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comparison planemo/lib/python3.7/site-packages/urllib3/util/response.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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0:d30785e31577 1:56ad4e20f292
1 from __future__ import absolute_import
2 from ..packages.six.moves import http_client as httplib
3
4 from ..exceptions import HeaderParsingError
5
6
7 def is_fp_closed(obj):
8 """
9 Checks whether a given file-like object is closed.
10
11 :param obj:
12 The file-like object to check.
13 """
14
15 try:
16 # Check `isclosed()` first, in case Python3 doesn't set `closed`.
17 # GH Issue #928
18 return obj.isclosed()
19 except AttributeError:
20 pass
21
22 try:
23 # Check via the official file-like-object way.
24 return obj.closed
25 except AttributeError:
26 pass
27
28 try:
29 # Check if the object is a container for another file-like object that
30 # gets released on exhaustion (e.g. HTTPResponse).
31 return obj.fp is None
32 except AttributeError:
33 pass
34
35 raise ValueError("Unable to determine whether fp is closed.")
36
37
38 def assert_header_parsing(headers):
39 """
40 Asserts whether all headers have been successfully parsed.
41 Extracts encountered errors from the result of parsing headers.
42
43 Only works on Python 3.
44
45 :param headers: Headers to verify.
46 :type headers: `httplib.HTTPMessage`.
47
48 :raises urllib3.exceptions.HeaderParsingError:
49 If parsing errors are found.
50 """
51
52 # This will fail silently if we pass in the wrong kind of parameter.
53 # To make debugging easier add an explicit check.
54 if not isinstance(headers, httplib.HTTPMessage):
55 raise TypeError("expected httplib.Message, got {0}.".format(type(headers)))
56
57 defects = getattr(headers, "defects", None)
58 get_payload = getattr(headers, "get_payload", None)
59
60 unparsed_data = None
61 if get_payload:
62 # get_payload is actually email.message.Message.get_payload;
63 # we're only interested in the result if it's not a multipart message
64 if not headers.is_multipart():
65 payload = get_payload()
66
67 if isinstance(payload, (bytes, str)):
68 unparsed_data = payload
69
70 if defects or unparsed_data:
71 raise HeaderParsingError(defects=defects, unparsed_data=unparsed_data)
72
73
74 def is_response_to_head(response):
75 """
76 Checks whether the request of a response has been a HEAD-request.
77 Handles the quirks of AppEngine.
78
79 :param conn:
80 :type conn: :class:`httplib.HTTPResponse`
81 """
82 # FIXME: Can we do this somehow without accessing private httplib _method?
83 method = response._method
84 if isinstance(method, int): # Platform-specific: Appengine
85 return method == 3
86 return method.upper() == "HEAD"