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