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import sys
import random
import struct
import time
import binascii
import hashlib
tlv_types = {
"SignedBlock": 0x14,
"DeviceLicenseExpirationTime": 0x1f,
"PollingTime": 0xd3,
"LicenseExpirationTime": 0x20,
"ClepSignState": 0x12d,
"LicenseDeviceId": 0xd2,
"UnkBlock1": 0xd1,
"LicenseId": 0xcb,
"HardwareId": 0xd0,
"UnkBlock2": 0xcf,
"UplinkKeyId": 0x18,
"UnkBlock3": 0x0,
"UnkBlock4": 0x12e,
"UnkBlock5": 0xd5,
"PackageFullName": 0xce,
"LicenseInformation": 0xc9,
"PackedContentKeys": 0xca,
"EncryptedDeviceKey": 0x1,
"DeviceLicenseDeviceId": 0x2,
"LicenseEntryIds": 0xcd,
"LicensePolicies": 0xd4,
"KeyholderPublicSigningKey": 0xdc,
"KeyholderPolicies": 0xdd,
"KeyholderKeyLicenseId": 0xde,
"SignatureBlock": 0xcc,
};
def encode_tlvblock(type, data):
return struct.pack("<II", tlv_types[type], len(data)) + data
extradata = None
lic_file = sys.argv[1]
new_pfn = sys.argv[2].lower()
out_lic = sys.argv[3]
if len(sys.argv) >= 5:
extra_file = sys.argv[4]
with open(extra_file, "rb") as f:
extradata = f.read()
with open(lic_file, "rb") as f:
data = f.read()
data += encode_tlvblock("PackageFullName", new_pfn.encode("utf-16-le") + b"\x00\x00")
basic_pol = 0x0a
if "addon" in new_pfn:
basic_pol = 0x00
lic_info = struct.pack("<HHIBB", 5, 1, int(time.time()), basic_pol, 1)
data += encode_tlvblock("LicenseInformation", lic_info)
data += encode_tlvblock("LicenseId", random.randbytes(16))
data += encode_tlvblock("LicenseEntryIds", b"\x01\x00" + hashlib.sha256(new_pfn.encode("utf-16-le")).digest())
data += encode_tlvblock("LicenseExpirationTime", b"\x00\x00\x00\x00")
if extradata:
data += extradata
with open(out_lic, "wb") as f:
f.write(data)
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