/**
* Get the source cache of a shared file or folder
*
* @param string $target Shared target file path
* @return \OC\Files\Cache\Cache
*/
private function getSourceCache($target)
{
if ($target === false || $target === $this->storage->getMountPoint()) {
$target = '';
}
$source = \OC_Share_Backend_File::getSource($target, $this->storage->getMountPoint(), $this->storage->getItemType());
if (isset($source['path']) && isset($source['fileOwner'])) {
try {
\OC\Files\Filesystem::initMountPoints($source['fileOwner']);
} catch (NoUserException $e) {
\OC::$server->getLogger()->warning('The user \'' . $source['uid_owner'] . '\' of a share can\'t be retrieved.', array('app' => 'files_sharing'));
return false;
}
$mounts = \OC\Files\Filesystem::getMountByNumericId($source['storage']);
if (is_array($mounts) and !empty($mounts)) {
$fullPath = $mounts[0]->getMountPoint() . $source['path'];
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($fullPath);
if ($storage) {
$this->files[$target] = $internalPath;
$cache = $storage->getCache();
$this->storageId = $storage->getId();
$this->numericId = $cache->getNumericStorageId();
return $cache;
}
}
}
return false;
}
/**
* @brief Get the source file path for a shared file
* @param string Shared target file path
* @return string source file path or false if not found
*/
public function getSourcePath($target)
{
$source = $this->getFile($target);
if ($source) {
if (!isset($source['fullPath'])) {
\OC\Files\Filesystem::initMountPoints($source['fileOwner']);
$mount = \OC\Files\Filesystem::getMountByNumericId($source['storage']);
if (is_array($mount)) {
$this->files[$target]['fullPath'] = $mount[key($mount)]->getMountPoint() . $source['path'];
} else {
$this->files[$target]['fullPath'] = false;
}
}
return $this->files[$target]['fullPath'];
}
return false;
}
/**
* @brief Get the source cache of a shared file or folder
* @param string $target Shared target file path
* @return \OC\Files\Cache\Cache
*/
private function getSourceCache($target)
{
$source = \OC_Share_Backend_File::getSource($target);
if (isset($source['path']) && isset($source['fileOwner'])) {
\OC\Files\Filesystem::initMountPoints($source['fileOwner']);
$mount = \OC\Files\Filesystem::getMountByNumericId($source['storage']);
if (is_array($mount)) {
$fullPath = $mount[key($mount)]->getMountPoint() . $source['path'];
list($storage, $internalPath) = \OC\Files\Filesystem::resolvePath($fullPath);
if ($storage) {
$this->files[$target] = $internalPath;
$cache = $storage->getCache();
$this->storageId = $storage->getId();
$this->numericId = $cache->getNumericStorageId();
return $cache;
}
}
}
return false;
}
/**
* Get the source file path for a shared file
*
* @param string $target Shared target file path
* @return string|false source file path or false if not found
*/
public function getSourcePath($target)
{
$source = $this->getFile($target);
if ($source) {
if (!isset($source['fullPath'])) {
\OC\Files\Filesystem::initMountPoints($source['fileOwner']);
$mount = \OC\Files\Filesystem::getMountByNumericId($source['storage']);
if (is_array($mount) && !empty($mount)) {
$this->files[$target]['fullPath'] = $mount[key($mount)]->getMountPoint() . $source['path'];
} else {
$this->files[$target]['fullPath'] = false;
\OCP\Util::writeLog('files_sharing', "Unable to get mount for shared storage '" . $source['storage'] . "' user '" . $source['fileOwner'] . "'", \OCP\Util::ERROR);
}
}
return $this->files[$target]['fullPath'];
}
return false;
}
/**
* Get shared items from the database
* @param string $itemType
* @param string $item Item source or target (optional)
* @param int $shareType SHARE_TYPE_USER, SHARE_TYPE_GROUP, SHARE_TYPE_LINK, $shareTypeUserAndGroups, or $shareTypeGroupUserUnique
* @param string $shareWith User or group the item is being shared with
* @param string $uidOwner User that is the owner of shared items (optional)
* @param int $format Format to convert items to with formatItems() (optional)
* @param mixed $parameters to pass to formatItems() (optional)
* @param int $limit Number of items to return, -1 to return all matches (optional)
* @param boolean $includeCollections Include collection item types (optional)
* @param boolean $itemShareWithBySource (optional)
* @param boolean $checkExpireDate
* @return array
*
* See public functions getItem(s)... for parameter usage
*
*/
public static function getItems($itemType, $item = null, $shareType = null, $shareWith = null, $uidOwner = null, $format = self::FORMAT_NONE, $parameters = null, $limit = -1, $includeCollections = false, $itemShareWithBySource = false, $checkExpireDate = true)
{
if (!self::isEnabled()) {
return array();
}
$backend = self::getBackend($itemType);
$collectionTypes = false;
// Get filesystem root to add it to the file target and remove from the
// file source, match file_source with the file cache
if ($itemType == 'file' || $itemType == 'folder') {
if (!is_null($uidOwner)) {
$root = \OC\Files\Filesystem::getRoot();
} else {
$root = '';
}
$where = 'INNER JOIN `*PREFIX*filecache` ON `file_source` = `*PREFIX*filecache`.`fileid` ';
if (!isset($item)) {
$where .= ' AND `file_target` IS NOT NULL ';
}
$where .= 'INNER JOIN `*PREFIX*storages` ON `numeric_id` = `*PREFIX*filecache`.`storage` ';
$fileDependent = true;
$queryArgs = array();
} else {
$fileDependent = false;
$root = '';
$collectionTypes = self::getCollectionItemTypes($itemType);
if ($includeCollections && !isset($item) && $collectionTypes) {
// If includeCollections is true, find collections of this item type, e.g. a music album contains songs
if (!in_array($itemType, $collectionTypes)) {
$itemTypes = array_merge(array($itemType), $collectionTypes);
} else {
$itemTypes = $collectionTypes;
}
$placeholders = join(',', array_fill(0, count($itemTypes), '?'));
$where = ' WHERE `item_type` IN (' . $placeholders . '))';
$queryArgs = $itemTypes;
} else {
$where = ' WHERE `item_type` = ?';
$queryArgs = array($itemType);
}
}
if (\OC::$server->getAppConfig()->getValue('core', 'shareapi_allow_links', 'yes') !== 'yes') {
$where .= ' AND `share_type` != ?';
$queryArgs[] = self::SHARE_TYPE_LINK;
}
if (isset($shareType)) {
// Include all user and group items
if ($shareType == self::$shareTypeUserAndGroups && isset($shareWith)) {
$where .= ' AND ((`share_type` in (?, ?) AND `share_with` = ?) ';
$queryArgs[] = self::SHARE_TYPE_USER;
$queryArgs[] = self::$shareTypeGroupUserUnique;
$queryArgs[] = $shareWith;
$groups = \OC_Group::getUserGroups($shareWith);
if (!empty($groups)) {
$placeholders = join(',', array_fill(0, count($groups), '?'));
$where .= ' OR (`share_type` = ? AND `share_with` IN (' . $placeholders . ')) ';
$queryArgs[] = self::SHARE_TYPE_GROUP;
$queryArgs = array_merge($queryArgs, $groups);
}
$where .= ')';
// Don't include own group shares
$where .= ' AND `uid_owner` != ?';
$queryArgs[] = $shareWith;
} else {
$where .= ' AND `share_type` = ?';
$queryArgs[] = $shareType;
if (isset($shareWith)) {
$where .= ' AND `share_with` = ?';
$queryArgs[] = $shareWith;
}
}
}
if (isset($uidOwner)) {
$where .= ' AND `uid_owner` = ?';
$queryArgs[] = $uidOwner;
if (!isset($shareType)) {
// Prevent unique user targets for group shares from being selected
$where .= ' AND `share_type` != ?';
$queryArgs[] = self::$shareTypeGroupUserUnique;
}
if ($fileDependent) {
$column = 'file_source';
} else {
$column = 'item_source';
}
} else {
if ($fileDependent) {
$column = 'file_target';
} else {
$column = 'item_target';
}
}
if (isset($item)) {
$collectionTypes = self::getCollectionItemTypes($itemType);
if ($includeCollections && $collectionTypes && !in_array('folder', $collectionTypes)) {
$where .= ' AND (';
} else {
$where .= ' AND';
}
// If looking for own shared items, check item_source else check item_target
if (isset($uidOwner) || $itemShareWithBySource) {
// If item type is a file, file source needs to be checked in case the item was converted
if ($fileDependent) {
$where .= ' `file_source` = ?';
$column = 'file_source';
} else {
$where .= ' `item_source` = ?';
$column = 'item_source';
}
} else {
if ($fileDependent) {
$where .= ' `file_target` = ?';
$item = \OC\Files\Filesystem::normalizePath($item);
} else {
$where .= ' `item_target` = ?';
}
}
$queryArgs[] = $item;
if ($includeCollections && $collectionTypes && !in_array('folder', $collectionTypes)) {
$placeholders = join(',', array_fill(0, count($collectionTypes), '?'));
$where .= ' OR `item_type` IN (' . $placeholders . '))';
$queryArgs = array_merge($queryArgs, $collectionTypes);
}
}
if ($shareType == self::$shareTypeUserAndGroups && $limit === 1) {
// Make sure the unique user target is returned if it exists,
// unique targets should follow the group share in the database
// If the limit is not 1, the filtering can be done later
$where .= ' ORDER BY `*PREFIX*share`.`id` DESC';
} else {
$where .= ' ORDER BY `*PREFIX*share`.`id` ASC';
}
if ($limit != -1 && !$includeCollections) {
// The limit must be at least 3, because filtering needs to be done
if ($limit < 3) {
$queryLimit = 3;
} else {
$queryLimit = $limit;
}
} else {
$queryLimit = null;
}
$select = self::createSelectStatement($format, $fileDependent, $uidOwner);
$root = strlen($root);
$query = \OC_DB::prepare('SELECT ' . $select . ' FROM `*PREFIX*share` ' . $where, $queryLimit);
$result = $query->execute($queryArgs);
if (\OC_DB::isError($result)) {
\OCP\Util::writeLog('OCP\\Share', \OC_DB::getErrorMessage() . ', select=' . $select . ' where=', \OCP\Util::ERROR);
}
$items = array();
$targets = array();
$switchedItems = array();
$mounts = array();
while ($row = $result->fetchRow()) {
self::transformDBResults($row);
// Filter out duplicate group shares for users with unique targets
if ($fileDependent && !self::isFileReachable($row['path'], $row['storage_id'])) {
continue;
}
if ($row['share_type'] == self::$shareTypeGroupUserUnique && isset($items[$row['parent']])) {
$row['share_type'] = self::SHARE_TYPE_GROUP;
$row['unique_name'] = true;
// remember that we use a unique name for this user
$row['share_with'] = $items[$row['parent']]['share_with'];
// if the group share was unshared from the user we keep the permission, otherwise
// we take the permission from the parent because this is always the up-to-date
// permission for the group share
if ($row['permissions'] > 0) {
$row['permissions'] = $items[$row['parent']]['permissions'];
}
// Remove the parent group share
unset($items[$row['parent']]);
if ($row['permissions'] == 0) {
continue;
}
} else {
if (!isset($uidOwner)) {
// Check if the same target already exists
if (isset($targets[$row['id']])) {
// Check if the same owner shared with the user twice
// through a group and user share - this is allowed
$id = $targets[$row['id']];
if (isset($items[$id]) && $items[$id]['uid_owner'] == $row['uid_owner']) {
// Switch to group share type to ensure resharing conditions aren't bypassed
if ($items[$id]['share_type'] != self::SHARE_TYPE_GROUP) {
$items[$id]['share_type'] = self::SHARE_TYPE_GROUP;
$items[$id]['share_with'] = $row['share_with'];
}
// Switch ids if sharing permission is granted on only
// one share to ensure correct parent is used if resharing
if (~(int) $items[$id]['permissions'] & \OCP\Constants::PERMISSION_SHARE && (int) $row['permissions'] & \OCP\Constants::PERMISSION_SHARE) {
$items[$row['id']] = $items[$id];
$switchedItems[$id] = $row['id'];
unset($items[$id]);
$id = $row['id'];
}
$items[$id]['permissions'] |= (int) $row['permissions'];
}
continue;
} elseif (!empty($row['parent'])) {
$targets[$row['parent']] = $row['id'];
}
}
}
// Remove root from file source paths if retrieving own shared items
if (isset($uidOwner) && isset($row['path'])) {
if (isset($row['parent'])) {
$query = \OC_DB::prepare('SELECT `file_target` FROM `*PREFIX*share` WHERE `id` = ?');
$parentResult = $query->execute(array($row['parent']));
if (\OC_DB::isError($result)) {
\OCP\Util::writeLog('OCP\\Share', 'Can\'t select parent: ' . \OC_DB::getErrorMessage() . ', select=' . $select . ' where=' . $where, \OCP\Util::ERROR);
} else {
$parentRow = $parentResult->fetchRow();
$tmpPath = $parentRow['file_target'];
// find the right position where the row path continues from the target path
$pos = strrpos($row['path'], $parentRow['file_target']);
$subPath = substr($row['path'], $pos);
$splitPath = explode('/', $subPath);
foreach (array_slice($splitPath, 2) as $pathPart) {
$tmpPath = $tmpPath . '/' . $pathPart;
}
$row['path'] = $tmpPath;
}
} else {
if (!isset($mounts[$row['storage']])) {
$mountPoints = \OC\Files\Filesystem::getMountByNumericId($row['storage']);
if (is_array($mountPoints) && !empty($mountPoints)) {
$mounts[$row['storage']] = current($mountPoints);
}
}
if (!empty($mounts[$row['storage']])) {
$path = $mounts[$row['storage']]->getMountPoint() . $row['path'];
$relPath = substr($path, $root);
// path relative to data/user
$row['path'] = rtrim($relPath, '/');
}
}
}
if ($checkExpireDate) {
if (self::expireItem($row)) {
continue;
}
}
// Check if resharing is allowed, if not remove share permission
if (isset($row['permissions']) && !self::isResharingAllowed() | \OCP\Util::isSharingDisabledForUser()) {
$row['permissions'] &= ~\OCP\Constants::PERMISSION_SHARE;
}
// Add display names to result
$row['share_with_displayname'] = $row['share_with'];
if (isset($row['share_with']) && $row['share_with'] != '' && $row['share_type'] === self::SHARE_TYPE_USER) {
$row['share_with_displayname'] = \OCP\User::getDisplayName($row['share_with']);
} else {
if (isset($row['share_with']) && $row['share_with'] != '' && $row['share_type'] === self::SHARE_TYPE_REMOTE) {
$addressBookEntries = \OC::$server->getContactsManager()->search($row['share_with'], ['CLOUD']);
foreach ($addressBookEntries as $entry) {
foreach ($entry['CLOUD'] as $cloudID) {
if ($cloudID === $row['share_with']) {
$row['share_with_displayname'] = $entry['FN'];
}
}
}
}
}
if (isset($row['uid_owner']) && $row['uid_owner'] != '') {
$row['displayname_owner'] = \OCP\User::getDisplayName($row['uid_owner']);
}
if ($row['permissions'] > 0) {
$items[$row['id']] = $row;
}
}
// group items if we are looking for items shared with the current user
if (isset($shareWith) && $shareWith === \OCP\User::getUser()) {
$items = self::groupItems($items, $itemType);
}
if (!empty($items)) {
$collectionItems = array();
foreach ($items as &$row) {
// Return only the item instead of a 2-dimensional array
if ($limit == 1 && $row[$column] == $item && ($row['item_type'] == $itemType || $itemType == 'file')) {
if ($format == self::FORMAT_NONE) {
return $row;
} else {
break;
}
}
// Check if this is a collection of the requested item type
if ($includeCollections && $collectionTypes && $row['item_type'] !== 'folder' && in_array($row['item_type'], $collectionTypes)) {
if (($collectionBackend = self::getBackend($row['item_type'])) && $collectionBackend instanceof \OCP\Share_Backend_Collection) {
// Collections can be inside collections, check if the item is a collection
if (isset($item) && $row['item_type'] == $itemType && $row[$column] == $item) {
$collectionItems[] = $row;
} else {
$collection = array();
$collection['item_type'] = $row['item_type'];
if ($row['item_type'] == 'file' || $row['item_type'] == 'folder') {
$collection['path'] = basename($row['path']);
}
$row['collection'] = $collection;
// Fetch all of the children sources
$children = $collectionBackend->getChildren($row[$column]);
foreach ($children as $child) {
$childItem = $row;
$childItem['item_type'] = $itemType;
if ($row['item_type'] != 'file' && $row['item_type'] != 'folder') {
$childItem['item_source'] = $child['source'];
$childItem['item_target'] = $child['target'];
}
if ($backend instanceof \OCP\Share_Backend_File_Dependent) {
if ($row['item_type'] == 'file' || $row['item_type'] == 'folder') {
$childItem['file_source'] = $child['source'];
} else {
// TODO is this really needed if we already know that we use the file backend?
$meta = \OC\Files\Filesystem::getFileInfo($child['file_path']);
$childItem['file_source'] = $meta['fileid'];
}
$childItem['file_target'] = \OC\Files\Filesystem::normalizePath($child['file_path']);
}
if (isset($item)) {
if ($childItem[$column] == $item) {
// Return only the item instead of a 2-dimensional array
if ($limit == 1) {
if ($format == self::FORMAT_NONE) {
return $childItem;
} else {
// Unset the items array and break out of both loops
$items = array();
$items[] = $childItem;
break 2;
}
} else {
$collectionItems[] = $childItem;
}
}
} else {
$collectionItems[] = $childItem;
}
}
}
}
// Remove collection item
$toRemove = $row['id'];
if (array_key_exists($toRemove, $switchedItems)) {
$toRemove = $switchedItems[$toRemove];
}
unset($items[$toRemove]);
} elseif ($includeCollections && $collectionTypes && in_array($row['item_type'], $collectionTypes)) {
// FIXME: Thats a dirty hack to improve file sharing performance,
// see github issue #10588 for more details
// Need to find a solution which works for all back-ends
$collectionBackend = self::getBackend($row['item_type']);
$sharedParents = $collectionBackend->getParents($row['item_source']);
foreach ($sharedParents as $parent) {
$collectionItems[] = $parent;
}
}
}
if (!empty($collectionItems)) {
$collectionItems = array_unique($collectionItems, SORT_REGULAR);
$items = array_merge($items, $collectionItems);
}
// filter out invalid items, these can appear when subshare entries exist
// for a group in which the requested user isn't a member any more
$items = array_filter($items, function ($item) {
return $item['share_type'] !== self::$shareTypeGroupUserUnique;
});
return self::formatResult($items, $column, $backend, $format, $parameters);
} elseif ($includeCollections && $collectionTypes && in_array('folder', $collectionTypes)) {
// FIXME: Thats a dirty hack to improve file sharing performance,
// see github issue #10588 for more details
// Need to find a solution which works for all back-ends
$collectionItems = array();
$collectionBackend = self::getBackend('folder');
$sharedParents = $collectionBackend->getParents($item, $shareWith, $uidOwner);
foreach ($sharedParents as $parent) {
$collectionItems[] = $parent;
}
if ($limit === 1) {
return reset($collectionItems);
}
return self::formatResult($collectionItems, $column, $backend, $format, $parameters);
}
return array();
}
/**
* Get shared items from the database
* @param string Item type
* @param string Item source or target (optional)
* @param int SHARE_TYPE_USER, SHARE_TYPE_GROUP, SHARE_TYPE_LINK, $shareTypeUserAndGroups, or $shareTypeGroupUserUnique
* @param string User or group the item is being shared with
* @param string User that is the owner of shared items (optional)
* @param int Format to convert items to with formatItems()
* @param mixed Parameters to pass to formatItems()
* @param int Number of items to return, -1 to return all matches (optional)
* @param bool Include collection item types (optional)
* @param bool TODO (optional)
* @prams bool check expire date
* @return mixed
*
* See public functions getItem(s)... for parameter usage
*
*/
private static function getItems($itemType, $item = null, $shareType = null, $shareWith = null, $uidOwner = null, $format = self::FORMAT_NONE, $parameters = null, $limit = -1, $includeCollections = false, $itemShareWithBySource = false, $checkExpireDate = true)
{
if (!self::isEnabled()) {
if ($limit == 1 || isset($uidOwner) && isset($item)) {
return false;
} else {
return array();
}
}
$backend = self::getBackend($itemType);
$collectionTypes = false;
// Get filesystem root to add it to the file target and remove from the
// file source, match file_source with the file cache
if ($itemType == 'file' || $itemType == 'folder') {
if (!is_null($uidOwner)) {
$root = \OC\Files\Filesystem::getRoot();
} else {
$root = '';
}
$where = 'INNER JOIN `*PREFIX*filecache` ON `file_source` = `*PREFIX*filecache`.`fileid`';
if (!isset($item)) {
$where .= ' WHERE `file_target` IS NOT NULL';
}
$fileDependent = true;
$queryArgs = array();
} else {
$fileDependent = false;
$root = '';
if ($includeCollections && !isset($item) && ($collectionTypes = self::getCollectionItemTypes($itemType))) {
// If includeCollections is true, find collections of this item type, e.g. a music album contains songs
if (!in_array($itemType, $collectionTypes)) {
$itemTypes = array_merge(array($itemType), $collectionTypes);
} else {
$itemTypes = $collectionTypes;
}
$placeholders = join(',', array_fill(0, count($itemTypes), '?'));
$where = ' WHERE `item_type` IN (' . $placeholders . '))';
$queryArgs = $itemTypes;
} else {
$where = ' WHERE `item_type` = ?';
$queryArgs = array($itemType);
}
}
if (\OC_Appconfig::getValue('core', 'shareapi_allow_links', 'yes') !== 'yes') {
$where .= ' AND `share_type` != ?';
$queryArgs[] = self::SHARE_TYPE_LINK;
}
if (isset($shareType)) {
// Include all user and group items
if ($shareType == self::$shareTypeUserAndGroups && isset($shareWith)) {
$where .= ' AND `share_type` IN (?,?,?)';
$queryArgs[] = self::SHARE_TYPE_USER;
$queryArgs[] = self::SHARE_TYPE_GROUP;
$queryArgs[] = self::$shareTypeGroupUserUnique;
$userAndGroups = array_merge(array($shareWith), \OC_Group::getUserGroups($shareWith));
$placeholders = join(',', array_fill(0, count($userAndGroups), '?'));
$where .= ' AND `share_with` IN (' . $placeholders . ')';
$queryArgs = array_merge($queryArgs, $userAndGroups);
// Don't include own group shares
$where .= ' AND `uid_owner` != ?';
$queryArgs[] = $shareWith;
} else {
$where .= ' AND `share_type` = ?';
$queryArgs[] = $shareType;
if (isset($shareWith)) {
$where .= ' AND `share_with` = ?';
$queryArgs[] = $shareWith;
}
}
}
if (isset($uidOwner)) {
$where .= ' AND `uid_owner` = ?';
$queryArgs[] = $uidOwner;
if (!isset($shareType)) {
// Prevent unique user targets for group shares from being selected
$where .= ' AND `share_type` != ?';
$queryArgs[] = self::$shareTypeGroupUserUnique;
}
if ($itemType == 'file' || $itemType == 'folder') {
$column = 'file_source';
} else {
$column = 'item_source';
}
} else {
if ($itemType == 'file' || $itemType == 'folder') {
$column = 'file_target';
} else {
$column = 'item_target';
}
}
if (isset($item)) {
if ($includeCollections && ($collectionTypes = self::getCollectionItemTypes($itemType))) {
$where .= ' AND (';
} else {
$where .= ' AND';
}
// If looking for own shared items, check item_source else check item_target
if (isset($uidOwner) || $itemShareWithBySource) {
// If item type is a file, file source needs to be checked in case the item was converted
if ($itemType == 'file' || $itemType == 'folder') {
$where .= ' `file_source` = ?';
$column = 'file_source';
} else {
$where .= ' `item_source` = ?';
$column = 'item_source';
}
} else {
if ($itemType == 'file' || $itemType == 'folder') {
$where .= ' `file_target` = ?';
$item = \OC\Files\Filesystem::normalizePath($item);
} else {
$where .= ' `item_target` = ?';
}
}
$queryArgs[] = $item;
if ($includeCollections && $collectionTypes) {
$placeholders = join(',', array_fill(0, count($collectionTypes), '?'));
$where .= ' OR `item_type` IN (' . $placeholders . '))';
$queryArgs = array_merge($queryArgs, $collectionTypes);
}
}
if ($limit != -1 && !$includeCollections) {
if ($shareType == self::$shareTypeUserAndGroups) {
// Make sure the unique user target is returned if it exists,
// unique targets should follow the group share in the database
// If the limit is not 1, the filtering can be done later
$where .= ' ORDER BY `*PREFIX*share`.`id` DESC';
}
// The limit must be at least 3, because filtering needs to be done
if ($limit < 3) {
$queryLimit = 3;
} else {
$queryLimit = $limit;
}
} else {
$queryLimit = null;
}
// TODO Optimize selects
if ($format == self::FORMAT_STATUSES) {
if ($itemType == 'file' || $itemType == 'folder') {
$select = '`*PREFIX*share`.`id`, `item_type`, `item_source`, `*PREFIX*share`.`parent`,' . ' `share_type`, `file_source`, `path`, `expiration`, `storage`, `share_with`, `mail_send`, `uid_owner`';
} else {
$select = '`id`, `item_type`, `item_source`, `parent`, `share_type`, `share_with`, `expiration`, `mail_send`, `uid_owner`';
}
} else {
if (isset($uidOwner)) {
if ($itemType == 'file' || $itemType == 'folder') {
$select = '`*PREFIX*share`.`id`, `item_type`, `item_source`, `*PREFIX*share`.`parent`,' . ' `share_type`, `share_with`, `file_source`, `path`, `permissions`, `stime`,' . ' `expiration`, `token`, `storage`, `mail_send`, `uid_owner`';
} else {
$select = '`id`, `item_type`, `item_source`, `parent`, `share_type`, `share_with`, `permissions`,' . ' `stime`, `file_source`, `expiration`, `token`, `mail_send`, `uid_owner`';
}
} else {
if ($fileDependent) {
if (($itemType == 'file' || $itemType == 'folder') && $format == \OC_Share_Backend_File::FORMAT_GET_FOLDER_CONTENTS || $format == \OC_Share_Backend_File::FORMAT_FILE_APP_ROOT) {
$select = '`*PREFIX*share`.`id`, `item_type`, `item_source`, `*PREFIX*share`.`parent`, `uid_owner`, ' . '`share_type`, `share_with`, `file_source`, `path`, `file_target`, ' . '`permissions`, `expiration`, `storage`, `*PREFIX*filecache`.`parent` as `file_parent`, ' . '`name`, `mtime`, `mimetype`, `mimepart`, `size`, `unencrypted_size`, `encrypted`, `etag`, `mail_send`';
} else {
$select = '`*PREFIX*share`.`id`, `item_type`, `item_source`, `item_target`,
`*PREFIX*share`.`parent`, `share_type`, `share_with`, `uid_owner`,
`file_source`, `path`, `file_target`, `permissions`, `stime`, `expiration`, `token`, `storage`, `mail_send`';
}
} else {
$select = '*';
}
}
}
$root = strlen($root);
$query = \OC_DB::prepare('SELECT ' . $select . ' FROM `*PREFIX*share` ' . $where, $queryLimit);
$result = $query->execute($queryArgs);
if (\OC_DB::isError($result)) {
\OC_Log::write('OCP\\Share', \OC_DB::getErrorMessage($result) . ', select=' . $select . ' where=' . $where, \OC_Log::ERROR);
}
$items = array();
$targets = array();
$switchedItems = array();
$mounts = array();
while ($row = $result->fetchRow()) {
if (isset($row['id'])) {
$row['id'] = (int) $row['id'];
}
if (isset($row['share_type'])) {
$row['share_type'] = (int) $row['share_type'];
}
if (isset($row['parent'])) {
$row['parent'] = (int) $row['parent'];
}
if (isset($row['file_parent'])) {
$row['file_parent'] = (int) $row['file_parent'];
}
if (isset($row['file_source'])) {
$row['file_source'] = (int) $row['file_source'];
}
if (isset($row['permissions'])) {
$row['permissions'] = (int) $row['permissions'];
}
if (isset($row['storage'])) {
$row['storage'] = (int) $row['storage'];
}
if (isset($row['stime'])) {
$row['stime'] = (int) $row['stime'];
}
// Filter out duplicate group shares for users with unique targets
if ($row['share_type'] == self::$shareTypeGroupUserUnique && isset($items[$row['parent']])) {
$row['share_type'] = self::SHARE_TYPE_GROUP;
$row['share_with'] = $items[$row['parent']]['share_with'];
// Remove the parent group share
unset($items[$row['parent']]);
if ($row['permissions'] == 0) {
continue;
}
} else {
if (!isset($uidOwner)) {
// Check if the same target already exists
if (isset($targets[$row[$column]])) {
// Check if the same owner shared with the user twice
// through a group and user share - this is allowed
$id = $targets[$row[$column]];
if (isset($items[$id]) && $items[$id]['uid_owner'] == $row['uid_owner']) {
// Switch to group share type to ensure resharing conditions aren't bypassed
if ($items[$id]['share_type'] != self::SHARE_TYPE_GROUP) {
$items[$id]['share_type'] = self::SHARE_TYPE_GROUP;
$items[$id]['share_with'] = $row['share_with'];
}
// Switch ids if sharing permission is granted on only
// one share to ensure correct parent is used if resharing
if (~(int) $items[$id]['permissions'] & PERMISSION_SHARE && (int) $row['permissions'] & PERMISSION_SHARE) {
$items[$row['id']] = $items[$id];
$switchedItems[$id] = $row['id'];
unset($items[$id]);
$id = $row['id'];
}
// Combine the permissions for the item
$items[$id]['permissions'] |= (int) $row['permissions'];
continue;
}
} else {
$targets[$row[$column]] = $row['id'];
}
}
}
// Remove root from file source paths if retrieving own shared items
if (isset($uidOwner) && isset($row['path'])) {
if (isset($row['parent'])) {
// FIXME: Doesn't always construct the correct path, example:
// Folder '/a/b', share '/a' and '/a/b' to user2
// user2 reshares /Shared/b and ask for share status of /Shared/a/b
// expected result: path=/Shared/a/b; actual result /Shared/b because of the parent
$query = \OC_DB::prepare('SELECT `file_target` FROM `*PREFIX*share` WHERE `id` = ?');
$parentResult = $query->execute(array($row['parent']));
if (\OC_DB::isError($result)) {
\OC_Log::write('OCP\\Share', 'Can\'t select parent: ' . \OC_DB::getErrorMessage($result) . ', select=' . $select . ' where=' . $where, \OC_Log::ERROR);
} else {
$parentRow = $parentResult->fetchRow();
$tmpPath = '/Shared' . $parentRow['file_target'];
// find the right position where the row path continues from the target path
$pos = strrpos($row['path'], $parentRow['file_target']);
$subPath = substr($row['path'], $pos);
$splitPath = explode('/', $subPath);
foreach (array_slice($splitPath, 2) as $pathPart) {
$tmpPath = $tmpPath . '/' . $pathPart;
}
$row['path'] = $tmpPath;
}
} else {
if (!isset($mounts[$row['storage']])) {
$mountPoints = \OC\Files\Filesystem::getMountByNumericId($row['storage']);
if (is_array($mountPoints)) {
$mounts[$row['storage']] = current($mountPoints);
}
}
if ($mounts[$row['storage']]) {
$path = $mounts[$row['storage']]->getMountPoint() . $row['path'];
$row['path'] = substr($path, $root);
}
}
}
if ($checkExpireDate) {
if (self::expireItem($row)) {
continue;
}
}
// Check if resharing is allowed, if not remove share permission
if (isset($row['permissions']) && !self::isResharingAllowed()) {
$row['permissions'] &= ~PERMISSION_SHARE;
}
// Add display names to result
if (isset($row['share_with']) && $row['share_with'] != '') {
$row['share_with_displayname'] = \OCP\User::getDisplayName($row['share_with']);
}
if (isset($row['uid_owner']) && $row['uid_owner'] != '') {
$row['displayname_owner'] = \OCP\User::getDisplayName($row['uid_owner']);
}
$items[$row['id']] = $row;
}
if (!empty($items)) {
$collectionItems = array();
foreach ($items as &$row) {
// Return only the item instead of a 2-dimensional array
if ($limit == 1 && $row[$column] == $item && ($row['item_type'] == $itemType || $itemType == 'file')) {
if ($format == self::FORMAT_NONE) {
return $row;
} else {
break;
}
}
// Check if this is a collection of the requested item type
if ($includeCollections && $collectionTypes && in_array($row['item_type'], $collectionTypes)) {
if (($collectionBackend = self::getBackend($row['item_type'])) && $collectionBackend instanceof Share_Backend_Collection) {
// Collections can be inside collections, check if the item is a collection
if (isset($item) && $row['item_type'] == $itemType && $row[$column] == $item) {
$collectionItems[] = $row;
} else {
$collection = array();
$collection['item_type'] = $row['item_type'];
if ($row['item_type'] == 'file' || $row['item_type'] == 'folder') {
$collection['path'] = basename($row['path']);
}
$row['collection'] = $collection;
// Fetch all of the children sources
$children = $collectionBackend->getChildren($row[$column]);
foreach ($children as $child) {
$childItem = $row;
$childItem['item_type'] = $itemType;
if ($row['item_type'] != 'file' && $row['item_type'] != 'folder') {
$childItem['item_source'] = $child['source'];
$childItem['item_target'] = $child['target'];
}
if ($backend instanceof Share_Backend_File_Dependent) {
if ($row['item_type'] == 'file' || $row['item_type'] == 'folder') {
$childItem['file_source'] = $child['source'];
} else {
$meta = \OC\Files\Filesystem::getFileInfo($child['file_path']);
$childItem['file_source'] = $meta['fileid'];
}
$childItem['file_target'] = \OC\Files\Filesystem::normalizePath($child['file_path']);
}
if (isset($item)) {
if ($childItem[$column] == $item) {
// Return only the item instead of a 2-dimensional array
if ($limit == 1) {
if ($format == self::FORMAT_NONE) {
return $childItem;
} else {
// Unset the items array and break out of both loops
$items = array();
$items[] = $childItem;
break 2;
}
} else {
$collectionItems[] = $childItem;
}
}
} else {
$collectionItems[] = $childItem;
}
}
}
}
// Remove collection item
$toRemove = $row['id'];
if (array_key_exists($toRemove, $switchedItems)) {
$toRemove = $switchedItems[$toRemove];
}
unset($items[$toRemove]);
}
}
if (!empty($collectionItems)) {
$items = array_merge($items, $collectionItems);
}
if (empty($items) && $limit == 1) {
return false;
}
if ($format == self::FORMAT_NONE) {
return $items;
} else {
if ($format == self::FORMAT_STATUSES) {
$statuses = array();
foreach ($items as $item) {
if ($item['share_type'] == self::SHARE_TYPE_LINK) {
$statuses[$item[$column]]['link'] = true;
} else {
if (!isset($statuses[$item[$column]])) {
$statuses[$item[$column]]['link'] = false;
}
}
if ($itemType == 'file' || $itemType == 'folder') {
$statuses[$item[$column]]['path'] = $item['path'];
}
}
return $statuses;
} else {
return $backend->formatItems($items, $format, $parameters);
}
}
} else {
if ($limit == 1 || isset($uidOwner) && isset($item)) {
return false;
}
}
return array();
}
