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Current File : /opt/cloudlinux/venv/lib64/python3.11/site-packages/clselect/clselectctlpython.py
# -*- coding: utf-8 -*-

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

from __future__ import print_function
from __future__ import absolute_import
from __future__ import division
import getopt
import glob
import os
import re
import shutil
import sys
import pwd
import fnmatch
import secureio
import traceback
import requests
import requests.packages.urllib3.exceptions as urllib_exceptions                        #pylint: disable=E0401

from requests.exceptions import ConnectionError
from future.utils import iteritems

from . import clpassenger
from . import clselectctl
from . import utils
import cldetectlib as detect

from clcommon.cpapi import userdomains, docroot, cpusers, CP_NAME
from clcommon.cpapi.cpapiexceptions import NoDomain, NotSupported
from clcommon.utils import mod_makedirs

from .clselectpython.apps_manager import (
    ApplicationsManager,
    PythonAppFormatVersion,
    get_venv_rel_path
)
from .clselectexcept import ClSelectExcept, BaseClSelectException
from .clselectprint import clprint
from .clselectpythonuser import extensions, environments, interpreters
from .baseclselect import APP_STARTED_CONST, APP_STOPPED_CONST


DEFAULT_STARTUP_FILE = 'passenger_wsgi.py'
DEFAULT_APP_STATE = u'started'
DEFAULT_APP_ENTRYPOINT = 'application'

WSGI_TEMPLATE = r'''import imp
import os
import sys


sys.path.insert(0, os.path.dirname(__file__))

wsgi = imp.load_source('wsgi', '%s')
application = wsgi.%s
'''

_CONFIGURABLE_WSGI_TEMPLATE = r'''import os
import sys


sys.path.insert(0, os.path.dirname(__file__))


def %s(environ, start_response):
    start_response('200 OK', [('Content-Type', 'text/plain')])
    message = 'It works!\n'
    version = 'Python v' + sys.version.split()[0] + '\n'
    response = '\n'.join([message, version])
    return [response.encode()]
'''


WSGI_PATTERN = re.compile("imp\.load_source\(.+, '(?P<script>.+)'\)\s+"
                          "application.+\.(?P<callable>.+)")


def usage():
    print('Warning: selectorctl utility for --interpreter python is deprecated. '
          'Only update-interpreter option is still possible to use. '
          '\nPlease, use cloudlinux-selector utility to manage your python applications')
    print(' -v | --version VERSION                  : Specify alternative version')
    print(' -u | --user USERNAME                    : Username')
    print('      --domain DOMAIN                    : Domain (or subdomain); users main domain as default')
    print(' -l | --list                             : List alternatives for interpreter')
    print(' -G | --list-extensions                  : List global set of packages')
    print(' -K | --list-extensions-version          : List version set of packages')
    print(' -s | --user-summary                     : List user summary of webapps')
    print(' -y | --create-webapp                    : Create user webapp')
    print('    | --update-interpreter               : Update binary python in virtual environment; you can use with ')
    print('                                           --user=* for all users; application name as default * (all app)')
    print(' -n | --destroy-webapp                   : Destroy user webapp')
    print(' -f | --relocate-webapp                  : Change webapp directory (files must be moved manually)')
    print(' -F | --transit-webapp                   : Change webapp domain/alias')
    print(' -Z | --restart-webapp                   : Restart webapp')
    print(' -t | --stop-webapp                      : Stop webapp')
    print(' -c | --user-current                     : Show currently selected alternative for user webapp')
    print(' -b | --set-user-current                 : Set alternative as user webapp default')
    print(' -e | --enable-user-extensions PACKAGES  : Install comma-separated list of packages for user webapp')
    print(' -d | --disable-user-extensions PACKAGES : Uninstall comma-separated list of packages for user webapp')
    print("                                         : Use '-' (minus) for all packages")
    print(' -r | --replace-user-extensions PACKAGES : Update comma-separated list of packages for user webapp')
    print("                                         : Use '-' (minus) for all packages")
    print('      --recreate-virtualenv              : Recreate python virtual environment')
    print('      --freeze-requirements              : Freeze virtual environment installed packages')
    print(' -g | --list-user-extensions             : List installed packages for user webapp')
    print(' -o | --setup-wsgi WSGI[:CALLABLE]       : Setup wsgi')
    print(' -p | --print-summary                    : If specified along with setting an alternative ')
    print('                                           prints user summary')
    print(' -j | --json                             : Print data as JSON')
    print('    | --verbose                          : show detail information about action')


def _create_environment(user, directory, version, env_name=None, use_existing=True):
    """
    Create new environment (or use existing if use_existing=True)
    :param user: unix user name that app belongs to
    :param directory: app root
    :param version: python version
    :param env_name: DEPRECATED
    :param use_existing: do not raise exception if env already exists
    """
    _, prefix = get_venv_rel_path(user, directory)
    if not env_name:
        env_name = version
    environment = environments.Environment(env_name, user, prefix)
    if environment.exists() and not use_existing:
        raise ClSelectExcept.EnvironmentAlreadyExists(environment.path)
    if not environment.exists():
        try:
            interpreter = interpreters.interpreters(key='version')[version]
        except KeyError:
            raise ClSelectExcept.NoSuchAlternativeVersion(version)
        environment.create(interpreter)
    return environment


def _get_environment(user, directory, app_summary=None, apps_manager=None):
    if apps_manager is None:
        apps_manager = ApplicationsManager()
    try:
        if app_summary:
            binary = app_summary['binary']
        else:
            binary = apps_manager.get_binary_path(user, directory, pwd.getpwnam(user).pw_dir)
    except ClSelectExcept.ConfigMissingError:
        # this method is called in many places,
        # there could be case when config is still absent or empty
        app_summary = clpassenger.summary(user).get(directory)
        if app_summary is None:
            raise ClSelectExcept.WebAppError('No such application (or application not configured) "%s"' % directory)
        binary = app_summary['binary']
    env_name = os.path.basename(os.path.dirname(os.path.dirname(binary)))
    _, prefix = get_venv_rel_path(user, directory)
    environment = environments.Environment(env_name, user, prefix)
    return environment


def create(user, directory, alias, version=None, doc_root=None,
           env_vars=None, startup_file=None, domain_name=None, entry_point=None,
           apps_manager=None, passenger_log_file=None):
    """
    Create new python application
    :param user: unix user name
    :param directory: application path in user's home (app-root)
    :param alias: alias (app-uri)
    :param version: version of interpreter
    :param doc_root: doc_root
    :param env_vars: dict with environment variables
    :param startup_file: main application file
    :param domain_name: domain name
    :param entry_point: application entry point
    :param apps_manager: Application Manager. Class that responsible
           for gathering and writing information about applications
    :param passenger_log_file: Passenger log filename to write to app's .htaccess
    :return: None
    """

    if apps_manager is None:
        apps_manager = ApplicationsManager()

    if version is None:
        raise ClSelectExcept.WrongData('Not passed version as argument')

    alias = clselectctl.get_alias(alias)

    user_summary = clpassenger.summary(user)
    try:
        app_summary = utils.get_using_realpath_keys(user, directory, user_summary)
    except KeyError:
        pass
    else:
        raise ClSelectExcept.AppRootBusy(app_summary['directory'])

    environment = _create_environment(user, directory, version, use_existing=False)
    binary = environment.interpreter().binary

    clpassenger.configure(user, directory, alias, apps_manager.INTERPRETER, binary, doc_root=doc_root,
                          passenger_log_file = passenger_log_file)
    clpassenger.restart(user, directory)
    # create new startup file with supplied name
    if entry_point:
        content = _CONFIGURABLE_WSGI_TEMPLATE % entry_point
    else:
        content = clpassenger.WSGI_TEMPLATE
    if startup_file and startup_file != DEFAULT_STARTUP_FILE:
        # Custom startup file, use existing mechanism to set new startup file and entrypoint
        startup_file_name = _get_full_path_to_startup_file(user, directory, startup_file)
        # to be able set /some/not/existing/dir for startup file
        dir_name = os.path.dirname(startup_file_name)
        if not os.path.exists(dir_name):
            mod_makedirs(dir_name, 0o755)
        # save new startup file
        utils.file_write(startup_file_name, content)
        # Set startup file and entrypoint (if need)
        if entry_point:
            setup_wsgi(user, directory, startup_file_name, entry_point)
    else:
        # No startup file provided, use default
        startup_file = DEFAULT_STARTUP_FILE
        # Set new startup_file and/or entrypoint
        # build startup_file full path - setup_wsgi function requirement
        startup_file_name = _get_full_path_to_startup_file(user, directory, startup_file)
        # save new startup file
        utils.file_write(startup_file_name, content)
        if entry_point:
            # Set new entrypoint
            setup_wsgi(user, directory, startup_file_name, entry_point)

    if not env_vars:
        env_vars = {}

    if not entry_point:
        # if entrypoint not supplied, use default in config.
        # We don't need to set it in the application because it the same with passenger settings
        entry_point = DEFAULT_APP_ENTRYPOINT
    # Add application to user's config file
    if not domain_name:
        # if domain name not defined - try to determine it
        summary_data = clpassenger.summary(user)
        app_summary = utils.get_using_realpath_keys(user, directory, summary_data)
        domain_name = app_summary['domain']
    # TODO: use namedtuple or just class instead of plain dicts
    app_data = {
        u'python_version': version,
        u'app_version': PythonAppFormatVersion.STABLE,
        u'domain': domain_name,
        u'app_uri': alias,
        u'app_status': DEFAULT_APP_STATE,
        u'startup_file': startup_file,
        u'config_files': [],
        u'env_vars': env_vars,
        u'entry_point': entry_point
    }
    if passenger_log_file:
        app_data[u'passenger_log_file'] = passenger_log_file
    apps_manager.add_app_to_config(user, directory, app_data)
    try:
        apps_manager.add_env_vars_for_htaccess(user, directory, env_vars, doc_root)
    except Exception as err:
        clprint.print_diag('text', {'status': 'ERROR', 'message': str(err)})


def _ensure_version_enabled(version, user):
    """
    Check whether particular interpreter version is enabled and raises
    exception if not
    :param user: user to include in exception
    """
    from .clselectpython import python_manager
    if not python_manager.PythonManager().is_version_enabled(version):
        raise ClSelectExcept.UnableToSetAlternative(
            user, version, 'version is not enabled')


def check_response_from_webapp(domain, alias, action=None):
    """
    Check response from user's webapp before and after calling action.
    Also compare both responses
    :param domain: domain associated with webapp
    :param alias: URI associated with webapp
    :param action: called action, that make something with webapp: install modules, transit it, etc
    :return: None
    """

    app_is_inaccessible_before = 'Web application is inaccessible by its address "%s". The operation wasn\'t performed.'
    app_is_inaccessible_after = 'The operation was performed, but check availability of application has failed. ' \
                                'Web application is inaccessible by its address "%s" after the operation.'
    app_is_broken = 'The operation was performed, but check availability of application has failed. ' \
                    'Web application responds, but its return code "%s" or ' \
                    'content type before operation "%s" doesn\'t equal to contet type after operation "%s".'

    requests.packages.urllib3.disable_warnings(urllib_exceptions.InsecureRequestWarning)        #pylint: disable=E1101

    if not callable(action):
        raise ClSelectExcept.WrongData('Wrong action for calling in checking webapp')
    webapp_url = 'https://{domain}/{alias}'.format(
        domain=domain,
        alias=alias,
    )
    try:
        request = requests.get(webapp_url, verify=False)
    except ConnectionError:
        # site is not available by https protocol
        webapp_url = webapp_url.replace('https://', 'http://')
        try:
            request = requests.get(webapp_url, verify=False)
        except ConnectionError:
            raise ClSelectExcept.WebAppError(app_is_inaccessible_before % webapp_url)
    before_mime_type = request.headers.get('Content-Type')
    before_status = request.headers.get('Status')
    action()
    try:
        request = requests.get(webapp_url, verify=False)
    except ConnectionError:
        raise ClSelectExcept.WebAppError(app_is_inaccessible_after % webapp_url)
    after_mime_type = request.headers.get('Content-Type')
    after_status = request.headers.get('Status')
    # assume that app is broken if:
    # it's response Content-Type or Status code (if first code wasn't 500) changed
    # if last Status code was 500 (internal error)
    if before_mime_type.lower() != after_mime_type.lower() or \
        (before_status != after_status and before_status is not None and before_status[:3] != '500') \
            or (after_status is not None and after_status[:3] == '500'):
        raise ClSelectExcept.WebAppError(app_is_broken % (after_status, before_mime_type, after_mime_type))


def _get_info_about_webapp(app_summary=None, user=None):
    """
    Get info (alias and domain) about user's web application
    :param app_summary: dict -> summary info about user's web application
    :param user: str -> name of unix user
    :return: tuple -> (alias, domain)
    """

    if app_summary is None:
        raise ClSelectExcept.WrongData('Was passed incorrect summary info about application')
    if user is None:
        raise ClSelectExcept.WrongData('Was passed incorrect name of user')
    alias = app_summary['alias']
    user_domains = userdomains(user)
    found_domains = [
            domain for domain, doc_root in user_domains
            if utils.realpaths_are_equal(user, doc_root, app_summary['docroot'])]
    if len(found_domains) == 0:
        raise ClSelectExcept.WrongData('Can not found suitable domain for application')
    app_domain = found_domains[0]

    return alias, app_domain


def destroy(user, app_directory, doc_root, apps_manager=None):
    """
    Destroy web app with specified directory for specified user
    :param user: username
    :param app_directory: application directory
    :param doc_root: Document root for selected domain
    :param apps_manager: Application Manager. Class that responsible
           for gathering and writing information about applications
    :return: None
    """

    if apps_manager is None:
        apps_manager = ApplicationsManager()

    # get app state
    app_config = apps_manager.get_app_config(user, app_directory)
    # remove env from htaccess
    try:
        # if domain is already removed we shouldn't do anything
        if doc_root is not None:
            apps_manager.add_env_vars_for_htaccess(user, app_directory, None, doc_root)
    except Exception as err:
        clprint.print_diag('text', {'status': 'ERROR', 'message': str(err)})

    if app_config is not None and app_config.get('app_status') == APP_STOPPED_CONST:
        # stopped app
        user_home = pwd.getpwnam(user).pw_dir
        # Remove app's virtualenv, e.g. /home/cltest1/virtualenv/test_app
        # TODO: Account for possible symlinks in LU-832
        virtual_env_path = os.path.join(
            user_home, get_venv_rel_path(user, app_directory)[1])
        try:
            shutil.rmtree(virtual_env_path)
        except OSError:
            pass
        # if domain is already removed we shouldn't do anything
        if doc_root is not None:
            # Remove passenger lines from .htaccess
            htaccess_filename = apps_manager.get_htaccess_by_appdir(user, app_directory, doc_root)
            clpassenger.remove_passenger_lines_from_htaccess(htaccess_filename)
        # remove app from python-selector.json file
        apps_manager.remove_app_from_config(user, app_directory)
        # Update application status in passenger
        clpassenger.restart(user, app_directory)
        return
    # Moved before removing an app from node-selector.json because in case if
    # app_root is absent we still want to remove venv dir of an application.
    # The method didn't anyhing if app_root is absent and skip other commands
    # including removal of a venv dir
    _, prefix = get_venv_rel_path(user, app_directory)
    abs_dir, _ = utils.get_abs_rel(user, prefix)
    try:
        # Remove app's virtualenv, e.g. /home/cltest1/virtualenvnv/test_app
        shutil.rmtree(abs_dir)
    except OSError:
        pass
    user_summary = clpassenger.summary(user)
    # remove app from python-selector.json file
    app_in_config = apps_manager.remove_app_from_config(user, app_directory)
    try:
        utils.get_using_realpath_keys(user, app_directory, user_summary)
    except KeyError:
        # if app was existed and app's dir is not exists, we skip all further actions
        if app_in_config:
            return None
        else:
            raise ClSelectExcept.WrongData("No such application (or application not configured) \"%s\""
                                           % app_directory)
    # remove app from passenger
    clpassenger.unconfigure(user, app_directory)        # Clear .htaccess

    try:
        clpassenger.restart(user, app_directory)
    except ClSelectExcept.MissingApprootDirectory:
        pass


def fix_homedir(user):
    user = clselectctl.get_user(user)

    envs, _ = utils.get_abs_rel(user, environments.DEFAULT_PREFIX)

    for env in glob.glob(os.path.join(envs, '*', '*')):
        for script in glob.glob(os.path.join(env, 'bin', '*')):
            # we should not even try to read symlinks
            if os.path.islink(script):
                continue
            old_script = utils.file_read(script, 'rb')
            new_script = []
            encoded_env = env.encode()
            # in fact, this is only for activate scripts
            if b'VIRTUAL_ENV' in old_script:
                for line in old_script.splitlines():
                    if b'VIRTUAL_ENV' in line:
                        # matches both cases with single and double quotes
                        # example: VIRTUAL_ENV="<some_path>" VIRTUAL_ENV='<some_path>'
                        line = re.sub(
                            rb'VIRTUAL_ENV[^\\]([\"\'])(?P<old_path>.+)\1$',
                            lambda m: m.group(0).replace(m.group('old_path'), encoded_env),
                            line)
                    new_script.append(line)
            # change all shebangs to python
            # TODO: what about shebangs to global python?
            elif old_script.startswith(b'#!'):
                new_script = old_script.splitlines()
                new_script[0] = b'#!%s/bin/python' % encoded_env
            if new_script:
                utils.file_writelines(script, (b'%s\n' % line for line in new_script), 'wb')


def install(user, directory, extension=None, requirements_path=None, skip_web_check=False, apps_manager=None):
    """
    Install defined extension to python web application
    :param requirements_path: path to the text file with list of python modules for installation
    :param user: name of owner of web application
    :param directory: application's root
    :param extension: name of installed module
    :param skip_web_check: skip check web application after change it's properties
    :param apps_manager: Application Manager. Class that responsible
           for gathering and writing information about applications
    :return: None
    """

    if apps_manager is None:
        apps_manager = ApplicationsManager()

    user = clselectctl.get_user(user)
    user_config = apps_manager.get_user_config_data(user)
    try:
        app_data = utils.get_using_realpath_keys(user, directory, user_config)
    except KeyError:
        raise ClSelectExcept.WrongData('Record about application {} is absent'.format(directory))
    if app_data['app_status'] != APP_STARTED_CONST:
        skip_web_check = True

    environment = _get_environment(user, directory, apps_manager=apps_manager)

    def action():
        if extension is not None:
            environment.extension_install(extension)
        elif requirements_path is not None:
            environment.extension_install_requirements(os.path.join(directory, requirements_path))

    if not skip_web_check:
        try:
            check_response_from_webapp(
                domain=app_data['domain'],
                alias=app_data['app_uri'],
                action=action,
            )
        except ClSelectExcept.WebAppError as err:
            raise ClSelectExcept.WebAppError('An error occured during installation of modules. %s' % err)
    else:
        action()


def list_extensions(user, directory):
    user = clselectctl.get_user(user)
    environment = _get_environment(user, directory)
    return environment.extensions()


def restart(user, app_directory, doc_root=None, apps_manager=None):
    """
    Restarts web app with specified directory for specified user
    :param user: username
    :param app_directory: application directory
    :param doc_root: Document root for selected domain
    :param apps_manager: Application Manager. Class that responsible
           for gathering and writing information about applications
    :return: None
    """

    if apps_manager is None:
        apps_manager = ApplicationsManager()

    app_config = apps_manager.get_app_config(user, app_directory)
    if app_config is not None and app_config.get('app_status') == APP_STOPPED_CONST:
        # If application was stopped - start it
        # doc_root is None during 'update-interpreter' command
        if doc_root is not None:
            start(user, app_directory, doc_root)
    else:
        apps_summary = clpassenger.summary(user)
        if app_directory not in apps_summary:
            raise ClSelectExcept.WrongData(
                'No such application (or application not configured) "%s"' % app_directory)
    clpassenger.restart(user, app_directory)


def stop(user, app_directory, doc_root, apps_manager=None):
    """
    Stops web app with specified directory for specified user
    :param user: username
    :param app_directory: application directory
    :param doc_root: Document root for selected domain
    :param apps_manager: Application Manager. Class that responsible
           for gathering and writing information about applications
    :return: None
    """

    if apps_manager is None:
        apps_manager = ApplicationsManager()

    app_config = apps_manager.get_app_config(user, app_directory)
    if app_config is None:
        raise ClSelectExcept.WrongData("No such application (or application not configured) \"%s\""
                                       % app_directory)
    # Do nothing if application already stopped
    if app_config.get('app_status') == APP_STOPPED_CONST:
        return
    htaccess_filename = apps_manager.get_htaccess_by_appdir(user, app_directory, doc_root, app_config)
    # Remove passenger lines from .htaccess
    clpassenger.remove_passenger_lines_from_htaccess(htaccess_filename)
    # Save new application status in user's config
    apps_manager.set_app_status(user, app_directory, APP_STOPPED_CONST)
    # Update application status in passenger
    clpassenger.restart(user, app_directory)


def start(user, app_directory, doc_root, apps_manager=None):
    """
    Starts web app with specified directory for specified user
    :param user: username
    :param app_directory: application directory
    :param doc_root: Document root for selected domain
    :param apps_manager: Application Manager. Class that responsible
           for gathering and writing information about applications
    :return: None
    """

    if apps_manager is None:
        apps_manager = ApplicationsManager()

    app_config = apps_manager.get_app_config(user, app_directory)
    if app_config is None:
        raise ClSelectExcept.WrongData("No such application (or application not configured) \"%s\""
                                       % app_directory)
    # Do nothing if application already started
    if app_config.get('app_status') == APP_STARTED_CONST:
        return
    # Create .htaccess file for the application
    apps_manager.update_htaccess_file(user, app_directory, doc_root)
    # Save new application status in user's config
    apps_manager.set_app_status(user, app_directory, APP_STARTED_CONST)
    # Update application status in passenger
    clpassenger.restart(user, app_directory)
    # Update wsgi file. It can be changed while app was stopped
    startup_file = app_config.get('startup_file')
    if startup_file != DEFAULT_STARTUP_FILE:
        startup_file_full_path = _get_full_path_to_startup_file(
            user,
            app_directory,
            app_config.get('startup_file'),
        )
        setup_wsgi(user, app_directory, startup_file_full_path, app_config.get('entry_point'))



def setup_wsgi(user, directory, wsgi_path, callable_object=None):
    user = clselectctl.get_user(user)
    abs_dir, _ = utils.get_abs_rel(user, directory)
    apps_summary = clpassenger.summary(user)
    if directory not in apps_summary:
        raise ClSelectExcept.WrongData("No such application (or application not configured) \"%s\"" % directory)
    if os.path.isabs(wsgi_path):
        if not os.path.isfile(wsgi_path):
            raise ClSelectExcept.WrongData('No such WSGI script \"%s\"' % wsgi_path)
        wsgi_path = utils.s_partition(wsgi_path, abs_dir)[2].strip(os.path.sep)
        if not wsgi_path:
            raise ClSelectExcept.WrongData('WSGI script is not in webapp directory')
    else:
        raise ClSelectExcept.WrongData('Path to WSGI script must be absolute')

    app_wsgi = os.path.join(abs_dir, clpassenger.WSGI_PATH)
    # Set new callable object if need
    if not callable_object:
        callable_object = DEFAULT_APP_ENTRYPOINT
    utils.file_write(app_wsgi, WSGI_TEMPLATE % (wsgi_path, callable_object), 'w')
    # Restart application
    clpassenger.restart(user, directory)


def has_virtenv_dir(user):
    """
    return True if user home dir has virtualenv dir
    """
    homedir = pwd.getpwnam(user).pw_dir
    path = os.path.join(homedir, 'virtualenv')
    return os.path.isdir(path)


def summary(user):
    user = clselectctl.get_user(user)

    summ = {}
    if not has_virtenv_dir(user):
        return summ

    for directory, data in iteritems(clpassenger.summary(user)):
        if data['interpreter'] != ApplicationsManager.INTERPRETER:
            continue
        try:
            environment = _get_environment(user, directory, data).as_deepdict()
            app_wsgi = os.path.join(data['directory'], clpassenger.WSGI_PATH)
            wsgi_conf = utils.file_read(app_wsgi)
            match = WSGI_PATTERN.search(wsgi_conf)
            if match:
                groupdict = match.groupdict()
                wsgi_path = groupdict['script']
                callable_object = groupdict['callable']
            else:
                wsgi_path = callable_object = ''

            env_info = {
                'alias': data['alias'],
                'domain': data['domain'],
                'environment': environment['name'],
                'interpreter': environment['interpreter'],
                'extensions': environment['extensions'],
                'wsgi': {'script': wsgi_path, 'callable': callable_object},
            }

            # add only list with additions domains
            if "domains" in data and len(data["domains"]) > 1:
                env_info["domains"] = data["domains"]
        except Exception as e:
            env_info = {"error": str(e)}

        summ[directory] = env_info

    return summ


def _get_full_path_to_startup_file(user, directory, startup_file):
    # type: (str, str, str) -> str
    """
    :param user: name of system user
    :param directory: name of dir with python applicatoin
    :param startup_file: name of startup file of python application
    Get full path to startup file of python application
    """

    abs_dir, rel_dir = utils.get_abs_rel(user, directory)
    return os.path.join(abs_dir, startup_file)


def uninstall(user, directory, extension):
    user = clselectctl.get_user(user)
    environment = _get_environment(user, directory)
    environment.extension_uninstall(extension)


def update(user, directory, extension):
    user = clselectctl.get_user(user)
    environment = _get_environment(user, directory)
    environment.extension_update(extension)


# TODO: We should remove that method completely, because this script already doesn't caused directly
def main():
    try:
        opts, args = getopt.getopt(
            sys.argv[1:],
            'hi:v:u:lGsynfFZtcbe:d:r:go:pjK:', [
                'help',
                'interpreter=',
                'version=',
                'user=',
                'domain=',
                'list',
                'list-extensions',
                'user-summary',
                'create-webapp',
                'update-interpreter',
                'destroy-webapp',
                'relocate-webapp',
                'transit-webapp',
                'restart-webapp',
                'start-webapp',
                'stop-webapp',
                'user-current',
                'set-user-current',
                'enable-user-extensions=',
                'disable-user-extensions=',
                'replace-user-extensions=',
                'recreate-virtualenv',
                'freeze-requirements',
                'list-user-extensions',
                'setup-wsgi=',
                'print-summary',
                'json',
                'verbose',
                'list-extensions-version='
                ])
    except getopt.GetoptError as err:
        sys.stderr.write(str(err))
        usage()
        sys.exit(1)

    ext_list = ''
    fmt = 'text'
    verbose = False
    print_summary = False
    user = None
    domain = None
    action = ''
    version = None

    if not opts:
        usage()
        sys.exit(1)

    allowed_opts = ('--update-interpreter', )
    if not any(item[0] in allowed_opts for item in opts):
        clprint.print_diag(fmt, {'status': 'ERROR',
                                 'message': 'Unsupported option was passed. Currently, selectorctl utility '
                                            'supports only update-interpreter option. '
                                            'Please, use cloudlinux-selector utility for python '
                                            'interpreter'})
        sys.exit(1)

    for o, a in opts:
        if o in ('-i', '--interpreter'):
            pass
        elif o in ('-l', '--list'):
            action = 'list'
        elif o in ('-y', '--create-webapp'):
            action = 'create-webapp'
        elif o == '--update-interpreter':
            action = 'update-interpreter'
        elif o in ('-n', '--destroy-webapp'):
            action = 'destroy-webapp'
        elif o in ('-f', '--relocate-webapp'):
            action = 'relocate-webapp'
        elif o in ('-F', '--transit-webapp'):
            action = 'transit-webapp'
        elif o in ('-Z', '--restart-webapp'):
            action = 'restart-webapp'
        elif o in ('-S', '--start-webapp'):
            action = 'start-webapp'
        elif o in ('-t', '--stop-webapp'):
            action = 'stop-webapp'
        elif o in ('-c', '--user-current'):
            action = 'user-current'
        elif o in ('-b', '--set-user-current'):
            action = 'set-user-current'
        elif o in ('-g', '--list-user-extensions'):
            action = 'list-user-extensions'
        elif o in ('-e', '--enable-user-extensions'):
            action = 'enable-user-extensions'
            ext_list = a
        elif o in ('--recreate-virtualenv',):
            action = 'recreate-virtualenv'
            ext_list = a
        elif o in ('--freeze-requirements',):
            action = 'freeze-requirements'
            ext_list = a
        elif o in ('-s', '--user-summary'):
            action = 'user-summary'
        elif o in ('-j', '--json'):
            fmt = 'json'
        elif o == '--verbose':
            verbose = True
        elif o in ('-r', '--replace-user-extensions'):
            action = 'replace-user-extensions'
            ext_list = a
        elif o in ('-d', '--disable-user-extensions'):
            action = 'disable-user-extensions'
            ext_list = a
        elif o in ('-v', '--version'):
            version = a
        elif o in ('-G', '--list-extensions'):
            action = 'list-extensions'
        elif o in ('-u', '--user'):
            user = a.strip("'\"")  # for deleting \' and \"
        elif o == '--domain':
            domain = a
        elif o in ('-o', '--setup-wsgi'):
            action = 'setup-wsgi'
            wsgi_path, _, callable_object = utils.s_partition(a, ':')
        elif o in ('-p', '--print-summary'):
            print_summary = True
        elif o in ('-K', '--list-extensions-version'):
            action = 'list-extensions-version'
            ext_list = a
        else:
            sys.stderr.write('unhandled option')
            sys.exit(1)

    if action == '':
        sys.stderr.write('ERROR:you must provide option for interpreter python')
        sys.exit(1)

    if action in (
            'create-webapp',
            'destroy-webapp',
            'relocate-webapp',
            'transit-webapp',
            'restart-webapp',
            'start-webapp',
            'stop-webapp',
            'enable-user-extensions',
            'list-user-extensions',
            'replace-user-extensions',
            'disable-user-extensions',
            'setup-wsgi',
            'user-current',
            'set-user-current',
    ):
        if not args:
            sys.stderr.write('webapp must be specified')
            sys.exit(3)

    if ext_list == '-':
        if action == 'enable-user-extensions':
            sys.stderr.write('installation of all extensions is not possible')
            sys.exit(4)
    elif ext_list:
        _exts = [_f for _f in ext_list.split(',') if _f]

    if domain:
        try:
            doc_root, user_ = docroot(domain)
        except NoDomain:
            clprint.print_diag(fmt, {'status': 'ERROR', 'message': 'No such domain: "%s"' % domain})
            sys.exit(1)
        except NotSupported:
            clprint.print_diag(fmt, {'status': 'ERROR', 'message': 'Python selector not supported for %s' % CP_NAME})
            sys.exit(1)

        if not user:  # we can obtain user name for domain
            user = user_
        elif user != user_:
            clprint.print_diag(fmt, {'status': 'ERROR', 'message': 'domain "%s" is not owned by the user "%s"' % (domain, user)})
            sys.exit(1)
    else:
        # commands that need user specified
        if action in (
            'create-webapp',
            'destroy-webapp',
            'relocate-webapp',
            'transit-webapp',
            'restart-webapp',
            'start-webapp',
            'stop-webapp',
            'enable-user-extensions',
            'list-user-extensions',
            'replace-user-extensions',
            'disable-user-extensions',
            'setup-wsgi',
            'user-summary',
            'update-interpreter',
            'user-current',
            'set-user-current',
        ):
            try:
                user = clselectctl.get_user(user)
            except ValueError as e:
                clprint.print_diag(fmt, {'status': 'ERROR', 'message': str(e)})
                sys.exit(1)
        if user and not action == 'update-interpreter':
            try:
                domain_list = userdomains(user)
            except NotSupported:
                clprint.print_diag(fmt, {'status': 'ERROR', 'message': 'Python selector not supported for %s' % CP_NAME})
                sys.exit(1)

            _, doc_root = domain_list[0]  # get document root for main domain

    try:
        error = 0
        ok = 0
        result = {}
        if action == 'list-extensions':
            raise DeprecationWarning('%s is deprecated in old python selector' % action)
        elif action == 'list-extensions-version':
            result = extensions.ExtensionInfo().list_extensions_version(_exts)
            ext_list = ''
        elif action == 'list':
            result = interpreters.interpreters_dict('version')
        elif action == 'user-summary':
            result = summary(user)
        elif action == 'create-webapp':
            create(user, args[0], args[1], version, doc_root=doc_root)
        elif action == 'update-interpreter':
            app_name = '*'  # all applications as default
            if len(args) == 1:
                app_name = args[0].strip("'\"")
            update_interpreter(user=user, app_name=app_name, version=(version,), verbose=verbose)
        elif action == 'destroy-webapp':
            destroy(user, args[0], doc_root)
        elif action == 'relocate-webapp':
            raise DeprecationWarning('%s is deprecated in old python selector' % action)
        elif action == 'transit-webapp':
            new_doc_root = None
            if domain:  # remove app to new domain if domain present
                new_doc_root = doc_root
            raise DeprecationWarning('%s is deprecated in old python selector' % action)
        elif action == 'restart-webapp':
            # username, app-dir
            restart(user, args[0], doc_root)
        elif action == 'start-webapp':
            # username, app-dir, doc_root
            start(user, args[0], doc_root)
        elif action == 'stop-webapp':
            # username, app-dir, doc_root
            stop(user, args[0], doc_root)
        elif action == 'user-current':
            raise DeprecationWarning('%s is deprecated in old python selector' % action)
        elif action == 'set-user-current':
            raise DeprecationWarning('%s is deprecated in old python selector' % action)
        elif action == 'list-user-extensions':
            result = list_extensions(user, args[0])
        elif action == 'setup-wsgi':
            # --setup-wsgi=<file_path:callable>
            # args[0] -- app_root
            #  wsgi_path -- file_path
            #  callable_object -- callable
            setup_wsgi(user, args[0], wsgi_path, callable_object)
        elif action == 'recreate-virtualenv':
            for env in environments.environments():
                env.recreate()
        elif action == 'freeze-requirements':
            for env in environments.environments():
                env.pip_freeze()
        else:
            alias = args[0]
            if ext_list == '-':
                _exts = list_extensions(user, alias)

            for extension in _exts:
                try:
                    if action == 'enable-user-extensions':
                        install(user, alias, extension)
                    elif action == 'disable-user-extensions':
                        uninstall(user, alias, extension)
                    elif action == 'replace-user-extensions':
                        update(user, alias, extension)
                    result.update({extension: {'status': 'OK'}})
                    ok += 1
                except (ValueError, ClSelectExcept.ExternalProgramFailed) as err:
                    result.update(
                        {extension: {'status': 'ERROR', 'message': str(err)}})
                    error += 1
    except (BaseClSelectException, extensions.PyPIRpcApiError) as err:
        clprint.print_diag(fmt, {'status': 'ERROR', 'message': str(err)})
        sys.exit(1)
    except NotSupported:
        clprint.print_diag(fmt, {'status': 'ERROR', 'message': 'Python selector not supported for %s' % CP_NAME})
        sys.exit(1)
    except Exception as err:
        msg = traceback.format_exc()
        clprint.print_diag(fmt, {'status': 'ERROR', 'message': msg})
        sys.exit(1)

    if not result and print_summary:
        result = summary(user)

    if error and ok:
        status = 'PARTIAL'
        exit_status = 2
    elif error:
        status = 'ERROR'
        exit_status = 5
    else:
        if ext_list and ok < 2:
            if print_summary:
                clprint.print_data(fmt, summary(user))
            else:
                clprint.print_data(fmt, {})
        else:
            clprint.print_data(fmt, result)
        sys.exit(0)
    message = '\n'.join(
        '%s: %s' % (k, v.get('message', v.get('status', '')))
        for k, v in iteritems(result))
    clprint.print_diag(fmt, {'status': status, 'message': message})
    sys.exit(exit_status)


def _glob_users(user='*'):
    """
    Return filtered control panels users
    :param user:
    :return:
    """
    return [user_name for user_name in cpusers() if fnmatch.fnmatch(user_name, user)]


def update_interpreter(user='*', version=('2.7', '3.3', '3.4'), app_name='*', verbose=True):
    if detect.is_plesk():
        sys.stderr.write("WARNING: Update interpreter with Python selector not supported on %s, skipped\n" % CP_NAME)
        return

    alt_interpreters_dict = interpreters.interpreters(key='version')  # obtain data about installed alt-python
    is_da_panel = detect.detect_DA_admin()
    apps_manager = ApplicationsManager()
    for user_name in _glob_users(user):
        if is_da_panel and utils.user_should_be_skipped(user_name):
            continue
        if not has_virtenv_dir(user_name):
            continue

        # change uid/gid to user_name
        user_pwd = pwd.getpwnam(user_name)
        real_uid = os.getuid()
        real_gid = os.getgid()
        os.setregid(user_pwd.pw_gid, real_uid)
        os.setreuid(user_pwd.pw_uid, real_gid)
        # turns off quota
        secureio.set_capability()

        # get users apps from selector json config
        for app_name_, data in iteritems(apps_manager.get_user_config_data(user_name)):
            if not fnmatch.fnmatch(app_name_, app_name):  # filtering application name
                continue
            try:
                environment = _get_environment(user_name, app_name_, apps_manager=apps_manager)
                env_python_ver = environment.interpreter().version
                if env_python_ver not in version:  # filtering virtual environment python version
                    continue
                if verbose:
                    print('Updating user: "%s"; application: "%s"...' % (user_name, app_name_))
                update_result = environment.update_python_interpreter(backup=True, verbose=verbose, force=False,
                                                                      _alt_interpreters_dict=alt_interpreters_dict)
                if update_result:  # restart application only if updating success
                    try:
                        # do not worry, stopped apps will not be started
                        # see restart method for details
                        restart(user_name, app_name_)
                    except (OSError, IOError) as e:
                        if verbose:
                            print('Failed to restart application "%s"; %s' % (app_name_, str(e)))
            except ClSelectExcept.InterpreterError as e:
                if verbose:
                    print('Failed updating user: "%s"; application: "%s"; %s' % (user_name, app_name_, str(e)))

        # restore original uid/gid
        os.setuid(real_uid)
        os.setgid(real_gid)

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