spring security AbstractCsrfTag 源码
spring security AbstractCsrfTag 代码
文件路径：/taglibs/src/main/java/org/springframework/security/taglibs/csrf/AbstractCsrfTag.java
/*
* Copyright 2002-2014 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.taglibs.csrf;
import java.io.IOException;
import jakarta.servlet.jsp.JspException;
import jakarta.servlet.jsp.tagext.TagSupport;
import org.springframework.security.web.csrf.CsrfToken;
/**
* An abstract tag for handling CSRF operations.
*
* @author Nick Williams
* @since 3.2.2
*/
abstract class AbstractCsrfTag extends TagSupport {
@Override
public int doEndTag() throws JspException {
CsrfToken token = (CsrfToken) this.pageContext.getRequest().getAttribute(CsrfToken.class.getName());
if (token != null) {
try {
this.pageContext.getOut().write(this.handleToken(token));
}
catch (IOException ex) {
throw new JspException(ex);
}
}
return EVAL_PAGE;
}
protected abstract String handleToken(CsrfToken token);
}
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