mirror of
https://github.com/Pardus-LiderAhenk/ahenk
synced 2024-11-15 07:52:15 +03:00
521 lines
21 KiB
Python
Executable file
521 lines
21 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 json
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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 multiprocessing import Process
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from base.scope import Scope
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from base.agreement.agreement import Agreement
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from base.command.commander import Commander
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from base.config.config_manager import ConfigManager
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from base.database.ahenk_db_service import AhenkDbService
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from base.deamon.base_daemon import BaseDaemon
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from base.event.event_manager import EventManager
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from base.execution.execution_manager import ExecutionManager
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from base.logger.ahenk_logger import Logger
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from base.messaging.message_response_queue import MessageResponseQueue
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from base.messaging.messaging import Messaging
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from base.messaging.messenger import Messenger
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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.system.system import System
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from base.task.task_manager import TaskManager
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from base.timer.setup_timer import SetupTimer
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from base.timer.timer import Timer
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from base.util.util import Util
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ahenk_daemon = None
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class AhenkDaemon(BaseDaemon):
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"""Ahenk service base class which initializes services and maintains events/commands"""
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@staticmethod
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def reload():
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""" docstring"""
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# reload service here
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pass
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@staticmethod
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def init_logger():
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""" docstring"""
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logger = Logger()
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logger.info('[AhenkDaemon] Log was set')
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Scope.getInstance().setLogger(logger)
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return logger
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@staticmethod
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def init_config_manager(config_file_path, configfile_folder_path):
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""" docstring"""
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config_manager = ConfigManager(config_file_path, configfile_folder_path)
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config = config_manager.read()
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Scope.getInstance().setConfigurationManager(config)
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return config
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@staticmethod
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def init_scheduler():
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""" docstring"""
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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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@staticmethod
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def init_event_manager():
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""" docstring"""
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event_manager = EventManager()
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Scope.getInstance().setEventManager(event_manager)
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return event_manager
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@staticmethod
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def init_ahenk_db():
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""" docstring"""
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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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@staticmethod
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def init_messaging():
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""" docstring"""
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message_manager = Messaging()
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Scope.getInstance().setMessageManager(message_manager)
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return message_manager
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@staticmethod
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def init_plugin_manager():
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""" docstring"""
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plugin_manager = PluginManagerFactory.get_instance()
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Scope.getInstance().setPluginManager(plugin_manager)
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# order changed, problem?
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plugin_manager.load_plugins()
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return plugin_manager
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@staticmethod
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def init_task_manager():
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""" docstring"""
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task_manager = TaskManager()
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Scope.getInstance().setTaskManager(task_manager)
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return task_manager
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@staticmethod
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def init_registration():
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""" docstring"""
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registration = Registration()
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Scope.getInstance().setRegistration(registration)
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return registration
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@staticmethod
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def init_execution_manager():
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""" docstring"""
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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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@staticmethod
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def init_messenger():
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""" docstring"""
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messenger_ = Messenger()
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messenger_.connect_to_server()
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Scope.getInstance().setMessenger(messenger_)
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return messenger_
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@staticmethod
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def init_message_response_queue():
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""" docstring"""
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response_queue = queue.Queue()
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message_response_queue = MessageResponseQueue(response_queue)
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message_response_queue.setDaemon(True)
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message_response_queue.start()
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Scope.getInstance().setResponseQueue(response_queue)
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return response_queue
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def check_registration(self):
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""" docstring"""
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max_attempt_number = int(System.Hardware.Network.interface_size()) * 3
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# self.logger.debug()
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# logger = Scope.getInstance().getLogger()
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registration = Scope.getInstance().getRegistration()
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try:
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while registration.is_registered() is False:
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max_attempt_number -= 1
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self.logger.debug('[AhenkDaemon] Ahenk is not registered. Attempting for registration')
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registration.registration_request()
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if max_attempt_number < 0:
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self.logger.warning('[AhenkDaemon] Number of Attempting for registration is over')
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self.registration_failed()
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break
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except Exception as e:
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self.logger.error('[AhenkDaemon] Registration failed. Error message: {0}'.format(str(e)))
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@staticmethod
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def shutdown_mode():
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""" docstring"""
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scope = Scope().getInstance()
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plugin_manager = scope.getPluginManager()
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plugin_manager.process_mode('shutdown')
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def registration_failed(self):
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""" docstring"""
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self.logger.error(
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'[AhenkDaemon] Registration failed. All registration attempts were failed. Ahenk is stopping...')
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print('Registration failed. Ahenk is stopping..')
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ahenk_daemon.stop()
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@staticmethod
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def reload_plugins():
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""" docstring"""
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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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""" docstring"""
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# TODO destroy plugin manager here
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self.init_plugin_manager()
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def init_signal_listener(self):
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""" docstring"""
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try:
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signal.signal(signal.SIGALRM, self.run_command_from_fifo)
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self.logger.info('[AhenkDaemon] Signal handler is set up')
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except Exception as e:
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self.logger.error('[AhenkDaemon] Signal handler could not set up. Error Message: {0} '.format(str(e)))
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@staticmethod
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def init_pid_file():
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""" docstring"""
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with open(System.Ahenk.pid_path(), 'w+') as f:
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f.write(str(os.getpid()))
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@staticmethod
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def init_fifo_file():
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""" docstring"""
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if Util.is_exist(System.Ahenk.fifo_file()):
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Util.delete_file(System.Ahenk.fifo_file())
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Util.create_file(System.Ahenk.fifo_file())
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Util.set_permission(System.Ahenk.fifo_file(), '600')
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def run(self):
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""" docstring"""
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print('Ahenk running...')
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global_scope = Scope()
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global_scope.setInstance(global_scope)
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config_file_folder_path = '/etc/ahenk/config.d/'
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# configuration manager must be first load
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self.init_config_manager(System.Ahenk.config_path(), config_file_folder_path)
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# Logger must be second
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self.logger = self.init_logger()
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self.init_pid_file()
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self.logger.info('[AhenkDaemon] Pid file was created')
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self.init_fifo_file()
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self.logger.info('[AhenkDaemon] Pid file was created')
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self.init_event_manager()
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self.logger.info('[AhenkDaemon] Event Manager was set')
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self.init_ahenk_db()
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self.logger.info('[AhenkDaemon] DataBase Service was set')
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self.init_messaging()
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self.logger.info('[AhenkDaemon] Message Manager was set')
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self.init_plugin_manager()
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self.logger.info('[AhenkDaemon] Plugin Manager was set')
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self.init_scheduler()
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self.logger.info('[AhenkDaemon] Scheduler was set')
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self.init_task_manager()
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self.logger.info('[AhenkDaemon] Task Manager was set')
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self.init_registration()
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self.logger.info('[AhenkDaemon] Registration was set')
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self.init_execution_manager()
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self.logger.info('[AhenkDaemon] Execution Manager was set')
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self.check_registration()
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self.logger.info('[AhenkDaemon] Ahenk was registered')
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self.messenger = self.init_messenger()
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self.logger.info('[AhenkDaemon] Messenger was set')
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self.init_signal_listener()
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self.logger.info('[AhenkDaemon] Signals listeners was set')
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Agreement().agreement_contract_update()
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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('[AhenkDaemon] Attempting to registering ldap')
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# registration.ldap_registration_request() #TODO work on message
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self.logger.info('[AhenkDaemon] LDAP registration of Ahenk is completed')
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self.messenger.send_direct_message('test')
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while True:
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time.sleep(1)
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@staticmethod
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def running_plugin():
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""" docstring"""
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scope = Scope().getInstance()
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plugin_manager = scope.getPluginManager()
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for plugin in plugin_manager.plugins:
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if plugin.keep_run is True:
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return False
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return True
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def run_command_from_fifo(self, num, stack):
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""" docstring"""
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scope = Scope().getInstance()
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plugin_manager = scope.getPluginManager()
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message_manager = scope.getMessageManager()
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messenger = scope.getMessenger()
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conf_manager = scope.getConfigurationManager()
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db_service = scope.getDbService()
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execute_manager = scope.getExecutionManager()
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while True:
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try:
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event = Commander().get_event()
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if event is None:
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break
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json_data = json.loads(event)
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except Exception as e:
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self.logger.error(
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'[AhenkDaemon] A problem occurred while loading json. Check json format! Error Message: {0}.'
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' Event = {1}'.format(str(e), str(event)))
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return
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if json_data is not None:
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self.logger.debug('[AhenkDaemon] Signal handled')
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self.logger.debug('[AhenkDaemon] Signal is :{0}'.format(str(json_data['event'])))
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if str(json_data['event']) == 'login':
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username = json_data['username']
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display = json_data['display']
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desktop = json_data['desktop']
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self.logger.info('[AhenkDaemon] login event is handled for user: {0}'.format(username))
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login_message = message_manager.login_msg(username)
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messenger.send_direct_message(login_message)
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agreement = Agreement()
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agreement_choice = None
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if agreement.check_agreement(username) is not True:
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self.logger.debug('[AhenkDaemon] User {0} has not accepted agreement.'.format(username))
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thread_ask = Process(target=agreement.ask, args=(username, display,))
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thread_ask.start()
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agreement_timeout = conf_manager.get('SESSION', 'agreement_timeout')
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timeout = int(agreement_timeout) # sec
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timer = time.time()
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while 1:
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if thread_ask.is_alive() is False:
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self.logger.warning('[AhenkDaemon] {0} was answered the question '.format(username))
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if Agreement().check_agreement(username) is True:
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self.logger.warning('[AhenkDaemon] Choice of {0} is YES'.format(username))
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agreement_choice = True
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break
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elif Agreement().check_agreement(username) is False:
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self.logger.warning('[AhenkDaemon] Choice of {0} is NO'.format(username))
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agreement_choice = False
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Util.close_session(username)
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break
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if (time.time() - timer) > timeout:
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if thread_ask.is_alive():
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thread_ask.terminate()
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Util.close_session(username)
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self.logger.warning(
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'[AhenkDaemon] Session of {0} was ended because of timeout of contract agreement'.format(
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username))
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break
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time.sleep(1)
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if agreement_choice is not None:
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messenger.send_direct_message(
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message_manager.agreement_answer_msg(username, agreement_choice))
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else:
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agreement_choice = True
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if agreement_choice is True:
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db_service.delete('session', 'username=\'{0}\''.format(username))
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self.logger.info(
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'[AhenkDaemon] Display is {0}, desktop env is {1} for {2}'.format(display, desktop,
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username))
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db_service.update('session', scope.getDbService().get_cols('session'),
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[username, display, desktop, Util.timestamp()])
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get_policy_message = message_manager.policy_request_msg(username)
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plugin_manager.process_mode('safe', username)
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plugin_manager.process_mode('login', username)
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kward = dict()
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kward['timeout_args'] = username
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kward['checker_args'] = username
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SetupTimer.start(Timer(timeout=System.Ahenk.get_policy_timeout(),
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timeout_function=execute_manager.execute_default_policy,
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checker_func=execute_manager.is_policy_executed, kwargs=kward))
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self.logger.info(
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'[AhenkDaemon] Requesting updated policies from Lider. If Ahenk could not reach updated '
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'policies in {0} sec, booked policies will be executed'.format(
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System.Ahenk.get_policy_timeout()))
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messenger.send_direct_message(get_policy_message)
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elif str(json_data['event']) == 'logout':
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username = json_data['username']
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db_service.delete('session', 'username=\'{0}\''.format(username))
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execute_manager.remove_user_executed_policy_dict(username)
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# TODO delete all user records while initializing
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self.logger.info('[AhenkDaemon] logout event is handled for user: {0}'.format(username))
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logout_message = message_manager.logout_msg(username)
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messenger.send_direct_message(logout_message)
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plugin_manager.process_mode('logout', username)
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plugin_manager.process_mode('safe', username)
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elif str(json_data['event']) == 'send':
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self.logger.info('[AhenkDaemon] Sending message over ahenkd command. Response Message: {0}'.format(
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json.dumps(json_data['message'])))
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message = json.dumps(json_data['message'])
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messenger.send_direct_message(message)
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elif str(json_data['event']) == 'load':
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plugin_name = str(json_data['plugins'])
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if plugin_name == 'all':
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self.logger.debug('[AhenkDaemon] All plugins are loading to ahenk')
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plugin_manager.load_plugins()
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else:
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for p_name in plugin_name.split(','):
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self.logger.debug('[AhenkDaemon] {0} plugin is loading to ahenk'.format(p_name))
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plugin_manager.load_single_plugin(p_name)
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elif str(json_data['event']) == 'reload':
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plugin_name = str(json_data['plugins'])
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if plugin_name == 'all':
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self.logger.debug('[AhenkDaemon] All plugins are reloading to ahenk')
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plugin_manager.reload_plugins()
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else:
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for p_name in plugin_name.split(','):
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self.logger.debug('[AhenkDaemon] {0} plugin is reloading to ahenk'.format(p_name))
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plugin_manager.reload_single_plugin(p_name)
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elif str(json_data['event']) == 'remove':
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plugin_name = str(json_data['plugins'])
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if plugin_name == 'all':
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self.logger.debug('[AhenkDaemon] All plugins are removing from ahenk')
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plugin_manager.remove_plugins()
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else:
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for p_name in plugin_name.split(','):
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self.logger.debug('[AhenkDaemon] {0} plugin is removing from ahenk'.format(p_name))
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plugin_manager.remove_single_plugin(p_name)
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elif str(json_data['event']) == 'stop':
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self.shutdown_mode()
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self.logger.info('[AhenkDaemon] Shutdown mode activated.')
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# TODO timeout
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while self.running_plugin() is False:
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self.logger.debug('[AhenkDaemon] Waiting for progress of plugins...')
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time.sleep(0.5)
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if Util.is_exist(System.Ahenk.fifo_file()):
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Util.delete_file(System.Ahenk.fifo_file())
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ahenk_daemon.stop()
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else:
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self.logger.error('[AhenkDaemon] Unknown command error. Command:' + json_data['event'])
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self.logger.debug('[AhenkDaemon] Processing of handled event is completed')
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if __name__ == '__main__':
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ahenk_daemon = AhenkDaemon(System.Ahenk.pid_path())
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try:
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if len(sys.argv) == 2 and (sys.argv[1] in ('start', 'stop', 'restart', 'status')):
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if sys.argv[1] == 'start':
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if System.Ahenk.is_running() is True:
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print('There is already running Ahenk service. It will be killed.[{0}]'.format(
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str(System.Ahenk.get_pid_number())))
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System.Process.kill_by_pid(int(System.Ahenk.get_pid_number()))
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else:
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print('Ahenk starting...')
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ahenk_daemon.run()
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elif sys.argv[1] == 'stop':
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if System.Ahenk.is_running() is True:
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raise SystemExit
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else:
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print('Ahenk not working!')
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elif sys.argv[1] == 'restart':
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if System.Ahenk.is_running() is True:
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print('Ahenk restarting...')
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ahenk_daemon.restart()
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else:
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print('Ahenk starting...')
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ahenk_daemon.run()
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elif sys.argv[1] == 'status':
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print(Commander().status())
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else:
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print('Unknown command. Usage : %s start|stop|restart|status|clean' % sys.argv[0])
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sys.exit(2)
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else:
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result = Commander().set_event(sys.argv)
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if result is None:
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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:
|
|
ahenk_daemon.stop()
|