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//------------------------------------------------------------------------------
// <copyright file="OutputCacheSection.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.Configuration {
using System;
using System.Xml;
using System.Configuration;
using System.Collections.Specialized;
using System.Collections;
using System.Globalization;
using System.IO;
using System.Text;
using System.Security.Permissions;
using System.Web.Caching;
/* <!--
outputCache Attributes:
enableOutputCache="[true|false]" - Enable or disable the output cache
enableFragmentCache="[true|false]" - Enable or disable the fragment (user control) cache
sendCacheControlHeader="[true|false]" - Enables automatic insertion of "Cache-Control: private" header
omitVaryStar="[true|false]" - Enables automatic insertion of "Vary: *" header
enableKernelCacheForVaryByStar="[true|false]" - Enable kernel caching for "Vary: *" header even with non-empty query string
-->
<outputCache enableOutputCache="true" enableFragmentCache="true" sendCacheControlHeader = "true" omitVaryStar="false">
</outputCache>
*/
public sealed class OutputCacheSection : ConfigurationSection {
internal const bool DefaultOmitVaryStar = false;
private static ConfigurationPropertyCollection _properties;
private static readonly ConfigurationProperty _propEnableOutputCache =
new ConfigurationProperty("enableOutputCache",
typeof(bool),
true,
ConfigurationPropertyOptions.None);
private static readonly ConfigurationProperty _propEnableFragmentCache =
new ConfigurationProperty("enableFragmentCache",
typeof(bool),
true,
ConfigurationPropertyOptions.None);
private static readonly ConfigurationProperty _propSendCacheControlHeader =
new ConfigurationProperty("sendCacheControlHeader",
typeof(bool),
HttpRuntimeSection.DefaultSendCacheControlHeader,
ConfigurationPropertyOptions.None);
private static readonly ConfigurationProperty _propOmitVaryStar =
new ConfigurationProperty("omitVaryStar",
typeof(bool),
DefaultOmitVaryStar,
ConfigurationPropertyOptions.None);
private static readonly ConfigurationProperty _propEnableKernelCacheForVaryByStar =
new ConfigurationProperty("enableKernelCacheForVaryByStar",
typeof(bool),
false,
ConfigurationPropertyOptions.None);
private static readonly ConfigurationProperty _propDefaultProviderName =
new ConfigurationProperty("defaultProvider",
typeof(String),
OutputCache.ASPNET_INTERNAL_PROVIDER_NAME, //defaultValue
null,
StdValidatorsAndConverters.NonEmptyStringValidator,
ConfigurationPropertyOptions.None);
private static readonly ConfigurationProperty _propProviders =
new ConfigurationProperty("providers",
typeof(ProviderSettingsCollection),
null, // defaultValue
ConfigurationPropertyOptions.None);
private bool sendCacheControlHeaderCached = false;
private bool sendCacheControlHeaderCache;
private bool omitVaryStarCached = false;
private bool omitVaryStar;
private bool enableKernelCacheForVaryByStarCached = false;
private bool enableKernelCacheForVaryByStar;
private bool enableOutputCacheCached = false;
private bool enableOutputCache;
static OutputCacheSection() {
// Property initialization
_properties = new ConfigurationPropertyCollection();
_properties.Add(_propEnableOutputCache);
_properties.Add(_propEnableFragmentCache);
_properties.Add(_propSendCacheControlHeader);
_properties.Add(_propOmitVaryStar);
_properties.Add(_propEnableKernelCacheForVaryByStar);
_properties.Add(_propDefaultProviderName);
_properties.Add(_propProviders);
}
public OutputCacheSection() {
}
protected override ConfigurationPropertyCollection Properties {
get {
return _properties;
}
}
[ConfigurationProperty("enableOutputCache", DefaultValue = true)]
public bool EnableOutputCache {
get {
if (enableOutputCacheCached == false) {
enableOutputCache = (bool)base[_propEnableOutputCache];
enableOutputCacheCached = true;
}
return enableOutputCache;
}
set {
base[_propEnableOutputCache] = value;
enableOutputCache = value;
}
}
[ConfigurationProperty("enableFragmentCache", DefaultValue = true)]
public bool EnableFragmentCache {
get {
return (bool)base[_propEnableFragmentCache];
}
set {
base[_propEnableFragmentCache] = value;
}
}
[ConfigurationProperty("sendCacheControlHeader", DefaultValue = HttpRuntimeSection.DefaultSendCacheControlHeader)]
public bool SendCacheControlHeader {
get {
if (sendCacheControlHeaderCached == false) {
sendCacheControlHeaderCache = (bool)base[_propSendCacheControlHeader];
sendCacheControlHeaderCached = true;
}
return sendCacheControlHeaderCache;
}
set {
base[_propSendCacheControlHeader] = value;
sendCacheControlHeaderCache = value;
}
}
[ConfigurationProperty("omitVaryStar", DefaultValue = DefaultOmitVaryStar)]
public bool OmitVaryStar {
get {
if (omitVaryStarCached == false) {
omitVaryStar = (bool)base[_propOmitVaryStar];
omitVaryStarCached = true;
}
return omitVaryStar;
}
set {
base[_propOmitVaryStar] = value;
omitVaryStar = value;
}
}
[ConfigurationProperty("enableKernelCacheForVaryByStar", DefaultValue = false)]
public bool EnableKernelCacheForVaryByStar {
get {
if (enableKernelCacheForVaryByStarCached == false) {
enableKernelCacheForVaryByStar = (bool)base[_propEnableKernelCacheForVaryByStar];
enableKernelCacheForVaryByStarCached = true;
}
return enableKernelCacheForVaryByStar;
}
set {
base[_propEnableKernelCacheForVaryByStar] = value;
enableKernelCacheForVaryByStar = value;
}
}
[ConfigurationProperty("defaultProvider", DefaultValue = OutputCache.ASPNET_INTERNAL_PROVIDER_NAME)]
[StringValidator(MinLength = 1)]
public String DefaultProviderName {
get {
return (string) base[_propDefaultProviderName];
}
set {
base[_propDefaultProviderName] = value;
}
}
[ConfigurationProperty("providers")]
public ProviderSettingsCollection Providers {
get {
return (ProviderSettingsCollection)base[_propProviders];
}
}
[PermissionSet(SecurityAction.Assert, Unrestricted = true)]
internal OutputCacheProviderCollection CreateProviderCollection() {
// if there are no providers defined, we'll default to the v2.0 OutputCache
ProviderSettingsCollection providers = Providers;
if (providers == null || providers.Count == 0) {
return null;
}
OutputCacheProviderCollection collection = new OutputCacheProviderCollection();
ProvidersHelper.InstantiateProviders(providers, collection, typeof(OutputCacheProvider));
collection.SetReadOnly();
return collection;
}
internal OutputCacheProvider GetDefaultProvider(OutputCacheProviderCollection providers) {
// if defaultProvider is undefined, we'll default to the v2.0 OutputCache
string defaultProviderName = DefaultProviderName;
if (defaultProviderName == OutputCache.ASPNET_INTERNAL_PROVIDER_NAME) {
return null;
}
// if the defaultProvider is defined, it must be in the providers collection
OutputCacheProvider defaultProvider = (providers == null) ? null : providers[defaultProviderName];
if (defaultProvider == null) {
throw new ConfigurationErrorsException(SR.GetString(SR.Def_provider_not_found),
ElementInformation.Properties["defaultProvider"].Source,
ElementInformation.Properties["defaultProvider"].LineNumber);
}
return defaultProvider;
}
}
}
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