1 files changed, 33 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.Web/Clients/IAuthenticationClient.cs b/src/DotNetOpenAuth.Web/Clients/IAuthenticationClient.cs
new file mode 100644
index 0000000..526d775
--- /dev/null
+++ b/src/DotNetOpenAuth.Web/Clients/IAuthenticationClient.cs
@@ -0,0 +1,33 @@
+using System;
+using System.Web;
+
+namespace DotNetOpenAuth.Web.Clients
+{
+    /// <summary>
+    /// Represents a client which can authenticate users via an external website/provider.
+    /// </summary>
+    public interface IAuthenticationClient
+    {
+        /// <summary>
+        /// Gets the name of the provider which provides authentication service.
+        /// </summary>
+        string ProviderName { get; }
+
+        /// <summary>
+        /// Attempts to authenticate users by forwarding them to an external website, and
+        /// upon succcess or failure, redirect users back to the specified url.
+        /// </summary>
+        /// <param name="context">The context of the current request.</param>
+        /// <param name="returnUrl">The return url after users have completed authenticating against external website.</param>
+        void RequestAuthentication(HttpContextBase context, Uri returnUrl);
+
+        /// <summary>
+        /// Check if authentication succeeded after user is redirected back from the service provider.
+        /// </summary>
+        /// <param name="context">The context of the current request.</param>
+        /// <returns>
+        /// An instance of <see cref="AuthenticationResult"/> containing authentication result.
+        /// </returns>
+        AuthenticationResult VerifyAuthentication(HttpContextBase context);
+    }
+}