import binascii import os import base64 from google.protobuf import descriptor as _descriptor, descriptor_pool as _descriptor_pool, symbol_database as _symbol_database from google.protobuf.internal import builder as _builder import os import time import binascii import logging import subprocess import re import base64 import requests from base64 import b64encode from google.protobuf.message import DecodeError from google.protobuf import text_format import xmltodict import base64 import uuid import requests from Cryptodome.Random import get_random_bytes from Cryptodome.Random import random from Cryptodome.Cipher import PKCS1_OAEP, AES from Cryptodome.Hash import CMAC, SHA256, HMAC, SHA1 from Cryptodome.PublicKey import RSA from Cryptodome.Signature import pss from Cryptodome.Util import Padding import logging from bs4 import BeautifulSoup _sym_db = _symbol_database.Default() DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile( 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_builder.BuildTopDescriptorsAndMessages(DESCRIPTOR, 'wv_proto2_pb2', globals()) if _descriptor._USE_C_DESCRIPTORS == False: DESCRIPTOR._options = None _LICENSETYPE._serialized_start = 8339 _LICENSETYPE._serialized_end = 8388 _PROTOCOLVERSION._serialized_start = 8390 _PROTOCOLVERSION._serialized_end = 8420 _CLIENTIDENTIFICATION._serialized_start = 20 _CLIENTIDENTIFICATION._serialized_end = 763 _CLIENTIDENTIFICATION_NAMEVALUE._serialized_start = 343 _CLIENTIDENTIFICATION_NAMEVALUE._serialized_end = 383 _CLIENTIDENTIFICATION_CLIENTCAPABILITIES._serialized_start = 386 _CLIENTIDENTIFICATION_CLIENTCAPABILITIES._serialized_end = 678 _CLIENTIDENTIFICATION_CLIENTCAPABILITIES_HDCPVERSION._serialized_start = 594 _CLIENTIDENTIFICATION_CLIENTCAPABILITIES_HDCPVERSION._serialized_end = 678 _CLIENTIDENTIFICATION_TOKENTYPE._serialized_start = 680 _CLIENTIDENTIFICATION_TOKENTYPE._serialized_end = 763 _DEVICECERTIFICATE._serialized_start = 766 _DEVICECERTIFICATE._serialized_end = 1049 _DEVICECERTIFICATE_CERTIFICATETYPE._serialized_start = 974 _DEVICECERTIFICATE_CERTIFICATETYPE._serialized_end = 1049 _DEVICECERTIFICATESTATUS._serialized_start = 1052 _DEVICECERTIFICATESTATUS._serialized_end = 1248 _DEVICECERTIFICATESTATUS_CERTIFICATESTATUS._serialized_start = 1205 _DEVICECERTIFICATESTATUS_CERTIFICATESTATUS._serialized_end = 1248 _DEVICECERTIFICATESTATUSLIST._serialized_start = 1250 _DEVICECERTIFICATESTATUSLIST._serialized_end = 1361 _ENCRYPTEDCLIENTIDENTIFICATION._serialized_start = 1364 _ENCRYPTEDCLIENTIDENTIFICATION._serialized_end = 1539 _LICENSEIDENTIFICATION._serialized_start = 1542 _LICENSEIDENTIFICATION._serialized_end = 1698 _LICENSE._serialized_start = 1701 _LICENSE._serialized_end = 3526 _LICENSE_POLICY._serialized_start = 1935 _LICENSE_POLICY._serialized_end = 2250 _LICENSE_KEYCONTAINER._serialized_start = 2253 _LICENSE_KEYCONTAINER._serialized_end = 3526 _LICENSE_KEYCONTAINER_OUTPUTPROTECTION._serialized_start = 2774 _LICENSE_KEYCONTAINER_OUTPUTPROTECTION._serialized_end = 2993 _LICENSE_KEYCONTAINER_OUTPUTPROTECTION_CGMS._serialized_start = 2926 _LICENSE_KEYCONTAINER_OUTPUTPROTECTION_CGMS._serialized_end = 2993 _LICENSE_KEYCONTAINER_KEYCONTROL._serialized_start = 2995 _LICENSE_KEYCONTAINER_KEYCONTROL._serialized_end = 3044 _LICENSE_KEYCONTAINER_OPERATORSESSIONKEYPERMISSIONS._serialized_start = 3046 _LICENSE_KEYCONTAINER_OPERATORSESSIONKEYPERMISSIONS._serialized_end = 3170 _LICENSE_KEYCONTAINER_VIDEORESOLUTIONCONSTRAINT._serialized_start = 3173 _LICENSE_KEYCONTAINER_VIDEORESOLUTIONCONSTRAINT._serialized_end = 3326 _LICENSE_KEYCONTAINER_KEYTYPE._serialized_start = 3328 _LICENSE_KEYCONTAINER_KEYTYPE._serialized_end = 3402 _LICENSE_KEYCONTAINER_SECURITYLEVEL._serialized_start = 3404 _LICENSE_KEYCONTAINER_SECURITYLEVEL._serialized_end = 3526 _LICENSEERROR._serialized_start = 3529 _LICENSEERROR._serialized_end = 3681 _LICENSEERROR_ERROR._serialized_start = 3585 _LICENSEERROR_ERROR._serialized_end = 3681 _LICENSEREQUEST._serialized_start = 3684 _LICENSEREQUEST._serialized_end = 4624 _LICENSEREQUEST_CONTENTIDENTIFICATION._serialized_start = 4028 _LICENSEREQUEST_CONTENTIDENTIFICATION._serialized_end = 4574 _LICENSEREQUEST_CONTENTIDENTIFICATION_CENC._serialized_start = 4245 _LICENSEREQUEST_CONTENTIDENTIFICATION_CENC._serialized_end = 4340 _LICENSEREQUEST_CONTENTIDENTIFICATION_WEBM._serialized_start = 4342 _LICENSEREQUEST_CONTENTIDENTIFICATION_WEBM._serialized_end = 4418 _LICENSEREQUEST_CONTENTIDENTIFICATION_EXISTINGLICENSE._serialized_start = 4421 _LICENSEREQUEST_CONTENTIDENTIFICATION_EXISTINGLICENSE._serialized_end = 4574 _LICENSEREQUEST_REQUESTTYPE._serialized_start = 4576 _LICENSEREQUEST_REQUESTTYPE._serialized_end = 4624 _LICENSEREQUESTRAW._serialized_start = 4627 _LICENSEREQUESTRAW._serialized_end = 5564 _LICENSEREQUESTRAW_CONTENTIDENTIFICATION._serialized_start = 4980 _LICENSEREQUESTRAW_CONTENTIDENTIFICATION._serialized_end = 5514 _LICENSEREQUESTRAW_CONTENTIDENTIFICATION_CENC._serialized_start = 5206 _LICENSEREQUESTRAW_CONTENTIDENTIFICATION_CENC._serialized_end = 5280 _LICENSEREQUESTRAW_CONTENTIDENTIFICATION_WEBM._serialized_start = 4342 _LICENSEREQUESTRAW_CONTENTIDENTIFICATION_WEBM._serialized_end = 4418 _LICENSEREQUESTRAW_CONTENTIDENTIFICATION_EXISTINGLICENSE._serialized_start = 4421 _LICENSEREQUESTRAW_CONTENTIDENTIFICATION_EXISTINGLICENSE._serialized_end = 4574 _LICENSEREQUESTRAW_REQUESTTYPE._serialized_start = 4576 _LICENSEREQUESTRAW_REQUESTTYPE._serialized_end = 4624 _PROVISIONEDDEVICEINFO._serialized_start = 5567 _PROVISIONEDDEVICEINFO._serialized_end = 5861 _PROVISIONEDDEVICEINFO_WVSECURITYLEVEL._serialized_start = 5782 _PROVISIONEDDEVICEINFO_WVSECURITYLEVEL._serialized_end = 5861 _PROVISIONINGOPTIONS._serialized_start = 5863 _PROVISIONINGOPTIONS._serialized_end = 5884 _PROVISIONINGREQUEST._serialized_start = 5886 _PROVISIONINGREQUEST._serialized_end = 5907 _PROVISIONINGRESPONSE._serialized_start = 5909 _PROVISIONINGRESPONSE._serialized_end = 5931 _REMOTEATTESTATION._serialized_start = 5933 _REMOTEATTESTATION._serialized_end = 6038 _SESSIONINIT._serialized_start = 6040 _SESSIONINIT._serialized_end = 6053 _SESSIONSTATE._serialized_start = 6055 _SESSIONSTATE._serialized_end = 6069 _SIGNEDCERTIFICATESTATUSLIST._serialized_start = 6071 _SIGNEDCERTIFICATESTATUSLIST._serialized_end = 6100 _SIGNEDDEVICECERTIFICATE._serialized_start = 6103 _SIGNEDDEVICECERTIFICATE._serialized_end = 6237 _SIGNEDPROVISIONINGMESSAGE._serialized_start = 6239 _SIGNEDPROVISIONINGMESSAGE._serialized_end = 6266 _SIGNEDMESSAGE._serialized_start = 6269 _SIGNEDMESSAGE._serialized_end = 6552 _SIGNEDMESSAGE_MESSAGETYPE._serialized_start = 6427 _SIGNEDMESSAGE_MESSAGETYPE._serialized_end = 6552 _WIDEVINECENCHEADER._serialized_start = 6555 _WIDEVINECENCHEADER._serialized_end = 6880 _WIDEVINECENCHEADER_ALGORITHM._serialized_start = 6840 _WIDEVINECENCHEADER_ALGORITHM._serialized_end = 6880 _SIGNEDLICENSEREQUEST._serialized_start = 6883 _SIGNEDLICENSEREQUEST._serialized_end = 7197 _SIGNEDLICENSEREQUEST_MESSAGETYPE._serialized_start = 6427 _SIGNEDLICENSEREQUEST_MESSAGETYPE._serialized_end = 6552 _SIGNEDLICENSEREQUESTRAW._serialized_start = 7200 _SIGNEDLICENSEREQUESTRAW._serialized_end = 7523 _SIGNEDLICENSEREQUESTRAW_MESSAGETYPE._serialized_start = 6427 _SIGNEDLICENSEREQUESTRAW_MESSAGETYPE._serialized_end = 6552 _SIGNEDLICENSE._serialized_start = 7526 _SIGNEDLICENSE._serialized_end = 7819 _SIGNEDLICENSE_MESSAGETYPE._serialized_start = 6427 _SIGNEDLICENSE_MESSAGETYPE._serialized_end = 6552 _SIGNEDSERVICECERTIFICATE._serialized_start = 7822 _SIGNEDSERVICECERTIFICATE._serialized_end = 8153 _SIGNEDSERVICECERTIFICATE_MESSAGETYPE._serialized_start = 6427 _SIGNEDSERVICECERTIFICATE_MESSAGETYPE._serialized_end = 6552 _FILEHASHES._serialized_start = 8156 _FILEHASHES._serialized_end = 8337 _FILEHASHES_SIGNATURE._serialized_start = 8229 _FILEHASHES_SIGNATURE._serialized_end = 8337 # @@protoc_insertion_point(module_scope) class Session: def __init__(self, session_id, init_data, device_config, offline): self.session_id = session_id self.init_data = init_data self.offline = offline self.device_config = device_config self.device_key = None self.session_key = None self.derived_keys = { 'enc': None, 'auth_1': None, 'auth_2': None } self.license_request = None self.license = None self.service_certificate = None self.privacy_mode = False self.keys = [] class Key: def __init__(self, kid, type, key, permissions=[]): self.kid = kid self.type = type self.key = key self.permissions = permissions def __repr__(self): if self.type == "OPERATOR_SESSION": return "key(kid={}, type={}, key={}, permissions={})".format(self.kid, self.type, binascii.hexlify(self.key), self.permissions) else: return "key(kid={}, type={}, key={})".format(self.kid, self.type, binascii.hexlify(self.key)) try: from google.protobuf.internal.decoder import _DecodeVarint as _di except ImportError: def LEB128_decode(buffer, pos, limit=64): result = 0 shift = 0 while True: b = buffer[pos] pos += 1 result |= ((b & 0x7F) << shift) if not (b & 0x80): return (result, pos) shift += 7 if shift > limit: raise Exception("integer too large, shift: {}".format(shift)) _di = LEB128_decode class FromFileMixin: @classmethod def from_file(cls, filename): with open(filename, "rb") as f: return cls(f.read()) class VariableReader(FromFileMixin): def __init__(self, buf): self.buf = buf self.pos = 0 self.size = len(buf) def read_int(self): (val, nextpos) = _di(self.buf, self.pos) self.pos = nextpos return val def read_bytes_raw(self, size): b = self.buf[self.pos:self.pos+size] self.pos += size return b def read_bytes(self): size = self.read_int() return self.read_bytes_raw(size) def is_end(self): return (self.size == self.pos) class TaggedReader(VariableReader): def read_tag(self): return (self.read_int(), self.read_bytes()) def read_all_tags(self, max_tag=3): tags = {} while (not self.is_end()): (tag, bytes) = self.read_tag() if (tag > max_tag): raise IndexError("tag out of bound: got {}, max {}".format(tag, max_tag)) tags[tag] = bytes return tags class WideVineSignatureReader(FromFileMixin): SIGNER_TAG = 1 SIGNATURE_TAG = 2 ISMAINEXE_TAG = 3 def __init__(self, buf): reader = TaggedReader(buf) self.version = reader.read_int() if (self.version != 0): raise Exception("Unsupported signature format version {}".format(self.version)) self.tags = reader.read_all_tags() self.signer = self.tags[self.SIGNER_TAG] self.signature = self.tags[self.SIGNATURE_TAG] extra = self.tags[self.ISMAINEXE_TAG] if (len(extra) != 1 or (extra[0] > 1)): raise Exception("Unexpected 'ismainexe' field value (not '\\x00' or '\\x01'), please check: {0}".format(extra)) self.mainexe = bool(extra[0]) @classmethod def get_tags(cls, filename): return cls.from_file(filename).tags device_android_generic = { 'name': 'android_generic', 'description': 'android studio cdm', 'security_level': 3, 'session_id_type': 'android', 'private_key_available': True, 'vmp': False, 'send_key_control_nonce': True } devices_available = [device_android_generic] FILES_FOLDER = 'devices' class DeviceConfig: def __init__(self, device): self.device_name = device['name'] self.description = device['description'] self.security_level = device['security_level'] self.session_id_type = device['session_id_type'] self.private_key_available = device['private_key_available'] self.vmp = device['vmp'] self.send_key_control_nonce = device['send_key_control_nonce'] if 'keybox_filename' in device: self.keybox_filename = os.path.join(os.path.dirname(__file__), FILES_FOLDER, device['name'], device['keybox_filename']) else: self.keybox_filename = os.path.join(os.path.dirname(__file__), FILES_FOLDER, device['name'], 'keybox') if 'device_cert_filename' in device: self.device_cert_filename = os.path.join(os.path.dirname(__file__), FILES_FOLDER, device['name'], device['device_cert_filename']) else: self.device_cert_filename = os.path.join(os.path.dirname(__file__), FILES_FOLDER, device['name'], 'device_cert') if 'device_private_key_filename' in device: self.device_private_key_filename = os.path.join(os.path.dirname(__file__), FILES_FOLDER, device['name'], device['device_private_key_filename']) else: self.device_private_key_filename = os.path.join(os.path.dirname(__file__), FILES_FOLDER, device['name'], 'device_private_key') if 'device_client_id_blob_filename' in device: self.device_client_id_blob_filename = os.path.join(os.path.dirname(__file__), FILES_FOLDER, device['name'], device['device_client_id_blob_filename']) else: self.device_client_id_blob_filename = os.path.join(os.path.dirname(__file__), FILES_FOLDER, device['name'], 'device_client_id_blob') if 'device_vmp_blob_filename' in device: self.device_vmp_blob_filename = os.path.join(os.path.dirname(__file__), FILES_FOLDER, device['name'], device['device_vmp_blob_filename']) else: self.device_vmp_blob_filename = os.path.join(os.path.dirname(__file__), FILES_FOLDER, device['name'], 'device_vmp_blob') def __repr__(self): return "DeviceConfig(name={}, description={}, security_level={}, session_id_type={}, private_key_available={}, vmp={})".format(self.device_name, self.description, self.security_level, self.session_id_type, self.private_key_available, self.vmp) class Cdm: def __init__(self): self.logger = logging.getLogger(__name__) self.sessions = {} def open_session(self, init_data_b64, device, raw_init_data = None, offline=False): if device.session_id_type == 'android': # format: 16 random hexdigits, 2 digit counter, 14 0s rand_ascii = ''.join(random.choice('ABCDEF0123456789') for _ in range(16)) counter = '01' # this resets regularly so its fine to use 01 rest = '00000000000000' session_id = rand_ascii + counter + rest session_id = session_id.encode('ascii') elif device.session_id_type == 'chrome': rand_bytes = get_random_bytes(16) session_id = rand_bytes else: # other formats NYI return 1 if raw_init_data and isinstance(raw_init_data, (bytes, bytearray)): # used for NF key exchange, where they don't provide a valid PSSH init_data = raw_init_data self.raw_pssh = True else: init_data = self._parse_init_data(init_data_b64) self.raw_pssh = False if init_data: new_session = Session(session_id, init_data, device, offline) else: return 1 self.sessions[session_id] = new_session return session_id def _parse_init_data(self, init_data_b64): parsed_init_data = WidevineCencHeader() try: parsed_init_data.ParseFromString(base64.b64decode(init_data_b64)[32:]) except DecodeError: try: id_bytes = parsed_init_data.ParseFromString(base64.b64decode(init_data_b64)[32:]) except DecodeError: return None return parsed_init_data def close_session(self, session_id): if session_id in self.sessions: self.sessions.pop(session_id) return 0 else: return 1 def set_service_certificate(self, session_id, cert_b64): if session_id not in self.sessions: return 1 session = self.sessions[session_id] message = SignedMessage() try: message.ParseFromString(base64.b64decode(cert_b64)) except DecodeError: self.logger.error("failed to parse cert as SignedMessage") service_certificate = SignedDeviceCertificate() if message.Type: try: service_certificate.ParseFromString(message.Msg) except DecodeError: return 1 else: try: service_certificate.ParseFromString(base64.b64decode(cert_b64)) except DecodeError: return 1 session.service_certificate = service_certificate session.privacy_mode = True return 0 def get_license_request(self, session_id): if session_id not in self.sessions: return 1 session = self.sessions[session_id] # raw pssh will be treated as bytes and not parsed if self.raw_pssh: license_request = SignedLicenseRequestRaw() else: license_request = SignedLicenseRequest() client_id = ClientIdentification() if not os.path.exists(session.device_config.device_client_id_blob_filename): return 1 with open(session.device_config.device_client_id_blob_filename, "rb") as f: try: cid_bytes = client_id.ParseFromString(f.read()) except DecodeError: return 1 if not self.raw_pssh: license_request.Type = SignedLicenseRequest.MessageType.Value('LICENSE_REQUEST') license_request.Msg.ContentId.CencId.Pssh.CopyFrom(session.init_data) else: license_request.Type = SignedLicenseRequestRaw.MessageType.Value('LICENSE_REQUEST') license_request.Msg.ContentId.CencId.Pssh = session.init_data # bytes if session.offline: license_type = LicenseType.Value('OFFLINE') else: license_type = LicenseType.Value('DEFAULT') license_request.Msg.ContentId.CencId.LicenseType = license_type license_request.Msg.ContentId.CencId.RequestId = session_id license_request.Msg.Type = LicenseRequest.RequestType.Value('NEW') license_request.Msg.RequestTime = int(time.time()) license_request.Msg.ProtocolVersion = ProtocolVersion.Value('CURRENT') if session.device_config.send_key_control_nonce: license_request.Msg.KeyControlNonce = random.randrange(1, 2**31) if session.privacy_mode: if session.device_config.vmp: vmp_hashes = FileHashes() with open(session.device_config.device_vmp_blob_filename, "rb") as f: try: vmp_bytes = vmp_hashes.ParseFromString(f.read()) except DecodeError: return 1 client_id._FileHashes.CopyFrom(vmp_hashes) cid_aes_key = get_random_bytes(16) cid_iv = get_random_bytes(16) cid_cipher = AES.new(cid_aes_key, AES.MODE_CBC, cid_iv) encrypted_client_id = cid_cipher.encrypt(Padding.pad(client_id.SerializeToString(), 16)) service_public_key = RSA.importKey(session.service_certificate._DeviceCertificate.PublicKey) service_cipher = PKCS1_OAEP.new(service_public_key) encrypted_cid_key = service_cipher.encrypt(cid_aes_key) encrypted_client_id_proto = EncryptedClientIdentification() encrypted_client_id_proto.ServiceId = session.service_certificate._DeviceCertificate.ServiceId encrypted_client_id_proto.ServiceCertificateSerialNumber = session.service_certificate._DeviceCertificate.SerialNumber encrypted_client_id_proto.EncryptedClientId = encrypted_client_id encrypted_client_id_proto.EncryptedClientIdIv = cid_iv encrypted_client_id_proto.EncryptedPrivacyKey = encrypted_cid_key license_request.Msg.EncryptedClientId.CopyFrom(encrypted_client_id_proto) else: license_request.Msg.ClientId.CopyFrom(client_id) if session.device_config.private_key_available: key = RSA.importKey(open(session.device_config.device_private_key_filename).read()) session.device_key = key else: return 1 hash = SHA1.new(license_request.Msg.SerializeToString()) signature = pss.new(key).sign(hash) license_request.Signature = signature session.license_request = license_request return license_request.SerializeToString() def provide_license(self, session_id, license_b64): if session_id not in self.sessions: return 1 session = self.sessions[session_id] if not session.license_request: return 1 license = SignedLicense() try: license.ParseFromString(base64.b64decode(license_b64)) except DecodeError: self.logger.error("unable to parse license - check protobufs") return 1 session.license = license oaep_cipher = PKCS1_OAEP.new(session.device_key) session.session_key = oaep_cipher.decrypt(license.SessionKey) lic_req_msg = session.license_request.Msg.SerializeToString() enc_key_base = b"ENCRYPTION\000" + lic_req_msg + b"\0\0\0\x80" auth_key_base = b"AUTHENTICATION\0" + lic_req_msg + b"\0\0\2\0" enc_key = b"\x01" + enc_key_base auth_key_1 = b"\x01" + auth_key_base auth_key_2 = b"\x02" + auth_key_base auth_key_3 = b"\x03" + auth_key_base auth_key_4 = b"\x04" + auth_key_base cmac_obj = CMAC.new(session.session_key, ciphermod=AES) cmac_obj.update(enc_key) enc_cmac_key = cmac_obj.digest() cmac_obj = CMAC.new(session.session_key, ciphermod=AES) cmac_obj.update(auth_key_1) auth_cmac_key_1 = cmac_obj.digest() cmac_obj = CMAC.new(session.session_key, ciphermod=AES) cmac_obj.update(auth_key_2) auth_cmac_key_2 = cmac_obj.digest() cmac_obj = CMAC.new(session.session_key, ciphermod=AES) cmac_obj.update(auth_key_3) auth_cmac_key_3 = cmac_obj.digest() cmac_obj = CMAC.new(session.session_key, ciphermod=AES) cmac_obj.update(auth_key_4) auth_cmac_key_4 = cmac_obj.digest() auth_cmac_combined_1 = auth_cmac_key_1 + auth_cmac_key_2 auth_cmac_combined_2 = auth_cmac_key_3 + auth_cmac_key_4 session.derived_keys['enc'] = enc_cmac_key session.derived_keys['auth_1'] = auth_cmac_combined_1 session.derived_keys['auth_2'] = auth_cmac_combined_2 lic_hmac = HMAC.new(session.derived_keys['auth_1'], digestmod=SHA256) lic_hmac.update(license.Msg.SerializeToString()) if lic_hmac.digest() != license.Signature: with open("original_lic.bin", "wb") as f: f.write(base64.b64decode(license_b64)) with open("parsed_lic.bin", "wb") as f: f.write(license.SerializeToString()) for key in license.Msg.Key: if key.Id: key_id = key.Id else: key_id = License.KeyContainer.KeyType.Name(key.Type).encode('utf-8') encrypted_key = key.Key iv = key.Iv type = License.KeyContainer.KeyType.Name(key.Type) cipher = AES.new(session.derived_keys['enc'], AES.MODE_CBC, iv=iv) decrypted_key = cipher.decrypt(encrypted_key) if type == "OPERATOR_SESSION": permissions = [] perms = key._OperatorSessionKeyPermissions for (descriptor, value) in perms.ListFields(): if value == 1: permissions.append(descriptor.name) print(permissions) else: permissions = [] session.keys.append(Key(key_id, type, Padding.unpad(decrypted_key, 16), permissions)) return 0 def get_keys(self, session_id): if session_id in self.sessions: return self.sessions[session_id].keys class WvDecrypt(object): WV_SYSTEM_ID = [ 237, 239, 139, 169, 121, 214, 74, 206, 163, 200, 39, 220, 213, 29, 33, 237] def __init__(self, init_data_b64, cert_data_b64, device): self.init_data_b64 = init_data_b64 self.cert_data_b64 = cert_data_b64 self.device = device self.cdm = Cdm() def check_pssh(pssh_b64): pssh = base64.b64decode(pssh_b64) if not pssh[12:28] == bytes(self.WV_SYSTEM_ID): new_pssh = bytearray([0, 0, 0]) new_pssh.append(32 + len(pssh)) new_pssh[4:] = bytearray(b'pssh') new_pssh[8:] = [0, 0, 0, 0] new_pssh[13:] = self.WV_SYSTEM_ID new_pssh[29:] = [0, 0, 0, 0] new_pssh[31] = len(pssh) new_pssh[32:] = pssh return base64.b64encode(new_pssh) else: return pssh_b64 self.session = self.cdm.open_session(check_pssh(self.init_data_b64), DeviceConfig(self.device)) if self.cert_data_b64: self.cdm.set_service_certificate(self.session, self.cert_data_b64) def log_message(self, msg): return '{}'.format(msg) def start_process(self): keyswvdecrypt = [] try: for key in self.cdm.get_keys(self.session): if key.type == 'CONTENT': keyswvdecrypt.append(self.log_message('{}:{}'.format(key.kid.hex(), key.key.hex()))) except Exception: return ( False, keyswvdecrypt) else: return ( True, keyswvdecrypt) def get_challenge(self): return self.cdm.get_license_request(self.session) def update_license(self, license_b64): self.cdm.provide_license(self.session, license_b64) return True class PsshExtractor: def __init__(self, response_text): self.response_text = response_text def extract_pssh(self): pssh_match = re.search(r'.*?(.*?)', self.response_text, re.DOTALL) if pssh_match: return pssh_match.group(1) else: cenc_default_kid_match = re.search(r'cenc:default_KID="([^"]+)"', self.response_text) if cenc_default_kid_match: kid = cenc_default_kid_match.group(1) array_of_bytes = bytearray(b'\x00\x00\x002pssh\x00\x00\x00\x00') array_of_bytes.extend(bytes.fromhex("edef8ba979d64acea3c827dcd51d21ed")) array_of_bytes.extend(b'\x00\x00\x00\x12\x12\x10') array_of_bytes.extend(bytes.fromhex(str(kid).replace("-", ""))) pssh = base64.b64encode(bytes.fromhex(array_of_bytes.hex())).decode("utf-8") return pssh else: return None class KeyExtractor: def __init__(self, pssh_value, cert_b64, license_url, headers): self.pssh_value = pssh_value self.cert_b64 = cert_b64 self.license_url = license_url self.headers = headers def get_keys(self): wvdecrypt = WvDecrypt(init_data_b64=self.pssh_value, cert_data_b64=self.cert_b64, device=device_android_generic) raw_challenge = wvdecrypt.get_challenge() data = raw_challenge response = requests.post(self.license_url, headers=self.headers, data=data) license_b64 = b64encode(response.content) wvdecrypt.update_license(license_b64) keys = wvdecrypt.start_process() return keys class DataExtractor_DSNP: def __init__(self, content): self.content = content def extract_base64_by_choice(self, choice): if self.content: matches = [(match[0], re.search(r'base64,(.*)', match[1]).group(1)) for match in re.findall(r'KEYFORMAT="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed",KEYFORMATVERSIONS="[^"]+",CHARACTERISTICS="([^"]+)",URI="([^"]+)"', self.content)] if matches: if 1 <= choice <= len(matches): characteristics, base64_data = matches[choice - 1] return characteristics, base64_data else: return None, None return None, None def get_characteristics_list(self): if self.content: matches = [(match[0], re.search(r'base64,(.*)', match[1]).group(1)) for match in re.findall(r'KEYFORMAT="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed",KEYFORMATVERSIONS="[^"]+",CHARACTERISTICS="([^"]+)",URI="([^"]+)"', self.content)] return matches return [] def parse_manifest_ism(manifest_url): r = requests.get(manifest_url, headers={'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) ' 'AppleWebKit/537.36 (KHTML, like Gecko) ' 'Chrome/72.0.3626.121 Safari/537.36'}) if r.status_code != 200: raise Exception(r.text) ism = xmltodict.parse(r.text) pssh = ism['SmoothStreamingMedia']['Protection']['ProtectionHeader']['#text'] pr_pssh_dec = base64.b64decode(pssh).decode('utf16') pr_pssh_dec = pr_pssh_dec[pr_pssh_dec.index('<'):] pr_pssh_xml = xmltodict.parse(pr_pssh_dec) kid_hex = base64.b64decode(pr_pssh_xml['WRMHEADER']['DATA']['KID']).hex() kid = uuid.UUID(kid_hex).bytes_le.hex() stream_indices = ism['SmoothStreamingMedia']['StreamIndex'] # List to store information for each stream stream_info_list = [] # Iterate over each StreamIndex (as it might be a list) for stream_info in stream_indices if isinstance(stream_indices, list) else [stream_indices]: type_info = stream_info['@Type'] if type_info in {'video', 'audio'}: # Handle the case where there can be multiple QualityLevel elements quality_levels = stream_info.get('QualityLevel', []) if not isinstance(quality_levels, list): quality_levels = [quality_levels] for quality_level in quality_levels: codec = quality_level.get('@FourCC', 'N/A') bitrate = quality_level.get('@Bitrate', 'N/A') # Additional attributes for video streams if type_info == 'video': max_width = quality_level.get('@MaxWidth', 'N/A') max_height = quality_level.get('@MaxHeight', 'N/A') resolution = f"{max_width}x{max_height}" else: resolution = 'N/A' # Additional attributes for audio streams language = stream_info.get('@Language', 'N/A') track_id = stream_info.get('@AudioTrackId', 'N/A') if type_info == 'audio' else None stream_info_list.append({ 'type': type_info, 'codec': codec, 'bitrate': bitrate, 'resolution': resolution, 'language': language, 'track_id': track_id }) # PSSH encoding logic in ism array_of_bytes = bytearray(b'\x00\x00\x002pssh\x00\x00\x00\x00') array_of_bytes.extend(bytes.fromhex("edef8ba979d64acea3c827dcd51d21ed")) array_of_bytes.extend(b'\x00\x00\x00\x12\x12\x10') array_of_bytes.extend(bytes.fromhex(str(kid).replace("-", ""))) encoded_string = base64.b64encode(bytes.fromhex(array_of_bytes.hex())).decode("utf-8") return kid, stream_info_list, encoded_string def get_keys_license_cdrm_project(license_url, headers_license, pssh_value): formatted_headers = '\n'.join([f'{key}: "{value}"' for key, value in headers_license.items()]) json_data = { 'license': license_url, 'headers': formatted_headers, 'pssh': pssh_value, 'buildInfo': '', 'proxy': '', 'cache': False, } response = requests.post('https://cdrm-project.com/wv', json=json_data) return response def get_keys_cache_cdrm_project(pssh_value): data = pssh_value response = requests.post('https://cdrm-project.com/findpssh', data=data) print_keys_cdrm_project(response) def print_keys_cdrm_project(response): if response.status_code == 200: soup = BeautifulSoup(response.text, 'html.parser') li_elements = soup.find('ol').find_all('li') for li in li_elements: key = li.get_text(strip=True) print(f'KEY: {key}') else: print(f"Error: {response.status_code}") def extract_pssh_m3u8(content): # Use regular expression to extract the Base64-encoded PSSH value pssh_match = re.search(r'URI="data:text/plain;base64,([^"]+)"', content) if pssh_match: pssh_base64 = pssh_match.group(1) return pssh_base64 # If the regex match fails, return None or raise an exception as needed return None def get_keys_cdrm_api(headers_license, license_url, pssh_value): api_url = "https://cdrm-project.com/api" r = requests.post(api_url, headers=headers_license, json={"license": license_url, "pssh": pssh_value}) data = r.json() # Extract keys from the response keys = [key["key"] for key in data.get("keys", [])] return keys