public TCPClientClassroomManager(PresenterModel model, TCPConnectionManager connection,
InstructorAdvertisement instructorAdvertisement)
{
this.m_InstructorAdvertisement = instructorAdvertisement;
this.m_Model = model;
this.m_ClientConnected = false;
this.m_Classroom = new ClassroomModel(connection.Protocol, m_InstructorAdvertisement.HumanName, ClassroomModelType.Dynamic);
this.m_Classroom.Changing["Connected"].Add(new PropertyEventHandler(this.HandleConnectedChanging));
}
protected override object SetUpMember(int index, object member)
{
InstructorAdvertisement ia = member as InstructorAdvertisement;
if (ia.Multicast)
{
#if RTP_BUILD
RTPClassroomManager mgr;
if (m_Parent.m_RTPAdvertisedClassrooms.ContainsKey(ia))
{
mgr = (RTPClassroomManager)m_Parent.m_RTPAdvertisedClassrooms[ia];
}
else
{
mgr = new RTPClassroomManager(m_Parent.m_Model, m_Parent.m_RTPConnectionMgr, ia.HumanName, ia.Endpoint, true);
m_Parent.m_RTPAdvertisedClassrooms.Add(ia, mgr);
}
//put it in the model so the UI will see it.
using (Synchronizer.Lock(this.m_Parent.m_RTPConnectionMgr.Protocol.SyncRoot)) {
this.m_Parent.m_RTPConnectionMgr.Protocol.Classrooms.Add(mgr.Classroom);
}
//Set it as the return value to cause it to be supplied as the tag in teardown.
return(mgr);
#else
return(null);
#endif
}
else
{
TCPClientClassroomManager mgr;
//If we don't already have a TCPClientClassroomManager for this endpoint, create one.
if (m_Parent.m_TCPClientClassrooms.ContainsKey(ia))
{
mgr = (TCPClientClassroomManager)m_Parent.m_TCPClientClassrooms[ia];
}
else
{
mgr = new TCPClientClassroomManager(m_Parent.m_Model, m_Parent.m_TCPConnectionMgr, ia);
m_Parent.m_TCPClientClassrooms.Add(ia, mgr);
}
//put it in the model so the UI will see it.
using (Synchronizer.Lock(this.m_Parent.m_TCPConnectionMgr.Protocol.SyncRoot)) {
this.m_Parent.m_TCPConnectionMgr.Protocol.Classrooms.Add(mgr.Classroom);
}
//Set it as the return value to cause it to be supplied as the tag in teardown.
return(mgr);
}
}
public void Remove(InstructorAdvertisement value)
{
List.Remove(value);
}
public void Insert(int index, InstructorAdvertisement value)
{
List.Insert(index, value);
}
public int IndexOf(InstructorAdvertisement value)
{
return List.IndexOf(value);
}
public bool Contains(InstructorAdvertisement value)
{
return List.Contains(value);
}
public int Add(InstructorAdvertisement value)
{
return List.Add(value);
}
/// <summary>
/// Handle one inbound BroadcastMessage
/// </summary>
/// <param name="message"></param>
/// <param name="timestamp"></param>
private void processMessage(BroadcastMessage message, DateTime timestamp)
{
//List<InstructorAdvertisement> nonLocalPublicSubnets = new List<InstructorAdvertisement>();
foreach (IPEndPoint ep in message.EndPoints) {
InstructorAdvertisement ia = new InstructorAdvertisement(ep, message.HumanName, message.PresentationName, message.SenderID, message.ShowIP);
using(Synchronizer.Lock(this.SyncRoot)) {
if (m_InstructorAdvertisements.Contains(ia)) { //We already have the entry, just update the timestamp.
int index = m_InstructorAdvertisements.IndexOf(ia);
m_InstructorAdvertisements[index].Timestamp = DateTime.Now;
continue;
}
if (ep.AddressFamily.Equals(AddressFamily.InterNetwork)) { //IPv4
if (!isPrivateSubnet(ep.Address)) {
//If there are both local and non-local public subnets, keep only the local ones (plus multicast)
if (matchesAnyLocalSubnet(ep.Address)) {
Trace.WriteLine("Adding Instructor Table Entry: " + ia.ToString(), this.GetType().ToString());
m_InstructorAdvertisements.Add(ia); //Not a private subnet, add to the table.
}
else if (isMulticastAddress(ep.Address)) {
Trace.WriteLine("Adding Instructor Table Entry: " + ia.ToString(), this.GetType().ToString());
ia.Multicast = true;
m_InstructorAdvertisements.Add(ia); //Not a private subnet, add to the table.
}
else {
//nonLocalPublicSubnets.Add(ia);
}
}
else {
//If it is a private subnet, the listener also needs to be on that subnet
//In effect, we can't talk to NAT'ed hosts directly unless we are also on the same NAT'ed network.
//Otherwise, we would have to connect to a port forwarding router.
if (matchesAnyLocalSubnet(ep.Address)) {
Trace.WriteLine("Adding Instructor Table Entry: " + ia.ToString(), this.GetType().ToString());
m_InstructorAdvertisements.Add(ia);
}
}
}
else if (ep.AddressFamily.Equals(AddressFamily.InterNetworkV6)) {
if (BroadcastManager.UseIPv6) {
//Don't show any IPv6 entries unless IPv6 is enabled on the local system.
//TODO: To correctly handle link local and site local, we need to do a bit more work here.
Trace.WriteLine("Adding Instructor Table Entry: " + ia.ToString(), this.GetType().ToString());
m_InstructorAdvertisements.Add(ia);
}
}
}
}
//Are there cases were we would want to show the non-local public subnet addresses?
}
/// <summary>
/// Treat all instances with the same endpoint as equal
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public override bool Equals(object obj)
{
InstructorAdvertisement ie = obj as InstructorAdvertisement;
return(Endpoint.Equals(ie.Endpoint));
}
public bool Contains(InstructorAdvertisement value)
{
return(List.Contains(value));
}
public void Remove(InstructorAdvertisement value)
{
List.Remove(value);
}
public void Insert(int index, InstructorAdvertisement value)
{
List.Insert(index, value);
}
public int IndexOf(InstructorAdvertisement value)
{
return(List.IndexOf(value));
}
public int Add(InstructorAdvertisement value)
{
return(List.Add(value));
}
/// <summary>
/// Handle one inbound BroadcastMessage
/// </summary>
/// <param name="message"></param>
/// <param name="timestamp"></param>
private void processMessage(BroadcastMessage message, DateTime timestamp)
{
//List<InstructorAdvertisement> nonLocalPublicSubnets = new List<InstructorAdvertisement>();
foreach (IPEndPoint ep in message.EndPoints)
{
InstructorAdvertisement ia = new InstructorAdvertisement(ep, message.HumanName, message.PresentationName, message.SenderID, message.ShowIP);
using (Synchronizer.Lock(this.SyncRoot)) {
if (m_InstructorAdvertisements.Contains(ia)) //We already have the entry, just update the timestamp.
{
int index = m_InstructorAdvertisements.IndexOf(ia);
m_InstructorAdvertisements[index].Timestamp = DateTime.Now;
continue;
}
if (ep.AddressFamily.Equals(AddressFamily.InterNetwork)) //IPv4
{
if (!isPrivateSubnet(ep.Address))
{
//If there are both local and non-local public subnets, keep only the local ones (plus multicast)
if (matchesAnyLocalSubnet(ep.Address))
{
Trace.WriteLine("Adding Instructor Table Entry: " + ia.ToString(), this.GetType().ToString());
m_InstructorAdvertisements.Add(ia); //Not a private subnet, add to the table.
}
else if (isMulticastAddress(ep.Address))
{
Trace.WriteLine("Adding Instructor Table Entry: " + ia.ToString(), this.GetType().ToString());
ia.Multicast = true;
m_InstructorAdvertisements.Add(ia); //Not a private subnet, add to the table.
}
else
{
//nonLocalPublicSubnets.Add(ia);
}
}
else
{
//If it is a private subnet, the listener also needs to be on that subnet
//In effect, we can't talk to NAT'ed hosts directly unless we are also on the same NAT'ed network.
//Otherwise, we would have to connect to a port forwarding router.
if (matchesAnyLocalSubnet(ep.Address))
{
Trace.WriteLine("Adding Instructor Table Entry: " + ia.ToString(), this.GetType().ToString());
m_InstructorAdvertisements.Add(ia);
}
}
}
else if (ep.AddressFamily.Equals(AddressFamily.InterNetworkV6))
{
if (BroadcastManager.UseIPv6)
{
//Don't show any IPv6 entries unless IPv6 is enabled on the local system.
//TODO: To correctly handle link local and site local, we need to do a bit more work here.
Trace.WriteLine("Adding Instructor Table Entry: " + ia.ToString(), this.GetType().ToString());
m_InstructorAdvertisements.Add(ia);
}
}
}
}
//Are there cases were we would want to show the non-local public subnet addresses?
}
