/// <summary>
/// Adds client's connection to the list of active connections.
/// </summary>
/// <param name="connection">Client's connection to add.</param>
private void AddClientConnection(NetworkPeerConnection connection)
{
this.logger.LogTrace("({0}.{1}:{2})", nameof(connection), nameof(connection.Id), connection.Id);
this.connectionsById.AddOrReplace(connection.Id, connection);
connection.ShutdownComplete.Task.ContinueWith(unused => this.RemoveConnectedClient(connection));
this.logger.LogTrace("(-)");
}
/// <summary>
/// Dummy constructor for testing only.
/// </summary>
/// <param name="dateTimeProvider">Provider of time functions.</param>
/// <param name="loggerFactory">Provider of time functions.</param>
/// <remarks>TODO: Remove this constructor as soon as we can mock the node in tests.</remarks>
public NetworkPeer(IDateTimeProvider dateTimeProvider, ILoggerFactory loggerFactory)
{
this.dateTimeProvider = dateTimeProvider;
this.loggerFactory = loggerFactory;
this.logger = loggerFactory.CreateLogger(this.GetType().FullName);
this.Behaviors = new NetworkPeerBehaviorsCollection(this);
this.PeerAddress = new NetworkAddress();
this.Connection = new NetworkPeerConnection(null, this, new TcpClient(), 0, this.ProcessMessageAsync, this.dateTimeProvider, this.loggerFactory);
}
/// <summary>
/// Removes a connection from the list of active clients' connection.
/// </summary>
/// <param name="connection">Client to remove and disconnect.</param>
private void RemoveConnectedClient(NetworkPeerConnection connection)
{
this.logger.LogTrace("({0}.{1}:{2})", nameof(connection), nameof(connection.Id), connection.Id);
if (!this.connectionsById.TryRemove(connection.Id, out NetworkPeerConnection unused))
{
this.logger.LogError("Internal data integration error.");
}
this.logger.LogTrace("(-)");
}
/// <summary>
/// Initializes an instance of the object for outbound network peers.
/// </summary>
/// <param name="peerAddress">Information about the peer including its network address, protocol version, time of last contact.</param>
/// <param name="network">Specification of the network the node runs on - regtest/testnet/mainnet.</param>
/// <param name="parameters">Various settings and requirements related to how the connections with peers are going to be established, or <c>null</c> to use default parameters.</param>
/// <param name="networkPeerFactory">Factory for creating P2P network peers.</param>
/// <param name="dateTimeProvider">Provider of time functions.</param>
/// <param name="loggerFactory">Factory for creating loggers.</param>
public NetworkPeer(NetworkAddress peerAddress, Network network, NetworkPeerConnectionParameters parameters, INetworkPeerFactory networkPeerFactory, IDateTimeProvider dateTimeProvider, ILoggerFactory loggerFactory)
: this(false, peerAddress, network, parameters, dateTimeProvider, loggerFactory)
{
TcpClient client = new TcpClient(AddressFamily.InterNetworkV6);
client.Client.SetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.IPv6Only, false);
client.Client.ReceiveBufferSize = parameters.ReceiveBufferSize;
client.Client.SendBufferSize = parameters.SendBufferSize;
this.Connection = networkPeerFactory.CreateNetworkPeerConnection(this, client, this.ProcessMessageAsync);
this.logger = loggerFactory.CreateLogger(this.GetType().FullName, $"[{this.Connection.Id}-{peerAddress.Endpoint}] ");
this.logger.LogTrace("()");
this.logger.LogTrace("(-)");
}
/// <summary>
/// Initializes an instance of the object for inbound network peers with already established connection.
/// </summary>
/// <param name="peerAddress">Information about the peer including its network address, protocol version, time of last contact.</param>
/// <param name="network">Specification of the network the node runs on - regtest/testnet/mainnet.</param>
/// <param name="parameters">Various settings and requirements related to how the connections with peers are going to be established, or <c>null</c> to use default parameters.</param>
/// <param name="client">Already connected network client.</param>
/// <param name="peerVersion">Version message payload received from the peer.</param>
/// <param name="dateTimeProvider">Provider of time functions.</param>
/// <param name="loggerFactory">Factory for creating loggers.</param>
public NetworkPeer(NetworkAddress peerAddress, Network network, NetworkPeerConnectionParameters parameters, TcpClient client, IDateTimeProvider dateTimeProvider, INetworkPeerFactory networkPeerFactory, ILoggerFactory loggerFactory)
: this(true, peerAddress, network, parameters, dateTimeProvider, loggerFactory)
{
this.Connection = networkPeerFactory.CreateNetworkPeerConnection(this, client, this.ProcessMessageAsync);
this.logger = loggerFactory.CreateLogger(this.GetType().FullName, $"[{this.Connection.Id}-{peerAddress.Endpoint}] ");
this.logger.LogTrace("()");
this.RemoteSocketEndpoint = this.PeerAddress.Endpoint;
this.RemoteSocketAddress = this.RemoteSocketEndpoint.Address;
this.RemoteSocketPort = this.RemoteSocketEndpoint.Port;
this.ConnectedAt = this.dateTimeProvider.GetUtcNow();
this.logger.LogTrace("Connected to advertised node '{0}'.", this.PeerAddress.Endpoint);
this.State = NetworkPeerState.Connected;
this.InitDefaultBehaviors(this.Parameters);
this.Connection.StartReceiveMessages();
this.logger.LogTrace("(-)");
}