internal unsafe X509ExtensionCollection(Cryptography.SafeCertContextHandle safeCertContextHandle)
{
using (Cryptography.SafeCertContextHandle certContext = CAPI.CertDuplicateCertificateContext(safeCertContextHandle)) {
CAPI.CERT_CONTEXT pCertContext = *((CAPI.CERT_CONTEXT *)certContext.DangerousGetHandle());
CAPI.CERT_INFO pCertInfo = (CAPI.CERT_INFO)Marshal.PtrToStructure(pCertContext.pCertInfo, typeof(CAPI.CERT_INFO));
uint cExtensions = pCertInfo.cExtension;
IntPtr rgExtensions = pCertInfo.rgExtension;
for (uint index = 0; index < cExtensions; index++)
{
X509Extension extension = new X509Extension(new IntPtr((long)rgExtensions + (index * Marshal.SizeOf(typeof(CAPI.CERT_EXTENSION)))));
X509Extension customExtension = CryptoConfig.CreateFromName(extension.Oid.Value) as X509Extension;
if (customExtension != null)
{
customExtension.CopyFrom(extension);
extension = customExtension;
}
Add(extension);
}
}
}
private static void RemoveCertificateFromStore(Cryptography.SafeCertStoreHandle safeCertStoreHandle, Cryptography.SafeCertContextHandle safeCertContext)
{
if (safeCertContext == null || safeCertContext.IsInvalid)
{
return;
}
if (safeCertStoreHandle == null || safeCertStoreHandle.IsInvalid || safeCertStoreHandle.IsClosed)
{
throw new CryptographicException(SR.GetString(SR.Cryptography_X509_StoreNotOpen));
}
// Find the certificate in the store.
Cryptography.SafeCertContextHandle safeCertContext2 = CAPI.CertFindCertificateInStore(safeCertStoreHandle,
CAPI.X509_ASN_ENCODING | CAPI.PKCS_7_ASN_ENCODING,
0,
CAPI.CERT_FIND_EXISTING,
safeCertContext.DangerousGetHandle(),
Cryptography.SafeCertContextHandle.InvalidHandle);
// The certificate is not present in the store, simply return.
if (safeCertContext2 == null || safeCertContext2.IsInvalid)
{
return;
}
// CertDeleteCertificateFromStore always releases the context regardless of success
// or failure so we don't need to manually release it
GC.SuppressFinalize(safeCertContext2);
// Remove from the store.
if (!CAPI.CertDeleteCertificateFromStore(safeCertContext2))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
}
