crafty-4/main.py

import os
import sys
import json
import time
import argparse
import logging.config
import signal
from app.classes.shared.console import console
from app.classes.shared.helpers import helper

if helper.checkRoot():
    console.critical(
        "Root detected. Root/Admin access denied. "
        "Run Crafty again with non-elevated permissions."
    )
    time.sleep(5)
    console.critical("Crafty shutting down. Root/Admin access denied.")
    sys.exit(0)
# pylint: disable=wrong-import-position
from app.classes.shared.main_models import installer, database
from app.classes.shared.tasks import TasksManager
from app.classes.shared.main_controller import Controller
from app.classes.shared.migration import MigrationManager

from app.classes.shared.command import MainPrompt


def do_intro():
    logger.info("***** Crafty Controller Started *****")

    version = helper.get_version_string()

    intro = f"""
    {'/' * 75}
    #{("Welcome to Crafty Controller - v." + version).center(73, " ")}#
    {'/' * 75}
    #{"Server Manager / Web Portal for your Minecraft server".center(73, " ")}#
    #{"Homepage: www.craftycontrol.com".center(73, " ")}#
    {'/' * 75}
    """

    console.magenta(intro)


def setup_logging(debug=True):
    logging_config_file = os.path.join(os.path.curdir, "app", "config", "logging.json")

    if os.path.exists(logging_config_file):
        # open our logging config file
        with open(logging_config_file, "rt", encoding="utf-8") as f:
            logging_config = json.load(f)
            if debug:
                logging_config["loggers"][""]["level"] = "DEBUG"

            logging.config.dictConfig(logging_config)

    else:
        logging.basicConfig(level=logging.DEBUG)
        logging.warning(f"Unable to read logging config from {logging_config_file}")
        console.critical(f"Unable to read logging config from {logging_config_file}")


# Our Main Starter
if __name__ == "__main__":
    parser = argparse.ArgumentParser("Crafty Controller - A Server Management System")

    parser.add_argument(
        "-i", "--ignore", action="store_true", help="Ignore session.lock files"
    )

    parser.add_argument(
        "-v", "--verbose", action="store_true", help="Sets logging level to debug."
    )

    parser.add_argument(
        "-d",
        "--daemon",
        action="store_true",
        help="Runs Crafty in daemon mode (no prompt)",
    )

    args = parser.parse_args()

    helper.ensure_logging_setup()

    setup_logging(debug=args.verbose)

    # setting up the logger object
    logger = logging.getLogger(__name__)
    console.cyan(f"Logging set to: {logger.level}")

    # print our pretty start message
    do_intro()

    # our session file, helps prevent multiple controller agents on the same machine.
    helper.create_session_file(ignore=args.ignore)

    migration_manager = MigrationManager(database)
    migration_manager.up()  # Automatically runs migrations

    # do our installer stuff
    fresh_install = installer.is_fresh_install()

    if fresh_install:
        console.debug("Fresh install detected")
        console.warning(
            f"We have detected a fresh install. Please be sure to forward "
            f"Crafty's port, {helper.get_setting('https_port')}, "
            f"through your router/firewall if you would like to be able "
            f"to access Crafty remotely."
        )
        installer.default_settings()
    else:
        console.debug("Existing install detected")

    # now the tables are created, we can load the tasks_manger and server controller
    controller = Controller()
    tasks_manager = TasksManager(controller)
    tasks_manager.start_webserver()

    # slowing down reporting just for a 1/2 second so messages look cleaner
    time.sleep(0.5)

    # init servers
    logger.info("Initializing all servers defined")
    console.info("Initializing all servers defined")
    controller.init_all_servers()
    servers = controller.list_defined_servers()

    # start stats logging
    tasks_manager.start_stats_recording()

    # once the controller is up and stats are logging, we can kick off
    # the scheduler officially
    tasks_manager.start_scheduler()

    # refresh our cache and schedule for every 12 hoursour cache refresh
    # for serverjars.com
    tasks_manager.serverjar_cache_refresher()

    logger.info("Checking Internet. This may take a minute.")
    console.info("Checking Internet. This may take a minute.")

    if not helper.check_internet():
        console.warning(
            "We have detected the machine running Crafty has no "
            "connection to the internet. Client connections to "
            "the server may be limited."
        )

    if not controller.check_system_user():
        controller.add_system_user()

    Crafty = MainPrompt(tasks_manager, migration_manager)

    project_root = os.path.dirname(__file__)
    controller.set_project_root(project_root)
    controller.clear_unexecuted_commands()
    controller.clear_support_status()

    def sigterm_handler(*sig):
        print()  # for newline
        logger.info(
            f"Recieved {signal.Signals(sig[0]).name} [{sig[0]}], stopping Crafty..."
        )
        console.info(
            f"Recieved {signal.Signals(sig[0]).name} [{sig[0]}], stopping Crafty..."
        )
        tasks_manager._main_graceful_exit()
        Crafty.universal_exit()

    signal.signal(signal.SIGTERM, sigterm_handler)

    if not args.daemon:
        try:
            Crafty.cmdloop()
        except KeyboardInterrupt:
            print()  # for newline
            logger.info("Recieved SIGINT, stopping Crafty...")
            console.info("Recieved SIGINT, stopping Crafty...")
            tasks_manager._main_graceful_exit()
            Crafty.universal_exit()
    else:
        print("Crafty started in daemon mode, no shell will be printed")
        while True:
            try:
                if tasks_manager.get_main_thread_run_status():
                    break
                time.sleep(1)
            except KeyboardInterrupt:
                logger.info("Recieved SIGINT, stopping Crafty...")
                console.info("Recieved SIGINT, stopping Crafty...")
                break
        tasks_manager._main_graceful_exit()
        Crafty.universal_exit()