juc500 정상동작

vendor/python-windows/Lib/site-packages/virtualenv/util/zipapp.py

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+from __future__ import annotations
+
+import logging
+import zipfile
+from pathlib import Path
+
+from virtualenv.info import ROOT
+
+LOGGER = logging.getLogger(__name__)
+
+
+def read(full_path: str | Path) -> str:
+    sub_file = _get_path_within_zip(full_path)
+    with zipfile.ZipFile(ROOT, "r") as zip_file, zip_file.open(sub_file) as file_handler:
+        return file_handler.read().decode("utf-8")
+
+
+def extract(full_path: str | Path, dest: Path) -> None:
+    LOGGER.debug("extract %s to %s", full_path, dest)
+    sub_file = _get_path_within_zip(full_path)
+    with zipfile.ZipFile(ROOT, "r") as zip_file:
+        info = zip_file.getinfo(sub_file)
+        info.filename = dest.name
+        zip_file.extract(info, str(dest.parent))
+
+
+def _get_path_within_zip(full_path: str | Path) -> str:
+    # Use Path.relative_to so symlinks and ``..`` segments cannot slip through a string ``startswith`` check. The zipapp
+    # root is a real file we own so ``resolve`` is safe; anything that does not resolve under ROOT is a bug or an
+    # attempt to escape the archive and we refuse it.
+    resolved = Path(full_path).resolve()
+    root = Path(ROOT).resolve()
+    try:
+        relative = resolved.relative_to(root)
+    except ValueError as exc:
+        msg = f"full_path={resolved} should be within ROOT={root}"
+        raise RuntimeError(msg) from exc
+    # Zip entries always use forward slashes regardless of platform.
+    return relative.as_posix()
+
+
+__all__ = [
+    "extract",
+    "read",
+]