{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

Author:       François PIETTE
Creation:     Aug 1997
Version:      2.31
Object:       Demo for TFtpClient object (RFC 959 implementation)
              It is a graphical FTP client program
              Compatible with Delphi 1, 2, 3, 4 and 5
EMail:        http://www.overbyte.be        francois.piette@overbyte.be
Support:      Use the mailing list twsocket@elists.org
              Follow "support" link at http://www.overbyte.be for subscription.
Legal issues: Copyright (C) 1997-2007 by François PIETTE
              Rue de Grady 24, 4053 Embourg, Belgium. Fax: +32-4-365.74.56
              <francois.piette@overbyte.be>

              This software is provided 'as-is', without any express or
              implied warranty.  In no event will the author be held liable
              for any  damages arising from the use of this software.

              Permission is granted to anyone to use this software for any
              purpose, including commercial applications, and to alter it
              and redistribute it freely, subject to the following
              restrictions:

              1. The origin of this software must not be misrepresented,
                 you must not claim that you wrote the original software.
                 If you use this software in a product, an acknowledgment
                 in the product documentation would be appreciated but is
                 not required.

              2. Altered source versions must be plainly marked as such, and
                 must not be misrepresented as being the original software.

              3. This notice may not be removed or altered from any source
                 distribution.

              4. You must register this software by sending a picture postcard
                 to the author. Use a nice stamp and mention your name, street
                 address, EMail address and any comment you like to say.

Updates:
Sep 13, 97    Added directory functions. Added button to show how to makes
              several transferts in one session
Sep 27, 97    Change identifiers names to be more standard with other sources
Jan 10, 98    Saved edit boxes content to an IniFile, added FileSize, Quote
              and RestartGet commands
Jan 25, 1998  Completely rewritten for new component version (Asynchronous)
Feb 02, 1998  V2.17 Added a checkbox to run the synchronous or asynchronous
              version of the component methods.
Feb 15, 1998  V2.18 Removed useless wait unit from the use clause.
              Added display of winsock information at startup.
Feb 22, 1998  V2.19 Added Append and AppendFile commands
Aug 21, 1998  V2.20 Added a comment in OnProgress event handler to warn user
              about CPU usage.
Dec 22, 1998  V2.21 Replaced DisplayFlag by DysplayFileFlag.
Oct 19, 1999  V2.22 Correctly display Winsock version
Nov 24, 1999  V2.23 Added Restart Put and NoAutoResumeAt.
Jan 28, 2000  V2.24 Added code to OnProgress event handler to update screen
              only once per second. This solve problem on fast LAN.
Jul 21, 2000  V2.25 Added two button to show TSream usage instead of files.
May 20, 2004  V2.26 Added FTPS support (require ICS-SSL to work)
Aug 24, 2004  V2.27 Fixed AuthSslButtonClick to automatically check the
              AuthSsl checkbox so that subsequent commands correctly request
              SSL for everything.
Oct 31, 2004  V2.28 Added account button
Nov 02, 2004  V2.29 Fixed problem displaying dir list when "Display Data"
              checkbox checked. Added persistance for all checkboxes.
Dec 19, 2004  V2.30 Added Trim() and similar for Delphi 1 compatibility.
Aug 31, 2006  V2.31 64-bit stream support for Delphi 6 up by A. Garrels.

 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
unit FtpTst1;

{$I ICSDEFS.INC} { Is STREAM64 defined? It is by default since D6! }

interface

uses
  SysUtils, WinTypes, WinProcs, Messages, Classes, Graphics, Controls,
  Forms, Dialogs, FtpCli, StdCtrls, IniFiles, ExtCtrls, WinSock, WSocket;

const
  FTPTstVersion      = 231;
  CopyRight : String = ' FtpTst (c) 1997-2007 F. Piette V2.31 ';

type
  TSyncCmd  = function : Boolean  of object;
  TAsyncCmd = procedure of object;
  TFtpBigInt = {$IFDEF STREAM64} Int64 {$ELSE} Longint {$ENDIF};

  TFtpReceiveForm = class(TForm)
    DisplayMemo: TMemo;
    FtpClient1: TFtpClient;
    Panel1: TPanel;
    ExitButton: TButton;
    OpenAsyncButton: TButton;
    QuitAsyncButton: TButton;
    CwdAsyncButton: TButton;
    UserAsyncButton: TButton;
    PassAsyncButton: TButton;
    ConnectAsyncButton: TButton;
    GetAsyncButton: TButton;
    ReceiveAsyncButton: TButton;
    AbortAsyncButton: TButton;
    DirAsyncButton: TButton;
    DirectoryAsyncButton: TButton;
    LsAsyncButton: TButton;
    ListAsyncButton: TButton;
    SystAsyncButton: TButton;
    SystemAsyncButton: TButton;
    FileSizeAsyncButton: TButton;
    SizeAsyncButton: TButton;
    MkdAsyncButton: TButton;
    MkdirAsyncButton: TButton;
    RmdAsyncButton: TButton;
    RmdirAsyncButton: TButton;
    RenAsyncButton: TButton;
    RenameAsyncButton: TButton;
    DeleAsyncButton: TButton;
    DeleteAsyncButton: TButton;
    PwdAsyncButton: TButton;
    QuoteAsyncButton: TButton;
    DoQuoteAsyncButton: TButton;
    PutAsyncButton: TButton;
    TransmitAsyncButton: TButton;
    TypeSetAsyncButton: TButton;
    RestGetAsyncButton: TButton;
    RestartGetAsyncButton: TButton;
    CDupAsyncButton: TButton;
    Panel2: TPanel;
    Label1: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Label2: TLabel;
    Label6: TLabel;
    HostNameEdit: TEdit;
    HostFileEdit: TEdit;
    UserNameEdit: TEdit;
    PassWordEdit: TEdit;
    DisplayCheckBox: TCheckBox;
    LocalFileEdit: TEdit;
    BinaryCheckBox: TCheckBox;
    HostDirEdit: TEdit;
    PortEdit: TEdit;
    InfoLabel: TLabel;
    StateLabel: TLabel;
    ClearButton: TButton;
    SyncCheckBox: TCheckBox;
    AppendFileAsyncButton: TButton;
    AppendAsyncButton: TButton;
    PassiveCheckBox: TCheckBox;
    Button1: TButton;
    RestPutAsyncButton: TButton;
    RestartPutAsyncButton: TButton;
    ResumeAtEdit: TEdit;
    Label7: TLabel;
    NoAutoResumeAtCheckBox: TCheckBox;
    TransmitUsingStreamButton: TButton;
    ReceiveUsingStreamButton: TButton;
    StressPutButton: TButton;
    AbortXferAsyncButton: TButton;
    Label8: TLabel;
    DataPortRangeStartEdit: TEdit;
    DataPortRangeEndEdit: TEdit;
    Label9: TLabel;
    AuthSslButton: TButton;
    AcctAsyncButton: TButton;
    Label10: TLabel;
    AccountEdit: TEdit;
    procedure ExitButtonClick(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure DisplayHandler(Sender: TObject; var Msg : String);
    procedure FtpClient1Progress(Sender: TObject; Count: Longint;
      var Abort: Boolean);
{$IFDEF STREAM64}
    procedure FtpClient1Progress64(Sender: TObject; Count: Int64;
      var Abort: Boolean);
{$ENDIF}
    procedure FormShow(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure OpenAsyncButtonClick(Sender: TObject);
    procedure FtpClient1RequestDone(Sender: TObject; RqType: TFtpRequest;
      Error: Word);
    procedure FtpClient1SessionConnected(Sender: TObject; Error: Word);
    procedure FtpClient1SessionClosed(Sender: TObject; Error: Word);
    procedure QuitAsyncButtonClick(Sender: TObject);
    procedure CwdAsyncButtonClick(Sender: TObject);
    procedure UserAsyncButtonClick(Sender: TObject);
    procedure PassAsyncButtonClick(Sender: TObject);
    procedure ConnectAsyncButtonClick(Sender: TObject);
    procedure FtpClient1StateChange(Sender: TObject);
    procedure GetAsyncButtonClick(Sender: TObject);
    procedure ReceiveAsyncButtonClick(Sender: TObject);
    procedure AbortAsyncButtonClick(Sender: TObject);
    procedure DirAsyncButtonClick(Sender: TObject);
    procedure DirectoryAsyncButtonClick(Sender: TObject);
    procedure LsAsyncButtonClick(Sender: TObject);
    procedure ListAsyncButtonClick(Sender: TObject);
    procedure SystAsyncButtonClick(Sender: TObject);
    procedure SystemAsyncButtonClick(Sender: TObject);
    procedure FileSizeAsyncButtonClick(Sender: TObject);
    procedure SizeAsyncButtonClick(Sender: TObject);
    procedure MkdAsyncButtonClick(Sender: TObject);
    procedure MkdirAsyncButtonClick(Sender: TObject);
    procedure RmdAsyncButtonClick(Sender: TObject);
    procedure RmdirAsyncButtonClick(Sender: TObject);
    procedure RenAsyncButtonClick(Sender: TObject);
    procedure RenameAsyncButtonClick(Sender: TObject);
    procedure DeleAsyncButtonClick(Sender: TObject);
    procedure DeleteAsyncButtonClick(Sender: TObject);
    procedure PwdAsyncButtonClick(Sender: TObject);
    procedure QuoteAsyncButtonClick(Sender: TObject);
    procedure DoQuoteAsyncButtonClick(Sender: TObject);
    procedure PutAsyncButtonClick(Sender: TObject);
    procedure TransmitAsyncButtonClick(Sender: TObject);
    procedure TypeSetAsyncButtonClick(Sender: TObject);
    procedure RestGetAsyncButtonClick(Sender: TObject);
    procedure RestartGetAsyncButtonClick(Sender: TObject);
    procedure CDupAsyncButtonClick(Sender: TObject);
    procedure ClearButtonClick(Sender: TObject);
    procedure AppendAsyncButtonClick(Sender: TObject);
    procedure AppendFileAsyncButtonClick(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure RestPutAsyncButtonClick(Sender: TObject);
    procedure RestartPutAsyncButtonClick(Sender: TObject);
    procedure TransmitUsingStreamButtonClick(Sender: TObject);
    procedure ReceiveUsingStreamButtonClick(Sender: TObject);
    procedure StressPutButtonClick(Sender: TObject);
    procedure AbortXferAsyncButtonClick(Sender: TObject);
    procedure AcctAsyncButtonClick(Sender: TObject);
    procedure FtpClient1DisplayFile(Sender: TObject; var Msg: String);
  private
    FIniFileName   : String;
    FInitialized   : Boolean;
    FLastProgress  : DWORD;
    FProgressCount : TFtpBigInt;
    FRunning       : Boolean;
    procedure DisplayFile(FileName : String);
    procedure ExecuteCmd(SyncCmd : TSyncCmd; ASyncCmd : TAsyncCmd);
    function SendFile : Boolean;
    procedure Display(const Msg: String);
  end;

const
  TEMP_FILE_NAME = 'FTPDIR.TXT';

var
  FtpReceiveForm: TFtpReceiveForm;

implementation

uses
  FtpTst2;

{$R *.DFM}
const
    SectionData   = 'Data';
    KeyHostName   = 'HostName';
    KeyUserName   = 'UserName';
    KeyPassWord   = 'PassWord';
    KeyAccount    = 'Account';
    KeyHostDir    = 'HostDir';
    KeyPort       = 'Port';
    KeyHostFile   = 'HostFile';
    KeyLocalFile  = 'LocalFile';
    KeyResumeAt   = 'ResumeAt';
    KeyPortStart  = 'DataPortRangeStart';
    KeyPortEnd    = 'DataPortRangeEnd';
    KeyPassive    = 'PassiveMode';
    KeyAuthSSL    = 'AuthSSLEnabled';
    KeyDisplay    = 'DisplayData';
    KeySync       = 'SyncMode';
    KeyNoResume   = 'NoAutoResumeAt';
    KeyBinary     = 'BinaryMode';
    SectionWindow = 'Window';
    KeyTop        = 'Top';
    KeyLeft       = 'Left';
    KeyWidth      = 'Width';
    KeyHeight     = 'Height';

function GetFileSize(const FileName: string): TFtpBigInt; forward;
{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
{$IFDEF VER80}  { Missing functions in Delphi 1 }
function TrimRight(Str : String) : String;
var
    i : Integer;
begin
    i := Length(Str);
    while (i > 0) and (Str[i] in [' ', #9]) do
        i := i - 1;
    Result := Copy(Str, 1, i);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
function TrimLeft(Str : String) : String;
var
    i : Integer;
begin
    if Str[1] <> ' ' then
        Result := Str
    else begin
        i := 1;
        while (i <= Length(Str)) and (Str[i] = ' ') do
            i := i + 1;
        Result := Copy(Str, i, Length(Str) - i + 1);
    end;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
function Trim(Str : String) : String;
begin
    Result := TrimLeft(TrimRight(Str));
end;
{$ENDIF}


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
{$IFNDEF VER80 }
{ To debug event driven programs, it is often handy to just use writeln to  }
{ write debug messages to the console. To get a console, just ask the       }
{ linker to build a console mode application. Then you'll get the default   }
{ console. The function below will make it the size you like...             }
procedure BigConsole(nCols, nLines : Integer);
var
    sc : TCoord;
    N  : DWord;
begin
    if not IsConsole then
        Exit;
    sc.x := nCols;
    sc.y := nLines;
    SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE), sc);
    SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),
                            BACKGROUND_BLUE or BACKGROUND_GREEN or
                            BACKGROUND_RED or BACKGROUND_INTENSITY);
    sc.x := 0;
    sc.y := 0;
    FillConsoleOutputAttribute(GetStdHandle(STD_OUTPUT_HANDLE),
                               BACKGROUND_BLUE or BACKGROUND_GREEN or
                               BACKGROUND_RED or BACKGROUND_INTENSITY,
                               nCols * nLines, sc, N);
end;
{$ENDIF}


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.FormCreate(Sender: TObject);
begin
{$IFNDEF VER80}
    BigConsole(80, 100);
{$ENDIF}
    DisplayMemo.Clear;
    InfoLabel.Caption  := '';
    StateLabel.Caption := '';
    FIniFileName := LowerCase(ExtractFileName(Application.ExeName));
    FIniFileName := Copy(FIniFileName, 1, Length(FIniFileName) - 3) + 'ini';
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.FormShow(Sender: TObject);
var
    IniFile : TIniFile;
    Data    : TWSAData;
begin
    if not FInitialized then begin
        FInitialized := TRUE;
        IniFile := TIniFile.Create(FIniFileName);
        HostNameEdit.Text  := IniFile.ReadString(SectionData, KeyHostName,
                                                 'ftp.simtel.net');
        PortEdit.Text      := IniFile.ReadString(SectionData, KeyPort,
                                                 'ftp');
        UserNameEdit.Text  := IniFile.ReadString(SectionData, KeyUserName,
                                                 'anonymous');
        PassWordEdit.Text  := IniFile.ReadString(SectionData, KeyPassWord,
                                                 'your.name@your.company.com');
        AccountEdit.Text   := IniFile.ReadString(SectionData, KeyAccount,
                                                 '');
        HostDirEdit.Text   := IniFile.ReadString(SectionData, KeyHostDir,
                                                 '/pub/simtelnet');
        HostFileEdit.Text  := IniFile.ReadString(SectionData, KeyHostFile,
                                                 'index.html');
        LocalFileEdit.Text := IniFile.ReadString(SectionData, KeyLocalFile,
                                                 'c:\temp\index.htm');
        ResumeAtEdit.Text  := IniFile.ReadString(SectionData, KeyResumeAt,
                                                 '0');
        DataPortRangeStartEdit.Text :=
                              IniFile.ReadString(SectionData, KeyPortStart,
                                                 '0');
        DataPortRangeEndEdit.Text :=
                              IniFile.ReadString(SectionData, KeyPortEnd,
                                                 '0');
        PassiveCheckBox.Checked        := Boolean(IniFile.ReadInteger(SectionData, KeyPassive , 0));
        DisplayCheckBox.Checked        := Boolean(IniFile.ReadInteger(SectionData, KeyDisplay , 0));
        SyncCheckBox.Checked           := Boolean(IniFile.ReadInteger(SectionData, KeySync    , 0));
        NoAutoResumeAtCheckBox.Checked := Boolean(IniFile.ReadInteger(SectionData, KeyNoResume, 0));
        BinaryCheckBox.Checked         := Boolean(IniFile.ReadInteger(SectionData, KeyBinary,   0));

        Width  := IniFile.ReadInteger(SectionWindow, KeyWidth,  Width);
        Height := IniFile.ReadInteger(SectionWindow, KeyHeight, Height);
        Top    := IniFile.ReadInteger(SectionWindow, KeyTop,    (Screen.Height - Height) div 2);
        Left   := IniFile.ReadInteger(SectionWindow, KeyLeft,   (Screen.Width - Width) div 2);

        IniFile.Free;

        { Display winsock info }
        Data := WinsockInfo;
        Display('Winsock version ' +
                IntToStr(LOBYTE(Data.wHighVersion)) + '.' +
                IntToStr(HIBYTE(Data.wHighVersion)));
        Display(StrPas(Data.szDescription));
        Display(StrPas(Data.szSystemStatus));
    end;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.FormClose(Sender: TObject;
  var Action: TCloseAction);
var
    IniFile : TIniFile;
begin
    IniFile := TIniFile.Create(FIniFileName);
    IniFile.WriteString(SectionData, KeyHostName,  HostNameEdit.Text);
    IniFile.WriteString(SectionData, KeyPort,      PortEdit.Text);
    IniFile.WriteString(SectionData, KeyUserName,  UserNameEdit.Text);
    IniFile.WriteString(SectionData, KeyPassWord,  PassWordEdit.Text);
    IniFile.WriteString(SectionData, KeyAccount,   AccountEdit.Text);
    IniFile.WriteString(SectionData, KeyHostDir,   HostDirEdit.Text);
    IniFile.WriteString(SectionData, KeyHostFile,  HostFileEdit.Text);
    IniFile.WriteString(SectionData, KeyLocalFile, LocalFileEdit.Text);
    IniFile.WriteString(SectionData, KeyResumeAt,  ResumeAtEdit.Text);
    IniFile.WriteString(SectionData, KeyPortStart, DataPortRangeStartEdit.Text);
    IniFile.WriteString(SectionData, KeyPortEnd,   DataPortRangeEndEdit.Text);
    IniFile.WriteInteger(SectionData, KeyPassive , Ord(PassiveCheckBox.Checked));
    IniFile.WriteInteger(SectionData, KeyDisplay , Ord(DisplayCheckBox.Checked));
    IniFile.WriteInteger(SectionData, KeySync    , Ord(SyncCheckBox.Checked   ));
    IniFile.WriteInteger(SectionData, KeyNoResume, Ord(NoAutoResumeAtCheckBox.Checked));
    IniFile.WriteInteger(SectionData, KeyBinary,   Ord(BinaryCheckBox.Checked));
    IniFile.WriteInteger(SectionWindow, KeyTop,    Top);
    IniFile.WriteInteger(SectionWindow, KeyLeft,   Left);
    IniFile.WriteInteger(SectionWindow, KeyWidth,  Width);
    IniFile.WriteInteger(SectionWindow, KeyHeight, Height);
    IniFile.Free;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
{$IFDEF VER80}
function DeleteFile(const FileName: string): Boolean;
var
   F : File of char;
begin
    Result := TRUE;
    try
        AssignFile(F, FileName);
        Erase(F);
    except
        Result := FALSE;
    end;
end;
{$ENDIF}


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.Display(const Msg : String);
var
    I : Integer;
begin
    DisplayMemo.Lines.BeginUpdate;
    try
        if DisplayMemo.Lines.Count > 200 then begin
            for I := 1 to 50 do
                DisplayMemo.Lines.Delete(0);
        end;
        DisplayMemo.Lines.Add(Msg);
    finally
        DisplayMemo.Lines.EndUpdate;
        {$IFNDEF VER80}
        SendMessage(DisplayMemo.Handle, EM_SCROLLCARET, 0, 0);
        {$ENDIF}
    end;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.DisplayHandler(Sender : TObject; var Msg : String);
begin
    Display(Msg);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.ExitButtonClick(Sender: TObject);
begin
    Close;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.FtpClient1Progress(Sender: TObject;
  Count: Longint; var Abort: Boolean);
begin
    FProgressCount := Count;
    { Be sure to update screen only once every second }
    if FLastProgress < GetTickCount then begin
        FLastProgress := GetTickCount + 1000;
        InfoLabel.Caption := IntToStr(FProgressCount);
        InfoLabel.Repaint;
    end;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
{$IFDEF STREAM64}
procedure TFtpReceiveForm.FtpClient1Progress64(Sender: TObject;
  Count: Int64; var Abort: Boolean);
begin
    FProgressCount := Count;
    { Be sure to update screen only once every second }
    if FLastProgress < GetTickCount then begin
        FLastProgress := GetTickCount + 1000;
        InfoLabel.Caption := IntToStr(FProgressCount);
        InfoLabel.Repaint;
    end;
end;
{$ENDIF}

{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.DisplayFile(FileName : String);
begin
    { When display on the fly, no file is generated }
    if DisplayCheckBox.Checked then
        Exit;
    try
        DirectoryForm.DirListBox.Items.LoadFromFile(FileName);
    except
        DirectoryForm.DirListBox.Clear;
    end;
    DirectoryForm.ShowModal;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.FtpClient1RequestDone(Sender: TObject;
  RqType: TFtpRequest; Error: Word);
begin
    Display('Request ' + IntToStr(Ord(RqType)) + ' Done.');
    Display('StatusCode = ' + IntToStr(FtpClient1.StatusCode));
    Display('LastResponse was : ''' + FtpClient1.LastResponse + '''');
    if Error = 0 then
        Display('No error')
    else
        Display('Error = ' + IntToStr(Error) +
                ' (' + FtpClient1.ErrorMessage + ')');

    { Display last progress value }
    InfoLabel.Caption := IntToStr(FProgressCount);

    if Error = 0 then begin
        case RqType of
        ftpDirAsync, ftpDirectoryAsync,
        ftpLsAsync,  ftpListAsync       : DisplayFile(TEMP_FILE_NAME);
        ftpSizeAsync                    : Display(
                                             'File size is ' +
                                             IntToStr(FtpClient1.SizeResult) +
                                             ' bytes' );
        ftpPwdAsync, ftpMkdAsync,
        ftpCDupAsync, ftpCwdAsync       : Display(
                                             'Directory is "' +
                                             FtpClient1.DirResult + '"');
        ftpGetAsync  : InfoLabel.Caption := InfoLabel.Caption + ' [' +
                       IntToStr(GetFileSize(FtpClient1.LocalFileName)) + ']';
        end;
    end;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.FtpClient1SessionConnected(Sender: TObject;
  Error: Word);
begin
    Display('Session Connected, error = ' + IntToStr(Error));
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.FtpClient1SessionClosed(Sender: TObject;
  Error: Word);
begin
    Display('Session Closed, error = ' + IntToStr(Error));
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.FtpClient1StateChange(Sender: TObject);
begin
    StateLabel.Caption := IntToStr(Ord(FtpClient1.State));
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
{ This procedure execute either the synchronous command or the asynchronous }
{ command depending on the SyncCheckBox state.                              }
{ All date from UI is copied to FTP component properties.                   }
procedure TFtpReceiveForm.ExecuteCmd(SyncCmd : TSyncCmd; ASyncCmd : TAsyncCmd);
begin
    Display('Executing Requested Command');
    { Initialize progress stuff }
    FLastProgress  := 0;
    FProgressCount := 0;

    FtpClient1.HostName           := HostNameEdit.Text;
    FtpClient1.Port               := PortEdit.Text;
    FtpClient1.DataPortRangeStart := StrToInt(Trim(DataPortRangeStartEdit.Text));
    FtpClient1.DataPortRangeEnd   := StrToInt(Trim(DataPortRangeEndEdit.Text));
    FtpClient1.UserName           := UserNameEdit.Text;
    FtpClient1.Password           := PasswordEdit.Text;
    FtpClient1.Account            := AccountEdit.Text;
    FtpClient1.HostDirName        := HostDirEdit.Text;
    FtpClient1.HostFileName       := HostFileEdit.Text;
    FtpClient1.LocalFileName      := LocalFileEdit.Text;
    FtpClient1.Passive            := PassiveCheckBox.Checked;
    FtpClient1.Binary             := BinaryCheckBox.Checked;
    FtpClient1.DisplayFileFlag    := DisplayCheckBox.Checked;
    FtpClient1.OnDisplay          := DisplayHandler;
{$IFDEF STREAM64}
    FtpClient1.OnProgress64       := FtpClient1Progress64;
    FtpClient1.OnProgress         := nil;
    { Note: In order to publish property OnProgress64 instead of the old }
    { 32-bit OnProgress event go to FtpCli.pas, uncomment                }
    { USE_ONPROGRESS64_ONLY and rebuild the ICS package.                 }
{$ENDIF}
    { For directory functions, we use a temporary file }
    if (@SyncCmd = @TFtpClient.Dir) or (@SyncCmd = @TFtpClient.Directory) or
       (@SyncCmd = @TFtpClient.Ls)  or (@SyncCmd = @TFtpClient.List) then begin
        DeleteFile(TEMP_FILE_NAME);
        FtpClient1.LocalFileName   := TEMP_FILE_NAME;
        FtpClient1.ResumeAt        := 0; 
    end
    else begin
    {$IFDEF STREAM64}
        FtpClient1.ResumeAt := StrToInt64(ResumeAtEdit.Text);
    {$ELSE}
        FtpClient1.ResumeAt := StrToInt(ResumeAtEdit.Text);
    {$ENDIF}
    end;

    if NoAutoResumeAtCheckBox.Checked then
        FtpClient1.Options     := FtpClient1.Options + [ftpNoAutoResumeAt]
    else
        FtpClient1.Options     := FtpClient1.Options - [ftpNoAutoResumeAt];
   
    if SyncCheckBox.Checked then begin
        if SyncCmd then
            Display('Command Success')
        else
            Display('Command Failure');
    end
    else
        ASyncCmd;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.OpenAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Open, FtpClient1.OpenAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.QuitAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Quit, FtpClient1.QuitAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.CwdAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Cwd, FtpClient1.CwdAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.UserAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.User, FtpClient1.UserAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.PassAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Pass, FtpClient1.PassAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.AcctAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Acct, FtpClient1.AcctAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.ConnectAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Connect, FtpClient1.ConnectAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.GetAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Get, FtpClient1.GetAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.ReceiveAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Receive, FtpClient1.ReceiveAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.AbortAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Abort, FtpClient1.AbortAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.DirAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Dir, FtpClient1.DirAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.DirectoryAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Directory, FtpClient1.DirectoryAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.LsAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Ls, FtpClient1.LsAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.ListAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.List, FtpClient1.ListAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.SystAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Syst, FtpClient1.SystAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.SystemAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.System, FtpClient1.SystemAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.FileSizeAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.FileSize, FtpClient1.FileSizeAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.SizeAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Size, FtpClient1.SizeAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.MkdAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Mkd, FtpClient1.MkdAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.MkdirAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.MkDir, FtpClient1.MkdirAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.RmdAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Rmd, FtpClient1.RmdAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.RmdirAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.RmDir, FtpClient1.RmDirAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.RenAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Ren, FtpClient1.RenAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.RenameAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Rename, FtpClient1.RenameAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.DeleAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Dele, FtpClient1.DeleAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.DeleteAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Delete, FtpClient1.DeleteAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.PwdAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Pwd, FtpClient1.PwdAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.QuoteAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Quote, FtpClient1.QuoteAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.DoQuoteAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.DoQuote, FtpClient1.DoQuoteAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.PutAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Put, FtpClient1.PutAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.TransmitAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Transmit, FtpClient1.TransmitAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.TypeSetAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.TypeSet, FtpClient1.TypeSetAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.RestGetAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.RestGet, FtpClient1.RestGetAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.RestartGetAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.RestartGet, FtpClient1.RestartGetAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.CDupAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.CDup, FtpClient1.CDupAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.ClearButtonClick(Sender: TObject);
begin
    DisplayMemo.Clear;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.AppendAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.Append, FtpClient1.AppendAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.AppendFileAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.AppendFile, FtpClient1.AppendFileAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.AbortXferAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.AbortXfer, FtpClient1.AbortXferAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.Button1Click(Sender: TObject);
var
    Count : Integer;
begin
    SyncCheckBox.Checked := TRUE;
    if not FtpClient1.Connected then begin
        FtpClient1.HostName        := HostNameEdit.Text;
        FtpClient1.Port            := PortEdit.Text;
        FtpClient1.UserName        := UserNameEdit.Text;
        FtpClient1.Password        := PasswordEdit.Text;
        FtpClient1.DisplayFileFlag := DisplayCheckBox.Checked;
        FtpClient1.OnDisplay       := DisplayHandler;
        ExecuteCmd(FtpClient1.Connect, FtpClient1.ConnectAsync);
        if Copy(FtpClient1.LastResponse, 1, 3) <> '230' then
            Exit;
    end;
    Count := 0;
    repeat
        DisplayMemo.Clear;
        Inc(Count);
        Display('Count=' + IntToStr(Count));
        FtpClient1.HostDirName     := HostDirEdit.Text;
        FtpClient1.HostFileName    := HostFileEdit.Text;
        FtpClient1.LocalFileName   := LocalFileEdit.Text;
        FtpClient1.Binary          := BinaryCheckBox.Checked;
        FtpClient1.Passive         := PassiveCheckBox.Checked;
        FtpClient1.DisplayFileFlag := DisplayCheckBox.Checked;
        FtpClient1.OnDisplay       := DisplayHandler;
        ExecuteCmd(FtpClient1.Put, FtpClient1.PutAsync);
    until Copy(FtpClient1.LastResponse, 1, 3) <> '226';
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.RestPutAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.RestPut, FtpClient1.RestPutAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.RestartPutAsyncButtonClick(Sender: TObject);
begin
    ExecuteCmd(FtpClient1.RestartPut, FtpClient1.RestartPutAsync);
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.TransmitUsingStreamButtonClick(Sender: TObject);
var
    MyStream : TStream;
begin
    MyStream := TFileStream.Create(LocalFileEdit.Text, fmOpenRead);
    try
        FtpClient1.HostName        := HostNameEdit.Text;
        FtpClient1.Port            := PortEdit.Text;
        FtpClient1.UserName        := UserNameEdit.Text;
        FtpClient1.PassWord        := PassWordEdit.Text;
        FtpClient1.HostDirName     := HostDirEdit.Text;
        FtpClient1.HostFileName    := HostFileEdit.Text;
        FtpClient1.LocalStream     := MyStream;
        FtpClient1.Binary          := BinaryCheckBox.Checked;
        FtpClient1.DisplayFileFlag := DisplayCheckBox.Checked;
        FtpClient1.OnDisplay       := DisplayHandler;
        if ResumeAtEdit.Text > '' then
            FtpClient1.ResumeAt    := StrToInt(ResumeAtEdit.Text);
        FtpClient1.Transmit;
    finally
        FtpClient1.LocalStream     := nil;
        MyStream.Free;
    end;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.ReceiveUsingStreamButtonClick(Sender: TObject);
var
    MyStream : TStream;
begin
    MyStream := TFileStream.Create(LocalFileEdit.Text, fmCreate);
    try
        FtpClient1.HostName        := HostNameEdit.Text;
        FtpClient1.Port            := PortEdit.Text;
        FtpClient1.UserName        := UserNameEdit.Text;
        FtpClient1.PassWord        := PassWordEdit.Text;
        FtpClient1.HostDirName     := HostDirEdit.Text;
        FtpClient1.HostFileName    := HostFileEdit.Text;
        FtpClient1.LocalStream     := MyStream;
        FtpClient1.Binary          := BinaryCheckBox.Checked;
        FtpClient1.DisplayFileFlag := DisplayCheckBox.Checked;
        FtpClient1.OnDisplay       := DisplayHandler;
        if ResumeAtEdit.Text > '' then
            FtpClient1.ResumeAt    := StrToInt(ResumeAtEdit.Text);
        FtpClient1.Receive;
    finally
        FtpClient1.LocalStream     := nil;
        MyStream.Free;
    end;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
function GetFileSize(const FileName : String) : TFtpBigInt;
var
    SR : TSearchRec;
{$IFDEF STREAM64}
    TempSize: TULargeInteger ;  // 64-bit integer record
{$ENDIF}
begin
    if FindFirst(FileName, faReadOnly or faHidden or
                 faSysFile or faArchive, SR) = 0 then begin
{$IFDEF STREAM64}
        TempSize.LowPart  := SR.FindData.nFileSizeLow;
        TempSize.HighPart := SR.FindData.nFileSizeHigh;
        Result := TempSize.QuadPart;
{$ELSE}
        Result := SR.Size;
{$ENDIF}
        Sysutils.FindClose(SR);
    end
    else
        Result := -1;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
function TFtpReceiveForm.SendFile : Boolean;
var
    LocalSize : LongInt;
begin
    try
        FtpClient1.Abort;  { Whatever occured, abort ! }
        FtpClient1.LocalFileName := LocalFileEdit.Text;
        FtpClient1.HostDirName   := HostDirEdit.Text;
        FtpClient1.HostFileName  := HostFileEdit.Text;
        FtpClient1.HostName      := HostNameEdit.Text;
        FtpClient1.Port          := PortEdit.Text;
        FtpClient1.UserName      := UserNameEdit.Text;
        FtpClient1.Password      := PassWordEdit.Text;
        FtpClient1.Passive       := PassiveCheckBox.Checked;
        FtpClient1.Binary        := BinaryCheckBox.Checked;
        FtpClient1.Timeout       := 30;
        FtpClient1.ShareMode     := ftpShareDenyNone;
        if not FtpClient1.Connect then
            raise Exception.Create('FtpClient1.Connect failed: ' + FtpClient1.ErrorMessage);
        if FtpClient1.HostDirName <> '' then begin
            if not FtpClient1.Cwd then
                raise Exception.Create('FtpClient1.Cwd failed: ' + FtpClient1.ErrorMessage);
        end;
        if not FtpClient1.TypeSet then
            raise Exception.Create('FtpClient1.TypeSet failed: ' + FtpClient1.ErrorMessage);
        if not FtpClient1.Put then
            raise Exception.Create('FtpClient1.Put failed: ' + FtpClient1.ErrorMessage);
        if FtpClient1.StatusCode <> 226 then
            raise Exception.Create('FtpClient1.Put failed: ' + FtpClient1.LastResponse);
        if not FtpClient1.Size then
            raise Exception.Create('FtpClient1.Size failed: ' + FtpClient1.ErrorMessage);
        LocalSize := GetFileSize(FtpClient1.LocalFileName);
        Result    := (FtpClient1.SizeResult = LocalSize);
        if not Result then
            Display('Incorrect file size on server (S=' +
                    IntToStr(FtpClient1.SizeResult) + ' L=' +
                    IntToStr(LocalSize) + ')');
        if not FtpClient1.Quit then
            raise Exception.Create('FtpClient1.Quit failed: ' + FtpClient1.ErrorMessage);
    except
        on E:Exception do begin
            Display('Exception ' + E.ClassName + ': ' + E.Message);
            Result := FALSE;
        end;
    end;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.StressPutButtonClick(Sender: TObject);
var
    Count : Integer;
begin
    if FRunning then begin
        FRunning := FALSE;
        Display('Stress Put interrupted.');
        StressPutButton.Caption := 'Stress Put';
        Exit;
    end;
    FRunning := TRUE;
    try
        Display('Stress Put started.');
        StressPutButton.Caption := 'STOP';
        Count := 0;
        while FRunning and (not Application.Terminated) do begin
            Inc(Count);
            Display('STRESS COUNT = ' + IntToStr(Count));
            if not SendFile then
                break;
            Application.ProcessMessages;
        end;
    finally
        FRunning := FALSE;
        Display('Stress Put finished.');
        StressPutButton.Caption := 'Stress Put';
    end;
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}
procedure TFtpReceiveForm.FtpClient1DisplayFile(
    Sender: TObject;
    var Msg: String);
begin
    Display('DATA: "' + Msg + '"');
end;


{* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *}

end.

