SocksProxyEndPoint.cs

using System.Diagnostics;
using System.Net;
using System.Threading.Tasks;
using Titanium.Web.Proxy.EventArguments;
using Titanium.Web.Proxy.Extensions;

namespace Titanium.Web.Proxy.Models;

/// <summary>
///     A proxy end point client is not aware of.
///     Useful when requests are redirected to this proxy end point through port forwarding via router.
/// </summary>
[DebuggerDisplay("SOCKS: {IpAddress}:{Port}")]
public class SocksProxyEndPoint : TransparentBaseProxyEndPoint
{
    /// <summary>
    ///     Initialize a new instance.
    /// </summary>
    /// <param name="ipAddress">Listening Ip address.</param>
    /// <param name="port">Listening port.</param>
    /// <param name="decryptSsl">Should we decrypt ssl?</param>
    public SocksProxyEndPoint(IPAddress ipAddress, int port, bool decryptSsl = true) : base(ipAddress, port,
        decryptSsl)
    {
        GenericCertificateName = "localhost";
    }

    /// <summary>
    ///     Name of the Certificate need to be sent (same as the hostname we want to proxy).
    ///     This is valid only when UseServerNameIndication is set to false.
    /// </summary>
    public override string GenericCertificateName { get; set; }

    /// <summary>
    ///     The hostname (or IP-address) of the fixed forwarding remote server.
    /// </summary>
    public override string OverrideForwardHostName { get; set; } = "";

    /// <summary>
    ///     The port of the fixed forwarding remote server.
    /// </summary>
    public override int OverrideForwardPort { get; set; } = -1;

    /// <summary>
    ///     Before Ssl authentication this event is fired.
    /// </summary>
    public event AsyncEventHandler<BeforeSslAuthenticateEventArgs>? BeforeSslAuthenticate;

    internal override async Task InvokeBeforeSslAuthenticate(ProxyServer proxyServer,
        BeforeSslAuthenticateEventArgs connectArgs, ExceptionHandler? exceptionFunc)
    {
        if (BeforeSslAuthenticate != null)
            await BeforeSslAuthenticate.InvokeAsync(proxyServer, connectArgs, exceptionFunc);
    }
}