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(PHP Extension) Sign ITIDA JSON and Send to ETA (Egypt Tax Authority) PortalSee more Egypt ITIDA ExamplesDemonstrates how to ITIDA canonicalize JSON, create signature, and send to the ETA Portal.
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. $crypt = new CkCrypt2(); $crypt->put_VerboseLogging(true); $cert = new CkCert(); $cert->put_VerboseLogging(true); // Set the smart card PIN, which will be needed for signing. $cert->put_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.. $success = $cert->LoadFromSmartcard(''); if ($success != true) { print $cert->lastErrorText() . "\n"; exit; } // Tell the crypt class to use this cert. $success = $crypt->SetSigningCert($cert); if ($success != true) { print $crypt->lastErrorText() . "\n"; exit; } $cmsOptions = new CkJsonObject(); // Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used. $cmsOptions->UpdateBool('DigestData',true); $cmsOptions->UpdateBool('OmitAlgorithmIdNull',true); // Indicate that we are passing normal JSON and we want Chilkat do automatically // do the ITIDA JSON canonicalization: $cmsOptions->UpdateBool('CanonicalizeITIDA',true); $crypt->put_CmsOptions($cmsOptions->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. $crypt->put_CadesEnabled(true); $crypt->put_HashAlgorithm('sha256'); $jsonSigningAttrs = new CkJsonObject(); $jsonSigningAttrs->UpdateInt('contentType',1); $jsonSigningAttrs->UpdateInt('signingTime',1); $jsonSigningAttrs->UpdateInt('messageDigest',1); $jsonSigningAttrs->UpdateInt('signingCertificateV2',1); $crypt->put_SigningAttributes($jsonSigningAttrs->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: $crypt->put_IncludeCertChain(false); // Pass a JSON document such as the following. Chilkat will do the ITIDA canonicalization. // (It is the canonicalized JSON that gets signed.) // Note: The JSON should NOT begin with "{ "documents" : [ ..." // { // "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, // } // Create the CAdES-BES signature. $crypt->put_EncodingMode('base64'); // Make sure we sign the utf-8 byte representation of the JSON string $crypt->put_Charset('utf-8'); $jsonInvoice = '{ ... }'; $sigBase64 = $crypt->signStringENC($jsonInvoice); if ($crypt->get_LastMethodSuccess() == false) { print $crypt->lastErrorText() . "\n"; exit; } print 'Base64 signature:' . "\n"; print $sigBase64 . "\n"; // Insert the base64 signature into the JSON to be sent $json = new CkJsonObject(); $json->Load($jsonInvoice); $json->UpdateString('signatures[0].signatureType','I'); $json->UpdateString('signatures[0].value',$sigBase64); $json->put_EmitCompact(true); // Wrap the JSON in {"documents":[ ... ]} $sbToSend = new CkStringBuilder(); $sbToSend->Append('{\'documents\':['); $sbToSend->Append($json->emit()); $sbToSend->Append(']}'); // ------------------------------------------------------------------------ // Get an access token using our client ID and client secret key $clientId = 'abc999ff-1234'; $clientSecretKey = '123fff22-1234-abcd'; $http = new CkHttp(); // Causes the Authorization: Basic header to be added.. $http->put_Login($clientId); $http->put_Password($clientSecretKey); $http->put_BasicAuth(true); $req = new CkHttpRequest(); $req->put_HttpVerb('POST'); $req->put_Path('/connect/token'); $req->put_ContentType('application/x-www-form-urlencoded'); $req->AddParam('grant_type','client_credentials'); $req->AddHeader('Connection','close'); $http->put_Accept('application/json'); // resp is a CkHttpResponse $resp = $http->PostUrlEncoded('https://id.preprod.eta.gov.eg/connect/token',$req); if ($http->get_LastMethodSuccess() == false) { print $http->lastErrorText() . "\n"; exit; } $http->CloseAllConnections(); print 'Response status code: ' . $resp->get_StatusCode() . "\n"; print 'Response body:' . "\n"; print $resp->bodyStr() . "\n"; if ($resp->get_StatusCode() != 200) { print 'Failed.' . "\n"; exit; } $jsonToken = new CkJsonObject(); $success = $jsonToken->Load($resp->bodyStr()); $accessToken = $jsonToken->stringOf('access_token'); print 'access_token = ' . $accessToken . "\n"; // ------------------------------------------------------------------------ // Submit the signed JSON to the ETA (Egypt Tax Authority) Portal // No longer sending basic authentication... $http->put_Login(''); $http->put_Password(''); $http->put_BasicAuth(false); // Setting the AuthToken property causes the "Authorization: Bearer <token>" header to be added to each request. $http->put_AuthToken($accessToken); // resp is a CkHttpResponse $resp = $http->PostJson2('https://api.preprod.invoicing.eta.gov.eg/api/v1/documentsubmissions','application/json; charset=utf-8',$sbToSend->getAsString()); if ($http->get_LastMethodSuccess() == false) { print $http->lastErrorText() . "\n"; exit; } print 'Response status code: ' . $resp->get_StatusCode() . "\n"; print 'Response body:' . "\n"; print $resp->bodyStr() . "\n"; ?> |
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