%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
* SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\Files\Storage\Wrapper;
use OCP\Cache\CappedMemoryCache;
use OCP\Files\Storage\IStorage;
use Psr\Clock\ClockInterface;
/**
* Wrapper that overwrites the mtime return by stat/getMetaData if the returned value
* is lower than when we last modified the file.
*
* This is useful because some storage servers can return an outdated mtime right after writes
*/
class KnownMtime extends Wrapper {
private CappedMemoryCache $knowMtimes;
private ClockInterface $clock;
public function __construct($arguments) {
parent::__construct($arguments);
$this->knowMtimes = new CappedMemoryCache();
$this->clock = $arguments['clock'];
}
public function file_put_contents($path, $data) {
$result = parent::file_put_contents($path, $data);
if ($result) {
$now = $this->clock->now()->getTimestamp();
$this->knowMtimes->set($path, $this->clock->now()->getTimestamp());
}
return $result;
}
public function stat($path) {
$stat = parent::stat($path);
if ($stat) {
$this->applyKnownMtime($path, $stat);
}
return $stat;
}
public function getMetaData($path) {
$stat = parent::getMetaData($path);
if ($stat) {
$this->applyKnownMtime($path, $stat);
}
return $stat;
}
private function applyKnownMtime(string $path, array &$stat) {
if (isset($stat['mtime'])) {
$knownMtime = $this->knowMtimes->get($path) ?? 0;
$stat['mtime'] = max($stat['mtime'], $knownMtime);
}
}
public function filemtime($path) {
$knownMtime = $this->knowMtimes->get($path) ?? 0;
return max(parent::filemtime($path), $knownMtime);
}
public function mkdir($path) {
$result = parent::mkdir($path);
if ($result) {
$this->knowMtimes->set($path, $this->clock->now()->getTimestamp());
}
return $result;
}
public function rmdir($path) {
$result = parent::rmdir($path);
if ($result) {
$this->knowMtimes->set($path, $this->clock->now()->getTimestamp());
}
return $result;
}
public function unlink($path) {
$result = parent::unlink($path);
if ($result) {
$this->knowMtimes->set($path, $this->clock->now()->getTimestamp());
}
return $result;
}
public function rename($source, $target) {
$result = parent::rename($source, $target);
if ($result) {
$this->knowMtimes->set($target, $this->clock->now()->getTimestamp());
$this->knowMtimes->set($source, $this->clock->now()->getTimestamp());
}
return $result;
}
public function copy($source, $target) {
$result = parent::copy($source, $target);
if ($result) {
$this->knowMtimes->set($target, $this->clock->now()->getTimestamp());
}
return $result;
}
public function fopen($path, $mode) {
$result = parent::fopen($path, $mode);
if ($result && $mode === 'w') {
$this->knowMtimes->set($path, $this->clock->now()->getTimestamp());
}
return $result;
}
public function touch($path, $mtime = null) {
$result = parent::touch($path, $mtime);
if ($result) {
$this->knowMtimes->set($path, $mtime ?? $this->clock->now()->getTimestamp());
}
return $result;
}
public function copyFromStorage(IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
$result = parent::copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
if ($result) {
$this->knowMtimes->set($targetInternalPath, $this->clock->now()->getTimestamp());
}
return $result;
}
public function moveFromStorage(IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
$result = parent::moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
if ($result) {
$this->knowMtimes->set($targetInternalPath, $this->clock->now()->getTimestamp());
}
return $result;
}
public function writeStream(string $path, $stream, ?int $size = null): int {
$result = parent::writeStream($path, $stream, $size);
if ($result) {
$this->knowMtimes->set($path, $this->clock->now()->getTimestamp());
}
return $result;
}
}
Zerion Mini Shell 1.0