public static void FlushStores()
{
OpenSslX509ChainProcessor.FlushStores();
}
private static IChainPal?BuildChainCore(
bool useMachineContext,
ICertificatePal cert,
X509Certificate2Collection?extraStore,
OidCollection?applicationPolicy,
OidCollection?certificatePolicy,
X509RevocationMode revocationMode,
X509RevocationFlag revocationFlag,
X509Certificate2Collection?customTrustStore,
X509ChainTrustMode trustMode,
DateTime verificationTime,
TimeSpan timeout,
bool disableAia)
{
if (timeout == TimeSpan.Zero)
{
// An input value of 0 on the timeout is treated as 15 seconds, to match Windows.
timeout = TimeSpan.FromSeconds(15);
}
else if (timeout > s_maxUrlRetrievalTimeout || timeout < TimeSpan.Zero)
{
// Windows has a max timeout of 1 minute, so we'll match. Windows also treats
// the timeout as unsigned, so a negative value gets treated as a large positive
// value that is also clamped.
timeout = s_maxUrlRetrievalTimeout;
}
// Let Unspecified mean Local, so only convert if the source was UTC.
//
// Converge on Local instead of UTC because OpenSSL is going to assume we gave it
// local time.
if (verificationTime.Kind == DateTimeKind.Utc)
{
verificationTime = verificationTime.ToLocalTime();
}
// Until we support the Disallowed store, ensure it's empty (which is done by the ctor)
using (new X509Store(StoreName.Disallowed, StoreLocation.CurrentUser, OpenFlags.ReadOnly))
{
}
TimeSpan downloadTimeout = timeout;
OpenSslX509ChainProcessor chainPal = OpenSslX509ChainProcessor.InitiateChain(
((OpenSslX509CertificateReader)cert).SafeHandle,
customTrustStore,
trustMode,
verificationTime,
downloadTimeout);
Interop.Crypto.X509VerifyStatusCode status = chainPal.FindFirstChain(extraStore);
if (OpenSslX509ChainEventSource.Log.IsEnabled())
{
OpenSslX509ChainEventSource.Log.FindFirstChainFinished(status);
}
if (!OpenSslX509ChainProcessor.IsCompleteChain(status))
{
if (disableAia)
{
if (OpenSslX509ChainEventSource.Log.IsEnabled())
{
OpenSslX509ChainEventSource.Log.AiaDisabled();
}
}
else
{
List <X509Certificate2>?tmp = null;
status = chainPal.FindChainViaAia(ref tmp);
if (OpenSslX509ChainEventSource.Log.IsEnabled())
{
OpenSslX509ChainEventSource.Log.FindChainViaAiaFinished(status, tmp?.Count ?? 0);
}
if (tmp != null)
{
if (status == Interop.Crypto.X509VerifyStatusCode.X509_V_OK)
{
SaveIntermediateCertificates(tmp);
}
foreach (X509Certificate2 downloaded in tmp)
{
downloaded.Dispose();
}
}
}
}
if (revocationMode != X509RevocationMode.NoCheck)
{
if (OpenSslX509ChainProcessor.IsCompleteChain(status))
{
// Checking the validity period for the certificates in the chain is done after the
// check for a trusted root, so accept expired (or not yet valid) as acceptable for
// processing revocation.
if (status != Interop.Crypto.X509VerifyStatusCode.X509_V_OK &&
status != Interop.Crypto.X509VerifyStatusCodeUniversal.X509_V_ERR_CERT_NOT_YET_VALID &&
status != Interop.Crypto.X509VerifyStatusCodeUniversal.X509_V_ERR_CERT_HAS_EXPIRED)
{
if (OpenSslX509ChainEventSource.Log.IsEnabled())
{
OpenSslX509ChainEventSource.Log.UntrustedChainWithRevocation();
}
revocationMode = X509RevocationMode.NoCheck;
}
chainPal.CommitToChain();
chainPal.ProcessRevocation(revocationMode, revocationFlag);
}
}
chainPal.Finish(applicationPolicy, certificatePolicy);
#if DEBUG
if (chainPal.ChainElements !.Length > 0)
{
X509Certificate2 reportedLeaf = chainPal.ChainElements[0].Certificate;
Debug.Assert(reportedLeaf != null, "reportedLeaf != null");
Debug.Assert(!ReferenceEquals(cert, reportedLeaf.Pal), "!ReferenceEquals(cert, reportedLeaf.Pal)");
}
#endif
return(chainPal);
}
internal static partial IChainPal?BuildChain(
bool useMachineContext,
ICertificatePal cert,
X509Certificate2Collection?extraStore,
OidCollection?applicationPolicy,
OidCollection?certificatePolicy,
X509RevocationMode revocationMode,
X509RevocationFlag revocationFlag,
X509Certificate2Collection?customTrustStore,
X509ChainTrustMode trustMode,
DateTime verificationTime,
TimeSpan timeout,
bool disableAia)
{
if (timeout == TimeSpan.Zero)
{
// An input value of 0 on the timeout is treated as 15 seconds, to match Windows.
timeout = TimeSpan.FromSeconds(15);
}
else if (timeout > s_maxUrlRetrievalTimeout || timeout < TimeSpan.Zero)
{
// Windows has a max timeout of 1 minute, so we'll match. Windows also treats
// the timeout as unsigned, so a negative value gets treated as a large positive
// value that is also clamped.
timeout = s_maxUrlRetrievalTimeout;
}
// Let Unspecified mean Local, so only convert if the source was UTC.
//
// Converge on Local instead of UTC because OpenSSL is going to assume we gave it
// local time.
if (verificationTime.Kind == DateTimeKind.Utc)
{
verificationTime = verificationTime.ToLocalTime();
}
// Until we support the Disallowed store, ensure it's empty (which is done by the ctor)
using (new X509Store(StoreName.Disallowed, StoreLocation.CurrentUser, OpenFlags.ReadOnly))
{
}
TimeSpan downloadTimeout = timeout;
OpenSslX509ChainProcessor chainPal = OpenSslX509ChainProcessor.InitiateChain(
((OpenSslX509CertificateReader)cert).SafeHandle,
customTrustStore,
trustMode,
verificationTime,
downloadTimeout);
Interop.Crypto.X509VerifyStatusCode status = chainPal.FindFirstChain(extraStore);
if (!OpenSslX509ChainProcessor.IsCompleteChain(status) && !disableAia)
{
List <X509Certificate2>?tmp = null;
status = chainPal.FindChainViaAia(ref tmp);
if (tmp != null)
{
if (status == Interop.Crypto.X509VerifyStatusCode.X509_V_OK)
{
SaveIntermediateCertificates(tmp);
}
foreach (X509Certificate2 downloaded in tmp)
{
downloaded.Dispose();
}
}
}
// In NoCheck+OK then we don't need to build the chain any more, we already
// know it's error-free. So skip straight to finish.
if (status != Interop.Crypto.X509VerifyStatusCode.X509_V_OK ||
revocationMode != X509RevocationMode.NoCheck)
{
if (OpenSslX509ChainProcessor.IsCompleteChain(status))
{
chainPal.CommitToChain();
chainPal.ProcessRevocation(revocationMode, revocationFlag);
}
}
chainPal.Finish(applicationPolicy, certificatePolicy);
#if DEBUG
if (chainPal.ChainElements !.Length > 0)
{
X509Certificate2 reportedLeaf = chainPal.ChainElements[0].Certificate;
Debug.Assert(reportedLeaf != null, "reportedLeaf != null");
Debug.Assert(!ReferenceEquals(cert, reportedLeaf.Pal), "!ReferenceEquals(cert, reportedLeaf.Pal)");
}
#endif
return(chainPal);
}
