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Diffstat (limited to 'youtube_dl/extractor/crunchyroll.py')
| -rw-r--r-- | youtube_dl/extractor/crunchyroll.py | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/youtube_dl/extractor/crunchyroll.py b/youtube_dl/extractor/crunchyroll.py new file mode 100644 index 000000000..2b66bddbb --- /dev/null +++ b/youtube_dl/extractor/crunchyroll.py @@ -0,0 +1,171 @@ +# 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, + } |