Quick Roblox CDN Hash Downloader

Program.cs

using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

namespace QuickCDNHashDownloader
{
    class Program
    {
        static void Main(string[] args)
        {
            MainApp().Wait();
        }
        static async Task MainApp()
        {
            Console.Title = "Quick Roblox CDN Downloader | Made by Yakov";
            string DownloadsFolder = GetDownloadFolderPath();
            string RobloxCDN = Path.Combine(DownloadsFolder, "RobloxCDN");

            if (!Directory.Exists(RobloxCDN))
            {
                WriteLine($"RobloxCDN folder does not exist in \"{RobloxCDN}\", Creating directory...", ConsoleColor.Blue);
                Directory.CreateDirectory(RobloxCDN);
            }
            WriteLine($"Current working download directory: {RobloxCDN}\n", ConsoleColor.Yellow);
            while (true)
            {
                WriteLine("Please paste CDN hash:", ConsoleColor.Cyan);
                string hash = Console.ReadLine();

                if (hash.Length != 32)
                {
                    WriteLine("Hash is not 32 Characters!", ConsoleColor.Red);
                    continue;
                }

                HttpClient client = new HttpClient();

                bool Success = false;
                for (int i = 0; i < 8; i++)
                {
                    string url = $"https://c{i.ToString()}.rbxcdn.com/{hash}";
                    WriteLine($"Trying {url}", ConsoleColor.DarkMagenta);

                    var response = await client.GetAsync(url);
                    switch (response.StatusCode)
                    {
                        case (HttpStatusCode)200:
                            {
                                WriteLine("Server responded with 200!", ConsoleColor.DarkGreen);
                                WriteLine("\nWhat would you like the file to be named? (Leave blank to use hash)", ConsoleColor.Blue);
                                string RawInput = Console.ReadLine();
                                string Filename = string.IsNullOrEmpty(RawInput) ? hash : RawInput;
                                string path = Path.Combine(RobloxCDN, Filename);
                                using (var fs = new FileStream(path, FileMode.CreateNew))
                                {
                                    await response.Content.CopyToAsync(fs);
                                }
                                WriteLine($"Download Successful! (Path: {path})", ConsoleColor.Green);
                                Success = true;
                                goto BreakOutOfLoop;
                            }
                        case (HttpStatusCode)403:
                            continue;
                        default:
                            WriteLine($"Got {(int)response.StatusCode}", ConsoleColor.DarkRed);
                            continue;
                    }
                }
                BreakOutOfLoop:
                if (!Success)
                {
                    WriteLine("CDN Server could not be found!", ConsoleColor.Red);
                }
                else Success = false;
                continue;
            }
        }

        // https://stackoverflow.com/questions/10667012/getting-downloads-folder-in-c/21953690
        static string GetDownloadFolderPath()
        {
            return Registry.GetValue(@"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders", "{374DE290-123F-4565-9164-39C4925E467B}", String.Empty).ToString();
        }


        static public void WriteLine(string message, ConsoleColor color)
        {
            Console.ForegroundColor = color;
            Console.WriteLine(message);
            Console.ResetColor();
        }
    }
}