mirror of
https://github.com/Arrowar/StreamingCommunity.git
synced 2025-06-07 12:05:35 +00:00
126 lines
4.5 KiB
Python
126 lines
4.5 KiB
Python
# 03.04.24
|
|
|
|
import sys
|
|
import logging
|
|
import subprocess
|
|
import importlib.util
|
|
|
|
|
|
# Internal utilities
|
|
from Src.Util.console import console
|
|
|
|
|
|
# Check if Crypto module is installed
|
|
crypto_spec = importlib.util.find_spec("Crypto")
|
|
crypto_installed = crypto_spec is not None
|
|
|
|
|
|
if crypto_installed:
|
|
logging.info("Decrypy use: Crypto")
|
|
from Crypto.Cipher import AES # type: ignore
|
|
from Crypto.Util.Padding import unpad # type: ignore
|
|
|
|
class M3U8_Decryption:
|
|
"""
|
|
Class for decrypting M3U8 playlist content using AES encryption when the Crypto module is available.
|
|
"""
|
|
def __init__(self, key: bytes, iv: bytes, method: str) -> None:
|
|
"""
|
|
Initialize the M3U8_Decryption object.
|
|
|
|
Args:
|
|
- key (bytes): The encryption key.
|
|
- iv (bytes): The initialization vector (IV).
|
|
- method (str): The encryption method.
|
|
"""
|
|
self.key = key
|
|
if "0x" in str(iv):
|
|
self.iv = bytes.fromhex(iv.replace("0x", ""))
|
|
else:
|
|
self.iv = iv
|
|
self.method = method
|
|
logging.info(f"Decrypt add: ('key': {self.key}, 'iv': {self.iv}, 'method': {self.method})")
|
|
|
|
def decrypt(self, ciphertext: bytes) -> bytes:
|
|
"""
|
|
Decrypt the ciphertext using the specified encryption method.
|
|
|
|
Args:
|
|
- ciphertext (bytes): The encrypted content to decrypt.
|
|
|
|
Returns:
|
|
bytes: The decrypted content.
|
|
"""
|
|
if self.method == "AES":
|
|
cipher = AES.new(self.key, AES.MODE_ECB)
|
|
decrypted_data = cipher.decrypt(ciphertext)
|
|
return unpad(decrypted_data, AES.block_size)
|
|
|
|
elif self.method == "AES-128":
|
|
cipher = AES.new(self.key[:16], AES.MODE_CBC, iv=self.iv)
|
|
decrypted_data = cipher.decrypt(ciphertext)
|
|
return unpad(decrypted_data, AES.block_size)
|
|
|
|
elif self.method == "AES-128-CTR":
|
|
cipher = AES.new(self.key[:16], AES.MODE_CTR, nonce=self.iv)
|
|
return cipher.decrypt(ciphertext)
|
|
|
|
else:
|
|
raise ValueError("Invalid or unsupported method")
|
|
|
|
else:
|
|
|
|
# Check if openssl command is available
|
|
openssl_available = subprocess.run(["openssl", "version"], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL).returncode == 0
|
|
logging.info("Decrypy use: OPENSSL")
|
|
|
|
if not openssl_available:
|
|
console.log("[red]Neither Crypto nor openssl is installed. Please install either one of them.")
|
|
sys.exit(0)
|
|
|
|
class M3U8_Decryption:
|
|
"""
|
|
Class for decrypting M3U8 playlist content using OpenSSL when the Crypto module is not available.
|
|
"""
|
|
def __init__(self, key: bytes, iv: bytes, method: str) -> None:
|
|
"""
|
|
Initialize the M3U8_Decryption object.
|
|
|
|
Args:
|
|
- key (bytes): The encryption key.
|
|
- iv (bytes): The initialization vector (IV).
|
|
- method (str): The encryption method.
|
|
"""
|
|
self.key = key
|
|
if "0x" in str(iv):
|
|
self.iv = bytes.fromhex(iv.replace("0x", ""))
|
|
else:
|
|
self.iv = iv
|
|
self.method = method
|
|
logging.info(f"Decrypt add: ('key': {self.key}, 'iv': {self.iv}, 'method': {self.method})")
|
|
|
|
def decrypt(self, ciphertext: bytes) -> bytes:
|
|
"""
|
|
Decrypt the ciphertext using the specified encryption method.
|
|
|
|
Args:
|
|
- ciphertext (bytes): The encrypted content to decrypt.
|
|
|
|
Returns:
|
|
bytes: The decrypted content.
|
|
"""
|
|
if self.method == "AES":
|
|
openssl_cmd = f'openssl enc -d -aes-256-ecb -K {self.key.hex()} -nosalt'
|
|
elif self.method == "AES-128":
|
|
openssl_cmd = f'openssl enc -d -aes-128-cbc -K {self.key[:16].hex()} -iv {self.iv.hex()}'
|
|
elif self.method == "AES-128-CTR":
|
|
openssl_cmd = f'openssl enc -d -aes-128-ctr -K {self.key[:16].hex()} -iv {self.iv.hex()}'
|
|
else:
|
|
raise ValueError("Invalid or unsupported method")
|
|
|
|
try:
|
|
decrypted_data = subprocess.check_output(openssl_cmd.split(), input=ciphertext, stderr=subprocess.STDOUT)
|
|
except subprocess.CalledProcessError as e:
|
|
raise ValueError(f"Decryption failed: {e.output.decode()}")
|
|
|
|
return decrypted_data |