Code of the rest of the code, the code process of some important code segments to backup, the following code content is about Python from the ftp server to download the file of the code, I hope to be able to small partners have the use of.
#coding=utf-8
'''
ftp autodownload, autoupload script with recursive directory manipulation
'''
from ftplib import FTP
import os,sys,string,datetime,time
import socket
class MYFTP:
def __init__(self, hostaddr, username, password, remotedir, port=21):
= hostaddr
= username
= password
= remotedir
= port
= FTP()
self.file_list = []
# .set_debuglevel(2)
def __del__(self):
()
# .set_debuglevel(0)
def login(self):
ftp =
try:
timeout = 300
(timeout)
ftp.set_pasv(True)
print u'Starting connection to %s' %()
(, )
print u'Successfully connected to %s' %()
print u'Start login to %s' %()
(, )
print u'Successfully logged in to %s' %()
debug_print(())
except Exception:
print u'Connection or login failed'
try:
()
except(Exception):
print u'Failed to switch directories'
def is_same_size(self, localfile, remotefile):
try:
remotefile_size = (remotefile)
except:
remotefile_size = -1
try:
localfile_size = (localfile)
except:
localfile_size = -1
debug_print('localfile_size:%d remotefile_size:%d' %(localfile_size, remotefile_size),)
if remotefile_size == localfile_size:
return 1
else:
return 0
def download_file(self, localfile, remotefile):
if self.is_same_size(localfile, remotefile):
debug_print(u'%s Same file size, no download required' %localfile)
return
else:
debug_print(u'>>>>>>>>>>>>>>>>>>>>>>>>Download file %s ... ...' %localfile)
#return
file_handler = open(localfile, 'wb')
(u'RETR %s'%(remotefile), file_handler.write)
file_handler.close()
def download_files(self, localdir='./', remotedir='./'):
try:
(remotedir)
except:
debug_print(u'Directory %s does not exist, continue...' %remotedir)
return
if not (localdir):
(localdir)
debug_print(u'Switch to directory %s' %())
self.file_list = []
(self.get_file_list)
remotenames = self.file_list
#print(remotenames)
#return
for item in remotenames:
filetype = item[0]
filename = item[1]
local = (localdir, filename)
if filetype == 'd':
self.download_files(local, filename)
elif filetype == '-':
self.download_file(local, filename)
('..')
debug_print(u'Return to upper directory %s' %())
def upload_file(self, localfile, remotefile):
if not (localfile):
return
if self.is_same_size(localfile, remotefile):
debug_print(u'Skip [equal]: %s' %localfile)
return
file_handler = open(localfile, 'rb')
('STOR %s' %remotefile, file_handler)
file_handler.close()
debug_print(u'Transmitted: %s' %localfile)
def upload_files(self, localdir='./', remotedir = './'):
if not (localdir):
return
localnames = (localdir)
(remotedir)
for item in localnames:
src = (localdir, item)
if (src):
try:
(item)
except:
debug_print(u'Directory already exists %s' %item)
self.upload_files(src, item)
else:
self.upload_file(src, item)
('..')
def get_file_list(self, line):
ret_arr = []
file_arr = self.get_filename(line)
if file_arr[1] not in ['.', '..']:
self.file_list.append(file_arr)
def get_filename(self, line):
pos = (':')
while(line[pos] != ' '):
pos += 1
while(line[pos] == ' '):
pos += 1
file_arr = [line[0], line[pos:]]
return file_arr
def debug_print(s):
print s
if __name__ == '__main__':
timenow = ()
datenow = ('%Y-%m-%d', timenow)
# Configure the following variables
hostaddr = '211.15.113.45' # ftp address
username = 'UserName' # Username
password = '123456' # Password
port = 21 # Port number
rootdir_local = 'E:/mypiv' # Local Catalog
rootdir_remote = '/PIV' # Remote directory
f = MYFTP(hostaddr, username, password, rootdir_remote, port)
()
f.download_files(rootdir_local, rootdir_remote)
timenow = ()
datenow = ('%Y-%m-%d', timenow)
logstr = u"%s Successfully executed backup n" %datenow
debug_print(logstr)
This is the whole content of this article.