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94 lines
3.6 KiB
94 lines
3.6 KiB
// This code is derived from jcifs smb client library <jcifs at samba dot org>
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// Ported by J. Arturo <webmaster at komodosoft dot net>
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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namespace SharpCifs.Smb
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{
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/// <summary>This class can be extended by applications that wish to trap authentication related exceptions and automatically retry the exceptional operation with different credentials.
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/// </summary>
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/// <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.
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/// </remarks>
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public abstract class NtlmAuthenticator
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{
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private static NtlmAuthenticator _auth;
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private string _url;
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private SmbAuthException _sae;
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private void Reset()
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{
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_url = null;
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_sae = null;
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}
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/// <summary>Set the default <tt>NtlmAuthenticator</tt>.</summary>
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/// <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.
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/// </remarks>
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public static void SetDefault(NtlmAuthenticator a)
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{
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lock (typeof(NtlmAuthenticator))
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{
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if (_auth != null)
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{
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return;
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}
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_auth = a;
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}
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}
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protected internal string GetRequestingUrl()
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{
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return _url;
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}
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protected internal SmbAuthException GetRequestingException()
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{
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return _sae;
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}
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/// <summary>Used internally by jCIFS when an <tt>SmbAuthException</tt> is trapped to retrieve new user credentials.
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/// </summary>
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/// <remarks>Used internally by jCIFS when an <tt>SmbAuthException</tt> is trapped to retrieve new user credentials.
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/// </remarks>
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public static NtlmPasswordAuthentication RequestNtlmPasswordAuthentication(string
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url, SmbAuthException sae)
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{
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if (_auth == null)
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{
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return null;
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}
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lock (_auth)
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{
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_auth._url = url;
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_auth._sae = sae;
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return _auth.GetNtlmPasswordAuthentication();
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}
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}
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/// <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.
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/// </summary>
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/// <remarks>
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/// 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.
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/// 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>.
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/// </remarks>
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protected internal virtual NtlmPasswordAuthentication GetNtlmPasswordAuthentication
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()
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{
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return null;
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}
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}
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}
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