/*
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* Copyright 2011 gitblit.com.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.gitblit;
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import java.io.BufferedReader;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.net.InetAddress;
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import java.net.ServerSocket;
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import java.net.Socket;
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import java.net.URI;
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import java.net.URL;
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import java.net.UnknownHostException;
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import java.security.ProtectionDomain;
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import java.text.MessageFormat;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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import java.util.Properties;
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import java.util.Scanner;
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import org.apache.log4j.PropertyConfigurator;
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import org.eclipse.jetty.security.ConstraintMapping;
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import org.eclipse.jetty.security.ConstraintSecurityHandler;
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import org.eclipse.jetty.server.HttpConfiguration;
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import org.eclipse.jetty.server.HttpConnectionFactory;
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import org.eclipse.jetty.server.Server;
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import org.eclipse.jetty.server.ServerConnector;
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import org.eclipse.jetty.server.session.HashSessionManager;
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import org.eclipse.jetty.util.security.Constraint;
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import org.eclipse.jetty.util.thread.QueuedThreadPool;
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import org.eclipse.jetty.webapp.WebAppContext;
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import org.eclipse.jgit.storage.file.FileBasedConfig;
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import org.eclipse.jgit.util.FS;
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import org.eclipse.jgit.util.FileUtils;
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import org.kohsuke.args4j.CmdLineException;
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import org.kohsuke.args4j.CmdLineParser;
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import org.kohsuke.args4j.Option;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.gitblit.authority.GitblitAuthority;
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import com.gitblit.authority.NewCertificateConfig;
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import com.gitblit.servlet.GitblitContext;
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import com.gitblit.utils.StringUtils;
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import com.gitblit.utils.TimeUtils;
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import com.gitblit.utils.X509Utils;
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import com.gitblit.utils.X509Utils.X509Log;
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import com.gitblit.utils.X509Utils.X509Metadata;
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import com.unboundid.ldap.listener.InMemoryDirectoryServer;
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import com.unboundid.ldap.listener.InMemoryDirectoryServerConfig;
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import com.unboundid.ldap.listener.InMemoryListenerConfig;
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import com.unboundid.ldif.LDIFReader;
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/**
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* GitBlitServer is the embedded Jetty server for Gitblit GO. This class starts
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* and stops an instance of Jetty that is configured from a combination of the
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* gitblit.properties file and command line parameters. JCommander is used to
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* simplify command line parameter processing. This class also automatically
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* generates a self-signed certificate for localhost, if the keystore does not
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* already exist.
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*
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* @author James Moger
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*
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*/
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public class GitBlitServer {
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private static Logger logger;
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public static void main(String... args) {
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GitBlitServer server = new GitBlitServer();
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// filter out the baseFolder parameter
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List<String> filtered = new ArrayList<String>();
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String folder = "data";
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for (int i = 0; i < args.length; i++) {
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String arg = args[i];
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if (arg.equals("--baseFolder")) {
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if (i + 1 == args.length) {
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System.out.println("Invalid --baseFolder parameter!");
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System.exit(-1);
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} else if (!".".equals(args[i + 1])) {
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folder = args[i + 1];
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}
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i = i + 1;
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} else {
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filtered.add(arg);
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}
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}
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Params.baseFolder = folder;
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Params params = new Params();
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CmdLineParser parser = new CmdLineParser(params);
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try {
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parser.parseArgument(filtered);
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if (params.help) {
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server.usage(parser, null);
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}
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} catch (CmdLineException t) {
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server.usage(parser, t);
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}
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if (params.stop) {
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server.stop(params);
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} else {
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server.start(params);
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}
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}
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/**
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* Display the command line usage of Gitblit GO.
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*
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* @param parser
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* @param t
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*/
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protected final void usage(CmdLineParser parser, CmdLineException t) {
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System.out.println(Constants.BORDER);
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System.out.println(Constants.getGitBlitVersion());
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System.out.println(Constants.BORDER);
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System.out.println();
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if (t != null) {
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System.out.println(t.getMessage());
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System.out.println();
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}
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if (parser != null) {
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parser.printUsage(System.out);
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System.out
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.println("\nExample:\n java -server -Xmx1024M -jar gitblit.jar --repositoriesFolder c:\\git --httpPort 80 --httpsPort 443");
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}
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System.exit(0);
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}
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protected File getBaseFolder(Params params) {
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String path = System.getProperty("GITBLIT_HOME", Params.baseFolder);
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if (!StringUtils.isEmpty(System.getenv("GITBLIT_HOME"))) {
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path = System.getenv("GITBLIT_HOME");
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}
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return new File(path).getAbsoluteFile();
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}
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/**
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* Stop Gitblt GO.
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*/
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public void stop(Params params) {
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try {
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Socket s = new Socket(InetAddress.getByName("127.0.0.1"), params.shutdownPort);
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OutputStream out = s.getOutputStream();
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System.out.println("Sending Shutdown Request to " + Constants.NAME);
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out.write("\r\n".getBytes());
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out.flush();
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s.close();
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} catch (UnknownHostException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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/**
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* Start Gitblit GO.
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*/
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protected final void start(Params params) {
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final File baseFolder = getBaseFolder(params);
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FileSettings settings = params.FILESETTINGS;
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if (!StringUtils.isEmpty(params.settingsfile)) {
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if (new File(params.settingsfile).exists()) {
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settings = new FileSettings(params.settingsfile);
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}
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}
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if (params.dailyLogFile) {
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// Configure log4j for daily log file generation
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InputStream is = null;
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try {
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is = getClass().getResourceAsStream("/log4j.properties");
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Properties loggingProperties = new Properties();
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loggingProperties.load(is);
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loggingProperties.put("log4j.appender.R.File", new File(baseFolder, "logs/gitblit.log").getAbsolutePath());
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loggingProperties.put("log4j.rootCategory", "INFO, R");
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if (settings.getBoolean(Keys.web.debugMode, false)) {
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loggingProperties.put("log4j.logger.com.gitblit", "DEBUG");
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}
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PropertyConfigurator.configure(loggingProperties);
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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try {
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if (is != null) {
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is.close();
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}
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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logger = LoggerFactory.getLogger(GitBlitServer.class);
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logger.info("\n" + Constants.getASCIIArt());
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System.setProperty("java.awt.headless", "true");
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String osname = System.getProperty("os.name");
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String osversion = System.getProperty("os.version");
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logger.info("Running on " + osname + " (" + osversion + ")");
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QueuedThreadPool threadPool = new QueuedThreadPool();
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int maxThreads = settings.getInteger(Keys.server.threadPoolSize, 50);
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if (maxThreads > 0) {
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threadPool.setMaxThreads(maxThreads);
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}
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Server server = new Server(threadPool);
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server.setStopAtShutdown(true);
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// conditionally configure the https connector
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if (params.securePort > 0) {
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File certificatesConf = new File(baseFolder, X509Utils.CA_CONFIG);
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File serverKeyStore = new File(baseFolder, X509Utils.SERVER_KEY_STORE);
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File serverTrustStore = new File(baseFolder, X509Utils.SERVER_TRUST_STORE);
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File caRevocationList = new File(baseFolder, X509Utils.CA_REVOCATION_LIST);
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// generate CA & web certificates, create certificate stores
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X509Metadata metadata = new X509Metadata("localhost", params.storePassword);
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// set default certificate values from config file
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if (certificatesConf.exists()) {
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FileBasedConfig config = new FileBasedConfig(certificatesConf, FS.detect());
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try {
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config.load();
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} catch (Exception e) {
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logger.error("Error parsing " + certificatesConf, e);
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}
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NewCertificateConfig certificateConfig = NewCertificateConfig.KEY.parse(config);
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certificateConfig.update(metadata);
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}
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metadata.notAfter = new Date(System.currentTimeMillis() + 10*TimeUtils.ONEYEAR);
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X509Utils.prepareX509Infrastructure(metadata, baseFolder, new X509Log() {
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@Override
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public void log(String message) {
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BufferedWriter writer = null;
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try {
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writer = new BufferedWriter(new FileWriter(new File(baseFolder, X509Utils.CERTS + File.separator + "log.txt"), true));
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writer.write(MessageFormat.format("{0,date,yyyy-MM-dd HH:mm}: {1}", new Date(), message));
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writer.newLine();
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writer.flush();
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} catch (Exception e) {
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LoggerFactory.getLogger(GitblitAuthority.class).error("Failed to append log entry!", e);
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} finally {
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if (writer != null) {
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try {
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writer.close();
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} catch (IOException e) {
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}
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}
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}
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}
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});
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if (serverKeyStore.exists()) {
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/*
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* HTTPS
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*/
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logger.info("Setting up HTTPS transport on port " + params.securePort);
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GitblitSslContextFactory factory = new GitblitSslContextFactory(params.alias,
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serverKeyStore, serverTrustStore, params.storePassword, caRevocationList);
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if (params.requireClientCertificates) {
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factory.setNeedClientAuth(true);
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} else {
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factory.setWantClientAuth(true);
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}
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ServerConnector connector = new ServerConnector(server, factory);
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connector.setSoLingerTime(-1);
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connector.setIdleTimeout(30000);
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connector.setPort(params.securePort);
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String bindInterface = settings.getString(Keys.server.httpsBindInterface, null);
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if (!StringUtils.isEmpty(bindInterface)) {
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logger.warn(MessageFormat.format(
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"Binding HTTPS transport on port {0,number,0} to {1}", params.securePort,
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bindInterface));
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connector.setHost(bindInterface);
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}
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if (params.securePort < 1024 && !isWindows()) {
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logger.warn("Gitblit needs to run with ROOT permissions for ports < 1024!");
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}
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server.addConnector(connector);
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} else {
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logger.warn("Failed to find or load Keystore?");
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logger.warn("HTTPS transport DISABLED.");
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}
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}
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// conditionally configure the http transport
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if (params.port > 0) {
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/*
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* HTTP
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*/
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logger.info("Setting up HTTP transport on port " + params.port);
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HttpConfiguration httpConfig = new HttpConfiguration();
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if (params.port > 0 && params.securePort > 0 && settings.getBoolean(Keys.server.redirectToHttpsPort, true)) {
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httpConfig.setSecureScheme("https");
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httpConfig.setSecurePort(params.securePort);
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}
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httpConfig.setSendServerVersion(false);
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httpConfig.setSendDateHeader(false);
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ServerConnector connector = new ServerConnector(server, new HttpConnectionFactory(httpConfig));
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connector.setSoLingerTime(-1);
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connector.setIdleTimeout(30000);
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connector.setPort(params.port);
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String bindInterface = settings.getString(Keys.server.httpBindInterface, null);
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if (!StringUtils.isEmpty(bindInterface)) {
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logger.warn(MessageFormat.format("Binding HTTP transport on port {0,number,0} to {1}",
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params.port, bindInterface));
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connector.setHost(bindInterface);
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}
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if (params.port < 1024 && !isWindows()) {
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logger.warn("Gitblit needs to run with ROOT permissions for ports < 1024!");
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}
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server.addConnector(connector);
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}
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// tempDir is where the embedded Gitblit web application is expanded and
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// where Jetty creates any necessary temporary files
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File tempDir = com.gitblit.utils.FileUtils.resolveParameter(Constants.baseFolder$, baseFolder, params.temp);
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if (tempDir.exists()) {
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try {
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FileUtils.delete(tempDir, FileUtils.RECURSIVE | FileUtils.RETRY);
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} catch (IOException x) {
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logger.warn("Failed to delete temp dir " + tempDir.getAbsolutePath(), x);
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}
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}
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if (!tempDir.mkdirs()) {
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logger.warn("Failed to create temp dir " + tempDir.getAbsolutePath());
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}
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// Get the execution path of this class
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// We use this to set the WAR path.
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ProtectionDomain protectionDomain = GitBlitServer.class.getProtectionDomain();
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URL location = protectionDomain.getCodeSource().getLocation();
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// Root WebApp Context
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WebAppContext rootContext = new WebAppContext();
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rootContext.setContextPath(settings.getString(Keys.server.contextPath, "/"));
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rootContext.setServer(server);
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rootContext.setWar(location.toExternalForm());
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rootContext.setTempDirectory(tempDir);
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// Set cookies HttpOnly so they are not accessible to JavaScript engines
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HashSessionManager sessionManager = new HashSessionManager();
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sessionManager.setHttpOnly(true);
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// Use secure cookies if only serving https
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sessionManager.setSecureRequestOnly(params.port <= 0 && params.securePort > 0);
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rootContext.getSessionHandler().setSessionManager(sessionManager);
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// Ensure there is a defined User Service
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String realmUsers = params.userService;
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if (StringUtils.isEmpty(realmUsers)) {
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logger.error(MessageFormat.format("PLEASE SPECIFY {0}!!", Keys.realm.userService));
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return;
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}
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// Override settings from the command-line
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settings.overrideSetting(Keys.realm.userService, params.userService);
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settings.overrideSetting(Keys.git.repositoriesFolder, params.repositoriesFolder);
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settings.overrideSetting(Keys.git.daemonPort, params.gitPort);
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settings.overrideSetting(Keys.git.sshPort, params.sshPort);
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// Start up an in-memory LDAP server, if configured
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try {
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if (!StringUtils.isEmpty(params.ldapLdifFile)) {
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File ldifFile = new File(params.ldapLdifFile);
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if (ldifFile != null && ldifFile.exists()) {
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URI ldapUrl = new URI(settings.getRequiredString(Keys.realm.ldap.server));
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String firstLine = new Scanner(ldifFile).nextLine();
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String rootDN = firstLine.substring(4);
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String bindUserName = settings.getString(Keys.realm.ldap.username, "");
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String bindPassword = settings.getString(Keys.realm.ldap.password, "");
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// Get the port
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int port = ldapUrl.getPort();
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if (port == -1)
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port = 389;
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InMemoryDirectoryServerConfig config = new InMemoryDirectoryServerConfig(rootDN);
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config.addAdditionalBindCredentials(bindUserName, bindPassword);
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config.setListenerConfigs(InMemoryListenerConfig.createLDAPConfig("default", port));
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config.setSchema(null);
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InMemoryDirectoryServer ds = new InMemoryDirectoryServer(config);
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ds.importFromLDIF(true, new LDIFReader(ldifFile));
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ds.startListening();
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logger.info("LDAP Server started at ldap://localhost:" + port);
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}
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}
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} catch (Exception e) {
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// Completely optional, just show a warning
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logger.warn("Unable to start LDAP server", e);
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}
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// Set the server's contexts
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server.setHandler(rootContext);
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// redirect HTTP requests to HTTPS
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if (params.port > 0 && params.securePort > 0 && settings.getBoolean(Keys.server.redirectToHttpsPort, true)) {
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logger.info(String.format("Configuring automatic http(%1$s) -> https(%2$s) redirects", params.port, params.securePort));
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// Create the internal mechanisms to handle secure connections and redirects
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Constraint constraint = new Constraint();
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constraint.setDataConstraint(Constraint.DC_CONFIDENTIAL);
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ConstraintMapping cm = new ConstraintMapping();
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cm.setConstraint(constraint);
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cm.setPathSpec("/*");
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ConstraintSecurityHandler sh = new ConstraintSecurityHandler();
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sh.setConstraintMappings(new ConstraintMapping[] { cm });
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// Configure this context to use the Security Handler defined before
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rootContext.setHandler(sh);
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}
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// Setup the Gitblit context
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GitblitContext gitblit = newGitblit(settings, baseFolder);
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rootContext.addEventListener(gitblit);
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try {
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// start the shutdown monitor
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if (params.shutdownPort > 0) {
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Thread shutdownMonitor = new ShutdownMonitorThread(server, params);
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shutdownMonitor.start();
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}
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// start Jetty
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server.start();
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server.join();
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} catch (Exception e) {
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e.printStackTrace();
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System.exit(100);
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}
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}
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protected GitblitContext newGitblit(IStoredSettings settings, File baseFolder) {
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return new GitblitContext(settings, baseFolder);
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}
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/**
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* Tests to see if the operating system is Windows.
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*
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* @return true if this is a windows machine
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*/
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private boolean isWindows() {
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return System.getProperty("os.name").toLowerCase().indexOf("windows") > -1;
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}
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/**
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* The ShutdownMonitorThread opens a socket on a specified port and waits
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* for an incoming connection. When that connection is accepted a shutdown
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* message is issued to the running Jetty server.
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*
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* @author James Moger
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*
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*/
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private static class ShutdownMonitorThread extends Thread {
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private final ServerSocket socket;
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private final Server server;
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private final Logger logger = LoggerFactory.getLogger(ShutdownMonitorThread.class);
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public ShutdownMonitorThread(Server server, Params params) {
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this.server = server;
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setDaemon(true);
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setName(Constants.NAME + " Shutdown Monitor");
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ServerSocket skt = null;
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try {
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skt = new ServerSocket(params.shutdownPort, 1, InetAddress.getByName("127.0.0.1"));
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} catch (Exception e) {
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logger.warn("Could not open shutdown monitor on port " + params.shutdownPort, e);
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}
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socket = skt;
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}
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@Override
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public void run() {
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logger.info("Shutdown Monitor listening on port " + socket.getLocalPort());
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Socket accept;
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try {
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accept = socket.accept();
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BufferedReader reader = new BufferedReader(new InputStreamReader(
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accept.getInputStream()));
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reader.readLine();
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logger.info(Constants.BORDER);
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logger.info("Stopping " + Constants.NAME);
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logger.info(Constants.BORDER);
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server.stop();
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server.setStopAtShutdown(false);
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accept.close();
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socket.close();
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} catch (Exception e) {
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logger.warn("Failed to shutdown Jetty", e);
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}
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}
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}
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/**
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* Parameters class for GitBlitServer.
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*/
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public static class Params {
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public static String baseFolder;
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private final FileSettings FILESETTINGS = new FileSettings(new File(baseFolder, Constants.PROPERTIES_FILE).getAbsolutePath());
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/*
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* Server parameters
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*/
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@Option(name = "--help", aliases = { "-h"}, usage = "Show this help")
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public Boolean help = false;
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@Option(name = "--stop", usage = "Stop Server")
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public Boolean stop = false;
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@Option(name = "--tempFolder", usage = "Folder for server to extract built-in webapp", metaVar="PATH")
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public String temp = FILESETTINGS.getString(Keys.server.tempFolder, "temp");
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@Option(name = "--dailyLogFile", usage = "Log to a rolling daily log file INSTEAD of stdout.")
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public Boolean dailyLogFile = false;
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/*
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* GIT Servlet Parameters
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*/
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@Option(name = "--repositoriesFolder", usage = "Git Repositories Folder", metaVar="PATH")
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public String repositoriesFolder = FILESETTINGS.getString(Keys.git.repositoriesFolder,
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"git");
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/*
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* Authentication Parameters
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*/
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@Option(name = "--userService", usage = "Authentication and Authorization Service (filename or fully qualified classname)")
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public String userService = FILESETTINGS.getString(Keys.realm.userService,
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"users.conf");
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/*
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* JETTY Parameters
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*/
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@Option(name = "--httpPort", usage = "HTTP port for to serve. (port <= 0 will disable this connector)", metaVar="PORT")
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public Integer port = FILESETTINGS.getInteger(Keys.server.httpPort, 0);
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@Option(name = "--httpsPort", usage = "HTTPS port to serve. (port <= 0 will disable this connector)", metaVar="PORT")
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public Integer securePort = FILESETTINGS.getInteger(Keys.server.httpsPort, 8443);
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@Option(name = "--gitPort", usage = "Git Daemon port to serve. (port <= 0 will disable this connector)", metaVar="PORT")
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public Integer gitPort = FILESETTINGS.getInteger(Keys.git.daemonPort, 9418);
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@Option(name = "--sshPort", usage = "Git SSH port to serve. (port <= 0 will disable this connector)", metaVar = "PORT")
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public Integer sshPort = FILESETTINGS.getInteger(Keys.git.sshPort, 29418);
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@Option(name = "--alias", usage = "Alias of SSL certificate in keystore for serving https.", metaVar="ALIAS")
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public String alias = FILESETTINGS.getString(Keys.server.certificateAlias, "");
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@Option(name = "--storePassword", usage = "Password for SSL (https) keystore.", metaVar="PASSWORD")
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public String storePassword = FILESETTINGS.getString(Keys.server.storePassword, "");
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@Option(name = "--shutdownPort", usage = "Port for Shutdown Monitor to listen on. (port <= 0 will disable this monitor)", metaVar="PORT")
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public Integer shutdownPort = FILESETTINGS.getInteger(Keys.server.shutdownPort, 8081);
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@Option(name = "--requireClientCertificates", usage = "Require client X509 certificates for https connections.")
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public Boolean requireClientCertificates = FILESETTINGS.getBoolean(Keys.server.requireClientCertificates, false);
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/*
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* Setting overrides
|
*/
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@Option(name = "--settings", usage = "Path to alternative settings", metaVar="FILE")
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public String settingsfile;
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@Option(name = "--ldapLdifFile", usage = "Path to LDIF file. This will cause an in-memory LDAP server to be started according to gitblit settings", metaVar="FILE")
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public String ldapLdifFile;
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}
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}
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