feat: add pihole ping script

ping-pihole.py

@@ -0,0 +1,78 @@
+import base64
+import getpass
+import os
+import socket
+from datetime import datetime, timedelta
+
+import requests
+
+PIHOLE_IP = "192.168.68.53"
+PIHOLE_PASSWORD = os.environ.get("PIHOLE_PASSWORD")
+HOSTNAME = socket.gethostname()
+USER = getpass.getuser()
+NTFY_URL = "https://ntfy.systemsobscure.net/homelab"
+NTFY_PASSWORD = os.environ.get("NTFY_PASSWORD")
+NTFY_ENCODED_AUTH = f"Basic {base64.b64encode(f'thomas:{NTFY_PASSWORD}'.encode('utf-8')).decode('utf-8')}"
+HOST_IP = socket.gethostbyname(HOSTNAME)
+
+
+def get_authorisation_token():
+    r = requests.post(
+        f"http://{PIHOLE_IP}/api/auth",
+        json={"password": PIHOLE_PASSWORD},
+    )
+    return r.json()["session"]["sid"]
+
+
+def get_stats(headers):
+    r = requests.get(f"http://{PIHOLE_IP}/api/stats/summary", headers=headers)
+    return r.json()["queries"]
+
+
+def convertUptime(seconds):
+    duration = timedelta(seconds=seconds)
+    days = duration.days
+    hours = duration.seconds // 3600
+    minutes = (duration.seconds % 3600) // 60
+    secs = duration.seconds % 60
+    since = datetime.now() - duration
+
+    return {
+        "days": days,
+        "hours": hours,
+        "minutes": minutes,
+        "seconds": secs,
+        "since": since.strftime("%a %d %b %Y %H:%M:%S"),
+    }
+
+
+def get_uptime(headers):
+    r = requests.get(f"http://{PIHOLE_IP}/api/info/system", headers=headers)
+    uptime_in_secs = r.json()["system"]["uptime"]
+    return convertUptime(uptime_in_secs)
+
+
+if __name__ == "__main__":
+    ntfy_headers = {
+        "Authorization": NTFY_ENCODED_AUTH,
+        "Tags": f"{USER}@{HOSTNAME}({HOST_IP})",
+    }
+
+    try:
+        auth_token = get_authorisation_token()
+        headers = {"X-FTL-SID": auth_token}
+        stats = get_stats(headers)
+        uptime = get_uptime(headers)
+        message = f"""🟩 pihole@{PIHOLE_IP} is up.\nTotal queries blocked: {stats["blocked"]} of {stats["total"]} ({round(stats["percent_blocked"])}%)\nUptime: {uptime["days"]} days, {uptime["hours"]} hours, {uptime["minutes"]} minutes (since {uptime["since"]}) 
+    """
+        requests.post(
+            NTFY_URL,
+            data=message,
+            headers=ntfy_headers,
+        )
+    except (requests.exceptions.ConnectionError, requests.exceptions.Timeout):
+        requests.post(
+            NTFY_URL, data=f"🟥 pihole@{PIHOLE_IP} is down.", headers=ntfy_headers
+        )
+    except Exception as e:
+        print(f"TB-ERROR: Error fetching Pihole stats and status: {e}")