105 lines
3.1 KiB
PHP
105 lines
3.1 KiB
PHP
<?php
|
|
/**
|
|
* Copyright (c) 2013 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;
|
|
|
|
use \OC\Files\Mount;
|
|
use \OC\Files\Filesystem;
|
|
|
|
class BackgroundWatcher {
|
|
static $folderMimetype = null;
|
|
|
|
static private function getFolderMimetype() {
|
|
if (!is_null(self::$folderMimetype)) {
|
|
return self::$folderMimetype;
|
|
}
|
|
$sql = 'SELECT `id` FROM `*PREFIX*mimetypes` WHERE `mimetype` = ?';
|
|
$result = \OC_DB::executeAudited($sql, array('httpd/unix-directory'));
|
|
$row = $result->fetchRow();
|
|
return $row['id'];
|
|
}
|
|
|
|
static private function checkUpdate($id) {
|
|
$cacheItem = Cache::getById($id);
|
|
if (is_null($cacheItem)) {
|
|
return;
|
|
}
|
|
list($storageId, $internalPath) = $cacheItem;
|
|
$mounts = Filesystem::getMountByStorageId($storageId);
|
|
|
|
if (count($mounts) === 0) {
|
|
//if the storage we need isn't mounted on default, try to find a user that has access to the storage
|
|
$permissionsCache = new Permissions($storageId);
|
|
$users = $permissionsCache->getUsers($id);
|
|
if (count($users) === 0) {
|
|
return;
|
|
}
|
|
Filesystem::initMountPoints($users[0]);
|
|
$mounts = Filesystem::getMountByStorageId($storageId);
|
|
if (count($mounts) === 0) {
|
|
return;
|
|
}
|
|
}
|
|
$storage = $mounts[0]->getStorage();
|
|
$watcher = new Watcher($storage);
|
|
$watcher->checkUpdate($internalPath);
|
|
}
|
|
|
|
/**
|
|
* get the next fileid in the cache
|
|
*
|
|
* @param int $previous
|
|
* @param bool $folder
|
|
* @return int
|
|
*/
|
|
static private function getNextFileId($previous, $folder) {
|
|
if ($folder) {
|
|
$stmt = \OC_DB::prepare('SELECT `fileid` FROM `*PREFIX*filecache` WHERE `fileid` > ? AND `mimetype` = ? ORDER BY `fileid` ASC', 1);
|
|
} else {
|
|
$stmt = \OC_DB::prepare('SELECT `fileid` FROM `*PREFIX*filecache` WHERE `fileid` > ? AND `mimetype` != ? ORDER BY `fileid` ASC', 1);
|
|
}
|
|
$result = \OC_DB::executeAudited($stmt, array($previous,self::getFolderMimetype()));
|
|
if ($row = $result->fetchRow()) {
|
|
return $row['fileid'];
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static public function checkNext() {
|
|
// check both 1 file and 1 folder, this way new files are detected quicker because there are less folders than files usually
|
|
$previousFile = \OC_Appconfig::getValue('files', 'backgroundwatcher_previous_file', 0);
|
|
$previousFolder = \OC_Appconfig::getValue('files', 'backgroundwatcher_previous_folder', 0);
|
|
$nextFile = self::getNextFileId($previousFile, false);
|
|
$nextFolder = self::getNextFileId($previousFolder, true);
|
|
\OC_Appconfig::setValue('files', 'backgroundwatcher_previous_file', $nextFile);
|
|
\OC_Appconfig::setValue('files', 'backgroundwatcher_previous_folder', $nextFolder);
|
|
if ($nextFile > 0) {
|
|
self::checkUpdate($nextFile);
|
|
}
|
|
if ($nextFolder > 0) {
|
|
self::checkUpdate($nextFolder);
|
|
}
|
|
}
|
|
|
|
static public function checkAll() {
|
|
$previous = 0;
|
|
$next = 1;
|
|
while ($next != 0) {
|
|
$next = self::getNextFileId($previous, true);
|
|
self::checkUpdate($next);
|
|
}
|
|
$previous = 0;
|
|
$next = 1;
|
|
while ($next != 0) {
|
|
$next = self::getNextFileId($previous, false);
|
|
self::checkUpdate($next);
|
|
}
|
|
}
|
|
}
|