public void run()
  {
    try
    {
    newLine = con.getCRLF();

      if(Settings.getFtpPasvMode())
      {
        try
        {
          sock = new Socket(host, port);
          sock.setSoTimeout(Settings.getSocketTimeout());
        }
        catch(Exception ex)
        {
          ok = false;
          debug("Can't open Socket on port " + port);
        }
      }
      else
      {
        //Log.debug("trying new server socket: "+port);
        try
        {
          ssock = new ServerSocket(port);
        }
        catch(Exception ex)
        {
          ok = false;
          Log.debug("Can't open ServerSocket on port " + port);
        }
      }
    }
    catch(Exception ex)
    {
      debug(ex.toString());
    }

    isThere = true;

    boolean ok = true;

    RandomAccessFile fOut = null;
    BufferedOutputStream bOut = null;
    RandomAccessFile fIn = null;

    try
    {
      if(!Settings.getFtpPasvMode())
      {
        int retry = 0;

        while((retry++ < 5) && (sock == null))
        {
          try
          {
            ssock.setSoTimeout(Settings.connectionTimeout);
            sock = ssock.accept();
          }
          catch(IOException e)
          {
            sock = null;
            debug("Got IOException while trying to open a socket!");

            if(retry == 5)
            {
              debug("Connection failed, tried 5 times - maybe try a higher timeout in Settings.java");
            }

        finished = true;

            throw e;
          }
          finally
          {
            ssock.close();
          }

          debug("Attempt timed out, retrying");
        }
      }

      if(ok)
      {
        byte[] buf = new byte[Settings.bufferSize];
        start = System.currentTimeMillis();

        int buflen = 0;

        //---------------download，下载----------------------
        if(type.equals(GET) || type.equals(GETDIR))
        {
          if(!justStream)
          {
            try
            {
              if(resume)
              {
                File f = new File(file);
                fOut = new RandomAccessFile(file, "rw");
                fOut.skipBytes((int) f.length());
                buflen = (int) f.length();
              }
              else
              {
                if(localfile == null)
                {
                  localfile = file;
                }

                File f2 = new File(Settings.appHomeDir);
                f2.mkdirs();

                File f = new File(localfile);

                if(f.exists())
                {
                  f.delete();
                }

                bOut = new BufferedOutputStream(new FileOutputStream(localfile),
                                Settings.bufferSize);
              }
            }
            catch(Exception ex)
            {
              debug("Can't create outputfile: " + file);
              ok = false;
              ex.printStackTrace();
            }
          }

        
        //---------------upload，上传----------------------
        if(type.equals(PUT) || type.equals(PUTDIR))
        {
          if(in == null)
          {
            try
            {
              fIn = new RandomAccessFile(file, "r");
              
              if(resume)
              {
                fIn.skipBytes(skiplen);
              }
              
              //fIn = new BufferedInputStream(new FileInputStream(file));
            }
            catch(Exception ex)
            {
              debug("Can't open inputfile: " + " (" + ex + ")");
              ok = false;
            }
          }
          
          if(ok)
          {
            try
            {
              out = new BufferedOutputStream(sock.getOutputStream());
            }
            catch(Exception ex)
            {
              ok = false;
              debug("Can't get OutputStream");
            }
            
            if(ok)
            {
              try
              {
                int len = skiplen;
                char b;
                
                while(true)
                {
                  int read;
                  
                  if(in != null)
                  {
                    read = in.read(buf);
                  }
                  else
                  {
                    read = fIn.read(buf);
                  }
                  
                  len += read;
                  
                  //System.out.println(file + " " + type+ " " + len + " " + read);
                  if(read == -1)
                  {
                    break;
                  }
                  
                  if(newLine != null) 
                  {
                    byte[] buf2 = modifyPut(buf, read);
                    out.write(buf2, 0, buf2.length);
                  }
                  else 
                  {
                    out.write(buf, 0, read);
                  }
                  
                  con.fireProgressUpdate(file, type, len);
                  
                  if(time())
                  {
                    //  Log.debugSize(len, false, false, file);
                  }
                  
                  if(read == StreamTokenizer.TT_EOF)
                  {
                    break;
                  }
                }
                
                out.flush();
                
                //Log.debugSize(len, false, true, file);
              }
              catch(IOException ex)
              {
                ok = false;
                debug("Error: Data connection closed.");
                con.fireProgressUpdate(file, FAILED, -1);
                ex.printStackTrace();
              }
            }
          }
        }
      }
    }
    catch(IOException ex)
    {
      Log.debug("Can't connect socket to ServerSocket");
      ex.printStackTrace();
    }
    finally
    {
      try
      {
        if(out != null)
        {
          out.flush();
          out.close();
        }
      }
      catch(Exception ex)
      {
        ex.printStackTrace();
      }
      
      try
      {
        if(bOut != null)
        {
          bOut.flush();
          bOut.close();
        }
      }
      catch(Exception ex)
      {
        ex.printStackTrace();
      }
      
      try
      {
        if(fOut != null)
        {
          fOut.close();
        }
      }
      catch(Exception ex)
      {
        ex.printStackTrace();
      }
      
      try
      {
        if(in != null && !justStream)
        {
          in.close();
        }
        
        if(fIn != null)
        {
          fIn.close();
        }
      }
      catch(Exception ex)
      {
        ex.printStackTrace();
      }
    }
    
    try
    {
      sock.close();
    }
    catch(Exception ex)
    {
      debug(ex.toString());
    }
    
    if(!Settings.getFtpPasvMode())
    {
      try
      {
        ssock.close();
      }
      catch(Exception ex)
      {
        debug(ex.toString());
      }
    }
    
    finished = true;
    
    if(ok)
    {
      con.fireProgressUpdate(file, FINISHED, -1);
    }
    else
    {
      con.fireProgressUpdate(file, FAILED, -1);
    }
  }

grant  { 
    //对系统和用户目录“读”的权限
    permission  java.util.PropertyPermission  "user.dir",  "read";  
    permission  java.util.PropertyPermission  "user.home",  "read";  
    permission  java.util.PropertyPermission  "java.home",  "read";  
    permission  java.util.PropertyPermission  "java.class.pat",  "read";  
    permission  java.util.PropertyPermission  "user.name",  "read";  
    //对线程和线程组的操作权限
    permission  java.lang.RuntimePermission  "accessClassInPackage.sun.misc";  
    permission  java.lang.RuntimePermission  "accessClassInPackage.sun.audio";  
    permission  java.lang.RuntimePermission  "modifyThread";  
    permission  java.lang.RuntimePermission  "modifyThreadGroup";  
    permission  java.lang.RuntimePermission  "loadLibrary.*";  
    //读写文件的权限
    permission  java.io.FilePermission  "<<ALL  FILES>>",  "read";  
    permission  java.io.FilePermission  "${user.dir}${/}jmf.log",  "write";  
    permission  java.io.FilePermission  "${user.home}${/}.JMStudioCfg",  "write";  
    permission  java.net.SocketPermissio  "*",  "connect,accept";  
    permission  java.io.FilePermission  "C:\WINNT\TEMP\*",  "write";  
    permission  java.io.FilePermission  "C:\WINNT\TEMP\*",  "delete";  
    permission  java.awt.AWTPermission  "showWindowWithoutWarningBanner";  
    permission  javax.sound.sampled.AudioPermission  "record"; 

  // //操作Socket端口的各种权限
    permission  java.net.SocketPermission  "-",  "listen";  
    permission  java.net.SocketPermission  "-",  "accept";  
    permission  java.net.SocketPermission  "-",  "connect";  
    permission  java.net.SocketPermission  "-",  "resolve";  
    permission  java.security.AllPermission;  
   };

  grant  signedBy  "saili"  { 
    permission  java.net.SocketPermission  "*:1024-65535",  "connect,accept,resolve";  
    permission  java.net.SocketPermission  "*:80",  "connect";  
    permission  java.net.SocketPermission  "-",  "listen,  accept,  connect,  listen,  resolve",  signedBy  "ganja";  
    permission  java.net.SocketPermission  "-",  "accept";  
    permission  java.net.SocketPermission  "-",  "connect";  
    permission  java.net.SocketPermission  "-",  "resolve";  
    permission  java.security.AllPermission;  
   };

 //引入netscape类
import netscape.javascript.JSObject； 
import netscape.javascript.JSException； //可允许在小程序中处理异常事件
public void callJavaScript(String callBackJavascript) {
  JSObject window = JSObject.getWindow(this); // 获取JavaScript窗口句柄，引用当前文档窗口
  JSObject docment = (JSObject) window.getMember("document");
    form=(JSObject)doc.getMember("textForm")； //访问JavaScript form对象 
    textField=(JSObject)form.getMember("textField")；访问JavaScript text对象 
     text=(String) textField.getMember("value"); //获取文本区的值
  // 调用JavaScript的alert（）方法
  // window.eval("alert(\"This alert comes from Java!\")");
  window.call(callBackJavascript, null);// 参数用数组的形式表示。
  }