Rename Manager

2026-10-23 05:35:00 +03:00 · 2025-08-17 17:31:55 +08:00
parent 2060ac18fd
commit d5c50ef27c
74 changed files with 383 additions and 383 deletions
@@ -0,0 +1,117 @@
+using System.Net.Sockets;
+using System.Text;
+
+namespace ServiceLib.Manager;
+
+public class PacManager
+{
+    private static readonly Lazy<PacManager> _instance = new(() => new PacManager());
+    public static PacManager Instance => _instance.Value;
+
+    private string _configPath;
+    private int _httpPort;
+    private int _pacPort;
+    private TcpListener? _tcpListener;
+    private byte[] _writeContent;
+    private bool _isRunning;
+    private bool _needRestart = true;
+
+    public async Task StartAsync(string configPath, int httpPort, int pacPort)
+    {
+        _needRestart = configPath != _configPath || httpPort != _httpPort || pacPort != _pacPort || !_isRunning;
+
+        _configPath = configPath;
+        _httpPort = httpPort;
+        _pacPort = pacPort;
+
+        await InitText();
+
+        if (_needRestart)
+        {
+            Stop();
+            RunListener();
+        }
+    }
+
+    private async Task InitText()
+    {
+        var path = Path.Combine(_configPath, "pac.txt");
+
+        // Delete the old pac file
+        if (File.Exists(path) && Utils.GetFileHash(path).Equals("b590c07280f058ef05d5394aa2f927fe"))
+        {
+            File.Delete(path);
+        }
+
+        if (!File.Exists(path))
+        {
+            var pac = EmbedUtils.GetEmbedText(Global.PacFileName);
+            await File.AppendAllTextAsync(path, pac);
+        }
+
+        var pacText =
+            (await File.ReadAllTextAsync(path)).Replace("__PROXY__", $"PROXY 127.0.0.1:{_httpPort};DIRECT;");
+
+        var sb = new StringBuilder();
+        sb.AppendLine("HTTP/1.0 200 OK");
+        sb.AppendLine("Content-type:application/x-ns-proxy-autoconfig");
+        sb.AppendLine("Connection:close");
+        sb.AppendLine("Content-Length:" + Encoding.UTF8.GetByteCount(pacText));
+        sb.AppendLine();
+        sb.Append(pacText);
+        _writeContent = Encoding.UTF8.GetBytes(sb.ToString());
+    }
+
+    private void RunListener()
+    {
+        _tcpListener = TcpListener.Create(_pacPort);
+        _isRunning = true;
+        _tcpListener.Start();
+        Task.Factory.StartNew(async () =>
+        {
+            while (_isRunning)
+            {
+                try
+                {
+                    if (!_tcpListener.Pending())
+                    {
+                        await Task.Delay(10);
+                        continue;
+                    }
+
+                    var client = await _tcpListener.AcceptTcpClientAsync();
+                    await Task.Run(() => WriteContent(client));
+                }
+                catch
+                {
+                    // ignored
+                }
+            }
+        }, TaskCreationOptions.LongRunning);
+    }
+
+    private void WriteContent(TcpClient client)
+    {
+        var stream = client.GetStream();
+        stream.Write(_writeContent, 0, _writeContent.Length);
+        stream.Flush();
+    }
+
+    public void Stop()
+    {
+        if (_tcpListener == null)
+        {
+            return;
+        }
+        try
+        {
+            _isRunning = false;
+            _tcpListener.Stop();
+            _tcpListener = null;
+        }
+        catch
+        {
+            // ignored
+        }
+    }
+}