114 lines
4.3 KiB
Python
114 lines
4.3 KiB
Python
# Copyright 2023 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 os
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from twisted.test.proto_helpers import MemoryReactor
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from synapse.server import HomeServer
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from synapse.util import Clock
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from tests import unittest
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from tests.unittest import override_config
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try:
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import lxml
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except ImportError:
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lxml = None # type: ignore[assignment]
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class URLPreviewTests(unittest.HomeserverTestCase):
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if not lxml:
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skip = "url preview feature requires lxml"
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def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
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config = self.default_config()
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config["url_preview_enabled"] = True
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config["max_spider_size"] = 9999999
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config["url_preview_ip_range_blacklist"] = (
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"192.168.1.1",
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"1.0.0.0/8",
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"3fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff",
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"2001:800::/21",
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)
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self.storage_path = self.mktemp()
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self.media_store_path = self.mktemp()
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os.mkdir(self.storage_path)
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os.mkdir(self.media_store_path)
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config["media_store_path"] = self.media_store_path
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provider_config = {
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"module": "synapse.media.storage_provider.FileStorageProviderBackend",
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"store_local": True,
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"store_synchronous": False,
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"store_remote": True,
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"config": {"directory": self.storage_path},
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}
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config["media_storage_providers"] = [provider_config]
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return self.setup_test_homeserver(config=config)
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def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
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media_repo = hs.get_media_repository()
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assert media_repo.url_previewer is not None
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self.url_previewer = media_repo.url_previewer
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def test_all_urls_allowed(self) -> None:
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self.assertFalse(self.url_previewer._is_url_blocked("http://matrix.org"))
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self.assertFalse(self.url_previewer._is_url_blocked("https://matrix.org"))
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self.assertFalse(self.url_previewer._is_url_blocked("http://localhost:8000"))
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self.assertFalse(
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self.url_previewer._is_url_blocked("http://user:pass@matrix.org")
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)
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@override_config(
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{
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"url_preview_url_blacklist": [
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{"username": "user"},
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{"scheme": "http", "netloc": "matrix.org"},
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]
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}
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)
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def test_blocked_url(self) -> None:
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# Blocked via scheme and URL.
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self.assertTrue(self.url_previewer._is_url_blocked("http://matrix.org"))
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# Not blocked because all components must match.
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self.assertFalse(self.url_previewer._is_url_blocked("https://matrix.org"))
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# Blocked due to the user.
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self.assertTrue(
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self.url_previewer._is_url_blocked("http://user:pass@example.com")
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)
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self.assertTrue(self.url_previewer._is_url_blocked("http://user@example.com"))
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@override_config({"url_preview_url_blacklist": [{"netloc": "*.example.com"}]})
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def test_glob_blocked_url(self) -> None:
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# All subdomains are blocked.
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self.assertTrue(self.url_previewer._is_url_blocked("http://foo.example.com"))
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self.assertTrue(self.url_previewer._is_url_blocked("http://.example.com"))
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# The TLD is not blocked.
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self.assertFalse(self.url_previewer._is_url_blocked("https://example.com"))
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@override_config({"url_preview_url_blacklist": [{"netloc": "^.+\\.example\\.com"}]})
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def test_regex_blocked_urL(self) -> None:
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# All subdomains are blocked.
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self.assertTrue(self.url_previewer._is_url_blocked("http://foo.example.com"))
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# Requires a non-empty subdomain.
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self.assertFalse(self.url_previewer._is_url_blocked("http://.example.com"))
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# The TLD is not blocked.
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self.assertFalse(self.url_previewer._is_url_blocked("https://example.com"))
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