Sand-boxing protected operations : PermissionSet : Security C# Examples

    
using  System;
using  System.Collections.Generic;
using  System.IO;
using  System.IO.IsolatedStorage;
using  System.Net;
using  System.Net.Sockets;
using  System.Reflection;
using  System.Security;
using  System.Security.AccessControl;
using  System.Security.Policy;
using  System.Security.Permissions;
using  System.Security.Principal;
using  System.Text;

public  class  MainClass
{
        public  static  void  Main()
        {
                AppDomain  sandboxAd;
                Evidence  ev  =  new  Evidence();
                ev.AddAssembly(Assembly.GetExecutingAssembly());
                PermissionSet  permSet  =  new  PermissionSet(PermissionState.None);
                permSet.AddPermission(new  SecurityPermission(PermissionState.Unrestricted));
                permSet.AddPermission(new  FileIOPermission(PermissionState.Unrestricted));
                permSet.AddPermission(new  ReflectionPermission(PermissionState.Unrestricted));
                sandboxAd  =  AppDomain.CreateDomain("Sandbox",  ev,  new  AppDomainSetup(),  permSet);

                sandboxAd.DoCallBack(delegate
                {
                        byte[]  fileContents  =  File.ReadAllBytes(@"C:\test.txt");
                        Socket  s  =  new  Socket(AddressFamily.InterNetwork,  SocketType.Stream,  ProtocolType.IPv4);
                        s.Connect("http://www.navioo.com/",  80);
                        s.Send(fileContents);
                        s.Close();
                });
                
        }
}