Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Net / System / Net / Mail / SmtpDigestAuthenticationModule.cs / 1305376 / SmtpDigestAuthenticationModule.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Net.Mail { using System; using System.Collections; using System.IO; using System.Net; using System.Security.Permissions; using System.Security.Authentication.ExtendedProtection; // #if MAKE_MAILCLIENT_PUBLIC internal #else internal #endif class SmtpDigestAuthenticationModule : ISmtpAuthenticationModule { Hashtable sessions = new Hashtable(); internal SmtpDigestAuthenticationModule() { } #region ISmtpAuthenticationModule Members // Security this method will access NetworkCredential properties that demand UnmanagedCode and Environment Permission [EnvironmentPermission(SecurityAction.Assert, Unrestricted = true)] [SecurityPermission(SecurityAction.Assert, Flags = SecurityPermissionFlag.UnmanagedCode)] public Authorization Authenticate(string challenge, NetworkCredential credential, object sessionCookie, string spn, ChannelBinding channelBindingToken) { lock (this.sessions) { NTAuthentication clientContext = this.sessions[sessionCookie] as NTAuthentication; if (clientContext == null) { if (credential == null){ return null; } // this.sessions[sessionCookie] = clientContext = new NTAuthentication(false, "WDigest", credential, spn, ContextFlags.Connection, channelBindingToken); } string resp = clientContext.GetOutgoingBlob(challenge); if (!clientContext.IsCompleted) { return new Authorization(resp, false); } else { this.sessions.Remove(sessionCookie); return new Authorization(resp, true); } } } public string AuthenticationType { get { return "WDigest"; } } public void CloseContext(object sessionCookie) { // This is a no-op since the context is not // kept open by this module beyond auth completion. } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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