mirror of
https://git.anonymousland.org/anonymousland/synapse.git
synced 2024-12-25 00:49:24 -05:00
103 lines
3.6 KiB
Python
103 lines
3.6 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2014-2016 OpenMarket Ltd
|
|
#
|
|
# 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 base64
|
|
import logging
|
|
import os
|
|
import re
|
|
|
|
from canonicaljson import json
|
|
|
|
from twisted.protocols.basic import FileSender
|
|
from twisted.web import resource, server
|
|
|
|
from synapse.api.errors import Codes, cs_error
|
|
from synapse.http.server import finish_request, respond_with_json_bytes
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class ContentRepoResource(resource.Resource):
|
|
"""Provides file uploading and downloading.
|
|
|
|
Uploads are POSTed to wherever this Resource is linked to. This resource
|
|
returns a "content token" which can be used to GET this content again. The
|
|
token is typically a path, but it may not be. Tokens can expire, be
|
|
one-time uses, etc.
|
|
|
|
In this case, the token is a path to the file and contains 3 interesting
|
|
sections:
|
|
- User ID base64d (for namespacing content to each user)
|
|
- random 24 char string
|
|
- Content type base64d (so we can return it when clients GET it)
|
|
|
|
"""
|
|
isLeaf = True
|
|
|
|
def __init__(self, hs, directory):
|
|
resource.Resource.__init__(self)
|
|
self.hs = hs
|
|
self.directory = directory
|
|
|
|
def render_GET(self, request):
|
|
# no auth here on purpose, to allow anyone to view, even across home
|
|
# servers.
|
|
|
|
# TODO: A little crude here, we could do this better.
|
|
filename = request.path.decode('ascii').split('/')[-1]
|
|
# be paranoid
|
|
filename = re.sub("[^0-9A-z.-_]", "", filename)
|
|
|
|
file_path = self.directory + "/" + filename
|
|
|
|
logger.debug("Searching for %s", file_path)
|
|
|
|
if os.path.isfile(file_path):
|
|
# filename has the content type
|
|
base64_contentype = filename.split(".")[1]
|
|
content_type = base64.urlsafe_b64decode(base64_contentype)
|
|
logger.info("Sending file %s", file_path)
|
|
f = open(file_path, 'rb')
|
|
request.setHeader('Content-Type', content_type)
|
|
|
|
# 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 matrix
|
|
# clients are smart enough to be happy with Cache-Control (right?)
|
|
request.setHeader(
|
|
b"Cache-Control", b"public,max-age=86400,s-maxage=86400"
|
|
)
|
|
|
|
d = FileSender().beginFileTransfer(f, request)
|
|
|
|
# after the file has been sent, clean up and finish the request
|
|
def cbFinished(ignored):
|
|
f.close()
|
|
finish_request(request)
|
|
d.addCallback(cbFinished)
|
|
else:
|
|
respond_with_json_bytes(
|
|
request,
|
|
404,
|
|
json.dumps(cs_error("Not found", code=Codes.NOT_FOUND)),
|
|
send_cors=True)
|
|
|
|
return server.NOT_DONE_YET
|
|
|
|
def render_OPTIONS(self, request):
|
|
respond_with_json_bytes(request, 200, {}, send_cors=True)
|
|
return server.NOT_DONE_YET
|