private async Task ComposeChain(CertificateChainBuilder builder, X509Certificate2 x509, string url)
{
builder.AddItem(x509.ToPEM(), url);
if (x509.IsRoot())
{
return;
}
var uri = _uriFinder.Find(x509);
var file = await DownloadCertificate(uri, x509);
using (var signer = new X509Certificate2(file))
{
await ComposeChain(builder, signer, uri.ToString());
}
}
public async Task <CertificateChain> ComposeChain(string firstCertificateAsPem, string originalUrl = "http://localhost")
{
var builder = new CertificateChainBuilder();
try
{
using (var x509 = new X509Certificate2(Encoding.ASCII.GetBytes(firstCertificateAsPem)))
{
await ComposeChain(builder, x509, "http://localhost");
}
}
catch (SignerUriNotFoundException sunfex)
{
builder.SetError(CertificateChainStatus.SignerUriNotFound, sunfex);
}
catch (SignerDownloadException sdex)
{
builder.SetError(CertificateChainStatus.ErrorDownloadingSigner, sdex);
}
return(builder.Build());
}