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mirror of https://github.com/l1ving/youtube-dl synced 2024-12-24 00:13:22 +08:00
youtube-dl/youtube_dl/extractor/youku.py
2013-11-03 14:06:47 +01:00

124 lines
4.1 KiB
Python

# coding: utf-8
import json
import math
import random
import re
import time
from .common import InfoExtractor
from ..utils import (
ExtractorError,
)
class YoukuIE(InfoExtractor):
_VALID_URL = r'(?:(?:http://)?(?:v|player)\.youku\.com/(?:v_show/id_|player\.php/sid/)|youku:)(?P<ID>[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')
if error_code:
# -8 means blocked outside China.
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