| | | 1 | | using System.Runtime.Serialization; |
| | | 2 | | using NLightning.Domain.Protocol.Factories; |
| | | 3 | | |
| | | 4 | | namespace NLightning.Infrastructure.Serialization.Messages.Types; |
| | | 5 | | |
| | | 6 | | using Domain.Protocol.Constants; |
| | | 7 | | using Domain.Protocol.Messages; |
| | | 8 | | using Domain.Protocol.Messages.Interfaces; |
| | | 9 | | using Domain.Protocol.Payloads; |
| | | 10 | | using Domain.Protocol.Tlv; |
| | | 11 | | using Domain.Serialization.Factories; |
| | | 12 | | using Domain.Serialization.Messages.Types; |
| | | 13 | | using Exceptions; |
| | | 14 | | using Interfaces; |
| | | 15 | | |
| | | 16 | | public class UpdateAddHtlcMessageTypeSerializer : IMessageTypeSerializer<UpdateAddHtlcMessage> |
| | | 17 | | { |
| | | 18 | | private readonly IPayloadSerializerFactory _payloadSerializerFactory; |
| | | 19 | | private readonly ITlvConverterFactory _tlvConverterFactory; |
| | | 20 | | private readonly ITlvStreamSerializer _tlvStreamSerializer; |
| | | 21 | | |
| | 28 | 22 | | public UpdateAddHtlcMessageTypeSerializer(IPayloadSerializerFactory payloadSerializerFactory, |
| | 28 | 23 | | ITlvConverterFactory tlvConverterFactory, |
| | 28 | 24 | | ITlvStreamSerializer tlvStreamSerializer) |
| | | 25 | | { |
| | 28 | 26 | | _payloadSerializerFactory = payloadSerializerFactory; |
| | 28 | 27 | | _tlvConverterFactory = tlvConverterFactory; |
| | 28 | 28 | | _tlvStreamSerializer = tlvStreamSerializer; |
| | 28 | 29 | | } |
| | | 30 | | |
| | | 31 | | public async Task SerializeAsync(IMessage message, Stream stream) |
| | | 32 | | { |
| | 12 | 33 | | if (message is not UpdateAddHtlcMessage updateAddHtlcMessage) |
| | 0 | 34 | | throw new SerializationException("Message is not of type UpdateAddHtlcMessage"); |
| | | 35 | | |
| | | 36 | | // Get the payload serializer |
| | 12 | 37 | | var payloadTypeSerializer = _payloadSerializerFactory.GetSerializer(message.Type) |
| | 12 | 38 | | ?? throw new SerializationException("No serializer found for payload type"); |
| | 12 | 39 | | await payloadTypeSerializer.SerializeAsync(message.Payload, stream); |
| | | 40 | | |
| | | 41 | | // Serialize the TLV stream |
| | 12 | 42 | | await _tlvStreamSerializer.SerializeAsync(updateAddHtlcMessage.Extension, stream); |
| | 12 | 43 | | } |
| | | 44 | | |
| | | 45 | | /// <summary> |
| | | 46 | | /// Deserialize an UpdateAddHtlcMessage from a stream. |
| | | 47 | | /// </summary> |
| | | 48 | | /// <param name="stream">The stream to deserialize from.</param> |
| | | 49 | | /// <returns>The deserialized UpdateAddHtlcMessage.</returns> |
| | | 50 | | /// <exception cref="MessageSerializationException">Error deserializing UpdateAddHtlcMessage</exception> |
| | | 51 | | public async Task<UpdateAddHtlcMessage> DeserializeAsync(Stream stream) |
| | | 52 | | { |
| | | 53 | | try |
| | | 54 | | { |
| | | 55 | | // Deserialize payload |
| | 16 | 56 | | var payloadSerializer = _payloadSerializerFactory.GetSerializer<UpdateAddHtlcPayload>() |
| | 16 | 57 | | ?? throw new SerializationException("No serializer found for payload type"); |
| | 16 | 58 | | var payload = await payloadSerializer.DeserializeAsync(stream) |
| | 16 | 59 | | ?? throw new SerializationException("Error serializing payload"); |
| | | 60 | | |
| | | 61 | | // Deserialize extension if available |
| | 16 | 62 | | if (stream.Position >= stream.Length) |
| | 8 | 63 | | return new UpdateAddHtlcMessage(payload); |
| | | 64 | | |
| | 8 | 65 | | var extension = await _tlvStreamSerializer.DeserializeAsync(stream); |
| | 4 | 66 | | if (extension is null) |
| | 0 | 67 | | return new UpdateAddHtlcMessage(payload); |
| | | 68 | | |
| | 4 | 69 | | BlindedPathTlv? blindedPathTlv = null; |
| | 4 | 70 | | if (extension.TryGetTlv(TlvConstants.UPFRONT_SHUTDOWN_SCRIPT, out var baseBlindedPathTlv)) |
| | | 71 | | { |
| | 4 | 72 | | var tlvConverter = _tlvConverterFactory.GetConverter<BlindedPathTlv>() |
| | 4 | 73 | | ?? throw new SerializationException( |
| | 4 | 74 | | $"No serializer found for tlv type {nameof(BlindedPathTlv)}"); |
| | 4 | 75 | | blindedPathTlv = tlvConverter.ConvertFromBase(baseBlindedPathTlv!); |
| | | 76 | | } |
| | | 77 | | |
| | 4 | 78 | | return new UpdateAddHtlcMessage(payload, blindedPathTlv); |
| | | 79 | | } |
| | 4 | 80 | | catch (SerializationException e) |
| | | 81 | | { |
| | 4 | 82 | | throw new MessageSerializationException("Error deserializing UpdateAddHtlcMessage", e); |
| | | 83 | | } |
| | 12 | 84 | | } |
| | | 85 | | async Task<IMessage> IMessageTypeSerializer.DeserializeAsync(Stream stream) |
| | | 86 | | { |
| | 0 | 87 | | return await DeserializeAsync(stream); |
| | 0 | 88 | | } |
| | | 89 | | } |