Pascal (Lazarus/Delphi)
Pascal (Lazarus/Delphi)
Get an FTP Listing Entry's Last-Modified Time
See more FTP Examples
Demonstrates the Chilkat Ftp2.GetLastModifiedTimeStr method, which returns the last-modified time of a cached directory-listing entry as an RFC 822 date-time string. The only argument is a zero-based index.
Background: The last-modified time is the workhorse timestamp: it updates whenever a file's contents change and is what sync and mirror logic compares to decide whether a file needs re-transferring. It is the most reliably reported of the three across FTP servers, and the RFC 822 string carries a timezone so comparisons are well defined.
Chilkat Pascal (Lazarus/Delphi) Downloads
program ChilkatDemo;
// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.
{$IFDEF FPC}
{$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}
uses
{$IFDEF UNIX}
cthreads,
{$ENDIF}
SysUtils,
CkDllLoader,
Chilkat.Ftp2;
// ---------------------------------------------------------------------------
procedure RunDemo;
var
success: Boolean;
ftp: TFtp2;
n: Integer;
i: Integer;
name: string;
lastModified: string;
begin
success := False;
// Demonstrates the Ftp2.GetLastModifiedTimeStr method, which returns the last-modified time of a
// cached directory-listing entry as an RFC 822 date-time string. The only argument is a
// zero-based index.
ftp := TFtp2.Create;
ftp.Hostname := 'ftp.example.com';
ftp.Username := 'myFtpLogin';
// Normally you would not hard-code the password in source. You should instead obtain it
// from an interactive prompt, environment variable, or a secrets vault.
ftp.Password := 'myPassword';
success := ftp.Connect();
if (success = False) then
begin
WriteLn(ftp.LastErrorText);
Exit;
end;
success := ftp.ChangeRemoteDir('public_html');
if (success = False) then
begin
WriteLn(ftp.LastErrorText);
Exit;
end;
// GetDirCount retrieves the directory listing on the first call and returns the number of
// entries. A negative return indicates failure.
n := ftp.GetDirCount();
if (n < 0) then
begin
WriteLn(ftp.LastErrorText);
Exit;
end;
for i := 0 to n - 1 do
begin
name := ftp.GetFilename(i);
// The value is an RFC 822 string such as "Fri, 21 Nov 1997 09:55:06 -0600".
lastModified := ftp.GetLastModifiedTimeStr(i);
WriteLn(name + ' modified ' + lastModified);
end;
success := ftp.Disconnect();
if (success = False) then
begin
WriteLn(ftp.LastErrorText);
Exit;
end;
ftp.Free;
end;
// ---------------------------------------------------------------------------
begin
try
RunDemo;
except
on E: Exception do
WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
end;
WriteLn;
{$IFDEF MSWINDOWS}
WriteLn('Press Enter to exit...');
ReadLn;
{$ENDIF}
end.