mirror of
https://github.com/l1ving/youtube-dl
synced 2024-11-27 13:42:51 +08:00
85 lines
2.5 KiB
Python
85 lines
2.5 KiB
Python
# encoding: utf-8
|
|
from __future__ import unicode_literals
|
|
|
|
import re
|
|
import base64
|
|
|
|
from .common import InfoExtractor
|
|
from ..utils import (
|
|
struct_unpack,
|
|
)
|
|
|
|
|
|
class RTVEALaCartaIE(InfoExtractor):
|
|
IE_NAME = 'rtve.es:alacarta'
|
|
IE_DESC = 'RTVE a la carta'
|
|
_VALID_URL = r'http://www\.rtve\.es/alacarta/videos/[^/]+/[^/]+/(?P<id>\d+)'
|
|
|
|
_TEST = {
|
|
'url': 'http://www.rtve.es/alacarta/videos/balonmano/o-swiss-cup-masculina-final-espana-suecia/2491869/',
|
|
'md5': '1d49b7e1ca7a7502c56a4bf1b60f1b43',
|
|
'info_dict': {
|
|
'id': '2491869',
|
|
'ext': 'mp4',
|
|
'title': 'Balonmano - Swiss Cup masculina. Final: España-Suecia',
|
|
},
|
|
}
|
|
|
|
def _decrypt_url(self, png):
|
|
encrypted_data = base64.b64decode(png)
|
|
text_index = encrypted_data.find(b'tEXt')
|
|
text_chunk = encrypted_data[text_index-4:]
|
|
length = struct_unpack('!I', text_chunk[:4])[0]
|
|
# Use bytearray to get integers when iterating in both python 2.x and 3.x
|
|
data = bytearray(text_chunk[8:8+length])
|
|
data = [chr(b) for b in data if b != 0]
|
|
hash_index = data.index('#')
|
|
alphabet_data = data[:hash_index]
|
|
url_data = data[hash_index+1:]
|
|
|
|
alphabet = []
|
|
e = 0
|
|
d = 0
|
|
for l in alphabet_data:
|
|
if d == 0:
|
|
alphabet.append(l)
|
|
d = e = (e + 1) % 4
|
|
else:
|
|
d -= 1
|
|
url = ''
|
|
f = 0
|
|
e = 3
|
|
b = 1
|
|
for letter in url_data:
|
|
if f == 0:
|
|
l = int(letter)*10
|
|
f = 1
|
|
else:
|
|
if e == 0:
|
|
l += int(letter)
|
|
url += alphabet[l]
|
|
e = (b + 3) % 4
|
|
f = 0
|
|
b += 1
|
|
else:
|
|
e -= 1
|
|
|
|
return url
|
|
|
|
def _real_extract(self, url):
|
|
mobj = re.match(self._VALID_URL, url)
|
|
video_id = mobj.group('id')
|
|
info = self._download_json(
|
|
'http://www.rtve.es/api/videos/%s/config/alacarta_videos.json' % video_id,
|
|
video_id)['page']['items'][0]
|
|
png_url = 'http://www.rtve.es/ztnr/movil/thumbnail/default/videos/%s.png' % video_id
|
|
png = self._download_webpage(png_url, video_id, 'Downloading url information')
|
|
video_url = self._decrypt_url(png)
|
|
|
|
return {
|
|
'id': video_id,
|
|
'title': info['title'],
|
|
'url': video_url,
|
|
'thumbnail': info['image'],
|
|
}
|