spring security PermissionsPolicyServerHttpHeadersWriter 源码
spring security PermissionsPolicyServerHttpHeadersWriter 代码
文件路径：/web/src/main/java/org/springframework/security/web/server/header/PermissionsPolicyServerHttpHeadersWriter.java
/*
* Copyright 2002-2020 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.header;
import reactor.core.publisher.Mono;
import org.springframework.security.web.server.header.StaticServerHttpHeadersWriter.Builder;
import org.springframework.util.Assert;
import org.springframework.web.server.ServerWebExchange;
/**
* Writes the {@code Permissions-Policy} response header with configured policy
* directives.
*
* @author Christophe Gilles
* @since 5.5
*/
public final class PermissionsPolicyServerHttpHeadersWriter implements ServerHttpHeadersWriter {
public static final String PERMISSIONS_POLICY = "Permissions-Policy";
private ServerHttpHeadersWriter delegate;
@Override
public Mono<Void> writeHttpHeaders(ServerWebExchange exchange) {
return (this.delegate != null) ? this.delegate.writeHttpHeaders(exchange) : Mono.empty();
}
private static ServerHttpHeadersWriter createDelegate(String policyDirectives) {
Builder builder = StaticServerHttpHeadersWriter.builder();
builder.header(PERMISSIONS_POLICY, policyDirectives);
return builder.build();
}
/**
* Set the policy to be used in the response header.
* @param policy the policy
* @throws IllegalArgumentException if policy is {@code null}
*/
public void setPolicy(String policy) {
Assert.notNull(policy, "policy must not be null");
this.delegate = createDelegate(policy);
}
}
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