public bool TryGetValue(string dbPath, out ProtectedKey protectedKey)
{
Data data;
if (_keys.TryGetValue(dbPath, out data))
{
if (data.IsValid())
{
protectedKey = data.ProtectedKey;
return(true);
}
_keys.Remove(dbPath);
}
protectedKey = null;
return(false);
}
public void OnDBClosing(object sender, FileClosingEventArgs e)
{
if (e == null)
{
Debug.Fail("Event is null");
return;
}
if (e.Cancel || e.Database == null || e.Database.MasterKey == null || e.Database.IOConnectionInfo == null)
{
return;
}
try
{
string dbPath = e.Database.IOConnectionInfo.Path;
if (!IsDBLocking(e) && Settings.Instance.GetAuthCacheType() == AuthCacheType.Local)
{
_keyStorage.Remove(dbPath);
}
else if (Settings.Instance.Enabled)
{
_keyStorage.AddOrUpdate(dbPath, ProtectedKey.Create(e.Database.MasterKey, _keyCipher));
}
}
catch (AuthProviderInvalidKeyException ex)
{
// It's expected not to throw exceptions
ClaimCurrentCacheType(AuthCacheType.Local);
ErrorHandler.ShowError(ex, "For security reasons Credential Manager storage has been turned off. Use Options dialog to turn it on.");
}
catch (AuthProviderUserCancelledException)
{
// it's OK
}
catch (Exception ex)
{
ErrorHandler.ShowError(ex);
}
}
public bool TryGetValue(string dbPath, out ProtectedKey protectedKey)
{
protectedKey = null;
IntPtr ncredPtr;
if (!CredRead(GetTarget(dbPath), CRED_TYPE_GENERIC, 0, out ncredPtr).Result)
{
Debug.Assert(Marshal.GetLastWin32Error() == ERROR_NOT_FOUND);
return(false);
}
byte[] data = null;
try
{
var ncred = (CREDENTIAL)Marshal.PtrToStructure(ncredPtr, typeof(CREDENTIAL));
if (IsExpired(ncred))
{
return(false);
}
data = new byte[ncred.CredentialBlobSize];
Marshal.Copy(ncred.CredentialBlob, data, 0, data.Length);
protectedKey = ProtectedKey.Deserialize(data);
}
catch
{
CredDelete(GetTarget(dbPath), CRED_TYPE_GENERIC, 0);
throw;
}
finally
{
CredFree(ncredPtr);
if (data != null)
{
MemUtil.ZeroByteArray(data);
}
}
return(true);
}
public void OnDBClosing(object sender, FileClosingEventArgs e)
{
if (e == null)
{
Debug.Fail("Event is null");
return;
}
if (e.Cancel || e.Database == null || e.Database.MasterKey == null || e.Database.IOConnectionInfo == null)
{
return;
}
string dbPath = e.Database.IOConnectionInfo.Path;
if (!IsDBLocking(e))
{
_keyStorage.Remove(dbPath);
}
else if (AuthProviderFactory.IsAvailable() && Settings.Instance.Enabled)
{
_keyStorage.AddOrUpdate(dbPath, ProtectedKey.Create(e.Database.MasterKey, _keyCipher));
}
}
public void AddOrUpdate(string dbPath, ProtectedKey protectedKey)
{
_keys[dbPath] = new Data(protectedKey);
}
