private void LocationResolvingThread()
{
int TimeoutValue = DefaultTimeoutValue * 4; // Allow for quarter-second sleep time
ResolverTimeout = TimeoutValue;
while (active && ResolverTimeout > 0)
{
if (ResolverQueue.Count > 0)
{
ClientInfoObject client = null;
bool DequeueSuccessful = false;
while (!(DequeueSuccessful))
{
DequeueSuccessful = ResolverQueue.TryDequeue(out client);
}
client = GeolocationDatabase.ResolveLocation(client);
IConsole.WriteLine(String.Format("[+] Address resolved: {0} -> {1}, {2}", client.address, client.City, client.Country));
ResolverTimeout = DefaultTimeoutValue; // Reset the timeout counter
if (this.AddressResolvedEventSubscription != null)
{
this.AddressResolvedEventSubscription(client);
}
}
else
{
ResolverTimeout--;
Thread.Sleep(250);
}
}
IConsole.PauseClearResume();
IConsole.WriteLine("[+] Initialized successfully.");
}
// Binary search because I just don't have 1.5GB of free RAM
public ClientInfoObject ResolveLocation(ClientInfoObject client)
{
int floor = 0;
int ceiling = this.DatabaseLineCount - 1;
if (ceiling > floor)
{
int DecimalAddress = IPStringToDecimal(client.address);
while (true)
{
int middle = (int)Math.Floor((float)(floor + ceiling) / 2);
String DatabaseLine = String.Empty;
using (var FileHandle = File.OpenRead(DatabasePath))
{
// Use the index cache to avoid repeatedly iterating the entire database
FileHandle.Position = LineIndices[middle];
using (StreamReader LineReader = new StreamReader(FileHandle))
{
DatabaseLine = LineReader.ReadLine();
}
}
DatabaseInfoObject AddressInfo = new DatabaseInfoObject(DatabaseLine);
if (DecimalAddress > AddressInfo.AddressFloor && DecimalAddress < AddressInfo.AddressCeiling)
{
// Search succeeded
client.SetAddressInfo(AddressInfo);
break;
}
// Continue searching
else if (DecimalAddress > AddressInfo.AddressCeiling)
{
floor = middle + 1;
}
else if (DecimalAddress < AddressInfo.AddressFloor)
{
ceiling = middle - 1;
}
else
{
// Search failed
break;
}
}
}
return(client);
}