bridgy-fed/hub.py

91 wiersze
2.4 KiB
Python

"""Single-instance hub for ATProto and Nostr websocket subscriptions."""
import logging
import os
from pathlib import Path
from threading import Timer
import arroba.server
from arroba import xrpc_sync
from flask import Flask, request
import lexrpc.client
import lexrpc.flask_server
from oauth_dropins.webutil import (
appengine_config,
flask_util,
util,
)
# all protocols, and atproto-poll-notifs task handler
import activitypub, atproto, web
from common import USER_AGENT
import models
logger = logging.getLogger(__name__)
util.set_user_agent(USER_AGENT)
models.reset_protocol_properties()
#
# 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, other URL routes
#
lexrpc.flask_server.init_flask(arroba.server.server, app)
app.add_url_rule('/queue/atproto-poll-notifs',
view_func=atproto.poll_notifications,
methods=['GET', 'POST'])
app.add_url_rule('/queue/atproto-poll-posts',
view_func=atproto.poll_posts,
methods=['GET', 'POST'])
@app.post('/queue/atproto-commit')
@flask_util.cloud_tasks_only
def atproto_commit():
"""Handler for atproto-commit tasks.
Triggers `subscribeRepos` to check for new commits.
"""
xrpc_sync.send_new_commits()
return 'OK'
# send requestCrawl to BGS
# delay because we're not up and serving XRPCs at this point yet. not sure why not.
if 'GAE_INSTANCE' in os.environ: # prod
def request_crawl():
bgs = lexrpc.client.Client(f'https://{os.environ["BGS_HOST"]}',
headers={'User-Agent': USER_AGENT})
resp = bgs.com.atproto.sync.requestCrawl({'hostname': os.environ['PDS_HOST']})
logger.info(resp)
Timer(15, request_crawl).start()
logger.info('Will send BGS requestCrawl in 15s')