node.js 邮箱验证服务器搭建

安装node.js
搭建环境
邮箱验证服务器实现

安装node.js

搭建环境

创建文件夹
1. 进入cmd界面
创建node.js初始项目
bash 复制代码
```
npm init
```

安装所需依赖库

bash 复制代码

# 安装grpc-js包
npm install @grpc/grpc-js
# 接着安装proto-loader用来动态解析proto文件
npm install @grpc/proto-loader
# 安装email处理的库
npm install nodemailer
npm install uuid

邮箱验证服务器实现

创建proto文件

内容如下：

bash 复制代码

syntax = "proto3";
package message;
service VerifyService {
  rpc GetVerifyCode (GetVerifyReq) returns (GetVerifyRsp) {}
}
message GetVerifyReq {
  string email = 1;
}
message GetVerifyRsp {
  int32 error = 1;
  string email = 2;
  string code = 3;
}

创建proto.js

bash 复制代码

const path = require('path')
const grpc = require('@grpc/grpc-js')
const protoLoader = require('@grpc/proto-loader')
const PROTO_PATH = path.join(__dirname, 'message.proto')
const packageDefinition = protoLoader.loadSync(PROTO_PATH, { keepCase: true, longs: String, enums: String, defaults: true, oneofs: true })
const protoDescriptor = grpc.loadPackageDefinition(packageDefinition)
const message_proto = protoDescriptor.message
module.exports = message_proto

邮箱设置smtp服务（网易邮箱为例）

需记住授权密码：MU46MS2XiUgw4ytS

创建config.json文件读取配置

user 邮箱地址，pass授权码

bash 复制代码

{
    "email": {
      "user": "ckun20191013@163.com",
      "pass": "MU46MS2XiUgw4ytS"
    },
    "mysql": {
      "host": "localhost",
      "user": "root",
      "password": "123456",
      "database": "test"

    },
    "redis": {
      "host": "localhost",
      "port": "6379",
      "password": "123456"
    }
}

创建const.js文件定义全局变量和常量

bash 复制代码

let code_prefix = "code_";
const Errors = {
    Success : 0,
    RedisErr : 1,
    Exception : 2,
};
module.exports = {code_prefix,Errors}

创建config.js用来读取配置

bash 复制代码

const fs = require('fs');
let config = JSON.parse(fs.readFileSync('config.json', 'utf8'));
let email_user = config.email.user;
let email_pass = config.email.pass;
let mysql_host = config.mysql.host;
let mysql_port = config.mysql.port;
let redis_host = config.redis.host;
let redis_port = config.redis.port;
let redis_passwd = config.redis.passwd;
let code_prefix = "code_";
module.exports = {email_pass, email_user, mysql_host, mysql_port,redis_host, redis_port, redis_passwd, code_prefix}

创建email.js文件封装发邮件的模块

bash 复制代码

const nodemailer = require('nodemailer');
const config_module = require("./config")
/**
 * 创建发送邮件的代理
 */
let transport = nodemailer.createTransport({
    host: 'smtp.163.com',
    port: 465,
    secure: true,
    auth: {
        user: config_module.email_user, // 发送方邮箱地址
        pass: config_module.email_pass // 邮箱授权码或者密码
    }
});

/**
 * 发送邮件的函数
 * @param {*} mailOptions_ 发送邮件的参数
 * @returns 
 */
function SendMail(mailOptions_){
    return new Promise(function(resolve, reject){
        transport.sendMail(mailOptions_, function(error, info){
            if (error) {
                console.log(error);
                reject(error);
            } else {
                console.log('邮件已成功发送：' + info.response);
                resolve(info.response)
            }
        });
    })
}
module.exports.SendMail = SendMail

创建server.js文件，用来启动grpc server

bash 复制代码

const grpc = require('@grpc/grpc-js')
const message_proto = require('./proto')
const emailModule = require("./email")
const const_module = require("./const")
const { v4: uuidv4 } = require('uuid');


async function GetVerifyCode(call, callback) {
    console.log("email is ", call.request.email)
    try{
        uniqueId = uuidv4();
        console.log("uniqueId is ", uniqueId)
        let text_str =  '您的验证码为'+ uniqueId +'请三分钟内完成注册'
        //发送邮件
        let mailOptions = {
            from: 'ckun20191013@163.com',
            to: call.request.email,
            subject: '验证码',
            text: text_str,
        };
        let send_res = await emailModule.SendMail(mailOptions);
        console.log("send res is ", send_res)
        callback(null, { email:  call.request.email,
            error:const_module.Errors.Success
        }); 
    }catch(error){
        console.log("catch error is ", error)
        callback(null, { email:  call.request.email,
            error:const_module.Errors.Exception
        }); 
    }
}
function main() {
    var server = new grpc.Server()
    server.addService(message_proto.VerifyService.service, { GetVerifyCode: GetVerifyCode })
    server.bindAsync('0.0.0.0:40041', grpc.ServerCredentials.createInsecure(), () => {
        server.start()
        console.log('grpc server started')        
    })
}
main()

更改package.json

bash 复制代码

{
  "name": "verifyserver",
  "version": "1.0.0",
  "main": "server.js",
  "scripts": {
    "server": "node server.js"
  },
  "author": "",
  "license": "ISC",
  "description": "",
  "dependencies": {
    "@grpc/grpc-js": "^1.13.3",
    "@grpc/proto-loader": "^0.7.15",
    "nodemailer": "^7.0.3"
  }
}

cmd 输入 npm run server