Esempio n. 1
0
        protected override void Load(ContainerBuilder builder)
        {
            // ISignatureProvider
            builder.Register(
                c =>
            {
                ISignatureProvider signatureProvider = this.edgeHubConnectionString.Map(
                    cs =>
                {
                    IotHubConnectionStringBuilder csBuilder = IotHubConnectionStringBuilder.Create(cs);
                    return(new SharedAccessKeySignatureProvider(csBuilder.SharedAccessKey) as ISignatureProvider);
                })
                                                       .GetOrElse(
                    () =>
                {
                    string edgeHubGenerationId = this.edgeHubGenerationId.Expect(() => new InvalidOperationException("Generation ID missing"));
                    string workloadUri         = this.workloadUri.Expect(() => new InvalidOperationException("workloadUri is missing"));
                    return(new HttpHsmSignatureProvider(this.edgeHubModuleId, edgeHubGenerationId, workloadUri, Constants.WorkloadApiVersion) as ISignatureProvider);
                });
                return(signatureProvider);
            })
            .As <ISignatureProvider>()
            .SingleInstance();

            // Detect system environment
            builder.Register(c => new SystemEnvironment())
            .As <ISystemEnvironment>()
            .SingleInstance();

            // DataBase options
            builder.Register(c => new RocksDbOptionsProvider(c.Resolve <ISystemEnvironment>(), this.optimizeForPerformance))
            .As <IRocksDbOptionsProvider>()
            .SingleInstance();

            // IDbStoreProvider
            builder.Register(
                c =>
            {
                var loggerFactory = c.Resolve <ILoggerFactory>();
                ILogger logger    = loggerFactory.CreateLogger(typeof(RoutingModule));

                if (this.usePersistentStorage)
                {
                    // Create partitions for messages and twins
                    var partitionsList = new List <string> {
                        Core.Constants.MessageStorePartitionKey, Core.Constants.TwinStorePartitionKey, Core.Constants.CheckpointStorePartitionKey
                    };
                    try
                    {
                        IDbStoreProvider dbStoreprovider = DbStoreProvider.Create(
                            c.Resolve <IRocksDbOptionsProvider>(),
                            this.storagePath,
                            partitionsList);
                        logger.LogInformation($"Created persistent store at {this.storagePath}");
                        return(dbStoreprovider);
                    }
                    catch (Exception ex) when(!ExceptionEx.IsFatal(ex))
                    {
                        logger.LogError(ex, "Error creating RocksDB store. Falling back to in-memory store.");
                        return(new InMemoryDbStoreProvider());
                    }
                }
                else
                {
                    logger.LogInformation($"Using in-memory store");
                    return(new InMemoryDbStoreProvider());
                }
            })
            .As <IDbStoreProvider>()
            .SingleInstance();

            // Task<Option<IEncryptionProvider>>
            builder.Register(
                async c =>
            {
                Option <IEncryptionProvider> encryptionProviderOption = await this.workloadUri
                                                                        .Map(
                    async uri =>
                {
                    var encryptionProvider = await EncryptionProvider.CreateAsync(
                        this.storagePath,
                        new Uri(uri),
                        Constants.WorkloadApiVersion,
                        this.edgeHubModuleId,
                        this.edgeHubGenerationId.Expect(() => new InvalidOperationException("Missing generation ID")),
                        Constants.InitializationVectorFileName) as IEncryptionProvider;
                    return(Option.Some(encryptionProvider));
                })
                                                                        .GetOrElse(() => Task.FromResult(Option.None <IEncryptionProvider>()));
                return(encryptionProviderOption);
            })
            .As <Task <Option <IEncryptionProvider> > >()
            .SingleInstance();

            // IStoreProvider
            builder.Register(c => new StoreProvider(c.Resolve <IDbStoreProvider>()))
            .As <IStoreProvider>()
            .SingleInstance();

            // ITokenProvider
            builder.Register(c => new ClientTokenProvider(c.Resolve <ISignatureProvider>(), this.iothubHostName, this.edgeDeviceId, this.edgeHubModuleId, TimeSpan.FromHours(1)))
            .Named <ITokenProvider>("EdgeHubClientAuthTokenProvider")
            .SingleInstance();

            // ITokenProvider
            builder.Register(
                c =>
            {
                string deviceId = WebUtility.UrlEncode(this.edgeDeviceId);
                string moduleId = WebUtility.UrlEncode(this.edgeHubModuleId);
                return(new ClientTokenProvider(c.Resolve <ISignatureProvider>(), this.iothubHostName, deviceId, moduleId, TimeSpan.FromHours(1)));
            })
            .Named <ITokenProvider>("EdgeHubServiceAuthTokenProvider")
            .SingleInstance();

            // Task<IDeviceScopeIdentitiesCache>
            builder.Register(
                async c =>
            {
                IDeviceScopeIdentitiesCache deviceScopeIdentitiesCache;
                if (this.authenticationMode == AuthenticationMode.CloudAndScope || this.authenticationMode == AuthenticationMode.Scope)
                {
                    var edgeHubTokenProvider = c.ResolveNamed <ITokenProvider>("EdgeHubServiceAuthTokenProvider");
                    IDeviceScopeApiClient securityScopesApiClient = new DeviceScopeApiClient(this.iothubHostName, this.edgeDeviceId, this.edgeHubModuleId, 10, edgeHubTokenProvider);
                    IServiceProxy serviceProxy = new ServiceProxy(securityScopesApiClient);
                    IKeyValueStore <string, string> encryptedStore = await GetEncryptedStore(c, "DeviceScopeCache");
                    deviceScopeIdentitiesCache = await DeviceScopeIdentitiesCache.Create(serviceProxy, encryptedStore, this.scopeCacheRefreshRate);
                }
                else
                {
                    deviceScopeIdentitiesCache = new NullDeviceScopeIdentitiesCache();
                }

                return(deviceScopeIdentitiesCache);
            })
            .As <Task <IDeviceScopeIdentitiesCache> >()
            .AutoActivate()
            .SingleInstance();

            // Task<ICredentialsCache>
            builder.Register(
                async c =>
            {
                ICredentialsCache underlyingCredentialsCache;
                if (this.persistTokens)
                {
                    IKeyValueStore <string, string> encryptedStore = await GetEncryptedStore(c, "CredentialsCache");
                    return(new PersistedTokenCredentialsCache(encryptedStore));
                }
                else
                {
                    underlyingCredentialsCache = new NullCredentialsCache();
                }

                ICredentialsCache credentialsCache = new CredentialsCache(underlyingCredentialsCache);
                return(credentialsCache);
            })
            .As <Task <ICredentialsCache> >()
            .SingleInstance();

            // Task<IAuthenticator>
            builder.Register(
                async c =>
            {
                IAuthenticator tokenAuthenticator;
                IAuthenticator certificateAuthenticator;
                IDeviceScopeIdentitiesCache deviceScopeIdentitiesCache;
                var credentialsCacheTask = c.Resolve <Task <ICredentialsCache> >();
                // by default regardless of how the authenticationMode, X.509 certificate validation will always be scoped
                deviceScopeIdentitiesCache = await c.Resolve <Task <IDeviceScopeIdentitiesCache> >();
                certificateAuthenticator   = new DeviceScopeCertificateAuthenticator(deviceScopeIdentitiesCache, new NullAuthenticator(), this.trustBundle, true);
                switch (this.authenticationMode)
                {
                case AuthenticationMode.Cloud:
                    tokenAuthenticator = await this.GetCloudTokenAuthenticator(c);
                    break;

                case AuthenticationMode.Scope:
                    tokenAuthenticator = new DeviceScopeTokenAuthenticator(deviceScopeIdentitiesCache, this.iothubHostName, this.edgeDeviceHostName, new NullAuthenticator(), true, true);
                    break;

                default:
                    IAuthenticator cloudTokenAuthenticator = await this.GetCloudTokenAuthenticator(c);
                    tokenAuthenticator = new DeviceScopeTokenAuthenticator(deviceScopeIdentitiesCache, this.iothubHostName, this.edgeDeviceHostName, cloudTokenAuthenticator, true, true);
                    break;
                }

                ICredentialsCache credentialsCache = await credentialsCacheTask;
                return(new Authenticator(tokenAuthenticator, certificateAuthenticator, credentialsCache) as IAuthenticator);
            })
            .As <Task <IAuthenticator> >()
            .SingleInstance();

            // IClientCredentialsFactory
            builder.Register(c => new ClientCredentialsFactory(c.Resolve <IIdentityProvider>(), this.productInfo))
            .As <IClientCredentialsFactory>()
            .SingleInstance();

            // ConnectionReauthenticator
            builder.Register(
                async c =>
            {
                var edgeHubCredentials               = c.ResolveNamed <IClientCredentials>("EdgeHubCredentials");
                var connectionManagerTask            = c.Resolve <Task <IConnectionManager> >();
                var authenticatorTask                = c.Resolve <Task <IAuthenticator> >();
                var credentialsCacheTask             = c.Resolve <Task <ICredentialsCache> >();
                var deviceScopeIdentitiesCacheTask   = c.Resolve <Task <IDeviceScopeIdentitiesCache> >();
                var deviceConnectivityManager        = c.Resolve <IDeviceConnectivityManager>();
                IConnectionManager connectionManager = await connectionManagerTask;
                IAuthenticator authenticator         = await authenticatorTask;
                ICredentialsCache credentialsCache   = await credentialsCacheTask;
                IDeviceScopeIdentitiesCache deviceScopeIdentitiesCache = await deviceScopeIdentitiesCacheTask;
                var connectionReauthenticator = new ConnectionReauthenticator(
                    connectionManager,
                    authenticator,
                    credentialsCache,
                    deviceScopeIdentitiesCache,
                    TimeSpan.FromMinutes(5),
                    edgeHubCredentials.Identity,
                    deviceConnectivityManager);
                return(connectionReauthenticator);
            })
            .As <Task <ConnectionReauthenticator> >()
            .SingleInstance();

            base.Load(builder);
        }
        protected override void Load(ContainerBuilder builder)
        {
            // IMessageConverter<IRoutingMessage>
            builder.Register(c => new RoutingMessageConverter())
            .As <Core.IMessageConverter <IRoutingMessage> >()
            .SingleInstance();

            // IRoutingPerfCounter
            builder.Register(
                c =>
            {
                Routing.PerfCounter = NullRoutingPerfCounter.Instance;
                return(Routing.PerfCounter);
            })
            .As <IRoutingPerfCounter>()
            .AutoActivate()
            .SingleInstance();

            // IRoutingUserAnalyticsLogger
            builder.Register(
                c =>
            {
                Routing.UserAnalyticsLogger = NullUserAnalyticsLogger.Instance;
                return(Routing.UserAnalyticsLogger);
            })
            .As <IRoutingUserAnalyticsLogger>()
            .AutoActivate()
            .SingleInstance();

            // IRoutingUserMetricLogger
            builder.Register(
                c =>
            {
                Routing.UserMetricLogger = NullRoutingUserMetricLogger.Instance;
                return(Routing.UserMetricLogger);
            })
            .As <IRoutingUserMetricLogger>()
            .AutoActivate()
            .SingleInstance();

            // IMessageConverter<Message>
            builder.Register(c => new DeviceClientMessageConverter())
            .As <Core.IMessageConverter <Message> >()
            .SingleInstance();

            // IMessageConverter<Twin>
            builder.Register(c => new TwinMessageConverter())
            .As <Core.IMessageConverter <Twin> >()
            .SingleInstance();

            // IMessageConverter<TwinCollection>
            builder.Register(c => new TwinCollectionMessageConverter())
            .As <Core.IMessageConverter <TwinCollection> >()
            .SingleInstance();

            // IMessageConverterProvider
            builder.Register(
                c => new MessageConverterProvider(new Dictionary <Type, IMessageConverter>()
            {
                { typeof(Message), c.Resolve <Core.IMessageConverter <Message> >() },
                { typeof(Twin), c.Resolve <Core.IMessageConverter <Twin> >() },
                { typeof(TwinCollection), c.Resolve <Core.IMessageConverter <TwinCollection> >() }
            }))
            .As <Core.IMessageConverterProvider>()
            .SingleInstance();

            // IDeviceConnectivityManager
            builder.Register(
                c =>
            {
                IDeviceConnectivityManager deviceConnectivityManager = new DeviceConnectivityManager(this.connectivityCheckFrequency, TimeSpan.FromMinutes(2));
                return(deviceConnectivityManager);
            })
            .As <IDeviceConnectivityManager>()
            .SingleInstance();

            // IDeviceClientProvider
            builder.Register(c =>
            {
                IClientProvider underlyingClientProvider        = new ClientProvider();
                IClientProvider connectivityAwareClientProvider = new ConnectivityAwareClientProvider(underlyingClientProvider, c.Resolve <IDeviceConnectivityManager>());
                return(connectivityAwareClientProvider);
            })
            .As <IClientProvider>()
            .SingleInstance();

            // ICloudConnectionProvider
            builder.Register(c => new CloudConnectionProvider(c.Resolve <Core.IMessageConverterProvider>(), this.connectionPoolSize, c.Resolve <IClientProvider>(), this.upstreamProtocol))
            .As <ICloudConnectionProvider>()
            .SingleInstance();

            if (this.isStoreAndForwardEnabled || this.cacheTokens)
            {
                // Detect system environment
                builder.Register(c => new SystemEnvironment())
                .As <ISystemEnvironment>()
                .SingleInstance();

                // DataBase options
                builder.Register(c => new Storage.RocksDb.RocksDbOptionsProvider(c.Resolve <ISystemEnvironment>(), this.optimizeForPerformance))
                .As <Storage.RocksDb.IRocksDbOptionsProvider>()
                .SingleInstance();

                // IDbStore
                builder.Register(
                    c =>
                {
                    var loggerFactory = c.Resolve <ILoggerFactory>();
                    ILogger logger    = loggerFactory.CreateLogger(typeof(RoutingModule));

                    if (this.usePersistentStorage)
                    {
                        // Create partitions for messages and twins
                        var partitionsList = new List <string> {
                            Core.Constants.MessageStorePartitionKey, Core.Constants.TwinStorePartitionKey, Core.Constants.CheckpointStorePartitionKey
                        };
                        try
                        {
                            IDbStoreProvider dbStoreprovider = Storage.RocksDb.DbStoreProvider.Create(c.Resolve <Storage.RocksDb.IRocksDbOptionsProvider>(),
                                                                                                      this.storagePath, partitionsList);
                            logger.LogInformation($"Created persistent store at {this.storagePath}");
                            return(dbStoreprovider);
                        }
                        catch (Exception ex) when(!ExceptionEx.IsFatal(ex))
                        {
                            logger.LogError(ex, "Error creating RocksDB store. Falling back to in-memory store.");
                            return(new InMemoryDbStoreProvider());
                        }
                    }
                    else
                    {
                        logger.LogInformation($"Using in-memory store");
                        return(new InMemoryDbStoreProvider());
                    }
                })
                .As <IDbStoreProvider>()
                .SingleInstance();
            }

            // Task<ICredentialsStore>
            builder.Register(async c =>
            {
                if (this.cacheTokens)
                {
                    var dbStoreProvider = c.Resolve <IDbStoreProvider>();
                    IEncryptionProvider encryptionProvider = await this.workloadUri.Map(
                        async uri => await EncryptionProvider.CreateAsync(
                            this.storagePath,
                            new Uri(uri),
                            Service.Constants.WorkloadApiVersion,
                            this.edgeModuleId,
                            this.edgeModuleGenerationId.Expect(() => new InvalidOperationException("Missing generation ID")),
                            Service.Constants.InitializationVectorFileName) as IEncryptionProvider)
                                                             .GetOrElse(() => Task.FromResult <IEncryptionProvider>(NullEncryptionProvider.Instance));
                    IStoreProvider storeProvider = new StoreProvider(dbStoreProvider);
                    IEntityStore <string, string> tokenCredentialsEntityStore = storeProvider.GetEntityStore <string, string>("tokenCredentials");
                    return(new TokenCredentialsStore(tokenCredentialsEntityStore, encryptionProvider));
                }
                else
                {
                    return(new NullCredentialsStore() as ICredentialsStore);
                }
            })
            .As <Task <ICredentialsStore> >()
            .SingleInstance();

            // IConnectionManager
            builder.Register(c => new ConnectionManager(c.Resolve <ICloudConnectionProvider>(), this.maxConnectedClients))
            .As <IConnectionManager>()
            .SingleInstance();

            // IEndpointFactory
            builder.Register(c => new EndpointFactory(c.Resolve <IConnectionManager>(), c.Resolve <Core.IMessageConverter <IRoutingMessage> >(), this.edgeDeviceId))
            .As <IEndpointFactory>()
            .SingleInstance();

            // RouteFactory
            builder.Register(c => new EdgeRouteFactory(c.Resolve <IEndpointFactory>()))
            .As <RouteFactory>()
            .SingleInstance();

            // RouterConfig
            builder.Register(c => new RouterConfig(Enumerable.Empty <Route>()))
            .As <RouterConfig>()
            .SingleInstance();

            if (!this.isStoreAndForwardEnabled)
            {
                // EndpointExecutorConfig
                builder.Register(
                    c =>
                {
                    RetryStrategy defaultRetryStrategy = new FixedInterval(0, TimeSpan.FromSeconds(1));
                    TimeSpan defaultRevivePeriod       = TimeSpan.FromHours(1);
                    TimeSpan defaultTimeout            = TimeSpan.FromSeconds(60);
                    return(new EndpointExecutorConfig(defaultTimeout, defaultRetryStrategy, defaultRevivePeriod, true));
                })
                .As <EndpointExecutorConfig>()
                .SingleInstance();

                // IEndpointExecutorFactory
                builder.Register(c => new SyncEndpointExecutorFactory(c.Resolve <EndpointExecutorConfig>()))
                .As <IEndpointExecutorFactory>()
                .SingleInstance();

                // Task<Router>
                builder.Register(
                    async c =>
                {
                    var endpointExecutorFactory = c.Resolve <IEndpointExecutorFactory>();
                    var routerConfig            = c.Resolve <RouterConfig>();
                    Router router = await Router.CreateAsync(Guid.NewGuid().ToString(), this.iotHubName, routerConfig, endpointExecutorFactory);
                    return(router);
                })
                .As <Task <Router> >()
                .SingleInstance();

                // ITwinManager
                builder.Register(c => TwinManager.CreateTwinManager(c.Resolve <IConnectionManager>(), c.Resolve <IMessageConverterProvider>(), Option.None <IStoreProvider>()))
                .As <ITwinManager>()
                .SingleInstance();
            }
            else
            {
                // EndpointExecutorConfig
                builder.Register(
                    c =>
                {
                    // Endpoint executor config values -
                    // ExponentialBackoff - minBackoff = 1s, maxBackoff = 60s, delta (used to add randomness to backoff) - 1s (default)
                    // Num of retries = int.MaxValue(we want to keep retrying till the message is sent)
                    // Revive period - period for which the endpoint should be considered dead if it doesn't respond - 1 min (we want to try continuously till the message expires)
                    // Timeout - time for which we want for the ack from the endpoint = 30s
                    // TODO - Should the number of retries be tied to the Store and Forward ttl? Not
                    // doing that right now as that value can be changed at runtime, but these settings
                    // cannot. Need to make the number of retries dynamically configurable for that.

                    TimeSpan minWait            = TimeSpan.FromSeconds(1);
                    TimeSpan maxWait            = TimeSpan.FromSeconds(60);
                    TimeSpan delta              = TimeSpan.FromSeconds(1);
                    int retries                 = int.MaxValue;
                    RetryStrategy retryStrategy = new ExponentialBackoff(retries, minWait, maxWait, delta);
                    TimeSpan timeout            = TimeSpan.FromSeconds(30);
                    TimeSpan revivePeriod       = TimeSpan.FromSeconds(30);
                    return(new EndpointExecutorConfig(timeout, retryStrategy, revivePeriod));
                })
                .As <EndpointExecutorConfig>()
                .SingleInstance();

                // ICheckpointStore
                builder.Register(c => CheckpointStore.Create(c.Resolve <IDbStoreProvider>()))
                .As <ICheckpointStore>()
                .SingleInstance();

                // IMessageStore
                builder.Register(
                    c =>
                {
                    var checkpointStore          = c.Resolve <ICheckpointStore>();
                    var dbStoreProvider          = c.Resolve <IDbStoreProvider>();
                    IStoreProvider storeProvider = new StoreProvider(dbStoreProvider);
                    IMessageStore messageStore   = new MessageStore(storeProvider, checkpointStore, TimeSpan.MaxValue);
                    return(messageStore);
                })
                .As <IMessageStore>()
                .SingleInstance();

                // IEndpointExecutorFactory
                builder.Register(
                    c =>
                {
                    var endpointExecutorConfig = c.Resolve <EndpointExecutorConfig>();
                    var messageStore           = c.Resolve <IMessageStore>();
                    IEndpointExecutorFactory endpointExecutorFactory = new StoringAsyncEndpointExecutorFactory(endpointExecutorConfig, new AsyncEndpointExecutorOptions(10, TimeSpan.FromSeconds(10)), messageStore);
                    return(endpointExecutorFactory);
                })
                .As <IEndpointExecutorFactory>()
                .SingleInstance();

                // Task<Router>
                builder.Register(
                    async c =>
                {
                    var checkpointStore         = c.Resolve <ICheckpointStore>();
                    var routerConfig            = c.Resolve <RouterConfig>();
                    var endpointExecutorFactory = c.Resolve <IEndpointExecutorFactory>();
                    return(await Router.CreateAsync(Guid.NewGuid().ToString(), this.iotHubName, routerConfig, endpointExecutorFactory, checkpointStore));
                })
                .As <Task <Router> >()
                .SingleInstance();

                // ITwinManager
                builder.Register(c => TwinManager.CreateTwinManager(c.Resolve <IConnectionManager>(), c.Resolve <IMessageConverterProvider>(), Option.Some <IStoreProvider>(new StoreProvider(c.Resolve <IDbStoreProvider>()))))
                .As <ITwinManager>()
                .SingleInstance();
            }

            // IClientCredentials "EdgeHubCredentials"
            builder.Register(
                c =>
            {
                var identityFactory = c.Resolve <IClientCredentialsFactory>();
                IClientCredentials edgeHubCredentials = this.connectionString.Map(cs => identityFactory.GetWithConnectionString(cs)).GetOrElse(
                    () => identityFactory.GetWithIotEdged(this.edgeDeviceId, this.edgeModuleId));
                return(edgeHubCredentials);
            })
            .Named <IClientCredentials>("EdgeHubCredentials")
            .SingleInstance();

            // Task<ICloudProxy> "EdgeHubCloudProxy"
            builder.Register(
                async c =>
            {
                var edgeHubCredentials          = c.ResolveNamed <IClientCredentials>("EdgeHubCredentials");
                var connectionManager           = c.Resolve <IConnectionManager>();
                Try <ICloudProxy> cloudProxyTry = await connectionManager.CreateCloudConnectionAsync(edgeHubCredentials);
                if (!cloudProxyTry.Success)
                {
                    throw new EdgeHubConnectionException("Edge hub is unable to connect to IoT Hub", cloudProxyTry.Exception);
                }

                ICloudProxy cloudProxy = cloudProxyTry.Value;
                return(cloudProxy);
            })
            .Named <Task <ICloudProxy> >("EdgeHubCloudProxy")
            .SingleInstance();

            // Task<IEdgeHub>
            builder.Register(
                async c =>
            {
                Router router = await c.Resolve <Task <Router> >();
                IEdgeHub hub  = new RoutingEdgeHub(router, c.Resolve <Core.IMessageConverter <IRoutingMessage> >(), c.Resolve <IConnectionManager>(), c.Resolve <ITwinManager>(), this.edgeDeviceId);
                return(hub);
            })
            .As <Task <IEdgeHub> >()
            .SingleInstance();

            // Task<ConfigUpdater>
            builder.Register(
                async c =>
            {
                IMessageStore messageStore = this.isStoreAndForwardEnabled ? c.Resolve <IMessageStore>() : null;
                Router router     = await c.Resolve <Task <Router> >();
                var configUpdater = new ConfigUpdater(router, messageStore);
                return(configUpdater);
            })
            .As <Task <ConfigUpdater> >()
            .SingleInstance();

            // Task<IConfigSource>
            builder.Register(
                async c =>
            {
                var routeFactory = c.Resolve <RouteFactory>();

                if (this.useTwinConfig)
                {
                    var connectionManager              = c.Resolve <IConnectionManager>();
                    var edgeHubCredentials             = c.ResolveNamed <IClientCredentials>("EdgeHubCredentials");
                    var twinCollectionMessageConverter = c.Resolve <Core.IMessageConverter <TwinCollection> >();
                    var twinMessageConverter           = c.Resolve <Core.IMessageConverter <Twin> >();
                    var twinManager                 = c.Resolve <ITwinManager>();
                    ICloudProxy cloudProxy          = await c.ResolveNamed <Task <ICloudProxy> >("EdgeHubCloudProxy");
                    IEdgeHub edgeHub                = await c.Resolve <Task <IEdgeHub> >();
                    IConfigSource edgeHubConnection = await EdgeHubConnection.Create(
                        edgeHubCredentials.Identity as IModuleIdentity,
                        edgeHub,
                        twinManager,
                        connectionManager,
                        cloudProxy,
                        routeFactory,
                        twinCollectionMessageConverter,
                        twinMessageConverter,
                        this.versionInfo
                        );
                    return(edgeHubConnection);
                }
                else
                {
                    return(new LocalConfigSource(routeFactory, this.routes, this.storeAndForwardConfiguration));
                }
            })
            .As <Task <IConfigSource> >()
            .SingleInstance();

            // Task<IConnectionProvider>
            builder.Register(
                async c =>
            {
                IEdgeHub edgeHub = await c.Resolve <Task <IEdgeHub> >();
                IConnectionProvider connectionProvider = new ConnectionProvider(c.Resolve <IConnectionManager>(), edgeHub);
                return(connectionProvider);
            })
            .As <Task <IConnectionProvider> >()
            .SingleInstance();

            base.Load(builder);
        }
Esempio n. 3
0
        protected override void Load(ContainerBuilder builder)
        {
            // ISignatureProvider
            builder.Register(
                c =>
            {
                ISignatureProvider signatureProvider = this.edgeHubConnectionString.Map(
                    cs =>
                {
                    IotHubConnectionStringBuilder csBuilder = IotHubConnectionStringBuilder.Create(cs);
                    return(new SharedAccessKeySignatureProvider(csBuilder.SharedAccessKey) as ISignatureProvider);
                })
                                                       .GetOrElse(
                    () =>
                {
                    string edgeHubGenerationId = this.edgeHubGenerationId.Expect(() => new InvalidOperationException("Generation ID missing"));
                    string workloadUri         = this.workloadUri.Expect(() => new InvalidOperationException("workloadUri is missing"));
                    return(new HttpHsmSignatureProvider(this.edgeHubModuleId, edgeHubGenerationId, workloadUri, Service.Constants.WorkloadApiVersion) as ISignatureProvider);
                });
                return(signatureProvider);
            })
            .As <ISignatureProvider>()
            .SingleInstance();

            // Detect system environment
            builder.Register(c => new SystemEnvironment())
            .As <ISystemEnvironment>()
            .SingleInstance();

            // DataBase options
            builder.Register(c => new Storage.RocksDb.RocksDbOptionsProvider(c.Resolve <ISystemEnvironment>(), this.optimizeForPerformance))
            .As <Storage.RocksDb.IRocksDbOptionsProvider>()
            .SingleInstance();

            // IDbStoreProvider
            builder.Register(
                c =>
            {
                var loggerFactory = c.Resolve <ILoggerFactory>();
                ILogger logger    = loggerFactory.CreateLogger(typeof(RoutingModule));

                if (this.usePersistentStorage)
                {
                    // Create partitions for messages and twins
                    var partitionsList = new List <string> {
                        Core.Constants.MessageStorePartitionKey, Core.Constants.TwinStorePartitionKey, Core.Constants.CheckpointStorePartitionKey
                    };
                    try
                    {
                        IDbStoreProvider dbStoreprovider = Storage.RocksDb.DbStoreProvider.Create(c.Resolve <Storage.RocksDb.IRocksDbOptionsProvider>(),
                                                                                                  this.storagePath, partitionsList);
                        logger.LogInformation($"Created persistent store at {this.storagePath}");
                        return(dbStoreprovider);
                    }
                    catch (Exception ex) when(!ExceptionEx.IsFatal(ex))
                    {
                        logger.LogError(ex, "Error creating RocksDB store. Falling back to in-memory store.");
                        return(new InMemoryDbStoreProvider());
                    }
                }
                else
                {
                    logger.LogInformation($"Using in-memory store");
                    return(new InMemoryDbStoreProvider());
                }
            })
            .As <IDbStoreProvider>()
            .SingleInstance();

            // Task<IEncryptionProvider>
            builder.Register(
                async c =>
            {
                IEncryptionProvider encryptionProvider = await this.workloadUri.Map(
                    async uri => await EncryptionProvider.CreateAsync(
                        this.storagePath,
                        new Uri(uri),
                        Service.Constants.WorkloadApiVersion,
                        this.edgeHubModuleId,
                        this.edgeHubGenerationId.Expect(() => new InvalidOperationException("Missing generation ID")),
                        Service.Constants.InitializationVectorFileName) as IEncryptionProvider)
                                                         .GetOrElse(() => Task.FromResult <IEncryptionProvider>(NullEncryptionProvider.Instance));
                return(encryptionProvider);
            })
            .As <Task <IEncryptionProvider> >()
            .SingleInstance();

            // IStoreProvider
            builder.Register(c => new StoreProvider(c.Resolve <IDbStoreProvider>()))
            .As <IStoreProvider>()
            .SingleInstance();

            // ITokenProvider
            builder.Register(c => new ModuleTokenProvider(c.Resolve <ISignatureProvider>(), this.iothubHostName, this.edgeDeviceId, this.edgeHubModuleId, TimeSpan.FromHours(1)))
            .Named <ITokenProvider>("EdgeHubClientAuthTokenProvider")
            .SingleInstance();

            // ITokenProvider
            builder.Register(c =>
            {
                string deviceId = WebUtility.UrlEncode(this.edgeDeviceId);
                string moduleId = WebUtility.UrlEncode(this.edgeHubModuleId);
                return(new ModuleTokenProvider(c.Resolve <ISignatureProvider>(), this.iothubHostName, deviceId, moduleId, TimeSpan.FromHours(1)));
            })
            .Named <ITokenProvider>("EdgeHubServiceAuthTokenProvider")
            .SingleInstance();

            // Task<IKeyValueStore<string, string>> - EncryptedStore
            builder.Register(
                async c =>
            {
                var storeProvider = c.Resolve <IStoreProvider>();
                IEncryptionProvider encryptionProvider         = await c.Resolve <Task <IEncryptionProvider> >();
                IEntityStore <string, string> entityStore      = storeProvider.GetEntityStore <string, string>("SecurityScopeCache");
                IKeyValueStore <string, string> encryptedStore = new EncryptedStore <string, string>(entityStore, encryptionProvider);
                return(encryptedStore);
            })
            .Named <Task <IKeyValueStore <string, string> > >("EncryptedStore")
            .SingleInstance();


            // Task<IDeviceScopeIdentitiesCache>
            builder.Register(
                async c =>
            {
                IDeviceScopeIdentitiesCache deviceScopeIdentitiesCache;
                if (this.authenticationMode == AuthenticationMode.CloudAndScope || this.authenticationMode == AuthenticationMode.Scope)
                {
                    var edgeHubTokenProvider = c.ResolveNamed <ITokenProvider>("EdgeHubServiceAuthTokenProvider");
                    IDeviceScopeApiClient securityScopesApiClient = new DeviceScopeApiClient(this.iothubHostName, this.edgeDeviceId, this.edgeHubModuleId, 10, edgeHubTokenProvider);
                    IServiceProxy serviceProxy = new ServiceProxy(securityScopesApiClient);
                    IKeyValueStore <string, string> encryptedStore = await c.ResolveNamed <Task <IKeyValueStore <string, string> > >("EncryptedStore");
                    deviceScopeIdentitiesCache = await DeviceScopeIdentitiesCache.Create(serviceProxy, encryptedStore, this.scopeCacheRefreshRate);
                }
                else
                {
                    deviceScopeIdentitiesCache = new NullDeviceScopeIdentitiesCache();
                }

                return(deviceScopeIdentitiesCache);
            })
            .As <Task <IDeviceScopeIdentitiesCache> >()
            .SingleInstance();

            // Task<IAuthenticator>
            builder.Register(async c =>
            {
                IConnectionManager connectionManager = await c.Resolve <Task <IConnectionManager> >();
                IAuthenticator tokenAuthenticator;
                IDeviceScopeIdentitiesCache deviceScopeIdentitiesCache;
                switch (this.authenticationMode)
                {
                case AuthenticationMode.Cloud:
                    if (this.cacheTokens)
                    {
                        ICredentialsStore credentialsStore = await c.Resolve <Task <ICredentialsStore> >();
                        IAuthenticator authenticator       = new CloudTokenAuthenticator(connectionManager);
                        tokenAuthenticator = new TokenCacheAuthenticator(authenticator, credentialsStore, this.iothubHostName);
                    }
                    else
                    {
                        tokenAuthenticator = new CloudTokenAuthenticator(connectionManager);
                    }
                    break;

                case AuthenticationMode.Scope:
                    deviceScopeIdentitiesCache = await c.Resolve <Task <IDeviceScopeIdentitiesCache> >();
                    tokenAuthenticator         = new DeviceScopeTokenAuthenticator(deviceScopeIdentitiesCache, this.iothubHostName, this.edgeDeviceHostName, new NullAuthenticator(), connectionManager);
                    break;

                default:
                    deviceScopeIdentitiesCache        = await c.Resolve <Task <IDeviceScopeIdentitiesCache> >();
                    IAuthenticator cloudAuthenticator = new CloudTokenAuthenticator(connectionManager);
                    tokenAuthenticator = new DeviceScopeTokenAuthenticator(deviceScopeIdentitiesCache, this.iothubHostName, this.edgeDeviceHostName, cloudAuthenticator, connectionManager);
                    break;
                }

                return(new Authenticator(tokenAuthenticator, this.edgeDeviceId, connectionManager) as IAuthenticator);
            })
            .As <Task <IAuthenticator> >()
            .SingleInstance();

            // IClientCredentialsFactory
            builder.Register(c => new ClientCredentialsFactory(this.iothubHostName, this.productInfo))
            .As <IClientCredentialsFactory>()
            .SingleInstance();

            base.Load(builder);
        }
Esempio n. 4
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        protected override void Load(ContainerBuilder builder)
        {
            // ISerde<ModuleSet>
            builder.Register(
                c => new ModuleSetSerde(
                    new Dictionary <string, Type>
            {
                { DockerType, typeof(DockerModule) }
            }))
            .As <ISerde <ModuleSet> >()
            .SingleInstance();

            // ISerde<DeploymentConfig>
            builder.Register(
                c =>
            {
                ISerde <DeploymentConfig> serde = new TypeSpecificSerDe <DeploymentConfig>(DeploymentConfigTypeMapping);
                return(serde);
            })
            .As <ISerde <DeploymentConfig> >()
            .SingleInstance();

            // ISerde<DeploymentConfigInfo>
            builder.Register(
                c =>
            {
                ISerde <DeploymentConfigInfo> serde = new TypeSpecificSerDe <DeploymentConfigInfo>(DeploymentConfigTypeMapping);
                return(serde);
            })
            .As <ISerde <DeploymentConfigInfo> >()
            .SingleInstance();

            // Detect system environment
            builder.Register(c => new SystemEnvironment())
            .As <ISystemEnvironment>()
            .SingleInstance();

            // IRocksDbOptionsProvider
            // For EdgeAgent, we don't need high performance from RocksDb, so always turn off optimizeForPerformance
            builder.Register(c => new RocksDbOptionsProvider(c.Resolve <ISystemEnvironment>(), false))
            .As <IRocksDbOptionsProvider>()
            .SingleInstance();

            if (!this.usePersistentStorage && this.useBackupAndRestore)
            {
                // Backup and restore serialization
                builder.Register(c => new ProtoBufDataBackupRestore())
                .As <IDataBackupRestore>()
                .SingleInstance();
            }

            // IDbStoreProvider
            builder.Register(
                async c =>
            {
                var loggerFactory = c.Resolve <ILoggerFactory>();
                ILogger logger    = loggerFactory.CreateLogger(typeof(AgentModule));

                if (this.usePersistentStorage)
                {
                    // Create partition for mma
                    var partitionsList = new List <string> {
                        "moduleState", "deploymentConfig"
                    };
                    try
                    {
                        IDbStoreProvider dbStoreprovider = DbStoreProvider.Create(
                            c.Resolve <IRocksDbOptionsProvider>(),
                            this.storagePath,
                            partitionsList);
                        logger.LogInformation($"Created persistent store at {this.storagePath}");
                        return(dbStoreprovider);
                    }
                    catch (Exception ex) when(!ExceptionEx.IsFatal(ex))
                    {
                        logger.LogError(ex, "Error creating RocksDB store. Falling back to in-memory store.");
                        IDbStoreProvider dbStoreProvider = await this.BuildInMemoryDbStoreProvider(c);
                        return(dbStoreProvider);
                    }
                }
                else
                {
                    logger.LogInformation($"Using in-memory store");
                    IDbStoreProvider dbStoreProvider = await this.BuildInMemoryDbStoreProvider(c);
                    return(dbStoreProvider);
                }
            })
            .As <Task <IDbStoreProvider> >()
            .SingleInstance();

            // Task<IStoreProvider>
            builder.Register(async c =>
            {
                var dbStoreProvider          = await c.Resolve <Task <IDbStoreProvider> >();
                IStoreProvider storeProvider = new StoreProvider(dbStoreProvider);
                return(storeProvider);
            })
            .As <Task <IStoreProvider> >()
            .SingleInstance();

            // IEntityStore<string, ModuleState>
            builder.Register(async c =>
            {
                IStoreProvider storeProvider = await c.Resolve <Task <IStoreProvider> >();
                return(storeProvider.GetEntityStore <string, ModuleState>("moduleState"));
            })
            .As <Task <IEntityStore <string, ModuleState> > >()
            .SingleInstance();

            // IEntityStore<string, DeploymentConfigInfo>
            builder.Register(async c =>
            {
                IStoreProvider storeProvider = await c.Resolve <Task <IStoreProvider> >();
                return(storeProvider.GetEntityStore <string, string>("deploymentConfig"));
            })
            .As <Task <IEntityStore <string, string> > >()
            .SingleInstance();

            // IRestartManager
            builder.Register(c => new RestartPolicyManager(this.maxRestartCount, this.coolOffTimeUnitInSeconds))
            .As <IRestartPolicyManager>()
            .SingleInstance();

            // IPlanner
            builder.Register(
                async c => new HealthRestartPlanner(
                    await c.Resolve <Task <ICommandFactory> >(),
                    await c.Resolve <Task <IEntityStore <string, ModuleState> > >(),
                    this.intensiveCareTime,
                    c.Resolve <IRestartPolicyManager>()) as IPlanner)
            .As <Task <IPlanner> >()
            .SingleInstance();

            // IPlanRunner
            builder.Register(c => new OrderedRetryPlanRunner(this.maxRestartCount, this.coolOffTimeUnitInSeconds, SystemTime.Instance))
            .As <IPlanRunner>()
            .SingleInstance();

            // IEncryptionDecryptionProvider
            builder.Register(
                async c =>
            {
                IEncryptionProvider provider = await this.workloadUri.Map(
                    async uri =>
                {
                    IEncryptionProvider encryptionProvider = await EncryptionProvider.CreateAsync(
                        this.storagePath,
                        uri,
                        this.workloadApiVersion.Expect(() => new InvalidOperationException("Missing workload API version")),
                        Constants.EdgeletClientApiVersion,
                        this.moduleId,
                        this.moduleGenerationId.Expect(() => new InvalidOperationException("Missing generation ID")),
                        Constants.EdgeletInitializationVectorFileName);
                    return(encryptionProvider);
                }).GetOrElse(() => Task.FromResult <IEncryptionProvider>(NullEncryptionProvider.Instance));

                return(provider);
            })
            .As <Task <IEncryptionProvider> >()
            .SingleInstance();

            // IAvailabilityMetric
            builder.Register(c => new AvailabilityMetrics(c.Resolve <IMetricsProvider>(), this.storagePath))
            .As <IAvailabilityMetric>()
            .SingleInstance();

            // Task<Agent>
            builder.Register(
                async c =>
            {
                var configSource                   = c.Resolve <Task <IConfigSource> >();
                var environmentProvider            = c.Resolve <Task <IEnvironmentProvider> >();
                var planner                        = c.Resolve <Task <IPlanner> >();
                var planRunner                     = c.Resolve <IPlanRunner>();
                var reporter                       = c.Resolve <IReporter>();
                var moduleIdentityLifecycleManager = c.Resolve <IModuleIdentityLifecycleManager>();
                var deploymentConfigInfoSerde      = c.Resolve <ISerde <DeploymentConfigInfo> >();
                var deploymentConfigInfoStore      = await c.Resolve <Task <IEntityStore <string, string> > >();
                var encryptionProvider             = c.Resolve <Task <IEncryptionProvider> >();
                var availabilityMetric             = c.Resolve <IAvailabilityMetric>();
                return(await Agent.Create(
                           await configSource,
                           await planner,
                           planRunner,
                           reporter,
                           moduleIdentityLifecycleManager,
                           await environmentProvider,
                           deploymentConfigInfoStore,
                           deploymentConfigInfoSerde,
                           await encryptionProvider,
                           availabilityMetric));
            })
            .As <Task <Agent> >()
            .SingleInstance();

            base.Load(builder);
        }
Esempio n. 5
0
        protected override void Load(ContainerBuilder builder)
        {
            // IMetricsListener
            builder.Register(
                c =>
                this.metricsConfig.Enabled
                            ? new MetricsListener(this.metricsConfig.ListenerConfig, c.Resolve <IMetricsProvider>())
                            : new NullMetricsListener() as IMetricsListener)
            .As <IMetricsListener>()
            .SingleInstance();

            // IMetricsProvider
            builder.Register(
                c =>
                this.metricsConfig.Enabled
                            ? new MetricsProvider(MetricsConstants.EdgeHubMetricPrefix, this.iothubHostName, this.edgeDeviceId, this.metricsConfig.HistogramMaxAge)
                            : new NullMetricsProvider() as IMetricsProvider)
            .As <IMetricsProvider>()
            .SingleInstance();

            // ISignatureProvider
            builder.Register(
                c =>
            {
                ISignatureProvider signatureProvider = this.edgeHubConnectionString.Map(
                    cs =>
                {
                    IotHubConnectionStringBuilder csBuilder = IotHubConnectionStringBuilder.Create(cs);
                    return(new SharedAccessKeySignatureProvider(csBuilder.SharedAccessKey) as ISignatureProvider);
                })
                                                       .GetOrElse(
                    () =>
                {
                    string edgeHubGenerationId = this.edgeHubGenerationId.Expect(() => new InvalidOperationException("Generation ID missing"));
                    string workloadUri         = this.workloadUri.Expect(() => new InvalidOperationException("workloadUri is missing"));
                    string workloadApiVersion  = this.workloadApiVersion.Expect(() => new InvalidOperationException("workloadUri version is missing"));
                    return(new HttpHsmSignatureProvider(this.edgeHubModuleId, edgeHubGenerationId, workloadUri, workloadApiVersion, Constants.WorkloadApiVersion) as ISignatureProvider);
                });
                return(signatureProvider);
            })
            .As <ISignatureProvider>()
            .SingleInstance();

            // Detect system environment
            builder.Register(c => new SystemEnvironment())
            .As <ISystemEnvironment>()
            .SingleInstance();

            // DataBase options
            builder.Register(c => new RocksDbOptionsProvider(c.Resolve <ISystemEnvironment>(), this.optimizeForPerformance, this.storageMaxTotalWalSize, this.storageMaxOpenFiles, this.storageLogLevel))
            .As <IRocksDbOptionsProvider>()
            .SingleInstance();

            if (!this.usePersistentStorage && this.useBackupAndRestore)
            {
                // Backup and restore serialization
                builder.Register(c => new ProtoBufDataBackupRestore())
                .As <IDataBackupRestore>()
                .SingleInstance();
            }

            // IStorageSpaceChecker
            builder.Register(
                c =>
            {
                IStorageSpaceChecker spaceChecker = !this.usePersistentStorage
                       ? new MemorySpaceChecker(() => 0L) as IStorageSpaceChecker
                       : new NullStorageSpaceChecker();
                return(spaceChecker);
            })
            .As <IStorageSpaceChecker>()
            .SingleInstance();

            // IDbStoreProvider
            builder.Register(
                async c =>
            {
                var loggerFactory = c.Resolve <ILoggerFactory>();
                ILogger logger    = loggerFactory.CreateLogger(typeof(RoutingModule));

                if (this.usePersistentStorage)
                {
                    // Create partitions for messages and twins
                    var partitionsList = new List <string> {
                        Core.Constants.MessageStorePartitionKey, Core.Constants.TwinStorePartitionKey, Core.Constants.CheckpointStorePartitionKey
                    };
                    try
                    {
                        IDbStoreProvider dbStoreProvider = DbStoreProvider.Create(
                            c.Resolve <IRocksDbOptionsProvider>(),
                            this.storagePath,
                            partitionsList);
                        logger.LogInformation($"Created persistent store at {this.storagePath}");
                        return(dbStoreProvider);
                    }
                    catch (Exception ex) when(!ex.IsFatal())
                    {
                        logger.LogError(ex, "Error creating RocksDB store. Falling back to in-memory store.");
                        IDbStoreProvider dbStoreProvider = await this.BuildInMemoryDbStoreProvider(c);
                        return(dbStoreProvider);
                    }
                }
                else
                {
                    logger.LogInformation($"Using in-memory store");
                    IDbStoreProvider dbStoreProvider = await this.BuildInMemoryDbStoreProvider(c);
                    return(dbStoreProvider);
                }
            })
            .As <Task <IDbStoreProvider> >()
            .SingleInstance();

            // Task<Option<IEncryptionProvider>>
            builder.Register(
                async c =>
            {
                Option <IEncryptionProvider> encryptionProviderOption = await this.workloadUri
                                                                        .Map(
                    async uri =>
                {
                    var encryptionProvider = await EncryptionProvider.CreateAsync(
                        this.storagePath,
                        new Uri(uri),
                        this.workloadApiVersion.Expect(() => new InvalidOperationException("Missing workload API version")),
                        Constants.WorkloadApiVersion,
                        this.edgeHubModuleId,
                        this.edgeHubGenerationId.Expect(() => new InvalidOperationException("Missing generation ID")),
                        Constants.InitializationVectorFileName) as IEncryptionProvider;
                    return(Option.Some(encryptionProvider));
                })
                                                                        .GetOrElse(() => Task.FromResult(Option.None <IEncryptionProvider>()));
                return(encryptionProviderOption);
            })
            .As <Task <Option <IEncryptionProvider> > >()
            .SingleInstance();

            // Task<IStoreProvider>
            builder.Register(async c =>
            {
                var dbStoreProvider          = await c.Resolve <Task <IDbStoreProvider> >();
                IStoreProvider storeProvider = new StoreProvider(dbStoreProvider);
                return(storeProvider);
            })
            .As <Task <IStoreProvider> >()
            .SingleInstance();

            // Task<IMetadataStore>
            builder.Register(
                async c =>
            {
                var storeProvider = await c.Resolve <Task <IStoreProvider> >();
                IKeyValueStore <string, string> entityStore = storeProvider.GetEntityStore <string, string>("ProductInfo", "MetadataStore");
                IMetadataStore metadataStore = new MetadataStore(entityStore, this.productInfo);
                return(metadataStore);
            })
            .As <Task <IMetadataStore> >()
            .SingleInstance();

            // ITokenProvider
            builder.Register(c => new ClientTokenProvider(c.Resolve <ISignatureProvider>(), this.iothubHostName, this.edgeDeviceId, this.edgeHubModuleId, TimeSpan.FromHours(1)))
            .Named <ITokenProvider>("EdgeHubClientAuthTokenProvider")
            .SingleInstance();

            // ITokenProvider
            builder.Register(
                c =>
            {
                string deviceId = WebUtility.UrlEncode(this.edgeDeviceId);
                string moduleId = WebUtility.UrlEncode(this.edgeHubModuleId);
                return(new ClientTokenProvider(c.Resolve <ISignatureProvider>(), this.iothubHostName, deviceId, moduleId, TimeSpan.FromHours(1)));
            })
            .Named <ITokenProvider>("EdgeHubServiceAuthTokenProvider")
            .SingleInstance();

            builder.Register(
                c =>
            {
                var loggerFactory = c.Resolve <ILoggerFactory>();
                var logger        = loggerFactory.CreateLogger <RoutingModule>();
                return(Proxy.Parse(this.proxy, logger));
            })
            .As <Option <IWebProxy> >()
            .SingleInstance();

            // IServiceIdentityHierarchy
            builder.Register <IServiceIdentityHierarchy>(
                c =>
            {
                if (this.nestedEdgeEnabled)
                {
                    return(new ServiceIdentityTree(this.edgeDeviceId));
                }
                else
                {
                    return(new ServiceIdentityDictionary(this.edgeDeviceId));
                }
            })
            .As <IServiceIdentityHierarchy>()
            .SingleInstance();

            // Task<IDeviceScopeIdentitiesCache>
            builder.Register(
                async c =>
            {
                IDeviceScopeIdentitiesCache deviceScopeIdentitiesCache;
                if (this.authenticationMode == AuthenticationMode.CloudAndScope || this.authenticationMode == AuthenticationMode.Scope)
                {
                    var edgeHubTokenProvider = c.ResolveNamed <ITokenProvider>("EdgeHubServiceAuthTokenProvider");
                    var proxy = c.Resolve <Option <IWebProxy> >();

                    IServiceIdentityHierarchy serviceIdentityHierarchy = c.Resolve <IServiceIdentityHierarchy>();

                    string hostName = this.gatewayHostName.GetOrElse(this.iothubHostName);
                    IDeviceScopeApiClientProvider securityScopesApiClientProvider = new DeviceScopeApiClientProvider(hostName, this.edgeDeviceId, this.edgeHubModuleId, 10, edgeHubTokenProvider, serviceIdentityHierarchy, proxy);
                    IServiceProxy serviceProxy = new ServiceProxy(securityScopesApiClientProvider, this.nestedEdgeEnabled);
                    IKeyValueStore <string, string> encryptedStore = await GetEncryptedStore(c, "DeviceScopeCache");
                    deviceScopeIdentitiesCache = await DeviceScopeIdentitiesCache.Create(serviceIdentityHierarchy, serviceProxy, encryptedStore, this.scopeCacheRefreshRate, this.scopeCacheRefreshDelay);
                }
                else
                {
                    deviceScopeIdentitiesCache = new NullDeviceScopeIdentitiesCache();
                }

                return(deviceScopeIdentitiesCache);
            })
            .As <Task <IDeviceScopeIdentitiesCache> >()
            .AutoActivate()
            .SingleInstance();

            // IRegistryApiClient
            builder.Register(
                c =>
            {
                string upstreamHostname = this.gatewayHostName.GetOrElse(this.iothubHostName);
                var proxy = c.Resolve <Option <IWebProxy> >();
                var edgeHubTokenProvider = c.ResolveNamed <ITokenProvider>("EdgeHubServiceAuthTokenProvider");
                return(new RegistryOnBehalfOfApiClient(upstreamHostname, proxy, edgeHubTokenProvider));
            })
            .As <IRegistryOnBehalfOfApiClient>()
            .SingleInstance();

            // Task<ICredentialsCache>
            builder.Register(
                async c =>
            {
                ICredentialsCache underlyingCredentialsCache;
                if (this.persistTokens)
                {
                    IKeyValueStore <string, string> encryptedStore = await GetEncryptedStore(c, "CredentialsCache");
                    return(new PersistedTokenCredentialsCache(encryptedStore));
                }
                else
                {
                    underlyingCredentialsCache = new NullCredentialsCache();
                }

                ICredentialsCache credentialsCache;

                if (this.nestedEdgeEnabled)
                {
                    credentialsCache = new NestedCredentialsCache(underlyingCredentialsCache);
                }
                else
                {
                    credentialsCache = new CredentialsCache(underlyingCredentialsCache);
                }

                return(credentialsCache);
            })
            .As <Task <ICredentialsCache> >()
            .SingleInstance();

            // Task<IAuthenticator>
            builder.Register(
                async c =>
            {
                IAuthenticator tokenAuthenticator;
                IAuthenticator certificateAuthenticator;
                IDeviceScopeIdentitiesCache deviceScopeIdentitiesCache;
                var credentialsCacheTask = c.Resolve <Task <ICredentialsCache> >();
                // by default regardless of how the authenticationMode, X.509 certificate validation will always be scoped
                deviceScopeIdentitiesCache = await c.Resolve <Task <IDeviceScopeIdentitiesCache> >();
                certificateAuthenticator   = new DeviceScopeCertificateAuthenticator(deviceScopeIdentitiesCache, new NullAuthenticator(), this.trustBundle, true, this.nestedEdgeEnabled);
                switch (this.authenticationMode)
                {
                case AuthenticationMode.Cloud:
                    tokenAuthenticator = await this.GetCloudTokenAuthenticator(c);
                    break;

                case AuthenticationMode.Scope:
                    tokenAuthenticator = new DeviceScopeTokenAuthenticator(deviceScopeIdentitiesCache, this.iothubHostName, this.edgeDeviceHostName, new NullAuthenticator(), true, true, this.nestedEdgeEnabled);
                    break;

                default:
                    IAuthenticator cloudTokenAuthenticator = await this.GetCloudTokenAuthenticator(c);
                    tokenAuthenticator = new DeviceScopeTokenAuthenticator(deviceScopeIdentitiesCache, this.iothubHostName, this.edgeDeviceHostName, cloudTokenAuthenticator, true, true, this.nestedEdgeEnabled);
                    break;
                }

                ICredentialsCache credentialsCache = await credentialsCacheTask;
                return(new Authenticator(tokenAuthenticator, certificateAuthenticator, credentialsCache) as IAuthenticator);
            })
            .As <Task <IAuthenticator> >()
            .SingleInstance();

            // IClientCredentialsFactory
            builder.Register(c => new ClientCredentialsFactory(c.Resolve <IIdentityProvider>(), this.productInfo))
            .As <IClientCredentialsFactory>()
            .SingleInstance();

            // IClientCredentials "EdgeHubCredentials"
            builder.Register(
                c =>
            {
                var identityFactory = c.Resolve <IClientCredentialsFactory>();
                IClientCredentials edgeHubCredentials = this.edgeHubConnectionString.Map(cs => identityFactory.GetWithConnectionString(cs)).GetOrElse(
                    () => identityFactory.GetWithIotEdged(this.edgeDeviceId, this.edgeHubModuleId));
                return(edgeHubCredentials);
            })
            .Named <IClientCredentials>("EdgeHubCredentials")
            .SingleInstance();

            // ServiceIdentity "EdgeHubIdentity"
            builder.Register(
                c =>
            {
                return(new ServiceIdentity(
                           this.edgeDeviceId,
                           this.edgeHubModuleId,
                           deviceScope: null,
                           parentScopes: new List <string>(),
                           this.edgeHubGenerationId.GetOrElse("0"),
                           capabilities: new List <string>(),
                           new ServiceAuthentication(ServiceAuthenticationType.None),
                           ServiceIdentityStatus.Enabled));
            })
            .Named <ServiceIdentity>("EdgeHubIdentity")
            .SingleInstance();

            // ConnectionReauthenticator
            builder.Register(
                async c =>
            {
                var edgeHubCredentials               = c.ResolveNamed <IClientCredentials>("EdgeHubCredentials");
                var connectionManagerTask            = c.Resolve <Task <IConnectionManager> >();
                var authenticatorTask                = c.Resolve <Task <IAuthenticator> >();
                var credentialsCacheTask             = c.Resolve <Task <ICredentialsCache> >();
                var deviceScopeIdentitiesCacheTask   = c.Resolve <Task <IDeviceScopeIdentitiesCache> >();
                var deviceConnectivityManager        = c.Resolve <IDeviceConnectivityManager>();
                IConnectionManager connectionManager = await connectionManagerTask;
                IAuthenticator authenticator         = await authenticatorTask;
                ICredentialsCache credentialsCache   = await credentialsCacheTask;
                IDeviceScopeIdentitiesCache deviceScopeIdentitiesCache = await deviceScopeIdentitiesCacheTask;
                var connectionReauthenticator = new ConnectionReauthenticator(
                    connectionManager,
                    authenticator,
                    credentialsCache,
                    deviceScopeIdentitiesCache,
                    TimeSpan.FromMinutes(5),
                    edgeHubCredentials.Identity,
                    deviceConnectivityManager);
                return(connectionReauthenticator);
            })
            .As <Task <ConnectionReauthenticator> >()
            .SingleInstance();

            base.Load(builder);
        }