| public static SetHeloVersion ( IAtomCollection helo ) : void | ||
| helo | IAtomCollection | |
| Результат | void | |
private Atom CreatePCPHelo()
{
var helo = new AtomCollection();
helo.SetHeloAgent(PeerCast.AgentName);
helo.SetHeloSessionID(PeerCast.SessionID);
switch (PeerCast.GetPortStatus(Channel.NetworkAddressFamily))
{
case PortStatus.Open:
{
var listener = PeerCast.FindListener(
connection.RemoteEndPoint.Address,
OutputStreamType.Relay | OutputStreamType.Metadata);
helo.SetHeloPort(listener.LocalEndPoint.Port);
}
break;
case PortStatus.Firewalled:
break;
case PortStatus.Unknown:
{
var listener = PeerCast.FindListener(
connection.RemoteEndPoint.Address,
OutputStreamType.Relay | OutputStreamType.Metadata);
if (listener != null)
{
helo.SetHeloPing(listener.LocalEndPoint.Port);
}
}
break;
}
PCPVersion.SetHeloVersion(helo);
return(new Atom(Atom.PCP_HELO, helo));
}
private bool SendPCPHelo()
{
var helo = new AtomCollection();
helo.SetHeloAgent(PeerCast.AgentName);
helo.SetHeloSessionID(PeerCast.SessionID);
if (PeerCast.IsFirewalled.HasValue)
{
if (PeerCast.IsFirewalled.Value)
{
//Do nothing
}
else
{
var listener = PeerCast.FindListener(
RemoteEndPoint.Address,
OutputStreamType.Relay | OutputStreamType.Metadata);
helo.SetHeloPort(listener.LocalEndPoint.Port);
}
}
else
{
var listener = PeerCast.FindListener(
RemoteEndPoint.Address,
OutputStreamType.Relay | OutputStreamType.Metadata);
if (listener != null)
{
helo.SetHeloPing(listener.LocalEndPoint.Port);
}
}
PCPVersion.SetHeloVersion(helo);
try {
connection.Send(stream => {
AtomWriter.Write(stream, new Atom(Atom.PCP_HELO, helo));
});
}
catch (IOException e) {
Logger.Info(e);
Stop(StopReason.ConnectionError);
return(false);
}
return(true);
}
private async Task OnPCPHelo(Atom atom, CancellationToken cancel_token)
{
if (Downhost != null)
{
return;
}
Logger.Debug("Helo received");
var session_id = atom.Children.GetHeloSessionID();
int remote_port = 0;
if (session_id != null)
{
var host = new HostBuilder();
host.SessionID = session_id.Value;
var port = atom.Children.GetHeloPort();
var ping = atom.Children.GetHeloPing();
if (port != null)
{
remote_port = port.Value;
}
else if (ping != null)
{
if (IsPingTarget(((IPEndPoint)RemoteEndPoint).Address) &&
await PingHost(new IPEndPoint(((IPEndPoint)RemoteEndPoint).Address, ping.Value), session_id.Value, cancel_token).ConfigureAwait(false))
{
remote_port = ping.Value;
}
else
{
remote_port = 0;
}
}
else
{
remote_port = 0;
}
if (remote_port != 0)
{
var ip = new IPEndPoint(((IPEndPoint)RemoteEndPoint).Address, remote_port);
if (host.GlobalEndPoint == null || !host.GlobalEndPoint.Equals(ip))
{
host.GlobalEndPoint = ip;
}
}
host.IsFirewalled = remote_port == 0;
host.Extra.Update(atom.Children);
Downhost = host.ToHost();
var user_agent = atom.Children.GetHeloAgent();
if (user_agent != null)
{
UserAgent = user_agent;
}
}
var oleh = new AtomCollection();
if (RemoteEndPoint != null && RemoteEndPoint.AddressFamily == Channel.NetworkAddressFamily)
{
oleh.SetHeloRemoteIP(((IPEndPoint)RemoteEndPoint).Address);
}
oleh.SetHeloAgent(PeerCast.AgentName);
oleh.SetHeloSessionID(PeerCast.SessionID);
oleh.SetHeloRemotePort(remote_port);
PCPVersion.SetHeloVersion(oleh);
await Connection.WriteAsync(new Atom(Atom.PCP_OLEH, oleh), cancel_token).ConfigureAwait(false);
if (Downhost == null)
{
Logger.Info("Helo has no SessionID");
//セッションIDが無かった
Stop(StopReason.NotIdentifiedError);
}
else if ((Downhost.Extra.GetHeloVersion() ?? 0) < 1200)
{
Logger.Info("Helo version {0} is too old", Downhost.Extra.GetHeloVersion() ?? 0);
//クライアントバージョンが無かった、もしくは古すぎ
Stop(StopReason.BadAgentError);
}
else if (IsRelayFull)
{
Logger.Debug("Handshake succeeded {0}({1}) but relay is full", Downhost.GlobalEndPoint, Downhost.SessionID.ToString("N"));
Stop(StopReason.UnavailableError);
}
else
{
Logger.Debug("Handshake succeeded {0}({1})", Downhost.GlobalEndPoint, Downhost.SessionID.ToString("N"));
await Connection.WriteAsync(new Atom(Atom.PCP_OK, (int)1), cancel_token).ConfigureAwait(false);
}
}
protected virtual void OnPCPHelo(Atom atom)
{
if (Downhost != null)
{
return;
}
Logger.Debug("Helo received");
var session_id = atom.Children.GetHeloSessionID();
int remote_port = 0;
if (session_id != null)
{
var host = new HostBuilder();
host.SessionID = session_id.Value;
var port = atom.Children.GetHeloPort();
var ping = atom.Children.GetHeloPing();
if (port != null)
{
remote_port = port.Value;
}
else if (ping != null)
{
if (IsPingTarget(((IPEndPoint)RemoteEndPoint).Address) &&
PingHost(new IPEndPoint(((IPEndPoint)RemoteEndPoint).Address, ping.Value), session_id.Value))
{
remote_port = ping.Value;
}
else
{
remote_port = 0;
}
}
else
{
remote_port = 0;
}
if (remote_port != 0)
{
var ip = new IPEndPoint(((IPEndPoint)RemoteEndPoint).Address, remote_port);
if (host.GlobalEndPoint == null || !host.GlobalEndPoint.Equals(ip))
{
host.GlobalEndPoint = ip;
}
}
host.IsFirewalled = remote_port == 0;
host.Extra.Update(atom.Children);
Downhost = host.ToHost();
UserAgent = atom.Children.GetHeloAgent() ?? UserAgent;
}
var oleh = new AtomCollection();
if (RemoteEndPoint != null && RemoteEndPoint.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
{
oleh.SetHeloRemoteIP(((IPEndPoint)RemoteEndPoint).Address);
}
oleh.SetHeloAgent(PeerCast.AgentName);
oleh.SetHeloSessionID(PeerCast.SessionID);
oleh.SetHeloRemotePort(remote_port);
PCPVersion.SetHeloVersion(oleh);
Send(new Atom(Atom.PCP_OLEH, oleh));
if (Downhost == null)
{
Logger.Info("Helo has no SessionID");
//セッションIDが無かった
Stop(StopReason.NotIdentifiedError);
}
else if ((Downhost.Extra.GetHeloVersion() ?? 0) < 1200)
{
Logger.Info("Helo version {0} is too old", Downhost.Extra.GetHeloVersion() ?? 0);
//クライアントバージョンが無かった、もしくは古すぎ
Stop(StopReason.BadAgentError);
}
else if (IsRelayFull)
{
Logger.Debug("Handshake succeeded {0}({1}) but relay is full", Downhost.GlobalEndPoint, Downhost.SessionID.ToString("N"));
Stop(StopReason.UnavailableError);
}
else
{
Logger.Debug("Handshake succeeded {0}({1})", Downhost.GlobalEndPoint, Downhost.SessionID.ToString("N"));
Send(new Atom(Atom.PCP_OK, (int)1));
}
}