# --------------------------------------------------------- # Helper functions # --------------------------------------------------------- def fetch_page(url: str) -> str: """Return the raw HTML of the given URL.""" if requests: resp = requests.get(url, timeout=30) resp.raise_for_status() return resp.text else: from urllib.request import urlopen with urlopen(url, timeout=30) as f: return f.read().decode("utf-8", errors="replace")
def sha256_of_file(path: Path) -> str: """Calculate SHA‑256 hash of a file.""" h = hashlib.sha256() with open(path, "rb") as f: for block in iter(lambda: f.read(65536), b""): h.update(block) return h.hexdigest() mototrbo cps 20 version 226 download free
# 5️⃣ Verify SHA‑256 print("\nVerifying file integrity …") actual_sha256 = sha256_of_file(dest_path) if actual_sha256 != expected_sha256: print("❌ HASH MISMATCH!") print(f" Expected: expected_sha256") print(f" Actual : actual_sha256") print("The file may be corrupted or tampered with. Deleting it now.") dest_path.unlink() sys.exit(2) else: print("✅ Hash verified – file is authentic.") timeout=30) as f: return f.read().decode("utf-8"