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File name : dynamicuictl.py

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#!/opt/cloudlinux/venv/bin/python3 -bb
# -*- 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 division
from __future__ import absolute_import
import getopt
import glob
import os
import re
import subprocess
import sys
from typing import Dict  # NOQA

import simplejson as json
from packaging.version import Version

from clselect.utils import file_writelines, file_readlines, file_write, \
    file_read, grep
from clcommon.ui_config import UIConfig

NAME = os.path.basename(sys.argv[0])
THEMES_LOCATION = '/usr/local/cpanel/base/frontend'

sync_association = (
    # None is given to hide old resource usage
    # cPane config          dynamicui       0 - not inverse cPane config value
    # key name              key name        1 - inverse cPane config value
    # 1 - show
    # 0 - hide
    ('hideRubyApp',   'lverubysel',   1),
    ('hidePythonApp', 'lvepythonsel', 1),
    ('hideNodeJsApp', 'lvenodejssel',    1),
    ('hideLVEUserStat', 'lveresusage', 1),
    ('hidePhpApp',   'lvephpsel',    1),
    ('hideXrayApp',   'lvexray',    1),
    ('hideAccelerateWPApp',   'lvewpos',    1),
    (None, 'enduserlve', 1),  # for x3 theme
    (None, 'cpu_and_concurrent_connection_usage', 1)  # for paper lantern theme
)

def usage():
    print('Usage: %s [-h] [--show dynamicui_key1[,dynamicui_key2..]] [--hide dynamicui_key1[,dynamicui_key2..]]' % NAME)
    print('[--sync-conf conf_key1[,conf_key2..]] [--no-rebuild-sprites]')
    print('Options:')
    print(' -h | --help          :print this message')
    print(' -v | --verbose       :detail output actions')
    print(' --fix-dynamicui      :fix new json-style dynamicui.conf')
    print(' --sync-conf          :sync with dynamicui configs')
    print('           supported keys: all, %s' % ' '.join([k_[0] for k_ in sync_association if isinstance(k_[0], str)]))
    print(' --show dynamicui_key1[,dynamicui_key2..] \n'
          '                      :show app[s] in cPanel web-interface for user')
    print(' --hide dynamicui_key1[,dynamicui_key2..] \n'
          '                      :hide app[s] in cPanel web-interface for user')
    print(' --path PATH          :path to specific dynamicui config file')
    print(' --no-rebuild-sprites :don\'t rebuild sprites after patching dynamicui configs')
    print(' Association:')
    print(' conf_key\t\tdynamicui_key')
    for c1, c2, _ in sync_association:
        print(' %s\t%s' % (c1, c2))
    print('')
    print(' Examples:')
    print(' %s --hide=lverubysel --hide=lvepythonsel --show=enduserlve' % NAME)
    print(' %s --hide=lverubysel,lvepythonsel --show=enduserlve' % NAME)
    print(' %s --sync-conf all --no-rebuild-sprites' % NAME)
    print(' %s --sync-conf hideRubyApp, hidePythonApp' % NAME)

# add support function "any" for python 2.4
if 'any' not in globals():
    def any(iterable):
        """
        backported buildin function "any" for python 2.4

>>> any([False, False, False])
        False
        >>> any([True, False, False])
        True

:param iterable:
        :return boll:
        """
        for element in iterable:
            if element:
                return True
        return False

def parse_json_with_comments(text, **kwargs):
    """
    Parse json file with comments
    """
    regex_str = r'\s*(#|\/{2}).*$'
    REGEX_COMMENT = re.compile(regex_str)
    REGEX_LINE_COMMENT = re.compile(r"^" + regex_str, re.IGNORECASE)
    REGEX_INLINE = re.compile(r'(:?(?:\s)*([A-Za-z\d\.{}]*)|((?<=\").*\"),?)(?:\s)*(((#|(\/{2})).*)|)$')

lines = text.split('\n')

for index, line in enumerate(lines):
        if REGEX_COMMENT.search(line):
            if REGEX_LINE_COMMENT.search(line):
                lines[index] = ""
            elif REGEX_INLINE.search(line):
                lines[index] = REGEX_INLINE.sub(r'\1', line)

# remove trailing comma
    output = "\n".join(lines)
    output = re.sub(r",[ \t\r\n]*}", "}", output)
    output = re.sub(r",[ \t\r\n]*\]", "]", output)

try:
        return json.loads(output, **kwargs)
    except ValueError:
        return None

def fix_json_format(path):
    """
    Fix json format conf file. Remove remove old-style lines
    :param: `str` path: path to config file
    """
    if not os.path.isfile(path):
        return None

# skip files with old-style config values
    if grep('^description=>', path):
        return False

# clean old format lines from file
    try:
        f = open(path)
        output_lines = []
        for line in f:
            line = line.rstrip("\n")
            directive = DynUiLine(line)
            if not directive.get_string():
                # don`t add old-style line to file
                output_lines.append(line)
    except IOError:
        return None
    else:
        f.close()

# update conf file
    try:
        f = open(path, "w")
        f.write("\n".join(output_lines))
    except IOError:
        return None
    else:
        f.close()

return 0

class DynUiLine(object):
    """
    """
    key_types = {'skipobj': int}

def __init__(self, line):
        """
        Constructor
        """
        self.line = line.strip()
        self.line_parsed_ = self.pars_directives()

def pars_directives(self):
        """
        Parse line "self.line" and return parsed data
        :return list: return parsed structure; for future manipulation
        """
        line_parsed_ = list()
        line = self.line
        for l_ in line.split(','):
            if l_.count('=>') != 1:
                continue
            key_, val_ = list(map(str.strip, l_.split('=>', 1)))  # parse and clear line like "key=>val"
            type_converter = self.key_types.get(key_)
            if type_converter:
                try:
                    val_ = type_converter(val_)
                except ValueError:
                    pass
            line_parsed_.append([key_, val_])
        return line_parsed_

def has_dir(self, key, val=None):
        """
        Check if directive present
        :param str key: directive name
        :param str|None val: directive value; if value is None value not check
        :return bool: return True if directive present  [and value] present
        """
        for key_, val_ in self.line_parsed_:
            if key_ == key:
                if (val is None) or (val == val_):
                    return True
        return False

def del_dir(self, key):
        """
        Delete directive
        :param str key: directive name need delete
        :return bool: return True if directive was deleted
        """
        was_deleted = False
        for index_, (key_, _) in enumerate(self.line_parsed_):
            if key_ == key:
                del self.line_parsed_[index_]
                was_deleted = True
        return was_deleted

def set_dir(self, key, val):
        """
        Change or create directive
        :param str key: directive name
        :param str|int val: directive value
        :return bool: return True if change or create directive is success; False if not need change
        """
        for index_, (key_, val_) in enumerate(self.line_parsed_):
            if key == key_:
                if val != val_:
                    self.line_parsed_[index_][1] = val
                    return True
                else:
                    return False

# add directive if not present
        self.line_parsed_.append([key, val])
        return True

def get_string(self):
        """
        Generate and return raw string after manipulations
        :return str: return line after manipulations
        """
        return ','.join(['=>'.join(map(str, key_val_)) for key_val_ in self.line_parsed_])

def hide_object(self, file_=None):
        """
        Modify directives to hide object
        :param str|None file_: file name that need hide
        :return bool: return true if state was changed
        """
        if self.has_dir('file', file_):  # append directive "skipobj=>1" to line
            if len(self.line_parsed_) >= 2:
                return self.set_dir('skipobj', 1)
        return False

def show_object(self, file_=None):
        """
        Modify directives to show object
        :param str|None file_: file name that need hide
        :return bool: return true if state was changed
        """
        if self.has_dir('file', file_):
            if len(self.line_parsed_) > 2:  # detect directive "skipobj=>1" or "skipobj=>0" and delete them
                return self.del_dir('skipobj')
            elif len(self.line_parsed_) == 2:
                if self.has_dir('skipobj'):  # detect line "file=>some_name,skipobj=>1" and delete all line
                    self.line_parsed_ = list()
                    return True
        return False

def patch_dynamicui(path, app_show=None, app_hide=None, verbose=False):
    """
    patching dynamicui.conf for add or delete direcitve 'skipobj=>1' in line
    :param str path: path to dynamicui config file
    :param list app_show: list apps to show in web-interface; delete directive 'skipobj=>1' in line
    :param list app_hide: list apps to hide in web-interface; add directive 'skipobj=>1' in line
    :return: `dict` {app: True,...} | None
    """
    app_show = app_show or list()
    app_hide = app_hide or list()
    file_was_patched = False
    patched_apps = set()
    dynamicui_lines = file_readlines(path)
    for line_index, line in enumerate(dynamicui_lines):
        if line.lstrip('\n').startswith('#'):  # ignoring line with comments
            continue

line = line.rstrip('\n')
        directives = DynUiLine(line)
        if not directives.line:
            continue

line_was_patched = False
        for app_name in app_show:
            if directives.has_dir('file', app_name):
                patched_apps.add(app_name)
                if directives.show_object(app_name):
                    line_was_patched = True
                break

for app_name in app_hide:
            if directives.has_dir('file', app_name):
                patched_apps.add(app_name)
                if directives.hide_object(app_name):
                    line_was_patched = True
                break

# line_was_patched = any(map(directives.show_object, app_show) + map(directives.hide_object, app_hide))
        if line_was_patched:
            dynamicui_lines[line_index] = directives.get_string() + '\n'
            file_was_patched = True

if file_was_patched:
        file_writelines(path, dynamicui_lines, 'w')
        if verbose:
            print('%s: file %s was patched' % (NAME, path))

else:
        if verbose:
            print('%s: file %s was skiped, not need to patch' % (NAME, path))

return patched_apps

def patch_json_dynamicui(path, app_show, app_hide, verbose=False):
    """
    Patch dynamicui.conf file in json format
    :param: `str` path: path to dynamicui config file
    :param: `list` app_show: list apps to show in web-interface; delete key 'skipobj'
    :param: `list` app_hide: list apps to hide in web-interface; add key 'skipobj: 1'
    :return: `dict` {app: True,...} | None
    """
    # clean json format file for valid parse json
    conf = parse_json_with_comments(file_read(path))

if conf is None:
        if verbose:
            print('%s: file %s was skipped because contains invalid JSON format'
                  % (NAME, path))

return None

file_was_patched = False
    patched_apps = set()
    file_items = []
    for item in conf:
        app_name = item.get("file")
        if app_name in app_show:
            item.pop("skipobj", None)
            file_was_patched = True
            patched_apps.add(app_name)
        elif app_name in app_hide:
            item["skipobj"] = 1
            file_was_patched = True
            patched_apps.add(app_name)

file_items.append(item)

# add unexists items with skipobj key
    # non_patched_hide_app = set(app_hide).difference(patched_apps)
    # if non_patched_hide_app:
    #     file_was_patched = True
    #     for app_name in non_patched_hide_app:
    #         file_items.append({"name": app_name, "file": app_name, "skipobj": 1})
    #         patched_apps.add(app_name)

if file_was_patched:
        # https://stackoverflow.com/questions/18337407/saving-utf-8-texts-in-json-dumps-as-utf8-not-as-u-escape-sequence
        file_write(path, json.dumps(file_items, indent=4, ensure_ascii=False).encode('utf8'), mode='wb')
        if verbose:
            print('%s: file %s was patched' % (NAME, path))

else:
        if verbose:
            print('%s: file %s was skiped, not need to patch' % (NAME, path))

return patched_apps

def patch_dynamicui_wrapper(path, app_show=None, app_hide=None, verbose=False,
                            is_json_format=False):
    """
    Wrapper for patch dynamicui config file.
    Catch base exceptions and print base messages
    """
    path = os.path.abspath(path)
    if os.path.isfile(path) and not os.path.islink(path):
        try:
            # detect file format
            json_format = is_json_format and not grep('^description=>', path)
            if json_format:
                return patch_json_dynamicui(path, app_show, app_hide, verbose)
            else:
                return patch_dynamicui(path, app_show, app_hide, verbose)
        except IOError as e:
            if verbose:
                print('%s: %s' % (NAME, str(e)))
    else:
        if verbose:
            print('%s: file %s not present, skip' % (NAME, path))

return None

def patch_themes(themes_dir_list, app_show, app_hide, verbose=False,
                 is_json_format=False):
    """
    Patch dynamicui configuration files for all themes
    """
    for theme_path in themes_dir_list:
        # set of patched apps of current theme
        patched_set = set()

# first change additional configs
        for app_name in (app_hide + app_show):
            dynamicui_conf_path = os.path.join(theme_path, 'dynamicui', 'dynamicui_%s.conf' % app_name)
            if app_name in app_hide:
                res = patch_dynamicui_wrapper(dynamicui_conf_path, app_hide=[app_name], verbose=verbose)
                patched_set |= (res or set())
            elif app_name in app_show:
                res = patch_dynamicui_wrapper(dynamicui_conf_path, app_show=[app_name], verbose=verbose)
                patched_set |= (res or set())

# now filter all patched apps from start lists
        not_patched_app_show = list(sorted(set(app_show).difference(patched_set)))
        not_patched_app_hide = list(sorted(set(app_hide).difference(patched_set)))

# check is all application was patched or no
        if not len(not_patched_app_show) and not len(not_patched_app_hide):
            continue

# next step change main config if need patch anything
        dynamicui_conf_path = os.path.join(theme_path, 'dynamicui.conf')
        patch_dynamicui_wrapper(dynamicui_conf_path, not_patched_app_show,
                                not_patched_app_hide, verbose, is_json_format)

def load_json_conf(verbose=False, key_filter=None):
    """
       Loading config from UI config file
       value must be only False or True
       :param verbose: detailed output enabled
       :param key_filter: keys to be filtered output dict
       :return dict:
       """
    key_filter = key_filter or list()
    output_dict = dict()
    parsed_config = UIConfig().get_param('uiSettings')
    if parsed_config:
        for key, value in parsed_config.items():
            if key not in key_filter:
                continue
            try:
                output_dict.update({key: value})
            except ValueError:
                if verbose:
                    print('WARNING: incorrect key "%s" in UI config file, skipped;'
                          ' value must be True or False' % key)
    # add selector`s status config to result dict
    sync_selector_setting(output_dict, 'hideNodeJsApp')
    sync_selector_setting(output_dict, 'hidePythonApp')
    sync_selector_setting(output_dict, 'hidePhpApp')
    return output_dict

def sync_selector_setting(external_conf, plugin_flag):
    # type: (Dict, str) -> ()
    """
    Adds value of selector status to cpanel config
    :param external_conf: dict with cpanel config values
    :param plugin_flag: plugin's flag name
    """
    try:
        if plugin_flag == 'hideNodeJsApp':
            from clselect.clselectnodejs.node_manager import NodeManager
            m = NodeManager()
        elif plugin_flag == 'hidePythonApp':
            from clselect.clselectpython.python_manager import PythonManager
            m = PythonManager()
        elif plugin_flag == 'hidePhpApp':
            from clselect.clselectphp.php_manager import PhpManager
            m = PhpManager()
        else:
            raise NotImplementedError()
        external_conf[plugin_flag] = not m.selector_enabled
    except ImportError:
        external_conf[plugin_flag] = False
    except Exception as e:
        external_conf[plugin_flag] = False
        print(e)

def sync_conf(themes_dir_list,
              sync_association=sync_association, key_filter=None, verbose=False,
              is_json_format=False):
    app_hide = list()
    app_show = list()
    conf = load_json_conf(verbose=verbose, key_filter=key_filter)
    # generate 'app_show' and 'app_hide' app list
    for key_, app_name, reverse_boolean in sync_association:
        val_ = conf.get(key_)
        if key_ is None:
            app_hide.append(app_name)  # if key_ is None then hide the app
        if val_ is None:
            continue
        if reverse_boolean:
            val_ = not val_
        if val_ is True:
            app_show.append(app_name)
        elif val_ is False:
            app_hide.append(app_name)

patch_themes(themes_dir_list, app_show, app_hide, verbose, is_json_format)

def main(args=None):
    try:
        opts, _ = getopt.getopt(args or sys.argv[1:], 'h:v',
                                ['show=', 'hide=', 'path=', 'sync-conf=',
                                'no-rebuild-sprites', "fix-dynamicui", 'verbose',
                                'help'])
    except getopt.GetoptError as err:
        print(str(err))
        usage()
        sys.exit(2)

fix_dynamicui = False
    verbose = False
    app_show = list()
    app_hide = list()
    dynamicui_conf_path = None
    rebuild_sprites = True
    sync = list()
    for o, _ in opts:
        if o in ('-h', '--help'):
            usage()
            sys.exit()
        elif o == '--show':
            app_show.extend(_.split(','))
        elif o == '--hide':
            app_hide.extend(_.split(','))
        elif o == '--path':
            dynamicui_conf_path = _
        elif o == '--fix-dynamicui':
            fix_dynamicui = True
        elif o == '--sync-conf':
            if _ == 'all':
                sync = [k_[0] for k_ in sync_association]
            else:
                sync.extend(_.split(','))
        elif o == '--no-rebuild-sprites':
            rebuild_sprites = False
        elif o in ('--verbose', '-v'):
            verbose = True
        else:
            usage()
            sys.exit(2)

if fix_dynamicui:
        for path in glob.glob(os.path.join(THEMES_LOCATION, '*')):
            if os.path.isdir(path) and not os.path.islink(path):
                fix_json_format(os.path.join(path, "dynamicui.conf"))
        return 0

if len(app_show + app_hide) == 0 and not sync:
        usage()
        sys.exit(2)

# checking the uniqueness of values in the 'app_show' and 'app_hide'
    if len(set(app_show + app_hide)) != len(app_show + app_hide):
        print("ERROR: Application names in options '--show' and '--hide' should not be repeated")
        sys.exit(2)

# get CP version
    import cldetectlib as detect
    detect.getCP()
    if detect.CP_NAME != 'cPanel':
        print('WARNING: Unsupported control panel, this script works only on cPanel. Exiting.')
        sys.exit(2)

is_json_format = Version(detect.CP_VERSION) >= Version("54.0")

if dynamicui_conf_path:
        patch_dynamicui_wrapper(dynamicui_conf_path, app_show, app_hide, verbose,
                                is_json_format)
        return

# list cPanel themes directories, without directories links
    themes_dir_list = [path for path in glob.glob(os.path.join(THEMES_LOCATION, '*'))
                       if os.path.isdir(path) and not os.path.islink(path)]
    if sync:
        sync_conf(themes_dir_list, verbose=verbose, key_filter=sync,
                  is_json_format=is_json_format)

patch_themes(themes_dir_list, app_show, app_hide, verbose, is_json_format)
    if rebuild_sprites:
        if verbose:
            print('%s: rebuilding sprites in background' % NAME)
        if os.path.exists('/usr/local/cpanel/bin/sprite_generator'):
            subprocess.run("/usr/local/cpanel/bin/sprite_generator  --all > /dev/null 2>&1 &",
                           shell=True, executable='/bin/bash')
        else:
            subprocess.run("/usr/local/cpanel/bin/rebuild_sprites -cponly -quiet > /dev/null 2>&1 &",
                           shell=True, executable='/bin/bash')

if __name__ == '__main__':
    main()

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