/// <summary>
/// Saves data about a hit to a short URL
/// </summary>
/// <param name="hit">Hit to save</param>
public async Task AddHitAsync(ShortenedUrlHit hit)
{
await _context.Hits.AddAsync(hit);
await _context.Database.ExecuteSqlCommandAsync(
$"UPDATE urls SET last_hit = {hit.Date.ToUnix()}, hits = hits + 1 WHERE id = {hit.UrlId}"
);
await _context.SaveChangesAsync();
}
/// <summary>
/// Saves data about a hit to a short URL
/// </summary>
/// <param name="hit">Hit to save</param>
public async Task AddHitAsync(ShortenedUrlHit hit, CancellationToken token = default(CancellationToken))
{
await _context.Hits.AddAsync(hit, token);
await _context.Database.ExecuteSqlCommandAsync(
$"UPDATE urls SET last_hit = {hit.Date.ToUnix()}, hits = hits + 1 WHERE id = {hit.UrlId}",
token
);
await _context.SaveChangesAsync(token);
}
/// <summary>
/// Creates a <see cref="ShortenedUrlHit"/> representing a hit to the specified URL
/// </summary>
/// <param name="urlId">Shortened URL that was hit</param>
/// <param name="ip">IP the hit came from</param>
/// <param name="userAgent">User-Agent the hit came from</param>
/// <param name="referrer">HTTP Referrer the hit came from</param>
/// <returns>The hit. Not saved to the database yet.</returns>
private ShortenedUrlHit CreateHit(int urlId, IPAddress ip, string userAgent, string referrer)
{
var hit = new ShortenedUrlHit
{
UrlId = urlId,
Date = DateTime.Now,
UserAgent = userAgent,
IpAddress = ip.ToString(),
// DB should really take nulls for these :(
ReferrerDomain = "",
Browser = "",
BrowserVersion = "",
Country = "",
};
// Parse user-agent
if (!string.IsNullOrWhiteSpace(hit.UserAgent))
{
var parsedUserAgent = _uaParser.ParseUserAgent(hit.UserAgent);
hit.Browser = parsedUserAgent.Family;
hit.BrowserVersion = parsedUserAgent.Major + "." + parsedUserAgent.Minor + "." + parsedUserAgent.Patch;
}
// Determine GeoIP country
if (_geoIp.TryCountry(ip, out var geoIpResponse))
{
hit.Country = geoIpResponse.Country.IsoCode;
}
// Parse domain from referrer
if (Uri.TryCreate(referrer, UriKind.Absolute, out var referrerUri))
{
hit.Referrer = referrerUri;
hit.ReferrerDomain = referrerUri.Host.Replace("www.", string.Empty);
}
return(hit);
}