//------------------------------------------------------------------------------
// <copyright file="Permission.cs" company="Microsoft">
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// </copyright>                                                                
//------------------------------------------------------------------------------

/*
 * 
 * Copyright (c) 1998-1999, Microsoft Corporation
 * 
 */

namespace System.Web.Util {
    using System.Security.Permissions;
    using System.Security;
    using System.Data.SqlClient;
    
    static class Permission {
        internal static bool HasSqlClientPermission() {
            NamedPermissionSet  permissionset = HttpRuntime.NamedPermissionSet;
            
            // If we don't have a NamedPermissionSet, we're in full trust
            if (permissionset == null)
                return true;

            // Check that the user has unrestricted SqlClientPermission
            IPermission allowedPermission = permissionset.GetPermission(typeof(SqlClientPermission));

            if (allowedPermission == null) {
                return false;
            }
            
            IPermission askedPermission = null;
            try {
                askedPermission = new SqlClientPermission(PermissionState.Unrestricted);
            }
            catch {
                return false;
            }
            
            return askedPermission.IsSubsetOf(allowedPermission);
        }
        
    }
}