/// <summary>
/// Initializes the torrent engine.
/// </summary>
public static void Initialize()
{
if (isInitialized)
{
return;
}
isInitialized = true;
Log.LogInfo("[Engine] Starting up TorrentEngine.");
if (engineThread != null)
{
engineThread.Join();
engineThread = null;
}
isStopping = false;
workQueueResetEvent.Set();
DiskManager.Initialize();
PeerListener.StartListening();
LocalPeerListener.StartListening();
LocalPeerDiscovery.Initialize();
engineThread = new Thread(EngineLoop);
engineThread.Priority = ThreadPriority.Normal;
engineThread.Name = "TorrentEngineThread";
engineThread.Start();
}
/// <summary>
/// Uninitializes the torrent engine.
/// </summary>
public static void Uninitialize()
{
if (!isInitialized)
{
return;
}
Log.LogInfo("[Engine] Shutting down TorrentEngine.");
isInitialized = false;
isStopping = true;
workQueueResetEvent.Set();
TorrentRegistry.StopAllActiveTorrents();
PeerListener.StopListening();
LocalPeerListener.StopListening();
LocalPeerDiscovery.Uninitialize();
DiskManager.Uninitialize();
if (engineThread != null)
{
engineThread.Join();
engineThread = null;
}
}
private void _localDiscovery_PeerDiscovered(LocalPeerDiscovery sender, IPEndPoint peerEP, BinaryID networkID)
{
lock (_networks)
{
if (_networks.ContainsKey(networkID))
{
_networks[networkID].MakeConnection(peerEP);
}
}
}
int _reNegotiateAfterSeconds = 3600; //1hr
#endregion
#region constructor
public InternalBitChatService(BitChatService service, BitChatProfile profile, Certificate[] trustedRootCertificates, SecureChannelCryptoOptionFlags supportedCryptoOptions)
{
_service = service;
_profile = profile;
_trustedRootCertificates = trustedRootCertificates;
_supportedCryptoOptions = supportedCryptoOptions;
_connectionManager = new ConnectionManager(_profile.LocalEP, ChannelRequest);
LocalPeerDiscovery.StartListener(41733);
_localDiscovery = new LocalPeerDiscovery(_connectionManager.LocalEP.Port);
_localDiscovery.PeerDiscovered += _localDiscovery_PeerDiscovered;
_profile.LocalEP = _connectionManager.LocalEP;
}
private void LocalDiscovery_PeerDiscovered(LocalPeerDiscovery sender, IPEndPoint peerEP, BinaryID networkID)
{
lock (_chats)
{
if (_chats.ContainsKey(networkID))
{
_chats[networkID].Network.MakeConnection(peerEP);
}
else
{
foreach (KeyValuePair <BinaryID, BitChat> chat in _chats)
{
if (networkID.Equals(chat.Value.Network.MaskedPeerEmailAddress))
{
chat.Value.Network.SendInvitation(new IPEndPoint[] { peerEP });
break;
}
}
}
}
}
public void Start()
{
if (_connectionManager != null)
{
return;
}
//set min threads since the default value is too small for client at startup due to multiple chats queuing too many tasks immediately
{
int minWorker, minIOC;
ThreadPool.GetMinThreads(out minWorker, out minIOC);
minWorker = Environment.ProcessorCount * 32;
ThreadPool.SetMinThreads(minWorker, minIOC);
}
//verify root certs
foreach (Certificate trustedCert in _trustedRootCertificates)
{
trustedCert.Verify(_trustedRootCertificates);
}
//verify profile cert
_profile.LocalCertificateStore.Certificate.Verify(_trustedRootCertificates);
//start connection manager
_connectionManager = new ConnectionManager(_profile);
_connectionManager.InternetConnectivityStatusChanged += ConnectionManager_InternetConnectivityStatusChanged;
_connectionManager.BitChatNetworkChannelInvitation += ConnectionManager_BitChatNetworkChannelInvitation;
_connectionManager.BitChatNetworkChannelRequest += ConnectionManager_BitChatNetworkChannelRequest;
_connectionManager.TcpRelayPeersAvailable += ConnectionManager_TcpRelayPeersAvailable;
//start local peer discovery
LocalPeerDiscovery.StartListener(41733);
_localDiscovery = new LocalPeerDiscovery(_connectionManager.LocalPort);
_localDiscovery.PeerDiscovered += LocalDiscovery_PeerDiscovered;
//check inbound invitation tracking
ManageInboundInvitationTracking();
foreach (BitChatProfile.BitChatInfo bitChatInfo in _profile.BitChatInfoList)
{
try
{
BitChatNetwork network;
if (bitChatInfo.Type == BitChatNetworkType.PrivateChat)
{
if (bitChatInfo.PeerEmailAddress == null)
{
network = new BitChatNetwork(_connectionManager, _trustedRootCertificates, _supportedCryptoOptions, bitChatInfo.HashedPeerEmailAddress, bitChatInfo.NetworkID, bitChatInfo.NetworkSecret, bitChatInfo.NetworkStatus, bitChatInfo.InvitationSender, bitChatInfo.InvitationMessage);
}
else
{
network = new BitChatNetwork(_connectionManager, _trustedRootCertificates, _supportedCryptoOptions, bitChatInfo.PeerEmailAddress, bitChatInfo.SharedSecret, bitChatInfo.NetworkID, bitChatInfo.NetworkSecret, bitChatInfo.PeerCertificateList, bitChatInfo.NetworkStatus, bitChatInfo.InvitationSender, bitChatInfo.InvitationMessage);
}
}
else
{
network = new BitChatNetwork(_connectionManager, _trustedRootCertificates, _supportedCryptoOptions, bitChatInfo.NetworkName, bitChatInfo.SharedSecret, bitChatInfo.NetworkID, bitChatInfo.NetworkSecret, bitChatInfo.PeerCertificateList, bitChatInfo.NetworkStatus);
}
BitChat chat = CreateBitChat(network, bitChatInfo.MessageStoreID, bitChatInfo.MessageStoreKey, bitChatInfo.GroupImageDateModified, bitChatInfo.GroupImage, bitChatInfo.SharedFileList, bitChatInfo.TrackerURIs, bitChatInfo.EnableTracking, bitChatInfo.SendInvitation, bitChatInfo.Mute);
_chats.Add(chat.NetworkID, chat);
}
catch
{ }
}
//check profile cert revocation
ThreadPool.QueueUserWorkItem(CheckCertificateRevocationAsync, new Certificate[] { _profile.LocalCertificateStore.Certificate });
//check trusted root cert revocation
ThreadPool.QueueUserWorkItem(CheckCertificateRevocationAsync, _trustedRootCertificates);
}
