//
// Extracts a remote certificate upon request.
//
internal override X509Certificate2 GetRemoteCertificate(SafeDeleteContext securityContext, out X509Certificate2Collection remoteCertificateStore)
{
remoteCertificateStore = null;
if (securityContext == null)
{
return(null);
}
GlobalLog.Enter("SecureChannel#" + Logging.HashString(this) + "::RemoteCertificate{get;}");
X509Certificate2 result = null;
SafeFreeCertContext remoteContext = null;
try
{
int errorCode = SSPIWrapper.QueryContextRemoteCertificate(GlobalSSPI.SSPISecureChannel, securityContext, out remoteContext);
if (remoteContext != null && !remoteContext.IsInvalid)
{
result = new X509Certificate2(remoteContext.DangerousGetHandle());
}
}
finally
{
if (remoteContext != null && !remoteContext.IsInvalid)
{
remoteCertificateStore = UnmanagedCertificateContext.GetRemoteCertificatesFromStoreContext(remoteContext);
remoteContext.Dispose();
}
}
if (Logging.On)
{
Logging.PrintInfo(Logging.Web, SR.Format(SR.net_log_remote_certificate, (result == null ? "null" : result.ToString(true))));
}
GlobalLog.Leave("SecureChannel#" + Logging.HashString(this) + "::RemoteCertificate{get;}", (result == null ? "null" : result.Subject));
return(result);
}
//
// Extracts a remote certificate upon request.
//
internal override X509Certificate2 GetRemoteCertificate(SafeDeleteContext securityContext, out X509Certificate2Collection remoteCertificateStore)
{
remoteCertificateStore = null;
bool gotReference = false;
if (securityContext == null)
{
return(null);
}
GlobalLog.Enter("SecureChannel#" + Logging.HashString(this) + "::RemoteCertificate{get;}");
X509Certificate2 result = null;
SafeFreeCertContext remoteContext = null;
try
{
int errorCode = SSPIWrapper.QueryContextRemoteCertificate(GlobalSSPI.SSPISecureChannel, securityContext, out remoteContext);
if (remoteContext != null && !remoteContext.IsInvalid)
{
remoteContext.DangerousAddRef(ref gotReference);
result = new X509Certificate2(remoteContext.DangerousGetHandle());
}
remoteCertificateStore = new X509Certificate2Collection();
using (SafeSharedX509StackHandle chainStack =
Interop.OpenSsl.GetPeerCertificateChain(securityContext.SslContext))
{
if (!chainStack.IsInvalid)
{
int count = Interop.Crypto.GetX509StackFieldCount(chainStack);
for (int i = 0; i < count; i++)
{
IntPtr certPtr = Interop.Crypto.GetX509StackField(chainStack, i);
if (certPtr != IntPtr.Zero)
{
// X509Certificate2(IntPtr) calls X509_dup, so the reference is appropriately tracked.
X509Certificate2 chainCert = new X509Certificate2(certPtr);
remoteCertificateStore.Add(chainCert);
}
}
}
}
}
finally
{
if (gotReference)
{
remoteContext.DangerousRelease();
}
if (remoteContext != null)
{
remoteContext.Dispose();
}
}
if (Logging.On)
{
Logging.PrintInfo(Logging.Web, SR.Format(SR.net_log_remote_certificate, (result == null ? "null" : result.ToString(true))));
}
GlobalLog.Leave("SecureChannel#" + Logging.HashString(this) + "::RemoteCertificate{get;}", (result == null ? "null" : result.Subject));
return(result);
}
