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?? Editing: daemon.py

# coding=utf-8
#
# Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2021 All Rights Reserved
#
# Licensed under CLOUD LINUX LICENSE AGREEMENT
# http://cloudlinux.com/docs/LICENCE.TXT
#
import logging
import os
import signal
import subprocess
import time
import json
import socket
import select
import pwd
import struct
from typing import Optional, Dict, Tuple, List
from contextlib import contextmanager
from collections import namedtuple
from threading import Lock, Thread

from clwpos import gettext as _

from clcommon.cpapi import (
    cpusers,
    get_domains_php_info,
    docroot,
    get_installed_php_versions,
    get_main_username_by_uid,
    cpinfo
)
from clcommon.utils import (
    get_process_pid, remove_pid_file,
    write_pid_file, is_litespeed_running, is_nginx_running
)
from clwpos.daemon_redis_lib import (
    is_user_redis_alive, kill_all_users_redises,
    reload_redis_for_user_thread, parse_redises,
)
import clwpos.socket_utils as socket_utils
from clwpos.daemon_base import WposDaemonBase
from clwpos.constants import WPOS_DAEMON_SOCKET_FILE
from clwpos.cl_wpos_exceptions import WposDaemonLockError
from clwpos.daemon_subscription_handler import PendingSubscriptionWatcher

User_data = namedtuple('User_data', ['redis_pid', 'lock', 'last_reload_time'])

logger = logging.getLogger(__name__)

@contextmanager
def _umask_0():
    """
    Context manager for dropping umask
    """
    prev = os.umask(0)
    yield
    os.umask(prev)

def _create_socket() -> socket.socket:
    """
    Create world-writable socket in given sock_location
    or reuse existing one
    :return: socket object
    """
    with _umask_0():
        sockobj = socket.socket(socket.AF_UNIX)
        sockobj.bind(WPOS_DAEMON_SOCKET_FILE)
        sockobj.listen()
        return sockobj

@contextmanager
def non_blocking_lock(lock: Lock):
    """
    Non-blocking lock implementation for with statement
    """
    if not lock.acquire(blocking=False):
        raise WposDaemonLockError(message=_("Can't acquire lock. May be it already acquired."))
    try:
        yield lock
    finally:
        lock.release()

def whmapi1(function: str, input_parameters: Optional[Dict[str, str]] = None):
    input_parameters_as_list = [f"{key}={value}" for key, value in input_parameters.items()] if input_parameters else []
    result = subprocess.run(["/usr/sbin/whmapi1", "--output=json", function, *input_parameters_as_list],
                            capture_output=True)

return json.loads(result.stdout.decode())["data"]

class WposDaemon(WposDaemonBase):
    """
    AccelerateWP daemon main class. Socket operations, redis process control, etc
    """
    _WPOS_DAEMON_RELOAD_FILE = "/var/lve/wpos_reload"
    _DAEMON_RELOAD_COMMAND = 'reload'
    _DAEMON_GET_REDIS_STATUS_COMMAND = 'get-redis-status'
    _DAEMON_GET_LITESPEED_STATUS_COMMAND = 'get-litespeed-status'
    _DAEMON_GET_NGINX_STATUS_COMMAND = 'get-nginx-status'
    _DAEMON_GET_APACHE2NGINX_STATUS_COMMAND = 'get-apache2nginx-status'
    DAEMON_PHP_GET_VHOST_VERSIONS_COMMAND = "php_get_vhost_versions"
    DAEMON_PHP_GET_INSTALLED_VERSIONS_COMMAND = "php_get_installed_versions"
    DAEMON_GET_UPGRADE_LINK_COMMAND = "get_upgrade_link"
    DAEMON_GET_UNIQUE_ID_COMMAND = "get_unique_id"
    DAEMON_SUITE_ALLOWED_CALLBACK = "suite_allowed_callback"
    DAEMON_REGISTER_UPGRADE_ATTEMPT = "daemon_register_upgrade"

DAEMON_GET_UPGRADE_ATTEMPT_STATUS = "daemon_get_upgrade_status"
    DAEMON_GET_SUPPORTED_SUITES_BY_LICENSE = "daemon_get_supported_suites_by_license"
    DAEMON_IS_USER_OWNED_BY_RESELLER = "daemon_is_owned_by_reseller"
    DAEMON_IS_WP2_ENVIRONMENT = "daemon_is_wp2_environment"
    _DAEMON_VALID_COMMANDS = [
        _DAEMON_RELOAD_COMMAND,
        _DAEMON_GET_REDIS_STATUS_COMMAND,
        _DAEMON_GET_LITESPEED_STATUS_COMMAND,
        _DAEMON_GET_NGINX_STATUS_COMMAND,
        _DAEMON_GET_APACHE2NGINX_STATUS_COMMAND,
        DAEMON_PHP_GET_VHOST_VERSIONS_COMMAND,
        DAEMON_PHP_GET_INSTALLED_VERSIONS_COMMAND,
        DAEMON_GET_UPGRADE_LINK_COMMAND,
        DAEMON_GET_UNIQUE_ID_COMMAND,
        DAEMON_REGISTER_UPGRADE_ATTEMPT,
        DAEMON_GET_UPGRADE_ATTEMPT_STATUS,
        DAEMON_SUITE_ALLOWED_CALLBACK,
        DAEMON_GET_SUPPORTED_SUITES_BY_LICENSE,
        DAEMON_IS_USER_OWNED_BY_RESELLER,
        DAEMON_IS_WP2_ENVIRONMENT,
    ]
    _DAEMON_VALID_COMMANDS_FOR_ROOT = [
        _DAEMON_RELOAD_COMMAND,
        DAEMON_GET_UPGRADE_LINK_COMMAND,
        DAEMON_GET_UNIQUE_ID_COMMAND,
        DAEMON_GET_UPGRADE_ATTEMPT_STATUS,
        DAEMON_SUITE_ALLOWED_CALLBACK,
        DAEMON_GET_SUPPORTED_SUITES_BY_LICENSE,
        DAEMON_IS_USER_OWNED_BY_RESELLER,
        DAEMON_IS_WP2_ENVIRONMENT,
    ]
    # Minimum allowed time between "reload" commands from same user, sec
    _MIN_ALLOWED_RELOAD_PERIOD = 15
    # Waiting redis socket presence timeout, sec
    _REDIS_SOCKET_WAIT_TIMEOUT = 20

def __init__(self):
        super().__init__()
        # Dictionary with user's redices PIDs for monitoring
        # Example:
        # {1001: User_data(redis_pid=136181, lock= < unlocked _thread.lock object at 0x7fbece922840 >,
        #                  last_reload_time = 0)}
        self._monitoring_users_dict: Dict[int, User_data] = {}
        self._username_list_to_process = []
        self._socket: Optional[socket.socket] = None
        # User uid from socket to reload, 0 - no user to reload
        self._reload_uid = 0
        self._socket_thread: Optional[Thread] = None
        self._socket_thread_work = True

self._suite_watcher = PendingSubscriptionWatcher()

def _reload_redis_for_user(self, user_uid: int, is_store_last_reload_time: bool, force_reload: str = 'no') -> Dict:
        """
        Starts/stops redis for user and updates dict for monitoring (self._monitoring_users_dict)
        :param user_uid: uid to reload redis
        :param is_store_last_reload_time: True -  write last reload time to user data, False - write 0
        :return: dict {"result": "success"} / {"result": "error", "context": {}}
        """
        # self._monitoring_users_dict example:
        # {1001: User_data(redis_pid=136181, lock= < unlocked _thread.lock object at 0x7fbece922840 >,
        # last_reload_time = 0)}
        try:
            userdata = self._monitoring_users_dict.get(user_uid)
            if userdata is None:
                old_redis_pid = None
            else:
                old_redis_pid = userdata.redis_pid

username = get_main_username_by_uid(user_uid)

logger.info('Reloading redis for user: %s, force reload: %s',
                        username, force_reload)
            new_redis_pid, result_dict = reload_redis_for_user_thread(
                username, old_redis_pid, force_reload)
            # check error
            if result_dict["result"] != "success":
                logger.info('Redis reloading failed for user: %s, adding to monitoring '
                            'list to try again in several minutes', username)
                # to monitor failed user and try spawn redis again
                self._monitoring_users_dict[user_uid] = User_data(
                    redis_pid=new_redis_pid, lock=Lock(), last_reload_time=0)
                return result_dict
            if new_redis_pid:
                # Redis was started for user
                # last_reload_time == 0 disables reload interval check
                if not self._config.enable_reload_rate_limit or not is_store_last_reload_time:
                    last_reload_time = 0
                else:
                    last_reload_time = time.time()
                user_redis_data = User_data(redis_pid=new_redis_pid, lock=Lock(),
                                                                  last_reload_time=last_reload_time)
                self._monitoring_users_dict[user_uid] = user_redis_data
                logger.info('Saving user=%s to monitoring with data=%s', username, str(user_redis_data))
            else:
                # Redis was stopped for user
                if user_uid in self._monitoring_users_dict:
                    logger.info('Removing user=%s from monitoring', username)
                    del self._monitoring_users_dict[user_uid]
        except Exception as e:
            logger.exception(e)
            return {"result": str(e)}
        return {"result": "success"}

def _user_monitoring(self, user_uid: int) -> bool:
        """
        One user monitoring actions
        :param user_uid: uid to reload redis
        :return: User remove flag:
         True - user has stopped his redis (or user absent in system), remove it from monitoring list
         False - redis still active, should be monitored again
        """
        user_data: User_data = self._monitoring_users_dict[user_uid]
        username = ''
        try:
            with non_blocking_lock(user_data.lock):
                is_redis_alive, is_user_present, _ = is_user_redis_alive(user_uid)
                if not is_user_present:
                    return True
                if is_redis_alive:
                    return False
                # Redis process is died, restart it
                username = get_main_username_by_uid(user_uid)
                logger.info('Redis instance died for username=%s, restarting', username)
                redis_pid, result_dict = reload_redis_for_user_thread(
                    username,
                    self._monitoring_users_dict[user_uid].redis_pid)
                if redis_pid is None and result_dict["result"] == "success":
                    # User has stopped his redis
                    return True
                # User's redis was successfully restarted
                self._monitoring_users_dict[user_uid] = User_data(redis_pid=redis_pid, lock=user_data.lock,
                                                                  last_reload_time=0)
        except WposDaemonLockError as e:
            # non_blocking_lock exception: User is working with his redis, skip monitoring actions
            logger.debug("Lock error: %s. User %s (uid=%d) is working with his redis, skip monitoring actions",
                               e.message, username, user_uid)
        except Exception as e:
            logger.exception(e)
        return False

def _redises_monitoring(self):
        """
        Working redises monitoring
        """
        user_ids_list_to_remove = []
        # this list may change during iteration in another thread
        logger.info('Those users are currently being monitored: %s',
                    str(self._monitoring_users_dict.items()))
        for user_id in list(self._monitoring_users_dict.keys()):
            is_remove = self._user_monitoring(user_id)
            if is_remove:
                user_ids_list_to_remove.append(user_id)
        # Remove absent users from monitoring list
        for user_id in user_ids_list_to_remove:
            if user_id in self._monitoring_users_dict:
                logger.info('Removing user=%s from monitoring list', str(user_id))
                del self._monitoring_users_dict[user_id]

def _reload_all_users(self):
        """
        Process all requests - start/stop redis for users
        """
        if self._reload_config_need:
            # if SIGHUP was happened - reload all users config (full reload)
            self._reload_config_need = False
            # Read all user .clwpos/clwpos_config.json data
            all_users = cpusers()
            logger.info('Checking redis instance for those users=%s', str(all_users))
            for username in all_users:
                try:
                    user_id = pwd.getpwnam(username).pw_uid
                except KeyError:
                    continue

monitored_user_data = self._monitoring_users_dict.get(user_id)
                logger.info('Current user data for redis instance monitoring=%s', str(monitored_user_data))
                if not monitored_user_data or not monitored_user_data.redis_pid:
                    self._reload_redis_for_user(user_id, False)

def _main_cycle(self):
        # Main daemon cycle
        i = 0
        existing_redises = parse_redises()  # type: List[Tuple[int, int]]
        logger.info('Found existing redises: %s', existing_redises)
        for item in existing_redises:
            self._monitoring_users_dict.update({item[0]: User_data(redis_pid=item[1], lock=Lock(), last_reload_time=0)})
        while not self._is_terminate:
            try:
                # Self-reload if lvectl destroy was called
                self._force_reload()
                self._reload_all_users()
                if self._is_terminate:
                    break
                time.sleep(1)
                i += 1
                if i > self._config.monitoring_interval:
                    # monitoring of existing redises
                    self._redises_monitoring()
                    i = 0
            except Exception:
                logger.exception("Cloudlinux AccelerateWP daemon general error", exc_info=True)

def _create_and_start_socket_thread(self):
        """
        Create and start socket processing thread
        """
        self._socket_thread = Thread(target=self._process_socket_connections)
        self._socket_thread.start()

def run(self):
        """
        Main work daemon function
        """
        if get_process_pid(self._PID_FILENAME) is not None:
            # Error - daemon already works
            logger.warning("PID file %s existing. Cloudlinux AccelerateWP daemon already works?", self._PID_FILENAME)
            return
        if os.path.exists(WPOS_DAEMON_SOCKET_FILE):
            # Error - daemon's socket already exist, remove it
            self._remove_socket()
        # Create daemon's socket
        try:
            self._socket = _create_socket()
        except (OSError, IOError) as e:
            message = "Can't create AccelerateWP daemon socket. Error is: %s"
            # We used .warning instead .error because .error will send message to sentry
            logger.warning(message, str(e))
            return
        logger.info("Cloudlinux AccelerateWP daemon started")
        self._setup_signals()
        write_pid_file(self._PID_FILENAME)
        # Force self-reload at start
        self.reload()
        self._create_and_start_socket_thread()
        # Main daemon_work
        self._main_cycle()
        # Stop socket thread
        self._socket_thread_work = False
        self._socket_thread.join()
        self._remove_socket()
        remove_pid_file(self._PID_FILENAME)
        logger.info("Cloudlinux AccelerateWP daemon terminated")

def _force_reload(self):
        """
        Force reload daemon
        """
        # Force reload if flag file exists
        if os.path.isfile(self._WPOS_DAEMON_RELOAD_FILE):
            # self reload
            self.reload()
            try:
                os.remove(self._WPOS_DAEMON_RELOAD_FILE)
            except (OSError, IOError):
                pass

def _remove_socket(self):
        """
        Remove daemon's socket file
        """
        try:
            logger.info("Removing socket %s", WPOS_DAEMON_SOCKET_FILE)
            if self._socket is not None:
                self._socket.close()
            os.remove(WPOS_DAEMON_SOCKET_FILE)
            logger.info("Socket %s removed", WPOS_DAEMON_SOCKET_FILE)
        except (OSError, IOError) as e:
            logger.warning("Can't remove socket %s. Error: %s", WPOS_DAEMON_SOCKET_FILE, str(e))

def stop(self, graceful: bool = False, timeout=15, interval=1):
        """
        Stops a working daemon process
        """
        pid = get_process_pid(self._PID_FILENAME)
        if pid:
            # Try killing the daemon process
            try:
                logger.info('Killing process with PID %s', pid)
                os.kill(pid, signal.SIGTERM)
            except OSError as e:
                logger.info('Process with pid %s is not possible to be killed: %s', pid, e)

# give process some time to die
            i = 0
            while i < timeout:
                try:
                    os.kill(pid, 0)
                except OSError:
                    logger.info('Process with pid %s is finally dead', pid)
                    break
                i += interval
                time.sleep(interval)
            else:
                # still alive somehow? force kill
                logger.info('Process with pid %s did not exit in timeout, sigkilling it', pid)
                try:
                    os.kill(pid, signal.SIGKILL)
                except OSError as e:
                    logger.info('Process with pid %s is not possible to be killed: %s', pid, e)
        if graceful:
            logger.info('Graceful shutdown, killing all existing redis processes')
            # Terminate all user's redices
            kill_all_users_redises(logger)
        # Remove PID file
        remove_pid_file(self._PID_FILENAME)
        logger.info("Cloudlinux AccelerateWP daemon stopped")

####################################
    # Socket functions

@staticmethod
    def _get_litespeed_status() -> dict:
        """
        Get litespeed webserver status: running or not.
        :return: Dict to send to clwpos-user via socket
        """
        return {'result': 'success', 'timestamp': time.time(), 'status': is_litespeed_running()}

@staticmethod
    def _get_nginx_status() -> dict:
        """
        Get nginx webserver status: running or not.
        :return: Dict to send to clwpos-user via socket
        """
        return {'result': 'success', 'timestamp': time.time(), 'status': is_nginx_running()}

@staticmethod
    def _get_apache2nginx_status() -> dict:
        """
        Get apache2nginx webserver status: running or not.
        :return: Dict to send to clwpos-user via socket
        """
        from clcommon.utils import is_apache2nginx_running
        return {'result': 'success', 'timestamp': time.time(), 'status': is_apache2nginx_running()}

def _validate_socket_connection(self, client_socket_obj: socket.socket) -> Tuple[bool, int, Optional[str],
                                                                                     Optional[dict], bool]:
        """
        Validate socket connection. Check:
         - root connections
         - connection user presense
         - command validity
        :return: tuple(is_connection_valid, uid, username, user_request_dict, is_root_query)
          is_connection_valid:
           True - Socket connection valid, should be processed. uid, username and user_request_dict filled
           False - invalid connection, should be skipped. uid == -1, username and user_request_dict = None
          is_root_query - True - root query, do not check reload interval
        """
        _uid = socket_utils.get_uid_from_socket(client_socket_obj)
        try:
            username = get_main_username_by_uid(_uid)
        except KeyError:
            socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj,
                                                                  {'result': 'No user uid=%(uid)d',
                                                                   'context': {'uid': _uid},
                                                                   'timestamp': time.time()})
            return False, -1, None, None, False
        try:
            user_request: Optional[dict] = socket_utils.read_unpack_response_from_socket_daemon(client_socket_obj)
        except (socket.error, socket.timeout, json.JSONDecodeError, struct.error, AttributeError, UnicodeDecodeError):
            user_request = None
        if user_request is None:
            # Undecodable request (invalid message format, bad json, etc) from user to socket
            socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj,
                                                                  {"result": "User %(username)s sent invalid query to "
                                                                             "CL AccelerateWP daemon",
                                                                   "context": {"username": username}})
            return False, -1, None, None, False
        if 'command' not in user_request:
            # User sent invalid query
            socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj,
                                                                  {'result': 'Daemon received malformed query ('
                                                                             'command absent)',
                                                                   'timestamp': time.time()})
            return False, -1, None, None, False

if user_request['command'] not in self._DAEMON_VALID_COMMANDS:
            # User sent invalid query
            socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj,
                                                                  {'result': 'Daemon received invalid command',
                                                                   'timestamp': time.time()})
            return False, -1, None, None, False

if _uid == 0:
            # Query from admin via clwpos-admin set-module --users=xxxx --disallowed --modules=object_cache
            if 'uid' not in user_request:
                socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj,
                                                                      {'result': 'Root request to daemon should '
                                                                                 'contain uid',
                                                                       'timestamp': time.time()})
                return False, -1, None, None, False

_uid = user_request['uid']
            try:
                username = get_main_username_by_uid(_uid)
            except KeyError:
                socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj,
                                                                      {'result': 'No user uid=%(uid)d',
                                                                       'context': {'uid': _uid},
                                                                       'timestamp': time.time()})
                return False, -1, None, None, False
            if user_request['command'] not in self._DAEMON_VALID_COMMANDS_FOR_ROOT:
                # User sent invalid query
                socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj,
                                                                      {'result': 'Daemon received invalid command',
                                                                       'timestamp': time.time()})
                return False, -1, None, None, False
            # Valid query from root
            return True, _uid, username, user_request, True
        # Valid query from user
        return True, _uid, username, user_request, False

def _socket_user_get_redis_status(self, client_socket_obj: socket.socket, username: str, uid: int):
        """
        Get redis status for user (socket query)
        :param client_socket_obj: Client socket connection
        :param username: User name
        :param uid: User uid
        """
        # Get redis status for user
        user_data: User_data = self._monitoring_users_dict.get(uid, None)
        if user_data is None:
            # User has no redis yet
            socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj,
                                                                  {"result": "User %(username)s has no redis yet",
                                                                   "context": {"username": username}})
        else:
            with user_data.lock:
                is_redis_alive, _, result_dict = is_user_redis_alive(uid)
                # check error
                if result_dict["result"] == "success":
                    result_dict['status'] = is_redis_alive
                socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, result_dict)

def _is_reload_available(self, last_reload_time: int) -> bool:
        """
        Checks is reload available by checking time
        :return: True - available, False - not available
        """
        return last_reload_time == 0 or time.time() - last_reload_time > self._MIN_ALLOWED_RELOAD_PERIOD

def _socket_user_redis_reload(self, client_socket_obj: socket.socket,
                                  username: str,
                                  uid: int,
                                  is_root_query: bool,
                                  force_reload: str = 'no',
                                  skip_last_time_check: bool = False):
        """
        Reload redis for user (socket query)
        :param client_socket_obj: Client socket connection
        :param username: User name
        :param uid: User uid
        :param is_root_query: True - reload redis by root, do not check reload interval
          False - user reload, check reload interval
        """
        user_data: User_data = self._monitoring_users_dict.get(uid)
        logger.info('[Redis reload request] Current user=%s data=%s', str(username), str(user_data))

if user_data is None or user_data.redis_pid is None:
            # User has no redis yet, reload. Lock object not available here.
            result_dict = self._reload_redis_for_user(uid, True, force_reload=force_reload)
            result_dict['timestamp'] = time.time()
            socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, result_dict)
            logger.debug("[Redis user data not found] "
                               "Cloudlinux AccelerateWP daemon reloaded for user %s (uid=%d)", username, uid)
            return
        # User already has redis
        last_reload_time = user_data.last_reload_time
        if not skip_last_time_check and not is_root_query and not self._is_reload_available(last_reload_time):
            # Last reload was less then self._MIN_ALLOWED_RELOAD_PERIOD seconds
            # ago -- skip (possibly DDoS attack to socket?)
            result_dict = {'timestamp': time.time(),
                           "result": "Can't reload redis for user %(user)s. Last reload was less than %(sec)s "
                                     "seconds ago",
                           "context": {"user": username, "sec": self._MIN_ALLOWED_RELOAD_PERIOD}}
            socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, result_dict)
            return
        # No DDoS, reload
        with user_data.lock:
            result_dict = self._reload_redis_for_user(uid, True)
            result_dict['timestamp'] = time.time()
            socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, result_dict)
            logger.info("[Redis user data found] "
                               "Cloudlinux AccelerateWP daemon reloaded for user %s (uid=%d)", username, uid)

@staticmethod
    def _php_get_vhost_versions(account: str = None, logger=None, php_vhost_data=None) -> list:

def _cast(handler_name: str, version_id: str) -> str:
            if handler_name == 'fpm':
                return 'php-fpm'
            elif 'x-httpd-lsphp' in version_id:
                return 'lsapi'
            # for DirectAdmin
            elif handler_name and 'lsphp' in handler_name:
                return 'lsapi'

return handler_name

vhosts_data = php_vhost_data or get_domains_php_info()
        if logger:
            logger.info("[PHP vhost info]: %s", str(vhosts_data))

if account is not None:
            vhosts_data = {key: value for key, value in vhosts_data.items()
                           if value['username'] == account}

result = []
        for key, value in vhosts_data.items():
            try:
                result.append(
                    {'vhost': key, 'account': value['username'],
                     'version': value['display_version'],
                     'handler': _cast(value['handler_type'], value['php_version_id']),
                     'documentroot': docroot(key)[0]})
            except Exception:
                # there are places where we use it as staticmethod
                if logger:
                    logger.exception('Error on getting php version for %s, skip', key)
                continue

return result

def _socket_user_litespeed_status(self, client_socket_obj: socket.socket):
        """
        Get litespeed status for user
        """
        # Get litespeed status for user
        result: dict = self._get_litespeed_status()
        socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, result)

def _socket_user_nginx_status(self, client_socket_obj: socket.socket):
        """
        Get nginx status for user
        """
        # Get nginx status for user
        result: dict = self._get_nginx_status()
        socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, result)

def _socket_user_apache2nginx_status(self, client_socket_obj: socket.socket):
        """
        Get apache2nginx status for user
        """
        # Get apache2nginx status for user
        result: dict = self._get_apache2nginx_status()
        socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, result)

def _socket_user_php_get_vhost_versions(self, client_socket_obj: socket.socket, account: str):
        try:
            vhost_data = self._php_get_vhost_versions(account, logger=logger)
        except Exception as e:
            response: dict = {
                "result": "Daemon cannot get vhosts data: %(reason)s",
                "context": str(e)
            }
        else:
            response: dict = {
                "result": "success",  # it's necessary key-value combination
                "data": vhost_data
            }
        socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, response)

def _socket_user_php_get_installed_versions(self, client_socket_obj: socket.socket):
        response: dict = {
            "result": "success",  # it's necessary key-value combination
            "data": get_installed_php_versions()
        }
        socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, response)

def _get_upgrade_link(self, client_socket_obj: socket.socket, username, feature):
        # another circular import
        # fix it with previous one
        # https://gerrit.cloudlinux.com/c/accelerate-wp/+/116499
        from clwpos.utils import get_server_wide_options

server_options = get_server_wide_options()
        response: dict = {
            "result": "success",
            "upgrade_url": server_options.get_upgrade_url_for_user(
                username=username,
                domain=cpinfo(username, keyls=('dns',))[0][0],
                feature=feature
            )
        }
        socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, response)

def _get_unique_id(self, client_socket_obj: socket.socket, username):
        """
        Get unique identifier which we use as user's auth token
        """
        from clwpos.billing import get_or_create_unique_identifier
        response: dict = {
            "result": "success",
            "unique_id": get_or_create_unique_identifier(username)
        }
        socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, response)

def _get_supported_suites_by_license(self, client_socket_obj: socket.socket):
        from clwpos.utils import get_suites_status_from_license
        awp_premium_status, awp_cdn_status = get_suites_status_from_license()
        response: dict = {
            "result": "success",
            "accelerate_wp_premium": awp_premium_status,
            "accelerate_wp_cdn": awp_cdn_status
        }
        socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, response)

def _get_is_user_owned_by_reseller(self, client_socket_obj: socket.socket, username):
        from clwpos.utils import is_user_owned_by_reseller
        is_owned_by_reseller = is_user_owned_by_reseller(username, force_as_root=True)
        response: dict = {
            "result": "success",
            "is_owned_by_reseller": is_owned_by_reseller
        }
        socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, response)

def _get_is_wp2_environment(self, client_socket_obj: socket.socket):
        from clcommon.cpapi import is_wp2_environment
        is_wp2 = is_wp2_environment()
        response: dict = {
            "result": "success",
            "is_wp2": is_wp2
        }
        socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, response)

def _handle_client_socket_connection(self, client_socket_obj: socket.socket) -> None:
        """
        Process client's socket connection (Works in thread)
        :param client_socket_obj: Client socket connection
        """
        try:
            is_connection_valid, uid, username, user_request, is_root_query = \
                self._validate_socket_connection(client_socket_obj)
            if not is_connection_valid:
                return

logger.info('Income user request=%s', str(user_request))

# User command processing
            # TODO replace this on decorator for method which handles command
            if user_request['command'] == self._DAEMON_GET_REDIS_STATUS_COMMAND:
                # Get user redis status
                self._socket_user_get_redis_status(client_socket_obj, username, uid)
            elif user_request['command'] == self._DAEMON_RELOAD_COMMAND:
                # Reload user's redis
                force_reload = user_request.get('force_reload', 'no')
                skip_last_time_check = user_request.get('skip_last_reload_time', 'no') == 'yes'
                self._socket_user_redis_reload(client_socket_obj,
                                               username,
                                               uid,
                                               is_root_query,
                                               force_reload,
                                               skip_last_time_check)
            elif user_request['command'] == self._DAEMON_GET_LITESPEED_STATUS_COMMAND:
                self._socket_user_litespeed_status(client_socket_obj)
            elif user_request['command'] == self._DAEMON_GET_NGINX_STATUS_COMMAND:
                self._socket_user_nginx_status(client_socket_obj)
            elif user_request['command'] == self._DAEMON_GET_APACHE2NGINX_STATUS_COMMAND:
                self._socket_user_apache2nginx_status(client_socket_obj)
            elif user_request["command"] == self.DAEMON_PHP_GET_VHOST_VERSIONS_COMMAND:
                self._socket_user_php_get_vhost_versions(client_socket_obj, username)
            elif user_request["command"] == self.DAEMON_PHP_GET_INSTALLED_VERSIONS_COMMAND:
                self._socket_user_php_get_installed_versions(client_socket_obj)
            elif user_request["command"] == self.DAEMON_GET_UPGRADE_LINK_COMMAND:
                self._get_upgrade_link(client_socket_obj, username,
                                       user_request.get('feature', 'object_cache'))
            elif user_request["command"] == self.DAEMON_GET_UNIQUE_ID_COMMAND:
                self._get_unique_id(client_socket_obj, username)
            elif user_request["command"] == self.DAEMON_SUITE_ALLOWED_CALLBACK:
                self._suite_watcher.suite_allowed_callback(client_socket_obj)
            elif user_request["command"] == self.DAEMON_REGISTER_UPGRADE_ATTEMPT:
                self._suite_watcher.add_pending_upgrade_task(client_socket_obj, user_request, uid)
            elif user_request["command"] == self.DAEMON_GET_UPGRADE_ATTEMPT_STATUS:
                self._suite_watcher.get_upgrade_task_status(client_socket_obj, uid,
                                                            user_request.get('feature', 'object_cache'))
            elif user_request["command"] == self.DAEMON_GET_SUPPORTED_SUITES_BY_LICENSE:
                self._get_supported_suites_by_license(client_socket_obj)
            elif user_request["command"] == self.DAEMON_IS_USER_OWNED_BY_RESELLER:
                self._get_is_user_owned_by_reseller(client_socket_obj, username)
            elif user_request["command"] == self.DAEMON_IS_WP2_ENVIRONMENT:
                self._get_is_wp2_environment(client_socket_obj)
        except Exception:
            logger.exception("Socket connection processing error", exc_info=True)
            try:
                socket_utils.send_dict_to_socket_connection_and_close(client_socket_obj, {'result': 'Internal daemon error', 'timestamp': time.time()})
            except BrokenPipeError:
                logger.warning('Broken pipe during error response')

def _process_socket_connections(self):
        """
        Process socket connections (works in thread)
        """
        logger.info("Cloudlinux AccelerateWP daemon socket thread started")
        while self._socket_thread_work:
            readable, _, _ = select.select([self._socket], [], [], 1)
            for _sock_object in readable:
                try:
                    client_socket_obj, _ = _sock_object.accept()
                    t = Thread(target=self._handle_client_socket_connection, args=(client_socket_obj,))
                    t.start()
                except socket.error:
                    logger.exception("Socket connection error", exc_info=True)
        logger.info("Cloudlinux AccelerateWP daemon socket thread stopped")

Path:

opt / cloudlinux / venv / lib / python3.11 / site-packages / clwpos /

?? ..
?? __init__.py
?? __pycache__
?? billing.py
?? bin
?? cl_wpos_exceptions.py
?? cli_versions
?? constants.py
?? create_user_uid_dirs.py
?? cron.py
?? daemon.py
?? daemon_base.py
?? daemon_config.py
?? daemon_redis_lib.py
?? daemon_subscription_handler.py
?? data_collector_utils.py
?? feature_suites
?? hooks
?? logsetup.py
?? migrations
?? object_cache
?? optimization_features
?? papi.py
?? parse.py
?? php
?? redis_configuration_pid_file_cleaner.py
?? report_generator.py
?? scoped_cache.py
?? socket_utils.py
?? stats.py
?? user
?? utils.py
?? whmcs_utils.py
?? wp_config.py
?? wp_utils.py
?? wpos_admin.py
?? wpos_hooks.py
?? wpos_req_scanner.py

?? Editing: daemon.py

Path:

?? Upload