Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/Security/FormsIdentity.cs

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+//------------------------------------------------------------------------------
+// <copyright file="FormsIdentity.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+/*
+ * FormsIdentity
+ *
+ * Copyright (c) 1999 Microsoft Corporation
+ */
+
+namespace System.Web.Security {
+    using System.Collections.Generic;
+    using System.Runtime.InteropServices;
+    using System.Runtime.Serialization;
+    using System.Security;
+    using System.Security.Claims;
+    using System.Security.Permissions;
+
+    /// <devdoc>
+    ///    This class is an IIdentity derived class
+    ///    used by FormsAuthenticationModule. It provides a way for an application to
+    ///    access the cookie authentication ticket.
+    /// </devdoc>
+    [Serializable]
+    [ComVisible(false)]
+    public class FormsIdentity : ClaimsIdentity {
+      
+        /// <devdoc>
+        ///    The name of the identity (in this case, the
+        ///    passport user name).
+        /// </devdoc>
+        public  override String                       Name { get { return _Ticket.Name;}}
+
+        /// <devdoc>
+        ///    The type of the identity (in this case,
+        ///    "Forms").
+        /// </devdoc>
+        public  override String                       AuthenticationType { get { return "Forms";}}
+
+        /// <devdoc>
+        ///    Indicates whether or not authentication took
+        ///    place.
+        /// </devdoc>
+        public  override bool                         IsAuthenticated { get { return true;}}
+        
+        private FormsAuthenticationTicket _Ticket;
+
+        /// <devdoc>
+        ///    Returns the FormsAuthenticationTicket
+        ///    associated with the current request.
+        /// </devdoc>
+        public  FormsAuthenticationTicket   Ticket { get { return _Ticket;}}
+
+        public override IEnumerable<Claim> Claims
+        {
+            get
+            {
+                return base.Claims;
+            }
+        }
+
+        /// <devdoc>
+        ///    Constructor.
+        /// </devdoc>
+        public FormsIdentity (FormsAuthenticationTicket ticket) {
+            if (ticket == null)
+                throw new ArgumentNullException("ticket");
+            
+            _Ticket = ticket;
+
+            AddNameClaim();
+        }
+
+        /// <devdoc>
+        ///    Constructor.
+        /// </devdoc>
+        protected FormsIdentity(FormsIdentity identity)
+            : base(identity)
+        {
+            _Ticket = identity._Ticket;
+        }
+
+        /// <devdoc>
+        /// Returns a new instance of <see cref="FormsIdentity"/> with values copied from this object.
+        /// </devdoc>
+        public override ClaimsIdentity Clone()
+        {
+            return new FormsIdentity(this);
+        }
+
+        [OnDeserialized()]
+        private void OnDeserializedMethod(StreamingContext context)
+        {
+            // FormIdentities that have been deserialized from a .net 4.0 runtime, will not have any claims. 
+            // In this case add a name claim, otherwise assume it was deserialized.
+
+            bool claimFound = false;
+            foreach (Claim c in base.Claims)
+            {
+                claimFound = true;
+                break;
+            }
+
+            if (!claimFound)
+            {
+                AddNameClaim();
+            }
+        }
+
+        [SecuritySafeCritical]
+        private void AddNameClaim()
+        {
+            if (_Ticket != null && _Ticket.Name != null)
+            {
+                base.AddClaim(new Claim(base.NameClaimType, _Ticket.Name, ClaimValueTypes.String, "Forms", "Forms", this));
+            }
+        }
+    }
+}