git-repo/tests/test_manifest_xml.py
Mike Frysinger 04122b7261 manifest: add basic path checks for <copyfile> & <linkfile>
Reject paths in <copyfile> & <linkfile> that point outside of their
respective scopes.  This validates paths while parsing the manifest
as this should be quick & cheap: we don't access the filesystem as
this code runs before we've synced.

Bug: https://crbug.com/gerrit/11218
Change-Id: I8e17bb91f3f5b905a9d76391b29fbab4cb77aa58
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/232932
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Michael Mortensen <mmortensen@google.com>
2020-02-04 20:34:01 +00:00

84 lines
2.4 KiB
Python

# -*- coding:utf-8 -*-
#
# Copyright (C) 2019 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Unittests for the manifest_xml.py module."""
from __future__ import print_function
import unittest
import error
import manifest_xml
class ManifestValidateFilePaths(unittest.TestCase):
"""Check _ValidateFilePaths helper.
This doesn't access a real filesystem.
"""
def check_both(self, *args):
manifest_xml.XmlManifest._ValidateFilePaths('copyfile', *args)
manifest_xml.XmlManifest._ValidateFilePaths('linkfile', *args)
def test_normal_path(self):
"""Make sure good paths are accepted."""
self.check_both('foo', 'bar')
self.check_both('foo/bar', 'bar')
self.check_both('foo', 'bar/bar')
self.check_both('foo/bar', 'bar/bar')
def test_symlink_targets(self):
"""Some extra checks for symlinks."""
def check(*args):
manifest_xml.XmlManifest._ValidateFilePaths('linkfile', *args)
# We allow symlinks to end in a slash since we allow them to point to dirs
# in general. Technically the slash isn't necessary.
check('foo/', 'bar')
def test_bad_paths(self):
"""Make sure bad paths (src & dest) are rejected."""
PATHS = (
'..',
'../',
'./',
'foo/',
'./foo',
'../foo',
'foo/./bar',
'foo/../../bar',
'/foo',
'./../foo',
'.git/foo',
# Check case folding.
'.GIT/foo',
'blah/.git/foo',
'.repo/foo',
'.repoconfig',
# Block ~ due to 8.3 filenames on Windows filesystems.
'~',
'foo~',
'blah/foo~',
# Block Unicode characters that get normalized out by filesystems.
u'foo\u200Cbar',
)
for path in PATHS:
self.assertRaises(
error.ManifestInvalidPathError, self.check_both, path, 'a')
self.assertRaises(
error.ManifestInvalidPathError, self.check_both, 'a', path)