Class: Xmldsign::Signature

Inherits:
XML::Node
  • Object
show all
Defined in:
lib/xmldsign/signature.rb

Constant Summary collapse

XML_C14N_1_0 = 
0
XML_C14N_EXCLUSIVE_1_0 = 
1
XML_C14N_1_1 = 
2

Instance Method Summary collapse

Instance Method Details

#c14n_signed_info ⇒ Object 



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# File 'lib/xmldsign/signature.rb', line 11

def c14n_signed_info
  sign
  doc = LibXML::XML::Document.new
  doc.root = signed_info.copy(true)
  doc.canonicalize mode: XML_C14N_EXCLUSIVE_1_0
end

#calculate_digest ⇒ Object 



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# File 'lib/xmldsign/signature.rb', line 59

def calculate_digest
  digest_method.execute transforms.execute
end

#canonicalization_method ⇒ Object 



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# File 'lib/xmldsign/signature.rb', line 18

def canonicalization_method
  node = find_first('.//ds:CanonicalizationMethod')
  Algorithms.factory node['Algorithm'], node
end

#clear_certificate! ⇒ Object 



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# File 'lib/xmldsign/signature.rb', line 45

def clear_certificate!
  if (node = find_first('.//ds:X509Certificate'))
    node.content = ''
  end
end

#clear_signature_value! ⇒ Object 



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# File 'lib/xmldsign/signature.rb', line 39

def clear_signature_value!
  if (node = find_first('.//ds:SignatureValue'))
    node.content = ''
  end
end

#digest_method ⇒ Object 



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# File 'lib/xmldsign/signature.rb', line 23

def digest_method
  node = find_first('.//ds:DigestMethod')
  Algorithms.factory node['Algorithm'], node
end

#fill_digest! ⇒ Object 



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# File 'lib/xmldsign/signature.rb', line 51

def fill_digest!
  if (node = find_first('.//ds:DigestValue'))
    node.content = calculate_digest
  else
    raise Xmldsign::NodeError, 'node ds:DigestValue is not found in document'
  end
end

#sign ⇒ Object 



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# File 'lib/xmldsign/signature.rb', line 32

def sign
  fill_digest!
  clear_signature_value!
  clear_certificate!
  doc
end

#signed_info ⇒ Object 



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# File 'lib/xmldsign/signature.rb', line 7

def signed_info
  SignedInfo.new find_first('.//ds:SignedInfo')
end

#transforms ⇒ Object 



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# File 'lib/xmldsign/signature.rb', line 28

def transforms
  signed_info.transforms
end