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 using System;
  12 using System.Collections;
  13 using System.IO;
  14 using System.Web;
  15 using System.Web.Util;
  16
  17 namespace System.Web.UI
  18 {
  19         public class BaseParser
  20         {
  21                 private HttpContext context;
  22                 private string baseDir;
  23                 private string baseVDir;
  24
  25                 internal string MapPath (string path)
  26                 {
  27                         return MapPath (path, true);
  28                 }
  29
  30                 internal string MapPath (string path, bool allowCrossAppMapping)
  31                 {
  32                         if (context == null)
  33                                 throw new HttpException ("context is null!!");
  34
  35                         return context.Request.MapPath (path, context.Request.ApplicationPath, allowCrossAppMapping);
  36                 }
  37
  38                 internal string PhysicalPath (string path)
  39                 {
  40                         if (Path.DirectorySeparatorChar != '/')
  41                                 path = path.Replace ('/', '\\');
  42
  43                         return Path.Combine (BaseDir, path);
  44                 }
  45
  46                 internal bool GetBool (Hashtable hash, string key, bool deflt)
  47                 {
  48                         string val = hash [key] as string;
  49                         if (val == null)
  50                                 return deflt;
  51
  52                         hash.Remove (key);
  53
  54                         bool result;
  55                         if (String.Compare (val, "true", true) == 0)
  56                                 result = true;
  57                         else if (String.Compare (val, "false", true) == 0)
  58                                 result = false;
  59                         else
  60                                 throw new HttpException ("Invalid value for " + key);
  61
  62                         return result;
  63                 }
  64
  65                 internal string GetString (Hashtable hash, string key, string deflt)
  66                 {
  67                         string val = hash [key] as string;
  68                         if (val == null)
  69                                 return deflt;
  70
  71                         hash.Remove (key);
  72                         return val;
  73                 }
  74
  75                 //
  76
  77                 internal HttpContext Context {
  78                         get { return context; }
  79                         set { context = value; }
  80                 }
  81
  82                 internal string BaseDir {
  83                         get {
  84                                 if (baseDir == null)
  85                                         baseDir = MapPath (BaseVirtualDir, false);
  86
  87                                 return baseDir;
  88                         }
  89                 }
  90
  91                 internal virtual string BaseVirtualDir {
  92                         get {
  93                                 if (baseVDir == null)
  94                                         baseVDir = UrlUtils.GetDirectory (context.Request.FilePath);
  95
  96                                 return baseVDir;
  97                         }
  98                 }
  99         }
 100 }
 101