コード例 #1
0
ファイル: StorageLayer.java プロジェクト: jaasilva/TomP2P
  public NavigableMap<Number640, Data> removeReturnData(
      Number640 from, Number640 to, PublicKey publicKey) {
    RangeLock<Number640>.Range lock = rangeLock.lock(from, to);
    try {
      Map<Number640, Data> tmp = backend.subMap(from, to);
      NavigableMap<Number640, Data> result = new TreeMap<Number640, Data>();

      for (Number640 key : tmp.keySet()) {
        // fail fast, as soon as we want to remove 1 domain that we
        // cannot, abort
        if (!canClaimDomain(key.locationAndDomainKey(), publicKey)) {
          result.put(key, null);
        } else if (!canClaimEntry(key.locationAndDomainAndContentKey(), publicKey)) {
          result.put(key, null);
        } else {
          Data toRemove = backend.get(key);
          if (toRemove != null
              && (toRemove.publicKey() == null || toRemove.publicKey().equals(publicKey))) {
            backend.removeTimeout(key);
            Data removed = backend.remove(key, true);
            result.put(key, removed);
          }
        }
      }
      return result;
    } finally {
      lock.unlock();
    }
  }
コード例 #2
0
ファイル: Decoder.java プロジェクト: hsdrose/TomP2P
 public static void inheritPublicKey(Message message, Data data) {
   if (message.isSign()
       && message.publicKey(0) != null
       && data.hasPublicKey()
       && (data.publicKey() == null || data.publicKey() == PeerBuilder.EMPTY_PUBLIC_KEY)) {
     data.publicKey(message.publicKey(0));
   }
 }
コード例 #3
0
ファイル: StorageLayer.java プロジェクト: jaasilva/TomP2P
  public Enum<?> putConfirm(PublicKey publicKey, Number640 key, Data newData) {
    RangeLock<Number640>.Range lock = lock(key);
    try {
      if (!securityEntryCheck(
          key.locationAndDomainAndContentKey(),
          publicKey,
          newData.publicKey(),
          newData.isProtectedEntry())) {
        return PutStatus.FAILED_SECURITY;
      }

      final Data data = backend.get(key);
      if (data != null) {
        // remove prepare flag
        data.prepareFlag(false);

        data.validFromMillis(newData.validFromMillis());
        data.ttlSeconds(newData.ttlSeconds());

        long expiration = data.expirationMillis();
        // handle timeout
        backend.addTimeout(key, expiration);
        backend.put(key, data);
        // don't release data as we just update
        return PutStatus.OK;
      } else {
        return PutStatus.NOT_FOUND;
      }
    } finally {
      newData.release();
      lock.unlock();
    }
    // TODO: check for FORKS!
  }
コード例 #4
0
ファイル: StorageLayer.java プロジェクト: jaasilva/TomP2P
  public Enum<?> updateMeta(PublicKey publicKey, Number640 key, Data newData) {
    RangeLock<Number640>.Range lock = lock(key);
    try {
      if (!securityEntryCheck(
          key.locationAndDomainAndContentKey(),
          publicKey,
          newData.publicKey(),
          newData.isProtectedEntry())) {
        return PutStatus.FAILED_SECURITY;
      }

      final Data data = backend.get(key);
      boolean changed = false;
      if (data != null && newData.publicKey() != null) {
        data.publicKey(newData.publicKey());
        changed = true;
      }
      if (data != null && newData.isSigned()) {
        data.signature(newData.signature());
        changed = true;
      }
      if (data != null) {
        data.validFromMillis(newData.validFromMillis());
        data.ttlSeconds(newData.ttlSeconds());
        changed = true;
      }
      if (changed) {
        long expiration = data.expirationMillis();
        // handle timeout
        backend.addTimeout(key, expiration);
        // no release of old data, as we just update it
        backend.put(key, data);
        return PutStatus.OK;
      } else {
        return PutStatus.NOT_FOUND;
      }
    } finally {
      newData.release();
      lock.unlock();
    }
  }
コード例 #5
0
ファイル: Decoder.java プロジェクト: hsdrose/TomP2P
  public boolean decodePayload(final ByteBuf buf)
      throws NoSuchAlgorithmException, InvalidKeySpecException, InvalidKeyException {
    LOG.debug(
        "About to pass message {} to {}. Buffer to read: {}.",
        message,
        message.senderSocket(),
        buf.readableBytes());
    if (!message.hasContent()) {
      return true;
    }

    // payload comes here
    int size;
    PublicKey receivedPublicKey;
    while (contentTypes.size() > 0) {
      Content content = contentTypes.peek();
      LOG.debug("Parse content: {} in message {}", content, message);
      switch (content) {
        case INTEGER:
          if (buf.readableBytes() < Utils.INTEGER_BYTE_SIZE) {
            return false;
          }
          message.intValue(buf.readInt());
          lastContent = contentTypes.poll();
          break;
        case LONG:
          if (buf.readableBytes() < Utils.LONG_BYTE_SIZE) {
            return false;
          }
          message.longValue(buf.readLong());
          lastContent = contentTypes.poll();
          break;
        case KEY:
          if (buf.readableBytes() < Number160.BYTE_ARRAY_SIZE) {
            return false;
          }
          byte[] me = new byte[Number160.BYTE_ARRAY_SIZE];
          buf.readBytes(me);
          message.key(new Number160(me));
          lastContent = contentTypes.poll();
          break;
        case BLOOM_FILTER:
          if (buf.readableBytes() < Utils.SHORT_BYTE_SIZE) {
            return false;
          }
          size = buf.getUnsignedShort(buf.readerIndex());
          if (buf.readableBytes() < size) {
            return false;
          }
          message.bloomFilter(new SimpleBloomFilter<Number160>(buf));
          lastContent = contentTypes.poll();
          break;
        case SET_NEIGHBORS:
          if (neighborSize == -1 && buf.readableBytes() < Utils.BYTE_BYTE_SIZE) {
            return false;
          }
          if (neighborSize == -1) {
            neighborSize = buf.readUnsignedByte();
          }
          if (neighborSet == null) {
            neighborSet = new NeighborSet(-1, new ArrayList<PeerAddress>(neighborSize));
          }
          for (int i = neighborSet.size(); i < neighborSize; i++) {
            if (buf.readableBytes() < Utils.SHORT_BYTE_SIZE) {
              return false;
            }
            int header = buf.getUnsignedShort(buf.readerIndex());
            size = PeerAddress.size(header);
            if (buf.readableBytes() < size) {
              return false;
            }
            PeerAddress pa = new PeerAddress(buf);
            neighborSet.add(pa);
          }
          message.neighborsSet(neighborSet);
          lastContent = contentTypes.poll();
          neighborSize = -1;
          neighborSet = null;
          break;
        case SET_PEER_SOCKET:
          if (peerSocketAddressSize == -1 && buf.readableBytes() < Utils.BYTE_BYTE_SIZE) {
            return false;
          }
          if (peerSocketAddressSize == -1) {
            peerSocketAddressSize = buf.readUnsignedByte();
          }
          if (peerSocketAddresses == null) {
            peerSocketAddresses = new ArrayList<PeerSocketAddress>(peerSocketAddressSize);
          }
          for (int i = peerSocketAddresses.size(); i < peerSocketAddressSize; i++) {
            if (buf.readableBytes() < Utils.BYTE_BYTE_SIZE) {
              return false;
            }
            int header = buf.getUnsignedByte(buf.readerIndex());
            boolean isIPv4 = header == 0;
            size = PeerSocketAddress.size(isIPv4);
            if (buf.readableBytes() < size + Utils.BYTE_BYTE_SIZE) {
              return false;
            }
            // skip the ipv4/ipv6 header
            buf.skipBytes(1);
            peerSocketAddresses.add(PeerSocketAddress.create(buf, isIPv4));
          }
          message.peerSocketAddresses(peerSocketAddresses);
          lastContent = contentTypes.poll();
          peerSocketAddressSize = -1;
          peerSocketAddresses = null;
          break;
        case SET_KEY640:
          if (keyCollectionSize == -1 && buf.readableBytes() < Utils.INTEGER_BYTE_SIZE) {
            return false;
          }
          if (keyCollectionSize == -1) {
            keyCollectionSize = buf.readInt();
          }
          if (keyCollection == null) {
            keyCollection = new KeyCollection(new ArrayList<Number640>(keyCollectionSize));
          }
          for (int i = keyCollection.size(); i < keyCollectionSize; i++) {
            if (buf.readableBytes()
                < Number160.BYTE_ARRAY_SIZE
                    + Number160.BYTE_ARRAY_SIZE
                    + Number160.BYTE_ARRAY_SIZE
                    + Number160.BYTE_ARRAY_SIZE) {
              return false;
            }
            byte[] me2 = new byte[Number160.BYTE_ARRAY_SIZE];
            buf.readBytes(me2);
            Number160 locationKey = new Number160(me2);
            buf.readBytes(me2);
            Number160 domainKey = new Number160(me2);
            buf.readBytes(me2);
            Number160 contentKey = new Number160(me2);
            buf.readBytes(me2);
            Number160 versionKey = new Number160(me2);
            keyCollection.add(new Number640(locationKey, domainKey, contentKey, versionKey));
          }
          message.keyCollection(keyCollection);
          lastContent = contentTypes.poll();
          keyCollectionSize = -1;
          keyCollection = null;
          break;
        case MAP_KEY640_DATA:
          if (mapSize == -1 && buf.readableBytes() < Utils.INTEGER_BYTE_SIZE) {
            return false;
          }
          if (mapSize == -1) {
            mapSize = buf.readInt();
          }
          if (dataMap == null) {
            dataMap = new DataMap(new TreeMap<Number640, Data>());
          }
          if (data != null) {
            if (!data.decodeBuffer(buf)) {
              return false;
            }
            if (!data.decodeDone(buf, message.publicKey(0), signatureFactory)) {
              return false;
            }
            data = null;
            key = null;
          }
          for (int i = dataMap.size(); i < mapSize; i++) {
            if (key == null) {
              if (buf.readableBytes()
                  < Number160.BYTE_ARRAY_SIZE
                      + Number160.BYTE_ARRAY_SIZE
                      + Number160.BYTE_ARRAY_SIZE
                      + Number160.BYTE_ARRAY_SIZE) {
                return false;
              }
              byte[] me3 = new byte[Number160.BYTE_ARRAY_SIZE];
              buf.readBytes(me3);
              Number160 locationKey = new Number160(me3);
              buf.readBytes(me3);
              Number160 domainKey = new Number160(me3);
              buf.readBytes(me3);
              Number160 contentKey = new Number160(me3);
              buf.readBytes(me3);
              Number160 versionKey = new Number160(me3);
              key = new Number640(locationKey, domainKey, contentKey, versionKey);
            }
            LOG.debug("Key decoded in message {}, remaining {}", message, buf.readableBytes());
            data = Data.decodeHeader(buf, signatureFactory);
            if (data == null) {
              return false;
            }
            LOG.debug("Header decoded in message {}, remaining {}", message, buf.readableBytes());
            dataMap.dataMap().put(key, data);

            if (!data.decodeBuffer(buf)) {
              return false;
            }
            LOG.debug("Buffer decoded in message {}", message);
            if (!data.decodeDone(buf, message.publicKey(0), signatureFactory)) {
              return false;
            }
            LOG.debug("Done decoded in message {}", message);
            // if we have signed the message, set the public key anyway, but only if we indicated so
            inheritPublicKey(message, data);
            data = null;
            key = null;
          }

          message.setDataMap(dataMap);
          lastContent = contentTypes.poll();
          mapSize = -1;
          dataMap = null;
          break;
        case MAP_KEY640_KEYS:
          if (keyMap640KeysSize == -1 && buf.readableBytes() < Utils.INTEGER_BYTE_SIZE) {
            return false;
          }
          if (keyMap640KeysSize == -1) {
            keyMap640KeysSize = buf.readInt();
          }
          if (keyMap640Keys == null) {
            keyMap640Keys = new KeyMap640Keys(new TreeMap<Number640, Collection<Number160>>());
          }

          final int meta =
              Number160.BYTE_ARRAY_SIZE
                  + Number160.BYTE_ARRAY_SIZE
                  + Number160.BYTE_ARRAY_SIZE
                  + Number160.BYTE_ARRAY_SIZE;

          for (int i = keyMap640Keys.size(); i < keyMap640KeysSize; i++) {
            if (buf.readableBytes() < meta + Utils.BYTE_BYTE_SIZE) {
              return false;
            }
            size = buf.getUnsignedByte(buf.readerIndex() + meta);

            if (buf.readableBytes()
                < meta + Utils.BYTE_BYTE_SIZE + (size * Number160.BYTE_ARRAY_SIZE)) {
              return false;
            }
            byte[] me3 = new byte[Number160.BYTE_ARRAY_SIZE];
            buf.readBytes(me3);
            Number160 locationKey = new Number160(me3);
            buf.readBytes(me3);
            Number160 domainKey = new Number160(me3);
            buf.readBytes(me3);
            Number160 contentKey = new Number160(me3);
            buf.readBytes(me3);
            Number160 versionKey = new Number160(me3);

            int numBasedOn = buf.readByte();
            Set<Number160> value = new HashSet<Number160>(numBasedOn);
            for (int j = 0; j < numBasedOn; j++) {
              buf.readBytes(me3);
              Number160 basedOnKey = new Number160(me3);
              value.add(basedOnKey);
            }

            keyMap640Keys.put(new Number640(locationKey, domainKey, contentKey, versionKey), value);
          }

          message.keyMap640Keys(keyMap640Keys);
          lastContent = contentTypes.poll();
          keyMap640KeysSize = -1;
          keyMap640Keys = null;
          break;
        case MAP_KEY640_BYTE:
          if (keyMapByteSize == -1 && buf.readableBytes() < Utils.INTEGER_BYTE_SIZE) {
            return false;
          }
          if (keyMapByteSize == -1) {
            keyMapByteSize = buf.readInt();
          }
          if (keyMapByte == null) {
            keyMapByte = new KeyMapByte(new HashMap<Number640, Byte>(2 * keyMapByteSize));
          }

          for (int i = keyMapByte.size(); i < keyMapByteSize; i++) {
            if (buf.readableBytes()
                < Number160.BYTE_ARRAY_SIZE
                    + Number160.BYTE_ARRAY_SIZE
                    + Number160.BYTE_ARRAY_SIZE
                    + Number160.BYTE_ARRAY_SIZE
                    + 1) {
              return false;
            }
            byte[] me3 = new byte[Number160.BYTE_ARRAY_SIZE];
            buf.readBytes(me3);
            Number160 locationKey = new Number160(me3);
            buf.readBytes(me3);
            Number160 domainKey = new Number160(me3);
            buf.readBytes(me3);
            Number160 contentKey = new Number160(me3);
            buf.readBytes(me3);
            Number160 versionKey = new Number160(me3);
            byte value = buf.readByte();
            keyMapByte.put(new Number640(locationKey, domainKey, contentKey, versionKey), value);
          }

          message.keyMapByte(keyMapByte);
          lastContent = contentTypes.poll();
          keyMapByteSize = -1;
          keyMapByte = null;
          break;
        case BYTE_BUFFER:
          if (bufferSize == -1 && buf.readableBytes() < Utils.INTEGER_BYTE_SIZE) {
            return false;
          }
          if (bufferSize == -1) {
            bufferSize = buf.readInt();
          }
          if (buffer == null) {
            buffer = new DataBuffer();
          }

          final int remaining = bufferSize - bufferTransferred;
          bufferTransferred += buffer.transferFrom(buf, remaining);

          if (bufferTransferred < bufferSize) {
            LOG.debug(
                "Still looking for data. Indicating that its not finished yet. Already Transferred = {}, Size = {}.",
                bufferTransferred,
                bufferSize);
            return false;
          }

          message.buffer(new Buffer(buffer.toByteBuf(), bufferSize));
          lastContent = contentTypes.poll();
          bufferSize = -1;
          bufferTransferred = 0;
          buffer = null;
          break;
        case SET_TRACKER_DATA:
          if (trackerDataSize == -1 && buf.readableBytes() < Utils.BYTE_BYTE_SIZE) {
            return false;
          }
          if (trackerDataSize == -1) {
            trackerDataSize = buf.readUnsignedByte();
          }
          if (trackerData == null) {
            trackerData = new TrackerData(new HashMap<PeerAddress, Data>(2 * trackerDataSize));
          }
          if (currentTrackerData != null) {
            if (!currentTrackerData.decodeBuffer(buf)) {
              return false;
            }
            if (!currentTrackerData.decodeDone(buf, message.publicKey(0), signatureFactory)) {
              return false;
            }
            currentTrackerData = null;
          }
          for (int i = trackerData.size(); i < trackerDataSize; i++) {

            if (buf.readableBytes() < Utils.SHORT_BYTE_SIZE) {
              return false;
            }

            int header = buf.getUnsignedShort(buf.readerIndex());

            size = PeerAddress.size(header);

            if (buf.readableBytes() < size) {
              return false;
            }
            PeerAddress pa = new PeerAddress(buf);

            currentTrackerData = Data.decodeHeader(buf, signatureFactory);
            if (currentTrackerData == null) {
              return false;
            }
            trackerData.peerAddresses().put(pa, currentTrackerData);
            if (message.isSign()) {
              currentTrackerData.publicKey(message.publicKey(0));
            }

            if (!currentTrackerData.decodeBuffer(buf)) {
              return false;
            }
            if (!currentTrackerData.decodeDone(buf, message.publicKey(0), signatureFactory)) {
              return false;
            }
            currentTrackerData = null;
          }

          message.trackerData(trackerData);
          lastContent = contentTypes.poll();
          trackerDataSize = -1;
          trackerData = null;
          break;
        case PUBLIC_KEY: // fall-through
        case PUBLIC_KEY_SIGNATURE:
          receivedPublicKey = signatureFactory.decodePublicKey(buf);
          if (content == Content.PUBLIC_KEY_SIGNATURE) {
            if (receivedPublicKey == PeerBuilder.EMPTY_PUBLIC_KEY) {
              throw new InvalidKeyException("The public key cannot be empty.");
            }
          }
          if (receivedPublicKey == null) {
            return false;
          }

          message.publicKey(receivedPublicKey);
          lastContent = contentTypes.poll();
          break;
        default:
          break;
      }
    }
    LOG.debug("Parsed content in message {}", message);
    if (message.isSign()) {
      size = signatureFactory.signatureSize();
      if (buf.readableBytes() < size) {
        return false;
      }

      SignatureCodec signatureEncode = signatureFactory.signatureCodec(buf);
      message.receivedSignature(signatureEncode);
    }
    return true;
  }
コード例 #6
0
ファイル: StorageLayer.java プロジェクト: jaasilva/TomP2P
  public Map<Number640, Enum<?>> putAll(
      final NavigableMap<Number640, Data> dataMap,
      PublicKey publicKey,
      boolean putIfAbsent,
      boolean domainProtection,
      boolean sendSelf) {
    if (dataMap.isEmpty()) {
      return Collections.emptyMap();
    }
    final Number640 min = dataMap.firstKey();
    final Number640 max = dataMap.lastKey();
    final Map<Number640, Enum<?>> retVal = new HashMap<Number640, Enum<?>>();
    final HashSet<Number480> keysToCheck = new HashSet<Number480>();
    final RangeLock<Number640>.Range lock = lock(min, max);
    try {
      for (Map.Entry<Number640, Data> entry : dataMap.entrySet()) {
        Number640 key = entry.getKey();
        keysToCheck.add(key.locationAndDomainAndContentKey());
        Data newData = entry.getValue();
        if (!securityDomainCheck(
            key.locationAndDomainKey(), publicKey, publicKey, domainProtection)) {
          retVal.put(key, PutStatus.FAILED_SECURITY);
          newData.release();
          continue;
        }

        // We need this check in case we did not use the encoder/decoder,
        // which is the case if we send the message to ourself. In that
        // case, the public key of the data is never set to the message
        // publick key, if the publick key of the data was null.
        final PublicKey dataKey;
        if (sendSelf && newData.publicKey() == null) {
          dataKey = publicKey;
        } else {
          dataKey = newData.publicKey();
        }

        if (!securityEntryCheck(
            key.locationAndDomainAndContentKey(), publicKey, dataKey, newData.isProtectedEntry())) {
          retVal.put(key, PutStatus.FAILED_SECURITY);
          newData.release();
          continue;
        }

        final Data oldDataGet = backend.get(key);
        if (oldDataGet != null) {
          if (putIfAbsent) {
            retVal.put(key, PutStatus.FAILED_NOT_ABSENT);
            newData.release();
            continue;
          }

          if (oldDataGet.isDeleted()) {
            retVal.put(key, PutStatus.DELETED);
            newData.release();
            continue;
          }
          if (!oldDataGet.basedOnSet().equals(newData.basedOnSet())) {
            retVal.put(key, PutStatus.VERSION_FORK);
            newData.release();
            continue;
          }
        }

        final Data oldDataPut = backend.put(key, newData);

        long expiration = newData.expirationMillis();
        // handle timeout
        backend.addTimeout(key, expiration);

        if (newData.hasPrepareFlag()) {
          retVal.put(key, PutStatus.OK_PREPARED);
        } else {
          retVal.put(key, PutStatus.OK);
        }
        if (oldDataPut != null && oldDataPut != newData) {
          oldDataPut.release();
        }
      }

      for (Number480 key : keysToCheck) {

        // now check for forks
        Number640 minVersion = new Number640(key, Number160.ZERO);
        Number640 maxVersion = new Number640(key, Number160.MAX_VALUE);
        NavigableMap<Number640, Data> tmp = backend.subMap(minVersion, maxVersion);
        tmp = filterCopyOrig(tmp, -1, true);
        NavigableMap<Number640, Data> heads = getLatestInternalOrig(tmp);

        final boolean forked = heads.size() > 1;
        for (final Map.Entry<Number640, Data> entry : heads.entrySet()) {
          if (forked) {
            if (retVal.containsKey(entry.getKey())) {
              retVal.put(entry.getKey(), PutStatus.VERSION_FORK);
            }
          }
        }

        // now remove old versions
        if (maxVersions > 0) {
          NavigableMap<Number640, Data> versions = backend.subMap(minVersion, maxVersion);

          while (!versions.isEmpty()
              && versions.firstKey().versionKey().timestamp() + maxVersions
                  <= versions.lastKey().versionKey().timestamp()) {
            Map.Entry<Number640, Data> entry = versions.pollFirstEntry();
            Data removed = backend.remove(entry.getKey(), true);
            if (removed != null) {
              removed.release();
            }
            backend.removeTimeout(entry.getKey());
          }
        }
      }
      return retVal;

    } finally {
      lock.unlock();
    }
  }