BlockIPAddr/Program.cs

using Microsoft.Data.SqlClient;
using BlockIPAddr.ClassObj;
using static BlockIPAddr.ClassObj.ANSI;

namespace BlockIPAddr;

internal class Program
{
  [STAThread]
  static void Main(string[] args)
  {
    ConsoleColorization.Initialize();   // Allow ANSI in the console

    if (args.Length > 0)
    {
      Console.WriteLine();
      using (var cn = new SqlConnection(kmCommonLibsCore.Constants.cnPortal))
      using (var cm = new SqlCommand("dbo.[BlockIPAddrInFirewall]", cn) { CommandType = System.Data.CommandType.StoredProcedure })
      {
        cn.Open();
        cm.Parameters.Add("@ip4", System.Data.SqlDbType.VarChar, 30);
        foreach (string arg in args)
        {
          string rv;
          string color = string.Empty;

          cm.Parameters["@ip4"].Value = arg.Trim();
          rv = cm.ExecuteScalar().ToString() ?? string.Empty;

          color = rv.StartsWith("!!") ? ANSI.fgBrightRed : ANSI.fgBrightYellow;
          Console.WriteLine("Result: {1}{0}{2}", rv, color, ANSI.fgReset);
        }
      }
    }
    else
    {
      while (true)
      {
        string ip4 = string.Empty;
        Console.Write("\nEnter an IP Address to block (can include slash-notation) or Enter to Exit: ");
        ip4 = Console.ReadLine();
        if (string.IsNullOrWhiteSpace(ip4))
          break;

        using (var cn = new SqlConnection(kmCommonLibsCore.Constants.cnPortal))
        using (var cm = new SqlCommand("dbo.[BlockIPAddrInFirewall]", cn) { CommandType = System.Data.CommandType.StoredProcedure })
        {
          string color = string.Empty;
          string rv = string.Empty;
          cn.Open();
          cm.Parameters.Add("@ip4", System.Data.SqlDbType.VarChar, 30).Value = ip4;
          rv = cm.ExecuteScalar().ToString() ?? string.Empty;

          color = rv.StartsWith("!!") ? ANSI.fgBrightRed : ANSI.fgBrightYellow;
          Console.WriteLine("\nResult: {1}{0}{2}", rv, color, ANSI.fgReset);
        }
      }
    }
  }
}