VHAddon

Blocks ViewHub popups and adds some extra spice.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name            VHAddon
// @version         1.2.0
// @description     Blocks ViewHub popups and adds some extra spice.
// @license         GPL
// @match           https://viewhub.show/*
// @grant           none
// @run-at          document-start
// @namespace       https://greasyfork.org/users/1018597
// @require         https://greasyfork.org/scripts/28536-gm-config/code/GM_config.js?version=184529
// ==/UserScript==

(() => {
    "use strict";

    GM_config.init({
        id: "VHAddonConfig",
        title: "VHAddon Configuration (refresh after save)",
        fields: {
            "block_popups": {
                "label": "Hide popups on streamer page",
                "type": "checkbox",
                "default": true,
            },
            "quality_menu": {
                "label": "Enable video quality menu",
                "type": "checkbox",
                "default": true,
            },
            "lowest_start_quality": {
                "label": "Start videos with lowest quality if the quality menu feature is active",
                "type": "checkbox",
                "default": false,
            },
            "video_preview_type": {
                "label": "Show video preview in front page",
                "type": "radio",
                "options": ["never", "mouseover", "always"],
                "default": "always",
            },
            "blocked_users": {
                "label": "Comma separated list of users to hide from the front page",
                "type": "text",
                "size": 100,
            }
        }
    });

    let addon;

    class Importer {
        #load_cache = {};
        #require;

        constructor(require) {
            this.#require = require;
        }

        find_module_id(regex, name) {
            for (const chunk of window.webpackJsonp) {
                if (name && !chunk[0].includes(name)) {
                    continue;
                }
                const modules = chunk[1];
                for (const module_id in modules) {
                    const code = modules[module_id].toString();
                    if (code.match(regex)) {
                        return module_id;
                    }
                }
            }
        }

        must_find_module_id(regex, name) {
            const result = this.find_module_id(regex, name);
            if (!result) {
                throw new Error(`Could not find module matching ${regex}` + (name ? ` in chunk "${name}"` : ""));
            }
            return result;
        }

        module(id) {
            return this.#require(id).a;
        }

        module_es6(id) {
            return this.#require.n(this.#require(id));
        }

        async chunk(name) {
            if (this.#load_cache[name] === true) {
                return;
            }
            if (this.#load_cache[name] === undefined) {
                const self = this;
                this.#load_cache[name] = (async function () {
                    await self.#require.e(name);
                    self.#load_cache[name] = true;
                })();
            }
            await this.#load_cache[name];
        }
    }

    class HLSPlayer {
        static #hls_module = null;
        #internal = null;

        constructor(stream_key, target, level, handler) {
            if (!HLSPlayer.#hls_module) {
                throw new Error("Must call HLSPlayer.init and await on it before constructing an HLSPlayer");
            }
            this.#internal = new HLSPlayer.#hls_module.a({
                xhrSetup: function (xhr, url) {
                    xhr.open("GET", url + "?token=" + Date.now())
                }
            });
            const self = this;
            this.#internal.on("hlsManifestParsed", () => {
                if (!self.#internal) {
                    return; // we were destroyed before arriving here
                }
                if (handler && handler.levels) {
                    handler.levels.call(self.#internal, self.#internal.levels);
                }
                target.muted = "muted";
                target.play();
            });
            if (handler && handler.levelChanged) {
                this.#internal.on("hlsLevelSwitched", function (_, data) {
                    handler.levelChanged.call(self.#internal, data.level);
                });
            }
            if (level !== undefined) {
                this.#internal.startLevel = 0;
                this.#internal.currentLevel = 0;
            }
            this.#internal.attachMedia(target);
            this.#internal.loadSource(`https://c1565z2457.r-cdn.com/LiveApp/streams/${stream_key}_adaptive.m3u8`);
        }

        destroy() {
            if (this.#internal) {
                this.#internal.destroy();
                this.#internal = null;
            }
        }

        static async init() {
            if (HLSPlayer.#hls_module) {
                return; // already initialized
            }
            const importer = addon.importer;
            await importer.chunk("stream");
            const hls_module_id = importer.must_find_module_id(
                /\.\/src\/hls\.ts \*/,
                "stream",
            );
            HLSPlayer.#hls_module = importer.module_es6(hls_module_id);
            if (!HLSPlayer.#hls_module) {
                throw new Error("Failed to load hls module");
            }
        }
    }

    const hlspreview = {
        props: ["poster"],
        data: function () {
            return {};
        },
        beforeUnmount: function () {
            this.stop_preview();
            this.stop_observe();
            this.anchor = null;
        },
        mounted: function () {
            this.anchor = this.get_anchor();
            this.start_observer();
            if (GM_config.get("video_preview_type") === "always") {
                this.start_preview();
            }
        },
        methods: {
            is_mounted() {
                return !!this.anchor;
            },
            get_anchor() {
                const parent = this.$el.parentElement;
                if (parent && parent.tagName == "A") {
                    return parent;
                }
                throw new Error("parent element is not an anchor");
            },
            get_user() {
                const href = this.anchor.getAttribute("href");
                const match = href.match(/\/stream\/([0-9a-zA-Z_]+)/);
                if (match) {
                    return match[1];
                }
            },
            start_observer() {
                if (!this.is_mounted()) {
                    return;
                }
                const self = this;
                this.observer = new MutationObserver((mutations) => {
                    for (const mutation of mutations) {
                        if (mutation.type === "attributes" && mutation.attributeName === "href") {
                            self.restart_preview();
                        }
                    }
                });
                this.observer.observe(this.anchor, {
                    attributes: true
                });
            },
            stop_observer() {
                if (this.observer) {
                    this.observer.disconnect();
                    this.observer = null;
                }
            },
            restart_preview() {
                if (this.hls_player) {
                    this.stop_preview();
                    this.start_preview();
                }
            },
            async start_preview() {
                if (!this.is_mounted()) {
                    return;
                }
                const user = this.get_user();
                if (!user || VHAddon.is_blocked_user(user)) {
                    return;
                }
                const stream_key = await addon.get_stream_key(user);
                if (!stream_key || !this.is_mounted()) {
                    return;
                }
                await HLSPlayer.init();
                if (this.is_mounted() && !this.hls_player) {
                    this.hls_player = new HLSPlayer(stream_key, this.$el.querySelector("video"), 0);
                }
            },
            stop_preview() {
                if (this.hls_player) {
                    this.hls_player.destroy();
                    this.hls_player = null;
                }
            },
            on_hover(b) {
                if (GM_config.get("video_preview_type") !== "mouseover") {
                    return;
                }
                if (b) {
                    if (this.hls_player) {
                        return;
                    }
                    this.start_preview();
                } else {
                    if (!this.hls_player) {
                        return;
                    }
                    this.stop_preview();
                }
            },
        },
        render: function (createElement) {
            const self = this;
            return createElement(
                "div", {
                staticClass: "v-responsive",
                style: {
                    width: 320,
                },
                on: {
                    mouseenter: function () { self.on_hover(true); },
                    mouseleave: function () { self.on_hover(false); },
                }
            },
                [
                    createElement("div", {
                        staticClass: "v-responsive__sizer",
                        style: {
                            "padding-bottom": "56.25%",
                        }
                    }),

                    createElement("video", {
                        attrs: {
                            poster: self.poster,
                        },
                        style: {
                            position: "absolute",
                            top: 0,
                            left: 0,
                            "z-index": 0,
                            width: "100%",
                            height: "100%",
                            display: "block",
                        }
                    }),

                    createElement("div", {
                        staticClass: "v-responsive__content",
                        style: {
                            "z-index": 1,
                        },
                    }, this.$slots.default)
                ]);
        }
    };

    class Component {
        static get_name(component) {
            if (!component || !component.$vnode || typeof component.$vnode.tag !== "string") {
                return;
            }
            const match = component.$vnode.tag.match(/vue\-component\-\d+\-(.+)/);
            if (match) {
                return match[1];
            }
        }

        static hook_renderer(component, hook_cb) {
            function patch(renderer) {
                return function (tag, data, children, normalizationType) {
                    const result = hook_cb(component, renderer, tag, data, children, normalizationType);
                    if (result) {
                        tag = result.tag || tag;
                        data = result.data || data;
                        children = result.children || children;
                        normalizationType = result.normalizationType || normalizationType;
                    }
                    return renderer(tag, data, children, normalizationType);
                }
            }
            if (component._self._c) {
                component._self._c = patch(component._self._c);
            } else if (component.$createElement) {
                component.$createElement = patch(component.$createElement);
            } else {
                throw new Error("hook_renderer: no renderer to hook");
            }
        }

        static is_spacer(tag, data) {
            return tag == "div" && data && data.staticClass && typeof data.staticClass === "string"
                && data.staticClass.includes("spacer");
        }

        static add_config_button(component) {
            Component.hook_renderer(component, function (component, createElement, tag, _data, children) {
                if (tag != "v-footer") {
                    return;
                }
                const config_button = createElement("v-btn", {
                    staticClass: "flexcol mx-auto catalog_footer_btn",
                    attrs: {
                        text: "",
                        height: "54",
                    },
                    on: {
                        click: function () {
                            GM_config.open();
                        },
                    }
                }, [
                    createElement("v-icon", {
                        attrs: {
                            size: "32",
                            left: component.$vuetify.breakpoint.smAndUp
                        }
                    }, ["⚙"]),
                    createElement("span", {
                        staticClass: "footer_button_text",
                    }, [component._v(" VHAddon ")])
                ]);
                for (const i in children) {
                    const child = children[i];
                    if (Component.is_spacer(child.tag, child.data)) {
                        children.splice(i, 0, config_button);
                        return;
                    }
                }
                children.push(config_button);
            });
        }
    }

    class CatalogHub {
        #vue;

        constructor(vue) {
            this.#vue = vue;
            this.#remove_blocked_users_from_catalog();
            this.#make_video_preview();
            Component.add_config_button(vue);
        }

        static #is_preview_image(tag, data) {
            return tag == "v-img" && data && data.attrs && typeof data.attrs.src === "string"
                && data.attrs.src.startsWith("/storage/preview");
        }

        #make_video_preview() {
            if (GM_config.get("video_preview_type") !== "never") {
                Component.hook_renderer(this.#vue, function (_component, _createElement, tag, data, children) {
                    if (CatalogHub.#is_preview_image(tag, data)) {
                        return {
                            tag: "vhaddon_hlspreview",
                            data: {
                                props: {
                                    poster: data.attrs.src,
                                },
                            },
                            children: children,
                        };
                    }
                });
            }
        }

        #remove_blocked_users_from_catalog() {
            const vue = this.#vue;
            vue.$watch("streams", function () {
                this.$nextTick(function () {
                    const blocked_users = VHAddon.get_blocked_users();
                    if (blocked_users.length == 0) {
                        return;
                    }
                    for (const i in vue.streams) {
                        const stream = vue.streams[i];
                        if (blocked_users.includes(stream.username)) {
                            vue.streams.splice(i, 1);
                        }
                    }
                });
            }, { immediate: true, deep: true });
        }

    }

    class VideoQuality {
        #id;
        #data;

        constructor(id, data) {
            this.#id = id;
            this.#data = data;
        }

        get id() { return this.#id; }

        static format(data) {
            return data.width + "x" + data.height + " @ " + data.bitrate.toLocaleString();
        }

        toString() {
            if ("string" === typeof this.#data) {
                return this.#data;
            }
            return VideoQuality.format(this.#data);
        }
    }

    class StreamHub {
        #vue;

        constructor(vue) {
            this.#vue = vue;
            this.#disable_popups();
            this.#enable_video_quality_menu();
            Component.add_config_button(vue);
        }

        #disable_popups() {
            if (GM_config.get("block_popups")) {
                this.#vue.checker_welcome_condition = function () { };
                this.#vue.checker_task_condition = function () { };
            }
        }

        #enable_video_quality_menu() {
            if (!GM_config.get("quality_menu")) {
                return;
            }

            const vue = this.#vue;

            function create_hls_adapter(stream_id, level) {
                HLSPlayer.init().then(() => {
                    const video = document.getElementById(vue.hls_video_id);
                    vue.hls_adapter = new HLSPlayer(stream_id, video, level, {
                        "levels": function (levels) {
                            let items = [new VideoQuality(-1, "AUTO")];
                            for (const level_id in levels) {
                                const level = levels[level_id];
                                items.push(new VideoQuality(level_id, level));
                            }
                            vue.stream_resolutions = items;
                        },
                        "levelChanged": function (id) {
                            const prefix = this.autoLevelEnabled ? "AUTO" : "MANUAL";
                            vue.now_resolution = prefix + " - " + VideoQuality.format(this.levels[id]);
                        },
                    });
                });
            }

            vue.create_hls_adapter = function (stream_id) {
                vue.stream_hls_id = stream_id;
                create_hls_adapter(stream_id, GM_config.get("lowest_start_quality") ? 0 : undefined);
            };

            vue.select_resolution = function (selection) {
                if (!vue.hls_adapter) {
                    return;
                }
                const level = selection.id != -1 ? selection.id : undefined;
                vue.hls_adapter.destroy();
                create_hls_adapter(vue.stream_hls_id, level);
            };
        }
    }

    class VHAddon {
        #importer;
        #vue;

        constructor(importer) {
            this.#importer = importer;
            this.#vue = importer.module(importer.must_find_module_id(
                /\/\*\!\s*\*\sVue\.js v\d+\.\d+\.\d+/m,
                "chunk-vendors",
            ));

            const self = this;
            this.#vue.mixin({
                created: function () { self.#on_component_created(this); },
            });

            if (GM_config.get("video_preview_type") !== "never") {
                this.#vue.component("vhaddon_hlspreview", hlspreview);
            }
        }

        get importer() { return this.#importer };
        get vue() { return this.#vue; }

        async get_stream_key(user) {
            const response = await window.fetch(`https://viewhub.show/api/profile/${user}`);
            const profile = await response.json();
            if (profile.status == "ok" && profile.data.online && profile.data.stream_key) {
                return profile.data.stream_key;
            }
        }

        #on_component_created(component) {
            switch (Component.get_name(component)) {
                case "StreamHub":
                    new StreamHub(component);
                    break;
                case "CatalogHub":
                    new CatalogHub(component);
                    break;
            }
        }

        static get_blocked_users() {
            return GM_config.get("blocked_users").split(",");
        }

        static is_blocked_user(name) {
            return VHAddon.get_blocked_users().includes(name);
        }
    }

    (window.webpackJsonp = window.webpackJsonp || []).push([
        ["vhaddon"],
        {
            "vhaddon": (_, __, require) => {
                addon = new VHAddon(new Importer(require));
            },
        },
        [
            ["vhaddon", "chunk-vendors"]
        ]
    ]);
})();