/*
* $Header: /home/cvspublic/jakarta-slide/src/webdav/server/org/apache/slide/webdav/WebdavServlet.java,v 1.13 2001/05/08 22:23:25 remm Exp $
* $Revision: 1.13 $
* $Date: 2001/05/08 22:23:25 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
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*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* [Additional notices, if required by prior licensing conditions]
*
*/
package org.apache.slide.webdav;
import java.io.*;
import java.util.*;
import java.security.Principal;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.*;
import org.xml.sax.helpers.*;
import org.apache.util.WebdavStatus;
import org.apache.slide.webdav.method.*;
import org.apache.slide.common.NamespaceAccessToken;
import org.apache.slide.common.Domain;
import org.apache.slide.structure.*;
import org.apache.slide.util.conf.*;
import org.apache.slide.authenticate.SecurityToken;
import org.apache.slide.webdav.logger.XHttpServletRequestFacade;
import org.apache.slide.webdav.logger.XHttpServletResponseFacade;
import org.apache.slide.webdav.logger.XMLTestCaseGenerator;
import org.apache.slide.util.logger.Logger;
/**
* WebDAV Servlet.
*
* @author <a href="mailto:remm@apache.org">Remy Maucherat</a>
*/
public class WebdavServlet extends HttpServlet {
// -------------------------------------------------------------- Constants
/**
* HTTP Date format pattern (RFC 2068, 822, 1123).
*/
public static final String DATE_FORMAT = "EEE, d MMM yyyy kk:mm:ss z";
/**
* Date formatter.
*/
private static final DateFormat formatter =
new SimpleDateFormat(DATE_FORMAT);
// ----------------------------------------------------- Instance Variables
/**
* Access token to the namespace.
*/
NamespaceAccessToken token;
// -------------------------------------------------------- Private Methods
/**
* Create Slide Method form the HTTP Method.
*
* @return WebdavMethod
* @exception WebdavException
*/
private WebdavMethod createWebdavMethod
(HttpServletRequest req, HttpServletResponse resp)
throws WebdavException {
String methodName = req.getMethod();
WebdavMethod resultMethod = null;
if (methodName.equalsIgnoreCase("GET")) {
resultMethod = new GetMethod(this, token, req, resp);
} else if (methodName.equalsIgnoreCase("PROPFIND")) {
resultMethod = new PropFindMethod(this, token, req, resp);
} else if (methodName.equalsIgnoreCase("HEAD")) {
resultMethod = new HeadMethod(this, token, req, resp);
} else if (methodName.equalsIgnoreCase("LOCK")) {
resultMethod = new LockMethod(this, token, req, resp);
} else if (methodName.equalsIgnoreCase("UNLOCK")) {
resultMethod = new UnlockMethod(this, token, req, resp);
} else if (methodName.equalsIgnoreCase("OPTIONS")) {
resultMethod = new OptionsMethod(this, token, req, resp);
} else if (methodName.equalsIgnoreCase("PUT")) {
resultMethod = new PutMethod(this, token, req, resp);
} else if (methodName.equalsIgnoreCase("MKCOL")) {
resultMethod = new MkcolMethod(this, token, req, resp);
} else if (methodName.equalsIgnoreCase("POST")) {
resultMethod = new PostMethod(this, token, req, resp);
} else if (methodName.equalsIgnoreCase("COPY")) {
resultMethod = new CopyMethod(this, token, req, resp);
} else if (methodName.equalsIgnoreCase("MOVE")) {
resultMethod = new MoveMethod(this, token, req, resp);
} else if (methodName.equalsIgnoreCase("DELETE")) {
resultMethod = new DeleteMethod(this, token, req, resp);
} else if (methodName.equalsIgnoreCase("PROPPATCH")) {
resultMethod = new PropPatchMethod(this, token, req, resp);
} else if (methodName.equalsIgnoreCase("ACL")) {
resultMethod = new AclMethod(this, token, req, resp);
}
if (resultMethod == null) {
throw new WebdavException(WebdavStatus.SC_BAD_REQUEST);
}
return resultMethod;
}
// -------------------------------------------------------- Servlet Methods
protected void service (HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
long startTime = System.currentTimeMillis();
// if logging for the request/response is required initialise the facades
if (Domain.isEnabled("org.apache.slide.webdav.WebdavServlet.requestResponseLogger", Logger.DEBUG)) {
if ( req != null ) req = new XHttpServletRequestFacade(req);
if ( resp != null ) resp = new XHttpServletResponseFacade(resp);
}
resp.setStatus(WebdavStatus.SC_OK);
WebdavMethod method = null;
try {
//System.out.println(System.currentTimeMillis"Parsing request");
method = createWebdavMethod(req, resp);
method.run();
} catch (WebdavException e) {
// There has been an error somewhere ...
// TODO : Show error page.
System.out.println(e.getMessage());
e.printStackTrace();
} catch (Throwable e) {
// If something goes really wrong ...
e.printStackTrace();
}
// if logging for the request/response is required perform the logging
if (Domain.isEnabled
("org.apache.slide.webdav.WebdavServlet.requestResponseLogger",
Logger.DEBUG)) {
XMLTestCaseGenerator xmlGen = new XMLTestCaseGenerator
((XHttpServletRequestFacade)req,
(XHttpServletResponseFacade)resp);
xmlGen.setThreadName(Thread.currentThread().getName());
Domain.log
(xmlGen.toString(),
"org.apache.slide.webdav.WebdavServlet.requestResponseLogger",
Logger.DEBUG);
}
Domain.info
(req.getMethod()
+ ( (resp instanceof XHttpServletResponseFacade)
? (" = " + ((XHttpServletResponseFacade)resp).getStatus()
+ " " + (WebdavStatus.getStatusText
(((XHttpServletResponseFacade)resp).getStatus())))
: ("") )
+ " (time: " + (System.currentTimeMillis() - startTime) + " ms)"
+ " URI = " + WebdavMethod.getRelativePath(req));
}
/**
* Manages some initialization stuff on the server.
*/
public void init()
throws ServletException {
String namespaceName = "webdav";
String domainConfigFile = "/Domain.xml";
String managerServletPath = "/manager/";
int depthLimit = 3;
String value = null;
try {
value = getServletConfig().getInitParameter("namespace");
if (value != null)
namespaceName = value;
} catch (Throwable t) {
;
}
try {
value = getServletConfig().getInitParameter("domain");
if (value != null)
domainConfigFile = value;
} catch (Throwable t) {
;
}
try {
value = getServletConfig().getInitParameter("manager");
if (value != null)
managerServletPath = value;
} catch (Throwable t) {
;
}
try {
value = getServletConfig().getInitParameter("depth-limit");
if (value != null) {
depthLimit = Integer.parseInt(value);
}
} catch (Throwable t) {
;
}
WebdavMethod.init(managerServletPath, depthLimit);
try {
Domain.init(getServletContext().getResource(domainConfigFile));
} catch (Throwable t) {
t.printStackTrace();
throw new ServletException(t.getMessage());
}
token = Domain.accessNamespace(new SecurityToken(this), namespaceName);
}
/**
* Destroy servlet.
*/
public void destroy() {
Domain.closeNamespace(token);
}
}