nvchecker/nvchecker_source/regex.py

37 lines
1.0 KiB
Python

# MIT licensed
# Copyright (c) 2013-2020 lilydjwg <lilydjwg@gmail.com>, et al.
import re
import sre_constants
from nvchecker.api import session, GetVersionError
async def get_version(name, conf, *, cache, **kwargs):
key = tuple(sorted(conf.items()))
return await cache.get(key, get_version_impl)
async def get_version_impl(info):
conf = dict(info)
try:
regex = re.compile(conf['regex'])
except sre_constants.error as e:
raise GetVersionError('bad regex', exc_info=e)
if regex.groups > 1:
raise GetVersionError('multi-group regex')
encoding = conf.get('encoding', 'latin1')
data = conf.get('post_data')
if data is None:
res = await session.get(conf['url'])
else:
res = await session.post(conf['url'], body = data, headers = {
'Content-Type': conf.get('post_data_type', 'application/x-www-form-urlencoded')
})
body = res.body.decode(encoding)
versions = regex.findall(body)
if not versions and not conf.get('missing_ok', False):
raise GetVersionError('version string not found.')
return versions