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outage-detector
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changed names and formatted

This commit is contained in:
Kristian Krsnik 2023-08-15 23:27:29 +02:00
parent f96b809e78
commit ff9a154f0b
1 changed files with 45 additions and 37 deletions
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82
outage_detector/main.py
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@ -2,44 +2,51 @@
# Utility to determine the networks connection status by pinging IPs and logging the result
# It can also output a list of outages
from datetime import datetime
from ipaddress import ip_address
import socket
import time
from sys import argv
class LogEntry:
"""Class describing a connection attempt"""
def __init__(self, log_entry: str):
from datetime import datetime
def __init__(self, log_entry: str):
self.date = datetime.strptime(log_entry[0:19], '%Y-%m-%d %H:%M:%S')
self.ip = log_entry.split('[')[1].split(']')[0]
self.failed = 'FAIL' in log_entry
def isValidIP(ip: str) -> bool:
"""Check if a string is a valid IP"""
from ipaddress import ip_address
try:
ip_address(ip)
return True
except ValueError:
return False
def isReachable(ip: str = '1.1.1.1', port: int = 80, timeout: float = 2) -> bool:
"""Return wether an IP is reachable
[modified from source: https://gist.github.com/betrcode/0248f0fda894013382d7?permalink_comment_id=4438869#gistcomment-4438869]
"""
import socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.settimeout(timeout)
try:
reachable = s.connect_ex((ip, int(port))) == 0 # True if open, False if not
if reachable: s.shutdown(socket.SHUT_RDWR)
# True if open, False if not
reachable = s.connect_ex((ip, int(port))) == 0
if reachable:
s.shutdown(socket.SHUT_RDWR)
except Exception:
reachable = False
s.close()
return reachable
def logConnectionStatus(log_path: str = 'log.txt', ips: list = ['1.1.1.1'], port: int = 80, timeout: float = 2, dry_run: bool = False) -> list:
"""Log IP, time and result of a connection check
@ -50,9 +57,8 @@ def logConnectionStatus(log_path: str = 'log.txt', ips: list = ['1.1.1.1'], port
2023-01-19 07:05:02 [1.1.1.1] [OK]
"""
import time
log_lines = [ f"{time.strftime('%Y-%m-%d %H:%M:%S')} [{ip}] [{'OK' if isReachable(ip) else 'FAIL'}]" for ip in ips ]
log_lines = [
f"{time.strftime('%Y-%m-%d %H:%M:%S')} [{ip}] [{'OK' if isReachable(ip) else 'FAIL'}]" for ip in ips]
if not dry_run:
with open(log_path, 'a') as file:
@ -60,6 +66,7 @@ def logConnectionStatus(log_path: str = 'log.txt', ips: list = ['1.1.1.1'], port
return log_lines
def printOutages(log_path: str = 'log.txt'):
"""Prints out the Outages with duration and ip sorted by starttime
@ -82,7 +89,8 @@ def printOutages(log_path: str = 'log.txt'):
# cluster fails to outages
# we consider the time of subsequent failed connection attemts to the same ip an outage
outages = []; last_failed = False
outages = []
last_failed = False
for _, entries in log_by_ip.items():
for entry in entries:
if entry.failed and last_failed:
@ -94,10 +102,11 @@ def printOutages(log_path: str = 'log.txt'):
last_failed = False
# print the outages by date of first fail
for outage in sorted(outages, key = lambda x: x[0].date):
for outage in sorted(outages, key=lambda x: x[0].date):
# get duration of outage in hours and minutes
outage_duration = round((outage[-1].date - outage[0].date).seconds / 60)
outage_duration = round(
(outage[-1].date - outage[0].date).seconds / 60)
hours = outage_duration // 60
minutes = outage_duration - (hours * 60)
ip = outage[0].ip
@ -105,11 +114,10 @@ def printOutages(log_path: str = 'log.txt'):
# Outputs outages in the form of "Outage at: 2023-19-01 06:29:01 lasting for 2 Hours and 39 Minutes"
print(f"[{ip}] {outage[0].date} lasting for {'{} Hours and '.format(hours) if hours >= 1 else ''}{minutes} Minutes")
def getSanitizedArguments() -> dict:
"""Read and sanitize command line arguments"""
from sys import argv
cli_options = {}
# get command-line parameters and arguments
@ -133,7 +141,7 @@ def getSanitizedArguments() -> dict:
# 'OPTION_NAME': number of permitted arguments
# -1 means any number of arguments
permitted_options = {
'HELP': 0, 'LOG_PATH': 1, 'IP': -1, 'PORT': 1, 'TIMEOUT': 1, 'LOG': 0, 'OUTAGES': 0, 'TEST': 0
'help': 0, 'log_path': 1, 'ip': -1, 'port': 1, 'timeout': 1, 'log': 0, 'outages': 0, 'test': 0
}
# check if non supported parameters have been passed
@ -155,11 +163,11 @@ def getSanitizedArguments() -> dict:
### parameter-specific checks
# LOG_PATH has only one argument at this point so it's safe to make the list into a string
if 'LOG_PATH' in cli_options:
if 'log_path' in cli_options:
cli_options['LOG_PATH'] = cli_options['LOG_PATH'][0]
# check if all IPs are of valid format
if 'IP' in cli_options:
if 'ip' in cli_options:
for ip in cli_options['IP']:
if not isValidIP(ip):
print(f"[ERROR] '{ip}' is not a IP address.")
@ -167,7 +175,7 @@ def getSanitizedArguments() -> dict:
quit()
# check if PORT is an integer in the valid port range [0-65535]
if 'PORT' in cli_options:
if 'port' in cli_options:
try:
cli_options['PORT'] = int(cli_options['PORT'][0])
except ValueError:
@ -181,7 +189,7 @@ def getSanitizedArguments() -> dict:
quit()
# check if TIMEOUT is a valid float larger than 0
if 'TIMEOUT' in cli_options:
if 'timeout' in cli_options:
try:
cli_options['TIMEOUT'] = float(cli_options['TIMEOUT'][0])
except ValueError:
@ -195,7 +203,7 @@ def getSanitizedArguments() -> dict:
quit()
# check if HELP is has been passed
if 'HELP' in cli_options:
if 'help' in cli_options:
printHelp()
quit()
@ -206,27 +214,27 @@ def printHelp():
"""
Utility to determine the networks connection status by pinging IPs and logging the result.
--LOG_PATH path to a the file where test results should be logged
--log_path path to a the file where test results should be logged
Default: log.txt
--IP space separated list of IPs to ping and test
--ip space separated list of IPs to ping and test
Default: 1.1.1.1
--PORT set the port to use for the conneciton test
--port set the port to use for the conneciton test
Default: 80
--TIMEOUT set the timeout in seconds to use for the connection test
--timeout set the timeout in seconds to use for the connection test
Default: 2
--TEST test connection and return result to terminal
--test test connection and return result to terminal
use with --LOG to also log the result in a file
--LOG test connection and log to --LOG_PATH
--log test connection and log to --LOG_PATH
use with --TEST to also print the reult to the terminal
--OUTAGES print the dates and lenghts of outages
--outages print the dates and lenghts of outages
--HELP print this menu
--help print this menu
"""
)
@ -235,22 +243,22 @@ def main():
args = getSanitizedArguments()
# set variables based on user input or use the defaults
log_path = args['LOG_PATH'] if 'LOG_PATH' in args else 'log.txt'
ips = args['IP'] if 'IP' in args else ['1.1.1.1']
port = args['PORT'] if 'PORT' in args else 80
timeout = args['TIMEOUT'] if 'TIMEOUT' in args else 2
log_path = args['log_path'] if 'log_path' in args else 'log.txt'
ips = args['ip'] if 'ip' in args else ['1.1.1.1']
port = args['port'] if 'port' in args else 80
timeout = args['timeout'] if 'timeout' in args else 2
# perform functionality based on user input
if 'OUTAGES' in args:
if 'outages' in args:
printOutages(log_path)
if 'LOG' in args and 'TEST' in args:
if 'log' in args and 'test' in args:
for log_line in logConnectionStatus(log_path = log_path, ips = ips, port = port, timeout = timeout): print(log_line)
if 'LOG' in args and 'TEST' not in args:
if 'log' in args and 'test' not in args:
logConnectionStatus(log_path = log_path, ips = ips, port = port, timeout = timeout)
if 'TEST' in args and 'LOG' not in args:
if 'test' in args and 'log' not in args:
for log_line in logConnectionStatus(ips = ips, port = port, timeout = timeout, dry_run = True): print(log_line)