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//
// System.Web.Configuration.GlobalizationConfigurationHandler
//
// Authors:
// Gonzalo Paniagua Javier (gonzalo@ximian.com)
//
// (C) 2003 Ximian, Inc (http://www.ximian.com)
//
using System.Configuration;
using System.Globalization;
using System.Text;
using System.Xml;
namespace System.Web.Configuration
{
class GlobalizationConfigurationHandler : IConfigurationSectionHandler
{
static bool encoding_warning;
static bool culture_warning;
public object Create (object parent, object configContext, XmlNode section)
{
GlobalizationConfiguration config = new GlobalizationConfiguration (parent);
if (section.HasChildNodes)
ThrowException ("No child nodes allowed here.", section);
string attvalue = AttValue ("requestEncoding", section, true);
if (attvalue == null)
config.RequestEncoding = Encoding.Default;
else
config.RequestEncoding = GetEncoding (section, "requestEncoding", attvalue);
attvalue = AttValue ("responseEncoding", section, true);
if (attvalue == null)
config.ResponseEncoding = Encoding.Default;
else
config.ResponseEncoding = GetEncoding (section, "responseEncoding", attvalue);
attvalue = AttValue ("fileEncoding", section, true);
if (attvalue == null)
config.FileEncoding = Encoding.Default;
else
config.FileEncoding = GetEncoding (section, "fileEncoding", attvalue);
attvalue = AttValue ("culture", section, true);
if (attvalue != null)
config.Culture = GetCulture (section, "culture", attvalue);
attvalue = AttValue ("uiculture", section, true);
if (attvalue != null)
config.UICulture = GetCulture (section, "uiculture", attvalue);
if (section.Attributes == null || section.Attributes.Count != 0)
ThrowException ("Unknown attribute(s).", section);
return config;
}
static Encoding GetEncoding (XmlNode section, string att, string enc)
{
Encoding encoding = null;
try {
switch (enc.ToLower ()) {
case "utf-16le":
case "utf-16":
case "ucs-2":
case "unicode":
case "iso-10646-ucs-2":
encoding = new UnicodeEncoding (false, true);
break;
case "utf-16be":
case "unicodefffe":
encoding = new UnicodeEncoding (true, true);
break;
case "utf-8":
case "unicode-1-1-utf-8":
case "unicode-2-0-utf-8":
case "x-unicode-1-1-utf-8":
case "x-unicode-2-0-utf-8":
encoding = new UTF8Encoding (false, false);
break;
default:
encoding = Encoding.GetEncoding (enc);
break;
}
} catch {
EncodingFailed (section, att, enc);
encoding = new UTF8Encoding (false, false);
}
return encoding;
}
static CultureInfo GetCulture (XmlNode section, string att, string cul)
{
CultureInfo culture = null;
try {
culture = new CultureInfo (cul);
} catch {
CultureFailed (section, att, cul);
culture = new CultureInfo (0x007f); // Invariant
}
return culture;
}
static void EncodingFailed (XmlNode section, string att, string enc)
{
if (encoding_warning)
return;
encoding_warning = true;
Console.WriteLine ("Encoding {1} cannot be loaded. Perhaps your runtime \n" +
"don't have ICU support?\n{0}=\"{1}\"\n", att, enc);
}
static void CultureFailed (XmlNode section, string att, string cul)
{
if (culture_warning)
return;
culture_warning = true;
Console.WriteLine ("Culture {1} cannot be loaded. Perhaps your runtime \n" +
"don't have ICU support?\n{0}=\"{1}\"\n", att, cul);
}
// A few methods to save some typing
static string AttValue (string name, XmlNode node, bool optional)
{
return HandlersUtil.ExtractAttributeValue (name, node, optional);
}
static string AttValue (string name, XmlNode node)
{
return HandlersUtil.ExtractAttributeValue (name, node, true);
}
static void ThrowException (string message, XmlNode node)
{
HandlersUtil.ThrowException (message, node);
}
//
}
}
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