package cn.huge.gateway.config;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.http.HttpHeaders;
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import org.springframework.http.HttpMethod;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.codec.ServerCodecConfigurer;
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import org.springframework.http.codec.support.DefaultServerCodecConfigurer;
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import org.springframework.http.server.reactive.ServerHttpRequest;
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import org.springframework.http.server.reactive.ServerHttpResponse;
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import org.springframework.web.cors.reactive.CorsUtils;
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import org.springframework.web.server.ServerWebExchange;
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import org.springframework.web.server.WebFilter;
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import org.springframework.web.server.WebFilterChain;
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import reactor.core.publisher.Mono;
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/**
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* @title: 网关cors配置
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* @description: 网关cors配置
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* @company: hugeinfo
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* @author: liyj
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* @time: 2021-11-05 16:51:48
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* @version: 1.0.0
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*/
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@Configuration
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public class CorsConfig {
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private static final String MAX_AGE = "18000L";
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@Bean
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public WebFilter corsFilter() {
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return (ServerWebExchange ctx, WebFilterChain chain) -> {
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ServerHttpRequest request = ctx.getRequest();
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if (CorsUtils.isCorsRequest(request)) {
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HttpHeaders requestHeaders = request.getHeaders();
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ServerHttpResponse response = ctx.getResponse();
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HttpMethod requestMethod = requestHeaders.getAccessControlRequestMethod();
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HttpHeaders headers = response.getHeaders();
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headers.add(HttpHeaders.ACCESS_CONTROL_ALLOW_ORIGIN, requestHeaders.getOrigin());
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headers.addAll(HttpHeaders.ACCESS_CONTROL_ALLOW_HEADERS, requestHeaders
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.getAccessControlRequestHeaders());
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if(requestMethod != null){
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headers.add(HttpHeaders.ACCESS_CONTROL_ALLOW_METHODS, requestMethod.name());
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}
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headers.add(HttpHeaders.ACCESS_CONTROL_ALLOW_CREDENTIALS, "true");
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headers.add(HttpHeaders.ACCESS_CONTROL_EXPOSE_HEADERS, "*");
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headers.add(HttpHeaders.ACCESS_CONTROL_MAX_AGE, MAX_AGE);
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if (request.getMethod() == HttpMethod.OPTIONS) {
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response.setStatusCode(HttpStatus.OK);
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return Mono.empty();
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}
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}
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return chain.filter(ctx);
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};
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}
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@Bean
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public ServerCodecConfigurer serverCodecConfigurer() {
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return new DefaultServerCodecConfigurer();
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}
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}
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/**
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* -------------------_ooOoo_-------------------
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* ------------------o8888888o------------------
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* ------------------88" . "88------------------
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* ------------------(| -_- |)------------------
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* ------------------O\ = /O------------------
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* ---------------____/`---'\____---------------
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* -------------.' \\| |// `.-------------
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* ------------/ \\||| : |||// \------------
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* -----------/ _||||| -:- |||||- \-----------
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* -----------| | \\\ - /// | |-----------
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* -----------| \_| ''\---/'' | |-----------
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* -----------\ .-\__ `-` ___/-. /-----------
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* ---------___`. .' /--.--\ `. . __----------
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* ------."" '< `.___\_<|>_/___.' >'"".-------
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* -----| | : `- \`.;`\ _ /`;.`/ - ` : | |-----
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* -----\ \ `-. \_ __\ /__ _/ .-` / /-----
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* ======`-.____`-.___\_____/___.-`____.-'======
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* -------------------`=---='
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* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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* ---------佛祖保佑---hugeinfo---永无BUG----------
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*/
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