Files
modoboa-installer/modoboa_installer/scripts/backup.py
2022-09-15 11:32:57 +02:00

201 lines
7.0 KiB
Python

"""Backup script for pre-installed instance"""
import os
import pwd
import shutil
import stat
import datetime
import sys
from .. import database
from .. import utils
# TODO: have version of each modoboa componenents saved into the config file to restore the same version
class Backup():
# Backup structure ( {optional} ):
# {{backup_folder}}
# ||
# ||--> installer.cfg
# ||--> custom
# |--> { (copy of) /etc/amavis/conf.d/99-custom }
# |--> { (copy of) /etc/postfix/custom_whitelist.cidr }
# ||--> databases
# |--> modoboa.sql
# |--> { amavis.sql }
# |--> { spamassassin.sql }
# ||--> mails
# |--> vmails
def __init__(self, config, bashArg, nomail):
self.config = config
self.destinationPath = ""
self.BACKUPDIRECTORY = ["custom/", "databases/"]
self.nomail = nomail
self.isBash = False
self.bash = ""
if bashArg != "NOBASH":
self.isBash = True
self.bash = bashArg
def preparePath(self):
pw = pwd.getpwnam("root")
for dir in self.BACKUPDIRECTORY:
utils.mkdir_safe(os.path.join(self.destinationPath, dir),
stat.S_IRWXU | stat.S_IRWXG, pw[2], pw[3])
def validatePath(self, path):
"""Check basic condition for backup directory"""
try:
pathExists = os.path.exists(path)
except:
print("Provided path is not recognized...")
return False
if pathExists and os.path.isfile(path):
print("Error, you provided a file instead of a directory!")
return False
if not pathExists:
if not self.isBash:
createDir = input(
f"\"{path}\" doesn't exists, would you like to create it ? [Y/n]\n").lower()
if self.isBash or (not self.isBash and (createDir == "y" or createDir == "yes")):
pw = pwd.getpwnam("root")
utils.mkdir_safe(path, stat.S_IRWXU |
stat.S_IRWXG, pw[2], pw[3])
else:
return False
if len(os.listdir(path)) != 0:
if not self.isBash:
delDir = input(
"Warning : backup folder is not empty, it will be purged if you continue... [Y/n]\n").lower()
if self.isBash or (not self.isBash and (delDir == "y" or delDir == "yes")):
shutil.rmtree(path)
else:
return False
self.destinationPath = path
self.preparePath()
return True
def setPath(self):
"""Setup backup directory"""
if self.isBash:
if self.bash == "TRUE":
date = datetime.datetime.now().strftime("%m_%d_%Y_%H_%M")
path = f"/modoboa_backup/backup_{date}/"
self.validatePath(path)
else:
validate = self.validatePath(self.bash)
if not validate:
print("provided bash is not right, exiting...")
print(f"Path provided : {self.bash}")
sys.exit(1)
else:
user_value = None
while (user_value == '' or user_value == None or not self.validatePath(user_value)):
print("Enter backup path, please provide an empty folder.")
print("CTRL+C to cancel")
user_value = utils.user_input("-> ")
def backupConfigFile(self):
utils.copy_file("installer.cfg", self.destinationPath)
def backupMails(self):
if self.nomail:
utils.printcolor(
"Skipping mail backup, no-mail argument provided", utils.MAGENTA)
return
utils.printcolor("Backing up mails", utils.MAGENTA)
home_path = self.config.get("dovecot", "home_dir")
if not os.path.exists(home_path) or os.path.isfile(home_path):
utils.printcolor("Error backing up Email, provided path "
f" ({home_path}) seems not right...", utils.RED)
else:
dst = os.path.join(self.destinationPath, "mails/")
if os.path.exists(dst):
shutil.rmtree(dst)
shutil.copytree(home_path, dst)
utils.printcolor("Mail backup complete!", utils.GREEN)
def backupCustomConfig(self):
"""Custom config :
- Amavis : /etc/amavis/conf.d/99-custom
- Postwhite : /etc/postwhite.conf
Feel free to suggest to add others!"""
utils.printcolor(
"Backing up some custom configuration...", utils.MAGENTA)
custom_path = os.path.join(
self.destinationPath, self.BACKUPDIRECTORY[0])
"""AMAVIS"""
amavis_custom = "/etc/amavis/conf.d/99-custom"
if os.path.isfile(amavis_custom):
utils.copy_file(amavis_custom, custom_path)
utils.printcolor("Amavis custom configuration saved!", utils.GREEN)
"""POSTWHITE"""
postswhite_custom = "/etc/postwhite.conf"
if os.path.isfile(postswhite_custom):
utils.copy_file(postswhite_custom, custom_path)
utils.printcolor("Postwhite configuration saved!", utils.GREEN)
def backupDBs(self):
"""Backing up databases"""
utils.printcolor("Backing up databases...", utils.MAGENTA)
dump_path = os.path.join(self.destinationPath, self.BACKUPDIRECTORY[1])
backend = database.get_backend(self.config)
"""Modoboa"""
dbname = self.config.get("modoboa", "dbname")
dbuser = self.config.get("modoboa", "dbuser")
dbpasswd = self.config.get("modoboa", "dbpassword")
backend.dumpDatabase(dbname, dbuser, dbpasswd,
os.path.join(dump_path, "modoboa.sql"))
"""Amavis"""
if (self.config.has_option("amavis", "enabled") and
self.config.getboolean("amavis", "enabled")):
dbname = self.config.get("amavis", "dbname")
dbuser = self.config.get("amavis", "dbuser")
dbpasswd = self.config.get("amavis", "dbpassword")
backend.dumpDatabase(dbname, dbuser, dbpasswd,
os.path.join(dump_path, "amavis.sql"))
"""SpamAssassin"""
if (self.config.has_option("spamassassin", "enabled") and
self.config.getboolean("spamassassin", "enabled")):
dbname = self.config.get("spamassassin", "dbname")
dbuser = self.config.get("spamassassin", "dbuser")
dbpasswd = self.config.get("spamassassin", "dbpassword")
backend.dumpDatabase(dbname, dbuser, dbpasswd,
os.path.join(dump_path, "spamassassin.sql"))
def backupCompletion(self):
utils.printcolor("Backup process done, your backup is availible here:"
f"--> {self.destinationPath}", utils.GREEN)
def run(self):
self.setPath()
self.backupConfigFile()
self.backupMails()
self.backupCustomConfig()
self.backupDBs()
self.backupCompletion()