/*
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* Copyright (c) 2018-2028, Chill Zhuang All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* Neither the name of the dreamlu.net developer nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* Author: Chill 庄骞 (smallchill@163.com)
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*/
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package org.springblade.gateway.config;
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import lombok.AllArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springblade.gateway.handler.SwaggerResourceHandler;
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import org.springblade.gateway.handler.SwaggerSecurityHandler;
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import org.springblade.gateway.handler.SwaggerUiHandler;
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import org.springblade.gateway.props.AuthProperties;
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import org.springblade.gateway.props.RouteProperties;
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import org.springframework.boot.context.properties.EnableConfigurationProperties;
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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.MediaType;
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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 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 Chill
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*/
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@Slf4j
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@Configuration
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@AllArgsConstructor
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@EnableConfigurationProperties({RouteProperties.class, AuthProperties.class})
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public class RouterFunctionConfiguration {
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private final SwaggerResourceHandler swaggerResourceHandler;
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private final SwaggerSecurityHandler swaggerSecurityHandler;
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private final SwaggerUiHandler swaggerUiHandler;
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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, Tenant-Id, Blade-Auth, Content-Type, Authorization, credential, X-XSRF-TOKEN, token, username, client";
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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 = "18000L";
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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-Allow-Origin", ALLOWED_ORIGIN);
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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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headers.add("Access-Control-Allow-Credentials", "true");
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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 RouterFunction routerFunction() {
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return RouterFunctions.route(RequestPredicates.GET("/swagger-resources")
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.and(RequestPredicates.accept(MediaType.ALL)), swaggerResourceHandler)
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.andRoute(RequestPredicates.GET("/swagger-resources/configuration/ui")
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.and(RequestPredicates.accept(MediaType.ALL)), swaggerUiHandler)
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.andRoute(RequestPredicates.GET("/swagger-resources/configuration/security")
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.and(RequestPredicates.accept(MediaType.ALL)), swaggerSecurityHandler);
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}
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}
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