script to watch for traceroute timeouts

script.py

import subprocess
import time
import re
from datetime import datetime

def parse_traceroute_output(output):
    # Adjusted regex pattern to also capture timeout lines (e.g., '* * *')
    pattern = re.compile(r"(\d+)\s+([\w\.\-]+|\*\s\*\s\*)\s*(?:\(([\d\.]+)\))?\s*([\d\.]+ ms)?")
    hops = []
    for line in output.splitlines():
        match = pattern.search(line)
        if match:
            hop_num, host, ip, latency = match.groups()
            if host.strip() == "* * *":
                hops.append((hop_num, "timeout", "timeout", "timeout"))
            else:
                hops.append((hop_num, host, ip or "N/A", latency or "timeout"))
    return hops

def log_traceroute(hops, log_file="traceroute_log.txt"):
    with open(log_file, "a") as file:
        timestamp = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
        for hop in hops:
            if hop[1] == "timeout":
                file.write(f"{timestamp}, Hop {hop[0]}: Timeout\n")
            else:
                file.write(f"{timestamp}, Hop {hop[0]}: {hop[1]} ({hop[2]}) {hop[3]}\n")


def run_traceroute(target):
    # Replace 'traceroute' with 'tracert' on Windows
    command = ['traceroute', target]
    try:
        # Run the traceroute command
        output = subprocess.check_output(command, text=True)
        return output
    except subprocess.CalledProcessError as e:
        print(f"Error running traceroute: {e}")
        return ""

def main(target, interval=60, duration=3600):
    start_time = time.time()
    while time.time() - start_time < duration:
        output = run_traceroute(target)
        hops = parse_traceroute_output(output)
        log_traceroute(hops)
        time.sleep(interval)

if __name__ == "__main__":
    target = "1.1.1.1"  # Set your target
    main(target, interval=30)  # Run every 5 minutes