import os import time import logging import threading import asyncio import datetime import json from tzlocal import get_localzone from tzlocal.utils import ZoneInfoNotFoundError from apscheduler.events import EVENT_JOB_EXECUTED from apscheduler.schedulers.background import BackgroundScheduler from apscheduler.triggers.cron import CronTrigger from app.classes.models.management import HelpersManagement from app.classes.models.users import HelperUsers from app.classes.controllers.users_controller import UsersController from app.classes.shared.console import Console from app.classes.shared.file_helpers import FileHelpers from app.classes.shared.helpers import Helpers from app.classes.shared.main_controller import Controller from app.classes.web.tornado_handler import Webserver logger = logging.getLogger("apscheduler") scheduler_intervals = { "seconds", "minutes", "hours", "days", "weeks", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday", } class TasksManager: controller: Controller def __init__(self, helper, controller): self.helper: Helpers = helper self.controller: Controller = controller self.tornado: Webserver = Webserver(helper, controller, self) try: self.tz = get_localzone() except ZoneInfoNotFoundError as e: logger.error( "Could not capture time zone from system. Falling back to Europe/London" f" error: {e}" ) self.tz = "Europe/London" self.scheduler = BackgroundScheduler(timezone=str(self.tz)) self.users_controller: UsersController = self.controller.users self.webserver_thread = threading.Thread( target=self.tornado.run_tornado, daemon=True, name="tornado_thread" ) self.main_thread_exiting = False self.schedule_thread = threading.Thread( target=self.scheduler_thread, daemon=True, name="scheduler" ) self.log_watcher_thread = threading.Thread( target=self.log_watcher, daemon=True, name="log_watcher" ) self.command_thread = threading.Thread( target=self.command_watcher, daemon=True, name="command_watcher" ) self.realtime_thread = threading.Thread( target=self.realtime, daemon=True, name="realtime" ) self.reload_schedule_from_db() def get_main_thread_run_status(self): return self.main_thread_exiting def reload_schedule_from_db(self): jobs = HelpersManagement.get_schedules_enabled() logger.info("Reload from DB called. Current enabled schedules: ") for item in jobs: logger.info(f"JOB: {item}") def command_watcher(self): while True: # select any commands waiting to be processed if not self.controller.management.command_queue.empty(): cmd = self.controller.management.command_queue.get() try: svr = self.controller.servers.get_server_instance_by_id( cmd["server_id"] ) except: logger.error( "Server value requested does not exist! " "Purging item from waiting commands." ) continue user_id = cmd["user_id"] command = cmd["command"] if command == "start_server": svr.run_threaded_server(user_id) elif command == "stop_server": svr.stop_threaded_server() elif command == "restart_server": svr.restart_threaded_server(user_id) elif command == "kill_server": try: svr.kill() time.sleep(5) svr.cleanup_server_object() svr.record_server_stats() except Exception as e: logger.error( f"Could not find PID for requested termsig. Full error: {e}" ) elif command == "backup_server": svr.backup_server() elif command == "update_executable": svr.jar_update() else: svr.send_command(command) time.sleep(1) def _main_graceful_exit(self): try: os.remove(self.helper.session_file) self.controller.servers.stop_all_servers() except: logger.info("Caught error during shutdown", exc_info=True) try: temp_dir = os.path.join(self.controller.project_root, "temp") FileHelpers.del_dirs(temp_dir) except: logger.info( "Caught error during shutdown - " "unable to delete files from Crafty Temp Dir", exc_info=True, ) logger.info("***** Crafty Shutting Down *****\n\n") Console.info("***** Crafty Shutting Down *****\n\n") self.main_thread_exiting = True def start_webserver(self): self.webserver_thread.start() def reload_webserver(self): self.tornado.stop_web_server() Console.info("Waiting 3 seconds") time.sleep(3) self.webserver_thread = threading.Thread( target=self.tornado.run_tornado, daemon=True, name="tornado_thread" ) self.start_webserver() def stop_webserver(self): self.tornado.stop_web_server() def start_scheduler(self): logger.info("Launching Scheduler Thread...") Console.info("Launching Scheduler Thread...") self.schedule_thread.start() logger.info("Launching command thread...") Console.info("Launching command thread...") self.command_thread.start() logger.info("Launching log watcher...") Console.info("Launching log watcher...") self.log_watcher_thread.start() logger.info("Launching realtime thread...") Console.info("Launching realtime thread...") self.realtime_thread.start() def scheduler_thread(self): schedules = HelpersManagement.get_schedules_enabled() self.scheduler.add_listener(self.schedule_watcher, mask=EVENT_JOB_EXECUTED) self.scheduler.start() self.check_for_updates() self.scheduler.add_job( self.check_for_updates, "interval", hours=12, id="update_watcher", start_date=datetime.datetime.now(), ) # self.scheduler.add_job( # self.scheduler.print_jobs, "interval", seconds=10, id="-1" # ) # load schedules from DB for schedule in schedules: if schedule.interval != "reaction": new_job = "error" if schedule.cron_string != "": try: new_job = self.scheduler.add_job( self.controller.management.queue_command, CronTrigger.from_crontab( schedule.cron_string, timezone=str(self.tz) ), id=str(schedule.schedule_id), args=[ { "server_id": schedule.server_id.server_id, "user_id": self.users_controller.get_id_by_name( "system" ), "command": schedule.command, } ], ) except Exception as e: new_job = "error" Console.error(f"Failed to schedule task with error: {e}.") Console.warning("Removing failed task from DB.") logger.error(f"Failed to schedule task with error: {e}.") logger.warning("Removing failed task from DB.") # remove items from DB if task fails to add to apscheduler self.controller.management_helper.delete_scheduled_task( schedule.schedule_id ) else: if schedule.interval_type == "hours": new_job = self.scheduler.add_job( self.controller.management.queue_command, "cron", minute=0, hour="*/" + str(schedule.interval), id=str(schedule.schedule_id), args=[ { "server_id": schedule.server_id.server_id, "user_id": self.users_controller.get_id_by_name( "system" ), "command": schedule.command, } ], ) elif schedule.interval_type == "minutes": new_job = self.scheduler.add_job( self.controller.management.queue_command, "cron", minute="*/" + str(schedule.interval), id=str(schedule.schedule_id), args=[ { "server_id": schedule.server_id.server_id, "user_id": self.users_controller.get_id_by_name( "system" ), "command": schedule.command, } ], ) elif schedule.interval_type == "days": curr_time = schedule.start_time.split(":") new_job = self.scheduler.add_job( self.controller.management.queue_command, "cron", day="*/" + str(schedule.interval), hour=curr_time[0], minute=curr_time[1], id=str(schedule.schedule_id), args=[ { "server_id": schedule.server_id.server_id, "user_id": self.users_controller.get_id_by_name( "system" ), "command": schedule.command, } ], ) if new_job != "error": task = self.controller.management.get_scheduled_task_model( int(new_job.id) ) self.controller.management.update_scheduled_task( task.schedule_id, { "next_run": str( new_job.next_run_time.strftime("%m/%d/%Y, %H:%M:%S") ) }, ) jobs = self.scheduler.get_jobs() logger.info("Loaded schedules. Current enabled schedules: ") for item in jobs: logger.info(f"JOB: {item}") def schedule_job(self, job_data): sch_id = HelpersManagement.create_scheduled_task( job_data["server_id"], job_data["action"], job_data["interval"], job_data["interval_type"], job_data["start_time"], job_data["command"], job_data["name"], job_data["enabled"], job_data["one_time"], job_data["cron_string"], job_data["parent"], job_data["delay"], ) # Checks to make sure some doofus didn't actually make the newly # created task a child of itself. if str(job_data["parent"]) == str(sch_id): HelpersManagement.update_scheduled_task(sch_id, {"parent": None}) # Check to see if it's enabled and is not a chain reaction. if job_data["enabled"] and job_data["interval_type"] != "reaction": new_job = "error" if job_data["cron_string"] != "": try: new_job = self.scheduler.add_job( self.controller.management.queue_command, CronTrigger.from_crontab( job_data["cron_string"], timezone=str(self.tz) ), id=str(sch_id), args=[ { "server_id": job_data["server_id"], "user_id": self.users_controller.get_id_by_name( "system" ), "command": job_data["command"], } ], ) except Exception as e: new_job = "error" Console.error(f"Failed to schedule task with error: {e}.") Console.warning("Removing failed task from DB.") logger.error(f"Failed to schedule task with error: {e}.") logger.warning("Removing failed task from DB.") # remove items from DB if task fails to add to apscheduler self.controller.management_helper.delete_scheduled_task(sch_id) else: if job_data["interval_type"] == "hours": new_job = self.scheduler.add_job( self.controller.management.queue_command, "cron", minute=0, hour="*/" + str(job_data["interval"]), id=str(sch_id), args=[ { "server_id": job_data["server_id"], "user_id": self.users_controller.get_id_by_name( "system" ), "command": job_data["command"], } ], ) elif job_data["interval_type"] == "minutes": new_job = self.scheduler.add_job( self.controller.management.queue_command, "cron", minute="*/" + str(job_data["interval"]), id=str(sch_id), args=[ { "server_id": job_data["server_id"], "user_id": self.users_controller.get_id_by_name( "system" ), "command": job_data["command"], } ], ) elif job_data["interval_type"] == "days": curr_time = job_data["start_time"].split(":") new_job = self.scheduler.add_job( self.controller.management.queue_command, "cron", day="*/" + str(job_data["interval"]), hour=curr_time[0], minute=curr_time[1], id=str(sch_id), args=[ { "server_id": job_data["server_id"], "user_id": self.users_controller.get_id_by_name( "system" ), "command": job_data["command"], } ], ) logger.info("Added job. Current enabled schedules: ") jobs = self.scheduler.get_jobs() if new_job != "error": task = self.controller.management.get_scheduled_task_model( int(new_job.id) ) self.controller.management.update_scheduled_task( task.schedule_id, {"next_run": new_job.next_run_time.strftime("%m/%d/%Y, %H:%M:%S")}, ) for item in jobs: logger.info(f"JOB: {item}") return task.schedule_id def remove_all_server_tasks(self, server_id): schedules = HelpersManagement.get_schedules_by_server(server_id) for schedule in schedules: if schedule.interval != "reaction": self.remove_job(schedule.schedule_id) def remove_job(self, sch_id): job = HelpersManagement.get_scheduled_task_model(sch_id) for schedule in HelpersManagement.get_child_schedules(sch_id): self.controller.management_helper.update_scheduled_task( schedule.schedule_id, {"parent": None} ) self.controller.management_helper.delete_scheduled_task(sch_id) if job.enabled and job.interval_type != "reaction": self.scheduler.remove_job(str(sch_id)) logger.info(f"Job with ID {sch_id} was deleted.") else: logger.info( f"Job with ID {sch_id} was deleted from DB, but was not enabled." f"Not going to try removing something " f"that doesn't exist from active schedules." ) def update_job(self, sch_id, job_data): # Checks to make sure some doofus didn't actually make the newly # created task a child of itself. if str(job_data.get("parent")) == str(sch_id): job_data["parent"] = None HelpersManagement.update_scheduled_task(sch_id, job_data) if not ( "interval" in job_data and "enabled" in job_data and "cron_string" in job_data and "interval_type" in job_data ): if not "enabled" in job_data: return if job_data["enabled"] is True: job_data = HelpersManagement.get_scheduled_task(sch_id) job_data["server_id"] = job_data["server_id"]["server_id"] else: self.scheduler.remove_job(str(sch_id)) return try: if job_data["interval"] != "reaction": self.scheduler.remove_job(str(sch_id)) except: logger.info( "No job found in update job. " "Assuming it was previously disabled. Starting new job." ) if job_data["enabled"] and job_data["interval"] != "reaction": new_job = "error" if job_data["cron_string"] != "": try: new_job = self.scheduler.add_job( self.controller.management.queue_command, CronTrigger.from_crontab( job_data["cron_string"], timezone=str(self.tz) ), id=str(sch_id), args=[ { "server_id": job_data["server_id"], "user_id": self.users_controller.get_id_by_name( "system" ), "command": job_data["command"], } ], ) except Exception as e: new_job = "error" Console.error(f"Failed to schedule task with error: {e}.") Console.info("Removing failed task from DB.") self.controller.management_helper.delete_scheduled_task(sch_id) else: if job_data["interval_type"] == "hours": new_job = self.scheduler.add_job( self.controller.management.queue_command, "cron", minute=0, hour="*/" + str(job_data["interval"]), id=str(sch_id), args=[ { "server_id": job_data["server_id"], "user_id": self.users_controller.get_id_by_name( "system" ), "command": job_data["command"], } ], ) elif job_data["interval_type"] == "minutes": new_job = self.scheduler.add_job( self.controller.management.queue_command, "cron", minute="*/" + str(job_data["interval"]), id=str(sch_id), args=[ { "server_id": job_data["server_id"], "user_id": self.users_controller.get_id_by_name( "system" ), "command": job_data["command"], } ], ) elif job_data["interval_type"] == "days": curr_time = job_data["start_time"].split(":") new_job = self.scheduler.add_job( self.controller.management.queue_command, "cron", day="*/" + str(job_data["interval"]), hour=curr_time[0], minute=curr_time[1], id=str(sch_id), args=[ { "server_id": job_data["server_id"], "user_id": self.users_controller.get_id_by_name( "system" ), "command": job_data["command"], } ], ) if new_job != "error": task = self.controller.management.get_scheduled_task_model( int(new_job.id) ) self.controller.management.update_scheduled_task( task.schedule_id, {"next_run": new_job.next_run_time.strftime("%m/%d/%Y, %H:%M:%S")}, ) else: try: self.scheduler.get_job(str(sch_id)) self.scheduler.remove_job(str(sch_id)) except: logger.info( f"APScheduler found no scheduled job on schedule update for " f"schedule with id: {sch_id} Assuming it was already disabled." ) def schedule_watcher(self, event): if not event.exception: if str(event.job_id).isnumeric(): task = self.controller.management.get_scheduled_task_model( int(event.job_id) ) self.controller.management.add_to_audit_log_raw( "system", HelperUsers.get_user_id_by_name("system"), task.server_id, f"Task with id {task.schedule_id} completed successfully", "127.0.0.1", ) # check if the task is a single run. if task.one_time: self.remove_job(task.schedule_id) logger.info("one time task detected. Deleting...") elif task.interval_type != "reaction": self.controller.management.update_scheduled_task( task.schedule_id, { "next_run": self.scheduler.get_job( event.job_id ).next_run_time.strftime("%m/%d/%Y, %H:%M:%S") }, ) # check for any child tasks for this. It's kind of backward, # but this makes DB management a lot easier. One to one # instead of one to many. for schedule in HelpersManagement.get_child_schedules_by_server( task.schedule_id, task.server_id ): # event job ID's are strings so we need to look at # this as the same data type. if str(schedule.parent) == str(event.job_id): if schedule.enabled: delaytime = datetime.datetime.now() + datetime.timedelta( seconds=schedule.delay ) self.scheduler.add_job( self.controller.management.queue_command, "date", run_date=delaytime, id=str(schedule.schedule_id), args=[ { "server_id": schedule.server_id.server_id, "user_id": self.users_controller.get_id_by_name( "system" ), "command": schedule.command, } ], ) else: logger.info( "Event job ID is not numerical. Assuming it's stats " "- not stored in DB. Moving on." ) else: logger.error(f"Task failed with error: {event.exception}") def start_stats_recording(self): stats_update_frequency = self.helper.get_setting( "stats_update_frequency_seconds" ) logger.info( f"Stats collection frequency set to {stats_update_frequency} seconds" ) Console.info( f"Stats collection frequency set to {stats_update_frequency} seconds" ) # one for now, self.controller.servers.stats.record_stats() # one for later self.scheduler.add_job( self.controller.servers.stats.record_stats, "interval", seconds=stats_update_frequency, id="stats", ) def serverjar_cache_refresher(self): logger.info("Refreshing serverjars.com cache on start") self.controller.server_jars.refresh_cache() logger.info("Scheduling Serverjars.com cache refresh service every 12 hours") self.scheduler.add_job( self.controller.server_jars.refresh_cache, "interval", hours=12, id="serverjars", ) def realtime(self): loop = asyncio.new_event_loop() asyncio.set_event_loop(loop) host_stats = HelpersManagement.get_latest_hosts_stats() while True: if host_stats.get( "cpu_usage" ) != HelpersManagement.get_latest_hosts_stats().get( "cpu_usage" ) or host_stats.get( "mem_percent" ) != HelpersManagement.get_latest_hosts_stats().get( "mem_percent" ): # Stats are different host_stats = HelpersManagement.get_latest_hosts_stats() if len(self.helper.websocket_helper.clients) > 0: # There are clients try: self.helper.websocket_helper.broadcast_page( "/panel/dashboard", "update_host_stats", { "cpu_usage": host_stats.get("cpu_usage"), "cpu_cores": host_stats.get("cpu_cores"), "cpu_cur_freq": host_stats.get("cpu_cur_freq"), "cpu_max_freq": host_stats.get("cpu_max_freq"), "mem_percent": host_stats.get("mem_percent"), "mem_usage": host_stats.get("mem_usage"), "disk_usage": json.loads( host_stats.get("disk_json").replace("'", '"') ), "mounts": self.helper.get_setting("monitored_mounts"), }, ) except: self.helper.websocket_helper.broadcast_page( "/panel/dashboard", "update_host_stats", { "cpu_usage": host_stats.get("cpu_usage"), "cpu_cores": host_stats.get("cpu_cores"), "cpu_cur_freq": host_stats.get("cpu_cur_freq"), "cpu_max_freq": host_stats.get("cpu_max_freq"), "mem_percent": host_stats.get("mem_percent"), "mem_usage": host_stats.get("mem_usage"), "disk_usage": {}, }, ) time.sleep(1) def check_for_updates(self): logger.info("Checking for Crafty updates...") self.helper.update_available = self.helper.check_remote_version() if self.helper.update_available: logger.info(f"Found new version {self.helper.update_available}") else: logger.info( "No updates found! You are on the most up to date Crafty version." ) logger.info("Refreshing Gravatar PFPs...") for user in HelperUsers.get_all_users(): if user.email: HelperUsers.update_user( user.id, {"pfp": self.helper.get_gravatar_image(user.email)} ) # Search for old files in imports self.helper.ensure_dir_exists( os.path.join(self.controller.project_root, "imports") ) for file in os.listdir(os.path.join(self.controller.project_root, "imports")): if self.helper.is_file_older_than_x_days( os.path.join(self.controller.project_root, "imports", file) ): try: os.remove(os.path.join(file)) except: logger.debug("Could not clear out file from import directory") def log_watcher(self): self.check_for_old_logs() self.scheduler.add_job( self.check_for_old_logs, "interval", hours=6, id="log-mgmt", ) def check_for_old_logs(self): # check for server logs first self.controller.servers.check_for_old_logs() try: # check for crafty logs now logs_path = os.path.join(self.controller.project_root, "logs") logs_delete_after = int( self.helper.get_setting("crafty_logs_delete_after_days") ) latest_log_files = [ "session.log", "schedule.log", "tornado-access.log", "session.log", "commander.log", ] # we won't delete if delete logs after is set to 0 if logs_delete_after != 0: log_files = list( filter( lambda val: val not in latest_log_files, os.listdir(logs_path), ) ) for log_file in log_files: log_file_path = os.path.join(logs_path, log_file) if Helpers.check_file_exists( log_file_path ) and Helpers.is_file_older_than_x_days( log_file_path, logs_delete_after ): os.remove(log_file_path) except: logger.debug( "Unable to find project root." " If this issue persists please contact support." )