145 lines
3.9 KiB
C#
145 lines
3.9 KiB
C#
using System;
|
||
using System.Collections.Generic;
|
||
using System.Reactive;
|
||
using System.Windows.Forms;
|
||
using DispenserCommon.Aop;
|
||
using DispenserCommon.Ioc;
|
||
using DispenserCommon.Utils;
|
||
using DispenserCore.Context;
|
||
using DispenserCore.Model.DTO;
|
||
using DispenserCore.Service;
|
||
using ReactiveUI;
|
||
using LoginErrorWindow = DispenserUI.Views.Windows.LoginErrorWindow;
|
||
|
||
namespace DispenserUI.ViewModels.Login;
|
||
|
||
[Component, GlobalTry]
|
||
public class LoginVM : DynamicViewModel
|
||
{
|
||
private readonly Dictionary<string, int> _errorTimes = new();
|
||
|
||
private readonly GlobalSessionHolder _sessionHolder = ServiceLocator.GetService<GlobalSessionHolder>();
|
||
|
||
// 用来记录登录错误告警情况，10分钟内异常超过3次则添加到小黑屋里面去
|
||
private readonly SlidingWindow _slidingWindow = new(10 * 60 * 1000);
|
||
private readonly UserService _userService = ServiceLocator.GetService<UserService>();
|
||
private bool _isCapsLockIndicatorVisible;
|
||
|
||
//订阅IsCapsLockOn、IsPwdTextBoxFocus
|
||
private bool _isCapsLockOn;
|
||
private bool _isPwdTextBoxFocus;
|
||
|
||
private string _password;
|
||
|
||
private bool _showError;
|
||
|
||
private string _userName;
|
||
|
||
public LoginVM()
|
||
{
|
||
Visible = false;
|
||
CapsLockUpCommand = ReactiveCommand.Create(CapsLockUp);
|
||
PwdTextBoxGotFocusCommand = ReactiveCommand.Create(PwdTextBoxGotFocus);
|
||
PwdTextBoxLostFocusCommand = ReactiveCommand.Create(PwdTextBoxLostFocus);
|
||
ToLogin = ReactiveCommand.Create(Login);
|
||
}
|
||
|
||
public string UserName
|
||
{
|
||
get => _userName;
|
||
set => this.RaiseAndSetIfChanged(ref _userName, value);
|
||
}
|
||
|
||
public string Password
|
||
{
|
||
get => _password;
|
||
set => this.RaiseAndSetIfChanged(ref _password, value);
|
||
}
|
||
|
||
|
||
public bool IsCapsLockIndicatorVisible
|
||
{
|
||
get => _isCapsLockIndicatorVisible;
|
||
set => this.RaiseAndSetIfChanged(ref _isCapsLockIndicatorVisible, value);
|
||
}
|
||
|
||
public bool ShowError
|
||
{
|
||
get => _showError;
|
||
set => this.RaiseAndSetIfChanged(ref _showError, value);
|
||
}
|
||
|
||
|
||
public ReactiveCommand<Unit, Unit> CapsLockUpCommand { get; }
|
||
public ReactiveCommand<Unit, Unit> PwdTextBoxGotFocusCommand { get; }
|
||
|
||
public ReactiveCommand<Unit, Unit> PwdTextBoxLostFocusCommand { get; }
|
||
|
||
public ReactiveCommand<Unit, Unit> ToLogin { get; }
|
||
|
||
private void CapsLockUp()
|
||
{
|
||
_isCapsLockOn = Control.IsKeyLocked(Keys.CapsLock);
|
||
UpdateCapsLockIndicator();
|
||
}
|
||
|
||
private void PwdTextBoxGotFocus()
|
||
{
|
||
_isPwdTextBoxFocus = true;
|
||
ShowError = false;
|
||
UpdateCapsLockIndicator();
|
||
}
|
||
|
||
private void PwdTextBoxLostFocus()
|
||
{
|
||
_isPwdTextBoxFocus = false;
|
||
ShowError = false;
|
||
UpdateCapsLockIndicator();
|
||
}
|
||
|
||
private void UpdateCapsLockIndicator()
|
||
{
|
||
IsCapsLockIndicatorVisible = _isCapsLockOn && _isPwdTextBoxFocus;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 登录
|
||
/// </summary>
|
||
[Operation("用户登录")]
|
||
private void Login()
|
||
{
|
||
try
|
||
{
|
||
// 如果登录异常次数超过3次，则提示用户
|
||
if (_slidingWindow.Contains(UserName))
|
||
{
|
||
WindowUtil.ShowDialog(new LoginErrorWindow());
|
||
// 清空当前的错误统计
|
||
_errorTimes.Remove(UserName);
|
||
return;
|
||
}
|
||
|
||
ShowError = false;
|
||
|
||
// 进行登录验证
|
||
var user = _userService.Login(UserName, Password);
|
||
|
||
// 将登录结果记录下来
|
||
_sessionHolder.SetSession(new Session(user));
|
||
}
|
||
catch (Exception e)
|
||
{
|
||
ShowError = true;
|
||
_errorTimes.TryGetValue(UserName, out var times);
|
||
times += 1;
|
||
if (times >= 3)
|
||
{
|
||
// 添加到小黑屋，10分钟内不能进行登录
|
||
_slidingWindow.AllowValue(UserName);
|
||
return;
|
||
}
|
||
|
||
_errorTimes[UserName] = times;
|
||
}
|
||
}
|
||
} |