unit sl3loc;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Buttons, Gauges, IniFiles, HexUtils;

type
  TForm1 = class(TForm)
    Log: TMemo;
    Pr: TGauge;
    LoadL: TBitBtn;
    Stb: TBitBtn;
    GroupBox2: TGroupBox;
    Label2: TLabel;
    Speed: TEdit;
    SaltB: TComboBox;
    Label3: TLabel;
    Label4: TLabel;
    Elap: TEdit;
    Label1: TLabel;
    ImeiE: TEdit;
    OpenDialog: TOpenDialog;
    Rsalt: TCheckBox;
    procedure LoadLClick(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure StbClick(Sender: TObject);
  private
    { Private declarations }
  public
    procedure Rndmc;
    function  Rndc(I: Integer): word;
    { Public declarations }
  end;

var
  Form1: TForm1;
  StartDir: string;
  OldX : integer;
  term:boolean;
implementation

{$R *.dfm}

procedure TForm1.LoadLClick(Sender: TObject);
label fr;
var
ifi:TIniFile;
s,hash:string;
i,j:integer;
begin
      with OpenDialog do begin
       FilterIndex:=1;
       InitialDir := ExtractFilePath(FileName);
       FileName := ExtractFileName(FileName);
       if not DirectoryExists(InitialDir) then InitialDir := StartDir+'Local_calc\';
       DefaultExt := '.bcl';
       Filter := 'NCK code calc file (*.bcl)|*.bcl|All files (*.*)|*.*';
       Options:=Options+[ofFileMustExist]-[ofHideReadOnly]
        +[ofNoChangeDir]-[ofNoLongNames]-[ofNoNetworkButton]-[ofHideReadOnly]
        -[ofOldStyleDialog]-[ofOverwritePrompt]+[ofPathMustExist]
        -[ofReadOnly]-[ofShareAware]-[ofShowHelp];
       Title:='Choose a NCK code calc file ';
      end;//with OpenDialog
      if OpenDialog.execute then begin
        Log.Lines.Add('Open file '+OpenDialog.FileName+' - Ok');
        ifi:=TIniFile.Create(OpenDialog.FileName);
        ImeiE.Text:=ifi.ReadString('Log','imei','123456789012345');
        hash:=Copy(ifi.ReadString('Log','hash',''),1,40);
        if hash ='' then begin Log.Lines.Add('Hash error... '); Log.Lines.Add(''); exit; end;
        if ImeiE.Text ='123456789012345' then begin Log.Lines.Add('Invalid imei... '); Log.Lines.Add(''); exit; end;
        SaltB.Clear;
        if FileExists (ChangeFileExt(OpenDialog.FileName,'.salt')) then begin
        SaltB.Items.LoadFromFile(ChangeFileExt(OpenDialog.FileName,'.salt'));
        Log.Lines.Add('Salt file found, loading... - Ok ');
        end else begin
        Log.Lines.Add('Generate Salt... ');
             Pr.MaxValue:=9999;
             Pr.Progress:=0;
        if RSalt.Checked then begin
           Log.Lines.Add('Use random method... ');
           for i:=0 to 9999 do SaltB.Items.Add(' ');
           for i:=0 to 9950 do begin
              s:=IntToStr(hex2dec(IntToHex(i,4)));
              if Length(s)<4 then while Length(s)< 4 do s:='0'+s;
fr:
              j:=Random(9999);
              if SaltB.Items.Strings[j]<>' ' then goto fr;
              SaltB.Items.Strings[j]:=s;
              Pr.Progress:=i;
           end;
           for i:=9951 to 9999 do begin
              s:=IntToStr(hex2dec(IntToHex(i,4)));
              if Length(s)<4 then while Length(s)< 4 do s:='0'+s;
              j:=0;
              while SaltB.Items.Strings[j]<>' ' do j:=j+1;
              SaltB.Items.Strings[j]:=s;
              Pr.Progress:=i;
           end;
           end else begin
             for i:=0 to 9999 do begin
              s:=IntToStr(hex2dec(IntToHex(i,4)));
              if Length(s)<4 then while Length(s)< 4 do s:='0'+s;
              SaltB.Items.Add(s);
             Pr.Progress:=i;
             end;
           end;
        SaltB.Items.SaveToFile(ChangeFileExt(OpenDialog.FileName,'.salt'));
        Log.Lines.Add('Curent salt file saved to '+ChangeFileExt(OpenDialog.FileName,'.salt')+' - Ok');
      end;
      end;
             Pr.Progress:=0;
             SaltB.ItemIndex:=0;
        Log.Lines.Add('');
      Stb.Enabled:=true;
end;

procedure TForm1.Rndmc;
begin
  OldX := GetTickCount;
end;

function TForm1.Rndc(I: Integer): word;
var  X: Integer;
begin
  X := (35789 * OldX + 13849) mod 65536;
  OldX := X;
  X := X mod I;
  Result:=X and $FFFF;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
      Randomize;
      StartDir:=GetCurrentDir+'\';
      Rndmc;
      Stb.Enabled:=false;
      term:=false;
end;

procedure TForm1.StbClick(Sender: TObject);
label trm;
var
all:integer;
begin
      if Stb.Caption='Stop' then begin term:=true; exit; end;
      LoadL.Enabled:=false;
      Stb.Caption:='Stop';
      Pr.MaxValue:=SaltB.Items.Count;
      while SaltB.Items.Count<>0 do begin

      Application.ProcessMessages;
      if term then goto trm;
      end;
trm:
      if SaltB.Items.Count<>0 then begin
      SaltB.Items.SaveToFile(ChangeFileExt(OpenDialog.FileName,'.salt'));
      Log.Lines.Add('Curent salt file saved... - Ok');
      end else begin
      Log.Lines.Add('Key not found... :(');
      Stb.Enabled:=false;
      end;
      Stb.Caption:='Start';
      term:=false;
      LoadL.Enabled:=true;
      Log.Lines.Add('');

end;

end.