1 files changed, 43 insertions, 0 deletions
diff --git a/samples/OpenIdProviderMvc/Code/AnonymousIdentifierProvider.cs b/samples/OpenIdProviderMvc/Code/AnonymousIdentifierProvider.cs
new file mode 100644
index 0000000..9ead7c1
--- /dev/null
+++ b/samples/OpenIdProviderMvc/Code/AnonymousIdentifierProvider.cs
@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+using DotNetOpenAuth.OpenId.Provider;
+using DotNetOpenAuth.OpenId;
+using System.Web.Security;
+using OpenIdProviderMvc.Models;
+
+namespace OpenIdProviderMvc.Code {
+	internal class AnonymousIdentifierProvider : AnonymousIdentifierProviderBase {
+		internal AnonymousIdentifierProvider()
+			: base(GetIdentifierBase("anon")) {
+		}
+
+		protected override byte[] GetHashSaltForLocalIdentifier(Identifier localIdentifier) {
+			// This is just a sample with no database... a real web app MUST return 
+			// a reasonable salt here and have that salt be persistent for each user.
+			var membership = (ReadOnlyXmlMembershipProvider)Membership.Provider;
+			string username = User.GetUserFromClaimedIdentifier(new Uri(localIdentifier));
+			string salt = membership.GetSalt(username);
+			return Convert.FromBase64String(salt);
+			////return AnonymousIdentifierProviderBase.GetNewSalt(5);
+		}
+
+		private static Uri GetIdentifierBase(string subPath) {
+			if (HttpContext.Current == null) {
+				throw new InvalidOperationException();
+			}
+
+			if (String.IsNullOrEmpty(subPath)) {
+				throw new ArgumentNullException("subPath");
+			}
+
+			string appPath = HttpContext.Current.Request.ApplicationPath;
+			if (!appPath.EndsWith("/")) {
+				appPath += "/";
+			}
+
+			return new Uri(HttpContext.Current.Request.Url, appPath + subPath + "/");
+		}
+	}
+}