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

   1 //
   2 // System.Web.Hosting.DefaultVirtualPathProvider
   3 //
   4 // Author:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //
   7 //
   8 // Copyright (C) 2006 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29 using System;
  30 using System.Collections;
  31 using System.IO;
  32 using System.Web.Caching;
  33 using System.Web.Util;
  34
  35 namespace System.Web.Hosting {
  36         sealed class DefaultVirtualPathProvider : VirtualPathProvider {
  37
  38                 internal DefaultVirtualPathProvider ()
  39                 {
  40                 }
  41
  42                 protected override void Initialize ()
  43                 {
  44                 }
  45
  46                 /*
  47                  * No need to override this, it seems
  48                 public override string CombineVirtualPaths (string basePath, string relativePath)
  49                 {
  50                         return VirtualPathUtility.Combine (basePath, relativePath);
  51                 }
  52                 */
  53
  54                 public override bool DirectoryExists (string virtualDir)
  55                 {
  56                         if (String.IsNullOrEmpty (virtualDir))
  57                                 throw new ArgumentNullException ("virtualDir");
  58
  59                         string phys_path = HostingEnvironment.MapPath (virtualDir);
  60                         return Directory.Exists (phys_path);
  61                 }
  62
  63                 public override bool FileExists (string virtualPath)
  64                 {
  65                         if (String.IsNullOrEmpty (virtualPath))
  66                                 throw new ArgumentNullException ("virtualPath");
  67
  68                         string phys_path = HostingEnvironment.MapPath (virtualPath);
  69                         return File.Exists (phys_path);
  70                 }
  71
  72                 public override CacheDependency GetCacheDependency (string virtualPath,
  73                                                                 IEnumerable virtualPathDependencies,
  74                                                                 DateTime utcStart)
  75                 {
  76                         return null;
  77                 }
  78
  79                 public override string GetCacheKey (string virtualPath)
  80                 {
  81                         return null; // Always
  82                 }
  83
  84                 public override VirtualDirectory GetDirectory (string virtualDir)
  85                 {
  86                         if (String.IsNullOrEmpty (virtualDir))
  87                                 throw new ArgumentNullException ("virtualDir");
  88
  89                         return new DefaultVirtualDirectory (virtualDir);
  90                 }
  91
  92                 public override VirtualFile GetFile (string virtualPath)
  93                 {
  94                         if (String.IsNullOrEmpty (virtualPath))
  95                                 throw new ArgumentNullException ("virtualPath");
  96
  97                         return new DefaultVirtualFile (virtualPath);
  98                 }
  99
 100                 public override string GetFileHash (string virtualPath, IEnumerable virtualPathDependencies)
 101                 {
 102                         if (virtualPath == null || virtualPathDependencies == null)
 103                                 throw new NullReferenceException ();
 104
 105                         // No deps -> 1505
 106                         // Non-existing virtual deps -> 1505
 107                         // Relative virtual deps -> exception
 108                         // virtualPath does not matter at all (?)
 109                         // The number varies accross xsp executions
 110                         return virtualPath;
 111                 }
 112         }
 113 }
 114
 115