(Tcl) Compress EBICS SignaturePubKeyOrderData XML

This example provides a note about how to compress the SignaturePubKeyOrderData XML for EBICS.

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load ./chilkat.dll

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# We have this XML to be compressed and then encoded in Base64.

# <?xml version="1.0" encoding="UTF-8"?>
# <SignaturePubKeyOrderData xmlns="http://www.ebics.org/S001" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ebics.org/S001 http://www.ebics.org/S001/ebics_signature.xsd">
# <SignaturePubKeyInfo>
# <ds:X509Data>
# <ds:X509IssuerSerial>
# <ds:X509IssuerName>ABCDEF eID User</ds:X509IssuerName>
# <ds:X509SerialNumber>153594950300874710199347185895388116050</ds:X509SerialNumber>
# </ds:X509IssuerSerial>
# <ds:X509Certificate>MIIJTzCC...xzKyukE=</ds:X509Certificate>
# </ds:X509Data>
# <PubKeyValue>
# <ds:RSAKeyValue><ds:Modulus>zedQEG0gNItQRG17p7CwiSv/N9YUBOzswEnfNSiNirQgb0bfWWAvCXOg7057WTCBMxOe7AHE7rLTTQFRHY2AEqSV1fj8iL7i186XnGQOFjsdVP3LBLV319HhoUIugaZOC5AbnDouq2Femr53NDK4fqYVI6skrvNo9LO4+8IBRNtR8lQudG+ABHCqIkrNjai1pXrjfEhvyAhz0URhqP00i3AUGD3BasM28uFhcNztqSfO/jp5xQOTAjSr2gCgwg9hJV5mVnOazwAEbWmKkW+NZGICrSdoyrJ+UKjbbhL6VI1woe2YufCYqYF0ec8bXdE9KlhHj+XjeaME3k/uBq22Kw==</ds:Modulus><ds:Exponent>AQAB</ds:Exponent></ds:RSAKeyValue>
# <TimeStamp>2015-03-06T18:42:24.376+01:00</TimeStamp>
# </PubKeyValue>
# <SignatureVersion>A005</SignatureVersion>
# </SignaturePubKeyInfo>
# <PartnerID>XKB99999</PartnerID>
# <UserID>XKB99999</UserID>
# </SignaturePubKeyOrderData>  

set fac [new_CkFileAccess]

set strXml [CkFileAccess_readEntireTextFile $fac "qa_data/ebics/SignaturePubKeyOrderData.xml" "utf-8"]
# Assuming the above statement succeeded...

set compress [new_CkCompression]

# EBICS wants the deflate algorithm with the zlib header...
CkCompression_put_Algorithm $compress "zlib"
CkCompression_put_EncodingMode $compress "base64"

set b64CompressedStr [CkCompression_compressStringENC $compress $strXml]

puts "$b64CompressedStr"

delete_CkFileAccess $fac
delete_CkCompression $compress