private async Task <ICredentials> PromptForCredentialsAsync(
CredentialRequestType type,
string message,
AmbientAuthenticationState authState,
ILogger log,
CancellationToken token)
{
ICredentials promptCredentials;
// Only one prompt may display at a time.
await _credentialPromptLock.WaitAsync();
try
{
// Get the proxy for this URI so we can pass it to the credentialService methods
// this lets them use the proxy if they have to hit the network.
var proxyCache = ProxyCache.Instance;
var proxy = proxyCache?.GetProxy(_packageSource.SourceUri);
promptCredentials = await _credentialService
.GetCredentialsAsync(_packageSource.SourceUri, proxy, type, message, token);
if (promptCredentials == null)
{
// If this is the case, this means none of the credential providers were able to
// handle the credential request or no credentials were available for the
// endpoint.
authState.Block();
}
else
{
authState.Increment();
}
}
catch (OperationCanceledException)
{
// This indicates a non-human cancellation.
throw;
}
catch (Exception e)
{
// If this is the case, this means there was a fatal exception when interacting
// with the credential service (or its underlying credential providers). Either way,
// block asking for credentials for the live of this operation.
log.LogError(ExceptionUtilities.DisplayMessage(e));
promptCredentials = null;
authState.Block();
}
finally
{
_credentialPromptLock.Release();
}
return(promptCredentials);
}
private AmbientAuthenticationState GetAuthenticationState()
{
var correlationId = ActivityCorrelationId.Current;
AmbientAuthenticationState authState;
if (!_authStates.TryGetValue(correlationId, out authState))
{
authState = new AmbientAuthenticationState();
_authStates[correlationId] = authState;
}
return(authState);
}
private AmbientAuthenticationState GetAuthenticationState()
{
var correlationId = ActivityCorrelationContext.Current.CorrelationId;
AmbientAuthenticationState authState;
if (!_authStates.TryGetValue(correlationId, out authState))
{
authState = new AmbientAuthenticationState
{
IsBlocked = false,
AuthenticationRetriesCount = 0
};
_authStates[correlationId] = authState;
}
return(authState);
}
