Pascal (Lazarus/Delphi)

Subject Alternative Name for ICP Brasil Certs

See more Certificates Examples

Demonstrates how to access the multiple names contained in the Subject Alternative Name of a certificate. This example is for an ICP Brasil certificate. 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.Cert,
  Chilkat.Xml;

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

procedure RunDemo;
var
  success: Boolean;
  cert: TCert;
  subjectAltNameXml: string;
  xml: TXml;
  oid: string;
  name: string;
  i: Integer;
  count_i: Integer;

begin
  success := False;

  cert := TCert.Create;

  success := cert.LoadFromFile('qa_data/certs/testIcpBrasil.cer');
  if (success = False) then
    begin
      WriteLn(cert.LastErrorText);
      Exit;
    end;

  //  If the cert's Subject Alternative Name contains multiple values, each specified by an OID,
  //  then the Rfc822Name property returns XML.
  subjectAltNameXml := cert.Rfc822Name;

  WriteLn(subjectAltNameXml);

  //  Here's a sample of the subjectAltNameXml:

  //  <SubjectAltName>
  //      <name type="oid" oid="2.16.76.1.3.4">290999653223955019700000000000000000000150424SRJUXPTS</name>
  //      <name type="oid" oid="2.16.76.1.3.2">JOAO SILVA</name>
  //      <name type="oid" oid="2.16.76.1.3.3">02408939000115</name>
  //      <name type="oid" oid="2.16.76.1.3.7">000000000000</name>
  //  </SubjectAltName>

  //  The XML can be parsed like this:

  xml := TXml.Create;
  xml.LoadXml(subjectAltNameXml);

  i := 0;
  count_i := xml.NumChildrenHavingTag('name');
  while i < count_i do
    begin
      xml.I := i;
      oid := xml.ChilkatPath('name[i]|(oid)');
      name := xml.GetChildContent('name[i]');
      WriteLn(oid + ': ' + name);
      i := i + 1;
    end;



  cert.Free;
  xml.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.