The patch removes a small race condition where a boolean flag is set after acquiring a lock to
indicate to code executing in the finally {} block that it should release the lock. The boolean
variable is now removed and the lock is released unconditionally. It carries a potential to
throw an exception when the lock is not held, but it's better than to fail to release it and
lead the application to a deadlock.

WebConfigurationHost now supports one more parameter passed to it in InitForConfiguration -
a boolean telling whether the configuration being initialized belongs to another app. If it is
true then the virtual path passed to InitForConfiguration is used as the application virtual
path. This has the effect that IsDefinitionAllowed doesn't throw an exception when a configuration
element with the MachineToApplication level is parsed.
WebConfigurationManager.FindWebConfig checks whether the path passed to it belongs to this application
which allows the mechanism described in the first paragraph to work.

	* WebConfigurationManager.cs: GetSection properly processes paths
	of form '~'. Fixes bug #595140. Patch from Adriaan van Kekem
	<avkekem@hotmail.com>, thanks!

svn path=/trunk/mcs/; revision=155140

Author: Marek Habersack <mhabersack@novell.com>
Date:   Sat Mar 6 03:37:53 2010 +0100

    2010-03-06  Marek Habersack  <mhabersack@novell.com>

    	* CompilerCollection.cs: in the 4.0 profile, the latest C#
    	standard is the compiler's default.

    2010-03-06  Marek Habersack  <mhabersack@novell.com>

    	* CSharpCodeCompiler.cs: in the 4.0 profile, the latest C#
    	standard is the default one.

    2010-03-06  Marek Habersack  <mhabersack@novell.com>

    	* RequestValidatorTestGenerated.cs: added

    	* RequestValidator.cs: added

    2010-03-06  Marek Habersack  <mhabersack@novell.com>

    	* TestWorkerRequest.cs: added overloads of GetRawUrl and
    	GetUriPath which make sure that the returned paths do not contain
    	more than one leading / character.

    	* TestRunItem.cs: added new TestRunData property - to contain
    	per-appdomain test run data.

    	* TestCallback.cs: added a TestRunItem parameter.

    	* StandaloneTest.cs: runner object is created for each test item
    	now.
    	Added test progress feedback.

    	* ITestRunner.cs: added two properties, TestRunData - to return
    	collected test result data, if any, and Domain which returns the
    	current AppDomain.

    2010-03-06  Marek Habersack  <mhabersack@novell.com>

    	* RequestValidatorTest.cs: added

    2010-03-06  Marek Habersack  <mhabersack@novell.com>

    	* HttpRequest.cs: cache RawUrl value.
    	Added new internal property, PathNoValidation, which returns
    	request path without validating it.
    	Implemented 4.0 extensible validation.

    	* HttpApplication.cs: Pipeline () validates the request path, if
    	new validation mode is enabled, before doing anything else.
    	Added a generic LoadType overload which checks whether the loaded
    	type, if any, derives from the type specified in the method's
    	specialization.

    2010-03-06  Marek Habersack  <mhabersack@novell.com>

    	* RequestValidator.cs: added

    	* RequestValidationSource.cs: added

    2010-03-06  Marek Habersack  <mhabersack@novell.com>

    	* WebConfigurationManager.cs: do not use Request.Path - it may
    	fail because of invalid web.config file, use
    	Request.PathNoValidation instead.

    	* VersionConverter.cs: added

    	* PropertyHelper.cs: added a Version converter helper.

    	* HttpRuntimeSection.cs: added 4.0 properties -
    	RequestPathInvalidCharacters, RequestValidationType and
    	RequestValidationMode.

svn path=/trunk/mcs/; revision=153172

	* BuildManager.cs: do less work in the static constructor

2010-03-04  Marek Habersack  <mhabersack@novell.com>

	* RuntimeHelpers.cs: added. Contains methods moved here from
	HttpRuntime, so that initialization sequence of various objects is
	independent of HttpRuntime.

2010-03-04  Marek Habersack  <mhabersack@novell.com>

	* HttpRuntime.cs: do less work in the static constructor. Most of
	the code was moved to System.Web.Util.RuntimeHelpers. Properties
	which have been moved: MonoVersion, RunningOnWindows,
	CaseInsensitive, IsDebuggingEnabled

Also:
	- hushed some compiler warnings
	- various classes now use RuntimeHelpers instead of HttpRuntime

svn path=/trunk/mcs/; revision=153038

	* WebConfigurationManager.cs: GetSection properly handles looking
	up and caching of <location> instances. Part of fix for bug
	#568441

	* WebConfigurationHost.cs: GetConfigPathFromLocationSubPath
	calculatesthe path relative to the current config file path. Part
	of fix for bug #568441

2010-01-09  Marek Habersack  <mhabersack@novell.com>

	* VirtualPathUtility.cs: small optimizations for GetDirectory

2010-01-09  Marek Habersack  <mhabersack@novell.com>

	* ConfigurationLocation.cs: trailing / characters are removed from
	the path.

	* Configuration.cs: instances created for locations inherit
	ConfigPath from their containing document.
	Host.GetConfigPathFromLocationSubPath must be called with current
	instance's configPath, not LocationConfigPath.
	Locations are sought for using paths relative to the current
	instance's configPath, not to the root path.
	All of the above is part of fix for bug #568441

svn path=/trunk/mcs/; revision=149262

	* WebConfigurationManager.cs: use an rw lock to protect access to
	sectionCache. This is now necessary as the save handler clears the
	cache.

svn path=/trunk/mcs/; revision=146525

	* TemplateParser.cs: AddImports is called from LoadConfigDefaults
	so that it reads configuration from the correct .config file (it
	needs to be called after this.VirtualPath has been
	initialized). Fixes an issue with MVC apps which put configuration
	in Views/web.config etc. Fixes bug #552457

	* ControlBuilder.cs, Page.cs: system.web/pages section is not
	confined to the top-level web.config

2009-11-10  Marek Habersack  <mhabersack@novell.com>

	* WebConfigurationManager.cs: path passed to OpenWebConfiguration
	from GetSection does not come from FindWebConfig.

2009-11-10  Marek Habersack  <mhabersack@novell.com>

	* BaseCompiler.cs: parser.Imports is a Dictionary <>/Hashtable
	now.

	* AspComponentFoundry.cs: system.web/pages section is not confined
	to the top-level web.config

svn path=/trunk/mcs/; revision=145831

	* WebConfigurationManager.cs: there's no need to cache sections by
	_file_ path - using section name and web.config path is more than
	enough and it reduces the number of cache entries
	considerably. Fixes bug #550730

svn path=/trunk/mcs/; revision=145721

	* WebConfigurationManager.cs: GetSection doesn't perform string +
	char + string concatenation to generate section cache key (by
	Gonzalo Paniagua Javier) which gives an enormous performance boost
	(processing time for mojoportal's default.aspx went down from
	2.65s to 107ms on average). The key generation is performed
	without any kind of string operation right now (except for
	GetHashCode on 3 strings).
	GetSectionCacheKey is called only once and sectionCache became a
	dictionary.

svn path=/trunk/mcs/; revision=143611

	* WebConfigurationManager.cs: GetSection does not use
	FindWebConfig to get the virtual path to open configuration for -
	doing so would make the configuration system ignore <location>
	sections. Fixes bug #482181

svn path=/trunk/mcs/; revision=140375

svn path=/trunk/mcs/; revision=138529

	* WebConfigurationManager.cs: avoid possible infinite loop when the
	path starts with ~ and 1 file check.


svn path=/trunk/mcs/; revision=138495

	* WebConfigurationManager.cs: another approach to suppressing
	application reloads after the app writes to its root web.config
	file. Leaving the previous code in place to get more
	protection. It's a kludge, but it's the best option to avoid
	all the races caused by System.Configuration+FileSystemWatcher
	without rewriting large parts of System.Configuration (and
	System.Web.Configuration). Fixes bug #522017

2009-07-15  Marek Habersack  <mhabersack@novell.com>

	* Configuration.cs: explicitly flush the stream when writing XML
	data. Part of fix for bug #522017

2009-07-15  Marek Habersack  <mhabersack@novell.com>

	* HttpApplicationFactory.cs: added internal methods to
	enable/disable specific watchers. Part of fix for bug #522017

svn path=/trunk/mcs/; revision=137951

	* WebConfigurationManager.cs: added support for suppressing
	application reload when the main config file is written to from
	application.

	* WebConfigurationHost.cs: added minimal implementation of
	WriteCompleted, which checks if there's need to suppress
	application reload.

2009-07-14  Marek Habersack  <mhabersack@novell.com>

	* ConfigurationSaveEventArgs.cs, ConfigurationSaveEventHandler.cs:
	added

	* Configuration.cs: added two internal events - SaveStart and
	SaveEnd. They are used by System.Web's configuration system to
	suppress application reloads when configuration is modified and
	saved from within a web application. It is necessary to use events
	since there is no guarantee the web application will use
	WebConfigurationManager (and thus WebConfigurationHost) for
	writing.

2009-07-14  Marek Habersack  <mhabersack@novell.com>

	* System.Configuration.dll.sources: added
	System.Configuration/ConfigurationSaveEventArgs.cs
	System.Configuration/ConfigurationSaveEventHandler.cs

2009-07-14  Marek Habersack  <mhabersack@novell.com>

	* AssemblyInfo.cs: added InternalsVisibleTo for System.Web

2009-07-14  Marek Habersack  <mhabersack@novell.com>

	* HttpApplicationFactory.cs: OnFileChanged doesn't reload
	application if reload suppression is active.

svn path=/trunk/mcs/; revision=137847

	* WebConfigurationHost.cs: null means MachineToApplication.
	* WebConfigurationManager.cs: when caching configuration and sections,
	use the configuration file directory instead of the incoming request
	path.


svn path=/trunk/mcs/; revision=137632

	* VirtualPathUtility.cs: IsValidVirtualPath no longer uses
	WebConfigurationManager.GetSection to retrieve the verification
	setting. Instead, the setting is retrieved in the static
	constructor.

	* HttpRequest.cs: ApplyUrlMapping must not use
	WebConfigurationManager.GetSection as it would cause a recursive
	call loop. Code to detect whether url mappings are in effect has
	been moved to a static constructor.

2009-06-05  Marek Habersack  <mhabersack@novell.com>

	* Page.cs: InitializeTheme uses WebConfigurationManager.GetSection
	to retrieve page theme name. GetWebApplicationSection cannot be
	used because the system.web/pages section is valid also in
	subdirectories. Fixes bug #510302

2009-06-05  Marek Habersack  <mhabersack@novell.com>

	* WebConfigurationManager.cs: OpenWebConfiguration caches
	configurations with a key generated from all the parameters passed
	to it, not just from path.
	Added internal GetSection method which takes HttpContext as its
	third parameter - used in calling OpenWebConfiguration.
	FindWebConfig is no longer used in GetSection - it breaks handling
	of <location> elements in config files. Fixes bug #510302

svn path=/trunk/mcs/; revision=135558

	* WebConfigurationManager.cs: added code in the static constructor
	to enable retrieving application settings via
	ApplicationSettingsBase from within asp.net applications. Fixes
	bug #491531

	* ApplicationSettingsConfigurationFileMap.cs: added.

2009-04-03  Marek Habersack  <mhabersack@novell.com>

	* CustomizableFileSettingsProvider.cs: added a way for System.Web
	to specify path to the current Web.config. Fixes bug #491531

svn path=/trunk/mcs/; revision=130909

	* WebConfigurationManager.cs: optimized GetWebApplicationSection a
	bit

svn path=/trunk/mcs/; revision=128278

	* WebConfigurationManager.cs: make sure no nrex happens in
	GetSectionCacheKey ()

svn path=/trunk/mcs/; revision=128251

	* WebConfigurationManager.cs: generate a hash from the string hsah
	codes instead of concatenating them.


svn path=/trunk/mcs/; revision=128121

	* WebConfigurationManager.cs: do not normalize the path in
	FindWebConfig when getting the virtual directory.

svn path=/trunk/mcs/; revision=122844

	* WebConfigurationManager.cs: improve performance of
	FindWebConfig.

svn path=/trunk/mcs/; revision=122730

        * WebConfigurationManager.cs: A better version of the previous
        GetSection fix. Right now the method searches for directories
        containing web.config and uses them, if found, to open the web
        configuration. If no web.config is found, web configuration is
        opened for the root application directory.

        * WebConfigurationHost.cs: made GetWebConfigFileName internal
        static, so that code can be reused from WebConfigurationManager.

svn path=/trunk/mcs/; revision=122124

	* NunitWeb/Makefile (NunitWeb.dll): added NunitWeb/CustomSection.cs

	* NunitWebResources/CustomSectionEmptyCollection.aspx: added

2008-12-23  Marek Habersack  <mhabersack@novell.com>

	* WebConfigurationManagerTest.cs: added new test.

2008-12-23  Marek Habersack  <mhabersack@novell.com>

	* CustomSection.cs: added. Implementation of custom configuration
	elements for WebConfigurationManager tests.

2008-12-23  Marek Habersack  <mhabersack@novell.com>

	* Web.mono.config: added CustomTags section definition, used in
	WebConfiguratioManager tests.

2008-12-23  Marek Habersack  <mhabersack@novell.com>

	* WebConfigurationManager.cs: GetSection should call
	OpenWebConfiguration using the actual directory path, not a file
	path. If it fails to do so, System.Configuration may treat the
	top-level Web.config file as a child one which, in turn, in
	certain circumstances will lead to duplicate keys inserted in
	collections.

2008-12-23  Marek Habersack  <mhabersack@novell.com>

	* Makefile (TEST_RESOURCE_FILES): added Test/mainsoft/NunitWebResources/CustomSectionEmptyCollection.aspx

	* System.Web_test.dll.sources: added mainsoft/NunitWeb/NunitWeb/CustomSection.cs

svn path=/trunk/mcs/; revision=122024

svn path=/branches/mono-2-2/mcs/; revision=121628

svn path=/trunk/mcs/; revision=121599

svn path=/branches/mono-2-2/mcs/; revision=119908

svn path=/branches/mono-2-2/mcs/; revision=119898

	* WebConfigurationManager.cs: fix nullref.


svn path=/trunk/mcs/; revision=119699

	* WebConfigurationManager.cs: don't keep configuration sections for
	files that don't exist on disk.
	Bug #443569 fixed.


svn path=/trunk/mcs/; revision=119378

svn path=/trunk/mcs/; revision=116539

svn path=/trunk/mcs/; revision=111904

svn path=/branches/mainsoft/gh2.2/mcs/; revision=98467

	* WebConfigurationManager.cs: hashtable can contain a key with a
	null value, avoid adding duplicate keys in such cases.

svn path=/trunk/mcs/; revision=96532

svn path=/branches/mainsoft/gh2.2/mcs/; revision=96070

svn path=/trunk/mcs/; revision=96069

svn path=/trunk/mcs/; revision=95139

svn path=/trunk/mcs/; revision=92342

svn path=/trunk/mcs/; revision=91938