1909 lines
		
	
	
		
			79 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			1909 lines
		
	
	
		
			79 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
# coding: utf-8
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import collections
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import errno
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import io
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import itertools
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import json
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import os.path
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import re
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import string
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import struct
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import traceback
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import zlib
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from .common import InfoExtractor, SearchInfoExtractor
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from .subtitles import SubtitlesInfoExtractor
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from ..utils import (
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    compat_chr,
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    compat_parse_qs,
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    compat_urllib_parse,
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    compat_urllib_request,
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    compat_urlparse,
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    compat_str,
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    clean_html,
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    get_cachedir,
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    get_element_by_id,
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    get_element_by_attribute,
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    ExtractorError,
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    unescapeHTML,
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    unified_strdate,
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    orderedSet,
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    write_json_file,
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)
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class YoutubeBaseInfoExtractor(InfoExtractor):
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    """Provide base functions for Youtube extractors"""
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    _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
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    _LANG_URL = r'https://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
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    _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
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    _NETRC_MACHINE = 'youtube'
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    # If True it will raise an error if no login info is provided
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    _LOGIN_REQUIRED = False
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    def _set_language(self):
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        return bool(self._download_webpage(
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            self._LANG_URL, None,
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            note=u'Setting language', errnote='unable to set language',
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            fatal=False))
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    def _login(self):
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        (username, password) = self._get_login_info()
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        # No authentication to be performed
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        if username is None:
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            if self._LOGIN_REQUIRED:
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                raise ExtractorError(u'No login info available, needed for using %s.' % self.IE_NAME, expected=True)
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            return False
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        login_page = self._download_webpage(
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            self._LOGIN_URL, None,
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            note=u'Downloading login page',
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            errnote=u'unable to fetch login page', fatal=False)
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        if login_page is False:
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            return
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        galx = self._search_regex(r'(?s)<input.+?name="GALX".+?value="(.+?)"',
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                                  login_page, u'Login GALX parameter')
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        # Log in
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        login_form_strs = {
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                u'continue': u'https://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
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                u'Email': username,
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                u'GALX': galx,
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                u'Passwd': password,
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                u'PersistentCookie': u'yes',
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                u'_utf8': u'霱',
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                u'bgresponse': u'js_disabled',
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                u'checkConnection': u'',
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                u'checkedDomains': u'youtube',
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                u'dnConn': u'',
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                u'pstMsg': u'0',
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                u'rmShown': u'1',
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                u'secTok': u'',
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                u'signIn': u'Sign in',
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                u'timeStmp': u'',
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                u'service': u'youtube',
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                u'uilel': u'3',
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                u'hl': u'en_US',
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        }
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        # Convert to UTF-8 *before* urlencode because Python 2.x's urlencode
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        # chokes on unicode
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        login_form = dict((k.encode('utf-8'), v.encode('utf-8')) for k,v in login_form_strs.items())
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        login_data = compat_urllib_parse.urlencode(login_form).encode('ascii')
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        req = compat_urllib_request.Request(self._LOGIN_URL, login_data)
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        login_results = self._download_webpage(
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            req, None,
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            note=u'Logging in', errnote=u'unable to log in', fatal=False)
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        if login_results is False:
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            return False
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        if re.search(r'(?i)<form[^>]* id="gaia_loginform"', login_results) is not None:
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            self._downloader.report_warning(u'unable to log in: bad username or password')
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            return False
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        return True
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    def _confirm_age(self):
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        age_form = {
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            'next_url': '/',
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            'action_confirm': 'Confirm',
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        }
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        req = compat_urllib_request.Request(self._AGE_URL, compat_urllib_parse.urlencode(age_form))
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        self._download_webpage(
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            req, None,
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            note=u'Confirming age', errnote=u'Unable to confirm age')
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        return True
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    def _real_initialize(self):
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        if self._downloader is None:
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            return
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        if not self._set_language():
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            return
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        if not self._login():
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            return
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        self._confirm_age()
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class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
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    IE_DESC = u'YouTube.com'
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    _VALID_URL = r"""(?x)^
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                     (
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                         (?:https?://|//)?                                    # http(s):// or protocol-independent URL (optional)
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                         (?:(?:(?:(?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/|
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                            tube\.majestyc\.net/|
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                            youtube\.googleapis\.com/)                        # the various hostnames, with wildcard subdomains
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                         (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
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                         (?:                                                  # the various things that can precede the ID:
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                             (?:(?:v|embed|e)/)                               # v/ or embed/ or e/
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                             |(?:                                             # or the v= param in all its forms
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                                 (?:(?:watch|movie)(?:_popup)?(?:\.php)?)?    # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
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                                 (?:\?|\#!?)                                  # the params delimiter ? or # or #!
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                                 (?:.*?&)?                                    # any other preceding param (like /?s=tuff&v=xxxx)
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                                 v=
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                             )
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                         ))
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                         |youtu\.be/                                          # just youtu.be/xxxx
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                         )
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                     )?                                                       # all until now is optional -> you can pass the naked ID
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                     ([0-9A-Za-z_-]{11})                                      # here is it! the YouTube video ID
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                     (?(1).+)?                                                # if we found the ID, everything can follow
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                     $"""
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    _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
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    # Listed in order of quality
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    _available_formats = ['38', '37', '46', '22', '45', '35', '44', '34', '18', '43', '6', '5', '36', '17', '13',
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                          # Apple HTTP Live Streaming
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                          '96', '95', '94', '93', '92', '132', '151',
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                          # 3D
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                          '85', '84', '102', '83', '101', '82', '100',
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                          # Dash video
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                          '138', '137', '248', '136', '247', '135', '246',
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                          '245', '244', '134', '243', '133', '242', '160',
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                          # Dash audio
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                          '141', '172', '140', '171', '139',
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                          ]
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    _available_formats_prefer_free = ['38', '46', '37', '45', '22', '44', '35', '43', '34', '18', '6', '5', '36', '17', '13',
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                                      # Apple HTTP Live Streaming
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                                      '96', '95', '94', '93', '92', '132', '151',
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                                      # 3D
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                                      '85', '102', '84', '101', '83', '100', '82',
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                                      # Dash video
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                                      '138', '248', '137', '247', '136', '246', '245',
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                                      '244', '135', '243', '134', '242', '133', '160',
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                                      # Dash audio
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                                      '172', '141', '171', '140', '139',
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                                      ]
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    _video_formats_map = {
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        'flv': ['35', '34', '6', '5'],
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        '3gp': ['36', '17', '13'],
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        'mp4': ['38', '37', '22', '18'],
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        'webm': ['46', '45', '44', '43'],
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    }
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    _video_extensions = {
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        '13': '3gp',
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        '17': '3gp',
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        '18': 'mp4',
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        '22': 'mp4',
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        '36': '3gp',
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        '37': 'mp4',
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        '38': 'mp4',
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        '43': 'webm',
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        '44': 'webm',
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        '45': 'webm',
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        '46': 'webm',
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        # 3d videos
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        '82': 'mp4',
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        '83': 'mp4',
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        '84': 'mp4',
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        '85': 'mp4',
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        '100': 'webm',
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        '101': 'webm',
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        '102': 'webm',
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        # Apple HTTP Live Streaming
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        '92': 'mp4',
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        '93': 'mp4',
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        '94': 'mp4',
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        '95': 'mp4',
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        '96': 'mp4',
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        '132': 'mp4',
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        '151': 'mp4',
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        # Dash mp4
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        '133': 'mp4',
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        '134': 'mp4',
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        '135': 'mp4',
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        '136': 'mp4',
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        '137': 'mp4',
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        '138': 'mp4',
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        '160': 'mp4',
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        # Dash mp4 audio
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        '139': 'm4a',
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        '140': 'm4a',
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        '141': 'm4a',
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        # Dash webm
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        '171': 'webm',
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        '172': 'webm',
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        '242': 'webm',
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        '243': 'webm',
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        '244': 'webm',
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        '245': 'webm',
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        '246': 'webm',
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        '247': 'webm',
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        '248': 'webm',
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    }
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    _video_dimensions = {
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        '5': '400x240',
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        '6': '???',
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        '13': '???',
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        '17': '176x144',
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        '18': '640x360',
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        '22': '1280x720',
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        '34': '640x360',
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        '35': '854x480',
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        '36': '320x240',
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        '37': '1920x1080',
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        '38': '4096x3072',
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        '43': '640x360',
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        '44': '854x480',
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        '45': '1280x720',
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        '46': '1920x1080',
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        '82': '360p',
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        '83': '480p',
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        '84': '720p',
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        '85': '1080p',
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        '92': '240p',
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        '93': '360p',
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        '94': '480p',
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        '95': '720p',
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        '96': '1080p',
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        '100': '360p',
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        '101': '480p',
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        '102': '720p',
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        '132': '240p',
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        '151': '72p',
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        '133': '240p',
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        '134': '360p',
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        '135': '480p',
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        '136': '720p',
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        '137': '1080p',
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        '138': '>1080p',
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        '139': '48k',
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        '140': '128k',
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        '141': '256k',
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        '160': '192p',
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        '171': '128k',
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        '172': '256k',
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        '242': '240p',
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        '243': '360p',
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        '244': '480p',
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        '245': '480p',
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        '246': '480p',
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        '247': '720p',
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        '248': '1080p',
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    }
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    _special_itags = {
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        '82': '3D',
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        '83': '3D',
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        '84': '3D',
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        '85': '3D',
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        '100': '3D',
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        '101': '3D',
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        '102': '3D',
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        '133': 'DASH Video',
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        '134': 'DASH Video',
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        '135': 'DASH Video',
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        '136': 'DASH Video',
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        '137': 'DASH Video',
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        '138': 'DASH Video',
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        '139': 'DASH Audio',
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        '140': 'DASH Audio',
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        '141': 'DASH Audio',
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        '160': 'DASH Video',
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        '171': 'DASH Audio',
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        '172': 'DASH Audio',
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        '242': 'DASH Video',
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        '243': 'DASH Video',
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        '244': 'DASH Video',
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        '245': 'DASH Video',
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        '246': 'DASH Video',
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        '247': 'DASH Video',
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        '248': 'DASH Video',
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    }
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    IE_NAME = u'youtube'
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    _TESTS = [
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        {
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            u"url":  u"http://www.youtube.com/watch?v=BaW_jenozKc",
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            u"file":  u"BaW_jenozKc.mp4",
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            u"info_dict": {
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                u"title": u"youtube-dl test video \"'/\\ä↭𝕐",
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                u"uploader": u"Philipp Hagemeister",
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                u"uploader_id": u"phihag",
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                u"upload_date": u"20121002",
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                u"description": u"test chars:  \"'/\\ä↭𝕐\ntest URL: https://github.com/rg3/youtube-dl/issues/1892\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de ."
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            }
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        },
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        {
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            u"url":  u"http://www.youtube.com/watch?v=UxxajLWwzqY",
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            u"file":  u"UxxajLWwzqY.mp4",
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            u"note": u"Test generic use_cipher_signature video (#897)",
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            u"info_dict": {
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                u"upload_date": u"20120506",
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                u"title": u"Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO]",
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                u"description": u"md5:5b292926389560516e384ac437c0ec07",
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                u"uploader": u"Icona Pop",
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                u"uploader_id": u"IconaPop"
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            }
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        },
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        {
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            u"url":  u"https://www.youtube.com/watch?v=07FYdnEawAQ",
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            u"file":  u"07FYdnEawAQ.mp4",
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            u"note": u"Test VEVO video with age protection (#956)",
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            u"info_dict": {
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                u"upload_date": u"20130703",
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                u"title": u"Justin Timberlake - Tunnel Vision (Explicit)",
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                u"description": u"md5:64249768eec3bc4276236606ea996373",
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                u"uploader": u"justintimberlakeVEVO",
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                u"uploader_id": u"justintimberlakeVEVO"
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            }
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        },
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        {
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            u"url":  u"//www.YouTube.com/watch?v=yZIXLfi8CZQ",
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            u"file":  u"yZIXLfi8CZQ.mp4",
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            u"note": u"Embed-only video (#1746)",
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            u"info_dict": {
 | 
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                u"upload_date": u"20120608",
 | 
						|
                u"title": u"Principal Sexually Assaults A Teacher - Episode 117 - 8th June 2012",
 | 
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                u"description": u"md5:09b78bd971f1e3e289601dfba15ca4f7",
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                u"uploader": u"SET India",
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                u"uploader_id": u"setindia"
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            }
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        },
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    ]
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 | 
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    @classmethod
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    def suitable(cls, url):
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        """Receives a URL and returns True if suitable for this IE."""
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        if YoutubePlaylistIE.suitable(url): return False
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        return re.match(cls._VALID_URL, url) is not None
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 | 
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    def __init__(self, *args, **kwargs):
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        super(YoutubeIE, self).__init__(*args, **kwargs)
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        self._player_cache = {}
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    def report_video_info_webpage_download(self, video_id):
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        """Report attempt to download video info webpage."""
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        self.to_screen(u'%s: Downloading video info webpage' % video_id)
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 | 
						|
    def report_information_extraction(self, video_id):
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        """Report attempt to extract video information."""
 | 
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        self.to_screen(u'%s: Extracting video information' % video_id)
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 | 
						|
    def report_unavailable_format(self, video_id, format):
 | 
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        """Report extracted video URL."""
 | 
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        self.to_screen(u'%s: Format %s not available' % (video_id, format))
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 | 
						|
    def report_rtmp_download(self):
 | 
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        """Indicate the download will use the RTMP protocol."""
 | 
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        self.to_screen(u'RTMP download detected')
 | 
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 | 
						|
    def _extract_signature_function(self, video_id, player_url, slen):
 | 
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        id_m = re.match(r'.*-(?P<id>[a-zA-Z0-9_-]+)\.(?P<ext>[a-z]+)$',
 | 
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                        player_url)
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        player_type = id_m.group('ext')
 | 
						|
        player_id = id_m.group('id')
 | 
						|
 | 
						|
        # Read from filesystem cache
 | 
						|
        func_id = '%s_%s_%d' % (player_type, player_id, slen)
 | 
						|
        assert os.path.basename(func_id) == func_id
 | 
						|
        cache_dir = get_cachedir(self._downloader.params)
 | 
						|
 | 
						|
        cache_enabled = cache_dir is not None
 | 
						|
        if cache_enabled:
 | 
						|
            cache_fn = os.path.join(os.path.expanduser(cache_dir),
 | 
						|
                                    u'youtube-sigfuncs',
 | 
						|
                                    func_id + '.json')
 | 
						|
            try:
 | 
						|
                with io.open(cache_fn, 'r', encoding='utf-8') as cachef:
 | 
						|
                    cache_spec = json.load(cachef)
 | 
						|
                return lambda s: u''.join(s[i] for i in cache_spec)
 | 
						|
            except IOError:
 | 
						|
                pass  # No cache available
 | 
						|
 | 
						|
        if player_type == 'js':
 | 
						|
            code = self._download_webpage(
 | 
						|
                player_url, video_id,
 | 
						|
                note=u'Downloading %s player %s' % (player_type, player_id),
 | 
						|
                errnote=u'Download of %s failed' % player_url)
 | 
						|
            res = self._parse_sig_js(code)
 | 
						|
        elif player_type == 'swf':
 | 
						|
            urlh = self._request_webpage(
 | 
						|
                player_url, video_id,
 | 
						|
                note=u'Downloading %s player %s' % (player_type, player_id),
 | 
						|
                errnote=u'Download of %s failed' % player_url)
 | 
						|
            code = urlh.read()
 | 
						|
            res = self._parse_sig_swf(code)
 | 
						|
        else:
 | 
						|
            assert False, 'Invalid player type %r' % player_type
 | 
						|
 | 
						|
        if cache_enabled:
 | 
						|
            try:
 | 
						|
                test_string = u''.join(map(compat_chr, range(slen)))
 | 
						|
                cache_res = res(test_string)
 | 
						|
                cache_spec = [ord(c) for c in cache_res]
 | 
						|
                try:
 | 
						|
                    os.makedirs(os.path.dirname(cache_fn))
 | 
						|
                except OSError as ose:
 | 
						|
                    if ose.errno != errno.EEXIST:
 | 
						|
                        raise
 | 
						|
                write_json_file(cache_spec, cache_fn)
 | 
						|
            except Exception:
 | 
						|
                tb = traceback.format_exc()
 | 
						|
                self._downloader.report_warning(
 | 
						|
                    u'Writing cache to %r failed: %s' % (cache_fn, tb))
 | 
						|
 | 
						|
        return res
 | 
						|
 | 
						|
    def _print_sig_code(self, func, slen):
 | 
						|
        def gen_sig_code(idxs):
 | 
						|
            def _genslice(start, end, step):
 | 
						|
                starts = u'' if start == 0 else str(start)
 | 
						|
                ends = (u':%d' % (end+step)) if end + step >= 0 else u':'
 | 
						|
                steps = u'' if step == 1 else (u':%d' % step)
 | 
						|
                return u's[%s%s%s]' % (starts, ends, steps)
 | 
						|
 | 
						|
            step = None
 | 
						|
            start = '(Never used)'  # Quelch pyflakes warnings - start will be
 | 
						|
                                    # set as soon as step is set
 | 
						|
            for i, prev in zip(idxs[1:], idxs[:-1]):
 | 
						|
                if step is not None:
 | 
						|
                    if i - prev == step:
 | 
						|
                        continue
 | 
						|
                    yield _genslice(start, prev, step)
 | 
						|
                    step = None
 | 
						|
                    continue
 | 
						|
                if i - prev in [-1, 1]:
 | 
						|
                    step = i - prev
 | 
						|
                    start = prev
 | 
						|
                    continue
 | 
						|
                else:
 | 
						|
                    yield u's[%d]' % prev
 | 
						|
            if step is None:
 | 
						|
                yield u's[%d]' % i
 | 
						|
            else:
 | 
						|
                yield _genslice(start, i, step)
 | 
						|
 | 
						|
        test_string = u''.join(map(compat_chr, range(slen)))
 | 
						|
        cache_res = func(test_string)
 | 
						|
        cache_spec = [ord(c) for c in cache_res]
 | 
						|
        expr_code = u' + '.join(gen_sig_code(cache_spec))
 | 
						|
        code = u'if len(s) == %d:\n    return %s\n' % (slen, expr_code)
 | 
						|
        self.to_screen(u'Extracted signature function:\n' + code)
 | 
						|
 | 
						|
    def _parse_sig_js(self, jscode):
 | 
						|
        funcname = self._search_regex(
 | 
						|
            r'signature=([a-zA-Z]+)', jscode,
 | 
						|
            u'Initial JS player signature function name')
 | 
						|
 | 
						|
        functions = {}
 | 
						|
 | 
						|
        def argidx(varname):
 | 
						|
            return string.lowercase.index(varname)
 | 
						|
 | 
						|
        def interpret_statement(stmt, local_vars, allow_recursion=20):
 | 
						|
            if allow_recursion < 0:
 | 
						|
                raise ExtractorError(u'Recursion limit reached')
 | 
						|
 | 
						|
            if stmt.startswith(u'var '):
 | 
						|
                stmt = stmt[len(u'var '):]
 | 
						|
            ass_m = re.match(r'^(?P<out>[a-z]+)(?:\[(?P<index>[^\]]+)\])?' +
 | 
						|
                             r'=(?P<expr>.*)$', stmt)
 | 
						|
            if ass_m:
 | 
						|
                if ass_m.groupdict().get('index'):
 | 
						|
                    def assign(val):
 | 
						|
                        lvar = local_vars[ass_m.group('out')]
 | 
						|
                        idx = interpret_expression(ass_m.group('index'),
 | 
						|
                                                   local_vars, allow_recursion)
 | 
						|
                        assert isinstance(idx, int)
 | 
						|
                        lvar[idx] = val
 | 
						|
                        return val
 | 
						|
                    expr = ass_m.group('expr')
 | 
						|
                else:
 | 
						|
                    def assign(val):
 | 
						|
                        local_vars[ass_m.group('out')] = val
 | 
						|
                        return val
 | 
						|
                    expr = ass_m.group('expr')
 | 
						|
            elif stmt.startswith(u'return '):
 | 
						|
                assign = lambda v: v
 | 
						|
                expr = stmt[len(u'return '):]
 | 
						|
            else:
 | 
						|
                raise ExtractorError(
 | 
						|
                    u'Cannot determine left side of statement in %r' % stmt)
 | 
						|
 | 
						|
            v = interpret_expression(expr, local_vars, allow_recursion)
 | 
						|
            return assign(v)
 | 
						|
 | 
						|
        def interpret_expression(expr, local_vars, allow_recursion):
 | 
						|
            if expr.isdigit():
 | 
						|
                return int(expr)
 | 
						|
 | 
						|
            if expr.isalpha():
 | 
						|
                return local_vars[expr]
 | 
						|
 | 
						|
            m = re.match(r'^(?P<in>[a-z]+)\.(?P<member>.*)$', expr)
 | 
						|
            if m:
 | 
						|
                member = m.group('member')
 | 
						|
                val = local_vars[m.group('in')]
 | 
						|
                if member == 'split("")':
 | 
						|
                    return list(val)
 | 
						|
                if member == 'join("")':
 | 
						|
                    return u''.join(val)
 | 
						|
                if member == 'length':
 | 
						|
                    return len(val)
 | 
						|
                if member == 'reverse()':
 | 
						|
                    return val[::-1]
 | 
						|
                slice_m = re.match(r'slice\((?P<idx>.*)\)', member)
 | 
						|
                if slice_m:
 | 
						|
                    idx = interpret_expression(
 | 
						|
                        slice_m.group('idx'), local_vars, allow_recursion-1)
 | 
						|
                    return val[idx:]
 | 
						|
 | 
						|
            m = re.match(
 | 
						|
                r'^(?P<in>[a-z]+)\[(?P<idx>.+)\]$', expr)
 | 
						|
            if m:
 | 
						|
                val = local_vars[m.group('in')]
 | 
						|
                idx = interpret_expression(m.group('idx'), local_vars,
 | 
						|
                                           allow_recursion-1)
 | 
						|
                return val[idx]
 | 
						|
 | 
						|
            m = re.match(r'^(?P<a>.+?)(?P<op>[%])(?P<b>.+?)$', expr)
 | 
						|
            if m:
 | 
						|
                a = interpret_expression(m.group('a'),
 | 
						|
                                         local_vars, allow_recursion)
 | 
						|
                b = interpret_expression(m.group('b'),
 | 
						|
                                         local_vars, allow_recursion)
 | 
						|
                return a % b
 | 
						|
 | 
						|
            m = re.match(
 | 
						|
                r'^(?P<func>[a-zA-Z]+)\((?P<args>[a-z0-9,]+)\)$', expr)
 | 
						|
            if m:
 | 
						|
                fname = m.group('func')
 | 
						|
                if fname not in functions:
 | 
						|
                    functions[fname] = extract_function(fname)
 | 
						|
                argvals = [int(v) if v.isdigit() else local_vars[v]
 | 
						|
                           for v in m.group('args').split(',')]
 | 
						|
                return functions[fname](argvals)
 | 
						|
            raise ExtractorError(u'Unsupported JS expression %r' % expr)
 | 
						|
 | 
						|
        def extract_function(funcname):
 | 
						|
            func_m = re.search(
 | 
						|
                r'function ' + re.escape(funcname) +
 | 
						|
                r'\((?P<args>[a-z,]+)\){(?P<code>[^}]+)}',
 | 
						|
                jscode)
 | 
						|
            argnames = func_m.group('args').split(',')
 | 
						|
 | 
						|
            def resf(args):
 | 
						|
                local_vars = dict(zip(argnames, args))
 | 
						|
                for stmt in func_m.group('code').split(';'):
 | 
						|
                    res = interpret_statement(stmt, local_vars)
 | 
						|
                return res
 | 
						|
            return resf
 | 
						|
 | 
						|
        initial_function = extract_function(funcname)
 | 
						|
        return lambda s: initial_function([s])
 | 
						|
 | 
						|
    def _parse_sig_swf(self, file_contents):
 | 
						|
        if file_contents[1:3] != b'WS':
 | 
						|
            raise ExtractorError(
 | 
						|
                u'Not an SWF file; header is %r' % file_contents[:3])
 | 
						|
        if file_contents[:1] == b'C':
 | 
						|
            content = zlib.decompress(file_contents[8:])
 | 
						|
        else:
 | 
						|
            raise NotImplementedError(u'Unsupported compression format %r' %
 | 
						|
                                      file_contents[:1])
 | 
						|
 | 
						|
        def extract_tags(content):
 | 
						|
            pos = 0
 | 
						|
            while pos < len(content):
 | 
						|
                header16 = struct.unpack('<H', content[pos:pos+2])[0]
 | 
						|
                pos += 2
 | 
						|
                tag_code = header16 >> 6
 | 
						|
                tag_len = header16 & 0x3f
 | 
						|
                if tag_len == 0x3f:
 | 
						|
                    tag_len = struct.unpack('<I', content[pos:pos+4])[0]
 | 
						|
                    pos += 4
 | 
						|
                assert pos+tag_len <= len(content)
 | 
						|
                yield (tag_code, content[pos:pos+tag_len])
 | 
						|
                pos += tag_len
 | 
						|
 | 
						|
        code_tag = next(tag
 | 
						|
                        for tag_code, tag in extract_tags(content)
 | 
						|
                        if tag_code == 82)
 | 
						|
        p = code_tag.index(b'\0', 4) + 1
 | 
						|
        code_reader = io.BytesIO(code_tag[p:])
 | 
						|
 | 
						|
        # Parse ABC (AVM2 ByteCode)
 | 
						|
        def read_int(reader=None):
 | 
						|
            if reader is None:
 | 
						|
                reader = code_reader
 | 
						|
            res = 0
 | 
						|
            shift = 0
 | 
						|
            for _ in range(5):
 | 
						|
                buf = reader.read(1)
 | 
						|
                assert len(buf) == 1
 | 
						|
                b = struct.unpack('<B', buf)[0]
 | 
						|
                res = res | ((b & 0x7f) << shift)
 | 
						|
                if b & 0x80 == 0:
 | 
						|
                    break
 | 
						|
                shift += 7
 | 
						|
            return res
 | 
						|
 | 
						|
        def u30(reader=None):
 | 
						|
            res = read_int(reader)
 | 
						|
            assert res & 0xf0000000 == 0
 | 
						|
            return res
 | 
						|
        u32 = read_int
 | 
						|
 | 
						|
        def s32(reader=None):
 | 
						|
            v = read_int(reader)
 | 
						|
            if v & 0x80000000 != 0:
 | 
						|
                v = - ((v ^ 0xffffffff) + 1)
 | 
						|
            return v
 | 
						|
 | 
						|
        def read_string(reader=None):
 | 
						|
            if reader is None:
 | 
						|
                reader = code_reader
 | 
						|
            slen = u30(reader)
 | 
						|
            resb = reader.read(slen)
 | 
						|
            assert len(resb) == slen
 | 
						|
            return resb.decode('utf-8')
 | 
						|
 | 
						|
        def read_bytes(count, reader=None):
 | 
						|
            if reader is None:
 | 
						|
                reader = code_reader
 | 
						|
            resb = reader.read(count)
 | 
						|
            assert len(resb) == count
 | 
						|
            return resb
 | 
						|
 | 
						|
        def read_byte(reader=None):
 | 
						|
            resb = read_bytes(1, reader=reader)
 | 
						|
            res = struct.unpack('<B', resb)[0]
 | 
						|
            return res
 | 
						|
 | 
						|
        # minor_version + major_version
 | 
						|
        read_bytes(2 + 2)
 | 
						|
 | 
						|
        # Constant pool
 | 
						|
        int_count = u30()
 | 
						|
        for _c in range(1, int_count):
 | 
						|
            s32()
 | 
						|
        uint_count = u30()
 | 
						|
        for _c in range(1, uint_count):
 | 
						|
            u32()
 | 
						|
        double_count = u30()
 | 
						|
        read_bytes((double_count-1) * 8)
 | 
						|
        string_count = u30()
 | 
						|
        constant_strings = [u'']
 | 
						|
        for _c in range(1, string_count):
 | 
						|
            s = read_string()
 | 
						|
            constant_strings.append(s)
 | 
						|
        namespace_count = u30()
 | 
						|
        for _c in range(1, namespace_count):
 | 
						|
            read_bytes(1)  # kind
 | 
						|
            u30()  # name
 | 
						|
        ns_set_count = u30()
 | 
						|
        for _c in range(1, ns_set_count):
 | 
						|
            count = u30()
 | 
						|
            for _c2 in range(count):
 | 
						|
                u30()
 | 
						|
        multiname_count = u30()
 | 
						|
        MULTINAME_SIZES = {
 | 
						|
            0x07: 2,  # QName
 | 
						|
            0x0d: 2,  # QNameA
 | 
						|
            0x0f: 1,  # RTQName
 | 
						|
            0x10: 1,  # RTQNameA
 | 
						|
            0x11: 0,  # RTQNameL
 | 
						|
            0x12: 0,  # RTQNameLA
 | 
						|
            0x09: 2,  # Multiname
 | 
						|
            0x0e: 2,  # MultinameA
 | 
						|
            0x1b: 1,  # MultinameL
 | 
						|
            0x1c: 1,  # MultinameLA
 | 
						|
        }
 | 
						|
        multinames = [u'']
 | 
						|
        for _c in range(1, multiname_count):
 | 
						|
            kind = u30()
 | 
						|
            assert kind in MULTINAME_SIZES, u'Invalid multiname kind %r' % kind
 | 
						|
            if kind == 0x07:
 | 
						|
                u30()  # namespace_idx
 | 
						|
                name_idx = u30()
 | 
						|
                multinames.append(constant_strings[name_idx])
 | 
						|
            else:
 | 
						|
                multinames.append('[MULTINAME kind: %d]' % kind)
 | 
						|
                for _c2 in range(MULTINAME_SIZES[kind]):
 | 
						|
                    u30()
 | 
						|
 | 
						|
        # Methods
 | 
						|
        method_count = u30()
 | 
						|
        MethodInfo = collections.namedtuple(
 | 
						|
            'MethodInfo',
 | 
						|
            ['NEED_ARGUMENTS', 'NEED_REST'])
 | 
						|
        method_infos = []
 | 
						|
        for method_id in range(method_count):
 | 
						|
            param_count = u30()
 | 
						|
            u30()  # return type
 | 
						|
            for _ in range(param_count):
 | 
						|
                u30()  # param type
 | 
						|
            u30()  # name index (always 0 for youtube)
 | 
						|
            flags = read_byte()
 | 
						|
            if flags & 0x08 != 0:
 | 
						|
                # Options present
 | 
						|
                option_count = u30()
 | 
						|
                for c in range(option_count):
 | 
						|
                    u30()  # val
 | 
						|
                    read_bytes(1)  # kind
 | 
						|
            if flags & 0x80 != 0:
 | 
						|
                # Param names present
 | 
						|
                for _ in range(param_count):
 | 
						|
                    u30()  # param name
 | 
						|
            mi = MethodInfo(flags & 0x01 != 0, flags & 0x04 != 0)
 | 
						|
            method_infos.append(mi)
 | 
						|
 | 
						|
        # Metadata
 | 
						|
        metadata_count = u30()
 | 
						|
        for _c in range(metadata_count):
 | 
						|
            u30()  # name
 | 
						|
            item_count = u30()
 | 
						|
            for _c2 in range(item_count):
 | 
						|
                u30()  # key
 | 
						|
                u30()  # value
 | 
						|
 | 
						|
        def parse_traits_info():
 | 
						|
            trait_name_idx = u30()
 | 
						|
            kind_full = read_byte()
 | 
						|
            kind = kind_full & 0x0f
 | 
						|
            attrs = kind_full >> 4
 | 
						|
            methods = {}
 | 
						|
            if kind in [0x00, 0x06]:  # Slot or Const
 | 
						|
                u30()  # Slot id
 | 
						|
                u30()  # type_name_idx
 | 
						|
                vindex = u30()
 | 
						|
                if vindex != 0:
 | 
						|
                    read_byte()  # vkind
 | 
						|
            elif kind in [0x01, 0x02, 0x03]:  # Method / Getter / Setter
 | 
						|
                u30()  # disp_id
 | 
						|
                method_idx = u30()
 | 
						|
                methods[multinames[trait_name_idx]] = method_idx
 | 
						|
            elif kind == 0x04:  # Class
 | 
						|
                u30()  # slot_id
 | 
						|
                u30()  # classi
 | 
						|
            elif kind == 0x05:  # Function
 | 
						|
                u30()  # slot_id
 | 
						|
                function_idx = u30()
 | 
						|
                methods[function_idx] = multinames[trait_name_idx]
 | 
						|
            else:
 | 
						|
                raise ExtractorError(u'Unsupported trait kind %d' % kind)
 | 
						|
 | 
						|
            if attrs & 0x4 != 0:  # Metadata present
 | 
						|
                metadata_count = u30()
 | 
						|
                for _c3 in range(metadata_count):
 | 
						|
                    u30()  # metadata index
 | 
						|
 | 
						|
            return methods
 | 
						|
 | 
						|
        # Classes
 | 
						|
        TARGET_CLASSNAME = u'SignatureDecipher'
 | 
						|
        searched_idx = multinames.index(TARGET_CLASSNAME)
 | 
						|
        searched_class_id = None
 | 
						|
        class_count = u30()
 | 
						|
        for class_id in range(class_count):
 | 
						|
            name_idx = u30()
 | 
						|
            if name_idx == searched_idx:
 | 
						|
                # We found the class we're looking for!
 | 
						|
                searched_class_id = class_id
 | 
						|
            u30()  # super_name idx
 | 
						|
            flags = read_byte()
 | 
						|
            if flags & 0x08 != 0:  # Protected namespace is present
 | 
						|
                u30()  # protected_ns_idx
 | 
						|
            intrf_count = u30()
 | 
						|
            for _c2 in range(intrf_count):
 | 
						|
                u30()
 | 
						|
            u30()  # iinit
 | 
						|
            trait_count = u30()
 | 
						|
            for _c2 in range(trait_count):
 | 
						|
                parse_traits_info()
 | 
						|
 | 
						|
        if searched_class_id is None:
 | 
						|
            raise ExtractorError(u'Target class %r not found' %
 | 
						|
                                 TARGET_CLASSNAME)
 | 
						|
 | 
						|
        method_names = {}
 | 
						|
        method_idxs = {}
 | 
						|
        for class_id in range(class_count):
 | 
						|
            u30()  # cinit
 | 
						|
            trait_count = u30()
 | 
						|
            for _c2 in range(trait_count):
 | 
						|
                trait_methods = parse_traits_info()
 | 
						|
                if class_id == searched_class_id:
 | 
						|
                    method_names.update(trait_methods.items())
 | 
						|
                    method_idxs.update(dict(
 | 
						|
                        (idx, name)
 | 
						|
                        for name, idx in trait_methods.items()))
 | 
						|
 | 
						|
        # Scripts
 | 
						|
        script_count = u30()
 | 
						|
        for _c in range(script_count):
 | 
						|
            u30()  # init
 | 
						|
            trait_count = u30()
 | 
						|
            for _c2 in range(trait_count):
 | 
						|
                parse_traits_info()
 | 
						|
 | 
						|
        # Method bodies
 | 
						|
        method_body_count = u30()
 | 
						|
        Method = collections.namedtuple('Method', ['code', 'local_count'])
 | 
						|
        methods = {}
 | 
						|
        for _c in range(method_body_count):
 | 
						|
            method_idx = u30()
 | 
						|
            u30()  # max_stack
 | 
						|
            local_count = u30()
 | 
						|
            u30()  # init_scope_depth
 | 
						|
            u30()  # max_scope_depth
 | 
						|
            code_length = u30()
 | 
						|
            code = read_bytes(code_length)
 | 
						|
            if method_idx in method_idxs:
 | 
						|
                m = Method(code, local_count)
 | 
						|
                methods[method_idxs[method_idx]] = m
 | 
						|
            exception_count = u30()
 | 
						|
            for _c2 in range(exception_count):
 | 
						|
                u30()  # from
 | 
						|
                u30()  # to
 | 
						|
                u30()  # target
 | 
						|
                u30()  # exc_type
 | 
						|
                u30()  # var_name
 | 
						|
            trait_count = u30()
 | 
						|
            for _c2 in range(trait_count):
 | 
						|
                parse_traits_info()
 | 
						|
 | 
						|
        assert p + code_reader.tell() == len(code_tag)
 | 
						|
        assert len(methods) == len(method_idxs)
 | 
						|
 | 
						|
        method_pyfunctions = {}
 | 
						|
 | 
						|
        def extract_function(func_name):
 | 
						|
            if func_name in method_pyfunctions:
 | 
						|
                return method_pyfunctions[func_name]
 | 
						|
            if func_name not in methods:
 | 
						|
                raise ExtractorError(u'Cannot find function %r' % func_name)
 | 
						|
            m = methods[func_name]
 | 
						|
 | 
						|
            def resfunc(args):
 | 
						|
                registers = ['(this)'] + list(args) + [None] * m.local_count
 | 
						|
                stack = []
 | 
						|
                coder = io.BytesIO(m.code)
 | 
						|
                while True:
 | 
						|
                    opcode = struct.unpack('!B', coder.read(1))[0]
 | 
						|
                    if opcode == 36:  # pushbyte
 | 
						|
                        v = struct.unpack('!B', coder.read(1))[0]
 | 
						|
                        stack.append(v)
 | 
						|
                    elif opcode == 44:  # pushstring
 | 
						|
                        idx = u30(coder)
 | 
						|
                        stack.append(constant_strings[idx])
 | 
						|
                    elif opcode == 48:  # pushscope
 | 
						|
                        # We don't implement the scope register, so we'll just
 | 
						|
                        # ignore the popped value
 | 
						|
                        stack.pop()
 | 
						|
                    elif opcode == 70:  # callproperty
 | 
						|
                        index = u30(coder)
 | 
						|
                        mname = multinames[index]
 | 
						|
                        arg_count = u30(coder)
 | 
						|
                        args = list(reversed(
 | 
						|
                            [stack.pop() for _ in range(arg_count)]))
 | 
						|
                        obj = stack.pop()
 | 
						|
                        if mname == u'split':
 | 
						|
                            assert len(args) == 1
 | 
						|
                            assert isinstance(args[0], compat_str)
 | 
						|
                            assert isinstance(obj, compat_str)
 | 
						|
                            if args[0] == u'':
 | 
						|
                                res = list(obj)
 | 
						|
                            else:
 | 
						|
                                res = obj.split(args[0])
 | 
						|
                            stack.append(res)
 | 
						|
                        elif mname == u'slice':
 | 
						|
                            assert len(args) == 1
 | 
						|
                            assert isinstance(args[0], int)
 | 
						|
                            assert isinstance(obj, list)
 | 
						|
                            res = obj[args[0]:]
 | 
						|
                            stack.append(res)
 | 
						|
                        elif mname == u'join':
 | 
						|
                            assert len(args) == 1
 | 
						|
                            assert isinstance(args[0], compat_str)
 | 
						|
                            assert isinstance(obj, list)
 | 
						|
                            res = args[0].join(obj)
 | 
						|
                            stack.append(res)
 | 
						|
                        elif mname in method_pyfunctions:
 | 
						|
                            stack.append(method_pyfunctions[mname](args))
 | 
						|
                        else:
 | 
						|
                            raise NotImplementedError(
 | 
						|
                                u'Unsupported property %r on %r'
 | 
						|
                                % (mname, obj))
 | 
						|
                    elif opcode == 72:  # returnvalue
 | 
						|
                        res = stack.pop()
 | 
						|
                        return res
 | 
						|
                    elif opcode == 79:  # callpropvoid
 | 
						|
                        index = u30(coder)
 | 
						|
                        mname = multinames[index]
 | 
						|
                        arg_count = u30(coder)
 | 
						|
                        args = list(reversed(
 | 
						|
                            [stack.pop() for _ in range(arg_count)]))
 | 
						|
                        obj = stack.pop()
 | 
						|
                        if mname == u'reverse':
 | 
						|
                            assert isinstance(obj, list)
 | 
						|
                            obj.reverse()
 | 
						|
                        else:
 | 
						|
                            raise NotImplementedError(
 | 
						|
                                u'Unsupported (void) property %r on %r'
 | 
						|
                                % (mname, obj))
 | 
						|
                    elif opcode == 93:  # findpropstrict
 | 
						|
                        index = u30(coder)
 | 
						|
                        mname = multinames[index]
 | 
						|
                        res = extract_function(mname)
 | 
						|
                        stack.append(res)
 | 
						|
                    elif opcode == 97:  # setproperty
 | 
						|
                        index = u30(coder)
 | 
						|
                        value = stack.pop()
 | 
						|
                        idx = stack.pop()
 | 
						|
                        obj = stack.pop()
 | 
						|
                        assert isinstance(obj, list)
 | 
						|
                        assert isinstance(idx, int)
 | 
						|
                        obj[idx] = value
 | 
						|
                    elif opcode == 98:  # getlocal
 | 
						|
                        index = u30(coder)
 | 
						|
                        stack.append(registers[index])
 | 
						|
                    elif opcode == 99:  # setlocal
 | 
						|
                        index = u30(coder)
 | 
						|
                        value = stack.pop()
 | 
						|
                        registers[index] = value
 | 
						|
                    elif opcode == 102:  # getproperty
 | 
						|
                        index = u30(coder)
 | 
						|
                        pname = multinames[index]
 | 
						|
                        if pname == u'length':
 | 
						|
                            obj = stack.pop()
 | 
						|
                            assert isinstance(obj, list)
 | 
						|
                            stack.append(len(obj))
 | 
						|
                        else:  # Assume attribute access
 | 
						|
                            idx = stack.pop()
 | 
						|
                            assert isinstance(idx, int)
 | 
						|
                            obj = stack.pop()
 | 
						|
                            assert isinstance(obj, list)
 | 
						|
                            stack.append(obj[idx])
 | 
						|
                    elif opcode == 128:  # coerce
 | 
						|
                        u30(coder)
 | 
						|
                    elif opcode == 133:  # coerce_s
 | 
						|
                        assert isinstance(stack[-1], (type(None), compat_str))
 | 
						|
                    elif opcode == 164:  # modulo
 | 
						|
                        value2 = stack.pop()
 | 
						|
                        value1 = stack.pop()
 | 
						|
                        res = value1 % value2
 | 
						|
                        stack.append(res)
 | 
						|
                    elif opcode == 208:  # getlocal_0
 | 
						|
                        stack.append(registers[0])
 | 
						|
                    elif opcode == 209:  # getlocal_1
 | 
						|
                        stack.append(registers[1])
 | 
						|
                    elif opcode == 210:  # getlocal_2
 | 
						|
                        stack.append(registers[2])
 | 
						|
                    elif opcode == 211:  # getlocal_3
 | 
						|
                        stack.append(registers[3])
 | 
						|
                    elif opcode == 214:  # setlocal_2
 | 
						|
                        registers[2] = stack.pop()
 | 
						|
                    elif opcode == 215:  # setlocal_3
 | 
						|
                        registers[3] = stack.pop()
 | 
						|
                    else:
 | 
						|
                        raise NotImplementedError(
 | 
						|
                            u'Unsupported opcode %d' % opcode)
 | 
						|
 | 
						|
            method_pyfunctions[func_name] = resfunc
 | 
						|
            return resfunc
 | 
						|
 | 
						|
        initial_function = extract_function(u'decipher')
 | 
						|
        return lambda s: initial_function([s])
 | 
						|
 | 
						|
    def _decrypt_signature(self, s, video_id, player_url, age_gate=False):
 | 
						|
        """Turn the encrypted s field into a working signature"""
 | 
						|
 | 
						|
        if player_url is not None:
 | 
						|
            if player_url.startswith(u'//'):
 | 
						|
                player_url = u'https:' + player_url
 | 
						|
            try:
 | 
						|
                player_id = (player_url, len(s))
 | 
						|
                if player_id not in self._player_cache:
 | 
						|
                    func = self._extract_signature_function(
 | 
						|
                        video_id, player_url, len(s)
 | 
						|
                    )
 | 
						|
                    self._player_cache[player_id] = func
 | 
						|
                func = self._player_cache[player_id]
 | 
						|
                if self._downloader.params.get('youtube_print_sig_code'):
 | 
						|
                    self._print_sig_code(func, len(s))
 | 
						|
                return func(s)
 | 
						|
            except Exception:
 | 
						|
                tb = traceback.format_exc()
 | 
						|
                self._downloader.report_warning(
 | 
						|
                    u'Automatic signature extraction failed: ' + tb)
 | 
						|
 | 
						|
            self._downloader.report_warning(
 | 
						|
                u'Warning: Falling back to static signature algorithm')
 | 
						|
 | 
						|
        return self._static_decrypt_signature(
 | 
						|
            s, video_id, player_url, age_gate)
 | 
						|
 | 
						|
    def _static_decrypt_signature(self, s, video_id, player_url, age_gate):
 | 
						|
        if age_gate:
 | 
						|
            # The videos with age protection use another player, so the
 | 
						|
            # algorithms can be different.
 | 
						|
            if len(s) == 86:
 | 
						|
                return s[2:63] + s[82] + s[64:82] + s[63]
 | 
						|
 | 
						|
        if len(s) == 93:
 | 
						|
            return s[86:29:-1] + s[88] + s[28:5:-1]
 | 
						|
        elif len(s) == 92:
 | 
						|
            return s[25] + s[3:25] + s[0] + s[26:42] + s[79] + s[43:79] + s[91] + s[80:83]
 | 
						|
        elif len(s) == 91:
 | 
						|
            return s[84:27:-1] + s[86] + s[26:5:-1]
 | 
						|
        elif len(s) == 90:
 | 
						|
            return s[25] + s[3:25] + s[2] + s[26:40] + s[77] + s[41:77] + s[89] + s[78:81]
 | 
						|
        elif len(s) == 89:
 | 
						|
            return s[84:78:-1] + s[87] + s[77:60:-1] + s[0] + s[59:3:-1]
 | 
						|
        elif len(s) == 88:
 | 
						|
            return s[7:28] + s[87] + s[29:45] + s[55] + s[46:55] + s[2] + s[56:87] + s[28]
 | 
						|
        elif len(s) == 87:
 | 
						|
            return s[6:27] + s[4] + s[28:39] + s[27] + s[40:59] + s[2] + s[60:]
 | 
						|
        elif len(s) == 86:
 | 
						|
            return s[80:72:-1] + s[16] + s[71:39:-1] + s[72] + s[38:16:-1] + s[82] + s[15::-1]
 | 
						|
        elif len(s) == 85:
 | 
						|
            return s[3:11] + s[0] + s[12:55] + s[84] + s[56:84]
 | 
						|
        elif len(s) == 84:
 | 
						|
            return s[78:70:-1] + s[14] + s[69:37:-1] + s[70] + s[36:14:-1] + s[80] + s[:14][::-1]
 | 
						|
        elif len(s) == 83:
 | 
						|
            return s[80:63:-1] + s[0] + s[62:0:-1] + s[63]
 | 
						|
        elif len(s) == 82:
 | 
						|
            return s[80:37:-1] + s[7] + s[36:7:-1] + s[0] + s[6:0:-1] + s[37]
 | 
						|
        elif len(s) == 81:
 | 
						|
            return s[56] + s[79:56:-1] + s[41] + s[55:41:-1] + s[80] + s[40:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
 | 
						|
        elif len(s) == 80:
 | 
						|
            return s[1:19] + s[0] + s[20:68] + s[19] + s[69:80]
 | 
						|
        elif len(s) == 79:
 | 
						|
            return s[54] + s[77:54:-1] + s[39] + s[53:39:-1] + s[78] + s[38:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
 | 
						|
 | 
						|
        else:
 | 
						|
            raise ExtractorError(u'Unable to decrypt signature, key length %d not supported; retrying might work' % (len(s)))
 | 
						|
 | 
						|
    def _get_available_subtitles(self, video_id, webpage):
 | 
						|
        try:
 | 
						|
            sub_list = self._download_webpage(
 | 
						|
                'http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
 | 
						|
                video_id, note=False)
 | 
						|
        except ExtractorError as err:
 | 
						|
            self._downloader.report_warning(u'unable to download video subtitles: %s' % compat_str(err))
 | 
						|
            return {}
 | 
						|
        lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
 | 
						|
 | 
						|
        sub_lang_list = {}
 | 
						|
        for l in lang_list:
 | 
						|
            lang = l[1]
 | 
						|
            params = compat_urllib_parse.urlencode({
 | 
						|
                'lang': lang,
 | 
						|
                'v': video_id,
 | 
						|
                'fmt': self._downloader.params.get('subtitlesformat', 'srt'),
 | 
						|
                'name': l[0].encode('utf-8'),
 | 
						|
            })
 | 
						|
            url = u'http://www.youtube.com/api/timedtext?' + params
 | 
						|
            sub_lang_list[lang] = url
 | 
						|
        if not sub_lang_list:
 | 
						|
            self._downloader.report_warning(u'video doesn\'t have subtitles')
 | 
						|
            return {}
 | 
						|
        return sub_lang_list
 | 
						|
 | 
						|
    def _get_available_automatic_caption(self, video_id, webpage):
 | 
						|
        """We need the webpage for getting the captions url, pass it as an
 | 
						|
           argument to speed up the process."""
 | 
						|
        sub_format = self._downloader.params.get('subtitlesformat', 'srt')
 | 
						|
        self.to_screen(u'%s: Looking for automatic captions' % video_id)
 | 
						|
        mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
 | 
						|
        err_msg = u'Couldn\'t find automatic captions for %s' % video_id
 | 
						|
        if mobj is None:
 | 
						|
            self._downloader.report_warning(err_msg)
 | 
						|
            return {}
 | 
						|
        player_config = json.loads(mobj.group(1))
 | 
						|
        try:
 | 
						|
            args = player_config[u'args']
 | 
						|
            caption_url = args[u'ttsurl']
 | 
						|
            timestamp = args[u'timestamp']
 | 
						|
            # We get the available subtitles
 | 
						|
            list_params = compat_urllib_parse.urlencode({
 | 
						|
                'type': 'list',
 | 
						|
                'tlangs': 1,
 | 
						|
                'asrs': 1,
 | 
						|
            })
 | 
						|
            list_url = caption_url + '&' + list_params
 | 
						|
            caption_list = self._download_xml(list_url, video_id)
 | 
						|
            original_lang_node = caption_list.find('track')
 | 
						|
            if original_lang_node is None or original_lang_node.attrib.get('kind') != 'asr' :
 | 
						|
                self._downloader.report_warning(u'Video doesn\'t have automatic captions')
 | 
						|
                return {}
 | 
						|
            original_lang = original_lang_node.attrib['lang_code']
 | 
						|
 | 
						|
            sub_lang_list = {}
 | 
						|
            for lang_node in caption_list.findall('target'):
 | 
						|
                sub_lang = lang_node.attrib['lang_code']
 | 
						|
                params = compat_urllib_parse.urlencode({
 | 
						|
                    'lang': original_lang,
 | 
						|
                    'tlang': sub_lang,
 | 
						|
                    'fmt': sub_format,
 | 
						|
                    'ts': timestamp,
 | 
						|
                    'kind': 'asr',
 | 
						|
                })
 | 
						|
                sub_lang_list[sub_lang] = caption_url + '&' + params
 | 
						|
            return sub_lang_list
 | 
						|
        # An extractor error can be raise by the download process if there are
 | 
						|
        # no automatic captions but there are subtitles
 | 
						|
        except (KeyError, ExtractorError):
 | 
						|
            self._downloader.report_warning(err_msg)
 | 
						|
            return {}
 | 
						|
 | 
						|
    def _print_formats(self, formats):
 | 
						|
        print('Available formats:')
 | 
						|
        for x in formats:
 | 
						|
            print('%s\t:\t%s\t[%s]%s' %(x, self._video_extensions.get(x, 'flv'),
 | 
						|
                                        self._video_dimensions.get(x, '???'),
 | 
						|
                                        ' ('+self._special_itags[x]+')' if x in self._special_itags else ''))
 | 
						|
 | 
						|
    def _extract_id(self, url):
 | 
						|
        mobj = re.match(self._VALID_URL, url, re.VERBOSE)
 | 
						|
        if mobj is None:
 | 
						|
            raise ExtractorError(u'Invalid URL: %s' % url)
 | 
						|
        video_id = mobj.group(2)
 | 
						|
        return video_id
 | 
						|
 | 
						|
    def _get_video_url_list(self, url_map):
 | 
						|
        """
 | 
						|
        Transform a dictionary in the format {itag:url} to a list of (itag, url)
 | 
						|
        with the requested formats.
 | 
						|
        """
 | 
						|
        req_format = self._downloader.params.get('format', None)
 | 
						|
        format_limit = self._downloader.params.get('format_limit', None)
 | 
						|
        available_formats = self._available_formats_prefer_free if self._downloader.params.get('prefer_free_formats', False) else self._available_formats
 | 
						|
        if format_limit is not None and format_limit in available_formats:
 | 
						|
            format_list = available_formats[available_formats.index(format_limit):]
 | 
						|
        else:
 | 
						|
            format_list = available_formats
 | 
						|
        existing_formats = [x for x in format_list if x in url_map]
 | 
						|
        if len(existing_formats) == 0:
 | 
						|
            raise ExtractorError(u'no known formats available for video')
 | 
						|
        if self._downloader.params.get('listformats', None):
 | 
						|
            self._print_formats(existing_formats)
 | 
						|
            return
 | 
						|
        if req_format is None or req_format == 'best':
 | 
						|
            video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
 | 
						|
        elif req_format == 'worst':
 | 
						|
            video_url_list = [(existing_formats[-1], url_map[existing_formats[-1]])] # worst quality
 | 
						|
        elif req_format in ('-1', 'all'):
 | 
						|
            video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
 | 
						|
        else:
 | 
						|
            # Specific formats. We pick the first in a slash-delimeted sequence.
 | 
						|
            # Format can be specified as itag or 'mp4' or 'flv' etc. We pick the highest quality
 | 
						|
            # available in the specified format. For example,
 | 
						|
            # if '1/2/3/4' is requested and '2' and '4' are available, we pick '2'.
 | 
						|
            # if '1/mp4/3/4' is requested and '1' and '5' (is a mp4) are available, we pick '1'.
 | 
						|
            # if '1/mp4/3/4' is requested and '4' and '5' (is a mp4) are available, we pick '5'.
 | 
						|
            req_formats = req_format.split('/')
 | 
						|
            video_url_list = None
 | 
						|
            for rf in req_formats:
 | 
						|
                if rf in url_map:
 | 
						|
                    video_url_list = [(rf, url_map[rf])]
 | 
						|
                    break
 | 
						|
                if rf in self._video_formats_map:
 | 
						|
                    for srf in self._video_formats_map[rf]:
 | 
						|
                        if srf in url_map:
 | 
						|
                            video_url_list = [(srf, url_map[srf])]
 | 
						|
                            break
 | 
						|
                    else:
 | 
						|
                        continue
 | 
						|
                    break
 | 
						|
            if video_url_list is None:
 | 
						|
                raise ExtractorError(u'requested format not available')
 | 
						|
        return video_url_list
 | 
						|
 | 
						|
    def _extract_from_m3u8(self, manifest_url, video_id):
 | 
						|
        url_map = {}
 | 
						|
        def _get_urls(_manifest):
 | 
						|
            lines = _manifest.split('\n')
 | 
						|
            urls = filter(lambda l: l and not l.startswith('#'),
 | 
						|
                            lines)
 | 
						|
            return urls
 | 
						|
        manifest = self._download_webpage(manifest_url, video_id, u'Downloading formats manifest')
 | 
						|
        formats_urls = _get_urls(manifest)
 | 
						|
        for format_url in formats_urls:
 | 
						|
            itag = self._search_regex(r'itag/(\d+?)/', format_url, 'itag')
 | 
						|
            url_map[itag] = format_url
 | 
						|
        return url_map
 | 
						|
 | 
						|
    def _extract_annotations(self, video_id):
 | 
						|
        url = 'https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=%s' % video_id
 | 
						|
        return self._download_webpage(url, video_id, note=u'Searching for annotations.', errnote=u'Unable to download video annotations.')
 | 
						|
 | 
						|
    def _real_extract(self, url):
 | 
						|
        # Extract original video URL from URL with redirection, like age verification, using next_url parameter
 | 
						|
        mobj = re.search(self._NEXT_URL_RE, url)
 | 
						|
        if mobj:
 | 
						|
            url = 'https://www.youtube.com/' + compat_urllib_parse.unquote(mobj.group(1)).lstrip('/')
 | 
						|
        video_id = self._extract_id(url)
 | 
						|
 | 
						|
        # Get video webpage
 | 
						|
        url = 'https://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1' % video_id
 | 
						|
        video_webpage = self._download_webpage(url, video_id)
 | 
						|
 | 
						|
        # Attempt to extract SWF player URL
 | 
						|
        mobj = re.search(r'swfConfig.*?"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
 | 
						|
        if mobj is not None:
 | 
						|
            player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
 | 
						|
        else:
 | 
						|
            player_url = None
 | 
						|
 | 
						|
        # Get video info
 | 
						|
        self.report_video_info_webpage_download(video_id)
 | 
						|
        if re.search(r'player-age-gate-content">', video_webpage) is not None:
 | 
						|
            self.report_age_confirmation()
 | 
						|
            age_gate = True
 | 
						|
            # We simulate the access to the video from www.youtube.com/v/{video_id}
 | 
						|
            # this can be viewed without login into Youtube
 | 
						|
            data = compat_urllib_parse.urlencode({'video_id': video_id,
 | 
						|
                                                  'el': 'player_embedded',
 | 
						|
                                                  'gl': 'US',
 | 
						|
                                                  'hl': 'en',
 | 
						|
                                                  'eurl': 'https://youtube.googleapis.com/v/' + video_id,
 | 
						|
                                                  'asv': 3,
 | 
						|
                                                  'sts':'1588',
 | 
						|
                                                  })
 | 
						|
            video_info_url = 'https://www.youtube.com/get_video_info?' + data
 | 
						|
            video_info_webpage = self._download_webpage(video_info_url, video_id,
 | 
						|
                                    note=False,
 | 
						|
                                    errnote='unable to download video info webpage')
 | 
						|
            video_info = compat_parse_qs(video_info_webpage)
 | 
						|
        else:
 | 
						|
            age_gate = False
 | 
						|
            for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
 | 
						|
                video_info_url = ('https://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
 | 
						|
                        % (video_id, el_type))
 | 
						|
                video_info_webpage = self._download_webpage(video_info_url, video_id,
 | 
						|
                                        note=False,
 | 
						|
                                        errnote='unable to download video info webpage')
 | 
						|
                video_info = compat_parse_qs(video_info_webpage)
 | 
						|
                if 'token' in video_info:
 | 
						|
                    break
 | 
						|
        if 'token' not in video_info:
 | 
						|
            if 'reason' in video_info:
 | 
						|
                raise ExtractorError(u'YouTube said: %s' % video_info['reason'][0], expected=True)
 | 
						|
            else:
 | 
						|
                raise ExtractorError(u'"token" parameter not in video info for unknown reason')
 | 
						|
 | 
						|
        if 'view_count' in video_info:
 | 
						|
            view_count = int(video_info['view_count'][0])
 | 
						|
        else:
 | 
						|
            view_count = None
 | 
						|
 | 
						|
        # Check for "rental" videos
 | 
						|
        if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
 | 
						|
            raise ExtractorError(u'"rental" videos not supported')
 | 
						|
 | 
						|
        # Start extracting information
 | 
						|
        self.report_information_extraction(video_id)
 | 
						|
 | 
						|
        # uploader
 | 
						|
        if 'author' not in video_info:
 | 
						|
            raise ExtractorError(u'Unable to extract uploader name')
 | 
						|
        video_uploader = compat_urllib_parse.unquote_plus(video_info['author'][0])
 | 
						|
 | 
						|
        # uploader_id
 | 
						|
        video_uploader_id = None
 | 
						|
        mobj = re.search(r'<link itemprop="url" href="http://www.youtube.com/(?:user|channel)/([^"]+)">', video_webpage)
 | 
						|
        if mobj is not None:
 | 
						|
            video_uploader_id = mobj.group(1)
 | 
						|
        else:
 | 
						|
            self._downloader.report_warning(u'unable to extract uploader nickname')
 | 
						|
 | 
						|
        # title
 | 
						|
        if 'title' in video_info:
 | 
						|
            video_title = compat_urllib_parse.unquote_plus(video_info['title'][0])
 | 
						|
        else:
 | 
						|
            self._downloader.report_warning(u'Unable to extract video title')
 | 
						|
            video_title = u'_'
 | 
						|
 | 
						|
        # thumbnail image
 | 
						|
        # We try first to get a high quality image:
 | 
						|
        m_thumb = re.search(r'<span itemprop="thumbnail".*?href="(.*?)">',
 | 
						|
                            video_webpage, re.DOTALL)
 | 
						|
        if m_thumb is not None:
 | 
						|
            video_thumbnail = m_thumb.group(1)
 | 
						|
        elif 'thumbnail_url' not in video_info:
 | 
						|
            self._downloader.report_warning(u'unable to extract video thumbnail')
 | 
						|
            video_thumbnail = None
 | 
						|
        else:   # don't panic if we can't find it
 | 
						|
            video_thumbnail = compat_urllib_parse.unquote_plus(video_info['thumbnail_url'][0])
 | 
						|
 | 
						|
        # upload date
 | 
						|
        upload_date = None
 | 
						|
        mobj = re.search(r'id="eow-date.*?>(.*?)</span>', video_webpage, re.DOTALL)
 | 
						|
        if mobj is not None:
 | 
						|
            upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
 | 
						|
            upload_date = unified_strdate(upload_date)
 | 
						|
 | 
						|
        # description
 | 
						|
        video_description = get_element_by_id("eow-description", video_webpage)
 | 
						|
        if video_description:
 | 
						|
            video_description = re.sub(r'''(?x)
 | 
						|
                <a\s+
 | 
						|
                    (?:[a-zA-Z-]+="[^"]+"\s+)*?
 | 
						|
                    title="([^"]+)"\s+
 | 
						|
                    (?:[a-zA-Z-]+="[^"]+"\s+)*?
 | 
						|
                    class="yt-uix-redirect-link"\s*>
 | 
						|
                [^<]+
 | 
						|
                </a>
 | 
						|
            ''', r'\1', video_description)
 | 
						|
            video_description = clean_html(video_description)
 | 
						|
        else:
 | 
						|
            fd_mobj = re.search(r'<meta name="description" content="([^"]+)"', video_webpage)
 | 
						|
            if fd_mobj:
 | 
						|
                video_description = unescapeHTML(fd_mobj.group(1))
 | 
						|
            else:
 | 
						|
                video_description = u''
 | 
						|
 | 
						|
        def _extract_count(klass):
 | 
						|
            count = self._search_regex(r'class="%s">([\d,]+)</span>' % re.escape(klass), video_webpage, klass, fatal=False)
 | 
						|
            if count is not None:
 | 
						|
                return int(count.replace(',', ''))
 | 
						|
            return None
 | 
						|
        like_count = _extract_count(u'likes-count')
 | 
						|
        dislike_count = _extract_count(u'dislikes-count')
 | 
						|
 | 
						|
        # subtitles
 | 
						|
        video_subtitles = self.extract_subtitles(video_id, video_webpage)
 | 
						|
 | 
						|
        if self._downloader.params.get('listsubtitles', False):
 | 
						|
            self._list_available_subtitles(video_id, video_webpage)
 | 
						|
            return
 | 
						|
 | 
						|
        if 'length_seconds' not in video_info:
 | 
						|
            self._downloader.report_warning(u'unable to extract video duration')
 | 
						|
            video_duration = ''
 | 
						|
        else:
 | 
						|
            video_duration = compat_urllib_parse.unquote_plus(video_info['length_seconds'][0])
 | 
						|
 | 
						|
        # annotations
 | 
						|
        video_annotations = None
 | 
						|
        if self._downloader.params.get('writeannotations', False):
 | 
						|
                video_annotations = self._extract_annotations(video_id)
 | 
						|
 | 
						|
        # Decide which formats to download
 | 
						|
 | 
						|
        try:
 | 
						|
            mobj = re.search(r';ytplayer.config = ({.*?});', video_webpage)
 | 
						|
            if not mobj:
 | 
						|
                raise ValueError('Could not find vevo ID')
 | 
						|
            info = json.loads(mobj.group(1))
 | 
						|
            args = info['args']
 | 
						|
            # Easy way to know if the 's' value is in url_encoded_fmt_stream_map
 | 
						|
            # this signatures are encrypted
 | 
						|
            if 'url_encoded_fmt_stream_map' not in args:
 | 
						|
                raise ValueError(u'No stream_map present')  # caught below
 | 
						|
            re_signature = re.compile(r'[&,]s=')
 | 
						|
            m_s = re_signature.search(args['url_encoded_fmt_stream_map'])
 | 
						|
            if m_s is not None:
 | 
						|
                self.to_screen(u'%s: Encrypted signatures detected.' % video_id)
 | 
						|
                video_info['url_encoded_fmt_stream_map'] = [args['url_encoded_fmt_stream_map']]
 | 
						|
            m_s = re_signature.search(args.get('adaptive_fmts', u''))
 | 
						|
            if m_s is not None:
 | 
						|
                if 'adaptive_fmts' in video_info:
 | 
						|
                    video_info['adaptive_fmts'][0] += ',' + args['adaptive_fmts']
 | 
						|
                else:
 | 
						|
                    video_info['adaptive_fmts'] = [args['adaptive_fmts']]
 | 
						|
        except ValueError:
 | 
						|
            pass
 | 
						|
 | 
						|
        if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
 | 
						|
            self.report_rtmp_download()
 | 
						|
            video_url_list = [(None, video_info['conn'][0])]
 | 
						|
        elif len(video_info.get('url_encoded_fmt_stream_map', [])) >= 1 or len(video_info.get('adaptive_fmts', [])) >= 1:
 | 
						|
            encoded_url_map = video_info.get('url_encoded_fmt_stream_map', [''])[0] + ',' + video_info.get('adaptive_fmts',[''])[0]
 | 
						|
            if 'rtmpe%3Dyes' in encoded_url_map:
 | 
						|
                raise ExtractorError('rtmpe downloads are not supported, see https://github.com/rg3/youtube-dl/issues/343 for more information.', expected=True)
 | 
						|
            url_map = {}
 | 
						|
            for url_data_str in encoded_url_map.split(','):
 | 
						|
                url_data = compat_parse_qs(url_data_str)
 | 
						|
                if 'itag' in url_data and 'url' in url_data:
 | 
						|
                    url = url_data['url'][0]
 | 
						|
                    if 'sig' in url_data:
 | 
						|
                        url += '&signature=' + url_data['sig'][0]
 | 
						|
                    elif 's' in url_data:
 | 
						|
                        encrypted_sig = url_data['s'][0]
 | 
						|
                        if self._downloader.params.get('verbose'):
 | 
						|
                            if age_gate:
 | 
						|
                                if player_url is None:
 | 
						|
                                    player_version = 'unknown'
 | 
						|
                                else:
 | 
						|
                                    player_version = self._search_regex(
 | 
						|
                                        r'-(.+)\.swf$', player_url,
 | 
						|
                                        u'flash player', fatal=False)
 | 
						|
                                player_desc = 'flash player %s' % player_version
 | 
						|
                            else:
 | 
						|
                                player_version = self._search_regex(
 | 
						|
                                    r'html5player-(.+?)\.js', video_webpage,
 | 
						|
                                    'html5 player', fatal=False)
 | 
						|
                                player_desc = u'html5 player %s' % player_version
 | 
						|
 | 
						|
                            parts_sizes = u'.'.join(compat_str(len(part)) for part in encrypted_sig.split('.'))
 | 
						|
                            self.to_screen(u'encrypted signature length %d (%s), itag %s, %s' %
 | 
						|
                                (len(encrypted_sig), parts_sizes, url_data['itag'][0], player_desc))
 | 
						|
 | 
						|
                        if not age_gate:
 | 
						|
                            jsplayer_url_json = self._search_regex(
 | 
						|
                                r'"assets":.+?"js":\s*("[^"]+")',
 | 
						|
                                video_webpage, u'JS player URL')
 | 
						|
                            player_url = json.loads(jsplayer_url_json)
 | 
						|
 | 
						|
                        signature = self._decrypt_signature(
 | 
						|
                            encrypted_sig, video_id, player_url, age_gate)
 | 
						|
                        url += '&signature=' + signature
 | 
						|
                    if 'ratebypass' not in url:
 | 
						|
                        url += '&ratebypass=yes'
 | 
						|
                    url_map[url_data['itag'][0]] = url
 | 
						|
            video_url_list = self._get_video_url_list(url_map)
 | 
						|
            if not video_url_list:
 | 
						|
                return
 | 
						|
        elif video_info.get('hlsvp'):
 | 
						|
            manifest_url = video_info['hlsvp'][0]
 | 
						|
            url_map = self._extract_from_m3u8(manifest_url, video_id)
 | 
						|
            video_url_list = self._get_video_url_list(url_map)
 | 
						|
            if not video_url_list:
 | 
						|
                return
 | 
						|
 | 
						|
        else:
 | 
						|
            raise ExtractorError(u'no conn, hlsvp or url_encoded_fmt_stream_map information found in video info')
 | 
						|
 | 
						|
        results = []
 | 
						|
        for itag, video_real_url in video_url_list:
 | 
						|
            # Extension
 | 
						|
            video_extension = self._video_extensions.get(itag, 'flv')
 | 
						|
 | 
						|
            video_format = '{0} - {1}{2}'.format(itag if itag else video_extension,
 | 
						|
                                              self._video_dimensions.get(itag, '???'),
 | 
						|
                                              ' ('+self._special_itags[itag]+')' if itag in self._special_itags else '')
 | 
						|
 | 
						|
            results.append({
 | 
						|
                'id':       video_id,
 | 
						|
                'url':      video_real_url,
 | 
						|
                'uploader': video_uploader,
 | 
						|
                'uploader_id': video_uploader_id,
 | 
						|
                'upload_date':  upload_date,
 | 
						|
                'title':    video_title,
 | 
						|
                'ext':      video_extension,
 | 
						|
                'format':   video_format,
 | 
						|
                'format_id': itag,
 | 
						|
                'thumbnail':    video_thumbnail,
 | 
						|
                'description':  video_description,
 | 
						|
                'player_url':   player_url,
 | 
						|
                'subtitles':    video_subtitles,
 | 
						|
                'duration':     video_duration,
 | 
						|
                'age_limit':    18 if age_gate else 0,
 | 
						|
                'annotations':  video_annotations,
 | 
						|
                'webpage_url': 'https://www.youtube.com/watch?v=%s' % video_id,
 | 
						|
                'view_count': view_count,
 | 
						|
                'like_count': like_count,
 | 
						|
                'dislike_count': dislike_count,
 | 
						|
            })
 | 
						|
        return results
 | 
						|
 | 
						|
class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
 | 
						|
    IE_DESC = u'YouTube.com playlists'
 | 
						|
    _VALID_URL = r"""(?:
 | 
						|
                        (?:https?://)?
 | 
						|
                        (?:\w+\.)?
 | 
						|
                        youtube\.com/
 | 
						|
                        (?:
 | 
						|
                           (?:course|view_play_list|my_playlists|artist|playlist|watch)
 | 
						|
                           \? (?:.*?&)*? (?:p|a|list)=
 | 
						|
                        |  p/
 | 
						|
                        )
 | 
						|
                        ((?:PL|EC|UU|FL|RD)?[0-9A-Za-z-_]{10,})
 | 
						|
                        .*
 | 
						|
                     |
 | 
						|
                        ((?:PL|EC|UU|FL|RD)[0-9A-Za-z-_]{10,})
 | 
						|
                     )"""
 | 
						|
    _TEMPLATE_URL = 'https://www.youtube.com/playlist?list=%s&page=%s'
 | 
						|
    _MORE_PAGES_INDICATOR = r'data-link-type="next"'
 | 
						|
    _VIDEO_RE = r'href="/watch\?v=(?P<id>[0-9A-Za-z_-]{11})&[^"]*?index=(?P<index>\d+)'
 | 
						|
    IE_NAME = u'youtube:playlist'
 | 
						|
 | 
						|
    @classmethod
 | 
						|
    def suitable(cls, url):
 | 
						|
        """Receives a URL and returns True if suitable for this IE."""
 | 
						|
        return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
 | 
						|
 | 
						|
    def _real_initialize(self):
 | 
						|
        self._login()
 | 
						|
 | 
						|
    def _ids_to_results(self, ids):
 | 
						|
        return [self.url_result(vid_id, 'Youtube', video_id=vid_id)
 | 
						|
                       for vid_id in ids]
 | 
						|
 | 
						|
    def _extract_mix(self, playlist_id):
 | 
						|
        # The mixes are generated from a a single video
 | 
						|
        # the id of the playlist is just 'RD' + video_id
 | 
						|
        url = 'https://youtube.com/watch?v=%s&list=%s' % (playlist_id[-11:], playlist_id)
 | 
						|
        webpage = self._download_webpage(url, playlist_id, u'Downloading Youtube mix')
 | 
						|
        title_span = (get_element_by_attribute('class', 'title long-title', webpage) or
 | 
						|
            get_element_by_attribute('class', 'title ', webpage))
 | 
						|
        title = clean_html(title_span)
 | 
						|
        video_re = r'data-index="\d+".*?href="/watch\?v=([0-9A-Za-z_-]{11})&[^"]*?list=%s' % re.escape(playlist_id)
 | 
						|
        ids = orderedSet(re.findall(video_re, webpage))
 | 
						|
        url_results = self._ids_to_results(ids)
 | 
						|
 | 
						|
        return self.playlist_result(url_results, playlist_id, title)
 | 
						|
 | 
						|
    def _real_extract(self, url):
 | 
						|
        # Extract playlist id
 | 
						|
        mobj = re.match(self._VALID_URL, url, re.VERBOSE)
 | 
						|
        if mobj is None:
 | 
						|
            raise ExtractorError(u'Invalid URL: %s' % url)
 | 
						|
        playlist_id = mobj.group(1) or mobj.group(2)
 | 
						|
 | 
						|
        # Check if it's a video-specific URL
 | 
						|
        query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
 | 
						|
        if 'v' in query_dict:
 | 
						|
            video_id = query_dict['v'][0]
 | 
						|
            if self._downloader.params.get('noplaylist'):
 | 
						|
                self.to_screen(u'Downloading just video %s because of --no-playlist' % video_id)
 | 
						|
                return self.url_result(video_id, 'Youtube', video_id=video_id)
 | 
						|
            else:
 | 
						|
                self.to_screen(u'Downloading playlist PL%s - add --no-playlist to just download video %s' % (playlist_id, video_id))
 | 
						|
 | 
						|
        if playlist_id.startswith('RD'):
 | 
						|
            # Mixes require a custom extraction process
 | 
						|
            return self._extract_mix(playlist_id)
 | 
						|
        if playlist_id.startswith('TL'):
 | 
						|
            raise ExtractorError(u'For downloading YouTube.com top lists, use '
 | 
						|
                u'the "yttoplist" keyword, for example "youtube-dl \'yttoplist:music:Top Tracks\'"', expected=True)
 | 
						|
 | 
						|
        # Extract the video ids from the playlist pages
 | 
						|
        ids = []
 | 
						|
 | 
						|
        for page_num in itertools.count(1):
 | 
						|
            url = self._TEMPLATE_URL % (playlist_id, page_num)
 | 
						|
            page = self._download_webpage(url, playlist_id, u'Downloading page #%s' % page_num)
 | 
						|
            matches = re.finditer(self._VIDEO_RE, page)
 | 
						|
            # We remove the duplicates and the link with index 0
 | 
						|
            # (it's not the first video of the playlist)
 | 
						|
            new_ids = orderedSet(m.group('id') for m in matches if m.group('index') != '0')
 | 
						|
            ids.extend(new_ids)
 | 
						|
 | 
						|
            if re.search(self._MORE_PAGES_INDICATOR, page) is None:
 | 
						|
                break
 | 
						|
 | 
						|
        playlist_title = self._og_search_title(page)
 | 
						|
 | 
						|
        url_results = self._ids_to_results(ids)
 | 
						|
        return self.playlist_result(url_results, playlist_id, playlist_title)
 | 
						|
 | 
						|
 | 
						|
class YoutubeTopListIE(YoutubePlaylistIE):
 | 
						|
    IE_NAME = u'youtube:toplist'
 | 
						|
    IE_DESC = (u'YouTube.com top lists, "yttoplist:{channel}:{list title}"'
 | 
						|
        u' (Example: "yttoplist:music:Top Tracks")')
 | 
						|
    _VALID_URL = r'yttoplist:(?P<chann>.*?):(?P<title>.*?)$'
 | 
						|
 | 
						|
    def _real_extract(self, url):
 | 
						|
        mobj = re.match(self._VALID_URL, url)
 | 
						|
        channel = mobj.group('chann')
 | 
						|
        title = mobj.group('title')
 | 
						|
        query = compat_urllib_parse.urlencode({'title': title})
 | 
						|
        playlist_re = 'href="([^"]+?%s[^"]+?)"' % re.escape(query)
 | 
						|
        channel_page = self._download_webpage('https://www.youtube.com/%s' % channel, title)
 | 
						|
        link = self._html_search_regex(playlist_re, channel_page, u'list')
 | 
						|
        url = compat_urlparse.urljoin('https://www.youtube.com/', link)
 | 
						|
        
 | 
						|
        video_re = r'data-index="\d+".*?data-video-id="([0-9A-Za-z_-]{11})"'
 | 
						|
        ids = []
 | 
						|
        # sometimes the webpage doesn't contain the videos
 | 
						|
        # retry until we get them
 | 
						|
        for i in itertools.count(0):
 | 
						|
            msg = u'Downloading Youtube mix'
 | 
						|
            if i > 0:
 | 
						|
                msg += ', retry #%d' % i
 | 
						|
            webpage = self._download_webpage(url, title, msg)
 | 
						|
            ids = orderedSet(re.findall(video_re, webpage))
 | 
						|
            if ids:
 | 
						|
                break
 | 
						|
        url_results = self._ids_to_results(ids)
 | 
						|
        return self.playlist_result(url_results, playlist_title=title)
 | 
						|
 | 
						|
 | 
						|
class YoutubeChannelIE(InfoExtractor):
 | 
						|
    IE_DESC = u'YouTube.com channels'
 | 
						|
    _VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)"
 | 
						|
    _MORE_PAGES_INDICATOR = 'yt-uix-load-more'
 | 
						|
    _MORE_PAGES_URL = 'http://www.youtube.com/c4_browse_ajax?action_load_more_videos=1&flow=list&paging=%s&view=0&sort=da&channel_id=%s'
 | 
						|
    IE_NAME = u'youtube:channel'
 | 
						|
 | 
						|
    def extract_videos_from_page(self, page):
 | 
						|
        ids_in_page = []
 | 
						|
        for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&?', page):
 | 
						|
            if mobj.group(1) not in ids_in_page:
 | 
						|
                ids_in_page.append(mobj.group(1))
 | 
						|
        return ids_in_page
 | 
						|
 | 
						|
    def _real_extract(self, url):
 | 
						|
        # Extract channel id
 | 
						|
        mobj = re.match(self._VALID_URL, url)
 | 
						|
        if mobj is None:
 | 
						|
            raise ExtractorError(u'Invalid URL: %s' % url)
 | 
						|
 | 
						|
        # Download channel page
 | 
						|
        channel_id = mobj.group(1)
 | 
						|
        video_ids = []
 | 
						|
        url = 'https://www.youtube.com/channel/%s/videos' % channel_id
 | 
						|
        channel_page = self._download_webpage(url, channel_id)
 | 
						|
        autogenerated = re.search(r'''(?x)
 | 
						|
                class="[^"]*?(?:
 | 
						|
                    channel-header-autogenerated-label|
 | 
						|
                    yt-channel-title-autogenerated
 | 
						|
                )[^"]*"''', channel_page) is not None
 | 
						|
 | 
						|
        if autogenerated:
 | 
						|
            # The videos are contained in a single page
 | 
						|
            # the ajax pages can't be used, they are empty
 | 
						|
            video_ids = self.extract_videos_from_page(channel_page)
 | 
						|
        else:
 | 
						|
            # Download all channel pages using the json-based channel_ajax query
 | 
						|
            for pagenum in itertools.count(1):
 | 
						|
                url = self._MORE_PAGES_URL % (pagenum, channel_id)
 | 
						|
                page = self._download_webpage(url, channel_id,
 | 
						|
                                              u'Downloading page #%s' % pagenum)
 | 
						|
    
 | 
						|
                page = json.loads(page)
 | 
						|
    
 | 
						|
                ids_in_page = self.extract_videos_from_page(page['content_html'])
 | 
						|
                video_ids.extend(ids_in_page)
 | 
						|
    
 | 
						|
                if self._MORE_PAGES_INDICATOR not in page['load_more_widget_html']:
 | 
						|
                    break
 | 
						|
 | 
						|
        self._downloader.to_screen(u'[youtube] Channel %s: Found %i videos' % (channel_id, len(video_ids)))
 | 
						|
 | 
						|
        url_entries = [self.url_result(video_id, 'Youtube', video_id=video_id)
 | 
						|
                       for video_id in video_ids]
 | 
						|
        return self.playlist_result(url_entries, channel_id)
 | 
						|
 | 
						|
 | 
						|
class YoutubeUserIE(InfoExtractor):
 | 
						|
    IE_DESC = u'YouTube.com user videos (URL or "ytuser" keyword)'
 | 
						|
    _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:user/)?(?!(?:attribution_link|watch)(?:$|[^a-z_A-Z0-9-])))|ytuser:)(?!feed/)([A-Za-z0-9_-]+)'
 | 
						|
    _TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
 | 
						|
    _GDATA_PAGE_SIZE = 50
 | 
						|
    _GDATA_URL = 'http://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d&alt=json'
 | 
						|
    IE_NAME = u'youtube:user'
 | 
						|
 | 
						|
    @classmethod
 | 
						|
    def suitable(cls, url):
 | 
						|
        # Don't return True if the url can be extracted with other youtube
 | 
						|
        # extractor, the regex would is too permissive and it would match.
 | 
						|
        other_ies = iter(klass for (name, klass) in globals().items() if name.endswith('IE') and klass is not cls)
 | 
						|
        if any(ie.suitable(url) for ie in other_ies): return False
 | 
						|
        else: return super(YoutubeUserIE, cls).suitable(url)
 | 
						|
 | 
						|
    def _real_extract(self, url):
 | 
						|
        # Extract username
 | 
						|
        mobj = re.match(self._VALID_URL, url)
 | 
						|
        if mobj is None:
 | 
						|
            raise ExtractorError(u'Invalid URL: %s' % url)
 | 
						|
 | 
						|
        username = mobj.group(1)
 | 
						|
 | 
						|
        # Download video ids using YouTube Data API. Result size per
 | 
						|
        # query is limited (currently to 50 videos) so we need to query
 | 
						|
        # page by page until there are no video ids - it means we got
 | 
						|
        # all of them.
 | 
						|
 | 
						|
        video_ids = []
 | 
						|
 | 
						|
        for pagenum in itertools.count(0):
 | 
						|
            start_index = pagenum * self._GDATA_PAGE_SIZE + 1
 | 
						|
 | 
						|
            gdata_url = self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index)
 | 
						|
            page = self._download_webpage(gdata_url, username,
 | 
						|
                                          u'Downloading video ids from %d to %d' % (start_index, start_index + self._GDATA_PAGE_SIZE))
 | 
						|
 | 
						|
            try:
 | 
						|
                response = json.loads(page)
 | 
						|
            except ValueError as err:
 | 
						|
                raise ExtractorError(u'Invalid JSON in API response: ' + compat_str(err))
 | 
						|
            if 'entry' not in response['feed']:
 | 
						|
                # Number of videos is a multiple of self._MAX_RESULTS
 | 
						|
                break
 | 
						|
 | 
						|
            # Extract video identifiers
 | 
						|
            ids_in_page = []
 | 
						|
            for entry in response['feed']['entry']:
 | 
						|
                ids_in_page.append(entry['id']['$t'].split('/')[-1])
 | 
						|
            video_ids.extend(ids_in_page)
 | 
						|
 | 
						|
            # A little optimization - if current page is not
 | 
						|
            # "full", ie. does not contain PAGE_SIZE video ids then
 | 
						|
            # we can assume that this page is the last one - there
 | 
						|
            # are no more ids on further pages - no need to query
 | 
						|
            # again.
 | 
						|
 | 
						|
            if len(ids_in_page) < self._GDATA_PAGE_SIZE:
 | 
						|
                break
 | 
						|
 | 
						|
        url_results = [
 | 
						|
            self.url_result(video_id, 'Youtube', video_id=video_id)
 | 
						|
            for video_id in video_ids]
 | 
						|
        return self.playlist_result(url_results, playlist_title=username)
 | 
						|
 | 
						|
 | 
						|
class YoutubeSearchIE(SearchInfoExtractor):
 | 
						|
    IE_DESC = u'YouTube.com searches'
 | 
						|
    _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc'
 | 
						|
    _MAX_RESULTS = 1000
 | 
						|
    IE_NAME = u'youtube:search'
 | 
						|
    _SEARCH_KEY = 'ytsearch'
 | 
						|
 | 
						|
    def _get_n_results(self, query, n):
 | 
						|
        """Get a specified number of results for a query"""
 | 
						|
 | 
						|
        video_ids = []
 | 
						|
        pagenum = 0
 | 
						|
        limit = n
 | 
						|
 | 
						|
        while (50 * pagenum) < limit:
 | 
						|
            result_url = self._API_URL % (compat_urllib_parse.quote_plus(query), (50*pagenum)+1)
 | 
						|
            data_json = self._download_webpage(
 | 
						|
                result_url, video_id=u'query "%s"' % query,
 | 
						|
                note=u'Downloading page %s' % (pagenum + 1),
 | 
						|
                errnote=u'Unable to download API page')
 | 
						|
            data = json.loads(data_json)
 | 
						|
            api_response = data['data']
 | 
						|
 | 
						|
            if 'items' not in api_response:
 | 
						|
                raise ExtractorError(u'[youtube] No video results')
 | 
						|
 | 
						|
            new_ids = list(video['id'] for video in api_response['items'])
 | 
						|
            video_ids += new_ids
 | 
						|
 | 
						|
            limit = min(n, api_response['totalItems'])
 | 
						|
            pagenum += 1
 | 
						|
 | 
						|
        if len(video_ids) > n:
 | 
						|
            video_ids = video_ids[:n]
 | 
						|
        videos = [self.url_result(video_id, 'Youtube', video_id=video_id)
 | 
						|
                  for video_id in video_ids]
 | 
						|
        return self.playlist_result(videos, query)
 | 
						|
 | 
						|
class YoutubeSearchDateIE(YoutubeSearchIE):
 | 
						|
    IE_NAME = YoutubeSearchIE.IE_NAME + ':date'
 | 
						|
    _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc&orderby=published'
 | 
						|
    _SEARCH_KEY = 'ytsearchdate'
 | 
						|
    IE_DESC = u'YouTube.com searches, newest videos first'
 | 
						|
 | 
						|
class YoutubeShowIE(InfoExtractor):
 | 
						|
    IE_DESC = u'YouTube.com (multi-season) shows'
 | 
						|
    _VALID_URL = r'https?://www\.youtube\.com/show/(.*)'
 | 
						|
    IE_NAME = u'youtube:show'
 | 
						|
 | 
						|
    def _real_extract(self, url):
 | 
						|
        mobj = re.match(self._VALID_URL, url)
 | 
						|
        show_name = mobj.group(1)
 | 
						|
        webpage = self._download_webpage(url, show_name, u'Downloading show webpage')
 | 
						|
        # There's one playlist for each season of the show
 | 
						|
        m_seasons = list(re.finditer(r'href="(/playlist\?list=.*?)"', webpage))
 | 
						|
        self.to_screen(u'%s: Found %s seasons' % (show_name, len(m_seasons)))
 | 
						|
        return [self.url_result('https://www.youtube.com' + season.group(1), 'YoutubePlaylist') for season in m_seasons]
 | 
						|
 | 
						|
 | 
						|
class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
 | 
						|
    """
 | 
						|
    Base class for extractors that fetch info from
 | 
						|
    http://www.youtube.com/feed_ajax
 | 
						|
    Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties.
 | 
						|
    """
 | 
						|
    _LOGIN_REQUIRED = True
 | 
						|
    # use action_load_personal_feed instead of action_load_system_feed
 | 
						|
    _PERSONAL_FEED = False
 | 
						|
 | 
						|
    @property
 | 
						|
    def _FEED_TEMPLATE(self):
 | 
						|
        action = 'action_load_system_feed'
 | 
						|
        if self._PERSONAL_FEED:
 | 
						|
            action = 'action_load_personal_feed'
 | 
						|
        return 'http://www.youtube.com/feed_ajax?%s=1&feed_name=%s&paging=%%s' % (action, self._FEED_NAME)
 | 
						|
 | 
						|
    @property
 | 
						|
    def IE_NAME(self):
 | 
						|
        return u'youtube:%s' % self._FEED_NAME
 | 
						|
 | 
						|
    def _real_initialize(self):
 | 
						|
        self._login()
 | 
						|
 | 
						|
    def _real_extract(self, url):
 | 
						|
        feed_entries = []
 | 
						|
        paging = 0
 | 
						|
        for i in itertools.count(1):
 | 
						|
            info = self._download_webpage(self._FEED_TEMPLATE % paging,
 | 
						|
                                          u'%s feed' % self._FEED_NAME,
 | 
						|
                                          u'Downloading page %s' % i)
 | 
						|
            info = json.loads(info)
 | 
						|
            feed_html = info['feed_html']
 | 
						|
            m_ids = re.finditer(r'"/watch\?v=(.*?)["&]', feed_html)
 | 
						|
            ids = orderedSet(m.group(1) for m in m_ids)
 | 
						|
            feed_entries.extend(
 | 
						|
                self.url_result(video_id, 'Youtube', video_id=video_id)
 | 
						|
                for video_id in ids)
 | 
						|
            if info['paging'] is None:
 | 
						|
                break
 | 
						|
            paging = info['paging']
 | 
						|
        return self.playlist_result(feed_entries, playlist_title=self._PLAYLIST_TITLE)
 | 
						|
 | 
						|
class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor):
 | 
						|
    IE_DESC = u'YouTube.com subscriptions feed, "ytsubs" keyword(requires authentication)'
 | 
						|
    _VALID_URL = r'https?://www\.youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
 | 
						|
    _FEED_NAME = 'subscriptions'
 | 
						|
    _PLAYLIST_TITLE = u'Youtube Subscriptions'
 | 
						|
 | 
						|
class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
 | 
						|
    IE_DESC = u'YouTube.com recommended videos, "ytrec" keyword (requires authentication)'
 | 
						|
    _VALID_URL = r'https?://www\.youtube\.com/feed/recommended|:ytrec(?:ommended)?'
 | 
						|
    _FEED_NAME = 'recommended'
 | 
						|
    _PLAYLIST_TITLE = u'Youtube Recommended videos'
 | 
						|
 | 
						|
class YoutubeWatchLaterIE(YoutubeFeedsInfoExtractor):
 | 
						|
    IE_DESC = u'Youtube watch later list, "ytwatchlater" keyword (requires authentication)'
 | 
						|
    _VALID_URL = r'https?://www\.youtube\.com/feed/watch_later|:ytwatchlater'
 | 
						|
    _FEED_NAME = 'watch_later'
 | 
						|
    _PLAYLIST_TITLE = u'Youtube Watch Later'
 | 
						|
    _PERSONAL_FEED = True
 | 
						|
 | 
						|
class YoutubeHistoryIE(YoutubeFeedsInfoExtractor):
 | 
						|
    IE_DESC = u'Youtube watch history, "ythistory" keyword (requires authentication)'
 | 
						|
    _VALID_URL = u'https?://www\.youtube\.com/feed/history|:ythistory'
 | 
						|
    _FEED_NAME = 'history'
 | 
						|
    _PERSONAL_FEED = True
 | 
						|
    _PLAYLIST_TITLE = u'Youtube Watch History'
 | 
						|
 | 
						|
class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
 | 
						|
    IE_NAME = u'youtube:favorites'
 | 
						|
    IE_DESC = u'YouTube.com favourite videos, "ytfav" keyword (requires authentication)'
 | 
						|
    _VALID_URL = r'https?://www\.youtube\.com/my_favorites|:ytfav(?:ou?rites)?'
 | 
						|
    _LOGIN_REQUIRED = True
 | 
						|
 | 
						|
    def _real_extract(self, url):
 | 
						|
        webpage = self._download_webpage('https://www.youtube.com/my_favorites', 'Youtube Favourites videos')
 | 
						|
        playlist_id = self._search_regex(r'list=(.+?)["&]', webpage, u'favourites playlist id')
 | 
						|
        return self.url_result(playlist_id, 'YoutubePlaylist')
 | 
						|
 | 
						|
 | 
						|
class YoutubeTruncatedURLIE(InfoExtractor):
 | 
						|
    IE_NAME = 'youtube:truncated_url'
 | 
						|
    IE_DESC = False  # Do not list
 | 
						|
    _VALID_URL = r'(?:https?://)?[^/]+/watch\?feature=[a-z_]+$'
 | 
						|
 | 
						|
    def _real_extract(self, url):
 | 
						|
        raise ExtractorError(
 | 
						|
            u'Did you forget to quote the URL? Remember that & is a meta '
 | 
						|
            u'character in most shells, so you want to put the URL in quotes, '
 | 
						|
            u'like  youtube-dl '
 | 
						|
            u'\'http://www.youtube.com/watch?feature=foo&v=BaW_jenozKc\''
 | 
						|
            u' (or simply  youtube-dl BaW_jenozKc  ).',
 | 
						|
            expected=True)
 |