From a20ec10c84d4380dae08c75fbbf52b691c105f5b Mon Sep 17 00:00:00 2001
From: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
Date: Wed, 19 Apr 2023 08:47:27 +0000
Subject: [PATCH] Update to Keycloak 21.1.0

---
 src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java |   50 +++++++++++++++++++++++++++++++++++++-------------
 1 files changed, 37 insertions(+), 13 deletions(-)

diff --git a/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java b/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
index 4557c7a..0317f0d 100644
--- a/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
+++ b/src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java
@@ -4,6 +4,7 @@
 import org.jboss.logging.Logger;
 import org.keycloak.common.util.KeycloakUriBuilder;
 import org.keycloak.common.util.Time;
+import org.keycloak.events.Details;
 import org.keycloak.events.EventBuilder;
 import org.keycloak.events.EventType;
 import org.keycloak.forms.login.LoginFormsProvider;
@@ -12,6 +13,7 @@
 import org.keycloak.protocol.cas.utils.LogoutHelper;
 import org.keycloak.protocol.oidc.utils.OAuth2Code;
 import org.keycloak.protocol.oidc.utils.OAuth2CodeParser;
+import org.keycloak.services.ErrorPage;
 import org.keycloak.services.managers.ResourceAdminManager;
 import org.keycloak.sessions.AuthenticationSessionModel;
 
@@ -35,6 +37,7 @@
     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";
@@ -95,13 +98,22 @@
         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);
+                null, null, authSession.getRedirectUri(), null, null,
+                userSession.getId());
         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();
 
@@ -111,11 +123,16 @@
 
     @Override
     public Response sendError(AuthenticationSessionModel authSession, Error error) {
-        return Response.serverError().entity(error).build();
+        if (authSession.getClientNotes().containsKey(CASLoginProtocol.GATEWAY_PARAM)) {
+            if (error == Error.PASSIVE_INTERACTION_REQUIRED || error == Error.PASSIVE_LOGIN_REQUIRED) {
+                return Response.status(302).location(URI.create(authSession.getRedirectUri())).build();
+            }
+        }
+        return ErrorPage.error(session, authSession, Response.Status.INTERNAL_SERVER_ERROR, error.name());
     }
 
     @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)
@@ -124,11 +141,12 @@
         }
         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) {
@@ -143,19 +161,25 @@
     }
 
     @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);
-        event.user(userSession.getUser()).session(userSession).success();
+        event.event(EventType.LOGOUT)
+            .user(userSession.getUser())
+            .session(userSession)
+            .detail(Details.USERNAME, userSession.getUser().getUsername());
 
         if (redirectUri != null) {
+            event.detail(Details.REDIRECT_URI, redirectUri);
+            event.success();
             return Response.status(302).location(URI.create(redirectUri)).build();
-        } else {
-            LoginFormsProvider infoPage = session.getProvider(LoginFormsProvider.class).setSuccess("Logout successful");
-            infoPage.setAttribute("skipLink", true);
-            return infoPage.createInfoPage();
         }
+
+        event.success();
+
+        LoginFormsProvider infoPage = session.getProvider(LoginFormsProvider.class).setSuccess("Logout successful");
+        infoPage.setAttribute("skipLink", true);
+        return infoPage.createInfoPage();
     }
 
     @Override

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