public DhtManager(int localServicePort, IDhtConnectionManager connectionManager, NetProxy proxy, IEnumerable <EndPoint> ipv4BootstrapNodes, IEnumerable <EndPoint> ipv6BootstrapNodes, IEnumerable <EndPoint> torBootstrapNodes, string torOnionAddress, bool enableTorMode)
{
_localServicePort = localServicePort;
//init internet dht nodes
_ipv4InternetDhtNode = new DhtNode(connectionManager, new IPEndPoint(IPAddress.Any, localServicePort));
_ipv6InternetDhtNode = new DhtNode(connectionManager, new IPEndPoint(IPAddress.IPv6Any, localServicePort));
//add known bootstrap nodes
_ipv4InternetDhtNode.AddNode(ipv4BootstrapNodes);
_ipv6InternetDhtNode.AddNode(ipv6BootstrapNodes);
if (enableTorMode)
{
//init tor dht node
_torInternetDhtNode = new DhtNode(connectionManager, new DomainEndPoint(torOnionAddress, localServicePort));
//add known bootstrap nodes
_torInternetDhtNode.AddNode(torBootstrapNodes);
//set higher timeout value for internet and tor DHT nodes since they will be using tor network
_ipv4InternetDhtNode.QueryTimeout = 10000;
_ipv6InternetDhtNode.QueryTimeout = 10000;
_torInternetDhtNode.QueryTimeout = 10000;
}
else
{
//start network watcher
_networkWatcher = new Timer(NetworkWatcherAsync, null, 1000, NETWORK_WATCHER_INTERVAL);
}
//add bootstrap nodes via web
_bootstrapRetryTimer = new Timer(delegate(object state)
{
try
{
using (WebClientEx wC = new WebClientEx())
{
wC.Proxy = proxy;
wC.Timeout = 10000;
using (BinaryReader bR = new BinaryReader(new MemoryStream(wC.DownloadData(DHT_BOOTSTRAP_URL))))
{
int count = bR.ReadByte();
for (int i = 0; i < count; i++)
{
AddNode(EndPointExtension.Parse(bR));
}
}
}
//bootstrap success, stop retry timer
_bootstrapRetryTimer.Dispose();
}
catch (Exception ex)
{
Debug.Write(this.GetType().Name, ex);
}
}, null, BOOTSTRAP_RETRY_TIMER_INITIAL_INTERVAL, BOOTSTRAP_RETRY_TIMER_INTERVAL);
}
public DhtNode(IDhtConnectionManager manager, EndPoint nodeEP)
{
_manager = manager;
switch (nodeEP.AddressFamily)
{
case AddressFamily.InterNetwork:
case AddressFamily.InterNetworkV6:
if (IPAddress.IsLoopback((nodeEP as IPEndPoint).Address))
{
_currentNode = new CurrentNode(BinaryNumber.GenerateRandomNumber256(), nodeEP);
}
else
{
_currentNode = new CurrentNode(nodeEP);
}
break;
case AddressFamily.Unspecified:
_currentNode = new CurrentNode(nodeEP);
break;
default:
throw new NotSupportedException();
}
//init routing table
_routingTable = new KBucket(_currentNode);
//start health timer
_healthTimer = new Timer(delegate(object state)
{
try
{
//remove expired data
_currentNode.RemoveExpiredPeers();
//check contact health
_routingTable.CheckContactHealth(this);
//refresh buckets
_routingTable.RefreshBucket(this);
//find closest contacts for current node id
NodeContact[] initialContacts = _routingTable.GetKClosestContacts(_currentNode.NodeId, true);
if (initialContacts.Length > 0)
{
QueryFindNode(initialContacts, _currentNode.NodeId); //query manager auto add contacts that respond
}
}
catch (Exception ex)
{
Debug.Write(this.GetType().Name, ex);
}
}, null, HEALTH_CHECK_TIMER_INITIAL_INTERVAL, HEALTH_CHECK_TIMER_INTERVAL);
}
