Examples with ImmutableLargeIntegrityPacket me.retrodaredevil.solarthing.packets.security.ImmutableLargeIntegrityPacket used on opensource projects

Example 1 with ImmutableLargeIntegrityPacket

use of me.retrodaredevil.solarthing.packets.security.ImmutableLargeIntegrityPacket in project solarthing by wildmountainfarms.

the class CommandManager method makeCreator.

/**
 * @param instanceTargetPacket The {@link InstanceTargetPacket} to indicate which fragments to target or null. If null, it is not added to the packet collection
 * @param commandOpenPacket The command packet
 * @return A creator to make a packet collection. When supplied with an {@link Instant} representing now, a packet collection is created.
 */
public PacketCollectionCreator makeCreator(String sourceId, ZoneId zoneId, @Nullable InstanceTargetPacket instanceTargetPacket, CommandOpenPacket commandOpenPacket, PacketCollectionIdGenerator packetCollectionIdGenerator) {
    // instanceTargetPacket may be null
    KeyPair keyPair = getKeyPair();
    InstanceSourcePacket instanceSourcePacket = InstanceSourcePackets.create(sourceId);
    // ----
    return now -> {
        PacketCollection packetCollectionToNestAndEncrypt = PacketCollections.create(now, instanceTargetPacket == null ? Arrays.asList(commandOpenPacket, instanceSourcePacket) : Arrays.asList(commandOpenPacket, instanceSourcePacket, instanceTargetPacket), "unused document ID that does not get serialized");
        // Note, on packetCollectionToNestAndEncrypt, _id is not serialized, so the generator and zoneId used above do NOT affect anything
        final String payload;
        try {
            payload = MAPPER.writeValueAsString(packetCollectionToNestAndEncrypt);
        } catch (JsonProcessingException e) {
            throw new RuntimeException(e);
        }
        String hashString = Long.toHexString(now.toEpochMilli()) + "," + HashUtil.encodedHash(payload);
        final String encrypted;
        try {
            synchronized (CIPHER) {
                // It's possible we could be in a multi-threaded environment, and you cannot have multiple threads using a single cipher at once
                encrypted = Encrypt.encrypt(CIPHER, keyPair.getPrivate(), hashString);
            }
        } catch (InvalidKeyException | EncryptException e) {
            throw new RuntimeException(e);
        }
        List<Packet> packets = new ArrayList<>(Arrays.asList(new ImmutableLargeIntegrityPacket(sender, encrypted, payload), instanceSourcePacket));
        if (instanceTargetPacket != null) {
            packets.add(instanceTargetPacket);
        }
        return PacketCollections.createFromPackets(now, packets, packetCollectionIdGenerator, zoneId);
    };
}