[Unit] Description=Standalone Software Updater Daemon After=network.target [Service] ExecStart=/usr/bin/python3 /opt/myapp/standalone_updater_daemon.py Restart=always User=daemon
def download_update(url, dest_path): logging.info(f"Downloading update from url") r = requests.get(url, stream=True) with open(dest_path, "wb") as f: for chunk in r.iter_content(chunk_size=8192): f.write(chunk) return dest_path
def verify_signature(file_path, expected_signature_hex): # Simplified: compute SHA256 and compare with signed hash hasher = hashlib.sha256() with open(file_path, "rb") as f: for chunk in iter(lambda: f.read(4096), b""): hasher.update(chunk) computed_hash = hasher.hexdigest() return computed_hash == expected_signature_hex
[Unit] Description=Standalone Software Updater Daemon After=network.target [Service] ExecStart=/usr/bin/python3 /opt/myapp/standalone_updater_daemon.py Restart=always User=daemon
def download_update(url, dest_path): logging.info(f"Downloading update from url") r = requests.get(url, stream=True) with open(dest_path, "wb") as f: for chunk in r.iter_content(chunk_size=8192): f.write(chunk) return dest_path standaloneupdaterdaemon
def verify_signature(file_path, expected_signature_hex): # Simplified: compute SHA256 and compare with signed hash hasher = hashlib.sha256() with open(file_path, "rb") as f: for chunk in iter(lambda: f.read(4096), b""): hasher.update(chunk) computed_hash = hasher.hexdigest() return computed_hash == expected_signature_hex stream=True) with open(dest_path