一、Socketserver实现FTP，文件上传、下载
目录结构
1、socketserver实现ftp文件上传下载，可以同时多用户登录、上传、下载
效果图：
二、上面只演示了下载，上传也是一样的，来不及演示了，上代码
1、客户端
import socket,hashlib,os,json,sys,time
class Ftpclient(object):
def __init__(self):
self.client = socket.socket()
def connect(self,ip,port):
self.client.connect((ip, port))
def help(self):
msg='''
ls
pwd
cd ..
get filename
put filename
'''
print(msg)
def interactive(self):
"""
客户端入口
:return:
"""
while True:
verify = self.authenticate() #服务器端认证
if verify:
while True:
cmd = input('输入命令 >>').strip()
if len(cmd) == 0:continue
cmd_str = cmd.split()[0]
if hasattr(self,'cmd_%s' %cmd_str):
func = getattr(self,'cmd_%s' %cmd_str)
func(cmd)
else:
self.help()
def cmd_put(self,*args):
"""
上传文件
:param args:
:return:
"""
cmd_solit = args[0].split()
start_time = self.alltime() # 开始时间
if len(cmd_solit) > 1:
filename = cmd_solit[1]
if os.path.isfile(filename):
filesize = os.stat(filename).st_size
msg_dic = {
'filename':filename,
'size':filesize,
'overridden':True,
'action':cmd_solit[0]
}
self.client.send( json.dumps(msg_dic).encode('utf-8'))
server_respinse=self.client.recv(1024) #防止粘包，等服务器确认返回
print('文件开始上传',server_respinse)
client_size = 0
f = open(filename,'rb')
for line in f:
client_size += self.client.send(line)
self.processBar(client_size,filesize) #进度条
else:
print('文件传输完毕,大小为 %s'%client_size)
end_time = self.alltime() # 结束时间
print('本次上传花费了%s 秒'%self.alltime(end_time,start_time))
f.close()
else:
print(filename,'文件不存在')
else:
print('输入有误！')
def cmd_get(self,*args):
"""
下载文件
:param args:
:return:
"""
cmd_solit = args[0].split()
start_time = self.alltime() # 开始时间
filename = cmd_solit[1]
if len(cmd_solit) > 1:
msg_dic = {
'filename': filename,
'size': '',
'overridden': True,
'action': cmd_solit[0],
'file_exist':''
}
self.client.send(json.dumps(msg_dic).encode('utf-8'))
self.data = self.client.recv(1024).strip()
cmd_dic = json.loads(self.data.decode('utf-8'))
print(cmd_dic)
if cmd_dic['file_exist']:
if os.path.isfile(filename):
f = open(filename + '.new', 'wb')
else:
f = open(filename, 'wb')
self.client.send(b'200 ok') #防止粘包，等服务器确认返回
client_size = 0
filesize = cmd_dic['size']
m = hashlib.md5()
while client_size < filesize:
data=self.client.recv(1024)
f.write(data)
client_size +=len(data)
m.update(data)
self.processBar(client_size, filesize)
else:
print('下载完毕')
end_time = self.alltime() # 结束时间
print('本次下载花费了%s 秒' % self.alltime(end_time, start_time))
f.close()
new_file_md5 = m.hexdigest()
server_file_md5 = self.client.recv(1024)
print('MD5', server_file_md5,new_file_md5)
else:
print('下载的 %s文件不存在'%filename)
else:
print('输入有误！')
def cmd_dir(self,*arge):
cmd_solit = arge[0].split()
if len(cmd_solit) > 0:
msg_dic = {
'action': cmd_solit[0]
}
self.client.send(json.dumps(msg_dic).encode())
cmd_dir = self.client.recv(1024)
print(cmd_dir.decode())
else:
print('输入错误！')
def alltime(self,*args):
"""
计算上传、下载时间
:param args:
:return:
"""
if args:
return round(args[0] - args[1])
else:
return time.time()
def processBar(self,num, total):
"""
进度条
:param num:文件总大小
:param total: 已存入文件大小
:return:
"""
rate = num / total
rate_num = int(rate * 100)
if rate_num == 100:
r = '\r%s>%d%%\n' % ('=' * int(rate_num /3), rate_num,)
else:
r = '\r%s>%d%%' % ('=' * int(rate_num /3), rate_num,)
sys.stdout.write(r)
sys.stdout.flush
def authenticate(self):
"""
用户加密认证
:return:
"""
username = input('输入用户名：>>')
password = input('输入密码：>>')
m = hashlib.md5()
if len(username) > 0 and len(password) >0:
username = ''.join(username.split())
password = ''.join(password.split())
m.update(username.encode('utf-8'))
m.update(password.encode('utf-8'))
m = {
'username':username,
'password':password,
'md5':m.hexdigest()
}
self.client.send(json.dumps(m).encode('utf-8'))
server_user_md5 = self.client.recv(1024).strip()
print(server_user_md5.decode())
if server_user_md5.decode() == 'success':
print('登录成功！')
return 'ok'
else:
print('用户名密码错误！')
else:
print('请输入用户名密码')
f = Ftpclient()
f.connect('localhost',9999)
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