private async Task <IActionResult> TryServePackageFileAsync(string package, PackageFile packageFile, string version = null)
{
if (string.IsNullOrWhiteSpace(package))
{
return(BadRequest(new { Message = "Package name required." }));
}
// FIXME: duplicate code
if (Request.Headers.TryGetValue(HeaderNames.IfNoneMatch, out var etag))
{
var resources = await _packages.GetAvailablePackagesAsync(CancellationToken);
foreach (var hash in etag)
{
if (resources.Contains(hash))
{
return(StatusCode((int)HttpStatusCode.NotModified));
}
}
}
var(error, buildHash) = await TryGetBuildHash(version);
if (error != null)
{
return(error);
}
var assembly = await _packages.FindAssemblyByNameAsync(package, CancellationToken);
if (assembly == null)
{
return(NotFound(new { Message = $"No package assemblies found matching name '{package}." }));
}
var packageHash = assembly.ComputePackageHash(buildHash);
var packages = await _packages.GetAvailablePackagesAsync(CancellationToken);
if (packages.Contains(packageHash))
{
var file = await ServePackageFileAsync(packageHash, packageFile, CancellationToken);
if (!(file is NotFoundObjectResult))
{
return(file); // try to re-compile if we ran into an issue earlier
}
}
var result = await _packages.CompilePackageAsync(assembly, buildHash, CancellationToken);
if (!result.Successful)
{
return(StatusCode((int)HttpStatusCode.InternalServerError, new { Message = "Package compile error." }));
}
return(await ServePackageFileAsync(packageHash, packageFile, CancellationToken));
}