diff options
| -rw-r--r-- | changelog.d/15052.misc | 1 | ||||
| -rw-r--r-- | poetry.lock | 69 | ||||
| -rw-r--r-- | synapse/handlers/auth.py | 2 | ||||
| -rw-r--r-- | synapse/handlers/ui_auth/checkers.py | 18 | ||||
| -rw-r--r-- | synapse/http/matrixfederationclient.py | 2 | ||||
| -rw-r--r-- | synapse/logging/opentracing.py | 24 | ||||
| -rw-r--r-- | synapse/rest/media/v1/_base.py | 9 | ||||
| -rw-r--r-- | synapse/storage/engines/__init__.py | 4 | ||||
| -rw-r--r-- | synapse/storage/types.py | 74 | ||||
| -rw-r--r-- | synapse/streams/__init__.py | 7 | ||||
| -rw-r--r-- | tests/handlers/test_register.py | 4 | ||||
| -rw-r--r-- | tests/http/federation/test_matrix_federation_agent.py | 11 | ||||
| -rw-r--r-- | tests/http/test_proxyagent.py | 40 | ||||
| -rw-r--r-- | tests/logging/test_remote_handler.py | 17 | ||||
| -rw-r--r-- | tests/rest/client/test_auth.py | 3 | ||||
| -rw-r--r-- | tests/rest/client/test_third_party_rules.py | 2 | ||||
| -rw-r--r-- | tests/utils.py | 26 |
17 files changed, 209 insertions, 104 deletions
diff --git a/changelog.d/15052.misc b/changelog.d/15052.misc new file mode 100644 index 0000000000..93ceaeafc9 --- /dev/null +++ b/changelog.d/15052.misc @@ -0,0 +1 @@ +Improve type hints. diff --git a/poetry.lock b/poetry.lock index e534b30d2b..eb1e3d797b 100644 --- a/poetry.lock +++ b/poetry.lock @@ -146,14 +146,14 @@ css = ["tinycss2 (>=1.1.0,<1.2)"] [[package]] name = "canonicaljson" -version = "1.6.4" +version = "1.6.5" description = "Canonical JSON" category = "main" optional = false python-versions = ">=3.7" files = [ - {file = "canonicaljson-1.6.4-py3-none-any.whl", hash = "sha256:55d282853b4245dbcd953fe54c39b91571813d7c44e1dbf66e3c4f97ff134a48"}, - {file = "canonicaljson-1.6.4.tar.gz", hash = "sha256:6c09b2119511f30eb1126cfcd973a10824e20f1cfd25039cde3d1218dd9c8d8f"}, + {file = "canonicaljson-1.6.5-py3-none-any.whl", hash = "sha256:806ea6f2cbb7405d20259e1c36dd1214ba5c242fa9165f5bd0bf2081f82c23fb"}, + {file = "canonicaljson-1.6.5.tar.gz", hash = "sha256:68dfc157b011e07d94bf74b5d4ccc01958584ed942d9dfd5fdd706609e81cd4b"}, ] [package.dependencies] @@ -1146,36 +1146,38 @@ files = [ [[package]] name = "mypy" -version = "0.981" +version = "1.0.0" description = "Optional static typing for Python" category = "dev" optional = false python-versions = ">=3.7" files = [ - {file = "mypy-0.981-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:4bc460e43b7785f78862dab78674e62ec3cd523485baecfdf81a555ed29ecfa0"}, - {file = "mypy-0.981-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:756fad8b263b3ba39e4e204ee53042671b660c36c9017412b43af210ddee7b08"}, - {file = "mypy-0.981-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:a16a0145d6d7d00fbede2da3a3096dcc9ecea091adfa8da48fa6a7b75d35562d"}, - {file = "mypy-0.981-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:ce65f70b14a21fdac84c294cde75e6dbdabbcff22975335e20827b3b94bdbf49"}, - {file = "mypy-0.981-cp310-cp310-musllinux_1_1_x86_64.whl", hash = "sha256:6e35d764784b42c3e256848fb8ed1d4292c9fc0098413adb28d84974c095b279"}, - {file = "mypy-0.981-cp310-cp310-win_amd64.whl", hash = "sha256:e53773073c864d5f5cec7f3fc72fbbcef65410cde8cc18d4f7242dea60dac52e"}, - {file = "mypy-0.981-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:6ee196b1d10b8b215e835f438e06965d7a480f6fe016eddbc285f13955cca659"}, - {file = "mypy-0.981-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:8ad21d4c9d3673726cf986ea1d0c9fb66905258709550ddf7944c8f885f208be"}, - {file = "mypy-0.981-cp37-cp37m-musllinux_1_1_x86_64.whl", hash = "sha256:d1debb09043e1f5ee845fa1e96d180e89115b30e47c5d3ce53bc967bab53f62d"}, - {file = "mypy-0.981-cp37-cp37m-win_amd64.whl", hash = "sha256:9f362470a3480165c4c6151786b5379351b790d56952005be18bdbdd4c7ce0ae"}, - {file = "mypy-0.981-cp38-cp38-macosx_10_9_universal2.whl", hash = "sha256:c9e0efb95ed6ca1654951bd5ec2f3fa91b295d78bf6527e026529d4aaa1e0c30"}, - {file = "mypy-0.981-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:e178eaffc3c5cd211a87965c8c0df6da91ed7d258b5fc72b8e047c3771317ddb"}, - {file = "mypy-0.981-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:06e1eac8d99bd404ed8dd34ca29673c4346e76dd8e612ea507763dccd7e13c7a"}, - {file = "mypy-0.981-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:fa38f82f53e1e7beb45557ff167c177802ba7b387ad017eab1663d567017c8ee"}, - {file = "mypy-0.981-cp38-cp38-musllinux_1_1_x86_64.whl", hash = "sha256:64e1f6af81c003f85f0dfed52db632817dabb51b65c0318ffbf5ff51995bbb08"}, - {file = "mypy-0.981-cp38-cp38-win_amd64.whl", hash = "sha256:e1acf62a8c4f7c092462c738aa2c2489e275ed386320c10b2e9bff31f6f7e8d6"}, - {file = "mypy-0.981-cp39-cp39-macosx_10_9_universal2.whl", hash = "sha256:b6ede64e52257931315826fdbfc6ea878d89a965580d1a65638ef77cb551f56d"}, - {file = "mypy-0.981-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:eb3978b191b9fa0488524bb4ffedf2c573340e8c2b4206fc191d44c7093abfb7"}, - {file = "mypy-0.981-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:77f8fcf7b4b3cc0c74fb33ae54a4cd00bb854d65645c48beccf65fa10b17882c"}, - {file = "mypy-0.981-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:f64d2ce043a209a297df322eb4054dfbaa9de9e8738291706eaafda81ab2b362"}, - {file = "mypy-0.981-cp39-cp39-musllinux_1_1_x86_64.whl", hash = "sha256:2ee3dbc53d4df7e6e3b1c68ac6a971d3a4fb2852bf10a05fda228721dd44fae1"}, - {file = "mypy-0.981-cp39-cp39-win_amd64.whl", hash = "sha256:8e8e49aa9cc23aa4c926dc200ce32959d3501c4905147a66ce032f05cb5ecb92"}, - {file = "mypy-0.981-py3-none-any.whl", hash = "sha256:794f385653e2b749387a42afb1e14c2135e18daeb027e0d97162e4b7031210f8"}, - {file = "mypy-0.981.tar.gz", hash = "sha256:ad77c13037d3402fbeffda07d51e3f228ba078d1c7096a73759c9419ea031bf4"}, + {file = "mypy-1.0.0-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:e0626db16705ab9f7fa6c249c017c887baf20738ce7f9129da162bb3075fc1af"}, + {file = "mypy-1.0.0-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:1ace23f6bb4aec4604b86c4843276e8fa548d667dbbd0cb83a3ae14b18b2db6c"}, + {file = "mypy-1.0.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:87edfaf344c9401942883fad030909116aa77b0fa7e6e8e1c5407e14549afe9a"}, + {file = "mypy-1.0.0-cp310-cp310-musllinux_1_1_x86_64.whl", hash = "sha256:0ab090d9240d6b4e99e1fa998c2d0aa5b29fc0fb06bd30e7ad6183c95fa07593"}, + {file = "mypy-1.0.0-cp310-cp310-win_amd64.whl", hash = "sha256:7cc2c01dfc5a3cbddfa6c13f530ef3b95292f926329929001d45e124342cd6b7"}, + {file = "mypy-1.0.0-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:14d776869a3e6c89c17eb943100f7868f677703c8a4e00b3803918f86aafbc52"}, + {file = "mypy-1.0.0-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:bb2782a036d9eb6b5a6efcdda0986774bf798beef86a62da86cb73e2a10b423d"}, + {file = "mypy-1.0.0-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:5cfca124f0ac6707747544c127880893ad72a656e136adc935c8600740b21ff5"}, + {file = "mypy-1.0.0-cp311-cp311-musllinux_1_1_x86_64.whl", hash = "sha256:8845125d0b7c57838a10fd8925b0f5f709d0e08568ce587cc862aacce453e3dd"}, + {file = "mypy-1.0.0-cp311-cp311-win_amd64.whl", hash = "sha256:01b1b9e1ed40544ef486fa8ac022232ccc57109f379611633ede8e71630d07d2"}, + {file = "mypy-1.0.0-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:c7cf862aef988b5fbaa17764ad1d21b4831436701c7d2b653156a9497d92c83c"}, + {file = "mypy-1.0.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:5cd187d92b6939617f1168a4fe68f68add749902c010e66fe574c165c742ed88"}, + {file = "mypy-1.0.0-cp37-cp37m-musllinux_1_1_x86_64.whl", hash = "sha256:4e5175026618c178dfba6188228b845b64131034ab3ba52acaffa8f6c361f805"}, + {file = "mypy-1.0.0-cp37-cp37m-win_amd64.whl", hash = "sha256:2f6ac8c87e046dc18c7d1d7f6653a66787a4555085b056fe2d599f1f1a2a2d21"}, + {file = "mypy-1.0.0-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:7306edca1c6f1b5fa0bc9aa645e6ac8393014fa82d0fa180d0ebc990ebe15964"}, + {file = "mypy-1.0.0-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:3cfad08f16a9c6611e6143485a93de0e1e13f48cfb90bcad7d5fde1c0cec3d36"}, + {file = "mypy-1.0.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:67cced7f15654710386e5c10b96608f1ee3d5c94ca1da5a2aad5889793a824c1"}, + {file = "mypy-1.0.0-cp38-cp38-musllinux_1_1_x86_64.whl", hash = "sha256:a86b794e8a56ada65c573183756eac8ac5b8d3d59daf9d5ebd72ecdbb7867a43"}, + {file = "mypy-1.0.0-cp38-cp38-win_amd64.whl", hash = "sha256:50979d5efff8d4135d9db293c6cb2c42260e70fb010cbc697b1311a4d7a39ddb"}, + {file = "mypy-1.0.0-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:3ae4c7a99e5153496243146a3baf33b9beff714464ca386b5f62daad601d87af"}, + {file = "mypy-1.0.0-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:5e398652d005a198a7f3c132426b33c6b85d98aa7dc852137a2a3be8890c4072"}, + {file = "mypy-1.0.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:be78077064d016bc1b639c2cbcc5be945b47b4261a4f4b7d8923f6c69c5c9457"}, + {file = "mypy-1.0.0-cp39-cp39-musllinux_1_1_x86_64.whl", hash = "sha256:92024447a339400ea00ac228369cd242e988dd775640755fa4ac0c126e49bb74"}, + {file = "mypy-1.0.0-cp39-cp39-win_amd64.whl", hash = "sha256:fe523fcbd52c05040c7bee370d66fee8373c5972171e4fbc323153433198592d"}, + {file = "mypy-1.0.0-py3-none-any.whl", hash = "sha256:2efa963bdddb27cb4a0d42545cd137a8d2b883bd181bbc4525b568ef6eca258f"}, + {file = "mypy-1.0.0.tar.gz", hash = "sha256:f34495079c8d9da05b183f9f7daec2878280c2ad7cc81da686ef0b484cea2ecf"}, ] [package.dependencies] @@ -1186,6 +1188,7 @@ typing-extensions = ">=3.10" [package.extras] dmypy = ["psutil (>=4.0)"] +install-types = ["pip"] python2 = ["typed-ast (>=1.4.0,<2)"] reports = ["lxml"] @@ -1203,18 +1206,18 @@ files = [ [[package]] name = "mypy-zope" -version = "0.3.11" +version = "0.9.0" description = "Plugin for mypy to support zope interfaces" category = "dev" optional = false python-versions = "*" files = [ - {file = "mypy-zope-0.3.11.tar.gz", hash = "sha256:d4255f9f04d48c79083bbd4e2fea06513a6ac7b8de06f8c4ce563fd85142ca05"}, - {file = "mypy_zope-0.3.11-py3-none-any.whl", hash = "sha256:ec080a6508d1f7805c8d2054f9fdd13c849742ce96803519e1fdfa3d3cab7140"}, + {file = "mypy-zope-0.9.0.tar.gz", hash = "sha256:88bf6cd056e38b338e6956055958a7805b4ff84404ccd99e29883a3647a1aeb3"}, + {file = "mypy_zope-0.9.0-py3-none-any.whl", hash = "sha256:e1bb4b57084f76ff8a154a3e07880a1af2ac6536c491dad4b143d529f72c5d15"}, ] [package.dependencies] -mypy = "0.981" +mypy = "1.0.0" "zope.interface" = "*" "zope.schema" = "*" @@ -1705,7 +1708,7 @@ files = [ cffi = ">=1.4.1" [package.extras] -docs = ["sphinx (>=1.6.5)", "sphinx-rtd-theme"] +docs = ["sphinx (>=1.6.5)", "sphinx_rtd_theme"] tests = ["hypothesis (>=3.27.0)", "pytest (>=3.2.1,!=3.3.0)"] [[package]] diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py index 57a6854b1e..cf12b55d21 100644 --- a/synapse/handlers/auth.py +++ b/synapse/handlers/auth.py @@ -201,7 +201,7 @@ class AuthHandler: for auth_checker_class in INTERACTIVE_AUTH_CHECKERS: inst = auth_checker_class(hs) if inst.is_enabled(): - self.checkers[inst.AUTH_TYPE] = inst # type: ignore + self.checkers[inst.AUTH_TYPE] = inst self.bcrypt_rounds = hs.config.registration.bcrypt_rounds diff --git a/synapse/handlers/ui_auth/checkers.py b/synapse/handlers/ui_auth/checkers.py index 332edcca24..78a75bfed6 100644 --- a/synapse/handlers/ui_auth/checkers.py +++ b/synapse/handlers/ui_auth/checkers.py @@ -13,7 +13,8 @@ # limitations under the License. import logging -from typing import TYPE_CHECKING, Any +from abc import ABC, abstractmethod +from typing import TYPE_CHECKING, Any, ClassVar, Sequence, Type from twisted.web.client import PartialDownloadError @@ -27,19 +28,28 @@ if TYPE_CHECKING: logger = logging.getLogger(__name__) -class UserInteractiveAuthChecker: +class UserInteractiveAuthChecker(ABC): """Abstract base class for an interactive auth checker""" - def __init__(self, hs: "HomeServer"): + # This should really be an "abstract class property", i.e. it should + # be an error to instantiate a subclass that doesn't specify an AUTH_TYPE. + # But calling this a `ClassVar` is simpler than a decorator stack of + # @property @abstractmethod and @classmethod (if that's even the right order). + AUTH_TYPE: ClassVar[str] + + def __init__(self, hs: "HomeServer"): # noqa: B027 pass + @abstractmethod def is_enabled(self) -> bool: """Check if the configuration of the homeserver allows this checker to work Returns: True if this login type is enabled. """ + raise NotImplementedError() + @abstractmethod async def check_auth(self, authdict: dict, clientip: str) -> Any: """Given the authentication dict from the client, attempt to check this step @@ -304,7 +314,7 @@ class RegistrationTokenAuthChecker(UserInteractiveAuthChecker): ) -INTERACTIVE_AUTH_CHECKERS = [ +INTERACTIVE_AUTH_CHECKERS: Sequence[Type[UserInteractiveAuthChecker]] = [ DummyAuthChecker, TermsAuthChecker, RecaptchaAuthChecker, diff --git a/synapse/http/matrixfederationclient.py b/synapse/http/matrixfederationclient.py index b92f1d3d1a..312aab4dcc 100644 --- a/synapse/http/matrixfederationclient.py +++ b/synapse/http/matrixfederationclient.py @@ -1267,7 +1267,7 @@ class MatrixFederationHttpClient: def _flatten_response_never_received(e: BaseException) -> str: if hasattr(e, "reasons"): reasons = ", ".join( - _flatten_response_never_received(f.value) for f in e.reasons # type: ignore[attr-defined] + _flatten_response_never_received(f.value) for f in e.reasons ) return "%s:[%s]" % (type(e).__name__, reasons) diff --git a/synapse/logging/opentracing.py b/synapse/logging/opentracing.py index 6c7cf1b294..5aed71262f 100644 --- a/synapse/logging/opentracing.py +++ b/synapse/logging/opentracing.py @@ -188,7 +188,7 @@ from typing import ( ) import attr -from typing_extensions import ParamSpec +from typing_extensions import Concatenate, ParamSpec from twisted.internet import defer from twisted.web.http import Request @@ -445,7 +445,7 @@ def init_tracer(hs: "HomeServer") -> None: opentracing = None # type: ignore[assignment] return - if not opentracing or not JaegerConfig: + if opentracing is None or JaegerConfig is None: raise ConfigError( "The server has been configured to use opentracing but opentracing is not " "installed." @@ -872,7 +872,7 @@ def extract_text_map(carrier: Dict[str, str]) -> Optional["opentracing.SpanConte def _custom_sync_async_decorator( func: Callable[P, R], - wrapping_logic: Callable[[Callable[P, R], Any, Any], ContextManager[None]], + wrapping_logic: Callable[Concatenate[Callable[P, R], P], ContextManager[None]], ) -> Callable[P, R]: """ Decorates a function that is sync or async (coroutines), or that returns a Twisted @@ -902,10 +902,14 @@ def _custom_sync_async_decorator( """ if inspect.iscoroutinefunction(func): - + # In this branch, R = Awaitable[RInner], for some other type RInner @wraps(func) - async def _wrapper(*args: P.args, **kwargs: P.kwargs) -> R: + async def _wrapper( + *args: P.args, **kwargs: P.kwargs + ) -> Any: # Return type is RInner with wrapping_logic(func, *args, **kwargs): + # type-ignore: func() returns R, but mypy doesn't know that R is + # Awaitable here. return await func(*args, **kwargs) # type: ignore[misc] else: @@ -972,7 +976,11 @@ def trace_with_opname( if not opentracing: return func - return _custom_sync_async_decorator(func, _wrapping_logic) + # type-ignore: mypy seems to be confused by the ParamSpecs here. + # I think the problem is https://github.com/python/mypy/issues/12909 + return _custom_sync_async_decorator( + func, _wrapping_logic # type: ignore[arg-type] + ) return _decorator @@ -1018,7 +1026,9 @@ def tag_args(func: Callable[P, R]) -> Callable[P, R]: set_tag(SynapseTags.FUNC_KWARGS, str(kwargs)) yield - return _custom_sync_async_decorator(func, _wrapping_logic) + # type-ignore: mypy seems to be confused by the ParamSpecs here. + # I think the problem is https://github.com/python/mypy/issues/12909 + return _custom_sync_async_decorator(func, _wrapping_logic) # type: ignore[arg-type] @contextlib.contextmanager diff --git a/synapse/rest/media/v1/_base.py b/synapse/rest/media/v1/_base.py index d30878f704..6e035afcce 100644 --- a/synapse/rest/media/v1/_base.py +++ b/synapse/rest/media/v1/_base.py @@ -16,6 +16,7 @@ import logging import os import urllib +from abc import ABC, abstractmethod from types import TracebackType from typing import Awaitable, Dict, Generator, List, Optional, Tuple, Type @@ -284,13 +285,14 @@ async def respond_with_responder( finish_request(request) -class Responder: +class Responder(ABC): """Represents a response that can be streamed to the requester. Responder is a context manager which *must* be used, so that any resources held can be cleaned up. """ + @abstractmethod def write_to_consumer(self, consumer: IConsumer) -> Awaitable: """Stream response into consumer @@ -300,11 +302,12 @@ class Responder: Returns: Resolves once the response has finished being written """ + raise NotImplementedError() - def __enter__(self) -> None: + def __enter__(self) -> None: # noqa: B027 pass - def __exit__( + def __exit__( # noqa: B027 self, exc_type: Optional[Type[BaseException]], exc_val: Optional[BaseException], diff --git a/synapse/storage/engines/__init__.py b/synapse/storage/engines/__init__.py index a182e8a098..d1ccb7390a 100644 --- a/synapse/storage/engines/__init__.py +++ b/synapse/storage/engines/__init__.py @@ -25,7 +25,7 @@ try: except ImportError: class PostgresEngine(BaseDatabaseEngine): # type: ignore[no-redef] - def __new__(cls, *args: object, **kwargs: object) -> NoReturn: # type: ignore[misc] + def __new__(cls, *args: object, **kwargs: object) -> NoReturn: raise RuntimeError( f"Cannot create {cls.__name__} -- psycopg2 module is not installed" ) @@ -36,7 +36,7 @@ try: except ImportError: class Sqlite3Engine(BaseDatabaseEngine): # type: ignore[no-redef] - def __new__(cls, *args: object, **kwargs: object) -> NoReturn: # type: ignore[misc] + def __new__(cls, *args: object, **kwargs: object) -> NoReturn: raise RuntimeError( f"Cannot create {cls.__name__} -- sqlite3 module is not installed" ) diff --git a/synapse/storage/types.py b/synapse/storage/types.py index 0031df1e06..56a0048539 100644 --- a/synapse/storage/types.py +++ b/synapse/storage/types.py @@ -12,7 +12,18 @@ # See the License for the specific language governing permissions and # limitations under the License. from types import TracebackType -from typing import Any, Iterator, List, Mapping, Optional, Sequence, Tuple, Type, Union +from typing import ( + Any, + Callable, + Iterator, + List, + Mapping, + Optional, + Sequence, + Tuple, + Type, + Union, +) from typing_extensions import Protocol @@ -112,15 +123,35 @@ class DBAPI2Module(Protocol): # extends from this hierarchy. See # https://docs.python.org/3/library/sqlite3.html?highlight=sqlite3#exceptions # https://www.postgresql.org/docs/current/errcodes-appendix.html#ERRCODES-TABLE - Warning: Type[Exception] - Error: Type[Exception] + # + # Note: rather than + # x: T + # we write + # @property + # def x(self) -> T: ... + # which expresses that the protocol attribute `x` is read-only. The mypy docs + # https://mypy.readthedocs.io/en/latest/common_issues.html#covariant-subtyping-of-mutable-protocol-members-is-rejected + # explain why this is necessary for safety. TL;DR: we shouldn't be able to write + # to `x`, only read from it. See also https://github.com/python/mypy/issues/6002 . + @property + def Warning(self) -> Type[Exception]: + ... + + @property + def Error(self) -> Type[Exception]: + ... # Errors are divided into `InterfaceError`s (something went wrong in the database # driver) and `DatabaseError`s (something went wrong in the database). These are # both subclasses of `Error`, but we can't currently express this in type # annotations due to https://github.com/python/mypy/issues/8397 - InterfaceError: Type[Exception] - DatabaseError: Type[Exception] + @property + def InterfaceError(self) -> Type[Exception]: + ... + + @property + def DatabaseError(self) -> Type[Exception]: + ... # Everything below is a subclass of `DatabaseError`. @@ -128,7 +159,9 @@ class DBAPI2Module(Protocol): # - An integer was too big for its data type. # - An invalid date time was provided. # - A string contained a null code point. - DataError: Type[Exception] + @property + def DataError(self) -> Type[Exception]: + ... # Roughly: something went wrong in the database, but it's not within the application # programmer's control. Examples: @@ -138,28 +171,45 @@ class DBAPI2Module(Protocol): # - A serialisation failure occurred. # - The database ran out of resources, such as storage, memory, connections, etc. # - The database encountered an error from the operating system. - OperationalError: Type[Exception] + @property + def OperationalError(self) -> Type[Exception]: + ... # Roughly: we've given the database data which breaks a rule we asked it to enforce. # Examples: # - Stop, criminal scum! You violated the foreign key constraint # - Also check constraints, non-null constraints, etc. - IntegrityError: Type[Exception] + @property + def IntegrityError(self) -> Type[Exception]: + ... # Roughly: something went wrong within the database server itself. - InternalError: Type[Exception] + @property + def InternalError(self) -> Type[Exception]: + ... # Roughly: the application did something silly that needs to be fixed. Examples: # - We don't have permissions to do something. # - We tried to create a table with duplicate column names. # - We tried to use a reserved name. # - We referred to a column that doesn't exist. - ProgrammingError: Type[Exception] + @property + def ProgrammingError(self) -> Type[Exception]: + ... # Roughly: we've tried to do something that this database doesn't support. - NotSupportedError: Type[Exception] + @property + def NotSupportedError(self) -> Type[Exception]: + ... - def connect(self, **parameters: object) -> Connection: + # We originally wrote + # def connect(self, *args, **kwargs) -> Connection: ... + # But mypy doesn't seem to like that because sqlite3.connect takes a mandatory + # positional argument. We can't make that part of the signature though, because + # psycopg2.connect doesn't have a mandatory positional argument. Instead, we use + # the following slightly unusual workaround. + @property + def connect(self) -> Callable[..., Connection]: ... diff --git a/synapse/streams/__init__.py b/synapse/streams/__init__.py index c6c8a0315c..8a48ffc48d 100644 --- a/synapse/streams/__init__.py +++ b/synapse/streams/__init__.py @@ -11,7 +11,7 @@ # 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. - +from abc import ABC, abstractmethod from typing import Generic, List, Optional, Tuple, TypeVar from synapse.types import StrCollection, UserID @@ -22,7 +22,8 @@ K = TypeVar("K") R = TypeVar("R") -class EventSource(Generic[K, R]): +class EventSource(ABC, Generic[K, R]): + @abstractmethod async def get_new_events( self, user: UserID, @@ -32,4 +33,4 @@ class EventSource(Generic[K, R]): is_guest: bool, explicit_room_id: Optional[str] = None, ) -> Tuple[List[R], K]: - ... + raise NotImplementedError() diff --git a/tests/handlers/test_register.py b/tests/handlers/test_register.py index 782ef09cf4..1db99b3c00 100644 --- a/tests/handlers/test_register.py +++ b/tests/handlers/test_register.py @@ -62,7 +62,7 @@ class TestSpamChecker: request_info: Collection[Tuple[str, str]], auth_provider_id: Optional[str], ) -> RegistrationBehaviour: - pass + return RegistrationBehaviour.ALLOW class DenyAll(TestSpamChecker): @@ -111,7 +111,7 @@ class TestLegacyRegistrationSpamChecker: username: Optional[str], request_info: Collection[Tuple[str, str]], ) -> RegistrationBehaviour: - pass + return RegistrationBehaviour.ALLOW class LegacyAllowAll(TestLegacyRegistrationSpamChecker): diff --git a/tests/http/federation/test_matrix_federation_agent.py b/tests/http/federation/test_matrix_federation_agent.py index acfdcd3bca..d27422515c 100644 --- a/tests/http/federation/test_matrix_federation_agent.py +++ b/tests/http/federation/test_matrix_federation_agent.py @@ -63,7 +63,7 @@ from tests.http import ( get_test_ca_cert_file, ) from tests.server import FakeTransport, ThreadedMemoryReactorClock -from tests.utils import default_config +from tests.utils import checked_cast, default_config logger = logging.getLogger(__name__) @@ -146,8 +146,10 @@ class MatrixFederationAgentTests(unittest.TestCase): # # Normally this would be done by the TCP socket code in Twisted, but we are # stubbing that out here. - client_protocol = client_factory.buildProtocol(dummy_address) - assert isinstance(client_protocol, _WrappingProtocol) + # NB: we use a checked_cast here to workaround https://github.com/Shoobx/mypy-zope/issues/91) + client_protocol = checked_cast( + _WrappingProtocol, client_factory.buildProtocol(dummy_address) + ) client_protocol.makeConnection( FakeTransport(server_protocol, self.reactor, client_protocol) ) @@ -446,7 +448,6 @@ class MatrixFederationAgentTests(unittest.TestCase): server_ssl_protocol = _wrap_server_factory_for_tls( _get_test_protocol_factory() ).buildProtocol(dummy_address) - assert isinstance(server_ssl_protocol, TLSMemoryBIOProtocol) # Tell the HTTP server to send outgoing traffic back via the proxy's transport. proxy_server_transport = proxy_server.transport @@ -1529,7 +1530,7 @@ def _check_logcontext(context: LoggingContextOrSentinel) -> None: def _wrap_server_factory_for_tls( factory: IProtocolFactory, sanlist: Optional[List[bytes]] = None -) -> IProtocolFactory: +) -> TLSMemoryBIOFactory: """Wrap an existing Protocol Factory with a test TLSMemoryBIOFactory The resultant factory will create a TLS server which presents a certificate signed by our test CA, valid for the domains in `sanlist` diff --git a/tests/http/test_proxyagent.py b/tests/http/test_proxyagent.py index a817940730..22fdc7f5f2 100644 --- a/tests/http/test_proxyagent.py +++ b/tests/http/test_proxyagent.py @@ -43,6 +43,7 @@ from tests.http import ( ) from tests.server import FakeTransport, ThreadedMemoryReactorClock from tests.unittest import TestCase +from tests.utils import checked_cast logger = logging.getLogger(__name__) @@ -620,7 +621,6 @@ class MatrixFederationAgentTests(TestCase): server_ssl_protocol = _wrap_server_factory_for_tls( _get_test_protocol_factory() ).buildProtocol(dummy_address) - assert isinstance(server_ssl_protocol, TLSMemoryBIOProtocol) # Tell the HTTP server to send outgoing traffic back via the proxy's transport. proxy_server_transport = proxy_server.transport @@ -757,12 +757,14 @@ class MatrixFederationAgentTests(TestCase): assert isinstance(proxy_server, HTTPChannel) # fish the transports back out so that we can do the old switcheroo - s2c_transport = proxy_server.transport - assert isinstance(s2c_transport, FakeTransport) - client_protocol = s2c_transport.other - assert isinstance(client_protocol, _WrappingProtocol) - c2s_transport = client_protocol.transport - assert isinstance(c2s_transport, FakeTransport) + # To help mypy out with the various Protocols and wrappers and mocks, we do + # some explicit casting. Without the casts, we hit the bug I reported at + # https://github.com/Shoobx/mypy-zope/issues/91 . + # We also double-checked these casts at runtime (test-time) because I found it + # quite confusing to deduce these types in the first place! + s2c_transport = checked_cast(FakeTransport, proxy_server.transport) + client_protocol = checked_cast(_WrappingProtocol, s2c_transport.other) + c2s_transport = checked_cast(FakeTransport, client_protocol.transport) # the FakeTransport is async, so we need to pump the reactor self.reactor.advance(0) @@ -822,9 +824,9 @@ class MatrixFederationAgentTests(TestCase): @patch.dict(os.environ, {"http_proxy": "proxy.com:8888"}) def test_proxy_with_no_scheme(self) -> None: http_proxy_agent = ProxyAgent(self.reactor, use_proxy=True) - assert isinstance(http_proxy_agent.http_proxy_endpoint, HostnameEndpoint) - self.assertEqual(http_proxy_agent.http_proxy_endpoint._hostStr, "proxy.com") - self.assertEqual(http_proxy_agent.http_proxy_endpoint._port, 8888) + proxy_ep = checked_cast(HostnameEndpoint, http_proxy_agent.http_proxy_endpoint) + self.assertEqual(proxy_ep._hostStr, "proxy.com") + self.assertEqual(proxy_ep._port, 8888) @patch.dict(os.environ, {"http_proxy": "socks://proxy.com:8888"}) def test_proxy_with_unsupported_scheme(self) -> None: @@ -834,25 +836,21 @@ class MatrixFederationAgentTests(TestCase): @patch.dict(os.environ, {"http_proxy": "http://proxy.com:8888"}) def test_proxy_with_http_scheme(self) -> None: http_proxy_agent = ProxyAgent(self.reactor, use_proxy=True) - assert isinstance(http_proxy_agent.http_proxy_endpoint, HostnameEndpoint) - self.assertEqual(http_proxy_agent.http_proxy_endpoint._hostStr, "proxy.com") - self.assertEqual(http_proxy_agent.http_proxy_endpoint._port, 8888) + proxy_ep = checked_cast(HostnameEndpoint, http_proxy_agent.http_proxy_endpoint) + self.assertEqual(proxy_ep._hostStr, "proxy.com") + self.assertEqual(proxy_ep._port, 8888) @patch.dict(os.environ, {"http_proxy": "https://proxy.com:8888"}) def test_proxy_with_https_scheme(self) -> None: https_proxy_agent = ProxyAgent(self.reactor, use_proxy=True) - assert isinstance(https_proxy_agent.http_proxy_endpoint, _WrapperEndpoint) - self.assertEqual( - https_proxy_agent.http_proxy_endpoint._wrappedEndpoint._hostStr, "proxy.com" - ) - self.assertEqual( - https_proxy_agent.http_proxy_endpoint._wrappedEndpoint._port, 8888 - ) + proxy_ep = checked_cast(_WrapperEndpoint, https_proxy_agent.http_proxy_endpoint) + self.assertEqual(proxy_ep._wrappedEndpoint._hostStr, "proxy.com") + self.assertEqual(proxy_ep._wrappedEndpoint._port, 8888) def _wrap_server_factory_for_tls( factory: IProtocolFactory, sanlist: Optional[List[bytes]] = None -) -> IProtocolFactory: +) -> TLSMemoryBIOFactory: """Wrap an existing Protocol Factory with a test TLSMemoryBIOFactory The resultant factory will create a TLS server which presents a certificate diff --git a/tests/logging/test_remote_handler.py b/tests/logging/test_remote_handler.py index c08954d887..5191e31a8a 100644 --- a/tests/logging/test_remote_handler.py +++ b/tests/logging/test_remote_handler.py @@ -21,6 +21,7 @@ from synapse.logging import RemoteHandler from tests.logging import LoggerCleanupMixin from tests.server import FakeTransport, get_clock from tests.unittest import TestCase +from tests.utils import checked_cast def connect_logging_client( @@ -56,8 +57,8 @@ class RemoteHandlerTestCase(LoggerCleanupMixin, TestCase): client, server = connect_logging_client(self.reactor, 0) # Trigger data being sent - assert isinstance(client.transport, FakeTransport) - client.transport.flush() + client_transport = checked_cast(FakeTransport, client.transport) + client_transport.flush() # One log message, with a single trailing newline logs = server.data.decode("utf8").splitlines() @@ -89,8 +90,8 @@ class RemoteHandlerTestCase(LoggerCleanupMixin, TestCase): # Allow the reconnection client, server = connect_logging_client(self.reactor, 0) - assert isinstance(client.transport, FakeTransport) - client.transport.flush() + client_transport = checked_cast(FakeTransport, client.transport) + client_transport.flush() # Only the 7 infos made it through, the debugs were elided logs = server.data.splitlines() @@ -123,8 +124,8 @@ class RemoteHandlerTestCase(LoggerCleanupMixin, TestCase): # Allow the reconnection client, server = connect_logging_client(self.reactor, 0) - assert isinstance(client.transport, FakeTransport) - client.transport.flush() + client_transport = checked_cast(FakeTransport, client.transport) + client_transport.flush() # The 10 warnings made it through, the debugs and infos were elided logs = server.data.splitlines() @@ -148,8 +149,8 @@ class RemoteHandlerTestCase(LoggerCleanupMixin, TestCase): # Allow the reconnection client, server = connect_logging_client(self.reactor, 0) - assert isinstance(client.transport, FakeTransport) - client.transport.flush() + client_transport = checked_cast(FakeTransport, client.transport) + client_transport.flush() # The first five and last five warnings made it through, the debugs and # infos were elided diff --git a/tests/rest/client/test_auth.py b/tests/rest/client/test_auth.py index 208ec44829..f4e1e7de43 100644 --- a/tests/rest/client/test_auth.py +++ b/tests/rest/client/test_auth.py @@ -43,6 +43,9 @@ class DummyRecaptchaChecker(UserInteractiveAuthChecker): super().__init__(hs) self.recaptcha_attempts: List[Tuple[dict, str]] = [] + def is_enabled(self) -> bool: + return True + def check_auth(self, authdict: dict, clientip: str) -> Any: self.recaptcha_attempts.append((authdict, clientip)) return succeed(True) diff --git a/tests/rest/client/test_third_party_rules.py b/tests/rest/client/test_third_party_rules.py index 3325d43a2f..5fa3440691 100644 --- a/tests/rest/client/test_third_party_rules.py +++ b/tests/rest/client/test_third_party_rules.py @@ -425,7 +425,7 @@ class ThirdPartyRulesTestCase(unittest.FederatingHomeserverTestCase): async def test_fn( event: EventBase, state_events: StateMap[EventBase] ) -> Tuple[bool, Optional[JsonDict]]: - if event.is_state and event.type == EventTypes.PowerLevels: + if event.is_state() and event.type == EventTypes.PowerLevels: await api.create_and_send_event_into_room( { "room_id": event.room_id, diff --git a/tests/utils.py b/tests/utils.py index 15fabbc2d0..a0ac11bc5c 100644 --- a/tests/utils.py +++ b/tests/utils.py @@ -15,7 +15,7 @@ import atexit import os -from typing import Any, Callable, Dict, List, Tuple, Union, overload +from typing import Any, Callable, Dict, List, Tuple, Type, TypeVar, Union, overload import attr from typing_extensions import Literal, ParamSpec @@ -341,3 +341,27 @@ async def create_room(hs: HomeServer, room_id: str, creator_id: str) -> None: context = await unpersisted_context.persist(event) await persistence_store.persist_event(event, context) + + +T = TypeVar("T") + + +def checked_cast(type: Type[T], x: object) -> T: + """A version of typing.cast that is checked at runtime. + + We have our own function for this for two reasons: + + 1. typing.cast itself is deliberately a no-op at runtime, see + https://docs.python.org/3/library/typing.html#typing.cast + 2. To help workaround a mypy-zope bug https://github.com/Shoobx/mypy-zope/issues/91 + where mypy would erroneously consider `isinstance(x, type)` to be false in all + circumstances. + + For this to make sense, `T` needs to be something that `isinstance` can check; see + https://docs.python.org/3/library/functions.html?highlight=isinstance#isinstance + https://docs.python.org/3/glossary.html#term-abstract-base-class + https://docs.python.org/3/library/typing.html#typing.runtime_checkable + for more details. + """ + assert isinstance(x, type) + return x |