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


def _cfg():
    s = json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
    region = str(s.get("region") or "us").strip().lower()
    base = "https://" + region + ".api.insight.rapid7.com/"
    headers = {"X-Api-Key": s.get("api_key", ""), "Content-Type": "application/json", "Accept": "application/json"}
    return base, headers


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


def _list(v):
    if v in (None, ""):
        return []
    if isinstance(v, list):
        return [str(x).strip() for x in v if str(x).strip()]
    return [p.strip() for p in str(v).split(",") if p.strip()]


def _prune(d):
    return {k: v for k, v in d.items() if v}


def request(method, path, params=None, body=None):
    base, headers = _cfg()
    url = base + path.lstrip("/")
    if params:
        clean = {k: v for k, v in params.items() if v not in (None, "")}
        if clean:
            url += ("&" if "?" in url else "?") + urllib.parse.urlencode(clean, doseq=True)
    data = json.dumps(body).encode("utf-8") if body is not None else None
    req = urllib.request.Request(url, data=data, headers=headers, method=method)
    with urllib.request.urlopen(req, timeout=90) as r:
        raw = r.read()
        return json.loads(raw) if raw else {}


# replace deletes the threat's existing indicators before adding the supplied ones.
ACTION = "replace"


def run():
    inp = _inputs()
    body = _prune({
        "ips": _list(inp.get("ip_addresses")),
        "hashes": _list(inp.get("hashes")),
        "domain_names": _list(inp.get("domain_names")),
        "urls": _list(inp.get("url")),
    })
    results = []
    for key in _list(inp.get("key")):
        out = request(
            "POST",
            "idr/v1/customthreats/key/" + urllib.parse.quote(key, safe="") + "/indicators/" + ACTION,
            params={"format": "json"},
            body=body,
        )
        results.append(out.get("threat", out))
    print(json.dumps({"data": results}))


try:
    run()
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)
