224 lines
6.4 KiB
Python
224 lines
6.4 KiB
Python
#!/usr/bin/env python
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import os
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import json
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import keyword
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import logging
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from pathlib import Path
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from typing import List, Dict, Union
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from aiocraft.mc.mctypes import *
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DIR_MAP = {"toClient": "clientbound", "toServer": "serverbound"}
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PREFACE = """\"\"\"[!] This file is autogenerated\"\"\"\n\n"""
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IMPORTS = """from typing import Tuple, Dict
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from ....packet import Packet
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from ....mctypes import *\n"""
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IMPORT_ALL = """__all__ = [\n\t{all}\n]\n"""
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OBJECT = """
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class {name}(Packet):
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{fields}
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_ids : Dict[int, int] = {ids}
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_slots : Dict[int, Tuple[Tuple[str, Type]]] = {slots}
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"""
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TYPE_MAP = {
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"varint": VarInt,
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"u8": UnsignedShort,
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"u16": UnsignedInt,
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"u32": UnsignedLong,
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"i16": Short,
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"i32": Int,
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"i64": Long,
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"f32": Float,
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"f64": Double,
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"bool": Boolean,
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"UUID": UUID,
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"string": String,
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"nbt": NBTTag,
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"slot": Slot,
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"position": Position,
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"entityMetadataItem": EntityMetadataItem,
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"entityMetadata": EntityMetadata,
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}
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def mctype(name:str) -> Type:
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if not isinstance(name, str):
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return String # should return TrailingByteArray but still haven't implemented it (:
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if name in TYPE_MAP:
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return TYPE_MAP[name]
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return String # should return TrailingByteArray but still haven't implemented it (:
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def snake_to_camel(name:str) -> str:
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return "".join(x.capitalize() for x in name.split("_"))
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def parse_slot(slot: dict) -> str:
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name = slot["name"] if "name" in slot else "anon"
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if keyword.iskeyword(name):
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name = "is_" + name
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t = mctype(slot["type"] if "type" in slot else "restBuffer")
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return f"(\"{name}\", {t.__name__})"
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def parse_field(slot: dict) -> str:
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name = slot["name"] if "name" in slot else "anon"
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if keyword.iskeyword(name):
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name = "is_" + name
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t = mctype(slot["type"] if "type" in slot else "restBuffer")
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return f"{name} : {t._pytype.__name__}"
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class PacketClassWriter:
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title : str
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ids : str
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slots : str
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fields: str
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def __init__(self, title:str, ids:str, slots:str, fields:str):
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self.title = title
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self.ids = ids
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self.slots = slots
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self.fields = fields
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def compile(self) -> str:
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return PREFACE + \
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IMPORTS + \
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OBJECT.format(
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name=self.title,
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ids=self.ids,
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slots=self.slots,
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fields=self.fields,
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)
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def _make_module(path:Path, contents:dict):
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os.mkdir(path)
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imports = ""
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for key in contents:
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imports += f"from .{key} import {contents[key]}\n"
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with open(path / "__init__.py", "w") as f:
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f.write(PREFACE + imports)
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def compile():
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import shutil
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import zipfile
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from urllib.request import urlretrieve
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base_path = Path(os.getcwd())
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mc_path = base_path / 'aiocraft' / 'mc'
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# Retrieve proto definitions from PrismarineJS/minecraft-data
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urlretrieve("https://github.com/PrismarineJS/minecraft-data/zipball/master", mc_path / "minecraft-data.zip")
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with zipfile.ZipFile(mc_path / 'minecraft-data.zip', 'r') as f:
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f.extractall(mc_path)
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# First folder starting with PrismarineJS
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folder_name = next(folder for folder in os.listdir(mc_path) if folder.startswith("PrismarineJS"))
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shutil.rmtree(mc_path / 'proto')
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PACKETS = {
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"handshaking": {
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"clientbound": {},
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"serverbound": {},
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},
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"status": {
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"clientbound": {},
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"serverbound": {},
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},
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"login": {
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"clientbound": {},
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"serverbound": {},
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},
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"play": {
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"clientbound": {},
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"serverbound": {},
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}
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}
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# TODO load all versions!
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all_versions = os.listdir(mc_path / f'{folder_name}/data/pc/')
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all_versions.remove("common")
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# _make_module(mc_path / 'proto', { f"v{v.replace('.', '_').replace('-', '_')}":"*" for v in all_versions })
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for v in all_versions:
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if v == "0.30c":
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continue # Proto just too antique!
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if not os.path.isfile(mc_path / f'{folder_name}/data/pc/{v}/protocol.json') \
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or not os.path.isfile(mc_path / f'{folder_name}/data/pc/{v}/version.json'):
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continue
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with open(mc_path / f'{folder_name}/data/pc/{v}/version.json') as f:
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proto_version = json.load(f)['version']
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with open(mc_path / f'{folder_name}/data/pc/{v}/protocol.json') as f:
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data = json.load(f)
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for state in ("handshaking", "status", "login", "play"):
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for _direction in ("toClient", "toServer"):
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direction = DIR_MAP[_direction]
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try:
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buf = data[state][_direction]["types"]["packet"][1][0]["type"][1]["mappings"]
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except KeyError:
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logging.exception("Exception building %s|%s|%s definitions", v, state, direction)
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print("Exception building %s|%s|%s definitions" % (v, state, direction))
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# _make_module(mc_path / f"proto/{version}/{state}/{direction}", {})
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continue
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registry = { f"packet_{value}" : int(key, 16) for (key, value) in buf.items() }
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for p_name in data[state][_direction]["types"].keys():
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if p_name == "packet":
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continue # it's the registry entry
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if p_name not in registry:
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logging.warning("Trying to make definitions for packet '%s'", p_name)
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continue # wtf!
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packet = data[state][_direction]["types"][p_name]
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pid = registry[p_name]
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class_name = snake_to_camel(p_name)
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if p_name not in PACKETS[state][direction]:
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PACKETS[state][direction][p_name] = {
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"name" : class_name,
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"definitions" : {},
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}
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PACKETS[state][direction][p_name]["definitions"][proto_version] = {
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"id": pid,
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"slots" : packet[1],
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}
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with open("/home/dev/HELP.json", "w") as f:
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json.dump(PACKETS, f, indent=2)
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_make_module(mc_path / 'proto', { k:"*" for k in PACKETS.keys() })
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for state in PACKETS.keys():
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_make_module(mc_path / f"proto/{state}", { k:"*" for k in PACKETS[state].keys() })
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for direction in PACKETS[state].keys():
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_make_module(mc_path / f"proto/{state}/{direction}", { k:snake_to_camel(k) for k in PACKETS[state][direction].keys() })
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for packet in PACKETS[state][direction].keys():
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pkt = PACKETS[state][direction][packet]
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slots = []
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fields = set()
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ids = []
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for v in sorted(PACKETS[state][direction][packet]["definitions"].keys()):
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defn = pkt["definitions"][v]
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ids.append(f"{v} : 0x{defn['id']:02X}")
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v_slots = []
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v_fields = []
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for slot in defn["slots"]:
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with open("/home/dev/SLOTS", "a") as f:
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f.write(str(slot) + "\n")
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v_slots.append(parse_slot(slot))
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fields.add(parse_field(slot))
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slots.append(f"{v} : ( {','.join(v_slots)} ),")
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with open(mc_path / f"proto/{state}/{direction}/{packet}.py", "w") as f:
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f.write(
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PacketClassWriter(
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pkt["name"],
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'{\n\t\t' + ',\n\t\t'.join(ids) + '\n\t}\n',
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'{\n\t\t' + '\n\t\t'.join(slots) + '\n\t}\n',
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'\n\t'.join(fields),
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).compile()
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)
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