cartoon.js

var http = require('http');
var url = require('url');
var fs = require('fs');
var mkdirp = require('mkdirp');

var SCRIPTURL = 'http://www.dagbladet.no/tegneserie/pondusarkiv/serveconfig.php?';
var STRIPROOT = './strips/';
var GUESTFOLDER = STRIPROOT+'gjesteserie/';

var STRIP = process.argv[2];
var STRIPNAME = STRIP;
var isGuestSeries = false;
if (STRIP == null) {
  console.log('ERROR: Pass in the name of the strip');
  process.exit(0);
} else {
  if (STRIP.indexOf('gjesteserie') >= 0) {
    isGuestSeries = true;
    STRIPNAME = STRIP.substring(STRIP.indexOf('/')+1);
  }
}

var date = new Date();
var reqUrl = SCRIPTURL + 'date=' + getTime(date) + '&strip=' + STRIP;
var filename = getFilename(date);


getCartoonLocation(reqUrl);

function getCartoonLocation(url) {
  http.get(url, function(res) {
    var location = res.headers.location;
    if (location) {
      getCartoonData(location);
    } else {
      console.log('ERROR: Could not find location header');
    }
  }).on('error', function(e) {
    console.log("Got error: " + e.message);
  });
}

function getCartoonData(rawUrl) {
  var urlObj = url.parse(rawUrl);
  console.log(urlObj);
  http.get(urlObj, function(res) {
    if (isGuestSeries) {
      mkdirp(GUESTFOLDER+STRIPNAME, function() {
        writeData(res, GUESTFOLDER+STRIPNAME);
      });
    } else {
      mkdirp(STRIPROOT+STRIPNAME, function() {
        writeData(res, STRIPROOT+STRIP);
      });
    }
  }).on('error', function(e) {
    console.log("Got error: " + e.message);
  });
}

function writeData(res, filepath) {
  var file = fs.createWriteStream(filepath + '/' + filename);
  res.on('data', function(data) {
    file.write(data);
  }).on('end', function() {
    file.end();
    console.log(filename + ' downloaded');
  });
}

function getTime(date) {
  date = date.getTime() / 1000;
  return Math.floor(date);
}

function getFilename(dateObj) {
  var filename = dateObj.getFullYear() + '.';
  var month = dateObj.getMonth()+1;
  filename += month < 10 ? '0'+month : month;
  filename += '.';
  var dateInMonth = dateObj.getDate();
  filename += dateInMonth < 10 ? '0'+dateInMonth : dateInMonth;
  filename += '.png';
  return filename;
}