public MessageReceivedArgs(SessionChannel channel, byte[] data)
{
Contract.Requires(channel != null);
Contract.Requires(data != null);
this.Channel = channel;
this.Data = data;
}
public SessionRequestedArgs(SessionChannel channel, string command, UserauthArgs userauthArgs)
{
Contract.Requires(channel != null);
Contract.Requires(command != null);
Contract.Requires(userauthArgs != null);
this.Channel = channel;
this.CommandText = command;
this.AttachedUserauthArgs = userauthArgs;
}
public SessionRequestedArgs(SessionChannel channel, string command, UserauthArgs userauthArgs)
{
Contract.Requires(channel != null);
Contract.Requires(command != null);
Contract.Requires(userauthArgs != null);
Channel = channel;
CommandText = command;
AttachedUserauthArgs = userauthArgs;
}
public CommandRequestedArgs(SessionChannel channel, string type, string command, UserauthArgs userauthArgs)
{
Contract.Requires(channel != null);
Contract.Requires(command != null);
Contract.Requires(userauthArgs != null);
Channel = channel;
ShellType = type;
CommandText = command;
AttachedUserauthArgs = userauthArgs;
}
public SessionRequestedArgs(SessionChannel channel, string subsystem, string command, UserAuthArgs userauthArgs)
{
Contract.Requires(channel != null);
Contract.Requires(command != null);
Contract.Requires(userauthArgs != null);
Channel = channel;
CommandText = command;
AttachedUserAuthArgs = userauthArgs;
SubSystemName = subsystem;
}
public EnvironmentArgs(SessionChannel channel, string name, string value, UserauthArgs userauthArgs)
{
Contract.Requires(channel != null);
Contract.Requires(name != null);
Contract.Requires(value != null);
Contract.Requires(userauthArgs != null);
Channel = channel;
Name = name;
Value = value;
AttachedUserauthArgs = userauthArgs;
}
public TcpRequestArgs(SessionChannel channel, string host, int port, string originatorIP, int originatorPort, UserauthArgs userauthArgs)
{
Contract.Requires(channel != null);
Contract.Requires(host != null);
Contract.Requires(originatorIP != null);
Channel = channel;
Host = host;
Port = port;
OriginatorIP = originatorIP;
OriginatorPort = originatorPort;
AttachedUserauthArgs = userauthArgs;
}
internal SessionChannel AddChannel()
{
var channel = new SessionChannel(
this,
(uint)Interlocked.Increment(ref this.forwardChannelCounter),
1048576,
16384,
(uint)Interlocked.Increment(ref this.serverChannelCounter));
lock (this.locker)
this.channels.Add(channel);
return(channel);
}
public PtyArgs(SessionChannel channel, string terminal, uint heightPx, uint heightRows, uint widthPx, uint widthChars, string modes, UserAuthArgs userauthArgs)
{
Contract.Requires(channel != null);
Contract.Requires(terminal != null);
Contract.Requires(modes != null);
Contract.Requires(userauthArgs != null);
Channel = channel;
Terminal = terminal;
HeightPx = heightPx;
HeightRows = heightRows;
WidthPx = widthPx;
WidthChars = widthChars;
Modes = modes;
AttachedUserAuthArgs = userauthArgs;
}
private void HandleMessage(SessionOpenMessage message)
{
var channel = new SessionChannel(
this,
message.SenderChannel,
message.InitialWindowSize,
message.MaximumPacketSize,
(uint)Interlocked.Increment(ref _serverChannelCounter));
lock (_locker)
_channels.Add(channel);
var msg = new SessionOpenConfirmationMessage();
msg.RecipientChannel = channel.ClientChannelId;
msg.SenderChannel = channel.ServerChannelId;
msg.InitialWindowSize = channel.ServerInitialWindowSize;
msg.MaximumPacketSize = channel.ServerMaxPacketSize;
_session.SendMessage(msg);
}
private SessionChannel HandleChannelOpenMessage(ChannelOpenMessage message)
{
var channel = new SessionChannel(
this,
message.SenderChannel,
message.InitialWindowSize,
message.MaximumPacketSize,
(uint)Interlocked.Increment(ref _serverChannelCounter));
lock (_locker)
_channels.Add(channel);
var msg = new ChannelOpenConfirmationMessage
{
RecipientChannel = channel.ClientChannelId,
SenderChannel = channel.ServerChannelId,
InitialWindowSize = channel.ServerInitialWindowSize,
MaximumPacketSize = channel.ServerMaxPacketSize
};
_session.SendMessage(msg);
return(channel);
}
public SessionRequestedArgs(SessionChannel channel, string command, UserAuthArgs userauthArgs)
: this(channel, null, command, userauthArgs)
{
}
private void HandlePortForward(ChannelOpenMessage message, string address, uint port, string originationIP, uint originatorPort)
{
var channel = new SessionChannel(
this,
message.SenderChannel,
message.InitialWindowSize,
message.MaximumPacketSize,
(uint)Interlocked.Increment(ref _serverChannelCounter));
var readyToAcceptData = false;
var args = new TcpRequestArgs(
this._session,
address,
port,
originationIP,
originatorPort,
() =>
{
return(readyToAcceptData);
},
(byte[] data) =>
{
if (!channel.ClientClosed && !channel.ServerClosed)
{
channel.SendData(data);
}
else
{
throw new IOException("Connection closed");
}
},
() =>
{
if (!channel.ClientClosed && !channel.ServerClosed)
{
try
{
channel.SendClose();
}
catch
{
}
}
}
);
TcpForwardRequest(this, args);
Action <object, byte[]> eventHandlerForDataReceived = (sender, data) => {
try
{
args.OnClientData(data);
}
catch
{
channel.SendClose();
}
};
channel.DataReceived += (o, ea) => eventHandlerForDataReceived(o, ea);
lock (_locker)
_channels.Add(channel);
// send SSH_MSG_CHANNEL_OPEN_CONFIRMATION
var msg = new ChannelOpenConfirmationMessage
{
RecipientChannel = channel.ClientChannelId,
SenderChannel = channel.ServerChannelId,
InitialWindowSize = channel.ServerInitialWindowSize,
MaximumPacketSize = channel.ServerMaxPacketSize
};
_session.SendMessage(msg);
readyToAcceptData = true;
}
