Tcl
Tcl
Sign ITIDA JSON and Send to ETA (Egypt Tax Authority) Portal
See more Egypt ITIDA Examples
Demonstrates how to ITIDA canonicalize JSON, create signature, and send to the ETA Portal.Chilkat Tcl Downloads
load ./chilkat.dll
set success 0
# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.
set crypt [new_CkCrypt2]
CkCrypt2_put_VerboseLogging $crypt 1
set cert [new_CkCert]
CkCert_put_VerboseLogging $cert 1
# Set the smart card PIN, which will be needed for signing.
CkCert_put_SmartCardPin $cert "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..
set success [CkCert_LoadFromSmartcard $cert ""]
if {$success == 0} then {
puts [CkCert_lastErrorText $cert]
delete_CkCrypt2 $crypt
delete_CkCert $cert
exit
}
# Tell the crypt class to use this cert.
set success [CkCrypt2_SetSigningCert $crypt $cert]
if {$success == 0} then {
puts [CkCrypt2_lastErrorText $crypt]
delete_CkCrypt2 $crypt
delete_CkCert $cert
exit
}
set cmsOptions [new_CkJsonObject]
# Setting "DigestData" causes OID 1.2.840.113549.1.7.5 (digestData) to be used.
CkJsonObject_UpdateBool $cmsOptions "DigestData" 1
CkJsonObject_UpdateBool $cmsOptions "OmitAlgorithmIdNull" 1
# Indicate that we are passing normal JSON and we want Chilkat do automatically
# do the ITIDA JSON canonicalization:
CkJsonObject_UpdateBool $cmsOptions "CanonicalizeITIDA" 1
CkCrypt2_put_CmsOptions $crypt [CkJsonObject_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.
CkCrypt2_put_CadesEnabled $crypt 1
CkCrypt2_put_HashAlgorithm $crypt "sha256"
set jsonSigningAttrs [new_CkJsonObject]
CkJsonObject_UpdateInt $jsonSigningAttrs "contentType" 1
CkJsonObject_UpdateInt $jsonSigningAttrs "signingTime" 1
CkJsonObject_UpdateInt $jsonSigningAttrs "messageDigest" 1
CkJsonObject_UpdateInt $jsonSigningAttrs "signingCertificateV2" 1
CkCrypt2_put_SigningAttributes $crypt [CkJsonObject_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:
CkCrypt2_put_IncludeCertChain $crypt 0
# 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.
CkCrypt2_put_EncodingMode $crypt "base64"
# Make sure we sign the utf-8 byte representation of the JSON string
CkCrypt2_put_Charset $crypt "utf-8"
set jsonInvoice "{ ... }"
set sigBase64 [CkCrypt2_signStringENC $crypt $jsonInvoice]
if {[CkCrypt2_get_LastMethodSuccess $crypt] == 0} then {
puts [CkCrypt2_lastErrorText $crypt]
delete_CkCrypt2 $crypt
delete_CkCert $cert
delete_CkJsonObject $cmsOptions
delete_CkJsonObject $jsonSigningAttrs
exit
}
puts "Base64 signature:"
puts "$sigBase64"
# Insert the base64 signature into the JSON to be sent
set json [new_CkJsonObject]
CkJsonObject_Load $json $jsonInvoice
CkJsonObject_UpdateString $json "signatures[0].signatureType" "I"
CkJsonObject_UpdateString $json "signatures[0].value" $sigBase64
CkJsonObject_put_EmitCompact $json 1
# Wrap the JSON in {"documents":[ ... ]}
set sbToSend [new_CkStringBuilder]
CkStringBuilder_Append $sbToSend "{\"documents\":["
CkStringBuilder_Append $sbToSend [CkJsonObject_emit $json]
CkStringBuilder_Append $sbToSend "]}"
# ------------------------------------------------------------------------
# Get an access token using our client ID and client secret key
set clientId "abc999ff-1234"
set clientSecretKey "123fff22-1234-abcd"
set http [new_CkHttp]
# Causes the Authorization: Basic header to be added..
CkHttp_put_Login $http $clientId
CkHttp_put_Password $http $clientSecretKey
CkHttp_put_BasicAuth $http 1
set req [new_CkHttpRequest]
CkHttpRequest_put_HttpVerb $req "POST"
CkHttpRequest_put_Path $req "/connect/token"
CkHttpRequest_put_ContentType $req "application/x-www-form-urlencoded"
CkHttpRequest_AddParam $req "grant_type" "client_credentials"
CkHttpRequest_AddHeader $req "Connection" "close"
CkHttp_put_Accept $http "application/json"
set resp [new_CkHttpResponse]
set success [CkHttp_HttpReq $http "https://id.preprod.eta.gov.eg/connect/token" $req $resp]
if {$success == 0} then {
puts [CkHttp_lastErrorText $http]
delete_CkCrypt2 $crypt
delete_CkCert $cert
delete_CkJsonObject $cmsOptions
delete_CkJsonObject $jsonSigningAttrs
delete_CkJsonObject $json
delete_CkStringBuilder $sbToSend
delete_CkHttp $http
delete_CkHttpRequest $req
delete_CkHttpResponse $resp
exit
}
CkHttp_CloseAllConnections $http
puts "Response status code: [CkHttpResponse_get_StatusCode $resp]"
puts "Response body:"
puts [CkHttpResponse_bodyStr $resp]
if {[CkHttpResponse_get_StatusCode $resp] != 200} then {
puts "Failed."
delete_CkCrypt2 $crypt
delete_CkCert $cert
delete_CkJsonObject $cmsOptions
delete_CkJsonObject $jsonSigningAttrs
delete_CkJsonObject $json
delete_CkStringBuilder $sbToSend
delete_CkHttp $http
delete_CkHttpRequest $req
delete_CkHttpResponse $resp
exit
}
set jsonToken [new_CkJsonObject]
set success [CkJsonObject_Load $jsonToken [CkHttpResponse_bodyStr $resp]]
set accessToken [CkJsonObject_stringOf $jsonToken "access_token"]
puts "access_token = $accessToken"
# ------------------------------------------------------------------------
# Submit the signed JSON to the ETA (Egypt Tax Authority) Portal
# No longer sending basic authentication...
CkHttp_put_Login $http ""
CkHttp_put_Password $http ""
CkHttp_put_BasicAuth $http 0
# Setting the AuthToken property causes the "Authorization: Bearer <token>" header to be added to each request.
CkHttp_put_AuthToken $http $accessToken
set url "https://api.preprod.invoicing.eta.gov.eg/api/v1/documentsubmissions"
set jsonStr [CkStringBuilder_getAsString $sbToSend]
set success [CkHttp_HttpStr $http "POST" $url $jsonStr "utf-8" "application/json; charset=utf-8" $resp]
if {$success == 0} then {
puts [CkHttp_lastErrorText $http]
delete_CkCrypt2 $crypt
delete_CkCert $cert
delete_CkJsonObject $cmsOptions
delete_CkJsonObject $jsonSigningAttrs
delete_CkJsonObject $json
delete_CkStringBuilder $sbToSend
delete_CkHttp $http
delete_CkHttpRequest $req
delete_CkHttpResponse $resp
delete_CkJsonObject $jsonToken
exit
}
puts "Response status code: [CkHttpResponse_get_StatusCode $resp]"
puts "Response body:"
puts [CkHttpResponse_bodyStr $resp]
delete_CkCrypt2 $crypt
delete_CkCert $cert
delete_CkJsonObject $cmsOptions
delete_CkJsonObject $jsonSigningAttrs
delete_CkJsonObject $json
delete_CkStringBuilder $sbToSend
delete_CkHttp $http
delete_CkHttpRequest $req
delete_CkHttpResponse $resp
delete_CkJsonObject $jsonToken