| // 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.server.ssh; |
| |
| import com.google.gerrit.server.ssh.SshScopes.Context; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| |
| import org.apache.sshd.server.CommandFactory; |
| import org.apache.sshd.server.CommandFactory.Command; |
| import org.apache.sshd.server.CommandFactory.ExitCallback; |
| import org.apache.sshd.server.CommandFactory.SessionAware; |
| import org.apache.sshd.server.session.ServerSession; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| |
| /** |
| * Creates a CommandFactory using commands registered by {@link CommandModule}. |
| */ |
| class CommandFactoryProvider implements Provider<CommandFactory> { |
| private final DispatchCommandProvider dispatcher; |
| |
| @Inject |
| CommandFactoryProvider( |
| @CommandName(Commands.ROOT) final DispatchCommandProvider d) { |
| dispatcher = d; |
| } |
| |
| @Override |
| public CommandFactory get() { |
| return new CommandFactory() { |
| public Command createCommand(final String requestCommand) { |
| return new Trampoline(requestCommand); |
| } |
| }; |
| } |
| |
| private class Trampoline implements Command, SessionAware { |
| private final String commandLine; |
| private InputStream in; |
| private OutputStream out; |
| private OutputStream err; |
| private ExitCallback exit; |
| private ServerSession session; |
| |
| Trampoline(final String cmdLine) { |
| commandLine = cmdLine; |
| } |
| |
| public void setInputStream(final InputStream in) { |
| this.in = in; |
| } |
| |
| public void setOutputStream(final OutputStream out) { |
| this.out = out; |
| } |
| |
| public void setErrorStream(final OutputStream err) { |
| this.err = err; |
| } |
| |
| public void setExitCallback(final ExitCallback callback) { |
| this.exit = callback; |
| } |
| |
| public void setSession(final ServerSession session) { |
| this.session = session; |
| } |
| |
| public void start() throws IOException { |
| final Context old = SshScopes.current.get(); |
| try { |
| SshScopes.current.set(new Context(session)); |
| final DispatchCommand c = dispatcher.get(); |
| c.setCommandLine(commandLine); |
| c.setInputStream(in); |
| c.setOutputStream(out); |
| c.setErrorStream(err); |
| c.setExitCallback(exit); |
| c.start(); |
| } finally { |
| SshScopes.current.set(old); |
| } |
| } |
| } |
| } |