120 lines
3.7 KiB
C#
120 lines
3.7 KiB
C#
//
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// System.Web.Security.AnonymousIdentificationModule
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//
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// Authors:
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// Ben Maurer (bmaurer@users.sourceforge.net)
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// Chris Toshok (toshok@ximian.com)
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//
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// (C) 2003 Ben Maurer
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// Copyright (c) 2005 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.ComponentModel;
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using System.Web;
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using System.Web.Configuration;
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using System.Text;
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namespace System.Web.Security {
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public sealed class AnonymousIdentificationModule : IHttpModule {
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static readonly object creatingEvent = new object ();
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HttpApplication app;
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EventHandlerList events = new EventHandlerList ();
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public event AnonymousIdentificationEventHandler Creating {
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add { events.AddHandler (creatingEvent, value); }
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remove { events.RemoveHandler (creatingEvent, value); }
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}
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public static void ClearAnonymousIdentifier ()
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{
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if (Config == null || !Config.Enabled)
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/* XXX The user for the current request is anonymous */
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throw new NotSupportedException ();
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}
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public void Dispose ()
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{
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app.PostAuthenticateRequest -= OnEnter;
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app = null;
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}
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public void Init (HttpApplication app)
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{
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this.app = app;
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app.PostAuthenticateRequest += OnEnter;
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}
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[MonoTODO ("cookieless userid")]
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void OnEnter (object source, EventArgs eventArgs)
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{
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if (!Enabled)
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return;
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string anonymousID = null;
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HttpCookie cookie = app.Request.Cookies [Config.CookieName];
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if (cookie != null && (cookie.Expires == DateTime.MinValue || cookie.Expires > DateTime.Now)) {
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try {
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anonymousID = Encoding.Unicode.GetString (Convert.FromBase64String (cookie.Value));
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}
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catch { }
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}
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if (anonymousID == null) {
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AnonymousIdentificationEventHandler eh = events [creatingEvent] as AnonymousIdentificationEventHandler;
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if (eh != null) {
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AnonymousIdentificationEventArgs e = new AnonymousIdentificationEventArgs (HttpContext.Current);
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eh (this, e);
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anonymousID = e.AnonymousID;
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}
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if (anonymousID == null)
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anonymousID = Guid.NewGuid ().ToString ();
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HttpCookie newCookie = new HttpCookie (Config.CookieName);
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newCookie.Path = app.Request.ApplicationPath;
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newCookie.Expires = DateTime.Now + Config.CookieTimeout;
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newCookie.Value = Convert.ToBase64String (Encoding.Unicode.GetBytes (anonymousID));
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app.Response.AppendCookie (newCookie);
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}
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app.Request.AnonymousID = anonymousID;
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}
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public static bool Enabled {
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get {
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if (Config == null)
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return false;
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return Config.Enabled;
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}
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}
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static AnonymousIdentificationSection Config = (AnonymousIdentificationSection) WebConfigurationManager.GetSection ("system.web/anonymousIdentification");
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}
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}
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