793 lines
28 KiB
Python
793 lines
28 KiB
Python
# Copyright 2018-2021 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 os
|
|
import shutil
|
|
import tempfile
|
|
from binascii import unhexlify
|
|
from io import BytesIO
|
|
from typing import Any, BinaryIO, ClassVar, Dict, List, Optional, Tuple, Union
|
|
from unittest.mock import Mock
|
|
from urllib import parse
|
|
|
|
import attr
|
|
from parameterized import parameterized, parameterized_class
|
|
from PIL import Image as Image
|
|
from typing_extensions import Literal
|
|
|
|
from twisted.internet import defer
|
|
from twisted.internet.defer import Deferred
|
|
from twisted.test.proto_helpers import MemoryReactor
|
|
|
|
from synapse.api.errors import Codes
|
|
from synapse.events import EventBase
|
|
from synapse.http.types import QueryParams
|
|
from synapse.logging.context import make_deferred_yieldable
|
|
from synapse.media._base import FileInfo
|
|
from synapse.media.filepath import MediaFilePaths
|
|
from synapse.media.media_storage import MediaStorage, ReadableFileWrapper
|
|
from synapse.media.storage_provider import FileStorageProviderBackend
|
|
from synapse.module_api import ModuleApi
|
|
from synapse.module_api.callbacks.spamchecker_callbacks import load_legacy_spam_checkers
|
|
from synapse.rest import admin
|
|
from synapse.rest.client import login
|
|
from synapse.server import HomeServer
|
|
from synapse.types import JsonDict, RoomAlias
|
|
from synapse.util import Clock
|
|
|
|
from tests import unittest
|
|
from tests.server import FakeChannel, FakeSite, make_request
|
|
from tests.test_utils import SMALL_PNG
|
|
from tests.utils import default_config
|
|
|
|
|
|
class MediaStorageTests(unittest.HomeserverTestCase):
|
|
needs_threadpool = True
|
|
|
|
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
|
|
self.test_dir = tempfile.mkdtemp(prefix="synapse-tests-")
|
|
self.addCleanup(shutil.rmtree, self.test_dir)
|
|
|
|
self.primary_base_path = os.path.join(self.test_dir, "primary")
|
|
self.secondary_base_path = os.path.join(self.test_dir, "secondary")
|
|
|
|
hs.config.media.media_store_path = self.primary_base_path
|
|
|
|
storage_providers = [FileStorageProviderBackend(hs, self.secondary_base_path)]
|
|
|
|
self.filepaths = MediaFilePaths(self.primary_base_path)
|
|
self.media_storage = MediaStorage(
|
|
hs, self.primary_base_path, self.filepaths, storage_providers
|
|
)
|
|
|
|
def test_ensure_media_is_in_local_cache(self) -> None:
|
|
media_id = "some_media_id"
|
|
test_body = "Test\n"
|
|
|
|
# First we create a file that is in a storage provider but not in the
|
|
# local primary media store
|
|
rel_path = self.filepaths.local_media_filepath_rel(media_id)
|
|
secondary_path = os.path.join(self.secondary_base_path, rel_path)
|
|
|
|
os.makedirs(os.path.dirname(secondary_path))
|
|
|
|
with open(secondary_path, "w") as f:
|
|
f.write(test_body)
|
|
|
|
# Now we run ensure_media_is_in_local_cache, which should copy the file
|
|
# to the local cache.
|
|
file_info = FileInfo(None, media_id)
|
|
|
|
# This uses a real blocking threadpool so we have to wait for it to be
|
|
# actually done :/
|
|
x = defer.ensureDeferred(
|
|
self.media_storage.ensure_media_is_in_local_cache(file_info)
|
|
)
|
|
|
|
# Hotloop until the threadpool does its job...
|
|
self.wait_on_thread(x)
|
|
|
|
local_path = self.get_success(x)
|
|
|
|
self.assertTrue(os.path.exists(local_path))
|
|
|
|
# Asserts the file is under the expected local cache directory
|
|
self.assertEqual(
|
|
os.path.commonprefix([self.primary_base_path, local_path]),
|
|
self.primary_base_path,
|
|
)
|
|
|
|
with open(local_path) as f:
|
|
body = f.read()
|
|
|
|
self.assertEqual(test_body, body)
|
|
|
|
|
|
@attr.s(auto_attribs=True, slots=True, frozen=True)
|
|
class _TestImage:
|
|
"""An image for testing thumbnailing with the expected results
|
|
|
|
Attributes:
|
|
data: The raw image to thumbnail
|
|
content_type: The type of the image as a content type, e.g. "image/png"
|
|
extension: The extension associated with the format, e.g. ".png"
|
|
expected_cropped: The expected bytes from cropped thumbnailing, or None if
|
|
test should just check for success.
|
|
expected_scaled: The expected bytes from scaled thumbnailing, or None if
|
|
test should just check for a valid image returned.
|
|
expected_found: True if the file should exist on the server, or False if
|
|
a 404/400 is expected.
|
|
unable_to_thumbnail: True if we expect the thumbnailing to fail (400), or
|
|
False if the thumbnailing should succeed or a normal 404 is expected.
|
|
"""
|
|
|
|
data: bytes
|
|
content_type: bytes
|
|
extension: bytes
|
|
expected_cropped: Optional[bytes] = None
|
|
expected_scaled: Optional[bytes] = None
|
|
expected_found: bool = True
|
|
unable_to_thumbnail: bool = False
|
|
|
|
|
|
@parameterized_class(
|
|
("test_image",),
|
|
[
|
|
# small png
|
|
(
|
|
_TestImage(
|
|
SMALL_PNG,
|
|
b"image/png",
|
|
b".png",
|
|
unhexlify(
|
|
b"89504e470d0a1a0a0000000d4948445200000020000000200806"
|
|
b"000000737a7af40000001a49444154789cedc101010000008220"
|
|
b"ffaf6e484001000000ef0610200001194334ee0000000049454e"
|
|
b"44ae426082"
|
|
),
|
|
unhexlify(
|
|
b"89504e470d0a1a0a0000000d4948445200000001000000010806"
|
|
b"0000001f15c4890000000d49444154789c636060606000000005"
|
|
b"0001a5f645400000000049454e44ae426082"
|
|
),
|
|
),
|
|
),
|
|
# small png with transparency.
|
|
(
|
|
_TestImage(
|
|
unhexlify(
|
|
b"89504e470d0a1a0a0000000d49484452000000010000000101000"
|
|
b"00000376ef9240000000274524e5300010194fdae0000000a4944"
|
|
b"4154789c636800000082008177cd72b60000000049454e44ae426"
|
|
b"082"
|
|
),
|
|
b"image/png",
|
|
b".png",
|
|
# Note that we don't check the output since it varies across
|
|
# different versions of Pillow.
|
|
),
|
|
),
|
|
# small lossless webp
|
|
(
|
|
_TestImage(
|
|
unhexlify(
|
|
b"524946461a000000574542505650384c0d0000002f0000001007"
|
|
b"1011118888fe0700"
|
|
),
|
|
b"image/webp",
|
|
b".webp",
|
|
),
|
|
),
|
|
# an empty file
|
|
(
|
|
_TestImage(
|
|
b"",
|
|
b"image/gif",
|
|
b".gif",
|
|
expected_found=False,
|
|
unable_to_thumbnail=True,
|
|
),
|
|
),
|
|
],
|
|
)
|
|
class MediaRepoTests(unittest.HomeserverTestCase):
|
|
test_image: ClassVar[_TestImage]
|
|
hijack_auth = True
|
|
user_id = "@test:user"
|
|
|
|
def make_homeserver(self, reactor: MemoryReactor, clock: Clock) -> HomeServer:
|
|
self.fetches: List[
|
|
Tuple[
|
|
"Deferred[Tuple[bytes, Tuple[int, Dict[bytes, List[bytes]]]]]",
|
|
str,
|
|
str,
|
|
Optional[QueryParams],
|
|
]
|
|
] = []
|
|
|
|
def get_file(
|
|
destination: str,
|
|
path: str,
|
|
output_stream: BinaryIO,
|
|
args: Optional[QueryParams] = None,
|
|
retry_on_dns_fail: bool = True,
|
|
max_size: Optional[int] = None,
|
|
ignore_backoff: bool = False,
|
|
) -> "Deferred[Tuple[int, Dict[bytes, List[bytes]]]]":
|
|
"""A mock for MatrixFederationHttpClient.get_file."""
|
|
|
|
def write_to(
|
|
r: Tuple[bytes, Tuple[int, Dict[bytes, List[bytes]]]]
|
|
) -> Tuple[int, Dict[bytes, List[bytes]]]:
|
|
data, response = r
|
|
output_stream.write(data)
|
|
return response
|
|
|
|
d: Deferred[Tuple[bytes, Tuple[int, Dict[bytes, List[bytes]]]]] = Deferred()
|
|
self.fetches.append((d, destination, path, args))
|
|
# Note that this callback changes the value held by d.
|
|
d_after_callback = d.addCallback(write_to)
|
|
return make_deferred_yieldable(d_after_callback)
|
|
|
|
# Mock out the homeserver's MatrixFederationHttpClient
|
|
client = Mock()
|
|
client.get_file = get_file
|
|
|
|
self.storage_path = self.mktemp()
|
|
self.media_store_path = self.mktemp()
|
|
os.mkdir(self.storage_path)
|
|
os.mkdir(self.media_store_path)
|
|
|
|
config = self.default_config()
|
|
config["media_store_path"] = self.media_store_path
|
|
config["max_image_pixels"] = 2000000
|
|
|
|
provider_config = {
|
|
"module": "synapse.media.storage_provider.FileStorageProviderBackend",
|
|
"store_local": True,
|
|
"store_synchronous": False,
|
|
"store_remote": True,
|
|
"config": {"directory": self.storage_path},
|
|
}
|
|
config["media_storage_providers"] = [provider_config]
|
|
|
|
hs = self.setup_test_homeserver(config=config, federation_http_client=client)
|
|
|
|
return hs
|
|
|
|
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
|
|
media_resource = hs.get_media_repository_resource()
|
|
self.download_resource = media_resource.children[b"download"]
|
|
self.thumbnail_resource = media_resource.children[b"thumbnail"]
|
|
self.store = hs.get_datastores().main
|
|
self.media_repo = hs.get_media_repository()
|
|
|
|
self.media_id = "example.com/12345"
|
|
|
|
def _req(
|
|
self, content_disposition: Optional[bytes], include_content_type: bool = True
|
|
) -> FakeChannel:
|
|
channel = make_request(
|
|
self.reactor,
|
|
FakeSite(self.download_resource, self.reactor),
|
|
"GET",
|
|
self.media_id,
|
|
shorthand=False,
|
|
await_result=False,
|
|
)
|
|
self.pump()
|
|
|
|
# We've made one fetch, to example.com, using the media URL, and asking
|
|
# the other server not to do a remote fetch
|
|
self.assertEqual(len(self.fetches), 1)
|
|
self.assertEqual(self.fetches[0][1], "example.com")
|
|
self.assertEqual(
|
|
self.fetches[0][2], "/_matrix/media/r0/download/" + self.media_id
|
|
)
|
|
self.assertEqual(self.fetches[0][3], {"allow_remote": "false"})
|
|
|
|
headers = {
|
|
b"Content-Length": [b"%d" % (len(self.test_image.data))],
|
|
}
|
|
|
|
if include_content_type:
|
|
headers[b"Content-Type"] = [self.test_image.content_type]
|
|
|
|
if content_disposition:
|
|
headers[b"Content-Disposition"] = [content_disposition]
|
|
|
|
self.fetches[0][0].callback(
|
|
(self.test_image.data, (len(self.test_image.data), headers))
|
|
)
|
|
|
|
self.pump()
|
|
self.assertEqual(channel.code, 200)
|
|
|
|
return channel
|
|
|
|
def test_handle_missing_content_type(self) -> None:
|
|
channel = self._req(
|
|
b"attachment; filename=out" + self.test_image.extension,
|
|
include_content_type=False,
|
|
)
|
|
headers = channel.headers
|
|
self.assertEqual(channel.code, 200)
|
|
self.assertEqual(
|
|
headers.getRawHeaders(b"Content-Type"), [b"application/octet-stream"]
|
|
)
|
|
|
|
def test_disposition_filename_ascii(self) -> None:
|
|
"""
|
|
If the filename is filename=<ascii> then Synapse will decode it as an
|
|
ASCII string, and use filename= in the response.
|
|
"""
|
|
channel = self._req(b"attachment; filename=out" + self.test_image.extension)
|
|
|
|
headers = channel.headers
|
|
self.assertEqual(
|
|
headers.getRawHeaders(b"Content-Type"), [self.test_image.content_type]
|
|
)
|
|
self.assertEqual(
|
|
headers.getRawHeaders(b"Content-Disposition"),
|
|
[b"attachment; filename=out" + self.test_image.extension],
|
|
)
|
|
|
|
def test_disposition_filenamestar_utf8escaped(self) -> None:
|
|
"""
|
|
If the filename is filename=*utf8''<utf8 escaped> then Synapse will
|
|
correctly decode it as the UTF-8 string, and use filename* in the
|
|
response.
|
|
"""
|
|
filename = parse.quote("\u2603".encode()).encode("ascii")
|
|
channel = self._req(
|
|
b"attachment; filename*=utf-8''" + filename + self.test_image.extension
|
|
)
|
|
|
|
headers = channel.headers
|
|
self.assertEqual(
|
|
headers.getRawHeaders(b"Content-Type"), [self.test_image.content_type]
|
|
)
|
|
self.assertEqual(
|
|
headers.getRawHeaders(b"Content-Disposition"),
|
|
[b"attachment; filename*=utf-8''" + filename + self.test_image.extension],
|
|
)
|
|
|
|
def test_disposition_none(self) -> None:
|
|
"""
|
|
If there is no filename, Content-Disposition should only
|
|
be a disposition type.
|
|
"""
|
|
channel = self._req(None)
|
|
|
|
headers = channel.headers
|
|
self.assertEqual(
|
|
headers.getRawHeaders(b"Content-Type"), [self.test_image.content_type]
|
|
)
|
|
self.assertEqual(headers.getRawHeaders(b"Content-Disposition"), [b"attachment"])
|
|
|
|
def test_thumbnail_crop(self) -> None:
|
|
"""Test that a cropped remote thumbnail is available."""
|
|
self._test_thumbnail(
|
|
"crop",
|
|
self.test_image.expected_cropped,
|
|
expected_found=self.test_image.expected_found,
|
|
unable_to_thumbnail=self.test_image.unable_to_thumbnail,
|
|
)
|
|
|
|
def test_thumbnail_scale(self) -> None:
|
|
"""Test that a scaled remote thumbnail is available."""
|
|
self._test_thumbnail(
|
|
"scale",
|
|
self.test_image.expected_scaled,
|
|
expected_found=self.test_image.expected_found,
|
|
unable_to_thumbnail=self.test_image.unable_to_thumbnail,
|
|
)
|
|
|
|
def test_invalid_type(self) -> None:
|
|
"""An invalid thumbnail type is never available."""
|
|
self._test_thumbnail(
|
|
"invalid",
|
|
None,
|
|
expected_found=False,
|
|
unable_to_thumbnail=self.test_image.unable_to_thumbnail,
|
|
)
|
|
|
|
@unittest.override_config(
|
|
{"thumbnail_sizes": [{"width": 32, "height": 32, "method": "scale"}]}
|
|
)
|
|
def test_no_thumbnail_crop(self) -> None:
|
|
"""
|
|
Override the config to generate only scaled thumbnails, but request a cropped one.
|
|
"""
|
|
self._test_thumbnail(
|
|
"crop",
|
|
None,
|
|
expected_found=False,
|
|
unable_to_thumbnail=self.test_image.unable_to_thumbnail,
|
|
)
|
|
|
|
@unittest.override_config(
|
|
{"thumbnail_sizes": [{"width": 32, "height": 32, "method": "crop"}]}
|
|
)
|
|
def test_no_thumbnail_scale(self) -> None:
|
|
"""
|
|
Override the config to generate only cropped thumbnails, but request a scaled one.
|
|
"""
|
|
self._test_thumbnail(
|
|
"scale",
|
|
None,
|
|
expected_found=False,
|
|
unable_to_thumbnail=self.test_image.unable_to_thumbnail,
|
|
)
|
|
|
|
def test_thumbnail_repeated_thumbnail(self) -> None:
|
|
"""Test that fetching the same thumbnail works, and deleting the on disk
|
|
thumbnail regenerates it.
|
|
"""
|
|
self._test_thumbnail(
|
|
"scale",
|
|
self.test_image.expected_scaled,
|
|
expected_found=self.test_image.expected_found,
|
|
unable_to_thumbnail=self.test_image.unable_to_thumbnail,
|
|
)
|
|
|
|
if not self.test_image.expected_found:
|
|
return
|
|
|
|
# Fetching again should work, without re-requesting the image from the
|
|
# remote.
|
|
params = "?width=32&height=32&method=scale"
|
|
channel = make_request(
|
|
self.reactor,
|
|
FakeSite(self.thumbnail_resource, self.reactor),
|
|
"GET",
|
|
self.media_id + params,
|
|
shorthand=False,
|
|
await_result=False,
|
|
)
|
|
self.pump()
|
|
|
|
self.assertEqual(channel.code, 200)
|
|
if self.test_image.expected_scaled:
|
|
self.assertEqual(
|
|
channel.result["body"],
|
|
self.test_image.expected_scaled,
|
|
channel.result["body"],
|
|
)
|
|
|
|
# Deleting the thumbnail on disk then re-requesting it should work as
|
|
# Synapse should regenerate missing thumbnails.
|
|
origin, media_id = self.media_id.split("/")
|
|
info = self.get_success(self.store.get_cached_remote_media(origin, media_id))
|
|
assert info is not None
|
|
file_id = info["filesystem_id"]
|
|
|
|
thumbnail_dir = self.media_repo.filepaths.remote_media_thumbnail_dir(
|
|
origin, file_id
|
|
)
|
|
shutil.rmtree(thumbnail_dir, ignore_errors=True)
|
|
|
|
channel = make_request(
|
|
self.reactor,
|
|
FakeSite(self.thumbnail_resource, self.reactor),
|
|
"GET",
|
|
self.media_id + params,
|
|
shorthand=False,
|
|
await_result=False,
|
|
)
|
|
self.pump()
|
|
|
|
self.assertEqual(channel.code, 200)
|
|
if self.test_image.expected_scaled:
|
|
self.assertEqual(
|
|
channel.result["body"],
|
|
self.test_image.expected_scaled,
|
|
channel.result["body"],
|
|
)
|
|
|
|
def _test_thumbnail(
|
|
self,
|
|
method: str,
|
|
expected_body: Optional[bytes],
|
|
expected_found: bool,
|
|
unable_to_thumbnail: bool = False,
|
|
) -> None:
|
|
"""Test the given thumbnailing method works as expected.
|
|
|
|
Args:
|
|
method: The thumbnailing method to use (crop, scale).
|
|
expected_body: The expected bytes from thumbnailing, or None if
|
|
test should just check for a valid image.
|
|
expected_found: True if the file should exist on the server, or False if
|
|
a 404/400 is expected.
|
|
unable_to_thumbnail: True if we expect the thumbnailing to fail (400), or
|
|
False if the thumbnailing should succeed or a normal 404 is expected.
|
|
"""
|
|
|
|
params = "?width=32&height=32&method=" + method
|
|
channel = make_request(
|
|
self.reactor,
|
|
FakeSite(self.thumbnail_resource, self.reactor),
|
|
"GET",
|
|
self.media_id + params,
|
|
shorthand=False,
|
|
await_result=False,
|
|
)
|
|
self.pump()
|
|
|
|
headers = {
|
|
b"Content-Length": [b"%d" % (len(self.test_image.data))],
|
|
b"Content-Type": [self.test_image.content_type],
|
|
}
|
|
self.fetches[0][0].callback(
|
|
(self.test_image.data, (len(self.test_image.data), headers))
|
|
)
|
|
self.pump()
|
|
|
|
if expected_found:
|
|
self.assertEqual(channel.code, 200)
|
|
|
|
self.assertEqual(
|
|
channel.headers.getRawHeaders(b"Cross-Origin-Resource-Policy"),
|
|
[b"cross-origin"],
|
|
)
|
|
|
|
if expected_body is not None:
|
|
self.assertEqual(
|
|
channel.result["body"], expected_body, channel.result["body"]
|
|
)
|
|
else:
|
|
# ensure that the result is at least some valid image
|
|
Image.open(BytesIO(channel.result["body"]))
|
|
elif unable_to_thumbnail:
|
|
# A 400 with a JSON body.
|
|
self.assertEqual(channel.code, 400)
|
|
self.assertEqual(
|
|
channel.json_body,
|
|
{
|
|
"errcode": "M_UNKNOWN",
|
|
"error": "Cannot find any thumbnails for the requested media ([b'example.com', b'12345']). This might mean the media is not a supported_media_format=(image/jpeg, image/jpg, image/webp, image/gif, image/png) or that thumbnailing failed for some other reason. (Dynamic thumbnails are disabled on this server.)",
|
|
},
|
|
)
|
|
else:
|
|
# A 404 with a JSON body.
|
|
self.assertEqual(channel.code, 404)
|
|
self.assertEqual(
|
|
channel.json_body,
|
|
{
|
|
"errcode": "M_NOT_FOUND",
|
|
"error": "Not found [b'example.com', b'12345']",
|
|
},
|
|
)
|
|
|
|
@parameterized.expand([("crop", 16), ("crop", 64), ("scale", 16), ("scale", 64)])
|
|
def test_same_quality(self, method: str, desired_size: int) -> None:
|
|
"""Test that choosing between thumbnails with the same quality rating succeeds.
|
|
|
|
We are not particular about which thumbnail is chosen."""
|
|
self.assertIsNotNone(
|
|
self.thumbnail_resource._select_thumbnail(
|
|
desired_width=desired_size,
|
|
desired_height=desired_size,
|
|
desired_method=method,
|
|
desired_type=self.test_image.content_type,
|
|
# Provide two identical thumbnails which are guaranteed to have the same
|
|
# quality rating.
|
|
thumbnail_infos=[
|
|
{
|
|
"thumbnail_width": 32,
|
|
"thumbnail_height": 32,
|
|
"thumbnail_method": method,
|
|
"thumbnail_type": self.test_image.content_type,
|
|
"thumbnail_length": 256,
|
|
"filesystem_id": f"thumbnail1{self.test_image.extension.decode()}",
|
|
},
|
|
{
|
|
"thumbnail_width": 32,
|
|
"thumbnail_height": 32,
|
|
"thumbnail_method": method,
|
|
"thumbnail_type": self.test_image.content_type,
|
|
"thumbnail_length": 256,
|
|
"filesystem_id": f"thumbnail2{self.test_image.extension.decode()}",
|
|
},
|
|
],
|
|
file_id=f"image{self.test_image.extension.decode()}",
|
|
url_cache=None,
|
|
server_name=None,
|
|
)
|
|
)
|
|
|
|
def test_x_robots_tag_header(self) -> None:
|
|
"""
|
|
Tests that the `X-Robots-Tag` header is present, which informs web crawlers
|
|
to not index, archive, or follow links in media.
|
|
"""
|
|
channel = self._req(b"attachment; filename=out" + self.test_image.extension)
|
|
|
|
headers = channel.headers
|
|
self.assertEqual(
|
|
headers.getRawHeaders(b"X-Robots-Tag"),
|
|
[b"noindex, nofollow, noarchive, noimageindex"],
|
|
)
|
|
|
|
def test_cross_origin_resource_policy_header(self) -> None:
|
|
"""
|
|
Test that the Cross-Origin-Resource-Policy header is set to "cross-origin"
|
|
allowing web clients to embed media from the downloads API.
|
|
"""
|
|
channel = self._req(b"attachment; filename=out" + self.test_image.extension)
|
|
|
|
headers = channel.headers
|
|
|
|
self.assertEqual(
|
|
headers.getRawHeaders(b"Cross-Origin-Resource-Policy"),
|
|
[b"cross-origin"],
|
|
)
|
|
|
|
|
|
class TestSpamCheckerLegacy:
|
|
"""A spam checker module that rejects all media that includes the bytes
|
|
`evil`.
|
|
|
|
Uses the legacy Spam-Checker API.
|
|
"""
|
|
|
|
def __init__(self, config: Dict[str, Any], api: ModuleApi) -> None:
|
|
self.config = config
|
|
self.api = api
|
|
|
|
@staticmethod
|
|
def parse_config(config: Dict[str, Any]) -> Dict[str, Any]:
|
|
return config
|
|
|
|
async def check_event_for_spam(self, event: EventBase) -> Union[bool, str]:
|
|
return False # allow all events
|
|
|
|
async def user_may_invite(
|
|
self,
|
|
inviter_userid: str,
|
|
invitee_userid: str,
|
|
room_id: str,
|
|
) -> bool:
|
|
return True # allow all invites
|
|
|
|
async def user_may_create_room(self, userid: str) -> bool:
|
|
return True # allow all room creations
|
|
|
|
async def user_may_create_room_alias(
|
|
self, userid: str, room_alias: RoomAlias
|
|
) -> bool:
|
|
return True # allow all room aliases
|
|
|
|
async def user_may_publish_room(self, userid: str, room_id: str) -> bool:
|
|
return True # allow publishing of all rooms
|
|
|
|
async def check_media_file_for_spam(
|
|
self, file_wrapper: ReadableFileWrapper, file_info: FileInfo
|
|
) -> bool:
|
|
buf = BytesIO()
|
|
await file_wrapper.write_chunks_to(buf.write)
|
|
|
|
return b"evil" in buf.getvalue()
|
|
|
|
|
|
class SpamCheckerTestCaseLegacy(unittest.HomeserverTestCase):
|
|
servlets = [
|
|
login.register_servlets,
|
|
admin.register_servlets,
|
|
]
|
|
|
|
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
|
|
self.user = self.register_user("user", "pass")
|
|
self.tok = self.login("user", "pass")
|
|
|
|
# Allow for uploading and downloading to/from the media repo
|
|
self.media_repo = hs.get_media_repository_resource()
|
|
self.download_resource = self.media_repo.children[b"download"]
|
|
self.upload_resource = self.media_repo.children[b"upload"]
|
|
|
|
load_legacy_spam_checkers(hs)
|
|
|
|
def default_config(self) -> Dict[str, Any]:
|
|
config = default_config("test")
|
|
|
|
config.update(
|
|
{
|
|
"spam_checker": [
|
|
{
|
|
"module": TestSpamCheckerLegacy.__module__
|
|
+ ".TestSpamCheckerLegacy",
|
|
"config": {},
|
|
}
|
|
]
|
|
}
|
|
)
|
|
|
|
return config
|
|
|
|
def test_upload_innocent(self) -> None:
|
|
"""Attempt to upload some innocent data that should be allowed."""
|
|
self.helper.upload_media(
|
|
self.upload_resource, SMALL_PNG, tok=self.tok, expect_code=200
|
|
)
|
|
|
|
def test_upload_ban(self) -> None:
|
|
"""Attempt to upload some data that includes bytes "evil", which should
|
|
get rejected by the spam checker.
|
|
"""
|
|
|
|
data = b"Some evil data"
|
|
|
|
self.helper.upload_media(
|
|
self.upload_resource, data, tok=self.tok, expect_code=400
|
|
)
|
|
|
|
|
|
EVIL_DATA = b"Some evil data"
|
|
EVIL_DATA_EXPERIMENT = b"Some evil data to trigger the experimental tuple API"
|
|
|
|
|
|
class SpamCheckerTestCase(unittest.HomeserverTestCase):
|
|
servlets = [
|
|
login.register_servlets,
|
|
admin.register_servlets,
|
|
]
|
|
|
|
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
|
|
self.user = self.register_user("user", "pass")
|
|
self.tok = self.login("user", "pass")
|
|
|
|
# Allow for uploading and downloading to/from the media repo
|
|
self.media_repo = hs.get_media_repository_resource()
|
|
self.download_resource = self.media_repo.children[b"download"]
|
|
self.upload_resource = self.media_repo.children[b"upload"]
|
|
|
|
hs.get_module_api().register_spam_checker_callbacks(
|
|
check_media_file_for_spam=self.check_media_file_for_spam
|
|
)
|
|
|
|
async def check_media_file_for_spam(
|
|
self, file_wrapper: ReadableFileWrapper, file_info: FileInfo
|
|
) -> Union[Codes, Literal["NOT_SPAM"], Tuple[Codes, JsonDict]]:
|
|
buf = BytesIO()
|
|
await file_wrapper.write_chunks_to(buf.write)
|
|
|
|
if buf.getvalue() == EVIL_DATA:
|
|
return Codes.FORBIDDEN
|
|
elif buf.getvalue() == EVIL_DATA_EXPERIMENT:
|
|
return (Codes.FORBIDDEN, {})
|
|
else:
|
|
return "NOT_SPAM"
|
|
|
|
def test_upload_innocent(self) -> None:
|
|
"""Attempt to upload some innocent data that should be allowed."""
|
|
self.helper.upload_media(
|
|
self.upload_resource, SMALL_PNG, tok=self.tok, expect_code=200
|
|
)
|
|
|
|
def test_upload_ban(self) -> None:
|
|
"""Attempt to upload some data that includes bytes "evil", which should
|
|
get rejected by the spam checker.
|
|
"""
|
|
|
|
self.helper.upload_media(
|
|
self.upload_resource, EVIL_DATA, tok=self.tok, expect_code=400
|
|
)
|
|
|
|
self.helper.upload_media(
|
|
self.upload_resource,
|
|
EVIL_DATA_EXPERIMENT,
|
|
tok=self.tok,
|
|
expect_code=400,
|
|
)
|