public override Task ExecuteResultAsync(ActionContext context)
{
var logger = context.HttpContext.RequestServices.GetRequiredService <ILoggerFactory>().CreateLogger <StaticVirtualFileResult>();
var fileContext = new StaticFileContext(context.HttpContext, _contentTypeProvider, logger, _fileInfo, _contentType);
if (!fileContext.ValidateMethod())
{
LoggerExtensions.LogRequestMethodNotSupported(logger, context.HttpContext.Request.Method);
}
else if (!fileContext.LookupContentType())
{
LoggerExtensions.LogFileTypeNotSupported(logger, fileContext.SubPath);
}
else if (!fileContext.LookupFileInfo())
{
LoggerExtensions.LogFileNotFound(logger, fileContext.SubPath);
}
else
{
// If we get here, we can try to serve the file
fileContext.ComprehendRequestHeaders();
switch (fileContext.GetPreconditionState())
{
case StaticFileContext.PreconditionState.Unspecified:
case StaticFileContext.PreconditionState.ShouldProcess:
if (fileContext.IsHeadMethod)
{
return(fileContext.SendStatusAsync(Constants.Status200Ok));
}
if (fileContext.IsRangeRequest)
{
return(fileContext.SendRangeAsync());
}
LoggerExtensions.LogFileServed(logger, fileContext.SubPath, fileContext.PhysicalPath);
return(fileContext.SendAsync());
case StaticFileContext.PreconditionState.NotModified:
LoggerExtensions.LogPathNotModified(logger, fileContext.SubPath);
return(fileContext.SendStatusAsync(Constants.Status304NotModified));
case StaticFileContext.PreconditionState.PreconditionFailed:
LoggerExtensions.LogPreconditionFailed(logger, fileContext.SubPath);
return(fileContext.SendStatusAsync(Constants.Status412PreconditionFailed));
default:
var exception = new NotImplementedException(fileContext.GetPreconditionState().ToString());
Debug.Fail(exception.ToString());
throw exception;
}
}
return(Task.FromResult(0));
}
public override Task Invoke(IOwinContext context)
{
var path = context.Request.Path.ToString();
var fileContext = new StaticFileContext(context);
if (fileContext.ValidateMethod())
{
var fileInfo = FindFile(path);
if (fileInfo != null)
{
var contentType = FindContentType(path);
fileContext.SetPayload(fileInfo, contentType);
fileContext.ComprehendRequestHeaders();
switch (fileContext.GetPreconditionState())
{
case StaticFileContext.PreconditionState.Unspecified:
case StaticFileContext.PreconditionState.ShouldProcess:
if (fileContext.IsHeadMethod)
{
return(fileContext.SendStatusAsync(Constants.Status200Ok));
}
return(fileContext.SendAsync());
case StaticFileContext.PreconditionState.NotModified:
return(fileContext.SendStatusAsync(Constants.Status304NotModified));
case StaticFileContext.PreconditionState.PreconditionFailed:
return(fileContext.SendStatusAsync(Constants.Status412PreconditionFailed));
default:
throw new NotImplementedException(fileContext.GetPreconditionState().ToString());
}
}
}
return(Next.Invoke(context));
}