added upload with multiple files
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import 'dart:developer';
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import 'dart:io';
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import 'package:async/async.dart';
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import 'package:flutter/material.dart';
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import 'package:nextcloud/nextcloud.dart';
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import '../../../api/marianumcloud/webdav/webdavApi.dart';
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class FileUploadDialog extends StatefulWidget {
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final String localPath;
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final List<String> remotePath;
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final String fileName;
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final void Function() onUploadFinished;
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final bool doShowFinish;
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const FileUploadDialog({super.key, required this.localPath, required this.remotePath, required this.fileName, required this.onUploadFinished, this.doShowFinish = true});
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@override
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State<FileUploadDialog> createState() => _FileUploadDialogState();
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}
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class _FileUploadDialogState extends State<FileUploadDialog> {
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FileUploadState state = FileUploadState.naming;
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CancelableOperation? cancelableOperation;
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late String targetFileName;
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late String remoteFolderName;
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late String fullRemotePath = "${widget.remotePath.join("/")}/$targetFileName";
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String? lastError;
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TextEditingController fileNameController = TextEditingController();
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void upload({bool override = false}) async {
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setState(() {
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state = FileUploadState.upload;
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});
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WebDavClient webdavClient = await WebdavApi.webdav;
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if(!override) {
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setState(() {
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state = FileUploadState.checkConflict;
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});
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List<WebDavResponse> result = (await webdavClient.propfind(PathUri.parse(widget.remotePath.join('/')))).responses;
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if(result.any((element) => element.href!.endsWith('/$targetFileName'))) {
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setState(() {
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state = FileUploadState.conflict;
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});
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return;
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} else {
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setState(() {
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state = FileUploadState.upload;
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});
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}
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}
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Future<HttpClientResponse> uploadTask = webdavClient.putFile(File(widget.localPath), FileStat.statSync(widget.localPath), PathUri.parse(fullRemotePath)); // TODO use onProgress from putFile
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uploadTask.then(Future<HttpClientResponse?>.value).catchError((e) {
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setState(() {
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state = FileUploadState.error;
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});
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return null;
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});
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cancelableOperation = CancelableOperation<HttpClientResponse>.fromFuture(
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uploadTask,
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onCancel: () => log('Upload cancelled'),
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);
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cancelableOperation!.then((value) {
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setState(() {
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state = FileUploadState.done;
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});
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});
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}
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void cancel() {
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cancelableOperation?.cancel();
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setState(() {
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state = FileUploadState.naming;
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});
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}
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@override
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void initState() {
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super.initState();
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targetFileName = widget.fileName;
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remoteFolderName = widget.remotePath.isNotEmpty ? widget.remotePath.last : '/';
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fileNameController.text = widget.fileName;
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}
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@override
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Widget build(BuildContext context) {
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if(state == FileUploadState.naming) {
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return AlertDialog(
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title: const Text('Datei hochladen'),
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content: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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TextField(
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controller: fileNameController,
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onChanged: (input) {
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targetFileName = input;
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},
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autocorrect: false,
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decoration: const InputDecoration(
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labelText: 'Dateiname',
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),
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),
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],
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),
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actions: [
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TextButton(onPressed: () {
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Navigator.of(context).pop();
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}, child: const Text('Abbrechen')),
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TextButton(onPressed: () async {
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upload();
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}, child: const Text('Hochladen')),
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],
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);
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}
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if(state == FileUploadState.conflict) {
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return AlertDialog(
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icon: const Icon(Icons.error_outline),
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title: const Text('Datei konflikt'),
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content: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text("Es gibt bereits eine Datei mit dem Namen $targetFileName in dem ausgewählten Ordner '$remoteFolderName'", textAlign: TextAlign.center),
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],
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),
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actions: [
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TextButton(onPressed: () {
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setState(() {
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state = FileUploadState.naming;
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});
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}, child: const Text('Datei umbenennen')),
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TextButton(onPressed: () {
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upload(override: true);
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}, child: const Text('Datei überschreiben')),
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],
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);
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}
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if(state == FileUploadState.upload || state == FileUploadState.checkConflict) {
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return AlertDialog(
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icon: const Icon(Icons.upload),
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title: const Text('Hochladen'),
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content: Column(
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mainAxisSize: MainAxisSize.min,
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Visibility(
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visible: state == FileUploadState.upload,
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replacement: const Text('Prüfe auf dateikonflikte...'),
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child: const Text('Upload läuft!\nDies kann je nach Dateigröße einige Zeit dauern...', textAlign: TextAlign.center),
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),
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const SizedBox(height: 30),
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const CircularProgressIndicator()
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],
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),
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actions: const [
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// TODO implement working upload cancelling
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// TextButton(onPressed: () {
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// cancel();
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// }, child: const Text("Abbrechen")),
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],
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);
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}
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if(state == FileUploadState.done) {
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widget.onUploadFinished();
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if(!widget.doShowFinish) {
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Navigator.of(context).pop();
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return const SizedBox.shrink();
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}
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return AlertDialog(
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icon: const Icon(Icons.done),
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title: const Text('Upload fertig'),
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content: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text("Die Datei wurde erfolgreich nach '$remoteFolderName' hochgeladen!", textAlign: TextAlign.center),
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],
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),
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actions: [
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TextButton(onPressed: () {
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Navigator.of(context).pop();
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}, child: const Text('Fertig')),
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],
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);
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}
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if(state == FileUploadState.error) {
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return AlertDialog(
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icon: const Icon(Icons.error_outline),
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title: const Text('Fehler'),
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content: const Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text('Es ist ein Fehler aufgetreten!', textAlign: TextAlign.center),
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],
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),
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actions: [
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TextButton(onPressed: () {
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Navigator.of(context).pop();
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}, child: const Text('Schlißen')),
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],
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);
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}
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throw UnimplementedError('Invalid state');
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}
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}
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enum FileUploadState {
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naming,
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checkConflict,
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conflict,
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upload,
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done,
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error
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}
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