_ Git - youtube-dl/blob - youtube_dl/extractor/youtube.py

   1 # coding: utf-8
   2
   3 import collections
   4 import errno
   5 import io
   6 import itertools
   7 import json
   8 import os.path
   9 import re
  10 import string
  11 import struct
  12 import traceback
  13 import zlib
  14
  15 from .common import InfoExtractor, SearchInfoExtractor
  16 from .subtitles import SubtitlesInfoExtractor
  17 from ..utils import (
  18     compat_chr,
  19     compat_parse_qs,
  20     compat_urllib_parse,
  21     compat_urllib_request,
  22     compat_urlparse,
  23     compat_str,
  24
  25     clean_html,
  26     get_cachedir,
  27     get_element_by_id,
  28     get_element_by_attribute,
  29     ExtractorError,
  30     RegexNotFoundError,
  31     unescapeHTML,
  32     unified_strdate,
  33     orderedSet,
  34     write_json_file,
  35 )
  36
  37 class YoutubeBaseInfoExtractor(InfoExtractor):
  38     """Provide base functions for Youtube extractors"""
  39     _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
  40     _LANG_URL = r'https://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
  41     _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
  42     _NETRC_MACHINE = 'youtube'
  43     # If True it will raise an error if no login info is provided
  44     _LOGIN_REQUIRED = False
  45
  46     def _set_language(self):
  47         return bool(self._download_webpage(
  48             self._LANG_URL, None,
  49             note=u'Setting language', errnote='unable to set language',
  50             fatal=False))
  51
  52     def _login(self):
  53         (username, password) = self._get_login_info()
  54         # No authentication to be performed
  55         if username is None:
  56             if self._LOGIN_REQUIRED:
  57                 raise ExtractorError(u'No login info available, needed for using %s.' % self.IE_NAME, expected=True)
  58             return False
  59
  60         login_page = self._download_webpage(
  61             self._LOGIN_URL, None,
  62             note=u'Downloading login page',
  63             errnote=u'unable to fetch login page', fatal=False)
  64         if login_page is False:
  65             return
  66
  67         galx = self._search_regex(r'(?s)<input.+?name="GALX".+?value="(.+?)"',
  68                                   login_page, u'Login GALX parameter')
  69
  70         # Log in
  71         login_form_strs = {
  72                 u'continue': u'https://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
  73                 u'Email': username,
  74                 u'GALX': galx,
  75                 u'Passwd': password,
  76                 u'PersistentCookie': u'yes',
  77                 u'_utf8': u'霱',
  78                 u'bgresponse': u'js_disabled',
  79                 u'checkConnection': u'',
  80                 u'checkedDomains': u'youtube',
  81                 u'dnConn': u'',
  82                 u'pstMsg': u'0',
  83                 u'rmShown': u'1',
  84                 u'secTok': u'',
  85                 u'signIn': u'Sign in',
  86                 u'timeStmp': u'',
  87                 u'service': u'youtube',
  88                 u'uilel': u'3',
  89                 u'hl': u'en_US',
  90         }
  91         # Convert to UTF-8 *before* urlencode because Python 2.x's urlencode
  92         # chokes on unicode
  93         login_form = dict((k.encode('utf-8'), v.encode('utf-8')) for k,v in login_form_strs.items())
  94         login_data = compat_urllib_parse.urlencode(login_form).encode('ascii')
  95
  96         req = compat_urllib_request.Request(self._LOGIN_URL, login_data)
  97         login_results = self._download_webpage(
  98             req, None,
  99             note=u'Logging in', errnote=u'unable to log in', fatal=False)
 100         if login_results is False:
 101             return False
 102         if re.search(r'(?i)<form[^>]* id="gaia_loginform"', login_results) is not None:
 103             self._downloader.report_warning(u'unable to log in: bad username or password')
 104             return False
 105         return True
 106
 107     def _confirm_age(self):
 108         age_form = {
 109             'next_url': '/',
 110             'action_confirm': 'Confirm',
 111         }
 112         req = compat_urllib_request.Request(self._AGE_URL, compat_urllib_parse.urlencode(age_form))
 113
 114         self._download_webpage(
 115             req, None,
 116             note=u'Confirming age', errnote=u'Unable to confirm age')
 117         return True
 118
 119     def _real_initialize(self):
 120         if self._downloader is None:
 121             return
 122         if not self._set_language():
 123             return
 124         if not self._login():
 125             return
 126         self._confirm_age()
 127
 128
 129 class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
 130     IE_DESC = u'YouTube.com'
 131     _VALID_URL = r"""(?x)^
 132                      (
 133                          (?:https?://|//)?                                    # http(s):// or protocol-independent URL (optional)
 134                          (?:(?:(?:(?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/|
 135                             (?:www\.)?deturl\.com/www\.youtube\.com/|
 136                             (?:www\.)?pwnyoutube\.com|
 137                             tube\.majestyc\.net/|
 138                             youtube\.googleapis\.com/)                        # the various hostnames, with wildcard subdomains
 139                          (?:.*?\#/)?                                          # handle anchor (#/) redirect urls
 140                          (?:                                                  # the various things that can precede the ID:
 141                              (?:(?:v|embed|e)/)                               # v/ or embed/ or e/
 142                              |(?:                                             # or the v= param in all its forms
 143                                  (?:(?:watch|movie)(?:_popup)?(?:\.php)?)?    # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
 144                                  (?:\?|\#!?)                                  # the params delimiter ? or # or #!
 145                                  (?:.*?&)?                                    # any other preceding param (like /?s=tuff&v=xxxx)
 146                                  v=
 147                              )
 148                          ))
 149                          |youtu\.be/                                          # just youtu.be/xxxx
 150                          )
 151                      )?                                                       # all until now is optional -> you can pass the naked ID
 152                      ([0-9A-Za-z_-]{11})                                      # here is it! the YouTube video ID
 153                      (?(1).+)?                                                # if we found the ID, everything can follow
 154                      $"""
 155     _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
 156     _formats = {
 157         '5': {'ext': 'flv', 'width': 400, 'height': 240},
 158         '6': {'ext': 'flv', 'width': 450, 'height': 270},
 159         '13': {'ext': '3gp'},
 160         '17': {'ext': '3gp', 'width': 176, 'height': 144},
 161         '18': {'ext': 'mp4', 'width': 640, 'height': 360},
 162         '22': {'ext': 'mp4', 'width': 1280, 'height': 720},
 163         '34': {'ext': 'flv', 'width': 640, 'height': 360},
 164         '35': {'ext': 'flv', 'width': 854, 'height': 480},
 165         '36': {'ext': '3gp', 'width': 320, 'height': 240},
 166         '37': {'ext': 'mp4', 'width': 1920, 'height': 1080},
 167         '38': {'ext': 'mp4', 'width': 4096, 'height': 3072},
 168         '43': {'ext': 'webm', 'width': 640, 'height': 360},
 169         '44': {'ext': 'webm', 'width': 854, 'height': 480},
 170         '45': {'ext': 'webm', 'width': 1280, 'height': 720},
 171         '46': {'ext': 'webm', 'width': 1920, 'height': 1080},
 172
 173
 174         # 3d videos
 175         '82': {'ext': 'mp4', 'height': 360, 'resolution': '360p', 'format_note': '3D', 'preference': -20},
 176         '83': {'ext': 'mp4', 'height': 480, 'resolution': '480p', 'format_note': '3D', 'preference': -20},
 177         '84': {'ext': 'mp4', 'height': 720, 'resolution': '720p', 'format_note': '3D', 'preference': -20},
 178         '85': {'ext': 'mp4', 'height': 1080, 'resolution': '1080p', 'format_note': '3D', 'preference': -20},
 179         '100': {'ext': 'webm', 'height': 360, 'resolution': '360p', 'format_note': '3D', 'preference': -20},
 180         '101': {'ext': 'webm', 'height': 480, 'resolution': '480p', 'format_note': '3D', 'preference': -20},
 181         '102': {'ext': 'webm', 'height': 720, 'resolution': '720p', 'format_note': '3D', 'preference': -20},
 182
 183         # Apple HTTP Live Streaming
 184         '92': {'ext': 'mp4', 'height': 240, 'resolution': '240p', 'format_note': 'HLS', 'preference': -10},
 185         '93': {'ext': 'mp4', 'height': 360, 'resolution': '360p', 'format_note': 'HLS', 'preference': -10},
 186         '94': {'ext': 'mp4', 'height': 480, 'resolution': '480p', 'format_note': 'HLS', 'preference': -10},
 187         '95': {'ext': 'mp4', 'height': 720, 'resolution': '720p', 'format_note': 'HLS', 'preference': -10},
 188         '96': {'ext': 'mp4', 'height': 1080, 'resolution': '1080p', 'format_note': 'HLS', 'preference': -10},
 189         '132': {'ext': 'mp4', 'height': 240, 'resolution': '240p', 'format_note': 'HLS', 'preference': -10},
 190         '151': {'ext': 'mp4', 'height': 72, 'resolution': '72p', 'format_note': 'HLS', 'preference': -10},
 191
 192         # DASH mp4 video
 193         '133': {'ext': 'mp4', 'height': 240, 'resolution': '240p', 'format_note': 'DASH video', 'preference': -40},
 194         '134': {'ext': 'mp4', 'height': 360, 'resolution': '360p', 'format_note': 'DASH video', 'preference': -40},
 195         '135': {'ext': 'mp4', 'height': 480, 'resolution': '480p', 'format_note': 'DASH video', 'preference': -40},
 196         '136': {'ext': 'mp4', 'height': 720, 'resolution': '720p', 'format_note': 'DASH video', 'preference': -40},
 197         '137': {'ext': 'mp4', 'height': 1080, 'resolution': '1080p', 'format_note': 'DASH video', 'preference': -40},
 198         '138': {'ext': 'mp4', 'height': 1081, 'resolution': '>1080p', 'format_note': 'DASH video', 'preference': -40},
 199         '160': {'ext': 'mp4', 'height': 192, 'resolution': '192p', 'format_note': 'DASH video', 'preference': -40},
 200         '264': {'ext': 'mp4', 'height': 1080, 'resolution': '1080p', 'format_note': 'DASH video', 'preference': -40},
 201
 202         # Dash mp4 audio
 203         '139': {'ext': 'm4a', 'format_note': 'DASH audio', 'vcodec': 'none', 'abr': 48, 'preference': -50},
 204         '140': {'ext': 'm4a', 'format_note': 'DASH audio', 'vcodec': 'none', 'abr': 128, 'preference': -50},
 205         '141': {'ext': 'm4a', 'format_note': 'DASH audio', 'vcodec': 'none', 'abr': 256, 'preference': -50},
 206
 207         # Dash webm
 208         '242': {'ext': 'webm', 'height': 240, 'resolution': '240p', 'format_note': 'DASH webm', 'preference': -40},
 209         '243': {'ext': 'webm', 'height': 360, 'resolution': '360p', 'format_note': 'DASH webm', 'preference': -40},
 210         '244': {'ext': 'webm', 'height': 480, 'resolution': '480p', 'format_note': 'DASH webm', 'preference': -40},
 211         '245': {'ext': 'webm', 'height': 480, 'resolution': '480p', 'format_note': 'DASH webm', 'preference': -40},
 212         '246': {'ext': 'webm', 'height': 480, 'resolution': '480p', 'format_note': 'DASH webm', 'preference': -40},
 213         '247': {'ext': 'webm', 'height': 720, 'resolution': '720p', 'format_note': 'DASH webm', 'preference': -40},
 214         '248': {'ext': 'webm', 'height': 1080, 'resolution': '1080p', 'format_note': 'DASH webm', 'preference': -40},
 215
 216         # Dash webm audio
 217         '171': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH webm audio', 'abr': 48, 'preference': -50},
 218         '172': {'ext': 'webm', 'vcodec': 'none', 'format_note': 'DASH webm audio', 'abr': 256, 'preference': -50},
 219
 220         # RTMP (unnamed)
 221         '_rtmp': {'protocol': 'rtmp'},
 222     }
 223
 224     IE_NAME = u'youtube'
 225     _TESTS = [
 226         {
 227             u"url":  u"http://www.youtube.com/watch?v=BaW_jenozKc",
 228             u"file":  u"BaW_jenozKc.mp4",
 229             u"info_dict": {
 230                 u"title": u"youtube-dl test video \"'/\\ä↭𝕐",
 231                 u"uploader": u"Philipp Hagemeister",
 232                 u"uploader_id": u"phihag",
 233                 u"upload_date": u"20121002",
 234                 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 ."
 235             }
 236         },
 237         {
 238             u"url":  u"http://www.youtube.com/watch?v=UxxajLWwzqY",
 239             u"file":  u"UxxajLWwzqY.mp4",
 240             u"note": u"Test generic use_cipher_signature video (#897)",
 241             u"info_dict": {
 242                 u"upload_date": u"20120506",
 243                 u"title": u"Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO]",
 244                 u"description": u"md5:5b292926389560516e384ac437c0ec07",
 245                 u"uploader": u"Icona Pop",
 246                 u"uploader_id": u"IconaPop"
 247             }
 248         },
 249         {
 250             u"url":  u"https://www.youtube.com/watch?v=07FYdnEawAQ",
 251             u"file":  u"07FYdnEawAQ.mp4",
 252             u"note": u"Test VEVO video with age protection (#956)",
 253             u"info_dict": {
 254                 u"upload_date": u"20130703",
 255                 u"title": u"Justin Timberlake - Tunnel Vision (Explicit)",
 256                 u"description": u"md5:64249768eec3bc4276236606ea996373",
 257                 u"uploader": u"justintimberlakeVEVO",
 258                 u"uploader_id": u"justintimberlakeVEVO"
 259             }
 260         },
 261         {
 262             u"url":  u"//www.YouTube.com/watch?v=yZIXLfi8CZQ",
 263             u"file":  u"yZIXLfi8CZQ.mp4",
 264             u"note": u"Embed-only video (#1746)",
 265             u"info_dict": {
 266                 u"upload_date": u"20120608",
 267                 u"title": u"Principal Sexually Assaults A Teacher - Episode 117 - 8th June 2012",
 268                 u"description": u"md5:09b78bd971f1e3e289601dfba15ca4f7",
 269                 u"uploader": u"SET India",
 270                 u"uploader_id": u"setindia"
 271             }
 272         },
 273     ]
 274
 275
 276     @classmethod
 277     def suitable(cls, url):
 278         """Receives a URL and returns True if suitable for this IE."""
 279         if YoutubePlaylistIE.suitable(url): return False
 280         return re.match(cls._VALID_URL, url) is not None
 281
 282     def __init__(self, *args, **kwargs):
 283         super(YoutubeIE, self).__init__(*args, **kwargs)
 284         self._player_cache = {}
 285
 286     def report_video_info_webpage_download(self, video_id):
 287         """Report attempt to download video info webpage."""
 288         self.to_screen(u'%s: Downloading video info webpage' % video_id)
 289
 290     def report_information_extraction(self, video_id):
 291         """Report attempt to extract video information."""
 292         self.to_screen(u'%s: Extracting video information' % video_id)
 293
 294     def report_unavailable_format(self, video_id, format):
 295         """Report extracted video URL."""
 296         self.to_screen(u'%s: Format %s not available' % (video_id, format))
 297
 298     def report_rtmp_download(self):
 299         """Indicate the download will use the RTMP protocol."""
 300         self.to_screen(u'RTMP download detected')
 301
 302     def _extract_signature_function(self, video_id, player_url, slen):
 303         id_m = re.match(r'.*-(?P<id>[a-zA-Z0-9_-]+)\.(?P<ext>[a-z]+)$',
 304                         player_url)
 305         player_type = id_m.group('ext')
 306         player_id = id_m.group('id')
 307
 308         # Read from filesystem cache
 309         func_id = '%s_%s_%d' % (player_type, player_id, slen)
 310         assert os.path.basename(func_id) == func_id
 311         cache_dir = get_cachedir(self._downloader.params)
 312
 313         cache_enabled = cache_dir is not None
 314         if cache_enabled:
 315             cache_fn = os.path.join(os.path.expanduser(cache_dir),
 316                                     u'youtube-sigfuncs',
 317                                     func_id + '.json')
 318             try:
 319                 with io.open(cache_fn, 'r', encoding='utf-8') as cachef:
 320                     cache_spec = json.load(cachef)
 321                 return lambda s: u''.join(s[i] for i in cache_spec)
 322             except IOError:
 323                 pass  # No cache available
 324
 325         if player_type == 'js':
 326             code = self._download_webpage(
 327                 player_url, video_id,
 328                 note=u'Downloading %s player %s' % (player_type, player_id),
 329                 errnote=u'Download of %s failed' % player_url)
 330             res = self._parse_sig_js(code)
 331         elif player_type == 'swf':
 332             urlh = self._request_webpage(
 333                 player_url, video_id,
 334                 note=u'Downloading %s player %s' % (player_type, player_id),
 335                 errnote=u'Download of %s failed' % player_url)
 336             code = urlh.read()
 337             res = self._parse_sig_swf(code)
 338         else:
 339             assert False, 'Invalid player type %r' % player_type
 340
 341         if cache_enabled:
 342             try:
 343                 test_string = u''.join(map(compat_chr, range(slen)))
 344                 cache_res = res(test_string)
 345                 cache_spec = [ord(c) for c in cache_res]
 346                 try:
 347                     os.makedirs(os.path.dirname(cache_fn))
 348                 except OSError as ose:
 349                     if ose.errno != errno.EEXIST:
 350                         raise
 351                 write_json_file(cache_spec, cache_fn)
 352             except Exception:
 353                 tb = traceback.format_exc()
 354                 self._downloader.report_warning(
 355                     u'Writing cache to %r failed: %s' % (cache_fn, tb))
 356
 357         return res
 358
 359     def _print_sig_code(self, func, slen):
 360         def gen_sig_code(idxs):
 361             def _genslice(start, end, step):
 362                 starts = u'' if start == 0 else str(start)
 363                 ends = (u':%d' % (end+step)) if end + step >= 0 else u':'
 364                 steps = u'' if step == 1 else (u':%d' % step)
 365                 return u's[%s%s%s]' % (starts, ends, steps)
 366
 367             step = None
 368             start = '(Never used)'  # Quelch pyflakes warnings - start will be
 369                                     # set as soon as step is set
 370             for i, prev in zip(idxs[1:], idxs[:-1]):
 371                 if step is not None:
 372                     if i - prev == step:
 373                         continue
 374                     yield _genslice(start, prev, step)
 375                     step = None
 376                     continue
 377                 if i - prev in [-1, 1]:
 378                     step = i - prev
 379                     start = prev
 380                     continue
 381                 else:
 382                     yield u's[%d]' % prev
 383             if step is None:
 384                 yield u's[%d]' % i
 385             else:
 386                 yield _genslice(start, i, step)
 387
 388         test_string = u''.join(map(compat_chr, range(slen)))
 389         cache_res = func(test_string)
 390         cache_spec = [ord(c) for c in cache_res]
 391         expr_code = u' + '.join(gen_sig_code(cache_spec))
 392         code = u'if len(s) == %d:\n    return %s\n' % (slen, expr_code)
 393         self.to_screen(u'Extracted signature function:\n' + code)
 394
 395     def _parse_sig_js(self, jscode):
 396         funcname = self._search_regex(
 397             r'signature=([a-zA-Z]+)', jscode,
 398             u'Initial JS player signature function name')
 399
 400         functions = {}
 401
 402         def argidx(varname):
 403             return string.lowercase.index(varname)
 404
 405         def interpret_statement(stmt, local_vars, allow_recursion=20):
 406             if allow_recursion < 0:
 407                 raise ExtractorError(u'Recursion limit reached')
 408
 409             if stmt.startswith(u'var '):
 410                 stmt = stmt[len(u'var '):]
 411             ass_m = re.match(r'^(?P<out>[a-z]+)(?:\[(?P<index>[^\]]+)\])?' +
 412                              r'=(?P<expr>.*)$', stmt)
 413             if ass_m:
 414                 if ass_m.groupdict().get('index'):
 415                     def assign(val):
 416                         lvar = local_vars[ass_m.group('out')]
 417                         idx = interpret_expression(ass_m.group('index'),
 418                                                    local_vars, allow_recursion)
 419                         assert isinstance(idx, int)
 420                         lvar[idx] = val
 421                         return val
 422                     expr = ass_m.group('expr')
 423                 else:
 424                     def assign(val):
 425                         local_vars[ass_m.group('out')] = val
 426                         return val
 427                     expr = ass_m.group('expr')
 428             elif stmt.startswith(u'return '):
 429                 assign = lambda v: v
 430                 expr = stmt[len(u'return '):]
 431             else:
 432                 raise ExtractorError(
 433                     u'Cannot determine left side of statement in %r' % stmt)
 434
 435             v = interpret_expression(expr, local_vars, allow_recursion)
 436             return assign(v)
 437
 438         def interpret_expression(expr, local_vars, allow_recursion):
 439             if expr.isdigit():
 440                 return int(expr)
 441
 442             if expr.isalpha():
 443                 return local_vars[expr]
 444
 445             m = re.match(r'^(?P<in>[a-z]+)\.(?P<member>.*)$', expr)
 446             if m:
 447                 member = m.group('member')
 448                 val = local_vars[m.group('in')]
 449                 if member == 'split("")':
 450                     return list(val)
 451                 if member == 'join("")':
 452                     return u''.join(val)
 453                 if member == 'length':
 454                     return len(val)
 455                 if member == 'reverse()':
 456                     return val[::-1]
 457                 slice_m = re.match(r'slice\((?P<idx>.*)\)', member)
 458                 if slice_m:
 459                     idx = interpret_expression(
 460                         slice_m.group('idx'), local_vars, allow_recursion-1)
 461                     return val[idx:]
 462
 463             m = re.match(
 464                 r'^(?P<in>[a-z]+)\[(?P<idx>.+)\]$', expr)
 465             if m:
 466                 val = local_vars[m.group('in')]
 467                 idx = interpret_expression(m.group('idx'), local_vars,
 468                                            allow_recursion-1)
 469                 return val[idx]
 470
 471             m = re.match(r'^(?P<a>.+?)(?P<op>[%])(?P<b>.+?)$', expr)
 472             if m:
 473                 a = interpret_expression(m.group('a'),
 474                                          local_vars, allow_recursion)
 475                 b = interpret_expression(m.group('b'),
 476                                          local_vars, allow_recursion)
 477                 return a % b
 478
 479             m = re.match(
 480                 r'^(?P<func>[a-zA-Z]+)\((?P<args>[a-z0-9,]+)\)$', expr)
 481             if m:
 482                 fname = m.group('func')
 483                 if fname not in functions:
 484                     functions[fname] = extract_function(fname)
 485                 argvals = [int(v) if v.isdigit() else local_vars[v]
 486                            for v in m.group('args').split(',')]
 487                 return functions[fname](argvals)
 488             raise ExtractorError(u'Unsupported JS expression %r' % expr)
 489
 490         def extract_function(funcname):
 491             func_m = re.search(
 492                 r'function ' + re.escape(funcname) +
 493                 r'\((?P<args>[a-z,]+)\){(?P<code>[^}]+)}',
 494                 jscode)
 495             argnames = func_m.group('args').split(',')
 496
 497             def resf(args):
 498                 local_vars = dict(zip(argnames, args))
 499                 for stmt in func_m.group('code').split(';'):
 500                     res = interpret_statement(stmt, local_vars)
 501                 return res
 502             return resf
 503
 504         initial_function = extract_function(funcname)
 505         return lambda s: initial_function([s])
 506
 507     def _parse_sig_swf(self, file_contents):
 508         if file_contents[1:3] != b'WS':
 509             raise ExtractorError(
 510                 u'Not an SWF file; header is %r' % file_contents[:3])
 511         if file_contents[:1] == b'C':
 512             content = zlib.decompress(file_contents[8:])
 513         else:
 514             raise NotImplementedError(u'Unsupported compression format %r' %
 515                                       file_contents[:1])
 516
 517         def extract_tags(content):
 518             pos = 0
 519             while pos < len(content):
 520                 header16 = struct.unpack('<H', content[pos:pos+2])[0]
 521                 pos += 2
 522                 tag_code = header16 >> 6
 523                 tag_len = header16 & 0x3f
 524                 if tag_len == 0x3f:
 525                     tag_len = struct.unpack('<I', content[pos:pos+4])[0]
 526                     pos += 4
 527                 assert pos+tag_len <= len(content)
 528                 yield (tag_code, content[pos:pos+tag_len])
 529                 pos += tag_len
 530
 531         code_tag = next(tag
 532                         for tag_code, tag in extract_tags(content)
 533                         if tag_code == 82)
 534         p = code_tag.index(b'\0', 4) + 1
 535         code_reader = io.BytesIO(code_tag[p:])
 536
 537         # Parse ABC (AVM2 ByteCode)
 538         def read_int(reader=None):
 539             if reader is None:
 540                 reader = code_reader
 541             res = 0
 542             shift = 0
 543             for _ in range(5):
 544                 buf = reader.read(1)
 545                 assert len(buf) == 1
 546                 b = struct.unpack('<B', buf)[0]
 547                 res = res | ((b & 0x7f) << shift)
 548                 if b & 0x80 == 0:
 549                     break
 550                 shift += 7
 551             return res
 552
 553         def u30(reader=None):
 554             res = read_int(reader)
 555             assert res & 0xf0000000 == 0
 556             return res
 557         u32 = read_int
 558
 559         def s32(reader=None):
 560             v = read_int(reader)
 561             if v & 0x80000000 != 0:
 562                 v = - ((v ^ 0xffffffff) + 1)
 563             return v
 564
 565         def read_string(reader=None):
 566             if reader is None:
 567                 reader = code_reader
 568             slen = u30(reader)
 569             resb = reader.read(slen)
 570             assert len(resb) == slen
 571             return resb.decode('utf-8')
 572
 573         def read_bytes(count, reader=None):
 574             if reader is None:
 575                 reader = code_reader
 576             resb = reader.read(count)
 577             assert len(resb) == count
 578             return resb
 579
 580         def read_byte(reader=None):
 581             resb = read_bytes(1, reader=reader)
 582             res = struct.unpack('<B', resb)[0]
 583             return res
 584
 585         # minor_version + major_version
 586         read_bytes(2 + 2)
 587
 588         # Constant pool
 589         int_count = u30()
 590         for _c in range(1, int_count):
 591             s32()
 592         uint_count = u30()
 593         for _c in range(1, uint_count):
 594             u32()
 595         double_count = u30()
 596         read_bytes((double_count-1) * 8)
 597         string_count = u30()
 598         constant_strings = [u'']
 599         for _c in range(1, string_count):
 600             s = read_string()
 601             constant_strings.append(s)
 602         namespace_count = u30()
 603         for _c in range(1, namespace_count):
 604             read_bytes(1)  # kind
 605             u30()  # name
 606         ns_set_count = u30()
 607         for _c in range(1, ns_set_count):
 608             count = u30()
 609             for _c2 in range(count):
 610                 u30()
 611         multiname_count = u30()
 612         MULTINAME_SIZES = {
 613             0x07: 2,  # QName
 614             0x0d: 2,  # QNameA
 615             0x0f: 1,  # RTQName
 616             0x10: 1,  # RTQNameA
 617             0x11: 0,  # RTQNameL
 618             0x12: 0,  # RTQNameLA
 619             0x09: 2,  # Multiname
 620             0x0e: 2,  # MultinameA
 621             0x1b: 1,  # MultinameL
 622             0x1c: 1,  # MultinameLA
 623         }
 624         multinames = [u'']
 625         for _c in range(1, multiname_count):
 626             kind = u30()
 627             assert kind in MULTINAME_SIZES, u'Invalid multiname kind %r' % kind
 628             if kind == 0x07:
 629                 u30()  # namespace_idx
 630                 name_idx = u30()
 631                 multinames.append(constant_strings[name_idx])
 632             else:
 633                 multinames.append('[MULTINAME kind: %d]' % kind)
 634                 for _c2 in range(MULTINAME_SIZES[kind]):
 635                     u30()
 636
 637         # Methods
 638         method_count = u30()
 639         MethodInfo = collections.namedtuple(
 640             'MethodInfo',
 641             ['NEED_ARGUMENTS', 'NEED_REST'])
 642         method_infos = []
 643         for method_id in range(method_count):
 644             param_count = u30()
 645             u30()  # return type
 646             for _ in range(param_count):
 647                 u30()  # param type
 648             u30()  # name index (always 0 for youtube)
 649             flags = read_byte()
 650             if flags & 0x08 != 0:
 651                 # Options present
 652                 option_count = u30()
 653                 for c in range(option_count):
 654                     u30()  # val
 655                     read_bytes(1)  # kind
 656             if flags & 0x80 != 0:
 657                 # Param names present
 658                 for _ in range(param_count):
 659                     u30()  # param name
 660             mi = MethodInfo(flags & 0x01 != 0, flags & 0x04 != 0)
 661             method_infos.append(mi)
 662
 663         # Metadata
 664         metadata_count = u30()
 665         for _c in range(metadata_count):
 666             u30()  # name
 667             item_count = u30()
 668             for _c2 in range(item_count):
 669                 u30()  # key
 670                 u30()  # value
 671
 672         def parse_traits_info():
 673             trait_name_idx = u30()
 674             kind_full = read_byte()
 675             kind = kind_full & 0x0f
 676             attrs = kind_full >> 4
 677             methods = {}
 678             if kind in [0x00, 0x06]:  # Slot or Const
 679                 u30()  # Slot id
 680                 u30()  # type_name_idx
 681                 vindex = u30()
 682                 if vindex != 0:
 683                     read_byte()  # vkind
 684             elif kind in [0x01, 0x02, 0x03]:  # Method / Getter / Setter
 685                 u30()  # disp_id
 686                 method_idx = u30()
 687                 methods[multinames[trait_name_idx]] = method_idx
 688             elif kind == 0x04:  # Class
 689                 u30()  # slot_id
 690                 u30()  # classi
 691             elif kind == 0x05:  # Function
 692                 u30()  # slot_id
 693                 function_idx = u30()
 694                 methods[function_idx] = multinames[trait_name_idx]
 695             else:
 696                 raise ExtractorError(u'Unsupported trait kind %d' % kind)
 697
 698             if attrs & 0x4 != 0:  # Metadata present
 699                 metadata_count = u30()
 700                 for _c3 in range(metadata_count):
 701                     u30()  # metadata index
 702
 703             return methods
 704
 705         # Classes
 706         TARGET_CLASSNAME = u'SignatureDecipher'
 707         searched_idx = multinames.index(TARGET_CLASSNAME)
 708         searched_class_id = None
 709         class_count = u30()
 710         for class_id in range(class_count):
 711             name_idx = u30()
 712             if name_idx == searched_idx:
 713                 # We found the class we're looking for!
 714                 searched_class_id = class_id
 715             u30()  # super_name idx
 716             flags = read_byte()
 717             if flags & 0x08 != 0:  # Protected namespace is present
 718                 u30()  # protected_ns_idx
 719             intrf_count = u30()
 720             for _c2 in range(intrf_count):
 721                 u30()
 722             u30()  # iinit
 723             trait_count = u30()
 724             for _c2 in range(trait_count):
 725                 parse_traits_info()
 726
 727         if searched_class_id is None:
 728             raise ExtractorError(u'Target class %r not found' %
 729                                  TARGET_CLASSNAME)
 730
 731         method_names = {}
 732         method_idxs = {}
 733         for class_id in range(class_count):
 734             u30()  # cinit
 735             trait_count = u30()
 736             for _c2 in range(trait_count):
 737                 trait_methods = parse_traits_info()
 738                 if class_id == searched_class_id:
 739                     method_names.update(trait_methods.items())
 740                     method_idxs.update(dict(
 741                         (idx, name)
 742                         for name, idx in trait_methods.items()))
 743
 744         # Scripts
 745         script_count = u30()
 746         for _c in range(script_count):
 747             u30()  # init
 748             trait_count = u30()
 749             for _c2 in range(trait_count):
 750                 parse_traits_info()
 751
 752         # Method bodies
 753         method_body_count = u30()
 754         Method = collections.namedtuple('Method', ['code', 'local_count'])
 755         methods = {}
 756         for _c in range(method_body_count):
 757             method_idx = u30()
 758             u30()  # max_stack
 759             local_count = u30()
 760             u30()  # init_scope_depth
 761             u30()  # max_scope_depth
 762             code_length = u30()
 763             code = read_bytes(code_length)
 764             if method_idx in method_idxs:
 765                 m = Method(code, local_count)
 766                 methods[method_idxs[method_idx]] = m
 767             exception_count = u30()
 768             for _c2 in range(exception_count):
 769                 u30()  # from
 770                 u30()  # to
 771                 u30()  # target
 772                 u30()  # exc_type
 773                 u30()  # var_name
 774             trait_count = u30()
 775             for _c2 in range(trait_count):
 776                 parse_traits_info()
 777
 778         assert p + code_reader.tell() == len(code_tag)
 779         assert len(methods) == len(method_idxs)
 780
 781         method_pyfunctions = {}
 782
 783         def extract_function(func_name):
 784             if func_name in method_pyfunctions:
 785                 return method_pyfunctions[func_name]
 786             if func_name not in methods:
 787                 raise ExtractorError(u'Cannot find function %r' % func_name)
 788             m = methods[func_name]
 789
 790             def resfunc(args):
 791                 registers = ['(this)'] + list(args) + [None] * m.local_count
 792                 stack = []
 793                 coder = io.BytesIO(m.code)
 794                 while True:
 795                     opcode = struct.unpack('!B', coder.read(1))[0]
 796                     if opcode == 36:  # pushbyte
 797                         v = struct.unpack('!B', coder.read(1))[0]
 798                         stack.append(v)
 799                     elif opcode == 44:  # pushstring
 800                         idx = u30(coder)
 801                         stack.append(constant_strings[idx])
 802                     elif opcode == 48:  # pushscope
 803                         # We don't implement the scope register, so we'll just
 804                         # ignore the popped value
 805                         stack.pop()
 806                     elif opcode == 70:  # callproperty
 807                         index = u30(coder)
 808                         mname = multinames[index]
 809                         arg_count = u30(coder)
 810                         args = list(reversed(
 811                             [stack.pop() for _ in range(arg_count)]))
 812                         obj = stack.pop()
 813                         if mname == u'split':
 814                             assert len(args) == 1
 815                             assert isinstance(args[0], compat_str)
 816                             assert isinstance(obj, compat_str)
 817                             if args[0] == u'':
 818                                 res = list(obj)
 819                             else:
 820                                 res = obj.split(args[0])
 821                             stack.append(res)
 822                         elif mname == u'slice':
 823                             assert len(args) == 1
 824                             assert isinstance(args[0], int)
 825                             assert isinstance(obj, list)
 826                             res = obj[args[0]:]
 827                             stack.append(res)
 828                         elif mname == u'join':
 829                             assert len(args) == 1
 830                             assert isinstance(args[0], compat_str)
 831                             assert isinstance(obj, list)
 832                             res = args[0].join(obj)
 833                             stack.append(res)
 834                         elif mname in method_pyfunctions:
 835                             stack.append(method_pyfunctions[mname](args))
 836                         else:
 837                             raise NotImplementedError(
 838                                 u'Unsupported property %r on %r'
 839                                 % (mname, obj))
 840                     elif opcode == 72:  # returnvalue
 841                         res = stack.pop()
 842                         return res
 843                     elif opcode == 79:  # callpropvoid
 844                         index = u30(coder)
 845                         mname = multinames[index]
 846                         arg_count = u30(coder)
 847                         args = list(reversed(
 848                             [stack.pop() for _ in range(arg_count)]))
 849                         obj = stack.pop()
 850                         if mname == u'reverse':
 851                             assert isinstance(obj, list)
 852                             obj.reverse()
 853                         else:
 854                             raise NotImplementedError(
 855                                 u'Unsupported (void) property %r on %r'
 856                                 % (mname, obj))
 857                     elif opcode == 93:  # findpropstrict
 858                         index = u30(coder)
 859                         mname = multinames[index]
 860                         res = extract_function(mname)
 861                         stack.append(res)
 862                     elif opcode == 97:  # setproperty
 863                         index = u30(coder)
 864                         value = stack.pop()
 865                         idx = stack.pop()
 866                         obj = stack.pop()
 867                         assert isinstance(obj, list)
 868                         assert isinstance(idx, int)
 869                         obj[idx] = value
 870                     elif opcode == 98:  # getlocal
 871                         index = u30(coder)
 872                         stack.append(registers[index])
 873                     elif opcode == 99:  # setlocal
 874                         index = u30(coder)
 875                         value = stack.pop()
 876                         registers[index] = value
 877                     elif opcode == 102:  # getproperty
 878                         index = u30(coder)
 879                         pname = multinames[index]
 880                         if pname == u'length':
 881                             obj = stack.pop()
 882                             assert isinstance(obj, list)
 883                             stack.append(len(obj))
 884                         else:  # Assume attribute access
 885                             idx = stack.pop()
 886                             assert isinstance(idx, int)
 887                             obj = stack.pop()
 888                             assert isinstance(obj, list)
 889                             stack.append(obj[idx])
 890                     elif opcode == 128:  # coerce
 891                         u30(coder)
 892                     elif opcode == 133:  # coerce_s
 893                         assert isinstance(stack[-1], (type(None), compat_str))
 894                     elif opcode == 164:  # modulo
 895                         value2 = stack.pop()
 896                         value1 = stack.pop()
 897                         res = value1 % value2
 898                         stack.append(res)
 899                     elif opcode == 208:  # getlocal_0
 900                         stack.append(registers[0])
 901                     elif opcode == 209:  # getlocal_1
 902                         stack.append(registers[1])
 903                     elif opcode == 210:  # getlocal_2
 904                         stack.append(registers[2])
 905                     elif opcode == 211:  # getlocal_3
 906                         stack.append(registers[3])
 907                     elif opcode == 214:  # setlocal_2
 908                         registers[2] = stack.pop()
 909                     elif opcode == 215:  # setlocal_3
 910                         registers[3] = stack.pop()
 911                     else:
 912                         raise NotImplementedError(
 913                             u'Unsupported opcode %d' % opcode)
 914
 915             method_pyfunctions[func_name] = resfunc
 916             return resfunc
 917
 918         initial_function = extract_function(u'decipher')
 919         return lambda s: initial_function([s])
 920
 921     def _decrypt_signature(self, s, video_id, player_url, age_gate=False):
 922         """Turn the encrypted s field into a working signature"""
 923
 924         if player_url is not None:
 925             if player_url.startswith(u'//'):
 926                 player_url = u'https:' + player_url
 927             try:
 928                 player_id = (player_url, len(s))
 929                 if player_id not in self._player_cache:
 930                     func = self._extract_signature_function(
 931                         video_id, player_url, len(s)
 932                     )
 933                     self._player_cache[player_id] = func
 934                 func = self._player_cache[player_id]
 935                 if self._downloader.params.get('youtube_print_sig_code'):
 936                     self._print_sig_code(func, len(s))
 937                 return func(s)
 938             except Exception:
 939                 tb = traceback.format_exc()
 940                 self._downloader.report_warning(
 941                     u'Automatic signature extraction failed: ' + tb)
 942
 943             self._downloader.report_warning(
 944                 u'Warning: Falling back to static signature algorithm')
 945
 946         return self._static_decrypt_signature(
 947             s, video_id, player_url, age_gate)
 948
 949     def _static_decrypt_signature(self, s, video_id, player_url, age_gate):
 950         if age_gate:
 951             # The videos with age protection use another player, so the
 952             # algorithms can be different.
 953             if len(s) == 86:
 954                 return s[2:63] + s[82] + s[64:82] + s[63]
 955
 956         if len(s) == 93:
 957             return s[86:29:-1] + s[88] + s[28:5:-1]
 958         elif len(s) == 92:
 959             return s[25] + s[3:25] + s[0] + s[26:42] + s[79] + s[43:79] + s[91] + s[80:83]
 960         elif len(s) == 91:
 961             return s[84:27:-1] + s[86] + s[26:5:-1]
 962         elif len(s) == 90:
 963             return s[25] + s[3:25] + s[2] + s[26:40] + s[77] + s[41:77] + s[89] + s[78:81]
 964         elif len(s) == 89:
 965             return s[84:78:-1] + s[87] + s[77:60:-1] + s[0] + s[59:3:-1]
 966         elif len(s) == 88:
 967             return s[7:28] + s[87] + s[29:45] + s[55] + s[46:55] + s[2] + s[56:87] + s[28]
 968         elif len(s) == 87:
 969             return s[6:27] + s[4] + s[28:39] + s[27] + s[40:59] + s[2] + s[60:]
 970         elif len(s) == 86:
 971             return s[80:72:-1] + s[16] + s[71:39:-1] + s[72] + s[38:16:-1] + s[82] + s[15::-1]
 972         elif len(s) == 85:
 973             return s[3:11] + s[0] + s[12:55] + s[84] + s[56:84]
 974         elif len(s) == 84:
 975             return s[78:70:-1] + s[14] + s[69:37:-1] + s[70] + s[36:14:-1] + s[80] + s[:14][::-1]
 976         elif len(s) == 83:
 977             return s[80:63:-1] + s[0] + s[62:0:-1] + s[63]
 978         elif len(s) == 82:
 979             return s[80:37:-1] + s[7] + s[36:7:-1] + s[0] + s[6:0:-1] + s[37]
 980         elif len(s) == 81:
 981             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]
 982         elif len(s) == 80:
 983             return s[1:19] + s[0] + s[20:68] + s[19] + s[69:80]
 984         elif len(s) == 79:
 985             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]
 986
 987         else:
 988             raise ExtractorError(u'Unable to decrypt signature, key length %d not supported; retrying might work' % (len(s)))
 989
 990     def _get_available_subtitles(self, video_id, webpage):
 991         try:
 992             sub_list = self._download_webpage(
 993                 'http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
 994                 video_id, note=False)
 995         except ExtractorError as err:
 996             self._downloader.report_warning(u'unable to download video subtitles: %s' % compat_str(err))
 997             return {}
 998         lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
 999
1000         sub_lang_list = {}
1001         for l in lang_list:
1002             lang = l[1]
1003             params = compat_urllib_parse.urlencode({
1004                 'lang': lang,
1005                 'v': video_id,
1006                 'fmt': self._downloader.params.get('subtitlesformat', 'srt'),
1007                 'name': unescapeHTML(l[0]).encode('utf-8'),
1008             })
1009             url = u'http://www.youtube.com/api/timedtext?' + params
1010             sub_lang_list[lang] = url
1011         if not sub_lang_list:
1012             self._downloader.report_warning(u'video doesn\'t have subtitles')
1013             return {}
1014         return sub_lang_list
1015
1016     def _get_available_automatic_caption(self, video_id, webpage):
1017         """We need the webpage for getting the captions url, pass it as an
1018            argument to speed up the process."""
1019         sub_format = self._downloader.params.get('subtitlesformat', 'srt')
1020         self.to_screen(u'%s: Looking for automatic captions' % video_id)
1021         mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
1022         err_msg = u'Couldn\'t find automatic captions for %s' % video_id
1023         if mobj is None:
1024             self._downloader.report_warning(err_msg)
1025             return {}
1026         player_config = json.loads(mobj.group(1))
1027         try:
1028             args = player_config[u'args']
1029             caption_url = args[u'ttsurl']
1030             timestamp = args[u'timestamp']
1031             # We get the available subtitles
1032             list_params = compat_urllib_parse.urlencode({
1033                 'type': 'list',
1034                 'tlangs': 1,
1035                 'asrs': 1,
1036             })
1037             list_url = caption_url + '&' + list_params
1038             caption_list = self._download_xml(list_url, video_id)
1039             original_lang_node = caption_list.find('track')
1040             if original_lang_node is None or original_lang_node.attrib.get('kind') != 'asr' :
1041                 self._downloader.report_warning(u'Video doesn\'t have automatic captions')
1042                 return {}
1043             original_lang = original_lang_node.attrib['lang_code']
1044
1045             sub_lang_list = {}
1046             for lang_node in caption_list.findall('target'):
1047                 sub_lang = lang_node.attrib['lang_code']
1048                 params = compat_urllib_parse.urlencode({
1049                     'lang': original_lang,
1050                     'tlang': sub_lang,
1051                     'fmt': sub_format,
1052                     'ts': timestamp,
1053                     'kind': 'asr',
1054                 })
1055                 sub_lang_list[sub_lang] = caption_url + '&' + params
1056             return sub_lang_list
1057         # An extractor error can be raise by the download process if there are
1058         # no automatic captions but there are subtitles
1059         except (KeyError, ExtractorError):
1060             self._downloader.report_warning(err_msg)
1061             return {}
1062
1063     def _extract_id(self, url):
1064         mobj = re.match(self._VALID_URL, url, re.VERBOSE)
1065         if mobj is None:
1066             raise ExtractorError(u'Invalid URL: %s' % url)
1067         video_id = mobj.group(2)
1068         return video_id
1069
1070     def _get_video_url_list(self, url_map):
1071         """
1072         Transform a dictionary in the format {itag:url} to a list of (itag, url)
1073         with the requested formats.
1074         """
1075         existing_formats = [x for x in self._formats if x in url_map]
1076         if len(existing_formats) == 0:
1077             raise ExtractorError(u'no known formats available for video')
1078         video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
1079         video_url_list.reverse() # order worst to best
1080         return video_url_list
1081
1082     def _extract_from_m3u8(self, manifest_url, video_id):
1083         url_map = {}
1084         def _get_urls(_manifest):
1085             lines = _manifest.split('\n')
1086             urls = filter(lambda l: l and not l.startswith('#'),
1087                             lines)
1088             return urls
1089         manifest = self._download_webpage(manifest_url, video_id, u'Downloading formats manifest')
1090         formats_urls = _get_urls(manifest)
1091         for format_url in formats_urls:
1092             itag = self._search_regex(r'itag/(\d+?)/', format_url, 'itag')
1093             url_map[itag] = format_url
1094         return url_map
1095
1096     def _extract_annotations(self, video_id):
1097         url = 'https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=%s' % video_id
1098         return self._download_webpage(url, video_id, note=u'Searching for annotations.', errnote=u'Unable to download video annotations.')
1099
1100     def _real_extract(self, url):
1101         # Extract original video URL from URL with redirection, like age verification, using next_url parameter
1102         mobj = re.search(self._NEXT_URL_RE, url)
1103         if mobj:
1104             url = 'https://www.youtube.com/' + compat_urllib_parse.unquote(mobj.group(1)).lstrip('/')
1105         video_id = self._extract_id(url)
1106
1107         # Get video webpage
1108         url = 'https://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1' % video_id
1109         video_webpage = self._download_webpage(url, video_id)
1110
1111         # Attempt to extract SWF player URL
1112         mobj = re.search(r'swfConfig.*?"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
1113         if mobj is not None:
1114             player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
1115         else:
1116             player_url = None
1117
1118         # Get video info
1119         self.report_video_info_webpage_download(video_id)
1120         if re.search(r'player-age-gate-content">', video_webpage) is not None:
1121             self.report_age_confirmation()
1122             age_gate = True
1123             # We simulate the access to the video from www.youtube.com/v/{video_id}
1124             # this can be viewed without login into Youtube
1125             data = compat_urllib_parse.urlencode({'video_id': video_id,
1126                                                   'el': 'player_embedded',
1127                                                   'gl': 'US',
1128                                                   'hl': 'en',
1129                                                   'eurl': 'https://youtube.googleapis.com/v/' + video_id,
1130                                                   'asv': 3,
1131                                                   'sts':'1588',
1132                                                   })
1133             video_info_url = 'https://www.youtube.com/get_video_info?' + data
1134             video_info_webpage = self._download_webpage(video_info_url, video_id,
1135                                     note=False,
1136                                     errnote='unable to download video info webpage')
1137             video_info = compat_parse_qs(video_info_webpage)
1138         else:
1139             age_gate = False
1140             for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
1141                 video_info_url = ('https://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
1142                         % (video_id, el_type))
1143                 video_info_webpage = self._download_webpage(video_info_url, video_id,
1144                                         note=False,
1145                                         errnote='unable to download video info webpage')
1146                 video_info = compat_parse_qs(video_info_webpage)
1147                 if 'token' in video_info:
1148                     break
1149         if 'token' not in video_info:
1150             if 'reason' in video_info:
1151                 raise ExtractorError(u'YouTube said: %s' % video_info['reason'][0], expected=True)
1152             else:
1153                 raise ExtractorError(u'"token" parameter not in video info for unknown reason')
1154
1155         if 'view_count' in video_info:
1156             view_count = int(video_info['view_count'][0])
1157         else:
1158             view_count = None
1159
1160         # Check for "rental" videos
1161         if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
1162             raise ExtractorError(u'"rental" videos not supported')
1163
1164         # Start extracting information
1165         self.report_information_extraction(video_id)
1166
1167         # uploader
1168         if 'author' not in video_info:
1169             raise ExtractorError(u'Unable to extract uploader name')
1170         video_uploader = compat_urllib_parse.unquote_plus(video_info['author'][0])
1171
1172         # uploader_id
1173         video_uploader_id = None
1174         mobj = re.search(r'<link itemprop="url" href="http://www.youtube.com/(?:user|channel)/([^"]+)">', video_webpage)
1175         if mobj is not None:
1176             video_uploader_id = mobj.group(1)
1177         else:
1178             self._downloader.report_warning(u'unable to extract uploader nickname')
1179
1180         # title
1181         if 'title' in video_info:
1182             video_title = compat_urllib_parse.unquote_plus(video_info['title'][0])
1183         else:
1184             self._downloader.report_warning(u'Unable to extract video title')
1185             video_title = u'_'
1186
1187         # thumbnail image
1188         # We try first to get a high quality image:
1189         m_thumb = re.search(r'<span itemprop="thumbnail".*?href="(.*?)">',
1190                             video_webpage, re.DOTALL)
1191         if m_thumb is not None:
1192             video_thumbnail = m_thumb.group(1)
1193         elif 'thumbnail_url' not in video_info:
1194             self._downloader.report_warning(u'unable to extract video thumbnail')
1195             video_thumbnail = None
1196         else:   # don't panic if we can't find it
1197             video_thumbnail = compat_urllib_parse.unquote_plus(video_info['thumbnail_url'][0])
1198
1199         # upload date
1200         upload_date = None
1201         mobj = re.search(r'id="eow-date.*?>(.*?)</span>', video_webpage, re.DOTALL)
1202         if mobj is not None:
1203             upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
1204             upload_date = unified_strdate(upload_date)
1205
1206         # description
1207         video_description = get_element_by_id("eow-description", video_webpage)
1208         if video_description:
1209             video_description = re.sub(r'''(?x)
1210                 <a\s+
1211                     (?:[a-zA-Z-]+="[^"]+"\s+)*?
1212                     title="([^"]+)"\s+
1213                     (?:[a-zA-Z-]+="[^"]+"\s+)*?
1214                     class="yt-uix-redirect-link"\s*>
1215                 [^<]+
1216                 </a>
1217             ''', r'\1', video_description)
1218             video_description = clean_html(video_description)
1219         else:
1220             fd_mobj = re.search(r'<meta name="description" content="([^"]+)"', video_webpage)
1221             if fd_mobj:
1222                 video_description = unescapeHTML(fd_mobj.group(1))
1223             else:
1224                 video_description = u''
1225
1226         def _extract_count(klass):
1227             count = self._search_regex(
1228                 r'class="%s">([\d,]+)</span>' % re.escape(klass),
1229                 video_webpage, klass, default=None)
1230             if count is not None:
1231                 return int(count.replace(',', ''))
1232             return None
1233         like_count = _extract_count(u'likes-count')
1234         dislike_count = _extract_count(u'dislikes-count')
1235
1236         # subtitles
1237         video_subtitles = self.extract_subtitles(video_id, video_webpage)
1238
1239         if self._downloader.params.get('listsubtitles', False):
1240             self._list_available_subtitles(video_id, video_webpage)
1241             return
1242
1243         if 'length_seconds' not in video_info:
1244             self._downloader.report_warning(u'unable to extract video duration')
1245             video_duration = None
1246         else:
1247             video_duration = int(compat_urllib_parse.unquote_plus(video_info['length_seconds'][0]))
1248
1249         # annotations
1250         video_annotations = None
1251         if self._downloader.params.get('writeannotations', False):
1252                 video_annotations = self._extract_annotations(video_id)
1253
1254         # Decide which formats to download
1255
1256         try:
1257             mobj = re.search(r';ytplayer.config = ({.*?});', video_webpage)
1258             if not mobj:
1259                 raise ValueError('Could not find vevo ID')
1260             info = json.loads(mobj.group(1))
1261             args = info['args']
1262             # Easy way to know if the 's' value is in url_encoded_fmt_stream_map
1263             # this signatures are encrypted
1264             if 'url_encoded_fmt_stream_map' not in args:
1265                 raise ValueError(u'No stream_map present')  # caught below
1266             re_signature = re.compile(r'[&,]s=')
1267             m_s = re_signature.search(args['url_encoded_fmt_stream_map'])
1268             if m_s is not None:
1269                 self.to_screen(u'%s: Encrypted signatures detected.' % video_id)
1270                 video_info['url_encoded_fmt_stream_map'] = [args['url_encoded_fmt_stream_map']]
1271             m_s = re_signature.search(args.get('adaptive_fmts', u''))
1272             if m_s is not None:
1273                 if 'adaptive_fmts' in video_info:
1274                     video_info['adaptive_fmts'][0] += ',' + args['adaptive_fmts']
1275                 else:
1276                     video_info['adaptive_fmts'] = [args['adaptive_fmts']]
1277         except ValueError:
1278             pass
1279
1280         if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
1281             self.report_rtmp_download()
1282             video_url_list = [('_rtmp', video_info['conn'][0])]
1283         elif len(video_info.get('url_encoded_fmt_stream_map', [])) >= 1 or len(video_info.get('adaptive_fmts', [])) >= 1:
1284             encoded_url_map = video_info.get('url_encoded_fmt_stream_map', [''])[0] + ',' + video_info.get('adaptive_fmts',[''])[0]
1285             if 'rtmpe%3Dyes' in encoded_url_map:
1286                 raise ExtractorError('rtmpe downloads are not supported, see https://github.com/rg3/youtube-dl/issues/343 for more information.', expected=True)
1287             url_map = {}
1288             for url_data_str in encoded_url_map.split(','):
1289                 url_data = compat_parse_qs(url_data_str)
1290                 if 'itag' in url_data and 'url' in url_data:
1291                     url = url_data['url'][0]
1292                     if 'sig' in url_data:
1293                         url += '&signature=' + url_data['sig'][0]
1294                     elif 's' in url_data:
1295                         encrypted_sig = url_data['s'][0]
1296                         if self._downloader.params.get('verbose'):
1297                             if age_gate:
1298                                 if player_url is None:
1299                                     player_version = 'unknown'
1300                                 else:
1301                                     player_version = self._search_regex(
1302                                         r'-(.+)\.swf$', player_url,
1303                                         u'flash player', fatal=False)
1304                                 player_desc = 'flash player %s' % player_version
1305                             else:
1306                                 player_version = self._search_regex(
1307                                     r'html5player-(.+?)\.js', video_webpage,
1308                                     'html5 player', fatal=False)
1309                                 player_desc = u'html5 player %s' % player_version
1310
1311                             parts_sizes = u'.'.join(compat_str(len(part)) for part in encrypted_sig.split('.'))
1312                             self.to_screen(u'encrypted signature length %d (%s), itag %s, %s' %
1313                                 (len(encrypted_sig), parts_sizes, url_data['itag'][0], player_desc))
1314
1315                         if not age_gate:
1316                             jsplayer_url_json = self._search_regex(
1317                                 r'"assets":.+?"js":\s*("[^"]+")',
1318                                 video_webpage, u'JS player URL')
1319                             player_url = json.loads(jsplayer_url_json)
1320
1321                         signature = self._decrypt_signature(
1322                             encrypted_sig, video_id, player_url, age_gate)
1323                         url += '&signature=' + signature
1324                     if 'ratebypass' not in url:
1325                         url += '&ratebypass=yes'
1326                     url_map[url_data['itag'][0]] = url
1327             video_url_list = self._get_video_url_list(url_map)
1328         elif video_info.get('hlsvp'):
1329             manifest_url = video_info['hlsvp'][0]
1330             url_map = self._extract_from_m3u8(manifest_url, video_id)
1331             video_url_list = self._get_video_url_list(url_map)
1332         else:
1333             raise ExtractorError(u'no conn, hlsvp or url_encoded_fmt_stream_map information found in video info')
1334
1335         formats = []
1336         for itag, video_real_url in video_url_list:
1337             dct = {
1338                 'format_id': itag,
1339                 'url': video_real_url,
1340                 'player_url': player_url,
1341             }
1342             dct.update(self._formats[itag])
1343             formats.append(dct)
1344
1345         self._sort_formats(formats)
1346
1347         return {
1348             'id':           video_id,
1349             'uploader':     video_uploader,
1350             'uploader_id':  video_uploader_id,
1351             'upload_date':  upload_date,
1352             'title':        video_title,
1353             'thumbnail':    video_thumbnail,
1354             'description':  video_description,
1355             'subtitles':    video_subtitles,
1356             'duration':     video_duration,
1357             'age_limit':    18 if age_gate else 0,
1358             'annotations':  video_annotations,
1359             'webpage_url': 'https://www.youtube.com/watch?v=%s' % video_id,
1360             'view_count':   view_count,
1361             'like_count': like_count,
1362             'dislike_count': dislike_count,
1363             'formats':      formats,
1364         }
1365
1366 class YoutubePlaylistIE(YoutubeBaseInfoExtractor):
1367     IE_DESC = u'YouTube.com playlists'
1368     _VALID_URL = r"""(?:
1369                         (?:https?://)?
1370                         (?:\w+\.)?
1371                         youtube\.com/
1372                         (?:
1373                            (?:course|view_play_list|my_playlists|artist|playlist|watch)
1374                            \? (?:.*?&)*? (?:p|a|list)=
1375                         |  p/
1376                         )
1377                         ((?:PL|EC|UU|FL|RD)?[0-9A-Za-z-_]{10,})
1378                         .*
1379                      |
1380                         ((?:PL|EC|UU|FL|RD)[0-9A-Za-z-_]{10,})
1381                      )"""
1382     _TEMPLATE_URL = 'https://www.youtube.com/playlist?list=%s&page=%s'
1383     _MORE_PAGES_INDICATOR = r'data-link-type="next"'
1384     _VIDEO_RE = r'href="/watch\?v=(?P<id>[0-9A-Za-z_-]{11})&amp;[^"]*?index=(?P<index>\d+)'
1385     IE_NAME = u'youtube:playlist'
1386
1387     @classmethod
1388     def suitable(cls, url):
1389         """Receives a URL and returns True if suitable for this IE."""
1390         return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
1391
1392     def _real_initialize(self):
1393         self._login()
1394
1395     def _ids_to_results(self, ids):
1396         return [self.url_result(vid_id, 'Youtube', video_id=vid_id)
1397                        for vid_id in ids]
1398
1399     def _extract_mix(self, playlist_id):
1400         # The mixes are generated from a a single video
1401         # the id of the playlist is just 'RD' + video_id
1402         url = 'https://youtube.com/watch?v=%s&list=%s' % (playlist_id[-11:], playlist_id)
1403         webpage = self._download_webpage(url, playlist_id, u'Downloading Youtube mix')
1404         title_span = (get_element_by_attribute('class', 'title long-title', webpage) or
1405             get_element_by_attribute('class', 'title ', webpage))
1406         title = clean_html(title_span)
1407         video_re = r'data-index="\d+".*?href="/watch\?v=([0-9A-Za-z_-]{11})&amp;[^"]*?list=%s' % re.escape(playlist_id)
1408         ids = orderedSet(re.findall(video_re, webpage))
1409         url_results = self._ids_to_results(ids)
1410
1411         return self.playlist_result(url_results, playlist_id, title)
1412
1413     def _real_extract(self, url):
1414         # Extract playlist id
1415         mobj = re.match(self._VALID_URL, url, re.VERBOSE)
1416         if mobj is None:
1417             raise ExtractorError(u'Invalid URL: %s' % url)
1418         playlist_id = mobj.group(1) or mobj.group(2)
1419
1420         # Check if it's a video-specific URL
1421         query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
1422         if 'v' in query_dict:
1423             video_id = query_dict['v'][0]
1424             if self._downloader.params.get('noplaylist'):
1425                 self.to_screen(u'Downloading just video %s because of --no-playlist' % video_id)
1426                 return self.url_result(video_id, 'Youtube', video_id=video_id)
1427             else:
1428                 self.to_screen(u'Downloading playlist PL%s - add --no-playlist to just download video %s' % (playlist_id, video_id))
1429
1430         if playlist_id.startswith('RD'):
1431             # Mixes require a custom extraction process
1432             return self._extract_mix(playlist_id)
1433         if playlist_id.startswith('TL'):
1434             raise ExtractorError(u'For downloading YouTube.com top lists, use '
1435                 u'the "yttoplist" keyword, for example "youtube-dl \'yttoplist:music:Top Tracks\'"', expected=True)
1436
1437         # Extract the video ids from the playlist pages
1438         ids = []
1439
1440         for page_num in itertools.count(1):
1441             url = self._TEMPLATE_URL % (playlist_id, page_num)
1442             page = self._download_webpage(url, playlist_id, u'Downloading page #%s' % page_num)
1443             matches = re.finditer(self._VIDEO_RE, page)
1444             # We remove the duplicates and the link with index 0
1445             # (it's not the first video of the playlist)
1446             new_ids = orderedSet(m.group('id') for m in matches if m.group('index') != '0')
1447             ids.extend(new_ids)
1448
1449             if re.search(self._MORE_PAGES_INDICATOR, page) is None:
1450                 break
1451
1452         try:
1453             playlist_title = self._og_search_title(page)
1454         except RegexNotFoundError:
1455             self.report_warning(
1456                 u'Playlist page is missing OpenGraph title, falling back ...',
1457                 playlist_id)
1458             playlist_title = self._html_search_regex(
1459                 r'<h1 class="pl-header-title">(.*?)</h1>', page, u'title')
1460
1461         url_results = self._ids_to_results(ids)
1462         return self.playlist_result(url_results, playlist_id, playlist_title)
1463
1464
1465 class YoutubeTopListIE(YoutubePlaylistIE):
1466     IE_NAME = u'youtube:toplist'
1467     IE_DESC = (u'YouTube.com top lists, "yttoplist:{channel}:{list title}"'
1468         u' (Example: "yttoplist:music:Top Tracks")')
1469     _VALID_URL = r'yttoplist:(?P<chann>.*?):(?P<title>.*?)$'
1470
1471     def _real_extract(self, url):
1472         mobj = re.match(self._VALID_URL, url)
1473         channel = mobj.group('chann')
1474         title = mobj.group('title')
1475         query = compat_urllib_parse.urlencode({'title': title})
1476         playlist_re = 'href="([^"]+?%s[^"]+?)"' % re.escape(query)
1477         channel_page = self._download_webpage('https://www.youtube.com/%s' % channel, title)
1478         link = self._html_search_regex(playlist_re, channel_page, u'list')
1479         url = compat_urlparse.urljoin('https://www.youtube.com/', link)
1480
1481         video_re = r'data-index="\d+".*?data-video-id="([0-9A-Za-z_-]{11})"'
1482         ids = []
1483         # sometimes the webpage doesn't contain the videos
1484         # retry until we get them
1485         for i in itertools.count(0):
1486             msg = u'Downloading Youtube mix'
1487             if i > 0:
1488                 msg += ', retry #%d' % i
1489             webpage = self._download_webpage(url, title, msg)
1490             ids = orderedSet(re.findall(video_re, webpage))
1491             if ids:
1492                 break
1493         url_results = self._ids_to_results(ids)
1494         return self.playlist_result(url_results, playlist_title=title)
1495
1496
1497 class YoutubeChannelIE(InfoExtractor):
1498     IE_DESC = u'YouTube.com channels'
1499     _VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)"
1500     _MORE_PAGES_INDICATOR = 'yt-uix-load-more'
1501     _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'
1502     IE_NAME = u'youtube:channel'
1503
1504     def extract_videos_from_page(self, page):
1505         ids_in_page = []
1506         for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&?', page):
1507             if mobj.group(1) not in ids_in_page:
1508                 ids_in_page.append(mobj.group(1))
1509         return ids_in_page
1510
1511     def _real_extract(self, url):
1512         # Extract channel id
1513         mobj = re.match(self._VALID_URL, url)
1514         if mobj is None:
1515             raise ExtractorError(u'Invalid URL: %s' % url)
1516
1517         # Download channel page
1518         channel_id = mobj.group(1)
1519         video_ids = []
1520         url = 'https://www.youtube.com/channel/%s/videos' % channel_id
1521         channel_page = self._download_webpage(url, channel_id)
1522         autogenerated = re.search(r'''(?x)
1523                 class="[^"]*?(?:
1524                     channel-header-autogenerated-label|
1525                     yt-channel-title-autogenerated
1526                 )[^"]*"''', channel_page) is not None
1527
1528         if autogenerated:
1529             # The videos are contained in a single page
1530             # the ajax pages can't be used, they are empty
1531             video_ids = self.extract_videos_from_page(channel_page)
1532         else:
1533             # Download all channel pages using the json-based channel_ajax query
1534             for pagenum in itertools.count(1):
1535                 url = self._MORE_PAGES_URL % (pagenum, channel_id)
1536                 page = self._download_webpage(url, channel_id,
1537                                               u'Downloading page #%s' % pagenum)
1538
1539                 page = json.loads(page)
1540
1541                 ids_in_page = self.extract_videos_from_page(page['content_html'])
1542                 video_ids.extend(ids_in_page)
1543
1544                 if self._MORE_PAGES_INDICATOR not in page['load_more_widget_html']:
1545                     break
1546
1547         self._downloader.to_screen(u'[youtube] Channel %s: Found %i videos' % (channel_id, len(video_ids)))
1548
1549         url_entries = [self.url_result(video_id, 'Youtube', video_id=video_id)
1550                        for video_id in video_ids]
1551         return self.playlist_result(url_entries, channel_id)
1552
1553
1554 class YoutubeUserIE(InfoExtractor):
1555     IE_DESC = u'YouTube.com user videos (URL or "ytuser" keyword)'
1556     _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:user/)?(?!(?:attribution_link|watch)(?:$|[^a-z_A-Z0-9-])))|ytuser:)(?!feed/)([A-Za-z0-9_-]+)'
1557     _TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
1558     _GDATA_PAGE_SIZE = 50
1559     _GDATA_URL = 'http://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d&alt=json'
1560     IE_NAME = u'youtube:user'
1561
1562     @classmethod
1563     def suitable(cls, url):
1564         # Don't return True if the url can be extracted with other youtube
1565         # extractor, the regex would is too permissive and it would match.
1566         other_ies = iter(klass for (name, klass) in globals().items() if name.endswith('IE') and klass is not cls)
1567         if any(ie.suitable(url) for ie in other_ies): return False
1568         else: return super(YoutubeUserIE, cls).suitable(url)
1569
1570     def _real_extract(self, url):
1571         # Extract username
1572         mobj = re.match(self._VALID_URL, url)
1573         if mobj is None:
1574             raise ExtractorError(u'Invalid URL: %s' % url)
1575
1576         username = mobj.group(1)
1577
1578         # Download video ids using YouTube Data API. Result size per
1579         # query is limited (currently to 50 videos) so we need to query
1580         # page by page until there are no video ids - it means we got
1581         # all of them.
1582
1583         url_results = []
1584
1585         for pagenum in itertools.count(0):
1586             start_index = pagenum * self._GDATA_PAGE_SIZE + 1
1587
1588             gdata_url = self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index)
1589             page = self._download_webpage(gdata_url, username,
1590                                           u'Downloading video ids from %d to %d' % (start_index, start_index + self._GDATA_PAGE_SIZE))
1591
1592             try:
1593                 response = json.loads(page)
1594             except ValueError as err:
1595                 raise ExtractorError(u'Invalid JSON in API response: ' + compat_str(err))
1596             if 'entry' not in response['feed']:
1597                 # Number of videos is a multiple of self._MAX_RESULTS
1598                 break
1599
1600             # Extract video identifiers
1601             entries = response['feed']['entry']
1602             for entry in entries:
1603                 title = entry['title']['$t']
1604                 video_id = entry['id']['$t'].split('/')[-1]
1605                 url_results.append({
1606                     '_type': 'url',
1607                     'url': video_id,
1608                     'ie_key': 'Youtube',
1609                     'id': 'video_id',
1610                     'title': title,
1611                 })
1612
1613             # A little optimization - if current page is not
1614             # "full", ie. does not contain PAGE_SIZE video ids then
1615             # we can assume that this page is the last one - there
1616             # are no more ids on further pages - no need to query
1617             # again.
1618
1619             if len(entries) < self._GDATA_PAGE_SIZE:
1620                 break
1621
1622         return self.playlist_result(url_results, playlist_title=username)
1623
1624
1625 class YoutubeSearchIE(SearchInfoExtractor):
1626     IE_DESC = u'YouTube.com searches'
1627     _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc'
1628     _MAX_RESULTS = 1000
1629     IE_NAME = u'youtube:search'
1630     _SEARCH_KEY = 'ytsearch'
1631
1632     def _get_n_results(self, query, n):
1633         """Get a specified number of results for a query"""
1634
1635         video_ids = []
1636         pagenum = 0
1637         limit = n
1638
1639         while (50 * pagenum) < limit:
1640             result_url = self._API_URL % (compat_urllib_parse.quote_plus(query), (50*pagenum)+1)
1641             data_json = self._download_webpage(
1642                 result_url, video_id=u'query "%s"' % query,
1643                 note=u'Downloading page %s' % (pagenum + 1),
1644                 errnote=u'Unable to download API page')
1645             data = json.loads(data_json)
1646             api_response = data['data']
1647
1648             if 'items' not in api_response:
1649                 raise ExtractorError(u'[youtube] No video results')
1650
1651             new_ids = list(video['id'] for video in api_response['items'])
1652             video_ids += new_ids
1653
1654             limit = min(n, api_response['totalItems'])
1655             pagenum += 1
1656
1657         if len(video_ids) > n:
1658             video_ids = video_ids[:n]
1659         videos = [self.url_result(video_id, 'Youtube', video_id=video_id)
1660                   for video_id in video_ids]
1661         return self.playlist_result(videos, query)
1662
1663 class YoutubeSearchDateIE(YoutubeSearchIE):
1664     IE_NAME = YoutubeSearchIE.IE_NAME + ':date'
1665     _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc&orderby=published'
1666     _SEARCH_KEY = 'ytsearchdate'
1667     IE_DESC = u'YouTube.com searches, newest videos first'
1668
1669 class YoutubeShowIE(InfoExtractor):
1670     IE_DESC = u'YouTube.com (multi-season) shows'
1671     _VALID_URL = r'https?://www\.youtube\.com/show/(.*)'
1672     IE_NAME = u'youtube:show'
1673
1674     def _real_extract(self, url):
1675         mobj = re.match(self._VALID_URL, url)
1676         show_name = mobj.group(1)
1677         webpage = self._download_webpage(url, show_name, u'Downloading show webpage')
1678         # There's one playlist for each season of the show
1679         m_seasons = list(re.finditer(r'href="(/playlist\?list=.*?)"', webpage))
1680         self.to_screen(u'%s: Found %s seasons' % (show_name, len(m_seasons)))
1681         return [self.url_result('https://www.youtube.com' + season.group(1), 'YoutubePlaylist') for season in m_seasons]
1682
1683
1684 class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
1685     """
1686     Base class for extractors that fetch info from
1687     http://www.youtube.com/feed_ajax
1688     Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties.
1689     """
1690     _LOGIN_REQUIRED = True
1691     # use action_load_personal_feed instead of action_load_system_feed
1692     _PERSONAL_FEED = False
1693
1694     @property
1695     def _FEED_TEMPLATE(self):
1696         action = 'action_load_system_feed'
1697         if self._PERSONAL_FEED:
1698             action = 'action_load_personal_feed'
1699         return 'http://www.youtube.com/feed_ajax?%s=1&feed_name=%s&paging=%%s' % (action, self._FEED_NAME)
1700
1701     @property
1702     def IE_NAME(self):
1703         return u'youtube:%s' % self._FEED_NAME
1704
1705     def _real_initialize(self):
1706         self._login()
1707
1708     def _real_extract(self, url):
1709         feed_entries = []
1710         paging = 0
1711         for i in itertools.count(1):
1712             info = self._download_webpage(self._FEED_TEMPLATE % paging,
1713                                           u'%s feed' % self._FEED_NAME,
1714                                           u'Downloading page %s' % i)
1715             info = json.loads(info)
1716             feed_html = info['feed_html']
1717             m_ids = re.finditer(r'"/watch\?v=(.*?)["&]', feed_html)
1718             ids = orderedSet(m.group(1) for m in m_ids)
1719             feed_entries.extend(
1720                 self.url_result(video_id, 'Youtube', video_id=video_id)
1721                 for video_id in ids)
1722             if info['paging'] is None:
1723                 break
1724             paging = info['paging']
1725         return self.playlist_result(feed_entries, playlist_title=self._PLAYLIST_TITLE)
1726
1727 class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor):
1728     IE_DESC = u'YouTube.com subscriptions feed, "ytsubs" keyword(requires authentication)'
1729     _VALID_URL = r'https?://www\.youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
1730     _FEED_NAME = 'subscriptions'
1731     _PLAYLIST_TITLE = u'Youtube Subscriptions'
1732
1733 class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
1734     IE_DESC = u'YouTube.com recommended videos, "ytrec" keyword (requires authentication)'
1735     _VALID_URL = r'https?://www\.youtube\.com/feed/recommended|:ytrec(?:ommended)?'
1736     _FEED_NAME = 'recommended'
1737     _PLAYLIST_TITLE = u'Youtube Recommended videos'
1738
1739 class YoutubeWatchLaterIE(YoutubeFeedsInfoExtractor):
1740     IE_DESC = u'Youtube watch later list, "ytwatchlater" keyword (requires authentication)'
1741     _VALID_URL = r'https?://www\.youtube\.com/feed/watch_later|:ytwatchlater'
1742     _FEED_NAME = 'watch_later'
1743     _PLAYLIST_TITLE = u'Youtube Watch Later'
1744     _PERSONAL_FEED = True
1745
1746 class YoutubeHistoryIE(YoutubeFeedsInfoExtractor):
1747     IE_DESC = u'Youtube watch history, "ythistory" keyword (requires authentication)'
1748     _VALID_URL = u'https?://www\.youtube\.com/feed/history|:ythistory'
1749     _FEED_NAME = 'history'
1750     _PERSONAL_FEED = True
1751     _PLAYLIST_TITLE = u'Youtube Watch History'
1752
1753 class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
1754     IE_NAME = u'youtube:favorites'
1755     IE_DESC = u'YouTube.com favourite videos, "ytfav" keyword (requires authentication)'
1756     _VALID_URL = r'https?://www\.youtube\.com/my_favorites|:ytfav(?:ou?rites)?'
1757     _LOGIN_REQUIRED = True
1758
1759     def _real_extract(self, url):
1760         webpage = self._download_webpage('https://www.youtube.com/my_favorites', 'Youtube Favourites videos')
1761         playlist_id = self._search_regex(r'list=(.+?)["&]', webpage, u'favourites playlist id')
1762         return self.url_result(playlist_id, 'YoutubePlaylist')
1763
1764
1765 class YoutubeTruncatedURLIE(InfoExtractor):
1766     IE_NAME = 'youtube:truncated_url'
1767     IE_DESC = False  # Do not list
1768     _VALID_URL = r'(?:https?://)?[^/]+/watch\?feature=[a-z_]+$'
1769
1770     def _real_extract(self, url):
1771         raise ExtractorError(
1772             u'Did you forget to quote the URL? Remember that & is a meta '
1773             u'character in most shells, so you want to put the URL in quotes, '
1774             u'like  youtube-dl '
1775             u'"http://www.youtube.com/watch?feature=foo&v=BaW_jenozKc" '
1776             u' or simply  youtube-dl BaW_jenozKc  .',
1777             expected=True)