mirror of
https://github.com/lnbits/lnbits-legend.git
synced 2024-11-20 10:39:59 +01:00
d3fc52cd49
a big refactor that:
- fixes some issues that might have happened (or not) with asynchronous
reactions to payments;
- paves the way to https://github.com/lnbits/lnbits/issues/121;
- uses more async/await notation which just looks nice; and
- makes it simple(r?) for one extension to modify stuff from other extensions.
132 lines
4.0 KiB
Python
132 lines
4.0 KiB
Python
import importlib
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import warnings
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from quart import g
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from quart_trio import QuartTrio
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from quart_cors import cors # type: ignore
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from quart_compress import Compress # type: ignore
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from secure import SecureHeaders # type: ignore
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from .commands import db_migrate, handle_assets
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from .core import core_app
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from .helpers import get_valid_extensions, get_js_vendored, get_css_vendored, url_for_vendored
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from .proxy_fix import ASGIProxyFix
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from .tasks import run_deferred_async, invoice_listener, internal_invoice_listener, webhook_handler, grab_app_for_later
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from .settings import WALLET
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secure_headers = SecureHeaders(hsts=False)
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def create_app(config_object="lnbits.settings") -> QuartTrio:
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"""Create application factory.
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:param config_object: The configuration object to use.
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"""
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app = QuartTrio(__name__, static_folder="static")
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app.config.from_object(config_object)
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app.asgi_http_class = ASGIProxyFix
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cors(app)
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Compress(app)
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check_funding_source(app)
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register_assets(app)
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register_blueprints(app)
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register_filters(app)
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register_commands(app)
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register_request_hooks(app)
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register_async_tasks(app)
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grab_app_for_later(app)
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return app
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def check_funding_source(app: QuartTrio) -> None:
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@app.before_serving
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async def check_wallet_status():
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error_message, balance = WALLET.status()
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if error_message:
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warnings.warn(
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f" × The backend for {WALLET.__class__.__name__} isn't working properly: '{error_message}'",
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RuntimeWarning,
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)
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else:
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print(f" ✔️ {WALLET.__class__.__name__} seems to be connected and with a balance of {balance} msat.")
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def register_blueprints(app: QuartTrio) -> None:
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"""Register Flask blueprints / LNbits extensions."""
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app.register_blueprint(core_app)
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for ext in get_valid_extensions():
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try:
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ext_module = importlib.import_module(f"lnbits.extensions.{ext.code}")
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bp = getattr(ext_module, f"{ext.code}_ext")
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@bp.teardown_request
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async def after_request(exc):
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await ext_module.db.close_session()
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app.register_blueprint(bp, url_prefix=f"/{ext.code}")
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except Exception:
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raise ImportError(f"Please make sure that the extension `{ext.code}` follows conventions.")
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def register_commands(app: QuartTrio):
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"""Register Click commands."""
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app.cli.add_command(db_migrate)
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app.cli.add_command(handle_assets)
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def register_assets(app: QuartTrio):
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"""Serve each vendored asset separately or a bundle."""
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@app.before_request
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async def vendored_assets_variable():
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if app.config["DEBUG"]:
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g.VENDORED_JS = map(url_for_vendored, get_js_vendored())
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g.VENDORED_CSS = map(url_for_vendored, get_css_vendored())
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else:
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g.VENDORED_JS = ["/static/bundle.js"]
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g.VENDORED_CSS = ["/static/bundle.css"]
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def register_filters(app: QuartTrio):
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"""Jinja filters."""
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app.jinja_env.globals["SITE_TITLE"] = app.config["LNBITS_SITE_TITLE"]
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app.jinja_env.globals["EXTENSIONS"] = get_valid_extensions()
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def register_request_hooks(app: QuartTrio):
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"""Open the core db for each request so everything happens in a big transaction"""
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@app.before_request
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async def before_request():
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g.nursery = app.nursery
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@app.teardown_request
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async def after_request(exc):
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from lnbits.core import db
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await db.close_session()
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@app.after_request
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async def set_secure_headers(response):
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secure_headers.quart(response)
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return response
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def register_async_tasks(app):
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@app.route("/wallet/webhook", methods=["GET", "POST", "PUT", "PATCH", "DELETE"])
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async def webhook_listener():
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return await webhook_handler()
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@app.before_serving
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async def listeners():
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run_deferred_async(app.nursery)
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app.nursery.start_soon(invoice_listener)
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app.nursery.start_soon(internal_invoice_listener)
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@app.after_serving
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async def stop_listeners():
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pass
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