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, id_attr = nil) ⇒ Signature

Returns a new instance of Signature.



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

def initialize(signature, id_attr = nil)
  @signature = signature
  @id_attr = id_attr
end

Instance Attribute Details

#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

#errors ⇒ Object 



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# File 'lib/xmldsig/signature.rb', line 16

def errors
  references.flat_map(&:errors) + @errors
end

#references ⇒ Object 



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

def references
  @references ||= signature.xpath("descendant::ds:Reference", NAMESPACES).map do |node|
    Reference.new(node, @id_attr)
  end
end

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



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# File 'lib/xmldsig/signature.rb', line 20

def sign(private_key = nil, &block)
  references.each { |reference| reference.sign }
  self.signature_value = calculate_signature_value(private_key, &block)
end

#signature_value ⇒ Object 



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# File 'lib/xmldsig/signature.rb', line 29

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

#signed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/xmldsig/signature.rb', line 42

def signed?
  !unsigned?
end

#signed_info ⇒ Object 



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# File 'lib/xmldsig/signature.rb', line 25

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

#unsigned? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/xmldsig/signature.rb', line 46

def unsigned?
  self.signature_value.to_s.empty?
end

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

Returns:

  • (Boolean) 


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# File 'lib/xmldsig/signature.rb', line 33

def valid?(certificate = nil, &block)
  @errors = []
  references.each { |r| r.errors = [] }
  validate_schema
  validate_digest_values
  validate_signature_value(certificate, &block)
  errors.empty?
end