bridgy-fed/hub.py

80 wiersze
1.9 KiB
Python

"""Single-instance hub for ATProto and Nostr websocket subscriptions."""
from datetime import datetime, timedelta
import json
import logging
import os
from pathlib import Path
import arroba.server
from arroba.datastore_storage import DatastoreStorage
from arroba.util import service_jwt
from arroba import xrpc_sync
from flask import Flask, request
import google.cloud.logging
import lexrpc.server
import lexrpc.flask_server
from oauth_dropins.webutil import (
appengine_info,
appengine_config,
flask_util,
util,
)
import requests
from common import USER_AGENT
util.set_user_agent(USER_AGENT)
logger = logging.getLogger(__name__)
#
# Flask app
#
app = Flask(__name__)
app.json.compact = False
app_dir = Path(__file__).parent
app.config.from_pyfile(app_dir / 'config.py')
app.wsgi_app = flask_util.ndb_context_middleware(
app.wsgi_app, client=appengine_config.ndb_client,
# disable in-memory cache
# (also in tests/testutil.py)
# https://github.com/googleapis/python-ndb/issues/888
cache_policy=lambda key: False,
)
@app.get('/liveness_check')
@app.get('/readiness_check')
def health_check():
"""App Engine Flex health checks.
https://cloud.google.com/appengine/docs/flexible/reference/app-yaml?tab=python#updated_health_checks
"""
return 'OK'
#
# XRPC server
#
lexrpc.flask_server.init_flask(arroba.server.server, app)
@app.post('/_ah/queue/atproto-commit')
def atproto_commit():
"""Handler for atproto-commit tasks. Enqueues the commit for subscribeRepos.
"""
logger.info(f'Params: {request.values}')
seq = request.form['seq']
logger.info(f'Got atproto-commit task for seq {seq}')
if not util.is_int(seq):
flask_util.error(f'seq {seq} is not int')
for commit_data in DatastoreStorage().read_commits_by_seq(start=int(seq)):
logger.info(f'Enqueueing commit {commit_data.commit.cid}')
xrpc_sync.enqueue_commit(commit_data)
return 'OK'