Pascal (Lazarus/Delphi)

Belgium eHealth Platform - AddressBook - Search for Professionals

See more Belgian eHealth Platform Examples

Demonstrates how to search for professionals using the AddressBook API. 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.CkDateTime,
  Chilkat.HttpResponse,
  Chilkat.BinData,
  Chilkat.Cert,
  Chilkat.Http,
  Chilkat.Xml;

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

procedure RunDemo;
var
  success: Boolean;
  cert: TCert;
  bdSecToken: TBinData;
  startIdx: Integer;
  endIdx: Integer;
  base64_saml_token: string;
  xml: TXml;
  dt: TCkDateTime;
  http: THttp;
  xmlStr: string;
  resp: THttpResponse;

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.
  //  --------------------------------------------------------------------------------

  //  Provide a certificate + private key.
  //  Note: If your certificate + private key is located on a hardware token or smartcard, you can call a different function to load from smartcard..
  cert := TCert.Create;
  success := cert.LoadPfxFile('SSIN=12345678.acc.p12','p12_password');
  if (success = False) then
    begin
      WriteLn(cert.LastErrorText);
      Exit;
    end;

  //  Let's get the SAML Security Token obtained from https://services-acpt.ehealth.fgov.be/IAM/SecurityTokenService/v1/RequestSecurityToken
  //  a very short time ago..

  //  See this example for how we got the SAML security token: eHealth Belgium Request Security Token
  bdSecToken := TBinData.Create;
  success := bdSecToken.LoadFile('qa_data/tokens/ehealth-fgov-be-sectoken.xml');
  if (success = False) then
    begin
      WriteLn('Failed to load SAML security token');
      Exit;
    end;

  //  The SAML security token is just the part from <Assertion ..> ... </Assertion>
  //  So let's get just that part..
  startIdx := bdSecToken.FindString('<Assertion',0,'utf-8');
  if (startIdx < 0) then
    begin
      WriteLn('Did not find the start of the SAML assertion.');
      Exit;
    end;
  endIdx := bdSecToken.FindString('</Assertion>',0,'utf-8');
  if (endIdx < 0) then
    begin
      WriteLn('Did not find the end of the SAML assertion.');
      Exit;
    end;

  //  Adjust the index to the 1st byte after "</Assertion>"
  endIdx := endIdx + 12;
  base64_saml_token := bdSecToken.GetEncodedChunk(startIdx,endIdx - startIdx,'base64');

  WriteLn(base64_saml_token);

  //  Our SOAP request will look like this:

  //  The SOAP request to search for professionals looks like this:

  //  <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:add="urn:be:fgov:ehealth:addressbook:protocol:v1">
  //      <soapenv:Header>
  //  	      <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
  //  	         <wsse:BinarySecurityToken
  //  	            ValueType="http://docs.oasis-open.org/wss/oasis-wss-saml-token-profile-1.0#SAMLAssertionID"
  //  	            EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary">BASE64_SAML_TOKEN</wsse:BinarySecurityToken>
  //  	      </wsse:Security>
  //      </soapenv:Header>
  //      <soapenv:Body>
  //          <add:SearchProfessionalsRequest Id="bdc38ae62-3e7f-4f80-80f7-c3e745500fa3" IssueInstant="2016-03-23T18:49:26.968+01:00" Offset="0" MaxElements="100">
  //              <add:SSIN>74062423769</add:SSIN>
  //          </add:SearchProfessionalsRequest>
  //      </soapenv:Body>
  //  </soapenv:Envelope>

  xml := TXml.Create;
  xml.Tag := 'soapenv:Envelope';
  xml.UpdateAttrAt('soapenv:Header|wsse:Security',True,'xmlns:wsse','http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd');
  xml.UpdateAttrAt('soapenv:Header|wsse:Security|wsse:BinarySecurityToken',True,'ValueType','http://docs.oasis-open.org/wss/oasis-wss-saml-token-profile-1.0#SAMLAssertionID');
  xml.UpdateAttrAt('soapenv:Header|wsse:Security|wsse:BinarySecurityToken',True,'EncodingType','http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary');

  xml.UpdateChildContent('soapenv:Header|wsse:Security|wsse:BinarySecurityToken',base64_saml_token);

  xml.UpdateAttrAt('soapenv:Body|add:SearchProfessionalsRequest',True,'Id','bdc38ae62-3e7f-4f80-80f7-c3e745500fa3');

  dt := TCkDateTime.Create;
  dt.SetFromCurrentSystemTime();
  xml.UpdateAttrAt('soapenv:Body|add:SearchProfessionalsRequest',True,'IssueInstant',dt.GetAsTimestamp(True));

  xml.UpdateAttrAt('soapenv:Body|add:SearchProfessionalsRequest',True,'Offset','0');
  xml.UpdateAttrAt('soapenv:Body|add:SearchProfessionalsRequest',True,'MaxElements','100');
  xml.UpdateChildContent('soapenv:Body|add:SearchProfessionalsRequest|urn:SSIN','74062423769');

  WriteLn(xml.GetXml());

  http := THttp.Create;

  success := http.SetSslClientCert(cert);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  http.SetRequestHeader('Content-Type','text/xml');
  http.SetRequestHeader('SOAPAction','urn:be:fgov:ehealth:addressbook:protocol:v1:searchProfessionals');

  xmlStr := xml.GetXml();
  resp := THttpResponse.Create;
  success := http.HttpStr('POST','https://services.ehealth.fgov.be/AddressBook/v1',xmlStr,'utf-8','application/xml',resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  WriteLn(resp.BodyStr);
  WriteLn('response status code = ' + resp.StatusCode);


  cert.Free;
  bdSecToken.Free;
  xml.Free;
  dt.Free;
  http.Free;
  resp.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.