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unit ftplister;
{$mode objfpc}{$H+}
interface
uses
classes, sysutils, dateutils,
lnet, lftp;
type
{ TFTPLister }
TFTPLister = class
private
FFtp: TLFTPClient;
FInternalStatus: TLFTPStatus;
FDirList: string;
procedure FtpError(const msg: string; aSocket: TLSocket);
procedure FtpConnect(Sender: TLSocket);
procedure FtpControl(Sender: TLSocket);
procedure FtpReceive(Sender: TLSocket);
procedure FtpSuccess(Sender: TLSocket; const aStatus: TLFTPStatus);
procedure FtpFailure(Sender: TLSocket; const aStatus: TLFTPStatus);
public
constructor Create;
destructor Destroy; override;
function GetList(const server, dir: string): TStrings;
end;
{ TFtpFile }
TFtpFile = class
private
FFileDate: TDateTime;
FFileName: string;
public
constructor Create(AListLine: string);
property FileName : string read FFileName;
property FileDate : TDateTime read FFileDate;
end;
implementation
const
MonthNames : array[1..12] of string[3] =
('JAN', 'FEB', 'MAR', 'APR', 'MAY', 'JUN',
'JUL', 'AUG', 'SEP', 'OCT', 'NOV', 'DEC');
constructor TFtpFile.Create(AListLine: string);
{ example line
lrwxrwxrwx 1 0 0 7 Jun 07 19:12 fpc -> pub/fpc
-rw-r--r-- 1 1003 100 52533164 Jul 07 2006 lazarus-arm-wince-20060707.7z
}
var
datestr: string;
month:integer;
year: string;
timestr: string;
startpos: integer;
procedure ParseMonth(Name: string);
begin
Name := uppercase(Name);
//writeln('Month: ', Name);
month := 1;
while (Name<>MonthNames[month]) and (month<high(MonthNames)) do
inc(month);
end;
begin
startpos := 55;
while (AListLine[startpos]<>' ') do
inc(startpos);
FFileName := copy(AListLine, startpos+1, length(AListLine)-startpos);
writeln(FFileName);
ParseMonth(copy(AListLine, 44, 3));
TimeStr := copy(AListLine, 51, 5);
if pos(':', timestr)=0 then begin
Year := Trim(timestr);
timestr := '';
end
else
Year := IntToStr(YearOf(Now));;
datestr := copy(AListLine, 48, 2) + '-' + IntToStr(month) + '-'+ Year;
ShortDateFormat := 'DD-MM-YYYY';
DateSeparator:= '-';
if length(timestr)>0 then
datestr := datestr + ' ' + timestr;
FFileDate := StrToDateTime(datestr);
if FFileDate > IncDay(Now) then
begin
// datum ligt in de toekomst, dan een jaar terug
Year := IntToStr(YearOf(Now)-1);
datestr := copy(AListLine, 48, 2) + '-' + IntToStr(month) + '-'+ Year + ' ' + timestr;
FFileDate := StrToDateTime(datestr);
end;
end;
{ TFPTLister }
procedure TFTPLister.FtpReceive(Sender: TLSocket);
var
s: string;
begin
//Write('D:');
s := FFtp.GetDataMessage;
if FInternalStatus = fsCWD then
FDirList := FDirList + s;
//Writeln(s);
end;
procedure TFTPLister.FtpSuccess(Sender: TLSocket; const aStatus: TLFTPStatus);
begin
FInternalStatus := aStatus;
//Writeln('Success on status: ' + FTPStatusToStr(aStatus));
end;
procedure TFTPLister.FtpFailure(Sender: TLSocket; const aStatus: TLFTPStatus);
begin
//Writeln('Failure on status: ' + FTPStatusToStr(aStatus));
end;
procedure TFTPLister.FtpError(const msg: string; aSocket: TLSocket);
begin
Writeln('Error: ', msg);
RunError(99);
end;
procedure TFTPLister.FtpConnect(Sender: TLSocket);
begin
//writeln('Connected');
end;
procedure TFTPLister.FtpControl(Sender: TLSocket);
var
s: string;
begin
if FFtp.GetMessage(s) > 0 then begin
//writeln('C: ', s);
end;
end;
constructor TFTPLister.Create;
begin
FInternalStatus := fsNone;
FFtp := TLFTPClient.Create(nil);
FFtp.StatusSet := [fsType, fsCon, fsCWD, fsList]; // let's watch for these only, these will call OnSuccess or OnFailure
FFtp.PipeLine := False; // this means CLIENT pipeline emulation
FFtp.Timeout := 100;
FFtp.OnConnect := @FtpConnect;
FFtp.OnError := @FtpError;
FFtp.OnReceive := @FtpReceive;
FFtp.OnControl := @FtpControl;
FFtp.OnSuccess := @FtpSuccess; // reports when "watched" status succesfuly finishes
FFtp.OnFailure := @FtpFailure; // --||-- fails
end;
destructor TFTPLister.Destroy;
begin
FFtp.Free;
inherited Destroy;
end;
function TFTPLister.GetList(const server, dir: string): TStrings;
begin
Result := TStringList.Create;
FFtp.Connect(server);
repeat
FFtp.CallAction;
until FFtp.Connected;
{ until here it's same }
{ Let's send all the commands at once (beware shitty servers, set pipeline to false for them) }
FFtp.Authenticate('anonymous', '');
FFtp.Binary:=True;
FFtp.ChangeDirectory(dir);
FFtp.List();
repeat
FFtp.CallAction;
until FInternalStatus = fsList; // we increate the status per successful operation
Result.Text := FDirList;
FFtp.Disconnect;
end;
end.
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