☰

YouTube Links

Download YouTube videos. Video formats are listed at the top of the watch page. Video links are tagged so that they can be downloaded easily.

当前为 2020-08-05 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name           YouTube Links
  3. // @namespace      http://www.smallapple.net/labs/YouTubeLinks/
  4. // @description    Download YouTube videos. Video formats are listed at the top of the watch page. Video links are tagged so that they can be downloaded easily.
  5. // @author         Ng Hun Yang
  6. // @include        http://*.youtube.com/*
  7. // @include        http://youtube.com/*
  8. // @include        https://*.youtube.com/*
  9. // @include        https://youtube.com/*
  10. // @match          *://*.youtube.com/*
  11. // @match          *://*.googlevideo.com/*
  12. // @match          *://s.ytimg.com/yts/jsbin/*
  13. // @grant          GM_xmlhttpRequest
  14. // @grant          GM.xmlHttpRequest
  15. // @connect        googlevideo.com
  16. // @connect        s.ytimg.com
  17. // @version        2.20
  18. // ==/UserScript==
  19.  
  20. /* This is based on YouTube HD Suite 3.4.1 */
  21.  
  22. /* Tested on Firefox 5.0, Chrome 13 and Opera 11.50 */
  23.  
  24. (function() {
  25.  
  26. // =============================================================================
  27.  
  28. var win = typeof(unsafeWindow) !== "undefined" ? unsafeWindow : window;
  29. var doc = win.document;
  30. var loc = win.location;
  31.  
  32. if(win.top != win.self)
  33.   return;
  34.  
  35. var unsafeWin = win;
  36.  
  37. // Hack to get unsafe window in Chrome
  38. (function() {
  39.  
  40. var isChrome = navigator.userAgent.toLowerCase().indexOf("chrome") >= 0;
  41.  
  42. if(!isChrome)
  43.   return;
  44.  
  45. // Chrome 27 fixed this exploit, but luckily, its unsafeWin now works for us
  46. try {
  47.   var div = doc.createElement("div");
  48.   div.setAttribute("onclick", "return window;");
  49.   unsafeWin = div.onclick();
  50. } catch(e) {
  51.   }
  52.  
  53. }) ();
  54.  
  55. var ua = navigator.userAgent || "";
  56. var isEdgeBrowser = ua.match(/ Edge\//);
  57.  
  58. // =============================================================================
  59.  
  60. if(typeof GM == "object" && GM.xmlHttpRequest && typeof GM_xmlhttpRequest == "undefined") {
  61.   GM_xmlhttpRequest = async function(opts) {
  62.     await GM.xmlHttpRequest(opts);
  63.     }
  64.   }
  65.  
  66. // =============================================================================
  67.  
  68. var SCRIPT_NAME = "YouTube Links";
  69.  
  70. var relInfo = {
  71.   ver: 22000,
  72.   ts: 2020080500,
  73.   desc: "Fixed stale links on page change"
  74.   };
  75.  
  76. var SCRIPT_UPDATE_LINK = loc.protocol + "//greasyfork.org/scripts/5565-youtube-links-updater/code/YouTube Links Updater.user.js";
  77. var SCRIPT_LINK = loc.protocol + "//greasyfork.org/scripts/5566-youtube-links/code/YouTube Links.user.js";
  78.  
  79. // =============================================================================
  80.  
  81. var dom = {};
  82.  
  83. dom.gE = function(id) {
  84.   return doc.getElementById(id);
  85.   };
  86.  
  87. dom.gT = function(dom, tag) {
  88.   if(arguments.length == 1) {
  89.     tag = dom;
  90.     dom = doc;
  91.     }
  92.  
  93.   return dom.getElementsByTagName(tag);
  94.   };
  95.  
  96. dom.cE = function(tag) {
  97.   return document.createElement(tag);
  98.   };
  99.  
  100. dom.cT = function(s) {
  101.   return doc.createTextNode(s);
  102.   };
  103.  
  104. dom.attr = function(obj, k, v) {
  105.   if(arguments.length == 2)
  106.     return obj.getAttribute(k);
  107.  
  108.   obj.setAttribute(k, v);
  109.   };
  110.  
  111. dom.prepend = function(obj, child) {
  112.   obj.insertBefore(child, obj.firstChild);
  113.   };
  114.  
  115. dom.append = function(obj, child) {
  116.   obj.appendChild(child);
  117.   };
  118.  
  119. dom.offset = function(obj) {
  120.   var x = 0;
  121.   var y = 0;
  122.  
  123.   if(obj.getBoundingClientRect) {
  124.     var box = obj.getBoundingClientRect();
  125.     var owner = obj.ownerDocument;
  126.  
  127.     x = box.left + Math.max(owner.documentElement.scrollLeft, owner.body.scrollLeft) - owner.documentElement.clientLeft;
  128.     y = box.top + Math.max(owner.documentElement.scrollTop, owner.body.scrollTop) - owner.documentElement.clientTop;
  129.  
  130.     return { left: x, top: y };
  131.     }
  132.  
  133.   if(obj.offsetParent) {
  134.     do {
  135.       x += obj.offsetLeft - obj.scrollLeft;
  136.       y += obj.offsetTop - obj.scrollTop;
  137.       obj = obj.offsetParent;
  138.     } while(obj);
  139.     }
  140.  
  141.   return { left: x, top: y };
  142.   };
  143.  
  144. dom.inViewport = function(el) {
  145.   var rect = el.getBoundingClientRect();
  146.  
  147.   return rect.bottom >= 0 &&
  148.    rect.right >= 0 &&
  149.    rect.top < (win.innerHeight || doc.documentElement.clientHeight) &&
  150.    rect.left < (win.innerWidth || doc.documentElement.clientWidth);
  151.   };
  152.  
  153. dom.html = function(obj, s) {
  154.   if(arguments.length == 1)
  155.     return obj.innerHTML;
  156.  
  157.   obj.innerHTML = s;
  158.   };
  159.  
  160. dom.emitHtml = function(tag, attrs, body) {
  161.   if(arguments.length == 2) {
  162.     if(typeof(attrs) == "string") {
  163.       body = attrs;
  164.       attrs = {};
  165.       }
  166.     }
  167.  
  168.   var list = [];
  169.  
  170.   for(var k in attrs) {
  171.     if(attrs[k] != null)
  172.       list.push(k + "='" + attrs[k].replace(/'/g, "&#39;") + "'");
  173.     }
  174.  
  175.   var s = "<" + tag + " " + list.join(" ") + ">";
  176.  
  177.   if(body != null)
  178.     s += body + "</" + tag + ">";
  179.  
  180.   return s;
  181.   };
  182.  
  183. dom.emitCssStyles = function(styles) {
  184.   var list = [];
  185.  
  186.   for(var k in styles) {
  187.     list.push(k + ": " + styles[k] + ";");
  188.     }
  189.  
  190.   return " { " + list.join(" ") + " }";
  191.   };
  192.  
  193. dom.ajax = function(opts) {
  194.   function newXhr() {
  195.     if(window.ActiveXObject) {
  196.       try {
  197.         return new ActiveXObject("Msxml2.XMLHTTP");
  198.         } catch(e) {
  199.           }
  200.  
  201.       try {
  202.         return new ActiveXObject("Microsoft.XMLHTTP");
  203.         } catch(e) {
  204.           return null;
  205.           }
  206.       }
  207.  
  208.     if(window.XMLHttpRequest)
  209.       return new XMLHttpRequest();
  210.  
  211.     return null;
  212.     }
  213.  
  214.   function nop() {
  215.     }
  216.  
  217.   // Entry point
  218.   var xhr = newXhr();
  219.  
  220.   opts = addProp({
  221.     type: "GET",
  222.     async: true,
  223.     success: nop,
  224.     error: nop,
  225.     complete: nop
  226.     }, opts);
  227.  
  228.   xhr.open(opts.type, opts.url, opts.async);
  229.  
  230.   xhr.onreadystatechange = function() {
  231.     if(xhr.readyState == 4) {
  232.       var status = +xhr.status;
  233.  
  234.       if(status >= 200 && status < 300) {
  235.         opts.success(xhr.responseText, "success", xhr);
  236.         }
  237.       else {
  238.         opts.error(xhr, "error");
  239.         }
  240.  
  241.       opts.complete(xhr);
  242.       }
  243.     };
  244.  
  245.   xhr.send("");
  246.   };
  247.  
  248. dom.crossAjax = function(opts) {
  249.   function wrapXhr(xhr) {
  250.     var headers = xhr.responseHeaders.replace("\r", "").split("\n");
  251.  
  252.     var obj = {};
  253.  
  254.     forEach(headers, function(idx, elm) {
  255.       var nv = elm.split(":");
  256.       if(nv[1] != null)
  257.         obj[nv[0].toLowerCase()] = nv[1].replace(/^\s+/, "").replace(/\s+$/, "");
  258.       });
  259.  
  260.     var responseXML = null;
  261.  
  262.     if(opts.dataType == "xml")
  263.       responseXML = new DOMParser().parseFromString(xhr.responseText, "text/xml");
  264.  
  265.     return {
  266.       responseText: xhr.responseText,
  267.       responseXML: responseXML,
  268.       status: xhr.status,
  269.  
  270.       getAllResponseHeaders: function() {
  271.         return xhr.responseHeaders;
  272.         },
  273.  
  274.       getResponseHeader: function(name) {
  275.         return obj[name.toLowerCase()];
  276.         }
  277.       };
  278.     }
  279.  
  280.   function nop() {
  281.     }
  282.  
  283.   // Entry point
  284.   opts = addProp({
  285.     type: "GET",
  286.     async: true,
  287.     success: nop,
  288.     error: nop,
  289.     complete: nop
  290.     }, opts);
  291.  
  292.   if(typeof GM_xmlhttpRequest === "undefined") {
  293.     setTimeout(function() {
  294.       var xhr = {};
  295.       opts.error(xhr, "error");
  296.       opts.complete(xhr);
  297.       }, 0);
  298.     return;
  299.     }
  300.  
  301.   // TamperMonkey does not handle URLs starting with //
  302.   var url;
  303.  
  304.   if(opts.url.match(/^\/\//))
  305.     url = loc.protocol + opts.url;
  306.   else
  307.     url = opts.url;
  308.  
  309.   GM_xmlhttpRequest({
  310.     method: opts.type,
  311.     url: url,
  312.     synchronous: !opts.async,
  313.  
  314.     onload: function(xhr) {
  315.       xhr = wrapXhr(xhr);
  316.  
  317.       if(xhr.status >= 200 && xhr.status < 300)
  318.         opts.success(xhr.responseXML || xhr.responseText, "success", xhr);
  319.       else
  320.         opts.error(xhr, "error");
  321.  
  322.       opts.complete(xhr);
  323.       },
  324.  
  325.     onerror: function(xhr) {
  326.       xhr = wrapXhr(xhr);
  327.       opts.error(xhr, "error");
  328.       opts.complete(xhr);
  329.       }
  330.     });
  331.   };
  332.  
  333. dom.addEvent = function(e, type, fn) {
  334.   function mouseEvent(evt) {
  335.     if(this != evt.relatedTarget && !dom.isAChildOf(this, evt.relatedTarget))
  336.       fn.call(this, evt);
  337.     }
  338.  
  339.   // Entry point
  340.   if(e.addEventListener) {
  341.     var effFn = fn;
  342.  
  343.     if(type == "mouseenter") {
  344.       type = "mouseover";
  345.       effFn = mouseEvent;
  346.       }
  347.     else if(type == "mouseleave") {
  348.       type = "mouseout";
  349.       effFn = mouseEvent;
  350.       }
  351.  
  352.     e.addEventListener(type, effFn, /*capturePhase*/ false);
  353.     }
  354.   else
  355.     e.attachEvent("on" + type, function() { fn(win.event); });
  356.   };
  357.  
  358. dom.insertCss = function (styles) {
  359.   var ss = dom.cE("style");
  360.   dom.attr(ss, "type", "text/css");
  361.  
  362.   var hh = dom.gT("head") [0];
  363.   dom.append(hh, ss);
  364.   dom.append(ss, dom.cT(styles));
  365.   };
  366.  
  367. dom.isAChildOf = function(parent, child) {
  368.   if(parent === child)
  369.     return false;
  370.  
  371.   while(child && child !== parent) {
  372.     child = child.parentNode;
  373.     }
  374.  
  375.   return child === parent;
  376.   };
  377.  
  378. // -----------------------------------------------------------------------------
  379.  
  380. function timeNowInSec() {
  381.   return Math.round(+new Date() / 1000);
  382.   }
  383.  
  384. function forLoop(opts, fn) {
  385.   opts = addProp({ start: 0, inc: 1 }, opts);
  386.  
  387.   for(var idx = opts.start; idx < opts.num; idx += opts.inc) {
  388.     if(fn.call(opts, idx, opts) === false)
  389.       break;
  390.     }
  391.   }
  392.  
  393. function forEach(list, fn) {
  394.   forLoop({ num: list.length }, function(idx) {
  395.     return fn.call(list[idx], idx, list[idx]);
  396.     });
  397.   }
  398.  
  399. function addProp(dest, src) {
  400.   for(var k in src) {
  401.     if(src[k] != null)
  402.       dest[k] = src[k];
  403.     }
  404.  
  405.   return dest;
  406.   }
  407.  
  408. function inArray(elm, array) {
  409.   for(var i = 0; i < array.length; ++i) {
  410.     if(array[i] === elm)
  411.       return i;
  412.     }
  413.  
  414.   return -1;
  415.   }
  416.  
  417. function unescHtmlEntities(s) {
  418.   return s.replace(/&lt;/g, "<").replace(/&gt;/g, ">").replace(/&amp;/g, "&").replace(/&quot;/g, '"').replace(/&#39;/g, "'");
  419.   }
  420.  
  421. function logMsg(s) {
  422.   win.console.log(s);
  423.   }
  424.  
  425. function cnvSafeFname(s) {
  426.   return s.replace(/:/g, "-").replace(/"/g, "'").replace(/[\\/|*?]/g, "_");
  427.   }
  428.  
  429. function encodeSafeFname(s) {
  430.   return encodeURIComponent(cnvSafeFname(s)).replace(/'/g, "%27");
  431.   }
  432.  
  433. function getVideoName(s) {
  434.   var list = [
  435.     { name: "3GP", codec: "video\\/3gpp" },
  436.     { name: "FLV", codec: "video\\/x-flv" },
  437.     { name: "M4V", codec: "video\\/x-m4v" },
  438.     { name: "MP3", codec: "audio\\/mpeg" },
  439.     { name: "MP4", codec: "video\\/mp4" },
  440.     { name: "M4A", codec: "audio\\/mp4" },
  441.     { name: "QT", codec: "video\\/quicktime" },
  442.     { name: "WEBM", codec: "audio\\/webm" },
  443.     { name: "WEBM", codec: "video\\/webm" },
  444.     { name: "WMV", codec: "video\\/ms-wmv" }
  445.     ];
  446.  
  447.   var spCodecs = {
  448.     "av01": "AV1",
  449.     "opus": "OPUS",
  450.     "vorbis": "VOR",
  451.     "vp9": "VP9"
  452.     };
  453.  
  454.   if(s.match(/;\s*\+?codecs=\"([a-zA-Z0-9]+)/)) {
  455.     var str = RegExp.$1;
  456.     if(spCodecs[str])
  457.       return spCodecs[str];
  458.     }
  459.  
  460.   var name = "?";
  461.  
  462.   forEach(list, function(idx, elm) {
  463.     if(s.match("^" + elm.codec)) {
  464.       name = elm.name;
  465.       return false;
  466.       }
  467.     });
  468.  
  469.   return name;
  470.   }
  471.  
  472. function getAspectRatio(wd, ht) {
  473.   return Math.round(wd / ht * 100) / 100;
  474.   }
  475.  
  476. function cnvResName(res) {
  477.   var resMap = {
  478.     "audio": "Audio"
  479.     };
  480.  
  481.   if(resMap[res])
  482.     return resMap[res];
  483.  
  484.   if(!res.match(/^(\d+)x(\d+)/))
  485.     return res;
  486.  
  487.   var wd = +RegExp.$1;
  488.   var ht = +RegExp.$2;
  489.  
  490.   if(wd < ht) {
  491.     var t = wd;
  492.     wd = ht;
  493.     ht = t;
  494.     }
  495.  
  496.   var horzResAr = [
  497.     [ 16000, "16K" ],
  498.     [ 14000, "14K" ],
  499.     [ 12000, "12K" ],
  500.     [ 10000, "10K" ],
  501.     [ 8000, "8K" ],
  502.     [ 6000, "6K" ],
  503.     [ 5000, "5K" ],
  504.     [ 4000, "4K" ],
  505.     [ 3000, "3K" ],
  506.     [ 2048, "2K" ]
  507.     ];
  508.  
  509.   var vertResAr = [
  510.     [ 4320, "8K" ],
  511.     [ 3160, "6K" ],
  512.     [ 2880, "5K" ],
  513.     [ 2160, "4K" ],
  514.     [ 1728, "3K" ],
  515.     [ 1536, "2K" ],
  516.     [ 240, "240v" ],
  517.     [ 144, "144v" ]
  518.     ];
  519.  
  520.   var aspectRatio = getAspectRatio(wd, ht);
  521.   var name;
  522.  
  523.   do {
  524.     forEach(horzResAr, function(idx, elm) {
  525.       var tolerance = elm[0] * 0.05;
  526.       if(wd >= elm[0] * 0.95) {
  527.         name = elm[1];
  528.         return false;
  529.         }
  530.       });
  531.  
  532.     if(name)
  533.       break;
  534.  
  535.     if(aspectRatio >= WIDE_AR_CUTOFF)
  536.       ht = Math.round(wd * 9 / 16);
  537.  
  538.     forEach(vertResAr, function(idx, elm) {
  539.       var tolerance = elm[0] * 0.05;
  540.       if(ht >= elm[0] - tolerance && ht < elm[0] + tolerance) {
  541.         name = elm[1];
  542.         return false;
  543.         }
  544.       });
  545.  
  546.     if(name)
  547.       break;
  548.  
  549.     // Snap to std vert res
  550.     var vertResList = [ 4320, 3160, 2880, 2160, 1536, 1080, 720, 480, 360, 240, 144 ];
  551.  
  552.     forEach(vertResList, function(idx, elm) {
  553.       var tolerance = elm * 0.05;
  554.       if(ht >= elm - tolerance && ht < elm + tolerance) {
  555.         ht = elm;
  556.         return false;
  557.         }
  558.       });
  559.  
  560.     name = String(ht) + (aspectRatio < FULL_AR_CUTOFF ? "f" : "p");
  561.   } while(false);
  562.  
  563.   if(aspectRatio >= ULTRA_WIDE_AR_CUTOFF)
  564.     name = "u" + name;
  565.   else if(aspectRatio >= WIDE_AR_CUTOFF)
  566.     name = "w" + name;
  567.  
  568.   return name;
  569.   }
  570.  
  571. function mapResToQuality(res) {
  572.   if(!res.match(/^(\d+)x(\d+)/))
  573.     return res;
  574.  
  575.   var wd = +RegExp.$1;
  576.   var ht = +RegExp.$2;
  577.  
  578.   if(wd < ht) {
  579.     var t = wd;
  580.     wd = ht;
  581.     ht = t;
  582.     }
  583.  
  584.   var resList = [
  585.     { res: 3160, q : "ultrahighres" },
  586.     { res: 1536, q : "highres" },
  587.     { res: 1080, q: "hd1080" },
  588.     { res: 720, q : "hd720" },
  589.     { res: 480, q : "large" },
  590.     { res: 360, q : "medium" }
  591.     ];
  592.  
  593.   var q;
  594.  
  595.   forEach(resList, function(idx, elm) {
  596.     if(ht >= elm.res) {
  597.       q = elm.q;
  598.       return false;
  599.       }
  600.     });
  601.  
  602.   return q || "small";
  603.   }
  604.  
  605. function getQualityIdx(quality) {
  606.   var list = [ "small", "medium", "large", "hd720", "hd1080", "highres", "ultrahighres" ];
  607.  
  608.   for(var i = 0; i < list.length; ++i) {
  609.     if(list[i] == quality)
  610.       return i;
  611.     }
  612.  
  613.   return -1;
  614.   }
  615.  
  616. // =============================================================================
  617.  
  618. RegExp.escape = function(s) {
  619.   return String(s).replace(/([.*+?^=!:${}()|\[\]\/\\])/g, "\\$1");
  620.   };
  621.  
  622. var decryptSig = {
  623.   store: {}
  624.   };
  625.  
  626. (function () {
  627.  
  628. var SIG_STORE_ID = "ujsYtLinksSig";
  629.  
  630. var CHK_SIG_INTERVAL = 3 * 86400;
  631.  
  632. decryptSig.load = function() {
  633.   var obj = localStorage[SIG_STORE_ID];
  634.   if(obj == null)
  635.     return;
  636.  
  637.   decryptSig.store = JSON.parse(obj);
  638.   };
  639.  
  640. decryptSig.save = function() {
  641.   localStorage[SIG_STORE_ID] = JSON.stringify(decryptSig.store);
  642.   };
  643.  
  644. decryptSig.extractScriptUrl = function(data) {
  645.   if(data.match(/ytplayer.config\s*=.*\"assets"\s*:\s*{.*"js"\s*:\s*(".+?")/))
  646.     return JSON.parse(RegExp.$1);
  647.   else
  648.     return false;
  649.   };
  650.  
  651. decryptSig.getScriptName = function(url) {
  652.   if(url.match(/\/yts\/jsbin\/player-(.*)\/[a-zA-Z0-9_]+\.js$/))
  653.     return RegExp.$1;
  654.  
  655.   if(url.match(/\/yts\/jsbin\/html5player-(.*)\/html5player\.js$/))
  656.     return RegExp.$1;
  657.  
  658.   if(url.match(/\/html5player-(.*)\.js$/))
  659.     return RegExp.$1;
  660.  
  661.   return url;
  662.   };
  663.  
  664. decryptSig.fetchScript = function(scriptName, url) {
  665.   function success(data) {
  666.     data = data.replace(/\n|\r/g, "");
  667.  
  668.     var sigFn;
  669.  
  670.     forEach([
  671.       /\.signature\s*=\s*(\w+)\(\w+\)/,
  672.       /\.set\(\"signature\",([\w$]+)\(\w+\)\)/,
  673.       /\/yt\.akamaized\.net\/\)\s*\|\|\s*\w+\.set\s*\(.*?\)\s*;\s*\w+\s*&&\s*\w+\.set\s*\(\s*\w+\s*,\s*(?:encodeURIComponent\s*\()?([\w$]+)\s*\(/,
  674.       /\b([a-zA-Z0-9$]{2})\s*=\s*function\(\s*a\s*\)\s*{\s*a\s*=\s*a\.split\(\s*""\s*\)/,
  675.       /([a-zA-Z0-9$]+)\s*=\s*function\(\s*a\s*\)\s*{\s*a\s*=\s*a\.split\(\s*""\s*\)\s*;\s*\w+\.\w+\s*\(/,
  676.       /([a-zA-Z0-9$]+)\s*=\s*function\(\s*a\s*\)\s*{\s*a\s*=\s*a\.split\(\s*""\s*\)/,
  677.       /;\s*\w+\s*&&\s*\w+\.set\(\w+\s*,\s*(?:encodeURIComponent\s*\()?([\w$]+)\s*\(/,
  678.       /;\s*\w+\s*&&\s*\w+\.set\(\w+\s*,\s*\([^)]*\)\s*\(\s*([\w$]+)\s*\(/
  679.       ], function(idx, regex) {
  680.         if(data.match(regex)) {
  681.           sigFn = RegExp.$1;
  682.           return false;
  683.           }
  684.         });
  685.  
  686.     if(sigFn == null)
  687.       return;
  688.  
  689.     //console.log(scriptName + " sig fn: " + sigFn);
  690.  
  691.     var fnArgBody = '\\s*\\((\\w+)\\)\\s*{(\\w+=\\w+\\.split\\(""\\);.+?;return \\w+\\.join\\(""\\))';
  692.  
  693.     if(!data.match(new RegExp("function " + RegExp.escape(sigFn) + fnArgBody)) &&
  694.      !data.match(new RegExp("(?:var |[,;]\\s*|^\\s*)" + RegExp.escape(sigFn) + "\\s*=\\s*function" + fnArgBody)))
  695.       return;
  696.  
  697.     var fnParam = RegExp.$1;
  698.     var fnBody = RegExp.$2;
  699.  
  700.     var fnHlp = {};
  701.     var objHlp = {};
  702.  
  703.     //console.log("param: " + fnParam);
  704.     //console.log(fnBody);
  705.  
  706.     fnBody = fnBody.split(";");
  707.  
  708.     forEach(fnBody, function(idx, elm) {
  709.       // its own property
  710.       if(elm.match(new RegExp("^" + fnParam + "=" + fnParam + "\\.")))
  711.         return;
  712.  
  713.       // global fn
  714.       if(elm.match(new RegExp("^" + fnParam + "=([a-zA-Z_$][a-zA-Z0-9_$]*)\\("))) {
  715.         var name = RegExp.$1;
  716.         //console.log("fnHlp: " + name);
  717.  
  718.         if(fnHlp[name])
  719.           return;
  720.  
  721.         if(data.match(new RegExp("(function " + RegExp.escape(RegExp.$1) + ".+?;return \\w+})")))
  722.           fnHlp[name] = RegExp.$1;
  723.  
  724.         return;
  725.         }
  726.  
  727.       // object fn
  728.       if(elm.match(new RegExp("^([a-zA-Z_$][a-zA-Z0-9_$]*)\.([a-zA-Z_$][a-zA-Z0-9_$]*)\\("))) {
  729.         var name = RegExp.$1;
  730.         //console.log("objHlp: " + name);
  731.  
  732.         if(objHlp[name])
  733.           return;
  734.  
  735.         if(data.match(new RegExp("(var " + RegExp.escape(RegExp.$1) + "={.+?};)")))
  736.           objHlp[name] = RegExp.$1;
  737.  
  738.         return;
  739.         }
  740.       });
  741.  
  742.     //console.log(fnHlp);
  743.     //console.log(objHlp);
  744.  
  745.     var fnHlpStr = "";
  746.  
  747.     for(var k in fnHlp)
  748.       fnHlpStr += fnHlp[k];
  749.  
  750.     for(var k in objHlp)
  751.       fnHlpStr += objHlp[k];
  752.  
  753.     var fullFn = "function(" + fnParam + "){" + fnHlpStr + fnBody.join(";") + "}";
  754.     //console.log(fullFn);
  755.  
  756.     decryptSig.store[scriptName] = { ver: relInfo.ver, ts: timeNowInSec(), fn: fullFn };
  757.     //console.log(decryptSig);
  758.  
  759.     decryptSig.save();
  760.     }
  761.  
  762.   // Entry point
  763.   dom.crossAjax({ url: url, success: success });
  764.   };
  765.  
  766. decryptSig.condFetchScript = function(url) {
  767.   var scriptName = decryptSig.getScriptName(url);
  768.   var store = decryptSig.store[scriptName];
  769.   var now = timeNowInSec();
  770.  
  771.   if(store && now - store.ts < CHK_SIG_INTERVAL && store.ver == relInfo.ver)
  772.     return;
  773.  
  774.   decryptSig.fetchScript(scriptName, url);
  775.   };
  776.  
  777. }) ();
  778.  
  779. function deobfuscateVideoSig(scriptName, sig) {
  780.   if(!decryptSig.store[scriptName])
  781.     return sig;
  782.  
  783.   //console.log(decryptSig.store[scriptName].fn);
  784.  
  785.   try {
  786.     sig = eval("(" + decryptSig.store[scriptName].fn + ") (\"" + sig + "\")");
  787.   } catch(e) {
  788.     }
  789.  
  790.   return sig;
  791.   }
  792.  
  793. // =============================================================================
  794.  
  795. function deobfuscateSigInObj(map, obj) {
  796.   if(obj.s == null || obj.sig != null)
  797.     return;
  798.  
  799.   var sig = deobfuscateVideoSig(map.scriptName, obj.s);
  800.  
  801.   if(sig != obj.s) {
  802.     obj.sig = sig;
  803.     delete obj.s;
  804.     }
  805.   }
  806.  
  807. function parseStreamMap(map, value) {
  808.   var fmtUrlList = [];
  809.  
  810.   forEach(value.split(","), function(idx, elm) {
  811.     var elms = elm.replace(/\\\//g, "/").replace(/\\u0026/g, "&").split("&");
  812.     var obj = {};
  813.  
  814.     forEach(elms, function(idx, elm) {
  815.       var kv = elm.split("=");
  816.       obj[kv[0]] = decodeURIComponent(kv[1]);
  817.       });
  818.  
  819.     obj.itag = +obj.itag;
  820.  
  821.     if(obj.conn != null && obj.conn.match(/^rtmpe:\/\//))
  822.       obj.isDrm = true;
  823.  
  824.     if(obj.s != null && obj.sig == null) {
  825.       var sig = deobfuscateVideoSig(map.scriptName, obj.s);
  826.       if(sig != obj.s) {
  827.         obj.sig = sig;
  828.         delete obj.s;
  829.         }
  830.       }
  831.  
  832.     fmtUrlList.push(obj);
  833.     });
  834.  
  835.   //logMsg(fmtUrlList);
  836.  
  837.   map.fmtUrlList = fmtUrlList;
  838.   }
  839.  
  840. function parseAdaptiveStreamMap(map, value) {
  841.   var fmtUrlList = [];
  842.  
  843.   forEach(value.split(","), function(idx, elm) {
  844.     var elms = elm.replace(/\\\//g, "/").replace(/\\u0026/g, "&").split("&");
  845.     var obj = {};
  846.  
  847.     forEach(elms, function(idx, elm) {
  848.       var kv = elm.split("=");
  849.       obj[kv[0]] = decodeURIComponent(kv[1]);
  850.       });
  851.  
  852.     obj.itag = +obj.itag;
  853.  
  854.     if(obj.bitrate != null)
  855.       obj.bitrate = +obj.bitrate;
  856.  
  857.     if(obj.clen != null)
  858.       obj.clen = +obj.clen;
  859.  
  860.     if(obj.fps != null)
  861.       obj.fps = +obj.fps;
  862.  
  863.     //logMsg(obj);
  864.     //logMsg(map.videoId + ": " + obj.index + " " + obj.init + " " + obj.itag + " " + obj.size + " " + obj.bitrate + " " + obj.type);
  865.  
  866.     if(obj.type.match(/^video\/mp4/) && !obj.type.match(/;\s*\+?codecs="av01\./))
  867.       obj.effType = "video/x-m4v";
  868.  
  869.     if(obj.type.match(/^audio\//))
  870.       obj.size = "audio";
  871.  
  872.     obj.quality = mapResToQuality(obj.size);
  873.  
  874.     if(!map.adaptiveAR && obj.size.match(/^(\d+)x(\d+)/))
  875.       map.adaptiveAR = +RegExp.$1 / +RegExp.$2;
  876.  
  877.     deobfuscateSigInObj(map, obj);
  878.  
  879.     fmtUrlList.push(obj);
  880.  
  881.     map.fmtMap[obj.itag] = { res: cnvResName(obj.size) };
  882.     });
  883.  
  884.   //logMsg(fmtUrlList);
  885.  
  886.   map.fmtUrlList = map.fmtUrlList.concat(fmtUrlList);
  887.   }
  888.  
  889. function parseFmtList(map, value) {
  890.   var list = value.split(",");
  891.  
  892.   forEach(list, function(idx, elm) {
  893.     var elms = elm.replace(/\\\//g, "/").split("/");
  894.  
  895.     var fmtId = elms[0];
  896.     var res = elms[1];
  897.     elms.splice(/*idx*/ 0, /*rm*/ 2);
  898.  
  899.     if(map.adaptiveAR && res.match(/^(\d+)x(\d+)/))
  900.       res = Math.round(+RegExp.$2 * map.adaptiveAR) + "x" + RegExp.$2;
  901.  
  902.     map.fmtMap[fmtId] = { res: cnvResName(res), vars: elms };
  903.     });
  904.  
  905.   //logMsg(map.fmtMap);
  906.   }
  907.  
  908. function parseNewFormatsMap(map, str) {
  909.   var list = JSON.parse(str.replace(/\\\//g, "/").replace(/\\"/g, "\"").replace(/\\\\/g, "\\"));
  910.  
  911.   forEach(list, function(idx, elm) {
  912.     var obj = {
  913.       bitrate: elm.bitrate,
  914.       fps: elm.fps,
  915.       itag: elm.itag,
  916.       type: elm.mimeType,
  917.       url: elm.url // no longer present (2020-06)
  918.       };
  919.  
  920.     // Distinguish between AV1, M4V and MP4
  921.     if(elm.audioQuality == null && obj.type.match(/^video\/mp4/) && !obj.type.match(/;\s*\+?codecs="av01\./))
  922.       obj.effType = "video/x-m4v";
  923.  
  924.     if(elm.contentLength != null)
  925.       obj.clen = +elm.contentLength;
  926.  
  927.     if(obj.type.match(/^audio\//))
  928.       obj.size = "audio";
  929.     else
  930.       obj.size = elm.width + "x" + elm.height;
  931.  
  932.     obj.quality = mapResToQuality(obj.size);
  933.  
  934.     var cipher = elm.cipher || elm.signatureCipher;
  935.     if(cipher) {
  936.       forEach(cipher.split("&"), function(idx, elm) {
  937.         var kv = elm.split("=");
  938.         obj[kv[0]] = decodeURIComponent(kv[1]);
  939.         });
  940.  
  941.       deobfuscateSigInObj(map, obj);
  942.       }
  943.  
  944.     map.fmtUrlList.push(obj);
  945.  
  946.     if(map.fmtMap[obj.itag] == null)
  947.       map.fmtMap[obj.itag] = { res: cnvResName(obj.size) };
  948.     });
  949.   }
  950.  
  951. function getVideoInfo(url, callback) {
  952.   function getVideoNameByType(elm) {
  953.     return getVideoName(elm.effType || elm.type);
  954.     }
  955.  
  956.   function success(data) {
  957.     var map = {};
  958.  
  959.     if(data.match(/<div\s+id="verify-details">/)) {
  960.       logMsg("Skipping " + url);
  961.       return;
  962.       }
  963.  
  964.     if(data.match(/<h1\s+id="unavailable-message">/)) {
  965.       logMsg("Not avail " + url);
  966.       return;
  967.       }
  968.  
  969.     if(data.match(/"t":\s?"(.+?)"/))
  970.       map.t = RegExp.$1;
  971.  
  972.     if(data.match(/"(?:video_id|videoId)":\s?"(.+?)"/))
  973.       map.videoId = RegExp.$1;
  974.     else if(data.match(/\\"videoId\\":\s?\\"(.+?)\\"/))
  975.       map.videoId = RegExp.$1;
  976.     else if(data.match(/'VIDEO_ID':\s?"(.+?)",/))
  977.       map.videoId = RegExp.$1;
  978.  
  979.     if(!map.videoId) {
  980.       logMsg("No videoId; skipping " + url);
  981.       return;
  982.       }
  983.  
  984.     map.scriptUrl = decryptSig.extractScriptUrl(data);
  985.     if(map.scriptUrl) {
  986.       //logMsg(map.videoId + " script: " + map.scriptUrl);
  987.       map.scriptName = decryptSig.getScriptName(map.scriptUrl);
  988.       decryptSig.condFetchScript(map.scriptUrl);
  989.       }
  990.  
  991.     if(data.match(/<meta\s+itemprop="name"\s*content="(.+)"\s*>\s*\n/))
  992.       map.title = unescHtmlEntities(RegExp.$1);
  993.  
  994.     if(map.title == null && data.match(/<meta\s+name="title"\s*content="(.+)"\s*>/))
  995.       map.title = unescHtmlEntities(RegExp.$1);
  996.  
  997.     var titleStream;
  998.  
  999.     if(map.title == null && data.match(/"videoDetails":{(.*?)}[,}]/))
  1000.       titleStream = RegExp.$1;
  1001.     else
  1002.       titleStream = data;
  1003.  
  1004.     // Edge replaces & with \u0026
  1005.     if(map.title == null && titleStream.match(/[,{]"title":("[^"]+")[,}]/))
  1006.       map.title = unescHtmlEntities(JSON.parse(RegExp.$1));
  1007.  
  1008.     // Edge fails the previous regex if \" exists
  1009.     if(map.title == null && titleStream.match(/[,{]"title":(".*?")[,}]"/))
  1010.       map.title = unescHtmlEntities(JSON.parse(RegExp.$1));
  1011.  
  1012.     if(data.match(/[,{]\\"isLiveContent\\":\s*true[,}]/))
  1013.       map.isLive = true;
  1014.  
  1015.     map.fmtUrlList = [];
  1016.  
  1017.     var oldFmtFlag;
  1018.  
  1019.     if(data.match(/[,{]"url_encoded_fmt_stream_map":\s?"([^"]+)"[,}]/)) {
  1020.       parseStreamMap(map, RegExp.$1);
  1021.       oldFmtFlag = true;
  1022.       }
  1023.  
  1024.     map.fmtMap = {};
  1025.  
  1026.     if(data.match(/[,{]"adaptive_fmts":\s?"(.+?)"[,}]/)) {
  1027.       parseAdaptiveStreamMap(map, RegExp.$1);
  1028.       oldFmtFlag = true;
  1029.       }
  1030.  
  1031.     if(data.match(/[,{]"fmt_list":\s?"([^"]+)"[,}]/))
  1032.       parseFmtList(map, RegExp.$1);
  1033.  
  1034.     if(!oldFmtFlag && data.match(/\\"formats\\":(\[{[^\]]*}\])[},]/))
  1035.       parseNewFormatsMap(map, RegExp.$1);
  1036.  
  1037.     if(!oldFmtFlag && data.match(/\\"adaptiveFormats\\":(\[{[^\]]*}\])[},]/))
  1038.       parseNewFormatsMap(map, RegExp.$1);
  1039.  
  1040.     if(data.match(/[,{]"dashmpd":\s?"(.+?)"[,}]/))
  1041.       map.dashmpd = decodeURIComponent(RegExp.$1.replace(/\\\//g, "/"));
  1042.     else if(data.match(/[,{]\\"dashManifestUrl\\":\s?\\"(.+?)\\"[,}]/))
  1043.       map.dashmpd = decodeURIComponent(RegExp.$1.replace(/\\\//g, "/"));
  1044.  
  1045.     if(userConfig.filteredFormats.length > 0) {
  1046.       for(var i = 0; i < map.fmtUrlList.length; ++i) {
  1047.         if(inArray(getVideoNameByType(map.fmtUrlList[i]), userConfig.filteredFormats) >= 0) {
  1048.           map.fmtUrlList.splice(i, /*len*/ 1);
  1049.           --i;
  1050.           continue;
  1051.           }
  1052.         }
  1053.       }
  1054.  
  1055.     var hasHighRes = false;
  1056.     var hasHighAudio = false;
  1057.     var HIGH_AUDIO_BPS = 96 * 1024;
  1058.  
  1059.     forEach(map.fmtUrlList, function(idx, elm) {
  1060.       hasHighRes |= elm.quality == "hd720" || elm.quality == "hd1080";
  1061.  
  1062.       if(elm.quality == "audio")
  1063.         hasHighAudio |= elm.bitrate >= HIGH_AUDIO_BPS;
  1064.       });
  1065.  
  1066.     if(hasHighRes) {
  1067.       for(var i = 0; i < map.fmtUrlList.length; ++i) {
  1068.         if(inArray(getVideoNameByType(map.fmtUrlList[i]), userConfig.keepFormats) >= 0)
  1069.           continue;
  1070.  
  1071.         if(map.fmtUrlList[i].quality == "small") {
  1072.           map.fmtUrlList.splice(i, /*len*/ 1);
  1073.           --i;
  1074.           continue;
  1075.           }
  1076.         }
  1077.       }
  1078.  
  1079.     if(hasHighAudio) {
  1080.       for(var i = 0; i < map.fmtUrlList.length; ++i) {
  1081.         if(inArray(getVideoNameByType(map.fmtUrlList[i]), userConfig.keepFormats) >= 0)
  1082.           continue;
  1083.  
  1084.         if(map.fmtUrlList[i].quality == "audio" && map.fmtUrlList[i].bitrate < HIGH_AUDIO_BPS) {
  1085.           map.fmtUrlList.splice(i, /*len*/ 1);
  1086.           --i;
  1087.           continue;
  1088.           }
  1089.         }
  1090.       }
  1091.  
  1092.     map.fmtUrlList.sort(cmpUrlList);
  1093.  
  1094.     callback(map);
  1095.     }
  1096.  
  1097.   // Entry point
  1098.   dom.ajax({ url: url, success: success });
  1099.   }
  1100.  
  1101. function cmpUrlList(a, b) {
  1102.   var diff = getQualityIdx(b.quality) - getQualityIdx(a.quality);
  1103.   if(diff != 0)
  1104.     return diff;
  1105.  
  1106.   var aRes = (a.size || "").match(/^(\d+)x(\d+)/);
  1107.   var bRes = (b.size || "").match(/^(\d+)x(\d+)/);
  1108.  
  1109.   if(aRes == null) aRes = [ 0, 0, 0 ];
  1110.   if(bRes == null) bRes = [ 0, 0, 0 ];
  1111.  
  1112.   diff = +bRes[2] - +aRes[2];
  1113.   if(diff != 0)
  1114.     return diff;
  1115.  
  1116.   var aFps = a.fps || 0;
  1117.   var bFps = b.fps || 0;
  1118.  
  1119.   return bFps - aFps;
  1120.   }
  1121.  
  1122. // -----------------------------------------------------------------------------
  1123.  
  1124. var CSS_PREFIX = "ujs-";
  1125.  
  1126. var HDR_LINKS_HTML_ID = CSS_PREFIX + "hdr-links-div";
  1127. var LINKS_HTML_ID = CSS_PREFIX + "links-cls";
  1128. var LINKS_TP_HTML_ID = CSS_PREFIX + "links-tp-div";
  1129. var UPDATE_HTML_ID = CSS_PREFIX + "update-div";
  1130. var VID_FMT_BTN_ID = CSS_PREFIX + "vid-fmt-btn";
  1131.  
  1132. /* The !important attr is to override the page's specificity. */
  1133. var CSS_STYLES =
  1134.   "#" + VID_FMT_BTN_ID + dom.emitCssStyles({
  1135.     "cursor": "pointer",
  1136.     "margin": "0 0.333em",
  1137.     "padding": "0.5em"
  1138.     }) + "\n" +
  1139.   "#" + UPDATE_HTML_ID + dom.emitCssStyles({
  1140.     "background-color": "#f00",
  1141.     "border-radius": "2px",
  1142.     "color": "#fff",
  1143.     "padding": "5px",
  1144.     "text-align": "center",
  1145.     "text-decoration": "none",
  1146.     "position": "fixed",
  1147.     "top": "0.5em",
  1148.     "right": "0.5em",
  1149.     "z-index": "1000"
  1150.     }) + "\n" +
  1151.   "#" + UPDATE_HTML_ID + ":hover" + dom.emitCssStyles({
  1152.     "background-color": "#0d0"
  1153.     }) + "\n" +
  1154.   "#page-container #" + HDR_LINKS_HTML_ID + dom.emitCssStyles({
  1155.     "font-size": "90%"
  1156.     }) + "\n" +
  1157.   "#page-manager #" + HDR_LINKS_HTML_ID + dom.emitCssStyles({ // 2017 Material Design
  1158.     "font-size": "1.2em"
  1159.     }) + "\n" +
  1160.   "#" + HDR_LINKS_HTML_ID + dom.emitCssStyles({
  1161.     "background-color": "#f8f8f8",
  1162.     "border": "#eee 1px solid",
  1163.     //"border-radius": "3px",
  1164.     "color": "#333",
  1165.     "margin": "5px",
  1166.     "padding": "5px"
  1167.     }) + "\n" +
  1168.   "html[dark] #" + HDR_LINKS_HTML_ID + dom.emitCssStyles({
  1169.     "background-color": "#222",
  1170.     "border": "none"
  1171.     }) + "\n" +
  1172.   "#" + HDR_LINKS_HTML_ID + " ." + CSS_PREFIX + "group" + dom.emitCssStyles({
  1173.     "background-color": "#fff",
  1174.     "color": "#000 !important",
  1175.     "border": "#ccc 1px solid",
  1176.     "border-radius": "3px",
  1177.     "display": "inline-block",
  1178.     "margin": "3px",
  1179.     }) + "\n" +
  1180.   "html[dark] #" + HDR_LINKS_HTML_ID + " ." + CSS_PREFIX + "group" + dom.emitCssStyles({
  1181.     "background-color": "#444",
  1182.     "color": "#fff !important",
  1183.     "border": "none"
  1184.     }) + "\n" +
  1185.   "#" + HDR_LINKS_HTML_ID + " a" + dom.emitCssStyles({
  1186.     "display": "table-cell",
  1187.     "padding": "3px",
  1188.     "text-decoration": "none"
  1189.     }) + "\n" +
  1190.   "#" + HDR_LINKS_HTML_ID + " a:hover" + dom.emitCssStyles({
  1191.     "background-color": "#d1e1fa"
  1192.     }) + "\n" +
  1193.   "div." + LINKS_HTML_ID + dom.emitCssStyles({
  1194.     "border-radius": "3px",
  1195.     "cursor": "default",
  1196.     "line-height": "1em",
  1197.     "position": "absolute",
  1198.     "left": "0",
  1199.     "top": "0",
  1200.     "z-index": "1000"
  1201.     }) + "\n" +
  1202.   "#page-manager div." + LINKS_HTML_ID + dom.emitCssStyles({ // 2017 Material Design
  1203.     "font-size": "1.2em",
  1204.     "padding": "2px 4px"
  1205.     }) + "\n" +
  1206.   "div." + LINKS_HTML_ID + ".layout2017" + dom.emitCssStyles({ // 2017 Material Design
  1207.     "font-size": "1.2em"
  1208.     }) + "\n" +
  1209.   "#" + LINKS_TP_HTML_ID + dom.emitCssStyles({
  1210.     "background-color": "#f0f0f0",
  1211.     "border": "#aaa 1px solid",
  1212.     "padding": "3px 0",
  1213.     "text-decoration": "none",
  1214.     "white-space": "nowrap",
  1215.     "z-index": "1100"
  1216.     }) + "\n" +
  1217.   "html[dark] #" + LINKS_TP_HTML_ID + dom.emitCssStyles({
  1218.     "background-color": "#222"
  1219.     }) + "\n" +
  1220.   "div." + LINKS_HTML_ID + " a" + dom.emitCssStyles({
  1221.     "display": "inline-block",
  1222.     "margin": "1px",
  1223.     "text-decoration": "none"
  1224.     }) + "\n" +
  1225.   "div." + LINKS_HTML_ID + " ." + CSS_PREFIX + "video" + dom.emitCssStyles({
  1226.     "display": "inline-block",
  1227.     "text-align": "center",
  1228.     "width": "3.5em"
  1229.     }) + "\n" +
  1230.   "div." + LINKS_HTML_ID + " ." + CSS_PREFIX + "quality" + dom.emitCssStyles({
  1231.     "display": "inline-block",
  1232.     "text-align": "center",
  1233.     "width": "5.5em"
  1234.     }) + "\n" +
  1235.   "." + CSS_PREFIX + "video" + dom.emitCssStyles({
  1236.     "color": "#fff !important",
  1237.     "padding": "1px 3px",
  1238.     "text-align": "center"
  1239.     }) + "\n" +
  1240.   "." + CSS_PREFIX + "quality" + dom.emitCssStyles({
  1241.     "color": "#000 !important",
  1242.     "display": "table-cell",
  1243.     "min-width": "1.5em",
  1244.     "padding": "1px 3px",
  1245.     "text-align": "center",
  1246.     "vertical-align": "middle"
  1247.     }) + "\n" +
  1248.   "html[dark] ." + CSS_PREFIX + "quality" + dom.emitCssStyles({
  1249.     "color": "#fff !important"
  1250.     }) + "\n" +
  1251.   "." + CSS_PREFIX + "filesize" + dom.emitCssStyles({
  1252.     "font-size": "90%",
  1253.     "margin-top": "2px",
  1254.     "padding": "1px 3px",
  1255.     "text-align": "center"
  1256.     }) + "\n" +
  1257.   "html[dark] ." + CSS_PREFIX + "filesize" + dom.emitCssStyles({
  1258.     "color": "#999"
  1259.     }) + "\n" +
  1260.   "." + CSS_PREFIX + "filesize-err" + dom.emitCssStyles({
  1261.     "color": "#f00",
  1262.     "font-size": "90%",
  1263.     "margin-top": "2px",
  1264.     "padding": "1px 3px",
  1265.     "text-align": "center"
  1266.     }) + "\n" +
  1267.   "." + CSS_PREFIX + "not-avail" + dom.emitCssStyles({
  1268.     "background-color": "#700",
  1269.     "color": "#fff",
  1270.     "padding": "3px",
  1271.     }) + "\n" +
  1272.   "." + CSS_PREFIX + "3gp" + dom.emitCssStyles({
  1273.     "background-color": "#bbb"
  1274.     }) + "\n" +
  1275.   "." + CSS_PREFIX + "av1" + dom.emitCssStyles({
  1276.     "background-color": "#f5f"
  1277.     }) + "\n" +
  1278.   "." + CSS_PREFIX + "flv" + dom.emitCssStyles({
  1279.     "background-color": "#0dd"
  1280.     }) + "\n" +
  1281.   "." + CSS_PREFIX + "m4a" + dom.emitCssStyles({
  1282.     "background-color": "#07e"
  1283.     }) + "\n" +
  1284.   "." + CSS_PREFIX + "m4v" + dom.emitCssStyles({
  1285.     "background-color": "#07e"
  1286.     }) + "\n" +
  1287.   "." + CSS_PREFIX + "mp3" + dom.emitCssStyles({
  1288.     "background-color": "#7ba"
  1289.     }) + "\n" +
  1290.   "." + CSS_PREFIX + "mp4" + dom.emitCssStyles({
  1291.     "background-color": "#777"
  1292.     }) + "\n" +
  1293.   "." + CSS_PREFIX + "opus" + dom.emitCssStyles({
  1294.     "background-color": "#e0e"
  1295.     }) + "\n" +
  1296.   "." + CSS_PREFIX + "qt" + dom.emitCssStyles({
  1297.     "background-color": "#f08"
  1298.     }) + "\n" +
  1299.   "." + CSS_PREFIX + "vor" + dom.emitCssStyles({
  1300.     "background-color": "#e0e"
  1301.     }) + "\n" +
  1302.   "." + CSS_PREFIX + "vp9" + dom.emitCssStyles({
  1303.     "background-color": "#e0e"
  1304.     }) + "\n" +
  1305.   "." + CSS_PREFIX + "webm" + dom.emitCssStyles({
  1306.     "background-color": "#d4d"
  1307.     }) + "\n" +
  1308.   "." + CSS_PREFIX + "wmv" + dom.emitCssStyles({
  1309.     "background-color": "#c75"
  1310.     }) + "\n" +
  1311.   "." + CSS_PREFIX + "small" + dom.emitCssStyles({
  1312.     "color": "#888 !important",
  1313.     }) + "\n" +
  1314.   "." + CSS_PREFIX + "medium" + dom.emitCssStyles({
  1315.     "color": "#fff !important",
  1316.     "background-color": "#0d0"
  1317.     }) + "\n" +
  1318.   "." + CSS_PREFIX + "large" + dom.emitCssStyles({
  1319.     "color": "#fff !important",
  1320.     "background-color": "#00d",
  1321.     "background-image": "linear-gradient(to right, #00d, #00a)"
  1322.     }) + "\n" +
  1323.   "." + CSS_PREFIX + "hd720" + dom.emitCssStyles({
  1324.     "color": "#fff !important",
  1325.     "background-color": "#f90",
  1326.     "background-image": "linear-gradient(to right, #f90, #d70)"
  1327.     }) + "\n" +
  1328.   "." + CSS_PREFIX + "hd1080" + dom.emitCssStyles({
  1329.     "color": "#fff !important",
  1330.     "background-color": "#f00",
  1331.     "background-image": "linear-gradient(to right, #f00, #c00)"
  1332.     }) + "\n" +
  1333.   "." + CSS_PREFIX + "highres" + dom.emitCssStyles({
  1334.     "color": "#fff !important",
  1335.     "background-color": "#c0f",
  1336.     "background-image": "linear-gradient(to right, #c0f, #90f)"
  1337.     }) + "\n" +
  1338.   "." + CSS_PREFIX + "ultrahighres" + dom.emitCssStyles({
  1339.     "color": "#fff !important",
  1340.     "background-color": "#ffe42b",
  1341.     "background-image": "linear-gradient(to right, #ffe42b, #dfb200)"
  1342.     }) + "\n" +
  1343.   "." + CSS_PREFIX + "pos-rel" + dom.emitCssStyles({
  1344.     "position": "relative"
  1345.     }) + "\n" +
  1346.   "#" + HDR_LINKS_HTML_ID + " a.flash:hover" + dom.emitCssStyles({
  1347.     "background-color": "#ffa",
  1348.     "transition": "background-color 0.25s linear"
  1349.     }) + "\n" +
  1350.   "#" + HDR_LINKS_HTML_ID + " a.flash-out:hover" + dom.emitCssStyles({
  1351.     "transition": "background-color 0.25s linear"
  1352.     }) + "\n" +
  1353.   "div." + LINKS_HTML_ID + " a.flash div" + dom.emitCssStyles({
  1354.     "background-color": "#ffa",
  1355.     "transition": "background-color 0.25s linear"
  1356.     }) + "\n" +
  1357.   "div." + LINKS_HTML_ID + " a.flash-out div" + dom.emitCssStyles({
  1358.     "transition": "background-color 0.25s linear"
  1359.     }) + "\n" +
  1360.   "";
  1361.  
  1362. function condInsertHdr(divId) {
  1363.   if(dom.gE(HDR_LINKS_HTML_ID))
  1364.     return true;
  1365.  
  1366.   var insertPtNode = dom.gE(divId);
  1367.   if(!insertPtNode)
  1368.     return false;
  1369.  
  1370.   var divNode = dom.cE("div");
  1371.   divNode.id = HDR_LINKS_HTML_ID;
  1372.  
  1373.   insertPtNode.parentNode.insertBefore(divNode, insertPtNode);
  1374.   return true;
  1375.   }
  1376.  
  1377. function condRemoveHdr() {
  1378.   var node = dom.gE(HDR_LINKS_HTML_ID);
  1379.  
  1380.   if(node)
  1381.     node.parentNode.removeChild(node);
  1382.   }
  1383.  
  1384. function condInsertTooltip() {
  1385.   if(dom.gE(LINKS_TP_HTML_ID))
  1386.     return true;
  1387.  
  1388.   var toolTipNode = dom.cE("div");
  1389.   toolTipNode.id = LINKS_TP_HTML_ID;
  1390.  
  1391.   var cls = [ LINKS_HTML_ID ];
  1392.  
  1393.   if(dom.gE("page-manager"))
  1394.     cls.push("layout2017");
  1395.  
  1396.   dom.attr(toolTipNode, "class", cls.join(" "));
  1397.   dom.attr(toolTipNode, "style", "display: none;");
  1398.  
  1399.   dom.append(doc.body, toolTipNode);
  1400.  
  1401.   dom.addEvent(toolTipNode, "mouseleave", function(evt) {
  1402.     //logMsg("mouse leave");
  1403.     dom.attr(toolTipNode, "style", "display: none;");
  1404.     stopChkMouseInPopup();
  1405.     });
  1406.   }
  1407.  
  1408. function condInsertUpdateIcon() {
  1409.   if(dom.gE(UPDATE_HTML_ID))
  1410.     return;
  1411.  
  1412.   var divNode = dom.cE("a");
  1413.   divNode.id = UPDATE_HTML_ID;
  1414.   dom.append(doc.body, divNode);
  1415.   }
  1416.  
  1417. // -----------------------------------------------------------------------------
  1418.  
  1419. var STORE_ID = "ujsYtLinks";
  1420. var JSONP_ID = "ujsYtLinks";
  1421.  
  1422. // User settings can be saved in localStorage. Refer to documentation for details.
  1423. var userConfig = {
  1424.   copyToClipboard: !isEdgeBrowser,
  1425.   filteredFormats: [],
  1426.   keepFormats: [],
  1427.   showVideoFormats: true,
  1428.   showVideoSize: true,
  1429.   tagLinks: true
  1430.   };
  1431.  
  1432. var videoInfoCache = {};
  1433.  
  1434. var TAG_LINK_NUM_PER_BATCH = 5;
  1435. var INI_TAG_LINK_DELAY_MS = 200;
  1436. var SUB_TAG_LINK_DELAY_MS = 500;
  1437.  
  1438. // -----------------------------------------------------------------------------
  1439.  
  1440. var FULL_AR_CUTOFF = 1.5;
  1441. var WIDE_AR_CUTOFF = 2.0;
  1442. var ULTRA_WIDE_AR_CUTOFF = 2.3;
  1443.  
  1444. var HFR_CUTOFF = 45;
  1445.  
  1446. function Links() {
  1447.   }
  1448.  
  1449. Links.prototype.init = function() {
  1450.   for(var k in userConfig) {
  1451.     try {
  1452.       var v = localStorage.getItem(STORE_ID + ".cfg." + k);
  1453.       if(v != null)
  1454.         userConfig[k] = JSON.parse(v);
  1455.     } catch(e) {
  1456.       logMsg(k + ": unable to parse '" + v + "'");
  1457.       }
  1458.     }
  1459.   };
  1460.  
  1461. Links.prototype.getPreferredFmt = function(map) {
  1462.   var selElm = map.fmtUrlList[0];
  1463.  
  1464.   forEach(map.fmtUrlList, function(idx, elm) {
  1465.     if(getVideoName(elm.type).toLowerCase() != "webm") {
  1466.       selElm = elm;
  1467.       return false;
  1468.       }
  1469.     });
  1470.  
  1471.   return selElm;
  1472.   };
  1473.  
  1474. Links.prototype.parseDashManifest = function(map, callback) {
  1475.   function parse(xml) {
  1476.     //logMsg(xml);
  1477.  
  1478.     var dashList = [];
  1479.  
  1480.     var adaptationSetDom = xml.getElementsByTagName("AdaptationSet");
  1481.     //logMsg(adaptationSetDom);
  1482.  
  1483.     forEach(adaptationSetDom, function(i, adaptationElm) {
  1484.       var mimeType = adaptationElm.getAttribute("mimeType");
  1485.       //logMsg(i + " " + mimeType);
  1486.  
  1487.       var representationDom = adaptationElm.getElementsByTagName("Representation");
  1488.       forEach(representationDom, function(j, repElm) {
  1489.         var dashElm = { mimeType: mimeType };
  1490.  
  1491.         forEach([ "codecs" ], function(idx, elm) {
  1492.           var v = repElm.getAttribute(elm);
  1493.           if(v != null)
  1494.             dashElm[elm] = v;
  1495.           });
  1496.  
  1497.         forEach([ "audioSamplingRate", "bandwidth", "frameRate", "height", "id", "width" ], function(idx, elm) {
  1498.           var v = repElm.getAttribute(elm);
  1499.           if(v != null)
  1500.             dashElm[elm] = +v;
  1501.           });
  1502.  
  1503.         var baseUrlDom = repElm.getElementsByTagName("BaseURL");
  1504.         dashElm.len = +baseUrlDom[0].getAttribute("yt:contentLength");
  1505.         dashElm.url = baseUrlDom[0].textContent;
  1506.  
  1507.         var segList = repElm.getElementsByTagName("SegmentList");
  1508.         if(segList.length > 0)
  1509.           dashElm.numSegments = segList[0].childNodes.length;
  1510.  
  1511.         dashList.push(dashElm);
  1512.         });
  1513.       });
  1514.  
  1515.     //logMsg(map);
  1516.     //logMsg(dashList);
  1517.  
  1518.     var maxBitRateMap = {};
  1519.  
  1520.     forEach(dashList, function(idx, dashElm) {
  1521.       if(dashElm.mimeType != "video/mp4" && dashElm.mimeType != "video/webm")
  1522.         return;
  1523.  
  1524.       var id = [ dashElm.mimeType, dashElm.width, dashElm.height, dashElm.frameRate ].join("|");
  1525.  
  1526.       if(maxBitRateMap[id] == null || maxBitRateMap[id] < dashElm.bandwidth)
  1527.         maxBitRateMap[id] = dashElm.bandwidth;
  1528.       });
  1529.  
  1530.     forEach(dashList, function(idx, dashElm) {
  1531.       var foundIdx;
  1532.  
  1533.       forEach(map.fmtUrlList, function(idx, mapElm) {
  1534.         if(dashElm.id == mapElm.itag) {
  1535.           foundIdx = idx;
  1536.           return false;
  1537.           }
  1538.         });
  1539.  
  1540.       if(foundIdx != null) {
  1541.         if(dashElm.numSegments != null)
  1542.           map.fmtUrlList[foundIdx].numSegments = dashElm.numSegments;
  1543.  
  1544.         return;
  1545.         }
  1546.  
  1547.       //logMsg(dashElm);
  1548.  
  1549.       if((dashElm.mimeType == "video/mp4" || dashElm.mimeType == "video/webm") && (dashElm.width >= 1000 || dashElm.height >= 1000)) {
  1550.         var id = [ dashElm.mimeType, dashElm.width, dashElm.height, dashElm.frameRate ].join("|");
  1551.  
  1552.         if(maxBitRateMap[id] == null || dashElm.bandwidth < maxBitRateMap[id])
  1553.           return;
  1554.  
  1555.         var size = dashElm.width + "x" + dashElm.height;
  1556.  
  1557.         if(map.fmtMap[dashElm.id] == null)
  1558.           map.fmtMap[dashElm.id] = { res: cnvResName(size) };
  1559.  
  1560.         map.fmtUrlList.push({
  1561.           bitrate: dashElm.bandwidth,
  1562.           effType: dashElm.mimeType == "video/mp4" ? "video/x-m4v" : null,
  1563.           filesize: dashElm.len,
  1564.           fps: dashElm.frameRate,
  1565.           itag: dashElm.id,
  1566.           quality: mapResToQuality(size),
  1567.           size: size,
  1568.           type: dashElm.mimeType + ";+codecs=\"" + dashElm.codecs + "\"",
  1569.           url: dashElm.url,
  1570.           numSegments: dashElm.numSegments
  1571.           });
  1572.         }
  1573.       else if(dashElm.mimeType == "audio/mp4" && dashElm.audioSamplingRate >= 44100) {
  1574.         if(map.fmtMap[dashElm.id] == null) {
  1575.           map.fmtMap[dashElm.id] = { res: "Audio" };
  1576.           }
  1577.  
  1578.         map.fmtUrlList.push({
  1579.           bitrate: dashElm.bandwidth,
  1580.           filesize: dashElm.len,
  1581.           itag: dashElm.id,
  1582.           quality: "audio",
  1583.           type: dashElm.mimeType + ";+codecs=\"" + dashElm.codecs + "\"",
  1584.           url: dashElm.url
  1585.           });
  1586.         }
  1587.       });
  1588.  
  1589.     if(condInsertHdr(me.getInsertPt()))
  1590.       me.createLinks(dom.gE(HDR_LINKS_HTML_ID), map);
  1591.     }
  1592.  
  1593.   // Entry point
  1594.   var me = this;
  1595.  
  1596.   if(!map.dashmpd) {
  1597.     setTimeout(callback, 0);
  1598.     return;
  1599.     }
  1600.  
  1601.   //logMsg(map.dashmpd);
  1602.  
  1603.   if(map.dashmpd.match(/\/s\/([a-zA-Z0-9.]+)\//)) {
  1604.     var sig = deobfuscateVideoSig(map.scriptName, RegExp.$1);
  1605.     map.dashmpd = map.dashmpd.replace(/\/s\/[a-zA-Z0-9.]+\//, "/sig/" + sig + "/");
  1606.     }
  1607.  
  1608.   dom.crossAjax({
  1609.     url: map.dashmpd,
  1610.     dataType: "xml",
  1611.  
  1612.     success: function(data, status, xhr) {
  1613.       parse(data);
  1614.       callback();
  1615.       },
  1616.  
  1617.     error: function(xhr, status) {
  1618.       callback();
  1619.       },
  1620.  
  1621.     complete: function(xhr) {
  1622.       }
  1623.     });
  1624.   };
  1625.  
  1626. Links.prototype.checkFmts = function(forceFlag) {
  1627.   var me = this;
  1628.  
  1629.   if(!userConfig.showVideoFormats)
  1630.     return;
  1631.  
  1632.   if(!forceFlag && userConfig.showVideoFormats == "btn") {
  1633.     condRemoveHdr();
  1634.  
  1635.     if(dom.gE(VID_FMT_BTN_ID))
  1636.       return;
  1637.  
  1638.     // 'container' is for Material Design
  1639.     var mastH = dom.gE("yt-masthead-signin") || dom.gE("yt-masthead-user") || dom.gE("container");
  1640.     if(!mastH)
  1641.       return;
  1642.  
  1643.     var btn = dom.cE("button");
  1644.     dom.attr(btn, "id", VID_FMT_BTN_ID);
  1645.     dom.attr(btn, "class", "yt-uix-button yt-uix-button-default");
  1646.     btn.innerHTML = "VidFmts";
  1647.  
  1648.     dom.prepend(mastH, btn);
  1649.  
  1650.     dom.addEvent(btn, "click", function(evt) {
  1651.       me.checkFmts(/*force*/ true);
  1652.       });
  1653.  
  1654.     return;
  1655.     }
  1656.  
  1657.   if(!loc.href.match(/watch\?(?:.+&)?v=([a-zA-Z0-9_-]+)/))
  1658.     return false;
  1659.  
  1660.   var videoId = RegExp.$1;
  1661.  
  1662.   var url = loc.protocol + "//" + loc.host + "/watch?v=" + videoId;
  1663.  
  1664.   var curVideoUrl = loc.toString();
  1665.  
  1666.   getVideoInfo(url, function(map) {
  1667.     me.parseDashManifest(map, function() {
  1668.       // Has become stale (eg switch forward/back pages quickly)
  1669.       if(curVideoUrl != loc.toString())
  1670.         return;
  1671.  
  1672.       me.showLinks(me.getInsertPt(), map);
  1673.       });
  1674.     });
  1675.   };
  1676.  
  1677. Links.prototype.genUrl = function(map, elm) {
  1678.   var url = elm.url + "&title=" + encodeSafeFname(map.title);
  1679.  
  1680.   if(elm.sig != null)
  1681.     url += "&sig=" + elm.sig;
  1682.  
  1683.   return url;
  1684.   };
  1685.  
  1686. Links.prototype.emitLinks = function(map) {
  1687.   function fmtSize(size, units) {
  1688.     if(!units)
  1689.       units = [ "kB", "MB", "GB" ];
  1690.  
  1691.     for(var idx = 0; idx < units.length; ++idx) {
  1692.       size /= 1000;
  1693.  
  1694.       if(size < 10)
  1695.         return Math.round(size * 100) / 100 + units[idx];
  1696.  
  1697.       if(size < 100)
  1698.         return Math.round(size * 10) / 10 + units[idx];
  1699.  
  1700.       if(size < 1000 || idx == units.length - 1)
  1701.         return Math.round(size) + units[idx];
  1702.       }
  1703.     }
  1704.  
  1705.   function fmtBitrate(size) {
  1706.     return fmtSize(size, [ "kbps", "Mbps", "Gbps" ]);
  1707.     }
  1708.  
  1709.   function getFileExt(videoName, elm) {
  1710.     if(videoName == "VP9")
  1711.       return "video.webm";
  1712.  
  1713.     if(videoName == "VOR")
  1714.       return "audio.webm";
  1715.  
  1716.     return videoName.toLowerCase();
  1717.     }
  1718.  
  1719.   // Entry point
  1720.   var me = this;
  1721.   var s = [];
  1722.  
  1723.   var resMap = {};
  1724.  
  1725.   map.fmtUrlList.sort(cmpUrlList);
  1726.  
  1727.   forEach(map.fmtUrlList, function(idx, elm) {
  1728.     var fmtMap = map.fmtMap[elm.itag];
  1729.  
  1730.     if(!resMap[fmtMap.res]) {
  1731.       resMap[fmtMap.res] = [];
  1732.       resMap[fmtMap.res].quality = elm.quality;
  1733.       }
  1734.  
  1735.     resMap[fmtMap.res].push(elm);
  1736.     });
  1737.  
  1738.   for(var res in resMap) {
  1739.     var qFields = [];
  1740.  
  1741.     qFields.push(dom.emitHtml("div", { "class": CSS_PREFIX + "quality " + CSS_PREFIX + resMap[res].quality }, res));
  1742.  
  1743.     forEach(resMap[res], function(idx, elm) {
  1744.       var fields = [];
  1745.       var fmtMap = map.fmtMap[elm.itag];
  1746.       var videoName = getVideoName(elm.effType || elm.type);
  1747.  
  1748.       var addMsg = [ elm.itag, elm.type, elm.size || elm.quality ];
  1749.  
  1750.       if(elm.fps != null)
  1751.         addMsg.push(elm.fps + "fps");
  1752.  
  1753.       var varMsg = "";
  1754.  
  1755.       if(elm.bitrate != null)
  1756.         varMsg = fmtBitrate(elm.bitrate);
  1757.       else if(fmtMap.vars != null)
  1758.         varMsg = fmtMap.vars.join();
  1759.  
  1760.       addMsg.push(varMsg);
  1761.  
  1762.       if(elm.s != null)
  1763.         addMsg.push("sig-" + elm.s.length);
  1764.  
  1765.       if(elm.filesize != null && elm.filesize >= 0)
  1766.         addMsg.push(fmtSize(elm.filesize));
  1767.  
  1768.       var vidSuffix = "";
  1769.  
  1770.       if(inArray(elm.itag, [ 82, 83, 84, 100, 101, 102 ]) >= 0)
  1771.         vidSuffix = " (3D)";
  1772.       else if(elm.fps != null && elm.fps >= HFR_CUTOFF)
  1773.         vidSuffix = " (HFR)";
  1774.  
  1775.       fields.push(dom.emitHtml("div", { "class": CSS_PREFIX + "video " + CSS_PREFIX + videoName.toLowerCase() }, videoName + vidSuffix));
  1776.  
  1777.       if(elm.filesize != null) {
  1778.         var filesize = elm.filesize;
  1779.  
  1780.         if((map.isLive || (elm.numSegments || 1) > 1) && filesize == 0)
  1781.           filesize = -1;
  1782.  
  1783.         if(filesize >= 0) {
  1784.           fields.push(dom.emitHtml("div", { "class": CSS_PREFIX + "filesize" }, fmtSize(filesize)));
  1785.           }
  1786.         else {
  1787.           var msg;
  1788.  
  1789.           if(elm.isDrm)
  1790.             msg = "DRM";
  1791.           else if(elm.s != null)
  1792.             msg = "sig-" + elm.s.length;
  1793.           else if(elm.numSegments > 1)
  1794.             msg = "Frag";
  1795.           else if(map.isLive)
  1796.             msg = "Live";
  1797.           else
  1798.             msg = "Err";
  1799.  
  1800.           fields.push(dom.emitHtml("div", { "class": CSS_PREFIX + "filesize-err" }, msg));
  1801.           }
  1802.         }
  1803.  
  1804.       var url;
  1805.  
  1806.       if(elm.isDrm)
  1807.         url = elm.conn + "?" + elm.stream;
  1808.       else
  1809.         url = me.genUrl(map, elm);
  1810.  
  1811.       var fname = cnvSafeFname(map.title);
  1812.       var ext = getFileExt(videoName, elm);
  1813.  
  1814.       if(ext)
  1815.         fname += "." + ext;
  1816.  
  1817.       var ahref = dom.emitHtml("a", {
  1818.         download: fname,
  1819.         ext: ext,
  1820.         href: url,
  1821.         res: res,
  1822.         title: addMsg.join(" | ")
  1823.         }, fields.join(""));
  1824.  
  1825.       qFields.push(ahref);
  1826.       });
  1827.  
  1828.     s.push(dom.emitHtml("div", { "class": CSS_PREFIX + "group" }, qFields.join("")));
  1829.     }
  1830.  
  1831.   return s.join("");
  1832.   };
  1833.  
  1834. Links.prototype.createLinks = function(insertNode, map) {
  1835.   function copyToClipboard(text) {
  1836.     var node = dom.cE("textarea");
  1837.  
  1838.     // Needed to prevent scrolling to top of page
  1839.     node.style.position = "fixed";
  1840.  
  1841.     node.value = text;
  1842.  
  1843.     dom.append(document.body, node);
  1844.  
  1845.     node.focus();
  1846.     node.select();
  1847.  
  1848.     var ret = false;
  1849.  
  1850.     try {
  1851.       if(document.execCommand("copy"))
  1852.         ret = true;
  1853.       } catch(e) {
  1854.         }
  1855.  
  1856.     document.body.removeChild(node);
  1857.  
  1858.     return ret;
  1859.     }
  1860.  
  1861.   function addCopyHandler(node) {
  1862.     forEach(dom.gT(node, "a"), function(idx, elm) {
  1863.       dom.addEvent(elm, "click", function(evt) {
  1864.         var me = this;
  1865.  
  1866.         var ext = dom.attr(me, "ext");
  1867.         var res = dom.attr(me, "res") || "";
  1868.  
  1869.         // This is the only video that can be downloaded directly
  1870.         if(ext == "mp4" && res.match(/^[a-z]?720[a-z]$/))
  1871.           return;
  1872.  
  1873.         evt.preventDefault();
  1874.  
  1875.         var fname = dom.attr(me, "download");
  1876.         //logMsg(fname);
  1877.  
  1878.         copyToClipboard(fname);
  1879.  
  1880.         var orgCls = dom.attr(me, "class") || "";
  1881.  
  1882.         dom.attr(me, "class", orgCls + " flash");
  1883.         setTimeout(function() { dom.attr(me, "class", orgCls + " flash-out"); }, 250);
  1884.         setTimeout(function() { dom.attr(me, "class", orgCls); }, 500);
  1885.         });
  1886.       });
  1887.     }
  1888.  
  1889.   // Entry point
  1890.   var me = this;
  1891.  
  1892.   if(insertNode == null)
  1893.     return;
  1894.  
  1895.   /* Emit to tmp node first because in GM 4, <a> event does not fire on nodes
  1896.    already in the DOM. */
  1897.  
  1898.   var stgNode = dom.cE("div");
  1899.   dom.html(stgNode, me.emitLinks(map));
  1900.  
  1901.   if(userConfig.copyToClipboard)
  1902.     addCopyHandler(stgNode);
  1903.  
  1904.   dom.html(insertNode, "");
  1905.  
  1906.   while(stgNode.childNodes.length > 0)
  1907.     insertNode.appendChild(stgNode.firstChild);
  1908.   };
  1909.  
  1910. var INI_SHOW_FILESIZE_DELAY_MS = 500;
  1911. var SUB_SHOW_FILESIZE_DELAY_MS = 150;
  1912. var PERIODIC_TAG_LINK_DELAY_MS = 3000;
  1913.  
  1914. Links.prototype.showLinks = function(divId, map) {
  1915.   function updateLinks() {
  1916.     // Has become stale (eg switch forward/back pages quickly)
  1917.     if(curVideoUrl != loc.toString())
  1918.       return;
  1919.  
  1920.     //!! Hack to update file size
  1921.     var node = dom.gE(HDR_LINKS_HTML_ID);
  1922.     if(node)
  1923.       me.createLinks(node, map);
  1924.     }
  1925.  
  1926.   // Entry point
  1927.   var me = this;
  1928.  
  1929.   // video is not avail
  1930.   if(!map.fmtUrlList)
  1931.     return;
  1932.  
  1933.   //logMsg(JSON.stringify(map));
  1934.  
  1935.   if(!condInsertHdr(divId))
  1936.     return;
  1937.  
  1938.   me.createLinks(dom.gE(HDR_LINKS_HTML_ID), map);
  1939.  
  1940.   if(!userConfig.showVideoSize)
  1941.     return;
  1942.  
  1943.   var curVideoUrl = loc.toString();
  1944.  
  1945.   forEach(map.fmtUrlList, function(idx, elm) {
  1946.     //logMsg(elm.itag + " " + elm.url);
  1947.  
  1948.     // We just fail outright for protected/obfuscated videos
  1949.     if(elm.isDrm || elm.s != null) {
  1950.       elm.filesize = -1;
  1951.       updateLinks();
  1952.       return;
  1953.       }
  1954.  
  1955.     if(elm.clen != null) {
  1956.       elm.filesize = elm.clen;
  1957.       updateLinks();
  1958.       return;
  1959.       }
  1960.  
  1961.     setTimeout(function() {
  1962.       // Has become stale (eg switch forward/back pages quickly)
  1963.       if(curVideoUrl != loc.toString())
  1964.         return;
  1965.  
  1966.       dom.crossAjax({
  1967.         type: "HEAD",
  1968.         url: me.genUrl(map, elm),
  1969.  
  1970.         success: function(data, status, xhr) {
  1971.           var filesize = xhr.getResponseHeader("Content-Length");
  1972.           if(filesize == null)
  1973.             return;
  1974.  
  1975.           //logMsg(map.title + " " + elm.itag + ": " + filesize);
  1976.           elm.filesize = +filesize;
  1977.  
  1978.           updateLinks();
  1979.           },
  1980.  
  1981.         error: function(xhr, status) {
  1982.           //logMsg(map.fmtMap[elm.itag].res + " " + getVideoName(elm.type) + ": " + xhr.status);
  1983.  
  1984.           if(xhr.status != 403 && xhr.status != 404)
  1985.             return;
  1986.  
  1987.           elm.filesize = -1;
  1988.  
  1989.           updateLinks();
  1990.           },
  1991.  
  1992.         complete: function(xhr) {
  1993.           //logMsg(map.title + ": " + xhr.getAllResponseHeaders());
  1994.           }
  1995.         });
  1996.        }, INI_SHOW_FILESIZE_DELAY_MS + idx * SUB_SHOW_FILESIZE_DELAY_MS);
  1997.     });
  1998.   };
  1999.  
  2000. Links.prototype.tagLinks = function() {
  2001.   var SCANNED = 1;
  2002.   var REQ_INFO = 2;
  2003.   var ADDED_INFO = 3;
  2004.  
  2005.   function prepareTagHtml(node, map) {
  2006.     var elm = me.getPreferredFmt(map);
  2007.     var fmtMap = map.fmtMap[elm.itag];
  2008.  
  2009.     dom.attr(node, "class", LINKS_HTML_ID + " " + CSS_PREFIX + "quality " + CSS_PREFIX + elm.quality);
  2010.  
  2011.     var label = fmtMap.res;
  2012.  
  2013.     if(elm.fps >= HFR_CUTOFF)
  2014.       label += elm.fps;
  2015.  
  2016.     var tagEvent;
  2017.  
  2018.     if(userConfig.tagLinks == "label")
  2019.       tagEvent = "click";
  2020.     else
  2021.       tagEvent = "mouseenter";
  2022.  
  2023.     dom.addEvent(node, tagEvent, function(evt) {
  2024.       //logMsg("mouse enter " + map.videoId);
  2025.       var pos = dom.offset(node);
  2026.       //logMsg("mouse enter: x " + pos.left + ", y " + pos.top);
  2027.  
  2028.       var toolTipNode = dom.gE(LINKS_TP_HTML_ID);
  2029.  
  2030.       dom.attr(toolTipNode, "style", "position: absolute; left: " + pos.left + "px; top: " + pos.top + "px");
  2031.  
  2032.       me.createLinks(toolTipNode, map);
  2033.  
  2034.       startChkMouseInPopup();
  2035.       });
  2036.  
  2037.     return label;
  2038.     }
  2039.  
  2040.   function addTag(hNode, map) {
  2041.     //logMsg(dom.html(hNode));
  2042.     //logMsg("hNode " + dom.attr(hNode, "class"));
  2043.     //var img = dom.gT(hNode, "img") [0];
  2044.     //logMsg(dom.attr(img, "src"));
  2045.     //logMsg(dom.attr(img, "class"));
  2046.  
  2047.     dom.attr(hNode, CSS_PREFIX + "processed", ADDED_INFO);
  2048.  
  2049.     var node = dom.cE("div");
  2050.  
  2051.     if(map.fmtUrlList && map.fmtUrlList.length > 0) {
  2052.       tagHtml = prepareTagHtml(node, map);
  2053.       }
  2054.     else {
  2055.       dom.attr(node, "class", LINKS_HTML_ID + " " + CSS_PREFIX + "not-avail");
  2056.       tagHtml = "NA";
  2057.       }
  2058.  
  2059.     var parentNode;
  2060.     var insNode;
  2061.  
  2062.     var cls = dom.attr(hNode, "class") || "";
  2063.     var isVideoWallStill = cls.match(/videowall-still/);
  2064.     if(isVideoWallStill) {
  2065.       parentNode = hNode;
  2066.       insNode = hNode.firstChild;
  2067.       }
  2068.     else {
  2069.       parentNode = hNode.parentNode;
  2070.       insNode = hNode;
  2071.       }
  2072.  
  2073.     // Remove existing tags
  2074.     var divNodes = parentNode.getElementsByTagName("div");
  2075.     for(var i = 0; i < divNodes.length; ++i) {
  2076.       var hNode = divNodes[i];
  2077.  
  2078.       if(me.isTagDiv(hNode))
  2079.         hNode.parentNode.removeChild(hNode);
  2080.       else
  2081.         ++i;
  2082. 	    }
  2083.  
  2084.     var parentCssPositionStyle = window.getComputedStyle(parentNode, null).getPropertyValue("position");
  2085.  
  2086.     if(parentCssPositionStyle != "absolute" && parentCssPositionStyle != "relative")
  2087.       dom.attr(parentNode, "class", dom.attr(parentNode, "class") + " " + CSS_PREFIX + "pos-rel");
  2088.  
  2089.     parentNode.insertBefore(node, insNode);
  2090.  
  2091.     dom.html(node, tagHtml);
  2092.     }
  2093.  
  2094.   function getFmt(videoId, hNode) {
  2095.     if(videoInfoCache[videoId]) {
  2096.       addTag(hNode, videoInfoCache[videoId]);
  2097.       return;
  2098.       }
  2099.  
  2100.     var url;
  2101.  
  2102.     if(videoId.match(/.+==$/))
  2103.       url = loc.protocol + "//" + loc.host + "/cthru?key=" + videoId;
  2104.     else
  2105.       url = loc.protocol + "//" + loc.host + "/watch?v=" + videoId;
  2106.  
  2107.     getVideoInfo(url, function(map) {
  2108.       videoInfoCache[videoId] = map;
  2109.       addTag(hNode, map);
  2110.       });
  2111.     }
  2112.  
  2113.   // Entry point
  2114.   var me = this;
  2115.  
  2116.   var list = [];
  2117.  
  2118.   forEach(dom.gT("a"), function(idx, hNode) {
  2119.     var href = dom.attr(hNode, "href") || "";
  2120.  
  2121.     if(!href.match(/watch\?v=([a-zA-Z0-9_-]+)/) &&
  2122.      !href.match(/watch_videos.+?&video_ids=([a-zA-Z0-9_-]+)/))
  2123.       return;
  2124.  
  2125.     var videoId = RegExp.$1;
  2126.     var oldHref = dom.attr(hNode, CSS_PREFIX + "href");
  2127.  
  2128.     if(href == oldHref && dom.attr(hNode, CSS_PREFIX + "processed"))
  2129.       return;
  2130.  
  2131.     if(!dom.inViewport(hNode))
  2132.       return;
  2133.  
  2134.     dom.attr(hNode, CSS_PREFIX + "processed", SCANNED);
  2135.     dom.attr(hNode, CSS_PREFIX + "href", href);
  2136.  
  2137.     var cls = dom.attr(hNode, "class") || "";
  2138.     if(!cls.match(/videowall-still/)) {
  2139.       if(cls == "yt-button" || cls.match(/yt-uix-button/))
  2140.         return;
  2141.  
  2142.       // Material Design
  2143.       if(cls.match(/ytd-playlist-(panel-)?video-renderer/))
  2144.         return;
  2145.  
  2146.       if(dom.attr(hNode.parentNode, "class") == "video-time")
  2147.         return;
  2148.  
  2149.       if(dom.html(hNode).match(/video-logo/i))
  2150.         return;
  2151.  
  2152.       var img = dom.gT(hNode, "img");
  2153.       if(img == null || img.length == 0)
  2154.         return;
  2155.  
  2156.       img = img[0];
  2157.  
  2158.       // /yts/img/pixel-*.gif is the placeholder image
  2159.       // can be null as well
  2160.       var imgSrc = dom.attr(img, "src") || "";
  2161.       if(imgSrc.indexOf("ytimg.com") < 0 && !imgSrc.match(/^\/yts\/img\/.*\.gif$/) && imgSrc != "")
  2162.         return;
  2163.  
  2164.       var tnSrc = dom.attr(img, "thumb") || "";
  2165.  
  2166.       if(imgSrc.match(/.+?\/([a-zA-Z0-9_-]*)\/(hq)?default\.jpg$/))
  2167.         videoId = RegExp.$1;
  2168.       else if(tnSrc.match(/.+?\/([a-zA-Z0-9_-]*)\/(hq)?default\.jpg$/))
  2169.         videoId = RegExp.$1;
  2170.       }
  2171.  
  2172.     //logMsg(idx + " " + href);
  2173.     //logMsg("videoId: " + videoId);
  2174.  
  2175.     list.push({ videoId: videoId, hNode: hNode });
  2176.  
  2177.     dom.attr(hNode, CSS_PREFIX + "processed", REQ_INFO);
  2178.     });
  2179.  
  2180.   forLoop({ num: list.length, inc: TAG_LINK_NUM_PER_BATCH, batchIdx: 0 }, function(idx) {
  2181.     var batchIdx = this.batchIdx++;
  2182.     var batchList = list.slice(idx, idx + TAG_LINK_NUM_PER_BATCH);
  2183.  
  2184.     setTimeout(function() {
  2185.       forEach(batchList, function(idx, elm) {
  2186.         //logMsg(batchIdx + " " + idx + " " + elm.hNode.href);
  2187.         getFmt(elm.videoId, elm.hNode);
  2188.         });
  2189.       }, INI_TAG_LINK_DELAY_MS + batchIdx * SUB_TAG_LINK_DELAY_MS);
  2190.     });
  2191.   };
  2192.  
  2193. Links.prototype.isTagDiv = function(node) {
  2194.   var cls = dom.attr(node, "class") || "";
  2195.   return cls.match(new RegExp("(^|\\s+)" + RegExp.escape(LINKS_HTML_ID) + "\\s+" + RegExp.escape(CSS_PREFIX + "quality") + "(\\s+|$)"));
  2196.   };
  2197.  
  2198. Links.prototype.invalidateTagLinks = function() {
  2199.   var me = this;
  2200.  
  2201.   if(!userConfig.tagLinks)
  2202.     return;
  2203.  
  2204.   forEach(dom.gT("a"), function(idx, hNode) {
  2205.     hNode.removeAttribute(CSS_PREFIX + "processed");
  2206.     });
  2207.  
  2208.   var nodes = dom.gT("div");
  2209.  
  2210.   for(var i = 0; i < nodes.length; ) {
  2211.     var hNode = nodes[i];
  2212.  
  2213.     if(me.isTagDiv(hNode))
  2214.       hNode.parentNode.removeChild(hNode);
  2215.     else
  2216.       ++i;
  2217.     }
  2218.   };
  2219.  
  2220. Links.prototype.periodicTagLinks = function(delayMs) {
  2221.   function poll() {
  2222.     me.tagLinks();
  2223.     me.tagLinksTimerId = setTimeout(poll, PERIODIC_TAG_LINK_DELAY_MS);
  2224.     }
  2225.  
  2226.   // Entry point
  2227.   if(!userConfig.tagLinks)
  2228.     return;
  2229.  
  2230.   var me = this;
  2231.  
  2232.   delayMs = delayMs || 0;
  2233.  
  2234.   if(me.tagLinksTimerId != null) {
  2235.     clearTimeout(me.tagLinksTimerId);
  2236.     delete me.tagLinksTimerId;
  2237.     }
  2238.  
  2239.   setTimeout(poll, delayMs);
  2240.   };
  2241.  
  2242. Links.prototype.getInsertPt = function() {
  2243.   if(dom.gE("page"))
  2244.     return "page";
  2245.   else if(dom.gE("columns")) // 2017 Material Design
  2246.     return "columns";
  2247.   else
  2248.     return "top";
  2249.   };
  2250.  
  2251. // -----------------------------------------------------------------------------
  2252.  
  2253. Links.prototype.loadSettings = function() {
  2254.   var obj = localStorage[STORE_ID];
  2255.   if(obj == null)
  2256.     return;
  2257.  
  2258.   obj = JSON.parse(obj);
  2259.  
  2260.   this.lastChkReqTs = +obj.lastChkReqTs;
  2261.   this.lastChkTs = +obj.lastChkTs;
  2262.   this.lastChkVer = +obj.lastChkVer;
  2263.   };
  2264.  
  2265. Links.prototype.storeSettings = function() {
  2266.   localStorage[STORE_ID] = JSON.stringify({
  2267.     lastChkReqTs: this.lastChkReqTs,
  2268.     lastChkTs: this.lastChkTs,
  2269.     lastChkVer: this.lastChkVer
  2270.     });
  2271.   };
  2272.  
  2273. // -----------------------------------------------------------------------------
  2274.  
  2275. var UPDATE_CHK_INTERVAL = 5 * 86400;
  2276. var FAIL_TO_CHK_UPDATE_INTERVAL = 14 * 86400;
  2277.  
  2278. Links.prototype.chkVer = function(forceFlag) {
  2279.   if(this.lastChkVer > relInfo.ver) {
  2280.     this.showNewVer({ ver: this.lastChkVer });
  2281.     return;
  2282.     }
  2283.  
  2284.   var now = timeNowInSec();
  2285.  
  2286.   //logMsg("lastChkReqTs " + this.lastChkReqTs + ", diff " + (now - this.lastChkReqTs));
  2287.   //logMsg("lastChkTs " + this.lastChkTs);
  2288.   //logMsg("lastChkVer " + this.lastChkVer);
  2289.  
  2290.   if(this.lastChkReqTs == null || now < this.lastChkReqTs) {
  2291.     this.lastChkReqTs = now;
  2292.     this.storeSettings();
  2293.     return;
  2294.     }
  2295.  
  2296.   if(now - this.lastChkReqTs < UPDATE_CHK_INTERVAL)
  2297.     return;
  2298.  
  2299.   if(this.lastChkReqTs - this.lastChkTs > FAIL_TO_CHK_UPDATE_INTERVAL)
  2300.     logMsg("Failed to check ver for " + ((this.lastChkReqTs - this.lastChkTs) / 86400) + " days");
  2301.  
  2302.   this.lastChkReqTs = now;
  2303.   this.storeSettings();
  2304.  
  2305.   unsafeWin[JSONP_ID] = this;
  2306.  
  2307.   var script = dom.cE("script");
  2308.   script.type = "text/javascript";
  2309.   script.src  = SCRIPT_UPDATE_LINK;
  2310.   dom.append(doc.body, script);
  2311.   };
  2312.  
  2313. Links.prototype.chkVerCallback = function(data) {
  2314.   delete unsafeWin[JSONP_ID];
  2315.  
  2316.   this.lastChkTs = timeNowInSec();
  2317.   this.storeSettings();
  2318.  
  2319.   //logMsg(JSON.stringify(data));
  2320.  
  2321.   var latestElm = data[0];
  2322.  
  2323.   if(latestElm.ver <= relInfo.ver)
  2324.     return;
  2325.  
  2326.   this.showNewVer(latestElm);
  2327.   };
  2328.  
  2329. Links.prototype.showNewVer = function(latestElm) {
  2330.   function getVerStr(ver) {
  2331.     var verStr = "" + ver;
  2332.  
  2333.     var majorV = verStr.substr(0, verStr.length - 4) || "0";
  2334.     var minorV = verStr.substr(verStr.length - 4, 2);
  2335.     return majorV + "." + minorV;
  2336.     }
  2337.  
  2338.   // Entry point
  2339.   this.lastChkVer = latestElm.ver;
  2340.   this.storeSettings();
  2341.  
  2342.   condInsertUpdateIcon();
  2343.  
  2344.   var aNode = dom.gE(UPDATE_HTML_ID);
  2345.  
  2346.   aNode.href = SCRIPT_LINK;
  2347.  
  2348.   if(latestElm.desc != null)
  2349.     dom.attr(aNode, "title", latestElm.desc);
  2350.  
  2351.   dom.html(aNode, dom.emitHtml("b", SCRIPT_NAME + " " + getVerStr(relInfo.ver)) +
  2352.    "<br>Click to update to " + getVerStr(latestElm.ver));
  2353.   };
  2354.  
  2355. // -----------------------------------------------------------------------------
  2356.  
  2357. var WAIT_FOR_READY_POLL_MS = 300;
  2358. var SCROLL_TAG_LINK_DELAY_MS = 200;
  2359.  
  2360. var inst;
  2361.  
  2362. function waitForReady() {
  2363.   function start() {
  2364.     inst = new Links();
  2365.  
  2366.     inst.init();
  2367.     inst.loadSettings();
  2368.     decryptSig.load();
  2369.  
  2370.     dom.insertCss(CSS_STYLES);
  2371.  
  2372.     condInsertTooltip();
  2373.  
  2374.     if(loc.pathname.match(/\/watch/)) {
  2375.       inst.checkFmts();
  2376.       }
  2377.  
  2378.     inst.periodicTagLinks();
  2379.  
  2380.     inst.chkVer();
  2381.     }
  2382.  
  2383.   // Entry point
  2384.   // 'content' is for Material Design
  2385.   if(dom.gE("page") || dom.gE("content") || dom.gE("top")) {
  2386.     start();
  2387.     return;
  2388.     }
  2389.  
  2390.   if(!dom.gE("top"))
  2391.     setTimeout(waitForReady, WAIT_FOR_READY_POLL_MS);
  2392.   }
  2393.  
  2394. var scrollTop = win.pageYOffset || doc.documentElement.scrollTop;
  2395.  
  2396. dom.addEvent(win, "scroll", function(e) {
  2397.   var newScrollTop = win.pageYOffset || doc.documentElement.scrollTop;
  2398.  
  2399.   if(Math.abs(newScrollTop - scrollTop) < 100)
  2400.     return;
  2401.  
  2402.   //logMsg("scroll by " + (newScrollTop - scrollTop));
  2403.  
  2404.   scrollTop = newScrollTop;
  2405.  
  2406.   if(inst)
  2407.     inst.periodicTagLinks(SCROLL_TAG_LINK_DELAY_MS);
  2408.   });
  2409.  
  2410. // -----------------------------------------------------------------------------
  2411.  
  2412. var CHK_MOUSE_IN_POPUP_POLL_MS = 1000;
  2413.  
  2414. var curMousePos = {};
  2415. var chkMouseInPopupTimer;
  2416.  
  2417. function trackMousePos(e) {
  2418.   curMousePos.x = e.pageX;
  2419.   curMousePos.y = e.pageY;
  2420.   }
  2421.  
  2422. dom.addEvent(window, "mousemove", trackMousePos);
  2423.  
  2424. function chkMouseInPopup() {
  2425.   chkMouseInPopupTimer = null;
  2426.  
  2427.   var toolTipNode = dom.gE(LINKS_TP_HTML_ID);
  2428.   if(!toolTipNode)
  2429.     return;
  2430.  
  2431.   var pos = dom.offset(toolTipNode);
  2432.   var rect = toolTipNode.getBoundingClientRect();
  2433.  
  2434.   //logMsg("mouse x " + curMousePos.x + ", y " + curMousePos.y);
  2435.   //logMsg("x " + Math.round(pos.left) + ", y " + Math.round(pos.top) + ", wd " + Math.round(rect.width) + ", ht " + Math.round(rect.height));
  2436.  
  2437.   if(curMousePos.x < pos.left || curMousePos.x >= pos.left + rect.width ||
  2438.    curMousePos.y < pos.top || curMousePos.y >= pos.top + rect.height) {
  2439.     dom.attr(toolTipNode, "style", "display: none;");
  2440.     return;
  2441.     }
  2442.  
  2443.   chkMouseInPopupTimer = setTimeout(chkMouseInPopup, CHK_MOUSE_IN_POPUP_POLL_MS);
  2444.   }
  2445.  
  2446. function startChkMouseInPopup() {
  2447.   stopChkMouseInPopup();
  2448.   chkMouseInPopupTimer = setTimeout(chkMouseInPopup, CHK_MOUSE_IN_POPUP_POLL_MS);
  2449.   }
  2450.  
  2451. function stopChkMouseInPopup() {
  2452.   if(!chkMouseInPopupTimer)
  2453.     return;
  2454.  
  2455.   clearTimeout(chkMouseInPopupTimer);
  2456.   chkMouseInPopupTimer = null;
  2457.   }
  2458.  
  2459. // -----------------------------------------------------------------------------
  2460.  
  2461. /* YouTube reuses the current page when the user clicks on a new video. We need
  2462.  to detect it and reload the formats. */
  2463.  
  2464. (function() {
  2465.  
  2466. var PERIODIC_CHK_VIDEO_URL_MS = 1000;
  2467. var NEW_URL_TAG_LINKS_DELAY_MS = 500;
  2468.  
  2469. var curVideoUrl = loc.toString();
  2470.  
  2471. function periodicChkVideoUrl() {
  2472.   var newVideoUrl = loc.toString();
  2473.  
  2474.   if(curVideoUrl != newVideoUrl && inst) {
  2475.     //logMsg(curVideoUrl + " -> " + newVideoUrl);
  2476.  
  2477.     curVideoUrl = newVideoUrl;
  2478.  
  2479.     inst.invalidateTagLinks();
  2480.     inst.periodicTagLinks(NEW_URL_TAG_LINKS_DELAY_MS);
  2481.  
  2482.     if(loc.pathname.match(/\/watch/))
  2483.       inst.checkFmts();
  2484.     else
  2485.       condRemoveHdr();
  2486.     }
  2487.  
  2488.   setTimeout(periodicChkVideoUrl, PERIODIC_CHK_VIDEO_URL_MS);
  2489.   }
  2490.  
  2491. periodicChkVideoUrl();
  2492.  
  2493. }) ();
  2494.  
  2495. // -----------------------------------------------------------------------------
  2496.  
  2497. waitForReady();
  2498.  
  2499. }) ();