/// <summary>
/// Called when announce is requested.
/// </summary>
protected override void OnAnnounce()
{
AnnounceResponseMessage message;
Uri uri;
this.OnAnnouncing(this, EventArgs.Empty);
try
{
uri = this.GetUri();
Debug.WriteLine($"{this.TrackerUri} -> {uri}");
if (AnnounceResponseMessage.TryDecode(uri.ExecuteBinaryRequest(), out message))
{
Debug.WriteLine($"{this.TrackerUri} <- {message}");
this.UpdateInterval = message.UpdateInterval;
this.OnAnnounced(this, new AnnouncedEventArgs(message.UpdateInterval, message.LeecherCount, message.SeederCount, message.Peers));
}
}
catch (Exception ex)
{
Debug.WriteLine($"could not send message to HTTP tracker {this.TrackerUri} for torrent {this.TorrentInfoHash}: {ex.Message}");
}
}
public void AnnounceResponseMessage_TryDecode()
{
AnnounceResponseMessage message;
byte[] data = "00000001 00003300 00000002 00000003 00000004 09080706 2002 01020304 3003".Replace(" ", string.Empty).ToByteArray();
if (AnnounceResponseMessage.TryDecode(data, 0, out message))
{
Assert.AreEqual(32, message.Length);
Assert.AreEqual(1, (int)message.Action);
Assert.AreEqual(13056, message.TransactionId);
Assert.AreEqual(2, message.Interval.TotalSeconds);
Assert.AreEqual(3, message.LeecherCount);
Assert.AreEqual(4, message.SeederCount);
Assert.AreEqual(2, message.Peers.Count());
Assert.AreEqual(new IPEndPoint(IPAddress.Parse("9.8.7.6"), 8194), message.Peers.ElementAt(0));
Assert.AreEqual(new IPEndPoint(IPAddress.Parse("1.2.3.4"), 12291), message.Peers.ElementAt(1));
CollectionAssert.AreEqual(data, message.Encode());
}
else
{
Assert.Fail();
}
}