80 ftp上传下载

共计 5802 个字符，预计需要花费 15 分钟才能阅读完成。

支持动态更换 IP 和端口, 上传下载, 进度条显示, 正则校验文件格式, hash 校验文件完整性

另有已封装好的 exe 文件

客户端

# coding=utf-8
from socket import *
import json
import struct
import os,re
import hashlib

ip = 0
port = 0

# 打印进度条
def progress(percent, symbol='█', width=40):
    if percent > 1:  # 超过 100% 的时候让其停在 1
        percent = 1  # 可以避免进度条溢出
    show_progress = ("▌%%-%ds▌" % width) % (int(percent * width) * symbol)
    print("\r%s %.2f%%" % (show_progress, percent * 100), end='')

# hash 校验
def Hash_md5(file_path:str):
    m = hashlib.md5()
    m.update(str(os.path.getsize(file_path)).encode("utf-8"))
    return m.hexdigest()

# 连接
def connection():
    client = socket(AF_INET,SOCK_STREAM)
    client.connect((ip,port))
    return client


# 下载
def download(client):
    client.send("1".encode("utf-8"))
    while 1:
        try:
            file_path = input("Please enter the file path(q/exit)>>").strip()
            if file_path.lower() == "q":break
            if len(file_path) == 0:continue
            to_path = input("Please enter the save directory(q/back)>>").strip()
            if to_path.lower() == "q":continue
            if not os.path.isdir(to_path):
                print("not find");continue
            else:
                file_name = input("Please enter filename(q/back)>>").strip()
                if file_name.lower() == "q":continue
                if re.search(r'[/|:*"<>\\]',file_name):
                    print(r'Filenames cannot have these symbols:/|:*"<>\\');continue
                goal_path = os.path.join(to_path,file_name)
            client.send(file_path.encode("utf-8"))
            bytes_4 = client.recv(4)
            if bytes_4.decode("utf-8") == "4044":
                print("not find");continue
            else:
                header_bytes_len = struct.unpack("i",bytes_4)[0]
                header_bytes = client.recv(header_bytes_len)
                header_dic = json.loads(header_bytes.decode("utf-8"))
                date_len = header_dic["file_size"]
                hash_md5 = header_dic["hash"]
                recv_len = 0
                with open(goal_path,"wb")as f:
                    while 1:
                        date = client.recv(1024)
                        recv_len += len(date)
                        percent = recv_len / date_len  # 接收的比例
                        progress(percent, width=40)    # 进度条的宽度 40
                        f.write(date)
                        if recv_len == date_len: break

                if hash_md5 == Hash_md5(goal_path):          # hash 值校验
                    print("\nHash auth succeed\nFile saved...")
                    continue
                else:
                    os.remove(goal_path)               # 校验失败内容删除
                    print("Hash auth failed!!")
        except Exception as E:
            print(E);break

# 上传
def uploading(client):
    client.send("2".encode("utf-8"))
    while 1:
        try:
            file_path = input("Please enter the path of the uploaded file(q/exit)>>").strip()
            if file_path.lower() == "q":break
            file_path = os.path.normpath(file_path)
            if not os.path.isfile(file_path):
                print("not find");continue
            goal_path = input("Please enter the destination path(q/back)>>").strip()
            if goal_path.lower() == "q":continue
            goal_path = os.path.normpath(goal_path)
            client.send(goal_path.encode("utf-8"))
            bytes_4 = client.recv(4)
            if bytes_4.decode("utf-8") == "4044":
                print("not find");continue
            else:
                file_name = input("Please name the new file(q/back)>>").strip()
                if file_name.lower() == "q":continue
                if re.search(r'[/|:*"<>\\]',file_name):
                    print(r'Filenames cannot have these symbols:/|:*"<>\\');continue
                goal_file_path = os.path.join(goal_path,file_name)
                file_size = os.path.getsize(file_path)
                file_name = os.path.basename(file_path)
                md5 = Hash_md5(file_path)
                header_dic = {"file_name": file_name, "file_size": file_size, "hash": md5,"file_path":goal_file_path}
                header_json = json.dumps(header_dic)
                header_bytes = header_json.encode("utf-8")
                header_bytes_len = struct.pack("i", len(header_bytes))
                client.send(header_bytes_len)
                client.send(header_bytes)
                send_len = 0
                with open(file_path, "rb")as f:
                    for line in f:
                        send_len += len(line)
                        percent = send_len / file_size # 接收的比例
                        progress(percent, width=40)    # 进度条的宽度 40
                        client.send(line)
                    print("\nsuccessfully upload!")
        except Exception as E:
            print(E);break

func_dic = {"1":["download ",download],
    "2":["upload",uploading],
    "3":["IP Settings",download],
}

# 连接服务端 ip 和端口并选择功能
def run():
    while True:
        print("Please enter the correct IP and port")
        global ip,port
        ip = input("Please enter IP(q/exit)>>").strip()
        if ip.lower() == "q":break
        port = input("Please enter PORT(q/exit)>>").strip()
        if port.lower() == "q":break
        if port.isdigit():
            port = int(port)
        else:
            print("Please enter the number")
            continue
        try:
            client = connection()  # 检测连接是否建立成功
        except Exception as E:
            print(E);continue
        while 1:
            for k,v in func_dic.items():
                print(f"{k} : {v[0]}")
            select = input("Please select function>>")
            if select == "3":break
            if select in func_dic:
                func_dic[select][1](client)

run()

服务端

# coding=utf-8
from socket import *
import json
import struct
import os,hashlib

# 绑定服务端地址
def connection():
    server = socket(AF_INET,SOCK_STREAM)
    server.bind((ip,port))
    server.listen(5)
    return server

# 建立连接选择功能
def recv_send(server):
    while 1:
        print("connection...")
        conn,addr = server.accept()
        print(f"from {addr} conn")
        select = conn.recv(1)
        if select.decode("utf-8") == "1":
            download(conn)
        elif select.decode("utf-8") == "2":
            uploading(conn)

# 客户端下载
def download(conn):
    while 1:
        try:
            file_path = conn.recv(1024)
            file_path = os.path.normpath(file_path.decode("utf-8"))
            if not os.path.isfile(file_path):
                conn.send("4044".encode("utf-8"))
            else:
                file_size = os.path.getsize(file_path)
                file_name = os.path.basename(file_path)
                m = hashlib.md5()
                m.update(str(file_size).encode("utf-8"))
                md5 = m.hexdigest()
                header_dic = {"file_name":file_name,"file_size":file_size,"hash":md5}
                header_json = json.dumps(header_dic)
                header_bytes = header_json.encode("utf-8")
                header_bytes_len = struct.pack("i",len(header_bytes))
                conn.send(header_bytes_len)
                conn.send(header_bytes)
                with open(file_path,"rb")as f:
                    for line in f:
                        conn.send(line)
        except Exception:
            break

# 客户端的上传
def uploading(conn):
    while 1:
        try:
            dir_path = conn.recv(1024)
            dir_path = os.path.normpath(dir_path.decode("utf-8"))
            if not os.path.isdir(dir_path):
                conn.send("4044".encode("utf-8"));continue
            else:
                conn.send("4444".encode("utf-8"))
                bytes_4 = conn.recv(4)
                header_bytes_len = struct.unpack("i", bytes_4)[0]
                header_bytes = conn.recv(header_bytes_len)
                header_dic = json.loads(header_bytes.decode("utf-8"))
                date_len = header_dic["file_size"]
                goal_file_path = header_dic["file_path"]
                recv_len = 0
                with open(goal_file_path, "wb")as f:
                    while 1:
                        date = conn.recv(1024)
                        recv_len += len(date)
                        f.write(date)
                        if recv_len == date_len: break
                continue
        except Exception as E:
            print(E);break

def run():
    while True:
        print("Please enter the correct IP and port")
        global ip, port
        ip = input("Please enter IP(q/exit)>>").strip()
        if ip.lower() == "q": break
        port = input("Please enter PORT(q/exit)>>").strip()
        if port.lower() == "q": break
        if port.isdigit():
            port = int(port)
            try:
                server = connection()
            except Exception as E:
                print(E);continue
            recv_send(server)
        else:
            print("Please enter the number")
            continue

run()