webdavconnection.java

一个JAVA做的FTP软件,带源码的,可以很好的进行二次开发,,并带有详细说明文件的

                catch(Exception ex)
                {
                        Log.debug("ERROR: parsing problem with:" + files[i]);
                        size[i] = "-1";
                        perms[i] = FtpConnection.DENIED;
                        continue;
                }
                */
                Log.out("sortLs files[" + i + "]: " + files[i]);

                //size[i] = "" + (int) f[i].length();
                size[i] = "" + (int) f[i].getGetContentLength();
                perms[i] = FtpConnection.R;

                if(f[i].isCollection() && !files[i].endsWith("/"))
                {
                    files[i] = files[i] + "/";
                }

                /*
                if(f[i].canWrite()) accessible = FtpConnection.W;
                else if(f[i].canRead()) accessible = FtpConnection.R;
                else accessible = FtpConnection.DENIED;
                perms[i] = accessible;

                Log.out("sortLs files["+i+"]: " + files[i]);
                WebdavFile f2 = new WebdavFile(new URL(files[i]), user, pass);

                if(!f2.exists()) continue;
                if(f2.isDirectory() && !files[i].endsWith("/")) files[i] = files[i] + "/";

                size[i] = "" + new WebdavFile(new URL(files[i]), user, pass).length();
                */
            }

            return files;
        }
        catch(Exception ex)
        {
            Log.debug("Error: " + ex.toString());
            ex.printStackTrace();

            return new String[0];
        }
    }

    public String[] sortSize(String file)
    {
        return size;
    }

    public int[] getPermissions(String file)
    {
        return perms;
    }

    public int handleDownload(String file)
    {
        transfer(file);

        return 0;
    }

    public int handleUpload(String file)
    {
        transfer(file, true);

        return 0;
    }

    public int download(String file)
    {
        transfer(file);

        return 0;
    }

    public int upload(String file)
    {
        transfer(file, true);

        return 0;
    }

    private void transferDir(String dir, String out)
    {
        try
        {
            fileCount = 0;
            shortProgress = true;
            baseFile = StringUtils.getDir(dir);

            WebdavFile f2 = new WebdavFile(getURL(dir));
            String[] tmp = f2.list();

            if(tmp == null)
            {
                return;
            }

            WebdavFile fx = new WebdavFile(getURL(out));

            if(!fx.mkdir())
            {
                Log.debug("Can not create directory: " + out +
                          " - already exist or permission denied?");
            }

            for(int i = 0; i < tmp.length; i++)
            {
                tmp[i] = tmp[i].replace('\\', '/');

                //System.out.println("1: " + dir+tmp[i] + ", " + out +tmp[i]);
                WebdavFile f3 = new WebdavFile(getURL(dir + tmp[i]));

                if(f3.isDirectory())
                {
                    if(!tmp[i].endsWith("/"))
                    {
                        tmp[i] = tmp[i] + "/";
                    }

                    transferDir(dir + tmp[i], out + tmp[i]);
                }
                else
                {
                    fireProgressUpdate(baseFile,
                                       DataConnection.GETDIR + ":" + fileCount,
                                       -1);
                    work(dir + tmp[i], out + tmp[i]);
                }
            }

            fireProgressUpdate(baseFile,
                               DataConnection.DFINISHED + ":" + fileCount, -1);
            shortProgress = false;
        }
        catch(Exception ex)
        {
            Log.debug("Error: " + ex.toString());
            ex.printStackTrace();
        }
    }

    private HttpURL getURL(String u)
    {
        try
        {
            HttpURL url = new HttpURL(u);

            //System.out.println(user + ":"+ pass);
            url.setUserinfo(user, pass);

            return url;
        }
        catch(Exception ex)
        {
            ex.printStackTrace();
            Log.debug("ERROR: " + ex);

            return null;
        }
    }

    private WebdavResource getResource(String res)
                                throws HttpException, IOException
    {
        return new WebdavResource(getURL(res));
    }

    private void transfer(String file)
    {
        transfer(file, false);
    }

    private void transfer(String file, boolean up)
    {
        String out = StringUtils.getDir(file);

        if(StringUtils.isRelative(file))
        {
            file = getPWD() + file;
        }

        file = file.replace('\\', '/');
        out = out.replace('\\', '/');

        String outfile = StringUtils.getFile(file);

        if(file.endsWith("/"))
        {
            if(up)
            {
                Log.debug("Directory upload not implemented yet.");

                return;
            }

            transferDir(file, getLocalPath() + out);

            return;
        }
        else
        {
            if(up)
            {
                work(getLocalPath() + outfile, file);
            }
            else
            {
                work(file, getLocalPath() + outfile);
            }
        }
    }

    private void work(String file, String outfile)
    {
        Log.out("transfer started\nfile: " + file + "\noutfile: " + outfile);

        try
        {
            if(outfile.startsWith("http://"))
            {
                //out = new BufferedOutputStream(new FileOutputStream(new WebdavResource(new HttpURL(file)).getMethodData());
                //new WebdavFile(new URL(outfile), user, pass)));
                //in = new BufferedInputStream(new FileInputStream(file));
                String resPath = outfile.substring(0,
                                                   outfile.lastIndexOf("/") +
                                                   1);
                String name = outfile.substring(outfile.lastIndexOf("/") + 1);

                Log.debug("Uploading " + file + " to " + resPath + " as " +
                          name);

                //HttpURL url = getURL(resPath);
                WebdavResource res = getResource(resPath);

                //new WebdavResource(url);

                /*
                if(res.checkinMethod()) Log.debug("Checkin OK");
                else Log.debug("Checkin FAILED");

                Enumeration e = res.getAllowedMethods();
                while(e != null && e.hasMoreElements())
                {
                        Log.debug("Method: " + e.nextElement().toString());
                }
                */
                if(res.putMethod(new File(file)))
                {
                    fireProgressUpdate(file, DataConnection.FINISHED, -1);
                }
                else
                {
                    Log.debug("Upload failed.");
                    fireProgressUpdate(file, DataConnection.FAILED, -1);
                }

                return;
            }

            Log.debug("Downloading " + file + " to " + outfile);

            BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(outfile));
            BufferedInputStream in = new BufferedInputStream(getResource(file)
                                                                 .getMethodData());

            //new WebdavResource(getURL(file)).getMethodData());
            byte[] buf = new byte[webdavBuffer];
            int len = 0;
            int reallen = 0;

            //System.out.println(file+":"+getLocalPath()+outfile);
            while(true)
            {
                len = in.read(buf);

                //System.out.print(".");
                if(len == StreamTokenizer.TT_EOF)
                {
                    break;
                }

                out.write(buf, 0, len);

                reallen += len;
                fireProgressUpdate(StringUtils.getFile(file),
                                   DataConnection.GET, reallen);
            }

            out.flush();
            out.close();
            in.close();
            fireProgressUpdate(file, DataConnection.FINISHED, -1);
        }
        catch(IOException ex)
        {
            Log.debug("Error with file IO (" + ex + ")!");
            ex.printStackTrace();
            fireProgressUpdate(file, DataConnection.FAILED, -1);
        }
    }

    public int upload(String file, InputStream in)
    {
        /*
           if(StringUtils.isRelative(file)) file = getPWD() + file;
           file = file.replace('\\','/');

           try
           {
                   work(new BufferedInputStream(in), file, file);
                   return 0;
           }
           catch(Exception ex)
           {
                   Log.debug("Error: " + ex.toString());
                   ex.printStackTrace();
                   return -1;
           }
           */
        Log.debug("Upload using InputStream is not implemented yet!");

        return -1;
    }

    /*
    private void work(BufferedInputStream in, String outfile, String file)
    {
     Log.out("transfer started, input from stream\noutfile: " + outfile);

     try
     {
             BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(outfile));
        byte buf[] = new byte[webdavBuffer];
        int len = 0;
        int reallen = 0;

        while(true)
        {
                len = in.read(buf);
                System.out.print(".");
                if(len == StreamTokenizer.TT_EOF) break;
                out.write(buf,0,len);

                reallen += len;
                fireProgressUpdate(StringUtils.getFile(file),DataConnection.GET, reallen);
        }

        out.flush();
        out.close();
        in.close();
        fireProgressUpdate(file,DataConnection.FINISHED, -1);
     }
     catch(IOException ex)
     {
             Log.debug("Error with file IO ("+ex+")!");
        ex.printStackTrace();
        fireProgressUpdate(file,DataConnection.FAILED, -1);
     }
    }
    */
    public InputStream getDownloadInputStream(String file)
    {
        if(StringUtils.isRelative(file))
        {
            file = getPWD() + file;
        }

        file = file.replace('\\', '/');

        try
        {
            return getResource(file).getMethodData();
        }
        catch(Exception ex)
        {
            ex.printStackTrace();
            Log.debug(ex.toString() +
                      " @WebdavConnection::getDownloadInputStream");

            return null;
        }
    }

    public void addConnectionListener(ConnectionListener l)
    {
        listeners.add(l);
    }

    public void setConnectionListeners(Vector l)
    {
        listeners = l;
    }

    /** remote directory has changed */
    public void fireDirectoryUpdate()
    {
        if(listeners == null)
        {
            return;
        }
        else
        {
            for(int i = 0; i < listeners.size(); i++)
            {
                ((ConnectionListener) listeners.elementAt(i)).updateRemoteDirectory(this);
            }
        }
    }

    public boolean login(String user, String pass)
    {
        return true;
    }

    public void fireProgressUpdate(String file, String type, int bytes)
    {
        if(listeners == null)
        {
            return;
        }
        else
        {
            for(int i = 0; i < listeners.size(); i++)
            {
                ConnectionListener listener = (ConnectionListener) listeners.elementAt(i);

                if(shortProgress && Settings.shortProgress)
                {
                    if(type.startsWith(DataConnection.DFINISHED))
                    {
                        listener.updateProgress(baseFile,
                                                DataConnection.DFINISHED + ":" +
                                                fileCount, bytes);
                    }

                    listener.updateProgress(baseFile,
                                            DataConnection.GETDIR + ":" +
                                            fileCount, bytes);
                }
                else
                {
                    listener.updateProgress(file, type, bytes);
                }
            }
        }
    }
}