1 from __future__ import unicode_literals
17 import xml.etree.ElementTree
21 import urllib.request as compat_urllib_request
22 except ImportError: # Python 2
23 import urllib2 as compat_urllib_request
26 import urllib.error as compat_urllib_error
27 except ImportError: # Python 2
28 import urllib2 as compat_urllib_error
31 import urllib.parse as compat_urllib_parse
32 except ImportError: # Python 2
33 import urllib as compat_urllib_parse
36 from urllib.parse import urlparse as compat_urllib_parse_urlparse
37 except ImportError: # Python 2
38 from urlparse import urlparse as compat_urllib_parse_urlparse
41 import urllib.parse as compat_urlparse
42 except ImportError: # Python 2
43 import urlparse as compat_urlparse
46 import urllib.response as compat_urllib_response
47 except ImportError: # Python 2
48 import urllib as compat_urllib_response
51 import http.cookiejar as compat_cookiejar
52 except ImportError: # Python 2
53 import cookielib as compat_cookiejar
56 import http.cookies as compat_cookies
57 except ImportError: # Python 2
58 import Cookie as compat_cookies
61 import html.entities as compat_html_entities
62 except ImportError: # Python 2
63 import htmlentitydefs as compat_html_entities
66 import http.client as compat_http_client
67 except ImportError: # Python 2
68 import httplib as compat_http_client
71 from urllib.error import HTTPError as compat_HTTPError
72 except ImportError: # Python 2
73 from urllib2 import HTTPError as compat_HTTPError
76 from urllib.request import urlretrieve as compat_urlretrieve
77 except ImportError: # Python 2
78 from urllib import urlretrieve as compat_urlretrieve
82 from subprocess import DEVNULL
83 compat_subprocess_get_DEVNULL = lambda: DEVNULL
85 compat_subprocess_get_DEVNULL = lambda: open(os.path.devnull, 'w')
88 import http.server as compat_http_server
90 import BaseHTTPServer as compat_http_server
93 compat_str = unicode # Python 2
98 from urllib.parse import unquote_to_bytes as compat_urllib_parse_unquote_to_bytes
99 from urllib.parse import unquote as compat_urllib_parse_unquote
100 from urllib.parse import unquote_plus as compat_urllib_parse_unquote_plus
101 except ImportError: # Python 2
102 _asciire = (compat_urllib_parse._asciire if hasattr(compat_urllib_parse, '_asciire')
103 else re.compile('([\x00-\x7f]+)'))
105 # HACK: The following are the correct unquote_to_bytes, unquote and unquote_plus
106 # implementations from cpython 3.4.3's stdlib. Python 2's version
107 # is apparently broken (see https://github.com/rg3/youtube-dl/pull/6244)
109 def compat_urllib_parse_unquote_to_bytes(string):
110 """unquote_to_bytes('abc%20def') -> b'abc def'."""
111 # Note: strings are encoded as UTF-8. This is only an issue if it contains
112 # unescaped non-ASCII characters, which URIs should not.
114 # Is it a string-like object?
117 if isinstance(string, compat_str):
118 string = string.encode('utf-8')
119 bits = string.split(b'%')
124 for item in bits[1:]:
126 append(compat_urllib_parse._hextochr[item[:2]])
133 def compat_urllib_parse_unquote(string, encoding='utf-8', errors='replace'):
134 """Replace %xx escapes by their single-character equivalent. The optional
135 encoding and errors parameters specify how to decode percent-encoded
136 sequences into Unicode characters, as accepted by the bytes.decode()
138 By default, percent-encoded sequences are decoded with UTF-8, and invalid
139 sequences are replaced by a placeholder character.
141 unquote('abc%20def') -> 'abc def'.
143 if '%' not in string:
150 bits = _asciire.split(string)
153 for i in range(1, len(bits), 2):
154 append(compat_urllib_parse_unquote_to_bytes(bits[i]).decode(encoding, errors))
158 def compat_urllib_parse_unquote_plus(string, encoding='utf-8', errors='replace'):
159 """Like unquote(), but also replace plus signs by spaces, as required for
160 unquoting HTML form values.
162 unquote_plus('%7e/abc+def') -> '~/abc def'
164 string = string.replace('+', ' ')
165 return compat_urllib_parse_unquote(string, encoding, errors)
168 from urllib.request import DataHandler as compat_urllib_request_DataHandler
169 except ImportError: # Python < 3.4
170 # Ported from CPython 98774:1733b3bd46db, Lib/urllib/request.py
171 class compat_urllib_request_DataHandler(compat_urllib_request.BaseHandler):
172 def data_open(self, req):
173 # data URLs as specified in RFC 2397.
175 # ignores POSTed data
178 # dataurl := "data:" [ mediatype ] [ ";base64" ] "," data
179 # mediatype := [ type "/" subtype ] *( ";" parameter )
181 # parameter := attribute "=" value
182 url = req.get_full_url()
184 scheme, data = url.split(":", 1)
185 mediatype, data = data.split(",", 1)
187 # even base64 encoded data URLs might be quoted so unquote in any case:
188 data = compat_urllib_parse_unquote_to_bytes(data)
189 if mediatype.endswith(";base64"):
190 data = binascii.a2b_base64(data)
191 mediatype = mediatype[:-7]
194 mediatype = "text/plain;charset=US-ASCII"
196 headers = email.message_from_string(
197 "Content-type: %s\nContent-length: %d\n" % (mediatype, len(data)))
199 return compat_urllib_response.addinfourl(io.BytesIO(data), headers, url)
202 compat_basestring = basestring # Python 2
204 compat_basestring = str
207 compat_chr = unichr # Python 2
212 from xml.etree.ElementTree import ParseError as compat_xml_parse_error
213 except ImportError: # Python 2.6
214 from xml.parsers.expat import ExpatError as compat_xml_parse_error
216 if sys.version_info[0] >= 3:
217 compat_etree_fromstring = xml.etree.ElementTree.fromstring
219 # python 2.x tries to encode unicode strings with ascii (see the
220 # XMLParser._fixtext method)
221 etree = xml.etree.ElementTree
224 _etree_iter = etree.Element.iter
225 except AttributeError: # Python <=2.6
226 def _etree_iter(root):
227 for el in root.findall('*'):
229 for sub in _etree_iter(el):
232 # on 2.6 XML doesn't have a parser argument, function copied from CPython
234 def _XML(text, parser=None):
236 parser = etree.XMLParser(target=etree.TreeBuilder())
238 return parser.close()
240 def _element_factory(*args, **kwargs):
241 el = etree.Element(*args, **kwargs)
242 for k, v in el.items():
243 if isinstance(v, bytes):
244 el.set(k, v.decode('utf-8'))
247 def compat_etree_fromstring(text):
248 doc = _XML(text, parser=etree.XMLParser(target=etree.TreeBuilder(element_factory=_element_factory)))
249 for el in _etree_iter(doc):
250 if el.text is not None and isinstance(el.text, bytes):
251 el.text = el.text.decode('utf-8')
255 from urllib.parse import parse_qs as compat_parse_qs
256 except ImportError: # Python 2
257 # HACK: The following is the correct parse_qs implementation from cpython 3's stdlib.
258 # Python 2's version is apparently totally broken
260 def _parse_qsl(qs, keep_blank_values=False, strict_parsing=False,
261 encoding='utf-8', errors='replace'):
262 qs, _coerce_result = qs, compat_str
263 pairs = [s2 for s1 in qs.split('&') for s2 in s1.split(';')]
265 for name_value in pairs:
266 if not name_value and not strict_parsing:
268 nv = name_value.split('=', 1)
271 raise ValueError("bad query field: %r" % (name_value,))
272 # Handle case of a control-name with no equal sign
273 if keep_blank_values:
277 if len(nv[1]) or keep_blank_values:
278 name = nv[0].replace('+', ' ')
279 name = compat_urllib_parse_unquote(
280 name, encoding=encoding, errors=errors)
281 name = _coerce_result(name)
282 value = nv[1].replace('+', ' ')
283 value = compat_urllib_parse_unquote(
284 value, encoding=encoding, errors=errors)
285 value = _coerce_result(value)
286 r.append((name, value))
289 def compat_parse_qs(qs, keep_blank_values=False, strict_parsing=False,
290 encoding='utf-8', errors='replace'):
292 pairs = _parse_qsl(qs, keep_blank_values, strict_parsing,
293 encoding=encoding, errors=errors)
294 for name, value in pairs:
295 if name in parsed_result:
296 parsed_result[name].append(value)
298 parsed_result[name] = [value]
302 from shlex import quote as shlex_quote
303 except ImportError: # Python < 3.3
305 if re.match(r'^[-_\w./]+$', s):
308 return "'" + s.replace("'", "'\"'\"'") + "'"
311 if sys.version_info >= (2, 7, 3):
312 compat_shlex_split = shlex.split
314 # Working around shlex issue with unicode strings on some python 2
315 # versions (see http://bugs.python.org/issue1548891)
316 def compat_shlex_split(s, comments=False, posix=True):
317 if isinstance(s, compat_str):
318 s = s.encode('utf-8')
319 return shlex.split(s, comments, posix)
329 if sys.version_info >= (3, 0):
330 compat_getenv = os.getenv
331 compat_expanduser = os.path.expanduser
333 # Environment variables should be decoded with filesystem encoding.
334 # Otherwise it will fail if any non-ASCII characters present (see #3854 #3217 #2918)
336 def compat_getenv(key, default=None):
337 from .utils import get_filesystem_encoding
338 env = os.getenv(key, default)
340 env = env.decode(get_filesystem_encoding())
343 # HACK: The default implementations of os.path.expanduser from cpython do not decode
344 # environment variables with filesystem encoding. We will work around this by
345 # providing adjusted implementations.
346 # The following are os.path.expanduser implementations from cpython 2.7.8 stdlib
347 # for different platforms with correct environment variables decoding.
349 if os.name == 'posix':
350 def compat_expanduser(path):
351 """Expand ~ and ~user constructions. If user or $HOME is unknown,
353 if not path.startswith('~'):
355 i = path.find('/', 1)
359 if 'HOME' not in os.environ:
361 userhome = pwd.getpwuid(os.getuid()).pw_dir
363 userhome = compat_getenv('HOME')
367 pwent = pwd.getpwnam(path[1:i])
370 userhome = pwent.pw_dir
371 userhome = userhome.rstrip('/')
372 return (userhome + path[i:]) or '/'
373 elif os.name == 'nt' or os.name == 'ce':
374 def compat_expanduser(path):
375 """Expand ~ and ~user constructs.
377 If user or $HOME is unknown, do nothing."""
381 while i < n and path[i] not in '/\\':
384 if 'HOME' in os.environ:
385 userhome = compat_getenv('HOME')
386 elif 'USERPROFILE' in os.environ:
387 userhome = compat_getenv('USERPROFILE')
388 elif 'HOMEPATH' not in os.environ:
392 drive = compat_getenv('HOMEDRIVE')
395 userhome = os.path.join(drive, compat_getenv('HOMEPATH'))
398 userhome = os.path.join(os.path.dirname(userhome), path[1:i])
400 return userhome + path[i:]
402 compat_expanduser = os.path.expanduser
405 if sys.version_info < (3, 0):
407 from .utils import preferredencoding
408 print(s.encode(preferredencoding(), 'xmlcharrefreplace'))
411 assert isinstance(s, compat_str)
416 subprocess_check_output = subprocess.check_output
417 except AttributeError:
418 def subprocess_check_output(*args, **kwargs):
419 assert 'input' not in kwargs
420 p = subprocess.Popen(*args, stdout=subprocess.PIPE, **kwargs)
421 output, _ = p.communicate()
424 raise subprocess.CalledProcessError(ret, p.args, output=output)
427 if sys.version_info < (3, 0) and sys.platform == 'win32':
428 def compat_getpass(prompt, *args, **kwargs):
429 if isinstance(prompt, compat_str):
430 from .utils import preferredencoding
431 prompt = prompt.encode(preferredencoding())
432 return getpass.getpass(prompt, *args, **kwargs)
434 compat_getpass = getpass.getpass
436 # Python < 2.6.5 require kwargs to be bytes
440 _testfunc(**{'x': 0})
442 def compat_kwargs(kwargs):
443 return dict((bytes(k), v) for k, v in kwargs.items())
445 compat_kwargs = lambda kwargs: kwargs
448 if sys.version_info < (2, 7):
449 def compat_socket_create_connection(address, timeout, source_address=None):
452 for res in socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM):
453 af, socktype, proto, canonname, sa = res
456 sock = socket.socket(af, socktype, proto)
457 sock.settimeout(timeout)
459 sock.bind(source_address)
462 except socket.error as _:
469 raise socket.error("getaddrinfo returns an empty list")
471 compat_socket_create_connection = socket.create_connection
474 # Fix https://github.com/rg3/youtube-dl/issues/4223
475 # See http://bugs.python.org/issue9161 for what is broken
476 def workaround_optparse_bug9161():
477 op = optparse.OptionParser()
478 og = optparse.OptionGroup(op, 'foo')
482 real_add_option = optparse.OptionGroup.add_option
484 def _compat_add_option(self, *args, **kwargs):
486 v.encode('ascii', 'replace') if isinstance(v, compat_str)
488 bargs = [enc(a) for a in args]
490 (k, enc(v)) for k, v in kwargs.items())
491 return real_add_option(self, *bargs, **bkwargs)
492 optparse.OptionGroup.add_option = _compat_add_option
494 if hasattr(shutil, 'get_terminal_size'): # Python >= 3.3
495 compat_get_terminal_size = shutil.get_terminal_size
497 _terminal_size = collections.namedtuple('terminal_size', ['columns', 'lines'])
499 def compat_get_terminal_size(fallback=(80, 24)):
500 columns = compat_getenv('COLUMNS')
502 columns = int(columns)
505 lines = compat_getenv('LINES')
511 if columns is None or lines is None or columns <= 0 or lines <= 0:
513 sp = subprocess.Popen(
515 stdout=subprocess.PIPE, stderr=subprocess.PIPE)
516 out, err = sp.communicate()
517 _lines, _columns = map(int, out.split())
519 _columns, _lines = _terminal_size(*fallback)
521 if columns is None or columns <= 0:
523 if lines is None or lines <= 0:
525 return _terminal_size(columns, lines)
528 itertools.count(start=0, step=1)
529 compat_itertools_count = itertools.count
530 except TypeError: # Python 2.6
531 def compat_itertools_count(start=0, step=1):
537 if sys.version_info >= (3, 0):
538 from tokenize import tokenize as compat_tokenize_tokenize
540 from tokenize import generate_tokens as compat_tokenize_tokenize
548 'compat_etree_fromstring',
550 'compat_get_terminal_size',
553 'compat_html_entities',
554 'compat_http_client',
555 'compat_http_server',
556 'compat_itertools_count',
561 'compat_shlex_split',
562 'compat_socket_create_connection',
564 'compat_subprocess_get_DEVNULL',
565 'compat_tokenize_tokenize',
566 'compat_urllib_error',
567 'compat_urllib_parse',
568 'compat_urllib_parse_unquote',
569 'compat_urllib_parse_unquote_plus',
570 'compat_urllib_parse_unquote_to_bytes',
571 'compat_urllib_parse_urlparse',
572 'compat_urllib_request',
573 'compat_urllib_request_DataHandler',
574 'compat_urllib_response',
576 'compat_urlretrieve',
577 'compat_xml_parse_error',
579 'subprocess_check_output',
580 'workaround_optparse_bug9161',