Greasy Fork

Restore YouTube Username from Handle to Custom

To restore YouTube Username to the traditional custom name

目前为 2023-06-16 提交的版本。查看 最新版本

/*

MIT License

Copyright 2023 CY Fung

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

*/
// ==UserScript==
// @name                Restore YouTube Username from Handle to Custom
// @namespace           http://tampermonkey.net/
// @version             0.2.1
// @license             MIT License
// @description         To restore YouTube Username to the traditional custom name
// @description:ja      YouTubeのユーザー名を伝統的なカスタム名に復元するために。

// @author              CY Fung
// @match               https://www.youtube.com/*
// @exclude             /^https?://\S+\.(txt|png|jpg|jpeg|gif|xml|svg|manifest|log|ini)[^\/]*$/
// @icon                https://github.com/cyfung1031/userscript-supports/raw/main/icons/general-icon.png
// @supportURL          https://github.com/cyfung1031/userscript-supports
// @run-at              document-start
// @grant               none
// @unwrap
// @allFrames
// @inject-into page
// ==/UserScript==

/* jshint esversion:8 */

(function () {
    'use strict';

    const cfg = {};
    class Mutex {

        constructor() {
            this.p = Promise.resolve()
        }

        lockWith(f) {
            this.p = this.p.then(() => new Promise(f)).catch(console.warn)
        }

    }
    const mutex = new Mutex();

    const displayNameCacheStore = new Map();

    const promisesStore = {};

    function createNetworkPromise(channelId) {

        return new Promise(networkResolve => {


            mutex.lockWith(lockResolve => {



                //INNERTUBE_API_KEY = ytcfg.data_.INNERTUBE_API_KEY


                fetch(new window.Request(`/youtubei/v1/browse?key=${cfg.INNERTUBE_API_KEY}&prettyPrint=false`, {
                    "method": "POST",
                    "mode": "same-origin",
                    "credentials": "same-origin",

                    // (-- reference: https://javascript.info/fetch-api
                    referrerPolicy: "no-referrer",
                    cache: "default",
                    redirect: "error",
                    integrity: "",
                    keepalive: false,
                    signal: undefined,
                    window: window,
                    // --)

                    "headers": {
                        "Content-Type": "application/json",
                        "Accept-Encoding": "gzip, deflate, br"
                    },
                    "body": JSON.stringify({
                        "context": {
                            "client": {
                                "clientName": "MWEB",
                                "clientVersion": `${cfg.INNERTUBE_CLIENT_VERSION || '2.20230614.01.00'}`,
                                "originalUrl": `https://m.youtube.com/channel/${channelId}`,
                                "playerType": "UNIPLAYER",
                                "platform": "MOBILE",
                                "clientFormFactor": "SMALL_FORM_FACTOR",
                                "acceptHeader": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
                                "mainAppWebInfo": {
                                    "graftUrl": `/channel/${channelId}`,
                                    "webDisplayMode": "WEB_DISPLAY_MODE_BROWSER",
                                    "isWebNativeShareAvailable": true
                                }
                            },
                            "user": {
                                "lockedSafetyMode": false
                            },
                            "request": {
                                "useSsl": true,
                                "internalExperimentFlags": [],
                                "consistencyTokenJars": []
                            }
                        },
                        "browseId": `${channelId}`
                    })
                })).then(res => {
                    lockResolve();
                    return res.json();
                }).then(res => {
                    networkResolve(res);
                }).catch(e => {
                    lockResolve();
                    console.warn(e);
                    networkResolve(null);
                })



            });

        })

    }

    const queueMicrotask_ = typeof queueMicrotask === 'function' ? queueMicrotask : requestAnimationFrame;

    function getDisplayName(channelId) {

        return new Promise(resolve => {

            let cachedResult = displayNameCacheStore.get(channelId);
            if (cachedResult) {
                resolve(cachedResult);
                return;
            }

            if (!promisesStore[channelId]) promisesStore[channelId] = createNetworkPromise(channelId);

            promisesStore[channelId].then(res => {
                // res might be null

                queueMicrotask_(() => {
                    promisesStore[channelId] = null;
                    delete promisesStore[channelId];
                });

                let resultInfo = ((res || 0).metadata||0).channelMetadataRenderer;

                if (!resultInfo) {
                    resolve(null);
                } else {

                    const { title, externalId, ownerUrls, channelUrl, vanityChannelUrl } = res.metadata.channelMetadataRenderer;

                    const displayNameRes = { title, externalId, ownerUrls, channelUrl, vanityChannelUrl };
                    displayNameCacheStore.set(channelId, displayNameRes);

                    resolve(displayNameRes);

                }


            }).catch(console.warn);

        }).catch(console.warn);
    }

    const dataChangedFuncStore = new WeakMap();


    const dataChangeFuncProducer = (dataChanged) => {

        return function () {
            let p = null;
            try {
                p = HTMLElement.querySelector.call(this, 'a[id][href*="channel/"].jkrgx');
            } catch (e) { }
            if (p && (this.data || 0).jkrgx !== 1) {
                p.classList.remove('jkrgx');
            }
            return dataChanged.apply(this, arguments)
        }


    }

    const anchorIntegrityCheck = (anchor, channelHref, channelId) => {

        // https://www.youtube.com/channel/UCRmLncxsQFcOOC8OhzUIfxQ/videos /channel/UCRmLncxsQFcOOC8OhzUIfxQ UCRmLncxsQFcOOC8OhzUIfxQ


        let currentHref = anchor.getAttribute('href');
        if (currentHref === channelHref) return true; // /channel/UCRmLncxsQFcOOC8OhzUIfxQ // /channel/UCRmLncxsQFcOOC8OhzUIfxQ

        return (currentHref + '/').indexOf(channelHref + '/') >= 0;

    }

    const domCheck = async (anchor) => {

        try {

            let channelHref = anchor.getAttribute('href');
            if (!channelHref) return;
            let parentNode = anchor.parentNode;
            while (parentNode instanceof Node) {
                if (typeof parentNode.is === 'string' && typeof parentNode.dataChanged === 'function') break;
                parentNode = parentNode.parentNode
            }
            if (parentNode instanceof Node && typeof parentNode.is === 'string' && typeof parentNode.dataChanged === 'function') { } else return;
            let authorText = (parentNode.data || 0).authorText;
            const currentDisplayed = (authorText || 0).simpleText;
            if (typeof currentDisplayed !== 'string') return;
            if (!/^\s*@[a-zA-Z0-9_\-.]{3,30}\s*$/.test(currentDisplayed)) return;
            /* https://support.google.com/youtube/answer/11585688?hl=en&co=GENIE.Platform%3DAndroid

            Handle naming guidelines

            Is between 3-30 characters
            Is made up of alphanumeric characters (A–Z, a–z, 0–9)
            Your handle can also include: underscores (_), hyphens (-), dots (.)
            Is not URL-like or phone number-like
            Is not already being used
            Follows YouTube's Community Guidelines

            // auto handle - without dot (.)

            */

            let m = /\/channel\/([^/?#\s]+)/.exec('/'+channelHref);
            if (!m || !m[1]) return;

            let oldDataChanged = parentNode.dataChanged;
            if (typeof oldDataChanged === 'function' && !oldDataChanged.jkrgx) {
                let newDataChanged = dataChangedFuncStore.get(oldDataChanged)
                if (!newDataChanged) {
                    newDataChanged = dataChangeFuncProducer(oldDataChanged);
                    newDataChanged.jkrgx = 1;
                    dataChangedFuncStore.set(oldDataChanged, newDataChanged);
                }
                parentNode.dataChanged = newDataChanged;
            }

            const fetchResult = await getDisplayName(m[1]);

            if (fetchResult === null) return;

            const { title, externalId, ownerUrls, channelUrl, vanityChannelUrl } = fetchResult;

            if (externalId !== m[1]) return; // channel id must be the same

            // anchor href might be changed by external
            if (!anchorIntegrityCheck(anchor, channelHref, externalId)) return;
            
            const parentNodeData = parentNode.data
            if (parentNode.isAttached === true && parentNode.isConnected === true && typeof parentNodeData === 'object' && parentNodeData) {


                if (authorText.simpleText !== currentDisplayed) return;
                let currentDisplayTrimmed = currentDisplayed.trim();
                let match = false;
                if ((vanityChannelUrl || '').endsWith(`/${currentDisplayTrimmed}`)) {
                    match = true;
                } else if ((ownerUrls || 0).length >= 1) {
                    for (const ownerUrl of ownerUrls) {
                        if ((ownerUrl || '').endsWith(`/${currentDisplayTrimmed}`)) {
                            match = true;
                            break;
                        }
                    }
                }
                let cSimpleText = ((parentNodeData.authorText || 0).simpleText || '');
                if (match && currentDisplayed !== title && cSimpleText === currentDisplayed) {
                    let md = Object.assign({}, parentNodeData);
                    let setBadge = false;
                    if (((((md.authorCommentBadge || 0).authorCommentBadgeRenderer || 0).authorText || 0).simpleText || '').trim() === cSimpleText.trim()) {
                        setBadge = true;
                    }
                    // parentNode.data = Object.assign({}, { jkrgx: 1 });
                    md.authorText = Object.assign({}, md.authorText, { simpleText: title });
                    if (setBadge) {
                        md.authorCommentBadge = Object.assign({}, md.authorCommentBadge);
                        md.authorCommentBadge.authorCommentBadgeRenderer = Object.assign({}, md.authorCommentBadge.authorCommentBadgeRenderer);
                        md.authorCommentBadge.authorCommentBadgeRenderer.authorText = Object.assign({}, md.authorCommentBadge.authorCommentBadgeRenderer.authorText, { simpleText: title });

                    }
                    parentNode.data = Object.assign({}, md, { jkrgx: 1 });
                }

            }
        } catch (e) {
            console.warn(e);
        }


    }

    const domChecker = () => {

        for (const anchor of document.querySelectorAll('a[id][href*="channel/"]:not(.jkrgx)')) {
            // author-text or name
            // normal url: /channel/xxxxxxx
            // Improve YouTube! - https://www.youtube.com/channel/xxxxxxx/videos
            anchor.classList.add('jkrgx');
            domCheck(anchor);
        }

    };


    /** @type {MutationObserver | null} */
    let domObserver = null;

    document.addEventListener('yt-page-data-fetched', function (evt) {

        const cfgData = (((window || 0).ytcfg || 0).data_ || 0);
        for (const key of ['INNERTUBE_API_KEY', 'INNERTUBE_CLIENT_VERSION']) {
            cfg[key] = cfgData[key];
        }

        if (!cfg['INNERTUBE_API_KEY']){
            console.warn("Userscript Error: INNERTUBE_API_KEY is not found.");
            return;
        } 

        if (!domObserver) {
            domObserver = new MutationObserver(domChecker);
        } else {
            domObserver.takeRecords();
            domObserver.disconnect();
        }

        domObserver.observe(evt.target || document.body, { childList: true, subtree: true });
        domChecker();

    });


})();