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nl.info.webdav.methods.DoDelete Maven / Gradle / Ivy
/*
* Copyright 1999,2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package nl.info.webdav.methods;
import nl.info.webdav.ITransaction;
import nl.info.webdav.IWebdavStore;
import nl.info.webdav.StoredObject;
import nl.info.webdav.WebdavStatus;
import nl.info.webdav.exceptions.AccessDeniedException;
import nl.info.webdav.exceptions.LockFailedException;
import nl.info.webdav.exceptions.ObjectAlreadyExistsException;
import nl.info.webdav.exceptions.ObjectNotFoundException;
import nl.info.webdav.exceptions.WebdavException;
import nl.info.webdav.locking.ResourceLocks;
import java.io.IOException;
import java.util.Hashtable;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
public class DoDelete extends AbstractMethod {
private static org.slf4j.Logger LOG = org.slf4j.LoggerFactory.getLogger(DoDelete.class);
private final IWebdavStore _store;
private final ResourceLocks _resourceLocks;
private final boolean _readOnly;
public DoDelete(IWebdavStore store, ResourceLocks resourceLocks,
boolean readOnly) {
_store = store;
_resourceLocks = resourceLocks;
_readOnly = readOnly;
}
public void execute(
ITransaction transaction,
HttpServletRequest req,
HttpServletResponse resp
) throws IOException, LockFailedException {
LOG.trace("-- " + this.getClass().getName());
if (!_readOnly) {
String path = getRelativePath(req);
String parentPath = getParentPath(getCleanPath(path));
Hashtable errorList;
if (!checkLocks(transaction, req, _resourceLocks, parentPath)) {
resp.setStatus(WebdavStatus.SC_LOCKED);
return; // parent is locked
}
if (!checkLocks(transaction, req, _resourceLocks, path)) {
resp.setStatus(WebdavStatus.SC_LOCKED);
return; // resource is locked
}
String tempLockOwner = "doDelete" + System.currentTimeMillis() + req;
if (_resourceLocks.lock(transaction, path, tempLockOwner, false, 0,
TEMP_TIMEOUT, TEMPORARY)) {
try {
errorList = new Hashtable<>();
deleteResource(transaction, path, errorList, req, resp);
if (!errorList.isEmpty()) {
sendReport(req, resp, errorList);
}
} catch (AccessDeniedException e) {
resp.sendError(WebdavStatus.SC_FORBIDDEN);
} catch (ObjectAlreadyExistsException e) {
resp.sendError(WebdavStatus.SC_NOT_FOUND, req
.getRequestURI());
} catch (WebdavException e) {
resp.sendError(WebdavStatus.SC_INTERNAL_SERVER_ERROR);
} finally {
_resourceLocks.unlockTemporaryLockedObjects(transaction,
path, tempLockOwner);
}
} else {
resp.sendError(WebdavStatus.SC_INTERNAL_SERVER_ERROR);
}
} else {
resp.sendError(WebdavStatus.SC_FORBIDDEN);
}
}
/**
* deletes the recources at "path"
*
* @param transaction
* indicates that the method is within the scope of a WebDAV
* transaction
* @param path
* the folder to be deleted
* @param errorList
* all errors that ocurred
* @param req
* HttpServletRequest
* @param resp
* HttpServletResponse
* @throws WebdavException
* if an error in the underlying store occurs
* @throws IOException
* when an error occurs while sending the response
*/
public void deleteResource(ITransaction transaction, String path,
Hashtable errorList, HttpServletRequest req,
HttpServletResponse resp) throws IOException, WebdavException {
resp.setStatus(WebdavStatus.SC_NO_CONTENT);
if (!_readOnly) {
StoredObject so = _store.getStoredObject(transaction, path);
if (so != null) {
if (so.isResource()) {
_store.removeObject(transaction, path);
} else {
if (so.isFolder()) {
deleteFolder(transaction, path, errorList, req);
_store.removeObject(transaction, path);
} else {
resp.sendError(WebdavStatus.SC_NOT_FOUND);
}
}
} else {
resp.sendError(WebdavStatus.SC_NOT_FOUND);
}
} else {
resp.sendError(WebdavStatus.SC_FORBIDDEN);
}
}
/**
*
* helper method of deleteResource() deletes the folder and all of its
* contents
*
* @param transaction
* indicates that the method is within the scope of a WebDAV
* transaction
* @param path
* the folder to be deleted
* @param errorList
* all errors that ocurred
* @param req
* HttpServletRequest
* @throws WebdavException
* if an error in the underlying store occurs
*/
private void deleteFolder(
ITransaction transaction, String path,
Hashtable errorList,
HttpServletRequest req
) throws WebdavException {
String[] children = _store.getChildrenNames(transaction, path);
children = children == null ? new String[] {} : children;
for (int i = children.length - 1; i >= 0; i--) {
children[i] = "/" + children[i];
try {
StoredObject so = _store.getStoredObject(transaction, path + children[i]);
if (so.isResource()) {
_store.removeObject(transaction, path + children[i]);
} else {
deleteFolder(transaction, path + children[i], errorList,
req);
_store.removeObject(transaction, path + children[i]);
}
} catch (AccessDeniedException e) {
errorList.put(path + children[i], WebdavStatus.SC_FORBIDDEN);
} catch (ObjectNotFoundException e) {
errorList.put(path + children[i], WebdavStatus.SC_NOT_FOUND);
} catch (WebdavException e) {
errorList.put(path + children[i], WebdavStatus.SC_INTERNAL_SERVER_ERROR);
}
}
}
}
