663 lines
22 KiB
Python
663 lines
22 KiB
Python
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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import shlex
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import shutil
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import socket
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import struct
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import subprocess
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import sys
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import itertools
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import xml.etree.ElementTree
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try:
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import urllib.request as compat_urllib_request
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except ImportError: # Python 2
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import urllib2 as compat_urllib_request
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try:
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import urllib.error as compat_urllib_error
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except ImportError: # Python 2
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import urllib2 as compat_urllib_error
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try:
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import urllib.parse as compat_urllib_parse
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except ImportError: # Python 2
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import urllib as compat_urllib_parse
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try:
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from urllib.parse import urlparse as compat_urllib_parse_urlparse
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except ImportError: # Python 2
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from urlparse import urlparse as compat_urllib_parse_urlparse
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try:
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import urllib.parse as compat_urlparse
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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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import cookielib as compat_cookiejar
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try:
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import http.cookies as compat_cookies
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except ImportError: # Python 2
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import Cookie as compat_cookies
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try:
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import html.entities as compat_html_entities
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except ImportError: # Python 2
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import htmlentitydefs as compat_html_entities
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try:
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import http.client as compat_http_client
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except ImportError: # Python 2
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import httplib as compat_http_client
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try:
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from urllib.error import HTTPError as compat_HTTPError
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except ImportError: # Python 2
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from urllib2 import HTTPError as compat_HTTPError
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try:
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from urllib.request import urlretrieve as compat_urlretrieve
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except ImportError: # Python 2
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from urllib import urlretrieve as compat_urlretrieve
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try:
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from html.parser import HTMLParser as compat_HTMLParser
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except ImportError: # Python 2
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from HTMLParser import HTMLParser as compat_HTMLParser
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try:
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from subprocess import DEVNULL
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compat_subprocess_get_DEVNULL = lambda: DEVNULL
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except ImportError:
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compat_subprocess_get_DEVNULL = lambda: open(os.path.devnull, 'w')
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try:
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import http.server as compat_http_server
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except ImportError:
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import BaseHTTPServer as compat_http_server
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try:
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compat_str = unicode # Python 2
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except NameError:
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compat_str = str
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try:
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from urllib.parse import unquote_to_bytes as compat_urllib_parse_unquote_to_bytes
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from urllib.parse import unquote as compat_urllib_parse_unquote
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from urllib.parse import unquote_plus as compat_urllib_parse_unquote_plus
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except ImportError: # Python 2
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_asciire = (compat_urllib_parse._asciire if hasattr(compat_urllib_parse, '_asciire')
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else re.compile('([\x00-\x7f]+)'))
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# HACK: The following are the correct unquote_to_bytes, unquote and unquote_plus
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# implementations from cpython 3.4.3's stdlib. Python 2's version
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# is apparently broken (see https://github.com/rg3/youtube-dl/pull/6244)
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def compat_urllib_parse_unquote_to_bytes(string):
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"""unquote_to_bytes('abc%20def') -> b'abc def'."""
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# Note: strings are encoded as UTF-8. This is only an issue if it contains
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# unescaped non-ASCII characters, which URIs should not.
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if not string:
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# Is it a string-like object?
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string.split
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return b''
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if isinstance(string, compat_str):
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string = string.encode('utf-8')
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bits = string.split(b'%')
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if len(bits) == 1:
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return string
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res = [bits[0]]
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append = res.append
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for item in bits[1:]:
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try:
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append(compat_urllib_parse._hextochr[item[:2]])
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append(item[2:])
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except KeyError:
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append(b'%')
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append(item)
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return b''.join(res)
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def compat_urllib_parse_unquote(string, encoding='utf-8', errors='replace'):
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"""Replace %xx escapes by their single-character equivalent. The optional
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encoding and errors parameters specify how to decode percent-encoded
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sequences into Unicode characters, as accepted by the bytes.decode()
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method.
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By default, percent-encoded sequences are decoded with UTF-8, and invalid
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sequences are replaced by a placeholder character.
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unquote('abc%20def') -> 'abc def'.
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"""
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if '%' not in string:
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string.split
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return string
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if encoding is None:
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encoding = 'utf-8'
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if errors is None:
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errors = 'replace'
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bits = _asciire.split(string)
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res = [bits[0]]
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append = res.append
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for i in range(1, len(bits), 2):
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append(compat_urllib_parse_unquote_to_bytes(bits[i]).decode(encoding, errors))
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append(bits[i + 1])
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return ''.join(res)
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def compat_urllib_parse_unquote_plus(string, encoding='utf-8', errors='replace'):
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"""Like unquote(), but also replace plus signs by spaces, as required for
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unquoting HTML form values.
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unquote_plus('%7e/abc+def') -> '~/abc def'
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"""
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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.parse import urlencode as compat_urllib_parse_urlencode
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except ImportError: # Python 2
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# Python 2 will choke in urlencode on mixture of byte and unicode strings.
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# Possible solutions are to either port it from python 3 with all
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# the friends or manually ensure input query contains only byte strings.
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# We will stick with latter thus recursively encoding the whole query.
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def compat_urllib_parse_urlencode(query, doseq=0, encoding='utf-8'):
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def encode_elem(e):
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if isinstance(e, dict):
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e = encode_dict(e)
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elif isinstance(e, (list, tuple,)):
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list_e = encode_list(e)
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e = tuple(list_e) if isinstance(e, tuple) else list_e
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elif isinstance(e, compat_str):
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e = e.encode(encoding)
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return e
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def encode_dict(d):
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return dict((encode_elem(k), encode_elem(v)) for k, v in d.items())
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def encode_list(l):
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return [encode_elem(e) for e in l]
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return compat_urllib_parse.urlencode(encode_elem(query), doseq=doseq)
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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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compat_basestring = str
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try:
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compat_chr = unichr # Python 2
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except NameError:
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compat_chr = chr
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try:
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from xml.etree.ElementTree import ParseError as compat_xml_parse_error
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except ImportError: # Python 2.6
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from xml.parsers.expat import ExpatError as compat_xml_parse_error
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etree = xml.etree.ElementTree
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class _TreeBuilder(etree.TreeBuilder):
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def doctype(self, name, pubid, system):
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pass
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if sys.version_info[0] >= 3:
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def compat_etree_fromstring(text):
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return etree.XML(text, parser=etree.XMLParser(target=_TreeBuilder()))
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else:
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# python 2.x tries to encode unicode strings with ascii (see the
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# XMLParser._fixtext method)
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try:
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_etree_iter = etree.Element.iter
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except AttributeError: # Python <=2.6
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def _etree_iter(root):
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for el in root.findall('*'):
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yield el
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for sub in _etree_iter(el):
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yield sub
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# on 2.6 XML doesn't have a parser argument, function copied from CPython
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# 2.7 source
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def _XML(text, parser=None):
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if not parser:
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parser = etree.XMLParser(target=_TreeBuilder())
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parser.feed(text)
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return parser.close()
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def _element_factory(*args, **kwargs):
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el = etree.Element(*args, **kwargs)
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for k, v in el.items():
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if isinstance(v, bytes):
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el.set(k, v.decode('utf-8'))
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return el
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def compat_etree_fromstring(text):
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doc = _XML(text, parser=etree.XMLParser(target=_TreeBuilder(element_factory=_element_factory)))
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for el in _etree_iter(doc):
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if el.text is not None and isinstance(el.text, bytes):
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el.text = el.text.decode('utf-8')
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return doc
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if sys.version_info < (2, 7):
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# Here comes the crazy part: In 2.6, if the xpath is a unicode,
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# .//node does not match if a node is a direct child of . !
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def compat_xpath(xpath):
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if isinstance(xpath, compat_str):
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xpath = xpath.encode('ascii')
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return xpath
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else:
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compat_xpath = lambda xpath: xpath
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try:
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from urllib.parse import parse_qs as compat_parse_qs
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except ImportError: # Python 2
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# HACK: The following is the correct parse_qs implementation from cpython 3's stdlib.
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# Python 2's version is apparently totally broken
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def _parse_qsl(qs, keep_blank_values=False, strict_parsing=False,
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encoding='utf-8', errors='replace'):
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qs, _coerce_result = qs, compat_str
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pairs = [s2 for s1 in qs.split('&') for s2 in s1.split(';')]
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r = []
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for name_value in pairs:
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if not name_value and not strict_parsing:
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continue
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nv = name_value.split('=', 1)
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if len(nv) != 2:
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if strict_parsing:
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raise ValueError('bad query field: %r' % (name_value,))
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# Handle case of a control-name with no equal sign
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if keep_blank_values:
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nv.append('')
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else:
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continue
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if len(nv[1]) or keep_blank_values:
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name = nv[0].replace('+', ' ')
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name = compat_urllib_parse_unquote(
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name, encoding=encoding, errors=errors)
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name = _coerce_result(name)
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value = nv[1].replace('+', ' ')
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value = compat_urllib_parse_unquote(
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value, encoding=encoding, errors=errors)
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value = _coerce_result(value)
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r.append((name, value))
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return r
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def compat_parse_qs(qs, keep_blank_values=False, strict_parsing=False,
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encoding='utf-8', errors='replace'):
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parsed_result = {}
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pairs = _parse_qsl(qs, keep_blank_values, strict_parsing,
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encoding=encoding, errors=errors)
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for name, value in pairs:
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if name in parsed_result:
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parsed_result[name].append(value)
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else:
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parsed_result[name] = [value]
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return parsed_result
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try:
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from shlex import quote as compat_shlex_quote
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except ImportError: # Python < 3.3
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def compat_shlex_quote(s):
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if re.match(r'^[-_\w./]+$', s):
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return s
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else:
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return "'" + s.replace("'", "'\"'\"'") + "'"
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if sys.version_info >= (2, 7, 3):
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compat_shlex_split = shlex.split
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else:
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# Working around shlex issue with unicode strings on some python 2
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# versions (see http://bugs.python.org/issue1548891)
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def compat_shlex_split(s, comments=False, posix=True):
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if isinstance(s, compat_str):
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s = s.encode('utf-8')
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return shlex.split(s, comments, posix)
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def compat_ord(c):
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if type(c) is int:
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return c
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else:
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return ord(c)
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compat_os_name = os._name if os.name == 'java' else os.name
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if sys.version_info >= (3, 0):
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compat_getenv = os.getenv
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compat_expanduser = os.path.expanduser
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def compat_setenv(key, value, env=os.environ):
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env[key] = value
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else:
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# Environment variables should be decoded with filesystem encoding.
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# Otherwise it will fail if any non-ASCII characters present (see #3854 #3217 #2918)
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def compat_getenv(key, default=None):
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from .utils import get_filesystem_encoding
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env = os.getenv(key, default)
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if env:
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env = env.decode(get_filesystem_encoding())
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return env
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def compat_setenv(key, value, env=os.environ):
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def encode(v):
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from .utils import get_filesystem_encoding
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return v.encode(get_filesystem_encoding()) if isinstance(v, compat_str) else v
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env[encode(key)] = encode(value)
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# HACK: The default implementations of os.path.expanduser from cpython do not decode
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# environment variables with filesystem encoding. We will work around this by
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# providing adjusted implementations.
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# The following are os.path.expanduser implementations from cpython 2.7.8 stdlib
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# for different platforms with correct environment variables decoding.
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if compat_os_name == 'posix':
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def compat_expanduser(path):
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"""Expand ~ and ~user constructions. If user or $HOME is unknown,
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do nothing."""
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if not path.startswith('~'):
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return path
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i = path.find('/', 1)
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if i < 0:
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i = len(path)
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if i == 1:
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if 'HOME' not in os.environ:
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import pwd
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userhome = pwd.getpwuid(os.getuid()).pw_dir
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else:
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userhome = compat_getenv('HOME')
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else:
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import pwd
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try:
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pwent = pwd.getpwnam(path[1:i])
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except KeyError:
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return path
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userhome = pwent.pw_dir
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userhome = userhome.rstrip('/')
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return (userhome + path[i:]) or '/'
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elif compat_os_name == 'nt' or compat_os_name == 'ce':
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def compat_expanduser(path):
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"""Expand ~ and ~user constructs.
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If user or $HOME is unknown, do nothing."""
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if path[:1] != '~':
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return path
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i, n = 1, len(path)
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while i < n and path[i] not in '/\\':
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i = i + 1
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if 'HOME' in os.environ:
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userhome = compat_getenv('HOME')
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elif 'USERPROFILE' in os.environ:
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userhome = compat_getenv('USERPROFILE')
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elif 'HOMEPATH' not in os.environ:
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return path
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else:
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try:
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drive = compat_getenv('HOMEDRIVE')
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except KeyError:
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drive = ''
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userhome = os.path.join(drive, compat_getenv('HOMEPATH'))
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if i != 1: # ~user
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userhome = os.path.join(os.path.dirname(userhome), path[1:i])
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return userhome + path[i:]
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else:
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compat_expanduser = os.path.expanduser
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if sys.version_info < (3, 0):
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def compat_print(s):
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from .utils import preferredencoding
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print(s.encode(preferredencoding(), 'xmlcharrefreplace'))
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else:
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def compat_print(s):
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assert isinstance(s, compat_str)
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print(s)
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if sys.version_info < (3, 0) and sys.platform == 'win32':
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def compat_getpass(prompt, *args, **kwargs):
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if isinstance(prompt, compat_str):
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from .utils import preferredencoding
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prompt = prompt.encode(preferredencoding())
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return getpass.getpass(prompt, *args, **kwargs)
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else:
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compat_getpass = getpass.getpass
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try:
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compat_input = raw_input
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except NameError: # Python 3
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compat_input = input
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|
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# Python < 2.6.5 require kwargs to be bytes
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try:
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def _testfunc(x):
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pass
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_testfunc(**{'x': 0})
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except TypeError:
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def compat_kwargs(kwargs):
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return dict((bytes(k), v) for k, v in kwargs.items())
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else:
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compat_kwargs = lambda kwargs: kwargs
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|
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if sys.version_info < (2, 7):
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def compat_socket_create_connection(address, timeout, source_address=None):
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host, port = address
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err = None
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for res in socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM):
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af, socktype, proto, canonname, sa = res
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sock = None
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try:
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sock = socket.socket(af, socktype, proto)
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sock.settimeout(timeout)
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if source_address:
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sock.bind(source_address)
|
|
sock.connect(sa)
|
|
return sock
|
|
except socket.error as _:
|
|
err = _
|
|
if sock is not None:
|
|
sock.close()
|
|
if err is not None:
|
|
raise err
|
|
else:
|
|
raise socket.error('getaddrinfo returns an empty list')
|
|
else:
|
|
compat_socket_create_connection = socket.create_connection
|
|
|
|
|
|
# Fix https://github.com/rg3/youtube-dl/issues/4223
|
|
# See http://bugs.python.org/issue9161 for what is broken
|
|
def workaround_optparse_bug9161():
|
|
op = optparse.OptionParser()
|
|
og = optparse.OptionGroup(op, 'foo')
|
|
try:
|
|
og.add_option('-t')
|
|
except TypeError:
|
|
real_add_option = optparse.OptionGroup.add_option
|
|
|
|
def _compat_add_option(self, *args, **kwargs):
|
|
enc = lambda v: (
|
|
v.encode('ascii', 'replace') if isinstance(v, compat_str)
|
|
else v)
|
|
bargs = [enc(a) for a in args]
|
|
bkwargs = dict(
|
|
(k, enc(v)) for k, v in kwargs.items())
|
|
return real_add_option(self, *bargs, **bkwargs)
|
|
optparse.OptionGroup.add_option = _compat_add_option
|
|
|
|
if hasattr(shutil, 'get_terminal_size'): # Python >= 3.3
|
|
compat_get_terminal_size = shutil.get_terminal_size
|
|
else:
|
|
_terminal_size = collections.namedtuple('terminal_size', ['columns', 'lines'])
|
|
|
|
def compat_get_terminal_size(fallback=(80, 24)):
|
|
columns = compat_getenv('COLUMNS')
|
|
if columns:
|
|
columns = int(columns)
|
|
else:
|
|
columns = None
|
|
lines = compat_getenv('LINES')
|
|
if lines:
|
|
lines = int(lines)
|
|
else:
|
|
lines = None
|
|
|
|
if columns is None or lines is None or columns <= 0 or lines <= 0:
|
|
try:
|
|
sp = subprocess.Popen(
|
|
['stty', 'size'],
|
|
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
out, err = sp.communicate()
|
|
_lines, _columns = map(int, out.split())
|
|
except Exception:
|
|
_columns, _lines = _terminal_size(*fallback)
|
|
|
|
if columns is None or columns <= 0:
|
|
columns = _columns
|
|
if lines is None or lines <= 0:
|
|
lines = _lines
|
|
return _terminal_size(columns, lines)
|
|
|
|
try:
|
|
itertools.count(start=0, step=1)
|
|
compat_itertools_count = itertools.count
|
|
except TypeError: # Python 2.6
|
|
def compat_itertools_count(start=0, step=1):
|
|
n = start
|
|
while True:
|
|
yield n
|
|
n += step
|
|
|
|
if sys.version_info >= (3, 0):
|
|
from tokenize import tokenize as compat_tokenize_tokenize
|
|
else:
|
|
from tokenize import generate_tokens as compat_tokenize_tokenize
|
|
|
|
|
|
try:
|
|
struct.pack('!I', 0)
|
|
except TypeError:
|
|
# In Python 2.6 and 2.7.x < 2.7.7, struct requires a bytes argument
|
|
# See https://bugs.python.org/issue19099
|
|
def compat_struct_pack(spec, *args):
|
|
if isinstance(spec, compat_str):
|
|
spec = spec.encode('ascii')
|
|
return struct.pack(spec, *args)
|
|
|
|
def compat_struct_unpack(spec, *args):
|
|
if isinstance(spec, compat_str):
|
|
spec = spec.encode('ascii')
|
|
return struct.unpack(spec, *args)
|
|
else:
|
|
compat_struct_pack = struct.pack
|
|
compat_struct_unpack = struct.unpack
|
|
|
|
|
|
__all__ = [
|
|
'compat_HTMLParser',
|
|
'compat_HTTPError',
|
|
'compat_basestring',
|
|
'compat_chr',
|
|
'compat_cookiejar',
|
|
'compat_cookies',
|
|
'compat_etree_fromstring',
|
|
'compat_expanduser',
|
|
'compat_get_terminal_size',
|
|
'compat_getenv',
|
|
'compat_getpass',
|
|
'compat_html_entities',
|
|
'compat_http_client',
|
|
'compat_http_server',
|
|
'compat_input',
|
|
'compat_itertools_count',
|
|
'compat_kwargs',
|
|
'compat_ord',
|
|
'compat_os_name',
|
|
'compat_parse_qs',
|
|
'compat_print',
|
|
'compat_setenv',
|
|
'compat_shlex_quote',
|
|
'compat_shlex_split',
|
|
'compat_socket_create_connection',
|
|
'compat_str',
|
|
'compat_struct_pack',
|
|
'compat_struct_unpack',
|
|
'compat_subprocess_get_DEVNULL',
|
|
'compat_tokenize_tokenize',
|
|
'compat_urllib_error',
|
|
'compat_urllib_parse',
|
|
'compat_urllib_parse_unquote',
|
|
'compat_urllib_parse_unquote_plus',
|
|
'compat_urllib_parse_unquote_to_bytes',
|
|
'compat_urllib_parse_urlencode',
|
|
'compat_urllib_parse_urlparse',
|
|
'compat_urllib_request',
|
|
'compat_urllib_request_DataHandler',
|
|
'compat_urllib_response',
|
|
'compat_urlparse',
|
|
'compat_urlretrieve',
|
|
'compat_xml_parse_error',
|
|
'compat_xpath',
|
|
'workaround_optparse_bug9161',
|
|
]
|