From 924c9b28edfda6582a5480a7c1a2dd5b3ce89d92 Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Thu, 10 Apr 2014 18:58:07 -0400
Subject: [PATCH] Eliminate use of Dagger and do not create inner classes

---
 src/main/java/com/gitblit/transport/ssh/SshDaemon.java |  267 ++++++++++-------------------------------------------
 1 files changed, 52 insertions(+), 215 deletions(-)

diff --git a/src/main/java/com/gitblit/transport/ssh/SshDaemon.java b/src/main/java/com/gitblit/transport/ssh/SshDaemon.java
index b3471a2..42ee67a 100644
--- a/src/main/java/com/gitblit/transport/ssh/SshDaemon.java
+++ b/src/main/java/com/gitblit/transport/ssh/SshDaemon.java
@@ -18,79 +18,36 @@
 import java.io.File;
 import java.io.IOException;
 import java.net.InetSocketAddress;
-import java.net.SocketAddress;
-import java.security.InvalidKeyException;
 import java.text.MessageFormat;
-import java.util.Arrays;
-import java.util.Iterator;
-import java.util.LinkedList;
-import java.util.List;
 import java.util.concurrent.atomic.AtomicBoolean;
 
-import javax.inject.Inject;
-
-import org.apache.mina.core.future.IoFuture;
-import org.apache.mina.core.future.IoFutureListener;
-import org.apache.mina.core.session.IoSession;
-import org.apache.mina.transport.socket.SocketSessionConfig;
 import org.apache.sshd.SshServer;
-import org.apache.sshd.common.Channel;
-import org.apache.sshd.common.Cipher;
-import org.apache.sshd.common.Compression;
-import org.apache.sshd.common.KeyExchange;
-import org.apache.sshd.common.KeyPairProvider;
-import org.apache.sshd.common.Mac;
-import org.apache.sshd.common.NamedFactory;
-import org.apache.sshd.common.Session;
-import org.apache.sshd.common.Signature;
-import org.apache.sshd.common.cipher.AES128CBC;
-import org.apache.sshd.common.cipher.AES192CBC;
-import org.apache.sshd.common.cipher.AES256CBC;
-import org.apache.sshd.common.cipher.BlowfishCBC;
-import org.apache.sshd.common.cipher.TripleDESCBC;
-import org.apache.sshd.common.compression.CompressionNone;
-import org.apache.sshd.common.mac.HMACMD5;
-import org.apache.sshd.common.mac.HMACMD596;
-import org.apache.sshd.common.mac.HMACSHA1;
-import org.apache.sshd.common.mac.HMACSHA196;
-import org.apache.sshd.common.random.BouncyCastleRandom;
-import org.apache.sshd.common.random.SingletonRandomFactory;
-import org.apache.sshd.common.signature.SignatureDSA;
-import org.apache.sshd.common.signature.SignatureRSA;
-import org.apache.sshd.common.util.SecurityUtils;
-import org.apache.sshd.server.CommandFactory;
-import org.apache.sshd.server.FileSystemFactory;
-import org.apache.sshd.server.FileSystemView;
-import org.apache.sshd.server.ForwardingFilter;
-import org.apache.sshd.server.PublickeyAuthenticator;
-import org.apache.sshd.server.SshFile;
-import org.apache.sshd.server.UserAuth;
-import org.apache.sshd.server.auth.UserAuthPublicKey;
-import org.apache.sshd.server.channel.ChannelDirectTcpip;
-import org.apache.sshd.server.channel.ChannelSession;
-import org.apache.sshd.server.kex.DHG1;
-import org.apache.sshd.server.kex.DHG14;
 import org.apache.sshd.server.keyprovider.PEMGeneratorHostKeyProvider;
-import org.apache.sshd.server.session.ServerSession;
-import org.apache.sshd.server.session.SessionFactory;
 import org.eclipse.jgit.internal.JGitText;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import com.gitblit.IStoredSettings;
 import com.gitblit.Keys;
+import com.gitblit.git.GitblitReceivePackFactory;
+import com.gitblit.git.GitblitUploadPackFactory;
+import com.gitblit.git.RepositoryResolver;
 import com.gitblit.manager.IGitblit;
+import com.gitblit.transport.ssh.commands.CreateRepository;
+import com.gitblit.transport.ssh.commands.DispatchCommand;
+import com.gitblit.transport.ssh.commands.VersionCommand;
 import com.gitblit.utils.IdGenerator;
 import com.gitblit.utils.StringUtils;
+import com.gitblit.utils.WorkQueue;
 
 /**
  * Manager for the ssh transport. Roughly analogous to the
  * {@link com.gitblit.git.GitDaemon} class.
- * 
+ *
  * @author Eric Myhre
- * 
+ *
  */
-public class SshDaemon extends SshServer {
+public class SshDaemon {
 
 	private final Logger log = LoggerFactory.getLogger(SshDaemon.class);
 
@@ -104,91 +61,78 @@
 
 	private static final String HOST_KEY_STORE = "sshKeyStore.pem";
 
-	private InetSocketAddress myAddress;
-
-	private AtomicBoolean run;
+	private final AtomicBoolean run;
 
 	@SuppressWarnings("unused")
-	private IGitblit gitblit;
+	private final IGitblit gitblit;
+
+	private final IdGenerator idGenerator;
+
+	private final SshServer sshd;
 
 	/**
 	 * Construct the Gitblit SSH daemon.
-	 * 
+	 *
 	 * @param gitblit
 	 */
-	@Inject
-	SshDaemon(IGitblit gitblit, IdGenerator idGenerator,
-			SshCommandFactory factory) {
+	public SshDaemon(IGitblit gitblit, IdGenerator idGenerator) {
 		this.gitblit = gitblit;
+		this.idGenerator = idGenerator;
+
 		IStoredSettings settings = gitblit.getSettings();
 		int port = settings.getInteger(Keys.git.sshPort, 0);
 		String bindInterface = settings.getString(Keys.git.sshBindInterface,
 				"localhost");
 
+		InetSocketAddress addr;
 		if (StringUtils.isEmpty(bindInterface)) {
-			myAddress = new InetSocketAddress(port);
+			addr = new InetSocketAddress(port);
 		} else {
-			myAddress = new InetSocketAddress(bindInterface, port);
+			addr = new InetSocketAddress(bindInterface, port);
 		}
 
-		setPort(myAddress.getPort());
-		setHost(myAddress.getHostName());
-		setup();
-		setKeyPairProvider(new PEMGeneratorHostKeyProvider(new File(
+		sshd = SshServer.setUpDefaultServer();
+		sshd.setPort(addr.getPort());
+		sshd.setHost(addr.getHostName());
+		sshd.setKeyPairProvider(new PEMGeneratorHostKeyProvider(new File(
 				gitblit.getBaseFolder(), HOST_KEY_STORE).getPath()));
-		setPublickeyAuthenticator(new SshKeyAuthenticator(gitblit));
+		sshd.setPublickeyAuthenticator(new SshKeyAuthenticator(gitblit));
+		sshd.setPasswordAuthenticator(new SshPasswordAuthenticator(gitblit));
+		sshd.setSessionFactory(new SshSessionFactory(idGenerator));
+		sshd.setFileSystemFactory(new DisabledFilesystemFactory());
+		sshd.setForwardingFilter(new NonForwardingFilter());
+
+		DispatchCommand dispatcher = new DispatchCommand();
+		dispatcher.registerCommand(CreateRepository.class);
+		dispatcher.registerCommand(VersionCommand.class);
+
+		SshCommandFactory commandFactory = new SshCommandFactory(
+				new RepositoryResolver<SshSession>(gitblit),
+				new GitblitUploadPackFactory<SshSession>(gitblit),
+				new GitblitReceivePackFactory<SshSession>(gitblit),
+				new WorkQueue(idGenerator),
+				dispatcher);
+
+		sshd.setCommandFactory(commandFactory);
 
 		run = new AtomicBoolean(false);
-		setCommandFactory(factory);
-		setSessionFactory(newSessionFactory(idGenerator));
-	}
-
-	SessionFactory newSessionFactory(final IdGenerator idGenerator) {
-		return new SessionFactory() {
-			@Override
-			protected ServerSession createSession(final IoSession io)
-					throws Exception {
-				log.info("connection accepted on " + io);
-				if (io.getConfig() instanceof SocketSessionConfig) {
-					final SocketSessionConfig c = (SocketSessionConfig) io
-							.getConfig();
-					c.setKeepAlive(true);
-				}
-				ServerSession s = (ServerSession) super.createSession(io);
-				SocketAddress peer = io.getRemoteAddress();
-				SshSession session = new SshSession(idGenerator.next(), peer);
-				s.setAttribute(SshSession.KEY, session);
-				io.getCloseFuture().addListener(
-						new IoFutureListener<IoFuture>() {
-							@Override
-							public void operationComplete(IoFuture future) {
-								log.info("connection closed on " + io);
-							}
-						});
-				return s;
-			}
-		};
-	}
-
-	public int getPort() {
-		return myAddress.getPort();
 	}
 
 	public String formatUrl(String gituser, String servername, String repository) {
-		if (getPort() == DEFAULT_PORT) {
+		if (sshd.getPort() == DEFAULT_PORT) {
 			// standard port
 			return MessageFormat.format("{0}@{1}/{2}", gituser, servername,
 					repository);
 		} else {
 			// non-standard port
 			return MessageFormat.format("ssh://{0}@{1}:{2,number,0}/{3}",
-					gituser, servername, getPort(), repository);
+					gituser, servername, sshd.getPort(), repository);
 		}
 	}
 
 	/**
 	 * Start this daemon on a background thread.
-	 * 
+	 *
 	 * @throws IOException
 	 *             the server socket could not be opened.
 	 * @throws IllegalStateException
@@ -199,12 +143,12 @@
 			throw new IllegalStateException(JGitText.get().daemonAlreadyRunning);
 		}
 
-		super.start();
+		sshd.start();
 		run.set(true);
 
 		log.info(MessageFormat.format(
-				"SSH Daemon is listening on {0}:{1,number,0}", myAddress
-						.getAddress().getHostAddress(), myAddress.getPort()));
+				"SSH Daemon is listening on {0}:{1,number,0}",
+				sshd.getHost(), sshd.getPort()));
 	}
 
 	/** @return true if this daemon is receiving connections. */
@@ -219,117 +163,10 @@
 			run.set(false);
 
 			try {
-				super.stop();
+				sshd.stop();
 			} catch (InterruptedException e) {
 				log.error("SSH Daemon stop interrupted", e);
 			}
 		}
-	}
-
-	/**
-	 * Performs most of default configuration (setup random sources, setup
-	 * ciphers, etc; also, support for forwarding and filesystem is explicitly
-	 * disallowed).
-	 * 
-	 * {@link #setKeyPairProvider(KeyPairProvider)} and
-	 * {@link #setPublickeyAuthenticator(PublickeyAuthenticator)} are left for
-	 * you. And applying {@link #setCommandFactory(CommandFactory)} is probably
-	 * wise if you want something to actually happen when users do successfully
-	 * authenticate.
-	 */
-	@SuppressWarnings("unchecked")
-	public void setup() {
-		if (!SecurityUtils.isBouncyCastleRegistered())
-			throw new RuntimeException("BC crypto not available");
-
-		setKeyExchangeFactories(Arrays.<NamedFactory<KeyExchange>> asList(
-				new DHG14.Factory(), new DHG1.Factory()));
-
-		setRandomFactory(new SingletonRandomFactory(
-				new BouncyCastleRandom.Factory()));
-
-		setupCiphers();
-
-		setCompressionFactories(Arrays
-				.<NamedFactory<Compression>> asList(new CompressionNone.Factory()));
-
-		setMacFactories(Arrays.<NamedFactory<Mac>> asList(
-				new HMACMD5.Factory(), new HMACSHA1.Factory(),
-				new HMACMD596.Factory(), new HMACSHA196.Factory()));
-
-		setChannelFactories(Arrays.<NamedFactory<Channel>> asList(
-				new ChannelSession.Factory(), new ChannelDirectTcpip.Factory()));
-
-		setSignatureFactories(Arrays.<NamedFactory<Signature>> asList(
-				new SignatureDSA.Factory(), new SignatureRSA.Factory()));
-
-		setFileSystemFactory(new FileSystemFactory() {
-			@Override
-			public FileSystemView createFileSystemView(Session session)
-					throws IOException {
-				return new FileSystemView() {
-					@Override
-					public SshFile getFile(SshFile baseDir, String file) {
-						return null;
-					}
-
-					@Override
-					public SshFile getFile(String file) {
-						return null;
-					}
-				};
-			}
-		});
-
-		setForwardingFilter(new ForwardingFilter() {
-			@Override
-			public boolean canForwardAgent(ServerSession session) {
-				return false;
-			}
-
-			@Override
-			public boolean canForwardX11(ServerSession session) {
-				return false;
-			}
-
-			@Override
-			public boolean canConnect(InetSocketAddress address,
-					ServerSession session) {
-				return false;
-			}
-
-			@Override
-			public boolean canListen(InetSocketAddress address,
-					ServerSession session) {
-				return false;
-			}
-		});
-
-		setUserAuthFactories(Arrays
-				.<NamedFactory<UserAuth>> asList(new UserAuthPublicKey.Factory()));
-	}
-
-	protected void setupCiphers() {
-		List<NamedFactory<Cipher>> avail = new LinkedList<NamedFactory<Cipher>>();
-		avail.add(new AES128CBC.Factory());
-		avail.add(new TripleDESCBC.Factory());
-		avail.add(new BlowfishCBC.Factory());
-		avail.add(new AES192CBC.Factory());
-		avail.add(new AES256CBC.Factory());
-
-		for (Iterator<NamedFactory<Cipher>> i = avail.iterator(); i.hasNext();) {
-			final NamedFactory<Cipher> f = i.next();
-			try {
-				final Cipher c = f.create();
-				final byte[] key = new byte[c.getBlockSize()];
-				final byte[] iv = new byte[c.getIVSize()];
-				c.init(Cipher.Mode.Encrypt, key, iv);
-			} catch (InvalidKeyException e) {
-				i.remove();
-			} catch (Exception e) {
-				i.remove();
-			}
-		}
-		setCipherFactories(avail);
 	}
 }

--
Gitblit v1.9.1