58 lines
2.2 KiB
Python
58 lines
2.2 KiB
Python
import pywidevine.downloader.wvdownloaderconfig as wvdl_cfg
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import subprocess
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class WvDecryptConfig(object):
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def __init__(self, filename, tracktype, trackno, license, init_data_b64, cert_data_b64=None):
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self.filename = filename
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self.tracktype = tracktype
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self.trackno = trackno
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self.init_data_b64 = init_data_b64
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self.license = license
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if cert_data_b64 is not None:
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self.server_cert_required = True
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self.cert_data_b64 = cert_data_b64
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else:
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self.server_cert_required = False
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def get_filename(self, unformatted_filename):
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return unformatted_filename.format(filename=self.filename, track_type=self.tracktype, track_no=self.trackno)
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def find_str(self, s, char):
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index = 0
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if char in s:
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c = char[0]
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for ch in s:
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if ch == c and s[index:index + len(char)] == char:
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return index
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index += 1
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return -1
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def get_kid(self, filename):
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mp4dump = subprocess.Popen([wvdl_cfg.MP4DUMP_BINARY_PATH, filename], stdout=subprocess.PIPE)
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mp4dump = str(mp4dump.stdout.read())
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A = self.find_str(mp4dump, 'default_KID')
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KID = mp4dump[A:A + 63].replace('default_KID = ', '').replace('[', '').replace(']', '').replace(' ', '')
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KID = KID.upper()
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KID_video = KID[0:8] + '-' + KID[8:12] + '-' + KID[12:16] + '-' + KID[16:20] + '-' + KID[20:32]
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if KID == '':
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KID = 'nothing'
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return KID.lower()
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def build_commandline_list(self, keys):
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KID_file = self.get_kid(self.get_filename(wvdl_cfg.ENCRYPTED_FILENAME))
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print(KID_file)
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commandline = [wvdl_cfg.MP4DECRYPT_BINARY_PATH]
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for key in keys:
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if key.type == 'CONTENT' and key.kid.hex() == KID_file:
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print("OK")
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commandline.append('--key')
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#key.kid.hex()
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#2 main high 1 hdr dv hevc
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commandline.append('{}:{}'.format('2', key.key.hex()))
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commandline.append(self.get_filename(wvdl_cfg.ENCRYPTED_FILENAME))
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commandline.append(self.get_filename(wvdl_cfg.DECRYPTED_FILENAME))
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return commandline
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