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Code Issues Releases Wiki Activity

Protect dynamips against bad glob

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Fix #332
This commit is contained in:
Julien Duponchelle 2015-10-07 10:25:34 +02:00
parent bfe9c117ba
commit 4232ea8a00
2 changed files with 52 additions and 6 deletions
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13
gns3server/modules/dynamips/__init__.py
View File

@ -27,13 +27,14 @@ import socket
import time
import asyncio
import tempfile
import glob
import logging
import glob
log = logging.getLogger(__name__)
from gns3server.utils.interfaces import get_windows_interfaces
from gns3server.utils.asyncio import wait_run_in_executor
from gns3server.utils.glob import glob_escape
from pkg_resources import parse_version
from uuid import UUID, uuid4
from ..base_manager import BaseManager
@ -168,11 +169,11 @@ class Dynamips(BaseManager):
yield from super().project_closed(project)
# delete useless Dynamips files
project_dir = project.module_working_path(self.module_name.lower())
files = glob.glob(os.path.join(project_dir, "*.ghost"))
files += glob.glob(os.path.join(project_dir, "*_lock"))
files += glob.glob(os.path.join(project_dir, "ilt_*"))
files += glob.glob(os.path.join(project_dir, "c[0-9][0-9][0-9][0-9]_i[0-9]*_rommon_vars"))
files += glob.glob(os.path.join(project_dir, "c[0-9][0-9][0-9][0-9]_i[0-9]*_log.txt"))
files = glob.glob(glob_escape(os.path.join(project_dir, "*.ghost")))
files += glob.glob(glob_escape(os.path.join(project_dir, "*_lock")))
files += glob.glob(glob_escape(os.path.join(project_dir, "ilt_*")))
files += glob.glob(glob_escape(os.path.join(project_dir, "c[0-9][0-9][0-9][0-9]_i[0-9]*_rommon_vars")))
files += glob.glob(glob_escape(os.path.join(project_dir, "c[0-9][0-9][0-9][0-9]_i[0-9]*_log.txt")))
for file in files:
try:
log.debug("Deleting file {}".format(file))

45
gns3server/utils/glob.py Normal file
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@ -0,0 +1,45 @@
# -*- coding: utf-8 -*-
#
# Copyright (C) 2013 GNS3 Technologies Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import sys
import re
import os
import glob
def glob_escape(pathname):
"""
Escape all special chars for glob.
For Python after 3.4 we use the glob.escape method.
:returns: Escaped path
"""
if sys.version_info < (3, 4):
# Extracted from Python 3.4 source code
# Escaping is done by wrapping any of "*?[" between square brackets.
# Metacharacters do not work in the drive part and shouldn't be escaped.
magic_check = re.compile('([*?[])')
magic_check_bytes = re.compile(b'([*?[])')
drive, pathname = os.path.splitdrive(pathname)
if isinstance(pathname, bytes):
pathname = magic_check_bytes.sub(br'[\1]', pathname)
else:
pathname = magic_check.sub(r'[\1]', pathname)
return drive + pathname
else:
return glob.escape(pathname)