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