/// <summary>
/// Called after an inbound message has been received but before the message is dispatched to the intended operation.
/// </summary>
/// <returns>
/// The object used to correlate state. This object is passed back in the
/// <see
/// cref="M:System.ServiceModel.Dispatcher.IDispatchMessageInspector.BeforeSendReply(System.ServiceModel.Channels.Message@,System.Object)" />
/// method.
/// </returns>
/// <param name="request">The message message.</param>
/// <param name="channel">The incoming channel.</param>
/// <param name="instanceContext">The current service instance.</param>
public object AfterReceiveRequest(ref Message request, IClientChannel channel, InstanceContext instanceContext)
{
if (request == null || _tracer == null)
{
return(null);
}
ExtractNames(request, channel, out _webServiceName, out _operationName);
Guid correlationGuid;
string correlationId = GetMessageHeader(request, CorrelationIdHeader);
if (!string.IsNullOrWhiteSpace(correlationId) && Guid.TryParse(correlationId, out correlationGuid) && correlationGuid != Guid.Empty)
{
_tracer.SetCorrelationId(correlationGuid);
}
string userName = GetMessageHeader(request, UserNameHeader);
if (!string.IsNullOrWhiteSpace(userName))
{
_tracer.SetPrincipalId(userName);
}
string sessionId = GetMessageHeader(request, SessionIdHeader);
if (!string.IsNullOrWhiteSpace(sessionId))
{
_tracer.SetSessionId(sessionId);
}
_serverSideStartTime = _tracer.TraceStartPerformance();
return(null);
}
/// <summary>
/// Exécute le code du <see cref="MonitoringMiddleware"/>.
/// </summary>
/// <param name="context">Le contexte Http.</param>
/// <returns>Le code d'appel au middleware suivant.</returns>
public async Task InvokeAsync(HttpContext context)
{
HttpRequest request = context.Request;
// définit le session id au niveau du monitoring s'il a été fourni en tant que header http
string sessionId = request?.Headers?[SessionIdHeader].FirstOrDefault();
if (!string.IsNullOrWhiteSpace(sessionId))
{
_tracer.SetSessionId(sessionId);
}
// définit le principal id au niveau du monitoring
string principalId = context.User?.GetPreferredUserName();
if (!string.IsNullOrWhiteSpace(principalId))
{
_tracer.SetPrincipalId(principalId);
}
// débute une corrélation au niveau du monitoring
_tracer.SetCorrelationId(Guid.NewGuid());
try
{
using (_tracer.TracePerformance(traceEventType: TraceEventType.HttpResponse,
traceEventName: request.GetEncodedPathAndQuery(),
context: CreateContextForApiRequest(request)))
{
await _next(context);
}
}
catch (SqlException sqlException) when(sqlException.Number == 60000)
{
_tracer.TraceWarning(InternalMessages.UnexpectedUserAction, ErrorCodes.Application.UnexpectedUserAction, context: CreateContextForApiRequest(request));
await context.Response.WriteProblemAsync(HttpStatusCode.NotFound, InternalMessages.NotFoundResource);
}
catch (Exception exception)
{
_tracer.TraceException(exception, context: CreateContextForApiRequest(request));
await context.Response.WriteProblemAsync(HttpStatusCode.InternalServerError, exception.Message);
}
}