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synapse-product/tests/rest/media/v1/test_filepath.py
Dirk Klimpel 7e91107be1
Add type hints to tests/rest (#12146) 
* Add type hints to `tests/rest`

* newsfile

* change import from `SigningKey`
2022-03-03 16:05:44 +00:00

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# Copyright 2021 The Matrix.org Foundation C.I.C.
#
# 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.
import inspect
import os
from typing import Iterable
from synapse.rest.media.v1.filepath import MediaFilePaths, _wrap_with_jail_check
from tests import unittest
class MediaFilePathsTestCase(unittest.TestCase):
def setUp(self) -> None:
super().setUp()
self.filepaths = MediaFilePaths("/media_store")
def test_local_media_filepath(self) -> None:
"""Test local media paths"""
self.assertEqual(
self.filepaths.local_media_filepath_rel("GerZNDnDZVjsOtardLuwfIBg"),
"local_content/Ge/rZ/NDnDZVjsOtardLuwfIBg",
)
self.assertEqual(
self.filepaths.local_media_filepath("GerZNDnDZVjsOtardLuwfIBg"),
"/media_store/local_content/Ge/rZ/NDnDZVjsOtardLuwfIBg",
)
def test_local_media_thumbnail(self) -> None:
"""Test local media thumbnail paths"""
self.assertEqual(
self.filepaths.local_media_thumbnail_rel(
"GerZNDnDZVjsOtardLuwfIBg", 800, 600, "image/jpeg", "scale"
),
"local_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg-scale",
)
self.assertEqual(
self.filepaths.local_media_thumbnail(
"GerZNDnDZVjsOtardLuwfIBg", 800, 600, "image/jpeg", "scale"
),
"/media_store/local_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg-scale",
)
def test_local_media_thumbnail_dir(self) -> None:
"""Test local media thumbnail directory paths"""
self.assertEqual(
self.filepaths.local_media_thumbnail_dir("GerZNDnDZVjsOtardLuwfIBg"),
"/media_store/local_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg",
)
def test_remote_media_filepath(self) -> None:
"""Test remote media paths"""
self.assertEqual(
self.filepaths.remote_media_filepath_rel(
"example.com", "GerZNDnDZVjsOtardLuwfIBg"
),
"remote_content/example.com/Ge/rZ/NDnDZVjsOtardLuwfIBg",
)
self.assertEqual(
self.filepaths.remote_media_filepath(
"example.com", "GerZNDnDZVjsOtardLuwfIBg"
),
"/media_store/remote_content/example.com/Ge/rZ/NDnDZVjsOtardLuwfIBg",
)
def test_remote_media_thumbnail(self) -> None:
"""Test remote media thumbnail paths"""
self.assertEqual(
self.filepaths.remote_media_thumbnail_rel(
"example.com",
"GerZNDnDZVjsOtardLuwfIBg",
800,
600,
"image/jpeg",
"scale",
),
"remote_thumbnail/example.com/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg-scale",
)
self.assertEqual(
self.filepaths.remote_media_thumbnail(
"example.com",
"GerZNDnDZVjsOtardLuwfIBg",
800,
600,
"image/jpeg",
"scale",
),
"/media_store/remote_thumbnail/example.com/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg-scale",
)
def test_remote_media_thumbnail_legacy(self) -> None:
"""Test old-style remote media thumbnail paths"""
self.assertEqual(
self.filepaths.remote_media_thumbnail_rel_legacy(
"example.com", "GerZNDnDZVjsOtardLuwfIBg", 800, 600, "image/jpeg"
),
"remote_thumbnail/example.com/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg",
)
def test_remote_media_thumbnail_dir(self) -> None:
"""Test remote media thumbnail directory paths"""
self.assertEqual(
self.filepaths.remote_media_thumbnail_dir(
"example.com", "GerZNDnDZVjsOtardLuwfIBg"
),
"/media_store/remote_thumbnail/example.com/Ge/rZ/NDnDZVjsOtardLuwfIBg",
)
def test_url_cache_filepath(self) -> None:
"""Test URL cache paths"""
self.assertEqual(
self.filepaths.url_cache_filepath_rel("2020-01-02_GerZNDnDZVjsOtar"),
"url_cache/2020-01-02/GerZNDnDZVjsOtar",
)
self.assertEqual(
self.filepaths.url_cache_filepath("2020-01-02_GerZNDnDZVjsOtar"),
"/media_store/url_cache/2020-01-02/GerZNDnDZVjsOtar",
)
def test_url_cache_filepath_legacy(self) -> None:
"""Test old-style URL cache paths"""
self.assertEqual(
self.filepaths.url_cache_filepath_rel("GerZNDnDZVjsOtardLuwfIBg"),
"url_cache/Ge/rZ/NDnDZVjsOtardLuwfIBg",
)
self.assertEqual(
self.filepaths.url_cache_filepath("GerZNDnDZVjsOtardLuwfIBg"),
"/media_store/url_cache/Ge/rZ/NDnDZVjsOtardLuwfIBg",
)
def test_url_cache_filepath_dirs_to_delete(self) -> None:
"""Test URL cache cleanup paths"""
self.assertEqual(
self.filepaths.url_cache_filepath_dirs_to_delete(
"2020-01-02_GerZNDnDZVjsOtar"
),
["/media_store/url_cache/2020-01-02"],
)
def test_url_cache_filepath_dirs_to_delete_legacy(self) -> None:
"""Test old-style URL cache cleanup paths"""
self.assertEqual(
self.filepaths.url_cache_filepath_dirs_to_delete(
"GerZNDnDZVjsOtardLuwfIBg"
),
[
"/media_store/url_cache/Ge/rZ",
"/media_store/url_cache/Ge",
],
)
def test_url_cache_thumbnail(self) -> None:
"""Test URL cache thumbnail paths"""
self.assertEqual(
self.filepaths.url_cache_thumbnail_rel(
"2020-01-02_GerZNDnDZVjsOtar", 800, 600, "image/jpeg", "scale"
),
"url_cache_thumbnails/2020-01-02/GerZNDnDZVjsOtar/800-600-image-jpeg-scale",
)
self.assertEqual(
self.filepaths.url_cache_thumbnail(
"2020-01-02_GerZNDnDZVjsOtar", 800, 600, "image/jpeg", "scale"
),
"/media_store/url_cache_thumbnails/2020-01-02/GerZNDnDZVjsOtar/800-600-image-jpeg-scale",
)
def test_url_cache_thumbnail_legacy(self) -> None:
"""Test old-style URL cache thumbnail paths"""
self.assertEqual(
self.filepaths.url_cache_thumbnail_rel(
"GerZNDnDZVjsOtardLuwfIBg", 800, 600, "image/jpeg", "scale"
),
"url_cache_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg-scale",
)
self.assertEqual(
self.filepaths.url_cache_thumbnail(
"GerZNDnDZVjsOtardLuwfIBg", 800, 600, "image/jpeg", "scale"
),
"/media_store/url_cache_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg-scale",
)
def test_url_cache_thumbnail_directory(self) -> None:
"""Test URL cache thumbnail directory paths"""
self.assertEqual(
self.filepaths.url_cache_thumbnail_directory_rel(
"2020-01-02_GerZNDnDZVjsOtar"
),
"url_cache_thumbnails/2020-01-02/GerZNDnDZVjsOtar",
)
self.assertEqual(
self.filepaths.url_cache_thumbnail_directory("2020-01-02_GerZNDnDZVjsOtar"),
"/media_store/url_cache_thumbnails/2020-01-02/GerZNDnDZVjsOtar",
)
def test_url_cache_thumbnail_directory_legacy(self) -> None:
"""Test old-style URL cache thumbnail directory paths"""
self.assertEqual(
self.filepaths.url_cache_thumbnail_directory_rel(
"GerZNDnDZVjsOtardLuwfIBg"
),
"url_cache_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg",
)
self.assertEqual(
self.filepaths.url_cache_thumbnail_directory("GerZNDnDZVjsOtardLuwfIBg"),
"/media_store/url_cache_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg",
)
def test_url_cache_thumbnail_dirs_to_delete(self) -> None:
"""Test URL cache thumbnail cleanup paths"""
self.assertEqual(
self.filepaths.url_cache_thumbnail_dirs_to_delete(
"2020-01-02_GerZNDnDZVjsOtar"
),
[
"/media_store/url_cache_thumbnails/2020-01-02/GerZNDnDZVjsOtar",
"/media_store/url_cache_thumbnails/2020-01-02",
],
)
def test_url_cache_thumbnail_dirs_to_delete_legacy(self) -> None:
"""Test old-style URL cache thumbnail cleanup paths"""
self.assertEqual(
self.filepaths.url_cache_thumbnail_dirs_to_delete(
"GerZNDnDZVjsOtardLuwfIBg"
),
[
"/media_store/url_cache_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg",
"/media_store/url_cache_thumbnails/Ge/rZ",
"/media_store/url_cache_thumbnails/Ge",
],
)
def test_server_name_validation(self) -> None:
"""Test validation of server names"""
self._test_path_validation(
[
"remote_media_filepath_rel",
"remote_media_filepath",
"remote_media_thumbnail_rel",
"remote_media_thumbnail",
"remote_media_thumbnail_rel_legacy",
"remote_media_thumbnail_dir",
],
parameter="server_name",
valid_values=[
"matrix.org",
"matrix.org:8448",
"matrix-federation.matrix.org",
"matrix-federation.matrix.org:8448",
"10.1.12.123",
"10.1.12.123:8448",
"[fd00:abcd::ffff]",
"[fd00:abcd::ffff]:8448",
],
invalid_values=[
"/matrix.org",
"matrix.org/..",
"matrix.org\x00",
"",
".",
"..",
"/",
],
)
def test_file_id_validation(self) -> None:
"""Test validation of local, remote and legacy URL cache file / media IDs"""
# File / media IDs get split into three parts to form paths, consisting of the
# first two characters, next two characters and rest of the ID.
valid_file_ids = [
"GerZNDnDZVjsOtardLuwfIBg",
# Unexpected, but produces an acceptable path:
"GerZN", # "N" becomes the last directory
]
invalid_file_ids = [
"/erZNDnDZVjsOtardLuwfIBg",
"Ge/ZNDnDZVjsOtardLuwfIBg",
"GerZ/DnDZVjsOtardLuwfIBg",
"GerZ/..",
"G\x00rZNDnDZVjsOtardLuwfIBg",
"Ger\x00NDnDZVjsOtardLuwfIBg",
"GerZNDnDZVjsOtardLuwfIBg\x00",
"",
"Ge",
"GerZ",
"GerZ.",
"..rZNDnDZVjsOtardLuwfIBg",
"Ge..NDnDZVjsOtardLuwfIBg",
"GerZ..",
"GerZ/",
]
self._test_path_validation(
[
"local_media_filepath_rel",
"local_media_filepath",
"local_media_thumbnail_rel",
"local_media_thumbnail",
"local_media_thumbnail_dir",
# Legacy URL cache media IDs
"url_cache_filepath_rel",
"url_cache_filepath",
# `url_cache_filepath_dirs_to_delete` is tested below.
"url_cache_thumbnail_rel",
"url_cache_thumbnail",
"url_cache_thumbnail_directory_rel",
"url_cache_thumbnail_directory",
"url_cache_thumbnail_dirs_to_delete",
],
parameter="media_id",
valid_values=valid_file_ids,
invalid_values=invalid_file_ids,
)
# `url_cache_filepath_dirs_to_delete` ignores what would be the last path
# component, so only the first 4 characters matter.
self._test_path_validation(
[
"url_cache_filepath_dirs_to_delete",
],
parameter="media_id",
valid_values=valid_file_ids,
invalid_values=[
"/erZNDnDZVjsOtardLuwfIBg",
"Ge/ZNDnDZVjsOtardLuwfIBg",
"G\x00rZNDnDZVjsOtardLuwfIBg",
"Ger\x00NDnDZVjsOtardLuwfIBg",
"",
"Ge",
"..rZNDnDZVjsOtardLuwfIBg",
"Ge..NDnDZVjsOtardLuwfIBg",
],
)
self._test_path_validation(
[
"remote_media_filepath_rel",
"remote_media_filepath",
"remote_media_thumbnail_rel",
"remote_media_thumbnail",
"remote_media_thumbnail_rel_legacy",
"remote_media_thumbnail_dir",
],
parameter="file_id",
valid_values=valid_file_ids,
invalid_values=invalid_file_ids,
)
def test_url_cache_media_id_validation(self) -> None:
"""Test validation of URL cache media IDs"""
self._test_path_validation(
[
"url_cache_filepath_rel",
"url_cache_filepath",
# `url_cache_filepath_dirs_to_delete` only cares about the date prefix
"url_cache_thumbnail_rel",
"url_cache_thumbnail",
"url_cache_thumbnail_directory_rel",
"url_cache_thumbnail_directory",
"url_cache_thumbnail_dirs_to_delete",
],
parameter="media_id",
valid_values=[
"2020-01-02_GerZNDnDZVjsOtar",
"2020-01-02_G", # Unexpected, but produces an acceptable path
],
invalid_values=[
"2020-01-02",
"2020-01-02-",
"2020-01-02-.",
"2020-01-02-..",
"2020-01-02-/",
"2020-01-02-/GerZNDnDZVjsOtar",
"2020-01-02-GerZNDnDZVjsOtar/..",
"2020-01-02-GerZNDnDZVjsOtar\x00",
],
)
def test_content_type_validation(self) -> None:
"""Test validation of thumbnail content types"""
self._test_path_validation(
[
"local_media_thumbnail_rel",
"local_media_thumbnail",
"remote_media_thumbnail_rel",
"remote_media_thumbnail",
"remote_media_thumbnail_rel_legacy",
"url_cache_thumbnail_rel",
"url_cache_thumbnail",
],
parameter="content_type",
valid_values=[
"image/jpeg",
],
invalid_values=[
"", # ValueError: not enough values to unpack
"image/jpeg/abc", # ValueError: too many values to unpack
"image/jpeg\x00",
],
)
def test_thumbnail_method_validation(self) -> None:
"""Test validation of thumbnail methods"""
self._test_path_validation(
[
"local_media_thumbnail_rel",
"local_media_thumbnail",
"remote_media_thumbnail_rel",
"remote_media_thumbnail",
"url_cache_thumbnail_rel",
"url_cache_thumbnail",
],
parameter="method",
valid_values=[
"crop",
"scale",
],
invalid_values=[
"/scale",
"scale/..",
"scale\x00",
"/",
],
)
def _test_path_validation(
self,
methods: Iterable[str],
parameter: str,
valid_values: Iterable[str],
invalid_values: Iterable[str],
) -> None:
"""Test that the specified methods validate the named parameter as expected
Args:
methods: The names of `MediaFilePaths` methods to test
parameter: The name of the parameter to test
valid_values: A list of parameter values that are expected to be accepted
invalid_values: A list of parameter values that are expected to be rejected
Raises:
AssertionError: If a value was accepted when it should have failed
validation.
ValueError: If a value failed validation when it should have been accepted.
"""
for method in methods:
get_path = getattr(self.filepaths, method)
parameters = inspect.signature(get_path).parameters
kwargs = {
"server_name": "matrix.org",
"media_id": "GerZNDnDZVjsOtardLuwfIBg",
"file_id": "GerZNDnDZVjsOtardLuwfIBg",
"width": 800,
"height": 600,
"content_type": "image/jpeg",
"method": "scale",
}
if get_path.__name__.startswith("url_"):
kwargs["media_id"] = "2020-01-02_GerZNDnDZVjsOtar"
kwargs = {k: v for k, v in kwargs.items() if k in parameters}
kwargs.pop(parameter)
for value in valid_values:
kwargs[parameter] = value
get_path(**kwargs)
# No exception should be raised
for value in invalid_values:
with self.assertRaises(ValueError):
kwargs[parameter] = value
path_or_list = get_path(**kwargs)
self.fail(
f"{value!r} unexpectedly passed validation: "
f"{method} returned {path_or_list!r}"
)
class MediaFilePathsJailTestCase(unittest.TestCase):
def _check_relative_path(self, filepaths: MediaFilePaths, path: str) -> None:
"""Passes a relative path through the jail check.
Args:
filepaths: The `MediaFilePaths` instance.
path: A path relative to the media store directory.
Raises:
ValueError: If the jail check fails.
"""
@_wrap_with_jail_check(relative=True)
def _make_relative_path(self: MediaFilePaths, path: str) -> str:
return path
_make_relative_path(filepaths, path)
def _check_absolute_path(self, filepaths: MediaFilePaths, path: str) -> None:
"""Passes an absolute path through the jail check.
Args:
filepaths: The `MediaFilePaths` instance.
path: A path relative to the media store directory.
Raises:
ValueError: If the jail check fails.
"""
@_wrap_with_jail_check(relative=False)
def _make_absolute_path(self: MediaFilePaths, path: str) -> str:
return os.path.join(self.base_path, path)
_make_absolute_path(filepaths, path)
def test_traversal_inside(self) -> None:
"""Test the jail check for paths that stay within the media directory."""
# Despite the `../`s, these paths still lie within the media directory and it's
# expected for the jail check to allow them through.
# These paths ought to trip the other checks in place and should never be
# returned.
filepaths = MediaFilePaths("/media_store")
path = "url_cache/2020-01-02/../../GerZNDnDZVjsOtar"
self._check_relative_path(filepaths, path)
self._check_absolute_path(filepaths, path)
def test_traversal_outside(self) -> None:
"""Test that the jail check fails for paths that escape the media directory."""
filepaths = MediaFilePaths("/media_store")
path = "url_cache/2020-01-02/../../../GerZNDnDZVjsOtar"
with self.assertRaises(ValueError):
self._check_relative_path(filepaths, path)
with self.assertRaises(ValueError):
self._check_absolute_path(filepaths, path)
def test_traversal_reentry(self) -> None:
"""Test the jail check for paths that exit and re-enter the media directory."""
# These paths lie outside the media directory if it is a symlink, and inside
# otherwise. Ideally the check should fail, but this proves difficult.
# This test documents the behaviour for this edge case.
# These paths ought to trip the other checks in place and should never be
# returned.
filepaths = MediaFilePaths("/media_store")
path = "url_cache/2020-01-02/../../../media_store/GerZNDnDZVjsOtar"
self._check_relative_path(filepaths, path)
self._check_absolute_path(filepaths, path)
def test_symlink(self) -> None:
"""Test that a symlink does not cause the jail check to fail."""
media_store_path = self.mktemp()
# symlink the media store directory
os.symlink("/mnt/synapse/media_store", media_store_path)
# Test that relative and absolute paths don't trip the check
# NB: `media_store_path` is a relative path
filepaths = MediaFilePaths(media_store_path)
self._check_relative_path(filepaths, "url_cache/2020-01-02/GerZNDnDZVjsOtar")
self._check_absolute_path(filepaths, "url_cache/2020-01-02/GerZNDnDZVjsOtar")
filepaths = MediaFilePaths(os.path.abspath(media_store_path))
self._check_relative_path(filepaths, "url_cache/2020-01-02/GerZNDnDZVjsOtar")
self._check_absolute_path(filepaths, "url_cache/2020-01-02/GerZNDnDZVjsOtar")
def test_symlink_subdirectory(self) -> None:
"""Test that a symlinked subdirectory does not cause the jail check to fail."""
media_store_path = self.mktemp()
os.mkdir(media_store_path)
# symlink `url_cache/`
os.symlink(
"/mnt/synapse/media_store_url_cache",
os.path.join(media_store_path, "url_cache"),
)
# Test that relative and absolute paths don't trip the check
# NB: `media_store_path` is a relative path
filepaths = MediaFilePaths(media_store_path)
self._check_relative_path(filepaths, "url_cache/2020-01-02/GerZNDnDZVjsOtar")
self._check_absolute_path(filepaths, "url_cache/2020-01-02/GerZNDnDZVjsOtar")
filepaths = MediaFilePaths(os.path.abspath(media_store_path))
self._check_relative_path(filepaths, "url_cache/2020-01-02/GerZNDnDZVjsOtar")
self._check_absolute_path(filepaths, "url_cache/2020-01-02/GerZNDnDZVjsOtar")
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