diff --git a/src/Components/Server/src/Circuits/CircuitHost.cs b/src/Components/Server/src/Circuits/CircuitHost.cs index d2b1ba9eeb8c..b6743eee4866 100644 --- a/src/Components/Server/src/Circuits/CircuitHost.cs +++ b/src/Components/Server/src/Circuits/CircuitHost.cs @@ -2,6 +2,7 @@ // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. using System; +using System.Buffers; using System.Collections.Generic; using System.Globalization; using System.Security.Claims; @@ -67,8 +68,11 @@ public CircuitHost( Circuit = new Circuit(this); Handle = new CircuitHandle() { CircuitHost = this, }; - Renderer.UnhandledException += Renderer_UnhandledException; + // 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; } public CircuitHandle Handle { get; } @@ -415,6 +419,31 @@ await Renderer.Dispatcher.InvokeAsync(() => } } + // ReceiveJSDataChunk is used in a fire-and-forget context, so it's responsible for its own + // error handling. + internal async Task ReceiveJSDataChunk(long streamId, long chunkId, byte[] chunk, string error) + { + AssertInitialized(); + AssertNotDisposed(); + + try + { + return await Renderer.Dispatcher.InvokeAsync(() => + { + return RemoteJSDataStream.ReceiveData(JSRuntime, streamId, chunkId, chunk, error); + }); + } + catch (Exception ex) + { + // An error completing JS interop means that the user sent invalid data, a well-behaved + // client won't do this. + Log.ReceiveJSDataChunkException(_logger, streamId, ex); + await TryNotifyClientErrorAsync(Client, GetClientErrorMessage(ex, "Invalid chunk supplied to stream.")); + UnhandledException?.Invoke(this, new UnhandledExceptionEventArgs(ex, isTerminating: false)); + return false; + } + } + // DispatchEvent is used in a fire-and-forget context, so it's responsible for its own // error handling. public async Task DispatchEvent(string eventDescriptorJson, string eventArgsJson) @@ -548,9 +577,8 @@ private void AssertNotDisposed() } } - // An unhandled exception from the renderer is always fatal because it came from user code. // We want to notify the client if it's still connected, and then tear-down the circuit. - private async void Renderer_UnhandledException(object sender, Exception e) + private async void ReportAndInvoke_UnhandledException(object sender, Exception e) { await ReportUnhandledException(e); UnhandledException?.Invoke(this, new UnhandledExceptionEventArgs(e, isTerminating: false)); @@ -638,6 +666,7 @@ private static class Log private static readonly Action _endInvokeJSSucceeded; private static readonly Action _receiveByteArraySuccess; private static readonly Action _receiveByteArrayException; + private static readonly Action _receiveJSDataChunkException; private static readonly Action _dispatchEventFailedToParseEventData; private static readonly Action _dispatchEventFailedToDispatchEvent; private static readonly Action _locationChange; @@ -682,6 +711,7 @@ private static class EventIds public static readonly EventId OnRenderCompletedFailed = new EventId(212, "OnRenderCompletedFailed"); public static readonly EventId ReceiveByteArraySucceeded = new EventId(213, "ReceiveByteArraySucceeded"); public static readonly EventId ReceiveByteArrayException = new EventId(214, "ReceiveByteArrayException"); + public static readonly EventId ReceiveJSDataChunkException = new EventId(215, "ReceiveJSDataChunkException"); } static Log() @@ -811,6 +841,11 @@ static Log() EventIds.ReceiveByteArrayException, "The ReceiveByteArray call with id '{id}' failed."); + _receiveJSDataChunkException = LoggerMessage.Define( + LogLevel.Debug, + EventIds.ReceiveJSDataChunkException, + "The ReceiveJSDataChunk call with stream id '{streamId}' failed."); + _dispatchEventFailedToParseEventData = LoggerMessage.Define( LogLevel.Debug, EventIds.DispatchEventFailedToParseEventData, @@ -875,6 +910,7 @@ public static void CircuitHandlerFailed(ILogger logger, CircuitHandler handler, public static void EndInvokeJSSucceeded(ILogger logger, long asyncCall) => _endInvokeJSSucceeded(logger, asyncCall, null); internal static void ReceiveByteArraySuccess(ILogger logger, long id) => _receiveByteArraySuccess(logger, id, null); internal static void ReceiveByteArrayException(ILogger logger, long id, Exception ex) => _receiveByteArrayException(logger, id, ex); + internal static void ReceiveJSDataChunkException(ILogger logger, long streamId, Exception ex) => _receiveJSDataChunkException(logger, streamId, ex); public static void DispatchEventFailedToParseEventData(ILogger logger, Exception ex) => _dispatchEventFailedToParseEventData(logger, ex); public static void DispatchEventFailedToDispatchEvent(ILogger logger, string eventHandlerId, Exception ex) => _dispatchEventFailedToDispatchEvent(logger, eventHandlerId ?? "", ex); diff --git a/src/Components/Server/src/Circuits/RemoteJSDataStream.cs b/src/Components/Server/src/Circuits/RemoteJSDataStream.cs new file mode 100644 index 000000000000..807f18402401 --- /dev/null +++ b/src/Components/Server/src/Circuits/RemoteJSDataStream.cs @@ -0,0 +1,224 @@ +// Copyright (c) .NET Foundation. All rights reserved. +// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. + +using System; +using System.IO; +using System.IO.Pipelines; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.JSInterop; + +namespace Microsoft.AspNetCore.Components.Server.Circuits +{ + internal sealed class RemoteJSDataStream : Stream + { + private readonly RemoteJSRuntime _runtime; + private readonly long _streamId; + private readonly long _totalLength; + private readonly TimeSpan _jsInteropDefaultCallTimeout; + private readonly CancellationToken _streamCancellationToken; + private readonly Stream _pipeReaderStream; + private readonly Pipe _pipe; + private long _bytesRead; + private long _expectedChunkId; + private DateTimeOffset _lastDataReceivedTime; + private bool _disposed; + + public static async Task 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); + } + + public static async ValueTask CreateRemoteJSDataStreamAsync( + RemoteJSRuntime runtime, + IJSStreamReference jsStreamReference, + long totalLength, + long maxBufferSize, + long maximumIncomingBytes, + 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 = maximumIncomingBytes > 1024 ? + Math.Min(maximumIncomingBytes, 50*1024) - 512 : + throw new ArgumentException($"SignalR MaximumIncomingBytes must be at least 1 kb."); + + var streamId = runtime.RemoteJSDataStreamNextInstanceId++; + var remoteJSDataStream = new RemoteJSDataStream(runtime, streamId, totalLength, maxBufferSize, jsInteropDefaultCallTimeout, cancellationToken); + await runtime.InvokeVoidAsync("Blazor._internal.sendJSDataStream", jsStreamReference, streamId, chunkSize); + return remoteJSDataStream; + } + + private RemoteJSDataStream( + RemoteJSRuntime runtime, + long streamId, + long totalLength, + long maxBufferSize, + TimeSpan jsInteropDefaultCallTimeout, + CancellationToken cancellationToken) + { + _runtime = runtime; + _streamId = streamId; + _totalLength = totalLength; + _jsInteropDefaultCallTimeout = jsInteropDefaultCallTimeout; + _streamCancellationToken = cancellationToken; + + _lastDataReceivedTime = DateTimeOffset.UtcNow; + _ = ThrowOnTimeout(); + + _runtime.RemoteJSDataStreamInstances.Add(_streamId, this); + + _pipe = new Pipe(new PipeOptions(pauseWriterThreshold: maxBufferSize, resumeWriterThreshold: maxBufferSize / 2)); + _pipeReaderStream = _pipe.Reader.AsStream(); + } + + private async Task ReceiveData(long chunkId, byte[] chunk, string error) + { + try + { + _lastDataReceivedTime = DateTimeOffset.UtcNow; + _ = ThrowOnTimeout(); + + if (!string.IsNullOrEmpty(error)) + { + throw new InvalidOperationException($"An error occurred while reading the remote stream: {error}"); + } + + if (chunkId != _expectedChunkId) + { + throw new EndOfStreamException($"Out of sequence chunk received, expected {_expectedChunkId}, but received {chunkId}."); + } + + ++_expectedChunkId; + + if (chunk.Length == 0) + { + throw new EndOfStreamException($"The incoming data chunk cannot be empty."); + } + + _bytesRead += chunk.Length; + + if (_bytesRead > _totalLength) + { + throw new EndOfStreamException($"The incoming data stream declared a length {_totalLength}, but {_bytesRead} bytes were sent."); + } + + await _pipe.Writer.WriteAsync(chunk, _streamCancellationToken); + + if (_bytesRead == _totalLength) + { + await CompletePipeAndDisposeStream(); + } + + return true; + } + catch (Exception e) + { + await CompletePipeAndDisposeStream(e); + + // Fatal exception, crush the circuit. A well behaved client + // should not result in this type of exception. + if (e is EndOfStreamException) + { + throw; + } + + return false; + } + } + + public override bool CanRead => true; + + public override bool CanSeek => false; + + public override bool CanWrite => false; + + public override long Length => _totalLength; + + public override long Position + { + get => _pipeReaderStream.Position; + set => throw new NotSupportedException(); + } + + public override void Flush() + => throw new NotSupportedException(); + + public override int Read(byte[] buffer, int offset, int count) + => throw new NotSupportedException("Synchronous reads are not supported."); + + public override long Seek(long offset, SeekOrigin origin) + => throw new NotSupportedException(); + + public override void SetLength(long value) + => throw new NotSupportedException(); + + public override void Write(byte[] buffer, int offset, int count) + => throw new NotSupportedException(); + + public override async Task ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken) + { + var linkedCancellationToken = GetLinkedCancellationToken(_streamCancellationToken, cancellationToken); + return await _pipeReaderStream.ReadAsync(buffer.AsMemory(offset, count), linkedCancellationToken); + } + + public override async ValueTask ReadAsync(Memory buffer, CancellationToken cancellationToken = default) + { + var linkedCancellationToken = GetLinkedCancellationToken(_streamCancellationToken, cancellationToken); + return await _pipeReaderStream.ReadAsync(buffer, linkedCancellationToken); + } + + private static CancellationToken GetLinkedCancellationToken(CancellationToken a, CancellationToken b) + { + if (a.CanBeCanceled && b.CanBeCanceled) + { + return CancellationTokenSource.CreateLinkedTokenSource(a, b).Token; + } + else if (a.CanBeCanceled) + { + return a; + } + + return b; + } + + private async Task ThrowOnTimeout() + { + await Task.Delay(_jsInteropDefaultCallTimeout); + + if (!_disposed && (DateTimeOffset.UtcNow >= _lastDataReceivedTime.Add(_jsInteropDefaultCallTimeout))) + { + // Dispose of the stream if a chunk isn't received within the jsInteropDefaultCallTimeout. + var timeoutException = new TimeoutException("Did not receive any data in the alloted time."); + await CompletePipeAndDisposeStream(timeoutException); + _runtime.RaiseUnhandledException(timeoutException); + } + } + + internal async Task CompletePipeAndDisposeStream(Exception? ex = null) + { + await _pipe.Writer.CompleteAsync(ex); + Dispose(true); + } + + protected override void Dispose(bool disposing) + { + if (disposing) + { + _runtime.RemoteJSDataStreamInstances.Remove(_streamId); + } + + _disposed = true; + } + } +} diff --git a/src/Components/Server/src/Circuits/RemoteJSRuntime.cs b/src/Components/Server/src/Circuits/RemoteJSRuntime.cs index 6d7e51557f74..757359f1f926 100644 --- a/src/Components/Server/src/Circuits/RemoteJSRuntime.cs +++ b/src/Components/Server/src/Circuits/RemoteJSRuntime.cs @@ -2,7 +2,11 @@ // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. using System; +using System.Collections.Generic; +using System.IO; using System.Text.Json; +using System.Threading; +using System.Threading.Tasks; using Microsoft.AspNetCore.SignalR; using Microsoft.Extensions.Logging; using Microsoft.Extensions.Options; @@ -20,10 +24,18 @@ internal class RemoteJSRuntime : JSRuntime private readonly long _maximumIncomingBytes; private int _byteArraysToBeRevivedTotalBytes; + internal int RemoteJSDataStreamNextInstanceId; + internal readonly Dictionary RemoteJSDataStreamInstances = new(); + public ElementReferenceContext ElementReferenceContext { get; } public bool IsInitialized => _clientProxy is not null; + /// + /// Notifies when a runtime exception occurred. + /// + public event EventHandler? UnhandledException; + public RemoteJSRuntime( IOptions circuitOptions, IOptions hubOptions, @@ -46,6 +58,11 @@ internal void Initialize(CircuitClientProxy clientProxy) _clientProxy = clientProxy ?? throw new ArgumentNullException(nameof(clientProxy)); } + internal void RaiseUnhandledException(Exception ex) + { + UnhandledException?.Invoke(this, ex); + } + protected override void EndInvokeDotNet(DotNetInvocationInfo invocationInfo, in DotNetInvocationResult invocationResult) { if (!invocationResult.Success) @@ -140,6 +157,9 @@ public void MarkPermanentlyDisconnected() _clientProxy = null; } + protected override async Task ReadJSDataAsStreamAsync(IJSStreamReference jsStreamReference, long totalLength, long maxBufferSize, CancellationToken cancellationToken) + => await RemoteJSDataStream.CreateRemoteJSDataStreamAsync(this, jsStreamReference, totalLength, maxBufferSize, _maximumIncomingBytes, _options.JSInteropDefaultCallTimeout, cancellationToken); + public static class Log { private static readonly Action _beginInvokeJS = @@ -198,7 +218,6 @@ internal static void InvokeDotNetMethodSuccess(ILogger logger, { _invokeInstanceDotNetMethodSuccess(logger, invocationInfo.MethodIdentifier, invocationInfo.DotNetObjectId, invocationInfo.CallId, null); } - } } } diff --git a/src/Components/Server/src/ComponentHub.cs b/src/Components/Server/src/ComponentHub.cs index 9887345da19d..2bca9c1dd9df 100644 --- a/src/Components/Server/src/ComponentHub.cs +++ b/src/Components/Server/src/ComponentHub.cs @@ -2,6 +2,7 @@ // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. using System; +using System.Buffers; using System.Runtime.CompilerServices; using System.Threading.Tasks; using Microsoft.AspNetCore.Components.Server.Circuits; @@ -36,7 +37,7 @@ namespace Microsoft.AspNetCore.Components.Server // in error cases. internal sealed class ComponentHub : Hub { - private static readonly object CircuitKey = new object(); + private static readonly object CircuitKey = new(); private readonly IServerComponentDeserializer _serverComponentSerializer; private readonly IDataProtectionProvider _dataProtectionProvider; private readonly ICircuitFactory _circuitFactory; @@ -220,7 +221,23 @@ public async ValueTask ReceiveByteArray(int id, byte[] data) return; } - await circuitHost.ReceiveByteArray(id, data); + _ = circuitHost.ReceiveByteArray(id, data); + } + + public async ValueTask ReceiveJSDataChunk(long streamId, long chunkId, byte[] chunk, string error) + { + var circuitHost = await GetActiveCircuitAsync(); + if (circuitHost == null) + { + return false; + } + + // Note: this await will block the circuit. This is intentional. + // The call into the circuitHost.ReceiveJSDataChunk will block regardless as we call into Renderer.Dispatcher.InvokeAsync + // which ensures we're running on the main circuit thread so that the server/client remain in the same + // synchronization context. Additionally, we're utilizing the return value as a heartbeat for the transfer + // process, and without it would likely need to setup a separate endpoint to handle that functionality. + return await circuitHost.ReceiveJSDataChunk(streamId, chunkId, chunk, error); } public async ValueTask DispatchBrowserEvent(string eventDescriptor, string eventArgs) diff --git a/src/Components/Server/test/Circuits/RemoteJSDataStreamTest.cs b/src/Components/Server/test/Circuits/RemoteJSDataStreamTest.cs new file mode 100644 index 000000000000..14dcf3eec46c --- /dev/null +++ b/src/Components/Server/test/Circuits/RemoteJSDataStreamTest.cs @@ -0,0 +1,180 @@ +// Copyright (c) .NET Foundation. All rights reserved. +// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. + +using System; +using System.IO; +using System.Linq; +using System.Threading.Tasks; +using Microsoft.AspNetCore.SignalR; +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Options; +using Microsoft.JSInterop; +using Moq; +using Xunit; + +namespace Microsoft.AspNetCore.Components.Server.Circuits +{ + public class RemoteJSDataStreamTest + { + private static readonly TestRemoteJSRuntime _jsRuntime = new(Options.Create(new CircuitOptions()), Options.Create(new HubOptions()), Mock.Of>()); + + [Fact] + public async void CreateRemoteJSDataStreamAsync_CreatesStream() + { + // Arrange + var jsStreamReference = Mock.Of(); + + // Act + var remoteJSDataStream = await RemoteJSDataStream.CreateRemoteJSDataStreamAsync(_jsRuntime, jsStreamReference, totalLength: 100, maxBufferSize: 50, maximumIncomingBytes: 10_000, jsInteropDefaultCallTimeout: TimeSpan.FromMinutes(1)); + + // Assert + Assert.NotNull(remoteJSDataStream); + } + + [Fact] + public async void ReceiveData_DoesNotFindStream() + { + // Arrange + var chunk = new byte[] { 3, 5, 6, 7 }; + var unrecognizedGuid = 10; + + // Act + var success = await RemoteJSDataStream.ReceiveData(_jsRuntime, streamId: unrecognizedGuid, chunkId: 0, chunk, error: null); + + // Assert + Assert.False(success); + } + + [Fact] + public async void ReceiveData_SuccessReadsBackStream() + { + // Arrange + var jsRuntime = new TestRemoteJSRuntime(Options.Create(new CircuitOptions()), Options.Create(new HubOptions()), Mock.Of>()); + var remoteJSDataStream = await CreateRemoteJSDataStreamAsync(jsRuntime); + var streamId = GetStreamId(remoteJSDataStream, jsRuntime); + var chunk = new byte[100]; + var random = new Random(); + random.NextBytes(chunk); + + var sendDataTask = Task.Run(async () => + { + // Act 1 + var success = await RemoteJSDataStream.ReceiveData(jsRuntime, streamId, chunkId: 0, chunk, error: null); + return success; + }); + + // Act & Assert 2 + using var memoryStream = new MemoryStream(); + await remoteJSDataStream.CopyToAsync(memoryStream); + Assert.Equal(chunk, memoryStream.ToArray()); + + // Act & Assert 3 + var sendDataCompleted = await sendDataTask; + Assert.True(sendDataCompleted); + } + + [Fact] + public async void ReceiveData_WithError() + { + // Arrange + var jsRuntime = new TestRemoteJSRuntime(Options.Create(new CircuitOptions()), Options.Create(new HubOptions()), Mock.Of>()); + var remoteJSDataStream = await CreateRemoteJSDataStreamAsync(jsRuntime); + var streamId = GetStreamId(remoteJSDataStream, jsRuntime); + + // Act & Assert 1 + var success = await RemoteJSDataStream.ReceiveData(jsRuntime, streamId, chunkId: 0, chunk: null, error: "some error"); + Assert.False(success); + + // Act & Assert 2 + using var mem = new MemoryStream(); + var ex = await Assert.ThrowsAsync(async () => await remoteJSDataStream.CopyToAsync(mem)); + Assert.Equal("An error occurred while reading the remote stream: some error", ex.Message); + } + + [Fact] + public async void ReceiveData_WithZeroLengthChunk() + { + // Arrange + var jsRuntime = new TestRemoteJSRuntime(Options.Create(new CircuitOptions()), Options.Create(new HubOptions()), Mock.Of>()); + var remoteJSDataStream = await CreateRemoteJSDataStreamAsync(jsRuntime); + var streamId = GetStreamId(remoteJSDataStream, jsRuntime); + var chunk = Array.Empty(); + + // Act & Assert 1 + var ex = await Assert.ThrowsAsync(async () => await RemoteJSDataStream.ReceiveData(jsRuntime, streamId, chunkId: 0, chunk, error: null)); + Assert.Equal("The incoming data chunk cannot be empty.", ex.Message); + + // Act & Assert 2 + using var mem = new MemoryStream(); + ex = await Assert.ThrowsAsync(async () => await remoteJSDataStream.CopyToAsync(mem)); + Assert.Equal("The incoming data chunk cannot be empty.", ex.Message); + } + + [Fact] + public async void ReceiveData_ProvidedWithMoreBytesThanRemaining() + { + // Arrange + var jsRuntime = new TestRemoteJSRuntime(Options.Create(new CircuitOptions()), Options.Create(new HubOptions()), Mock.Of>()); + var jsStreamReference = Mock.Of(); + var remoteJSDataStream = await RemoteJSDataStream.CreateRemoteJSDataStreamAsync(jsRuntime, jsStreamReference, totalLength: 100, maxBufferSize: 50, maximumIncomingBytes: 10_000, jsInteropDefaultCallTimeout: TimeSpan.FromMinutes(1)); + var streamId = GetStreamId(remoteJSDataStream, jsRuntime); + var chunk = new byte[110]; // 100 byte totalLength for stream + + // Act & Assert 1 + var ex = await Assert.ThrowsAsync(async () => await RemoteJSDataStream.ReceiveData(jsRuntime, streamId, chunkId: 0, chunk, error: null)); + Assert.Equal("The incoming data stream declared a length 100, but 110 bytes were sent.", ex.Message); + + // Act & Assert 2 + using var mem = new MemoryStream(); + ex = await Assert.ThrowsAsync(async () => await remoteJSDataStream.CopyToAsync(mem)); + Assert.Equal("The incoming data stream declared a length 100, but 110 bytes were sent.", ex.Message); + } + + [Fact] + public async void ReceiveData_ProvidedWithOutOfOrderChunk_SimulatesSignalRDisconnect() + { + // Arrange + var jsRuntime = new TestRemoteJSRuntime(Options.Create(new CircuitOptions()), Options.Create(new HubOptions()), Mock.Of>()); + var jsStreamReference = Mock.Of(); + var remoteJSDataStream = await RemoteJSDataStream.CreateRemoteJSDataStreamAsync(jsRuntime, jsStreamReference, totalLength: 100, maxBufferSize: 50, maximumIncomingBytes: 10_000, jsInteropDefaultCallTimeout: TimeSpan.FromMinutes(1)); + var streamId = GetStreamId(remoteJSDataStream, jsRuntime); + var chunk = new byte[5]; + + // Act & Assert 1 + for (var i = 0; i < 5; i++) + { + await RemoteJSDataStream.ReceiveData(jsRuntime, streamId, chunkId: i, chunk, error: null); + } + var ex = await Assert.ThrowsAsync(async () => await RemoteJSDataStream.ReceiveData(jsRuntime, streamId, chunkId: 7, chunk, error: null)); + Assert.Equal("Out of sequence chunk received, expected 5, but received 7.", ex.Message); + + // Act & Assert 2 + using var mem = new MemoryStream(); + ex = await Assert.ThrowsAsync(async () => await remoteJSDataStream.CopyToAsync(mem)); + Assert.Equal("Out of sequence chunk received, expected 5, but received 7.", ex.Message); + } + + private static async Task CreateRemoteJSDataStreamAsync(TestRemoteJSRuntime jsRuntime = null) + { + var jsStreamReference = Mock.Of(); + var remoteJSDataStream = await RemoteJSDataStream.CreateRemoteJSDataStreamAsync(jsRuntime ?? _jsRuntime, jsStreamReference, totalLength: 100, maxBufferSize: 50, maximumIncomingBytes: 10_000, jsInteropDefaultCallTimeout: TimeSpan.FromMinutes(1)); + return remoteJSDataStream; + } + + private static long GetStreamId(RemoteJSDataStream stream, RemoteJSRuntime runtime) => + runtime.RemoteJSDataStreamInstances.FirstOrDefault(kvp => kvp.Value == stream).Key; + + class TestRemoteJSRuntime : RemoteJSRuntime, IJSRuntime + { + public TestRemoteJSRuntime(IOptions circuitOptions, IOptions hubOptions, ILogger logger) : base(circuitOptions, hubOptions, logger) + { + } + + public new ValueTask InvokeAsync(string identifier, object[] args) + { + Assert.Equal("Blazor._internal.sendJSDataStream", identifier); + return ValueTask.FromResult(default); + } + } + } +} diff --git a/src/Components/Web.JS/dist/Release/blazor.server.js b/src/Components/Web.JS/dist/Release/blazor.server.js index 215b8cb31037..654969b2ea1a 100644 --- a/src/Components/Web.JS/dist/Release/blazor.server.js +++ b/src/Components/Web.JS/dist/Release/blazor.server.js @@ -1 +1 @@ -(()=>{"use strict";var e,t,n;!function(e){window.DotNet=e;const t=[],n=new Map;class r{constructor(e){this._jsObject=e,this._cachedFunctions=new Map}findFunction(e){const t=this._cachedFunctions.get(e);if(t)return t;let n,r=this._jsObject;if(e.split(".").forEach((t=>{if(!(t in r))throw new Error(`Could not find '${e}' ('${t}' was undefined).`);n=r,r=r[t]})),r instanceof Function)return r=r.bind(n),this._cachedFunctions.set(e,r),r;throw new Error(`The value '${e}' is not a function.`)}getWrappedObject(){return this._jsObject}}const o="__jsObjectId",i={},s={0:new r(window)};s[0]._cachedFunctions.set("import",(e=>("string"==typeof e&&e.startsWith("./")&&(e=document.baseURI+e.substr(2)),import(e))));let a,c=1,l=1,h=null;function u(e){t.push(e)}function d(e){if(e&&"object"==typeof e){s[l]=new r(e);const t={[o]:l};return l++,t}throw new Error(`Cannot create a JSObjectReference from the value '${e}'.`)}function p(e){return e?JSON.parse(e,((e,n)=>t.reduce(((t,n)=>n(e,t)),n))):null}function f(e,t,n,r){const o=m();if(o.invokeDotNetFromJS){const i=I(r),s=o.invokeDotNetFromJS(e,t,n,i);return s?p(s):null}throw new Error("The current dispatcher does not support synchronous calls from JS to .NET. 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Error("No method defined."))}}class Re extends _e{constructor(e){if(super(),"undefined"!=typeof fetch)this._httpClient=new Te(e);else{if("undefined"==typeof XMLHttpRequest)throw new Error("No usable HttpClient found.");this._httpClient=new De(e)}}send(e){return e.abortSignal&&e.abortSignal.aborted?Promise.reject(new ve):e.method?e.url?this._httpClient.send(e):Promise.reject(new Error("No url defined.")):Promise.reject(new Error("No method defined."))}getCookieString(e){return this._httpClient.getCookieString(e)}}class Pe{}Pe.Authorization="Authorization",Pe.Cookie="Cookie",function(e){e[e.None=0]="None",e[e.WebSockets=1]="WebSockets",e[e.ServerSentEvents=2]="ServerSentEvents",e[e.LongPolling=4]="LongPolling"}(Se||(Se={})),function(e){e[e.Text=1]="Text",e[e.Binary=2]="Binary"}(Ce||(Ce={}));class Ue{constructor(){this._isAborted=!1,this.onabort=null}abort(){this._isAborted||(this._isAborted=!0,this.onabort&&this.onabort())}get signal(){return this}get aborted(){return this._isAborted}}class Ae{constructor(){}log(e,t){}}Ae.instance=new Ae;class Ne{static isRequired(e,t){if(null==e)throw new Error(`The '${t}' argument is required.`)}static isNotEmpty(e,t){if(!e||e.match(/^\s*$/))throw new Error(`The '${t}' argument should not be empty.`)}static isIn(e,t,n){if(!(e in t))throw new Error(`Unknown ${n} value: ${e}.`)}}class Be{static get isBrowser(){return"object"==typeof window}static get isWebWorker(){return"object"==typeof self&&"importScripts"in self}static get isNode(){return!this.isBrowser&&!this.isWebWorker}}function $e(e,t){let n="";return Me(e)?(n=`Binary data of length ${e.byteLength}`,t&&(n+=`. Content: '${function(e){const t=new Uint8Array(e);let n="";return t.forEach((e=>{n+=`0x${e<16?"0":""}${e.toString(16)} `})),n.substr(0,n.length-1)}(e)}'`)):"string"==typeof e&&(n=`String data of length ${e.length}`,t&&(n+=`. Content: '${e}'`)),n}function Me(e){return e&&"undefined"!=typeof ArrayBuffer&&(e instanceof ArrayBuffer||e.constructor&&"ArrayBuffer"===e.constructor.name)}async function Le(e,t,n,r,o,i,s,a,c){let l={};if(o){const e=await o();e&&(l={Authorization:`Bearer ${e}`})}const[h,u]=Oe();l[h]=u,e.log(Ee.Trace,`(${t} transport) sending data. ${$e(i,s)}.`);const d=Me(i)?"arraybuffer":"text",p=await n.post(r,{content:i,headers:{...l,...c},responseType:d,withCredentials:a});e.log(Ee.Trace,`(${t} transport) request complete. Response status: ${p.statusCode}.`)}class Fe{constructor(e,t){this._subject=e,this._observer=t}dispose(){const e=this._subject.observers.indexOf(this._observer);e>-1&&this._subject.observers.splice(e,1),0===this._subject.observers.length&&this._subject.cancelCallback&&this._subject.cancelCallback().catch((e=>{}))}}class He{constructor(e){this._minLevel=e,this.out=console}log(e,t){if(e>=this._minLevel){const n=`[${(new Date).toISOString()}] ${Ee[e]}: ${t}`;switch(e){case Ee.Critical:case Ee.Error:this.out.error(n);break;case Ee.Warning:this.out.warn(n);break;case Ee.Information:this.out.info(n);break;default:this.out.log(n)}}}}function Oe(){let e="X-SignalR-User-Agent";return Be.isNode&&(e="User-Agent"),[e,je("0.0.0-DEV_BUILD",We(),Be.isNode?"NodeJS":"Browser",ze())]}function je(e,t,n,r){let o="Microsoft SignalR/";const i=e.split(".");return o+=`${i[0]}.${i[1]}`,o+=` (${e}; `,o+=t&&""!==t?`${t}; `:"Unknown OS; ",o+=`${n}`,o+=r?`; ${r}`:"; Unknown Runtime Version",o+=")",o}function We(){if(!Be.isNode)return"";switch(process.platform){case"win32":return"Windows NT";case"darwin":return"macOS";case"linux":return"Linux";default:return process.platform}}function ze(){if(Be.isNode)return process.versions.node}class qe{constructor(e,t,n,r,o,i){this._httpClient=e,this._accessTokenFactory=t,this._logger=n,this._pollAbort=new Ue,this._logMessageContent=r,this._withCredentials=o,this._headers=i,this._running=!1,this.onreceive=null,this.onclose=null}get pollAborted(){return this._pollAbort.aborted}async connect(e,t){if(Ne.isRequired(e,"url"),Ne.isRequired(t,"transferFormat"),Ne.isIn(t,Ce,"transferFormat"),this._url=e,this._logger.log(Ee.Trace,"(LongPolling transport) Connecting."),t===Ce.Binary&&"undefined"!=typeof XMLHttpRequest&&"string"!=typeof(new XMLHttpRequest).responseType)throw new Error("Binary protocols over XmlHttpRequest not implementing advanced features are not supported.");const[n,r]=Oe(),o={[n]:r,...this._headers},i={abortSignal:this._pollAbort.signal,headers:o,timeout:1e5,withCredentials:this._withCredentials};t===Ce.Binary&&(i.responseType="arraybuffer");const s=await this._getAccessToken();this._updateHeaderToken(i,s);const a=`${e}&_=${Date.now()}`;this._logger.log(Ee.Trace,`(LongPolling transport) polling: ${a}.`);const c=await this._httpClient.get(a,i);200!==c.statusCode?(this._logger.log(Ee.Error,`(LongPolling transport) Unexpected response code: ${c.statusCode}.`),this._closeError=new ye(c.statusText||"",c.statusCode),this._running=!1):this._running=!0,this._receiving=this._poll(this._url,i)}async _getAccessToken(){return this._accessTokenFactory?await this._accessTokenFactory():null}_updateHeaderToken(e,t){e.headers||(e.headers={}),t?e.headers[Pe.Authorization]=`Bearer ${t}`:e.headers[Pe.Authorization]&&delete e.headers[Pe.Authorization]}async _poll(e,t){try{for(;this._running;){const n=await this._getAccessToken();this._updateHeaderToken(t,n);try{const n=`${e}&_=${Date.now()}`;this._logger.log(Ee.Trace,`(LongPolling transport) polling: ${n}.`);const r=await this._httpClient.get(n,t);204===r.statusCode?(this._logger.log(Ee.Information,"(LongPolling transport) Poll terminated by server."),this._running=!1):200!==r.statusCode?(this._logger.log(Ee.Error,`(LongPolling transport) Unexpected response code: ${r.statusCode}.`),this._closeError=new ye(r.statusText||"",r.statusCode),this._running=!1):r.content?(this._logger.log(Ee.Trace,`(LongPolling transport) data received. ${$e(r.content,this._logMessageContent)}.`),this.onreceive&&this.onreceive(r.content)):this._logger.log(Ee.Trace,"(LongPolling transport) Poll timed out, reissuing.")}catch(e){this._running?e instanceof we?this._logger.log(Ee.Trace,"(LongPolling transport) Poll timed out, reissuing."):(this._closeError=e,this._running=!1):this._logger.log(Ee.Trace,`(LongPolling transport) Poll errored after shutdown: ${e.message}`)}}}finally{this._logger.log(Ee.Trace,"(LongPolling transport) Polling complete."),this.pollAborted||this._raiseOnClose()}}async send(e){return this._running?Le(this._logger,"LongPolling",this._httpClient,this._url,this._accessTokenFactory,e,this._logMessageContent,this._withCredentials,this._headers):Promise.reject(new Error("Cannot send until the transport is connected"))}async stop(){this._logger.log(Ee.Trace,"(LongPolling transport) Stopping polling."),this._running=!1,this._pollAbort.abort();try{await this._receiving,this._logger.log(Ee.Trace,`(LongPolling transport) sending DELETE request to ${this._url}.`);const e={},[t,n]=Oe();e[t]=n;const r={headers:{...e,...this._headers},withCredentials:this._withCredentials},o=await this._getAccessToken();this._updateHeaderToken(r,o),await this._httpClient.delete(this._url,r),this._logger.log(Ee.Trace,"(LongPolling transport) DELETE request sent.")}finally{this._logger.log(Ee.Trace,"(LongPolling transport) Stop finished."),this._raiseOnClose()}}_raiseOnClose(){if(this.onclose){let e="(LongPolling transport) Firing onclose event.";this._closeError&&(e+=" Error: "+this._closeError),this._logger.log(Ee.Trace,e),this.onclose(this._closeError)}}}class Je{constructor(e,t,n,r,o,i,s){this._httpClient=e,this._accessTokenFactory=t,this._logger=n,this._logMessageContent=r,this._withCredentials=i,this._eventSourceConstructor=o,this._headers=s,this.onreceive=null,this.onclose=null}async connect(e,t){if(Ne.isRequired(e,"url"),Ne.isRequired(t,"transferFormat"),Ne.isIn(t,Ce,"transferFormat"),this._logger.log(Ee.Trace,"(SSE transport) Connecting."),this._url=e,this._accessTokenFactory){const t=await this._accessTokenFactory();t&&(e+=(e.indexOf("?")<0?"?":"&")+`access_token=${encodeURIComponent(t)}`)}return new Promise(((n,r)=>{let o,i=!1;if(t===Ce.Text){if(Be.isBrowser||Be.isWebWorker)o=new this._eventSourceConstructor(e,{withCredentials:this._withCredentials});else{const t=this._httpClient.getCookieString(e),n={};n.Cookie=t;const[r,i]=Oe();n[r]=i,o=new this._eventSourceConstructor(e,{withCredentials:this._withCredentials,headers:{...n,...this._headers}})}try{o.onmessage=e=>{if(this.onreceive)try{this._logger.log(Ee.Trace,`(SSE transport) data received. ${$e(e.data,this._logMessageContent)}.`),this.onreceive(e.data)}catch(e){return void this._close(e)}},o.onerror=e=>{i?this._close():r(new Error("EventSource failed to connect. The connection could not be found on the server, either the connection ID is not present on the server, or a proxy is refusing/buffering the connection. If you have multiple servers check that sticky sessions are enabled."))},o.onopen=()=>{this._logger.log(Ee.Information,`SSE connected to ${this._url}`),this._eventSource=o,i=!0,n()}}catch(e){return void r(e)}}else r(new Error("The Server-Sent Events transport only supports the 'Text' transfer format"))}))}async send(e){return this._eventSource?Le(this._logger,"SSE",this._httpClient,this._url,this._accessTokenFactory,e,this._logMessageContent,this._withCredentials,this._headers):Promise.reject(new Error("Cannot send until the transport is connected"))}stop(){return this._close(),Promise.resolve()}_close(e){this._eventSource&&(this._eventSource.close(),this._eventSource=void 0,this.onclose&&this.onclose(e))}}class Ke{constructor(e,t,n,r,o,i){this._logger=n,this._accessTokenFactory=t,this._logMessageContent=r,this._webSocketConstructor=o,this._httpClient=e,this.onreceive=null,this.onclose=null,this._headers=i}async connect(e,t){if(Ne.isRequired(e,"url"),Ne.isRequired(t,"transferFormat"),Ne.isIn(t,Ce,"transferFormat"),this._logger.log(Ee.Trace,"(WebSockets transport) Connecting."),this._accessTokenFactory){const t=await this._accessTokenFactory();t&&(e+=(e.indexOf("?")<0?"?":"&")+`access_token=${encodeURIComponent(t)}`)}return new Promise(((n,r)=>{let o;e=e.replace(/^http/,"ws"),this._httpClient.getCookieString(e);let i=!1;o||(o=new this._webSocketConstructor(e)),t===Ce.Binary&&(o.binaryType="arraybuffer"),o.onopen=t=>{this._logger.log(Ee.Information,`WebSocket connected to ${e}.`),this._webSocket=o,i=!0,n()},o.onerror=e=>{let t=null;t="undefined"!=typeof ErrorEvent&&e instanceof ErrorEvent?e.error:"There was an error with the transport",this._logger.log(Ee.Information,`(WebSockets transport) ${t}.`)},o.onmessage=e=>{if(this._logger.log(Ee.Trace,`(WebSockets transport) data received. ${$e(e.data,this._logMessageContent)}.`),this.onreceive)try{this.onreceive(e.data)}catch(e){return void this._close(e)}},o.onclose=e=>{if(i)this._close(e);else{let t=null;t="undefined"!=typeof ErrorEvent&&e instanceof ErrorEvent?e.error:"WebSocket failed to connect. The connection could not be found on the server, either the endpoint may not be a SignalR endpoint, the connection ID is not present on the server, or there is a proxy blocking WebSockets. If you have multiple servers check that sticky sessions are enabled.",r(new Error(t))}}}))}send(e){return this._webSocket&&this._webSocket.readyState===this._webSocketConstructor.OPEN?(this._logger.log(Ee.Trace,`(WebSockets transport) sending data. ${$e(e,this._logMessageContent)}.`),this._webSocket.send(e),Promise.resolve()):Promise.reject("WebSocket is not in the OPEN state")}stop(){return this._webSocket&&this._close(void 0),Promise.resolve()}_close(e){this._webSocket&&(this._webSocket.onclose=()=>{},this._webSocket.onmessage=()=>{},this._webSocket.onerror=()=>{},this._webSocket.close(),this._webSocket=void 0),this._logger.log(Ee.Trace,"(WebSockets transport) socket closed."),this.onclose&&(!this._isCloseEvent(e)||!1!==e.wasClean&&1e3===e.code?e instanceof Error?this.onclose(e):this.onclose():this.onclose(new Error(`WebSocket closed with status code: ${e.code} (${e.reason||"no reason given"}).`)))}_isCloseEvent(e){return e&&"boolean"==typeof e.wasClean&&"number"==typeof e.code}}class Ve{constructor(e,t={}){var n;if(this._stopPromiseResolver=()=>{},this.features={},this._negotiateVersion=1,Ne.isRequired(e,"url"),this._logger=void 0===(n=t.logger)?new He(Ee.Information):null===n?Ae.instance:void 0!==n.log?n:new He(n),this.baseUrl=this._resolveUrl(e),(t=t||{}).logMessageContent=void 0!==t.logMessageContent&&t.logMessageContent,"boolean"!=typeof t.withCredentials&&void 0!==t.withCredentials)throw new Error("withCredentials option was not a 'boolean' or 'undefined' value");t.withCredentials=void 0===t.withCredentials||t.withCredentials,"undefined"==typeof WebSocket||t.WebSocket||(t.WebSocket=WebSocket),"undefined"==typeof EventSource||t.EventSource||(t.EventSource=EventSource),this._httpClient=t.httpClient||new Re(this._logger),this._connectionState="Disconnected",this._connectionStarted=!1,this._options=t,this.onreceive=null,this.onclose=null}async start(e){if(e=e||Ce.Binary,Ne.isIn(e,Ce,"transferFormat"),this._logger.log(Ee.Debug,`Starting connection with transfer format '${Ce[e]}'.`),"Disconnected"!==this._connectionState)return Promise.reject(new Error("Cannot start an HttpConnection that is not in the 'Disconnected' state."));if(this._connectionState="Connecting",this._startInternalPromise=this._startInternal(e),await this._startInternalPromise,"Disconnecting"===this._connectionState){const e="Failed to start the HttpConnection before stop() was called.";return this._logger.log(Ee.Error,e),await this._stopPromise,Promise.reject(new Error(e))}if("Connected"!==this._connectionState){const e="HttpConnection.startInternal completed gracefully but didn't enter the connection into the connected state!";return this._logger.log(Ee.Error,e),Promise.reject(new Error(e))}this._connectionStarted=!0}send(e){return"Connected"!==this._connectionState?Promise.reject(new Error("Cannot send data if the connection is not in the 'Connected' State.")):(this._sendQueue||(this._sendQueue=new Xe(this.transport)),this._sendQueue.send(e))}async stop(e){return"Disconnected"===this._connectionState?(this._logger.log(Ee.Debug,`Call to HttpConnection.stop(${e}) ignored because the connection is already in the disconnected state.`),Promise.resolve()):"Disconnecting"===this._connectionState?(this._logger.log(Ee.Debug,`Call to HttpConnection.stop(${e}) ignored because the connection is already in the disconnecting state.`),this._stopPromise):(this._connectionState="Disconnecting",this._stopPromise=new Promise((e=>{this._stopPromiseResolver=e})),await this._stopInternal(e),void await this._stopPromise)}async _stopInternal(e){this._stopError=e;try{await this._startInternalPromise}catch(e){}if(this.transport){try{await this.transport.stop()}catch(e){this._logger.log(Ee.Error,`HttpConnection.transport.stop() threw error '${e}'.`),this._stopConnection()}this.transport=void 0}else this._logger.log(Ee.Debug,"HttpConnection.transport is undefined in HttpConnection.stop() because start() failed.")}async _startInternal(e){let t=this.baseUrl;this._accessTokenFactory=this._options.accessTokenFactory;try{if(this._options.skipNegotiation){if(this._options.transport!==Se.WebSockets)throw new Error("Negotiation can only be skipped when using the WebSocket transport directly.");this.transport=this._constructTransport(Se.WebSockets),await this._startTransport(t,e)}else{let n=null,r=0;do{if(n=await this._getNegotiationResponse(t),"Disconnecting"===this._connectionState||"Disconnected"===this._connectionState)throw new Error("The connection was stopped during negotiation.");if(n.error)throw new Error(n.error);if(n.ProtocolVersion)throw new Error("Detected a connection attempt to an ASP.NET SignalR Server. This client only supports connecting to an ASP.NET Core SignalR Server. See https://aka.ms/signalr-core-differences for details.");if(n.url&&(t=n.url),n.accessToken){const e=n.accessToken;this._accessTokenFactory=()=>e}r++}while(n.url&&r<100);if(100===r&&n.url)throw new Error("Negotiate redirection limit exceeded.");await this._createTransport(t,this._options.transport,n,e)}this.transport instanceof qe&&(this.features.inherentKeepAlive=!0),"Connecting"===this._connectionState&&(this._logger.log(Ee.Debug,"The HttpConnection connected successfully."),this._connectionState="Connected")}catch(e){return this._logger.log(Ee.Error,"Failed to start the connection: "+e),this._connectionState="Disconnected",this.transport=void 0,this._stopPromiseResolver(),Promise.reject(e)}}async _getNegotiationResponse(e){const t={};if(this._accessTokenFactory){const e=await this._accessTokenFactory();e&&(t[Pe.Authorization]=`Bearer ${e}`)}const[n,r]=Oe();t[n]=r;const o=this._resolveNegotiateUrl(e);this._logger.log(Ee.Debug,`Sending negotiation request: ${o}.`);try{const e=await this._httpClient.post(o,{content:"",headers:{...t,...this._options.headers},withCredentials:this._options.withCredentials});if(200!==e.statusCode)return Promise.reject(new Error(`Unexpected status code returned from negotiate '${e.statusCode}'`));const n=JSON.parse(e.content);return(!n.negotiateVersion||n.negotiateVersion<1)&&(n.connectionToken=n.connectionId),n}catch(e){let t="Failed to complete negotiation with the server: "+e;return e instanceof ye&&404===e.statusCode&&(t+=" Either this is not a SignalR endpoint or there is a proxy blocking the connection."),this._logger.log(Ee.Error,t),Promise.reject(new Error(t))}}_createConnectUrl(e,t){return t?e+(-1===e.indexOf("?")?"?":"&")+`id=${t}`:e}async _createTransport(e,t,n,r){let o=this._createConnectUrl(e,n.connectionToken);if(this._isITransport(t))return this._logger.log(Ee.Debug,"Connection was provided an instance of ITransport, using that directly."),this.transport=t,await this._startTransport(o,r),void(this.connectionId=n.connectionId);const i=[],s=n.availableTransports||[];let a=n;for(const n of s){const s=this._resolveTransportOrError(n,t,r);if(s instanceof Error)i.push(`${n.transport} failed: ${s}`);else if(this._isITransport(s)){if(this.transport=s,!a){try{a=await this._getNegotiationResponse(e)}catch(e){return Promise.reject(e)}o=this._createConnectUrl(e,a.connectionToken)}try{return await this._startTransport(o,r),void(this.connectionId=a.connectionId)}catch(e){if(this._logger.log(Ee.Error,`Failed to start the transport '${n.transport}': ${e}`),a=void 0,i.push(`${n.transport} failed: ${e}`),"Connecting"!==this._connectionState){const e="Failed to select transport before stop() was called.";return this._logger.log(Ee.Debug,e),Promise.reject(new Error(e))}}}}return i.length>0?Promise.reject(new Error(`Unable to connect to the server with any of the available transports. ${i.join(" ")}`)):Promise.reject(new Error("None of the transports supported by the client are supported by the server."))}_constructTransport(e){switch(e){case Se.WebSockets:if(!this._options.WebSocket)throw new Error("'WebSocket' is not supported in your environment.");return new Ke(this._httpClient,this._accessTokenFactory,this._logger,this._options.logMessageContent||!1,this._options.WebSocket,this._options.headers||{});case Se.ServerSentEvents:if(!this._options.EventSource)throw new Error("'EventSource' is not supported in your environment.");return new Je(this._httpClient,this._accessTokenFactory,this._logger,this._options.logMessageContent||!1,this._options.EventSource,this._options.withCredentials,this._options.headers||{});case Se.LongPolling:return new qe(this._httpClient,this._accessTokenFactory,this._logger,this._options.logMessageContent||!1,this._options.withCredentials,this._options.headers||{});default:throw new Error(`Unknown transport: ${e}.`)}}_startTransport(e,t){return this.transport.onreceive=this.onreceive,this.transport.onclose=e=>this._stopConnection(e),this.transport.connect(e,t)}_resolveTransportOrError(e,t,n){const r=Se[e.transport];if(null==r)return this._logger.log(Ee.Debug,`Skipping transport '${e.transport}' because it is not supported by this client.`),new Error(`Skipping transport '${e.transport}' because it is not supported by this client.`);if(!function(e,t){return!e||0!=(t&e)}(t,r))return this._logger.log(Ee.Debug,`Skipping transport '${Se[r]}' because it was disabled by the client.`),new Error(`'${Se[r]}' is disabled by the client.`);if(!(e.transferFormats.map((e=>Ce[e])).indexOf(n)>=0))return this._logger.log(Ee.Debug,`Skipping transport '${Se[r]}' because it does not support the requested transfer format '${Ce[n]}'.`),new Error(`'${Se[r]}' does not support ${Ce[n]}.`);if(r===Se.WebSockets&&!this._options.WebSocket||r===Se.ServerSentEvents&&!this._options.EventSource)return this._logger.log(Ee.Debug,`Skipping transport '${Se[r]}' because it is not supported in your environment.'`),new Error(`'${Se[r]}' is not supported in your environment.`);this._logger.log(Ee.Debug,`Selecting transport '${Se[r]}'.`);try{return this._constructTransport(r)}catch(e){return e}}_isITransport(e){return e&&"object"==typeof e&&"connect"in e}_stopConnection(e){if(this._logger.log(Ee.Debug,`HttpConnection.stopConnection(${e}) called while in state ${this._connectionState}.`),this.transport=void 0,e=this._stopError||e,this._stopError=void 0,"Disconnected"!==this._connectionState){if("Connecting"===this._connectionState)throw this._logger.log(Ee.Warning,`Call to HttpConnection.stopConnection(${e}) was ignored because the connection is still in the connecting state.`),new Error(`HttpConnection.stopConnection(${e}) was called while the connection is still in the connecting state.`);if("Disconnecting"===this._connectionState&&this._stopPromiseResolver(),e?this._logger.log(Ee.Error,`Connection disconnected with error '${e}'.`):this._logger.log(Ee.Information,"Connection disconnected."),this._sendQueue&&(this._sendQueue.stop().catch((e=>{this._logger.log(Ee.Error,`TransportSendQueue.stop() threw error '${e}'.`)})),this._sendQueue=void 0),this.connectionId=void 0,this._connectionState="Disconnected",this._connectionStarted){this._connectionStarted=!1;try{this.onclose&&this.onclose(e)}catch(t){this._logger.log(Ee.Error,`HttpConnection.onclose(${e}) threw error '${t}'.`)}}}else this._logger.log(Ee.Debug,`Call to HttpConnection.stopConnection(${e}) was ignored because the connection is already in the disconnected state.`)}_resolveUrl(e){if(0===e.lastIndexOf("https://",0)||0===e.lastIndexOf("http://",0))return e;if(!Be.isBrowser||!window.document)throw new Error(`Cannot resolve '${e}'.`);const t=window.document.createElement("a");return t.href=e,this._logger.log(Ee.Information,`Normalizing '${e}' to '${t.href}'.`),t.href}_resolveNegotiateUrl(e){const t=e.indexOf("?");let n=e.substring(0,-1===t?e.length:t);return"/"!==n[n.length-1]&&(n+="/"),n+="negotiate",n+=-1===t?"":e.substring(t),-1===n.indexOf("negotiateVersion")&&(n+=-1===t?"?":"&",n+="negotiateVersion="+this._negotiateVersion),n}}class Xe{constructor(e){this._transport=e,this._buffer=[],this._executing=!0,this._sendBufferedData=new Ye,this._transportResult=new Ye,this._sendLoopPromise=this._sendLoop()}send(e){return this._bufferData(e),this._transportResult||(this._transportResult=new Ye),this._transportResult.promise}stop(){return this._executing=!1,this._sendBufferedData.resolve(),this._sendLoopPromise}_bufferData(e){if(this._buffer.length&&typeof this._buffer[0]!=typeof e)throw new Error(`Expected data to be of type ${typeof this._buffer} but was of type ${typeof e}`);this._buffer.push(e),this._sendBufferedData.resolve()}async _sendLoop(){for(;;){if(await this._sendBufferedData.promise,!this._executing){this._transportResult&&this._transportResult.reject("Connection stopped.");break}this._sendBufferedData=new Ye;const e=this._transportResult;this._transportResult=void 0;const t="string"==typeof this._buffer[0]?this._buffer.join(""):Xe._concatBuffers(this._buffer);this._buffer.length=0;try{await this._transport.send(t),e.resolve()}catch(t){e.reject(t)}}}static _concatBuffers(e){const t=e.map((e=>e.byteLength)).reduce(((e,t)=>e+t)),n=new Uint8Array(t);let r=0;for(const t of e)n.set(new Uint8Array(t),r),r+=t.byteLength;return n.buffer}}class Ye{constructor(){this.promise=new Promise(((e,t)=>[this._resolver,this._rejecter]=[e,t]))}resolve(){this._resolver()}reject(e){this._rejecter(e)}}class Ge{static write(e){return`${e}${Ge.RecordSeparator}`}static parse(e){if(e[e.length-1]!==Ge.RecordSeparator)throw new Error("Message is incomplete.");const t=e.split(Ge.RecordSeparator);return t.pop(),t}}Ge.RecordSeparatorCode=30,Ge.RecordSeparator=String.fromCharCode(Ge.RecordSeparatorCode);class Qe{writeHandshakeRequest(e){return Ge.write(JSON.stringify(e))}parseHandshakeResponse(e){let t,n;if(Me(e)){const r=new Uint8Array(e),o=r.indexOf(Ge.RecordSeparatorCode);if(-1===o)throw new Error("Message is incomplete.");const i=o+1;t=String.fromCharCode.apply(null,Array.prototype.slice.call(r.slice(0,i))),n=r.byteLength>i?r.slice(i).buffer:null}else{const r=e,o=r.indexOf(Ge.RecordSeparator);if(-1===o)throw new Error("Message is incomplete.");const i=o+1;t=r.substring(0,i),n=r.length>i?r.substring(i):null}const r=Ge.parse(t),o=JSON.parse(r[0]);if(o.type)throw new Error("Expected a handshake response from the server.");return[n,o]}}!function(e){e[e.Invocation=1]="Invocation",e[e.StreamItem=2]="StreamItem",e[e.Completion=3]="Completion",e[e.StreamInvocation=4]="StreamInvocation",e[e.CancelInvocation=5]="CancelInvocation",e[e.Ping=6]="Ping",e[e.Close=7]="Close"}(Ie||(Ie={}));class Ze{constructor(){this.observers=[]}next(e){for(const t of this.observers)t.next(e)}error(e){for(const t of this.observers)t.error&&t.error(e)}complete(){for(const e of this.observers)e.complete&&e.complete()}subscribe(e){return this.observers.push(e),new Fe(this,e)}}!function(e){e.Disconnected="Disconnected",e.Connecting="Connecting",e.Connected="Connected",e.Disconnecting="Disconnecting",e.Reconnecting="Reconnecting"}(ke||(ke={}));class et{constructor(e,t,n,r){this._nextKeepAlive=0,Ne.isRequired(e,"connection"),Ne.isRequired(t,"logger"),Ne.isRequired(n,"protocol"),this.serverTimeoutInMilliseconds=3e4,this.keepAliveIntervalInMilliseconds=15e3,this._logger=t,this._protocol=n,this.connection=e,this._reconnectPolicy=r,this._handshakeProtocol=new Qe,this.connection.onreceive=e=>this._processIncomingData(e),this.connection.onclose=e=>this._connectionClosed(e),this._callbacks={},this._methods={},this._closedCallbacks=[],this._reconnectingCallbacks=[],this._reconnectedCallbacks=[],this._invocationId=0,this._receivedHandshakeResponse=!1,this._connectionState=ke.Disconnected,this._connectionStarted=!1,this._cachedPingMessage=this._protocol.writeMessage({type:Ie.Ping})}static create(e,t,n,r){return new et(e,t,n,r)}get state(){return this._connectionState}get connectionId(){return this.connection&&this.connection.connectionId||null}get baseUrl(){return this.connection.baseUrl||""}set baseUrl(e){if(this._connectionState!==ke.Disconnected&&this._connectionState!==ke.Reconnecting)throw new Error("The HubConnection must be in the Disconnected or Reconnecting state to change the url.");if(!e)throw new Error("The HubConnection url must be a valid url.");this.connection.baseUrl=e}start(){return this._startPromise=this._startWithStateTransitions(),this._startPromise}async _startWithStateTransitions(){if(this._connectionState!==ke.Disconnected)return Promise.reject(new Error("Cannot start a HubConnection that is not in the 'Disconnected' state."));this._connectionState=ke.Connecting,this._logger.log(Ee.Debug,"Starting HubConnection.");try{await this._startInternal(),this._connectionState=ke.Connected,this._connectionStarted=!0,this._logger.log(Ee.Debug,"HubConnection connected successfully.")}catch(e){return this._connectionState=ke.Disconnected,this._logger.log(Ee.Debug,`HubConnection failed to start successfully because of error '${e}'.`),Promise.reject(e)}}async _startInternal(){this._stopDuringStartError=void 0,this._receivedHandshakeResponse=!1;const e=new Promise(((e,t)=>{this._handshakeResolver=e,this._handshakeRejecter=t}));await this.connection.start(this._protocol.transferFormat);try{const t={protocol:this._protocol.name,version:this._protocol.version};if(this._logger.log(Ee.Debug,"Sending handshake request."),await this._sendMessage(this._handshakeProtocol.writeHandshakeRequest(t)),this._logger.log(Ee.Information,`Using HubProtocol '${this._protocol.name}'.`),this._cleanupTimeout(),this._resetTimeoutPeriod(),this._resetKeepAliveInterval(),await e,this._stopDuringStartError)throw this._stopDuringStartError}catch(e){throw this._logger.log(Ee.Debug,`Hub handshake failed with error '${e}' during start(). Stopping HubConnection.`),this._cleanupTimeout(),this._cleanupPingTimer(),await this.connection.stop(e),e}}async stop(){const e=this._startPromise;this._stopPromise=this._stopInternal(),await this._stopPromise;try{await e}catch(e){}}_stopInternal(e){return this._connectionState===ke.Disconnected?(this._logger.log(Ee.Debug,`Call to HubConnection.stop(${e}) ignored because it is already in the disconnected state.`),Promise.resolve()):this._connectionState===ke.Disconnecting?(this._logger.log(Ee.Debug,`Call to HttpConnection.stop(${e}) ignored because the connection is already in the disconnecting state.`),this._stopPromise):(this._connectionState=ke.Disconnecting,this._logger.log(Ee.Debug,"Stopping HubConnection."),this._reconnectDelayHandle?(this._logger.log(Ee.Debug,"Connection stopped during reconnect delay. Done reconnecting."),clearTimeout(this._reconnectDelayHandle),this._reconnectDelayHandle=void 0,this._completeClose(),Promise.resolve()):(this._cleanupTimeout(),this._cleanupPingTimer(),this._stopDuringStartError=e||new Error("The connection was stopped before the hub handshake could complete."),this.connection.stop(e)))}stream(e,...t){const[n,r]=this._replaceStreamingParams(t),o=this._createStreamInvocation(e,t,r);let i;const s=new Ze;return s.cancelCallback=()=>{const e=this._createCancelInvocation(o.invocationId);return delete this._callbacks[o.invocationId],i.then((()=>this._sendWithProtocol(e)))},this._callbacks[o.invocationId]=(e,t)=>{t?s.error(t):e&&(e.type===Ie.Completion?e.error?s.error(new Error(e.error)):s.complete():s.next(e.item))},i=this._sendWithProtocol(o).catch((e=>{s.error(e),delete this._callbacks[o.invocationId]})),this._launchStreams(n,i),s}_sendMessage(e){return this._resetKeepAliveInterval(),this.connection.send(e)}_sendWithProtocol(e){return this._sendMessage(this._protocol.writeMessage(e))}send(e,...t){const[n,r]=this._replaceStreamingParams(t),o=this._sendWithProtocol(this._createInvocation(e,t,!0,r));return this._launchStreams(n,o),o}invoke(e,...t){const[n,r]=this._replaceStreamingParams(t),o=this._createInvocation(e,t,!1,r);return new Promise(((e,t)=>{this._callbacks[o.invocationId]=(n,r)=>{r?t(r):n&&(n.type===Ie.Completion?n.error?t(new Error(n.error)):e(n.result):t(new Error(`Unexpected message type: ${n.type}`)))};const r=this._sendWithProtocol(o).catch((e=>{t(e),delete this._callbacks[o.invocationId]}));this._launchStreams(n,r)}))}on(e,t){e&&t&&(e=e.toLowerCase(),this._methods[e]||(this._methods[e]=[]),-1===this._methods[e].indexOf(t)&&this._methods[e].push(t))}off(e,t){if(!e)return;e=e.toLowerCase();const n=this._methods[e];if(n)if(t){const r=n.indexOf(t);-1!==r&&(n.splice(r,1),0===n.length&&delete this._methods[e])}else delete this._methods[e]}onclose(e){e&&this._closedCallbacks.push(e)}onreconnecting(e){e&&this._reconnectingCallbacks.push(e)}onreconnected(e){e&&this._reconnectedCallbacks.push(e)}_processIncomingData(e){if(this._cleanupTimeout(),this._receivedHandshakeResponse||(e=this._processHandshakeResponse(e),this._receivedHandshakeResponse=!0),e){const t=this._protocol.parseMessages(e,this._logger);for(const e of t)switch(e.type){case Ie.Invocation:this._invokeClientMethod(e);break;case Ie.StreamItem:case Ie.Completion:{const t=this._callbacks[e.invocationId];t&&(e.type===Ie.Completion&&delete this._callbacks[e.invocationId],t(e));break}case Ie.Ping:break;case Ie.Close:{this._logger.log(Ee.Information,"Close message received from server.");const t=e.error?new Error("Server returned an error on close: "+e.error):void 0;!0===e.allowReconnect?this.connection.stop(t):this._stopPromise=this._stopInternal(t);break}default:this._logger.log(Ee.Warning,`Invalid message type: ${e.type}.`)}}this._resetTimeoutPeriod()}_processHandshakeResponse(e){let t,n;try{[n,t]=this._handshakeProtocol.parseHandshakeResponse(e)}catch(e){const t="Error parsing handshake response: "+e;this._logger.log(Ee.Error,t);const n=new Error(t);throw this._handshakeRejecter(n),n}if(t.error){const e="Server returned handshake error: "+t.error;this._logger.log(Ee.Error,e);const n=new Error(e);throw this._handshakeRejecter(n),n}return this._logger.log(Ee.Debug,"Server handshake complete."),this._handshakeResolver(),n}_resetKeepAliveInterval(){this.connection.features.inherentKeepAlive||(this._nextKeepAlive=(new Date).getTime()+this.keepAliveIntervalInMilliseconds,this._cleanupPingTimer())}_resetTimeoutPeriod(){if(!(this.connection.features&&this.connection.features.inherentKeepAlive||(this._timeoutHandle=setTimeout((()=>this.serverTimeout()),this.serverTimeoutInMilliseconds),void 0!==this._pingServerHandle))){let e=this._nextKeepAlive-(new Date).getTime();e<0&&(e=0),this._pingServerHandle=setTimeout((async()=>{if(this._connectionState===ke.Connected)try{await this._sendMessage(this._cachedPingMessage)}catch{this._cleanupPingTimer()}}),e)}}serverTimeout(){this.connection.stop(new Error("Server timeout elapsed without receiving a message from the server."))}_invokeClientMethod(e){const t=this._methods[e.target.toLowerCase()];if(t){try{t.forEach((t=>t.apply(this,e.arguments)))}catch(t){this._logger.log(Ee.Error,`A callback for the method ${e.target.toLowerCase()} threw error '${t}'.`)}if(e.invocationId){const e="Server requested a response, which is not supported in this version of the client.";this._logger.log(Ee.Error,e),this._stopPromise=this._stopInternal(new Error(e))}}else this._logger.log(Ee.Warning,`No client method with the name '${e.target}' found.`)}_connectionClosed(e){this._logger.log(Ee.Debug,`HubConnection.connectionClosed(${e}) called while in state ${this._connectionState}.`),this._stopDuringStartError=this._stopDuringStartError||e||new Error("The underlying connection was closed before the hub handshake could complete."),this._handshakeResolver&&this._handshakeResolver(),this._cancelCallbacksWithError(e||new Error("Invocation canceled due to the underlying connection being closed.")),this._cleanupTimeout(),this._cleanupPingTimer(),this._connectionState===ke.Disconnecting?this._completeClose(e):this._connectionState===ke.Connected&&this._reconnectPolicy?this._reconnect(e):this._connectionState===ke.Connected&&this._completeClose(e)}_completeClose(e){if(this._connectionStarted){this._connectionState=ke.Disconnected,this._connectionStarted=!1;try{this._closedCallbacks.forEach((t=>t.apply(this,[e])))}catch(t){this._logger.log(Ee.Error,`An onclose callback called with error '${e}' threw error '${t}'.`)}}}async _reconnect(e){const t=Date.now();let n=0,r=void 0!==e?e:new Error("Attempting to reconnect due to a unknown error."),o=this._getNextRetryDelay(n++,0,r);if(null===o)return this._logger.log(Ee.Debug,"Connection not reconnecting because the IRetryPolicy returned null on the first reconnect attempt."),void this._completeClose(e);if(this._connectionState=ke.Reconnecting,e?this._logger.log(Ee.Information,`Connection reconnecting because of error '${e}'.`):this._logger.log(Ee.Information,"Connection reconnecting."),0!==this._reconnectingCallbacks.length){try{this._reconnectingCallbacks.forEach((t=>t.apply(this,[e])))}catch(t){this._logger.log(Ee.Error,`An onreconnecting callback called with error '${e}' threw error '${t}'.`)}if(this._connectionState!==ke.Reconnecting)return void this._logger.log(Ee.Debug,"Connection left the reconnecting state in onreconnecting callback. Done reconnecting.")}for(;null!==o;){if(this._logger.log(Ee.Information,`Reconnect attempt number ${n} will start in ${o} ms.`),await new Promise((e=>{this._reconnectDelayHandle=setTimeout(e,o)})),this._reconnectDelayHandle=void 0,this._connectionState!==ke.Reconnecting)return void this._logger.log(Ee.Debug,"Connection left the reconnecting state during reconnect delay. Done reconnecting.");try{if(await this._startInternal(),this._connectionState=ke.Connected,this._logger.log(Ee.Information,"HubConnection reconnected successfully."),0!==this._reconnectedCallbacks.length)try{this._reconnectedCallbacks.forEach((e=>e.apply(this,[this.connection.connectionId])))}catch(e){this._logger.log(Ee.Error,`An onreconnected callback called with connectionId '${this.connection.connectionId}; threw error '${e}'.`)}return}catch(e){if(this._logger.log(Ee.Information,`Reconnect attempt failed because of error '${e}'.`),this._connectionState!==ke.Reconnecting)return this._logger.log(Ee.Debug,`Connection moved to the '${this._connectionState}' from the reconnecting state during reconnect attempt. Done reconnecting.`),void(this._connectionState===ke.Disconnecting&&this._completeClose());r=e instanceof Error?e:new Error(e.toString()),o=this._getNextRetryDelay(n++,Date.now()-t,r)}}this._logger.log(Ee.Information,`Reconnect retries have been exhausted after ${Date.now()-t} ms and ${n} failed attempts. Connection disconnecting.`),this._completeClose()}_getNextRetryDelay(e,t,n){try{return this._reconnectPolicy.nextRetryDelayInMilliseconds({elapsedMilliseconds:t,previousRetryCount:e,retryReason:n})}catch(n){return this._logger.log(Ee.Error,`IRetryPolicy.nextRetryDelayInMilliseconds(${e}, ${t}) threw error '${n}'.`),null}}_cancelCallbacksWithError(e){const t=this._callbacks;this._callbacks={},Object.keys(t).forEach((n=>{(0,t[n])(null,e)}))}_cleanupPingTimer(){this._pingServerHandle&&(clearTimeout(this._pingServerHandle),this._pingServerHandle=void 0)}_cleanupTimeout(){this._timeoutHandle&&clearTimeout(this._timeoutHandle)}_createInvocation(e,t,n,r){if(n)return 0!==r.length?{arguments:t,streamIds:r,target:e,type:Ie.Invocation}:{arguments:t,target:e,type:Ie.Invocation};{const n=this._invocationId;return 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h(e,t){e(t),i.shift(),i.length&&a(i[0][0],i[0][1])}},xt=new DataView(new ArrayBuffer(0)),Dt=new Uint8Array(xt.buffer),Rt=function(){try{xt.getInt8(0)}catch(e){return e.constructor}throw new Error("never reached")}(),Pt=new Rt("Insufficient data"),Ut=4294967295,At=new Et,Nt=function(e){function t(n){var r=e.call(this,n)||this,o=Object.create(t.prototype);return Object.setPrototypeOf(r,o),Object.defineProperty(r,"name",{configurable:!0,enumerable:!1,value:t.name}),r}return St(t,e),t}(Error),Bt=function(){function e(e,t,n,r,o,i,s,a){void 0===e&&(e=yt.defaultCodec),void 0===t&&(t=void 0),void 0===n&&(n=Ut),void 0===r&&(r=Ut),void 0===o&&(o=Ut),void 0===i&&(i=Ut),void 0===s&&(s=Ut),void 0===a&&(a=At),this.extensionCodec=e,this.context=t,this.maxStrLength=n,this.maxBinLength=r,this.maxArrayLength=o,this.maxMapLength=i,this.maxExtLength=s,this.keyDecoder=a,this.totalPos=0,this.pos=0,this.view=xt,this.bytes=Dt,this.headByte=-1,this.stack=[]}return e.prototype.reinitializeState=function(){this.totalPos=0,this.headByte=-1,this.stack.length=0},e.prototype.setBuffer=function(e){this.bytes=wt(e),this.view=function(e){if(e instanceof ArrayBuffer)return new DataView(e);var t=wt(e);return new DataView(t.buffer,t.byteOffset,t.byteLength)}(this.bytes),this.pos=0},e.prototype.appendBuffer=function(e){if(-1!==this.headByte||this.hasRemaining()){var t=this.bytes.subarray(this.pos),n=wt(e),r=new Uint8Array(t.length+n.length);r.set(t),r.set(n,t.length),this.setBuffer(r)}else this.setBuffer(e)},e.prototype.hasRemaining=function(e){return void 0===e&&(e=1),this.view.byteLength-this.pos>=e},e.prototype.createExtraByteError=function(e){var t=this.view,n=this.pos;return new RangeError("Extra "+(t.byteLength-n)+" of "+t.byteLength+" byte(s) found at buffer["+e+"]")},e.prototype.decode=function(e){this.reinitializeState(),this.setBuffer(e);var t=this.doDecodeSync();if(this.hasRemaining())throw this.createExtraByteError(this.pos);return t},e.prototype.decodeMulti=function(e){return Ct(this,(function(t){switch(t.label){case 0:this.reinitializeState(),this.setBuffer(e),t.label=1;case 1:return this.hasRemaining()?[4,this.doDecodeSync()]:[3,3];case 2:return t.sent(),[3,1];case 3:return[2]}}))},e.prototype.decodeAsync=function(e){var t,n,r,o,i,s,a;return i=this,void 0,a=function(){var i,s,a,c,l,h,u,d;return Ct(this,(function(p){switch(p.label){case 0:i=!1,p.label=1;case 1:p.trys.push([1,6,7,12]),t=It(e),p.label=2;case 2:return[4,t.next()];case 3:if((n=p.sent()).done)return[3,5];if(a=n.value,i)throw this.createExtraByteError(this.totalPos);this.appendBuffer(a);try{s=this.doDecodeSync(),i=!0}catch(e){if(!(e instanceof Rt))throw e}this.totalPos+=this.pos,p.label=4;case 4:return[3,2];case 5:return[3,12];case 6:return c=p.sent(),r={error:c},[3,12];case 7:return p.trys.push([7,,10,11]),n&&!n.done&&(o=t.return)?[4,o.call(t)]:[3,9];case 8:p.sent(),p.label=9;case 9:return[3,11];case 10:if(r)throw r.error;return[7];case 11:return[7];case 12:if(i){if(this.hasRemaining())throw this.createExtraByteError(this.totalPos);return[2,s]}throw h=(l=this).headByte,u=l.pos,d=l.totalPos,new RangeError("Insufficient data in parsing "+bt(h)+" at "+d+" ("+u+" in the current buffer)")}}))},new((s=void 0)||(s=Promise))((function(e,t){function n(e){try{o(a.next(e))}catch(e){t(e)}}function r(e){try{o(a.throw(e))}catch(e){t(e)}}function o(t){var o;t.done?e(t.value):(o=t.value,o instanceof s?o:new s((function(e){e(o)}))).then(n,r)}o((a=a.apply(i,[])).next())}))},e.prototype.decodeArrayStream=function(e){return this.decodeMultiAsync(e,!0)},e.prototype.decodeStream=function(e){return this.decodeMultiAsync(e,!1)},e.prototype.decodeMultiAsync=function(e,t){return Tt(this,arguments,(function(){var n,r,o,i,s,a,c,l,h;return Ct(this,(function(u){switch(u.label){case 0:n=t,r=-1,u.label=1;case 1:u.trys.push([1,13,14,19]),o=It(e),u.label=2;case 2:return[4,kt(o.next())];case 3:if((i=u.sent()).done)return[3,12];if(s=i.value,t&&0===r)throw this.createExtraByteError(this.totalPos);this.appendBuffer(s),n&&(r=this.readArraySize(),n=!1,this.complete()),u.label=4;case 4:u.trys.push([4,9,,10]),u.label=5;case 5:return[4,kt(this.doDecodeSync())];case 6:return[4,u.sent()];case 7:return u.sent(),0==--r?[3,8]:[3,5];case 8:return[3,10];case 9:if(!((a=u.sent())instanceof Rt))throw a;return[3,10];case 10:this.totalPos+=this.pos,u.label=11;case 11:return[3,2];case 12:return[3,19];case 13:return c=u.sent(),l={error:c},[3,19];case 14:return u.trys.push([14,,17,18]),i&&!i.done&&(h=o.return)?[4,kt(h.call(o))]:[3,16];case 15:u.sent(),u.label=16;case 16:return[3,18];case 17:if(l)throw l.error;return[7];case 18:return[7];case 19:return[2]}}))}))},e.prototype.doDecodeSync=function(){e:for(;;){var e=this.readHeadByte(),t=void 0;if(e>=224)t=e-256;else if(e<192)if(e<128)t=e;else if(e<144){if(0!=(r=e-128)){this.pushMapState(r),this.complete();continue e}t={}}else if(e<160){if(0!=(r=e-144)){this.pushArrayState(r),this.complete();continue e}t=[]}else{var n=e-160;t=this.decodeUtf8String(n,0)}else if(192===e)t=null;else if(194===e)t=!1;else if(195===e)t=!0;else if(202===e)t=this.readF32();else if(203===e)t=this.readF64();else if(204===e)t=this.readU8();else if(205===e)t=this.readU16();else if(206===e)t=this.readU32();else if(207===e)t=this.readU64();else if(208===e)t=this.readI8();else if(209===e)t=this.readI16();else if(210===e)t=this.readI32();else if(211===e)t=this.readI64();else if(217===e)n=this.lookU8(),t=this.decodeUtf8String(n,1);else if(218===e)n=this.lookU16(),t=this.decodeUtf8String(n,2);else if(219===e)n=this.lookU32(),t=this.decodeUtf8String(n,4);else if(220===e){if(0!==(r=this.readU16())){this.pushArrayState(r),this.complete();continue e}t=[]}else if(221===e){if(0!==(r=this.readU32())){this.pushArrayState(r),this.complete();continue e}t=[]}else if(222===e){if(0!==(r=this.readU16())){this.pushMapState(r),this.complete();continue e}t={}}else if(223===e){if(0!==(r=this.readU32())){this.pushMapState(r),this.complete();continue e}t={}}else if(196===e){var r=this.lookU8();t=this.decodeBinary(r,1)}else if(197===e)r=this.lookU16(),t=this.decodeBinary(r,2);else if(198===e)r=this.lookU32(),t=this.decodeBinary(r,4);else if(212===e)t=this.decodeExtension(1,0);else if(213===e)t=this.decodeExtension(2,0);else if(214===e)t=this.decodeExtension(4,0);else if(215===e)t=this.decodeExtension(8,0);else if(216===e)t=this.decodeExtension(16,0);else if(199===e)r=this.lookU8(),t=this.decodeExtension(r,1);else if(200===e)r=this.lookU16(),t=this.decodeExtension(r,2);else{if(201!==e)throw new Nt("Unrecognized type byte: "+bt(e));r=this.lookU32(),t=this.decodeExtension(r,4)}this.complete();for(var o=this.stack;o.length>0;){var i=o[o.length-1];if(0===i.type){if(i.array[i.position]=t,i.position++,i.position!==i.size)continue e;o.pop(),t=i.array}else{if(1===i.type){if("string"!=(s=typeof t)&&"number"!==s)throw new Nt("The type of key must be string or number but "+typeof t);if("__proto__"===t)throw new Nt("The key __proto__ is not allowed");i.key=t,i.type=2;continue e}if(i.map[i.key]=t,i.readCount++,i.readCount!==i.size){i.key=null,i.type=1;continue e}o.pop(),t=i.map}}return t}var s},e.prototype.readHeadByte=function(){return-1===this.headByte&&(this.headByte=this.readU8()),this.headByte},e.prototype.complete=function(){this.headByte=-1},e.prototype.readArraySize=function(){var e=this.readHeadByte();switch(e){case 220:return this.readU16();case 221:return this.readU32();default:if(e<160)return e-144;throw new Nt("Unrecognized array type byte: "+bt(e))}},e.prototype.pushMapState=function(e){if(e>this.maxMapLength)throw new Nt("Max length exceeded: map length ("+e+") > maxMapLengthLength ("+this.maxMapLength+")");this.stack.push({type:1,size:e,key:null,readCount:0,map:{}})},e.prototype.pushArrayState=function(e){if(e>this.maxArrayLength)throw new Nt("Max length exceeded: array length ("+e+") > maxArrayLength ("+this.maxArrayLength+")");this.stack.push({type:0,size:e,array:new Array(e),position:0})},e.prototype.decodeUtf8String=function(e,t){var n;if(e>this.maxStrLength)throw new Nt("Max length exceeded: UTF-8 byte length ("+e+") > maxStrLength ("+this.maxStrLength+")");if(this.bytes.byteLengthdt?function(e,t,n){var r=e.subarray(t,t+n);return ut.decode(r)}(this.bytes,o,e):ht(this.bytes,o,e),this.pos+=t+e,r},e.prototype.stateIsMapKey=function(){return this.stack.length>0&&1===this.stack[this.stack.length-1].type},e.prototype.decodeBinary=function(e,t){if(e>this.maxBinLength)throw new Nt("Max length exceeded: bin length ("+e+") > maxBinLength ("+this.maxBinLength+")");if(!this.hasRemaining(e+t))throw Pt;var n=this.pos+t,r=this.bytes.subarray(n,n+e);return this.pos+=t+e,r},e.prototype.decodeExtension=function(e,t){if(e>this.maxExtLength)throw new Nt("Max length exceeded: ext length ("+e+") > maxExtLength ("+this.maxExtLength+")");var n=this.view.getInt8(this.pos+t),r=this.decodeBinary(e,t+1);return this.extensionCodec.decode(r,n,this.context)},e.prototype.lookU8=function(){return this.view.getUint8(this.pos)},e.prototype.lookU16=function(){return this.view.getUint16(this.pos)},e.prototype.lookU32=function(){return this.view.getUint32(this.pos)},e.prototype.readU8=function(){var e=this.view.getUint8(this.pos);return this.pos++,e},e.prototype.readI8=function(){var e=this.view.getInt8(this.pos);return this.pos++,e},e.prototype.readU16=function(){var e=this.view.getUint16(this.pos);return this.pos+=2,e},e.prototype.readI16=function(){var e=this.view.getInt16(this.pos);return this.pos+=2,e},e.prototype.readU32=function(){var e=this.view.getUint32(this.pos);return this.pos+=4,e},e.prototype.readI32=function(){var e=this.view.getInt32(this.pos);return this.pos+=4,e},e.prototype.readU64=function(){var e,t,n=(e=this.view,t=this.pos,4294967296*e.getUint32(t)+e.getUint32(t+4));return this.pos+=8,n},e.prototype.readI64=function(){var e=gt(this.view,this.pos);return this.pos+=8,e},e.prototype.readF32=function(){var e=this.view.getFloat32(this.pos);return this.pos+=4,e},e.prototype.readF64=function(){var e=this.view.getFloat64(this.pos);return this.pos+=8,e},e}();class $t{static write(e){let t=e.byteLength||e.length;const n=[];do{let e=127&t;t>>=7,t>0&&(e|=128),n.push(e)}while(t>0);t=e.byteLength||e.length;const r=new Uint8Array(n.length+t);return r.set(n,0),r.set(e,n.length),r.buffer}static parse(e){const t=[],n=new Uint8Array(e),r=[0,7,14,21,28];for(let o=0;o7)throw new Error("Messages bigger than 2GB are not supported.");if(!(n.byteLength>=o+s+a))throw new Error("Incomplete message.");t.push(n.slice?n.slice(o+s,o+s+a):n.subarray(o+s,o+s+a)),o=o+s+a}return t}}const Mt=new Uint8Array([145,Ie.Ping]);class Lt{constructor(e){this.name="messagepack",this.version=1,this.transferFormat=Ce.Binary,this._errorResult=1,this._voidResult=2,this._nonVoidResult=3,e=e||{},this._encoder=new vt(e.extensionCodec,e.context,e.maxDepth,e.initialBufferSize,e.sortKeys,e.forceFloat32,e.ignoreUndefined,e.forceIntegerToFloat),this._decoder=new Bt(e.extensionCodec,e.context,e.maxStrLength,e.maxBinLength,e.maxArrayLength,e.maxMapLength,e.maxExtLength)}parseMessages(e,t){if(!(n=e)||"undefined"==typeof ArrayBuffer||!(n instanceof ArrayBuffer||n.constructor&&"ArrayBuffer"===n.constructor.name))throw new Error("Invalid input for MessagePack hub protocol. Expected an ArrayBuffer.");var n;null===t&&(t=Ae.instance);const r=$t.parse(e),o=[];for(const e of r){const n=this._parseMessage(e,t);n&&o.push(n)}return o}writeMessage(e){switch(e.type){case Ie.Invocation:return this._writeInvocation(e);case Ie.StreamInvocation:return this._writeStreamInvocation(e);case Ie.StreamItem:return this._writeStreamItem(e);case Ie.Completion:return this._writeCompletion(e);case Ie.Ping:return $t.write(Mt);case Ie.CancelInvocation:return this._writeCancelInvocation(e);default:throw new Error("Invalid message type.")}}_parseMessage(e,t){if(0===e.length)throw new Error("Invalid payload.");const n=this._decoder.decode(e);if(0===n.length||!(n instanceof Array))throw new Error("Invalid payload.");const r=n[0];switch(r){case Ie.Invocation:return this._createInvocationMessage(this._readHeaders(n),n);case Ie.StreamItem:return this._createStreamItemMessage(this._readHeaders(n),n);case Ie.Completion:return this._createCompletionMessage(this._readHeaders(n),n);case Ie.Ping:return this._createPingMessage(n);case Ie.Close:return this._createCloseMessage(n);default:return t.log(Ee.Information,"Unknown message type '"+r+"' ignored."),null}}_createCloseMessage(e){if(e.length<2)throw new Error("Invalid payload for Close message.");return{allowReconnect:e.length>=3?e[2]:void 0,error:e[1],type:Ie.Close}}_createPingMessage(e){if(e.length<1)throw new Error("Invalid payload for Ping message.");return{type:Ie.Ping}}_createInvocationMessage(e,t){if(t.length<5)throw new Error("Invalid payload for Invocation message.");const n=t[2];return n?{arguments:t[4],headers:e,invocationId:n,streamIds:[],target:t[3],type:Ie.Invocation}:{arguments:t[4],headers:e,streamIds:[],target:t[3],type:Ie.Invocation}}_createStreamItemMessage(e,t){if(t.length<4)throw new Error("Invalid payload for StreamItem message.");return{headers:e,invocationId:t[2],item:t[3],type:Ie.StreamItem}}_createCompletionMessage(e,t){if(t.length<4)throw new Error("Invalid payload for Completion message.");const n=t[3];if(n!==this._voidResult&&t.length<5)throw new Error("Invalid payload for Completion message.");let r,o;switch(n){case this._errorResult:r=t[4];break;case this._nonVoidResult:o=t[4]}return{error:r,headers:e,invocationId:t[2],result:o,type:Ie.Completion}}_writeInvocation(e){let t;return t=e.streamIds?this._encoder.encode([Ie.Invocation,e.headers||{},e.invocationId||null,e.target,e.arguments,e.streamIds]):this._encoder.encode([Ie.Invocation,e.headers||{},e.invocationId||null,e.target,e.arguments]),$t.write(t.slice())}_writeStreamInvocation(e){let t;return t=e.streamIds?this._encoder.encode([Ie.StreamInvocation,e.headers||{},e.invocationId,e.target,e.arguments,e.streamIds]):this._encoder.encode([Ie.StreamInvocation,e.headers||{},e.invocationId,e.target,e.arguments]),$t.write(t.slice())}_writeStreamItem(e){const t=this._encoder.encode([Ie.StreamItem,e.headers||{},e.invocationId,e.item]);return $t.write(t.slice())}_writeCompletion(e){const t=e.error?this._errorResult:e.result?this._nonVoidResult:this._voidResult;let n;switch(t){case this._errorResult:n=this._encoder.encode([Ie.Completion,e.headers||{},e.invocationId,t,e.error]);break;case this._voidResult:n=this._encoder.encode([Ie.Completion,e.headers||{},e.invocationId,t]);break;case this._nonVoidResult:n=this._encoder.encode([Ie.Completion,e.headers||{},e.invocationId,t,e.result])}return $t.write(n.slice())}_writeCancelInvocation(e){const t=this._encoder.encode([Ie.CancelInvocation,e.headers||{},e.invocationId]);return $t.write(t.slice())}_readHeaders(e){const t=e[1];if("object"!=typeof t)throw new Error("Invalid headers.");return t}}let Ft=!1;const Ht="function"==typeof TextDecoder?new TextDecoder("utf-8"):null,Ot=Ht?Ht.decode.bind(Ht):function(e){let t=0;const n=e.length,r=[],o=[];for(;t65535&&(o-=65536,r.push(o>>>10&1023|55296),o=56320|1023&o),r.push(o)}r.length>1024&&(o.push(String.fromCharCode.apply(null,r)),r.length=0)}return o.push(String.fromCharCode.apply(null,r)),o.join("")},jt=Math.pow(2,32),Wt=Math.pow(2,21)-1;function zt(e,t){return e[t]|e[t+1]<<8|e[t+2]<<16|e[t+3]<<24}function qt(e,t){return e[t]+(e[t+1]<<8)+(e[t+2]<<16)+(e[t+3]<<24>>>0)}function Jt(e,t){const n=qt(e,t+4);if(n>Wt)throw new Error(`Cannot read uint64 with high order part ${n}, because the result would exceed Number.MAX_SAFE_INTEGER.`);return n*jt+qt(e,t)}class Kt{constructor(e){this.batchData=e;const t=new Gt(e);this.arrayRangeReader=new Qt(e),this.arrayBuilderSegmentReader=new Zt(e),this.diffReader=new Vt(e),this.editReader=new Xt(e,t),this.frameReader=new Yt(e,t)}updatedComponents(){return zt(this.batchData,this.batchData.length-20)}referenceFrames(){return zt(this.batchData,this.batchData.length-16)}disposedComponentIds(){return zt(this.batchData,this.batchData.length-12)}disposedEventHandlerIds(){return zt(this.batchData,this.batchData.length-8)}updatedComponentsEntry(e,t){const n=e+4*t;return zt(this.batchData,n)}referenceFramesEntry(e,t){return e+20*t}disposedComponentIdsEntry(e,t){const n=e+4*t;return zt(this.batchData,n)}disposedEventHandlerIdsEntry(e,t){const n=e+8*t;return Jt(this.batchData,n)}}class Vt{constructor(e){this.batchDataUint8=e}componentId(e){return zt(this.batchDataUint8,e)}edits(e){return e+4}editsEntry(e,t){return e+16*t}}class Xt{constructor(e,t){this.batchDataUint8=e,this.stringReader=t}editType(e){return zt(this.batchDataUint8,e)}siblingIndex(e){return zt(this.batchDataUint8,e+4)}newTreeIndex(e){return zt(this.batchDataUint8,e+8)}moveToSiblingIndex(e){return zt(this.batchDataUint8,e+8)}removedAttributeName(e){const t=zt(this.batchDataUint8,e+12);return this.stringReader.readString(t)}}class Yt{constructor(e,t){this.batchDataUint8=e,this.stringReader=t}frameType(e){return zt(this.batchDataUint8,e)}subtreeLength(e){return zt(this.batchDataUint8,e+4)}elementReferenceCaptureId(e){const t=zt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}componentId(e){return zt(this.batchDataUint8,e+8)}elementName(e){const t=zt(this.batchDataUint8,e+8);return this.stringReader.readString(t)}textContent(e){const t=zt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}markupContent(e){const t=zt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}attributeName(e){const t=zt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}attributeValue(e){const t=zt(this.batchDataUint8,e+8);return this.stringReader.readString(t)}attributeEventHandlerId(e){return Jt(this.batchDataUint8,e+12)}}class Gt{constructor(e){this.batchDataUint8=e,this.stringTableStartIndex=zt(e,e.length-4)}readString(e){if(-1===e)return null;{const n=zt(this.batchDataUint8,this.stringTableStartIndex+4*e),r=function(e,t){let n=0,r=0;for(let o=0;o<4;o++){const i=e[t+o];if(n|=(127&i)<this.nextBatchId)return this.fatalError?(this.logger.log(en.Debug,`Received a new batch ${e} but errored out on a previous batch 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Alternatively, reload

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Try reloading the page if you're unable to reconnect.",this.message.querySelector("a").addEventListener("click",(()=>location.reload()))}rejected(){this.button.style.display="none",this.reloadParagraph.style.display="none",this.loader.style.display="none",this.message.innerHTML="Could not reconnect to the server. 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${e.message}`)}}}finally{this._logger.log(Ee.Trace,"(LongPolling transport) Polling complete."),this.pollAborted||this._raiseOnClose()}}async send(e){return this._running?Me(this._logger,"LongPolling",this._httpClient,this._url,this._accessTokenFactory,e,this._logMessageContent,this._withCredentials,this._headers):Promise.reject(new Error("Cannot send until the transport is connected"))}async stop(){this._logger.log(Ee.Trace,"(LongPolling transport) Stopping polling."),this._running=!1,this._pollAbort.abort();try{await this._receiving,this._logger.log(Ee.Trace,`(LongPolling transport) sending DELETE request to ${this._url}.`);const e={},[t,n]=He();e[t]=n;const r={headers:{...e,...this._headers},withCredentials:this._withCredentials},o=await this._getAccessToken();this._updateHeaderToken(r,o),await this._httpClient.delete(this._url,r),this._logger.log(Ee.Trace,"(LongPolling transport) DELETE request sent.")}finally{this._logger.log(Ee.Trace,"(LongPolling transport) Stop finished."),this._raiseOnClose()}}_raiseOnClose(){if(this.onclose){let e="(LongPolling transport) Firing onclose event.";this._closeError&&(e+=" Error: "+this._closeError),this._logger.log(Ee.Trace,e),this.onclose(this._closeError)}}}class Je{constructor(e,t,n,r,o,i,s){this._httpClient=e,this._accessTokenFactory=t,this._logger=n,this._logMessageContent=r,this._withCredentials=i,this._eventSourceConstructor=o,this._headers=s,this.onreceive=null,this.onclose=null}async connect(e,t){if(Ne.isRequired(e,"url"),Ne.isRequired(t,"transferFormat"),Ne.isIn(t,Ce,"transferFormat"),this._logger.log(Ee.Trace,"(SSE transport) Connecting."),this._url=e,this._accessTokenFactory){const t=await this._accessTokenFactory();t&&(e+=(e.indexOf("?")<0?"?":"&")+`access_token=${encodeURIComponent(t)}`)}return new Promise(((n,r)=>{let o,i=!1;if(t===Ce.Text){if(Be.isBrowser||Be.isWebWorker)o=new this._eventSourceConstructor(e,{withCredentials:this._withCredentials});else{const t=this._httpClient.getCookieString(e),n={};n.Cookie=t;const[r,i]=He();n[r]=i,o=new this._eventSourceConstructor(e,{withCredentials:this._withCredentials,headers:{...n,...this._headers}})}try{o.onmessage=e=>{if(this.onreceive)try{this._logger.log(Ee.Trace,`(SSE transport) data received. ${$e(e.data,this._logMessageContent)}.`),this.onreceive(e.data)}catch(e){return void this._close(e)}},o.onerror=e=>{i?this._close():r(new Error("EventSource failed to connect. The connection could not be found on the server, either the connection ID is not present on the server, or a proxy is refusing/buffering the connection. If you have multiple servers check that sticky sessions are enabled."))},o.onopen=()=>{this._logger.log(Ee.Information,`SSE connected to ${this._url}`),this._eventSource=o,i=!0,n()}}catch(e){return void r(e)}}else r(new Error("The Server-Sent Events transport only supports the 'Text' transfer format"))}))}async send(e){return this._eventSource?Me(this._logger,"SSE",this._httpClient,this._url,this._accessTokenFactory,e,this._logMessageContent,this._withCredentials,this._headers):Promise.reject(new Error("Cannot send until the transport is connected"))}stop(){return this._close(),Promise.resolve()}_close(e){this._eventSource&&(this._eventSource.close(),this._eventSource=void 0,this.onclose&&this.onclose(e))}}class Ke{constructor(e,t,n,r,o,i){this._logger=n,this._accessTokenFactory=t,this._logMessageContent=r,this._webSocketConstructor=o,this._httpClient=e,this.onreceive=null,this.onclose=null,this._headers=i}async connect(e,t){if(Ne.isRequired(e,"url"),Ne.isRequired(t,"transferFormat"),Ne.isIn(t,Ce,"transferFormat"),this._logger.log(Ee.Trace,"(WebSockets transport) Connecting."),this._accessTokenFactory){const t=await this._accessTokenFactory();t&&(e+=(e.indexOf("?")<0?"?":"&")+`access_token=${encodeURIComponent(t)}`)}return new Promise(((n,r)=>{let o;e=e.replace(/^http/,"ws"),this._httpClient.getCookieString(e);let i=!1;o||(o=new this._webSocketConstructor(e)),t===Ce.Binary&&(o.binaryType="arraybuffer"),o.onopen=t=>{this._logger.log(Ee.Information,`WebSocket connected to ${e}.`),this._webSocket=o,i=!0,n()},o.onerror=e=>{let t=null;t="undefined"!=typeof ErrorEvent&&e instanceof ErrorEvent?e.error:"There was an error with the transport",this._logger.log(Ee.Information,`(WebSockets transport) ${t}.`)},o.onmessage=e=>{if(this._logger.log(Ee.Trace,`(WebSockets transport) data received. ${$e(e.data,this._logMessageContent)}.`),this.onreceive)try{this.onreceive(e.data)}catch(e){return void this._close(e)}},o.onclose=e=>{if(i)this._close(e);else{let t=null;t="undefined"!=typeof ErrorEvent&&e instanceof ErrorEvent?e.error:"WebSocket failed to connect. The connection could not be found on the server, either the endpoint may not be a SignalR endpoint, the connection ID is not present on the server, or there is a proxy blocking WebSockets. If you have multiple servers check that sticky sessions are enabled.",r(new Error(t))}}}))}send(e){return this._webSocket&&this._webSocket.readyState===this._webSocketConstructor.OPEN?(this._logger.log(Ee.Trace,`(WebSockets transport) sending data. ${$e(e,this._logMessageContent)}.`),this._webSocket.send(e),Promise.resolve()):Promise.reject("WebSocket is not in the OPEN state")}stop(){return this._webSocket&&this._close(void 0),Promise.resolve()}_close(e){this._webSocket&&(this._webSocket.onclose=()=>{},this._webSocket.onmessage=()=>{},this._webSocket.onerror=()=>{},this._webSocket.close(),this._webSocket=void 0),this._logger.log(Ee.Trace,"(WebSockets transport) socket closed."),this.onclose&&(!this._isCloseEvent(e)||!1!==e.wasClean&&1e3===e.code?e instanceof Error?this.onclose(e):this.onclose():this.onclose(new Error(`WebSocket closed with status code: ${e.code} (${e.reason||"no reason given"}).`)))}_isCloseEvent(e){return e&&"boolean"==typeof e.wasClean&&"number"==typeof e.code}}class Ve{constructor(e,t={}){var n;if(this._stopPromiseResolver=()=>{},this.features={},this._negotiateVersion=1,Ne.isRequired(e,"url"),this._logger=void 0===(n=t.logger)?new Fe(Ee.Information):null===n?Ae.instance:void 0!==n.log?n:new Fe(n),this.baseUrl=this._resolveUrl(e),(t=t||{}).logMessageContent=void 0!==t.logMessageContent&&t.logMessageContent,"boolean"!=typeof t.withCredentials&&void 0!==t.withCredentials)throw new Error("withCredentials option was not a 'boolean' or 'undefined' value");t.withCredentials=void 0===t.withCredentials||t.withCredentials,"undefined"==typeof WebSocket||t.WebSocket||(t.WebSocket=WebSocket),"undefined"==typeof EventSource||t.EventSource||(t.EventSource=EventSource),this._httpClient=t.httpClient||new Re(this._logger),this._connectionState="Disconnected",this._connectionStarted=!1,this._options=t,this.onreceive=null,this.onclose=null}async start(e){if(e=e||Ce.Binary,Ne.isIn(e,Ce,"transferFormat"),this._logger.log(Ee.Debug,`Starting connection with transfer format '${Ce[e]}'.`),"Disconnected"!==this._connectionState)return Promise.reject(new Error("Cannot start an HttpConnection that is not in the 'Disconnected' state."));if(this._connectionState="Connecting",this._startInternalPromise=this._startInternal(e),await this._startInternalPromise,"Disconnecting"===this._connectionState){const e="Failed to start the HttpConnection before stop() was called.";return this._logger.log(Ee.Error,e),await this._stopPromise,Promise.reject(new Error(e))}if("Connected"!==this._connectionState){const e="HttpConnection.startInternal completed gracefully but didn't enter the connection into the connected state!";return this._logger.log(Ee.Error,e),Promise.reject(new Error(e))}this._connectionStarted=!0}send(e){return"Connected"!==this._connectionState?Promise.reject(new Error("Cannot send data if the connection is not in the 'Connected' State.")):(this._sendQueue||(this._sendQueue=new Xe(this.transport)),this._sendQueue.send(e))}async stop(e){return"Disconnected"===this._connectionState?(this._logger.log(Ee.Debug,`Call to HttpConnection.stop(${e}) ignored because the connection is already in the disconnected state.`),Promise.resolve()):"Disconnecting"===this._connectionState?(this._logger.log(Ee.Debug,`Call to HttpConnection.stop(${e}) ignored because the connection is already in the disconnecting state.`),this._stopPromise):(this._connectionState="Disconnecting",this._stopPromise=new Promise((e=>{this._stopPromiseResolver=e})),await this._stopInternal(e),void await this._stopPromise)}async _stopInternal(e){this._stopError=e;try{await this._startInternalPromise}catch(e){}if(this.transport){try{await this.transport.stop()}catch(e){this._logger.log(Ee.Error,`HttpConnection.transport.stop() threw error '${e}'.`),this._stopConnection()}this.transport=void 0}else this._logger.log(Ee.Debug,"HttpConnection.transport is undefined in HttpConnection.stop() because start() failed.")}async _startInternal(e){let t=this.baseUrl;this._accessTokenFactory=this._options.accessTokenFactory;try{if(this._options.skipNegotiation){if(this._options.transport!==Se.WebSockets)throw new Error("Negotiation can only be skipped when using the WebSocket transport directly.");this.transport=this._constructTransport(Se.WebSockets),await this._startTransport(t,e)}else{let n=null,r=0;do{if(n=await this._getNegotiationResponse(t),"Disconnecting"===this._connectionState||"Disconnected"===this._connectionState)throw new Error("The connection was stopped during negotiation.");if(n.error)throw new Error(n.error);if(n.ProtocolVersion)throw new Error("Detected a connection attempt to an ASP.NET SignalR Server. This client only supports connecting to an ASP.NET Core SignalR Server. See https://aka.ms/signalr-core-differences for details.");if(n.url&&(t=n.url),n.accessToken){const e=n.accessToken;this._accessTokenFactory=()=>e}r++}while(n.url&&r<100);if(100===r&&n.url)throw new Error("Negotiate redirection limit exceeded.");await this._createTransport(t,this._options.transport,n,e)}this.transport instanceof qe&&(this.features.inherentKeepAlive=!0),"Connecting"===this._connectionState&&(this._logger.log(Ee.Debug,"The HttpConnection connected successfully."),this._connectionState="Connected")}catch(e){return this._logger.log(Ee.Error,"Failed to start the connection: "+e),this._connectionState="Disconnected",this.transport=void 0,this._stopPromiseResolver(),Promise.reject(e)}}async _getNegotiationResponse(e){const t={};if(this._accessTokenFactory){const e=await this._accessTokenFactory();e&&(t[Pe.Authorization]=`Bearer ${e}`)}const[n,r]=He();t[n]=r;const o=this._resolveNegotiateUrl(e);this._logger.log(Ee.Debug,`Sending negotiation request: ${o}.`);try{const e=await this._httpClient.post(o,{content:"",headers:{...t,...this._options.headers},withCredentials:this._options.withCredentials});if(200!==e.statusCode)return Promise.reject(new Error(`Unexpected status code returned from negotiate '${e.statusCode}'`));const n=JSON.parse(e.content);return(!n.negotiateVersion||n.negotiateVersion<1)&&(n.connectionToken=n.connectionId),n}catch(e){let t="Failed to complete negotiation with the server: "+e;return e instanceof ye&&404===e.statusCode&&(t+=" Either this is not a SignalR endpoint or there is a proxy blocking the connection."),this._logger.log(Ee.Error,t),Promise.reject(new Error(t))}}_createConnectUrl(e,t){return t?e+(-1===e.indexOf("?")?"?":"&")+`id=${t}`:e}async _createTransport(e,t,n,r){let o=this._createConnectUrl(e,n.connectionToken);if(this._isITransport(t))return this._logger.log(Ee.Debug,"Connection was provided an instance of ITransport, using that directly."),this.transport=t,await this._startTransport(o,r),void(this.connectionId=n.connectionId);const i=[],s=n.availableTransports||[];let a=n;for(const n of s){const s=this._resolveTransportOrError(n,t,r);if(s instanceof Error)i.push(`${n.transport} failed: ${s}`);else if(this._isITransport(s)){if(this.transport=s,!a){try{a=await this._getNegotiationResponse(e)}catch(e){return Promise.reject(e)}o=this._createConnectUrl(e,a.connectionToken)}try{return await this._startTransport(o,r),void(this.connectionId=a.connectionId)}catch(e){if(this._logger.log(Ee.Error,`Failed to start the transport '${n.transport}': ${e}`),a=void 0,i.push(`${n.transport} failed: ${e}`),"Connecting"!==this._connectionState){const e="Failed to select transport before stop() was called.";return this._logger.log(Ee.Debug,e),Promise.reject(new Error(e))}}}}return i.length>0?Promise.reject(new Error(`Unable to connect to the server with any of the available transports. ${i.join(" ")}`)):Promise.reject(new Error("None of the transports supported by the client are supported by the server."))}_constructTransport(e){switch(e){case Se.WebSockets:if(!this._options.WebSocket)throw new Error("'WebSocket' is not supported in your environment.");return new Ke(this._httpClient,this._accessTokenFactory,this._logger,this._options.logMessageContent||!1,this._options.WebSocket,this._options.headers||{});case Se.ServerSentEvents:if(!this._options.EventSource)throw new Error("'EventSource' is not supported in your environment.");return new Je(this._httpClient,this._accessTokenFactory,this._logger,this._options.logMessageContent||!1,this._options.EventSource,this._options.withCredentials,this._options.headers||{});case Se.LongPolling:return new qe(this._httpClient,this._accessTokenFactory,this._logger,this._options.logMessageContent||!1,this._options.withCredentials,this._options.headers||{});default:throw new Error(`Unknown transport: ${e}.`)}}_startTransport(e,t){return this.transport.onreceive=this.onreceive,this.transport.onclose=e=>this._stopConnection(e),this.transport.connect(e,t)}_resolveTransportOrError(e,t,n){const r=Se[e.transport];if(null==r)return this._logger.log(Ee.Debug,`Skipping transport '${e.transport}' because it is not supported by this client.`),new Error(`Skipping transport '${e.transport}' because it is not supported by this client.`);if(!function(e,t){return!e||0!=(t&e)}(t,r))return this._logger.log(Ee.Debug,`Skipping transport '${Se[r]}' because it was disabled by the client.`),new Error(`'${Se[r]}' is disabled by the client.`);if(!(e.transferFormats.map((e=>Ce[e])).indexOf(n)>=0))return this._logger.log(Ee.Debug,`Skipping transport '${Se[r]}' because it does not support the requested transfer format '${Ce[n]}'.`),new Error(`'${Se[r]}' does not support ${Ce[n]}.`);if(r===Se.WebSockets&&!this._options.WebSocket||r===Se.ServerSentEvents&&!this._options.EventSource)return this._logger.log(Ee.Debug,`Skipping transport '${Se[r]}' because it is not supported in your environment.'`),new Error(`'${Se[r]}' is not supported in your environment.`);this._logger.log(Ee.Debug,`Selecting transport '${Se[r]}'.`);try{return this._constructTransport(r)}catch(e){return e}}_isITransport(e){return e&&"object"==typeof e&&"connect"in e}_stopConnection(e){if(this._logger.log(Ee.Debug,`HttpConnection.stopConnection(${e}) called while in state ${this._connectionState}.`),this.transport=void 0,e=this._stopError||e,this._stopError=void 0,"Disconnected"!==this._connectionState){if("Connecting"===this._connectionState)throw this._logger.log(Ee.Warning,`Call to HttpConnection.stopConnection(${e}) was ignored because the connection is still in the connecting state.`),new Error(`HttpConnection.stopConnection(${e}) was called while the connection is still in the connecting state.`);if("Disconnecting"===this._connectionState&&this._stopPromiseResolver(),e?this._logger.log(Ee.Error,`Connection disconnected with error '${e}'.`):this._logger.log(Ee.Information,"Connection disconnected."),this._sendQueue&&(this._sendQueue.stop().catch((e=>{this._logger.log(Ee.Error,`TransportSendQueue.stop() threw error '${e}'.`)})),this._sendQueue=void 0),this.connectionId=void 0,this._connectionState="Disconnected",this._connectionStarted){this._connectionStarted=!1;try{this.onclose&&this.onclose(e)}catch(t){this._logger.log(Ee.Error,`HttpConnection.onclose(${e}) threw error '${t}'.`)}}}else this._logger.log(Ee.Debug,`Call to HttpConnection.stopConnection(${e}) was ignored because the connection is already in the disconnected state.`)}_resolveUrl(e){if(0===e.lastIndexOf("https://",0)||0===e.lastIndexOf("http://",0))return e;if(!Be.isBrowser||!window.document)throw new Error(`Cannot resolve '${e}'.`);const t=window.document.createElement("a");return t.href=e,this._logger.log(Ee.Information,`Normalizing '${e}' to '${t.href}'.`),t.href}_resolveNegotiateUrl(e){const t=e.indexOf("?");let n=e.substring(0,-1===t?e.length:t);return"/"!==n[n.length-1]&&(n+="/"),n+="negotiate",n+=-1===t?"":e.substring(t),-1===n.indexOf("negotiateVersion")&&(n+=-1===t?"?":"&",n+="negotiateVersion="+this._negotiateVersion),n}}class Xe{constructor(e){this._transport=e,this._buffer=[],this._executing=!0,this._sendBufferedData=new Ye,this._transportResult=new Ye,this._sendLoopPromise=this._sendLoop()}send(e){return this._bufferData(e),this._transportResult||(this._transportResult=new Ye),this._transportResult.promise}stop(){return this._executing=!1,this._sendBufferedData.resolve(),this._sendLoopPromise}_bufferData(e){if(this._buffer.length&&typeof this._buffer[0]!=typeof e)throw new Error(`Expected data to be of type ${typeof this._buffer} but was of type ${typeof e}`);this._buffer.push(e),this._sendBufferedData.resolve()}async _sendLoop(){for(;;){if(await this._sendBufferedData.promise,!this._executing){this._transportResult&&this._transportResult.reject("Connection stopped.");break}this._sendBufferedData=new Ye;const e=this._transportResult;this._transportResult=void 0;const t="string"==typeof this._buffer[0]?this._buffer.join(""):Xe._concatBuffers(this._buffer);this._buffer.length=0;try{await this._transport.send(t),e.resolve()}catch(t){e.reject(t)}}}static _concatBuffers(e){const t=e.map((e=>e.byteLength)).reduce(((e,t)=>e+t)),n=new Uint8Array(t);let r=0;for(const t of e)n.set(new Uint8Array(t),r),r+=t.byteLength;return n.buffer}}class Ye{constructor(){this.promise=new Promise(((e,t)=>[this._resolver,this._rejecter]=[e,t]))}resolve(){this._resolver()}reject(e){this._rejecter(e)}}class Ge{static write(e){return`${e}${Ge.RecordSeparator}`}static parse(e){if(e[e.length-1]!==Ge.RecordSeparator)throw new Error("Message is incomplete.");const t=e.split(Ge.RecordSeparator);return t.pop(),t}}Ge.RecordSeparatorCode=30,Ge.RecordSeparator=String.fromCharCode(Ge.RecordSeparatorCode);class Qe{writeHandshakeRequest(e){return Ge.write(JSON.stringify(e))}parseHandshakeResponse(e){let t,n;if(Le(e)){const r=new Uint8Array(e),o=r.indexOf(Ge.RecordSeparatorCode);if(-1===o)throw new Error("Message is incomplete.");const i=o+1;t=String.fromCharCode.apply(null,Array.prototype.slice.call(r.slice(0,i))),n=r.byteLength>i?r.slice(i).buffer:null}else{const r=e,o=r.indexOf(Ge.RecordSeparator);if(-1===o)throw new Error("Message is incomplete.");const i=o+1;t=r.substring(0,i),n=r.length>i?r.substring(i):null}const r=Ge.parse(t),o=JSON.parse(r[0]);if(o.type)throw new Error("Expected a handshake response from the server.");return[n,o]}}!function(e){e[e.Invocation=1]="Invocation",e[e.StreamItem=2]="StreamItem",e[e.Completion=3]="Completion",e[e.StreamInvocation=4]="StreamInvocation",e[e.CancelInvocation=5]="CancelInvocation",e[e.Ping=6]="Ping",e[e.Close=7]="Close"}(Ie||(Ie={}));class Ze{constructor(){this.observers=[]}next(e){for(const t of this.observers)t.next(e)}error(e){for(const t of this.observers)t.error&&t.error(e)}complete(){for(const e of this.observers)e.complete&&e.complete()}subscribe(e){return this.observers.push(e),new Oe(this,e)}}!function(e){e.Disconnected="Disconnected",e.Connecting="Connecting",e.Connected="Connected",e.Disconnecting="Disconnecting",e.Reconnecting="Reconnecting"}(ke||(ke={}));class et{constructor(e,t,n,r){this._nextKeepAlive=0,Ne.isRequired(e,"connection"),Ne.isRequired(t,"logger"),Ne.isRequired(n,"protocol"),this.serverTimeoutInMilliseconds=3e4,this.keepAliveIntervalInMilliseconds=15e3,this._logger=t,this._protocol=n,this.connection=e,this._reconnectPolicy=r,this._handshakeProtocol=new Qe,this.connection.onreceive=e=>this._processIncomingData(e),this.connection.onclose=e=>this._connectionClosed(e),this._callbacks={},this._methods={},this._closedCallbacks=[],this._reconnectingCallbacks=[],this._reconnectedCallbacks=[],this._invocationId=0,this._receivedHandshakeResponse=!1,this._connectionState=ke.Disconnected,this._connectionStarted=!1,this._cachedPingMessage=this._protocol.writeMessage({type:Ie.Ping})}static create(e,t,n,r){return new et(e,t,n,r)}get state(){return this._connectionState}get connectionId(){return this.connection&&this.connection.connectionId||null}get baseUrl(){return this.connection.baseUrl||""}set baseUrl(e){if(this._connectionState!==ke.Disconnected&&this._connectionState!==ke.Reconnecting)throw new Error("The HubConnection must be in the Disconnected or Reconnecting state to change the url.");if(!e)throw new Error("The HubConnection url must be a valid url.");this.connection.baseUrl=e}start(){return this._startPromise=this._startWithStateTransitions(),this._startPromise}async _startWithStateTransitions(){if(this._connectionState!==ke.Disconnected)return Promise.reject(new Error("Cannot start a HubConnection that is not in the 'Disconnected' state."));this._connectionState=ke.Connecting,this._logger.log(Ee.Debug,"Starting HubConnection.");try{await this._startInternal(),this._connectionState=ke.Connected,this._connectionStarted=!0,this._logger.log(Ee.Debug,"HubConnection connected successfully.")}catch(e){return this._connectionState=ke.Disconnected,this._logger.log(Ee.Debug,`HubConnection failed to start successfully because of error '${e}'.`),Promise.reject(e)}}async _startInternal(){this._stopDuringStartError=void 0,this._receivedHandshakeResponse=!1;const e=new Promise(((e,t)=>{this._handshakeResolver=e,this._handshakeRejecter=t}));await this.connection.start(this._protocol.transferFormat);try{const t={protocol:this._protocol.name,version:this._protocol.version};if(this._logger.log(Ee.Debug,"Sending handshake request."),await this._sendMessage(this._handshakeProtocol.writeHandshakeRequest(t)),this._logger.log(Ee.Information,`Using HubProtocol '${this._protocol.name}'.`),this._cleanupTimeout(),this._resetTimeoutPeriod(),this._resetKeepAliveInterval(),await e,this._stopDuringStartError)throw this._stopDuringStartError}catch(e){throw this._logger.log(Ee.Debug,`Hub handshake failed with error '${e}' during start(). Stopping HubConnection.`),this._cleanupTimeout(),this._cleanupPingTimer(),await this.connection.stop(e),e}}async stop(){const e=this._startPromise;this._stopPromise=this._stopInternal(),await this._stopPromise;try{await e}catch(e){}}_stopInternal(e){return this._connectionState===ke.Disconnected?(this._logger.log(Ee.Debug,`Call to HubConnection.stop(${e}) ignored because it is already in the disconnected state.`),Promise.resolve()):this._connectionState===ke.Disconnecting?(this._logger.log(Ee.Debug,`Call to HttpConnection.stop(${e}) ignored because the connection is already in the disconnecting state.`),this._stopPromise):(this._connectionState=ke.Disconnecting,this._logger.log(Ee.Debug,"Stopping HubConnection."),this._reconnectDelayHandle?(this._logger.log(Ee.Debug,"Connection stopped during reconnect delay. Done reconnecting."),clearTimeout(this._reconnectDelayHandle),this._reconnectDelayHandle=void 0,this._completeClose(),Promise.resolve()):(this._cleanupTimeout(),this._cleanupPingTimer(),this._stopDuringStartError=e||new Error("The connection was stopped before the hub handshake could complete."),this.connection.stop(e)))}stream(e,...t){const[n,r]=this._replaceStreamingParams(t),o=this._createStreamInvocation(e,t,r);let i;const s=new Ze;return s.cancelCallback=()=>{const e=this._createCancelInvocation(o.invocationId);return delete this._callbacks[o.invocationId],i.then((()=>this._sendWithProtocol(e)))},this._callbacks[o.invocationId]=(e,t)=>{t?s.error(t):e&&(e.type===Ie.Completion?e.error?s.error(new Error(e.error)):s.complete():s.next(e.item))},i=this._sendWithProtocol(o).catch((e=>{s.error(e),delete this._callbacks[o.invocationId]})),this._launchStreams(n,i),s}_sendMessage(e){return this._resetKeepAliveInterval(),this.connection.send(e)}_sendWithProtocol(e){return this._sendMessage(this._protocol.writeMessage(e))}send(e,...t){const[n,r]=this._replaceStreamingParams(t),o=this._sendWithProtocol(this._createInvocation(e,t,!0,r));return this._launchStreams(n,o),o}invoke(e,...t){const[n,r]=this._replaceStreamingParams(t),o=this._createInvocation(e,t,!1,r);return new Promise(((e,t)=>{this._callbacks[o.invocationId]=(n,r)=>{r?t(r):n&&(n.type===Ie.Completion?n.error?t(new Error(n.error)):e(n.result):t(new Error(`Unexpected message type: ${n.type}`)))};const r=this._sendWithProtocol(o).catch((e=>{t(e),delete this._callbacks[o.invocationId]}));this._launchStreams(n,r)}))}on(e,t){e&&t&&(e=e.toLowerCase(),this._methods[e]||(this._methods[e]=[]),-1===this._methods[e].indexOf(t)&&this._methods[e].push(t))}off(e,t){if(!e)return;e=e.toLowerCase();const n=this._methods[e];if(n)if(t){const r=n.indexOf(t);-1!==r&&(n.splice(r,1),0===n.length&&delete this._methods[e])}else delete 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11:return[7];case 12:if(i){if(this.hasRemaining())throw this.createExtraByteError(this.totalPos);return[2,s]}throw h=(l=this).headByte,u=l.pos,d=l.totalPos,new RangeError("Insufficient data in parsing "+bt(h)+" at "+d+" ("+u+" in the current buffer)")}}))},new((s=void 0)||(s=Promise))((function(e,t){function n(e){try{o(a.next(e))}catch(e){t(e)}}function r(e){try{o(a.throw(e))}catch(e){t(e)}}function o(t){var o;t.done?e(t.value):(o=t.value,o instanceof s?o:new s((function(e){e(o)}))).then(n,r)}o((a=a.apply(i,[])).next())}))},e.prototype.decodeArrayStream=function(e){return this.decodeMultiAsync(e,!0)},e.prototype.decodeStream=function(e){return this.decodeMultiAsync(e,!1)},e.prototype.decodeMultiAsync=function(e,t){return Tt(this,arguments,(function(){var n,r,o,i,s,a,c,l,h;return Ct(this,(function(u){switch(u.label){case 0:n=t,r=-1,u.label=1;case 1:u.trys.push([1,13,14,19]),o=It(e),u.label=2;case 2:return[4,kt(o.next())];case 3:if((i=u.sent()).done)return[3,12];if(s=i.value,t&&0===r)throw this.createExtraByteError(this.totalPos);this.appendBuffer(s),n&&(r=this.readArraySize(),n=!1,this.complete()),u.label=4;case 4:u.trys.push([4,9,,10]),u.label=5;case 5:return[4,kt(this.doDecodeSync())];case 6:return[4,u.sent()];case 7:return u.sent(),0==--r?[3,8]:[3,5];case 8:return[3,10];case 9:if(!((a=u.sent())instanceof Rt))throw a;return[3,10];case 10:this.totalPos+=this.pos,u.label=11;case 11:return[3,2];case 12:return[3,19];case 13:return c=u.sent(),l={error:c},[3,19];case 14:return u.trys.push([14,,17,18]),i&&!i.done&&(h=o.return)?[4,kt(h.call(o))]:[3,16];case 15:u.sent(),u.label=16;case 16:return[3,18];case 17:if(l)throw l.error;return[7];case 18:return[7];case 19:return[2]}}))}))},e.prototype.doDecodeSync=function(){e:for(;;){var e=this.readHeadByte(),t=void 0;if(e>=224)t=e-256;else if(e<192)if(e<128)t=e;else if(e<144){if(0!=(r=e-128)){this.pushMapState(r),this.complete();continue e}t={}}else if(e<160){if(0!=(r=e-144)){this.pushArrayState(r),this.complete();continue e}t=[]}else{var n=e-160;t=this.decodeUtf8String(n,0)}else if(192===e)t=null;else if(194===e)t=!1;else if(195===e)t=!0;else if(202===e)t=this.readF32();else if(203===e)t=this.readF64();else if(204===e)t=this.readU8();else if(205===e)t=this.readU16();else if(206===e)t=this.readU32();else if(207===e)t=this.readU64();else if(208===e)t=this.readI8();else if(209===e)t=this.readI16();else if(210===e)t=this.readI32();else if(211===e)t=this.readI64();else if(217===e)n=this.lookU8(),t=this.decodeUtf8String(n,1);else if(218===e)n=this.lookU16(),t=this.decodeUtf8String(n,2);else if(219===e)n=this.lookU32(),t=this.decodeUtf8String(n,4);else if(220===e){if(0!==(r=this.readU16())){this.pushArrayState(r),this.complete();continue e}t=[]}else if(221===e){if(0!==(r=this.readU32())){this.pushArrayState(r),this.complete();continue e}t=[]}else if(222===e){if(0!==(r=this.readU16())){this.pushMapState(r),this.complete();continue e}t={}}else if(223===e){if(0!==(r=this.readU32())){this.pushMapState(r),this.complete();continue e}t={}}else if(196===e){var r=this.lookU8();t=this.decodeBinary(r,1)}else if(197===e)r=this.lookU16(),t=this.decodeBinary(r,2);else if(198===e)r=this.lookU32(),t=this.decodeBinary(r,4);else if(212===e)t=this.decodeExtension(1,0);else if(213===e)t=this.decodeExtension(2,0);else if(214===e)t=this.decodeExtension(4,0);else if(215===e)t=this.decodeExtension(8,0);else if(216===e)t=this.decodeExtension(16,0);else if(199===e)r=this.lookU8(),t=this.decodeExtension(r,1);else if(200===e)r=this.lookU16(),t=this.decodeExtension(r,2);else{if(201!==e)throw new Nt("Unrecognized type byte: "+bt(e));r=this.lookU32(),t=this.decodeExtension(r,4)}this.complete();for(var o=this.stack;o.length>0;){var i=o[o.length-1];if(0===i.type){if(i.array[i.position]=t,i.position++,i.position!==i.size)continue e;o.pop(),t=i.array}else{if(1===i.type){if("string"!=(s=typeof t)&&"number"!==s)throw new Nt("The type of key must be string or number but "+typeof t);if("__proto__"===t)throw new Nt("The key __proto__ is not allowed");i.key=t,i.type=2;continue e}if(i.map[i.key]=t,i.readCount++,i.readCount!==i.size){i.key=null,i.type=1;continue e}o.pop(),t=i.map}}return t}var s},e.prototype.readHeadByte=function(){return-1===this.headByte&&(this.headByte=this.readU8()),this.headByte},e.prototype.complete=function(){this.headByte=-1},e.prototype.readArraySize=function(){var e=this.readHeadByte();switch(e){case 220:return this.readU16();case 221:return this.readU32();default:if(e<160)return e-144;throw new Nt("Unrecognized array type byte: "+bt(e))}},e.prototype.pushMapState=function(e){if(e>this.maxMapLength)throw new Nt("Max length exceeded: map length ("+e+") > maxMapLengthLength ("+this.maxMapLength+")");this.stack.push({type:1,size:e,key:null,readCount:0,map:{}})},e.prototype.pushArrayState=function(e){if(e>this.maxArrayLength)throw new Nt("Max length exceeded: array length ("+e+") > maxArrayLength ("+this.maxArrayLength+")");this.stack.push({type:0,size:e,array:new Array(e),position:0})},e.prototype.decodeUtf8String=function(e,t){var n;if(e>this.maxStrLength)throw new Nt("Max length exceeded: UTF-8 byte length ("+e+") > maxStrLength ("+this.maxStrLength+")");if(this.bytes.byteLengthdt?function(e,t,n){var r=e.subarray(t,t+n);return ut.decode(r)}(this.bytes,o,e):ht(this.bytes,o,e),this.pos+=t+e,r},e.prototype.stateIsMapKey=function(){return this.stack.length>0&&1===this.stack[this.stack.length-1].type},e.prototype.decodeBinary=function(e,t){if(e>this.maxBinLength)throw new Nt("Max length exceeded: bin length ("+e+") > maxBinLength ("+this.maxBinLength+")");if(!this.hasRemaining(e+t))throw Pt;var n=this.pos+t,r=this.bytes.subarray(n,n+e);return this.pos+=t+e,r},e.prototype.decodeExtension=function(e,t){if(e>this.maxExtLength)throw new Nt("Max length exceeded: ext length ("+e+") > maxExtLength ("+this.maxExtLength+")");var n=this.view.getInt8(this.pos+t),r=this.decodeBinary(e,t+1);return this.extensionCodec.decode(r,n,this.context)},e.prototype.lookU8=function(){return this.view.getUint8(this.pos)},e.prototype.lookU16=function(){return this.view.getUint16(this.pos)},e.prototype.lookU32=function(){return this.view.getUint32(this.pos)},e.prototype.readU8=function(){var e=this.view.getUint8(this.pos);return this.pos++,e},e.prototype.readI8=function(){var e=this.view.getInt8(this.pos);return this.pos++,e},e.prototype.readU16=function(){var e=this.view.getUint16(this.pos);return this.pos+=2,e},e.prototype.readI16=function(){var e=this.view.getInt16(this.pos);return this.pos+=2,e},e.prototype.readU32=function(){var e=this.view.getUint32(this.pos);return this.pos+=4,e},e.prototype.readI32=function(){var e=this.view.getInt32(this.pos);return this.pos+=4,e},e.prototype.readU64=function(){var e,t,n=(e=this.view,t=this.pos,4294967296*e.getUint32(t)+e.getUint32(t+4));return this.pos+=8,n},e.prototype.readI64=function(){var e=gt(this.view,this.pos);return this.pos+=8,e},e.prototype.readF32=function(){var e=this.view.getFloat32(this.pos);return this.pos+=4,e},e.prototype.readF64=function(){var e=this.view.getFloat64(this.pos);return this.pos+=8,e},e}();class $t{static write(e){let t=e.byteLength||e.length;const n=[];do{let e=127&t;t>>=7,t>0&&(e|=128),n.push(e)}while(t>0);t=e.byteLength||e.length;const r=new Uint8Array(n.length+t);return r.set(n,0),r.set(e,n.length),r.buffer}static parse(e){const t=[],n=new Uint8Array(e),r=[0,7,14,21,28];for(let o=0;o7)throw new Error("Messages bigger than 2GB are not supported.");if(!(n.byteLength>=o+s+a))throw new Error("Incomplete message.");t.push(n.slice?n.slice(o+s,o+s+a):n.subarray(o+s,o+s+a)),o=o+s+a}return t}}const Lt=new Uint8Array([145,Ie.Ping]);class Mt{constructor(e){this.name="messagepack",this.version=1,this.transferFormat=Ce.Binary,this._errorResult=1,this._voidResult=2,this._nonVoidResult=3,e=e||{},this._encoder=new vt(e.extensionCodec,e.context,e.maxDepth,e.initialBufferSize,e.sortKeys,e.forceFloat32,e.ignoreUndefined,e.forceIntegerToFloat),this._decoder=new Bt(e.extensionCodec,e.context,e.maxStrLength,e.maxBinLength,e.maxArrayLength,e.maxMapLength,e.maxExtLength)}parseMessages(e,t){if(!(n=e)||"undefined"==typeof ArrayBuffer||!(n instanceof ArrayBuffer||n.constructor&&"ArrayBuffer"===n.constructor.name))throw new Error("Invalid input for MessagePack hub protocol. Expected an ArrayBuffer.");var n;null===t&&(t=Ae.instance);const r=$t.parse(e),o=[];for(const e of r){const n=this._parseMessage(e,t);n&&o.push(n)}return o}writeMessage(e){switch(e.type){case Ie.Invocation:return this._writeInvocation(e);case Ie.StreamInvocation:return this._writeStreamInvocation(e);case Ie.StreamItem:return this._writeStreamItem(e);case Ie.Completion:return this._writeCompletion(e);case Ie.Ping:return $t.write(Lt);case Ie.CancelInvocation:return this._writeCancelInvocation(e);default:throw new Error("Invalid message type.")}}_parseMessage(e,t){if(0===e.length)throw new Error("Invalid payload.");const n=this._decoder.decode(e);if(0===n.length||!(n instanceof Array))throw new Error("Invalid payload.");const r=n[0];switch(r){case Ie.Invocation:return this._createInvocationMessage(this._readHeaders(n),n);case Ie.StreamItem:return this._createStreamItemMessage(this._readHeaders(n),n);case Ie.Completion:return this._createCompletionMessage(this._readHeaders(n),n);case Ie.Ping:return this._createPingMessage(n);case Ie.Close:return this._createCloseMessage(n);default:return t.log(Ee.Information,"Unknown message type '"+r+"' ignored."),null}}_createCloseMessage(e){if(e.length<2)throw new Error("Invalid payload for Close message.");return{allowReconnect:e.length>=3?e[2]:void 0,error:e[1],type:Ie.Close}}_createPingMessage(e){if(e.length<1)throw new Error("Invalid payload for Ping message.");return{type:Ie.Ping}}_createInvocationMessage(e,t){if(t.length<5)throw new Error("Invalid payload for Invocation message.");const n=t[2];return n?{arguments:t[4],headers:e,invocationId:n,streamIds:[],target:t[3],type:Ie.Invocation}:{arguments:t[4],headers:e,streamIds:[],target:t[3],type:Ie.Invocation}}_createStreamItemMessage(e,t){if(t.length<4)throw new Error("Invalid payload for StreamItem message.");return{headers:e,invocationId:t[2],item:t[3],type:Ie.StreamItem}}_createCompletionMessage(e,t){if(t.length<4)throw new Error("Invalid payload for Completion message.");const n=t[3];if(n!==this._voidResult&&t.length<5)throw new Error("Invalid payload for Completion message.");let r,o;switch(n){case this._errorResult:r=t[4];break;case this._nonVoidResult:o=t[4]}return{error:r,headers:e,invocationId:t[2],result:o,type:Ie.Completion}}_writeInvocation(e){let t;return t=e.streamIds?this._encoder.encode([Ie.Invocation,e.headers||{},e.invocationId||null,e.target,e.arguments,e.streamIds]):this._encoder.encode([Ie.Invocation,e.headers||{},e.invocationId||null,e.target,e.arguments]),$t.write(t.slice())}_writeStreamInvocation(e){let t;return t=e.streamIds?this._encoder.encode([Ie.StreamInvocation,e.headers||{},e.invocationId,e.target,e.arguments,e.streamIds]):this._encoder.encode([Ie.StreamInvocation,e.headers||{},e.invocationId,e.target,e.arguments]),$t.write(t.slice())}_writeStreamItem(e){const t=this._encoder.encode([Ie.StreamItem,e.headers||{},e.invocationId,e.item]);return $t.write(t.slice())}_writeCompletion(e){const t=e.error?this._errorResult:e.result?this._nonVoidResult:this._voidResult;let n;switch(t){case this._errorResult:n=this._encoder.encode([Ie.Completion,e.headers||{},e.invocationId,t,e.error]);break;case this._voidResult:n=this._encoder.encode([Ie.Completion,e.headers||{},e.invocationId,t]);break;case this._nonVoidResult:n=this._encoder.encode([Ie.Completion,e.headers||{},e.invocationId,t,e.result])}return $t.write(n.slice())}_writeCancelInvocation(e){const t=this._encoder.encode([Ie.CancelInvocation,e.headers||{},e.invocationId]);return $t.write(t.slice())}_readHeaders(e){const t=e[1];if("object"!=typeof t)throw new Error("Invalid headers.");return t}}let Ot=!1;const Ft="function"==typeof TextDecoder?new TextDecoder("utf-8"):null,Ht=Ft?Ft.decode.bind(Ft):function(e){let t=0;const n=e.length,r=[],o=[];for(;t65535&&(o-=65536,r.push(o>>>10&1023|55296),o=56320|1023&o),r.push(o)}r.length>1024&&(o.push(String.fromCharCode.apply(null,r)),r.length=0)}return o.push(String.fromCharCode.apply(null,r)),o.join("")},jt=Math.pow(2,32),Wt=Math.pow(2,21)-1;function zt(e,t){return e[t]|e[t+1]<<8|e[t+2]<<16|e[t+3]<<24}function qt(e,t){return e[t]+(e[t+1]<<8)+(e[t+2]<<16)+(e[t+3]<<24>>>0)}function Jt(e,t){const n=qt(e,t+4);if(n>Wt)throw new Error(`Cannot read uint64 with high order part ${n}, because the result would exceed Number.MAX_SAFE_INTEGER.`);return n*jt+qt(e,t)}class Kt{constructor(e){this.batchData=e;const t=new Gt(e);this.arrayRangeReader=new Qt(e),this.arrayBuilderSegmentReader=new Zt(e),this.diffReader=new Vt(e),this.editReader=new Xt(e,t),this.frameReader=new Yt(e,t)}updatedComponents(){return zt(this.batchData,this.batchData.length-20)}referenceFrames(){return zt(this.batchData,this.batchData.length-16)}disposedComponentIds(){return zt(this.batchData,this.batchData.length-12)}disposedEventHandlerIds(){return zt(this.batchData,this.batchData.length-8)}updatedComponentsEntry(e,t){const n=e+4*t;return zt(this.batchData,n)}referenceFramesEntry(e,t){return e+20*t}disposedComponentIdsEntry(e,t){const n=e+4*t;return zt(this.batchData,n)}disposedEventHandlerIdsEntry(e,t){const n=e+8*t;return Jt(this.batchData,n)}}class Vt{constructor(e){this.batchDataUint8=e}componentId(e){return zt(this.batchDataUint8,e)}edits(e){return e+4}editsEntry(e,t){return e+16*t}}class Xt{constructor(e,t){this.batchDataUint8=e,this.stringReader=t}editType(e){return zt(this.batchDataUint8,e)}siblingIndex(e){return zt(this.batchDataUint8,e+4)}newTreeIndex(e){return zt(this.batchDataUint8,e+8)}moveToSiblingIndex(e){return zt(this.batchDataUint8,e+8)}removedAttributeName(e){const t=zt(this.batchDataUint8,e+12);return this.stringReader.readString(t)}}class Yt{constructor(e,t){this.batchDataUint8=e,this.stringReader=t}frameType(e){return zt(this.batchDataUint8,e)}subtreeLength(e){return zt(this.batchDataUint8,e+4)}elementReferenceCaptureId(e){const t=zt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}componentId(e){return zt(this.batchDataUint8,e+8)}elementName(e){const t=zt(this.batchDataUint8,e+8);return this.stringReader.readString(t)}textContent(e){const t=zt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}markupContent(e){const t=zt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}attributeName(e){const t=zt(this.batchDataUint8,e+4);return this.stringReader.readString(t)}attributeValue(e){const t=zt(this.batchDataUint8,e+8);return this.stringReader.readString(t)}attributeEventHandlerId(e){return Jt(this.batchDataUint8,e+12)}}class Gt{constructor(e){this.batchDataUint8=e,this.stringTableStartIndex=zt(e,e.length-4)}readString(e){if(-1===e)return null;{const n=zt(this.batchDataUint8,this.stringTableStartIndex+4*e),r=function(e,t){let n=0,r=0;for(let o=0;o<4;o++){const i=e[t+o];if(n|=(127&i)<this.nextBatchId)return this.fatalError?(this.logger.log(en.Debug,`Received a new batch ${e} but errored out on a previous batch ${this.nextBatchId-1}`),void await n.send("OnRenderCompleted",this.nextBatchId-1,this.fatalError.toString())):void this.logger.log(en.Debug,`Waiting for batch ${this.nextBatchId}. Batch ${e} not processed.`);try{this.nextBatchId++,this.logger.log(en.Debug,`Applying batch ${e}.`),function(e,t){const n=Q[e];if(!n)throw new Error(`There is no browser renderer with ID ${e}.`);const r=t.arrayRangeReader,o=t.updatedComponents(),i=r.values(o),s=r.count(o),a=t.referenceFrames(),c=r.values(a),l=t.diffReader;for(let e=0;e=this.minLevel){const n=`[${(new Date).toISOString()}] ${en[e]}: ${t}`;switch(e){case en.Critical:case en.Error:console.error(n);break;case en.Warning:console.warn(n);break;case en.Information:console.info(n);break;default:console.log(n)}}}}class on{constructor(e,t){this.circuitId=void 0,this.components=e,this.applicationState=t}reconnect(e){if(!this.circuitId)throw new Error("Circuit host not initialized.");return e.state!==ke.Connected?Promise.resolve(!1):e.invoke("ConnectCircuit",this.circuitId)}initialize(e){if(this.circuitId)throw new Error(`Circuit host '${this.circuitId}' already initialized.`);this.circuitId=e}async startCircuit(e){if(e.state!==ke.Connected)return!1;const t=await e.invoke("StartCircuit",re.getBaseURI(),re.getLocationHref(),JSON.stringify(this.components.map((e=>e.toRecord()))),this.applicationState||"");return!!t&&(this.initialize(t),!0)}resolveElement(e){const t=Number.parseInt(e);if(Number.isNaN(t))throw new Error(`Invalid sequence number '${e}'.`);return function(e,t){if(!e.parentNode)throw new Error(`Comment not connected to the DOM ${e.textContent}`);const n=e.parentNode,r=k(n,!0),o=A(r);return Array.from(n.childNodes).forEach((e=>o.push(e))),e[C]=r,t&&(e[I]=t,k(t)),k(e)}(this.components[t].start,this.components[t].end)}}const sn={configureSignalR:e=>{},logLevel:en.Warning,reconnectionOptions:{maxRetries:8,retryIntervalMilliseconds:2e4,dialogId:"components-reconnect-modal"}};class an{constructor(e,t,n,r){this.maxRetries=t,this.document=n,this.logger=r,this.addedToDom=!1,this.modal=this.document.createElement("div"),this.modal.id=e,this.maxRetries=t,this.modal.style.cssText=["position: fixed","top: 0","right: 0","bottom: 0","left: 0","z-index: 1050","display: none","overflow: hidden","background-color: #fff","opacity: 0.8","text-align: center","font-weight: bold","transition: visibility 0s linear 500ms"].join(";"),this.modal.innerHTML='

Alternatively, reload

',this.message=this.modal.querySelector("h5"),this.button=this.modal.querySelector("button"),this.reloadParagraph=this.modal.querySelector("p"),this.loader=this.getLoader(),this.message.after(this.loader),this.button.addEventListener("click",(async()=>{this.show();try{await(null==fe?void 0:fe.reconnect)()||this.rejected()}catch(e){this.logger.log(en.Error,e),this.failed()}})),this.reloadParagraph.querySelector("a").addEventListener("click",(()=>location.reload()))}show(){this.addedToDom||(this.addedToDom=!0,this.document.body.appendChild(this.modal)),this.modal.style.display="block",this.loader.style.display="inline-block",this.button.style.display="none",this.reloadParagraph.style.display="none",this.message.textContent="Attempting to reconnect to the server...",this.modal.style.visibility="hidden",setTimeout((()=>{this.modal.style.visibility="visible"}),0)}update(e){this.message.textContent=`Attempting to reconnect to the server: ${e} of ${this.maxRetries}`}hide(){this.modal.style.display="none"}failed(){this.button.style.display="block",this.reloadParagraph.style.display="none",this.loader.style.display="none",this.message.innerHTML="Reconnection failed. Try reloading the page if you're unable to reconnect.",this.message.querySelector("a").addEventListener("click",(()=>location.reload()))}rejected(){this.button.style.display="none",this.reloadParagraph.style.display="none",this.loader.style.display="none",this.message.innerHTML="Could not reconnect to the server. Reload the page to restore functionality.",this.message.querySelector("a").addEventListener("click",(()=>location.reload()))}getLoader(){const e=this.document.createElement("div");return e.style.cssText=["border: 0.3em solid #f3f3f3","border-top: 0.3em solid #3498db","border-radius: 50%","width: 2em","height: 2em","display: inline-block"].join(";"),e.animate([{transform:"rotate(0deg)"},{transform:"rotate(360deg)"}],{duration:2e3,iterations:1/0}),e}}class cn{constructor(e,t,n){this.dialog=e,this.maxRetries=t,this.document=n,this.document=n;const r=this.document.getElementById(cn.MaxRetriesId);r&&(r.innerText=this.maxRetries.toString())}show(){this.removeClasses(),this.dialog.classList.add(cn.ShowClassName)}update(e){const t=this.document.getElementById(cn.CurrentAttemptId);t&&(t.innerText=e.toString())}hide(){this.removeClasses(),this.dialog.classList.add(cn.HideClassName)}failed(){this.removeClasses(),this.dialog.classList.add(cn.FailedClassName)}rejected(){this.removeClasses(),this.dialog.classList.add(cn.RejectedClassName)}removeClasses(){this.dialog.classList.remove(cn.ShowClassName,cn.HideClassName,cn.FailedClassName,cn.RejectedClassName)}}cn.ShowClassName="components-reconnect-show",cn.HideClassName="components-reconnect-hide",cn.FailedClassName="components-reconnect-failed",cn.RejectedClassName="components-reconnect-rejected",cn.MaxRetriesId="components-reconnect-max-retries",cn.CurrentAttemptId="components-reconnect-current-attempt";class ln{constructor(e,t,n){this._currentReconnectionProcess=null,this._logger=e,this._reconnectionDisplay=t,this._reconnectCallback=n||(()=>fe.reconnect())}onConnectionDown(e,t){if(!this._reconnectionDisplay){const t=document.getElementById(e.dialogId);this._reconnectionDisplay=t?new cn(t,e.maxRetries,document):new an(e.dialogId,e.maxRetries,document,this._logger)}this._currentReconnectionProcess||(this._currentReconnectionProcess=new hn(e,this._logger,this._reconnectCallback,this._reconnectionDisplay))}onConnectionUp(){this._currentReconnectionProcess&&(this._currentReconnectionProcess.dispose(),this._currentReconnectionProcess=null)}}class hn{constructor(e,t,n,r){this.logger=t,this.reconnectCallback=n,this.isDisposed=!1,this.reconnectDisplay=r,this.reconnectDisplay.show(),this.attemptPeriodicReconnection(e)}dispose(){this.isDisposed=!0,this.reconnectDisplay.hide()}async attemptPeriodicReconnection(e){for(let t=0;thn.MaximumFirstRetryInterval?hn.MaximumFirstRetryInterval:e.retryIntervalMilliseconds;if(await this.delay(n),this.isDisposed)break;try{return await this.reconnectCallback()?void 0:void 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No newline at end of file diff --git a/src/Components/Web.JS/src/Boot.Server.ts b/src/Components/Web.JS/src/Boot.Server.ts index d559adc400a4..c6744916f477 100644 --- a/src/Components/Web.JS/src/Boot.Server.ts +++ b/src/Components/Web.JS/src/Boot.Server.ts @@ -14,6 +14,7 @@ import { DefaultReconnectionHandler } from './Platform/Circuits/DefaultReconnect import { attachRootComponentToLogicalElement } from './Rendering/Renderer'; import { discoverComponents, discoverPersistedState, ServerComponentDescriptor } from './Services/ComponentDescriptorDiscovery'; import { InputFile } from './InputFile'; +import { sendJSDataStream } from './Platform/Circuits/CircuitStreamingInterop'; let renderingFailed = false; let started = false; @@ -122,6 +123,8 @@ async function initializeConnection(options: CircuitStartOptions, logger: Logger Blazor._internal.forceCloseConnection = () => connection.stop(); + Blazor._internal.sendJSDataStream = (data: ArrayBufferView, streamId: string, chunkSize: number) => sendJSDataStream(connection, data, streamId, chunkSize); + try { await connection.start(); } catch (ex) { diff --git a/src/Components/Web.JS/src/Boot.WebAssembly.ts b/src/Components/Web.JS/src/Boot.WebAssembly.ts index 48bdcc126088..cf153a4a4988 100644 --- a/src/Components/Web.JS/src/Boot.WebAssembly.ts +++ b/src/Components/Web.JS/src/Boot.WebAssembly.ts @@ -153,6 +153,7 @@ function invokeJSFromDotNet(callInfo: Pointer, arg0: any, arg1: any, arg2: any): return result; case DotNet.JSCallResultType.JSObjectReference: return DotNet.createJSObjectReference(result).__jsObjectId; + case DotNet.JSCallResultType.JSStreamReference: default: throw new Error(`Invalid JS call result type '${resultType}'.`); } diff --git a/src/Components/Web.JS/src/GlobalExports.ts b/src/Components/Web.JS/src/GlobalExports.ts index 37c5470eb63c..756e3159665e 100644 --- a/src/Components/Web.JS/src/GlobalExports.ts +++ b/src/Components/Web.JS/src/GlobalExports.ts @@ -48,9 +48,11 @@ interface IBlazor { getLazyAssemblies?: any dotNetCriticalError?: any getSatelliteAssemblies?: any, + sendJSDataStream?: (data: any, streamId: string, chunkSize: number) => void, + // APIs invoked by hot reload applyHotReload?: (id: string, metadataDelta: string, ilDelta: string) => void, - getApplyUpdateCapabilities?: () => string + getApplyUpdateCapabilities?: () => string, } } diff --git a/src/Components/Web.JS/src/InputFile.ts b/src/Components/Web.JS/src/InputFile.ts index 0a29237b664e..8a69fd4e8d97 100644 --- a/src/Components/Web.JS/src/InputFile.ts +++ b/src/Components/Web.JS/src/InputFile.ts @@ -101,9 +101,9 @@ async function ensureArrayBufferReadyForSharedMemoryInterop(elem: InputElement, getFileById(elem, fileId).arrayBuffer = arrayBuffer; } -async function readFileData(elem: InputElement, fileId: number, startOffset: number, count: number): Promise { +async function readFileData(elem: InputElement, fileId: number): Promise { const arrayBuffer = await getArrayBufferFromFileAsync(elem, fileId); - return new Uint8Array(arrayBuffer, startOffset, count); + return new Uint8Array(arrayBuffer); } export function getFileById(elem: InputElement, fileId: number): BrowserFile { diff --git a/src/Components/Web.JS/src/Platform/Circuits/CircuitStreamingInterop.ts b/src/Components/Web.JS/src/Platform/Circuits/CircuitStreamingInterop.ts new file mode 100644 index 000000000000..99d4a6373ee9 --- /dev/null +++ b/src/Components/Web.JS/src/Platform/Circuits/CircuitStreamingInterop.ts @@ -0,0 +1,51 @@ +import { HubConnection } from '@microsoft/signalr'; + +export function sendJSDataStream(connection: HubConnection, data: ArrayBufferView, streamId: string, chunkSize: number) { + // Run the rest in the background, without delaying the completion of the call to sendJSDataStream + // otherwise we'll deadlock (.NET can't begin reading until this completes, but it won't complete + // because nobody's reading the pipe) + setTimeout(async () => { + const maxMillisecondsBetweenAcks = 500; + let numChunksUntilNextAck = 5; + let lastAckTime = new Date().valueOf(); + try { + let position = 0; + let chunkId = 0; + + while (position < data.byteLength) { + const nextChunkSize = Math.min(chunkSize, data.byteLength - position); + const nextChunkData = new Uint8Array(data.buffer, data.byteOffset + position, nextChunkSize); + + numChunksUntilNextAck--; + if (numChunksUntilNextAck > 1) { + // Most of the time just send and buffer within the network layer + await connection.send('ReceiveJSDataChunk', streamId, chunkId, nextChunkData, null); + } else { + // But regularly, wait for an ACK, so other events can be interleaved + // The use of "invoke" (not "send") here is what prevents the JS side from queuing up chunks + // faster than the .NET side can receive them. It means that if there are other user interactions + // while the transfer is in progress, they would get inserted in the middle, so it would be + // possible to navigate away or cancel without first waiting for all the remaining chunks. + const streamIsAlive = await connection.invoke('ReceiveJSDataChunk', streamId, chunkId, nextChunkData, null); + + // Checks to see if we should continue streaming or if the stream has been cancelled/disposed. + if (!streamIsAlive) { + break; + } + + // Estimate the number of chunks we should send before the next ack to achieve the desired + // interactivity rate. + const timeNow = new Date().valueOf(); + const msSinceAck = timeNow - lastAckTime; + lastAckTime = timeNow; + numChunksUntilNextAck = Math.max(1, Math.round(maxMillisecondsBetweenAcks / Math.max(1, msSinceAck))); + } + + position += nextChunkSize; + chunkId++; + } + } catch (error) { + await connection.send('ReceiveJSDataChunk', streamId, -1, null, error.toString()); + } + }, 0); +}; diff --git a/src/Components/Web/src/Forms/InputFile.cs b/src/Components/Web/src/Forms/InputFile.cs index 92b3f5162af3..637366cfa6db 100644 --- a/src/Components/Web/src/Forms/InputFile.cs +++ b/src/Components/Web/src/Forms/InputFile.cs @@ -81,10 +81,10 @@ protected override void BuildRenderTree(RenderTreeBuilder builder) builder.CloseElement(); } - internal Stream OpenReadStream(BrowserFile file, CancellationToken cancellationToken) + internal Stream OpenReadStream(BrowserFile file, long maxAllowedSize, CancellationToken cancellationToken) => _jsUnmarshalledRuntime != null ? - (Stream)new SharedBrowserFileStream(JSRuntime, _jsUnmarshalledRuntime, _inputFileElement, file) : - new RemoteBrowserFileStream(JSRuntime, _inputFileElement, file, Options.Value, cancellationToken); + new SharedBrowserFileStream(JSRuntime, _jsUnmarshalledRuntime, _inputFileElement, file) : + new RemoteBrowserFileStream(JSRuntime, _inputFileElement, file, Options.Value, maxAllowedSize, cancellationToken); internal async ValueTask ConvertToImageFileAsync(BrowserFile file, string format, int maxWidth, int maxHeight) { diff --git a/src/Components/Web/src/Forms/InputFile/BrowserFile.cs b/src/Components/Web/src/Forms/InputFile/BrowserFile.cs index 09b7a54283fc..92f62cabd9ce 100644 --- a/src/Components/Web/src/Forms/InputFile/BrowserFile.cs +++ b/src/Components/Web/src/Forms/InputFile/BrowserFile.cs @@ -44,7 +44,7 @@ public Stream OpenReadStream(long maxAllowedSize = 512000, CancellationToken can throw new IOException($"Supplied file with size {Size} bytes exceeds the maximum of {maxAllowedSize} bytes."); } - return Owner.OpenReadStream(this, cancellationToken); + return Owner.OpenReadStream(this, maxAllowedSize, cancellationToken); } } } diff --git a/src/Components/Web/src/Forms/InputFile/RemoteBrowserFileStream.cs b/src/Components/Web/src/Forms/InputFile/RemoteBrowserFileStream.cs index 2616ecef0ca6..ddbee6e770db 100644 --- a/src/Components/Web/src/Forms/InputFile/RemoteBrowserFileStream.cs +++ b/src/Components/Web/src/Forms/InputFile/RemoteBrowserFileStream.cs @@ -2,9 +2,7 @@ // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. using System; -using System.Buffers; -using System.IO.Pipelines; -using System.Text.Json; +using System.IO; using System.Threading; using System.Threading.Tasks; using Microsoft.JSInterop; @@ -15,118 +13,46 @@ internal class RemoteBrowserFileStream : BrowserFileStream { private readonly IJSRuntime _jsRuntime; private readonly ElementReference _inputFileElement; - private readonly int _maxSegmentSize; - private readonly PipeReader _pipeReader; - private readonly CancellationTokenSource _fillBufferCts; - private readonly TimeSpan _segmentFetchTimeout; + private readonly long _maxAllowedSize; + private readonly CancellationTokenSource _openReadStreamCts; + private readonly Task OpenReadStreamTask; - private bool _isReadingCompleted; private bool _isDisposed; + private CancellationTokenSource? _copyFileDataCts; public RemoteBrowserFileStream( IJSRuntime jsRuntime, ElementReference inputFileElement, BrowserFile file, RemoteBrowserFileStreamOptions options, + long maxAllowedSize, CancellationToken cancellationToken) : base(file) { _jsRuntime = jsRuntime; _inputFileElement = inputFileElement; - _maxSegmentSize = options.MaxSegmentSize; - _segmentFetchTimeout = options.SegmentFetchTimeout; + _maxAllowedSize = maxAllowedSize; + _openReadStreamCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); - var pipe = new Pipe(new PipeOptions(pauseWriterThreshold: options.MaxBufferSize, resumeWriterThreshold: options.MaxBufferSize)); - _pipeReader = pipe.Reader; - _fillBufferCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); - - _ = FillBuffer(pipe.Writer, _fillBufferCts.Token); + OpenReadStreamTask = OpenReadStreamAsync(options, _openReadStreamCts.Token); } - private async Task FillBuffer(PipeWriter writer, CancellationToken cancellationToken) + private async Task OpenReadStreamAsync(RemoteBrowserFileStreamOptions options, CancellationToken cancellationToken) { - long offset = 0; - - while (offset < File.Size) - { - var pipeBuffer = writer.GetMemory(_maxSegmentSize); - var segmentSize = (int)Math.Min(_maxSegmentSize, File.Size - offset); - - try - { - using var readSegmentCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); - readSegmentCts.CancelAfter(_segmentFetchTimeout); - - var bytes = await _jsRuntime.InvokeAsync( - InputFileInterop.ReadFileData, - readSegmentCts.Token, - _inputFileElement, - File.Id, - offset, - segmentSize); - - if (bytes is null || bytes.Length != segmentSize) - { - throw new InvalidOperationException( - $"A segment with size {bytes?.Length ?? 0} bytes was received, but {segmentSize} bytes were expected."); - } + var dataReference = await _jsRuntime.InvokeAsync( + InputFileInterop.ReadFileData, + cancellationToken, + _inputFileElement, + File.Id); - bytes.CopyTo(pipeBuffer); - writer.Advance(segmentSize); - offset += segmentSize; - - var result = await writer.FlushAsync(cancellationToken); - - if (result.IsCompleted) - { - break; - } - } - catch (Exception e) - { - await writer.CompleteAsync(e); - return; - } - } - - await writer.CompleteAsync(); + return await dataReference.OpenReadStreamAsync(_maxAllowedSize, options.MaxBufferSize, cancellationToken); } protected override async ValueTask CopyFileDataIntoBuffer(long sourceOffset, Memory destination, CancellationToken cancellationToken) { - if (_isReadingCompleted) - { - return 0; - } - - int totalBytesCopied = 0; - - while (destination.Length > 0) - { - var result = await _pipeReader.ReadAsync(cancellationToken); - var bytesToCopy = (int)Math.Min(result.Buffer.Length, destination.Length); - - if (bytesToCopy == 0) - { - if (result.IsCompleted) - { - _isReadingCompleted = true; - await _pipeReader.CompleteAsync(); - } - - break; - } - - var slice = result.Buffer.Slice(0, bytesToCopy); - slice.CopyTo(destination.Span); - - _pipeReader.AdvanceTo(slice.End); - - totalBytesCopied += bytesToCopy; - destination = destination.Slice(bytesToCopy); - } - - return totalBytesCopied; + var stream = await OpenReadStreamTask; + _copyFileDataCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); + return await stream.ReadAsync(destination, _copyFileDataCts.Token); } protected override void Dispose(bool disposing) @@ -136,7 +62,8 @@ protected override void Dispose(bool disposing) return; } - _fillBufferCts.Cancel(); + _openReadStreamCts.Cancel(); + _copyFileDataCts?.Cancel(); _isDisposed = true; diff --git a/src/Components/WebAssembly/JSInterop/src/WebAssemblyJSRuntime.cs b/src/Components/WebAssembly/JSInterop/src/WebAssemblyJSRuntime.cs index f35d9335ca79..16d33ed9449b 100644 --- a/src/Components/WebAssembly/JSInterop/src/WebAssemblyJSRuntime.cs +++ b/src/Components/WebAssembly/JSInterop/src/WebAssemblyJSRuntime.cs @@ -101,6 +101,9 @@ internal TResult InvokeUnmarshalled(string identifier, T0 a return exception != null ? throw new JSException(exception) : (TResult)(object)new WebAssemblyJSObjectReference(this, id); + case JSCallResultType.JSStreamReference: + // WebAssembly streaming interop is not presently supported (TODO). Thus we shouldn't see + // a JSCallResultType.JSStreamReference. default: throw new InvalidOperationException($"Invalid result type '{resultType}'."); } diff --git a/src/Components/test/E2ETest/Tests/InputFileTest.cs b/src/Components/test/E2ETest/Tests/InputFileTest.cs index 8073c0dddb5e..c39d785c4c9e 100644 --- a/src/Components/test/E2ETest/Tests/InputFileTest.cs +++ b/src/Components/test/E2ETest/Tests/InputFileTest.cs @@ -16,7 +16,6 @@ using OpenQA.Selenium.Support.Extensions; using Xunit; using Xunit.Abstractions; -using System.Threading.Tasks; namespace Microsoft.AspNetCore.Components.E2ETest.Tests { diff --git a/src/Components/test/E2ETest/Tests/InteropTest.cs b/src/Components/test/E2ETest/Tests/InteropTest.cs index ee091576caeb..a9f1340db565 100644 --- a/src/Components/test/E2ETest/Tests/InteropTest.cs +++ b/src/Components/test/E2ETest/Tests/InteropTest.cs @@ -63,6 +63,10 @@ public void CanInvokeDotNetMethods() ["roundTripByteArrayWrapperObjectAsyncFromJS"] = @"{""strVal"":""Some string"",""byteArrayVal"":{""0"":1,""1"":5,""2"":7,""3"":17,""4"":200,""5"":138},""intVal"":42}", ["roundTripByteArrayAsyncFromDotNet"] = @"1,5,7,15,35,200", ["roundTripByteArrayWrapperObjectAsyncFromDotNet"] = @"StrVal: Some String, IntVal: 100000, ByteArrayVal: 1,5,7,15,35,200", + ["jsToDotNetStreamReturnValueAsync"] = "Success", + ["jsToDotNetStreamWrapperObjectReturnValueAsync"] = "Success", + ["jsToDotNetStreamParameterAsync"] = @"""Success""", + ["jsToDotNetStreamWrapperObjectParameterAsync"] = @"""Success""", ["AsyncThrowSyncException"] = @"""System.InvalidOperationException: Threw a sync exception!", ["AsyncThrowAsyncException"] = @"""System.InvalidOperationException: Threw an async exception!", ["SyncExceptionFromAsyncMethod"] = "Function threw a sync exception!", diff --git a/src/Components/test/testassets/BasicTestApp/InteropComponent.razor b/src/Components/test/testassets/BasicTestApp/InteropComponent.razor index b80b32ccccb6..c2aafa5f67ad 100644 --- a/src/Components/test/testassets/BasicTestApp/InteropComponent.razor +++ b/src/Components/test/testassets/BasicTestApp/InteropComponent.razor @@ -2,6 +2,8 @@ @using BasicTestApp.InteropTest @using System.Runtime.InteropServices @using System.Text.Json +@using System.IO +@using static BasicTestApp.InteropTest.JSStreamReferenceInterop @inject IJSRuntime JSRuntime @@ -175,10 +177,69 @@ ReturnValues["roundTripByteArrayWrapperObjectFromDotNet"] = ((IJSInProcessRuntime)JSRuntime).Invoke("roundTripByteArrayWrapperObject", byteArrayWrapperObject).ToString(); } + // Streaming interop tests need to be run only for Blazor server + // As such, we set the results to the expected result for WASM + if (shouldSupportSyncInterop) + { + // In the WASM case, setting the result to the expected result ensures the missing test case doesn't result in test failure. + ReturnValues["jsToDotNetStreamReturnValueAsync"] = "Success"; + ReturnValues["jsToDotNetStreamWrapperObjectReturnValueAsync"] = "Success"; + } + else + { + // Proceed to run the actual blazor server streaming interop tests + + // Test: jsToDotNetStreamReturnValueAsync + var dataReference = await JSRuntime.InvokeAsync("jsToDotNetStreamReturnValueAsync"); + using var dataReferenceStream = await dataReference.OpenReadStreamAsync(); + await ValidateStreamValuesAsync("jsToDotNetStreamReturnValueAsync", dataReferenceStream); + + // Test: jsToDotNetStreamWrapperObjectReturnValueAsync + var dataWrapperReference = await JSRuntime.InvokeAsync("jsToDotNetStreamWrapperObjectReturnValueAsync"); + if (dataWrapperReference.StrVal != "SomeStr") + { + ReturnValues["jsToDotNetStreamWrapperObjectReturnValueAsync"] = $"StrVal did not match expected 'SomeStr', received {dataWrapperReference.StrVal}."; + } + else if (dataWrapperReference.IntVal != 5) + { + ReturnValues["jsToDotNetStreamWrapperObjectReturnValueAsync"] = $"IntVal did not match expected '5', received {dataWrapperReference.IntVal}."; + } + else + { + using var dataWrapperReferenceStream = await dataWrapperReference.JSStreamReferenceVal.OpenReadStreamAsync(); + await ValidateStreamValuesAsync("jsToDotNetStreamWrapperObjectReturnValueAsync", dataWrapperReferenceStream); + } + } + Invocations = invocations; DoneWithInterop = true; } + private async Task ValidateStreamValuesAsync(string testName, Stream stream) + { + using var memoryStream = new System.IO.MemoryStream(); + await stream.CopyToAsync(memoryStream); + var buffer = memoryStream.ToArray(); + + for (var i = 0; i < buffer.Length; i++) + { + var expectedValue = i % 256; + if (buffer[i] != expectedValue) + { + ReturnValues[testName] = $"Failure at index {i}."; + break; + } + } + + if (buffer.Length != 100_000) + { + ReturnValues[testName] = $"Failure, got a stream of length {buffer.Length}, expected a length of 100,000."; + } + + // Mark the test as successful if we haven't already set a failure above + ReturnValues.TryAdd(testName, "Success"); + } + public void InvokeInProcessInterop() { var inProcRuntime = ((IJSInProcessRuntime)JSRuntime); diff --git a/src/Components/test/testassets/BasicTestApp/InteropTest/JSStreamReferenceInterop.cs b/src/Components/test/testassets/BasicTestApp/InteropTest/JSStreamReferenceInterop.cs new file mode 100644 index 000000000000..c47a07557f09 --- /dev/null +++ b/src/Components/test/testassets/BasicTestApp/InteropTest/JSStreamReferenceInterop.cs @@ -0,0 +1,71 @@ +// Copyright (c) .NET Foundation. All rights reserved. +// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. + +using System.IO; +using System.Text.Json.Serialization; +using System.Threading.Tasks; +using Microsoft.JSInterop; + +namespace BasicTestApp.InteropTest +{ + public class JSStreamReferenceInterop + { + [JSInvokable] + public static async Task JSToDotNetStreamParameterAsync(IJSStreamReference jsStreamReference) + { + using var dataReferenceStream = await jsStreamReference.OpenReadStreamAsync(); + return await ValidateStreamValuesAsync(dataReferenceStream); + } + + [JSInvokable] + public static async Task JSToDotNetStreamWrapperObjectParameterAsync(JSStreamReferenceWrapper jsStreamReferenceWrapper) + { + if (jsStreamReferenceWrapper.StrVal != "SomeStr") + { + return $"StrVal did not match expected 'SomeStr', received {jsStreamReferenceWrapper.StrVal}."; + } + else if (jsStreamReferenceWrapper.IntVal != 5) + { + return $"IntVal did not match expected '5', received {jsStreamReferenceWrapper.IntVal}."; + } + else + { + using var dataWrapperReferenceStream = await jsStreamReferenceWrapper.JSStreamReferenceVal.OpenReadStreamAsync(); + return await ValidateStreamValuesAsync(dataWrapperReferenceStream); + } + } + + private static async Task ValidateStreamValuesAsync(Stream stream) + { + using var memoryStream = new MemoryStream(); + await stream.CopyToAsync(memoryStream); + var buffer = memoryStream.ToArray(); + + for (var i = 0; i < buffer.Length; i++) + { + var expectedValue = i % 256; + if (buffer[i] != expectedValue) + { + return $"Failure at index {i}."; + } + } + + if (buffer.Length != 100_000) + { + return $"Failure, got a stream of length {buffer.Length}, expected a length of 100,000."; + } + + return "Success"; + } + + public class JSStreamReferenceWrapper + { + public string StrVal { get; set; } + + [JsonPropertyName("jsStreamReferenceVal")] + public IJSStreamReference JSStreamReferenceVal { get; set; } + + public int IntVal { get; set; } + } + } +} diff --git a/src/Components/test/testassets/BasicTestApp/wwwroot/js/jsinteroptests.js b/src/Components/test/testassets/BasicTestApp/wwwroot/js/jsinteroptests.js index 9d1fdbd2ed66..ec639e1026f0 100644 --- a/src/Components/test/testassets/BasicTestApp/wwwroot/js/jsinteroptests.js +++ b/src/Components/test/testassets/BasicTestApp/wwwroot/js/jsinteroptests.js @@ -104,6 +104,19 @@ async function invokeDotNetInteropMethodsAsync(shouldSupportSyncInterop, dotNetO var returnedByteArrayWrapper = await DotNet.invokeMethodAsync(assemblyName, 'RoundTripByteArrayWrapperObjectAsync', byteArrayWrapper); results['roundTripByteArrayWrapperObjectAsyncFromJS'] = returnedByteArrayWrapper; + if (shouldSupportSyncInterop) { + results['jsToDotNetStreamParameterAsync'] = "Success"; + results['jsToDotNetStreamWrapperObjectParameterAsync'] = "Success"; + } else { + const largeArray = Array.from({ length: 100000 }).map((_, index) => index % 256); + const largeByteArray = new Uint8Array(largeArray); + const jsStreamReference = DotNet.createJSStreamReference(largeByteArray); + results['jsToDotNetStreamParameterAsync'] = await DotNet.invokeMethodAsync(assemblyName, 'JSToDotNetStreamParameterAsync', jsStreamReference); + + var streamWrapper = { 'strVal': "SomeStr", 'jsStreamReferenceVal': jsStreamReference, 'intVal': 5 }; + results['jsToDotNetStreamWrapperObjectParameterAsync'] = await DotNet.invokeMethodAsync(assemblyName, 'JSToDotNetStreamWrapperObjectParameterAsync', streamWrapper); + } + const instanceMethodAsync = await instanceMethodsTarget.invokeMethodAsync('InstanceMethodAsync', { stringValue: 'My string', dtoByRef: dotNetObjectByRef @@ -260,6 +273,27 @@ function roundTripByteArrayWrapperObject(byteArrayWrapperObject) { return byteArrayWrapperObject; } +function jsToDotNetStreamReturnValueAsync() { + return new Promise((resolve, reject) => { + setTimeout(function () { + const largeArray = Array.from({ length: 100000 }).map((_, index) => index % 256); + resolve(new Uint8Array(largeArray)); + }, 100); + }); +} + +function jsToDotNetStreamWrapperObjectReturnValueAsync() { + return new Promise((resolve, reject) => { + setTimeout(function () { + const largeArray = Array.from({ length: 100000 }).map((_, index) => index % 256); + const byteArray = new Uint8Array(largeArray); + const jsStreamReference = DotNet.createJSStreamReference(byteArray); + const returnValue = { strVal: 'SomeStr', intVal: 5, jsStreamReferenceVal: jsStreamReference } + resolve(returnValue); + }, 100); + }); +} + function roundTripByteArrayWrapperObjectAsync(byteArrayWrapperObject) { return new Promise((resolve, reject) => { setTimeout(function () { diff --git a/src/JSInterop/Microsoft.JSInterop.JS/src/src/Microsoft.JSInterop.ts b/src/JSInterop/Microsoft.JSInterop.JS/src/src/Microsoft.JSInterop.ts index c45b09fb70fd..dc8c6421266c 100644 --- a/src/JSInterop/Microsoft.JSInterop.JS/src/src/Microsoft.JSInterop.ts +++ b/src/JSInterop/Microsoft.JSInterop.JS/src/src/Microsoft.JSInterop.ts @@ -49,6 +49,7 @@ export module DotNet { } const jsObjectIdKey = "__jsObjectId"; + const jsStreamReferenceLengthKey = "__jsStreamReferenceLength"; const pendingAsyncCalls: { [id: number]: PendingAsyncCall } = {}; const windowJSObjectId = 0; @@ -138,6 +139,36 @@ export module DotNet { } } + /** + * Creates a JavaScript data reference that can be passed to .NET via interop calls. + * + * @param arrayBufferView The ArrayBufferView used to create the JavaScript stream reference. + * @returns The JavaScript data reference (this will be the same instance as the given object). + * @throws Error if the given value is not an Object or doesn't have a valid byteLength. + */ + export function createJSStreamReference(arrayBufferView: ArrayBufferView | any): any { + // Check if this is an ArrayBufferView, and if it has a valid byteLength for transfer + // using a JSStreamReference. + if (!(arrayBufferView.buffer instanceof ArrayBuffer)) { + throw new Error(`Cannot create a JSStreamReference from the value '${arrayBufferView}' as it is not have a 'buffer' property of type 'ArrayBuffer'.`); + } else if (arrayBufferView.byteLength === undefined) { + throw new Error(`Cannot create a JSStreamReference from the value '${arrayBufferView}' as it doesn't have a byteLength.`); + } + + const result: any = { + [jsStreamReferenceLengthKey]: arrayBufferView.byteLength, + } + + try { + const jsObjectReference = createJSObjectReference(arrayBufferView); + result[jsObjectIdKey] = jsObjectReference[jsObjectIdKey]; + } catch { + throw new Error(`Cannot create a JSStreamReference from the value '${arrayBufferView}'.`); + } + + return result; + } + /** * Disposes the given JavaScript object reference. * @@ -231,7 +262,8 @@ export module DotNet { */ export enum JSCallResultType { Default = 0, - JSObjectReference = 1 + JSObjectReference = 1, + JSStreamReference = 2, } /** @@ -446,6 +478,8 @@ export module DotNet { return returnValue; case JSCallResultType.JSObjectReference: return createJSObjectReference(returnValue); + case JSCallResultType.JSStreamReference: + return createJSStreamReference(returnValue); default: throw new Error(`Invalid JS call result type '${resultType}'.`); } diff --git a/src/JSInterop/Microsoft.JSInterop/src/IJSStreamReference.cs b/src/JSInterop/Microsoft.JSInterop/src/IJSStreamReference.cs new file mode 100644 index 000000000000..4cf01b5763f5 --- /dev/null +++ b/src/JSInterop/Microsoft.JSInterop/src/IJSStreamReference.cs @@ -0,0 +1,30 @@ +// Copyright (c) .NET Foundation. All rights reserved. +// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. + +using System; +using System.IO; +using System.Threading; +using System.Threading.Tasks; + +namespace Microsoft.JSInterop +{ + /// + /// Represents a reference to JavaScript data to be consumed through a . + /// + public interface IJSStreamReference : IAsyncDisposable + { + /// + /// Length of the provided by JavaScript. + /// + public long Length { get; } + + /// + /// Opens a with the for the current data reference. + /// + /// Maximum number of bytes permitted to be read from JavaScript. + /// Maximum number of bytes that are allowed to be buffered. + /// for cancelling read. + /// which can provide data associated with the current data reference. + ValueTask OpenReadStreamAsync(long maxAllowedSize = 512000, long maxBufferSize = 100 * 1024, CancellationToken cancellationToken = default); + } +} diff --git a/src/JSInterop/Microsoft.JSInterop/src/Implementation/JSObjectReferenceJsonWorker.cs b/src/JSInterop/Microsoft.JSInterop/src/Implementation/JSObjectReferenceJsonWorker.cs index c22f60a17056..352d64618543 100644 --- a/src/JSInterop/Microsoft.JSInterop/src/Implementation/JSObjectReferenceJsonWorker.cs +++ b/src/JSInterop/Microsoft.JSInterop/src/Implementation/JSObjectReferenceJsonWorker.cs @@ -1,34 +1,35 @@ // Copyright (c) .NET Foundation. All rights reserved. // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. +using System; using System.Text.Json; namespace Microsoft.JSInterop.Implementation { /// - /// Used by JsonConverters to read or write a IJSObjectReference instance. + /// Used by JsonConverters to read or write a instance. /// /// This type is part of ASP.NET Core's internal infrastructure and is not recommended for use by external code. /// /// public static class JSObjectReferenceJsonWorker { - private static readonly JsonEncodedText _idKey = JsonEncodedText.Encode("__jsObjectId"); + internal static readonly JsonEncodedText JSObjectIdKey = JsonEncodedText.Encode("__jsObjectId"); /// /// Reads the id for a instance. /// /// The - /// + /// The deserialized id for the . public static long ReadJSObjectReferenceIdentifier(ref Utf8JsonReader reader) { - long id = -1; + long? id = null; while (reader.Read() && reader.TokenType != JsonTokenType.EndObject) { if (reader.TokenType == JsonTokenType.PropertyName) { - if (id == -1 && reader.ValueTextEquals(_idKey.EncodedUtf8Bytes)) + if (id is null && reader.ValueTextEquals(JSObjectIdKey.EncodedUtf8Bytes)) { reader.Read(); id = reader.GetInt64(); @@ -44,12 +45,12 @@ public static long ReadJSObjectReferenceIdentifier(ref Utf8JsonReader reader) } } - if (id == -1) + if (!id.HasValue) { - throw new JsonException($"Required property {_idKey} not found."); + throw new JsonException($"Required property {JSObjectIdKey} not found."); } - return id; + return id.Value; } /// @@ -60,7 +61,7 @@ public static long ReadJSObjectReferenceIdentifier(ref Utf8JsonReader reader) public static void WriteJSObjectReference(Utf8JsonWriter writer, JSObjectReference objectReference) { writer.WriteStartObject(); - writer.WriteNumber(_idKey, objectReference.Id); + writer.WriteNumber(JSObjectIdKey, objectReference.Id); writer.WriteEndObject(); } } diff --git a/src/JSInterop/Microsoft.JSInterop/src/Implementation/JSStreamReference.cs b/src/JSInterop/Microsoft.JSInterop/src/Implementation/JSStreamReference.cs new file mode 100644 index 000000000000..269bcc9f87d8 --- /dev/null +++ b/src/JSInterop/Microsoft.JSInterop/src/Implementation/JSStreamReference.cs @@ -0,0 +1,49 @@ +// Copyright (c) .NET Foundation. All rights reserved. +// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. + +using System; +using System.IO; +using System.Threading; +using System.Threading.Tasks; + +namespace Microsoft.JSInterop.Implementation +{ + /// + /// Implements functionality for . + /// + public sealed class JSStreamReference : JSObjectReference, IJSStreamReference + { + private readonly JSRuntime _jsRuntime; + + /// + public long Length { get; } + + /// + /// Inititializes a new instance. + /// + /// The used for invoking JS interop calls. + /// The unique identifier. + /// The length of the data stream coming from JS represented by this data reference. + internal JSStreamReference(JSRuntime jsRuntime, long id, long totalLength) : base(jsRuntime, id) + { + if (totalLength <= 0) + { + throw new ArgumentOutOfRangeException(nameof(totalLength), totalLength, "Length must be a positive value."); + } + + _jsRuntime = jsRuntime; + Length = totalLength; + } + + /// + async ValueTask IJSStreamReference.OpenReadStreamAsync(long maxLength, long maxBufferSize, CancellationToken cancellationToken) + { + if (Length > maxLength) + { + throw new ArgumentOutOfRangeException(nameof(maxLength), $"The incoming data stream of length {Length} exceeds the maximum length {maxLength}."); + } + + return await _jsRuntime.ReadJSDataAsStreamAsync(this, Length, maxBufferSize, cancellationToken); + } + } +} diff --git a/src/JSInterop/Microsoft.JSInterop/src/Infrastructure/JSStreamReferenceJsonConverter.cs b/src/JSInterop/Microsoft.JSInterop/src/Infrastructure/JSStreamReferenceJsonConverter.cs new file mode 100644 index 000000000000..0f28bafdee70 --- /dev/null +++ b/src/JSInterop/Microsoft.JSInterop/src/Infrastructure/JSStreamReferenceJsonConverter.cs @@ -0,0 +1,73 @@ +// Copyright (c) .NET Foundation. All rights reserved. +// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. + +using System; +using System.Text.Json; +using System.Text.Json.Serialization; +using Microsoft.JSInterop.Implementation; + +namespace Microsoft.JSInterop.Infrastructure +{ + internal sealed class JSStreamReferenceJsonConverter : JsonConverter + { + private static readonly JsonEncodedText _jsStreamReferenceLengthKey = JsonEncodedText.Encode("__jsStreamReferenceLength"); + + private readonly JSRuntime _jsRuntime; + + public JSStreamReferenceJsonConverter(JSRuntime jsRuntime) + { + _jsRuntime = jsRuntime; + } + + public override bool CanConvert(Type typeToConvert) + => typeToConvert == typeof(IJSStreamReference) || typeToConvert == typeof(JSStreamReference); + + public override IJSStreamReference? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) + { + long? id = null; + long? length = null; + + while (reader.Read() && reader.TokenType != JsonTokenType.EndObject) + { + if (reader.TokenType == JsonTokenType.PropertyName) + { + if (id is null && reader.ValueTextEquals(JSObjectReferenceJsonWorker.JSObjectIdKey.EncodedUtf8Bytes)) + { + reader.Read(); + id = reader.GetInt64(); + } + else if (length is null && reader.ValueTextEquals(_jsStreamReferenceLengthKey.EncodedUtf8Bytes)) + { + reader.Read(); + length = reader.GetInt64(); + } + else + { + throw new JsonException($"Unexcepted JSON property {reader.GetString()}."); + } + } + else + { + throw new JsonException($"Unexcepted JSON token {reader.TokenType}"); + } + } + + if (!id.HasValue) + { + throw new JsonException($"Required property {JSObjectReferenceJsonWorker.JSObjectIdKey} not found."); + } + + if (!length.HasValue) + { + throw new JsonException($"Required property {_jsStreamReferenceLengthKey} not found."); + } + + return new JSStreamReference(_jsRuntime, id.Value, length.Value); + } + + public override void Write(Utf8JsonWriter writer, IJSStreamReference value, JsonSerializerOptions options) + { + JSObjectReferenceJsonWorker.WriteJSObjectReference(writer, (JSStreamReference)value); + } + } +} diff --git a/src/JSInterop/Microsoft.JSInterop/src/JSCallResultType.cs b/src/JSInterop/Microsoft.JSInterop/src/JSCallResultType.cs index 1268113dc71f..723d2b7f8644 100644 --- a/src/JSInterop/Microsoft.JSInterop/src/JSCallResultType.cs +++ b/src/JSInterop/Microsoft.JSInterop/src/JSCallResultType.cs @@ -17,5 +17,10 @@ public enum JSCallResultType : int /// Indicates that the returned value is to be treated as a JS object reference. /// JSObjectReference = 1, + + /// + /// Indicates that the returned value is to be treated as a JS data reference. + /// + JSStreamReference = 2, } } diff --git a/src/JSInterop/Microsoft.JSInterop/src/JSRuntime.cs b/src/JSInterop/Microsoft.JSInterop/src/JSRuntime.cs index d78bc15d3a5f..389166ab9b40 100644 --- a/src/JSInterop/Microsoft.JSInterop/src/JSRuntime.cs +++ b/src/JSInterop/Microsoft.JSInterop/src/JSRuntime.cs @@ -5,6 +5,7 @@ using System.Collections.Concurrent; using System.Diagnostics; using System.Diagnostics.CodeAnalysis; +using System.IO; using System.Text.Json; using System.Threading; using System.Threading.Tasks; @@ -40,7 +41,8 @@ protected JSRuntime() { new DotNetObjectReferenceJsonConverterFactory(this), new JSObjectReferenceJsonConverter(this), - new ByteArrayJsonConverter(this) + new JSStreamReferenceJsonConverter(this), + new ByteArrayJsonConverter(this), } }; } @@ -208,6 +210,24 @@ protected internal virtual void ReceiveByteArray(int id, byte[] data) ByteArraysToBeRevived.Append(data); } + /// + /// Provides a for the data reference represented by . + /// + /// to produce a data stream for. + /// Expected length of the incoming data stream. + /// Amount of bytes to buffer before flushing. + /// for cancelling read. + /// for the data reference represented by . + protected internal virtual Task ReadJSDataAsStreamAsync(IJSStreamReference jsStreamReference, long totalLength, long maxBufferSize, CancellationToken cancellationToken) + { + // The reason it's virtual and not abstract is just for back-compat + + // JSRuntime subclasses should override this method, and implement their own system for returning a Stream + // representing the contents of the IJSObjectReference (whose value on the JS side will be an ArrayBufferLike). + // The transport mechanism will be completely different between, say, Server and WebAssembly. + throw new NotSupportedException("The current JavaScript runtime does not support reading data streams."); + } + [UnconditionalSuppressMessage("ReflectionAnalysis", "IL2072:RequiresUnreferencedCode", Justification = "We enforce trimmer attributes for JSON deserialized types on InvokeAsync.")] internal void EndInvokeJS(long taskId, bool succeeded, ref Utf8JsonReader jsonReader) { diff --git a/src/JSInterop/Microsoft.JSInterop/src/PublicAPI.Unshipped.txt b/src/JSInterop/Microsoft.JSInterop/src/PublicAPI.Unshipped.txt index d68c6101dc40..e1e22df85d77 100644 --- a/src/JSInterop/Microsoft.JSInterop/src/PublicAPI.Unshipped.txt +++ b/src/JSInterop/Microsoft.JSInterop/src/PublicAPI.Unshipped.txt @@ -1,6 +1,12 @@ #nullable enable +Microsoft.JSInterop.IJSStreamReference +Microsoft.JSInterop.IJSStreamReference.Length.get -> long +Microsoft.JSInterop.IJSStreamReference.OpenReadStreamAsync(long maxAllowedSize = 512000, long maxBufferSize = 102400, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) -> System.Threading.Tasks.ValueTask +Microsoft.JSInterop.Implementation.JSStreamReference +Microsoft.JSInterop.Implementation.JSStreamReference.Length.get -> long Microsoft.JSInterop.Implementation.JSObjectReferenceJsonWorker Microsoft.JSInterop.Infrastructure.DotNetInvocationResult.ResultJson.get -> string? +Microsoft.JSInterop.JSCallResultType.JSStreamReference = 2 -> Microsoft.JSInterop.JSCallResultType Microsoft.JSInterop.JSRuntime.Dispose() -> void static Microsoft.JSInterop.Implementation.JSObjectReferenceJsonWorker.ReadJSObjectReferenceIdentifier(ref System.Text.Json.Utf8JsonReader reader) -> long static Microsoft.JSInterop.Implementation.JSObjectReferenceJsonWorker.WriteJSObjectReference(System.Text.Json.Utf8JsonWriter! writer, Microsoft.JSInterop.Implementation.JSObjectReference! objectReference) -> void @@ -30,6 +36,7 @@ static Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(this Microsoft.JS static Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(this Microsoft.JSInterop.IJSRuntime! jsRuntime, string! identifier, System.TimeSpan timeout, params object?[]? args) -> System.Threading.Tasks.ValueTask *REMOVED*static Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(this Microsoft.JSInterop.IJSRuntime! jsRuntime, string! identifier, params object![]! args) -> System.Threading.Tasks.ValueTask static Microsoft.JSInterop.JSRuntimeExtensions.InvokeVoidAsync(this Microsoft.JSInterop.IJSRuntime! jsRuntime, string! identifier, params object?[]? args) -> System.Threading.Tasks.ValueTask +virtual Microsoft.JSInterop.JSRuntime.ReadJSDataAsStreamAsync(Microsoft.JSInterop.IJSStreamReference! jsStreamReference, long totalLength, long maxBufferSize, System.Threading.CancellationToken cancellationToken) -> System.Threading.Tasks.Task! virtual Microsoft.JSInterop.JSRuntime.ReceiveByteArray(int id, byte[]! data) -> void virtual Microsoft.JSInterop.JSRuntime.SendByteArray(int id, byte[]! data) -> void Microsoft.JSInterop.JSDisconnectedException diff --git a/src/JSInterop/Microsoft.JSInterop/test/Infrastructure/JSStreamReferenceJsonConverterTest.cs b/src/JSInterop/Microsoft.JSInterop/test/Infrastructure/JSStreamReferenceJsonConverterTest.cs new file mode 100644 index 000000000000..1b12dc4de9e4 --- /dev/null +++ b/src/JSInterop/Microsoft.JSInterop/test/Infrastructure/JSStreamReferenceJsonConverterTest.cs @@ -0,0 +1,123 @@ +// Copyright (c) .NET Foundation. All rights reserved. +// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. + +using System; +using System.Text.Json; +using Microsoft.JSInterop.Implementation; +using Xunit; + +namespace Microsoft.JSInterop.Infrastructure +{ + public class JSStreamReferenceJsonConverterTest + { + private readonly JSRuntime JSRuntime = new TestJSRuntime(); + private readonly JsonSerializerOptions JsonSerializerOptions; + + public JSStreamReferenceJsonConverterTest() + { + JsonSerializerOptions = JSRuntime.JsonSerializerOptions; + JsonSerializerOptions.Converters.Add(new JSStreamReferenceJsonConverter(JSRuntime)); + } + + [Fact] + public void Read_Throws_IfJsonIsMissingJSObjectIdProperty() + { + // Arrange + var json = "{}"; + + // Act & Assert + var ex = Assert.Throws(() => JsonSerializer.Deserialize(json, JsonSerializerOptions)); + Assert.Equal("Required property __jsObjectId not found.", ex.Message); + } + + [Fact] + public void Read_Throws_IfJsonContainsUnknownContent() + { + // Arrange + var json = "{\"foo\":2}"; + + // Act & Assert + var ex = Assert.Throws(() => JsonSerializer.Deserialize(json, JsonSerializerOptions)); + Assert.Equal("Unexcepted JSON property foo.", ex.Message); + } + + [Fact] + public void Read_Throws_IfJsonIsIncomplete() + { + // Arrange + var json = $"{{\"__jsObjectId\":5"; + + // Act & Assert + var ex = Record.Exception(() => JsonSerializer.Deserialize(json, JsonSerializerOptions)); + Assert.IsAssignableFrom(ex); + } + + [Fact] + public void Read_Throws_IfJSObjectIdAppearsMultipleTimes() + { + // Arrange + var json = $"{{\"__jsObjectId\":3,\"__jsObjectId\":7}}"; + + // Act & Assert + var ex = Record.Exception(() => JsonSerializer.Deserialize(json, JsonSerializerOptions)); + Assert.IsAssignableFrom(ex); + } + + [Fact] + public void Read_Throws_IfLengthNotProvided() + { + // Arrange + var expectedId = 3; + var json = $"{{\"__jsObjectId\":{expectedId}}}"; + + // Act & Assert + var ex = Assert.Throws(() => JsonSerializer.Deserialize(json, JsonSerializerOptions)); + Assert.Equal("Required property __jsStreamReferenceLength not found.", ex.Message); + } + + [Fact] + public void Read_ReadsJson_IJSStreamReference() + { + // Arrange + var expectedId = 3; + var expectedLength = 5; + var json = $"{{\"__jsObjectId\":{expectedId}, \"__jsStreamReferenceLength\":{expectedLength}}}"; + + // Act + var deserialized = (JSStreamReference)JsonSerializer.Deserialize(json, JsonSerializerOptions)!; + + // Assert + Assert.Equal(expectedId, deserialized?.Id); + Assert.Equal(expectedLength, deserialized?.Length); + } + + [Fact] + public void Read_ReadsJson_IJSStreamReferenceReverseOrder() + { + // Arrange + var expectedId = 3; + var expectedLength = 5; + var json = $"{{\"__jsStreamReferenceLength\":{expectedLength}, \"__jsObjectId\":{expectedId}}}"; + + // Act + var deserialized = (JSStreamReference)JsonSerializer.Deserialize(json, JsonSerializerOptions)!; + + // Assert + Assert.Equal(expectedId, deserialized?.Id); + Assert.Equal(expectedLength, deserialized?.Length); + } + + [Fact] + public void Write_WritesValidJson() + { + // Arrange + var jsObjectRef = new JSStreamReference(JSRuntime, 7, 10); + + // Act + var json = JsonSerializer.Serialize((IJSStreamReference)jsObjectRef, JsonSerializerOptions); + + // Assert + Assert.Equal($"{{\"__jsObjectId\":{jsObjectRef.Id}}}", json); + } + } +} diff --git a/src/JSInterop/Microsoft.JSInterop/test/JSRuntimeTest.cs b/src/JSInterop/Microsoft.JSInterop/test/JSRuntimeTest.cs index d77241e970b8..f887055564ac 100644 --- a/src/JSInterop/Microsoft.JSInterop/test/JSRuntimeTest.cs +++ b/src/JSInterop/Microsoft.JSInterop/test/JSRuntimeTest.cs @@ -9,6 +9,7 @@ using System.Text.Json; using System.Threading; using System.Threading.Tasks; +using Microsoft.JSInterop.Implementation; using Microsoft.JSInterop.Infrastructure; using Xunit; @@ -395,6 +396,20 @@ public void ReceiveByteArray_ThrowsExceptionIfUnexpectedId() Assert.Equal("Element id '7' cannot be added to the byte arrays to be revived with length '2'.", ex.Message); } + [Fact] + public async void ReadJSDataAsStreamAsync_ThrowsNotSupportedException() + { + // Arrange + var runtime = new TestJSRuntime(); + var dataReference = new JSStreamReference(runtime, 10, 10); + + // Act + var exception = await Assert.ThrowsAsync(async () => await runtime.ReadJSDataAsStreamAsync(dataReference, 10, 10, CancellationToken.None)); + + // Assert + Assert.Equal("The current JavaScript runtime does not support reading data streams.", exception.Message); + } + private class JSError { public DotNetInvocationInfo InvocationInfo { get; set; } diff --git a/src/Shared/JSInterop/JSCallResultTypeHelper.cs b/src/Shared/JSInterop/JSCallResultTypeHelper.cs index 8bf1a547fc1b..591a01b07e62 100644 --- a/src/Shared/JSInterop/JSCallResultTypeHelper.cs +++ b/src/Shared/JSInterop/JSCallResultTypeHelper.cs @@ -19,6 +19,10 @@ public static JSCallResultType FromGeneric() { return JSCallResultType.JSObjectReference; } + else if (typeof(TResult).Assembly == _currentAssembly && typeof(TResult) == typeof(IJSStreamReference)) + { + return JSCallResultType.JSStreamReference; + } else { return JSCallResultType.Default;