node.js 邮箱验证服务器搭建

安装node.js

网址：https://nodejs.org/en 直接安装

搭建环境

1. 创建文件夹
   
   2. 进入cmd界面
   

2. 创建node.js初始项目

   npm init
   

   

3. 安装所需依赖库

   # 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

1. 创建proto文件
   
   内容如下：

   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;
   }
   

2. 创建proto.js

   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
   

3. 邮箱设置smtp服务 （网易邮箱为例）
   
   需记住授权密码：MU46MS2XiUgw4ytS

   

4. 创建config.json文件读取配置
   user 邮箱地址，pass授权码

   {
       "email": {
         "user": "ckun20191013@163.com",
         "pass": "MU46MS2XiUgw4ytS"
       },
       "mysql": {
         "host": "localhost",
         "user": "root",
         "password": "123456",
         "database": "test"
   
       },
       "redis": {
         "host": "localhost",
         "port": "6379",
         "password": "123456"
       }
   }
   

5. 创建const.js文件定义全局变量和常量

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

6. 创建config.js用来读取配置

   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}
   

7. 创建email.js文件封装发邮件的模块

   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
   

8. 创建server.js文件，用来启动grpc server

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()

10. 更改package.json

    {
      "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"
      }
    }
    

11. cmd 输入 npm run server