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fuzzlove/file-browser.jsp

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Created January 31, 2019 23:03
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Revisions

  1. @nikallass nikallass revised this gist Apr 30, 2018. No changes.
  2. @nikallass nikallass created this gist Apr 30, 2018.
    1,944 changes: 1,944 additions & 0 deletions file-browser.jsp
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    <%--
    jsp File browser 1.2.1
    nikallass added OS check, so shell can be executed on Windows and Linux without modifying now.
    Copyright (C) 2003-2006 Boris von Loesch
    This program is free software; you can redistribute it and/or modify it under
    the terms of the GNU General Public License as published by the
    Free Software Foundation; either version 2 of the License, or (at your option)
    any later version.
    This program is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
    You should have received a copy of the GNU General Public License along with
    this program; if not, write to the
    Free Software Foundation, Inc.,
    59 Temple Place, Suite 330,
    Boston, MA 02111-1307 USA
    - Description: jsp File browser v1.2 -- This JSP program allows remote web-based
    file access and manipulation. You can copy, create, move and delete files.
    Text files can be edited and groups of files and folders can be downloaded
    as a single zip file that's created on the fly.
    - Credits: Taylor Bastien, David Levine, David Cowan, Lieven Govaerts
    --%>
    <%@page import="java.util.*,
    java.net.*,
    java.text.*,
    java.util.zip.*,
    java.io.*"
    %>
    <%!
    //FEATURES
    private static final boolean NATIVE_COMMANDS = true;
    /**
    *If true, all operations (besides upload and native commands)
    *which change something on the file system are permitted
    */
    private static final boolean READ_ONLY = false;
    //If true, uploads are allowed even if READ_ONLY = true
    private static final boolean ALLOW_UPLOAD = true;
    //Allow browsing and file manipulation only in certain directories
    private static final boolean RESTRICT_BROWSING = false;
    //If true, the user is allowed to browse only in RESTRICT_PATH,
    //if false, the user is allowed to browse all directories besides RESTRICT_PATH
    private static final boolean RESTRICT_WHITELIST = false;
    //Paths, sperated by semicolon
    //private static final String RESTRICT_PATH = "C:\\CODE;E:\\"; //Win32: Case important!!
    private static final String RESTRICT_PATH = "/etc;/var";
    //The refresh time in seconds of the upload monitor window
    private static final int UPLOAD_MONITOR_REFRESH = 2;
    //The number of colums for the edit field
    private static final int EDITFIELD_COLS = 85;
    //The number of rows for the edit field
    private static final int EDITFIELD_ROWS = 30;
    //Open a new window to view a file
    private static final boolean USE_POPUP = true;
    /**
    * If USE_DIR_PREVIEW = true, then for every directory a tooltip will be
    * created (hold the mouse over the link) with the first DIR_PREVIEW_NUMBER entries.
    * This can yield to performance issues. Turn it off, if the directory loads to slow.
    */
    private static final boolean USE_DIR_PREVIEW = false;
    private static final int DIR_PREVIEW_NUMBER = 10;
    /**
    * The name of an optional CSS Stylesheet file
    */
    private static final String CSS_NAME = "Browser.css";
    /**
    * The compression level for zip file creation (0-9)
    * 0 = No compression
    * 1 = Standard compression (Very fast)
    * ...
    * 9 = Best compression (Very slow)
    */
    private static final int COMPRESSION_LEVEL = 1;
    /**
    * The FORBIDDEN_DRIVES are not displayed on the list. This can be usefull, if the
    * server runs on a windows platform, to avoid a message box, if you try to access
    * an empty removable drive (See KNOWN BUGS in Readme.txt).
    */
    private static final String[] FORBIDDEN_DRIVES = {"a:\\"};
    /**
    * Command of the shell interpreter and the parameter to run a programm
    */
    private static final String[] WINDOWS_COMMAND_INTERPRETER = {"cmd", "/C"}; // Dos,Windows
    private static final String[] LINUX_COMMAND_INTERPRETER = {"/bin/sh","-c"}; // Unix
    /**
    * Max time in ms a process is allowed to run, before it will be terminated
    */
    private static final long MAX_PROCESS_RUNNING_TIME = 30 * 1000; //30 seconds
    //Button names
    private static final String SAVE_AS_ZIP = "Download selected files as (z)ip";
    private static final String RENAME_FILE = "(R)ename File";
    private static final String DELETE_FILES = "(Del)ete selected files";
    private static final String CREATE_DIR = "Create (D)ir";
    private static final String CREATE_FILE = "(C)reate File";
    private static final String MOVE_FILES = "(M)ove Files";
    private static final String COPY_FILES = "Cop(y) Files";
    private static final String LAUNCH_COMMAND = "(L)aunch external program";
    private static final String UPLOAD_FILES = "Upload";
    //Normally you should not change anything after this line
    //----------------------------------------------------------------------------------
    //Change this to locate the tempfile directory for upload (not longer needed)
    private static String tempdir = ".";
    private static String VERSION_NR = "1.2";
    private static DateFormat dateFormat = DateFormat.getDateTimeInstance();
    public class UplInfo {
    public long totalSize;
    public long currSize;
    public long starttime;
    public boolean aborted;
    public UplInfo() {
    totalSize = 0l;
    currSize = 0l;
    starttime = System.currentTimeMillis();
    aborted = false;
    }
    public UplInfo(int size) {
    totalSize = size;
    currSize = 0;
    starttime = System.currentTimeMillis();
    aborted = false;
    }
    public String getUprate() {
    long time = System.currentTimeMillis() - starttime;
    if (time != 0) {
    long uprate = currSize * 1000 / time;
    return convertFileSize(uprate) + "/s";
    }
    else return "n/a";
    }
    public int getPercent() {
    if (totalSize == 0) return 0;
    else return (int) (currSize * 100 / totalSize);
    }
    public String getTimeElapsed() {
    long time = (System.currentTimeMillis() - starttime) / 1000l;
    if (time - 60l >= 0){
    if (time % 60 >=10) return time / 60 + ":" + (time % 60) + "m";
    else return time / 60 + ":0" + (time % 60) + "m";
    }
    else return time<10 ? "0" + time + "s": time + "s";
    }
    public String getTimeEstimated() {
    if (currSize == 0) return "n/a";
    long time = System.currentTimeMillis() - starttime;
    time = totalSize * time / currSize;
    time /= 1000l;
    if (time - 60l >= 0){
    if (time % 60 >=10) return time / 60 + ":" + (time % 60) + "m";
    else return time / 60 + ":0" + (time % 60) + "m";
    }
    else return time<10 ? "0" + time + "s": time + "s";
    }
    }
    public class FileInfo {
    public String name = null, clientFileName = null, fileContentType = null;
    private byte[] fileContents = null;
    public File file = null;
    public StringBuffer sb = new StringBuffer(100);
    public void setFileContents(byte[] aByteArray) {
    fileContents = new byte[aByteArray.length];
    System.arraycopy(aByteArray, 0, fileContents, 0, aByteArray.length);
    }
    }
    public static class UploadMonitor {
    static Hashtable uploadTable = new Hashtable();
    static void set(String fName, UplInfo info) {
    uploadTable.put(fName, info);
    }
    static void remove(String fName) {
    uploadTable.remove(fName);
    }
    static UplInfo getInfo(String fName) {
    UplInfo info = (UplInfo) uploadTable.get(fName);
    return info;
    }
    }
    // A Class with methods used to process a ServletInputStream
    public class HttpMultiPartParser {
    //private final String lineSeparator = System.getProperty("line.separator", "\n");
    private final int ONE_MB = 1024 * 1;
    public Hashtable processData(ServletInputStream is, String boundary, String saveInDir,
    int clength) throws IllegalArgumentException, IOException {
    if (is == null) throw new IllegalArgumentException("InputStream");
    if (boundary == null || boundary.trim().length() < 1) throw new IllegalArgumentException(
    "\"" + boundary + "\" is an illegal boundary indicator");
    boundary = "--" + boundary;
    StringTokenizer stLine = null, stFields = null;
    FileInfo fileInfo = null;
    Hashtable dataTable = new Hashtable(5);
    String line = null, field = null, paramName = null;
    boolean saveFiles = (saveInDir != null && saveInDir.trim().length() > 0);
    boolean isFile = false;
    if (saveFiles) { // Create the required directory (including parent dirs)
    File f = new File(saveInDir);
    f.mkdirs();
    }
    line = getLine(is);
    if (line == null || !line.startsWith(boundary)) throw new IOException(
    "Boundary not found; boundary = " + boundary + ", line = " + line);
    while (line != null) {
    if (line == null || !line.startsWith(boundary)) return dataTable;
    line = getLine(is);
    if (line == null) return dataTable;
    stLine = new StringTokenizer(line, ";\r\n");
    if (stLine.countTokens() < 2) throw new IllegalArgumentException(
    "Bad data in second line");
    line = stLine.nextToken().toLowerCase();
    if (line.indexOf("form-data") < 0) throw new IllegalArgumentException(
    "Bad data in second line");
    stFields = new StringTokenizer(stLine.nextToken(), "=\"");
    if (stFields.countTokens() < 2) throw new IllegalArgumentException(
    "Bad data in second line");
    fileInfo = new FileInfo();
    stFields.nextToken();
    paramName = stFields.nextToken();
    isFile = false;
    if (stLine.hasMoreTokens()) {
    field = stLine.nextToken();
    stFields = new StringTokenizer(field, "=\"");
    if (stFields.countTokens() > 1) {
    if (stFields.nextToken().trim().equalsIgnoreCase("filename")) {
    fileInfo.name = paramName;
    String value = stFields.nextToken();
    if (value != null && value.trim().length() > 0) {
    fileInfo.clientFileName = value;
    isFile = true;
    }
    else {
    line = getLine(is); // Skip "Content-Type:" line
    line = getLine(is); // Skip blank line
    line = getLine(is); // Skip blank line
    line = getLine(is); // Position to boundary line
    continue;
    }
    }
    }
    else if (field.toLowerCase().indexOf("filename") >= 0) {
    line = getLine(is); // Skip "Content-Type:" line
    line = getLine(is); // Skip blank line
    line = getLine(is); // Skip blank line
    line = getLine(is); // Position to boundary line
    continue;
    }
    }
    boolean skipBlankLine = true;
    if (isFile) {
    line = getLine(is);
    if (line == null) return dataTable;
    if (line.trim().length() < 1) skipBlankLine = false;
    else {
    stLine = new StringTokenizer(line, ": ");
    if (stLine.countTokens() < 2) throw new IllegalArgumentException(
    "Bad data in third line");
    stLine.nextToken(); // Content-Type
    fileInfo.fileContentType = stLine.nextToken();
    }
    }
    if (skipBlankLine) {
    line = getLine(is);
    if (line == null) return dataTable;
    }
    if (!isFile) {
    line = getLine(is);
    if (line == null) return dataTable;
    dataTable.put(paramName, line);
    // If parameter is dir, change saveInDir to dir
    if (paramName.equals("dir")) saveInDir = line;
    line = getLine(is);
    continue;
    }
    try {
    UplInfo uplInfo = new UplInfo(clength);
    UploadMonitor.set(fileInfo.clientFileName, uplInfo);
    OutputStream os = null;
    String path = null;
    if (saveFiles) os = new FileOutputStream(path = getFileName(saveInDir,
    fileInfo.clientFileName));
    else os = new ByteArrayOutputStream(ONE_MB);
    boolean readingContent = true;
    byte previousLine[] = new byte[2 * ONE_MB];
    byte temp[] = null;
    byte currentLine[] = new byte[2 * ONE_MB];
    int read, read3;
    if ((read = is.readLine(previousLine, 0, previousLine.length)) == -1) {
    line = null;
    break;
    }
    while (readingContent) {
    if ((read3 = is.readLine(currentLine, 0, currentLine.length)) == -1) {
    line = null;
    uplInfo.aborted = true;
    break;
    }
    if (compareBoundary(boundary, currentLine)) {
    os.write(previousLine, 0, read - 2);
    line = new String(currentLine, 0, read3);
    break;
    }
    else {
    os.write(previousLine, 0, read);
    uplInfo.currSize += read;
    temp = currentLine;
    currentLine = previousLine;
    previousLine = temp;
    read = read3;
    }//end else
    }//end while
    os.flush();
    os.close();
    if (!saveFiles) {
    ByteArrayOutputStream baos = (ByteArrayOutputStream) os;
    fileInfo.setFileContents(baos.toByteArray());
    }
    else fileInfo.file = new File(path);
    dataTable.put(paramName, fileInfo);
    uplInfo.currSize = uplInfo.totalSize;
    }//end try
    catch (IOException e) {
    throw e;
    }
    }
    return dataTable;
    }
    /**
    * Compares boundary string to byte array
    */
    private boolean compareBoundary(String boundary, byte ba[]) {
    if (boundary == null || ba == null) return false;
    for (int i = 0; i < boundary.length(); i++)
    if ((byte) boundary.charAt(i) != ba[i]) return false;
    return true;
    }
    /** Convenience method to read HTTP header lines */
    private synchronized String getLine(ServletInputStream sis) throws IOException {
    byte b[] = new byte[1024];
    int read = sis.readLine(b, 0, b.length), index;
    String line = null;
    if (read != -1) {
    line = new String(b, 0, read);
    if ((index = line.indexOf('\n')) >= 0) line = line.substring(0, index - 1);
    }
    return line;
    }
    public String getFileName(String dir, String fileName) throws IllegalArgumentException {
    String path = null;
    if (dir == null || fileName == null) throw new IllegalArgumentException(
    "dir or fileName is null");
    int index = fileName.lastIndexOf('/');
    String name = null;
    if (index >= 0) name = fileName.substring(index + 1);
    else name = fileName;
    index = name.lastIndexOf('\\');
    if (index >= 0) fileName = name.substring(index + 1);
    path = dir + File.separator + fileName;
    if (File.separatorChar == '/') return path.replace('\\', File.separatorChar);
    else return path.replace('/', File.separatorChar);
    }
    } //End of class HttpMultiPartParser
    /**
    * This class is a comparator to sort the filenames and dirs
    */
    class FileComp implements Comparator {
    int mode;
    int sign;
    FileComp() {
    this.mode = 1;
    this.sign = 1;
    }
    /**
    * @param mode sort by 1=Filename, 2=Size, 3=Date, 4=Type
    * The default sorting method is by Name
    * Negative mode means descending sort
    */
    FileComp(int mode) {
    if (mode < 0) {
    this.mode = -mode;
    sign = -1;
    }
    else {
    this.mode = mode;
    this.sign = 1;
    }
    }
    public int compare(Object o1, Object o2) {
    File f1 = (File) o1;
    File f2 = (File) o2;
    if (f1.isDirectory()) {
    if (f2.isDirectory()) {
    switch (mode) {
    //Filename or Type
    case 1:
    case 4:
    return sign
    * f1.getAbsolutePath().toUpperCase().compareTo(
    f2.getAbsolutePath().toUpperCase());
    //Filesize
    case 2:
    return sign * (new Long(f1.length()).compareTo(new Long(f2.length())));
    //Date
    case 3:
    return sign
    * (new Long(f1.lastModified())
    .compareTo(new Long(f2.lastModified())));
    default:
    return 1;
    }
    }
    else return -1;
    }
    else if (f2.isDirectory()) return 1;
    else {
    switch (mode) {
    case 1:
    return sign
    * f1.getAbsolutePath().toUpperCase().compareTo(
    f2.getAbsolutePath().toUpperCase());
    case 2:
    return sign * (new Long(f1.length()).compareTo(new Long(f2.length())));
    case 3:
    return sign
    * (new Long(f1.lastModified()).compareTo(new Long(f2.lastModified())));
    case 4: { // Sort by extension
    int tempIndexf1 = f1.getAbsolutePath().lastIndexOf('.');
    int tempIndexf2 = f2.getAbsolutePath().lastIndexOf('.');
    if ((tempIndexf1 == -1) && (tempIndexf2 == -1)) { // Neither have an extension
    return sign
    * f1.getAbsolutePath().toUpperCase().compareTo(
    f2.getAbsolutePath().toUpperCase());
    }
    // f1 has no extension
    else if (tempIndexf1 == -1) return -sign;
    // f2 has no extension
    else if (tempIndexf2 == -1) return sign;
    // Both have an extension
    else {
    String tempEndf1 = f1.getAbsolutePath().toUpperCase()
    .substring(tempIndexf1);
    String tempEndf2 = f2.getAbsolutePath().toUpperCase()
    .substring(tempIndexf2);
    return sign * tempEndf1.compareTo(tempEndf2);
    }
    }
    default:
    return 1;
    }
    }
    }
    }
    /**
    * Wrapperclass to wrap an OutputStream around a Writer
    */
    class Writer2Stream extends OutputStream {
    Writer out;
    Writer2Stream(Writer w) {
    super();
    out = w;
    }
    public void write(int i) throws IOException {
    out.write(i);
    }
    public void write(byte[] b) throws IOException {
    for (int i = 0; i < b.length; i++) {
    int n = b[i];
    //Convert byte to ubyte
    n = ((n >>> 4) & 0xF) * 16 + (n & 0xF);
    out.write(n);
    }
    }
    public void write(byte[] b, int off, int len) throws IOException {
    for (int i = off; i < off + len; i++) {
    int n = b[i];
    n = ((n >>> 4) & 0xF) * 16 + (n & 0xF);
    out.write(n);
    }
    }
    } //End of class Writer2Stream
    static Vector expandFileList(String[] files, boolean inclDirs) {
    Vector v = new Vector();
    if (files == null) return v;
    for (int i = 0; i < files.length; i++)
    v.add(new File(URLDecoder.decode(files[i])));
    for (int i = 0; i < v.size(); i++) {
    File f = (File) v.get(i);
    if (f.isDirectory()) {
    File[] fs = f.listFiles();
    for (int n = 0; n < fs.length; n++)
    v.add(fs[n]);
    if (!inclDirs) {
    v.remove(i);
    i--;
    }
    }
    }
    return v;
    }
    /**
    * Method to build an absolute path
    * @param dir the root dir
    * @param name the name of the new directory
    * @return if name is an absolute directory, returns name, else returns dir+name
    */
    static String getDir(String dir, String name) {
    if (!dir.endsWith(File.separator)) dir = dir + File.separator;
    File mv = new File(name);
    String new_dir = null;
    if (!mv.isAbsolute()) {
    new_dir = dir + name;
    }
    else new_dir = name;
    return new_dir;
    }
    /**
    * This Method converts a byte size in a kbytes or Mbytes size, depending on the size
    * @param size The size in bytes
    * @return String with size and unit
    */
    static String convertFileSize(long size) {
    int divisor = 1;
    String unit = "bytes";
    if (size >= 1024 * 1024) {
    divisor = 1024 * 1024;
    unit = "MB";
    }
    else if (size >= 1024) {
    divisor = 1024;
    unit = "KB";
    }
    if (divisor == 1) return size / divisor + " " + unit;
    String aftercomma = "" + 100 * (size % divisor) / divisor;
    if (aftercomma.length() == 1) aftercomma = "0" + aftercomma;
    return size / divisor + "." + aftercomma + " " + unit;
    }
    /**
    * Copies all data from in to out
    * @param in the input stream
    * @param out the output stream
    * @param buffer copy buffer
    */
    static void copyStreams(InputStream in, OutputStream out, byte[] buffer) throws IOException {
    copyStreamsWithoutClose(in, out, buffer);
    in.close();
    out.close();
    }
    /**
    * Copies all data from in to out
    * @param in the input stream
    * @param out the output stream
    * @param buffer copy buffer
    */
    static void copyStreamsWithoutClose(InputStream in, OutputStream out, byte[] buffer)
    throws IOException {
    int b;
    while ((b = in.read(buffer)) != -1)
    out.write(buffer, 0, b);
    }
    /**
    * Returns the Mime Type of the file, depending on the extension of the filename
    */
    static String getMimeType(String fName) {
    fName = fName.toLowerCase();
    if (fName.endsWith(".jpg") || fName.endsWith(".jpeg") || fName.endsWith(".jpe")) return "image/jpeg";
    else if (fName.endsWith(".gif")) return "image/gif";
    else if (fName.endsWith(".pdf")) return "application/pdf";
    else if (fName.endsWith(".htm") || fName.endsWith(".html") || fName.endsWith(".shtml")) return "text/html";
    else if (fName.endsWith(".avi")) return "video/x-msvideo";
    else if (fName.endsWith(".mov") || fName.endsWith(".qt")) return "video/quicktime";
    else if (fName.endsWith(".mpg") || fName.endsWith(".mpeg") || fName.endsWith(".mpe")) return "video/mpeg";
    else if (fName.endsWith(".zip")) return "application/zip";
    else if (fName.endsWith(".tiff") || fName.endsWith(".tif")) return "image/tiff";
    else if (fName.endsWith(".rtf")) return "application/rtf";
    else if (fName.endsWith(".mid") || fName.endsWith(".midi")) return "audio/x-midi";
    else if (fName.endsWith(".xl") || fName.endsWith(".xls") || fName.endsWith(".xlv")
    || fName.endsWith(".xla") || fName.endsWith(".xlb") || fName.endsWith(".xlt")
    || fName.endsWith(".xlm") || fName.endsWith(".xlk")) return "application/excel";
    else if (fName.endsWith(".doc") || fName.endsWith(".dot")) return "application/msword";
    else if (fName.endsWith(".png")) return "image/png";
    else if (fName.endsWith(".xml")) return "text/xml";
    else if (fName.endsWith(".svg")) return "image/svg+xml";
    else if (fName.endsWith(".mp3")) return "audio/mp3";
    else if (fName.endsWith(".ogg")) return "audio/ogg";
    else return "text/plain";
    }
    /**
    * Converts some important chars (int) to the corresponding html string
    */
    static String conv2Html(int i) {
    if (i == '&') return "&amp;";
    else if (i == '<') return "&lt;";
    else if (i == '>') return "&gt;";
    else if (i == '"') return "&quot;";
    else return "" + (char) i;
    }
    /**
    * Converts a normal string to a html conform string
    */
    static String conv2Html(String st) {
    StringBuffer buf = new StringBuffer();
    for (int i = 0; i < st.length(); i++) {
    buf.append(conv2Html(st.charAt(i)));
    }
    return buf.toString();
    }
    /**
    * Starts a native process on the server
    * @param command the command to start the process
    * @param dir the dir in which the process starts
    */
    static String startProcess(String command, String dir) throws IOException {
    StringBuffer ret = new StringBuffer();
    String[] comm = new String[3];
    if (System.getProperty("os.name").toLowerCase().indexOf("windows") != -1) {
    comm[0] = WINDOWS_COMMAND_INTERPRETER[0];
    comm[1] = WINDOWS_COMMAND_INTERPRETER[1];
    } else {
    comm[0] = LINUX_COMMAND_INTERPRETER[0];
    comm[1] = LINUX_COMMAND_INTERPRETER[1];
    }
    comm[2] = command;
    long start = System.currentTimeMillis();
    try {
    //Start process
    Process ls_proc = Runtime.getRuntime().exec(comm, null, new File(dir));
    //Get input and error streams
    BufferedInputStream ls_in = new BufferedInputStream(ls_proc.getInputStream());
    BufferedInputStream ls_err = new BufferedInputStream(ls_proc.getErrorStream());
    boolean end = false;
    while (!end) {
    int c = 0;
    while ((ls_err.available() > 0) && (++c <= 1000)) {
    ret.append(conv2Html(ls_err.read()));
    }
    c = 0;
    while ((ls_in.available() > 0) && (++c <= 1000)) {
    ret.append(conv2Html(ls_in.read()));
    }
    try {
    ls_proc.exitValue();
    //if the process has not finished, an exception is thrown
    //else
    while (ls_err.available() > 0)
    ret.append(conv2Html(ls_err.read()));
    while (ls_in.available() > 0)
    ret.append(conv2Html(ls_in.read()));
    end = true;
    }
    catch (IllegalThreadStateException ex) {
    //Process is running
    }
    //The process is not allowed to run longer than given time.
    if (System.currentTimeMillis() - start > MAX_PROCESS_RUNNING_TIME) {
    ls_proc.destroy();
    end = true;
    ret.append("!!!! Process has timed out, destroyed !!!!!");
    }
    try {
    Thread.sleep(50);
    }
    catch (InterruptedException ie) {}
    }
    }
    catch (IOException e) {
    ret.append("Error: " + e);
    }
    return ret.toString();
    }
    /**
    * Converts a dir string to a linked dir string
    * @param dir the directory string (e.g. /usr/local/httpd)
    * @param browserLink web-path to Browser.jsp
    */
    static String dir2linkdir(String dir, String browserLink, int sortMode) {
    File f = new File(dir);
    StringBuffer buf = new StringBuffer();
    while (f.getParentFile() != null) {
    if (f.canRead()) {
    String encPath = URLEncoder.encode(f.getAbsolutePath());
    buf.insert(0, "<a href=\"" + browserLink + "?sort=" + sortMode + "&amp;dir="
    + encPath + "\">" + conv2Html(f.getName()) + File.separator + "</a>");
    }
    else buf.insert(0, conv2Html(f.getName()) + File.separator);
    f = f.getParentFile();
    }
    if (f.canRead()) {
    String encPath = URLEncoder.encode(f.getAbsolutePath());
    buf.insert(0, "<a href=\"" + browserLink + "?sort=" + sortMode + "&amp;dir=" + encPath
    + "\">" + conv2Html(f.getAbsolutePath()) + "</a>");
    }
    else buf.insert(0, f.getAbsolutePath());
    return buf.toString();
    }
    /**
    * Returns true if the given filename tends towards a packed file
    */
    static boolean isPacked(String name, boolean gz) {
    return (name.toLowerCase().endsWith(".zip") || name.toLowerCase().endsWith(".jar")
    || (gz && name.toLowerCase().endsWith(".gz")) || name.toLowerCase()
    .endsWith(".war"));
    }
    /**
    * If RESTRICT_BROWSING = true this method checks, whether the path is allowed or not
    */
    static boolean isAllowed(File path, boolean write) throws IOException{
    if (READ_ONLY && write) return false;
    if (RESTRICT_BROWSING) {
    StringTokenizer stk = new StringTokenizer(RESTRICT_PATH, ";");
    while (stk.hasMoreTokens()){
    if (path!=null && path.getCanonicalPath().startsWith(stk.nextToken()))
    return RESTRICT_WHITELIST;
    }
    return !RESTRICT_WHITELIST;
    }
    else return true;
    }
    //---------------------------------------------------------------------------------------------------------------
    %>
    <%
    //Get the current browsing directory
    request.setAttribute("dir", request.getParameter("dir"));
    // The browser_name variable is used to keep track of the URI
    // of the jsp file itself. It is used in all link-backs.
    final String browser_name = request.getRequestURI();
    final String FOL_IMG = "";
    boolean nohtml = false;
    boolean dir_view = true;
    //Get Javascript
    if (request.getParameter("Javascript") != null) {
    dir_view = false;
    nohtml = true;
    //Tell the browser that it should cache the javascript
    response.setHeader("Cache-Control", "public");
    Date now = new Date();
    SimpleDateFormat sdf = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss z", Locale.US);
    response.setHeader("Expires", sdf.format(new Date(now.getTime() + 1000 * 60 * 60 * 24*2)));
    response.setHeader("Content-Type", "text/javascript");
    %>
    <%// This section contains the Javascript used for interface elements %>
    var check = false;
    <%// Disables the checkbox feature %>
    function dis(){check = true;}
    var DOM = 0, MS = 0, OP = 0, b = 0;
    <%// Determine the browser type %>
    function CheckBrowser(){
    if (b == 0){
    if (window.opera) OP = 1;
    // Moz or Netscape
    if(document.getElementById) DOM = 1;
    // Micro$oft
    if(document.all && !OP) MS = 1;
    b = 1;
    }
    }
    <%// Allows the whole row to be selected %>
    function selrow (element, i){
    var erst;
    CheckBrowser();
    if ((OP==1)||(MS==1)) erst = element.firstChild.firstChild;
    else if (DOM==1) erst = element.firstChild.nextSibling.firstChild;
    <%// MouseIn %>
    if (i==0){
    if (erst.checked == true) element.className='mousechecked';
    else element.className='mousein';
    }
    <%// MouseOut %>
    else if (i==1){
    if (erst.checked == true) element.className='checked';
    else element.className='mouseout';
    }
    <% // MouseClick %>
    else if ((i==2)&&(!check)){
    if (erst.checked==true) element.className='mousein';
    else element.className='mousechecked';
    erst.click();
    }
    else check=false;
    }
    <%// Filter files and dirs in FileList%>
    function filter (begriff){
    var suche = begriff.value.toLowerCase();
    var table = document.getElementById("filetable");
    var ele;
    for (var r = 1; r < table.rows.length; r++){
    ele = table.rows[r].cells[1].innerHTML.replace(/<[^>]+>/g,"");
    if (ele.toLowerCase().indexOf(suche)>=0 )
    table.rows[r].style.display = '';
    else table.rows[r].style.display = 'none';
    }
    }
    <%//(De)select all checkboxes%>
    function AllFiles(){
    for(var x=0;x < document.FileList.elements.length;x++){
    var y = document.FileList.elements[x];
    var ytr = y.parentNode.parentNode;
    var check = document.FileList.selall.checked;
    if(y.name == 'selfile' && ytr.style.display != 'none'){
    if (y.disabled != true){
    y.checked = check;
    if (y.checked == true) ytr.className = 'checked';
    else ytr.className = 'mouseout';
    }
    }
    }
    }
    function shortKeyHandler(_event){
    if (!_event) _event = window.event;
    if (_event.which) {
    keycode = _event.which;
    } else if (_event.keyCode) {
    keycode = _event.keyCode;
    }
    var t = document.getElementById("text_Dir");
    //z
    if (keycode == 122){
    document.getElementById("but_Zip").click();
    }
    //r, F2
    else if (keycode == 113 || keycode == 114){
    var path = prompt("Please enter new filename", "");
    if (path == null) return;
    t.value = path;
    document.getElementById("but_Ren").click();
    }
    //c
    else if (keycode == 99){
    var path = prompt("Please enter filename", "");
    if (path == null) return;
    t.value = path;
    document.getElementById("but_NFi").click();
    }
    //d
    else if (keycode == 100){
    var path = prompt("Please enter directory name", "");
    if (path == null) return;
    t.value = path;
    document.getElementById("but_NDi").click();
    }
    //m
    else if (keycode == 109){
    var path = prompt("Please enter move destination", "");
    if (path == null) return;
    t.value = path;
    document.getElementById("but_Mov").click();
    }
    //y
    else if (keycode == 121){
    var path = prompt("Please enter copy destination", "");
    if (path == null) return;
    t.value = path;
    document.getElementById("but_Cop").click();
    }
    //l
    else if (keycode == 108){
    document.getElementById("but_Lau").click();
    }
    //Del
    else if (keycode == 46){
    document.getElementById("but_Del").click();
    }
    }
    function popUp(URL){
    fname = document.getElementsByName("myFile")[0].value;
    if (fname != "")
    window.open(URL+"?first&uplMonitor="+encodeURIComponent(fname),"","width=400,height=150,resizable=yes,depend=yes")
    }
    document.onkeypress = shortKeyHandler;
    <% }
    // View file
    else if (request.getParameter("file") != null) {
    File f = new File(request.getParameter("file"));
    if (!isAllowed(f, false)) {
    request.setAttribute("dir", f.getParent());
    request.setAttribute("error", "You are not allowed to access "+f.getAbsolutePath());
    }
    else if (f.exists() && f.canRead()) {
    if (isPacked(f.getName(), false)) {
    //If zipFile, do nothing here
    }
    else{
    String mimeType = getMimeType(f.getName());
    response.setContentType(mimeType);
    if (mimeType.equals("text/plain")) response.setHeader(
    "Content-Disposition", "inline;filename=\"temp.txt\"");
    else response.setHeader("Content-Disposition", "inline;filename=\""
    + f.getName() + "\"");
    BufferedInputStream fileInput = new BufferedInputStream(new FileInputStream(f));
    byte buffer[] = new byte[8 * 1024];
    out.clearBuffer();
    OutputStream out_s = new Writer2Stream(out);
    copyStreamsWithoutClose(fileInput, out_s, buffer);
    fileInput.close();
    out_s.flush();
    nohtml = true;
    dir_view = false;
    }
    }
    else {
    request.setAttribute("dir", f.getParent());
    request.setAttribute("error", "File " + f.getAbsolutePath()
    + " does not exist or is not readable on the server");
    }
    }
    // Download selected files as zip file
    else if ((request.getParameter("Submit") != null)
    && (request.getParameter("Submit").equals(SAVE_AS_ZIP))) {
    Vector v = expandFileList(request.getParameterValues("selfile"), false);
    //Check if all files in vector are allowed
    String notAllowedFile = null;
    for (int i = 0;i < v.size(); i++){
    File f = (File) v.get(i);
    if (!isAllowed(f, false)){
    notAllowedFile = f.getAbsolutePath();
    break;
    }
    }
    if (notAllowedFile != null){
    request.setAttribute("error", "You are not allowed to access " + notAllowedFile);
    }
    else if (v.size() == 0) {
    request.setAttribute("error", "No files selected");
    }
    else {
    File dir_file = new File("" + request.getAttribute("dir"));
    int dir_l = dir_file.getAbsolutePath().length();
    response.setContentType("application/zip");
    response.setHeader("Content-Disposition", "attachment;filename=\"rename_me.zip\"");
    out.clearBuffer();
    ZipOutputStream zipout = new ZipOutputStream(new Writer2Stream(out));
    zipout.setComment("Created by jsp File Browser v. " + VERSION_NR);
    zipout.setLevel(COMPRESSION_LEVEL);
    for (int i = 0; i < v.size(); i++) {
    File f = (File) v.get(i);
    if (f.canRead()) {
    zipout.putNextEntry(new ZipEntry(f.getAbsolutePath().substring(dir_l + 1)));
    BufferedInputStream fr = new BufferedInputStream(new FileInputStream(f));
    byte buffer[] = new byte[0xffff];
    copyStreamsWithoutClose(fr, zipout, buffer);
    /* int b;
    while ((b=fr.read())!=-1) zipout.write(b);*/
    fr.close();
    zipout.closeEntry();
    }
    }
    zipout.finish();
    out.flush();
    nohtml = true;
    dir_view = false;
    }
    }
    // Download file
    else if (request.getParameter("downfile") != null) {
    String filePath = request.getParameter("downfile");
    File f = new File(filePath);
    if (!isAllowed(f, false)){
    request.setAttribute("dir", f.getParent());
    request.setAttribute("error", "You are not allowed to access " + f.getAbsoluteFile());
    }
    else if (f.exists() && f.canRead()) {
    response.setContentType("application/octet-stream");
    response.setHeader("Content-Disposition", "attachment;filename=\"" + f.getName()
    + "\"");
    response.setContentLength((int) f.length());
    BufferedInputStream fileInput = new BufferedInputStream(new FileInputStream(f));
    byte buffer[] = new byte[8 * 1024];
    out.clearBuffer();
    OutputStream out_s = new Writer2Stream(out);
    copyStreamsWithoutClose(fileInput, out_s, buffer);
    fileInput.close();
    out_s.flush();
    nohtml = true;
    dir_view = false;
    }
    else {
    request.setAttribute("dir", f.getParent());
    request.setAttribute("error", "File " + f.getAbsolutePath()
    + " does not exist or is not readable on the server");
    }
    }
    if (nohtml) return;
    //else
    // If no parameter is submitted, it will take the path from jsp file browser
    if (request.getAttribute("dir") == null) {
    String path = null;
    if (application.getRealPath(request.getRequestURI()) != null) {
    File f = new File(application.getRealPath(request.getRequestURI())).getParentFile();
    //This is a hack needed for tomcat
    while (f != null && !f.exists())
    f = f.getParentFile();
    if (f != null)
    path = f.getAbsolutePath();
    }
    if (path == null) { // handle the case where we are not in a directory (ex: war file)
    path = new File(".").getAbsolutePath();
    }
    //Check path
    if (!isAllowed(new File(path), false)){
    //TODO Blacklist
    if (RESTRICT_PATH.indexOf(";")<0) path = RESTRICT_PATH;
    else path = RESTRICT_PATH.substring(0, RESTRICT_PATH.indexOf(";"));
    }
    request.setAttribute("dir", path);
    }%>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
    "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
    <meta name="robots" content="noindex">
    <meta http-equiv="expires" content="0">
    <meta http-equiv="pragma" content="no-cache">
    <%
    //If a cssfile exists, it will take it
    String cssPath = null;
    if (application.getRealPath(request.getRequestURI()) != null) cssPath = new File(
    application.getRealPath(request.getRequestURI())).getParent()
    + File.separator + CSS_NAME;
    if (cssPath == null) cssPath = application.getResource(CSS_NAME).toString();
    if (new File(cssPath).exists()) {
    %>
    <link rel="stylesheet" type="text/css" href="<%=CSS_NAME%>">
    <%}
    else if (request.getParameter("uplMonitor") == null) {%>
    <style type="text/css">
    input.button {background-color: #c0c0c0; color: #666666;
    border: 1px solid #999999; margin: 5px 1px 5px 1px;}
    input.textfield {margin: 5px 1px 5px 1px;}
    input.button:Hover { color: #444444 }
    table.filelist {background-color:#666666; width:100%; border:0px none #ffffff}
    .formular {margin: 1px; background-color:#ffffff; padding: 1em; border:1px solid #000000;}
    .formular2 {margin: 1px;}
    th { background-color:#c0c0c0 }
    tr.mouseout { background-color:#ffffff; }
    tr.mousein { background-color:#eeeeee; }
    tr.checked { background-color:#cccccc }
    tr.mousechecked { background-color:#c0c0c0 }
    td { font-family:Verdana, Arial, Helvetica, sans-serif; font-size: 8pt; color: #666666;}
    td.message { background-color: #FFFF00; color: #000000; text-align:center; font-weight:bold}
    td.error { background-color: #FF0000; color: #000000; text-align:center; font-weight:bold}
    A { text-decoration: none; }
    A:Hover { color : Red; text-decoration : underline; }
    BODY { font-family:Verdana, Arial, Helvetica, sans-serif; font-size: 8pt; color: #666666;}
    </style>
    <%}
    //Check path
    if (!isAllowed(new File((String)request.getAttribute("dir")), false)){
    request.setAttribute("error", "You are not allowed to access " + request.getAttribute("dir"));
    }
    //Upload monitor
    else if (request.getParameter("uplMonitor") != null) {%>
    <style type="text/css">
    BODY { font-family:Verdana, Arial, Helvetica, sans-serif; font-size: 8pt; color: #666666;}
    </style><%
    String fname = request.getParameter("uplMonitor");
    //First opening
    boolean first = false;
    if (request.getParameter("first") != null) first = true;
    UplInfo info = new UplInfo();
    if (!first) {
    info = UploadMonitor.getInfo(fname);
    if (info == null) {
    //Windows
    int posi = fname.lastIndexOf("\\");
    if (posi != -1) info = UploadMonitor.getInfo(fname.substring(posi + 1));
    }
    if (info == null) {
    //Unix
    int posi = fname.lastIndexOf("/");
    if (posi != -1) info = UploadMonitor.getInfo(fname.substring(posi + 1));
    }
    }
    dir_view = false;
    request.setAttribute("dir", null);
    if (info.aborted) {
    UploadMonitor.remove(fname);
    %>
    </head>
    <body>
    <b>Upload of <%=fname%></b><br><br>
    Upload aborted.</body>
    </html><%
    }
    else if (info.totalSize != info.currSize || info.currSize == 0) {
    %>
    <META HTTP-EQUIV="Refresh" CONTENT="<%=UPLOAD_MONITOR_REFRESH%>;URL=<%=browser_name %>?uplMonitor=<%=URLEncoder.encode(fname)%>">
    </head>
    <body>
    <b>Upload of <%=fname%></b><br><br>
    <center>
    <table height="20px" width="90%" bgcolor="#eeeeee" style="border:1px solid #cccccc"><tr>
    <td bgcolor="blue" width="<%=info.getPercent()%>%"></td><td width="<%=100-info.getPercent()%>%"></td>
    </tr></table></center>
    <%=convertFileSize(info.currSize)%> from <%=convertFileSize(info.totalSize)%>
    (<%=info.getPercent()%> %) uploaded (Speed: <%=info.getUprate()%>).<br>
    Time: <%=info.getTimeElapsed()%> from <%=info.getTimeEstimated()%>
    </body>
    </html><%
    }
    else {
    UploadMonitor.remove(fname);
    %>
    </head>
    <body onload="javascript:window.close()">
    <b>Upload of <%=fname%></b><br><br>
    Upload finished.
    </body>
    </html><%
    }
    }
    //Comandwindow
    else if (request.getParameter("command") != null) {
    if (!NATIVE_COMMANDS){
    request.setAttribute("error", "Execution of native commands is not allowed!");
    }
    else if (!"Cancel".equalsIgnoreCase(request.getParameter("Submit"))) {
    %>
    <title>Launch commands in <%=request.getAttribute("dir")%></title>
    </head>
    <body><center>
    <h2><%=LAUNCH_COMMAND %></h2><br />
    <%
    out.println("<form action=\"" + browser_name + "\" method=\"Post\">\n"
    + "<textarea name=\"text\" wrap=\"off\" cols=\"" + EDITFIELD_COLS
    + "\" rows=\"" + EDITFIELD_ROWS + "\" readonly>");
    String ret = "";
    if (!request.getParameter("command").equalsIgnoreCase(""))
    ret = startProcess(
    request.getParameter("command"), (String) request.getAttribute("dir"));
    out.println(ret);
    %></textarea>
    <input type="hidden" name="dir" value="<%= request.getAttribute("dir")%>">
    <br /><br />
    <table class="formular">
    <tr><td title="Enter your command">
    Command: <input size="<%=EDITFIELD_COLS-5%>" type="text" name="command" value="">
    </td></tr>
    <tr><td><input class="button" type="Submit" name="Submit" value="Launch">
    <input type="hidden" name="sort" value="<%=request.getParameter("sort")%>">
    <input type="Submit" class="button" name="Submit" value="Cancel"></td></tr>
    </table>
    </form>
    <br />
    <hr>
    <center>
    <small>jsp File Browser version <%= VERSION_NR%> by <a href="http://www.vonloesch.de">www.vonloesch.de</a></small>
    </center>
    </center>
    </body>
    </html>
    <%
    dir_view = false;
    request.setAttribute("dir", null);
    }
    }
    //Click on a filename, special viewer (zip+jar file)
    else if (request.getParameter("file") != null) {
    File f = new File(request.getParameter("file"));
    if (!isAllowed(f, false)){
    request.setAttribute("error", "You are not allowed to access " + f.getAbsolutePath());
    }
    else if (isPacked(f.getName(), false)) {
    //ZipFile
    try {
    ZipFile zf = new ZipFile(f);
    Enumeration entries = zf.entries();
    %>
    <title><%= f.getAbsolutePath()%></title>
    </head>
    <body>
    <h2>Content of <%=conv2Html(f.getName())%></h2><br />
    <table class="filelist" cellspacing="1px" cellpadding="0px">
    <th>Name</th><th>Uncompressed size</th><th>Compressed size</th><th>Compr. ratio</th><th>Date</th>
    <%
    long size = 0;
    int fileCount = 0;
    while (entries.hasMoreElements()) {
    ZipEntry entry = (ZipEntry) entries.nextElement();
    if (!entry.isDirectory()) {
    fileCount++;
    size += entry.getSize();
    long ratio = 0;
    if (entry.getSize() != 0) ratio = (entry.getCompressedSize() * 100)
    / entry.getSize();
    out.println("<tr class=\"mouseout\"><td>" + conv2Html(entry.getName())
    + "</td><td>" + convertFileSize(entry.getSize()) + "</td><td>"
    + convertFileSize(entry.getCompressedSize()) + "</td><td>"
    + ratio + "%" + "</td><td>"
    + dateFormat.format(new Date(entry.getTime())) + "</td></tr>");
    }
    }
    zf.close();
    //No directory view
    dir_view = false;
    request.setAttribute("dir", null);
    %>
    </table>
    <p align=center>
    <b><%=convertFileSize(size)%> in <%=fileCount%> files in <%=f.getName()%>. Compression ratio: <%=(f.length() * 100) / size%>%
    </b></p>
    </body></html>
    <%
    }
    catch (ZipException ex) {
    request.setAttribute("error", "Cannot read " + f.getName()
    + ", no valid zip file");
    }
    catch (IOException ex) {
    request.setAttribute("error", "Reading of " + f.getName() + " aborted. Error: "
    + ex);
    }
    }
    }
    // Upload
    else if ((request.getContentType() != null)
    && (request.getContentType().toLowerCase().startsWith("multipart"))) {
    if (!ALLOW_UPLOAD){
    request.setAttribute("error", "Upload is forbidden!");
    }
    response.setContentType("text/html");
    HttpMultiPartParser parser = new HttpMultiPartParser();
    boolean error = false;
    try {
    int bstart = request.getContentType().lastIndexOf("oundary=");
    String bound = request.getContentType().substring(bstart + 8);
    int clength = request.getContentLength();
    Hashtable ht = parser
    .processData(request.getInputStream(), bound, tempdir, clength);
    if (!isAllowed(new File((String)ht.get("dir")), false)){
    //This is a hack, cos we are writing to this directory
    request.setAttribute("error", "You are not allowed to access " + ht.get("dir"));
    error = true;
    }
    else if (ht.get("myFile") != null) {
    FileInfo fi = (FileInfo) ht.get("myFile");
    File f = fi.file;
    UplInfo info = UploadMonitor.getInfo(fi.clientFileName);
    if (info != null && info.aborted) {
    f.delete();
    request.setAttribute("error", "Upload aborted");
    }
    else {
    // Move file from temp to the right dir
    String path = (String) ht.get("dir");
    if (!path.endsWith(File.separator)) path = path + File.separator;
    if (!f.renameTo(new File(path + f.getName()))) {
    request.setAttribute("error", "Cannot upload file.");
    error = true;
    f.delete();
    }
    }
    }
    else {
    request.setAttribute("error", "No file selected for upload");
    error = true;
    }
    request.setAttribute("dir", (String) ht.get("dir"));
    }
    catch (Exception e) {
    request.setAttribute("error", "Error " + e + ". Upload aborted");
    error = true;
    }
    if (!error) request.setAttribute("message", "File upload correctly finished.");
    }
    // The form to edit a text file
    else if (request.getParameter("editfile") != null) {
    File ef = new File(request.getParameter("editfile"));
    if (!isAllowed(ef, true)){
    request.setAttribute("error", "You are not allowed to access " + ef.getAbsolutePath());
    }
    else{
    %>
    <title>Edit <%=conv2Html(request.getParameter("editfile"))%></title>
    </head>
    <body>
    <center>
    <h2>Edit <%=conv2Html(request.getParameter("editfile"))%></h2><br />
    <%
    BufferedReader reader = new BufferedReader(new FileReader(ef));
    String disable = "";
    if (!ef.canWrite()) disable = " readonly";
    out.println("<form action=\"" + browser_name + "\" method=\"Post\">\n"
    + "<textarea name=\"text\" wrap=\"off\" cols=\"" + EDITFIELD_COLS
    + "\" rows=\"" + EDITFIELD_ROWS + "\"" + disable + ">");
    String c;
    // Write out the file and check if it is a win or unix file
    int i;
    boolean dos = false;
    boolean cr = false;
    while ((i = reader.read()) >= 0) {
    out.print(conv2Html(i));
    if (i == '\r') cr = true;
    else if (cr && (i == '\n')) dos = true;
    else cr = false;
    }
    reader.close();
    //No File directory is shown
    request.setAttribute("dir", null);
    dir_view = false;
    %></textarea><br /><br />
    <table class="formular">
    <input type="hidden" name="nfile" value="<%= request.getParameter("editfile")%>">
    <input type="hidden" name="sort" value="<%=request.getParameter("sort")%>">
    <tr><td colspan="2"><input type="radio" name="lineformat" value="dos" <%= dos?"checked":""%>>Ms-Dos/Windows
    <input type="radio" name="lineformat" value="unix" <%= dos?"":"checked"%>>Unix
    <input type="checkbox" name="Backup" checked>Write backup</td></tr>
    <tr><td title="Enter the new filename"><input type="text" name="new_name" value="<%=ef.getName()%>">
    <input type="Submit" name="Submit" value="Save"></td>
    </form>
    <form action="<%=browser_name%>" method="Post">
    <td align="left">
    <input type="Submit" name="Submit" value="Cancel">
    <input type="hidden" name="nfile" value="<%= request.getParameter("editfile")%>">
    <input type="hidden" name="sort" value="<%=request.getParameter("sort")%>">
    </td>
    </form>
    </tr>
    </table>
    </center>
    <br />
    <hr>
    <center>
    <small>jsp File Browser version <%= VERSION_NR%> by <a href="http://www.vonloesch.de">www.vonloesch.de</a></small>
    </center>
    </body>
    </html>
    <%
    }
    }
    // Save or cancel the edited file
    else if (request.getParameter("nfile") != null) {
    File f = new File(request.getParameter("nfile"));
    if (request.getParameter("Submit").equals("Save")) {
    File new_f = new File(getDir(f.getParent(), request.getParameter("new_name")));
    if (!isAllowed(new_f, true)){
    request.setAttribute("error", "You are not allowed to access " + new_f.getAbsolutePath());
    }
    if (new_f.exists() && new_f.canWrite() && request.getParameter("Backup") != null) {
    File bak = new File(new_f.getAbsolutePath() + ".bak");
    bak.delete();
    new_f.renameTo(bak);
    }
    if (new_f.exists() && !new_f.canWrite()) request.setAttribute("error",
    "Cannot write to " + new_f.getName() + ", file is write protected.");
    else {
    BufferedWriter outs = new BufferedWriter(new FileWriter(new_f));
    StringReader text = new StringReader(request.getParameter("text"));
    int i;
    boolean cr = false;
    String lineend = "\n";
    if (request.getParameter("lineformat").equals("dos")) lineend = "\r\n";
    while ((i = text.read()) >= 0) {
    if (i == '\r') cr = true;
    else if (i == '\n') {
    outs.write(lineend);
    cr = false;
    }
    else if (cr) {
    outs.write(lineend);
    cr = false;
    }
    else {
    outs.write(i);
    cr = false;
    }
    }
    outs.flush();
    outs.close();
    }
    }
    request.setAttribute("dir", f.getParent());
    }
    //Unpack file to the current directory without overwriting
    else if (request.getParameter("unpackfile") != null) {
    File f = new File(request.getParameter("unpackfile"));
    String root = f.getParent();
    request.setAttribute("dir", root);
    if (!isAllowed(new File(root), true)){
    request.setAttribute("error", "You are not allowed to access " + root);
    }
    //Check if file exists
    else if (!f.exists()) {
    request.setAttribute("error", "Cannot unpack " + f.getName()
    + ", file does not exist");
    }
    //Check if directory is readonly
    else if (!f.getParentFile().canWrite()) {
    request.setAttribute("error", "Cannot unpack " + f.getName()
    + ", directory is write protected.");
    }
    //GZip
    else if (f.getName().toLowerCase().endsWith(".gz")) {
    //New name is old Name without .gz
    String newName = f.getAbsolutePath().substring(0, f.getAbsolutePath().length() - 3);
    try {
    byte buffer[] = new byte[0xffff];
    copyStreams(new GZIPInputStream(new FileInputStream(f)), new FileOutputStream(
    newName), buffer);
    }
    catch (IOException ex) {
    request.setAttribute("error", "Unpacking of " + f.getName()
    + " aborted. Error: " + ex);
    }
    }
    //Else try Zip
    else {
    try {
    ZipFile zf = new ZipFile(f);
    Enumeration entries = zf.entries();
    //First check whether a file already exist
    boolean error = false;
    while (entries.hasMoreElements()) {
    ZipEntry entry = (ZipEntry) entries.nextElement();
    if (!entry.isDirectory()
    && new File(root + File.separator + entry.getName()).exists()) {
    request.setAttribute("error", "Cannot unpack " + f.getName()
    + ", File " + entry.getName() + " already exists.");
    error = true;
    break;
    }
    }
    if (!error) {
    //Unpack File
    entries = zf.entries();
    byte buffer[] = new byte[0xffff];
    while (entries.hasMoreElements()) {
    ZipEntry entry = (ZipEntry) entries.nextElement();
    File n = new File(root + File.separator + entry.getName());
    if (entry.isDirectory()) n.mkdirs();
    else {
    n.getParentFile().mkdirs();
    n.createNewFile();
    copyStreams(zf.getInputStream(entry), new FileOutputStream(n),
    buffer);
    }
    }
    zf.close();
    request.setAttribute("message", "Unpack of " + f.getName()
    + " was successful.");
    }
    }
    catch (ZipException ex) {
    request.setAttribute("error", "Cannot unpack " + f.getName()
    + ", no valid zip file");
    }
    catch (IOException ex) {
    request.setAttribute("error", "Unpacking of " + f.getName()
    + " aborted. Error: " + ex);
    }
    }
    }
    // Delete Files
    else if ((request.getParameter("Submit") != null)
    && (request.getParameter("Submit").equals(DELETE_FILES))) {
    Vector v = expandFileList(request.getParameterValues("selfile"), true);
    boolean error = false;
    //delete backwards
    for (int i = v.size() - 1; i >= 0; i--) {
    File f = (File) v.get(i);
    if (!isAllowed(f, true)){
    request.setAttribute("error", "You are not allowed to access " + f.getAbsolutePath());
    error = true;
    break;
    }
    if (!f.canWrite() || !f.delete()) {
    request.setAttribute("error", "Cannot delete " + f.getAbsolutePath()
    + ". Deletion aborted");
    error = true;
    break;
    }
    }
    if ((!error) && (v.size() > 1)) request.setAttribute("message", "All files deleted");
    else if ((!error) && (v.size() > 0)) request.setAttribute("message", "File deleted");
    else if (!error) request.setAttribute("error", "No files selected");
    }
    // Create Directory
    else if ((request.getParameter("Submit") != null)
    && (request.getParameter("Submit").equals(CREATE_DIR))) {
    String dir = "" + request.getAttribute("dir");
    String dir_name = request.getParameter("cr_dir");
    String new_dir = getDir(dir, dir_name);
    if (!isAllowed(new File(new_dir), true)){
    request.setAttribute("error", "You are not allowed to access " + new_dir);
    }
    else if (new File(new_dir).mkdirs()) {
    request.setAttribute("message", "Directory created");
    }
    else request.setAttribute("error", "Creation of directory " + new_dir + " failed");
    }
    // Create a new empty file
    else if ((request.getParameter("Submit") != null)
    && (request.getParameter("Submit").equals(CREATE_FILE))) {
    String dir = "" + request.getAttribute("dir");
    String file_name = request.getParameter("cr_dir");
    String new_file = getDir(dir, file_name);
    if (!isAllowed(new File(new_file), true)){
    request.setAttribute("error", "You are not allowed to access " + new_file);
    }
    // Test, if file_name is empty
    else if (!"".equals(file_name.trim()) && !file_name.endsWith(File.separator)) {
    if (new File(new_file).createNewFile()) request.setAttribute("message",
    "File created");
    else request.setAttribute("error", "Creation of file " + new_file + " failed");
    }
    else request.setAttribute("error", "Error: " + file_name + " is not a valid filename");
    }
    // Rename a file
    else if ((request.getParameter("Submit") != null)
    && (request.getParameter("Submit").equals(RENAME_FILE))) {
    Vector v = expandFileList(request.getParameterValues("selfile"), true);
    String dir = "" + request.getAttribute("dir");
    String new_file_name = request.getParameter("cr_dir");
    String new_file = getDir(dir, new_file_name);
    if (!isAllowed(new File(new_file), true)){
    request.setAttribute("error", "You are not allowed to access " + new_file);
    }
    // The error conditions:
    // 1) Zero Files selected
    else if (v.size() <= 0) request.setAttribute("error",
    "Select exactly one file or folder. Rename failed");
    // 2a) Multiple files selected and the first isn't a dir
    // Here we assume that expandFileList builds v from top-bottom, starting with the dirs
    else if ((v.size() > 1) && !(((File) v.get(0)).isDirectory())) request.setAttribute(
    "error", "Select exactly one file or folder. Rename failed");
    // 2b) If there are multiple files from the same directory, rename fails
    else if ((v.size() > 1) && ((File) v.get(0)).isDirectory()
    && !(((File) v.get(0)).getPath().equals(((File) v.get(1)).getParent()))) {
    request.setAttribute("error", "Select exactly one file or folder. Rename failed");
    }
    else {
    File f = (File) v.get(0);
    if (!isAllowed(f, true)){
    request.setAttribute("error", "You are not allowed to access " + f.getAbsolutePath());
    }
    // Test, if file_name is empty
    else if ((new_file.trim() != "") && !new_file.endsWith(File.separator)) {
    if (!f.canWrite() || !f.renameTo(new File(new_file.trim()))) {
    request.setAttribute("error", "Creation of file " + new_file + " failed");
    }
    else request.setAttribute("message", "Renamed file "
    + ((File) v.get(0)).getName() + " to " + new_file);
    }
    else request.setAttribute("error", "Error: \"" + new_file_name
    + "\" is not a valid filename");
    }
    }
    // Move selected file(s)
    else if ((request.getParameter("Submit") != null)
    && (request.getParameter("Submit").equals(MOVE_FILES))) {
    Vector v = expandFileList(request.getParameterValues("selfile"), true);
    String dir = "" + request.getAttribute("dir");
    String dir_name = request.getParameter("cr_dir");
    String new_dir = getDir(dir, dir_name);
    if (!isAllowed(new File(new_dir), false)){
    request.setAttribute("error", "You are not allowed to access " + new_dir);
    }
    else{
    boolean error = false;
    // This ensures that new_dir is a directory
    if (!new_dir.endsWith(File.separator)) new_dir += File.separator;
    for (int i = v.size() - 1; i >= 0; i--) {
    File f = (File) v.get(i);
    if (!isAllowed(f, true)){
    request.setAttribute("error", "You are not allowed to access " + f.getAbsolutePath());
    error = true;
    break;
    }
    else if (!f.canWrite() || !f.renameTo(new File(new_dir
    + f.getAbsolutePath().substring(dir.length())))) {
    request.setAttribute("error", "Cannot move " + f.getAbsolutePath()
    + ". Move aborted");
    error = true;
    break;
    }
    }
    if ((!error) && (v.size() > 1)) request.setAttribute("message", "All files moved");
    else if ((!error) && (v.size() > 0)) request.setAttribute("message", "File moved");
    else if (!error) request.setAttribute("error", "No files selected");
    }
    }
    // Copy Files
    else if ((request.getParameter("Submit") != null)
    && (request.getParameter("Submit").equals(COPY_FILES))) {
    Vector v = expandFileList(request.getParameterValues("selfile"), true);
    String dir = (String) request.getAttribute("dir");
    if (!dir.endsWith(File.separator)) dir += File.separator;
    String dir_name = request.getParameter("cr_dir");
    String new_dir = getDir(dir, dir_name);
    if (!isAllowed(new File(new_dir), true)){
    request.setAttribute("error", "You are not allowed to access " + new_dir);
    }
    else{
    boolean error = false;
    if (!new_dir.endsWith(File.separator)) new_dir += File.separator;
    try {
    byte buffer[] = new byte[0xffff];
    for (int i = 0; i < v.size(); i++) {
    File f_old = (File) v.get(i);
    File f_new = new File(new_dir + f_old.getAbsolutePath().substring(dir.length()));
    if (!isAllowed(f_old, false)|| !isAllowed(f_new, true)){
    request.setAttribute("error", "You are not allowed to access " + f_new.getAbsolutePath());
    error = true;
    }
    else if (f_old.isDirectory()) f_new.mkdirs();
    // Overwriting is forbidden
    else if (!f_new.exists()) {
    copyStreams(new FileInputStream(f_old), new FileOutputStream(f_new), buffer);
    }
    else {
    // File exists
    request.setAttribute("error", "Cannot copy " + f_old.getAbsolutePath()
    + ", file already exists. Copying aborted");
    error = true;
    break;
    }
    }
    }
    catch (IOException e) {
    request.setAttribute("error", "Error " + e + ". Copying aborted");
    error = true;
    }
    if ((!error) && (v.size() > 1)) request.setAttribute("message", "All files copied");
    else if ((!error) && (v.size() > 0)) request.setAttribute("message", "File copied");
    else if (!error) request.setAttribute("error", "No files selected");
    }
    }
    // Directory viewer
    if (dir_view && request.getAttribute("dir") != null) {
    File f = new File("" + request.getAttribute("dir"));
    //Check, whether the dir exists
    if (!f.exists() || !isAllowed(f, false)) {
    if (!f.exists()){
    request.setAttribute("error", "Directory " + f.getAbsolutePath() + " does not exist.");
    }
    else{
    request.setAttribute("error", "You are not allowed to access " + f.getAbsolutePath());
    }
    //if attribute olddir exists, it will change to olddir
    if (request.getAttribute("olddir") != null && isAllowed(new File((String) request.getAttribute("olddir")), false)) {
    f = new File("" + request.getAttribute("olddir"));
    }
    //try to go to the parent dir
    else {
    if (f.getParent() != null && isAllowed(f, false)) f = new File(f.getParent());
    }
    //If this dir also do also not exist, go back to browser.jsp root path
    if (!f.exists()) {
    String path = null;
    if (application.getRealPath(request.getRequestURI()) != null) path = new File(
    application.getRealPath(request.getRequestURI())).getParent();
    if (path == null) // handle the case were we are not in a directory (ex: war file)
    path = new File(".").getAbsolutePath();
    f = new File(path);
    }
    if (isAllowed(f, false)) request.setAttribute("dir", f.getAbsolutePath());
    else request.setAttribute("dir", null);
    }
    %>
    <script type="text/javascript" src="<%=browser_name %>?Javascript">
    </script>
    <title><%=request.getAttribute("dir")%></title>
    </head>
    <body>
    <%
    //Output message
    if (request.getAttribute("message") != null) {
    out.println("<table border=\"0\" width=\"100%\"><tr><td class=\"message\">");
    out.println(request.getAttribute("message"));
    out.println("</td></tr></table>");
    }
    //Output error
    if (request.getAttribute("error") != null) {
    out.println("<table border=\"0\" width=\"100%\"><tr><td class=\"error\">");
    out.println(request.getAttribute("error"));
    out.println("</td></tr></table>");
    }
    if (request.getAttribute("dir") != null){
    %>

    <form class="formular" action="<%= browser_name %>" method="Post" name="FileList">
    Filename filter: <input name="filt" onKeypress="event.cancelBubble=true;" onkeyup="filter(this)" type="text">
    <br /><br />
    <table id="filetable" class="filelist" cellspacing="1px" cellpadding="0px">
    <%
    // Output the table, starting with the headers.
    String dir = URLEncoder.encode("" + request.getAttribute("dir"));
    String cmd = browser_name + "?dir=" + dir;
    int sortMode = 1;
    if (request.getParameter("sort") != null) sortMode = Integer.parseInt(request
    .getParameter("sort"));
    int[] sort = new int[] {1, 2, 3, 4};
    for (int i = 0; i < sort.length; i++)
    if (sort[i] == sortMode) sort[i] = -sort[i];
    out.print("<tr><th>&nbsp;</th><th title=\"Sort files by name\" align=left><a href=\""
    + cmd + "&amp;sort=" + sort[0] + "\">Name</a></th>"
    + "<th title=\"Sort files by size\" align=\"right\"><a href=\"" + cmd
    + "&amp;sort=" + sort[1] + "\">Size</a></th>"
    + "<th title=\"Sort files by type\" align=\"center\"><a href=\"" + cmd
    + "&amp;sort=" + sort[3] + "\">Type</a></th>"
    + "<th title=\"Sort files by date\" align=\"left\"><a href=\"" + cmd
    + "&amp;sort=" + sort[2] + "\">Date</a></th>"
    + "<th>&nbsp;</th>");
    if (!READ_ONLY) out.print ("<th>&nbsp;</th>");
    out.println("</tr>");
    char trenner = File.separatorChar;
    // Output the Root-Dirs, without FORBIDDEN_DRIVES
    File[] entry = File.listRoots();
    for (int i = 0; i < entry.length; i++) {
    boolean forbidden = false;
    for (int i2 = 0; i2 < FORBIDDEN_DRIVES.length; i2++) {
    if (entry[i].getAbsolutePath().toLowerCase().equals(FORBIDDEN_DRIVES[i2])) forbidden = true;
    }
    if (!forbidden) {
    out.println("<tr class=\"mouseout\" onmouseover=\"this.className='mousein'\""
    + "onmouseout=\"this.className='mouseout'\">");
    out.println("<td>&nbsp;</td><td align=left >");
    String name = URLEncoder.encode(entry[i].getAbsolutePath());
    String buf = entry[i].getAbsolutePath();
    out.println(" &nbsp;<a href=\"" + browser_name + "?sort=" + sortMode
    + "&amp;dir=" + name + "\">[" + buf + "]</a>");
    out.print("</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td></td></tr>");
    }
    }
    // Output the parent directory link ".."
    if (f.getParent() != null) {
    out.println("<tr class=\"mouseout\" onmouseover=\"this.className='mousein'\""
    + "onmouseout=\"this.className='mouseout'\">");
    out.println("<td></td><td align=left>");
    out.println(" &nbsp;<a href=\"" + browser_name + "?sort=" + sortMode + "&amp;dir="
    + URLEncoder.encode(f.getParent()) + "\">" + FOL_IMG + "[..]</a>");
    out.print("</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td></td></tr>");
    }
    // Output all files and dirs and calculate the number of files and total size
    entry = f.listFiles();
    if (entry == null) entry = new File[] {};
    long totalSize = 0; // The total size of the files in the current directory
    long fileCount = 0; // The count of files in the current working directory
    if (entry != null && entry.length > 0) {
    Arrays.sort(entry, new FileComp(sortMode));
    for (int i = 0; i < entry.length; i++) {
    String name = URLEncoder.encode(entry[i].getAbsolutePath());
    String type = "File"; // This String will tell the extension of the file
    if (entry[i].isDirectory()) type = "DIR"; // It's a DIR
    else {
    String tempName = entry[i].getName().replace(' ', '_');
    if (tempName.lastIndexOf('.') != -1) type = tempName.substring(
    tempName.lastIndexOf('.')).toLowerCase();
    }
    String ahref = "<a onmousedown=\"dis()\" href=\"" + browser_name + "?sort="
    + sortMode + "&amp;";
    String dlink = "&nbsp;"; // The "Download" link
    String elink = "&nbsp;"; // The "Edit" link
    String buf = conv2Html(entry[i].getName());
    if (!entry[i].canWrite()) buf = "<i>" + buf + "</i>";
    String link = buf; // The standard view link, uses Mime-type
    if (entry[i].isDirectory()) {
    if (entry[i].canRead() && USE_DIR_PREVIEW) {
    //Show the first DIR_PREVIEW_NUMBER directory entries in a tooltip
    File[] fs = entry[i].listFiles();
    if (fs == null) fs = new File[] {};
    Arrays.sort(fs, new FileComp());
    StringBuffer filenames = new StringBuffer();
    for (int i2 = 0; (i2 < fs.length) && (i2 < 10); i2++) {
    String fname = conv2Html(fs[i2].getName());
    if (fs[i2].isDirectory()) filenames.append("[" + fname + "];");
    else filenames.append(fname + ";");
    }
    if (fs.length > DIR_PREVIEW_NUMBER) filenames.append("...");
    else if (filenames.length() > 0) filenames
    .setLength(filenames.length() - 1);
    link = ahref + "dir=" + name + "\" title=\"" + filenames + "\">"
    + FOL_IMG + "[" + buf + "]</a>";
    }
    else if (entry[i].canRead()) {
    link = ahref + "dir=" + name + "\">" + FOL_IMG + "[" + buf + "]</a>";
    }
    else link = FOL_IMG + "[" + buf + "]";
    }
    else if (entry[i].isFile()) { //Entry is file
    totalSize = totalSize + entry[i].length();
    fileCount = fileCount + 1;
    if (entry[i].canRead()) {
    dlink = ahref + "downfile=" + name + "\">Download</a>";
    //If you click at the filename
    if (USE_POPUP) link = ahref + "file=" + name + "\" target=\"_blank\">"
    + buf + "</a>";
    else link = ahref + "file=" + name + "\">" + buf + "</a>";
    if (entry[i].canWrite()) { // The file can be edited
    //If it is a zip or jar File you can unpack it
    if (isPacked(name, true)) elink = ahref + "unpackfile=" + name
    + "\">Unpack</a>";
    else elink = ahref + "editfile=" + name + "\">Edit</a>";
    }
    else { // If the file cannot be edited
    //If it is a zip or jar File you can unpack it
    if (isPacked(name, true)) elink = ahref + "unpackfile=" + name
    + "\">Unpack</a>";
    else elink = ahref + "editfile=" + name + "\">View</a>";
    }
    }
    else {
    link = buf;
    }
    }
    String date = dateFormat.format(new Date(entry[i].lastModified()));
    out.println("<tr class=\"mouseout\" onmouseup=\"selrow(this, 2)\" "
    + "onmouseover=\"selrow(this, 0);\" onmouseout=\"selrow(this, 1)\">");
    if (entry[i].canRead()) {
    out.println("<td align=center><input type=\"checkbox\" name=\"selfile\" value=\""
    + name + "\" onmousedown=\"dis()\"></td>");
    }
    else {
    out.println("<td align=center><input type=\"checkbox\" name=\"selfile\" disabled></td>");
    }
    out.print("<td align=left> &nbsp;" + link + "</td>");
    if (entry[i].isDirectory()) out.print("<td>&nbsp;</td>");
    else {
    out.print("<td align=right title=\"" + entry[i].length() + " bytes\">"
    + convertFileSize(entry[i].length()) + "</td>");
    }
    out.println("<td align=\"center\">" + type + "</td><td align=left> &nbsp;" + // The file type (extension)
    date + "</td><td>" + // The date the file was created
    dlink + "</td>"); // The download link
    if (!READ_ONLY)
    out.print ("<td>" + elink + "</td>"); // The edit link (or view, depending)
    out.println("</tr>");
    }
    }%>
    </table>
    <input type="checkbox" name="selall" onClick="AllFiles(this.form)">Select all
    <p align=center>
    <b title="<%=totalSize%> bytes">
    <%=convertFileSize(totalSize)%></b><b> in <%=fileCount%> files in <%= dir2linkdir((String) request.getAttribute("dir"), browser_name, sortMode)%>
    </b>
    </p>
    <input type="hidden" name="dir" value="<%=request.getAttribute("dir")%>">
    <input type="hidden" name="sort" value="<%=sortMode%>">
    <input title="Download selected files and directories as one zip file" class="button" id="but_Zip" type="Submit" name="Submit" value="<%=SAVE_AS_ZIP%>">
    <% if (!READ_ONLY) {%>
    <input title="Delete all selected files and directories incl. subdirs" class="button" id="but_Del" type="Submit" name="Submit" value="<%=DELETE_FILES%>"
    onclick="return confirm('Do you really want to delete the entries?')">
    <% } %>
    <% if (!READ_ONLY) {%>
    <br />
    <input title="Enter new dir or filename or the relative or absolute path" class="textfield" type="text" onKeypress="event.cancelBubble=true;" id="text_Dir" name="cr_dir">
    <input title="Create a new directory with the given name" class="button" id="but_NDi" type="Submit" name="Submit" value="<%=CREATE_DIR%>">
    <input title="Create a new empty file with the given name" class="button" id="but_NFi" type="Submit" name="Submit" value="<%=CREATE_FILE%>">
    <input title="Move selected files and directories to the entered path" id="but_Mov" class="button" type="Submit" name="Submit" value="<%=MOVE_FILES%>">
    <input title="Copy selected files and directories to the entered path" id="but_Cop" class="button" type="Submit" name="Submit" value="<%=COPY_FILES%>">
    <input title="Rename selected file or directory to the entered name" id="but_Ren" class="button" type="Submit" name="Submit" value="<%=RENAME_FILE%>">
    <% } %>
    </form>
    <br />
    <div class="formular">
    <% if (ALLOW_UPLOAD) { %>
    <form class="formular2" action="<%= browser_name%>" enctype="multipart/form-data" method="POST">
    <input type="hidden" name="dir" value="<%=request.getAttribute("dir")%>">
    <input type="hidden" name="sort" value="<%=sortMode%>">
    <input type="file" class="textfield" onKeypress="event.cancelBubble=true;" name="myFile">
    <input title="Upload selected file to the current working directory" type="Submit" class="button" name="Submit" value="<%=UPLOAD_FILES%>"
    onClick="javascript:popUp('<%= browser_name%>')">
    </form>
    <%} %>
    <% if (NATIVE_COMMANDS) {%>
    <form class="formular2" action="<%= browser_name%>" method="POST">
    <input type="hidden" name="dir" value="<%=request.getAttribute("dir")%>">
    <input type="hidden" name="sort" value="<%=sortMode%>">
    <input type="hidden" name="command" value="">
    <input title="Launch command in current directory" type="Submit" class="button" id="but_Lau" name="Submit" value="<%=LAUNCH_COMMAND%>">
    </form><%
    }%>
    </div>
    <%}%>
    <hr>
    <center>
    <small>jsp File Browser version <%= VERSION_NR%> by <a href="http://www.vonloesch.de">www.vonloesch.de</a></small>
    </center>
    </body>
    </html><%
    }
    %>