{
  $Project$
  $Workfile$
  $Revision$
  $DateUTC$
  $Id$

  This file is part of the Indy (Internet Direct) project, and is offered
  under the dual-licensing agreement described on the Indy website.
  (http://www.indyproject.org/)

  Copyright:
   (c) 1993-2005, Chad Z. Hower and the Indy Pit Crew. All rights reserved.
}
{
  $Log$
}
{
  Rev 1.18    12/10/04 1:13:34 PM  RLebeau
  FormatDateTime() fixes.  Was using 'mm' instead of 'nn' for minutes.

  Rev 1.17    10/26/2004 9:36:26 PM  JPMugaas
  Updated ref.

  Rev 1.16    10/26/2004 9:19:14 PM  JPMugaas
  Fixed references.

  Rev 1.15    10/1/2004 6:17:12 AM  JPMugaas
  Removed some dead code.

  Rev 1.14    6/27/2004 1:45:36 AM  JPMugaas
  Can now optionally support LastAccessTime like Smartftp's FTP Server could.
  I also made the MLST listing object and parser support this as well.

  Rev 1.13    6/11/2004 9:34:44 AM  DSiders
  Added "Do not Localize" comments.

  Rev 1.12    4/19/2004 5:06:02 PM  JPMugaas
  Class rework Kudzu wanted.

  Rev 1.11    2004.02.03 5:45:34 PM  czhower
  Name changes

  Rev 1.10    24/01/2004 19:18:48  CCostelloe
  Cleaned up warnings

  Rev 1.9    1/4/2004 12:09:54 AM  BGooijen
  changed System.Delete to IdDelete

  Rev 1.8    11/26/2003 6:23:44 PM  JPMugaas
  Quite a number of fixes for recursive dirs and a few other things that
  slipped my mind.

  Rev 1.7    10/19/2003 2:04:02 PM  DSiders
  Added localization comments.

  Rev 1.6    3/11/2003 07:36:00 PM  JPMugaas
  Now reports permission denied in subdirs when doing recursive listts in Unix
  export.

  Rev 1.5    3/9/2003 12:01:26 PM  JPMugaas
  Now can report errors in recursive lists.
  Permissions work better.

  Rev 1.4    3/3/2003 07:18:34 PM  JPMugaas
  Now honors the FreeBSD -T flag and parses list output from a program using
  it.  Minor changes to the File System component.

  Rev 1.3    2/26/2003 08:57:10 PM  JPMugaas
  Bug fix.  The owner and group should be left-justified.

  Rev 1.2    2/24/2003 07:24:00 AM  JPMugaas
  Now honors more Unix switches just like the old code and now work with the
  NLIST command when emulating Unix.  -A switch support added.  Switches are
  now in constants.

  Rev 1.1    2/23/2003 06:19:42 AM  JPMugaas
  Now uses Classes instead of classes.

  Rev 1.0    2/21/2003 06:51:46 PM  JPMugaas
  FTP Directory list output object for the FTP server.
}

unit IdFTPListOutput;

interface

{$i IdCompilerDefines.inc}

uses
  Classes,
  IdGlobal,
  IdFTPList;

type
  // we can't use the standard FTP MLSD option types in the FTP Server
  // because we support some minimal things that the user can't set.
  // We have the manditory items to make it harder for the user to mess up.

  TIdFTPFactOutput = (ItemType, Modify, Size, Perm, Unique, UnixMODE, UnixOwner,
    UnixGroup, CreateTime, LastAccessTime, WinAttribs,WinDriveType,WinDriveLabel);

  TIdFTPFactOutputs = set of TIdFTPFactOutput;

  TIdDirOutputFormat = (doUnix, doWin32, doEPLF);

  TIdFTPListOutputItem = class(TIdFTPListItem)
  protected
    FLinkCount: Integer;
    FGroupName: string;
    FOwnerName : String;
    FLinkedItemName : string;
    FNumberBlocks : Integer;
    FInode : Integer;
    FLastAccessDate: TDateTime;
    FLastAccessDateGMT: TDateTime;
    FCreationDate: TDateTime;
    FCreationDateGMT : TDateTime;
    //Unique ID for an item to prevent yourself from downloading something twice
    FUniqueID : String;
    //MLIST things
    FMLISTPermissions : String;

    FUnixGroupPermissions: string;
    FUnixOwnerPermissions: string;
    FUnixOtherPermissions: string;
    FUnixinode : Integer;

    FWinAttribs : UInt32;
    //an error has been reported in the DIR listing itself for an item
    FDirError : Boolean;

    FWinDriveType : Integer;
    FWinDriveLabel : String;
  public
    constructor Create(AOwner: TCollection); override;
    property NumberBlocks : Integer read FNumberBlocks write FNumberBlocks;
    property Inode : Integer read FInode write FInode;
    //Last Access time values are for MLSD data output and can be returned by the MLST command
    property LastAccessDate: TDateTime read FLastAccessDate write FLastAccessDate;
    property LastAccessDateGMT : TDateTime read FLastAccessDateGMT write FLastAccessDateGMT;
    //Creation time values are for MLSD data output and can be returned by the MLST command
    property CreationDate: TDateTime read FCreationDate write FCreationDate;
    property CreationDateGMT : TDateTime read FCreationDateGMT write FCreationDateGMT;
    // If this is not blank, you can use this as a unique identifier for an item to prevent
    // yourself from downloading the same item twice (which is not easy to see with some
    // some FTP sites where symbolic links or similar things are used.
    //Valid only with EPLF and MLST
    property UniqueID : string read FUniqueID write FUniqueID;
    //Creation time values are for MLSD data output and can be returned by the
    //the MLSD parser in some cases
    property ModifiedDateGMT;
    //Windows NT File Attributes (just like what is reported by RaidenFTPD
    //BlackMoon FTP Server, and Serv-U
    //On the server side, you deal with it as a number right from the Win32 FindFirst,
    //FindNext functions.  Easy
    property WinAttribs : UInt32 read FWinAttribs write FWinAttribs;

    property WinDriveType : Integer read FWinDriveType write FWinDriveType;
    property WinDriveLabel : String read FWinDriveLabel write FWinDriveLabel;
    //MLIST Permissions
    property MLISTPermissions : string read FMLISTPermissions write FMLISTPermissions;
    property UnixOwnerPermissions: string read FUnixOwnerPermissions write FUnixOwnerPermissions;
    property UnixGroupPermissions: string read FUnixGroupPermissions write FUnixGroupPermissions;
    property UnixOtherPermissions: string read FUnixOtherPermissions write FUnixOtherPermissions;
    property LinkCount: Integer read FLinkCount write FLinkCount;
    property OwnerName: string read FOwnerName write FOwnerName;
    property GroupName: string read FGroupName write FGroupName;
    property LinkedItemName : string read FLinkedItemName write FLinkedItemName;
    property DirError : Boolean read FDirError write FDirError;
  end;

  TIdFTPListOutput = class(TCollection)
  protected
    FSwitches : String;
    FOutput : String;
    FDirFormat : TIdDirOutputFormat;
    FExportTotalLine : Boolean;
    function GetLocalModTime(AItem : TIdFTPListOutputItem) : TDateTime; virtual;
    function HasSwitch(const ASwitch: String): Boolean;
    function UnixItem(AItem : TIdFTPListOutputItem) : String; virtual;
    function Win32Item(AItem : TIdFTPListOutputItem) : String; virtual;
    function EPLFItem(AItem : TIdFTPListOutputItem) : String; virtual;
    function NListItem(AItem : TIdFTPListOutputItem) : String; virtual;
    function MListItem(AItem : TIdFTPListOutputItem; AMLstOpts : TIdFTPFactOutputs) : String; virtual;
    procedure InternelOutputDir(AOutput : TStrings; ADetails : Boolean = True); virtual;
    function UnixINodeOutput(AItem : TIdFTPListOutputItem) : String;
    function UnixBlocksOutput(AItem : TIdFTPListOutputItem) : String;
    function UnixGetOutputOwner(AItem : TIdFTPListOutputItem) : String;
    function UnixGetOutputGroup(AItem : TIdFTPListOutputItem) : String;
    function UnixGetOutputOwnerPerms(AItem : TIdFTPListOutputItem) : String;
    function UnixGetOutputGroupPerms(AItem : TIdFTPListOutputItem) : String;
    function UnixGetOutputOtherPerms(AItem : TIdFTPListOutputItem) : String;

    function GetItems(AIndex: Integer): TIdFTPListOutputItem;
    procedure SetItems(AIndex: Integer; const AValue: TIdFTPListOutputItem);

  public
    function Add: TIdFTPListOutputItem;
    constructor Create; reintroduce;
    function IndexOf(AItem: TIdFTPListOutputItem): Integer;
    property Items[AIndex: Integer]: TIdFTPListOutputItem read GetItems write SetItems; default;

    procedure LISTOutputDir(AOutput : TStrings); virtual;
    procedure MLISTOutputDir(AOutput : TStrings; AMLstOpts : TIdFTPFactOutputs); virtual;
    procedure NLISTOutputDir(AOutput : TStrings); virtual;

    property DirFormat : TIdDirOutputFormat read FDirFormat write FDirFormat;
    property Switches : String read FSwitches write FSwitches;
    property Output : String read FOutput write FOutput;
    property ExportTotalLine : Boolean read FExportTotalLine write FExportTotalLine;
  end;

const
  DEF_FILE_OWN_PERM = 'rw-';                {do not localize}
  DEF_FILE_GRP_PERM = DEF_FILE_OWN_PERM;
  DEF_FILE_OTHER_PERM = 'r--';              {do not localize}
  DEF_DIR_OWN_PERM = 'rwx';                 {do not localize}
  DEF_DIR_GRP_PERM = DEF_DIR_OWN_PERM;
  DEF_DIR_OTHER_PERM = 'r-x';               {do not localize}
  DEF_OWNER = 'root';                       {do not localize}

{NLIST and LIST switches - based on /bin/ls }
{
  Note that the standard Unix form started simply by Unix
  FTP deamons piping output from the /bin/ls program for both
  the NLIST and LIST FTP commands.  The standard /bin/ls
  program has several standard switches that allow the output
  to be customized.  For our output, we wish to emulate this behavior.

  Microsoft IIS even honors a subset of these switches dealing sort order
  and recursive listings.   It does not honor some sort-by-switches although
  we honor those in Win32 (hey, we did MS one better, not that it says much though.

}
const
  {format switches - used by Unix mode only}
  SWITCH_COLS_ACCROSS = 'x';
  SWITCH_COLS_DOWN = 'C';
  SWITCH_ONE_COL = '1';
  SWITCH_ONE_DIR = 'f';
  SWITCH_COMMA_STREAM = 'm';
  SWITCH_LONG_FORM = 'l';
  {recursive for both Win32 and Unix forms}
  SWITCH_RECURSIVE = 'R';
  {sort switches - used both by Win32 and Unix forms}
  SWITCH_SORT_REVERSE = 'r';
  SWITCH_SORTBY_MTIME = 't';
  SWITCH_SORTBY_CTIME = 'u';
  SWITCH_SORTBY_EXT = 'X';
  SWITCH_SORTBY_SIZE = 'S';
  {Output switches for Unix mode only}
  SWITCH_CLASSIFY = 'F';
  //
{     -F  Put aslash (/) aftereach filename if the file is a directory, an
  asterisk (*) if the file is executable, an equal sign(=) if the
  file is an AF_UNIX address family socket, andan ampersand (@) if
  the file is asymbolic link.Unless the -H option isalso used,
  symbolic links are followed to see ifthey might be adirectory; see
  above.

  From:
  http://www.mcsr.olemiss.edu/cgi-bin/man-cgi?ls+1   }
  SWITCH_SLASHDIR = 'p';
  SWITCH_QUOTEDNAME = 'Q';
  SWITCH_PRINT_BLOCKS = 's';
  SWITCH_PRINT_INODE = 'i';
  SWITCH_SHOW_ALLPERIOD = 'a'; //show all entries even ones with a pariod starting the filename/hidden
  //note that anything starting with a period is shown except for the .. and . entries for security reasons
  SWITCH_HIDE_DIRPOINT = 'A'; //hide the "." and ".." entries
  SWITCH_BOTH_TIME_YEAR = 'T'; //This is used by FTP Voyager with a Serv-U FTP Server to both
  //a time and year in the FTP list.  Note that this does conflict with a ls -T flag used to specify a column size
  //on Linux but in FreeBSD, the -T flag is also honored.
implementation

uses
  //facilitate inlining only.
  IdException,
  {$IFDEF DOTNET}
    {$IFDEF USE_INLINE}
  System.IO,
    {$ENDIF}
  {$ENDIF}
  {$IFDEF VCL_XE3_OR_ABOVE}
    {$IFNDEF NEXTGEN}
  System.Contnrs,
    {$ENDIF}
  System.Types,
  {$ENDIF}
  {$IFDEF USE_VCL_POSIX}
  Posix.SysTime,
  {$ENDIF}
  IdContainers, IdFTPCommon, IdGlobalProtocols, IdStrings, SysUtils;

type
  {$IFDEF HAS_GENERICS_TObjectList}
  TDirEntry = class;
  TDirEntryList = TIdObjectList<TDirEntry>;
  {$ELSE}
  // TODO: flesh out to match TIdObjectList<TDirEntry> for non-Generics compilers
  TDirEntryList = TIdObjectList;
  {$ENDIF}

  TDirEntry = class(TObject)
  protected
    FPathName : String;
    FDirListItem : TIdFTPListOutputItem;
    FSubDirs : TDirEntryList;
    FFileList : TIdBubbleSortStringList;

  public
    constructor Create(const APathName : String; ADirListItem : TIdFTPListOutputItem);
    destructor Destroy; override;
//    procedure Sort(ACompare: TIdSortCompare;const Recurse : Boolean = True);
    procedure SortAscendFName;
    procedure SortDescendFName;
    procedure SortAscendMTime;
    procedure SortDescendMTime;
    procedure SortAscendSize;
    procedure SortDescendSize;
    procedure SortAscendFNameExt;
    procedure SortDescendFNameExt;
    function AddSubDir(const APathName : String; ADirEnt : TIdFTPListOutputItem) : Boolean;
    function AddFileName(const APathName : String; ADirEnt : TIdFTPListOutputItem) : Boolean;
    property SubDirs : TDirEntryList read FSubDirs;
    property FileList : TIdBubbleSortStringList read FFileList;
    property PathName : String read FPathName;
    property DirListItem : TIdFTPListOutputItem read FDirListItem;
  end;

function RawSortAscFName(AItem1, AItem2: TIdFTPListItem; const ASubDirs : Boolean = True): Integer;
var
{
> 0 (positive)  Item1 is less than Item2
= 0             Item1 is equal to Item2
< 0 (negative)  Item1 is greater than Item2
}
  LTmpPath1, LTmpPath2 : String;
  LPath1Dot, LPath2Dot : Boolean;
begin
  LTmpPath1 := IndyGetFileName(AItem1.FileName);
  LTmpPath2 := IndyGetFileName(AItem2.FileName);

  //periods are always greater then letters in dir lists
  LPath1Dot := TextStartsWith(LTmpPath1, '.');
  LPath2Dot := TextStartsWith(LTmpPath2, '.');

  if LPath1Dot and LPath2Dot then begin
    if (LTmpPath1 = CUR_DIR) and (LTmpPath2 = PARENT_DIR) then begin
      Result := 1;
      Exit;
    end;
    if (LTmpPath2 = CUR_DIR) and (LTmpPath1 = PARENT_DIR) then begin
      Result := -1;
      Exit;
    end;
    if (LTmpPath2 = CUR_DIR) and (LTmpPath1 = CUR_DIR) then begin
      Result := 0;
      Exit;
    end;
    if (LTmpPath2 = PARENT_DIR) and (LTmpPath1 = PARENT_DIR) then begin
      Result := 0;
      Exit;
    end;
  end;
  if LPath2Dot and (not LPath1Dot) then begin
    Result := -1;
    Exit;
  end;
  if LPath1Dot and (not LPath2Dot) then begin
    Result := 1;
    Exit;
  end;
  Result := -IndyCompareStr(LTmpPath1, LTmpPath2);
end;

function RawSortDescFName(AItem1, AItem2: TIdFTPListItem): Integer;
begin
  Result := -RawSortAscFName(AItem1, AItem2);
end;

function RawSortAscFNameExt(AItem1, AItem2: TIdFTPListItem; const ASubDirs : Boolean = True): Integer;
var
{
> 0 (positive)  Item1 is less than Item2
= 0             Item1 is equal to Item2
< 0 (negative)  Item1 is greater than Item2
}
  LTmpPath1, LTmpPath2 : String;
begin
  LTmpPath1 := ExtractFileExt(AItem1.FileName);
  LTmpPath2 := ExtractFileExt(AItem2.FileName);
  Result := -IndyCompareStr(LTmpPath1, LTmpPath2);
  if Result = 0 then begin
    Result := RawSortAscFName(AItem1, AItem2);
  end;
end;

function RawSortDescFNameExt(AItem1, AItem2: TIdFTPListItem): Integer;
begin
  Result := -RawSortAscFNameExt(AItem1, AItem2, False);
end;

function RawSortAscMTime(AItem1, AItem2: TIdFTPListItem): Integer;
{
> 0 (positive)  Item1 is less than Item2
  0             Item1 is equal to Item2
< 0 (negative)  Item1 is greater than Item2
}

begin
  if AItem1.ModifiedDate < AItem2.ModifiedDate then begin
    Result := -1;
  end
  else if AItem1.ModifiedDate > AItem2.ModifiedDate then begin
    Result := 1;
  end
  else begin
    Result := RawSortAscFName(AItem1, AItem2);
  end;
end;

function RawSortDescMTime(AItem1, AItem2: TIdFTPListItem): Integer;
begin
  Result := -RawSortAscMTime(AItem1, AItem2);
end;

function RawSortAscSize(AItem1, AItem2: TIdFTPListItem; const ASubDirs : Boolean = True): Integer;
var
  LSize1, LSize2 : Int64;
{
> 0 (positive)  Item1 is less than Item2
= 0             Item1 is equal to Item2
< 0 (negative)  Item1 is greater than Item2
}
begin
  LSize1 := AItem1.Size;
  LSize2 := AItem2.Size;
  if TIdFTPListOutput(AItem1.Collection).DirFormat = doUnix then begin
    if AItem1.ItemType = ditDirectory then begin
      LSize1 := UNIX_DIR_SIZE;
    end;
    if AItem2.ItemType = ditDirectory then begin
      LSize2 := UNIX_DIR_SIZE;
    end;
  end;
  if LSize1 < LSize2 then begin
    Result := -1;
  end
  else if LSize1 > LSize2 then begin
    Result := 1;
  end else begin
    Result := RawSortAscFName (AItem1, AItem2);
  end;
end;

function RawSortDescSize(AItem1, AItem2: TIdFTPListItem): Integer;
begin
  Result := -RawSortAscSize(AItem1, AItem2, False);
end;

{DirEntry objects}
function DESortAscFName(AItem1, AItem2: TDirEntry): Integer;
begin
  Result := -IndyCompareStr(AItem1.PathName, AItem2.PathName);
end;

function DESortAscMTime(AItem1, AItem2: TDirEntry): Integer;
var
  L1, L2 : TIdFTPListItem;
{
> 0 (positive)  Item1 is less than Item2
= 0             Item1 is equal to Item2
< 0 (negative)  Item1 is greater than Item2
}
begin
  L1 := AItem1.DirListItem;
  L2 := AItem2.DirListItem;
  if L1.ModifiedDate > L2.ModifiedDate then begin
    Result := -1;
  end
  else if L1.ModifiedDate < L2.ModifiedDate then begin
    Result := 1;
  end else begin
    Result := DESortAscFName(AItem1, AItem2);
  end;
end;

function DESortDescMTime(AItem1, AItem2: TDirEntry): Integer;
begin
  Result := -DESortAscMTime(AItem1, AItem2);
end;

function DESortDescFName(AItem1, AItem2: TDirEntry): Integer;
begin
  Result := -DESortAscFName(AItem1, AItem2);
end;

{stringlist objects}
function StrSortAscMTime(List: TStringList; Index1, Index2: Integer): Integer;
begin
  Result := RawSortAscMTime(
    TIdFTPListItem(List.Objects[Index1]),
    TIdFTPListItem(List.Objects[Index2]));
end;

function StrSortDescMTime(List: TStringList; Index1, Index2: Integer): Integer;
begin
  Result := RawSortDescMTime(
    TIdFTPListItem(List.Objects[Index1]),
    TIdFTPListItem(List.Objects[Index2]));
end;

function StrSortAscSize(List: TStringList; Index1, Index2: Integer): Integer;
begin
  Result := RawSortAscSize(
    TIdFTPListItem(List.Objects[Index1]),
    TIdFTPListItem(List.Objects[Index2]));
end;

function StrSortDescSize(List: TStringList; Index1, Index2: Integer): Integer;
begin
  Result := RawSortDescSize(
    TIdFTPListItem(List.Objects[Index1]),
    TIdFTPListItem(List.Objects[Index2]));
end;

function StrSortAscFName(List: TStringList; Index1, Index2: Integer): Integer;
begin
  Result := RawSortAscFName(
    TIdFTPListItem(List.Objects[Index1]),
    TIdFTPListItem(List.Objects[Index2]));
end;

function StrSortDescFName(List: TStringList; Index1, Index2: Integer): Integer;
begin
  Result := RawSortDescFName(
    TIdFTPListItem(List.Objects[Index1]),
    TIdFTPListItem(List.Objects[Index2]));
end;

function StrSortAscFNameExt(List: TStringList; Index1, Index2: Integer): Integer;
begin
  Result := RawSortAscFNameExt(
    TIdFTPListItem(List.Objects[Index1]),
    TIdFTPListItem(List.Objects[Index2]));
end;

function StrSortDescFNameExt(List: TStringList; Index1, Index2: Integer): Integer;
begin
  Result := RawSortDescFNameExt(
    TIdFTPListItem(List.Objects[Index1]),
    TIdFTPListItem(List.Objects[Index2]));
end;

{ TIdFTPListOutput }

function TIdFTPListOutput.Add: TIdFTPListOutputItem;
begin
  Result := TIdFTPListOutputItem(inherited Add);
end;

constructor TIdFTPListOutput.Create;
begin
  inherited Create(TIdFTPListOutputItem);
  FDirFormat := doUnix;
end;

function TIdFTPListOutput.EPLFItem(AItem: TIdFTPListOutputItem): String;
var
  LFileName : String;
begin
  LFileName := IndyGetFileName(AItem.FileName);
  if AItem.ModifiedDateGMT > EPLF_BASE_DATE then begin
    Result := '+m' + GMTDateTimeToEPLFDate(AItem.ModifiedDateGMT);
  end
  else if AItem.ModifiedDate > EPLF_BASE_DATE then begin
    Result := '+m'+LocalDateTimeToEPLFDate(AItem.ModifiedDate);
  end else begin
    Result := '';
  end;
  if AItem.ItemType = ditFile then begin
    Result := Result + ',r';
  end else begin
    Result := Result + ',/';
  end;
  Result := Result + ',s' + IntToStr(AItem.Size);
  Result := Result + #9 + LFileName;
end;

function TIdFTPListOutput.GetItems(AIndex: Integer): TIdFTPListOutputItem;
begin
  Result := TIdFTPListOutputItem(inherited GetItem(AIndex));
end;

function TIdFTPListOutput.GetLocalModTime(AItem: TIdFTPListOutputItem): TDateTime;
begin
  if AItem.ModifiedDateGMT <> 0 then begin
    Result := AItem.ModifiedDateGMT - TimeZoneBias;
  end else begin
    Result := AItem.ModifiedDate;
  end;
end;

function TIdFTPListOutput.HasSwitch(const ASwitch: String): Boolean;
begin
  Result := IndyPos(ASwitch, Switches) > 0;
end;

function TIdFTPListOutput.IndexOf(AItem: TIdFTPListOutputItem): Integer;
var
  i : Integer;
begin               
  Result := -1;
  for i := 0 to Count - 1 do begin
    if AItem = Items[i] then begin
      Result := i;
      Exit;
    end;
  end;
end;

procedure TIdFTPListOutput.InternelOutputDir(AOutput: TStrings; ADetails: Boolean);
type
  TIdDirOutputType = (doColsAccross, doColsDown, doOneCol, doOnlyDirs, doComma, doLong);
var
  i : Integer;
  //note we use this for sorting pathes with recursive dirs
  LRootPath : TDirEntry;
  LShowNavSym : BOolean;

  function DetermineOp : TIdDirOutputType;
  //we do things this way because the last switch in a mutually exclusive set
  //always takes precidence over the others.
  var
    LStopScan : Boolean;
    li : Integer;
  begin
    if ADetails then begin
      Result := doLong;
    end else begin
      Result := doOneCol;
    end;
    if DirFormat <> doUnix then begin
      Exit;
    end;
    LStopScan := False;
    for li := Length(Switches) downto 1 do begin
      case Switches[li] of
        SWITCH_COLS_ACCROSS :
          begin
            Result := doColsAccross;
            LStopScan := True;
          end;
        SWITCH_COLS_DOWN :
          begin
            Result := doColsDown;
            LStopScan := True;
          end;
        SWITCH_ONE_COL :
          begin
            Result := doOneCol;
            LStopScan := True;
          end;
        SWITCH_ONE_DIR :
          begin
            Result := doOnlyDirs;
            LStopScan := True;
          end;
        SWITCH_COMMA_STREAM :
          begin
            Result := doComma;
            LStopScan := True;
          end;
        SWITCH_LONG_FORM :
          begin
            Result := doLong;
            LStopScan := True;
          end;
      end;
      if LStopScan then begin
          Break;
      end;
    end;
  end;

  procedure PrintSubDirHeader(ARoot, ACurDir : TDirEntry; ALOutput : TStrings; const Recurse : Boolean = False);
  var
    LUnixPrependPath : Boolean;
  begin
    LUnixPrependPath := HasSwitch(SWITCH_SORT_REVERSE) or HasSwitch(SWITCH_SORTBY_MTIME) or (DetermineOp <> doLong);

    if (ACurDir <> ARoot) or LUnixPrependPath then begin
      //we don't want an empty line to start the list
      if ACurDir <> ARoot then begin
        ALOutput.Add('');
      end;
      if DirFormat = doWin32 then begin
        ALOutput.Add(MS_DOS_CURDIR + UnixPathToDOSPath(ACurDir.PathName) + ':');
      end
      else if LUnixPrependPath then begin
        if ACurDir = ARoot then begin
          ALOutput.Add(CUR_DIR + ':');
        end else begin
          ALOutput.Add(UNIX_CURDIR + DOSPathToUnixPath(ACurDir.PathName) + ':');
        end;
      end else begin
        ALOutput.Add(DOSPathToUnixPath(ACurDir.PathName) + ':');
      end;
    end;
  end;

  procedure ProcessOnePathCol(ARoot, ACurDir : TDirEntry; ALOutput : TStrings; const Recurse : Boolean = False);
  var
    li : Integer;
    LCurItem : TIdFTPListOutputItem;
  begin
    if Recurse and Assigned(ACurDir.SubDirs) then begin
      if Recurse then begin
        PrintSubDirHeader(ARoot, ACurDir, ALOutput, Recurse);
      end;
    end;
    for li := 0 to ACurDir.FileList.Count-1 do begin
      ALOutput.Add(NListItem(TIdFTPListOutputItem(ACurDir.FileList.Objects[li])));
    end;
    if Recurse and Assigned(ACurDir.SubDirs) then begin
      for li := 0 to ACurDir.SubDirs.Count-1 do begin
        LCurItem := TDirEntry(ACurDir.SubDirs[li]).DirListItem;
        if LCurItem.DirError then begin
          if li = 0 then begin
            ALOutput.Add('');
          end;
          ALOutput.Add(IndyFormat('/bin/ls: %s: Permission denied', [LCurItem.FileName])); {do not localize}
        end else begin
          ProcessOnePathCol(ARoot, TDirEntry(ACurDir.SubDirs[li]), ALOutput, Recurse);
        end;
      end;
    end;
  end;

  function CalcMaxLen(ARoot, ACurDir : TDirEntry; ALOutput : TStrings; const Recurse : Boolean = False) : Integer;
  var
    LEntryMaxLen : Integer;
    li : Integer;
  begin
    Result := 0;
    for li := 0 to ACurDir.FileList.Count-1 do begin
      LEntryMaxLen := Length(NListItem(TIdFTPListOutputItem(ACurDir.FileList.Objects[li])));
      if LEntryMaxLen > Result then begin
        Result := LEntryMaxLen;
      end;
    end;
    if Recurse and Assigned(ACurDir.SubDirs) then begin
      for li := 0 to ACurDir.SubDirs.Count-1 do begin
        LEntryMaxLen := CalcMaxLen(ARoot, TDirEntry(ACurDir.SubDirs[li]), ALOutput, Recurse);
        if LEntryMaxLen > Result then begin
          Result := LEntryMaxLen;
        end;
      end;
    end;
  end;

  procedure ProcessPathAccross(ARoot, ACurDir : TDirEntry; ALOutput : TStrings; const Recurse : Boolean = False);
  var
    li, j : Integer;
    LTmp : String;
    LMaxLen : Integer;
    LCols : Integer;
    LCurItem : TIdFTPListOutputItem;
  begin
    if ACurDir.FileList.Count = 0 then begin
      Exit;
    end;
    //Note that we will assume a console width of 80 and we don't want something to wrap
    //causing a blank line
    LMaxLen := CalcMaxLen(ARoot, ACurDir, ALOutput, Recurse);
    //if more than 39, we probably are going to exceed the width of the screen,
    //just treat as one column
    if LMaxLen > 39 then begin
      ProcessOnePathCol(ARoot, ACurDir, ALOutput, Recurse);
      Exit;
    end;
    if Recurse and Assigned(ACurDir.SubDirs) then begin
      if Recurse then begin
        PrintSubDirHeader(ARoot, ACurDir, ALOutput, Recurse);
      end;
    end;
    LCols := 79 div (LMaxLen + 2);//2 spaces between columns
    j := 0;
    repeat
      LTmp := '';
      for li := 0 to LCols -1 do begin
        LTmp := LTmp + PadString(NListItem(TIdFTPListOutputItem(ACurDir.FileList.Objects[j])), LMaxLen, ' ') + '  ';
        Inc(j);
        if j = ACurDir.FileList.Count then begin
          Break;
        end;
      end;
      ALOutput.Add(TrimRight(LTmp));
    until j = ACurDir.FileList.Count;

    if Recurse and Assigned(ACurDir.SubDirs) then begin
      for li := 0 to ACurDir.SubDirs.Count-1 do begin
        LCurItem := TDirEntry(ACurDir.SubDirs[li]).DirListItem;
        if LCurItem.DirError then begin
          if li = 0 then begin
            ALOutput.Add('');
          end;
          ALOutput.Add(IndyFormat('/bin/ls: %s: Permission denied', [LCurItem.FileName])); {do not localize}
        end else begin
          ProcessPathAccross(ARoot, TDirEntry(ACurDir.SubDirs[li]), ALOutput, Recurse);
        end;
      end;
    end;
  end;

  procedure ProcessPathDown(ARoot, ACurDir : TDirEntry; ALOutput : TStrings; const Recurse : Boolean = False);
  var
    li, j : Integer;
    LTmp : String;
    LMaxLen : Integer;
    LCols : Integer;
    LLines : Integer;
  //  LFrm : String;
    LCurItem : TIdFTPListOutputItem;
  begin

    if ACurDir.FileList.Count = 0 then begin
      Exit;
    end;
    //Note that we will assume a console width of 80 and we don't want something to wrap
    //causing a blank line
    LMaxLen := CalcMaxLen(ARoot, ACurDir, ALOutput, Recurse);
    //if more than 39, we probably are going to exceed the width of the screen,
    //just treat as one column
    if LMaxLen > 39 then begin
      ProcessOnePathCol(ARoot, ACurDir, ALOutput, Recurse);
      Exit;
    end;
    if Recurse and Assigned(ACurDir.SubDirs) then begin
      if Recurse then begin
        PrintSubDirHeader(ARoot, ACurDir, ALOutput, Recurse);
      end;
    end;
    LCols := 79 div (LMaxLen + 2);//2 spaces between columns
    LLines := ACurDir.FileList.COunt div LCols;
    //LFrm := '%' + IntToStr(LMaxLen+2) + 's';
    if (ACurDir.FileList.COunt mod LCols) > 0 then begin
      Inc(LLines);
    end;
    for li := 1 to LLines do begin
      j := 0;
      LTmp := '';
      repeat
        if ((li-1)+(LLInes*j)) < ACurDir.FileList.Count then begin
          LTmp := LTmp + PadString(NListItem(TIdFTPListOutputItem(ACurDir.FileList.Objects[(li-1)+(LLInes*j)])), LMaxLen, ' ') + '  ';
        end;
        Inc(j);
      until (j > LCols);
      ALOutput.Add(TrimRight(LTmp));
    end;
    if Recurse and Assigned(ACurDir.SubDirs) then begin
      for li := 0 to ACurDir.SubDirs.Count -1 do begin
        LCurItem := TDirEntry(ACurDir.SubDirs[li]).DirListItem;
        if LCurItem.DirError then begin
          if li = 0 then begin
            ALOutput.Add('');
          end;
          ALOutput.Add(IndyFormat('/bin/ls: %s: Permission denied', [LCurItem.FileName])); {do not localize}
        end else begin
          ProcessPathAccross(ARoot, TDirEntry(ACurDir.SubDirs[li]), ALOutput, Recurse);
        end;
      end;
    end;
  end;

  procedure ProcessPathComma(ARoot, ACurDir : TDirEntry; ALOutput : TStrings; const Recurse : Boolean = False);
  var
    li : Integer;
    LTmp : String;
    LCurItem : TIdFTPListOutputItem;
  begin
    if Recurse then begin
      PrintSubDirHeader(ARoot, ACurDir, ALOutput, Recurse);
    end;
    LTmp := '';
    for li := 0 to ACurDir.FileList.Count -1 do begin
      LTmp := LTmp + NListItem(TIdFTPListOutputItem(ACurDir.FileList.Objects[li])) + ', ';
    end;
    IdDelete(LTmp, Length(LTmp)-1, 2);
    ALOutput.Text := ALOutput.Text + IndyWrapText(LTmp, EOL + ' ', LWS + ',' , 79);  //79 good maxlen for text only terminals
    if Recurse and Assigned(ACurDir.SubDirs) then begin
      for li := 0 to ACurDir.SubDirs.Count -1 do begin
        LCurItem := TDirEntry(ACurDir.SubDirs[li]).DirListItem;
        if LCurItem.DirError then begin
          if li = 0 then begin
            ALOutput.Add('');
          end;
          ALOutput.Add(IndyFormat('/bin/ls: %s: Permission denied', [LCurItem.FileName])); {do not localize}
        end else begin
          ProcessPathComma(ARoot, TDirEntry(ACurDir.SubDirs[li]), ALOutput, Recurse);
        end;
      end;
    end;
  end;

  procedure ProcessPathLong(ARoot, ACurDir : TDirEntry; ALOutput : TStrings; const Recurse : Boolean = False);
  var
    li : Integer;
    LBlockCount : Integer;
    LCurItem : TIdFTPListOutputItem;
  begin
    if Recurse then begin
      PrintSubDirHeader(ARoot, ACurDir, ALOutput, Recurse);
    end;

    if (DirFormat = doUnix) and ExportTotalLine then begin
      LBlockCount := 0;
      for li := 0 to ACurDir.FileList.Count-1 do begin
        LBlockCount := LBlockCount + TIdFTPListOutputItem(ACurDir.FileList.Objects[li]).NumberBlocks;
      end;
      ALOutput.Add(IndyFormat('total %d', [LBlockCount]));  {Do not translate}
    end;

    for li := 0 to ACurDir.FileList.Count-1 do begin
      LCurItem := TIdFTPListOutputItem(ACurDir.FileList.Objects[li]);
      case DirFormat of
        doEPLF : ALOutput.Add(EPLFItem(LCurItem));
        doWin32 : ALOutput.Add(Win32Item(LCurItem));
      else
        ALOutput.Add(UnixItem(LCurItem));
      end;
    end;

    if Recurse and Assigned(ACurDir.SubDirs) then begin
      for li := 0 to ACurDir.SubDirs.Count-1 do begin
        LCurItem := TDirEntry(ACurDir.SubDirs[li]).DirListItem;
        if LCurItem.DirError then begin
          if DirFormat = doUnix then begin
            if li = 0 then begin
              ALOutput.Add('');
            end;
            ALOutput.Add(IndyFormat('/bin/ls: %s: Permission denied', [LCurItem.FileName])); {do not localize}
          end;
        end;
        ProcessPathLong(ARoot, TDirEntry(ACurDir.SubDirs[li]), ALOutput, Recurse);
      end;
    end;
  end;

  procedure DoUnixfParam(ARoot : TDirEntry; ALOutput : TStrings);
  var
    li : Integer;
    LIt : TIdFTPListItem;
  begin
    for li := 0 to ARoot.FileList.Count -1 do begin
      LIt := TIdFTPListItem(ARoot.FileList.Objects[li]);
      if LIt.ItemType = ditDirectory then begin
        ALOutput.Add(IndyGetFileName(LIt.FileName));
      end;
    end;
  end;

begin
  LShowNavSym := (DirFormat = doUnix) and HasSwitch(SWITCH_SHOW_ALLPERIOD);
  if LShowNavSym then begin
    LShowNavSym := not HasSwitch(SWITCH_HIDE_DIRPOINT);
  end;
  LRootPath := TDirEntry.Create('', nil);
  try
    for i := 0 to Count-1 do
    begin
      if Items[i].ItemType in [ditDirectory, ditSymbolicLinkDir] then begin
        if not IsNavPath(StripInitPathDelim(IndyGetFileName(Items[i].FileName))) then begin
          LRootPath.AddSubDir(StripInitPathDelim(Items[i].FileName), Items[i]);
        end else begin
          //if it's a "." or "..", we show it only in Unix mode and only with eht -a switch
          if LShowNavSym then begin
            LRootPath.AddFileName(StripInitPathDelim(Items[i].FileName), Items[i]);
          end;
        end;
      end;
    end;
    //add the file names
    for i := 0 to Count-1 do begin
      if Items[i].ItemType in [ditFile, ditSymbolicLink] then begin
        if IsNavPath(StripInitPathDelim(IndyGetFileName(Items[i].FileName))) then begin
          if LShowNavSym then begin
            LRootPath.AddFileName(StripInitPathDelim(Items[i].FileName), Items[i]);
          end;
        end else begin
          LRootPath.AddFileName(StripInitPathDelim(Items[i].FileName), Items[i]);
        end;
      end;
    end;
    //Note that Indy does not support a Last Access time in some file systems
    //so we use the u parameter to mean the same as the t parameter
    if HasSwitch(SWITCH_SORT_REVERSE) then begin
      if HasSwitch(SWITCH_SORTBY_MTIME) or HasSwitch(SWITCH_SORTBY_CTIME) then begin
        LRootPath.SortDescendMTime;
      end
      else if HasSwitch(SWITCH_SORTBY_EXT) then begin
        LRootPath.SortDescendFNameExt;
      end
      else if HasSwitch(SWITCH_SORTBY_SIZE) then begin
        LRootPath.SortDescendSize;
      end
      else begin
        LRootPath.SortDescendFName;
      end;
    end
    else if HasSwitch(SWITCH_SORTBY_MTIME) or HasSwitch(SWITCH_SORTBY_CTIME) then begin
      LRootPath.SortAscendMTime;
    end
    else if HasSwitch(SWITCH_SORTBY_EXT) then begin
      LRootPath.SortAscendFNameExt;
    end
    else if HasSwitch(SWITCH_SORTBY_SIZE) then begin
      LRootPath.SortAscendSize;
    end
    else begin
      LRootPath.SortAscendFName;
    end;
    //select the operation
    // do the selected output operation
    case DetermineOp of
      doColsAccross : ProcessPathAccross(LRootPath, LRootPath, AOutput, HasSwitch(SWITCH_RECURSIVE));
      doColsDown    : ProcessPathDown(LRootPath, LRootPath, AOutput, HasSwitch(SWITCH_RECURSIVE));
      doOneCol      : ProcessOnePathCol(LRootPath, LRootPath, AOutput, HasSwitch(SWITCH_RECURSIVE));
      doOnlyDirs    : DoUnixfParam(LRootPath, AOutput);
      doComma       : ProcessPathComma(LRootPath, LRootPath, AOutput, HasSwitch(SWITCH_RECURSIVE));
    else
      ProcessPathLong(LRootPath, LRootPath, AOutput, HasSwitch(SWITCH_RECURSIVE));
    end;
  finally
    FreeAndNil(LRootPath);
  end;
end;

procedure TIdFTPListOutput.LISTOutputDir(AOutput: TStrings);
begin
  InternelOutputDir(AOutput, True);
end;

function TIdFTPListOutput.MListItem(AItem: TIdFTPListOutputItem; AMLstOpts: TIdFTPFactOutputs): String;
begin
  Result := '';
  if AMLstOpts = [] then begin
    Result := AItem.FileName;
    Exit;
  end;

  if (Size in AMLstOpts) and AItem.SizeAvail then begin
    Result := 'size=' + IntToStr(AItem.Size) + ';'; {do not localize}
  end;

  if ItemType in AMLstOpts then begin
    Result := Result + 'type='; {do not localize}
    case AItem.ItemType of
      ditFile :
        begin
          Result := Result + 'file;'; {do not localize}
        end;
      ditDirectory :
        begin
          if AItem.FileName = '..' then begin {do not localize}
            Result := Result + 'pdir;'; {do not localize}
          end
          else if AItem.FileName = '.' then begin
            Result := Result + 'cdir;'; {do not localize}
          end
          else begin
            Result := Result + 'dir;';  {do not localize}
          end;
        end;
      ditSymbolicLink :
        begin
          Result := Result + 'OS.unix=slink:' + AItem.FileName + ';';  {do not localize}
        end;
    end;

  end;

  if Perm in AMLstOpts then begin
    Result := Result + 'perm=' + AItem.MLISTPermissions + ';';  {do not localize}
  end;
  if (winDriveType in AMLstOpts) and (AItem.WinDriveType<>-1) then begin
       Result := Result + 'win32.dt='+IntToStr(AItem.WinDriveType  )+';';
  end;
  if CreateTime in AMLstOpts then begin
    if AItem.CreationDateGMT <> 0 then begin
      Result := Result + 'create='+ FTPGMTDateTimeToMLS(AItem.CreationDateGMT) + ';';  {do not localize}
    end
    else if AItem.CreationDate <> 0 then begin
      Result := Result + 'create='+ FTPLocalDateTimeToMLS(AItem.CreationDate) + ';';  {do not localize}
    end;
  end;

  if (Modify in AMLstOpts) and AItem.ModifiedAvail then
  begin
    if AItem.ModifiedDateGMT <> 0 then begin
      Result := Result + 'modify='+  FTPGMTDateTimeToMLS(AItem.ModifiedDateGMT) + ';';  {do not localize}
    end
    else if AItem.ModifiedDate <> 0 then begin
      Result := Result + 'modify='+ FTPLocalDateTimeToMLS(AItem.ModifiedDate) + ';';  {do not localize}
    end;
  end;

  if UnixMODE in AMLstOpts then begin
    Result := Result + 'UNIX.mode='+ IndyFormat('%.4d', [PermsToChmodNo(UnixGetOutputOwnerPerms(AItem), UnixGetOutputGroupPerms(AItem), UnixGetOutputOtherPerms(AItem) )] ) + ';';  {do not localize}
  end;

  if UnixOwner in AMLstOpts then begin
    Result := Result + 'UNIX.owner=' + UnixGetOutputOwner(AItem) + ';'; {do not localize}
  end;

  if UnixGroup in AMLstOpts then begin
    Result := Result + 'UNIX.group=' + UnixGetOutputGroup(AItem) + ';'; {do not localize}
  end;

  if (Unique in AMLstOpts) and (AItem.UniqueID <> '') then begin
    Result := Result + 'unique=' + AItem.UniqueID + ';'; {do not localize}
  end;

  if LastAccessTime in AMLstOpts then begin
    if AItem.ModifiedDateGMT <> 0 then begin
      Result := Result + 'windows.lastaccesstime=' +  FTPGMTDateTimeToMLS(AItem.ModifiedDateGMT) + ';';  {do not localize}
    end
    else if AItem.ModifiedDate <> 0 then begin
      Result := Result + 'windows.lastaccesstime=' + FTPLocalDateTimeToMLS(AItem.ModifiedDate) + ';';  {do not localize}
    end;
  end;

  if WinAttribs in AMLstOpts then begin
    Result := Result + 'win32.ea=0x' + IntToHex(AItem.WinAttribs, 8) + ';'; {do not localize}
  end;
  if (AItem.WinDriveType > -1) and (WinDriveType in AMLstOpts)  then begin
    Result := Result + 'Win32.dt='+IntToStr( AItem.WinDriveType ) + ';';
  end;
  if (AItem.WinDriveLabel <> '') and (WinDriveLabel in AMLstOpts) then begin
    Result := Result + 'Win32.dl='+AItem.WinDriveLabel;
  end;

  Result := Result + ' ' + AItem.FileName;
end;

procedure TIdFTPListOutput.MLISTOutputDir(AOutput : TStrings; AMLstOpts: TIdFTPFactOutputs);
var
  i : Integer;
begin
  AOutput.Clear;
  for i := 0 to Count-1 do begin
    AOutput.Add(MListItem(Items[i], AMLstOpts));
  end;
end;

function TIdFTPListOutput.NListItem(AItem: TIdFTPListOutputItem): String;
begin
  Result := IndyGetFileName(AItem.FileName);
  if DirFormat = doUnix then begin
    if HasSwitch(SWITCH_QUOTEDNAME) then begin
      Result := '"' + Result + '"';
    end;
    if HasSwitch(SWITCH_CLASSIFY) or HasSwitch(SWITCH_SLASHDIR) then begin
      case AItem.ItemType of
        ditDirectory :
          Result := Result + PATH_SUBDIR_SEP_UNIX;
        ditSymbolicLink, ditSymbolicLinkDir :
          Result := Result + '@';
        else
          begin
            if IsUnixExec(AItem.UnixOwnerPermissions, AItem.UnixGroupPermissions , AItem.UnixOtherPermissions) then begin
              Result := Result + '*';
            end;
          end;
      end;
    end;
    Result := UnixinodeOutput(AItem)+ UnixBlocksOutput(AItem) + Result;
  end;
end;

procedure TIdFTPListOutput.NLISTOutputDir(AOutput: TStrings);
begin
  InternelOutputDir(AOutput, False);
end;

procedure TIdFTPListOutput.SetItems(AIndex: Integer; const AValue: TIdFTPListOutputItem);
begin
  inherited Items[AIndex] := AValue;
end;

function TIdFTPListOutput.UnixBlocksOutput(AItem: TIdFTPListOutputItem): String;
begin
  if HasSwitch(SWITCH_PRINT_BLOCKS) then begin
    Result := IndyFormat('%4d ', [AItem.NumberBlocks]);
  end else begin
    Result := '';
  end;
end;

function TIdFTPListOutput.UnixGetOutputGroup(AItem: TIdFTPListOutputItem): String;
begin
  if AItem.GroupName = '' then begin
    Result := UnixGetOutputOwner(AItem);
  end else begin
    Result := AItem.GroupName;
  end;
end;

function TIdFTPListOutput.UnixGetOutputGroupPerms(AItem: TIdFTPListOutputItem): String;
begin
  if AItem.UnixOtherPermissions = '' then begin
    if AItem.ItemType in [ditSymbolicLink, ditSymbolicLinkDir] then begin
      Result := DEF_DIR_GRP_PERM;
    end else begin
      Result := DEF_FILE_GRP_PERM;
    end;
  end else begin
    Result := AItem.UnixOtherPermissions;
  end;
end;

function TIdFTPListOutput.UnixGetOutputOtherPerms(AItem: TIdFTPListOutputItem): String;
begin
  if AItem.UnixOtherPermissions = '' then begin
    if AItem.ItemType in [ditSymbolicLink, ditSymbolicLinkDir] then begin
      Result := DEF_DIR_OTHER_PERM;
    end else begin
      Result := DEF_FILE_OTHER_PERM;
    end;
  end else begin
    Result := AItem.UnixOtherPermissions;
  end;
end;

function TIdFTPListOutput.UnixGetOutputOwner(AItem: TIdFTPListOutputItem): String;
begin
  if AItem.OwnerName = '' then begin
    Result := DEF_OWNER;
  end else begin
    Result := AItem.OwnerName;
  end;
end;

function TIdFTPListOutput.UnixGetOutputOwnerPerms(AItem: TIdFTPListOutputItem): String;
begin
  if AItem.UnixOwnerPermissions = '' then begin
    if AItem.ItemType in [ditSymbolicLink, ditSymbolicLinkDir] then begin
      Result := DEF_DIR_OWN_PERM;
    end else begin
      Result := DEF_FILE_OWN_PERM;
    end;
  end else begin
    Result := AItem.UnixOwnerPermissions;
  end;
end;

function TIdFTPListOutput.UnixINodeOutput(AItem: TIdFTPListOutputItem): String;
var
  LInode : String;
begin
  Result := '';
  if HasSwitch(SWITCH_PRINT_INODE) then begin
    LInode := IntToStr(Abs(AItem.Inode));
    //should be no more than 10 digits
    LInode := Copy(LInode, 1, 10);
    Result := Result + IndyFormat('%10s ', [LInode]);
  end;
end;

function TIdFTPListOutput.UnixItem(AItem: TIdFTPListOutputItem): String;
var
  LSize, LTime: string;
  l, month: Word;
  LLinkNum : Integer;
  LFileName : String;
  LFormat : String;
  LMTime : TDateTime;
begin
  LFileName := IndyGetFileName(AItem.FileName);
  Result := UnixINodeOutput(AItem) + UnixBlocksOutput(AItem);
  case AItem.ItemType of
    ditDirectory:
      begin
        AItem.Size := UNIX_DIR_SIZE;
        LSize := 'd';    {Do not Localize}
      end;
    ditSymbolicLink:
      begin
        LSize := 'l';    {Do not Localize}
      end;
    else
      begin
        LSize := '-';    {Do not Localize}
      end;
  end;
  if AItem.LinkCount = 0 then begin
    LLinkNum := 1;
  end else begin
    LLinkNum := AItem.LinkCount;
  end;
  LFormat := '%3:3s%4:3s%5:3s %6:3d '; {Do not localize}
  //g - surpress owner
  //lrwxrwxrwx   1 other          7 Nov 16  2001 bin -> usr/bin
  //where it would normally print
  //lrwxrwxrwx   1 root     other          7 Nov 16  2001 bin -> usr/bin
  if not HasSwitch('g') then begin
    LFormat := LFormat + '%1:-8s '; {Do not localize}
  end;
  //o - surpress group
  //lrwxrwxrwx   1 root           7 Nov 16  2001 bin -> usr/bin
  //where it would normally print
  //lrwxrwxrwx   1 root     other          7 Nov 16  2001 bin -> usr/bin
  if not HasSwitch('o') then begin
    LFormat := LFormat + '%2:-8s ';  {Do not localize}
  end;
  LFormat := LFormat + '%0:8d'; {Do not localize}
  LSize := LSize + IndyFormat(LFormat, [AItem.Size, UnixGetOutputOwner(AItem),
    UnixGetOutputGroup(AItem), UnixGetOutputOwnerPerms(AItem),
    UnixGetOutputGroupPerms(AItem), UnixGetOutputOtherPerms(AItem), LLinkNum]);
  LMTime := GetLocalModTime(AItem);
  DecodeDate(LMTime, l, month, l);
  LTime := MonthNames[month] + FormatDateTime(' dd', LMTime);    {Do not Localize}
  if HasSwitch(SWITCH_BOTH_TIME_YEAR) then begin
    LTime := LTime + FormatDateTime(' hh:nn:ss yyyy', LMTime);   {Do not Localize}
  end
  else if IsIn6MonthWindow(LMTime) then begin    {Do not Localize}
    LTime := LTime + FormatDateTime(' hh:nn', LMTime);    {Do not Localize}
  end
  else begin
    LTime := LTime + FormatDateTime('  yyyy', LMTime);    {Do not Localize}
  end;
  // A.Neillans, 20 Apr 2002, Fixed glitch, extra space in front of names.
  //      Result := LSize + ' ' + LTime + '  ' + FileName;    {Do not Localize}
  Result := Result + LSize + ' ' + LTime + ' ';
  if HasSwitch(SWITCH_QUOTEDNAME) then begin
    Result := Result + '"' + LFileName + '"'; {Do not Localize}
  end else begin
    Result := Result + LFileName;
  end;
  if AItem.ItemType in [ditSymbolicLink, ditSymbolicLinkDir] then begin
    if HasSwitch(SWITCH_QUOTEDNAME) then begin
      Result := Result + UNIX_LINKTO_SYM + '"' + AItem.LinkedItemName + '"'; {Do not Localize}
    end else begin
      Result := Result + UNIX_LINKTO_SYM + AItem.LinkedItemName;
    end;
  end;
  if ((IndyPos(SWITCH_CLASSIFY,Switches)>0) or (IndyPos(SWITCH_SLASHDIR,Switches)>0)) and  {Do not translate}
        (AItem.ItemType in [ditDirectory, ditSymbolicLinkDir]) then
  begin
    Result := Result + PATH_SUBDIR_SEP_UNIX;
  end;
  if HasSwitch(SWITCH_CLASSIFY) and (AItem.ItemType = ditFile) and
    IsUnixExec(UnixGetOutputOwnerPerms(AItem), UnixGetOutputGroupPerms(AItem), UnixGetOutputOtherPerms(AItem)) then
  begin
    //star is placed at the end of a file name
    //like this:
    //-r-xr-xr-x   1 0        1          17440 Aug  8  2000 ls*
    Result := Result + '*';
  end;
end;

function TIdFTPListOutput.Win32Item(AItem: TIdFTPListOutputItem): String;
var
  LSize, LFileName : String;
begin
  LFileName := IndyGetFileName(AItem.FileName);
  if AItem.ItemType = ditDirectory then begin
    LSize := '      <DIR>' + StringOfChar(' ', 9);    {Do not Localize}
  end else begin
    LSize := StringOfChar(' ', 20 - Length(IntToStr(AItem.Size))) + IntToStr(AItem.Size);    {Do not Localize}
  end;
  Result := FormatDateTime('mm-dd-yy  hh:nnAM/PM', GetLocalModTime(AItem)) + ' ' + LSize + ' ' + LFileName;    {Do not Localize}
end;

{ TDirEntry }

function TDirEntry.AddFileName(const APathName: String; ADirEnt: TIdFTPListOutputItem) : Boolean;
var
  i : Integer;
  LParentPart : String;
  LDirEnt : TDirEntry;
begin
  Result := False;
  LParentPart := StripInitPathDelim(IndyGetFilePath(APathName));
  if LParentPart = PathName then begin
    if FFileList.IndexOf(APathName) = -1 then begin
      FFileList.AddObject(APathName, ADirEnt);
    end;
    Result := True;
    Exit;
  end;
  if Assigned(SubDirs) then begin
    for i := 0 to SubDirs.Count-1 do begin
      LDirEnt := TDirEntry(SubDirs[i]);
      LParentPart := StripInitPathDelim(IndyGetFilePath(LDirEnt.FDirListItem.FileName));
      if TextStartsWith(APathName, LParentPart) then begin
        if TDirEntry(SubDirs[i]).AddFileName(APathName, ADirEnt) then begin
          Result := True;
          Break;
        end;
      end;
    end;
  end;
end;

function TDirEntry.AddSubDir(const APathName: String; ADirEnt: TIdFTPListOutputItem) : Boolean;
var
  LDirEnt : TDirEntry;
  i : Integer;
  LParentPart : String;
begin
  Result := False;
  LParentPart := StripInitPathDelim(IndyGetFilePath(APathName));
  if LParentPart = PathName then begin
    if not Assigned(FSubDirs) then begin
      FSubDirs := TDirEntryList.Create;
    end;
    LParentPart := StripInitPathDelim(IndyGetFilePath(APathName));
    LParentPart := IndyGetFileName(LParentPart);
    LDirEnt := TDirEntry.Create(APathName, ADirEnt);
    try
      FSubDirs.Add(LDirEnt);
    except
      LDirEnt.Free;
      raise;
    end;
    AddFileName(APathName, ADirEnt);
    Result := True;
    Exit;
  end;
  if Assigned(SubDirs) then begin
    for i := 0 to SubDirs.Count-1 do begin
      LDirEnt := TDirEntry(SubDirs[i]);
      LParentPart := StripInitPathDelim(IndyGetFilePath(LDirEnt.FDirListItem.FileName));
      if TextStartsWith(APathName, LParentPart) then begin
        if LDirEnt.AddSubDir(APathName, ADirEnt) then begin
          Result := True;
          Break;
        end;
      end;
    end;
  end;
end;

constructor TDirEntry.Create(const APathName : String; ADirListItem : TIdFTPListOutputItem);
begin
  inherited Create;
  FPathName := APathName;
  FFileList := TIdBubbleSortStringList.Create;
  FDirListItem := ADirListItem;
  //create that only when necessary;
  FSubDirs := TDirEntryList.Create;
end;

destructor TDirEntry.Destroy;
begin
  FreeAndNil(FFileList);
  FreeAndNil(FSubDirs);
  inherited Destroy;
end;

procedure TDirEntry.SortAscendFName;
var
  i : Integer;
  LSubDir: TDirEntry;
begin
  if Assigned(FFileList) then begin
    FFileList.BubbleSort(StrSortAscFName);
  end;
  if Assigned(FSubDirs) then begin
    FSubDirs.BubbleSort(
      {$IFDEF HAS_GENERICS_TObjectList}
      DESortAscFName
      {$ELSE}
      TIdSortCompare(@DESortAscFName)
      {$ENDIF}
    );
    for i := 0 to FSubDirs.Count-1 do begin
      LSubDir := {$IFDEF HAS_GENERICS_TObjectList}FSubDirs[i]{$ELSE}TDirEntry(FSubDirs[i]){$ENDIF};
      LSubDir.SortAscendFName;
    end;
  end;
end;

procedure TDirEntry.SortAscendMTime;
var
  i : Integer;
  LSubDir: TDirEntry;
begin
  if Assigned(FFileList) then begin
    FFileList.BubbleSort(StrSortAscMTime);
  end;
  if Assigned(FSubDirs) then begin
    FSubDirs.BubbleSort(
      {$IFDEF HAS_GENERICS_TObjectList}
      DESortAscMTime
      {$ELSE}
      TIdSortCompare(@DESortAscMTime)
      {$ENDIF}
    );
    for i := 0 to FSubDirs.Count-1 do begin
      LSubDir := {$IFDEF HAS_GENERICS_TObjectList}FSubDirs[i]{$ELSE}TDirEntry(FSubDirs[i]){$ENDIF};
      LSubDir.SortAscendMTime;
    end;
  end;
end;

procedure TDirEntry.SortDescendMTime;
var
  i : Integer;
  LSubDir: TDirEntry;
begin
  if Assigned(FFileList) then begin
    FFileList.BubbleSort(StrSortDescMTime);
  end;
  if Assigned(FSubDirs) then begin
    FSubDirs.BubbleSort(
      {$IFDEF HAS_GENERICS_TObjectList}
      DESortDescMTime
      {$ELSE}
      TIdSortCompare(@DESortDescMTime)
      {$ENDIF}
    );
    for i := 0 to FSubDirs.Count -1 do begin
      LSubDir := {$IFDEF HAS_GENERICS_TObjectList}FSubDirs[i]{$ELSE}TDirEntry(FSubDirs[i]){$ENDIF};
      LSubDir.SortDescendMTime;
    end;
  end;
end;

procedure TDirEntry.SortDescendFName;
var
  i : Integer;
  LSubDir: TDirEntry;
begin
  if Assigned(FSubDirs) then begin
    FSubDirs.BubbleSort(
      {$IFDEF HAS_GENERICS_TObjectList}
      DESortDescFName
      {$ELSE}
      TIdSortCompare(@DESortDescFName)
      {$ENDIF}
    );
    for i := 0 to FSubDirs.Count-1 do begin
      LSubDir := {$IFDEF HAS_GENERICS_TObjectList}FSubDirs[i]{$ELSE}TDirEntry(FSubDirs[i]){$ENDIF};
      LSubDir.SortDescendFName;
    end;
  end;
  if Assigned(FFileList) then begin
    FFileList.BubbleSort(StrSortDescFName);
  end;
end;

procedure TDirEntry.SortAscendFNameExt;
var
  i : Integer;
  LSubDir: TDirEntry;
begin
  if Assigned(FFileList) then begin
    FFileList.BubbleSort(StrSortAscFNameExt);
  end;
  if Assigned(FSubDirs) then begin
    FSubDirs.BubbleSort(
      {$IFDEF HAS_GENERICS_TObjectList}
      DESortAscFName
      {$ELSE}
      TIdSortCompare(@DESortAscFName)
      {$ENDIF}
    );
    for i := 0 to FSubDirs.Count-1 do begin
      LSubDir := {$IFDEF HAS_GENERICS_TObjectList}FSubDirs[i]{$ELSE}TDirEntry(FSubDirs[i]){$ENDIF};
      LSubDir.SortAscendFNameExt;
    end;
  end;
end;

procedure TDirEntry.SortDescendFNameExt;
var
  i : Integer;
  LSubDir: TDirEntry;
begin
  if Assigned(FFileList) then begin
    FFileList.BubbleSort(StrSortDescFNameExt);
  end;
  if Assigned(FSubDirs) then begin
    FSubDirs.BubbleSort(
      {$IFDEF HAS_GENERICS_TObjectList}
      DESortAscFName
      {$ELSE}
      TIdSortCompare(@DESortAscFName)
      {$ENDIF}
    );
    for i := 0 to FSubDirs.Count-1 do begin
      LSubDir := {$IFDEF HAS_GENERICS_TObjectList}FSubDirs[i]{$ELSE}TDirEntry(FSubDirs[i]){$ENDIF};
      LSubDir.SortDescendFNameExt;
    end;
  end;
end;

procedure TDirEntry.SortAscendSize;
var
  i : Integer;
  LSubDir: TDirEntry;
begin
  if Assigned(FFileList) then begin
    FFileList.BubbleSort(StrSortAscSize);
  end;
  if Assigned(FSubDirs) then begin
    FSubDirs.BubbleSort(
      {$IFDEF HAS_GENERICS_TObjectList}
      DESortAscMTime
      {$ELSE}
      TIdSortCompare(@DESortAscMTime)
      {$ENDIF}
    );
    for i := 0 to FSubDirs.Count-1 do begin
      LSubDir := {$IFDEF HAS_GENERICS_TObjectList}FSubDirs[i]{$ELSE}TDirEntry(FSubDirs[i]){$ENDIF};
      LSubDir.SortAscendSize;
    end;
  end;
end;

procedure TDirEntry.SortDescendSize;
var
  i : Integer;
  LSubDir: TDirEntry;
begin
  if Assigned(FFileList) then begin
    FFileList.BubbleSort(StrSortDescSize);
  end;
  if Assigned(FSubDirs) then begin
    FSubDirs.BubbleSort(
      {$IFDEF HAS_GENERICS_TObjectList}
      DESortDescFName
      {$ELSE}
      TIdSortCompare(@DESortDescFName)
      {$ENDIF}
    );
    for i := 0 to FSubDirs.Count-1 do begin
      LSubDir := {$IFDEF HAS_GENERICS_TObjectList}FSubDirs[i]{$ELSE}TDirEntry(FSubDirs[i]){$ENDIF};
      LSubDir.SortDescendSize;
    end;
  end;
end;

{ TIdFTPListOutputItem }

constructor TIdFTPListOutputItem.Create(AOwner: TCollection);
begin
  inherited Create(AOwner);
  //indicate that this fact is not applicable
  FWinDriveType := -1;
end;

end.