a simple imap connector for fetching...

fetch.js

var tls = require('tls');
var hostname = 'imap.qq.com';
var port = 993;
var option = {
  rejectUnauthorized: false
}

var cleartextStream = tls.connect(port, hostname, option);

var step = 0;
cleartextStream.setEncoding('utf8');
cleartextStream.on('data', function (chunk) {
  console.log(chunk);
  switch (++step) {
  case 1:
    console.log('A1 CAPABILITY');
    cleartextStream.write('A1 CAPABILITY\n', 'binary'); break;
  case 2:
    console.log('A2 LOGIN "[email protected]" "Lyz15285115151"');
    cleartextStream.write('A2 LOGIN "[email protected]" "xxxxxxxxxx"\n', 'binary'); break;
  case 3:
    console.log('A3 CAPABILITY');
    cleartextStream.write('A3 CAPABILITY\n', 'binary'); break;
  case 4:
    console.log('A4 ID ("name" "inbox" "version" "1.0.0" "support-url" "http://yorkiefixer.me")')
    cleartextStream.write('A4 ID ("name" "inbox" "version" "1.0.0" "support-url" "http://yorkiefixer.me")\n', 'binary'); break;
  case 5:
    console.log('A5 SELECT "INBOX"');
    cleartextStream.write('A5 SELECT "INBOX"\n', 'binary'); break;
  case 6:
    console.log('A6 FETCH *:* (UID ENVELOPE)');
    cleartextStream.write('A6 FETCH *:* (UID ENVELOPE)\n', 'binary'); break;
  case 7:
    break;
  }
})

This is simple imap client in pure C: https://gist.github.com/yorkie/7886825