Pascal (Lazarus/Delphi)

Verify Factura Electronica Chile SII (iso-8859-1)

See more XAdES Examples

Demonstrates how to verify SII XML stored as iso-8859-1 having just a single signature. 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.XmlDSig,
  Chilkat.StringBuilder;

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

procedure RunDemo;
var
  success: Boolean;
  sbXml: TStringBuilder;
  dsig: TXmlDSig;
  bVerifyReferenceDigests: Boolean;
  bVerified: Boolean;

begin
  success := False;

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

  //  The signed XML to be verified in this example contains the following:

  //  <?xml version="1.0" encoding="ISO-8859-1"?>
  //  <DTE version="1.0" xmlns="http://www.sii.cl/SiiDte">
  //  <Documento ID="F13T34">
  //  ...
  //  </Documento>
  //  <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
  //  ....
  //  </Signature>
  //  </DTE>

  //  Load the signed XML into sbXml -- telling Chilkat to interpret the bytes as iso-8859-1 
  sbXml := TStringBuilder.Create;
  success := sbXml.LoadFile('qa_data/xml_dsig/sii_cl/signed1.xml','iso-8859-1');
  if (success = False) then
    begin
      WriteLn('Failed to load input file.');
      Exit;
    end;

  dsig := TXmlDSig.Create;

  success := dsig.LoadSignatureSb(sbXml);
  if (success <> True) then
    begin
      WriteLn(dsig.LastErrorText);
      Exit;
    end;

  bVerifyReferenceDigests := True;
  bVerified := dsig.VerifySignature(bVerifyReferenceDigests);
  if (bVerified = False) then
    begin
      WriteLn(dsig.LastErrorText);
      Exit;
    end;

  WriteLn('Signature verified = ' + bVerified);


  sbXml.Free;
  dsig.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.