Examples with I2PException net.i2p.I2PException used on opensource projects

Example 21 with I2PException

use of net.i2p.I2PException in project i2p.i2p by i2p.

the class IndexBean method modifyDestination.

/**
 * Modify or create a destination
 */
private String modifyDestination() {
    String privKeyFile = _config.getPrivKeyFile();
    if (privKeyFile == null)
        return "Private Key File not specified";
    TunnelController tun = getController(_tunnel);
    Properties config = getConfig();
    if (tun == null) {
        // creating new
        tun = new TunnelController(config, "", true);
        _group.addController(tun);
        saveChanges();
    } else if (tun.getIsRunning() || tun.getIsStarting()) {
        return "Tunnel must be stopped before modifying destination";
    }
    File keyFile = new File(privKeyFile);
    if (!keyFile.isAbsolute())
        keyFile = new File(_context.getConfigDir(), privKeyFile);
    PrivateKeyFile pkf = new PrivateKeyFile(keyFile);
    try {
        pkf.createIfAbsent();
    } catch (I2PException e) {
        return "Create private key file failed: " + e;
    } catch (IOException e) {
        return "Create private key file failed: " + e;
    }
    switch(_certType) {
        case Certificate.CERTIFICATE_TYPE_NULL:
        case Certificate.CERTIFICATE_TYPE_HIDDEN:
            pkf.setCertType(_certType);
            break;
        case Certificate.CERTIFICATE_TYPE_HASHCASH:
            pkf.setHashCashCert(_hashCashValue);
            break;
        case Certificate.CERTIFICATE_TYPE_SIGNED:
            if (_certSigner == null || _certSigner.trim().length() <= 0)
                return "No signing destination specified";
            // find the signer's key file...
            String signerPKF = null;
            for (int i = 0; i < getTunnelCount(); i++) {
                TunnelController c = getController(i);
                if (_certSigner.equals(c.getConfig("").getProperty(TunnelController.PROP_NAME)) || _certSigner.equals(c.getConfig("").getProperty(TunnelController.PROP_SPOOFED_HOST))) {
                    signerPKF = c.getConfig("").getProperty(TunnelController.PROP_FILE);
                    break;
                }
            }
            if (signerPKF == null || signerPKF.length() <= 0)
                return "Signing destination " + _certSigner + " not found";
            if (privKeyFile.equals(signerPKF))
                return "Self-signed destinations not allowed";
            Certificate c = pkf.setSignedCert(new PrivateKeyFile(signerPKF));
            if (c == null)
                return "Signing failed - does signer destination exist?";
            break;
        default:
            return "Unknown certificate type";
    }
    Destination newdest;
    try {
        pkf.write();
        newdest = pkf.getDestination();
    } catch (I2PException e) {
        return "Modification failed: " + e;
    } catch (IOException e) {
        return "Modification failed: " + e;
    }
    return "Destination modified - " + "New Base32 is " + newdest.toBase32() + "New Destination is " + newdest.toBase64();
}

Example 22 with I2PException

use of net.i2p.I2PException in project i2p.i2p by i2p.

the class SOCKS4aServer method getDestinationI2PSocket.

/**
 * Get an I2PSocket that can be used to send/receive 8-bit clean data
 * to/from the destination of the SOCKS connection.
 *
 * @return an I2PSocket connected with the destination
 */
public I2PSocket getDestinationI2PSocket(I2PSOCKSTunnel t) throws SOCKSException {
    setupServer();
    if (connHostName == null) {
        _log.error("BUG: destination host name has not been initialized!");
        throw new SOCKSException("BUG! See the logs!");
    }
    if (connPort == 0) {
        _log.error("BUG: destination port has not been initialized!");
        throw new SOCKSException("BUG! See the logs!");
    }
    // for errors
    DataOutputStream out;
    try {
        out = new DataOutputStream(clientSock.getOutputStream());
    } catch (IOException e) {
        throw new SOCKSException("Connection error", e);
    }
    // FIXME: here we should read our config file, select an
    // outproxy, and instantiate the proper socket class that
    // handles the outproxy itself (SOCKS4a, SOCKS4a, HTTP CONNECT...).
    I2PSocket destSock;
    try {
        if (connHostName.toLowerCase(Locale.US).endsWith(".i2p")) {
            Destination dest = _context.namingService().lookup(connHostName);
            if (dest == null) {
                try {
                    sendRequestReply(Reply.CONNECTION_REFUSED, InetAddress.getByName("127.0.0.1"), 0, out);
                } catch (IOException ioe) {
                }
                throw new SOCKSException("Host not found");
            }
            if (_log.shouldDebug())
                _log.debug("connecting to " + connHostName + "...");
            Properties overrides = new Properties();
            I2PSocketOptions sktOpts = t.buildOptions(overrides);
            sktOpts.setPort(connPort);
            destSock = t.createI2PSocket(dest, sktOpts);
        } else if ("localhost".equals(connHostName) || "127.0.0.1".equals(connHostName)) {
            String err = "No localhost accesses allowed through the Socks Proxy";
            _log.error(err);
            try {
                sendRequestReply(Reply.CONNECTION_REFUSED, InetAddress.getByName("127.0.0.1"), 0, out);
            } catch (IOException ioe) {
            }
            throw new SOCKSException(err);
        /**
         **
         *            } else if (connPort == 80) {
         *                // rewrite GET line to include hostname??? or add Host: line???
         *                // or forward to local eepProxy (but that's a Socket not an I2PSocket)
         *                // use eepProxy configured outproxies?
         *                String err = "No handler for HTTP outproxy implemented - to: " + connHostName;
         *                _log.error(err);
         *                try {
         *                    sendRequestReply(Reply.CONNECTION_REFUSED, InetAddress.getByName("127.0.0.1"), 0, out);
         *                } catch (IOException ioe) {}
         *                throw new SOCKSException(err);
         ***
         */
        } else {
            Outproxy outproxy = getOutproxyPlugin();
            if (outproxy != null) {
                try {
                    destSock = new SocketWrapper(outproxy.connect(connHostName, connPort));
                } catch (IOException ioe) {
                    try {
                        sendRequestReply(Reply.CONNECTION_REFUSED, InetAddress.getByName("127.0.0.1"), 0, out);
                    } catch (IOException ioe2) {
                    }
                    throw new SOCKSException("connect failed via outproxy plugin", ioe);
                }
            } else {
                List<String> proxies = t.getProxies(connPort);
                if (proxies == null || proxies.isEmpty()) {
                    String err = "No outproxy configured for port " + connPort + " and no default configured either - host: " + connHostName;
                    _log.error(err);
                    try {
                        sendRequestReply(Reply.CONNECTION_REFUSED, InetAddress.getByName("127.0.0.1"), 0, out);
                    } catch (IOException ioe) {
                    }
                    throw new SOCKSException(err);
                }
                int p = _context.random().nextInt(proxies.size());
                String proxy = proxies.get(p);
                Destination dest = _context.namingService().lookup(proxy);
                if (dest == null) {
                    try {
                        sendRequestReply(Reply.CONNECTION_REFUSED, InetAddress.getByName("127.0.0.1"), 0, out);
                    } catch (IOException ioe) {
                    }
                    throw new SOCKSException("Outproxy not found");
                }
                if (_log.shouldDebug())
                    _log.debug("connecting to port " + connPort + " proxy " + proxy + " for " + connHostName + "...");
                // this isn't going to work, these need to be socks outproxies so we need
                // to do a socks session to them?
                destSock = t.createI2PSocket(dest);
            }
        }
        confirmConnection();
        _log.debug("connection confirmed - exchanging data...");
    } catch (DataFormatException e) {
        try {
            sendRequestReply(Reply.CONNECTION_REFUSED, InetAddress.getByName("127.0.0.1"), 0, out);
        } catch (IOException ioe) {
        }
        throw new SOCKSException("Error in destination format", e);
    } catch (IOException e) {
        try {
            sendRequestReply(Reply.CONNECTION_REFUSED, InetAddress.getByName("127.0.0.1"), 0, out);
        } catch (IOException ioe) {
        }
        throw new SOCKSException("Error connecting", e);
    } catch (I2PException e) {
        try {
            sendRequestReply(Reply.CONNECTION_REFUSED, InetAddress.getByName("127.0.0.1"), 0, out);
        } catch (IOException ioe) {
        }
        throw new SOCKSException("Error connecting", e);
    }
    return destSock;
}

Example 23 with I2PException

use of net.i2p.I2PException in project i2p.i2p-bote by i2p.

the class SeedlessAnnounce method doSeedlessAnnounce.

private synchronized void doSeedlessAnnounce() {
    List<String> seedlessServers = seedlessScrapeServers.getSeedlessServers();
    if (seedlessServers.isEmpty()) {
        // try again in a minute.
        log.error("SeedlessServers.isEmpty, will retry shortly.");
        lastSeedlessAnnounce = System.currentTimeMillis() - (interval - TimeUnit.MINUTES.toMillis(1));
        return;
    }
    // Announce to 10 servers.
    // We do this over the i2pSocket.
    int successful = Math.min(10, seedlessServers.size());
    log.debug("Try to announce to " + successful + " Seedless Servers");
    Collections.shuffle(seedlessServers, new Random());
    Iterator<String> it = seedlessServers.iterator();
    String line;
    I2PSocket I2P;
    InputStream Iin;
    OutputStream Iout;
    BufferedReader data;
    Boolean didsomething = false;
    BufferedWriter output;
    while (successful > 0 && it.hasNext()) {
        lastSeedlessAnnounce = System.currentTimeMillis();
        String b32 = it.next();
        Destination dest = null;
        I2P = null;
        try {
            lastSeedlessAnnounce = System.currentTimeMillis();
            // deprecated dest = I2PTunnel.destFromName(b32);
            dest = I2PAppContext.getGlobalContext().namingService().lookup(b32);
            lastSeedlessAnnounce = System.currentTimeMillis();
            if (dest == null) {
                log.debug("Could not find the destination: <" + b32 + ">");
                continue;
            }
            line = dest.toBase64();
            dest = new Destination();
            dest.fromBase64(line);
            I2P = socketManager.connect(dest);
            // I2P.setReadTimeout(0); // temp bugfix, this *SHOULD* be the default
            // make readers/writers
            Iin = I2P.getInputStream();
            Iout = I2P.getOutputStream();
            output = new BufferedWriter(new OutputStreamWriter(Iout));
            output.write(announceString);
            output.flush();
            data = new BufferedReader(new InputStreamReader(Iin));
            // Check for success.
            line = data.readLine();
            if (line != null) {
                if (line.contains(" 200 ")) {
                    log.debug("Announced to " + b32);
                    successful--;
                    didsomething = true;
                } else {
                    log.debug("Announce to " + b32 + " Failed with Error " + line);
                    log.debug("We sent " + announceString);
                }
            }
            while ((line = data.readLine()) != null) {
            }
        } catch (DataFormatException ex) {
            log.debug("Not base64!", ex);
        } catch (ConnectException ex) {
            log.debug("ConnectException", ex);
        } catch (NoRouteToHostException ex) {
            log.debug("NoRouteToHostException", ex);
        } catch (InterruptedIOException ex) {
            log.debug("InterruptedIOException", ex);
        } catch (IOException ex) {
            log.debug("IOException", ex);
            ex.printStackTrace();
        } catch (I2PException ex) {
            log.debug("I2PException", ex);
        }
        if (I2P != null) {
            try {
                I2P.close();
            } catch (IOException ex) {
            // don't care.
            }
        }
    }
    if (!didsomething) {
        // try again in 1 minute.
        lastSeedlessAnnounce = System.currentTimeMillis() - (interval - TimeUnit.MINUTES.toMillis(1));
        return;
    }
    lastSeedlessAnnounce = System.currentTimeMillis();
}

Example 24 with I2PException

use of net.i2p.I2PException in project i2p.i2p by i2p.

the class I2PSocketManagerFactory method createManager.

/**
 * Create a socket manager using a brand new destination connected to the
 * I2CP router on the given machine reachable through the given port.
 *
 * Blocks for a long time while the router builds tunnels.
 * The nonblocking createDisconnectedManager() is preferred.
 *
 * @param i2cpHost I2CP host null to use default, ignored if in router context
 * @param i2cpPort I2CP port <= 0 to use default, ignored if in router context
 * @param opts Streaming and I2CP options, may be null
 * @return the newly created socket manager, or null if there were errors
 */
public static I2PSocketManager createManager(String i2cpHost, int i2cpPort, Properties opts) {
    I2PClient client = I2PClientFactory.createClient();
    ByteArrayOutputStream keyStream = new ByteArrayOutputStream(1024);
    try {
        client.createDestination(keyStream, getSigType(opts));
        ByteArrayInputStream in = new ByteArrayInputStream(keyStream.toByteArray());
        return createManager(in, i2cpHost, i2cpPort, opts);
    } catch (IOException ioe) {
        getLog().error("Error creating the destination for socket manager", ioe);
        return null;
    } catch (I2PException ie) {
        getLog().error("Error creating the destination for socket manager", ie);
        return null;
    }
}

Example 25 with I2PException

use of net.i2p.I2PException in project i2p.i2p by i2p.

the class I2PSocketManagerFactory method createDisconnectedManager.

/**
 * Create a disconnected socket manager using the destination loaded from the given private key
 * stream, or null for a transient destination.
 *
 * Non-blocking. Does not connect to the router or build tunnels.
 * For servers, caller MUST call getSession().connect() to build tunnels and start listening.
 * For clients, caller may do that to build tunnels in advance;
 * otherwise, the first call to connect() will initiate a connection to the router,
 * with significant delay for tunnel building.
 *
 * @param myPrivateKeyStream private key stream, format is specified in {@link net.i2p.data.PrivateKeyFile PrivateKeyFile}
 *                           or null for a transient destination. Caller must close.
 * @param i2cpHost I2CP host null to use default, ignored if in router context
 * @param i2cpPort I2CP port <= 0 to use default, ignored if in router context
 * @param opts Streaming and I2CP options, may be null
 * @return the newly created socket manager, non-null (throws on error)
 * @since 0.9.8
 */
public static I2PSocketManager createDisconnectedManager(InputStream myPrivateKeyStream, String i2cpHost, int i2cpPort, Properties opts) throws I2PSessionException {
    if (myPrivateKeyStream == null) {
        I2PClient client = I2PClientFactory.createClient();
        ByteArrayOutputStream keyStream = new ByteArrayOutputStream(1024);
        try {
            client.createDestination(keyStream, getSigType(opts));
        } catch (I2PException e) {
            throw new I2PSessionException("Error creating keys", e);
        } catch (IOException e) {
            throw new I2PSessionException("Error creating keys", e);
        }
        myPrivateKeyStream = new ByteArrayInputStream(keyStream.toByteArray());
    }
    return createManager(myPrivateKeyStream, i2cpHost, i2cpPort, opts, false);
}