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"""检查、修补或还原 Codex VS Code 扩展的发送锁返回值错误（仅标准库）。"""
from __future__ import annotations
import argparse
import json
import os
from pathlib import Path
import re
import shutil
import subprocess
import sys
import tempfile
BACKUP_NAME = "extension.js.before-send-lock-fix"
HANDLER_KEY = re.compile(rb'["\']queued-follow-up-send-lock-release["\']\s*:')
HANDLER = re.compile(
HANDLER_KEY.pattern
+ rb"\s*async\s*\(\s*\{[^{}]{1,300}\}\s*\)\s*=>\s*\{"
+ rb"(?P<release>\s*this\.queuedFollowUpSendLocks\.release\("
+ rb"\s*\{[^{}]{1,300}\}\s*\)\s*;?\s*)"
+ rb"(?P<returned>return\s+(?:\{[^{}]{0,200}\}|null|true|!0)\s*;?\s*)?\}"
)
def inspect_handler(content: bytes) -> tuple[re.Match[bytes], bool]:
keys = list(HANDLER_KEY.finditer(content))
if len(keys) != 1:
raise ValueError("发送锁处理函数未唯一匹配，拒绝修改此版本。")
match = HANDLER.match(content, keys[0].start())
if match is None:
raise ValueError("发送锁处理函数结构已经变化，需要重新检查此版本。")
return match, match.group("returned") is not None
def patched_content(content: bytes) -> bytes:
match, has_return = inspect_handler(content)
if has_return:
return content
position = match.end() - 1
return content[:position] + b";return {success:true}" + content[position:]
def replace_file(path: Path, content: bytes) -> None:
"""Write beside the source and replace it only after the complete write."""
temporary = None
try:
with tempfile.NamedTemporaryFile(dir=path.parent, delete=False) as stream:
temporary = Path(stream.name)
stream.write(content)
stream.flush()
os.fsync(stream.fileno())
shutil.copymode(path, temporary)
os.replace(temporary, path)
finally:
if temporary is not None:
temporary.unlink(missing_ok=True)
def process_file(path: Path, action: str, dry_run: bool = False) -> str:
content = path.read_bytes()
backup = path.with_name(BACKUP_NAME)
if action == "restore":
original = backup.read_bytes()
_, backup_has_return = inspect_handler(original)
if backup_has_return:
raise ValueError("备份不是修补前的原文件，拒绝还原。")
if content == original:
return "已经还原"
if content != patched_content(original):
raise ValueError("当前文件与此备份不属于同一次修补，拒绝覆盖。")
if dry_run:
return "将还原（未写入）"
replace_file(path, original)
return "已还原，备份保留"
_, has_return = inspect_handler(content)
if has_return:
return "已有返回值，无需修补"
if action == "check":
return "需要修补"
if backup.exists() and backup.read_bytes() != content:
raise ValueError("已有备份与当前原文件不同，拒绝覆盖备份或扩展。")
if dry_run:
return "将修补并备份（未写入）"
if not backup.exists():
with backup.open("xb") as stream:
stream.write(content)
stream.flush()
os.fsync(stream.fileno())
shutil.copystat(path, backup)
if path.read_bytes() != content:
raise ValueError("读取后扩展文件发生变化，拒绝修改；备份已保留。")
replace_file(path, patched_content(content))
return "已修补，备份：" + str(backup)
def native_roots(user_home: Path) -> list[Path]:
roots = [
user_home / name / "extensions"
for name in (
".vscode",
".vscode-insiders",
".vscode-server",
".vscode-server-insiders",
)
]
if os.environ.get("VSCODE_PORTABLE"):
roots.append(Path(os.environ["VSCODE_PORTABLE"]) / "extensions")
return roots
def is_wsl() -> bool:
if sys.platform != "linux":
return False
return (
bool(os.environ.get("WSL_DISTRO_NAME"))
or "microsoft" in os.uname().release.lower()
)
def windows_profile_from_wsl(user_home: Path) -> Path:
"""Resolve only the current Windows profile, without scanning other users."""
profile = os.environ.get("USERPROFILE")
powershell = shutil.which("powershell.exe")
if not profile and powershell:
try:
result = subprocess.run(
[
powershell,
"-NoProfile",
"-NonInteractive",
"-Command",
"[Console]::OutputEncoding = [System.Text.UTF8Encoding]::new($false); "
"[Environment]::GetFolderPath('UserProfile')",
],
capture_output=True,
timeout=8,
check=True,
)
profile = result.stdout.decode("utf-8-sig").strip()
except (OSError, subprocess.SubprocessError, UnicodeError):
pass
if profile:
if profile.startswith("/"):
return Path(profile)
try:
result = subprocess.run(
["wslpath", "-u", profile],
capture_output=True,
text=True,
timeout=5,
check=True,
)
return Path(result.stdout.strip())
except (OSError, subprocess.SubprocessError):
pass
matches = [
path
for path in Path("/mnt/c/Users").glob("*")
if path.is_dir() and path.name.casefold() == user_home.name.casefold()
]
if len(matches) == 1:
return matches[0]
raise ValueError("无法确定 Windows 用户目录，请用 --extensions-dir 指定扩展目录。")
def discover_roots(target: str, user_home: Path) -> list[Path]:
roots = native_roots(user_home) if target in ("native", "all") else []
if target in ("windows", "all"):
if sys.platform == "win32":
roots.extend(native_roots(user_home))
elif is_wsl():
profile = windows_profile_from_wsl(user_home)
roots.extend(
profile / name / "extensions"
for name in (".vscode", ".vscode-insiders")
)
elif target == "windows":
raise ValueError(
"当前不是 Windows 或 WSL，请用 --extensions-dir 指定目录。"
)
return list(dict.fromkeys(path.resolve() for path in roots))
def select_extensions(root: Path) -> list[Path]:
"""Prefer registered versions; cached older installations are not selected."""
registry = root / "extensions.json"
if registry.exists():
entries = json.loads(registry.read_text(encoding="utf-8-sig"))
if not isinstance(entries, list):
raise ValueError("extensions.json 不是扩展列表。")
selected = []
for entry in entries:
if not isinstance(entry, dict) or not isinstance(
entry.get("identifier"), dict
):
raise ValueError("extensions.json 包含无效登记项。")
if entry.get("identifier", {}).get("id", "").lower() != "openai.chatgpt":
continue
relative = entry.get("relativeLocation")
if not relative:
raise ValueError(
"登记项缺少 relativeLocation，请显式指定扩展安装目录。"
)
path = (root / relative).resolve()
if path.parent != root.resolve():
raise ValueError("登记项路径超出扩展目录，拒绝使用。")
selected.append(path)
return list(dict.fromkeys(selected))
candidates = []
for path in root.glob("openai.chatgpt-*"):
manifest = path / "package.json"
if manifest.exists():
metadata = json.loads(manifest.read_text(encoding="utf-8-sig"))
if not isinstance(metadata, dict):
raise ValueError("package.json 不是扩展信息对象。")
version = str(metadata.get("version", ""))
if re.fullmatch(r"\d+\.\d+\.\d+", version):
candidates.append((tuple(map(int, version.split("."))), path))
return [max(candidates, key=lambda item: item[0])[1]] if candidates else []
def extension_file(path: Path) -> Path:
manifest = json.loads((path / "package.json").read_text(encoding="utf-8-sig"))
if not isinstance(manifest, dict):
raise ValueError("package.json 不是扩展信息对象。")
if manifest.get("publisher") != "openai" or manifest.get("name") != "chatgpt":
raise ValueError("此目录不是 openai.chatgpt 扩展。")
return path / "out" / "extension.js"
def main() -> int:
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument(
"action", nargs="?", choices=("check", "patch", "restore"), default="check"
)
parser.add_argument(
"--target",
choices=("native", "windows", "all"),
default="native",
help="默认当前系统；WSL 中可选 windows 或 all。",
)
parser.add_argument(
"--extensions-dir",
type=Path,
action="append",
help="自定义扩展集合目录，或具体 openai.chatgpt 安装目录；可重复指定。",
)
parser.add_argument(
"--dry-run", action="store_true", help="仅显示修补或还原计划，不写入。"
)
args = parser.parse_args()
try:
roots = args.extensions_dir or discover_roots(args.target, Path.home())
installations = []
for root in roots:
root = root.expanduser().resolve()
if (root / "package.json").exists():
installations.append(root)
elif root.is_dir():
installations.extend(select_extensions(root))
installations = list(dict.fromkeys(installations))
if not installations:
raise ValueError("未找到 Codex 扩展，请用 --extensions-dir 指定目录。")
failed = False
for installation in installations:
try:
status = process_file(
extension_file(installation), args.action, args.dry_run
)
print(str(installation) + "\n " + status)
except (OSError, ValueError) as error:
print(str(installation) + "\n 失败：" + str(error), file=sys.stderr)
failed = True
if args.action != "check" and not args.dry_run and not failed:
print("等当前任务结束后，在 VS Code 中运行 Developer: Reload Window。")
return 1 if failed else 0
except (OSError, ValueError) as error:
print("失败：" + str(error), file=sys.stderr)
return 1
if __name__ == "__main__":
raise SystemExit(main())
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