1 files changed, 93 insertions, 0 deletions
diff --git a/Emby.Server.Implementations/IO/SharpCifs/Smb/NtlmAuthenticator.cs b/Emby.Server.Implementations/IO/SharpCifs/Smb/NtlmAuthenticator.cs
new file mode 100644
index 000000000..853364f8e
--- /dev/null
+++ b/Emby.Server.Implementations/IO/SharpCifs/Smb/NtlmAuthenticator.cs
@@ -0,0 +1,93 @@
+// This code is derived from jcifs smb client library <jcifs at samba dot org>
+// Ported by J. Arturo <webmaster at komodosoft dot net>
+//  
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+// 
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+// 
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+namespace SharpCifs.Smb
+{
+	/// <summary>This class can be extended by applications that wish to trap authentication related exceptions and automatically retry the exceptional operation with different credentials.
+	/// 	</summary>
+	/// <remarks>This class can be extended by applications that wish to trap authentication related exceptions and automatically retry the exceptional operation with different credentials. Read <a href="../../../authhandler.html">jCIFS Exceptions and NtlmAuthenticator</a> for complete details.
+	/// 	</remarks>
+	public abstract class NtlmAuthenticator
+	{
+		private static NtlmAuthenticator _auth;
+
+		private string _url;
+
+		private SmbAuthException _sae;
+
+		private void Reset()
+		{
+			_url = null;
+			_sae = null;
+		}
+
+		/// <summary>Set the default <tt>NtlmAuthenticator</tt>.</summary>
+		/// <remarks>Set the default <tt>NtlmAuthenticator</tt>. Once the default authenticator is set it cannot be changed. Calling this metho again will have no effect.
+		/// 	</remarks>
+		public static void SetDefault(NtlmAuthenticator a)
+		{
+			lock (typeof(NtlmAuthenticator))
+			{
+				if (_auth != null)
+				{
+					return;
+				}
+				_auth = a;
+			}
+		}
+
+		protected internal string GetRequestingUrl()
+		{
+			return _url;
+		}
+
+		protected internal SmbAuthException GetRequestingException()
+		{
+			return _sae;
+		}
+
+		/// <summary>Used internally by jCIFS when an <tt>SmbAuthException</tt> is trapped to retrieve new user credentials.
+		/// 	</summary>
+		/// <remarks>Used internally by jCIFS when an <tt>SmbAuthException</tt> is trapped to retrieve new user credentials.
+		/// 	</remarks>
+		public static NtlmPasswordAuthentication RequestNtlmPasswordAuthentication(string
+			 url, SmbAuthException sae)
+		{
+			if (_auth == null)
+			{
+				return null;
+			}
+			lock (_auth)
+			{
+				_auth._url = url;
+				_auth._sae = sae;
+				return _auth.GetNtlmPasswordAuthentication();
+			}
+		}
+
+		/// <summary>An application extending this class must provide an implementation for this method that returns new user credentials try try when accessing SMB resources described by the <tt>getRequestingURL</tt> and <tt>getRequestingException</tt> methods.
+		/// 	</summary>
+		/// <remarks>
+		/// An application extending this class must provide an implementation for this method that returns new user credentials try try when accessing SMB resources described by the <tt>getRequestingURL</tt> and <tt>getRequestingException</tt> methods.
+		/// If this method returns <tt>null</tt> the <tt>SmbAuthException</tt> that triggered the authenticator check will simply be rethrown. The default implementation returns <tt>null</tt>.
+		/// </remarks>
+		protected internal virtual NtlmPasswordAuthentication GetNtlmPasswordAuthentication
+			()
+		{
+			return null;
+		}
+	}
+}