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import os, json, time, requests, io, sys, ipaddress
NTFY_ENDPOINT = os.environ["NTFY_ENDPOINT"]
NTFY_TOKEN = os.environ["NTFY_TOKEN"]
TITLE_PREFIX = os.getenv("NTFY_TITLE_PREFIX", "Iperf")
MIN_DURATION = int(os.getenv("MIN_DURATION_SECONDS", "0"))
LOGFILE = "/logs/iperf3.jsonl"
# Optional: second provider for lookup
IPINFO_TOKEN = os.getenv("IPINFO_TOKEN")
IP_LOOKUP_CACHE_TTL = int(os.getenv("IP_LOOKUP_CACHE_TTL", "86400"))
_ip_cache: dict[str, tuple[float, dict]] = {}
def iter_json_objects(fobj: io.TextIOBase):
buf, depth, in_string, escape = [], 0, False, False
while True:
chunk = fobj.read()
if not chunk:
time.sleep(0.3)
continue
for ch in chunk:
buf.append(ch)
if ch == '"' and not escape:
in_string = not in_string
if ch == '\\' and not escape:
escape = True
else:
escape = False
if not in_string:
if ch == '{':
depth += 1
elif ch == '}':
depth -= 1
if depth == 0:
s = ''.join(buf).strip()
buf.clear()
if s:
yield s
def human_mbps(bps: float | None) -> str:
return "n/a" if bps is None else f"{bps / 1e6:.2f} Mbit/s"
def extract_client_ip(d: dict) -> str:
try:
return d["start"]["connected"][0]["remote_host"]
except Exception:
return d.get("remote_host", "unknown")
def is_public_ip(ip: str) -> bool:
try:
return ipaddress.ip_address(ip).is_global
except Exception:
return False
def lookup_ip_ipapi(ip: str) -> dict:
url = f"http://ip-api.com/json/{ip}"
params = {
"fields": "status,message,country,regionName,city,isp,org,as,query",
}
r = requests.get(url, params=params, timeout=5)
r.raise_for_status()
j = r.json()
if j.get("status") != "success":
return {"ok": False}
return {
"ok": True,
"country": j.get("country"),
"region": j.get("regionName"),
"city": j.get("city"),
"asn_text": j.get("as"),
"isp": j.get("isp"),
"org": j.get("org"),
}
def lookup_ip(ip: str) -> dict:
now = time.time()
cached = _ip_cache.get(ip)
if cached and (now - cached[0]) < IP_LOOKUP_CACHE_TTL:
return cached[1]
if not is_public_ip(ip):
res = {"ok": False, "note": "private"}
_ip_cache[ip] = (now, res)
return res
try:
res = lookup_ip_ipapi(ip)
except Exception:
res = {"ok": False}
_ip_cache[ip] = (now, res)
return res
def format_ip_enrichment(info: dict) -> list[str]:
if not info.get("ok"):
return ["IP-Info: n/a"]
lines = []
loc = " / ".join(filter(None, [info.get("country"), info.get("region"), info.get("city")]))
if loc:
lines.append(f"Location: {loc}")
if info.get("asn_text"):
lines.append(f"ASN: {info['asn_text']}")
if info.get("isp"):
lines.append(f"ISP: {info['isp']}")
return lines
def detect_direction_server_view(d: dict) -> str:
test = d.get("start", {}).get("test_start", {}) or {}
rev = test.get("reverse")
if isinstance(rev, bool):
return "Senden" if rev else "Empfangen"
if isinstance(rev, int):
return "Senden" if rev == 1 else "Empfangen"
end = d.get("end", {})
recv = (end.get("sum_received") or {}).get("bits_per_second")
sent = (end.get("sum_sent") or {}).get("bits_per_second")
if recv is not None and sent is None:
return "Empfangen"
if sent is not None and recv is None:
return "Senden"
if isinstance(recv, (int, float)) and isinstance(sent, (int, float)):
return "Empfangen" if recv >= sent else "Senden"
return "unbekannt"
def build_message(d: dict) -> tuple[str, str]:
client_ip = extract_client_ip(d)
ipinfo = lookup_ip(client_ip)
test = d.get("start", {}).get("test_start", {})
proto = str(test.get("protocol", "TCP")).upper()
duration = test.get("duration")
streams = test.get("num_streams")
if MIN_DURATION and duration and duration < MIN_DURATION:
raise ValueError("Testdauer zu kurz")
direction = detect_direction_server_view(d)
messung = "Upload" if direction == "Empfangen" else "Download"
land = ipinfo.get("country") if ipinfo.get("ok") else "unbekannt"
title = f"Iperf: {messung}-Messung aus {land} erfolgt"
end = d.get("end", {})
body = [
f"Gegenstelle: {client_ip}",
f"Protokoll: {proto}",
f"Richtung (Server): {direction}",
]
body.extend(format_ip_enrichment(ipinfo))
if proto == "UDP":
s = end.get("sum") or end.get("sum_received") or {}
body.append(f"Speed: {human_mbps(s.get('bits_per_second'))}")
if s.get("jitter_ms") is not None:
body.append(f"Jitter: {s['jitter_ms']} ms")
if s.get("lost_percent") is not None:
body.append(f"Loss: {s['lost_percent']} %")
else:
recv = end.get("sum_received", {})
sent = end.get("sum_sent", {})
bps = recv.get("bits_per_second") if direction == "Empfangen" else sent.get("bits_per_second")
body.append(f"Throughput: {human_mbps(bps)}")
if sent.get("retransmits") is not None:
body.append(f"Retransmits: {sent['retransmits']}")
if duration:
body.append(f"Dauer: {duration}s")
if streams:
body.append(f"Streams: {streams}")
return title, "\n".join(body)
def publish_to_ntfy(title: str, body: str):
headers = {
"Authorization": f"Bearer {NTFY_TOKEN}",
"Title": title,
"Priority": "default",
}
r = requests.post(NTFY_ENDPOINT, data=body.encode("utf-8"), headers=headers, timeout=10)
r.raise_for_status()
def tail_file(path: str):
while not os.path.exists(path):
time.sleep(0.5)
with open(path, "r", encoding="utf-8", errors="ignore") as f:
f.seek(0, io.SEEK_END)
for raw in iter_json_objects(f):
try:
data = json.loads(raw)
title, body = build_message(data)
publish_to_ntfy(title, body)
print(f"[ntfy] Sent: {title}")
except Exception as e:
print(f"[error] {e}", file=sys.stderr)
if __name__ == "__main__":
tail_file(LOGFILE)
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