Class: Epics::Response

Inherits:
Object
  • Object
show all
Defined in:
lib/epics/response.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(client, xml) ⇒ Response

Returns a new instance of Response.



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# File 'lib/epics/response.rb', line 5

def initialize(client, xml)
  self.doc = Nokogiri::XML.parse(xml)
  self.client = client
end

Instance Attribute Details

#client ⇒ Object

Returns the value of attribute client.



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# File 'lib/epics/response.rb', line 3

def client
  @client
end

#doc ⇒ Object

Returns the value of attribute doc.



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# File 'lib/epics/response.rb', line 2

def doc
  @doc
end

Instance Method Details

#business_code ⇒ Object 



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# File 'lib/epics/response.rb', line 30

def business_code
  doc.xpath("//xmlns:body/xmlns:ReturnCode", xmlns: "urn:org:ebics:H004").text
end

#business_error? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/epics/response.rb', line 26

def business_error?
  !["", "000000"].include?(business_code)
end

#cipher ⇒ Object 



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# File 'lib/epics/response.rb', line 94

def cipher
  cipher = OpenSSL::Cipher.new("aes-128-cbc")

  cipher.decrypt
  cipher.padding = 0
  cipher.key = transaction_key
  cipher
end

#digest_valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/epics/response.rb', line 64

def digest_valid?
  authenticated = doc.xpath("//*[@authenticate='true']").map(&:canonicalize).join
  digest_value = doc.xpath("//ds:DigestValue", ds: "http://www.w3.org/2000/09/xmldsig#").first

  digest = Base64.encode64(digester.digest(authenticated)).strip

  digest == digest_value.content
end

#digester ⇒ Object 



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# File 'lib/epics/response.rb', line 109

def digester
  @digester ||= OpenSSL::Digest::SHA256.new
end

#last_segment? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/epics/response.rb', line 38

def last_segment?
  !!doc.at_xpath("//xmlns:header/xmlns:mutable/*[@lastSegment='true']", xmlns: "urn:org:ebics:H004")
end

#mutable_return_code ⇒ Object 



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# File 'lib/epics/response.rb', line 18

def mutable_return_code
  doc.xpath("//xmlns:header/xmlns:mutable/xmlns:ReturnCode", xmlns: "urn:org:ebics:H004").text
end

#ok? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/epics/response.rb', line 34

def ok?
  !technical_error? & !business_error?
end

#order_data ⇒ Object 



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# File 'lib/epics/response.rb', line 86

def order_data
  order_data_encrypted = Base64.decode64(doc.xpath("//xmlns:OrderData", xmlns: 'urn:org:ebics:H004').first.content)

  data = (cipher.update(order_data_encrypted) + cipher.final)

  Zlib::Inflate.new.inflate(data)
end

#order_id ⇒ Object 



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# File 'lib/epics/response.rb', line 60

def order_id
  doc.xpath("//xmlns:header/xmlns:mutable/xmlns:OrderID", xmlns: "urn:org:ebics:H004").text
end

#public_digest_valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/epics/response.rb', line 80

def public_digest_valid?
  encryption_pub_key_digest = doc.xpath("//xmlns:EncryptionPubKeyDigest", xmlns: 'urn:org:ebics:H004').first

  client.e.public_digest == encryption_pub_key_digest.content
end

#report_text ⇒ Object 



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# File 'lib/epics/response.rb', line 52

def report_text
  doc.xpath("//xmlns:ReportText", xmlns: "urn:org:ebics:H004").first.content
end

#return_code ⇒ Object 



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# File 'lib/epics/response.rb', line 46

def return_code
  doc.xpath("//xmlns:ReturnCode", xmlns: "urn:org:ebics:H004").last.content
rescue NoMethodError
  nil
end

#segmented? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/epics/response.rb', line 42

def segmented?
  !!doc.at_xpath("//xmlns:header/xmlns:mutable/xmlns:SegmentNumber", xmlns: "urn:org:ebics:H004")
end

#signature_valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/epics/response.rb', line 73

def signature_valid?
  signature = doc.xpath("//ds:SignedInfo", ds: "http://www.w3.org/2000/09/xmldsig#").first.canonicalize
  signature_value = doc.xpath("//ds:SignatureValue", ds: "http://www.w3.org/2000/09/xmldsig#").first

  client.bank_x.key.verify(digester, Base64.decode64(signature_value.content), signature)
end

#system_return_code ⇒ Object 



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# File 'lib/epics/response.rb', line 22

def system_return_code
  doc.xpath("//xmlns:SystemReturnCode/xmlns:ReturnCode", xmlns: 'http://www.ebics.org/H000').text
end

#technical_code ⇒ Object 



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# File 'lib/epics/response.rb', line 14

def technical_code
  mutable_return_code.empty? ? system_return_code : mutable_return_code
end

#technical_error? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/epics/response.rb', line 10

def technical_error?
  !["011000", "000000"].include?(technical_code)
end

#transaction_id ⇒ Object 



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# File 'lib/epics/response.rb', line 56

def transaction_id
  doc.xpath("//xmlns:header/xmlns:static/xmlns:TransactionID", xmlns: 'urn:org:ebics:H004').text
end

#transaction_key ⇒ Object 



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# File 'lib/epics/response.rb', line 103

def transaction_key
  transaction_key_encrypted = Base64.decode64(doc.xpath("//xmlns:TransactionKey", xmlns: 'urn:org:ebics:H004').first.content)

  @transaction_key ||= client.e.key.private_decrypt(transaction_key_encrypted)
end