mirror of
https://mau.dev/maunium/synapse.git
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595 lines
22 KiB
Python
595 lines
22 KiB
Python
# Copyright 2021 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import inspect
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import os
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from typing import Iterable
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from synapse.rest.media.v1.filepath import MediaFilePaths, _wrap_with_jail_check
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from tests import unittest
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class MediaFilePathsTestCase(unittest.TestCase):
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def setUp(self):
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super().setUp()
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self.filepaths = MediaFilePaths("/media_store")
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def test_local_media_filepath(self):
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"""Test local media paths"""
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self.assertEqual(
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self.filepaths.local_media_filepath_rel("GerZNDnDZVjsOtardLuwfIBg"),
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"local_content/Ge/rZ/NDnDZVjsOtardLuwfIBg",
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)
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self.assertEqual(
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self.filepaths.local_media_filepath("GerZNDnDZVjsOtardLuwfIBg"),
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"/media_store/local_content/Ge/rZ/NDnDZVjsOtardLuwfIBg",
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)
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def test_local_media_thumbnail(self):
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"""Test local media thumbnail paths"""
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self.assertEqual(
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self.filepaths.local_media_thumbnail_rel(
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"GerZNDnDZVjsOtardLuwfIBg", 800, 600, "image/jpeg", "scale"
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),
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"local_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg-scale",
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)
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self.assertEqual(
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self.filepaths.local_media_thumbnail(
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"GerZNDnDZVjsOtardLuwfIBg", 800, 600, "image/jpeg", "scale"
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),
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"/media_store/local_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg-scale",
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)
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def test_local_media_thumbnail_dir(self):
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"""Test local media thumbnail directory paths"""
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self.assertEqual(
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self.filepaths.local_media_thumbnail_dir("GerZNDnDZVjsOtardLuwfIBg"),
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"/media_store/local_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg",
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)
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def test_remote_media_filepath(self):
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"""Test remote media paths"""
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self.assertEqual(
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self.filepaths.remote_media_filepath_rel(
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"example.com", "GerZNDnDZVjsOtardLuwfIBg"
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),
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"remote_content/example.com/Ge/rZ/NDnDZVjsOtardLuwfIBg",
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)
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self.assertEqual(
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self.filepaths.remote_media_filepath(
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"example.com", "GerZNDnDZVjsOtardLuwfIBg"
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),
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"/media_store/remote_content/example.com/Ge/rZ/NDnDZVjsOtardLuwfIBg",
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)
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def test_remote_media_thumbnail(self):
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"""Test remote media thumbnail paths"""
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self.assertEqual(
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self.filepaths.remote_media_thumbnail_rel(
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"example.com",
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"GerZNDnDZVjsOtardLuwfIBg",
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800,
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600,
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"image/jpeg",
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"scale",
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),
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"remote_thumbnail/example.com/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg-scale",
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)
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self.assertEqual(
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self.filepaths.remote_media_thumbnail(
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"example.com",
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"GerZNDnDZVjsOtardLuwfIBg",
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800,
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600,
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"image/jpeg",
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"scale",
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),
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"/media_store/remote_thumbnail/example.com/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg-scale",
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)
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def test_remote_media_thumbnail_legacy(self):
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"""Test old-style remote media thumbnail paths"""
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self.assertEqual(
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self.filepaths.remote_media_thumbnail_rel_legacy(
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"example.com", "GerZNDnDZVjsOtardLuwfIBg", 800, 600, "image/jpeg"
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),
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"remote_thumbnail/example.com/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg",
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)
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def test_remote_media_thumbnail_dir(self):
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"""Test remote media thumbnail directory paths"""
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self.assertEqual(
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self.filepaths.remote_media_thumbnail_dir(
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"example.com", "GerZNDnDZVjsOtardLuwfIBg"
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),
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"/media_store/remote_thumbnail/example.com/Ge/rZ/NDnDZVjsOtardLuwfIBg",
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)
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def test_url_cache_filepath(self):
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"""Test URL cache paths"""
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self.assertEqual(
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self.filepaths.url_cache_filepath_rel("2020-01-02_GerZNDnDZVjsOtar"),
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"url_cache/2020-01-02/GerZNDnDZVjsOtar",
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)
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self.assertEqual(
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self.filepaths.url_cache_filepath("2020-01-02_GerZNDnDZVjsOtar"),
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"/media_store/url_cache/2020-01-02/GerZNDnDZVjsOtar",
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)
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def test_url_cache_filepath_legacy(self):
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"""Test old-style URL cache paths"""
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self.assertEqual(
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self.filepaths.url_cache_filepath_rel("GerZNDnDZVjsOtardLuwfIBg"),
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"url_cache/Ge/rZ/NDnDZVjsOtardLuwfIBg",
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)
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self.assertEqual(
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self.filepaths.url_cache_filepath("GerZNDnDZVjsOtardLuwfIBg"),
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"/media_store/url_cache/Ge/rZ/NDnDZVjsOtardLuwfIBg",
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)
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def test_url_cache_filepath_dirs_to_delete(self):
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"""Test URL cache cleanup paths"""
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self.assertEqual(
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self.filepaths.url_cache_filepath_dirs_to_delete(
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"2020-01-02_GerZNDnDZVjsOtar"
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),
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["/media_store/url_cache/2020-01-02"],
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)
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def test_url_cache_filepath_dirs_to_delete_legacy(self):
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"""Test old-style URL cache cleanup paths"""
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self.assertEqual(
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self.filepaths.url_cache_filepath_dirs_to_delete(
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"GerZNDnDZVjsOtardLuwfIBg"
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),
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[
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"/media_store/url_cache/Ge/rZ",
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"/media_store/url_cache/Ge",
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],
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)
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def test_url_cache_thumbnail(self):
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"""Test URL cache thumbnail paths"""
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self.assertEqual(
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self.filepaths.url_cache_thumbnail_rel(
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"2020-01-02_GerZNDnDZVjsOtar", 800, 600, "image/jpeg", "scale"
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),
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"url_cache_thumbnails/2020-01-02/GerZNDnDZVjsOtar/800-600-image-jpeg-scale",
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)
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self.assertEqual(
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self.filepaths.url_cache_thumbnail(
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"2020-01-02_GerZNDnDZVjsOtar", 800, 600, "image/jpeg", "scale"
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),
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"/media_store/url_cache_thumbnails/2020-01-02/GerZNDnDZVjsOtar/800-600-image-jpeg-scale",
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)
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def test_url_cache_thumbnail_legacy(self):
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"""Test old-style URL cache thumbnail paths"""
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self.assertEqual(
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self.filepaths.url_cache_thumbnail_rel(
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"GerZNDnDZVjsOtardLuwfIBg", 800, 600, "image/jpeg", "scale"
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),
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"url_cache_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg-scale",
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)
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self.assertEqual(
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self.filepaths.url_cache_thumbnail(
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"GerZNDnDZVjsOtardLuwfIBg", 800, 600, "image/jpeg", "scale"
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),
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"/media_store/url_cache_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg/800-600-image-jpeg-scale",
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)
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def test_url_cache_thumbnail_directory(self):
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"""Test URL cache thumbnail directory paths"""
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self.assertEqual(
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self.filepaths.url_cache_thumbnail_directory_rel(
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"2020-01-02_GerZNDnDZVjsOtar"
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),
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"url_cache_thumbnails/2020-01-02/GerZNDnDZVjsOtar",
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)
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self.assertEqual(
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self.filepaths.url_cache_thumbnail_directory("2020-01-02_GerZNDnDZVjsOtar"),
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"/media_store/url_cache_thumbnails/2020-01-02/GerZNDnDZVjsOtar",
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)
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def test_url_cache_thumbnail_directory_legacy(self):
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"""Test old-style URL cache thumbnail directory paths"""
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self.assertEqual(
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self.filepaths.url_cache_thumbnail_directory_rel(
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"GerZNDnDZVjsOtardLuwfIBg"
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),
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"url_cache_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg",
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)
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self.assertEqual(
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self.filepaths.url_cache_thumbnail_directory("GerZNDnDZVjsOtardLuwfIBg"),
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"/media_store/url_cache_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg",
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)
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def test_url_cache_thumbnail_dirs_to_delete(self):
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"""Test URL cache thumbnail cleanup paths"""
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self.assertEqual(
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self.filepaths.url_cache_thumbnail_dirs_to_delete(
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"2020-01-02_GerZNDnDZVjsOtar"
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),
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[
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"/media_store/url_cache_thumbnails/2020-01-02/GerZNDnDZVjsOtar",
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"/media_store/url_cache_thumbnails/2020-01-02",
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],
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)
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def test_url_cache_thumbnail_dirs_to_delete_legacy(self):
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"""Test old-style URL cache thumbnail cleanup paths"""
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self.assertEqual(
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self.filepaths.url_cache_thumbnail_dirs_to_delete(
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"GerZNDnDZVjsOtardLuwfIBg"
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),
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[
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"/media_store/url_cache_thumbnails/Ge/rZ/NDnDZVjsOtardLuwfIBg",
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"/media_store/url_cache_thumbnails/Ge/rZ",
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"/media_store/url_cache_thumbnails/Ge",
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],
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)
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def test_server_name_validation(self):
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"""Test validation of server names"""
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self._test_path_validation(
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[
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"remote_media_filepath_rel",
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"remote_media_filepath",
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"remote_media_thumbnail_rel",
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"remote_media_thumbnail",
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"remote_media_thumbnail_rel_legacy",
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"remote_media_thumbnail_dir",
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],
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parameter="server_name",
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valid_values=[
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"matrix.org",
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"matrix.org:8448",
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"matrix-federation.matrix.org",
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"matrix-federation.matrix.org:8448",
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"10.1.12.123",
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"10.1.12.123:8448",
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"[fd00:abcd::ffff]",
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"[fd00:abcd::ffff]:8448",
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],
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invalid_values=[
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"/matrix.org",
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"matrix.org/..",
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"matrix.org\x00",
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"",
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".",
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"..",
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"/",
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],
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)
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def test_file_id_validation(self):
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"""Test validation of local, remote and legacy URL cache file / media IDs"""
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# File / media IDs get split into three parts to form paths, consisting of the
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# first two characters, next two characters and rest of the ID.
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valid_file_ids = [
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"GerZNDnDZVjsOtardLuwfIBg",
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# Unexpected, but produces an acceptable path:
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"GerZN", # "N" becomes the last directory
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]
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invalid_file_ids = [
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"/erZNDnDZVjsOtardLuwfIBg",
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"Ge/ZNDnDZVjsOtardLuwfIBg",
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"GerZ/DnDZVjsOtardLuwfIBg",
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"GerZ/..",
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"G\x00rZNDnDZVjsOtardLuwfIBg",
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"Ger\x00NDnDZVjsOtardLuwfIBg",
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"GerZNDnDZVjsOtardLuwfIBg\x00",
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"",
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"Ge",
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"GerZ",
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"GerZ.",
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"..rZNDnDZVjsOtardLuwfIBg",
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"Ge..NDnDZVjsOtardLuwfIBg",
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"GerZ..",
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"GerZ/",
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]
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self._test_path_validation(
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[
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"local_media_filepath_rel",
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"local_media_filepath",
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"local_media_thumbnail_rel",
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"local_media_thumbnail",
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"local_media_thumbnail_dir",
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# Legacy URL cache media IDs
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"url_cache_filepath_rel",
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"url_cache_filepath",
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# `url_cache_filepath_dirs_to_delete` is tested below.
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"url_cache_thumbnail_rel",
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"url_cache_thumbnail",
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"url_cache_thumbnail_directory_rel",
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"url_cache_thumbnail_directory",
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"url_cache_thumbnail_dirs_to_delete",
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],
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parameter="media_id",
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valid_values=valid_file_ids,
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invalid_values=invalid_file_ids,
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)
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# `url_cache_filepath_dirs_to_delete` ignores what would be the last path
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# component, so only the first 4 characters matter.
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self._test_path_validation(
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[
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"url_cache_filepath_dirs_to_delete",
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],
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parameter="media_id",
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valid_values=valid_file_ids,
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invalid_values=[
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"/erZNDnDZVjsOtardLuwfIBg",
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"Ge/ZNDnDZVjsOtardLuwfIBg",
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"G\x00rZNDnDZVjsOtardLuwfIBg",
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"Ger\x00NDnDZVjsOtardLuwfIBg",
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"",
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"Ge",
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"..rZNDnDZVjsOtardLuwfIBg",
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"Ge..NDnDZVjsOtardLuwfIBg",
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],
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)
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self._test_path_validation(
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[
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"remote_media_filepath_rel",
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"remote_media_filepath",
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"remote_media_thumbnail_rel",
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"remote_media_thumbnail",
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"remote_media_thumbnail_rel_legacy",
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"remote_media_thumbnail_dir",
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],
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parameter="file_id",
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valid_values=valid_file_ids,
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invalid_values=invalid_file_ids,
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)
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def test_url_cache_media_id_validation(self):
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"""Test validation of URL cache media IDs"""
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self._test_path_validation(
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[
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"url_cache_filepath_rel",
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"url_cache_filepath",
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# `url_cache_filepath_dirs_to_delete` only cares about the date prefix
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"url_cache_thumbnail_rel",
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"url_cache_thumbnail",
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"url_cache_thumbnail_directory_rel",
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"url_cache_thumbnail_directory",
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"url_cache_thumbnail_dirs_to_delete",
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],
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parameter="media_id",
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valid_values=[
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"2020-01-02_GerZNDnDZVjsOtar",
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"2020-01-02_G", # Unexpected, but produces an acceptable path
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],
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invalid_values=[
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"2020-01-02",
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"2020-01-02-",
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"2020-01-02-.",
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"2020-01-02-..",
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"2020-01-02-/",
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"2020-01-02-/GerZNDnDZVjsOtar",
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"2020-01-02-GerZNDnDZVjsOtar/..",
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"2020-01-02-GerZNDnDZVjsOtar\x00",
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],
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)
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def test_content_type_validation(self):
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"""Test validation of thumbnail content types"""
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self._test_path_validation(
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[
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"local_media_thumbnail_rel",
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"local_media_thumbnail",
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"remote_media_thumbnail_rel",
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"remote_media_thumbnail",
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"remote_media_thumbnail_rel_legacy",
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"url_cache_thumbnail_rel",
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"url_cache_thumbnail",
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],
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parameter="content_type",
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valid_values=[
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"image/jpeg",
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],
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invalid_values=[
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"", # ValueError: not enough values to unpack
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"image/jpeg/abc", # ValueError: too many values to unpack
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"image/jpeg\x00",
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],
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)
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def test_thumbnail_method_validation(self):
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"""Test validation of thumbnail methods"""
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self._test_path_validation(
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[
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"local_media_thumbnail_rel",
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"local_media_thumbnail",
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"remote_media_thumbnail_rel",
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"remote_media_thumbnail",
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"url_cache_thumbnail_rel",
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"url_cache_thumbnail",
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],
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parameter="method",
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valid_values=[
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"crop",
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"scale",
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],
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invalid_values=[
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"/scale",
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"scale/..",
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"scale\x00",
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"/",
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],
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)
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def _test_path_validation(
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self,
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methods: Iterable[str],
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parameter: str,
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valid_values: Iterable[str],
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invalid_values: Iterable[str],
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):
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"""Test that the specified methods validate the named parameter as expected
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Args:
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methods: The names of `MediaFilePaths` methods to test
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parameter: The name of the parameter to test
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valid_values: A list of parameter values that are expected to be accepted
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invalid_values: A list of parameter values that are expected to be rejected
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Raises:
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AssertionError: If a value was accepted when it should have failed
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validation.
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ValueError: If a value failed validation when it should have been accepted.
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"""
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for method in methods:
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get_path = getattr(self.filepaths, method)
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parameters = inspect.signature(get_path).parameters
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kwargs = {
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"server_name": "matrix.org",
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"media_id": "GerZNDnDZVjsOtardLuwfIBg",
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"file_id": "GerZNDnDZVjsOtardLuwfIBg",
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"width": 800,
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"height": 600,
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"content_type": "image/jpeg",
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"method": "scale",
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}
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if get_path.__name__.startswith("url_"):
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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")
|