<s> import gzip <EOL> import os <EOL> import re <EOL> from datetime import datetime <EOL> from flask import current_app <EOL> from ftplib import FTP , error_perm <EOL> from tempfile import mkstemp <EOL> from time import gmtime , strftime <EOL> from unipath import Path <EOL> class Backup ( object ) : <EOL> """<STR_LIT>""" <EOL> def __init__ ( self ) : <EOL> self . ftp = self . __get_ftp ( ) <EOL> self . path = self . __get_path ( ) <EOL> self . files = self . __get_files ( ) <EOL> self . file_prefix = '<STR_LIT>' <EOL> def create_file ( self , name , contents ) : <EOL> """<STR_LIT>""" <EOL> if not isinstance ( contents , bytes ) : <EOL> contents = contents . encode ( ) <EOL> tmp = mkstemp ( ) [ <NUM_LIT:1> ] <EOL> with gzip . open ( tmp , '<STR_LIT:wb>' ) as handler : <EOL> handler . write ( contents ) <EOL> if self . ftp : <EOL> self . ftp . storbinary ( '<STR_LIT>' . format ( name ) , open ( tmp , '<STR_LIT:rb>' ) ) <EOL> return '<STR_LIT>' . format ( self . path , name ) <EOL> else : <EOL> new_path = Path ( self . path ) . child ( name ) <EOL> tmp_path = Path ( tmp ) <EOL> tmp_path . copy ( new_path ) <EOL> if new_path . exists ( ) : <EOL> return new_path . absolute ( ) <EOL> return False <EOL> def read_file ( self , name ) : <EOL> """<STR_LIT>""" <EOL> if self . ftp : <EOL> path = mkstemp ( ) [ <NUM_LIT:1> ] <EOL> with open ( path , '<STR_LIT:wb>' ) as tmp : <EOL> self . ftp . retrbinary ( '<STR_LIT>' . format ( name ) , tmp . write ) <EOL> else : <EOL> path = Path ( self . path ) . child ( name ) <EOL> with gzip . open ( path , '<STR_LIT:rb>' ) as handler : <EOL> return handler . read ( ) <EOL> def delete_file ( self , name ) : <EOL> """<STR_LIT>""" <EOL> if self . ftp : <EOL> self . ftp . delete ( name ) <EOL> else : <EOL> path = Path ( self . path ) . child ( name ) <EOL> path . remove ( ) <EOL> def filter_files ( self , date_id ) : <EOL> """<STR_LIT>""" <EOL> return [ f for f in self . files if date_id == self . __get_id ( f ) ] <EOL> @ staticmethod <EOL> def create_id ( reference = False ) : <EOL> """<STR_LIT>""" <EOL> if not reference : <EOL> reference = gmtime ( ) <EOL> return str ( strftime ( "<STR_LIT>" , reference ) ) <EOL> def get_ids ( self ) : <EOL> """<STR_LIT>""" <EOL> file_ids = list ( ) <EOL> for f in self . files : <EOL> file_id = self . __get_id ( f ) <EOL> if file_id and file_id not in file_ids : <EOL> file_ids . append ( file_id ) <EOL> return file_ids <EOL> def valid ( self , date_id ) : <EOL> """<STR_LIT>""" <EOL> if date_id and date_id in self . get_ids ( ) : <EOL> return True <EOL> print ( '<STR_LIT>' ) <EOL> return False <EOL> def get_name ( self , date_id , class_name ) : <EOL> """<STR_LIT>""" <EOL> return '<STR_LIT>' . format ( self . file_prefix , date_id , class_name ) <EOL> @ staticmethod <EOL> def parsed_id ( date_id ) : <EOL> """<STR_LIT>""" <EOL> date_parsed = datetime . strptime ( date_id , '<STR_LIT>' ) <EOL> return date_parsed . strftime ( '<STR_LIT>' ) <EOL> def close_connection ( self ) : <EOL> """<STR_LIT>""" <EOL> if self . ftp : <EOL> self . ftp . quit ( ) <EOL> @ staticmethod <EOL> def __get_id ( file_name ) : <EOL> """<STR_LIT>""" <EOL> pattern = r'<STR_LIT>' <EOL> match = re . search ( pattern , file_name ) <EOL> if match : <EOL> return match . group ( <NUM_LIT:2> ) <EOL> return False <EOL> def __get_files ( self ) : <EOL> """<STR_LIT>""" <EOL> if self . ftp : <EOL> list_files = self . ftp . nlst ( ) <EOL> return [ f for f in list_files if self . __get_id ( f ) ] <EOL> else : <EOL> return [ f . name for f in Path ( self . path ) . listdir ( ) ] <EOL> def __get_path ( self ) : <EOL> """<STR_LIT>""" <EOL> if self . ftp : <EOL> if not self . ftp_path . startswith ( '<STR_LIT:/>' ) : <EOL> self . ftp_path = '<STR_LIT>' . format ( self . ftp_path ) <EOL> return '<STR_LIT>' . format ( self . ftp_server , <EOL> re . sub ( r'<STR_LIT>' , '<STR_LIT>' , self . ftp_path ) ) <EOL> else : <EOL> basedir = current_app . extensions [ '<STR_LIT>' ] . basedir <EOL> backup_dir = basedir . child ( '<STR_LIT>' ) <EOL> if not backup_dir . exists ( ) : <EOL> backup_dir . mkdir ( ) <EOL> path = str ( backup_dir . absolute ( ) ) <EOL> if path . endswith ( os . sep ) : <EOL> return path <EOL> return '<STR_LIT>' . format ( path , os . sep ) <EOL> def __get_ftp ( self ) : <EOL> server = current_app . config . get ( '<STR_LIT>' , False ) <EOL> user = current_app . config . get ( '<STR_LIT>' , False ) <EOL> password = current_app . config . get ( '<STR_LIT>' , False ) <EOL> path = current_app . config . get ( '<STR_LIT>' , False ) <EOL> mock_password = '<STR_LIT:*>' * len ( password ) if password else '<STR_LIT>' <EOL> address = '<STR_LIT>' . format ( user , mock_password , server , path ) <EOL> if server and user and password : <EOL> try : <EOL> ftp = FTP ( server , user , password ) <EOL> change_path = ftp . cwd ( path ) <EOL> if not change_path . startswith ( '<STR_LIT>' ) : <EOL> print ( "<STR_LIT>" + address ) <EOL> ftp . quit ( ) <EOL> except error_perm : <EOL> print ( "<STR_LIT>" + address ) <EOL> return False <EOL> self . ftp_server = server <EOL> self . ftp_path = path <EOL> return ftp </s>
