From b1c0c9d40edcf1877698afb865f46c7f498ce7d7 Mon Sep 17 00:00:00 2001
From: Jacek Kowalski <Jacek@jacekk.info>
Date: Thu, 27 Apr 2023 20:49:29 +0000
Subject: [PATCH] GitHub Actions: limit permissions of GITHUB_TOKEN

---
 src/main/java/org/keycloak/protocol/cas/endpoints/LogoutEndpoint.java |   23 +++++++++++++++++------
 1 files changed, 17 insertions(+), 6 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 ce2ac6b..bf65e22 100644
--- a/src/main/java/org/keycloak/protocol/cas/endpoints/LogoutEndpoint.java
+++ b/src/main/java/org/keycloak/protocol/cas/endpoints/LogoutEndpoint.java
@@ -4,7 +4,10 @@
 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;
@@ -20,6 +23,7 @@
 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);
@@ -37,13 +41,11 @@
     private HttpHeaders headers;
 
     private RealmModel realm;
-    private EventBuilder event;
     private ClientModel client;
     private String redirectUri;
 
-    public LogoutEndpoint(RealmModel realm, EventBuilder event) {
+    public LogoutEndpoint(RealmModel realm) {
         this.realm = realm;
-        this.event = event;
     }
 
     @GET
@@ -55,13 +57,22 @@
         if (authResult != null) {
             UserSessionModel userSession = authResult.getSession();
             userSession.setNote(AuthenticationManager.KEYCLOAK_LOGOUT_PROTOCOL, CASLoginProtocol.LOGIN_PROTOCOL);
-            if (redirectUri != null) userSession.setNote(CASLoginProtocol.LOGOUT_REDIRECT_URI, redirectUri);
+
+            if (redirectUri != null) {
+                userSession.setNote(CASLoginProtocol.LOGOUT_REDIRECT_URI, redirectUri);
+            }
 
             logger.debug("Initiating CAS browser logout");
-            Response response =  AuthenticationManager.browserLogout(session, realm, authResult.getSession(), session.getContext().getUri(), clientConnection, headers, null);
+            Response response =  AuthenticationManager.browserLogout(session, realm, authResult.getSession(), session.getContext().getUri(), clientConnection, headers);
             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);
     }
 
@@ -70,7 +81,7 @@
             return;
         }
 
-        client = realm.getClients().stream()
+        client = realm.getClientsStream()
                 .filter(c -> CASLoginProtocol.LOGIN_PROTOCOL.equals(c.getProtocol()))
                 .filter(c -> RedirectUtils.verifyRedirectUri(session, service, c) != null)
                 .findFirst().orElse(null);

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