public void sendAndReceiveHello(Peer neighbor, Ring ring)
{
byte[] message = new byte[Constants.WRITEBUFFSIZE];
byte[] reply = new byte[Constants.READBUFFSIZE];
MemoryStream stream;
try
{
User user = User.getInstance();
BinaryFormatter serializer = new BinaryFormatter();
stream = new MemoryStream(message);
NetLib.insertEntropyHeader(serializer, stream);
RingInfo ringInfo = user.findRingInfo(ring.ringID);
serializer.Serialize(stream, Constants.MessageTypes.MSG_HELLO);
serializer.Serialize(stream, ring.ringID);
serializer.Serialize(stream, ringInfo.token);
serializer.Serialize(stream, new Peer(user.node, user.publicUserInfo, ringInfo.IE));
reply = NetLib.communicate(neighbor.node.syncCommunicationPoint, message, true);
Debug.Assert(reply != null, "Neighbor did not reply to Hello");
BinaryFormatter deserializer = new BinaryFormatter();
stream = new MemoryStream(reply);
NetLib.bypassEntropyHeader(deserializer, stream);
Constants.MessageTypes replyMsg = (Constants.MessageTypes)deserializer.Deserialize(stream);
switch(replyMsg)
{
case Constants.MessageTypes.MSG_HELLO:
uint ringID = (uint)deserializer.Deserialize(stream);
if(ringID != ring.ringID)
return;
ulong token = (ulong)deserializer.Deserialize(stream);
Peer peer = (Peer)deserializer.Deserialize(stream);
IPEndPoint neighborIPEndPoint = peer.node.syncCommunicationPoint;
if(!neighborIPEndPoint.Address.Equals(neighbor.node.syncCommunicationPoint.Address))
//REVISIT: alert security system
return;
neighbor.node.syncCommunicationPoint = neighborIPEndPoint;
neighbor.node.asyncCommunicationPoint = peer.node.asyncCommunicationPoint;
neighbor.IE = peer.IE;
break;
case Constants.MessageTypes.MSG_DISCONNECT:
neighbor.IE = null;
break;
default:
neighbor.IE = null;
break;
}
}
catch (Exception e)
{
int x = 2;
}
}
public RingInfo(Ring __ring, string __userName, string __password)
{
ring = __ring;
userName = __userName;
password = System.Text.Encoding.ASCII.GetBytes(__password);
neighbors = new ArrayList(Constants.MIN_NUM_NEIGHBORS);
}
public ServerRingInfo(Ring __ring, ClientManager __ringClientManager,
AccountsManager __ringAccountsManager, PeerManager __ringPeerManager,
ServerPolicyManager __serverPolicyManager)
{
ring = __ring;
ringClientManager = __ringClientManager;
ringAccountsManager = __ringAccountsManager;
ringPeerManager = __ringPeerManager;
serverPolicyManager = __serverPolicyManager;
nextSessionID = 1;
}
private void getRingNeighbors(IPEndPoint lord, Ring ring)
{
byte[] message = new byte[Constants.WRITEBUFFSIZE];
byte[] reply = new byte[Constants.READBUFFSIZE];
MemoryStream stream;
try
{
User user = User.getInstance();
BinaryFormatter serializer = new BinaryFormatter();
stream = new MemoryStream(message);
NetLib.insertEntropyHeader(serializer, stream);
serializer.Serialize(stream, Constants.MessageTypes.MSG_RINGLOGIN);
serializer.Serialize(stream, ring.ringID);
RingInfo ringInfo = user.findRingInfo(ring.ringID);
serializer.Serialize(stream, ringInfo.userName);
serializer.Serialize(stream, SecurityLib.encrypt(ringInfo.password));
serializer.Serialize(stream, user.node.syncCommunicationPoint);
serializer.Serialize(stream, ringInfo.IE);
reply = NetLib.communicate(lord, message, true);
BinaryFormatter deserializer = new BinaryFormatter();
stream = new MemoryStream(reply);
NetLib.bypassEntropyHeader(deserializer, stream);
Constants.MessageTypes replyMsg = (Constants.MessageTypes)deserializer.Deserialize(stream);
Constants.QueryHandlerType howToHandleQuery;
switch(replyMsg)
{
case Constants.MessageTypes.MSG_RINGNEIGHBORS:
ringInfo.token = (ulong)serializer.Deserialize(stream);
howToHandleQuery = (Constants.QueryHandlerType)serializer.Deserialize(stream);
ringInfo.queryServer = (IPEndPoint)serializer.Deserialize(stream);
switch(howToHandleQuery)
{
case Constants.QueryHandlerType.SERVER_FORM_QUERY:
ringInfo.searchRing =
new RingInfo.ringSearcher(ringInfo.searchRingServerFormQuery);
break;
case Constants.QueryHandlerType.SERVER_RESOLVE_QUERY:
ringInfo.searchRing =
new RingInfo.ringSearcher(ringInfo.searchRingServerResolveQuery);
break;
case Constants.QueryHandlerType.DISTRIBUTED_PEER_QUERY:
ringInfo.searchRing =
new RingInfo.ringSearcher(ringInfo.searchRingDistributedP2PEntropy);
break;
}
Peer[] neighbors = (Peer[])deserializer.Deserialize(stream);
foreach (Peer neighbor in neighbors)
ringInfo.neighbors.Add(new Neighbor(neighbor, new NeighborProxy()));
break;
default:
ringInfo.neighbors = null;
break;
}
}
catch (Exception e)
{
int x = 2;
}
}
