private IDictionary <string, string> CreateQueryStringArgsForGaCollect(GaRouteTrackingArg gaRouteArgs)
{
var dict = new Dictionary <string, string>
{
{ "v", "1" }, // Version
{ "ds", "api" }, // Data Source
{ "t", "pageview" }, // Hit Type
{ "tid", _gaTrackingCode }, // Tracking ID
{ "cid", gaRouteArgs.ClientId }, // ClientID
{ "dh", gaRouteArgs.Host }, // Document Host Name
{ "dl", gaRouteArgs.AbsoluteUrl }, // Document Location
{ "ua", gaRouteArgs.UserAgent }, // User-Agent Override
{ "ul", "en-gb" }, // User Language
{ "an", gaRouteArgs.ApplicationName }, // Application Name
{ "av", gaRouteArgs.ApiVersion }, // Application Version
{ "dp", gaRouteArgs.Path }, // Document Path
{ "dt", $"{gaRouteArgs.CtrlName}-{gaRouteArgs.ActionName}" } // Document Title
};
if (!string.IsNullOrEmpty(gaRouteArgs.RemoteIp))
{
dict.Add("uip", gaRouteArgs.RemoteIp); // IP Override
}
if (!string.IsNullOrEmpty(gaRouteArgs.UrlReferrer))
{
dict.Add("dr", gaRouteArgs.UrlReferrer); // Document Referrer
}
return(dict);
}
public override Task OnActionExecutingAsync(HttpActionContext actionContext, CancellationToken cancellationToken)
{
var incomingReq = HttpContext.Current.Request;
RemoveRestrictedHeaders(incomingReq);
var assembly = Assembly.GetExecutingAssembly();
var fileVersionInfo = FileVersionInfo.GetVersionInfo(assembly.Location);
var assemblyInformationalVersion = fileVersionInfo.ProductVersion;
var gaRouteArgs = new GaRouteTrackingArg
{
ApplicationName = AppDomain.CurrentDomain.FriendlyName,
CtrlName = actionContext.ActionDescriptor.ControllerDescriptor.ControllerName,
ActionName = actionContext.ActionDescriptor.ActionName,
ApiVersion = assemblyInformationalVersion,
ClientId = incomingReq.ServerVariables[OriginHeaderKey] ?? DefaultClientId,
Host = incomingReq.Url.Host,
RawUrl = incomingReq.RawUrl,
AbsoluteUrl = incomingReq.Url.AbsoluteUri,
UrlReferrer = incomingReq.UrlReferrer?.AbsoluteUri ?? string.Empty,
RemoteIp = (incomingReq.IsLocal ? string.Empty : incomingReq.ServerVariables[RemoteAddressHeaderKey]) ?? string.Empty,
UserAgent = incomingReq.UserAgent,
Path = incomingReq.ApplicationPath,
OriginalRequestHeaders = incomingReq.Headers
};
_analyticsService.TrackApiCall(gaRouteArgs);
return(base.OnActionExecutingAsync(actionContext, cancellationToken));
}
public async Task TrackApiCall(GaRouteTrackingArg gaRouteArgs)
{
try
{
var dict = CreateQueryStringArgsForGaCollect(gaRouteArgs);
var qs = UrlHelper.ToQueryString(dict);
var collectUrl = $"{GaCollectPrefixUrl}{qs}";
_logger.Debug(collectUrl);
var gaReq = WebRequest.Create(collectUrl);
gaReq.Headers = new WebHeaderCollection {
gaRouteArgs.OriginalRequestHeaders
};
await gaReq.GetResponseAsync();
}
catch (Exception ex)
{
_logger.Error(ex, "Error with GA collection call.");
}
}