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//------------------------------------------------------------------------------
// <copyright file="MobileDeviceCapabilitiesSectionHandler.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.Mobile
{
using System.Collections;
using System.Configuration;
using System.Reflection;
using System.Xml;
using System.Security.Permissions;
/// <include file='doc\MobileDeviceCapabilitiesSectionHandler.uex' path='docs/doc[@for="MobileDeviceCapabilitiesSectionHandler"]/*' />
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
public class MobileDeviceCapabilitiesSectionHandler : IConfigurationSectionHandler
{
// IConfigurationSectionHandler Methods
/// <include file='doc\MobileDeviceCapabilitiesSectionHandler.uex' path='docs/doc[@for="MobileDeviceCapabilitiesSectionHandler.IConfigurationSectionHandler.Create"]/*' />
/// <internalonly/>
Object IConfigurationSectionHandler.Create(Object parent, Object context,
XmlNode node)
{
return Create(parent, context, node);
}
protected object Create(Object parent, Object context, XmlNode node) {
// see ASURT 123738
if (context == null || context.GetType() != typeof(System.Web.Configuration.HttpConfigurationContext)) {
return null;
}
DeviceFilterDictionary currentFilterDictionary;
if(parent == null)
{
currentFilterDictionary = new DeviceFilterDictionary();
}
else
{
currentFilterDictionary = new DeviceFilterDictionary(
(DeviceFilterDictionary)parent);
}
ConfigurationSectionHelper helper = new ConfigurationSectionHelper();
foreach(XmlNode child in node.ChildNodes)
{
helper.Node = child;
// skip whitespace and comments
if(helper.IsWhitespaceOrComment())
{
continue;
}
// reject nonelements
helper.RejectNonElement();
// handle <filter> tags
if(child.Name.Equals("filter"))
{
String name = helper.RemoveStringAttribute("name", true);
String className = helper.RemoveStringAttribute("type", false);
if(className != null)
{
const String methodAttributeName = "method";
String methodName = helper.RemoveStringAttribute(methodAttributeName, false);
String capabilityName = helper.RemoveStringAttribute("compare", false);
String argumentValue = helper.RemoveStringAttribute("argument", false);
helper.CheckForUnrecognizedAttributes();
if(className == String.Empty)
{
throw new
ConfigurationErrorsException(SR.GetString(SR.DevCapSect_EmptyClass), child);
}
if(methodName == null)
{
throw new
ConfigurationErrorsException(SR.GetString(SR.ConfigSect_MissingAttr, methodAttributeName), child);
}
if(methodName == String.Empty)
{
throw new
ConfigurationErrorsException(SR.GetString(SR.ConfigSect_MissingValue, methodAttributeName), child);
}
if(capabilityName != null || argumentValue != null)
{
String msg;
if (capabilityName != null)
{
msg = SR.GetString(SR.DevCapSect_ExtraCompareDelegator);
}
else
{
msg = SR.GetString(SR.DevCapSect_ExtraArgumentDelegator);
}
throw new ConfigurationErrorsException(msg, child);
}
MobileCapabilities.EvaluateCapabilitiesDelegate evaluator;
Type evaluatorClass = Type.GetType(className);
if(null == evaluatorClass)
{
String msg =
SR.GetString(SR.DevCapSect_NoTypeInfo, className);
throw new ConfigurationErrorsException(msg, child);
}
try
{
evaluator =
(MobileCapabilities.EvaluateCapabilitiesDelegate)
MobileCapabilities.EvaluateCapabilitiesDelegate.CreateDelegate(
typeof(MobileCapabilities.EvaluateCapabilitiesDelegate),
evaluatorClass, methodName);
}
catch(Exception e)
{
String msg =
SR.GetString(SR.DevCapSect_NoCapabilityEval,
methodName, e.Message);
throw new ConfigurationErrorsException(msg, child);
}
currentFilterDictionary.AddCapabilityDelegate(name, evaluator);
}
else
{
String capabilityName = helper.RemoveStringAttribute("compare", false);
String argumentValue = helper.RemoveStringAttribute("argument", false);
String methodName = helper.RemoveStringAttribute("method", false);
helper.CheckForUnrecognizedAttributes();
if(String.IsNullOrEmpty(capabilityName))
{
throw new ConfigurationErrorsException(
SR.GetString(SR.DevCapSect_MustSpecify),
child);
}
if(methodName != null)
{
throw new ConfigurationErrorsException(
SR.GetString(SR.DevCapSect_ComparisonAlreadySpecified),
child);
}
try
{
currentFilterDictionary.AddComparisonDelegate(name, capabilityName, argumentValue);
}
catch(Exception e)
{
String msg = SR.GetString(SR.DevCapSect_UnableAddDelegate,
name, e.Message);
throw new ConfigurationErrorsException(msg, child);
}
}
}
else
{
String msg = SR.GetString(SR.DevCapSect_UnrecognizedTag,
child.Name);
throw new ConfigurationErrorsException(msg, child);
}
helper.Node = null;
}
return currentFilterDictionary;
}
}
}
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