matrix-alertbot/main.py
2020-02-24 23:56:09 +00:00

101 lines
3.3 KiB
Python

#!/usr/bin/env python3
import logging
import asyncio
from time import sleep
from nio import (
AsyncClient,
AsyncClientConfig,
RoomMessageText,
InviteEvent,
LoginError,
LocalProtocolError,
)
from aiohttp import (
ServerDisconnectedError,
ClientConnectionError,
)
from callbacks import Callbacks
from config import Config
from storage import Storage
logger = logging.getLogger(__name__)
async def main():
# Read config file
config = Config("config.yaml")
# Configure the database
store = Storage(config.database_filepath)
# Configuration options for the AsyncClient
client_config = AsyncClientConfig(
max_limit_exceeded=0,
max_timeouts=0,
store_sync_tokens=True,
encryption_enabled=config.enable_encryption,
)
# Initialize the matrix client
client = AsyncClient(
config.homeserver_url,
config.user_id,
device_id=config.device_id,
store_path=config.store_filepath,
config=client_config,
)
# Set up event callbacks
callbacks = Callbacks(client, store, config)
client.add_event_callback(callbacks.message, (RoomMessageText,))
client.add_event_callback(callbacks.invite, (InviteEvent,))
# Keep trying to reconnect on failure (with some time in-between)
while True:
try:
# Try to login with the configured username/password
try:
login_response = await client.login(
password=config.user_password,
device_name=config.device_name,
)
# Check if login failed
if type(login_response) == LoginError:
logger.error(f"Failed to login: %s", login_response.message)
return False
except LocalProtocolError as e:
# There's an edge case here where the user enables encryption but hasn't installed
# the correct C dependencies. In that case, a LocalProtocolError is raised on login.
# Warn the user if these conditions are met.
if config.enable_encryption:
logger.fatal(
"Failed to login and encryption is enabled. Have you installed the correct dependencies? "
"https://github.com/poljar/matrix-nio#installation"
)
return False
else:
# We don't know why this was raised. Throw it at the user
logger.fatal("Error logging in: %s", e)
# Login succeeded!
# Sync encryption keys with the server
# Required for participating in encrypted rooms
if client.should_upload_keys:
await client.keys_upload()
logger.info(f"Logged in as {config.user_id}")
await client.sync_forever(timeout=30000, full_state=True)
except (ClientConnectionError, ServerDisconnectedError):
logger.warning("Unable to connect to homeserver, retrying in 15s...")
# Sleep so we don't bombard the server with login requests
sleep(15)
finally:
# Make sure to close the client connection on disconnect
await client.close()
asyncio.get_event_loop().run_until_complete(main())