Download Discord Channel Files.js

const channel = require('./channel');
const https = require('https');
const fs = require('fs');

/*

    I am not responsible if you damage any account, this is for educational purposes only.

    Steps:
    - You will have to use https://github.com/Tyrrrz/DiscordChatExporter to get channels.json file
    - Place it into same folder as this file and rename it to channel.json
    - Install modules with npm i fs https --save
    - Run the script with node index.js

*/

console.clear();
main().then((data) => console.log(`\x1b[37m`, `\n\nDownloaded ${data.yes} files, failed ${data.no} files, skipped ${data.already} files, there were ${data.total} files in total.`));

async function main() {
    if (!fs.existsSync('./channel.json')) return console.log(`File channel.json was not found.`);
    if (!fs.existsSync('./files')) fs.mkdirSync('./files');

    let yes = 0, no = 0, total = 0, alr = 0, counter = 0;
    for await (const message of channel?.messages) {
        if (message?.attachments?.length > 0) {
            for await (const attachment of message?.attachments) {
                if (attachment?.url?.length > 0) {
                    let extension = attachment?.url?.split('.').pop(), erCheck = false; total++;

                    if (fs.existsSync(`./files/${attachment?.id}.${extension}`)) {
                        console.log(`\x1b[33m`, `File ${attachment?.id}.${extension} already exists.`); alr++;
                    } else {
                        let file = fs.createWriteStream(`./files/${attachment?.id}.${extension}`);
                        let request = await https.get(attachment?.url, (response) => {
                            response.pipe(file);
                        
                            file.on('finish', () => {
                               file.close((aaa) => { if (aaa) erCheck = true; }); console.log(`\x1b[32m`, `Downloaded ${attachment?.id}.${extension}`); yes++;
                            });
                       }).on('error', (err) => {
                            fs.unlink(`./files/${attachment?.id}.${extension}`, (aaa) => { if (aaa) erCheck = true; }); if (erCheck == true) console.log(`\x1b[31m`, `Error downloading ${attachment?.id}.${extension}`); no++;
                       });
                    };
                };
            };
        };
    };

    return new Promise((resolve, reject) => {
        let interval = setInterval(() => {
            if (yes + no + alr == total) {
                clearInterval(interval);
                return resolve({
                    already: alr,
                    total: total,
                    yes: yes,
                    no: no,
                });
            };
        }, 1000);
    });
};