// Copyright (C) 2009 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 static com.google.inject.Scopes.SINGLETON;
import static com.google.gerrit.extensions.registration.PrivateInternals_DynamicTypes.registerInParentInjectors;
import com.google.common.collect.Maps;
import com.google.gerrit.lifecycle.LifecycleModule;
import com.google.gerrit.server.CmdLineParserModule;
import com.google.gerrit.server.PeerDaemonUser;
import com.google.gerrit.server.RemotePeer;
import com.google.gerrit.server.account.AccountManager;
import com.google.gerrit.server.account.ChangeUserName;
import com.google.gerrit.server.config.FactoryModule;
import com.google.gerrit.server.config.GerritRequestModule;
import com.google.gerrit.server.config.GerritServerConfig;
import com.google.gerrit.server.git.QueueProvider;
import com.google.gerrit.server.git.WorkQueue;
import com.google.gerrit.server.plugins.ModuleGenerator;
import com.google.gerrit.server.plugins.ReloadPluginListener;
import com.google.gerrit.server.plugins.StartPluginListener;
import com.google.gerrit.server.ssh.SshInfo;
import com.google.gerrit.server.util.RequestScopePropagator;
import com.google.gerrit.sshd.commands.DefaultCommandModule;
import com.google.gerrit.sshd.commands.QueryShell;
import com.google.inject.Inject;
import com.google.inject.internal.UniqueAnnotations;
import com.google.inject.servlet.RequestScoped;
import org.apache.sshd.common.KeyPairProvider;
import org.apache.sshd.server.CommandFactory;
import org.apache.sshd.server.PublickeyAuthenticator;
import org.eclipse.jgit.lib.Config;
import java.net.SocketAddress;
import java.util.Map;
/** Configures standard dependencies for {@link SshDaemon}. */
public class SshModule extends FactoryModule {
private final Map<String, String> aliases;
@Inject
SshModule(@GerritServerConfig Config cfg) {
aliases = Maps.newHashMap();
for (String name : cfg.getNames("ssh-alias")) {
aliases.put(name, cfg.getString("ssh-alias", null, name));
}
}
@Override
protected void configure() {
bindScope(RequestScoped.class, SshScope.REQUEST);
bind(RequestScopePropagator.class).to(SshScope.Propagator.class);
bind(SshScope.class).in(SINGLETON);
configureRequestScope();
install(new CmdLineParserModule());
configureAliases();
install(SshKeyCacheImpl.module());
bind(SshLog.class);
bind(SshInfo.class).to(SshDaemon.class).in(SINGLETON);
factory(DispatchCommand.Factory.class);
factory(QueryShell.Factory.class);
factory(PeerDaemonUser.Factory.class);
bind(DispatchCommandProvider.class).annotatedWith(Commands.CMD_ROOT)
.toInstance(new DispatchCommandProvider(Commands.CMD_ROOT));
bind(CommandFactoryProvider.class);
bind(CommandFactory.class).toProvider(CommandFactoryProvider.class);
bind(WorkQueue.Executor.class).annotatedWith(StreamCommandExecutor.class)
.toProvider(StreamCommandExecutorProvider.class).in(SINGLETON);
bind(QueueProvider.class).to(CommandExecutorQueueProvider.class).in(SINGLETON);
bind(AccountManager.class);
factory(ChangeUserName.Factory.class);
bind(PublickeyAuthenticator.class).to(DatabasePubKeyAuth.class);
bind(KeyPairProvider.class).toProvider(HostKeyProvider.class).in(SINGLETON);
install(new DefaultCommandModule());
install(new LifecycleModule() {
@Override
protected void configure() {
bind(ModuleGenerator.class).to(SshAutoRegisterModuleGenerator.class);
bind(SshPluginStarterCallback.class);
bind(StartPluginListener.class)
.annotatedWith(UniqueAnnotations.create())
.to(SshPluginStarterCallback.class);
bind(ReloadPluginListener.class)
.annotatedWith(UniqueAnnotations.create())
.to(SshPluginStarterCallback.class);
listener().toInstance(registerInParentInjectors());
listener().to(SshLog.class);
listener().to(SshDaemon.class);
}
});
}
private void configureAliases() {
CommandName gerrit = Commands.named("gerrit");
for (Map.Entry<String, String> e : aliases.entrySet()) {
String name = e.getKey();
String[] dest = e.getValue().split("[ \\t]+");
CommandName cmd = Commands.named(dest[0]);
for (int i = 1; i < dest.length; i++) {
cmd = Commands.named(cmd, dest[i]);
}
bind(Commands.key(gerrit, name))
.toProvider(new AliasCommandProvider(cmd));
}
}
private void configureRequestScope() {
bind(SshScope.Context.class).toProvider(SshScope.ContextProvider.class);
bind(SshSession.class).toProvider(SshScope.SshSessionProvider.class).in(
SshScope.REQUEST);
bind(SocketAddress.class).annotatedWith(RemotePeer.class).toProvider(
SshRemotePeerProvider.class).in(SshScope.REQUEST);
bind(WorkQueue.Executor.class).annotatedWith(CommandExecutor.class)
.toProvider(CommandExecutorProvider.class).in(SshScope.REQUEST);
install(new GerritRequestModule());
}
}