(Delphi ActiveX) SOAP with MTOM XOP Attachment

Demonstrates how to send the following sample SOAP request with an MTOM/XOP attachment:

Content-Type: Multipart/Related; start-info="text/xml"; type="application/xop+xml"; boundary="----=_Part_0_1744155.1118953559416"
Content-Length: 3453
SOAPAction: "some-SOAP-action"

------=_Part_1_4558657.1118953559446
Content-Type: application/xop+xml; type="text/xml"; charset=utf-8

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <Detail xmlns="http://example.org/mtom/data">
      <image>
        <xop:Include xmlns:xop="http://www.w3.org/2004/08/xop/include" href="cid:5aeaa450-17f0-4484-b845-a8480c363444@example.org" />
      </image>
    </Detail>
  </soap:Body>
</soap:Envelope>

------=_Part_1_4558657.1118953559446
Content-Type: image/jpeg
Content-ID: <5aeaa450-17f0-4484-b845-a8480c363444@example.org>


... binary data ...

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
http: TChilkatHttp;
soapXml: TChilkatXml;
xmlBody: WideString;
req: TChilkatHttpRequest;
useTls: Integer;
resp: TChilkatHttpResponse;
xmlResponse: TChilkatXml;

begin
success := 0;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

http := TChilkatHttp.Create(Self);

soapXml := TChilkatXml.Create(Self);

soapXml.Tag := 'soap:Envelope';
success := soapXml.AddAttribute('xmlns:soap','http://schemas.xmlsoap.org/soap/envelope/');

soapXml.NewChild2('soap:Body','');
success := soapXml.GetChild2(0);

soapXml.NewChild2('Detail','');
success := soapXml.GetChild2(0);
success := soapXml.AddAttribute('xmlns','http://example.org/mtom/data');

soapXml.NewChild2('image','');
success := soapXml.GetChild2(0);

soapXml.NewChild2('xop:Include','');
success := soapXml.GetChild2(0);
success := soapXml.AddAttribute('xmlns:xop','http://www.w3.org/2004/08/xop/include');
success := soapXml.AddAttribute('href','cid:5aeaa450-17f0-4484-b845-a8480c363444@example.org');

soapXml.GetRoot2();
soapXml.EmitXmlDecl := 0;

xmlBody := soapXml.GetXml();
Memo1.Lines.Add(xmlBody);

req := TChilkatHttpRequest.Create(Self);
req.HttpVerb := 'POST';
req.Path := '/something/someTarget';

req.ContentType := 'multipart/related; start-info="text/xml"; type="application/xop+xml"';
req.AddHeader('SOAPAction','some-SOAP-action');

success := req.AddStringForUpload2('','',xmlBody,'utf-8','application/xop+xml; type="text/xml"; charset=utf-8');

// The bytes will be sent as binary (not base64 encoded).
success := req.AddFileForUpload2('','qa_data/jpg/starfish.jpg','image/jpeg');

// The JPEG data is the 2nd sub-part, and therefore is at index 1 (the first sub-part is at index 0)
success := req.AddSubHeader(1,'Content-ID','<5aeaa450-17f0-4484-b845-a8480c363444@example.org>');

http.FollowRedirects := 1;

// For debugging, set the SessionLogFilename property
// to see the exact HTTP request and response in a log file.
// (Given that the request contains binary data, you'll need an editor
// that can gracefully view text + binary data.  I use EmEditor for most simple editing tasks..)
http.SessionLogFilename := 'qa_output/mtom_sessionLog.txt';

useTls := 1;
// Note: Please don't run this example without changing the domain to your own domain...
resp := TChilkatHttpResponse.Create(Self);
success := http.HttpSReq('www.example.org',443,useTls,req.ControlInterface,resp.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

xmlResponse := TChilkatXml.Create(Self);
success := xmlResponse.LoadXml(resp.BodyStr);
Memo1.Lines.Add(xmlResponse.GetXml());
end;