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// Copyright (C) 2008 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.gerrit.sshd;
import com.google.gerrit.entities.Project;
import com.google.gerrit.server.AccessPath;
import com.google.gerrit.server.IdentifiedUser;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.gerrit.server.project.ProjectState;
import com.google.gerrit.sshd.SshScope.Context;
import com.google.inject.Inject;
import java.io.IOException;
import org.apache.sshd.server.Environment;
import org.apache.sshd.server.channel.ChannelSession;
import org.eclipse.jgit.errors.RepositoryNotFoundException;
import org.eclipse.jgit.lib.Repository;
import org.kohsuke.args4j.Argument;
public abstract class AbstractGitCommand extends BaseCommand {
private static final String GIT_PROTOCOL = "GIT_PROTOCOL";
@Argument(index = 0, metaVar = "PROJECT.git", required = true, usage = "project name")
protected ProjectState projectState;
@Inject private SshScope sshScope;
@Inject private GitRepositoryManager repoManager;
@Inject private SshSession session;
@Inject private SshScope.Context context;
@Inject private IdentifiedUser.GenericFactory userFactory;
protected Repository repo;
protected Project.NameKey projectName;
protected Project project;
protected String[] extraParameters;
@Override
public void start(ChannelSession channel, Environment env) {
String gitProtocol = env.getEnv().get(GIT_PROTOCOL);
if (gitProtocol != null) {
extraParameters = gitProtocol.split(":");
}
Context ctx = context.subContext(newSession(), context.getCommandLine());
final Context old = sshScope.set(ctx);
try {
startThread(
new ProjectCommandRunnable() {
@Override
public void executeParseCommand() throws Exception {
parseCommandLine();
}
@Override
public void run() throws Exception {
AbstractGitCommand.this.service();
}
@Override
public Project.NameKey getProjectName() {
Project project = projectState.getProject();
return project.getNameKey();
}
},
AccessPath.GIT);
} finally {
sshScope.set(old);
}
}
private SshSession newSession() {
SshSession n =
new SshSession(
session,
session.getRemoteAddress(),
userFactory.create(session.getRemoteAddress(), user.getAccountId()));
return n;
}
private void service() throws IOException, PermissionBackendException, Failure {
project = projectState.getProject();
projectName = project.getNameKey();
try {
repo = repoManager.openRepository(projectName);
} catch (RepositoryNotFoundException e) {
throw new Failure(1, "fatal: '" + project.getName() + "': not a git archive", e);
}
try {
runImpl();
} finally {
repo.close();
}
}
protected abstract void runImpl() throws IOException, PermissionBackendException, Failure;
}