/// <inheritdoc />
public override async Task <bool> PackageExistsAsync(PackageURL purl, bool useCache = true)
{
Logger.Trace("PackageExists {0}", purl?.ToString());
if (string.IsNullOrEmpty(purl?.Name))
{
Logger.Trace("Provided PackageURL was null.");
return(false);
}
string packageName = purl.GetFullName();
HttpClient httpClient = CreateHttpClient();
return(await CheckJsonCacheForPackage(httpClient, $"{ENV_NPM_API_ENDPOINT}/{packageName}", useCache));
}
/// <inheritdoc />
public override async Task <IEnumerable <string> > EnumerateVersionsAsync(PackageURL purl, bool useCache = true, bool includePrerelease = true)
{
Logger.Trace("EnumerateVersions {0}", purl?.ToString());
if (purl?.Name is null)
{
return(new List <string>());
}
try
{
string packageName = purl.GetFullName();
HttpClient httpClient = CreateHttpClient();
JsonDocument doc = await GetJsonCache(httpClient, $"{ENV_NPM_API_ENDPOINT}/{purl.GetFullName(encoded: true)}", useCache);
List <string> versionList = new();
foreach (JsonProperty versionKey in doc.RootElement.GetProperty("versions").EnumerateObject())
{
Logger.Debug("Identified {0} version {1}.", packageName, versionKey.Name);
versionList.Add(versionKey.Name);
}
string?latestVersion = doc.RootElement.GetProperty("dist-tags").GetProperty("latest").GetString();
// If there was no "latest" property for some reason.
if (string.IsNullOrWhiteSpace(latestVersion))
{
return(SortVersions(versionList.Distinct()));
}
Logger.Debug("Identified {0} latest version as {1}.", packageName, latestVersion);
// Remove the latest version from the list of versions, so we can add it after sorting.
versionList.Remove(latestVersion);
// Sort the list of distinct versions.
List <string> sortedList = SortVersions(versionList.Distinct()).ToList();
// Insert the latest version at the beginning of the list.
sortedList.Insert(0, latestVersion);
return(sortedList);
}
catch (Exception ex)
{
Logger.Debug("Unable to enumerate versions: {0}", ex.Message);
throw;
}
}