X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube_dl%2Fcompat.py;h=fabac9fd2400240d4da0da3b355a6926408cc283;hb=1ae6c83bceb6dbc7093fe35ddafcde08dd0151a6;hp=1ba4ab78cc44af89f5ff528d0db979a8dff5f3b8;hpb=4810c48d6d7e950c2cb1203f4d07bea1ba02c1e1;p=youtube-dl diff --git a/youtube_dl/compat.py b/youtube_dl/compat.py index 1ba4ab78c..fabac9fd2 100644 --- a/youtube_dl/compat.py +++ b/youtube_dl/compat.py @@ -1,16 +1,21 @@ from __future__ import unicode_literals +import binascii import collections +import email import getpass +import io import optparse import os import re import shlex import shutil import socket +import struct import subprocess import sys import itertools +import xml.etree.ElementTree try: @@ -38,6 +43,11 @@ try: except ImportError: # Python 2 import urlparse as compat_urlparse +try: + import urllib.response as compat_urllib_response +except ImportError: # Python 2 + import urllib as compat_urllib_response + try: import http.cookiejar as compat_cookiejar except ImportError: # Python 2 @@ -68,6 +78,11 @@ try: except ImportError: # Python 2 from urllib import urlretrieve as compat_urlretrieve +try: + from html.parser import HTMLParser as compat_HTMLParser +except ImportError: # Python 2 + from HTMLParser import HTMLParser as compat_HTMLParser + try: from subprocess import DEVNULL @@ -155,6 +170,66 @@ except ImportError: # Python 2 string = string.replace('+', ' ') return compat_urllib_parse_unquote(string, encoding, errors) +try: + from urllib.parse import urlencode as compat_urllib_parse_urlencode +except ImportError: # Python 2 + # Python 2 will choke in urlencode on mixture of byte and unicode strings. + # Possible solutions are to either port it from python 3 with all + # the friends or manually ensure input query contains only byte strings. + # We will stick with latter thus recursively encoding the whole query. + def compat_urllib_parse_urlencode(query, doseq=0, encoding='utf-8'): + def encode_elem(e): + if isinstance(e, dict): + e = encode_dict(e) + elif isinstance(e, (list, tuple,)): + list_e = encode_list(e) + e = tuple(list_e) if isinstance(e, tuple) else list_e + elif isinstance(e, compat_str): + e = e.encode(encoding) + return e + + def encode_dict(d): + return dict((encode_elem(k), encode_elem(v)) for k, v in d.items()) + + def encode_list(l): + return [encode_elem(e) for e in l] + + return compat_urllib_parse.urlencode(encode_elem(query), doseq=doseq) + +try: + from urllib.request import DataHandler as compat_urllib_request_DataHandler +except ImportError: # Python < 3.4 + # Ported from CPython 98774:1733b3bd46db, Lib/urllib/request.py + class compat_urllib_request_DataHandler(compat_urllib_request.BaseHandler): + def data_open(self, req): + # data URLs as specified in RFC 2397. + # + # ignores POSTed data + # + # syntax: + # dataurl := "data:" [ mediatype ] [ ";base64" ] "," data + # mediatype := [ type "/" subtype ] *( ";" parameter ) + # data := *urlchar + # parameter := attribute "=" value + url = req.get_full_url() + + scheme, data = url.split(':', 1) + mediatype, data = data.split(',', 1) + + # even base64 encoded data URLs might be quoted so unquote in any case: + data = compat_urllib_parse_unquote_to_bytes(data) + if mediatype.endswith(';base64'): + data = binascii.a2b_base64(data) + mediatype = mediatype[:-7] + + if not mediatype: + mediatype = 'text/plain;charset=US-ASCII' + + headers = email.message_from_string( + 'Content-type: %s\nContent-length: %d\n' % (mediatype, len(data))) + + return compat_urllib_response.addinfourl(io.BytesIO(data), headers, url) + try: compat_basestring = basestring # Python 2 except NameError: @@ -171,6 +246,60 @@ except ImportError: # Python 2.6 from xml.parsers.expat import ExpatError as compat_xml_parse_error +etree = xml.etree.ElementTree + + +class _TreeBuilder(etree.TreeBuilder): + def doctype(self, name, pubid, system): + pass + +if sys.version_info[0] >= 3: + def compat_etree_fromstring(text): + return etree.XML(text, parser=etree.XMLParser(target=_TreeBuilder())) +else: + # python 2.x tries to encode unicode strings with ascii (see the + # XMLParser._fixtext method) + try: + _etree_iter = etree.Element.iter + except AttributeError: # Python <=2.6 + def _etree_iter(root): + for el in root.findall('*'): + yield el + for sub in _etree_iter(el): + yield sub + + # on 2.6 XML doesn't have a parser argument, function copied from CPython + # 2.7 source + def _XML(text, parser=None): + if not parser: + parser = etree.XMLParser(target=_TreeBuilder()) + parser.feed(text) + return parser.close() + + def _element_factory(*args, **kwargs): + el = etree.Element(*args, **kwargs) + for k, v in el.items(): + if isinstance(v, bytes): + el.set(k, v.decode('utf-8')) + return el + + def compat_etree_fromstring(text): + doc = _XML(text, parser=etree.XMLParser(target=_TreeBuilder(element_factory=_element_factory))) + for el in _etree_iter(doc): + if el.text is not None and isinstance(el.text, bytes): + el.text = el.text.decode('utf-8') + return doc + +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 . ! + def compat_xpath(xpath): + if isinstance(xpath, compat_str): + xpath = xpath.encode('ascii') + return xpath +else: + compat_xpath = lambda xpath: xpath + try: from urllib.parse import parse_qs as compat_parse_qs except ImportError: # Python 2 @@ -188,7 +317,7 @@ except ImportError: # Python 2 nv = name_value.split('=', 1) if len(nv) != 2: if strict_parsing: - raise ValueError("bad query field: %r" % (name_value,)) + raise ValueError('bad query field: %r' % (name_value,)) # Handle case of a control-name with no equal sign if keep_blank_values: nv.append('') @@ -219,9 +348,9 @@ except ImportError: # Python 2 return parsed_result try: - from shlex import quote as shlex_quote + from shlex import quote as compat_shlex_quote except ImportError: # Python < 3.3 - def shlex_quote(s): + def compat_shlex_quote(s): if re.match(r'^[-_\w./]+$', s): return s else: @@ -246,9 +375,15 @@ 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 + + def compat_setenv(key, value, env=os.environ): + env[key] = value else: # Environment variables should be decoded with filesystem encoding. # Otherwise it will fail if any non-ASCII characters present (see #3854 #3217 #2918) @@ -260,13 +395,19 @@ else: env = env.decode(get_filesystem_encoding()) return env + def compat_setenv(key, value, env=os.environ): + def encode(v): + from .utils import get_filesystem_encoding + return v.encode(get_filesystem_encoding()) if isinstance(v, compat_str) else v + env[encode(key)] = encode(value) + # HACK: The default implementations of os.path.expanduser from cpython do not decode # environment variables with filesystem encoding. We will work around this by # providing adjusted implementations. # The following are os.path.expanduser implementations from cpython 2.7.8 stdlib # for different platforms with correct environment variables decoding. - if os.name == 'posix': + if compat_os_name == 'posix': def compat_expanduser(path): """Expand ~ and ~user constructions. If user or $HOME is unknown, do nothing.""" @@ -290,7 +431,7 @@ else: userhome = pwent.pw_dir userhome = userhome.rstrip('/') return (userhome + path[i:]) or '/' - elif os.name == 'nt' or os.name == 'ce': + elif compat_os_name == 'nt' or compat_os_name == 'ce': def compat_expanduser(path): """Expand ~ and ~user constructs. @@ -332,18 +473,6 @@ else: print(s) -try: - subprocess_check_output = subprocess.check_output -except AttributeError: - def subprocess_check_output(*args, **kwargs): - assert 'input' not in kwargs - p = subprocess.Popen(*args, stdout=subprocess.PIPE, **kwargs) - output, _ = p.communicate() - ret = p.poll() - if ret: - raise subprocess.CalledProcessError(ret, p.args, output=output) - return output - if sys.version_info < (3, 0) and sys.platform == 'win32': def compat_getpass(prompt, *args, **kwargs): if isinstance(prompt, compat_str): @@ -353,7 +482,12 @@ if sys.version_info < (3, 0) and sys.platform == 'win32': else: compat_getpass = getpass.getpass -# Old 2.6 and 2.7 releases require kwargs to be bytes +try: + compat_input = raw_input +except NameError: # Python 3 + compat_input = input + +# Python < 2.6.5 require kwargs to be bytes try: def _testfunc(x): pass @@ -386,7 +520,7 @@ if sys.version_info < (2, 7): if err is not None: raise err else: - raise socket.error("getaddrinfo returns an empty list") + raise socket.error('getaddrinfo returns an empty list') else: compat_socket_create_connection = socket.create_connection @@ -434,7 +568,7 @@ else: ['stty', 'size'], stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, err = sp.communicate() - _columns, _lines = map(int, out.split()) + _lines, _columns = map(int, out.split()) except Exception: _columns, _lines = _terminal_size(*fallback) @@ -459,12 +593,34 @@ if sys.version_info >= (3, 0): 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', @@ -475,11 +631,16 @@ __all__ = [ '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', @@ -487,12 +648,14 @@ __all__ = [ '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', - 'shlex_quote', - 'subprocess_check_output', + 'compat_xpath', 'workaround_optparse_bug9161', ]