public static ILoaderPal FromBlob(byte[] rawData, SafePasswordHandle password, X509KeyStorageFlags keyStorageFlags)
{
Debug.Assert(password != null);
ICertificatePal singleCert;
if (OpenSslX509CertificateReader.TryReadX509Der(rawData, out singleCert) ||
OpenSslX509CertificateReader.TryReadX509Pem(rawData, out singleCert))
{
// The single X509 structure methods shouldn't return true and out null, only empty
// collections have that behavior.
Debug.Assert(singleCert != null);
return(SingleCertToLoaderPal(singleCert));
}
List <ICertificatePal> certPals;
Exception openSslException;
if (PkcsFormatReader.TryReadPkcs7Der(rawData, out certPals) ||
PkcsFormatReader.TryReadPkcs7Pem(rawData, out certPals) ||
PkcsFormatReader.TryReadPkcs12(rawData, password, out certPals, out openSslException))
{
Debug.Assert(certPals != null);
return(ListToLoaderPal(certPals));
}
Debug.Assert(openSslException != null);
throw openSslException;
}
public X509ContentType GetCertContentType(byte[] rawData)
{
{
ICertificatePal certPal;
if (OpenSslX509CertificateReader.TryReadX509Der(rawData, out certPal) ||
OpenSslX509CertificateReader.TryReadX509Pem(rawData, out certPal))
{
certPal.Dispose();
return(X509ContentType.Cert);
}
}
if (PkcsFormatReader.IsPkcs7(rawData))
{
return(X509ContentType.Pkcs7);
}
{
OpenSslPkcs12Reader pfx;
if (OpenSslPkcs12Reader.TryRead(rawData, out pfx))
{
pfx.Dispose();
return(X509ContentType.Pkcs12);
}
}
// Unsupported format.
// Windows throws new CryptographicException(CRYPT_E_NO_MATCH)
throw new CryptographicException();
}
private static ILoaderPal FromBio(SafeBioHandle bio, SafePasswordHandle password)
{
int bioPosition = Interop.Crypto.BioTell(bio);
Debug.Assert(bioPosition >= 0);
ICertificatePal singleCert;
if (OpenSslX509CertificateReader.TryReadX509Pem(bio, out singleCert))
{
return(SingleCertToLoaderPal(singleCert));
}
// Rewind, try again.
OpenSslX509CertificateReader.RewindBio(bio, bioPosition);
if (OpenSslX509CertificateReader.TryReadX509Der(bio, out singleCert))
{
return(SingleCertToLoaderPal(singleCert));
}
// Rewind, try again.
OpenSslX509CertificateReader.RewindBio(bio, bioPosition);
List <ICertificatePal> certPals;
if (PkcsFormatReader.TryReadPkcs7Pem(bio, out certPals))
{
return(ListToLoaderPal(certPals));
}
// Rewind, try again.
OpenSslX509CertificateReader.RewindBio(bio, bioPosition);
if (PkcsFormatReader.TryReadPkcs7Der(bio, out certPals))
{
return(ListToLoaderPal(certPals));
}
// Rewind, try again.
OpenSslX509CertificateReader.RewindBio(bio, bioPosition);
// Capture the exception so in case of failure, the call to BioSeek does not override it.
Exception openSslException;
if (PkcsFormatReader.TryReadPkcs12(bio, password, out certPals, out openSslException))
{
return(ListToLoaderPal(certPals));
}
// Since we aren't going to finish reading, leaving the buffer where it was when we got
// it seems better than leaving it in some arbitrary other position.
//
// Use BioSeek directly for the last seek attempt, because any failure here should instead
// report the already created (but not yet thrown) exception.
if (Interop.Crypto.BioSeek(bio, bioPosition) < 0)
{
Interop.Crypto.ErrClearError();
}
Debug.Assert(openSslException != null);
throw openSslException;
}
public X509ContentType GetCertContentType(string fileName)
{
// If we can't open the file, fail right away.
using (SafeBioHandle fileBio = Interop.Crypto.BioNewFile(fileName, "rb"))
{
Interop.Crypto.CheckValidOpenSslHandle(fileBio);
int bioPosition = Interop.Crypto.BioTell(fileBio);
Debug.Assert(bioPosition >= 0);
// X509ContentType.Cert
{
ICertificatePal certPal;
if (OpenSslX509CertificateReader.TryReadX509Der(fileBio, out certPal))
{
certPal.Dispose();
return(X509ContentType.Cert);
}
OpenSslX509CertificateReader.RewindBio(fileBio, bioPosition);
if (OpenSslX509CertificateReader.TryReadX509Pem(fileBio, out certPal))
{
certPal.Dispose();
return(X509ContentType.Cert);
}
OpenSslX509CertificateReader.RewindBio(fileBio, bioPosition);
}
// X509ContentType.Pkcs7
{
if (PkcsFormatReader.IsPkcs7Der(fileBio))
{
return(X509ContentType.Pkcs7);
}
OpenSslX509CertificateReader.RewindBio(fileBio, bioPosition);
if (PkcsFormatReader.IsPkcs7Pem(fileBio))
{
return(X509ContentType.Pkcs7);
}
OpenSslX509CertificateReader.RewindBio(fileBio, bioPosition);
}
// X509ContentType.Pkcs12 (aka PFX)
{
OpenSslPkcs12Reader pkcs12Reader;
if (OpenSslPkcs12Reader.TryRead(fileBio, out pkcs12Reader))
{
pkcs12Reader.Dispose();
return(X509ContentType.Pkcs12);
}
OpenSslX509CertificateReader.RewindBio(fileBio, bioPosition);
}
}
// Unsupported format.
// Windows throws new CryptographicException(CRYPT_E_NO_MATCH)
throw new CryptographicException();
}
private static void LoadMachineStores()
{
Debug.Assert(
Monitor.IsEntered(s_machineLoadLock),
"LoadMachineStores assumes a lock(s_machineLoadLock)");
var rootStore = new List <X509Certificate2>();
var intermedStore = new List <X509Certificate2>();
DirectoryInfo rootStorePath = null;
IEnumerable <FileInfo> trustedCertFiles;
try
{
rootStorePath = new DirectoryInfo(Interop.Crypto.GetX509RootStorePath());
}
catch (ArgumentException)
{
// If SSL_CERT_DIR is set to the empty string, or anything else which gives
// "The path is not of a legal form", then the GetX509RootStorePath value is ignored.
}
if (rootStorePath != null && rootStorePath.Exists)
{
trustedCertFiles = rootStorePath.EnumerateFiles();
}
else
{
trustedCertFiles = Array.Empty <FileInfo>();
}
FileInfo rootStoreFile = null;
try
{
rootStoreFile = new FileInfo(Interop.Crypto.GetX509RootStoreFile());
}
catch (ArgumentException)
{
// If SSL_CERT_FILE is set to the empty string, or anything else which gives
// "The path is not of a legal form", then the GetX509RootStoreFile value is ignored.
}
if (rootStoreFile != null && rootStoreFile.Exists)
{
trustedCertFiles = Prepend(trustedCertFiles, rootStoreFile);
}
HashSet <X509Certificate2> uniqueRootCerts = new HashSet <X509Certificate2>();
HashSet <X509Certificate2> uniqueIntermediateCerts = new HashSet <X509Certificate2>();
foreach (FileInfo file in trustedCertFiles)
{
using (SafeBioHandle fileBio = Interop.Crypto.BioNewFile(file.FullName, "rb"))
{
// The handle may be invalid, for example when we don't have read permission for the file.
if (fileBio.IsInvalid)
{
Interop.Crypto.ErrClearError();
continue;
}
ICertificatePal pal;
while (OpenSslX509CertificateReader.TryReadX509Pem(fileBio, out pal) ||
OpenSslX509CertificateReader.TryReadX509Der(fileBio, out pal))
{
X509Certificate2 cert = new X509Certificate2(pal);
// The HashSets are just used for uniqueness filters, they do not survive this method.
if (StringComparer.Ordinal.Equals(cert.Subject, cert.Issuer))
{
if (uniqueRootCerts.Add(cert))
{
rootStore.Add(cert);
continue;
}
}
else
{
if (uniqueIntermediateCerts.Add(cert))
{
intermedStore.Add(cert);
continue;
}
}
// There's a good chance we'll encounter duplicates on systems that have both one-cert-per-file
// and one-big-file trusted certificate stores. Anything that wasn't unique will end up here.
cert.Dispose();
}
}
}
var rootStorePal = new CollectionBackedStoreProvider(rootStore);
s_machineIntermediateStore = new CollectionBackedStoreProvider(intermedStore);
// s_machineRootStore's nullarity is the loaded-state sentinel, so write it with Volatile.
Debug.Assert(Monitor.IsEntered(s_machineLoadLock), "LoadMachineStores assumes a lock(s_machineLoadLock)");
Volatile.Write(ref s_machineRootStore, rootStorePal);
}