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Visual FoxPro

Hungary NAV Manage Annulment Request

See more Hungary NAV Invoicing Examples

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

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LOCAL lnSuccess
LOCAL loCrypt
LOCAL loDtNow
LOCAL lcMyPassword
LOCAL lcPasswordHash
LOCAL loPrng
LOCAL loSbRequestId
LOCAL lcSignatureKey
LOCAL loSbFinalHashBase
LOCAL lnNumReplaced
LOCAL lcInvoiceOperation
LOCAL lcInvoiceData
LOCAL loSbHashBase
LOCAL lcFirstHash
LOCAL lcRequestSignature
LOCAL loXmlExchangeToken
LOCAL lcEncodedEncryptedExchangeToken
LOCAL loBdExchangeToken
LOCAL lcExchangeToken
LOCAL loXml
LOCAL loHttp
LOCAL lcEndpoint
LOCAL loResp
LOCAL loRespXml
LOCAL lcManageAnnulmentResponse_xmlns
LOCAL lcManageAnnulmentResponse_xmlns_ns2
LOCAL lcRequestId
LOCAL lcTimestamp
LOCAL lcRequestVersion
LOCAL lcHeaderVersion
LOCAL lcFuncCode
LOCAL lcSoftwareId
LOCAL lcSoftwareName
LOCAL lcSoftwareOperation
LOCAL lcSoftwareMainVersion
LOCAL lcSoftwareDevName
LOCAL lcSoftwareDevContact
LOCAL lcSoftwareDevCountryCode
LOCAL lcSoftwareDevTaxNumber
LOCAL lcTransactionId

lnSuccess = 0

* 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"?>
* <ManageAnnulmentRequest xmlns="http://schemas.nav.gov.hu/OSA/2.0/api">
* 	<header>
* 		<requestId>RID338592103413</requestId>
* 		<timestamp>2019-09-11T13:37:09.385Z</timestamp>
* 		<requestVersion>2.0</requestVersion>
* 		<headerVersion>1.0</headerVersion>
* 	</header>
* 	<user>
* 		<login>lwilsmn0uqdxe6u</login>
* 		<passwordHash>2F43840A882CFDB7DB0 ... F6CA57FE8CD74DC28E</passwordHash>
* 		<taxNumber>11111111</taxNumber>
* 		<requestSignature>A297E3BD9 ... 1959ADFAF5</requestSignature>
* 	</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>
* 	<exchangeToken>dbd03076-3a9b-4312-bbbb-0cee3a6472572P11CS49ASIL</exchangeToken>
* 	<annulmentOperations>
* 		<annulmentOperation>
* 			<index>1</index>
* 			<annulmentOperation>ANNUL</annulmentOperation>
* 			<invoiceAnnulment>PD94bWwgdm ... ubnVsbWVudD4=</invoiceAnnulment>
* 		</annulmentOperation>
* 	</annulmentOperations>
* </ManageAnnulmentRequest>

loCrypt = CreateObject('Chilkat.Crypt2')

loDtNow = CreateObject('Chilkat.CkDateTime')
loDtNow.SetFromCurrentSystemTime()
? loDtNow.GetAsTimestamp(0)

* The hash algorithm for the password is SHA512 (not SHA3-512).
loCrypt.HashAlgorithm = "sha512"
loCrypt.EncodingMode = "hex"
lcMyPassword = "my-password"
lcPasswordHash = loCrypt.HashStringENC(lcMyPassword)

* Generate a random request ID like "RID215118906689"
loPrng = CreateObject('Chilkat.Prng')
loSbRequestId = CreateObject('Chilkat.StringBuilder')
loSbRequestId.Append("RID")
loSbRequestId.Append(loPrng.RandomString(12,1,0,0))
? "generated requestId = " + loSbRequestId.GetAsString()

* Calculate the requestSignature
loCrypt.HashAlgorithm = "sha3-512"
lcSignatureKey = "ce-8f5e-215119fa7dd621DLMRHRLH2S"

loSbFinalHashBase = CreateObject('Chilkat.StringBuilder')

* First append the timestamp because we are going to remove certain chars/parts.
loSbFinalHashBase.Append(loDtNow.GetAsTimestamp(0))
lnNumReplaced = loSbFinalHashBase.Replace("Z","")
lnNumReplaced = loSbFinalHashBase.Replace("-","")
lnNumReplaced = loSbFinalHashBase.Replace(":","")
lnNumReplaced = loSbFinalHashBase.Replace("T","")

* Prepend the requestId and append the signatureKey
loSbFinalHashBase.Prepend(loSbRequestId.GetAsString())
loSbFinalHashBase.Append(lcSignatureKey)

* Calculate first (and only) index hash.
lcInvoiceOperation = "ANNUL"
lcInvoiceData = "PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiIHN0YW5kYWxvbmU9InllcyI/Pg0KPEludm9pY2VBbm51bG1lbnQgeG1sbnM9Imh0dHA6Ly9zY2hlbWFzLm5hdi5nb3YuaHUvT1NBLzIuMC9hbm51bCI+DQoJCTxhbm51bG1lbnRSZWZlcmVuY2U+MjIyMjIyMjI8L2FubnVsbWVudFJlZmVyZW5jZT4NCgkJPGFubnVsbWVudFRpbWVzdGFtcD4yMDE4LTA2LTE4VDA5OjEwOjQ1LjMwOVo8L2FubnVsbWVudFRpbWVzdGFtcD4NCgkJPGFubnVsbWVudENvZGU+RVJSQVRJQ19EQVRBPC9hbm51bG1lbnRDb2RlPg0KCQk8YW5udWxtZW50UmVhc29uPmNyZWF0ZSBzemFtbGEgYW5udWw8L2FubnVsbWVudFJlYXNvbj4NCjwvSW52b2ljZUFubnVsbWVudD4="

loSbHashBase = CreateObject('Chilkat.StringBuilder')
loSbHashBase.Append(lcInvoiceOperation)
loSbHashBase.Append(lcInvoiceData)
lcFirstHash = loCrypt.HashStringENC(loSbHashBase.GetAsString())

* Append the index hash to the final hash base.
loSbFinalHashBase.Append(lcFirstHash)

* Get our request signature (using sha3-512 because our HashAlgorithm was set to "sha3-512" up above...)
lcRequestSignature = loCrypt.HashStringENC(loSbFinalHashBase.GetAsString())

* Load our recently obtained exchange token.
* See Hungary NAV Invoicing Token Exchange Sample Code
loXmlExchangeToken = CreateObject('Chilkat.Xml')
lnSuccess = loXmlExchangeToken.LoadXmlFile("qa_data/tokens/nav_exchange_token.xml")
IF (lnSuccess = 0) THEN
    ? loXmlExchangeToken.LastErrorText
    RELEASE loCrypt
    RELEASE loDtNow
    RELEASE loPrng
    RELEASE loSbRequestId
    RELEASE loSbFinalHashBase
    RELEASE loSbHashBase
    RELEASE loXmlExchangeToken
    CANCEL
ENDIF

* Get the base64 encoded/encrypted exchange token.
* IMPORTANT:  Make sure to use the exchange token before it expires.
* If it expired, then get a new one..
lcEncodedEncryptedExchangeToken = loXmlExchangeToken.GetChildContent("encodedExchangeToken")

* Decode to binary.
loBdExchangeToken = CreateObject('Chilkat.BinData')
loBdExchangeToken.AppendEncoded(lcEncodedEncryptedExchangeToken,"base64")

* Decrypt using your 16-digit replacement key:
loCrypt.CryptAlgorithm = "aes"
loCrypt.CipherMode = "ecb"
loCrypt.KeyLength = 128
loCrypt.EncodingMode = "base64"
* Pass your 16-digit replacement key here:
loCrypt.SetEncodedKey("99952BBAAAAA8XYZ","ascii")
loCrypt.DecryptBd(loBdExchangeToken)
lcExchangeToken = loBdExchangeToken.GetString("utf-8")
? "exchange token = " + lcExchangeToken

* Now build the XML..
loXml = CreateObject('Chilkat.Xml')
loXml.Tag = "ManageAnnulmentRequest"
loXml.AddAttribute("xmlns","http://schemas.nav.gov.hu/OSA/2.0/api")
loXml.UpdateChildContent("header|requestId",loSbRequestId.GetAsString())
loXml.UpdateChildContent("header|timestamp",loDtNow.GetAsTimestamp(0))
loXml.UpdateChildContent("header|requestVersion","2.0")
loXml.UpdateChildContent("header|headerVersion","1.0")
loXml.UpdateChildContent("user|login","lwilsmn0uqdxe6u")
loXml.UpdateChildContent("user|passwordHash",lcPasswordHash)
loXml.UpdateChildContent("user|taxNumber","11111111")
loXml.UpdateChildContent("user|requestSignature",lcRequestSignature)
loXml.UpdateChildContent("software|softwareId","123456789123456789")
loXml.UpdateChildContent("software|softwareName","string")
loXml.UpdateChildContent("software|softwareOperation","LOCAL_SOFTWARE")
loXml.UpdateChildContent("software|softwareMainVersion","string")
loXml.UpdateChildContent("software|softwareDevName","string")
loXml.UpdateChildContent("software|softwareDevContact","string")
loXml.UpdateChildContent("software|softwareDevCountryCode","HU")
loXml.UpdateChildContent("software|softwareDevTaxNumber","string")
loXml.UpdateChildContent("exchangeToken",lcExchangeToken)
loXml.UpdateChildContent("annulmentOperations|annulmentOperation|index","1")
loXml.UpdateChildContent("annulmentOperations|annulmentOperation|annulmentOperation",lcInvoiceOperation)
loXml.UpdateChildContent("annulmentOperations|annulmentOperation|invoiceAnnulment",lcInvoiceData)

* POST the XML to https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/manageAnnulment
loHttp = CreateObject('Chilkat.Http')
loHttp.Accept = "application/xml"
lcEndpoint = "https://api-test.onlineszamla.nav.gov.hu/invoiceService/v2/manageAnnulment"
loResp = CreateObject('Chilkat.HttpResponse')
lnSuccess = loHttp.HttpStr("POST",lcEndpoint,loXml.GetXml(),"utf-8","application/xml",loResp)
IF (lnSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loCrypt
    RELEASE loDtNow
    RELEASE loPrng
    RELEASE loSbRequestId
    RELEASE loSbFinalHashBase
    RELEASE loSbHashBase
    RELEASE loXmlExchangeToken
    RELEASE loBdExchangeToken
    RELEASE loXml
    RELEASE loHttp
    RELEASE loResp
    CANCEL
ENDIF

? "Response status code = " + STR(loResp.StatusCode)

loRespXml = CreateObject('Chilkat.Xml')
loRespXml.LoadXml(loResp.BodyStr)
? "Response body:"
? loRespXml.GetXml()

* The result looks like this:

* <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
* <ManageAnnulmentResponse xmlns="http://schemas.nav.gov.hu/OSA/2.0/api" xmlns:ns2="http://schemas.nav.gov.hu/OSA/2.0/data">
*     <header>
*         <requestId>RID465317110495</requestId>
*         <timestamp>2020-03-25T15:08:40Z</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>
*     <transactionId>2WT6XG9LQ0U9VQNA</transactionId>
* </ManageAnnulmentResponse>

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

lcManageAnnulmentResponse_xmlns = loRespXml.GetAttrValue("xmlns")
lcManageAnnulmentResponse_xmlns_ns2 = loRespXml.GetAttrValue("xmlns:ns2")
lcRequestId = loRespXml.GetChildContent("header|requestId")
lcTimestamp = loRespXml.GetChildContent("header|timestamp")
lcRequestVersion = loRespXml.GetChildContent("header|requestVersion")
lcHeaderVersion = loRespXml.GetChildContent("header|headerVersion")
lcFuncCode = loRespXml.GetChildContent("result|funcCode")
lcSoftwareId = loRespXml.GetChildContent("software|softwareId")
lcSoftwareName = loRespXml.GetChildContent("software|softwareName")
lcSoftwareOperation = loRespXml.GetChildContent("software|softwareOperation")
lcSoftwareMainVersion = loRespXml.GetChildContent("software|softwareMainVersion")
lcSoftwareDevName = loRespXml.GetChildContent("software|softwareDevName")
lcSoftwareDevContact = loRespXml.GetChildContent("software|softwareDevContact")
lcSoftwareDevCountryCode = loRespXml.GetChildContent("software|softwareDevCountryCode")
lcSoftwareDevTaxNumber = loRespXml.GetChildContent("software|softwareDevTaxNumber")
lcTransactionId = loRespXml.GetChildContent("transactionId")

RELEASE loCrypt
RELEASE loDtNow
RELEASE loPrng
RELEASE loSbRequestId
RELEASE loSbFinalHashBase
RELEASE loSbHashBase
RELEASE loXmlExchangeToken
RELEASE loBdExchangeToken
RELEASE loXml
RELEASE loHttp
RELEASE loResp
RELEASE loRespXml