org.bedework.carddav.server.CarddavResourceNode Maven / Gradle / Ivy
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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.carddav.server;
import org.bedework.access.AccessPrincipal;
import org.bedework.access.CurrentAccess;
import org.bedework.access.PrivilegeDefs;
import org.bedework.carddav.common.CarddavCollection;
import org.bedework.util.timezones.DateTimeUtil;
import org.bedework.util.xml.XmlEmit;
import org.bedework.webdav.servlet.shared.WebdavException;
import org.w3c.dom.Element;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.Writer;
import javax.xml.namespace.QName;
/** Class to represent a resource such as a file.
*
* @author Mike Douglass douglm rpi.edu
*/
public class CarddavResourceNode extends CarddavNode {
private CarddavResource resource;
private AccessPrincipal owner;
private String entityName;
private CarddavCollection col;
private CurrentAccess currentAccess;
/** Place holder for status
*
* @param sysi
* @param status
* @param uri
*/
public CarddavResourceNode(final SysIntf sysi,
final int status,
final String uri) {
super(true, sysi, uri);
setStatus(status);
this.uri = uri;
}
/** Constructor
*
* @param cdURI
* @param sysi
* @throws WebdavException
*/
public CarddavResourceNode(final CarddavURI cdURI,
final SysIntf sysi) throws WebdavException {
super(cdURI, sysi);
resource = cdURI.getResource();
col = cdURI.getCol();
collection = false;
allowsGet = true;
entityName = cdURI.getEntityName();
exists = cdURI.exists;
if (resource != null) {
resource.setPrevLastmod(resource.getLastmod());
resource.setPrevSeq(resource.getPrevSeq());
}
}
@Override
public void init(final boolean content) throws WebdavException {
if (!content) {
return;
}
try {
if ((resource == null) && exists) {
if (entityName == null) {
exists = false;
return;
}
}
} catch (Throwable t) {
throw new WebdavException(t);
}
}
/* (non-Javadoc)
* @see org.bedework.carddav.server.CarddavNode#getWdCollection()
*/
@Override
public CarddavCollection getWdCollection() throws WebdavException {
return col;
}
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#getOwner()
*/
@Override
public AccessPrincipal getOwner() throws WebdavException {
if (owner == null) {
if (resource == null) {
return null;
}
owner = resource.getOwner();
}
return owner;
}
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#removeProperty(org.w3c.dom.Element)
*/
@Override
public boolean removeProperty(final Element val,
final SetPropertyResult spr) throws WebdavException {
warn("Unimplemented - removeProperty");
return false;
}
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#setProperty(org.w3c.dom.Element)
*/
@Override
public boolean setProperty(final Element val,
final SetPropertyResult spr) throws WebdavException {
if (super.setProperty(val, spr)) {
return true;
}
return false;
}
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#update()
*/
@Override
public void update() throws WebdavException {
if (resource != null) {
getSysi().updateFile(resource, true);
}
}
/**
* @return String
*/
public String getEntityName() {
return entityName;
}
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#trailSlash()
*/
@Override
public boolean trailSlash() {
return false;
}
/* ====================================================================
* Property methods
* ==================================================================== */
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#knownProperty(edu.rpi.sss.util.xml.QName)
*/
@Override
public boolean knownProperty(final QName tag) {
// Not ours
return super.knownProperty(tag);
}
/**
* @param val
*/
public void setResource(final CarddavResource val) {
resource = val;
}
/** Returns the resource object
*
* @return BwResource
* @throws WebdavException
*/
public CarddavResource getResource() throws WebdavException {
init(true);
return resource;
}
/* ====================================================================
* Overridden property methods
* ==================================================================== */
@Override
public CurrentAccess getCurrentAccess() throws WebdavException {
if (currentAccess != null) {
return currentAccess;
}
try {
currentAccess = getSysi().checkAccess(col, 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;
}
return makeEtag(resource.getLastmod(), 0, strong);
}
/**
* @param strong
* @return etag before changes
* @throws WebdavException
*/
public String getPrevEtagValue(final boolean strong) throws WebdavException {
init(true);
if (resource == null) {
return null;
}
return makeEtag(resource.getPrevLastmod(), resource.getPrevSeq(), strong);
}
private String makeEtag(final String lastmod, final int seq, final boolean strong) {
StringBuilder val = new StringBuilder();
if (!strong) {
val.append("W");
}
val.append("\"");
val.append(lastmod);
val.append("-");
val.append(seq);
val.append("\"");
return val.toString();
}
@Override
public String toString() {
StringBuffer sb = new StringBuffer();
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;
}
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#getContentBinary()
*/
@Override
public boolean getContentBinary() throws WebdavException {
return true;
}
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#getContentString()
*/
@Override
public String getContentString(String contentType) throws WebdavException {
init(true);
throw new WebdavException("binary content");
}
/** Return binary content
*
* @return InputStream content.
* @throws WebdavException
*/
public InputStream getBinaryContent() throws WebdavException {
init(true);
if ((resource == null) || (resource.getContent() == null)) {
return null;
}
return new ByteArrayInputStream(resource.getContent().getValue());
}
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#getContentLang()
*/
@Override
public String getContentLang() throws WebdavException {
return "en";
}
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#getContentLen()
*/
@Override
public long getContentLen() throws WebdavException {
init(true);
if (resource == null) {
return 0;
}
return resource.getContentLength();
}
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#getContentType()
*/
@Override
public String getContentType() throws WebdavException {
if (resource == null) {
return null;
}
return resource.getContentType();
}
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#getCreDate()
*/
@Override
public String getCreDate() throws WebdavException {
init(false);
if (resource == null) {
return null;
}
return resource.getCreated();
}
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#getDisplayname()
*/
@Override
public String getDisplayname() throws WebdavException {
return getEntityName();
}
/* (non-Javadoc)
* @see edu.rpi.cct.webdav.servlet.shared.WebdavNsNode#getLastmodDate()
*/
@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);
}
}
}
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