Examples with DataFormatException net.i2p.data.DataFormatException used on opensource projects

Example 66 with DataFormatException

use of net.i2p.data.DataFormatException in project i2p.i2p by i2p.

the class InboundEstablishState method buildIdentity.

/**
 *  Construct Alice's RouterIdentity.
 *  Must have received all fragments.
 *  Sets _receivedUnconfirmedIdentity, unless invalid.
 *
 *  Caller must synch on this.
 *
 *  @since 0.9.16 was in verifyIdentity()
 */
private void buildIdentity() {
    if (_receivedUnconfirmedIdentity != null)
        // dup pkt?
        return;
    int frags = _receivedIdentity.length;
    byte[] ident;
    if (frags > 1) {
        int identSize = 0;
        for (int i = 0; i < _receivedIdentity.length; i++) identSize += _receivedIdentity[i].length;
        ident = new byte[identSize];
        int off = 0;
        for (int i = 0; i < _receivedIdentity.length; i++) {
            int len = _receivedIdentity[i].length;
            System.arraycopy(_receivedIdentity[i], 0, ident, off, len);
            off += len;
        }
    } else {
        // no need to copy
        ident = _receivedIdentity[0];
    }
    ByteArrayInputStream in = new ByteArrayInputStream(ident);
    RouterIdentity peer = new RouterIdentity();
    try {
        peer.readBytes(in);
        _receivedUnconfirmedIdentity = peer;
    } catch (DataFormatException dfe) {
        if (_log.shouldLog(Log.WARN))
            _log.warn("Improperly formatted yet fully received ident", dfe);
    } catch (IOException ioe) {
        if (_log.shouldLog(Log.WARN))
            _log.warn("Improperly formatted yet fully received ident", ioe);
    }
}

Example 67 with DataFormatException

use of net.i2p.data.DataFormatException in project i2p.i2p by i2p.

the class LocalHTTPServer method serveLocalFile.

/**
 *  Very simple web server.
 *
 *  Serve local files in the docs/ directory, for CSS and images in
 *  error pages, using the reserved address proxy.i2p
 *  (similar to p.p in privoxy).
 *  This solves the problems with including links to the router console,
 *  as assuming the router console is at 127.0.0.1 leads to broken
 *  links if it isn't.
 *
 *  Ignore all request headers (If-Modified-Since, etc.)
 *
 *  There is basic protection here -
 *  FileUtil.readFile() prevents traversal above the base directory -
 *  but inproxy/gateway ops would be wise to block proxy.i2p to prevent
 *  exposing the docs/ directory or perhaps other issues through
 *  uncaught vulnerabilities.
 *  Restrict to the /themes/ directory for now.
 *
 *  @param targetRequest decoded path only, non-null
 *  @param query raw (encoded), may be null
 */
public static void serveLocalFile(OutputStream out, String method, String targetRequest, String query, String proxyNonce) throws IOException {
    // a home page message for the curious...
    if (targetRequest.equals("/")) {
        out.write(OK.getBytes("UTF-8"));
        out.flush();
        return;
    }
    if ((method.equals("GET") || method.equals("HEAD")) && targetRequest.startsWith("/themes/") && !targetRequest.contains("..")) {
        String filename = null;
        try {
            // "/themes/".length
            filename = targetRequest.substring(8);
        } catch (IndexOutOfBoundsException ioobe) {
            return;
        }
        // theme hack
        if (filename.startsWith("console/default/"))
            filename = filename.replaceFirst("default", I2PAppContext.getGlobalContext().getProperty("routerconsole.theme", "light"));
        File themesDir = new File(I2PAppContext.getGlobalContext().getBaseDir(), "docs/themes");
        File file = new File(themesDir, filename);
        if (file.exists() && !file.isDirectory()) {
            String type;
            if (filename.endsWith(".css"))
                type = "text/css";
            else if (filename.endsWith(".ico"))
                type = "image/x-icon";
            else if (filename.endsWith(".png"))
                type = "image/png";
            else if (filename.endsWith(".jpg"))
                type = "image/jpeg";
            else
                type = "text/html";
            out.write("HTTP/1.1 200 OK\r\nContent-Type: ".getBytes("UTF-8"));
            out.write(type.getBytes("UTF-8"));
            out.write("\r\nCache-Control: max-age=86400\r\nConnection: close\r\nProxy-Connection: close\r\n\r\n".getBytes("UTF-8"));
            FileUtil.readFile(filename, themesDir.getAbsolutePath(), out);
            return;
        }
    }
    // Do the add and redirect.
    if (targetRequest.equals("/add")) {
        if (query == null) {
            out.write(ERR_ADD.getBytes("UTF-8"));
            return;
        }
        Map<String, String> opts = new HashMap<String, String>(8);
        // this only works if all keys are followed by =value
        StringTokenizer tok = new StringTokenizer(query, "=&;");
        while (tok.hasMoreTokens()) {
            String k = tok.nextToken();
            if (!tok.hasMoreTokens())
                break;
            String v = tok.nextToken();
            opts.put(decode(k), decode(v));
        }
        String url = opts.get("url");
        String host = opts.get("host");
        String b64Dest = opts.get("dest");
        String nonce = opts.get("nonce");
        String referer = opts.get("referer");
        String book = "privatehosts.txt";
        if (opts.get("master") != null)
            book = "userhosts.txt";
        else if (opts.get("router") != null)
            book = "hosts.txt";
        Destination dest = null;
        if (b64Dest != null) {
            try {
                dest = new Destination(b64Dest);
            } catch (DataFormatException dfe) {
                System.err.println("Bad dest to save?" + b64Dest);
            }
        }
        // System.err.println("nonce        : \"" + nonce         + "\"");
        if (proxyNonce.equals(nonce) && url != null && host != null && dest != null) {
            NamingService ns = I2PAppContext.getGlobalContext().namingService();
            Properties nsOptions = new Properties();
            nsOptions.setProperty("list", book);
            if (referer != null && referer.startsWith("http")) {
                String ref = DataHelper.escapeHTML(referer);
                String from = "<a href=\"" + ref + "\">" + ref + "</a>";
                nsOptions.setProperty("s", _t("Added via address helper from {0}", from));
            } else {
                nsOptions.setProperty("s", _t("Added via address helper"));
            }
            boolean success = ns.put(host, dest, nsOptions);
            writeRedirectPage(out, success, host, book, url);
            return;
        }
        out.write(ERR_ADD.getBytes("UTF-8"));
    } else {
        out.write(ERR_404.getBytes("UTF-8"));
    }
    out.flush();
}

Example 68 with DataFormatException

use of net.i2p.data.DataFormatException in project i2p.i2p by i2p.

the class SOCKS5Server 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, SOCKS5, HTTP CONNECT...).
    I2PSocket destSock;
    try {
        if (connHostName.toLowerCase(Locale.US).endsWith(".i2p")) {
            // Let's not do a new Dest for every request, huh?
            // I2PSocketManager sm = I2PSocketManagerFactory.createManager();
            // destSock = sm.connect(I2PTunnel.destFromName(connHostName), null);
            Destination dest = _context.namingService().lookup(connHostName);
            if (dest == null) {
                try {
                    sendRequestReply(Reply.HOST_UNREACHABLE, AddressType.DOMAINNAME, null, "0.0.0.0", 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_NOT_ALLOWED_BY_RULESET, AddressType.DOMAINNAME, null, "0.0.0.0", 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";
         *                _log.error(err);
         *                try {
         *                    sendRequestReply(Reply.CONNECTION_NOT_ALLOWED_BY_RULESET, AddressType.DOMAINNAME, null, "0.0.0.0", 0, out);
         *                } catch (IOException ioe) {}
         *                throw new SOCKSException(err);
         ***
         */
        } else {
            Outproxy outproxy = getOutproxyPlugin();
            if (outproxy != null) {
                // but here, we wrap a Socket in a I2PSocket and use the regular Runner.
                try {
                    destSock = new SocketWrapper(outproxy.connect(connHostName, connPort));
                } catch (IOException ioe) {
                    try {
                        sendRequestReply(Reply.HOST_UNREACHABLE, AddressType.DOMAINNAME, null, "0.0.0.0", 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";
                    _log.error(err);
                    try {
                        sendRequestReply(Reply.CONNECTION_NOT_ALLOWED_BY_RULESET, AddressType.DOMAINNAME, null, "0.0.0.0", 0, out);
                    } catch (IOException ioe) {
                    }
                    throw new SOCKSException(err);
                }
                int p = _context.random().nextInt(proxies.size());
                String proxy = proxies.get(p);
                if (_log.shouldLog(Log.DEBUG))
                    _log.debug("connecting to proxy " + proxy + " for " + connHostName + " port " + connPort);
                try {
                    destSock = outproxyConnect(t, proxy);
                } catch (SOCKSException se) {
                    try {
                        sendRequestReply(Reply.HOST_UNREACHABLE, AddressType.DOMAINNAME, null, "0.0.0.0", 0, out);
                    } catch (IOException ioe) {
                    }
                    throw se;
                }
            }
        }
        confirmConnection();
        _log.debug("connection confirmed - exchanging data...");
    } catch (DataFormatException e) {
        if (_log.shouldLog(Log.WARN))
            _log.warn("socks error", e);
        try {
            sendRequestReply(Reply.HOST_UNREACHABLE, AddressType.DOMAINNAME, null, "0.0.0.0", 0, out);
        } catch (IOException ioe) {
        }
        throw new SOCKSException("Error in destination format");
    } catch (IOException e) {
        if (_log.shouldLog(Log.WARN))
            _log.warn("socks error", e);
        try {
            sendRequestReply(Reply.HOST_UNREACHABLE, AddressType.DOMAINNAME, null, "0.0.0.0", 0, out);
        } catch (IOException ioe) {
        }
        throw new SOCKSException("Connection error", e);
    } catch (I2PException e) {
        if (_log.shouldLog(Log.WARN))
            _log.warn("socks error", e);
        try {
            sendRequestReply(Reply.HOST_UNREACHABLE, AddressType.DOMAINNAME, null, "0.0.0.0", 0, out);
        } catch (IOException ioe) {
        }
        throw new SOCKSException("Connection error", e);
    }
    return destSock;
}

Example 69 with DataFormatException

use of net.i2p.data.DataFormatException in project i2p.i2p by i2p.

the class AddressbookBean method getMessages.

/**
 * Perform actions, returning messages about this.
 */
public String getMessages() {
    // Loading config and addressbook moved into getLoadBookMessages()
    String message = "";
    if (action != null) {
        if (_context.getBooleanProperty(PROP_PW_ENABLE) || (serial != null && serial.equals(lastSerial))) {
            boolean changed = false;
            if (action.equals(_t("Add")) || action.equals(_t("Replace"))) {
                if (addressbook != null && hostname != null && destination != null) {
                    try {
                        // throws IAE with translated message
                        String host = AddressBean.toASCII(hostname);
                        String displayHost = host.equals(hostname) ? hostname : hostname + " (" + host + ')';
                        String oldDest = (String) addressbook.get(host);
                        if (destination.equals(oldDest)) {
                            message = _t("Host name {0} is already in address book, unchanged.", displayHost);
                        } else if (oldDest != null && !action.equals(_t("Replace"))) {
                            message = _t("Host name {0} is already in address book with a different destination. Click \"Replace\" to overwrite.", displayHost);
                        } else {
                            boolean valid = true;
                            try {
                                // just to check validity
                                new Destination(destination);
                            } catch (DataFormatException dfe) {
                                valid = false;
                            }
                            if (valid) {
                                addressbook.put(host, destination);
                                changed = true;
                                if (oldDest == null)
                                    message = _t("Destination added for {0}.", displayHost);
                                else
                                    message = _t("Destination changed for {0}.", displayHost);
                                if (!host.endsWith(".i2p"))
                                    message += "<br>" + _t("Warning - host name does not end with \".i2p\"");
                                // clear form
                                hostname = null;
                                destination = null;
                            } else {
                                message = _t("Invalid Base 64 destination.");
                            }
                        }
                    } catch (IllegalArgumentException iae) {
                        message = iae.getMessage();
                        if (message == null)
                            message = _t("Invalid host name \"{0}\".", hostname);
                    }
                } else {
                    message = _t("Please enter a host name and destination");
                }
                // clear search when adding
                search = null;
            } else if (action.equals(_t("Delete Selected")) || action.equals(_t("Delete Entry"))) {
                String name = null;
                int deleted = 0;
                for (String n : deletionMarks) {
                    addressbook.remove(n);
                    String uni = AddressBean.toUnicode(n);
                    String displayHost = uni.equals(n) ? n : uni + " (" + n + ')';
                    if (deleted++ == 0) {
                        changed = true;
                        name = displayHost;
                    }
                }
                if (changed) {
                    if (deleted == 1)
                        message = _t("Destination {0} deleted.", name);
                    else
                        // parameter will always be >= 2
                        message = ngettext("1 destination deleted.", "{0} destinations deleted.", deleted);
                } else {
                    message = _t("No entries selected to delete.");
                }
                if (action.equals(_t("Delete Entry")))
                    search = null;
            } else if (action.equals(_t("Add Alternate"))) {
                // button won't be in UI
                message = "Unsupported";
            }
            if (changed) {
                try {
                    save();
                    message += "<br>" + _t("Address book saved.");
                } catch (IOException e) {
                    warn(e);
                    message += "<br>" + _t("ERROR: Could not write addressbook file.");
                }
            }
        } else {
            message = _t("Invalid form submission, probably because you used the \"back\" or \"reload\" button on your browser. Please resubmit.") + ' ' + _t("If the problem persists, verify that you have cookies enabled in your browser.");
        }
    }
    action = null;
    if (message.length() > 0)
        message = "<p class=\"messages\">" + message + "</p>";
    return message;
}

Example 70 with DataFormatException

use of net.i2p.data.DataFormatException in project i2p.i2p by i2p.

the class NamingServiceBean method getMessages.

/**
 * Perform actions, returning messages about this.
 */
@Override
public String getMessages() {
    if (isDirect())
        return super.getMessages();
    // Loading config and addressbook moved into getLoadBookMessages()
    String message = "";
    if (action != null) {
        Properties nsOptions = new Properties();
        // only blockfile needs this
        nsOptions.setProperty("list", getFileName());
        if (_context.getBooleanProperty(PROP_PW_ENABLE) || (serial != null && serial.equals(lastSerial))) {
            boolean changed = false;
            if (action.equals(_t("Add")) || action.equals(_t("Replace")) || action.equals(_t("Add Alternate"))) {
                if (hostname != null && destination != null) {
                    try {
                        // throws IAE with translated message
                        String host = AddressBean.toASCII(hostname);
                        String displayHost = host.equals(hostname) ? hostname : hostname + " (" + host + ')';
                        Properties outProperties = new Properties();
                        Destination oldDest = getNamingService().lookup(host, nsOptions, outProperties);
                        if (oldDest != null && destination.equals(oldDest.toBase64())) {
                            message = _t("Host name {0} is already in address book, unchanged.", displayHost);
                        } else if (oldDest == null && action.equals(_t("Add Alternate"))) {
                            message = _t("Host name {0} is not in  the address book.", displayHost);
                        } else if (oldDest != null && action.equals(_t("Add"))) {
                            message = _t("Host name {0} is already in address book with a different destination. Click \"Replace\" to overwrite.", displayHost);
                        } else {
                            try {
                                Destination dest = new Destination(destination);
                                if (oldDest != null) {
                                    nsOptions.putAll(outProperties);
                                    String now = Long.toString(_context.clock().now());
                                    if (action.equals(_t("Add Alternate")))
                                        nsOptions.setProperty("a", now);
                                    else
                                        nsOptions.setProperty("m", now);
                                }
                                nsOptions.setProperty("s", _t("Manually added via SusiDNS"));
                                boolean success;
                                if (action.equals(_t("Add Alternate"))) {
                                    // check all for dups
                                    List<Destination> all = getNamingService().lookupAll(host);
                                    if (all == null || !all.contains(dest)) {
                                        success = getNamingService().addDestination(host, dest, nsOptions);
                                    } else {
                                        // will get generic message below
                                        success = false;
                                    }
                                } else {
                                    success = getNamingService().put(host, dest, nsOptions);
                                }
                                if (success) {
                                    changed = true;
                                    if (oldDest == null || action.equals(_t("Add Alternate")))
                                        message = _t("Destination added for {0}.", displayHost);
                                    else
                                        message = _t("Destination changed for {0}.", displayHost);
                                    if (!host.endsWith(".i2p"))
                                        message += "<br>" + _t("Warning - host name does not end with \".i2p\"");
                                    // clear form
                                    hostname = null;
                                    destination = null;
                                } else {
                                    message = _t("Failed to add Destination for {0} to naming service {1}", displayHost, getNamingService().getName()) + "<br>";
                                }
                            } catch (DataFormatException dfe) {
                                message = _t("Invalid Base 64 destination.");
                            }
                        }
                    } catch (IllegalArgumentException iae) {
                        message = iae.getMessage();
                        if (message == null)
                            message = _t("Invalid host name \"{0}\".", hostname);
                    }
                } else {
                    message = _t("Please enter a host name and destination");
                }
                // clear search when adding
                search = null;
            } else if (action.equals(_t("Delete Selected")) || action.equals(_t("Delete Entry"))) {
                String name = null;
                int deleted = 0;
                Destination matchDest = null;
                if (action.equals(_t("Delete Entry"))) {
                    // remove specified dest only in case there is more than one
                    if (destination != null) {
                        try {
                            matchDest = new Destination(destination);
                        } catch (DataFormatException dfe) {
                        }
                    }
                }
                for (String n : deletionMarks) {
                    boolean success;
                    if (matchDest != null)
                        success = getNamingService().remove(n, matchDest, nsOptions);
                    else
                        success = getNamingService().remove(n, nsOptions);
                    String uni = AddressBean.toUnicode(n);
                    String displayHost = uni.equals(n) ? n : uni + " (" + n + ')';
                    if (!success) {
                        message += _t("Failed to delete Destination for {0} from naming service {1}", displayHost, getNamingService().getName()) + "<br>";
                    } else if (deleted++ == 0) {
                        changed = true;
                        name = displayHost;
                    }
                }
                if (changed) {
                    if (deleted == 1)
                        // parameter is a host name
                        message += _t("Destination {0} deleted.", name);
                    else
                        // parameter will always be >= 2
                        message = ngettext("1 destination deleted.", "{0} destinations deleted.", deleted);
                } else {
                    message = _t("No entries selected to delete.");
                }
                // clear search when deleting
                if (action.equals(_t("Delete Entry")))
                    search = null;
            }
            if (changed) {
                message += "<br>" + _t("Address book saved.");
            }
        } else {
            message = _t("Invalid form submission, probably because you used the \"back\" or \"reload\" button on your browser. Please resubmit.") + ' ' + _t("If the problem persists, verify that you have cookies enabled in your browser.");
        }
    }
    action = null;
    if (message.length() > 0)
        message = "<p class=\"messages\">" + message + "</p>";
    return message;
}