Update check_tvheadend.py
WIP
This commit is contained in:
@ -15,54 +15,184 @@ def parse_args():
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parser.add_argument("--port", default="9981", help="TVHeadend port")
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parser.add_argument("--user", required=True, help="API username")
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parser.add_argument("--password", required=True, help="API password")
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parser.add_argument("--timeout", type=int, default=10, help="Request timeout")
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parser.add_argument("--debug", action="store_true", help="Enable debug mode")
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parser.add_argument("--min_snr", type=int, default=20, help="Minimum SNR threshold (dB)")
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parser.add_argument("--min_signal", type=int, default=-60, help="Minimum signal strength (dBm)")
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parser.add_argument("--timeout", type=int, default=10, help="Request timeout in seconds")
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parser.add_argument("--debug", action="store_true", help="Enable debug output")
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return parser.parse_args()
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def check_api_status(args):
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def tvheadend_api_call(url, auth, timeout, debug=False):
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headers = {"Accept": "application/json"}
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try:
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if debug:
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print(f"DEBUG: Calling API endpoint: {url}")
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response = requests.get(url, auth=auth, headers=headers, timeout=timeout)
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if debug:
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print(f"DEBUG: Response status: {response.status_code}")
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if response.status_code == 404:
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return None
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response.raise_for_status()
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return response.json()
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except requests.exceptions.RequestException as e:
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if debug:
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print(f"DEBUG: Request failed: {str(e)}")
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raise Exception(f"API request failed: {str(e)}")
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def discover_api_endpoints(base_url, auth, timeout, debug):
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endpoints = {
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'adapters': None,
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'muxes': None
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}
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# Common possible endpoints for adapters
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possible_adapter_endpoints = [
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'/api/dvb/adapters', # Older versions
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'/api/hardware/tree', # Newer versions
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'/api/adapter' # Some variants
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]
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# Common possible endpoints for muxes
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possible_mux_endpoints = [
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'/api/mux/status',
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'/api/dvb/mux/status',
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'/api/mux'
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]
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# Test adapter endpoints
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for endpoint in possible_adapter_endpoints:
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if debug:
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print(f"DEBUG: Trying adapter endpoint: {endpoint}")
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result = tvheadend_api_call(base_url + endpoint, auth, timeout, debug)
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if result is not None:
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endpoints['adapters'] = endpoint
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break
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# Test mux endpoints
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for endpoint in possible_mux_endpoints:
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if debug:
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print(f"DEBUG: Trying mux endpoint: {endpoint}")
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result = tvheadend_api_call(base_url + endpoint, auth, timeout, debug)
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if result is not None:
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endpoints['muxes'] = endpoint
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break
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if debug:
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print(f"DEBUG: Discovered endpoints: {endpoints}")
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if not endpoints['adapters'] or not endpoints['muxes']:
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raise Exception("Could not discover required API endpoints. Check TVHeadend version.")
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return endpoints
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def check_tuner_status(args):
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base_url = f"http://{args.host}:{args.port}"
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auth = HTTPDigestAuth(args.user, args.password)
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try:
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# First check basic API accessibility
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status_url = f"{base_url}/api/status"
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if args.debug:
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print(f"DEBUG: Checking API status at {status_url}")
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print("DEBUG: Starting TVHeadend check...")
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print(f"DEBUG: Base URL: {base_url}")
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response = requests.get(status_url, auth=auth, timeout=args.timeout)
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if response.status_code == 401:
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raise Exception("Authentication failed - check credentials")
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response.raise_for_status()
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# Discover available endpoints
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endpoints = discover_api_endpoints(base_url, auth, args.timeout, args.debug)
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# Get adapter status
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adapters = tvheadend_api_call(
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base_url + endpoints['adapters'],
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auth,
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args.timeout,
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args.debug
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)
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if args.debug:
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print(f"DEBUG: API status response: {response.json()}")
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print(f"DEBUG: Adapters response: {adapters}")
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# Find DVB-T/T2 adapters
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dvbt_adapters = []
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for adapter in adapters.get("entries", []):
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if args.debug:
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print(f"DEBUG: Checking adapter: {adapter}")
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# Different versions use different field names
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adapter_type = adapter.get("type") or adapter.get("adapter_type") or ""
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if "DVB-T" in adapter_type.upper():
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dvbt_adapters.append(adapter)
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if not dvbt_adapters:
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return CRITICAL, "No active DVB-T/T2 adapters found", []
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if args.debug:
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print(f"DEBUG: Found {len(dvbt_adapters)} DVB-T/T2 adapters")
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# Get muxes (signal information)
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muxes = tvheadend_api_call(
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base_url + endpoints['muxes'],
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auth,
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args.timeout,
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args.debug
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)
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if args.debug:
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print(f"DEBUG: Muxes response: {muxes}")
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status = OK
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messages = []
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perfdata = []
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for mux in muxes.get("entries", []):
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# Different versions use different status indicators
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enabled = mux.get("enabled", False)
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status_field = mux.get("status", "active") or mux.get("state", "active")
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if enabled and status_field.lower() == "active":
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signal = mux.get("signal", 0)
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snr = mux.get("snr", 0)
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ber = mux.get("ber", 0)
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mux_id = mux.get("uuid", mux.get("id", "unknown"))
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perfdata.extend([
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f"'{mux_id}_signal'={signal}dBm",
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f"'{mux_id}_snr'={snr}dB",
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f"'{mux_id}_ber'={ber}"
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])
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if args.debug:
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print(f"DEBUG: MUX {mux_id} - Signal: {signal}dBm, SNR: {snr}dB, BER: {ber}")
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if snr < args.min_snr or signal < args.min_signal:
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msg = f"MUX {mux_id}: Low signal (SNR={snr}dB, Signal={signal}dBm)"
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if snr < (args.min_snr / 2) or signal < (args.min_signal - 10):
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status = max(status, CRITICAL)
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messages.append(f"CRITICAL: {msg}")
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else:
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status = max(status, WARNING)
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messages.append(f"WARNING: {msg}")
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if status == OK:
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active_muxes = len([m for m in muxes.get("entries", [])
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if m.get("enabled", False) and
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(m.get("status", "active") or m.get("state", "active")).lower() == "active"])
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message = f"OK: {active_muxes} active MUXes with good signal"
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if args.debug:
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print(f"DEBUG: {message}")
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return OK, message, perfdata
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else:
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return status, " ".join(messages), perfdata
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return True
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except Exception as e:
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if args.debug:
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print(f"DEBUG: API check failed: {str(e)}")
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raise Exception(f"Cannot access TVHeadend API: {str(e)}")
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def main():
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args = parse_args()
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try:
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# Verify API is accessible
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check_api_status(args)
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# If we got here, API is accessible but we couldn't find specific endpoints
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msg = "TVHeadend API is accessible but required endpoints not found"
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if args.debug:
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print(f"DEBUG: {msg}")
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print("DEBUG: Try checking available endpoints with:")
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print(f"DEBUG: curl -u '{args.user}:{args.password}' http://{args.host}:{args.port}/api/help")
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print(msg)
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sys.exit(UNKNOWN)
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except Exception as e:
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print(str(e))
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sys.exit(CRITICAL)
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print(f"DEBUG: Error occurred: {str(e)}")
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return CRITICAL, str(e), []
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if __name__ == "__main__":
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main()
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args = parse_args()
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status, message, perfdata = check_tuner_status(args)
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if perfdata:
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message += " | " + " ".join(perfdata)
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print(message)
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sys.exit(status)
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