ApproveRegex.cs

using System;
using System.Reflection;
using System.Text.RegularExpressions;
 
namespace Waher.Security.CallStack
{
    public class ApproveRegex : CallStackCheck
    {
        private readonly Regex regex;
 
        public ApproveRegex(Regex Regex)
        {
            this.regex = Regex;
        }
 
        public override bool? Check(FrameInformation Frame)
        {
            if (IsMatch(this.regex, Frame.TypeName + "." + Frame.Method.Name) ||
                IsMatch(this.regex, Frame.TypeName) ||
                IsMatch(this.regex, Frame.AssemblyName))
            {
                return true;
            }
 
            Type T = Frame.Type;
            while (!(T is null) && T.Attributes.HasFlag(TypeAttributes.NestedPrivate))
            {
                T = T.DeclaringType;
 
                if (IsMatch(this.regex, T.FullName + "." + Frame.Method.Name) ||
                    IsMatch(this.regex, T.FullName))
                {
                    return true;
                }
            }
 
            return null;
        }
 
        internal static bool IsMatch(Regex Regex, string s)
        {
            Match M = Regex.Match(s);
            return M.Success && M.Index == 0 && M.Length == s.Length;
        }
    }
}