src/main/java/org/keycloak/protocol/cas/endpoints/AuthorizationEndpoint.java

@@ -33,7 +33,7 @@

    @GET
    public Response build() {
        MultivaluedMap<String, String> params = uriInfo.getQueryParameters();
        MultivaluedMap<String, String> params = session.getContext().getUri().getQueryParameters();
        String service = params.getFirst(CASLoginProtocol.SERVICE_PARAM);
        boolean renew = params.containsKey(CASLoginProtocol.RENEW_PARAM);
        boolean gateway = params.containsKey(CASLoginProtocol.GATEWAY_PARAM);
@@ -42,12 +42,7 @@
        checkRealm();
        checkClient(service);

        AuthorizationEndpointChecks checks = getOrCreateAuthenticationSession(client, null);
        if (checks.response != null) {
            return checks.response;
        }

        authenticationSession = checks.authSession;
        authenticationSession = createAuthenticationSession(client, null);
        updateAuthenticationSession();

        // So back button doesn't work
@@ -58,30 +53,30 @@
        }

        this.event.event(EventType.LOGIN);
        return handleBrowserAuthenticationRequest(authenticationSession, new CASLoginProtocol(session, realm, uriInfo, headers, event), gateway, false);
        return handleBrowserAuthenticationRequest(authenticationSession, new CASLoginProtocol(session, realm, session.getContext().getUri(), headers, event), gateway, false);
    }

    private void checkClient(String service) {
        if (service == null) {
            event.error(Errors.INVALID_REQUEST);
            throw new ErrorPageException(session, Messages.MISSING_PARAMETER, CASLoginProtocol.SERVICE_PARAM);
            throw new ErrorPageException(session, Response.Status.BAD_REQUEST, Messages.MISSING_PARAMETER, CASLoginProtocol.SERVICE_PARAM);
        }

        client = realm.getClients().stream()
                .filter(c -> CASLoginProtocol.LOGIN_PROTOCOL.equals(c.getProtocol()))
                .filter(c -> RedirectUtils.verifyRedirectUri(uriInfo, service, realm, c) != null)
                .filter(c -> RedirectUtils.verifyRedirectUri(session, service, c) != null)
                .findFirst().orElse(null);
        if (client == null) {
            event.error(Errors.CLIENT_NOT_FOUND);
            throw new ErrorPageException(session, Messages.CLIENT_NOT_FOUND);
            throw new ErrorPageException(session, Response.Status.BAD_REQUEST, Messages.CLIENT_NOT_FOUND);
        }

        if (!client.isEnabled()) {
            event.error(Errors.CLIENT_DISABLED);
            throw new ErrorPageException(session, Messages.CLIENT_DISABLED);
            throw new ErrorPageException(session, Response.Status.BAD_REQUEST, Messages.CLIENT_DISABLED);
        }

        redirectUri = RedirectUtils.verifyRedirectUri(uriInfo, service, realm, client);
        redirectUri = RedirectUtils.verifyRedirectUri(session, service, client);

        event.client(client.getClientId());
        event.detail(Details.REDIRECT_URI, redirectUri);
@@ -93,10 +88,5 @@
        authenticationSession.setProtocol(CASLoginProtocol.LOGIN_PROTOCOL);
        authenticationSession.setRedirectUri(redirectUri);
        authenticationSession.setAction(AuthenticationSessionModel.Action.AUTHENTICATE.name());
    }

    @Override
    protected boolean isNewRequest(AuthenticationSessionModel authSession, ClientModel clientFromRequest, String requestState) {
        return true;
    }
}