(Ruby) Extract XML from FatturaPA .p7m

Demonstrates how to verify the signature and extract the XML from a FatturaPA .p7m file.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

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

bd = Chilkat::CkBinData.new()
success = bd.LoadFile("qa_data/p7m/IT01879020517_abc.xml.p7m")
if (success != true)
    print "Failed to load the .p7m file" + "\n";
    exit
end

crypt = Chilkat::CkCrypt2.new()

# Verify and extrct the payload contained within the .p7m.
# In this case, the payload is the FatturaPA XML.
# If successful, the resulting bd will contain only the XML.
bVerified = crypt.OpaqueVerifyBd(bd)
if (bVerified != true)
    print crypt.lastErrorText() + "\n";
    print "Failed to extract and verify." + "\n";
    exit
end

# Save the XML to a file.
bd.WriteFile("qa_output/zIT01879020517_abc.xml")

# Alternatively, load into an XML object and emit.
xml = Chilkat::CkXml.new()
xml.LoadXml(bd.getString("utf-8"))

print xml.getXml() + "\n";