ryg/royalnet
ryg/royalnet
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Rework constellation, somehow without breaking almost anything

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This commit is contained in:
Steffo 2019-12-10 00:21:52 +01:00
parent b44b5fc587
commit 5d47c7c510
5 changed files with 158 additions and 20 deletions
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52
.idea/codeStyles/Project.xml Normal file
View file

@ -0,0 +1,52 @@
<component name="ProjectCodeStyleConfiguration">
<code_scheme name="Project" version="173">
<DBN-PSQL>
<case-options enabled="true">
<option name="KEYWORD_CASE" value="lower" />
<option name="FUNCTION_CASE" value="lower" />
<option name="PARAMETER_CASE" value="lower" />
<option name="DATATYPE_CASE" value="lower" />
<option name="OBJECT_CASE" value="preserve" />
</case-options>
<formatting-settings enabled="false" />
</DBN-PSQL>
<DBN-SQL>
<case-options enabled="true">
<option name="KEYWORD_CASE" value="lower" />
<option name="FUNCTION_CASE" value="lower" />
<option name="PARAMETER_CASE" value="lower" />
<option name="DATATYPE_CASE" value="lower" />
<option name="OBJECT_CASE" value="preserve" />
</case-options>
<formatting-settings enabled="false">
<option name="STATEMENT_SPACING" value="one_line" />
<option name="CLAUSE_CHOP_DOWN" value="chop_down_if_statement_long" />
<option name="ITERATION_ELEMENTS_WRAPPING" value="chop_down_if_not_single" />
</formatting-settings>
</DBN-SQL>
<DBN-PSQL>
<case-options enabled="true">
<option name="KEYWORD_CASE" value="lower" />
<option name="FUNCTION_CASE" value="lower" />
<option name="PARAMETER_CASE" value="lower" />
<option name="DATATYPE_CASE" value="lower" />
<option name="OBJECT_CASE" value="preserve" />
</case-options>
<formatting-settings enabled="false" />
</DBN-PSQL>
<DBN-SQL>
<case-options enabled="true">
<option name="KEYWORD_CASE" value="lower" />
<option name="FUNCTION_CASE" value="lower" />
<option name="PARAMETER_CASE" value="lower" />
<option name="DATATYPE_CASE" value="lower" />
<option name="OBJECT_CASE" value="preserve" />
</case-options>
<formatting-settings enabled="false">
<option name="STATEMENT_SPACING" value="one_line" />
<option name="CLAUSE_CHOP_DOWN" value="chop_down_if_statement_long" />
<option name="ITERATION_ELEMENTS_WRAPPING" value="chop_down_if_not_single" />
</formatting-settings>
</DBN-SQL>
</code_scheme>
</component>

11
.idea/dataSources.xml Normal file
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@ -0,0 +1,11 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="DataSourceManagerImpl" format="xml" multifile-model="true">
<data-source source="LOCAL" name="scaleway.steffo.eu" uuid="fe046003-9eda-4855-a2da-ae3a0de3aacd">
<driver-ref>postgresql</driver-ref>
<synchronize>true</synchronize>
<jdbc-driver>org.postgresql.Driver</jdbc-driver>
<jdbc-url>jdbc:postgresql://scaleway.steffo.eu:5432/royalnet</jdbc-url>
</data-source>
</component>
</project>

64
royalnet/constellation/constellation.py
View file

@ -7,6 +7,7 @@ import royalnet.herald as rh
import royalnet.utils as ru
import royalnet.commands as rc
from .star import PageStar, ExceptionStar
from ..utils import init_logging
try:
import uvicorn
@ -51,7 +52,8 @@ class Constellation:
herald_cfg: Dict[str, Any],
packs_cfg: Dict[str, Any],
constellation_cfg: Dict[str, Any],
**_):
logging_cfg: Dict[str, Any]
):
if Starlette is None:
raise ImportError("`constellation` extra is not installed")
@ -87,9 +89,19 @@ class Constellation:
self.alchemy = ra.Alchemy(alchemy_cfg["database_url"], tables)
log.info(f"Alchemy: {self.alchemy}")
# Logging
self._logging_cfg: Dict[str, Any] = logging_cfg
"""The logging config for the :class:`Constellation` is stored to initialize the logger when the first page is
requested, as disabling the :mod:`uvicorn` logging also disables all logging in the process in general."""
# Herald
self.herald: Optional[rh.Link] = None
"""The :class:`Link` object connecting the :class:`Constellation` to the rest of the herald network."""
"""The :class:`Link` object connecting the :class:`Constellation` to the rest of the herald network.
As is the case with the logging module, it will be started on the first request received by the
:class:`Constellation`, as the event loop won't be available before that."""
self._herald_cfg: Dict[str, Any] = herald_cfg
"""The herald config for the :class:`Constellation` is stored to initialize the :class:`rh.Herald` later."""
self.herald_task: Optional[aio.Task] = None
"""A reference to the :class:`aio.Task` that runs the :class:`rh.Link`."""
@ -120,8 +132,7 @@ class Constellation:
elif not herald_cfg["enabled"]:
log.info("Herald: disabled")
else:
self.init_herald(herald_cfg)
log.info(f"Herald: enabled")
log.info(f"Herald: will be enabled on first request")
# Register PageStars and ExceptionStars
for pack_name in packs:
@ -151,6 +162,11 @@ class Constellation:
self.port: int = constellation_cfg["port"]
"""The port on which the :class:`Constellation` will listen for connection on."""
self.loop: Optional[aio.AbstractEventLoop] = None
"""The event loop of the :class:`Constellation`.
Because of how :mod:`uvicorn` runs, it will stay :const:`None` until the first page is requested."""
# TODO: is this a good idea?
def interface_factory(self) -> Type[rc.CommandInterface]:
"""Create the :class:`rc.CommandInterface` class for the :class:`Constellation`."""
@ -241,29 +257,52 @@ class Constellation:
log.debug(f"Registering: {SelectedEvent.__qualname__} -> {SelectedEvent.name}")
self.events[SelectedEvent.name] = event
def _first_page_check(self):
if self.loop is None:
self.loop = aio.get_running_loop()
self.init_herald(self._herald_cfg)
self.loop.create_task(self.herald.run())
init_logging(self._logging_cfg)
def _page_star_wrapper(self, page_star: PageStar):
async def f(request):
self._first_page_check()
log.info(f"Running {page_star}")
return await page_star.page(request)
return page_star.path, f, page_star.methods
def _exc_star_wrapper(self, exc_star: ExceptionStar):
async def f(request):
self._first_page_check()
log.info(f"Running {exc_star}")
return await exc_star.page(request)
return exc_star.error, f
def register_page_stars(self, page_stars: List[Type[PageStar]], pack_cfg: Dict[str, Any]):
for SelectedPageStar in page_stars:
log.debug(f"Registering: {SelectedPageStar.path} -> {SelectedPageStar.__qualname__}")
try:
page_star_instance = SelectedPageStar(constellation=self, config=pack_cfg)
page_star_instance = SelectedPageStar(interface=self.Interface(pack_cfg))
except Exception as e:
log.error(f"Skipping: "
f"{SelectedPageStar.__qualname__} - {e.__class__.__qualname__} in the initialization.")
ru.sentry_exc(e)
continue
self.starlette.add_route(page_star_instance.path, page_star_instance.page, page_star_instance.methods)
self.starlette.add_route(*self._page_star_wrapper(page_star_instance))
def register_exc_stars(self, exc_stars: List[Type[ExceptionStar]], pack_cfg: Dict[str, Any]):
for SelectedPageStar in exc_stars:
log.debug(f"Registering: {SelectedPageStar.error} -> {SelectedPageStar.__qualname__}")
for SelectedExcStar in exc_stars:
log.debug(f"Registering: {SelectedExcStar.error} -> {SelectedExcStar.__qualname__}")
try:
page_star_instance = SelectedPageStar(constellation=self, config=pack_cfg)
exc_star_instance = SelectedExcStar(interface=self.Interface(pack_cfg))
except Exception as e:
log.error(f"Skipping: "
f"{SelectedPageStar.__qualname__} - {e.__class__.__qualname__} in the initialization.")
f"{SelectedExcStar.__qualname__} - {e.__class__.__qualname__} in the initialization.")
ru.sentry_exc(e)
continue
self.starlette.add_exception_handler(page_star_instance.error, page_star_instance.page)
self.starlette.add_exception_handler(*self._exc_star_wrapper(exc_star_instance))
def run_blocking(self):
log.info(f"Running Constellation on https://{self.address}:{self.port}/...")
@ -300,7 +339,8 @@ class Constellation:
constellation = cls(alchemy_cfg=alchemy_cfg,
herald_cfg=herald_cfg,
packs_cfg=packs_cfg,
constellation_cfg=constellation_cfg)
constellation_cfg=constellation_cfg,
logging_cfg=logging_cfg)
# Run the server
constellation.run_blocking()

22
royalnet/constellation/star.py
View file

@ -1,6 +1,7 @@
from typing import *
from starlette.requests import Request
from starlette.responses import Response
from royalnet.commands import CommandInterface
if TYPE_CHECKING:
from .constellation import Constellation
@ -10,9 +11,8 @@ class Star:
"""A Star is a class representing a part of the website.
It shouldn't be used directly: please use :class:`PageStar` and :class:`ExceptionStar` instead!"""
def __init__(self, config: Dict[str, Any], constellation: "Constellation"):
self.config: Dict[str, Any] = config
self.constellation: "Constellation" = constellation
def __init__(self, interface: CommandInterface):
self.interface: CommandInterface = interface
async def page(self, request: Request) -> Response:
"""The function generating the :class:`~starlette.Response` to a web :class:`~starlette.Request`.
@ -20,21 +20,31 @@ class Star:
If it raises an error, the corresponding :class:`ExceptionStar` will be used to handle the request instead."""
raise NotImplementedError()
@property
def constellation(self) -> "Constellation":
"""A shortcut for the :class:`Constellation`."""
return self.interface.constellation
@property
def alchemy(self):
"""A shortcut for the :class:`~royalnet.alchemy.Alchemy` of the :class:`Constellation`."""
return self.constellation.alchemy
return self.interface.constellation.alchemy
# noinspection PyPep8Naming
@property
def Session(self):
"""A shortcut for the :class:`~royalnet.alchemy.Alchemy` :class:`Session` of the :class:`Constellation`."""
return self.constellation.alchemy.Session
return self.interface.constellation.alchemy.Session
@property
def session_acm(self):
"""A shortcut for :func:`.alchemy.session_acm` of the :class:`Constellation`."""
return self.constellation.alchemy.session_acm
return self.interface.constellation.alchemy.session_acm
@property
def config(self) -> Dict[str, Any]:
"""A shortcut for the Pack configuration of the :class:`Constellation`."""
return self.interface.config
def __repr__(self):
return f"<{self.__class__.__qualname__}>"

27
royalnet/utils/log.py
View file

@ -9,7 +9,32 @@ except ImportError:
l: logging.Logger = logging.getLogger(__name__)
# From https://stackoverflow.com/a/56810619/4334568
def reset_logging():
manager = logging.root.manager
manager.disabled = logging.NOTSET
for logger in manager.loggerDict.values():
if isinstance(logger, logging.Logger):
logger.setLevel(logging.NOTSET)
logger.propagate = True
logger.disabled = False
logger.filters.clear()
handlers = logger.handlers.copy()
for handler in handlers:
# Copied from `logging.shutdown`.
try:
handler.acquire()
handler.flush()
handler.close()
except (OSError, ValueError):
pass
finally:
handler.release()
logger.removeHandler(handler)
def init_logging(logging_cfg: Dict[str, Any]):
reset_logging()
loggers_cfg = logging_cfg["Loggers"]
for logger_name in loggers_cfg:
if logger_name == "root":
@ -23,7 +48,7 @@ def init_logging(logging_cfg: Dict[str, Any]):
stream_handler.formatter = coloredlogs.ColoredFormatter(logging_cfg["log_format"], style="{")
else:
stream_handler.formatter = logging.Formatter(logging_cfg["log_format"], style="{")
if len(logging.root.handlers) < 1:
logging.root.handlers.clear()
logging.root.addHandler(stream_handler)
l.debug("Logging: ready")