smartupload.java

用于JSP1.0 开发的一个类似于动网的BBS论坛。 数据库是DB2＋JSP＋javaBean

		    sb.append("%" + Integer.toHexString(k).
		    toUpperCase());
		}
	    }
	}
	return sb.toString();
    }

    public void fieldToFile(ResultSet rs, String columnName, String destFilePathName)
        throws SQLException, SmartUploadException, IOException, ServletException
    {
        try
        {
            if(config.getServletContext().getRealPath(destFilePathName) != null)
                destFilePathName = config.getServletContext().getRealPath(destFilePathName);
            InputStream is_data = rs.getBinaryStream(columnName);
            FileOutputStream file = new FileOutputStream(destFilePathName);
            int c;
            while((c = is_data.read()) != -1) 
                file.write(c);
            file.close();
        }
        catch(Exception e)
        {
            throw new SmartUploadException("Unable to save file from the DataBase (1020).");
        }
    }

    private String getDataFieldValue(String dataHeader, String fieldName)
    {
        String token = new String();
        String value = new String();
        int pos = 0;
        int i = 0;
        int start = 0;
        int end = 0;
        token = String.valueOf((new StringBuffer(String.valueOf(fieldName))).append("=").append('"'));
        pos = dataHeader.indexOf(token);
        if(pos > 0)
        {
            i = pos + token.length();
            start = i;
            token = "\"";
            end = dataHeader.indexOf(token, i);
            if(start > 0 && end > 0)
                value = dataHeader.substring(start, end);
        }
        return value;
    }

    private String getFileExt(String fileName)
    {
        String token = new String();
        String value = new String();
        int pos = 0;
        int i = 0;
        int start = 0;
        int end = 0;
        if(fileName == null)
        {
            return null;
        } else
        {
            start = fileName.lastIndexOf(46) + 1;
            end = fileName.length();
            value = fileName.substring(start, end);
            return value;
        }
    }

    private String getContentType(String dataHeader)
    {
        String token = new String();
        String value = new String();
        int start = 0;
        int end = 0;
        token = "Content-Type:";
        start = dataHeader.indexOf(token) + token.length();
        if(start != -1)
        {
            end = dataHeader.length();
            value = dataHeader.substring(start, end);
        }
        return value;
    }

    private String getTypeMIME(String ContentType)
    {
        String value = new String();
        int pos = 0;
        pos = ContentType.indexOf("/");
        if(pos != -1)
            return ContentType.substring(1, pos);
        else
            return ContentType;
    }

    private String getSubTypeMIME(String ContentType)
    {
        String value = new String();
        int start = 0;
        int end = 0;
        start = ContentType.indexOf("/") + 1;
        if(start != -1)
        {
            end = ContentType.length();
            return ContentType.substring(start, end);
        } else
        {
            return ContentType;
        }
    }

    private String getContentDisp(String dataHeader)
    {
        String value = new String();
        int start = 0;
        int end = 0;
        start = dataHeader.indexOf(":") + 1;
        end = dataHeader.indexOf(";");
        value = dataHeader.substring(start, end);
        return value;
    }

    private void getDataSection()
    {
        boolean found = false;
        String dataHeader = new String();
        int searchPos = m_currentIndex;
        int keyPos = 0;
        int boundaryLen = m_boundary.length();
        m_startData = m_currentIndex;
        m_endData = 0;
        do
        {
            if(searchPos >= m_totalBytes)
                break;
            if(m_binArray[searchPos] == (byte)m_boundary.charAt(keyPos))
            {
                if(keyPos == boundaryLen - 1)
                {
                    m_endData = ((searchPos - boundaryLen) + 1) - 3;
                    break;
                }
                searchPos++;
                keyPos++;
            } else
            {
                searchPos++;
                keyPos = 0;
            }
        } while(true);
        m_currentIndex = m_endData + boundaryLen + 3;
    }

    private String getDataHeader()
    {
        int start = m_currentIndex;
        int end = 0;
        int len = 0;
        boolean found = false;
        while(!found) 
            if(m_binArray[m_currentIndex] == 13 && m_binArray[m_currentIndex + 2] == 13)
            {
                found = true;
                end = m_currentIndex - 1;
                m_currentIndex = m_currentIndex + 2;
            } else
            {
                m_currentIndex++;
            }
        String dataHeader = new String(m_binArray, start, (end - start) + 1);
        return dataHeader;
    }

    private String getFileName(String filePathName)
    {
        String token = new String();
        String value = new String();
        int pos = 0;
        int i = 0;
        int start = 0;
        int end = 0;
        pos = filePathName.lastIndexOf(47);
        if(pos != -1)
            return filePathName.substring(pos + 1, filePathName.length());
        pos = filePathName.lastIndexOf(92);
        if(pos != -1)
            return filePathName.substring(pos + 1, filePathName.length());
        else
            return filePathName;
    }

    public void setDeniedFilesList(String deniedFilesList)
        throws SQLException, IOException, ServletException
    {
        int pos = 1;
        int cpt = 0;
        String ext = "";
        if(deniedFilesList != null)
        {
            for(int i = 0; i < deniedFilesList.length(); i++)
            {
                ext = ext + deniedFilesList.charAt(i);
                if(deniedFilesList.charAt(i) == ',')
                {
                    ext = ext.substring(0, ext.length() - 1);
                    m_deniedFilesList.put(new Integer(pos), ext);
                    ext = "";
                    pos++;
                }
                if(i + 1 == deniedFilesList.length() && ext != "")
                {
                    m_deniedFilesList.put(new Integer(pos), ext);
                    ext = "";
                    pos++;
                }
            }

        } else
        {
            m_deniedFilesList = null;
        }
    }

    public void setAllowedFilesList(String allowedFilesList)
    {
        int pos = 1;
        int cpt = 0;
        String ext = "";
        if(allowedFilesList != null)
        {
            for(int i = 0; i < allowedFilesList.length(); i++)
            {
                ext = ext + allowedFilesList.charAt(i);
                if(allowedFilesList.charAt(i) == ',')
                {
                    ext = ext.substring(0, ext.length() - 1);
                    m_allowedFilesList.put(new Integer(pos), ext);
                    ext = "";
                    pos++;
                }
                if(i + 1 == allowedFilesList.length() && ext != "")
                {
                    m_allowedFilesList.put(new Integer(pos), ext);
                    ext = "";
                    pos++;
                }
            }

        } else
        {
            m_allowedFilesList = null;
        }
    }

    public void setDenyPhysicalPath(boolean deny)
    {
        m_denyPhysicalPath = deny;
    }

    public void setContentDisposition(String contentDisposition)
    {
        m_contentDisposition = contentDisposition;
    }

    public void setTotalMaxFileSize(long totalMaxFileSize)
    {
        m_totalMaxFileSize = totalMaxFileSize;
    }

    public void setMaxFileSize(long maxFileSize)
    {
        m_maxFileSize = maxFileSize;
    }

    protected String getPhysicalPath(String path)
        throws IOException
    {
        if(path == null)
            throw new IllegalArgumentException("There is no specified destination file (1140).");
        if(path.length() == 0)
            throw new IllegalArgumentException("There is no specified destination file (1140).");
        if(config.getServletContext().getRealPath(path) == null && m_denyPhysicalPath)
            throw new IllegalArgumentException("Physical path is denied (1125).");
        if(config.getServletContext().getRealPath(path) == null && !m_denyPhysicalPath)
            return path;
        else
            return config.getServletContext().getRealPath(path);
    }

    public void uploadInFile(String destFilePathName)
        throws SmartUploadException, IOException
    {
        int intsize = 0;
        int pos = 0;
        int readBytes = 0;
        if(destFilePathName == null)
            throw new IllegalArgumentException("There is no specified destination file (1025).");
        if(destFilePathName.length() == 0)
            throw new IllegalArgumentException("There is no specified destination file (1025).");
        if(config.getServletContext().getRealPath(destFilePathName) == null && m_denyPhysicalPath)
            throw new SecurityException("Physical path is denied (1035).");
        intsize = m_request.getContentLength();
        m_binArray = new byte[intsize];
        for(; pos < intsize; pos += readBytes)
            try
            {
                readBytes = m_request.getInputStream().read(m_binArray, pos, intsize - pos);
            }
            catch(Exception exception) { }

        if(config.getServletContext().getRealPath(destFilePathName) != null)
            destFilePathName = config.getServletContext().getRealPath(destFilePathName);
        try
        {
            File file = new File(destFilePathName);
            file.createNewFile();
            FileOutputStream fileOut = new FileOutputStream(file);
            fileOut.write(m_binArray);
            fileOut.close();
        }
        catch(Exception e)
        {
            throw new SmartUploadException("The Form cannot be saved in the specified file (1030).");
        }
    }

    protected byte m_binArray[];
    protected HttpServletRequest m_request;
    protected HttpServletResponse m_response;
    private int m_totalBytes;
    private int m_currentIndex;
    private int m_startData;
    private int m_endData;
    private String m_boundary;
    private long m_totalMaxFileSize;
    private long m_maxFileSize;
    private Hashtable m_deniedFilesList;
    private Hashtable m_allowedFilesList;
    private boolean m_denyPhysicalPath;
    private String m_contentDisposition;
    private Files m_files;
    private Request m_formRequest;
    private ServletConfig config;
}