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

   1 //
   2 // System.Web.Hosting.HostingEnvironment.cs
   3 //
   4 // Author:
   5 //      Chris Toshok (toshok@ximian.com)
   6 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   7 //
   8
   9 //
  10 // Copyright (C) 2005,2006 Novell, Inc (http://www.novell.com)
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32
  33 using System;
  34 using System.Globalization;
  35 using System.Security.Permissions;
  36 using System.Threading;
  37 using System.Web.Configuration;
  38 using System.Web.Caching;
  39 using System.Web.Util;
  40
  41 namespace System.Web.Hosting {
  42
  43         [AspNetHostingPermission (SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Medium)]
  44         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.High)]
  45         public sealed class HostingEnvironment : MarshalByRefObject
  46         {
  47                 static bool is_hosted;
  48 #pragma warning disable 0649
  49                 static string site_name;
  50                 static ApplicationShutdownReason shutdown_reason;
  51 #pragma warning restore 0649
  52                 internal static BareApplicationHost Host;
  53                 static VirtualPathProvider vpath_provider = (HttpRuntime.AppDomainAppVirtualPath == null) ? null :
  54                                                                 new DefaultVirtualPathProvider ();
  55                 static int busy_count;
  56
  57                 internal static bool HaveCustomVPP {
  58                         get;
  59                         private set;
  60                 }
  61
  62                 public HostingEnvironment ()
  63                 {
  64                         // The documentation says that this is called once per domain by the ApplicationManager and
  65                         // then it throws InvalidOperationException whenever called.
  66                         throw new InvalidOperationException ();
  67                 }
  68
  69                 public static string ApplicationID {
  70                         get { return HttpRuntime.AppDomainAppId; }
  71                 }
  72
  73                 public static string ApplicationPhysicalPath {
  74                         get { return HttpRuntime.AppDomainAppPath; }
  75                 }
  76
  77                 public static string ApplicationVirtualPath {
  78                         get { return HttpRuntime.AppDomainAppVirtualPath; }
  79                 }
  80
  81                 public static Cache Cache {
  82                         get { return HttpRuntime.Cache; }
  83                 }
  84
  85                 public static Exception InitializationException {
  86                         get { return HttpApplication.InitializationException; }
  87                 }
  88
  89                 public static bool IsHosted {
  90                         get { return is_hosted; }
  91                         internal set { is_hosted = value; }
  92                 }
  93
  94                 public static ApplicationShutdownReason ShutdownReason {
  95                         get { return shutdown_reason; }
  96                 }
  97
  98                 public static string SiteName {
  99                         get { return site_name; }
 100                         internal set { site_name = value; }
 101                 }
 102
 103                 public static VirtualPathProvider VirtualPathProvider {
 104                         get { return vpath_provider; }
 105                 }
 106
 107                 public static bool InClientBuildManager {
 108                         get {
 109                                 // Mono doesn't have a ClientBuildManager, so we can't be in it. Simple as that.
 110                                 return false;
 111                         }
 112                 }
 113
 114                 public static void DecrementBusyCount ()
 115                 {
 116                         Interlocked.Decrement (ref busy_count);
 117                 }
 118
 119                 [MonoTODO ("Not implemented")]
 120                 public static IDisposable Impersonate ()
 121                 {
 122                         throw new NotImplementedException ();
 123                 }
 124
 125                 [MonoTODO ("Not implemented")]
 126                 public static IDisposable Impersonate (IntPtr token)
 127                 {
 128                         throw new NotImplementedException ();
 129                 }
 130
 131                 [MonoTODO ("Not implemented")]
 132                 public static IDisposable Impersonate (IntPtr userToken, string virtualPath)
 133                 {
 134                         throw new NotImplementedException ();
 135                 }
 136
 137                 public static void IncrementBusyCount ()
 138                 {
 139                         Interlocked.Increment (ref busy_count);
 140                 }
 141
 142                 public override object InitializeLifetimeService ()
 143                 {
 144                         return null;
 145                 }
 146
 147                 public static void InitiateShutdown ()
 148                 {
 149                         HttpRuntime.UnloadAppDomain ();
 150                 }
 151
 152                 public static string MapPath (string virtualPath)
 153                 {
 154                         if (virtualPath == null || virtualPath == "")
 155                                 throw new ArgumentNullException ("virtualPath");
 156
 157                         HttpContext context = HttpContext.Current;
 158                         HttpRequest req = context == null ? null : context.Request;
 159                         if (req == null)
 160                                 return null;
 161
 162                         return req.MapPath (virtualPath);
 163                 }
 164
 165                 public static void RegisterObject (IRegisteredObject obj)
 166                 {
 167                         if (obj == null)
 168                                 throw new ArgumentNullException ("obj");
 169
 170                         if (Host != null)
 171                                 Host.RegisterObject (obj, false);
 172                 }
 173
 174                 public static void RegisterVirtualPathProvider (VirtualPathProvider virtualPathProvider)
 175                 {
 176                         if (HttpRuntime.AppDomainAppVirtualPath == null)
 177                                 throw new InvalidOperationException ();
 178
 179                         if (virtualPathProvider == null)
 180                                 throw new ArgumentNullException ("virtualPathProvider");
 181
 182                         VirtualPathProvider previous = vpath_provider;
 183                         vpath_provider = virtualPathProvider;
 184                         vpath_provider.InitializeAndSetPrevious (previous);
 185                         if (!(virtualPathProvider is DefaultVirtualPathProvider))
 186                                 HaveCustomVPP = true;
 187                         else
 188                                 HaveCustomVPP = false;
 189                 }
 190
 191                 public static IDisposable SetCultures (string virtualPath)
 192                 {
 193                         GlobalizationSection gs = WebConfigurationManager.GetSection ("system.web/globalization", virtualPath) as GlobalizationSection;
 194                         IDisposable ret = Thread.CurrentThread.CurrentCulture as IDisposable;
 195                         string culture = gs.Culture;
 196                         if (String.IsNullOrEmpty (culture))
 197                                 return ret;
 198                         Thread.CurrentThread.CurrentCulture = new CultureInfo (culture);
 199                         return ret;
 200                 }
 201
 202                 public static IDisposable SetCultures ()
 203                 {
 204                         return SetCultures ("~/");
 205                 }
 206
 207                 public static void UnregisterObject (IRegisteredObject obj)
 208                 {
 209                         if (obj == null)
 210                                 throw new ArgumentNullException ("obj");
 211
 212                         if (Host != null)
 213                                 Host.UnregisterObject (obj);
 214                 }
 215         }
 216 }
 217