302 lines
10 KiB
Python
Executable File
302 lines
10 KiB
Python
Executable File
#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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# Author: İsmail BAŞARAN <ismail.basaran@tubitak.gov.tr> <basaran.ismaill@gmail.com>
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# Author: Volkan Şahin <volkansah.in> <bm.volkansahin@gmail.com>
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import configparser
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import os
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import queue
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import signal
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import sys
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import threading
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import time
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from base.Scope import Scope
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from base.config.ConfigManager import ConfigManager
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from base.database.AhenkDbService import AhenkDbService
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from base.deamon.BaseDeamon import BaseDaemon
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from base.event.EventManager import EventManager
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from base.execution.ExecutionManager import ExecutionManager
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from base.logger.AhenkLogger import Logger
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from base.messaging.MessageResponseQueue import MessageResponseQueue
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from base.messaging.Messager import Messager
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from base.messaging.Messaging import Messaging
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from base.plugin.plugin_manager_factory import PluginManagerFactory
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from base.registration.Registration import Registration
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from base.scheduler.scheduler_factory import SchedulerFactory
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from base.task.TaskManager import TaskManager
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pidfilePath = '/var/run/ahenk.pid'
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class AhenkDeamon(BaseDaemon):
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"""docstring for AhenkDeamon"""
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def reload(self):
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# reload service here
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pass
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def init_logger(self):
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logger = Logger()
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logger.info('[AhenkDeamon] Log was set')
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Scope.getInstance().setLogger(logger)
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return logger
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def init_config_manager(self, configFilePath, configfileFolderPath):
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configManager = ConfigManager(configFilePath, configfileFolderPath)
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config = configManager.read()
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Scope.getInstance().setConfigurationManager(config)
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return config
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def init_scheduler(self):
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scheduler_ins = SchedulerFactory.get_intstance()
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scheduler_ins.initialize()
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Scope.getInstance().set_scheduler(scheduler_ins)
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sc_thread = threading.Thread(target=scheduler_ins.run)
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sc_thread.setDaemon(True)
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sc_thread.start()
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return scheduler_ins
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def init_event_manager(self):
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eventManager = EventManager()
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Scope.getInstance().setEventManager(eventManager)
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return eventManager
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def init_ahenk_db(self):
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db_service = AhenkDbService()
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db_service.connect()
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db_service.initialize_table()
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Scope.getInstance().setDbService(db_service)
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return db_service
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def init_messaging(self):
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messageManager = Messaging()
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Scope.getInstance().setMessageManager(messageManager)
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return messageManager
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def init_plugin_manager(self):
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pluginManager = PluginManagerFactory.get_instance()
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pluginManager.loadPlugins()
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Scope.getInstance().setPluginManager(pluginManager)
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return pluginManager
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def init_task_manager(self):
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taskManager = TaskManager()
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Scope.getInstance().setTaskManager(taskManager)
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return taskManager
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def init_registration(self):
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registration = Registration()
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Scope.getInstance().setRegistration(registration)
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return registration
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def init_execution_manager(self):
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execution_manager = ExecutionManager()
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Scope.getInstance().setExecutionManager(execution_manager)
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return execution_manager
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def init_messager(self):
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messager = Messager()
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messanger_thread = threading.Thread(target=messager.connect_to_server)
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messanger_thread.start()
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while messager.is_connected() is False:
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time.sleep(1)
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time.sleep(5)
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Scope.getInstance().setMessager(messager)
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return messager
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def init_message_response_queue(self):
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responseQueue = queue.Queue()
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messageResponseQueue = MessageResponseQueue(responseQueue)
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messageResponseQueue.setDaemon(True)
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messageResponseQueue.start()
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Scope.getInstance().setResponseQueue(responseQueue)
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return responseQueue
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def check_registration(self):
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# TODO restrict number of attemption
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try:
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while Scope.getInstance().getRegistration().is_registered() is False:
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print('registration need')
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Scope.getInstance().getLogger().debug('[AhenkDeamon] Attempting to register')
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Scope.getInstance().getRegistration().registration_request()
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except Exception as e:
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print(str(e))
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raise
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def reload_plugins(self):
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Scope.getInstance().getPluginManager().reloadPlugins()
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def reload_configuration(self):
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# Not implemented yet
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pass
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def reload_messaging(self):
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# Not implemented yet
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pass
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def reload_logger(self):
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# Not implemented yet
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pass
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def update_plugin_manager(self):
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# TODO destroy plugin manager here
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self.init_plugin_manager()
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def run(self):
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print('Ahenk running...')
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globalscope = Scope()
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globalscope.setInstance(globalscope)
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configFilePath = '/etc/ahenk/ahenk.conf'
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configfileFolderPath = '/etc/ahenk/config.d/'
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# configuration manager must be first load
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self.init_config_manager(configFilePath, configfileFolderPath)
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# Logger must be second
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logger = self.init_logger()
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self.init_event_manager()
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logger.info('[AhenkDeamon] Event Manager was set')
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self.init_ahenk_db()
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logger.info('[AhenkDeamon] DataBase Service was set')
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self.init_messaging()
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logger.info('[AhenkDeamon] Message Manager was set')
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self.init_plugin_manager()
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logger.info('[AhenkDeamon] Plugin Manager was set')
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self.init_task_manager()
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logger.info('[AhenkDeamon] Task Manager was set')
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self.init_registration()
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logger.info('[AhenkDeamon] Registration was set')
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self.init_execution_manager()
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logger.info('[AhenkDeamon] Execution Manager was set')
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self.check_registration()
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logger.info('[AhenkDeamon] Ahenk is registered')
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messager = self.init_messager()
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logger.info('[AhenkDeamon] Messager was set')
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self.init_message_response_queue()
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# if registration.is_ldap_registered() is False:
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# logger.debug('[AhenkDeamon] Attempting to registering ldap')
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# registration.ldap_registration_request() #TODO work on message
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logger.info('[AhenkDeamon] LDAP registration of Ahenk is completed')
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# TODO###############
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cnfg = configparser.ConfigParser()
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cnfg.add_section('PID')
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cnfg.set('PID', 'pid_number', str(os.getpid()))
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with open(pidfilePath, 'w') as config_file:
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cnfg.write(config_file)
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# TODO##############
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try:
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signal.signal(signal.SIGALRM, self.signal_handler)
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logger.info('[AhenkDeamon] Signal handler is set up')
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except Exception as e:
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logger.error('[AhenkDeamon] Signal handler could not set up :' + e.errno + '-' + e.strerror)
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messager.send_direct_message('test')
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while True:
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time.sleep(1)
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def signal_handler(self, num, stack):
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print("signal handled")
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# TODO######
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config = configparser.ConfigParser()
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config._interpolation = configparser.ExtendedInterpolation()
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config.read(pidfilePath)
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event = config.get('PID', 'event')
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# TODO######
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params = event.split()
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scope = Scope().getInstance()
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logger = scope.getLogger()
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if 'login' == str(params[0]):
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message = scope.getMessageManager().policy_request_msg(params[1])
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scope.getMessager().send_direct_message(message)
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logger.debug('[AhenkDeamon] login event is handled for user:' + params[1])
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elif 'logout' == str(params[0]):
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message = scope.getMessageManager().logout_msg(params[1])
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scope.getMessager().send_direct_message(message)
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logger.debug('[AhenkDeamon] logout event is handled for user:' + params[1])
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elif 'exit' == str(params[0]):
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print("exit:" + str(params[0]))
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scope = Scope.getInstance()
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scope.getMessager().disconnect()
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# TODO kill thread
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print('stopping ahenk')
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else:
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logger.error('[AhenkDeamon] Unknown command error. Command:' + params[0])
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logger.debug('[AhenkDeamon] Processing of handled event is completed')
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def get_pid_number():
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config = configparser.ConfigParser()
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config._interpolation = configparser.ExtendedInterpolation()
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config.read(pidfilePath)
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return config.get('PID', 'pid_number')
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def set_event(event_param):
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config = configparser.ConfigParser()
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config._interpolation = configparser.ExtendedInterpolation()
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config.read(pidfilePath)
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config.set('PID', 'event', event_param)
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with open(pidfilePath, 'w') as config_file:
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config.write(config_file)
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if __name__ == '__main__':
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ahenkdaemon = AhenkDeamon(pidfilePath)
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try:
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if len(sys.argv) == 2:
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if sys.argv[1] == 'start':
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print('starting')
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ahenkdaemon.run()
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elif sys.argv[1] == 'stop':
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ahenkdaemon.stop()
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elif sys.argv[1] == 'restart':
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ahenkdaemon.restart()
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elif sys.argv[1] == 'status':
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print('status')
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else:
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print('Unknown command. Usage : %s start|stop|restart|status' % sys.argv[0])
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sys.exit(2)
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elif len(sys.argv) == 3:
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if sys.argv[1] == 'login' or sys.argv[1] == 'logout':
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print('event:' + str(sys.argv[1]))
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set_event(str(sys.argv[1]) + ' ' + sys.argv[2])
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os.kill(int(get_pid_number()), signal.SIGALRM)
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else:
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print('Unknown command. Usage : %s start|stop|restart|status' % sys.argv[0])
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sys.exit(2)
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sys.exit(0)
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else:
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print('Usage : %s start|stop|restart|status' % sys.argv[0])
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sys.exit(2)
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except(KeyboardInterrupt, SystemExit):
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if str(os.getpid()) == get_pid_number():
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set_event('exit true')
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os.kill(int(get_pid_number()), signal.SIGALRM)
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