Allow to reuse disableSslVerify method, move it to HttpSupport

The disableSslVerify method will be used in the follow up change.

Change-Id: Ie00b5e14244a9a036cbdef94768007f1c25aa8d3
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit/src/org/eclipse/jgit/transport/TransportHttp.java

@@ -67,9 +67,6 @@ import java.net.MalformedURLException;
 import java.net.Proxy;
 import java.net.ProxySelector;
 import java.net.URL;
-import java.security.KeyManagementException;
-import java.security.NoSuchAlgorithmException;
-import java.security.cert.X509Certificate;
 import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -83,11 +80,6 @@ import java.util.TreeMap;
 import java.util.zip.GZIPInputStream;
 import java.util.zip.GZIPOutputStream;
 
-import javax.net.ssl.HostnameVerifier;
-import javax.net.ssl.SSLSession;
-import javax.net.ssl.TrustManager;
-import javax.net.ssl.X509TrustManager;
-
 import org.eclipse.jgit.errors.NoRemoteRepositoryException;
 import org.eclipse.jgit.errors.NotSupportedException;
 import org.eclipse.jgit.errors.PackProtocolException;
@@ -538,7 +530,7 @@ public class TransportHttp extends HttpTransport implements WalkTransport,
 		HttpConnection conn = connectionFactory.create(u, proxy);
 
 		if (!http.sslVerify && "https".equals(u.getProtocol())) { //$NON-NLS-1$
-			disableSslVerify(conn);
+			HttpSupport.disableSslVerify(conn);
 		}
 
 		conn.setRequestMethod(method);
@@ -562,19 +554,6 @@ public class TransportHttp extends HttpTransport implements WalkTransport,
 		return conn;
 	}
 
-	private void disableSslVerify(HttpConnection conn)
-			throws IOException {
-		final TrustManager[] trustAllCerts = new TrustManager[] { new DummyX509TrustManager() };
-		try {
-			conn.configure(null, trustAllCerts, null);
-			conn.setHostnameVerifier(new DummyHostnameVerifier());
-		} catch (KeyManagementException e) {
-			throw new IOException(e.getMessage());
-		} catch (NoSuchAlgorithmException e) {
-			throw new IOException(e.getMessage());
-		}
-	}
-
 	final InputStream openInputStream(HttpConnection conn)
 			throws IOException {
 		InputStream input = conn.getInputStream();
@@ -1002,25 +981,4 @@ public class TransportHttp extends HttpTransport implements WalkTransport,
 			in.add(openInputStream(conn));
 		}
 	}
-
-	private static class DummyX509TrustManager implements X509TrustManager {
-		public X509Certificate[] getAcceptedIssuers() {
-			return null;
-		}
-
-		public void checkClientTrusted(X509Certificate[] certs, String authType) {
-			// no check
-		}
-
-		public void checkServerTrusted(X509Certificate[] certs, String authType) {
-			// no check
-		}
-	}
-
-	private static class DummyHostnameVerifier implements HostnameVerifier {
-		public boolean verify(String hostname, SSLSession session) {
-			// always accept
-			return true;
-		}
-	}
 }

org.eclipse.jgit/src/org/eclipse/jgit/util/HttpSupport.java

@@ -52,8 +52,16 @@ import java.net.ProxySelector;
 import java.net.URISyntaxException;
 import java.net.URL;
 import java.net.URLEncoder;
+import java.security.KeyManagementException;
+import java.security.NoSuchAlgorithmException;
+import java.security.cert.X509Certificate;
 import java.text.MessageFormat;
 
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.SSLSession;
+import javax.net.ssl.TrustManager;
+import javax.net.ssl.X509TrustManager;
+
 import org.eclipse.jgit.internal.JGitText;
 import org.eclipse.jgit.transport.http.HttpConnection;
 
@@ -62,6 +70,14 @@ public class HttpSupport {
 	/** The {@code GET} HTTP method. */
 	public static final String METHOD_GET = "GET"; //$NON-NLS-1$
 
+	/** The {@code HEAD} HTTP method.
+	 * @since 4.3 */
+	public static final String METHOD_HEAD = "HEAD"; //$NON-NLS-1$
+
+	/** The {@code POST} HTTP method.
+	 * @since 4.3 */
+	public static final String METHOD_PUT = "PUT"; //$NON-NLS-1$
+
 	/** The {@code POST} HTTP method. */
 	public static final String METHOD_POST = "POST"; //$NON-NLS-1$
 
@@ -234,6 +250,50 @@ public class HttpSupport {
 		}
 	}
 
+	/**
+	 * Disable SSL and hostname verification for given HTTP connection
+	 *
+	 * @param conn
+	 * @throws IOException
+	 * @since 4.3
+	 */
+	public static void disableSslVerify(HttpConnection conn)
+			throws IOException {
+		final TrustManager[] trustAllCerts = new TrustManager[] {
+				new DummyX509TrustManager() };
+		try {
+			conn.configure(null, trustAllCerts, null);
+			conn.setHostnameVerifier(new DummyHostnameVerifier());
+		} catch (KeyManagementException e) {
+			throw new IOException(e.getMessage());
+		} catch (NoSuchAlgorithmException e) {
+			throw new IOException(e.getMessage());
+		}
+	}
+
+	private static class DummyX509TrustManager implements X509TrustManager {
+		public X509Certificate[] getAcceptedIssuers() {
+			return null;
+		}
+
+		public void checkClientTrusted(X509Certificate[] certs,
+				String authType) {
+			// no check
+		}
+
+		public void checkServerTrusted(X509Certificate[] certs,
+				String authType) {
+			// no check
+		}
+	}
+
+	private static class DummyHostnameVerifier implements HostnameVerifier {
+		public boolean verify(String hostname, SSLSession session) {
+			// always accept
+			return true;
+		}
+	}
+
 	private HttpSupport() {
 		// Utility class only.
 	}