✏️ Editing: lspkgctl Read Only

#!/usr/bin/python3
import argparse
import common
import csv
import errno
import json
import logging
import os
import pwd
import re
import subprocess
import sys
import time
import glob

from stat import *
from subprocess import PIPE

def command_requires_pkg(command):
    return command in ['default', 'list', 'set', 'set-force', 'validate']

def validate_environment():
    common.ls_cl_ok()
    
def init_pgm():
    common.init_logging()
    parser = argparse.ArgumentParser(prog="lspkgctl",
                                     description='LiteSpeed Packages Control Program')
    parser.add_argument("command", type=str, help="The packages command", 
                        choices=['default', 'list', 'list-all', 'set', 'set-force', 'userpkg', 'usersize', 'validate', 'validate-all', 'version'])
    parser.add_argument("pkg", type=str, nargs='*', default=None, help="package name")
    parser.add_argument("--cpu", type=str, help="limit CPU access.  Specify a percentage of a complete core, 100 is 1 complete core.  Default is no limit (-1).")
    parser.add_argument("--io", type=str, help="limit I/O access.  Specify in bytes/sec.  Default is no limit (-1).")
    parser.add_argument("--iops", type=str, help="limit I/O access.  Specify in IOs per second.  Default is no limit (-1).")
    parser.add_argument('-l', '--log', type=int, help='set logging level, 10=Debug, 20=Info, 30=Warning, 40=Error.  Default is Info')
    parser.add_argument("--mem", type=str, help="limit virtual memory access.  Specify in bytes.  Default is no limit (-1).")
    parser.add_argument('-q', '--quiet', action='store_true', help='turns off all logging and only outputs what is requested.')
    parser.add_argument('-s', '--sleep', type=int, default=0, help="number of seconds to pause.  Should only be used when running in the background")
    parser.add_argument("--tasks", type=str, help="limit number of tasks.  Specify a maximum count of tasks that can be started.")
    parser.add_argument("--size", type=str, help="set redis package size.  Default is not defined (-1).")
    parser.add_argument("--user", type=str, help="the user to request the size for.  Required for the commands usersize and userpkg")
    args = parser.parse_args()
    if not args.quiet or args.log != None:
        if args.log != None:
            logging.getLogger().setLevel(args.log)
        else:
            logging.getLogger().setLevel(logging.INFO)
        logging.debug("Entering lspkgctl")

validate_environment()
    command = args.command
    if command_requires_pkg(command):
        if args.pkg == None:
            common.fatal_error("You must specify a package for the %s command" % command)
    if command == 'version':
        logging.info("Version: %s" % common.VERSION)
        if args.quiet:
            print(common.VERSION)
        sys.exit(0)
    if (command.startswith('set')) and (args.cpu == None and args.io == None and args.iops == None and args.mem == None and args.tasks == None and args.size == None):
        common.fatal_error("You specified command: %s and no qualifier to set with it" % command)
    if (command == 'usersize' or command == 'userpkg') and not args.user:
        common.fatal_error("You must specify a --user with the usersize or userpkg commands")
    if (args.sleep > 0):
        time.sleep(args.sleep)
    return args

def run_program(args, fail_reason = ""):
    logging.debug('run: ' + str(args))
    result = subprocess.run(args, stdout=PIPE, stderr=PIPE)
    if fail_reason != "" and result.returncode == 0:
        common.fatal_error('Expected: ' + args[0] + ' to fail: ' + fail_reason)
    if fail_reason == "" and result.returncode != 0:
        common.fatal_error('Error in running: ' + args[0] + ' errors: ' + result.stdout.decode('utf-8') + ' ' + result.stderr.decode('utf-8'))
    return result.stdout.decode('utf-8')

def initialized_pkg():
    pkg_json = {}
    pkg_json['uids'] = []
    return pkg_json

def read_pkg_sizes():
    pkg_sizes = {}
    try:
        f = open(common.get_package_size_file(), 'r', encoding="utf-8")
    except OSError as err:
        if err.errno == errno.ENOENT:
            logging.debug('File not found: %s' % common.get_package_size_file())
            return pkg_sizes
        logging.warning('Error opening %s: %s - reinitializing' % (common.get_package_size_file(), err.strerror))
        return pkg_sizes
    try:
        reader = csv.reader(f, delimiter=',', quotechar='"')
        for line in reader:
            logging.debug('package: [' + line[0] + ']: ' + line[1])
            pkg_sizes[line[0]] = line[1]
    except Exception as err:
        logging.warning('Error reading %s: %s - reinitialzing' % (common.get_package_size_file(), err))
        return pkg_sizes
    finally:
        f.close()
    return pkg_sizes

def write_pkg_sizes(pkg_sizes):
    try:
        f = open(common.get_package_size_file(), 'w', encoding="utf-8")
    except OSError as err:
        logging.warning('Error opening %s for write: %s' % (common.get_package_size_file(), err.strerror))
        return False
    try:
        writer = csv.writer(f, delimiter=',', quotechar='"')
        for pkg in pkg_sizes:
            logging.debug('package: [' + pkg + ']: ' + pkg_sizes[pkg])
            writer.writerow([pkg, pkg_sizes[pkg]])
    except Exception as err:
        logging.warning('Error writing %s: %s' % (common.get_package_size_file(), err))
        return False
    finally:
        f.close()
    return True

def read_pkg(pkg, pkg_sizes):
    try:
        f = open(common.pkg_to_filename(pkg), 'r', encoding="utf-8")
    except OSError as err:
        if err.errno == errno.ENOENT:
            logging.debug('File not found: %s' % common.pkg_to_filename(pkg))
            return initialized_pkg()
        logging.warning('Error opening %s: %s - reinitializing' % (common.pkg_to_filename(pkg), err.strerror))
        return initialized_pkg()
    try:
        pkg_json = json.load(f)
    except Exception as err:
        logging.warning('Error reading %s: %s - reinitialzing' % (common.pkg_to_filename(pkg), err))
        return initialized_pkg()
    finally:
        f.close()
    if not 'uids' in pkg_json:
        pkg_json['uids'] = []
    pkg_json['uids'].sort()
    if pkg in pkg_sizes:
        pkg_json['size'] = pkg_sizes[pkg]
    return pkg_json

def list_pkg(pkg, pkg_sizes):
    pkg_json = read_pkg(pkg, pkg_sizes)
    return pkg_json

def command_list(args, pkg_sizes, single_list=False):
    pkg_obj = {}
    if single_list or args.command == 'list':
        for pkg in args.pkg:
            pkg_obj[pkg] = list_pkg(pkg, pkg_sizes)
    else:
        pkgs = glob.glob(common.pkg_to_filename('*'))
        for f in pkgs:
            fileonly = os.path.basename(f)
            pkg = fileonly.split('.conf')[0]
            logging.debug('From file: %s, using pkg %s' % (f, pkg))
            pkg_obj[pkg] = list_pkg(pkg, pkg_sizes)
    final_json = {}
    final_json['packages'] = pkg_obj
    print(json.dumps(final_json, indent=4))
    return 0

def plesk_home_dict():
    home_dict = {}
    for user in common.getpwall():
        logging.debug('home_dict key: ' + user.pw_dir)
        home_dict[user.pw_dir] = user
    return home_dict

def read_pleskplans(plans):
    home_dict = plesk_home_dict()
    userplans = {}
    # Thanks to Stas Karpinsky of vangus.co.il for correcting the SQL!
    plan_lines = run_program(['plesk', 'db', \
                              "select sys_users.login, sys_users.home, " + \
                                "Templates.name from sys_users " +  \
                                "join hosting on sys_users.id = hosting.sys_user_id " + \
                                "join domains on hosting.dom_id = domains.id " + \
                                "join Subscriptions on domains.id = Subscriptions.object_id " + \
                                "and Subscriptions.object_type = 'domain' " + \
                                "join PlansSubscriptions on Subscriptions.id = PlansSubscriptions.subscription_id " + \
                                "join Templates on PlansSubscriptions.plan_id = Templates.id"])
    for line in plan_lines.splitlines():
        if line.startswith('+-') or line.startswith('| login'):
            continue
        pat = re.compile( r'\|\s(.*?)\s{1,}\|')
        matches = []
        pos = 0
        while pos < len(line):
            match = pat.search(line, pos)
            if match:
                logging.debug('Appending: %s in %s' % (match[1], line))
                pos = match.start() + 1
                matches.append(match[1])
            else:
                break
        if len(matches) != 3:
            for match in matches:
                logging.debug(match)
            common.fatal_error("Expected 3 matches in %s and got %d" % (line, len(matches)))
        if not matches[1] in home_dict:
            common.fatal_error("%s in user dictionary from %s" % (matches[1], line))
        plan = matches[2]
        user = home_dict[matches[1]]
        logging.debug("   add to %s: %s (%d)" % (plan, user.pw_name, user.pw_uid))
        if not plan in plans:
            plans[plan] = []
        plans[plan].append(user.pw_uid)
        userplans[user.pw_name] = plan
    return plans, userplans

def read_diskplans():
    plans = {}
    logging.debug("read_diskplans")
    if (os.path.exists(common.get_pkg_dir())):
        for f in glob.glob(common.get_pkg_dir() + '/*.conf'):
            finalfile = f[len(common.get_pkg_dir()) + 1:][:-5]
            logging.debug("Found package file: %s, finalfile: %s" % (f, finalfile))
            plans[finalfile] = []
    return plans

def read_usersplans():
    plans = read_diskplans()
    if common.get_plesk():
        return read_pleskplans(plans)
    userplans = {}
    planfiles = glob.glob('/var/cpanel/packages/*')
    for planfile in planfiles:
        if os.path.isfile(planfile):
            plan = os.path.basename(planfile)
            plans[plan] = []
            logging.debug("Check package: %s" % plan)
    try:
        f = open('/etc/userplans', 'r', encoding="utf-8")
    except Exception as err:
        common.fatal_error('Error opening /etc/userplans: %s' % err)
    lines = f.readlines()
    for line in lines:
        if line[0] != '#':
            pieces = line.split(': ')
            if len(pieces) == 2:
                pkg = pieces[1].strip(' \n\t')
                user = pieces[0].strip()
                logging.debug('   pkg: %s, user: %s' % (pkg, user))
                if pkg in plans:
                    try:
                        pwd_var = pwd.getpwnam(user)
                    except Exception as err:
                        common.fatal_error("passwd entry error: %s for user %s" % (err, user))
                    plans[pkg].append(pwd_var.pw_uid)
                    userplans[str(pwd_var.pw_name)] = pkg
                    logging.debug("add to %s: %s (%d)" % (pkg, user, pwd_var.pw_uid))
    f.close()
    return plans, userplans
    
def set_users_to_pkg(opt, users, users_vals, org_pkg, pkg_json, force, args_dict):
    logging.debug("set_users_to_pkg, opt: %s, force: %d" % (opt, force))
    if args_dict != None and not opt in args_dict:
        return False
    pkg_jsonInfinite = arrInfinite(opt, pkg_json)
    if pkg_jsonInfinite:
        cgval = '-1'
    else:
        cgval = pkg_json[opt]
    args = [common.get_bin_file('lscgctl'), '--' + opt, cgval, 'set']    
    found_diff = False
    for user in users:
        if not user in pkg_json['uids']:
            do_force = True
        else:
            do_force = force
        if not do_force and not opt_val_eq(opt, users_vals[str(user)], org_pkg):
            if not opt in org_pkg or not opt in users_vals[str(user)]:
                logging.debug('Skip opt %s for %s (not force)' % (opt, str(user)))
            else:
                logging.debug('Skip opt %s for %s (not force: %s != %s)' % (opt, str(user), users_vals[str(user)][opt], org_pkg[opt]))
            continue
        if opt_val_eq(opt, users_vals[str(user)], pkg_json):
            logging.debug('Skip opt %s for %s (already value)' % (opt, str(user)))
            continue
        logging.debug('Use opt %s for user %s' % (opt, str(user)))
        found_diff = True
        args.append(str(user))
    if not found_diff:
        logging.debug("no diff for opt: %s" % opt)
        return False
    run_program(args)
    return True

def write_pkg(pkg, pkg_json):
    logging.debug('Write pkg: %s as %s' % (pkg, common.pkg_to_filename(pkg)))
    try:
        f = open(common.pkg_to_filename(pkg), 'w', encoding="utf-8")
    except Exception as err:
        common.fatal_error('Error opening %s for write: %s' % (common.pkg_to_filename(pkg), err))
    if 'size' in pkg_json:
        logging.debug("Remove size")
        del pkg_json['size']
    for opt in common.get_options():
        if opt in pkg_json and arrInfinite(opt, pkg_json):
            del pkg_json[opt]
    try:
        f.write(json.dumps(pkg_json, indent=4))
    except Exception as err:
        common.fatal_error('Error writing %s: %s' % (common.pkg_to_filename(pkg), err))
    f.close()
    
def revalidate_pkg(pkg, pkg_sizes, users, users_vals, org_pkg, pkg_json, force, args_dict):
    logging.debug("revalidate_pkg %s %d users" % (pkg, len(users)))
    if len(users) == 0:
        logging.debug("Delete package entirely: %s" % pkg)
        filename = common.pkg_to_filename(pkg)
        if os.path.exists(filename):
            os.remove(filename)
        if pkg in pkg_sizes:
            del pkg_sizes[pkg]
            write_pkg_sizes(pkg_sizes)
        return
    test_users = []
    if force:
        test_users = users
    else:
        for user in users:
            if not str(user) in pkg_json['uids']:
                test_users.append(user)
    updated = False
    if not common.is_cl():
        for opt in common.get_options():
            logging.debug("opt: %s" % opt)
            if set_users_to_pkg(opt, test_users, users_vals, org_pkg, pkg_json, force, args_dict):
                updated = True
    else:
        logging.debug("CloudLinux, do not set users")
    if not updated:
        if set(users) != set(pkg_json['uids']):
            updated = True
            logging.debug("Changed users, so update pkg")
    if updated or org_pkg != pkg_json or common.is_cl():
        pkg_json['uids'] = users
        write_pkg(pkg, pkg_json)

def validate_pkg(pkg, pkg_sizes, users_vals, users):
    pkg_json = read_pkg(pkg, pkg_sizes)
    revalidate_pkg(pkg, pkg_sizes, users, users_vals, pkg_json, pkg_json, False, None)
    
def command_validate(args, users_vals, usersplans, pkg_sizes):
    if args.command == 'validate-all' or args.command == 'list-all':
        for pkg in usersplans:
            validate_pkg(pkg, pkg_sizes, users_vals, usersplans[pkg])
    else:
        for pkg in args.pkg:
            if not pkg in usersplans:
                common.fatal_error("Specified package: %s not found" % pkg)
            validate_pkg(pkg, pkg_sizes, users_vals, usersplans[pkg])

def arrInfinite(opt, arr):
    return (not opt in arr) or arr[opt] == None or arr[opt] == '' or arr[opt] == '-1'

def opt_val_eq(opt, arr1, arr2):
    arr1Infinite = arrInfinite(opt, arr1)
    arr2Infinite = arrInfinite(opt, arr2)
    if arr1Infinite or arr2Infinite:
        return arr1Infinite == arr2Infinite
    return common.str_num_values(common.int_num_values(arr1[opt])) == common.str_num_values(common.int_num_values(arr2[opt]))

def set_json(args, pkg_json):
    changed = False
    if common.is_cl():
        changed = True
    args_dict = vars(args)
    logging.debug('In set_json')
    for opt in common.get_options():
        if not opt_val_eq(opt, args_dict, pkg_json):
            if opt in args_dict and args_dict[opt] != None:
                pkg_json[opt] = args_dict[opt]
                changed = True
            else:
                logging.debug('   not set ' + opt)
        else:
            logging.debug('   equal ' + opt)
    if not changed:
        logging.debug('set_json nothing changed')
    return changed

def get_users_vals():
    pgm_args = [common.get_bin_file('lscgctl'), 'list-all', 'q']    
    out = run_program(pgm_args)
    try:
        users_vals = json.loads(out)
    except Exception as err:
        common.fatal_error('Error parsing user details: %s' % err)
    return users_vals

def deep_copy(pkg, pkg_json, pkg_sizes):
    copy = {}
    for opt in common.get_options():
        if opt in pkg_json:
            copy[opt] = pkg_json[opt]
    if "size" in pkg_sizes:
        copy["size"] = pkg_sizes[pkg]
    return copy

def command_set(args, users_vals, usersplans, pkg_sizes):
    all_users = False
    if 'force' in args.command or 'default' == args.command:
        all_users = True
    write_sizes = False
    for pkg in args.pkg:
        pkg_json = read_pkg(pkg, pkg_sizes)
        org_pkg = deep_copy(pkg, pkg_json, pkg_sizes)
        if 'set' in args.command:
            if args.size != None:
                logging.debug('set for pkg: ' + pkg + ' size: ' + args.size)
                write_sizes = True
                if args.size == '-1': 
                    if pkg in pkg_sizes:
                        del pkg_sizes[pkg]
                    if "size" in pkg_json:
                        logging.debug('delete size from pkg_json')
                        del pkg_json["size"]
                else:
                    pkg_json["size"] = args.size
                    pkg_sizes[pkg] = args.size
            if not set_json(args, pkg_json) and not all_users:
                continue
        revalidate_pkg(pkg, pkg_sizes, usersplans[pkg], users_vals, org_pkg, pkg_json, all_users, vars(args))
    if write_sizes:
        write_pkg_sizes(pkg_sizes)
    return 0

def command_usersize(args, pkg_sizes, userplans):
    rc = 0
    if str(args.user) in userplans:
        if userplans[str(args.user)] in pkg_sizes:
            logging.debug('user: ' + args.user + ' in pkg: ' + userplans[str(args.user)] + ' size: ' + pkg_sizes[userplans[str(args.user)]])
            print(pkg_sizes[userplans[str(args.user)]])
        else:
            logging.debug('user: ' + args.user + ' in pkg: ' + userplans[str(args.user)] + ' BUT HAS NO SIZE')
            sys.exit(1)
    else:
        logging.debug('user: ' + args.user + ' NOT in known packages')
        sys.exit(1)
    return rc

def command_userpkg(args, userplans):
    rc = 0
    if str(args.user) in userplans:
        logging.debug('user: ' + args.user + ' in pkg: ' + userplans[str(args.user)])
        print(userplans[str(args.user)])
    else:
        logging.debug('user: ' + args.user + ' NOT in known packages')
        sys.exit(1)
    return rc

def do_pgm(args):
    logging.debug("Entering lspkgctl, command: %s" % args.command)
    usersplans, uidplans = read_usersplans()
    if 'usersize' == args.command:
        pkg_sizes = read_pkg_sizes()
        ret = command_usersize(args, pkg_sizes, uidplans)
    elif 'userpkg' == args.command:
        ret = command_userpkg(args, uidplans)
    elif 'validate' in args.command or 'list' in args.command:
        pkg_sizes = read_pkg_sizes()
        if not common.is_cl():
            users_vals = get_users_vals()
        else:
            users_vals = []
        ret = command_validate(args, users_vals, usersplans, pkg_sizes)
        if 'list' in args.command:
            ret = command_list(args, pkg_sizes)
    elif 'set' in args.command or 'default' in args.command:
        pkg_sizes = read_pkg_sizes()
        if not common.is_cl():
            users_vals = get_users_vals()
        else:
            users_vals = []
        ret = command_set(args, users_vals, usersplans, pkg_sizes)
    else:
        common.fatal_error('Unexpected command: %s' % args.command)
    logging.debug("Exiting lspkgctl")
    return ret

def main():
    args = init_pgm()
    return do_pgm(args)
  
if __name__ == "__main__":
    main()

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