ApproveString.cs

using System;
using System.Reflection;
 
namespace Waher.Security.CallStack
{
    public class ApproveString : CallStackCheck
    {
        private readonly string s;
 
        public ApproveString(string String)
        {
            this.s = String;
        }
 
        public override bool? Check(FrameInformation Frame)
        {
            if (Frame.TypeName + "." + Frame.Method.Name == this.s ||
                Frame.TypeName == this.s ||
                Frame.AssemblyName == this.s)
            {
                return true;
            }
 
            Type T = Frame.Type;
            while (!(T is null) && T.Attributes.HasFlag(TypeAttributes.NestedPrivate))
            {
                T = T.DeclaringType;
 
                if (T.FullName + "." + Frame.Method.Name == this.s ||
                    T.FullName == this.s)
                {
                    return true;
                }
            }
 
            return null;
        }
    }
}