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npm: Fetch only first 1KB

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The result is still large even after specifying
"Accept: application/vnd.npm.install-v1+json". Since the content we need
are always at the beginning of the response, let's make it more violent.
This commit is contained in:
Felix Yan 2020-09-23 20:04:02 +08:00
parent 07951bd745
commit 71a63f90f6
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GPG Key ID: 786C63F330D7CB92
1 changed files with 16 additions and 2 deletions
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18
nvchecker_source/npm.py
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@ -1,9 +1,23 @@
# MIT licensed
# Copyright (c) 2013-2020 lilydjwg <lilydjwg@gmail.com>, et al.
import json
import re
from nvchecker.api import session
NPM_URL = 'https://registry.npmjs.org/%s'
async def get_first_1k(url):
headers = {
"Accept": "application/vnd.npm.install-v1+json",
"Range": "bytes=0-1023",
}
res = await session.get(url, headers=headers)
return res.body
async def get_version(name, conf, *, cache, **kwargs):
key = conf.get('npm', name)
data = await cache.get_json(NPM_URL % key, headers={"Accept": "application/vnd.npm.install-v1+json"})
return data['dist-tags']['latest']
data = await cache.get(NPM_URL % key, get_first_1k)
dist_tags = json.loads(re.search(b'"dist-tags":({.*?})', data).group(1))
return dist_tags['latest']