目录
一. Python搭建FTP服务器
1. 搭建FTP服务器的Server端
# -*- coding:utf-8 -*-
from pyftpdlib.authorizers import DummyAuthorizer
from pyftpdlib.handlers import FTPHandler
from pyftpdlib.servers import FTPServer
# 实例化DummyAuthorizer来创建ftp用户
authorizer = DummyAuthorizer()
# 参数:用户名,密码,目录,权限
authorizer.add_user('admin','123456',r'C:\Users\Administrator\Desktop\ftp',perm='elradfmwMT')
# 匿名登录
# authorizer.add_anonymous('/home/nobody')
handler = FTPHandler
handler.authorizer = authorizer
# 参数:IP,端口,handler
server = FTPServer(('0.0.0.0',2121),handler) #设置为0.0.0.0为本机的IP地址
server.serve_forever()
2. FTP服务器的客户端连接
# -*- coding: utf-8 -*-
from ftplib import FTP
import time,tarfile,os
#连接ftp
def ftpconnect(host,port,username,password):
ftp = FTP()
# 打开调试级别2,显示详细信息
# ftp.set_debuglevel(2)
ftp.connect(host,port)
ftp.login(username,password)
return ftp
#从ftp下载文件
def downloadfile(ftp,remotepath,localpath):
# 设置的缓冲区大小
bufsize = 1024
fp = open(localpath,'wb')
ftp.retrbinary('RETR ' + remotepath,fp.write,bufsize)
ftp.set_debuglevel(0)# 参数为0,关闭调试模式
fp.close()
#从本地上传文件到ftp
def uploadfile(ftp,localpath):
bufsize = 1024
fp = open(localpath,'rb')
ftp.storbinary('STOR ' + remotepath,fp,bufsize)
ftp.set_debuglevel(0)
fp.close()
if __name__ == "__main__":
#host,password
ftp = ftpconnect("192.168.10.113",2121,"admin","123456")
#下载文件,第一个是ftp服务器路径下的文件,第二个是要下载到本地的路径文件
downloadfile(ftp,"/12.mp3",r"C:\Users\Administrator\Desktop\ftp\download\test.mp3")
# 上传文件,第一个是要上传到ftp服务器路径下的文件,第二个是本地要上传的的路径文件
uploadfile(ftp,'/upload/1.txt',"C:/Users/Administrator/Desktop/1.txt")
# ftp.close() #关闭ftp
# #调用本地播放器播放下载的视频
# os.system('start D:\soft\kugou\KGMusic\KuGou.exe C:\Users\Administrator\Desktop\ftp\test.mp3')
print(ftp.getwelcome())# 打印出欢迎信息
# 获取当前路径
pwd_path = ftp.pwd()
print("FTP当前路径:",pwd_path)
# 显示目录下所有目录信息
# ftp.dir()
# 设置FTP当前操作的路径
ftp.cwd('/upload/')
# 返回一个文件名列表
filename_list = ftp.nlst()
print(filename_list)
ftp.mkd('目录名')# 新建远程目录
ftp.rmd('目录名') # 删除远程目录
ftp.delete('文件名') # 删除远程文件
ftp.rename('fromname','toname') # 将fromname修改名称为toname
# 逐行读取ftp文本文件
file = '/upload/1.txt'
# ftp.retrlines('RETR %s' % file)
#与 retrlines()类似,只是这个指令处理二进制文件。回调函数 cb 用于处理每一块(块大小默认为 8KB)下载的数据
# ftp.retrbinary('RETR %s' % file)
二. FTP函数释义
Python中默认安装的ftplib模块定义了ftp类,其中函数有限,可用来实现简单的ftp客户端,用于上传或下载文件,函数列举如下
ftp登陆连接
from ftplib import FTP #加载ftp模块
ftp=FTP() #设置变量
ftp.set_debuglevel(2) #打开调试级别2,显示详细信息
ftp.connect("IP","port") #连接的ftp sever和端口
ftp.login("user","password") #连接的用户名,密码
print ftp.getwelcome() #打印出欢迎信息
ftp.cmd("xxx/xxx") #进入远程目录
bufsize=1024 #设置的缓冲区大小
filename="filename.txt" #需要下载的文件
file_handle=open(filename,"wb").write #以写模式在本地打开文件
ftp.retrbinaly("RETR filename.txt",file_handle,bufsize) #接收服务器上文件并写入本地文件
ftp.set_debuglevel(0) #关闭调试模式
ftp.quit() #退出ftp
ftp相关命令操作
ftp.cwd(pathname) #设置FTP当前操作的路径
ftp.dir() #显示目录下所有目录信息
ftp.nlst() #获取目录下的文件
ftp.mkd(pathname) #新建远程目录
ftp.pwd() #返回当前所在位置
ftp.rmd(dirname) #删除远程目录
ftp.delete(filename) #删除远程文件
ftp.rename(fromname,toname)#将fromname修改名称为toname。
ftp.storbinaly("STOR filename.txt",file_handel,bufsize) #上传目标文件
ftp.retrbinary("RETR filename.txt",bufsize) #下载FTP文件
FTP.quit()与FTP.close()的区别
FTP.quit():发送QUIT命令给服务器并关闭掉连接。这是一个比较“缓和”的关闭连接方式,但是如果服务器对QUIT命令返回错误时,会抛出异常。
FTP.close():单方面的关闭掉连接,不应该用在已经关闭的连接之后,例如不应用在FTP.quit()之后。
FTP对象方法说明
login(user=’anonymous’,passwd=”,acct=”) 登录 FTP 服务器,所有参数都是可选的
pwd() 获得当前工作目录
cwd(path) 把当前工作目录设置为 path 所示的路径
dir ([path[,…[,cb]]) 显示 path 目录里的内容,可选的参数 cb 是一个回调函数,会传递给 retrlines()方法
nlst ([path[,…]) 与 dir()类似, 但返回一个文件名列表,而不是显示这些文件名
retrlines(cmd [,cb]) 给定 FTP命令(如“ RETR filename”),用于下载文本文件。可选的回调函数 cb 用于处理文件的每一行
retrbinary(cmd,cb[,bs=8192[,ra]]) 与 retrlines()类似,只是这个指令处理二进制文件。回调函数 cb 用于处理每一块(块大小默认为 8KB)下载的数据
storlines(cmd,f) 给定 FTP 命令(如“ STOR filename”),用来上传文本文件。要给定一个文件对象 f
storbinary(cmd,f,[,bs=8192]) 与 storlines()类似,只是这个指令处理二进制文件。要给定一个文件对象 f,上传块大小 bs 默认为 8KB
rename(old,new) 把远程文件 old 重命名为 new
delete(path) 删除位于 path 的远程文件
mkd(directory) 创建远程目录
rmd(directory) 删除远程目录
quit() 关闭连接并退出
三. 查看目录结构
ftp.dir() 能显示目录下的文件信息,考虑到要分别对文件夹个数和文件数目进行统计,文件夹下存在文件夹和文件嵌套;将dir()后的目录信息放入列表,对列表进行操作;进入子文件夹后进行递归调用操作。
# -*- coding: utf-8 -*-
from ftplib import FTP
ftp = FTP()
ftp.connect('132.121.xx.xxx','xx909')
ftp.login('crmyun_xxx','wyjjjjxJ')
sum1 = 0
sum2 = 0
value = 0
def search_file(start_dir):
ftp.cwd(start_dir)
print ftp.pwd()
dir_res = []
ftp.dir('.',dir_res.append) #对当前目录进行dir(),将结果放入列表
for i in dir_res:
if i.startswith("d"):
global sum1
sum1 += 1
search_file(ftp.pwd()+"/"+i.split(" ")[-1])
ftp.cwd('..')
else:
global sum2,value
sum2 += 1
val = i.split(" ")[-1]
value += ftp.size(val)
if ftp.pwd().endswith('/'):
# print ftp.pwd()+val+" "+str(ftp.size(val))+" B" #打印出每个文件路径和大小
pass
else:
# print ftp.pwd()+"/"+val+" "+str(ftp.size(val))+" B"
pass
def sum_file(file_path):
search_file(file_path)
print "folder number is "+str(sum1)+",file number is "+str(sum2)+",Totle size is "+str(value)+" B"
if __name__ == '__main__':
sum_file("/apps/crmyun/crmyun_755")
展示结果:
四. 上传下载程序
完整上传程序
Python中默认安装的ftplib模块定义了ftp类,其中函数有限,可用来实现简单的ftp客户端,用于上传或下载文件
# coding: utf-8
from ftplib import FTP
import time
import tarfile
import os
# !/usr/bin/python
# -*- coding: utf-8 -*-
from ftplib import FTP
def ftpconnect(host,password):
ftp = FTP()
# ftp.set_debuglevel(2)
ftp.connect(host,21)
ftp.login(username,password)
return ftp
#从ftp下载文件
def downloadfile(ftp,localpath):
bufsize = 1024
fp = open(localpath,'wb')
ftp.retrbinary('RETR ' + remotepath,bufsize)
ftp.set_debuglevel(0)
fp.close()
#从本地上传文件到ftp
def uploadfile(ftp,'rb')
ftp.storbinary('STOR ' + remotepath,bufsize)
ftp.set_debuglevel(0)
fp.close()
if __name__ == "__main__":
ftp = ftpconnect("113.105.139.xxx","ftP***","Guest***")
downloadfile(ftp,"Faint.mp4","C:/Users/Administrator/Desktop/test.mp4")
#调用本地播放器播放下载的视频
os.system('start "C:\Program Files\Windows Media Player\wmplayer.exe" "C:/Users/Administrator/Desktop/test.mp4"')
uploadfile(ftp,"C:/Users/Administrator/Desktop/test.mp4","test.mp4")
ftp.quit()
server main 代码:
# _*_ coding:utf-8 _*_
import os,sys,json,hashlib,socketserver,time
base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.append(base_dir)
from conf import userdb_set
class Ftp_server(socketserver.BaseRequestHandler):
user_home_dir = ''
def auth(self,*args):
'''验证用户名及密码'''
cmd_dic = args[0]
username = cmd_dic["username"]
password = cmd_dic["password"]
f = open(userdb_set.userdb_set(),'r')
user_info = json.load(f)
if username in user_info.keys():
if password == user_info[username]:
self.request.send('0'.encode())
os.chdir('/home/%s' % username)
self.user_home_dir = os.popen('pwd').read().strip()
data = "%s login successed" % username
self.loging(data)
else:
self.request.send('1'.encode())
data = "%s login Failed" % username
self.loging(data)
f.close
else:
self.request.send('1'.encode())
data = "%s login Failed" % username
self.loging(data)
f.close
##########################################
def get(self,*args):
'''给客户端传输文件'''
request_code = {
'0': 'file is ready to get','1': 'file not found!'
}
cmd_dic = args[0]
self.loging(json.dumps(cmd_dic))
filename = cmd_dic["filename"]
if os.path.isfile(filename):
self.request.send('0'.encode('utf-8')) # 确认文件存在
self.request.recv(1024)
self.request.send(str(os.stat(filename).st_size).encode('utf-8'))
self.request.recv(1024)
m = hashlib.md5()
f = open(filename,'rb')
for line in f:
m.update(line)
self.request.send(line)
self.request.send(m.hexdigest().encode('utf-8'))
print('From server:Md5 value has been sended!')
f.close()
else:
self.request.send('1'.encode('utf-8'))
###########################################
def cd(self,*args):
'''执行cd命令'''
user_current_dir = os.popen('pwd').read().strip()
cmd_dic = args[0]
self.loging(json.dumps(cmd_dic))
path = cmd_dic['path']
if path.startswith('/'):
if self.user_home_dir in path:
os.chdir(path)
new_dir = os.popen('pwd').read()
user_current_dir = new_dir
self.request.send('Change dir successfully!'.encode("utf-8"))
data = 'Change dir successfully!'
self.loging(data)
elif os.path.exists(path):
self.request.send('Permission Denied!'.encode("utf-8"))
data = 'Permission Denied!'
self.loging(data)
else:
self.request.send('Directory not found!'.encode("utf-8"))
data = 'Directory not found!'
self.loging(data)
elif os.path.exists(path):
os.chdir(path)
new_dir = os.popen('pwd').read().strip()
if self.user_home_dir in new_dir:
self.request.send('Change dir successfully!'.encode("utf-8"))
user_current_dir = new_dir
data = 'Change dir successfully!'
self.loging(data)
else:
os.chdir(user_current_dir)
self.request.send('Permission Denied!'.encode("utf-8"))
data = 'Permission Denied!'
self.loging(data)
else:
self.request.send('Directory not found!'.encode("utf-8"))
data = 'Directory not found!'
self.loging(data)
###########################################
def rm(self,*args):
request_code = {
'0': 'file exist,and Please confirm whether to rm','1': 'file not found!'
}
cmd_dic = args[0]
self.loging(json.dumps(cmd_dic))
filename = cmd_dic['filename']
if os.path.exists(filename):
self.request.send('0'.encode("utf-8")) # 确认文件存在
client_response = self.request.recv(1024).decode()
if client_response == '0':
os.popen('rm -rf %s' % filename)
self.request.send(('File %s has been deleted!' % filename).encode("utf-8"))
self.loging('File %s has been deleted!' % filename)
else:
self.request.send(('File %s not deleted!' % filename).encode("utf-8"))
self.loging('File %s not deleted!' % filename)
else:
self.request.send('1'.encode("utf-8"))
########################################
def pwd(self,*args):
'''执行pwd命令'''
cmd_dic = args[0]
self.loging(json.dumps(cmd_dic))
server_response = os.popen('pwd').read().strip().encode("utf-8")
self.request.send(server_response)
#############################################
def ls(self,*args):
'''执行ls命名'''
cmd_dic = args[0]
self.loging(json.dumps(cmd_dic))
path = cmd_dic['path']
cmd = 'ls -l %s' % path
server_response = os.popen(cmd).read().encode("utf-8")
self.request.send(server_response)
############################################
def put(self,*args):
'''接收客户端文件'''
cmd_dic = args[0]
self.loging(json.dumps(cmd_dic))
filename = cmd_dic["filename"]
filesize = cmd_dic["size"]
if os.path.isfile(filename):
f = open(filename + '.new','wb')
else:
f = open(filename,'wb')
request_code = {
'200': 'Ready to recceive data!','210': 'Not ready to received data!'
}
self.request.send('200'.encode())
receive_size = 0
while True:
if receive_size < filesize:
data = self.request.recv(1024)
f.write(data)
receive_size += len(data)
else:
data = "File %s has been uploaded successfully!" % filename
self.loging(data)
print(data)
break
################################################
def mkdir(self,*args):
request_code = {
'0': 'Directory has been made!','1': 'Directory is aleady exist!'
}
cmd_dic = args[0]
self.loging(json.dumps(cmd_dic))
dir_name = cmd_dic['dir_name']
if os.path.exists(dir_name):
self.request.send('1'.encode("utf-8"))
else:
os.popen('mkdir %s' % dir_name)
self.request.send('0'.encode("utf-8"))
#############################################
def loging(self,data):
'''日志记录'''
localtime = time.asctime(time.localtime(time.time()))
log_file = '/root/ftp/ftpserver/log/server.log'
with open(log_file,'a',encoding='utf-8') as f:
f.write('%s-->' % localtime + data + '\n')
##############################################
def handle(self):
# print("您本次访问使用的IP为:%s" %self.client_address[0])
# localtime = time.asctime( time.localtime(time.time()))
# print(localtime)
while True:
try:
self.data = self.request.recv(1024).decode() #
# print(self.data)
cmd_dic = json.loads(self.data)
action = cmd_dic["action"]
# print("用户请求%s"%action)
if hasattr(self,action):
func = getattr(self,action)
func(cmd_dic)
except Exception as e:
self.loging(str(e))
break
def run():
HOST,PORT = '0.0.0.0',6969
print("The server is started,and listenning at port 6969")
server = socketserver.ThreadingTcpserver((HOST,PORT),Ftp_server)
server.serve_forever()
if __name__ == '__main__':
run()
#_*_ coding:utf-8 _*_
import os,sys
base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
userdb_file = base_dir+"\data\\userdb"
# print(userdb_file)
def userdb_set():
if os.path.isfile(userdb_file):
# print(userdb_file)
return userdb_file
else:
print('请先为您的服务器创建用户!')
user_data = {}
dict={}
Exit_flags = True
while Exit_flags:
username = input("Please input username:")
if username != 'exit':
password = input("Please input passwod:")
if password != 'exit':
user_data.update({username:password})
m = hashlib.md5()
# m.update('hello')
# print(m.hexdigest())
for i in user_data:
# print(i,user_data[i])
m.update(user_data[i].encode())
dict.update({i:m.hexdigest()})
else:
break
else:
break
f = open(userdb_file,'w')
json.dump(dict,f)
f.close()
return userdb_file
参考文章:
python的ftplib包介绍:https://docs.python.org/3/library/ftplib.html
https://blog.csdn.net/xc_zhou/article/details/81021414
https://www.jb51.net/article/142388.htm
https://www.jb51.net/article/109429.htm
https://www.cnblogs.com/hltswd/p/6228992.html
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