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<?php
/**
* Copyright (c) 2012 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\Files\Cache;
class Permissions {
/**
* @var string $storageId
*/
private $storageId;
/**
* @param \OC\Files\Storage\Storage|string $storage
*/
public function __construct($storage) {
if ($storage instanceof \OC\Files\Storage\Storage) {
$this->storageId = $storage->getId();
} else {
$this->storageId = $storage;
}
}
/**
* get the permissions for a single file
*
* @param int $fileId
* @param string $user
* @return int (-1 if file no permissions set)
*/
public function get($fileId, $user) {
$sql = 'SELECT `permissions` FROM `*PREFIX*permissions` WHERE `user` = ? AND `fileid` = ?';
$result = \OC_DB::executeAudited($sql, array($user, $fileId));
if ($row = $result->fetchRow()) {
return $row['permissions'];
} else {
return -1;
}
}
/**
* set the permissions of a file
*
* @param int $fileId
* @param string $user
* @param int $permissions
*/
public function set($fileId, $user, $permissions) {
if (self::get($fileId, $user) !== -1) {
$sql = 'UPDATE `*PREFIX*permissions` SET `permissions` = ? WHERE `user` = ? AND `fileid` = ?';
} else {
$sql = 'INSERT INTO `*PREFIX*permissions`(`permissions`, `user`, `fileid`) VALUES(?, ?,? )';
}
\OC_DB::executeAudited($sql, array($permissions, $user, $fileId));
}
/**
* get the permissions of multiply files
*
* @param int[] $fileIds
* @param string $user
* @return int[]
*/
public function getMultiple($fileIds, $user) {
if (count($fileIds) === 0) {
return array();
}
$params = $fileIds;
$params[] = $user;
$inPart = implode(', ', array_fill(0, count($fileIds), '?'));
$sql = 'SELECT `fileid`, `permissions` FROM `*PREFIX*permissions`'
. ' WHERE `fileid` IN (' . $inPart . ') AND `user` = ?';
$result = \OC_DB::executeAudited($sql, $params);
$filePermissions = array();
while ($row = $result->fetchRow()) {
$filePermissions[$row['fileid']] = $row['permissions'];
}
return $filePermissions;
}
/**
* get the permissions for all files in a folder
*
* @param int $parentId
* @param string $user
* @return int[]
*/
public function getDirectoryPermissions($parentId, $user) {
$sql = 'SELECT `*PREFIX*permissions`.`fileid`, `permissions`
FROM `*PREFIX*permissions`
INNER JOIN `*PREFIX*filecache` ON `*PREFIX*permissions`.`fileid` = `*PREFIX*filecache`.`fileid`
WHERE `*PREFIX*filecache`.`parent` = ? AND `*PREFIX*permissions`.`user` = ?';
$result = \OC_DB::executeAudited($sql, array($parentId, $user));
$filePermissions = array();
while ($row = $result->fetchRow()) {
$filePermissions[$row['fileid']] = $row['permissions'];
}
return $filePermissions;
}
/**
* remove the permissions for a file
*
* @param int $fileId
* @param string $user
*/
public function remove($fileId, $user = null) {
if (is_null($user)) {
\OC_DB::executeAudited('DELETE FROM `*PREFIX*permissions` WHERE `fileid` = ?', array($fileId));
} else {
$sql = 'DELETE FROM `*PREFIX*permissions` WHERE `fileid` = ? AND `user` = ?';
\OC_DB::executeAudited($sql, array($fileId, $user));
}
}
public function removeMultiple($fileIds, $user) {
$query = \OC_DB::prepare('DELETE FROM `*PREFIX*permissions` WHERE `fileid` = ? AND `user` = ?');
foreach ($fileIds as $fileId) {
\OC_DB::executeAudited($query, array($fileId, $user));
}
}
/**
* get the list of users which have permissions stored for a file
*
* @param int $fileId
*/
public function getUsers($fileId) {
$sql = 'SELECT `user` FROM `*PREFIX*permissions` WHERE `fileid` = ?';
$result = \OC_DB::executeAudited($sql, array($fileId));
$users = array();
while ($row = $result->fetchRow()) {
$users[] = $row['user'];
}
return $users;
}
}
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