From 81877a6524d8721ec30debb771e050886c37c861 Mon Sep 17 00:00:00 2001
From: Jacek Kowalski <Jacek@jacekk.info>
Date: Fri, 24 Nov 2023 12:17:22 +0000
Subject: [PATCH] ContextTypeHelper: do account for the "Accept" header (per CAS specs)

---
 src/main/java/org/keycloak/protocol/cas/endpoints/LogoutEndpoint.java |   21 ++++++++++++---------
 1 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/src/main/java/org/keycloak/protocol/cas/endpoints/LogoutEndpoint.java b/src/main/java/org/keycloak/protocol/cas/endpoints/LogoutEndpoint.java
index ac7d74c..bd3a48a 100644
--- a/src/main/java/org/keycloak/protocol/cas/endpoints/LogoutEndpoint.java
+++ b/src/main/java/org/keycloak/protocol/cas/endpoints/LogoutEndpoint.java
@@ -1,13 +1,14 @@
 package org.keycloak.protocol.cas.endpoints;
 
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.Context;
+import jakarta.ws.rs.core.HttpHeaders;
+import jakarta.ws.rs.core.Response;
 import org.jboss.logging.Logger;
 import org.jboss.resteasy.annotations.cache.NoCache;
 import org.jboss.resteasy.spi.HttpRequest;
 import org.keycloak.common.ClientConnection;
-import org.keycloak.events.Details;
-import org.keycloak.events.Errors;
-import org.keycloak.events.EventBuilder;
-import org.keycloak.events.EventType;
 import org.keycloak.models.ClientModel;
 import org.keycloak.models.KeycloakSession;
 import org.keycloak.models.RealmModel;
@@ -18,11 +19,7 @@
 import org.keycloak.services.managers.AuthenticationManager;
 import org.keycloak.services.messages.Messages;
 
-import javax.ws.rs.GET;
-import javax.ws.rs.QueryParam;
-import javax.ws.rs.core.Context;
-import javax.ws.rs.core.HttpHeaders;
-import javax.ws.rs.core.Response;
+import java.net.URI;
 
 public class LogoutEndpoint {
     private static final Logger logger = Logger.getLogger(LogoutEndpoint.class);
@@ -66,6 +63,12 @@
             logger.debug("finishing CAS browser logout");
             return response;
         }
+
+        if (redirectUri != null) {
+            logger.debugv("no active session, redirecting to {0}", redirectUri);
+            return Response.status(302).location(URI.create(redirectUri)).build();
+        }
+
         return ErrorPage.error(session, null, Response.Status.BAD_REQUEST, Messages.FAILED_LOGOUT);
     }
 

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