mirror of
https://github.com/element-hq/synapse.git
synced 2026-11-14 18:18:02 +00:00
Eric Eastwood
5676ce4ab9
As far as I can tell, no one uses it. @reivilibre also asked this in [`#synapse-dev:matrix.org`](https://matrix.to/#/!i5D5LLct_DYG-4hQprLzrxdbZ580U9UB6AEgFnk6rZQ/$NrW3QmLEGgcjNqW-SaPZrS-EVwq1-9fO_Ds_1QIZX0E?via=element.io&via=matrix.org&via=starstruck.systems) and [`#element-backend-internal:matrix.org`](https://matrix.to/#/!SGNQGPGUwtcPBUotTL:matrix.org/$_rh3S79z4q1Q93SJ3ncQ_ZUzudks4Egan5dwutH2AKg?via=jki.re&via=element.io&via=matrix.org) on 2026-02-20 with a couple of 🔥 emoji reactions in the public channel. As long as I've worked on Synapse, as far as I know, I've never used this for local dev. We no longer use this in CI. Noticed the file again while working on https://github.com/element-hq/synapse/pull/20359
108 lines
3.4 KiB
Python
108 lines
3.4 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright 2023 The Matrix.org Foundation C.I.C.
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# Copyright 2014-2016 OpenMarket Ltd
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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"""This is an implementation of a Matrix homeserver."""
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import os
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import sys
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from typing import Any
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from PIL import ImageFile
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from synapse.util.rust import check_rust_lib_up_to_date
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from synapse.util.stringutils import strtobool
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# Allow truncated JPEG images to be thumbnailed.
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ImageFile.LOAD_TRUNCATED_IMAGES = True
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# Check that we're not running on an unsupported Python version.
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#
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# Note that we use an (unneeded) variable here so that pyupgrade doesn't nuke the
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# if-statement completely.
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py_version = sys.version_info
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if py_version < (3, 11):
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print("Synapse requires Python 3.11 or above.")
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sys.exit(1)
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# Allow using the asyncio reactor via env var.
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if strtobool(os.environ.get("SYNAPSE_ASYNC_IO_REACTOR", "0")):
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import asyncio
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from twisted.internet import asyncioreactor
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loop = asyncio.new_event_loop()
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asyncio.set_event_loop(loop)
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asyncioreactor.install(loop)
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# Twisted and canonicaljson will fail to import when this file is executed to
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# get the __version__ during a fresh install. That's OK and subsequent calls to
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# actually start Synapse will import these libraries fine.
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try:
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from twisted.internet import protocol
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from twisted.internet.protocol import Factory
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from twisted.names.dns import DNSDatagramProtocol
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protocol.Factory.noisy = False
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Factory.noisy = False
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DNSDatagramProtocol.noisy = False
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except ImportError:
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pass
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# Teach canonicaljson how to serialise immutabledicts and JsonObjects.
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try:
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from canonicaljson import register_preserialisation_callback
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from immutabledict import immutabledict
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def _immutabledict_cb(d: immutabledict) -> dict[str, Any]:
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try:
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return d._dict
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except Exception:
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# Paranoia: fall back to a `dict()` call, in case a future version of
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# immutabledict removes `_dict` from the implementation.
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return dict(d)
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register_preserialisation_callback(immutabledict, _immutabledict_cb)
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# Teach canonicaljson how to serialise JsonObjects, which is just to
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# convert them to dicts.
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from synapse.synapse_rust.events import JsonObject # noqa: E402
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register_preserialisation_callback(JsonObject, lambda obj: dict(obj))
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except ImportError:
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pass
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import synapse.util # noqa: E402
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__version__ = synapse.util.SYNAPSE_VERSION
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# Introduced for usage with SyTest to check that log contexts are correctly handled when
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# running a real homeserver. (our own unit tests apply the same patch unconditionally,
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# in `tests/__init__.py`.)
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if bool(os.environ.get("SYNAPSE_TEST_PATCH_LOG_CONTEXTS", False)):
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from synapse.util.patch_inline_callbacks import do_patch
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do_patch()
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check_rust_lib_up_to_date()
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