| /* |
| * 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.maven.wagon.providers.ssh; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.sshd.server.Command; |
| import org.apache.sshd.server.CommandFactory; |
| |
| /** |
| * This <code>CommandFactory</code> can be used as a standalone command factory |
| * or can be used to augment another <code>CommandFactory</code> and provides |
| * <code>SCP</code> support. |
| * |
| * @see ScpCommand |
| * |
| * @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a> |
| */ |
| public class ScpCommandFactory implements CommandFactory { |
| |
| private CommandFactory delegate; |
| |
| public ScpCommandFactory() {} |
| |
| public ScpCommandFactory(CommandFactory delegate) { |
| this.delegate = delegate; |
| } |
| |
| /** |
| * Parses a command string and verifies that the basic syntax is |
| * correct. If parsing fails the responsibility is delegated to |
| * the configured {@link org.apache.sshd.server.CommandFactory} instance; if one exist. |
| * |
| * @param command command to parse |
| * @return configured {@link org.apache.sshd.server.Command} instance |
| * @throws IllegalArgumentException |
| */ |
| public Command createCommand(String command) { |
| try { |
| return new ScpCommand(splitCommandString(command)); |
| } catch (IllegalArgumentException iae) { |
| if (delegate != null) { |
| return delegate.createCommand(command); |
| } |
| throw iae; |
| } |
| } |
| |
| private String[] splitCommandString(String command) { |
| if (!command.trim().startsWith("scp")) { |
| throw new IllegalArgumentException("Unknown command, does not begin with 'scp'"); |
| } |
| |
| String[] args = command.split(" "); |
| List<String> parts = new ArrayList<>(); |
| parts.add(args[0]); |
| for (int i = 1; i < args.length; i++) { |
| if (!args[i].trim().startsWith("-")) { |
| parts.add(concatenateWithSpace(args, i)); |
| break; |
| } else { |
| parts.add(args[i]); |
| } |
| } |
| return parts.toArray(new String[parts.size()]); |
| } |
| |
| private String concatenateWithSpace(String[] args, int from) { |
| StringBuilder sb = new StringBuilder(); |
| |
| for (int i = from; i < args.length; i++) { |
| sb.append(args[i] + " "); |
| } |
| return sb.toString().trim(); |
| } |
| } |