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[youtubedl] / youtube_dl / extractor / crunchyroll.py
1 # encoding: utf-8
2 from __future__ import unicode_literals
3
4 import re
5 import json
6 import base64
7 import zlib
8 import xml.etree.ElementTree
9
10 from hashlib import sha1
11 from math import pow, sqrt, floor
12 from .subtitles import SubtitlesInfoExtractor
13 from ..utils import (
14 ExtractorError,
15 compat_urllib_parse,
16 compat_urllib_request,
17 bytes_to_intlist,
18 intlist_to_bytes,
19 unified_strdate,
20 urlencode_postdata,
21 )
22 from ..aes import (
23 aes_cbc_decrypt,
24 inc,
25 )
26 from .common import InfoExtractor
27
28
29 class CrunchyrollIE(SubtitlesInfoExtractor):
30 _VALID_URL = r'https?://(?:(?P<prefix>www|m)\.)?(?P<url>crunchyroll\.com/(?:[^/]*/[^/?&]*?|media/\?id=)(?P<video_id>[0-9]+))(?:[/?&]|$)'
31 _TEST = {
32 'url': 'http://www.crunchyroll.com/wanna-be-the-strongest-in-the-world/episode-1-an-idol-wrestler-is-born-645513',
33 #'md5': 'b1639fd6ddfaa43788c85f6d1dddd412',
34 'info_dict': {
35 'id': '645513',
36 'ext': 'flv',
37 'title': 'Wanna be the Strongest in the World Episode 1 – An Idol-Wrestler is Born!',
38 'description': 'md5:2d17137920c64f2f49981a7797d275ef',
39 'thumbnail': 'http://img1.ak.crunchyroll.com/i/spire1-tmb/20c6b5e10f1a47b10516877d3c039cae1380951166_full.jpg',
40 'uploader': 'Yomiuri Telecasting Corporation (YTV)',
41 'upload_date': '20131013',
42 'url': 're:(?!.*&amp)',
43 },
44 'params': {
45 # rtmp
46 'skip_download': True,
47 },
48 }
49
50 _FORMAT_IDS = {
51 '360': ('60', '106'),
52 '480': ('61', '106'),
53 '720': ('62', '106'),
54 '1080': ('80', '108'),
55 }
56
57 def _login(self):
58 (username, password) = self._get_login_info()
59 if username is None:
60 return
61 self.report_login()
62 login_url = 'https://www.crunchyroll.com/?a=formhandler'
63 data = urlencode_postdata({
64 'formname': 'RpcApiUser_Login',
65 'name': username,
66 'password': password,
67 })
68 login_request = compat_urllib_request.Request(login_url, data)
69 login_request.add_header('Content-Type', 'application/x-www-form-urlencoded')
70 self._download_webpage(login_request, None, False, 'Wrong login info')
71
72 def _real_initialize(self):
73 self._login()
74
75 def _decrypt_subtitles(self, data, iv, id):
76 data = bytes_to_intlist(data)
77 iv = bytes_to_intlist(iv)
78 id = int(id)
79
80 def obfuscate_key_aux(count, modulo, start):
81 output = list(start)
82 for _ in range(count):
83 output.append(output[-1] + output[-2])
84 # cut off start values
85 output = output[2:]
86 output = list(map(lambda x: x % modulo + 33, output))
87 return output
88
89 def obfuscate_key(key):
90 num1 = int(floor(pow(2, 25) * sqrt(6.9)))
91 num2 = (num1 ^ key) << 5
92 num3 = key ^ num1
93 num4 = num3 ^ (num3 >> 3) ^ num2
94 prefix = intlist_to_bytes(obfuscate_key_aux(20, 97, (1, 2)))
95 shaHash = bytes_to_intlist(sha1(prefix + str(num4).encode('ascii')).digest())
96 # Extend 160 Bit hash to 256 Bit
97 return shaHash + [0] * 12
98
99 key = obfuscate_key(id)
100
101 class Counter:
102 __value = iv
103
104 def next_value(self):
105 temp = self.__value
106 self.__value = inc(self.__value)
107 return temp
108 decrypted_data = intlist_to_bytes(aes_cbc_decrypt(data, key, iv))
109 return zlib.decompress(decrypted_data)
110
111 def _convert_subtitles_to_srt(self, sub_root):
112 output = ''
113
114 for i, event in enumerate(sub_root.findall('./events/event'), 1):
115 start = event.attrib['start'].replace('.', ',')
116 end = event.attrib['end'].replace('.', ',')
117 text = event.attrib['text'].replace('\\N', '\n')
118 output += '%d\n%s --> %s\n%s\n\n' % (i, start, end, text)
119 return output
120
121 def _convert_subtitles_to_ass(self, sub_root):
122 output = ''
123
124 def ass_bool(strvalue):
125 assvalue = '0'
126 if strvalue == '1':
127 assvalue = '-1'
128 return assvalue
129
130 output = '[Script Info]\n'
131 output += 'Title: %s\n' % sub_root.attrib["title"]
132 output += 'ScriptType: v4.00+\n'
133 output += 'WrapStyle: %s\n' % sub_root.attrib["wrap_style"]
134 output += 'PlayResX: %s\n' % sub_root.attrib["play_res_x"]
135 output += 'PlayResY: %s\n' % sub_root.attrib["play_res_y"]
136 output += """ScaledBorderAndShadow: yes
137
138 [V4+ Styles]
139 Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
140 """
141 for style in sub_root.findall('./styles/style'):
142 output += 'Style: ' + style.attrib["name"]
143 output += ',' + style.attrib["font_name"]
144 output += ',' + style.attrib["font_size"]
145 output += ',' + style.attrib["primary_colour"]
146 output += ',' + style.attrib["secondary_colour"]
147 output += ',' + style.attrib["outline_colour"]
148 output += ',' + style.attrib["back_colour"]
149 output += ',' + ass_bool(style.attrib["bold"])
150 output += ',' + ass_bool(style.attrib["italic"])
151 output += ',' + ass_bool(style.attrib["underline"])
152 output += ',' + ass_bool(style.attrib["strikeout"])
153 output += ',' + style.attrib["scale_x"]
154 output += ',' + style.attrib["scale_y"]
155 output += ',' + style.attrib["spacing"]
156 output += ',' + style.attrib["angle"]
157 output += ',' + style.attrib["border_style"]
158 output += ',' + style.attrib["outline"]
159 output += ',' + style.attrib["shadow"]
160 output += ',' + style.attrib["alignment"]
161 output += ',' + style.attrib["margin_l"]
162 output += ',' + style.attrib["margin_r"]
163 output += ',' + style.attrib["margin_v"]
164 output += ',' + style.attrib["encoding"]
165 output += '\n'
166
167 output += """
168 [Events]
169 Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
170 """
171 for event in sub_root.findall('./events/event'):
172 output += 'Dialogue: 0'
173 output += ',' + event.attrib["start"]
174 output += ',' + event.attrib["end"]
175 output += ',' + event.attrib["style"]
176 output += ',' + event.attrib["name"]
177 output += ',' + event.attrib["margin_l"]
178 output += ',' + event.attrib["margin_r"]
179 output += ',' + event.attrib["margin_v"]
180 output += ',' + event.attrib["effect"]
181 output += ',' + event.attrib["text"]
182 output += '\n'
183
184 return output
185
186 def _real_extract(self, url):
187 mobj = re.match(self._VALID_URL, url)
188 video_id = mobj.group('video_id')
189
190 if mobj.group('prefix') == 'm':
191 mobile_webpage = self._download_webpage(url, video_id, 'Downloading mobile webpage')
192 webpage_url = self._search_regex(r'<link rel="canonical" href="([^"]+)" />', mobile_webpage, 'webpage_url')
193 else:
194 webpage_url = 'http://www.' + mobj.group('url')
195
196 webpage = self._download_webpage(webpage_url, video_id, 'Downloading webpage')
197 note_m = self._html_search_regex(r'<div class="showmedia-trailer-notice">(.+?)</div>', webpage, 'trailer-notice', default='')
198 if note_m:
199 raise ExtractorError(note_m)
200
201 mobj = re.search(r'Page\.messaging_box_controller\.addItems\(\[(?P<msg>{.+?})\]\)', webpage)
202 if mobj:
203 msg = json.loads(mobj.group('msg'))
204 if msg.get('type') == 'error':
205 raise ExtractorError('crunchyroll returned error: %s' % msg['message_body'], expected=True)
206
207 video_title = self._html_search_regex(r'<h1[^>]*>(.+?)</h1>', webpage, 'video_title', flags=re.DOTALL)
208 video_title = re.sub(r' {2,}', ' ', video_title)
209 video_description = self._html_search_regex(r'"description":"([^"]+)', webpage, 'video_description', default='')
210 if not video_description:
211 video_description = None
212 video_upload_date = self._html_search_regex(r'<div>Availability for free users:(.+?)</div>', webpage, 'video_upload_date', fatal=False, flags=re.DOTALL)
213 if video_upload_date:
214 video_upload_date = unified_strdate(video_upload_date)
215 video_uploader = self._html_search_regex(r'<div>\s*Publisher:(.+?)</div>', webpage, 'video_uploader', fatal=False, flags=re.DOTALL)
216
217 playerdata_url = compat_urllib_parse.unquote(self._html_search_regex(r'"config_url":"([^"]+)', webpage, 'playerdata_url'))
218 playerdata_req = compat_urllib_request.Request(playerdata_url)
219 playerdata_req.data = compat_urllib_parse.urlencode({'current_page': webpage_url})
220 playerdata_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
221 playerdata = self._download_webpage(playerdata_req, video_id, note='Downloading media info')
222
223 stream_id = self._search_regex(r'<media_id>([^<]+)', playerdata, 'stream_id')
224 video_thumbnail = self._search_regex(r'<episode_image_url>([^<]+)', playerdata, 'thumbnail', fatal=False)
225
226 formats = []
227 for fmt in re.findall(r'\?p([0-9]{3,4})=1', webpage):
228 stream_quality, stream_format = self._FORMAT_IDS[fmt]
229 video_format = fmt + 'p'
230 streamdata_req = compat_urllib_request.Request('http://www.crunchyroll.com/xml/')
231 # urlencode doesn't work!
232 streamdata_req.data = 'req=RpcApiVideoEncode%5FGetStreamInfo&video%5Fencode%5Fquality=' + stream_quality + '&media%5Fid=' + stream_id + '&video%5Fformat=' + stream_format
233 streamdata_req.add_header('Content-Type', 'application/x-www-form-urlencoded')
234 streamdata_req.add_header('Content-Length', str(len(streamdata_req.data)))
235 streamdata = self._download_xml(
236 streamdata_req, video_id,
237 note='Downloading media info for %s' % video_format)
238 video_url = streamdata.find('.//host').text
239 video_play_path = streamdata.find('.//file').text
240 formats.append({
241 'url': video_url,
242 'play_path': video_play_path,
243 'ext': 'flv',
244 'format': video_format,
245 'format_id': video_format,
246 })
247
248 subtitles = {}
249 sub_format = self._downloader.params.get('subtitlesformat', 'srt')
250 for sub_id, sub_name in re.findall(r'\?ssid=([0-9]+)" title="([^"]+)', 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 id = int(id)
260 iv = base64.b64decode(iv)
261 data = base64.b64decode(data)
262
263 subtitle = self._decrypt_subtitles(data, iv, id).decode('utf-8')
264 lang_code = self._search_regex(r'lang_code=["\']([^"\']+)', subtitle, 'subtitle_lang_code', fatal=False)
265 if not lang_code:
266 continue
267 sub_root = xml.etree.ElementTree.fromstring(subtitle)
268 if sub_format == 'ass':
269 subtitles[lang_code] = self._convert_subtitles_to_ass(sub_root)
270 else:
271 subtitles[lang_code] = self._convert_subtitles_to_srt(sub_root)
272
273 if self._downloader.params.get('listsubtitles', False):
274 self._list_available_subtitles(video_id, subtitles)
275 return
276
277 return {
278 'id': video_id,
279 'title': video_title,
280 'description': video_description,
281 'thumbnail': video_thumbnail,
282 'uploader': video_uploader,
283 'upload_date': video_upload_date,
284 'subtitles': subtitles,
285 'formats': formats,
286 }
287
288
289 class CrunchyrollShowPlaylistIE(InfoExtractor):
290 IE_NAME = "crunchyroll:playlist"
291 _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\-]+))/?$'
292
293 _TESTS = [{
294 'url': 'http://www.crunchyroll.com/a-bridge-to-the-starry-skies-hoshizora-e-kakaru-hashi',
295 'info_dict': {
296 'id': 'a-bridge-to-the-starry-skies-hoshizora-e-kakaru-hashi',
297 'title': 'A Bridge to the Starry Skies - Hoshizora e Kakaru Hashi'
298 },
299 'playlist_count': 13,
300 }]
301
302 def _real_extract(self, url):
303 show_id = self._match_id(url)
304
305 webpage = self._download_webpage(url, show_id)
306 title = self._html_search_regex(
307 r'(?s)<h1[^>]*>\s*<span itemprop="name">(.*?)</span>',
308 webpage, 'title')
309 episode_paths = re.findall(
310 r'(?s)<li id="showview_videos_media_[0-9]+"[^>]+>.*?<a href="([^"]+)"',
311 webpage)
312 entries = [
313 self.url_result('http://www.crunchyroll.com' + ep, 'Crunchyroll')
314 for ep in episode_paths
315 ]
316 entries.reverse()
317
318 return {
319 '_type': 'playlist',
320 'id': show_id,
321 'title': title,
322 'entries': entries,
323 }