Integrating Avalex License Validation in Python Applications

pip install requests

import hashlib
import platform
import subprocess
import requests
import time

AVALEX_API_URL = "http://localhost:8080/licenses/validate"
PRODUCT_ID = "prod_enterprise_2026"

def get_hwid() -> str:
    system = platform.system()
    raw_id = ""
    try:
        if system == "Windows":
            cmd = "wmic csproduct get uuid"
            raw_id = subprocess.check_output(cmd, shell=True).decode().split('\n')[1].strip()
        elif system == "Linux":
            with open("/etc/machine-id", "r") as f:
                raw_id = f.read().strip()
        elif system == "Darwin":
            cmd = "ioreg -rd1 -c IOPlatformExpertDevice | grep IOPlatformUUID"
            raw_id = subprocess.check_output(cmd, shell=True).decode().split('"')[3].strip()
    except Exception:
        raw_id = platform.node() + platform.machine()
    return hashlib.sha256(raw_id.encode()).hexdigest().upper()[:32]

def validate_license(license_id: str) -> bool:
    hwid = get_hwid()
    payload = {
        "licenseId": license_id,
        "productId": PRODUCT_ID,
        "hwid": hwid
    }
    try:
        response = requests.post(AVALEX_API_URL, json=payload, timeout=5)
        if response.status_code == 200:
            data = response.json()
            return data.get("valid", False)
        elif response.status_code == 429:
            print("[Avalex] Rate limit reached. Backing off.")
            return False
        else:
            print(f"[Avalex] Server responded with error status: {response.status_code}")
            return False
    except requests.RequestException as e:
        print(f"[Avalex] Connection failed: {e}")
        return False

if __name__ == "__main__":
    user_license = "LIC-8829-X19"
    is_valid = validate_license(user_license)
    if is_valid:
        print("License active. Starting application...")
    else:
        print("Invalid or expired license. Exiting.")