spring security XFrameOptionsServerHttpHeadersWriter 源码

spring security XFrameOptionsServerHttpHeadersWriter 代码

文件路径：/web/src/main/java/org/springframework/security/web/server/header/XFrameOptionsServerHttpHeadersWriter.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.header;

import reactor.core.publisher.Mono;

import org.springframework.security.web.server.header.StaticServerHttpHeadersWriter.Builder;
import org.springframework.web.server.ServerWebExchange;

/**
 * {@code ServerHttpHeadersWriter} implementation for the X-Frame-Options headers.
 *
 * @author Rob Winch
 * @since 5.0
 */
public class XFrameOptionsServerHttpHeadersWriter implements ServerHttpHeadersWriter {

	public static final String X_FRAME_OPTIONS = "X-Frame-Options";

	private ServerHttpHeadersWriter delegate = createDelegate(Mode.DENY);

	@Override
	public Mono<Void> writeHttpHeaders(ServerWebExchange exchange) {
		return this.delegate.writeHttpHeaders(exchange);
	}

	/**
	 * Sets the X-Frame-Options mode. There is no support for ALLOW-FROM because not
	 * <a href=
	 * "https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Frame-Options">all
	 * browsers support it</a>. Consider using X-Frame-Options with
	 * Content-Security-Policy <a href=
	 * "https://w3c.github.io/webappsec/specs/content-security-policy/#directive-frame-ancestors">frame-ancestors</a>.
	 * @param mode
	 */
	public void setMode(Mode mode) {
		this.delegate = createDelegate(mode);
	}

	/**
	 * The X-Frame-Options values. There is no support for ALLOW-FROM because not <a href=
	 * "https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Frame-Options">all
	 * browsers support it</a>. Consider using X-Frame-Options with
	 * Content-Security-Policy <a href=
	 * "https://w3c.github.io/webappsec/specs/content-security-policy/#directive-frame-ancestors">frame-ancestors</a>.
	 *
	 * @author Rob Winch
	 * @since 5.0
	 */
	public enum Mode {

		/**
		 * A browser receiving content with this header field MUST NOT display this
		 * content in any frame.
		 */
		DENY,

		/**
		 * A browser receiving content with this header field MUST NOT display this
		 * content in any frame from a page of different origin than the content itself.
		 *
		 * If a browser or plugin cannot reliably determine whether or not the origin of
		 * the content and the frame are the same, this MUST be treated as "DENY".
		 */
		SAMEORIGIN

	}

	private static ServerHttpHeadersWriter createDelegate(Mode mode) {
		Builder builder = StaticServerHttpHeadersWriter.builder();
		builder.header(X_FRAME_OPTIONS, mode.name());
		return builder.build();

	}

}

相关信息

spring security 源码目录

相关文章

spring security CacheControlServerHttpHeadersWriter 源码

spring security ClearSiteDataServerHttpHeadersWriter 源码

spring security CompositeServerHttpHeadersWriter 源码

spring security ContentSecurityPolicyServerHttpHeadersWriter 源码

spring security ContentTypeOptionsServerHttpHeadersWriter 源码

spring security CrossOriginEmbedderPolicyServerHttpHeadersWriter 源码

spring security CrossOriginOpenerPolicyServerHttpHeadersWriter 源码

spring security CrossOriginResourcePolicyServerHttpHeadersWriter 源码

spring security FeaturePolicyServerHttpHeadersWriter 源码

spring security HttpHeaderWriterWebFilter 源码