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Mini Shell
Mini Shell
# Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2024 All Rights Reserved
#
# Licensed under CLOUD LINUX LICENSE AGREEMENT
# http://cloudlinux.com/docs/LICENSE.TXT
import errno
import functools
import logging
import os
import sys
import secureio
from clcommon import clcaptain
from clcommon.utils import ExternalProgramFailed
logger = logging.getLogger(__name__)
def read_file(filename, exit_on_error=True):
"""
Helper for read file, process errors and make backup before read
:param: filename `str` name of file for read
:param: exit_on_error `bool` use sys.exit on error or raise exception
"""
try:
with open(filename, 'r') as _file:
return _file.readlines()
except (OSError, IOError):
secureio.logging('Error: failed to read ' + filename, secureio.SILENT_FLAG, 1)
if not exit_on_error:
raise
sys.exit(1)
@functools.cache
def read_file_cached(path):
return read_file(path)
# Returns True if error has occured
def make_userdir(path, perm, uid, gid, parent_path):
# Create directory if it does not exist, and set permissions/owner
fd = secureio.create_dir_secure(path, perm, uid, gid, parent_path, logger=secureio.logging)
secureio.closefd(fd)
return fd is None
def switch_symlink(dest_path, link_name, write_log=True, force=True, silent=False):
if force or not os.path.islink(link_name):
try:
os.unlink(link_name)
except OSError as e:
if e.errno == errno.ENOENT: # No such file error
logger.info(f'Symlink {link_name} does not exist')
else:
logger.error(f'Error: Unable to remove symlink {link_name}', exc_info=e)
try:
clcaptain.symlink(dest_path, link_name)
except (OSError, ExternalProgramFailed) as e:
msg = f'Error: failed to create symlink {link_name} to {dest_path} : {str(e).replace("Errno", "Err code")}'
logger.error(msg, exc_info=e)
if write_log:
secureio.logging(msg, silent, True)
else:
print(msg, file=sys.stderr)
return True
return False
Zerion Mini Shell 1.0