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