e223be2571
实测链路（全绿）： 1. 官方 ProGuard 映射 → SRG → SpecialSource 重映射 → client-named.jar 2. 反编译确认 MC 渲染器挂在 Minecraft 单例上，不能独立 new 3. 权威序列：tryDetectVersion → Bootstrap → RenderSystem → new Minecraft(cfg) 4. 渲 3 帧 + glReadPixels → PNG，画面是 Mojang 加载屏（真渲染，非清屏） 三个坑（实测证据）： - 漏 tryDetectVersion → Game version not set - FolderData 参数顺序错 → icons/ 404 - assetIndex 用 id(5) 而非落盘名(1.20.1) → 资源全找不到 下一步：ClientLevel 构造只需 listener.registryAccess()， ClientChunkCache.replaceWithPacketData 接收 map_chunk 原始字节 （与 chunk.py 同格式）⇒ 这就是数据喂渲染器的落点。
105 lines
4.2 KiB
Python
105 lines
4.2 KiB
Python
#!/usr/bin/env python3
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"""ProGuard mappings (Mojang官方) -> SRG (SpecialSource 可读)
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ProGuard 格式:
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net.minecraft.client.Minecraft -> enn:
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187:307:void render(...) -> a
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org.slf4j.Logger LOGGER -> c
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SRG 格式:
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CL: enn net/minecraft/client/Minecraft
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MD: enn/a (FJZ)V net/minecraft/client/Minecraft/render (FJZ)V
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FD: fjv/c net/minecraft/client/renderer/LevelRenderer/LOGGER
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"""
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import re, sys
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PRIM = {'void':'V','boolean':'Z','byte':'B','char':'C','short':'S',
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'int':'I','long':'J','float':'F','double':'D'}
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def main(pg_path, out_path):
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classes = {} # named -> obf
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class_lines = [] # (obf, named)
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members = [] # ('MD'|'FD', obfOwner, obfName, namedOwner, namedName, [namedDesc])
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cur_named = cur_obf = None
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class_re = re.compile(r'^(\S+) -> (\S+):$')
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meth_re = re.compile(r'^\s*\d+:\d+:(.*) -> (\S+)$')
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field_re = re.compile(r'^\s+(\S+)\s+(\S+) -> (\S+)$')
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with open(pg_path, encoding='utf-8') as f:
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for line in f:
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line = line.rstrip('\n')
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if not line or line.startswith('#'):
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continue
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m = class_re.match(line)
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if m:
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cur_named, cur_obf = m.group(1), m.group(2).rstrip(':')
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classes[cur_named] = cur_obf
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class_lines.append((cur_obf, cur_named))
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continue
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if cur_obf is None:
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continue
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# ★ ProGuard 的方法行「可以没有」行号前缀（如 `Foo acquire() -> a`），
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# 所以判据是「-> 左侧以 ) 结尾」而不是「行首有 N:M:」。靠行号判会漏成字段。
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m = re.match(r'^\s*(?:\d+:\d+:)?(.*?)\s+->\s+(\S+)$', line)
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if not m:
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continue
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sig, obf_name = m.group(1).strip(), m.group(2)
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if sig.endswith(')'):
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members.append(('MD', cur_obf, obf_name, cur_named, sig))
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else:
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# 字段："type name"
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parts = sig.rsplit(' ', 1)
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if len(parts) != 2:
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continue
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ftype, fname = parts[0], parts[1]
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members.append(('FD', cur_obf, obf_name, cur_named, ftype + ' ' + fname))
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def to_obf_desc(t):
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"""named 类型 -> obf JVM 描述符"""
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t = t.strip()
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if t in PRIM:
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return PRIM[t]
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if t.endswith('[]'):
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return '[' + to_obf_desc(t[:-2])
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# 内部类在 ProGuard 里用 $ 写，obf 侧也是 $ 形式（已包含在 classes 里）
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obf = classes.get(t)
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if obf is None:
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# 可能是混淆后的内部类写法差异，或非 MC 类（java/*, netty 等）-> 转 /
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return 'L' + t.replace('.', '/') + ';'
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return 'L' + obf + ';'
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def split_params(s):
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"""按顶层逗号切分（泛型里不会有逗号，ProGuard 已擦除泛型）"""
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if not s.strip():
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return []
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return [p.strip() for p in s.split(',')]
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with open(out_path, 'w', encoding='utf-8') as out:
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for obf, named in class_lines:
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out.write(f'CL: {obf} {named.replace(".", "/")}\n')
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for kind, obf_owner, obf_name, named_owner, payload in members:
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named_owner_s = named_owner.replace('.', '/')
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if kind == 'FD':
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ftype, fname = payload.split(' ', 1)
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out.write(f'FD: {obf_owner}/{obf_name} {named_owner_s}/{fname}\n')
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else:
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# payload = "retType name(args)"
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mm = re.match(r'^(.*?)\s+([\w$<>]+)\((.*)\)$', payload)
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if not mm:
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continue
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ret, name, argstr = mm.group(1), mm.group(2), mm.group(3)
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try:
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params = split_params(argstr)
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obf_desc = '(' + ''.join(to_obf_desc(p) for p in params) + ')' + to_obf_desc(ret)
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except Exception:
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continue
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out.write(f'MD: {obf_owner}/{obf_name} {obf_desc} '
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f'{named_owner_s}/{name} {obf_desc}\n')
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sys.stderr.write(f'CL={len(class_lines)} members={len(members)}\n')
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if __name__ == '__main__':
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main(sys.argv[1], sys.argv[2])
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