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