mcs/class/System.Web/System.Web.UI/BaseParser.cs

   1 //
   2 // System.Web.UI.BaseParser.cs
   3 //
   4 // Authors:
   5 //      Duncan Mak  (duncan@ximian.com)
   6 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   7 //
   8 // (C) 2002 Ximian, Inc. (http://www.ximian.com)
   9 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
  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
  31 using System.Collections;
  32 using System.IO;
  33 using System.Security.Permissions;
  34 using System.Web.Compilation;
  35 using System.Web.Configuration;
  36 using System.Web.Util;
  37
  38 namespace System.Web.UI
  39 {
  40         // CAS
  41         [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  42         [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  43         public class BaseParser
  44         {
  45                 HttpContext context;
  46                 string baseDir;
  47                 string baseVDir;
  48                 ILocation location;
  49 #if !NET_2_0
  50                 CompilationConfiguration compilationConfig;
  51 #endif
  52
  53                 internal string MapPath (string path)
  54                 {
  55                         return MapPath (path, true);
  56                 }
  57
  58                 internal string MapPath (string path, bool allowCrossAppMapping)
  59                 {
  60                         if (context == null)
  61                                 throw new HttpException ("context is null!!");
  62
  63                         return context.Request.MapPath (path, BaseVirtualDir, allowCrossAppMapping);
  64                 }
  65
  66                 internal string PhysicalPath (string path)
  67                 {
  68                         if (Path.DirectorySeparatorChar != '/')
  69                                 path = path.Replace ('/', '\\');
  70
  71                         return Path.Combine (BaseDir, path);
  72                 }
  73
  74                 internal bool GetBool (Hashtable hash, string key, bool deflt)
  75                 {
  76                         string val = hash [key] as string;
  77                         if (val == null)
  78                                 return deflt;
  79
  80                         hash.Remove (key);
  81
  82                         bool result = false;
  83                         if (String.Compare (val, "true", true) == 0)
  84                                 result = true;
  85                         else if (String.Compare (val, "false", true) != 0)
  86                                 ThrowParseException ("Invalid value for " + key);
  87
  88                         return result;
  89                 }
  90
  91                 internal static string GetString (Hashtable hash, string key, string deflt)
  92                 {
  93                         string val = hash [key] as string;
  94                         if (val == null)
  95                                 return deflt;
  96
  97                         hash.Remove (key);
  98                         return val;
  99                 }
 100
 101                 internal void ThrowParseException (string message)
 102                 {
 103                         throw new ParseException (location, message);
 104                 }
 105
 106                 internal void ThrowParseException (string message, Exception inner)
 107                 {
 108                         throw new ParseException (location, message, inner);
 109                 }
 110
 111                 internal ILocation Location {
 112                         get { return location; }
 113                         set { location = value; }
 114                 }
 115
 116                 internal HttpContext Context {
 117                         get { return context; }
 118                         set { context = value; }
 119                 }
 120
 121                 internal string BaseDir {
 122                         get {
 123                                 if (baseDir == null)
 124                                         baseDir = MapPath (BaseVirtualDir, false);
 125
 126                                 return baseDir;
 127                         }
 128                 }
 129
 130                 internal virtual string BaseVirtualDir {
 131                         get {
 132                                 if (baseVDir == null)
 133                                         baseVDir = UrlUtils.GetDirectory (context.Request.FilePath);
 134
 135                                 return baseVDir;
 136                         }
 137
 138                         set { baseVDir = value; }
 139                 }
 140
 141 #if NET_2_0
 142                 internal CompilationSection CompilationConfig {
 143                         get {
 144                                 return WebConfigurationManager.GetSection ("system.web/compilation") as CompilationSection;
 145                         }
 146                 }
 147
 148 #else
 149                 internal CompilationConfiguration CompilationConfig {
 150                         get {
 151                                 if (compilationConfig == null)
 152                                         compilationConfig = CompilationConfiguration.GetInstance (context);
 153
 154                                 return compilationConfig;
 155                         }
 156                 }
 157 #endif
 158         }
 159 }
 160