provider model

Properties/AssemblyInfo.cs

@@ -32,5 +32,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyFileVersion("1.0.0.0")]
+[assembly: AssemblyVersion("1.0.0.1")]
+[assembly: AssemblyFileVersion("1.0.0.1")]

SaslConfiguration.cs

@@ -11,7 +11,7 @@ public class SaslConfigurationSection : ConfigurationSection {
 		/// saslProvider elements.
 		/// </summary>
 		[ConfigurationProperty("saslProviders", IsRequired = false,
-			IsKey = false, IsDefaultCollection = true)]
+			IsKey = false, IsDefaultCollection = false)]
 		public SaslProviderCollection SaslProviders {
 			get {
 				return ((SaslProviderCollection) base["saslProviders"]);

SaslFactory.cs

@@ -1,19 +1,29 @@
 using System;
 using System.Collections.Generic;
+using System.Configuration;
 
 namespace S22.Sasl {
 	/// <summary>
 	/// A factory class for producing instances of Sasl mechanisms.
 	/// </summary>
-	internal static class SaslFactory {
+	public static class SaslFactory {
 		/// <summary>
 		/// A dictionary of Sasl mechanisms registered with the factory class.
 		/// </summary>
-		static Dictionary<string, Type> Mechanisms {
+		static Dictionary<string, Type> mechanisms {
 			get;
 			set;
 		}
 
+        /// <summary>
+        /// A list of the names of all available mechanisms.
+        /// </summary>
+        public static IEnumerable<string> Mechanisms {
+            get {
+                return mechanisms.Keys;
+            }
+        }
+
 		/// <summary>
 		/// Creates an instance of the Sasl mechanism with the specified
 		/// name.
@@ -26,11 +36,11 @@ internal static class SaslFactory {
 		/// specified name is not registered with Sasl.SaslFactory.</exception>
 		public static SaslMechanism Create(string name) {
 			name.ThrowIfNull("name");
-			if (!Mechanisms.ContainsKey(name)) {
+			if (!mechanisms.ContainsKey(name)) {
 				throw new SaslException("A Sasl mechanism with the specified name " +
 					"is not registered with Sasl.SaslFactory.");
 			}
-			Type t = Mechanisms[name];
+			Type t = mechanisms[name];
 			object o = Activator.CreateInstance(t, true);
 			return o as SaslMechanism;
 		}
@@ -57,7 +67,7 @@ internal static class SaslFactory {
 					"of Sasl.SaslMechanism");
 			}
 			try {
-				Mechanisms.Add(name, t);
+                mechanisms.Add(name, t);
 			} catch (Exception e) {
 				throw new SaslException("Registration of Sasl mechanism failed.", e);
 			}
@@ -67,17 +77,26 @@ internal static class SaslFactory {
 		/// Static class constructor. Initializes static properties.
 		/// </summary>
 		static SaslFactory() {
-			Mechanisms = new Dictionary<string, Type>(
-				StringComparer.InvariantCultureIgnoreCase);
-
-			// Could be moved to App.config to support SASL "plug-in" mechanisms.
-			var list = new Dictionary<string, Type>() {
-				{ "PLAIN", typeof(Sasl.Mechanisms.SaslPlain) },
-				{ "DIGEST-MD5", typeof(Sasl.Mechanisms.SaslDigestMd5) },
-				{ "SCRAM-SHA-1", typeof(Sasl.Mechanisms.SaslScramSha1) },
-			};
-			foreach (string key in list.Keys)
-				Mechanisms.Add(key, list[key]);
+            mechanisms = new Dictionary<string, Type>(
+                StringComparer.InvariantCultureIgnoreCase) {
+                { "Plain", typeof(Mechanisms.SaslPlain) },
+                { "Cram-Md5", typeof(Mechanisms.SaslCramMd5) },
+                { "Digest-Md5", typeof(Mechanisms.SaslDigestMd5) },
+                { "Scram-Sha-1", typeof(Mechanisms.SaslScramSha1) },
+                { "Ntlm", typeof(Mechanisms.SaslNtlm) },
+                { "Ntlmv2", typeof(Mechanisms.SaslNtlmv2) },
+                { "OAuth", typeof(Mechanisms.SaslOAuth) },
+                { "OAuth2", typeof(Mechanisms.SaslOAuth2) },
+                { "Srp", typeof(Mechanisms.SaslSrp) }
+            };            
+            // Register any custom mechanisms configured in the app.config.
+            var configSection = ConfigurationManager.GetSection("saslConfigSection")
+                as SaslConfigurationSection;
+            if (configSection != null) {                
+                foreach(SaslProvider provider in configSection.SaslProviders) {
+                    mechanisms.Add(provider.Name, Type.GetType(provider.Type));
+                }
+            }
 		}
 	}
 }

SaslMechanism.cs

@@ -6,7 +6,7 @@ namespace S22.Sasl {
 	/// The abstract base class from which all classes implementing a Sasl
 	/// authentication mechanism must derive.
 	/// </summary>
-	internal abstract class SaslMechanism {
+	public abstract class SaslMechanism {
 		/// <summary>
 		/// IANA name of the authentication mechanism.
 		/// </summary>
@@ -48,7 +48,7 @@ internal abstract class SaslMechanism {
 
 		/// <summary>
 		/// </summary>
-		internal SaslMechanism() {
+		public SaslMechanism() {
 			Properties = new Dictionary<string, object>();
 		}
 

Tests/SrpTest.cs

@@ -85,10 +85,9 @@ public class SrpTest {
 		[TestCategory("Srp")]
 		public void DeserializeServerSecondMessage() {
 			ServerMessage2 m = ServerMessage2.Deserialize(serverMessage2);
-
 			Assert.IsTrue(m.Proof.SequenceEqual(expectedServerProof));
 			Assert.IsTrue(m.InitialVector.SequenceEqual(expectedInitialVector));
-			Assert.AreEqual<string>(String.Empty, m.SessionId);
+			Assert.AreEqual(string.Empty, m.SessionId);
 			Assert.AreEqual<uint>(0, m.Ttl);
 		}
 
@@ -96,8 +95,10 @@ public class SrpTest {
 		/// Verifies the various parts of a sample authentication exchange
 		/// (Challenge generated by the Cyrus Sasl library).
 		/// </summary>
-		/// <remarks>The exchange was generated with the authorization id
-		/// (authId) set to the same value as the username.</remarks>
+		/// <remarks>
+        /// The exchange was generated with the authorization id (authId) set to the same value
+        /// as the username.
+        /// </remarks>
 		[TestMethod]
 		[TestCategory("Srp")]
 		public void VerifyAuthenticationExchange() {
@@ -109,16 +110,14 @@ public class SrpTest {
 			// Ensure the expected client initial-response is generated.
 			byte[] clientResponse = m.GetResponse(new byte[0]);
 			Assert.IsTrue(clientResponse.SequenceEqual(expectedClientFirst));
-
 			// Hand the server-challenge to the client and verify the expected
 			// client-response is generated.
 			clientResponse = m.GetResponse(serverFirst);
 			Assert.IsTrue(clientResponse.SequenceEqual(expectedClientSecond));
-
 			// Finally, hand the server-evidence to the client and verify the client
 			// responds with the empty string which concludes authentication.
 			clientResponse = m.GetResponse(serverSecond);
-			Assert.AreEqual<int>(0, clientResponse.Length);
+			Assert.AreEqual(0, clientResponse.Length);
 		}
 
 		#region Server Message 1