- def construct_video_urls(self, data):
- # get sid, token
- def yk_t(s1, s2):
- ls = list(range(256))
- t = 0
- for i in range(256):
- t = (t + ls[i] + compat_ord(s1[i % len(s1)])) % 256
- ls[i], ls[t] = ls[t], ls[i]
- s = bytearray()
- x, y = 0, 0
- for i in range(len(s2)):
- y = (y + 1) % 256
- x = (x + ls[y]) % 256
- ls[x], ls[y] = ls[y], ls[x]
- s.append(compat_ord(s2[i]) ^ ls[(ls[x] + ls[y]) % 256])
- return bytes(s)
-
- sid, token = yk_t(
- b'becaf9be', base64.b64decode(data['security']['encrypt_string'].encode('ascii'))
- ).decode('ascii').split('_')
-
- # get oip
- oip = data['security']['ip']
-
- fileid_dict = {}
- for stream in data['stream']:
- if stream.get('channel_type') == 'tail':
- continue
- format = stream.get('stream_type')
- fileid = try_get(
- stream, lambda x: x['segs'][0]['fileid'],
- compat_str) or stream['stream_fileid']
- fileid_dict[format] = fileid
-
- def get_fileid(format, n):
- number = hex(int(str(n), 10))[2:].upper()
- if len(number) == 1:
- number = '0' + number
- streamfileids = fileid_dict[format]
- fileid = streamfileids[0:8] + number + streamfileids[10:]
- return fileid
-
- # get ep
- def generate_ep(format, n):
- fileid = get_fileid(format, n)
- ep_t = yk_t(
- b'bf7e5f01',
- ('%s_%s_%s' % (sid, fileid, token)).encode('ascii')
- )
- ep = base64.b64encode(ep_t).decode('ascii')
- return ep
-
- # generate video_urls
- video_urls_dict = {}
- for stream in data['stream']:
- if stream.get('channel_type') == 'tail':
- continue
- format = stream.get('stream_type')
- video_urls = []
- for dt in stream['segs']:
- n = str(stream['segs'].index(dt))
- param = {
- 'K': dt['key'],
- 'hd': self.get_hd(format),
- 'myp': 0,
- 'ypp': 0,
- 'ctype': 12,
- 'ev': 1,
- 'token': token,
- 'oip': oip,
- 'ep': generate_ep(format, n)
- }
- video_url = \
- 'http://k.youku.com/player/getFlvPath/' + \
- 'sid/' + sid + \
- '_00' + \
- '/st/' + self.parse_ext_l(format) + \
- '/fileid/' + get_fileid(format, n) + '?' + \
- compat_urllib_parse_urlencode(param)
- video_urls.append(video_url)
- video_urls_dict[format] = video_urls
-
- return video_urls_dict
-