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lspkgctl
#!/usr/bin/python3 import argparse import common 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(): if os.getuid() != 0: common.fatal_error("this program must be run as root") common.ls_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', '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.") 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): common.fatal_error("You specified command: %s and no qualifier to set with it" % command) 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(pkg): 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() return pkg_json def list_pkg(pkg): pkg_json = read_pkg(pkg) return pkg_json def command_list(args, single_list=False): pkg_obj = {} if single_list or args.command == 'list': for pkg in args.pkg: pkg_obj[pkg] = list_pkg(pkg) 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) 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 pwd.getpwall(): if user.pw_uid >= common.get_min_uid(): logging.debug('home_dict key: ' + user.pw_dir) home_dict[user.pw_dir] = user return home_dict def read_pleskplans(): home_dict = plesk_home_dict() plans = {} # 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) return plans def read_usersplans(): if common.get_plesk(): return read_pleskplans() plans = {} 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) logging.debug(" add to %s: %s (%d)" % (pkg, user, pwd_var.pw_uid)) f.close() return plans def set_users_to_pkg(opt, users, users_vals, org_pkg, pkg_json, force, args_dict): 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: 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)) 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, users, users_vals, org_pkg, pkg_json, force, args_dict): logging.debug("revalidate_pkg") 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 for opt in common.get_options(): if set_users_to_pkg(opt, test_users, users_vals, org_pkg, pkg_json, force, args_dict): updated = True 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: pkg_json['uids'] = users write_pkg(pkg, pkg_json) def validate_pkg(pkg, users_vals, users): pkg_json = read_pkg(pkg) revalidate_pkg(pkg, users, users_vals, pkg_json, pkg_json, False, None) def command_validate(args, users_vals, usersplans): if args.command == 'validate-all' or args.command == 'list-all': for pkg in usersplans: validate_pkg(pkg, 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, 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 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): copy = {} for opt in common.get_options(): if opt in pkg: copy[opt] = pkg[opt] return copy def command_set(args, users_vals, usersplans): all_users = False if 'force' in args.command or 'default' == args.command: all_users = True for pkg in args.pkg: pkg_json = read_pkg(pkg) org_pkg = deep_copy(pkg_json) if 'set' in args.command: if not set_json(args, pkg_json) and not all_users: continue revalidate_pkg(pkg, usersplans[pkg], users_vals, org_pkg, pkg_json, all_users, vars(args)) return 0 def do_pgm(args): logging.debug("Entering lspkgctl, command: %s" % args.command) users_vals = get_users_vals() usersplans = read_usersplans() if 'validate' in args.command or 'list' in args.command: ret = command_validate(args, users_vals, usersplans) if 'list' in args.command: ret = command_list(args) elif 'set' in args.command or 'default' in args.command: ret = command_set(args, users_vals, usersplans) 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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