python實現檔案斷點續傳

#! /usr/bin/env python

# -*- coding:utf-8 -*-
import socket
import os
sock = socket.socket()
sock.bind(("127.0.0.1", 8080))
sock.listen(5)
had_recv = 0
while true:
conn, client_address = sock.accept()
first_recv = str(conn.recv(1024),encoding="utf-8")
src_path, file_size, dst_path = first_recv.split(" ",3)
total_size = int(file_size)
if os.path.exists(dst_path):
had_recv = os.stat(dst_path).st_size
conn.sendall(bytes("y-" + str(had_recv), encoding="utf-8"))
# 為了避免粘包問題
reponse = conn.recv(1024)
print(str(reponse, encoding="utf-8"))
f = open(dst_path, "ab")
else:
conn.sendall(bytes("n", encoding="utf-8"))
# 為了避免粘包問題
reponse = conn.recv(1024)
print(str(reponse, encoding="utf-8"))
f = open(dst_path, "wb")
#檔案已接收完，關閉連線，結束
while true:
if total_size == had_recv:
conn.close()
break
data = conn.recv(1024)
f.write(data)
had_recv += len(data)
print(had_recv,total_size)

client

#! /usr/bin/env python

# -*- coding:utf-8 -*-
import socket
import os
sock = socket.socket()
sock.bind(("127.0.0.1", 8080))
sock.listen(5)
had_recv = 0
while true:
conn, client_address = sock.accept()
first_recv = str(conn.recv(1024),encoding="utf-8")
src_path, file_size, dst_path = first_recv.split(" ",3)
total_size = int(file_size)
if os.path.exists(dst_path):
had_recv = os.stat(dst_path).st_size
conn.sendall(bytes("y-" + str(had_recv), encoding="utf-8"))
# 為了避免粘包問題
reponse = conn.recv(1024)
print(str(reponse, encoding="utf-8"))
f = open(dst_path, "ab")
else:
conn.sendall(bytes("n", encoding="utf-8"))
# 為了避免粘包問題
reponse = conn.recv(1024)
print(str(reponse, encoding="utf-8"))
f = open(dst_path, "wb")
#檔案已接收完，關閉連線，結束
while true:
if total_size == had_recv:
conn.close()
break
data = conn.recv(1024)
f.write(data)
had_recv += len(data)
print(had_recv,total_size)

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