smartupload.java

一个图片管理程序

// 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 {
    public static final int SAVE_AUTO = 0;
    public static final int SAVE_VIRTUAL = 1;
    public static final int SAVE_PHYSICAL = 2;
    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;
    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 config) throws ServletException {
        m_application = config.getServletContext();
    }

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

    public final void initialize(ServletConfig config, HttpServletRequest request, HttpServletResponse response) throws ServletException {
        m_application = config.getServletContext();
        m_request = request;
        m_response = response;
    }

    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 application, HttpSession session, HttpServletRequest request, HttpServletResponse response, JspWriter out) throws ServletException {
        m_application = application;
        m_request = request;
        m_response = response;
    }

    public void upload() throws SmartUploadException, IOException, ServletException {
        int totalRead = 0;
        int readBytes = 0;
        long totalFileSize = 0L;
        boolean found = false;
        String dataHeader = new String();
        String fieldName = new String();
        String fileName = new String();
        String fileExt = new String();
        String filePathName = new String();
        String contentType = new String();
        String contentDisp = new String();
        String typeMIME = new String();
        String subTypeMIME = new String();
        boolean isFile = false;
        m_totalBytes = m_request.getContentLength();
        m_binArray = new byte[m_totalBytes];

        for(; totalRead < m_totalBytes; totalRead += readBytes) {
            try {
                m_request.getInputStream();
                readBytes = m_request.getInputStream().read(m_binArray, totalRead, m_totalBytes - totalRead);
            } catch(Exception e) {
                throw new SmartUploadException("Unable to upload.");
            }
        }

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

        if(m_currentIndex == 1) {
            return;
        }

        m_currentIndex++;

        do {
            if(m_currentIndex >= m_totalBytes) {
                break;
            }

            dataHeader = getDataHeader();
            m_currentIndex = m_currentIndex + 2;
            isFile = dataHeader.indexOf("filename") > 0;
            fieldName = getDataFieldValue(dataHeader, "name");

            if(isFile) {
                filePathName = getDataFieldValue(dataHeader, "filename");
                fileName = getFileName(filePathName);
                fileExt = getFileExt(fileName);
                contentType = getContentType(dataHeader);
                contentDisp = getContentDisp(dataHeader);
                typeMIME = getTypeMIME(contentType);
                subTypeMIME = getSubTypeMIME(contentType);
            }

            getDataSection();

            if(isFile && (fileName.length() > 0)) {
                if(m_deniedFilesList.contains(fileExt)) {
                    throw new SecurityException("The extension of the file is denied to be uploaded (1015).");
                }

                if(!m_allowedFilesList.isEmpty() && !m_allowedFilesList.contains(fileExt)) {
                    throw new SecurityException("The extension of the file is not allowed to be uploaded (1010).");
                }

                if((m_maxFileSize > (long)0) && ((long)((m_endData - m_startData) + 1) > m_maxFileSize)) {
                    throw new SecurityException(String.valueOf((new StringBuffer("Size exceeded for this file : ")).append(fileName).append(" (1105).")));
                }

                totalFileSize += ((m_endData - m_startData) + 1);

                if((m_totalMaxFileSize > (long)0) && (totalFileSize > m_totalMaxFileSize)) {
                    throw new SecurityException("Total File Size exceeded (1110).");
                }
            }

            if(isFile) {
                com.jspsmart.upload.File newFile = new com.jspsmart.upload.File();
                newFile.setParent(this);
                newFile.setFieldName(fieldName);
                newFile.setFileName(fileName);
                newFile.setFileExt(fileExt);
                newFile.setFilePathName(filePathName);
                newFile.setIsMissing(filePathName.length() == 0);
                newFile.setContentType(contentType);
                newFile.setContentDisp(contentDisp);
                newFile.setTypeMIME(typeMIME);
                newFile.setSubTypeMIME(subTypeMIME);

                if(contentType.indexOf("application/x-macbinary") > 0) {
                    m_startData = m_startData + 128;
                }

                newFile.setSize((m_endData - m_startData) + 1);
                newFile.setStartData(m_startData);
                newFile.setEndData(m_endData);
                m_files.addFile(newFile);
            } else {
                String value = new String(m_binArray, m_startData, (m_endData - m_startData) + 1);
                m_formRequest.putParameter(fieldName, value);
            }

            if((char)m_binArray[m_currentIndex + 1] == '-') {
                break;
            }

            m_currentIndex = m_currentIndex + 2;
        } while(true);
    }

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

    public int save(String destPathName, int option) throws SmartUploadException, IOException, ServletException {
        int count = 0;

        if(destPathName == null) {
            destPathName = m_application.getRealPath("/");
        }

        if(destPathName.indexOf("/") != -1) {
            if(destPathName.charAt(destPathName.length() - 1) != '/') {
                destPathName = String.valueOf(destPathName).concat("/");
            }
        } else if(destPathName.charAt(destPathName.length() - 1) != '\\') {
            destPathName = String.valueOf(destPathName).concat("\\");
        }

        for(int i = 0; i < m_files.getCount(); i++) {
            if(!m_files.getFile(i).isMissing()) {
                m_files.getFile(i).saveAs(destPathName + m_files.getFile(i).getFileName(), option);
                count++;
            }
        }

        return count;
    }

    public int getSize() {
        return m_totalBytes;
    }

    public byte getBinaryData(int index) {
        byte retval;

        try {
            retval = m_binArray[index];
        } catch(Exception e) {
            throw new ArrayIndexOutOfBoundsException("Index out of range (1005).");
        }

        return retval;
    }

    public Files getFiles() {
        return m_files;
    }

    public Request getRequest() {
        return m_formRequest;
    }

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

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

    public void downloadFile(String sourceFilePathName, String contentType, String destFileName) throws SmartUploadException, IOException, ServletException {
        downloadFile(sourceFilePathName, contentType, destFileName, 65000);
    }

    public void downloadFile(String sourceFilePathName, String contentType, String destFileName, int blockSize) throws SmartUploadException, IOException, ServletException {
        if(sourceFilePathName == null) {
            throw new IllegalArgumentException(String.valueOf((new StringBuffer("File '")).append(sourceFilePathName).append("' not found (1040).")));
        }

        if(sourceFilePathName.equals("")) {
            throw new IllegalArgumentException(String.valueOf((new StringBuffer("File '")).append(sourceFilePathName).append("' not found (1040).")));
        }

        if(!isVirtual(sourceFilePathName) && m_denyPhysicalPath) {
            throw new SecurityException("Physical path is denied (1035).");
        }

        if(isVirtual(sourceFilePathName)) {
            sourceFilePathName = m_application.getRealPath(sourceFilePathName);
        }

        //TODO
        // edit by zyg
        java.io.File file = new java.io.File(sourceFilePathName);

        // end edit
        FileInputStream fileIn = new FileInputStream(file);
        long fileLen = file.length();
        int readBytes = 0;
        int totalRead = 0;
        byte b[] = new byte[blockSize];

        if(contentType == null) {
            m_response.setContentType("application/x-msdownload");
        } else if(contentType.length() == 0) {
            m_response.setContentType("application/x-msdownload");
        } else {
            m_response.setContentType(contentType);
        }

        m_response.setContentLength((int)fileLen);
        m_contentDisposition = (m_contentDisposition != null) ? m_contentDisposition : "attachment;";

        if(destFileName == null) {
            m_response.setHeader("Content-Disposition", String.valueOf((new StringBuffer(String.valueOf(m_contentDisposition))).append(" filename=").append(getFileName(sourceFilePathName))));
        } else if(destFileName.length() == 0) {
            m_response.setHeader("Content-Disposition", m_contentDisposition);
        } else {
            m_response.setHeader("Content-Disposition", String.valueOf((new StringBuffer(String.valueOf(m_contentDisposition))).append(" filename=").append(destFileName)));
        }

        while((long)totalRead < fileLen) {
            readBytes = fileIn.read(b, 0, blockSize);
            totalRead += readBytes;
            m_response.getOutputStream().write(b, 0, readBytes);
        }

        fileIn.close();
    }

    public void downloadField(ResultSet rs, String columnName, String contentType, String destFileName) throws SQLException, IOException, ServletException {
        if(rs == null) {
            throw new IllegalArgumentException("The RecordSet cannot be null (1045).");
        }

        if(columnName == null) {
            throw new IllegalArgumentException("The columnName cannot be null (1050).");
        }

        if(columnName.length() == 0) {
            throw new IllegalArgumentException("The columnName cannot be empty (1055).");
        }

        byte b[] = rs.getBytes(columnName);

        if(contentType == null) {
            m_response.setContentType("application/x-msdownload");
        } else if(contentType.length() == 0) {
            m_response.setContentType("application/x-msdownload");
        } else {
            m_response.setContentType(contentType);
        }

        m_response.setContentLength(b.length);

        if(destFileName == null) {
            m_response.setHeader("Content-Disposition", "attachment;");
        } else if(destFileName.length() == 0) {
            m_response.setHeader("Content-Disposition", "attachment;");
        } else {
            m_response.setHeader("Content-Disposition", "attachment; filename=".concat(String.valueOf(destFileName)));
        }

        m_response.getOutputStream().write(b, 0, b.length);
    }

    public void fieldToFile(ResultSet rs, String columnName, String destFilePathName) throws SQLException, SmartUploadException, IOException, ServletException {
        try {
            if(m_application.getRealPath(destFilePathName) != null) {
                destFilePathName = m_application.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();