103 lines
3.1 KiB
Python
103 lines
3.1 KiB
Python
"""
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This file is used by AsyncTeleBot.run_webhooks() function.
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Fastapi and starlette(0.20.2+) libraries are required to run this script.
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"""
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# modules required for running this script
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fastapi_installed = True
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try:
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import fastapi
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from fastapi.responses import JSONResponse
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from fastapi.requests import Request
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from uvicorn import Server, Config
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except ImportError:
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fastapi_installed = False
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import asyncio
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from telebot.types import Update
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from typing import Optional
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class AsyncWebhookListener:
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def __init__(self, bot,
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secret_token: str, host: Optional[str]="127.0.0.1",
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port: Optional[int]=443,
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ssl_context: Optional[tuple]=None,
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url_path: Optional[str]=None,
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debug: Optional[bool]=False
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) -> None:
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"""
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Aynchronous implementation of webhook listener
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for asynchronous version of telebot.
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:param bot: TeleBot instance
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:param secret_token: Telegram secret token
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:param host: Webhook host
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:param port: Webhook port
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:param ssl_context: SSL context
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:param url_path: Webhook url path
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:param debug: Debug mode
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"""
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self._check_dependencies()
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self.app = fastapi.FastAPI()
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self._secret_token = secret_token
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self._bot = bot
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self._port = port
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self._host = host
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self._ssl_context = ssl_context
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self._url_path = url_path
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self._debug = debug
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self._prepare_endpoint_urls()
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def _check_dependencies(self):
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if not fastapi_installed:
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raise ImportError('Fastapi or uvicorn is not installed. Please install it via pip.')
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import starlette
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if starlette.__version__ < '0.20.2':
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raise ImportError('Starlette version is too old. Please upgrade it: `pip3 install starlette -U`')
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return
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def _prepare_endpoint_urls(self):
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self.app.add_api_route(endpoint=self.process_update,path= self._url_path, methods=["POST"])
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async def process_update(self, request: Request, update: dict):
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"""
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Processes updates.
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"""
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# header containsX-Telegram-Bot-Api-Secret-Token
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if request.headers.get('X-Telegram-Bot-Api-Secret-Token') != self._secret_token:
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# secret token didn't match
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return JSONResponse(status_code=403, content={"error": "Forbidden"})
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if request.headers.get('content-type') == 'application/json':
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json_string = update
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asyncio.create_task(self._bot.process_new_updates([Update.de_json(json_string)]))
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return JSONResponse('', status_code=200)
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return JSONResponse(status_code=403, content={"error": "Forbidden"})
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async def run_app(self):
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"""
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Run app with the given parameters.
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"""
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config = Config(app=self.app,
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host=self._host,
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port=self._port,
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debug=self._debug,
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ssl_certfile=self._ssl_context[0],
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ssl_keyfile=self._ssl_context[1]
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)
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server = Server(config)
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await server.serve()
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await self._bot.close_session() |