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# -*- coding: utf-8 -*-
#############################################################################
#
# Cybrosys Technologies Pvt. Ltd.
#
# Copyright (C) 2022-TODAY Cybrosys Technologies(<https://www.cybrosys.com>)
# Author: Cybrosys Techno Solutions(<https://www.cybrosys.com>)
#
# You can modify it under the terms of the GNU LESSER
# GENERAL PUBLIC LICENSE (LGPL v3), Version 3.
#
# 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 LESSER GENERAL PUBLIC LICENSE (LGPL v3) for more details.
#
# You should have received a copy of the GNU LESSER GENERAL PUBLIC LICENSE
# (LGPL v3) along with this program.
# If not, see <http://www.gnu.org/licenses/>.
#
#############################################################################
from odoo import models, fields, api, _
from odoo.exceptions import UserError, ValidationError
import odoo
from odoo.service import db
import dropbox
import datetime
import os
import paramiko
import ftplib
import json
import requests
import tempfile
import errno
import logging
_logger = logging.getLogger(__name__)
class AutoDatabaseBackup(models.Model):
_name = 'db.backup.configure'
_description = 'Automatic Database Backup'
name = fields.Char(string='Name', required=True)
db_name = fields.Char(string='Database Name', required=True)
master_pwd = fields.Char(string='Master Password', required=True)
backup_format = fields.Selection([
('zip', 'Zip'),
('dump', 'Dump')
], string='Backup Format', default='zip', required=True)
backup_destination = fields.Selection([
('local', 'Local Storage'),
('google_drive', 'Google Drive'),
('ftp', 'FTP'),
('sftp', 'SFTP'),
('dropbox', 'Dropbox')
], string='Backup Destination')
backup_path = fields.Char(string='Backup Path', help='Local storage directory path')
sftp_host = fields.Char(string='SFTP Host')
sftp_port = fields.Char(string='SFTP Port', default=22)
sftp_user = fields.Char(string='SFTP User', copy=False)
sftp_password = fields.Char(string='SFTP Password', copy=False)
sftp_path = fields.Char(string='SFTP Path')
ftp_host = fields.Char(string='FTP Host')
ftp_port = fields.Char(string='FTP Port', default=21)
ftp_user = fields.Char(string='FTP User', copy=False)
ftp_password = fields.Char(string='FTP Password', copy=False)
ftp_path = fields.Char(string='FTP Path')
dropbox_client_id = fields.Char(string='Dropbox Client ID', copy=False)
dropbox_client_secret = fields.Char(string='Dropbox Client Secret', copy=False)
dropbox_refresh_token = fields.Char(string='Dropbox Refresh Token', copy=False)
is_dropbox_token_generated = fields.Boolean(string='Dropbox Token Generated', compute='_compute_is_dropbox_token_generated', copy=False)
dropbox_folder = fields.Char('Dropbox Folder')
active = fields.Boolean(default=True)
auto_remove = fields.Boolean(string='Remove Old Backups')
days_to_remove = fields.Integer(string='Remove After',
help='Automatically delete stored backups after this specified number of days')
google_drive_folderid = fields.Char(string='Drive Folder ID')
notify_user = fields.Boolean(string='Notify User',
help='Send an email notification to user when the backup operation is successful or failed')
user_id = fields.Many2one('res.users', string='User')
backup_filename = fields.Char(string='Backup Filename', help='For Storing generated backup filename')
generated_exception = fields.Char(string='Exception', help='Exception Encountered while Backup generation')
@api.depends('dropbox_refresh_token')
def _compute_is_dropbox_token_generated(self):
"""
Set True if the dropbox refresh token is generated
"""
for rec in self:
rec.is_dropbox_token_generated = bool(rec.dropbox_refresh_token)
def action_get_dropbox_auth_code(self):
"""
Open a wizard to setup dropbox Authorization code
"""
return {
'type': 'ir.actions.act_window',
'name': 'Dropbox Authorization Wizard',
'res_model': 'dropbox.auth.wizard',
'view_mode': 'form',
'target': 'new',
}
def get_dropbox_auth_url(self):
"""
Return dropbox authorization url
"""
dbx_auth = dropbox.oauth.DropboxOAuth2FlowNoRedirect(self.dropbox_client_id, self.dropbox_client_secret,
token_access_type='offline')
auth_url = dbx_auth.start()
return auth_url
def set_dropbox_refresh_token(self, auth_code):
"""
Generate and set the dropbox refresh token from authorization code
"""
dbx_auth = dropbox.oauth.DropboxOAuth2FlowNoRedirect(self.dropbox_client_id, self.dropbox_client_secret,
token_access_type='offline')
outh_result = dbx_auth.finish(auth_code)
self.dropbox_refresh_token = outh_result.refresh_token
@api.constrains('db_name')
def _check_db_credentials(self):
"""
Validate entered database name and master password
"""
database_list = db.list_dbs()
if self.db_name not in database_list:
raise ValidationError(_("Invalid Database Name!"))
try:
odoo.service.db.check_super(self.master_pwd)
except Exception:
raise ValidationError(_("Invalid Master Password!"))
def test_connection(self):
"""
Test the sftp and ftp connection using entered credentials
"""
if self.backup_destination == 'sftp':
client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
try:
client.connect(hostname=self.sftp_host, username=self.sftp_user, password=self.sftp_password, port=self.sftp_port)
sftp = client.open_sftp()
sftp.close()
except Exception as e:
raise UserError(_("SFTP Exception: %s", e))
finally:
client.close()
elif self.backup_destination == 'ftp':
try:
ftp_server = ftplib.FTP()
ftp_server.connect(self.ftp_host, int(self.ftp_port))
ftp_server.login(self.ftp_user, self.ftp_password)
ftp_server.quit()
except Exception as e:
raise UserError(_("FTP Exception: %s", e))
title = _("Connection Test Succeeded!")
message = _("Everything seems properly set up!")
return {
'type': 'ir.actions.client',
'tag': 'display_notification',
'params': {
'title': title,
'message': message,
'sticky': False,
}
}
def _schedule_auto_backup(self):
"""
Function for generating and storing backup
Database backup for all the active records in backup configuration model will be created
"""
records = self.search([])
mail_template_success = self.env.ref('auto_database_backup.mail_template_data_db_backup_successful')
mail_template_failed = self.env.ref('auto_database_backup.mail_template_data_db_backup_failed')
for rec in records:
backup_time = datetime.datetime.utcnow().strftime("%Y-%m-%d_%H-%M-%S")
backup_filename = "%s_%s.%s" % (rec.db_name, backup_time, rec.backup_format)
rec.backup_filename = backup_filename
# Local backup
if rec.backup_destination == 'local':
try:
if not os.path.isdir(rec.backup_path):
os.makedirs(rec.backup_path)
backup_file = os.path.join(rec.backup_path, backup_filename)
f = open(backup_file, "wb")
odoo.service.db.dump_db(rec.db_name, f, rec.backup_format)
f.close()
# remove older backups
if rec.auto_remove:
for filename in os.listdir(rec.backup_path):
file = os.path.join(rec.backup_path, filename)
create_time = datetime.datetime.fromtimestamp(os.path.getctime(file))
backup_duration = datetime.datetime.utcnow() - create_time
if backup_duration.days >= rec.days_to_remove:
os.remove(file)
if rec.notify_user:
mail_template_success.send_mail(rec.id, force_send=True)
except Exception as e:
rec.generated_exception = e
_logger.info('FTP Exception: %s', e)
if rec.notify_user:
mail_template_failed.send_mail(rec.id, force_send=True)
# FTP backup
elif rec.backup_destination == 'ftp':
try:
ftp_server = ftplib.FTP()
ftp_server.connect(rec.ftp_host, int(rec.ftp_port))
ftp_server.login(rec.ftp_user, rec.ftp_password)
ftp_server.encoding = "utf-8"
temp = tempfile.NamedTemporaryFile(suffix='.%s' % rec.backup_format)
try:
ftp_server.cwd(rec.ftp_path)
except ftplib.error_perm:
ftp_server.mkd(rec.ftp_path)
ftp_server.cwd(rec.ftp_path)
with open(temp.name, "wb+") as tmp:
odoo.service.db.dump_db(rec.db_name, tmp, rec.backup_format)
ftp_server.storbinary('STOR %s' % backup_filename, open(temp.name, "rb"))
if rec.auto_remove:
files = ftp_server.nlst()
for f in files:
create_time = datetime.datetime.strptime(ftp_server.sendcmd('MDTM ' + f)[4:], "%Y%m%d%H%M%S")
diff_days = (datetime.datetime.now() - create_time).days
if diff_days >= rec.days_to_remove:
ftp_server.delete(f)
ftp_server.quit()
if rec.notify_user:
mail_template_success.send_mail(rec.id, force_send=True)
except Exception as e:
rec.generated_exception = e
_logger.info('FTP Exception: %s', e)
if rec.notify_user:
mail_template_failed.send_mail(rec.id, force_send=True)
# SFTP backup
elif rec.backup_destination == 'sftp':
client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
try:
client.connect(hostname=rec.sftp_host, username=rec.sftp_user, password=rec.sftp_password, port=rec.sftp_port)
sftp = client.open_sftp()
temp = tempfile.NamedTemporaryFile(suffix='.%s' % rec.backup_format)
with open(temp.name, "wb+") as tmp:
odoo.service.db.dump_db(rec.db_name, tmp, rec.backup_format)
try:
sftp.chdir(rec.sftp_path)
except IOError as e:
if e.errno == errno.ENOENT:
sftp.mkdir(rec.sftp_path)
sftp.chdir(rec.sftp_path)
sftp.put(temp.name, backup_filename)
if rec.auto_remove:
files = sftp.listdir()
expired = list(filter(lambda fl: (datetime.datetime.now() - datetime.datetime.fromtimestamp(sftp.stat(fl).st_mtime)).days >= rec.days_to_remove, files))
for file in expired:
sftp.unlink(file)
sftp.close()
if rec.notify_user:
mail_template_success.send_mail(rec.id, force_send=True)
except Exception as e:
rec.generated_exception = e
_logger.info('SFTP Exception: %s', e)
if rec.notify_user:
mail_template_failed.send_mail(rec.id, force_send=True)
finally:
client.close()
# Google Drive backup
elif rec.backup_destination == 'google_drive':
temp = tempfile.NamedTemporaryFile(suffix='.%s' % rec.backup_format)
with open(temp.name, "wb+") as tmp:
odoo.service.db.dump_db(rec.db_name, tmp, rec.backup_format)
try:
access_token = self.env['google.drive.config'].sudo().get_access_token()
headers = {"Authorization": "Bearer %s" % access_token}
para = {
"name": backup_filename,
"parents": [rec.google_drive_folderid],
}
files = {
'data': ('metadata', json.dumps(para), 'application/json; charset=UTF-8'),
'file': open(temp.name, "rb")
}
requests.post(
"https://www.googleapis.com/upload/drive/v3/files?uploadType=multipart",
headers=headers,
files=files
)
if rec.auto_remove:
query = "parents = '%s'" % rec.google_drive_folderid
files_req = requests.get("https://www.googleapis.com/drive/v3/files?q=%s" % query, headers=headers)
files = files_req.json()['files']
for file in files:
file_date_req = requests.get("https://www.googleapis.com/drive/v3/files/%s?fields=createdTime" % file['id'], headers=headers)
create_time = file_date_req.json()['createdTime'][:19].replace('T', ' ')
diff_days = (datetime.datetime.now() - datetime.datetime.strptime(create_time, '%Y-%m-%d %H:%M:%S')).days
if diff_days >= rec.days_to_remove:
requests.delete("https://www.googleapis.com/drive/v3/files/%s" % file['id'], headers=headers)
if rec.notify_user:
mail_template_success.send_mail(rec.id, force_send=True)
except Exception as e:
rec.generated_exception = e
_logger.info('Google Drive Exception: %s', e)
if rec.notify_user:
mail_template_failed.send_mail(rec.id, force_send=True)
# Dropbox backup
elif rec.backup_destination == 'dropbox':
temp = tempfile.NamedTemporaryFile(suffix='.%s' % rec.backup_format)
with open(temp.name, "wb+") as tmp:
odoo.service.db.dump_db(rec.db_name, tmp, rec.backup_format)
try:
dbx = dropbox.Dropbox(app_key=rec.dropbox_client_id, app_secret=rec.dropbox_client_secret, oauth2_refresh_token=rec.dropbox_refresh_token)
dropbox_destination = rec.dropbox_folder + '/' + backup_filename
dbx.files_upload(temp.read(), dropbox_destination)
if rec.auto_remove:
files = dbx.files_list_folder(rec.dropbox_folder)
file_entries = files.entries
expired_files = list(filter(lambda fl: (datetime.datetime.now() - fl.client_modified).days >= rec.days_to_remove, file_entries))
for file in expired_files:
dbx.files_delete_v2(file.path_display)
if rec.notify_user:
mail_template_success.send_mail(rec.id, force_send=True)
except Exception as error:
rec.generated_exception = error
_logger.info('Dropbox Exception: %s', error)
if rec.notify_user:
mail_template_failed.send_mail(rec.id, force_send=True)