ftp_server 0.0.7 ftp_server: ^0.0.7 copied to clipboard
This package provides a simple FTP server implementation in Dart. It supports both read-only and read-and-write modes, making it suitable for various use cases. The server allows clients to connect an [...]
import 'dart:io';
import 'dart:isolate';
import 'dart:math';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:ftp_server/ftp_server.dart';
import 'package:ftp_server/server_type.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:shared_preferences/shared_preferences.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
MyAppState createState() => MyAppState();
}
class MyAppState extends State<MyApp> {
FtpServer? ftpServer;
String serverStatus = 'Server is not running';
String connectionInfo = 'No connection info';
String directoryPath = 'No directory chosen';
bool isLoading = false;
Isolate? isolate;
ReceivePort? receivePort;
int? port;
@override
void initState() {
super.initState();
if (Platform.isAndroid) {
_requestPermission();
}
_loadDirectory();
}
Future<void> _requestPermission() async {
if (await Permission.manageExternalStorage.isDenied) {
await Permission.manageExternalStorage.request();
}
}
Future<void> _loadDirectory() async {
SharedPreferences prefs = await SharedPreferences.getInstance();
String? savedDirectory = prefs.getString('serverDirectory');
if (savedDirectory != null) {
setState(() {
directoryPath = savedDirectory;
});
}
}
Future<String> getIpAddress() async {
for (var interface in await NetworkInterface.list()) {
for (var addr in interface.addresses) {
if (addr.type == InternetAddressType.IPv4 && !addr.isLoopback) {
return addr.address;
}
}
}
return 'Unknown IP';
}
Future<String?> pickDirectory() async {
String? selectedDirectory = await FilePicker.platform.getDirectoryPath();
if (selectedDirectory != null) {
SharedPreferences prefs = await SharedPreferences.getInstance();
await prefs.setString('serverDirectory', selectedDirectory);
setState(() {
directoryPath = selectedDirectory;
});
}
return selectedDirectory;
}
Future<void> toggleServer() async {
setState(() {
isLoading = true;
});
if (ftpServer == null) {
SharedPreferences prefs = await SharedPreferences.getInstance();
String? serverDirectory = prefs.getString('serverDirectory');
if (serverDirectory == null) {
serverDirectory = await pickDirectory();
if (serverDirectory != null) {
await prefs.setString('serverDirectory', serverDirectory);
} else {
setState(() {
isLoading = false;
});
return;
}
}
var server = FtpServer(
port ?? Random().nextInt(65535),
startingDirectory: serverDirectory,
allowedDirectories: [serverDirectory],
serverType: ServerType.readAndWrite,
);
Future serverFuture = server.start();
ftpServer = server;
var address = await getIpAddress();
setState(() {
serverStatus = 'Server is running';
connectionInfo =
'Connect using FTP client:\nftp://$address:${server.port}';
isLoading = false;
});
await serverFuture;
} else {
await ftpServer!.stop();
ftpServer = null;
setState(() {
serverStatus = 'Server is not running';
connectionInfo = 'No connection info';
isLoading = false;
});
}
}
@override
void dispose() {
receivePort?.close();
isolate?.kill(priority: Isolate.immediate);
super.dispose();
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Flutter FTP Server'),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(serverStatus),
const SizedBox(height: 20),
Text(connectionInfo),
const SizedBox(height: 20),
Text('Directory: $directoryPath'),
const SizedBox(height: 20),
isLoading
? const CircularProgressIndicator()
: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
ElevatedButton(
onPressed: toggleServer,
child: Text(
ftpServer == null ? 'Start Server' : 'Stop Server',
),
),
const SizedBox(width: 20),
ElevatedButton(
onPressed: pickDirectory,
child: const Text('Pick Directory'),
),
],
),
],
),
),
),
);
}
}