本文实例为大家分享了python3实现ftp服务功能的具体代码，供大家参考，具体内容如下
功能介绍：
可执行的命令：
ls
pwd
cd
put
rm
get
mkdir
1、用户加密认证
2、允许多用户同时登陆
3、每个用户有自己的家目录，且只可以访问自己的家目录
4、运行在自己家目录下随意切换目录
5、允许上传下载文件，且文件一致
6、传输过程中显示进度条
server main 代码：
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# Author by Andy# _*_ coding:utf-8 _*_import os, sys, json, hashlib, socketserver, timebase_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))sys.path.append(base_dir)from conf import userdb_setclass Ftp_server(socketserver.BaseRequestHandler): user_home_dir = '' def auth(self, *args): '''验证用户名及密码''' cmd_dic = args[0] username = cmd_dic["username"] password = cmd_dic["password"] f = open(userdb_set.userdb_set(), 'r') user_info = json.load(f) if username in user_info.keys(): if password == user_info[username]: self.request.send('0'.encode()) os.chdir('/home/%s' % username) self.user_home_dir = os.popen('pwd').read().strip() data = "%s login successed" % username self.loging(data) else: self.request.send('1'.encode()) data = "%s login failed" % username self.loging(data) f.close else: self.request.send('1'.encode()) data = "%s login failed" % username self.loging(data) f.close ########################################## def get(self, *args): '''给客户端传输文件''' request_code = { '0': 'file is ready to get', '1': 'file not found!' } cmd_dic = args[0] self.loging(json.dumps(cmd_dic)) filename = cmd_dic["filename"] if os.path.isfile(filename): self.request.send('0'.encode('utf-8')) # 确认文件存在 self.request.recv(1024) self.request.send(str(os.stat(filename).st_size).encode('utf-8')) self.request.recv(1024) m = hashlib.md5() f = open(filename, 'rb') for line in f: m.update(line) self.request.send(line) self.request.send(m.hexdigest().encode('utf-8')) print('From server:Md5 value has been sended!') f.close() else: self.request.send('1'.encode('utf-8')) ########################################### def cd(self, *args): '''执行cd命令''' user_current_dir = os.popen('pwd').read().strip() cmd_dic = args[0] self.loging(json.dumps(cmd_dic)) path = cmd_dic['path'] if path.startswith('/'): if self.user_home_dir in path: os.chdir(path) new_dir = os.popen('pwd').read() user_current_dir = new_dir self.request.send('Change dir successfully!'.encode("utf-8")) data = 'Change dir successfully!' self.loging(data) elif os.path.exists(path): self.request.send('Permission Denied!'.encode("utf-8")) data = 'Permission Denied!' self.loging(data) else: self.request.send('Directory not found!'.encode("utf-8")) data = 'Directory not found!' self.loging(data) elif os.path.exists(path): os.chdir(path) new_dir = os.popen('pwd').read().strip() if self.user_home_dir in new_dir: self.request.send('Change dir successfully!'.encode("utf-8")) user_current_dir = new_dir data = 'Change dir successfully!' self.loging(data) else: os.chdir(user_current_dir) self.request.send('Permission Denied!'.encode("utf-8")) data = 'Permission Denied!' self.loging(data) else: self.request.send('Directory not found!'.encode("utf-8")) data = 'Directory not found!' self.loging(data) ########################################### def rm(self, *args): request_code = { '0': 'file exist,and Please confirm whether to rm', '1': 'file not found!' } cmd_dic = args[0] self.loging(json.dumps(cmd_dic)) filename = cmd_dic['filename'] if os.path.exists(filename): self.request.send('0'.encode("utf-8")) # 确认文件存在 client_response = self.request.recv(1024).decode() if client_response == '0': os.popen('rm -rf %s' % filename) self.request.send(('File %s has been deleted!' % filename).encode("utf-8")) self.loging('File %s has been deleted!' % filename) else: self.request.send(('File %s not deleted!' % filename).encode("utf-8")) self.loging('File %s not deleted!' % filename) else: self.request.send('1'.encode("utf-8")) ######################################## def pwd(self, *args): '''执行pwd命令''' cmd_dic = args[0] self.loging(json.dumps(cmd_dic)) server_response = os.popen('pwd').read().strip().encode("utf-8") self.request.send(server_response) ############################################# def ls(self, *args): '''执行ls命名''' cmd_dic = args[0] self.loging(json.dumps(cmd_dic)) path = cmd_dic['path'] cmd = 'ls -l %s' % path server_response = os.popen(cmd).read().encode("utf-8") self.request.send(server_response) ############################################ def put(self, *args): '''接收客户端文件''' cmd_dic = args[0] self.loging(json.dumps(cmd_dic)) filename = cmd_dic["filename"] filesize = cmd_dic["size"] if os.path.isfile(filename): f = open(filename + '.new', 'wb') else: f = open(filename, 'wb') request_code = { '200': 'Ready to recceive data!', '210': 'Not ready to received data!' } self.request.send('200'.encode()) receive_size = 0 while True: if receive_size < filesize: data = self.request.recv(1024) f.write(data) receive_size += len(data) else: data = "File %s has been uploaded successfully!" % filename self.loging(data) print(data) break ################################################ def mkdir(self, *args): request_code = { '0': 'Directory has been made!', '1': 'Directory is aleady exist!' } cmd_dic = args[0] self.loging(json.dumps(cmd_dic)) dir_name = cmd_dic['dir_name'] if os.path.exists(dir_name): self.request.send('1'.encode("utf-8")) else: os.popen('mkdir %s' % dir_name) self.request.send('0'.encode("utf-8")) ############################################# def loging(self, data): '''日志记录''' localtime = time.asctime(time.localtime(time.time())) log_file = '/root/ftp/ftpserver/log/server.log' with open(log_file, 'a', encoding='utf-8') as f: f.write('%s-->' % localtime + data + '\n') ############################################## def handle(self): # print("您本次访问使用的IP为:%s" %self.client_address[0]) # localtime = time.asctime( time.localtime(time.time())) # print(localtime) while True: try: self.data = self.request.recv(1024).decode() # # print(self.data) cmd_dic = json.loads(self.data) action = cmd_dic["action"] # print("用户请求%s"%action) if hasattr(self, action): func = getattr(self, action) func(cmd_dic) except Exception as e: self.loging(str(e)) breakdef run(): HOST, PORT = '0.0.0.0', 6969 print("The server is started,and listenning at port 6969") server = socketserver.ThreadingTCPServer((HOST, PORT), Ftp_server) server.serve_forever()if __name__ == '__main__': run() |
设置用户口令代码：
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#Author by Andy#_*_ coding:utf-8 _*_import os,json,hashlib,sysbase_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))userdb_file = base_dir+"\data\\userdb"# print(userdb_file)def userdb_set(): if os.path.isfile(userdb_file): # print(userdb_file) return userdb_file else: print('请先为您的服务器创建用户！') user_data = {} dict={} Exit_flags = True while Exit_flags: username = input("Please input username:") if username != 'exit': password = input("Please input passwod:") if password != 'exit': user_data.update({username:password}) m = hashlib.md5() # m.update('hello') # print(m.hexdigest()) for i in user_data: # print(i,user_data[i]) m.update(user_data[i].encode()) dict.update({i:m.hexdigest()}) else: break else: break f = open(userdb_file,'w') json.dump(dict,f) f.close() return userdb_file |
目录结构：
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
