public async Task<ActionResult> Collect()
{
var visit = new Visit {IP = IPAddress.Parse(Request.UserHostAddress).MapToIPv4(), Timestamp = DateTime.UtcNow};
await GeoLocator.Instance.Locate(visit);
await StorageService.Instance.StoreVisit(visit);
return Content("OK");
}
public async Task Locate(Visit visit)
{
var addr = visit.IP;
int l = 0, h = _countryInfos.Count - 1, m = 0;
bool found = false;
while (h - l > 1)
{
m = (l + h)/2;
var comparisonRes = _countryInfos[m].CompareWithRange(addr);
if (comparisonRes == 0)
{
found = true;
break;
}
else if (comparisonRes < 0) h = m;
else l = m;
}
if (!found)
{
if (_countryInfos[l].CompareWithRange(addr) == 0)
{
found = true;
m = l;
}
else if (_countryInfos[h].CompareWithRange(addr) == 0)
{
found = true;
m = h;
}
#if DEBUG
else
{
found = true;
m = 70; // ukraine
}
#endif
}
if (found)
{
visit.Country = _countryInfos[m].Name;
visit.CountryCode = _countryInfos[m].Code;
}
}
public async Task StoreVisit(Visit visit)
{
await _connection.AppendToStreamAsync("Visits", -2, new IEvent[] { visit });
}