feat(Uploader): Enable chunked upload for public shares if supported

Signed-off-by: provokateurin <kate@provokateurin.de>

Author: provokateurin

lib/uploader/uploader.ts

@@ -25,6 +25,7 @@ import { Directory } from '../utils/fileTree.ts'
 import { t } from '../utils/l10n.ts'
 import logger from '../utils/logger.ts'
 import { Eta } from './eta.ts'
+import { generateRemoteUrl, getBaseUrl } from '@nextcloud/router'
 
 export enum UploaderStatus {
 	IDLE = 0,
@@ -477,7 +478,7 @@ export class Uploader {
 			// If manually disabled or if the file is too small
 			// TODO: support chunk uploading in public pages
 			const maxChunkSize = getMaxChunksSize('size' in file ? file.size : undefined)
-			const disabledChunkUpload = this._isPublic
+			const disabledChunkUpload = !(getCapabilities().dav['public-shares-chunking'] ?? false)
 				|| maxChunkSize === 0
 				|| ('size' in file && file.size < maxChunkSize)
 
@@ -491,8 +492,16 @@ export class Uploader {
 			if (!disabledChunkUpload) {
 				logger.debug('Initializing chunked upload', { file, upload })
 
+				let chunksWorkspace: string
+				if (this._isPublic) {
+					const shareToken = root!.split('/').at(-1)!
+					chunksWorkspace = `${getBaseUrl()}/public.php/dav/uploads/${shareToken}`
+				} else {
+					chunksWorkspace = generateRemoteUrl(`dav/uploads/${getCurrentUser()?.uid}`)
+				}
+
 				// Let's initialize a chunk upload
-				const tempUrl = await initChunkWorkspace(encodedDestinationFile, retries)
+				const tempUrl = await initChunkWorkspace(chunksWorkspace, encodedDestinationFile, retries)
 				const chunksQueue: Array<Promise<void>> = []
 
 				// Generate chunks array

lib/utils/upload.ts

@@ -112,11 +112,11 @@ export const getChunk = function(file: File, start: number, length: number): Pro
 
 /**
  * Create a temporary upload workspace to upload the chunks to
+ * @param chunksWorkspace The workspace where the file is uploaded to
  * @param destinationFile The file name after finishing the chunked upload
  * @param retries number of retries
  */
-export const initChunkWorkspace = async function(destinationFile: string | undefined = undefined, retries: number = 5): Promise<string> {
-	const chunksWorkspace = generateRemoteUrl(`dav/uploads/${getCurrentUser()?.uid}`)
+export const initChunkWorkspace = async function(chunksWorkspace: string, destinationFile: string | undefined = undefined, retries: number = 5): Promise<string> {
 	const hash = [...Array(16)].map(() => Math.floor(Math.random() * 16).toString(16)).join('')
 	const tempWorkspace = `web-file-upload-${hash}`
 	const url = `${chunksWorkspace}/${tempWorkspace}`