169 lines
3.2 KiB
Dart
169 lines
3.2 KiB
Dart
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import 'dart:async';
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import 'dart:convert';
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import 'dart:ffi';
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import 'dart:io';
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import 'dart:typed_data';
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import 'package:common/utils/toast_utils.dart';
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import 'package:web_synchronization_tool/windows/little_extension.dart';
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import 'package:web_synchronization_tool/windows/socket_tool.dart';
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import '../windows/code.dart';
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class LoginSocketUtils extends LoginSocket {
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// 私有构造函数
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LoginSocketUtils._();
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// 私有静态变量，保存类的唯一实例
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static LoginSocketUtils? _instance;
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// 公开的静态方法，返回类的唯一实例
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static LoginSocketUtils getInstance() {
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_instance ??= LoginSocketUtils._();
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return _instance!;
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}
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}
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typedef loginBlockFun = Function(Map);
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class LoginSocket{
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String url = '110.42.251.214';
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static int port = 37785;
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String uuid = '';
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Socket? socket;
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int heartTime = 0;
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connect() async {
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socket?.close();
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socket = await Socket.connect(url, port, timeout: const Duration(seconds: 30));
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heartTime = DateTime.now().millisecondsSinceEpoch;
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socket?.listen((event) {
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Map data = dataCute(event);
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// 登录结果
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if (data['op'] == 2){
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loginBlock(data);
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}
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// 服务器心跳
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if (data['op'] == 4){
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try{
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// 更新上次心跳时间
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heartTime = DateTime.now().millisecondsSinceEpoch;
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// 心跳回报时间是否超时
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int time = data['time'];
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time = DateTime.now().millisecondsSinceEpoch - time;
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if(time> (3 * 60 * 1000) ){ // 时间戳 > 3分钟
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socketError();
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}
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}catch(e){
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socketError();
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}
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}
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},onDone: (){
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},onError: (error){
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// 连接断开
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socketError();
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socket?.destroy();
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});
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}
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socketError(){
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/// 任何错误都显示这个
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ToastUtils.showLoading(msg: '重连中');
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/// 关闭同步 socket
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SocketUtils.getInstance().socket?.close();
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}
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late loginBlockFun loginBlock;
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// 登录
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login(String account,String passwoord,loginBlockFun blockFun){
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loginBlock = blockFun;
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Map map = {
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'op':1,
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'account':account,
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'password':passwoord,
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'uuid':uuid
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};
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final dd = dataMake(map);
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socket?.add(dd);
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socket?.flush();
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}
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/// 心跳
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heartbeat(){
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Timer(const Duration(seconds: 20), () async {
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final time = DateTime.now().millisecondsSinceEpoch - heartTime;
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if(time > (3 * 60 * 1000) ){ // 时间戳 > 3分钟
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socketError();
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return;
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}
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heartbeat();
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Map map = {
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"op": 3,
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};
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socket?.add(dataMake(map));
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socket?.flush();
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});
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}
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/// 发送数据的处理
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List<int> dataMake(Map map){
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// 将Map对象转换为JSON字符串
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String json = jsonEncode(map);
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// 加密
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String ps = makecode(json, skey);
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List<int> bytes = ps.codeUnits; // 将字符串转换为字节数组
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return bytes.toLittle();
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}
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/// 接收数据处理
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Map dataCute(Uint8List data){
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if (data.length <= 4) return {};
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Uint8List pData = data.sublist(4,data.length);
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String str = cutecode(pData);
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Map map = json.decode(str);
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return map;
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}
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}
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