Ruby(2.0) & Savon(2) SOAP client - returning nil SOAP operation - ruby-on-rails

Question

I am trying to integrate my rails app with SOAP based web-service.
Being a novice in SOAP, I referred this to get started.
My First step was to create a client using Savon:
client = Savon.client(wsdl: "https://xxxx.xxxx.xxxx/Reg/ABCRegService.svc?wsdl")
Now, when I do client.operations, I get a []
The wsdl looks something like this(I have masked value fields for security)
<wsdl:definitions name="some_name" targetNamespace="some_targetNamespace">
<wsdl:import namespace="some_Namespace1" location="some_nameService.svc?wsdl=wsdl0"/>
<wsdl:types>
<xsd:schema targetNamespace="some_targetNamespaceImports">
<xsd:import schemaLocation="http://example.net/some_name/some_Service.svc?xsd=xsd0" namespace="some_targetNamespace"/>
</xsd:schema>
</wsdl:types>
<wsdl:message name="some_name_RegisterTool_InputMessage">
<wsdl:part name="parameters" element="tns:RegisterTool"/>
</wsdl:message>
<wsdl:message name="some_name_RegisterTool_OutputMessage">
<wsdl:part name="parameters" element="tns:RegisterToolResponse"/>
</wsdl:message>
<wsdl:message name="UnregisterToolRequest">
<wsdl:part name="parameters" element="tns:UnregisterToolRequest"/>
</wsdl:message>
<wsdl:message name="UnregisterToolRequest_Headers">
<wsdl:part name="AuthenticationHeader" element="tns:AuthenticationHeader"/>
</wsdl:message>
<wsdl:message name="UnregistrationResult">
<wsdl:part name="parameters" element="tns:UnregistrationResult"/>
</wsdl:message>
<wsdl:portType msc:usingSession="false" name="some_name">
<wsdl:operation name="RegisterTool">
<wsdl:input wsaw:Action="some_targetNamespacesome_name/RegisterTool" message="tns:some_name_RegisterTool_InputMessage"/>
<wsdl:output wsaw:Action="some_targetNamespacesome_name/RegisterToolResponse" message="tns:some_name_RegisterTool_OutputMessage"/>
</wsdl:operation>
<wsdl:operation name="UnregisterTool">
<wsdl:input wsaw:Action="some_targetNamespacesome_name/UnregisterTool" name="UnregisterToolRequest" message="tns:UnregisterToolRequest"/>
<wsdl:output wsaw:Action="some_targetNamespacesome_name/UnregisterToolResponse" name="UnregistrationResult" message="tns:UnregistrationResult"/>
</wsdl:operation>
</wsdl:portType>
<wsdl:service name="some_name">
<wsdl:port name="WSHttpBinding_some_name" binding="i0:WSHttpBinding_some_name">
<soap12:address location="https://example.net/Dcsome_name/some_nameService.svc"/>
<wsa10:EndpointReference>
<wsa10:Address>https://example.net/Dcsome_name/some_nameService.svc</wsa10:Address>
<Identity>
<Dns>localhost</Dns>
</Identity>
</wsa10:EndpointReference>
</wsdl:port>
</wsdl:service>
I looked into similar questions such as this. When I tried creating client in the suggested manner
client = Savon.client(
endpoint: 'proper_endpoint',
soap_action: "proper_soap_action",
namespace: 'proper_namespace',
convert_request_keys_to: :camelcase,
env_namespace: :soapenv
)
,I got:
:in `method_missing': Unknown global option: :soap_action (Savon::UnknownOptionError).
Any Ideas on how to get through this?
Environment:
OS:Windows 7(Installed rails using RailsInstaller)
Ruby version: 2.0.0
Savon: 2
Rails 4.1.8
Update:
I tried hitting the same WSDL from SOAPUI.
To make it work in SOAPUI,
I had to
set WS-Addressing property to true,
Check the checkbox for Add default wsa:to,
Use <![CDATA[]> to pass identifiers parameters.
Any leads on how to set these things in while creating Savon client?

Answer 1

Your process of retrieving operations of the wsdl is perfectly right. I checked the wsdl in 'Soap UI' & it seems like that the WSDL has some error. And this is why you are not getting any operations as the wsdl is not providing any definition.
Error loading [https://xx.xxxx.xxx/DcRegistration/DCRegistrationService.svc?wsdl=wsdl0]: java.io.IOException: Attempted read from closed stream

Answer 2

The issue was due to incorrect parsing of WSDL. In the wasabi gem, lib/parser.rb on line 136, the current XPATH search is:
wsdl:definitions/wsdl:binding/wsdl:operation', 'wsdl' => WSDL
However, the WSDL I am referring has elements organised differently and I had to tweak the above line to:
'wsdl:definitions/wsdl:portType/wsdl:operation', 'wsdl' => WSDL
Here is a link for the same issue in github: https://github.com/savonrb/savon/issues/702