From 0dd6a08579adb4f5a92fc6bc338935a348528e6f Mon Sep 17 00:00:00 2001
From: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
Date: Tue, 21 Feb 2023 08:47:25 +0000
Subject: [PATCH] Update to Keycloak 20.0.5

---
 src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java |   20 +++++++++++++++-----
 1 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java b/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
index 53f0a32..d8b7a86 100644
--- a/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
+++ b/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
@@ -36,6 +36,7 @@
     public static final String FORMAT_PARAM = "format";
 
     public static final String TICKET_RESPONSE_PARAM = "ticket";
+    public static final String SAMLART_RESPONSE_PARAM = "SAMLart";
 
     public static final String SERVICE_TICKET_PREFIX = "ST-";
     public static final String SESSION_SERVICE_TICKET = "service_ticket";
@@ -96,13 +97,21 @@
         String service = authSession.getRedirectUri();
         //TODO validate service
 
-        OAuth2Code codeData = new OAuth2Code(UUID.randomUUID(),
+        OAuth2Code codeData = new OAuth2Code(UUID.randomUUID().toString(),
                 Time.currentTime() + userSession.getRealm().getAccessCodeLifespan(),
                 null, null, authSession.getRedirectUri(), null, null);
         String code = OAuth2CodeParser.persistCode(session, clientSession, codeData);
 
         KeycloakUriBuilder uriBuilder = KeycloakUriBuilder.fromUri(service);
-        uriBuilder.queryParam(TICKET_RESPONSE_PARAM, SERVICE_TICKET_PREFIX + code);
+
+        String loginTicket = SERVICE_TICKET_PREFIX + code;
+
+        if (authSession.getClientNotes().containsKey(CASLoginProtocol.TARGET_PARAM)) {
+            // This was a SAML 1.1 auth request so return the ticket ID as "SAMLart" instead of "ticket"
+            uriBuilder.queryParam(SAMLART_RESPONSE_PARAM, loginTicket);
+        } else {
+            uriBuilder.queryParam(TICKET_RESPONSE_PARAM, loginTicket);
+        }
 
         URI redirectUri = uriBuilder.build();
 
@@ -121,7 +130,7 @@
     }
 
     @Override
-    public void backchannelLogout(UserSessionModel userSession, AuthenticatedClientSessionModel clientSession) {
+    public Response backchannelLogout(UserSessionModel userSession, AuthenticatedClientSessionModel clientSession) {
         String logoutUrl = clientSession.getRedirectUri();
         String serviceTicket = clientSession.getNote(CASLoginProtocol.SESSION_SERVICE_TICKET);
         //check if session is fully authenticated (i.e. serviceValidate has been called)
@@ -130,11 +139,12 @@
         }
         ClientModel client = clientSession.getClient();
         new ResourceAdminManager(session).logoutClientSession(realm, client, clientSession);
+        return Response.ok().build();
     }
 
     private void sendSingleLogoutRequest(String logoutUrl, String serviceTicket) {
-        HttpEntity requestEntity = LogoutHelper.buildSingleLogoutRequest(serviceTicket);
         try {
+            HttpEntity requestEntity = LogoutHelper.buildSingleLogoutRequest(serviceTicket);
             LogoutHelper.postWithRedirect(session, logoutUrl, requestEntity);
             logger.debug("Sent CAS single logout for service " + logoutUrl);
         } catch (IOException e) {
@@ -149,7 +159,7 @@
     }
 
     @Override
-    public Response finishLogout(UserSessionModel userSession) {
+    public Response finishBrowserLogout(UserSessionModel userSession, AuthenticationSessionModel logoutSession) {
         String redirectUri = userSession.getNote(CASLoginProtocol.LOGOUT_REDIRECT_URI);
 
         event.event(EventType.LOGOUT);

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