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

Example 36 with DataFormatException

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

the class SessionConfig method getBytes.

private byte[] getBytes() {
    if (_destination == null)
        return null;
    if (_options == null)
        return null;
    if (_creationDate == null)
        return null;
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    try {
        // _log.debug("PubKey size for destination: " + _destination.getPublicKey().getData().length);
        // _log.debug("SigningKey size for destination: " + _destination.getSigningPublicKey().getData().length);
        _destination.writeBytes(out);
        // UTF-8
        DataHelper.writeProperties(out, _options, true);
        DataHelper.writeDate(out, _creationDate);
    } catch (IOException ioe) {
        Log log = I2PAppContext.getGlobalContext().logManager().getLog(SessionConfig.class);
        log.error("IOError signing", ioe);
        return null;
    } catch (DataFormatException dfe) {
        Log log = I2PAppContext.getGlobalContext().logManager().getLog(SessionConfig.class);
        log.error("Error writing out the bytes for signing/verification", dfe);
        return null;
    }
    return out.toByteArray();
}

Example 37 with DataFormatException

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

the class SessionConfig method signSessionConfig.

/**
 * Sign the structure using the supplied private key
 *
 * @param signingKey SigningPrivateKey to sign with
 * @throws DataFormatException
 */
public void signSessionConfig(SigningPrivateKey signingKey) throws DataFormatException {
    byte[] data = getBytes();
    if (data == null)
        throw new DataFormatException("Unable to retrieve bytes for signing");
    if (signingKey == null)
        throw new DataFormatException("No signing key");
    _signature = DSAEngine.getInstance().sign(data, signingKey);
    if (_signature == null)
        throw new DataFormatException("Signature failed with " + signingKey.getType() + " key");
}

Example 38 with DataFormatException

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

the class RouterInfo method getBytes.

/**
 * 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)
 */
protected byte[] getBytes() throws DataFormatException {
    if (_byteified != null)
        return _byteified;
    ByteArrayOutputStream out = new ByteArrayOutputStream(2 * 1024);
    try {
        writeDataBytes(out);
    } catch (IOException ioe) {
        throw new DataFormatException("IO Error getting bytes", ioe);
    }
    byte[] data = out.toByteArray();
    if (CACHE_ALL || _shouldCache)
        _byteified = data;
    return data;
}

Example 39 with DataFormatException

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

the class RouterPrivateKeyFile method getRouterIdentity.

/**
 *  Read it in from the file.
 *  Also sets the local privKey and signingPrivKey.
 */
public RouterIdentity getRouterIdentity() throws IOException, DataFormatException {
    InputStream in = null;
    try {
        in = new BufferedInputStream(new FileInputStream(this.file));
        RouterIdentity ri = new RouterIdentity();
        ri.readBytes(in);
        privKey = new PrivateKey();
        privKey.readBytes(in);
        SigType type = ri.getSigningPublicKey().getType();
        if (type == null)
            throw new DataFormatException("Unknown sig type");
        signingPrivKey = new SigningPrivateKey(type);
        signingPrivKey.readBytes(in);
        // set it a Destination, so we may call validateKeyPairs()
        // or other methods
        dest = new Destination();
        dest.setPublicKey(ri.getPublicKey());
        dest.setSigningPublicKey(ri.getSigningPublicKey());
        dest.setCertificate(ri.getCertificate());
        dest.setPadding(ri.getPadding());
        return ri;
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (IOException ioe) {
            }
        }
    }
}

Example 40 with DataFormatException

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

the class DatabaseStoreMessage method readMessage.

public void readMessage(byte[] data, int offset, int dataSize, int type) throws I2NPMessageException {
    if (type != MESSAGE_TYPE)
        throw new I2NPMessageException("Message type is incorrect for this message");
    int curIndex = offset;
    _key = Hash.create(data, curIndex);
    // Fast-fail here to save resources.
    if (_key.equals(Hash.FAKE_HASH)) {
        // createRateStat in KNDF
        _context.statManager().addRateData("netDb.DSMAllZeros", 1);
        throw new I2NPMessageException("DSM all zeros");
    }
    curIndex += Hash.HASH_LENGTH;
    // as of 0.9.18, ignore other 7 bits of the type byte, in preparation for future options
    int dbType = data[curIndex] & 0x01;
    curIndex++;
    _replyToken = DataHelper.fromLong(data, curIndex, 4);
    curIndex += 4;
    if (_replyToken > 0) {
        long tunnel = DataHelper.fromLong(data, curIndex, 4);
        if (tunnel > 0)
            _replyTunnel = new TunnelId(tunnel);
        curIndex += 4;
        _replyGateway = Hash.create(data, curIndex);
        curIndex += Hash.HASH_LENGTH;
    } else {
        _replyTunnel = null;
        _replyGateway = null;
    }
    if (dbType == DatabaseEntry.KEY_TYPE_LEASESET) {
        _dbEntry = new LeaseSet();
        try {
            _dbEntry.readBytes(new ByteArrayInputStream(data, curIndex, data.length - curIndex));
        } catch (DataFormatException dfe) {
            throw new I2NPMessageException("Error reading the leaseSet", dfe);
        } catch (IOException ioe) {
            throw new I2NPMessageException("Error reading the leaseSet", ioe);
        }
    } else {
        // dbType == DatabaseEntry.KEY_TYPE_ROUTERINFO
        _dbEntry = new RouterInfo();
        int compressedSize = (int) DataHelper.fromLong(data, curIndex, 2);
        curIndex += 2;
        if (compressedSize <= 0 || curIndex + compressedSize > data.length || curIndex + compressedSize > dataSize + offset)
            throw new I2NPMessageException("Compressed RI length: " + compressedSize + " but remaining bytes: " + Math.min(data.length - curIndex, dataSize + offset - curIndex));
        try {
            // TODO we could delay decompression, just copy to a new byte array and store in _byteCache
            // May not be necessary since the IBGW now uses UnknownI2NPMessage.
            // DSMs at the OBEP are generally garlic wrapped, so the OBEP won't see it.
            // If we do delay it, getEntry() will have to check if _dbEntry is null and _byteCache
            // is non-null, and then decompress.
            byte[] decompressed = DataHelper.decompress(data, curIndex, compressedSize);
            _dbEntry.readBytes(new ByteArrayInputStream(decompressed));
        } catch (DataFormatException dfe) {
            throw new I2NPMessageException("Error reading the routerInfo", dfe);
        } catch (IOException ioe) {
            throw new I2NPMessageException("Corrupt compressed routerInfo size = " + compressedSize, ioe);
        }
    }
// if (!key.equals(_dbEntry.getHash()))
// throw new I2NPMessageException("Hash mismatch in DSM");
}