evio/controller/modules/Logger.py

140 lines
6.1 KiB
Python

# EdgeVPNio
# Copyright 2020, University of Florida
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import logging
import logging.handlers as lh
import os
from framework.ControllerModule import ControllerModule
class Logger(ControllerModule):
def __init__(self, cfx_handle, module_config, module_name):
super(Logger, self).__init__(cfx_handle, module_config, module_name)
self._logger = None
def initialize(self):
# Extracts the controller Log Level from the evio config file,
# If nothing is provided the default is INFO
level = logging.INFO
if "LogLevel" in self._cm_config:
level = getattr(logging, self._cm_config["LogLevel"])
# If the Logging is set to Console by the User
if self._cm_config["Device"] == "Console":
# Console logging
logging.basicConfig(format="[%(asctime)s.%(msecs)03d] %(levelname)s: %(message)s",
datefmt="%H:%M:%S",
level=level)
self._logger = logging.getLogger("EdgeVPNio console logger")
# If the Logging is set to File by the User
elif self._cm_config["Device"] == "File":
# Extracts the filepath else sets logs to current working directory
filepath = self._cm_config.get("Directory", "./")
fqname = os.path.join(filepath,
self._cm_config.get("CtrlLogFileName", "ctrl.log"))
if not os.path.exists(filepath):
os.makedirs(filepath, exist_ok=True)
if os.path.isfile(fqname):
os.remove(fqname)
self._logger = logging.getLogger("EdgeVPNio Rotating Log")
self._logger.setLevel(level)
# Creates rotating filehandler
handler = lh.RotatingFileHandler(filename=fqname,
maxBytes=self._cm_config["MaxFileSize"],
backupCount=self._cm_config["MaxArchives"])
formatter = logging.Formatter(
"[%(asctime)s.%(msecs)03d] %(levelname)s:%(message)s", datefmt="%Y%m%d %H:%M:%S")
handler.setFormatter(formatter)
# Adds the filehandler to the Python logger module
self._logger.addHandler(handler)
# If the Logging is set to All by the User
else:
self._logger = logging.getLogger("EdgeVPNio Console & File Logger")
self._logger.setLevel(level)
#Console Logger
console_handler = logging.StreamHandler()
console_log_formatter = logging.Formatter(
"[%(asctime)s.%(msecs)03d] %(levelname)s: %(message)s",
datefmt="%H:%M:%S")
console_handler.setFormatter(console_log_formatter)
self._logger.addHandler(console_handler)
# Extracts the filepath else sets logs to current working directory
filepath = self._cm_config.get("Directory", "./")
fqname = os.path.join(filepath,
self._cm_config.get("CtrlLogFileName", "ctrl.log"))
if not os.path.exists(filepath):
os.makedirs(filepath, exist_ok=True)
if os.path.isfile(fqname):
os.remove(fqname)
#File Logger
# Creates rotating filehandler
file_handler = lh.RotatingFileHandler(filename=fqname)
file_log_formatter = logging.Formatter(
"[%(asctime)s.%(msecs)03d] %(levelname)s:%(message)s", datefmt="%Y%m%d %H:%M:%S")
file_handler.setFormatter(file_log_formatter)
self._logger.addHandler(file_handler)
self._logger.info("Logger: Module loaded")
def process_cbt(self, cbt):
if cbt.op_type == "Request":
lvl = cbt.request.action
mod = cbt.request.initiator
if isinstance(cbt.request.params, tuple):
fmt = "%s: "+ cbt.request.params[0]
vals = cbt.request.params[1]
else:
fmt = "%s: %s"
vals = [cbt.request.params]
if lvl == "LOG_DEBUG":
self._logger.debug(fmt, mod, *vals)
cbt.set_response(None, True)
elif lvl == "LOG_INFO":
self._logger.info(fmt, mod, *vals)
cbt.set_response(None, True)
elif lvl == "LOG_WARNING":
self._logger.warning(fmt, mod, *vals)
cbt.set_response(None, True)
elif lvl == "LOG_ERROR":
self._logger.error(fmt, mod, *vals)
cbt.set_response(None, True)
elif lvl == "LOG_QUERY_CONFIG":
cbt.set_response(self._cm_config, True)
else:
self._logger.warning("%s: Unsupported CBT action %s", self._module_name, str(cbt))
cbt.set_response("Unsupported CBT action", False)
self.complete_cbt(cbt)
elif cbt.op_type == "Response":
self.free_cbt(cbt)
def timer_method(self):
pass
def terminate(self):
logging.shutdown()