Delphi ActiveX

Execute an FTP Upload Plan

Demonstrates the Chilkat Ftp2.PutPlan method, which executes a previously created upload plan. The first argument is the plan text and the second is the local path of a completion log that records each successful operation.

Note: The local paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: The completion log is what makes plan execution resumable: each successful upload is recorded, so if a run is interrupted, re-executing the same plan skips the operations already logged and continues where it left off — invaluable for a large transfer over a flaky connection. The plan's stored absolute remote paths are used regardless of the current remote directory, so execution is independent of session state.

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var
success: Integer;
ftp: TChilkatFtp2;
sbPlan: TChilkatStringBuilder;
plan: WideString;

begin
success := 0;

//  Demonstrates the Ftp2.PutPlan method, which executes a previously created upload plan.  The 1st
//  argument is the plan text and the 2nd is the local path of a completion log.

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;

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

//  Load a plan that was previously created with CreatePlan.
sbPlan := TChilkatStringBuilder.Create(Self);
success := sbPlan.LoadFile('qa_output/upload_plan.txt','utf-8');
if (success = 0) then
  begin
    Memo1.Lines.Add(sbPlan.LastErrorText);
    Exit;
  end;
plan := sbPlan.GetAsString();

//  Execute the plan.  Each successful operation is recorded in the completion log, which lets an
//  interrupted run be resumed without repeating completed uploads.  The plan uses its stored
//  absolute remote paths even if the current remote directory has changed.
success := ftp.PutPlan(plan,'qa_output/upload_done.log');
if (success = 0) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end;
Memo1.Lines.Add('Upload plan executed.');

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