public IEnumerable <Mutation> Generate(PackageURL arg)
{
if (!arg.HasNamespace())
{
yield break;
}
yield return(this.Generate(arg.ToString()).Single()); // Should only ever have one mutation.
}
/// <inheritdoc />
public override IEnumerable <ArtifactUri <NPMArtifactType> > GetArtifactDownloadUris(PackageURL purl)
{
string feedUrl = (purl.Qualifiers?["repository_url"] ?? ENV_NPM_API_ENDPOINT).EnsureTrailingSlash();
string artifactUri = purl.HasNamespace() ?
$"{feedUrl}{purl.GetNamespaceFormatted()}/{purl.Name}/-/{purl.Name}-{purl.Version}.tgz" : // If there's a namespace.
$"{feedUrl}{purl.Name}/-/{purl.Name}-{purl.Version}.tgz"; // If there isn't a namespace.
yield return(new ArtifactUri <NPMArtifactType>(NPMArtifactType.Tarball, artifactUri));
}
/// <inheritdoc />
public override async Task <string?> GetMetadataAsync(PackageURL purl, bool useCache = true)
{
try
{
string? packageName = purl.HasNamespace() ? $"{purl.GetNamespaceFormatted()}/{purl.Name}" : purl.Name;
HttpClient httpClient = CreateHttpClient();
string?content = await GetHttpStringCache(httpClient, $"{ENV_NPM_API_ENDPOINT}/{packageName}", useCache);
return(content);
}
catch (Exception ex)
{
Logger.Debug(ex, $"Error fetching NPM metadata: {ex.Message}");
return(null);
}
}
public override Uri GetPackageAbsoluteUri(PackageURL purl)
{
return(new Uri(ENV_NPM_API_ENDPOINT.EnsureTrailingSlash() + (purl.HasNamespace() ? $"{purl.GetNamespaceFormatted()}/{purl.Name}" : purl.Name)));
}