mod: code

format.json

@@ -1,1623 +0,0 @@
-[
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-    "protocol": "mhtml",
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js/format-utils.js

@@ -0,0 +1,250 @@
+const utils = require('./utils');
+const FORMATS = require('./formats');
+
+
+// Use these to help sort formats, higher index is better.
+const audioEncodingRanks = [
+  'mp4a',
+  'mp3',
+  'vorbis',
+  'aac',
+  'opus',
+  'flac',
+];
+const videoEncodingRanks = [
+  'mp4v',
+  'avc1',
+  'Sorenson H.283',
+  'MPEG-4 Visual',
+  'VP8',
+  'VP9',
+  'H.264',
+];
+
+const getVideoBitrate = format => format.bitrate || 0;
+const getVideoEncodingRank = format =>
+  videoEncodingRanks.findIndex(enc => format.codecs && format.codecs.includes(enc));
+const getAudioBitrate = format => format.audioBitrate || 0;
+const getAudioEncodingRank = format =>
+  audioEncodingRanks.findIndex(enc => format.codecs && format.codecs.includes(enc));
+
+
+/**
+ * Sort formats by a list of functions.
+ *
+ * @param {Object} a
+ * @param {Object} b
+ * @param {Array.<Function>} sortBy
+ * @returns {number}
+ */
+const sortFormatsBy = (a, b, sortBy) => {
+  let res = 0;
+  for (let fn of sortBy) {
+    res = fn(b) - fn(a);
+    if (res !== 0) {
+      break;
+    }
+  }
+  return res;
+};
+
+
+const sortFormatsByVideo = (a, b) => sortFormatsBy(a, b, [
+  format => parseInt(format.qualityLabel),
+  getVideoBitrate,
+  getVideoEncodingRank,
+]);
+
+
+const sortFormatsByAudio = (a, b) => sortFormatsBy(a, b, [
+  getAudioBitrate,
+  getAudioEncodingRank,
+]);
+
+
+/**
+ * Sort formats from highest quality to lowest.
+ *
+ * @param {Object} a
+ * @param {Object} b
+ * @returns {number}
+ */
+exports.sortFormats = (a, b) => sortFormatsBy(a, b, [
+  // Formats with both video and audio are ranked highest.
+  format => +!!format.isHLS,
+  format => +!!format.isDashMPD,
+  format => +(format.contentLength > 0),
+  format => +(format.hasVideo && format.hasAudio),
+  format => +format.hasVideo,
+  format => parseInt(format.qualityLabel) || 0,
+  getVideoBitrate,
+  getAudioBitrate,
+  getVideoEncodingRank,
+  getAudioEncodingRank,
+]);
+
+
+/**
+ * Choose a format depending on the given options.
+ *
+ * @param {Array.<Object>} formats
+ * @param {Object} options
+ * @returns {Object}
+ * @throws {Error} when no format matches the filter/format rules
+ */
+exports.chooseFormat = (formats, options) => {
+  if (typeof options.format === 'object') {
+    if (!options.format.url) {
+      throw Error('Invalid format given, did you use `ytdl.getInfo()`?');
+    }
+    return options.format;
+  }
+
+  if (options.filter) {
+    formats = exports.filterFormats(formats, options.filter);
+  }
+
+  // We currently only support HLS-Formats for livestreams
+  // So we (now) remove all non-HLS streams
+  if (formats.some(fmt => fmt.isHLS)) {
+    formats = formats.filter(fmt => fmt.isHLS || !fmt.isLive);
+  }
+
+  let format;
+  const quality = options.quality || 'highest';
+  switch (quality) {
+    case 'highest':
+      format = formats[0];
+      break;
+
+    case 'lowest':
+      format = formats[formats.length - 1];
+      break;
+
+    case 'highestaudio': {
+      formats = exports.filterFormats(formats, 'audio');
+      formats.sort(sortFormatsByAudio);
+      // Filter for only the best audio format
+      const bestAudioFormat = formats[0];
+      formats = formats.filter(f => sortFormatsByAudio(bestAudioFormat, f) === 0);
+      // Check for the worst video quality for the best audio quality and pick according
+      // This does not loose default sorting of video encoding and bitrate
+      const worstVideoQuality = formats.map(f => parseInt(f.qualityLabel) || 0).sort((a, b) => a - b)[0];
+      format = formats.find(f => (parseInt(f.qualityLabel) || 0) === worstVideoQuality);
+      break;
+    }
+
+    case 'lowestaudio':
+      formats = exports.filterFormats(formats, 'audio');
+      formats.sort(sortFormatsByAudio);
+      format = formats[formats.length - 1];
+      break;
+
+    case 'highestvideo': {
+      formats = exports.filterFormats(formats, 'video');
+      formats.sort(sortFormatsByVideo);
+      // Filter for only the best video format
+      const bestVideoFormat = formats[0];
+      formats = formats.filter(f => sortFormatsByVideo(bestVideoFormat, f) === 0);
+      // Check for the worst audio quality for the best video quality and pick according
+      // This does not loose default sorting of audio encoding and bitrate
+      const worstAudioQuality = formats.map(f => f.audioBitrate || 0).sort((a, b) => a - b)[0];
+      format = formats.find(f => (f.audioBitrate || 0) === worstAudioQuality);
+      break;
+    }
+
+    case 'lowestvideo':
+      formats = exports.filterFormats(formats, 'video');
+      formats.sort(sortFormatsByVideo);
+      format = formats[formats.length - 1];
+      break;
+
+    default:
+      format = getFormatByQuality(quality, formats);
+      break;
+  }
+
+  if (!format) {
+    throw Error(`No such format found: ${quality}`);
+  }
+  return format;
+};
+
+/**
+ * Gets a format based on quality or array of quality's
+ *
+ * @param {string|[string]} quality
+ * @param {[Object]} formats
+ * @returns {Object}
+ */
+const getFormatByQuality = (quality, formats) => {
+  let getFormat = itag => formats.find(format => `${format.itag}` === `${itag}`);
+  if (Array.isArray(quality)) {
+    return getFormat(quality.find(q => getFormat(q)));
+  } else {
+    return getFormat(quality);
+  }
+};
+
+
+/**
+ * @param {Array.<Object>} formats
+ * @param {Function} filter
+ * @returns {Array.<Object>}
+ */
+exports.filterFormats = (formats, filter) => {
+  let fn;
+  switch (filter) {
+    case 'videoandaudio':
+    case 'audioandvideo':
+      fn = format => format.hasVideo && format.hasAudio;
+      break;
+
+    case 'video':
+      fn = format => format.hasVideo;
+      break;
+
+    case 'videoonly':
+      fn = format => format.hasVideo && !format.hasAudio;
+      break;
+
+    case 'audio':
+      fn = format => format.hasAudio;
+      break;
+
+    case 'audioonly':
+      fn = format => !format.hasVideo && format.hasAudio;
+      break;
+
+    default:
+      if (typeof filter === 'function') {
+        fn = filter;
+      } else {
+        throw TypeError(`Given filter (${filter}) is not supported`);
+      }
+  }
+  return formats.filter(format => !!format.url && fn(format));
+};
+
+
+/**
+ * @param {Object} format
+ * @returns {Object}
+ */
+exports.addFormatMeta = format => {
+  format = Object.assign({}, FORMATS[format.itag], format);
+  format.hasVideo = !!format.qualityLabel;
+  format.hasAudio = !!format.audioBitrate;
+  format.container = format.mimeType ?
+    format.mimeType.split(';')[0].split('/')[1] : null;
+  format.codecs = format.mimeType ?
+    utils.between(format.mimeType, 'codecs="', '"') : null;
+  format.videoCodec = format.hasVideo && format.codecs ?
+    format.codecs.split(', ')[0] : null;
+  format.audioCodec = format.hasAudio && format.codecs ?
+    format.codecs.split(', ').slice(-1)[0] : null;
+  format.isLive = /\bsource[/=]yt_live_broadcast\b/.test(format.url);
+  format.isHLS = /\/manifest\/hls_(variant|playlist)\//.test(format.url);
+  format.isDashMPD = /\/manifest\/dash\//.test(format.url);
+  return format;
+};

js/formats.js

@@ -0,0 +1,524 @@
+/**
+ * http://en.wikipedia.org/wiki/YouTube#Quality_and_formats
+ */
+module.exports = {
+
+  5: {
+    mimeType: 'video/flv; codecs="Sorenson H.283, mp3"',
+    qualityLabel: '240p',
+    bitrate: 250000,
+    audioBitrate: 64,
+  },
+
+  6: {
+    mimeType: 'video/flv; codecs="Sorenson H.263, mp3"',
+    qualityLabel: '270p',
+    bitrate: 800000,
+    audioBitrate: 64,
+  },
+
+  13: {
+    mimeType: 'video/3gp; codecs="MPEG-4 Visual, aac"',
+    qualityLabel: null,
+    bitrate: 500000,
+    audioBitrate: null,
+  },
+
+  17: {
+    mimeType: 'video/3gp; codecs="MPEG-4 Visual, aac"',
+    qualityLabel: '144p',
+    bitrate: 50000,
+    audioBitrate: 24,
+  },
+
+  18: {
+    mimeType: 'video/mp4; codecs="H.264, aac"',
+    qualityLabel: '360p',
+    bitrate: 500000,
+    audioBitrate: 96,
+  },
+
+  22: {
+    mimeType: 'video/mp4; codecs="H.264, aac"',
+    qualityLabel: '720p',
+    bitrate: 2000000,
+    audioBitrate: 192,
+  },
+
+  34: {
+    mimeType: 'video/flv; codecs="H.264, aac"',
+    qualityLabel: '360p',
+    bitrate: 500000,
+    audioBitrate: 128,
+  },
+
+  35: {
+    mimeType: 'video/flv; codecs="H.264, aac"',
+    qualityLabel: '480p',
+    bitrate: 800000,
+    audioBitrate: 128,
+  },
+
+  36: {
+    mimeType: 'video/3gp; codecs="MPEG-4 Visual, aac"',
+    qualityLabel: '240p',
+    bitrate: 175000,
+    audioBitrate: 32,
+  },
+
+  37: {
+    mimeType: 'video/mp4; codecs="H.264, aac"',
+    qualityLabel: '1080p',
+    bitrate: 3000000,
+    audioBitrate: 192,
+  },
+
+  38: {
+    mimeType: 'video/mp4; codecs="H.264, aac"',
+    qualityLabel: '3072p',
+    bitrate: 3500000,
+    audioBitrate: 192,
+  },
+
+  43: {
+    mimeType: 'video/webm; codecs="VP8, vorbis"',
+    qualityLabel: '360p',
+    bitrate: 500000,
+    audioBitrate: 128,
+  },
+
+  44: {
+    mimeType: 'video/webm; codecs="VP8, vorbis"',
+    qualityLabel: '480p',
+    bitrate: 1000000,
+    audioBitrate: 128,
+  },
+
+  45: {
+    mimeType: 'video/webm; codecs="VP8, vorbis"',
+    qualityLabel: '720p',
+    bitrate: 2000000,
+    audioBitrate: 192,
+  },
+
+  46: {
+    mimeType: 'audio/webm; codecs="vp8, vorbis"',
+    qualityLabel: '1080p',
+    bitrate: null,
+    audioBitrate: 192,
+  },
+
+  82: {
+    mimeType: 'video/mp4; codecs="H.264, aac"',
+    qualityLabel: '360p',
+    bitrate: 500000,
+    audioBitrate: 96,
+  },
+
+  83: {
+    mimeType: 'video/mp4; codecs="H.264, aac"',
+    qualityLabel: '240p',
+    bitrate: 500000,
+    audioBitrate: 96,
+  },
+
+  84: {
+    mimeType: 'video/mp4; codecs="H.264, aac"',
+    qualityLabel: '720p',
+    bitrate: 2000000,
+    audioBitrate: 192,
+  },
+
+  85: {
+    mimeType: 'video/mp4; codecs="H.264, aac"',
+    qualityLabel: '1080p',
+    bitrate: 3000000,
+    audioBitrate: 192,
+  },
+
+  91: {
+    mimeType: 'video/ts; codecs="H.264, aac"',
+    qualityLabel: '144p',
+    bitrate: 100000,
+    audioBitrate: 48,
+  },
+
+  92: {
+    mimeType: 'video/ts; codecs="H.264, aac"',
+    qualityLabel: '240p',
+    bitrate: 150000,
+    audioBitrate: 48,
+  },
+
+  93: {
+    mimeType: 'video/ts; codecs="H.264, aac"',
+    qualityLabel: '360p',
+    bitrate: 500000,
+    audioBitrate: 128,
+  },
+
+  94: {
+    mimeType: 'video/ts; codecs="H.264, aac"',
+    qualityLabel: '480p',
+    bitrate: 800000,
+    audioBitrate: 128,
+  },
+
+  95: {
+    mimeType: 'video/ts; codecs="H.264, aac"',
+    qualityLabel: '720p',
+    bitrate: 1500000,
+    audioBitrate: 256,
+  },
+
+  96: {
+    mimeType: 'video/ts; codecs="H.264, aac"',
+    qualityLabel: '1080p',
+    bitrate: 2500000,
+    audioBitrate: 256,
+  },
+
+  100: {
+    mimeType: 'audio/webm; codecs="VP8, vorbis"',
+    qualityLabel: '360p',
+    bitrate: null,
+    audioBitrate: 128,
+  },
+
+  101: {
+    mimeType: 'audio/webm; codecs="VP8, vorbis"',
+    qualityLabel: '360p',
+    bitrate: null,
+    audioBitrate: 192,
+  },
+
+  102: {
+    mimeType: 'audio/webm; codecs="VP8, vorbis"',
+    qualityLabel: '720p',
+    bitrate: null,
+    audioBitrate: 192,
+  },
+
+  120: {
+    mimeType: 'video/flv; codecs="H.264, aac"',
+    qualityLabel: '720p',
+    bitrate: 2000000,
+    audioBitrate: 128,
+  },
+
+  127: {
+    mimeType: 'audio/ts; codecs="aac"',
+    qualityLabel: null,
+    bitrate: null,
+    audioBitrate: 96,
+  },
+
+  128: {
+    mimeType: 'audio/ts; codecs="aac"',
+    qualityLabel: null,
+    bitrate: null,
+    audioBitrate: 96,
+  },
+
+  132: {
+    mimeType: 'video/ts; codecs="H.264, aac"',
+    qualityLabel: '240p',
+    bitrate: 150000,
+    audioBitrate: 48,
+  },
+
+  133: {
+    mimeType: 'video/mp4; codecs="H.264"',
+    qualityLabel: '240p',
+    bitrate: 200000,
+    audioBitrate: null,
+  },
+
+  134: {
+    mimeType: 'video/mp4; codecs="H.264"',
+    qualityLabel: '360p',
+    bitrate: 300000,
+    audioBitrate: null,
+  },
+
+  135: {
+    mimeType: 'video/mp4; codecs="H.264"',
+    qualityLabel: '480p',
+    bitrate: 500000,
+    audioBitrate: null,
+  },
+
+  136: {
+    mimeType: 'video/mp4; codecs="H.264"',
+    qualityLabel: '720p',
+    bitrate: 1000000,
+    audioBitrate: null,
+  },
+
+  137: {
+    mimeType: 'video/mp4; codecs="H.264"',
+    qualityLabel: '1080p',
+    bitrate: 2500000,
+    audioBitrate: null,
+  },
+
+  138: {
+    mimeType: 'video/mp4; codecs="H.264"',
+    qualityLabel: '4320p',
+    bitrate: 13500000,
+    audioBitrate: null,
+  },
+
+  139: {
+    mimeType: 'audio/mp4; codecs="aac"',
+    qualityLabel: null,
+    bitrate: null,
+    audioBitrate: 48,
+  },
+
+  140: {
+    mimeType: 'audio/m4a; codecs="aac"',
+    qualityLabel: null,
+    bitrate: null,
+    audioBitrate: 128,
+  },
+
+  141: {
+    mimeType: 'audio/mp4; codecs="aac"',
+    qualityLabel: null,
+    bitrate: null,
+    audioBitrate: 256,
+  },
+
+  151: {
+    mimeType: 'video/ts; codecs="H.264, aac"',
+    qualityLabel: '720p',
+    bitrate: 50000,
+    audioBitrate: 24,
+  },
+
+  160: {
+    mimeType: 'video/mp4; codecs="H.264"',
+    qualityLabel: '144p',
+    bitrate: 100000,
+    audioBitrate: null,
+  },
+
+  171: {
+    mimeType: 'audio/webm; codecs="vorbis"',
+    qualityLabel: null,
+    bitrate: null,
+    audioBitrate: 128,
+  },
+
+  172: {
+    mimeType: 'audio/webm; codecs="vorbis"',
+    qualityLabel: null,
+    bitrate: null,
+    audioBitrate: 192,
+  },
+
+  242: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '240p',
+    bitrate: 100000,
+    audioBitrate: null,
+  },
+
+  243: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '360p',
+    bitrate: 250000,
+    audioBitrate: null,
+  },
+
+  244: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '480p',
+    bitrate: 500000,
+    audioBitrate: null,
+  },
+
+  247: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '720p',
+    bitrate: 700000,
+    audioBitrate: null,
+  },
+
+  248: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '1080p',
+    bitrate: 1500000,
+    audioBitrate: null,
+  },
+
+  249: {
+    mimeType: 'audio/webm; codecs="opus"',
+    qualityLabel: null,
+    bitrate: null,
+    audioBitrate: 48,
+  },
+
+  250: {
+    mimeType: 'audio/webm; codecs="opus"',
+    qualityLabel: null,
+    bitrate: null,
+    audioBitrate: 64,
+  },
+
+  251: {
+    mimeType: 'audio/webm; codecs="opus"',
+    qualityLabel: null,
+    bitrate: null,
+    audioBitrate: 160,
+  },
+
+  264: {
+    mimeType: 'video/mp4; codecs="H.264"',
+    qualityLabel: '1440p',
+    bitrate: 4000000,
+    audioBitrate: null,
+  },
+
+  266: {
+    mimeType: 'video/mp4; codecs="H.264"',
+    qualityLabel: '2160p',
+    bitrate: 12500000,
+    audioBitrate: null,
+  },
+
+  271: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '1440p',
+    bitrate: 9000000,
+    audioBitrate: null,
+  },
+
+  272: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '4320p',
+    bitrate: 20000000,
+    audioBitrate: null,
+  },
+
+  278: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '144p 30fps',
+    bitrate: 80000,
+    audioBitrate: null,
+  },
+
+  298: {
+    mimeType: 'video/mp4; codecs="H.264"',
+    qualityLabel: '720p',
+    bitrate: 3000000,
+    audioBitrate: null,
+  },
+
+  299: {
+    mimeType: 'video/mp4; codecs="H.264"',
+    qualityLabel: '1080p',
+    bitrate: 5500000,
+    audioBitrate: null,
+  },
+
+  300: {
+    mimeType: 'video/ts; codecs="H.264, aac"',
+    qualityLabel: '720p',
+    bitrate: 1318000,
+    audioBitrate: 48,
+  },
+
+  302: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '720p HFR',
+    bitrate: 2500000,
+    audioBitrate: null,
+  },
+
+  303: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '1080p HFR',
+    bitrate: 5000000,
+    audioBitrate: null,
+  },
+
+  308: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '1440p HFR',
+    bitrate: 10000000,
+    audioBitrate: null,
+  },
+
+  313: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '2160p',
+    bitrate: 13000000,
+    audioBitrate: null,
+  },
+
+  315: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '2160p HFR',
+    bitrate: 20000000,
+    audioBitrate: null,
+  },
+
+  330: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '144p HDR, HFR',
+    bitrate: 80000,
+    audioBitrate: null,
+  },
+
+  331: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '240p HDR, HFR',
+    bitrate: 100000,
+    audioBitrate: null,
+  },
+
+  332: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '360p HDR, HFR',
+    bitrate: 250000,
+    audioBitrate: null,
+  },
+
+  333: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '240p HDR, HFR',
+    bitrate: 500000,
+    audioBitrate: null,
+  },
+
+  334: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '720p HDR, HFR',
+    bitrate: 1000000,
+    audioBitrate: null,
+  },
+
+  335: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '1080p HDR, HFR',
+    bitrate: 1500000,
+    audioBitrate: null,
+  },
+
+  336: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '1440p HDR, HFR',
+    bitrate: 5000000,
+    audioBitrate: null,
+  },
+
+  337: {
+    mimeType: 'video/webm; codecs="VP9"',
+    qualityLabel: '2160p HDR, HFR',
+    bitrate: 12000000,
+    audioBitrate: null,
+  },
+
+};

js/info.js

@@ -0,0 +1,497 @@
+const querystring = require('querystring');
+const sax = require('sax');
+const miniget = require('miniget');
+const utils = require('./utils');
+// Forces Node JS version of setTimeout for Electron based applications
+const {setTimeout} = require('timers');
+const formatUtils = require('./format-utils');
+const urlUtils = require('./url-utils');
+const extras = require('./info-extras');
+const sig = require('./sig');
+
+const BASE_URL = 'https://www.youtube.com/watch?v=';
+
+
+// Cache for cver used in getVideoInfoPage
+let cver = '2.20210622.10.00';
+
+
+// Special error class used to determine if an error is unrecoverable,
+// as in, ytdl-core should not try again to fetch the video metadata.
+// In this case, the video is usually unavailable in some way.
+class UnrecoverableError extends Error {
+}
+
+
+// List of URLs that show up in `notice_url` for age restricted videos.
+const AGE_RESTRICTED_URLS = [
+    'support.google.com/youtube/?p=age_restrictions',
+    'youtube.com/t/community_guidelines',
+];
+
+
+/**
+ * Gets info from a video without getting additional formats.
+ *
+ * @param {string} id
+ * @param {Object} options
+ * @returns {Promise<Object>}
+ */
+exports.getBasicInfo = async (id, options) => {
+    if (options.IPv6Block) {
+        options.requestOptions = Object.assign({}, options.requestOptions, {
+            family: 6,
+            localAddress: utils.getRandomIPv6(options.IPv6Block),
+        });
+    }
+    const retryOptions = Object.assign({}, miniget.defaultOptions, options.requestOptions);
+    options.requestOptions = Object.assign({}, options.requestOptions, {});
+    options.requestOptions.headers = Object.assign({},
+        {
+            // eslint-disable-next-line max-len
+            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.101 Safari/537.36',
+        }, options.requestOptions.headers);
+    const validate = info => {
+        let playErr = utils.playError(info.player_response, ['ERROR'], UnrecoverableError);
+        let privateErr = privateVideoError(info.player_response);
+        if (playErr || privateErr) {
+            throw playErr || privateErr;
+        }
+        return info && info.player_response && (
+            info.player_response.streamingData || isRental(info.player_response) || isNotYetBroadcasted(info.player_response)
+        );
+    };
+    let info = await pipeline([id, options], validate, retryOptions, [
+        getWatchHTMLPage,
+        getWatchJSONPage,
+        getVideoInfoPage,
+    ]);
+
+    Object.assign(info, {
+        formats: parseFormats(info.player_response),
+        related_videos: extras.getRelatedVideos(info),
+    });
+
+    // Add additional properties to info.
+    const media = extras.getMedia(info);
+    const additional = {
+        author: extras.getAuthor(info),
+        media,
+        likes: extras.getLikes(info),
+        dislikes: extras.getDislikes(info),
+        age_restricted: !!(media && AGE_RESTRICTED_URLS.some(url =>
+                Object.values(media).some(v => typeof v === 'string' && v.includes(url)))
+        ),
+
+        // Give the standard link to the video.
+        video_url: BASE_URL + id,
+        storyboards: extras.getStoryboards(info),
+        chapters: extras.getChapters(info),
+    };
+
+    info.videoDetails = extras.cleanVideoDetails(Object.assign({},
+        info.player_response && info.player_response.microformat &&
+        info.player_response.microformat.playerMicroformatRenderer,
+        info.player_response && info.player_response.videoDetails, additional), info);
+
+    return info;
+};
+
+const privateVideoError = player_response => {
+    let playability = player_response && player_response.playabilityStatus;
+    if (playability && playability.status === 'LOGIN_REQUIRED' && playability.messages &&
+        playability.messages.filter(m => /This is a private video/.test(m)).length) {
+        return new UnrecoverableError(playability.reason || (playability.messages && playability.messages[0]));
+    } else {
+        return null;
+    }
+};
+
+
+const isRental = player_response => {
+    let playability = player_response.playabilityStatus;
+    return playability && playability.status === 'UNPLAYABLE' &&
+        playability.errorScreen && playability.errorScreen.playerLegacyDesktopYpcOfferRenderer;
+};
+
+
+const isNotYetBroadcasted = player_response => {
+    let playability = player_response.playabilityStatus;
+    return playability && playability.status === 'LIVE_STREAM_OFFLINE';
+};
+
+
+const getWatchHTMLURL = (id, options) => `${BASE_URL + id}&hl=${options.lang || 'en'}`;
+
+const getWatchHTMLPageBody = (id, options) => {
+    const url = getWatchHTMLURL(id, options);
+    return exports.watchPageCache.getOrSet(url, () => utils.exposedMiniget(url, options).text());
+};
+
+
+const EMBED_URL = 'https://www.youtube.com/embed/';
+
+const getEmbedPageBody = (id, options) => {
+    const embedUrl = `${EMBED_URL + id}?hl=${options.lang || 'en'}`;
+    return utils.exposedMiniget(embedUrl, options).text();
+};
+
+const getHTML5player = body => {
+    let html5playerRes =
+        /<script\s+src="([^"]+)"(?:\s+type="text\/javascript")?\s+name="player_ias\/base"\s*>|"jsUrl":"([^"]+)"/
+            .exec(body);
+    return html5playerRes ? html5playerRes[1] || html5playerRes[2] : null;
+};
+
+
+const getIdentityToken = async (id, options, key, throwIfNotFound) => {
+    let page = await getWatchHTMLPageBody(id, options);
+    let match = page.match(/(["'])ID_TOKEN\1[:,]\s?"([^"]+)"/);
+    if (!match && throwIfNotFound) {
+        throw new UnrecoverableError('Cookie header used in request, but unable to find YouTube identity token');
+    }
+    return match && match[2];
+};
+
+/**
+ * Goes through each endpoint in the pipeline, retrying on failure if the error is recoverable.
+ * If unable to succeed with one endpoint, moves onto the next one.
+ *
+ * @param {Array.<Object>} args
+ * @param {Function} validate
+ * @param {Object} retryOptions
+ * @param {Array.<Function>} endpoints
+ * @returns {[Object, Object, Object]}
+ */
+const pipeline = async (args, validate, retryOptions, endpoints) => {
+    let info;
+    for (let func of endpoints) {
+        try {
+            const newInfo = await retryFunc(func, args.concat([info]), retryOptions);
+            if (newInfo.player_response) {
+                newInfo.player_response.videoDetails = assign(
+                    info && info.player_response && info.player_response.videoDetails,
+                    newInfo.player_response.videoDetails);
+                newInfo.player_response = assign(info && info.player_response, newInfo.player_response);
+            }
+            info = assign(info, newInfo);
+            if (validate(info, false)) {
+                break;
+            }
+        } catch (err) {
+            if (err instanceof UnrecoverableError || func === endpoints[endpoints.length - 1]) {
+                throw err;
+            }
+            // Unable to find video metadata... so try next endpoint.
+        }
+    }
+    return info;
+};
+
+
+/**
+ * Like Object.assign(), but ignores `null` and `undefined` from `source`.
+ *
+ * @param {Object} target
+ * @param {Object} source
+ * @returns {Object}
+ */
+const assign = (target, source) => {
+    if (!target || !source) {
+        return target || source;
+    }
+    for (let [key, value] of Object.entries(source)) {
+        if (value !== null && value !== undefined) {
+            target[key] = value;
+        }
+    }
+    return target;
+};
+
+
+/**
+ * Given a function, calls it with `args` until it's successful,
+ * or until it encounters an unrecoverable error.
+ * Currently, any error from miniget is considered unrecoverable. Errors such as
+ * too many redirects, invalid URL, status code 404, status code 502.
+ *
+ * @param {Function} func
+ * @param {Array.<Object>} args
+ * @param {Object} options
+ * @param {number} options.maxRetries
+ * @param {Object} options.backoff
+ * @param {number} options.backoff.inc
+ */
+const retryFunc = async (func, args, options) => {
+    let currentTry = 0, result;
+    while (currentTry <= options.maxRetries) {
+        try {
+            result = await func(...args);
+            break;
+        } catch (err) {
+            if (err instanceof UnrecoverableError ||
+                (err instanceof miniget.MinigetError && err.statusCode < 500) || currentTry >= options.maxRetries) {
+                throw err;
+            }
+            let wait = Math.min(++currentTry * options.backoff.inc, options.backoff.max);
+            await new Promise(resolve => setTimeout(resolve, wait));
+        }
+    }
+    return result;
+};
+
+
+const jsonClosingChars = /^[)\]}'\s]+/;
+
+const parseJSON = (source, varName, json) => {
+    if (!json || typeof json === 'object') {
+        return json;
+    } else {
+        try {
+            json = json.replace(jsonClosingChars, '');
+            return JSON.parse(json);
+        } catch (err) {
+            throw Error(`Error parsing ${varName} in ${source}: ${err.message}`);
+        }
+    }
+};
+
+
+const findJSON = (source, varName, body, left, right, prependJSON) => {
+    let jsonStr = utils.between(body, left, right);
+    if (!jsonStr) {
+        throw Error(`Could not find ${varName} in ${source}`);
+    }
+    return parseJSON(source, varName, utils.cutAfterJS(`${prependJSON}${jsonStr}`));
+};
+
+
+const findPlayerResponse = (source, info) => {
+    const player_response = info && (
+        (info.args && info.args.player_response) ||
+        info.player_response || info.playerResponse || info.embedded_player_response);
+    return parseJSON(source, 'player_response', player_response);
+};
+
+
+const getWatchJSONURL = (id, options) => `${getWatchHTMLURL(id, options)}&pbj=1`;
+const getWatchJSONPage = async (id, options) => {
+    const reqOptions = Object.assign({headers: {}}, options.requestOptions);
+    let cookie = reqOptions.headers.Cookie || reqOptions.headers.cookie;
+    reqOptions.headers = Object.assign({
+        'x-youtube-client-name': '1',
+        'x-youtube-client-version': cver,
+        'x-youtube-identity-token': exports.cookieCache.get(cookie || 'browser') || '',
+    }, reqOptions.headers);
+
+    const setIdentityToken = async (key, throwIfNotFound) => {
+        if (reqOptions.headers['x-youtube-identity-token']) {
+            return;
+        }
+        reqOptions.headers['x-youtube-identity-token'] = await getIdentityToken(id, options, key, throwIfNotFound);
+    };
+
+    if (cookie) {
+        await setIdentityToken(cookie, true);
+    }
+
+    const jsonUrl = getWatchJSONURL(id, options);
+    const body = await utils.exposedMiniget(jsonUrl, options, reqOptions).text();
+    let parsedBody = parseJSON('watch.json', 'body', body);
+    if (parsedBody.reload === 'now') {
+        await setIdentityToken('browser', false);
+    }
+    if (parsedBody.reload === 'now' || !Array.isArray(parsedBody)) {
+        throw Error('Unable to retrieve video metadata in watch.json');
+    }
+    let info = parsedBody.reduce((part, curr) => Object.assign(curr, part), {});
+    info.player_response = findPlayerResponse('watch.json', info);
+    info.html5player = info.player && info.player.assets && info.player.assets.js;
+
+    return info;
+};
+
+
+const getWatchHTMLPage = async (id, options) => {
+    let body = await getWatchHTMLPageBody(id, options);
+    let info = {page: 'watch'};
+    try {
+        cver = utils.between(body, '{"key":"cver","value":"', '"}');
+        info.player_response = findJSON('watch.html', 'player_response',
+            body, /\bytInitialPlayerResponse\s*=\s*\{/i, '</script>', '{');
+    } catch (err) {
+        let args = findJSON('watch.html', 'player_response', body, /\bytplayer\.config\s*=\s*{/, '</script>', '{');
+        info.player_response = findPlayerResponse('watch.html', args);
+    }
+    info.response = findJSON('watch.html', 'response', body, /\bytInitialData("\])?\s*=\s*\{/i, '</script>', '{');
+    info.html5player = getHTML5player(body);
+    return info;
+};
+
+
+const INFO_HOST = 'www.youtube.com';
+const INFO_PATH = '/get_video_info';
+const VIDEO_EURL = 'https://youtube.googleapis.com/v/';
+const getVideoInfoPage = async (id, options) => {
+    const url = new URL(`https://${INFO_HOST}${INFO_PATH}`);
+    url.searchParams.set('video_id', id);
+    url.searchParams.set('c', 'TVHTML5');
+    url.searchParams.set('cver', `7${cver.substr(1)}`);
+    url.searchParams.set('eurl', VIDEO_EURL + id);
+    url.searchParams.set('ps', 'default');
+    url.searchParams.set('gl', 'US');
+    url.searchParams.set('hl', options.lang || 'en');
+    url.searchParams.set('html5', '1');
+    const body = await utils.exposedMiniget(url.toString(), options).text();
+    let info = querystring.parse(body);
+    info.player_response = findPlayerResponse('get_video_info', info);
+    return info;
+};
+
+
+/**
+ * @param {Object} player_response
+ * @returns {Array.<Object>}
+ */
+const parseFormats = player_response => {
+    let formats = [];
+    if (player_response && player_response.streamingData) {
+        formats = formats
+            .concat(player_response.streamingData.formats || [])
+            .concat(player_response.streamingData.adaptiveFormats || []);
+    }
+    return formats;
+};
+
+
+/**
+ * Gets info from a video additional formats and deciphered URLs.
+ *
+ * @param {string} id
+ * @param {Object} options
+ * @returns {Promise<Object>}
+ */
+exports.getInfo = async (id, options) => {
+    let info = await exports.getBasicInfo(id, options);
+    const hasManifest =
+        info.player_response && info.player_response.streamingData && (
+            info.player_response.streamingData.dashManifestUrl ||
+            info.player_response.streamingData.hlsManifestUrl
+        );
+    let funcs = [];
+    if (info.formats.length) {
+        info.html5player = info.html5player ||
+            getHTML5player(await getWatchHTMLPageBody(id, options)) || getHTML5player(await getEmbedPageBody(id, options));
+        if (!info.html5player) {
+            throw Error('Unable to find html5player file');
+        }
+        const html5player = new URL(info.html5player, BASE_URL).toString();
+        funcs.push(sig.decipherFormats(info.formats, html5player, options));
+    }
+    if (hasManifest && info.player_response.streamingData.dashManifestUrl) {
+        let url = info.player_response.streamingData.dashManifestUrl;
+        funcs.push(getDashManifest(url, options));
+    }
+    if (hasManifest && info.player_response.streamingData.hlsManifestUrl) {
+        let url = info.player_response.streamingData.hlsManifestUrl;
+        funcs.push(getM3U8(url, options));
+    }
+
+    let results = await Promise.all(funcs);
+    info.formats = Object.values(Object.assign({}, ...results));
+    info.formats = info.formats.map(formatUtils.addFormatMeta);
+    info.formats.sort(formatUtils.sortFormats);
+    info.full = true;
+    return info;
+};
+
+
+/**
+ * Gets additional DASH formats.
+ *
+ * @param {string} url
+ * @param {Object} options
+ * @returns {Promise<Array.<Object>>}
+ */
+const getDashManifest = (url, options) => new Promise((resolve, reject) => {
+    let formats = {};
+    const parser = sax.parser(false);
+    parser.onerror = reject;
+    let adaptationSet;
+    parser.onopentag = node => {
+        if (node.name === 'ADAPTATIONSET') {
+            adaptationSet = node.attributes;
+        } else if (node.name === 'REPRESENTATION') {
+            const itag = parseInt(node.attributes.ID);
+            if (!isNaN(itag)) {
+                formats[url] = Object.assign({
+                    itag, url,
+                    bitrate: parseInt(node.attributes.BANDWIDTH),
+                    mimeType: `${adaptationSet.MIMETYPE}; codecs="${node.attributes.CODECS}"`,
+                }, node.attributes.HEIGHT ? {
+                    width: parseInt(node.attributes.WIDTH),
+                    height: parseInt(node.attributes.HEIGHT),
+                    fps: parseInt(node.attributes.FRAMERATE),
+                } : {
+                    audioSampleRate: node.attributes.AUDIOSAMPLINGRATE,
+                });
+            }
+        }
+    };
+    parser.onend = () => {
+        resolve(formats);
+    };
+    const req = utils.exposedMiniget(new URL(url, BASE_URL).toString(), options);
+    req.setEncoding('utf8');
+    req.on('error', reject);
+    req.on('data', chunk => {
+        parser.write(chunk);
+    });
+    req.on('end', parser.close.bind(parser));
+});
+
+
+/**
+ * Gets additional formats.
+ *
+ * @param {string} url
+ * @param {Object} options
+ * @returns {Promise<Array.<Object>>}
+ */
+const getM3U8 = async (url, options) => {
+    url = new URL(url, BASE_URL);
+    const body = await utils.exposedMiniget(url.toString(), options).text();
+    let formats = {};
+    body
+        .split('\n')
+        .filter(line => /^https?:\/\//.test(line))
+        .forEach(line => {
+            const itag = parseInt(line.match(/\/itag\/(\d+)\//)[1]);
+            formats[line] = {itag, url: line};
+        });
+    return formats;
+};
+
+
+// Cache get info functions.
+// In case a user wants to get a video's info before downloading.
+for (let funcName of ['getBasicInfo', 'getInfo']) {
+    /**
+     * @param {string} link
+     * @param {Object} options
+     * @returns {Promise<Object>}
+     */
+    const func = exports[funcName];
+    exports[funcName] = async (link, options = {}) => {
+        let id = await urlUtils.getVideoID(link);
+        const key = [funcName, id, options.lang].join('-');
+        return exports.cache.getOrSet(key, () => func(id, options));
+    };
+}
+
+
+// Export a few helpers.
+exports.validateID = urlUtils.validateID;
+exports.validateURL = urlUtils.validateURL;
+exports.getURLVideoID = urlUtils.getURLVideoID;
+exports.getVideoID = urlUtils.getVideoID;

js/utils.js

@@ -0,0 +1,286 @@
+const miniget = require('miniget');
+
+
+/**
+ * Extract string inbetween another.
+ *
+ * @param {string} haystack
+ * @param {string} left
+ * @param {string} right
+ * @returns {string}
+ */
+exports.between = (haystack, left, right) => {
+  let pos;
+  if (left instanceof RegExp) {
+    const match = haystack.match(left);
+    if (!match) { return ''; }
+    pos = match.index + match[0].length;
+  } else {
+    pos = haystack.indexOf(left);
+    if (pos === -1) { return ''; }
+    pos += left.length;
+  }
+  haystack = haystack.slice(pos);
+  pos = haystack.indexOf(right);
+  if (pos === -1) { return ''; }
+  haystack = haystack.slice(0, pos);
+  return haystack;
+};
+
+
+/**
+ * Get a number from an abbreviated number string.
+ *
+ * @param {string} string
+ * @returns {number}
+ */
+exports.parseAbbreviatedNumber = string => {
+  const match = string
+    .replace(',', '.')
+    .replace(' ', '')
+    .match(/([\d,.]+)([MK]?)/);
+  if (match) {
+    let [, num, multi] = match;
+    num = parseFloat(num);
+    return Math.round(multi === 'M' ? num * 1000000 :
+      multi === 'K' ? num * 1000 : num);
+  }
+  return null;
+};
+
+/**
+ * Escape sequences for cutAfterJS
+ * @param {string} start the character string the escape sequence
+ * @param {string} end the character string to stop the escape seequence
+ * @param {undefined|Regex} startPrefix a regex to check against the preceding 10 characters
+ */
+const ESCAPING_SEQUENZES = [
+  // Strings
+  { start: '"', end: '"' },
+  { start: "'", end: "'" },
+  { start: '`', end: '`' },
+  // RegeEx
+  { start: '/', end: '/', startPrefix: /(^|[[{:;,/])\s?$/ },
+];
+
+/**
+ * Match begin and end braces of input JS, return only JS
+ *
+ * @param {string} mixedJson
+ * @returns {string}
+*/
+exports.cutAfterJS = mixedJson => {
+  // Define the general open and closing tag
+  let open, close;
+  if (mixedJson[0] === '[') {
+    open = '[';
+    close = ']';
+  } else if (mixedJson[0] === '{') {
+    open = '{';
+    close = '}';
+  }
+
+  if (!open) {
+    throw new Error(`Can't cut unsupported JSON (need to begin with [ or { ) but got: ${mixedJson[0]}`);
+  }
+
+  // States if the loop is currently inside an escaped js object
+  let isEscapedObject = null;
+
+  // States if the current character is treated as escaped or not
+  let isEscaped = false;
+
+  // Current open brackets to be closed
+  let counter = 0;
+
+  let i;
+  // Go through all characters from the start
+  for (i = 0; i < mixedJson.length; i++) {
+    // End of current escaped object
+    if (!isEscaped && isEscapedObject !== null && mixedJson[i] === isEscapedObject.end) {
+      isEscapedObject = null;
+      continue;
+    // Might be the start of a new escaped object
+    } else if (!isEscaped && isEscapedObject === null) {
+      for (const escaped of ESCAPING_SEQUENZES) {
+        if (mixedJson[i] !== escaped.start) continue;
+        // Test startPrefix against last 10 characters
+        if (!escaped.startPrefix || mixedJson.substring(i - 10, i).match(escaped.startPrefix)) {
+          isEscapedObject = escaped;
+          break;
+        }
+      }
+      // Continue if we found a new escaped object
+      if (isEscapedObject !== null) {
+        continue;
+      }
+    }
+
+    // Toggle the isEscaped boolean for every backslash
+    // Reset for every regular character
+    isEscaped = mixedJson[i] === '\\' && !isEscaped;
+
+    if (isEscapedObject !== null) continue;
+
+    if (mixedJson[i] === open) {
+      counter++;
+    } else if (mixedJson[i] === close) {
+      counter--;
+    }
+
+    // All brackets have been closed, thus end of JSON is reached
+    if (counter === 0) {
+      // Return the cut JSON
+      return mixedJson.substring(0, i + 1);
+    }
+  }
+
+  // We ran through the whole string and ended up with an unclosed bracket
+  throw Error("Can't cut unsupported JSON (no matching closing bracket found)");
+};
+
+
+/**
+ * Checks if there is a playability error.
+ *
+ * @param {Object} player_response
+ * @param {Array.<string>} statuses
+ * @param {Error} ErrorType
+ * @returns {!Error}
+ */
+exports.playError = (player_response, statuses, ErrorType = Error) => {
+  let playability = player_response && player_response.playabilityStatus;
+  if (playability && statuses.includes(playability.status)) {
+    return new ErrorType(playability.reason || (playability.messages && playability.messages[0]));
+  }
+  return null;
+};
+
+/**
+ * Does a miniget request and calls options.requestCallback if present
+ *
+ * @param {string} url the request url
+ * @param {Object} options an object with optional requestOptions and requestCallback parameters
+ * @param {Object} requestOptionsOverwrite overwrite of options.requestOptions
+ * @returns {miniget.Stream}
+ */
+exports.exposedMiniget = (url, options = {}, requestOptionsOverwrite) => {
+  const req = miniget(url, requestOptionsOverwrite || options.requestOptions);
+  if (typeof options.requestCallback === 'function') options.requestCallback(req);
+  return req;
+};
+
+/**
+ * Temporary helper to help deprecating a few properties.
+ *
+ * @param {Object} obj
+ * @param {string} prop
+ * @param {Object} value
+ * @param {string} oldPath
+ * @param {string} newPath
+ */
+exports.deprecate = (obj, prop, value, oldPath, newPath) => {
+  Object.defineProperty(obj, prop, {
+    get: () => {
+      console.warn(`\`${oldPath}\` will be removed in a near future release, ` +
+        `use \`${newPath}\` instead.`);
+      return value;
+    },
+  });
+};
+
+
+// Check for updates.
+const pkg = require('../package.json');
+const UPDATE_INTERVAL = 1000 * 60 * 60 * 12;
+exports.lastUpdateCheck = 0;
+exports.checkForUpdates = () => {
+  if (!process.env.YTDL_NO_UPDATE && !pkg.version.startsWith('0.0.0-') &&
+    Date.now() - exports.lastUpdateCheck >= UPDATE_INTERVAL) {
+    exports.lastUpdateCheck = Date.now();
+    return miniget('https://api.github.com/repos/fent/node-ytdl-core/releases/latest', {
+      headers: { 'User-Agent': 'ytdl-core' },
+    }).text().then(response => {
+      if (JSON.parse(response).tag_name !== `v${pkg.version}`) {
+        console.warn('\x1b[33mWARNING:\x1B[0m ytdl-core is out of date! Update with "npm install ytdl-core@latest".');
+      }
+    }, err => {
+      console.warn('Error checking for updates:', err.message);
+      console.warn('You can disable this check by setting the `YTDL_NO_UPDATE` env variable.');
+    });
+  }
+  return null;
+};
+
+
+/**
+ * Gets random IPv6 Address from a block
+ *
+ * @param {string} ip the IPv6 block in CIDR-Notation
+ * @returns {string}
+ */
+exports.getRandomIPv6 = ip => {
+  // Start with a fast Regex-Check
+  if (!isIPv6(ip)) throw Error('Invalid IPv6 format');
+  // Start by splitting and normalizing addr and mask
+  const [rawAddr, rawMask] = ip.split('/');
+  let base10Mask = parseInt(rawMask);
+  if (!base10Mask || base10Mask > 128 || base10Mask < 24) throw Error('Invalid IPv6 subnet');
+  const base10addr = normalizeIP(rawAddr);
+  // Get random addr to pad with
+  // using Math.random since we're not requiring high level of randomness
+  const randomAddr = new Array(8).fill(1).map(() => Math.floor(Math.random() * 0xffff));
+
+  // Merge base10addr with randomAddr
+  const mergedAddr = randomAddr.map((randomItem, idx) => {
+    // Calculate the amount of static bits
+    const staticBits = Math.min(base10Mask, 16);
+    // Adjust the bitmask with the staticBits
+    base10Mask -= staticBits;
+    // Calculate the bitmask
+    // lsb makes the calculation way more complicated
+    const mask = 0xffff - ((2 ** (16 - staticBits)) - 1);
+    // Combine base10addr and random
+    return (base10addr[idx] & mask) + (randomItem & (mask ^ 0xffff));
+  });
+  // Return new addr
+  return mergedAddr.map(x => x.toString('16')).join(':');
+};
+
+
+// eslint-disable-next-line max-len
+const IPV6_REGEX = /^(([0-9a-f]{1,4}:)(:[0-9a-f]{1,4}){1,6}|([0-9a-f]{1,4}:){1,2}(:[0-9a-f]{1,4}){1,5}|([0-9a-f]{1,4}:){1,3}(:[0-9a-f]{1,4}){1,4}|([0-9a-f]{1,4}:){1,4}(:[0-9a-f]{1,4}){1,3}|([0-9a-f]{1,4}:){1,5}(:[0-9a-f]{1,4}){1,2}|([0-9a-f]{1,4}:){1,6}(:[0-9a-f]{1,4})|([0-9a-f]{1,4}:){1,7}(([0-9a-f]{1,4})|:))\/(1[0-1]\d|12[0-8]|\d{1,2})$/;
+/**
+ * Quick check for a valid IPv6
+ * The Regex only accepts a subset of all IPv6 Addresses
+ *
+ * @param {string} ip the IPv6 block in CIDR-Notation to test
+ * @returns {boolean} true if valid
+ */
+const isIPv6 = exports.isIPv6 = ip => IPV6_REGEX.test(ip);
+
+
+/**
+ * Normalise an IP Address
+ *
+ * @param {string} ip the IPv6 Addr
+ * @returns {number[]} the 8 parts of the IPv6 as Integers
+ */
+const normalizeIP = exports.normalizeIP = ip => {
+  // Split by fill position
+  const parts = ip.split('::').map(x => x.split(':'));
+  // Normalize start and end
+  const partStart = parts[0] || [];
+  const partEnd = parts[1] || [];
+  partEnd.reverse();
+  // Placeholder for full ip
+  const fullIP = new Array(8).fill(0);
+  // Fill in start and end parts
+  for (let i = 0; i < Math.min(partStart.length, 8); i++) {
+    fullIP[i] = parseInt(partStart[i], 16) || 0;
+  }
+  for (let i = 0; i < Math.min(partEnd.length, 8); i++) {
+    fullIP[7 - i] = parseInt(partEnd[i], 16) || 0;
+  }
+  return fullIP;
+};