Add HEV EBICS Order type support

Author: jplot

lib/epics.rb

@@ -56,6 +56,7 @@
 require "epics/xct"
 require "epics/hia"
 require "epics/ini"
+require "epics/hev"
 require "epics/signer"
 require "epics/client"
 

lib/epics/client.rb

@@ -107,6 +107,13 @@ def INI
     post(url, Epics::INI.new(self).to_xml).body.ok?
   end
 
+  def HEV
+    res = post(url, Epics::HEV.new(self).to_xml).body
+    res.doc.xpath("//xmlns:VersionNumber", xmlns: 'http://www.ebics.org/H000').each_with_object({}) do |node, versions|
+      versions[node['ProtocolVersion']] = node.content
+    end
+  end
+
   def HPB
     Nokogiri::XML(download(Epics::HPB)).xpath("//xmlns:PubKeyValue", xmlns: "urn:org:ebics:H004").each do |node|
       type = node.parent.last_element_child.content

lib/epics/hev.rb

@@ -0,0 +1,19 @@
+class Epics::HEV < Epics::GenericRequest
+  def root
+    "ebicsHEVRequest"
+  end
+
+  def body
+    Nokogiri::XML::Builder.new do |xml|
+      xml.HostID host_id
+    end.doc.root
+  end
+
+  def to_xml
+    Nokogiri::XML::Builder.new do |xml|
+      xml.send(root, 'xmlns:xsi' => 'http://www.w3.org/2001/XMLSchema-instance', 'xsi:schemaLocation' => 'http://www.ebics.org/H000 http://www.ebics.org/H000/ebics_hev.xsd', 'xmlns' => 'http://www.ebics.org/H000') {
+        xml.parent.add_child(body)
+      }
+    end.to_xml(save_with: Nokogiri::XML::Node::SaveOptions::AS_XML, encoding: 'utf-8')
+  end
+end

lib/epics/response.rb

@@ -12,9 +12,17 @@ def technical_error?
   end
 
   def technical_code
+    mutable_return_code.empty? ? system_return_code : mutable_return_code
+  end
+
+  def mutable_return_code
     doc.xpath("//xmlns:header/xmlns:mutable/xmlns:ReturnCode", xmlns: "urn:org:ebics:H004").text
   end
 
+  def system_return_code
+    doc.xpath("//xmlns:SystemReturnCode/xmlns:ReturnCode", xmlns: 'http://www.ebics.org/H000').text
+  end
+
   def business_error?
     !["", "000000"].include?(business_code)
   end

lib/epics/signer.rb

@@ -17,7 +17,7 @@ def digest!
   end
 
   def sign!
-    signature_value_node = doc.xpath("//ds:SignatureValue").first
+    signature_value_node = doc.xpath("//ds:SignatureValue", ds: "http://www.w3.org/2000/09/xmldsig#").first
 
     if signature_node
       signature_value_node.content = Base64.encode64(client.x.key.sign(digester, signature_node.canonicalize)).gsub(/\n/,'')
@@ -27,11 +27,11 @@ def sign!
   end
 
   def digest_node
-    @d ||= doc.xpath("//ds:DigestValue").first
+    @d ||= doc.xpath("//ds:DigestValue", ds: "http://www.w3.org/2000/09/xmldsig#").first
   end
 
   def signature_node
-    @s ||= doc.xpath("//ds:SignedInfo").first
+    @s ||= doc.xpath("//ds:SignedInfo", ds: "http://www.w3.org/2000/09/xmldsig#").first
   end
 
   def digester

spec/orders/hev_spec.rb

@@ -0,0 +1,14 @@
+RSpec.describe Epics::HEV do
+
+  let(:client) { Epics::Client.new( File.open(File.join( File.dirname(__FILE__), '..', 'fixtures', 'SIZBN001.key')), 'secret' , 'https://194.180.18.30/ebicsweb/ebicsweb', 'SIZBN001', 'EBIX', 'EBICS') }
+
+  let(:xsd) { Nokogiri::XML::Schema(File.open( File.join( File.dirname(__FILE__), '..', 'xsd', 'ebics_hev.xsd') )) }
+  let(:validator) { xsd.valid?(Nokogiri::XML(subject.to_xml)) }
+
+  subject { described_class.new(client) }
+
+  describe '#to_xml' do
+    specify { expect(validator).to be_truthy }
+  end
+
+end