# coding: utf-8 import json import math import random import re import time from struct import unpack from .common import InfoExtractor from ..utils import ( ExtractorError, compat_urllib_request ) class YoukuIE(InfoExtractor): _VALID_URL = r'(?:(?:http://)?(?:v|player)\.youku\.com/(?:v_show/id_|player\.php/sid/)|youku:)(?P[A-Za-z0-9]+)(?:\.html|/v\.swf|)' _TEST = { u"url": u"http://v.youku.com/v_show/id_XNDgyMDQ2NTQw.html", u"file": u"XNDgyMDQ2NTQw_part00.flv", u"md5": u"ffe3f2e435663dc2d1eea34faeff5b5b", u"params": {u"test": False}, u"info_dict": { u"title": u"youtube-dl test video \"'/\\ä↭𝕐" } } def _gen_sid(self): nowTime = int(time.time() * 1000) random1 = random.randint(1000,1998) random2 = random.randint(1000,9999) return "%d%d%d" %(nowTime,random1,random2) def _get_file_ID_mix_string(self, seed): mixed = [] source = list("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/\:._-1234567890") seed = float(seed) for i in range(len(source)): seed = (seed * 211 + 30031) % 65536 index = math.floor(seed / 65536 * len(source)) mixed.append(source[int(index)]) source.remove(source[int(index)]) #return ''.join(mixed) return mixed def _get_file_id(self, fileId, seed): mixed = self._get_file_ID_mix_string(seed) ids = fileId.split('*') realId = [] for ch in ids: if ch: realId.append(mixed[int(ch)]) return ''.join(realId) def _real_extract(self, url): mobj = re.match(self._VALID_URL, url) if mobj is None: raise ExtractorError(u'Invalid URL: %s' % url) video_id = mobj.group('ID') info_url = 'http://v.youku.com/player/getPlayList/VideoIDS/' + video_id jsondata = self._download_webpage(info_url, video_id) self.report_extraction(video_id) try: config = json.loads(jsondata) error_code = config['data'][0].get('error_code') # -8 means blocked outside China. if error_code == -8: proxy_handler = compat_urllib_request.ProxyHandler({ 'http': 'h0.edu.bj.ie.sogou.com' }) opener = compat_urllib_request.build_opener(proxy_handler) old_opener = compat_urllib_request.install_opener(opener) t = hex(int(time.time()))[2:].rstrip('L').zfill(8) proxied_request = compat_urllib_request.Request(info_url) proxied_request.add_header('X-Sogou-Auth', self.x_sogou_auth) proxied_request.add_header('X-Sogou-Tag', self.calc_sogou_hash(t, 'v.youku.com')) proxied_request.add_header('X-Sogou-Timestamp', t) jsondata = self._download_webpage(proxied_request, video_id) config = json.loads(jsondata) error_code = config['data'][0].get('error_code') # XXX: needs a way to restore the original proxy settings compat_urllib_request.install_opener(compat_urllib_request.build_opener(compat_urllib_request.ProxyHandler({}))) if error_code: error = config['data'][0].get('error') # Chinese and English, separated by newline. raise ExtractorError(error or u'Server reported error %i' % error_code, expected=True) video_title = config['data'][0]['title'] seed = config['data'][0]['seed'] format = self._downloader.params.get('format', None) supported_format = list(config['data'][0]['streamfileids'].keys()) if format is None or format == 'best': if 'hd2' in supported_format: format = 'hd2' else: format = 'flv' ext = u'flv' elif format == 'worst': format = 'mp4' ext = u'mp4' else: format = 'flv' ext = u'flv' fileid = config['data'][0]['streamfileids'][format] keys = [s['k'] for s in config['data'][0]['segs'][format]] # segs is usually a dictionary, but an empty *list* if an error occured. except (UnicodeDecodeError, ValueError, KeyError): raise ExtractorError(u'Unable to extract info section') files_info=[] sid = self._gen_sid() fileid = self._get_file_id(fileid, seed) #column 8,9 of fileid represent the segment number #fileid[7:9] should be changed for index, key in enumerate(keys): temp_fileid = '%s%02X%s' % (fileid[0:8], index, fileid[10:]) download_url = 'http://f.youku.com/player/getFlvPath/sid/%s_%02X/st/flv/fileid/%s?k=%s' % (sid, index, temp_fileid, key) info = { 'id': '%s_part%02d' % (video_id, index), 'url': download_url, 'uploader': None, 'upload_date': None, 'title': video_title, 'ext': ext, } files_info.append(info) return files_info x_sogou_auth = "9CD285F1E7ADB0BD403C22AD1D545F40/30/853edc6d49ba4e27" # http://xiaoxia.org/2011/11/14/update-sogou-proxy-program-with-https-support/ def calc_sogou_hash(self, t, host): s = (t + host + 'SogouExplorerProxy').encode('ascii') code = len(s) dwords = int(len(s)/4) rest = len(s) % 4 v = unpack(str(dwords) + 'i'+str(rest)+'s', s) for vv in v: if(type(vv)==type('i')): break a = (vv & 0xFFFF) b = (vv >> 16) code += a code = code ^ (((code<<5)^b) << 0xb) # To avoid overflows code &= 0xffffffff code += code >> 0xb if rest == 3: code += ord(s[len(s)-2]) * 256 + ord(s[len(s)-3]) code = code ^ ((code ^ (ord(s[len(s)-1])*4)) << 0x10) code &= 0xffffffff code += code >> 0xb elif rest == 2: code += ord(s[len(s)-1]) * 256 + ord(s[len(s)-2]) code ^= code << 0xb code &= 0xffffffff code += code >> 0x11 elif rest == 1: code += ord(s[len(s)-1]) code ^= code << 0xa code &= 0xffffffff code += code >> 0x1 code ^= code * 8 code &= 0xffffffff code += code >> 5 code ^= code << 4 code = code & 0xffffffff code += code >> 0x11 code ^= code << 0x19 code = code & 0xffffffff code += code >> 6 code = code & 0xffffffff return hex(code)[2:].rstrip('L').zfill(8)