#!/usr/bin/env python3
import requests
import random
import string
import pprint
registry_url = "docker-registry.wikimedia.org"
def randstr():
return ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(5))
def _request(url_part, bust_cache=False):
headers = {}
headers["Accept"] = "application/vnd.docker.distribution.manifest.v2+json"
url = "https://{}{}".format(registry_url, url_part)
if bust_cache:
url += "?cache={}".format(randstr())
response = requests.request("GET", url, headers=headers, stream=True)
response.raise_for_status()
return response
def compare_content_length(bust_cache=False):
r = _request(url, bust_cache)
try:
expected = int(r.headers["content-length"])
except KeyError:
print("ERROR: {} no content-length header".format(r.url))
pprint.pprint(r.headers, width=1)
return
got = len(r.raw.data)
if expected != got:
print("ERROR: {} expected: {} got: {} ".format(img, expected, got))
pprint.pprint(r.headers, width=1)
img = ["/v2/releng/node10-test-browser/manifests/latest", ]
for url in img:
compare_content_length()
compare_content_length(bust_cache=True)