1 files changed, 102 insertions, 0 deletions
diff --git a/Gestor.Common/Gestor.Common.Helpers/Functions.cs b/Gestor.Common/Gestor.Common.Helpers/Functions.cs
new file mode 100644
index 0000000..b9f88cf
--- /dev/null
+++ b/Gestor.Common/Gestor.Common.Helpers/Functions.cs
@@ -0,0 +1,102 @@
+using System;
+using System.Diagnostics;
+using System.Linq;
+using System.Net;
+using System.Net.Sockets;
+using Gestor.Common.Validation;
+
+namespace Gestor.Common.Helpers;
+
+public class Functions
+{
+	public static Stopwatch Stopwatch;
+
+	public static DateTime? StartTime;
+
+	public static int Compare(string original, string modified)
+	{
+		if (original == null)
+		{
+			original = "";
+		}
+		if (modified == null)
+		{
+			modified = "";
+		}
+		string text = original.ToLongNullable().ToString();
+		if (!string.IsNullOrWhiteSpace(text))
+		{
+			original = text;
+		}
+		text = modified.ToLongNullable().ToString();
+		if (!string.IsNullOrWhiteSpace(text))
+		{
+			modified = text;
+		}
+		int length = original.Length;
+		int length2 = modified.Length;
+		int[,] array = new int[length + 1, length2 + 1];
+		for (int i = 0; i <= length; i++)
+		{
+			array[i, 0] = i;
+		}
+		for (int j = 0; j <= length2; j++)
+		{
+			array[0, j] = j;
+		}
+		for (int k = 1; k <= length; k++)
+		{
+			for (int l = 1; l <= length2; l++)
+			{
+				int num = ((modified[l - 1] != original[k - 1]) ? 1 : 0);
+				int[] source = new int[3]
+				{
+					array[k - 1, l] + 1,
+					array[k, l - 1] + 1,
+					array[k - 1, l - 1] + num
+				};
+				array[k, l] = source.Min();
+				if (k > 1 && l > 1 && original[k - 1] == modified[l - 2] && original[k - 2] == modified[l - 1])
+				{
+					array[k, l] = Math.Min(array[k, l], array[k - 2, l - 2] + num);
+				}
+			}
+		}
+		return array[length, length2];
+	}
+
+	public static DateTime GetNetworkTime()
+	{
+		try
+		{
+			if (StartTime.HasValue)
+			{
+				return StartTime.Value.AddMilliseconds(Stopwatch.ElapsedMilliseconds);
+			}
+			byte[] array = new byte[48];
+			array[0] = 27;
+			IPEndPoint remoteEP = new IPEndPoint(Dns.GetHostEntry("time.google.com").AddressList.First((IPAddress a) => a.AddressFamily == AddressFamily.InterNetwork), 123);
+			using (Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp))
+			{
+				socket.Connect(remoteEP);
+				socket.ReceiveTimeout = 3000;
+				socket.Send(array);
+				socket.Receive(array);
+				socket.Close();
+			}
+			ulong num = ((ulong)array[40] << 24) | ((ulong)array[41] << 16) | ((ulong)array[42] << 8) | array[43];
+			ulong num2 = ((ulong)array[44] << 24) | ((ulong)array[45] << 16) | ((ulong)array[46] << 8) | array[47];
+			ulong num3 = num * 1000 + num2 * 1000 / 4294967296L;
+			DateTime value = new DateTime(1900, 1, 1).AddMilliseconds((long)num3).ToLocalTime();
+			StartTime = value;
+			Stopwatch = Stopwatch.StartNew();
+			return StartTime.Value;
+		}
+		catch (Exception)
+		{
+			StartTime = DateTime.Now;
+			Stopwatch = Stopwatch.StartNew();
+			return StartTime.Value;
+		}
+	}
+}