X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube_dl%2Fcompat.py;h=fabac9fd2400240d4da0da3b355a6926408cc283;hb=1ae6c83bceb6dbc7093fe35ddafcde08dd0151a6;hp=2771fb5faa371ccf01d1d4f9449b87c7a380c175;hpb=12557339453e25dbb18dfc51dc1e88ca5325d8e9;p=youtube-dl diff --git a/youtube_dl/compat.py b/youtube_dl/compat.py index 2771fb5fa..fabac9fd2 100644 --- a/youtube_dl/compat.py +++ b/youtube_dl/compat.py @@ -11,6 +11,7 @@ import re import shlex import shutil import socket +import struct import subprocess import sys import itertools @@ -77,6 +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 @@ -164,6 +170,32 @@ 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 @@ -213,13 +245,20 @@ try: 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: - compat_etree_fromstring = xml.etree.ElementTree.fromstring + 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) - etree = xml.etree.ElementTree - try: _etree_iter = etree.Element.iter except AttributeError: # Python <=2.6 @@ -233,7 +272,7 @@ else: # 2.7 source def _XML(text, parser=None): if not parser: - parser = etree.XMLParser(target=etree.TreeBuilder()) + parser = etree.XMLParser(target=_TreeBuilder()) parser.feed(text) return parser.close() @@ -245,12 +284,22 @@ else: return el def compat_etree_fromstring(text): - doc = _XML(text, parser=etree.XMLParser(target=etree.TreeBuilder(element_factory=_element_factory))) + 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 @@ -299,9 +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: @@ -332,6 +381,9 @@ 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) @@ -343,6 +395,12 @@ 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. @@ -415,18 +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): @@ -436,6 +482,11 @@ if sys.version_info < (3, 0) and sys.platform == 'win32': else: compat_getpass = getpass.getpass +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): @@ -542,7 +593,28 @@ 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', @@ -562,9 +634,13 @@ __all__ = [ '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', @@ -572,6 +648,7 @@ __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', @@ -579,7 +656,6 @@ __all__ = [ 'compat_urlparse', 'compat_urlretrieve', 'compat_xml_parse_error', - 'shlex_quote', - 'subprocess_check_output', + 'compat_xpath', 'workaround_optparse_bug9161', ]