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Viewing changes to external/youtube-dl/youtube_dl/extractor/crunchyroll.py

  • Committer: Facundo Batista
  • Date: 2015-12-27 11:27:15 UTC
  • mto: This revision was merged to the branch mainline in revision 274.
  • Revision ID: facundo@taniquetil.com.ar-20151227112715-ztuasdhqm26hycug
Able to download TEDx.

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# encoding: utf-8
 
2
from __future__ import unicode_literals
 
3
 
 
4
import re
 
5
import json
 
6
import base64
 
7
import zlib
 
8
 
 
9
from hashlib import sha1
 
10
from math import pow, sqrt, floor
 
11
from .common import InfoExtractor
 
12
from ..compat import (
 
13
    compat_etree_fromstring,
 
14
    compat_urllib_parse,
 
15
    compat_urllib_parse_unquote,
 
16
    compat_urllib_request,
 
17
    compat_urlparse,
 
18
)
 
19
from ..utils import (
 
20
    ExtractorError,
 
21
    bytes_to_intlist,
 
22
    intlist_to_bytes,
 
23
    int_or_none,
 
24
    lowercase_escape,
 
25
    remove_end,
 
26
    sanitized_Request,
 
27
    unified_strdate,
 
28
    urlencode_postdata,
 
29
    xpath_text,
 
30
)
 
31
from ..aes import (
 
32
    aes_cbc_decrypt,
 
33
)
 
34
 
 
35
 
 
36
class CrunchyrollBaseIE(InfoExtractor):
 
37
    _NETRC_MACHINE = 'crunchyroll'
 
38
 
 
39
    def _login(self):
 
40
        (username, password) = self._get_login_info()
 
41
        if username is None:
 
42
            return
 
43
        self.report_login()
 
44
        login_url = 'https://www.crunchyroll.com/?a=formhandler'
 
45
        data = urlencode_postdata({
 
46
            'formname': 'RpcApiUser_Login',
 
47
            'name': username,
 
48
            'password': password,
 
49
        })
 
50
        login_request = sanitized_Request(login_url, data)
 
51
        login_request.add_header('Content-Type', 'application/x-www-form-urlencoded')
 
52
        self._download_webpage(login_request, None, False, 'Wrong login info')
 
53
 
 
54
    def _real_initialize(self):
 
55
        self._login()
 
56
 
 
57
    def _download_webpage(self, url_or_request, video_id, note=None, errnote=None, fatal=True, tries=1, timeout=5, encoding=None):
 
58
        request = (url_or_request if isinstance(url_or_request, compat_urllib_request.Request)
 
59
                   else sanitized_Request(url_or_request))
 
60
        # Accept-Language must be set explicitly to accept any language to avoid issues
 
61
        # similar to https://github.com/rg3/youtube-dl/issues/6797.
 
62
        # Along with IP address Crunchyroll uses Accept-Language to guess whether georestriction
 
63
        # should be imposed or not (from what I can see it just takes the first language
 
64
        # ignoring the priority and requires it to correspond the IP). By the way this causes
 
65
        # Crunchyroll to not work in georestriction cases in some browsers that don't place
 
66
        # the locale lang first in header. However allowing any language seems to workaround the issue.
 
67
        request.add_header('Accept-Language', '*')
 
68
        return super(CrunchyrollBaseIE, self)._download_webpage(
 
69
            request, video_id, note, errnote, fatal, tries, timeout, encoding)
 
70
 
 
71
    @staticmethod
 
72
    def _add_skip_wall(url):
 
73
        parsed_url = compat_urlparse.urlparse(url)
 
74
        qs = compat_urlparse.parse_qs(parsed_url.query)
 
75
        # Always force skip_wall to bypass maturity wall, namely 18+ confirmation message:
 
76
        # > This content may be inappropriate for some people.
 
77
        # > Are you sure you want to continue?
 
78
        # since it's not disabled by default in crunchyroll account's settings.
 
79
        # See https://github.com/rg3/youtube-dl/issues/7202.
 
80
        qs['skip_wall'] = ['1']
 
81
        return compat_urlparse.urlunparse(
 
82
            parsed_url._replace(query=compat_urllib_parse.urlencode(qs, True)))
 
83
 
 
84
 
 
85
class CrunchyrollIE(CrunchyrollBaseIE):
 
86
    _VALID_URL = r'https?://(?:(?P<prefix>www|m)\.)?(?P<url>crunchyroll\.(?:com|fr)/(?:media(?:-|/\?id=)|[^/]*/[^/?&]*?)(?P<video_id>[0-9]+))(?:[/?&]|$)'
 
87
    _TESTS = [{
 
88
        'url': 'http://www.crunchyroll.com/wanna-be-the-strongest-in-the-world/episode-1-an-idol-wrestler-is-born-645513',
 
89
        'info_dict': {
 
90
            'id': '645513',
 
91
            'ext': 'flv',
 
92
            'title': 'Wanna be the Strongest in the World Episode 1 – An Idol-Wrestler is Born!',
 
93
            'description': 'md5:2d17137920c64f2f49981a7797d275ef',
 
94
            'thumbnail': 'http://img1.ak.crunchyroll.com/i/spire1-tmb/20c6b5e10f1a47b10516877d3c039cae1380951166_full.jpg',
 
95
            'uploader': 'Yomiuri Telecasting Corporation (YTV)',
 
96
            'upload_date': '20131013',
 
97
            'url': 're:(?!.*&amp)',
 
98
        },
 
99
        'params': {
 
100
            # rtmp
 
101
            'skip_download': True,
 
102
        },
 
103
    }, {
 
104
        'url': 'http://www.crunchyroll.com/media-589804/culture-japan-1',
 
105
        'info_dict': {
 
106
            'id': '589804',
 
107
            'ext': 'flv',
 
108
            'title': 'Culture Japan Episode 1 – Rebuilding Japan after the 3.11',
 
109
            'description': 'md5:2fbc01f90b87e8e9137296f37b461c12',
 
110
            'thumbnail': 're:^https?://.*\.jpg$',
 
111
            'uploader': 'Danny Choo Network',
 
112
            'upload_date': '20120213',
 
113
        },
 
114
        'params': {
 
115
            # rtmp
 
116
            'skip_download': True,
 
117
        },
 
118
    }, {
 
119
        'url': 'http://www.crunchyroll.fr/girl-friend-beta/episode-11-goodbye-la-mode-661697',
 
120
        'only_matching': True,
 
121
    }, {
 
122
        # geo-restricted (US), 18+ maturity wall, non-premium available
 
123
        'url': 'http://www.crunchyroll.com/cosplay-complex-ova/episode-1-the-birth-of-the-cosplay-club-565617',
 
124
        'only_matching': True,
 
125
    }]
 
126
 
 
127
    _FORMAT_IDS = {
 
128
        '360': ('60', '106'),
 
129
        '480': ('61', '106'),
 
130
        '720': ('62', '106'),
 
131
        '1080': ('80', '108'),
 
132
    }
 
133
 
 
134
    def _decrypt_subtitles(self, data, iv, id):
 
135
        data = bytes_to_intlist(base64.b64decode(data.encode('utf-8')))
 
136
        iv = bytes_to_intlist(base64.b64decode(iv.encode('utf-8')))
 
137
        id = int(id)
 
138
 
 
139
        def obfuscate_key_aux(count, modulo, start):
 
140
            output = list(start)
 
141
            for _ in range(count):
 
142
                output.append(output[-1] + output[-2])
 
143
            # cut off start values
 
144
            output = output[2:]
 
145
            output = list(map(lambda x: x % modulo + 33, output))
 
146
            return output
 
147
 
 
148
        def obfuscate_key(key):
 
149
            num1 = int(floor(pow(2, 25) * sqrt(6.9)))
 
150
            num2 = (num1 ^ key) << 5
 
151
            num3 = key ^ num1
 
152
            num4 = num3 ^ (num3 >> 3) ^ num2
 
153
            prefix = intlist_to_bytes(obfuscate_key_aux(20, 97, (1, 2)))
 
154
            shaHash = bytes_to_intlist(sha1(prefix + str(num4).encode('ascii')).digest())
 
155
            # Extend 160 Bit hash to 256 Bit
 
156
            return shaHash + [0] * 12
 
157
 
 
158
        key = obfuscate_key(id)
 
159
 
 
160
        decrypted_data = intlist_to_bytes(aes_cbc_decrypt(data, key, iv))
 
161
        return zlib.decompress(decrypted_data)
 
162
 
 
163
    def _convert_subtitles_to_srt(self, sub_root):
 
164
        output = ''
 
165
 
 
166
        for i, event in enumerate(sub_root.findall('./events/event'), 1):
 
167
            start = event.attrib['start'].replace('.', ',')
 
168
            end = event.attrib['end'].replace('.', ',')
 
169
            text = event.attrib['text'].replace('\\N', '\n')
 
170
            output += '%d\n%s --> %s\n%s\n\n' % (i, start, end, text)
 
171
        return output
 
172
 
 
173
    def _convert_subtitles_to_ass(self, sub_root):
 
174
        output = ''
 
175
 
 
176
        def ass_bool(strvalue):
 
177
            assvalue = '0'
 
178
            if strvalue == '1':
 
179
                assvalue = '-1'
 
180
            return assvalue
 
181
 
 
182
        output = '[Script Info]\n'
 
183
        output += 'Title: %s\n' % sub_root.attrib["title"]
 
184
        output += 'ScriptType: v4.00+\n'
 
185
        output += 'WrapStyle: %s\n' % sub_root.attrib["wrap_style"]
 
186
        output += 'PlayResX: %s\n' % sub_root.attrib["play_res_x"]
 
187
        output += 'PlayResY: %s\n' % sub_root.attrib["play_res_y"]
 
188
        output += """ScaledBorderAndShadow: yes
 
189
 
 
190
[V4+ Styles]
 
191
Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
 
192
"""
 
193
        for style in sub_root.findall('./styles/style'):
 
194
            output += 'Style: ' + style.attrib["name"]
 
195
            output += ',' + style.attrib["font_name"]
 
196
            output += ',' + style.attrib["font_size"]
 
197
            output += ',' + style.attrib["primary_colour"]
 
198
            output += ',' + style.attrib["secondary_colour"]
 
199
            output += ',' + style.attrib["outline_colour"]
 
200
            output += ',' + style.attrib["back_colour"]
 
201
            output += ',' + ass_bool(style.attrib["bold"])
 
202
            output += ',' + ass_bool(style.attrib["italic"])
 
203
            output += ',' + ass_bool(style.attrib["underline"])
 
204
            output += ',' + ass_bool(style.attrib["strikeout"])
 
205
            output += ',' + style.attrib["scale_x"]
 
206
            output += ',' + style.attrib["scale_y"]
 
207
            output += ',' + style.attrib["spacing"]
 
208
            output += ',' + style.attrib["angle"]
 
209
            output += ',' + style.attrib["border_style"]
 
210
            output += ',' + style.attrib["outline"]
 
211
            output += ',' + style.attrib["shadow"]
 
212
            output += ',' + style.attrib["alignment"]
 
213
            output += ',' + style.attrib["margin_l"]
 
214
            output += ',' + style.attrib["margin_r"]
 
215
            output += ',' + style.attrib["margin_v"]
 
216
            output += ',' + style.attrib["encoding"]
 
217
            output += '\n'
 
218
 
 
219
        output += """
 
220
[Events]
 
221
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
 
222
"""
 
223
        for event in sub_root.findall('./events/event'):
 
224
            output += 'Dialogue: 0'
 
225
            output += ',' + event.attrib["start"]
 
226
            output += ',' + event.attrib["end"]
 
227
            output += ',' + event.attrib["style"]
 
228
            output += ',' + event.attrib["name"]
 
229
            output += ',' + event.attrib["margin_l"]
 
230
            output += ',' + event.attrib["margin_r"]
 
231
            output += ',' + event.attrib["margin_v"]
 
232
            output += ',' + event.attrib["effect"]
 
233
            output += ',' + event.attrib["text"]
 
234
            output += '\n'
 
235
 
 
236
        return output
 
237
 
 
238
    def _extract_subtitles(self, subtitle):
 
239
        sub_root = compat_etree_fromstring(subtitle)
 
240
        return [{
 
241
            'ext': 'srt',
 
242
            'data': self._convert_subtitles_to_srt(sub_root),
 
243
        }, {
 
244
            'ext': 'ass',
 
245
            'data': self._convert_subtitles_to_ass(sub_root),
 
246
        }]
 
247
 
 
248
    def _get_subtitles(self, video_id, webpage):
 
249
        subtitles = {}
 
250
        for sub_id, sub_name in re.findall(r'\bssid=([0-9]+)"[^>]+?\btitle="([^"]+)', webpage):
 
251
            sub_page = self._download_webpage(
 
252
                'http://www.crunchyroll.com/xml/?req=RpcApiSubtitle_GetXml&subtitle_script_id=' + sub_id,
 
253
                video_id, note='Downloading subtitles for ' + sub_name)
 
254
            id = self._search_regex(r'id=\'([0-9]+)', sub_page, 'subtitle_id', fatal=False)
 
255
            iv = self._search_regex(r'<iv>([^<]+)', sub_page, 'subtitle_iv', fatal=False)
 
256
            data = self._search_regex(r'<data>([^<]+)', sub_page, 'subtitle_data', fatal=False)
 
257
            if not id or not iv or not data:
 
258
                continue
 
259
            subtitle = self._decrypt_subtitles(data, iv, id).decode('utf-8')
 
260
            lang_code = self._search_regex(r'lang_code=["\']([^"\']+)', subtitle, 'subtitle_lang_code', fatal=False)
 
261
            if not lang_code:
 
262
                continue
 
263
            subtitles[lang_code] = self._extract_subtitles(subtitle)
 
264
        return subtitles
 
265
 
 
266
    def _real_extract(self, url):
 
267
        mobj = re.match(self._VALID_URL, url)
 
268
        video_id = mobj.group('video_id')
 
269
 
 
270
        if mobj.group('prefix') == 'm':
 
271
            mobile_webpage = self._download_webpage(url, video_id, 'Downloading mobile webpage')
 
272
            webpage_url = self._search_regex(r'<link rel="canonical" href="([^"]+)" />', mobile_webpage, 'webpage_url')
 
273
        else:
 
274
            webpage_url = 'http://www.' + mobj.group('url')
 
275
 
 
276
        webpage = self._download_webpage(self._add_skip_wall(webpage_url), video_id, 'Downloading webpage')
 
277
        note_m = self._html_search_regex(
 
278
            r'<div class="showmedia-trailer-notice">(.+?)</div>',
 
279
            webpage, 'trailer-notice', default='')
 
280
        if note_m:
 
281
            raise ExtractorError(note_m)
 
282
 
 
283
        mobj = re.search(r'Page\.messaging_box_controller\.addItems\(\[(?P<msg>{.+?})\]\)', webpage)
 
284
        if mobj:
 
285
            msg = json.loads(mobj.group('msg'))
 
286
            if msg.get('type') == 'error':
 
287
                raise ExtractorError('crunchyroll returned error: %s' % msg['message_body'], expected=True)
 
288
 
 
289
        if 'To view this, please log in to verify you are 18 or older.' in webpage:
 
290
            self.raise_login_required()
 
291
 
 
292
        video_title = self._html_search_regex(
 
293
            r'(?s)<h1[^>]*>((?:(?!<h1).)*?<span[^>]+itemprop=["\']title["\'][^>]*>(?:(?!<h1).)+?)</h1>',
 
294
            webpage, 'video_title')
 
295
        video_title = re.sub(r' {2,}', ' ', video_title)
 
296
        video_description = self._html_search_regex(
 
297
            r'<script[^>]*>\s*.+?\[media_id=%s\].+?"description"\s*:\s*"([^"]+)' % video_id,
 
298
            webpage, 'description', default=None)
 
299
        if video_description:
 
300
            video_description = lowercase_escape(video_description.replace(r'\r\n', '\n'))
 
301
        video_upload_date = self._html_search_regex(
 
302
            [r'<div>Availability for free users:(.+?)</div>', r'<div>[^<>]+<span>\s*(.+?\d{4})\s*</span></div>'],
 
303
            webpage, 'video_upload_date', fatal=False, flags=re.DOTALL)
 
304
        if video_upload_date:
 
305
            video_upload_date = unified_strdate(video_upload_date)
 
306
        video_uploader = self._html_search_regex(
 
307
            r'<a[^>]+href="/publisher/[^"]+"[^>]*>([^<]+)</a>', webpage,
 
308
            'video_uploader', fatal=False)
 
309
 
 
310
        playerdata_url = compat_urllib_parse_unquote(self._html_search_regex(r'"config_url":"([^"]+)', webpage, 'playerdata_url'))
 
311
        playerdata_req = sanitized_Request(playerdata_url)
 
312
        playerdata_req.data = compat_urllib_parse.urlencode({'current_page': webpage_url})
 
313
        playerdata_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
 
314
        playerdata = self._download_webpage(playerdata_req, video_id, note='Downloading media info')
 
315
 
 
316
        stream_id = self._search_regex(r'<media_id>([^<]+)', playerdata, 'stream_id')
 
317
        video_thumbnail = self._search_regex(r'<episode_image_url>([^<]+)', playerdata, 'thumbnail', fatal=False)
 
318
 
 
319
        formats = []
 
320
        for fmt in re.findall(r'showmedia\.([0-9]{3,4})p', webpage):
 
321
            stream_quality, stream_format = self._FORMAT_IDS[fmt]
 
322
            video_format = fmt + 'p'
 
323
            streamdata_req = sanitized_Request(
 
324
                'http://www.crunchyroll.com/xml/?req=RpcApiVideoPlayer_GetStandardConfig&media_id=%s&video_format=%s&video_quality=%s'
 
325
                % (stream_id, stream_format, stream_quality),
 
326
                compat_urllib_parse.urlencode({'current_page': url}).encode('utf-8'))
 
327
            streamdata_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
 
328
            streamdata = self._download_xml(
 
329
                streamdata_req, video_id,
 
330
                note='Downloading media info for %s' % video_format)
 
331
            stream_info = streamdata.find('./{default}preload/stream_info')
 
332
            video_url = stream_info.find('./host').text
 
333
            video_play_path = stream_info.find('./file').text
 
334
            metadata = stream_info.find('./metadata')
 
335
            format_info = {
 
336
                'format': video_format,
 
337
                'format_id': video_format,
 
338
                'height': int_or_none(xpath_text(metadata, './height')),
 
339
                'width': int_or_none(xpath_text(metadata, './width')),
 
340
            }
 
341
 
 
342
            if '.fplive.net/' in video_url:
 
343
                video_url = re.sub(r'^rtmpe?://', 'http://', video_url.strip())
 
344
                parsed_video_url = compat_urlparse.urlparse(video_url)
 
345
                direct_video_url = compat_urlparse.urlunparse(parsed_video_url._replace(
 
346
                    netloc='v.lvlt.crcdn.net',
 
347
                    path='%s/%s' % (remove_end(parsed_video_url.path, '/'), video_play_path.split(':')[-1])))
 
348
                if self._is_valid_url(direct_video_url, video_id, video_format):
 
349
                    format_info.update({
 
350
                        'url': direct_video_url,
 
351
                    })
 
352
                    formats.append(format_info)
 
353
                    continue
 
354
 
 
355
            format_info.update({
 
356
                'url': video_url,
 
357
                'play_path': video_play_path,
 
358
                'ext': 'flv',
 
359
            })
 
360
            formats.append(format_info)
 
361
 
 
362
        subtitles = self.extract_subtitles(video_id, webpage)
 
363
 
 
364
        return {
 
365
            'id': video_id,
 
366
            'title': video_title,
 
367
            'description': video_description,
 
368
            'thumbnail': video_thumbnail,
 
369
            'uploader': video_uploader,
 
370
            'upload_date': video_upload_date,
 
371
            'subtitles': subtitles,
 
372
            'formats': formats,
 
373
        }
 
374
 
 
375
 
 
376
class CrunchyrollShowPlaylistIE(CrunchyrollBaseIE):
 
377
    IE_NAME = "crunchyroll:playlist"
 
378
    _VALID_URL = r'https?://(?:(?P<prefix>www|m)\.)?(?P<url>crunchyroll\.com/(?!(?:news|anime-news|library|forum|launchcalendar|lineup|store|comics|freetrial|login))(?P<id>[\w\-]+))/?(?:\?|$)'
 
379
 
 
380
    _TESTS = [{
 
381
        'url': 'http://www.crunchyroll.com/a-bridge-to-the-starry-skies-hoshizora-e-kakaru-hashi',
 
382
        'info_dict': {
 
383
            'id': 'a-bridge-to-the-starry-skies-hoshizora-e-kakaru-hashi',
 
384
            'title': 'A Bridge to the Starry Skies - Hoshizora e Kakaru Hashi'
 
385
        },
 
386
        'playlist_count': 13,
 
387
    }, {
 
388
        # geo-restricted (US), 18+ maturity wall, non-premium available
 
389
        'url': 'http://www.crunchyroll.com/cosplay-complex-ova',
 
390
        'info_dict': {
 
391
            'id': 'cosplay-complex-ova',
 
392
            'title': 'Cosplay Complex OVA'
 
393
        },
 
394
        'playlist_count': 3,
 
395
        'skip': 'Georestricted',
 
396
    }, {
 
397
        # geo-restricted (US), 18+ maturity wall, non-premium will be available since 2015.11.14
 
398
        'url': 'http://www.crunchyroll.com/ladies-versus-butlers?skip_wall=1',
 
399
        'only_matching': True,
 
400
    }]
 
401
 
 
402
    def _real_extract(self, url):
 
403
        show_id = self._match_id(url)
 
404
 
 
405
        webpage = self._download_webpage(self._add_skip_wall(url), show_id)
 
406
        title = self._html_search_regex(
 
407
            r'(?s)<h1[^>]*>\s*<span itemprop="name">(.*?)</span>',
 
408
            webpage, 'title')
 
409
        episode_paths = re.findall(
 
410
            r'(?s)<li id="showview_videos_media_[0-9]+"[^>]+>.*?<a href="([^"]+)"',
 
411
            webpage)
 
412
        entries = [
 
413
            self.url_result('http://www.crunchyroll.com' + ep, 'Crunchyroll')
 
414
            for ep in episode_paths
 
415
        ]
 
416
        entries.reverse()
 
417
 
 
418
        return {
 
419
            '_type': 'playlist',
 
420
            'id': show_id,
 
421
            'title': title,
 
422
            'entries': entries,
 
423
        }