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[compat] Add compat_urllib_request_DataHandler
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@ -1,7 +1,10 @@
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from __future__ import unicode_literals
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import binascii
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import collections
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import email
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import getpass
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import io
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import optparse
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import os
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import re
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@ -38,6 +41,11 @@ try:
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except ImportError: # Python 2
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import urlparse as compat_urlparse
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try:
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import urllib.response as compat_urllib_response
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except ImportError: # Python 2
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import urllib as compat_urllib_response
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try:
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import http.cookiejar as compat_cookiejar
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except ImportError: # Python 2
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@ -155,6 +163,40 @@ except ImportError: # Python 2
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string = string.replace('+', ' ')
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return compat_urllib_parse_unquote(string, encoding, errors)
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try:
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from urllib.request import DataHandler as compat_urllib_request_DataHandler
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except ImportError: # Python < 3.4
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# Ported from CPython 98774:1733b3bd46db, Lib/urllib/request.py
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class compat_urllib_request_DataHandler(compat_urllib_request.BaseHandler):
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def data_open(self, req):
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# data URLs as specified in RFC 2397.
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#
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# ignores POSTed data
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#
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# syntax:
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# dataurl := "data:" [ mediatype ] [ ";base64" ] "," data
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# mediatype := [ type "/" subtype ] *( ";" parameter )
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# data := *urlchar
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# parameter := attribute "=" value
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url = req.get_full_url()
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scheme, data = url.split(":", 1)
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mediatype, data = data.split(",", 1)
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# even base64 encoded data URLs might be quoted so unquote in any case:
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data = compat_urllib_parse_unquote_to_bytes(data)
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if mediatype.endswith(";base64"):
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data = binascii.a2b_base64(data)
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mediatype = mediatype[:-7]
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if not mediatype:
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mediatype = "text/plain;charset=US-ASCII"
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headers = email.message_from_string(
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"Content-type: %s\nContent-length: %d\n" % (mediatype, len(data)))
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return compat_urllib_response.addinfourl(io.BytesIO(data), headers, url)
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try:
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compat_basestring = basestring # Python 2
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except NameError:
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@ -489,6 +531,8 @@ __all__ = [
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'compat_urllib_parse_unquote_to_bytes',
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'compat_urllib_parse_urlparse',
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'compat_urllib_request',
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'compat_urllib_request_DataHandler',
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'compat_urllib_response',
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'compat_urlparse',
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'compat_urlretrieve',
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'compat_xml_parse_error',
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