Delphi ActiveX

Clear the FTP Session Log

Demonstrates the Chilkat Ftp2.ClearSessionLog method, which clears the in-memory FTP protocol log collected while KeepSessionLog is enabled. It takes no arguments.

Background: With session logging on, the SessionLog accumulates the full FTP command/reply conversation, which is invaluable for diagnosing a failed transfer. Over a long-lived session it grows unbounded, so clearing it frees memory — and, more usefully, lets you capture the log for one specific operation in isolation by clearing just before and reading just after.

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var
success: Integer;
ftp: TChilkatFtp2;

begin
success := 0;

//  Demonstrates the Ftp2.ClearSessionLog method, which clears the in-memory FTP protocol log.  It
//  takes no arguments and is a void method.

ftp := TChilkatFtp2.Create(Self);

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 = 0) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end;

//  The SessionLog accumulates the FTP protocol conversation when KeepSessionLog is enabled, which
//  is useful for debugging.
ftp.KeepSessionLog := 1;

//  ... perform some operations ...

//  Clear the log, for example before starting a new logical operation whose log you want to
//  capture in isolation.
ftp.ClearSessionLog();
Memo1.Lines.Add('Session log cleared.');

success := ftp.Disconnect();
if (success = 0) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end;