nvchecker/nvchecker_source/regex.py

50 lines
No EOL
1.3 KiB
Python

# MIT licensed
# Copyright (c) 2013-2020 lilydjwg <lilydjwg@gmail.com>, et al.
import re
import sre_constants
from nvchecker.api import (
VersionResult, Entry, KeyManager,
TemporaryError, session, GetVersionError
)
async def get_version(name, conf, **kwargs):
try:
return await get_version_real(name, conf, **kwargs)
except TemporaryError as e:
check_ratelimit(e, name)
async def get_version_real(
name: str, conf: Entry, *, keymanager: KeyManager,
**kwargs,
) -> VersionResult:
# Load token from config
token = conf.get('token')
# Load token from keyman
if token is None:
key_name = 'regex_' + name
token = keymanager.get_key(key_name)
# Set private token if token exists.
headers = {}
if token:
headers["Authorization"] = token
try:
regex = re.compile(conf['regex'])
except sre_constants.error as e:
raise GetVersionError('bad regex', exc_info=e)
encoding = conf.get('encoding', 'latin1')
res = await session.get(conf.get('url'), headers=headers)
body = res.body.decode(encoding)
try:
version = regex.findall(body)
except ValueError:
if not conf.get('missing_ok', False):
raise GetVersionError('version string not found.')
return version