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(Lianja) Create ITIDA Signed JSON and Send to ETA (Egypt Tax Authority) PortalSee more Egypt ITIDA ExamplesDemonstrates how to create a .p7s signature that fits Egypt's ITIDA requirements where Chilkat automatically does the ITIDA JSON canonicalization. Also shows the code to send to the ETA Portal.
// This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Indicate that utf-8 is desired for strings passed in and out of Chilkat. loGlob = createobject("CkGlobal") loGlob.DefaultUtf8 = .T. loCrypt = createobject("CkCrypt2") loCrypt.VerboseLogging = .T. loCert = createobject("CkCert") loCert.VerboseLogging = .T. // Set the smart card PIN, which will be needed for signing. loCert.SmartCardPin = "12345678" // There are many ways to load the certificate. // This example was created for a customer using an ePass2003 USB token. // Assuming the USB token is the only source of a hardware-based private key.. llSuccess = loCert.LoadFromSmartcard("") if (llSuccess <> .T.) then ? loCert.LastErrorText release loGlob release loCrypt release loCert return endif // Tell the crypt class to use this cert. llSuccess = loCrypt.SetSigningCert(loCert) if (llSuccess <> .T.) then ? loCrypt.LastErrorText release loGlob release loCrypt release loCert return endif loCmsOptions = createobject("CkJsonObject") // Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used. loCmsOptions.UpdateBool("DigestData",.T.) loCmsOptions.UpdateBool("OmitAlgorithmIdNull",.T.) // Indicate that we are passing normal JSON and we want Chilkat do automatically // do the ITIDA JSON canonicalization: loCmsOptions.UpdateBool("CanonicalizeITIDA",.T.) loCrypt.CmsOptions = loCmsOptions.Emit() // The CadesEnabled property applies to all methods that create CMS/PKCS7 signatures. // To create a CAdES-BES signature, set this property equal to true. loCrypt.CadesEnabled = .T. loCrypt.HashAlgorithm = "sha256" loJsonSigningAttrs = createobject("CkJsonObject") loJsonSigningAttrs.UpdateInt("contentType",1) loJsonSigningAttrs.UpdateInt("signingTime",1) loJsonSigningAttrs.UpdateInt("messageDigest",1) loJsonSigningAttrs.UpdateInt("signingCertificateV2",1) loCrypt.SigningAttributes = loJsonSigningAttrs.Emit() // By default, all the certs in the chain of authentication are included in the signature. // If desired, we can choose to only include the signing certificate: loCrypt.IncludeCertChain = .F. // Pass a JSON document such as the following. Chilkat will do the ITIDA canonicalization. // (It is the canonicalized JSON that gets signed.) // { // "issuer":{ // "address":{ // "branchID":"0", // "country":"EG", // "regionCity":"Cairo", // "postalCode":"", // "buildingNumber":"0", // "street":"123rd Street", // "governate":"GOVERNATE" // }, // "type":"B", // "id":"209999899", // "name":"Xyz SAE" // }, // "receiver":{ // "address":{ // "country":"EG", // "regionCity":"CAIRO", // "postalCode":"11435", // "buildingNumber":"0", // "street":"Autostrad Road Abc", // "governate":"GOVERNATE" // }, // "type":"B", // "id":"999999999", // "name":"XYZ EGYPT FOR TRADE" // }, // "documentType":"I", // "documentTypeVersion":"1.0", // "dateTimeIssued":"2020-11-15T11:04:53Z", // "taxpayerActivityCode":"1073", // "internalID":"ZZZZ999", // "purchaseOrderReference":"2009199918", // "salesOrderReference":"", // "payment":{ // "bankName":"", // "bankAddress":"", // "bankAccountNo":"", // "bankAccountIBAN":"", // "swiftCode":"", // "terms":"" // }, // "delivery":{ // "approach":"", // "packaging":"", // "dateValidity":"", // "exportPort":"", // "countryOfOrigin":"EG", // "grossWeight":0, // "netWeight":0, // "terms":"" // }, // "invoiceLines":[ // { // "description":"CDM Widget 48GX99X12BA", // "itemType":"GS1", // "itemCode":"7622213335056", // "unitType":"CS", // "quantity":1.00, // "unitValue":{ // "currencySold":"EGP", // "amountEGP":588.67, // "amountSold":0, // "currencyExchangeRate":0 // }, // "salesTotal":588.67, // "total":603.97, // "valueDifference":0, // "totalTaxableFees":0, // "netTotal":529.8, // "itemsDiscount":0, // "discount":{ // "rate":10.00, // "amount":58.87 // }, // "taxableItems":[ // { // "taxType":"T1", // "amount":74.17, // "subType":"No sub", // "rate":14.00 // } // ], // "internalCode":"9099994" // } // ], // "totalSales":588.67, // "totalSalesAmount":588.67, // "totalDiscountAmount":58.87, // "netAmount":529.80, // "taxTotals":[ // { // "taxType":"T1", // "amount":74.17 // } // ], // "extraDiscountAmount":0, // "totalItemsDiscountAmount":0, // "totalAmount":603.97, // } // Build the above JSON.. // Use this online tool to generate code from sample JSON: // Generate Code to Create JSON loJson = createobject("CkJsonObject") loJson.UpdateString("issuer.address.branchID","0") loJson.UpdateString("issuer.address.country","EG") loJson.UpdateString("issuer.address.regionCity","Cairo") loJson.UpdateString("issuer.address.postalCode","") loJson.UpdateString("issuer.address.buildingNumber","0") loJson.UpdateString("issuer.address.street","123rd Street") loJson.UpdateString("issuer.address.governate","GOVERNATE") loJson.UpdateString("issuer.type","B") loJson.UpdateString("issuer.id","209999899") loJson.UpdateString("issuer.name","Xyz SAE") loJson.UpdateString("receiver.address.country","EG") loJson.UpdateString("receiver.address.regionCity","CAIRO") loJson.UpdateString("receiver.address.postalCode","11435") loJson.UpdateString("receiver.address.buildingNumber","0") loJson.UpdateString("receiver.address.street","Autostrad Road Abc") loJson.UpdateString("receiver.address.governate","GOVERNATE") loJson.UpdateString("receiver.type","B") loJson.UpdateString("receiver.id","999999999") loJson.UpdateString("receiver.name","XYZ EGYPT FOR TRADE") loJson.UpdateString("documentType","I") loJson.UpdateString("documentTypeVersion","1.0") loJson.UpdateString("dateTimeIssued","2020-11-15T11:04:53Z") loJson.UpdateString("taxpayerActivityCode","1073") loJson.UpdateString("internalID","ZZZZ999") loJson.UpdateString("purchaseOrderReference","2009199918") loJson.UpdateString("salesOrderReference","") loJson.UpdateString("payment.bankName","") loJson.UpdateString("payment.bankAddress","") loJson.UpdateString("payment.bankAccountNo","") loJson.UpdateString("payment.bankAccountIBAN","") loJson.UpdateString("payment.swiftCode","") loJson.UpdateString("payment.terms","") loJson.UpdateString("delivery.approach","") loJson.UpdateString("delivery.packaging","") loJson.UpdateString("delivery.dateValidity","") loJson.UpdateString("delivery.exportPort","") loJson.UpdateString("delivery.countryOfOrigin","EG") loJson.UpdateInt("delivery.grossWeight",0) loJson.UpdateInt("delivery.netWeight",0) loJson.UpdateString("delivery.terms","") loJson.UpdateString("invoiceLines[0].description","CDM Widget 48GX99X12BA") loJson.UpdateString("invoiceLines[0].itemType","GS1") loJson.UpdateString("invoiceLines[0].itemCode","7622213335056") loJson.UpdateString("invoiceLines[0].unitType","CS") loJson.UpdateNumber("invoiceLines[0].quantity","1.00") loJson.UpdateString("invoiceLines[0].unitValue.currencySold","EGP") loJson.UpdateNumber("invoiceLines[0].unitValue.amountEGP","588.67") loJson.UpdateInt("invoiceLines[0].unitValue.amountSold",0) loJson.UpdateInt("invoiceLines[0].unitValue.currencyExchangeRate",0) loJson.UpdateNumber("invoiceLines[0].salesTotal","588.67") loJson.UpdateNumber("invoiceLines[0].total","603.97") loJson.UpdateInt("invoiceLines[0].valueDifference",0) loJson.UpdateInt("invoiceLines[0].totalTaxableFees",0) loJson.UpdateNumber("invoiceLines[0].netTotal","529.8") loJson.UpdateInt("invoiceLines[0].itemsDiscount",0) loJson.UpdateNumber("invoiceLines[0].discount.rate","10.00") loJson.UpdateNumber("invoiceLines[0].discount.amount","58.87") loJson.UpdateString("invoiceLines[0].taxableItems[0].taxType","T1") loJson.UpdateNumber("invoiceLines[0].taxableItems[0].amount","74.17") loJson.UpdateString("invoiceLines[0].taxableItems[0].subType","No sub") loJson.UpdateNumber("invoiceLines[0].taxableItems[0].rate","14.00") loJson.UpdateString("invoiceLines[0].internalCode","9099994") loJson.UpdateNumber("totalSales","588.67") loJson.UpdateNumber("totalSalesAmount","588.67") loJson.UpdateNumber("totalDiscountAmount","58.87") loJson.UpdateNumber("netAmount","529.80") loJson.UpdateString("taxTotals[0].taxType","T1") loJson.UpdateNumber("taxTotals[0].amount","74.17") loJson.UpdateInt("extraDiscountAmount",0) loJson.UpdateInt("totalItemsDiscountAmount",0) loJson.UpdateNumber("totalAmount","603.97") loJson.EmitCompact = .T. lcJsonToSign = loJson.Emit() // Create the CAdES-BES signature. loCrypt.EncodingMode = "base64" // Make sure we sign the utf-8 byte representation of the JSON string loCrypt.Charset = "utf-8" lcSigBase64 = loCrypt.SignStringENC(lcJsonToSign) if (loCrypt.LastMethodSuccess = .F.) then ? loCrypt.LastErrorText release loGlob release loCrypt release loCert release loCmsOptions release loJsonSigningAttrs release loJson return endif ? "Base64 signature:" ? lcSigBase64 // Insert the base64 signature into the JSON to be sent loJson.UpdateString("signatures[0].signatureType","I") loJson.UpdateString("signatures[0].value",lcSigBase64) // Wrap the JSON in {"documents":[ ... ]} loSbToSend = createobject("CkStringBuilder") loSbToSend.Append('{"documents":[') loSbToSend.Append(loJson.Emit()) loSbToSend.Append("]}") // ------------------------------------------------------------------------ // Get an access token using our client ID and client secret key lcClientId = "abc999ff-1234" lcClientSecretKey = "123fff22-1234-abcd" loHttp = createobject("CkHttp") // Causes the Authorization: Basic header to be added.. loHttp.Login = lcClientId loHttp.Password = lcClientSecretKey loHttp.BasicAuth = .T. loReq = createobject("CkHttpRequest") loReq.HttpVerb = "POST" loReq.Path = "/connect/token" loReq.ContentType = "application/x-www-form-urlencoded" loReq.AddParam("grant_type","client_credentials") loReq.AddHeader("Connection","close") loHttp.Accept = "application/json" loResp = loHttp.PostUrlEncoded("https://id.preprod.eta.gov.eg/connect/token",loReq) if (loHttp.LastMethodSuccess = .F.) then ? loHttp.LastErrorText release loGlob release loCrypt release loCert release loCmsOptions release loJsonSigningAttrs release loJson release loSbToSend release loHttp release loReq return endif loHttp.CloseAllConnections() ? "Response status code: " + str(loResp.StatusCode) ? "Response body:" ? loResp.BodyStr if (loResp.StatusCode <> 200) then ? "Failed." release loResp release loGlob release loCrypt release loCert release loCmsOptions release loJsonSigningAttrs release loJson release loSbToSend release loHttp release loReq return endif loJsonToken = createobject("CkJsonObject") llSuccess = loJsonToken.Load(loResp.BodyStr) lcAccessToken = loJsonToken.StringOf("access_token") ? "access_token = " + lcAccessToken release loResp // ------------------------------------------------------------------------ // Submit the signed JSON to the ETA (Egypt Tax Authority) Portal // No longer sending basic authentication... loHttp.Login = "" loHttp.Password = "" loHttp.BasicAuth = .F. // Setting the AuthToken property causes the "Authorization: Bearer <token>" header to be added to each request. loHttp.AuthToken = lcAccessToken loResp = loHttp.PostJson2("https://api.preprod.invoicing.eta.gov.eg/api/v1/documentsubmissions","application/json; charset=utf-8",loSbToSend.GetAsString()) if (loHttp.LastMethodSuccess = .F.) then ? loHttp.LastErrorText release loGlob release loCrypt release loCert release loCmsOptions release loJsonSigningAttrs release loJson release loSbToSend release loHttp release loReq release loJsonToken return endif ? "Response status code: " + str(loResp.StatusCode) ? "Response body:" ? loResp.BodyStr release loGlob release loCrypt release loCert release loCmsOptions release loJsonSigningAttrs release loJson release loSbToSend release loHttp release loReq release loJsonToken |
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