unit DUninstallPW;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls;

type
  TDlgUninstallPW = class(TForm)
    Label1: TLabel;
    edPass: TEdit;
    btnOk: TButton;
    btnCancel: TButton;
    procedure btnOkClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  DlgUninstallPW: TDlgUninstallPW;

implementation

uses
  ManagerService, Tocsg.Hash, Tocsg.Safe, EM.Tocsg.hash, Soap.EncdDecd;

resourcestring
  RS_InputPass = '비밀번호를 입력해 주십시오.';
  RS_WrongPass = '비밀번호가 맞지 않습니다.';

{$R *.dfm}

procedure TDlgUninstallPW.btnOkClick(Sender: TObject);
var
  sha: TSHA256Hash;
  s256d: TSHA256Digest;
  sHash: String;
begin
  edPass.Text := Trim(edPass.Text);

  if edPass.Text = '' then
  begin
    MessageBox(Handle, PChar(RS_InputPass), PChar(Caption), MB_ICONWARNING or MB_OK);
    edPass.SetFocus;
    exit;
  end;

  if gMgSvc.PrefModel.UninstallPW[1] = ':' then
  begin
    Guard(sha, TSHA256Hash.Create);
    sha.SetBuffer(@AnsiString(edPass.Text)[1], Length(edPass.Text));
    sha.WorkFinalToDigest(s256d);
    sHash := ':' + EncodeBase64(@s256d, SizeOf(s256d));

    if (gMgSvc = nil) or
       (sHash <> gMgSvc.PrefModel.UninstallPW) then
    begin
      MessageBox(Handle, PChar(RS_WrongPass), PChar(Caption), MB_ICONWARNING or MB_OK);
      edPass.SetFocus;
      exit;
    end;
  end else
  if (gMgSvc = nil) or
     (gMgSvc.PrefModel.UninstallPW <> edPass.Text) then
  begin
    MessageBox(Handle, PChar(RS_WrongPass), PChar(Caption), MB_ICONWARNING or MB_OK);
    edPass.SetFocus;
    exit;
  end;

  ModalResult := mrOk;
end;

end.