import base64, json, os, sys, urllib.parse, urllib.request, urllib.error

API = "https://search.censys.io/api/v2"


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


def request(method, path, params=None):
    url = API + path
    q = {k: str(x) for k, x in (params or {}).items() if x not in (None, "")}
    if q:
        url += ("&" if "?" in url else "?") + urllib.parse.urlencode(q)
    cfg = _cfg()
    cred = (str(cfg.get("api_id") or "") + ":" + str(cfg.get("api_secret") or "")).encode("utf-8")
    headers = {"Accept": "application/json", "Authorization": "Basic " + base64.b64encode(cred).decode("ascii")}
    req = urllib.request.Request(url, headers=headers, method=method)
    with urllib.request.urlopen(req, timeout=60) as r:
        raw = r.read()
        return json.loads(raw) if raw else {}


q = lambda v: urllib.parse.quote(str(v), safe="")


def main():
    inputs = json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
    query = inputs.get("query")
    if not query:
        raise Exception("query is required")
    per_page = inputs.get("per_page")
    cursor = inputs.get("cursor")
    result = request("GET", "/hosts/search", {"q": query, "per_page": per_page or 50, "cursor": cursor or None})
    print(json.dumps(result))


try:
    main()
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)
