BV 号自动转 AV 号
// ==UserScript==
// @name bilibili BV 转 AV
// @run-at document-start
// @match *://*.bilibili.com/video/*
// @match *://*.bilibili.com/s/video/*
// @grant none
// @namespace http://tampermonkey.net/
// @version 0.1.3
// @description BV 号自动转 AV 号
// @author share121
// @icon https://www.bilibili.com/favicon.ico
// @license MIT
// ==/UserScript==
(() => {
function BV2AV(BV) {
return `${(Object.values(BV).map((e, i) =>
BigInt("fZodR9XQDSUm21yCkr6zBqiveYah8bt4xsWpHnJE7jL5VG3guMTKNPAwcF".indexOf(e)) * 58n **
BigInt([6, 2, 4, 8, 5, 9, 3, 7, 1, 0][i])
).reduce((prev, curr) => prev + curr) - 100618342136696320n) ^ 177451812n}`;
}
function replaceURL(url) {
return url.replace(/BV([1-9A-HJ-NP-Za-km-z]+)/g, (_, p1) => "av" + BV2AV(p1));
}
history.replaceState({}, "", replaceURL(location.href));
let pushState = history.pushState, replaceState = history.replaceState;
history.pushState = function (...a) {
a[a.length - 1] = replaceURL(a[a.length - 1]);
return pushState.apply(this, a);
};
history.replaceState = function (...a) {
a[a.length - 1] = replaceURL(a[a.length - 1]);
return replaceState.apply(this, a);
};
})();