mcs/class/System.Web/System.Web.Hosting/ApplicationHost.cs

   1 //
   2 // System.Web.Hosting.ApplicationHost
   3 //
   4 // Authors:
   5 //      Patrik Torstensson (Patrik.Torstensson@labs2.com)
   6 //      (class signature from Bob Smith <bob@thestuff.net> (C) )
   7 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30 using System;
  31 using System.Collections;
  32 using System.IO;
  33 using System.Runtime.Remoting;
  34 using System.Web.Util;
  35
  36 namespace System.Web.Hosting
  37 {
  38         public sealed class ApplicationHost
  39         {
  40                 internal class ConfigInitHelper : MarshalByRefObject
  41                 {
  42                         internal void InitConfig ()
  43                         {
  44                         }
  45                 }
  46
  47                 private ApplicationHost ()
  48                 {
  49                 }
  50
  51                 public static object CreateApplicationHost (Type hostType,
  52                                                             string virtualDir,
  53                                                             string physicalDir)
  54                 {
  55                         if (hostType == null)
  56                                 throw new ArgumentException ("hostType");
  57
  58                         if (virtualDir == null || virtualDir.Length == 0)
  59                                 throw new ArgumentException ("virtualDir");
  60
  61                         if (physicalDir == null || physicalDir.Length == 0)
  62                                 throw new ArgumentException ("physicalDir");
  63
  64                         if (physicalDir [physicalDir.Length - 1] != Path.DirectorySeparatorChar)
  65                                 physicalDir += Path.DirectorySeparatorChar;
  66
  67                         int nowInt = DateTime.Now.ToString ().GetHashCode ();
  68                         string nowHash = nowInt.ToString ("x");
  69                         nowInt += physicalDir.GetHashCode ();
  70                         string sum = nowInt.ToString ("x");
  71                         Hashtable hTable = new Hashtable ();
  72                         AppDomainSetup domainSetup = new AppDomainSetup();
  73
  74                         AppDomainFactory.PopulateDomainBindings (nowHash,
  75                                                                  sum,
  76                                                                  sum,
  77                                                                  physicalDir,
  78                                                                  virtualDir,
  79                                                                  domainSetup,
  80                                                                  hTable);
  81
  82                         AppDomain domain = AppDomain.CreateDomain (nowHash, null, domainSetup);
  83                         foreach (string key in hTable.Keys)
  84                                 domain.SetData (key, (string) hTable [key]);
  85
  86                         domain.SetData (".hostingVirtualPath", virtualDir);
  87                         domain.SetData (".hostingInstallDir", ICalls.GetMachineInstallDirectory ());
  88                         InitConfigInNewAppDomain (domain);
  89                         ObjectHandle o = domain.CreateInstance (hostType.Assembly.FullName,
  90                                                                 hostType.FullName);
  91                         return o.Unwrap();
  92                 }
  93
  94                 private static void InitConfigInNewAppDomain (AppDomain appDomain)
  95                 {
  96                         Type t = typeof (ConfigInitHelper);
  97                         ObjectHandle o = appDomain.CreateInstance (t.Assembly.FullName, t.FullName);
  98                         ConfigInitHelper helper = (ConfigInitHelper) o.Unwrap();
  99                         helper.InitConfig ();
 100                 }
 101         }
 102 }
 103