/// <summary>
/// Invokes this middleware instance on the specified context.
/// </summary>
/// <param name="context">The context.</param>
/// <returns>A middleware invocation/execution task.</returns>
public async Task Invoke(HttpContext context)
{
// as we learned from a field issue, apparently a middleware can even be invoked without a valid HttPContext:
string requestId = null;
requestId = context?.Features?
.Get <IHttpRequestIdentifierFeature>()?
.TraceIdentifier;
#if (NETSTANDARD2_1 || NETCOREAPP3_0)
context?.Request.EnableBuffering();
#else
context?.Request.EnableRewind();
#endif
using (_logger.BeginScope($"Request: {requestId ?? string.Empty}"))
{
NetworkTelemetry networkTelemetry = null;
try
{
if (TelemetryCollector.Instance.IsAutocollecting && context != null && context.Request != null)
{
int?telemetryStatusCode = null;
telemetryStatusCode = context?.Response?.StatusCode;
networkTelemetry = new NetworkTelemetry(
method: context.Request.Method,
url: context.Request.Host.Value + context.Request.Path,
eventStart: DateTime.UtcNow,
eventEnd: null,
statusCode: telemetryStatusCode
);
TelemetryCollector.Instance.Capture(new Telemetry(TelemetrySource.Server, TelemetryLevel.Info, networkTelemetry));
}
if (RollbarScope.Current != null && RollbarScope.Current.HttpContext != null)
{
RollbarScope.Current.HttpContext.HttpAttributes = new RollbarHttpAttributes(context);
}
await this._nextRequestProcessor(context);
}
catch (System.Exception ex)
{
if (networkTelemetry != null)
{
networkTelemetry.StatusCode =
context?.Response?.StatusCode.ToString();
networkTelemetry.FinalizeEvent();
}
if (!RollbarLocator.RollbarInstance.Config.CaptureUncaughtExceptions)
{
// just rethrow since the Rollbar SDK is configured not to auto-capture
// uncaught exceptions:
throw;
}
if (RollbarScope.Current != null &&
RollbarLocator.RollbarInstance.Config.MaxItems > 0
)
{
RollbarScope.Current.IncrementLogItemsCount();
if (RollbarScope.Current.LogItemsCount == RollbarLocator.RollbarInstance.Config.MaxItems)
{
// the Rollbar SDK just reached MaxItems limit, report this fact and pause further logging within this scope:
RollbarLocator.RollbarInstance.Warning(RollbarScope.MaxItemsReachedWarning);
throw;
}
else if (RollbarScope.Current.LogItemsCount > RollbarLocator.RollbarInstance.Config.MaxItems)
{
// just rethrow since the Rollbar SDK already exceeded MaxItems limit:
throw;
}
}
else
{
IRollbarPackage rollbarPackage = new ExceptionPackage(ex, $"{nameof(RollbarMiddleware)} processed uncaught exception.");
if (context != null)
{
if (context.Request != null)
{
rollbarPackage = new HttpRequestPackageDecorator(rollbarPackage, context.Request, true);
}
if (context.Response != null)
{
rollbarPackage = new HttpResponsePackageDecorator(rollbarPackage, context.Response, true);
}
}
RollbarLocator.RollbarInstance.Critical(rollbarPackage);
}
throw new RollbarMiddlewareException(ex);
}
finally
{
if (context != null &&
context.Response != null &&
RollbarScope.Current != null &&
RollbarScope.Current.HttpContext != null &&
RollbarScope.Current.HttpContext.HttpAttributes != null
)
{
RollbarScope.Current.HttpContext.HttpAttributes.ResponseStatusCode = context.Response.StatusCode;
}
if (networkTelemetry != null)
{
if (string.IsNullOrWhiteSpace(networkTelemetry.StatusCode))
{
networkTelemetry.StatusCode = context?.Response?.StatusCode.ToString();
}
networkTelemetry.FinalizeEvent();
}
}
}
}
/// <summary>
/// Invokes this middleware instance on the specified context.
/// </summary>
/// <param name="context">The context.</param>
/// <returns>A middleware invocation/execution task.</returns>
public async Task Invoke(HttpContext context)
{
// as we learned from a field issue, apparently a middleware can even be invoked without a valid HttPContext:
string requestId = null;
requestId = context?.Features?
.Get <IHttpRequestIdentifierFeature>()?
.TraceIdentifier;
using (_logger.BeginScope($"Request: {requestId ?? string.Empty}"))
{
NetworkTelemetry networkTelemetry = null;
try
{
if (TelemetryCollector.Instance.IsAutocollecting && context != null && context.Request != null)
{
int?telemetryStatusCode = null;
telemetryStatusCode = context?.Response?.StatusCode;
networkTelemetry = new NetworkTelemetry(
method: context.Request.Method,
url: context.Request.Host.Value + context.Request.Path,
eventStart: DateTime.UtcNow,
eventEnd: null,
statusCode: telemetryStatusCode
);
TelemetryCollector.Instance.Capture(new Telemetry(TelemetrySource.Server, TelemetryLevel.Info, networkTelemetry));
}
RollbarScope.Current.HttpContext.HttpAttributes = new RollbarHttpAttributes(context);
await this._nextRequestProcessor(context);
}
catch (System.Exception ex)
{
if (networkTelemetry != null)
{
networkTelemetry.StatusCode = context?.Response?.StatusCode.ToString();
networkTelemetry.FinalizeEvent();
}
if (!RollbarLocator.RollbarInstance.Config.CaptureUncaughtExceptions)
{
// just rethrow since the Rollbar SDK is configured not to auto-capture uncaught exceptions:
throw ex;
}
if (RollbarScope.Current != null &&
RollbarLocator.RollbarInstance.Config.MaxItems > 0
)
{
RollbarScope.Current.IncrementLogItemsCount();
if (RollbarScope.Current.LogItemsCount == RollbarLocator.RollbarInstance.Config.MaxItems)
{
// the Rollbar SDK just reached MaxItems limit, report this fact and pause further logging within this scope:
#pragma warning disable CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
RollbarLocator.RollbarInstance.Warning(RollbarScope.MaxItemsReachedWarning);
#pragma warning restore CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
throw ex;
}
else if (RollbarScope.Current.LogItemsCount > RollbarLocator.RollbarInstance.Config.MaxItems)
{
// just rethrow since the Rollbar SDK already exceeded MaxItems limit:
throw ex;
}
}
else
{
// let's custom build the Data object that includes the exception
// along with the current HTTP request context:
DTOs.Data data = new DTOs.Data(
config: RollbarLocator.RollbarInstance.Config,
body: new DTOs.Body(ex),
custom: null,
request: (context != null) ? new DTOs.Request(null, context.Request) : null
)
{
Level = ErrorLevel.Critical,
};
// log the Data object (the exception + the HTTP request data):
#pragma warning disable CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
RollbarLocator.RollbarInstance.Log(data);
#pragma warning restore CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
}
throw new System.Exception("The included internal exception processed by the Rollbar middleware", ex);
}
finally
{
if (context != null &&
context.Response != null &&
RollbarScope.Current != null &&
RollbarScope.Current.HttpContext != null &&
RollbarScope.Current.HttpContext.HttpAttributes != null
)
{
RollbarScope.Current.HttpContext.HttpAttributes.StatusCode = context.Response.StatusCode;
}
if (networkTelemetry != null)
{
if (string.IsNullOrWhiteSpace(networkTelemetry.StatusCode))
{
networkTelemetry.StatusCode = context?.Response?.StatusCode.ToString();
}
networkTelemetry.FinalizeEvent();
}
}
}
}
