| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.karaf.shell.ssh; |
| |
| import java.io.Closeable; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.PrintStream; |
| import java.security.PrivilegedActionException; |
| import java.security.PrivilegedExceptionAction; |
| import javax.security.auth.Subject; |
| |
| import org.apache.felix.service.command.CommandProcessor; |
| import org.apache.felix.service.command.CommandSession; |
| import org.apache.sshd.server.Command; |
| import org.apache.sshd.server.CommandFactory; |
| import org.apache.sshd.server.Environment; |
| import org.apache.sshd.server.ExitCallback; |
| import org.apache.sshd.server.SessionAware; |
| import org.apache.sshd.server.session.ServerSession; |
| |
| public class ShellCommandFactory implements CommandFactory { |
| |
| private CommandProcessor commandProcessor; |
| |
| public void setCommandProcessor(CommandProcessor commandProcessor) { |
| this.commandProcessor = commandProcessor; |
| } |
| |
| public Command createCommand(String command) { |
| return new ShellCommand(command); |
| } |
| |
| public class ShellCommand implements Command, SessionAware { |
| |
| private String command; |
| private InputStream in; |
| private OutputStream out; |
| private OutputStream err; |
| private ExitCallback callback; |
| private ServerSession session; |
| |
| public ShellCommand(String command) { |
| this.command = command; |
| } |
| |
| public void setInputStream(InputStream in) { |
| this.in = in; |
| } |
| |
| public void setOutputStream(OutputStream out) { |
| this.out = out; |
| } |
| |
| public void setErrorStream(OutputStream err) { |
| this.err = err; |
| } |
| |
| public void setExitCallback(ExitCallback callback) { |
| this.callback = callback; |
| } |
| |
| public void setSession(ServerSession session) { |
| this.session = session; |
| } |
| |
| public void start(final Environment env) throws IOException { |
| try { |
| final CommandSession session = commandProcessor.createSession(in, new PrintStream(out), new PrintStream(err)); |
| session.put("SCOPE", "shell:osgi:*"); |
| Subject subject = this.session != null ? this.session.getAttribute(KarafJaasPasswordAuthenticator.SUBJECT_ATTRIBUTE_KEY) : null; |
| if (subject != null) { |
| try { |
| Subject.doAs(subject, new PrivilegedExceptionAction<Object>() { |
| public Object run() throws Exception { |
| session.execute(command); |
| return null; |
| } |
| }); |
| } catch (PrivilegedActionException e) { |
| throw e.getException(); |
| } |
| } else { |
| session.execute(command); |
| } |
| } catch (Exception e) { |
| throw (IOException) new IOException("Unable to start shell").initCause(e); |
| } finally { |
| close(in, out, err); |
| callback.onExit(0); |
| } |
| } |
| |
| public void destroy() { |
| } |
| |
| } |
| |
| private static void close(Closeable... closeables) { |
| for (Closeable c : closeables) { |
| try { |
| c.close(); |
| } catch (IOException e) { |
| // Ignore |
| } |
| } |
| } |
| } |