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Fix: bpy.path.is_autoexec expanding an empty path to the CWD

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When checking if a path should be trusted, accepting an empty path
risks invalid input being incorrectly trusted.

Raise an exception if an empty path is passed in.
Callers that want to expand the CWD can pass in (path or ".").

Ref !163894
This commit is contained in:
Campbell Barton 2026-09-17 10:44:53 +10:00
parent 0603cc86ed
commit 08fc1565cd
1 changed files with 13 additions and 5 deletions
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18
source/blender/python/intern/bpy_path.cc
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@ -35,7 +35,8 @@ PyDoc_STRVAR(
" .. note:: The preference to enable automatic script execution is not checked,\n"
" see :class:`bpy.types.PreferencesFilePaths.use_scripts_auto_execute`.\n"
"\n"
" :param path: The directory to check, expected to end with a path separator.\n"
" :param path: The directory to check, expected to end with a path separator,\n"
" must not be empty.\n"
" :type path: str | bytes\n"
" :param canonicalize: Resolve the path first,\n"
" disable when it's known to be resolved.\n"
@ -73,11 +74,18 @@ static PyObject *bpy_path_is_autoexec(PyObject * /*self*/, PyObject *args, PyObj
return nullptr;
}
const bool is_autoexec = !BKE_autoexec_match_unchecked(
path_data.value, canonicalize, strip_filename);
Py_XDECREF(path_data.value_coerce);
PyObject *result = nullptr;
if (path_data.value_len == 0) [[unlikely]] {
PyErr_SetString(PyExc_ValueError, "is_autoexec: path must not be empty");
}
else {
const bool is_autoexec = !BKE_autoexec_match_unchecked(
path_data.value, canonicalize, strip_filename);
result = PyBool_FromLong(is_autoexec);
}
return PyBool_FromLong(is_autoexec);
Py_XDECREF(path_data.value_coerce);
return result;
}
static PyMethodDef _bpy_path_methods[] = {