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

Example 36 with I2PSessionException

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

the class I2PSessionImpl method lookupDest.

/**
 *  Ask the router to lookup a Destination by host name.
 *  Blocking. See above for details.
 *  @param maxWait ms
 *  @since 0.9.11
 *  @return null on failure
 */
public Destination lookupDest(String name, long maxWait) throws I2PSessionException {
    if (name.length() == 0)
        return null;
    // Shortcut for b64
    if (name.length() >= 516) {
        try {
            return new Destination(name);
        } catch (DataFormatException dfe) {
            return null;
        }
    }
    // won't fit in Mapping
    if (name.length() >= 256 && !_context.isRouterContext())
        return null;
    synchronized (_lookupCache) {
        Destination rv = _lookupCache.get(name);
        if (rv != null)
            return rv;
    }
    if (isClosed()) {
        if (_log.shouldLog(Log.INFO))
            _log.info("Session closed, cannot lookup " + name);
        return null;
    }
    if (!_routerSupportsHostLookup) {
        // do them a favor and convert to Hash lookup
        if (name.length() == 60 && name.toLowerCase(Locale.US).endsWith(".b32.i2p"))
            return lookupDest(Hash.create(Base32.decode(name.toLowerCase(Locale.US).substring(0, 52))), maxWait);
        // else unsupported
        if (_log.shouldLog(Log.WARN))
            _log.warn("Router does not support HostLookup for " + name);
        return null;
    }
    int nonce = _lookupID.incrementAndGet() & 0x7fffffff;
    LookupWaiter waiter = new LookupWaiter(name, nonce);
    _pendingLookups.offer(waiter);
    Destination rv = null;
    try {
        if (_log.shouldLog(Log.INFO))
            _log.info("Sending HostLookup for " + name);
        SessionId id = _sessionId;
        if (id == null)
            id = new SessionId(65535);
        sendMessage_unchecked(new HostLookupMessage(id, name, nonce, maxWait));
        try {
            synchronized (waiter) {
                waiter.wait(maxWait);
                rv = waiter.destination;
            }
        } catch (InterruptedException ie) {
            throw new I2PSessionException("Interrupted", ie);
        }
    } finally {
        _pendingLookups.remove(waiter);
    }
    return rv;
}

Example 37 with I2PSessionException

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

the class I2PSessionImpl method lookupDest.

/**
 *  Blocking.
 *  @param maxWait ms
 *  @since 0.8.3
 *  @return null on failure
 */
public Destination lookupDest(Hash h, long maxWait) throws I2PSessionException {
    synchronized (_lookupCache) {
        Destination rv = _lookupCache.get(h);
        if (rv != null)
            return rv;
    }
    synchronized (_stateLock) {
        // not before GOTDATE
        if (_state == State.CLOSED || _state == State.INIT || _state == State.OPENING) {
            if (_log.shouldLog(Log.INFO))
                _log.info("Session closed, cannot lookup " + h);
            return null;
        }
    }
    LookupWaiter waiter;
    long nonce;
    if (_routerSupportsHostLookup) {
        nonce = _lookupID.incrementAndGet() & 0x7fffffff;
        waiter = new LookupWaiter(h, nonce);
    } else {
        // won't be used
        nonce = 0;
        waiter = new LookupWaiter(h);
    }
    _pendingLookups.offer(waiter);
    Destination rv = null;
    try {
        if (_routerSupportsHostLookup) {
            if (_log.shouldLog(Log.INFO))
                _log.info("Sending HostLookup for " + h);
            SessionId id = _sessionId;
            if (id == null)
                id = new SessionId(65535);
            sendMessage_unchecked(new HostLookupMessage(id, h, nonce, maxWait));
        } else {
            if (_log.shouldLog(Log.INFO))
                _log.info("Sending DestLookup for " + h);
            sendMessage_unchecked(new DestLookupMessage(h));
        }
        try {
            synchronized (waiter) {
                waiter.wait(maxWait);
                rv = waiter.destination;
            }
        } catch (InterruptedException ie) {
            throw new I2PSessionException("Interrupted", ie);
        }
    } finally {
        _pendingLookups.remove(waiter);
    }
    return rv;
}

Example 38 with I2PSessionException

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

the class I2PSessionImpl method removeSubsession.

/**
 *  @since 0.9.21
 */
public void removeSubsession(I2PSession session) {
    if (!(session instanceof SubSession))
        return;
    synchronized (_subsessionLock) {
        _subsessions.remove(session);
        SessionId id = ((SubSession) session).getSessionId();
        if (id != null)
            _subsessionMap.remove(id);
        // / tell the subsession
        try {
            // doesn't really throw
            session.destroySession();
        } catch (I2PSessionException ise) {
        }
    }
    // do we need this here? subsession.destroySession() calls primary
    Destination d = session.getMyDestination();
    if (d != null)
        _context.keyRing().remove(d.calculateHash());
}

Example 39 with I2PSessionException

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

the class I2PSessionImpl2 method sendBestEffort.

/**
 * TODO - Don't need to save MessageState since actuallyWait is false...
 * But for now just use sendNoEffort() instead.
 *
 * @param flags to be passed to the router
 * @since 0.8.4
 */
protected boolean sendBestEffort(Destination dest, byte[] payload, long expires, int flags) throws I2PSessionException {
    long nonce = _sendMessageNonce.incrementAndGet();
    MessageState state = new MessageState(_context, nonce, getPrefix());
    // since this is 'best effort', all we're waiting for is a status update
    // saying that the router received it - in theory, that should come back
    // immediately, but in practice can take up to a second (though usually
    // much quicker).  setting this to false will short-circuit that delay
    // true;
    boolean actuallyWait = false;
    if (actuallyWait)
        _sendingStates.put(Long.valueOf(nonce), state);
    _producer.sendMessage(this, dest, nonce, payload, expires, flags);
    if (actuallyWait) {
        try {
            state.waitForAccept(_context.clock().now() + getTimeout());
        } catch (InterruptedException ie) {
            throw new I2PSessionException("interrupted");
        } finally {
            _sendingStates.remove(Long.valueOf(nonce));
        }
    }
    boolean found = !actuallyWait || state.wasAccepted();
    if (found) {
        if (_log.shouldLog(Log.INFO))
            _log.info(getPrefix() + "Message sent after " + state.getElapsed() + "ms with " + payload.length + " bytes");
    } else {
        if (_log.shouldLog(Log.INFO))
            _log.info(getPrefix() + "Message send failed after " + state.getElapsed() + "ms with " + payload.length + " bytes");
        // disconnect();
        return false;
    }
    return found;
}

Example 40 with I2PSessionException

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

the class MessageStatusMessageHandler method handleMessage.

public void handleMessage(I2CPMessage message, I2PSessionImpl session) {
    if (_log.shouldLog(Log.DEBUG))
        _log.debug("Handle message " + message);
    MessageStatusMessage msg = (MessageStatusMessage) message;
    int status = msg.getStatus();
    long id = msg.getMessageId();
    switch(status) {
        case MessageStatusMessage.STATUS_AVAILABLE:
            ReceiveMessageBeginMessage m = new ReceiveMessageBeginMessage();
            m.setMessageId(id);
            m.setSessionId(msg.getSessionId());
            try {
                session.sendMessage(m);
            } catch (I2PSessionException ise) {
                _log.error("Error asking for the message", ise);
            }
            return;
        case MessageStatusMessage.STATUS_SEND_ACCEPTED:
            session.receiveStatus((int) id, msg.getNonce(), status);
            // noop
            return;
        default:
            if (msg.isSuccessful()) {
                if (_log.shouldLog(Log.DEBUG))
                    _log.debug("Message delivery succeeded for message " + id);
            } else {
                if (_log.shouldLog(Log.INFO))
                    _log.info("Message delivery FAILED (" + status + ") for message " + id);
            }
            // if (!skipStatus)
            session.receiveStatus((int) id, msg.getNonce(), status);
            return;
    }
}