关于gateway:SpringGateway中对SpringActuator路径进行权限验证

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背景

须要对 spingActuator 的监测门路进行拦挡,从而实现弹窗输出登录信息的性能,然而 gateway 提供的 GlobalFilter 拦截器不失效,故钻研了一番

解决形式

应用 WebFilter 进行拦挡,拦截器代码如下:

import org.springframework.core.annotation.Order;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.WebFilter;
import org.springframework.web.server.WebFilterChain;
import reactor.core.publisher.Mono;
import sun.misc.BASE64Decoder;

import java.io.IOException;
import java.util.Objects;

@Order(2)
@Component
public class ActuatorFilter implements WebFilter {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {ServerHttpRequest request = exchange.getRequest();
        ServerHttpResponse response = exchange.getResponse();
        String uriPath = request.getURI().getPath();
        if(uriPath.startsWith("/actuator/")) {String auth = request.getHeaders().getFirst(HttpHeaders.AUTHORIZATION);
            if(Objects.isNull(auth)){System.out.println("校验申请头为空,需进行登录..");
                response.getHeaders().add(HttpHeaders.WWW_AUTHENTICATE,"Basic realm="."");
                response.setStatusCode(HttpStatus.UNAUTHORIZED);
                return response.setComplete();}else {System.out.println("auth:" + auth);
                BASE64Decoder decoder = new BASE64Decoder();
                String[] values = new String[0];
                try {values = new String(decoder.decodeBuffer(auth.split("")[1])).split(":");
                } catch (IOException e) {throw new RuntimeException(e);
                }
                if (values.length == 2) {String username = values[0];
                    String pwd = values[1];
                    System.out.println("username:" + username);
                    System.out.println("pwd:" + pwd);
                    if(Objects.equals("test",username) && Objects.equals("test",pwd)){return chain.filter(exchange);
                    }else {response.getHeaders().add(HttpHeaders.WWW_AUTHENTICATE,"Basic realm="."");
                        response.setStatusCode(HttpStatus.UNAUTHORIZED);
                        return response.setComplete();}
                }
            }
        }
        return chain.filter(exchange);
    }
}

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