基于socket的文件传输并进行MD5值校验,供大家参考,具体内容如下

文件传输分为两个类,一个是服务端,一个是客户端。

客户端发起发送文件或接收文件的请求,服务端收到请求后接收或发送文件,最后进行MD5值的校验

socket数据通过struct模块打包

需要发送文件到服务端时,调用sendFile函数,struct包内包含文件信息、文件大小、文件MD5等信息,服务端接收到文件后进行MD5值校验,校验成功后则返回成功

需要从服务器下载文件时,调用recvFile函数,收到文件后进行MD5校验

client类代码如下

import socket
import struct,os
import subprocess
 
dataFormat='8s32s100s100sl'
 
class fileClient():
 def __init__(self,addr):
  self.addr = addr
  self.action = ''
  self.fileName = ''
  self.md5sum = ''
  self.clientfilePath = ''
  self.serverfilePath = ''
  self.size = 0
 
 def struct_pack(self):
  ret = struct.pack(dataFormat,self.action.encode(),self.md5sum.encode(),self.clientfilePath.encode(),
       self.serverfilePath.encode(),self.size)
  return ret
 
 def struct_unpack(self,package):
  self.action,self.md5sum,self.clientfilePath,self.serverfilePath,self.size = struct.unpack(dataFormat,package)
  self.action = self.action.decode().strip('\x00')
  self.md5sum = self.md5sum.decode().strip('\x00')
  self.clientfilePath = self.clientfilePath.decode().strip('\x00')
  self.serverfilePath = self.serverfilePath.decode().strip('\x00')
 
 def sendFile(self,clientfile,serverfile):
  if not os.path.exists(clientfile):
   print('源文件/文件夹不存在')
   return "No such file or directory"
  self.action = 'upload'
  (status, output) = subprocess.getstatusoutput("md5sum " + clientfile + " | awk '{printf $1}'")
  if status == 0:
   self.md5sum = output
  else:
   return "md5sum error:"+status
  self.size = os.stat(clientfile).st_size
  self.serverfilePath = serverfile
  self.clientfilePath = clientfile
  ret = self.struct_pack()
  s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  try:
   s.connect(self.addr)
   s.send(ret)
   recv = s.recv(1024)
   if recv.decode() == 'dirNotExist':
    print("目标文件/文件夹不存在")
    return "No such file or directory"
   elif recv.decode() == 'ok':
    fo = open(clientfile, 'rb')
    while True:
     filedata = fo.read(1024)
     if not filedata:
      break
     s.send(filedata)
    fo.close()
    recv = s.recv(1024)
    if recv.decode() == 'ok':
     print("文件传输成功")
     s.close()
     return 0
    else:
     s.close()
     return "md5sum error:md5sum is not correct!"
  except Exception as e:
   print(e)
   return "error:"+str(e)
 
 def recvFile(self,clientfile,serverfile):
  if not os.path.isdir(clientfile):
   filePath,fileName = os.path.split(clientfile)
  else:
   filePath = clientfile
  if not os.path.exists(filePath):
   print('本地目标文件/文件夹不存在')
   return "No such file or directory"
  self.action = 'download'
  self.clientfilePath = clientfile
  self.serverfilePath = serverfile
  s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  try:
   s.connect(self.addr)
   ret = self.struct_pack()
   s.send(ret)
   recv = s.recv(struct.calcsize(dataFormat))
   self.struct_unpack(recv)
   if self.action.startswith("ok"):
    if os.path.isdir(clientfile):
     fileName = (os.path.split(serverfile))[1]
     clientfile = os.path.join(clientfile, fileName)
    self.recvd_size = 0
    file = open(clientfile, 'wb')
    while not self.recvd_size == self.size:
     if self.size - self.recvd_size > 1024:
      rdata = s.recv(1024)
      self.recvd_size += len(rdata)
     else:
      rdata = s.recv(self.size - self.recvd_size)
      self.recvd_size = self.size
     file.write(rdata)
    file.close()
    print('\n等待校验...')
    (status, output) = subprocess.getstatusoutput("md5sum " + clientfile + " | awk '{printf $1}'")
    if output == self.md5sum:
     print("文件传输成功")
    else:
     print("文件校验不通过")
     (status, output) = subprocess.getstatusoutput("rm " + clientfile)
   elif self.action.startswith("nofile"):
    print('远程源文件/文件夹不存在')
    return "No such file or directory"
  except Exception as e:
   print(e)
   return "error:"+str(e)

server类代码如下

import socket
import struct,os
import subprocess
import socketserver
 
dataFormat='8s32s100s100sl'
 
class fileServer(socketserver.StreamRequestHandler):
 def struct_pack(self):
  ret = struct.pack(dataFormat, self.action.encode(), self.md5sum.encode(), self.clientfilePath.encode(),
       self.serverfilePath.encode(), self.size)
  return ret
 
 def struct_unpack(self, package):
  self.action, self.md5sum, self.clientfilePath, self.serverfilePath, self.size = struct.unpack(dataFormat,
                          package)
  self.action = self.action.decode().strip('\x00')
  self.md5sum = self.md5sum.decode().strip('\x00')
  self.clientfilePath = self.clientfilePath.decode().strip('\x00')
  self.serverfilePath = self.serverfilePath.decode().strip('\x00')
 
 def handle(self):
  print('connected from:', self.client_address)
  fileinfo_size = struct.calcsize(dataFormat)
  self.buf = self.request.recv(fileinfo_size)
  if self.buf:
   self.struct_unpack(self.buf)
   print("get action:"+self.action)
   if self.action.startswith("upload"):
    try:
     if os.path.isdir(self.serverfilePath):
      fileName = (os.path.split(self.clientfilePath))[1]
      self.serverfilePath = os.path.join(self.serverfilePath, fileName)
     filePath,fileName = os.path.split(self.serverfilePath)
     if not os.path.exists(filePath):
      self.request.send(str.encode('dirNotExist'))
     else:
      self.request.send(str.encode('ok'))
      recvd_size = 0
      file = open(self.serverfilePath, 'wb')
      while not recvd_size == self.size:
       if self.size - recvd_size > 1024:
        rdata = self.request.recv(1024)
        recvd_size += len(rdata)
       else:
        rdata = self.request.recv(self.size - recvd_size)
        recvd_size = self.size
       file.write(rdata)
      file.close()
      (status, output) = subprocess.getstatusoutput("md5sum " + self.serverfilePath + " | awk '{printf $1}'")
      if output == self.md5sum:
       self.request.send(str.encode('ok'))
      else:
       self.request.send(str.encode('md5sum error'))
    except Exception as e:
     print(e)
    finally:
     self.request.close()
   elif self.action.startswith("download"):
    try:
     if os.path.exists(self.serverfilePath):
      (status, output) = subprocess.getstatusoutput("md5sum " + self.serverfilePath + " | awk '{printf $1}'")
      if status == 0:
       self.md5sum = output
      self.action = 'ok'
      self.size = os.stat(self.serverfilePath).st_size
      ret = self.struct_pack()
      self.request.send(ret)
      fo = open(self.serverfilePath, 'rb')
      while True:
       filedata = fo.read(1024)
       if not filedata:
        break
       self.request.send(filedata)
      fo.close()
     else:
      self.action = 'nofile'
      ret = self.struct_pack()
      self.request.send(ret)
    except Exception as e:
     print(e)
    finally:
     self.request.close()

调用server,并开启服务

import fileSocket
import threading
import socketserver
import time
 
serverIp = '127.0.0.1'
serverPort = 19821
serverAddr = (serverIp,serverPort)
 
class fileServerth(threading.Thread):
 def __init__(self):
  threading.Thread.__init__(self)
  self.create_time = time.time()
  self.local = threading.local()
 
 def run(self):
  print("fileServer is running...")
  fileserver.serve_forever()
 
fileserver = socketserver.ThreadingTCPServer(serverAddr, fileSocket.fileServer)
fileserverth = fileServerth()
fileserverth.start()

调用client,发送/接受文件

import fileSocket
 
serverIp = '127.0.0.1'
serverPort = 19821
serverAddr = (serverIp,serverPort)
 
fileclient = fileSocket.fileClient(serverAddr)
fileclient.sendFile('fromClientPath/file','toServerPath/file')
fileclient.recvFile('toClientPath/file','fromServerPath/file')

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。

华山资源网 Design By www.eoogi.com
广告合作:本站广告合作请联系QQ:858582 申请时备注:广告合作(否则不回)
免责声明:本站资源来自互联网收集,仅供用于学习和交流,请遵循相关法律法规,本站一切资源不代表本站立场,如有侵权、后门、不妥请联系本站删除!
华山资源网 Design By www.eoogi.com

稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!

昨天有一位朋友在大神群里分享,自己亚服账号被封号之后居然弹出了国服的封号信息对话框。

这里面让他访问的是一个国服的战网网址,com.cn和后面的zh都非常明白地表明这就是国服战网。

而他在复制这个网址并且进行登录之后,确实是网易的网址,也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情,因为以前都没有出现这样的情况,现在突然提示跳转到国服战网的网址,是不是说明了简体中文客户端已经开始进行更新了呢?