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Mini Shell
Mini Shell
#!/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()
Zerion Mini Shell 1.0