130 lines
3.2 KiB
Python
130 lines
3.2 KiB
Python
import asyncio
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from datetime import datetime, timedelta
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import logging
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import os
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import signal
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from uuid import uuid4
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from aiohttp import web
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from cachetools import LRUCache
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from relay.config import RelayConfig
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from relay.database import RelayDatabase
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from relay.misc import (
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check_open_port,
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DotDict,
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set_app,
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)
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from relay.views import routes
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class Application(web.Application):
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def __init__(self, cfgpath, middlewares=None):
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web.Application.__init__(self, middlewares=middlewares)
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self["starttime"] = None
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self["running"] = False
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self["is_docker"] = bool(os.environ.get("DOCKER_RUNNING"))
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self["config"] = RelayConfig(cfgpath)
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if not self["config"].load():
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self["config"].save()
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self["database"] = RelayDatabase(self["config"])
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self["database"].load()
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self["cache"] = DotDict(
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{
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key: Cache(maxsize=self["config"][key])
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for key in self["config"].cachekeys
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}
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)
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self["semaphore"] = asyncio.Semaphore(self["config"].push_limit)
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self.set_signal_handler()
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set_app(self)
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@property
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def cache(self):
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return self["cache"]
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@property
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def config(self):
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return self["config"]
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@property
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def database(self):
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return self["database"]
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@property
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def is_docker(self):
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return self["is_docker"]
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@property
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def semaphore(self):
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return self["semaphore"]
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@property
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def uptime(self):
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if not self["starttime"]:
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return timedelta(seconds=0)
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uptime = datetime.now() - self["starttime"]
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return timedelta(seconds=uptime.seconds)
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def set_signal_handler(self):
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signal.signal(signal.SIGHUP, self.stop)
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signal.signal(signal.SIGINT, self.stop)
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signal.signal(signal.SIGQUIT, self.stop)
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signal.signal(signal.SIGTERM, self.stop)
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def run(self):
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if not check_open_port(self.config.listen, self.config.port):
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return logging.error(
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f"A server is already running on port {self.config.port}"
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)
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for route in routes:
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self.router.add_route(*route)
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logging.info(
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f"Starting webserver at {self.config.host} ({self.config.listen}:{self.config.port})"
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)
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asyncio.run(self.handle_run())
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def stop(self, *_):
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self["running"] = False
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async def handle_run(self):
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self["running"] = True
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runner = web.AppRunner(
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self, access_log_format='%{X-Forwarded-For}i "%r" %s %b "%{User-Agent}i"'
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)
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await runner.setup()
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site = web.TCPSite(
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runner, host=self.config.listen, port=self.config.port, reuse_address=True
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)
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await site.start()
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self["starttime"] = datetime.now()
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while self["running"]:
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await asyncio.sleep(0.25)
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await site.stop()
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self["starttime"] = None
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self["running"] = False
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class Cache(LRUCache):
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def set_maxsize(self, value):
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self.__maxsize = int(value)
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@web.middleware
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async def request_id_middleware(request, handler):
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request.id = uuid4()
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return await handler(request)
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