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mirror of https://github.com/eternnoir/pyTelegramBotAPI.git synced 2023-08-10 21:12:57 +03:00
pyTelegramBotAPI/telebot/ext/aio/webhooks.py
2022-10-30 17:21:53 +00:00

122 lines
3.6 KiB
Python

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