1 files changed, 66 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.Messaging/Messaging/HostErrorException.cs b/src/DotNetOpenAuth.Messaging/Messaging/HostErrorException.cs
new file mode 100644
index 0000000..81691b0
--- /dev/null
+++ b/src/DotNetOpenAuth.Messaging/Messaging/HostErrorException.cs
@@ -0,0 +1,66 @@
+//-----------------------------------------------------------------------
+// <copyright file="HostErrorException.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.Messaging {
+	using System;
+	using System.Collections.Generic;
+	using System.Diagnostics.CodeAnalysis;
+	using System.Linq;
+	using System.Text;
+
+	/// <summary>
+	/// An exception to call out a configuration or runtime failure on the part of the
+	/// (web) application that is hosting this library.
+	/// </summary>
+	/// <remarks>
+	/// <para>This exception is used rather than <see cref="ProtocolException"/> for those errors
+	/// that should never be caught because they indicate a major error in the app itself
+	/// or its configuration.</para>
+	/// <para>It is an internal exception to assist in making it uncatchable.</para>
+	/// </remarks>
+	[SuppressMessage("Microsoft.Design", "CA1064:ExceptionsShouldBePublic", Justification = "We don't want this exception to be catchable.")]
+	[Serializable]
+	internal class HostErrorException : Exception {
+		/// <summary>
+		/// Initializes a new instance of the <see cref="HostErrorException"/> class.
+		/// </summary>
+		internal HostErrorException() {
+		}
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="HostErrorException"/> class.
+		/// </summary>
+		/// <param name="message">The message.</param>
+		internal HostErrorException(string message)
+			: base(message) {
+		}
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="HostErrorException"/> class.
+		/// </summary>
+		/// <param name="message">The message.</param>
+		/// <param name="inner">The inner exception.</param>
+		internal HostErrorException(string message, Exception inner)
+			: base(message, inner) {
+		}
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="HostErrorException"/> class.
+		/// </summary>
+		/// <param name="info">The <see cref="T:System.Runtime.Serialization.SerializationInfo"/> that holds the serialized object data about the exception being thrown.</param>
+		/// <param name="context">The <see cref="T:System.Runtime.Serialization.StreamingContext"/> that contains contextual information about the source or destination.</param>
+		/// <exception cref="T:System.ArgumentNullException">
+		/// The <paramref name="info"/> parameter is null.
+		/// </exception>
+		/// <exception cref="T:System.Runtime.Serialization.SerializationException">
+		/// The class name is null or <see cref="P:System.Exception.HResult"/> is zero (0).
+		/// </exception>
+		protected HostErrorException(
+		  System.Runtime.Serialization.SerializationInfo info,
+		  System.Runtime.Serialization.StreamingContext context)
+			: base(info, context) { }
+	}
+}