nvchecker/nvchecker/source/regex.py
2017-07-06 12:24:45 +08:00

39 lines
1.1 KiB
Python

# MIT licensed
# Copyright (c) 2013-2017 lilydjwg <lilydjwg@gmail.com>, et al.
import re
import sre_constants
import logging
from . import session
from ..sortversion import sort_version_keys
logger = logging.getLogger(__name__)
async def get_version(name, conf):
try:
regex = re.compile(conf['regex'])
except sre_constants.error:
logger.warn('%s: bad regex, skipped.', name, exc_info=True)
return name, None
encoding = conf.get('encoding', 'latin1')
kwargs = {}
headers = {}
if conf.get('proxy'):
kwargs["proxy"] = conf.get("proxy")
if conf.get('user_agent'):
headers['User-Agent'] = conf['user_agent']
sort_version_key = sort_version_keys[conf.get("sort_version_key", "parse_version")]
async with session.get(conf['url'], headers=headers, **kwargs) as res:
version = None
try:
body = (await res.read()).decode(encoding)
try:
version = max(regex.findall(body), key=sort_version_key)
except ValueError:
logger.error('%s: version string not found.', name)
finally:
return name, version