storage !== null) {
return $this->storage;
}
$session = Server::get(IUserSession::class);
if ($session->isLoggedIn()) {
$rootView = new View();
$userId = $session->getUser()->getUID();
Filesystem::initMountPoints($userId);
if (!$rootView->file_exists('/' . $userId . '/cache')) {
$rootView->mkdir('/' . $userId . '/cache');
}
$this->storage = new View('/' . $userId . '/cache');
return $this->storage;
} else {
Server::get(LoggerInterface::class)->error('Can\'t get cache storage, user not logged in', ['app' => 'core']);
throw new \OC\ForbiddenException('Can\t get cache storage, user not logged in');
}
}
/**
* @param string $key
* @return mixed|null
* @throws \OC\ForbiddenException
*/
public function get($key) {
$result = null;
if ($this->hasKey($key)) {
$storage = $this->getStorage();
$result = $storage->file_get_contents($key);
}
return $result;
}
/**
* Returns the size of the stored/cached data
*
* @param string $key
* @return int
*/
public function size($key) {
$result = 0;
if ($this->hasKey($key)) {
$storage = $this->getStorage();
$result = $storage->filesize($key);
}
return $result;
}
/**
* @param string $key
* @param mixed $value
* @param int $ttl
* @return bool|mixed
* @throws \OC\ForbiddenException
*/
public function set($key, $value, $ttl = 0) {
$storage = $this->getStorage();
$result = false;
// unique id to avoid chunk collision, just in case
$uniqueId = Server::get(ISecureRandom::class)->generate(
16,
ISecureRandom::CHAR_ALPHANUMERIC
);
// use part file to prevent hasKey() to find the key
// while it is being written
$keyPart = $key . '.' . $uniqueId . '.part';
if ($storage && $storage->file_put_contents($keyPart, $value)) {
if ($ttl === 0) {
$ttl = 86400; // 60*60*24
}
$result = $storage->touch($keyPart, time() + $ttl);
$result &= $storage->rename($keyPart, $key);
}
return $result;
}
/**
* @param string $key
* @return bool
* @throws \OC\ForbiddenException
*/
public function hasKey($key) {
$storage = $this->getStorage();
if ($storage && $storage->is_file($key) && $storage->isReadable($key)) {
return true;
}
return false;
}
/**
* @param string $key
* @return bool|mixed
* @throws \OC\ForbiddenException
*/
public function remove($key) {
$storage = $this->getStorage();
if (!$storage) {
return false;
}
return $storage->unlink($key);
}
/**
* @param string $prefix
* @return bool
* @throws \OC\ForbiddenException
*/
public function clear($prefix = '') {
$storage = $this->getStorage();
if ($storage && $storage->is_dir('/')) {
$dh = $storage->opendir('/');
if (is_resource($dh)) {
while (($file = readdir($dh)) !== false) {
if ($file !== '.' && $file !== '..' && ($prefix === '' || str_starts_with($file, $prefix))) {
$storage->unlink('/' . $file);
}
}
}
}
return true;
}
/**
* Runs GC
* @throws \OC\ForbiddenException
*/
public function gc() {
$storage = $this->getStorage();
if ($storage) {
// extra hour safety, in case of stray part chunks that take longer to write,
// because touch() is only called after the chunk was finished
$now = time() - 3600;
$dh = $storage->opendir('/');
if (!is_resource($dh)) {
return null;
}
while (($file = readdir($dh)) !== false) {
if ($file !== '.' && $file !== '..') {
try {
$mtime = $storage->filemtime('/' . $file);
if ($mtime < $now) {
$storage->unlink('/' . $file);
}
} catch (\OCP\Lock\LockedException $e) {
// ignore locked chunks
Server::get(LoggerInterface::class)->debug('Could not cleanup locked chunk "' . $file . '"', ['app' => 'core']);
} catch (\OCP\Files\ForbiddenException $e) {
Server::get(LoggerInterface::class)->debug('Could not cleanup forbidden chunk "' . $file . '"', ['app' => 'core']);
} catch (\OCP\Files\LockNotAcquiredException $e) {
Server::get(LoggerInterface::class)->debug('Could not cleanup locked chunk "' . $file . '"', ['app' => 'core']);
}
}
}
}
}
public static function isAvailable(): bool {
return true;
}
}
eat/add_retry_support_to_query_builder'>artonge/feat/add_retry_support_to_query_builder
Nextcloud server, a safe home for all your data: https://github.com/nextcloud/server | www-data |
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