import socket
import os
import time
import base64

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('127.0.0.1', 8001))
s.listen()
conn, address = s.accept()

data = conn.recv(1024)
print('已收到密文:')
print(data.decode())
#base64解密
miw = data.decode() #密文str
mingw = base64.b64decode(data) #明文依旧是bytes
mingw = mingw.decode()#将明文转为str
print('解密后明文:')
print(mingw)

time1 = time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time()))
os.chdir('/Users/ponny/pytest/exp/')
file=open ('exp-1.txt','w')
file.write(time1 + '\n收到密文：\n' + miw + '\n解密后明文:\n' + mingw)
file=open ('exp-1.txt','r')
j = file.read()
print('\n已写入文件：\n' + j)
file.close()

conn.sendall(time1.encode() + ('\n服务器已经解密并存储\n').encode() + mingw.encode())
s.close()