X-Git-Url: https://git.rapsys.eu/.gitweb.cgi/youtubedl/blobdiff_plain/feb5020b37d7d3ba4005a8bac6f4efece4ce4b8c..bad87b6c6e31ea0056d795ca3e7aa81ceaad2291:/youtube_dl/utils.py
diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 9137a4f..d1eca37 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -1,170 +1,1782 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
+# coding: utf-8
 
+from __future__ import unicode_literals
+
+import base64
+import binascii
+import calendar
+import codecs
+import collections
+import contextlib
+import ctypes
+import datetime
+import email.utils
+import email.header
 import errno
+import functools
 import gzip
 import io
+import itertools
 import json
 import locale
+import math
+import operator
 import os
+import platform
+import random
 import re
+import socket
+import ssl
+import subprocess
 import sys
+import tempfile
+import time
 import traceback
+import xml.etree.ElementTree
 import zlib
-import email.utils
-import socket
-import datetime
 
-try:
-    import urllib.request as compat_urllib_request
-except ImportError: # Python 2
-    import urllib2 as compat_urllib_request
-
-try:
-    import urllib.error as compat_urllib_error
-except ImportError: # Python 2
-    import urllib2 as compat_urllib_error
-
-try:
-    import urllib.parse as compat_urllib_parse
-except ImportError: # Python 2
-    import urllib as compat_urllib_parse
-
-try:
-    from urllib.parse import urlparse as compat_urllib_parse_urlparse
-except ImportError: # Python 2
-    from urlparse import urlparse as compat_urllib_parse_urlparse
-
-try:
-    import http.cookiejar as compat_cookiejar
-except ImportError: # Python 2
-    import cookielib as compat_cookiejar
-
-try:
-    import html.entities as compat_html_entities
-except ImportError: # Python 2
-    import htmlentitydefs as compat_html_entities
-
-try:
-    import html.parser as compat_html_parser
-except ImportError: # Python 2
-    import HTMLParser as compat_html_parser
-
-try:
-    import http.client as compat_http_client
-except ImportError: # Python 2
-    import httplib as compat_http_client
-
-try:
-    from subprocess import DEVNULL
-    compat_subprocess_get_DEVNULL = lambda: DEVNULL
-except ImportError:
-    compat_subprocess_get_DEVNULL = lambda: open(os.path.devnull, 'w')
-
-try:
-    from urllib.parse import parse_qs as compat_parse_qs
-except ImportError: # Python 2
-    # HACK: The following is the correct parse_qs implementation from cpython 3's stdlib.
-    # Python 2's version is apparently totally broken
-    def _unquote(string, encoding='utf-8', errors='replace'):
-        if string == '':
-            return string
-        res = string.split('%')
-        if len(res) == 1:
-            return string
-        if encoding is None:
-            encoding = 'utf-8'
-        if errors is None:
-            errors = 'replace'
-        # pct_sequence: contiguous sequence of percent-encoded bytes, decoded
-        pct_sequence = b''
-        string = res[0]
-        for item in res[1:]:
-            try:
-                if not item:
-                    raise ValueError
-                pct_sequence += item[:2].decode('hex')
-                rest = item[2:]
-                if not rest:
-                    # This segment was just a single percent-encoded character.
-                    # May be part of a sequence of code units, so delay decoding.
-                    # (Stored in pct_sequence).
-                    continue
-            except ValueError:
-                rest = '%' + item
-            # Encountered non-percent-encoded characters. Flush the current
-            # pct_sequence.
-            string += pct_sequence.decode(encoding, errors) + rest
-            pct_sequence = b''
-        if pct_sequence:
-            # Flush the final pct_sequence
-            string += pct_sequence.decode(encoding, errors)
-        return string
-
-    def _parse_qsl(qs, keep_blank_values=False, strict_parsing=False,
-                encoding='utf-8', errors='replace'):
-        qs, _coerce_result = qs, unicode
-        pairs = [s2 for s1 in qs.split('&') for s2 in s1.split(';')]
-        r = []
-        for name_value in pairs:
-            if not name_value and not strict_parsing:
-                continue
-            nv = name_value.split('=', 1)
-            if len(nv) != 2:
-                if strict_parsing:
-                    raise ValueError("bad query field: %r" % (name_value,))
-                # Handle case of a control-name with no equal sign
-                if keep_blank_values:
-                    nv.append('')
-                else:
-                    continue
-            if len(nv[1]) or keep_blank_values:
-                name = nv[0].replace('+', ' ')
-                name = _unquote(name, encoding=encoding, errors=errors)
-                name = _coerce_result(name)
-                value = nv[1].replace('+', ' ')
-                value = _unquote(value, encoding=encoding, errors=errors)
-                value = _coerce_result(value)
-                r.append((name, value))
-        return r
-
-    def compat_parse_qs(qs, keep_blank_values=False, strict_parsing=False,
-                encoding='utf-8', errors='replace'):
-        parsed_result = {}
-        pairs = _parse_qsl(qs, keep_blank_values, strict_parsing,
-                        encoding=encoding, errors=errors)
-        for name, value in pairs:
-            if name in parsed_result:
-                parsed_result[name].append(value)
-            else:
-                parsed_result[name] = [value]
-        return parsed_result
+from .compat import (
+    compat_HTMLParseError,
+    compat_HTMLParser,
+    compat_basestring,
+    compat_chr,
+    compat_cookiejar,
+    compat_ctypes_WINFUNCTYPE,
+    compat_etree_fromstring,
+    compat_expanduser,
+    compat_html_entities,
+    compat_html_entities_html5,
+    compat_http_client,
+    compat_integer_types,
+    compat_kwargs,
+    compat_os_name,
+    compat_parse_qs,
+    compat_shlex_quote,
+    compat_str,
+    compat_struct_pack,
+    compat_struct_unpack,
+    compat_urllib_error,
+    compat_urllib_parse,
+    compat_urllib_parse_urlencode,
+    compat_urllib_parse_urlparse,
+    compat_urllib_parse_unquote_plus,
+    compat_urllib_request,
+    compat_urlparse,
+    compat_xpath,
+)
 
-try:
-    compat_str = unicode # Python 2
-except NameError:
-    compat_str = str
+from .socks import (
+    ProxyType,
+    sockssocket,
+)
 
-try:
-    compat_chr = unichr # Python 2
-except NameError:
-    compat_chr = chr
 
-def compat_ord(c):
-    if type(c) is int: return c
-    else: return ord(c)
+def register_socks_protocols():
+    # "Register" SOCKS protocols
+    # In Python < 2.6.5, urlsplit() suffers from bug https://bugs.python.org/issue7904
+    # URLs with protocols not in urlparse.uses_netloc are not handled correctly
+    for scheme in ('socks', 'socks4', 'socks4a', 'socks5'):
+        if scheme not in compat_urlparse.uses_netloc:
+            compat_urlparse.uses_netloc.append(scheme)
+
 
 # This is not clearly defined otherwise
 compiled_regex_type = type(re.compile(''))
 
+
+def random_user_agent():
+    _USER_AGENT_TPL = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/%s Safari/537.36'
+    _CHROME_VERSIONS = (
+        '74.0.3729.129',
+        '76.0.3780.3',
+        '76.0.3780.2',
+        '74.0.3729.128',
+        '76.0.3780.1',
+        '76.0.3780.0',
+        '75.0.3770.15',
+        '74.0.3729.127',
+        '74.0.3729.126',
+        '76.0.3779.1',
+        '76.0.3779.0',
+        '75.0.3770.14',
+        '74.0.3729.125',
+        '76.0.3778.1',
+        '76.0.3778.0',
+        '75.0.3770.13',
+        '74.0.3729.124',
+        '74.0.3729.123',
+        '73.0.3683.121',
+        '76.0.3777.1',
+        '76.0.3777.0',
+        '75.0.3770.12',
+        '74.0.3729.122',
+        '76.0.3776.4',
+        '75.0.3770.11',
+        '74.0.3729.121',
+        '76.0.3776.3',
+        '76.0.3776.2',
+        '73.0.3683.120',
+        '74.0.3729.120',
+        '74.0.3729.119',
+        '74.0.3729.118',
+        '76.0.3776.1',
+        '76.0.3776.0',
+        '76.0.3775.5',
+        '75.0.3770.10',
+        '74.0.3729.117',
+        '76.0.3775.4',
+        '76.0.3775.3',
+        '74.0.3729.116',
+        '75.0.3770.9',
+        '76.0.3775.2',
+        '76.0.3775.1',
+        '76.0.3775.0',
+        '75.0.3770.8',
+        '74.0.3729.115',
+        '74.0.3729.114',
+        '76.0.3774.1',
+        '76.0.3774.0',
+        '75.0.3770.7',
+        '74.0.3729.113',
+        '74.0.3729.112',
+        '74.0.3729.111',
+        '76.0.3773.1',
+        '76.0.3773.0',
+        '75.0.3770.6',
+        '74.0.3729.110',
+        '74.0.3729.109',
+        '76.0.3772.1',
+        '76.0.3772.0',
+        '75.0.3770.5',
+        '74.0.3729.108',
+        '74.0.3729.107',
+        '76.0.3771.1',
+        '76.0.3771.0',
+        '75.0.3770.4',
+        '74.0.3729.106',
+        '74.0.3729.105',
+        '75.0.3770.3',
+        '74.0.3729.104',
+        '74.0.3729.103',
+        '74.0.3729.102',
+        '75.0.3770.2',
+        '74.0.3729.101',
+        '75.0.3770.1',
+        '75.0.3770.0',
+        '74.0.3729.100',
+        '75.0.3769.5',
+        '75.0.3769.4',
+        '74.0.3729.99',
+        '75.0.3769.3',
+        '75.0.3769.2',
+        '75.0.3768.6',
+        '74.0.3729.98',
+        '75.0.3769.1',
+        '75.0.3769.0',
+        '74.0.3729.97',
+        '73.0.3683.119',
+        '73.0.3683.118',
+        '74.0.3729.96',
+        '75.0.3768.5',
+        '75.0.3768.4',
+        '75.0.3768.3',
+        '75.0.3768.2',
+        '74.0.3729.95',
+        '74.0.3729.94',
+        '75.0.3768.1',
+        '75.0.3768.0',
+        '74.0.3729.93',
+        '74.0.3729.92',
+        '73.0.3683.117',
+        '74.0.3729.91',
+        '75.0.3766.3',
+        '74.0.3729.90',
+        '75.0.3767.2',
+        '75.0.3767.1',
+        '75.0.3767.0',
+        '74.0.3729.89',
+        '73.0.3683.116',
+        '75.0.3766.2',
+        '74.0.3729.88',
+        '75.0.3766.1',
+        '75.0.3766.0',
+        '74.0.3729.87',
+        '73.0.3683.115',
+        '74.0.3729.86',
+        '75.0.3765.1',
+        '75.0.3765.0',
+        '74.0.3729.85',
+        '73.0.3683.114',
+        '74.0.3729.84',
+        '75.0.3764.1',
+        '75.0.3764.0',
+        '74.0.3729.83',
+        '73.0.3683.113',
+        '75.0.3763.2',
+        '75.0.3761.4',
+        '74.0.3729.82',
+        '75.0.3763.1',
+        '75.0.3763.0',
+        '74.0.3729.81',
+        '73.0.3683.112',
+        '75.0.3762.1',
+        '75.0.3762.0',
+        '74.0.3729.80',
+        '75.0.3761.3',
+        '74.0.3729.79',
+        '73.0.3683.111',
+        '75.0.3761.2',
+        '74.0.3729.78',
+        '74.0.3729.77',
+        '75.0.3761.1',
+        '75.0.3761.0',
+        '73.0.3683.110',
+        '74.0.3729.76',
+        '74.0.3729.75',
+        '75.0.3760.0',
+        '74.0.3729.74',
+        '75.0.3759.8',
+        '75.0.3759.7',
+        '75.0.3759.6',
+        '74.0.3729.73',
+        '75.0.3759.5',
+        '74.0.3729.72',
+        '73.0.3683.109',
+        '75.0.3759.4',
+        '75.0.3759.3',
+        '74.0.3729.71',
+        '75.0.3759.2',
+        '74.0.3729.70',
+        '73.0.3683.108',
+        '74.0.3729.69',
+        '75.0.3759.1',
+        '75.0.3759.0',
+        '74.0.3729.68',
+        '73.0.3683.107',
+        '74.0.3729.67',
+        '75.0.3758.1',
+        '75.0.3758.0',
+        '74.0.3729.66',
+        '73.0.3683.106',
+        '74.0.3729.65',
+        '75.0.3757.1',
+        '75.0.3757.0',
+        '74.0.3729.64',
+        '73.0.3683.105',
+        '74.0.3729.63',
+        '75.0.3756.1',
+        '75.0.3756.0',
+        '74.0.3729.62',
+        '73.0.3683.104',
+        '75.0.3755.3',
+        '75.0.3755.2',
+        '73.0.3683.103',
+        '75.0.3755.1',
+        '75.0.3755.0',
+        '74.0.3729.61',
+        '73.0.3683.102',
+        '74.0.3729.60',
+        '75.0.3754.2',
+        '74.0.3729.59',
+        '75.0.3753.4',
+        '74.0.3729.58',
+        '75.0.3754.1',
+        '75.0.3754.0',
+        '74.0.3729.57',
+        '73.0.3683.101',
+        '75.0.3753.3',
+        '75.0.3752.2',
+        '75.0.3753.2',
+        '74.0.3729.56',
+        '75.0.3753.1',
+        '75.0.3753.0',
+        '74.0.3729.55',
+        '73.0.3683.100',
+        '74.0.3729.54',
+        '75.0.3752.1',
+        '75.0.3752.0',
+        '74.0.3729.53',
+        '73.0.3683.99',
+        '74.0.3729.52',
+        '75.0.3751.1',
+        '75.0.3751.0',
+        '74.0.3729.51',
+        '73.0.3683.98',
+        '74.0.3729.50',
+        '75.0.3750.0',
+        '74.0.3729.49',
+        '74.0.3729.48',
+        '74.0.3729.47',
+        '75.0.3749.3',
+        '74.0.3729.46',
+        '73.0.3683.97',
+        '75.0.3749.2',
+        '74.0.3729.45',
+        '75.0.3749.1',
+        '75.0.3749.0',
+        '74.0.3729.44',
+        '73.0.3683.96',
+        '74.0.3729.43',
+        '74.0.3729.42',
+        '75.0.3748.1',
+        '75.0.3748.0',
+        '74.0.3729.41',
+        '75.0.3747.1',
+        '73.0.3683.95',
+        '75.0.3746.4',
+        '74.0.3729.40',
+        '74.0.3729.39',
+        '75.0.3747.0',
+        '75.0.3746.3',
+        '75.0.3746.2',
+        '74.0.3729.38',
+        '75.0.3746.1',
+        '75.0.3746.0',
+        '74.0.3729.37',
+        '73.0.3683.94',
+        '75.0.3745.5',
+        '75.0.3745.4',
+        '75.0.3745.3',
+        '75.0.3745.2',
+        '74.0.3729.36',
+        '75.0.3745.1',
+        '75.0.3745.0',
+        '75.0.3744.2',
+        '74.0.3729.35',
+        '73.0.3683.93',
+        '74.0.3729.34',
+        '75.0.3744.1',
+        '75.0.3744.0',
+        '74.0.3729.33',
+        '73.0.3683.92',
+        '74.0.3729.32',
+        '74.0.3729.31',
+        '73.0.3683.91',
+        '75.0.3741.2',
+        '75.0.3740.5',
+        '74.0.3729.30',
+        '75.0.3741.1',
+        '75.0.3741.0',
+        '74.0.3729.29',
+        '75.0.3740.4',
+        '73.0.3683.90',
+        '74.0.3729.28',
+        '75.0.3740.3',
+        '73.0.3683.89',
+        '75.0.3740.2',
+        '74.0.3729.27',
+        '75.0.3740.1',
+        '75.0.3740.0',
+        '74.0.3729.26',
+        '73.0.3683.88',
+        '73.0.3683.87',
+        '74.0.3729.25',
+        '75.0.3739.1',
+        '75.0.3739.0',
+        '73.0.3683.86',
+        '74.0.3729.24',
+        '73.0.3683.85',
+        '75.0.3738.4',
+        '75.0.3738.3',
+        '75.0.3738.2',
+        '75.0.3738.1',
+        '75.0.3738.0',
+        '74.0.3729.23',
+        '73.0.3683.84',
+        '74.0.3729.22',
+        '74.0.3729.21',
+        '75.0.3737.1',
+        '75.0.3737.0',
+        '74.0.3729.20',
+        '73.0.3683.83',
+        '74.0.3729.19',
+        '75.0.3736.1',
+        '75.0.3736.0',
+        '74.0.3729.18',
+        '73.0.3683.82',
+        '74.0.3729.17',
+        '75.0.3735.1',
+        '75.0.3735.0',
+        '74.0.3729.16',
+        '73.0.3683.81',
+        '75.0.3734.1',
+        '75.0.3734.0',
+        '74.0.3729.15',
+        '73.0.3683.80',
+        '74.0.3729.14',
+        '75.0.3733.1',
+        '75.0.3733.0',
+        '75.0.3732.1',
+        '74.0.3729.13',
+        '74.0.3729.12',
+        '73.0.3683.79',
+        '74.0.3729.11',
+        '75.0.3732.0',
+        '74.0.3729.10',
+        '73.0.3683.78',
+        '74.0.3729.9',
+        '74.0.3729.8',
+        '74.0.3729.7',
+        '75.0.3731.3',
+        '75.0.3731.2',
+        '75.0.3731.0',
+        '74.0.3729.6',
+        '73.0.3683.77',
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+        '75.0.3730.5',
+        '75.0.3730.4',
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+        '74.0.3729.5',
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+        '75.0.3730.3',
+        '75.0.3730.2',
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+        '73.0.3683.72',
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+        '73.0.3683.71',
+        '74.0.3729.2',
+        '73.0.3683.70',
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+        '73.0.3683.69',
+        '74.0.3726.3',
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+        '73.0.3683.68',
+        '74.0.3726.1',
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+        '74.0.3725.4',
+        '73.0.3683.67',
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+        '74.0.3725.3',
+        '74.0.3725.2',
+        '74.0.3725.1',
+        '74.0.3724.8',
+        '74.0.3725.0',
+        '73.0.3683.65',
+        '74.0.3724.7',
+        '74.0.3724.6',
+        '74.0.3724.5',
+        '74.0.3724.4',
+        '74.0.3724.3',
+        '74.0.3724.2',
+        '74.0.3724.1',
+        '74.0.3724.0',
+        '73.0.3683.64',
+        '74.0.3723.1',
+        '74.0.3723.0',
+        '73.0.3683.63',
+        '74.0.3722.1',
+        '74.0.3722.0',
+        '73.0.3683.62',
+        '74.0.3718.9',
+        '74.0.3702.3',
+        '74.0.3721.3',
+        '74.0.3721.2',
+        '74.0.3721.1',
+        '74.0.3721.0',
+        '74.0.3720.6',
+        '73.0.3683.61',
+        '72.0.3626.122',
+        '73.0.3683.60',
+        '74.0.3720.5',
+        '72.0.3626.121',
+        '74.0.3718.8',
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+        '69.0.3497.30',
+        '68.0.3440.105',
+        '68.0.3440.104',
+        '70.0.3514.2',
+        '70.0.3514.1',
+        '70.0.3514.0',
+        '69.0.3497.29',
+        '68.0.3440.103',
+        '70.0.3513.1',
+        '70.0.3513.0',
+        '69.0.3497.28',
+    )
+    return _USER_AGENT_TPL % random.choice(_CHROME_VERSIONS)
+
+
 std_headers = {
-    'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20100101 Firefox/10.0',
+    'User-Agent': random_user_agent(),
     'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
     'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
     'Accept-Encoding': 'gzip, deflate',
     'Accept-Language': 'en-us,en;q=0.5',
 }
 
+
+USER_AGENTS = {
+    'Safari': 'Mozilla/5.0 (X11; Linux x86_64; rv:10.0) AppleWebKit/533.20.25 (KHTML, like Gecko) Version/5.0.4 Safari/533.20.27',
+}
+
+
+NO_DEFAULT = object()
+
+ENGLISH_MONTH_NAMES = [
+    'January', 'February', 'March', 'April', 'May', 'June',
+    'July', 'August', 'September', 'October', 'November', 'December']
+
+MONTH_NAMES = {
+    'en': ENGLISH_MONTH_NAMES,
+    'fr': [
+        'janvier', 'février', 'mars', 'avril', 'mai', 'juin',
+        'juillet', 'août', 'septembre', 'octobre', 'novembre', 'décembre'],
+}
+
+KNOWN_EXTENSIONS = (
+    'mp4', 'm4a', 'm4p', 'm4b', 'm4r', 'm4v', 'aac',
+    'flv', 'f4v', 'f4a', 'f4b',
+    'webm', 'ogg', 'ogv', 'oga', 'ogx', 'spx', 'opus',
+    'mkv', 'mka', 'mk3d',
+    'avi', 'divx',
+    'mov',
+    'asf', 'wmv', 'wma',
+    '3gp', '3g2',
+    'mp3',
+    'flac',
+    'ape',
+    'wav',
+    'f4f', 'f4m', 'm3u8', 'smil')
+
+# needed for sanitizing filenames in restricted mode
+ACCENT_CHARS = dict(zip('ÃÃÃÃÃÃ
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÅÃÅÃÃÃÃŰÃÃÃàáâãäåæçèéêëìÃîïðñòóôõöÅøÅùúûüűýþÿ',
+                        itertools.chain('AAAAAA', ['AE'], 'CEEEEIIIIDNOOOOOOO', ['OE'], 'UUUUUY', ['TH', 'ss'],
+                                        'aaaaaa', ['ae'], 'ceeeeiiiionooooooo', ['oe'], 'uuuuuy', ['th'], 'y')))
+
+DATE_FORMATS = (
+    '%d %B %Y',
+    '%d %b %Y',
+    '%B %d %Y',
+    '%B %dst %Y',
+    '%B %dnd %Y',
+    '%B %drd %Y',
+    '%B %dth %Y',
+    '%b %d %Y',
+    '%b %dst %Y',
+    '%b %dnd %Y',
+    '%b %drd %Y',
+    '%b %dth %Y',
+    '%b %dst %Y %I:%M',
+    '%b %dnd %Y %I:%M',
+    '%b %drd %Y %I:%M',
+    '%b %dth %Y %I:%M',
+    '%Y %m %d',
+    '%Y-%m-%d',
+    '%Y/%m/%d',
+    '%Y/%m/%d %H:%M',
+    '%Y/%m/%d %H:%M:%S',
+    '%Y-%m-%d %H:%M',
+    '%Y-%m-%d %H:%M:%S',
+    '%Y-%m-%d %H:%M:%S.%f',
+    '%d.%m.%Y %H:%M',
+    '%d.%m.%Y %H.%M',
+    '%Y-%m-%dT%H:%M:%SZ',
+    '%Y-%m-%dT%H:%M:%S.%fZ',
+    '%Y-%m-%dT%H:%M:%S.%f0Z',
+    '%Y-%m-%dT%H:%M:%S',
+    '%Y-%m-%dT%H:%M:%S.%f',
+    '%Y-%m-%dT%H:%M',
+    '%b %d %Y at %H:%M',
+    '%b %d %Y at %H:%M:%S',
+    '%B %d %Y at %H:%M',
+    '%B %d %Y at %H:%M:%S',
+)
+
+DATE_FORMATS_DAY_FIRST = list(DATE_FORMATS)
+DATE_FORMATS_DAY_FIRST.extend([
+    '%d-%m-%Y',
+    '%d.%m.%Y',
+    '%d.%m.%y',
+    '%d/%m/%Y',
+    '%d/%m/%y',
+    '%d/%m/%Y %H:%M:%S',
+])
+
+DATE_FORMATS_MONTH_FIRST = list(DATE_FORMATS)
+DATE_FORMATS_MONTH_FIRST.extend([
+    '%m-%d-%Y',
+    '%m.%d.%Y',
+    '%m/%d/%Y',
+    '%m/%d/%y',
+    '%m/%d/%Y %H:%M:%S',
+])
+
+PACKED_CODES_RE = r"}\('(.+)',(\d+),(\d+),'([^']+)'\.split\('\|'\)"
+JSON_LD_RE = r'(?is)'
+
+
 def preferredencoding():
     """Get preferred encoding.
 
@@ -173,149 +1785,249 @@ def preferredencoding():
     """
     try:
         pref = locale.getpreferredencoding()
-        u'TEST'.encode(pref)
-    except:
+        'TEST'.encode(pref)
+    except Exception:
         pref = 'UTF-8'
 
     return pref
 
-if sys.version_info < (3,0):
-    def compat_print(s):
-        print(s.encode(preferredencoding(), 'xmlcharrefreplace'))
-else:
-    def compat_print(s):
-        assert type(s) == type(u'')
-        print(s)
-
-# In Python 2.x, json.dump expects a bytestream.
-# In Python 3.x, it writes to a character stream
-if sys.version_info < (3,0):
-    def write_json_file(obj, fn):
-        with open(fn, 'wb') as f:
-            json.dump(obj, f)
+
+def write_json_file(obj, fn):
+    """ Encode obj as JSON and write it to fn, atomically if possible """
+
+    fn = encodeFilename(fn)
+    if sys.version_info < (3, 0) and sys.platform != 'win32':
+        encoding = get_filesystem_encoding()
+        # os.path.basename returns a bytes object, but NamedTemporaryFile
+        # will fail if the filename contains non ascii characters unless we
+        # use a unicode object
+        path_basename = lambda f: os.path.basename(fn).decode(encoding)
+        # the same for os.path.dirname
+        path_dirname = lambda f: os.path.dirname(fn).decode(encoding)
+    else:
+        path_basename = os.path.basename
+        path_dirname = os.path.dirname
+
+    args = {
+        'suffix': '.tmp',
+        'prefix': path_basename(fn) + '.',
+        'dir': path_dirname(fn),
+        'delete': False,
+    }
+
+    # In Python 2.x, json.dump expects a bytestream.
+    # In Python 3.x, it writes to a character stream
+    if sys.version_info < (3, 0):
+        args['mode'] = 'wb'
+    else:
+        args.update({
+            'mode': 'w',
+            'encoding': 'utf-8',
+        })
+
+    tf = tempfile.NamedTemporaryFile(**compat_kwargs(args))
+
+    try:
+        with tf:
+            json.dump(obj, tf)
+        if sys.platform == 'win32':
+            # Need to remove existing file on Windows, else os.rename raises
+            # WindowsError or FileExistsError.
+            try:
+                os.unlink(fn)
+            except OSError:
+                pass
+        try:
+            mask = os.umask(0)
+            os.umask(mask)
+            os.chmod(tf.name, 0o666 & ~mask)
+        except OSError:
+            pass
+        os.rename(tf.name, fn)
+    except Exception:
+        try:
+            os.remove(tf.name)
+        except OSError:
+            pass
+        raise
+
+
+if sys.version_info >= (2, 7):
+    def find_xpath_attr(node, xpath, key, val=None):
+        """ Find the xpath xpath[@key=val] """
+        assert re.match(r'^[a-zA-Z_-]+$', key)
+        expr = xpath + ('[@%s]' % key if val is None else "[@%s='%s']" % (key, val))
+        return node.find(expr)
 else:
-    def write_json_file(obj, fn):
-        with open(fn, 'w', encoding='utf-8') as f:
-            json.dump(obj, f)
+    def find_xpath_attr(node, xpath, key, val=None):
+        for f in node.findall(compat_xpath(xpath)):
+            if key not in f.attrib:
+                continue
+            if val is None or f.attrib.get(key) == val:
+                return f
+        return None
 
-def htmlentity_transform(matchobj):
-    """Transforms an HTML entity to a character.
+# On python2.6 the xml.etree.ElementTree.Element methods don't support
+# the namespace parameter
 
-    This function receives a match object and is intended to be used with
-    the re.sub() function.
-    """
-    entity = matchobj.group(1)
 
-    # Known non-numeric HTML entity
-    if entity in compat_html_entities.name2codepoint:
-        return compat_chr(compat_html_entities.name2codepoint[entity])
+def xpath_with_ns(path, ns_map):
+    components = [c.split(':') for c in path.split('/')]
+    replaced = []
+    for c in components:
+        if len(c) == 1:
+            replaced.append(c[0])
+        else:
+            ns, tag = c
+            replaced.append('{%s}%s' % (ns_map[ns], tag))
+    return '/'.join(replaced)
 
-    mobj = re.match(u'(?u)#(x?\\d+)', entity)
-    if mobj is not None:
-        numstr = mobj.group(1)
-        if numstr.startswith(u'x'):
-            base = 16
-            numstr = u'0%s' % numstr
+
+def xpath_element(node, xpath, name=None, fatal=False, default=NO_DEFAULT):
+    def _find_xpath(xpath):
+        return node.find(compat_xpath(xpath))
+
+    if isinstance(xpath, (str, compat_str)):
+        n = _find_xpath(xpath)
+    else:
+        for xp in xpath:
+            n = _find_xpath(xp)
+            if n is not None:
+                break
+
+    if n is None:
+        if default is not NO_DEFAULT:
+            return default
+        elif fatal:
+            name = xpath if name is None else name
+            raise ExtractorError('Could not find XML element %s' % name)
         else:
-            base = 10
-        return compat_chr(int(numstr, base))
+            return None
+    return n
 
-    # Unknown entity in name, return its literal representation
-    return (u'&%s;' % entity)
-
-compat_html_parser.locatestarttagend = re.compile(r"""<[a-zA-Z][-.a-zA-Z0-9:_]*(?:\s+(?:(?<=['"\s])[^\s/>][^\s/=>]*(?:\s*=+\s*(?:'[^']*'|"[^"]*"|(?!['"])[^>\s]*))?\s*)*)?\s*""", re.VERBOSE) # backport bugfix
-class AttrParser(compat_html_parser.HTMLParser):
-    """Modified HTMLParser that isolates a tag with the specified attribute"""
-    def __init__(self, attribute, value):
-        self.attribute = attribute
-        self.value = value
-        self.result = None
-        self.started = False
-        self.depth = {}
-        self.html = None
-        self.watch_startpos = False
-        self.error_count = 0
-        compat_html_parser.HTMLParser.__init__(self)
-
-    def error(self, message):
-        if self.error_count > 10 or self.started:
-            raise compat_html_parser.HTMLParseError(message, self.getpos())
-        self.rawdata = '\n'.join(self.html.split('\n')[self.getpos()[0]:]) # skip one line
-        self.error_count += 1
-        self.goahead(1)
-
-    def loads(self, html):
-        self.html = html
-        self.feed(html)
-        self.close()
 
-    def handle_starttag(self, tag, attrs):
-        attrs = dict(attrs)
-        if self.started:
-            self.find_startpos(None)
-        if self.attribute in attrs and attrs[self.attribute] == self.value:
-            self.result = [tag]
-            self.started = True
-            self.watch_startpos = True
-        if self.started:
-            if not tag in self.depth: self.depth[tag] = 0
-            self.depth[tag] += 1
-
-    def handle_endtag(self, tag):
-        if self.started:
-            if tag in self.depth: self.depth[tag] -= 1
-            if self.depth[self.result[0]] == 0:
-                self.started = False
-                self.result.append(self.getpos())
-
-    def find_startpos(self, x):
-        """Needed to put the start position of the result (self.result[1])
-        after the opening tag with the requested id"""
-        if self.watch_startpos:
-            self.watch_startpos = False
-            self.result.append(self.getpos())
-    handle_entityref = handle_charref = handle_data = handle_comment = \
-    handle_decl = handle_pi = unknown_decl = find_startpos
-
-    def get_result(self):
-        if self.result is None:
+def xpath_text(node, xpath, name=None, fatal=False, default=NO_DEFAULT):
+    n = xpath_element(node, xpath, name, fatal=fatal, default=default)
+    if n is None or n == default:
+        return n
+    if n.text is None:
+        if default is not NO_DEFAULT:
+            return default
+        elif fatal:
+            name = xpath if name is None else name
+            raise ExtractorError('Could not find XML element\'s text %s' % name)
+        else:
             return None
-        if len(self.result) != 3:
+    return n.text
+
+
+def xpath_attr(node, xpath, key, name=None, fatal=False, default=NO_DEFAULT):
+    n = find_xpath_attr(node, xpath, key)
+    if n is None:
+        if default is not NO_DEFAULT:
+            return default
+        elif fatal:
+            name = '%s[@%s]' % (xpath, key) if name is None else name
+            raise ExtractorError('Could not find XML attribute %s' % name)
+        else:
             return None
-        lines = self.html.split('\n')
-        lines = lines[self.result[1][0]-1:self.result[2][0]]
-        lines[0] = lines[0][self.result[1][1]:]
-        if len(lines) == 1:
-            lines[-1] = lines[-1][:self.result[2][1]-self.result[1][1]]
-        lines[-1] = lines[-1][:self.result[2][1]]
-        return '\n'.join(lines).strip()
-# Hack for https://github.com/rg3/youtube-dl/issues/662
-if sys.version_info < (2, 7, 3):
-    AttrParser.parse_endtag = (lambda self, i:
-        i + len("")
-        if self.rawdata[i:].startswith("")
-        else compat_html_parser.HTMLParser.parse_endtag(self, i))
+    return n.attrib[key]
+
 
 def get_element_by_id(id, html):
     """Return the content of the tag with the specified ID in the passed HTML document"""
-    return get_element_by_attribute("id", id, html)
+    return get_element_by_attribute('id', id, html)
 
-def get_element_by_attribute(attribute, value, html):
+
+def get_element_by_class(class_name, html):
+    """Return the content of the first tag with the specified class in the passed HTML document"""
+    retval = get_elements_by_class(class_name, html)
+    return retval[0] if retval else None
+
+
+def get_element_by_attribute(attribute, value, html, escape_value=True):
+    retval = get_elements_by_attribute(attribute, value, html, escape_value)
+    return retval[0] if retval else None
+
+
+def get_elements_by_class(class_name, html):
+    """Return the content of all tags with the specified class in the passed HTML document as a list"""
+    return get_elements_by_attribute(
+        'class', r'[^\'"]*\b%s\b[^\'"]*' % re.escape(class_name),
+        html, escape_value=False)
+
+
+def get_elements_by_attribute(attribute, value, html, escape_value=True):
     """Return the content of the tag with the specified attribute in the passed HTML document"""
-    parser = AttrParser(attribute, value)
+
+    value = re.escape(value) if escape_value else value
+
+    retlist = []
+    for m in re.finditer(r'''(?xs)
+        <([a-zA-Z0-9:._-]+)
+         (?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]*|="[^"]*"|='[^']*'|))*?
+         \s+%s=['"]?%s['"]?
+         (?:\s+[a-zA-Z0-9:._-]+(?:=[a-zA-Z0-9:._-]*|="[^"]*"|='[^']*'|))*?
+        \s*>
+        (?P.*?)
+        \1>
+    ''' % (re.escape(attribute), value), html):
+        res = m.group('content')
+
+        if res.startswith('"') or res.startswith("'"):
+            res = res[1:-1]
+
+        retlist.append(unescapeHTML(res))
+
+    return retlist
+
+
+class HTMLAttributeParser(compat_HTMLParser):
+    """Trivial HTML parser to gather the attributes for a single element"""
+    def __init__(self):
+        self.attrs = {}
+        compat_HTMLParser.__init__(self)
+
+    def handle_starttag(self, tag, attrs):
+        self.attrs = dict(attrs)
+
+
+def extract_attributes(html_element):
+    """Given a string for an HTML element such as
+    
+    Decode and return a dictionary of attributes.
+    {
+        'a': 'foo', 'b': 'bar', c: 'baz', d: 'boz',
+        'empty': '', 'noval': None, 'entity': '&',
+        'sq': '"', 'dq': '\''
+    }.
+    NB HTMLParser is stricter in Python 2.6 & 3.2 than in later versions,
+    but the cases in the unit test will work for all of 2.6, 2.7, 3.2-3.5.
+    """
+    parser = HTMLAttributeParser()
     try:
-        parser.loads(html)
-    except compat_html_parser.HTMLParseError:
+        parser.feed(html_element)
+        parser.close()
+    # Older Python may throw HTMLParseError in case of malformed HTML
+    except compat_HTMLParseError:
         pass
-    return parser.get_result()
+    return parser.attrs
 
 
 def clean_html(html):
     """Clean an HTML snippet into a readable string"""
+
+    if html is None:  # Convenience for sanitizing descriptions etc.
+        return html
+
     # Newline vs 
     html = html.replace('\n', ' ')
-    html = re.sub(r'\s*<\s*br\s*/?\s*>\s*', '\n', html)
-    html = re.sub(r'<\s*/\s*p\s*>\s*<\s*p[^>]*>', '\n', html)
+    html = re.sub(r'(?u)\s*<\s*br\s*/?\s*>\s*', '\n', html)
+    html = re.sub(r'(?u)<\s*/\s*p\s*>\s*<\s*p[^>]*>', '\n', html)
     # Strip html tags
     html = re.sub('<.*?>', '', html)
     # Replace html entities
@@ -334,7 +2046,7 @@ def sanitize_open(filename, open_mode):
     It returns the tuple (stream, definitive_file_name).
     """
     try:
-        if filename == u'-':
+        if filename == '-':
             if sys.platform == 'win32':
                 import msvcrt
                 msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
@@ -346,15 +2058,12 @@ def sanitize_open(filename, open_mode):
             raise
 
         # In case of error, try to remove win32 forbidden chars
-        alt_filename = os.path.join(
-                        re.sub(u'[/<>:"\\|\\\\?\\*]', u'#', path_part)
-                        for path_part in os.path.split(filename)
-                       )
+        alt_filename = sanitize_path(filename)
         if alt_filename == filename:
             raise
         else:
             # An exception here should be caught in the caller
-            stream = open(encodeFilename(filename), open_mode)
+            stream = open(encodeFilename(alt_filename), open_mode)
             return (stream, alt_filename)
 
 
@@ -366,12 +2075,16 @@ def timeconvert(timestr):
         timestamp = email.utils.mktime_tz(timetuple)
     return timestamp
 
+
 def sanitize_filename(s, restricted=False, is_id=False):
     """Sanitizes a string so it could be used as part of a filename.
     If restricted is set, use a stricter subset of allowed characters.
-    Set is_id if this is not an arbitrary string, but an ID that should be kept if possible
+    Set is_id if this is not an arbitrary string, but an ID that should be kept
+    if possible.
     """
     def replace_insane(char):
+        if restricted and char in ACCENT_CHARS:
+            return ACCENT_CHARS[char]
         if char == '?' or ord(char) < 32 or ord(char) == 127:
             return ''
         elif char == '"':
@@ -386,7 +2099,9 @@ def sanitize_filename(s, restricted=False, is_id=False):
             return '_'
         return char
 
-    result = u''.join(map(replace_insane, s))
+    # Handle timestamps
+    s = re.sub(r'[0-9]+(?::[0-9]+)+', lambda m: m.group(0).replace(':', '_'), s)
+    result = ''.join(map(replace_insane, s))
     if not is_id:
         while '__' in result:
             result = result.replace('__', '_')
@@ -394,10 +2109,59 @@ def sanitize_filename(s, restricted=False, is_id=False):
         # Common case of "Foreign band name - English song title"
         if restricted and result.startswith('-_'):
             result = result[2:]
+        if result.startswith('-'):
+            result = '_' + result[len('-'):]
+        result = result.lstrip('.')
         if not result:
             result = '_'
     return result
 
+
+def sanitize_path(s):
+    """Sanitizes and normalizes path on Windows"""
+    if sys.platform != 'win32':
+        return s
+    drive_or_unc, _ = os.path.splitdrive(s)
+    if sys.version_info < (2, 7) and not drive_or_unc:
+        drive_or_unc, _ = os.path.splitunc(s)
+    norm_path = os.path.normpath(remove_start(s, drive_or_unc)).split(os.path.sep)
+    if drive_or_unc:
+        norm_path.pop(0)
+    sanitized_path = [
+        path_part if path_part in ['.', '..'] else re.sub(r'(?:[/<>:"\|\\?\*]|[\s.]$)', '#', path_part)
+        for path_part in norm_path]
+    if drive_or_unc:
+        sanitized_path.insert(0, drive_or_unc + os.path.sep)
+    return os.path.join(*sanitized_path)
+
+
+def sanitize_url(url):
+    # Prepend protocol-less URLs with `http:` scheme in order to mitigate
+    # the number of unwanted failures due to missing protocol
+    if url.startswith('//'):
+        return 'http:%s' % url
+    # Fix some common typos seen so far
+    COMMON_TYPOS = (
+        # https://github.com/ytdl-org/youtube-dl/issues/15649
+        (r'^httpss://', r'https://'),
+        # https://bx1.be/lives/direct-tv/
+        (r'^rmtp([es]?)://', r'rtmp\1://'),
+    )
+    for mistake, fixup in COMMON_TYPOS:
+        if re.match(mistake, url):
+            return re.sub(mistake, fixup, url)
+    return url
+
+
+def sanitized_Request(url, *args, **kwargs):
+    return compat_urllib_request.Request(sanitize_url(url), *args, **kwargs)
+
+
+def expand_path(s):
+    """Expand shell variables and ~"""
+    return os.path.expandvars(compat_expanduser(s))
+
+
 def orderedSet(iterable):
     """ Remove all duplicates from the input iterable """
     res = []
@@ -406,36 +2170,106 @@ def orderedSet(iterable):
             res.append(el)
     return res
 
+
+def _htmlentity_transform(entity_with_semicolon):
+    """Transforms an HTML entity to a character."""
+    entity = entity_with_semicolon[:-1]
+
+    # Known non-numeric HTML entity
+    if entity in compat_html_entities.name2codepoint:
+        return compat_chr(compat_html_entities.name2codepoint[entity])
+
+    # TODO: HTML5 allows entities without a semicolon. For example,
+    # 'Éric' should be decoded as 'Ãric'.
+    if entity_with_semicolon in compat_html_entities_html5:
+        return compat_html_entities_html5[entity_with_semicolon]
+
+    mobj = re.match(r'#(x[0-9a-fA-F]+|[0-9]+)', entity)
+    if mobj is not None:
+        numstr = mobj.group(1)
+        if numstr.startswith('x'):
+            base = 16
+            numstr = '0%s' % numstr
+        else:
+            base = 10
+        # See https://github.com/ytdl-org/youtube-dl/issues/7518
+        try:
+            return compat_chr(int(numstr, base))
+        except ValueError:
+            pass
+
+    # Unknown entity in name, return its literal representation
+    return '&%s;' % entity
+
+
 def unescapeHTML(s):
-    """
-    @param s a string
-    """
-    assert type(s) == type(u'')
+    if s is None:
+        return None
+    assert type(s) == compat_str
 
-    result = re.sub(u'(?u)&(.+?);', htmlentity_transform, s)
-    return result
+    return re.sub(
+        r'&([^&;]+;)', lambda m: _htmlentity_transform(m.group(1)), s)
+
+
+def get_subprocess_encoding():
+    if sys.platform == 'win32' and sys.getwindowsversion()[0] >= 5:
+        # For subprocess calls, encode with locale encoding
+        # Refer to http://stackoverflow.com/a/9951851/35070
+        encoding = preferredencoding()
+    else:
+        encoding = sys.getfilesystemencoding()
+    if encoding is None:
+        encoding = 'utf-8'
+    return encoding
 
-def encodeFilename(s):
+
+def encodeFilename(s, for_subprocess=False):
     """
     @param s The name of the file
     """
 
-    assert type(s) == type(u'')
+    assert type(s) == compat_str
 
     # Python 3 has a Unicode API
     if sys.version_info >= (3, 0):
         return s
 
-    if sys.platform == 'win32' and sys.getwindowsversion()[0] >= 5:
-        # Pass u'' directly to use Unicode APIs on Windows 2000 and up
-        # (Detecting Windows NT 4 is tricky because 'major >= 4' would
-        # match Windows 9x series as well. Besides, NT 4 is obsolete.)
+    # Pass '' directly to use Unicode APIs on Windows 2000 and up
+    # (Detecting Windows NT 4 is tricky because 'major >= 4' would
+    # match Windows 9x series as well. Besides, NT 4 is obsolete.)
+    if not for_subprocess and sys.platform == 'win32' and sys.getwindowsversion()[0] >= 5:
         return s
-    else:
-        encoding = sys.getfilesystemencoding()
-        if encoding is None:
-            encoding = 'utf-8'
-        return s.encode(encoding, 'ignore')
+
+    # Jython assumes filenames are Unicode strings though reported as Python 2.x compatible
+    if sys.platform.startswith('java'):
+        return s
+
+    return s.encode(get_subprocess_encoding(), 'ignore')
+
+
+def decodeFilename(b, for_subprocess=False):
+
+    if sys.version_info >= (3, 0):
+        return b
+
+    if not isinstance(b, bytes):
+        return b
+
+    return b.decode(get_subprocess_encoding(), 'ignore')
+
+
+def encodeArgument(s):
+    if not isinstance(s, compat_str):
+        # Legacy code that uses byte strings
+        # Uncomment the following line after fixing all post processors
+        # assert False, 'Internal error: %r should be of type %r, is %r' % (s, compat_str, type(s))
+        s = s.decode('ascii')
+    return encodeFilename(s, True)
+
+
+def decodeArgument(b):
+    return decodeFilename(b, True)
+
 
 def decodeOption(optval):
     if optval is None:
@@ -446,6 +2280,7 @@ def decodeOption(optval):
     assert isinstance(optval, compat_str)
     return optval
 
+
 def formatSeconds(secs):
     if secs > 3600:
         return '%d:%02d:%02d' % (secs // 3600, (secs % 3600) // 60, secs % 60)
@@ -454,56 +2289,116 @@ def formatSeconds(secs):
     else:
         return '%d' % secs
 
-def make_HTTPS_handler(opts):
-    if sys.version_info < (3,2):
-        # Python's 2.x handler is very simplistic
-        return compat_urllib_request.HTTPSHandler()
-    else:
-        import ssl
-        context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
-        context.set_default_verify_paths()
-        
+
+def make_HTTPS_handler(params, **kwargs):
+    opts_no_check_certificate = params.get('nocheckcertificate', False)
+    if hasattr(ssl, 'create_default_context'):  # Python >= 3.4 or 2.7.9
+        context = ssl.create_default_context(ssl.Purpose.SERVER_AUTH)
+        if opts_no_check_certificate:
+            context.check_hostname = False
+            context.verify_mode = ssl.CERT_NONE
+        try:
+            return YoutubeDLHTTPSHandler(params, context=context, **kwargs)
+        except TypeError:
+            # Python 2.7.8
+            # (create_default_context present but HTTPSHandler has no context=)
+            pass
+
+    if sys.version_info < (3, 2):
+        return YoutubeDLHTTPSHandler(params, **kwargs)
+    else:  # Python < 3.4
+        context = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
         context.verify_mode = (ssl.CERT_NONE
-                               if opts.no_check_certificate
+                               if opts_no_check_certificate
                                else ssl.CERT_REQUIRED)
-        return compat_urllib_request.HTTPSHandler(context=context)
+        context.set_default_verify_paths()
+        return YoutubeDLHTTPSHandler(params, context=context, **kwargs)
+
+
+def bug_reports_message():
+    if ytdl_is_updateable():
+        update_cmd = 'type  youtube-dl -U  to update'
+    else:
+        update_cmd = 'see  https://yt-dl.org/update  on how to update'
+    msg = '; please report this issue on https://yt-dl.org/bug .'
+    msg += ' Make sure you are using the latest version; %s.' % update_cmd
+    msg += ' Be sure to call youtube-dl with the --verbose flag and include its complete output.'
+    return msg
+
 
-class ExtractorError(Exception):
+class YoutubeDLError(Exception):
+    """Base exception for YoutubeDL errors."""
+    pass
+
+
+class ExtractorError(YoutubeDLError):
     """Error during info extraction."""
-    def __init__(self, msg, tb=None, expected=False):
+
+    def __init__(self, msg, tb=None, expected=False, cause=None, video_id=None):
         """ tb, if given, is the original traceback (so that it can be printed out).
         If expected is set, this is a normal error message and most likely not a bug in youtube-dl.
         """
 
         if sys.exc_info()[0] in (compat_urllib_error.URLError, socket.timeout, UnavailableVideoError):
             expected = True
+        if video_id is not None:
+            msg = video_id + ': ' + msg
+        if cause:
+            msg += ' (caused by %r)' % cause
         if not expected:
-            msg = msg + u'; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output.'
+            msg += bug_reports_message()
         super(ExtractorError, self).__init__(msg)
 
         self.traceback = tb
         self.exc_info = sys.exc_info()  # preserve original exception
+        self.cause = cause
+        self.video_id = video_id
 
     def format_traceback(self):
         if self.traceback is None:
             return None
-        return u''.join(traceback.format_tb(self.traceback))
+        return ''.join(traceback.format_tb(self.traceback))
+
+
+class UnsupportedError(ExtractorError):
+    def __init__(self, url):
+        super(UnsupportedError, self).__init__(
+            'Unsupported URL: %s' % url, expected=True)
+        self.url = url
+
+
+class RegexNotFoundError(ExtractorError):
+    """Error when a regex didn't match"""
+    pass
+
+
+class GeoRestrictedError(ExtractorError):
+    """Geographic restriction Error exception.
+
+    This exception may be thrown when a video is not available from your
+    geographic location due to geographic restrictions imposed by a website.
+    """
+    def __init__(self, msg, countries=None):
+        super(GeoRestrictedError, self).__init__(msg, expected=True)
+        self.msg = msg
+        self.countries = countries
 
 
-class DownloadError(Exception):
+class DownloadError(YoutubeDLError):
     """Download Error exception.
 
     This exception may be thrown by FileDownloader objects if they are not
     configured to continue on errors. They will contain the appropriate
     error message.
     """
+
     def __init__(self, msg, exc_info=None):
         """ exc_info, if given, is the original exception that caused the trouble (as returned by sys.exc_info()). """
         super(DownloadError, self).__init__(msg)
         self.exc_info = exc_info
 
 
-class SameFileError(Exception):
+class SameFileError(YoutubeDLError):
     """Same File exception.
 
     This exception will be thrown by FileDownloader objects if they detect
@@ -512,21 +2407,24 @@ class SameFileError(Exception):
     pass
 
 
-class PostProcessingError(Exception):
+class PostProcessingError(YoutubeDLError):
     """Post Processing exception.
 
     This exception may be raised by PostProcessor's .run() method to
     indicate an error in the postprocessing task.
     """
+
     def __init__(self, msg):
+        super(PostProcessingError, self).__init__(msg)
         self.msg = msg
 
-class MaxDownloadsReached(Exception):
+
+class MaxDownloadsReached(YoutubeDLError):
     """ --max-downloads limit has been reached. """
     pass
 
 
-class UnavailableVideoError(Exception):
+class UnavailableVideoError(YoutubeDLError):
     """Unavailable Format exception.
 
     This exception will be thrown when a video is requested
@@ -535,21 +2433,118 @@ class UnavailableVideoError(Exception):
     pass
 
 
-class ContentTooShortError(Exception):
+class ContentTooShortError(YoutubeDLError):
     """Content Too Short exception.
 
     This exception may be raised by FileDownloader objects when a file they
     download is too small for what the server announced first, indicating
     the connection was probably interrupted.
     """
-    # Both in bytes
-    downloaded = None
-    expected = None
 
     def __init__(self, downloaded, expected):
+        super(ContentTooShortError, self).__init__(
+            'Downloaded {0} bytes, expected {1} bytes'.format(downloaded, expected)
+        )
+        # Both in bytes
         self.downloaded = downloaded
         self.expected = expected
 
+
+class XAttrMetadataError(YoutubeDLError):
+    def __init__(self, code=None, msg='Unknown error'):
+        super(XAttrMetadataError, self).__init__(msg)
+        self.code = code
+        self.msg = msg
+
+        # Parsing code and msg
+        if (self.code in (errno.ENOSPC, errno.EDQUOT)
+                or 'No space left' in self.msg or 'Disk quota excedded' in self.msg):
+            self.reason = 'NO_SPACE'
+        elif self.code == errno.E2BIG or 'Argument list too long' in self.msg:
+            self.reason = 'VALUE_TOO_LONG'
+        else:
+            self.reason = 'NOT_SUPPORTED'
+
+
+class XAttrUnavailableError(YoutubeDLError):
+    pass
+
+
+def _create_http_connection(ydl_handler, http_class, is_https, *args, **kwargs):
+    # Working around python 2 bug (see http://bugs.python.org/issue17849) by limiting
+    # expected HTTP responses to meet HTTP/1.0 or later (see also
+    # https://github.com/ytdl-org/youtube-dl/issues/6727)
+    if sys.version_info < (3, 0):
+        kwargs['strict'] = True
+    hc = http_class(*args, **compat_kwargs(kwargs))
+    source_address = ydl_handler._params.get('source_address')
+
+    if source_address is not None:
+        # This is to workaround _create_connection() from socket where it will try all
+        # address data from getaddrinfo() including IPv6. This filters the result from
+        # getaddrinfo() based on the source_address value.
+        # This is based on the cpython socket.create_connection() function.
+        # https://github.com/python/cpython/blob/master/Lib/socket.py#L691
+        def _create_connection(address, timeout=socket._GLOBAL_DEFAULT_TIMEOUT, source_address=None):
+            host, port = address
+            err = None
+            addrs = socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM)
+            af = socket.AF_INET if '.' in source_address[0] else socket.AF_INET6
+            ip_addrs = [addr for addr in addrs if addr[0] == af]
+            if addrs and not ip_addrs:
+                ip_version = 'v4' if af == socket.AF_INET else 'v6'
+                raise socket.error(
+                    "No remote IP%s addresses available for connect, can't use '%s' as source address"
+                    % (ip_version, source_address[0]))
+            for res in ip_addrs:
+                af, socktype, proto, canonname, sa = res
+                sock = None
+                try:
+                    sock = socket.socket(af, socktype, proto)
+                    if timeout is not socket._GLOBAL_DEFAULT_TIMEOUT:
+                        sock.settimeout(timeout)
+                    sock.bind(source_address)
+                    sock.connect(sa)
+                    err = None  # Explicitly break reference cycle
+                    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')
+        if hasattr(hc, '_create_connection'):
+            hc._create_connection = _create_connection
+        sa = (source_address, 0)
+        if hasattr(hc, 'source_address'):  # Python 2.7+
+            hc.source_address = sa
+        else:  # Python 2.6
+            def _hc_connect(self, *args, **kwargs):
+                sock = _create_connection(
+                    (self.host, self.port), self.timeout, sa)
+                if is_https:
+                    self.sock = ssl.wrap_socket(
+                        sock, self.key_file, self.cert_file,
+                        ssl_version=ssl.PROTOCOL_TLSv1)
+                else:
+                    self.sock = sock
+            hc.connect = functools.partial(_hc_connect, hc)
+
+    return hc
+
+
+def handle_youtubedl_headers(headers):
+    filtered_headers = headers
+
+    if 'Youtubedl-no-compression' in filtered_headers:
+        filtered_headers = dict((k, v) for k, v in filtered_headers.items() if k.lower() != 'accept-encoding')
+        del filtered_headers['Youtubedl-no-compression']
+
+    return filtered_headers
+
+
 class YoutubeDLHandler(compat_urllib_request.HTTPHandler):
     """Handler for HTTP requests and responses.
 
@@ -557,7 +2552,7 @@ class YoutubeDLHandler(compat_urllib_request.HTTPHandler):
     the standard headers to every HTTP request and handles gzipped and
     deflated responses from web servers. If compression is to be avoided in
     a particular request, the original request in the program code only has
-    to include the HTTP header "Youtubedl-No-Compression", which will be
+    to include the HTTP header "Youtubedl-no-compression", which will be
     removed before making the real request.
 
     Part of this code was copied from:
@@ -568,6 +2563,22 @@ class YoutubeDLHandler(compat_urllib_request.HTTPHandler):
     public domain.
     """
 
+    def __init__(self, params, *args, **kwargs):
+        compat_urllib_request.HTTPHandler.__init__(self, *args, **kwargs)
+        self._params = params
+
+    def http_open(self, req):
+        conn_class = compat_http_client.HTTPConnection
+
+        socks_proxy = req.headers.get('Ytdl-socks-proxy')
+        if socks_proxy:
+            conn_class = make_socks_conn_class(conn_class, socks_proxy)
+            del req.headers['Ytdl-socks-proxy']
+
+        return self.do_open(functools.partial(
+            _create_http_connection, self, conn_class, False),
+            req)
+
     @staticmethod
     def deflate(data):
         try:
@@ -575,94 +2586,472 @@ class YoutubeDLHandler(compat_urllib_request.HTTPHandler):
         except zlib.error:
             return zlib.decompress(data)
 
-    @staticmethod
-    def addinfourl_wrapper(stream, headers, url, code):
-        if hasattr(compat_urllib_request.addinfourl, 'getcode'):
-            return compat_urllib_request.addinfourl(stream, headers, url, code)
-        ret = compat_urllib_request.addinfourl(stream, headers, url)
-        ret.code = code
-        return ret
-
     def http_request(self, req):
-        for h,v in std_headers.items():
-            if h in req.headers:
-                del req.headers[h]
-            req.add_header(h, v)
-        if 'Youtubedl-no-compression' in req.headers:
-            if 'Accept-encoding' in req.headers:
-                del req.headers['Accept-encoding']
-            del req.headers['Youtubedl-no-compression']
-        if 'Youtubedl-user-agent' in req.headers:
-            if 'User-agent' in req.headers:
-                del req.headers['User-agent']
-            req.headers['User-agent'] = req.headers['Youtubedl-user-agent']
-            del req.headers['Youtubedl-user-agent']
+        # According to RFC 3986, URLs can not contain non-ASCII characters, however this is not
+        # always respected by websites, some tend to give out URLs with non percent-encoded
+        # non-ASCII characters (see telemb.py, ard.py [#3412])
+        # urllib chokes on URLs with non-ASCII characters (see http://bugs.python.org/issue3991)
+        # To work around aforementioned issue we will replace request's original URL with
+        # percent-encoded one
+        # Since redirects are also affected (e.g. http://www.southpark.de/alle-episoden/s18e09)
+        # the code of this workaround has been moved here from YoutubeDL.urlopen()
+        url = req.get_full_url()
+        url_escaped = escape_url(url)
+
+        # Substitute URL if any change after escaping
+        if url != url_escaped:
+            req = update_Request(req, url=url_escaped)
+
+        for h, v in std_headers.items():
+            # Capitalize is needed because of Python bug 2275: http://bugs.python.org/issue2275
+            # The dict keys are capitalized because of this bug by urllib
+            if h.capitalize() not in req.headers:
+                req.add_header(h, v)
+
+        req.headers = handle_youtubedl_headers(req.headers)
+
+        if sys.version_info < (2, 7) and '#' in req.get_full_url():
+            # Python 2.6 is brain-dead when it comes to fragments
+            req._Request__original = req._Request__original.partition('#')[0]
+            req._Request__r_type = req._Request__r_type.partition('#')[0]
+
         return req
 
     def http_response(self, req, resp):
         old_resp = resp
         # gzip
         if resp.headers.get('Content-encoding', '') == 'gzip':
-            gz = gzip.GzipFile(fileobj=io.BytesIO(resp.read()), mode='r')
-            resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
+            content = resp.read()
+            gz = gzip.GzipFile(fileobj=io.BytesIO(content), mode='rb')
+            try:
+                uncompressed = io.BytesIO(gz.read())
+            except IOError as original_ioerror:
+                # There may be junk add the end of the file
+                # See http://stackoverflow.com/q/4928560/35070 for details
+                for i in range(1, 1024):
+                    try:
+                        gz = gzip.GzipFile(fileobj=io.BytesIO(content[:-i]), mode='rb')
+                        uncompressed = io.BytesIO(gz.read())
+                    except IOError:
+                        continue
+                    break
+                else:
+                    raise original_ioerror
+            resp = compat_urllib_request.addinfourl(uncompressed, old_resp.headers, old_resp.url, old_resp.code)
             resp.msg = old_resp.msg
+            del resp.headers['Content-encoding']
         # deflate
         if resp.headers.get('Content-encoding', '') == 'deflate':
             gz = io.BytesIO(self.deflate(resp.read()))
-            resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
+            resp = compat_urllib_request.addinfourl(gz, old_resp.headers, old_resp.url, old_resp.code)
             resp.msg = old_resp.msg
+            del resp.headers['Content-encoding']
+        # Percent-encode redirect URL of Location HTTP header to satisfy RFC 3986 (see
+        # https://github.com/ytdl-org/youtube-dl/issues/6457).
+        if 300 <= resp.code < 400:
+            location = resp.headers.get('Location')
+            if location:
+                # As of RFC 2616 default charset is iso-8859-1 that is respected by python 3
+                if sys.version_info >= (3, 0):
+                    location = location.encode('iso-8859-1').decode('utf-8')
+                else:
+                    location = location.decode('utf-8')
+                location_escaped = escape_url(location)
+                if location != location_escaped:
+                    del resp.headers['Location']
+                    if sys.version_info < (3, 0):
+                        location_escaped = location_escaped.encode('utf-8')
+                    resp.headers['Location'] = location_escaped
         return resp
 
     https_request = http_request
     https_response = http_response
 
-def unified_strdate(date_str):
-    """Return a string with the date in the format YYYYMMDD"""
-    upload_date = None
-    #Replace commas
-    date_str = date_str.replace(',',' ')
-    # %z (UTC offset) is only supported in python>=3.2
-    date_str = re.sub(r' (\+|-)[\d]*$', '', date_str)
-    format_expressions = ['%d %B %Y', '%B %d %Y', '%b %d %Y', '%Y-%m-%d', '%d/%m/%Y', '%Y/%m/%d %H:%M:%S']
-    for expression in format_expressions:
-        try:
-            upload_date = datetime.datetime.strptime(date_str, expression).strftime('%Y%m%d')
-        except:
-            pass
-    return upload_date
 
-def date_from_str(date_str):
+def make_socks_conn_class(base_class, socks_proxy):
+    assert issubclass(base_class, (
+        compat_http_client.HTTPConnection, compat_http_client.HTTPSConnection))
+
+    url_components = compat_urlparse.urlparse(socks_proxy)
+    if url_components.scheme.lower() == 'socks5':
+        socks_type = ProxyType.SOCKS5
+    elif url_components.scheme.lower() in ('socks', 'socks4'):
+        socks_type = ProxyType.SOCKS4
+    elif url_components.scheme.lower() == 'socks4a':
+        socks_type = ProxyType.SOCKS4A
+
+    def unquote_if_non_empty(s):
+        if not s:
+            return s
+        return compat_urllib_parse_unquote_plus(s)
+
+    proxy_args = (
+        socks_type,
+        url_components.hostname, url_components.port or 1080,
+        True,  # Remote DNS
+        unquote_if_non_empty(url_components.username),
+        unquote_if_non_empty(url_components.password),
+    )
+
+    class SocksConnection(base_class):
+        def connect(self):
+            self.sock = sockssocket()
+            self.sock.setproxy(*proxy_args)
+            if type(self.timeout) in (int, float):
+                self.sock.settimeout(self.timeout)
+            self.sock.connect((self.host, self.port))
+
+            if isinstance(self, compat_http_client.HTTPSConnection):
+                if hasattr(self, '_context'):  # Python > 2.6
+                    self.sock = self._context.wrap_socket(
+                        self.sock, server_hostname=self.host)
+                else:
+                    self.sock = ssl.wrap_socket(self.sock)
+
+    return SocksConnection
+
+
+class YoutubeDLHTTPSHandler(compat_urllib_request.HTTPSHandler):
+    def __init__(self, params, https_conn_class=None, *args, **kwargs):
+        compat_urllib_request.HTTPSHandler.__init__(self, *args, **kwargs)
+        self._https_conn_class = https_conn_class or compat_http_client.HTTPSConnection
+        self._params = params
+
+    def https_open(self, req):
+        kwargs = {}
+        conn_class = self._https_conn_class
+
+        if hasattr(self, '_context'):  # python > 2.6
+            kwargs['context'] = self._context
+        if hasattr(self, '_check_hostname'):  # python 3.x
+            kwargs['check_hostname'] = self._check_hostname
+
+        socks_proxy = req.headers.get('Ytdl-socks-proxy')
+        if socks_proxy:
+            conn_class = make_socks_conn_class(conn_class, socks_proxy)
+            del req.headers['Ytdl-socks-proxy']
+
+        return self.do_open(functools.partial(
+            _create_http_connection, self, conn_class, True),
+            req, **kwargs)
+
+
+class YoutubeDLCookieJar(compat_cookiejar.MozillaCookieJar):
     """
-    Return a datetime object from a string in the format YYYYMMDD or
-    (now|today)[+-][0-9](day|week|month|year)(s)?"""
-    today = datetime.date.today()
-    if date_str == 'now'or date_str == 'today':
-        return today
-    match = re.match('(now|today)(?P[+-])(?P