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A generic CalDAV server - used by bedework
/* ********************************************************************
Licensed to Jasig under one or more contributor license
agreements. See the NOTICE file distributed with this work
for additional information regarding copyright ownership.
Jasig licenses this file to you 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 org.bedework.caldav.server;
import org.bedework.access.AccessPrincipal;
import org.bedework.access.CurrentAccess;
import org.bedework.access.PrivilegeDefs;
import org.bedework.caldav.server.sysinterface.SysIntf;
import org.bedework.caldav.util.notifications.BaseNotificationType.AttributeType;
import org.bedework.caldav.util.notifications.NotificationType.NotificationInfo;
import org.bedework.util.misc.Util;
import org.bedework.util.timezones.DateTimeUtil;
import org.bedework.util.xml.XmlEmit;
import org.bedework.util.xml.tagdefs.AppleServerTags;
import org.bedework.webdav.servlet.shared.WebdavException;
import org.bedework.webdav.servlet.shared.WebdavNsIntf;
import org.w3c.dom.Element;
import java.io.InputStream;
import java.io.Writer;
import java.util.HashMap;
import javax.xml.namespace.QName;
/** Class to represent a resource such as a file.
*
* @author Mike Douglass douglm rpi.edu
*/
public class CaldavResourceNode extends CaldavBwNode {
private CalDAVResource resource;
private AccessPrincipal owner;
private String entityName;
private CurrentAccess currentAccess;
private final static HashMap propertyNames =
new HashMap();
static {
addPropEntry(propertyNames, AppleServerTags.notificationtype);
}
/** Place holder for status
*
* @param sysi
* @param status
* @param uri
*/
public CaldavResourceNode(final SysIntf sysi,
final int status,
final String uri) {
super(true, sysi, uri);
setStatus(status);
}
/** Constructor
*
* @param cdURI
* @param sysi
* @throws WebdavException
*/
public CaldavResourceNode(final CaldavURI cdURI,
final SysIntf sysi) throws WebdavException {
super(cdURI, sysi);
resource = cdURI.getResource();
col = cdURI.getCol();
collection = false;
allowsGet = true;
entityName = cdURI.getEntityName();
exists = cdURI.getExists();
/*
if (resource != null) {
exists = !resource.isNew();
//resource.setPrevLastmod(resource.getLastmod());
//resource.setPrevSeq(resource.getPrevSeq());
} else {
exists = false;
}*/
}
/**
* @param resource
* @param sysi
* @throws WebdavException
*/
public CaldavResourceNode(final CalDAVResource resource,
final SysIntf sysi) throws WebdavException {
super(sysi, resource.getParentPath(), true, resource.getPath());
allowsGet = false;
this.resource = resource;
exists = true;
}
@Override
public void init(final boolean content) {
if (!content) {
return;
}
if ((resource == null) && exists) {
if (entityName == null) {
exists = false;
}
}
}
@Override
public AccessPrincipal getOwner() throws WebdavException {
if (owner == null) {
if (resource == null) {
return null;
}
owner = resource.getOwner();
}
return owner;
}
@Override
public boolean removeProperty(final Element val,
final SetPropertyResult spr) throws WebdavException {
warn("Unimplemented - removeProperty");
return false;
}
@Override
public boolean setProperty(final Element val,
final SetPropertyResult spr) throws WebdavException {
if (super.setProperty(val, spr)) {
return true;
}
return false;
}
@Override
public void update() throws WebdavException {
if (resource != null) {
getSysi().updateFile(resource, true);
}
}
/**
* @return String
*/
public String getEntityName() {
return entityName;
}
@Override
public boolean trailSlash() {
return false;
}
/* ====================================================================
* Property methods
* ==================================================================== */
@Override
public boolean knownProperty(final QName tag) {
if (propertyNames.get(tag) != null) {
return true;
}
// Not ours
return super.knownProperty(tag);
}
@Override
public boolean generatePropertyValue(final QName tag,
final WebdavNsIntf intf,
final boolean allProp) throws WebdavException {
XmlEmit xml = intf.getXmlEmit();
try {
if (tag.equals(AppleServerTags.notificationtype)) {
if (resource == null) {
return false;
}
NotificationInfo ni = resource.getNotificationType();
if (ni == null) {
return false;
}
xml.openTag(tag);
xml.startTag(ni.type);
if (!Util.isEmpty(ni.attrs)) {
for (AttributeType at: ni.attrs) {
xml.attribute(at.getName(), at.getValue());
}
}
xml.endEmptyTag();
// XXX attrs
xml.closeTag(tag);
return true;
}
// Not known - try higher
return super.generatePropertyValue(tag, intf, allProp);
} catch (WebdavException wde) {
throw wde;
} catch (Throwable t) {
throw new WebdavException(t);
}
}
/**
* @param val
*/
public void setResource(final CalDAVResource val) {
resource = val;
}
/** Returns the resource object
*
* @return CalDAVResource
* @throws WebdavException
*/
public CalDAVResource getResource() throws WebdavException {
init(true);
return resource;
}
/* ====================================================================
* Overridden property methods
* ==================================================================== */
@Override
public CurrentAccess getCurrentAccess() throws WebdavException {
if (currentAccess != null) {
return currentAccess;
}
if (resource == null) {
return null;
}
try {
currentAccess = getSysi().checkAccess(resource, PrivilegeDefs.privAny, true);
} catch (Throwable t) {
throw new WebdavException(t);
}
return currentAccess;
}
@Override
public String getEtagValue(final boolean strong) throws WebdavException {
init(true);
if (resource == null) {
return null;
}
String val = resource.getEtag();
if (strong) {
return val;
}
return "W/" + val;
}
/* (non-Javadoc)
* @see org.bedework.caldav.server.CaldavBwNode#getEtokenValue()
*/
@Override
public String getEtokenValue() throws WebdavException {
return concatEtoken(getEtagValue(true), "");
}
/* *
* @param strong
* @return etag before changes
* @throws WebdavException
* /
public String getPrevEtagValue(boolean strong) throws WebdavException {
init(true);
if (resource == null) {
return null;
}
return makeEtag(resource.getPrevLastmod(), resource.getPrevSeq(), strong);
}*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("CaldavResourceNode{");
sb.append("path=");
sb.append(getPath());
sb.append(", entityName=");
sb.append(String.valueOf(entityName));
sb.append("}");
return sb.toString();
}
/* ====================================================================
* Required webdav properties
* ==================================================================== */
@Override
public String writeContent(final XmlEmit xml,
final Writer wtr,
final String contentType) throws WebdavException {
return null;
}
@Override
public boolean getContentBinary() throws WebdavException {
return true;
}
@Override
public InputStream getContentStream() throws WebdavException {
return resource.getBinaryContent();
}
@Override
public String getContentString(String contentType) throws WebdavException {
init(true);
throw new WebdavException("binary content");
}
@Override
public String getContentLang() throws WebdavException {
return "en";
}
@Override
public long getContentLen() throws WebdavException {
init(true);
if (resource == null) {
return 0;
}
return resource.getContentLen();
}
@Override
public String getContentType() throws WebdavException {
if (resource == null) {
return null;
}
return resource.getContentType();
}
@Override
public String getCreDate() throws WebdavException {
init(false);
if (resource == null) {
return null;
}
return resource.getCreated();
}
@Override
public String getDisplayname() throws WebdavException {
return getEntityName();
}
@Override
public String getLastmodDate() throws WebdavException {
init(false);
if (resource == null) {
return null;
}
try {
return DateTimeUtil.fromISODateTimeUTCtoRfc822(
resource.getLastmod());
} catch (Throwable t) {
throw new WebdavException(t);
}
}
@Override
public boolean allowsSyncReport() throws WebdavException {
return false;
}
@Override
public boolean getDeleted() throws WebdavException {
if (resource == null) {
return false;
}
return resource.getDeleted();
}
}