Python implements a method to get the specified file on the client and transfer it to the server

This article illustrates how a python implementation can get the specified file on the client and transfer it to the server. Share with you for your reference. Specific analysis is as follows:

The program realizes that all the files of a certain type in a directory of the target machine (controllable) are obtained and transmitted to the machine of the target machine.

1, used base64 encode(infile,outfile) encryption, and decode(infile,outfile) decryption, which is binary encryption decryption
2. Zip it
3. Socket server. Py on its own side of the python server
4, the procedure set to get doc files, modify extName can get other types of files

Server-side program:

# -*- coding: cp936 -*-

import socket

import win32com.client

import os

import zipfile

import codecs

import base64

def main():

    HOST = '127.0.0.1'

    PORT = 2000

    BUF_SIZE = 6553500 #6M

    key = 'ouyang'

    timeout = 5

    dicName = "ouyang\"

    ss = socket.socket(socket.AF_INET,socket.SOCK_STREAM)

    try:

        ss.bind((HOST,PORT))

        ss.listen(5)

        print "wating for conntecting..."

        while True:

            try:

                cs,addr = ss.accept()

                socket.setdefaulttimeout(timeout)

                cs.send("200 Connected!")

                # Get encrypted data 

                encode_data = cs.recv(BUF_SIZE)

                # Write data to out.zip file 

                tmpfile = open('out.tmp','wb')

                try:

                    tmpfile.write(encode_data)

                    tmpfile.close()

                except IOError,e:

                    print 'Strange error creating IOError:%s' % e  

                    tmpfile.close()

                finally:

                    tmpfile.close()

                #base64 decode 2 Into the system   decryption  decode(infile,outfile)

                tmpfile = open('out.tmp','rb')

                outfile = open('out.zip','wb')

                base64.decode(tmpfile,outfile)

                tmpfile.close()

                outfile.close()

                # Open the zip file 

                zfile = zipfile.ZipFile('out.zip','r')

                # Create a folder to hold the retrieved zip file 

                if not os.path.exists(dicName):

                    os.mkdir(dicName)

                for f in zfile.namelist():

                    data = zfile.read(f)

                    file = open(dicName+os.path.basename(f),'w+b')

                    file.write(data)

                    file.close()

                print "finished!!!"

                zfile.close()

                # Subsequent processing   Delete temporary file 

                os.remove('out.tmp')

                cs.close()

            except socket.error, e:  

                print 'Strange error creating socket:%s' % e  

                cs.close()

        ss.close()

    except socket.error, e:

        print 'Strange error creating socket:%s' % e  

        ss.close()

if __name__=='__main__':

    main()

Client program:

# -*- coding: cp936 -*-

import socket

import win32com.client

import win32api

import os

import time

import zipfile

import codecs

import base64

def walk_dir(dir,filelist,extName,topdown=True):

    for root, dirs, files in os.walk(dir, topdown):

        for name in files:

            if (os.path.splitext(os.path.join(root,name)))[-1] == extName:

                filelist.append(os.path.join(root,name))      

        for name in dirs:

            if (os.path.splitext(os.path.join(root,name)))[-1] == extName:

                filelist.append(os.path.join(root,name))

def main():       

    HOST = '127.0.0.1'

    PORT = 2000

    BUF_SIZE = 65535

    key = 'ouyang'

    dicName = "C:Documents and SettingsAdministrator My document "

    extName = '.doc'

    # Traversing the search for my document doc type 

    try:

        filelist = []

        walk_dir(dicName,filelist,extName)

    except IOError,e:

        print " File handling error : " % e

        sys.exit(-1)

    cs = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 

    try:

        cs.connect((HOST,PORT))

        print cs.recv(BUF_SIZE)

        # Compressed into zip file 

        zfile = zipfile.ZipFile('in.zip','w',zipfile.ZIP_DEFLATED)

        for f in filelist:

            zfile.write(f)

        zfile.close()

        #base 2 Into the system   encryption  encode(infile,outfile)

        infile = open('in.zip','rb')

        tmpfile = open('in.tmp','wb')

        base64.encode(infile,tmpfile)

        infile.close()

        tmpfile.close()

        #send

        tmpfile = open('in.tmp','rb')

        cs.send(tmpfile.read())

        tmpfile.close()

        # Subsequent processing   Delete intermediate file 

        os.remove('in.tmp')

        cs.close()

    except socket.error ,e:

        print 'socket  Error: ' % e

        cs.close()

if __name__=='__main__':

    main()

I hope this article has helped you with your Python programming.