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(Chilkat2-Python) Sign XML for Zakat, Tax and Customs Authority (ZATCA)See more ZATCA ExamplesDemonstrates how to sign XML for Zakat, Tax and Customs Authority (ZATCA).
import sys import chilkat2 # This example requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. success = True # Load XML to be signed... sbXml = chilkat2.StringBuilder() success = sbXml.LoadFile("qa_data/xml_dsig_valid_samples/UBL_Saudi_ZATCA_Zakat_Tax_and_Customs_Authority_toBeSigned.xml","utf-8") if (success == False): print("Failed to load XML file to be signed.") sys.exit() # Loads XML containing the following (with data modified from the original sample). # <?xml version="1.0" encoding="UTF-8"?> # <Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2" xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2" xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" xmlns:ext="urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2"><ext:UBLExtensions> # <ext:UBLExtension> # <ext:ExtensionURI>urn:oasis:names:specification:ubl:dsig:enveloped:xades</ext:ExtensionURI> # <ext:ExtensionContent> # <sig:UBLDocumentSignatures xmlns:sig="urn:oasis:names:specification:ubl:schema:xsd:CommonSignatureComponents-2" xmlns:sac="urn:oasis:names:specification:ubl:schema:xsd:SignatureAggregateComponents-2" xmlns:sbc="urn:oasis:names:specification:ubl:schema:xsd:SignatureBasicComponents-2"> # <sac:SignatureInformation> # <cbc:ID>urn:oasis:names:specification:ubl:signature:1</cbc:ID> # <sbc:ReferencedSignatureID>urn:oasis:names:specification:ubl:signature:Invoice</sbc:ReferencedSignatureID> # # </sac:SignatureInformation> # </sig:UBLDocumentSignatures> # </ext:ExtensionContent> # </ext:UBLExtension> # </ext:UBLExtensions> # # <cbc:ProfileID>reporting:1.0</cbc:ProfileID> # <cbc:ID>100</cbc:ID> # <cbc:UUID>3cf5ee18-ee25-44ea-a444-2c37ba7f28be</cbc:UUID> # <cbc:IssueDate>2021-04-25</cbc:IssueDate> # <cbc:IssueTime>15:30:00</cbc:IssueTime> # <cbc:InvoiceTypeCode name="0100000">388</cbc:InvoiceTypeCode> # <cbc:DocumentCurrencyCode>SAR</cbc:DocumentCurrencyCode> # <cbc:TaxCurrencyCode>SAR</cbc:TaxCurrencyCode> # <cbc:LineCountNumeric>2</cbc:LineCountNumeric> # <cac:AdditionalDocumentReference> # <cbc:ID>ICV</cbc:ID> # <cbc:UUID>46531</cbc:UUID> # </cac:AdditionalDocumentReference> # <cac:AdditionalDocumentReference> # <cbc:ID>PIH</cbc:ID> # <cac:Attachment> # <cbc:EmbeddedDocumentBinaryObject mimeCode="text/plain">NWZl......NTdlOQ==</cbc:EmbeddedDocumentBinaryObject> # </cac:Attachment> # </cac:AdditionalDocumentReference> # # # <cac:AdditionalDocumentReference> # <cbc:ID>QR</cbc:ID> # <cac:Attachment> # <cbc:EmbeddedDocumentBinaryObject mimeCode="text/plain">ARlBbC........FAau5g</cbc:EmbeddedDocumentBinaryObject> # </cac:Attachment> # </cac:AdditionalDocumentReference><cac:Signature> # <cbc:ID>urn:oasis:names:specification:ubl:signature:Invoice</cbc:ID> # <cbc:SignatureMethod>urn:oasis:names:specification:ubl:dsig:enveloped:xades</cbc:SignatureMethod> # </cac:Signature><cac:AccountingSupplierParty> # <cac:Party> # <cac:PartyIdentification> # <cbc:ID schemeID="MLS">123457890</cbc:ID> # </cac:PartyIdentification> # <cac:PostalAddress> # <cbc:StreetName>King Abdulaziz Road</cbc:StreetName> # <cbc:BuildingNumber>9999</cbc:BuildingNumber> # <cbc:PlotIdentification>9999</cbc:PlotIdentification> # <cbc:CitySubdivisionName>Al Amal</cbc:CitySubdivisionName> # <cbc:CityName>Riyadh</cbc:CityName> # <cbc:PostalZone>12643</cbc:PostalZone> # <cbc:CountrySubentity>Riyadh Region</cbc:CountrySubentity> # <cac:Country> # <cbc:IdentificationCode>SA</cbc:IdentificationCode> # </cac:Country> # </cac:PostalAddress> # <cac:PartyTaxScheme> # <cbc:CompanyID>300099999900003</cbc:CompanyID> # <cac:TaxScheme> # <cbc:ID>VAT</cbc:ID> # </cac:TaxScheme> # </cac:PartyTaxScheme> # <cac:PartyLegalEntity> # <cbc:RegistrationName>Example Co. LTD</cbc:RegistrationName> # </cac:PartyLegalEntity> # </cac:Party> # </cac:AccountingSupplierParty> # <cac:AccountingCustomerParty> # <cac:Party> # <cac:PartyIdentification> # <cbc:ID schemeID="SAG">123C12345678</cbc:ID> # </cac:PartyIdentification> # <cac:PostalAddress> # <cbc:StreetName>King Abdullah Road</cbc:StreetName> # <cbc:BuildingNumber>9999</cbc:BuildingNumber> # <cbc:PlotIdentification>9999</cbc:PlotIdentification> # <cbc:CitySubdivisionName>Al Mursalat</cbc:CitySubdivisionName> # <cbc:CityName>Riyadh</cbc:CityName> # <cbc:PostalZone>11564</cbc:PostalZone> # <cbc:CountrySubentity>Riyadh Region</cbc:CountrySubentity> # <cac:Country> # <cbc:IdentificationCode>SA</cbc:IdentificationCode> # </cac:Country> # </cac:PostalAddress> # <cac:PartyTaxScheme> # <cac:TaxScheme> # <cbc:ID>VAT</cbc:ID> # </cac:TaxScheme> # </cac:PartyTaxScheme> # <cac:PartyLegalEntity> # <cbc:RegistrationName>EXAMPLE MARKETS</cbc:RegistrationName> # </cac:PartyLegalEntity> # </cac:Party> # </cac:AccountingCustomerParty> # <cac:Delivery> # <cbc:ActualDeliveryDate>2022-04-25</cbc:ActualDeliveryDate> # </cac:Delivery> # <cac:PaymentMeans> # <cbc:PaymentMeansCode>42</cbc:PaymentMeansCode> # </cac:PaymentMeans> # <cac:TaxTotal> # <cbc:TaxAmount currencyID="SAR">135.00</cbc:TaxAmount> # <cac:TaxSubtotal> # <cbc:TaxableAmount currencyID="SAR">900.00</cbc:TaxableAmount> # <cbc:TaxAmount currencyID="SAR">135.00</cbc:TaxAmount> # <cac:TaxCategory> # <cbc:ID>S</cbc:ID> # <cbc:Percent>15</cbc:Percent> # <cac:TaxScheme> # <cbc:ID>VAT</cbc:ID> # </cac:TaxScheme> # </cac:TaxCategory> # </cac:TaxSubtotal> # </cac:TaxTotal> # <cac:TaxTotal> # <cbc:TaxAmount currencyID="SAR">135.00</cbc:TaxAmount> # </cac:TaxTotal> # <cac:LegalMonetaryTotal> # <cbc:LineExtensionAmount currencyID="SAR">900.00</cbc:LineExtensionAmount> # <cbc:TaxExclusiveAmount currencyID="SAR">900.00</cbc:TaxExclusiveAmount> # <cbc:TaxInclusiveAmount currencyID="SAR">1035.00</cbc:TaxInclusiveAmount> # <cbc:AllowanceTotalAmount currencyID="SAR">0.00</cbc:AllowanceTotalAmount> # <cbc:PayableAmount currencyID="SAR">1035.00</cbc:PayableAmount> # </cac:LegalMonetaryTotal> # <cac:InvoiceLine> # <cbc:ID>1</cbc:ID> # <cbc:InvoicedQuantity unitCode="PCE">1</cbc:InvoicedQuantity> # <cbc:LineExtensionAmount currencyID="SAR">200.00</cbc:LineExtensionAmount> # <cac:TaxTotal> # <cbc:TaxAmount currencyID="SAR">30.00</cbc:TaxAmount> # <cbc:RoundingAmount currencyID="SAR">230.00</cbc:RoundingAmount> # </cac:TaxTotal> # <cac:Item> # <cbc:Name>Item A</cbc:Name> # <cac:ClassifiedTaxCategory> # <cbc:ID>S</cbc:ID> # <cbc:Percent>15</cbc:Percent> # <cac:TaxScheme> # <cbc:ID>VAT</cbc:ID> # </cac:TaxScheme> # </cac:ClassifiedTaxCategory> # </cac:Item> # <cac:Price> # <cbc:PriceAmount currencyID="SAR">200.00</cbc:PriceAmount> # </cac:Price> # </cac:InvoiceLine> # <cac:InvoiceLine> # <cbc:ID>2</cbc:ID> # <cbc:InvoicedQuantity unitCode="PCE">2</cbc:InvoicedQuantity> # <cbc:LineExtensionAmount currencyID="SAR">700.00</cbc:LineExtensionAmount> # <cac:TaxTotal> # <cbc:TaxAmount currencyID="SAR">105.00</cbc:TaxAmount> # <cbc:RoundingAmount currencyID="SAR">805.00</cbc:RoundingAmount> # </cac:TaxTotal> # <cac:Item> # <cbc:Name>Item B</cbc:Name> # <cac:ClassifiedTaxCategory> # <cbc:ID>S</cbc:ID> # <cbc:Percent>15</cbc:Percent> # <cac:TaxScheme> # <cbc:ID>VAT</cbc:ID> # </cac:TaxScheme> # </cac:ClassifiedTaxCategory> # </cac:Item> # <cac:Price> # <cbc:PriceAmount currencyID="SAR">350.00</cbc:PriceAmount> # </cac:Price> # </cac:InvoiceLine> # </Invoice> gen = chilkat2.XmlDSigGen() gen.SigLocation = "Invoice|ext:UBLExtensions|ext:UBLExtension|ext:ExtensionContent|sig:UBLDocumentSignatures|sac:SignatureInformation" gen.SigLocationMod = 0 gen.SigId = "signature" gen.SigNamespacePrefix = "ds" gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#" gen.SignedInfoCanonAlg = "C14N_11" gen.SignedInfoDigestMethod = "sha256" # Create an Object to be added to the Signature. object1 = chilkat2.Xml() object1.Tag = "xades:QualifyingProperties" object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#") object1.AddAttribute("Target","signature") object1.UpdateAttrAt("xades:SignedProperties",True,"Id","xadesSignedProperties") object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime","TO BE GENERATED BY CHILKAT") object1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestMethod",True,"Algorithm","http://www.w3.org/2001/04/xmlenc#sha256") object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT") object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509IssuerName","TO BE GENERATED BY CHILKAT") object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509SerialNumber","TO BE GENERATED BY CHILKAT") gen.AddObject("",object1.GetXml(),"","") # -------- Reference 1 -------- xml1 = chilkat2.Xml() xml1.Tag = "ds:Transforms" xml1.UpdateAttrAt("ds:Transform",True,"Algorithm","http://www.w3.org/TR/1999/REC-xpath-19991116") xml1.UpdateChildContent("ds:Transform|ds:XPath","not(//ancestor-or-self::ext:UBLExtensions)") xml1.UpdateAttrAt("ds:Transform[1]",True,"Algorithm","http://www.w3.org/TR/1999/REC-xpath-19991116") xml1.UpdateChildContent("ds:Transform[1]|ds:XPath","not(//ancestor-or-self::cac:Signature)") xml1.UpdateAttrAt("ds:Transform[2]",True,"Algorithm","http://www.w3.org/TR/1999/REC-xpath-19991116") xml1.UpdateChildContent("ds:Transform[2]|ds:XPath","not(//ancestor-or-self::cac:AdditionalDocumentReference[cbc:ID='QR'])") xml1.UpdateAttrAt("ds:Transform[3]",True,"Algorithm","http://www.w3.org/2006/12/xml-c14n11") gen.AddSameDocRef2("","sha256",xml1,"") gen.SetRefIdAttr("","invoiceSignedData") # -------- Reference 2 -------- gen.AddObjectRef("xadesSignedProperties","sha256","","","http://www.w3.org/2000/09/xmldsig#SignatureProperties") # Provide a certificate + private key. (PFX password is test123) certFromPfx = chilkat2.Cert() success = certFromPfx.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123") if (success != True): print(certFromPfx.LastErrorText) sys.exit() # Alternatively, if your certificate and private key are in separate PEM files, do this: cert = chilkat2.Cert() success = cert.LoadFromFile("qa_data/zatca/cert.pem") if (success != True): print(cert.LastErrorText) sys.exit() print(cert.SubjectCN) # Load the private key. privKey = chilkat2.PrivateKey() success = privKey.LoadPemFile("qa_data/zatca/ec-secp256k1-priv-key.pem") if (success != True): print(privKey.LastErrorText) sys.exit() print("Key Type: " + privKey.KeyType) # Associate the private key with the certificate. success = cert.SetPrivateKey(privKey) if (success != True): print(cert.LastErrorText) sys.exit() # The certificate passed to SetX509Cert must have an associated private key. # If the cert was loaded from a PFX, then it should automatically has an associated private key. # If the cert was loaded from PEM, then the private key was explicitly associated as shown above. success = gen.SetX509Cert(cert,True) if (success != True): print(gen.LastErrorText) sys.exit() gen.KeyInfoType = "X509Data" gen.X509Type = "Certificate" # ---------------- This is important ----------------------------------------- # Starting in Chilkat v9.5.0.92, add the "ZATCA" behavior to produce the format required by ZATCA. gen.Behaviors = "IndentedSignature,TransformSignatureXPath,ZATCA" # ---------------------------------------------------------------------------- # Sign the XML... success = gen.CreateXmlDSigSb(sbXml) if (success != True): print(gen.LastErrorText) sys.exit() # ----------------------------------------------- # Save the signed XML to a file. success = sbXml.WriteFile("qa_output/signedXml.xml","utf-8",False) print(sbXml.GetAsString()) # ---------------------------------------- # Verify the signatures we just produced... verifier = chilkat2.XmlDSig() success = verifier.LoadSignatureSb(sbXml) if (success != True): print(verifier.LastErrorText) sys.exit() # ---------------- This is important ----------------------------------------- # Starting in Chilkat v9.5.0.92, specify "ZATCA" in uncommon options # to validate signed XML according to ZATCA needs. # ---------------------------------------------------------------------------- verifier.UncommonOptions = "ZATCA" numSigs = verifier.NumSignatures verifyIdx = 0 while verifyIdx < numSigs : verifier.Selector = verifyIdx verified = verifier.VerifySignature(True) if (verified != True): print(verifier.LastErrorText) sys.exit() verifyIdx = verifyIdx + 1 print("All signatures were successfully verified.") |
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