107 lines
3.1 KiB
Python
107 lines
3.1 KiB
Python
import pkg_resources
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import requests
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from requests import Response
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from mobilizon_reshare.formatting.description import html_to_markdown
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from mobilizon_reshare.publishers.abstract import AbstractPublisher
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from mobilizon_reshare.publishers.exceptions import (
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InvalidBot,
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InvalidCredentials,
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InvalidEvent,
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InvalidResponse,
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)
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class TelegramPublisher(AbstractPublisher):
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"""
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Telegram publisher class.
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"""
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_conf = ("publisher", "telegram")
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default_template_path = pkg_resources.resource_filename(
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"mobilizon_reshare.publishers.templates", "telegram.tmpl.j2"
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)
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def _escape_message(self, message: str) -> str:
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return (
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message.replace("-", "\\-")
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.replace(".", "\\.")
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.replace("(", "\\(")
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.replace(")", "\\)")
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)
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def _send(self, message: str) -> Response:
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return requests.post(
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url=f"https://api.telegram.org/bot{self.conf.token}/sendMessage",
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json={
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"chat_id": self.conf.chat_id,
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"text": self._escape_message(message),
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"parse_mode": "markdownv2",
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},
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)
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def validate_credentials(self):
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conf = self.conf
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chat_id = conf.chat_id
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token = conf.token
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username = conf.username
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err = []
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if not chat_id:
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err.append("chat ID")
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if not token:
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err.append("token")
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if not username:
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err.append("username")
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if err:
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self._log_error(
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", ".join(err) + " is/are missing",
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raise_error=InvalidCredentials,
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)
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res = requests.get(f"https://api.telegram.org/bot{token}/getMe")
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data = self._validate_response(res)
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if not username == data.get("result", {}).get("username"):
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self._log_error(
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"Found a different bot than the expected one",
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raise_error=InvalidBot,
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)
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def validate_event(self) -> None:
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text = self.event.description
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if not (text and text.strip()):
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self._log_error("No text was found", raise_error=InvalidEvent)
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def _validate_response(self, res):
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try:
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res.raise_for_status()
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except requests.exceptions.HTTPError as e:
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self._log_error(
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f"Server returned invalid data: {str(e)}",
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raise_error=InvalidResponse,
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)
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try:
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data = res.json()
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except Exception as e:
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self._log_error(
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f"Server returned invalid json data: {str(e)}",
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raise_error=InvalidResponse,
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)
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if not data.get("ok"):
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self._log_error(
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f"Invalid request (response: {data})",
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raise_error=InvalidResponse,
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)
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return data
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def validate_message(self) -> None:
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# TODO implement
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pass
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def _preprocess_event(self):
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self.event.description = html_to_markdown(self.event.description)
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self.event.name = html_to_markdown(self.event.name)
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