public async Task <IActionResult> IndexAsync([FromQuery] string server)
{
try
{
_logger.Information("Preparing statistics for server {Server}", server);
if (!IsValidServer(server))
{
return(View(new HomeViewModel(_dnsServersSettings)));
}
var statisticsData = await _statisticsProvider.GetStatisticsForServer(server);
if (statisticsData == null || !statisticsData.Any())
{
_logger.Warning("Could not find any statistics for server {Server}", server);
return(View(new HomeViewModel(_dnsServersSettings)));
}
var queryTypes = new Dictionary <string, long>
{
{ "A", statisticsData.Sum(s => s.QueryTypeA) },
{ "SOA", statisticsData.Sum(s => s.QueryTypeSOA) },
{ "Null", statisticsData.Sum(s => s.QueryTypeNull) },
{ "TXT", statisticsData.Sum(s => s.QueryTypeTXT) },
{ "AAA", statisticsData.Sum(s => s.QueryTypeAAA) },
{ "SRV", statisticsData.Sum(s => s.QueryTypeSRV) },
{ "DNSKEY", statisticsData.Sum(s => s.QueryTypeDNSKEY) },
{ "ANY", statisticsData.Sum(s => s.QueryTypeAny) }
};
var answerTypes = new Dictionary <string, long>
{
{ "NOERROR", statisticsData.Sum(s => s.AnswerNOERROR) },
{ "FORMERR", statisticsData.Sum(s => s.AnswerFORMERR) },
{ "SERVFAIL", statisticsData.Sum(s => s.AnswerSERVFAIL) },
{ "NXDOMAIN", statisticsData.Sum(s => s.AnswerNXDOMAIN) },
{ "NOTIMPL", statisticsData.Sum(s => s.AnswerNOTIMPL) },
{ "REFUSED", statisticsData.Sum(s => s.AnswerREFUSED) },
{ "NODATA", statisticsData.Sum(s => s.AnswerNODATA) }
};
// Fill model with statistics
var homeViewModel = new HomeViewModel(_dnsServersSettings)
{
ServerName = server,
QueriesRequested = statisticsData.Sum(x => x.QueriesRequested).ToString("N0"),
QueriesBlocked = statisticsData.Sum(x => x.QueriesBlocked).ToString("N0"),
SerializedXLabels = Newtonsoft.Json.JsonConvert.SerializeObject(statisticsData.Select(x => x.CreatedDate)),
SerializedQueriesRequested = Newtonsoft.Json.JsonConvert.SerializeObject(statisticsData.Select(x => x.QueriesRequested)),
SerializedQueriesBlocked = Newtonsoft.Json.JsonConvert.SerializeObject(statisticsData.Select(x => x.QueriesBlocked)),
SerializedQueryTypeDimensions = Newtonsoft.Json.JsonConvert.SerializeObject(queryTypes.Keys.ToList()),
SerializedQueryTypeValues = Newtonsoft.Json.JsonConvert.SerializeObject(queryTypes.Values.ToList()),
SerializedAnswerTypeDimensions = Newtonsoft.Json.JsonConvert.SerializeObject(answerTypes.Keys.ToList()),
SerializedAnswerTypeValues = Newtonsoft.Json.JsonConvert.SerializeObject(answerTypes.Values.ToList()),
};
_logger.Debug("Created a HomeViewModel from {Count} data points", statisticsData.Count());
return(View(homeViewModel));
}
catch (Exception e)
{
_logger.Error(e, "Got an exception while preparing statistics for server {Server}", server);
throw;
}
}
