100 lines
3.4 KiB
Python
100 lines
3.4 KiB
Python
import enum
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from flask import Flask
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from flask_cors import CORS
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from datetime import datetime, date
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from flask.json import JSONEncoder, jsonify
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from sqlalchemy.exc import OperationalError
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from werkzeug.exceptions import HTTPException
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from flaschengeist.utils.plugin import get_plugins
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from . import logger
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from .plugins import Plugin
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from .config import config, configure_app
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from .utils.hook import Hook
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class CustomJSONEncoder(JSONEncoder):
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def default(self, o):
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try:
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# Check if custom model
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return o.serialize()
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except AttributeError:
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pass
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if isinstance(o, datetime) or isinstance(o, date):
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return o.isoformat()
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if isinstance(o, enum.Enum):
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return o.value
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try:
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# Check if iterable
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iterable = iter(o)
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except TypeError:
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pass
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else:
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return list(iterable)
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return JSONEncoder.default(self, o)
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@Hook("plugins.loaded")
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def load_plugins(app: Flask):
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def load_plugin(cls: type[Plugin]):
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logger.debug(f"Load plugin {cls.id}")
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# Initialize plugin with config section
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plugin = cls(config.get(plugin_class.id, config.get(plugin_class.id.split(".")[-1], {})))
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# Register blueprint if provided
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if plugin.blueprint is not None:
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app.register_blueprint(plugin.blueprint)
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# Save plugin application context
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app.config.setdefault("FG_PLUGINS", {})[plugin.id] = plugin
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return plugin
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for plugin_class in get_plugins():
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names = [plugin_class.id, plugin_class.id.split(".")[-1]]
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if config["FLASCHENGEIST"]["auth"] in names:
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# Load authentification plugin
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app.config["FG_AUTH_BACKEND"] = load_plugin(plugin_class)
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logger.info(f"Using authentication plugin: {plugin_class.id}")
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elif any([i in config and config[i].get("enabled", False) for i in names]):
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# Load all other enabled plugins
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load_plugin(plugin_class)
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logger.info(f"Using plugin: {plugin_class.id}")
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else:
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logger.debug(f"Skip disabled plugin {plugin_class.id}")
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if "FG_AUTH_BACKEND" not in app.config:
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logger.fatal("No authentication plugin configured or authentication plugin not found")
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raise RuntimeError("No authentication plugin configured or authentication plugin not found")
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def create_app(test_config=None, cli=False):
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app = Flask(__name__)
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app.json_encoder = CustomJSONEncoder
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CORS(app)
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with app.app_context():
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from flaschengeist.database import db, migrate
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configure_app(app, test_config, cli)
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db.init_app(app)
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migrate.init_app(app, db, compare_type=True)
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load_plugins(app)
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@app.route("/", methods=["GET"])
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def __get_state():
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from . import __version__ as version
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return jsonify({"plugins": app.config["FG_PLUGINS"], "version": version})
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@app.errorhandler(Exception)
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def handle_exception(e):
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if isinstance(e, HTTPException):
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logger.debug(e.description, exc_info=True)
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return jsonify({"error": e.description}), e.code
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if isinstance(e, OperationalError):
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logger.error(e, exc_info=True)
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return {"error": "Database unavailable"}, 504
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logger.error(str(e), exc_info=True)
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return jsonify({"error": "Internal server error occurred"}), 500
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return app
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