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- # Copyright 2014-2016 OpenMarket Ltd
- # Copyright 2018-2019 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.
- # 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.
-
- """ This is an implementation of a Matrix homeserver.
- """
-
- import os
- import sys
- from typing import Any, Dict
-
- from PIL import ImageFile
-
- from synapse.util.rust import check_rust_lib_up_to_date
- from synapse.util.stringutils import strtobool
-
- # Allow truncated JPEG images to be thumbnailed.
- ImageFile.LOAD_TRUNCATED_IMAGES = True
-
- # Update your remotes folks.
- announcement = """
- Synapse is no longer being developed under the matrix-org organization. See the
- README.rst for more details.
-
- Please update your git remote to pull from element-hq/synapse:
-
- git remote set-url origin git@github.com:element-hq/synapse.git
- """
- print(announcement)
- sys.exit(1)
-
- # Check that we're not running on an unsupported Python version.
- #
- # Note that we use an (unneeded) variable here so that pyupgrade doesn't nuke the
- # if-statement completely.
- py_version = sys.version_info
- if py_version < (3, 8):
- print("Synapse requires Python 3.8 or above.")
- sys.exit(1)
-
- # Allow using the asyncio reactor via env var.
- if strtobool(os.environ.get("SYNAPSE_ASYNC_IO_REACTOR", "0")):
- from incremental import Version
-
- import twisted
-
- # We need a bugfix that is included in Twisted 21.2.0:
- # https://twistedmatrix.com/trac/ticket/9787
- if twisted.version < Version("Twisted", 21, 2, 0):
- print("Using asyncio reactor requires Twisted>=21.2.0")
- sys.exit(1)
-
- import asyncio
-
- from twisted.internet import asyncioreactor
-
- asyncioreactor.install(asyncio.get_event_loop())
-
- # Twisted and canonicaljson will fail to import when this file is executed to
- # get the __version__ during a fresh install. That's OK and subsequent calls to
- # actually start Synapse will import these libraries fine.
- try:
- from twisted.internet import protocol
- from twisted.internet.protocol import Factory
- from twisted.names.dns import DNSDatagramProtocol
-
- protocol.Factory.noisy = False
- Factory.noisy = False
- DNSDatagramProtocol.noisy = False
- except ImportError:
- pass
-
- # Teach canonicaljson how to serialise immutabledicts.
- try:
- from canonicaljson import register_preserialisation_callback
- from immutabledict import immutabledict
-
- def _immutabledict_cb(d: immutabledict) -> Dict[str, Any]:
- try:
- return d._dict
- except Exception:
- # Paranoia: fall back to a `dict()` call, in case a future version of
- # immutabledict removes `_dict` from the implementation.
- return dict(d)
-
- register_preserialisation_callback(immutabledict, _immutabledict_cb)
- except ImportError:
- pass
-
- import synapse.util # noqa: E402
-
- __version__ = synapse.util.SYNAPSE_VERSION
-
- if bool(os.environ.get("SYNAPSE_TEST_PATCH_LOG_CONTEXTS", False)):
- # We import here so that we don't have to install a bunch of deps when
- # running the packaging tox test.
- from synapse.util.patch_inline_callbacks import do_patch
-
- do_patch()
-
-
- check_rust_lib_up_to_date()
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