diff options
Diffstat (limited to 'src/main/java/com/gitblit/git/GitDaemonService.java')
| -rw-r--r-- | src/main/java/com/gitblit/git/GitDaemonService.java | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/main/java/com/gitblit/git/GitDaemonService.java b/src/main/java/com/gitblit/git/GitDaemonService.java new file mode 100644 index 00000000..03c4e1cd --- /dev/null +++ b/src/main/java/com/gitblit/git/GitDaemonService.java @@ -0,0 +1,165 @@ +package com.gitblit.git;
+
+/*
+ * Copyright (C) 2008-2009, Google Inc.
+ * Copyright (C) 2009, Robin Rosenberg <robin.rosenberg@dewire.com>
+ * 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.
+ */
+
+import java.io.IOException;
+
+import org.eclipse.jgit.lib.Config;
+import org.eclipse.jgit.lib.Config.SectionParser;
+import org.eclipse.jgit.lib.Repository;
+import org.eclipse.jgit.transport.Daemon;
+import org.eclipse.jgit.transport.PacketLineOut;
+import org.eclipse.jgit.transport.ServiceMayNotContinueException;
+import org.eclipse.jgit.transport.resolver.ServiceNotAuthorizedException;
+import org.eclipse.jgit.transport.resolver.ServiceNotEnabledException;
+
+/** A service exposed by {@link Daemon} over anonymous <code>git://</code>. */
+public abstract class GitDaemonService {
+ private final String command;
+
+ private final SectionParser<ServiceConfig> configKey;
+
+ private boolean enabled;
+
+ private boolean overridable;
+
+ GitDaemonService(final String cmdName, final String cfgName) {
+ command = cmdName.startsWith("git-") ? cmdName : "git-" + cmdName; //$NON-NLS-1$ //$NON-NLS-2$
+ configKey = new SectionParser<ServiceConfig>() {
+ public ServiceConfig parse(final Config cfg) {
+ return new ServiceConfig(GitDaemonService.this, cfg, cfgName);
+ }
+ };
+ overridable = true;
+ }
+
+ private static class ServiceConfig {
+ final boolean enabled;
+
+ ServiceConfig(final GitDaemonService service, final Config cfg,
+ final String name) {
+ enabled = cfg.getBoolean("daemon", name, service.isEnabled()); //$NON-NLS-1$
+ }
+ }
+
+ /** @return is this service enabled for invocation? */
+ public boolean isEnabled() {
+ return enabled;
+ }
+
+ /**
+ * @param on
+ * true to allow this service to be used; false to deny it.
+ */
+ public void setEnabled(final boolean on) {
+ enabled = on;
+ }
+
+ /** @return can this service be configured in the repository config file? */
+ public boolean isOverridable() {
+ return overridable;
+ }
+
+ /**
+ * @param on
+ * true to permit repositories to override this service's enabled
+ * state with the <code>daemon.servicename</code> config setting.
+ */
+ public void setOverridable(final boolean on) {
+ overridable = on;
+ }
+
+ /** @return name of the command requested by clients. */
+ public String getCommandName() {
+ return command;
+ }
+
+ /**
+ * Determine if this service can handle the requested command.
+ *
+ * @param commandLine
+ * input line from the client.
+ * @return true if this command can accept the given command line.
+ */
+ public boolean handles(final String commandLine) {
+ return command.length() + 1 < commandLine.length()
+ && commandLine.charAt(command.length()) == ' '
+ && commandLine.startsWith(command);
+ }
+
+ void execute(final GitDaemonClient client, final String commandLine)
+ throws IOException, ServiceNotEnabledException,
+ ServiceNotAuthorizedException {
+ final String name = commandLine.substring(command.length() + 1);
+ Repository db;
+ try {
+ db = client.getDaemon().openRepository(client, name);
+ } catch (ServiceMayNotContinueException e) {
+ // An error when opening the repo means the client is expecting a ref
+ // advertisement, so use that style of error.
+ PacketLineOut pktOut = new PacketLineOut(client.getOutputStream());
+ pktOut.writeString("ERR " + e.getMessage() + "\n"); //$NON-NLS-1$ //$NON-NLS-2$
+ db = null;
+ }
+ if (db == null)
+ return;
+ try {
+ if (isEnabledFor(db))
+ execute(client, db);
+ } finally {
+ db.close();
+ }
+ }
+
+ private boolean isEnabledFor(final Repository db) {
+ if (isOverridable())
+ return db.getConfig().get(configKey).enabled;
+ return isEnabled();
+ }
+
+ abstract void execute(GitDaemonClient client, Repository db)
+ throws IOException, ServiceNotEnabledException,
+ ServiceNotAuthorizedException;
+}
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