smartupload.java

绝对很好的jsp学习资料

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi 
// Source File Name:   SmartUpload.java

package com.jspsmart.upload;

import java.io.*;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Vector;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.PageContext;

// Referenced classes of package com.jspsmart.upload:
//            Files, Request, SmartUploadException, File

public class SmartUpload
{

    protected byte m_binArray[];
    protected HttpServletRequest m_request;
    protected HttpServletResponse m_response;
    protected ServletContext m_application;
    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 Vector m_deniedFilesList;
    private Vector m_allowedFilesList;
    private boolean m_denyPhysicalPath;
    private boolean m_forcePhysicalPath;
    private String m_contentDisposition;
    public static final int SAVE_AUTO = 0;
    public static final int SAVE_VIRTUAL = 1;
    public static final int SAVE_PHYSICAL = 2;
    private Files m_files;
    private Request m_formRequest;

    public SmartUpload()
    {
        m_totalBytes = 0;
        m_currentIndex = 0;
        m_startData = 0;
        m_endData = 0;
        m_boundary = new String();
        m_totalMaxFileSize = 0L;
        m_maxFileSize = 0L;
        m_deniedFilesList = new Vector();
        m_allowedFilesList = new Vector();
        m_denyPhysicalPath = false;
        m_forcePhysicalPath = false;
        m_contentDisposition = new String();
        m_files = new Files();
        m_formRequest = new Request();
    }

    public final void init(ServletConfig servletconfig)
        throws ServletException
    {
        m_application = servletconfig.getServletContext();
    }

    public void service(HttpServletRequest httpservletrequest, HttpServletResponse httpservletresponse)
        throws ServletException, IOException
    {
        m_request = httpservletrequest;
        m_response = httpservletresponse;
    }

    public final void initialize(ServletConfig servletconfig, HttpServletRequest httpservletrequest, HttpServletResponse httpservletresponse)
        throws ServletException
    {
        m_application = servletconfig.getServletContext();
        m_request = httpservletrequest;
        m_response = httpservletresponse;
    }

    public final void initialize(PageContext pagecontext)
        throws ServletException
    {
        m_application = pagecontext.getServletContext();
        m_request = (HttpServletRequest)pagecontext.getRequest();
        m_response = (HttpServletResponse)pagecontext.getResponse();
    }

    public final void initialize(ServletContext servletcontext, HttpSession httpsession, HttpServletRequest httpservletrequest, HttpServletResponse httpservletresponse, JspWriter jspwriter)
        throws ServletException
    {
        m_application = servletcontext;
        m_request = httpservletrequest;
        m_response = httpservletresponse;
    }

    public void upload()
        throws ServletException, IOException, SmartUploadException
    {
        int i = 0;
        boolean flag = false;
        long l = 0L;
        boolean flag1 = false;
        String s = new String();
        String s2 = new String();
        String s4 = new String();
        String s5 = new String();
        String s6 = new String();
        String s7 = new String();
        String s8 = new String();
        String s9 = new String();
        String s10 = new String();
        boolean flag2 = false;
        m_totalBytes = m_request.getContentLength();
        m_binArray = new byte[m_totalBytes];
        int j;
        for(; i < m_totalBytes; i += j)
            try
            {
                m_request.getInputStream();
                j = m_request.getInputStream().read(m_binArray, i, m_totalBytes - i);
            }
            catch(Exception exception)
            {
                throw new SmartUploadException("Unable to upload.");
            }

        for(; !flag1 && m_currentIndex < m_totalBytes; m_currentIndex++)
            if(m_binArray[m_currentIndex] == 13)
                flag1 = true;
            else
                m_boundary = m_boundary + (char)m_binArray[m_currentIndex];

        if(m_currentIndex == 1)
            return;
        for(m_currentIndex++; m_currentIndex < m_totalBytes; m_currentIndex = m_currentIndex + 2)
        {
            String s1 = getDataHeader();
            m_currentIndex = m_currentIndex + 2;
            boolean flag3 = s1.indexOf("filename") > 0;
            String s3 = getDataFieldValue(s1, "name");
            if(flag3)
            {
                s6 = getDataFieldValue(s1, "filename");
                s4 = getFileName(s6);
                s5 = getFileExt(s4);
                s7 = getContentType(s1);
                s8 = getContentDisp(s1);
                s9 = getTypeMIME(s7);
                s10 = getSubTypeMIME(s7);
            }
            getDataSection();
            if(flag3 && s4.length() > 0)
            {
                if(m_deniedFilesList.contains(s5))
                    throw new SecurityException("The extension of the file is denied to be uploaded (1015).");
                if(!m_allowedFilesList.isEmpty() && !m_allowedFilesList.contains(s5))
                    throw new SecurityException("The extension of the file is not allowed to be uploaded (1010).");
                if(m_maxFileSize > 0L && (long)((m_endData - m_startData) + 1) > m_maxFileSize)
                    throw new SecurityException("Size exceeded for this file : " + s4 + " (1105).");
                l += (m_endData - m_startData) + 1;
                if(m_totalMaxFileSize > 0L && l > m_totalMaxFileSize)
                    throw new SecurityException("Total File Size exceeded (1110).");
            }
            if(flag3)
            {
                com.jspsmart.upload.File file = new com.jspsmart.upload.File();
                file.setParent(this);
                file.setFieldName(s3);
                file.setFileName(s4);
                file.setFileExt(s5);
                file.setFilePathName(s6);
                file.setIsMissing(s6.length() == 0);
                file.setContentType(s7);
                file.setContentDisp(s8);
                file.setTypeMIME(s9);
                file.setSubTypeMIME(s10);
                if(s7.indexOf("application/x-macbinary") > 0)
                    m_startData = m_startData + 128;
                file.setSize((m_endData - m_startData) + 1);
                file.setStartData(m_startData);
                file.setEndData(m_endData);
                m_files.addFile(file);
            } else
            {
                String s11 = new String(m_binArray, m_startData, (m_endData - m_startData) + 1);
                m_formRequest.putParameter(s3, s11);
            }
            if((char)m_binArray[m_currentIndex + 1] == '-')
                break;
        }

    }

    public int save(String s)
        throws ServletException, IOException, SmartUploadException
    {
        return save(s, 0);
    }

    public int save(String s, int i)
        throws ServletException, IOException, SmartUploadException
    {
        int j = 0;
        if(s == null)
            s = m_application.getRealPath("/");
        if(s.indexOf("/") != -1)
        {
            if(s.charAt(s.length() - 1) != '/')
                s = s + "/";
        } else
        if(s.charAt(s.length() - 1) != '\\')
            s = s + "\\";
        for(int k = 0; k < m_files.getCount(); k++)
            if(!m_files.getFile(k).isMissing())
            {
                m_files.getFile(k).saveAs(s + m_files.getFile(k).getFileName(), i);
                j++;
            }

        return j;
    }

    public int getSize()
    {
        return m_totalBytes;
    }

    public byte getBinaryData(int i)
    {
        byte byte0;
        try
        {
            byte0 = m_binArray[i];
        }
        catch(Exception exception)
        {
            throw new ArrayIndexOutOfBoundsException("Index out of range (1005).");
        }
        return byte0;
    }

    public Files getFiles()
    {
        return m_files;
    }

    public Request getRequest()
    {
        return m_formRequest;
    }

    public void downloadFile(String s)
        throws ServletException, IOException, SmartUploadException
    {
        downloadFile(s, null, null);
    }

    public void downloadFile(String s, String s1)
        throws ServletException, IOException, SmartUploadException, SmartUploadException
    {
        downloadFile(s, s1, null);
    }

    public void downloadFile(String s, String s1, String s2)
        throws ServletException, IOException, SmartUploadException
    {
        downloadFile(s, s1, s2, 65000);
    }

    public void downloadFile(String s, String s1, String s2, int i)
        throws ServletException, IOException, SmartUploadException
    {
        if(s == null)
            throw new IllegalArgumentException("File '" + s + "' not found (1040).");
        if(s.equals(""))
            throw new IllegalArgumentException("File '" + s + "' not found (1040).");
        if(!isVirtual(s) && m_denyPhysicalPath)
            throw new SecurityException("Physical path is denied (1035).");
        if(isVirtual(s))
            s = m_application.getRealPath(s);
        File file = new File(s);
        FileInputStream fileinputstream = new FileInputStream(file);
        long l = file.length();
        boolean flag = false;
        int k = 0;
        byte abyte0[] = new byte[i];
        if(s1 == null)
            m_response.setContentType("application/x-msdownload");
        else
        if(s1.length() == 0)
            m_response.setContentType("application/x-msdownload");
        else
            m_response.setContentType(s1);
        m_response.setContentLength((int)l);
        m_contentDisposition = m_contentDisposition != null ? m_contentDisposition : "attachment;";
        if(s2 == null)
            m_response.setHeader("Content-Disposition", m_contentDisposition + " filename=" + getFileName(s));
        else
        if(s2.length() == 0)
            m_response.setHeader("Content-Disposition", m_contentDisposition);
        else
            m_response.setHeader("Content-Disposition", m_contentDisposition + " filename=" + s2);
        while((long)k < l) 
        {
            int j = fileinputstream.read(abyte0, 0, i);
            k += j;
            m_response.getOutputStream().write(abyte0, 0, j);
        }
        fileinputstream.close();
    }

    public void downloadField(ResultSet resultset, String s, String s1, String s2)
        throws ServletException, IOException, SQLException
    {
        if(resultset == null)
            throw new IllegalArgumentException("The RecordSet cannot be null (1045).");
        if(s == null)
            throw new IllegalArgumentException("The columnName cannot be null (1050).");
        if(s.length() == 0)
            throw new IllegalArgumentException("The columnName cannot be empty (1055).");
        byte abyte0[] = resultset.getBytes(s);
        if(s1 == null)
            m_response.setContentType("application/x-msdownload");
        else
        if(s1.length() == 0)
            m_response.setContentType("application/x-msdownload");
        else
            m_response.setContentType(s1);
        m_response.setContentLength(abyte0.length);
        if(s2 == null)
            m_response.setHeader("Content-Disposition", "attachment;");
        else
        if(s2.length() == 0)
            m_response.setHeader("Content-Disposition", "attachment;");
        else
            m_response.setHeader("Content-Disposition", "attachment; filename=" + s2);
        m_response.getOutputStream().write(abyte0, 0, abyte0.length);
    }

    public void fieldToFile(ResultSet resultset, String s, String s1)
        throws ServletException, IOException, SmartUploadException, SQLException
    {
        try
        {
            if(m_application.getRealPath(s1) != null)
                s1 = m_application.getRealPath(s1);
            InputStream inputstream = resultset.getBinaryStream(s);
            FileOutputStream fileoutputstream = new FileOutputStream(s1);
            int i;
            while((i = inputstream.read()) != -1) 
                fileoutputstream.write(i);
            fileoutputstream.close();
        }
        catch(Exception exception)
        {
            throw new SmartUploadException("Unable to save file from the DataBase (1020).");
        }
    }

    private String getDataFieldValue(String s, String s1)
    {