Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.ServiceModel/System/ServiceModel/Security/RoleProviderPrincipal.cs

@@ -0,0 +1,40 @@
+//------------------------------------------------------------
+// Copyright (c) Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------
+
+namespace System.ServiceModel.Security
+{
+    using System.Runtime.CompilerServices;
+    using System.Security.Principal;
+    using System.ServiceModel;
+    using System.ServiceModel.Activation;
+    using System.Web.Security;
+
+    sealed class RoleProviderPrincipal : IPrincipal
+    {
+        object roleProvider;
+        ServiceSecurityContext securityContext;
+
+        public RoleProviderPrincipal(object roleProvider, ServiceSecurityContext securityContext)
+        {
+            this.roleProvider = roleProvider;
+            this.securityContext = securityContext;
+        }
+
+        public IIdentity Identity
+        {
+            get { return this.securityContext.PrimaryIdentity; }
+        }
+
+        [MethodImpl(MethodImplOptions.NoInlining)]
+        public bool IsInRole(string role)
+        {
+            RoleProvider roleProvider = (this.roleProvider as RoleProvider) ?? SystemWebHelper.GetDefaultRoleProvider();
+            if (roleProvider != null)
+            {
+                return roleProvider.IsUserInRole(this.securityContext.PrimaryIdentity.Name, role);
+            }
+            return false;
+        }
+    }
+}