mirror of https://github.com/yt-dlp/yt-dlp.git
[ximalaya.com] Add VIP support, refine code
This commit is contained in:
xingchensong
parent
db245d0376
commit
e9f033fbfc
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@ -1,8 +1,10 @@
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import base64
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import math
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import time
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from .common import InfoExtractor
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from ..utils import InAdvancePagedList, float_or_none, int_or_none, str_or_none, traverse_obj, try_call
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from .videa import VideaIE
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from ..utils import InAdvancePagedList, str_or_none, traverse_obj, try_call
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class XimalayaBaseIE(InfoExtractor):
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@ -81,146 +83,26 @@ class XimalayaIE(XimalayaBaseIE):
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@staticmethod
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def _decrypt_filename(audio_info):
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seed = float_or_none(audio_info['seed'])
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seed = float(audio_info['seed'])
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file_id = audio_info['fileId']
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cgstr = ''
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key = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/\\:._-1234567890'
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for _ in range(len(key)):
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j = 211 * seed + 30031
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seed = float_or_none(int_or_none(j) % 65536)
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ran = seed / float_or_none(65536)
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r = int_or_none(ran * float_or_none(len(key)))
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seed = float(int(211 * seed + 30031) % 65536)
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r = int(seed / 65536 * len(key))
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cgstr += key[r]
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key = key.replace(key[r], '')
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strs = file_id.split('*')
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filename = ''
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for n in range(len(strs) - 1):
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if strs[n] != '':
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index = int_or_none(strs[n])
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filename += cgstr[index]
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if filename[0] != '/':
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parts = file_id.split('*')
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filename = ''.join(cgstr[int(part)] for part in parts if part.isdigit())
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if not filename.startswith('/'):
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filename = '/' + filename
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return filename
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@staticmethod
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def _decrypt_url_params(audio_info):
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def char_code_at(s: str, n: int) -> int:
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return ord(s[n]) if n < len(s) else 0
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def decrypt(e: str, t: list) -> str:
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r = list(range(256))
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a = 0
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s = ''
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for o in range(256):
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a = (a + r[o] + int_or_none(char_code_at(e, o % len(e)))) % 256
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r[o], r[a] = r[a], r[o]
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a, o = 0, 0
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for u in range(len(t)):
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o = (o + 1) % 256
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a = (a + r[o]) % 256
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r[o], r[a] = r[a], r[o]
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s += chr(t[u] ^ r[(r[o] + r[a]) % 256])
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return s
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def decrypt2(key: str, key2: list) -> str:
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n = []
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for r in range(len(key)):
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a = ord('a')
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if ord('a') <= ord(key[r]) <= ord('z'):
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a = ord(key[r]) - 97
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else:
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a = ord(key[r]) - 48 + 26
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for i in range(36):
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if key2[i] == a:
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a = i
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break
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if a > 25:
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n.append(chr(a - 26 + 48))
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else:
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n.append(chr(a + 97))
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return ''.join(n)
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def decrypt3(s: str) -> list:
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t = 0
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n = 0
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r = 0
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s_len = len(s)
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i = []
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o = [-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, 62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1,
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-1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
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17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28, 29, 30,
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31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
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51, -1, -1, -1, -1, -1]
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while r < s_len:
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t = o[char_code_at(s, r) & 255]
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r += 1
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while r < s_len and t == -1:
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t = o[char_code_at(s, r) & 255]
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r += 1
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if t == -1:
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break
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n = o[char_code_at(s, r) & 255]
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r += 1
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while r < s_len and n == -1:
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n = o[char_code_at(s, r) & 255]
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r += 1
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if t == -1:
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break
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i.append((t << 2) | ((n & 48) >> 4))
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t = int_or_none(char_code_at(s, r)) & 255
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r += 1
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if t == 61:
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return i
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t = o[t]
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while r < s_len and t == -1:
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t = int_or_none(char_code_at(s, r)) & 255
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r += 1
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if t == 61:
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return i
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t = o[t]
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if t == -1:
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break
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i.append(((n & 15) << 4) | ((t & 60) >> 2))
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n = int_or_none(char_code_at(s, r)) & 255
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r += 1
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if n == 61:
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return i
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n = o[n]
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while r < s_len and n == -1:
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n = int_or_none(char_code_at(s, r)) & 255
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r += 1
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if n == 61:
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return i
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n = o[n]
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if n == -1:
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break
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i.append(((t & 3) << 6) | n)
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return i
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o = 'g3utf1k6yxdwi0'
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u = [19, 1, 4, 7, 30, 14, 28, 8, 24, 17, 6, 35, 34, 16, 9, 10, 13, 22,
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32, 29, 31, 21, 18, 3, 2, 23, 25, 27, 11, 20, 5, 15, 12, 0, 33, 26]
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s1 = decrypt3(audio_info['ep'])
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s2 = decrypt(decrypt2('d' + o + '9', u), s1)
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ss = s2.split('-')
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sign = ss[1]
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token = ss[2]
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timestamp = ss[3]
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params = VideaIE.rc4(base64.b64decode(audio_info['ep']),
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'xkt3a41psizxrh9l').split('-')
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sign, token, timestamp = params[1], params[2], params[3]
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return sign, token, timestamp
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def _real_extract(self, url):
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@ -233,8 +115,8 @@ class XimalayaIE(XimalayaBaseIE):
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f'Downloading info json {audio_info_file}', 'Unable to download info file')
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# NOTE(xcsong): VIP-restricted audio
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if audio_info.get('is_paid', False):
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ts = int_or_none(time.time())
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if audio_info.get('is_paid'):
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ts = int(time.time())
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audio_info_file = f'{scheme}://mpay.ximalaya.com/mobile/track/pay/{audio_id}/{ts}?device=pc&isBackend=true&_={ts}'
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audio_info = self._download_json(
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audio_info_file, audio_id,
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