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Refactor media modules. (#15146)

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* Removes the `v1` directory from `test.rest.media.v1`.
* Moves the non-REST code from `synapse.rest.media.v1` to `synapse.media`.
* Flatten the `v1` directory from `synapse.rest.media`,  but leave compatiblity
  with 3rd party media repositories and spam checkers.
This commit is contained in:
Patrick Cloke 2023-02-27 08:26:05 -05:00 committed by GitHub
parent 3f2ef205e2
commit 4fc8875876
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GPG key ID: 4AEE18F83AFDEB23
31 changed files with 1190 additions and 1123 deletions
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1
changelog.d/15146.misc Normal file
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@ -0,0 +1 @@
Refactor the media modules.

2
synapse/_scripts/move_remote_media_to_new_store.py
View file

@ -37,7 +37,7 @@ import os
import shutil
import sys
from synapse.rest.media.v1.filepath import MediaFilePaths
from synapse.media.filepath import MediaFilePaths
logger = logging.getLogger()

12
synapse/config/repository.py
View file

@ -178,11 +178,13 @@ class ContentRepositoryConfig(Config):
for i, provider_config in enumerate(storage_providers):
# We special case the module "file_system" so as not to need to
# expose FileStorageProviderBackend
if provider_config["module"] == "file_system":
provider_config["module"] = (
"synapse.rest.media.v1.storage_provider"
".FileStorageProviderBackend"
)
if (
provider_config["module"] == "file_system"
or provider_config["module"] == "synapse.rest.media.v1.storage_provider"
):
provider_config[
"module"
] = "synapse.media.storage_provider.FileStorageProviderBackend"
provider_class, parsed_config = load_module(
provider_config, ("media_storage_providers", "<item %i>" % i)

4
synapse/events/spamcheck.py
View file

@ -33,8 +33,8 @@ from typing_extensions import Literal
import synapse
from synapse.api.errors import Codes
from synapse.logging.opentracing import trace
from synapse.rest.media.v1._base import FileInfo
from synapse.rest.media.v1.media_storage import ReadableFileWrapper
from synapse.media._base import FileInfo
from synapse.media.media_storage import ReadableFileWrapper
from synapse.spam_checker_api import RegistrationBehaviour
from synapse.types import JsonDict, RoomAlias, UserProfile
from synapse.util.async_helpers import delay_cancellation, maybe_awaitable

479
synapse/media/_base.py Normal file
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@ -0,0 +1,479 @@
# Copyright 2014-2016 OpenMarket Ltd
# Copyright 2019-2021 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 logging
import os
import urllib
from abc import ABC, abstractmethod
from types import TracebackType
from typing import Awaitable, Dict, Generator, List, Optional, Tuple, Type
import attr
from twisted.internet.interfaces import IConsumer
from twisted.protocols.basic import FileSender
from twisted.web.server import Request
from synapse.api.errors import Codes, SynapseError, cs_error
from synapse.http.server import finish_request, respond_with_json
from synapse.http.site import SynapseRequest
from synapse.logging.context import make_deferred_yieldable
from synapse.util.stringutils import is_ascii, parse_and_validate_server_name
logger = logging.getLogger(__name__)
# list all text content types that will have the charset default to UTF-8 when
# none is given
TEXT_CONTENT_TYPES = [
"text/css",
"text/csv",
"text/html",
"text/calendar",
"text/plain",
"text/javascript",
"application/json",
"application/ld+json",
"application/rtf",
"image/svg+xml",
"text/xml",
]
def parse_media_id(request: Request) -> Tuple[str, str, Optional[str]]:
"""Parses the server name, media ID and optional file name from the request URI
Also performs some rough validation on the server name.
Args:
request: The `Request`.
Returns:
A tuple containing the parsed server name, media ID and optional file name.
Raises:
SynapseError(404): if parsing or validation fail for any reason
"""
try:
# The type on postpath seems incorrect in Twisted 21.2.0.
postpath: List[bytes] = request.postpath # type: ignore
assert postpath
# This allows users to append e.g. /test.png to the URL. Useful for
# clients that parse the URL to see content type.
server_name_bytes, media_id_bytes = postpath[:2]
server_name = server_name_bytes.decode("utf-8")
media_id = media_id_bytes.decode("utf8")
# Validate the server name, raising if invalid
parse_and_validate_server_name(server_name)
file_name = None
if len(postpath) > 2:
try:
file_name = urllib.parse.unquote(postpath[-1].decode("utf-8"))
except UnicodeDecodeError:
pass
return server_name, media_id, file_name
except Exception:
raise SynapseError(
404, "Invalid media id token %r" % (request.postpath,), Codes.UNKNOWN
)
def respond_404(request: SynapseRequest) -> None:
respond_with_json(
request,
404,
cs_error("Not found %r" % (request.postpath,), code=Codes.NOT_FOUND),
send_cors=True,
)
async def respond_with_file(
request: SynapseRequest,
media_type: str,
file_path: str,
file_size: Optional[int] = None,
upload_name: Optional[str] = None,
) -> None:
logger.debug("Responding with %r", file_path)
if os.path.isfile(file_path):
if file_size is None:
stat = os.stat(file_path)
file_size = stat.st_size
add_file_headers(request, media_type, file_size, upload_name)
with open(file_path, "rb") as f:
await make_deferred_yieldable(FileSender().beginFileTransfer(f, request))
finish_request(request)
else:
respond_404(request)
def add_file_headers(
request: Request,
media_type: str,
file_size: Optional[int],
upload_name: Optional[str],
) -> None:
"""Adds the correct response headers in preparation for responding with the
media.
Args:
request
media_type: The media/content type.
file_size: Size in bytes of the media, if known.
upload_name: The name of the requested file, if any.
"""
def _quote(x: str) -> str:
return urllib.parse.quote(x.encode("utf-8"))
# Default to a UTF-8 charset for text content types.
# ex, uses UTF-8 for 'text/css' but not 'text/css; charset=UTF-16'
if media_type.lower() in TEXT_CONTENT_TYPES:
content_type = media_type + "; charset=UTF-8"
else:
content_type = media_type
request.setHeader(b"Content-Type", content_type.encode("UTF-8"))
if upload_name:
# RFC6266 section 4.1 [1] defines both `filename` and `filename*`.
#
# `filename` is defined to be a `value`, which is defined by RFC2616
# section 3.6 [2] to be a `token` or a `quoted-string`, where a `token`
# is (essentially) a single US-ASCII word, and a `quoted-string` is a
# US-ASCII string surrounded by double-quotes, using backslash as an
# escape character. Note that %-encoding is *not* permitted.
#
# `filename*` is defined to be an `ext-value`, which is defined in
# RFC5987 section 3.2.1 [3] to be `charset "'" [ language ] "'" value-chars`,
# where `value-chars` is essentially a %-encoded string in the given charset.
#
# [1]: https://tools.ietf.org/html/rfc6266#section-4.1
# [2]: https://tools.ietf.org/html/rfc2616#section-3.6
# [3]: https://tools.ietf.org/html/rfc5987#section-3.2.1
# We avoid the quoted-string version of `filename`, because (a) synapse didn't
# correctly interpret those as of 0.99.2 and (b) they are a bit of a pain and we
# may as well just do the filename* version.
if _can_encode_filename_as_token(upload_name):
disposition = "inline; filename=%s" % (upload_name,)
else:
disposition = "inline; filename*=utf-8''%s" % (_quote(upload_name),)
request.setHeader(b"Content-Disposition", disposition.encode("ascii"))
# cache for at least a day.
# XXX: we might want to turn this off for data we don't want to
# recommend caching as it's sensitive or private - or at least
# select private. don't bother setting Expires as all our
# clients are smart enough to be happy with Cache-Control
request.setHeader(b"Cache-Control", b"public,max-age=86400,s-maxage=86400")
if file_size is not None:
request.setHeader(b"Content-Length", b"%d" % (file_size,))
# Tell web crawlers to not index, archive, or follow links in media. This
# should help to prevent things in the media repo from showing up in web
# search results.
request.setHeader(b"X-Robots-Tag", "noindex, nofollow, noarchive, noimageindex")
# separators as defined in RFC2616. SP and HT are handled separately.
# see _can_encode_filename_as_token.
_FILENAME_SEPARATOR_CHARS = {
"(",
")",
"<",
">",
"@",
",",
";",
":",
"\\",
'"',
"/",
"[",
"]",
"?",
"=",
"{",
"}",
}
def _can_encode_filename_as_token(x: str) -> bool:
for c in x:
# from RFC2616:
#
# token = 1*<any CHAR except CTLs or separators>
#
# separators = "(" | ")" | "<" | ">" | "@"
# | "," | ";" | ":" | "\" | <">
# | "/" | "[" | "]" | "?" | "="
# | "{" | "}" | SP | HT
#
# CHAR = <any US-ASCII character (octets 0 - 127)>
#
# CTL = <any US-ASCII control character
# (octets 0 - 31) and DEL (127)>
#
if ord(c) >= 127 or ord(c) <= 32 or c in _FILENAME_SEPARATOR_CHARS:
return False
return True
async def respond_with_responder(
request: SynapseRequest,
responder: "Optional[Responder]",
media_type: str,
file_size: Optional[int],
upload_name: Optional[str] = None,
) -> None:
"""Responds to the request with given responder. If responder is None then
returns 404.
Args:
request
responder
media_type: The media/content type.
file_size: Size in bytes of the media. If not known it should be None
upload_name: The name of the requested file, if any.
"""
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)
add_file_headers(request, media_type, file_size, upload_name)
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)
class Responder(ABC):
"""Represents a response that can be streamed to the requester.
Responder is a context manager which *must* be used, so that any resources
held can be cleaned up.
"""
@abstractmethod
def write_to_consumer(self, consumer: IConsumer) -> Awaitable:
"""Stream response into consumer
Args:
consumer: The consumer to stream into.
Returns:
Resolves once the response has finished being written
"""
raise NotImplementedError()
def __enter__(self) -> None: # noqa: B027
pass
def __exit__( # noqa: B027
self,
exc_type: Optional[Type[BaseException]],
exc_val: Optional[BaseException],
exc_tb: Optional[TracebackType],
) -> None:
pass
@attr.s(slots=True, frozen=True, auto_attribs=True)
class ThumbnailInfo:
"""Details about a generated thumbnail."""
width: int
height: int
method: str
# Content type of thumbnail, e.g. image/png
type: str
# The size of the media file, in bytes.
length: Optional[int] = None
@attr.s(slots=True, frozen=True, auto_attribs=True)
class FileInfo:
"""Details about a requested/uploaded file."""
# The server name where the media originated from, or None if local.
server_name: Optional[str]
# The local ID of the file. For local files this is the same as the media_id
file_id: str
# If the file is for the url preview cache
url_cache: bool = False
# Whether the file is a thumbnail or not.
thumbnail: Optional[ThumbnailInfo] = None
# The below properties exist to maintain compatibility with third-party modules.
@property
def thumbnail_width(self) -> Optional[int]:
if not self.thumbnail:
return None
return self.thumbnail.width
@property
def thumbnail_height(self) -> Optional[int]:
if not self.thumbnail:
return None
return self.thumbnail.height
@property
def thumbnail_method(self) -> Optional[str]:
if not self.thumbnail:
return None
return self.thumbnail.method
@property
def thumbnail_type(self) -> Optional[str]:
if not self.thumbnail:
return None
return self.thumbnail.type
@property
def thumbnail_length(self) -> Optional[int]:
if not self.thumbnail:
return None
return self.thumbnail.length
def get_filename_from_headers(headers: Dict[bytes, List[bytes]]) -> Optional[str]:
"""
Get the filename of the downloaded file by inspecting the
Content-Disposition HTTP header.
Args:
headers: The HTTP request headers.
Returns:
The filename, or None.
"""
content_disposition = headers.get(b"Content-Disposition", [b""])
# No header, bail out.
if not content_disposition[0]:
return None
_, params = _parse_header(content_disposition[0])
upload_name = None
# First check if there is a valid UTF-8 filename
upload_name_utf8 = params.get(b"filename*", None)
if upload_name_utf8:
if upload_name_utf8.lower().startswith(b"utf-8''"):
upload_name_utf8 = upload_name_utf8[7:]
# We have a filename*= section. This MUST be ASCII, and any UTF-8
# bytes are %-quoted.
try:
# Once it is decoded, we can then unquote the %-encoded
# parts strictly into a unicode string.
upload_name = urllib.parse.unquote(
upload_name_utf8.decode("ascii"), errors="strict"
)
except UnicodeDecodeError:
# Incorrect UTF-8.
pass
# If there isn't check for an ascii name.
if not upload_name:
upload_name_ascii = params.get(b"filename", None)
if upload_name_ascii and is_ascii(upload_name_ascii):
upload_name = upload_name_ascii.decode("ascii")
# This may be None here, indicating we did not find a matching name.
return upload_name
def _parse_header(line: bytes) -> Tuple[bytes, Dict[bytes, bytes]]:
"""Parse a Content-type like header.
Cargo-culted from `cgi`, but works on bytes rather than strings.
Args:
line: header to be parsed
Returns:
The main content-type, followed by the parameter dictionary
"""
parts = _parseparam(b";" + line)
key = next(parts)
pdict = {}
for p in parts:
i = p.find(b"=")
if i >= 0:
name = p[:i].strip().lower()
value = p[i + 1 :].strip()
# strip double-quotes
if len(value) >= 2 and value[0:1] == value[-1:] == b'"':
value = value[1:-1]
value = value.replace(b"\\\\", b"\\").replace(b'\\"', b'"')
pdict[name] = value
return key, pdict
def _parseparam(s: bytes) -> Generator[bytes, None, None]:
"""Generator which splits the input on ;, respecting double-quoted sequences
Cargo-culted from `cgi`, but works on bytes rather than strings.
Args:
s: header to be parsed
Returns:
The split input
"""
while s[:1] == b";":
s = s[1:]
# look for the next ;
end = s.find(b";")
# if there is an odd number of " marks between here and the next ;, skip to the
# next ; instead
while end > 0 and (s.count(b'"', 0, end) - s.count(b'\\"', 0, end)) % 2:
end = s.find(b";", end + 1)
if end < 0:
end = len(s)
f = s[:end]
yield f.strip()
s = s[end:]

0
synapse/rest/media/v1/filepath.py → synapse/media/filepath.py
View file

94
synapse/rest/media/v1/media_repository.py → synapse/media/media_repository.py
View file

@ -32,18 +32,10 @@ from synapse.api.errors import (
RequestSendFailed,
SynapseError,
)
from synapse.config._base import ConfigError
from synapse.config.repository import ThumbnailRequirement
from synapse.http.server import UnrecognizedRequestResource
from synapse.http.site import SynapseRequest
from synapse.logging.context import defer_to_thread
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.types import UserID
from synapse.util.async_helpers import Linearizer
from synapse.util.retryutils import NotRetryingDestination
from synapse.util.stringutils import random_string
from ._base import (
from synapse.media._base import (
FileInfo,
Responder,
ThumbnailInfo,
@ -51,15 +43,15 @@ from ._base import (
respond_404,
respond_with_responder,
)
from .config_resource import MediaConfigResource
from .download_resource import DownloadResource
from .filepath import MediaFilePaths
from .media_storage import MediaStorage
from .preview_url_resource import PreviewUrlResource
from .storage_provider import StorageProviderWrapper
from .thumbnail_resource import ThumbnailResource
from .thumbnailer import Thumbnailer, ThumbnailError
from .upload_resource import UploadResource
from synapse.media.filepath import MediaFilePaths
from synapse.media.media_storage import MediaStorage
from synapse.media.storage_provider import StorageProviderWrapper
from synapse.media.thumbnailer import Thumbnailer, ThumbnailError
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.types import UserID
from synapse.util.async_helpers import Linearizer
from synapse.util.retryutils import NotRetryingDestination
from synapse.util.stringutils import random_string
if TYPE_CHECKING:
from synapse.server import HomeServer
@ -1044,69 +1036,3 @@ class MediaRepository:
removed_media.append(media_id)
return removed_media, len(removed_media)
class MediaRepositoryResource(UnrecognizedRequestResource):
"""File uploading and downloading.
Uploads are POSTed to a resource which returns a token which is used to GET
the download::
=> POST /_matrix/media/r0/upload HTTP/1.1
Content-Type: <media-type>
Content-Length: <content-length>
<media>
<= HTTP/1.1 200 OK
Content-Type: application/json
{ "content_uri": "mxc://<server-name>/<media-id>" }
=> GET /_matrix/media/r0/download/<server-name>/<media-id> HTTP/1.1
<= HTTP/1.1 200 OK
Content-Type: <media-type>
Content-Disposition: attachment;filename=<upload-filename>
<media>
Clients can get thumbnails by supplying a desired width and height and
thumbnailing method::
=> GET /_matrix/media/r0/thumbnail/<server_name>
/<media-id>?width=<w>&height=<h>&method=<m> HTTP/1.1
<= HTTP/1.1 200 OK
Content-Type: image/jpeg or image/png
<thumbnail>
The thumbnail methods are "crop" and "scale". "scale" tries to return an
image where either the width or the height is smaller than the requested
size. The client should then scale and letterbox the image if it needs to
fit within a given rectangle. "crop" tries to return an image where the
width and height are close to the requested size and the aspect matches
the requested size. The client should scale the image if it needs to fit
within a given rectangle.
"""
def __init__(self, hs: "HomeServer"):
# If we're not configured to use it, raise if we somehow got here.
if not hs.config.media.can_load_media_repo:
raise ConfigError("Synapse is not configured to use a media repo.")
super().__init__()
media_repo = hs.get_media_repository()
self.putChild(b"upload", UploadResource(hs, media_repo))
self.putChild(b"download", DownloadResource(hs, media_repo))
self.putChild(
b"thumbnail", ThumbnailResource(hs, media_repo, media_repo.media_storage)
)
if hs.config.media.url_preview_enabled:
self.putChild(
b"preview_url",
PreviewUrlResource(hs, media_repo, media_repo.media_storage),
)
self.putChild(b"config", MediaConfigResource(hs))

374
synapse/media/media_storage.py Normal file
View file

@ -0,0 +1,374 @@
# 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 contextlib
import logging
import os
import shutil
from types import TracebackType
from typing import (
IO,
TYPE_CHECKING,
Any,
Awaitable,
BinaryIO,
Callable,
Generator,
Optional,
Sequence,
Tuple,
Type,
)
import attr
from twisted.internet.defer import Deferred
from twisted.internet.interfaces import IConsumer
from twisted.protocols.basic import FileSender
import synapse
from synapse.api.errors import NotFoundError
from synapse.logging.context import defer_to_thread, make_deferred_yieldable
from synapse.util import Clock
from synapse.util.file_consumer import BackgroundFileConsumer
from ._base import FileInfo, Responder
from .filepath import MediaFilePaths
if TYPE_CHECKING:
from synapse.media.storage_provider import StorageProvider
from synapse.server import HomeServer
logger = logging.getLogger(__name__)
class MediaStorage:
"""Responsible for storing/fetching files from local sources.
Args:
hs
local_media_directory: Base path where we store media on disk
filepaths
storage_providers: List of StorageProvider that are used to fetch and store files.
"""
def __init__(
self,
hs: "HomeServer",
local_media_directory: str,
filepaths: MediaFilePaths,
storage_providers: Sequence["StorageProvider"],
):
self.hs = hs
self.reactor = hs.get_reactor()
self.local_media_directory = local_media_directory
self.filepaths = filepaths
self.storage_providers = storage_providers
self.spam_checker = hs.get_spam_checker()
self.clock = hs.get_clock()
async def store_file(self, source: IO, file_info: FileInfo) -> str:
"""Write `source` to the on disk media store, and also any other
configured storage providers
Args:
source: A file like object that should be written
file_info: Info about the file to store
Returns:
the file path written to in the primary media store
"""
with self.store_into_file(file_info) as (f, fname, finish_cb):
# Write to the main repository
await self.write_to_file(source, f)
await finish_cb()
return fname
async def write_to_file(self, source: IO, output: IO) -> None:
"""Asynchronously write the `source` to `output`."""
await defer_to_thread(self.reactor, _write_file_synchronously, source, output)
@contextlib.contextmanager
def store_into_file(
self, file_info: FileInfo
) -> Generator[Tuple[BinaryIO, str, Callable[[], Awaitable[None]]], None, None]:
"""Context manager used to get a file like object to write into, as
described by file_info.
Actually yields a 3-tuple (file, fname, finish_cb), where file is a file
like object that can be written to, fname is the absolute path of file
on disk, and finish_cb is a function that returns an awaitable.
fname can be used to read the contents from after upload, e.g. to
generate thumbnails.
finish_cb must be called and waited on after the file has been
successfully been written to. Should not be called if there was an
error.
Args:
file_info: Info about the file to store
Example:
with media_storage.store_into_file(info) as (f, fname, finish_cb):
# .. write into f ...
await finish_cb()
"""
path = self._file_info_to_path(file_info)
fname = os.path.join(self.local_media_directory, path)
dirname = os.path.dirname(fname)
os.makedirs(dirname, exist_ok=True)
finished_called = [False]
try:
with open(fname, "wb") as f:
async def finish() -> None:
# Ensure that all writes have been flushed and close the
# file.
f.flush()
f.close()
spam_check = await self.spam_checker.check_media_file_for_spam(
ReadableFileWrapper(self.clock, fname), file_info
)
if spam_check != synapse.module_api.NOT_SPAM:
logger.info("Blocking media due to spam checker")
# Note that we'll delete the stored media, due to the
# try/except below. The media also won't be stored in
# the DB.
# We currently ignore any additional field returned by
# the spam-check API.
raise SpamMediaException(errcode=spam_check[0])
for provider in self.storage_providers:
await provider.store_file(path, file_info)
finished_called[0] = True
yield f, fname, finish
except Exception as e:
try:
os.remove(fname)
except Exception:
pass
raise e from None
if not finished_called:
raise Exception("Finished callback not called")
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
Returns:
Returns a Responder if the file was found, otherwise None.
"""
paths = [self._file_info_to_path(file_info)]
# fallback for remote thumbnails with no method in the filename
if file_info.thumbnail and file_info.server_name:
paths.append(
self.filepaths.remote_media_thumbnail_rel_legacy(
server_name=file_info.server_name,
file_id=file_info.file_id,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
)
)
for path in paths:
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)
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)
if res:
logger.debug("Streaming %s from %s", path, provider)
return res
logger.debug("%s not found on %s", path, provider)
return None
async def ensure_media_is_in_local_cache(self, file_info: FileInfo) -> str:
"""Ensures that the given file is in the local cache. Attempts to
download it from storage providers if it isn't.
Args:
file_info
Returns:
Full path to local file
"""
path = self._file_info_to_path(file_info)
local_path = os.path.join(self.local_media_directory, path)
if os.path.exists(local_path):
return local_path
# Fallback for paths without method names
# Should be removed in the future
if file_info.thumbnail and file_info.server_name:
legacy_path = self.filepaths.remote_media_thumbnail_rel_legacy(
server_name=file_info.server_name,
file_id=file_info.file_id,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
)
legacy_local_path = os.path.join(self.local_media_directory, legacy_path)
if os.path.exists(legacy_local_path):
return legacy_local_path
dirname = os.path.dirname(local_path)
os.makedirs(dirname, exist_ok=True)
for provider in self.storage_providers:
res: Any = await provider.fetch(path, file_info)
if res:
with res:
consumer = BackgroundFileConsumer(
open(local_path, "wb"), self.reactor
)
await res.write_to_consumer(consumer)
await consumer.wait()
return local_path
raise NotFoundError()
def _file_info_to_path(self, file_info: FileInfo) -> str:
"""Converts file_info into a relative path.
The path is suitable for storing files under a directory, e.g. used to
store files on local FS under the base media repository directory.
"""
if file_info.url_cache:
if file_info.thumbnail:
return self.filepaths.url_cache_thumbnail_rel(
media_id=file_info.file_id,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
method=file_info.thumbnail.method,
)
return self.filepaths.url_cache_filepath_rel(file_info.file_id)
if file_info.server_name:
if file_info.thumbnail:
return self.filepaths.remote_media_thumbnail_rel(
server_name=file_info.server_name,
file_id=file_info.file_id,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
method=file_info.thumbnail.method,
)
return self.filepaths.remote_media_filepath_rel(
file_info.server_name, file_info.file_id
)
if file_info.thumbnail:
return self.filepaths.local_media_thumbnail_rel(
media_id=file_info.file_id,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
method=file_info.thumbnail.method,
)
return self.filepaths.local_media_filepath_rel(file_info.file_id)
def _write_file_synchronously(source: IO, dest: IO) -> None:
"""Write `source` to the file like `dest` synchronously. Should be called
from a thread.
Args:
source: A file like object that's to be written
dest: A file like object to be written to
"""
source.seek(0) # Ensure we read from the start of the file
shutil.copyfileobj(source, dest)
class FileResponder(Responder):
"""Wraps an open file that can be sent to a request.
Args:
open_file: A file like object to be streamed ot the client,
is closed when finished streaming.
"""
def __init__(self, open_file: IO):
self.open_file = open_file
def write_to_consumer(self, consumer: IConsumer) -> Deferred:
return make_deferred_yieldable(
FileSender().beginFileTransfer(self.open_file, consumer)
)
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).
"""
@attr.s(slots=True, auto_attribs=True)
class ReadableFileWrapper:
"""Wrapper that allows reading a file in chunks, yielding to the reactor,
and writing to a callback.
This is simplified `FileSender` that takes an IO object rather than an
`IConsumer`.
"""
CHUNK_SIZE = 2**14
clock: Clock
path: str
async def write_chunks_to(self, callback: Callable[[bytes], object]) -> None:
"""Reads the file in chunks and calls the callback with each chunk."""
with open(self.path, "rb") as file:
while True:
chunk = file.read(self.CHUNK_SIZE)
if not chunk:
break
callback(chunk)
# We yield to the reactor by sleeping for 0 seconds.
await self.clock.sleep(0)

2
synapse/rest/media/v1/oembed.py → synapse/media/oembed.py
View file

@ -18,7 +18,7 @@ from typing import TYPE_CHECKING, List, Optional
import attr
from synapse.rest.media.v1.preview_html import parse_html_description
from synapse.media.preview_html import parse_html_description
from synapse.types import JsonDict
from synapse.util import json_decoder

0
synapse/rest/media/v1/preview_html.py → synapse/media/preview_html.py
View file

181
synapse/media/storage_provider.py Normal file
View file

@ -0,0 +1,181 @@
# 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 abc
import logging
import os
import shutil
from typing import TYPE_CHECKING, Callable, Optional
from synapse.config._base import Config
from synapse.logging.context import defer_to_thread, run_in_background
from synapse.util.async_helpers import maybe_awaitable
from ._base import FileInfo, Responder
from .media_storage import FileResponder
logger = logging.getLogger(__name__)
if TYPE_CHECKING:
from synapse.server import HomeServer
class StorageProvider(metaclass=abc.ABCMeta):
"""A storage provider is a service that can store uploaded media and
retrieve them.
"""
@abc.abstractmethod
async def store_file(self, path: str, file_info: FileInfo) -> None:
"""Store the file described by file_info. The actual contents can be
retrieved by reading the file in file_info.upload_path.
Args:
path: Relative path of file in local cache
file_info: The metadata of the file.
"""
@abc.abstractmethod
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.
Returns:
Returns a Responder if the provider has the file, otherwise returns None.
"""
class StorageProviderWrapper(StorageProvider):
"""Wraps a storage provider and provides various config options
Args:
backend: The storage provider to wrap.
store_local: Whether to store new local files or not.
store_synchronous: Whether to wait for file to be successfully
uploaded, or todo the upload in the background.
store_remote: Whether remote media should be uploaded
"""
def __init__(
self,
backend: StorageProvider,
store_local: bool,
store_synchronous: bool,
store_remote: bool,
):
self.backend = backend
self.store_local = store_local
self.store_synchronous = store_synchronous
self.store_remote = store_remote
def __str__(self) -> str:
return "StorageProviderWrapper[%s]" % (self.backend,)
async def store_file(self, path: str, file_info: FileInfo) -> None:
if not file_info.server_name and not self.store_local:
return None
if file_info.server_name and not self.store_remote:
return None
if file_info.url_cache:
# The URL preview cache is short lived and not worth offloading or
# backing up.
return None
if self.store_synchronous:
# store_file is supposed to return an Awaitable, but guard
# against improper implementations.
await maybe_awaitable(self.backend.store_file(path, file_info)) # type: ignore
else:
# TODO: Handle errors.
async def store() -> None:
try:
return await maybe_awaitable(
self.backend.store_file(path, file_info)
)
except Exception:
logger.exception("Error storing file")
run_in_background(store)
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.
return None
# store_file is supposed to return an Awaitable, but guard
# against improper implementations.
return await maybe_awaitable(self.backend.fetch(path, file_info))
class FileStorageProviderBackend(StorageProvider):
"""A storage provider that stores files in a directory on a filesystem.
Args:
hs
config: The config returned by `parse_config`.
"""
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 "FileStorageProviderBackend[%s]" % (self.base_directory,)
async def store_file(self, path: str, file_info: FileInfo) -> None:
"""See StorageProvider.store_file"""
primary_fname = os.path.join(self.cache_directory, path)
backup_fname = os.path.join(self.base_directory, path)
dirname = os.path.dirname(backup_fname)
os.makedirs(dirname, exist_ok=True)
# mypy needs help inferring the type of the second parameter, which is generic
shutil_copyfile: Callable[[str, str], str] = shutil.copyfile
await defer_to_thread(
self.hs.get_reactor(),
shutil_copyfile,
primary_fname,
backup_fname,
)
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):
return FileResponder(open(backup_fname, "rb"))
return None
@staticmethod
def parse_config(config: dict) -> str:
"""Called on startup to parse config supplied. This should parse
the config and raise if there is a problem.
The returned value is passed into the constructor.
In this case we only care about a single param, the directory, so let's
just pull that out.
"""
return Config.ensure_directory(config["directory"])

0
synapse/rest/media/v1/thumbnailer.py → synapse/media/thumbnailer.py
View file

0
synapse/rest/media/v1/config_resource.py → synapse/rest/media/config_resource.py
View file

5
synapse/rest/media/v1/download_resource.py → synapse/rest/media/download_resource.py
View file

@ -22,11 +22,10 @@ from synapse.http.server import (
)
from synapse.http.servlet import parse_boolean
from synapse.http.site import SynapseRequest
from ._base import parse_media_id, respond_404
from synapse.media._base import parse_media_id, respond_404
if TYPE_CHECKING:
from synapse.rest.media.v1.media_repository import MediaRepository
from synapse.media.media_repository import MediaRepository
from synapse.server import HomeServer
logger = logging.getLogger(__name__)

93
synapse/rest/media/media_repository_resource.py Normal file
View file

@ -0,0 +1,93 @@
# Copyright 2014-2016 OpenMarket Ltd
# 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.
from typing import TYPE_CHECKING
from synapse.config._base import ConfigError
from synapse.http.server import UnrecognizedRequestResource
from .config_resource import MediaConfigResource
from .download_resource import DownloadResource
from .preview_url_resource import PreviewUrlResource
from .thumbnail_resource import ThumbnailResource
from .upload_resource import UploadResource
if TYPE_CHECKING:
from synapse.server import HomeServer
class MediaRepositoryResource(UnrecognizedRequestResource):
"""File uploading and downloading.
Uploads are POSTed to a resource which returns a token which is used to GET
the download::
=> POST /_matrix/media/r0/upload HTTP/1.1
Content-Type: <media-type>
Content-Length: <content-length>
<media>
<= HTTP/1.1 200 OK
Content-Type: application/json
{ "content_uri": "mxc://<server-name>/<media-id>" }
=> GET /_matrix/media/r0/download/<server-name>/<media-id> HTTP/1.1
<= HTTP/1.1 200 OK
Content-Type: <media-type>
Content-Disposition: attachment;filename=<upload-filename>
<media>
Clients can get thumbnails by supplying a desired width and height and
thumbnailing method::
=> GET /_matrix/media/r0/thumbnail/<server_name>
/<media-id>?width=<w>&height=<h>&method=<m> HTTP/1.1
<= HTTP/1.1 200 OK
Content-Type: image/jpeg or image/png
<thumbnail>
The thumbnail methods are "crop" and "scale". "scale" tries to return an
image where either the width or the height is smaller than the requested
size. The client should then scale and letterbox the image if it needs to
fit within a given rectangle. "crop" tries to return an image where the
width and height are close to the requested size and the aspect matches
the requested size. The client should scale the image if it needs to fit
within a given rectangle.
"""
def __init__(self, hs: "HomeServer"):
# If we're not configured to use it, raise if we somehow got here.
if not hs.config.media.can_load_media_repo:
raise ConfigError("Synapse is not configured to use a media repo.")
super().__init__()
media_repo = hs.get_media_repository()
self.putChild(b"upload", UploadResource(hs, media_repo))
self.putChild(b"download", DownloadResource(hs, media_repo))
self.putChild(
b"thumbnail", ThumbnailResource(hs, media_repo, media_repo.media_storage)
)
if hs.config.media.url_preview_enabled:
self.putChild(
b"preview_url",
PreviewUrlResource(hs, media_repo, media_repo.media_storage),
)
self.putChild(b"config", MediaConfigResource(hs))

12
synapse/rest/media/v1/preview_url_resource.py → synapse/rest/media/preview_url_resource.py
View file

@ -40,21 +40,19 @@ from synapse.http.server import (
from synapse.http.servlet import parse_integer, parse_string
from synapse.http.site import SynapseRequest
from synapse.logging.context import make_deferred_yieldable, run_in_background
from synapse.media._base import FileInfo, get_filename_from_headers
from synapse.media.media_storage import MediaStorage
from synapse.media.oembed import OEmbedProvider
from synapse.media.preview_html import decode_body, parse_html_to_open_graph
from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.rest.media.v1._base import get_filename_from_headers
from synapse.rest.media.v1.media_storage import MediaStorage
from synapse.rest.media.v1.oembed import OEmbedProvider
from synapse.rest.media.v1.preview_html import decode_body, parse_html_to_open_graph
from synapse.types import JsonDict, UserID
from synapse.util import json_encoder
from synapse.util.async_helpers import ObservableDeferred
from synapse.util.caches.expiringcache import ExpiringCache
from synapse.util.stringutils import random_string
from ._base import FileInfo
if TYPE_CHECKING:
from synapse.rest.media.v1.media_repository import MediaRepository
from synapse.media.media_repository import MediaRepository
from synapse.server import HomeServer
logger = logging.getLogger(__name__)

7
synapse/rest/media/v1/thumbnail_resource.py → synapse/rest/media/thumbnail_resource.py
View file

@ -27,9 +27,7 @@ from synapse.http.server import (
)
from synapse.http.servlet import parse_integer, parse_string
from synapse.http.site import SynapseRequest
from synapse.rest.media.v1.media_storage import MediaStorage
from ._base import (
from synapse.media._base import (
FileInfo,
ThumbnailInfo,
parse_media_id,
@ -37,9 +35,10 @@ from ._base import (
respond_with_file,
respond_with_responder,
)
from synapse.media.media_storage import MediaStorage
if TYPE_CHECKING:
from synapse.rest.media.v1.media_repository import MediaRepository
from synapse.media.media_repository import MediaRepository
from synapse.server import HomeServer
logger = logging.getLogger(__name__)

4
synapse/rest/media/v1/upload_resource.py → synapse/rest/media/upload_resource.py
View file

@ -20,10 +20,10 @@ from synapse.api.errors import Codes, SynapseError
from synapse.http.server import DirectServeJsonResource, respond_with_json
from synapse.http.servlet import parse_bytes_from_args
from synapse.http.site import SynapseRequest
from synapse.rest.media.v1.media_storage import SpamMediaException
from synapse.media.media_storage import SpamMediaException
if TYPE_CHECKING:
from synapse.rest.media.v1.media_repository import MediaRepository
from synapse.media.media_repository import MediaRepository
from synapse.server import HomeServer
logger = logging.getLogger(__name__)

470
synapse/rest/media/v1/_base.py
View file

@ -1,5 +1,4 @@
# Copyright 2014-2016 OpenMarket Ltd
# Copyright 2019-2021 The Matrix.org Foundation C.I.C.
# Copyright 2023 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.
@ -12,468 +11,7 @@
# 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 logging
import os
import urllib
from abc import ABC, abstractmethod
from types import TracebackType
from typing import Awaitable, Dict, Generator, List, Optional, Tuple, Type
import attr
from twisted.internet.interfaces import IConsumer
from twisted.protocols.basic import FileSender
from twisted.web.server import Request
from synapse.api.errors import Codes, SynapseError, cs_error
from synapse.http.server import finish_request, respond_with_json
from synapse.http.site import SynapseRequest
from synapse.logging.context import make_deferred_yieldable
from synapse.util.stringutils import is_ascii, parse_and_validate_server_name
logger = logging.getLogger(__name__)
# list all text content types that will have the charset default to UTF-8 when
# none is given
TEXT_CONTENT_TYPES = [
"text/css",
"text/csv",
"text/html",
"text/calendar",
"text/plain",
"text/javascript",
"application/json",
"application/ld+json",
"application/rtf",
"image/svg+xml",
"text/xml",
]
def parse_media_id(request: Request) -> Tuple[str, str, Optional[str]]:
"""Parses the server name, media ID and optional file name from the request URI
Also performs some rough validation on the server name.
Args:
request: The `Request`.
Returns:
A tuple containing the parsed server name, media ID and optional file name.
Raises:
SynapseError(404): if parsing or validation fail for any reason
"""
try:
# The type on postpath seems incorrect in Twisted 21.2.0.
postpath: List[bytes] = request.postpath # type: ignore
assert postpath
# This allows users to append e.g. /test.png to the URL. Useful for
# clients that parse the URL to see content type.
server_name_bytes, media_id_bytes = postpath[:2]
server_name = server_name_bytes.decode("utf-8")
media_id = media_id_bytes.decode("utf8")
# Validate the server name, raising if invalid
parse_and_validate_server_name(server_name)
file_name = None
if len(postpath) > 2:
try:
file_name = urllib.parse.unquote(postpath[-1].decode("utf-8"))
except UnicodeDecodeError:
pass
return server_name, media_id, file_name
except Exception:
raise SynapseError(
404, "Invalid media id token %r" % (request.postpath,), Codes.UNKNOWN
)
def respond_404(request: SynapseRequest) -> None:
respond_with_json(
request,
404,
cs_error("Not found %r" % (request.postpath,), code=Codes.NOT_FOUND),
send_cors=True,
)
async def respond_with_file(
request: SynapseRequest,
media_type: str,
file_path: str,
file_size: Optional[int] = None,
upload_name: Optional[str] = None,
) -> None:
logger.debug("Responding with %r", file_path)
if os.path.isfile(file_path):
if file_size is None:
stat = os.stat(file_path)
file_size = stat.st_size
add_file_headers(request, media_type, file_size, upload_name)
with open(file_path, "rb") as f:
await make_deferred_yieldable(FileSender().beginFileTransfer(f, request))
finish_request(request)
else:
respond_404(request)
def add_file_headers(
request: Request,
media_type: str,
file_size: Optional[int],
upload_name: Optional[str],
) -> None:
"""Adds the correct response headers in preparation for responding with the
media.
Args:
request
media_type: The media/content type.
file_size: Size in bytes of the media, if known.
upload_name: The name of the requested file, if any.
"""
def _quote(x: str) -> str:
return urllib.parse.quote(x.encode("utf-8"))
# Default to a UTF-8 charset for text content types.
# ex, uses UTF-8 for 'text/css' but not 'text/css; charset=UTF-16'
if media_type.lower() in TEXT_CONTENT_TYPES:
content_type = media_type + "; charset=UTF-8"
else:
content_type = media_type
request.setHeader(b"Content-Type", content_type.encode("UTF-8"))
if upload_name:
# RFC6266 section 4.1 [1] defines both `filename` and `filename*`.
#
# `filename` is defined to be a `value`, which is defined by RFC2616
# section 3.6 [2] to be a `token` or a `quoted-string`, where a `token`
# is (essentially) a single US-ASCII word, and a `quoted-string` is a
# US-ASCII string surrounded by double-quotes, using backslash as an
# escape character. Note that %-encoding is *not* permitted.
#
# `filename*` is defined to be an `ext-value`, which is defined in
# RFC5987 section 3.2.1 [3] to be `charset "'" [ language ] "'" value-chars`,
# where `value-chars` is essentially a %-encoded string in the given charset.
#
# [1]: https://tools.ietf.org/html/rfc6266#section-4.1
# [2]: https://tools.ietf.org/html/rfc2616#section-3.6
# [3]: https://tools.ietf.org/html/rfc5987#section-3.2.1
# We avoid the quoted-string version of `filename`, because (a) synapse didn't
# correctly interpret those as of 0.99.2 and (b) they are a bit of a pain and we
# may as well just do the filename* version.
if _can_encode_filename_as_token(upload_name):
disposition = "inline; filename=%s" % (upload_name,)
else:
disposition = "inline; filename*=utf-8''%s" % (_quote(upload_name),)
request.setHeader(b"Content-Disposition", disposition.encode("ascii"))
# cache for at least a day.
# XXX: we might want to turn this off for data we don't want to
# recommend caching as it's sensitive or private - or at least
# select private. don't bother setting Expires as all our
# clients are smart enough to be happy with Cache-Control
request.setHeader(b"Cache-Control", b"public,max-age=86400,s-maxage=86400")
if file_size is not None:
request.setHeader(b"Content-Length", b"%d" % (file_size,))
# Tell web crawlers to not index, archive, or follow links in media. This
# should help to prevent things in the media repo from showing up in web
# search results.
request.setHeader(b"X-Robots-Tag", "noindex, nofollow, noarchive, noimageindex")
# separators as defined in RFC2616. SP and HT are handled separately.
# see _can_encode_filename_as_token.
_FILENAME_SEPARATOR_CHARS = {
"(",
")",
"<",
">",
"@",
",",
";",
":",
"\\",
'"',
"/",
"[",
"]",
"?",
"=",
"{",
"}",
}
def _can_encode_filename_as_token(x: str) -> bool:
for c in x:
# from RFC2616:
#
# token = 1*<any CHAR except CTLs or separators>
#
# separators = "(" | ")" | "<" | ">" | "@"
# | "," | ";" | ":" | "\" | <">
# | "/" | "[" | "]" | "?" | "="
# | "{" | "}" | SP | HT
#
# CHAR = <any US-ASCII character (octets 0 - 127)>
#
# CTL = <any US-ASCII control character
# (octets 0 - 31) and DEL (127)>
#
if ord(c) >= 127 or ord(c) <= 32 or c in _FILENAME_SEPARATOR_CHARS:
return False
return True
async def respond_with_responder(
request: SynapseRequest,
responder: "Optional[Responder]",
media_type: str,
file_size: Optional[int],
upload_name: Optional[str] = None,
) -> None:
"""Responds to the request with given responder. If responder is None then
returns 404.
Args:
request
responder
media_type: The media/content type.
file_size: Size in bytes of the media. If not known it should be None
upload_name: The name of the requested file, if any.
"""
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)
add_file_headers(request, media_type, file_size, upload_name)
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)
class Responder(ABC):
"""Represents a response that can be streamed to the requester.
Responder is a context manager which *must* be used, so that any resources
held can be cleaned up.
"""
@abstractmethod
def write_to_consumer(self, consumer: IConsumer) -> Awaitable:
"""Stream response into consumer
Args:
consumer: The consumer to stream into.
Returns:
Resolves once the response has finished being written
"""
raise NotImplementedError()
def __enter__(self) -> None: # noqa: B027
pass
def __exit__( # noqa: B027
self,
exc_type: Optional[Type[BaseException]],
exc_val: Optional[BaseException],
exc_tb: Optional[TracebackType],
) -> None:
pass
@attr.s(slots=True, frozen=True, auto_attribs=True)
class ThumbnailInfo:
"""Details about a generated thumbnail."""
width: int
height: int
method: str
# Content type of thumbnail, e.g. image/png
type: str
# The size of the media file, in bytes.
length: Optional[int] = None
@attr.s(slots=True, frozen=True, auto_attribs=True)
class FileInfo:
"""Details about a requested/uploaded file."""
# The server name where the media originated from, or None if local.
server_name: Optional[str]
# The local ID of the file. For local files this is the same as the media_id
file_id: str
# If the file is for the url preview cache
url_cache: bool = False
# Whether the file is a thumbnail or not.
thumbnail: Optional[ThumbnailInfo] = None
# The below properties exist to maintain compatibility with third-party modules.
@property
def thumbnail_width(self) -> Optional[int]:
if not self.thumbnail:
return None
return self.thumbnail.width
@property
def thumbnail_height(self) -> Optional[int]:
if not self.thumbnail:
return None
return self.thumbnail.height
@property
def thumbnail_method(self) -> Optional[str]:
if not self.thumbnail:
return None
return self.thumbnail.method
@property
def thumbnail_type(self) -> Optional[str]:
if not self.thumbnail:
return None
return self.thumbnail.type
@property
def thumbnail_length(self) -> Optional[int]:
if not self.thumbnail:
return None
return self.thumbnail.length
def get_filename_from_headers(headers: Dict[bytes, List[bytes]]) -> Optional[str]:
"""
Get the filename of the downloaded file by inspecting the
Content-Disposition HTTP header.
Args:
headers: The HTTP request headers.
Returns:
The filename, or None.
"""
content_disposition = headers.get(b"Content-Disposition", [b""])
# No header, bail out.
if not content_disposition[0]:
return None
_, params = _parse_header(content_disposition[0])
upload_name = None
# First check if there is a valid UTF-8 filename
upload_name_utf8 = params.get(b"filename*", None)
if upload_name_utf8:
if upload_name_utf8.lower().startswith(b"utf-8''"):
upload_name_utf8 = upload_name_utf8[7:]
# We have a filename*= section. This MUST be ASCII, and any UTF-8
# bytes are %-quoted.
try:
# Once it is decoded, we can then unquote the %-encoded
# parts strictly into a unicode string.
upload_name = urllib.parse.unquote(
upload_name_utf8.decode("ascii"), errors="strict"
)
except UnicodeDecodeError:
# Incorrect UTF-8.
pass
# If there isn't check for an ascii name.
if not upload_name:
upload_name_ascii = params.get(b"filename", None)
if upload_name_ascii and is_ascii(upload_name_ascii):
upload_name = upload_name_ascii.decode("ascii")
# This may be None here, indicating we did not find a matching name.
return upload_name
def _parse_header(line: bytes) -> Tuple[bytes, Dict[bytes, bytes]]:
"""Parse a Content-type like header.
Cargo-culted from `cgi`, but works on bytes rather than strings.
Args:
line: header to be parsed
Returns:
The main content-type, followed by the parameter dictionary
"""
parts = _parseparam(b";" + line)
key = next(parts)
pdict = {}
for p in parts:
i = p.find(b"=")
if i >= 0:
name = p[:i].strip().lower()
value = p[i + 1 :].strip()
# strip double-quotes
if len(value) >= 2 and value[0:1] == value[-1:] == b'"':
value = value[1:-1]
value = value.replace(b"\\\\", b"\\").replace(b'\\"', b'"')
pdict[name] = value
return key, pdict
def _parseparam(s: bytes) -> Generator[bytes, None, None]:
"""Generator which splits the input on ;, respecting double-quoted sequences
Cargo-culted from `cgi`, but works on bytes rather than strings.
Args:
s: header to be parsed
Returns:
The split input
"""
while s[:1] == b";":
s = s[1:]
# look for the next ;
end = s.find(b";")
# if there is an odd number of " marks between here and the next ;, skip to the
# next ; instead
while end > 0 and (s.count(b'"', 0, end) - s.count(b'\\"', 0, end)) % 2:
end = s.find(b";", end + 1)
if end < 0:
end = len(s)
f = s[:end]
yield f.strip()
s = s[end:]
# This exists purely for backwards compatibility with media providers and spam checkers.
from synapse.media._base import FileInfo, Responder # noqa: F401

365
synapse/rest/media/v1/media_storage.py
View file

@ -1,4 +1,4 @@
# Copyright 2018-2021 The Matrix.org Foundation C.I.C.
# Copyright 2023 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.
@ -11,364 +11,7 @@
# 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 contextlib
import logging
import os
import shutil
from types import TracebackType
from typing import (
IO,
TYPE_CHECKING,
Any,
Awaitable,
BinaryIO,
Callable,
Generator,
Optional,
Sequence,
Tuple,
Type,
)
#
import attr
from twisted.internet.defer import Deferred
from twisted.internet.interfaces import IConsumer
from twisted.protocols.basic import FileSender
import synapse
from synapse.api.errors import NotFoundError
from synapse.logging.context import defer_to_thread, make_deferred_yieldable
from synapse.util import Clock
from synapse.util.file_consumer import BackgroundFileConsumer
from ._base import FileInfo, Responder
from .filepath import MediaFilePaths
if TYPE_CHECKING:
from synapse.rest.media.v1.storage_provider import StorageProvider
from synapse.server import HomeServer
logger = logging.getLogger(__name__)
class MediaStorage:
"""Responsible for storing/fetching files from local sources.
Args:
hs
local_media_directory: Base path where we store media on disk
filepaths
storage_providers: List of StorageProvider that are used to fetch and store files.
"""
def __init__(
self,
hs: "HomeServer",
local_media_directory: str,
filepaths: MediaFilePaths,
storage_providers: Sequence["StorageProvider"],
):
self.hs = hs
self.reactor = hs.get_reactor()
self.local_media_directory = local_media_directory
self.filepaths = filepaths
self.storage_providers = storage_providers
self.spam_checker = hs.get_spam_checker()
self.clock = hs.get_clock()
async def store_file(self, source: IO, file_info: FileInfo) -> str:
"""Write `source` to the on disk media store, and also any other
configured storage providers
Args:
source: A file like object that should be written
file_info: Info about the file to store
Returns:
the file path written to in the primary media store
"""
with self.store_into_file(file_info) as (f, fname, finish_cb):
# Write to the main repository
await self.write_to_file(source, f)
await finish_cb()
return fname
async def write_to_file(self, source: IO, output: IO) -> None:
"""Asynchronously write the `source` to `output`."""
await defer_to_thread(self.reactor, _write_file_synchronously, source, output)
@contextlib.contextmanager
def store_into_file(
self, file_info: FileInfo
) -> Generator[Tuple[BinaryIO, str, Callable[[], Awaitable[None]]], None, None]:
"""Context manager used to get a file like object to write into, as
described by file_info.
Actually yields a 3-tuple (file, fname, finish_cb), where file is a file
like object that can be written to, fname is the absolute path of file
on disk, and finish_cb is a function that returns an awaitable.
fname can be used to read the contents from after upload, e.g. to
generate thumbnails.
finish_cb must be called and waited on after the file has been
successfully been written to. Should not be called if there was an
error.
Args:
file_info: Info about the file to store
Example:
with media_storage.store_into_file(info) as (f, fname, finish_cb):
# .. write into f ...
await finish_cb()
"""
path = self._file_info_to_path(file_info)
fname = os.path.join(self.local_media_directory, path)
dirname = os.path.dirname(fname)
os.makedirs(dirname, exist_ok=True)
finished_called = [False]
try:
with open(fname, "wb") as f:
async def finish() -> None:
# Ensure that all writes have been flushed and close the
# file.
f.flush()
f.close()
spam_check = await self.spam_checker.check_media_file_for_spam(
ReadableFileWrapper(self.clock, fname), file_info
)
if spam_check != synapse.module_api.NOT_SPAM:
logger.info("Blocking media due to spam checker")
# Note that we'll delete the stored media, due to the
# try/except below. The media also won't be stored in
# the DB.
# We currently ignore any additional field returned by
# the spam-check API.
raise SpamMediaException(errcode=spam_check[0])
for provider in self.storage_providers:
await provider.store_file(path, file_info)
finished_called[0] = True
yield f, fname, finish
except Exception as e:
try:
os.remove(fname)
except Exception:
pass
raise e from None
if not finished_called:
raise Exception("Finished callback not called")
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
Returns:
Returns a Responder if the file was found, otherwise None.
"""
paths = [self._file_info_to_path(file_info)]
# fallback for remote thumbnails with no method in the filename
if file_info.thumbnail and file_info.server_name:
paths.append(
self.filepaths.remote_media_thumbnail_rel_legacy(
server_name=file_info.server_name,
file_id=file_info.file_id,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
)
)
for path in paths:
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)
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)
if res:
logger.debug("Streaming %s from %s", path, provider)
return res
logger.debug("%s not found on %s", path, provider)
return None
async def ensure_media_is_in_local_cache(self, file_info: FileInfo) -> str:
"""Ensures that the given file is in the local cache. Attempts to
download it from storage providers if it isn't.
Args:
file_info
Returns:
Full path to local file
"""
path = self._file_info_to_path(file_info)
local_path = os.path.join(self.local_media_directory, path)
if os.path.exists(local_path):
return local_path
# Fallback for paths without method names
# Should be removed in the future
if file_info.thumbnail and file_info.server_name:
legacy_path = self.filepaths.remote_media_thumbnail_rel_legacy(
server_name=file_info.server_name,
file_id=file_info.file_id,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
)
legacy_local_path = os.path.join(self.local_media_directory, legacy_path)
if os.path.exists(legacy_local_path):
return legacy_local_path
dirname = os.path.dirname(local_path)
os.makedirs(dirname, exist_ok=True)
for provider in self.storage_providers:
res: Any = await provider.fetch(path, file_info)
if res:
with res:
consumer = BackgroundFileConsumer(
open(local_path, "wb"), self.reactor
)
await res.write_to_consumer(consumer)
await consumer.wait()
return local_path
raise NotFoundError()
def _file_info_to_path(self, file_info: FileInfo) -> str:
"""Converts file_info into a relative path.
The path is suitable for storing files under a directory, e.g. used to
store files on local FS under the base media repository directory.
"""
if file_info.url_cache:
if file_info.thumbnail:
return self.filepaths.url_cache_thumbnail_rel(
media_id=file_info.file_id,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
method=file_info.thumbnail.method,
)
return self.filepaths.url_cache_filepath_rel(file_info.file_id)
if file_info.server_name:
if file_info.thumbnail:
return self.filepaths.remote_media_thumbnail_rel(
server_name=file_info.server_name,
file_id=file_info.file_id,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
method=file_info.thumbnail.method,
)
return self.filepaths.remote_media_filepath_rel(
file_info.server_name, file_info.file_id
)
if file_info.thumbnail:
return self.filepaths.local_media_thumbnail_rel(
media_id=file_info.file_id,
width=file_info.thumbnail.width,
height=file_info.thumbnail.height,
content_type=file_info.thumbnail.type,
method=file_info.thumbnail.method,
)
return self.filepaths.local_media_filepath_rel(file_info.file_id)
def _write_file_synchronously(source: IO, dest: IO) -> None:
"""Write `source` to the file like `dest` synchronously. Should be called
from a thread.
Args:
source: A file like object that's to be written
dest: A file like object to be written to
"""
source.seek(0) # Ensure we read from the start of the file
shutil.copyfileobj(source, dest)
class FileResponder(Responder):
"""Wraps an open file that can be sent to a request.
Args:
open_file: A file like object to be streamed ot the client,
is closed when finished streaming.
"""
def __init__(self, open_file: IO):
self.open_file = open_file
def write_to_consumer(self, consumer: IConsumer) -> Deferred:
return make_deferred_yieldable(
FileSender().beginFileTransfer(self.open_file, consumer)
)
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).
"""
@attr.s(slots=True, auto_attribs=True)
class ReadableFileWrapper:
"""Wrapper that allows reading a file in chunks, yielding to the reactor,
and writing to a callback.
This is simplified `FileSender` that takes an IO object rather than an
`IConsumer`.
"""
CHUNK_SIZE = 2**14
clock: Clock
path: str
async def write_chunks_to(self, callback: Callable[[bytes], object]) -> None:
"""Reads the file in chunks and calls the callback with each chunk."""
with open(self.path, "rb") as file:
while True:
chunk = file.read(self.CHUNK_SIZE)
if not chunk:
break
callback(chunk)
# We yield to the reactor by sleeping for 0 seconds.
await self.clock.sleep(0)
# This exists purely for backwards compatibility with spam checkers.
from synapse.media.media_storage import ReadableFileWrapper # noqa: F401

172
synapse/rest/media/v1/storage_provider.py
View file

@ -1,4 +1,4 @@
# Copyright 2018-2021 The Matrix.org Foundation C.I.C.
# Copyright 2023 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.
@ -11,171 +11,7 @@
# 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 abc
import logging
import os
import shutil
from typing import TYPE_CHECKING, Callable, Optional
from synapse.config._base import Config
from synapse.logging.context import defer_to_thread, run_in_background
from synapse.util.async_helpers import maybe_awaitable
from ._base import FileInfo, Responder
from .media_storage import FileResponder
logger = logging.getLogger(__name__)
if TYPE_CHECKING:
from synapse.server import HomeServer
class StorageProvider(metaclass=abc.ABCMeta):
"""A storage provider is a service that can store uploaded media and
retrieve them.
"""
@abc.abstractmethod
async def store_file(self, path: str, file_info: FileInfo) -> None:
"""Store the file described by file_info. The actual contents can be
retrieved by reading the file in file_info.upload_path.
Args:
path: Relative path of file in local cache
file_info: The metadata of the file.
"""
@abc.abstractmethod
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.
Returns:
Returns a Responder if the provider has the file, otherwise returns None.
"""
class StorageProviderWrapper(StorageProvider):
"""Wraps a storage provider and provides various config options
Args:
backend: The storage provider to wrap.
store_local: Whether to store new local files or not.
store_synchronous: Whether to wait for file to be successfully
uploaded, or todo the upload in the background.
store_remote: Whether remote media should be uploaded
"""
def __init__(
self,
backend: StorageProvider,
store_local: bool,
store_synchronous: bool,
store_remote: bool,
):
self.backend = backend
self.store_local = store_local
self.store_synchronous = store_synchronous
self.store_remote = store_remote
def __str__(self) -> str:
return "StorageProviderWrapper[%s]" % (self.backend,)
async def store_file(self, path: str, file_info: FileInfo) -> None:
if not file_info.server_name and not self.store_local:
return None
if file_info.server_name and not self.store_remote:
return None
if file_info.url_cache:
# The URL preview cache is short lived and not worth offloading or
# backing up.
return None
if self.store_synchronous:
# store_file is supposed to return an Awaitable, but guard
# against improper implementations.
await maybe_awaitable(self.backend.store_file(path, file_info)) # type: ignore
else:
# TODO: Handle errors.
async def store() -> None:
try:
return await maybe_awaitable(
self.backend.store_file(path, file_info)
)
except Exception:
logger.exception("Error storing file")
run_in_background(store)
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.
return None
# store_file is supposed to return an Awaitable, but guard
# against improper implementations.
return await maybe_awaitable(self.backend.fetch(path, file_info))
class FileStorageProviderBackend(StorageProvider):
"""A storage provider that stores files in a directory on a filesystem.
Args:
hs
config: The config returned by `parse_config`.
"""
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 "FileStorageProviderBackend[%s]" % (self.base_directory,)
async def store_file(self, path: str, file_info: FileInfo) -> None:
"""See StorageProvider.store_file"""
primary_fname = os.path.join(self.cache_directory, path)
backup_fname = os.path.join(self.base_directory, path)
dirname = os.path.dirname(backup_fname)
os.makedirs(dirname, exist_ok=True)
# mypy needs help inferring the type of the second parameter, which is generic
shutil_copyfile: Callable[[str, str], str] = shutil.copyfile
await defer_to_thread(
self.hs.get_reactor(),
shutil_copyfile,
primary_fname,
backup_fname,
)
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):
return FileResponder(open(backup_fname, "rb"))
return None
@staticmethod
def parse_config(config: dict) -> str:
"""Called on startup to parse config supplied. This should parse
the config and raise if there is a problem.
The returned value is passed into the constructor.
In this case we only care about a single param, the directory, so let's
just pull that out.
"""
return Config.ensure_directory(config["directory"])
# This exists purely for backwards compatibility with media providers.
from synapse.media.storage_provider import StorageProvider # noqa: F401

6
synapse/server.py
View file

@ -105,6 +105,7 @@ from synapse.handlers.typing import FollowerTypingHandler, TypingWriterHandler
from synapse.handlers.user_directory import UserDirectoryHandler
from synapse.http.client import InsecureInterceptableContextFactory, SimpleHttpClient
from synapse.http.matrixfederationclient import MatrixFederationHttpClient
from synapse.media.media_repository import MediaRepository
from synapse.metrics.common_usage_metrics import CommonUsageMetricsManager
from synapse.module_api import ModuleApi
from synapse.notifier import Notifier, ReplicationNotifier
@ -115,10 +116,7 @@ from synapse.replication.tcp.external_cache import ExternalCache
from synapse.replication.tcp.handler import ReplicationCommandHandler
from synapse.replication.tcp.resource import ReplicationStreamer
from synapse.replication.tcp.streams import STREAMS_MAP, Stream
from synapse.rest.media.v1.media_repository import (
MediaRepository,
MediaRepositoryResource,
)
from synapse.rest.media.media_repository_resource import MediaRepositoryResource
from synapse.server_notices.server_notices_manager import ServerNoticesManager
from synapse.server_notices.server_notices_sender import ServerNoticesSender
from synapse.server_notices.worker_server_notices_sender import (

2
tests/rest/media/v1/__init__.py → tests/media/__init__.py
View file

@ -1,4 +1,4 @@
# Copyright 2018 New Vector Ltd
# Copyright 2023 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.

2
tests/rest/media/v1/test_base.py → tests/media/test_base.py
View file

@ -12,7 +12,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from synapse.rest.media.v1._base import get_filename_from_headers
from synapse.media._base import get_filename_from_headers
from tests import unittest

2
tests/rest/media/v1/test_filepath.py → tests/media/test_filepath.py
View file

@ -15,7 +15,7 @@ import inspect
import os
from typing import Iterable
from synapse.rest.media.v1.filepath import MediaFilePaths, _wrap_with_jail_check
from synapse.media.filepath import MediaFilePaths, _wrap_with_jail_check
from tests import unittest

2
tests/rest/media/v1/test_html_preview.py → tests/media/test_html_preview.py
View file

@ -12,7 +12,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from synapse.rest.media.v1.preview_html import (
from synapse.media.preview_html import (
_get_html_media_encodings,
decode_body,
parse_html_to_open_graph,

10
tests/rest/media/v1/test_media_storage.py → tests/media/test_media_storage.py
View file

@ -34,13 +34,13 @@ from synapse.events import EventBase
from synapse.events.spamcheck import load_legacy_spam_checkers
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.rest import admin
from synapse.rest.client import login
from synapse.rest.media.v1._base import FileInfo
from synapse.rest.media.v1.filepath import MediaFilePaths
from synapse.rest.media.v1.media_storage import MediaStorage, ReadableFileWrapper
from synapse.rest.media.v1.storage_provider import FileStorageProviderBackend
from synapse.server import HomeServer
from synapse.types import JsonDict, RoomAlias
from synapse.util import Clock
@ -253,7 +253,7 @@ class MediaRepoTests(unittest.HomeserverTestCase):
config["max_image_pixels"] = 2000000
provider_config = {
"module": "synapse.rest.media.v1.storage_provider.FileStorageProviderBackend",
"module": "synapse.media.storage_provider.FileStorageProviderBackend",
"store_local": True,
"store_synchronous": False,
"store_remote": True,

2
tests/rest/media/v1/test_oembed.py → tests/media/test_oembed.py
View file

@ -18,7 +18,7 @@ from parameterized import parameterized
from twisted.test.proto_helpers import MemoryReactor
from synapse.rest.media.v1.oembed import OEmbedProvider, OEmbedResult
from synapse.media.oembed import OEmbedProvider, OEmbedResult
from synapse.server import HomeServer
from synapse.types import JsonDict
from synapse.util import Clock

2
tests/rest/admin/test_media.py
View file

@ -20,8 +20,8 @@ from twisted.test.proto_helpers import MemoryReactor
import synapse.rest.admin
from synapse.api.errors import Codes
from synapse.media.filepath import MediaFilePaths
from synapse.rest.client import login, profile, room
from synapse.rest.media.v1.filepath import MediaFilePaths
from synapse.server import HomeServer
from synapse.util import Clock

2
tests/rest/admin/test_user.py
View file

@ -28,8 +28,8 @@ import synapse.rest.admin
from synapse.api.constants import ApprovalNoticeMedium, LoginType, UserTypes
from synapse.api.errors import Codes, HttpResponseException, ResourceLimitError
from synapse.api.room_versions import RoomVersions
from synapse.media.filepath import MediaFilePaths
from synapse.rest.client import devices, login, logout, profile, register, room, sync
from synapse.rest.media.v1.filepath import MediaFilePaths
from synapse.server import HomeServer
from synapse.types import JsonDict, UserID, create_requester
from synapse.util import Clock

6
tests/rest/media/v1/test_url_preview.py → tests/rest/media/test_url_preview.py
View file

@ -26,8 +26,8 @@ from twisted.internet.interfaces import IAddress, IResolutionReceiver
from twisted.test.proto_helpers import AccumulatingProtocol, MemoryReactor
from synapse.config.oembed import OEmbedEndpointConfig
from synapse.rest.media.v1.media_repository import MediaRepositoryResource
from synapse.rest.media.v1.preview_url_resource import IMAGE_CACHE_EXPIRY_MS
from synapse.rest.media.media_repository_resource import MediaRepositoryResource
from synapse.rest.media.preview_url_resource import IMAGE_CACHE_EXPIRY_MS
from synapse.server import HomeServer
from synapse.types import JsonDict
from synapse.util import Clock
@ -82,7 +82,7 @@ class URLPreviewTests(unittest.HomeserverTestCase):
config["media_store_path"] = self.media_store_path
provider_config = {
"module": "synapse.rest.media.v1.storage_provider.FileStorageProviderBackend",
"module": "synapse.media.storage_provider.FileStorageProviderBackend",
"store_local": True,
"store_synchronous": False,
"store_remote": True,