private static async Task <string> GetTokenByThumbprint(string adAppId, string thumbprint, string authority, string resource, CancellationToken cancellationToken)
{
var context = new AuthenticationContext(authority, TokenCache.DefaultShared);
var certificate = CertificateExtensions.FindByThumbprint(thumbprint);
var clientAssertion = new ClientAssertionCertificate(adAppId, certificate);
var result = await context.AcquireTokenAsync(resource, clientAssertion).ConfigureAwait(false);
if (result?.AccessToken == null)
{
throw new InvalidOperationException($"Unable to acquire token for resource {resource}. Authority: {authority}. ApplicationId: {adAppId}. Thumbprint: {thumbprint}");
}
return(result.AccessToken);
}
public static X509Certificate2 FindCertificateByThumbprint(this StoreLocation location, string thumbprint, StoreName name = StoreName.My)
{
return(CertificateExtensions.FindCertificateInternal(location, name, X509FindType.FindByThumbprint, thumbprint, false));
}