43 lines
1.7 KiB
Python
43 lines
1.7 KiB
Python
import binascii
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from Cryptodome.Cipher import Blowfish, AES
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from Cryptodome.Hash import MD5
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def _md5(data):
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h = MD5.new()
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h.update(str.encode(data) if isinstance(data, str) else data)
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return h.hexdigest()
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def generateBlowfishKey(trackId):
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SECRET = 'g4el58wc0zvf9na1'
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idMd5 = _md5(trackId)
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bfKey = ""
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for i in range(16):
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bfKey += chr(ord(idMd5[i]) ^ ord(idMd5[i + 16]) ^ ord(SECRET[i]))
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return bfKey
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def generateStreamPath(sng_id, md5, media_version, format):
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urlPart = b'\xa4'.join(
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[str.encode(md5), str.encode(str(format)), str.encode(str(sng_id)), str.encode(str(media_version))])
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md5val = _md5(urlPart)
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step2 = str.encode(md5val) + b'\xa4' + urlPart + b'\xa4'
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step2 = step2 + (b'.' * (16 - (len(step2) % 16)))
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urlPart = binascii.hexlify(AES.new(b'jo6aey6haid2Teih', AES.MODE_ECB).encrypt(step2))
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return urlPart.decode("utf-8")
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def reverseStreamPath(urlPart):
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step2 = AES.new(b'jo6aey6haid2Teih', AES.MODE_ECB).decrypt(binascii.unhexlify(urlPart.encode("utf-8")))
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(md5val, md5, format, sng_id, media_version, _) = step2.split(b'\xa4')
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return (sng_id.decode('utf-8'), md5.decode('utf-8'), media_version.decode('utf-8'), format.decode('utf-8'))
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def generateStreamURL(sng_id, md5, media_version, format):
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urlPart = generateStreamPath(sng_id, md5, media_version, format)
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return "https://e-cdns-proxy-" + md5[0] + ".dzcdn.net/mobile/1/" + urlPart
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def generateUnencryptedStreamURL(sng_id, md5, media_version, format):
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urlPart = generateStreamPath(sng_id, md5, media_version, format)
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return "https://e-cdns-proxy-" + md5[0] + ".dzcdn.net/api/1/" + urlPart
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def reverseStreamURL(url):
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urlPart = url[url.find("/1/")+3:]
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return generateStreamPath(urlPart)
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