MiniSniffer

Simple Minecraft proxy to filter and log packets.

It uses PrismarineJS/minecraft-data to parse packets in any version.

Status

This is work in progress. Here is a small todo list:

• Parse mcdata
  • basic stuff (primitives + array and container)
  • parse switch
  • parse option
  • parse buffer
  • parse particleData
  • parse bitfield
  • parse topBitSetTerminatedArray
  • map protocol version to string
• Implement minecraft protocol
  • basic data types (primitives + array and container)
  • packet structure
  • tags
  • nbt
  • command node
  • entity metadata
  • bitsetfield
  • compression
  • encryption
  • fix ignored packets for sending
• proxy traffic
  • basic logging proxy
  • filter packets
    • basic filtering
    • scripting
  • customize logging behavior per packet (to reduce spam)
    • serialize chat components using adventure to ansi?
• gui
• other ideas
  • parse packets async
• fix bugs
  • multi_block_change seems wrong

Updates:

• 12.05.2024:
  initial commit, basic logging proxy, gets stuck in config phase
  SLP: https://pastes.dev/P9Za2ysBKQ
  Join: https://pastes.dev/ZuW3GudtTF
• 12.05.2024 v2: bunch of more data types (including nbt), gets stuck sending a few packets, so we have to skip, but parses many https://pastes.dev/o4m7RvxH7Q
• 19.05.2024: fixed sending, we now spawn properly, most packets can get parsed, joining in any modern version works https://pastes.dev/XkoMh81kB6 (1.16.5 join)