Examples with I2PSessionException net.i2p.client.I2PSessionException used on opensource projects

Example 31 with I2PSessionException

use of net.i2p.client.I2PSessionException in project i2p.i2p by i2p.

the class SAMv3Handler method execSessionMessage.

/* Parse and execute a SESSION message */
@Override
protected boolean execSessionMessage(String opcode, Properties props) {
    String dest = "BUG!";
    boolean ok = false;
    String nick = (String) props.remove("ID");
    if (nick == null)
        return writeString(SESSION_ERROR, "ID not specified");
    String style = (String) props.remove("STYLE");
    if (style == null && !opcode.equals("REMOVE"))
        return writeString(SESSION_ERROR, "No SESSION STYLE specified");
    try {
        if (opcode.equals("CREATE")) {
            if ((this.getRawSession() != null) || (this.getDatagramSession() != null) || (this.getStreamSession() != null)) {
                if (_log.shouldLog(Log.DEBUG))
                    _log.debug("Trying to create a session, but one still exists");
                return writeString(SESSION_ERROR, "Session already exists");
            }
            if (props.isEmpty()) {
                if (_log.shouldLog(Log.DEBUG))
                    _log.debug("No parameters specified in SESSION CREATE message");
                return writeString(SESSION_ERROR, "No parameters for SESSION CREATE");
            }
            dest = (String) props.remove("DESTINATION");
            if (dest == null) {
                if (_log.shouldLog(Log.DEBUG))
                    _log.debug("SESSION DESTINATION parameter not specified");
                return writeString(SESSION_ERROR, "DESTINATION not specified");
            }
            if (dest.equals("TRANSIENT")) {
                if (_log.shouldLog(Log.DEBUG))
                    _log.debug("TRANSIENT destination requested");
                String sigTypeStr = (String) props.remove("SIGNATURE_TYPE");
                SigType sigType;
                if (sigTypeStr != null) {
                    sigType = SigType.parseSigType(sigTypeStr);
                    if (sigType == null) {
                        return writeString(SESSION_ERROR, "SIGNATURE_TYPE " + sigTypeStr + " unsupported");
                    }
                } else {
                    sigType = SigType.DSA_SHA1;
                }
                ByteArrayOutputStream priv = new ByteArrayOutputStream(663);
                SAMUtils.genRandomKey(priv, null, sigType);
                dest = Base64.encode(priv.toByteArray());
            } else {
                if (_log.shouldLog(Log.DEBUG))
                    _log.debug("Custom destination specified [" + dest + "]");
                if (!SAMUtils.checkPrivateDestination(dest))
                    return writeString("SESSION STATUS RESULT=INVALID_KEY\n");
            }
            // Unconditionally override what the client may have set
            // (iMule sets BestEffort) as None is more efficient
            // and the client has no way to access delivery notifications
            i2cpProps.setProperty(I2PClient.PROP_RELIABILITY, I2PClient.PROP_RELIABILITY_NONE);
            i2cpProps.setProperty("i2cp.fastReceive", "true");
            // Record the session in the database sSessionsHash
            Properties allProps = new Properties();
            allProps.putAll(i2cpProps);
            allProps.putAll(props);
            if (style.equals("MASTER")) {
                // We must put these here, as SessionRecord.getProps() makes a copy,
                // and the socket manager is instantiated in the
                // SAMStreamSession constructor.
                allProps.setProperty("i2p.streaming.enforceProtocol", "true");
                allProps.setProperty("i2cp.dontPublishLeaseSet", "false");
            }
            try {
                sSessionsHash.put(nick, new SessionRecord(dest, allProps, this));
            } catch (SessionsDB.ExistingIdException e) {
                if (_log.shouldLog(Log.DEBUG))
                    _log.debug("SESSION ID parameter already in use");
                return writeString("SESSION STATUS RESULT=DUPLICATED_ID\n");
            } catch (SessionsDB.ExistingDestException e) {
                return writeString("SESSION STATUS RESULT=DUPLICATED_DEST\n");
            }
            if (style.equals("RAW")) {
                SAMv3DatagramServer dgs = bridge.getV3DatagramServer(props);
                SAMv3RawSession v3 = new SAMv3RawSession(nick, dgs);
                rawSession = v3;
                this.session = v3;
                v3.start();
            } else if (style.equals("DATAGRAM")) {
                SAMv3DatagramServer dgs = bridge.getV3DatagramServer(props);
                SAMv3DatagramSession v3 = new SAMv3DatagramSession(nick, dgs);
                datagramSession = v3;
                this.session = v3;
                v3.start();
            } else if (style.equals("STREAM")) {
                SAMv3StreamSession v3 = newSAMStreamSession(nick);
                streamSession = v3;
                this.session = v3;
                v3.start();
            } else if (style.equals("MASTER")) {
                SAMv3DatagramServer dgs = bridge.getV3DatagramServer(props);
                MasterSession v3 = new MasterSession(nick, dgs, this, allProps);
                streamSession = v3;
                datagramSession = v3;
                rawSession = v3;
                this.session = v3;
                v3.start();
            } else {
                if (_log.shouldLog(Log.DEBUG))
                    _log.debug("Unrecognized SESSION STYLE: \"" + style + "\"");
                return writeString(SESSION_ERROR, "Unrecognized SESSION STYLE");
            }
            ok = true;
            return writeString("SESSION STATUS RESULT=OK DESTINATION=" + dest + "\n");
        } else if (opcode.equals("ADD") || opcode.equals("REMOVE")) {
            // prevent trouble in finally block
            ok = true;
            if (streamSession == null || datagramSession == null || rawSession == null)
                return writeString(SESSION_ERROR, "Not a MASTER session");
            MasterSession msess = (MasterSession) session;
            String msg;
            if (opcode.equals("ADD")) {
                msg = msess.add(nick, style, props);
            } else {
                msg = msess.remove(nick, props);
            }
            if (msg == null)
                return writeString("SESSION STATUS RESULT=OK ID=\"" + nick + '"', opcode + ' ' + nick);
            else
                return writeString(SESSION_ERROR + " ID=\"" + nick + '"', msg);
        } else {
            if (_log.shouldLog(Log.DEBUG))
                _log.debug("Unrecognized SESSION message opcode: \"" + opcode + "\"");
            return writeString(SESSION_ERROR, "Unrecognized opcode");
        }
    } catch (DataFormatException e) {
        _log.error("Invalid SAM destination specified", e);
        return writeString("SESSION STATUS RESULT=INVALID_KEY", e.getMessage());
    } catch (I2PSessionException e) {
        _log.error("Failed to start SAM session", e);
        return writeString(SESSION_ERROR, e.getMessage());
    } catch (SAMException e) {
        _log.error("Failed to start SAM session", e);
        return writeString(SESSION_ERROR, e.getMessage());
    } catch (IOException e) {
        _log.error("Failed to start SAM session", e);
        return writeString(SESSION_ERROR, e.getMessage());
    } finally {
        // unregister the session if it has not been created
        if (!ok && nick != null) {
            sSessionsHash.del(nick);
            session = null;
        }
    }
}

Example 32 with I2PSessionException

use of net.i2p.client.I2PSessionException in project i2p.i2p by i2p.

the class MasterSession method add.

/**
 *  Add a session
 *  @return null for success, or error message
 */
public synchronized String add(String nick, String style, Properties props) {
    if (props.containsKey("DESTINATION"))
        return "SESSION ADD may not contain DESTINATION";
    SessionRecord rec = SAMv3Handler.sSessionsHash.get(nick);
    if (rec != null || sessions.containsKey(nick))
        return "Duplicate ID " + nick;
    int listenPort = I2PSession.PORT_ANY;
    String slp = (String) props.remove("LISTEN_PORT");
    if (slp == null)
        slp = props.getProperty("FROM_PORT");
    if (slp != null) {
        try {
            listenPort = Integer.parseInt(slp);
            if (listenPort < 0 || listenPort > 65535)
                return "Bad LISTEN_PORT " + slp;
        // TODO enforce streaming listen port must be 0 or from port
        } catch (NumberFormatException nfe) {
            return "Bad LISTEN_PORT " + slp;
        }
    }
    int listenProtocol;
    SAMMessageSess sess;
    SAMv3Handler subhandler;
    try {
        I2PSession isess = socketMgr.getSession();
        subhandler = new SAMv3Handler(handler.getClientSocket(), handler.verMajor, handler.verMinor, handler.getBridge());
        if (style.equals("RAW")) {
            if (!props.containsKey("PORT"))
                return "RAW subsession must specify PORT";
            listenProtocol = I2PSession.PROTO_DATAGRAM_RAW;
            String spr = (String) props.remove("LISTEN_PROTOCOL");
            if (spr == null)
                spr = props.getProperty("PROTOCOL");
            if (spr != null) {
                try {
                    listenProtocol = Integer.parseInt(spr);
                    // RAW can't listen on streaming protocol
                    if (listenProtocol < 0 || listenProtocol > 255 || listenProtocol == I2PSession.PROTO_STREAMING)
                        return "Bad RAW LISTEN_PPROTOCOL " + spr;
                } catch (NumberFormatException nfe) {
                    return "Bad LISTEN_PROTOCOL " + spr;
                }
            }
            SAMv3RawSession ssess = new SAMv3RawSession(nick, props, handler, isess, listenProtocol, listenPort, dgs);
            subhandler.setSession(ssess);
            sess = ssess;
        } else if (style.equals("DATAGRAM")) {
            if (!props.containsKey("PORT"))
                return "DATAGRAM subsession must specify PORT";
            listenProtocol = I2PSession.PROTO_DATAGRAM;
            SAMv3DatagramSession ssess = new SAMv3DatagramSession(nick, props, handler, isess, listenPort, dgs);
            subhandler.setSession(ssess);
            sess = ssess;
        } else if (style.equals("STREAM")) {
            listenProtocol = I2PSession.PROTO_STREAMING;
            // FIXME need something that hangs off an existing dest
            SAMv3StreamSession ssess = new SAMv3StreamSession(nick, props, handler, socketMgr, listenPort);
            subhandler.setSession(ssess);
            sess = ssess;
        } else {
            return "Unrecognized SESSION STYLE " + style;
        }
    } catch (IOException e) {
        return e.toString();
    } catch (DataFormatException e) {
        return e.toString();
    } catch (SAMException e) {
        return e.toString();
    } catch (I2PSessionException e) {
        return e.toString();
    }
    for (SAMMessageSess s : sessions.values()) {
        if (listenProtocol == s.getListenProtocol() && listenPort == s.getListenPort())
            return "Duplicate protocol " + listenProtocol + " and port " + listenPort;
    }
    rec = new SessionRecord(getDestination().toBase64(), props, subhandler);
    try {
        SAMv3Handler.sSessionsHash.putDupDestOK(nick, rec);
        sessions.put(nick, sess);
    } catch (SessionsDB.ExistingIdException e) {
        return "Duplicate ID " + nick;
    }
    if (_log.shouldWarn())
        _log.warn("added " + style + " proto " + listenProtocol + " port " + listenPort);
    sess.start();
    // all ok
    return null;
}

Example 33 with I2PSessionException

use of net.i2p.client.I2PSessionException in project i2p.i2p by i2p.

the class BWLimits method getBWLimits.

public static int[] getBWLimits(String host, int port) {
    int[] rv = null;
    try {
        I2PClient client = new I2PSimpleClient();
        Properties opts = new Properties();
        opts.put(I2PClient.PROP_TCP_HOST, host);
        opts.put(I2PClient.PROP_TCP_PORT, "" + port);
        I2PSession session = client.createSession(null, opts);
        session.connect();
        rv = session.bandwidthLimits();
        session.destroySession();
    } catch (I2PSessionException ise) {
    }
    return rv;
}

Example 34 with I2PSessionException

use of net.i2p.client.I2PSessionException in project i2p.i2p by i2p.

the class I2CPMessageProducer method updateTunnels.

/**
 * Update number of tunnels
 *
 * @param tunnels 0 for original configured number
 */
public void updateTunnels(I2PSessionImpl session, int tunnels) throws I2PSessionException {
    ReconfigureSessionMessage msg = new ReconfigureSessionMessage();
    SessionConfig cfg = new SessionConfig(session.getMyDestination());
    Properties props = session.getOptions();
    if (tunnels > 0) {
        Properties newprops = new Properties();
        newprops.putAll(props);
        props = newprops;
        props.setProperty("inbound.quantity", "" + tunnels);
        props.setProperty("outbound.quantity", "" + tunnels);
        props.setProperty("inbound.backupQuantity", "0");
        props.setProperty("outbound.backupQuantity", "0");
    }
    cfg.setOptions(props);
    try {
        cfg.signSessionConfig(session.getPrivateKey());
    } catch (DataFormatException dfe) {
        throw new I2PSessionException("Unable to sign the session config", dfe);
    }
    msg.setSessionConfig(cfg);
    SessionId sid = session.getSessionId();
    if (sid == null) {
        _log.error(session.toString() + " update config w/o session", new Exception());
        return;
    }
    msg.setSessionId(sid);
    session.sendMessage(msg);
}

Example 35 with I2PSessionException

use of net.i2p.client.I2PSessionException in project i2p.i2p by i2p.

the class I2CPMessageProducer method sendMessage.

/**
 * Package up and send the payload to the router for delivery
 *
 * @param nonce 0 to 0xffffffff; if 0, the router will not reply with a MessageStatusMessage
 * @since 0.8.4
 */
public void sendMessage(I2PSessionImpl session, Destination dest, long nonce, byte[] payload, long expires, int flags) throws I2PSessionException {
    if (!updateBps(payload.length, expires))
        // drop the message... send fail notification?
        return;
    SendMessageMessage msg;
    if (expires > 0 || flags > 0) {
        SendMessageExpiresMessage smsg = new SendMessageExpiresMessage();
        smsg.setExpiration(expires);
        smsg.setFlags(flags);
        msg = smsg;
    } else
        msg = new SendMessageMessage();
    msg.setDestination(dest);
    SessionId sid = session.getSessionId();
    if (sid == null) {
        _log.error(session.toString() + " send message w/o session", new Exception());
        return;
    }
    msg.setSessionId(sid);
    msg.setNonce(nonce);
    Payload data = createPayload(dest, payload, null, null, null, null);
    msg.setPayload(data);
    session.sendMessage(msg);
}