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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading.Tasks;
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using System.IO;
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using System.Text.Json;
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using System.Text.Json.Nodes;
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using PCL.Core.App;
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using PCL.Core.Logging;
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using PCL.Core.Utils;
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namespace PCL.Core.Link.EasyTier;
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// ReSharper disable InconsistentNaming, CompareOfFloatsByEqualityOperator
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public enum ETConnectionType
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{
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Local,
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P2P,
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Relay,
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Unknown
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}
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public class ETPlayerInfo
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{
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public required bool IsHost { get; init; }
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/// <summary>
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/// EasyTier 设置的原始主机名
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/// </summary>
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public required string Hostname { get; init; }
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/// <summary>
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/// 显示的用户名，依次可能为自定义用户名、NAID 用户名
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/// </summary>
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public string? Username { get; init; }
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public string? McName { get; init; }
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/// <summary>
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/// 连接方式
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/// </summary>
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public ETConnectionType Cost { get; init; } = ETConnectionType.Unknown;
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/// <summary>
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/// 延迟 (ms)
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/// </summary>
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public double Ping { get; set; }
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/// <summary>
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/// 丢包率 (%)
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/// </summary>
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public double Loss { get; init; }
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public string? NatType { get; init; }
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/// <summary>
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/// 节点的 EasyTier 版本
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/// </summary>
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public string? ETVersion { get; init; }
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}
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public static class ETInfoProvider
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{
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public const string ETNetworkNamePrefix = "PCLCELobby";
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public const string ETNetworkSecretPrefix = "PCLCEETLOBBY2025";
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public const string ETVersion = Scaffolding.EasyTier.EasyTierMetadata.CurrentEasyTierVer;
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public static readonly string ETPath = Path.Combine(Paths.SharedLocalData, "EasyTier", ETVersion,
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"easytier-windows-" + (RuntimeInformation.OSArchitecture == Architecture.Arm64 ? "arm64" : "x86_64"));
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private static ETConnectionType _GetConnectionType(string cost)
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{
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if (IsContains("p2p")) return ETConnectionType.P2P;
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if (IsContains("relay")) return ETConnectionType.Relay;
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if (IsContains("local")) return ETConnectionType.Local;
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return ETConnectionType.Unknown;
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bool IsContains(string str) => cost.Contains(str, StringComparison.InvariantCultureIgnoreCase);
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}
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private static readonly Process _CliProcess = new() {
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StartInfo = new ProcessStartInfo
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{
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FileName = $"{ETPath}\\easytier-cli.exe",
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WorkingDirectory = ETPath,
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Arguments= $"--rpc-portal 127.0.0.1:{ETController.ETRpcPort} -o json peer",
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ErrorDialog = false,
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CreateNoWindow = true,
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WindowStyle = ProcessWindowStyle.Hidden,
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UseShellExecute = false,
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RedirectStandardOutput = true,
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RedirectStandardError = true,
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RedirectStandardInput = true,
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StandardOutputEncoding = Encoding.UTF8,
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StandardErrorEncoding = Encoding.UTF8
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},
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EnableRaisingEvents = true
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};
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/// <summary>
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/// 检查 EasyTier 状态，若状态正常则返回 0。
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/// </summary>
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/// <returns></returns>
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public static async Task<int> CheckETStatusAsync()
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{
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var retryCount = 0;
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var process = ETController.ETProcess;
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while (process is null && retryCount < 10)
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{
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await Task.Delay(1000);
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retryCount++;
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}
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if (process is not null)
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{
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while (ETController.Status != ETState.Ready)
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{
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var info = GetPlayerList().Item1?[0];
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if (info is null)
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{
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await Task.Delay(1000);
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continue;
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}
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if (info.Ping != 1000) { ETController.Status = ETState.Ready; }
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await Task.Delay(1000);
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}
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return 0;
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}
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return 1;
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}
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/// <summary>
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/// 获取 EasyTier 网络的成员列表和本地信息，若获取失败则均返回 null。
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/// </summary>
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/// <returns>Tuple(玩家列表, 本地信息)</returns>
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public static Tuple<List<ETPlayerInfo>?, ETPlayerInfo?> GetPlayerList()
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{
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try
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{
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_CliProcess.StartInfo.Arguments = $"--rpc-portal 127.0.0.1:{ETController.ETRpcPort} -o json peer";
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_CliProcess.Start();
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_CliProcess.WaitForExit(180);
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var output = _CliProcess.StandardOutput.ReadToEnd() + _CliProcess.StandardError.ReadToEnd();
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if (!_CliProcess.HasExited)
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{
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LogWrapper.Warn("Link", "Cli 获取结果超时(180 ms)，程序状态可能异常！");
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LogWrapper.Warn("Link", "获取到 EasyTier Cli 信息: \r\n" + output);
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}
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var playerList = new List<ETPlayerInfo>();
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ETPlayerInfo? localInfo = null;
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if (JsonCompat.ParseNode(output) is not JsonArray json)
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return new Tuple<List<ETPlayerInfo>?, ETPlayerInfo?>(null, null);
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foreach (var p in json)
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{
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var info = p.Deserialize<ETPeerInfo>(JsonCompat.SerializerOptions);
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if (info is null) { continue; }
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if (info.Hostname.StartsWith("PublicServer")) { continue; } // 服务器
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var hostnameSplit = info.Hostname.Split('|');
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var playerInfo = new ETPlayerInfo
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{
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IsHost = info.Hostname.StartsWith("H|") || info.Ipv4 == "10.144.144.1",
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Hostname = info.Hostname,
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Username = hostnameSplit.Length >= 2 ? hostnameSplit[1] : null,
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McName = hostnameSplit.Length == 3 ? hostnameSplit[2] : null,
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Cost = _GetConnectionType(info.Cost),
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Ping = Math.Round(Convert.ToDouble(info.Ping != "-" ? info.Ping : "0")),
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Loss = Math.Round(Convert.ToDouble(info.Loss != "-" ? info.Loss.Replace("%", "") : "0")),
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NatType = info.NatType,
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ETVersion = info.ETVersion
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};
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if (playerInfo.IsHost)
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{
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playerList.Insert(0, playerInfo); // 主机信息放在列表首位
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}
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else
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{
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playerList.Add(playerInfo);
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}
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if (playerInfo.Cost == ETConnectionType.Local)
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{
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localInfo = playerInfo;
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}
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}
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return new Tuple<List<ETPlayerInfo>?, ETPlayerInfo?>(playerList, localInfo);
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}
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catch (Exception ex)
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{
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LogWrapper.Error(ex,"Link", "获取 EasyTier 网络成员列表失败");
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return new Tuple<List<ETPlayerInfo>?, ETPlayerInfo?>(null, null);
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}
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}
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}
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