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--- Summary: Synapse Twisted → asyncio Migration What's been built (Phases 0-7) — 10 new files, ~3200 lines, 96 tests Every Twisted component has an asyncio-native replacement ready: ┌──────────────────┬───────────────────────────────────────────────┬─────────────────────────────────────────────────────────┬───────────────────────────────────────────────┐ │ Component │ Twisted Original │ asyncio Replacement │ File │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ LoggingContext │ threading.local + Deferred callbacks │ ContextVar + asyncio Task │ synapse/logging/context.py (native functions) │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Async primitives │ ObservableDeferred, Linearizer, ReadWriteLock │ ObservableFuture, NativeLinearizer, NativeReadWriteLock │ synapse/util/async_helpers.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Cache │ DeferredCache │ FutureCache │ synapse/util/caches/future_cache.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Clock │ Clock (Twisted reactor) │ NativeClock (asyncio) │ synapse/util/clock.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Database │ adbapi.ConnectionPool │ NativeConnectionPool (ThreadPoolExecutor) │ synapse/storage/native_database.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ HTTP Client │ treq + Twisted Agent │ aiohttp.ClientSession │ synapse/http/native_client.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ HTTP Server │ JsonResource + Twisted Site │ NativeJsonResource + aiohttp.web │ synapse/http/native_server.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Replication │ LineOnlyReceiver (Twisted Protocol) │ asyncio.StreamReader/Writer │ synapse/replication/tcp/native_protocol.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Event loop │ ISynapseReactor │ ISynapseEventLoop │ synapse/types/__init__.py │ ├──────────────────┼───────────────────────────────────────────────┼─────────────────────────────────────────────────────────┼───────────────────────────────────────────────┤ │ Test helper │ — │ FakeAsyncioLoop │ tests/async_helpers.py │ └──────────────────┴───────────────────────────────────────────────┴─────────────────────────────────────────────────────────┴───────────────────────────────────────────────┘ What's been wired in safely — 224 files changed, 0 regressions - MemoryReactor type hint → Any across 198 test files (cosmetic) - synapse/http/server.py — catches both Twisted and asyncio CancelledError - All 4530 tests still pass (minus the 2 pre-existing failures) What remains for the flag day The actual switchover requires rewriting 5 core files simultaneously, then running a migration script across ~500 files: 1. tests/unittest.py + tests/server.py — switch from twisted.trial.TestCase to unittest.TestCase, MemoryReactorClock to FakeAsyncioLoop, get_success() to asyncio run_until_complete() 2. synapse/logging/context.py — switch current_context() to ContextVar, make_deferred_yieldable() to async, run_in_background() to create_task() 3. synapse/util/async_helpers.py — rename Native* classes to canonical names, remove Deferred-based originals 4. Migration script — update all CancelledError, defer.*, Deferred imports across ~500 files 5. pyproject.toml — remove Twisted dependency This is an atomic change because: ContextVar can't coexist with Twisted's reactor callbacks, make_deferred_yieldable's signature change breaks all callers, and CancelledError is a different class between Twisted and asyncio.
82 lines
3.3 KiB
Python
82 lines
3.3 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 (C) 2024 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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from typing import Any as MemoryReactor # was: MemoryReactor from Twisted
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from synapse.api.urls import LoginSSORedirectURIBuilder
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from synapse.server import HomeServer
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from synapse.util.clock import Clock
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from tests.unittest import HomeserverTestCase
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# a (valid) url with some annoying characters in. %3D is =, %26 is &, %2B is +
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TRICKY_TEST_CLIENT_REDIRECT_URL = 'https://x?<ab c>&q"+%3D%2B"="fö%26=o"'
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class LoginSSORedirectURIBuilderTestCase(HomeserverTestCase):
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def prepare(self, reactor: MemoryReactor, clock: Clock, hs: HomeServer) -> None:
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self.login_sso_redirect_url_builder = LoginSSORedirectURIBuilder(hs.config)
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def test_no_idp_id(self) -> None:
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self.assertEqual(
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self.login_sso_redirect_url_builder.build_login_sso_redirect_uri(
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idp_id=None, client_redirect_url="http://example.com/redirect"
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),
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"https://test/_matrix/client/v3/login/sso/redirect?redirectUrl=http%3A%2F%2Fexample.com%2Fredirect",
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)
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def test_explicit_idp_id(self) -> None:
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self.assertEqual(
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self.login_sso_redirect_url_builder.build_login_sso_redirect_uri(
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idp_id="oidc-github", client_redirect_url="http://example.com/redirect"
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),
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"https://test/_matrix/client/v3/login/sso/redirect/oidc-github?redirectUrl=http%3A%2F%2Fexample.com%2Fredirect",
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)
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def test_tricky_redirect_uri(self) -> None:
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self.assertEqual(
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self.login_sso_redirect_url_builder.build_login_sso_redirect_uri(
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idp_id="oidc-github",
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client_redirect_url=TRICKY_TEST_CLIENT_REDIRECT_URL,
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),
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"https://test/_matrix/client/v3/login/sso/redirect/oidc-github?redirectUrl=https%3A%2F%2Fx%3F%3Cab+c%3E%26q%22%2B%253D%252B%22%3D%22f%C3%B6%2526%3Do%22",
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)
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def test_idp_id_with_slash_is_escaped(self) -> None:
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"""
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Test to make sure that we properly URL encode the IdP ID.
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"""
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self.assertEqual(
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self.login_sso_redirect_url_builder.build_login_sso_redirect_uri(
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idp_id="foo/bar",
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client_redirect_url="http://example.com/redirect",
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),
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"https://test/_matrix/client/v3/login/sso/redirect/foo%2Fbar?redirectUrl=http%3A%2F%2Fexample.com%2Fredirect",
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)
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def test_url_as_idp_id_is_escaped(self) -> None:
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"""
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Test to make sure that we properly URL encode the IdP ID.
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The IdP ID shouldn't be a URL.
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"""
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self.assertEqual(
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self.login_sso_redirect_url_builder.build_login_sso_redirect_uri(
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idp_id="http://should-not-be-url.com/",
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client_redirect_url="http://example.com/redirect",
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),
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"https://test/_matrix/client/v3/login/sso/redirect/http%3A%2F%2Fshould-not-be-url.com%2F?redirectUrl=http%3A%2F%2Fexample.com%2Fredirect",
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)
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