spring security DefaultCsrfToken 源码
spring security DefaultCsrfToken 代码
文件路径：/web/src/main/java/org/springframework/security/web/server/csrf/DefaultCsrfToken.java
/*
* Copyright 2002-2017 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.server.csrf;
import org.springframework.util.Assert;
/**
* A CSRF token that is used to protect against CSRF attacks.
*
* @author Rob Winch
* @since 5.0
*/
@SuppressWarnings("serial")
public final class DefaultCsrfToken implements CsrfToken {
private final String token;
private final String parameterName;
private final String headerName;
/**
* Creates a new instance
* @param headerName the HTTP header name to use
* @param parameterName the HTTP parameter name to use
* @param token the value of the token (i.e. expected value of the HTTP parameter of
* parametername).
*/
public DefaultCsrfToken(String headerName, String parameterName, String token) {
Assert.hasLength(headerName, "headerName cannot be null or empty");
Assert.hasLength(parameterName, "parameterName cannot be null or empty");
Assert.hasLength(token, "token cannot be null or empty");
this.headerName = headerName;
this.parameterName = parameterName;
this.token = token;
}
@Override
public String getHeaderName() {
return this.headerName;
}
@Override
public String getParameterName() {
return this.parameterName;
}
@Override
public String getToken() {
return this.token;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || !(obj instanceof CsrfToken)) {
return false;
}
CsrfToken other = (CsrfToken) obj;
if (!getToken().equals(other.getToken())) {
return false;
}
if (!getParameterName().equals(other.getParameterName())) {
return false;
}
return getHeaderName().equals(other.getHeaderName());
}
@Override
public int hashCode() {
int result = getToken().hashCode();
result = 31 * result + getParameterName().hashCode();
result = 31 * result + getHeaderName().hashCode();
return result;
}
}
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