/**
* Handles DELETE requests.
*
* Performs all lock related checks necessary for the DELETE request. In case
* a violation with locks is detected or any other pre-condition check
* fails, this method returns an instance of {@link ezcWebdavResponse}. If
* everything is correct, null is returned, so that the $request is handled
* by the backend.
*
* @param ezcWebdavRequest $request ezcWebdavDeleteRequest
* @return ezcWebdavResponse|null
*/
public function receivedRequest(ezcWebdavRequest $request)
{
$ifHeader = $request->getHeader('If');
$targetLockRefresher = null;
if ($ifHeader !== null) {
$targetLockRefresher = new ezcWebdavLockRefreshRequestGenerator($request);
}
$violation = $this->tools->checkViolations(new ezcWebdavLockCheckInfo($request->requestUri, ezcWebdavRequest::DEPTH_INFINITY, $request->getHeader('If'), $request->getHeader('Authorization'), ezcWebdavAuthorizer::ACCESS_WRITE, $targetLockRefresher), true);
// Lock refresh must occur no matter if the request succeeds
if ($targetLockRefresher !== null) {
$targetLockRefresher->sendRequests();
}
if ($violation !== null) {
// ezcWebdavErrorResponse
return $violation;
}
}
/**
* Handles MKCOL requests.
*
* Performs all lock related checks necessary for the MKCOL request. In
* case a violation with locks is detected or any other pre-condition check
* fails, this method returns an instance of {@link ezcWebdavResponse}. If
* everything is correct, null is returned, so that the $request is handled
* by the backend.
*
* @param ezcWebdavRequest $request ezcWebdavMakeCollectionRequest
* @return ezcWebdavResponse|null
*/
public function receivedRequest(ezcWebdavRequest $request)
{
$this->request = $request;
$target = $request->requestUri;
$parent = dirname($target);
$ifHeader = $request->getHeader('If');
$authHeader = $request->getHeader('Authorization');
$targetLockRefresher = null;
if ($ifHeader !== null) {
$targetLockRefresher = new ezcWebdavLockRefreshRequestGenerator($request);
}
$violation = $this->tools->checkViolations(new ezcWebdavLockCheckInfo($target, ezcWebdavRequest::DEPTH_ZERO, $ifHeader, $authHeader, ezcWebdavAuthorizer::ACCESS_WRITE, $targetLockRefresher), true);
if ($violation !== null && $violation->status !== ezcWebdavResponse::STATUS_404) {
// Desired collection exists and conditions are violated
return $violation;
}
if ($violation !== null && $violation->status === ezcWebdavResponse::STATUS_404) {
// Desired collection does not exist, check parent
$violation = $this->tools->checkViolations(new ezcWebdavLockCheckInfo($parent, ezcWebdavRequest::DEPTH_ZERO, $ifHeader, $authHeader, ezcWebdavAuthorizer::ACCESS_WRITE, $targetLockRefresher), true);
if ($violation !== null) {
if ($violation->status === ezcWebdavResponse::STATUS_404) {
// The parent does not exist, not the target.
$violation->status = ezcWebdavResponse::STATUS_409;
}
return $violation;
}
}
// Lock refresh must occur no matter if the request succeeds
if ($targetLockRefresher !== null) {
$targetLockRefresher->sendRequests();
// Store property for later patching
$this->lockDiscoveryProp = $targetLockRefresher->getLockDiscoveryProperty($target);
if ($this->lockDiscoveryProp === null) {
$this->lockDiscoveryProp = $targetLockRefresher->getLockDiscoveryProperty($parent);
$this->isParentProp = true;
}
}
return null;
}
/**
* Handles PROPPATCH requests.
*
* Performs all lock related checks necessary for the PROPPATCH request. In
* case a violation with locks is detected or any other pre-condition check
* fails, this method returns an instance of {@link ezcWebdavResponse}. If
* everything is correct, null is returned, so that the $request is handled
* by the backend.
*
* @param ezcWebdavPropPatchRequest $request
* @return ezcWebdavResponse
*/
public function receivedRequest(ezcWebdavRequest $request)
{
$ifHeader = $request->getHeader('If');
$targetLockRefresher = null;
if ($ifHeader !== null) {
$targetLockRefresher = new ezcWebdavLockRefreshRequestGenerator($request);
}
$violation = $this->tools->checkViolations(new ezcWebdavLockCheckInfo($request->requestUri, ezcWebdavRequest::DEPTH_ZERO, $request->getHeader('If'), $request->getHeader('Authorization'), ezcWebdavAuthorizer::ACCESS_WRITE, $targetLockRefresher, false), true);
if ($violation !== null) {
// ezcWebdavErrorResponse
return $violation;
}
// Lock refresh must occur no matter if the request succeeds
if ($targetLockRefresher !== null) {
$targetLockRefresher->sendRequests();
}
if ($request->updates->contains('lockdiscovery')) {
return new ezcWebdavMultistatusResponse(new ezcWebdavErrorResponse(ezcWebdavResponse::STATUS_409, $request->requestUri, "Property 'lockdiscovery' is readonly."));
}
if ($request->updates->contains('lockinfo')) {
return new ezcWebdavMultistatusResponse(new ezcWebdavErrorResponse(ezcWebdavResponse::STATUS_409, $request->requestUri, "Property 'lockinfo' is readonly."));
}
}
/**
* Handles COPY requests.
*
* Performs all lock related checks necessary for the COPY request. In case
* a violation with locks is detected or any other pre-condition check
* fails, this method returns an instance of {@link ezcWebdavResponse}. If
* everything is correct, null is returned, so that the $request is handled
* by the backend.
*
* @param ezcWebdavRequest $request ezcWebdavCopyRequest
* @return ezcWebdavResponse|null
*/
public function receivedRequest(ezcWebdavRequest $request)
{
$backend = ezcWebdavServer::getInstance()->backend;
$this->request = $request;
$destination = $request->getHeader('Destination');
$destParent = dirname($destination);
$ifHeader = $request->getHeader('If');
$authHeader = $request->getHeader('Authorization');
// Check destination parent and collect the lock properties to
// set after successfully moving
$destinationLockRefresher = new ezcWebdavLockRefreshRequestGenerator($request);
$violation = $this->tools->checkViolations(new ezcWebdavLockCheckInfo($destParent, ezcWebdavRequest::DEPTH_ZERO, $ifHeader, $authHeader, ezcWebdavAuthorizer::ACCESS_WRITE, $destinationLockRefresher), true);
if ($violation !== null) {
if ($violation->status === ezcWebdavResponse::STATUS_404) {
// Destination parent not found
return new ezcWebdavErrorResponse(ezcWebdavResponse::STATUS_409, $violation->requestUri);
}
return $violation;
}
// Check destination itself, if it exsists
$violation = $this->tools->checkViolations(new ezcWebdavLockCheckInfo($destination, ezcWebdavRequest::DEPTH_INFINITY, $ifHeader, $authHeader, ezcWebdavAuthorizer::ACCESS_WRITE, $destinationLockRefresher), true);
// Destination might be there but not violated, or might not be there
if ($violation !== null && $violation->status !== ezcWebdavResponse::STATUS_404) {
// ezcWebdavErrorResponse
return $violation;
}
// Perform lock refresh (must occur no matter if request succeeds)
$destinationLockRefresher->sendRequests();
// Store infos for use on correct moving
// @TODO: Do we always get the correct property here?
$this->lockDiscoveryProp = $destinationLockRefresher->getLockDiscoveryProperty($destParent);
$sourcePaths = $this->getSourcePaths();
if (is_object($sourcePaths)) {
// ezcWebdavErrorResponse
return $sourcePaths;
}
$this->sourcePaths = $sourcePaths;
// Backend now handles the request
return null;
}
/**
* Performs a manual request for a lock.
*
* Clients may send a lock request without a body and with an If header, to
* indicate they want to reset the timeout for a lock. This method handles
* such requests.
*
* @param ezcWebdavLockRequest $request
* @return ezcWebdavResponse
*/
protected function refreshLock(ezcWebdavLockRequest $request)
{
if (($ifHeader = $request->getHeader('If')) === null) {
return new ezcWebdavErrorResponse(ezcWebdavResponse::STATUS_412, 'If header needs to be provided to refresh a lock.');
}
$reqGen = new ezcWebdavLockRefreshRequestGenerator($request);
$violation = $this->tools->checkViolations(new ezcWebdavLockCheckInfo($request->requestUri, $request->getHeader('Depth'), $request->getHeader('If'), $request->getHeader('Authorization'), ezcWebdavAuthorizer::ACCESS_WRITE, $reqGen));
if ($violation !== null) {
return $this->createLockError($violation);
}
$reqGen->sendRequests();
return new ezcWebdavLockResponse($reqGen->getLockDiscoveryProperty($request->requestUri));
}
