[xrd_ssi] Handle USER_ERROR response in EosCta_Stub

cmdline/EosCtaStub.cpp

@@ -319,6 +319,7 @@ int exceptionThrowingMain(int argc, const char *const *const argv)
                                           break;
       case Response::RSP_ERR_PROTOBUF:    throw XrdSsiPb::PbException(response.message_txt());
       case Response::RSP_ERR_CTA:         throw std::runtime_error(response.message_txt());
+      case Response::RSP_ERR_USER:        throw std::runtime_error(response.message_txt());
       // ... define other response types in the protocol buffer (e.g. user error)
       default:                            throw XrdSsiPb::PbException("Invalid response type.");
    }

xroot_plugins/messages/cta_frontend.proto

@@ -42,8 +42,8 @@ message Response {
     RSP_INVALID                       = 0;      //< Response type was not set
     RSP_SUCCESS                       = 1;      //< Request is valid and was accepted for processing
     RSP_ERR_PROTOBUF                  = 2;      //< Framework error caused by Google Protocol Buffers layer
-    RSP_ERR_USER                      = 3;      //< User request is invalid
-    RSP_ERR_CTA                       = 4;      //< Server error reported by CTA Frontend
+    RSP_ERR_CTA                       = 3;      //< Server error reported by CTA Frontend
+    RSP_ERR_USER                      = 4;      //< User request is invalid
   }
   ResponseType type                   = 1;      //< Encode the type of this response
   string message_txt                  = 2;      //< Optional response message text