private static async Task <SubscriberHost> SetupSubscriberHostAsync(CancellationTokenSource lifetimeCts)
{
using var securityDaemonClient = new SecurityDaemonClient();
// get server certificate to configure with
Console.WriteLine($"Configure server certificate");
(X509Certificate2 serverCert, X509Certificate2[] certChain) =
await securityDaemonClient.GetServerCertificateAsync().ConfigureAwait(false);
CertificateHelper.ImportCertificate(serverCert);
CertificateHelper.ImportIntermediateCAs(serverCert);
CertificateHelper.ImportIntermediateCAs(certChain);
// Configure client trust bundle
Console.WriteLine($"Configure client trust bundle");
var trustBundle = await securityDaemonClient.GetTrustBundleAsync();
CertificateHelper.ImportIntermediateCAs(trustBundle);
// start subscriber webhost
SubscriberHost host = new SubscriberHost(serverCert, lifetimeCts);
await host.StartAsync().ConfigureAwait(false);
return(host);
}
private static async Task <EventGridEdgeClient> GetEventGridClientAsync(GridConfiguration gridConfig)
{
string[] urlTokens = gridConfig.Url.Split(":");
if (urlTokens.Length != 3)
{
throw new Exception($"URL should be of the form '<protocol>://<moduleName>:<portNo>' ");
}
string baseUrl = urlTokens[0] + ":" + urlTokens[1];
int port = int.Parse(urlTokens[2], CultureInfo.InvariantCulture);
if (gridConfig.ClientAuth.Source.Equals("IoTEdge", StringComparison.OrdinalIgnoreCase))
{
SecurityDaemonClient iotSecurity = new SecurityDaemonClient();
(X509Certificate2 identityCertificate, IEnumerable <X509Certificate2> chain) = await iotSecurity.GetIdentityCertificateAsync();
return(new EventGridEdgeClient(baseUrl, port, new CustomHttpClientFactory(chain.First(), identityCertificate)));
}
else if (gridConfig.ClientAuth.Source.Equals("BearerToken", StringComparison.OrdinalIgnoreCase))
{
EventGridEdgeClient egClient = new EventGridEdgeClient(baseUrl, port);
HttpRequestHeaders defaultMgmtRequestHeaders = egClient.HttpClient.DefaultRequestHeaders;
defaultMgmtRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", $"{gridConfig.ClientAuth.Token1}");
HttpRequestHeaders defaultRuntimeRequestHeaders = egClient.HttpClient.DefaultRequestHeaders;
defaultRuntimeRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", $"{gridConfig.ClientAuth.Token1}");
}
throw new Exception("Cannot create eventgrid client!");
}
private static async Task <EventGridEdgeClient> GetEventGridClientAsync(GridConfiguration gridConfig)
{
using var securityDaemonClient = new SecurityDaemonClient();
// get the client certificate to use when communicating with eventgrid
(X509Certificate2 clientCertificate, X509Certificate2[] chain) = await securityDaemonClient.GetIdentityCertificateAsync().ConfigureAwait(false);
Console.WriteLine($"Client Certificate issue is valid from {clientCertificate.NotBefore}, {clientCertificate.NotAfter}");
string[] urlTokens = gridConfig.Url.Split(":");
if (urlTokens.Length != 3)
{
throw new Exception($"URL should be of the form '<protocol>://<moduleName>:<portNo>' ");
}
string baseUrl = urlTokens[0] + ":" + urlTokens[1];
int port = int.Parse(urlTokens[2], CultureInfo.InvariantCulture);
return(new EventGridEdgeClient(baseUrl, port, new CustomHttpClientFactory(chain[0], clientCertificate)));
}
public async Task Init(CancellationTokenSource cancellationTokenSource)
{
var tokenHelper = new SecurityDaemonClient();
while (!cancellationTokenSource.IsCancellationRequested)
{
try
{
Console.WriteLine($"tokenHelper: '{tokenHelper.ToString()}'");
var token = tokenHelper.GetModuleToken(3600).Result;
Console.WriteLine($"Token: '{token}'");
var tokenAuthentication = new ModuleAuthenticationWithToken(tokenHelper.DeviceId, tokenHelper.ModuleId, token);
var transportType = new MqttTransportSettings(TransportType.Mqtt_Tcp_Only);
ITransportSettings[] settings = { transportType };
using (ModuleClient moduleClient = ModuleClient.Create(tokenHelper.IotHubHostName, tokenAuthentication, settings))
{
if (moduleClient == null)
{
Console.WriteLine("Failed to create ModuleClient!");
throw new InvalidOperationException("Failed to create ModuleClient");
}
moduleClient.SetConnectionStatusChangesHandler((ConnectionStatus status, ConnectionStatusChangeReason reason) =>
{
if (reason == ConnectionStatusChangeReason.Bad_Credential)
{
Init(cancellationTokenSource).Wait();
}
});
Console.WriteLine($"Starting DeviceStreamSample on '{_hostName}:{_port}'");
await RunSampleAsync(moduleClient, true, cancellationTokenSource);
}
}
catch (Exception ex)
{
Console.WriteLine($"{DateTime.UtcNow} - Got an exception: {ex.ToString()}");
Console.WriteLine("Waiting 1 minute and trying again...");
await Task.Delay(TimeSpan.FromMinutes(1));
}
}
}
