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import logging
import os
import subprocess
log = logging.getLogger(__name__)
class SystemCommand():
@classmethod
def execute(cls, cmd_args, with_sudo=True):
"""Runs the command passed."""
if not isinstance(cmd_args, list):
cmd_args = list(cmd_args)
if with_sudo:
cmd_args.insert(0, "sudo")
with open(os.devnull, 'w') as tempf:
process = subprocess.Popen(cmd_args, stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
(stdout, stderr) = process.communicate()
if process.returncode != 0:
log.warn("Error executing command: '%s'. Reason: %s." %
(" ".join(cmd_args), stderr))
else:
log.debug("Sucess executing command %s. Output: %s" % (cmd_args,
stdout))
return stdout
@classmethod
def add_group(cls, groupname):
cmd_args = ["groupadd", groupname]
cls.execute(cmd_args)
@classmethod
def rename_group(cls, groupname, newgroupname):
cmd_args = ["groupmod", "-n", newgroupname, groupname]
cls.execute(cmd_args)
@classmethod
def delete_group(cls, groupname):
cmd_args = ["groupdel", groupname]
cls.execute(cmd_args)
@classmethod
def add_user(cls, username):
cmd_args = ["adduser", "--disabled-password", "--force-badname",
"--quiet", "--gecos", "''", username]
cls.execute(cmd_args)
@classmethod
def add_user_to_group(cls, groupname, username):
cmd_args = ["gpasswd", "-a", username, groupname]
cls.execute(cmd_args)
@classmethod
def remove_user_from_group(cls, groupname, username):
cmd_args = ["gpasswd", "-d", username, groupname]
cls.execute(cmd_args)
@classmethod
def get_group_members(cls, groupname):
cmd_args = ["members", "--all", groupname]
try:
output = cls.execute(cmd_args)
users = set(output.split())
return users
except:
return {}
@classmethod
def change_ownership(cls, path, group):
cmd_args = ["change-repo-ownership", path, group]
cls.execute(cmd_args)
@classmethod
def get_system_groups(cls):
cmd_args = ["getent", "group"]
try:
output = cls.execute(cmd_args)
lines = output.split()
groups = [line.split(":")[0] for line in lines]
return groups
except:
return []
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