public async Task NotifyPlatformConnectionDataUpdate(string userId, IList <string> appIds,
string platformId, IAsyncDocumentSession session, CancellationToken cancellationToken = default)
{
var platformConnectionState = PlatformConnectionState.Connected;
var data = await _platformDataManager.GetPlatformData(userId, platformId, session, cancellationToken);
if (data != null)
{
platformConnectionState = PlatformConnectionState.Synced;
}
await NotifyPlatformDataUpdate(userId, appIds, platformId, session, NotificationReason.DataUpdate, platformConnectionState,
cancellationToken : cancellationToken);
}
public async Task Handle(PlatformConnectionUpdateNotificationMessage message)
{
using var _ = _logger.BeginNamedScopeWithMessage(nameof(DataFetchCompleteHandler),
_messageContext.Message.GetMessageId(),
(LoggerPropertyNames.ApplicationId, message.AppId),
(LoggerPropertyNames.UserId, message.UserId));
using var session = _documentStore.OpenAsyncSession();
DataSyncLog syncLog = null;
if (!string.IsNullOrEmpty(message.SyncLogId))
{
syncLog = await session.LoadAsync <DataSyncLog>(message.SyncLogId);
}
using var __ = _logger.BeginPropertyScope((LoggerPropertyNames.DataSyncLogId, syncLog?.ExternalId));
var cancellationToken = _messageContext.GetCancellationToken();
var user = await session.LoadAsync <User>(message.UserId, cancellationToken);
if (user == null)
{
var logMessage = "User with given id does not exist. Will move message to error queue.";
_logger.LogWarning(logMessage);
syncLog?.Steps.Add(new DataSyncStep(DataSyncStepType.AppNotification, DataSyncStepState.Failed, logMessage));
await _bus.Advanced.TransportMessage.Forward(_rebusConfiguration.ErrorQueueName);
await session.SaveChangesAsync();
return;
}
var app = await _appManager.GetAppFromId(message.AppId, session, cancellationToken);
if (app == null)
{
var logMessage = "App with given id does not exist. Will move message to error queue.";
_logger.LogWarning(logMessage);
syncLog?.Steps.Add(new DataSyncStep(DataSyncStepType.AppNotification, DataSyncStepState.Failed, logMessage));
await _bus.Advanced.TransportMessage.Forward(_rebusConfiguration.ErrorQueueName);
await session.SaveChangesAsync();
return;
}
var platform = await session.LoadAsync <Platform>(message.PlatformId, cancellationToken);
if (platform == null)
{
var logMessage = "Platform with given id does not exist. Will move message to error queue.";
_logger.LogWarning(logMessage);
syncLog?.Steps.Add(new DataSyncStep(DataSyncStepType.AppNotification, DataSyncStepState.Failed, logMessage, app.Id, app.DataUpdateCallbackUrl));
await _bus.Advanced.TransportMessage.Forward(_rebusConfiguration.ErrorQueueName);
await session.SaveChangesAsync();
return;
}
var notificationReason = message.Reason;
var platformConnectionState = message.PlatformConnectionState;
PlatformDataClaim?platformDataClaim = null;
if (notificationReason != NotificationReason.ConnectionDeleted)
{
if (platformConnectionState == PlatformConnectionState.Connected || platformConnectionState == PlatformConnectionState.Synced)
{
var activePlatformConnection = user.PlatformConnections.SingleOrDefault(pc =>
pc.PlatformId == message.PlatformId && !pc.ConnectionInfo.IsDeleted);
if (activePlatformConnection == null)
{
_logger.LogWarning(
$"No active connection exists for the given platform. Will notify app about removed connection.");
notificationReason = NotificationReason.ConnectionDeleted;
platformConnectionState = PlatformConnectionState.Removed;
}
else
{
var notificationInfoForApp =
activePlatformConnection.ConnectionInfo.NotificationInfos.SingleOrDefault(ni =>
ni.AppId == app.Id);
if (notificationInfoForApp == null)
{
_logger.LogWarning(
$"No active connection to the given app. Will notify app about removed connection.");
notificationReason = NotificationReason.ConnectionDeleted;
platformConnectionState = PlatformConnectionState.Removed;
}
else
{
platformDataClaim = notificationInfoForApp.PlatformDataClaim;
}
}
}
}
PlatformData platformData = null;
if (notificationReason == NotificationReason.DataUpdate)
{
platformData =
await _platformDataManager.GetPlatformData(user.Id, platform.Id, session, cancellationToken);
}
var updatePayload = CreatePayload(platform.ExternalId, user.ExternalId, app.SecretKey, platform.Name,
platformConnectionState, DateTimeOffset.UtcNow, notificationReason, platformData, platformDataClaim);
if (string.IsNullOrWhiteSpace(app.DataUpdateCallbackUrl))
{
var logMessage = "No notification endpoint was given. Will move message to error queue.";
_logger.LogWarning(logMessage);
syncLog?.Steps.Add(new DataSyncStep(DataSyncStepType.AppNotification, DataSyncStepState.Failed, logMessage, app.Id, app.DataUpdateCallbackUrl));
await _bus.Advanced.TransportMessage.Forward(_rebusConfiguration.ErrorQueueName);
await session.SaveChangesAsync();
return;
}
if (!Uri.TryCreate(app.DataUpdateCallbackUrl, UriKind.Absolute, out var uri))
{
_logger.LogError("Could not create uri from {DataCallbackUrl}. Will ignore message.", app.DataUpdateCallbackUrl);
syncLog?.Steps.Add(new DataSyncStep(DataSyncStepType.AppNotification, DataSyncStepState.Failed,
"Could not create uri from app data callback url. Will ignore message.", app.Id, app.DataUpdateCallbackUrl));
await session.SaveChangesAsync();
return;
}
if (IsLocalHost(uri))
{
_logger.LogWarning("Uri with url {DataCallbackUrl} is equal to localhost. Will ignore message.", app.DataUpdateCallbackUrl);
syncLog?.Steps.Add(new DataSyncStep(DataSyncStepType.AppNotification, DataSyncStepState.Failed,
"Uri is equal to localhost. Will ignore message.", app.Id, app.DataUpdateCallbackUrl));
await session.SaveChangesAsync();
return;
}
var serializerSettings = new JsonSerializerSettings
{
ContractResolver = new CamelCasePropertyNamesContractResolver()
};
var serializedPayload = JsonConvert.SerializeObject(updatePayload, serializerSettings);
_logger.LogTrace("Payload to be sent: {Payload}", serializedPayload);
var content = new StringContent(serializedPayload, Encoding.UTF8, "application/json");
content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
HttpResponseMessage response;
try
{
var httpClient = new HttpClient();
response = await httpClient.PostAsync(
uri,
content, cancellationToken);
}
catch (Exception e)
{
var logMessage = "Got error calling endpoint. Will schedule retry.";
_logger.LogError(e, logMessage);
syncLog?.Steps.Add(new DataSyncStep(DataSyncStepType.AppNotification, DataSyncStepState.Failed, logMessage, app.Id, app.DataUpdateCallbackUrl));
await _bus.DeferMessageLocalWithExponentialBackOff(message, _messageContext.Headers, MaxMessageRetries,
_rebusConfiguration.ErrorQueueName, logger : _logger);
await session.SaveChangesAsync();
return;
}
if (!response.IsSuccessStatusCode)
{
if ((int)response.StatusCode >= 400 && (int)response.StatusCode < 500)
{
//we got a 40x status code. Inspect further to determine action.
if (response.StatusCode == HttpStatusCode.Gone)
{
//If we get a 410 it means that the app is telling us that they don't want updates for the given platform for the user again.
//remove the app notification from the platformconnection.
_logger.LogInformation("App responded with {httpStatusCode}. Will remove notification info for app.", response.StatusCode);
var platformConnection = user.PlatformConnections.SingleOrDefault(pc => pc.PlatformId == message.PlatformId);
if (platformConnection != null)
{
int?notificationInfoIdx = null;
var counter = 0;
foreach (var notificationInfo in platformConnection.ConnectionInfo.NotificationInfos)
{
if (notificationInfo.AppId == message.AppId)
{
notificationInfoIdx = counter;
break;
}
counter++;
}
if (notificationInfoIdx.HasValue)
{
platformConnection.ConnectionInfo.NotificationInfos.RemoveAt(notificationInfoIdx.Value);
}
}
syncLog?.Steps.Add(new DataSyncStep(DataSyncStepType.AppNotification, DataSyncStepState.Succeeded,
logMessage: $"App responded with {response.StatusCode}, indicating that the notification should be removed. App will not be notified again.",
appId: app.Id,
appWebHookUrl: app.DataUpdateCallbackUrl));
}
else
{
//some other 400. We will not retry the request. But we will keep the connection info for the app and the app will be notified next update again.
_logger.LogInformation("App responded with {httpStatusCode}. Will not retry current request. App will be notified on next data update", response.StatusCode);
syncLog?.Steps.Add(new DataSyncStep(DataSyncStepType.AppNotification, DataSyncStepState.Failed,
logMessage: $"App responded with {response.StatusCode}. Current request will not be retried. App will be notified again on next update.",
appId: app.Id,
appWebHookUrl: app.DataUpdateCallbackUrl));
}
}
else
{
_logger.LogError("Got non success status code ({HttpStatusCode}) calling endpoint. Will schedule retry.", response.StatusCode);
syncLog?.Steps.Add(new DataSyncStep(DataSyncStepType.AppNotification, DataSyncStepState.Failed,
$"Got non success status code ({response.StatusCode}) calling endpoint. Will schedule retry.", app.Id, app.DataUpdateCallbackUrl));
await _bus.DeferMessageLocalWithExponentialBackOff(message, _messageContext.Headers, MaxMessageRetries,
_rebusConfiguration.ErrorQueueName, logger : _logger);
}
await session.SaveChangesAsync(cancellationToken);
return;
}
syncLog?.Steps.Add(new DataSyncStep(DataSyncStepType.AppNotification, DataSyncStepState.Succeeded, appId: app.Id, appWebHookUrl: app.DataUpdateCallbackUrl));
await session.SaveChangesAsync(cancellationToken);
_logger.LogInformation("App successfully notified about platform data update.");
}