internal static void ExecuteStartPageInternal(
HttpApplication application,
Action <string> monitorFile,
IVirtualPathFactory virtualPathFactory,
IEnumerable <string> supportedExtensions
)
{
ApplicationStartPage startPage = null;
foreach (var extension in supportedExtensions)
{
var vpath = StartPageVirtualPath + extension;
// We need to monitor regardless of existence because the user could add/remove the
// file at any time.
monitorFile(vpath);
if (!virtualPathFactory.Exists(vpath))
{
continue;
}
if (startPage == null)
{
startPage = virtualPathFactory.CreateInstance <ApplicationStartPage>(vpath);
startPage.Application = application;
startPage.VirtualPathFactory = virtualPathFactory;
startPage.ExecuteInternal();
}
}
}
internal static void ExecuteStartPageInternal(HttpApplication application, Action<string> monitorFile, IVirtualPathFactory virtualPathFactory, IEnumerable<string> supportedExtensions)
{
ApplicationStartPage startPage = null;
foreach (var extension in supportedExtensions)
{
var vpath = StartPageVirtualPath + extension;
// We need to monitor regardless of existence because the user could add/remove the
// file at any time.
monitorFile(vpath);
if (!virtualPathFactory.Exists(vpath))
{
continue;
}
if (startPage == null)
{
startPage = virtualPathFactory.CreateInstance<ApplicationStartPage>(vpath);
startPage.Application = application;
startPage.VirtualPathFactory = virtualPathFactory;
startPage.ExecuteInternal();
}
}
}
internal static IHttpHandler CreateFromVirtualPath(
string virtualPath,
IVirtualPathFactory virtualPathFactory
)
{
// We will try to create a WebPage from our factory. If this fails, we assume that the virtual path maps to an IHttpHandler.
// Instantiate the page from the virtual path
WebPage page = virtualPathFactory.CreateInstance <WebPage>(virtualPath);
// If it's not a page, assume it's a regular handler
if (page == null)
{
return(virtualPathFactory.CreateInstance <IHttpHandler>(virtualPath));
}
// Mark it as a 'top level' page (as opposed to a user control or master)
page.TopLevelPage = true;
// Give it its virtual path
page.VirtualPath = virtualPath;
// Assign it the object factory
page.VirtualPathFactory = virtualPathFactory;
// Return a handler over it
return(new WebPageHttpHandler(page));
}
public TResource CreateInstance <TResource>(string virtualPath)
{
IVirtualPathFactory factory = _factories.FirstOrDefault(f => f.Exists(virtualPath));
if (factory != null)
{
return((TResource)factory.CreateInstance(virtualPath));
}
return((TResource)_defaultFactory(virtualPath, typeof(TResource)));
}
internal static WebPageRenderingBase GetStartPage(
WebPageRenderingBase page,
IVirtualPathFactory virtualPathFactory,
string appDomainAppVirtualPath,
string fileName,
IEnumerable <string> supportedExtensions
)
{
// Build up a list of pages to execute, such as one of the following:
// ~/somepage.cshtml
// ~/_pageStart.cshtml --> ~/somepage.cshtml
// ~/_pageStart.cshtml --> ~/sub/_pageStart.cshtml --> ~/sub/somepage.cshtml
WebPageRenderingBase currentPage = page;
var pageDirectory = VirtualPathUtility.GetDirectory(page.VirtualPath);
// Start with the requested page's directory, find the init page,
// and then traverse up the hierarchy to find init pages all the
// way up to the root of the app.
while (
!String.IsNullOrEmpty(pageDirectory) &&
pageDirectory != "/" &&
PathUtil.IsWithinAppRoot(appDomainAppVirtualPath, pageDirectory)
)
{
// Go through the list of supported extensions
foreach (var extension in supportedExtensions)
{
var virtualPath = VirtualPathUtility.Combine(
pageDirectory,
fileName + "." + extension
);
// Can we build a file from the current path?
if (virtualPathFactory.Exists(virtualPath))
{
var parentStartPage = virtualPathFactory.CreateInstance <StartPage>(
virtualPath
);
parentStartPage.VirtualPath = virtualPath;
parentStartPage.ChildPage = currentPage;
parentStartPage.VirtualPathFactory = virtualPathFactory;
currentPage = parentStartPage;
break;
}
}
pageDirectory = currentPage.GetDirectory(pageDirectory);
}
// At this point 'currentPage' is the root-most StartPage (if there were
// any StartPages at all) or it is the requested page itself.
return(currentPage);
}
internal static void ExecuteStartPage(HttpApplication application, Action<string> monitorFile, IVirtualPathFactory virtualPathFactory, IEnumerable<string> supportedExtensions)
{
try
{
ExecuteStartPageInternal(application, monitorFile, virtualPathFactory, supportedExtensions);
}
catch (Exception e)
{
// Throw it as a HttpException so as to
// display the original stack trace information.
Exception = e;
throw new HttpException(null, e);
}
}
public PrecompiledView(
string virtualPath,
Type type,
bool runViewStartPages,
IEnumerable <string> fileExtensions,
IVirtualPathFactory virtualPathFactory,
IViewPageActivator viewPageActivator)
{
this.type = type;
this.virtualPathFactory = virtualPathFactory;
this.virtualPath = virtualPath;
RunViewStartPages = runViewStartPages;
ViewStartFileExtensions = fileExtensions;
this.viewPageActivator = viewPageActivator;
}
public PrecompiledView(
string virtualPath,
Type type,
bool runViewStartPages,
IEnumerable<string> fileExtensions,
IVirtualPathFactory virtualPathFactory,
IViewPageActivator viewPageActivator)
{
this.type = type;
this.virtualPathFactory = virtualPathFactory;
this.virtualPath = virtualPath;
RunViewStartPages = runViewStartPages;
ViewStartFileExtensions = fileExtensions;
this.viewPageActivator = viewPageActivator;
}
public static T CreateInstance <T>(this IVirtualPathFactory factory, string virtualPath) where T : class
{
var virtualPathFactoryManager = factory as VirtualPathFactoryManager;
if (virtualPathFactoryManager != null)
{
return(virtualPathFactoryManager.CreateInstanceOfType <T>(virtualPath));
}
var buildManagerFactory = factory as BuildManagerWrapper;
if (buildManagerFactory != null)
{
return(buildManagerFactory.CreateInstanceOfType <T>(virtualPath));
}
return(factory.CreateInstance(virtualPath) as T);
}
protected override void OnStartProvider()
{
var property = typeof(VirtualPathFactoryManager).GetProperty("Instance", BindingFlags.NonPublic | BindingFlags.Static);
if (property != null)
{
var member = typeof(VirtualPathFactoryManager).GetField("_virtualPathFactories", BindingFlags.NonPublic | BindingFlags.Instance);
if (member != null)
{
var instance = (VirtualPathFactoryManager)property.GetValue(null);
var list = (LinkedList <IVirtualPathFactory>)member.GetValue(instance);
var factory = list.First.Value;
_previousPathFactory = factory;
VirtualPathFactoryManager.RegisterVirtualPathFactory(this);
}
}
}
internal static WebPageRenderingBase GetStartPage(WebPageRenderingBase page, IVirtualPathFactory virtualPathFactory, string appDomainAppVirtualPath,
string fileName, IEnumerable<string> supportedExtensions)
{
// Build up a list of pages to execute, such as one of the following:
// ~/somepage.cshtml
// ~/_pageStart.cshtml --> ~/somepage.cshtml
// ~/_pageStart.cshtml --> ~/sub/_pageStart.cshtml --> ~/sub/somepage.cshtml
WebPageRenderingBase currentPage = page;
var pageDirectory = VirtualPathUtility.GetDirectory(page.VirtualPath);
// Start with the requested page's directory, find the init page,
// and then traverse up the hierarchy to find init pages all the
// way up to the root of the app.
while (!string.IsNullOrEmpty(pageDirectory))
{
// Go through the list of supported extensions
foreach (var extension in supportedExtensions)
{
var virtualPath = VirtualPathUtility.Combine(pageDirectory, fileName + "." + extension);
// Can we build a file from the current path?
if (virtualPathFactory.Exists(virtualPath))
{
var parentStartPage = virtualPathFactory.CreateInstance(virtualPath) as StartPage;
parentStartPage.VirtualPath = virtualPath;
parentStartPage.ChildPage = currentPage;
parentStartPage.VirtualPathFactory = virtualPathFactory;
currentPage = parentStartPage;
break;
}
}
pageDirectory = pageDirectory == "~/"
? null
: VirtualPathUtility.GetDirectory(pageDirectory);
}
// At this point 'currentPage' is the root-most StartPage (if there were
// any StartPages at all) or it is the requested page itself.
return currentPage;
}
private static string GetRouteLevelMatch(string pathValue, IEnumerable<string> supportedExtensions, IVirtualPathFactory virtualPathFactory, HttpContextBase context, DisplayModeProvider displayModeProvider)
{
foreach (string supportedExtension in supportedExtensions)
{
string virtualPath = "~/" + pathValue;
// Only add the extension if it's not already there
if (!virtualPath.EndsWith("." + supportedExtension, StringComparison.OrdinalIgnoreCase))
{
virtualPath += "." + supportedExtension;
}
DisplayInfo virtualPathDisplayInfo = displayModeProvider.GetDisplayInfoForVirtualPath(virtualPath, context, virtualPathFactory.Exists, currentDisplayMode: null);
if (virtualPathDisplayInfo != null)
{
// If there's an exact match on disk, return it unless it starts with an underscore
if (Path.GetFileName(virtualPathDisplayInfo.FilePath).StartsWith("_", StringComparison.OrdinalIgnoreCase))
{
throw new HttpException(404, WebPageResources.WebPageRoute_UnderscoreBlocked);
}
string resolvedVirtualPath = virtualPathDisplayInfo.FilePath;
// Matches are not expected to be virtual paths so remove the ~/ from the match
if (resolvedVirtualPath.StartsWith("~/", StringComparison.OrdinalIgnoreCase))
{
resolvedVirtualPath = resolvedVirtualPath.Remove(0, 2);
}
DisplayModeProvider.SetDisplayMode(context, virtualPathDisplayInfo.DisplayMode);
return resolvedVirtualPath;
}
}
return null;
}
internal static void ExecuteStartPage(
HttpApplication application,
Action <string> monitorFile,
IVirtualPathFactory virtualPathFactory,
IEnumerable <string> supportedExtensions
)
{
try
{
ExecuteStartPageInternal(
application,
monitorFile,
virtualPathFactory,
supportedExtensions
);
}
catch (Exception e)
{
// Throw it as a HttpException so as to
// display the original stack trace information.
Exception = e;
throw new HttpException(null, e);
}
}
internal static WebPageBase CreateInstanceFromVirtualPath(
string virtualPath,
IVirtualPathFactory virtualPathFactory
)
{
// Get the compiled object
try
{
WebPageBase webPage = virtualPathFactory.CreateInstance <WebPageBase>(virtualPath);
// Give it its virtual path
webPage.VirtualPath = virtualPath;
// Assign it the VirtualPathFactory
webPage.VirtualPathFactory = virtualPathFactory;
return(webPage);
}
catch (HttpException e)
{
BuildManagerExceptionUtil.ThrowIfUnsupportedExtension(virtualPath, e);
throw;
}
}
internal static IHttpHandler CreateFromVirtualPath(string virtualPath, IVirtualPathFactory virtualPathFactory)
{
// We will try to create a WebPage from our factory. If this fails, we assume that the virtual path maps to an IHttpHandler.
// Instantiate the page from the virtual path
WebPage page = virtualPathFactory.CreateInstance<WebPage>(virtualPath);
// If it's not a page, assume it's a regular handler
if (page == null)
{
return virtualPathFactory.CreateInstance<IHttpHandler>(virtualPath);
}
// Mark it as a 'top level' page (as opposed to a user control or master)
page.TopLevelPage = true;
// Give it its virtual path
page.VirtualPath = virtualPath;
// Assign it the object factory
page.VirtualPathFactory = virtualPathFactory;
// Return a handler over it
return new WebPageHttpHandler(page);
}
internal void RegisterVirtualPathFactoryInternal(IVirtualPathFactory virtualPathFactory)
{
_virtualPathFactories.AddBefore(_virtualPathFactories.Last, virtualPathFactory);
}
public static void Start(MarkdownPagesOptions options, IVirtualPathFactory virtualPathFactory)
{
WebPageHttpHandlerExtensions.RegisterExtensions(options.MarkdownExtensions.Select(ext => ext.RemoveLeadingDot()));
VirtualPathFactoryManager.RegisterVirtualPathFactory(virtualPathFactory);
}
internal static WebPageMatch MatchRequest(string pathValue, IEnumerable<string> supportedExtensions, IVirtualPathFactory virtualPathFactory, HttpContextBase context, DisplayModeProvider displayModes)
{
string currentLevel = String.Empty;
string currentPathInfo = pathValue;
// We can skip the file exists check and normal lookup for empty paths, but we still need to look for default pages
if (!String.IsNullOrEmpty(pathValue))
{
// If the file exists and its not a supported extension, let the request go through
if (FileExists(pathValue, virtualPathFactory))
{
// TODO: Look into switching to RawURL to eliminate the need for this issue
bool foundSupportedExtension = false;
foreach (string supportedExtension in supportedExtensions)
{
if (pathValue.EndsWith("." + supportedExtension, StringComparison.OrdinalIgnoreCase))
{
foundSupportedExtension = true;
break;
}
}
if (!foundSupportedExtension)
{
return null;
}
}
// For each trimmed part of the path try to add a known extension and
// check if it matches a file in the application.
currentLevel = pathValue;
currentPathInfo = String.Empty;
while (true)
{
// Does the current route level patch any supported extension?
string routeLevelMatch = GetRouteLevelMatch(currentLevel, supportedExtensions, virtualPathFactory, context, displayModes);
if (routeLevelMatch != null)
{
return new WebPageMatch(routeLevelMatch, currentPathInfo);
}
// Try to remove the last path segment (e.g. go from /foo/bar to /foo)
int indexOfLastSlash = currentLevel.LastIndexOf('/');
if (indexOfLastSlash == -1)
{
// If there are no more slashes, we're done
break;
}
else
{
// Chop off the last path segment to get to the next one
currentLevel = currentLevel.Substring(0, indexOfLastSlash);
// And save the path info in case there is a match
currentPathInfo = pathValue.Substring(indexOfLastSlash + 1);
}
}
}
return MatchDefaultFiles(pathValue, supportedExtensions, virtualPathFactory, context, displayModes, currentLevel);
}
public static void RegisterFactory(IVirtualPathFactory factory)
{
Instance.Factories.Add(factory);
}
private static string GetRouteLevelMatch(string pathValue, IEnumerable <string> supportedExtensions, IVirtualPathFactory virtualPathFactory, HttpContextBase context, DisplayModeProvider displayModeProvider)
{
foreach (string supportedExtension in supportedExtensions)
{
string virtualPath = "~/" + pathValue;
// Only add the extension if it's not already there
if (!virtualPath.EndsWith("." + supportedExtension, StringComparison.OrdinalIgnoreCase))
{
virtualPath += "." + supportedExtension;
}
DisplayInfo virtualPathDisplayInfo = displayModeProvider.GetDisplayInfoForVirtualPath(virtualPath, context, virtualPathFactory.Exists, currentDisplayMode: null);
if (virtualPathDisplayInfo != null)
{
// If there's an exact match on disk, return it unless it starts with an underscore
if (Path.GetFileName(virtualPathDisplayInfo.FilePath).StartsWith("_", StringComparison.OrdinalIgnoreCase))
{
throw new HttpException(404, WebPageResources.WebPageRoute_UnderscoreBlocked);
}
string resolvedVirtualPath = virtualPathDisplayInfo.FilePath;
// Matches are not expected to be virtual paths so remove the ~/ from the match
if (resolvedVirtualPath.StartsWith("~/", StringComparison.OrdinalIgnoreCase))
{
resolvedVirtualPath = resolvedVirtualPath.Remove(0, 2);
}
DisplayModeProvider.SetDisplayMode(context, virtualPathDisplayInfo.DisplayMode);
return(resolvedVirtualPath);
}
}
return(null);
}
private static bool FileExists(string virtualPath, IVirtualPathFactory virtualPathFactory)
{
var path = "~/" + virtualPath;
return(virtualPathFactory.Exists(path));
}
private static WebPageMatch MatchDefaultFiles(string pathValue, IEnumerable <string> supportedExtensions, IVirtualPathFactory virtualPathFactory, HttpContextBase context, DisplayModeProvider displayModes, string currentLevel)
{
// If we haven't found anything yet, now try looking for default.* or index.* at the current url
currentLevel = pathValue;
string currentLevelDefault;
string currentLevelIndex;
if (String.IsNullOrEmpty(currentLevel))
{
currentLevelDefault = "default";
currentLevelIndex = "index";
}
else
{
if (currentLevel[currentLevel.Length - 1] != '/')
{
currentLevel += "/";
}
currentLevelDefault = currentLevel + "default";
currentLevelIndex = currentLevel + "index";
}
// Does the current route level match any supported extension?
string defaultMatch = GetRouteLevelMatch(currentLevelDefault, supportedExtensions, virtualPathFactory, context, displayModes);
if (defaultMatch != null)
{
return(new WebPageMatch(defaultMatch, String.Empty));
}
string indexMatch = GetRouteLevelMatch(currentLevelIndex, supportedExtensions, virtualPathFactory, context, displayModes);
if (indexMatch != null)
{
return(new WebPageMatch(indexMatch, String.Empty));
}
return(null);
}
internal static WebPageMatch MatchRequest(string pathValue, IEnumerable <string> supportedExtensions, IVirtualPathFactory virtualPathFactory, HttpContextBase context, DisplayModeProvider displayModes)
{
string currentLevel = String.Empty;
string currentPathInfo = pathValue;
// We can skip the file exists check and normal lookup for empty paths, but we still need to look for default pages
if (!String.IsNullOrEmpty(pathValue))
{
// If the file exists and its not a supported extension, let the request go through
if (FileExists(pathValue, virtualPathFactory))
{
// TODO: Look into switching to RawURL to eliminate the need for this issue
bool foundSupportedExtension = false;
foreach (string supportedExtension in supportedExtensions)
{
if (pathValue.EndsWith("." + supportedExtension, StringComparison.OrdinalIgnoreCase))
{
foundSupportedExtension = true;
break;
}
}
if (!foundSupportedExtension)
{
return(null);
}
}
// For each trimmed part of the path try to add a known extension and
// check if it matches a file in the application.
currentLevel = pathValue;
currentPathInfo = String.Empty;
while (true)
{
// Does the current route level patch any supported extension?
string routeLevelMatch = GetRouteLevelMatch(currentLevel, supportedExtensions, virtualPathFactory, context, displayModes);
if (routeLevelMatch != null)
{
return(new WebPageMatch(routeLevelMatch, currentPathInfo));
}
// Try to remove the last path segment (e.g. go from /foo/bar to /foo)
int indexOfLastSlash = currentLevel.LastIndexOf('/');
if (indexOfLastSlash == -1)
{
// If there are no more slashes, we're done
break;
}
else
{
// Chop off the last path segment to get to the next one
currentLevel = currentLevel.Substring(0, indexOfLastSlash);
// And save the path info in case there is a match
currentPathInfo = pathValue.Substring(indexOfLastSlash + 1);
}
}
}
return(MatchDefaultFiles(pathValue, supportedExtensions, virtualPathFactory, context, displayModes, currentLevel));
}
internal static WebPageBase CreateInstanceFromVirtualPath(string virtualPath, IVirtualPathFactory virtualPathFactory)
{
try
{
WebPageBase instance = VirtualPathFactoryExtensions.CreateInstance<WebPageBase>(virtualPathFactory, virtualPath);
instance.VirtualPath = virtualPath;
instance.VirtualPathFactory = virtualPathFactory;
return instance;
}
catch (HttpException ex)
{
BuildManagerExceptionUtil.ThrowIfUnsupportedExtension(virtualPath, ex);
throw;
}
}
private static WebPageMatch MatchDefaultFiles(string pathValue, IEnumerable<string> supportedExtensions, IVirtualPathFactory virtualPathFactory, HttpContextBase context, DisplayModeProvider displayModes, string currentLevel)
{
// If we haven't found anything yet, now try looking for default.* or index.* at the current url
currentLevel = pathValue;
string currentLevelDefault;
string currentLevelIndex;
if (String.IsNullOrEmpty(currentLevel))
{
currentLevelDefault = "default";
currentLevelIndex = "index";
}
else
{
if (currentLevel[currentLevel.Length - 1] != '/')
{
currentLevel += "/";
}
currentLevelDefault = currentLevel + "default";
currentLevelIndex = currentLevel + "index";
}
// Does the current route level match any supported extension?
string defaultMatch = GetRouteLevelMatch(currentLevelDefault, supportedExtensions, virtualPathFactory, context, displayModes);
if (defaultMatch != null)
{
return new WebPageMatch(defaultMatch, String.Empty);
}
string indexMatch = GetRouteLevelMatch(currentLevelIndex, supportedExtensions, virtualPathFactory, context, displayModes);
if (indexMatch != null)
{
return new WebPageMatch(indexMatch, String.Empty);
}
return null;
}
private static bool FileExists(string virtualPath, IVirtualPathFactory virtualPathFactory)
{
var path = "~/" + virtualPath;
return virtualPathFactory.Exists(path);
}
internal static WebPageBase CreateInstanceFromVirtualPath(string virtualPath, IVirtualPathFactory virtualPathFactory)
{
// Get the compiled object
try
{
WebPageBase webPage = virtualPathFactory.CreateInstance<WebPageBase>(virtualPath);
// Give it its virtual path
webPage.VirtualPath = virtualPath;
// Assign it the VirtualPathFactory
webPage.VirtualPathFactory = virtualPathFactory;
return webPage;
}
catch (HttpException e)
{
BuildManagerExceptionUtil.ThrowIfUnsupportedExtension(virtualPath, e);
throw;
}
}
internal void RegisterVirtualPathFactoryInternal(IVirtualPathFactory virtualPathFactory)
{
_virtualPathFactories.Add(virtualPathFactory);
}
public PrecompiledVirtualPathFactory(Func<string, Type> pathLookup, IVirtualPathFactory backup)
{
PathLookup = pathLookup;
Backup = backup;
}
internal VirtualPathFactoryManager(IVirtualPathFactory defaultFactory)
{
_virtualPathFactories.AddFirst(defaultFactory);
}
public PrecompiledVirtualPathFactory(Func <string, Type> pathLookup, IVirtualPathFactory backup)
{
PathLookup = pathLookup;
Backup = backup;
}
public static void RegisterVirtualPathFactory(IVirtualPathFactory virtualPathFactory)
{
Instance.RegisterVirtualPathFactoryInternal(virtualPathFactory);
}
