Use the full principal name as omniauth UID

lib/omniauth/strategies/kerberos_spnego.rb

@@ -10,7 +10,7 @@ module OmniAuth
 
       option :name, 'kerberos_spnego'
 
-      uid { username }
+      uid { principal_name }
 
       info do
         { username: username, email: email }

spec/lib/omniauth/strategies/kerberos_spnego_spec.rb

@@ -9,6 +9,11 @@ describe OmniAuth::Strategies::KerberosSpnego do
     allow(subject).to receive(:session).and_return(session)
   end
 
+  it 'uses the principal name as the "uid"' do
+    session[:kerberos_spnego_principal_name] = 'Janedoe@FOOBAR.COM'
+    expect(subject.uid).to eq('Janedoe@FOOBAR.COM')
+  end
+
   it 'extracts the username' do
     session[:kerberos_spnego_principal_name] = 'Janedoe@FOOBAR.COM'
     expect(subject.username).to eq('Janedoe')