/**
* Fetches properties for a path.
*
* @param string $path
* @param PropFind $propFind
* @return void
*/
public function propFind($path, PropFind $propFind)
{
try {
$node = $this->tree->getNodeForPath($path);
if (!$node instanceof Node) {
return;
}
} catch (ServiceUnavailable $e) {
// might happen for unavailable mount points, skip
return;
} catch (NotFound $e) {
// in some rare (buggy) cases the node might not be found,
// we catch the exception to prevent breaking the whole list with a 404
// (soft fail)
\OC::$server->getLogger()->warning('Could not get node for path: \\"' . $path . '\\" : ' . $e->getMessage(), array('app' => 'files'));
return;
}
$requestedProps = $propFind->get404Properties();
// these might appear
$requestedProps = array_diff($requestedProps, $this->ignoredProperties);
if (empty($requestedProps)) {
return;
}
if ($node instanceof Directory && $propFind->getDepth() !== 0) {
// note: pre-fetching only supported for depth <= 1
$this->loadChildrenProperties($node, $requestedProps);
}
$props = $this->getProperties($node, $requestedProps);
foreach ($props as $propName => $propValue) {
$propFind->set($propName, $propValue);
}
}
/**
* Small helper to support PROPFIND with DEPTH_INFINITY.
*/
private function addPathNodesRecursively(&$propFindRequests, PropFind $propFind) {
$newDepth = $propFind->getDepth();
$path = $propFind->getPath();
if ($newDepth !== self::DEPTH_INFINITY) {
$newDepth--;
}
foreach ($this->tree->getChildren($path) as $childNode) {
$subPropFind = clone $propFind;
$subPropFind->setDepth($newDepth);
$subPath = $path ? $path . '/' . $childNode->getName() : $childNode->getName();
$subPropFind->setPath($subPath);
$propFindRequests[] = [
$subPropFind,
$childNode
];
if (($newDepth === self::DEPTH_INFINITY || $newDepth >= 1) && $childNode instanceof ICollection) {
$this->addPathNodesRecursively($propFindRequests, $subPropFind);
}
}
}
/**
* Adds tags and favorites properties to the response,
* if requested.
*
* @param PropFind $propFind
* @param \Sabre\DAV\INode $node
* @return void
*/
public function handleGetProperties(PropFind $propFind, \Sabre\DAV\INode $node)
{
if (!$node instanceof \OCA\DAV\Connector\Sabre\Node) {
return;
}
// need prefetch ?
if ($node instanceof \OCA\DAV\Connector\Sabre\Directory && $propFind->getDepth() !== 0 && (!is_null($propFind->getStatus(self::TAGS_PROPERTYNAME)) || !is_null($propFind->getStatus(self::FAVORITE_PROPERTYNAME)))) {
// note: pre-fetching only supported for depth <= 1
$folderContent = $node->getChildren();
$fileIds[] = (int) $node->getId();
foreach ($folderContent as $info) {
$fileIds[] = (int) $info->getId();
}
$tags = $this->getTagger()->getTagsForObjects($fileIds);
if ($tags === false) {
// the tags API returns false on error...
$tags = array();
}
$this->cachedTags = $this->cachedTags + $tags;
$emptyFileIds = array_diff($fileIds, array_keys($tags));
// also cache the ones that were not found
foreach ($emptyFileIds as $fileId) {
$this->cachedTags[$fileId] = [];
}
}
$tags = null;
$isFav = null;
$propFind->handle(self::TAGS_PROPERTYNAME, function () use($tags, &$isFav, $node) {
list($tags, $isFav) = $this->getTagsAndFav($node->getId());
return new TagList($tags);
});
$propFind->handle(self::FAVORITE_PROPERTYNAME, function () use($isFav, $node) {
if (is_null($isFav)) {
list(, $isFav) = $this->getTagsAndFav($node->getId());
}
return $isFav;
});
}
/**
* Adds shares to propfind response
*
* @param PropFind $propFind propfind object
* @param \Sabre\DAV\INode $sabreNode sabre node
*/
public function handleGetProperties(PropFind $propFind, \Sabre\DAV\INode $sabreNode)
{
if (!$sabreNode instanceof \OCA\DAV\Connector\Sabre\Node) {
return;
}
// need prefetch ?
if ($sabreNode instanceof \OCA\DAV\Connector\Sabre\Directory && $propFind->getDepth() !== 0 && !is_null($propFind->getStatus(self::SHARETYPES_PROPERTYNAME))) {
$folderNode = $this->userFolder->get($propFind->getPath());
$children = $folderNode->getDirectoryListing();
$this->cachedShareTypes[$folderNode->getId()] = $this->getShareTypes($folderNode);
foreach ($children as $childNode) {
$this->cachedShareTypes[$childNode->getId()] = $this->getShareTypes($childNode);
}
}
$propFind->handle(self::SHARETYPES_PROPERTYNAME, function () use($sabreNode) {
if (isset($this->cachedShareTypes[$sabreNode->getId()])) {
$shareTypes = $this->cachedShareTypes[$sabreNode->getId()];
} else {
$node = $this->userFolder->get($sabreNode->getPath());
$shareTypes = $this->getShareTypes($node);
}
return new ShareTypeList($shareTypes);
});
}
