From 5eafd9b6f046a03eca0576ae14673be674b9ce01 Mon Sep 17 00:00:00 2001
From: David Ostrovsky <david@ostrovsky.org>
Date: Thu, 10 Apr 2014 18:58:08 -0400
Subject: [PATCH] Add set account SSH command

---
 src/main/java/com/gitblit/transport/ssh/SshDaemon.java |  113 +++++++++++++++++++++++++++++++++++++++++++++++++-------
 1 files changed, 98 insertions(+), 15 deletions(-)

diff --git a/src/main/java/com/gitblit/transport/ssh/SshDaemon.java b/src/main/java/com/gitblit/transport/ssh/SshDaemon.java
index dd4a2d8..f2e1db7 100644
--- a/src/main/java/com/gitblit/transport/ssh/SshDaemon.java
+++ b/src/main/java/com/gitblit/transport/ssh/SshDaemon.java
@@ -21,7 +21,15 @@
 import java.text.MessageFormat;
 import java.util.concurrent.atomic.AtomicBoolean;
 
+import javax.inject.Singleton;
+
 import org.apache.sshd.SshServer;
+import org.apache.sshd.common.io.IoServiceFactory;
+import org.apache.sshd.common.io.IoServiceFactoryFactory;
+import org.apache.sshd.common.io.mina.MinaServiceFactory;
+import org.apache.sshd.common.io.mina.MinaServiceFactoryFactory;
+import org.apache.sshd.common.io.nio2.Nio2ServiceFactory;
+import org.apache.sshd.common.io.nio2.Nio2ServiceFactoryFactory;
 import org.apache.sshd.server.keyprovider.PEMGeneratorHostKeyProvider;
 import org.eclipse.jgit.internal.JGitText;
 import org.slf4j.Logger;
@@ -35,14 +43,21 @@
 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.Receive;
+import com.gitblit.transport.ssh.commands.SetAccountCommand;
+import com.gitblit.transport.ssh.commands.Upload;
 import com.gitblit.transport.ssh.commands.VersionCommand;
 import com.gitblit.utils.IdGenerator;
 import com.gitblit.utils.StringUtils;
 import com.gitblit.utils.WorkQueue;
 
+import dagger.Module;
+import dagger.ObjectGraph;
+import dagger.Provides;
+
 /**
  * Manager for the ssh transport. Roughly analogous to the
- * {@link com.gitblit.git.GitDaemon} class.
+ * {@link com.gitblit.transport.git.GitDaemon} class.
  *
  * @author Eric Myhre
  *
@@ -51,6 +66,10 @@
 
 	private final Logger log = LoggerFactory.getLogger(SshDaemon.class);
 
+	public static enum SshSessionBackend {
+		MINA, NIO2
+	}
+	
 	/**
 	 * 22: IANA assigned port number for ssh. Note that this is a distinct
 	 * concept from gitblit's default conf for ssh port -- this "default" is
@@ -63,12 +82,9 @@
 
 	private final AtomicBoolean run;
 
-	@SuppressWarnings("unused")
 	private final IGitblit gitblit;
-
-	private final IdGenerator idGenerator;
-
 	private final SshServer sshd;
+	private final ObjectGraph injector;
 
 	/**
 	 * Construct the Gitblit SSH daemon.
@@ -77,13 +93,23 @@
 	 */
 	public SshDaemon(IGitblit gitblit, IdGenerator idGenerator) {
 		this.gitblit = gitblit;
-		this.idGenerator = idGenerator;
-
+		this.injector = ObjectGraph.create(new SshModule());
+		
 		IStoredSettings settings = gitblit.getSettings();
 		int port = settings.getInteger(Keys.git.sshPort, 0);
 		String bindInterface = settings.getString(Keys.git.sshBindInterface,
 				"localhost");
 
+		IKeyManager keyManager = getKeyManager();
+
+		String sshBackendStr = settings.getString(Keys.git.sshBackend,
+				SshSessionBackend.NIO2.name());
+		SshSessionBackend backend = SshSessionBackend.valueOf(sshBackendStr);
+		System.setProperty(IoServiceFactoryFactory.class.getName(),
+		    backend == SshSessionBackend.MINA
+		    	? MinaServiceFactoryFactory.class.getName()
+		    	: Nio2ServiceFactoryFactory.class.getName());
+		
 		InetSocketAddress addr;
 		if (StringUtils.isEmpty(bindInterface)) {
 			addr = new InetSocketAddress(port);
@@ -91,30 +117,40 @@
 			addr = new InetSocketAddress(bindInterface, port);
 		}
 
+		SshKeyAuthenticator publickeyAuthenticator = new SshKeyAuthenticator(
+				keyManager, gitblit);
 		sshd = SshServer.setUpDefaultServer();
 		sshd.setPort(addr.getPort());
 		sshd.setHost(addr.getHostName());
 		sshd.setKeyPairProvider(new PEMGeneratorHostKeyProvider(new File(
 				gitblit.getBaseFolder(), HOST_KEY_STORE).getPath()));
-		sshd.setPublickeyAuthenticator(new SshKeyAuthenticator(gitblit));
+		sshd.setPublickeyAuthenticator(publickeyAuthenticator);
 		sshd.setPasswordAuthenticator(new SshPasswordAuthenticator(gitblit));
 		sshd.setSessionFactory(new SshSessionFactory(idGenerator));
 		sshd.setFileSystemFactory(new DisabledFilesystemFactory());
-		sshd.setForwardingFilter(new NonForwardingFilter());
+		sshd.setTcpipForwardingFilter(new NonForwardingFilter());
 
 		DispatchCommand gitblitCmd = new DispatchCommand();
 		gitblitCmd.registerCommand(CreateRepository.class);
 		gitblitCmd.registerCommand(VersionCommand.class);
+		gitblitCmd.registerCommand(SetAccountCommand.class);
 
-		DispatchCommand dispatcher = new DispatchCommand();
-		dispatcher.registerDispatcher("gitblit", gitblitCmd);
+		DispatchCommand gitCmd = new DispatchCommand();
+		gitCmd.registerCommand(Upload.class);
+		gitCmd.registerCommand(Receive.class);
+
+		DispatchCommand root = new DispatchCommand();
+		root.registerDispatcher("gitblit", gitblitCmd);
+		root.registerDispatcher("git", gitCmd);
+
+		root.setRepositoryResolver(new RepositoryResolver<SshSession>(gitblit));
+		root.setUploadPackFactory(new GitblitUploadPackFactory<SshSession>(gitblit));
+		root.setReceivePackFactory(new GitblitReceivePackFactory<SshSession>(gitblit));
+		root.setAuthenticator(publickeyAuthenticator);
 
 		SshCommandFactory commandFactory = new SshCommandFactory(
-				new RepositoryResolver<SshSession>(gitblit),
-				new GitblitUploadPackFactory<SshSession>(gitblit),
-				new GitblitReceivePackFactory<SshSession>(gitblit),
 				new WorkQueue(idGenerator),
-				dispatcher);
+				root);
 
 		sshd.setCommandFactory(commandFactory);
 
@@ -172,4 +208,51 @@
 			}
 		}
 	}
+	
+	protected IKeyManager getKeyManager() {
+		IKeyManager keyManager = null;
+		IStoredSettings settings = gitblit.getSettings();
+		String clazz = settings.getString(Keys.git.sshKeysManager, FileKeyManager.class.getName());
+		if (StringUtils.isEmpty(clazz)) {
+			clazz = FileKeyManager.class.getName();
+		}		
+		try {
+			Class<? extends IKeyManager> managerClass = (Class<? extends IKeyManager>) Class.forName(clazz);
+			keyManager = injector.get(managerClass).start();
+			if (keyManager.isReady()) {
+				log.info("{} is ready.", keyManager);
+			} else {
+				log.warn("{} is disabled.", keyManager);
+			}
+		} catch (Exception e) {
+			log.error("failed to create ssh key manager " + clazz, e);
+			keyManager = injector.get(NullKeyManager.class).start();
+		}
+		return keyManager;
+	}
+	
+	/**
+	 * A nested Dagger graph is used for constructor dependency injection of
+	 * complex classes.
+	 *
+	 * @author James Moger
+	 *
+	 */
+	@Module(
+			library = true,
+			injects = {
+					NullKeyManager.class,
+					FileKeyManager.class
+			}
+			)
+	class SshModule {
+
+		@Provides @Singleton NullKeyManager provideNullKeyManager() {
+			return new NullKeyManager();
+		}
+		
+		@Provides @Singleton FileKeyManager provideFileKeyManager() {
+			return new FileKeyManager(SshDaemon.this.gitblit);
+		}
+	}
 }

--
Gitblit v1.9.1