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1   /*
2    * Copyright (C) 2008-2009, Google Inc.
3    * and other copyright owners as documented in the project's IP log.
4    *
5    * This program and the accompanying materials are made available
6    * under the terms of the Eclipse Distribution License v1.0 which
7    * accompanies this distribution, is reproduced below, and is
8    * available at http://www.eclipse.org/org/documents/edl-v10.php
9    *
10   * All rights reserved.
11   *
12   * Redistribution and use in source and binary forms, with or
13   * without modification, are permitted provided that the following
14   * conditions are met:
15   *
16   * - Redistributions of source code must retain the above copyright
17   *   notice, this list of conditions and the following disclaimer.
18   *
19   * - Redistributions in binary form must reproduce the above
20   *   copyright notice, this list of conditions and the following
21   *   disclaimer in the documentation and/or other materials provided
22   *   with the distribution.
23   *
24   * - Neither the name of the Eclipse Foundation, Inc. nor the
25   *   names of its contributors may be used to endorse or promote
26   *   products derived from this software without specific prior
27   *   written permission.
28   *
29   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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38   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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40   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42   */
43  
44  package org.eclipse.jgit.pgm;
45  
46  import java.io.File;
47  import java.net.InetSocketAddress;
48  import java.net.URISyntaxException;
49  import java.text.MessageFormat;
50  import java.util.ArrayList;
51  import java.util.List;
52  import java.util.concurrent.Executors;
53  
54  import org.eclipse.jgit.internal.ketch.KetchLeader;
55  import org.eclipse.jgit.internal.ketch.KetchLeaderCache;
56  import org.eclipse.jgit.internal.ketch.KetchPreReceive;
57  import org.eclipse.jgit.internal.ketch.KetchSystem;
58  import org.eclipse.jgit.internal.ketch.KetchText;
59  import org.eclipse.jgit.lib.Repository;
60  import org.eclipse.jgit.pgm.internal.CLIText;
61  import org.eclipse.jgit.storage.file.FileBasedConfig;
62  import org.eclipse.jgit.storage.file.WindowCacheConfig;
63  import org.eclipse.jgit.storage.pack.PackConfig;
64  import org.eclipse.jgit.transport.DaemonClient;
65  import org.eclipse.jgit.transport.DaemonService;
66  import org.eclipse.jgit.transport.ReceivePack;
67  import org.eclipse.jgit.transport.resolver.FileResolver;
68  import org.eclipse.jgit.transport.resolver.ReceivePackFactory;
69  import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
70  import org.eclipse.jgit.util.FS;
71  import org.kohsuke.args4j.Argument;
72  import org.kohsuke.args4j.Option;
73  
74  @Command(common = true, usage = "usage_exportRepositoriesOverGit")
75  class Daemon extends TextBuiltin {
76  	@Option(name = "--config-file", metaVar = "metaVar_configFile", usage = "usage_configFile")
77  	File configFile;
78  
79  	@Option(name = "--port", metaVar = "metaVar_port", usage = "usage_portNumberToListenOn")
80  	int port = org.eclipse.jgit.transport.Daemon.DEFAULT_PORT;
81  
82  	@Option(name = "--listen", metaVar = "metaVar_hostName", usage = "usage_hostnameOrIpToListenOn")
83  	String host;
84  
85  	@Option(name = "--timeout", metaVar = "metaVar_seconds", usage = "usage_abortConnectionIfNoActivity")
86  	int timeout = -1;
87  
88  	@Option(name = "--enable", metaVar = "metaVar_service", usage = "usage_enableTheServiceInAllRepositories")
89  	List<String> enable = new ArrayList<>();
90  
91  	@Option(name = "--disable", metaVar = "metaVar_service", usage = "usage_disableTheServiceInAllRepositories")
92  	List<String> disable = new ArrayList<>();
93  
94  	@Option(name = "--allow-override", metaVar = "metaVar_service", usage = "usage_configureTheServiceInDaemonServicename")
95  	List<String> canOverride = new ArrayList<>();
96  
97  	@Option(name = "--forbid-override", metaVar = "metaVar_service", usage = "usage_configureTheServiceInDaemonServicename")
98  	List<String> forbidOverride = new ArrayList<>();
99  
100 	@Option(name = "--export-all", usage = "usage_exportWithoutGitDaemonExportOk")
101 	boolean exportAll;
102 
103 	@Option(name = "--ketch", metaVar = "metaVar_ketchServerType", usage = "usage_ketchServerType")
104 	KetchServerType ketchServerType;
105 
106 	enum KetchServerType {
107 		LEADER;
108 	}
109 
110 	@Argument(required = true, metaVar = "metaVar_directory", usage = "usage_directoriesToExport")
111 	List<File> directory = new ArrayList<>();
112 
113 	/** {@inheritDoc} */
114 	@Override
115 	protected boolean requiresRepository() {
116 		return false;
117 	}
118 
119 	/** {@inheritDoc} */
120 	@Override
121 	protected void run() throws Exception {
122 		PackConfig packConfig = new PackConfig();
123 
124 		if (configFile != null) {
125 			if (!configFile.exists()) {
126 				throw die(MessageFormat.format(
127 						CLIText.get().configFileNotFound, //
128 						configFile.getAbsolutePath()));
129 			}
130 
131 			FileBasedConfig cfg = new FileBasedConfig(configFile, FS.DETECTED);
132 			cfg.load();
133 			new WindowCacheConfig().fromConfig(cfg).install();
134 			packConfig.fromConfig(cfg);
135 		}
136 
137 		int threads = packConfig.getThreads();
138 		if (threads <= 0)
139 			threads = Runtime.getRuntime().availableProcessors();
140 		if (1 < threads)
141 			packConfig.setExecutor(Executors.newFixedThreadPool(threads));
142 
143 		final FileResolver<DaemonClient> resolver = new FileResolver<>();
144 		for (File f : directory) {
145 			outw.println(MessageFormat.format(CLIText.get().exporting, f.getAbsolutePath()));
146 			resolver.exportDirectory(f);
147 		}
148 		resolver.setExportAll(exportAll);
149 
150 		final org.eclipse.jgit.transport.Daemon d;
151 		d = new org.eclipse.jgit.transport.Daemon(
152 				host != null ? new InetSocketAddress(host, port)
153 						: new InetSocketAddress(port));
154 		d.setPackConfig(packConfig);
155 		d.setRepositoryResolver(resolver);
156 		if (0 <= timeout)
157 			d.setTimeout(timeout);
158 
159 		for (String n : enable)
160 			service(d, n).setEnabled(true);
161 		for (String n : disable)
162 			service(d, n).setEnabled(false);
163 
164 		for (String n : canOverride)
165 			service(d, n).setOverridable(true);
166 		for (String n : forbidOverride)
167 			service(d, n).setOverridable(false);
168 		if (ketchServerType == KetchServerType.LEADER) {
169 			startKetchLeader(d);
170 		}
171 		d.start();
172 		outw.println(MessageFormat.format(CLIText.get().listeningOn, d.getAddress()));
173 	}
174 
175 	private static DaemonService service(
176 			final org.eclipse.jgit.transport.Daemon d,
177 			final String n) {
178 		final DaemonService svc = d.getService(n);
179 		if (svc == null)
180 			throw die(MessageFormat.format(CLIText.get().serviceNotSupported, n));
181 		return svc;
182 	}
183 
184 	private void startKetchLeader(org.eclipse.jgit.transport.Daemon daemon) {
185 		KetchSystem system = new KetchSystem();
186 		final KetchLeaderCacheaderCache.html#KetchLeaderCache">KetchLeaderCache leaders = new KetchLeaderCache(system);
187 		final ReceivePackFactory<DaemonClient> factory;
188 
189 		factory = daemon.getReceivePackFactory();
190 		daemon.setReceivePackFactory((DaemonClient req, Repository repo) -> {
191 			ReceivePack rp = factory.create(req, repo);
192 			KetchLeader leader;
193 			try {
194 				leader = leaders.get(repo);
195 			} catch (URISyntaxException err) {
196 				throw new ServiceNotEnabledException(
197 						KetchText.get().invalidFollowerUri, err);
198 			}
199 			rp.setPreReceiveHook(new KetchPreReceive(leader));
200 			return rp;
201 		});
202 	}
203 }