtils.findField(target.getClass(), name);