mirror of
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137 lines
3.3 KiB
Python
137 lines
3.3 KiB
Python
from __future__ import division
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import json
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import mimetypes
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import time
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from collections import OrderedDict
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from http.cookiejar import parse_ns_headers
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from pprint import pformat
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from typing import List, Optional, Tuple
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import requests.auth
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def load_json_preserve_order(s):
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return json.loads(s, object_pairs_hook=OrderedDict)
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def repr_dict(d: dict) -> str:
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return pformat(d)
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def humanize_bytes(n, precision=2):
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# Author: Doug Latornell
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# Licence: MIT
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# URL: https://code.activestate.com/recipes/577081/
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"""Return a humanized string representation of a number of bytes.
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Assumes `from __future__ import division`.
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>>> humanize_bytes(1)
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'1 B'
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>>> humanize_bytes(1024, precision=1)
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'1.0 kB'
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>>> humanize_bytes(1024 * 123, precision=1)
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'123.0 kB'
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>>> humanize_bytes(1024 * 12342, precision=1)
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'12.1 MB'
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>>> humanize_bytes(1024 * 12342, precision=2)
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'12.05 MB'
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>>> humanize_bytes(1024 * 1234, precision=2)
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'1.21 MB'
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>>> humanize_bytes(1024 * 1234 * 1111, precision=2)
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'1.31 GB'
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>>> humanize_bytes(1024 * 1234 * 1111, precision=1)
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'1.3 GB'
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"""
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abbrevs = [
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(1 << 50, 'PB'),
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(1 << 40, 'TB'),
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(1 << 30, 'GB'),
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(1 << 20, 'MB'),
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(1 << 10, 'kB'),
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(1, 'B')
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]
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if n == 1:
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return '1 B'
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for factor, suffix in abbrevs:
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if n >= factor:
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break
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# noinspection PyUnboundLocalVariable
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return '%.*f %s' % (precision, n / factor, suffix)
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class ExplicitNullAuth(requests.auth.AuthBase):
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"""Forces requests to ignore the ``.netrc``.
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<https://github.com/psf/requests/issues/2773#issuecomment-174312831>
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"""
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def __call__(self, r):
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return r
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def get_content_type(filename):
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"""
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Return the content type for ``filename`` in format appropriate
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for Content-Type headers, or ``None`` if the file type is unknown
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to ``mimetypes``.
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"""
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mime, encoding = mimetypes.guess_type(filename, strict=False)
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if mime:
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content_type = mime
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if encoding:
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content_type = '%s; charset=%s' % (mime, encoding)
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return content_type
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def get_expired_cookies(
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headers: List[Tuple[str, str]],
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now: float = None
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) -> List[dict]:
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now = now or time.time()
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def is_expired(expires: Optional[float]) -> bool:
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return expires is not None and expires <= now
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attr_sets: List[Tuple[str, str]] = parse_ns_headers(
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value for name, value in headers
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if name.lower() == 'set-cookie'
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)
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cookies = [
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# The first attr name is the cookie name.
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dict(attrs[1:], name=attrs[0][0])
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for attrs in attr_sets
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]
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_max_age_to_expires(cookies=cookies, now=now)
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return [
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{
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'name': cookie['name'],
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'path': cookie.get('path', '/')
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}
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for cookie in cookies
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if is_expired(expires=cookie.get('expires'))
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]
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def _max_age_to_expires(cookies, now):
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"""
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Translate `max-age` into `expires` for Requests to take it into account.
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HACK/FIXME: <https://github.com/psf/requests/issues/5743>
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"""
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for cookie in cookies:
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if 'expires' in cookie:
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continue
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max_age = cookie.get('max-age')
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if max_age and max_age.isdigit():
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cookie['expires'] = now + float(max_age)
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