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File Name : 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 packaging.version import Version
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 = "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
"""

WSGI_TEMPLATE_PY12_PLUS = r"""import importlib.machinery
import importlib.util
import os
import sys

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

def load_source(modname, filename):
    loader = importlib.machinery.SourceFileLoader(modname, filename)
    spec = importlib.util.spec_from_file_location(modname, filename, loader=loader)
    module = importlib.util.module_from_spec(spec)
    loader.exec_module(module)
    return module

wsgi = 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>.+)")

WSGI_PATTERN_PY12_PLUS = re.compile(
    r"wsgi = load_source$'wsgi', '(?P<script>.+)'$\s+"
    r"application = wsgi\.(?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 = {
        "python_version": version,
        "app_version": PythonAppFormatVersion.STABLE,
        "domain": domain_name,
        "app_uri": alias,
        "app_status": DEFAULT_APP_STATE,
        "startup_file": startup_file,
        "config_files": [],
        "env_vars": env_vars,
        "entry_point": entry_point,
    }
    if passenger_log_file:
        app_data["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:
        webapp_url = utils.transform_wildcard_url(webapp_url)
        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)
    environment = _get_environment(user, directory)
    version = environment.interpreter().version
    if Version(version) >= Version("3.12"):
        template = WSGI_TEMPLATE_PY12_PLUS
    else:
        template = WSGI_TEMPLATE
    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, 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)
            version = environment.interpreter().version
            if Version(version) >= Version("3.12"):
                pattern = WSGI_PATTERN_PY12_PLUS
            else:
                pattern = WSGI_PATTERN
            match = 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)

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2026-03-25 10:33:49
..	dir	-	root/root	0755	2026-03-25 10:33:49
__pycache__	dir	-	root/root	0755	2026-03-25 11:11:58
baseclselect	dir	-	root/root	0755	2026-03-25 10:33:49
clselectnodejs	dir	-	root/root	0755	2026-03-25 10:33:49
clselectnodejsuser	dir	-	root/root	0755	2026-03-25 10:33:49
clselectphp	dir	-	root/root	0755	2026-03-25 10:33:49
clselectphpuser	dir	-	root/root	0755	2026-03-25 10:33:49
clselectpython	dir	-	root/root	0755	2026-03-25 10:33:49
clselectpythonuser	dir	-	root/root	0755	2026-03-25 10:33:49
clselectruby	dir	-	root/root	0755	2026-03-25 10:33:49
__init__.py	text/x-script.python	536 B	root/root	0644	2026-02-26 03:36:05
clextselect.py	text/x-script.python	19.61 KB	root/root	0644	2026-02-26 03:36:05
clpassenger.py	text/x-script.python	26.52 KB	root/root	0644	2026-02-26 03:36:05
clselect.py	text/x-script.python	21.96 KB	root/root	0644	2026-02-26 03:36:05
clselectctl.py	text/x-script.python	9.15 KB	root/root	0644	2026-02-26 03:36:05
clselectctlnodejsuser.py	text/x-script.python	20.66 KB	root/root	0644	2026-02-26 03:36:05
clselectctlphp.py	text/x-script.python	45.25 KB	root/root	0644	2026-02-26 03:36:05
clselectctlpython.py	text/x-script.python	44.75 KB	root/root	0644	2026-02-26 03:36:05
clselectctlruby.py	text/x-script.python	18.59 KB	root/root	0644	2026-02-26 03:36:05
clselectexcept.py	text/x-script.python	10.22 KB	root/root	0644	2026-02-26 03:36:05
clselectprint.py	text/x-script.python	5.39 KB	root/root	0644	2026-02-26 03:36:05
clselectstatistics.py	text/x-script.python	6.51 KB	root/root	0644	2026-02-26 03:36:05
cluserextselect.py	text/x-script.python	16.54 KB	root/root	0644	2026-02-26 03:36:05
cluseroptselect.py	text/x-script.python	23.65 KB	root/root	0644	2026-02-26 03:36:05
cluserselect.py	text/x-script.python	30.7 KB	root/root	0644	2026-02-26 03:36:05
locked_extensions.ini	text/plain	1.2 KB	root/root	0644	2026-02-26 03:36:05
models.py	text/x-script.python	815 B	root/root	0644	2026-02-26 03:36:05
utils.py	text/x-script.python	16.22 KB	root/root	0644	2026-02-26 03:36:05

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