You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
76 lines
2.0 KiB
76 lines
2.0 KiB
4 years ago
|
# -*- coding: utf-8 -*-
|
||
|
|
|
||
|
|
from functools import lru_cache
|
||
|
|
import logging
|
||
|
|
import socket
|
||
|
|
|
||
|
|
__author__ = 'Artur Barseghyan'
|
||
|
|
__copyright__ = '2013-2020 Artur Barseghyan'
|
||
|
|
__license__ = 'MPL-1.1 OR GPL-2.0-only OR LGPL-2.1-or-later'
|
||
|
|
__all__ = (
|
||
|
|
'internet_available_only',
|
||
|
|
'log_info',
|
||
|
|
)
|
||
|
|
|
||
|
|
LOG_INFO = True
|
||
|
|
LOGGER = logging.getLogger(__name__)
|
||
|
|
|
||
|
|
|
||
|
|
def log_info(func):
|
||
|
|
"""Log some useful info."""
|
||
|
|
if not LOG_INFO:
|
||
|
|
return func
|
||
|
|
|
||
|
|
def inner(self, *args, **kwargs):
|
||
|
|
"""Inner."""
|
||
|
|
result = func(self, *args, **kwargs)
|
||
|
|
|
||
|
|
LOGGER.debug('\n\n%s', func.__name__)
|
||
|
|
LOGGER.debug('============================')
|
||
|
|
if func.__doc__:
|
||
|
|
LOGGER.debug('""" %s """', func.__doc__.strip())
|
||
|
|
LOGGER.debug('----------------------------')
|
||
|
|
if result is not None:
|
||
|
|
LOGGER.debug(result)
|
||
|
|
LOGGER.debug('\n++++++++++++++++++++++++++++')
|
||
|
|
|
||
|
|
return result
|
||
|
|
return inner
|
||
|
|
|
||
|
|
|
||
|
|
@lru_cache(maxsize=32)
|
||
|
|
def is_internet_available(host="8.8.8.8", port=53, timeout=3):
|
||
|
|
"""Check if internet is available.
|
||
|
|
|
||
|
|
Host: 8.8.8.8 (google-public-dns-a.google.com)
|
||
|
|
OpenPort: 53/tcp
|
||
|
|
Service: domain (DNS/TCP)
|
||
|
|
"""
|
||
|
|
try:
|
||
|
|
socket.setdefaulttimeout(timeout)
|
||
|
|
socket.socket(socket.AF_INET, socket.SOCK_STREAM).connect((host, port))
|
||
|
|
return True
|
||
|
|
except socket.error as ex:
|
||
|
|
print(ex)
|
||
|
|
return False
|
||
|
|
|
||
|
|
|
||
|
|
def internet_available_only(func):
|
||
|
|
|
||
|
|
def inner(self, *args, **kwargs):
|
||
|
|
"""Inner."""
|
||
|
|
if not is_internet_available():
|
||
|
|
LOGGER.debug('\n\n%s', func.__name__)
|
||
|
|
LOGGER.debug('============================')
|
||
|
|
if func.__doc__:
|
||
|
|
LOGGER.debug('""" %s """', func.__doc__.strip())
|
||
|
|
LOGGER.debug('----------------------------')
|
||
|
|
LOGGER.debug("Skipping because no Internet connection available.")
|
||
|
|
LOGGER.debug('\n++++++++++++++++++++++++++++')
|
||
|
|
return None
|
||
|
|
|
||
|
|
result = func(self, *args, **kwargs)
|
||
|
|
return result
|
||
|
|
|
||
|
|
return inner
|