Get title and artist of MPGA stream

main.coffee

http = require('http')
execSync = require('child_process').execSync

title = ''

options = {
  host: '', # Host
  path: '/', # Path
  port: 6110, # Port
  method: 'GET',
  headers: {
    'Icy-MetaData': '1'
  }
}

req = http.request options, (res)->
  body = []
  body.totalLength = 0
  packSize = 0
  if res.headers['icy-metaint']?
    packSize = parseInt(res.headers['icy-metaint'], 10)
  else
    console.error 'unable to get headers \'icy-metaint\''
    process.exit 1

  res.on 'data', (chunk)->
    body.push(chunk)
    body.totalLength += chunk.length

    if body.totalLength >= packSize # && body.toString('utf8', packSize, body.length)
      buf = Buffer.concat(body, body.totalLength)
      reg = /StreamTitle=\'([\S\s]+?)\';\0/g
      match = reg.exec(buf.toString())

      if match?
          console.log('Title: ' + match[1])

          newBody = buf[reg.lastIndex..]
          body = [ newBody ]
          body.totalLength = newBody.length
      else
        newBody = buf[16000..]
        body = [ newBody ]
        body.totalLength = newBody.length

  res.on 'end', (res)->

req.on 'error', (e)->
  console.error e.message

req.end()