Enumeration lockPathsList = lockPaths.elements();
resp.setStatus(WebdavStatus.SC_CONFLICT);
XMLWriter generatedXML = new XMLWriter();
generatedXML.writeXMLHeader();
generatedXML.writeElement("D", DEFAULT_NAMESPACE,
"multistatus", XMLWriter.OPENING);
while (lockPathsList.hasMoreElements()) {
generatedXML.writeElement("D", "response",
XMLWriter.OPENING);
generatedXML.writeElement("D", "href",
XMLWriter.OPENING);
generatedXML.writeText(
(String) lockPathsList.nextElement());
generatedXML.writeElement("D", "href",
XMLWriter.CLOSING);
generatedXML.writeElement("D", "status",
XMLWriter.OPENING);
generatedXML
.writeText("HTTP/1.1 " + WebdavStatus.SC_LOCKED
+ " " + WebdavStatus
.getStatusText(WebdavStatus.SC_LOCKED));
generatedXML.writeElement("D", "status",
XMLWriter.CLOSING);
generatedXML.writeElement("D", "response",
XMLWriter.CLOSING);
}
generatedXML.writeElement("D", "multistatus",
XMLWriter.CLOSING);
Writer writer = resp.getWriter();
writer.write(generatedXML.toString());
writer.close();
return;
}
boolean addLock = true;
// Checking if there is already a shared lock on this path
locksList = collectionLocks.elements();
while (locksList.hasMoreElements()) {
LockInfo currentLock = (LockInfo) locksList.nextElement();
if (currentLock.path.equals(lock.path)) {
if (currentLock.isExclusive()) {
resp.sendError(WebdavStatus.SC_LOCKED);
return;
} else {
if (lock.isExclusive()) {
resp.sendError(WebdavStatus.SC_LOCKED);
return;
}
}
currentLock.tokens.addElement(lockToken);
lock = currentLock;
addLock = false;
}
}
if (addLock) {
lock.tokens.addElement(lockToken);
collectionLocks.addElement(lock);
}
} else {
// Locking a single resource
// Retrieving an already existing lock on that resource
LockInfo presentLock = (LockInfo) resourceLocks.get(lock.path);
if (presentLock != null) {
if ((presentLock.isExclusive()) || (lock.isExclusive())) {
// If either lock is exclusive, the lock can't be
// granted
resp.sendError(WebdavStatus.SC_PRECONDITION_FAILED);
return;
} else {
presentLock.tokens.addElement(lockToken);
lock = presentLock;
}
} else {
lock.tokens.addElement(lockToken);
resourceLocks.put(lock.path, lock);
// Checking if a resource exists at this path
exists = true;
try {
object = resources.lookup(path);
} catch (NamingException e) {
exists = false;
}
if (!exists) {
// "Creating" a lock-null resource
int slash = lock.path.lastIndexOf('/');
String parentPath = lock.path.substring(0, slash);
Vector<String> lockNulls =
lockNullResources.get(parentPath);
if (lockNulls == null) {
lockNulls = new Vector<String>();
lockNullResources.put(parentPath, lockNulls);
}
lockNulls.addElement(lock.path);
}
// Add the Lock-Token header as by RFC 2518 8.10.1
// - only do this for newly created locks
resp.addHeader("Lock-Token", "<opaquelocktoken:"
+ lockToken + ">");
}
}
}
if (lockRequestType == LOCK_REFRESH) {
String ifHeader = req.getHeader("If");
if (ifHeader == null)
ifHeader = "";
// Checking resource locks
LockInfo toRenew = (LockInfo) resourceLocks.get(path);
Enumeration tokenList = null;
if (toRenew != null) {
// At least one of the tokens of the locks must have been given
tokenList = toRenew.tokens.elements();
while (tokenList.hasMoreElements()) {
String token = (String) tokenList.nextElement();
if (ifHeader.indexOf(token) != -1) {
toRenew.expiresAt = lock.expiresAt;
lock = toRenew;
}
}
}
// Checking inheritable collection locks
Enumeration collectionLocksList = collectionLocks.elements();
while (collectionLocksList.hasMoreElements()) {
toRenew = (LockInfo) collectionLocksList.nextElement();
if (path.equals(toRenew.path)) {
tokenList = toRenew.tokens.elements();
while (tokenList.hasMoreElements()) {
String token = (String) tokenList.nextElement();
if (ifHeader.indexOf(token) != -1) {
toRenew.expiresAt = lock.expiresAt;
lock = toRenew;
}
}
}
}
}
// Set the status, then generate the XML response containing
// the lock information
XMLWriter generatedXML = new XMLWriter();
generatedXML.writeXMLHeader();
generatedXML.writeElement("D", DEFAULT_NAMESPACE, "prop",
XMLWriter.OPENING);
generatedXML.writeElement("D", "lockdiscovery", XMLWriter.OPENING);
lock.toXML(generatedXML);
generatedXML.writeElement("D", "lockdiscovery", XMLWriter.CLOSING);
generatedXML.writeElement("D", "prop", XMLWriter.CLOSING);
resp.setStatus(WebdavStatus.SC_OK);
resp.setContentType("text/xml; charset=UTF-8");
Writer writer = resp.getWriter();
writer.write(generatedXML.toString());
writer.close();
}