Exception while uploading a zip file on Linux OS

[Anutosh Swamy]

Hi All,

I am getting an exception of

java.lang.IndexOutOfBoundsException
java.io.FileOutputStream.writeBytes(Native Method)
java.io.FileOutputStream.write(FileOutputStream.java:260)
com.aem.upload.ZipFileUploadServlet.processRequest(ZipFileUploadServlet.java:91)
com.aem.upload.ZipFileUploadServlet.doPost(ZipFileUploadServlet.java:115)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)

when I try uploading a ZIP file through my application running on Linux OS but the same is running fine on Windows OS (without any exception and uploading perfectly) kindly let me know where the code is wrong or I need to make some changes accordingly while making this run perfectly on Linux OS

Here's my Servlet code for uploading the Zip file:

ZipFileUploadServlet.java

 
public class ZipFileUploadServlet extends HttpServlet {
    
    /** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        System.out.println("ZIPFILESERVLET");
//        String ocswPath = Constant.OCSW_FILES_PATH;
//        String tlsPath = Constant.TLS_CERT_PATH;
//        String filePath="C:\\tftpboot\\ocswtest\\";
        String filePath="/tftpboot/ocsw/";
        String contentType = request.getContentType();
        if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0)) {
            System.out.println("Inside IF");
            System.out.println("CONTENT TYPE :: "+contentType);
            int lastIndex = contentType.lastIndexOf("=");
            String boundary = contentType.substring(lastIndex + 1, contentType.length());
            System.out.println("BOUNDARY :: "+boundary);
            DataInputStream in = new DataInputStream(request.getInputStream());
            int formDataLength = request.getContentLength();
            System.out.println("FORMDATALENGTH :: "+formDataLength);
            byte dataBytes[] = new byte[formDataLength];
            int byteRead = 0;
            int totalBytesRead = 0;
            while (totalBytesRead < formDataLength) {
                byteRead = in.read(dataBytes, totalBytesRead, formDataLength);
                totalBytesRead += byteRead;
            }
            System.out.println("TOTAL BYTE READ :: "+totalBytesRead);
            String file = new String(dataBytes);
            System.out.println(file);
            String fileType=file.substring(file.indexOf("name=\"")+6);
            fileType=fileType.substring(fileType.indexOf("\n"),fileType.indexOf(boundary)-2);
            fileType=fileType.trim();
            System.out.println("FILETYPE :: "+fileType.trim());
            System.out.println("LENGTH :: "+fileType.length());
            String fileName = file.substring(file.indexOf("filename=\"")+10);
            fileName=fileName.substring(0,fileName.indexOf("\n"));
            fileName=fileName.substring(fileName.lastIndexOf("\\")+1,fileName.indexOf("\""));
            System.out.println("FILENAME :: "+fileName);
//            if(fileType.equals("ocsw"))
//                filePath=ocswPath;
//            else
//                filePath=tlsPath;
            int pos;
    pos = file.indexOf("filename=\"");
    System.out.println("POS 1 :: "+pos);
            pos = file.indexOf("\n", pos) + 1;
    System.out.println("POS 2 :: "+pos);
            pos = file.indexOf("\n", pos) + 1;
    System.out.println("POS 3 :: "+pos);
            pos = file.indexOf("\n", pos) + 1;
            System.out.println("POS 4 :: "+pos);
            int boundaryLocation = file.indexOf(boundary, pos) - 4;
            int startPos = ((file.substring(0, pos)).getBytes()).length;
            int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length;
//            int endPos = file.indexOf(boundary, pos)-4;
            System.out.println("BOUNDARY LOCATION :: "+boundaryLocation);
            System.out.println("START POS :: "+startPos);
            System.out.println("END POS :: "+endPos);
            File newFile = new File(filePath+fileName);
                if(newFile.exists())
                    newFile.delete();
            System.out.println("FILE TO SAVE WITH PATH :: "+newFile);
            System.out.println("SIZE OF DATABYTES :: "+dataBytes.length);
            FileOutputStream fileOut = new FileOutputStream(newFile);
            fileOut.write(dataBytes, startPos, (endPos - startPos));
            fileOut.flush();
            fileOut.close();
            System.out.println("UPLOAD COMPLETED");
            response.sendRedirect("../index.jsp");
        }
    }
 

index.jsp

  
 
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html">
        <title>JSP Page</title>
    </head>
    <body>
 
    <form name="fu" method="post" action="./file/zipupload" enctype="multipart/form-data">
        <input type="text" name="fileType" value="ocsw">
        <input type="file" name="file1"> 
        <input type="submit" name="submit" value="Upload">
    </form>
    
    </body>
</html>
 

Thank you in Advance

[Nitin Pathak]

There seems to be the problem with the length argument (endPos - startPos) of write(). As the exception clearly suggests, the code is trying to access the memory location outside the already-rigidly-assigned space.

[Bauke Scholtz]

Oh no, not again that roseindia.net ripoff.

Please read my answer in this topic: https://coderanch.com/t/414105/Servlets/java/Upload-Download-File