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File Name : lve_stats2_reseller_lib.py

# -*- coding: utf-8 -*-

# lve_stats2_reseller_lib.py - lve-stats reseller library for cloudlinux-config library

# Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2019 All Rights Reserved
#
# Licensed under CLOUD LINUX LICENSE AGREEMENT
# http://cloudlinux.com/docs/LICENSE.TXT

import os
import subprocess

from clcommon.utils import mod_makedirs

from . import lve_stats2_lib
from .clconfig_utils import (
    boolean_to_yes_no,
    is_positive_int,
    min_num_notify_converter,
    repack_dict,
    str_to_boolean,
    time_convertor_to_dict,
    time_unit_to_letter,
)
from .lve_stats2_lib import LveStats2Exception, StatsNotifierConfig, StatsNotifierDir, faults_dict

ResellerStatsNotifierDir = StatsNotifierDir + '/resellers.d/'

reseller_notify_dict = {
    'NOTIFY_RESELLER_ON_TOTAL_FAULTS': 'notifyReseller',
    'NOTIFY_RESELLER_ON_CUSTOMERS_FAULTS': 'notifyResellerOnCustomers',
    'NOTIFY_CUSTOMERS_ON_FAULTS': 'notifyCustomers'
    }

reseller_number_notify_dict = {
    'NOTIFY_MIN_FAULTS_RESELLER': 'reseller',
    'NOTIFY_MIN_FAULTS_CUSTOMER': 'customer'
    }

reseller_notify_time_dict = {
    'NOTIFY_INTERVAL_RESELLER': 'reseller',
    'NOTIFY_INTERVAL_CUSTOMER': 'customer'
    }

# For unit tests
def _open(file_name, mode='r'):
    return open(file_name, mode=mode, encoding='utf-8')

def _create_default_reseller_config():
    """
    Creates default StatsNotifier config for reseller
    """
    admin_config = lve_stats2_lib.get_notification().get('faultsNotification')
    admin_faults = {key: admin_config['faultsToInclude'][key] for key in (
        'mem', 'iops', 'io', 'nproc', 'concurrentConnections', 'cpu'
    )}
    return {'faultsNotification':
            {'notifyResellerOnCustomers': admin_config['notifyResellers'],
             'minimumNumberOfFaultsToNotify': {
                 'reseller': admin_config['minimumNumberOfFaultsToNotify']['admin'],
                 'customer': admin_config['minimumNumberOfFaultsToNotify']['user']},
             'notifyReseller': admin_config['notifyResellers'],
             'notify': {'reseller': {'unitOfTime': admin_config['notify']['admin']['unitOfTime'],
                                     'period': admin_config['notify']['admin']['period']},
                        'customer': {'unitOfTime': admin_config['notify']['user']['unitOfTime'],
                                     'period': admin_config['notify']['user']['period']}
             },
             'faultsToInclude': admin_faults,
             'notifyCustomers': admin_config['notifyResellerCustomers']
            }}

def get_notification(reseller, defaults=False):
    """
    Retrieves lve-stats2 notifications parameters for resellers
    :param bool defaults: True if we want get defaults when config is not set, else False
    :param str reseller: reseller name, if we want notifications parameters for a reseller
    :return: dict. For example:
        {'faultsNotification': {'notifyResellerCustomers': True,
                                'notifyResellers': True,
                                'minimumNumberOfFaultsToNotify': {'admin': 0, 'user': 0},
                                'notifyAdmin': True,
                                'notify': {'admin': {'unitOfTime': 'hours', 'period': 12},
                                           'user': {'unitOfTime': 'hours', 'period': 12}
                                          },
                                'faultsToInclude': {'mem': True, 'iops': False, 'io': False,
                                                    'nproc': False, 'concurrentConnections': False,
                                                    'cpu': True},
                                'notifyCustomers': False
                               }
        }
    """
    if reseller is None:
        raise ValueError('reseller can`t be None')
    config_path = os.path.join(ResellerStatsNotifierDir, f"{reseller}_StatsNotifier.cfg")

if not os.path.exists(config_path):
        return _create_default_reseller_config() if defaults else {}

try:
        f = _open(config_path)
        config = f.readlines()
        f.close()
    except (IOError, OSError) as e:
        raise LveStats2Exception({'message': "%(lvestats_cfg)s read error: " + str(e),
                                  'context': {'lvestats_cfg': config_path}}) from e

config_dict = {}
    for line in config:
        if line.startswith('#') or line.strip() == '':
            continue
        key, value = line.split('=')
        config_dict[key] = value.strip()

notify_d = reseller_notify_dict
    faults_d = faults_dict
    number_notify_d = reseller_number_notify_dict
    notify_time_d = reseller_notify_time_dict

faults_notification_dict = repack_dict(notify_d, config_dict, str_to_boolean)
    faults_include_dict = repack_dict(faults_d, config_dict, str_to_boolean)
    min_num_notify = repack_dict(number_notify_d, config_dict, min_num_notify_converter, default=1)
    period_notify = repack_dict(notify_time_d, config_dict, time_convertor_to_dict)

faults_notification_dict['faultsToInclude'] = faults_include_dict
    faults_notification_dict['minimumNumberOfFaultsToNotify'] = min_num_notify
    faults_notification_dict['notify'] = period_notify
    return {"faultsNotification": faults_notification_dict}

def set_notification(parameters_dict, reseller):
    """
    Sets lve-stats2 notifications parameters
    :param parameters_dict: Parametres to set. For example:
        {u'notifyResellers': True,
         u'faultsToInclude': {u'mem': True, u'iops': False, u'io': False, u'nproc': False,
                                u'concurrentConnections': False, u'cpu': True},
         u'minimumNumberOfFaultsToNotify': {u'admin': 0, u'user': 0},
         u'notifyAdmin': True,
         u'notify': {u'admin': {u'unitOfTime': u'hours', u'period': 12},
                     u'user': {u'unitOfTime': u'hours', u'period': 12}
                    },
         u'notifyResellerCustomers': True,
         u'notifyCustomers': False
        }
    :param str reseller: either reseller name or None
    """
    # Do nothing, if admin's lvestats2 notifier config not found
    # either parameters_dict is empty and we shouldn't change anything
    if not os.path.exists(StatsNotifierConfig) or len(parameters_dict) == 0:
        return

notifier_params = {}
    if reseller is None:
        raise ValueError('reseller can`t be None')

config_path = os.path.join(ResellerStatsNotifierDir, f"{reseller}_StatsNotifier.cfg")
    if not os.path.exists(config_path):
        notifier_params.update(_create_default_reseller_config())
    else:
        notifier_params.update(get_notification(reseller=reseller))

# create directory and empty config if not exists
    if not os.path.exists(os.path.dirname(config_path)):
        mod_makedirs(os.path.dirname(config_path), 0o755)
    if not os.path.exists(config_path):
        _open(config_path, 'w').close()

# Read notifier config
    try:
        f = _open(config_path)
        config_lines = [line.strip() for line in f.readlines()]
        f.close()
    except (IOError, OSError) as e:
        raise LveStats2Exception({'message': "%(lvestats_cfg)s read error: " + str(e),
                                  'context': {'lvestats_cfg': StatsNotifierConfig}}) from e

# Fill parameters to change lve-stats config

faults_config_map = {'NOTIFY_CPU': (lambda x: boolean_to_yes_no(x), 'faultsToInclude/cpu'),
                         'NOTIFY_NPROC': (lambda x: boolean_to_yes_no(x), 'faultsToInclude/nproc'),
                         'NOTIFY_IO': (lambda x: boolean_to_yes_no(x), 'faultsToInclude/io'),
                         'NOTIFY_MEMORY': (lambda x: boolean_to_yes_no(x), 'faultsToInclude/mem'),
                         'NOTIFY_EP': (lambda x: boolean_to_yes_no(x), 'faultsToInclude/concurrentConnections'),
                         'NOTIFY_IOPS': (lambda x: boolean_to_yes_no(x), 'faultsToInclude/iops')}

faults_config_map.update({
        'NOTIFY_INTERVAL_RESELLER': (lambda x, y: f"{is_positive_int(x)}{time_unit_to_letter(y)}",
                                     'notify/reseller/period',
                                     'notify/reseller/unitOfTime'),
        'NOTIFY_INTERVAL_CUSTOMER': (lambda x, y: f"{is_positive_int(x)}{time_unit_to_letter(y)}",
                                     'notify/customer/period',
                                     'notify/customer/unitOfTime'),
        'NOTIFY_RESELLER_ON_TOTAL_FAULTS': (lambda x: boolean_to_yes_no(x), 'notifyReseller'),
        'NOTIFY_RESELLER_ON_CUSTOMERS_FAULTS': (lambda x: boolean_to_yes_no(x), 'notifyResellerOnCustomers'),
        'NOTIFY_CUSTOMERS_ON_FAULTS': (lambda x: boolean_to_yes_no(x), 'notifyCustomers'),
        'NOTIFY_MIN_FAULTS_RESELLER': 'minimumNumberOfFaultsToNotify/reseller',
        'NOTIFY_MIN_FAULTS_CUSTOMER': 'minimumNumberOfFaultsToNotify/customer'})

new_config = {}

def get_val_by_path(path):
        path_parts = path.split('/')
        try:
            point = parameters_dict
            for part in path_parts:
                point = point[part]
        except KeyError:
            point = notifier_params['faultsNotification']
            for part in path_parts:
                point = point[part]
        return point

for key, val in faults_config_map.items():
        try:
            if isinstance(val, str):
                new_config[key] = get_val_by_path(val)
            else:
                new_config[key] = val[0](*(get_val_by_path(x) for x in val[1:]))
        except KeyError:
            continue

# to do not change iter object while iterate it
    config_to_write = [line.strip() for line in config_lines]
    try:
        for idx, line in enumerate(config_lines):
            # Pass comment lines
            if line.startswith('#') or line.strip() == '':
                continue
            try:
                key, value = line.split('=')
            except ValueError as e:
                raise LveStats2Exception({
                    'message': '%(lvestats_cfg)s format error: ' + f'{idx + 1}: {line}',
                    'context': {'lvestats_cfg': config_path}}) from e
            if key in new_config:
                # Parameter must be changed
                config_to_write[idx] = f"{key}={new_config[key]}"
                # Remove used parameter
                del new_config[key]
    except (KeyError, IndexError) as e:
        raise LveStats2Exception({'message': "%(lvestats_cfg)s format error: " + str(e),
                                  'context': {'lvestats_cfg': config_path}}) from e
    # Add absent options
    for key, value in new_config.items():
        config_to_write.append(f"{key}={value}")

# Write config back to file
    try:
        with open(config_path, 'w', encoding='utf-8') as f:
            f.writelines('\n'.join(config_to_write))
    except (IOError, OSError) as e:
        raise LveStats2Exception({'message': "%(lvestats_cfg)s write error: " + str(e),
                                  'context': {'lvestats_cfg': config_path}}) from e
    # Restart lvestats server
    # /sbin/service lvestats reload
    subprocess.run('/sbin/service lvestats reload &>/dev/null &',
                   shell=True, executable='/bin/bash', check=False)

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2025-09-06 07:00:47
..	dir	-	root/root	0755	2025-09-06 07:00:47
__pycache__	dir	-	root/root	0755	2025-09-06 11:28:14
__init__.py	text/x-script.python	351 B	root/root	0644	2025-08-29 06:39:59
cagefs_statistics_config.py	text/x-script.python	3.26 KB	root/root	0644	2025-08-29 06:39:59
cl_config_arg_parse.py	text/x-script.python	2.23 KB	root/root	0644	2025-08-29 06:39:59
clconfig_utils.py	text/x-script.python	2.84 KB	root/root	0644	2025-08-29 06:39:59
config.py		23.64 KB	root/root	0640	2025-08-29 06:39:59
db_governor_lib.py	text/x-script.python	15.19 KB	root/root	0644	2025-08-29 06:39:59
db_info_lib.py	text/x-script.python	3.63 KB	root/root	0644	2025-08-29 06:39:59
lve_stats2_lib.py	text/x-script.python	10.63 KB	root/root	0644	2025-08-29 06:39:59
lve_stats2_reseller_lib.py	text/x-script.python	11.05 KB	root/root	0644	2025-08-29 06:39:59
ui_config_lib.py	text/x-script.python	4.74 KB	root/root	0644	2025-08-29 06:39:59

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