first commit
This commit is contained in:
Prometheus-first
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"""版本锁定的原生桥接，只开放当前用户的文件传输助手。"""
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from __future__ import annotations
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import ctypes as c
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from ctypes import wintypes as w
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import json
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import argparse
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import hashlib
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from pathlib import Path
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import sys
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import time
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import uuid
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import pefile
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ROOT = Path(__file__).resolve().parent.parent
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DLL = ROOT / "native/build/selftest_bridge.dll"
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TEXT_DLL = ROOT / "native/build_text/text_bridge.dll"
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K = c.WinDLL("kernel32", use_last_error=True)
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PTR = c.c_void_p
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K.OpenProcess.argtypes = [w.DWORD, w.BOOL, w.DWORD]; K.OpenProcess.restype = w.HANDLE
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K.CloseHandle.argtypes = [w.HANDLE]; K.CloseHandle.restype = w.BOOL
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K.QueryFullProcessImageNameW.argtypes = [w.HANDLE, w.DWORD, w.LPWSTR, c.POINTER(w.DWORD)]
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K.CreateToolhelp32Snapshot.argtypes = [w.DWORD, w.DWORD]; K.CreateToolhelp32Snapshot.restype = w.HANDLE
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K.GetModuleHandleW.argtypes = [w.LPCWSTR]; K.GetModuleHandleW.restype = w.HMODULE
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K.GetProcAddress.argtypes = [w.HMODULE, c.c_char_p]; K.GetProcAddress.restype = PTR
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K.GetModuleHandleExW.argtypes = [w.DWORD, PTR, c.POINTER(w.HMODULE)]
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K.GetModuleFileNameW.argtypes = [w.HMODULE, w.LPWSTR, w.DWORD]
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K.VirtualAllocEx.argtypes = [w.HANDLE, PTR, c.c_size_t, w.DWORD, w.DWORD]; K.VirtualAllocEx.restype = PTR
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K.VirtualFreeEx.argtypes = [w.HANDLE, PTR, c.c_size_t, w.DWORD]
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K.WriteProcessMemory.argtypes = [w.HANDLE, PTR, PTR, c.c_size_t, c.POINTER(c.c_size_t)]
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K.ReadProcessMemory.argtypes = [w.HANDLE, PTR, PTR, c.c_size_t, c.POINTER(c.c_size_t)]
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K.CreateRemoteThread.argtypes = [w.HANDLE, PTR, c.c_size_t, PTR, PTR, w.DWORD, c.POINTER(w.DWORD)]
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K.CreateRemoteThread.restype = w.HANDLE
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K.WaitForSingleObject.argtypes = [w.HANDLE, w.DWORD]; K.WaitForSingleObject.restype = w.DWORD
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K.GetExitCodeThread.argtypes = [w.HANDLE, c.POINTER(w.DWORD)]
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class Module(c.Structure):
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_fields_ = [("dwSize", w.DWORD), ("th32ModuleID", w.DWORD), ("th32ProcessID", w.DWORD),
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("GlblcntUsage", w.DWORD), ("ProccntUsage", w.DWORD), ("modBaseAddr", PTR),
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("modBaseSize", w.DWORD), ("hModule", w.HMODULE),
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("szModule", w.WCHAR * 256), ("szExePath", w.WCHAR * 260)]
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class Config(c.Structure):
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_fields_ = [("size", w.DWORD), ("pid", w.DWORD), ("manager", c.c_uint64),
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("log_path", w.WCHAR * 260), ("text", c.c_char * 1024)]
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class TextConfig(Config):
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_fields_ = [("target", c.c_char * 128)]
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class AtTextConfig(TextConfig):
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_fields_ = [("members", c.c_char * 1024)]
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assert c.sizeof(Config) == 1560 and c.sizeof(TextConfig) == 1688 and c.sizeof(AtTextConfig) == 2712
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class ProcessEntry(c.Structure):
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_fields_ = [("dwSize", w.DWORD), ("cntUsage", w.DWORD), ("pid", w.DWORD),
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("heap", c.c_size_t), ("module", w.DWORD), ("threads", w.DWORD),
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("parent", w.DWORD), ("priority", w.LONG), ("flags", w.DWORD),
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("exe", w.WCHAR * 260)]
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K.Module32FirstW.argtypes = [w.HANDLE, c.POINTER(Module)]
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K.Module32NextW.argtypes = [w.HANDLE, c.POINTER(Module)]
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K.Process32FirstW.argtypes = [w.HANDLE, c.POINTER(ProcessEntry)]
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K.Process32NextW.argtypes = [w.HANDLE, c.POINTER(ProcessEntry)]
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def check(result, label):
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if not result:
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raise c.WinError(c.get_last_error(), f"{label} 失败")
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return result
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def modules(pid):
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snapshot = K.CreateToolhelp32Snapshot(0x8 | 0x10, pid)
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if snapshot == c.c_void_p(-1).value:
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raise c.WinError(c.get_last_error())
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result = {}
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try:
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entry = Module(); entry.dwSize = c.sizeof(entry)
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check(K.Module32FirstW(snapshot, c.byref(entry)), "读取模块")
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while True:
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result[entry.szModule.lower()] = (int(entry.modBaseAddr), entry.szExePath)
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if not K.Module32NextW(snapshot, c.byref(entry)): break
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finally:
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K.CloseHandle(snapshot)
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return result
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def remote_system_function(pid, name):
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address = check(K.GetProcAddress(K.GetModuleHandleW("kernel32.dll"), name), "查找系统函数")
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owner = w.HMODULE()
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check(K.GetModuleHandleExW(0x4 | 0x2, address, c.byref(owner)), "读取函数所属模块")
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path = c.create_unicode_buffer(32768)
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check(K.GetModuleFileNameW(owner, path, len(path)), "读取系统模块名")
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remote_base = modules(pid)[Path(path.value).name.lower()][0]
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return remote_base + address - owner.value
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def remote_call(process, address, parameter, timeout=30000):
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thread = check(K.CreateRemoteThread(process, None, 0, address, parameter, 0, None), "创建自测线程")
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try:
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status = K.WaitForSingleObject(thread, timeout)
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if status != 0:
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raise TimeoutError(f"自测线程未完成，等待结果 {status}；不要终止该线程")
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result = w.DWORD()
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check(K.GetExitCodeThread(thread, c.byref(result)), "读取自测结果")
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return result.value
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finally:
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K.CloseHandle(thread)
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def wechat_candidates():
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snapshot = K.CreateToolhelp32Snapshot(2, 0)
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if snapshot == c.c_void_p(-1).value: raise c.WinError(c.get_last_error())
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candidates = []
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try:
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entry = ProcessEntry(); entry.dwSize = c.sizeof(entry)
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check(K.Process32FirstW(snapshot, c.byref(entry)), "枚举微信进程")
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while True:
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if entry.exe.lower() == "weixin.exe":
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try:
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if "weixin.dll" in modules(entry.pid): candidates.append(entry.pid)
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except OSError:
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pass
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if not K.Process32NextW(snapshot, c.byref(entry)): break
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finally:
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K.CloseHandle(snapshot)
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return candidates
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def find_wechat():
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candidates = wechat_candidates()
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if len(candidates) != 1:
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raise RuntimeError(f"需要唯一的微信主进程，当前候选为 {candidates}；可指定 --pid")
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return candidates[0]
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def run(mode, *, pid=None, text="WXNATIVE_TEST_3", keep_loaded=False, preserve_report=True,
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bridge_path=None, target="filehelper", mentions=None):
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dll = Path(bridge_path or DLL).resolve()
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if dll not in (DLL.resolve(), TEXT_DLL.resolve()):
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raise ValueError("不支持的桥接 DLL 路径")
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generic = dll == TEXT_DLL.resolve()
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if generic and mode not in ("--dispatch", "--listen", "--remove", "--probe-at"):
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raise ValueError("通用桥接只支持文本发送、监听和卸载")
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if not generic and target != "filehelper":
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raise ValueError("旧自测桥接仅支持文件传输助手")
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if generic:
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from wxbot_framework.text import validate_target
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validate_target(target)
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if mentions is not None:
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if not generic or mode != "--dispatch":
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raise ValueError("艾特成员列表仅用于通用文本发送")
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from wxbot_framework.text import validate_mentions
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mentions = validate_mentions(target, mentions)
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if mode not in ("--arm", "--dispatch", "--receive", "--listen", "--remove", "--probe-at"):
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raise RuntimeError("不支持的原生桥接操作")
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if mode == "--probe-at" and not generic:
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raise ValueError("艾特探针仅用于通用桥接")
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if keep_loaded and mode != "--dispatch":
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raise ValueError("keep_loaded 只用于接收服务内的发送")
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if c.sizeof(PTR) != 8: raise RuntimeError("需要 64 位 Python")
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encoded = text.encode("utf-8")
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if not encoded or len(encoded) > 1023 or b"\0" in encoded:
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raise ValueError("文本应为 1–1023 个 UTF-8 字节，且不能包含 NUL")
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pid = pid or find_wechat()
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process = check(K.OpenProcess(0x43a, False, pid), "打开已验证的微信进程")
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allocations = []
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pending_thread = False
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try:
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path = c.create_unicode_buffer(32768); length = w.DWORD(len(path))
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check(K.QueryFullProcessImageNameW(process, 0, path, c.byref(length)), "核对客户端路径")
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client = Path(path.value)
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if client.name.lower() != "weixin.exe": raise RuntimeError("目标不是微信")
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version = pefile.PE(str(client)).VS_FIXEDFILEINFO[0]
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if (version.FileVersionMS, version.FileVersionLS) != (0x40001, 0xf000d):
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raise RuntimeError("客户端版本已改变")
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loaded_modules = modules(pid)
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core = loaded_modules.get("weixin.dll")
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if not core: raise RuntimeError("微信核心模块尚未加载")
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baseline = json.loads((ROOT / "native/compatibility.json").read_text(encoding="utf-8"))
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if hashlib.sha256(Path(core[1]).read_bytes()).hexdigest() != baseline["sha256"]:
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raise RuntimeError("微信核心 DLL 指纹不匹配，拒绝加载")
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other = DLL if generic else TEXT_DLL
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if mode != "--remove" and other.name.lower() in loaded_modules:
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raise RuntimeError("另一版本的桥接仍在运行，请先在旧 main.py 中输入 quit")
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pe = pefile.PE(str(dll))
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name = b"WxArmMentionProbe" if mode == "--probe-at" else {
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"--arm":b"WxArmSelfTest", "--dispatch":b"WxDispatchSelfTest", "--receive":b"WxArmReceiveTest",
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"--listen":b"WxStartFileHelperReceiver", "--remove":b"WxRemoveSelfTest"}[mode]
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if generic:
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name = {"--dispatch": b"WxSendText", "--listen": b"WxStartTextReceiver",
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"--remove": b"WxRemoveSelfTest", "--probe-at": b"WxArmMentionProbe"}[mode]
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if mentions is not None:
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name = b"WxSendAtText"
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export = next(item.address for item in pe.DIRECTORY_ENTRY_EXPORT.symbols if item.name == name)
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def allocate(data):
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pointer = check(K.VirtualAllocEx(process, None, len(data), 0x3000, 0x04), "分配自测参数")
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allocations.append(pointer)
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buffer = c.create_string_buffer(data); written = c.c_size_t()
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check(K.WriteProcessMemory(process, pointer, buffer, len(data), c.byref(written)), "写入自测参数")
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if written.value != len(data): raise RuntimeError("参数写入不完整")
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return pointer
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if mode in ("--arm", "--dispatch", "--receive", "--listen", "--probe-at"):
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existing = dll.name.lower() in loaded_modules
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if existing and not keep_loaded: raise RuntimeError("桥接 DLL 已加载，请先清理")
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if not existing:
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if keep_loaded: raise RuntimeError("接收服务的桥接 DLL 已卸载")
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dll_parameter = allocate((str(dll) + "\0").encode("utf-16-le"))
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remote_call(process, remote_system_function(pid, b"LoadLibraryW"), dll_parameter)
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loaded = modules(pid).get(dll.name.lower())
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if not loaded or Path(loaded[1]).resolve() != dll: raise RuntimeError("桥接 DLL 未正确加载")
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report_path = ROOT / f".runtime/native_requests/{uuid.uuid4().hex}.json"
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report_path.parent.mkdir(parents=True, exist_ok=True)
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if len(str(report_path)) >= 260: raise RuntimeError("报告路径超过原生接口长度")
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config = AtTextConfig() if mentions is not None else (TextConfig() if generic else Config())
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config.size, config.pid, config.manager = c.sizeof(config), pid, 0
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config.log_path, config.text = str(report_path), encoded
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if generic:
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config.target = target.encode("ascii")
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if mentions is not None:
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config.members = ",".join(mentions).encode("ascii")
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config_parameter = allocate(bytes(config))
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exit_code = remote_call(process, loaded[0] + export, config_parameter)
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if mode == "--remove" and exit_code == 0:
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remote_call(process, remote_system_function(pid, b"FreeLibrary"), loaded[0])
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# Failed initialization or a partially scheduled job must still pass
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# the DLL's cleanup guard before FreeLibrary is allowed.
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result = {"mode":mode,"pid":pid,"code":exit_code,"target":target,"report_path":str(report_path)}
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if mode == "--remove":
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result["dll_unloaded"] = dll.name.lower() not in modules(pid)
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if mode == "--dispatch":
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deadline = time.monotonic() + 15
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while exit_code == 0 and not report_path.exists() and time.monotonic() < deadline:
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time.sleep(0.05)
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if report_path.exists():
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# The completion closes the file before its callback lease is
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# released. Cleanup below waits for that lease before unload.
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for attempt in range(20):
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try:
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result["report"] = json.loads(report_path.read_text(encoding="utf-8")); break
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except (json.JSONDecodeError, PermissionError): time.sleep(0.05)
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result["report_path"] = str(report_path)
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cleanup_name = b"WxWaitForTasks" if keep_loaded else b"WxRemoveSelfTest"
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cleanup_export = next(item.address for item in pe.DIRECTORY_ENTRY_EXPORT.symbols if item.name == cleanup_name)
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cleanup_code = remote_call(process, loaded[0] + cleanup_export, None)
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result["cleanup_code"] = cleanup_code
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if cleanup_code == 0 and not keep_loaded:
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remote_call(process, remote_system_function(pid, b"FreeLibrary"), loaded[0])
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result["dll_unloaded"] = dll.name.lower() not in modules(pid)
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else:
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result["dll_unloaded"] = False
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result["success"] = (exit_code == 0 and result.get("report", {}).get("completion_success") is True
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and result["report"].get("target") == target and result["report"].get("text") == text
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and cleanup_code == 0 and (keep_loaded or result.get("dll_unloaded") is True))
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if mentions is not None:
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result["success"] = result["success"] and result["report"].get("at_members") == ",".join(mentions)
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if not preserve_report and result["success"]:
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# 长期运行只保留内存中的完成结果；删除本次已结束的临时报告。
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try:
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report_path.unlink(missing_ok=True)
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result["report_retained"] = False
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except OSError as error:
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# 临时文件被占用不应把已经成功的发送变成失败。
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result["report_retained"] = True
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result["report_cleanup_error"] = str(error)
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return result
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except TimeoutError:
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# A timed-out remote thread may still be using these buffers. Keep them
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# allocated in the client until it exits instead of freeing live input.
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pending_thread = True
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raise
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finally:
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if not pending_thread:
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for pointer in allocations: K.VirtualFreeEx(process, pointer, 0, 0x8000)
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K.CloseHandle(process)
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description="通过微信原生任务队列给文件传输助手发送文本")
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action = parser.add_mutually_exclusive_group(required=True)
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action.add_argument("--arm", action="store_true")
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action.add_argument("--dispatch", action="store_true")
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action.add_argument("--remove", action="store_true")
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action.add_argument("--receive", action="store_true")
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action.add_argument("--listen", action="store_true", help="启用文件传输助手接收队列，结束后需 --remove")
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parser.add_argument("--pid", type=int)
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parser.add_argument("--text", default="WXNATIVE_TEST_3")
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options = parser.parse_args()
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mode = "--arm" if options.arm else "--dispatch" if options.dispatch else "--receive" if options.receive else "--listen" if options.listen else "--remove"
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outcome = run(mode, pid=options.pid, text=options.text)
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print(json.dumps(outcome, ensure_ascii=False), flush=True)
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sys.exit(0 if outcome.get("success", outcome["code"] == 0) else 1)
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