/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.servlets;
import com.caucho.i18n.CharacterEncoding;
import com.caucho.server.http.CauchoRequest;
import com.caucho.server.webapp.WebApp;
import com.caucho.server.util.CauchoSystem;
import com.caucho.util.CharBuffer;
import com.caucho.util.URLUtil;
import com.caucho.vfs.Path;
import com.caucho.vfs.Vfs;
import javax.servlet.RequestDispatcher;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Iterator;
public class DirectoryServlet extends HttpServlet {
WebApp _app;
Path _context;
private boolean _enable = true;
public DirectoryServlet(Path context)
{
_context = context;
}
public DirectoryServlet()
{
this(Vfs.lookup());
}
public void setEnable(boolean enable)
{
_enable = enable;
}
public void init()
{
_app = (WebApp) getServletContext();
_context = _app.getRootDirectory();
}
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws IOException
{
if (! _enable) {
res.sendError(404);
return;
}
CauchoRequest cauchoReq = null;
if (req instanceof CauchoRequest)
cauchoReq = (CauchoRequest) req;
String uri = req.getRequestURI();
boolean redirect = false;
String encoding = CharacterEncoding.getLocalEncoding();
if (encoding == null)
res.setContentType("text/html");
else
res.setContentType("text/html; charset=" + encoding);
boolean isInclude = false;
if (cauchoReq != null) {
uri = cauchoReq.getPageURI();
isInclude = ! uri.equals(cauchoReq.getRequestURI());
}
else {
uri = (String) req.getAttribute(RequestDispatcher.INCLUDE_REQUEST_URI);
if (uri != null)
isInclude = true;
else
uri = req.getRequestURI();
}
StringBuilder cb = new StringBuilder();
String servletPath;
if (cauchoReq != null)
servletPath = cauchoReq.getPageServletPath();
else if (isInclude)
servletPath = (String) req.getAttribute(RequestDispatcher.INCLUDE_SERVLET_PATH);
else
servletPath = req.getServletPath();
if (servletPath != null)
cb.append(servletPath);
String pathInfo;
if (cauchoReq != null)
pathInfo = cauchoReq.getPagePathInfo();
else if (isInclude)
pathInfo = (String) req.getAttribute(RequestDispatcher.INCLUDE_PATH_INFO);
else
pathInfo = req.getPathInfo();
if (pathInfo != null)
cb.append(pathInfo);
String relPath = cb.toString();
String filename = getServletContext().getRealPath(relPath);
Path path = _context.lookupNative(filename);
if (CauchoSystem.isWindows() && path.isWindowsInsecure()) {
res.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
if (uri.length() > 0 && uri.charAt(uri.length() - 1) != '/') {
res.sendRedirect(uri + "/");
return;
}
String rawpath = java.net.URLDecoder.decode(uri);
PrintWriter pw = res.getWriter();
if (rawpath.length() == 0 || rawpath.charAt(0) != '/')
rawpath = "/" + rawpath;
boolean endsSlash = rawpath.charAt(rawpath.length() - 1) == '/';
String tail = "";
if (! endsSlash) {
int p = rawpath.lastIndexOf('/');
tail = rawpath.substring(p + 1) + "/";
rawpath = rawpath + "/";
}
pw.println("<html>");
pw.println("<head>");
pw.println("<title>Directory of " + rawpath + "</title>");
pw.println("</head>");
pw.println("<body>");
pw.println("<h1>Directory of " + rawpath + "</h1>");
pw.println("<ul>");
Iterator i = path.iterator();
while (i.hasNext()) {
String name = (String) i.next();
if (name.equalsIgnoreCase("web-inf") ||
name.equalsIgnoreCase("meta-inf"))
continue;
String enc = URLUtil.encodeURL(tail + name);
pw.println("<li><a href='" + enc + "'>" + name + "</a>");
}
pw.println("</ul>");
pw.println("</body>");
pw.println("</html>");
pw.close();
}
}