mcs/class/System.Web/System.Web.Configuration_2.0/GlobalizationSection.cs

   1 //
   2 // System.Web.Configuration.GlobalizationSection
   3 //
   4 // Authors:
   5 //      Chris Toshok (toshok@ximian.com)
   6 //
   7 // (C) 2005 Novell, Inc (http://www.novell.com)
   8 //
   9
  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;
  32 using System.Collections;
  33 using System.Configuration;
  34 using System.Globalization;
  35 using System.Text;
  36 using System.Xml;
  37
  38 #if NET_2_0
  39
  40 namespace System.Web.Configuration {
  41
  42         public sealed class GlobalizationSection : ConfigurationSection
  43         {
  44                 static ConfigurationProperty cultureProp;
  45                 static ConfigurationProperty enableBestFitResponseEncodingProp;
  46                 static ConfigurationProperty enableClientBasedCultureProp;
  47                 static ConfigurationProperty fileEncodingProp;
  48                 static ConfigurationProperty requestEncodingProp;
  49                 static ConfigurationProperty resourceProviderFactoryTypeProp;
  50                 static ConfigurationProperty responseEncodingProp;
  51                 static ConfigurationProperty responseHeaderEncodingProp;
  52                 static ConfigurationProperty uiCultureProp;
  53                 static ConfigurationPropertyCollection properties;
  54
  55                 static GlobalizationSection ()
  56                 {
  57                         cultureProp = new ConfigurationProperty ("culture", typeof (string), "");
  58                         enableBestFitResponseEncodingProp = new ConfigurationProperty ("enableBestFitResponseEncoding", typeof (bool), false);
  59                         enableClientBasedCultureProp = new ConfigurationProperty ("enableClientBasedCulture", typeof (bool), false);
  60                         fileEncodingProp = new ConfigurationProperty ("fileEncoding", typeof (string));
  61                         requestEncodingProp = new ConfigurationProperty ("requestEncoding", typeof (string), "utf-8");
  62                         resourceProviderFactoryTypeProp = new ConfigurationProperty ("resourceProviderFactoryType", typeof (string), "");
  63                         responseEncodingProp = new ConfigurationProperty ("responseEncoding", typeof (string), "utf-8");
  64                         responseHeaderEncodingProp = new ConfigurationProperty ("responseHeaderEncoding", typeof (string), "utf-8");
  65                         uiCultureProp = new ConfigurationProperty ("uiCulture", typeof (string), "");
  66                         properties = new ConfigurationPropertyCollection ();
  67
  68                         properties.Add (cultureProp);
  69                         properties.Add (enableBestFitResponseEncodingProp);
  70                         properties.Add (enableClientBasedCultureProp);
  71                         properties.Add (fileEncodingProp);
  72                         properties.Add (requestEncodingProp);
  73                         properties.Add (resourceProviderFactoryTypeProp);
  74                         properties.Add (responseEncodingProp);
  75                         properties.Add (responseHeaderEncodingProp);
  76                         properties.Add (uiCultureProp);
  77                 }
  78
  79                 public GlobalizationSection ()
  80                 {
  81                         encodingHash = new Hashtable ();
  82                 }
  83
  84                 void VerifyData ()
  85                 {
  86                         try {
  87                                 new CultureInfo (Culture);
  88                         }
  89                         catch {
  90                                 throw new ConfigurationErrorsException ("the <globalization> tag contains an invalid value for the 'culture' attribute");
  91                         }
  92
  93                         try {
  94                                 new CultureInfo (UICulture);
  95                         }
  96                         catch {
  97                                 throw new ConfigurationErrorsException ("the <globalization> tag contains an invalid value for the 'uiCulture' attribute");
  98                         }
  99                 }
 100
 101                 protected override void PostDeserialize ()
 102                 {
 103                         base.PostDeserialize();
 104
 105                         VerifyData ();
 106                 }
 107
 108                 protected override void PreSerialize (XmlWriter writer)
 109                 {
 110                         base.PreSerialize(writer);
 111
 112                         VerifyData ();
 113                 }
 114
 115                 [ConfigurationProperty ("culture", DefaultValue = "")]
 116                 public string Culture {
 117                         get { return (string) base [cultureProp];}
 118                         set { base[cultureProp] = value; }
 119                 }
 120
 121                 [ConfigurationProperty ("enableBestFitResponseEncoding", DefaultValue = "False")]
 122                 public bool EnableBestFitResponseEncoding {
 123                         get { return (bool) base [enableBestFitResponseEncodingProp];}
 124                         set { base[enableBestFitResponseEncodingProp] = value; }
 125                 }
 126
 127                 [ConfigurationProperty ("enableClientBasedCulture", DefaultValue = "False")]
 128                 public bool EnableClientBasedCulture {
 129                         get { return (bool) base [enableClientBasedCultureProp];}
 130                         set { base[enableClientBasedCultureProp] = value; }
 131                 }
 132
 133                 [ConfigurationProperty ("fileEncoding")]
 134                 public Encoding FileEncoding {
 135                         get { return GetEncoding (fileEncodingProp, ref cached_fileencoding); }
 136                         set { base[fileEncodingProp] = value.EncodingName; }
 137                 }
 138
 139                 [ConfigurationProperty ("requestEncoding", DefaultValue = "utf-8")]
 140                 public Encoding RequestEncoding {
 141                         get { return GetEncoding (requestEncodingProp, ref cached_requestencoding); }
 142                         set { base[requestEncodingProp] = value.EncodingName; }
 143                 }
 144
 145                 [ConfigurationProperty ("resourceProviderFactoryType", DefaultValue = "")]
 146                 public string ResourceProviderFactoryType {
 147                         get { return (string) base [resourceProviderFactoryTypeProp];}
 148                         set { base[resourceProviderFactoryTypeProp] = value; }
 149                 }
 150
 151                 [ConfigurationProperty ("responseEncoding", DefaultValue = "utf-8")]
 152                 public Encoding ResponseEncoding {
 153                         get { return GetEncoding (responseEncodingProp, ref cached_responseencoding); }
 154                         set { base[responseEncodingProp] = value.EncodingName; }
 155                 }
 156
 157                 [ConfigurationProperty ("responseHeaderEncoding", DefaultValue = "utf-8")]
 158                 public Encoding ResponseHeaderEncoding {
 159                         get { return GetEncoding (responseHeaderEncodingProp, ref cached_responseheaderencoding); }
 160                         set { base[responseHeaderEncodingProp] = value.EncodingName; }
 161                 }
 162
 163                 [ConfigurationProperty ("uiCulture", DefaultValue = "")]
 164                 public string UICulture {
 165                         get { return (string) base [uiCultureProp];}
 166                         set { base[uiCultureProp] = value; }
 167                 }
 168
 169                 protected override ConfigurationPropertyCollection Properties {
 170                         get { return properties; }
 171                 }
 172
 173 #region CompatabilityCode
 174                 string cached_fileencoding;
 175                 string cached_requestencoding;
 176                 string cached_responseencoding;
 177                 string cached_responseheaderencoding;
 178                 Hashtable encodingHash;
 179
 180                 string cached_culture;
 181                 CultureInfo cached_cultureinfo;
 182
 183                 string cached_uiculture;
 184                 CultureInfo cached_uicultureinfo;
 185
 186                 static bool encoding_warning;
 187                 static bool culture_warning;
 188
 189                 internal CultureInfo GetUICulture ()
 190                 {
 191                         if (cached_uiculture != UICulture) {
 192                                 try {
 193                                         cached_uicultureinfo = new CultureInfo (UICulture);
 194                                 } catch {
 195                                         CultureFailed ("UICulture", UICulture);
 196                                         cached_uicultureinfo = new CultureInfo (0x007f); // Invariant
 197                                 }
 198                         }
 199
 200                         return cached_uicultureinfo;
 201                 }
 202
 203                 internal CultureInfo GetCulture ()
 204                 {
 205                         if (cached_culture != Culture) {
 206                                 try {
 207                                         cached_cultureinfo = new CultureInfo (Culture);
 208                                 } catch {
 209                                         CultureFailed ("Culture", Culture);
 210                                         cached_cultureinfo = new CultureInfo (0x007f); // Invariant
 211                                 }
 212                         }
 213
 214                         return cached_cultureinfo;
 215                 }
 216
 217                 Encoding GetEncoding (ConfigurationProperty prop, ref string cached_encoding_name)
 218                 {
 219                         if (cached_encoding_name == null)
 220                                 cached_encoding_name = "utf-8";
 221
 222                         Encoding encoding = (Encoding)encodingHash [prop];
 223                         if (encoding == null || encoding.EncodingName != cached_encoding_name) {
 224                                 try {
 225                                         switch (cached_encoding_name.ToLower ()) {
 226                                         case "utf-16le":
 227                                         case "utf-16":
 228                                         case "ucs-2":
 229                                         case "unicode":
 230                                         case "iso-10646-ucs-2":
 231                                                 encoding = new UnicodeEncoding (false, true);
 232                                                 break;
 233                                         case "utf-16be":
 234                                         case "unicodefffe":
 235                                                 encoding = new UnicodeEncoding (true, true);
 236                                                 break;
 237                                         case "utf-8":
 238                                         case "unicode-1-1-utf-8":
 239                                         case "unicode-2-0-utf-8":
 240                                         case "x-unicode-1-1-utf-8":
 241                                         case "x-unicode-2-0-utf-8":
 242                                                 encoding = Encoding.UTF8;
 243                                                 break;
 244                                         default:
 245                                                 encoding = Encoding.GetEncoding (cached_encoding_name);
 246                                                 break;
 247                                         }
 248                                 } catch {
 249                                         EncodingFailed (prop.Name, cached_encoding_name);
 250                                         encoding = new UTF8Encoding (false, false);
 251                                 }
 252                         }
 253
 254                         encodingHash[prop] = encoding;
 255                         cached_encoding_name = encoding.EncodingName;
 256
 257                         return encoding;
 258                 }
 259
 260                 static void EncodingFailed (string att, string enc)
 261                 {
 262                         if (encoding_warning)
 263                                 return;
 264
 265                         encoding_warning = true;
 266                         Console.WriteLine ("Encoding {1} cannot be loaded.\n" +
 267                                            "{0}=\"{1}\"\n", att, enc);
 268                 }
 269
 270                 static void CultureFailed (string att, string cul)
 271                 {
 272                         if (culture_warning)
 273                                 return;
 274
 275                         culture_warning = true;
 276                         Console.WriteLine ("Culture {1} cannot be loaded. Perhaps your runtime \n" +
 277                                            "don't have ICU support?\n{0}=\"{1}\"\n", att, cul);
 278                 }
 279
 280 #endregion
 281         }
 282
 283 }
 284
 285 #endif
 286