PHP PropFind::getDepth方法代碼示例

 /**
  * 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);
     });
 }