public async Task ExecuteAsync(Uri uri)
{
string circuitId = await GetPrerenderedCircuitId(uri);
var builder = new HubConnectionBuilder();
builder.Services.TryAddEnumerable(ServiceDescriptor.Singleton <IHubProtocol, IgnitorMessagePackHubProtocol>());
builder.WithUrl(new Uri(uri, "_blazor/"));
builder.ConfigureLogging(l => l.AddConsole().SetMinimumLevel(LogLevel.Trace));
var hive = new ElementHive();
await using var connection = builder.Build();
await connection.StartAsync(CancellationToken);
Console.WriteLine("Connected");
connection.On <int, string, string>("JS.BeginInvokeJS", OnBeginInvokeJS);
connection.On <int, int, byte[]>("JS.RenderBatch", OnRenderBatch);
connection.On <Error>("JS.OnError", OnError);
connection.Closed += OnClosedAsync;
// Now everything is registered so we can start the circuit.
var success = await connection.InvokeAsync <bool>("ConnectCircuit", circuitId);
await TaskCompletionSource.Task;
void OnBeginInvokeJS(int asyncHandle, string identifier, string argsJson)
{
Console.WriteLine("JS Invoke: " + identifier + " (" + argsJson + ")");
}
void OnRenderBatch(int browserRendererId, int batchId, byte[] batchData)
{
var batch = RenderBatchReader.Read(batchData);
hive.Update(batch);
// This will click the Counter component repeatedly resulting in infinite requests.
_ = ClickAsync("thecounter", hive, connection);
}
void OnError(Error error)
{
Console.WriteLine("ERROR: " + error.Stack);
}
Task OnClosedAsync(Exception ex)
{
if (ex == null)
{
TaskCompletionSource.TrySetResult(null);
}
else
{
TaskCompletionSource.TrySetException(ex);
}
return(Task.CompletedTask);
}
}
private void OnRenderBatch(int batchId, byte[] batchData)
{
RenderBatchReceived?.Invoke(batchId, batchData);
var batch = RenderBatchReader.Read(batchData);
Hive.Update(batch);
if (ConfirmRenderBatch)
{
_ = ConfirmBatch(batchId);
}
NextBatchReceived?.Completion?.TrySetResult(null);
}
private void OnRenderBatch(int id, byte[] data)
{
var capturedBatch = new CapturedRenderBatch(id, data);
Operations?.Batches.Enqueue(capturedBatch);
RenderBatchReceived?.Invoke(capturedBatch);
var batch = RenderBatchReader.Read(data);
Hive.Update(batch);
if (ConfirmRenderBatch)
{
_ = ConfirmBatch(id);
}
NextBatchReceived?.Completion?.TrySetResult(null);
}
private void OnRenderBatch(int browserRendererId, int batchId, byte[] batchData)
{
try
{
RenderBatchReceived?.Invoke(browserRendererId, batchId, batchData);
var batch = RenderBatchReader.Read(batchData);
Hive.Update(batch);
if (ConfirmRenderBatch)
{
_ = ConfirmBatch(batchId);
}
NextBatchReceived?.Completion?.TrySetResult(null);
}
catch (Exception e)
{
NextBatchReceived?.Completion?.TrySetResult(e);
}
}
private void OnRenderBatch(int browserRendererId, int batchId, byte[] batchData)
{
try
{
RenderBatchReceived?.Invoke(browserRendererId, batchId, batchData);
var batch = RenderBatchReader.Read(batchData);
Hive.Update(batch);
if (ConfirmRenderBatch)
{
HubConnection.InvokeAsync("OnRenderCompleted", batchId, /* error */ null);
}
NextBatchReceived?.Completion?.TrySetResult(null);
}
catch (Exception e)
{
NextBatchReceived?.Completion?.TrySetResult(e);
}
}
public async Task ExecuteAsync(Uri uri)
{
var httpClient = new HttpClient();
var response = await httpClient.GetAsync(uri);
var content = await response.Content.ReadAsStringAsync();
// <!-- M.A.C.Component:{"circuitId":"CfDJ8KZCIaqnXmdF...PVd6VVzfnmc1","rendererId":"0","componentId":"0"} -->
var match = Regex.Match(content, $"{Regex.Escape("<!-- M.A.C.Component:")}(.+?){Regex.Escape(" -->")}");
var json = JsonDocument.Parse(match.Groups[1].Value);
var circuitId = json.RootElement.GetProperty("circuitId").GetString();
var builder = new HubConnectionBuilder();
builder.Services.TryAddEnumerable(ServiceDescriptor.Singleton <IHubProtocol, IgnitorMessagePackHubProtocol>());
builder.WithUrl(new Uri(uri, "_blazor/"));
builder.ConfigureLogging(l => l.AddConsole().SetMinimumLevel(LogLevel.Trace));
var hive = new ElementHive();
await using var connection = builder.Build();
await connection.StartAsync(CancellationToken);
Console.WriteLine("Connected");
connection.On <int, string, string>("JS.BeginInvokeJS", OnBeginInvokeJS);
connection.On <int, int, byte[]>("JS.RenderBatch", OnRenderBatch);
connection.On <Error>("JS.OnError", OnError);
connection.Closed += OnClosedAsync;
// Now everything is registered so we can start the circuit.
var success = await connection.InvokeAsync <bool>("ConnectCircuit", circuitId);
await TaskCompletionSource.Task;
void OnBeginInvokeJS(int asyncHandle, string identifier, string argsJson)
{
Console.WriteLine("JS Invoke: " + identifier + " (" + argsJson + ")");
}
void OnRenderBatch(int browserRendererId, int batchId, byte[] batchData)
{
var batch = RenderBatchReader.Read(batchData);
hive.Update(batch);
// This will click the Counter component repeatedly resulting in infinite requests.
_ = ClickAsync("thecounter", hive, connection);
}
void OnError(Error error)
{
Console.WriteLine("ERROR: " + error.Stack);
}
Task OnClosedAsync(Exception ex)
{
if (ex == null)
{
TaskCompletionSource.TrySetResult(null);
}
else
{
TaskCompletionSource.TrySetException(ex);
}
return(Task.CompletedTask);
}
}
public async Task <bool> ConnectAsync(Uri uri, bool prerendered)
{
var builder = new HubConnectionBuilder();
builder.Services.TryAddEnumerable(ServiceDescriptor.Singleton <IHubProtocol, IgnitorMessagePackHubProtocol>());
builder.WithUrl(new Uri(uri, "_blazor/"));
builder.ConfigureLogging(l => l.AddConsole().SetMinimumLevel(LogLevel.Trace));
var hive = new ElementHive();
HubConnection = builder.Build();
await HubConnection.StartAsync(CancellationToken);
Console.WriteLine("Connected");
HubConnection.On <int, string, string>("JS.BeginInvokeJS", OnBeginInvokeJS);
HubConnection.On <int, int, byte[]>("JS.RenderBatch", OnRenderBatch);
HubConnection.On <Error>("JS.OnError", OnError);
HubConnection.Closed += OnClosedAsync;
// Now everything is registered so we can start the circuit.
if (prerendered)
{
CircuitId = await GetPrerenderedCircuitIdAsync(uri);
return(await HubConnection.InvokeAsync <bool>("ConnectCircuit", CircuitId));
}
else
{
CircuitId = await HubConnection.InvokeAsync <string>("StartCircuit", uri, uri);
return(CircuitId != null);
}
void OnBeginInvokeJS(int asyncHandle, string identifier, string argsJson)
{
JSInterop?.Invoke(asyncHandle, identifier, argsJson);
}
void OnRenderBatch(int browserRendererId, int batchId, byte[] batchData)
{
var batch = RenderBatchReader.Read(batchData);
hive.Update(batch);
if (ConfirmRenderBatch)
{
HubConnection.InvokeAsync("OnRenderCompleted", batchId, /* error */ null);
}
RenderBatchReceived?.Invoke(browserRendererId, batchId, batchData);
}
void OnError(Error error)
{
Console.WriteLine("ERROR: " + error.Stack);
}
Task OnClosedAsync(Exception ex)
{
if (ex == null)
{
TaskCompletionSource.TrySetResult(null);
}
else
{
TaskCompletionSource.TrySetException(ex);
}
return(Task.CompletedTask);
}
}