640 lines
22 KiB
C#
640 lines
22 KiB
C#
///
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/// Copyright (c) 2019 Sensus Slovensko a.s.
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///
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using System;
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using System.Drawing;
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using System.Windows.Forms;
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using Common;
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using GemCard;
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using SharedDatabase.Entities;
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using SharedDatabase.Resources;
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namespace SharedDatabase.Forms
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{
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/// <summary>
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/// Provides login dialog as well as user authorization using TBF.User.Authorize(...)
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/// (i.e. when DialogResult is OK, user was authorized).
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/// </summary>
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public partial class TripleLoginDlg : Form
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{
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// Private fields
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string predefinedUser;
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GID[] requiredGroupMembership;
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Form parentForm;
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bool noDatabase;
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Color oriBackColor;
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/// Smart card support, card S/N is used as user.Tag
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GemCard.CardNative card;
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string[] cardReaders;
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string smartCardReader;
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User authorizedUser1; /// Authorized user 1 or null
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User authorizedUser2; /// Authorized user 2 or null
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User authorizedUser3; /// Authorized user 3 or null
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public LoginMethod Method1;
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public LoginMethod Method2;
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public LoginMethod Method3;
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public string VersionString;
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/// <summary>
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/// Constructor.
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/// </summary>
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public TripleLoginDlg()
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{
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InitializeComponent();
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this.Icon = Properties.Resources.TBF_icon;
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loginStatePictureBox1.Image = Properties.Resources.questionMark;
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loginStatePictureBox2.Image = Properties.Resources.questionMark;
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loginStatePictureBox3.Image = Properties.Resources.questionMark;
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authorizedUser1 = null;
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authorizedUser2 = null;
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authorizedUser3 = null;
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oriBackColor = BackColor;
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}
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/// <summary>
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/// Constructor with a predefined user.
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/// </summary>
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public TripleLoginDlg(string predefinedUser, Form parentForm)
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: this()
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{
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this.predefinedUser = predefinedUser;
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this.parentForm = parentForm;
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userNameTextBox1.Text = predefinedUser;
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}
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/// <summary>
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/// Constructor with two owrkplace names.
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/// </summary>
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/// <param name="workplace1">Name of workplace A</param>
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/// <param name="workplace2">Name of workplace B</param>
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public TripleLoginDlg(string workplace1, string workplace2, string workplace3, Form parentForm)
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: this()
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{
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this.parentForm = parentForm;
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workplaceGroupBox1.Text = workplace1;
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workplaceGroupBox2.Text = workplace2;
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workplaceGroupBox3.Text = workplace3;
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}
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/// <summary>
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/// Constructor with 'no Database' flag.
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/// </summary>
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public TripleLoginDlg(bool noDatabase)
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: this()
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{
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this.noDatabase = noDatabase;
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}
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/// <summary>
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/// Constructor when a specific group membership is required.
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/// </summary>
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public TripleLoginDlg(GID[] requiredGroupMembership, Form parentForm)
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: this()
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{
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this.requiredGroupMembership = requiredGroupMembership;
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this.parentForm = parentForm;
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}
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/// <summary>
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/// Constructor with a predefined user when a specific group membership is required.
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/// </summary>
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public TripleLoginDlg(string predefinedUser, GID[] requiredGroupMembership, Form parentForm)
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: this()
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{
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this.predefinedUser = predefinedUser;
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this.requiredGroupMembership = requiredGroupMembership;
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this.parentForm = parentForm;
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userNameTextBox1.Text = predefinedUser;
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}
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private void LoginDlg_Load(object sender, EventArgs e)
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{
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Localize();
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if (predefinedUser == null)
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{
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userNameTextBox1.Select();
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}
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else
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{
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passwordTextBox1.Select();
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}
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///
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/// Smart card reader detection
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///
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smartCardReader = null; /// null = No smart card reader detected
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try
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{
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card = new CardNative();
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/// Find NFC smart card reader
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cardReaders = card.ListReaders();
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foreach (var crd in cardReaders)
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{
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if (crd.Contains("NFC"))
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{
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smartCardReader = crd; /// NFC smart card reader detected
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break;
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}
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}
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if (!string.IsNullOrEmpty(smartCardReader))
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{
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/// Reader found, initialize NFC smart card reader
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card.OnCardInserted += delegate(object sndr, CardInsertedEventArgs args)
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{
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if (InvokeRequired) { Invoke(new EventHandler<CardInsertedEventArgs>(OnCardInserted), sndr, args); }
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else OnCardInserted(sndr, args);
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};
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card.OnCardRemoved += delegate(object sndr, CardRemovedEventArgs args)
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{
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if (InvokeRequired) { Invoke(new EventHandler<CardRemovedEventArgs>(OnCardRemoved), sndr, args); }
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else OnCardRemoved(sndr, args);
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};
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card.StartCardEvents(smartCardReader);
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Text += " (NFC)";
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}
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}
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catch (Exception)
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{
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smartCardReader = null;
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}
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}
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void Localize()
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{
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Text = Strings.User_Login + (string.IsNullOrEmpty(VersionString) ? "" : (" " + VersionString));
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aliasLabel1.Text = GetAliasLabel(Method1);
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aliasLabel2.Text = GetAliasLabel(Method2);
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aliasLabel3.Text = GetAliasLabel(Method3);
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passwordLabel1.Text = Strings.Password;
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passwordLabel2.Text = Strings.Password;
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passwordLabel3.Text = Strings.Password;
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okButton.Text = Strings.OkBtnText;
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cancelButton.Text = Strings.CancelBtnText;
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}
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string GetAliasLabel(LoginMethod method)
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{
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switch (method)
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{
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default:
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case LoginMethod.UserName: return Strings.User_name;
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case LoginMethod.FullName: return Strings.Full_name;
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case LoginMethod.Number: return Strings.User_code;
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}
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}
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/// <summary>
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/// Try to authorize the user when OK clicked.
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/// </summary>
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private void okButton_Click(object sender, EventArgs e)
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{
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User tempUser;
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if (authorizedUser1 == null)
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{
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if (string.IsNullOrEmpty(userNameTextBox1.Text) || string.IsNullOrEmpty(passwordTextBox1.Text))
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{
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loginStatePictureBox1.Image = Properties.Resources.questionMark;
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}
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else if ((tempUser = TryAuthorize(userNameTextBox1.Text, passwordTextBox1.Text, Method1)) != null)
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{
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authorizedUser1 = tempUser;
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loginStatePictureBox1.Image = Properties.Resources.accepted;
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}
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else
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{
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authorizedUser1 = null;
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loginStatePictureBox1.Image = Properties.Resources.rejected;
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}
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}
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if (authorizedUser2 == null)
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{
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if (string.IsNullOrEmpty(userNameTextBox2.Text) || string.IsNullOrEmpty(passwordTextBox2.Text))
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{
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loginStatePictureBox2.Image = Properties.Resources.questionMark;
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}
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else if ((tempUser = TryAuthorize(userNameTextBox2.Text, passwordTextBox2.Text, Method2)) != null)
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{
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authorizedUser2 = tempUser;
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loginStatePictureBox2.Image = Properties.Resources.accepted;
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}
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else
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{
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authorizedUser2 = null;
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loginStatePictureBox2.Image = Properties.Resources.rejected;
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}
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}
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if (authorizedUser3 == null)
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{
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if (string.IsNullOrEmpty(userNameTextBox3.Text) || string.IsNullOrEmpty(passwordTextBox3.Text))
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{
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loginStatePictureBox3.Image = Properties.Resources.questionMark;
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}
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else if ((tempUser = TryAuthorize(userNameTextBox3.Text, passwordTextBox3.Text, Method3)) != null)
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{
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authorizedUser3 = tempUser;
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loginStatePictureBox3.Image = Properties.Resources.accepted;
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}
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else
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{
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authorizedUser3 = null;
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loginStatePictureBox3.Image = Properties.Resources.rejected;
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}
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}
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if (AreAllUsersKnown())
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{
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PrepareClosingDlg();
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return;
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}
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MessageBox.Show(Strings.Invalid_username_or_password, Strings.Error, MessageBoxButtons.OK);
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DialogResult = DialogResult.None;
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return;
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}
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User TryAuthorize(string user, string password, LoginMethod method)
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{
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if (Common.Utils.IsPowerUser(user, password))
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{
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return new User(user, 6, true);
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}
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User loadedUser = null;
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bool authorized = false;
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if (!noDatabase)
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{
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DBSettings db = CurrentUser.LocalUsersDB;
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loadedUser = User.LoadUserByName(user, db);
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if (loadedUser != null)
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{
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switch (method)
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{
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default:
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case LoginMethod.UserName:
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authorized = loadedUser.Authorize(user, password, requiredGroupMembership, parentForm);
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break;
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case LoginMethod.FullName:
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authorized = loadedUser.AuthorizeFullName(user, password, requiredGroupMembership, parentForm);
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break;
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case LoginMethod.Number:
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int number;
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if (!int.TryParse(user, out number)) break;
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authorized = loadedUser.AuthorizeNumber(number, password, requiredGroupMembership, parentForm);
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break;
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}
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}
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}
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return authorized ? loadedUser : null;
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}
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/// <summary>
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/// Cancel clicked, do not try to authorize.
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/// </summary>
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private void cancelButton_Click(object sender, EventArgs e)
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{
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if (requiredGroupMembership == null)
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{
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Entities.User.Unauthorize(parentForm);
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}
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DialogResult = DialogResult.Cancel;
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Close();
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return;
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}
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private void aliasLabel1_Click(object sender, EventArgs e)
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{
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if (++Method1 == LoginMethod.Count) Method1 = 0;
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aliasLabel1.Text = GetAliasLabel(Method1);
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}
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private void aliasLabel2_Click(object sender, EventArgs e)
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{
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if (++Method2 == LoginMethod.Count) Method2 = 0;
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aliasLabel2.Text = GetAliasLabel(Method2);
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}
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private void aliasLabel3_Click(object sender, EventArgs e)
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{
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if (++Method3 == LoginMethod.Count) Method3 = 0;
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aliasLabel3.Text = GetAliasLabel(Method3);
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}
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void OnCardInserted(object sender, CardInsertedEventArgs args)
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{
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BackColor = Color.Green;
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card.Connect(smartCardReader, SHARE.Shared, PROTOCOL.T0orT1);
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/// Read the serial number of the card
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APDUResponse response = card.Transmit(new APDUCommand(0xFF, 0xCA, 0x00, 0x00, null, 7));
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string tag = response.ToString();
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card.Disconnect(DISCONNECT.Leave);
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bool authorized = false;
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DBSettings db = CurrentUser.LocalUsersDB;
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User loadedUser = User.LoadUserByTag(tag, db);
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if (loadedUser != null)
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{
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authorized = loadedUser.AuthorizeTag(tag, requiredGroupMembership, parentForm);
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}
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if (ActiveControl == userNameTextBox1 || ActiveControl == passwordTextBox1)
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{
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if (authorized)
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{
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userNameTextBox1.Text = loadedUser.UserName;
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passwordTextBox1.Text = string.Empty;
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authorizedUser1 = loadedUser;
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loginStatePictureBox1.Image = Properties.Resources.accepted;
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userNameTextBox2.Focus();
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}
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else
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{
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userNameTextBox1.Text = string.Empty;
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passwordTextBox1.Text = string.Empty;
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authorizedUser1 = null;
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loginStatePictureBox1.Image = Properties.Resources.rejected;
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}
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}
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else if (ActiveControl == userNameTextBox2 || ActiveControl == passwordTextBox2)
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{
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if (authorized)
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{
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userNameTextBox2.Text = loadedUser.UserName;
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passwordTextBox2.Text = string.Empty;
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authorizedUser2 = loadedUser;
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loginStatePictureBox2.Image = Properties.Resources.accepted;
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userNameTextBox3.Focus();
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}
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else
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{
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userNameTextBox2.Text = string.Empty;
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passwordTextBox2.Text = string.Empty;
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authorizedUser2 = null;
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loginStatePictureBox2.Image = Properties.Resources.rejected;
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}
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}
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else if (ActiveControl == userNameTextBox3 || ActiveControl == passwordTextBox3)
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{
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if (authorized)
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{
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userNameTextBox3.Text = loadedUser.UserName;
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passwordTextBox3.Text = string.Empty;
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authorizedUser3 = loadedUser;
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loginStatePictureBox3.Image = Properties.Resources.accepted;
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userNameTextBox1.Focus();
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}
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else
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{
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userNameTextBox3.Text = string.Empty;
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passwordTextBox3.Text = string.Empty;
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authorizedUser3 = null;
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loginStatePictureBox3.Image = Properties.Resources.rejected;
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}
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}
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if (authorizedUser1 == null && !string.IsNullOrEmpty(userNameTextBox1.Text) && !string.IsNullOrEmpty(passwordTextBox1.Text))
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{
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authorizedUser1 = TryAuthorize(userNameTextBox1.Text, passwordTextBox1.Text, Method1);
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loginStatePictureBox1.Image = (authorizedUser1 != null) ? Properties.Resources.accepted : Properties.Resources.rejected;
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}
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if (authorizedUser2 == null && !string.IsNullOrEmpty(userNameTextBox2.Text) && !string.IsNullOrEmpty(passwordTextBox2.Text))
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{
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authorizedUser2 = TryAuthorize(userNameTextBox2.Text, passwordTextBox2.Text, Method2);
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loginStatePictureBox2.Image = (authorizedUser2 != null) ? Properties.Resources.accepted : Properties.Resources.rejected;
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}
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if (authorizedUser3 == null && !string.IsNullOrEmpty(userNameTextBox3.Text) && !string.IsNullOrEmpty(passwordTextBox3.Text))
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{
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authorizedUser3 = TryAuthorize(userNameTextBox3.Text, passwordTextBox3.Text, Method3);
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loginStatePictureBox3.Image = (authorizedUser3 != null) ? Properties.Resources.accepted : Properties.Resources.rejected;
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}
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if (AreAllUsersKnown())
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{
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PrepareClosingDlg();
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return;
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}
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//MessageBox.Show(Strings.Invalid_username_or_password, Strings.Error, MessageBoxButtons.OK);
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DialogResult = DialogResult.None;
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return;
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}
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void OnCardRemoved(object sender, CardRemovedEventArgs args)
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{
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BackColor = oriBackColor;
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}
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private void LoginDlg_FormClosing(object sender, FormClosingEventArgs e)
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{
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if (!string.IsNullOrEmpty(smartCardReader))
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{
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card.StopCardEvents();
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}
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}
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///
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/// 1st user / password TextBox processing
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///
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private void userNameTextBox1_KeyPress(object sender, KeyPressEventArgs e)
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{
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if (Convert.ToInt32(e.KeyChar) == 13)
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{
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passwordTextBox1.Focus();
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}
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}
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private void passwordTextBox1_KeyPress(object sender, KeyPressEventArgs e)
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{
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if (Convert.ToInt32(e.KeyChar) == 13)
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{
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User tempUser;
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if (string.IsNullOrEmpty(userNameTextBox1.Text) || string.IsNullOrEmpty(passwordTextBox1.Text))
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{
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loginStatePictureBox1.Image = Properties.Resources.questionMark;
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}
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else if ((tempUser = TryAuthorize(userNameTextBox1.Text, passwordTextBox1.Text, Method1)) != null)
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{
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authorizedUser1 = tempUser;
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loginStatePictureBox1.Image = Properties.Resources.accepted;
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}
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else
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{
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authorizedUser1 = null;
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loginStatePictureBox1.Image = Properties.Resources.rejected;
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}
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if (AreAllUsersKnown())
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{
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PrepareClosingDlg();
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return;
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}
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userNameTextBox2.Focus();
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}
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}
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private void userNameTextBox1_TextChanged(object sender, EventArgs e)
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{
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authorizedUser1 = null;
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loginStatePictureBox1.Image = Properties.Resources.questionMark;
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}
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private void passwordTextBox1_TextChanged(object sender, EventArgs e)
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{
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authorizedUser1 = null;
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loginStatePictureBox1.Image = Properties.Resources.questionMark;
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}
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///
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/// 2nd user / password TextBox processing
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///
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private void userNameTextBox2_KeyPress(object sender, KeyPressEventArgs e)
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{
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if (Convert.ToInt32(e.KeyChar) == 13)
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{
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passwordTextBox2.Focus();
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}
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}
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private void passwordTextBox2_KeyPress(object sender, KeyPressEventArgs e)
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{
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if (Convert.ToInt32(e.KeyChar) == 13)
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{
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User tempUser;
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if (string.IsNullOrEmpty(userNameTextBox2.Text) || string.IsNullOrEmpty(passwordTextBox2.Text))
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{
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loginStatePictureBox2.Image = Properties.Resources.questionMark;
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}
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else if ((tempUser = TryAuthorize(userNameTextBox2.Text, passwordTextBox2.Text, Method2)) != null)
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{
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authorizedUser2 = tempUser;
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loginStatePictureBox2.Image = Properties.Resources.accepted;
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}
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else
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{
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authorizedUser2 = null;
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loginStatePictureBox2.Image = Properties.Resources.rejected;
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}
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if (AreAllUsersKnown())
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{
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PrepareClosingDlg();
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return;
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}
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userNameTextBox3.Focus();
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}
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}
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private void userNameTextBox2_TextChanged(object sender, EventArgs e)
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{
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authorizedUser2 = null;
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loginStatePictureBox2.Image = Properties.Resources.questionMark;
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}
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private void passwordTextBox2_TextChanged(object sender, EventArgs e)
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{
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authorizedUser2 = null;
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loginStatePictureBox2.Image = Properties.Resources.questionMark;
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}
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///
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/// 3rd user / password TextBox processing
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///
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private void userNameTextBox3_KeyPress(object sender, KeyPressEventArgs e)
|
|
{
|
|
if (Convert.ToInt32(e.KeyChar) == 13)
|
|
{
|
|
passwordTextBox3.Focus();
|
|
}
|
|
}
|
|
private void passwordTextBox3_KeyPress(object sender, KeyPressEventArgs e)
|
|
{
|
|
if (Convert.ToInt32(e.KeyChar) == 13)
|
|
{
|
|
User tempUser;
|
|
if (string.IsNullOrEmpty(userNameTextBox3.Text) || string.IsNullOrEmpty(passwordTextBox3.Text))
|
|
{
|
|
loginStatePictureBox3.Image = Properties.Resources.questionMark;
|
|
}
|
|
else if ((tempUser = TryAuthorize(userNameTextBox3.Text, passwordTextBox3.Text, Method3)) != null)
|
|
{
|
|
authorizedUser3 = tempUser;
|
|
loginStatePictureBox3.Image = Properties.Resources.accepted;
|
|
}
|
|
else
|
|
{
|
|
authorizedUser3 = null;
|
|
loginStatePictureBox3.Image = Properties.Resources.rejected;
|
|
}
|
|
|
|
if (AreAllUsersKnown())
|
|
{
|
|
PrepareClosingDlg();
|
|
return;
|
|
}
|
|
|
|
userNameTextBox1.Focus();
|
|
}
|
|
}
|
|
private void userNameTextBox3_TextChanged(object sender, EventArgs e)
|
|
{
|
|
authorizedUser3 = null;
|
|
loginStatePictureBox3.Image = Properties.Resources.questionMark;
|
|
}
|
|
private void passwordTextBox3_TextChanged(object sender, EventArgs e)
|
|
{
|
|
authorizedUser3 = null;
|
|
loginStatePictureBox3.Image = Properties.Resources.questionMark;
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
/// Returns true when all 3 users are already logged in
|
|
/// </summary>
|
|
bool AreAllUsersKnown()
|
|
{
|
|
return (authorizedUser1 != null) && (authorizedUser2 != null) && (authorizedUser3 != null);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Actions before closing this dialog on successful login of all users
|
|
/// </summary>
|
|
void PrepareClosingDlg()
|
|
{
|
|
CurrentUser.Change(authorizedUser1, parentForm);
|
|
CurrentUser.User2 = authorizedUser2;
|
|
CurrentUser.User3 = authorizedUser3;
|
|
|
|
DialogResult = DialogResult.OK;
|
|
Close();
|
|
}
|
|
}
|
|
}
|