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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
bursting	[ DIR ]	drwxr-xr-x
chart	[ DIR ]	drwxr-xr-x
commons	[ DIR ]	drwxr-xr-x
info	[ DIR ]	drwxr-xr-x
parsers	[ DIR ]	drwxr-xr-x
__init__.py	219 B	-rw-r--r--
cloudlinux_statistics.py	25.46 KB	-rw-r--r--
cloudlinux_statsnotifier.py	5.21 KB	-rw-r--r--
config.py	2.94 KB	-rw-r--r--
db_functions.py	1.6 KB	-rw-r--r--
dbengine.py	10.69 KB	-rw-r--r--
jsonhandler.py	482 B	-rw-r--r--
lve_create_db.py	1.92 KB	-rw-r--r--
lve_list.py	3.39 KB	-rw-r--r--
lveinfolib.py	40.36 KB	-rw-r--r--
lveinfolib_gov.py	13.59 KB	-rw-r--r--
lvestats_server.py	8.32 KB	-rw-r--r--
notifications_helper.py	5.45 KB	-rw-r--r--
server_id.py	5.39 KB	-rw-r--r--
snapshot.py	7.39 KB	-rw-r--r--
uidconverter.py	5.11 KB	-rw-r--r--
ustate.py	8.22 KB	-rw-r--r--

Code Editor : notifications_helper.py

#!/usr/bin/python
# coding=utf-8
#
# 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
from __future__ import absolute_import
import logging
import os
import pickle
import time

from typing import Dict, Union, Iterable  # pylint: disable=unused-import

__author__ = "Aleksandr Shyshatsky"

class NotificationsHelper(object):
    """
    Helper for our StatsNotifier plugin, contains 
    logic related to notification periods
    """

STATSNOTIFIER_LAST_TS = "/var/lve/statsnotifier_last.ts"
    RESELLERS_NOTIFICATIONS_STORAGE = "/var/lve/statsnotifier_timestamps.bin"

def __init__(self):
        self._users_notification_info = {}  # type: Dict[int, float]
        self._resellers_notification_info = {}  # type: Dict[int, float]
        self._admin_notify_time = -1
        self._log = logging.getLogger(__name__)

# let's load info after service restart
        self._load_from_persistent_storage()

def _load_from_persistent_storage(self):
        # type: () -> None
        """
        Load information about periods from persistent storage.
        Admin timestamp contains in separate file, 
        in order to make it backwards-compatible with old logic
        """
        self._admin_notify_time = self._read_ts_from_file()

if not os.path.exists(self.RESELLERS_NOTIFICATIONS_STORAGE):
            return
        try:
            with open(self.RESELLERS_NOTIFICATIONS_STORAGE, 'rb') as f:
                self._users_notification_info, self._resellers_notification_info = pickle.load(f)
        except (IOError, EOFError):
            self._log.exception(u"Cannot load data from persistent storage")

def save_to_persistent_storage(self):
        # type: () -> None
        """
        Save information about periods on disk.
        Admin timestamp contains in separate file, plain text.
        Resellers info is pickle'd and saved into other file.
        """
        self._save_ts_to_file(self._admin_notify_time)

try:
            with open(self.RESELLERS_NOTIFICATIONS_STORAGE, 'wb') as f:
                pickle.dump((self._users_notification_info, self._resellers_notification_info), f, protocol=2)
        except IOError:
            self._log.warning("Unable to save resellers timestamps to file")

def _save_ts_to_file(self, ts):
        # type: (float) -> None
        try:
            with open(self.STATSNOTIFIER_LAST_TS, 'w') as f:
                f.write(str(ts))
        except IOError:
            self._log.warning("Unable to save admin timestamp to file")

def _read_ts_from_file(self):
        # type: () -> float
        try:
            with open(self.STATSNOTIFIER_LAST_TS, 'r') as f:
                ts = float(f.readline().rstrip())
                return ts
        except IOError:
            return -1
        except ValueError as e:
            self._log.warning("Unable to read %s (%s)" % (self.STATSNOTIFIER_LAST_TS, str(e)))
            return -1

@staticmethod
    def _get_current_timestamp():
        # type: () -> float
        """
        Get current timestamp. In future, we may do
        some things here, like "round(time / 60**2)"
        """
        return time.time()

def mark_resellers_notified(self, resellers_id):
        # type: (Iterable[int]) -> None
        """
        Mark resellers as notified. S
        aves current timestamp in memory.
        """
        ts = self._get_current_timestamp()
        for reseller_id in resellers_id:
            self._log.debug("Reseller marked as notified at %s for %s", ts, reseller_id)
            self._resellers_notification_info[reseller_id] = ts

def mark_users_notified(self, resellers_id):
        # type: (Iterable[int]) -> None
        """
        Mark users as notified. 
        Saves current timestamp in memory.
        """
        ts = self._get_current_timestamp()
        for reseller_id in resellers_id:
            self._log.debug("Users marked as notified at %s for %s", ts, reseller_id)
            self._users_notification_info[reseller_id] = ts

def mark_admin_notified(self):
        # type: () -> None
        """
        Mark admin as notified. 
        Saves current timestamp in memory.
        """
        self._log.debug("Admin marked as notified at %s", time.time())
        self._admin_notify_time = self._get_current_timestamp()

def users_need_notification(self, reseller_id, notify_period):
        # type: (int, Union[int, float]) -> bool
        """
        Check if reseller's users need to be notified 
        (period is more than time elapsed)
        """
        time_since_last_check = self._get_current_timestamp() - self._users_notification_info.get(reseller_id, -1)
        return time_since_last_check > notify_period

def reseller_need_notification(self, reseller_id, notify_period):
        # type: (int, Union[int, float]) -> bool
        """
        Check if reseller himself needs to be notified 
        (period is more than time elapsed)
        """
        time_since_last_check = self._get_current_timestamp() - self._resellers_notification_info.get(reseller_id, -1)
        return time_since_last_check > notify_period

def admin_need_notification(self, notify_period):
        # type: (Union[int, float]) -> bool
        """
        Check if admin needs to be notified 
        (period is more than time elapsed)
        """
        return self._admin_notify_time + notify_period < self._get_current_timestamp()

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Code Editor : notifications_helper.py