src/main/java/org/keycloak/protocol/cas/CASLoginProtocol.java

@@ -12,6 +12,7 @@
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;

@@ -111,11 +112,16 @@

    @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)
@@ -123,7 +129,8 @@
            sendSingleLogoutRequest(logoutUrl, serviceTicket);
        }
        ClientModel client = clientSession.getClient();
        new ResourceAdminManager(session).logoutClientSession(uriInfo.getRequestUri(), realm, client, clientSession);
        new ResourceAdminManager(session).logoutClientSession(realm, client, clientSession);
        return Response.ok().build();
    }

    private void sendSingleLogoutRequest(String logoutUrl, String serviceTicket) {