private void OnCommand(ServerCommand command)
{
if (Command != null)
{
Command(command);
}
}
public Task SendCommand(ServerCommand command)
{
// Store where the message originated from
command.ServerId = _serverIdManager.ServerId;
// Send the command to the all servers
return _messageBus.Publish(_serverIdManager.ServerId, ServerSignal, _serializer.Stringify(command));
}
public Task SendCommand(ServerCommand command)
{
// Store where the message originated from
command.ServerId = _serverIdManager.ServerId;
// Send the command to the all servers
return(_messageBus.Publish(_serverIdManager.ServerId, ServerSignal, _serializer.Stringify(command)));
}
private void ProcessServerCommand(ServerCommand command)
{
switch (command.ServerCommandType)
{
case ServerCommandType.RemoveConnection:
// Only remove connections if this command didn't originate from the owner
if (!command.IsFromSelf(_serverId))
{
var connectionId = (string)command.Value;
// Remove the connection
ConnectionMetadata metadata;
if (_connections.TryGetValue(connectionId, out metadata))
{
metadata.Connection.End();
RemoveConnection(metadata.Connection);
}
}
break;
default:
break;
}
}
private void OnCommand(ServerCommand command)
{
if (Command != null)
{
Command(command);
}
}
/// <summary>
/// Handles all requests for <see cref="PersistentConnection"/>s.
/// </summary>
/// <param name="context">The <see cref="HostContext"/> for the current request.</param>
/// <returns>A <see cref="Task"/> that completes when the <see cref="PersistentConnection"/> pipeline is complete.</returns>
/// <exception cref="T:System.InvalidOperationException">
/// Thrown if connection wasn't initialized.
/// Thrown if the transport wasn't specified.
/// Thrown if the connection id wasn't specified.
/// </exception>
public virtual Task ProcessRequest(HostContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (!_initialized)
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, Resources.Error_ConnectionNotInitialized));
}
if (IsNegotiationRequest(context.Request))
{
return ProcessNegotiationRequest(context);
}
else if (IsPingRequest(context.Request))
{
return ProcessPingRequest(context);
}
Transport = GetTransport(context);
if (Transport == null)
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, Resources.Error_ProtocolErrorUnknownTransport));
}
string connectionToken = context.Request.QueryString["connectionToken"];
// If there's no connection id then this is a bad request
if (String.IsNullOrEmpty(connectionToken))
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, Resources.Error_ProtocolErrorMissingConnectionToken));
}
string connectionId = GetConnectionId(context, connectionToken);
// Set the transport's connection id to the unprotected one
Transport.ConnectionId = connectionId;
IList<string> signals = GetSignals(connectionId);
IList<string> groups = AppendGroupPrefixes(context, connectionId);
Connection connection = CreateConnection(connectionId, signals, groups);
Connection = connection;
string groupName = PrefixHelper.GetPersistentConnectionGroupName(DefaultSignalRaw);
Groups = new GroupManager(connection, groupName);
Transport.TransportConnected = () =>
{
var command = new ServerCommand
{
ServerCommandType = ServerCommandType.RemoveConnection,
Value = connectionId
};
return _serverMessageHandler.SendCommand(command);
};
Transport.Connected = () =>
{
return TaskAsyncHelper.FromMethod(() => OnConnected(context.Request, connectionId).OrEmpty());
};
Transport.Reconnected = () =>
{
return TaskAsyncHelper.FromMethod(() => OnReconnected(context.Request, connectionId).OrEmpty());
};
Transport.Received = data =>
{
Counters.ConnectionMessagesSentTotal.Increment();
Counters.ConnectionMessagesSentPerSec.Increment();
return TaskAsyncHelper.FromMethod(() => OnReceived(context.Request, connectionId, data).OrEmpty());
};
Transport.Disconnected = () =>
{
return TaskAsyncHelper.FromMethod(() => OnDisconnected(context.Request, connectionId).OrEmpty());
};
return Transport.ProcessRequest(connection).OrEmpty().Catch(Counters.ErrorsAllTotal, Counters.ErrorsAllPerSec);
}
private void ProcessServerCommand(ServerCommand command)
{
switch (command.ServerCommandType)
{
case ServerCommandType.RemoveConnection:
// Only remove connections if this command didn't originate from the owner
if (!command.IsFromSelf(_serverId))
{
RemoveConnection((string)command.Value);
}
break;
default:
break;
}
}
/// <summary>
/// Handles all requests for <see cref="PersistentConnection"/>s.
/// </summary>
/// <param name="context">The <see cref="HostContext"/> for the current request.</param>
/// <returns>A <see cref="Task"/> that completes when the <see cref="PersistentConnection"/> pipeline is complete.</returns>
/// <exception cref="T:System.InvalidOperationException">
/// Thrown if connection wasn't initialized.
/// Thrown if the transport wasn't specified.
/// Thrown if the connection id wasn't specified.
/// </exception>
public virtual Task ProcessRequestAsync(HostContext context)
{
if (!_initialized)
{
throw new InvalidOperationException("Connection not initialized.");
}
if (IsNegotiationRequest(context.Request))
{
return ProcessNegotiationRequest(context);
}
_transport = GetTransport(context);
if (_transport == null)
{
throw new InvalidOperationException("Protocol error: Unknown transport.");
}
string connectionId = _transport.ConnectionId;
// If there's no connection id then this is a bad request
if (String.IsNullOrEmpty(connectionId))
{
throw new InvalidOperationException("Protocol error: Missing connection id.");
}
IEnumerable<string> signals = GetSignals(connectionId);
IEnumerable<string> groups = OnRejoiningGroups(context.Request, _transport.Groups, connectionId);
Connection connection = CreateConnection(connectionId, signals, groups);
Connection = connection;
Groups = new GroupManager(connection, DefaultSignal);
_transport.TransportConnected = () =>
{
var command = new ServerCommand
{
Type = ServerCommandType.RemoveConnection,
Value = connectionId
};
return _serverMessageHandler.SendCommand(command);
};
_transport.Connected = () =>
{
return OnConnectedAsync(context.Request, connectionId).OrEmpty();
};
_transport.Reconnected = () =>
{
return OnReconnectedAsync(context.Request, connectionId).OrEmpty();
};
_transport.Received = data =>
{
return OnReceivedAsync(context.Request, connectionId, data).OrEmpty();
};
_transport.Disconnected = () =>
{
return OnDisconnectAsync(context.Request, connectionId).OrEmpty();
};
return _transport.ProcessRequest(connection).OrEmpty().Catch(_counters.ErrorsAllTotal, _counters.ErrorsAllPerSec);
}
/// <summary>
/// Handles all requests for <see cref="PersistentConnection"/>s.
/// </summary>
/// <param name="context">The <see cref="HostContext"/> for the current request.</param>
/// <returns>A <see cref="Task"/> that completes when the <see cref="PersistentConnection"/> pipeline is complete.</returns>
/// <exception cref="T:System.InvalidOperationException">
/// Thrown if connection wasn't initialized.
/// Thrown if the transport wasn't specified.
/// Thrown if the connection id wasn't specified.
/// </exception>
public virtual Task ProcessRequestAsync(HostContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (!_initialized)
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, Resources.Error_ConnectionNotInitialized));
}
if (IsNegotiationRequest(context.Request))
{
return ProcessNegotiationRequest(context);
}
Transport = GetTransport(context);
if (Transport == null)
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, Resources.Error_ProtocolErrorUnknownTransport));
}
string connectionId = Transport.ConnectionId;
// If there's no connection id then this is a bad request
if (String.IsNullOrEmpty(connectionId))
{
throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture, Resources.Error_ProtocolErrorMissingConnectionId));
}
IEnumerable<string> signals = GetSignals(connectionId);
IEnumerable<string> groups = OnRejoiningGroups(context.Request, Transport.Groups, connectionId);
Connection connection = CreateConnection(connectionId, signals, groups);
Connection = connection;
Groups = new GroupManager(connection, DefaultSignal);
Transport.TransportConnected = () =>
{
var command = new ServerCommand
{
ServerCommandType = ServerCommandType.RemoveConnection,
Value = connectionId
};
return _serverMessageHandler.SendCommand(command);
};
Transport.Connected = () =>
{
return OnConnectedAsync(context.Request, connectionId).OrEmpty();
};
Transport.Reconnected = () =>
{
return OnReconnectedAsync(context.Request, connectionId).OrEmpty();
};
Transport.Received = data =>
{
Counters.ConnectionMessagesSentTotal.Increment();
Counters.ConnectionMessagesSentPerSec.Increment();
return OnReceivedAsync(context.Request, connectionId, data).OrEmpty();
};
Transport.Disconnected = () =>
{
return OnDisconnectAsync(context.Request, connectionId).OrEmpty();
};
return Transport.ProcessRequest(connection).OrEmpty().Catch(Counters.ErrorsAllTotal, Counters.ErrorsAllPerSec);
}
