jcraft源代码,java连接SSH

/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */ /* Copyright (c) 2002-2008 ymnk, JCraft,Inc. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. The names of the authors may not be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT, INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package com.jcraft.jsch; import java.io.*; import java.util.Vector; public class ChannelSftp extends ChannelSession{ private static final byte SSH_FXP_INIT= 1; private static final byte SSH_FXP_VERSION= 2; private static final byte SSH_FXP_OPEN= 3; private static final byte SSH_FXP_CLOSE= 4; private static final byte SSH_FXP_READ= 5; private static final byte SSH_FXP_WRITE= 6; private static final byte SSH_FXP_LSTAT= 7; private static final byte SSH_FXP_FSTAT= 8; private static final byte SSH_FXP_SETSTAT= 9; private static final byte SSH_FXP_FSETSTAT= 10; private static final byte SSH_FXP_OPENDIR= 11; private static final byte SSH_FXP_READDIR= 12; private static final byte SSH_FXP_REMOVE= 13; private static final byte SSH_FXP_MKDIR= 14; private static final byte SSH_FXP_RMDIR= 15; private static final byte SSH_FXP_REALPATH= 16; private static final byte SSH_FXP_STAT= 17; private static final byte SSH_FXP_RENAME= 18; private static final byte SSH_FXP_READLINK= 19; private static final byte SSH_FXP_SYMLINK= 20; private static final byte SSH_FXP_STATUS= 101; private static final byte SSH_FXP_HANDLE= 102; private static final byte SSH_FXP_DATA= 103; private static final byte SSH_FXP_NAME= 104; private static final byte SSH_FXP_ATTRS= 105; private static final byte SSH_FXP_EXTENDED= (byte)200; private static final byte SSH_FXP_EXTENDED_REPLY= (byte)201; // pflags private static final int SSH_FXF_READ= 0x00000001; private static final int SSH_FXF_WRITE= 0x00000002; private static final int SSH_FXF_APPEND= 0x00000004; private static final int SSH_FXF_CREAT= 0x00000008; private static final int SSH_FXF_TRUNC= 0x00000010; private static final int SSH_FXF_EXCL= 0x00000020; private static final int SSH_FILEXFER_ATTR_SIZE= 0x00000001; private static final int SSH_FILEXFER_ATTR_UIDGID= 0x00000002; private static final int SSH_FILEXFER_ATTR_PERMISSIONS= 0x00000004; private static final int SSH_FILEXFER_ATTR_ACMODTIME= 0x00000008; private static final int SSH_FILEXFER_ATTR_EXTENDED= 0x80000000; public static final int SSH_FX_OK= 0; public static final int SSH_FX_EOF= 1; public static final int SSH_FX_NO_SUCH_FILE= 2; public static final int SSH_FX_PERMISSION_DENIED= 3; public static final int SSH_FX_FAILURE= 4; public static final int SSH_FX_BAD_MESSAGE= 5; public static final int SSH_FX_NO_CONNECTION= 6; public static final int SSH_FX_CONNECTION_LOST= 7; public static final int SSH_FX_OP_UNSUPPORTED= 8; /* SSH_FX_OK Indicates successful completion of the operation. SSH_FX_EOF indicates end-of-file condition; for SSH_FX_READ it means that no more data is available in the file, and for SSH_FX_READDIR it indicates that no more files are contained in the directory. SSH_FX_NO_SUCH_FILE is returned when a reference is made to a file which should exist but doesn't. SSH_FX_PERMISSION_DENIED is returned when the authenticated user does not have sufficient permissions to perform the operation. SSH_FX_FAILURE is a generic catch-all error message; it should be returned if an error occurs for which there is no more specific error code defined. SSH_FX_BAD_MESSAGE may be returned if a badly formatted packet or protocol incompatibility is detected. SSH_FX_NO_CONNECTION is a pseudo-error which indicates that the client has no connection to the server (it can only be generated locally by the client, and MUST NOT be returned by servers). SSH_FX_CONNECTION_LOST is a pseudo-error which indicates that the connection to the server has been lost (it can only be generated locally by the client, and MUST NOT be returned by servers). SSH_FX_OP_UNSUPPORTED indicates that an attempt was made to perform an operation which is not supported for the server (it may be generated locally by the client if e.g. the version number exchange indicates that a required feature is not supported by the server, or it may be returned by the server if the server does not implement an operation). */ private static final int MAX_MSG_LENGTH = 256* 1024; public static final int OVERWRITE=0; public static final int RESUME=1; public static final int APPEND=2; private boolean interactive=false; private int seq=1; private int[] ackid=new int[1]; private Buffer buf; private Packet packet=new Packet(buf); private int client_version=3; private int server_version=3; private String version=String.valueOf(client_version); private java.util.Hashtable extensions=null; private InputStream io_in=null; /* 10. Changes from previous protocol versions The SSH File Transfer Protocol has changed over time, before it's standardization. The following is a description of the incompatible changes between different versions. 10.1 Changes between versions 3 and 2 o The SSH_FXP_READLINK and SSH_FXP_SYMLINK messages were added. o The SSH_FXP_EXTENDED and SSH_FXP_EXTENDED_REPLY messages were added. o The SSH_FXP_STATUS message was changed to include fields `error message' and `language tag'. 10.2 Changes between versions 2 and 1 o The SSH_FXP_RENAME message was added. 10.3 Changes between versions 1 and 0 o Implementation changes, no actual protocol changes. */ private static final String file_separator=java.io.File.separator; private static final char file_separatorc=java.io.File.separatorChar; private static boolean fs_is_bs=(byte)java.io.File.separatorChar == '\\'; private String cwd; private String home; private String lcwd; private static final String UTF8="UTF-8"; private String fEncoding=UTF8; private boolean fEncoding_is_utf8=true; void init(){ } public void start() throws JSchException{ try{ PipedOutputStream pos=new PipedOutputStre