242 lines
9.2 KiB
Python
242 lines
9.2 KiB
Python
#!/usr/bin/env python3
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# -*- coding:utf-8 -*-
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#############################################################################
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# Copyright (c) 2020 Huawei Technologies Co.,Ltd.
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#
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# openGauss is licensed under Mulan PSL v2.
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# You can use this software according to the terms
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# and conditions of the Mulan PSL v2.
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# You may obtain a copy of Mulan PSL v2 at:
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#
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# http://license.coscl.org.cn/MulanPSL2
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#
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# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OF ANY KIND,
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# EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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# MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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# See the Mulan PSL v2 for more details.
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# ----------------------------------------------------------------------------
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# Description : CleanOsUser.py is a utility to clean OS user.
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#############################################################################
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import getopt
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import os
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import sys
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import subprocess
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sys.path.append(sys.path[0] + "/../")
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from gspylib.common.GaussLog import GaussLog
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from gspylib.common.ParameterParsecheck import Parameter
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from gspylib.common.ErrorCode import ErrorCode
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from gspylib.common.LocalBaseOM import LocalBaseOM
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from domain_utils.cluster_file.cluster_log import ClusterLog
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from domain_utils.domain_common.cluster_constants import ClusterConstants
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from domain_utils.cluster_os.cluster_user import ClusterUser
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class CleanOsUser(LocalBaseOM):
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'''
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This class is for cleaning os user, it will not cleaning group.
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'''
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def __init__(self):
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'''
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Constructor
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'''
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self.userProfile = ""
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self.user = ""
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self.logger = None
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##########################################################################
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# Help context.
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##########################################################################
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def usage(self):
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"""
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function: usage
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input : NA
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output : NA
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"""
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print("CleanOsUser.py is a utility to clean OS user.")
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print(" ")
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print("Usage:")
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print(" python3 CleanOsUser.py --help")
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print(" python3 CleanOsUser.py -U user")
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print(" ")
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print("Common options:")
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print(" -U the database program and cluster owner")
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print(" --help show this help, then exit")
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print(" ")
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def __checkParameters(self):
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"""
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function: Check parameter from command line
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input : NA
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output: NA
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"""
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try:
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opts, args = getopt.getopt(sys.argv[1:], "U:l:", ["help"])
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except getopt.GetoptError as e:
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GaussLog.exitWithError(ErrorCode.GAUSS_500["GAUSS_50000"]
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% str(e))
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if (len(args) > 0):
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GaussLog.exitWithError(ErrorCode.GAUSS_500["GAUSS_50000"]
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% str(args[0]))
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logFile = ""
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for key, value in opts:
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if (key == "-U"):
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self.user = value
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elif (key == "-l"):
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logFile = value
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elif (key == "--help"):
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self.usage()
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sys.exit(0)
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else:
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GaussLog.exitWithError(ErrorCode.GAUSS_500["GAUSS_50000"]
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% key)
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Parameter.checkParaVaild(key, value)
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if (self.user == ""):
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GaussLog.exitWithError(ErrorCode.GAUSS_500["GAUSS_50001"] % 'U'
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+ ".")
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try:
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ClusterUser.checkUser(self.user, False)
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except Exception as e:
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GaussLog.exitWithError(str(e))
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if (logFile == ""):
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logFile = ClusterLog.getOMLogPath(ClusterConstants.LOCAL_LOG_FILE,
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self.user, "")
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self.logger = GaussLog(logFile, "CleanOsUser")
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self.logger.ignoreErr = True
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##########################################################################
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# This is the main clean OS user flow.
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##########################################################################
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def cleanOsUser(self):
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"""
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function: Clean OS user
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input : NA
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output: NA
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"""
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self.__checkParameters()
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self.logger.log("Cleaning crash OS user.")
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try:
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# clean semaphore
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subprocess.getstatusoutput("ipcs -s|awk '/ %s /{print $2}'|"
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"xargs -n1 ipcrm -s" % self.user)
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# get install path
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cmd = "su - %s -c 'echo $GAUSSHOME' 2>/dev/null" % self.user
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(status, output) = subprocess.getstatusoutput(cmd)
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if (status != 0):
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self.logger.logExit(ErrorCode.GAUSS_518["GAUSS_51802"]
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% "$GAUSSHOME" + " Error:\n%s" % output)
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gaussHome = output.strip()
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if (gaussHome == ""):
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self.logger.debug("$GAUSSHOME is null. This means you may "
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"must clean crash install path manually.")
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self.logger.debug("The installation path is %s." % gaussHome)
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#clean user cron
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self.clean_user_cron()
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# clean user process
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kill_cmd = "pkill -u %s" % self.user
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status, output = subprocess.getstatusoutput(kill_cmd)
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self.logger.debug("Kill user[%s] process.status is [%s],result is:%s"
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% (self.user, status, output))
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# delete user
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status, output = subprocess.getstatusoutput("userdel -f %s"
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% self.user)
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if (status != 0):
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self.logger.logExit(ErrorCode.GAUSS_503["GAUSS_50314"]
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% self.user + " Error: \n%s" % output)
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# delete path
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if os.path.isdir(gaussHome):
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if os.stat(gaussHome).st_uid != 0:
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status, output = subprocess.getstatusoutput("rm -rf '%s'"
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% gaussHome)
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if (status != 0):
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self.logger.logExit(ErrorCode.GAUSS_502["GAUSS_50209"]
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% gaussHome + " Error: \n%s" % output)
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except Exception as e:
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self.logger.logExit(str(e))
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self.logger.log("Successfully cleaned OS user.")
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def clean_user_cron(self):
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"""
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:return:
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"""
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#get install path
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self.logger.debug("Clean user cron")
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tmp_path = "/home/%s" %self.user
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cron_file = "%s/gauss_cron_%s" % (tmp_path, self.user)
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set_cron_cmd = "crontab -u %s -l > %s && " % (self.user, cron_file)
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set_cron_cmd += "sed -i '/CheckSshAgent.py/d' %s;" % cron_file
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set_cron_cmd += "crontab -u %s %s;service cron restart;" % (self.user, cron_file)
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set_cron_cmd += "rm -f '%s'" % cron_file
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self.logger.debug("Command for delete CRON: %s" % set_cron_cmd)
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(status, output) = subprocess.getstatusoutput(set_cron_cmd)
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if status != 0:
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self.logger.logExit(ErrorCode.GAUSS_502["GAUSS_50207"] % "user cron"
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+ " Error:\n%s" % output)
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self.logger.debug("Successfully to clean user cron")
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def removeAllowUsers(self):
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"""
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function: Remove the specific user from 'AllowUsers'
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in /etc/ssh/sshd_config
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input : NA
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output: NA
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"""
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sshd_config = "/etc/ssh/sshd_config"
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try:
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cmd = "cat %s | grep -E '\\<AllowUsers\\>'" % sshd_config
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(status, output) = subprocess.getstatusoutput(cmd)
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# Not found, or there is an error.
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if status != 0:
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if output is None or len(output.lstrip()) == 0:
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self.logger.debug("No 'AllowUsers' configuration found"
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" in %s" % sshd_config)
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else:
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# Error occurred, but there is no need to report.
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self.logger.debug("Failed to get 'AllowUsers' from %s"
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% sshd_config)
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return
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allowUsersLineBefore = output.lstrip()
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userList = allowUsersLineBefore.split()
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userList.remove(self.user)
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allowUsersLineRemoved = ' '.join(userList)
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cmd = "sed -i 's/%s/%s/g' %s" % (allowUsersLineBefore,
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allowUsersLineRemoved,
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sshd_config)
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(status, output) = subprocess.getstatusoutput(cmd)
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# Not found, or there is an error.
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if status != 0:
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self.logger.debug("Failed to remove user '%s' from "
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"'AllowUsers' in %s. Command: %s, Error: %s"
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% (self.user, sshd_config, cmd, output))
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except Exception as e:
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self.logger.debug("Failed to remove user '%s' from 'AllowUsers'"
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" in %s. Error: %s" % (self.user, sshd_config,
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str(e)))
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if __name__ == '__main__':
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"""
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main function
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"""
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try:
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cleaner = CleanOsUser()
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cleaner.cleanOsUser()
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cleaner.removeAllowUsers()
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except Exception as e:
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GaussLog.exitWithError(str(e))
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sys.exit(0)
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