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 //
  10
  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 using System;
  33 using System.Collections;
  34 using System.IO;
  35 using System.Web;
  36 using System.Web.Compilation;
  37 using System.Web.Configuration;
  38 using System.Web.Util;
  39
  40 namespace System.Web.UI
  41 {
  42         public class BaseParser
  43         {
  44                 HttpContext context;
  45                 string baseDir;
  46                 string baseVDir;
  47                 ILocation location;
  48                 CompilationConfiguration compilationConfig;
  49
  50                 internal string MapPath (string path)
  51                 {
  52                         return MapPath (path, true);
  53                 }
  54
  55                 internal string MapPath (string path, bool allowCrossAppMapping)
  56                 {
  57                         if (context == null)
  58                                 throw new HttpException ("context is null!!");
  59
  60                         return context.Request.MapPath (path, BaseVirtualDir, allowCrossAppMapping);
  61                 }
  62
  63                 internal string PhysicalPath (string path)
  64                 {
  65                         if (Path.DirectorySeparatorChar != '/')
  66                                 path = path.Replace ('/', '\\');
  67
  68                         return Path.Combine (BaseDir, path);
  69                 }
  70
  71                 internal bool GetBool (Hashtable hash, string key, bool deflt)
  72                 {
  73                         string val = hash [key] as string;
  74                         if (val == null)
  75                                 return deflt;
  76
  77                         hash.Remove (key);
  78
  79                         bool result = false;
  80                         if (String.Compare (val, "true", true) == 0)
  81                                 result = true;
  82                         else if (String.Compare (val, "false", true) != 0)
  83                                 ThrowParseException ("Invalid value for " + key);
  84
  85                         return result;
  86                 }
  87
  88                 internal static string GetString (Hashtable hash, string key, string deflt)
  89                 {
  90                         string val = hash [key] as string;
  91                         if (val == null)
  92                                 return deflt;
  93
  94                         hash.Remove (key);
  95                         return val;
  96                 }
  97
  98                 internal void ThrowParseException (string message)
  99                 {
 100                         throw new ParseException (location, message);
 101                 }
 102
 103                 internal void ThrowParseException (string message, Exception inner)
 104                 {
 105                         throw new ParseException (location, message, inner);
 106                 }
 107
 108                 internal ILocation Location {
 109                         get { return location; }
 110                         set { location = value; }
 111                 }
 112
 113                 internal HttpContext Context {
 114                         get { return context; }
 115                         set { context = value; }
 116                 }
 117
 118                 internal string BaseDir {
 119                         get {
 120                                 if (baseDir == null)
 121                                         baseDir = MapPath (BaseVirtualDir, false);
 122
 123                                 return baseDir;
 124                         }
 125                 }
 126
 127                 internal virtual string BaseVirtualDir {
 128                         get {
 129                                 if (baseVDir == null)
 130                                         baseVDir = UrlUtils.GetDirectory (context.Request.FilePath);
 131
 132                                 return baseVDir;
 133                         }
 134
 135                         set { baseVDir = value; }
 136                 }
 137
 138                 internal CompilationConfiguration CompilationConfig {
 139                         get {
 140                                 if (compilationConfig == null)
 141                                         compilationConfig = CompilationConfiguration.GetInstance (context);
 142
 143                                 return compilationConfig;
 144                         }
 145                 }
 146         }
 147 }
 148