Ahenk/usr/share/ahenk/base/registration/registration.py

#!/usr/bin/python3
# -*- coding: utf-8 -*-
# Author: Volkan Şahin <volkansah.in> <bm.volkansahin@gmail.com>

import datetime
import json
import uuid
from uuid import getnode as get_mac
from base.scope import Scope
from base.messaging.anonymous_messenger import AnonymousMessenger
from base.system.system import System
from base.util.util import Util
from helper import system as sysx
import pwd
from base.timer.setup_timer import SetupTimer
from base.timer.timer import Timer
import re
import os
from base.registration.execute_cancel_sssd_authentication import ExecuteCancelSSSDAuthentication
from base.registration.execute_sssd_authentication import ExecuteSSSDAuthentication
from base.registration.execute_sssd_ad_authentication import ExecuteSSSDAdAuthentication
from base.registration.execute_cancel_sssd_ad_authentication import ExecuteCancelSSSDAdAuthentication

class Registration:
    def __init__(self):
        scope = Scope().get_instance()
        self.logger = scope.get_logger()
        self.message_manager = scope.get_message_manager()
        self.event_manager = scope.get_event_manager()
        self.messenger = scope.get_messenger()
        self.conf_manager = scope.get_configuration_manager()
        self.db_service = scope.get_db_service()
        self.util = Util()
        self.servicename='im.liderahenk.org'
        self.local_user_disable = None

        #self.event_manager.register_event('REGISTRATION_RESPONSE', self.registration_process)
        self.event_manager.register_event('REGISTRATION_SUCCESS', self.registration_success)
        self.event_manager.register_event('REGISTRATION_ERROR', self.registration_error)

        self.ldap_login_cancel = ExecuteCancelSSSDAuthentication()
        self.ad_login_cancel = ExecuteCancelSSSDAdAuthentication()
        self.ldap_login = ExecuteSSSDAuthentication()
        self.ad_login = ExecuteSSSDAdAuthentication()

        self.directory_server = None

        if self.is_registered():
            self.logger.debug('Ahenk already registered')
        else:
            self.register(True)

    def registration_request(self, hostname,username,password):

        self.logger.debug('Requesting registration')
        # SetupTimer.start(Timer(System.Ahenk.registration_timeout(), timeout_function=self.registration_timeout,checker_func=self.is_registered, kwargs=None))

        self.servicename = self.conf_manager.get("CONNECTION", "servicename")

        self.host = hostname
        self.user_name = username
        self.user_password= password
        # self.directory_server = directoryserver
        self.showUserNotify = False;

        if(username is None and password is None and self.host is None ):
            self.showUserNotify = True;
            self.host = self.conf_manager.get("CONNECTION", "host")

            user_name= os.getlogin()
            self.logger.info('User : '+ str(user_name))
            pout = Util.show_registration_message(user_name,'Makineyi Lider MYS sistemine kaydetmek için bilgileri ilgili alanlara giriniz. LÜTFEN DEVAM EDEN İŞLEMLERİ SONLANDIRDIĞINZA EMİN OLUNUZ !',
                                                  'LIDER MYS SISTEMINE KAYIT', self.host)
            self.logger.info('pout : ' + str(pout))
            field_values = pout.split(' ')
            user_registration_info = list(field_values)

            if self.host == '':
                self.host = user_registration_info[0]
                self.user_name = user_registration_info[1]
                self.user_password = user_registration_info[2]
                # self.directory_server = user_registration_info[3]

            else:
                self.user_name = user_registration_info[1]
                self.user_password = user_registration_info[2]
                # self.directory_server = user_registration_info[2]

        #anon_messenger = AnonymousMessenger(self.message_manager.registration_msg(user_name,user_password), self.host,self.servicename)
        #anon_messenger.connect_to_server()

        self.logger.debug('Requesting registration')
        SetupTimer.start(Timer(System.Ahenk.registration_timeout(), timeout_function=self.registration_timeout,checker_func=self.is_registered, kwargs=None))
        anon_messenger = AnonymousMessenger(self.message_manager.registration_msg(self.user_name,self.user_password,self.directory_server), self.host,self.servicename)
        anon_messenger.connect_to_server()

    def ldap_registration_request(self):
        self.logger.info('Requesting LDAP registration')
        self.messenger.send_Direct_message(self.message_manager.ldap_registration_msg())

    def registration_success(self, reg_reply):
        try:
            file_common_session = open("/etc/pam.d/common-session", 'r')
            file_data = file_common_session.read()
            pattern = re.compile(r'\s+')
            text = pattern.sub('', file_data)

            if "sessionoptionalpam_script.so" not in text:
                self.logger.info("pam_script.so is not exist in common-session")
                 # Upload to pam_script module
                (result_code, p_out, p_err) = self.util.execute("pam-auth-update --package --enable pam_script")
                if result_code == 0:
                    self.logger.info("'pam-auth-update --package --enable pam_script' has run successfully")
                else:
                    self.logger.error("'pam-auth-update --package --enable pam_script'  could not run successfully: " + p_err)
            else:
                self.logger.info("pam_script.so already exist in common-session")
        except Exception as e:
            self.logger.error('pam-auth-update --package --enable pam_script error. Error Message: {0}.'.format(str(e)))
        try:
            self.local_user_disable = reg_reply['disableLocalUser']
            self.directory_server = reg_reply['directoryServer']

            if self.local_user_disable is True:
                self.conf_manager.set('MACHINE', 'user_disabled', 'true')
            else:
                self.conf_manager.set('MACHINE', 'user_disabled', 'false')

            self.logger.info('LDAP Registration update starting')
            dn = str(reg_reply['agentDn'])
            self.logger.info('Current dn:' + dn)
            self.logger.info('updating host name and service')
            self.update_registration_attrs(dn)

            # lightdm configuration by desktop env is XFCE
            self.desktop_env = self.util.get_desktop_env()
            self.logger.info("Get desktop environment is {0}".format(self.desktop_env))

            if self.directory_server == "LDAP" or self.directory_server == "ACTIVE_DIRECTORY":
                if self.desktop_env == "xfce":
                    self.configure_lightdm()
                if self.desktop_env == "gnome":
                    self.configure_gdm()

            # LDAP registration
            if self.directory_server == "LDAP":
                self.install_and_config_ldap(reg_reply)
                self.change_permissions_for_local_users()
            # AD registration
            elif self.directory_server == "ACTIVE_DIRECTORY":
                self.install_and_config_ad(reg_reply)
                self.change_permissions_for_local_users()

            self.create_ahenk_pulseaudio_desktop_file()

        except Exception as e:
            self.logger.error('Registration error. Error Message: {0}.'.format(str(e)))
            print(e)
            raise

    def update_registration_attrs(self, dn=None):
        self.logger.debug('Registration configuration is updating...')
        self.db_service.update('registration', ['dn', 'registered'], [dn, 1], ' registered = 0')

        if self.conf_manager.has_section('CONNECTION'):
            self.conf_manager.set('CONNECTION', 'uid',
                                  self.db_service.select_one_result('registration', 'jid', ' registered=1'))
            self.conf_manager.set('CONNECTION', 'password',
                                  self.db_service.select_one_result('registration', 'password', ' registered=1'))

            if  self.host and self.servicename:
                self.conf_manager.set('CONNECTION', 'host', self.host)
                self.conf_manager.set('CONNECTION', 'servicename', self.servicename)

            # TODO  get file path?
            with open('/etc/ahenk/ahenk.conf', 'w') as configfile:
                self.conf_manager.write(configfile)
            self.logger.debug('Registration configuration file is updated')

    def install_and_config_ldap(self, reg_reply):
        self.logger.info('ldap install process starting')
        server_address = str(reg_reply['ldapServer'])
        dn = str(reg_reply['ldapBaseDn'])
        version = str(reg_reply['ldapVersion'])
        admin_dn = str(reg_reply['ldapUserDn']) # get user full dn from server.. password same
        #admin_password = self.user_password # same user get from server
        admin_password = self.db_service.select_one_result('registration', 'password', ' registered=1')
        self.ldap_login.authenticate(server_address, dn, admin_dn, admin_password)

        if server_address != '' and dn != '' and  version != '' and admin_dn != '' and admin_password != '':
            self.logger.info("SSSD configuration process starting....")
            self.logger.info("SSSD configuration process starting....")
        else :
            raise Exception(
                'LDAP Ayarları yapılırken hata oluştu. Lütfen ağ bağlantınızı kontrol ediniz. Deponuzun güncel olduğundan emin olunuz.')

    def install_and_config_ad(self, reg_reply):
        self.logger.info('AD install process starting')

        domain_name = str(reg_reply['adDomainName'])
        host_name = str(reg_reply['adHostName'])
        ip_address = str(reg_reply['adIpAddress'])
        password = str(reg_reply['adAdminPassword'])
        ad_username = str(reg_reply['adAdminUserName'])
        dynamic_dns_update = False

        if 'dynamicDNSUpdate' in reg_reply:
            dynamic_dns_update = reg_reply['dynamicDNSUpdate']
            self.logger.info("DynamicDNSUpdate is NOT NULL")
            if domain_name is None or host_name is None or ip_address is None or password is None:
                self.logger.error("Registration params is null")
                return
            self.ad_login.authenticate(domain_name, host_name, ip_address, password, ad_username, dynamic_dns_update)
        else:
            self.logger.info("DynamicDNSUpdate is NULL")
            if domain_name is None or host_name is None or ip_address is None or password is None:
                self.logger.error("Registration params is null")
                return
            self.ad_login.authenticate(domain_name, host_name, ip_address, password, ad_username, dynamic_dns_update)
        # self.ad_login.authenticate(domain_name, host_name, ip_address, password, ad_username, dynamic_dns_update)

    def registration_error(self, reg_reply):
        self.re_register()

    def is_registered(self):
        try:
            if str(System.Ahenk.uid()):
                return True
            else:
                return False
        except:
            return False

    def is_ldap_registered(self):
        dn = self.db_service.select_one_result('registration', 'dn', 'registered = 1')
        if dn is not None and dn != '':
            return True
        else:
            return False

    def register(self, uuid_depend_mac=False):
        cols = ['jid', 'password', 'registered', 'params', 'timestamp']
        vals = [str(System.Os.hostname()), str(self.generate_uuid(uuid_depend_mac)), 0,
                str(self.get_registration_params()), str(datetime.datetime.now().strftime("%d-%m-%Y %I:%M"))]

        self.db_service.delete('registration', ' 1==1 ')
        self.db_service.update('registration', cols, vals)
        self.logger.debug('Registration parameters were created')

    def get_registration_params(self):
        parts = []
        for part in System.Hardware.Disk.partitions():
            parts.append(part[0])

        params = {
            'ipAddresses': str(System.Hardware.Network.ip_addresses()).replace('[', '').replace(']', ''),
            'macAddresses': str(System.Hardware.Network.mac_addresses()).replace('[', '').replace(']', ''),
            'hostname': System.Os.hostname(),
            'os.name': System.Os.name(),
            'os.version': System.Os.version(),
            'os.kernel': System.Os.kernel_release(),
            'os.distributionName': System.Os.distribution_name(),
            'os.distributionId': System.Os.distribution_id(),
            'os.distributionVersion': System.Os.distribution_version(),
            'os.architecture': System.Os.architecture(),
            'hardware.cpu.architecture': System.Hardware.Cpu.architecture(),
            'hardware.cpu.logicalCoreCount': System.Hardware.Cpu.logical_core_count(),
            'hardware.cpu.physicalCoreCount': System.Hardware.Cpu.physical_core_count(),
            'hardware.disk.total': System.Hardware.Disk.total(),
            'hardware.disk.used': System.Hardware.Disk.used(),
            'hardware.disk.free': System.Hardware.Disk.free(),
            'hardware.disk.partitions': str(parts),
            'hardware.monitors': str(System.Hardware.monitors()),
            'hardware.screens': str(System.Hardware.screens()),
            'hardware.usbDevices': str(System.Hardware.usb_devices()),
            'hardware.printers': str(System.Hardware.printers()),
            'hardware.systemDefinitions': str(System.Hardware.system_definitions()),
            'hardware.model.version': str(System.Hardware.machine_model()),
            'hardware.memory.total': System.Hardware.Memory.total(),
            'hardware.network.ipAddresses': str(System.Hardware.Network.ip_addresses()),
            'sessions.userNames': str(System.Sessions.user_name()),
            'bios.releaseDate': System.BIOS.release_date()[1].replace('\n', '') if System.BIOS.release_date()[
                                                                                       0] == 0 else 'n/a',
            'bios.version': System.BIOS.version()[1].replace('\n', '') if System.BIOS.version()[0] == 0 else 'n/a',
            'bios.vendor': System.BIOS.vendor()[1].replace('\n', '') if System.BIOS.vendor()[0] == 0 else 'n/a',
            'hardware.baseboard.manufacturer': System.Hardware.BaseBoard.manufacturer()[1].replace('\n', '') if
            System.Hardware.BaseBoard.manufacturer()[0] == 0 else 'n/a',
            'hardware.baseboard.version': System.Hardware.BaseBoard.version()[1].replace('\n', '') if
            System.Hardware.BaseBoard.version()[0] == 0 else 'n/a',
            'hardware.baseboard.assetTag': System.Hardware.BaseBoard.asset_tag()[1].replace('\n', '') if
            System.Hardware.BaseBoard.asset_tag()[0] == 0 else 'n/a',
            'hardware.baseboard.productName': System.Hardware.BaseBoard.product_name()[1].replace('\n', '') if
            System.Hardware.BaseBoard.product_name()[0] == 0 else 'n/a',
            'hardware.baseboard.serialNumber': System.Hardware.BaseBoard.serial_number()[1].replace('\n', '') if
            System.Hardware.BaseBoard.serial_number()[0] == 0 else 'n/a',
            'processor': System.Hardware.Cpu.brand(),
            'agentVersion': Util.get_agent_version(),
        }

        return json.dumps(params)

    def unregister(self):
        self.logger.debug('Ahenk is unregistering...')
        self.db_service.delete('registration', ' 1==1 ')
        self.logger.debug('Ahenk is unregistered')

    def re_register(self):
        self.logger.debug('Reregistrating...')
        self.unregister()
        self.register(False)

    def generate_uuid(self, depend_mac=True):
        if depend_mac is False:
            self.logger.debug('uuid creating randomly')
            return uuid.uuid4()  # make a random UUID
        else:
            self.logger.debug('uuid creating according to mac address')
            return uuid.uuid3(uuid.NAMESPACE_DNS,
                              str(get_mac()))  # make a UUID using an MD5 hash of a namespace UUID and a mac address

    def generate_password(self):
        return uuid.uuid4()

    def registration_timeout(self):
        self.logger.error(
            'Could not reach registration response from Lider. Be sure XMPP server is reachable and it supports anonymous message, Lider is running properly '
            'and it is connected to XMPP server! Check your Ahenk configuration file (/etc/ahenk/ahenk.conf)')
        self.logger.error('Ahenk is shutting down...')
        print('Ahenk is shutting down...')
        Util.show_message(os.getlogin(),':0',"Lider MYS sistemine ulaşılamadı. Lütfen sunucu adresini kontrol ediniz....","HATA")
        System.Process.kill_by_pid(int(System.Ahenk.get_pid_number()))

    def purge_and_unregister(self,directory_type):
        try:
            self.logger.info('Ahenk conf cleaning from db')
            self.unregister()
            self.logger.info('Ahenk conf cleaned from db')
            #directory_type = "LDAP"
            #if self.util.is_exist("/etc/ahenk/ad_info"):
            #    directory_type = "AD"
            self.logger.info('Cleaning ahenk conf..')
            self.clean()
            self.logger.info('Ahenk conf cleaned')

            if directory_type == "LDAP":
                self.logger.info('Ahenk cleaning LDAP config')
                self.ldap_login_cancel.cancel()
                self.logger.info('Ahenk cleaned LDAP config')
            elif directory_type =="ACTIVE_DIRECTORY":
                self.logger.info('Ahenk cleaning ACTIVE_DIRECTORY config')
                self.ad_login_cancel.cancel()
                self.logger.info('Ahenk cleaned ACTIVE_DIRECTORY config')

            if self.conf_manager.has_section('MACHINE'):
                user_disabled = self.conf_manager.get("MACHINE", "user_disabled")
                self.logger.info('User disabled value=' + str(user_disabled))
                if user_disabled != 'false':
                    self.logger.info('Enable Users')
                    self.enable_local_users()
                else:
                    self.logger.info('Local users already enabled')
            # İf desktop env is XFCE configured lightdm.service
            if self.util.get_desktop_env() == "xfce":
                self.logger.info('XFCE conf file deleting')
                pardus_xfce_path = "/usr/share/lightdm/lightdm.conf.d/99-pardus-xfce.conf"
                if self.util.is_exist(pardus_xfce_path):
                    self.logger.info("99-pardus-xfce.conf exists. Deleting file.")
                    self.util.delete_file(pardus_xfce_path)

                self.logger.info('XFCE conf file deleted')

            if self.util.get_desktop_env() == "gnome":
                self.logger.info('GNOME conf file deleting')
                pardus_gnome_path = "/etc/gdm3/greeter.dconf-defaults"
                if not self.util.is_exist(pardus_gnome_path):
                    self.logger.info("Gnome conf doesn't exist")

                else:
                    reading_file = open(pardus_gnome_path, "r")

                    new_file_content = ""
                    for line in reading_file:
                        stripped_line = line.strip()
                        new_line = stripped_line.replace("disable-user-list=true", "# disable-user-list=true")
                        new_file_content += new_line + "\n"
                    reading_file.close()

                    writing_file = open(pardus_gnome_path, "w")
                    writing_file.write(new_file_content)
                    writing_file.close()
                    self.logger.info("gdm.conf has been configured.")
                    self.logger.info('GNOME conf file deleted')

            self.delete_ahenk_pulseaudio_desktop_file()

            Util.shutdown()
        except Exception as e:
            self.logger.error("Error while running purge_and_unregister process.. Error Message  " + str(e))
        #System.Process.kill_by_pid(int(System.Ahenk.get_pid_number()))
        #sys.exit(2)

    def change_configs_after_purge(self):
        # pattern for clearing file data from spaces, tabs and newlines
        pattern = re.compile(r'\s+')

        ldap_back_up_file_path = "/usr/share/ahenk/pam_scripts_original/ldap"
        ldap_original_file_path = "/usr/share/pam-configs/ldap"

        pam_script_back_up_file_path = "/usr/share/ahenk/pam_scripts_original/pam_script"
        pam_script_original_file_path = "/usr/share/pam-configs/pam_script"

        if self.util.is_exist(ldap_back_up_file_path):
            self.logger.info("Replacing {0} with {1}".format(ldap_original_file_path, ldap_back_up_file_path))
            self.util.copy_file(ldap_back_up_file_path, ldap_original_file_path)
            self.logger.info("Deleting {0}".format(ldap_back_up_file_path))
            self.util.delete_file(ldap_back_up_file_path)

        if self.util.is_exist(pam_script_back_up_file_path):
            self.logger.info(
                "Replacing {0} with {1}".format(pam_script_original_file_path, pam_script_back_up_file_path))
            self.util.copy_file(pam_script_back_up_file_path, pam_script_original_file_path)
            self.logger.info("Deleting {0}".format(pam_script_back_up_file_path))
            self.util.delete_file(pam_script_back_up_file_path)

        (result_code, p_out, p_err) = self.util.execute("DEBIAN_FRONTEND=noninteractive pam-auth-update --package")
        if result_code == 0:
            self.logger.info("'DEBIAN_FRONTEND=noninteractive pam-auth-update --package' has run successfully")
        else:
            self.logger.error(
                "'DEBIAN_FRONTEND=noninteractive pam-auth-update --package' could not run successfully: " + p_err)

        # Configure nsswitch.conf
        file_ns_switch = open("/etc/nsswitch.conf", 'r')
        file_data = file_ns_switch.read()

        # cleared file data from spaces, tabs and newlines
        text = pattern.sub('', file_data)

        did_configuration_change = False
        if "passwd:compatldap[NOTFOUND=return]db" in text:
            file_data = file_data.replace("passwd:         compat ldap [NOTFOUND=return] db", "passwd:         compat")
            did_configuration_change = True

        if "group:compatldap[NOTFOUND=return]db" in text:
            file_data = file_data.replace("group:          compat ldap [NOTFOUND=return] db", "group:          compat")
            did_configuration_change = True

        if "shadow:compatldap" in text:
            file_data = file_data.replace("shadow:         compat ldap", "shadow:         compat")
            did_configuration_change = True

        if "#gshadow:files" in text:
            file_data = file_data.replace("#gshadow:        files", "gshadow:        files")
            did_configuration_change = True

        if did_configuration_change:
            self.logger.info("nsswitch.conf configuration has been configured")
        else:
            self.logger.info("nsswitch.conf has already been configured")

        file_ns_switch.close()
        file_ns_switch = open("/etc/nsswitch.conf", 'w')
        file_ns_switch.write(file_data)
        file_ns_switch.close()

        # Configure ldap-cache
        nss_update_cron_job_file_path = "/etc/cron.daily/nss-updatedb"
        if self.util.is_exist(nss_update_cron_job_file_path):
            self.util.delete_file(nss_update_cron_job_file_path)
            self.logger.info("{0} is deleted.".format(nss_update_cron_job_file_path))

        # Configure lightdm.service
        pardus_xfce_path = "/usr/share/lightdm/lightdm.conf.d/99-pardus-xfce.conf"
        if self.util.is_exist(pardus_xfce_path):
            self.logger.info("99-pardus-xfce.conf exists. Deleting file.")
            self.util.delete_file(pardus_xfce_path)

        self.util.execute("systemctl restart nscd.service")
        self.logger.info("Operation finished")

    def clean(self):
        print('Ahenk cleaning..')
        import configparser
        try:
            config = configparser.ConfigParser()
            config._interpolation = configparser.ExtendedInterpolation()
            config.read(System.Ahenk.config_path())
            db_path = config.get('BASE', 'dbPath')

            if Util.is_exist(System.Ahenk.fifo_file()):
                Util.delete_file(System.Ahenk.fifo_file())

            if Util.is_exist(db_path):
                Util.delete_file(db_path)

            if Util.is_exist(System.Ahenk.pid_path()):
                Util.delete_file(System.Ahenk.pid_path())

            config.set('CONNECTION', 'uid', '')
            config.set('CONNECTION', 'password', '')
            config.set('CONNECTION', 'host', '')
            config.set('MACHINE', 'user_disabled', 'false')

            with open(System.Ahenk.config_path(), 'w') as file:
                config.write(file)
            file.close()
            print('Ahenk cleaned.')
        except Exception as e:
            self.logger.error("Error while running clean command. Error Message  " + str(e))
            print('Error while running clean command. Error Message {0}'.format(str(e)))

    def enable_local_users(self):
        passwd_cmd = 'passwd -u {}'
        change_home = 'usermod -m -d {0} {1}'
        change_username = 'usermod -l {0} {1}'
        content = self.util.read_file('/etc/passwd')
        for p in pwd.getpwall():
            if not sysx.shell_is_interactive(p.pw_shell):
                continue
            if p.pw_uid == 0:
                continue
            if p.pw_name in content:
                new_home_dir = p.pw_dir.rstrip('-local/') + '/'
                new_username = p.pw_name.rstrip('-local')
                self.util.execute(passwd_cmd.format(p.pw_name))
                self.util.execute(change_username.format(new_username, p.pw_name))
                self.util.execute(change_home.format(new_home_dir, new_username))
                self.logger.debug("User: '{0}' will be enabled and changed username and home directory of username".format(p.pw_name))


    def disable_local_users(self):
        passwd_cmd = 'passwd -l {}'
        change_home = 'usermod -m -d {0} {1}'
        change_username = 'usermod -l {0} {1}'
        content = Util.read_file('/etc/passwd')
        kill_all_process = 'killall -KILL -u {}'
        change_permisson = "chmod -R 700 {}"

        for p in pwd.getpwall():
            self.logger.info("User: '{0}' will be disabled and changed username and home directory of username".format(p.pw_name))
            if not sysx.shell_is_interactive(p.pw_shell):
                continue
            if p.pw_uid == 0:
                continue
            if p.pw_name in content:
                new_home_dir = p.pw_dir.rstrip('/') + '-local/'
                new_username = p.pw_name+'-local'
                Util.execute(kill_all_process.format(p.pw_name))
                Util.execute(passwd_cmd.format(p.pw_name))
                Util.execute(change_username.format(new_username, p.pw_name))
                Util.execute(change_home.format(new_home_dir, new_username))
                Util.execute(change_permisson.format(new_home_dir))

    def change_permissions_for_local_users(self):
        if self.disable_local_users is False:
            content = Util.read_file('/etc/passwd')
            change_permisson = "chmod -R 700 {}"
            for p in pwd.getpwall():
                self.logger.info(
                    "User: '{0}' will change home directory of username".format(p.pw_name))
                if not sysx.shell_is_interactive(p.pw_shell):
                    continue
                if p.pw_uid == 0:
                    continue
                if p.pw_name in content:
                    Util.execute(change_permisson.format(p.pw_dir))

        add_user_conf_file = "/etc/adduser.conf"
        file_dir_mode = open(add_user_conf_file, 'r')
        file_data = file_dir_mode.read()
        file_data = file_data.replace("DIR_MODE=0755", "DIR_MODE=0700")
        file_dir_mode.close()

        file_dir_mode = open(add_user_conf_file, 'w')
        file_dir_mode.write(file_data)
        file_dir_mode.close()
        self.logger.info("add user mode changed to 0700 in file {}".format(add_user_conf_file))

    def configure_lightdm(self):
        # check if 99-pardus-xfce.conf exists if not create
        pardus_xfce_path = "/usr/share/lightdm/lightdm.conf.d/99-pardus-xfce.conf"
        if not self.util.is_exist(pardus_xfce_path):
            self.logger.info("99-pardus-xfce.conf does not exist.")
            self.util.create_file(pardus_xfce_path)
            file_lightdm = open(pardus_xfce_path, 'a')
            file_lightdm.write("[Seat:*]\n")
            file_lightdm.write("greeter-hide-users=true")
            file_lightdm.close()
            self.logger.info("lightdm has been configured.")
        else:
            self.logger.info("99-pardus-xfce.conf exists. Delete file and create new one.")
            self.util.delete_file(pardus_xfce_path)
            self.util.create_file(pardus_xfce_path)

            file_lightdm = open(pardus_xfce_path, 'a')
            file_lightdm.write("[Seat:*]\n")
            file_lightdm.write("greeter-hide-users=true")
            file_lightdm.close()
            self.logger.info("lightdm.conf has been configured.")

    def configure_gdm(self):
        pardus_gnome_path = "/etc/gdm3/greeter.dconf-defaults"
        if not self.util.is_exist(pardus_gnome_path):
            self.logger.info("Gnome conf doesn't exist")
        else:
            reading_file = open(pardus_gnome_path, "r")
            new_file_content = ""
            for line in reading_file:
                stripped_line = line.strip()
                new_line = stripped_line.replace("# disable-user-list=true", "disable-user-list=true")
                new_file_content += new_line + "\n"
            reading_file.close()
            writing_file = open(pardus_gnome_path, "w")
            writing_file.write(new_file_content)
            writing_file.close()
            self.logger.info("gdm.conf has been configured.")

    def create_ahenk_pulseaudio_desktop_file(self):
        ahenkpulseaudio = "/etc/xdg/autostart/ahenk.pulseaudio.desktop"
        ahenkpulseaudio_template = "/usr/share/ahenk/base/registration/config-files/ahenk.pulseaudio.desktop"
        if not self.util.is_exist(ahenkpulseaudio):
            self.logger.info("ahenk.pulseaudio.desktop autostart file doesn't exist")
            self.util.create_file(ahenkpulseaudio)
            file_ahenkpulseaudio = open(ahenkpulseaudio, 'a')
            self.util.copy_file(ahenkpulseaudio_template, ahenkpulseaudio)
            file_ahenkpulseaudio.close()
            self.logger.info("ahenk.pulseaudio.desktop has been configured.")
        else:
            self.logger.info("ahenk.pulseaudio.desktop autostart file exist")

    def delete_ahenk_pulseaudio_desktop_file(self):
        ahenkpulseaudio = "/etc/xdg/autostart/ahenk.pulseaudio.desktop"
        if self.util.is_exist(ahenkpulseaudio):
            self.util.delete_file(ahenkpulseaudio)
            self.logger.info("ahenk.pulseaudio.desktop autostart file deleted")
        else:
            self.logger.info("ahenk.pulseaudio.desktop autostart file doesn't exist")