com.liferay.portal.webdav.WebDAVServlet Maven / Gradle / Ivy
/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library 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 Lesser General Public License for more
* details.
*/
package com.liferay.portal.webdav;
import com.liferay.petra.string.StringPool;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.model.User;
import com.liferay.portal.kernel.security.auth.PrincipalException;
import com.liferay.portal.kernel.security.auth.PrincipalThreadLocal;
import com.liferay.portal.kernel.security.permission.PermissionChecker;
import com.liferay.portal.kernel.security.permission.PermissionCheckerFactoryUtil;
import com.liferay.portal.kernel.security.permission.PermissionThreadLocal;
import com.liferay.portal.kernel.service.UserLocalServiceUtil;
import com.liferay.portal.kernel.servlet.HttpHeaders;
import com.liferay.portal.kernel.util.ArrayUtil;
import com.liferay.portal.kernel.util.GetterUtil;
import com.liferay.portal.kernel.util.HttpUtil;
import com.liferay.portal.kernel.util.InstancePool;
import com.liferay.portal.kernel.util.PortalUtil;
import com.liferay.portal.kernel.util.StringBundler;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.kernel.webdav.WebDAVException;
import com.liferay.portal.kernel.webdav.WebDAVRequest;
import com.liferay.portal.kernel.webdav.WebDAVStorage;
import com.liferay.portal.kernel.webdav.WebDAVUtil;
import com.liferay.portal.kernel.webdav.methods.Method;
import com.liferay.portal.kernel.webdav.methods.MethodFactory;
import com.liferay.portal.util.PropsValues;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* @author Brian Wing Shun Chan
* @author Alexander Chow
* @author Fabio Pezzutto
*/
public class WebDAVServlet extends HttpServlet {
@Override
public void service(
HttpServletRequest request, HttpServletResponse response) {
int status = HttpServletResponse.SC_PRECONDITION_FAILED;
String userAgent = request.getHeader(HttpHeaders.USER_AGENT);
if (_log.isDebugEnabled()) {
_log.debug("User agent " + userAgent);
}
try {
if (isIgnoredResource(request)) {
status = HttpServletResponse.SC_NOT_FOUND;
return;
}
WebDAVStorage storage = getStorage(request);
if (storage == null) {
if (_log.isDebugEnabled()) {
_log.debug("Invalid WebDAV path " + request.getPathInfo());
}
return;
}
// Set the path only if it has not already been set. This works if
// and only if the servlet is not mapped to more than one URL.
if (storage.getRootPath() == null) {
storage.setRootPath(getRootPath(request));
}
PermissionChecker permissionChecker = null;
String remoteUser = request.getRemoteUser();
if (remoteUser != null) {
PrincipalThreadLocal.setName(remoteUser);
long userId = GetterUtil.getLong(remoteUser);
User user = UserLocalServiceUtil.getUserById(userId);
permissionChecker = PermissionCheckerFactoryUtil.create(user);
PermissionThreadLocal.setPermissionChecker(permissionChecker);
}
// Get the method instance
MethodFactory methodFactory = storage.getMethodFactory();
Method method = methodFactory.create(request);
// Process the method
try {
WebDAVRequest webDAVRequest = new WebDAVRequestImpl(
storage, request, response, userAgent, permissionChecker);
status = method.process(webDAVRequest);
}
catch (WebDAVException wdave) {
boolean logError = false;
Throwable cause = wdave;
while (cause != null) {
if (cause instanceof PrincipalException) {
logError = true;
}
cause = cause.getCause();
}
if (logError) {
_log.error(wdave, wdave);
}
else if (_log.isWarnEnabled()) {
_log.warn(wdave, wdave);
}
status = HttpServletResponse.SC_PRECONDITION_FAILED;
}
}
catch (Exception e) {
_log.error(e, e);
}
finally {
response.setStatus(status);
if (_log.isInfoEnabled()) {
String xLitmus = GetterUtil.getString(
request.getHeader("X-Litmus"));
if (Validator.isNotNull(xLitmus)) {
xLitmus += " ";
}
_log.info(
StringBundler.concat(
xLitmus, request.getMethod(), " ",
request.getRequestURI(), " ", String.valueOf(status)));
}
}
}
protected String getRootPath(HttpServletRequest request) {
String contextPath = HttpUtil.fixPath(
PortalUtil.getPathContext(request), false, true);
String servletPath = HttpUtil.fixPath(
request.getServletPath(), false, true);
return contextPath.concat(servletPath);
}
protected WebDAVStorage getStorage(HttpServletRequest request) {
String pathInfo = WebDAVUtil.stripManualCheckInRequiredPath(
request.getPathInfo());
pathInfo = WebDAVUtil.stripOfficeExtension(pathInfo);
String[] pathArray = WebDAVUtil.getPathArray(pathInfo, true);
WebDAVStorage storage = null;
if (pathArray.length == 0) {
storage = (WebDAVStorage)InstancePool.get(
CompanyWebDAVStorageImpl.class.getName());
}
else if (pathArray.length == 1) {
storage = (WebDAVStorage)InstancePool.get(
GroupWebDAVStorageImpl.class.getName());
}
else if (pathArray.length >= 2) {
storage = WebDAVUtil.getStorage(pathArray[1]);
}
return storage;
}
protected boolean isIgnoredResource(HttpServletRequest request) {
String[] pathArray = WebDAVUtil.getPathArray(
request.getPathInfo(), true);
if (ArrayUtil.isEmpty(pathArray)) {
return false;
}
for (String ignore : PropsValues.WEBDAV_IGNORE) {
String[] ignoreArray = ignore.split(StringPool.SLASH);
if (ignoreArray.length > pathArray.length) {
continue;
}
boolean match = true;
for (int i = 1; i <= ignoreArray.length; i++) {
if (!pathArray[pathArray.length - i].equals(
ignoreArray[ignoreArray.length - i])) {
match = false;
break;
}
}
if (match) {
if (_log.isDebugEnabled()) {
_log.debug(
StringBundler.concat(
"Skipping over ", request.getMethod(), " ",
request.getPathInfo()));
}
return true;
}
}
return false;
}
private static final Log _log = LogFactoryUtil.getLog(WebDAVServlet.class);
}