mcs/class/System.Web/System.Web.Profile/ProfileModule.cs

   1 //
   2 // System.Web.UI.WebControls.ProfileModule.cs
   3 //
   4 // Authors:
   5 //      Chris Toshok (toshok@ximian.com)
   6 //
   7 // (C) 2005 Novell, Inc (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System;
  30 using System.ComponentModel;
  31 using System.Web;
  32 using System.Web.Configuration;
  33 using System.Text;
  34
  35 namespace System.Web.Profile
  36 {
  37         public sealed class ProfileModule : IHttpModule
  38         {
  39                 static readonly object migrateAnonymousEvent = new object ();
  40                 static readonly object personalizeEvent = new object ();
  41                 static readonly object profileAutoSavingEvent = new object ();
  42
  43                 HttpApplication app;
  44                 ProfileBase profile;
  45                 string anonymousCookieName = null;
  46
  47                 EventHandlerList events = new EventHandlerList ();
  48
  49                 public event ProfileMigrateEventHandler MigrateAnonymous {
  50                         add { events.AddHandler (migrateAnonymousEvent, value); }
  51                         remove { events.RemoveHandler (migrateAnonymousEvent, value); }
  52                 }
  53
  54                 [MonoTODO ("implement event rising")]
  55                 public event ProfileEventHandler Personalize {
  56                         add { events.AddHandler (personalizeEvent, value); }
  57                         remove { events.RemoveHandler (personalizeEvent, value); }
  58                 }
  59
  60                 public event ProfileAutoSaveEventHandler ProfileAutoSaving {
  61                         add { events.AddHandler (profileAutoSavingEvent, value); }
  62                         remove { events.RemoveHandler (profileAutoSavingEvent, value); }
  63                 }
  64
  65                 public ProfileModule ()
  66                 {
  67                 }
  68
  69                 public void Dispose ()
  70                 {
  71                         app.EndRequest -= OnLeave;
  72                         app.PostMapRequestHandler -= OnEnter;
  73                 }
  74
  75                 public void Init (HttpApplication app)
  76                 {
  77                         this.app = app;
  78                         app.PostMapRequestHandler += OnEnter;
  79                         app.EndRequest += OnLeave;
  80
  81                         AnonymousIdentificationSection anonymousConfig =
  82                                 (AnonymousIdentificationSection) WebConfigurationManager.GetSection ("system.web/anonymousIdentification");
  83
  84                         if (anonymousConfig == null)
  85                                 return;
  86
  87                         anonymousCookieName = anonymousConfig.CookieName;
  88                 }
  89
  90                 void OnEnter (object o, EventArgs eventArgs)
  91                 {
  92                         if (!ProfileManager.Enabled)
  93                                 return;
  94
  95                         if (HttpContext.Current.Request.IsAuthenticated) {
  96                                 HttpCookie cookie = app.Request.Cookies [anonymousCookieName];
  97                                 if (cookie != null && (cookie.Expires != DateTime.MinValue && cookie.Expires > DateTime.Now)) {
  98                                         ProfileMigrateEventHandler eh = events [migrateAnonymousEvent] as ProfileMigrateEventHandler;
  99                                         if (eh != null) {
 100                                                 ProfileMigrateEventArgs e = new ProfileMigrateEventArgs (HttpContext.Current,
 101                                                         Encoding.Unicode.GetString (Convert.FromBase64String (cookie.Value)));
 102                                                 eh (this, e);
 103                                         }
 104
 105                                         HttpCookie newCookie = new HttpCookie (anonymousCookieName);
 106                                         newCookie.Path = app.Request.ApplicationPath;
 107                                         newCookie.Expires = new DateTime (1970, 1, 1);
 108                                         newCookie.Value = "";
 109                                         app.Response.AppendCookie (newCookie);
 110                                 }
 111                         }
 112                 }
 113
 114                 void OnLeave (object o, EventArgs eventArgs)
 115                 {
 116                         if (!ProfileManager.Enabled)
 117                                 return;
 118
 119                         if (!app.Context.ProfileInitialized)
 120                                 return;
 121
 122                         if (ProfileManager.AutomaticSaveEnabled) {
 123                                 profile = app.Context.Profile;
 124
 125                                 if (profile == null)
 126                                         return;
 127
 128                                 ProfileAutoSaveEventHandler eh = events [profileAutoSavingEvent] as ProfileAutoSaveEventHandler;
 129                                 if (eh != null) {
 130                                         ProfileAutoSaveEventArgs args = new ProfileAutoSaveEventArgs (app.Context);
 131                                         eh (this, args);
 132                                         if (!args.ContinueWithProfileAutoSave)
 133                                                 return;
 134                                 }
 135                                 profile.Save ();
 136                         }
 137                 }
 138         }
 139 }