public static async Task <bool> ReceiveData(RemoteJSRuntime runtime, long streamId, long chunkId, byte[] chunk, string error)
{
if (!runtime.RemoteJSDataStreamInstances.TryGetValue(streamId, out var instance))
{
// There is no data stream with the given identifier. It may have already been disposed.
// We notify JS that the stream has been cancelled/disposed.
return(false);
}
return(await instance.ReceiveData(chunkId, chunk, error));
}
/// <summary>
/// Creates a new <see cref="RemoteRenderer"/>.
/// </summary>
public RemoteRenderer(
IServiceProvider serviceProvider,
ILoggerFactory loggerFactory,
CircuitOptions options,
CircuitClientProxy client,
ILogger logger,
RemoteJSRuntime jsRuntime,
CircuitJSComponentInterop jsComponentInterop)
: base(serviceProvider, loggerFactory, jsRuntime.ReadJsonSerializerOptions(), jsComponentInterop)
{
_client = client;
_options = options;
_logger = logger;
ElementReferenceContext = jsRuntime.ElementReferenceContext;
}
public CircuitHost(
CircuitId circuitId,
AsyncServiceScope scope,
CircuitOptions options,
CircuitClientProxy client,
RemoteRenderer renderer,
IReadOnlyList <ComponentDescriptor> descriptors,
RemoteJSRuntime jsRuntime,
RemoteNavigationManager navigationManager,
CircuitHandler[] circuitHandlers,
ILogger logger)
{
CircuitId = circuitId;
if (CircuitId.Secret is null)
{
// Prevent the use of a 'default' secret.
throw new ArgumentException($"Property '{nameof(CircuitId.Secret)}' cannot be null.", nameof(circuitId));
}
_scope = scope;
_options = options ?? throw new ArgumentNullException(nameof(options));
Client = client ?? throw new ArgumentNullException(nameof(client));
Renderer = renderer ?? throw new ArgumentNullException(nameof(renderer));
Descriptors = descriptors ?? throw new ArgumentNullException(nameof(descriptors));
JSRuntime = jsRuntime ?? throw new ArgumentNullException(nameof(jsRuntime));
_navigationManager = navigationManager ?? throw new ArgumentNullException(nameof(navigationManager));
_circuitHandlers = circuitHandlers ?? throw new ArgumentNullException(nameof(circuitHandlers));
_logger = logger ?? throw new ArgumentNullException(nameof(logger));
Services = scope.ServiceProvider;
Circuit = new Circuit(this);
Handle = new CircuitHandle()
{
CircuitHost = this,
};
// An unhandled exception from the renderer is always fatal because it came from user code.
Renderer.UnhandledException += ReportAndInvoke_UnhandledException;
Renderer.UnhandledSynchronizationException += SynchronizationContext_UnhandledException;
JSRuntime.UnhandledException += ReportAndInvoke_UnhandledException;
_navigationManager.UnhandledException += ReportAndInvoke_UnhandledException;
}
public static CircuitHost Create(
CircuitId?circuitId = null,
AsyncServiceScope?serviceScope = null,
RemoteRenderer remoteRenderer = null,
IReadOnlyList <ComponentDescriptor> descriptors = null,
CircuitHandler[] handlers = null,
CircuitClientProxy clientProxy = null)
{
serviceScope = serviceScope ?? new AsyncServiceScope(Mock.Of <IServiceScope>());
clientProxy = clientProxy ?? new CircuitClientProxy(Mock.Of <IClientProxy>(), Guid.NewGuid().ToString());
var jsRuntime = new RemoteJSRuntime(Options.Create(new CircuitOptions()), Options.Create(new HubOptions <ComponentHub>()), Mock.Of <ILogger <RemoteJSRuntime> >());
var navigationManager = new RemoteNavigationManager(Mock.Of <ILogger <RemoteNavigationManager> >());
var serviceProvider = new Mock <IServiceProvider>();
serviceProvider
.Setup(services => services.GetService(typeof(IJSRuntime)))
.Returns(jsRuntime);
if (remoteRenderer == null)
{
remoteRenderer = new RemoteRenderer(
serviceProvider.Object,
NullLoggerFactory.Instance,
new CircuitOptions(),
clientProxy,
NullLogger.Instance,
jsRuntime,
new CircuitJSComponentInterop(new CircuitOptions()));
}
handlers ??= Array.Empty <CircuitHandler>();
return(new TestCircuitHost(
circuitId is null ? new CircuitId(Guid.NewGuid().ToString(), Guid.NewGuid().ToString()) : circuitId.Value,
serviceScope.Value,
new CircuitOptions(),
clientProxy,
remoteRenderer,
descriptors ?? new List <ComponentDescriptor>(),
jsRuntime,
navigationManager,
handlers,
NullLogger <CircuitHost> .Instance));
}
public static async ValueTask <RemoteJSDataStream> CreateRemoteJSDataStreamAsync(
RemoteJSRuntime runtime,
IJSStreamReference jsStreamReference,
long totalLength,
long signalRMaximumIncomingBytes,
TimeSpan jsInteropDefaultCallTimeout,
CancellationToken cancellationToken = default)
{
// Enforce minimum 1 kb, maximum 50 kb, SignalR message size.
// We budget 512 bytes overhead for the transfer, thus leaving at least 512 bytes for data
// transfer per chunk with a 1 kb message size.
// Additionally, to maintain interactivity, we put an upper limit of 50 kb on the message size.
var chunkSize = signalRMaximumIncomingBytes > 1024 ?
(int)Math.Min(signalRMaximumIncomingBytes, 50 * 1024) - 512 :
throw new ArgumentException($"SignalR MaximumIncomingBytes must be at least 1 kb.");
var streamId = runtime.RemoteJSDataStreamNextInstanceId++;
var remoteJSDataStream = new RemoteJSDataStream(runtime, streamId, totalLength, chunkSize, jsInteropDefaultCallTimeout, cancellationToken);
await runtime.InvokeVoidAsync("Blazor._internal.sendJSDataStream", jsStreamReference, streamId, chunkSize);
return(remoteJSDataStream);
}
private RemoteJSDataStream(
RemoteJSRuntime runtime,
long streamId,
long totalLength,
int chunkSize,
TimeSpan jsInteropDefaultCallTimeout,
CancellationToken cancellationToken)
{
_runtime = runtime;
_streamId = streamId;
_totalLength = totalLength;
_chunkSize = chunkSize;
_jsInteropDefaultCallTimeout = jsInteropDefaultCallTimeout;
_streamCancellationToken = cancellationToken;
_lastDataReceivedTime = DateTimeOffset.UtcNow;
_ = ThrowOnTimeout();
_runtime.RemoteJSDataStreamInstances.Add(_streamId, this);
_pipe = new Pipe();
_pipeReaderStream = _pipe.Reader.AsStream();
PipeReader = _pipe.Reader;
}
private TestCircuitHost(CircuitId circuitId, AsyncServiceScope scope, CircuitOptions options, CircuitClientProxy client, RemoteRenderer renderer, IReadOnlyList <ComponentDescriptor> descriptors, RemoteJSRuntime jsRuntime, RemoteNavigationManager navigationManager, CircuitHandler[] circuitHandlers, ILogger logger)
: base(circuitId, scope, options, client, renderer, descriptors, jsRuntime, navigationManager, circuitHandlers, logger)
{
}
