130 lines
3.8 KiB
Python
130 lines
3.8 KiB
Python
# w.c.s. - web application for online forms
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# Copyright (C) 2005-2023 Entr'ouvert
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, see <http://www.gnu.org/licenses/>.
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import configparser
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import copy
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import threading
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import django.apps
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from django.conf import settings
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from quixote import get_publisher
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from .publisher import get_publisher_class
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class TenantAwareThread(threading.Thread):
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def __init__(self, *args, **kwargs):
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self.publisher = copy.copy(get_publisher())
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if self.publisher:
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self.publisher.detach()
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super().__init__(*args, **kwargs)
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def run(self):
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if self.publisher:
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self.publisher.set_in_thread()
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super().run()
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class _Timer(TenantAwareThread):
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"""Call a function after a specified number of seconds:
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t = Timer(30.0, f, args=[], kwargs={})
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t.start()
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t.cancel() # stop the timer's action if it's still waiting
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"""
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def __init__(self, interval, function, args=None, kwargs=None):
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super().__init__()
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self.interval = interval
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self.function = function
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self.args = args or []
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self.kwargs = kwargs or {}
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self.finished = threading.Event()
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def cancel(self):
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"""Stop the timer if it hasn't finished yet"""
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self.finished.set()
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def run(self):
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self.finished.wait(self.interval)
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if not self.finished.is_set():
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self.function(*self.args, **self.kwargs)
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self.finished.set()
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class _MainThread(TenantAwareThread):
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def __init__(self):
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super().__init__(name='MainThread')
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self._Thread__started.set()
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self._set_ident()
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with threading._active_limbo_lock:
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threading._active[threading._get_ident()] = self
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def _set_daemon(self):
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return False
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def _exitfunc(self):
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self._Thread__stop()
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t = threading._pickSomeNonDaemonThread()
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if t:
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if __debug__:
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self._note('%s: waiting for other threads', self)
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while t:
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t.join()
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t = threading._pickSomeNonDaemonThread()
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if __debug__:
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self._note('%s: exiting', self)
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self._Thread__delete()
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class _DummyThread(TenantAwareThread):
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def __init__(self):
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super().__init__(name=threading._newname('Dummy-%d'), daemon=True)
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self._started.set()
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self._set_ident()
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with threading._active_limbo_lock:
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threading._active[self._ident] = self
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def _stop(self):
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pass
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def is_alive(self):
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assert not self._is_stopped and self._started.is_set()
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return True
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def join(self, timeout=None):
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assert False, 'cannot join a dummy thread'
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class AppConfig(django.apps.AppConfig):
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name = 'wcs.qommon'
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def ready(self):
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config = configparser.ConfigParser()
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if settings.WCS_LEGACY_CONFIG_FILE:
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config.read(settings.WCS_LEGACY_CONFIG_FILE)
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threading.Thread = TenantAwareThread
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threading._DummyThread = _DummyThread
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threading._MainThread = _MainThread
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threading._Timer = _Timer
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get_publisher_class().configure(config)
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get_publisher_class().register_tld_names = True
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get_publisher_class().init_publisher_class()
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