/*
  Copyright 2012 - 2015 pac4j organization
   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at
       http://www.apache.org/licenses/LICENSE-2.0
   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
 */
package org.pac4j.core.authorization.authorizer.csrf;

import org.pac4j.core.authorization.Authorizer;
import org.pac4j.core.context.Cookie;
import org.pac4j.core.context.Pac4jConstants;
import org.pac4j.core.context.WebContext;
import org.pac4j.core.profile.UserProfile;

/**
 * Authorizer which creates a new CSRF token and adds it as a request attribute and as a cookie (AngularJS).
 *
 * @author Jerome Leleu
 * @since 1.8.1
 */
public class CsrfTokenGeneratorAuthorizer implements Authorizer<UserProfile> {

    private final CsrfTokenGenerator csrfTokenGenerator;

    public CsrfTokenGeneratorAuthorizer(final CsrfTokenGenerator csrfTokenGenerator) {
        this.csrfTokenGenerator = csrfTokenGenerator;
    }

    @Override
    public boolean isAuthorized(final WebContext context, final UserProfile profile) {
        final String token = csrfTokenGenerator.get(context);
        context.setRequestAttribute(Pac4jConstants.CSRF_TOKEN, token);
        final Cookie cookie = new Cookie(Pac4jConstants.CSRF_TOKEN, token);
        cookie.setDomain(context.getServerName());
        context.addResponseCookie(cookie);
        return true;
    }
}

@@ -863,16 +863,57 @@
 Profile;
+%0Aimport org.pac4j.core.util.CommonHelper;
 %0A%0A/**%0A *
@@ -1449,24 +1449,102 @@
  profile) %7B%0A
+        CommonHelper.assertNotNull(%22csrfTokenGenerator%22, csrfTokenGenerator);%0A
         fina

check the csrfTokenGenerator