1
0
mirror of https://github.com/altlinux/gpupdate.git synced 2025-10-20 15:33:18 +03:00
Files
gpupdate/gpoa/storage/fs_file_cache.py
2024-10-11 12:04:38 +04:00

127 lines
4.2 KiB
Python

#
# GPOA - GPO Applier for Linux
#
# Copyright (C) 2021 BaseALT Ltd. <org@basealt.ru>
# Copyright (C) 2021 Igor Chudov <nir@nir.org.ru>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import os.path
import tempfile
from pathlib import Path
import smbc
from util.logging import log
from util.paths import file_cache_dir, file_cache_path_home, UNCPath
from util.exceptions import NotUNCPathError
from util.util import get_machine_name
class fs_file_cache:
__read_blocksize = 4096
def __init__(self, cache_name, username = None):
self.cache_name = cache_name
self.username = username
if username and username != get_machine_name():
try:
self.storage_uri = file_cache_path_home(username)
except:
self.storage_uri = file_cache_dir()
else:
self.storage_uri = file_cache_dir()
logdata = dict({'cache_file': self.storage_uri})
log('D20', logdata)
self.samba_context = smbc.Context(use_kerberos=1)
#, debug=10)
def store(self, uri, destfile = None):
try:
uri_path = UNCPath(uri)
if not destfile:
file_name = os.path.basename(uri_path.get_path())
file_path = os.path.dirname(uri_path.get_path())
destdir = Path('{}/{}/{}'.format(self.storage_uri,
uri_path.get_domain(),
file_path))
else:
destdir = destfile.parent
except NotUNCPathError:
return None
except Exception as exc:
logdata = dict({'exception': str(exc)})
log('D144', logdata)
raise exc
if not destdir.exists():
destdir.mkdir(parents=True, exist_ok=True)
if not destfile:
destfile = Path('{}/{}/{}'.format(self.storage_uri,
uri_path.get_domain(),
uri_path.get_path()))
try:
fd, tmpfile = tempfile.mkstemp('', str(destfile))
df = os.fdopen(fd, 'wb')
file_handler = self.samba_context.open(str(uri_path), os.O_RDONLY)
while True:
data = file_handler.read(self.__read_blocksize)
if not data:
break
df.write(data)
df.close()
os.rename(tmpfile, destfile)
os.chmod(destfile, 0o644)
except:
tmppath = Path(tmpfile)
if tmppath.exists():
tmppath.unlink()
def get(self, uri):
destfile = uri
try:
uri_path = UNCPath(uri)
file_name = os.path.basename(uri_path.get_path())
file_path = os.path.dirname(uri_path.get_path())
destfile = Path('{}/{}/{}'.format(self.storage_uri,
uri_path.get_domain(),
uri_path.get_path()))
except NotUNCPathError as exc:
logdata = dict({'path': str(exc)})
log('D62', logdata)
except Exception as exc:
logdata = dict({'exception': str(exc)})
log('E36', logdata)
raise exc
return str(destfile)
def get_ls_smbdir(self, uri):
type_file_smb = 8
try:
uri_path = UNCPath(uri)
opendir = self.samba_context.opendir(str(uri_path))
ls_obj = opendir.getdents()
ls = [obj.name for obj in ls_obj if obj.smbc_type == type_file_smb]
return ls
except Exception as exc:
if Path(uri).exists():
return None
logdata = dict({'exception': str(exc)})
log('W12', logdata)
return None