package com.ruoyi.gateway.config;
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import org.springframework.beans.factory.annotation.Autowired;
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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.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.reactive.function.server.RequestPredicates;
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import org.springframework.web.reactive.function.server.RouterFunction;
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import org.springframework.web.reactive.function.server.RouterFunctions;
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import com.ruoyi.common.core.utils.StringUtils;
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import com.ruoyi.gateway.handler.ValidateCodeHandler;
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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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* 路由配置信息
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*
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* @author ruoyi
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*/
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@Configuration
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public class RouterFunctionConfiguration {
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/**
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* 这里为支持的请求头，如果有自定义的header字段请自己添加
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*/
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private static final String ALLOWED_HEADERS = "X-Requested-With, Content-Type, Authorization, credential, X-XSRF-TOKEN, token, username, client, request-origin, sign, nonce_str, timestamp, X-Login-Session";
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private static final String ALLOWED_METHODS = "GET,POST,PUT,DELETE,OPTIONS,HEAD";
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private static final String ALLOWED_ORIGIN = "*";
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private static final String ALLOWED_EXPOSE = "*";
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private static final String MAX_AGE = "18000";
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@Autowired
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private ValidateCodeHandler validateCodeHandler;
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@SuppressWarnings("rawtypes")
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@Bean
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public RouterFunction routerFunction() {
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return RouterFunctions.route(
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RequestPredicates.GET("/code"),
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validateCodeHandler);
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}
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/**
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* 跨域配置
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*/
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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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ServerHttpResponse response = ctx.getResponse();
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HttpHeaders headers = response.getHeaders();
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headers.add("Access-Control-Allow-Headers", ALLOWED_HEADERS);
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headers.add("Access-Control-Allow-Methods", ALLOWED_METHODS);
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headers.add("Access-Control-Expose-Headers", ALLOWED_EXPOSE);
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headers.add("Access-Control-Max-Age", MAX_AGE);
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String origin = request.getHeaders().getOrigin();
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if (StringUtils.isNotBlank(origin)) {
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// 反射请求来源，支持携带凭据（Allow-Origin 为 * 时浏览器会拒绝 Allow-Credentials）
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headers.add("Access-Control-Allow-Origin", origin);
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headers.add("Vary", "Origin");
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headers.add("Access-Control-Allow-Credentials", "true");
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}
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else {
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headers.add("Access-Control-Allow-Origin", ALLOWED_ORIGIN);
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}
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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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}
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