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76 lines
2.0 KiB
76 lines
2.0 KiB
# -*- coding: utf-8 -*-
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from functools import lru_cache
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import logging
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import socket
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__author__ = 'Artur Barseghyan'
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__copyright__ = '2013-2020 Artur Barseghyan'
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__license__ = 'MPL-1.1 OR GPL-2.0-only OR LGPL-2.1-or-later'
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__all__ = (
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'internet_available_only',
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'log_info',
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)
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LOG_INFO = True
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LOGGER = logging.getLogger(__name__)
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def log_info(func):
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"""Log some useful info."""
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if not LOG_INFO:
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return func
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def inner(self, *args, **kwargs):
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"""Inner."""
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result = func(self, *args, **kwargs)
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LOGGER.debug('\n\n%s', func.__name__)
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LOGGER.debug('============================')
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if func.__doc__:
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LOGGER.debug('""" %s """', func.__doc__.strip())
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LOGGER.debug('----------------------------')
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if result is not None:
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LOGGER.debug(result)
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LOGGER.debug('\n++++++++++++++++++++++++++++')
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return result
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return inner
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@lru_cache(maxsize=32)
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def is_internet_available(host="8.8.8.8", port=53, timeout=3):
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"""Check if internet is available.
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Host: 8.8.8.8 (google-public-dns-a.google.com)
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OpenPort: 53/tcp
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Service: domain (DNS/TCP)
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"""
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try:
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socket.setdefaulttimeout(timeout)
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socket.socket(socket.AF_INET, socket.SOCK_STREAM).connect((host, port))
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return True
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except socket.error as ex:
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print(ex)
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return False
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def internet_available_only(func):
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def inner(self, *args, **kwargs):
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"""Inner."""
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if not is_internet_available():
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LOGGER.debug('\n\n%s', func.__name__)
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LOGGER.debug('============================')
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if func.__doc__:
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LOGGER.debug('""" %s """', func.__doc__.strip())
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LOGGER.debug('----------------------------')
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LOGGER.debug("Skipping because no Internet connection available.")
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LOGGER.debug('\n++++++++++++++++++++++++++++')
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return None
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result = func(self, *args, **kwargs)
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return result
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return inner
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