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78 lines
3.3 KiB
Python
78 lines
3.3 KiB
Python
# This file is part of Radicale - CalDAV and CardDAV server
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# Copyright © 2008 Nicolas Kandel
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# Copyright © 2008 Pascal Halter
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# Copyright © 2008-2017 Guillaume Ayoub
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# Copyright © 2017-2022 Unrud <unrud@outlook.com>
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# Copyright © 2024-2024 Peter Bieringer <pb@bieringer.de>
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#
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# This library 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 3 of the License, or
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# (at your option) any later version.
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#
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# This library 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 Radicale. If not, see <http://www.gnu.org/licenses/>.
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"""
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Entry point for external WSGI servers (like uWSGI or Gunicorn).
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Configuration files can be specified in the environment variable
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``RADICALE_CONFIG``.
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"""
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import os
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import threading
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from typing import Iterable, Optional, cast
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from radicale import config, log, types, utils
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from radicale.app import Application
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from radicale.log import logger
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VERSION: str = utils.package_version("radicale")
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_application_instance: Optional[Application] = None
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_application_config_path: Optional[str] = None
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_application_lock = threading.Lock()
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def _get_application_instance(config_path: str, wsgi_errors: types.ErrorStream
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) -> Application:
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global _application_instance, _application_config_path
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with _application_lock:
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if _application_instance is None:
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log.setup()
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with log.register_stream(wsgi_errors):
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_application_config_path = config_path
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configuration = config.load(config.parse_compound_paths(
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config.DEFAULT_CONFIG_PATH,
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config_path))
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log.set_level(cast(str, configuration.get("logging", "level")), configuration.get("logging", "backtrace_on_debug"))
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# Log configuration after logger is configured
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default_config_active = True
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for source, miss in configuration.sources():
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logger.info("%s %s", "Skipped missing/unreadable" if miss
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else "Loaded", source)
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if not miss and source != "default config":
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default_config_active = False
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if default_config_active:
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logger.warning("%s", "No config file found/readable - only default config is active")
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_application_instance = Application(configuration)
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if _application_config_path != config_path:
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raise ValueError("RADICALE_CONFIG must not change: %r != %r" %
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(config_path, _application_config_path))
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return _application_instance
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def application(environ: types.WSGIEnviron,
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start_response: types.WSGIStartResponse) -> Iterable[bytes]:
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"""Entry point for external WSGI servers."""
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config_path = environ.get("RADICALE_CONFIG",
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os.environ.get("RADICALE_CONFIG"))
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app = _get_application_instance(config_path, environ["wsgi.errors"])
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return app(environ, start_response)
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