public GossipClusterMember(ulong localNodeId, ulong remoteNodeId, IPEndPoint remoteEndPoint, IGossipAuthenticator authenticator, params string[] tags)
{
if (remoteEndPoint == null) throw new ArgumentNullException("remoteEndPoint");
if (authenticator == null) throw new ArgumentNullException("authenticator");
_maxConnectionInactivity = TimeSpan.FromMinutes(5);
_timerRemoveInactiveConnections = new Timer(RemoveInactiveConnections, null, _maxConnectionInactivity, _maxConnectionInactivity);
LocalNodeId = localNodeId;
RemoteNodeId = remoteNodeId;
RemoteEndPoint = remoteEndPoint;
Authenticator = authenticator;
Tags = new HashSet<string>((tags ?? new string[0]).Select(x => (x ?? "").ToLowerInvariant()));
}
public GossipClusterMember(ulong localNodeId, ulong remoteNodeId, IPEndPoint remoteEndPoint, IGossipAuthenticator authenticator, params string[] tags)
{
if (remoteEndPoint == null)
{
throw new ArgumentNullException("remoteEndPoint");
}
if (authenticator == null)
{
throw new ArgumentNullException("authenticator");
}
_maxConnectionInactivity = TimeSpan.FromMinutes(5);
_timerRemoveInactiveConnections = new Timer(RemoveInactiveConnections, null, _maxConnectionInactivity, _maxConnectionInactivity);
LocalNodeId = localNodeId;
RemoteNodeId = remoteNodeId;
RemoteEndPoint = remoteEndPoint;
Authenticator = authenticator;
Tags = new HashSet <string>((tags ?? new string[0]).Select(x => (x ?? "").ToLowerInvariant()));
}
public async Task<bool?> RequestAuthentication(IGossipAuthenticator authenticator)
{
var randomNumber = RandomNumbers.Complex(5);
var challenge = BitConverter.GetBytes(randomNumber);
await Stream.WriteAsync(LocalNodeId);
await Stream.WriteAsync(challenge, 0, challenge.Length);
RecordActivity();
var expected = authenticator.GenerateHash(challenge);
RemoteNodeId = await Stream.ReadUInt64Async();
var response = new byte[expected.Length];
var read = await Stream.ReadAsync(response, 0, response.Length);
if (read == 0) return null;
RecordActivity();
if (read != response.Length) return false;
if (!expected.SequenceEqual(response)) return false;
StartReadingMessageData();
IsAuthenticated = true;
return true;
}
private async Task RespondToAuthenticationRequestAsync(IGossipAuthenticator authenticator)
{
RemoteNodeId = await Stream.ReadUInt64Async();
RecordActivity();
var challenge = new byte[8];
var read = await Stream.ReadAsync(challenge, 0, challenge.Length);
if (read != 8)
{
return;
}
await Stream.WriteAsync(LocalNodeId);
byte[] sendBuffer = authenticator.GenerateHash(challenge);
await Stream.WriteAsync(sendBuffer, 0, sendBuffer.Length);
RecordActivity();
IsAuthenticated = true;
StartReadingMessageData();
}
public async Task <bool?> RequestAuthentication(IGossipAuthenticator authenticator)
{
var randomNumber = RandomNumbers.Complex(5);
var challenge = BitConverter.GetBytes(randomNumber);
await Stream.WriteAsync(LocalNodeId);
await Stream.WriteAsync(challenge, 0, challenge.Length);
RecordActivity();
var expected = authenticator.GenerateHash(challenge);
RemoteNodeId = await Stream.ReadUInt64Async();
var response = new byte[expected.Length];
var read = await Stream.ReadAsync(response, 0, response.Length);
if (read == 0)
{
return(null);
}
RecordActivity();
if (read != response.Length)
{
return(false);
}
if (!expected.SequenceEqual(response))
{
return(false);
}
StartReadingMessageData();
IsAuthenticated = true;
return(true);
}
private async Task RespondToAuthenticationRequestAsync(IGossipAuthenticator authenticator)
{
RemoteNodeId = await Stream.ReadUInt64Async();
RecordActivity();
var challenge = new byte[8];
var read = await Stream.ReadAsync(challenge, 0, challenge.Length);
if (read != 8) return;
await Stream.WriteAsync(LocalNodeId);
byte[] sendBuffer = authenticator.GenerateHash(challenge);
await Stream.WriteAsync(sendBuffer, 0, sendBuffer.Length);
RecordActivity();
IsAuthenticated = true;
StartReadingMessageData();
}
public static async Task<GossipConnection> ConnectAsync(ulong localNodeId, IPEndPoint remoteEndPoint, IGossipAuthenticator authenticator, Action<GossipConnection> onDisconnected = null)
{
var client = new TcpClient();
await client.ConnectAsync(remoteEndPoint.Address, remoteEndPoint.Port);
var connection = new GossipConnection(client);
connection.LocalNodeId = localNodeId;
if (onDisconnected != null) connection.OnDisconnected += onDisconnected;
await connection.RespondToAuthenticationRequestAsync(authenticator);
return connection;
}
public GossipClusterMember(ulong localNodeId, IGossipNodeConfig config, IGossipAuthenticator authenticator)
: this(localNodeId, config.NodeId, config.BindToEndPoint, authenticator, config.Tags)
{
}
public static async Task <GossipConnection> ConnectAsync(ulong localNodeId, IPEndPoint remoteEndPoint, IGossipAuthenticator authenticator, Action <GossipConnection> onDisconnected = null)
{
var client = new TcpClient();
await client.ConnectAsync(remoteEndPoint.Address, remoteEndPoint.Port);
var connection = new GossipConnection(client);
connection.LocalNodeId = localNodeId;
if (onDisconnected != null)
{
connection.OnDisconnected += onDisconnected;
}
await connection.RespondToAuthenticationRequestAsync(authenticator);
return(connection);
}
public GossipClusterMember Join(GossipConnection connection, IPEndPoint endPoint, IGossipAuthenticator authenticator, params string[] tags)
{
var clusterMember = _members.GetOrAdd(connection.RemoteNodeId, id => new GossipClusterMember(NodeConfig.NodeId, connection.RemoteNodeId, endPoint, authenticator, tags));
clusterMember.AttachOpenConnection(connection);
return clusterMember;
}
public GossipClusterMember(ulong localNodeId, IGossipNodeConfig config, IGossipAuthenticator authenticator)
: this(localNodeId, config.NodeId, config.BindToEndPoint, authenticator, config.Tags)
{
}
public GossipClusterMember Join(GossipConnection connection, IPEndPoint endPoint, IGossipAuthenticator authenticator, params string[] tags)
{
var clusterMember = _members.GetOrAdd(connection.RemoteNodeId, id => new GossipClusterMember(NodeConfig.NodeId, connection.RemoteNodeId, endPoint, authenticator, tags));
clusterMember.AttachOpenConnection(connection);
return(clusterMember);
}
