/// <summary>
/// Gets the Razor page for an input document stream. This is roughly modeled on
/// DefaultRazorPageFactory and CompilerCache. Note that we don't actually bother
/// with caching the page if it's from a live stream.
/// </summary>
private IRazorPage GetPageFromStream(IServiceProvider serviceProvider, RenderRequest request)
{
string relativePath = request.RelativePath;
if (relativePath.StartsWith("~/", StringComparison.Ordinal))
{
// For tilde slash paths, drop the leading ~ to make it work with the underlying IFileProvider.
relativePath = relativePath.Substring(1);
}
// Get the file info by combining the stream content with info found at the document's original location (if any)
WyamRazorProjectFileSystem projectFileSystem = serviceProvider.GetRequiredService <WyamRazorProjectFileSystem>();
RazorProjectItem projectItem = projectFileSystem.GetItem(relativePath, request.Input);
// Compute a hash for the content since pipelines could have changed it from the underlying file
// We have to pre-compute the hash (I.e., no CryptoStream) since we need to check for a hit before reading/compiling the view
byte[] hash = SHA512.Create().ComputeHash(request.Input);
request.Input.Position = 0;
CompilationResult compilationResult = CompilePage(serviceProvider, request, hash, projectItem, projectFileSystem);
IRazorPage result = compilationResult.GetPage(request.RelativePath);
return(result);
}
/// <summary>
/// Gets the view for an input document (which is different than the view for a layout, partial, or
/// other indirect view because it's not necessarily on disk or in the file system).
/// </summary>
private IView GetViewFromStream(IServiceProvider serviceProvider, RenderRequest request, IRazorPage page)
{
WyamRazorProjectFileSystem projectFileSystem = serviceProvider.GetRequiredService <WyamRazorProjectFileSystem>();
IEnumerable <string> viewStartLocations = request.ViewStartLocation != null
? new[] { request.ViewStartLocation }
: projectFileSystem.FindHierarchicalItems(request.RelativePath, ViewStartFileName).Select(x => x.FilePath);
List <IRazorPage> viewStartPages = viewStartLocations
.Select(serviceProvider.GetRequiredService <IRazorPageFactoryProvider>().CreateFactory)
.Where(x => x.Success)
.Select(x => x.RazorPageFactory())
.Reverse()
.ToList();
if (request.LayoutLocation != null)
{
page.Layout = request.LayoutLocation;
}
IRazorViewEngine viewEngine = serviceProvider.GetRequiredService <IRazorViewEngine>();
IRazorPageActivator pageActivator = serviceProvider.GetRequiredService <IRazorPageActivator>();
HtmlEncoder htmlEncoder = serviceProvider.GetRequiredService <HtmlEncoder>();
DiagnosticSource diagnosticSource = serviceProvider.GetRequiredService <DiagnosticSource>();
return(new RazorView(viewEngine, pageActivator, viewStartPages, page, htmlEncoder, diagnosticSource));
}
