/// <summary>
/// Gets a read-only list of package owners from an optional nuget-package-owners attribute.
/// </summary>
/// <param name="signedAttributes">A <see cref="SignerInfo" /> signed attributes collection.</param>
/// <returns>A read-only list of package owners or <c>null</c>.</returns>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="signedAttributes" /> is <c>null</c>.</exception>
/// <exception cref="SignatureException">Thrown if the attribute does not contain exactly one
/// attribute value.</exception>
public static IReadOnlyList <string> GetNuGetPackageOwners(CryptographicAttributeObjectCollection signedAttributes)
{
if (signedAttributes == null)
{
throw new ArgumentNullException(nameof(signedAttributes));
}
var attribute = signedAttributes.GetAttribute(Oids.NuGetPackageOwners);
if (attribute == null)
{
return(null);
}
if (attribute.Values.Count != 1)
{
throw new SignatureException(
string.Format(
CultureInfo.CurrentCulture,
Strings.ExactlyOneAttributeValueRequired,
"nuget-package-owners"));
}
var nugetPackageOwners = NuGetPackageOwners.Read(attribute.Values[0].RawData);
return(nugetPackageOwners.PackageOwners);
}
/// <summary>
/// Gets the V3 service index HTTPS URL from the nuget-v3-service-index-url attribute.
/// </summary>
/// <param name="signedAttributes">A <see cref="SignerInfo" /> signed attributes collection.</param>
/// <returns>The V3 service index HTTPS URL.</returns>
/// <exception cref="ArgumentNullException">Thrown if <paramref name="signedAttributes" />
/// is <c>null</c>.</exception>
/// <exception cref="SignatureException">Thrown if either exactly one attribute is not present or if
/// the attribute does not contain exactly one attribute value.</exception>
public static Uri GetNuGetV3ServiceIndexUrl(CryptographicAttributeObjectCollection signedAttributes)
{
if (signedAttributes == null)
{
throw new ArgumentNullException(nameof(signedAttributes));
}
const string attributeName = "nuget-v3-service-index-url";
var attribute = signedAttributes.GetAttribute(Oids.NuGetV3ServiceIndexUrl);
if (attribute == null)
{
throw new SignatureException(
string.Format(
CultureInfo.CurrentCulture,
Strings.ExactlyOneAttributeRequired,
attributeName));
}
if (attribute.Values.Count != 1)
{
throw new SignatureException(
string.Format(
CultureInfo.CurrentCulture,
Strings.ExactlyOneAttributeValueRequired,
attributeName));
}
var nugetV3ServiceIndexUrl = NuGetV3ServiceIndexUrl.Read(attribute.Values[0].RawData);
return(nugetV3ServiceIndexUrl.V3ServiceIndexUrl);
}