#!/usr/bin/python3 # -*- coding: utf-8 -*- # Author: İsmail BAŞARAN # Author: Volkan Şahin import json import os import queue import signal import sys import threading import time from multiprocessing import Process from base.Scope import Scope from base.agreement.agreement import Agreement from base.command.commander import Commander from base.config.ConfigManager import ConfigManager from base.database.AhenkDbService import AhenkDbService from base.deamon.BaseDeamon import BaseDaemon from base.event.EventManager import EventManager from base.execution.ExecutionManager import ExecutionManager from base.logger.AhenkLogger import Logger from base.messaging.MessageResponseQueue import MessageResponseQueue from base.messaging.Messaging import Messaging from base.messaging.Messenger import Messenger from base.plugin.plugin_manager_factory import PluginManagerFactory from base.registration.Registration import Registration from base.scheduler.scheduler_factory import SchedulerFactory from base.system.system import System from base.task.TaskManager import TaskManager from base.timer.setup_timer import SetupTimer from base.timer.timer import Timer from base.util.util import Util ahenkdaemon = None class AhenkDeamon(BaseDaemon): """docstring for AhenkDeamon""" def reload(self): # reload service here pass def init_logger(self): logger = Logger() logger.info('[AhenkDeamon] Log was set') Scope.getInstance().setLogger(logger) return logger def init_config_manager(self, configFilePath, configfileFolderPath): configManager = ConfigManager(configFilePath, configfileFolderPath) config = configManager.read() Scope.getInstance().setConfigurationManager(config) return config def init_scheduler(self): scheduler_ins = SchedulerFactory.get_intstance() scheduler_ins.initialize() Scope.getInstance().set_scheduler(scheduler_ins) sc_thread = threading.Thread(target=scheduler_ins.run) sc_thread.setDaemon(True) sc_thread.start() return scheduler_ins def init_event_manager(self): eventManager = EventManager() Scope.getInstance().setEventManager(eventManager) return eventManager def init_ahenk_db(self): db_service = AhenkDbService() db_service.connect() db_service.initialize_table() Scope.getInstance().setDbService(db_service) return db_service def init_messaging(self): messageManager = Messaging() Scope.getInstance().setMessageManager(messageManager) return messageManager def init_plugin_manager(self): pluginManager = PluginManagerFactory.get_instance() Scope.getInstance().setPluginManager(pluginManager) # order changed, problem? pluginManager.load_plugins() return pluginManager def init_task_manager(self): taskManager = TaskManager() Scope.getInstance().setTaskManager(taskManager) return taskManager def init_registration(self): registration = Registration() Scope.getInstance().setRegistration(registration) return registration def init_execution_manager(self): execution_manager = ExecutionManager() Scope.getInstance().setExecutionManager(execution_manager) return execution_manager def init_messenger(self): messenger = Messenger() messenger.connect_to_server() Scope.getInstance().setMessenger(messenger) return messenger def init_message_response_queue(self): responseQueue = queue.Queue() messageResponseQueue = MessageResponseQueue(responseQueue) messageResponseQueue.setDaemon(True) messageResponseQueue.start() Scope.getInstance().setResponseQueue(responseQueue) return responseQueue def check_registration(self): max_attemp_number = int(System.Hardware.Network.interface_size()) * 3 logger = Scope.getInstance().getLogger() registration = Scope.getInstance().getRegistration() try: while registration.is_registered() is False: max_attemp_number -= 1 logger.debug('[AhenkDeamon] Ahenk is not registered. Attempting for registration') registration.registration_request() if max_attemp_number < 0: logger.warning('[AhenkDeamon] Number of Attempting for registration is over') self.registration_failed() break except Exception as e: logger.error('[AhenkDeamon] Registration failed. Error message: {}'.format(str(e))) def shutdown_mode(self): scope = Scope().getInstance() plugin_manager = scope.getPluginManager() plugin_manager.process_mode('shutdown') def registration_failed(self): self.logger.error('[AhenkDeamon] Registration failed. All registration attemps were failed. Ahenk is stopping...') print('Registration failed. Ahenk is stopping..') ahenkdaemon.stop() def reload_plugins(self): Scope.getInstance().getPluginManager().reloadPlugins() def reload_configuration(self): # Not implemented yet pass def reload_messaging(self): # Not implemented yet pass def reload_logger(self): # Not implemented yet pass def update_plugin_manager(self): # TODO destroy plugin manager here self.init_plugin_manager() def init_signal_listener(self): try: signal.signal(signal.SIGALRM, self.run_command_from_fifo) self.logger.info('[AhenkDeamon] Signal handler is set up') except Exception as e: self.logger.error('[AhenkDeamon] Signal handler could not set up. Error Message: {} '.format(str(e))) def init_pid_file(self): with open(System.Ahenk.pid_path(), 'w+') as f: f.write(str(os.getpid())) def run(self): print('Ahenk running...') globalscope = Scope() globalscope.setInstance(globalscope) configfileFolderPath = '/etc/ahenk/config.d/' # configuration manager must be first load self.init_config_manager(System.Ahenk.config_path(), configfileFolderPath) # Logger must be second self.logger = self.init_logger() self.init_pid_file() self.logger.info('[AhenkDeamon] Pid file was created') self.init_event_manager() self.logger.info('[AhenkDeamon] Event Manager was set') self.init_ahenk_db() self.logger.info('[AhenkDeamon] DataBase Service was set') self.init_messaging() self.logger.info('[AhenkDeamon] Message Manager was set') self.init_plugin_manager() self.logger.info('[AhenkDeamon] Plugin Manager was set') self.init_scheduler() self.logger.info('[AhenkDeamon] Scheduler was set') self.init_task_manager() self.logger.info('[AhenkDeamon] Task Manager was set') self.init_registration() self.logger.info('[AhenkDeamon] Registration was set') self.init_execution_manager() self.logger.info('[AhenkDeamon] Execution Manager was set') self.check_registration() self.logger.info('[AhenkDeamon] Ahenk was registered') self.messenger = self.init_messenger() self.logger.info('[AhenkDeamon] Messenger was set') self.init_signal_listener() self.logger.info('[AhenkDeamon] Signals listeners was set') Agreement().agreement_contract_update() self.init_message_response_queue() # if registration.is_ldap_registered() is False: # logger.debug('[AhenkDeamon] Attempting to registering ldap') # registration.ldap_registration_request() #TODO work on message self.logger.info('[AhenkDeamon] LDAP registration of Ahenk is completed') self.messenger.send_direct_message('test') while True: # if messager.is_connected() is False: # self.logger.debug('reconnecting') # Scope.getInstance().getLogger().warning('[AhenkDeamon] Connection is lost. Ahenk is trying for reconnection') # messager = self.init_messager() time.sleep(1) def running_plugin(self): scope = Scope().getInstance() plugin_manager = scope.getPluginManager() for plugin in plugin_manager.plugins: if plugin.keep_run is True: return False return True def run_command_from_fifo(self, num, stack): scope = Scope().getInstance() plugin_manager = scope.getPluginManager() message_manager = scope.getMessageManager() messenger = scope.getMessenger() conf_manager = scope.getConfigurationManager() db_service = scope.getDbService() execute_manager = scope.getExecutionManager() try: json_data = json.loads(Commander().get_event()) except Exception as e: self.logger.error('[AhenkDeamon] A problem occurred while loading json. Check json format! Error Message: {0}'.format(str(e))) return if json_data is not None: self.logger.debug('[AhenkDeamon] Signal handled') self.logger.debug('[AhenkDeamon] Signal is :{}'.format(str(json_data['event']))) if 'login' == str(json_data['event']): username = json_data['username'] display = json_data['display'] desktop = json_data['desktop'] self.logger.info('[AhenkDeamon] login event is handled for user: {}'.format(username)) login_message = message_manager.login_msg(username) messenger.send_direct_message(login_message) agreement = Agreement() agreement_choice = None if agreement.check_agreement(username) is not True: self.logger.debug('[AhenkDeamon] User {} has not accepted agreement.'.format(username)) thread_ask = Process(target=agreement.ask, args=(username, display,)) thread_ask.start() agreement_timeout = conf_manager.get('SESSION', 'agreement_timeout') timeout = int(agreement_timeout) # sec timer = time.time() while 1: if thread_ask.is_alive() is False: self.logger.warning('[AhenkDeamon] {} was answered the question '.format(username)) if Agreement().check_agreement(username) is True: self.logger.warning('[AhenkDeamon] Choice of {} is YES'.format(username)) agreement_choice = True break elif Agreement().check_agreement(username) is False: self.logger.warning('[AhenkDeamon] Choice of {} is NO'.format(username)) agreement_choice = False Util.execute('pkill -9 -u {}'.format(username)) break if (time.time() - timer) > timeout: if thread_ask.is_alive(): thread_ask.terminate() Util.execute('pkill -9 -u {}'.format(username)) self.logger.warning('[AhenkDeamon] Session of {} was ended because of timeout of contract agreement'.format(username)) break time.sleep(1) if agreement_choice is not None: messenger.send_direct_message(message_manager.agreement_answer_msg(username, agreement_choice)) else: agreement_choice = True if agreement_choice is True: db_service.delete('session', 'username=\'{0}\''.format(username)) self.logger.info('[AhenkDeamon] Display is {0}, desktop env is {1} for {2}'.format(display, desktop, username)) db_service.update('session', scope.getDbService().get_cols('session'), [username, display, desktop, Util.timestamp()]) get_policy_message = message_manager.policy_request_msg(username) plugin_manager.process_mode('safe', username) plugin_manager.process_mode('login', username) kward = {} kward['timeout_args'] = username kward['checker_args'] = username SetupTimer.start(Timer(timeout=System.Ahenk.get_policy_timeout(), timeout_function=execute_manager.execute_default_policy, checker_func=execute_manager.is_policy_executed, kwargs=kward)) self.logger.info('[AhenkDeamon] Requesting updated policies from Lider. If Ahenk could not reach updated policies in {0} sec, booked policies will be executed'.format(System.Ahenk.get_policy_timeout())) messenger.send_direct_message(get_policy_message) elif 'logout' == str(json_data['event']): username = json_data['username'] db_service.delete('session', 'username=\'{}\''.format(username)) execute_manager.remove_user_executed_policy_dict(username) # TODO delete all user records while initializing self.logger.info('[AhenkDeamon] logout event is handled for user: {}'.format(username)) logout_message = message_manager.logout_msg(username) messenger.send_direct_message(logout_message) plugin_manager.process_mode('logout', username) plugin_manager.process_mode('safe', username) elif 'send' == str(json_data['event']): self.logger.info('[AhenkDeamon] Sending message over ahenkd command. Response Message: {}'.format(json.dumps(json_data['message']))) message = json.dumps(json_data['message']) messenger.send_direct_message(message) elif 'load' == str(json_data['event']): plugin_name = str(json_data['plugins']) if plugin_name == 'all': self.logger.debug('[AhenkDeamon] All plugins are loading to ahenk') plugin_manager.load_plugins() else: for p_name in plugin_name.split(','): self.logger.debug('[AhenkDeamon] {} plugin is loading to ahenk'.format(p_name)) plugin_manager.load_single_plugin(p_name) elif 'reload' == str(json_data['event']): plugin_name = str(json_data['plugins']) if plugin_name == 'all': self.logger.debug('[AhenkDeamon] All plugins are reloading to ahenk') plugin_manager.reload_plugins() else: for p_name in plugin_name.split(','): self.logger.debug('[AhenkDeamon] {} plugin is reloading to ahenk'.format(p_name)) plugin_manager.reload_single_plugin(p_name) elif 'remove' == str(json_data['event']): plugin_name = str(json_data['plugins']) if plugin_name == 'all': self.logger.debug('[AhenkDeamon] All plugins are removing from ahenk') plugin_manager.remove_plugins() else: for p_name in plugin_name.split(','): self.logger.debug('[AhenkDeamon] {} plugin is removing from ahenk'.format(p_name)) plugin_manager.remove_single_plugin(p_name) elif 'stop' == str(json_data['event']): self.shutdown_mode() self.logger.info('[AhenkDeamon] Shutdown mode activated.') # TODO timeout while self.running_plugin() is False: self.logger.debug('[AhenkDeamon] Waiting for progress of plugins...') time.sleep(0.5) ahenkdaemon.stop() else: self.logger.error('[AhenkDeamon] Unknown command error. Command:' + json_data['event']) self.logger.debug('[AhenkDeamon] Processing of handled event is completed') return True else: return False if __name__ == '__main__': ahenkdaemon = AhenkDeamon(System.Ahenk.pid_path()) try: if len(sys.argv) == 2 and (sys.argv[1] in ('start', 'stop', 'restart', 'status')): if sys.argv[1] == 'start': if System.Ahenk.is_running() is True: print('There is already running Ahenk service. It will be killed.[{}]'.format(str(System.Ahenk.get_pid_number()))) System.Process.kill_by_pid(int(System.Ahenk.get_pid_number())) else: print('Ahenk starting...') ahenkdaemon.run() elif sys.argv[1] == 'stop': if System.Ahenk.is_running() is True: raise SystemExit else: print('Ahenk not working!') elif sys.argv[1] == 'restart': if System.Ahenk.is_running() is True: print('Ahenk restarting...') ahenkdaemon.restart() else: print('Ahenk starting...') ahenkdaemon.run() elif sys.argv[1] == 'status': print(Commander().status()) else: print('Unknown command. Usage : %s start|stop|restart|status|clean' % sys.argv[0]) sys.exit(2) else: result = Commander().set_event(sys.argv) if result is None: print('Usage : {0} start|stop|restart|status|clean'.format(sys.argv[0])) sys.exit(2) elif result is True: if System.Ahenk.is_running() is True: os.kill(int(System.Ahenk.get_pid_number()), signal.SIGALRM) except(KeyboardInterrupt, SystemExit): if System.Ahenk.is_running() is True: print('Ahenk stopping...') result = Commander().set_event([None, 'stop']) if result is True: if System.Ahenk.is_running() is True: os.kill(int(System.Ahenk.get_pid_number()), signal.SIGALRM) else: ahenkdaemon.stop()