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/**
* @copyright Copyright (c) 2023 Ferdinand Thiessen <opensource@fthiessen.de>
*
* @author Ferdinand Thiessen <opensource@fthiessen.de>
*
* @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 type { Upload } from '@nextcloud/upload'
import type { FileStat, ResponseDataDetailed } from 'webdav'
import { davGetClient, davGetDefaultPropfind, davResultToNode, davRootPath } from '@nextcloud/files'
import { emit } from '@nextcloud/event-bus'
import { getUploader } from '@nextcloud/upload'
import { joinPaths } from '@nextcloud/paths'
import { showError } from '@nextcloud/dialogs'
import { translate as t } from '@nextcloud/l10n'
import logger from '../logger.js'
export const handleDrop = async (data: DataTransfer) => {
// TODO: Maybe handle `getAsFileSystemHandle()` in the future
const uploads = [] as Upload[]
for (const item of data.items) {
if (item.kind !== 'file') {
logger.debug('Skipping dropped item', { kind: item.kind, type: item.type })
continue
}
// MDN recommends to try both, as it might be renamed in the future
const entry = (item as unknown as { getAsEntry?: () => FileSystemEntry|undefined})?.getAsEntry?.() ?? item.webkitGetAsEntry()
// Handle browser issues if Filesystem API is not available. Fallback to File API
if (entry === null) {
logger.debug('Could not get FilesystemEntry of item, falling back to file')
const file = item.getAsFile()
if (file === null) {
logger.warn('Could not process DataTransferItem', { type: item.type, kind: item.kind })
showError(t('files', 'One of the dropped files could not be processed'))
} else {
uploads.push(await handleFileUpload(file))
}
} else {
logger.debug('Handle recursive upload', { entry: entry.name })
// Use Filesystem API
uploads.push(...await handleRecursiveUpload(entry))
}
}
return uploads
}
const handleFileUpload = async (file: File, path: string = '') => {
const uploader = getUploader()
try {
return await uploader.upload(`${path}${file.name}`, file)
} catch (e) {
showError(t('files', 'Uploading "{filename}" failed', { filename: file.name }))
throw e
}
}
const handleRecursiveUpload = async (entry: FileSystemEntry, path: string = ''): Promise<Upload[]> => {
if (entry.isFile) {
return [
await new Promise<Upload>((resolve, reject) => {
(entry as FileSystemFileEntry).file(
async (file) => resolve(await handleFileUpload(file, path)),
(error) => reject(error),
)
}),
]
} else {
const directory = entry as FileSystemDirectoryEntry
// TODO: Implement this on `@nextcloud/upload`
const absolutPath = joinPaths(davRootPath, getUploader().destination.path, path, directory.name)
logger.debug('Handle directory recursively', { name: directory.name, absolutPath })
const davClient = davGetClient()
const dirExists = await davClient.exists(absolutPath)
if (!dirExists) {
logger.debug('Directory does not exist, creating it', { absolutPath })
await davClient.createDirectory(absolutPath, { recursive: true })
const stat = await davClient.stat(absolutPath, { details: true, data: davGetDefaultPropfind() }) as ResponseDataDetailed<FileStat>
emit('files:node:created', davResultToNode(stat.data))
}
const entries = await readDirectory(directory)
// sorted so we upload files first before starting next level
const promises = entries.sort((a) => a.isFile ? -1 : 1)
.map((file) => handleRecursiveUpload(file, `${path}${directory.name}/`))
return (await Promise.all(promises)).flat()
}
}
/**
* Read a directory using Filesystem API
* @param directory the directory to read
*/
function readDirectory(directory: FileSystemDirectoryEntry) {
const dirReader = directory.createReader()
return new Promise<FileSystemEntry[]>((resolve, reject) => {
const entries = [] as FileSystemEntry[]
const getEntries = () => {
dirReader.readEntries((results) => {
if (results.length) {
entries.push(...results)
getEntries()
} else {
resolve(entries)
}
}, (error) => {
reject(error)
})
}
getEntries()
})
}
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