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# -*- coding: utf-8 -*-
# Copyright 2014-2016 OpenMarket Ltd
# Copyright 2018 New Vector 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 re
from twisted.internet import task
from twisted.web.client import FileBodyProducer
from synapse.api.errors import SynapseError
class RequestTimedOutError(SynapseError):
"""Exception representing timeout of an outbound request"""
def __init__(self, msg):
super().__init__(504, msg)
ACCESS_TOKEN_RE = re.compile(r"(\?.*access(_|%5[Ff])token=)[^&]*(.*)$")
CLIENT_SECRET_RE = re.compile(r"(\?.*client(_|%5[Ff])secret=)[^&]*(.*)$")
def redact_uri(uri):
"""Strips sensitive information from the uri replaces with <redacted>"""
uri = ACCESS_TOKEN_RE.sub(r"\1<redacted>\3", uri)
return CLIENT_SECRET_RE.sub(r"\1<redacted>\3", uri)
class QuieterFileBodyProducer(FileBodyProducer):
"""Wrapper for FileBodyProducer that avoids CRITICAL errors when the connection drops.
Workaround for https://github.com/matrix-org/synapse/issues/4003 /
https://twistedmatrix.com/trac/ticket/6528
"""
def stopProducing(self):
try:
FileBodyProducer.stopProducing(self)
except task.TaskStopped:
pass
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