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fix code passing ruff linter pre-commit ruff pre-commit ruff format
176 lines
7.5 KiB
Python
176 lines
7.5 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# -----------------------------------------------------------------------
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# This file is part of TISBackup
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#
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# TISBackup is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# TISBackup is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with TISBackup. If not, see <http://www.gnu.org/licenses/>.
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#
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# -----------------------------------------------------------------------
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import sys
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try:
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sys.stderr = open("/dev/null") # Silence silly warnings from paramiko
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import paramiko
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except ImportError as e:
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print("Error : can not load paramiko library %s" % e)
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raise
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sys.stderr = sys.__stderr__
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import base64
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import datetime
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import os
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from .common import *
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class backup_sqlserver(backup_generic):
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"""Backup a SQLSERVER database as gzipped sql file through ssh"""
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type = "sqlserver+ssh"
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required_params = backup_generic.required_params + ["db_name", "private_key"]
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optional_params = ["username", "remote_backup_dir", "sqlserver_before_2005", "db_server_name", "db_user", "db_password"]
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db_name = ""
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db_user = ""
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db_password = ""
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userdb = "-E"
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username = "Administrateur"
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remote_backup_dir = r"c:/WINDOWS/Temp/"
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sqlserver_before_2005 = False
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db_server_name = "localhost"
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def do_backup(self, stats):
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try:
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mykey = paramiko.RSAKey.from_private_key_file(self.private_key)
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except paramiko.SSHException:
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# mykey = paramiko.DSSKey.from_private_key_file(self.private_key)
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mykey = paramiko.Ed25519Key.from_private_key_file(self.private_key)
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self.logger.debug("[%s] Connecting to %s with user root and key %s", self.backup_name, self.server_name, self.private_key)
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ssh = paramiko.SSHClient()
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ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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ssh.connect(self.server_name, username=self.username, pkey=mykey, port=self.ssh_port)
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t = datetime.datetime.now()
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backup_start_date = t.strftime("%Y%m%d-%Hh%Mm%S")
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backup_file = self.remote_backup_dir + "/" + self.db_name + "-" + backup_start_date + ".bak"
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if not self.db_user == "":
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self.userdb = "-U %s -P %s" % (self.db_user, self.db_password)
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# dump db
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stats["status"] = "Dumping"
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if self.sqlserver_before_2005:
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cmd = """osql -E -Q "BACKUP DATABASE [%s]
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TO DISK='%s'
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WITH FORMAT" """ % (self.db_name, backup_file)
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else:
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cmd = """sqlcmd %s -S "%s" -d master -Q "BACKUP DATABASE [%s]
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TO DISK = N'%s'
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WITH INIT, NOUNLOAD ,
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NAME = N'Backup %s', NOSKIP ,STATS = 10, NOFORMAT" """ % (
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self.userdb,
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self.db_server_name,
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self.db_name,
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backup_file,
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self.db_name,
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)
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self.logger.debug("[%s] Dump DB : %s", self.backup_name, cmd)
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try:
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if not self.dry_run:
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(error_code, output) = ssh_exec(cmd, ssh=ssh)
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self.logger.debug("[%s] Output of %s :\n%s", self.backup_name, cmd, output)
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if error_code:
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raise Exception('Aborting, Not null exit code (%i) for "%s"' % (error_code, cmd))
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# zip the file
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stats["status"] = "Zipping"
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cmd = 'gzip "%s"' % backup_file
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self.logger.debug("[%s] Compress backup : %s", self.backup_name, cmd)
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if not self.dry_run:
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(error_code, output) = ssh_exec(cmd, ssh=ssh)
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self.logger.debug("[%s] Output of %s :\n%s", self.backup_name, cmd, output)
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if error_code:
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raise Exception('Aborting, Not null exit code (%i) for "%s"' % (error_code, cmd))
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# get the file
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stats["status"] = "SFTP"
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filepath = backup_file + ".gz"
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localpath = os.path.join(self.backup_dir, self.db_name + "-" + backup_start_date + ".bak.gz")
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self.logger.debug("[%s] Get gz backup with sftp on %s from %s to %s", self.backup_name, self.server_name, filepath, localpath)
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if not self.dry_run:
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transport = ssh.get_transport()
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sftp = paramiko.SFTPClient.from_transport(transport)
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sftp.get(filepath, localpath)
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sftp.close()
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if not self.dry_run:
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stats["total_files_count"] = 1
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stats["written_files_count"] = 1
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stats["total_bytes"] = os.stat(localpath).st_size
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stats["written_bytes"] = os.stat(localpath).st_size
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stats["log"] = "gzip dump of DB %s:%s (%d bytes) to %s" % (self.server_name, self.db_name, stats["written_bytes"], localpath)
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stats["backup_location"] = localpath
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finally:
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stats["status"] = "RMTemp"
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cmd = 'rm -f "%s" "%s"' % (backup_file + ".gz", backup_file)
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self.logger.debug("[%s] Remove temp gzip : %s", self.backup_name, cmd)
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if not self.dry_run:
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(error_code, output) = ssh_exec(cmd, ssh=ssh)
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self.logger.debug("[%s] Output of %s :\n%s", self.backup_name, cmd, output)
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if error_code:
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raise Exception('Aborting, Not null exit code (%i) for "%s"' % (error_code, cmd))
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stats["status"] = "OK"
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def register_existingbackups(self):
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"""scan backup dir and insert stats in database"""
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registered = [
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b["backup_location"]
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for b in self.dbstat.query("select distinct backup_location from stats where backup_name=?", (self.backup_name,))
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]
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filelist = os.listdir(self.backup_dir)
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filelist.sort()
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p = re.compile("^%s-(?P<date>\d{8,8}-\d{2,2}h\d{2,2}m\d{2,2}).bak.gz$" % self.db_name)
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for item in filelist:
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sr = p.match(item)
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if sr:
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file_name = os.path.join(self.backup_dir, item)
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start = datetime.datetime.strptime(sr.groups()[0], "%Y%m%d-%Hh%Mm%S").isoformat()
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if file_name not in registered:
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self.logger.info("Registering %s from %s", file_name, fileisodate(file_name))
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size_bytes = int(os.popen('du -sb "%s"' % file_name).read().split("\t")[0])
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self.logger.debug(" Size in bytes : %i", size_bytes)
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if not self.dry_run:
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self.dbstat.add(
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self.backup_name,
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self.server_name,
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"",
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backup_start=start,
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backup_end=fileisodate(file_name),
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status="OK",
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total_bytes=size_bytes,
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backup_location=file_name,
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)
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else:
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self.logger.info("Skipping %s from %s, already registered", file_name, fileisodate(file_name))
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register_driver(backup_sqlserver)
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