Python implements simple File Transfer and shares with MySQL backup scripts,

Python implements simple File Transfer and shares with MySQL backup scripts,

Use python to implement simple Server/Client file transmission:

Server:

#!/usr/bin/pythonimport SocketServer, timeclass MyServer(SocketServer.BaseRequestHandler):userInfo = {'leonis' : 'leonis','hudeyong' : 'hudeyong','mudan' : 'mudan' }def handle(self):print 'Connected from', self.client_addresswhile True:receivedData = self.request.recv(8192)if not receivedData:continueelif receivedData == 'Hi, server':self.request.sendall('hi, client')elif receivedData.startswith('name'):self.clientName = receivedData.split(':')[-1]if MyServer.userInfo.has_key(self.clientName):self.request.sendall('valid')else:self.request.sendall('invalid')elif receivedData.startswith('pwd'):self.clientPwd = receivedData.split(':')[-1]if self.clientPwd == MyServer.userInfo[self.clientName]:self.request.sendall('valid')time.sleep(5)sfile = open('down.sh', 'rb')while True:data = sfile.read(1024)if not data:breakwhile len(data) > 0:intSent = self.request.send(data)data = data[intSent:]time.sleep(3)self.request.sendall('EOF')else:self.request.sendall('invalid')elif receivedData == 'bye':breakself.request.close()print 'Disconnected from', self.client_addressprintif __name__ == '__main__':print 'Server is started\nwaiting for connection…\n'srv = SocketServer.ThreadingTCPServer(('ip', 50000), MyServer)srv.serve_forever()

Client:

import socket, timeclass MyClient:def __init__(self):print 'Prepare for connecting…'def connect(self):sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)sock.connect(('ip', 50000))sock.sendall('Hi, server')self.response = sock.recv(8192)print 'Server:', self.responseself.s = raw_input("Server: Do you want get the 'thinking in python' file?(y/n):")if self.s == 'y':while True:self.name = raw_input('Server: input our name:')sock.sendall('name:' + self.name.strip())self.response = sock.recv(8192)if self.response == 'valid':breakelse:print 'Server: Invalid username'while True:self.pwd = raw_input('Server: input our password:')sock.sendall('pwd:' + self.pwd.strip())self.response = sock.recv(8192)if self.response == 'valid':print 'please wait…'f = open('down.sh', 'wb')while True:data = sock.recv(1024)if data == 'EOF':breakf.write(data)f.flush()f.close()print 'download finished'breakelse:print 'Server: Invalid password'sock.sendall('bye')sock.close()print 'Disconnected'if __name__ == '__main__':client = MyClient()client.connect()

Due to concerns about Server data security, This script can be used together with the Server/Client files shared above to back up website data locally, which is secure and reliable.

#! /Usr/bin/python # Filename: webbak. pyimport osimport timeimport tarfile OS. chdir ('/home/web /') # Switch the directory source = 'leonis 'bakdir = '/home/web/leonis/' # mysql dumpdump = 'mysqldump 'dbuser = 'xxxxxxxx' dbpwd = 'xxxxxxxxxxxx' dbname = 'xxxxxxxx 'sqlfile = '/home/web/leonis. SQL 'SQL = "% s-u % s-p % s> % s" % (dump, dbuser, dbpwd, dbname, sqlfile) if OS. path. exists (sqlfile): OS. remove (sqlfile) else: print 'then w Ill dump SQL file 'result = OS. popen (SQL) if result: # print ("SQL backup completed! ") Else: print (" SQL backup failed! ") # Gzip compression name: filename = bakdir + time.strftime('policy?m=d'{}'.tar.gz 'tar = tarfile. open (filename," w: gz ") tar. add (source) tar. close ()

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