internal static partial IStorePal FromSystemStore(string storeName, StoreLocation storeLocation, OpenFlags openFlags)
{
bool isReadWrite = (openFlags & OpenFlags.ReadWrite) == OpenFlags.ReadWrite;
if (isReadWrite && storeLocation == StoreLocation.LocalMachine)
{
// All LocalMachine stores are read-only from an Android application's perspective
throw new CryptographicException(
SR.Cryptography_Unix_X509_MachineStoresReadOnly,
new PlatformNotSupportedException(SR.Cryptography_Unix_X509_MachineStoresReadOnly));
}
StringComparer ordinalIgnoreCase = StringComparer.OrdinalIgnoreCase;
switch (storeLocation)
{
case StoreLocation.CurrentUser:
{
// Matches Unix behaviour of getting a disallowed store that is always empty.
if (ordinalIgnoreCase.Equals(X509Store.DisallowedStoreName, storeName))
{
return(new UnsupportedDisallowedStore(openFlags));
}
if (ordinalIgnoreCase.Equals(X509Store.MyStoreName, storeName))
{
return(AndroidKeyStore.OpenDefault(openFlags));
}
if (ordinalIgnoreCase.Equals(X509Store.RootStoreName, storeName))
{
// Android only allows updating the trusted store through the built-in settings application
if (isReadWrite)
{
throw new CryptographicException(SR.Security_AccessDenied);
}
return(new TrustedStore(storeLocation));
}
break;
}
case StoreLocation.LocalMachine:
{
if (ordinalIgnoreCase.Equals(X509Store.RootStoreName, storeName))
{
return(new TrustedStore(storeLocation));
}
break;
}
}
if ((openFlags & OpenFlags.OpenExistingOnly) == OpenFlags.OpenExistingOnly)
{
throw new CryptographicException(SR.Cryptography_X509_StoreNotFound);
}
string message = SR.Format(SR.Cryptography_X509_StoreCannotCreate, storeName, storeLocation);
throw new CryptographicException(message, new PlatformNotSupportedException(message));
}