spring security CsrfTokenHandshakeInterceptor 源码
spring security CsrfTokenHandshakeInterceptor 代码
文件路径：/messaging/src/main/java/org/springframework/security/messaging/web/socket/server/CsrfTokenHandshakeInterceptor.java
/*
* Copyright 2002-2015 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.messaging.web.socket.server;
import java.util.Map;
import jakarta.servlet.http.HttpServletRequest;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.http.server.ServletServerHttpRequest;
import org.springframework.security.web.csrf.CsrfToken;
import org.springframework.web.socket.WebSocketHandler;
import org.springframework.web.socket.server.HandshakeInterceptor;
/**
* Copies a CsrfToken from the HttpServletRequest's attributes to the WebSocket
* attributes. This is used as the expected CsrfToken when validating connection requests
* to ensure only the same origin connects.
*
* @author Rob Winch
* @since 4.0
*/
public final class CsrfTokenHandshakeInterceptor implements HandshakeInterceptor {
@Override
public boolean beforeHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler,
Map<String, Object> attributes) {
HttpServletRequest httpRequest = ((ServletServerHttpRequest) request).getServletRequest();
CsrfToken token = (CsrfToken) httpRequest.getAttribute(CsrfToken.class.getName());
if (token == null) {
return true;
}
attributes.put(CsrfToken.class.getName(), token);
return true;
}
@Override
public void afterHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler,
Exception exception) {
}
}
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