5cbe355660
- Replace RSA key exchange with SRP (Secure Remote Password) - Password never transmitted over network - Add unit tests for endpoints - Fix datetime.UTC compatibility for Python < 3.11 - Fix logger.exception usage - Update README with new auth flow diagram
52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
import asyncio
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from contextlib import suppress
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from cryptography.fernet import Fernet
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from sanic import Sanic
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from sanic_ext import Extend
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from .managers import ConnectionManager
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from .stores import MessageStore, UserSessionStore
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from .srp_auth import SRPAuthManager
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from .logger import logger
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from .routes import register_routes
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def create_app(password: str = "", name: str = "cmd-chat-server") -> Sanic:
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app = Sanic(name)
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Extend(app)
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app.ctx.message_store = MessageStore()
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app.ctx.session_store = UserSessionStore()
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app.ctx.connection_manager = ConnectionManager()
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app.ctx.srp_manager = SRPAuthManager(password)
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app.ctx.fernet_key = Fernet.generate_key()
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app.ctx.cleanup_task = None
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register_lifecycle(app)
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register_routes(app)
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return app
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def register_lifecycle(app: Sanic) -> None:
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@app.before_server_start
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async def setup(app: Sanic):
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logger.info("Server starting...")
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app.ctx.cleanup_task = asyncio.create_task(cleanup_stale_sessions(app))
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@app.after_server_stop
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async def teardown(app: Sanic):
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logger.info("Server shutting down...")
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if app.ctx.cleanup_task:
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app.ctx.cleanup_task.cancel()
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with suppress(asyncio.CancelledError):
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await app.ctx.cleanup_task
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async def cleanup_stale_sessions(app: Sanic) -> None:
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while True:
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with suppress(asyncio.CancelledError):
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await asyncio.sleep(300)
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app.ctx.session_store.cleanup_stale()
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