public override async void Announce(AnnounceParameters parameters, object state)
{
try
{
await _semaphoreSlim.WaitAsync();
try
{
if (!_hasConnected)
{
await ConnectAsync();
}
await DoAnnounceAsync(parameters, state);
}
finally
{
_semaphoreSlim.Release();
}
}
catch (Exception ex)
{
FailureMessage = ex.Message;
DoAnnounceComplete(false, state, new List <Peer>());
}
}
public override async void Announce(AnnounceParameters parameters, object state)
{
var peers = new List <Peer>();
var requestUri = CreateAnnounceString(parameters);
try
{
using (var httpClient = new HttpClient())
{
httpClient.Timeout = RequestTimeout;
var request = new HttpRequestMessage(HttpMethod.Get, requestUri);
request.Headers.UserAgent.ParseAdd(VersionInfo.ClientVersion);
RaiseBeforeAnnounce();
var httpResponseMessage = await httpClient.SendAsync(request);
if (httpResponseMessage.StatusCode == HttpStatusCode.OK)
{
FailureMessage = "";
WarningMessage = "";
try
{
var stream = await httpResponseMessage.Content.ReadAsStreamAsync();
if (stream.Length > 0L && parameters.ClientEvent != TorrentEvent.Stopped)
{
HandleAnnounce(DecodeResponse(stream), peers);
}
Status = TrackerState.Ok;
}
catch
{
Status = TrackerState.InvalidResponse;
FailureMessage = "Failed to open tracker response.";
}
}
else
{
FailureMessage = string.Format("The tracker could not be contacted. {0}",
httpResponseMessage.StatusCode);
Status = TrackerState.Offline;
}
}
}
catch (WebException)
{
Status = TrackerState.Offline;
FailureMessage = "The tracker could not be contacted";
}
catch
{
Status = TrackerState.InvalidResponse;
FailureMessage = "The tracker returned an invalid or incomplete response";
}
finally
{
RaiseAnnounceComplete(new AnnounceResponseEventArgs(this, state, string.IsNullOrEmpty(FailureMessage), peers));
}
}
public override async void Announce(AnnounceParameters parameters, object state)
{
var peers = new List<Peer>();
var requestUri = CreateAnnounceString(parameters);
try
{
using (var httpClient = new HttpClient())
{
httpClient.Timeout = RequestTimeout;
var request = new HttpRequestMessage(HttpMethod.Get, requestUri);
request.Headers.UserAgent.ParseAdd(VersionInfo.ClientVersion);
RaiseBeforeAnnounce();
var httpResponseMessage = await httpClient.SendAsync(request);
if (httpResponseMessage.StatusCode == HttpStatusCode.OK)
{
FailureMessage = "";
WarningMessage = "";
try
{
var stream = await httpResponseMessage.Content.ReadAsStreamAsync();
if (stream.Length > 0L && parameters.ClientEvent != TorrentEvent.Stopped)
HandleAnnounce(DecodeResponse(stream), peers);
Status = TrackerState.Ok;
}
catch
{
Status = TrackerState.InvalidResponse;
FailureMessage = "Failed to open tracker response.";
}
}
else
{
FailureMessage = string.Format("The tracker could not be contacted. {0}",
httpResponseMessage.StatusCode);
Status = TrackerState.Offline;
}
}
}
catch (WebException)
{
Status = TrackerState.Offline;
FailureMessage = "The tracker could not be contacted";
}
catch
{
Status = TrackerState.InvalidResponse;
FailureMessage = "The tracker returned an invalid or incomplete response";
}
finally
{
RaiseAnnounceComplete(new AnnounceResponseEventArgs(this, state, string.IsNullOrEmpty(FailureMessage), peers));
}
}
private Uri CreateAnnounceString(AnnounceParameters parameters)
{
var b = new UriQueryBuilder(Uri);
b.Add("info_hash", parameters.InfoHash.UrlEncode())
.Add("peer_id", parameters.PeerId)
.Add("port", parameters.Port)
.Add("uploaded", parameters.BytesUploaded)
.Add("downloaded", parameters.BytesDownloaded)
.Add("left", parameters.BytesLeft)
.Add("compact", 1)
.Add("numwant", 100);
if (parameters.SupportsEncryption)
{
b.Add("supportcrypto", 1);
}
if (parameters.RequireEncryption)
{
b.Add("requirecrypto", 1);
}
if (!b.Contains("key"))
{
b.Add("key", Key);
}
if (!string.IsNullOrEmpty(parameters.Ipaddress))
{
b.Add("ip", parameters.Ipaddress);
}
// If we have not successfully sent the started event to this tier, override the passed in started event
// Otherwise append the event if it is not "none"
//if (!parameters.Id.Tracker.Tier.SentStartedEvent)
//{
// sb.Append("&event=started");
// parameters.Id.Tracker.Tier.SendingStartedEvent = true;
//}
if (parameters.ClientEvent != TorrentEvent.None)
{
b.Add("event", parameters.ClientEvent.ToString().ToLower());
}
if (!string.IsNullOrEmpty(_trackerId))
{
b.Add("trackerid", _trackerId);
}
return(b.ToUri());
}
private async Task DoAnnounceAsync(AnnounceParameters parameter, object state)
{
var announceMessage = new AnnounceMessage(DateTime.Now.GetHashCode(), _connectionId, parameter);
var responseBytes = await SendAndReceiveAsync(announceMessage);
var msg = Receive(announceMessage, responseBytes);
if (!(msg is AnnounceResponseMessage))
{
throw new Exception(FailureMessage);
}
MinUpdateInterval = ((AnnounceResponseMessage)msg).Interval;
CompleteAnnounce(msg, state);
}
public AnnounceMessage(int transactionId, long connectionId, AnnounceParameters parameters)
: base(1, transactionId)
{
ConnectionId = connectionId;
if (parameters == null)
return;
Downloaded = parameters.BytesDownloaded;
Infohash = parameters.InfoHash;
Ip = 0;
Key = (uint) DateTime.Now.GetHashCode(); // FIXME: Don't do this! It should be constant
Left = parameters.BytesLeft;
NumWanted = 50;
PeerId = parameters.PeerId;
Port = (ushort) parameters.Port;
TorrentEvent = parameters.ClientEvent;
Uploaded = parameters.BytesUploaded;
}
public override async void Announce(AnnounceParameters parameters, object state)
{
try
{
await _semaphoreSlim.WaitAsync();
try
{
if (!_hasConnected)
await ConnectAsync();
await DoAnnounceAsync(parameters, state);
}
finally
{
_semaphoreSlim.Release();
}
}
catch (Exception ex)
{
FailureMessage = ex.Message;
DoAnnounceComplete(false, state, new List<Peer>());
}
}
public abstract void Announce(AnnounceParameters parameters, object state);
private Uri CreateAnnounceString(AnnounceParameters parameters)
{
var b = new UriQueryBuilder(Uri);
b.Add("info_hash", parameters.InfoHash.UrlEncode())
.Add("peer_id", parameters.PeerId)
.Add("port", parameters.Port)
.Add("uploaded", parameters.BytesUploaded)
.Add("downloaded", parameters.BytesDownloaded)
.Add("left", parameters.BytesLeft)
.Add("compact", 1)
.Add("numwant", 100);
if (parameters.SupportsEncryption)
b.Add("supportcrypto", 1);
if (parameters.RequireEncryption)
b.Add("requirecrypto", 1);
if (!b.Contains("key"))
b.Add("key", Key);
if (!string.IsNullOrEmpty(parameters.Ipaddress))
b.Add("ip", parameters.Ipaddress);
// If we have not successfully sent the started event to this tier, override the passed in started event
// Otherwise append the event if it is not "none"
//if (!parameters.Id.Tracker.Tier.SentStartedEvent)
//{
// sb.Append("&event=started");
// parameters.Id.Tracker.Tier.SendingStartedEvent = true;
//}
if (parameters.ClientEvent != TorrentEvent.None)
b.Add("event", parameters.ClientEvent.ToString().ToLower());
if (!string.IsNullOrEmpty(_trackerId))
b.Add("trackerid", _trackerId);
return b.ToUri();
}
private async Task DoAnnounceAsync(AnnounceParameters parameter, object state)
{
var announceMessage = new AnnounceMessage(DateTime.Now.GetHashCode(), _connectionId, parameter);
var responseBytes = await SendAndReceiveAsync(announceMessage);
var msg = Receive(announceMessage, responseBytes);
if (!(msg is AnnounceResponseMessage))
throw new Exception(FailureMessage);
MinUpdateInterval = ((AnnounceResponseMessage) msg).Interval;
CompleteAnnounce(msg, state);
}
public abstract void Announce(AnnounceParameters parameters, object state);
