From eda11afe10b463af8fc93991f8eb2dd77fbc2c21 Mon Sep 17 00:00:00 2001
From: Jacek Kowalski <Jacek@jacekk.info>
Date: Fri, 24 Nov 2023 11:13:43 +0000
Subject: [PATCH] Integration tests: make curl output verbose

---
 src/main/java/org/keycloak/protocol/cas/utils/ContentTypeHelper.java |   16 +++++++++++-----
 1 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/src/main/java/org/keycloak/protocol/cas/utils/ContentTypeHelper.java b/src/main/java/org/keycloak/protocol/cas/utils/ContentTypeHelper.java
index e842ef0..789c8f9 100644
--- a/src/main/java/org/keycloak/protocol/cas/utils/ContentTypeHelper.java
+++ b/src/main/java/org/keycloak/protocol/cas/utils/ContentTypeHelper.java
@@ -1,9 +1,9 @@
 package org.keycloak.protocol.cas.utils;
 
+import jakarta.ws.rs.BadRequestException;
+import jakarta.ws.rs.core.*;
 import org.jboss.resteasy.spi.HttpRequest;
 import org.keycloak.protocol.cas.CASLoginProtocol;
-
-import javax.ws.rs.core.*;
 
 public class ContentTypeHelper {
     private final HttpRequest request;
@@ -19,9 +19,15 @@
     public MediaType selectResponseType() {
         String format = uriInfo.getQueryParameters().getFirst(CASLoginProtocol.FORMAT_PARAM);
         if (format != null && !format.isEmpty()) {
-            request.getMutableHeaders().add(HttpHeaders.ACCEPT, "application/" + format);
+            //if parameter is set, it overrides all header values (see spec section 2.5.1)
+            request.getMutableHeaders().putSingle(HttpHeaders.ACCEPT, "application/" + format.toLowerCase());
         }
-        Variant variant = restRequest.selectVariant(Variant.mediaTypes(MediaType.APPLICATION_XML_TYPE, MediaType.APPLICATION_JSON_TYPE).build());
-        return variant == null ? MediaType.APPLICATION_XML_TYPE : variant.getMediaType();
+        try {
+            Variant variant = restRequest.selectVariant(Variant.mediaTypes(MediaType.APPLICATION_XML_TYPE, MediaType.APPLICATION_JSON_TYPE).build());
+            return variant == null ? MediaType.APPLICATION_XML_TYPE : variant.getMediaType();
+        } catch (BadRequestException e) {
+            //the default Accept header set by java.net.HttpURLConnection is invalid (cf. RESTEASY-960)
+            return MediaType.APPLICATION_XML_TYPE;
+        }
     }
 }

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