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Revert "Support MSC3916 by adding a federation /download endpoint" (#17325)

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Andrew Morgan 2024-06-18 16:54:19 +01:00 committed by GitHub
parent 97c3d98816
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11 changed files with 25 additions and 659 deletions
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2
changelog.d/17172.feature
View file

@ -1,2 +0,0 @@
Support [MSC3916](https://github.com/matrix-org/matrix-spec-proposals/blob/rav/authentication-for-media/proposals/3916-authentication-for-media.md)
by adding a federation /download endpoint (#17172).

1
changelog.d/17325.misc Normal file
View file

@ -0,0 +1 @@
This is a changelog so tests will run.

24
synapse/federation/transport/server/__init__.py
View file

@ -19,7 +19,6 @@
# [This file includes modifications made by New Vector Limited]
#
#
import inspect
import logging
from typing import TYPE_CHECKING, Dict, Iterable, List, Optional, Tuple, Type
@ -34,7 +33,6 @@ from synapse.federation.transport.server.federation import (
FEDERATION_SERVLET_CLASSES,
FederationAccountStatusServlet,
FederationUnstableClientKeysClaimServlet,
FederationUnstableMediaDownloadServlet,
)
from synapse.http.server import HttpServer, JsonResource
from synapse.http.servlet import (
@ -317,28 +315,6 @@ def register_servlets(
):
continue
if servletclass == FederationUnstableMediaDownloadServlet:
if (
not hs.config.server.enable_media_repo
or not hs.config.experimental.msc3916_authenticated_media_enabled
):
continue
# don't load the endpoint if the storage provider is incompatible
media_repo = hs.get_media_repository()
load_download_endpoint = True
for provider in media_repo.media_storage.storage_providers:
signature = inspect.signature(provider.backend.fetch)
if "federation" not in signature.parameters:
logger.warning(
f"Federation media `/download` endpoint will not be enabled as storage provider {provider.backend} is not compatible with this endpoint."
)
load_download_endpoint = False
break
if not load_download_endpoint:
continue
servletclass(
hs=hs,
authenticator=authenticator,

24
synapse/federation/transport/server/_base.py
View file

@ -360,29 +360,13 @@ class BaseFederationServlet:
"request"
)
return None
if (
func.__self__.__class__.__name__ # type: ignore
== "FederationUnstableMediaDownloadServlet"
):
response = await func(
origin, content, request, *args, **kwargs
)
else:
response = await func(
origin, content, request.args, *args, **kwargs
)
else:
if (
func.__self__.__class__.__name__ # type: ignore
== "FederationUnstableMediaDownloadServlet"
):
response = await func(
origin, content, request, *args, **kwargs
)
else:
response = await func(
origin, content, request.args, *args, **kwargs
)
else:
response = await func(
origin, content, request.args, *args, **kwargs
)
finally:
# if we used the origin's context as the parent, add a new span using
# the servlet span as a parent, so that we have a link

41
synapse/federation/transport/server/federation.py
View file

@ -44,13 +44,10 @@ from synapse.federation.transport.server._base import (
)
from synapse.http.servlet import (
parse_boolean_from_args,
parse_integer,
parse_integer_from_args,
parse_string_from_args,
parse_strings_from_args,
)
from synapse.http.site import SynapseRequest
from synapse.media._base import DEFAULT_MAX_TIMEOUT_MS, MAXIMUM_ALLOWED_MAX_TIMEOUT_MS
from synapse.types import JsonDict
from synapse.util import SYNAPSE_VERSION
from synapse.util.ratelimitutils import FederationRateLimiter
@ -790,43 +787,6 @@ class FederationAccountStatusServlet(BaseFederationServerServlet):
return 200, {"account_statuses": statuses, "failures": failures}
class FederationUnstableMediaDownloadServlet(BaseFederationServerServlet):
"""
Implementation of new federation media `/download` endpoint outlined in MSC3916. Returns
a multipart/form-data response consisting of a JSON object and the requested media
item. This endpoint only returns local media.
"""
PATH = "/media/download/(?P<media_id>[^/]*)"
PREFIX = FEDERATION_UNSTABLE_PREFIX + "/org.matrix.msc3916"
RATELIMIT = True
def __init__(
self,
hs: "HomeServer",
ratelimiter: FederationRateLimiter,
authenticator: Authenticator,
server_name: str,
):
super().__init__(hs, authenticator, ratelimiter, server_name)
self.media_repo = self.hs.get_media_repository()
async def on_GET(
self,
origin: Optional[str],
content: Literal[None],
request: SynapseRequest,
media_id: str,
) -> None:
max_timeout_ms = parse_integer(
request, "timeout_ms", default=DEFAULT_MAX_TIMEOUT_MS
)
max_timeout_ms = min(max_timeout_ms, MAXIMUM_ALLOWED_MAX_TIMEOUT_MS)
await self.media_repo.get_local_media(
request, media_id, None, max_timeout_ms, federation=True
)
FEDERATION_SERVLET_CLASSES: Tuple[Type[BaseFederationServlet], ...] = (
FederationSendServlet,
FederationEventServlet,
@ -858,5 +818,4 @@ FEDERATION_SERVLET_CLASSES: Tuple[Type[BaseFederationServlet], ...] = (
FederationV1SendKnockServlet,
FederationMakeKnockServlet,
FederationAccountStatusServlet,
FederationUnstableMediaDownloadServlet,
)

63
synapse/media/_base.py
View file

@ -25,16 +25,7 @@ import os
import urllib
from abc import ABC, abstractmethod
from types import TracebackType
from typing import (
TYPE_CHECKING,
Awaitable,
Dict,
Generator,
List,
Optional,
Tuple,
Type,
)
from typing import Awaitable, Dict, Generator, List, Optional, Tuple, Type
import attr
@ -48,11 +39,6 @@ from synapse.http.site import SynapseRequest
from synapse.logging.context import make_deferred_yieldable
from synapse.util.stringutils import is_ascii
if TYPE_CHECKING:
from synapse.media.media_storage import MultipartResponder
from synapse.storage.databases.main.media_repository import LocalMedia
logger = logging.getLogger(__name__)
# list all text content types that will have the charset default to UTF-8 when
@ -274,53 +260,6 @@ def _can_encode_filename_as_token(x: str) -> bool:
return True
async def respond_with_multipart_responder(
request: SynapseRequest,
responder: "Optional[MultipartResponder]",
media_info: "LocalMedia",
) -> None:
"""
Responds via a Multipart responder for the federation media `/download` requests
Args:
request: the federation request to respond to
responder: the Multipart responder which will send the response
media_info: metadata about the media item
"""
if not responder:
respond_404(request)
return
# If we have a responder we *must* use it as a context manager.
with responder:
if request._disconnected:
logger.warning(
"Not sending response to request %s, already disconnected.", request
)
return
logger.debug("Responding to media request with responder %s", responder)
if media_info.media_length is not None:
request.setHeader(b"Content-Length", b"%d" % (media_info.media_length,))
request.setHeader(
b"Content-Type", b"multipart/mixed; boundary=%s" % responder.boundary
)
try:
await responder.write_to_consumer(request)
except Exception as e:
# The majority of the time this will be due to the client having gone
# away. Unfortunately, Twisted simply throws a generic exception at us
# in that case.
logger.warning("Failed to write to consumer: %s %s", type(e), e)
# Unregister the producer, if it has one, so Twisted doesn't complain
if request.producer:
request.unregisterProducer()
finish_request(request)
async def respond_with_responder(
request: SynapseRequest,
responder: "Optional[Responder]",

18
synapse/media/media_repository.py
View file

@ -54,11 +54,10 @@ from synapse.media._base import (
ThumbnailInfo,
get_filename_from_headers,
respond_404,
respond_with_multipart_responder,
respond_with_responder,
)
from synapse.media.filepath import MediaFilePaths
from synapse.media.media_storage import MediaStorage, MultipartResponder
from synapse.media.media_storage import MediaStorage
from synapse.media.storage_provider import StorageProviderWrapper
from synapse.media.thumbnailer import Thumbnailer, ThumbnailError
from synapse.media.url_previewer import UrlPreviewer
@ -430,7 +429,6 @@ class MediaRepository:
media_id: str,
name: Optional[str],
max_timeout_ms: int,
federation: bool = False,
) -> None:
"""Responds to requests for local media, if exists, or returns 404.
@ -442,7 +440,6 @@ class MediaRepository:
the filename in the Content-Disposition header of the response.
max_timeout_ms: the maximum number of milliseconds to wait for the
media to be uploaded.
federation: whether the local media being fetched is for a federation request
Returns:
Resolves once a response has successfully been written to request
@ -462,17 +459,10 @@ class MediaRepository:
file_info = FileInfo(None, media_id, url_cache=bool(url_cache))
responder = await self.media_storage.fetch_media(
file_info, media_info, federation
responder = await self.media_storage.fetch_media(file_info)
await respond_with_responder(
request, responder, media_type, media_length, upload_name
)
if federation:
# this really should be a Multipart responder but just in case
assert isinstance(responder, MultipartResponder)
await respond_with_multipart_responder(request, responder, media_info)
else:
await respond_with_responder(
request, responder, media_type, media_length, upload_name
)
async def get_remote_media(
self,

223
synapse/media/media_storage.py
View file

@ -19,12 +19,9 @@
#
#
import contextlib
import json
import logging
import os
import shutil
from contextlib import closing
from io import BytesIO
from types import TracebackType
from typing import (
IO,
@ -33,19 +30,14 @@ from typing import (
AsyncIterator,
BinaryIO,
Callable,
List,
Optional,
Sequence,
Tuple,
Type,
Union,
)
from uuid import uuid4
import attr
from zope.interface import implementer
from twisted.internet import defer, interfaces
from twisted.internet.defer import Deferred
from twisted.internet.interfaces import IConsumer
from twisted.protocols.basic import FileSender
@ -56,19 +48,15 @@ from synapse.logging.opentracing import start_active_span, trace, trace_with_opn
from synapse.util import Clock
from synapse.util.file_consumer import BackgroundFileConsumer
from ..storage.databases.main.media_repository import LocalMedia
from ..types import JsonDict
from ._base import FileInfo, Responder
from .filepath import MediaFilePaths
if TYPE_CHECKING:
from synapse.media.storage_provider import StorageProviderWrapper
from synapse.media.storage_provider import StorageProvider
from synapse.server import HomeServer
logger = logging.getLogger(__name__)
CRLF = b"\r\n"
class MediaStorage:
"""Responsible for storing/fetching files from local sources.
@ -85,7 +73,7 @@ class MediaStorage:
hs: "HomeServer",
local_media_directory: str,
filepaths: MediaFilePaths,
storage_providers: Sequence["StorageProviderWrapper"],
storage_providers: Sequence["StorageProvider"],
):
self.hs = hs
self.reactor = hs.get_reactor()
@ -181,23 +169,15 @@ class MediaStorage:
raise e from None
async def fetch_media(
self,
file_info: FileInfo,
media_info: Optional[LocalMedia] = None,
federation: bool = False,
) -> Optional[Responder]:
async def fetch_media(self, file_info: FileInfo) -> Optional[Responder]:
"""Attempts to fetch media described by file_info from the local cache
and configured storage providers.
Args:
file_info: Metadata about the media file
media_info: Metadata about the media item
federation: Whether this file is being fetched for a federation request
file_info
Returns:
If the file was found returns a Responder (a Multipart Responder if the requested
file is for the federation /download endpoint), otherwise None.
Returns a Responder if the file was found, otherwise None.
"""
paths = [self._file_info_to_path(file_info)]
@ -217,19 +197,12 @@ class MediaStorage:
local_path = os.path.join(self.local_media_directory, path)
if os.path.exists(local_path):
logger.debug("responding with local file %s", local_path)
if federation:
assert media_info is not None
boundary = uuid4().hex.encode("ascii")
return MultipartResponder(
open(local_path, "rb"), media_info, boundary
)
else:
return FileResponder(open(local_path, "rb"))
return FileResponder(open(local_path, "rb"))
logger.debug("local file %s did not exist", local_path)
for provider in self.storage_providers:
for path in paths:
res: Any = await provider.fetch(path, file_info, media_info, federation)
res: Any = await provider.fetch(path, file_info)
if res:
logger.debug("Streaming %s from %s", path, provider)
return res
@ -343,7 +316,7 @@ class FileResponder(Responder):
"""Wraps an open file that can be sent to a request.
Args:
open_file: A file like object to be streamed to the client,
open_file: A file like object to be streamed ot the client,
is closed when finished streaming.
"""
@ -364,38 +337,6 @@ class FileResponder(Responder):
self.open_file.close()
class MultipartResponder(Responder):
"""Wraps an open file, formats the response according to MSC3916 and sends it to a
federation request.
Args:
open_file: A file like object to be streamed to the client,
is closed when finished streaming.
media_info: metadata about the media item
boundary: bytes to use for the multipart response boundary
"""
def __init__(self, open_file: IO, media_info: LocalMedia, boundary: bytes) -> None:
self.open_file = open_file
self.media_info = media_info
self.boundary = boundary
def write_to_consumer(self, consumer: IConsumer) -> Deferred:
return make_deferred_yieldable(
MultipartFileSender().beginFileTransfer(
self.open_file, consumer, self.media_info.media_type, {}, self.boundary
)
)
def __exit__(
self,
exc_type: Optional[Type[BaseException]],
exc_val: Optional[BaseException],
exc_tb: Optional[TracebackType],
) -> None:
self.open_file.close()
class SpamMediaException(NotFoundError):
"""The media was blocked by a spam checker, so we simply 404 the request (in
the same way as if it was quarantined).
@ -429,151 +370,3 @@ class ReadableFileWrapper:
# We yield to the reactor by sleeping for 0 seconds.
await self.clock.sleep(0)
@implementer(interfaces.IProducer)
class MultipartFileSender:
"""
A producer that sends the contents of a file to a federation request in the format
outlined in MSC3916 - a multipart/format-data response where the first field is a
JSON object and the second is the requested file.
This is a slight re-writing of twisted.protocols.basic.FileSender to achieve the format
outlined above.
"""
CHUNK_SIZE = 2**14
lastSent = ""
deferred: Optional[defer.Deferred] = None
def beginFileTransfer(
self,
file: IO,
consumer: IConsumer,
file_content_type: str,
json_object: JsonDict,
boundary: bytes,
) -> Deferred:
"""
Begin transferring a file
Args:
file: The file object to read data from
consumer: The synapse request to write the data to
file_content_type: The content-type of the file
json_object: The JSON object to write to the first field of the response
boundary: bytes to be used as the multipart/form-data boundary
Returns: A deferred whose callback will be invoked when the file has
been completely written to the consumer. The last byte written to the
consumer is passed to the callback.
"""
self.file: Optional[IO] = file
self.consumer = consumer
self.json_field = json_object
self.json_field_written = False
self.content_type_written = False
self.file_content_type = file_content_type
self.boundary = boundary
self.deferred: Deferred = defer.Deferred()
self.consumer.registerProducer(self, False)
# while it's not entirely clear why this assignment is necessary, it mirrors
# the behavior in FileSender.beginFileTransfer and thus is preserved here
deferred = self.deferred
return deferred
def resumeProducing(self) -> None:
# write the first field, which will always be a json field
if not self.json_field_written:
self.consumer.write(CRLF + b"--" + self.boundary + CRLF)
content_type = Header(b"Content-Type", b"application/json")
self.consumer.write(bytes(content_type) + CRLF)
json_field = json.dumps(self.json_field)
json_bytes = json_field.encode("utf-8")
self.consumer.write(json_bytes)
self.consumer.write(CRLF + b"--" + self.boundary + CRLF)
self.json_field_written = True
chunk: Any = ""
if self.file:
# if we haven't written the content type yet, do so
if not self.content_type_written:
type = self.file_content_type.encode("utf-8")
content_type = Header(b"Content-Type", type)
self.consumer.write(bytes(content_type) + CRLF)
self.content_type_written = True
chunk = self.file.read(self.CHUNK_SIZE)
if not chunk:
# we've reached the end of the file
self.consumer.write(CRLF + b"--" + self.boundary + b"--" + CRLF)
self.file = None
self.consumer.unregisterProducer()
if self.deferred:
self.deferred.callback(self.lastSent)
self.deferred = None
return
self.consumer.write(chunk)
self.lastSent = chunk[-1:]
def pauseProducing(self) -> None:
pass
def stopProducing(self) -> None:
if self.deferred:
self.deferred.errback(Exception("Consumer asked us to stop producing"))
self.deferred = None
class Header:
"""
`Header` This class is a tiny wrapper that produces
request headers. We can't use standard python header
class because it encodes unicode fields using =? bla bla ?=
encoding, which is correct, but no one in HTTP world expects
that, everyone wants utf-8 raw bytes. (stolen from treq.multipart)
"""
def __init__(
self,
name: bytes,
value: Any,
params: Optional[List[Tuple[Any, Any]]] = None,
):
self.name = name
self.value = value
self.params = params or []
def add_param(self, name: Any, value: Any) -> None:
self.params.append((name, value))
def __bytes__(self) -> bytes:
with closing(BytesIO()) as h:
h.write(self.name + b": " + escape(self.value).encode("us-ascii"))
if self.params:
for name, val in self.params:
h.write(b"; ")
h.write(escape(name).encode("us-ascii"))
h.write(b"=")
h.write(b'"' + escape(val).encode("utf-8") + b'"')
h.seek(0)
return h.read()
def escape(value: Union[str, bytes]) -> str:
"""
This function prevents header values from corrupting the request,
a newline in the file name parameter makes form-data request unreadable
for a majority of parsers. (stolen from treq.multipart)
"""
if isinstance(value, bytes):
value = value.decode("utf-8")
return value.replace("\r", "").replace("\n", "").replace('"', '\\"')

40
synapse/media/storage_provider.py
View file

@ -24,16 +24,14 @@ import logging
import os
import shutil
from typing import TYPE_CHECKING, Callable, Optional
from uuid import uuid4
from synapse.config._base import Config
from synapse.logging.context import defer_to_thread, run_in_background
from synapse.logging.opentracing import start_active_span, trace_with_opname
from synapse.util.async_helpers import maybe_awaitable
from ..storage.databases.main.media_repository import LocalMedia
from ._base import FileInfo, Responder
from .media_storage import FileResponder, MultipartResponder
from .media_storage import FileResponder
logger = logging.getLogger(__name__)
@ -57,21 +55,13 @@ class StorageProvider(metaclass=abc.ABCMeta):
"""
@abc.abstractmethod
async def fetch(
self,
path: str,
file_info: FileInfo,
media_info: Optional[LocalMedia] = None,
federation: bool = False,
) -> Optional[Responder]:
async def fetch(self, path: str, file_info: FileInfo) -> Optional[Responder]:
"""Attempt to fetch the file described by file_info and stream it
into writer.
Args:
path: Relative path of file in local cache
file_info: The metadata of the file.
media_info: metadata of the media item
federation: Whether the requested media is for a federation request
Returns:
Returns a Responder if the provider has the file, otherwise returns None.
@ -134,13 +124,7 @@ class StorageProviderWrapper(StorageProvider):
run_in_background(store)
@trace_with_opname("StorageProviderWrapper.fetch")
async def fetch(
self,
path: str,
file_info: FileInfo,
media_info: Optional[LocalMedia] = None,
federation: bool = False,
) -> Optional[Responder]:
async def fetch(self, path: str, file_info: FileInfo) -> Optional[Responder]:
if file_info.url_cache:
# Files in the URL preview cache definitely aren't stored here,
# so avoid any potentially slow I/O or network access.
@ -148,9 +132,7 @@ class StorageProviderWrapper(StorageProvider):
# store_file is supposed to return an Awaitable, but guard
# against improper implementations.
return await maybe_awaitable(
self.backend.fetch(path, file_info, media_info, federation)
)
return await maybe_awaitable(self.backend.fetch(path, file_info))
class FileStorageProviderBackend(StorageProvider):
@ -190,23 +172,11 @@ class FileStorageProviderBackend(StorageProvider):
)
@trace_with_opname("FileStorageProviderBackend.fetch")
async def fetch(
self,
path: str,
file_info: FileInfo,
media_info: Optional[LocalMedia] = None,
federation: bool = False,
) -> Optional[Responder]:
async def fetch(self, path: str, file_info: FileInfo) -> Optional[Responder]:
"""See StorageProvider.fetch"""
backup_fname = os.path.join(self.base_directory, path)
if os.path.isfile(backup_fname):
if federation:
assert media_info is not None
boundary = uuid4().hex.encode("ascii")
return MultipartResponder(
open(backup_fname, "rb"), media_info, boundary
)
return FileResponder(open(backup_fname, "rb"))
return None

234
tests/federation/test_federation_media.py
View file

@ -1,234 +0,0 @@
#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright (C) 2024 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
import io
import os
import shutil
import tempfile
from typing import Optional
from twisted.test.proto_helpers import MemoryReactor
from synapse.media._base import FileInfo, Responder
from synapse.media.filepath import MediaFilePaths
from synapse.media.media_storage import MediaStorage
from synapse.media.storage_provider import (
FileStorageProviderBackend,
StorageProviderWrapper,
)
from synapse.server import HomeServer
from synapse.storage.databases.main.media_repository import LocalMedia
from synapse.types import JsonDict, UserID
from synapse.util import Clock
from tests import unittest
from tests.test_utils import SMALL_PNG
from tests.unittest import override_config
class FederationUnstableMediaDownloadsTest(unittest.FederatingHomeserverTestCase):
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
super().prepare(reactor, clock, hs)
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 = [
StorageProviderWrapper(
FileStorageProviderBackend(hs, self.secondary_base_path),
store_local=True,
store_remote=False,
store_synchronous=True,
)
]
self.filepaths = MediaFilePaths(self.primary_base_path)
self.media_storage = MediaStorage(
hs, self.primary_base_path, self.filepaths, storage_providers
)
self.media_repo = hs.get_media_repository()
@override_config(
{"experimental_features": {"msc3916_authenticated_media_enabled": True}}
)
def test_file_download(self) -> None:
content = io.BytesIO(b"file_to_stream")
content_uri = self.get_success(
self.media_repo.create_content(
"text/plain",
"test_upload",
content,
46,
UserID.from_string("@user_id:whatever.org"),
)
)
# test with a text file
channel = self.make_signed_federation_request(
"GET",
f"/_matrix/federation/unstable/org.matrix.msc3916/media/download/{content_uri.media_id}",
)
self.pump()
self.assertEqual(200, channel.code)
content_type = channel.headers.getRawHeaders("content-type")
assert content_type is not None
assert "multipart/mixed" in content_type[0]
assert "boundary" in content_type[0]
# extract boundary
boundary = content_type[0].split("boundary=")[1]
# split on boundary and check that json field and expected value exist
stripped = channel.text_body.split("\r\n" + "--" + boundary)
# TODO: the json object expected will change once MSC3911 is implemented, currently
# {} is returned for all requests as a placeholder (per MSC3196)
found_json = any(
"\r\nContent-Type: application/json\r\n{}" in field for field in stripped
)
self.assertTrue(found_json)
# check that text file and expected value exist
found_file = any(
"\r\nContent-Type: text/plain\r\nfile_to_stream" in field
for field in stripped
)
self.assertTrue(found_file)
content = io.BytesIO(SMALL_PNG)
content_uri = self.get_success(
self.media_repo.create_content(
"image/png",
"test_png_upload",
content,
67,
UserID.from_string("@user_id:whatever.org"),
)
)
# test with an image file
channel = self.make_signed_federation_request(
"GET",
f"/_matrix/federation/unstable/org.matrix.msc3916/media/download/{content_uri.media_id}",
)
self.pump()
self.assertEqual(200, channel.code)
content_type = channel.headers.getRawHeaders("content-type")
assert content_type is not None
assert "multipart/mixed" in content_type[0]
assert "boundary" in content_type[0]
# extract boundary
boundary = content_type[0].split("boundary=")[1]
# split on boundary and check that json field and expected value exist
body = channel.result.get("body")
assert body is not None
stripped_bytes = body.split(b"\r\n" + b"--" + boundary.encode("utf-8"))
found_json = any(
b"\r\nContent-Type: application/json\r\n{}" in field
for field in stripped_bytes
)
self.assertTrue(found_json)
# check that png file exists and matches what was uploaded
found_file = any(SMALL_PNG in field for field in stripped_bytes)
self.assertTrue(found_file)
@override_config(
{"experimental_features": {"msc3916_authenticated_media_enabled": False}}
)
def test_disable_config(self) -> None:
content = io.BytesIO(b"file_to_stream")
content_uri = self.get_success(
self.media_repo.create_content(
"text/plain",
"test_upload",
content,
46,
UserID.from_string("@user_id:whatever.org"),
)
)
channel = self.make_signed_federation_request(
"GET",
f"/_matrix/federation/unstable/org.matrix.msc3916/media/download/{content_uri.media_id}",
)
self.pump()
self.assertEqual(404, channel.code)
self.assertEqual(channel.json_body.get("errcode"), "M_UNRECOGNIZED")
class FakeFileStorageProviderBackend:
"""
Fake storage provider stub with incompatible `fetch` signature for testing
"""
def __init__(self, hs: "HomeServer", config: str):
self.hs = hs
self.cache_directory = hs.config.media.media_store_path
self.base_directory = config
def __str__(self) -> str:
return "FakeFileStorageProviderBackend[%s]" % (self.base_directory,)
async def fetch(
self, path: str, file_info: FileInfo, media_info: Optional[LocalMedia] = None
) -> Optional[Responder]:
pass
TEST_DIR = tempfile.mkdtemp(prefix="synapse-tests-")
class FederationUnstableMediaEndpointCompatibilityTest(
unittest.FederatingHomeserverTestCase
):
def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
super().prepare(reactor, clock, hs)
self.test_dir = TEST_DIR
self.addCleanup(shutil.rmtree, self.test_dir)
self.media_repo = hs.get_media_repository()
def default_config(self) -> JsonDict:
config = super().default_config()
primary_base_path = os.path.join(TEST_DIR, "primary")
config["media_storage_providers"] = [
{
"module": "tests.federation.test_federation_media.FakeFileStorageProviderBackend",
"store_local": "True",
"store_remote": "False",
"store_synchronous": "False",
"config": {"directory": primary_base_path},
}
]
return config
@override_config(
{"experimental_features": {"msc3916_authenticated_media_enabled": True}}
)
def test_incompatible_storage_provider_fails_to_load_endpoint(self) -> None:
channel = self.make_signed_federation_request(
"GET",
"/_matrix/federation/unstable/org.matrix.msc3916/media/download/xyz",
)
self.pump()
self.assertEqual(404, channel.code)
self.assertEqual(channel.json_body.get("errcode"), "M_UNRECOGNIZED")

14
tests/media/test_media_storage.py
View file

@ -49,10 +49,7 @@ from synapse.logging.context import make_deferred_yieldable
from synapse.media._base import FileInfo, ThumbnailInfo
from synapse.media.filepath import MediaFilePaths
from synapse.media.media_storage import MediaStorage, ReadableFileWrapper
from synapse.media.storage_provider import (
FileStorageProviderBackend,
StorageProviderWrapper,
)
from synapse.media.storage_provider import FileStorageProviderBackend
from synapse.media.thumbnailer import ThumbnailProvider
from synapse.module_api import ModuleApi
from synapse.module_api.callbacks.spamchecker_callbacks import load_legacy_spam_checkers
@ -81,14 +78,7 @@ class MediaStorageTests(unittest.HomeserverTestCase):
hs.config.media.media_store_path = self.primary_base_path
storage_providers = [
StorageProviderWrapper(
FileStorageProviderBackend(hs, self.secondary_base_path),
store_local=True,
store_remote=False,
store_synchronous=True,
)
]
storage_providers = [FileStorageProviderBackend(hs, self.secondary_base_path)]
self.filepaths = MediaFilePaths(self.primary_base_path)
self.media_storage = MediaStorage(