public static void main(String[] arg) {
    if (arg.length != 2) {
      System.err.println("usage: java ScpTo file1 user@remotehost:file2");
      System.exit(-1);
    }

    FileInputStream fis = null;
    try {

      String lfile = arg[0];
      String user = arg[1].substring(0, arg[1].indexOf('@'));
      arg[1] = arg[1].substring(arg[1].indexOf('@') + 1);
      String host = arg[1].substring(0, arg[1].indexOf(':'));
      String rfile = arg[1].substring(arg[1].indexOf(':') + 1);

      JSch jsch = new JSch();
      Session session = jsch.getSession(user, host, 22);

      // username and password will be given via UserInfo interface.
      UserInfo ui = new MyUserInfo();
      session.setUserInfo(ui);
      session.connect();

      boolean ptimestamp = true;

      // exec 'scp -t rfile' remotely
      String command = "scp " + (ptimestamp ? "-p" : "") + " -t " + rfile;
      Channel channel = session.openChannel("exec");
      ((ChannelExec) channel).setCommand(command);

      // get I/O streams for remote scp
      OutputStream out = channel.getOutputStream();
      InputStream in = channel.getInputStream();

      channel.connect();

      if (checkAck(in) != 0) {
        System.exit(0);
      }

      File _lfile = new File(lfile);

      if (ptimestamp) {
        command = "T " + (_lfile.lastModified() / 1000) + " 0";
        // The access time should be sent here,
        // but it is not accessible with JavaAPI ;-<
        command += (" " + (_lfile.lastModified() / 1000) + " 0\n");
        out.write(command.getBytes());
        out.flush();
        if (checkAck(in) != 0) {
          System.exit(0);
        }
      }

      // send "C0644 filesize filename", where filename should not include '/'
      long filesize = _lfile.length();
      command = "C0644 " + filesize + " ";
      if (lfile.lastIndexOf('/') > 0) {
        command += lfile.substring(lfile.lastIndexOf('/') + 1);
      } else {
        command += lfile;
      }
      command += "\n";
      out.write(command.getBytes());
      out.flush();
      if (checkAck(in) != 0) {
        System.exit(0);
      }

      // send a content of lfile
      fis = new FileInputStream(lfile);
      byte[] buf = new byte[1024];
      while (true) {
        int len = fis.read(buf, 0, buf.length);
        if (len <= 0) break;
        out.write(buf, 0, len); // out.flush();
      }
      fis.close();
      fis = null;
      // send '\0'
      buf[0] = 0;
      out.write(buf, 0, 1);
      out.flush();
      if (checkAck(in) != 0) {
        System.exit(0);
      }
      out.close();

      channel.disconnect();
      session.disconnect();

      System.exit(0);
    } catch (Exception e) {
      System.out.println(e);
      try {
        if (fis != null) fis.close();
      } catch (Exception ee) {
      }
    }
  }
Example #2
0
  /**
   * execute the given command in the remote host
   *
   * @param command
   * @return - command output in the remote host
   */
  public String exec(String command) {
    if (!connected) {
      throw new ActionFailedException("There is no session!");
    }
    StringBuffer data = new StringBuffer();
    OutputStream out = null;
    InputStream in = null;
    try {
      Channel channel;

      boolean channel_connected = false;
      int count = 0;
      while (!channel_connected) {

        try {
          channel = session.openChannel("exec");
          ((ChannelExec) channel).setCommand(command);

          out = channel.getOutputStream();
          in = channel.getInputStream();
          channel.connect();
          channel_connected = true;
        } catch (Exception e) {
          count++;
          String msg = e.getMessage();
          if (count < 5) {
            AutomationLogger.getInstance()
                .warn(
                    "Failed to connect to SSH server due to "
                        + msg
                        + ". Will try again in 1 second");
            if (msg.startsWith("session is down")) {
              AutomationLogger.getInstance().info("Try to re-connect session");
              connect();
            }
            Timer.sleep(1000);
          } else {
            throw new ActionFailedException("Failed to connect to SSH server due to " + e);
          }
        }
      }

      byte[] buf = new byte[1024];

      // read
      count = 0;
      while ((count = in.read(buf)) > 0) {
        data.append(new String(buf, 0, count));
      }

    } catch (Exception e) {
      AutomationLogger.getInstance().warn(e);
    } finally {
      try {
        in.close();
      } catch (Exception e) {
      }
      try {
        out.close();
      } catch (Exception e) {
      }

      if (channel != null) {
        channel.disconnect();
      }
    }
    return data.toString();
  }