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cl_selector_arg_parse.py

# -*- coding: utf-8 -*-
# Command line arguments parser for cloudlinux-selector utility

# cloudlinux-license Utility to check/set Cloudlinux license
#
# 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 absolute_import
from __future__ import print_function
from __future__ import division
import json
import os
from docopt import docopt
from docopt import DocoptExit
from schema import Schema, And, Use, Or, SchemaError
from .selectorlib import CloudlinuxSelectorLib

NODEJS = 'nodejs'
PYTHON = 'python'
RUBY = 'ruby'
PHP = 'php'

def _ensure_command_allowed(interpreter, args, as_from_root, selector_status):
    """
    Do some additional checks to restrict commands not available for current
    user or interpreter or whatever and do this only after args parsing
    """
    if not as_from_root and any([
        args["install-version"],
        args["uninstall-version"],
        args["enable-version"],
        args["disable-version"],
    ]):
        raise SchemaError(
            None, 'This command should be run from administrator only')

if interpreter != NODEJS and any([
        args["change-version-multiple"],
    ]):
        raise SchemaError(None, 'This command is supported only for NodeJS')

if interpreter != PYTHON and any([
        args["import-applications"],
        args["migrate"],
        args["uninstall-modules"],
    ]):
        raise SchemaError(None, 'This command is supported only for Python')

if interpreter not in (NODEJS, PYTHON) and any([
        args["enable-version"],
        args["disable-version"],
        args["create"],
        args["read-config"],
        args["save-config"],
        args["install-version"],
        args["uninstall-version"],
        args["start"],
        args["restart"],
        args["stop"],
        args["destroy"],
        args["install-modules"],
        args["run-script"],
    ]):
        raise SchemaError(None, 'This command is supported only for NodeJS and Python')

if interpreter != PHP and (args["make-defaults-config"] or args['setup']):
        raise SchemaError(None, 'This command is supported only for %s' % PHP)

if not as_from_root and any([
        args['make-defaults-config'],
        args['setup'],
        args['--selector-status'],
        args['--default-version'],
        args['--supported-versions']
    ]):
        raise SchemaError(None, 'Specified option(s) only for root')

if interpreter != PYTHON and any([
        args["--entry-point"]
    ]):
        raise SchemaError(None, 'This options(s) only for Python')

if interpreter in (NODEJS, PYTHON) and not args['get'] and not selector_status and not _run_from_admin():
        raise SchemaError(None, 'Selector is disabled')

def _run_from_admin():
    """
    Check who is owner of the parent process.
    if owner is root - return True
    if parent process can't be found - return True
    :return:
    """
    try:
        return os.stat(os.path.join('/proc/', str(os.getppid()))).st_uid == 0
    except OSError:
        return True

def parse_cloudlinux_selector_opts(argv, _is_json_need=False,
                                   as_from_root=True):
    """
    Parse arguments for cloudlinux-selector command
    :param argv: sys.argv
    :param _is_json_need: sys.argv contains --json key
    :param as_from_root: True if we assume that root has called this util
    :return cortege: (error_flag, s_message)
    """
    # program name
    prog_name = "cloudlinux-selector"
    docstring = """Utility to get/set Cloudlinux selector options

Usage:
   {0} [get] [--json] [--interpreter <str>] [(--get-supported-versions | --get-default-version | --get-selector-status)] [(--user <str> | --domain <str>)]
   {0} get [--json] [--interpreter <str>] [--get-current-version] [--user <str>]
   {0} set [--json] [--interpreter <str>] (--selector-status <enabled,disabled> | --default-version <str> | --supported-versions <str> | --current-version <str>) [--user <str>]
   {0} set [--json] [--interpreter <str>] --version <str> (--extensions <str> | --options <str>) [--user <str>]
   {0} set [--json] [--interpreter <str>]  [(--user <str> | --domain <str>)] --app-root <str> [--app-mode <str>] [--new-app-root <str>] [--new-domain <str>] [--new-app-uri <str>] [--new-version <str>] [--startup-file <str>] [--env-vars <str>] [--skip-web-check] [--entry-point <str>] [--config-files <str>] [--passenger-log-file <str>]
   {0} create [--json] [--interpreter <str>] [(--user <str> | --domain <str>)] --app-root <str> --app-uri <str> [--version <str>] [--app-mode <str>] [--startup-file <str>] [--entry-point <str>] [--env-vars <str>] [--passenger-log-file <str>]
   {0} set [--json] [--interpreter <str>]  --reset-extensions --version <str> [--user <str>]
   {0} (enable-version | disable-version) [--json] [--interpreter <str>] --version <str>
   {0} install-modules [--json] [--interpreter <str>] [(--user <str> | --domain <str>)] --app-root <str> [(--requirements-file <str> | --modules <str>)] [--skip-web-check]
   {0} uninstall-modules [--json] [--interpreter <str>] [(--user <str> | --domain <str>)] --app-root <str> --modules <str>
   {0} install-version [--json] [--interpreter <str>] --version <str>
   {0} uninstall-version [--json] [--interpreter <str>] --version <str>
   {0} read-config [--json] [--interpreter <str>]  [(--user <str> | --domain <str>)] --app-root <str> --config-file <str>
   {0} save-config [--json] [--interpreter <str>]  [(--user <str> | --domain <str>)] --app-root <str> --config-file <str> --content <str>
   {0} (start | restart | stop | destroy) [--json] [--interpreter <str>]  [(--user <str> | --domain <str>)] --app-root <str>
   {0} run-script [--json] [--interpreter <str>] [(--user <str> | --domain <str>)] --app-root <str> --script-name <str>
   {0} run-script [--json] [--interpreter <str>] [(--user <str> | --domain <str>)] --app-root <str> --script-name <str> -- <script_args>...
   {0} change-version-multiple --json --interpreter <str> --from-version <str> --new-version <str>
   {0} make-defaults-config [--json] [--interpreter <str>]
   {0} import-applications [--json] --interpreter <str>
   {0} migrate [--json] --interpreter <str> --user <str> --app-root <str>
   {0} setup [--json] --interpreter <str>
   {0} (-h | --help)

Options:
    --json                               Return data in JSON format.
    --interpreter <str>                  One of php/nodejs/python, default is php
    --get-supported-versions             Return info about supported versions
    --get-current-version                Return current version of interpretator for user
    --get-default-version                Return info about default version only
    --get-selector-status                Return info about selector status
    --reset-extensions                   Replace user extensions with version default extensions
    --supported-versions <str>           Set supported versions of interpreter
    --default-version <str>              Set default version of interpreter
    --current-version <str>              Set alternative as user default
    --selector-status <enabled|disabled> Set selector status enabled or disabled
    --version <str>                      Version of interpreter
    --extensions <str>                   JSON dict with extensions and their status
    --options <str>                      JSON dict with options and their values
    --user <str>                         Username to operate on
    --app-root <str>                     Root of an application to be created
    --domain <str>                       Domain to work in
    --app-uri <str>                      URI path to get the application being created
    --config-file <str>                  path to config file to be read or saved
    --config-files <str>                 names of config files (such as requirements.txt or etc) (only for python interpreter)
    --content <str>                      Base64-encoded config file contents to be saved
    --app-mode <str>                     Application mode
    --startup-file <str>                 Startup application file
    --env-vars <str>                     Environment variable as json string
    --new-app-root <str>                 Set new application directory
    --new-app-uri <str>                  Set new application uri
    --new-domain <str>                   Set new domain for application
    --new-version <str>                  Set new nodejs version for application
    --from-version <str>                 Old NodeJS version for group change version operations
    --script-name <str>                  Command for an npm script to be run
    --skip-web-check                     Skip check web application after change it's properties
    --entry-point <str>                  Use the specified entrypoint for application (only for python interpeter)
    --requirements-file <str>            Use the specified file for install required modules
    --modules <str>                      Install comma-separated list of modules
    --passenger-log-file <str>           Set passenger log full filename
    -h, --help                           Show this help message and exit
""".format(prog_name)
    try:
        args = docopt(docstring, argv)
    except DocoptExit:
        s_error_string = 'ERROR: Invalid parameter passed'
        if not _is_json_need:
            s_error_string += "\n\n" + docstring
        return False, s_error_string

interpreter = args.get('--interpreter')

def _convert_version(x):
        """For the NodeJS, ignore all the version parts except the major one"""
        parts = x.split('.')
        if interpreter == NODEJS:
            return str(int(parts[0]))
        if interpreter == PYTHON:
            ver = x
            if len(parts) == 3:
                ver = x.rsplit('.', 1)[0]
            return ver
        return float(x)     # keep old behavior for PHP

_version_validator = Or(None, And(str, lambda x: x == "native"), And(str, Use(_convert_version)),
                        error="Version must be Interpreter version number or native")

def _json_string_to_dict(s_json):
        j_dict = json.loads(s_json)
        # json.loads in some cases returns a string instead dictionary.
        # So try to get keys to ensure that j_dict really dictionary
        list(j_dict.keys())
        return j_dict

s_json_error = '%s option should contain a valid JSON'
    s = Schema({
        "get": bool,
        "set": bool,
        "import-applications": bool,
        "migrate": bool,
        "create": bool,
        "read-config": bool,
        "enable-version": bool,
        "disable-version": bool,
        "save-config": bool,
        "install-modules": bool,
        "uninstall-modules": bool,
        "start": bool,
        "restart": bool,
        "stop": bool,
        "destroy": bool,
        "install-version": bool,
        "uninstall-version": bool,
        "run-script": bool,
        "change-version-multiple": bool,
        "make-defaults-config": bool,
        "setup": bool,
        "<script_args>": Or(None, list),
        "--": bool,
        "--json": bool,
        "--help": bool,
        "--interpreter": Or(None, PHP, PYTHON, RUBY, NODEJS),
        "--get-supported-versions": bool,
        "--get-current-version": bool,
        "--get-default-version": bool,
        "--get-selector-status": bool,
        "--reset-extensions": bool,
        "--supported-versions": Or(None, And(str, Use(_json_string_to_dict)),
                                   error=s_json_error % "--supported-versions"),
        "--default-version": _version_validator,
        "--current-version": _version_validator,
        "--selector-status": Or(None, And(str, lambda x: x in ["enabled", "disabled"]),
                                error="Selector status must be enabled or disabled"),
        "--version": _version_validator,
        "--extensions": Or(None, And(str, Use(_json_string_to_dict)),
                           error=s_json_error % "--extensions"),
        "--options": Or(None, And(str, Use(_json_string_to_dict)),
                           error=s_json_error % "--options"),
        "--user": Or(None, str),
        "--app-root": Or(None, str),
        "--domain": Or(None, str),
        "--app-uri": Or(None, str),
        "--config-file": Or(None, str),
        "--content": Or(None, str),
        "--app-mode": Or(None, str),
        "--startup-file": Or(None, And(str, lambda x: x != "package.json"),
                             error='Cannot set "package.json" as startup file'),
        "--env-vars": Or(None, str),
        "--config-files": Or(None, str),
        "--new-app-root": Or(None, str),
        "--new-app-uri": Or(None, str),
        "--new-domain": Or(None, str),
        "--new-version": Or(None, str),
        "--from-version": Or(None, str),
        "--script-name": Or(None, str),
        "--entry-point": Or(None, str),
        "--requirements-file": Or(None, str),
        "--modules": Or(None, And(str, lambda x: bool(x)),
                        error="modules should be a comma-separated list of packages"),
        "--skip-web-check": bool,
        "--passenger-log-file": Or(None, str)
    })

def _check_users_part_cli(_args):
        """
        Check args for existing of mandatory arguments
        :param _args: parsed arguments from command line
        :return: True if checking passed, False - not passed
        """
        if interpreter not in (NODEJS, PYTHON):
            return
        if as_from_root and any((
                _args['create'],
                _args['read-config'],
                _args['save-config'],
                _args['install-modules'],
                _args['uninstall-modules'],
                _args['stop'],
                _args['restart'],
                _args['start'],
                _args['destroy'],
                _args['run-script'],
        )) and not (_args['--user'] or _args['--domain']):
            raise SchemaError(None, 'Domain or user argument is mandatory while calling selector under root')

if args["--interpreter"] == PYTHON and args['--entry-point'] and not args['--startup-file']:
            raise SchemaError(None, '--entry-point option is requires --startup-file option for interpreter python')
        if args["--app-mode"] and args["--interpreter"] != NODEJS:
            raise SchemaError(None, '--app-mode option is requires only for interpreter nodejs')
        if args["--entry-point"] and args["--interpreter"] != PYTHON:
            raise SchemaError(None, '--entry-point option is requires only for interpreter python')

try:
        args = s.validate(args)
    except SchemaError as e:
        return False, str(e)

if not args['--json'] and not args['import-applications']:
        return False, "use --json option, other modes currently unsupported"

if interpreter is None or interpreter in (PHP, ):
        args["--interpreter"] = PHP
        selector_status = False
    elif interpreter in (RUBY,):
        msg = 'ruby interpreter currently unsupported. Use selectorctl instead'
        return False, msg
    elif interpreter in (PYTHON, NODEJS):
        lib = CloudlinuxSelectorLib(args["--interpreter"])
        selector_status = list(lib.get_selector_status().values())[0]
    try:
        _ensure_command_allowed(interpreter, args, as_from_root, selector_status)
        _check_users_part_cli(args)
    except SchemaError as e:
        return False, str(e)
    return True, args

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2025-12-18 06:03:01
..	dir	-	root/root	0755	2025-12-18 06:03:01
__pycache__	dir	-	root/root	0755	2025-12-18 06:03:34
__init__.py	text/x-script.python	408 B	root/root	0644	2025-11-28 02:51:58
cl_selector.py	text/x-script.python	40.35 KB	root/root	0644	2025-11-28 02:51:58
cl_selector_arg_parse.py	text/x-script.python	15.27 KB	root/root	0644	2025-11-28 02:51:58
clpassenger_detectlib.py	text/x-script.python	1.21 KB	root/root	0644	2025-11-28 02:51:58
selectorlib.py	text/x-script.python	75.41 KB	root/root	0644	2025-11-28 02:51:58

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