Ui.ff File ~repack~ Download Site

Here’s an interesting (and slightly obscure) piece about the ui.ff file in Call of Duty 4: Modern Warfare — and why “downloading” it was such a notorious moment for PC gamers.

4. Security Warning ⚠️

4.3 Legitimate Usage

The Solution

const fs = require('fs');
const path = require('path');
const https = require('https');
const http = require('http');

/**


    

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    Downloads a file from a URL to a specified destination.
    

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    Uses streams to handle large files efficiently.
    

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    @param string fileUrl - The URL of the file to download.
    

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    @param string destPath - The local path (including filename) to save the file.
    

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    @param Function [onProgress] - Optional callback for download progress (percent). ui.ff file download
    

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    @returns Promise<string> - Resolves with the destination path on success.
*/
function downloadFile(fileUrl, destPath, onProgress) {
return new Promise((resolve, reject) => {
// 1. Parse URL to determine protocol
const parsedUrl = new URL(fileUrl);
const protocol = parsedUrl.protocol === 'https:' ? https : http;
    

    // 2. Ensure destination directory exists
const dir = path.dirname(destPath);
if (!fs.existsSync(dir)) 
fs.mkdirSync(dir,  recursive: true );

    

    // 3. Create the write stream
const fileStream = fs.createWriteStream(destPath);
let totalBytes = 0;
let receivedBytes = 0;
    

    const request = protocol.get(fileUrl, (response) => {
// Handle redirects (3xx status codes)
if (response.statusCode >= 300 && response.statusCode < 400 && response.headers.location) 
// Close current stream and follow redirect recursively
fileStream.close();
return resolve(downloadFile(response.headers.location, destPath, onProgress));

    

    // Handle non-success status codes
if (response.statusCode !== 200) {
fileStream.close(); // Close stream before deleting
fs.unlink(destPath, () => {}); // Clean up empty file
return reject(new Error(Failed to download: Status Code $response.statusCode));
}
    

    // Get total file size for progress calculation
totalBytes = parseInt(response.headers['content-length'], 10); Here’s an interesting (and slightly obscure) piece about
    

    // 4. Setup event listeners
response.on('data', (chunk) => 
receivedBytes += chunk.length;
if (onProgress && totalBytes > 0) 
const percent = ((receivedBytes / totalBytes) * 100).toFixed(2);
onProgress(percent);
);
    

    response.pipe(fileStream);
    

    fileStream.on('finish', () => 
fileStream.close();
resolve(destPath);
);
    

    }).on('error', (err) => {
// Handle request errors (DNS, Network, etc.)
fs.unlink(destPath, () => {}); // Delete partial file
reject(err);
});
    

    // Handle write stream errors (e.g., disk full)
fileStream.on('error', (err) => {
fs.unlink(destPath, () => {}); // Delete partial file
reject(err);
});
});
}
    

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// --- Usage Example ---


async function run() 
const url = 'https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf';
const savePath = './downloads/dummy.pdf';


console.log(Starting download from $url...);


try 
const result = await downloadFile(url, savePath, (percent) => 
// Update progress every chunk
process.stdout.write(\rProgress: $percent%);
);
console.log(\nSuccess! File saved to: $result);
 catch (error) 
console.error(\nDownload failed: $error.message);



run();

Error 3: "Firefox crashes on startup after adding ui.ff"