def __init__(self, configs):
logging.info('Initializing ServerCore ...')
self.initialized = True
self.configs = configs
try:
self.database = Database(configs)
except:
logging.critical('Failed to initialize ServerCore. Shutting down.',
exc_info=True)
self.initialized = False
return
if self.database.database is None:
logging.critical('Failed to initialize ServerCore. Shutting down.')
self.initialized = False
return
self.shell = ServerShell(self)
self.database.shell = self.shell
self.modules = {}
self._load_modules()
self.user_system = UserSystem(self.database)
self.server_interface = ServerInterface(self.configs,
self.user_system, self.shell)
self.shell.server_interface = self.server_interface
# Initialize the Notification system
Notification.registered_classes[Notification.get_name()] = Notification
# Save the configs
self.configs.save_settings()
logging.info('Initialized ServerCore')
class ServerCore:
def __init__(self, configs):
logging.info('Initializing ServerCore ...')
self.initialized = True
self.configs = configs
try:
self.database = Database(configs)
except:
logging.critical('Failed to initialize ServerCore. Shutting down.',
exc_info=True)
self.initialized = False
return
if self.database.database is None:
logging.critical('Failed to initialize ServerCore. Shutting down.')
self.initialized = False
return
self.shell = ServerShell(self)
self.database.shell = self.shell
self.modules = {}
self._load_modules()
self.user_system = UserSystem(self.database)
self.server_interface = ServerInterface(self.configs,
self.user_system, self.shell)
self.shell.server_interface = self.server_interface
# Initialize the Notification system
Notification.registered_classes[Notification.get_name()] = Notification
# Save the configs
self.configs.save_settings()
logging.info('Initialized ServerCore')
def set_admin_password(self, password):
if not self.initialized:
return False
self.user_system.set_admin_password(password)
return True
def _load_modules(self):
logging.info('Loading modules ...')
modules_objects =\
umit.inventory.common.load_modules_from_target('server',
self.configs, self.shell)
for module_object in modules_objects:
self.modules[module_object.get_name()] = module_object
logging.info('Loaded modules')
def _activate_modules(self):
# Init subscriptions. This is done now because all modules must be
# loaded and initialized before the subscribtions are done.
logging.info('Initializing modules subscriptions ...')
for module in self.modules.values():
if not module.is_enabled():
continue
if isinstance(module, SubscriberServerModule):
module.subscribe()
logging.info('Initialized modules subscriptions.')
# Init the database operations for each module.
logging.info('Initializing modules database operations ...')
for module in self.modules.values():
module.init_database_operations()
logging.info('Done initializing modules database operations.')
# Activate the modules
logging.info('Activating modules ...')
for module in self.modules.values():
if module.is_enabled():
module.activate()
logging.info('Done activating modules.')
def update_configs(self, configs):
try:
logging.info('Updating configurations.\n%s',
json.dumps(configs, sort_keys=True, indent=4))
except:
logging.warning('Invalid configuration change request',
exc_info=True)
try:
sections = configs.keys()
for section in sections:
options = configs[section]
for option_name in options.keys():
option_value = options[option_name]
self.configs.set(section, option_name, option_value)
# If a module, refresh it's settings and activate if needed
if section in self.modules.keys():
module = self.modules[section]
if not module.is_enabled() and\
self.configs.get(section, InventoryConfig.module_enabled):
module.activate()
module.refresh_settings()
# Save the settings
self.configs.save_settings()
except:
logging.error('Changing server configurations failed',
exc_info=True)
def run(self):
if not self.initialized:
return
self._activate_modules()
# Call the modules which implement ListenerServerModule so they
# will start listening.
for module in self.modules.values():
if not module.is_enabled():
continue
if isinstance(module, ListenerServerModule):
module.listen()
self.server_interface.listen()
logging.info('Starting the Twisted Reactor')
reactor.run()
def shutdown(self):
for module in self.modules.values():
if module.is_enabled():
module.deactivate()
module.shutdown()
reactor.stop()
