Chilkat Examples

Chilkat • HOME • .NET Core C# • Android™ • AutoIt • C • C# • C++ • Chilkat2-Python • CkPython • Classic ASP • DataFlex • Delphi ActiveX • Delphi DLL • Go • Java • Lianja • Mono C# • Node.js • Objective-C • PHP ActiveX • PHP Extension • Perl • PowerBuilder • PowerShell • PureBasic • Ruby • SQL Server • Swift 2 • Swift 3,4,5... • Tcl • Unicode C • Unicode C++ • VB.NET • VBScript • Visual Basic 6.0 • Visual FoxPro • Xojo Plugin

Visual FoxPro Examples

Web API Categories

ASN.1
AWS KMS
AWS Misc
Amazon EC2
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Key Vault
Azure Service Bus
Azure Table Service
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Cloud Signature CSC
Code Signing
Compression
DKIM / DomainKey
DNS
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
EBICS
ECC
Ed25519
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
GMail SMTP/IMAP/POP
Geolocation
Google APIs
Google Calendar
Google Cloud SQL
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks
Gzip
HTML-to-XML/Text
HTTP

HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
MS Storage Providers
Microsoft Graph
Misc
NTLM
OAuth1
OAuth2
OIDC
Office365
OneDrive
OpenSSL
Outlook
Outlook Calendar
Outlook Contact
PDF Signatures
PEM
PFX/P12
PKCS11
POP3
PRNG
REST
REST Misc
RSA
SCP
SCard
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
ScMinidriver
Secrets
SharePoint
SharePoint Online
Signing in the Cloud
Socket/SSL/TLS
Spider
Stream
Tar Archive
ULID/UUID
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl
uncategorized

 

 

 

(Visual FoxPro) Create JPK VAT metadata XML

Demonstrates how to create the JPK VAT metadata XML (InitUpload) that will be signed using XADES.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

LOCAL lnSuccess
LOCAL loXml
LOCAL loBdXml
LOCAL loCrypt
LOCAL loZip
LOCAL e
LOCAL loBdZip
LOCAL loPrng
LOCAL loBdAesKey
LOCAL lcIvBytes
LOCAL loCert
LOCAL loPubKey
LOCAL loRsa
LOCAL lcFinalXml

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

* First build an InitUpload XML template

* Use this online tool to generate the code from the sample XML below: 
* Generate Code to Create XML

* <InitUpload xmlns="http://e-dokumenty.mf.gov.pl">
*     <DocumentType>JPK</DocumentType>
*     <Version>01.02.01.20160617</Version>
*     <EncryptionKey algorithm="RSA" encoding="Base64" mode="ECB" padding="PKCS#1">F9EhKFec...uWqAWUIg==</EncryptionKey>
*     <DocumentList>
*         <Document>
*             <FormCode schemaVersion="1-1" systemCode="JPK_VAT (3)">JPK_VAT</FormCode>
*             <FileName>JPK_VAT_3_v1-1_20181201.xml</FileName>
*             <ContentLength>8736</ContentLength>
*             <HashValue algorithm="SHA-256" encoding="Base64">JFDI1pItwh6dj/Xe1uts/x61qnjZ4DLHpkZMhmf1oKQ=</HashValue>
*             <FileSignatureList filesNumber="1">
*                 <Packaging>
*                     <SplitZip mode="zip" type="split"/>
*                 </Packaging>
*                 <Encryption>
*                     <AES block="16" mode="CBC" padding="PKCS#7" size="256">
*                         <IV bytes="16" encoding="Base64">z64oN9zXHt1+S3XACRSCYw==</IV>
*                     </AES>
*                 </Encryption>
*                 <FileSignature>
*                     <OrdinalNumber>1</OrdinalNumber>
*                     <FileName>JPK_VAT_3_v1-1_20181201-000.xml.zip.aes</FileName>
*                     <ContentLength>16</ContentLength>
*                     <HashValue algorithm="MD5" encoding="Base64">5NX0q1935fvMjLFV7E1yDw==</HashValue>
*                 </FileSignature>
*             </FileSignatureList>
*         </Document>
*     </DocumentList>
* </InitUpload>

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Xml')
loXml = CreateObject('Chilkat.Xml')
loXml.Tag = "InitUpload"
loXml.AddAttribute("xmlns","http://e-dokumenty.mf.gov.pl")
loXml.UpdateChildContent("DocumentType","JPK")
loXml.UpdateChildContent("Version","01.02.01.20160617")
loXml.UpdateAttrAt("EncryptionKey",1,"algorithm","RSA")
loXml.UpdateAttrAt("EncryptionKey",1,"encoding","Base64")
loXml.UpdateAttrAt("EncryptionKey",1,"mode","ECB")
loXml.UpdateAttrAt("EncryptionKey",1,"padding","PKCS#1")
loXml.UpdateChildContent("EncryptionKey","TO BE DETERMINED")
loXml.UpdateAttrAt("DocumentList|Document|FormCode",1,"schemaVersion","1-1")
loXml.UpdateAttrAt("DocumentList|Document|FormCode",1,"systemCode","JPK_VAT (3)")
loXml.UpdateChildContent("DocumentList|Document|FormCode","JPK_VAT")
loXml.UpdateChildContent("DocumentList|Document|FileName","JPK_VAT_3_v1-1_20181201.xml")
loXml.UpdateChildContent("DocumentList|Document|ContentLength","9999")
loXml.UpdateAttrAt("DocumentList|Document|HashValue",1,"algorithm","SHA-256")
loXml.UpdateAttrAt("DocumentList|Document|HashValue",1,"encoding","Base64")
loXml.UpdateChildContent("DocumentList|Document|HashValue","TO BE DETERMINED")
loXml.UpdateAttrAt("DocumentList|Document|FileSignatureList",1,"filesNumber","1")
loXml.UpdateAttrAt("DocumentList|Document|FileSignatureList|Packaging|SplitZip",1,"mode","zip")
loXml.UpdateAttrAt("DocumentList|Document|FileSignatureList|Packaging|SplitZip",1,"type","split")
loXml.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES",1,"block","16")
loXml.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES",1,"mode","CBC")
loXml.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES",1,"padding","PKCS#7")
loXml.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES",1,"size","256")
loXml.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES|IV",1,"bytes","16")
loXml.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES|IV",1,"encoding","Base64")
loXml.UpdateChildContent("DocumentList|Document|FileSignatureList|Encryption|AES|IV","TO BE DETERMINED")
loXml.UpdateChildContent("DocumentList|Document|FileSignatureList|FileSignature|OrdinalNumber","1")
loXml.UpdateChildContent("DocumentList|Document|FileSignatureList|FileSignature|FileName","JPK_VAT_3_v1-1_20181201-000.xml.zip.aes")
loXml.UpdateChildContent("DocumentList|Document|FileSignatureList|FileSignature|ContentLength","9999")
loXml.UpdateAttrAt("DocumentList|Document|FileSignatureList|FileSignature|HashValue",1,"algorithm","MD5")
loXml.UpdateAttrAt("DocumentList|Document|FileSignatureList|FileSignature|HashValue",1,"encoding","Base64")
loXml.UpdateChildContent("DocumentList|Document|FileSignatureList|FileSignature|HashValue","TO BE DETERMINED")

* ------------------------------------------------------------
* Step 1: Load our JPK_VAT XML and update the DocumentList|Document|HashValue
* and DocumentList|Document|ContentLength
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.BinData')
loBdXml = CreateObject('Chilkat.BinData')
lnSuccess = loBdXml.LoadFile("qa_data/xml_dsig/jpk_vat/JPK_VAT_3_v1-1_20181201-000.xml")
IF (lnSuccess <> 1) THEN
    ? "Failed to load XML file."
    RELEASE loXml
    RELEASE loBdXml
    CANCEL
ENDIF

loXml.UpdateChildContentInt("DocumentList|Document|ContentLength",loBdXml.NumBytes)

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Crypt2')
loCrypt = CreateObject('Chilkat.Crypt2')
loCrypt.HashAlgorithm = "sha256"
loCrypt.EncodingMode = "base64"
loXml.UpdateChildContent("DocumentList|Document|HashValue",loCrypt.HashBdENC(loBdXml))

* ------------------------------------------------------------
* Step 2: Create a Zip archive containing the XML.
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Zip')
loZip = CreateObject('Chilkat.Zip')
* The filename we pass here doesn't matter because we won't actually be creating a .zip file.
loZip.NewZip("anything.zip")
e = loZip.AppendBd("JPK_VAT_3_v1-1_20181201-000.xml",loBdXml)
RELEASE e
* Write the .zip file to a BinData object.
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.BinData')
loBdZip = CreateObject('Chilkat.BinData')
loZip.WriteBd(loBdZip)

* ------------------------------------------------------------
* Step 3: Generate a random 256-bit AES key (32-bytes)
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Prng')
loPrng = CreateObject('Chilkat.Prng')
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.BinData')
loBdAesKey = CreateObject('Chilkat.BinData')
loPrng.GenRandomBd(32,loBdAesKey)
lcIvBytes = loPrng.GenRandom(16,"base64")

* Store the IV (base64 string) in the XML.
loXml.UpdateChildContent("DocumentList|Document|FileSignatureList|Encryption|AES|IV",lcIvBytes)

* ------------------------------------------------------------
* Step 4: AES encrypt our zip archive (the contents of bdZip)
loCrypt.CipherMode = "cbc"
loCrypt.KeyLength = 256
loCrypt.CryptAlgorithm = "aes"
loCrypt.PaddingScheme = 0
loCrypt.SetEncodedIV(lcIvBytes,"base64")
loCrypt.SetEncodedKey(loBdAesKey.GetEncoded("base64"),"base64")
* AES by definition has a block size of 16.
loCrypt.EncryptBd(loBdZip)

* bdZip now contains the AES encrypted data. 
* Note: This is NOT the same as a zip where the contents are AES encrypted.
* In that case, we have an unencrypted zip structure with AES encrypted files within.
* In our case, the entire zip file image is encrypted.

* Save the bdZip to a file.  This is what will get sent to e-dokumenty.mf.gov.pl
lnSuccess = loBdZip.WriteFile("qa_output/JPK_VAT_3_v1-1_20181201-000.xml.zip.aes")
loXml.UpdateChildContentInt("DocumentList|Document|FileSignatureList|FileSignature|ContentLength",loBdZip.NumBytes)

* ------------------------------------------------------------
* Step 4: RSA Encrypt the AES key using the public key certificate provided by the Ministry of Finance
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Cert')
loCert = CreateObject('Chilkat.Cert')
lnSuccess = loCert.LoadFromFile("qa_data/pem/mf_public_rsa.pem")
IF (lnSuccess <> 1) THEN
    ? loCert.LastErrorText
    RELEASE loXml
    RELEASE loBdXml
    RELEASE loCrypt
    RELEASE loZip
    RELEASE loBdZip
    RELEASE loPrng
    RELEASE loBdAesKey
    RELEASE loCert
    CANCEL
ENDIF

loPubKey = loCert.ExportPublicKey()
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Rsa')
loRsa = CreateObject('Chilkat.Rsa')
loRsa.ImportPublicKeyObj(loPubKey)
RELEASE loPubKey

loRsa.EncodingMode = "base64"
loRsa.LittleEndian = 0
* in-place RSA encrypt the contents of bdAesKey.
loRsa.EncryptBd(loBdAesKey,0)
loXml.UpdateChildContent("EncryptionKey",loBdAesKey.GetEncoded("base64"))

* Step 5: We forgot to get the MD5 hash of the AES encrypted zip.
* (I'm assuming we need the MD5 of the encrypted zip as opposed to the MD5 of the pre-encrypted zip..)
loCrypt.HashAlgorithm = "md5"
loXml.UpdateChildContent("DocumentList|Document|FileSignatureList|FileSignature|HashValue",loCrypt.HashBdENC(loBdZip))

* At this point, the XML is prepared and the AES encrypted image of the zip file is written
* to a file (and also in bdZip).
lcFinalXml = loXml.GetXml()
? lcFinalXml

loXml.SaveXml("qa_output/jpk_vat.xml")

? "Finished."

RELEASE loXml
RELEASE loBdXml
RELEASE loCrypt
RELEASE loZip
RELEASE loBdZip
RELEASE loPrng
RELEASE loBdAesKey
RELEASE loCert
RELEASE loRsa
 

© 2000-2024 Chilkat Software, Inc. All Rights Reserved.