FREE PortForward : 0.0.1 0.0.1

// Все права принадлежат дискорд сообществу https://discord.gg/VgNHPpNrz6
using Newtonsoft.Json;
using Oxide.Core;
using Oxide.Core.Libraries;
using Oxide.Core.Libraries.Covalence;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
using System.Text;
// TODO: Add support for additional router brands and firmware
// TODO: Fix port forwards not always being applied with DD-WRT
// TODO: Implement https preference when Oxide can support this
// TODO: Forward RCON port if enabled (need Covalence support for this)
namespace Oxide.Plugins {
    [Info("Port Forward", "Wulf/lukespragg", "0.0.1")]
    [Description("Automatic port forwarding for DD-WRT routers")]
    public class PortForward : CovalencePlugin {
#region Configuration
        private Configuration config;
        public class Configuration {
            [JsonProperty(PropertyName = "DD-WRT username (default is root)")]
            public string Username {
                get;
                set;
            }
            = "root";
            [JsonProperty(PropertyName = "DD-WRT password (default is admin)")]
            public string Password {
                get;
                set;
            }
            = "admin";
        }
        protected override void LoadConfig() {
            base.LoadConfig();
            try {
                config = Config.ReadObject<Configuration>();
                if (config == null) {
                    LoadDefaultConfig();
                }
            }
            catch {
                LoadDefaultConfig();
            }
            SaveConfig();
        }
        protected override void LoadDefaultConfig() {
            string configPath = $"{Interface.Oxide.ConfigDirectory}{Path.DirectorySeparatorChar}{Name}.json";
            LogWarning($"Could not load a valid configuration file, creating a new configuration file at {configPath}");
            config = new Configuration();
        }
        protected override void SaveConfig() => Config.WriteObject(config);
#endregion Configuration
#region Initialization
        private static Dictionary<string, string> headers;
        private static IPAddress localIp;
        private static IPAddress routerIp;
        private void OnServerInitialized() {
            localIp = GetLocalIp();
            routerIp = GetGateway();
            if (localIp == null || routerIp == null) {
                LogWarning("This server does not appear to be behind a router");
                return;
            }
            headers = new Dictionary<string, string> {
                ["Authorization"]
                = "Basic " + Convert.ToBase64String(Encoding.UTF8.GetBytes($"{config.Username}:{config.Password}")), ["Referer"] = $"http://{routerIp}/ForwardSpec.asp"
            }
            ;
            ToggleForward("on");
        }
        private void Unload() {
            ToggleForward("off");
        }
#endregion Initialization
#region Commands
        [Command("pf.net")]
        private void NetCommand(IPlayer player, string command, string[] args) {
            if (!player.IsServer) {
                return;
            }
            LogWarning($"Local IP address: {localIp}");
            LogWarning($"Router IP address: {routerIp}");
            LogWarning($"External IP address: {server.Address}");
            LogWarning($"Server port: {server.Port}");
            // TODO: Show RCON port
        }
        [Command("pf.toggle")]
        private void ToggleCommand(IPlayer player, string command, string[] args) {
            if (!player.IsServer) {
                return;
            }
            string state = args.Length > 0 ? args[0].ToLower() : "on";
            if (state != "on" && state != "off") {
                LogWarning("Please specify 'on' or 'off' state");
                return;
            }
            ToggleForward(state);
        }
#endregion Commands
#region The Magic
        private void ToggleForward(string state) {
            // Set form data to send
            string data = $"name0={covalence.Game}&pro0=both&ip0={localIp}&from0={server.Port}&to0={server.Port}" + $"&enable0={state}&forward_spec=13&submit_button=ForwardSpec&action=Apply";
            // Send web request to control panel
            webrequest.Enqueue($"http://{routerIp}/apply.cgi", data, (code, response) => {
                if (code == 400)  // TODO: Handle specific error messages
                {
                    LogWarning("Could not login to router control panel");
                }
                else if (code != 200 || response == null) {
                    LogWarning($"HTTP code: {code}");
                    LogWarning($"Response: {response}");
                }
                else {
                    LogWarning($"Toggled port {server.Port} forward {state} for {localIp}");
                }
            }
            , this, RequestMethod.POST, headers);
        }
#endregion The Magic
#region Helpers
        private static IPAddress GetGateway()  // TODO: Clean this up
        {
            return NetworkInterface.GetAllNetworkInterfaces().Where(n => n.OperationalStatus == OperationalStatus.Up).Where(n => n.NetworkInterfaceType != NetworkInterfaceType.Loopback).SelectMany(n => n.GetIPProperties()?.GatewayAddresses).Select(g => g?.Address).Where(a => a != null).Where(a => a.AddressFamily == AddressFamily.InterNetwork).FirstOrDefault(a => Array.FindIndex(a.GetAddressBytes(), b => b != 0) >= 0);
        }
        private static IPAddress GetLocalIp()  // TODO: Clean this up
        {
            return NetworkInterface.GetAllNetworkInterfaces().Where(n => n.OperationalStatus == OperationalStatus.Up).Where(n => n.NetworkInterfaceType == NetworkInterfaceType.Ethernet || n.NetworkInterfaceType == NetworkInterfaceType.Wireless80211).SelectMany(n => n.GetIPProperties()?.UnicastAddresses).Select(g => g?.Address).LastOrDefault(a => a?.AddressFamily == AddressFamily.InterNetwork);
        }
        // TODO: Create enum of protocols per game
#endregion Helpers
    }
}