OpenDroneMap-WebODM/app/security.py

25 wiersze
782 B
Python

from django.core.exceptions import SuspiciousFileOperation
from shlex import _find_unsafe
import os
def path_traversal_check(unsafe_path, known_safe_path):
known_safe_path = os.path.abspath(known_safe_path)
unsafe_path = os.path.abspath(unsafe_path)
if (os.path.commonprefix([known_safe_path, unsafe_path]) != known_safe_path):
raise SuspiciousFileOperation("{} is not safe".format(unsafe_path))
# Passes the check
return unsafe_path
def double_quote(s):
"""Return a shell-escaped version of the string *s*."""
if not s:
return '""'
if _find_unsafe(s) is None:
return s
# use double quotes, and prefix double quotes with a \
# the string $"b is then quoted as "$\"b"
return '"' + s.replace('"', '\\\"') + '"'