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- /*
- * Copyright (C) 2008-2009, Google Inc.
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * - Neither the name of the Eclipse Foundation, Inc. nor the
- * names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
- package org.eclipse.jgit.transport;
-
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.InterruptedIOException;
- import java.io.OutputStream;
- import java.net.InetAddress;
- import java.net.InetSocketAddress;
- import java.net.ServerSocket;
- import java.net.Socket;
- import java.net.SocketAddress;
-
- import org.eclipse.jgit.errors.RepositoryNotFoundException;
- import org.eclipse.jgit.internal.JGitText;
- import org.eclipse.jgit.lib.PersonIdent;
- import org.eclipse.jgit.lib.Repository;
- import org.eclipse.jgit.storage.pack.PackConfig;
- import org.eclipse.jgit.transport.resolver.ReceivePackFactory;
- import org.eclipse.jgit.transport.resolver.RepositoryResolver;
- import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
- import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
- import org.eclipse.jgit.transport.resolver.UploadPackFactory;
-
- /** Basic daemon for the anonymous <code>git://</code> transport protocol. */
- public class Daemon {
- /** 9418: IANA assigned port number for Git. */
- public static final int DEFAULT_PORT = 9418;
-
- private static final int BACKLOG = 5;
-
- private InetSocketAddress myAddress;
-
- private final DaemonService[] services;
-
- private final ThreadGroup processors;
-
- private boolean run;
-
- private Thread acceptThread;
-
- private int timeout;
-
- private PackConfig packConfig;
-
- private volatile RepositoryResolver<DaemonClient> repositoryResolver;
-
- private volatile UploadPackFactory<DaemonClient> uploadPackFactory;
-
- private volatile ReceivePackFactory<DaemonClient> receivePackFactory;
-
- /** Configure a daemon to listen on any available network port. */
- public Daemon() {
- this(null);
- }
-
- /**
- * Configure a new daemon for the specified network address.
- *
- * @param addr
- * address to listen for connections on. If null, any available
- * port will be chosen on all network interfaces.
- */
- public Daemon(final InetSocketAddress addr) {
- myAddress = addr;
- processors = new ThreadGroup("Git-Daemon");
-
- repositoryResolver = (RepositoryResolver<DaemonClient>) RepositoryResolver.NONE;
-
- uploadPackFactory = new UploadPackFactory<DaemonClient>() {
- public UploadPack create(DaemonClient req, Repository db)
- throws ServiceNotEnabledException,
- ServiceNotAuthorizedException {
- UploadPack up = new UploadPack(db);
- up.setTimeout(getTimeout());
- up.setPackConfig(getPackConfig());
- return up;
- }
- };
-
- receivePackFactory = new ReceivePackFactory<DaemonClient>() {
- public ReceivePack create(DaemonClient req, Repository db)
- throws ServiceNotEnabledException,
- ServiceNotAuthorizedException {
- ReceivePack rp = new ReceivePack(db);
-
- InetAddress peer = req.getRemoteAddress();
- String host = peer.getCanonicalHostName();
- if (host == null)
- host = peer.getHostAddress();
- String name = "anonymous";
- String email = name + "@" + host;
- rp.setRefLogIdent(new PersonIdent(name, email));
- rp.setTimeout(getTimeout());
-
- return rp;
- }
- };
-
- services = new DaemonService[] {
- new DaemonService("upload-pack", "uploadpack") {
- {
- setEnabled(true);
- }
-
- @Override
- protected void execute(final DaemonClient dc,
- final Repository db) throws IOException,
- ServiceNotEnabledException,
- ServiceNotAuthorizedException {
- UploadPack up = uploadPackFactory.create(dc, db);
- InputStream in = dc.getInputStream();
- OutputStream out = dc.getOutputStream();
- up.upload(in, out, null);
- }
- }, new DaemonService("receive-pack", "receivepack") {
- {
- setEnabled(false);
- }
-
- @Override
- protected void execute(final DaemonClient dc,
- final Repository db) throws IOException,
- ServiceNotEnabledException,
- ServiceNotAuthorizedException {
- ReceivePack rp = receivePackFactory.create(dc, db);
- InputStream in = dc.getInputStream();
- OutputStream out = dc.getOutputStream();
- rp.receive(in, out, null);
- }
- } };
- }
-
- /** @return the address connections are received on. */
- public synchronized InetSocketAddress getAddress() {
- return myAddress;
- }
-
- /**
- * Lookup a supported service so it can be reconfigured.
- *
- * @param name
- * name of the service; e.g. "receive-pack"/"git-receive-pack" or
- * "upload-pack"/"git-upload-pack".
- * @return the service; null if this daemon implementation doesn't support
- * the requested service type.
- */
- public synchronized DaemonService getService(String name) {
- if (!name.startsWith("git-"))
- name = "git-" + name;
- for (final DaemonService s : services) {
- if (s.getCommandName().equals(name))
- return s;
- }
- return null;
- }
-
- /** @return timeout (in seconds) before aborting an IO operation. */
- public int getTimeout() {
- return timeout;
- }
-
- /**
- * Set the timeout before willing to abort an IO call.
- *
- * @param seconds
- * number of seconds to wait (with no data transfer occurring)
- * before aborting an IO read or write operation with the
- * connected client.
- */
- public void setTimeout(final int seconds) {
- timeout = seconds;
- }
-
- /** @return configuration controlling packing, may be null. */
- public PackConfig getPackConfig() {
- return packConfig;
- }
-
- /**
- * Set the configuration used by the pack generator.
- *
- * @param pc
- * configuration controlling packing parameters. If null the
- * source repository's settings will be used.
- */
- public void setPackConfig(PackConfig pc) {
- this.packConfig = pc;
- }
-
- /**
- * Set the resolver used to locate a repository by name.
- *
- * @param resolver
- * the resolver instance.
- */
- public void setRepositoryResolver(RepositoryResolver<DaemonClient> resolver) {
- repositoryResolver = resolver;
- }
-
- /**
- * Set the factory to construct and configure per-request UploadPack.
- *
- * @param factory
- * the factory. If null upload-pack is disabled.
- */
- @SuppressWarnings("unchecked")
- public void setUploadPackFactory(UploadPackFactory<DaemonClient> factory) {
- if (factory != null)
- uploadPackFactory = factory;
- else
- uploadPackFactory = (UploadPackFactory<DaemonClient>) UploadPackFactory.DISABLED;
- }
-
- /**
- * Set the factory to construct and configure per-request ReceivePack.
- *
- * @param factory
- * the factory. If null receive-pack is disabled.
- */
- @SuppressWarnings("unchecked")
- public void setReceivePackFactory(ReceivePackFactory<DaemonClient> factory) {
- if (factory != null)
- receivePackFactory = factory;
- else
- receivePackFactory = (ReceivePackFactory<DaemonClient>) ReceivePackFactory.DISABLED;
- }
-
- /**
- * Start this daemon on a background thread.
- *
- * @throws IOException
- * the server socket could not be opened.
- * @throws IllegalStateException
- * the daemon is already running.
- */
- public synchronized void start() throws IOException {
- if (acceptThread != null)
- throw new IllegalStateException(JGitText.get().daemonAlreadyRunning);
-
- final ServerSocket listenSock = new ServerSocket(
- myAddress != null ? myAddress.getPort() : 0, BACKLOG,
- myAddress != null ? myAddress.getAddress() : null);
- myAddress = (InetSocketAddress) listenSock.getLocalSocketAddress();
-
- run = true;
- acceptThread = new Thread(processors, "Git-Daemon-Accept") {
- public void run() {
- while (isRunning()) {
- try {
- startClient(listenSock.accept());
- } catch (InterruptedIOException e) {
- // Test again to see if we should keep accepting.
- } catch (IOException e) {
- break;
- }
- }
-
- try {
- listenSock.close();
- } catch (IOException err) {
- //
- } finally {
- synchronized (Daemon.this) {
- acceptThread = null;
- }
- }
- }
- };
- acceptThread.start();
- }
-
- /** @return true if this daemon is receiving connections. */
- public synchronized boolean isRunning() {
- return run;
- }
-
- /** Stop this daemon. */
- public synchronized void stop() {
- if (acceptThread != null) {
- run = false;
- acceptThread.interrupt();
- }
- }
-
- private void startClient(final Socket s) {
- final DaemonClient dc = new DaemonClient(this);
-
- final SocketAddress peer = s.getRemoteSocketAddress();
- if (peer instanceof InetSocketAddress)
- dc.setRemoteAddress(((InetSocketAddress) peer).getAddress());
-
- new Thread(processors, "Git-Daemon-Client " + peer.toString()) {
- public void run() {
- try {
- dc.execute(s);
- } catch (ServiceNotEnabledException e) {
- // Ignored. Client cannot use this repository.
- } catch (ServiceNotAuthorizedException e) {
- // Ignored. Client cannot use this repository.
- } catch (IOException e) {
- // Ignore unexpected IO exceptions from clients
- } finally {
- try {
- s.getInputStream().close();
- } catch (IOException e) {
- // Ignore close exceptions
- }
- try {
- s.getOutputStream().close();
- } catch (IOException e) {
- // Ignore close exceptions
- }
- }
- }
- }.start();
- }
-
- synchronized DaemonService matchService(final String cmd) {
- for (final DaemonService d : services) {
- if (d.handles(cmd))
- return d;
- }
- return null;
- }
-
- Repository openRepository(DaemonClient client, String name)
- throws ServiceMayNotContinueException {
- // Assume any attempt to use \ was by a Windows client
- // and correct to the more typical / used in Git URIs.
- //
- name = name.replace('\\', '/');
-
- // git://thishost/path should always be name="/path" here
- //
- if (!name.startsWith("/"))
- return null;
-
- try {
- return repositoryResolver.open(client, name.substring(1));
- } catch (RepositoryNotFoundException e) {
- // null signals it "wasn't found", which is all that is suitable
- // for the remote client to know.
- return null;
- } catch (ServiceNotAuthorizedException e) {
- // null signals it "wasn't found", which is all that is suitable
- // for the remote client to know.
- return null;
- } catch (ServiceNotEnabledException e) {
- // null signals it "wasn't found", which is all that is suitable
- // for the remote client to know.
- return null;
- }
- }
- }
|