/// <summary>
/// Processes the task state change.
/// </summary>
/// <param name="notificationMessage">MediaServicesV2NotificationMessage.</param>
/// <param name="jobId">The id of the job.</param>
/// <returns>Successfully published message.</returns>
private async Task <string> ProcessTaskStateChangeAsync(MediaServicesV2NotificationMessage notificationMessage, string jobId)
{
_ = notificationMessage ?? throw new ArgumentNullException(nameof(notificationMessage));
if (!notificationMessage.Properties.TryGetValue("newState", out string newState))
{
throw new Exception("Could not find NewState property in notification message");
}
if (newState.Equals("Scheduled", StringComparison.OrdinalIgnoreCase) ||
newState.Equals("Processing", StringComparison.OrdinalIgnoreCase))
{
return(newState);
}
if (newState.Equals("Finished", StringComparison.OrdinalIgnoreCase))
{
try
{
var destinationUris = await _mediaServicesV2EncodeOperations.CopyOutputAssetToOutputContainerAsync(jobId).ConfigureAwait(false);
}
catch (Exception e)
{
throw new Exception("Failed while CopyOutputAssetToOutputContainerAsync", e);
}
try
{
await _mediaServicesV2EncodeOperations.DeleteAssetsForJobAsync(jobId).ConfigureAwait(false);
}
catch (Exception e)
{
throw new Exception("Failed while DeleteAssetsForV2JobAsync", e);
}
return(newState);
}
if (newState.Equals("Error", StringComparison.OrdinalIgnoreCase))
{
await _mediaServicesV2EncodeOperations.DeleteAssetsForJobAsync(jobId).ConfigureAwait(false);
throw new Exception("Encode Job Failed");
}
if (newState.Equals("Canceled", StringComparison.OrdinalIgnoreCase))
{
await _mediaServicesV2EncodeOperations.DeleteAssetsForJobAsync(jobId).ConfigureAwait(false);
return(newState);
}
throw new NotSupportedException($"Unknown newState:{newState}");
}
private static EventGridEvent GetEventFromNotificationMessage(MediaServicesV2NotificationMessage notificationMessage)
{
var eventGridEventId = System.Guid.NewGuid().ToString();
return(new EventGridEvent
{
Id = eventGridEventId,
Data = JsonConvert.SerializeObject(notificationMessage),
EventTime = System.DateTime.UtcNow,
EventType = CustomEventTypes.ResponseEncodeMediaServicesV2TranslateCallback,
Subject = $"/{CustomEventTypes.ResponseEncodeMediaServicesV2TranslateCallback}/{eventGridEventId}",
DataVersion = "1.0",
});
}
/// <summary>
/// Get the progress.
/// </summary>
/// <param name="notificationMessage">MediaServicesV2NotificationMessage.</param>
/// <returns>Progress percentage.</returns>
private static int GetEncodeProgress(MediaServicesV2NotificationMessage notificationMessage)
{
_ = notificationMessage ?? throw new ArgumentNullException(nameof(notificationMessage));
if (!notificationMessage.Properties.TryGetValue("lastComputedProgress", out string progressString))
{
throw new Exception("Could not find LastComputedProgress property in notification message");
}
if (!int.TryParse(progressString, out int progress))
{
throw new Exception("Could not parse progress from message");
}
return(progress);
}
public async void HandleAsync_ShouldReturnTrue_WhenTaskStateChangePayloadIsValid(string oldState, string newState, string expectedEventType)
{
var mediaV2ServiceMock = Mock.Of <IMediaServicesV2EncodeService>();
Mock.Get(mediaV2ServiceMock)
.Setup(x => x.GetOperationContextForJobAsync(It.IsAny <string>()))
.ReturnsAsync(new JObject());
var egPublisherMock = Mock.Of <IEventGridPublisher>();
dynamic opcontext = new JObject();
opcontext.TestKey = "TestValue";
Mock.Get(egPublisherMock)
.Setup(x => x.PublishEventToTopic(It.IsAny <EventGridEvent>()))
.ReturnsAsync(true);
var handler = new MediaServicesV2CallbackHandler(log, mediaV2ServiceMock, egPublisherMock);
var notificationMessage = new MediaServicesV2NotificationMessage()
{
ETag = "random",
EventType = MediaServicesV2NotificationEventType.TaskStateChange,
MessageVersion = "1.1",
TimeStamp = DateTime.UtcNow,
Properties = new Dictionary <string, string>()
{
{ "jobId", "nb:jid:UUID:91ab2b3a-0d00-a812-94e1-f1ea63c713e1" },
{ "taskId", "nb:tid:UUID:4c1e6189-cb33-45ca-901a-46dcd3cc5f40" },
{ "newState", newState },
{ "oldState", oldState },
{ "accountName", "justatest" },
{ "accountId", "00000000-0000-0000-0000-000000000000" },
{ "notificationEndPointId", "nb:nepid:UUID:738eb6b5-a18d-4b7f-961d-bc33e844da13" }
}
};
var actual = await handler.HandleAsync(GetEventFromNotificationMessage(notificationMessage)).ConfigureAwait(false);
actual.ShouldBeTrue();
Mock.Get(egPublisherMock)
.Verify(x => x.PublishEventToTopic(It.Is <EventGridEvent>(x => x.EventType == expectedEventType)),
Times.Once,
"publish should be called with the correct eventtype");
}
/// <inheritdoc/>
public async Task <(string JobId, string Status)> HandleNotificationAsync(MediaServicesV2NotificationMessage notificationMessage)
{
_ = notificationMessage ?? throw new ArgumentNullException(nameof(notificationMessage));
var jobId = notificationMessage.Properties["jobId"];
if (string.IsNullOrWhiteSpace(jobId))
{
throw new ArgumentException("notificationMessage.jobId is invalid");
}
string newState;
try
{
switch (notificationMessage.EventType)
{
case MediaServicesV2NotificationEventType.TaskStateChange:
newState = await ProcessTaskStateChangeAsync(notificationMessage, jobId).ConfigureAwait(false);
break;
case MediaServicesV2NotificationEventType.TaskProgress:
newState = $"Progress:{GetEncodeProgress(notificationMessage)}";
break;
default:
_log.LogInformation(notificationMessage.EventType.ToString());
throw new NotSupportedException($"Unsupported AMSv2 event type {notificationMessage.EventType}");
}
}
catch (Exception e)
{
var msg = $"Failed while parsing notifiation message for {jobId}.";
_log.LogError(msg, e);
throw new Exception(msg, e);
}
return(jobId, newState);
}
public async void HandleAsync_ShouldPublishFailureEvent_WhenPayloadIsNotFormatedCorrectly()
{
var mediaV2ServiceMock = Mock.Of <IMediaServicesV2EncodeService>();
var egPublisherMock = Mock.Of <IEventGridPublisher>();
dynamic opcontext = new JObject();
opcontext.TestKey = "TestValue";
Mock.Get(egPublisherMock)
.Setup(x => x.PublishEventToTopic(It.IsAny <EventGridEvent>()))
.ReturnsAsync(true);
var handler = new MediaServicesV2CallbackHandler(log, mediaV2ServiceMock, egPublisherMock);
var notificationMessage = new MediaServicesV2NotificationMessage()
{
ETag = "random",
EventType = MediaServicesV2NotificationEventType.TaskStateChange,
MessageVersion = "1.1",
TimeStamp = DateTime.UtcNow,
Properties = new Dictionary <string, string>()
{
{ "jobId", "nb:jid:UUID:91ab2b3a-0d00-a812-94e1-f1ea63c713e1" },
{ "taskId", "nb:tid:UUID:4c1e6189-cb33-45ca-901a-46dcd3cc5f40" },
{ "noState", "Wrong" },
{ "oldState", "OldState" },
{ "accountName", "justatest" },
{ "accountId", "00000000-0000-0000-0000-000000000000" },
{ "notificationEndPointId", "nb:nepid:UUID:738eb6b5-a18d-4b7f-961d-bc33e844da13" }
}
};
await handler.HandleAsync(GetEventFromNotificationMessage(notificationMessage)).ConfigureAwait(false);
Mock.Get(egPublisherMock)
.Verify(x => x.PublishEventToTopic(It.Is <EventGridEvent>(e => e.EventType == CustomEventTypes.ResponseFailure)));
}
/// <summary>
/// Initializes a new instance of the <see cref="GridwichMediaServicesV2MessageProcessingException" /> class.
/// </summary>
/// <param name="notificationMessage">The notification message.</param>
/// <param name="message">The base exception message you want to set.</param>
/// <param name="logEventId">The last LogEventId that was logged relevant to this exception.</param>
/// <param name="operationContext">The OperationContext for this exception.</param>
/// <param name="innerException">The cause behind this exception.</param>
public GridwichMediaServicesV2MessageProcessingException(MediaServicesV2NotificationMessage notificationMessage, string message, EventId logEventId, JObject operationContext, Exception innerException)
: base(message, logEventId, operationContext, innerException)
{
SafeAddToData(MessageKey, notificationMessage);
}
public async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "post", Route = null)]
HttpRequest req,
CancellationToken cancellationToken)
{
if (cancellationToken.IsCancellationRequested)
{
_logger.LogEvent(LogEventIds.FunctionAppShuttingDown, LogEventIds.FunctionAppShuttingDown.Name);
throw new OperationCanceledException("Function invoked with a canceled cancellation token.");
}
try
{
cancellationToken.Register(() =>
{
_logger.LogEvent(LogEventIds.FunctionAppShuttingDown, LogEventIds.FunctionAppShuttingDown.Name);
});
_logger.LogEvent(LogEventIds.CallbackFunctionTriggered, $"C# HTTP trigger function processed a request. Path={req?.Path}");
// TODO: not sure why we have to get the byte array.. might be legacy code
// MemoryStream stream = new MemoryStream();
// await req.Body.CopyToAsync(stream);
// byte[] bodyByteArray = stream.ToArray();
string requestBody;
using (var sr = new StreamReader(req.Body))
{
requestBody = await sr.ReadToEndAsync().ConfigureAwait(false);
}
if (req.Headers.TryGetValue("ms-signature", out _))
{
// TODO: need to verify headers here. However not sure how to get the signing key.
MediaServicesV2NotificationMessage notificationMessage = JsonConvert.DeserializeObject <MediaServicesV2NotificationMessage>(requestBody);
var eventGridEventId = System.Guid.NewGuid().ToString();
var eventToPublish = new Microsoft.Azure.EventGrid.Models.EventGridEvent
{
Id = eventGridEventId,
Data = notificationMessage,
EventTime = System.DateTime.UtcNow,
EventType = CustomEventTypes.ResponseEncodeMediaServicesV2TranslateCallback,
Subject = $"/{CustomEventTypes.ResponseEncodeMediaServicesV2TranslateCallback}/{eventGridEventId}",
DataVersion = "1.0",
};
await _publisher.PublishEventToTopic(eventToPublish).ConfigureAwait(false);
_logger.LogEvent(LogEventIds.CallbackFunctionNotificationMessageProcessed, "processed notification message");
}
else
{
_logger.LogEvent(LogEventIds.RequestIsMissingVerifyWebHookRequestSignature, "VerifyWebHookRequestSignature failed.");
return(new BadRequestObjectResult("VerifyWebHookRequestSignature failed."));
}
return(new OkObjectResult("OK"));
}
catch (OperationCanceledException oce)
{
_logger.LogEventObject(LogEventIds.OperationCancelException, oce);
throw;
}
}