node.js 基于 STMP 协议和 EWS 协议发送邮件

/**
 * 使用 Nodemailer 发送 STMP 邮件
 * @param {Object} opts 邮件发送配置
 * @param {Object} smtpCfg smtp 服务器配置
 */
async function sendMail(opts, smtpCfg) {
 const resultInfo = { code: 0, msg: '', result: null };
 if (!smtpCfg) {
 resultInfo.msg = '未配置邮件发送信息';
 resultInfo.code = - 1009;
 return resultInfo;
 }

 // 创建一个邮件对象
 const mailOpts = Object.assign(
 {
 // 发件人
 from: `Notify <${smtpCfg.auth.user}>`,
 // 主题
 subject: 'Notify',
 // text: opts.content,
 // html: opts.content,
 // 附件内容
 // /*attachments: [{
 // filename: 'data1.json',
 // path: path.resolve(__dirname, 'data1.json')
 // }, {
 // filename: 'pic01.jpg',
 // path: path.resolve(__dirname, 'pic01.jpg')
 // }, {
 // filename: 'test.txt',
 // path: path.resolve(__dirname, 'test.txt')
 // }],*/
 },
 opts
 );

 if (!mailOpts.to) mailOpts.to = [];
 if (!Array.isArray(mailOpts.to)) mailOpts.to = String(mailOpts.to).split(',');
 mailOpts.to = mailOpts.to.map(m => String(m).trim()).filter(m => m.includes('@'));

 if (!mailOpts.to.length) {
 resultInfo.msg = '未配置邮件接收者';
 resultInfo.code = - 1010;
 return resultInfo;
 }

 const mailToList = mailOpts.to;
 const transporter = nodemailer.createTransport(smtpCfg);

 // to 列表分开发送
 for (const to of mailToList) {
 mailOpts.to = to.trim();
 try {
 const info = await transporter.sendMail(mailOpts);
 console.log('mail sent to:', mailOpts.to, ' response:', info.response);
 resultInfo.msg = info.response;
 } catch (error) {
 console.log(error);
 resultInfo.code = -1001;
 resultInfo.msg = error;
 }
 }

 return resultInfo;
}

const opts = {
 subject: 'subject for test',
 /** HTML 格式邮件正文内容 */
 html: `email content for test: <a href="https://lzw.me" rel="external nofollow" rel="external nofollow" >https://lzw.me</a>`,
 /** TEXT 文本格式邮件正文内容 */
 text: '',
 to: 'xxx@lzw.me',
 // 附件列表
 // attachments: [],
};
const smtpConfig = {
 host: 'smtp.qq.com', //QQ: smtp.qq.com; 网易: smtp.163.com
 port: 465, //端口号。QQ邮箱 465，网易邮箱 25
 secure: true,
 auth: {
 user: 'xxx@qq.com', //邮箱账号
 pass: '', //邮箱的授权码
 },
};
sendMail(opts, smtpConfig).then(result => console.log(result));

import EWS from 'node-ews';

export interface IEwsSendOptions {
 auth: {
 user: string;
 pass"htmlcode">

sendMailByNodeEws({
 auth: {
 user: 'abc@xxx.com',
 pass: '123456',
 /** 密码加密后的秘钥(NTLMAuth.nt_password)。为字符串时，应为 hex 编码结果 */
 nt_password: '',
 /** 密码加密后的秘钥(NTLMAuth.lm_password)。为字符串时，应为 hex 编码结果 */
 lm_password: '',
 },
 /** Exchange 地址 */
 host: 'https://ews.xxx.com',
 /** 邮件主题 */
 subject: 'subject for test',
 /** HTML 格式邮件正文内容 */
 html: `email content for test: <a href="https://lzw.me" rel="external nofollow" rel="external nofollow" >https://lzw.me</a>`,
 /** TEXT 文本格式邮件正文内容(优先级低于 html 参数) */
 text: '',
 to: 'xxx@lzw.me',
})



2.1.2 基于 NTLMAuth 的认证配置方式


直接配置 pass 密码可能会导致明文密码泄露，我们可以将 pass 字段留空，配置 nt_password 和 lm_password 字段，使用 NTLMAuth 认证模式。此二字段基于 pass 明文生成，其 nodejs 生成方式可借助 httpntlm 模块完成，具体参考如下：


import { ntlm as NTLMAuth } from 'httpntlm';

/** 将输入的邮箱账号密码转换为 NTLMAuth 秘钥(hex)格式并输出 */
const getHashedPwd = () => {
 const passwordPlainText = process.argv.slice(2)[0];

 if (!passwordPlainText) {
 console.log('USEAGE: \n\tnode get-hashed-pwd.js [password]');
 return;
 }

 const nt_password = NTLMAuth.create_NT_hashed_password(passwordPlainText.trim());
 const lm_password = NTLMAuth.create_LM_hashed_password(passwordPlainText.trim());

 // console.log('\n password:', passwordPlainText);
 console.log(` nt_password:`, nt_password.toString('hex'));
 console.log(` lm_password:`, lm_password.toString('hex'));

 return {
 nt_password,
 lm_password,
 };
};

getHashedPwd();



2.2 使用 ews-javascript-api 发送 MS Exchange 邮件


基于 ews-javascript-api 发送邮件的方式，在其官方 wiki 有相关示例，但本人在测试过程中未能成功，具体为无法取得服务器认证，也未能查证具体原因，故以下代码仅作参考：


/**
 * 使用 `ews-javascript-api` 发送(MS Exchange)邮件
 */
export async function sendMailByEwsJApi(options: IEwsSendOptions) {
 const resultInfo = { code: 0, msg: '', result: null };

 if (!options) {
 resultInfo.code = -1001;
 resultInfo.msg = 'Options can not be null';
 } else if (!options.auth) {
 resultInfo.code = -1002;
 resultInfo.msg = 'Options.auth{user,pass} can not be null';
 } else if (!options.auth.user || (!options.auth.pass && !options.auth.lm_password)) {
 resultInfo.code = -1003;
 resultInfo.msg = 'Options.auth.user or Options.auth.password can not be null';
 }

 const ews = require('ews-javascript-api');
 const exch = new ews.ExchangeService(ews.ExchangeVersion.Exchange2010);
 exch.Credentials = new ews.WebCredentials(options.auth.user, options.auth.pass);
 exch.Url = new ews.Uri(options.host);
 ews.EwsLogging.DebugLogEnabled = true; // false to turnoff debugging.

 const msgattach = new ews.EmailMessage(exch);
 msgattach.Subject = options.subject;
 msgattach.Body = new ews.MessageBody(ews.BodyType.HTML, escape(options.html || options.text));
 if (!Array.isArray(options.to)) options.to = [options.to];
 options.to.forEach(to => msgattach.ToRecipients.Add(to));
 // msgattach.Importance = ews.Importance.High;

 // 发送附件
 // msgattach.Attachments.AddFileAttachment('filename to attach.txt', 'c29tZSB0ZXh0');

 try {
 const result = await msgattach.SendAndSaveCopy(); // .Send();
 console.log('DONE!', result);
 resultInfo.result = result;
 } catch (err) {
 console.log('ERROR:', err);
 resultInfo.code = 1001;
 resultInfo.msg = err;
 }
 return resultInfo;
}



3 扩展参考


nodemailer.com/about/

github.com/CumberlandG…

github.com/gautamsi/ew…

github.com/lzwme/node-…
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