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Pascal (Lazarus/Delphi)

Create Signed SOAP XML for Albanian Fiscalization Service

See more XAdES Examples

This example is created for a customer that needs to send signed billing/invoicing SOAP XML requests to http://efiskalizimi-test.tatime.gov.al:80/FiscalizationService

The example demonstrates how to create and signed the SOAP XML message that is to be sent.

Chilkat Pascal (Lazarus/Delphi) Downloads

Pascal (Lazarus/Delphi)
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.XmlDSigGen,
  Chilkat.HttpResponse,
  Chilkat.StringBuilder,
  Chilkat.Cert,
  Chilkat.Http,
  Chilkat.Xml;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  xmlToSign: TXml;
  gen: TXmlDSigGen;
  cert: TCert;
  sbXml: TStringBuilder;
  strXml: string;
  responseStatusCode: Integer;
  http: THttp;
  endPoint: string;
  resp: THttpResponse;
  xmlResp: TXml;

begin
  success := False;

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

  //  --------------------------------------------------------------------------------
  //  Also see Chilkat's Online WSDL Code Generator
  //  to generate code and SOAP Request and Response XML for each operation in a WSDL.
  //  --------------------------------------------------------------------------------

  //  We want to build and send a signed SOAP XML that looks like the following:

  //  <?xml version="1.0" encoding="utf-8"?>
  //  <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
  //      <SOAP-ENV:Header/>
  //      <SOAP-ENV:Body>
  //          <RegisterWTNRequest xmlns="https://eFiskalizimi.tatime.gov.al/FiscalizationService/schema" xmlns:ns2="http://www.w3.org/2000/09/xmldsig#" Id="Request">
  //              <Header SendDateTime="2019-09-03T14:19:01+02:00" UUID="42db3af5-0d9f-4dea-95b4-4b947ab8d8e7"/>
  //              <WTN BusinUnit="bb123bb123" DateTimeCreated="2019-09-03T14:19:01+02:00" DestinAddr="Destination address" 
  //  			DestinCity="Destination city" IsAfterDel="false" OperatorCode="oo123oo123" 
  //  			SoftNum="ss123ss123" StartAddr="Start address" StartCity="Start city" TransDate="2019-09-03T14:19:01+02:00" 
  //  			VehPlates="AA0000AA" WTNIC="5C5E58580D0A24E1F7A5E5E011929511" WTNICSignature="82D69C38206D ... F5FCA48" WTNNum="12345678901">
  //                  <Issuer NUIS="I12345678I" Name="Issuer name"/>
  //                  <Items>
  //                      <I C="501234567890" N="Item name" Q="1.0" U="piece"/>
  //                  </Items>
  //              </WTN>
  //              <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
  //                  <SignedInfo>
  //                      <CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
  //                      <SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/>
  //                      <Reference URI="#Request">
  //                          <Transforms>
  //                              <Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
  //                              <Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
  //                          </Transforms>
  //                          <DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
  //                          <DigestValue>aNa0r4RW04BlsAciTUrWHGW9PADskl2op315BAQ0hTg=</DigestValue>
  //                      </Reference>
  //                  </SignedInfo>
  //                  <SignatureValue>4/j/d4j/5xCJ2YUP+XTC6li0B94...........................KESd38NT5+puArBcNgLYIjLx/dh6Q==</SignatureValue>
  //                  <KeyInfo>
  //                      <X509Data>
  //                          <X509Certificate>MIIE6TCCAtGgAwIBAgICEA8wDQYJKoZIhvcNA......................uoqWsSuLmA==</X509Certificate>
  //                      </X509Data>
  //                  </KeyInfo>
  //              </Signature>
  //          </RegisterWTNRequest>
  //      </SOAP-ENV:Body>
  //  </SOAP-ENV:Envelope>

  success := True;
  //  Create the XML to be signed...
  xmlToSign := TXml.Create;
  xmlToSign.Tag := 'SOAP-ENV:Envelope';
  xmlToSign.AddAttribute('xmlns:SOAP-ENV','http://schemas.xmlsoap.org/soap/envelope/');
  xmlToSign.UpdateChildContent('SOAP-ENV:Header','');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest',True,'xmlns','https://eFiskalizimi.tatime.gov.al/FiscalizationService/schema');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest',True,'xmlns:ns2','http://www.w3.org/2000/09/xmldsig#');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest',True,'Id','Request');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|Header',True,'SendDateTime','2019-09-03T14:19:01+02:00');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|Header',True,'UUID','42db3af5-0d9f-4dea-95b4-4b947ab8d8e7');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'BusinUnit','bb123bb123');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'DateTimeCreated','2019-09-03T14:19:01+02:00');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'DestinAddr','Destination address');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'DestinCity','Destination city');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'IsAfterDel','false');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'OperatorCode','oo123oo123');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'SoftNum','ss123ss123');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'StartAddr','Start address');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'StartCity','Start city');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'TransDate','2019-09-03T14:19:01+02:00');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'VehPlates','AA0000AA');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'WTNIC','5C5E58580D0A24E1F7A5E5E011929511');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'WTNICSignature','82D69C38206D ... F5FCA48');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN',True,'WTNNum','12345678901');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN|Issuer',True,'NUIS','I12345678I');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN|Issuer',True,'Name','Issuer name');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN|Items|I',True,'C','501234567890');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN|Items|I',True,'N','Item name');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN|Items|I',True,'Q','1.0');
  xmlToSign.UpdateAttrAt('SOAP-ENV:Body|RegisterWTNRequest|WTN|Items|I',True,'U','piece');

  gen := TXmlDSigGen.Create;

  gen.SigLocation := 'SOAP-ENV:Envelope|SOAP-ENV:Body|RegisterWTNRequest';
  gen.SigLocationMod := 0;
  gen.SigNamespacePrefix := '';
  gen.SigNamespaceUri := 'http://www.w3.org/2000/09/xmldsig#';
  gen.SignedInfoCanonAlg := 'EXCL_C14N';
  gen.SignedInfoDigestMethod := 'sha256';

  //  -------- Reference 1 --------
  gen.AddSameDocRef('Request','sha256','EXCL_C14N','','');

  //  Provide a certificate + private key. (PFX password is test123)
  cert := TCert.Create;
  success := cert.LoadPfxFile('qa_data/pfx/cert_test123.pfx','test123');
  if (success = False) then
    begin
      WriteLn(cert.LastErrorText);
      Exit;
    end;

  gen.SetX509Cert(cert,True);

  gen.KeyInfoType := 'X509Data';
  gen.X509Type := 'Certificate';

  //  Load XML to be signed...
  sbXml := TStringBuilder.Create;
  xmlToSign.GetXmlSb(sbXml);

  gen.Behaviors := 'CompactSignedXml,ForceAddEnvelopedSignatureTransform';

  //  Sign the XML...
  success := gen.CreateXmlDSigSb(sbXml);
  if (success = False) then
    begin
      WriteLn(gen.LastErrorText);
      Exit;
    end;

  //  -----------------------------------------------
  //  Now to send the SOAP request....

  //  Note: Chilkat did not actually test this by sending the request to the server.
  //  The example is a best-guess for how to do it...

  strXml := sbXml.GetAsString();

  //  We'll need to add this in the HTTP header:
  //  SOAPAction: "https://eFiskalizimi.tatime.gov.al/FiscalizationService/RegisterWTN"

  //  Note: This is for the RegisterWTN request.

  //  You may wish to load the WSDL at https://efiskalizimi-test.tatime.gov.al/FiscalizationService-v1/FiscalizationService.wsdl into the SoapUI application to see 
  //  the SOAP requests..
  http := THttp.Create;
  http.SetRequestHeader('SOAPAction','https://eFiskalizimi.tatime.gov.al/FiscalizationService/RegisterWTN');

  //  The testing endpoint for this soap service is likely:
  endPoint := 'https://efiskalizimi-test.tatime.gov.al/FiscalizationService-v1';

  resp := THttpResponse.Create;
  success := http.HttpStr('POST',endPoint,strXml,'utf-8','text/xml',resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  responseStatusCode := resp.StatusCode;

  //  Check that the responseStatusCode equals 200...
  WriteLn('Response Status Code: ' + responseStatusCode);

  //  Examine the exact HTTP header sent with the POST like this:
  WriteLn('LastHeader:');
  WriteLn(http.LastHeader);

  //  Examine the XML returned by the web service:
  WriteLn('XML Response:');
  xmlResp := TXml.Create;
  xmlResp.LoadXml(resp.BodyStr);
  WriteLn(xmlResp.GetXml());

  //  Use this online tool to generate parsing code from response XML: 
  //  Generate Parsing Code from XML


  xmlToSign.Free;
  gen.Free;
  cert.Free;
  sbXml.Free;
  http.Free;
  resp.Free;
  xmlResp.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.