Vencord/src/plugins/nitroBypass.ts

/*
 * Vencord, a modification for Discord's desktop app
 * Copyright (c) 2022 Vendicated and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/

import { addPreSendListener, addPreEditListener, removePreSendListener, removePreEditListener } from "../api/MessageEvents";
import { findByProps } from "../webpack";
import definePlugin, { OptionType } from "../utils/types";
import { Devs } from "../utils/constants";
import { UserStore } from "../webpack/common";
import { Settings } from "../Vencord";

export default definePlugin({
    name: "NitroBypass",
    authors: [Devs.Arjix],
    description: "Allows you to stream in nitro quality and send fake emojis.",
    dependencies: ["MessageEventsAPI"],
    patches: [
        {
            find: "canUseAnimatedEmojis:function",
            predicate: () => Settings.plugins.NitroBypass.enableEmojiBypass === true,
            replacement: [
                "canUseAnimatedEmojis",
                "canUseEmojisEverywhere"
            ].map(func => {
                return {
                    match: new RegExp(`${func}:function\\(.+?}`),
                    replace: `${func}:function (e) { return true; }`
                };
            })
        },
        {
            find: "canUseAnimatedEmojis:function",
            predicate: () => Settings.plugins.NitroBypass.enableStreamQualityBypass === true,
            replacement: [
                "canUseHighVideoUploadQuality",
                "canStreamHighQuality",
                "canStreamMidQuality"
            ].map(func => {
                return {
                    match: new RegExp(`${func}:function\\(.+?}`),
                    replace: `${func}:function (e) { return true; }`
                };
            })
        },
        {
            find: "STREAM_FPS_OPTION.format",
            predicate: () => Settings.plugins.NitroBypass.enableStreamQualityBypass === true,
            replacement: {
                match: /(userPremiumType|guildPremiumTier):.{0,10}TIER_\d,?/g,
                replace: ""
            }
        }
    ],
    options: {
        enableEmojiBypass: {
            description: "Allow sending fake emojis",
            type: OptionType.BOOLEAN,
            default: true,
            restartNeeded: true,
        },
        enableStreamQualityBypass: {
            description: "Allow streaming in nitro quality",
            type: OptionType.BOOLEAN,
            default: true,
            restartNeeded: true,
        }
    },

    get guildId() {
        return window.location.href.split("channels/")[1].split("/")[0];
    },

    get canUseEmotes() {
        return Boolean(UserStore.getCurrentUser().premiumType);
    },

    start() {
        if (!Settings.plugins.NitroBypass.enableEmojiBypass) {
            return;
        }

        if (this.canUseEmotes) {
            console.info("[NitroBypass] Skipping start because you have nitro");
            return;
        }

        const { getCustomEmojiById } = findByProps("getCustomEmojiById");

        function getWordBoundary(origStr, offset) {
            return (!origStr[offset] || /\s/.test(origStr[offset])) ? "" : " ";
        }

        this.preSend = addPreSendListener((_, messageObj) => {
            const { guildId } = this;
            for (const emoji of messageObj.validNonShortcutEmojis) {
                if (!emoji.require_colons) continue;
                if (emoji.guildId === guildId && !emoji.animated) continue;

                const emojiString = `<${emoji.animated ? "a" : ""}:${emoji.originalName || emoji.name}:${emoji.id}>`;
                const url = emoji.url.replace(/\?size=[0-9]+/, "?size=48");
                messageObj.content = messageObj.content.replace(emojiString, (match, offset, origStr) => {
                    return `${getWordBoundary(origStr, offset - 1)}${url}${getWordBoundary(origStr, offset + match.length)}`;
                });
            }
        });

        this.preEdit = addPreEditListener((_, __, messageObj) => {
            const { guildId } = this;

            for (const [emojiStr, _, emojiId] of messageObj.content.matchAll(/(?<!\\)<a?:(\w+):(\d+)>/ig)) {
                const emoji = getCustomEmojiById(emojiId);
                if (emoji == null || (emoji.guildId === guildId && !emoji.animated)) continue;
                if (!emoji.require_colons) continue;

                const url = emoji.url.replace(/\?size=[0-9]+/, "?size=48");
                messageObj.content = messageObj.content.replace(emojiStr, (match, offset, origStr) => {
                    return `${getWordBoundary(origStr, offset - 1)}${url}${getWordBoundary(origStr, offset + match.length)}`;
                });
            }
        });
    },

    stop() {
        removePreSendListener(this.preSend);
        removePreEditListener(this.preEdit);
    }
});