/usr/lib/python2.7/dist-packages/backup2swift/backup.py is in python-backup2swift 0.8-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 | # -*- coding: utf-8 -*-
"""
Copyright (C) 2013 Kouhei Maeda <mkouhei@palmtb.net>
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.path
import glob
import sys
from datetime import datetime
from swiftsc import client
from backup2swift import utils
ROTATE_LIMIT = 10
class Backup(object):
def __init__(self, auth_url, username, password, rotate_limit=ROTATE_LIMIT,
verify=True, tenant_id=None, container_name=utils.FQDN):
self.verify = verify
(self.token,
self.storage_url) = client.retrieve_token(auth_url,
username,
password,
tenant_id,
verify=self.verify)
if isinstance(rotate_limit, str):
self.rotate_limit = int(rotate_limit)
else:
self.rotate_limit = rotate_limit
self.container_name = container_name
def backup(self, target_path):
"""
Argument:
target_path: path of backup target file or directory
"""
if isinstance(target_path, list):
# for multiple arguments
[utils.multiprocess(self.backup, path) for path in target_path]
elif os.path.isdir(target_path):
[utils.multiprocess(self.backup_file, f)
for f in glob.glob(os.path.join(target_path, '*'))]
elif os.path.isfile(target_path):
self.backup_file(target_path)
return True
def backup_file(self, filename, data=None):
"""
Argument:
filename: path of backup target file
data: backup target file content from stdin pipe
"""
object_name = os.path.basename(filename)
if not client.is_container(self.token, self.storage_url,
self.container_name, verify=self.verify):
# False is no container
rc = client.create_container(self.token,
self.storage_url,
self.container_name,
verify=self.verify)
if not (rc == 201 or rc == 202):
# 201; Created, 202; Accepted
raise RuntimeError('Failed to create the container "%s"'
% self.container_name, verify=self.verify)
objects_list = [object.get('name') for object in
client.list_objects(self.token,
self.storage_url,
self.container_name,
verify=self.verify)]
if filename and data:
# from stdin pipe
object_name = filename
filename = data
if object_name in objects_list:
self.rotate(filename, object_name, objects_list)
else:
rc = client.create_object(self.token,
self.storage_url,
self.container_name,
filename,
object_name=object_name,
verify=self.verify)
if not (rc == 201 or rc == 202):
raise RuntimeError('Failed to create the object "%s"'
% object_name)
return True
def rotate(self, filename, object_name, objects_list):
"""
Arguments:
filename: filename of backup target
object_name: name of object on Swift
objects_list: list of objects on Swift
"""
# copy current object to new object
timestamp = datetime.now().strftime("%Y%m%d-%H%M%S")
new_object_name = object_name + '_' + timestamp
rc = client.copy_object(self.token, self.storage_url,
self.container_name, object_name,
new_object_name, verify=self.verify)
if rc != 201:
raise RuntimeError('Failed to copy object "%s"' % new_object_name)
# create new object
rc = client.create_object(self.token, self.storage_url,
self.container_name, filename,
object_name=object_name,
verify=self.verify)
if rc != 201:
raise RuntimeError('Failed to create the object "%s"'
% object_name)
# delete old objects
archive_list = [obj for obj in objects_list
if obj.startswith(object_name + '_')]
archive_list.reverse()
[utils.multiprocess(client.delete_object, self.token,
self.storage_url, self.container_name,
obj, verify=self.verify)
for i, obj in enumerate(archive_list)
if i + 1 > self.rotate_limit - 1]
return True
def retrieve_backup_data_list(self, verbose=False):
"""
Argument:
verbose: boolean flag of listing objects
"""
if not client.is_container(self.token, self.storage_url,
self.container_name, verify=self.verify):
return []
if verbose:
backup_l = [i for i in client.list_objects(self.token,
self.storage_url,
self.container_name,
verify=self.verify)]
else:
backup_l = [i.get('name') for i
in client.list_objects(self.token,
self.storage_url,
self.container_name,
verify=self.verify)]
return backup_l
def retrieve_backup_data(self, object_name, output_filepath=None):
"""
Argument:
object_name: delete target object name
"""
if isinstance(object_name, list):
# for retrieve multiple objects
output_filepath = None
[utils.multiprocess(self.retrieve_backup_data, obj)
for obj in object_name]
elif (client.is_container(self.token, self.storage_url,
self.container_name, verify=self.verify) and
client.is_object(self.token, self.storage_url,
self.container_name, object_name,
verify=self.verify)):
rc, content = client.retrieve_object(self.token,
self.storage_url,
self.container_name,
object_name,
verify=self.verify)
if not rc:
raise RuntimeError('Failed to retrieve the object "%s"'
% object_name)
if output_filepath:
fpath = os.path.abspath(output_filepath)
dpath = os.path.dirname(fpath)
if not os.path.isdir(dpath):
raise IOError('No such directory "%s"' % dpath)
else:
dpath = os.path.abspath(os.curdir)
fpath = os.path.join(dpath, object_name)
if sys.version_info > (3, 0) and isinstance(content, bytes):
mode = 'bw'
else:
mode = 'w'
with open(fpath, mode) as f:
f.write(content)
else:
raise RuntimeError('No such object "%s"' % object_name)
def delete_backup_data(self, object_name):
"""
Argument:
object_name: delete target object name
"""
if isinstance(object_name, list):
# for multiple arguments
[self.delete_backup_data(obj) for obj in object_name]
elif (client.is_container(self.token, self.storage_url,
self.container_name, verify=self.verify) and
client.is_object(self.token, self.storage_url,
self.container_name, object_name,
verify=self.verify)):
rc = client.delete_object(self.token,
self.storage_url,
self.container_name,
object_name,
verify=self.verify)
if not rc == 204:
raise RuntimeError('Failed to delete the object "%s"'
% object_name)
return True
else:
raise RuntimeError('No such object "%s"' % object_name)
|