(PHP Extension) Hungary NAV Token Exchange

Demonstrates the tokenExchange request for the Hungarian NAV Online Invoicing System REST API v2.0.

Note: This example requires Chilkat v9.5.0.83 or greater.

For more information, see https://onlineszamla.nav.gov.hu/api/files/container/download/Online%20Szamla_Interfesz%20specifik%C3%A1ci%C3%B3_EN_v2.0.pdf

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<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

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

// Build the following XML:

// Use this online tool to generate code from sample XML: 
// Generate Code to Create XML

// <?xml version="1.0" encoding="UTF-8"?>
// <TokenExchangeRequest xmlns="http://schemas.nav.gov.hu/OSA/2.0/api">
// 	<header>
// 		<requestId>RID896801578348</requestId>
// 		<timestamp>2019-09-11T10:55:31.440Z</timestamp>
// 		<requestVersion>2.0</requestVersion>
// 		<headerVersion>1.0</headerVersion>
// 	</header>
// 	<user>
// 		<login>lwilsmn0uqdxe6u</login>
// 		<passwordHash>2F43840A882CFDB7DB0FEC07D419D030D864B47B6B541DC280EF81B937B7A176E33C052B0D26638CC18A7A2C08D8D311733078A774BF43F6CA57FE8CD74DC28E</passwordHash>
// 		<taxNumber>11111111</taxNumber>
// 		<requestSignature>B4B5E0F197BFFD3DF69BCC98D3BE775F65FD5445EEF95C9D6B6C59425F2B81C4F6DA1FD563B0C7E7D98AF1E1725E5C63C2803B5D3A93D1C02ED354AC92F2CC94</requestSignature>
// 		<!--<signKey>ac-ac3a-7f661bff7d342N43CYX4U9FG</signKey>-->
// 	</user>
// 	<software>
// 		<softwareId>123456789123456789</softwareId>
// 		<softwareName>string</softwareName>
// 		<softwareOperation>LOCAL_SOFTWARE</softwareOperation>
// 		<softwareMainVersion>string</softwareMainVersion>
// 		<softwareDevName>string</softwareDevName>
// 		<softwareDevContact>string</softwareDevContact>
// 		<softwareDevCountryCode>HU</softwareDevCountryCode>
// 		<softwareDevTaxNumber>string</softwareDevTaxNumber>
// 	</software>
// </TokenExchangeRequest>

$crypt = new CkCrypt2();

$dtNow = new CkDateTime();
$dtNow->SetFromCurrentSystemTime();
print $dtNow->getAsTimestamp(false) . "\n";

// The hash algorithm for the password is SHA512 (not SHA3-512).
$crypt->put_HashAlgorithm('sha512');
$crypt->put_EncodingMode('hex');
$myPassword = 'my-password';
$passwordHash = $crypt->hashStringENC($myPassword);

// Generate a random request ID like "RID215118906689"
$prng = new CkPrng();
$sbRequestId = new CkStringBuilder();
$sbRequestId->Append('RID');
$sbRequestId->Append($prng->randomString(12,true,false,false));
print 'generated requestId = ' . $sbRequestId->getAsString() . "\n";

// Calculate the requestSignature
$crypt->put_HashAlgorithm('sha3-512');
$signatureKey = 'ce-8f5e-215119fa7dd621DLMRHRLH2S';

$sbFinalHashBase = new CkStringBuilder();

// First append the timestamp because we are going to remove certain chars/parts.
$sbFinalHashBase->Append($dtNow->getAsTimestamp(false));
$numReplaced = $sbFinalHashBase->Replace('Z','');
$numReplaced = $sbFinalHashBase->Replace('-','');
$numReplaced = $sbFinalHashBase->Replace(':','');
$numReplaced = $sbFinalHashBase->Replace('T','');

// Prepend the requestId and append the signatureKey
$sbFinalHashBase->Prepend($sbRequestId->getAsString());
$sbFinalHashBase->Append($signatureKey);

$requestSignature = $crypt->hashStringENC($sbFinalHashBase->getAsString());

$xml = new CkXml();
$xml->put_Tag('TokenExchangeRequest');
$xml->AddAttribute('xmlns','http://schemas.nav.gov.hu/OSA/2.0/api');
$xml->UpdateChildContent('header|requestId',$sbRequestId->getAsString());
$xml->UpdateChildContent('header|timestamp',$dtNow->getAsTimestamp(false));
$xml->UpdateChildContent('header|requestVersion','2.0');
$xml->UpdateChildContent('header|headerVersion','1.0');
$xml->UpdateChildContent('user|login','lwilsmn0uqdxe6u');
$xml->UpdateChildContent('user|passwordHash',$passwordHash);
$xml->UpdateChildContent('user|taxNumber','11111111');
$xml->UpdateChildContent('user|requestSignature',$requestSignature);
$xml->UpdateChildContent('software|softwareId','123456789123456789');
$xml->UpdateChildContent('software|softwareName','string');
$xml->UpdateChildContent('software|softwareOperation','LOCAL_SOFTWARE');
$xml->UpdateChildContent('software|softwareMainVersion','string');
$xml->UpdateChildContent('software|softwareDevName','string');
$xml->UpdateChildContent('software|softwareDevContact','string');
$xml->UpdateChildContent('software|softwareDevCountryCode','HU');
$xml->UpdateChildContent('software|softwareDevTaxNumber','string');

// POST the XML to https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/tokenExchange
$http = new CkHttp();
$http->put_Accept('application/xml');
$http->SetRequestHeader('Content-Type','application/xml');
$endpoint = 'https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/tokenExchange';
// resp is a CkHttpResponse
$resp = $http->PostXml($endpoint,$xml->getXml(),'utf-8');
if ($http->get_LastMethodSuccess() == false) {
    print $http->lastErrorText() . "\n";
    exit;
}

print 'Response status code = ' . $resp->get_StatusCode() . "\n";

$respXml = new CkXml();
$respXml->LoadXml($resp->bodyStr());
print 'Response body:' . "\n";
print $respXml->getXml() . "\n";

// Save our exchange token to a file to be used for subsequent requests.
$respXml->SaveXml('qa_data/tokens/nav_exchange_token.xml');

// The result looks like this:

// <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
// <TokenExchangeResponse xmlns="http://schemas.nav.gov.hu/OSA/2.0/api" xmlns:ns2="http://schemas.nav.gov.hu/OSA/2.0/data">
//     <header>
//         <requestId>RID789246611489</requestId>
//         <timestamp>2020-03-25T14:14:36Z</timestamp>
//         <requestVersion>2.0</requestVersion>
//         <headerVersion>1.0</headerVersion>
//     </header>
//     <result>
//         <funcCode>OK</funcCode>
//     </result>
//     <software>
//         <softwareId>123456789123456789</softwareId>
//         <softwareName>string</softwareName>
//         <softwareOperation>LOCAL_SOFTWARE</softwareOperation>
//         <softwareMainVersion>string</softwareMainVersion>
//         <softwareDevName>string</softwareDevName>
//         <softwareDevContact>string</softwareDevContact>
//         <softwareDevCountryCode>HU</softwareDevCountryCode>
//         <softwareDevTaxNumber>string</softwareDevTaxNumber>
//     </software>
//     <encodedExchangeToken>2lR5v57Tl ... 9n4tIWCYgjKQ==</encodedExchangeToken>
//     <tokenValidityFrom>2020-03-25T15:14:36.987+01:00</tokenValidityFrom>
//     <tokenValidityTo>2020-03-25T15:19:36.987+01:00</tokenValidityTo>
// </TokenExchangeResponse>

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

$TokenExchangeResponse_xmlns = $respXml->getAttrValue('xmlns');
$TokenExchangeResponse_xmlns_ns2 = $respXml->getAttrValue('xmlns:ns2');
$requestId = $respXml->getChildContent('header|requestId');
$timestamp = $respXml->getChildContent('header|timestamp');
$requestVersion = $respXml->getChildContent('header|requestVersion');
$headerVersion = $respXml->getChildContent('header|headerVersion');
$funcCode = $respXml->getChildContent('result|funcCode');
$softwareId = $respXml->getChildContent('software|softwareId');
$softwareName = $respXml->getChildContent('software|softwareName');
$softwareOperation = $respXml->getChildContent('software|softwareOperation');
$softwareMainVersion = $respXml->getChildContent('software|softwareMainVersion');
$softwareDevName = $respXml->getChildContent('software|softwareDevName');
$softwareDevContact = $respXml->getChildContent('software|softwareDevContact');
$softwareDevCountryCode = $respXml->getChildContent('software|softwareDevCountryCode');
$softwareDevTaxNumber = $respXml->getChildContent('software|softwareDevTaxNumber');
$encodedExchangeToken = $respXml->getChildContent('encodedExchangeToken');
$tokenValidityFrom = $respXml->getChildContent('tokenValidityFrom');
$tokenValidityTo = $respXml->getChildContent('tokenValidityTo');

?>