X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/216a0cb32fd479f712fb935fb877aa1aebce7426..5920ef2b4969021b7f83d154b325036d9b598877:/youtube_dl/utils.py?ds=inline
diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 922e17e..e84d35d 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -1,354 +1,3955 @@
#!/usr/bin/env python
-# -*- coding: utf-8 -*-
+# coding: utf-8
+from __future__ import unicode_literals
+
+import base64
+import binascii
+import calendar
+import codecs
+import contextlib
+import ctypes
+import datetime
+import email.utils
+import email.header
+import errno
+import functools
import gzip
-import htmlentitydefs
-import HTMLParser
+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 traceback
+import xml.etree.ElementTree
import zlib
-import urllib2
-import email.utils
-import json
-try:
- import cStringIO as StringIO
-except ImportError:
- import StringIO
+from .compat import (
+ compat_HTMLParseError,
+ compat_HTMLParser,
+ compat_basestring,
+ compat_chr,
+ compat_ctypes_WINFUNCTYPE,
+ compat_etree_fromstring,
+ compat_expanduser,
+ compat_html_entities,
+ compat_html_entities_html5,
+ compat_http_client,
+ 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,
+)
+
+from .socks import (
+ ProxyType,
+ sockssocket,
+)
+
+
+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(''))
std_headers = {
- 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:5.0.1) Gecko/20100101 Firefox/5.0.1',
- '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-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:59.0) Gecko/20100101 Firefox/59.0',
+ '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
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÅÃÅÃÃÃÃÅ°ÃÃÃà áâãäåæçèéêëìÃîïðñòóôõöÅøÅùúûüűýþÿ',
+ itertools.chain('AAAAAA', ['AE'], 'CEEEEIIIIDNOOOOOOO', ['OE'], 'UUUUUYP', ['ss'],
+ 'aaaaaa', ['ae'], 'ceeeeiiiionooooooo', ['oe'], 'uuuuuypy')))
+
+DATE_FORMATS = (
+ '%d %B %Y',
+ '%d %b %Y',
+ '%B %d %Y',
+ '%B %dst %Y',
+ '%B %dnd %Y',
+ '%B %dth %Y',
+ '%b %d %Y',
+ '%b %dst %Y',
+ '%b %dnd %Y',
+ '%b %dth %Y',
+ '%b %dst %Y %I:%M',
+ '%b %dnd %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.
-
- Returns the best encoding scheme for the system, based on
- locale.getpreferredencoding() and some further tweaks.
- """
- def yield_preferredencoding():
- try:
- pref = locale.getpreferredencoding()
- u'TEST'.encode(pref)
- except:
- pref = 'UTF-8'
- while True:
- yield pref
- return yield_preferredencoding().next()
-
-
-def htmlentity_transform(matchobj):
- """Transforms an HTML entity to a Unicode character.
-
- 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 htmlentitydefs.name2codepoint:
- return unichr(htmlentitydefs.name2codepoint[entity])
-
- # Unicode character
- mobj = re.match(ur'(?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
- else:
- base = 10
- return unichr(long(numstr, base))
-
- # Unknown entity in name, return its literal representation
- return (u'&%s;' % entity)
-
-HTMLParser.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 IDParser(HTMLParser.HTMLParser):
- """Modified HTMLParser that isolates a tag with the specified id"""
- def __init__(self, id):
- self.id = id
- self.result = None
- self.started = False
- self.depth = {}
- self.html = None
- self.watch_startpos = False
- self.error_count = 0
- HTMLParser.HTMLParser.__init__(self)
-
- def error(self, message):
- print >> sys.stderr, self.getpos()
- if self.error_count > 10 or self.started:
- raise HTMLParser.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 'id' in attrs and attrs['id'] == self.id:
- 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 == None: return None
- if len(self.result) != 3: 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()
+ """Get preferred encoding.
+
+ Returns the best encoding scheme for the system, based on
+ locale.getpreferredencoding() and some further tweaks.
+ """
+ try:
+ pref = locale.getpreferredencoding()
+ 'TEST'.encode(pref)
+ except Exception:
+ pref = 'UTF-8'
+
+ return pref
+
+
+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
+ 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 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
+
+# On python2.6 the xml.etree.ElementTree.Element methods don't support
+# the namespace parameter
+
+
+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)
+
+
+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:
+ return None
+ return n
+
+
+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
+ 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
+ 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"""
- parser = IDParser(id)
- try:
- parser.loads(html)
- except HTMLParser.HTMLParseError:
- pass
- return parser.get_result()
+ """Return the content of the tag with the specified ID in the passed HTML document"""
+ return get_element_by_attribute('id', id, 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"""
+
+ 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.feed(html_element)
+ parser.close()
+ # Older Python may throw HTMLParseError in case of malformed HTML
+ except compat_HTMLParseError:
+ pass
+ return parser.attrs
def clean_html(html):
- """Clean an HTML snippet into a readable string"""
- # Newline vs
- html = html.replace('\n', ' ')
- html = re.sub('\s*<\s*br\s*/?\s*>\s*', '\n', html)
- # Strip html tags
- html = re.sub('<.*?>', '', html)
- # Replace html entities
- html = unescapeHTML(html)
- return 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'(?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
+ html = unescapeHTML(html)
+ return html.strip()
def sanitize_open(filename, open_mode):
- """Try to open the given filename, and slightly tweak it if this fails.
-
- Attempts to open the given filename. If this fails, it tries to change
- the filename slightly, step by step, until it's either able to open it
- or it fails and raises a final exception, like the standard open()
- function.
-
- It returns the tuple (stream, definitive_file_name).
- """
- try:
- if filename == u'-':
- if sys.platform == 'win32':
- import msvcrt
- msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
- return (sys.stdout, filename)
- stream = open(encodeFilename(filename), open_mode)
- return (stream, filename)
- except (IOError, OSError), err:
- # In case of error, try to remove win32 forbidden chars
- filename = re.sub(ur'[/<>:"\|\?\*]', u'#', filename)
-
- # An exception here should be caught in the caller
- stream = open(encodeFilename(filename), open_mode)
- return (stream, filename)
+ """Try to open the given filename, and slightly tweak it if this fails.
+
+ Attempts to open the given filename. If this fails, it tries to change
+ the filename slightly, step by step, until it's either able to open it
+ or it fails and raises a final exception, like the standard open()
+ function.
+
+ It returns the tuple (stream, definitive_file_name).
+ """
+ try:
+ if filename == '-':
+ if sys.platform == 'win32':
+ import msvcrt
+ msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
+ return (sys.stdout.buffer if hasattr(sys.stdout, 'buffer') else sys.stdout, filename)
+ stream = open(encodeFilename(filename), open_mode)
+ return (stream, filename)
+ except (IOError, OSError) as err:
+ if err.errno in (errno.EACCES,):
+ raise
+
+ # In case of error, try to remove win32 forbidden chars
+ alt_filename = sanitize_path(filename)
+ if alt_filename == filename:
+ raise
+ else:
+ # An exception here should be caught in the caller
+ stream = open(encodeFilename(alt_filename), open_mode)
+ return (stream, alt_filename)
def timeconvert(timestr):
- """Convert RFC 2822 defined time string into system timestamp"""
- timestamp = None
- timetuple = email.utils.parsedate_tz(timestr)
- if timetuple is not None:
- timestamp = email.utils.mktime_tz(timetuple)
- return timestamp
-
-def sanitize_filename(s):
- """Sanitizes a string so it could be used as part of a filename."""
- def replace_insane(char):
- if char in u' .\\/|?*<>:"' or ord(char) < 32:
- return '_'
- return char
- return u''.join(map(replace_insane, s)).strip('_')
+ """Convert RFC 2822 defined time string into system timestamp"""
+ timestamp = None
+ timetuple = email.utils.parsedate_tz(timestr)
+ if timetuple is not None:
+ 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.
+ """
+ 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 == '"':
+ return '' if restricted else '\''
+ elif char == ':':
+ return '_-' if restricted else ' -'
+ elif char in '\\/|*<>':
+ return '_'
+ if restricted and (char in '!&\'()[]{}$;`^,#' or char.isspace()):
+ return '_'
+ if restricted and ord(char) > 127:
+ return '_'
+ return char
+
+ # 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('__', '_')
+ result = result.strip('_')
+ # 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/rg3/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 = []
- for el in iterable:
- if el not in res:
- res.append(el)
- return res
+ """ Remove all duplicates from the input iterable """
+ res = []
+ for el in iterable:
+ if el not in res:
+ 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/rg3/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 (of type unicode)
- """
- assert type(s) == type(u'')
+ if s is None:
+ return None
+ assert type(s) == compat_str
+
+ 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, for_subprocess=False):
+ """
+ @param s The name of the file
+ """
+
+ assert type(s) == compat_str
+
+ # Python 3 has a Unicode API
+ if sys.version_info >= (3, 0):
+ return s
+
+ # 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
+
+ # 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:
+ return optval
+ if isinstance(optval, bytes):
+ optval = optval.decode(preferredencoding())
+
+ assert isinstance(optval, compat_str)
+ return optval
+
+
+def formatSeconds(secs):
+ if secs > 3600:
+ return '%d:%02d:%02d' % (secs // 3600, (secs % 3600) // 60, secs % 60)
+ elif secs > 60:
+ return '%d:%02d' % (secs // 60, secs % 60)
+ else:
+ return '%d' % secs
+
+
+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
+ else ssl.CERT_REQUIRED)
+ 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 YoutubeDLError(Exception):
+ """Base exception for YoutubeDL errors."""
+ pass
+
+
+class ExtractorError(YoutubeDLError):
+ """Error during info extraction."""
+
+ 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 += 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 ''.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(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(YoutubeDLError):
+ """Same File exception.
+
+ This exception will be thrown by FileDownloader objects if they detect
+ multiple files would have to be downloaded to the same file on disk.
+ """
+ pass
+
+
+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(YoutubeDLError):
+ """ --max-downloads limit has been reached. """
+ pass
+
+
+class UnavailableVideoError(YoutubeDLError):
+ """Unavailable Format exception.
+
+ This exception will be thrown when a video is requested
+ in a format that is not available for that video.
+ """
+ pass
+
+
+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.
+ """
+
+ 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/rg3/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.
+
+ This class, when installed with an OpenerDirector, automatically adds
+ 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
+ removed before making the real request.
+
+ Part of this code was copied from:
+
+ http://techknack.net/python-urllib2-handlers/
+
+ Andrew Rowls, the author of that code, agreed to release it to the
+ 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:
+ return zlib.decompress(data, -zlib.MAX_WBITS)
+ except zlib.error:
+ return zlib.decompress(data)
+
+ def http_request(self, req):
+ # 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':
+ 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 = 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/rg3/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 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 YoutubeDLCookieProcessor(compat_urllib_request.HTTPCookieProcessor):
+ def __init__(self, cookiejar=None):
+ compat_urllib_request.HTTPCookieProcessor.__init__(self, cookiejar)
+
+ def http_response(self, request, response):
+ # Python 2 will choke on next HTTP request in row if there are non-ASCII
+ # characters in Set-Cookie HTTP header of last response (see
+ # https://github.com/rg3/youtube-dl/issues/6769).
+ # In order to at least prevent crashing we will percent encode Set-Cookie
+ # header before HTTPCookieProcessor starts processing it.
+ # if sys.version_info < (3, 0) and response.headers:
+ # for set_cookie_header in ('Set-Cookie', 'Set-Cookie2'):
+ # set_cookie = response.headers.get(set_cookie_header)
+ # if set_cookie:
+ # set_cookie_escaped = compat_urllib_parse.quote(set_cookie, b"%/;:@&=+$,!~*'()?#[] ")
+ # if set_cookie != set_cookie_escaped:
+ # del response.headers[set_cookie_header]
+ # response.headers[set_cookie_header] = set_cookie_escaped
+ return compat_urllib_request.HTTPCookieProcessor.http_response(self, request, response)
+
+ https_request = compat_urllib_request.HTTPCookieProcessor.http_request
+ https_response = http_response
+
+
+def extract_timezone(date_str):
+ m = re.search(
+ r'^.{8,}?(?PZ$| ?(?P\+|-)(?P[0-9]{2}):?(?P[0-9]{2})$)',
+ date_str)
+ if not m:
+ timezone = datetime.timedelta()
+ else:
+ date_str = date_str[:-len(m.group('tz'))]
+ if not m.group('sign'):
+ timezone = datetime.timedelta()
+ else:
+ sign = 1 if m.group('sign') == '+' else -1
+ timezone = datetime.timedelta(
+ hours=sign * int(m.group('hours')),
+ minutes=sign * int(m.group('minutes')))
+ return timezone, date_str
+
+
+def parse_iso8601(date_str, delimiter='T', timezone=None):
+ """ Return a UNIX timestamp from the given date """
+
+ if date_str is None:
+ return None
+
+ date_str = re.sub(r'\.[0-9]+', '', date_str)
+
+ if timezone is None:
+ timezone, date_str = extract_timezone(date_str)
+
+ try:
+ date_format = '%Y-%m-%d{0}%H:%M:%S'.format(delimiter)
+ dt = datetime.datetime.strptime(date_str, date_format) - timezone
+ return calendar.timegm(dt.timetuple())
+ except ValueError:
+ pass
+
+
+def date_formats(day_first=True):
+ return DATE_FORMATS_DAY_FIRST if day_first else DATE_FORMATS_MONTH_FIRST
+
+
+def unified_strdate(date_str, day_first=True):
+ """Return a string with the date in the format YYYYMMDD"""
+
+ if date_str is None:
+ return None
+ upload_date = None
+ # Replace commas
+ date_str = date_str.replace(',', ' ')
+ # Remove AM/PM + timezone
+ date_str = re.sub(r'(?i)\s*(?:AM|PM)(?:\s+[A-Z]+)?', '', date_str)
+ _, date_str = extract_timezone(date_str)
+
+ for expression in date_formats(day_first):
+ try:
+ upload_date = datetime.datetime.strptime(date_str, expression).strftime('%Y%m%d')
+ except ValueError:
+ pass
+ if upload_date is None:
+ timetuple = email.utils.parsedate_tz(date_str)
+ if timetuple:
+ try:
+ upload_date = datetime.datetime(*timetuple[:6]).strftime('%Y%m%d')
+ except ValueError:
+ pass
+ if upload_date is not None:
+ return compat_str(upload_date)
+
+
+def unified_timestamp(date_str, day_first=True):
+ if date_str is None:
+ return None
+
+ date_str = re.sub(r'[,|]', '', date_str)
+
+ pm_delta = 12 if re.search(r'(?i)PM', date_str) else 0
+ timezone, date_str = extract_timezone(date_str)
+
+ # Remove AM/PM + timezone
+ date_str = re.sub(r'(?i)\s*(?:AM|PM)(?:\s+[A-Z]+)?', '', date_str)
+
+ # Remove unrecognized timezones from ISO 8601 alike timestamps
+ m = re.search(r'\d{1,2}:\d{1,2}(?:\.\d+)?(?P\s*[A-Z]+)$', date_str)
+ if m:
+ date_str = date_str[:-len(m.group('tz'))]
+
+ # Python only supports microseconds, so remove nanoseconds
+ m = re.search(r'^([0-9]{4,}-[0-9]{1,2}-[0-9]{1,2}T[0-9]{1,2}:[0-9]{1,2}:[0-9]{1,2}\.[0-9]{6})[0-9]+$', date_str)
+ if m:
+ date_str = m.group(1)
+
+ for expression in date_formats(day_first):
+ try:
+ dt = datetime.datetime.strptime(date_str, expression) - timezone + datetime.timedelta(hours=pm_delta)
+ return calendar.timegm(dt.timetuple())
+ except ValueError:
+ pass
+ timetuple = email.utils.parsedate_tz(date_str)
+ if timetuple:
+ return calendar.timegm(timetuple) + pm_delta * 3600
+
+
+def determine_ext(url, default_ext='unknown_video'):
+ if url is None or '.' not in url:
+ return default_ext
+ guess = url.partition('?')[0].rpartition('.')[2]
+ if re.match(r'^[A-Za-z0-9]+$', guess):
+ return guess
+ # Try extract ext from URLs like http://example.com/foo/bar.mp4/?download
+ elif guess.rstrip('/') in KNOWN_EXTENSIONS:
+ return guess.rstrip('/')
+ else:
+ return default_ext
+
+
+def subtitles_filename(filename, sub_lang, sub_format):
+ return filename.rsplit('.', 1)[0] + '.' + sub_lang + '.' + sub_format
+
+
+def date_from_str(date_str):
+ """
+ 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 in ('now', 'today'):
+ return today
+ if date_str == 'yesterday':
+ return today - datetime.timedelta(days=1)
+ match = re.match(r'(now|today)(?P[+-])(?P