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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
* SPDX-License-Identifier: AGPL-3.0-only
*/
namespace OC\Files\Mount;
use OC\Files\Filesystem;
use OC\Files\SetupManager;
use OC\Files\SetupManagerFactory;
use OCP\Cache\CappedMemoryCache;
use OCP\Files\Config\ICachedMountInfo;
use OCP\Files\Mount\IMountManager;
use OCP\Files\Mount\IMountPoint;
use OCP\Files\NotFoundException;
class Manager implements IMountManager {
/** @var MountPoint[] */
private array $mounts = [];
/** @var CappedMemoryCache<IMountPoint> */
private CappedMemoryCache $pathCache;
/** @var CappedMemoryCache<IMountPoint[]> */
private CappedMemoryCache $inPathCache;
private SetupManager $setupManager;
public function __construct(SetupManagerFactory $setupManagerFactory) {
$this->pathCache = new CappedMemoryCache();
$this->inPathCache = new CappedMemoryCache();
$this->setupManager = $setupManagerFactory->create($this);
}
/**
* @param IMountPoint $mount
*/
public function addMount(IMountPoint $mount) {
$this->mounts[$mount->getMountPoint()] = $mount;
$this->pathCache->clear();
$this->inPathCache->clear();
}
/**
* @param string $mountPoint
*/
public function removeMount(string $mountPoint) {
$mountPoint = Filesystem::normalizePath($mountPoint);
if (\strlen($mountPoint) > 1) {
$mountPoint .= '/';
}
unset($this->mounts[$mountPoint]);
$this->pathCache->clear();
$this->inPathCache->clear();
}
/**
* @param string $mountPoint
* @param string $target
*/
public function moveMount(string $mountPoint, string $target) {
$this->mounts[$target] = $this->mounts[$mountPoint];
unset($this->mounts[$mountPoint]);
$this->pathCache->clear();
$this->inPathCache->clear();
}
/**
* Find the mount for $path
*
* @param string $path
* @return IMountPoint
*/
public function find(string $path): IMountPoint {
$this->setupManager->setupForPath($path);
$path = Filesystem::normalizePath($path);
if (isset($this->pathCache[$path])) {
return $this->pathCache[$path];
}
if (count($this->mounts) === 0) {
$this->setupManager->setupRoot();
if (count($this->mounts) === 0) {
throw new \Exception("No mounts even after explicitly setting up the root mounts");
}
}
$current = $path;
while (true) {
$mountPoint = $current . '/';
if (isset($this->mounts[$mountPoint])) {
$this->pathCache[$path] = $this->mounts[$mountPoint];
return $this->mounts[$mountPoint];
} elseif ($current === '') {
break;
}
$current = dirname($current);
if ($current === '.' || $current === '/') {
$current = '';
}
}
throw new NotFoundException("No mount for path " . $path . " existing mounts (" . count($this->mounts) ."): " . implode(",", array_keys($this->mounts)));
}
/**
* Find all mounts in $path
*
* @param string $path
* @return IMountPoint[]
*/
public function findIn(string $path): array {
$this->setupManager->setupForPath($path, true);
$path = $this->formatPath($path);
if (isset($this->inPathCache[$path])) {
return $this->inPathCache[$path];
}
$result = [];
$pathLength = \strlen($path);
$mountPoints = array_keys($this->mounts);
foreach ($mountPoints as $mountPoint) {
if (substr($mountPoint, 0, $pathLength) === $path && \strlen($mountPoint) > $pathLength) {
$result[] = $this->mounts[$mountPoint];
}
}
$this->inPathCache[$path] = $result;
return $result;
}
public function clear() {
$this->mounts = [];
$this->pathCache->clear();
$this->inPathCache->clear();
}
/**
* Find mounts by storage id
*
* @param string $id
* @return IMountPoint[]
*/
public function findByStorageId(string $id): array {
if (\strlen($id) > 64) {
$id = md5($id);
}
$result = [];
foreach ($this->mounts as $mount) {
if ($mount->getStorageId() === $id) {
$result[] = $mount;
}
}
return $result;
}
/**
* @return IMountPoint[]
*/
public function getAll(): array {
return $this->mounts;
}
/**
* Find mounts by numeric storage id
*
* @param int $id
* @return IMountPoint[]
*/
public function findByNumericId(int $id): array {
$result = [];
foreach ($this->mounts as $mount) {
if ($mount->getNumericStorageId() === $id) {
$result[] = $mount;
}
}
return $result;
}
/**
* @param string $path
* @return string
*/
private function formatPath(string $path): string {
$path = Filesystem::normalizePath($path);
if (\strlen($path) > 1) {
$path .= '/';
}
return $path;
}
public function getSetupManager(): SetupManager {
return $this->setupManager;
}
/**
* Return all mounts in a path from a specific mount provider
*
* @param string $path
* @param string[] $mountProviders
* @return MountPoint[]
*/
public function getMountsByMountProvider(string $path, array $mountProviders) {
$this->getSetupManager()->setupForProvider($path, $mountProviders);
if (in_array('', $mountProviders)) {
return $this->mounts;
} else {
return array_filter($this->mounts, function ($mount) use ($mountProviders) {
return in_array($mount->getMountProvider(), $mountProviders);
});
}
}
/**
* Return the mount matching a cached mount info (or mount file info)
*
* @param ICachedMountInfo $info
*
* @return IMountPoint|null
*/
public function getMountFromMountInfo(ICachedMountInfo $info): ?IMountPoint {
$this->setupManager->setupForPath($info->getMountPoint());
foreach ($this->mounts as $mount) {
if ($mount->getMountPoint() === $info->getMountPoint()) {
return $mount;
}
}
return null;
}
}
|
