software-override 是什么意思
时间: 2023-12-09 12:04:05 浏览: 36
"software-override"是一个软件覆盖(override)的概念,在软件开发中常用于描述通过软件来改变或覆盖某个设定、配置或行为。
具体而言,在某些应用中,硬件设备或系统的行为可能是通过默认的设置或配置来确定的。然而,有时候我们希望通过软件的方式来修改或覆盖这些默认设置,以满足特定的需求或实现特定的功能。
软件覆盖可以通过编写特定的代码或使用特定的软件接口来实现。通过修改相关的参数、配置或控制寄存器等,我们可以在运行时改变设备或系统的行为,从而实现软件覆盖。
在不同的上下文中,"software-override"可能指代不同的具体操作或实现方式。但总体来说,它表示通过软件来改变或覆盖设备或系统的默认设置或行为。
相关问题
Alert output and override input
"Alert output" refers to a warning or notification message that is displayed to the user. This message may inform the user of an error, a successful operation, or any other important information.
"Override input" refers to the ability to change or replace input data that has already been provided. This can be useful in situations where the user has made a mistake or needs to update their input.
In general, alert outputs and input overrides are both important features in software development because they help to improve the usability and functionality of the system. By providing clear and informative alerts, users can better understand how the system is working and be alerted to any potential issues. And by allowing for input overrides, users can correct mistakes or update their data without having to start over from scratch.
以下代码是什么意思/* * sonic-server Sonic Cloud Real Machine Platform. * Copyright (C) 2022 SonicCloudOrg * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published * by the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. */ package org.cloud.sonic.gateway.config; import com.alibaba.fastjson.JSONObject; import org.cloud.sonic.common.http.RespEnum; import org.cloud.sonic.common.http.RespModel; import org.cloud.sonic.common.tools.JWTTokenTool; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import org.springframework.cloud.gateway.filter.GatewayFilterChain; import org.springframework.cloud.gateway.filter.GlobalFilter; import org.springframework.core.Ordered; import org.springframework.core.io.buffer.DataBuffer; import org.springframework.http.server.reactive.ServerHttpResponse; import org.springframework.stereotype.Component; import org.springframework.web.server.ServerWebExchange; import reactor.core.publisher.Mono; import java.nio.charset.StandardCharsets; import java.util.List; @Component public class AuthFilter implements GlobalFilter, Ordered { @Value("${filter.white-list}") private List<String> whiteList; @Autowired private JWTTokenTool jwtTokenTool; @Override public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) { for (String white : whiteList) { if (exchange.getRequest().getURI().getPath().contains(white)) { return chain.filter(exchange); } } String token = exchange.getRequest().getHeaders().getFirst("SonicToken"); ServerHttpResponse response = exchange.getResponse(); response.getHeaders().add("Content-Type", "text/plain;charset=UTF-8"); DataBuffer buffer = sendResp(response); if (token == null) { return response.writeWith(Mono.just(buffer)); } // verify token if (!jwtTokenTool.verify(token)) { return response.writeWith(Mono.just(buffer)); } return chain.filter(exchange); } @Override public int getOrder() { return -100; } private DataBuffer sendResp(ServerHttpResponse response) { JSONObject result = (JSONObject) JSONObject.toJSON(new RespModel(RespEnum.UNAUTHORIZED)); DataBuffer buffer = response.bufferFactory().wrap(result.toJSONString().getBytes(StandardCharsets.UTF_8)); return buffer; } }
这段代码是一个Spring Cloud Gateway中的全局过滤器,用于对请求进行身份认证和授权处理。代码中包含以下主要内容:
1. 声明了一个名为AuthFilter的组件,并实现了GlobalFilter和Ordered接口。
2. 通过@Autowired注解注入了JWTTokenTool类的实例和通过@Value注解注入了白名单列表。
3. 实现了filter方法,该方法会在每个请求到达网关时被调用。
4. 首先,根据白名单列表判断当前请求是否在白名单内,如果是,则直接放行。
5. 如果不在白名单内,则尝试从请求头中获取名为"SonicToken"的token。
6. 创建一个ServerHttpResponse对象用于返回响应,并设置Content-Type为"text/plain;charset=UTF-8"。
7. 如果没有获取到token,则返回未授权的响应。
8. 如果获取到了token,则使用JWTTokenTool类对token进行验证,如果验证失败,则返回未授权的响应。
9. 如果验证通过,则继续执行后续的过滤器链。
10. 实现了getOrder方法,用于指定过滤器的执行顺序,返回-100表示该过滤器具有最高优先级。
11. 实现了sendResp方法,用于构建未授权响应的内容。
总体来说,这段代码实现了对请求进行身份认证和授权的功能,并根据配置的白名单进行特殊处理。如果请求没有经过认证或授权,将返回未授权的响应。