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synapse/synapse/app/__init__.py
Richard van der Hoff 7615a8ced1 ACME config cleanups (#4525)
* Handle listening for ACME requests on IPv6 addresses

the weird url-but-not-actually-a-url-string doesn't handle IPv6 addresses
without extra quoting. Building a string which you are about to parse again
seems like a weird choice. Let's just use listenTCP, which is consistent with
what we do elsewhere.

* Clean up the default ACME config

make it look a bit more consistent with everything else, and tweak the defaults
to listen on port 80.

* newsfile
2019-01-30 14:17:55 +00:00

49 lines
1.7 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 logging
import sys
from synapse import python_dependencies # noqa: E402
sys.dont_write_bytecode = True
logger = logging.getLogger(__name__)
try:
python_dependencies.check_requirements()
except python_dependencies.DependencyException as e:
sys.stderr.writelines(e.message)
sys.exit(1)
def check_bind_error(e, address, bind_addresses):
"""
This method checks an exception occurred while binding on 0.0.0.0.
If :: is specified in the bind addresses a warning is shown.
The exception is still raised otherwise.
Binding on both 0.0.0.0 and :: causes an exception on Linux and macOS
because :: binds on both IPv4 and IPv6 (as per RFC 3493).
When binding on 0.0.0.0 after :: this can safely be ignored.
Args:
e (Exception): Exception that was caught.
address (str): Address on which binding was attempted.
bind_addresses (list): Addresses on which the service listens.
"""
if address == '0.0.0.0' and '::' in bind_addresses:
logger.warn('Failed to listen on 0.0.0.0, continuing because listening on [::]')
else:
raise e