net.i2p.sam

Class MasterSession

java.lang.Object

net.i2p.sam.SAMStreamSession

net.i2p.sam.SAMv3StreamSession

net.i2p.sam.MasterSession

All Implemented Interfaces:

Closeable, AutoCloseable, I2PSessionListener, I2PSessionMuxedListener, SAMDatagramReceiver, SAMMessageSess, SAMRawReceiver, Session

class MasterSession
extends SAMv3StreamSession
implements SAMDatagramReceiver, SAMRawReceiver, SAMMessageSess, I2PSessionMuxedListener

A session that does nothing, but implements interfaces for raw, datagram, and streaming for convenience. We extend SAMv3StreamSession as we must have it set up the I2PSession, in case user adds a STREAM session (and he probably will). This session receives all data from I2P, but you can't send any data on it.

Nested Class Summary

Nested classes/interfaces inherited from class net.i2p.sam.SAMStreamSession

SAMStreamSession.DisconnectListener, SAMStreamSession.SAMStreamSessionServer, SAMStreamSession.SAMStreamSessionSocketReader, SAMStreamSession.SAMv1StreamSessionSocketReader, SAMStreamSession.StreamSender

Field Summary

Fields inherited from class net.i2p.sam.SAMStreamSession

_isOwnSession, _log, canCreate, DEFAULT_FORCE_FLUSH, forceFlush, PROP_FORCE_FLUSH, recv, server, SOCKET_HANDLER_BUF_SIZE, socketMgr

Constructor Summary

Constructors

Constructor and Description
MasterSession(String nick, SAMv3DatagramServer dgServer, SAMv3Handler handler, Properties props) Build a Session according to information registered with the given nickname.

Method Summary

Modifier and Type	Method and Description
void	accept(SAMv3Handler handler, boolean verbose) Accept a single incoming STREAM on the socket stolen from the handler.
String	add(String nick, String style, Properties props) Add a session
void	close() Close the primary/master session and all subsessions.
void	connect(SAMv3Handler handler, String dest, Properties props) Connect the SAM STREAM session to the specified Destination for a single connection, using the socket stolen from the handler.
void	disconnected(I2PSession session) Notify the client that the session has been terminated.
void	errorOccurred(I2PSession session, String message, Throwable error) Notify the client that some error occurred.
int	getListenPort()
int	getListenProtocol()
void	messageAvailable(I2PSession session, int msgId, long size) Will be called only if you register via setSessionListener() or addSessionListener().
void	messageAvailable(I2PSession session, int msgId, long size, int proto, int fromPort, int toPort) Instruct the client that the given session has received a message Will be called only if you register via addMuxedSessionListener().
void	receiveDatagramBytes(Destination sender, byte[] data, int proto, int fromPort, int toPort) Send a byte array to a SAM client.
void	receiveRawBytes(byte[] data, int proto, int fromPort, int toPort) Send a byte array to a SAM client, without informations regarding the sender.
String	remove(String nick, Properties props) Remove a session
void	reportAbuse(I2PSession session, int severity) Instruct the client that the session specified seems to be under attack and that the client may wish to move its destination to another router.
void	start() Overridden to start the acceptor.
void	startForwardingIncoming(Properties props, boolean sendPorts) Forward sockets from I2P to the host/port provided.
void	stopDatagramReceiving() Does nothing.
void	stopForwardingIncoming() does nothing
void	stopRawReceiving() Does nothing.

Methods inherited from class net.i2p.sam.SAMv3StreamSession

getDB, getNick, getSocketServer, queueSocket

Methods inherited from class net.i2p.sam.SAMStreamSession

checkSocketHandlerId, closeConnection, connect, createSocketHandler, getDestination, getSocketReader, isDestroyed, newSAMStreamSessionSocketReader, newStreamSender, removeSocketHandler, sendBytes, sendBytes, sendBytes, setReceiveLimit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.i2p.sam.SAMMessageSess

getDestination, sendBytes, sendBytes

Constructor Detail

MasterSession

public MasterSession(String nick,
                     SAMv3DatagramServer dgServer,
                     SAMv3Handler handler,
                     Properties props)
              throws IOException,
                     DataFormatException,
                     SAMException

Build a Session according to information registered with the given nickname. Caller MUST call start().

Parameters:

nick - nickname of the session

Throws:

IOException

DataFormatException

SAMException

Method Detail

accept

public void accept(SAMv3Handler handler,
                   boolean verbose)
            throws SAMException

Description copied from class: SAMv3StreamSession

Accept a single incoming STREAM on the socket stolen from the handler. As of version 3.2 (0.9.24), multiple simultaneous accepts are allowed. Accepts and forwarding may not be done at the same time.

Overrides:

accept in class SAMv3StreamSession

Parameters:

handler - The handler that communicates with the requesting client

verbose - If true, SAM will send the Base64-encoded peer Destination of an incoming socket as the first line of data sent to its client on the handler socket

Throws:

SAMException - always

add

public String add(String nick,
                  String style,
                  Properties props)

Add a session

Returns:

null for success, or error message

close

public void close()

Close the primary/master session and all subsessions. Overridden to stop the acceptor and the subsessions.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in interface SAMMessageSess

Overrides:

close in class SAMv3StreamSession

connect

public void connect(SAMv3Handler handler,
                    String dest,
                    Properties props)
             throws I2PException

Description copied from class: SAMv3StreamSession

Connect the SAM STREAM session to the specified Destination for a single connection, using the socket stolen from the handler.

Overrides:

connect in class SAMv3StreamSession

Parameters:

handler - The handler that communicates with the requesting client

dest - Base64-encoded Destination to connect to

props - Options to be used for connection

Throws:

I2PException - always

disconnected

public void disconnected(I2PSession session)

Description copied from interface: I2PSessionMuxedListener

Notify the client that the session has been terminated. All registered listeners will be called.

Specified by:

disconnected in interface I2PSessionListener

Specified by:

disconnected in interface I2PSessionMuxedListener

errorOccurred

public void errorOccurred(I2PSession session,
                          String message,
                          Throwable error)

Description copied from interface: I2PSessionMuxedListener

Notify the client that some error occurred. All registered listeners will be called.

Specified by:

errorOccurred in interface I2PSessionListener

Specified by:

errorOccurred in interface I2PSessionMuxedListener

error - can be null? or not?

getListenPort

public int getListenPort()

Specified by:

getListenPort in interface SAMMessageSess

Overrides:

getListenPort in class SAMStreamSession

getListenProtocol

public int getListenProtocol()

Specified by:

getListenProtocol in interface SAMMessageSess

Overrides:

getListenProtocol in class SAMStreamSession

messageAvailable

public void messageAvailable(I2PSession session,
                             int msgId,
                             long size)

Description copied from interface: I2PSessionMuxedListener

Will be called only if you register via setSessionListener() or addSessionListener(). And if you are doing that, just use I2PSessionListener. If you register via addSessionListener(), this will be called only for the proto(s) and toport(s) you register for. After this is called, the client should call receiveMessage(msgId). There is currently no method for the client to reject the message. If the client does not call receiveMessage() within a timeout period (currently 30 seconds), the session will delete the message and log an error.

Specified by:

messageAvailable in interface I2PSessionListener

Specified by:

messageAvailable in interface I2PSessionMuxedListener

Parameters:

session - session to notify

msgId - message number available

size - size of the message - why it's a long and not an int is a mystery

messageAvailable

public void messageAvailable(I2PSession session,
                             int msgId,
                             long size,
                             int proto,
                             int fromPort,
                             int toPort)

Description copied from interface: I2PSessionMuxedListener

Instruct the client that the given session has received a message Will be called only if you register via addMuxedSessionListener(). Will be called only for the proto(s) and toport(s) you register for. After this is called, the client should call receiveMessage(msgId). There is currently no method for the client to reject the message. If the client does not call receiveMessage() within a timeout period (currently 30 seconds), the session will delete the message and log an error. Only one listener is called for a given message, even if more than one have registered. See I2PSessionDemultiplexer for details.

Specified by:

messageAvailable in interface I2PSessionMuxedListener

Parameters:

session - session to notify

msgId - message number available

size - size of the message - why it's a long and not an int is a mystery

proto - 1-254 or 0 for unspecified

fromPort - 1-65535 or 0 for unspecified

toPort - 1-65535 or 0 for unspecified

receiveDatagramBytes

public void receiveDatagramBytes(Destination sender,
                                 byte[] data,
                                 int proto,
                                 int fromPort,
                                 int toPort)
                          throws IOException

Description copied from interface: SAMDatagramReceiver

Send a byte array to a SAM client.

Specified by:

receiveDatagramBytes in interface SAMDatagramReceiver

Parameters:

sender - Destination

data - Byte array to be received

proto - I2CP protocol

fromPort - I2CP from port

toPort - I2CP to port

Throws:

IOException - always

receiveRawBytes

public void receiveRawBytes(byte[] data,
                            int proto,
                            int fromPort,
                            int toPort)
                     throws IOException

Description copied from interface: SAMRawReceiver

Send a byte array to a SAM client, without informations regarding the sender.

Specified by:

receiveRawBytes in interface SAMRawReceiver

Parameters:

data - Byte array to be received

proto - I2CP protocol

fromPort - I2CP from port

toPort - I2CP to port

Throws:

IOException - always

remove

public String remove(String nick,
                     Properties props)

Remove a session

Parameters:

props - ignored, may be null

Returns:

null for success, or error message

reportAbuse

public void reportAbuse(I2PSession session,
                        int severity)

Description copied from interface: I2PSessionMuxedListener

Instruct the client that the session specified seems to be under attack and that the client may wish to move its destination to another router. All registered listeners will be called. Unused. Not fully implemented.

Specified by:

reportAbuse in interface I2PSessionListener

Specified by:

reportAbuse in interface I2PSessionMuxedListener

Parameters:

session - session to report abuse to

severity - how bad the abuse is

start

public void start()

Overridden to start the acceptor.

Specified by:

start in interface SAMMessageSess

Overrides:

start in class SAMStreamSession

startForwardingIncoming

public void startForwardingIncoming(Properties props,
                                    boolean sendPorts)
                             throws SAMException

Description copied from class: SAMv3StreamSession

Forward sockets from I2P to the host/port provided. Accepts and forwarding may not be done at the same time.

Overrides:

startForwardingIncoming in class SAMv3StreamSession

Throws:

SAMException - always

stopDatagramReceiving

public void stopDatagramReceiving()

Does nothing.

Specified by:

stopDatagramReceiving in interface SAMDatagramReceiver

stopForwardingIncoming

public void stopForwardingIncoming()

does nothing

Overrides:

stopForwardingIncoming in class SAMv3StreamSession

stopRawReceiving

public void stopRawReceiving()

Does nothing.

Specified by:

stopRawReceiving in interface SAMRawReceiver