ProxyAuthentication.cs

using System.IO;
using System.Runtime.InteropServices;
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;

namespace SeleniumProxyAuthentication
{
    /// <summary>
    /// Auth Proxy For Chrome
    /// </summary>
    public static class ProxyAuthentication
    {
        /// <summary>
        /// Add Proxy With Extension To Chrome Option (Chrome Only Support Http Auth Proxies (!Didn't Test It With Socks4 Auth Proxies))
        /// </summary>
        /// <param name="browserOption">You Can Use Edge or Chrome for now</param>
        /// <param name="proxy">Your Proxy With This Format host:port or host:port:user:pass as string</param>
        /// <param name="crxManifest">Edit Chrome Extension Manifest File (Leave it Empty If You Don't Want To Change It)</param>
        public static void AddProxyAuthenticationExtension<T>(this T browserOption, Proxy proxy, [Optional] CrxManifest crxManifest, bool pack = true)
        {
            //easy set if there is no auth proxy
            //if (!proxy.HasCredential)
            //{
            //    (browserOption as ChromeOptions)?.AddArgument($"--proxy-server={GenerateCrx.GetScheme(proxy.ProxyProtocol)}://{proxy.Host}:{proxy.Port}");
            //    return;
            //}

            var cachePath = Utilities.GetCachePath();

            var tempFolder = Utilities.GetTempFolder(cachePath, proxy);

            var crxDetailsFolder = Utilities.GetCrxDetailsFolder(tempFolder);

            var manifestLocation = Path.Combine(crxDetailsFolder, "manifest.json");
            var backgroundLocation = Path.Combine(crxDetailsFolder, "background.js");

            Utilities.WriteDetailsFiles(crxManifest, manifestLocation, backgroundLocation, proxy);

            if (browserOption is ChromeOptions chromeOptions)
            {
                if (pack)
                {
                    chromeOptions.AddExtension(Utilities.CreateExtension(tempFolder, crxDetailsFolder));
                }
                else
                {
                    chromeOptions.AddArgument($"--load-extension={crxDetailsFolder}");
                }
            }
        }
        /// <summary>
        /// Delete All Files That Made By Extensions
        /// </summary>
        /// <param name="driverOptions"></param>
        public static void DeleteExtensionsCache(this DriverOptions driverOptions)
        {
            var cacheFolder = Path.Combine(GenerateCrx.GetAppDataPath(), "ProxyAuthCache");
            if (Directory.Exists(cacheFolder))
                Directory.Delete(cacheFolder);
        }
    }
}