Revision of ping_monitor.py

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gistfile1.txt(file created)

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1	+	Пример вывода при успешном
2	+	```
3	+	Ping monitor for example.com
4	+
5	+	Status: pinging... (connection stable)
6	+	Current series: packets_lost=0 \| duration=0.0 sec \| 2023-05-15 14:30:45
7	+
8	+	Press Ctrl+C to exit...
9	+	```
10	+
11	+	Пример вывода при потере пакетов
12	+	```
13	+	Ping monitor for example.com
14	+
15	+	Status: CONNECTION LOST!
16	+	Current series: packets_lost=3 \| duration=3.0 sec \| started at 2023-05-15 14:31:02
17	+
18	+	Outage history (sorted by packets lost):
19	+	------------------------------------------------------------
20	+	Start: 2023-05-15 14:25:10 \| Packets lost: 5 \| Duration: 5.0 sec
21	+	Start: 2023-05-15 14:20:30 \| Packets lost: 2 \| Duration: 2.0 sec
22	+
23	+	Press Ctrl+C to exit...
24	+	```

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1 file changed, 104 insertions

ping_monitor.py(file created)

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1	+	#!/usr/bin/env python3
2	+	import sys
3	+	import subprocess
4	+	import time
5	+	from datetime import datetime
6	+	from collections import deque
7	+
8	+	class PingMonitor:
9	+	def __init__(self, host):
10	+	self.host = host
11	+	self.current_outage = None
12	+	self.outages = deque(maxlen=100) # Ограничиваем количество хранимых серий
13	+	self.last_success_time = datetime.now()
14	+
15	+	def ping_host(self):
16	+	try:
17	+	# -c 1: один пакет, -W 1: таймаут 1 секунда (для Linux)
18	+	# Для Windows нужно использовать "-n 1 -w 1000"
19	+	result = subprocess.run(['ping', '-c', '1', '-W', '1', self.host],
20	+	stdout=subprocess.PIPE,
21	+	stderr=subprocess.PIPE,
22	+	text=True)
23	+	return result.returncode == 0
24	+	except Exception as e:
25	+	print(f"Error pinging host: {e}")
26	+	return False
27	+
28	+	def monitor(self):
29	+	while True:
30	+	success = self.ping_host()
31	+	now = datetime.now()
32	+
33	+	if not success and self.current_outage is None:
34	+	# Начало новой серии разрывов
35	+	self.current_outage = {
36	+	'start': now,
37	+	'packets_lost': 1,
38	+	'end': None
39	+	}
40	+	elif not success and self.current_outage is not None:
41	+	# Продолжение текущей серии разрывов
42	+	self.current_outage['packets_lost'] += 1
43	+	elif success and self.current_outage is not None:
44	+	# Серия разрывов закончилась
45	+	self.current_outage['end'] = now
46	+	self.outages.append(self.current_outage)
47	+	self.current_outage = None
48	+	self.last_success_time = now
49	+	elif success:
50	+	# Успешный пинг, обновляем время последнего успеха
51	+	self.last_success_time = now
52	+
53	+	self.print_status()
54	+	time.sleep(1) # Пауза между пингами
55	+
56	+	def print_status(self):
57	+	# Очищаем экран (работает в терминалах, поддерживающих ANSI коды)
58	+	print("\033c", end="")
59	+	print(f"Ping monitor for {self.host}\n")
60	+
61	+	# Всегда показываем текущий статус
62	+	if self.current_outage is None:
63	+	print("Status: pinging... (connection stable)")
64	+	current_duration = (datetime.now() - self.last_success_time).total_seconds()
65	+	print(f"Current series: packets_lost=0 \| duration={current_duration:.1f} sec \| {datetime.now()}")
66	+	else:
67	+	current_duration = (datetime.now() - self.current_outage['start']).total_seconds()
68	+	print(f"Status: CONNECTION LOST!")
69	+	print(f"Current series: packets_lost={self.current_outage['packets_lost']} \| "
70	+	f"duration={current_duration:.1f} sec \| started at {self.current_outage['start']}")
71	+
72	+	# Выводим историю разрывов, если они есть
73	+	if self.outages:
74	+	print("\nOutage history (sorted by packets lost):")
75	+	print("-" * 60)
76	+
77	+	# Сортируем серии по количеству потерянных пакетов (по убыванию)
78	+	sorted_outages = sorted(self.outages,
79	+	key=lambda x: x['packets_lost'],
80	+	reverse=True)
81	+
82	+	for outage in sorted_outages:
83	+	duration = (outage['end'] - outage['start']).total_seconds()
84	+	print(f"Start: {outage['start']} \| "
85	+	f"Packets lost: {outage['packets_lost']} \| "
86	+	f"Duration: {duration:.1f} sec")
87	+
88	+	print("\nPress Ctrl+C to exit...")
89	+
90	+	def main():
91	+	if len(sys.argv) != 2:
92	+	print("Usage: ./ping_monitor.py <host>")
93	+	sys.exit(1)
94	+
95	+	host = sys.argv[1]
96	+	monitor = PingMonitor(host)
97	+
98	+	try:
99	+	monitor.monitor()
100	+	except KeyboardInterrupt:
101	+	print("\nMonitoring stopped.")
102	+
103	+	if __name__ == "__main__":
104	+	main()

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