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79 lines
1.9 KiB
PHP
79 lines
1.9 KiB
PHP
<?php
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/**
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* SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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namespace OCP\Files;
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use OCP\Constants;
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use OCP\Files\Mount\IMovableMount;
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/**
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* This class provides different helper functions related to WebDAV protocol
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*
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* @since 25.0.0
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*/
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class DavUtil {
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/**
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* Compute the fileId to use for dav responses
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*
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* @param int $id Id of the file returned by FileInfo::getId
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* @since 25.0.0
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*/
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public static function getDavFileId(int $id): string {
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$instanceId = \OC_Util::getInstanceId();
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$id = sprintf('%08d', $id);
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return $id . $instanceId;
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}
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/**
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* Compute the format needed for returning permissions for dav
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*
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* @since 25.0.0
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*/
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public static function getDavPermissions(FileInfo $info): string {
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$permissions = $info->getPermissions();
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$p = '';
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if ($info->isShared()) {
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$p .= 'S';
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}
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if ($permissions & Constants::PERMISSION_SHARE) {
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$p .= 'R';
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}
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if ($info->isMounted()) {
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$p .= 'M';
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}
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if ($permissions & Constants::PERMISSION_READ) {
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$p .= 'G';
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}
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if ($permissions & Constants::PERMISSION_DELETE) {
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$p .= 'D';
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}
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if ($permissions & Constants::PERMISSION_UPDATE) {
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$p .= 'NV'; // Renameable, Movable
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}
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// since we always add update permissions for the root of movable mounts
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// we need to check the shared cache item directly to determine if it's writable
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$storage = $info->getStorage();
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if ($info->getInternalPath() === '' && $info->getMountPoint() instanceof IMovableMount) {
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$rootEntry = $storage->getCache()->get('');
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$isWritable = $rootEntry->getPermissions() & Constants::PERMISSION_UPDATE;
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} else {
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$isWritable = $permissions & Constants::PERMISSION_UPDATE;
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}
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if ($info->getType() === FileInfo::TYPE_FILE) {
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if ($isWritable) {
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$p .= 'W';
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}
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} else {
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if ($permissions & Constants::PERMISSION_CREATE) {
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$p .= 'CK';
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}
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}
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return $p;
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}
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}
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