Render error message from the app, instead of mod_epp

README.md

@@ -79,9 +79,10 @@ For development configuration, add:
     EPPEngine On
     EPPCommandRoot          /proxy/command
     EPPSessionRoot          /proxy/session
+    EPPErrorRoot            /proxy/error
+    
     ProxyPass /proxy/ http://localhost:8989/epp/
 
-    EPPErrorRoot            /cgi-bin/epp/error
     EPPAuthURI              implicit
     EPPReturncodeHeader     X-EPP-Returncode
   </VirtualHost>
@@ -115,6 +116,10 @@ Wait for the greeting message on the STD, then send EPP/TCP frame:
 * Run tests: `rake`
 * Run all but EPP tests: `rake test:other`
 
+To see internal errors while testing EPP
+* `unicorn -E test -p 8989`
+* `rake spec:epp`
+
 ---
 
 Configuration on plain TCP EPP is as follows:

app/controllers/concerns/epp/common.rb

@@ -12,8 +12,4 @@ module Epp::Common
   def parsed_frame
     Nokogiri::XML(params[:frame]).remove_namespaces!
   end
-
-  def error
-    render 'error'
-  end
 end

app/controllers/epp/errors_controller.rb

@@ -0,0 +1,7 @@
+class Epp::ErrorsController < ApplicationController
+  include Epp::Common
+
+  def error
+    render '/epp/error'
+  end
+end

app/views/epp/error.xml.builder

@@ -0,0 +1,12 @@
+xml.instruct!
+xml.epp('xmlns' => 'urn:ietf:params:xml:ns:epp-1.0', 'xmlns:xsi' => 'http://www.w3.org/2001/XMLSchema-instance', 'xsi:schemaLocation' => 'urn:ietf:params:xml:ns:epp-1.0 epp-1.0.xsd') do
+  xml.response do
+    xml.result('code' => params[:code]) do
+      xml.msg(params[:msg], 'lang' => 'en')
+    end
+  end
+
+  xml.trID do
+    xml.clTRID params[:clTRID]
+  end
+end

config/routes.rb

@@ -2,6 +2,7 @@ Rails.application.routes.draw do
   namespace(:epp) do
     match 'session/:command', to: 'sessions#proxy', defaults: { format: :xml }, via: [:get, :post]
     match 'command/:command', to: 'commands#proxy', defaults: { format: :xml }, via: [:post, :get]
+    get 'error/:command', to: 'errors#error', defaults: { format: :xml }
   end
 
   # The priority is based upon order of creation: first created -> highest priority.