/// <summary> /// Add a signature to a package. /// </summary> public static Task SignAsync(SigningOptions options, SignPackageRequest signRequest, CancellationToken token) => throw new NotImplementedException();
/// <summary>
/// Add a signature to a package.
/// </summary>
public static async Task SignAsync(SigningOptions options, SignPackageRequest signRequest, CancellationToken token)
{
token.ThrowIfCancellationRequested();
Verify(signRequest, options.Logger);
var tempPackageFile = new FileInfo(Path.GetTempFileName());
Stream unsignedPackageStream = null;
var signaturePlacement = SignaturePlacement.PrimarySignature;
try
{
PrimarySignature primarySignature;
var isSigned = false;
using (var package = new SignedPackageArchive(options.InputPackageStream, Stream.Null))
{
if (await package.IsZip64Async(token))
{
throw new SignatureException(NuGetLogCode.NU3006, Strings.ErrorZip64NotSupported);
}
primarySignature = await package.GetPrimarySignatureAsync(token);
isSigned = primarySignature != null;
if (signRequest.SignatureType == SignatureType.Repository && primarySignature != null)
{
if (primarySignature.Type == SignatureType.Repository)
{
throw new SignatureException(NuGetLogCode.NU3033, Strings.Error_RepositorySignatureMustNotHaveARepositoryCountersignature);
}
if (SignatureUtility.HasRepositoryCountersignature(primarySignature))
{
throw new SignatureException(NuGetLogCode.NU3032, Strings.SignedPackagePackageAlreadyCountersigned);
}
signaturePlacement = SignaturePlacement.Countersignature;
}
if (isSigned && !options.Overwrite && signaturePlacement != SignaturePlacement.Countersignature)
{
throw new SignatureException(NuGetLogCode.NU3001, Strings.SignedPackageAlreadySigned);
}
}
var inputPackageStream = options.InputPackageStream;
if (isSigned)
{
unsignedPackageStream = tempPackageFile.Open(FileMode.OpenOrCreate, FileAccess.ReadWrite);
using (var package = new SignedPackageArchive(options.InputPackageStream, unsignedPackageStream))
{
await package.RemoveSignatureAsync(token);
}
inputPackageStream = unsignedPackageStream;
}
using (var package = new SignedPackageArchive(inputPackageStream, options.OutputPackageStream))
{
PrimarySignature signature;
if (signaturePlacement == SignaturePlacement.Countersignature)
{
signature = await options.SignatureProvider.CreateRepositoryCountersignatureAsync(
signRequest as RepositorySignPackageRequest,
primarySignature,
options.Logger,
token);
}
else
{
var hashAlgorithm = signRequest.SignatureHashAlgorithm;
var zipArchiveHash = await package.GetArchiveHashAsync(hashAlgorithm, token);
var signatureContent = GenerateSignatureContent(hashAlgorithm, zipArchiveHash);
signature = await options.SignatureProvider.CreatePrimarySignatureAsync(signRequest, signatureContent, options.Logger, token);
}
using (var stream = new MemoryStream(signature.GetBytes()))
{
await package.AddSignatureAsync(stream, token);
}
}
}
finally
{
if (unsignedPackageStream != null && !ReferenceEquals(unsignedPackageStream, options.InputPackageStream))
{
unsignedPackageStream.Dispose();
}
FileUtility.Delete(tempPackageFile.FullName);
}
}