Outlook HTML msg format from Javascript

问题

Is there any pure open source solution to parse Outlook msg format directly from Javascript and or NodeJS? I believe there is a need to support Outlook msg format in nodemailer, which at least parses eml correctly. So far I could not find a better approach than relying on the linux command line:

• Use msgconvert linux command to go from msg to eml:

  sudo apt install -y  libemail-outlook-message-perl
  
  cd /tmp
  
  msgconvert test\ with\ html\ content.msg # creates  test\ with\ html\ content.eml
  

• Use https://github.com/nodemailer/mailparser to get the information from the eml, for example:

  git clone https://github.com/nodemailer/mailparser.git
  
  npm install
  
  cd mailparser/examples
  
  node extractInfoFromEml.js /tmp/test\ with\ html\ content.eml
  

• Below is the code for extractInfoFromEml.js (just simple.js but accepting an argument.

  'use strict';
  
  const util = require('util');
  
  const fs = require('fs');
  
  const simpleParser = require('../lib/simple-parser.js');
  
  const args = process.argv.slice(2);
  
  const filePath = args[0];
  
  let input = fs.createReadStream(filePath);
  
  simpleParser(input)
  
      .then(mail => {
  
          console.log(util.inspect(mail, false, 22));
  
      })
  
      .catch(err => {
  
          console.log(err);
  
      });
  

  PS: Apparently nodemailer accepts just bugs, therefore I could not ask for a feature request in github.

来源：https://stackoverflow.com/questions/47125889/outlook-html-msg-format-from-javascript