WPIQ/wo/cli/plugins/stack.py

"""Stack Plugin for WordOps"""

import os

from cement.core.controller import CementBaseController, expose

from wo.cli.plugins.stack_migrate import WOStackMigrateController
from wo.cli.plugins.stack_pref import post_pref, pre_pref, pre_stack
from wo.cli.plugins.stack_services import WOStackStatusController
from wo.cli.plugins.stack_upgrade import WOStackUpgradeController
from wo.core.aptget import WOAptGet
from wo.core.download import WODownload
from wo.core.fileutils import WOFileUtils
from wo.core.logging import Log
from wo.core.mysql import WOMysql
from wo.core.services import WOService
from wo.core.shellexec import WOShellExec
from wo.core.variables import WOVar


def wo_stack_hook(app):
    pass


class WOStackController(CementBaseController):
    class Meta:
        label = 'stack'
        stacked_on = 'base'
        stacked_type = 'nested'
        description = 'Stack command manages stack operations'
        arguments = [
            (['--all'],
                dict(help='Install all stacks at once', action='store_true')),
            (['--web'],
                dict(help='Install web stack', action='store_true')),
            (['--admin'],
                dict(help='Install admin tools stack', action='store_true')),
            (['--security'],
             dict(help='Install security tools stack', action='store_true')),
            (['--nginx'],
                dict(help='Install Nginx stack', action='store_true')),
            (['--php'],
                dict(help='Install PHP 7.2 stack', action='store_true')),
            (['--php73'],
                dict(help='Install PHP 7.3 stack', action='store_true')),
            (['--mysql'],
                dict(help='Install MySQL stack', action='store_true')),
            (['--mysqlclient'],
                dict(help='Install MySQL client for remote MySQL server',
                     action='store_true')),
            (['--mysqltuner'],
                dict(help='Install MySQLTuner stack', action='store_true')),
            (['--wpcli'],
                dict(help='Install WPCLI stack', action='store_true')),
            (['--phpmyadmin'],
                dict(help='Install PHPMyAdmin stack', action='store_true')),
            (['--composer'],
                dict(help='Install Composer stack', action='store_true')),
            (['--netdata'],
                dict(help='Install Netdata monitoring suite',
                     action='store_true')),
            (['--dashboard'],
                dict(help='Install WordOps dashboard', action='store_true')),
            (['--extplorer'],
                dict(help='Install eXtplorer file manager',
                     action='store_true')),
            (['--adminer'],
                dict(help='Install Adminer stack', action='store_true')),
            (['--fail2ban'],
                dict(help='Install Fail2ban stack', action='store_true')),
            (['--clamav'],
                dict(help='Install ClamAV stack', action='store_true')),
            (['--ufw'],
                dict(help='Install UFW stack', action='store_true')),
            (['--sendmail'],
                dict(help='Install Sendmail stack', action='store_true')),
            (['--utils'],
                dict(help='Install Utils stack', action='store_true')),
            (['--redis'],
                dict(help='Install Redis', action='store_true')),
            (['--phpredisadmin'],
                dict(help='Install phpRedisAdmin', action='store_true')),
            (['--proftpd'],
                dict(help='Install ProFTPd', action='store_true')),
            (['--ngxblocker'],
                dict(help='Install Nginx Ultimate Bad Bot Blocker',
                     action='store_true')),
            (['--cheat'],
                dict(help='Install cheat.sh', action='store_true')),
            (['--nanorc'],
                dict(help='Install nanorc syntax highlightning',
                     action='store_true')),
            (['--force'],
                dict(help='Force install/remove/purge without prompt',
                     action='store_true')),
        ]
        usage = "wo stack (command) [options]"

    @expose(hide=True)
    def default(self):
        """default action of wo stack command"""
        self.app.args.print_help()

    @expose(help="Install packages")
    def install(self, packages=[], apt_packages=[], disp_msg=True):
        """Start installation of packages"""
        self.msg = []
        empty_packages = []
        wo_webroot = "/var/www/"
        pargs = self.app.pargs

        try:
            # Default action for stack installation
            if ((not pargs.web) and (not pargs.admin) and
                (not pargs.nginx) and (not pargs.php) and
                (not pargs.mysql) and (not pargs.wpcli) and
                (not pargs.phpmyadmin) and (not pargs.composer) and
                (not pargs.netdata) and (not pargs.dashboard) and
                (not pargs.fail2ban) and (not pargs.security) and
                (not pargs.mysqlclient) and (not pargs.mysqltuner) and
                (not pargs.adminer) and (not pargs.utils) and
                (not pargs.redis) and (not pargs.proftpd) and
                (not pargs.extplorer) and (not pargs.clamav) and
                (not pargs.cheat) and (not pargs.nanorc) and
                (not pargs.ufw) and (not pargs.ngxblocker) and
                (not pargs.phpredisadmin) and (not pargs.sendmail) and
                    (not pargs.php73)):
                pargs.web = True
                pargs.admin = True
                pargs.fail2ban = True

            if pargs.all:
                pargs.web = True
                pargs.admin = True
                pargs.php73 = True
                pargs.redis = True
                pargs.proftpd = True

            if pargs.web:
                pargs.nginx = True
                pargs.php = True
                pargs.mysql = True
                pargs.wpcli = True
                pargs.sendmail = True

            if pargs.admin:
                pargs.web = True
                pargs.adminer = True
                pargs.phpmyadmin = True
                pargs.composer = True
                pargs.utils = True
                pargs.netdata = True
                pargs.dashboard = True
                pargs.phpredisadmin = True
                pargs.extplorer = True
                pargs.cheat = True

            if pargs.security:
                pargs.fail2ban = True
                pargs.clamav = True
                pargs.ngxblocker = True

            # Nginx
            if pargs.nginx:
                Log.debug(self, "Setting apt_packages variable for Nginx")
                if not (WOAptGet.is_installed(self, 'nginx-custom')):
                    if not (WOAptGet.is_installed(self, 'nginx-plus') or
                            WOAptGet.is_installed(self, 'nginx')):
                        if not os.path.isfile('/usr/sbin/nginx'):
                            apt_packages = apt_packages + WOVar.wo_nginx
                    else:
                        if WOAptGet.is_installed(self, 'nginx-plus'):
                            Log.info(self, "NGINX PLUS Detected ...")
                            apt = ["nginx-plus"] + WOVar.wo_nginx
                            post_pref(self, apt, empty_packages)
                        elif WOAptGet.is_installed(self, 'nginx'):
                            Log.info(self, "WordOps detected an already "
                                     "installed nginx package."
                                     "It may or may not have "
                                     "required modules.\n")
                            apt = ["nginx"] + WOVar.wo_nginx
                            post_pref(self, apt, empty_packages)
                else:
                    Log.debug(self, "Nginx already installed")

            # Redis
            if pargs.redis:
                if not WOAptGet.is_installed(self, 'redis-server'):
                    apt_packages = apt_packages + WOVar.wo_redis

                else:
                    Log.info(self, "Redis already installed")

            # PHP 7.2
            if pargs.php:
                Log.debug(self, "Setting apt_packages variable for PHP 7.2")
                if not (WOAptGet.is_installed(self, 'php7.2-fpm')):
                    apt_packages = (apt_packages + WOVar.wo_php +
                                    WOVar.wo_php_extra)
                else:
                    Log.debug(self, "PHP 7.2 already installed")
                    Log.info(self, "PHP 7.2 already installed")

            # PHP 7.3
            if pargs.php73:
                Log.debug(self, "Setting apt_packages variable for PHP 7.3")
                if not WOAptGet.is_installed(self, 'php7.3-fpm'):
                    apt_packages = (apt_packages + WOVar.wo_php +
                                    WOVar.wo_php73 +
                                    WOVar.wo_php_extra)
                else:
                    Log.debug(self, "PHP 7.3 already installed")
                    Log.info(self, "PHP 7.3 already installed")

            # MariaDB 10.3
            if pargs.mysql:
                pargs.mysqltuner = True
                Log.debug(self, "Setting apt_packages variable for MySQL")
                if not WOShellExec.cmd_exec(self, "mysqladmin ping"):
                    apt_packages = apt_packages + WOVar.wo_mysql
                else:
                    Log.debug(self, "MySQL already installed and alive")
                    Log.info(self, "MySQL already installed and alive")

            # mysqlclient
            if pargs.mysqlclient:
                Log.debug(self, "Setting apt_packages variable "
                          "for MySQL Client")
                if not WOShellExec.cmd_exec(self, "mysqladmin ping"):
                    apt_packages = apt_packages + WOVar.wo_mysql_client
                else:
                    Log.debug(self, "MySQL already installed and alive")
                    Log.info(self, "MySQL already installed and alive")

            # WP-CLI
            if pargs.wpcli:
                Log.debug(self, "Setting packages variable for WP-CLI")
                if ((not os.path.isfile("/usr/local/bin/wp")) and
                        (not os.path.isfile("/usr/bin/wp"))):
                    packages = packages + [["https://github.com/wp-cli/wp-cli/"
                                            "releases/download/v{0}/"
                                            "wp-cli-{0}.phar"
                                            "".format(WOVar.wo_wp_cli),
                                            "/usr/local/bin/wp",
                                            "WP-CLI"]]
                else:
                    Log.debug(self, "WP-CLI is already installed")
                    Log.info(self, "WP-CLI is already installed")

            # fail2ban
            if pargs.fail2ban:
                Log.debug(self, "Setting apt_packages variable for Fail2ban")
                if not WOAptGet.is_installed(self, 'fail2ban'):
                    apt_packages = apt_packages + WOVar.wo_fail2ban
                else:
                    Log.debug(self, "Fail2ban already installed")
                    Log.info(self, "Fail2ban already installed")

            # ClamAV
            if pargs.clamav:
                Log.debug(self, "Setting apt_packages variable for ClamAV")
                if not WOAptGet.is_installed(self, 'clamav'):
                    apt_packages = apt_packages + WOVar.wo_clamav
                else:
                    Log.debug(self, "ClamAV already installed")
                    Log.info(self, "ClamAV already installed")

            # UFW
            if pargs.ufw:
                Log.debug(self, "Setting apt_packages variable for UFW")
                apt_packages = apt_packages + ["ufw"]

            # sendmail
            if pargs.sendmail:
                Log.debug(self, "Setting apt_packages variable for Sendmail")
                if (not WOAptGet.is_installed(self, 'sendmail') and
                        not WOAptGet.is_installed(self, 'postfix')):
                    apt_packages = apt_packages + ["sendmail"]
                else:
                    if WOAptGet.is_installed(self, 'sendmail'):
                        Log.debug(self, "Sendmail already installed")
                        Log.info(self, "Sendmail already installed")
                    else:
                        Log.debug(
                            self, "Another mta (Postfix) is already installed")
                        Log.info(
                            self, "Another mta (Postfix) is already installed")

            # proftpd
            if pargs.proftpd:
                Log.debug(self, "Setting apt_packages variable for ProFTPd")
                if not WOAptGet.is_installed(self, 'proftpd-basic'):
                    apt_packages = apt_packages + ["proftpd-basic"]
                else:
                    Log.debug(self, "ProFTPd already installed")
                    Log.info(self, "ProFTPd already installed")

            # PHPMYADMIN
            if pargs.phpmyadmin:
                pargs.composer = True
                if not os.path.isdir('/var/www/22222/htdocs/db/pma'):
                    Log.debug(self, "Setting packages variable "
                              "for phpMyAdmin ")
                    packages = packages + [["https://github.com/phpmyadmin/"
                                            "phpmyadmin/archive/STABLE.tar.gz",
                                            "/var/lib/wo/tmp/pma.tar.gz",
                                            "phpMyAdmin"]]
                else:
                    Log.debug(self, "phpMyAdmin already installed")
                    Log.info(self, "phpMyAdmin already installed")

                    # PHPREDISADMIN
            if pargs.phpredisadmin:
                pargs.composer = True
                if not os.path.isdir('/var/www/22222/htdocs/'
                                     'cache/redis/phpRedisAdmin'):
                    Log.debug(
                        self, "Setting packages variable for phpRedisAdmin")
                    packages = packages + [["https://github.com/"
                                            "erikdubbelboer/"
                                            "phpRedisAdmin/archive"
                                            "/v1.11.3.tar.gz",
                                            "/var/lib/wo/tmp/pra.tar.gz",
                                            "phpRedisAdmin"]]
                else:
                    Log.debug(self, "phpRedisAdmin already installed")
                    Log.info(self, "phpRedisAdmin already installed")

            # Composer
            if pargs.composer:
                if ((not WOAptGet.is_installed(self, 'php7.2-fpm')) and
                        (not WOAptGet.is_installed(self, 'php7.3-fpm'))):
                    pargs.php = True
                if not os.path.isfile('/usr/local/bin/composer'):
                    Log.debug(self, "Setting packages variable for Composer ")
                    packages = packages + [["https://getcomposer.org/"
                                            "installer",
                                            "/var/lib/wo/tmp/composer-install",
                                            "Composer"]]
                else:
                    Log.debug(self, "Composer already installed")
                    Log.info(self, "Composer already installed")

            # ADMINER
            if pargs.adminer:
                if not os.path.isfile("{0}22222/htdocs/db/"
                                      "adminer/index.php"
                                      .format(wo_webroot)):
                    Log.debug(self, "Setting packages variable for Adminer ")
                    packages = packages + [[
                        "https://github.com/vrana/adminer/"
                        "releases/download/v{0}"
                        "/adminer-{0}.php"
                        .format(WOVar.wo_adminer),
                        "{0}22222/"
                        "htdocs/db/adminer/index.php"
                        .format(WOVar.wo_webroot),
                        "Adminer"],
                        ["https://raw.githubusercontent.com"
                         "/vrana/adminer/master/designs/"
                         "pepa-linha/adminer.css",
                         "{0}22222/"
                         "htdocs/db/adminer/adminer.css"
                         .format(WOVar.wo_webroot),
                         "Adminer theme"]]
                else:
                    Log.debug(self, "Adminer already installed")
                    Log.info(self, "Adminer already installed")

            # mysqltuner
            if pargs.mysqltuner:
                if not os.path.isfile("/usr/bin/mysqltuner"):
                    Log.debug(self, "Setting packages variable "
                              "for MySQLTuner ")
                    packages = packages + [["https://raw."
                                            "githubusercontent.com/"
                                            "major/MySQLTuner-perl"
                                            "/master/mysqltuner.pl",
                                            "/usr/bin/mysqltuner",
                                            "MySQLTuner"]]
                else:
                    Log.debug(self, "MySQLtuner already installed")
                    Log.info(self, "MySQLtuner already installed")

            # Netdata
            if pargs.netdata:
                if (not os.path.isdir('/opt/netdata') and not
                        os.path.isdir("/etc/netdata")):
                    Log.debug(
                        self, "Setting packages variable for Netdata")
                    if WOVar.wo_distro == 'raspbian':
                        packages = packages + [['https://my-netdata.io/'
                                                'kickstart.sh',
                                                '/var/lib/wo/tmp/kickstart.sh',
                                                'Netdata']]
                    else:
                        packages = packages + [['https://my-netdata.io/'
                                                'kickstart-static64.sh',
                                                '/var/lib/wo/tmp/kickstart.sh',
                                                'Netdata']]
                else:
                    Log.debug(self, "Netdata already installed")
                    Log.info(self, "Netdata already installed")

            # WordOps Dashboard
            if pargs.dashboard:
                if not os.path.isfile('/var/www/22222/htdocs/index.php'):
                    Log.debug(self,
                              "Setting packages variable for WO-Dashboard")
                    packages = packages + [[
                        "https://github.com/WordOps"
                        "/wordops-dashboard/"
                        "releases/download/v{0}/"
                        "wordops-dashboard.tar.gz"
                        .format(WOVar.wo_dashboard),
                        "/var/lib/wo/tmp/wo-dashboard.tar.gz",
                        "WordOps Dashboard"]]
                else:
                    Log.debug(self, "WordOps dashboard already installed")
                    Log.info(self, "WordOps dashboard already installed")

            # eXtplorer
            if pargs.extplorer:
                if not os.path.isdir('/var/www/22222/htdocs/files'):
                    Log.debug(self, "Setting packages variable for eXtplorer")
                    packages = packages + \
                        [["https://github.com/soerennb/"
                          "extplorer/archive/v{0}.tar.gz"
                          .format(WOVar.wo_extplorer),
                          "/var/lib/wo/tmp/extplorer.tar.gz",
                          "eXtplorer"]]
                else:
                    Log.debug(self, "eXtplorer is already installed")
                    Log.info(self, "eXtplorer is already installed")

            # ultimate ngx_blocker
            if pargs.ngxblocker:
                if not os.path.isdir('/etc/nginx/bots.d'):
                    Log.debug(self, "Setting packages variable for ngxblocker")
                    packages = packages + \
                        [["https://raw.githubusercontent.com/"
                          "mitchellkrogza/nginx-ultimate-bad-bot-blocker"
                          "/master/install-ngxblocker",
                          "/usr/local/sbin/install-ngxblocker",
                          "ngxblocker"]]
                else:
                    Log.debug(self, "ngxblocker is already installed")
                    Log.info(self, "ngxblocker is already installed")

            # cheat.sh
            if pargs.cheat:
                if ((not os.path.exists('/usr/local/bin/cht.sh')) and
                        (not os.path.exists('/usr/bin/cht.sh'))):
                    Log.debug(self, 'Setting packages variable for cheat.sh')
                    packages = packages + [[
                        "https://raw.githubusercontent.com/chubin/cheat.sh"
                        "/master/share/cht.sh.txt",
                        "/usr/local/bin/cht.sh",
                        "cheat.sh"],
                        ["https://raw.githubusercontent.com/chubin/cheat.sh"
                         "/master/share/bash_completion.txt",
                         "/etc/bash_completion.d/cht.sh",
                         "bash_completion"]]

            if pargs.nanorc:
                if not os.path.exists('/usr/share/nano-syntax-highlighting'):
                    Log.debug(self, "Setting packages variable for nanorc")
                    apt_packages = apt_packages + ['nano']
                    packages = [
                        ['https://github.com/scopatz/nanorc/archive/master.tar.gz',
                         '/var/lib/wo/tmp/nanorc.tar.gz',
                         'nanorc']]


            # UTILS
            if pargs.utils:
                Log.debug(self, "Setting packages variable for utils")
                packages = packages + [[
                    "https://raw.githubusercontent.com"
                    "/rtCamp/eeadmin/master/cache/nginx/"
                    "clean.php",
                    "{0}22222/htdocs/cache/"
                    "nginx/clean.php"
                    .format(WOVar.wo_webroot),
                    "clean.php"],
                    ["https://raw.github.com/rlerdorf/"
                     "opcache-status/master/opcache.php",
                     "{0}22222/htdocs/cache/"
                     "opcache/opcache.php"
                     .format(WOVar.wo_webroot),
                     "opcache.php"],
                    ["https://raw.github.com/amnuts/"
                     "opcache-gui/master/index.php",
                     "{0}22222/htdocs/"
                     "cache/opcache/opgui.php"
                     .format(WOVar.wo_webroot),
                     "Opgui"],
                    ["https://raw.githubusercontent.com/"
                     "mlazarov/ocp/master/ocp.php",
                     "{0}22222/htdocs/cache/"
                     "opcache/ocp.php"
                     .format(WOVar.wo_webroot),
                     "OCP.php"],
                    ["https://github.com/jokkedk/webgrind/"
                     "archive/master.tar.gz",
                     '/var/lib/wo/tmp/webgrind.tar.gz',
                     'Webgrind'],
                    ["https://www.percona.com/"
                     "get/pt-query-digest",
                     "/usr/bin/pt-query-advisor",
                     "pt-query-advisor"],
                    ["https://github.com/box/Anemometer/"
                     "archive/master.tar.gz",
                     '/var/lib/wo/tmp/anemometer.tar.gz',
                     'Anemometer']]

        except Exception as e:
            Log.debug(self, "{0}".format(e))

        if (apt_packages) or (packages):
            pre_stack(self)
            if (apt_packages):
                Log.debug(self, "Calling pre_pref")
                pre_pref(self, apt_packages)
                # meminfo = (os.popen('/bin/cat /proc/meminfo '
                #                    '| grep MemTotal').read()).split(":")
                # memsplit = re.split(" kB", meminfo[1])
                # wo_mem = int(memsplit[0])
                # if (wo_mem < 4000000):
                #    WOSwap.add(self)
                Log.wait(self, "Updating apt-cache          ")
                WOAptGet.update(self)
                Log.valide(self, "Updating apt-cache          ")
                Log.wait(self, "Installing APT packages     ")
                WOAptGet.install(self, apt_packages)
                Log.valide(self, "Installing APT packages     ")
                Log.wait(self, "Configuring APT packages    ")
                post_pref(self, apt_packages, [])
                Log.valide(self, "Configuring APT packages    ")
            if (packages):
                Log.debug(self, "Downloading following: {0}".format(packages))
                WODownload.download(self, packages)
                Log.debug(self, "Calling post_pref")
                Log.wait(self, "Configuring packages")
                post_pref(self, [], packages)
                Log.valide(self, "Configuring packages")

            if disp_msg:
                if (self.msg):
                    for msg in self.msg:
                        Log.info(self, Log.ENDC + msg)
                Log.info(self, "Successfully installed packages")
            else:
                return self.msg
        return 0

    @expose(help="Remove packages")
    def remove(self):
        """Start removal of packages"""
        apt_packages = []
        packages = []
        pargs = self.app.pargs
        if ((not pargs.web) and (not pargs.admin) and
            (not pargs.nginx) and (not pargs.php) and
            (not pargs.mysql) and (not pargs.wpcli) and
            (not pargs.phpmyadmin) and (not pargs.composer) and
                (not pargs.netdata) and (not pargs.dashboard) and
                (not pargs.fail2ban) and (not pargs.security) and
                (not pargs.mysqlclient) and (not pargs.mysqltuner) and
                (not pargs.adminer) and (not pargs.utils) and
                (not pargs.redis) and (not pargs.proftpd) and
                (not pargs.extplorer) and (not pargs.clamav) and
                (not pargs.cheat) and (not pargs.nanorc) and
                (not pargs.ufw) and (not pargs.ngxblocker) and
                (not pargs.phpredisadmin) and (not pargs.sendmail) and
                (not pargs.php73)):
            pargs.web = True
            pargs.admin = True

        if pargs.all:
            pargs.web = True
            pargs.admin = True
            pargs.php73 = True
            pargs.fail2ban = True
            pargs.proftpd = True
            pargs.utils = True
            pargs.redis = True
            pargs.security = True
            pargs.nanorc = True
            packages = packages + ['/var/www/22222/htdocs']

        if pargs.web:
            pargs.nginx = True
            pargs.php = True
            pargs.mysql = True
            pargs.wpcli = True
            pargs.sendmail = True

        if pargs.admin:
            pargs.composer = True
            pargs.utils = True
            pargs.netdata = True
            pargs.mysqltuner = True
            pargs.cheat = True

        if pargs.security:
            pargs.fail2ban = True
            pargs.clamav = True
            pargs.ufw = True
            pargs.ngxblocker = True

        # NGINX
        if pargs.nginx:
            if WOAptGet.is_installed(self, 'nginx-custom'):
                Log.debug(self, "Removing apt_packages variable of Nginx")
                apt_packages = apt_packages + WOVar.wo_nginx

        # PHP 7.2
        if pargs.php:
            Log.debug(self, "Removing apt_packages variable of PHP")
            if WOAptGet.is_installed(self, 'php7.2-fpm'):
                if not WOAptGet.is_installed(self, 'php7.3-fpm'):
                    apt_packages = apt_packages + WOVar.wo_php + \
                        WOVar.wo_php_extra
                else:
                    apt_packages = apt_packages + WOVar.wo_php

        # PHP7.3
        if pargs.php73:
            Log.debug(self, "Removing apt_packages variable of PHP 7.3")
            if WOAptGet.is_installed(self, 'php7.3-fpm'):
                if not (WOAptGet.is_installed(self, 'php7.2-fpm')):
                    apt_packages = apt_packages + WOVar.wo_php73 + \
                        WOVar.wo_php_extra
                else:
                    apt_packages = apt_packages + WOVar.wo_php73

        # REDIS
        if pargs.redis:
            if WOAptGet.is_installed(self, 'redis-server'):
                Log.debug(self, "Remove apt_packages variable of Redis")
                apt_packages = apt_packages + ["redis-server"]

        # MariaDB
        if pargs.mysql:
            if WOAptGet.is_installed(self, 'mariadb-server'):
                Log.debug(self, "Removing apt_packages variable of MySQL")
                apt_packages = apt_packages + ['mariadb-server',
                                               'mysql-common',
                                               'mariadb-client']

        # mysqlclient
        if pargs.mysqlclient:
            Log.debug(self, "Removing apt_packages variable "
                      "for MySQL Client")
            if WOShellExec.cmd_exec(self, "mysqladmin ping"):
                apt_packages = apt_packages + WOVar.wo_mysql_client

        # fail2ban
        if pargs.fail2ban:
            if WOAptGet.is_installed(self, 'fail2ban'):
                Log.debug(self, "Remove apt_packages variable of Fail2ban")
                apt_packages = apt_packages + WOVar.wo_fail2ban

        # ClamAV
        if pargs.clamav:
            Log.debug(self, "Setting apt_packages variable for ClamAV")
            if WOAptGet.is_installed(self, 'clamav'):
                apt_packages = apt_packages + WOVar.wo_clamav

        # sendmail
        if pargs.sendmail:
            Log.debug(self, "Setting apt_packages variable for Sendmail")
            if WOAptGet.is_installed(self, 'sendmail'):
                apt_packages = apt_packages + ["sendmail"]

        # proftpd
        if pargs.proftpd:
            if WOAptGet.is_installed(self, 'proftpd-basic'):
                Log.debug(self, "Remove apt_packages variable for ProFTPd")
                apt_packages = apt_packages + ["proftpd-basic"]

        # UFW
        if pargs.ufw:
            if WOAptGet.is_installed(self, 'ufw'):
                Log.debug(self, "Remove apt_packages variable for UFW")
                apt_packages = apt_packages + ["ufw"]

        # WPCLI
        if pargs.wpcli:
            Log.debug(self, "Removing package variable of WPCLI ")
            if os.path.isfile('/usr/local/bin/wp'):
                packages = packages + ['/usr/local/bin/wp']

        # PHPMYADMIN
        if pargs.phpmyadmin:
            if os.path.isdir('{0}22222/htdocs/db/pma'
                             .format(WOVar.wo_webroot)):
                Log.debug(self, "Removing package of phpMyAdmin ")
                packages = packages + ['{0}22222/htdocs/db/pma'
                                       .format(WOVar.wo_webroot)]
        # Composer
        if pargs.composer:
            Log.debug(self, "Removing package of Composer ")
            if os.path.isfile('/usr/local/bin/composer'):
                packages = packages + ['/usr/local/bin/composer']

        # MySQLTuner
        if pargs.mysqltuner:
            if os.path.isfile('/usr/bin/mysqltuner'):
                Log.debug(self, "Removing packages for MySQLTuner ")
                packages = packages + ['/usr/bin/mysqltuner']

        # cheat.sh
        if pargs.cheat:
            if os.path.isfile('/usr/local/bin/cht.sh'):
                Log.debug(self, "Removing packages for cheat.sh ")
                packages = packages + [
                    '/usr/local/bin/cht.sh', '/usr/local/bin/cheat',
                    '/etc/bash_completion.d/cht.sh']

        # PHPREDISADMIN
        if pargs.phpredisadmin:
            Log.debug(self, "Removing package variable of phpRedisAdmin ")
            if os.path.isdir('{0}22222/htdocs/cache/redis'
                             .format(WOVar.wo_webroot)):
                packages = packages + ['{0}22222/htdocs/'
                                       'cache/redis'
                                       .format(WOVar.wo_webroot)]
        # ADMINER
        if pargs.adminer:
            if os.path.isdir('{0}22222/htdocs/db/adminer'
                             .format(WOVar.wo_webroot)):
                Log.debug(self, "Removing package variable of Adminer ")
                packages = packages + ['{0}22222/htdocs/db/adminer'
                                       .format(WOVar.wo_webroot)]
        if pargs.utils:
            Log.debug(self, "Removing package variable of utils ")
            packages = packages + ['{0}22222/htdocs/php/webgrind/'
                                   .format(WOVar.wo_webroot),
                                   '{0}22222/htdocs/cache/opcache'
                                   .format(WOVar.wo_webroot),
                                   '{0}22222/htdocs/cache/nginx/'
                                   'clean.php'.format(WOVar.wo_webroot),
                                   '/usr/bin/pt-query-advisor',
                                   '{0}22222/htdocs/db/anemometer'
                                   .format(WOVar.wo_webroot)]

        # netdata
        if pargs.netdata:
            Log.debug(self, "Removing Netdata")
            if os.path.isfile('/opt/netdata/usr/'
                              'libexec/netdata/netdata-uninstaller.sh'):
                packages = packages + ['/var/lib/wo/tmp/kickstart.sh']

        # wordops dashboard
        if pargs.dashboard:
            if (os.path.isfile('{0}22222/htdocs/index.php'
                               .format(WOVar.wo_webroot)) or
                    os.path.isfile('{0}22222/htdocs/index.html'
                                   .format(WOVar.wo_webroot))):
                Log.debug(self, "Removing Wo-Dashboard")
                packages = packages + ['{0}22222/htdocs/assets'
                                       .format(WOVar.wo_webroot),
                                       '{0}22222/htdocs/index.php'
                                       .format(WOVar.wo_webroot),
                                       '{0}22222/htdocs/index.html'
                                       .format(WOVar.wo_webroot)]
        # ngxblocker
        if pargs.ngxblocker:
            if os.path.isfile('/usr/local/sbin/setup-ngxblocker'):
                packages = packages + [
                    '/usr/local/sbin/setup-ngxblocker',
                    '/usr/local/sbin/install-ngxblocker',
                    '/usr/local/sbin/update-ngxblocker',
                    '/etc/nginx/conf.d/globalblacklist.conf',
                    '/etc/nginx/conf.d/botblocker-nginx-settings.conf',
                    '/etc/nginx/bots.d']

        if (packages) or (apt_packages):
            if (not pargs.force):
                start_remove = input('Are you sure you to want to'
                                     ' remove from server.'
                                     '\nPackage configuration will remain'
                                     ' on server after this operation.\n'
                                     'Remove stacks [y/N]?')
                if start_remove != "Y" and start_remove != "y":
                    Log.error(self, "Not starting stack removal")

            if 'nginx-custom' in apt_packages:
                WOService.stop_service(self, 'nginx')

            if 'mariadb-server' in apt_packages:
                WOMysql.backupAll(self)
                WOService.stop_service(self, 'mysql')

            # Netdata uninstaller
            if (set(['/var/lib/wo/tmp/'
                     'kickstart.sh']).issubset(set(packages))):
                if WOVar.wo_distro == 'Raspbian':
                    WOShellExec.cmd_exec(
                        self, "bash /usr/"
                        "libexec/netdata/"
                        "netdata-uninstaller.sh -y -f")
                else:
                    WOShellExec.cmd_exec(
                        self, "bash /opt/netdata/usr/"
                        "libexec/netdata/"
                        "netdata-uninstaller.sh - y - f",
                        errormsg='', log=False)

            if (packages):
                Log.wait(self, "Removing packages           ")
                WOFileUtils.remove(self, packages)
                Log.valide(self, "Removing packages           ")
            if (apt_packages):
                Log.debug(self, "Removing apt_packages")
                Log.wait(self, "Removing APT packages       ")
                WOAptGet.remove(self, apt_packages)
                WOAptGet.auto_remove(self)
                Log.valide(self, "Removing APT packages       ")

            Log.info(self, "Successfully removed packages")

    @expose(help="Purge packages")
    def purge(self):
        """Start purging of packages"""
        apt_packages = []
        packages = []
        pargs = self.app.pargs
        # Default action for stack purge
        if ((not pargs.web) and (not pargs.admin) and
            (not pargs.nginx) and (not pargs.php) and
            (not pargs.mysql) and (not pargs.wpcli) and
            (not pargs.phpmyadmin) and (not pargs.composer) and
                (not pargs.netdata) and (not pargs.dashboard) and
                (not pargs.fail2ban) and (not pargs.security) and
                (not pargs.mysqlclient) and (not pargs.mysqltuner) and
                (not pargs.adminer) and (not pargs.utils) and
                (not pargs.redis) and (not pargs.proftpd) and
                (not pargs.extplorer) and (not pargs.clamav) and
                (not pargs.cheat) and (not pargs.nanorc) and
                (not pargs.ufw) and (not pargs.ngxblocker) and
                (not pargs.phpredisadmin) and (not pargs.sendmail) and
                (not pargs.php73)):
            pargs.web = True
            pargs.admin = True
            pargs.security = True

        if pargs.all:
            pargs.web = True
            pargs.admin = True
            pargs.php73 = True
            pargs.fail2ban = True
            pargs.proftpd = True
            pargs.utils = True
            pargs.redis = True
            packages = packages + ['/var/www/22222/htdocs']

        if pargs.web:
            pargs.nginx = True
            pargs.php = True
            pargs.mysql = True
            pargs.wpcli = True
            pargs.sendmail = True

        if pargs.admin:
            pargs.utils = True
            pargs.composer = True
            pargs.netdata = True
            pargs.mysqltuner = True
            pargs.cheat = True

        if pargs.security:
            pargs.fail2ban = True
            pargs.clamav = True
            pargs.ufw = True
            pargs.ngxblocker = True

        # NGINX
        if pargs.nginx:
            if WOAptGet.is_installed(self, 'nginx-custom'):
                Log.debug(self, "Add Nginx to apt_packages list")
                apt_packages = apt_packages + WOVar.wo_nginx
            else:
                Log.info(self, "Nginx is not installed")

        # PHP
        if pargs.php:
            Log.debug(self, "Add PHP to apt_packages list")
            if WOAptGet.is_installed(self, 'php7.2-fpm'):
                if not (WOAptGet.is_installed(self, 'php7.3-fpm')):
                    apt_packages = apt_packages + WOVar.wo_php + \
                        WOVar.wo_php_extra
                else:
                    apt_packages = apt_packages + WOVar.wo_php

        # PHP 7.3
        if pargs.php73:
            Log.debug(self, "Removing apt_packages variable of PHP 7.3")
            if WOAptGet.is_installed(self, 'php7.3-fpm'):
                if not (WOAptGet.is_installed(self, 'php7.2-fpm')):
                    apt_packages = apt_packages + WOVar.wo_php73 + \
                        WOVar.wo_php_extra
                else:
                    apt_packages = apt_packages + WOVar.wo_php73

        # REDIS
        if pargs.redis:
            if WOAptGet.is_installed(self, 'redis-server'):
                Log.debug(self, "Remove apt_packages variable of Redis")
                apt_packages = apt_packages + ["redis-server"]
            else:
                Log.info(self, "Redis is not installed")

        # MariaDB
        if pargs.mysql:
            if WOAptGet.is_installed(self, 'mariadb-server'):
                Log.debug(self, "Add MySQL to apt_packages list")
                apt_packages = apt_packages + ['mariadb-server',
                                               'mysql-common',
                                               'mariadb-client']
                packages = packages + ['/etc/mysql', '/var/lib/mysql']
            else:
                Log.info(self, "MariaDB is not installed")

        # mysqlclient
        if pargs.mysqlclient:
            if WOShellExec.cmd_exec(self, "mysqladmin ping"):
                Log.debug(self, "Add MySQL client to apt_packages list")
                apt_packages = apt_packages + WOVar.wo_mysql_client

        # fail2ban
        if pargs.fail2ban:
            if WOAptGet.is_installed(self, 'fail2ban'):
                Log.debug(self, "Add Fail2ban to apt_packages list")
                apt_packages = apt_packages + WOVar.wo_fail2ban

        # ClamAV
        if pargs.clamav:
            if WOAptGet.is_installed(self, 'clamav'):
                Log.debug(self, "Add ClamAV to apt_packages list")
                apt_packages = apt_packages + WOVar.wo_clamav

        # UFW
        if pargs.ufw:
            if WOAptGet.is_installed(self, 'ufw'):
                Log.debug(self, "Add UFW to apt_packages list")
                apt_packages = apt_packages + ["ufw"]

        # sendmail
        if pargs.sendmail:
            if WOAptGet.is_installed(self, 'sendmail'):
                Log.debug(self, "Add sendmail to apt_packages list")
                apt_packages = apt_packages + ["sendmail"]

        # proftpd
        if pargs.proftpd:
            if WOAptGet.is_installed(self, 'proftpd-basic'):
                Log.debug(self, "Add Proftpd to apt_packages list")
                apt_packages = apt_packages + ["proftpd-basic"]

        # WP-CLI
        if pargs.wpcli:
            if os.path.isfile('/usr/local/bin/wp'):
                Log.debug(self, "Purge package variable WPCLI")
                packages = packages + ['/usr/local/bin/wp']

        # PHPMYADMIN
        if pargs.phpmyadmin:
            if os.path.isdir('{0}22222/htdocs/db/pma'
                             .format(WOVar.wo_webroot)):
                Log.debug(self, "Removing package of phpMyAdmin ")
                packages = packages + ['{0}22222/htdocs/db/pma'
                                       .format(WOVar.wo_webroot)]

        # Composer
        if pargs.composer:
            if os.path.isfile('/usr/local/bin/composer'):
                Log.debug(self, "Removing package variable of Composer ")
                packages = packages + ['/usr/local/bin/composer']

        # MySQLTuner
        if pargs.mysqltuner:
            if os.path.isfile('/usr/bin/mysqltuner'):
                Log.debug(self, "Removing packages for MySQLTuner ")
                packages = packages + ['/usr/bin/mysqltuner']

        # cheat.sh
        if pargs.cheat:
            if os.path.isfile('/usr/local/bin/cht.sh'):
                Log.debug(self, "Removing packages for cheat.sh ")
                packages = packages + [
                    '/usr/local/bin/cht.sh', '/usr/local/bin/cheat',
                    '/etc/bash_completion.d/cht.sh']

        # PHPREDISADMIN
        if pargs.phpredisadmin:
            Log.debug(self, "Removing package variable of phpRedisAdmin ")
            if os.path.isdir('{0}22222/htdocs/cache/redis'
                             .format(WOVar.wo_webroot)):
                packages = packages + ['{0}22222/htdocs/'
                                       'cache/redis'
                                       .format(WOVar.wo_webroot)]
        # ADMINER
        if pargs.adminer:
            if os.path.isdir('{0}22222/htdocs/db/adminer'
                             .format(WOVar.wo_webroot)):
                Log.debug(self, "Removing package variable of Adminer ")
                packages = packages + ['{0}22222/htdocs/db/adminer'
                                       .format(WOVar.wo_webroot)]
        # utils
        if pargs.utils:
            Log.debug(self, "Purge package variable utils")
            packages = packages + ['{0}22222/htdocs/php/webgrind/'
                                   .format(WOVar.wo_webroot),
                                   '{0}22222/htdocs/cache/opcache'
                                   .format(WOVar.wo_webroot),
                                   '{0}22222/htdocs/cache/nginx/'
                                   'clean.php'.format(WOVar.wo_webroot),
                                   '/usr/bin/pt-query-advisor',
                                   '{0}22222/htdocs/db/anemometer'
                                   .format(WOVar.wo_webroot)
                                   ]

        if pargs.netdata:
            Log.debug(self, "Removing Netdata")
            if os.path.isfile('/opt/netdata/usr/'
                              'libexec/netdata/netdata-uninstaller.sh'):
                packages = packages + ['/var/lib/wo/tmp/kickstart.sh']

        # wordops dashboard
        if pargs.dashboard:
            Log.debug(self, "Removing Wo-Dashboard")
            packages = packages + ['{0}22222/htdocs/assets/'
                                   .format(WOVar.wo_webroot),
                                   '{0}22222/htdocs/index.php'
                                   .format(WOVar.wo_webroot)]

        # ngxblocker
        if pargs.ngxblocker:
            if os.path.isfile('/usr/local/sbin/setup-ngxblocker'):
                packages = packages + [
                    '/usr/local/sbin/setup-ngxblocker',
                    '/usr/local/sbin/install-ngxblocker',
                    '/usr/local/sbin/update-ngxblocker',
                    '/etc/nginx/conf.d/globalblacklist.conf',
                    '/etc/nginx/conf.d/botblocker-nginx-settings.conf',
                    '/etc/nginx/bots.d']

        if (packages) or (apt_packages):
            if (not pargs.force):
                start_purge = input('Are you sure you to want to'
                                    ' purge stacks from this server ?'
                                    '\nPackage configuration and data '
                                    'will not remain'
                                    ' on this server after this operation.\n'
                                    'Purge stacks [y/N]')
                if start_purge != "Y" and start_purge != "y":
                    Log.error(self, "Not starting stack purge")

            if (set(["nginx-custom"]).issubset(set(apt_packages))):
                WOService.stop_service(self, 'nginx')

            if (set(["fail2ban"]).issubset(set(apt_packages))):
                WOService.stop_service(self, 'fail2ban')

            if (set(["mariadb-server"]).issubset(set(apt_packages))):
                if (os.path.isfile('/usr/bin/mysql') and
                        os.path.isdir('/var/lib/mysql')):
                    WOMysql.backupAll(self)
                    WOService.stop_service(self, 'mysql')

            # Netdata uninstaller
            if (set(['/var/lib/wo/tmp/'
                     'kickstart.sh']).issubset(set(packages))):
                if WOVar.wo_distro == 'Raspbian':
                    WOShellExec.cmd_exec(self, "bash /usr/"
                                         "libexec/netdata/netdata-"
                                         "uninstaller.sh -y -f",
                                         errormsg='', log=False)
                else:
                    WOShellExec.cmd_exec(self, "bash /opt/netdata/usr/"
                                         "libexec/netdata/netdata-"
                                         "uninstaller.sh -y -f")

            if (apt_packages):
                Log.wait(self, "Purging APT Packages        ")
                WOAptGet.remove(self, apt_packages, purge=True)
                WOAptGet.auto_remove(self)
                Log.valide(self, "Purging APT Packages        ")

            if (packages):
                Log.wait(self, "Purging Packages            ")
                WOFileUtils.remove(self, packages)
                Log.valide(self, "Purging Packages            ")
            Log.info(self, "Successfully purged packages")


def load(app):
    # register the plugin class.. this only happens if the plugin is enabled
    app.handler.register(WOStackController)
    app.handler.register(WOStackStatusController)
    app.handler.register(WOStackMigrateController)
    app.handler.register(WOStackUpgradeController)

    # register a hook (function) to run after arguments are parsed.
    app.hook.register('post_argument_parsing', wo_stack_hook)