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[auengine] Do not return unnecessary ext
[yt-dlp.git] / 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 socket
11 import string
12 import struct
13 import traceback
14 import xml.etree.ElementTree
15 import zlib
16
17 from .common import InfoExtractor, SearchInfoExtractor
18 from .subtitles import SubtitlesInfoExtractor
19 from ..utils import (
20 compat_chr,
21 compat_http_client,
22 compat_parse_qs,
23 compat_urllib_error,
24 compat_urllib_parse,
25 compat_urllib_request,
26 compat_urlparse,
27 compat_str,
28
29 clean_html,
30 get_cachedir,
31 get_element_by_id,
32 ExtractorError,
33 unescapeHTML,
34 unified_strdate,
35 orderedSet,
36 write_json_file,
37 )
38
39 class YoutubeBaseInfoExtractor(InfoExtractor):
40 """Provide base functions for Youtube extractors"""
41 _LOGIN_URL = 'https://accounts.google.com/ServiceLogin'
42 _LANG_URL = r'https://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
43 _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
44 _NETRC_MACHINE = 'youtube'
45 # If True it will raise an error if no login info is provided
46 _LOGIN_REQUIRED = False
47
48 def report_lang(self):
49 """Report attempt to set language."""
50 self.to_screen(u'Setting language')
51
52 def _set_language(self):
53 request = compat_urllib_request.Request(self._LANG_URL)
54 try:
55 self.report_lang()
56 compat_urllib_request.urlopen(request).read()
57 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
58 self._downloader.report_warning(u'unable to set language: %s' % compat_str(err))
59 return False
60 return True
61
62 def _login(self):
63 (username, password) = self._get_login_info()
64 # No authentication to be performed
65 if username is None:
66 if self._LOGIN_REQUIRED:
67 raise ExtractorError(u'No login info available, needed for using %s.' % self.IE_NAME, expected=True)
68 return False
69
70 request = compat_urllib_request.Request(self._LOGIN_URL)
71 try:
72 login_page = compat_urllib_request.urlopen(request).read().decode('utf-8')
73 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
74 self._downloader.report_warning(u'unable to fetch login page: %s' % compat_str(err))
75 return False
76
77 galx = self._search_regex(r'(?s)<input.+?name="GALX".+?value="(.+?)"',
78 login_page, u'Login GALX parameter')
79
80 # Log in
81 login_form_strs = {
82 u'continue': u'https://www.youtube.com/signin?action_handle_signin=true&feature=sign_in_button&hl=en_US&nomobiletemp=1',
83 u'Email': username,
84 u'GALX': galx,
85 u'Passwd': password,
86 u'PersistentCookie': u'yes',
87 u'_utf8': u'霱',
88 u'bgresponse': u'js_disabled',
89 u'checkConnection': u'',
90 u'checkedDomains': u'youtube',
91 u'dnConn': u'',
92 u'pstMsg': u'0',
93 u'rmShown': u'1',
94 u'secTok': u'',
95 u'signIn': u'Sign in',
96 u'timeStmp': u'',
97 u'service': u'youtube',
98 u'uilel': u'3',
99 u'hl': u'en_US',
100 }
101 # Convert to UTF-8 *before* urlencode because Python 2.x's urlencode
102 # chokes on unicode
103 login_form = dict((k.encode('utf-8'), v.encode('utf-8')) for k,v in login_form_strs.items())
104 login_data = compat_urllib_parse.urlencode(login_form).encode('ascii')
105 request = compat_urllib_request.Request(self._LOGIN_URL, login_data)
106 try:
107 self.report_login()
108 login_results = compat_urllib_request.urlopen(request).read().decode('utf-8')
109 if re.search(r'(?i)<form[^>]* id="gaia_loginform"', login_results) is not None:
110 self._downloader.report_warning(u'unable to log in: bad username or password')
111 return False
112 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
113 self._downloader.report_warning(u'unable to log in: %s' % compat_str(err))
114 return False
115 return True
116
117 def _confirm_age(self):
118 age_form = {
119 'next_url': '/',
120 'action_confirm': 'Confirm',
121 }
122 request = compat_urllib_request.Request(self._AGE_URL, compat_urllib_parse.urlencode(age_form))
123 try:
124 self.report_age_confirmation()
125 compat_urllib_request.urlopen(request).read().decode('utf-8')
126 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
127 raise ExtractorError(u'Unable to confirm age: %s' % compat_str(err))
128 return True
129
130 def _real_initialize(self):
131 if self._downloader is None:
132 return
133 if not self._set_language():
134 return
135 if not self._login():
136 return
137 self._confirm_age()
138
139
140 class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
141 IE_DESC = u'YouTube.com'
142 _VALID_URL = r"""(?xi)^
143 (
144 (?:https?://|//)? # http(s):// or protocol-independent URL (optional)
145 (?:(?:(?:(?:\w+\.)?youtube(?:-nocookie)?\.com/|
146 tube\.majestyc\.net/|
147 youtube\.googleapis\.com/) # the various hostnames, with wildcard subdomains
148 (?:.*?\#/)? # handle anchor (#/) redirect urls
149 (?: # the various things that can precede the ID:
150 (?:(?:v|embed|e)/) # v/ or embed/ or e/
151 |(?: # or the v= param in all its forms
152 (?:(?:watch|movie)(?:_popup)?(?:\.php)?)? # preceding watch(_popup|.php) or nothing (like /?v=xxxx)
153 (?:\?|\#!?) # the params delimiter ? or # or #!
154 (?:.*?&)? # any other preceding param (like /?s=tuff&v=xxxx)
155 v=
156 )
157 ))
158 |youtu\.be/ # just youtu.be/xxxx
159 )
160 )? # all until now is optional -> you can pass the naked ID
161 ([0-9A-Za-z_-]{11}) # here is it! the YouTube video ID
162 (?(1).+)? # if we found the ID, everything can follow
163 $"""
164 _NEXT_URL_RE = r'[\?&]next_url=([^&]+)'
165 # Listed in order of quality
166 _available_formats = ['38', '37', '46', '22', '45', '35', '44', '34', '18', '43', '6', '5', '36', '17', '13',
167 # Apple HTTP Live Streaming
168 '96', '95', '94', '93', '92', '132', '151',
169 # 3D
170 '85', '84', '102', '83', '101', '82', '100',
171 # Dash video
172 '138', '137', '248', '136', '247', '135', '246',
173 '245', '244', '134', '243', '133', '242', '160',
174 # Dash audio
175 '141', '172', '140', '171', '139',
176 ]
177 _available_formats_prefer_free = ['38', '46', '37', '45', '22', '44', '35', '43', '34', '18', '6', '5', '36', '17', '13',
178 # Apple HTTP Live Streaming
179 '96', '95', '94', '93', '92', '132', '151',
180 # 3D
181 '85', '102', '84', '101', '83', '100', '82',
182 # Dash video
183 '138', '248', '137', '247', '136', '246', '245',
184 '244', '135', '243', '134', '242', '133', '160',
185 # Dash audio
186 '172', '141', '171', '140', '139',
187 ]
188 _video_formats_map = {
189 'flv': ['35', '34', '6', '5'],
190 '3gp': ['36', '17', '13'],
191 'mp4': ['38', '37', '22', '18'],
192 'webm': ['46', '45', '44', '43'],
193 }
194 _video_extensions = {
195 '13': '3gp',
196 '17': '3gp',
197 '18': 'mp4',
198 '22': 'mp4',
199 '36': '3gp',
200 '37': 'mp4',
201 '38': 'mp4',
202 '43': 'webm',
203 '44': 'webm',
204 '45': 'webm',
205 '46': 'webm',
206
207 # 3d videos
208 '82': 'mp4',
209 '83': 'mp4',
210 '84': 'mp4',
211 '85': 'mp4',
212 '100': 'webm',
213 '101': 'webm',
214 '102': 'webm',
215
216 # Apple HTTP Live Streaming
217 '92': 'mp4',
218 '93': 'mp4',
219 '94': 'mp4',
220 '95': 'mp4',
221 '96': 'mp4',
222 '132': 'mp4',
223 '151': 'mp4',
224
225 # Dash mp4
226 '133': 'mp4',
227 '134': 'mp4',
228 '135': 'mp4',
229 '136': 'mp4',
230 '137': 'mp4',
231 '138': 'mp4',
232 '160': 'mp4',
233
234 # Dash mp4 audio
235 '139': 'm4a',
236 '140': 'm4a',
237 '141': 'm4a',
238
239 # Dash webm
240 '171': 'webm',
241 '172': 'webm',
242 '242': 'webm',
243 '243': 'webm',
244 '244': 'webm',
245 '245': 'webm',
246 '246': 'webm',
247 '247': 'webm',
248 '248': 'webm',
249 }
250 _video_dimensions = {
251 '5': '240x400',
252 '6': '???',
253 '13': '???',
254 '17': '144x176',
255 '18': '360x640',
256 '22': '720x1280',
257 '34': '360x640',
258 '35': '480x854',
259 '36': '240x320',
260 '37': '1080x1920',
261 '38': '3072x4096',
262 '43': '360x640',
263 '44': '480x854',
264 '45': '720x1280',
265 '46': '1080x1920',
266 '82': '360p',
267 '83': '480p',
268 '84': '720p',
269 '85': '1080p',
270 '92': '240p',
271 '93': '360p',
272 '94': '480p',
273 '95': '720p',
274 '96': '1080p',
275 '100': '360p',
276 '101': '480p',
277 '102': '720p',
278 '132': '240p',
279 '151': '72p',
280 '133': '240p',
281 '134': '360p',
282 '135': '480p',
283 '136': '720p',
284 '137': '1080p',
285 '138': '>1080p',
286 '139': '48k',
287 '140': '128k',
288 '141': '256k',
289 '160': '192p',
290 '171': '128k',
291 '172': '256k',
292 '242': '240p',
293 '243': '360p',
294 '244': '480p',
295 '245': '480p',
296 '246': '480p',
297 '247': '720p',
298 '248': '1080p',
299 }
300 _special_itags = {
301 '82': '3D',
302 '83': '3D',
303 '84': '3D',
304 '85': '3D',
305 '100': '3D',
306 '101': '3D',
307 '102': '3D',
308 '133': 'DASH Video',
309 '134': 'DASH Video',
310 '135': 'DASH Video',
311 '136': 'DASH Video',
312 '137': 'DASH Video',
313 '138': 'DASH Video',
314 '139': 'DASH Audio',
315 '140': 'DASH Audio',
316 '141': 'DASH Audio',
317 '160': 'DASH Video',
318 '171': 'DASH Audio',
319 '172': 'DASH Audio',
320 '242': 'DASH Video',
321 '243': 'DASH Video',
322 '244': 'DASH Video',
323 '245': 'DASH Video',
324 '246': 'DASH Video',
325 '247': 'DASH Video',
326 '248': 'DASH Video',
327 }
328
329 IE_NAME = u'youtube'
330 _TESTS = [
331 {
332 u"url": u"http://www.youtube.com/watch?v=BaW_jenozKc",
333 u"file": u"BaW_jenozKc.mp4",
334 u"info_dict": {
335 u"title": u"youtube-dl test video \"'/\\ä↭𝕐",
336 u"uploader": u"Philipp Hagemeister",
337 u"uploader_id": u"phihag",
338 u"upload_date": u"20121002",
339 u"description": u"test chars: \"'/\\ä↭𝕐\n\nThis is a test video for youtube-dl.\n\nFor more information, contact phihag@phihag.de ."
340 }
341 },
342 {
343 u"url": u"http://www.youtube.com/watch?v=UxxajLWwzqY",
344 u"file": u"UxxajLWwzqY.mp4",
345 u"note": u"Test generic use_cipher_signature video (#897)",
346 u"info_dict": {
347 u"upload_date": u"20120506",
348 u"title": u"Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO]",
349 u"description": u"md5:5b292926389560516e384ac437c0ec07",
350 u"uploader": u"Icona Pop",
351 u"uploader_id": u"IconaPop"
352 }
353 },
354 {
355 u"url": u"https://www.youtube.com/watch?v=07FYdnEawAQ",
356 u"file": u"07FYdnEawAQ.mp4",
357 u"note": u"Test VEVO video with age protection (#956)",
358 u"info_dict": {
359 u"upload_date": u"20130703",
360 u"title": u"Justin Timberlake - Tunnel Vision (Explicit)",
361 u"description": u"md5:64249768eec3bc4276236606ea996373",
362 u"uploader": u"justintimberlakeVEVO",
363 u"uploader_id": u"justintimberlakeVEVO"
364 }
365 },
366 {
367 u"url": u"//www.YouTube.com/watch?v=yZIXLfi8CZQ",
368 u"file": u"yZIXLfi8CZQ.mp4",
369 u"note": u"Embed-only video (#1746)",
370 u"info_dict": {
371 u"upload_date": u"20120608",
372 u"title": u"Principal Sexually Assaults A Teacher - Episode 117 - 8th June 2012",
373 u"description": u"md5:09b78bd971f1e3e289601dfba15ca4f7",
374 u"uploader": u"SET India",
375 u"uploader_id": u"setindia"
376 }
377 },
378 ]
379
380
381 @classmethod
382 def suitable(cls, url):
383 """Receives a URL and returns True if suitable for this IE."""
384 if YoutubePlaylistIE.suitable(url): return False
385 return re.match(cls._VALID_URL, url) is not None
386
387 def __init__(self, *args, **kwargs):
388 super(YoutubeIE, self).__init__(*args, **kwargs)
389 self._player_cache = {}
390
391 def report_video_webpage_download(self, video_id):
392 """Report attempt to download video webpage."""
393 self.to_screen(u'%s: Downloading video webpage' % video_id)
394
395 def report_video_info_webpage_download(self, video_id):
396 """Report attempt to download video info webpage."""
397 self.to_screen(u'%s: Downloading video info webpage' % video_id)
398
399 def report_information_extraction(self, video_id):
400 """Report attempt to extract video information."""
401 self.to_screen(u'%s: Extracting video information' % video_id)
402
403 def report_unavailable_format(self, video_id, format):
404 """Report extracted video URL."""
405 self.to_screen(u'%s: Format %s not available' % (video_id, format))
406
407 def report_rtmp_download(self):
408 """Indicate the download will use the RTMP protocol."""
409 self.to_screen(u'RTMP download detected')
410
411 def _extract_signature_function(self, video_id, player_url, slen):
412 id_m = re.match(r'.*-(?P<id>[a-zA-Z0-9_-]+)\.(?P<ext>[a-z]+)$',
413 player_url)
414 player_type = id_m.group('ext')
415 player_id = id_m.group('id')
416
417 # Read from filesystem cache
418 func_id = '%s_%s_%d' % (player_type, player_id, slen)
419 assert os.path.basename(func_id) == func_id
420 cache_dir = get_cachedir(self._downloader.params)
421
422 cache_enabled = cache_dir is not None
423 if cache_enabled:
424 cache_fn = os.path.join(os.path.expanduser(cache_dir),
425 u'youtube-sigfuncs',
426 func_id + '.json')
427 try:
428 with io.open(cache_fn, 'r', encoding='utf-8') as cachef:
429 cache_spec = json.load(cachef)
430 return lambda s: u''.join(s[i] for i in cache_spec)
431 except IOError:
432 pass # No cache available
433
434 if player_type == 'js':
435 code = self._download_webpage(
436 player_url, video_id,
437 note=u'Downloading %s player %s' % (player_type, player_id),
438 errnote=u'Download of %s failed' % player_url)
439 res = self._parse_sig_js(code)
440 elif player_type == 'swf':
441 urlh = self._request_webpage(
442 player_url, video_id,
443 note=u'Downloading %s player %s' % (player_type, player_id),
444 errnote=u'Download of %s failed' % player_url)
445 code = urlh.read()
446 res = self._parse_sig_swf(code)
447 else:
448 assert False, 'Invalid player type %r' % player_type
449
450 if cache_enabled:
451 try:
452 test_string = u''.join(map(compat_chr, range(slen)))
453 cache_res = res(test_string)
454 cache_spec = [ord(c) for c in cache_res]
455 try:
456 os.makedirs(os.path.dirname(cache_fn))
457 except OSError as ose:
458 if ose.errno != errno.EEXIST:
459 raise
460 write_json_file(cache_spec, cache_fn)
461 except Exception:
462 tb = traceback.format_exc()
463 self._downloader.report_warning(
464 u'Writing cache to %r failed: %s' % (cache_fn, tb))
465
466 return res
467
468 def _print_sig_code(self, func, slen):
469 def gen_sig_code(idxs):
470 def _genslice(start, end, step):
471 starts = u'' if start == 0 else str(start)
472 ends = (u':%d' % (end+step)) if end + step >= 0 else u':'
473 steps = u'' if step == 1 else (u':%d' % step)
474 return u's[%s%s%s]' % (starts, ends, steps)
475
476 step = None
477 start = '(Never used)' # Quelch pyflakes warnings - start will be
478 # set as soon as step is set
479 for i, prev in zip(idxs[1:], idxs[:-1]):
480 if step is not None:
481 if i - prev == step:
482 continue
483 yield _genslice(start, prev, step)
484 step = None
485 continue
486 if i - prev in [-1, 1]:
487 step = i - prev
488 start = prev
489 continue
490 else:
491 yield u's[%d]' % prev
492 if step is None:
493 yield u's[%d]' % i
494 else:
495 yield _genslice(start, i, step)
496
497 test_string = u''.join(map(compat_chr, range(slen)))
498 cache_res = func(test_string)
499 cache_spec = [ord(c) for c in cache_res]
500 expr_code = u' + '.join(gen_sig_code(cache_spec))
501 code = u'if len(s) == %d:\n return %s\n' % (slen, expr_code)
502 self.to_screen(u'Extracted signature function:\n' + code)
503
504 def _parse_sig_js(self, jscode):
505 funcname = self._search_regex(
506 r'signature=([a-zA-Z]+)', jscode,
507 u'Initial JS player signature function name')
508
509 functions = {}
510
511 def argidx(varname):
512 return string.lowercase.index(varname)
513
514 def interpret_statement(stmt, local_vars, allow_recursion=20):
515 if allow_recursion < 0:
516 raise ExtractorError(u'Recursion limit reached')
517
518 if stmt.startswith(u'var '):
519 stmt = stmt[len(u'var '):]
520 ass_m = re.match(r'^(?P<out>[a-z]+)(?:\[(?P<index>[^\]]+)\])?' +
521 r'=(?P<expr>.*)$', stmt)
522 if ass_m:
523 if ass_m.groupdict().get('index'):
524 def assign(val):
525 lvar = local_vars[ass_m.group('out')]
526 idx = interpret_expression(ass_m.group('index'),
527 local_vars, allow_recursion)
528 assert isinstance(idx, int)
529 lvar[idx] = val
530 return val
531 expr = ass_m.group('expr')
532 else:
533 def assign(val):
534 local_vars[ass_m.group('out')] = val
535 return val
536 expr = ass_m.group('expr')
537 elif stmt.startswith(u'return '):
538 assign = lambda v: v
539 expr = stmt[len(u'return '):]
540 else:
541 raise ExtractorError(
542 u'Cannot determine left side of statement in %r' % stmt)
543
544 v = interpret_expression(expr, local_vars, allow_recursion)
545 return assign(v)
546
547 def interpret_expression(expr, local_vars, allow_recursion):
548 if expr.isdigit():
549 return int(expr)
550
551 if expr.isalpha():
552 return local_vars[expr]
553
554 m = re.match(r'^(?P<in>[a-z]+)\.(?P<member>.*)$', expr)
555 if m:
556 member = m.group('member')
557 val = local_vars[m.group('in')]
558 if member == 'split("")':
559 return list(val)
560 if member == 'join("")':
561 return u''.join(val)
562 if member == 'length':
563 return len(val)
564 if member == 'reverse()':
565 return val[::-1]
566 slice_m = re.match(r'slice\((?P<idx>.*)\)', member)
567 if slice_m:
568 idx = interpret_expression(
569 slice_m.group('idx'), local_vars, allow_recursion-1)
570 return val[idx:]
571
572 m = re.match(
573 r'^(?P<in>[a-z]+)\[(?P<idx>.+)\]$', expr)
574 if m:
575 val = local_vars[m.group('in')]
576 idx = interpret_expression(m.group('idx'), local_vars,
577 allow_recursion-1)
578 return val[idx]
579
580 m = re.match(r'^(?P<a>.+?)(?P<op>[%])(?P<b>.+?)$', expr)
581 if m:
582 a = interpret_expression(m.group('a'),
583 local_vars, allow_recursion)
584 b = interpret_expression(m.group('b'),
585 local_vars, allow_recursion)
586 return a % b
587
588 m = re.match(
589 r'^(?P<func>[a-zA-Z]+)\((?P<args>[a-z0-9,]+)\)$', expr)
590 if m:
591 fname = m.group('func')
592 if fname not in functions:
593 functions[fname] = extract_function(fname)
594 argvals = [int(v) if v.isdigit() else local_vars[v]
595 for v in m.group('args').split(',')]
596 return functions[fname](argvals)
597 raise ExtractorError(u'Unsupported JS expression %r' % expr)
598
599 def extract_function(funcname):
600 func_m = re.search(
601 r'function ' + re.escape(funcname) +
602 r'\((?P<args>[a-z,]+)\){(?P<code>[^}]+)}',
603 jscode)
604 argnames = func_m.group('args').split(',')
605
606 def resf(args):
607 local_vars = dict(zip(argnames, args))
608 for stmt in func_m.group('code').split(';'):
609 res = interpret_statement(stmt, local_vars)
610 return res
611 return resf
612
613 initial_function = extract_function(funcname)
614 return lambda s: initial_function([s])
615
616 def _parse_sig_swf(self, file_contents):
617 if file_contents[1:3] != b'WS':
618 raise ExtractorError(
619 u'Not an SWF file; header is %r' % file_contents[:3])
620 if file_contents[:1] == b'C':
621 content = zlib.decompress(file_contents[8:])
622 else:
623 raise NotImplementedError(u'Unsupported compression format %r' %
624 file_contents[:1])
625
626 def extract_tags(content):
627 pos = 0
628 while pos < len(content):
629 header16 = struct.unpack('<H', content[pos:pos+2])[0]
630 pos += 2
631 tag_code = header16 >> 6
632 tag_len = header16 & 0x3f
633 if tag_len == 0x3f:
634 tag_len = struct.unpack('<I', content[pos:pos+4])[0]
635 pos += 4
636 assert pos+tag_len <= len(content)
637 yield (tag_code, content[pos:pos+tag_len])
638 pos += tag_len
639
640 code_tag = next(tag
641 for tag_code, tag in extract_tags(content)
642 if tag_code == 82)
643 p = code_tag.index(b'\0', 4) + 1
644 code_reader = io.BytesIO(code_tag[p:])
645
646 # Parse ABC (AVM2 ByteCode)
647 def read_int(reader=None):
648 if reader is None:
649 reader = code_reader
650 res = 0
651 shift = 0
652 for _ in range(5):
653 buf = reader.read(1)
654 assert len(buf) == 1
655 b = struct.unpack('<B', buf)[0]
656 res = res | ((b & 0x7f) << shift)
657 if b & 0x80 == 0:
658 break
659 shift += 7
660 return res
661
662 def u30(reader=None):
663 res = read_int(reader)
664 assert res & 0xf0000000 == 0
665 return res
666 u32 = read_int
667
668 def s32(reader=None):
669 v = read_int(reader)
670 if v & 0x80000000 != 0:
671 v = - ((v ^ 0xffffffff) + 1)
672 return v
673
674 def read_string(reader=None):
675 if reader is None:
676 reader = code_reader
677 slen = u30(reader)
678 resb = reader.read(slen)
679 assert len(resb) == slen
680 return resb.decode('utf-8')
681
682 def read_bytes(count, reader=None):
683 if reader is None:
684 reader = code_reader
685 resb = reader.read(count)
686 assert len(resb) == count
687 return resb
688
689 def read_byte(reader=None):
690 resb = read_bytes(1, reader=reader)
691 res = struct.unpack('<B', resb)[0]
692 return res
693
694 # minor_version + major_version
695 read_bytes(2 + 2)
696
697 # Constant pool
698 int_count = u30()
699 for _c in range(1, int_count):
700 s32()
701 uint_count = u30()
702 for _c in range(1, uint_count):
703 u32()
704 double_count = u30()
705 read_bytes((double_count-1) * 8)
706 string_count = u30()
707 constant_strings = [u'']
708 for _c in range(1, string_count):
709 s = read_string()
710 constant_strings.append(s)
711 namespace_count = u30()
712 for _c in range(1, namespace_count):
713 read_bytes(1) # kind
714 u30() # name
715 ns_set_count = u30()
716 for _c in range(1, ns_set_count):
717 count = u30()
718 for _c2 in range(count):
719 u30()
720 multiname_count = u30()
721 MULTINAME_SIZES = {
722 0x07: 2, # QName
723 0x0d: 2, # QNameA
724 0x0f: 1, # RTQName
725 0x10: 1, # RTQNameA
726 0x11: 0, # RTQNameL
727 0x12: 0, # RTQNameLA
728 0x09: 2, # Multiname
729 0x0e: 2, # MultinameA
730 0x1b: 1, # MultinameL
731 0x1c: 1, # MultinameLA
732 }
733 multinames = [u'']
734 for _c in range(1, multiname_count):
735 kind = u30()
736 assert kind in MULTINAME_SIZES, u'Invalid multiname kind %r' % kind
737 if kind == 0x07:
738 u30() # namespace_idx
739 name_idx = u30()
740 multinames.append(constant_strings[name_idx])
741 else:
742 multinames.append('[MULTINAME kind: %d]' % kind)
743 for _c2 in range(MULTINAME_SIZES[kind]):
744 u30()
745
746 # Methods
747 method_count = u30()
748 MethodInfo = collections.namedtuple(
749 'MethodInfo',
750 ['NEED_ARGUMENTS', 'NEED_REST'])
751 method_infos = []
752 for method_id in range(method_count):
753 param_count = u30()
754 u30() # return type
755 for _ in range(param_count):
756 u30() # param type
757 u30() # name index (always 0 for youtube)
758 flags = read_byte()
759 if flags & 0x08 != 0:
760 # Options present
761 option_count = u30()
762 for c in range(option_count):
763 u30() # val
764 read_bytes(1) # kind
765 if flags & 0x80 != 0:
766 # Param names present
767 for _ in range(param_count):
768 u30() # param name
769 mi = MethodInfo(flags & 0x01 != 0, flags & 0x04 != 0)
770 method_infos.append(mi)
771
772 # Metadata
773 metadata_count = u30()
774 for _c in range(metadata_count):
775 u30() # name
776 item_count = u30()
777 for _c2 in range(item_count):
778 u30() # key
779 u30() # value
780
781 def parse_traits_info():
782 trait_name_idx = u30()
783 kind_full = read_byte()
784 kind = kind_full & 0x0f
785 attrs = kind_full >> 4
786 methods = {}
787 if kind in [0x00, 0x06]: # Slot or Const
788 u30() # Slot id
789 u30() # type_name_idx
790 vindex = u30()
791 if vindex != 0:
792 read_byte() # vkind
793 elif kind in [0x01, 0x02, 0x03]: # Method / Getter / Setter
794 u30() # disp_id
795 method_idx = u30()
796 methods[multinames[trait_name_idx]] = method_idx
797 elif kind == 0x04: # Class
798 u30() # slot_id
799 u30() # classi
800 elif kind == 0x05: # Function
801 u30() # slot_id
802 function_idx = u30()
803 methods[function_idx] = multinames[trait_name_idx]
804 else:
805 raise ExtractorError(u'Unsupported trait kind %d' % kind)
806
807 if attrs & 0x4 != 0: # Metadata present
808 metadata_count = u30()
809 for _c3 in range(metadata_count):
810 u30() # metadata index
811
812 return methods
813
814 # Classes
815 TARGET_CLASSNAME = u'SignatureDecipher'
816 searched_idx = multinames.index(TARGET_CLASSNAME)
817 searched_class_id = None
818 class_count = u30()
819 for class_id in range(class_count):
820 name_idx = u30()
821 if name_idx == searched_idx:
822 # We found the class we're looking for!
823 searched_class_id = class_id
824 u30() # super_name idx
825 flags = read_byte()
826 if flags & 0x08 != 0: # Protected namespace is present
827 u30() # protected_ns_idx
828 intrf_count = u30()
829 for _c2 in range(intrf_count):
830 u30()
831 u30() # iinit
832 trait_count = u30()
833 for _c2 in range(trait_count):
834 parse_traits_info()
835
836 if searched_class_id is None:
837 raise ExtractorError(u'Target class %r not found' %
838 TARGET_CLASSNAME)
839
840 method_names = {}
841 method_idxs = {}
842 for class_id in range(class_count):
843 u30() # cinit
844 trait_count = u30()
845 for _c2 in range(trait_count):
846 trait_methods = parse_traits_info()
847 if class_id == searched_class_id:
848 method_names.update(trait_methods.items())
849 method_idxs.update(dict(
850 (idx, name)
851 for name, idx in trait_methods.items()))
852
853 # Scripts
854 script_count = u30()
855 for _c in range(script_count):
856 u30() # init
857 trait_count = u30()
858 for _c2 in range(trait_count):
859 parse_traits_info()
860
861 # Method bodies
862 method_body_count = u30()
863 Method = collections.namedtuple('Method', ['code', 'local_count'])
864 methods = {}
865 for _c in range(method_body_count):
866 method_idx = u30()
867 u30() # max_stack
868 local_count = u30()
869 u30() # init_scope_depth
870 u30() # max_scope_depth
871 code_length = u30()
872 code = read_bytes(code_length)
873 if method_idx in method_idxs:
874 m = Method(code, local_count)
875 methods[method_idxs[method_idx]] = m
876 exception_count = u30()
877 for _c2 in range(exception_count):
878 u30() # from
879 u30() # to
880 u30() # target
881 u30() # exc_type
882 u30() # var_name
883 trait_count = u30()
884 for _c2 in range(trait_count):
885 parse_traits_info()
886
887 assert p + code_reader.tell() == len(code_tag)
888 assert len(methods) == len(method_idxs)
889
890 method_pyfunctions = {}
891
892 def extract_function(func_name):
893 if func_name in method_pyfunctions:
894 return method_pyfunctions[func_name]
895 if func_name not in methods:
896 raise ExtractorError(u'Cannot find function %r' % func_name)
897 m = methods[func_name]
898
899 def resfunc(args):
900 registers = ['(this)'] + list(args) + [None] * m.local_count
901 stack = []
902 coder = io.BytesIO(m.code)
903 while True:
904 opcode = struct.unpack('!B', coder.read(1))[0]
905 if opcode == 36: # pushbyte
906 v = struct.unpack('!B', coder.read(1))[0]
907 stack.append(v)
908 elif opcode == 44: # pushstring
909 idx = u30(coder)
910 stack.append(constant_strings[idx])
911 elif opcode == 48: # pushscope
912 # We don't implement the scope register, so we'll just
913 # ignore the popped value
914 stack.pop()
915 elif opcode == 70: # callproperty
916 index = u30(coder)
917 mname = multinames[index]
918 arg_count = u30(coder)
919 args = list(reversed(
920 [stack.pop() for _ in range(arg_count)]))
921 obj = stack.pop()
922 if mname == u'split':
923 assert len(args) == 1
924 assert isinstance(args[0], compat_str)
925 assert isinstance(obj, compat_str)
926 if args[0] == u'':
927 res = list(obj)
928 else:
929 res = obj.split(args[0])
930 stack.append(res)
931 elif mname == u'slice':
932 assert len(args) == 1
933 assert isinstance(args[0], int)
934 assert isinstance(obj, list)
935 res = obj[args[0]:]
936 stack.append(res)
937 elif mname == u'join':
938 assert len(args) == 1
939 assert isinstance(args[0], compat_str)
940 assert isinstance(obj, list)
941 res = args[0].join(obj)
942 stack.append(res)
943 elif mname in method_pyfunctions:
944 stack.append(method_pyfunctions[mname](args))
945 else:
946 raise NotImplementedError(
947 u'Unsupported property %r on %r'
948 % (mname, obj))
949 elif opcode == 72: # returnvalue
950 res = stack.pop()
951 return res
952 elif opcode == 79: # callpropvoid
953 index = u30(coder)
954 mname = multinames[index]
955 arg_count = u30(coder)
956 args = list(reversed(
957 [stack.pop() for _ in range(arg_count)]))
958 obj = stack.pop()
959 if mname == u'reverse':
960 assert isinstance(obj, list)
961 obj.reverse()
962 else:
963 raise NotImplementedError(
964 u'Unsupported (void) property %r on %r'
965 % (mname, obj))
966 elif opcode == 93: # findpropstrict
967 index = u30(coder)
968 mname = multinames[index]
969 res = extract_function(mname)
970 stack.append(res)
971 elif opcode == 97: # setproperty
972 index = u30(coder)
973 value = stack.pop()
974 idx = stack.pop()
975 obj = stack.pop()
976 assert isinstance(obj, list)
977 assert isinstance(idx, int)
978 obj[idx] = value
979 elif opcode == 98: # getlocal
980 index = u30(coder)
981 stack.append(registers[index])
982 elif opcode == 99: # setlocal
983 index = u30(coder)
984 value = stack.pop()
985 registers[index] = value
986 elif opcode == 102: # getproperty
987 index = u30(coder)
988 pname = multinames[index]
989 if pname == u'length':
990 obj = stack.pop()
991 assert isinstance(obj, list)
992 stack.append(len(obj))
993 else: # Assume attribute access
994 idx = stack.pop()
995 assert isinstance(idx, int)
996 obj = stack.pop()
997 assert isinstance(obj, list)
998 stack.append(obj[idx])
999 elif opcode == 128: # coerce
1000 u30(coder)
1001 elif opcode == 133: # coerce_s
1002 assert isinstance(stack[-1], (type(None), compat_str))
1003 elif opcode == 164: # modulo
1004 value2 = stack.pop()
1005 value1 = stack.pop()
1006 res = value1 % value2
1007 stack.append(res)
1008 elif opcode == 208: # getlocal_0
1009 stack.append(registers[0])
1010 elif opcode == 209: # getlocal_1
1011 stack.append(registers[1])
1012 elif opcode == 210: # getlocal_2
1013 stack.append(registers[2])
1014 elif opcode == 211: # getlocal_3
1015 stack.append(registers[3])
1016 elif opcode == 214: # setlocal_2
1017 registers[2] = stack.pop()
1018 elif opcode == 215: # setlocal_3
1019 registers[3] = stack.pop()
1020 else:
1021 raise NotImplementedError(
1022 u'Unsupported opcode %d' % opcode)
1023
1024 method_pyfunctions[func_name] = resfunc
1025 return resfunc
1026
1027 initial_function = extract_function(u'decipher')
1028 return lambda s: initial_function([s])
1029
1030 def _decrypt_signature(self, s, video_id, player_url, age_gate=False):
1031 """Turn the encrypted s field into a working signature"""
1032
1033 if player_url is not None:
1034 if player_url.startswith(u'//'):
1035 player_url = u'https:' + player_url
1036 try:
1037 player_id = (player_url, len(s))
1038 if player_id not in self._player_cache:
1039 func = self._extract_signature_function(
1040 video_id, player_url, len(s)
1041 )
1042 self._player_cache[player_id] = func
1043 func = self._player_cache[player_id]
1044 if self._downloader.params.get('youtube_print_sig_code'):
1045 self._print_sig_code(func, len(s))
1046 return func(s)
1047 except Exception:
1048 tb = traceback.format_exc()
1049 self._downloader.report_warning(
1050 u'Automatic signature extraction failed: ' + tb)
1051
1052 self._downloader.report_warning(
1053 u'Warning: Falling back to static signature algorithm')
1054
1055 return self._static_decrypt_signature(
1056 s, video_id, player_url, age_gate)
1057
1058 def _static_decrypt_signature(self, s, video_id, player_url, age_gate):
1059 if age_gate:
1060 # The videos with age protection use another player, so the
1061 # algorithms can be different.
1062 if len(s) == 86:
1063 return s[2:63] + s[82] + s[64:82] + s[63]
1064
1065 if len(s) == 93:
1066 return s[86:29:-1] + s[88] + s[28:5:-1]
1067 elif len(s) == 92:
1068 return s[25] + s[3:25] + s[0] + s[26:42] + s[79] + s[43:79] + s[91] + s[80:83]
1069 elif len(s) == 91:
1070 return s[84:27:-1] + s[86] + s[26:5:-1]
1071 elif len(s) == 90:
1072 return s[25] + s[3:25] + s[2] + s[26:40] + s[77] + s[41:77] + s[89] + s[78:81]
1073 elif len(s) == 89:
1074 return s[84:78:-1] + s[87] + s[77:60:-1] + s[0] + s[59:3:-1]
1075 elif len(s) == 88:
1076 return s[7:28] + s[87] + s[29:45] + s[55] + s[46:55] + s[2] + s[56:87] + s[28]
1077 elif len(s) == 87:
1078 return s[6:27] + s[4] + s[28:39] + s[27] + s[40:59] + s[2] + s[60:]
1079 elif len(s) == 86:
1080 return s[80:72:-1] + s[16] + s[71:39:-1] + s[72] + s[38:16:-1] + s[82] + s[15::-1]
1081 elif len(s) == 85:
1082 return s[3:11] + s[0] + s[12:55] + s[84] + s[56:84]
1083 elif len(s) == 84:
1084 return s[78:70:-1] + s[14] + s[69:37:-1] + s[70] + s[36:14:-1] + s[80] + s[:14][::-1]
1085 elif len(s) == 83:
1086 return s[80:63:-1] + s[0] + s[62:0:-1] + s[63]
1087 elif len(s) == 82:
1088 return s[80:37:-1] + s[7] + s[36:7:-1] + s[0] + s[6:0:-1] + s[37]
1089 elif len(s) == 81:
1090 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]
1091 elif len(s) == 80:
1092 return s[1:19] + s[0] + s[20:68] + s[19] + s[69:80]
1093 elif len(s) == 79:
1094 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]
1095
1096 else:
1097 raise ExtractorError(u'Unable to decrypt signature, key length %d not supported; retrying might work' % (len(s)))
1098
1099 def _get_available_subtitles(self, video_id, webpage):
1100 try:
1101 sub_list = self._download_webpage(
1102 'http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id,
1103 video_id, note=False)
1104 except ExtractorError as err:
1105 self._downloader.report_warning(u'unable to download video subtitles: %s' % compat_str(err))
1106 return {}
1107 lang_list = re.findall(r'name="([^"]*)"[^>]+lang_code="([\w\-]+)"', sub_list)
1108
1109 sub_lang_list = {}
1110 for l in lang_list:
1111 lang = l[1]
1112 params = compat_urllib_parse.urlencode({
1113 'lang': lang,
1114 'v': video_id,
1115 'fmt': self._downloader.params.get('subtitlesformat', 'srt'),
1116 'name': l[0].encode('utf-8'),
1117 })
1118 url = u'http://www.youtube.com/api/timedtext?' + params
1119 sub_lang_list[lang] = url
1120 if not sub_lang_list:
1121 self._downloader.report_warning(u'video doesn\'t have subtitles')
1122 return {}
1123 return sub_lang_list
1124
1125 def _get_available_automatic_caption(self, video_id, webpage):
1126 """We need the webpage for getting the captions url, pass it as an
1127 argument to speed up the process."""
1128 sub_format = self._downloader.params.get('subtitlesformat', 'srt')
1129 self.to_screen(u'%s: Looking for automatic captions' % video_id)
1130 mobj = re.search(r';ytplayer.config = ({.*?});', webpage)
1131 err_msg = u'Couldn\'t find automatic captions for %s' % video_id
1132 if mobj is None:
1133 self._downloader.report_warning(err_msg)
1134 return {}
1135 player_config = json.loads(mobj.group(1))
1136 try:
1137 args = player_config[u'args']
1138 caption_url = args[u'ttsurl']
1139 timestamp = args[u'timestamp']
1140 # We get the available subtitles
1141 list_params = compat_urllib_parse.urlencode({
1142 'type': 'list',
1143 'tlangs': 1,
1144 'asrs': 1,
1145 })
1146 list_url = caption_url + '&' + list_params
1147 list_page = self._download_webpage(list_url, video_id)
1148 caption_list = xml.etree.ElementTree.fromstring(list_page.encode('utf-8'))
1149 original_lang_node = caption_list.find('track')
1150 if original_lang_node is None or original_lang_node.attrib.get('kind') != 'asr' :
1151 self._downloader.report_warning(u'Video doesn\'t have automatic captions')
1152 return {}
1153 original_lang = original_lang_node.attrib['lang_code']
1154
1155 sub_lang_list = {}
1156 for lang_node in caption_list.findall('target'):
1157 sub_lang = lang_node.attrib['lang_code']
1158 params = compat_urllib_parse.urlencode({
1159 'lang': original_lang,
1160 'tlang': sub_lang,
1161 'fmt': sub_format,
1162 'ts': timestamp,
1163 'kind': 'asr',
1164 })
1165 sub_lang_list[sub_lang] = caption_url + '&' + params
1166 return sub_lang_list
1167 # An extractor error can be raise by the download process if there are
1168 # no automatic captions but there are subtitles
1169 except (KeyError, ExtractorError):
1170 self._downloader.report_warning(err_msg)
1171 return {}
1172
1173 def _print_formats(self, formats):
1174 print('Available formats:')
1175 for x in formats:
1176 print('%s\t:\t%s\t[%s]%s' %(x, self._video_extensions.get(x, 'flv'),
1177 self._video_dimensions.get(x, '???'),
1178 ' ('+self._special_itags[x]+')' if x in self._special_itags else ''))
1179
1180 def _extract_id(self, url):
1181 mobj = re.match(self._VALID_URL, url, re.VERBOSE)
1182 if mobj is None:
1183 raise ExtractorError(u'Invalid URL: %s' % url)
1184 video_id = mobj.group(2)
1185 return video_id
1186
1187 def _get_video_url_list(self, url_map):
1188 """
1189 Transform a dictionary in the format {itag:url} to a list of (itag, url)
1190 with the requested formats.
1191 """
1192 req_format = self._downloader.params.get('format', None)
1193 format_limit = self._downloader.params.get('format_limit', None)
1194 available_formats = self._available_formats_prefer_free if self._downloader.params.get('prefer_free_formats', False) else self._available_formats
1195 if format_limit is not None and format_limit in available_formats:
1196 format_list = available_formats[available_formats.index(format_limit):]
1197 else:
1198 format_list = available_formats
1199 existing_formats = [x for x in format_list if x in url_map]
1200 if len(existing_formats) == 0:
1201 raise ExtractorError(u'no known formats available for video')
1202 if self._downloader.params.get('listformats', None):
1203 self._print_formats(existing_formats)
1204 return
1205 if req_format is None or req_format == 'best':
1206 video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
1207 elif req_format == 'worst':
1208 video_url_list = [(existing_formats[-1], url_map[existing_formats[-1]])] # worst quality
1209 elif req_format in ('-1', 'all'):
1210 video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
1211 else:
1212 # Specific formats. We pick the first in a slash-delimeted sequence.
1213 # Format can be specified as itag or 'mp4' or 'flv' etc. We pick the highest quality
1214 # available in the specified format. For example,
1215 # if '1/2/3/4' is requested and '2' and '4' are available, we pick '2'.
1216 # if '1/mp4/3/4' is requested and '1' and '5' (is a mp4) are available, we pick '1'.
1217 # if '1/mp4/3/4' is requested and '4' and '5' (is a mp4) are available, we pick '5'.
1218 req_formats = req_format.split('/')
1219 video_url_list = None
1220 for rf in req_formats:
1221 if rf in url_map:
1222 video_url_list = [(rf, url_map[rf])]
1223 break
1224 if rf in self._video_formats_map:
1225 for srf in self._video_formats_map[rf]:
1226 if srf in url_map:
1227 video_url_list = [(srf, url_map[srf])]
1228 break
1229 else:
1230 continue
1231 break
1232 if video_url_list is None:
1233 raise ExtractorError(u'requested format not available')
1234 return video_url_list
1235
1236 def _extract_from_m3u8(self, manifest_url, video_id):
1237 url_map = {}
1238 def _get_urls(_manifest):
1239 lines = _manifest.split('\n')
1240 urls = filter(lambda l: l and not l.startswith('#'),
1241 lines)
1242 return urls
1243 manifest = self._download_webpage(manifest_url, video_id, u'Downloading formats manifest')
1244 formats_urls = _get_urls(manifest)
1245 for format_url in formats_urls:
1246 itag = self._search_regex(r'itag/(\d+?)/', format_url, 'itag')
1247 url_map[itag] = format_url
1248 return url_map
1249
1250 def _extract_annotations(self, video_id):
1251 url = 'https://www.youtube.com/annotations_invideo?features=1&legacy=1&video_id=%s' % video_id
1252 return self._download_webpage(url, video_id, note=u'Searching for annotations.', errnote=u'Unable to download video annotations.')
1253
1254 def _real_extract(self, url):
1255 # Extract original video URL from URL with redirection, like age verification, using next_url parameter
1256 mobj = re.search(self._NEXT_URL_RE, url)
1257 if mobj:
1258 url = 'https://www.youtube.com/' + compat_urllib_parse.unquote(mobj.group(1)).lstrip('/')
1259 video_id = self._extract_id(url)
1260
1261 # Get video webpage
1262 self.report_video_webpage_download(video_id)
1263 url = 'https://www.youtube.com/watch?v=%s&gl=US&hl=en&has_verified=1' % video_id
1264 request = compat_urllib_request.Request(url)
1265 try:
1266 video_webpage_bytes = compat_urllib_request.urlopen(request).read()
1267 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
1268 raise ExtractorError(u'Unable to download video webpage: %s' % compat_str(err))
1269
1270 video_webpage = video_webpage_bytes.decode('utf-8', 'ignore')
1271
1272 # Attempt to extract SWF player URL
1273 mobj = re.search(r'swfConfig.*?"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
1274 if mobj is not None:
1275 player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
1276 else:
1277 player_url = None
1278
1279 # Get video info
1280 self.report_video_info_webpage_download(video_id)
1281 if re.search(r'player-age-gate-content">', video_webpage) is not None:
1282 self.report_age_confirmation()
1283 age_gate = True
1284 # We simulate the access to the video from www.youtube.com/v/{video_id}
1285 # this can be viewed without login into Youtube
1286 data = compat_urllib_parse.urlencode({'video_id': video_id,
1287 'el': 'player_embedded',
1288 'gl': 'US',
1289 'hl': 'en',
1290 'eurl': 'https://youtube.googleapis.com/v/' + video_id,
1291 'asv': 3,
1292 'sts':'1588',
1293 })
1294 video_info_url = 'https://www.youtube.com/get_video_info?' + data
1295 video_info_webpage = self._download_webpage(video_info_url, video_id,
1296 note=False,
1297 errnote='unable to download video info webpage')
1298 video_info = compat_parse_qs(video_info_webpage)
1299 else:
1300 age_gate = False
1301 for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
1302 video_info_url = ('https://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
1303 % (video_id, el_type))
1304 video_info_webpage = self._download_webpage(video_info_url, video_id,
1305 note=False,
1306 errnote='unable to download video info webpage')
1307 video_info = compat_parse_qs(video_info_webpage)
1308 if 'token' in video_info:
1309 break
1310 if 'token' not in video_info:
1311 if 'reason' in video_info:
1312 raise ExtractorError(u'YouTube said: %s' % video_info['reason'][0], expected=True)
1313 else:
1314 raise ExtractorError(u'"token" parameter not in video info for unknown reason')
1315
1316 if 'view_count' in video_info:
1317 view_count = int(video_info['view_count'][0])
1318 else:
1319 view_count = None
1320
1321 # Check for "rental" videos
1322 if 'ypc_video_rental_bar_text' in video_info and 'author' not in video_info:
1323 raise ExtractorError(u'"rental" videos not supported')
1324
1325 # Start extracting information
1326 self.report_information_extraction(video_id)
1327
1328 # uploader
1329 if 'author' not in video_info:
1330 raise ExtractorError(u'Unable to extract uploader name')
1331 video_uploader = compat_urllib_parse.unquote_plus(video_info['author'][0])
1332
1333 # uploader_id
1334 video_uploader_id = None
1335 mobj = re.search(r'<link itemprop="url" href="http://www.youtube.com/(?:user|channel)/([^"]+)">', video_webpage)
1336 if mobj is not None:
1337 video_uploader_id = mobj.group(1)
1338 else:
1339 self._downloader.report_warning(u'unable to extract uploader nickname')
1340
1341 # title
1342 if 'title' in video_info:
1343 video_title = compat_urllib_parse.unquote_plus(video_info['title'][0])
1344 else:
1345 self._downloader.report_warning(u'Unable to extract video title')
1346 video_title = u'_'
1347
1348 # thumbnail image
1349 # We try first to get a high quality image:
1350 m_thumb = re.search(r'<span itemprop="thumbnail".*?href="(.*?)">',
1351 video_webpage, re.DOTALL)
1352 if m_thumb is not None:
1353 video_thumbnail = m_thumb.group(1)
1354 elif 'thumbnail_url' not in video_info:
1355 self._downloader.report_warning(u'unable to extract video thumbnail')
1356 video_thumbnail = None
1357 else: # don't panic if we can't find it
1358 video_thumbnail = compat_urllib_parse.unquote_plus(video_info['thumbnail_url'][0])
1359
1360 # upload date
1361 upload_date = None
1362 mobj = re.search(r'id="eow-date.*?>(.*?)</span>', video_webpage, re.DOTALL)
1363 if mobj is not None:
1364 upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
1365 upload_date = unified_strdate(upload_date)
1366
1367 # description
1368 video_description = get_element_by_id("eow-description", video_webpage)
1369 if video_description:
1370 video_description = clean_html(video_description)
1371 else:
1372 fd_mobj = re.search(r'<meta name="description" content="([^"]+)"', video_webpage)
1373 if fd_mobj:
1374 video_description = unescapeHTML(fd_mobj.group(1))
1375 else:
1376 video_description = u''
1377
1378 # subtitles
1379 video_subtitles = self.extract_subtitles(video_id, video_webpage)
1380
1381 if self._downloader.params.get('listsubtitles', False):
1382 self._list_available_subtitles(video_id, video_webpage)
1383 return
1384
1385 if 'length_seconds' not in video_info:
1386 self._downloader.report_warning(u'unable to extract video duration')
1387 video_duration = ''
1388 else:
1389 video_duration = compat_urllib_parse.unquote_plus(video_info['length_seconds'][0])
1390
1391 # annotations
1392 video_annotations = None
1393 if self._downloader.params.get('writeannotations', False):
1394 video_annotations = self._extract_annotations(video_id)
1395
1396 # Decide which formats to download
1397
1398 try:
1399 mobj = re.search(r';ytplayer.config = ({.*?});', video_webpage)
1400 if not mobj:
1401 raise ValueError('Could not find vevo ID')
1402 info = json.loads(mobj.group(1))
1403 args = info['args']
1404 # Easy way to know if the 's' value is in url_encoded_fmt_stream_map
1405 # this signatures are encrypted
1406 if 'url_encoded_fmt_stream_map' not in args:
1407 raise ValueError(u'No stream_map present') # caught below
1408 re_signature = re.compile(r'[&,]s=')
1409 m_s = re_signature.search(args['url_encoded_fmt_stream_map'])
1410 if m_s is not None:
1411 self.to_screen(u'%s: Encrypted signatures detected.' % video_id)
1412 video_info['url_encoded_fmt_stream_map'] = [args['url_encoded_fmt_stream_map']]
1413 m_s = re_signature.search(args.get('adaptive_fmts', u''))
1414 if m_s is not None:
1415 if 'adaptive_fmts' in video_info:
1416 video_info['adaptive_fmts'][0] += ',' + args['adaptive_fmts']
1417 else:
1418 video_info['adaptive_fmts'] = [args['adaptive_fmts']]
1419 except ValueError:
1420 pass
1421
1422 if 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
1423 self.report_rtmp_download()
1424 video_url_list = [(None, video_info['conn'][0])]
1425 elif len(video_info.get('url_encoded_fmt_stream_map', [])) >= 1 or len(video_info.get('adaptive_fmts', [])) >= 1:
1426 encoded_url_map = video_info.get('url_encoded_fmt_stream_map', [''])[0] + ',' + video_info.get('adaptive_fmts',[''])[0]
1427 if 'rtmpe%3Dyes' in encoded_url_map:
1428 raise ExtractorError('rtmpe downloads are not supported, see https://github.com/rg3/youtube-dl/issues/343 for more information.', expected=True)
1429 url_map = {}
1430 for url_data_str in encoded_url_map.split(','):
1431 url_data = compat_parse_qs(url_data_str)
1432 if 'itag' in url_data and 'url' in url_data:
1433 url = url_data['url'][0]
1434 if 'sig' in url_data:
1435 url += '&signature=' + url_data['sig'][0]
1436 elif 's' in url_data:
1437 encrypted_sig = url_data['s'][0]
1438 if self._downloader.params.get('verbose'):
1439 if age_gate:
1440 if player_url is None:
1441 player_version = 'unknown'
1442 else:
1443 player_version = self._search_regex(
1444 r'-(.+)\.swf$', player_url,
1445 u'flash player', fatal=False)
1446 player_desc = 'flash player %s' % player_version
1447 else:
1448 player_version = self._search_regex(
1449 r'html5player-(.+?)\.js', video_webpage,
1450 'html5 player', fatal=False)
1451 player_desc = u'html5 player %s' % player_version
1452
1453 parts_sizes = u'.'.join(compat_str(len(part)) for part in encrypted_sig.split('.'))
1454 self.to_screen(u'encrypted signature length %d (%s), itag %s, %s' %
1455 (len(encrypted_sig), parts_sizes, url_data['itag'][0], player_desc))
1456
1457 if not age_gate:
1458 jsplayer_url_json = self._search_regex(
1459 r'"assets":.+?"js":\s*("[^"]+")',
1460 video_webpage, u'JS player URL')
1461 player_url = json.loads(jsplayer_url_json)
1462
1463 signature = self._decrypt_signature(
1464 encrypted_sig, video_id, player_url, age_gate)
1465 url += '&signature=' + signature
1466 if 'ratebypass' not in url:
1467 url += '&ratebypass=yes'
1468 url_map[url_data['itag'][0]] = url
1469 video_url_list = self._get_video_url_list(url_map)
1470 if not video_url_list:
1471 return
1472 elif video_info.get('hlsvp'):
1473 manifest_url = video_info['hlsvp'][0]
1474 url_map = self._extract_from_m3u8(manifest_url, video_id)
1475 video_url_list = self._get_video_url_list(url_map)
1476 if not video_url_list:
1477 return
1478
1479 else:
1480 raise ExtractorError(u'no conn, hlsvp or url_encoded_fmt_stream_map information found in video info')
1481
1482 results = []
1483 for itag, video_real_url in video_url_list:
1484 # Extension
1485 video_extension = self._video_extensions.get(itag, 'flv')
1486
1487 video_format = '{0} - {1}{2}'.format(itag if itag else video_extension,
1488 self._video_dimensions.get(itag, '???'),
1489 ' ('+self._special_itags[itag]+')' if itag in self._special_itags else '')
1490
1491 results.append({
1492 'id': video_id,
1493 'url': video_real_url,
1494 'uploader': video_uploader,
1495 'uploader_id': video_uploader_id,
1496 'upload_date': upload_date,
1497 'title': video_title,
1498 'ext': video_extension,
1499 'format': video_format,
1500 'format_id': itag,
1501 'thumbnail': video_thumbnail,
1502 'description': video_description,
1503 'player_url': player_url,
1504 'subtitles': video_subtitles,
1505 'duration': video_duration,
1506 'age_limit': 18 if age_gate else 0,
1507 'annotations': video_annotations,
1508 'webpage_url': 'https://www.youtube.com/watch?v=%s' % video_id,
1509 'view_count': view_count,
1510 })
1511 return results
1512
1513 class YoutubePlaylistIE(InfoExtractor):
1514 IE_DESC = u'YouTube.com playlists'
1515 _VALID_URL = r"""(?:
1516 (?:https?://)?
1517 (?:\w+\.)?
1518 youtube\.com/
1519 (?:
1520 (?:course|view_play_list|my_playlists|artist|playlist|watch)
1521 \? (?:.*?&)*? (?:p|a|list)=
1522 | p/
1523 )
1524 ((?:PL|EC|UU|FL)?[0-9A-Za-z-_]{10,})
1525 .*
1526 |
1527 ((?:PL|EC|UU|FL)[0-9A-Za-z-_]{10,})
1528 )"""
1529 _TEMPLATE_URL = 'https://gdata.youtube.com/feeds/api/playlists/%s?max-results=%i&start-index=%i&v=2&alt=json&safeSearch=none'
1530 _MAX_RESULTS = 50
1531 IE_NAME = u'youtube:playlist'
1532
1533 @classmethod
1534 def suitable(cls, url):
1535 """Receives a URL and returns True if suitable for this IE."""
1536 return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
1537
1538 def _real_extract(self, url):
1539 # Extract playlist id
1540 mobj = re.match(self._VALID_URL, url, re.VERBOSE)
1541 if mobj is None:
1542 raise ExtractorError(u'Invalid URL: %s' % url)
1543 playlist_id = mobj.group(1) or mobj.group(2)
1544
1545 # Check if it's a video-specific URL
1546 query_dict = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
1547 if 'v' in query_dict:
1548 video_id = query_dict['v'][0]
1549 if self._downloader.params.get('noplaylist'):
1550 self.to_screen(u'Downloading just video %s because of --no-playlist' % video_id)
1551 return self.url_result('https://www.youtube.com/watch?v=' + video_id, 'Youtube')
1552 else:
1553 self.to_screen(u'Downloading playlist PL%s - add --no-playlist to just download video %s' % (playlist_id, video_id))
1554
1555 # Download playlist videos from API
1556 videos = []
1557
1558 for page_num in itertools.count(1):
1559 start_index = self._MAX_RESULTS * (page_num - 1) + 1
1560 if start_index >= 1000:
1561 self._downloader.report_warning(u'Max number of results reached')
1562 break
1563 url = self._TEMPLATE_URL % (playlist_id, self._MAX_RESULTS, start_index)
1564 page = self._download_webpage(url, playlist_id, u'Downloading page #%s' % page_num)
1565
1566 try:
1567 response = json.loads(page)
1568 except ValueError as err:
1569 raise ExtractorError(u'Invalid JSON in API response: ' + compat_str(err))
1570
1571 if 'feed' not in response:
1572 raise ExtractorError(u'Got a malformed response from YouTube API')
1573 playlist_title = response['feed']['title']['$t']
1574 if 'entry' not in response['feed']:
1575 # Number of videos is a multiple of self._MAX_RESULTS
1576 break
1577
1578 for entry in response['feed']['entry']:
1579 index = entry['yt$position']['$t']
1580 if 'media$group' in entry and 'yt$videoid' in entry['media$group']:
1581 videos.append((
1582 index,
1583 'https://www.youtube.com/watch?v=' + entry['media$group']['yt$videoid']['$t']
1584 ))
1585
1586 videos = [v[1] for v in sorted(videos)]
1587
1588 url_results = [self.url_result(vurl, 'Youtube') for vurl in videos]
1589 return [self.playlist_result(url_results, playlist_id, playlist_title)]
1590
1591
1592 class YoutubeChannelIE(InfoExtractor):
1593 IE_DESC = u'YouTube.com channels'
1594 _VALID_URL = r"^(?:https?://)?(?:youtu\.be|(?:\w+\.)?youtube(?:-nocookie)?\.com)/channel/([0-9A-Za-z_-]+)"
1595 _MORE_PAGES_INDICATOR = 'yt-uix-load-more'
1596 _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'
1597 IE_NAME = u'youtube:channel'
1598
1599 def extract_videos_from_page(self, page):
1600 ids_in_page = []
1601 for mobj in re.finditer(r'href="/watch\?v=([0-9A-Za-z_-]+)&?', page):
1602 if mobj.group(1) not in ids_in_page:
1603 ids_in_page.append(mobj.group(1))
1604 return ids_in_page
1605
1606 def _real_extract(self, url):
1607 # Extract channel id
1608 mobj = re.match(self._VALID_URL, url)
1609 if mobj is None:
1610 raise ExtractorError(u'Invalid URL: %s' % url)
1611
1612 # Download channel page
1613 channel_id = mobj.group(1)
1614 video_ids = []
1615 url = 'https://www.youtube.com/channel/%s/videos' % channel_id
1616 channel_page = self._download_webpage(url, channel_id)
1617 if re.search(r'channel-header-autogenerated-label', channel_page) is not None:
1618 autogenerated = True
1619 else:
1620 autogenerated = False
1621
1622 if autogenerated:
1623 # The videos are contained in a single page
1624 # the ajax pages can't be used, they are empty
1625 video_ids = self.extract_videos_from_page(channel_page)
1626 else:
1627 # Download all channel pages using the json-based channel_ajax query
1628 for pagenum in itertools.count(1):
1629 url = self._MORE_PAGES_URL % (pagenum, channel_id)
1630 page = self._download_webpage(url, channel_id,
1631 u'Downloading page #%s' % pagenum)
1632
1633 page = json.loads(page)
1634
1635 ids_in_page = self.extract_videos_from_page(page['content_html'])
1636 video_ids.extend(ids_in_page)
1637
1638 if self._MORE_PAGES_INDICATOR not in page['load_more_widget_html']:
1639 break
1640
1641 self._downloader.to_screen(u'[youtube] Channel %s: Found %i videos' % (channel_id, len(video_ids)))
1642
1643 urls = ['http://www.youtube.com/watch?v=%s' % id for id in video_ids]
1644 url_entries = [self.url_result(eurl, 'Youtube') for eurl in urls]
1645 return [self.playlist_result(url_entries, channel_id)]
1646
1647
1648 class YoutubeUserIE(InfoExtractor):
1649 IE_DESC = u'YouTube.com user videos (URL or "ytuser" keyword)'
1650 _VALID_URL = r'(?:(?:(?:https?://)?(?:\w+\.)?youtube\.com/(?:user/)?(?!(?:attribution_link|watch)(?:$|[^a-z_A-Z0-9-])))|ytuser:)(?!feed/)([A-Za-z0-9_-]+)'
1651 _TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
1652 _GDATA_PAGE_SIZE = 50
1653 _GDATA_URL = 'http://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d&alt=json'
1654 IE_NAME = u'youtube:user'
1655
1656 @classmethod
1657 def suitable(cls, url):
1658 # Don't return True if the url can be extracted with other youtube
1659 # extractor, the regex would is too permissive and it would match.
1660 other_ies = iter(klass for (name, klass) in globals().items() if name.endswith('IE') and klass is not cls)
1661 if any(ie.suitable(url) for ie in other_ies): return False
1662 else: return super(YoutubeUserIE, cls).suitable(url)
1663
1664 def _real_extract(self, url):
1665 # Extract username
1666 mobj = re.match(self._VALID_URL, url)
1667 if mobj is None:
1668 raise ExtractorError(u'Invalid URL: %s' % url)
1669
1670 username = mobj.group(1)
1671
1672 # Download video ids using YouTube Data API. Result size per
1673 # query is limited (currently to 50 videos) so we need to query
1674 # page by page until there are no video ids - it means we got
1675 # all of them.
1676
1677 video_ids = []
1678
1679 for pagenum in itertools.count(0):
1680 start_index = pagenum * self._GDATA_PAGE_SIZE + 1
1681
1682 gdata_url = self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index)
1683 page = self._download_webpage(gdata_url, username,
1684 u'Downloading video ids from %d to %d' % (start_index, start_index + self._GDATA_PAGE_SIZE))
1685
1686 try:
1687 response = json.loads(page)
1688 except ValueError as err:
1689 raise ExtractorError(u'Invalid JSON in API response: ' + compat_str(err))
1690 if 'entry' not in response['feed']:
1691 # Number of videos is a multiple of self._MAX_RESULTS
1692 break
1693
1694 # Extract video identifiers
1695 ids_in_page = []
1696 for entry in response['feed']['entry']:
1697 ids_in_page.append(entry['id']['$t'].split('/')[-1])
1698 video_ids.extend(ids_in_page)
1699
1700 # A little optimization - if current page is not
1701 # "full", ie. does not contain PAGE_SIZE video ids then
1702 # we can assume that this page is the last one - there
1703 # are no more ids on further pages - no need to query
1704 # again.
1705
1706 if len(ids_in_page) < self._GDATA_PAGE_SIZE:
1707 break
1708
1709 urls = ['http://www.youtube.com/watch?v=%s' % video_id for video_id in video_ids]
1710 url_results = [self.url_result(rurl, 'Youtube') for rurl in urls]
1711 return [self.playlist_result(url_results, playlist_title = username)]
1712
1713 class YoutubeSearchIE(SearchInfoExtractor):
1714 IE_DESC = u'YouTube.com searches'
1715 _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc'
1716 _MAX_RESULTS = 1000
1717 IE_NAME = u'youtube:search'
1718 _SEARCH_KEY = 'ytsearch'
1719
1720 def report_download_page(self, query, pagenum):
1721 """Report attempt to download search page with given number."""
1722 self._downloader.to_screen(u'[youtube] query "%s": Downloading page %s' % (query, pagenum))
1723
1724 def _get_n_results(self, query, n):
1725 """Get a specified number of results for a query"""
1726
1727 video_ids = []
1728 pagenum = 0
1729 limit = n
1730
1731 while (50 * pagenum) < limit:
1732 self.report_download_page(query, pagenum+1)
1733 result_url = self._API_URL % (compat_urllib_parse.quote_plus(query), (50*pagenum)+1)
1734 request = compat_urllib_request.Request(result_url)
1735 try:
1736 data = compat_urllib_request.urlopen(request).read().decode('utf-8')
1737 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
1738 raise ExtractorError(u'Unable to download API page: %s' % compat_str(err))
1739 api_response = json.loads(data)['data']
1740
1741 if not 'items' in api_response:
1742 raise ExtractorError(u'[youtube] No video results')
1743
1744 new_ids = list(video['id'] for video in api_response['items'])
1745 video_ids += new_ids
1746
1747 limit = min(n, api_response['totalItems'])
1748 pagenum += 1
1749
1750 if len(video_ids) > n:
1751 video_ids = video_ids[:n]
1752 videos = [self.url_result('http://www.youtube.com/watch?v=%s' % id, 'Youtube') for id in video_ids]
1753 return self.playlist_result(videos, query)
1754
1755 class YoutubeSearchDateIE(YoutubeSearchIE):
1756 _API_URL = 'https://gdata.youtube.com/feeds/api/videos?q=%s&start-index=%i&max-results=50&v=2&alt=jsonc&orderby=published'
1757 _SEARCH_KEY = 'ytsearchdate'
1758 IE_DESC = u'YouTube.com searches, newest videos first'
1759
1760 class YoutubeShowIE(InfoExtractor):
1761 IE_DESC = u'YouTube.com (multi-season) shows'
1762 _VALID_URL = r'https?://www\.youtube\.com/show/(.*)'
1763 IE_NAME = u'youtube:show'
1764
1765 def _real_extract(self, url):
1766 mobj = re.match(self._VALID_URL, url)
1767 show_name = mobj.group(1)
1768 webpage = self._download_webpage(url, show_name, u'Downloading show webpage')
1769 # There's one playlist for each season of the show
1770 m_seasons = list(re.finditer(r'href="(/playlist\?list=.*?)"', webpage))
1771 self.to_screen(u'%s: Found %s seasons' % (show_name, len(m_seasons)))
1772 return [self.url_result('https://www.youtube.com' + season.group(1), 'YoutubePlaylist') for season in m_seasons]
1773
1774
1775 class YoutubeFeedsInfoExtractor(YoutubeBaseInfoExtractor):
1776 """
1777 Base class for extractors that fetch info from
1778 http://www.youtube.com/feed_ajax
1779 Subclasses must define the _FEED_NAME and _PLAYLIST_TITLE properties.
1780 """
1781 _LOGIN_REQUIRED = True
1782 _PAGING_STEP = 30
1783 # use action_load_personal_feed instead of action_load_system_feed
1784 _PERSONAL_FEED = False
1785
1786 @property
1787 def _FEED_TEMPLATE(self):
1788 action = 'action_load_system_feed'
1789 if self._PERSONAL_FEED:
1790 action = 'action_load_personal_feed'
1791 return 'http://www.youtube.com/feed_ajax?%s=1&feed_name=%s&paging=%%s' % (action, self._FEED_NAME)
1792
1793 @property
1794 def IE_NAME(self):
1795 return u'youtube:%s' % self._FEED_NAME
1796
1797 def _real_initialize(self):
1798 self._login()
1799
1800 def _real_extract(self, url):
1801 feed_entries = []
1802 # The step argument is available only in 2.7 or higher
1803 for i in itertools.count(0):
1804 paging = i*self._PAGING_STEP
1805 info = self._download_webpage(self._FEED_TEMPLATE % paging,
1806 u'%s feed' % self._FEED_NAME,
1807 u'Downloading page %s' % i)
1808 info = json.loads(info)
1809 feed_html = info['feed_html']
1810 m_ids = re.finditer(r'"/watch\?v=(.*?)["&]', feed_html)
1811 ids = orderedSet(m.group(1) for m in m_ids)
1812 feed_entries.extend(self.url_result(id, 'Youtube') for id in ids)
1813 if info['paging'] is None:
1814 break
1815 return self.playlist_result(feed_entries, playlist_title=self._PLAYLIST_TITLE)
1816
1817 class YoutubeSubscriptionsIE(YoutubeFeedsInfoExtractor):
1818 IE_DESC = u'YouTube.com subscriptions feed, "ytsubs" keyword(requires authentication)'
1819 _VALID_URL = r'https?://www\.youtube\.com/feed/subscriptions|:ytsubs(?:criptions)?'
1820 _FEED_NAME = 'subscriptions'
1821 _PLAYLIST_TITLE = u'Youtube Subscriptions'
1822
1823 class YoutubeRecommendedIE(YoutubeFeedsInfoExtractor):
1824 IE_DESC = u'YouTube.com recommended videos, "ytrec" keyword (requires authentication)'
1825 _VALID_URL = r'https?://www\.youtube\.com/feed/recommended|:ytrec(?:ommended)?'
1826 _FEED_NAME = 'recommended'
1827 _PLAYLIST_TITLE = u'Youtube Recommended videos'
1828
1829 class YoutubeWatchLaterIE(YoutubeFeedsInfoExtractor):
1830 IE_DESC = u'Youtube watch later list, "ytwatchlater" keyword (requires authentication)'
1831 _VALID_URL = r'https?://www\.youtube\.com/feed/watch_later|:ytwatchlater'
1832 _FEED_NAME = 'watch_later'
1833 _PLAYLIST_TITLE = u'Youtube Watch Later'
1834 _PAGING_STEP = 100
1835 _PERSONAL_FEED = True
1836
1837 class YoutubeFavouritesIE(YoutubeBaseInfoExtractor):
1838 IE_NAME = u'youtube:favorites'
1839 IE_DESC = u'YouTube.com favourite videos, "ytfav" keyword (requires authentication)'
1840 _VALID_URL = r'https?://www\.youtube\.com/my_favorites|:ytfav(?:ou?rites)?'
1841 _LOGIN_REQUIRED = True
1842
1843 def _real_extract(self, url):
1844 webpage = self._download_webpage('https://www.youtube.com/my_favorites', 'Youtube Favourites videos')
1845 playlist_id = self._search_regex(r'list=(.+?)["&]', webpage, u'favourites playlist id')
1846 return self.url_result(playlist_id, 'YoutubePlaylist')
1847
1848
1849 class YoutubeTruncatedURLIE(InfoExtractor):
1850 IE_NAME = 'youtube:truncated_url'
1851 IE_DESC = False # Do not list
1852 _VALID_URL = r'(?:https?://)?[^/]+/watch\?feature=[a-z_]+$'
1853
1854 def _real_extract(self, url):
1855 raise ExtractorError(
1856 u'Did you forget to quote the URL? Remember that & is a meta '
1857 u'character in most shells, so you want to put the URL in quotes, '
1858 u'like youtube-dl '
1859 u'\'http://www.youtube.com/watch?feature=foo&v=BaW_jenozKc\''
1860 u' (or simply youtube-dl BaW_jenozKc ).',
1861 expected=True)
fork of https://github.com/yt-dlp/yt-dlp/