fake plug.dj ban image generator

server.js

var Canvas = require('canvas')
var http = require('http')

var PORT = 8088

// stolen from http://www.html5canvastutorials.com/tutorials/html5-canvas-wrap-text-tutorial/
function wrapText(context, text, x, y, maxWidth, lineHeight) {
  var words = text.split(' ')
  var line = ''
  var wrapped = false

  for(var i = 0; i < words.length; i++) {
    var testLine = line + words[i] + ' '
    var metrics = context.measureText(testLine)
    var testWidth = metrics.width
    if (testWidth > maxWidth && i > 0) {
      context.fillText(line, x, y)
      line = words[i] + ' '
      y += lineHeight
      wrapped = true
    }
    else {
      line = testLine
    }
  }
  context.fillText(line, x, y)
  return wrapped
}

http.createServer(function (req, res) {
  var canvas = new Canvas(281, 32)
  var context = canvas.getContext('2d')

  var name = decodeURIComponent(req.url)
    .replace(/^\/@?|\.png(?:\?.*)?$/g, '')
    .replace(/&gt;/g, '>')
    .replace(/&lt;/g, '<')
    .replace(/&amp;/g, '&')
    .replace(/&#39;/g, '\'')
    .replace(/&#34;/g, '"')
  var text = 'permanently banned ' + name + ' from the community.'

  context.fillStyle = '#a670fe'
  context.font = '500 12px Roboto'
  if (!wrapText(context, text, 0, 14, 281, 16)) {
    var newCanvas = new Canvas(281, 16)
    var newContext = newCanvas.getContext('2d')
    newContext.drawImage(canvas, 0, 0)
    canvas = newCanvas
  }

  res.writeHead(200, { 'content-type': 'image/png' })
  canvas.pngStream().pipe(res)

}).listen(PORT)