public string GetScript(IInternalTransaction transaction, string nonce)
{
if (string.IsNullOrEmpty(_configurationService.Configuration.BrowserMonitoringJavaScriptAgent))
{
return(null);
}
if (_configurationService.Configuration.BrowserMonitoringJavaScriptAgentLoaderType.Equals("none", StringComparison.InvariantCultureIgnoreCase))
{
return(null);
}
if (transaction.Ignored)
{
Log.Debug("Skipping RUM injection because transaction is ignored");
return(null);
}
var transactionMetricName = _transactionMetricNameMaker.GetTransactionMetricName(transaction.CandidateTransactionName.CurrentTransactionName);
if (transactionMetricName.ShouldIgnore)
{
Log.Debug("Skipping RUM injection because transaction name is ignored");
return(null);
}
var licenseKey = _configurationService.Configuration.AgentLicenseKey;
if (licenseKey == null)
{
throw new NullReferenceException(nameof(licenseKey));
}
if (licenseKey.Length <= 0)
{
throw new Exception("License key is empty");
}
var browserConfigurationData = GetBrowserConfigurationData(transaction, transactionMetricName, licenseKey);
// getting a stack trace is expensive, so only do it if we are going to log
if (Log.IsFinestEnabled)
{
transaction.LogFinest("RUM: TryGetBrowserTimingHeader success.");
}
var scriptNonce = String.IsNullOrEmpty(nonce) ? String.Empty : $@" nonce=""{HttpUtility.HtmlAttributeEncode(nonce)}""";
// The JavaScript variable NREUMQ stands for New Relic End User Metric "Q". This was the name before marketing renamed "EUM" to "RUM".
// We can't change the name of the variable since: (a) we have to be consistent across agents, and (b) it has to be in sync with the rum.js file which is downloaded from NR servers.
var javascriptAgentConfiguration = $"window.NREUM||(NREUM={{}});NREUM.info = {browserConfigurationData.ToJsonString()}";
var javascriptAgent = _configurationService.Configuration.BrowserMonitoringJavaScriptAgent;
return($"<script type=\"text/javascript\"{scriptNonce}>{javascriptAgentConfiguration}</script><script type=\"text/javascript\"{scriptNonce}>{javascriptAgent}</script>");
}
public bool SetTransactionOnAsyncContext(IInternalTransaction transaction)
{
if (_asyncContext == null)
{
return(false);
}
if (_asyncContext.GetData() == null)
{
_asyncContext.SetData(transaction);
if (Log.IsFinestEnabled)
{
transaction.LogFinest($"Attached to {_asyncContext}");
}
}
return(true);
}
