synapse-product/synapse/rest/media/v1/upload_resource.py

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# Copyright 2014-2016 OpenMarket Ltd
# Copyright 2020-2021 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
from typing import IO, TYPE_CHECKING, Dict, List, Optional
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
if TYPE_CHECKING:
from synapse.rest.media.v1.media_repository import MediaRepository
from synapse.server import HomeServer
logger = logging.getLogger(__name__)
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class UploadResource(DirectServeJsonResource):
isLeaf = True
def __init__(self, hs: "HomeServer", media_repo: "MediaRepository"):
super().__init__()
self.media_repo = media_repo
self.filepaths = media_repo.filepaths
self.store = hs.get_datastore()
self.clock = hs.get_clock()
self.server_name = hs.hostname
self.auth = hs.get_auth()
self.max_upload_size = hs.config.media.max_upload_size
self.clock = hs.get_clock()
async def _async_render_OPTIONS(self, request: SynapseRequest) -> None:
respond_with_json(request, 200, {}, send_cors=True)
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async def _async_render_POST(self, request: SynapseRequest) -> None:
requester = await self.auth.get_user_by_req(request)
raw_content_length = request.getHeader("Content-Length")
if raw_content_length is None:
raise SynapseError(msg="Request must specify a Content-Length", code=400)
try:
content_length = int(raw_content_length)
except ValueError:
raise SynapseError(msg="Content-Length value is invalid", code=400)
if content_length > self.max_upload_size:
raise SynapseError(
msg="Upload request body is too large",
code=413,
errcode=Codes.TOO_LARGE,
)
args: Dict[bytes, List[bytes]] = request.args # type: ignore
upload_name_bytes = parse_bytes_from_args(args, "filename")
if upload_name_bytes:
try:
upload_name: Optional[str] = upload_name_bytes.decode("utf8")
except UnicodeDecodeError:
raise SynapseError(
msg="Invalid UTF-8 filename parameter: %r" % (upload_name_bytes,),
code=400,
)
# If the name is falsey (e.g. an empty byte string) ensure it is None.
else:
upload_name = None
headers = request.requestHeaders
if headers.hasHeader(b"Content-Type"):
content_type_headers = headers.getRawHeaders(b"Content-Type")
assert content_type_headers # for mypy
media_type = content_type_headers[0].decode("ascii")
else:
media_type = "application/octet-stream"
# if headers.hasHeader(b"Content-Disposition"):
# disposition = headers.getRawHeaders(b"Content-Disposition")[0]
# TODO(markjh): parse content-dispostion
try:
content: IO = request.content # type: ignore
content_uri = await self.media_repo.create_content(
media_type, upload_name, content, content_length, requester.user
)
except SpamMediaException:
# For uploading of media we want to respond with a 400, instead of
# the default 404, as that would just be confusing.
raise SynapseError(400, "Bad content")
logger.info("Uploaded content with URI %r", content_uri)
respond_with_json(request, 200, {"content_uri": content_uri}, send_cors=True)