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/**
* @copyright 2022 Louis Chemineau <mlouis@chmn.me>
*
* @author Louis Chemineau <mlouis@chmn.me>
*
* @license AGPL-3.0-or-later
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import { getCurrentUser } from '@nextcloud/auth'
import { joinPaths } from '@nextcloud/paths'
import { generateRemoteUrl, generateUrl } from '@nextcloud/router'
import moment from '@nextcloud/moment'
import { encodeFilePath } from '../../../files/src/utils/fileUtils.ts'
import client from '../utils/davClient.js'
import davRequest from '../utils/davRequest.js'
import logger from '../utils/logger.js'
/**
* @typedef {object} Version
* @property {string} fileId - The id of the file associated to the version.
* @property {string} label - 'Current version' or ''
* @property {string} filename - File name relative to the version DAV endpoint
* @property {string} basename - A base name generated from the mtime
* @property {string} mime - Empty for the current version, else the actual mime type of the version
* @property {string} etag - Empty for the current version, else the actual mime type of the version
* @property {string} size - Human readable size
* @property {string} type - 'file'
* @property {number} mtime - Version creation date as a timestamp
* @property {string} permissions - Only readable: 'R'
* @property {boolean} hasPreview - Whether the version has a preview
* @property {string} previewUrl - Preview URL of the version
* @property {string} url - Download URL of the version
* @property {string} source - The WebDAV endpoint of the ressource
* @property {string|null} fileVersion - The version id, null for the current version
*/
/**
* @param fileInfo
* @return {Promise<Version[]>}
*/
export async function fetchVersions(fileInfo) {
const path = `/versions/${getCurrentUser()?.uid}/versions/${fileInfo.id}`
try {
/** @type {import('webdav').ResponseDataDetailed<import('webdav').FileStat[]>} */
const response = await client.getDirectoryContents(path, {
data: davRequest,
details: true,
})
return response.data
// Filter out root
.filter(({ mime }) => mime !== '')
.map(version => formatVersion(version, fileInfo))
} catch (exception) {
logger.error('Could not fetch version', { exception })
throw exception
}
}
/**
* Restore the given version
*
* @param {Version} version
*/
export async function restoreVersion(version) {
try {
logger.debug('Restoring version', { url: version.url })
await client.moveFile(
`/versions/${getCurrentUser()?.uid}/versions/${version.fileId}/${version.fileVersion}`,
`/versions/${getCurrentUser()?.uid}/restore/target`,
)
} catch (exception) {
logger.error('Could not restore version', { exception })
throw exception
}
}
/**
* Format version
*
* @param {object} version - raw version received from the versions DAV endpoint
* @param {object} fileInfo - file properties received from the files DAV endpoint
* @return {Version}
*/
function formatVersion(version, fileInfo) {
const mtime = moment(version.lastmod).unix() * 1000
let previewUrl = ''
if (mtime === fileInfo.mtime) { // Version is the current one
previewUrl = generateUrl('/core/preview?fileId={fileId}&c={fileEtag}&x=250&y=250&forceIcon=0&a=0', {
fileId: fileInfo.id,
fileEtag: fileInfo.etag,
})
} else {
previewUrl = generateUrl('/apps/files_versions/preview?file={file}&version={fileVersion}', {
file: joinPaths(fileInfo.path, fileInfo.name),
fileVersion: version.basename,
})
}
return {
fileId: fileInfo.id,
label: version.props['version-label'],
filename: version.filename,
basename: moment(mtime).format('LLL'),
mime: version.mime,
etag: `${version.props.getetag}`,
size: version.size,
type: version.type,
mtime,
permissions: 'R',
hasPreview: version.props['has-preview'] === 1,
previewUrl,
url: joinPaths('/remote.php/dav', version.filename),
source: generateRemoteUrl('dav') + encodeFilePath(version.filename),
fileVersion: version.basename,
}
}
/**
* @param {Version} version
* @param {string} newLabel
*/
export async function setVersionLabel(version, newLabel) {
return await client.customRequest(
version.filename,
{
method: 'PROPPATCH',
data: `<?xml version="1.0"?>
<d:propertyupdate xmlns:d="DAV:"
xmlns:oc="http://owncloud.org/ns"
xmlns:nc="http://nextcloud.org/ns"
xmlns:ocs="http://open-collaboration-services.org/ns">
<d:set>
<d:prop>
<nc:version-label>${newLabel}</nc:version-label>
</d:prop>
</d:set>
</d:propertyupdate>`,
},
)
}
/**
* @param {Version} version
*/
export async function deleteVersion(version) {
await client.deleteFile(version.filename)
}
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