Class: Xmldsig::Signature

Inherits:
Object
  • Object
show all
Defined in:
lib/xmldsig/signature.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(signature) ⇒ Signature

Returns a new instance of Signature.



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# File 'lib/xmldsig/signature.rb', line 5

def initialize(signature)
  @signature = signature
  @errors    = []
end

Instance Attribute Details

#errors ⇒ Object

Returns the value of attribute errors.



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# File 'lib/xmldsig/signature.rb', line 3

def errors
  @errors
end

#signature ⇒ Object

Returns the value of attribute signature.



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# File 'lib/xmldsig/signature.rb', line 3

def signature
  @signature
end

Instance Method Details

#digest_value ⇒ Object 



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# File 'lib/xmldsig/signature.rb', line 10

def digest_value
  Base64.decode64 signed_info.at_xpath("descendant::ds:DigestValue", NAMESPACES).content
end

#document ⇒ Object 



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# File 'lib/xmldsig/signature.rb', line 14

def document
  signature.document
end

#reference_uri ⇒ Object 



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# File 'lib/xmldsig/signature.rb', line 26

def reference_uri
  signature.at_xpath("descendant::ds:Reference", NAMESPACES).get_attribute("URI")
end

#referenced_node ⇒ Object 



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

def referenced_node
  if reference_uri && reference_uri != ""
    document.dup.at_xpath("//*[@ID='#{reference_uri[1..-1]}']")
  else
    document.root
  end
end

#sign(private_key = nil, &block) ⇒ Object 



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# File 'lib/xmldsig/signature.rb', line 30

def sign(private_key = nil, &block)
  self.digest_value    = calculate_digest_value
  self.signature_value = calculate_signature_value(private_key, &block)
end

#signature_value ⇒ Object 



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

def signature_value
  Base64.decode64 signature.at_xpath("descendant::ds:SignatureValue", NAMESPACES).content
end

#signed_info ⇒ Object 



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# File 'lib/xmldsig/signature.rb', line 35

def signed_info
  signature.at_xpath("descendant::ds:SignedInfo", NAMESPACES)
end

#valid?(certificate = nil, &block) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/xmldsig/signature.rb', line 43

def valid?(certificate = nil, &block)
  @errors = []
  validate_digest_value
  validate_signature_value(certificate, &block)
  @errors.empty?
end