F-Secure Simulator

fs-simu.py

"""
2021-09-07 22:06:42.377 [2a88.23e0]  D: main: Debug-viesti
2021-09-07 22:06:42.377 [2a88.23e0]  I: main: Informatiivinen viesti
2021-09-07 22:06:42.377 [2a88.23e0] .W: main: Varoitusviesti
2021-09-07 22:06:42.377 [2a88.23e0] *E: main: Virheviesti
"""

from datetime import datetime
import os
import random
import time
import sys


class LogSimulator:

    def __init__(self):

        self.random_thread_ids = [
            random.randint(0x0000, 0x5000),
            random.randint(0x5001, 0xA000),
            random.randint(0xA001, 0xFFFF)
        ]

        # Intentionally from frequent to rare
        self.log_levels = [
            " D", " D", " D", " D",
            " I", " I", " I",
            ".W", ".W",
            "*E"]

        self.function_names = [
            "main",
            "foo",
            "bar",
            "barbapapa",
            "godobject",
            "pulautin",
            "tunkki",
            "kopiopasta",
            "hyrskytin",
            "silmukka",
            "olio",
            "kutkutin",
            "deleteme"]

        self.messages = [
            "lol apua",
            "muistia vuotaa",
            "kaikin puolin harmittaa",
            "kohta kaatuu?",
            "kohta kaatuu!",
            "poikkeus lennahti",
            "pelottaa",
            "puskurin ylivuoto",
            "muisti loppuu",
            "kekomuisti korruptoitunut",
            "arvelluttaa",
            "pinomuistin ylivuoto",
            "voi hiivatti!",
            "kaikki on pilalla!",
            "VIRHE!",
            "cpu hakkaa satasta",
            "havaittiin ongelma",
            "olen saavuttanut tietoisuuden ymparoivasta maailmasta",
            "aha, no sit se on just niin t. seppo papunen",
            "liike lahtee lantiosta"]

    @staticmethod
    def _timestamp():
        now = datetime.now()
        timestamp = now.strftime("%Y-%m-%d %H:%M:%S.")
        timestamp += str(now.microsecond)[0:3].rjust(3, '0')
        return timestamp

    @staticmethod
    def _process_id():
        return format(os.getpid(), 'x')[0:4].rjust(4, '0')

    def _random_thread_id(self):
        random_thread_id = random.choice(self.random_thread_ids)
        return format(random_thread_id, 'x')[0:4].rjust(4, '0')

    def _random_log_level(self):
        return random.choice(self.log_levels)

    def _random_function_name(self):
        return random.choice(self.function_names)

    def _random_message(self):
        return random.choice(self.messages)

    def random_logline(self):
        return "{} [{}.{}] {}: {}: {}".format(
            self._timestamp(),
            self._process_id(),
            self._random_thread_id(),
            self._random_log_level(),
            self._random_function_name(),
            self._random_message())


if __name__ == "__main__":
    log_file_path = "{}{}f-secure.log".format(
        os.path.expanduser("~"),
        os.path.sep)

    print("Logging into: " + log_file_path)

    simulator = LogSimulator()

    with open(log_file_path, 'w') as log_file:
        while True:
            log_line = simulator.random_logline()

            print(log_line, file=log_file)
            log_file.flush()

            print('.', end='', file=sys.stdout)
            sys.stdout.flush()

            delay = random.uniform(0.1, 5.0)
            time.sleep(delay)