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Delphi DLL

POST GovTalk XML to https://vrep1-t.cssz.cz/VREP/submission

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Demonstrates how to POST a GovTalk XML message to https://vrep1-t.cssz.cz/VREP/submission

PDF Documentation is at http://www.cssz.cz/NR/rdonlyres/0ACDBB35-F78A-4B1A-8258-7249B55C788E/0/csszpodavacidotazovaciprotokol20110608.pdf

Chilkat Delphi DLL Downloads

Delphi DLL
uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Gzip, HttpResponse, Http, BinData, Cert, Crypt2, Xml;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
xml: HCkXml;
bd: HCkBinData;
gzip: HCkGzip;
cert: HCkCert;
crypt: HCkCrypt2;
http: HCkHttp;
resp: HCkHttpResponse;
statusCode: Integer;

begin
success := False;

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

// First prepare the XML body that is to be GZip compressed and then encrypted.
// Build the following XML..

// Use the online tool at http://tools.chilkat.io/xmlCreate.cshtml
// to generate the XML creation code that follows this XML.

// <?xml version="1.0" encoding="utf-8" ?>
// <pvpoj xmlns="http://schemas.cssz.cz/POJ/PVPOJ2016">
//     <prehled verze="2016.0" typPrehledu="N">
//         <okres>
//             <kodOSSZ>119</kodOSSZ>
//             <nazevOSSZ>Praha 9</nazevOSSZ>
//         </okres>
//         <obdobi>
//             <mesic>1</mesic>
//             <rok>2018</rok>
//         </obdobi>
//         <zamestnavatel>
//             <vs>9992002999</vs>
//             <IC>49710999</IC>
//             <nazev>SIT &amp; KHASO v.o.s.</nazev>
//             <adresa>
//                 <ulice>Na sp�leni�ti</ulice>
//                 <cisloDomu>517</cisloDomu>
//                 <obec>Praha 9</obec>
//                 <PSC>19032</PSC>
//                 <stat>CZ</stat>
//             </adresa>
//         </zamestnavatel>
//         <pojistne>
//             <uhrnVymerovacichZakladu>1104</uhrnVymerovacichZakladu>
//             <pojistneZamestnance>175</pojistneZamestnance>
//             <pojistneZamestnavatele>2826</pojistneZamestnavatele>
//             <pojistneCelkem>4301</pojistneCelkem>
//         </pojistne>
//         <platebniUdaje>
//             <bankaCisloUctu>012345789/0800</bankaCisloUctu>
//         </platebniUdaje>
//         <pracovnik>
//             <jmeno>Matt</jmeno>
//             <prijmeni>Smith</prijmeni>
//             <telefon>606796999</telefon>
//             <email>admin@chilkatsoft.com</email>
//         </pracovnik>
//         <datumVyplneni>2018-03-02</datumVyplneni>
//         <poznamka />
//     </prehled>
// </pvpoj>

xml := CkXml_Create();
CkXml_putTag(xml,'pvpoj');
CkXml_AddAttribute(xml,'xmlns','http://schemas.cssz.cz/POJ/PVPOJ2016');
CkXml_UpdateAttrAt(xml,'prehled',True,'verze','2016.0');
CkXml_UpdateAttrAt(xml,'prehled',True,'typPrehledu','N');
CkXml_UpdateChildContent(xml,'prehled|okres|kodOSSZ','119');
CkXml_UpdateChildContent(xml,'prehled|okres|nazevOSSZ','Praha 9');
CkXml_UpdateChildContent(xml,'prehled|obdobi|mesic','1');
CkXml_UpdateChildContent(xml,'prehled|obdobi|rok','2018');
CkXml_UpdateChildContent(xml,'prehled|zamestnavatel|vs','9992002999');
CkXml_UpdateChildContent(xml,'prehled|zamestnavatel|IC','49710999');
CkXml_UpdateChildContent(xml,'prehled|zamestnavatel|nazev','SIT & KHASO v.o.s.');
CkXml_UpdateChildContent(xml,'prehled|zamestnavatel|adresa|ulice','Na sp�leni�ti');
CkXml_UpdateChildContent(xml,'prehled|zamestnavatel|adresa|cisloDomu','517');
CkXml_UpdateChildContent(xml,'prehled|zamestnavatel|adresa|obec','Praha 9');
CkXml_UpdateChildContent(xml,'prehled|zamestnavatel|adresa|PSC','19032');
CkXml_UpdateChildContent(xml,'prehled|zamestnavatel|adresa|stat','CZ');
CkXml_UpdateChildContent(xml,'prehled|pojistne|uhrnVymerovacichZakladu','1104');
CkXml_UpdateChildContent(xml,'prehled|pojistne|pojistneZamestnance','175');
CkXml_UpdateChildContent(xml,'prehled|pojistne|pojistneZamestnavatele','2826');
CkXml_UpdateChildContent(xml,'prehled|pojistne|pojistneCelkem','4301');
CkXml_UpdateChildContent(xml,'prehled|platebniUdaje|bankaCisloUctu','012345789/0800');
CkXml_UpdateChildContent(xml,'prehled|pracovnik|jmeno','Matt');
CkXml_UpdateChildContent(xml,'prehled|pracovnik|prijmeni','Smith');
CkXml_UpdateChildContent(xml,'prehled|pracovnik|telefon','606796999');
CkXml_UpdateChildContent(xml,'prehled|pracovnik|email','admin@chilkatsoft.com');
CkXml_UpdateChildContent(xml,'prehled|datumVyplneni','2018-03-02');
CkXml_UpdateChildContent(xml,'prehled|poznamka','');

CkXml_putEmitCompact(xml,True);
CkXml_putEmitXmlDecl(xml,False);

// Emit the XML into bd.
bd := CkBinData_Create();
CkBinData_AppendString(bd,CkXml__getXml(xml),'utf-8');

// GZip compress the bd contents.
gzip := CkGzip_Create();
// The Filename is not an actual file on disk, but is just the filename string stored in the gzip compressed format.
CkGzip_putFilename(gzip,'pvpoj.xml');
CkGzip_CompressBd(gzip,bd);

// Encrypt the contents using the government provided cert.
cert := CkCert_Create();
success := CkCert_LoadFromFile(cert,'qa_data/govs/czech/pvpoj/DISCSSZ2019.cer');
if (success = False) then
  begin
    Memo1.Lines.Add(CkCert__lastErrorText(cert));
    Exit;
  end;

crypt := CkCrypt2_Create();
CkCrypt2_putCryptAlgorithm(crypt,'pki');

CkCrypt2_putPkcs7CryptAlg(crypt,'aes');
CkCrypt2_putKeyLength(crypt,256);

success := CkCrypt2_SetEncryptCert(crypt,cert);
if (success = False) then
  begin
    Memo1.Lines.Add(CkCrypt2__lastErrorText(crypt));
    Exit;
  end;

success := CkCrypt2_EncryptBd(crypt,bd);
if (success = False) then
  begin
    Memo1.Lines.Add(CkCrypt2__lastErrorText(crypt));
    Exit;
  end;

// At this point, bd contains the gzip compressed / encrypted XML.

// Build the following GovTalkMessage XML:

// <?xml version="1.0" encoding="utf-8"?>
// <GovTalkMessage xmlns="http://www.govtalk.gov.uk/CM/envelope">
//   <EnvelopeVersion>2.0</EnvelopeVersion>
//   <Header>
//     <MessageDetails>
//       <Class>CSSZ_PVPOJ</Class>
//       <Qualifier>request</Qualifier>
//       <Function>submit</Function>
//       <TransactionID />
//       <AuditID />
//       <CorrelationID />
//       <ResponseEndPoint PollInterval="0" />
//       <Transformation>XML</Transformation>
//       <GatewayTest />
//       <GatewayTimestamp />
//     </MessageDetails>
//     <SenderDetails>
//       <IDAuthentication>
//         <SenderID />
//         <Authentication>
//           <Method>clear</Method>
//           <Role />
//           <Value />
//         </Authentication>
//       </IDAuthentication>
//       <X509Certificate />
//       <EmailAddress>admin@chilkatsoft.com</EmailAddress>
//     </SenderDetails>
//   </Header>
//   <GovTalkDetails>
//     <Keys>
//       <Key Type="vars">9992888999</Key>
//     </Keys>
//     <GatewayAdditions />
//   </GovTalkDetails>
//   <Body>
//     <Message xmlns="http://www.cssz.cz/XMLSchema/envelope" version="1.2" eType="PVPOJ16">
//       <Header>
//         <Signature xmlns:dt="urn:schemas-microsoft-com:datatypes" dt:dt="bin.base64">Signature goes here</Signature>
//         <Vendor productName="Abc xyz. s r.o. JKL .NET Client" version="6.0.2.0" />
//       </Header>
//       <Body xmlns:dt="urn:schemas-microsoft-com:datatypes" encrypted="yes" contentEncoding="gzip" dt:dt="bin.base64">Base64 goes here
// </Body>
//     </Message>
//   </Body>
// </GovTalkMessage>
// 

// Use the online tool at http://tools.chilkat.io/xmlCreate.cshtml
// to generate this code.

CkXml_Clear(xml);
CkXml_putTag(xml,'GovTalkMessage');
CkXml_AddAttribute(xml,'xmlns','http://www.govtalk.gov.uk/CM/envelope');
CkXml_UpdateChildContent(xml,'EnvelopeVersion','2.0');
CkXml_UpdateChildContent(xml,'Header|MessageDetails|Class','CSSZ_PVPOJ');
CkXml_UpdateChildContent(xml,'Header|MessageDetails|Qualifier','request');
CkXml_UpdateChildContent(xml,'Header|MessageDetails|Function','submit');
CkXml_UpdateChildContent(xml,'Header|MessageDetails|TransactionID','');
CkXml_UpdateChildContent(xml,'Header|MessageDetails|AuditID','');
CkXml_UpdateChildContent(xml,'Header|MessageDetails|CorrelationID','');
CkXml_UpdateAttrAt(xml,'Header|MessageDetails|ResponseEndPoint',True,'PollInterval','0');
CkXml_UpdateChildContent(xml,'Header|MessageDetails|Transformation','XML');
CkXml_UpdateChildContent(xml,'Header|MessageDetails|GatewayTest','');
CkXml_UpdateChildContent(xml,'Header|MessageDetails|GatewayTimestamp','');
CkXml_UpdateChildContent(xml,'Header|SenderDetails|IDAuthentication|SenderID','');
CkXml_UpdateChildContent(xml,'Header|SenderDetails|IDAuthentication|Authentication|Method','clear');
CkXml_UpdateChildContent(xml,'Header|SenderDetails|IDAuthentication|Authentication|Role','');
CkXml_UpdateChildContent(xml,'Header|SenderDetails|IDAuthentication|Authentication|Value','');
CkXml_UpdateChildContent(xml,'Header|SenderDetails|X509Certificate','');
CkXml_UpdateChildContent(xml,'Header|SenderDetails|EmailAddress','admin@chilkatsoft.com');
CkXml_UpdateAttrAt(xml,'GovTalkDetails|Keys|Key',True,'Type','vars');
CkXml_UpdateChildContent(xml,'GovTalkDetails|Keys|Key','9992888999');
CkXml_UpdateChildContent(xml,'GovTalkDetails|GatewayAdditions','');
CkXml_UpdateAttrAt(xml,'Body|Message',True,'xmlns','http://www.cssz.cz/XMLSchema/envelope');
CkXml_UpdateAttrAt(xml,'Body|Message',True,'version','1.2');
CkXml_UpdateAttrAt(xml,'Body|Message',True,'eType','PVPOJ16');
CkXml_UpdateAttrAt(xml,'Body|Message|Header|Signature',True,'xmlns:dt','urn:schemas-microsoft-com:datatypes');
CkXml_UpdateAttrAt(xml,'Body|Message|Header|Signature',True,'dt:dt','bin.base64');
CkXml_UpdateChildContent(xml,'Body|Message|Header|Signature','Signature goes here');
CkXml_UpdateAttrAt(xml,'Body|Message|Header|Vendor',True,'productName','Abc xyz. s r.o. JKL .NET Client');
CkXml_UpdateAttrAt(xml,'Body|Message|Header|Vendor',True,'version','6.0.2.0');
CkXml_UpdateAttrAt(xml,'Body|Message|Body',True,'xmlns:dt','urn:schemas-microsoft-com:datatypes');
CkXml_UpdateAttrAt(xml,'Body|Message|Body',True,'encrypted','yes');
CkXml_UpdateAttrAt(xml,'Body|Message|Body',True,'contentEncoding','gzip');
CkXml_UpdateAttrAt(xml,'Body|Message|Body',True,'dt:dt','bin.base64');

// Insert the contents of bd here:
CkXml_UpdateChildContent(xml,'Body|Message|Body',CkBinData__getEncoded(bd,'base64'));

// Show the XML to be sent to https://vrep1-t.cssz.cz/VREP/submission
CkXml_putEmitCompact(xml,False);
Memo1.Lines.Add(CkXml__getXml(xml));
CkXml_putEmitCompact(xml,True);

// ----------------------------------------------------------
// POST the XML to https://vrep1-t.cssz.cz/VREP/submission

http := CkHttp_Create();
resp := CkHttpResponse_Create();
success := CkHttp_HttpStr(http,'POST','https://vrep1-t.cssz.cz/VREP/submission',CkXml__getXml(xml),'utf-8','application/xml',resp);
if (success = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

// Examine the response status code (200 = success)
statusCode := CkHttpResponse_getStatusCode(resp);
Memo1.Lines.Add('Response status code = ' + IntToStr(statusCode));

// The response body should be XML.
// Load it into a Chilkat XML object to get it in indented format for viewing..
CkXml_Clear(xml);
CkXml_LoadXml(xml,CkHttpResponse__bodyStr(resp));
CkXml_putEmitCompact(xml,False);
Memo1.Lines.Add(CkXml__getXml(xml));

// Output is:
// <GovTalkMessage xmlns="http://www.govtalk.gov.uk/CM/envelope">
//     <EnvelopeVersion>2.0</EnvelopeVersion>
//     <Header>
//         <MessageDetails>
//             <Class>CSSZ_PVPOJ</Class>
//             <Qualifier>acknowledgement</Qualifier>
//             <Function>submit</Function>
//             <TransactionID />
//             <CorrelationID>1B6336D5ACE949CDB944424CB2D54401</CorrelationID>
//             <ResponseEndPoint PollInterval="60">https://vrep1-t.cssz.cz/VREP/poll</ResponseEndPoint>
//             <GatewayTimestamp>2018-07-02T22:23:41.310</GatewayTimestamp>
//         </MessageDetails>
//         <SenderDetails />
//     </Header>
//     <GovTalkDetails>
//         <Keys />
//     </GovTalkDetails>
//     <Body>
//         <Signature xmlns="http://www.podani.gov.cz/TxE/timestamp" Version="1.0">
//             <DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1" />
//             <TimeStamp>
//                 <date>20180702</date>
//                 <time>22:23:41</time>
//             </TimeStamp>
//             <SignatureValue>MIIORwYJKoZIhvcNAQcCo ... bBNE6MeXmk2siMuvY=</SignatureValue>
//         </Signature>
//     </Body>
// </GovTalkMessage>
// 

// Hint: Use the online tool at http://tools.chilkat.io/xmlParse.cshtml
// to generate XML parsing code based on a sample response..

CkXml_Dispose(xml);
CkBinData_Dispose(bd);
CkGzip_Dispose(gzip);
CkCert_Dispose(cert);
CkCrypt2_Dispose(crypt);
CkHttp_Dispose(http);
CkHttpResponse_Dispose(resp);

end;