org.springframework.security.web.csrf.RepositoryDeferredCsrfToken Maven / Gradle / Ivy
/*
* Copyright 2002-2022 the original author or authors.
*
* 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
*
* https://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.springframework.security.web.csrf;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
/**
* @author Rob Winch
* @author Steve Riesenberg
* @since 5.8
*/
final class RepositoryDeferredCsrfToken implements DeferredCsrfToken {
private final CsrfTokenRepository csrfTokenRepository;
private final HttpServletRequest request;
private final HttpServletResponse response;
private CsrfToken csrfToken;
private boolean missingToken;
RepositoryDeferredCsrfToken(CsrfTokenRepository csrfTokenRepository, HttpServletRequest request,
HttpServletResponse response) {
this.csrfTokenRepository = csrfTokenRepository;
this.request = request;
this.response = response;
}
@Override
public CsrfToken get() {
init();
return this.csrfToken;
}
@Override
public boolean isGenerated() {
init();
return this.missingToken;
}
private void init() {
if (this.csrfToken != null) {
return;
}
this.csrfToken = this.csrfTokenRepository.loadToken(this.request);
this.missingToken = (this.csrfToken == null);
if (this.missingToken) {
this.csrfToken = this.csrfTokenRepository.generateToken(this.request);
this.csrfTokenRepository.saveToken(this.csrfToken, this.request, this.response);
}
}
}