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188 lines
8.3 KiB
188 lines
8.3 KiB
# encoding: utf-8 |
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from __future__ import unicode_literals |
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import re |
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import json |
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import base64 |
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import zlib |
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from hashlib import sha1 |
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from math import pow, sqrt, floor |
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from .common import InfoExtractor |
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from ..utils import ( |
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ExtractorError, |
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compat_urllib_parse, |
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compat_urllib_request, |
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bytes_to_intlist, |
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intlist_to_bytes, |
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unified_strdate, |
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clean_html, |
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) |
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from ..aes import ( |
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aes_cbc_decrypt, |
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inc, |
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) |
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class CrunchyrollIE(InfoExtractor): |
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_VALID_URL = r'https?://(?:(?P<prefix>www|m)\.)?(?P<url>crunchyroll\.com/(?:[^/]*/[^/?&]*?|media/\?id=)(?P<video_id>[0-9]+))(?:[/?&]|$)' |
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_TEST = { |
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'url': 'http://www.crunchyroll.com/wanna-be-the-strongest-in-the-world/episode-1-an-idol-wrestler-is-born-645513', |
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#'md5': 'b1639fd6ddfaa43788c85f6d1dddd412', |
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'info_dict': { |
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'id': '645513', |
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'ext': 'flv', |
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'title': 'Wanna be the Strongest in the World Episode 1 – An Idol-Wrestler is Born!', |
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'description': 'md5:2d17137920c64f2f49981a7797d275ef', |
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'thumbnail': 'http://img1.ak.crunchyroll.com/i/spire1-tmb/20c6b5e10f1a47b10516877d3c039cae1380951166_full.jpg', |
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'uploader': 'Yomiuri Telecasting Corporation (YTV)', |
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'upload_date': '20131013', |
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}, |
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'params': { |
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# rtmp |
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'skip_download': True, |
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}, |
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} |
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_FORMAT_IDS = { |
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'360': ('60', '106'), |
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'480': ('61', '106'), |
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'720': ('62', '106'), |
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'1080': ('80', '108'), |
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} |
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def _decrypt_subtitles(self, data, iv, id): |
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data = bytes_to_intlist(data) |
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iv = bytes_to_intlist(iv) |
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id = int(id) |
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def obfuscate_key_aux(count, modulo, start): |
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output = list(start) |
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for _ in range(count): |
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output.append(output[-1] + output[-2]) |
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# cut off start values |
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output = output[2:] |
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output = list(map(lambda x: x % modulo + 33, output)) |
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return output |
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def obfuscate_key(key): |
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num1 = int(floor(pow(2, 25) * sqrt(6.9))) |
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num2 = (num1 ^ key) << 5 |
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num3 = key ^ num1 |
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num4 = num3 ^ (num3 >> 3) ^ num2 |
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prefix = intlist_to_bytes(obfuscate_key_aux(20, 97, (1, 2))) |
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shaHash = bytes_to_intlist(sha1(prefix + str(num4).encode('ascii')).digest()) |
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# Extend 160 Bit hash to 256 Bit |
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return shaHash + [0] * 12 |
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key = obfuscate_key(id) |
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class Counter: |
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__value = iv |
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def next_value(self): |
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temp = self.__value |
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self.__value = inc(self.__value) |
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return temp |
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decrypted_data = intlist_to_bytes(aes_cbc_decrypt(data, key, iv)) |
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return zlib.decompress(decrypted_data) |
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def _convert_subtitles_to_srt(self, subtitles): |
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output = '' |
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for i, (start, end, text) in enumerate(re.findall(r'<event [^>]*?start="([^"]+)" [^>]*?end="([^"]+)" [^>]*?text="([^"]+)"[^>]*?>', subtitles), 1): |
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start = start.replace('.', ',') |
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end = end.replace('.', ',') |
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text = clean_html(text) |
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text = text.replace('\\N', '\n') |
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if not text: |
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continue |
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output += '%d\n%s --> %s\n%s\n\n' % (i, start, end, text) |
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return output |
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def _real_extract(self,url): |
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mobj = re.match(self._VALID_URL, url) |
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video_id = mobj.group('video_id') |
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if mobj.group('prefix') == 'm': |
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mobile_webpage = self._download_webpage(url, video_id, 'Downloading mobile webpage') |
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webpage_url = self._search_regex(r'<link rel="canonical" href="([^"]+)" />', mobile_webpage, 'webpage_url') |
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else: |
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webpage_url = 'http://www.' + mobj.group('url') |
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webpage = self._download_webpage(webpage_url, video_id, 'Downloading webpage') |
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note_m = self._html_search_regex(r'<div class="showmedia-trailer-notice">(.+?)</div>', webpage, 'trailer-notice', default='') |
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if note_m: |
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raise ExtractorError(note_m) |
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mobj = re.search(r'Page\.messaging_box_controller\.addItems\(\[(?P<msg>{.+?})\]\)', webpage) |
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if mobj: |
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msg = json.loads(mobj.group('msg')) |
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if msg.get('type') == 'error': |
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raise ExtractorError('crunchyroll returned error: %s' % msg['message_body'], expected=True) |
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video_title = self._html_search_regex(r'<h1[^>]*>(.+?)</h1>', webpage, 'video_title', flags=re.DOTALL) |
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video_title = re.sub(r' {2,}', ' ', video_title) |
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video_description = self._html_search_regex(r'"description":"([^"]+)', webpage, 'video_description', default='') |
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if not video_description: |
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video_description = None |
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video_upload_date = self._html_search_regex(r'<div>Availability for free users:(.+?)</div>', webpage, 'video_upload_date', fatal=False, flags=re.DOTALL) |
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if video_upload_date: |
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video_upload_date = unified_strdate(video_upload_date) |
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video_uploader = self._html_search_regex(r'<div>\s*Publisher:(.+?)</div>', webpage, 'video_uploader', fatal=False, flags=re.DOTALL) |
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playerdata_url = compat_urllib_parse.unquote(self._html_search_regex(r'"config_url":"([^"]+)', webpage, 'playerdata_url')) |
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playerdata_req = compat_urllib_request.Request(playerdata_url) |
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playerdata_req.data = compat_urllib_parse.urlencode({'current_page': webpage_url}) |
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playerdata_req.add_header('Content-Type', 'application/x-www-form-urlencoded') |
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playerdata = self._download_webpage(playerdata_req, video_id, note='Downloading media info') |
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stream_id = self._search_regex(r'<media_id>([^<]+)', playerdata, 'stream_id') |
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video_thumbnail = self._search_regex(r'<episode_image_url>([^<]+)', playerdata, 'thumbnail', fatal=False) |
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formats = [] |
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for fmt in re.findall(r'\?p([0-9]{3,4})=1', webpage): |
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stream_quality, stream_format = self._FORMAT_IDS[fmt] |
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video_format = fmt+'p' |
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streamdata_req = compat_urllib_request.Request('http://www.crunchyroll.com/xml/') |
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# urlencode doesn't work! |
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streamdata_req.data = 'req=RpcApiVideoEncode%5FGetStreamInfo&video%5Fencode%5Fquality='+stream_quality+'&media%5Fid='+stream_id+'&video%5Fformat='+stream_format |
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streamdata_req.add_header('Content-Type', 'application/x-www-form-urlencoded') |
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streamdata_req.add_header('Content-Length', str(len(streamdata_req.data))) |
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streamdata = self._download_webpage(streamdata_req, video_id, note='Downloading media info for '+video_format) |
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video_url = self._search_regex(r'<host>([^<]+)', streamdata, 'video_url') |
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video_play_path = self._search_regex(r'<file>([^<]+)', streamdata, 'video_play_path') |
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formats.append({ |
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'url': video_url, |
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'play_path': video_play_path, |
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'ext': 'flv', |
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'format': video_format, |
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'format_id': video_format, |
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}) |
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subtitles = {} |
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for sub_id, sub_name in re.findall(r'\?ssid=([0-9]+)" title="([^"]+)', webpage): |
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sub_page = self._download_webpage('http://www.crunchyroll.com/xml/?req=RpcApiSubtitle_GetXml&subtitle_script_id='+sub_id,\ |
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video_id, note='Downloading subtitles for '+sub_name) |
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id = self._search_regex(r'id=\'([0-9]+)', sub_page, 'subtitle_id', fatal=False) |
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iv = self._search_regex(r'<iv>([^<]+)', sub_page, 'subtitle_iv', fatal=False) |
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data = self._search_regex(r'<data>([^<]+)', sub_page, 'subtitle_data', fatal=False) |
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if not id or not iv or not data: |
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continue |
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id = int(id) |
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iv = base64.b64decode(iv) |
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data = base64.b64decode(data) |
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subtitle = self._decrypt_subtitles(data, iv, id).decode('utf-8') |
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lang_code = self._search_regex(r'lang_code=["\']([^"\']+)', subtitle, 'subtitle_lang_code', fatal=False) |
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if not lang_code: |
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continue |
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subtitles[lang_code] = self._convert_subtitles_to_srt(subtitle) |
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return { |
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'id': video_id, |
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'title': video_title, |
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'description': video_description, |
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'thumbnail': video_thumbnail, |
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'uploader': video_uploader, |
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'upload_date': video_upload_date, |
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'subtitles': subtitles, |
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'formats': formats, |
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}
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