Class: FE::Signer

Inherits:
Object
  • Object
show all
Defined in:
lib/facturacr/signer/signer.rb

Constant Summary collapse

C14N =

“www.w3.org/2001/10/xml-exc-c14n#”

"http://www.w3.org/TR/2001/REC-xml-c14n-20010315"
DSIG = 
"http://www.w3.org/2000/09/xmldsig#"
NOKOGIRI_OPTIONS = 
Nokogiri::XML::ParseOptions::STRICT | Nokogiri::XML::ParseOptions::NONET | Nokogiri::XML::ParseOptions::NOENT
RSA_SHA1 = 
"http://www.w3.org/2000/09/xmldsig#rsa-sha1"
RSA_SHA256 = 
"http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"
RSA_SHA384 = 
"http://www.w3.org/2001/04/xmldsig-more#rsa-sha384"
RSA_SHA512 = 
"http://www.w3.org/2001/04/xmldsig-more#rsa-sha512"
SHA1 = 
"http://www.w3.org/2000/09/xmldsig#sha1"
SHA256 = 
"http://www.w3.org/2001/04/xmlenc#sha256"
SHA384 = 
"http://www.w3.org/2001/04/xmldsig-more#sha384"
SHA512 = 
"http://www.w3.org/2001/04/xmlenc#sha512"
ENVELOPED_SIG = 
"http://www.w3.org/2000/09/xmldsig#enveloped-signature"
INC_PREFIX_LIST = 
"#default samlp saml ds xs xsi md"
NAMESPACES = 
"#default ds xs xsi xades xsd"
XADES = 
"http://uri.etsi.org/01903/v1.3.2#"
XADES141 = 
"http://uri.etsi.org/01903/v1.4.1#"
SIGNATURE_POLICY = 
"https://tribunet.hacienda.go.cr/docs/esquemas/2016/v4/Resolucion%20Comprobantes%20Electronicos%20%20DGT-R-48-2016.pdf"

Instance Method Summary collapse

Constructor Details

#initialize(key_path, key_password, input_xml, output_path = nil) ⇒ Signer

Returns a new instance of Signer.



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# File 'lib/facturacr/signer/signer.rb', line 29

def initialize(key_path, key_password,input_xml, output_path=nil)
  @doc = REXML::Document.new(File.read(input_xml))
  @doc.context[:attribute_quote] = :quote
  @doc << REXML::XMLDecl.new(REXML::XMLDecl::DEFAULT_VERSION,REXML::XMLDecl::DEFAULT_ENCODING, REXML::XMLDecl::DEFAULT_STANDALONE)
  @p12 = OpenSSL::PKCS12.new(File.read("tmp/pruebas.p12"),"8753")
  @x509 = @p12.certificate
  @output_path = output_path
end

Instance Method Details

#sign ⇒ Object 



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# File 'lib/facturacr/signer/signer.rb', line 38

def sign
  #Build parts for Digest Calculation
  key_info = build_key_info_element
  signed_properties = build_signed_properties_element
  signed_info_element = build_signed_info_element(key_info,signed_properties)
  # Compute Signature
  signed_info_canon = canonicalize_document(signed_info_element)
  signature_value = compute_signature(@p12.key,algorithm(RSA_SHA256).new,signed_info_canon)
  
  # delete parts namespaces
  delete_namespaces(signed_info_element)
  delete_namespaces(key_info)
  delete_namespaces(signed_properties)
  
  # Created Signature element and add parts
  signature_element = REXML::Element.new("ds:Signature").add_namespace('ds', DSIG)
  signature_element.add_attribute("Id","xmldsig-#{uuid}")
  
  signature_element.add_element(signed_info_element)
  signature_element.add_element("ds:SignatureValue","Id"=>"xmldsig-#{uuid}-sigvalue").text = signature_value
  signature_element.add_element(key_info)
  
  object = signature_element.add_element("ds:Object")
  qualifying_properties = object.add_element("xades:QualifyingProperties", {"Target"=>"#xmldsig-#{uuid}"})
  qualifying_properties.add_namespace("xades", XADES)
  qualifying_properties.add_namespace("xades141", XADES141)
  
  qualifying_properties.add_element(signed_properties)
  
  @doc.root.add_element(signature_element)
  
  File.open(@output_path,"w"){|f| f.write(@doc.to_s)} if @output_path
  
  @doc
end