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

Example 71 with DataFormatException

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

the class RouterInfo method writeBytes.

/**
 *  This does NOT validate the signature
 */
public void writeBytes(OutputStream out) throws DataFormatException, IOException {
    if (_signature == null)
        throw new DataFormatException("Signature is null");
    writeDataBytes(out);
    _signature.writeBytes(out);
}

Example 72 with DataFormatException

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

the class RouterInfo method writeDataBytes.

/**
 * Write out the raw payload of the routerInfo, excluding the signature.  This
 * caches the data in memory if possible.
 *
 * @throws DataFormatException if the data is somehow b0rked (missing props, etc)
 * @throws IOException
 * @since 0.9.24
 */
private void writeDataBytes(OutputStream out) throws DataFormatException, IOException {
    if (_identity == null)
        throw new DataFormatException("Missing identity");
    if (_published < 0)
        throw new DataFormatException("Invalid published date: " + _published);
    _identity.writeBytes(out);
    // avoid thrashing objects
    // DataHelper.writeDate(out, new Date(_published));
    DataHelper.writeLong(out, 8, _published);
    int sz = _addresses.size();
    if (sz <= 0 || isHidden()) {
        // Do not send IP address to peers in hidden mode
        out.write((byte) 0);
    } else {
        out.write((byte) sz);
        for (RouterAddress addr : _addresses) {
            addr.writeBytes(out);
        }
    }
    // XXX: what about peers?
    // answer: they're always empty... they're a placeholder for one particular
    // method of trusted links, which isn't implemented in the router
    // at the moment, and may not be later.
    int psz = _peers == null ? 0 : _peers.size();
    out.write((byte) psz);
    if (psz > 0) {
        Collection<Hash> peers = _peers;
        if (psz > 1)
            // WARNING this sort algorithm cannot be changed, as it must be consistent
            // network-wide. The signature is not checked at readin time, but only
            // later, and the hashes are stored in a Set, not a List.
            peers = SortHelper.sortStructures(peers);
        for (Hash peerHash : peers) {
            peerHash.writeBytes(out);
        }
    }
    DataHelper.writeProperties(out, _options);
}

Example 73 with DataFormatException

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

the class RouterInfo method main.

/**
 *  Print out routerinfos from files specified on the command line.
 *  Exits 1 if any RI is invalid, fails signature, etc.
 *  @since 0.8
 */
public static void main(String[] args) {
    if (args.length <= 0) {
        System.err.println("Usage: RouterInfo file ...");
        System.exit(1);
    }
    boolean fail = false;
    for (int i = 0; i < args.length; i++) {
        RouterInfo ri = new RouterInfo();
        InputStream is = null;
        try {
            is = new java.io.FileInputStream(args[i]);
            ri.readBytes(is);
            if (ri.isValid()) {
                System.out.println(ri.toString());
            } else {
                System.err.println("Router info " + args[i] + " is invalid");
                fail = true;
            }
        } catch (IOException e) {
            System.err.println("Error reading " + args[i] + ": " + e);
            fail = true;
        } catch (DataFormatException e) {
            System.err.println("Error reading " + args[i] + ": " + e);
            fail = true;
        } finally {
            if (is != null) {
                try {
                    is.close();
                } catch (IOException ioe) {
                }
            }
        }
    }
    if (fail)
        System.exit(1);
}

Example 74 with DataFormatException

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

the class RouterInfo method readBytes.

/**
 *  If verifySig is true,
 *  this validates the signature while reading in,
 *  and throws a DataFormatException if the sig is invalid.
 *  This is faster than reserializing to validate later.
 *
 *  @throws IllegalStateException if RouterInfo was already read in
 *  @since 0.9
 */
public void readBytes(InputStream in, boolean verifySig) throws DataFormatException, IOException {
    if (_signature != null)
        throw new IllegalStateException();
    _identity = new RouterIdentity();
    _identity.readBytes(in);
    // can't set the digest until we know the sig type
    InputStream din;
    MessageDigest digest;
    if (verifySig) {
        SigType type = _identity.getSigningPublicKey().getType();
        if (type != SigType.EdDSA_SHA512_Ed25519) {
            // This won't work for EdDSA
            digest = _identity.getSigningPublicKey().getType().getDigestInstance();
            // TODO any better way?
            digest.update(_identity.toByteArray());
            din = new DigestInputStream(in, digest);
        } else {
            digest = null;
            din = in;
        }
    } else {
        digest = null;
        din = in;
    }
    // avoid thrashing objects
    // Date when = DataHelper.readDate(in);
    // if (when == null)
    // _published = 0;
    // else
    // _published = when.getTime();
    _published = DataHelper.readLong(din, 8);
    int numAddresses = (int) DataHelper.readLong(din, 1);
    for (int i = 0; i < numAddresses; i++) {
        RouterAddress address = new RouterAddress();
        address.readBytes(din);
        _addresses.add(address);
    }
    int numPeers = (int) DataHelper.readLong(din, 1);
    if (numPeers == 0) {
        _peers = null;
    } else {
        _peers = new HashSet<Hash>(numPeers);
        for (int i = 0; i < numPeers; i++) {
            Hash peerIdentityHash = new Hash();
            peerIdentityHash.readBytes(din);
            _peers.add(peerIdentityHash);
        }
    }
    DataHelper.readProperties(din, _options);
    _signature = new Signature(_identity.getSigningPublicKey().getType());
    _signature.readBytes(in);
    if (verifySig) {
        SigType type = _identity.getSigningPublicKey().getType();
        if (type != SigType.EdDSA_SHA512_Ed25519) {
            // This won't work for EdDSA
            SimpleDataStructure hash = _identity.getSigningPublicKey().getType().getHashInstance();
            hash.setData(digest.digest());
            _isValid = DSAEngine.getInstance().verifySignature(_signature, hash, _identity.getSigningPublicKey());
            _validated = true;
        } else {
            doValidate();
        }
        if (!_isValid) {
            throw new DataFormatException("Bad sig");
        }
    }
// _log.debug("Read routerInfo: " + toString());
}

Example 75 with DataFormatException

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

the class BundleRouterInfos method main.

/**
 *  Usage: PersistentDataStore -i configDir -o toDir -c count
 *
 *  Copy a random selection of 'count' router infos from configDir/netDb
 *  to 'toDir'. Skip your own router info, and old, hidden, unreachable, and
 *  introduced routers, and those from bad countries.
 *
 *  @since 0.9.15
 */
public static void main(String[] args) {
    Getopt g = new Getopt("PersistentDataStore", args, "i:o:c:");
    String in = System.getProperty("user.home") + "/.i2p";
    String out = "netDb";
    int count = 200;
    boolean error = false;
    int c;
    while ((c = g.getopt()) != -1) {
        switch(c) {
            case 'i':
                in = g.getOptarg();
                break;
            case 'o':
                out = g.getOptarg();
                break;
            case 'c':
                String scount = g.getOptarg();
                try {
                    count = Integer.parseInt(scount);
                } catch (NumberFormatException nfe) {
                    error = true;
                }
                break;
            case '?':
            case ':':
            default:
                error = true;
        }
    }
    if (error) {
        usage();
        System.exit(1);
    }
    Properties props = new Properties();
    props.setProperty(GeoIP.PROP_GEOIP_DIR, System.getProperty("user.dir") + "/installer/resources");
    GeoIP geoIP = new GeoIP(new I2PAppContext(props));
    File confDir = new File(in);
    File dbDir = new File(confDir, "netDb");
    if (!dbDir.exists()) {
        System.out.println("NetDB directory " + dbDir + " does not exist");
        System.exit(1);
    }
    File myFile = new File(confDir, "router.info");
    File toDir = new File(out);
    toDir.mkdirs();
    InputStream fis = null;
    Hash me = null;
    try {
        fis = new BufferedInputStream(new FileInputStream(myFile));
        RouterInfo ri = new RouterInfo();
        // true = verify sig on read
        ri.readBytes(fis, true);
        me = ri.getIdentity().getHash();
    } catch (IOException e) {
    // System.out.println("Can't determine our identity");
    } catch (DataFormatException e) {
    // System.out.println("Can't determine our identity");
    } finally {
        if (fis != null)
            try {
                fis.close();
            } catch (IOException ioe) {
            }
    }
    int routerCount = 0;
    List<File> toRead = new ArrayList<File>(2048);
    for (int j = 0; j < Base64.ALPHABET_I2P.length(); j++) {
        File subdir = new File(dbDir, PersistentDataStore.DIR_PREFIX + Base64.ALPHABET_I2P.charAt(j));
        File[] files = subdir.listFiles(PersistentDataStore.RI_FILTER);
        if (files == null)
            continue;
        routerCount += files.length;
        for (int i = 0; i < files.length; i++) {
            toRead.add(files[i]);
        }
    }
    if (toRead.isEmpty()) {
        System.out.println("No files to copy in " + dbDir);
        System.exit(1);
    }
    Collections.shuffle(toRead);
    int copied = 0;
    long tooOld = System.currentTimeMillis() - 7 * 24 * 60 * 60 * 1000L;
    Map<String, String> ipMap = new HashMap<String, String>(count);
    for (File file : toRead) {
        if (copied >= count)
            break;
        Hash key = PersistentDataStore.getRouterInfoHash(file.getName());
        if (key == null) {
            System.out.println("Skipping bad " + file);
            continue;
        }
        if (key.equals(me)) {
            System.out.println("Skipping my RI");
            continue;
        }
        fis = null;
        try {
            fis = new BufferedInputStream(new FileInputStream(file));
            RouterInfo ri = new RouterInfo();
            // true = verify sig on read
            ri.readBytes(fis, true);
            try {
                fis.close();
            } catch (IOException ioe) {
            }
            fis = null;
            if (ri.getPublished() < tooOld) {
                System.out.println("Skipping too old " + key);
                continue;
            }
            if (ri.getCapabilities().contains("U")) {
                System.out.println("Skipping unreachable " + key);
                continue;
            }
            if (ri.getCapabilities().contains("K")) {
                System.out.println("Skipping slow " + key);
                continue;
            }
            Collection<RouterAddress> addrs = ri.getAddresses();
            if (addrs.isEmpty()) {
                System.out.println("Skipping hidden " + key);
                continue;
            }
            boolean hasIntro = false;
            boolean hasIPv4 = false;
            boolean dupIP = false;
            for (RouterAddress addr : addrs) {
                if ("SSU".equals(addr.getTransportStyle()) && addr.getOption("ihost0") != null) {
                    hasIntro = true;
                    break;
                }
                String host = addr.getHost();
                if (host != null && host.contains(".")) {
                    hasIPv4 = true;
                    geoIP.add(host);
                    String old = ipMap.put(host, file.getName());
                    if (old != null && !old.equals(file.getName())) {
                        dupIP = true;
                        break;
                    }
                }
            }
            if (dupIP) {
                System.out.println("Skipping dup IP " + key);
                continue;
            }
            if (hasIntro) {
                System.out.println("Skipping introduced " + key);
                continue;
            }
            if (!hasIPv4) {
                System.out.println("Skipping IPv6-only " + key);
                continue;
            }
            File toFile = new File(toDir, file.getName());
            // We could call ri.write() to avoid simultaneous change by the router
            boolean ok = FileUtil.copy(file, toFile, true, true);
            if (ok)
                copied++;
            else
                System.out.println("Failed copy of " + file + " to " + toDir);
        } catch (IOException e) {
            System.out.println("Skipping bad " + file);
        } catch (DataFormatException e) {
            System.out.println("Skipping bad " + file);
        } finally {
            if (fis != null)
                try {
                    fis.close();
                } catch (IOException ioe) {
                }
        }
    }
    if (copied > 0) {
        // now do all the geoip lookups, and delete any bad countries
        geoIP.blockingLookup();
        for (Map.Entry<String, String> e : ipMap.entrySet()) {
            String co = geoIP.get(e.getKey());
            if (co != null) {
                if (BadCountries.contains(co)) {
                    String name = e.getValue();
                    File toFile = new File(toDir, name);
                    if (toFile.delete()) {
                        String full = geoIP.fullName(co);
                        if (full == null)
                            full = co;
                        System.out.println("Skipping " + full + ": " + name);
                        copied--;
                    }
                }
            }
        }
    }
    if (copied > 0) {
        System.out.println("Copied " + copied + " router info files to " + toDir);
    } else {
        System.out.println("Failed to copy any files to " + toDir);
        System.exit(1);
    }
}