From e7c4c12a98805b078a328e10b07e5b4720659d1c Mon Sep 17 00:00:00 2001
From: Xavier Johnson <krinkodot22@hotmail.com>
Date: Fri, 18 Dec 2020 22:52:45 -0500
Subject: [PATCH] #76 Set a message for error responses

Without one, clients might treat errors as generic failures instead of
handling them in a manner appropriate for their error code
---
 .../java/io/kamax/mxisd/exception/InvalidParamException.java    | 1 +
 .../java/io/kamax/mxisd/exception/InvalidPepperException.java   | 1 +
 .../io/kamax/mxisd/http/undertow/handler/BasicHttpHandler.java  | 2 +-
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/java/io/kamax/mxisd/exception/InvalidParamException.java b/src/main/java/io/kamax/mxisd/exception/InvalidParamException.java
index 571329f..05fca83 100644
--- a/src/main/java/io/kamax/mxisd/exception/InvalidParamException.java
+++ b/src/main/java/io/kamax/mxisd/exception/InvalidParamException.java
@@ -23,5 +23,6 @@ package io.kamax.mxisd.exception;
 public class InvalidParamException extends RuntimeException {
 
     public InvalidParamException() {
+        super("The chosen hash algorithm is invalid or disallowed");
     }
 }
diff --git a/src/main/java/io/kamax/mxisd/exception/InvalidPepperException.java b/src/main/java/io/kamax/mxisd/exception/InvalidPepperException.java
index 59bc1ff..34078b4 100644
--- a/src/main/java/io/kamax/mxisd/exception/InvalidPepperException.java
+++ b/src/main/java/io/kamax/mxisd/exception/InvalidPepperException.java
@@ -23,5 +23,6 @@ package io.kamax.mxisd.exception;
 public class InvalidPepperException extends RuntimeException {
 
     public InvalidPepperException() {
+        super("The provided pepper is invalid or expired");
     }
 }
diff --git a/src/main/java/io/kamax/mxisd/http/undertow/handler/BasicHttpHandler.java b/src/main/java/io/kamax/mxisd/http/undertow/handler/BasicHttpHandler.java
index 46e6c31..59df3b7 100644
--- a/src/main/java/io/kamax/mxisd/http/undertow/handler/BasicHttpHandler.java
+++ b/src/main/java/io/kamax/mxisd/http/undertow/handler/BasicHttpHandler.java
@@ -189,7 +189,7 @@ public abstract class BasicHttpHandler implements HttpHandler {
     }
 
     protected void respond(HttpServerExchange ex, int status, String errCode, String error) {
-        respond(ex, status, buildErrorBody(ex, errCode, error));
+        respond(ex, status, buildErrorBody(ex, errCode, error != null ? error : "An error has occurred"));
     }
 
     protected void handleException(HttpServerExchange exchange, HttpMatrixException ex) {