public void Connect(IPeerNeighbor neighbor, ConnectInfo connectInfo)
{
if (this.state == State.Opened)
{
PeerCloseReason none = PeerCloseReason.None;
if ((neighbor.IsInitiator || !connectInfo.HasBody()) || ((neighbor.State != PeerNeighborState.Connecting) && (neighbor.State != PeerNeighborState.Closed)))
{
none = PeerCloseReason.InvalidNeighbor;
}
else if (this.RemoveTimer(neighbor))
{
if (this.neighborManager.ConnectedNeighborCount >= this.config.MaxNeighbors)
{
none = PeerCloseReason.NodeBusy;
}
else if (!PeerValidateHelper.ValidNodeAddress(connectInfo.Address))
{
none = PeerCloseReason.InvalidNeighbor;
}
else
{
PeerCloseReason reason2;
IPeerNeighbor neighbor2;
string action = "http://schemas.microsoft.com/net/2006/05/peer/Refuse";
this.ValidateNeighbor(neighbor, connectInfo.NodeId, out neighbor2, out reason2, out action);
if (neighbor != neighbor2)
{
this.SendWelcome(neighbor);
try
{
neighbor.ListenAddress = connectInfo.Address;
}
catch (ObjectDisposedException exception)
{
DiagnosticUtility.ExceptionUtility.TraceHandledException(exception, TraceEventType.Information);
}
if (!neighbor.TrySetState(PeerNeighborState.Connected) && (neighbor.State < PeerNeighborState.Disconnecting))
{
throw Fx.AssertAndThrow("Neighbor state expected to be >= Disconnecting; it is " + neighbor.State.ToString());
}
if (neighbor2 != null)
{
this.SendTerminatingMessage(neighbor2, action, reason2);
this.neighborManager.CloseNeighbor(neighbor2, reason2, PeerCloseInitiator.LocalNode);
}
}
else
{
none = reason2;
}
}
}
if (none != PeerCloseReason.None)
{
this.SendTerminatingMessage(neighbor, "http://schemas.microsoft.com/net/2006/05/peer/Refuse", none);
this.neighborManager.CloseNeighbor(neighbor, none, PeerCloseInitiator.LocalNode);
}
}
}
//<Implementation of PeerConnector.IPeerConnectorContract>
// Process Connect from the neighbor
public void Connect(IPeerNeighbor neighbor, ConnectInfo connectInfo)
{
// Don't bother processing the message if Connector has closed
if (this.state != State.Opened)
return;
PeerCloseReason closeReason = PeerCloseReason.None;
// A connect message should only be received by a responder neighbor that is
// in Connecting state. If not, we close the neighbor without bothering
// to send a Refuse message
// A malicious neighbor can format a message with a null connectInfo as an argument
if (neighbor.IsInitiator || !connectInfo.HasBody() || (neighbor.State != PeerNeighborState.Connecting &&
neighbor.State != PeerNeighborState.Closed))
{
closeReason = PeerCloseReason.InvalidNeighbor;
}
// Remove the timer from the timer table for this neighbor. If the timer is not
// present, the neighbor is already being closed and the Connect message should
// be ignored.
else if (RemoveTimer(neighbor))
{
// Determine if Welcome or Refuse should be sent
// Refuse if node has maximum allowed connected neighbors?
if (this.neighborManager.ConnectedNeighborCount >= this.config.MaxNeighbors)
closeReason = PeerCloseReason.NodeBusy;
else
{
// Deserialization failed or connect info is invalid?
if (!PeerValidateHelper.ValidNodeAddress(connectInfo.Address))
{
closeReason = PeerCloseReason.InvalidNeighbor;
}
else
{
// Determine if neighbor should be accepted.
PeerCloseReason closeReason2;
IPeerNeighbor neighborToClose;
string action = PeerStrings.RefuseAction;
ValidateNeighbor(neighbor, connectInfo.NodeId, out neighborToClose, out closeReason2, out action);
if (neighbor != neighborToClose) // new neighbor should be accepted
{
SendWelcome(neighbor);
try
{
neighbor.ListenAddress = connectInfo.Address;
}
catch (ObjectDisposedException e)
{
DiagnosticUtility.TraceHandledException(e, TraceEventType.Information);
}
if (!neighbor.TrySetState(PeerNeighborState.Connected))
if (!(neighbor.State >= PeerNeighborState.Disconnecting))
{
throw Fx.AssertAndThrow("Neighbor state expected to be >= Disconnecting; it is " + neighbor.State.ToString());
}
if (neighborToClose != null)
{
// The other neighbor should be closed
SendTerminatingMessage(neighborToClose, action, closeReason2);
this.neighborManager.CloseNeighbor(neighborToClose, closeReason2, PeerCloseInitiator.LocalNode);
}
}
else
closeReason = closeReason2;
}
}
}
if (closeReason != PeerCloseReason.None)
{
SendTerminatingMessage(neighbor, PeerStrings.RefuseAction, closeReason);
this.neighborManager.CloseNeighbor(neighbor, closeReason, PeerCloseInitiator.LocalNode);
}
}
public void Connect(IPeerNeighbor neighbor, ConnectInfo connectInfo)
{
if (this.state == State.Opened)
{
PeerCloseReason none = PeerCloseReason.None;
if ((neighbor.IsInitiator || !connectInfo.HasBody()) || ((neighbor.State != PeerNeighborState.Connecting) && (neighbor.State != PeerNeighborState.Closed)))
{
none = PeerCloseReason.InvalidNeighbor;
}
else if (this.RemoveTimer(neighbor))
{
if (this.neighborManager.ConnectedNeighborCount >= this.config.MaxNeighbors)
{
none = PeerCloseReason.NodeBusy;
}
else if (!PeerValidateHelper.ValidNodeAddress(connectInfo.Address))
{
none = PeerCloseReason.InvalidNeighbor;
}
else
{
PeerCloseReason reason2;
IPeerNeighbor neighbor2;
string action = "http://schemas.microsoft.com/net/2006/05/peer/Refuse";
this.ValidateNeighbor(neighbor, connectInfo.NodeId, out neighbor2, out reason2, out action);
if (neighbor != neighbor2)
{
this.SendWelcome(neighbor);
try
{
neighbor.ListenAddress = connectInfo.Address;
}
catch (ObjectDisposedException exception)
{
DiagnosticUtility.ExceptionUtility.TraceHandledException(exception, TraceEventType.Information);
}
if (!neighbor.TrySetState(PeerNeighborState.Connected) && (neighbor.State < PeerNeighborState.Disconnecting))
{
throw Fx.AssertAndThrow("Neighbor state expected to be >= Disconnecting; it is " + neighbor.State.ToString());
}
if (neighbor2 != null)
{
this.SendTerminatingMessage(neighbor2, action, reason2);
this.neighborManager.CloseNeighbor(neighbor2, reason2, PeerCloseInitiator.LocalNode);
}
}
else
{
none = reason2;
}
}
}
if (none != PeerCloseReason.None)
{
this.SendTerminatingMessage(neighbor, "http://schemas.microsoft.com/net/2006/05/peer/Refuse", none);
this.neighborManager.CloseNeighbor(neighbor, none, PeerCloseInitiator.LocalNode);
}
}
}
//<Implementation of PeerConnector.IPeerConnectorContract>
// Process Connect from the neighbor
public void Connect(IPeerNeighbor neighbor, ConnectInfo connectInfo)
{
// Don't bother processing the message if Connector has closed
if (this.state != State.Opened)
{
return;
}
PeerCloseReason closeReason = PeerCloseReason.None;
// A connect message should only be received by a responder neighbor that is
// in Connecting state. If not, we close the neighbor without bothering
// to send a Refuse message
// A malicious neighbor can format a message with a null connectInfo as an argument
if (neighbor.IsInitiator || !connectInfo.HasBody() || (neighbor.State != PeerNeighborState.Connecting &&
neighbor.State != PeerNeighborState.Closed))
{
closeReason = PeerCloseReason.InvalidNeighbor;
}
// Remove the timer from the timer table for this neighbor. If the timer is not
// present, the neighbor is already being closed and the Connect message should
// be ignored.
else if (RemoveTimer(neighbor))
{
// Determine if Welcome or Refuse should be sent
// Refuse if node has maximum allowed connected neighbors?
if (this.neighborManager.ConnectedNeighborCount >= this.config.MaxNeighbors)
{
closeReason = PeerCloseReason.NodeBusy;
}
else
{
// Deserialization failed or connect info is invalid?
if (!PeerValidateHelper.ValidNodeAddress(connectInfo.Address))
{
closeReason = PeerCloseReason.InvalidNeighbor;
}
else
{
// Determine if neighbor should be accepted.
PeerCloseReason closeReason2;
IPeerNeighbor neighborToClose;
string action = PeerStrings.RefuseAction;
ValidateNeighbor(neighbor, connectInfo.NodeId, out neighborToClose, out closeReason2, out action);
if (neighbor != neighborToClose) // new neighbor should be accepted
{
SendWelcome(neighbor);
try
{
neighbor.ListenAddress = connectInfo.Address;
}
catch (ObjectDisposedException e)
{
DiagnosticUtility.TraceHandledException(e, TraceEventType.Information);
}
if (!neighbor.TrySetState(PeerNeighborState.Connected))
{
if (!(neighbor.State >= PeerNeighborState.Disconnecting))
{
throw Fx.AssertAndThrow("Neighbor state expected to be >= Disconnecting; it is " + neighbor.State.ToString());
}
}
if (neighborToClose != null)
{
// The other neighbor should be closed
SendTerminatingMessage(neighborToClose, action, closeReason2);
this.neighborManager.CloseNeighbor(neighborToClose, closeReason2, PeerCloseInitiator.LocalNode);
}
}
else
{
closeReason = closeReason2;
}
}
}
}
if (closeReason != PeerCloseReason.None)
{
SendTerminatingMessage(neighbor, PeerStrings.RefuseAction, closeReason);
this.neighborManager.CloseNeighbor(neighbor, closeReason, PeerCloseInitiator.LocalNode);
}
}