import json, os, sys, ssl, urllib.request, urllib.error

URLS = {
    "v4": "https://www.cloudflare.com/ips-v4",
    "v6": "https://www.cloudflare.com/ips-v6",
}


def _cfg():
    return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))


def _inputs():
    return json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))


def _ctx(cfg):
    if cfg.get("insecure"):
        c = ssl.create_default_context()
        c.check_hostname = False
        c.verify_mode = ssl.CERT_NONE
        return c
    return None


def _get(url, cfg):
    req = urllib.request.Request(url, headers={"User-Agent": "Riposte-SOAR"})
    with urllib.request.urlopen(req, timeout=60, context=_ctx(cfg)) as r:
        return r.read()


def _run(fn):
    try:
        print(json.dumps(fn(_cfg(), _inputs())))
    except urllib.error.HTTPError as e:
        print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
        sys.exit(1)
    except Exception as e:
        print(json.dumps({"error": str(e)}))
        sys.exit(1)


def main(cfg, inputs):
    raw = _get(URLS["v4"], cfg).decode("utf-8", "replace")
    n = sum(1 for ln in raw.splitlines() if ln.strip() and not ln.startswith("#"))
    return {"ok": True, "sample_count": n}


_run(main)