146 lines
5.2 KiB
Python
146 lines
5.2 KiB
Python
"""Chat adapter for the Minecraft 26.3 play protocol."""
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import re
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import time
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from contextlib import nullcontext
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from minecraft.networking.packets import Packet
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from minecraft.networking.types import (
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Float, Long, UnsignedByte, VarInt, VarLong,
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)
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from minecraft.networking.modern import (
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ChatCommand, ClientboundPlayerChatPacket, ServerboundChatPacket, SystemChat,
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)
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class UpdateTimePacket(Packet):
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"""26.3 update-time packet with registry-indexed world clocks."""
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# The 26.1 Prismarine schema defines this payload; protocol 777's 26.3
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# clientbound table places it at 0x73 (0x71 is a different short packet).
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id = 0x73
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packet_name = 'update time'
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def read(self, file_object):
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self.age = Long.read(file_object)
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self.clock_updates = []
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for _ in range(VarInt.read(file_object)):
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self.clock_updates.append({
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'clock_id': VarInt.read(file_object),
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'total_ticks': VarLong.read(file_object),
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'partial_tick': Float.read(file_object),
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'rate': Float.read(file_object),
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})
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class PlayerInputPacket(Packet):
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"""Serverbound key state, including sneak for container-safe placement."""
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id = 0x2B
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packet_name = 'player input'
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definition = [{'flags': UnsignedByte}]
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class PlayerCommandPacket(Packet):
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"""Client player-command packet; action 0 stops sleeping (protocol 777)."""
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id = 0x2A
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packet_name = 'player command'
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definition = [
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{'entity_id': VarInt}, {'action_id': VarInt}, {'jump_boost': VarInt},
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]
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class UseItemPacket(Packet):
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"""Use the selected hand, including the 26.3 interaction sequence."""
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id = 0x43
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packet_name = 'use item'
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definition = [
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{'hand': VarInt}, {'sequence': VarInt},
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{'yaw': Float}, {'pitch': Float},
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]
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class ClientCommandPacket(Packet):
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"""Client command; action 0 asks the server to respawn this player."""
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id = 0x0C
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packet_name = 'client command'
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definition = [{'action_id': VarInt}]
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def parse_incoming_private_message(message):
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"""Return (sender_name, body) for common Minecraft incoming-DM forms."""
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patterns = (
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r'^([A-Za-z0-9_]{1,16}) whispers(?: to you)?:\s*(.*)$',
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r'^([A-Za-z0-9_]{1,16})\s*->\s*me:\s*(.*)$',
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r'^From ([A-Za-z0-9_]{1,16}):\s*(.*)$',
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)
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for pattern in patterns:
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match = re.match(pattern, message, re.DOTALL)
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if match:
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return match.group(1), match.group(2)
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return None
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class ModernChatManager:
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def __init__(self, global_state):
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self.g = global_state
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self.handler = None
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self.g.connection.register_packet_listener(
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self.handle_player_chat, ClientboundPlayerChatPacket)
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def set_handler(self, callback):
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self.handler = callback
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def handle_player_chat(self, packet):
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sender = str(packet.sender)
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sender_name = self.g.get('player_names', {}).get(sender, sender)
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registry = getattr(self.g.connection, 'registry_ids', {})
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chat_types = registry.get('minecraft:chat_type', {})
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chat_type_id = getattr(packet, 'chat_type_id', None)
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chat_type = next((name for name, index in chat_types.items()
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if index == chat_type_id), None)
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is_dm = (
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getattr(packet, 'network_target_name_present', False) or
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chat_type in (
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'minecraft:msg_command_incoming',
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'minecraft:msg_command_outgoing',
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'minecraft:team_msg_command_incoming',
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'minecraft:team_msg_command_outgoing',
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)
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)
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label = '[DM] ' if is_dm else ''
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print('[chat] {}{}: {}'.format(label, sender_name, packet.message),
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flush=True)
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if self.handler:
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with self.g.get('reload_lock') or nullcontext():
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if is_dm:
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text = '{} -> me: {}'.format(sender_name, packet.message)
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self.handler(('DM', sender, text, sender_name))
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else:
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text = '{}: {}'.format(sender_name, packet.message)
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self.handler(('CHAT', sender, text))
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def handle_system_chat(self, packet, message):
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incoming = parse_incoming_private_message(message)
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if incoming:
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sender_name, body = incoming
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print('[chat] [DM] {}: {}'.format(sender_name, body), flush=True)
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if self.handler:
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text = '{} -> me: {}'.format(sender_name, body)
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with self.g.get('reload_lock') or nullcontext():
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self.handler(('DM', sender_name, text, sender_name))
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return True
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if self.handler:
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with self.g.get('reload_lock') or nullcontext():
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self.handler(('SYSTEM', None, message))
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return False
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def send(self, message):
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if not message:
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return
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if message.startswith('/'):
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self.g.connection.write_packet(
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ChatCommand(command=message[1:]), force=True)
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else:
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packet = ServerboundChatPacket(
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message=message, timestamp=int(time.time() * 1000))
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self.g.connection.write_packet(packet, force=True)
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