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Make AV number, not BV code. F**k you BiliBili
// ==UserScript==
// @name Make AV number, not BV code
// @name:en Make AV number, not BV code
// @name:zh-CN 要AV号，不要BV码
// @namespace https://pilipili.com/bv10492
// @version 0.1.5
// @description Make AV number, not BV code. F**k you BiliBili
// @description:en Make AV number, not BV code. F**k you BiliBili
// @description:zh-CN 要AV号，不要BV码，屑站飞了
// @author jk1551
// @require https://unpkg.com/ajax-hook@2.0.0/dist/ajaxhook.min.js
// @nocompat Chrome
// @nocompat Firefox
// @nocompat Opera
// @nocompat Edge
// @match https://www.bilibili.com/video/*
// @match http://www.bilibili.com/video/*
// @match https://www.bilibili.com/bangumi/play/*
// @match http://www.bilibili.com/bangumi/play/*
// @match https://acg.tv/*
// @match http://acg.tv/*
// @match https://b23.tv/*
// @match http://b23.tv/*
// @grant none
// ==/UserScript==
/* jshint esversion: 6 */
const CONFIG = {
autoJump: false
};
// GM代码构思来自 https://greasyfork.org/zh-CN/scripts/398526-give-me-av-not-bv
(() => {
if (typeof BigInt !== "function") {
console.warn("Your browser does not support BigInt. AV/BV conversion is disabled.");
return;
}
const bv2av = (() => {
// https://www.zhihu.com/question/381784377/answer/1099438784
const table = "fZodR9XQDSUm21yCkr6zBqiveYah8bt4xsWpHnJE7jL5VG3guMTKNPAwcF";
const tr = Object.create(null);
for (let i = 0; i < 58; i += 1) {
tr[table[i]] = BigInt(i);
}
const s = [11, 10, 3, 8, 4, 6/* ←今ここ */, 2, 9, 5, 7/* 最大値 */];
// 不用BigInt的话后面做位运算就爆炸了
const xor = BigInt(177451812);
const add = BigInt(8728348608);
const pow58 = [];
// 58进制下2^32的最大位数（=6），也就是在此之前变动的最多位数，也就是s表的长度
// 以后用随机av号，超过27个二进制位的时候，就可以把上面的封印解除啦
const highestDigit = 6;
for (let i = 0; i < highestDigit; i += 1) {
pow58.push(BigInt(Math.pow(58, i)));
}
/**
* @param s {string}
*/
function list(s) {
return s.split("");
}
/**
* @param x {string} BV string; including the beginning "BV" (e.g. "BV17x411w7KC")
*/
function dec(x) {
let r = BigInt(0);
for (let i = 0; i < highestDigit; i += 1) {
r += tr[x[s[i]]] * pow58[i];
}
return Number((r - add) ^ xor);
}
/**
* @param x {number} Exsiting AV number
*/
function enc(x) {
x = BigInt(x);
x = (x ^ xor) + add;
const r = list("BV1 4 1 7 ");
for (let i = 0; i < highestDigit; i += 1) {
const index = (x / pow58[i]) % BigInt(58);
r[s[i]] = table[index];
}
return r.join("");
}
return {
enc: enc,
dec: dec
};
})();
/**
* @param avNumber {number | string | bigint}
*/
function getAvUrl(avNumber) {
return "/video/av" + avNumber.toString();
}
/**
* @param avNumber {number | string | bigint}
*/
function getAvText(avNumber) {
return "av" + avNumber.toString();
}
/**
* @param avNumber {number | string}
*/
function appendOrUpdateAvNumberLink(avNumber) {
const avInfoLabels = document.getElementsByClassName("video-data");
// 第一行：分区和日期
const infoBlock1 = avInfoLabels[0];
// 投稿日期span
// 直接塞到和infoBlock1同级会导致谜之排版错误，只好借壳咯（其实是Vue的锅
const info1 = infoBlock1.children[1];
// 我放弃创建新的元素了……干脆直接黑魔法换个a
const avreg = /av\d+/;
const oldContent = info1.textContent;
if (!avreg.test(oldContent)) {
const avUrl = getAvUrl(avNumber);
const avText = getAvText(avNumber);
info1.outerHTML = `<a href="${avUrl}" title="${avText}" target="_blank">${oldContent}\u00a0${avText}</a>`;
// 以下两行本来是调整样式，让其显示跟原来差不多的，但是Vue似乎劫持了样式设定，所以没出效果也就算了
info1.style.color = "#999";
info1.style.height = "16px";
}
}
/**
* @param avNumber {number | string}
*/
function modifyBangumiAvNumberLink(avNumber) {
const pubs = document.getElementsByClassName("pub-wrapper");
if (!pubs || pubs.length === 0) {
return;
}
const avLink = pubs[0].querySelector("a.av-link");
if (!avLink) {
return;
}
avLink.textContent = getAvText(avNumber);
avLink.href = getAvUrl(avNumber);
}
(() => {
const bvUrlRE = /\/video\/(BV[123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]+)/;
const bvmatch = bvUrlRE.exec(window.location.href);
if (bvmatch) {
console.log("F**k You BV Number!");
if (CONFIG.autoJump) {
const bvstr = bvmatch[1];
const avNumber = bv2av.dec(bvstr);
const url = getAvUrl(avNumber);
window.location.href = url;
}
}
})();
let isContentRefreshed = false;
let avNumber = Number.NaN;
let pageType = Number.NaN;
const PageType = {
video: 0,
bangumi: 1
};
// TODO: 处理 HTML5 History 相关
const bvidRE = /bvid=(BV[123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz]+)/;
const aidRE = /aid=(\d+)/;
const avidRE = /avid=(\d+)/;
ah.proxy({
//请求发起前进入
onRequest: (config, handler) => {
let match;
if (config.url.indexOf("api.bilibili.com/x/web-interface/view") > 0) {
match = bvidRE.exec(config.url);
if (match) {
// https://api.bilibili.com/x/web-interface/view?cid=167028524&bvid=BV1TE411A7VJ
avNumber = bv2av.dec(match[1]);
isContentRefreshed = true;
pageType = PageType.video;
} else {
match = aidRE.exec(config.url);
if (match) {
// https://api.bilibili.com/x/web-interface/view?cid=167028524&aid=97836354
avNumber = Number.parseInt(match[1]);
isContentRefreshed = true;
pageType = PageType.video;
}
}
} else if (config.url.indexOf("api.bilibili.com/pgc/player/web/playurl") > 0) {
match = avidRE.exec(config.url);
if (match) {
// https://api.bilibili.com/pgc/player/web/playurl?cid=122062626&qn=0&type=&otype=json&avid=70455036&ep_id=286039&fourk=1&fnver=0&fnval=16&session=xxx
avNumber = Number.parseInt(match[1]);
isContentRefreshed = true;
pageType = PageType.bangumi;
}
}
handler.next(config);
},
//请求成功后进入
onResponse: (response, handler) => {
if (response.config.url.indexOf("api.bilibili.com") > 0) {
if (isContentRefreshed) {
switch (pageType) {
case PageType.video: {
if (!Number.isNaN(avNumber)) {
setTimeout(() => appendOrUpdateAvNumberLink(avNumber));
}
break;
}
case PageType.bangumi: {
if (!Number.isNaN(avNumber)) {
setTimeout(() => modifyBangumiAvNumberLink(avNumber));
}
break;
}
default:
break;
}
}
}
handler.next(response);
}
});
})();