X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/47d80ec0b18245caeb97018d4c1af18d0b5b972b..96981814751d51f37fe7347060de3a51c982f5ec:/youtube_dl/compat.py diff --git a/youtube_dl/compat.py b/youtube_dl/compat.py index 83ee7e2..d1b86bd 100644 --- a/youtube_dl/compat.py +++ b/youtube_dl/compat.py @@ -1,13 +1,17 @@ # coding: utf-8 from __future__ import unicode_literals +import base64 import binascii import collections +import ctypes import email import getpass import io +import itertools import optparse import os +import platform import re import shlex import shutil @@ -15,7 +19,6 @@ import socket import struct import subprocess import sys -import itertools import xml.etree.ElementTree @@ -2322,6 +2325,19 @@ try: except ImportError: # Python 2 from HTMLParser import HTMLParser as compat_HTMLParser +try: # Python 2 + from HTMLParser import HTMLParseError as compat_HTMLParseError +except ImportError: # Python <3.4 + try: + from html.parser import HTMLParseError as compat_HTMLParseError + except ImportError: # Python >3.4 + + # HTMLParseError has been deprecated in Python 3.3 and removed in + # Python 3.5. Introducing dummy exception for Python >3.5 for compatible + # and uniform cross-version exceptiong handling + class compat_HTMLParseError(Exception): + pass + try: from subprocess import DEVNULL compat_subprocess_get_DEVNULL = lambda: DEVNULL @@ -2344,11 +2360,11 @@ try: from urllib.parse import unquote_plus as compat_urllib_parse_unquote_plus except ImportError: # Python 2 _asciire = (compat_urllib_parse._asciire if hasattr(compat_urllib_parse, '_asciire') - else re.compile('([\x00-\x7f]+)')) + else re.compile(r'([\x00-\x7f]+)')) # HACK: The following are the correct unquote_to_bytes, unquote and unquote_plus # implementations from cpython 3.4.3's stdlib. Python 2's version - # is apparently broken (see https://github.com/rg3/youtube-dl/pull/6244) + # is apparently broken (see https://github.com/ytdl-org/youtube-dl/pull/6244) def compat_urllib_parse_unquote_to_bytes(string): """unquote_to_bytes('abc%20def') -> b'abc def'.""" @@ -2492,6 +2508,15 @@ class _TreeBuilder(etree.TreeBuilder): pass +try: + # xml.etree.ElementTree.Element is a method in Python <=2.6 and + # the following will crash with: + # TypeError: isinstance() arg 2 must be a class, type, or tuple of classes and types + isinstance(None, xml.etree.ElementTree.Element) + from xml.etree.ElementTree import Element as compat_etree_Element +except TypeError: # Python <=2.6 + from xml.etree.ElementTree import _ElementInterface as compat_etree_Element + if sys.version_info[0] >= 3: def compat_etree_fromstring(text): return etree.XML(text, parser=etree.XMLParser(target=_TreeBuilder())) @@ -2529,6 +2554,24 @@ else: el.text = el.text.decode('utf-8') return doc +if hasattr(etree, 'register_namespace'): + compat_etree_register_namespace = etree.register_namespace +else: + def compat_etree_register_namespace(prefix, uri): + """Register a namespace prefix. + The registry is global, and any existing mapping for either the + given prefix or the namespace URI will be removed. + *prefix* is the namespace prefix, *uri* is a namespace uri. Tags and + attributes in this namespace will be serialized with prefix if possible. + ValueError is raised if prefix is reserved or is invalid. + """ + if re.match(r"ns\d+$", prefix): + raise ValueError("Prefix format reserved for internal use") + for k, v in list(etree._namespace_map.items()): + if k == uri or v == prefix: + del etree._namespace_map[k] + etree._namespace_map[uri] = prefix + if sys.version_info < (2, 7): # Here comes the crazy part: In 2.6, if the xpath is a unicode, # .//node does not match if a node is a direct child of . ! @@ -2586,21 +2629,29 @@ except ImportError: # Python 2 parsed_result[name] = [value] return parsed_result -try: - from shlex import quote as compat_shlex_quote -except ImportError: # Python < 3.3 + +compat_os_name = os._name if os.name == 'java' else os.name + + +if compat_os_name == 'nt': def compat_shlex_quote(s): - if re.match(r'^[-_\w./]+$', s): - return s - else: - return "'" + s.replace("'", "'\"'\"'") + "'" + return s if re.match(r'^[-_\w./]+$', s) else '"%s"' % s.replace('"', '\\"') +else: + try: + from shlex import quote as compat_shlex_quote + except ImportError: # Python < 3.3 + def compat_shlex_quote(s): + if re.match(r'^[-_\w./]+$', s): + return s + else: + return "'" + s.replace("'", "'\"'\"'") + "'" try: args = shlex.split('中文') - assert (isinstance(args, list) and - isinstance(args[0], compat_str) and - args[0] == '中文') + assert (isinstance(args, list) + and isinstance(args[0], compat_str) + and args[0] == '中文') compat_shlex_split = shlex.split except (AssertionError, UnicodeEncodeError): # Working around shlex issue with unicode strings on some python 2 @@ -2618,9 +2669,6 @@ def compat_ord(c): return ord(c) -compat_os_name = os._name if os.name == 'java' else os.name - - if sys.version_info >= (3, 0): compat_getenv = os.getenv compat_expanduser = os.path.expanduser @@ -2674,7 +2722,7 @@ else: userhome = pwent.pw_dir userhome = userhome.rstrip('/') return (userhome + path[i:]) or '/' - elif compat_os_name == 'nt' or compat_os_name == 'ce': + elif compat_os_name in ('nt', 'ce'): def compat_expanduser(path): """Expand ~ and ~user constructs. @@ -2706,6 +2754,17 @@ else: compat_expanduser = os.path.expanduser +if compat_os_name == 'nt' and sys.version_info < (3, 8): + # os.path.realpath on Windows does not follow symbolic links + # prior to Python 3.8 (see https://bugs.python.org/issue9949) + def compat_realpath(path): + while os.path.islink(path): + path = os.path.abspath(os.readlink(path)) + return path +else: + compat_realpath = os.path.realpath + + if sys.version_info < (3, 0): def compat_print(s): from .utils import preferredencoding @@ -2742,6 +2801,18 @@ else: compat_kwargs = lambda kwargs: kwargs +try: + compat_numeric_types = (int, float, long, complex) +except NameError: # Python 3 + compat_numeric_types = (int, float, complex) + + +try: + compat_integer_types = (int, long) +except NameError: # Python 3 + compat_integer_types = (int, ) + + if sys.version_info < (2, 7): def compat_socket_create_connection(address, timeout, source_address=None): host, port = address @@ -2768,7 +2839,7 @@ else: compat_socket_create_connection = socket.create_connection -# Fix https://github.com/rg3/youtube-dl/issues/4223 +# Fix https://github.com/ytdl-org/youtube-dl/issues/4223 # See http://bugs.python.org/issue9161 for what is broken def workaround_optparse_bug9161(): op = optparse.OptionParser() @@ -2852,19 +2923,75 @@ except TypeError: if isinstance(spec, compat_str): spec = spec.encode('ascii') return struct.unpack(spec, *args) + + class compat_Struct(struct.Struct): + def __init__(self, fmt): + if isinstance(fmt, compat_str): + fmt = fmt.encode('ascii') + super(compat_Struct, self).__init__(fmt) else: compat_struct_pack = struct.pack compat_struct_unpack = struct.unpack + if platform.python_implementation() == 'IronPython' and sys.version_info < (2, 7, 8): + class compat_Struct(struct.Struct): + def unpack(self, string): + if not isinstance(string, buffer): # noqa: F821 + string = buffer(string) # noqa: F821 + return super(compat_Struct, self).unpack(string) + else: + compat_Struct = struct.Struct + + +try: + from future_builtins import zip as compat_zip +except ImportError: # not 2.6+ or is 3.x + try: + from itertools import izip as compat_zip # < 2.5 or 3.x + except ImportError: + compat_zip = zip + + +if sys.version_info < (3, 3): + def compat_b64decode(s, *args, **kwargs): + if isinstance(s, compat_str): + s = s.encode('ascii') + return base64.b64decode(s, *args, **kwargs) +else: + compat_b64decode = base64.b64decode + + +if platform.python_implementation() == 'PyPy' and sys.pypy_version_info < (5, 4, 0): + # PyPy2 prior to version 5.4.0 expects byte strings as Windows function + # names, see the original PyPy issue [1] and the youtube-dl one [2]. + # 1. https://bitbucket.org/pypy/pypy/issues/2360/windows-ctypescdll-typeerror-function-name + # 2. https://github.com/ytdl-org/youtube-dl/pull/4392 + def compat_ctypes_WINFUNCTYPE(*args, **kwargs): + real = ctypes.WINFUNCTYPE(*args, **kwargs) + + def resf(tpl, *args, **kwargs): + funcname, dll = tpl + return real((str(funcname), dll), *args, **kwargs) + + return resf +else: + def compat_ctypes_WINFUNCTYPE(*args, **kwargs): + return ctypes.WINFUNCTYPE(*args, **kwargs) __all__ = [ + 'compat_HTMLParseError', 'compat_HTMLParser', 'compat_HTTPError', + 'compat_Struct', + 'compat_b64decode', 'compat_basestring', 'compat_chr', 'compat_cookiejar', 'compat_cookies', + 'compat_ctypes_WINFUNCTYPE', + 'compat_etree_Element', 'compat_etree_fromstring', + 'compat_etree_register_namespace', 'compat_expanduser', 'compat_get_terminal_size', 'compat_getenv', @@ -2874,12 +3001,15 @@ __all__ = [ 'compat_http_client', 'compat_http_server', 'compat_input', + 'compat_integer_types', 'compat_itertools_count', 'compat_kwargs', + 'compat_numeric_types', 'compat_ord', 'compat_os_name', 'compat_parse_qs', 'compat_print', + 'compat_realpath', 'compat_setenv', 'compat_shlex_quote', 'compat_shlex_split', @@ -2903,5 +3033,6 @@ __all__ = [ 'compat_urlretrieve', 'compat_xml_parse_error', 'compat_xpath', + 'compat_zip', 'workaround_optparse_bug9161', ]