Http Post with indy

Question

I have a simple php script on my web server which I need to upload a file using HTTP POST, which I am doing in Delphi.

Here is my code with Indy but aparantely it wo

Answer 1

You lost 2 characters '--'. It is better to do so:

http.Request.ContentType:='multipart/form-data;boundary='+myBoundery;
fname := CRLF + '--' + myBoundery + CRLF + 'Content-Disposition: form-data; name=\"uploadedfile\";filename=\"test.png"' + CRLF;

Answer 2

Calling a PHP from Indy can fail because of the User-Agent, then you get 403 error.

Try this way, it fixed it for me:

var Answer: string;
begin
  GetHTML:= TIdHTTP.create(Nil);
  try
    GetHTML.Request.UserAgent:= 'Mozilla/3.0';
    Answer:= GetHTML.Get('http://www.testserver.com/test.php?id=1');
  finally
    GetHTML.Free;
  end;
end;

Answer 3

Indy has TIdMultipartFormDataStream for this purpose:

procedure TForm1.SendPostData;
var
  Stream: TStringStream;
  Params: TIdMultipartFormDataStream;
begin
  Stream := TStringStream.Create('');
  try
   Params := TIdMultipartFormDataStream.Create;
   try
    Params.AddFile('File1', 'C:\test.txt','application/octet-stream');
    try
     HTTP.Post('http://posttestserver.com/post.php', Params, Stream);
    except
     on E: Exception do
       ShowMessage('Error encountered during POST: ' + E.Message);
    end;
    ShowMessage(Stream.DataString);
   finally
    Params.Free;
   end;
  finally
   Stream.Free;
  end;
end;