ssh传文件加MD5

#server端
# -*- coding:utf-8 -*-
# Author：Brownyangyang
import socket,os,time
import hashlib

server = socket.socket()
server.bind(('localhost',9999))
server.listen()
while True:
    conn,addr = server.accept()
    print("new conn:",addr)

    while True:
        data = conn.recv(1024)
        if not data:
            print("客户端已断开")
            break

        cmd,filename = data.decode().split()
        print(filename)
        if os.path.isfile(filename):
            f = open(filename,"rb")
            m = hashlib.md5()
            file_size = os.stat(filename).st_size
            conn.send(str(file_size).encode())
            conn.recv(1024)  ##wait for ack
            for line in f:
                m.update(line)
                conn.send(line)
            print("file md5",m.hexdigest())
            f.close()
            conn.send(m.hexdigest().encode())

        print("send done")

server.close()

#client端
# -*- coding:utf-8 -*-
# Author：Brownyangyang
import  socket,hashlib
client = socket.socket()

client.connect(("localhost",9999))
while True:
    cmd = input(">>:").strip()
    if len(cmd) == 0: continue
    if cmd.startswith("get"):
        client.send(cmd.encode())
        server_response = client.recv(1024)
        print("server response",server_response)
        client.send(b"ready to recv file")
        file_total_size = int(server_response.decode())
        received_size = 0
        filename = cmd.split()[1]
        f = open(filename+".new","wb")
        m = hashlib.md5()
        while received_size < file_total_size:
            if file_total_size - received_size > 1024:
                size = 1024
            else:
                size = file_total_size - received_size
                print("last receive:",size)
            data = client.recv(size)
            received_size += len(data)
            m.update(data)
            f.write(data)
            #print(file_total_size,received_size)
        else:
            new_file_md5 = m.hexdigest()
            print("file recv done")
            f.close()
        server_file_md5 = client.recv(1024)
        print("server flie md5:",server_file_md5.decode())
        print("client file md5:",new_file_md5)

client.close()