1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
//
// System.Web.Security.AnonymousIdentificationModule
//
// Authors:
// Ben Maurer (bmaurer@users.sourceforge.net)
// Chris Toshok (toshok@ximian.com)
//
// (C) 2003 Ben Maurer
// Copyright (c) 2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.ComponentModel;
using System.Web;
using System.Web.Configuration;
using System.Text;
namespace System.Web.Security {
public sealed class AnonymousIdentificationModule : IHttpModule {
static readonly object creatingEvent = new object ();
HttpApplication app;
EventHandlerList events = new EventHandlerList ();
public event AnonymousIdentificationEventHandler Creating {
add { events.AddHandler (creatingEvent, value); }
remove { events.RemoveHandler (creatingEvent, value); }
}
public static void ClearAnonymousIdentifier ()
{
if (Config == null || !Config.Enabled)
/* XXX The user for the current request is anonymous */
throw new NotSupportedException ();
}
public void Dispose ()
{
app.PostAuthenticateRequest -= OnEnter;
app = null;
}
public void Init (HttpApplication app)
{
this.app = app;
app.PostAuthenticateRequest += OnEnter;
}
[MonoTODO ("cookieless userid")]
void OnEnter (object source, EventArgs eventArgs)
{
if (!Enabled)
return;
string anonymousID = null;
HttpCookie cookie = app.Request.Cookies [Config.CookieName];
if (cookie != null && (cookie.Expires == DateTime.MinValue || cookie.Expires > DateTime.Now)) {
try {
anonymousID = Encoding.Unicode.GetString (Convert.FromBase64String (cookie.Value));
}
catch { }
}
if (anonymousID == null) {
AnonymousIdentificationEventHandler eh = events [creatingEvent] as AnonymousIdentificationEventHandler;
if (eh != null) {
AnonymousIdentificationEventArgs e = new AnonymousIdentificationEventArgs (HttpContext.Current);
eh (this, e);
anonymousID = e.AnonymousID;
}
if (anonymousID == null)
anonymousID = Guid.NewGuid ().ToString ();
HttpCookie newCookie = new HttpCookie (Config.CookieName);
newCookie.Path = app.Request.ApplicationPath;
newCookie.Expires = DateTime.Now + Config.CookieTimeout;
newCookie.Value = Convert.ToBase64String (Encoding.Unicode.GetBytes (anonymousID));
app.Response.AppendCookie (newCookie);
}
app.Request.AnonymousID = anonymousID;
}
public static bool Enabled {
get {
if (Config == null)
return false;
return Config.Enabled;
}
}
static AnonymousIdentificationSection Config = (AnonymousIdentificationSection) WebConfigurationManager.GetSection ("system.web/anonymousIdentification");
}
}
|
