public async Task <X509Certificate> GetCertificate(string issuer)
{
DateTime now = _clock.GetDateTimeUtc();
if (_certificateDictionary == null || _certificateDictionaryCacheExpiryTime <= now)
{
List <X509Certificate> x509Certificates = await _rootCertificateProvider.GetRootCaCertificates();
_certificateDictionary = x509Certificates.Where(_ => _.Issuer.Trim() == _.Subject.Trim()).ToDictionary(_ => _.Issuer.Trim().ToLower());
_certificateDictionaryCacheExpiryTime = now.Add(_certificateDictionaryTtl);
}
_certificateDictionary.TryGetValue(issuer.Trim().ToLower(), out var cert);
return(cert);
}
public async Task GetCertificatesGoesToOriginForStateOnFirstCallAndReturnsValue()
{
A.CallTo(() => _clock.GetDateTimeUtc()).Returns(new DateTime(2018, 01, 01));
string issuer = "CN=ABC, O=ABC, S=LONDON, C=uk";
X509Certificate x509Certificate = A.Fake <X509Certificate>();
A.CallTo(() => x509Certificate.Issuer).Returns(issuer);
A.CallTo(() => x509Certificate.Subject).Returns(issuer);
A.CallTo(() => _rootCertificateProvider.GetRootCaCertificates())
.Returns(Task.FromResult(new List <X509Certificate> {
x509Certificate
}));
X509Certificate certificate = await _rootCertificateLookUp.GetCertificate(issuer);
Assert.That(certificate, Is.Not.Null);
A.CallTo(() => _rootCertificateProvider.GetRootCaCertificates()).MustHaveHappenedOnceExactly();
}
