Examples with RequestPacket org.spongepowered.api.network.channel.packet.RequestPacket used on opensource projects

Example 1 with RequestPacket

use of org.spongepowered.api.network.channel.packet.RequestPacket in project SpongeCommon by SpongePowered.

the class SpongePacketChannel method handleResponsePacket.

private void handleResponsePacket(final EngineConnection connection, final int transactionId, @Nullable final ChannelBuf payload, final int dynamicOpcode) {
    final TransactionStore store = ConnectionUtil.getTransactionStore(connection);
    final TransactionStore.Entry stored = store.remove(transactionId);
    if (stored == null) {
        return;
    }
    final TransactionData<RequestPacket<Packet>, Packet> transactionData = (TransactionData<RequestPacket<Packet>, Packet>) stored.getData();
    final TransactionResult result = payload == null ? TransactionResult.failure(new NoResponseException()) : TransactionResult.success(payload);
    this.handleTransactionResponse(connection, transactionData, result, dynamicOpcode);
}

Example 2 with RequestPacket

use of org.spongepowered.api.network.channel.packet.RequestPacket in project SpongeCommon by SpongePowered.

the class SpongePacketChannel method sendResponsePacketTo.

private <P extends RequestPacket<R>, R extends Packet> void sendResponsePacketTo(final EngineConnection connection, @Nullable final SpongeTransactionalPacketBinding<P, R> requestBinding, @Nullable final R packet, final int transactionId) {
    final boolean isLoginPhase = ConnectionUtil.isLoginPhase(connection);
    final EngineConnectionSide<?> side = connection.side();
    final ChannelBuf payload = this.manager().getBufferAllocator().buffer();
    final Supplier<net.minecraft.network.protocol.Packet<?>> mcPacketSupplier;
    if (packet == null || requestBinding instanceof SpongeFixedTransactionalPacketBinding) {
        final int type = packet == null ? SpongePacketChannel.TYPE_NO_RESPONSE : SpongePacketChannel.TYPE_RESPONSE;
        if (isLoginPhase) {
            if (side == EngineConnectionSide.CLIENT) {
                payload.writeVarLong(SpongePacketChannel.packTypeAndValue(type, 0));
                mcPacketSupplier = () -> PacketUtil.createLoginPayloadResponse(payload, transactionId);
            } else {
                payload.writeVarLong(SpongePacketChannel.packTypeAndValue(type, transactionId));
                mcPacketSupplier = () -> PacketUtil.createLoginPayloadRequest(this.key(), payload, Constants.Channels.LOGIN_PAYLOAD_TRANSACTION_ID);
            }
        } else {
            payload.writeVarLong(SpongePacketChannel.packTypeAndValue(type, transactionId));
            mcPacketSupplier = () -> PacketUtil.createPlayPayload(this.key(), payload, side);
        }
    } else {
        // Dynamic opcode
        final int opcode = this.requireBinding(packet.getClass()).opcode();
        if (isLoginPhase) {
            if (side == EngineConnectionSide.CLIENT) {
                payload.writeVarLong(SpongePacketChannel.packTypeAndValue(SpongePacketChannel.TYPE_DYNAMIC_RESPONSE, opcode));
                mcPacketSupplier = () -> PacketUtil.createLoginPayloadResponse(payload, transactionId);
            } else {
                payload.writeVarLong(SpongePacketChannel.packTypeAndValue(SpongePacketChannel.TYPE_DYNAMIC_RESPONSE, transactionId));
                payload.writeVarInt(opcode);
                mcPacketSupplier = () -> PacketUtil.createLoginPayloadRequest(this.key(), payload, Constants.Channels.LOGIN_PAYLOAD_TRANSACTION_ID);
            }
        } else {
            payload.writeVarLong(SpongePacketChannel.packTypeAndValue(SpongePacketChannel.TYPE_DYNAMIC_RESPONSE, transactionId));
            payload.writeVarInt(opcode);
            mcPacketSupplier = () -> PacketUtil.createPlayPayload(this.key(), payload, side);
        }
    }
    try {
        this.encodePayload(payload, packet);
    } catch (final Throwable ex) {
        this.handleException(connection, new ChannelIOException("Failed to encode request response", ex), null);
        return;
    }
    final net.minecraft.network.protocol.Packet<?> mcPacket = mcPacketSupplier.get();
    PacketSender.sendTo(connection, mcPacket);
}

Example 3 with RequestPacket

use of org.spongepowered.api.network.channel.packet.RequestPacket in project SpongeCommon by SpongePowered.

the class SpongePacketChannel method handleTransactionResponse.

@Override
protected void handleTransactionResponse(final EngineConnection connection, final Object stored, final TransactionResult result) {
    if (result.isSuccess()) {
        final ChannelBuf payload = result.getPayload();
        final long typeAndValue = payload.readVarLong();
        final int type = SpongePacketChannel.extractType(typeAndValue);
        final int value = SpongePacketChannel.extractValue(typeAndValue);
        if (type == SpongePacketChannel.TYPE_RESPONSE || type == SpongePacketChannel.TYPE_NO_RESPONSE || type == SpongePacketChannel.TYPE_DYNAMIC_RESPONSE) {
            final TransactionData<RequestPacket<Packet>, Packet> transactionData = (TransactionData<RequestPacket<Packet>, Packet>) stored;
            if (type == SpongePacketChannel.TYPE_RESPONSE) {
                this.handleTransactionResponse(connection, transactionData, result, SpongePacketChannel.NO_DYNAMIC_OPCODE);
            } else if (type == SpongePacketChannel.TYPE_NO_RESPONSE) {
                this.handleTransactionResponse(connection, transactionData, TransactionResult.failure(new NoResponseException()), SpongePacketChannel.NO_DYNAMIC_OPCODE);
            } else {
                this.handleTransactionResponse(connection, transactionData, result, value);
            }
        } else {
            this.handleException(connection, new ChannelIOException("Unknown packet type: " + type), null);
        }
    }
}

Example 4 with RequestPacket

use of org.spongepowered.api.network.channel.packet.RequestPacket in project SpongeCommon by SpongePowered.

the class SpongePacketChannel method handleRequestPacket.

private <C extends EngineConnection> void handleRequestPacket(final C connection, final int opcode, final int transactionId, final ChannelBuf payload) {
    final SpongePacketBinding<Packet> binding = this.requireBinding(opcode);
    final Packet request;
    try {
        request = this.decodePayload(binding.getPacketConstructor(), payload);
    } catch (final Throwable ex) {
        this.sendResponsePacketTo(connection, null, null, transactionId);
        this.handleException(connection, new ChannelIOException("Failed to decode request packet", ex), null);
        return;
    }
    boolean success = false;
    Throwable responseFailure = null;
    // TODO: Send cause of failure somehow?
    if (binding instanceof SpongeTransactionalPacketBinding) {
        final RequestPacketHandler<RequestPacket<Packet>, Packet, C> handler = ((SpongeTransactionalPacketBinding) binding).getRequestHandler(connection);
        if (handler != null) {
            final SpongeRequestPacketResponse<Packet> requestPacketResponse = new SpongeRequestPacketResponse<Packet>() {

                @Override
                protected void fail0(final ChannelException exception) {
                    // TODO: Use response failure?
                    SpongePacketChannel.this.sendResponsePacketTo(connection, null, null, transactionId);
                }

                @Override
                protected void success0(final Packet response) {
                    SpongePacketChannel.this.sendResponsePacketTo(connection, (SpongeTransactionalPacketBinding) binding, response, transactionId);
                }
            };
            try {
                handler.handleRequest((RequestPacket) request, connection, requestPacketResponse);
                success = true;
            } catch (final Throwable ex) {
                this.handleException(connection, new ChannelException("Failed to handle request packet", ex), null);
                responseFailure = ex;
            }
        }
    }
    if (!success) {
        // TODO: Use response failure?
        this.sendResponsePacketTo(connection, null, null, transactionId);
    }
}

Example 5 with RequestPacket

use of org.spongepowered.api.network.channel.packet.RequestPacket in project SpongeCommon by SpongePowered.

the class SpongeBasicPacketChannel method handleLoginRequestPayload.

@Override
protected void handleLoginRequestPayload(final EngineConnection connection, final int transactionId, final ChannelBuf payload) {
    // Is currently always executed on the client,
    // the server always expects a response
    final int opcode = this.readOpcode(payload);
    final SpongePacketBinding<Packet> binding = this.requireBinding(opcode);
    final Packet packet = this.decodePayload(() -> binding.getPacketConstructor().get(), payload);
    // A normal packet binding
    if (binding instanceof SpongeHandlerPacketBinding) {
        final SpongeHandlerPacketBinding<Packet> handlerBinding = (SpongeHandlerPacketBinding<Packet>) binding;
        this.handle(connection, handlerBinding, packet);
        // The server always expects a response
        PacketSender.sendTo(connection, PacketUtil.createLoginPayloadResponse(null, transactionId));
    } else {
        // A transactional packet binding
        final SpongeTransactionalPacketBinding<RequestPacket<Packet>, Packet> transactionalBinding = (SpongeTransactionalPacketBinding) binding;
        final RequestPacketHandler<Packet, Packet, EngineConnection> handler = (RequestPacketHandler<Packet, Packet, EngineConnection>) transactionalBinding.getRequestHandler(connection);
        boolean success = false;
        if (handler != null) {
            final SpongeRequestPacketResponse<Packet> response = new SpongeRequestPacketResponse<Packet>() {

                @Override
                protected void fail0(final ChannelException exception) {
                    final net.minecraft.network.protocol.Packet<?> mcPacket = PacketUtil.createLoginPayloadResponse(null, transactionId);
                    PacketSender.sendTo(connection, mcPacket);
                }

                @Override
                protected void success0(final Packet response) {
                    try {
                        final ChannelBuf responsePayload = SpongeBasicPacketChannel.this.encodeLoginPayload(transactionalBinding.opcode(), response);
                        final net.minecraft.network.protocol.Packet<?> mcPacket = PacketUtil.createLoginPayloadResponse(responsePayload, transactionId);
                        PacketSender.sendTo(connection, mcPacket);
                    } catch (final Throwable ex) {
                        SpongeBasicPacketChannel.this.handleException(connection, new ChannelIOException("Failed to encode response packet", ex), null);
                    }
                }
            };
            try {
                handler.handleRequest(packet, connection, response);
                success = true;
            } catch (final Throwable ex) {
                this.handleException(connection, new ChannelIOException("Failed to handle request packet", ex), null);
            }
        }
        if (!success) {
            final net.minecraft.network.protocol.Packet<?> mcPacket = PacketUtil.createLoginPayloadResponse(null, transactionId);
            PacketSender.sendTo(connection, mcPacket);
        }
    }
}