forked from platypush/platypush
47 lines
1.3 KiB
Python
47 lines
1.3 KiB
Python
from threading import RLock
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from typing import Optional
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from platypush.config import Config
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from platypush.context import get_backend, get_plugin
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_app_tunnel_lock = RLock()
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_app_tunnel_url: Optional[str] = None
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def _get_http_port() -> int:
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http = None
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if Config.get('backend.http'):
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http = get_backend('http')
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assert http, 'The http backend is required in order to subscribe to notifications'
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return http.port
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def get_or_create_ngrok_tunnel() -> str:
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"""
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This method creates an ngrok tunnel for the local web application,
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useful to register public HTTPS callback URLs on the fly from plugins
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and backends.
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"""
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global _app_tunnel_url
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with _app_tunnel_lock:
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if _app_tunnel_url:
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return _app_tunnel_url
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local_port = _get_http_port()
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ngrok = None
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if Config.get('ngrok'):
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ngrok = get_plugin('ngrok')
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assert ngrok, 'The ngrok plugin is required in order to subscribe to notifications'
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tunnel_response = ngrok.create_tunnel(
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resource=local_port,
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protocol='http',
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bind_tls=True,
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).output
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_app_tunnel_url = tunnel_response.get('url')
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assert _app_tunnel_url, 'Unable to create an ngrok tunnel'
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return _app_tunnel_url
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