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(Unicode C) 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.
#include <C_CkGlobalW.h> #include <C_CkCrypt2W.h> #include <C_CkCertW.h> #include <C_CkJsonObjectW.h> #include <C_CkStringBuilderW.h> #include <C_CkHttpW.h> #include <C_CkHttpRequestW.h> #include <C_CkHttpResponseW.h> void ChilkatSample(void) { HCkGlobalW glob; HCkCrypt2W crypt; HCkCertW cert; BOOL success; HCkJsonObjectW cmsOptions; HCkJsonObjectW jsonSigningAttrs; HCkJsonObjectW json; const wchar_t *jsonToSign; const wchar_t *sigBase64; HCkStringBuilderW sbToSend; const wchar_t *clientId; const wchar_t *clientSecretKey; HCkHttpW http; HCkHttpRequestW req; HCkHttpResponseW resp; HCkJsonObjectW jsonToken; const wchar_t *accessToken; // 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. glob = CkGlobalW_Create(); CkGlobalW_putDefaultUtf8(glob,TRUE); crypt = CkCrypt2W_Create(); CkCrypt2W_putVerboseLogging(crypt,TRUE); cert = CkCertW_Create(); CkCertW_putVerboseLogging(cert,TRUE); // Set the smart card PIN, which will be needed for signing. CkCertW_putSmartCardPin(cert,L"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.. success = CkCertW_LoadFromSmartcard(cert,L""); if (success != TRUE) { wprintf(L"%s\n",CkCertW_lastErrorText(cert)); CkGlobalW_Dispose(glob); CkCrypt2W_Dispose(crypt); CkCertW_Dispose(cert); return; } // Tell the crypt class to use this cert. success = CkCrypt2W_SetSigningCert(crypt,cert); if (success != TRUE) { wprintf(L"%s\n",CkCrypt2W_lastErrorText(crypt)); CkGlobalW_Dispose(glob); CkCrypt2W_Dispose(crypt); CkCertW_Dispose(cert); return; } cmsOptions = CkJsonObjectW_Create(); // Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used. CkJsonObjectW_UpdateBool(cmsOptions,L"DigestData",TRUE); CkJsonObjectW_UpdateBool(cmsOptions,L"OmitAlgorithmIdNull",TRUE); // Indicate that we are passing normal JSON and we want Chilkat do automatically // do the ITIDA JSON canonicalization: CkJsonObjectW_UpdateBool(cmsOptions,L"CanonicalizeITIDA",TRUE); CkCrypt2W_putCmsOptions(crypt,CkJsonObjectW_emit(cmsOptions)); // The CadesEnabled property applies to all methods that create CMS/PKCS7 signatures. // To create a CAdES-BES signature, set this property equal to true. CkCrypt2W_putCadesEnabled(crypt,TRUE); CkCrypt2W_putHashAlgorithm(crypt,L"sha256"); jsonSigningAttrs = CkJsonObjectW_Create(); CkJsonObjectW_UpdateInt(jsonSigningAttrs,L"contentType",1); CkJsonObjectW_UpdateInt(jsonSigningAttrs,L"signingTime",1); CkJsonObjectW_UpdateInt(jsonSigningAttrs,L"messageDigest",1); CkJsonObjectW_UpdateInt(jsonSigningAttrs,L"signingCertificateV2",1); CkCrypt2W_putSigningAttributes(crypt,CkJsonObjectW_emit(jsonSigningAttrs)); // 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: CkCrypt2W_putIncludeCertChain(crypt,FALSE); // 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 json = CkJsonObjectW_Create(); CkJsonObjectW_UpdateString(json,L"issuer.address.branchID",L"0"); CkJsonObjectW_UpdateString(json,L"issuer.address.country",L"EG"); CkJsonObjectW_UpdateString(json,L"issuer.address.regionCity",L"Cairo"); CkJsonObjectW_UpdateString(json,L"issuer.address.postalCode",L""); CkJsonObjectW_UpdateString(json,L"issuer.address.buildingNumber",L"0"); CkJsonObjectW_UpdateString(json,L"issuer.address.street",L"123rd Street"); CkJsonObjectW_UpdateString(json,L"issuer.address.governate",L"GOVERNATE"); CkJsonObjectW_UpdateString(json,L"issuer.type",L"B"); CkJsonObjectW_UpdateString(json,L"issuer.id",L"209999899"); CkJsonObjectW_UpdateString(json,L"issuer.name",L"Xyz SAE"); CkJsonObjectW_UpdateString(json,L"receiver.address.country",L"EG"); CkJsonObjectW_UpdateString(json,L"receiver.address.regionCity",L"CAIRO"); CkJsonObjectW_UpdateString(json,L"receiver.address.postalCode",L"11435"); CkJsonObjectW_UpdateString(json,L"receiver.address.buildingNumber",L"0"); CkJsonObjectW_UpdateString(json,L"receiver.address.street",L"Autostrad Road Abc"); CkJsonObjectW_UpdateString(json,L"receiver.address.governate",L"GOVERNATE"); CkJsonObjectW_UpdateString(json,L"receiver.type",L"B"); CkJsonObjectW_UpdateString(json,L"receiver.id",L"999999999"); CkJsonObjectW_UpdateString(json,L"receiver.name",L"XYZ EGYPT FOR TRADE"); CkJsonObjectW_UpdateString(json,L"documentType",L"I"); CkJsonObjectW_UpdateString(json,L"documentTypeVersion",L"1.0"); CkJsonObjectW_UpdateString(json,L"dateTimeIssued",L"2020-11-15T11:04:53Z"); CkJsonObjectW_UpdateString(json,L"taxpayerActivityCode",L"1073"); CkJsonObjectW_UpdateString(json,L"internalID",L"ZZZZ999"); CkJsonObjectW_UpdateString(json,L"purchaseOrderReference",L"2009199918"); CkJsonObjectW_UpdateString(json,L"salesOrderReference",L""); CkJsonObjectW_UpdateString(json,L"payment.bankName",L""); CkJsonObjectW_UpdateString(json,L"payment.bankAddress",L""); CkJsonObjectW_UpdateString(json,L"payment.bankAccountNo",L""); CkJsonObjectW_UpdateString(json,L"payment.bankAccountIBAN",L""); CkJsonObjectW_UpdateString(json,L"payment.swiftCode",L""); CkJsonObjectW_UpdateString(json,L"payment.terms",L""); CkJsonObjectW_UpdateString(json,L"delivery.approach",L""); CkJsonObjectW_UpdateString(json,L"delivery.packaging",L""); CkJsonObjectW_UpdateString(json,L"delivery.dateValidity",L""); CkJsonObjectW_UpdateString(json,L"delivery.exportPort",L""); CkJsonObjectW_UpdateString(json,L"delivery.countryOfOrigin",L"EG"); CkJsonObjectW_UpdateInt(json,L"delivery.grossWeight",0); CkJsonObjectW_UpdateInt(json,L"delivery.netWeight",0); CkJsonObjectW_UpdateString(json,L"delivery.terms",L""); CkJsonObjectW_UpdateString(json,L"invoiceLines[0].description",L"CDM Widget 48GX99X12BA"); CkJsonObjectW_UpdateString(json,L"invoiceLines[0].itemType",L"GS1"); CkJsonObjectW_UpdateString(json,L"invoiceLines[0].itemCode",L"7622213335056"); CkJsonObjectW_UpdateString(json,L"invoiceLines[0].unitType",L"CS"); CkJsonObjectW_UpdateNumber(json,L"invoiceLines[0].quantity",L"1.00"); CkJsonObjectW_UpdateString(json,L"invoiceLines[0].unitValue.currencySold",L"EGP"); CkJsonObjectW_UpdateNumber(json,L"invoiceLines[0].unitValue.amountEGP",L"588.67"); CkJsonObjectW_UpdateInt(json,L"invoiceLines[0].unitValue.amountSold",0); CkJsonObjectW_UpdateInt(json,L"invoiceLines[0].unitValue.currencyExchangeRate",0); CkJsonObjectW_UpdateNumber(json,L"invoiceLines[0].salesTotal",L"588.67"); CkJsonObjectW_UpdateNumber(json,L"invoiceLines[0].total",L"603.97"); CkJsonObjectW_UpdateInt(json,L"invoiceLines[0].valueDifference",0); CkJsonObjectW_UpdateInt(json,L"invoiceLines[0].totalTaxableFees",0); CkJsonObjectW_UpdateNumber(json,L"invoiceLines[0].netTotal",L"529.8"); CkJsonObjectW_UpdateInt(json,L"invoiceLines[0].itemsDiscount",0); CkJsonObjectW_UpdateNumber(json,L"invoiceLines[0].discount.rate",L"10.00"); CkJsonObjectW_UpdateNumber(json,L"invoiceLines[0].discount.amount",L"58.87"); CkJsonObjectW_UpdateString(json,L"invoiceLines[0].taxableItems[0].taxType",L"T1"); CkJsonObjectW_UpdateNumber(json,L"invoiceLines[0].taxableItems[0].amount",L"74.17"); CkJsonObjectW_UpdateString(json,L"invoiceLines[0].taxableItems[0].subType",L"No sub"); CkJsonObjectW_UpdateNumber(json,L"invoiceLines[0].taxableItems[0].rate",L"14.00"); CkJsonObjectW_UpdateString(json,L"invoiceLines[0].internalCode",L"9099994"); CkJsonObjectW_UpdateNumber(json,L"totalSales",L"588.67"); CkJsonObjectW_UpdateNumber(json,L"totalSalesAmount",L"588.67"); CkJsonObjectW_UpdateNumber(json,L"totalDiscountAmount",L"58.87"); CkJsonObjectW_UpdateNumber(json,L"netAmount",L"529.80"); CkJsonObjectW_UpdateString(json,L"taxTotals[0].taxType",L"T1"); CkJsonObjectW_UpdateNumber(json,L"taxTotals[0].amount",L"74.17"); CkJsonObjectW_UpdateInt(json,L"extraDiscountAmount",0); CkJsonObjectW_UpdateInt(json,L"totalItemsDiscountAmount",0); CkJsonObjectW_UpdateNumber(json,L"totalAmount",L"603.97"); CkJsonObjectW_putEmitCompact(json,TRUE); jsonToSign = CkJsonObjectW_emit(json); // Create the CAdES-BES signature. CkCrypt2W_putEncodingMode(crypt,L"base64"); // Make sure we sign the utf-8 byte representation of the JSON string CkCrypt2W_putCharset(crypt,L"utf-8"); sigBase64 = CkCrypt2W_signStringENC(crypt,jsonToSign); if (CkCrypt2W_getLastMethodSuccess(crypt) == FALSE) { wprintf(L"%s\n",CkCrypt2W_lastErrorText(crypt)); CkGlobalW_Dispose(glob); CkCrypt2W_Dispose(crypt); CkCertW_Dispose(cert); CkJsonObjectW_Dispose(cmsOptions); CkJsonObjectW_Dispose(jsonSigningAttrs); CkJsonObjectW_Dispose(json); return; } wprintf(L"Base64 signature:\n"); wprintf(L"%s\n",sigBase64); // Insert the base64 signature into the JSON to be sent CkJsonObjectW_UpdateString(json,L"signatures[0].signatureType",L"I"); CkJsonObjectW_UpdateString(json,L"signatures[0].value",sigBase64); // Wrap the JSON in {"documents":[ ... ]} sbToSend = CkStringBuilderW_Create(); CkStringBuilderW_Append(sbToSend,L"{\"documents\":["); CkStringBuilderW_Append(sbToSend,CkJsonObjectW_emit(json)); CkStringBuilderW_Append(sbToSend,L"]}"); // ------------------------------------------------------------------------ // Get an access token using our client ID and client secret key clientId = L"abc999ff-1234"; clientSecretKey = L"123fff22-1234-abcd"; http = CkHttpW_Create(); // Causes the Authorization: Basic header to be added.. CkHttpW_putLogin(http,clientId); CkHttpW_putPassword(http,clientSecretKey); CkHttpW_putBasicAuth(http,TRUE); req = CkHttpRequestW_Create(); CkHttpRequestW_putHttpVerb(req,L"POST"); CkHttpRequestW_putPath(req,L"/connect/token"); CkHttpRequestW_putContentType(req,L"application/x-www-form-urlencoded"); CkHttpRequestW_AddParam(req,L"grant_type",L"client_credentials"); CkHttpRequestW_AddHeader(req,L"Connection",L"close"); CkHttpW_putAccept(http,L"application/json"); resp = CkHttpW_PostUrlEncoded(http,L"https://id.preprod.eta.gov.eg/connect/token",req); if (CkHttpW_getLastMethodSuccess(http) == FALSE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); CkGlobalW_Dispose(glob); CkCrypt2W_Dispose(crypt); CkCertW_Dispose(cert); CkJsonObjectW_Dispose(cmsOptions); CkJsonObjectW_Dispose(jsonSigningAttrs); CkJsonObjectW_Dispose(json); CkStringBuilderW_Dispose(sbToSend); CkHttpW_Dispose(http); CkHttpRequestW_Dispose(req); return; } CkHttpW_CloseAllConnections(http); wprintf(L"Response status code: %d\n",CkHttpResponseW_getStatusCode(resp)); wprintf(L"Response body:\n"); wprintf(L"%s\n",CkHttpResponseW_bodyStr(resp)); if (CkHttpResponseW_getStatusCode(resp) != 200) { wprintf(L"Failed.\n"); CkHttpResponseW_Dispose(resp); CkGlobalW_Dispose(glob); CkCrypt2W_Dispose(crypt); CkCertW_Dispose(cert); CkJsonObjectW_Dispose(cmsOptions); CkJsonObjectW_Dispose(jsonSigningAttrs); CkJsonObjectW_Dispose(json); CkStringBuilderW_Dispose(sbToSend); CkHttpW_Dispose(http); CkHttpRequestW_Dispose(req); return; } jsonToken = CkJsonObjectW_Create(); success = CkJsonObjectW_Load(jsonToken,CkHttpResponseW_bodyStr(resp)); accessToken = CkJsonObjectW_stringOf(jsonToken,L"access_token"); wprintf(L"access_token = %s\n",accessToken); CkHttpResponseW_Dispose(resp); // ------------------------------------------------------------------------ // Submit the signed JSON to the ETA (Egypt Tax Authority) Portal // No longer sending basic authentication... CkHttpW_putLogin(http,L""); CkHttpW_putPassword(http,L""); CkHttpW_putBasicAuth(http,FALSE); // Setting the AuthToken property causes the "Authorization: Bearer <token>" header to be added to each request. CkHttpW_putAuthToken(http,accessToken); resp = CkHttpW_PostJson2(http,L"https://api.preprod.invoicing.eta.gov.eg/api/v1/documentsubmissions",L"application/json; charset=utf-8",CkStringBuilderW_getAsString(sbToSend)); if (CkHttpW_getLastMethodSuccess(http) == FALSE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); CkGlobalW_Dispose(glob); CkCrypt2W_Dispose(crypt); CkCertW_Dispose(cert); CkJsonObjectW_Dispose(cmsOptions); CkJsonObjectW_Dispose(jsonSigningAttrs); CkJsonObjectW_Dispose(json); CkStringBuilderW_Dispose(sbToSend); CkHttpW_Dispose(http); CkHttpRequestW_Dispose(req); CkJsonObjectW_Dispose(jsonToken); return; } wprintf(L"Response status code: %d\n",CkHttpResponseW_getStatusCode(resp)); wprintf(L"Response body:\n"); wprintf(L"%s\n",CkHttpResponseW_bodyStr(resp)); CkGlobalW_Dispose(glob); CkCrypt2W_Dispose(crypt); CkCertW_Dispose(cert); CkJsonObjectW_Dispose(cmsOptions); CkJsonObjectW_Dispose(jsonSigningAttrs); CkJsonObjectW_Dispose(json); CkStringBuilderW_Dispose(sbToSend); CkHttpW_Dispose(http); CkHttpRequestW_Dispose(req); CkJsonObjectW_Dispose(jsonToken); } |
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