Files
mktxp-no-cli/mktxp/cli/options.py
Arseniy Kuznetsov 16261bf827 cli options, fixes
2021-01-09 12:02:51 +01:00

306 lines
12 KiB
Python
Executable File

# coding=utf8
## Copyright (c) 2020 Arseniy Kuznetsov
##
## This program is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License
## as published by the Free Software Foundation; either version 2
## of the License, or (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
import os
from argparse import ArgumentParser, HelpFormatter
from mktxp.cli.config.config import config_handler, MKTXPConfigKeys
from mktxp.utils.utils import FSHelper, UniquePartialMatchList, run_cmd
class MKTXPCommands:
INFO = 'info'
VERSION = 'version'
SHOW = 'show'
ADD = 'add'
EDIT = 'edit'
DELETE = 'delete'
START = 'start'
@classmethod
def commands_meta(cls):
return ''.join(('{',
f'{cls.INFO}, ',
f'{cls.VERSION}, ',
f'{cls.SHOW}, ',
f'{cls.ADD}, ',
f'{cls.EDIT}, ',
f'{cls.DELETE}, ',
f'{cls.START}',
'}'))
class MKTXPOptionsParser:
''' Base MKTXP Options Parser
'''
def __init__(self):
self._script_name = 'MKTXP'
self._description = \
'''
Prometheus Exporter for Mikrotik RouterOS.
Supports gathering metrics across multiple RouterOS devices, all easily configurable via built-in CLI interface.
Comes along with a dedicated Grafana dashboard(https://grafana.com/grafana/dashboards/13679)
'''
@property
def description(self):
return self._description
@property
def script_name(self):
return self._script_name
# Options Parsing Workflow
def parse_options(self):
''' General Options parsing workflow
'''
parser = ArgumentParser(prog = self._script_name,
description = self._description,
formatter_class=MKTXPHelpFormatter)
self.parse_global_options(parser)
self.parse_commands(parser)
args = vars(parser.parse_args())
self._check_args(args, parser)
return args
def parse_global_options(self, parser):
''' Parses global options
'''
pass
def parse_commands(self, parser):
''' Commands parsing
'''
subparsers = parser.add_subparsers(dest = 'sub_cmd',
title = 'MKTXP commands',
metavar = MKTXPCommands.commands_meta())
# Info command
subparsers.add_parser(MKTXPCommands.INFO,
description = 'Displays MKTXP info',
formatter_class=MKTXPHelpFormatter)
# Version command
subparsers.add_parser(MKTXPCommands.VERSION,
description = 'Displays MKTXP version info',
formatter_class=MKTXPHelpFormatter)
# Show command
show_parser = subparsers.add_parser(MKTXPCommands.SHOW,
description = 'Displays MKTXP config router entries',
formatter_class=MKTXPHelpFormatter)
self._add_entry_name(show_parser, registered_only = True, required = False, help = "Config entry name")
show_parser.add_argument('-cfg', '--config', dest='config',
help = "Shows MKTXP config files paths",
action = 'store_true')
# Add command
add_parser = subparsers.add_parser(MKTXPCommands.ADD,
description = 'Adds a new MKTXP router entry',
formatter_class=MKTXPHelpFormatter)
required_args_group = add_parser.add_argument_group('Required Arguments')
self._add_entry_name(required_args_group, registered_only = False, help = "Config entry name")
required_args_group.add_argument('-host', '--hostname', dest='hostname',
help = "IP address of RouterOS device to export metrics from",
type = str,
required=True)
required_args_group.add_argument('-usr', '--username', dest='username',
help = "username",
type = str,
required=True)
required_args_group.add_argument('-pwd', '--password', dest='password',
help = "password",
type = str,
required=True)
optional_args_group = add_parser.add_argument_group('Optional Arguments')
optional_args_group.add_argument('-e', dest='enabled',
help = "Enables entry for metrics processing",
action = 'store_false')
optional_args_group.add_argument('-port', dest='port',
help = "port",
default = MKTXPConfigKeys.DEFAULT_API_PORT,
type = int)
optional_args_group.add_argument('-ssl', '--use-ssl', dest='use_ssl',
help = "Connect via RouterOS api-ssl service",
action = 'store_true')
optional_args_group.add_argument('-no-ssl-cert', '--no-ssl-certificate', dest='no_ssl_certificate',
help = "Connect with configured RouterOS SSL ceritficate",
action = 'store_true')
optional_args_group.add_argument('-dhcp', '--export_dhcp', dest='dhcp',
help = "Export DHCP metrics",
action = 'store_true')
optional_args_group.add_argument('-dhcp_lease', '--export_dhcp_lease', dest='dhcp_lease',
help = "Export DHCP Lease metrics",
action = 'store_true')
optional_args_group.add_argument('-pool', '--export_pool', dest='pool',
help = "Export IP Pool metrics",
action = 'store_true')
optional_args_group.add_argument('-interface', '--export_interface', dest='interface',
help = "Export Interface metrics",
action = 'store_true')
optional_args_group.add_argument('-monitor', '--export_monitor', dest='monitor',
help = "Export Interface Monitor metrics",
action = 'store_true')
optional_args_group.add_argument('-route', '--export_route', dest='route',
help = "Export IP Route metrics",
action = 'store_true')
optional_args_group.add_argument('-wireless', '--export_wireless', dest='wireless',
help = "Export Wireless metrics",
action = 'store_true')
optional_args_group.add_argument('-capsman', '--export_capsman', dest='capsman',
help = "Export CAPsMAN metrics",
action = 'store_true')
# Edit command
edit_parser = subparsers.add_parser(MKTXPCommands.EDIT,
description = 'Edits an existing MKTXP router entry',
formatter_class=MKTXPHelpFormatter)
edit_parser.add_argument('-ed', '--editor', dest='editor',
help = f"command line editor to use ({self._system_editor()} by default)",
default = self._system_editor(),
type = str)
# Delete command
delete_parser = subparsers.add_parser(MKTXPCommands.DELETE,
description = 'Deletes an existing MKTXP router entry',
formatter_class=MKTXPHelpFormatter)
required_args_group = delete_parser.add_argument_group('Required Arguments')
self._add_entry_name(required_args_group, registered_only = True, help = "Name of entry to delete")
# Start command
start_parser = subparsers.add_parser(MKTXPCommands.START,
description = 'Starts exporting Miktorik Router Metrics',
formatter_class=MKTXPHelpFormatter)
# Options checking
def _check_args(self, args, parser):
''' Validation of supplied CLI arguments
'''
# check if there is a cmd to execute
self._check_cmd_args(args, parser)
if args['sub_cmd'] in (MKTXPCommands.DELETE, MKTXPCommands.SHOW):
# Registered Entry name could be a partial match, need to expand
if args['entry_name']:
args['entry_name'] = UniquePartialMatchList(config_handler.registered_entries()).find(args['entry_name'])
elif args['sub_cmd'] == MKTXPCommands.ADD:
if args['entry_name'] in (config_handler.registered_entries()):
print(f"{args['entry_name']}: entry name already exists")
parser.exit()
def _check_cmd_args(self, args, parser):
''' Validation of supplied CLI commands
'''
# base command check
if 'sub_cmd' not in args or not args['sub_cmd']:
# If no command was specified, check for the default one
cmd = self._default_command
if cmd:
args['sub_cmd'] = cmd
else:
# no appropriate default either
parser.print_help()
parser.exit()
@property
def _default_command(self):
''' If no command was specified, print INFO by default
'''
return MKTXPCommands.START
# Internal helpers
@staticmethod
def _is_valid_dir_path(parser, path_arg):
''' Checks if path_arg is a valid dir path
'''
path_arg = FSHelper.full_path(path_arg)
if not (os.path.exists(path_arg) and os.path.isdir(path_arg)):
parser.error(f'"{path_arg}" does not seem to be an existing directory path')
else:
return path_arg
@staticmethod
def _is_valid_file_path(parser, path_arg):
''' Checks if path_arg is a valid file path
'''
path_arg = FSHelper.full_path(path_arg)
if not (os.path.exists(path_arg) and os.path.isfile(path_arg)):
parser.error('"{path_arg}" does not seem to be an existing file path')
else:
return path_arg
@staticmethod
def _add_entry_name(parser, registered_only = False, required = True, help = 'MKTXP Entry name'):
parser.add_argument('-en', '--entry-name', dest = 'entry_name',
type = str,
metavar = config_handler.registered_entries() if registered_only else None,
required = required,
choices = UniquePartialMatchList(config_handler.registered_entries())if registered_only else None,
help = help)
@staticmethod
def _add_entry_groups(parser):
required_args_group = parser.add_argument_group('Required Arguments')
MKTXPOptionsParser._add_entry_name(required_args_group)
@staticmethod
def _system_editor():
editor = os.environ.get('EDITOR')
if editor:
return editor
commands = ['which nano', 'which vi', 'which vim']
for command in commands:
editor = run_cmd(command, quiet = True).rstrip()
if editor:
break
return editor
class MKTXPHelpFormatter(HelpFormatter):
''' Custom formatter for ArgumentParser
Disables double metavar display, showing only for long-named options
'''
def _format_action_invocation(self, action):
if not action.option_strings:
metavar, = self._metavar_formatter(action, action.dest)(1)
return metavar
else:
parts = []
# if the Optional doesn't take a value, format is:
# -s, --long
if action.nargs == 0:
parts.extend(action.option_strings)
# if the Optional takes a value, format is:
# -s ARGS, --long ARGS
# change to
# -s, --long ARGS
else:
default = action.dest.upper()
args_string = self._format_args(action, default)
for option_string in action.option_strings:
#parts.append('%s %s' % (option_string, args_string))
parts.append('%s' % option_string)
parts[-1] += ' %s'%args_string
return ', '.join(parts)