103 lines
2.8 KiB
Dart
103 lines
2.8 KiB
Dart
import 'package:http/http.dart' as http;
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import 'dart:convert';
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import 'package:shared_preferences/shared_preferences.dart';
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const String wellKnownPath = "/.well-known/outbag/server";
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const int defaultPort = 7223;
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Future<Uri> fetchWellKnown(String host, int port) async {
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Uri uri = Uri(path: wellKnownPath, host: host, port: port, scheme: "https");
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final resp = await http.get(uri);
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final json = jsonDecode(resp.body);
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return Uri(host: host, path: json['path'], port: json['port']);
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}
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class OutbagServer {
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final String host;
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final int port;
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final String path;
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final String tag;
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const OutbagServer(
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{required this.host,
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required this.port,
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required this.path,
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required this.tag});
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String get base {
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return Uri(
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host: host,
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port: port,
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path: path,
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scheme: 'https',
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).toString();
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}
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factory OutbagServer.fromMap(Map<String, dynamic> data) {
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return OutbagServer(
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tag: data['tag'],
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host: data['host'],
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path: data['path'],
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port: data['port']);
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}
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Map<String, dynamic> toMap() {
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return {'host': host, 'port': port, 'path': path, 'tag': tag};
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}
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Future<void> toDisk() async {
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final SharedPreferences prefs = await SharedPreferences.getInstance();
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await prefs.setString('server-host', host);
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await prefs.setInt('server-port', port);
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await prefs.setString('server-path', path);
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await prefs.setString('server-tag', tag);
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}
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static Future<OutbagServer> fromDisk() async {
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final SharedPreferences prefs = await SharedPreferences.getInstance();
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return OutbagServer(
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path: prefs.getString('server-path')!,
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port: prefs.getInt('server-port')!,
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tag: prefs.getString('server-tag')!,
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host: prefs.getString('server-host')!);
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}
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static Future<void> removeDisk() async {
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final SharedPreferences prefs = await SharedPreferences.getInstance();
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await prefs.remove('server-host');
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await prefs.remove('server-port');
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await prefs.remove('server-path');
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await prefs.remove('server-tag');
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}
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}
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Future<OutbagServer> getOutbagServerUrl(String tag) async {
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final rootUri = Uri.parse(tag.startsWith('https://') ? tag : 'https://$tag');
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bool onRoot = rootUri.port == 443;
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try {
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final uri = await fetchWellKnown(rootUri.host, rootUri.port);
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return OutbagServer(
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host: rootUri.host,
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port: uri.port,
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path: uri.path,
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tag: onRoot ? rootUri.host : '${rootUri.host}:${uri.port}');
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} catch (_) {
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if (onRoot) {
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final uri = await fetchWellKnown(rootUri.host, defaultPort);
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return OutbagServer(
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host: rootUri.host,
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port: uri.port,
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path: uri.path,
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tag: onRoot ? rootUri.host : '${rootUri.host}:${uri.port}');
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}
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}
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throw Error();
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}
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