unit login;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls;

type
  TF_login = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    i_server_add: TComboBox;
    i_user: TEdit;
    i_passwd: TEdit;
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  F_login: TF_login;

implementation

uses DataModule, crypt, mainwin;

{$R *.DFM}

procedure TF_login.Button1Click(Sender: TObject);
var
  passwd, passwrd:String;
begin
  With DataModule1 do
  begin
    Database.Connected:=False;
    Database.Params.Values['SERVER NAME']:=i_server_add.Text;
    Database.Connected:=True;
    T_user.Filter:='ID='''+i_user.Text+'''';
    T_user.Filtered:=True;
    T_user.Open;
    if T_user.RecordCount=1 then
    begin
      passwd:=i_passwd.Text;
      if length(passwd)>5 then
      begin
        passwd:=Copy(passwd+passwd,1,10);//統一密碼長度
        passwd:=Encrypt(passwd,123);//加密
      end;
      passwrd:=T_user['PASSWD'];
      if (passwrd=passwd) and (T_user['AUTHORITY']='3') then
        F_main.login:=True
      else
       Application.MessageBox('請重新輸入密碼。'+#13+'注意大小寫！','密碼錯誤',MB_OK);
    end
    else
      Application.MessageBox('請確認用戶名大小寫是否正確！','無此用戶',MB_OK);
    T_user.Close;
  end;
  if F_main.login then F_login.Close;
end;

end.