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83 lines
2.6 KiB
Python
83 lines
2.6 KiB
Python
2 years ago
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import logging
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import os
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from time import sleep
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import argh
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import gevent.event
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from common import dateutil
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from common.database import DBManager
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from dateutil.parser import ParserError
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from gevent import signal
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from gevent.pywsgi import WSGIServer
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from escher_api.escher import app
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def cors(app):
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"""WSGI middleware that sets CORS headers"""
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HEADERS = [
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("Access-Control-Allow-Credentials", "false"),
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("Access-Control-Allow-Headers", "*"),
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("Access-Control-Allow-Methods", "GET,POST,HEAD"),
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("Access-Control-Allow-Origin", "*"),
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("Access-Control-Max-Age", "86400"),
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]
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def handle(environ, start_response):
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def _start_response(status, headers, exc_info=None):
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headers += HEADERS
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return start_response(status, headers, exc_info)
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return app(environ, _start_response)
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return handle
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def servelet(server):
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logging.info('Starting WSGI server.')
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server.serve_forever()
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@argh.arg('channel',
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help="Twitch channel to transcribe.")
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@argh.arg('--host',
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help='Address or socket server will listen to. Default is 0.0.0.0 (everything on the local machine).')
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@argh.arg('--port',
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help='Port server will listen on. Default is 8004.')
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@argh.arg('--database',
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help='Postgres connection string, which is either a space-separated list of key=value pairs, or a URI like: '
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'postgresql://USER:PASSWORD@HOST/DBNAME?KEY=VALUE')
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@argh.arg('--bustime-start',
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help='The start time in UTC for the event, for UTC-Bustime conversion')
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@argh.arg('--base-dir',
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help='Directory from which segments will be grabbed. Default is current working directory.')
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def main(channel, database="", host='0.0.0.0', port=8010, bustime_start=None, base_dir=None):
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if bustime_start is None:
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logging.error("Missing --bustime-start!")
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exit(1)
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server = WSGIServer((host, port), cors(app))
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try:
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app.bustime_start = dateutil.parse(bustime_start)
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except ParserError:
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logging.error("Invalid --bustime-start!")
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exit(1)
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app.segments_dir = os.path.join(base_dir, channel, "source")
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app.db_manager = DBManager(dsn=database)
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stopping = gevent.event.Event()
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def stop():
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logging.info("Shutting down")
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stopping.set()
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gevent.signal_handler(signal.SIGTERM, stop)
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serve = gevent.spawn(servelet, server)
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# Wait for either the stop signal or the server to oops out.
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gevent.wait([serve, stopping], count=1)
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server.stop()
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serve.get() # Wait for server to shut down and/or re-raise if serve_forever() errored
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logging.info("Gracefully shut down")
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