Add fall back for Windows even loop fetching (#2421)

Co-authored-by: Adam Hopkins <adam@amhopkins.com>

CONTRIBUTING.rst

@@ -140,6 +140,7 @@ To maintain the code consistency, Sanic uses following tools.
 #. `isort <https://github.com/timothycrosley/isort>`_
 #. `black <https://github.com/python/black>`_
 #. `flake8 <https://github.com/PyCQA/flake8>`_
+#. `slotscheck <https://github.com/ariebovenberg/slotscheck>`_
 
 isort
 *****
@@ -167,7 +168,13 @@ flake8
 #. pycodestyle
 #. Ned Batchelder's McCabe script
 
-``isort``\ , ``black`` and ``flake8`` checks are performed during ``tox`` lint checks.
+slotscheck
+**********
+
+``slotscheck`` ensures that there are no problems with ``__slots__``
+(e.g. overlaps, or missing slots in base classes).
+
+``isort``\ , ``black``\ , ``flake8`` and ``slotscheck`` checks are performed during ``tox`` lint checks.
 
 The **easiest** way to make your code conform is to run the following before committing.
 

docs/sanic/changelog.rst

@@ -1,6 +1,7 @@
 📜 Changelog
 ============
 
+.. mdinclude:: ./releases/22/22.3.md
 .. mdinclude:: ./releases/21/21.12.md
 .. mdinclude:: ./releases/21/21.9.md
 .. include:: ../../CHANGELOG.rst

docs/sanic/releases/22/22.3.md

@@ -0,0 +1,52 @@
+## Version 22.3.0
+
+### Features
+- [#2347](https://github.com/sanic-org/sanic/pull/2347) API for multi-application server
+    - 🚨 *BREAKING CHANGE*: The old `sanic.worker.GunicornWorker` has been **removed**. To run Sanic with `gunicorn`, you should use it thru `uvicorn` [as described in their docs](https://www.uvicorn.org/#running-with-gunicorn).
+    - 🧁 *SIDE EFFECT*: Named background tasks are now supported, even in Python 3.7
+- [#2357](https://github.com/sanic-org/sanic/pull/2357) Parse `Authorization` header as `Request.credentials`
+- [#2361](https://github.com/sanic-org/sanic/pull/2361) Add config option to skip `Touchup` step in application startup
+- [#2372](https://github.com/sanic-org/sanic/pull/2372) Updates to CLI help messaging
+- [#2382](https://github.com/sanic-org/sanic/pull/2382) Downgrade warnings to backwater debug messages 
+- [#2396](https://github.com/sanic-org/sanic/pull/2396) Allow for `multidict` v0.6
+- [#2401](https://github.com/sanic-org/sanic/pull/2401) Upgrade CLI catching for alternative application run types
+- [#2402](https://github.com/sanic-org/sanic/pull/2402) Conditionally inject CLI arguments into factory
+- [#2413](https://github.com/sanic-org/sanic/pull/2413) Add new start and stop event listeners to reloader process
+- [#2414](https://github.com/sanic-org/sanic/pull/2414) Remove loop as required listener arg
+- [#2415](https://github.com/sanic-org/sanic/pull/2415) Better exception for bad URL parsing
+- [sanic-routing#47](https://github.com/sanic-org/sanic-routing/pull/47) Add a new extention parameter type: `<file:ext>`, `<file:ext=jpg>`, `<file:ext=jpg|png|gif|svg>`, `<file=int:ext>`, `<file=int:ext=jpg|png|gif|svg>`, `<file=float:ext=tar.gz>`
+    - 👶 *BETA FEATURE*: This feature will not work with `path` type matching, and is being released as a beta feature only.
+- [sanic-routing#57](https://github.com/sanic-org/sanic-routing/pull/57) Change `register_pattern` to accept a `str` or `Pattern`
+- [sanic-routing#58](https://github.com/sanic-org/sanic-routing/pull/58) Default matching on non-empty strings only, and new `strorempty` pattern type
+    - 🚨 *BREAKING CHANGE*: Previously a route with a dynamic string parameter (`/<foo>` or `/<foo:str>`) would match on any string, including empty strings. It will now **only** match a non-empty string. To retain the old behavior, you should use the new parameter type: `/<foo:strorempty>`.
+
+### Bugfixes
+- [#2373](https://github.com/sanic-org/sanic/pull/2373) Remove `error_logger` on websockets
+- [#2381](https://github.com/sanic-org/sanic/pull/2381) Fix newly assigned `None` in task registry
+- [sanic-routing#52](https://github.com/sanic-org/sanic-routing/pull/52) Add type casting to regex route matching
+- [sanic-routing#60](https://github.com/sanic-org/sanic-routing/pull/60) Add requirements check on regex routes (this resolves, for example, multiple static directories with differing `host` values)
+
+### Deprecations and Removals
+- [#2362](https://github.com/sanic-org/sanic/pull/2362) 22.3 Deprecations and changes
+    1. `debug=True` and `--debug` do _NOT_ automatically run `auto_reload`
+    2. Default error render is with plain text (browsers still get HTML by default because `auto` looks at headers)
+    3. `config` is required for `ErrorHandler.finalize`
+    4. `ErrorHandler.lookup` requires two positional args
+    5. Unused websocket protocol args removed
+- [#2344](https://github.com/sanic-org/sanic/pull/2344) Deprecate loading of lowercase environment variables
+
+### Developer infrastructure
+- [#2363](https://github.com/sanic-org/sanic/pull/2363) Revert code coverage back to Codecov
+- [#2405](https://github.com/sanic-org/sanic/pull/2405) Upgrade tests for `sanic-routing` changes
+- [sanic-testing#35](https://github.com/sanic-org/sanic-testing/pull/35) Allow for httpx v0.22
+
+### Improved Documentation
+- [#2350](https://github.com/sanic-org/sanic/pull/2350) Fix link in README for ASGI
+- [#2398](https://github.com/sanic-org/sanic/pull/2398) Document middleware on_request and on_response
+- [#2409](https://github.com/sanic-org/sanic/pull/2409) Add missing documentation for `Request.respond`
+
+### Miscellaneous
+- [#2376](https://github.com/sanic-org/sanic/pull/2376) Fix typing for `ListenerMixin.listener`
+- [#2383](https://github.com/sanic-org/sanic/pull/2383) Clear deprecation warning in `asyncio.wait`
+- [#2387](https://github.com/sanic-org/sanic/pull/2387) Cleanup `__slots__` implementations
+- [#2390](https://github.com/sanic-org/sanic/pull/2390) Clear deprecation warning in `asyncio.get_event_loop`

examples/delayed_response.py

@@ -4,6 +4,7 @@ from sanic import Sanic, response
 
 
 app = Sanic("DelayedResponseApp", strict_slashes=True)
+app.config.AUTO_EXTEND = False
 
 
 @app.get("/")
@@ -11,7 +12,7 @@ async def handler(request):
     return response.redirect("/sleep/3")
 
 
-@app.get("/sleep/<t:number>")
+@app.get("/sleep/<t:float>")
 async def handler2(request, t=0.3):
     await sleep(t)
     return response.text(f"Slept {t:.1f} seconds.\n")

examples/request_stream/client.py

@@ -6,5 +6,5 @@ data = ""
 for i in range(1, 250000):
     data += str(i)
 
-r = requests.post("http://0.0.0.0:8000/stream", data=data)
+r = requests.post('http://0.0.0.0:8000/stream', data=data)
 print(r.text)

sanic/__version__.py

@@ -1 +1 @@
-__version__ = "22.3.0.dev1"
+__version__ = "22.3.1"

sanic/app.py

@@ -11,7 +11,6 @@ from asyncio import (
     CancelledError,
     Task,
     ensure_future,
-    get_event_loop,
     get_running_loop,
     wait_for,
 )
@@ -142,7 +141,6 @@ class Sanic(BaseSanic, RunnerMixin, metaclass=TouchUpMeta):
         "error_handler",
         "go_fast",
         "listeners",
-        "name",
         "named_request_middleware",
         "named_response_middleware",
         "request_class",
@@ -254,7 +252,13 @@ class Sanic(BaseSanic, RunnerMixin, metaclass=TouchUpMeta):
                 "Loop can only be retrieved after the app has started "
                 "running. Not supported with `create_server` function"
             )
-        return get_event_loop()
+        try:
+            return get_running_loop()
+        except RuntimeError:
+            if sys.version_info > (3, 10):
+                return asyncio.get_event_loop_policy().get_event_loop()
+            else:
+                return asyncio.get_event_loop()
 
     # -------------------------------------------------------------------- #
     # Registration
@@ -1132,7 +1136,10 @@ class Sanic(BaseSanic, RunnerMixin, metaclass=TouchUpMeta):
     async def _listener(
         app: Sanic, loop: AbstractEventLoop, listener: ListenerType
     ):
-        maybe_coro = listener(app, loop)
+        try:
+            maybe_coro = listener(app)  # type: ignore
+        except TypeError:
+            maybe_coro = listener(app, loop)  # type: ignore
         if maybe_coro and isawaitable(maybe_coro):
             await maybe_coro
 
@@ -1268,10 +1275,9 @@ class Sanic(BaseSanic, RunnerMixin, metaclass=TouchUpMeta):
                 ...
 
     def purge_tasks(self):
-        for task in self.tasks:
+        for key, task in self._task_registry.items():
             if task.done() or task.cancelled():
-                name = task.get_name()
+                self._task_registry[key] = None
-                self._task_registry[name] = None
 
         self._task_registry = {
             k: v for k, v in self._task_registry.items() if v is not None
@@ -1510,7 +1516,8 @@ class Sanic(BaseSanic, RunnerMixin, metaclass=TouchUpMeta):
             if not Sanic.test_mode:
                 raise e
 
-    def signalize(self):
+    def signalize(self, allow_fail_builtin=True):
+        self.signal_router.allow_fail_builtin = allow_fail_builtin
         try:
             self.signal_router.finalize()
         except FinalizationError as e:
@@ -1525,8 +1532,11 @@ class Sanic(BaseSanic, RunnerMixin, metaclass=TouchUpMeta):
         if hasattr(self, "_ext"):
             self.ext._display()
 
+        if self.state.is_debug:
+            self.config.TOUCHUP = False
+
         # Setup routers
-        self.signalize()
+        self.signalize(self.config.TOUCHUP)
         self.finalize()
 
         # TODO: Replace in v22.6 to check against apps in app registry
@@ -1546,6 +1556,7 @@ class Sanic(BaseSanic, RunnerMixin, metaclass=TouchUpMeta):
             # TODO:
             # - Raise warning if secondary apps have error handler config
             ErrorHandler.finalize(self.error_handler, config=self.config)
+            if self.config.TOUCHUP:
                 TouchUp.run(self)
 
         self.state.is_started = True

sanic/cli/app.py

@@ -68,6 +68,13 @@ Or, a path to a directory to run as a simple HTTP server:
         legacy_version = len(sys.argv) == 2 and sys.argv[-1] == "-v"
         parse_args = ["--version"] if legacy_version else None
 
+        if not parse_args:
+            parsed, unknown = self.parser.parse_known_args()
+            if unknown and parsed.factory:
+                for arg in unknown:
+                    if arg.startswith("--"):
+                        self.parser.add_argument(arg.split("=")[0])
+
         self.args = self.parser.parse_args(args=parse_args)
         self._precheck()
 
@@ -113,6 +120,14 @@ Or, a path to a directory to run as a simple HTTP server:
                 delimiter = ":" if ":" in self.args.module else "."
                 module_name, app_name = self.args.module.rsplit(delimiter, 1)
 
+                if module_name == "" and os.path.isdir(self.args.module):
+                    raise ValueError(
+                        "App not found.\n"
+                        "   Please use --simple if you are passing a "
+                        "directory to sanic.\n"
+                        f"   eg. sanic {self.args.module} --simple"
+                    )
+
                 if app_name.endswith("()"):
                     self.args.factory = True
                     app_name = app_name[:-2]
@@ -120,14 +135,26 @@ Or, a path to a directory to run as a simple HTTP server:
                 module = import_module(module_name)
                 app = getattr(module, app_name, None)
                 if self.args.factory:
+                    try:
+                        app = app(self.args)
+                    except TypeError:
                         app = app()
 
                 app_type_name = type(app).__name__
 
                 if not isinstance(app, Sanic):
+                    if callable(app):
+                        solution = f"sanic {self.args.module} --factory"
+                        raise ValueError(
+                            "Module is not a Sanic app, it is a"
+                            f"{app_type_name}\n"
+                            "  If this callable returns a"
+                            f"Sanic instance try: \n{solution}"
+                        )
+
                     raise ValueError(
                         f"Module is not a Sanic app, it is a {app_type_name}\n"
-                        f"  Perhaps you meant {self.args.module}.app?"
+                        f"  Perhaps you meant {self.args.module}:app?"
                     )
         except ImportError as e:
             if module_name.startswith(e.name):

sanic/compat.py

@@ -72,7 +72,7 @@ def ctrlc_workaround_for_windows(app):
         """Asyncio wakeups to allow receiving SIGINT in Python"""
         while not die:
             # If someone else stopped the app, just exit
-            if app.is_stopping:
+            if app.state.is_stopping:
                 return
             # Windows Python blocks signal handlers while the event loop is
             # waiting for I/O. Frequent wakeups keep interrupts flowing.

sanic/config.py

@@ -38,6 +38,7 @@ DEFAULT_CONFIG = {
     "REQUEST_MAX_SIZE": 100000000,  # 100 megabytes
     "REQUEST_TIMEOUT": 60,  # 60 seconds
     "RESPONSE_TIMEOUT": 60,  # 60 seconds
+    "TOUCHUP": True,
     "USE_UVLOOP": _default,
     "WEBSOCKET_MAX_SIZE": 2**20,  # 1 megabyte
     "WEBSOCKET_PING_INTERVAL": 20,
@@ -81,6 +82,7 @@ class Config(dict, metaclass=DescriptorMeta):
     REQUEST_TIMEOUT: int
     RESPONSE_TIMEOUT: int
     SERVER_NAME: str
+    TOUCHUP: bool
     USE_UVLOOP: Union[Default, bool]
     WEBSOCKET_MAX_SIZE: int
     WEBSOCKET_PING_INTERVAL: int

sanic/exceptions.py

@@ -51,6 +51,10 @@ class InvalidUsage(SanicException):
     quiet = True
 
 
+class BadURL(InvalidUsage):
+    ...
+
+
 class MethodNotSupported(SanicException):
     """
     **Status**: 405 Method Not Allowed

sanic/mixins/listeners.py

@@ -1,8 +1,9 @@
 from enum import Enum, auto
 from functools import partial
-from typing import List, Optional, Union
+from typing import Callable, List, Optional, Union, overload
 
 from sanic.base.meta import SanicMeta
+from sanic.exceptions import InvalidUsage
 from sanic.models.futures import FutureListener
 from sanic.models.handler_types import ListenerType, Sanic
 
@@ -17,6 +18,8 @@ class ListenerEvent(str, Enum):
     AFTER_SERVER_STOP = "server.shutdown.after"
     MAIN_PROCESS_START = auto()
     MAIN_PROCESS_STOP = auto()
+    RELOAD_PROCESS_START = auto()
+    RELOAD_PROCESS_STOP = auto()
 
 
 class ListenerMixin(metaclass=SanicMeta):
@@ -26,12 +29,33 @@ class ListenerMixin(metaclass=SanicMeta):
     def _apply_listener(self, listener: FutureListener):
         raise NotImplementedError  # noqa
 
+    @overload
+    def listener(
+        self,
+        listener_or_event: ListenerType[Sanic],
+        event_or_none: str,
+        apply: bool = ...,
+    ) -> ListenerType[Sanic]:
+        ...
+
+    @overload
+    def listener(
+        self,
+        listener_or_event: str,
+        event_or_none: None = ...,
+        apply: bool = ...,
+    ) -> Callable[[ListenerType[Sanic]], ListenerType[Sanic]]:
+        ...
+
     def listener(
         self,
         listener_or_event: Union[ListenerType[Sanic], str],
         event_or_none: Optional[str] = None,
         apply: bool = True,
-    ) -> ListenerType[Sanic]:
+    ) -> Union[
+        ListenerType[Sanic],
+        Callable[[ListenerType[Sanic]], ListenerType[Sanic]],
+    ]:
         """
         Create a listener from a decorated function.
 
@@ -49,7 +73,9 @@ class ListenerMixin(metaclass=SanicMeta):
         :param event: event to listen to
         """
 
-        def register_listener(listener, event):
+        def register_listener(
+            listener: ListenerType[Sanic], event: str
+        ) -> ListenerType[Sanic]:
             nonlocal apply
 
             future_listener = FutureListener(listener, event)
@@ -59,6 +85,10 @@ class ListenerMixin(metaclass=SanicMeta):
             return listener
 
         if callable(listener_or_event):
+            if event_or_none is None:
+                raise InvalidUsage(
+                    "Invalid event registration: Missing event name."
+                )
             return register_listener(listener_or_event, event_or_none)
         else:
             return partial(register_listener, event=listener_or_event)
@@ -73,6 +103,16 @@ class ListenerMixin(metaclass=SanicMeta):
     ) -> ListenerType[Sanic]:
         return self.listener(listener, "main_process_stop")
 
+    def reload_process_start(
+        self, listener: ListenerType[Sanic]
+    ) -> ListenerType[Sanic]:
+        return self.listener(listener, "reload_process_start")
+
+    def reload_process_stop(
+        self, listener: ListenerType[Sanic]
+    ) -> ListenerType[Sanic]:
+        return self.listener(listener, "reload_process_stop")
+
     def before_server_start(
         self, listener: ListenerType[Sanic]
     ) -> ListenerType[Sanic]:

sanic/mixins/middleware.py

@@ -16,9 +16,9 @@ class MiddlewareMixin(metaclass=SanicMeta):
         self, middleware_or_request, attach_to="request", apply=True
     ):
         """
-        Decorate and register middleware to be called before a request.
+        Decorate and register middleware to be called before a request
-        Can either be called as *@app.middleware* or
+        is handled or after a response is created. Can either be called as
-        *@app.middleware('request')*
+        *@app.middleware* or *@app.middleware('request')*.
 
         `See user guide re: middleware
         <https://sanicframework.org/guide/basics/middleware.html>`__
@@ -47,12 +47,25 @@ class MiddlewareMixin(metaclass=SanicMeta):
             )
 
     def on_request(self, middleware=None):
+        """Register a middleware to be called before a request is handled.
+
+        This is the same as *@app.middleware('request')*.
+
+        :param: middleware: A callable that takes in request.
+        """
         if callable(middleware):
             return self.middleware(middleware, "request")
         else:
             return partial(self.middleware, attach_to="request")
 
     def on_response(self, middleware=None):
+        """Register a middleware to be called after a response is created.
+
+        This is the same as *@app.middleware('response')*.
+
+        :param: middleware:
+            A callable that takes in a request and its response.
+        """
         if callable(middleware):
             return self.middleware(middleware, "response")
         else:

sanic/mixins/runner.py

@@ -11,6 +11,7 @@ from asyncio import (
     all_tasks,
     get_event_loop,
     get_running_loop,
+    new_event_loop,
 )
 from contextlib import suppress
 from functools import partial
@@ -32,6 +33,7 @@ from sanic.models.handler_types import ListenerType
 from sanic.server import Signal as ServerSignal
 from sanic.server import try_use_uvloop
 from sanic.server.async_server import AsyncioServer
+from sanic.server.events import trigger_events
 from sanic.server.protocols.http_protocol import HttpProtocol
 from sanic.server.protocols.websocket_protocol import WebSocketProtocol
 from sanic.server.runners import serve, serve_multiple, serve_single
@@ -538,15 +540,21 @@ class RunnerMixin(metaclass=SanicMeta):
             except IndexError:
                 raise RuntimeError("Did not find any applications.")
 
+        reloader_start = primary.listeners.get("reload_process_start")
+        reloader_stop = primary.listeners.get("reload_process_stop")
         # We want to run auto_reload if ANY of the applications have it enabled
         if (
             cls.should_auto_reload()
             and os.environ.get("SANIC_SERVER_RUNNING") != "true"
-        ):
+        ):  # no cov
+            loop = new_event_loop()
+            trigger_events(reloader_start, loop, primary)
             reload_dirs: Set[Path] = primary.state.reload_dirs.union(
                 *(app.state.reload_dirs for app in apps)
             )
-            return reloader_helpers.watchdog(1.0, reload_dirs)
+            reloader_helpers.watchdog(1.0, reload_dirs)
+            trigger_events(reloader_stop, loop, primary)
+            return
 
         # This exists primarily for unit testing
         if not primary.state.server_info:  # no cov

sanic/models/handler_types.py

@@ -1,11 +1,13 @@
 from asyncio.events import AbstractEventLoop
 from typing import Any, Callable, Coroutine, Optional, TypeVar, Union
 
+import sanic
+
 from sanic.request import Request
 from sanic.response import BaseHTTPResponse, HTTPResponse
 
 
-Sanic = TypeVar("Sanic")
+Sanic = TypeVar("Sanic", bound="sanic.Sanic")
 
 MiddlewareResponse = Union[
     Optional[HTTPResponse], Coroutine[Any, Any, Optional[HTTPResponse]]
@@ -18,8 +20,9 @@ ErrorMiddlewareType = Callable[
     [Request, BaseException], Optional[Coroutine[Any, Any, None]]
 ]
 MiddlewareType = Union[RequestMiddlewareType, ResponseMiddlewareType]
-ListenerType = Callable[
+ListenerType = Union[
-    [Sanic, AbstractEventLoop], Optional[Coroutine[Any, Any, None]]
+    Callable[[Sanic], Optional[Coroutine[Any, Any, None]]],
+    Callable[[Sanic, AbstractEventLoop], Optional[Coroutine[Any, Any, None]]],
 ]
 RouteHandler = Callable[..., Coroutine[Any, Any, Optional[HTTPResponse]]]
 SignalHandler = Callable[..., Coroutine[Any, Any, None]]

sanic/request.py

@@ -30,10 +30,11 @@ from types import SimpleNamespace
 from urllib.parse import parse_qs, parse_qsl, unquote, urlunparse
 
 from httptools import parse_url  # type: ignore
+from httptools.parser.errors import HttpParserInvalidURLError  # type: ignore
 
 from sanic.compat import CancelledErrors, Header
 from sanic.constants import DEFAULT_HTTP_CONTENT_TYPE
-from sanic.exceptions import InvalidUsage, ServerError
+from sanic.exceptions import BadURL, InvalidUsage, ServerError
 from sanic.headers import (
     AcceptContainer,
     Options,
@@ -129,8 +130,10 @@ class Request:
     ):
 
         self.raw_url = url_bytes
-        # TODO: Content-Encoding detection
+        try:
             self._parsed_url = parse_url(url_bytes)
+        except HttpParserInvalidURLError:
+            raise BadURL(f"Bad URL: {url_bytes.decode()}")
         self._id: Optional[Union[uuid.UUID, str, int]] = None
         self._name: Optional[str] = None
         self.app = app
@@ -197,6 +200,53 @@ class Request:
         headers: Optional[Union[Header, Dict[str, str]]] = None,
         content_type: Optional[str] = None,
     ):
+        """Respond to the request without returning.
+
+        This method can only be called once, as you can only respond once.
+        If no ``response`` argument is passed, one will be created from the
+        ``status``, ``headers`` and ``content_type`` arguments.
+
+        **The first typical usecase** is if you wish to respond to the
+        request without returning from the handler:
+
+        .. code-block:: python
+
+            @app.get("/")
+            async def handler(request: Request):
+                data = ...  # Process something
+
+                json_response = json({"data": data})
+                await request.respond(json_response)
+
+                # You are now free to continue executing other code
+                ...
+
+            @app.on_response
+            async def add_header(_, response: HTTPResponse):
+                # Middlewares still get executed as expected
+                response.headers["one"] = "two"
+
+        **The second possible usecase** is for when you want to directly
+        respond to the request:
+
+        .. code-block:: python
+
+            response = await request.respond(content_type="text/csv")
+            await response.send("foo,")
+            await response.send("bar")
+
+            # You can control the completion of the response by calling
+            # the 'eof()' method:
+            await response.eof()
+
+        :param response: response instance to send
+        :param status: status code to return in the response
+        :param headers: headers to return in the response
+        :param content_type: Content-Type header of the response
+        :return: final response being sent (may be different from the
+            ``response`` parameter because of middlewares) which can be
+            used to manually send data
+        """
         try:
             if self.stream is not None and self.stream.response:
                 raise ServerError("Second respond call is not allowed.")

sanic/response.py

@@ -50,6 +50,16 @@ class BaseHTTPResponse:
     The base class for all HTTP Responses
     """
 
+    __slots__ = (
+        "asgi",
+        "body",
+        "content_type",
+        "stream",
+        "status",
+        "headers",
+        "_cookies",
+    )
+
     _dumps = json_dumps
 
     def __init__(self):
@@ -156,7 +166,7 @@ class HTTPResponse(BaseHTTPResponse):
     :type content_type: Optional[str]
     """
 
-    __slots__ = ("body", "status", "content_type", "headers", "_cookies")
+    __slots__ = ()
 
     def __init__(
         self,

sanic/server/events.py

@@ -1,8 +1,18 @@
+from __future__ import annotations
+
 from inspect import isawaitable
-from typing import Any, Callable, Iterable, Optional
+from typing import TYPE_CHECKING, Any, Callable, Iterable, Optional
 
 
-def trigger_events(events: Optional[Iterable[Callable[..., Any]]], loop):
+if TYPE_CHECKING:  # no cov
+    from sanic import Sanic
+
+
+def trigger_events(
+    events: Optional[Iterable[Callable[..., Any]]],
+    loop,
+    app: Optional[Sanic] = None,
+):
     """
     Trigger event callbacks (functions or async)
 
@@ -11,6 +21,9 @@ def trigger_events(events: Optional[Iterable[Callable[..., Any]]], loop):
     """
     if events:
         for event in events:
-            result = event(loop)
+            try:
+                result = event() if not app else event(app)
+            except TypeError:
+                result = event(loop) if not app else event(app, loop)
             if isawaitable(result):
                 loop.run_until_complete(result)

sanic/server/loop.py

@@ -1,26 +1,12 @@
 import asyncio
 
+from distutils.util import strtobool
 from os import getenv
 
 from sanic.compat import OS_IS_WINDOWS
 from sanic.log import error_logger
 
 
-def strtobool(query: str) -> bool:
-    """
-    reimplement strtobool per PEP 632 and python 3.12 deprecation
-
-    True values are y, yes, t, true, on and 1; false values are n, no, f,
-    false, off and 0. Raises ValueError if val is anything else.
-    """
-    if query.lower() in ["y", "yes", "t", "true", "on", "1"]:
-        return True
-    elif query.lower() in ["n", "no", "f", "false", "off", "0"]:
-        return False
-    else:
-        raise ValueError(f"String value {query} cannot be converted to bool")
-
-
 def try_use_uvloop() -> None:
     """
     Use uvloop instead of the default asyncio loop.

sanic/server/protocols/websocket_protocol.py

@@ -5,7 +5,7 @@ from websockets.server import ServerConnection
 from websockets.typing import Subprotocol
 
 from sanic.exceptions import ServerError
-from sanic.log import error_logger
+from sanic.log import logger
 from sanic.server import HttpProtocol
 
 from ..websockets.impl import WebsocketImplProtocol
@@ -104,7 +104,7 @@ class WebSocketProtocol(HttpProtocol):
                 max_size=self.websocket_max_size,
                 subprotocols=subprotocols,
                 state=OPEN,
-                logger=error_logger,
+                logger=logger,
             )
             resp: "http11.Response" = ws_conn.accept(request)
         except Exception:

sanic/signals.py

@@ -80,6 +80,7 @@ class SignalRouter(BaseRouter):
             group_class=SignalGroup,
             stacking=True,
         )
+        self.allow_fail_builtin = True
         self.ctx.loop = None
 
     def get(  # type: ignore
@@ -129,7 +130,8 @@ class SignalRouter(BaseRouter):
         try:
             group, handlers, params = self.get(event, condition=condition)
         except NotFound as e:
-            if fail_not_found:
+            is_reserved = event.split(".", 1)[0] in RESERVED_NAMESPACES
+            if fail_not_found and (not is_reserved or self.allow_fail_builtin):
                 raise e
             else:
                 if self.ctx.app.debug and self.ctx.app.state.verbosity >= 1:

sanic/utils.py

@@ -11,18 +11,35 @@ from sanic.helpers import import_string
 
 
 def str_to_bool(val: str) -> bool:
-    """
+    """Takes string and tries to turn it into bool as human would do.
-    reimplement strtobool per PEP 632 and python 3.12 deprecation
 
-    True values are y, yes, t, true, on and 1; false values are n, no, f,
+    If val is in case insensitive (
-    false, off and 0. Raises ValueError if val is anything else.
+        "y", "yes", "yep", "yup", "t",
-    """
+        "true", "on", "enable", "enabled", "1"
-    if val.lower() in ["y", "yes", "t", "true", "on", "1"]:
+    ) returns True.
+    If val is in case insensitive (
+        "n", "no", "f", "false", "off", "disable", "disabled", "0"
+    ) returns False.
+    Else Raise ValueError."""
+
+    val = val.lower()
+    if val in {
+        "y",
+        "yes",
+        "yep",
+        "yup",
+        "t",
+        "true",
+        "on",
+        "enable",
+        "enabled",
+        "1",
+    }:
         return True
-    elif val.lower() in ["n", "no", "f", "false", "off", "0"]:
+    elif val in {"n", "no", "f", "false", "off", "disable", "disabled", "0"}:
         return False
     else:
-        raise ValueError(f"String value {val} cannot be converted to bool")
+        raise ValueError(f"Invalid truth value {val}")
 
 
 def load_module_from_file_location(

setup.py

@@ -6,6 +6,8 @@ import os
 import re
 import sys
 
+from distutils.util import strtobool
+
 from setuptools import find_packages, setup
 from setuptools.command.test import test as TestCommand
 
@@ -59,7 +61,7 @@ setup_kwargs = {
         "Build fast. Run fast."
     ),
     "long_description": long_description,
-    "packages": find_packages(include=[]),
+    "packages": find_packages(),
     "package_data": {"sanic": ["py.typed"]},
     "platforms": "any",
     "python_requires": ">=3.7",
@@ -82,17 +84,17 @@ ujson = "ujson>=1.35" + env_dependency
 uvloop = "uvloop>=0.5.3" + env_dependency
 types_ujson = "types-ujson" + env_dependency
 requirements = [
-    "sanic-routing~=0.7",
+    "sanic-routing>=22.3.0,<22.6.0",
     "httptools>=0.0.10",
     uvloop,
     ujson,
     "aiofiles>=0.6.0",
     "websockets>=10.0",
-    "multidict>=5.0,<6.0",
+    "multidict>=5.0,<7.0",
 ]
 
 tests_require = [
-    "sanic-testing>=0.7.0",
+    "sanic-testing>=22.3.0",
     "pytest==6.2.5",
     "coverage==5.3",
     "gunicorn==20.0.4",
@@ -110,6 +112,7 @@ tests_require = [
     "docutils",
     "pygments",
     "uvicorn<0.15.0",
+    "slotscheck>=0.8.0,<1",
     types_ujson,
 ]
 
@@ -130,23 +133,6 @@ dev_require = tests_require + [
 
 all_require = list(set(dev_require + docs_require))
 
-# trying to self-refernce this from within sanic prior to install is
-# problematic
-def strtobool(val: str) -> bool:
-    """
-    reimplement strtobool per PEP 632 and python 3.12 deprecation
-
-    True values are y, yes, t, true, on and 1; false values are n, no, f,
-    false, off and 0. Raises ValueError if val is anything else.
-    """
-    if val.lower() in ["y", "yes", "t", "true", "on", "1"]:
-        return True
-    elif val.lower() in ["n", "no", "f", "false", "off", "0"]:
-        return False
-    else:
-        raise ValueError(f"String value {val} cannot be converted to bool")
-
-
 if strtobool(os.environ.get("SANIC_NO_UJSON", "no")):
     print("Installing without uJSON")
     requirements.remove(ujson)

tests/fake/server.py

@@ -34,3 +34,12 @@ async def shutdown(app: Sanic, _):
 
 def create_app():
     return app
+
+
+def create_app_with_args(args):
+    try:
+        print(f"foo={args.foo}")
+    except AttributeError:
+        print(f"module={args.module}")
+
+    return app

tests/test_cli.py

@@ -39,16 +39,17 @@ def read_app_info(lines):
 
 
 @pytest.mark.parametrize(
-    "appname",
+    "appname,extra",
     (
-        "fake.server.app",
+        ("fake.server.app", None),
-        "fake.server:app",
+        ("fake.server:create_app", "--factory"),
-        "fake.server:create_app()",
+        ("fake.server.create_app()", None),
-        "fake.server.create_app()",
     ),
 )
-def test_server_run(appname):
+def test_server_run(appname, extra):
     command = ["sanic", appname]
+    if extra:
+        command.append(extra)
     out, err, exitcode = capture(command)
     lines = out.split(b"\n")
     firstline = lines[starting_line(lines) + 1]
@@ -57,6 +58,49 @@ def test_server_run(appname):
     assert firstline == b"Goin' Fast @ http://127.0.0.1:8000"
 
 
+def test_server_run_factory_with_args():
+    command = [
+        "sanic",
+        "fake.server.create_app_with_args",
+        "--factory",
+    ]
+    out, err, exitcode = capture(command)
+    lines = out.split(b"\n")
+
+    assert exitcode != 1, lines
+    assert b"module=fake.server.create_app_with_args" in lines
+
+
+def test_server_run_factory_with_args_arbitrary():
+    command = [
+        "sanic",
+        "fake.server.create_app_with_args",
+        "--factory",
+        "--foo=bar",
+    ]
+    out, err, exitcode = capture(command)
+    lines = out.split(b"\n")
+
+    assert exitcode != 1, lines
+    assert b"foo=bar" in lines
+
+
+def test_error_with_function_as_instance_without_factory_arg():
+    command = ["sanic", "fake.server.create_app"]
+    out, err, exitcode = capture(command)
+    assert b"try: \nsanic fake.server.create_app --factory" in err
+    assert exitcode != 1
+
+
+def test_error_with_path_as_instance_without_simple_arg():
+    command = ["sanic", "./fake/"]
+    out, err, exitcode = capture(command)
+    assert (
+        b"Please use --simple if you are passing a directory to sanic." in err
+    )
+    assert exitcode != 1
+
+
 @pytest.mark.parametrize(
     "cmd",
     (

tests/test_headers.py

@@ -164,11 +164,12 @@ def test_raw_headers(app):
         },
     )
 
-    assert request.raw_headers == (
+    assert b"Host: example.com" in request.raw_headers
-        b"Host: example.com\r\nAccept: */*\r\nAccept-Encoding: gzip, "
+    assert b"Accept: */*" in request.raw_headers
-        b"deflate\r\nConnection: keep-alive\r\nUser-Agent: "
+    assert b"Accept-Encoding: gzip, deflate" in request.raw_headers
-        b"Sanic-Testing\r\nFOO: bar"
+    assert b"Connection: keep-alive" in request.raw_headers
-    )
+    assert b"User-Agent: Sanic-Testing" in request.raw_headers
+    assert b"FOO: bar" in request.raw_headers
 
 
 def test_request_line(app):

tests/test_reloader.py

@@ -58,6 +58,36 @@ def write_app(filename, **runargs):
     return text
 
 
+def write_listener_app(filename, **runargs):
+    start_text = secrets.token_urlsafe()
+    stop_text = secrets.token_urlsafe()
+    with open(filename, "w") as f:
+        f.write(
+            dedent(
+                f"""\
+            import os
+            from sanic import Sanic
+
+            app = Sanic(__name__)
+
+            app.route("/")(lambda x: x)
+
+            @app.reload_process_start
+            async def reload_start(*_):
+                print("reload_start", os.getpid(), {start_text!r})
+
+            @app.reload_process_stop
+            async def reload_stop(*_):
+                print("reload_stop", os.getpid(), {stop_text!r})
+
+            if __name__ == "__main__":
+                app.run(**{runargs!r})
+            """
+            )
+        )
+    return start_text, stop_text
+
+
 def write_json_config_app(filename, jsonfile, **runargs):
     with open(filename, "w") as f:
         f.write(
@@ -92,10 +122,10 @@ def write_file(filename):
     return text
 
 
-def scanner(proc):
+def scanner(proc, trigger="complete"):
     for line in proc.stdout:
         line = line.decode().strip()
-        if line.startswith("complete"):
+        if line.startswith(trigger):
             yield line
 
 
@@ -108,7 +138,7 @@ argv = dict(
         "sanic",
         "--port",
         "42204",
-        "--debug",
+        "--auto-reload",
         "reloader.app",
     ],
 )
@@ -118,7 +148,7 @@ argv = dict(
     "runargs, mode",
     [
         (dict(port=42202, auto_reload=True), "script"),
-        (dict(port=42203, debug=True), "module"),
+        (dict(port=42203, auto_reload=True), "module"),
         ({}, "sanic"),
     ],
 )
@@ -151,7 +181,7 @@ async def test_reloader_live(runargs, mode):
     "runargs, mode",
     [
         (dict(port=42302, auto_reload=True), "script"),
-        (dict(port=42303, debug=True), "module"),
+        (dict(port=42303, auto_reload=True), "module"),
         ({}, "sanic"),
     ],
 )
@@ -183,3 +213,30 @@ async def test_reloader_live_with_dir(runargs, mode):
             terminate(proc)
             with suppress(TimeoutExpired):
                 proc.wait(timeout=3)
+
+
+def test_reload_listeners():
+    with TemporaryDirectory() as tmpdir:
+        filename = os.path.join(tmpdir, "reloader.py")
+        start_text, stop_text = write_listener_app(
+            filename, port=42305, auto_reload=True
+        )
+
+        proc = Popen(
+            argv["script"], cwd=tmpdir, stdout=PIPE, creationflags=flags
+        )
+        try:
+            timeout = Timer(TIMER_DELAY, terminate, [proc])
+            timeout.start()
+            # Python apparently keeps using the old source sometimes if
+            # we don't sleep before rewrite (pycache timestamp problem?)
+            sleep(1)
+            line = scanner(proc, "reload_start")
+            assert start_text in next(line)
+            line = scanner(proc, "reload_stop")
+            assert stop_text in next(line)
+        finally:
+            timeout.cancel()
+            terminate(proc)
+            with suppress(TimeoutExpired):
+                proc.wait(timeout=3)

tests/test_request.py

@@ -4,6 +4,7 @@ from uuid import UUID, uuid4
 import pytest
 
 from sanic import Sanic, response
+from sanic.exceptions import BadURL
 from sanic.request import Request, uuid
 from sanic.server import HttpProtocol
 
@@ -176,3 +177,17 @@ def test_request_accept():
         "text/x-dvi; q=0.8",
         "text/plain; q=0.5",
     ]
+
+
+def test_bad_url_parse():
+    message = "Bad URL: my.redacted-domain.com:443"
+    with pytest.raises(BadURL, match=message):
+        Request(
+            b"my.redacted-domain.com:443",
+            Mock(),
+            Mock(),
+            Mock(),
+            Mock(),
+            Mock(),
+            Mock(),
+        )

tests/test_routes.py

@@ -1,8 +1,6 @@
 import asyncio
 import re
 
-from unittest.mock import Mock
-
 import pytest
 
 from sanic_routing.exceptions import (
@@ -256,7 +254,7 @@ def test_route_strict_slash(app):
 
 
 def test_route_invalid_parameter_syntax(app):
-    with pytest.raises(ValueError):
+    with pytest.raises(InvalidUsage):
 
         @app.get("/get/<:str>", strict_slashes=True)
         def handler(request):

tests/test_server_events.py

@@ -33,6 +33,14 @@ def create_listener(listener_name, in_list):
     return _listener
 
 
+def create_listener_no_loop(listener_name, in_list):
+    async def _listener(app):
+        print(f"DEBUG MESSAGE FOR PYTEST for {listener_name}")
+        in_list.insert(0, app.name + listener_name)
+
+    return _listener
+
+
 def start_stop_app(random_name_app, **run_kwargs):
     def stop_on_alarm(signum, frame):
         random_name_app.stop()
@@ -56,6 +64,17 @@ def test_single_listener(app, listener_name):
     assert app.name + listener_name == output.pop()
 
 
+@skipif_no_alarm
+@pytest.mark.parametrize("listener_name", AVAILABLE_LISTENERS)
+def test_single_listener_no_loop(app, listener_name):
+    """Test that listeners on their own work"""
+    output = []
+    # Register listener
+    app.listener(listener_name)(create_listener_no_loop(listener_name, output))
+    start_stop_app(app)
+    assert app.name + listener_name == output.pop()
+
+
 @skipif_no_alarm
 @pytest.mark.parametrize("listener_name", AVAILABLE_LISTENERS)
 def test_register_listener(app, listener_name):
@@ -199,3 +218,16 @@ async def test_missing_startup_raises_exception(app):
 
     with pytest.raises(SanicException):
         await srv.before_start()
+
+
+def test_reload_listeners_attached(app):
+    async def dummy(*_):
+        ...
+
+    app.reload_process_start(dummy)
+    app.reload_process_stop(dummy)
+    app.listener("reload_process_start")(dummy)
+    app.listener("reload_process_stop")(dummy)
+
+    assert len(app.listeners.get("reload_process_start")) == 2
+    assert len(app.listeners.get("reload_process_stop")) == 2

tests/test_signal_handlers.py

@@ -3,6 +3,7 @@ import os
 import signal
 
 from queue import Queue
+from types import SimpleNamespace
 from unittest.mock import MagicMock
 
 import pytest
@@ -10,6 +11,7 @@ import pytest
 from sanic_testing.testing import HOST, PORT
 
 from sanic.compat import ctrlc_workaround_for_windows
+from sanic.exceptions import InvalidUsage
 from sanic.response import HTTPResponse
 
 
@@ -73,11 +75,12 @@ def test_windows_workaround():
     # Windows...
     class MockApp:
         def __init__(self):
-            self.is_stopping = False
+            self.state = SimpleNamespace()
+            self.state.is_stopping = False
 
         def stop(self):
-            assert not self.is_stopping
+            assert not self.state.is_stopping
-            self.is_stopping = True
+            self.state.is_stopping = True
 
         def add_task(self, func):
             loop = asyncio.get_event_loop()
@@ -90,11 +93,11 @@ def test_windows_workaround():
         if stop_first:
             app.stop()
             await asyncio.sleep(0.2)
-        assert app.is_stopping == stop_first
+        assert app.state.is_stopping == stop_first
         # First Ctrl+C: should call app.stop() within 0.1 seconds
         os.kill(os.getpid(), signal.SIGINT)
         await asyncio.sleep(0.2)
-        assert app.is_stopping
+        assert app.state.is_stopping
         assert app.stay_active_task.result() is None
         # Second Ctrl+C should raise
         with pytest.raises(KeyboardInterrupt):
@@ -108,3 +111,17 @@ def test_windows_workaround():
     assert res == "OK"
     res = loop.run_until_complete(atest(True))
     assert res == "OK"
+
+
+@pytest.mark.skipif(os.name == "nt", reason="May hang CI on py38/windows")
+def test_signals_with_invalid_invocation(app):
+    """Test if sanic register fails with invalid invocation"""
+
+    @app.route("/hello")
+    async def hello_route(request):
+        return HTTPResponse()
+
+    with pytest.raises(
+        InvalidUsage, match="Invalid event registration: Missing event name"
+    ):
+        app.listener(stop)

tests/test_tasks.py

@@ -80,6 +80,18 @@ async def test_purge_tasks(app: Sanic):
     assert len(app._task_registry) == 0
 
 
+async def test_purge_tasks_with_create_task(app: Sanic):
+    app.add_task(asyncio.create_task(dummy(3)), name="dummy")
+
+    await app.cancel_task("dummy")
+
+    assert len(app._task_registry) == 1
+
+    app.purge_tasks()
+
+    assert len(app._task_registry) == 0
+
+
 def test_shutdown_tasks_on_app_stop():
     class TestSanic(Sanic):
         shutdown_tasks = Mock()

tests/test_touchup.py

@@ -2,6 +2,8 @@ import logging
 
 import pytest
 
+from sanic_routing.exceptions import NotFound
+
 from sanic.signals import RESERVED_NAMESPACES
 from sanic.touchup import TouchUp
 
@@ -28,3 +30,50 @@ async def test_ode_removes_dispatch_events(app, caplog, verbosity, result):
             )
             in logs
         ) is result
+
+
+@pytest.mark.parametrize("skip_it,result", ((False, True), (True, False)))
+async def test_skip_touchup(app, caplog, skip_it, result):
+    app.config.TOUCHUP = not skip_it
+    with caplog.at_level(logging.DEBUG, logger="sanic.root"):
+        app.state.verbosity = 2
+        await app._startup()
+    assert app.signal_router.allow_fail_builtin is (not skip_it)
+    logs = caplog.record_tuples
+
+    for signal in RESERVED_NAMESPACES["http"]:
+        assert (
+            (
+                "sanic.root",
+                logging.DEBUG,
+                f"Disabling event: {signal}",
+            )
+            in logs
+        ) is result
+    not_found_exceptions = 0
+    # Skip-touchup disables NotFound exceptions on the dispatcher
+    for signal in RESERVED_NAMESPACES["http"]:
+        try:
+            await app.dispatch(event=signal, inline=True)
+        except NotFound:
+            not_found_exceptions += 1
+    assert (not_found_exceptions > 0) is result
+
+
+@pytest.mark.parametrize("skip_it,result", ((False, True), (True, True)))
+async def test_skip_touchup_non_reserved(app, caplog, skip_it, result):
+    app.config.TOUCHUP = not skip_it
+
+    @app.signal("foo.bar.one")
+    def sync_signal(*_):
+        ...
+
+    await app._startup()
+    assert app.signal_router.allow_fail_builtin is (not skip_it)
+    not_found_exception = False
+    # Skip-touchup doesn't disable NotFound exceptions for user-defined signals
+    try:
+        await app.dispatch(event="foo.baz.two", inline=True)
+    except NotFound:
+        not_found_exception = True
+    assert not_found_exception is result

tests/test_unix_socket.py

@@ -199,7 +199,7 @@ async def test_zero_downtime():
         for _ in range(40):
             async with httpx.AsyncClient(transport=transport) as client:
                 r = await client.get("http://localhost/sleep/0.1")
-                assert r.status_code == 200, r.content
+                assert r.status_code == 200, r.text
                 assert r.text == "Slept 0.1 seconds.\n"
 
     def spawn():

tests/test_utils.py

@@ -6,7 +6,6 @@ import pytest
 
 from sanic.exceptions import LoadFileException
 from sanic.utils import load_module_from_file_location
-from sanic.utils import str_to_bool as strtobool
 
 
 @pytest.mark.parametrize(
@@ -49,20 +48,3 @@ def test_load_module_from_file_location_using_env():
     module = load_module_from_file_location(location)
 
     assert isinstance(module, ModuleType)
-
-
-@pytest.mark.parametrize(
-    "valid,values",
-    (
-        (True, ["y", "yes", "t", "true", "on", "1", "Y", "yEs", "True"]),
-        (False, ["n", "no", "f", "false", "off", "0", "N", "No", "False"]),
-        (None, ["yyy", "foo"]),
-    ),
-)
-def test_strtobool(valid, values):
-    for value in values:
-        if valid is None:
-            with pytest.raises(ValueError):
-                strtobool(value)
-        else:
-            assert strtobool(value) is valid

tox.ini

@@ -21,6 +21,7 @@ commands =
     flake8 sanic
     black --config ./.black.toml --check --verbose sanic/
     isort --check-only sanic --profile=black
+    slotscheck --verbose -m sanic
 
 [testenv:type-checking]
 commands =