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Main calendar engine code for 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.bwserver;
import org.bedework.access.AccessPrincipal;
import org.bedework.caldav.server.CalDAVResource;
import org.bedework.caldav.util.notifications.NotificationType;
import org.bedework.caldav.util.notifications.NotificationType.NotificationInfo;
import org.bedework.caldav.util.notifications.parse.Parser;
import org.bedework.calfacade.BwResource;
import org.bedework.calfacade.BwResourceContent;
import org.bedework.util.misc.Util;
import org.bedework.util.xml.tagdefs.CaldavTags;
import org.bedework.util.xml.tagdefs.WebdavTags;
import org.bedework.webdav.servlet.shared.WebdavException;
import org.bedework.webdav.servlet.shared.WebdavForbidden;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import javax.xml.namespace.QName;
/**
*
* @author douglm
*
*/
public class BwCalDAVResource extends CalDAVResource {
private final BwSysIntfImpl intf;
private BwResource rsrc;
private NotificationType note;
private String xmlNote;
/**
* @param intf
* @param rsrc
*/
BwCalDAVResource(final BwSysIntfImpl intf,
final BwResource rsrc) {
this.intf = intf;
this.rsrc = rsrc;
if (rsrc != null) {
rsrc.setPrevLastmod(rsrc.getPrevLastmod());
rsrc.setPrevSeq(rsrc.getPrevSeq());
}
}
/* ====================================================================
* Abstract method implementations
* ==================================================================== */
@Override
public boolean getCanShare() {
return false;
}
@Override
public boolean getCanPublish() {
return false;
}
@Override
public boolean isAlias() {
return false;
}
@Override
public String getAliasUri() {
return null;
}
@Override
public BwCalDAVResource resolveAlias(final boolean resolveSubAlias) {
return this;
}
@Override
public void setProperty(final QName name,
final String val) {
}
@Override
public String getProperty(final QName name) {
return null;
}
/* (non-Javadoc)
* @see org.bedework.caldav.server.CalDAVEvent#getNewEvent()
*/
@Override
public boolean isNew() {
return getRsrc().unsaved();
}
@Override
public boolean getDeleted() {
return getRsrc().getTombstoned();
}
@Override
public void setBinaryContent(final InputStream val) {
BwResource r = getRsrc();
BwResourceContent rc = r.getContent();
if (rc == null) {
if (!isNew()) {
intf.getFileContent(this);
rc = r.getContent();
}
if (rc == null) {
rc = new BwResourceContent();
r.setContent(rc);
}
}
try {
/* If this is a notification we need to unprefix the data */
final InputStream str;
if (!isNotification()) {
str = val;
} else {
final NotificationType note = Parser.fromXml(val);
note.getNotification().unprefixHrefs(intf.getUrlHandler());
str = new ByteArrayInputStream(note.toXml(true).getBytes());
}
final ByteArrayOutputStream outBuff = new ByteArrayOutputStream();
final byte[] inBuffer = new byte[1000];
long clen = 0;
int chunkSize;
final int maxSize = intf.getAuthProperties().getMaxUserEntitySize();
final long oldSize = r.getContentLength();
while (clen <= maxSize) {
chunkSize = str.read(inBuffer);
if (chunkSize < 0) {
break;
}
outBuff.write(inBuffer, 0, chunkSize);
clen += chunkSize;
}
if (clen > maxSize) {
throw new WebdavForbidden(CaldavTags.maxResourceSize);
}
rc.setByteValue(outBuff.toByteArray());
r.setContentLength(clen);
if (!intf.updateQuota(getOwner(),
clen - oldSize)) {
throw new WebdavForbidden(WebdavTags.quotaNotExceeded);
}
} catch (final Throwable t) {
throw new WebdavException(t);
}
}
@Override
public InputStream getBinaryContent() {
if (!isNotification()) {
return getBinaryStream();
}
if (getNotification() == null) {
return null;
}
return new ByteArrayInputStream(xmlNote.getBytes());
}
private InputStream getBinaryStream() {
if (rsrc == null) {
return null;
}
if (rsrc.getContent() == null) {
intf.getFileContent(this);
}
BwResourceContent bwrc = rsrc.getContent();
if (bwrc == null) {
return null;
}
try {
return bwrc.getBinaryStream();
} catch (final Throwable t) {
throw new RuntimeException(t);
}
}
private NotificationType getNotification() {
try {
note = Parser.fromXml(getBinaryStream());
if ((note == null) || (note.getNotification() == null)) {
return null;
}
note.getNotification().prefixHrefs(intf.getUrlHandler());
xmlNote = note.toXml(intf.bedeworkExtensionsEnabled());
return note;
} catch (final Throwable t) {
throw new RuntimeException(t);
}
}
/* (non-Javadoc)
* @see org.bedework.caldav.server.CalDAVResource#getContentLen()
*/
@Override
public long getContentLen() {
if (rsrc == null) {
return 0;
}
if (!isNotification()) {
return rsrc.getContentLength();
}
if (getNotification() == null) {
return 0;
}
return xmlNote.getBytes().length;
}
@Override
public long getQuotaSize() {
if (rsrc == null) {
return 0;
}
return rsrc.getContentLength();
}
/* (non-Javadoc)
* @see org.bedework.caldav.server.CalDAVResource#setContentType(java.lang.String)
*/
@Override
public void setContentType(final String val) {
getRsrc().setContentType(val);
}
/* (non-Javadoc)
* @see org.bedework.caldav.server.CalDAVResource#getContentType()
*/
@Override
public String getContentType() {
if (rsrc == null) {
return null;
}
String s = rsrc.getContentTypeStripped();
if (s == null) {
return null;
}
if (!NotificationType.isNotificationContentType(s)) {
return s;
}
return "application/xml";
}
@Override
public NotificationInfo getNotificationType() {
return NotificationType.fromContentType(rsrc.getContentType());
}
/* ====================================================================
* Overrides
* ==================================================================== */
@Override
public void setName(final String val) {
getRsrc().setName(val);
}
@Override
public String getName() {
String n = getRsrc().getName();
if (!n.endsWith(BwResource.tombstonedSuffix)) {
return n;
}
return n.substring(0, n.length() - BwResource.tombstonedSuffix.length());
}
@Override
public void setDisplayName(final String val) {
// No display name
}
@Override
public String getDisplayName() {
return getRsrc().getName();
}
@Override
public void setPath(final String val) {
// Not actually saved
}
@Override
public String getPath() {
return Util.buildPath(false, getRsrc().getColPath(), "/",
getRsrc().getName());
}
@Override
public void setParentPath(final String val) {
getRsrc().setColPath(val);
}
@Override
public String getParentPath() {
return getRsrc().getColPath();
}
@Override
public void setOwner(final AccessPrincipal val) {
super.setOwner(val);
getRsrc().setOwnerHref(val.getPrincipalRef());
}
@Override
public AccessPrincipal getOwner() {
try {
return intf.getPrincipal(getRsrc().getOwnerHref());
} catch (WebdavException e) {
throw new RuntimeException(e);
}
}
@Override
public void setCreated(final String val) {
getRsrc().setCreated(val);
}
@Override
public String getCreated() {
return getRsrc().getCreated();
}
@Override
public void setLastmod(final String val) {
getRsrc().setLastmod(val);
}
@Override
public String getLastmod() {
return getRsrc().getLastmod();
}
@Override
public String getEtag() {
return getRsrc().getEtag();
}
@Override
public String getPreviousEtag() {
return getRsrc().getPreviousEtag();
}
@Override
public void setDescription(final String val) {
// No description
}
@Override
public String getDescription() {
return getRsrc().getName();
}
/* ====================================================================
* Package methods
* ==================================================================== */
BwResource getRsrc() {
if (rsrc == null) {
rsrc = new BwResource();
}
return rsrc;
}
/* ====================================================================
* Private methods
* ==================================================================== */
private boolean isNotification() {
if (rsrc == null) {
return false;
}
String s = rsrc.getContentTypeStripped();
if (s == null) {
return false;
}
return NotificationType.isNotificationContentType(s);
}
}
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